Telescopic supporting leg, multi-leg support and shooting support

Abstract

A telescopic support leg (1a), a multi-leg support and a shooting support, the telescopic support leg (1a) comprises a first support member (100) and a second support member (200), the first support member (100) is provided with a first sliding groove (101), a first mounting opening (102) and a first positioning projection (110), the first mounting opening (102) corresponds to and is communicated with the first sliding groove (101), the second support member (200) comprises a support rod (210) and a second positioning projection (211a), and the second positioning projection (211a) corresponds to and is communicated with the first sliding groove (101). The first end of the supporting rod (210) is installed in the first sliding groove (101) in a sliding mode through the first installation opening (102) so as to change the length of the telescopic supporting foot (1a), and the second positioning protrusion (211a) can abut against or slide through the first positioning protrusion (110). The first installation opening (102) facilitates installation of the supporting rod (210), and the occupied volume of the telescopic supporting foot (1a) can be reduced by changing the length of the telescopic supporting foot (1a).

Description

Technical Field

[0001] This utility model relates to the field of support device technology, specifically to a telescopic support leg, a multi-leg bracket, and a shooting bracket. Background Technology

[0002] A support device is a device used to support electrical components such as fan heads, lamps, shooting terminals, mobile phones, and tablets. Support devices can be flat brackets, multi-leg brackets, etc.

[0003] Multi-legged stands generally have at least three legs, which support the main electrical component on a support surface (ground, tabletop, etc.). Existing multi-legged stands have legs that are too long, resulting in a large volume occupied by the legs when the multi-legged stand is not in use. For example, Chinese patent document with application number CN03274657.1 and publication number CN2690716Y discloses a tripod whose legs occupy a large volume when not in use. Utility Model Content

[0004] In view of the defects and deficiencies of the existing technology, the first objective of this utility model is to provide a telescopic support leg, a multi-leg bracket and a shooting bracket.

[0005] This utility model embodiment proposes a telescopic support leg, which serves as one of the legs of a multi-leg bracket. The telescopic support leg includes a first support member and a second support member. The first support member has at least one first sliding groove and at least one first mounting opening, with each first mounting opening corresponding to a first sliding groove and communicating with the corresponding first sliding groove. The second support member includes at least one support rod, with each support rod corresponding to a first sliding groove. The first end of the support rod can be inserted into the corresponding first sliding groove through the corresponding first mounting opening, allowing the support rod to be slidably mounted in the first sliding groove. The sliding of the support rod relative to the first sliding groove can change the length of the telescopic support leg. During the extension of the telescopic support leg, the first end of the support rod gradually moves away from the first support member. The support rod is configured to be positioned on the first support member when the telescopic support leg is in a supported state.

[0006] This utility model embodiment also proposes a multi-leg bracket, including a support rod and at least three legs, wherein the support rod is used to support the main electrical component, and the at least three legs are used to support the support rod; at least one of the at least three legs is a telescopic leg of any one of technical solutions 1-14.

[0007] This utility model embodiment also proposes a shooting bracket, including a shooting terminal and the multi-leg bracket, wherein the support rod of the multi-leg bracket is used to support the shooting terminal.

[0008] The telescopic support leg of this utility model embodiment has the following beneficial effects: When the telescopic support leg is not in use, the support rod can slide relative to the first support member to change the length of the telescopic support leg. By changing the length of the telescopic support leg, the volume occupied by the telescopic support leg can be reduced, thereby reducing the volume occupied by the multi-leg bracket with the telescopic support leg. Furthermore, the telescopic support leg has a first installation opening, facilitating the installation of the support rod onto the first support member. Moreover, the support rod and the pad are screwed together, making it convenient to install and disassemble the support rod. A first positioning protrusion and a second positioning protrusion are provided to provide a supporting force for the support rod to abut against the first support member, allowing the support rod to be positioned on the first support member in the supported state. The second positioning protrusion can slide past the first positioning protrusion without affecting the telescopic extension and retraction of the telescopic support leg. Furthermore, the first support member has a first installation opening, facilitating the installation of the support rod. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a structural schematic diagram of one implementation of the multi-leg bracket according to an embodiment of this utility model;

[0011] Figure 2 yes Figure 1 A schematic diagram of the multi-legged bracket from another angle;

[0012] Figure 3 yes Figure 2 An enlarged view of the structure at point A in the multi-legged support shown;

[0013] Figure 4 yes Figure 3 An enlarged view of the structure at point B in the structure shown;

[0014] Figure 5 yes Figure 3 An enlarged view of the structure at point C in the diagram shown;

[0015] Figure 6 yes Figure 5 An enlarged view of the structure at point E in the diagram shown;

[0016] Figure 7 yes Figure 3 An enlarged view of the structure at point D in the structure shown;

[0017] Figure 8yes Figure 1 A front view of the multi-legged support shown in a certain direction;

[0018] Figure 9 yes Figure 8 A top view of the multi-legged support shown;

[0019] Figure 10 yes Figure 9 The cross-sectional view of the multi-legged bracket shown is along line EE.

[0020] Figure 11 yes Figure 10 An enlarged view of the structure at point G in the diagram;

[0021] Figure 12 yes Figure 11 An enlarged view of the structure at point H in the structure shown;

[0022] Figure 13 yes Figure 12 An enlarged view of the structure at point J in the structure shown;

[0023] Figure 14 yes Figure 11 An enlarged view of the structure at point I in the structure shown;

[0024] Figure 15 This is a structural diagram illustrating another method of connecting the support rod and the pad.

[0025] Figure 16 This is a structural diagram illustrating another method of connecting the support rod and the pad.

[0026] Figure 17 This is a structural diagram illustrating another method of connecting the support rod and the pad.

[0027] Figure 18 This is a structural diagram illustrating another method of connecting the support rod and the pad.

[0028] Figure 19 This is a structural diagram illustrating another method of connecting the support rod and the pad.

[0029] Figure 20 This is a structural diagram illustrating another method of connecting the support rod and the pad.

[0030] Figure 21 This is a structural diagram illustrating another method of connecting the support rod and the pad.

[0031] Figure 22 yes Figure 9 The cross-sectional view of the multi-legged bracket shown is along line FF.

[0032] Figure 23 yes Figure 22An enlarged view of the structure at point K in the structure shown;

[0033] Figure 24 yes Figure 22 An enlarged view of the structure at point L in the structure shown;

[0034] Figure 25 yes Figure 24 The diagram shows the state of the pad and the first support member when the telescopic support leg is in its shortest state.

[0035] Figure 26 This is a state diagram showing another way in which the pad and the first support member cooperate when the telescopic outrigger is in its shortest state;

[0036] Figure 27 This is a state diagram showing another way in which the pad and the first support member cooperate when the telescopic outrigger is in its shortest state;

[0037] Figure 28 This is a state diagram showing another way in which the pad and the first support member cooperate when the telescopic outrigger is in its shortest state;

[0038] Figure 29 This is a state diagram showing another way in which the pad and the first support member cooperate when the telescopic outrigger is in its shortest state;

[0039] Figure 30 This is a state diagram showing another way in which the pad and the first support member cooperate when the telescopic outrigger is in its shortest state;

[0040] Figure 31 This is a state diagram showing another way in which the pad and the first support member cooperate when the telescopic outrigger is in its shortest state;

[0041] Figure 32 This is a structural schematic diagram of another implementation method of positioning the support rod of the telescopic support leg in the first support member according to an embodiment of the present utility model;

[0042] Figure 33 yes Figure 1 The diagram shown illustrates the structure of the multi-legged stand in its stowed state.

[0043] Figure 34 yes Figure 33 The diagram shows a multi-legged support structure from another angle.

[0044] Figure 35 yes Figure 34 The diagram shows the connection between the telescopic legs and the first link in the multi-leg bracket.

[0045] Figure 36 yes Figure 35 An enlarged view of the structure at point M in the structure shown;

[0046] Figure 37 yes Figure 35 Enlarged view of the structure at point N in the structure shown;

[0047] Figure 38 Based on Figure 1 The diagram shows a shooting support structure implemented using a multi-legged bracket.

[0048] Figure 39 This is a schematic diagram of another telescopic support leg according to an embodiment of the present utility model;

[0049] Figure 40 yes Figure 39 Rear view of the telescopic outrigger shown;

[0050] Figure 41 yes Figure 39 The diagram shows the state when the telescopic outrigger is extended to its maximum length.

[0051] Figure 42 yes Figure 41 Rear view of the telescopic outrigger shown;

[0052] Figure 43 yes Figure 42 Enlarged view of the structure at point P;

[0053] Figure 44 yes Figure 43 Enlarged view of the structure at point Q;

[0054] Figure 45 yes Figure 43 A schematic diagram of the structure from another angle (partially shown);

[0055] Figure 46 yes Figure 45 Enlarged view of the structure at point R in the middle;

[0056] Figure 47 yes Figure 45 The diagram shows the structure after the support rods are concealed.

[0057] Figure 48 yes Figure 47 An enlarged view of the structure at point S in the structure shown;

[0058] Figure 49 This is a schematic diagram of another multi-legged bracket according to an embodiment of the present invention;

[0059] Figure 50 yes Figure 49 A schematic diagram of the multi-legged bracket from another angle;

[0060] Figure 51 yes Figure 49A front view of the multi-legged bracket shown in a certain direction;

[0061] Figure 52 yes Figure 51 The cross-sectional view of the multi-legged bracket shown is along line WW.

[0062] Figure 53 yes Figure 52 An enlarged view of the structure at point T in the structure shown;

[0063] Figure 54 yes Figure 49 A front view of the multi-legged bracket shown in a certain direction;

[0064] Figure 55 yes Figure 54 The cross-sectional view of the multi-legged bracket shown along line XX;

[0065] Figure 56 yes Figure 55 An enlarged view of the structure at point U in the structure shown;

[0066] Figure 57 yes Figure 55 An enlarged view of the structure at point V in the structure shown;

[0067] Figure 58 yes Figure 49 A three-dimensional structural diagram of the telescopic legs of the multi-legged bracket shown;

[0068] Figure 59 yes Figure 58 An enlarged view of the structure at point I in the structure shown;

[0069] Figure 60 yes Figure 58 An enlarged view of the structure at point II in the structure shown;

[0070] Figure 61 yes Figure 58 A schematic diagram of the second support member in the structure shown;

[0071] Figure 62 yes Figure 61 An enlarged view of the structure at point W in the structure shown;

[0072] Figure 63 yes Figure 62 A schematic diagram of the protrusion in the structure shown;

[0073] Figure 64 yes Figure 58 A schematic diagram of the first support member in the structure shown;

[0074] Figure 65 Based on Figure 58A schematic diagram of another implementation method of positioning the support rod of the telescopic outrigger in the first support member;

[0075] Figure 66 yes Figure 57 An enlarged view of the structure at point Y in the structure shown;

[0076] Figure 67 yes Figure 10 A schematic diagram showing the installation process of one of the legs of the multi-leg bracket shown.

[0077] Figure 68 yes Figure 67 An enlarged view of the structure at point Z in the diagram. Detailed Implementation

[0078] The present invention will be further described in detail below with reference to the accompanying drawings.

[0079] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0080] Reference Figures 1 to 48 Special reference Figure 5 , Figure 7 , Figure 12 , Figure 37 , Figure 40 , Figure 46 This utility model embodiment proposes a telescopic support leg 1a, which serves as one of the legs 1 of a multi-leg bracket. The telescopic support leg 1a includes a first support member 100 and a second support member 200. The first support member 100 is provided with at least one first sliding groove 101 and at least one first mounting opening 102. The at least one first mounting opening 102 corresponds to at least one first sliding groove 101 and communicates with the corresponding first sliding groove 101. The second support member 200 includes at least one support rod 210 and at least one support... The rod 210 corresponds to at least one first sliding groove 101. The first end of the rod 210 can be inserted into the corresponding first sliding groove 101 through the corresponding first mounting opening 102 so that the rod 210 is slidably mounted in the first sliding groove 101. The rod 210 is slidably mounted in the corresponding first sliding groove 101 to change the length of the telescopic leg 1a. During the extension of the telescopic leg 1a, the first end of the rod 210 gradually moves away from the first support member 100. The rod 210 is configured to be positioned on the first support member 100 when the telescopic leg 1a is in the supported state.

[0081] In implementing this embodiment of the utility model, the telescopic support leg 1a, when not in use of the multi-leg bracket, allows the support rod 210 to slide relative to the first sliding groove 101, thus shortening the length of the telescopic support leg 1a and reducing its volume, thereby reducing the volume occupied by the multi-leg bracket. Furthermore, the telescopic support leg 1a is provided with a first mounting opening 102, facilitating the mounting of the support rod 210 to the first support member 100.

[0082] Understandably, when the telescopic outrigger 1a is extended to its longest position, the first end of the support rod 210 extends out from the first sliding groove 101.

[0083] Understandably, the number of first mounting openings 102 is the same as the number of first sliding grooves 101, and the number of support rods 210 is the same as the number of first sliding grooves 101.

[0084] For example, a multi-legged support can be a tripod, quadruped, pentagonal, or hexapod, meaning the number of legs 1 on the multi-legged support can be 3, 4, 5, 6, etc.

[0085] For example, refer to Figure 38 The multi-legged stand is used to support the main power supply unit 2, which can be a fan, lamp, mobile phone, tablet, camera, etc. For example, when the main power supply unit 2 is a lamp, the multi-legged stand can be a lighting stand; when the main power supply unit 2 is a shooting terminal 2 such as a mobile phone, tablet, or camera, the multi-legged stand can be a shooting stand.

[0086] For example, refer to Figure 37 The first mounting opening 102 is connected to the end of the first sliding groove 101, or the first mounting opening 102 is connected to the side of the first sliding groove 101, or the first mounting opening 102 is connected to both the end and the side of the first sliding groove 101. The advantage of providing the first mounting opening 102 is that it facilitates the insertion of the support rod 210 into the first sliding groove 101. It can be understood that the first mounting opening 102 can be any opening that facilitates the insertion of the support rod 210 into the first sliding groove 101.

[0087] For example, the support rod 210 can be positioned at any location relative to the first support member 100, or the support rod 210 can be positioned at a specific location relative to the first support member 100.

[0088] For example, the support rod 210 makes damped contact with the first sliding groove 101 so that it can be positioned on the first support member 100 when the telescopic leg 1a is in the supported state. For example, the support rod 210 and the first sliding groove 101 are interference-fitted, or the support rod 210 and the inner wall of the first sliding groove 101 are provided with damping pads.

[0089] For example, a locking member is provided between the support rod 210 and the first support member 100; when the telescopic outrigger 1a is in the supported state, the locking member locks the support rod 210 to the first support member 100. The locking member can be installed on the first support member 100, and adjusting the locking member can lock or unlock the support rod 210 relative to the first support frame. For example, the locking member can be a threaded part that is threadedly installed on the first support member 100, and rotating the threaded part can cause it to abut or loosen against the support rod 210. The locking member can also be a cam-type locking member installed on the first support member 100, and rotating the boss-type locking member can cause it to abut or loosen against the support rod 210.

[0090] For example, refer to Figure 6 , Figure 46 The first support member 100 has a first positioning protrusion 110, and the support rod 210 has a second positioning protrusion 211a. When the support rod 210 slides relative to the first sliding groove 101, the second positioning protrusion 211a abuts against or slides past the first positioning protrusion 110. When the second positioning protrusion 211a abuts against the first positioning protrusion 110, the support rod 210 is positioned on the first support member 100 when the telescopic support leg 1a is in the supported state. For example, the protrusion 211 or a part of the protrusion 211 can be the second positioning protrusion 211a.

[0091] For example, refer to Figure 32 or Figure 65 In the telescopic outrigger 1a, when the support rod 210 is only subjected to tension or pressure along its sliding direction, the support rod 210 and the first support member 100 are in a loose or tight fit, for example, the support rod 210 and the first sliding groove 101 are in a clearance fit. When the telescopic outrigger 1a is in a supported state (for example only, the angle between the telescopic direction of the telescopic outrigger 1a and the vertical line can be 45°-89.9°, for example 45°, 60°, 67°, 75°, etc.), the pressure F of the first support member 100 on the support rod 210 can be decomposed into a component force F1 perpendicular to its sliding direction and a component force F2 along its sliding direction. The component force F1 causes a frictional force (tangential constraint force) f between the first support member 100 and the first support member 100. When f = F2, the support rod 210 is positioned on the first support member 100. The first support member 100 has a first contact surface 103 that contacts the support rod 210. When the telescopic support leg 1a is in the supported state, the support rod 210 is in frictional contact with the first contact surface 103. F1 is parallel to the first contact surface 103, F2 is perpendicular to the first contact surface 103, and f is parallel to the first contact surface 103. When f = F2, the support rod 210 is positioned on the first support member 100. The first contact surface 103 can be two opposite sides of the first sliding groove 101.

[0092] For example, when the telescopic leg 1a is in the supported state, the first support member 100 is supported on a support surface 1001, or the second support member 200 is supported on a support surface 1001.

[0093] For example, when the telescopic outrigger 1a is in the supported state, the first support member 100 is supported on a support surface 1001, the support rod 210 can be directly supported on the support surface 1001, or the support rod 210 can be indirectly supported on the support surface 1001.

[0094] For example, the first sliding groove 101 is a columnar groove (which can be a single columnar groove, a stepped columnar groove, etc.), such as a cylindrical groove, a square columnar groove, a polygonal columnar groove, etc. It is understood that when the first support member 100 is an injection molded part, the first sliding groove 101 is allowed to have a certain draft angle. In this case, the first sliding groove 101 is an approximately columnar groove.

[0095] For example, the first sliding groove 101 can be a groove of any shape to accommodate the sliding of the support rod 210.

[0096] For example, the support rod 210 can be columnar (it can be a single column, stepped column, etc.), such as a cylindrical rod, a square column, a polygonal column, etc.

[0097] In some implementations of the embodiments of this utility model, reference is made to Figures 1-48 Special reference Figure 10 , Figure 38 The first support member 100 is configured to support a support surface 1001 when the telescopic leg 1a is in the supported state. The second support member 200 also includes a pad 220, which is configured to support the support surface 1001 when the telescopic leg 1a is in the supported state. After the support rod 210 is inserted into the first sliding groove 101 through the first mounting opening 102, the first end of the support rod 210 can extend out of the first sliding groove 101 so that the support rod 210 and the pad 220 are detachably connected.

[0098] The advantage of detachably installing the foot 220 and the support rod 210 is that it facilitates the insertion of the support rod 210 into the first sliding position through the first mounting opening 102.

[0099] For example, the first end of the support rod 210 is detachably connected to the foot 220.

[0100] In other examples, the remaining portion of the support rod 210 extending from the first sliding groove 101 is detachably connected to the foot 220.

[0101] For example, the foot 220 is a single unit, and at least one support rod 210 is detachably connected to the foot 220.

[0102] For example, foot 220 includes at least one spaced pad, and at least one support rod 210 is detachably connected to at least one pad.

[0103] For example, the foot 220 can be any shape, such as block, strip, sheet, etc.

[0104] For example, refer to Figures 25-31 , Figure 42 , Figure 58 The foot 220 has a support portion 221. When the telescopic foot 1a is supported on the support surface 1001, the support portion 221 contacts the support surface 1001. The support portion 221 can be made of soft materials such as rubber or plastic.

[0105] In some implementations of the embodiments of this utility model, reference is made to Figure 1-48 Special reference Figure 3 , Figure 42 The support rod 210 includes a rod portion 212 and a protrusion 211, with the protrusion 211 protruding from the rod portion 212. The rod portion 212 has a first end, which can be inserted into a corresponding first sliding groove 101 through a corresponding first mounting opening 102 so that the support rod 210 is slidably mounted in the first sliding groove 101. The first end of the rod portion 212 extends out of the first sliding groove 101 so that the rod portion 212 is detachably connected to the foot 220. During the extension of the telescopic support foot 1a, the first end of the support rod 210 gradually moves away from the first support member 100.

[0106] During the process of inserting the support rod 210 into the first sliding groove 101 through the first mounting opening 102, the first end of the rod portion 212 passes through the first mounting opening 102 and the first sliding groove 101 in sequence. A first limiting wall 104 is provided in the first sliding groove 101. After the support rod 210 is installed in the first sliding groove 101, the first limiting wall 104 is located between the protrusion 211 and the first end of the rod portion 212. The protrusion 211 is configured to abut against the first limiting wall 104 when the telescopic leg 1a is extended to its longest state. The advantage of providing the first limiting wall 104 is that it prevents the support rod 210 from coming out of the first sliding groove 101 during the extension of the telescopic leg 1a, thus ensuring the integrity of the telescopic leg 1a during use.

[0107] Understandably, the first end or other part of the rod 212 is detachably connected to the foot 220.

[0108] Understandably, the first end of the rod 212 is the first end of the support rod 210.

[0109] For example, when the telescopic outrigger 1a is in the supported state, the support rod 210 can be positioned on the first support member 100. This can be achieved by the cooperation of the rod portion 212 with the first sliding groove 101, or by the cooperation of the protrusion 211 with the first sliding groove 101, or by the cooperation of the rod portion 212, the protrusion 211 and the first sliding groove 101.

[0110] For example, the protrusion 211 is located at one end or other part of the rod portion 212.

[0111] For example, the rod 212 is columnar, such as cylindrical, polygonal columnar, etc.

[0112] For example, the protrusion 211 is columnar, such as cylindrical, polygonal columnar, etc.

[0113] In other examples, the support rod 210 consists only of the rod portion 212.

[0114] Some implementations of the embodiments of this utility model are described below. Figures 1-65 Special reference Figure 5 , Figure 46 , Figures 58-60 The first sliding groove 101 includes a first sliding sub-groove 101a and a second sliding sub-groove 101b. The first sliding sub-groove 101a is connected to the second sliding sub-groove 101b. The first mounting opening 102 is connected to the first sliding sub-groove 101a. The first sliding sub-groove 101a is adapted to the protrusion 211 of the support rod 210. The second sliding sub-groove 101b is adapted to the rod portion 212 of the support rod 210. The first limiting wall 104 is located in the first sliding sub-groove 101a.

[0115] The advantage of the above configuration is that it makes the sliding of the support rod 210 relative to the first support member 100 more stable.

[0116] It is understandable that the first sliding sub-groove 101a is adapted to the cross-sectional shape of the protrusion 211, and the second sliding sub-groove 101b is matched with the cross-sectional shape of the rod 212.

[0117] For example, the first sliding sub-groove 101a and the second sliding sub-groove 101b are directly connected, and the first limiting wall 104 is located at the junction of the first sliding sub-groove 101a and the second sliding sub-groove 101b.

[0118] In other examples, the first sliding sub-slot 101a and the second sliding sub-slot 101b are indirectly connected.

[0119] For example, the support rod 210 can be positioned in the first sliding groove 101, which can be achieved by the cooperation of the first sliding sub-groove 101a with the protrusion 211, or by the cooperation of the second sliding sub-groove 101b with the rod portion 212.

[0120] For example, the first limiting wall 104 is located at other positions of the first sliding sub-groove 101a.

[0121] For example, the first sliding sub-groove 101a is a columnar groove, the second sliding sub-groove 101b is a columnar groove, etc.

[0122] For example, the first sliding sub-groove 101a is an approximately columnar groove (truncate groove) with a certain draft angle.

[0123] For example, the first sliding sub-slot 101a is indirectly connected to the second sliding sub-slot 101b.

[0124] In some implementations of the embodiments of this utility model, reference is made to Figure 13 , Figure 46 The first sliding sub-groove 101a is provided with a first positioning protrusion 110. When the support rod 210 slides relative to the first sliding groove 101, the protrusion 211 abuts against or slides past the first positioning protrusion 110. When the protrusion 211 abuts against the first positioning protrusion 110, the support rod 210 is positioned on the first support member 100 when the telescopic support leg 1a is in the supported state. The first mounting opening 102 is connected to the second sliding sub-groove 101b. The first mounting opening 102 is configured to serve as the deformation space of the support rod 210 when the protrusion 211 slides past the first positioning protrusion 110.

[0125] The advantages of providing the first positioning protrusion 110 and the protrusion 211 are that when the protrusion 211 abuts against the first positioning protrusion 110, it provides a supporting force for the support rod 210 to abut against the first support member 100, so that the support rod 210 can be positioned against the first support member 100 in the supported state. Furthermore, the protrusion 211 can slide past the first positioning protrusion 110 without affecting the extension and retraction of the telescopic support leg 1a. The first mounting opening 102 also serves as a deformation space for the support rod 210, making the structure of the telescopic support leg 1a more compact.

[0126] For example, the protrusion 211 sliding over the first positioning protrusion 110 can mean that when the telescopic leg 1a is in a supported state, with the protrusion 211 abutting against the first positioning protrusion 110, and when the pressure on the telescopic leg 1a is large enough, the protrusion 211 slides over the first positioning protrusion 110, so that the support rod 210 can be stored in the first support member 100.

[0127] For example, the sliding of the protrusion 211 over the first positioning protrusion 110 can also refer to the following: when the telescopic leg 1a is in a shortest state (or other state), the first positioning protrusion 110 and the protrusion 211 do not abut against each other. When the tension on the telescopic leg 1a is large enough, the support rod 210 extends relative to the first support member 100, and the protrusion 211 slides over the first positioning protrusion 110. After the protrusion 211 slides over the first positioning protrusion 110, the protrusion 211 can abut against the first positioning protrusion 110 to achieve the support rod 210 being positioned on the first support member 100 in the supported state.

[0128] Obviously, the abutment between the protrusion 211 and the first positioning protrusion 110 enables the telescopic leg 1a to position the support rod 210 on the first support member 100 at a specific length.

[0129] For example, in one implementation, the telescopic outrigger 1a positions the support rod 210 on the first support member 100 through the cooperation of the protrusion 211 with the first positioning protrusion 110.

[0130] For example, as the protrusion 211 slides over the first positioning protrusion 110, the protrusion 211 deforms, and / or the first positioning protrusion 110 deforms, thereby allowing the protrusion 211 to slide over the first positioning protrusion 110.

[0131] For example, the first positioning protrusion 110 has two opposing first sidewalls 111. The distance between the two first sidewalls 111 narrows from the bottom to the top of the first positioning protrusion 110. The protrusion 211 can abut against the first sidewalls 111. During the process of the protrusion 211 sliding past the first positioning protrusion 110, the protrusion 211 slides into contact with the first sidewalls 111 and slides into contact with the top of the first positioning protrusion 110. The advantage of this arrangement is that during the process of the protrusion 211 sliding past the first positioning protrusion 110, wear on the protrusion 211 and the first positioning protrusion 110 is less likely to occur.

[0132] For example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are gradually transitioned, for example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are smoothly curved, or for example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are inclined.

[0133] It is understandable that when the protrusion 211 abuts against the first positioning protrusion 110, the protrusion 211 abuts against one of the first sidewalls 111 of the first positioning protrusion 110.

[0134] In some implementations of the embodiments of this utility model, reference is made to Figures 39-48The second sliding sub-groove 101b surrounds the rod portion 212 and extends to the first cross-section, which is perpendicular to the telescopic support leg 1a's telescopic direction. The first mounting opening 102 extends to the first cross-section, and the second sliding sub-groove 101b extends to the first cross-section. The second sliding sub-groove 101b and the first mounting opening 102 are located on opposite sides of the first cross-section. Between the first limiting wall 104 and the first positioning protrusion 110 is a retaining space 105 adapted to the protrusion 211, which is used to retain the protrusion 211. The rod portion 21 2 is cylindrical; the maximum thickness of the first positioning protrusion 110 is 5%-15% of the diameter of the rod 212; the third section is perpendicular to the telescopic support leg 1a, the first positioning protrusion 110 extends to the third section, the first positioning protrusion 110 and the second sliding sub-groove 101b are located on opposite sides of the third section; the distance from the third section to the first section is greater than or equal to one times the diameter of the rod 212; when the protrusion 211 slides past the first positioning protrusion 110, a section of the rod 212 is exposed from the second sliding sub-groove 101b so that the support rod 210 can be bent and deformed.

[0135] The advantage of the above configuration is that when the protrusion 211 slides past the first positioning protrusion 110, the rod 212 is exposed from the second sliding sub-groove 101b, and the maximum thickness of the first positioning protrusion 110 is 5%-15% of the diameter of the rod 212, and the distance from the top of the first positioning protrusion 110 to the first cross-section is greater than or equal to twice the diameter of the rod 212, making the support rod 210 easier to deform and facilitating the telescopic use of the telescopic support leg 1a.

[0136] Another advantage is that after the protrusion 211 slides past the first positioning protrusion 110, it is precisely locked in the locking space 105, which prevents the support rod 210 from becoming loose or sliding relative to the first support member 100 when the user lifts the multi-leg bracket in the supported state.

[0137] Understandably, the extension of the second sliding sub-groove 101b to the first cross section means that one end (or edge) of the second sliding sub-groove 101b is in contact with the first cross section, and the second sliding sub-groove 101b is located on one side of the first cross section.

[0138] Understandably, the first mounting opening 102 extending to the first cross section means that one end (or edge) of the first mounting opening 102 is in contact with the first cross section, and the first mounting opening 102 is located on one side of the first cross section.

[0139] Understandably, the extension of the first positioning protrusion 110 to the third section means that one end (or edge) of the first positioning protrusion 110 is in contact with the third section, and the first positioning protrusion 110 is located on one side of the first section.

[0140] For example, the first limiting wall 104 may correspond to the first positioning protrusion 110 in the telescopic direction, or the first limiting wall 104 may not correspond to the first positioning protrusion 110 in the telescopic direction.

[0141] For example, the second sliding sub-slot 101b is a cylindrical slot, and the second sliding sub-slot 101b has a clearance fit, transition fit, or interference fit with the rod portion 212.

[0142] For example, the second sliding sub-groove 101b is an approximately cylindrical groove with a certain draft angle, and the second sliding sub-groove 101b is clearance fit, transition fit or interference fit with the rod portion 212.

[0143] For example, the maximum thickness of the first positioning protrusion 110 is the distance from the top of the first positioning protrusion 110 to the inner wall of the first sliding sub-groove 101a.

[0144] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 46 The protrusion 211 is located at the second end of the rod 212; the rod 212 is screwed into the pad 220. The protrusion 211 is provided with a first adjustment part 211b. After the support rod 210 is inserted into the first sliding groove 101 through the first mounting opening 102, the first adjustment part 211b is configured to cooperate with an adjustment member. The adjustment member has a second adjustment part adapted to the first adjustment part 211b. The adjustment member can cooperate with the first adjustment part 211b through the first mounting opening 102 and rotate. The adjustment member is configured to drive the rod 212 to rotate when it rotates so that the rod 212 is fastened or loosened from the pad 220. The first adjustment part 211b is a first adjustment groove 211b, and the second adjustment part is a second adjustment protrusion, or the first adjustment part 211b is a first adjustment protrusion 211b, and the second adjustment part is a second adjustment groove.

[0145] The advantage of the above configuration is that it makes it easy to install the support rod 210 onto the pad 220 by rotating it.

[0146] For example, the screw-in connection can be a threaded connection or a non-threaded connection. For instance, the rod portion 212 is provided with a protrusion, and the pad 220 is provided with a non-spiral groove. The protrusion and the groove are adapted to each other, and rotating the rod portion 212 can cause the rod portion 212 to screw into the pad 220.

[0147] For example, the adjustment element can be a screwdriver, which the user can operate.

[0148] For example, the adjusting element can be a drive rod that is driven by a machine, such as the output shaft of a motor.

[0149] For example, the first adjustment groove 211b can be a plum blossom groove, a straight groove, a cross groove, a polygonal groove, etc., and the second adjustment protrusion can be a plum blossom protrusion, a straight protrusion, a cross protrusion, a polygonal protrusion, etc., that are adapted to the first adjustment groove 211b.

[0150] For example, the first adjustment protrusion 211b can be a plum blossom protrusion, a straight protrusion, a cross protrusion, a polygonal protrusion, etc., and the second adjustment groove can be a plum blossom groove, a straight groove, a cross groove, a polygonal groove, etc.

[0151] It is understood that the first adjusting groove 211b can be of any shape that is circumferentially fixed relative to the second adjusting protrusion. The first adjusting protrusion 211b can be of any shape that is circumferentially fixed relative to the second adjusting protrusion.

[0152] In some implementations of the embodiments of this utility model, reference is made to Figure 14-21 The support rod 210 is riveted to the pad 220, the support rod 210 is snapped to the pad 220, or the support rod 210 is magnetically connected to the pad 220.

[0153] The advantage of the above configuration is that when the telescopic support leg 1a is in its shortest state, the pad 220 can be held in the first support member 100, making it easy for the second support member 200 to be stored in the first support member 100.

[0154] For example, refer to Figure 18 The support rod 210 includes a riveting portion 214 that can pass through and be riveted to the foot 220; or, the foot 220 has a riveting portion 214 that passes through the support rod 210 and is riveted to the foot 220.

[0155] For example, refer to Figure 16 The support rod 210 and the pad 220 are interference-fitted in hole 208, or, refer to Figure 17 The hole 208 of the support rod 210 is interference-fitted with the post 226 of the pad 220.

[0156] Reference Figure 19 , Figure 20 The support rod 210 is provided with a third locking part 213, and the pad 220 is provided with a fourth locking part 222. The third locking part 213 and the fourth locking part 222 are engaged in a locking fit.

[0157] For example, refer to Figure 19 , Figure 20 The third engaging portion 213 has an engaging protrusion, and the fourth engaging portion 222 has an engaging groove that matches the engaging protrusion; alternatively, the fourth engaging portion 222 has an engaging protrusion, and the third engaging portion 213 has an engaging groove that matches the engaging protrusion. To facilitate the engagement and disengagement of the engaging protrusion or engaging groove, the engaging protrusion is provided on a cantilever, or the engaging groove is provided on a cantilever.

[0158] For example, refer to Figure 19 The third locking portion 213 has a third cantilever 213a and a locking protrusion provided on the third cantilever 213a. The fourth locking portion 222 has a matching locking groove. The locking protrusion can slide into the locking groove to lock the support rod 210 into the pad 220, and the locking protrusion can slide out of the locking groove to disengage the support rod 210 from the pad 220. During the process of the locking protrusion sliding into or out of the locking groove, the third cantilever 213a undergoes elastic deformation.

[0159] For example, the third locking portion 213 has a third cantilever 213a and a locking groove provided on the third cantilever 213a, and the fourth locking portion 222 has a matching locking protrusion. The locking protrusion can slide into the locking groove to lock the support rod 210 into the pad 220, and the locking protrusion can slide out of the locking groove to disengage the support rod 210 from the pad 220. During the process of the locking protrusion sliding into or out of the locking groove, the third cantilever 213a undergoes elastic deformation.

[0160] For example, refer to Figure 20 The fourth locking portion 222 has a fourth cantilever 222a and a locking protrusion provided on the fourth cantilever 222a. The third locking portion 213 has a matching locking groove. The locking protrusion can slide into the locking groove to lock the support rod 210 into the pad 220, and the locking protrusion can slide out of the locking groove to disengage the support rod 210 from the pad 220. During the process of the locking protrusion sliding into or out of the locking groove, the fourth cantilever 222a undergoes elastic deformation.

[0161] For example, the fourth locking portion 222 has a fourth cantilever 222a and a locking groove provided in the fourth cantilever 222a, and the third locking portion 213 has a matching locking protrusion. The locking protrusion can slide into the locking groove to lock the support rod 210 into the pad 220, and the locking protrusion can slide out of the locking groove to disengage the support rod 210 from the pad 220. During the process of the locking protrusion sliding into or out of the locking groove, the fourth cantilever 222a undergoes elastic deformation.

[0162] For example, refer to Figure 21 The support rod 210 is provided with a first magnetic attraction part 216, and the pad foot 220 is provided with a second magnetic attraction part 227. The first magnetic attraction part 216 and the second magnetic attraction part 227 attract each other. The first magnetic attraction part 216 and the second magnetic attraction part 227 are both permanent magnets, or the first magnetic attraction part 216 is a permanent magnet and the second magnetic attraction part 227 is a ferromagnetic material, or the first magnetic attraction part 216 is a ferromagnetic material and the second magnetic attraction part 227 is a permanent magnet.

[0163] In some implementations of the embodiments of this utility model, reference is made to Figures 25-31 , Figure 45 , Figure 66The first support member 100 is provided with a first locking part 120, and the pad 220 is provided with a second locking part 223; the first locking part 120 is configured to lock into the second locking part 223 when the telescopic support leg 1a is retracted to its shortest state.

[0164] For example, refer to Figure 25 or Figure 45 The first engaging portion 120 has a first cantilever 120a and an engaging protrusion provided on the first cantilever 120a. The second engaging portion 223 has a matching engaging groove. The engaging protrusion can slide into the engaging groove so that the pad 220 engages with the first support member 100. The engaging protrusion can slide out of the engaging groove so that the pad 220 disengages from the first support member 100. It is understood that during the process of the engaging protrusion sliding into or out of the engaging groove, the first cantilever 120a undergoes elastic deformation.

[0165] For example, refer to Figure 26 The first engaging portion 120 has a first cantilever 120a and an engaging groove provided on the first cantilever 120a. The second engaging portion 223 has a matching engaging protrusion. The engaging protrusion can slide into the engaging groove so that the pad 220 engages with the first support member 100. The engaging protrusion can slide out of the engaging groove so that the pad 220 disengages from the first support member 100. It is understood that during the process of the engaging protrusion sliding into or out of the engaging groove, the first cantilever 120a undergoes elastic deformation.

[0166] For example, refer to Figure 27 Or refer to Figure 66 The second engaging portion 223 has a second cantilever 223a and an engaging protrusion provided on the second cantilever 223a. The first engaging portion 120 has a matching engaging groove. The engaging protrusion can slide into the engaging groove so that the pad 220 engages with the first support member 100. The engaging protrusion can slide out of the engaging groove so that the pad 220 disengages from the first support member 100. It is understood that during the process of the engaging protrusion sliding into or out of the engaging groove, the second cantilever 223a undergoes elastic deformation.

[0167] For example, refer to Figure 28 The second engaging portion 223 has a second cantilever 223a and an engaging groove provided on the second cantilever 223a. The first engaging portion 120 has a matching engaging protrusion. The engaging protrusion can slide into the engaging groove so that the pad 220 engages with the first support member 100. The engaging protrusion can slide out of the engaging groove so that the pad 220 disengages from the first support member 100. It is understood that during the process of the engaging protrusion sliding into or out of the engaging groove, the second cantilever 223a undergoes elastic deformation.

[0168] For example, refer to Figure 29The first support member 100 is provided with a column 160 and the pad 220 is provided with a hole 209. The column 160 of the first support member 100 and the hole 209 of the pad 220 are interference fit so that the pad 220 is kept on the first support member 100 when the telescopic support leg 1a is in its shortest state.

[0169] For example, refer to Figure 30 The first support member 100 is provided with a hole 1011, and the foot 220 is provided with a post 228. The hole 1011 of the first support member 100 and the post 228 of the foot 220 are interference fit so that the foot 220 is kept on the first support member 100 when the telescopic foot 1a is in its shortest state.

[0170] Other examples, see [reference] Figure 31 The first support member 100 is provided with a third magnetic attraction part 130, and the foot 220 is provided with a fourth magnetic attraction part 224. The third magnetic attraction part 130 and the fourth magnetic attraction part 224 attract each other. The third magnetic attraction part 130 and the fourth magnetic attraction part 224 are both permanent magnets, or the third magnetic attraction part 130 is a permanent magnet and the fourth magnetic attraction part 224 is a ferromagnetic material, or the third magnetic attraction part 130 is a ferromagnetic material and the fourth magnetic attraction part 224 is a permanent magnet.

[0171] In some implementations of the embodiments of this utility model, reference is made to Figure 33 , Figure 39 , Figure 49 The foot 220 has a second limiting wall 201, which is configured to abut against the first support member 100 when the telescopic foot 1a is retracted to its shortest state; the first support member 100 has a first approach edge 106a, and the foot 220 has a second approach edge 202a, which aligns with the first approach edge 106a and the second approach edge 202a when the telescopic foot 1a is retracted to its shortest state.

[0172] The advantages of the above arrangement are that, on the one hand, it avoids the second support member 200 being excessively retracted into the first support member 100, and on the other hand, the first approach side 106a is aligned with the second approach side 202a, making the structure of the telescopic leg 1a more compact.

[0173] It is understandable that the first approach edge 106a is the edge of the first support member 100 near the pad 220, and the second approach edge 202a is the edge of the pad 220 near the first support member 100.

[0174] For example, the first approach edge 106a surrounds the first support 100, and the second approach edge 202a surrounds the foot 220.

[0175] For example, a portion of the first approach edge 106a is disposed around the first support member 100, and a portion of the second approach edge 202a is disposed around the foot pad 220. For instance, half of the first approach edge 106a is disposed around the first support member 100, and half of the second approach edge 202a is disposed around the foot pad 220.

[0176] For example, when the telescopic leg 1a is extended to its shortest state, the second limiting wall 201 abuts against the end of the first support member 100.

[0177] In some implementations of the embodiments of this utility model, reference is made to Figure 3 , Figure 43 , Figure 58 There are two support rods 210 and two first sliding grooves 101, which are located on opposite sides of the first support member 100.

[0178] The advantage of this design is that the second support member 200 is circumferentially fixed to the first support member 100, and the telescopic support leg 1a is more stable when in the support state.

[0179] Other examples show that the number of support rods 210 is 1, 3, 4, 5, etc.

[0180] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 46 The first support member 100 has a first positioning protrusion 110, and the support rod 210 has a second positioning protrusion 211a. When the support rod 210 slides relative to the first sliding groove 101, the second positioning protrusion 211a abuts against or slides past the first positioning protrusion 110. When the second positioning protrusion 211a abuts against the first positioning protrusion 110, the support rod 210 is positioned on the first support member 100 when the telescopic support leg 1a is in the supported state.

[0181] The advantage of providing the first positioning protrusion 110 and the second positioning protrusion 211a is that when the second positioning protrusion 211a abuts against the first positioning protrusion 110, it provides a supporting force for the support rod 210 to abut against the first support member 100, so that the support rod 210 can be positioned against the first support member 100 when the telescopic leg 1a is in the supported state. Furthermore, the second positioning protrusion 211a can slide past the first positioning protrusion 110 without affecting the extension and retraction of the telescopic leg 1a.

[0182] For example, the second positioning protrusion 211a sliding over the first positioning protrusion 110 can mean that when the telescopic leg 1a is in a supported state, with the second positioning protrusion 211a abutting against the first positioning protrusion 110, and when the pressure on the telescopic leg 1a is large enough, the second positioning protrusion 211a slides over the first positioning protrusion 110, so that the support rod 210 can be stored in the first support member 100.

[0183] For example, the second positioning protrusion 211a sliding past the first positioning protrusion 110 can also refer to the following: when the telescopic leg 1a is in a retracted state, the first positioning protrusion 110 and the second positioning protrusion 211a do not abut against each other. When the tension on the telescopic leg 1a is large enough, the support rod 210 extends relative to the first support member 100, and the second positioning protrusion 211a slides past the first positioning protrusion 110. After the second positioning protrusion 211a slides past the first positioning protrusion 110, the second positioning protrusion 211a can abut against the first positioning protrusion 110 to achieve the support rod 210 being positioned on the first support member 100 in the supported state.

[0184] Obviously, the abutment between the second positioning protrusion 211a and the first positioning protrusion 110 enables the telescopic leg 1a to position the support rod 210 on the first support member 100 at a specific length.

[0185] For example, in one implementation, the telescopic outrigger 1a positions the support rod 210 on the first support member 100 through the cooperation of the second positioning protrusion 211a and the first positioning protrusion 110.

[0186] For example, during the process of the second positioning protrusion 211a sliding past the first positioning protrusion 110, the second positioning protrusion 211a deforms, and / or the first positioning protrusion 110 deforms, thereby allowing the second positioning protrusion 211a to slide past the first positioning protrusion 110. (The deformation of the second positioning protrusion 211a can be understood as the deformation of the second positioning protrusion 211a itself, or the deformation of the component supporting the second positioning protrusion 211a; the deformation of the first positioning protrusion 110 can be understood as the deformation of the first positioning protrusion 110 itself, or the deformation of the component supporting the first positioning protrusion 110).

[0187] For example, the first positioning protrusion 110 has two opposing first sidewalls 111. The distance between the two first sidewalls 111 narrows from the bottom end to the top end of the first positioning protrusion 110. The second positioning protrusion 211a can abut against the first sidewalls 111. During the process of the second positioning protrusion 211a sliding past the first positioning protrusion 110, the second positioning protrusion 211a slides into contact with the first sidewalls 111 and slides into contact with the top end of the first positioning protrusion 110. The advantage of this arrangement is that during the process of the second positioning protrusion 211a sliding past the first positioning protrusion 110, wear on the second positioning protrusion 211a and the first positioning protrusion 110 is less likely to occur.

[0188] For example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are gradually transitioned, for example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are smoothly curved, or for example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are inclined.

[0189] It is understandable that when the second positioning protrusion 211a abuts against the first positioning protrusion 110, the second positioning protrusion 211a abuts against one of the first sidewalls 111 of the first positioning protrusion 110.

[0190] For example, the second positioning protrusion 211a may be a protrusion 211, or the second positioning protrusion 211a may be a part of the protrusion 211.

[0191] For example, the shape of the second positioning protrusion 211a may be similar to or the same as that of the first positioning protrusion 110.

[0192] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figures 46-48 The support rod 210 includes a rod portion 212 and a protrusion 211, with the protrusion 211 protruding from the rod portion 212. The first end of the rod portion 212 can be inserted into the corresponding first sliding groove 101 through the corresponding first mounting opening 102, so that the support rod 210 is slidably mounted in the first sliding groove 101. During the extension of the telescopic support leg 1a, the first end of the support rod 212 gradually moves away from the first support member 100. During the process of the support rod 210 being inserted into the first sliding groove 101 through the first mounting opening 102, the first end of the rod portion 212 passes through the first mounting opening 102 and the first sliding groove 101 in sequence. The sliding groove 101 allows the first end of the rod 212 to extend out of the first sliding groove 101 after the first mounting opening 102 of the support rod 210 is inserted into the first sliding groove 101. A first limiting wall 104 is provided inside the first sliding groove 101. After the first mounting opening 102 of the support rod 210 is inserted into the first sliding groove 101, the first limiting wall 104 is located between the protrusion 211 and the first end of the rod 212. When the telescopic support leg 1a is extended to its longest state, the protrusion 211 abuts against the first limiting wall 104. The second positioning protrusion 211a is the protrusion 211.

[0193] The advantages of the above-mentioned design are that the protrusion 211 acts as a limit to prevent the support rod 210 from sliding out of the first sliding groove 101, so that the telescopic support leg 1a remains in place during use. In addition, the protrusion 211 also acts as a positioning element, making the structure of the telescopic support leg 1a more compact.

[0194] For example, the second positioning protrusion 211a may be a part of the protrusion 211.

[0195] Alternatively, the second positioning protrusion 211a may be the entirety of the protrusion 211.

[0196] For example, the support rod 210 is provided only with a second positioning protrusion 211a, and no protrusion 211 is provided.

[0197] For example, the second positioning protrusion 211a is located at one end or other part of the rod portion 212.

[0198] In some implementations of the embodiments of this utility model, reference is made to Figure 10 , Figure 33 , Figures 41-42 The second support member 200 is configured to support a support surface 1001 when the telescopic leg 1a is in the supported state. The first support member 100 has a second side 107b and a first side 107a opposite each other. When the telescopic leg 1a is in the supported state, the second side 107b is closer to the support surface 1001 relative to the first side 107a. The first mounting opening 102 is provided on the second side 107b of the first support member 100.

[0199] The advantages of the above-mentioned design are that, on the one hand, it makes the telescopic support leg 1a more aesthetically pleasing, and when the user uses the telescopic support leg 1a, it avoids the user from observing the support rod 210 extending or retracting within the first sliding groove 101 of the first support member 100. On the other hand, by placing the first mounting opening 102 on the second side 107b, the telescopic support leg 1a is made safer to use, and the user's hand is less likely to get caught when the telescopic support leg 1a extends or retracts.

[0200] It is understandable that when the telescopic leg 1a is in the supported state, the outer normal direction of the second side 107b points towards the support surface 1001, while the outer normal direction of the first side 107a is away from the support surface 1001.

[0201] For illustrative purposes only, when the telescopic leg 1a is in the supported state, the vertical line passing through the second side 107b also passes through the first side 107a.

[0202] Understandably, when the telescopic support leg 1a is in the supported state, the second side 107b is the lower side of the first support member 100, and the first side 107a is the upper side of the first support member 100.

[0203] In other examples, a first mounting opening 102 is provided on a first side 107a.

[0204] For example, when the telescopic outrigger 1a is in the supported state, the support rod 210 is directly supported on the support surface 1001.

[0205] For example, when the telescopic support leg 1a is in the supported state, the pad 220 is directly supported on the support surface 1001.

[0206] In some implementations of the embodiments of this utility model, reference is made to Figure 3 , Figure 42The support rod 210 has a first end and a second end; the first end of the support rod 210 can be inserted into the corresponding first sliding groove 101 through the corresponding first mounting opening 102, and when the telescopic support leg 1a is extended, the first end of the support rod 210 extends out from the first sliding groove 101.

[0207] This utility model embodiment also proposes a multi-legged bracket, see reference. Figure 1 , Figure 49 It includes a support rod 3 and at least three legs 1. The support rod 3 is used to support the electrical main body 2, and the at least three legs 1 are used to support the support rod 3; at least one of the at least three legs 1 is a telescopic leg 1a.

[0208] In the multi-leg bracket of this embodiment, one of the legs 1 is a telescopic leg 1a. When the multi-leg bracket is not in use, the support rod 210 can slide relative to the first support member 100, thereby shortening the length of the telescopic leg 1a and reducing the volume occupied by the multi-leg bracket. Furthermore, when the multi-leg bracket is in use, the length of the telescopic leg 1a is adjustable, allowing the multi-leg bracket to better adapt to uneven or inclined support surfaces 1001.

[0209] For example, support rod 3 is a rod of fixed length, or support rod 3 is a telescopic rod.

[0210] For example, when the telescopic leg 1a is suspended relative to the support surface 1001, the telescopic leg 1a can be adjusted to make it contact the support surface 1001.

[0211] For example, a multi-legged support can be a tripod, quadruped, pentagonal, or hexapod, meaning the number of legs 1 on the multi-legged support can be 3, 4, 5, 6, etc.

[0212] For example, the electrical device 2 can be a fan, lamp, mobile phone, tablet, etc. For example, the fan or lamp is fixed or movably installed on the support rod 3, and the mobile phone or tablet can be clamped by a clamp 5, which is fixed or movably installed on the support rod 3.

[0213] For example, the multi-leg bracket also includes a remote control 8, one of the legs 1 having a remote control mounting slot 1002, the mounting slot of the remote control 8 being adapted to the remote control 8, and the remote control 8 being embedded in the remote control mounting slot 1002. For example, one of the telescopic legs 1a has a remote control mounting slot 1002, and the first support member 100 of the telescopic leg 1a has a remote control mounting slot 1002.

[0214] For example, this utility model embodiment proposes a shooting bracket, including a shooting terminal 2 and a multi-leg bracket. The support rod 3 of the multi-leg bracket is used to support the shooting terminal 2, which can be a mobile phone, tablet, camera, etc.

[0215] For example, the shooting bracket also includes a clamp 5, which is installed on the support rod 3 and is used to hold shooting terminals 2 such as mobile phones and tablets (or the main power supply 2).

[0216] For example, the support rod 3 has a first mounting interface, which can be a threaded opening, a threaded post, a boot opening, a boot toe, etc. Correspondingly, the shooting terminal 2 (or the power-consuming body 2) has a second mounting interface, which can be a threaded post, a threaded opening, a boot toe, a boot opening, etc. The shooting terminal 2 (or the power-consuming body 2) is mounted on the support rod 3 through the cooperation of the first mounting interface and the second mounting structure.

[0217] For example, the shooting stand is used to support electronic terminals such as mobile phones, tablets, and cameras. When the multi-legged bracket is folded into the support rod 3, the shooting stand can be a handheld shooting stand. When the multi-legged bracket is open, the shooting stand can be a vehicle-mounted shooting stand, a desktop shooting stand, a ground shooting stand, etc.

[0218] For example, at least one support leg 1 is fixedly installed on the support rod 3. For instance, at least one telescopic support leg 1a is fixedly installed on the support rod 3. For example, the first support member 100 or the second support member 200 of the telescopic support leg 1a is fixedly installed on the support rod 3.

[0219] For example, at least three legs 1 are fixedly installed on the support rod 3, and at least three legs 1 can be opened radially relative to the support rod 3. For example, all legs 1 are telescopic legs 1a, at least three telescopic legs 1a are fixedly installed on the support rod 3, and at least three telescopic legs 1a can be opened radially relative to the support rod 3.

[0220] For example, the angle between at least one leg 1 and the support rod 3 is variable; specifically, at least one leg 1 is rotatable relative to the support rod 3; more specifically, at least one leg 1 is directly or indirectly rotatably connected to the support rod 3. In order for the leg 1 to function as a support, the leg 1 and the support rod 3 can be damped rotatably connected; or the support rod 3 is provided with a supporting portion, so that when the leg 1 is in the supported state, the leg 1 can abut against the supporting portion of the support rod 3.

[0221] For example, the angle between at least one telescopic leg 1a and the support rod 3 is variable. Specifically, at least one telescopic leg 1a is rotatable relative to the support rod 3. More specifically, at least one telescopic leg 1a is directly or indirectly rotatably connected to the support rod 3, for example, the first support member 100 or the second support member 200 of the telescopic leg 1a is directly or indirectly rotatably connected to the support rod 3.

[0222] For example, at least one leg 1 can be retracted or extended relative to the support rod 3.

[0223] For example, at least one telescopic leg 1a can be retracted or extended relative to the support rod 3. For example, after the second support member 200 of the telescopic leg 1a is retracted into the first support member 100 of the telescopic leg 1a, the telescopic leg 1a can be retracted into the support rod 3; or, for example, before the second support member 200 is retracted into the first support member 100, the telescopic leg 1a can be retracted into the support rod 3.

[0224] For example, at least three legs 1 are retractable or extendable relative to the support rod 3. When the at least three legs 1 support the support rod 3, the at least three legs 1 extend radially relative to the support rod 3; for example, at least three legs 1 are movably mounted on the support rod 3, and when the multi-leg bracket is not in use, the at least three legs 1 can be folded together or retracted into the support rod 3. For example, after the at least three legs 1 are retracted into the support rod 3 and the first support member 100 is retracted into the second support member 200, the at least three legs 1 can form a first columnar structure. The first columnar structure can be a cylinder, an elliptical cylinder, a prism, or a rounded prism.

[0225] For example, the first columnar structure can be held by the user so that the power-consuming body 2 can be used while holding it, such as taking a selfie while holding it.

[0226] For example, at least three legs 1 are telescopic legs 1a. After the at least three legs 1 are housed in the support rod 3 and the second support member 200 is housed in the first support member 100, the at least three telescopic legs 1a can form a first columnar structure. For example, the cross-section of the first support member 100 is arc-shaped or fan-shaped. When the at least three telescopic legs 1a are retracted, the first support member 100 of the at least three telescopic legs 1a retracts to form a first columnar structure in the shape of a cylinder.

[0227] For example, at least three legs 1 are telescopic legs 1a, and before the second support 200 is housed in the first support 100, at least three telescopic legs 1a can be housed in the support rod 3.

[0228] For example, the first columnar structure is a cylinder; the support rod 3 is a telescopic rod.

[0229] For example, at least three legs 1 can be of equal length, or at least two of the at least three legs 1 can be of equal length, or at least three legs 1 can be of unequal length between each pair of legs 1.

[0230] For example, at least three legs 1 can be opened at equal angles relative to the support rod 3, or at least two legs 1 can be opened at equal angles relative to the support rod 3, or the angles of any two legs 1 relative to the support rod 3 are not the same.

[0231] For example, if the support surface 1001 is a plane, when the multi-leg bracket is in the supported state, the support rod 3 is perpendicular to the support surface 1001, or the support rod 3 is not perpendicular to the support surface 1001.

[0232] For example, when the multi-legged support is in a supported state, the support rod 3 is along the vertical line, or the support rod 3 is inclined relative to the vertical line.

[0233] For example, at least one of the at least three legs 1 is a telescopic leg 1a, and the remaining legs 1 are fixed-length legs 1.

[0234] For example, at least two of the at least three legs 1 are telescopic legs 1a, and the remaining legs 1 are fixed-length legs 1.

[0235] For example, all three legs 1 are telescopic legs 1a.

[0236] For example, at least one of the at least three legs 1 is a fixed-length leg 1, and the remaining legs 1 are telescopic legs 1a.

[0237] For example, at least two of the at least three legs 1 are fixed-length legs 1, and the remaining legs 1 are telescopic legs 1a.

[0238] For example, the number of telescopic legs 1a is 1, 2, 3, 4, etc.

[0239] For example, the number of fixed-length legs 1 is 1, 2, 3, 4, etc.

[0240] For example, at least three of the legs 1 are telescopic legs 1a. The advantage of this arrangement is that the length of the telescopic legs 1a is adjustable when using the multi-leg bracket, thus changing the support surface area 1001 of the bracket. For instance, when the support rod 3 is long or the electrical unit 23 is heavy, the length of the telescopic legs 1a can be adjusted to increase the support surface area 1001 of the multi-leg bracket. This also allows the multi-leg bracket to adapt to inclined or uneven ground.

[0241] For example, at least three legs 1 are telescopic legs 1a. After at least three telescopic legs 1a change their length, the angle between the support rod 3 and the support surface 1001 remains unchanged (for example, the support rod 3 remains perpendicular to the support surface 1001, or remains non-perpendicular).

[0242] For example, at least three legs 1 are telescopic legs 1a. After at least three telescopic legs 1a change their length, the angle between the support rod 3 and the support surface 1001 changes.

[0243] For example, at least three legs 1 are telescopic legs 1a, and after at least three legs 1 change their length, the angle between the support rod 3 and the vertical line remains unchanged (for example, the support rod 3 is always along the vertical line, or has an angle with the plumb line).

[0244] For example, at least three legs 1 are telescopic legs 1a, and after at least three legs 1 change their length, the angle between the support rod 3 and the vertical line changes.

[0245] For example, the second support member 200 is sleeved on the first support member 100. The first support member 100 can completely wrap around the second support member 200, or the first support member 100 can partially wrap around the second support member 200.

[0246] For example, the second support member 200 is fully, partially, or partially enclosed by the first support member 100.

[0247] In some implementations of the embodiments of this utility model, reference is made to Figure 1 , Figure 33 , Figure 49 The multi-leg bracket also includes a first mounting part 6 and at least one first connecting rod 7, with each first connecting rod 7 corresponding to at least one telescopic leg 1a. The first mounting part 6 is slidably mounted on the support rod 3. One end of the first connecting rod 7 is rotatably connected to the first support member 100 of the telescopic leg 1a, and the other end is rotatably connected to the support rod 3. The first support member 100 of the telescopic leg 1a is rotatably connected to the first mounting part 6. When the first mounting part 6 slides along the support rod 3, the angle between the telescopic leg 1a and the support rod 3 changes.

[0248] It is understandable that the first mounting part 6, the first connecting rod 7, the support rod 3, and the first support member 100 form a slider connecting rod structure.

[0249] For example, the support rod 3 is fitted onto the first mounting part 6.

[0250] For example, the first mounting part 6 has a second columnar structure, and for example, the cross-section of the second columnar structure may be the same as that of the first columnar structure.

[0251] For example, the first mounting part 6 is circumferentially fixed relative to the support rod 3.

[0252] Understandably, the number of first links 7 is the same as the number of telescopic legs 1a.

[0253] In some implementations of the embodiments of this utility model, reference is made to Figure 22 , Figure 35 , Figure 40 , Figure 55The first support member 100 is provided with a first storage cavity 108, and the telescopic leg 1a can be stored in the support rod 3. When the first support member 100 of the telescopic leg 1a is stored in the support rod 3, the first connecting rod 7 is stored in the first storage cavity 108.

[0254] For example, the telescopic leg 1a can be stored in the support rod 3, meaning that after the second support member 200 is stored in the first support member 100, the telescopic leg 1a can be stored in the support rod 3.

[0255] For example, the telescopic leg 1a can be stored in the support rod 3. This means that the telescopic leg 1a can be stored in the support rod 3 at any length. For example, the telescopic leg 1a can be stored in the support rod 3 in its longest state.

[0256] For example, the first link 7 is housed in the first storage cavity 108. This can mean that a part of the first link 7 is housed in the first storage cavity 108, or that the main part of the first link 7 is housed in the first storage cavity 108, or that the entire first link 7 is housed in the first storage cavity 108.

[0257] For example, at least one leg 1 is a telescopic leg 1a, and each leg 1 is housed in the support rod 3. When each leg 1 is housed in the support rod 3, the multiple legs 1 can form a first columnar structure, and each leg 1 may participate in the formation of the first columnar structure in part or in whole.

[0258] For example, the outer surface of the first columnar structure is the first columnar surface, and each leg 1 partially or entirely participates in forming the first columnar surface, with adjacent sides of two adjacent legs 1 aligned.

[0259] For example, the support leg 1 has a first side 1003 and a second side 1004, which extend along the extension direction of the support leg 1, and any two adjacent support legs 1 are the first support leg 1 and the second support leg 1, respectively. When multiple support legs 1 are all housed in the support rod 3, the first side 1003 of the first support leg 1 is aligned with the second side 1004 of the second support leg 1.

[0260] Understandably, the alignment of the first side 1003 with the second side 1004 can mean that the first side 1003 and the second side 1004 are close to each other and located on the same analytical plane, for example, the first side 1003 and the second side 1004 are located on the same cylindrical plane (e.g., the first columnar plane).

[0261] For example, the first mounting part 6 has a second columnar structure, and the cross-section of the second columnar structure is adapted to the first columnar structure.

[0262] In some implementations of the embodiments of this utility model, reference is made to Figure 1-65At least three of the support legs 1 are telescopic support legs 1a. When at least three telescopic support legs 1a are all housed in the support rod 3, at least three telescopic support legs 1a form a first columnar structure.

[0263] For example, at least three telescopic legs 1a form a first columnar structure, with each telescopic leg 1a contributing part or all of its contribution to the first columnar structure.

[0264] For example, the first columnar structure can be a cylinder, a polygonal column, an elliptical column, etc.

[0265] For example, the outer surface of the first columnar structure is the first columnar surface, and each telescopic leg 1a is partially or entirely involved in forming the first columnar surface, with the adjacent outer edges of two adjacent telescopic legs 1a aligned.

[0266] For example, the first mounting part 6 has a second columnar structure, and the cross-section of the second columnar structure is adapted to the first columnar structure.

[0267] In some implementations of the embodiments of this utility model, reference is made to Figure 33 , Figure 39 , Figure 49 At least three support legs 1 are telescopic support legs 1a, each telescopic support leg 1a having a first side 1003 and a second side 1004, the first side 1003 and the second side 1004 being located on opposite sides of the telescopic support leg 1a; any two adjacent telescopic support legs 1a are the first telescopic support leg 1a and the second telescopic support leg 1a, respectively; when at least three telescopic support legs 1a are all retracted into the support rod 3, the first side 1003 of the first telescopic support leg 1a is aligned with the second side 1004 of the second telescopic support leg 1a.

[0268] For example, the first side 1003 extends along the direction of extension of the telescopic leg 1a, and the second side 1004 extends along the direction of extension of the telescopic leg 1a.

[0269] For example, the first side 1003 and the second side 1004 are located on opposite sides of the first support member 100.

[0270] Understandably, the alignment of the first side 1003 with the second side 1004 can mean that the first side 1003 and the second side 1004 are close to each other and located on the same analytical plane. For example, the first side 1003 and the second side 1004 are located on the same cylindrical plane (e.g., the first cylindrical plane). This analytical plane can also be a plane.

[0271] In some implementations of the embodiments of this utility model, reference is made to Figure 10 , Figure 33 , Figures 41-42The second support member 200 is configured to support a support surface 1001 when the telescopic leg 1a is in the supported state. When the telescopic leg 1a is in the supported state, the first support member 100 has a second side 107b and a first side 107a opposite each other. When the telescopic leg 1a is in the supported state, the second side 107b is closer to the support surface 1001 relative to the first side 107a. The first mounting opening 102 is provided on the second side 107b of the first support member 100. The telescopic leg 1a can be stored in the support rod 3. When the telescopic leg 1a is stored in the support rod 3, the second side 107b is closer to the support rod 3 relative to the first side 107a.

[0272] The advantage of this design is that when the multi-leg bracket is in its stowed or supported state, the telescopic leg 1a extends and retracts more safely, preventing the user's hand from being scratched during the extension and retraction process.

[0273] Reference Figure 6 , Figures 46-48 , Figures 58-60 This utility model embodiment also proposes a telescopic support leg 1a, which serves as one of the supports 1 of a multi-leg bracket. The telescopic support leg 1a includes a first support member 100 and a second support member 200. The first support member 100 is provided with at least one first sliding groove 101, and the second support member 200 includes at least one support rod 210. The at least one support rod 210 corresponds to at least one first sliding groove 101, and the support rod 210 is slidably installed in the corresponding first sliding groove 101 to change the length of the telescopic support leg 1a. When the telescopic support leg 1a is in a supported state, the support rod 210 can be positioned... The first support member 100; the support rod 210 includes a rod portion 212 and a protrusion 211, the protrusion 211 protruding from the rod portion 212; the rod portion 212 has a first end, the first end of the rod portion 212 can extend out from the first sliding groove 101, the first sliding groove 101 is provided with a first limiting wall 104, the first limiting wall 104 is located between the protrusion 211 and the first end of the rod portion 212, when the telescopic support leg 1a is extended to its longest state, the protrusion 211 abuts against the first limiting wall 104, and during the extension of the telescopic support leg 1a, the first end of the rod portion 212 gradually moves away from the first support member 100.

[0274] The advantage of this design is that when the multi-leg bracket is not in use, the support rod 210 can slide relative to the first sliding groove 101, shortening the length of the telescopic leg 1a and thus reducing its volume. Furthermore, the support rod 210 has a protrusion 211, and the first sliding groove 101 has a first limiting wall 104. When the telescopic leg 1a is extended to its longest position, the protrusion 211 abuts against the first limiting wall 104, preventing excessive stretching of the telescopic leg 1a during extension and ensuring its integrity during use.

[0275] For example, when the telescopic outrigger 1a is in the supported state, the outrigger 210 is in direct or indirect contact with a support surface 1001.

[0276] For example, the sliding engagement between the rod portion 212 and the first sliding groove 101 enables the support rod 210 to be slidably installed in the first sliding groove 101.

[0277] For example, the sliding engagement between the protrusion 211 and the first sliding groove 101 enables the support rod 210 to be slidably installed in the first sliding groove 101.

[0278] For example, both the rod portion 212 and the protrusion 211 are slidably engaged with the first sliding groove 101 so that the support rod 210 is slidably installed in the first sliding groove 101.

[0279] For example, the protrusion 211 is non-removably provided on the rod portion 212, for example, the protrusion 211 is integrally provided on the rod portion 212.

[0280] For example, the protrusion 211 is detachably provided on the rod portion 212.

[0281] For example, the protrusion 211 is located at one end of the rod 212, or the protrusion 211 is located at other parts of the rod 212.

[0282] In some implementations of the embodiments of this utility model, reference is made to Figure 12 , Figure 46 , Figures 58-60 The first sliding groove 101 includes a first sliding sub-groove 101a and a second sliding sub-groove 101b. The first sliding sub-groove 101a is connected to the second sliding sub-groove 101b. The first sliding sub-groove 101a is adapted to the protrusion 211 of the support rod 210, and the second sliding sub-groove 101b is adapted to the rod portion 212 of the support rod 210.

[0283] The advantage of setting the first sliding sub-groove 101a and the second sliding sub-groove 101b is that it makes the support rod 210 slide more smoothly in the first sliding groove 101.

[0284] In other examples, the first sliding groove 101 includes only the first sliding sub-groove 101a.

[0285] In other examples, the first sliding groove 101 includes only the second sliding sub-groove 101b.

[0286] In some implementations of this utility model, the first limiting wall 104 is located in the first sliding sub-groove 101a.

[0287] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 48 , Figure 59The first limiting wall 104 is located at the junction of the first sliding sub-groove 101a and the second sliding sub-groove 101b.

[0288] For example, the transition between the first sliding sub-groove 101a and the second sliding sub-groove 101b is a stepped structure, and the first limiting wall 104 is part of this stepped structure.

[0289] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 48 , Figure 59 The first sliding sub-slot 101a has a first projection plane perpendicular to the extension direction of the first sliding groove 101, and the projection of the first sliding sub-slot 101a onto the first projection plane encompasses the projection of the second sliding sub-slot 101b onto the first projection plane.

[0290] In some implementations of this utility model, the first limiting wall 104 is a curved surface or a plane.

[0291] For example, the first limiting wall 104 can be a convex surface or a concave surface.

[0292] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 48 , Figure 59 The first limiting wall 104 is a plane and is perpendicular to the extension direction of the first sliding groove 101.

[0293] In other examples, the first limiting wall 104 is a plane and is not perpendicular to the extension direction of the first sliding groove 101.

[0294] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 46 The first support member 100 has a first positioning protrusion 110, and the support rod 210 has a second positioning protrusion 211a. When the support rod 210 slides relative to the first sliding groove 101, the second positioning protrusion 211a can abut against or slide past the first positioning protrusion 110. When the second positioning protrusion 211a abuts against the first positioning protrusion 110, the support rod 210 can be positioned on the second support member 200 when the telescopic support leg 1a is in the supported state.

[0295] In some implementations of this utility model, the second positioning protrusion 211a is a protrusion 211.

[0296] For example, the second positioning protrusion 211a is part or all of the protrusion 211.

[0297] In some implementations of the embodiments of this utility model, reference is made to Figure 3 , Figure 43 , Figure 58There are two support rods 210 and two first sliding grooves 101, which are located on opposite sides of the first support member 100.

[0298] In some implementations of the embodiments of this utility model, reference is made to Figure 22 , Figure 38 When the telescopic support leg 1a is in the supported state, the second support member 200 is supported on a support surface 1001.

[0299] Reference Figures 1-48 This utility model embodiment also proposes a telescopic support leg 1a, which serves as one of the support legs 1 of a multi-leg bracket. The telescopic support leg 1a includes a first support member 100 and a second support member 200. The first support member 100 is provided with at least one first sliding groove 101 and at least one first mounting opening 102. The at least one first mounting opening 102 corresponds to at least one first sliding groove 101 and communicates with the corresponding first sliding groove 101. The second support member 200 includes at least one support rod 210 and a pad 220. The rod 210 corresponds to at least one first sliding groove 101. The first end of the rod 210 can be inserted into the corresponding first sliding groove 101 through the corresponding first mounting opening 102 so that the rod 210 can be slidably installed in the first sliding groove 101. The rod 210 is slidably installed in the corresponding first sliding groove 101 to change the length of the telescopic support leg 1a. The first end of the rod 210 can extend out from the first sliding groove 101 so that the rod 210 is screwed into the pad 220. During the extension of the telescopic support leg 1a, the first end of the rod 210 gradually moves away from the first support member 100. The support rod 210 is provided with a first adjustment part 211b, which is configured to cooperate with an adjustment member. The adjustment member has a second adjustment part adapted to the first adjustment part 211b. The adjustment member can cooperate with the adjustment part through the first mounting opening 102 and rotate. When the adjustment member rotates, it can drive the support rod 210 to rotate so that the support rod 210 is fastened or loosened with the pad 220. When the telescopic support leg 1a is in the supported state, the pad 220 is supported on a support surface 1001, and the support rod 210 can be positioned on the first support member 100.

[0300] The advantage of the above configuration is that when the multi-leg bracket is not in use, the support rod 210 can slide relative to the first sliding groove 101, which shortens the length of the telescopic leg 1a and thus reduces its volume. Furthermore, the support rod 210 is screwed into the foot pad 220, and the support rod 210 is provided with a first adjustment part 211b, allowing for easy installation of the support rod 210 onto the foot pad 220 via an adjustment element.

[0301] It is understood that the first mounting opening 102 can be any shape that facilitates insertion into the first sliding groove 101.

[0302] For example, the screw-in connection can be a threaded connection or a non-threaded connection. For instance, the rod portion 212 has a protrusion, and the foot 220 has a mounting hole adapted to the rod portion 212. The wall of the mounting hole has a non-spiral groove, and the protrusion adapts to the groove. Rotating the rod portion 212 allows it to screw into the foot 220. The protrusion and the groove can be in line contact or point contact.

[0303] For example, the rod 212 is provided with a mounting hole, the wall of which is provided with a non-spiral groove, and the foot 220 is provided with a mounting post that matches the mounting hole. The mounting post is provided with a protrusion that is adapted to the direction of the groove, and the mounting post can be screwed into the groove.

[0304] In some implementations of the embodiments of this utility model, reference is made to Figure 6 or Figure 46 The first adjustment part 211b is the first adjustment groove 211b, and the second adjustment part is the second adjustment protrusion.

[0305] For example, the first adjustment groove 211b can be a groove with a constant cross-section, or the first adjustment groove 211b can be a protrusion with a variable cross-section.

[0306] For example, the second adjusting protrusion can be a protrusion with a constant cross-section or a protrusion with a variable cross-section.

[0307] For example, the first adjusting groove 211b can be a columnar groove, a truncated groove, a conical groove, etc., and the second adjusting protrusion can be a columnar protrusion, a truncated protrusion, or a conical protrusion.

[0308] For example, the first adjusting groove 211b is a plum blossom groove, and the second adjusting protrusion is a plum blossom protrusion.

[0309] For example, the first adjustment groove 211b is a slot, and the second adjustment protrusion is a protrusion.

[0310] For example, the first adjustment groove 211b is a cross groove, and the second adjustment protrusion is a cross protrusion;

[0311] For example, the first adjustment groove 211b is a polygonal groove, and the second adjustment protrusion is a polygonal protrusion;

[0312] For example, the first adjusting groove 211b is a semi-circular groove, and the second adjusting protrusion is a semi-circular protrusion;

[0313] For example, the first adjustment groove 211b is an elliptical groove, and the second adjustment protrusion is an elliptical protrusion.

[0314] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 46Alternatively, the first adjusting groove 211b is a columnar groove and the second adjusting protrusion is a columnar protrusion; or, the first adjusting groove 211b is a platform-shaped groove and the second adjusting protrusion is a platform-shaped protrusion; or, the first adjusting groove 211b is a conical groove and the second adjusting protrusion is a conical protrusion.

[0315] It is understood that the second adjustment protrusion can be inserted into the first adjustment groove 211b along the first insertion direction, and the cross-section of the first adjustment groove 211b along the first insertion direction remains unchanged or changes, and the cross-section of the second adjustment protrusion along the first insertion direction remains unchanged or changes.

[0316] In some implementations of this utility model, the first adjustment part 211b is a first adjustment protrusion 211b, and the second adjustment part is a second adjustment groove.

[0317] For example, the first adjusting protrusion 211b can be a protrusion with a constant cross-section or a protrusion with a variable cross-section.

[0318] For example, the second adjustment groove can be a protrusion with a constant cross-section, or it can be a protrusion with a variable cross-section.

[0319] In some implementations of this utility model, the first adjusting protrusion 211b is a plum blossom protrusion and the second adjusting groove is a plum blossom groove; or, the first adjusting protrusion 211b is a straight protrusion and the second adjusting groove is a straight groove; or, the first adjusting protrusion 211b is a cross protrusion and the second adjusting groove is a cross groove; or, the first adjusting protrusion 211b is a polygonal protrusion and the second adjusting groove is a polygonal groove; or, the first adjusting protrusion 211b is a semi-circular protrusion and the second adjusting groove is a semi-circular groove; or, the first adjusting protrusion 211b is an elliptical protrusion and the second adjusting groove is an elliptical groove.

[0320] In some implementations of this utility model, the first adjusting protrusion 211b is a columnar protrusion and the second adjusting groove is a columnar groove; or, the first adjusting protrusion 211b is a platform-shaped protrusion and the second adjusting groove is a platform-shaped groove; or, the first adjusting protrusion 211b is a conical protrusion and the second adjusting groove is a conical groove.

[0321] It is understood that the first adjustment protrusion 211b can be inserted into the second adjustment groove along the second insertion direction, the first insertion direction being the opposite of the second insertion direction. The cross-section of the first adjustment protrusion 211b may change or remain unchanged along the second insertion direction, and the cross-section of the second adjustment groove may change or remain unchanged along the second insertion direction.

[0322] In some implementations of the embodiments of this utility model, reference is made to Figure 14 The foot 220 is provided with a first threaded hole 203, and the support rod 210 is provided with an external thread 215 at one end near the foot 220. The external thread 215 is engaged with the first threaded hole 203.

[0323] Other examples, see [reference] Figure 15 The first pad 220 is provided with a first threaded post 225, and the support rod 210 is provided with a second threaded hole 204. The first threaded post 225 and the second threaded hole 204 are engaged.

[0324] Understandably, the support rod 210 can be screwed into the first threaded hole 203, or the first threaded post 225 can be screwed into the second threaded hole 204.

[0325] In some implementations of the embodiments of this utility model, reference is made to Figure 4 , Figure 5 The first support member 100 is provided with a first engaging portion 120, and the foot 220 is provided with a second engaging portion 223. When the telescopic foot 1a is retracted to its shortest state, the first engaging portion 120 engages with the second engaging portion 223. The first support member 100 has a first approach edge 106a, and the foot 220 has a second approach edge 202a. When the telescopic foot 1a is retracted to its shortest state, the first approach edge 106a and the second approach edge 202a are aligned. The alignment of the first approach edge 106a and the second approach edge 202a can mean that the first approach edge 106a is close to each other and located on the same analytical plane, for example, the first approach edge 106a and the second approach edge 202a are located on the same plane or the same cylindrical surface, etc.

[0326] Other examples, see [reference] Figure 33 , Figure 39 , Figure 49 The first support member 100 has a first outer surface 106, and the foot 220 has a second outer surface 202. When the telescopic foot 1a is extended to its shortest state, the first outer surface 106 and the second outer surface 202 are aligned. The first outer surface 106 and the second outer surface 202 are close to each other and located on the same plane, for example, the first outer surface 106 and the second outer surface 202 are located on the same plane or the same cylindrical surface.

[0327] For example, the first outer side 106 of the first support member 100 is located on the first side 107a of the first support member.

[0328] For example, the first outer surface 106 is the first surface 107a.

[0329] For example, the first outer surface 106 partially overlaps with the first outer surface 107a.

[0330] Other examples, see [reference] Figure 33 , Figure 39 , Figure 49The first support member 100 has a first end face 109, and the foot 220 has a second end face 205. The first end face 109 and the second end face 205 are adapted to each other. When the telescopic foot 1a is extended to its shortest state, the first end face 109 and the second end face 205 are in contact or close together. It can be understood that the adaptation of the first end face 109 and the second end face 205 means that the first end face 109 and the second end face 205 have the same shape and are opposite to each other.

[0331] Understandably, the second limiting wall 201 is located on the second end face 205 of the foot 220.

[0332] In some implementations of the embodiments of this utility model, reference is made to Figures 1-48 The support rod 210 includes a rod portion 212 and a protrusion 211. The protrusion 211 protrudes from the rod portion 212, and the rod portion 212 is screwed into the pad foot 220. A first adjustment portion 211b is provided on the protrusion 211. A first limiting wall 104 is provided in the first sliding groove 101. The protrusion 211 is configured to abut against the first limiting wall 104 when the telescopic support foot 1a is extended to its longest state. The first support member 100 has a first positioning protrusion 110. When the support rod 210 slides relative to the first sliding groove 101, the protrusion 211 abuts against or slides past the first positioning protrusion 110. The abutment between the protrusion 211 and the first positioning protrusion 110 can position the support rod 210 on the first support member 100 when the telescopic support foot 1a is in the supported state.

[0333] In some implementations of this utility model, the first support member 100 has a second side 107b and a first side 107a opposite to each other. When the telescopic support leg 1a is in a supported state, the second side 107b is closer to the support surface 1001 relative to the first side 107a. The first mounting opening 102 is provided on the second side 107b of the first support member 100.

[0334] Reference Figure 1-48This utility model embodiment also proposes a telescopic support leg 1a, which serves as one of the supports 1 of a multi-leg bracket. The telescopic support leg 1a includes a first support member 100 and a second support member 200. The first support member 100 is provided with at least one first sliding groove 101, and the second support member 200 includes at least one support rod 210. The at least one support rod 210 corresponds to at least one first sliding groove 101, and the support rod 210 is slidably installed in the corresponding first sliding groove 101 to change the length of the telescopic support leg 1a. The support rod 210 includes a rod portion 212 and a second positioning protrusion 211a, the second positioning protrusion 211a protruding from the rod portion 212; the first support member 100 has a first positioning protrusion 110, when the support rod 210 slides relative to the first sliding groove 101, the second positioning protrusion 211a can abut against or slide past the first positioning protrusion 110, when the telescopic support leg 1a is in the supported state, the second positioning protrusion 211a abuts against the first positioning protrusion 110 so that the support rod 210 is positioned on the second support member 200.

[0335] The advantage of this design is that when the multi-leg bracket is not used, the support rod 210 can slide relative to the first sliding groove 101, shortening the length of the telescopic leg 1a and thus reducing its volume. The first support member 100 has a first positioning protrusion 110, and the support rod 210 has a second positioning protrusion 211a. When the second positioning protrusion 211a abuts against the first positioning protrusion 110, it provides a supporting force for the support rod 210 to abut against the first support member 100, allowing the support rod 210 to be positioned against the first support member 100 in the supported state. Furthermore, the second positioning protrusion 211a can slide past the first positioning protrusion 110 without affecting the extension and retraction of the telescopic leg 1a.

[0336] For example, the second positioning protrusion 211a sliding over the first positioning protrusion 110 can mean that when the telescopic leg 1a is in a supported state and the second positioning protrusion 211a is abutting against the first positioning protrusion 110, when the pressure on the telescopic leg 1a is large enough, the second positioning protrusion 211a slides over the first positioning protrusion 110, so that the support rod 210 can be stored in the first support member 100.

[0337] For example, the second positioning protrusion 211a sliding past the first positioning protrusion 110 can also refer to the following: when the telescopic leg 1a is in its shortest state (or other states), the first positioning protrusion 110 and the second positioning protrusion 211a do not abut against each other. When the tension on the telescopic leg 1a is large enough, the support rod 210 extends relative to the first support member 100, and the second positioning protrusion 211a slides past the first positioning protrusion 110. After the second positioning protrusion 211a slides past the first positioning protrusion 110, the second positioning protrusion 211a can abut against the first positioning protrusion 110 to achieve the support rod 210 being positioned on the first support member 100 in the supported state.

[0338] Understandably, the abutment between the second positioning protrusion 211a and the first positioning protrusion 110 allows the telescopic leg 1a to position the support rod 210 against the first support member 100 at a specific length.

[0339] For example, during the process of the second positioning protrusion 211a sliding past the first positioning protrusion 110, the second positioning protrusion 211a deforms, and / or the first positioning protrusion 110 deforms, thereby allowing the second positioning protrusion 211a to slide past the first positioning protrusion 110. The deformation of the second positioning protrusion 211a can refer to the deformation of the second positioning protrusion 211a itself, or the deformation of the component supporting the second positioning protrusion 211a; the deformation of the first positioning protrusion 110 can refer to the deformation of the first positioning protrusion 110 itself, or the deformation of the component supporting the first positioning protrusion 110.

[0340] For example, the first positioning protrusion 110 has two opposing first sidewalls 111. The distance between the two first sidewalls 111 narrows from the bottom end to the top end of the first positioning protrusion 110. The second positioning protrusion 211a can abut against the first sidewalls 111. During the process of the second positioning protrusion 211a sliding past the first positioning protrusion 110, the second positioning protrusion 211a slides into contact with the first sidewalls 111 and slides into contact with the top end of the first positioning protrusion 110. The advantage of this arrangement is that during the process of the second positioning protrusion 211a sliding past the first positioning protrusion 110, wear on the second positioning protrusion 211a and the first positioning protrusion 110 is less likely to occur.

[0341] For example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are gradually transitioned, for example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are smoothly curved, or for example, the top of the first sidewall 111 and the top of the first positioning protrusion 110 are inclined.

[0342] It is understandable that when the second positioning protrusion 211a abuts against the first positioning protrusion 110, the second positioning protrusion 211a abuts against one of the first sidewalls 111 of the first positioning protrusion 110.

[0343] For example, the second positioning protrusion 211a is a protrusion 211.

[0344] For example, the second positioning protrusion 211a has two opposing second sidewalls, from the bottom end of the second positioning protrusion 211a to its top end, and the distance between the two second sidewalls narrows. During the process of the second positioning protrusion 211a sliding past the first positioning protrusion 110, the first positioning protrusion 110 slides into contact with the second sidewall of the second positioning protrusion 211a, and the first positioning protrusion 110 slides into contact with the top end of the second positioning protrusion 211a.

[0345] For example, the second sidewall and the top of the second positioning protrusion 211a are gradually transitioned, for example, the second sidewall and the top of the second positioning protrusion 211a are smoothly curved, or for example, the second sidewall and the top of the second positioning protrusion 211a are inclined.

[0346] In some implementations of this utility model, when the telescopic support leg 1a is in a supported state, the second support member 200 is supported on a support surface 1001.

[0347] For example, the support surface 1001 can be a plane, a curved surface, etc.

[0348] For example, the support surface 1001 can be a desktop, the ground, etc.

[0349] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 46 The first positioning protrusion 110 has two opposing first sidewalls 111, from the bottom end of the first positioning protrusion 110 to its top end, and the distance between the two first sidewalls 111 is narrowed.

[0350] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 46 The top of the first sidewall 111 and the first positioning protrusion 110 are gradually transitioned.

[0351] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 46 The first support member 100 has at least one first clearance space 1010, and the first clearance space 1010 corresponds to at least one first sliding groove 101. The first clearance space 1010 is configured to serve as the deformation space of the support rod 210 when the second positioning protrusion 211a slides past the first positioning protrusion 110.

[0352] Understandably, when the second positioning protrusion 211a slides past the first positioning protrusion 110, the support rod 210 undergoes a slight deformation.

[0353] For example, the first clearance space 1010 may be the first mounting opening 102.

[0354] In some implementations of the embodiments of this utility model, reference is made to Figures 46-48The first sliding groove 101 includes a second sliding sub-groove 101b, which is adapted to the rod portion 212 of the support rod 210; the second sliding sub-groove 101b surrounds the rod portion 212; the first cross section is perpendicular to the telescopic leg 1a's telescopic direction, the first clearance space 1010 and the second sliding sub-groove 101b are respectively located on opposite sides of the first cross section, the first clearance space 1010 extends to the first cross section, and the second sliding sub-groove 101b extends to the first cross section; the second cross section is perpendicular to the telescopic leg 1a's telescopic direction, the second positioning protrusion 211a and the second sliding sub-groove 101b are respectively located on opposite sides of the second cross section, the second positioning protrusion 211a... The first positioning protrusion 211a extends to the second cross section; the rod portion 212 has a bending thickness along the thickness direction of the first positioning protrusion 110, the maximum thickness of the first positioning protrusion 110 is 5%-15% of the bending thickness of the rod portion 212, and when the second positioning protrusion 211a slides past the first positioning protrusion 110, the distance from the first cross section to the second cross section is greater than or equal to one time the bending thickness of the rod portion 212; or, the maximum thickness of the first positioning protrusion 110 is 5%-15% of the average diameter of the rod portion 212, and when the second positioning protrusion 211a slides past the first positioning protrusion 110, the distance from the first cross section to the second cross section is greater than or equal to one time the average diameter of the rod portion 212.

[0355] The advantage of the above configuration is that when the second positioning protrusion 211a slides past the first positioning protrusion 110, it facilitates the bending deformation of the support rod 210.

[0356] It is understandable that the degree of bending of the support rod 210 is related to the thickness of the first positioning protrusion 110. The thicker the first positioning protrusion 110, the greater the degree of bending of the support rod 210.

[0357] Understandably, the ease of bending the support rod 210 is related to the thickness of the first positioning protrusion 110 and the exposed length of the rod portion 212.

[0358] Understandably, the extension of the first clearance space 1010 to the first cross section means that one end (or edge) of the first clearance space 1010 is in contact with the first cross section, and the first clearance space 1010 is located on one side of the first cross section.

[0359] Understandably, the second positioning protrusion 211a extending to the second cross section means that one end (or edge) of the second positioning protrusion 211a is in contact with the second cross section, and the second positioning protrusion 211a is located on one side of the second cross section.

[0360] Understandably, the distance between the first section and the second section when the second positioning protrusion 211a slides past the first positioning protrusion 110 is used to characterize the length of the rod 212 exposed relative to the second sliding sub-groove 101b and which acts as a bending element.

[0361] Understandably, the bending thickness of the rod 212 is the thickness in the thickness direction of the first positioning protrusion 110.

[0362] For example, the maximum thickness of the first positioning protrusion 110 is 5%, 8%, 10%, 12%, 15%, etc., of the bending thickness (or average diameter) of the rod portion 212.

[0363] Understandably, the average diameter d of the rod 212 is 2*sqrt(S / π).

[0364] Understandably, the maximum thickness of the first positioning protrusion 110 is the maximum distance from the outer wall of the first positioning protrusion 110 to the inner wall of the first sliding groove 101.

[0365] Understandably, when the rod 212 is cylindrical, the bending thickness of the rod 212 is its diameter; when the rod 212 is sheet-like, and the thickness direction of the rod 212 is consistent with the thickness direction of the first positioning protrusion 110, the bending thickness of the rod 212 is its own thickness; when the rod 212 is of arbitrary shape, the bending thickness of the rod 212 should be understood as the thickness along the thickness direction of the first positioning protrusion 110.

[0366] For example, the distance from the second section to the first section is greater than or equal to 1-2 times the bending thickness (or average diameter) of the rod 212.

[0367] For example, the first sliding groove 101 includes only the second sliding sub-groove 101b, and the first support member 100 is also provided with space for the second positioning protrusion 211a (or protrusion 211) to slide.

[0368] In some implementations of the embodiments of this utility model, reference is made to Figures 46-48 The maximum thickness of the first positioning protrusion 110 is 5%, 8%, 10%, 12%, or 15% of the bending thickness (or average diameter) of the rod portion 212.

[0369] When the second positioning protrusion 211a slides past the first positioning protrusion 110, the distance from the second section to the first section is greater than or equal to twice the bending thickness (or average diameter) of the rod 212.

[0370] For example, when the second positioning protrusion 211a slides past the first positioning protrusion 110, the distance from the second section to the first section is 1, 1.2, 1.5, 1.7, 2, 3, 5, 10 times, etc., the bending thickness (or average diameter) of the rod 212.

[0371] In some implementations of the embodiments of this utility model, reference is made to Figures 46-48The second sliding sub-groove 101b is adapted to the rod portion 212 of the support rod 210; the second sliding sub-groove 101b surrounds the rod portion 212; the first cross-section is perpendicular to the telescopic leg 1a's telescopic direction, the first clearance space 1010 and the second sliding sub-groove 101b are located on opposite sides of the first cross-section, the first clearance space 1010 extends to the first cross-section, and the second sliding sub-groove 101b extends to the first cross-section; a third cross-section is perpendicular to the telescopic leg 1a's telescopic direction, and the first positioning protrusion 110 extends to the third cross-section. The second sliding sub-groove 101b is located on opposite sides of the third section; the maximum thickness of the first positioning protrusion 110 is 5%-15% of the average diameter of the rod 212, and the distance from the first section to the third section is greater than or equal to one times the average diameter of the rod 212; or, the rod 212 has a bent thickness along the thickness direction of the first positioning protrusion 110, the maximum thickness of the first positioning protrusion 110 is 5%-15% of the bent thickness of the rod 212, and the distance from the first section to the third section is greater than or equal to one times the bent thickness of the rod 212.

[0372] It is understandable that the space between the first cross section and the first positioning protrusion 110 is a transition space connecting the first sliding sub-groove 101a and the second sliding sub-groove 101b.

[0373] When the rod 212 is a cylinder, the bending thickness of the rod 212 is its diameter.

[0374] When the rod 212 is sheet-shaped, and the thickness direction of the rod 212 is consistent with the thickness direction of the first positioning protrusion 110, the bending thickness of the rod 212 is its own thickness.

[0375] When the rod 212 is of any shape, the bending thickness of the rod 212 should be understood as the thickness along the thickness direction of the first positioning protrusion 110.

[0376] Understandably, the distance from the third section to the first section is used to characterize the distance between the first positioning protrusion 110 and the end of the second sliding sub-groove 101b. The greater the distance from the third section to the first section, the longer the exposed working length of the rod 212, and the easier it is for the rod 212 to bend.

[0377] For example, the maximum thickness of the first positioning protrusion 110 is 5%, 8%, 10%, 12%, or 15% of the bending thickness (or average diameter) of the rod portion 212.

[0378] For example, the distance from the first section to the third section is greater than or equal to 1 to 2 times the bending thickness (or average diameter) of the rod 212.

[0379] For example, the distance from the first section to the third section is greater than or equal to twice the bending thickness (or average diameter) of the rod 212.

[0380] For example, the distance from the third section to the first section is 1, 1.2, 1.5, 1.7, 2, 3, 5, 10 times, etc., the bending thickness (or average diameter) of the rod 212.

[0381] In some implementations of the embodiments of this utility model, reference is made to Figures 46-48 The maximum thickness of the first positioning protrusion 110 is 5%, 8%, 10%, 12%, or 15% of the bending thickness of the rod 212; the distance from the third section to the first section is greater than or equal to twice the bending thickness of the rod 212.

[0382] In some implementations of the embodiments of this utility model, reference is made to Figures 46-48 The second sliding sub-groove 101b is adapted to the rod portion 212 of the support rod 210; the second sliding sub-groove 101b surrounds the rod portion 212; the first cross section is perpendicular to the telescopic support leg 1a's telescopic direction, the first clearance space 1010 and the second sliding sub-groove 101b are respectively located on opposite sides of the first cross section, the first clearance space 1010 extends to the first cross section, and the second sliding sub-groove 101b extends to the first cross section; a third cross section is perpendicular to the telescopic support leg 1a's telescopic direction, the first positioning protrusion 110 extends to the third cross section, the first positioning protrusion 110 and the second sliding sub-groove 101b are respectively located on opposite sides of the third cross section; the maximum thickness of the first positioning protrusion 110 is 5%-15% of the average diameter of the rod portion 212, and the distance from the first cross section to the third cross section is greater than or equal to one times the average diameter of the rod portion 212.

[0383] In some implementations of this utility model, the maximum thickness of the first positioning protrusion 110 is 5%, 8%, 10%, 12%, or 15% of the average diameter of the rod portion 212.

[0384] For example, the distance from the first section to the third section is greater than or equal to twice the average diameter of the rod 212.

[0385] For example, the rod 212 is cylindrical, and the average diameter of the rod 212 is the diameter of the rod 212.

[0386] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 46 The first sliding groove 101 is provided with a first limiting wall 104, which is located outside the second sliding sub-groove 101b. The first limiting wall 104 is configured to abut against the second positioning protrusion 211a when the telescopic support leg 1a is at its longest. Between the first limiting wall 104 and the first positioning protrusion 110 is a holding space 105 adapted to the second positioning protrusion 211a, which is used to hold the second positioning protrusion 211a.

[0387] The advantage of this design is that when the second positioning protrusion 211a slides past the first positioning protrusion 110, it is precisely engaged in the holding space 105, which prevents the support rod 210 from becoming loose or sliding relative to the first support member 100 when the user lifts the multi-leg bracket in the supported state.

[0388] Understandably, the width of the holding space 105 is adapted to the second positioning protrusion 211a.

[0389] In some implementations of the embodiments of this utility model, reference is made to Figures 46-48 The first sliding groove 101 is provided with a first protrusion 150. One end of the first protrusion 150 is provided with a first limiting wall 104, and the other end extends to one end of the second sliding sub-groove 101b. The first limiting wall 104 is a plane and is perpendicular to the extension direction of the first sliding groove 101.

[0390] The advantage of this design is that by placing the first limiting wall 104 on the first protrusion 150 and extending the first protrusion 150 to the second sliding sub-groove 101b, the second positioning protrusion 211a is less likely to slip past the first limiting wall 104. This further prevents the support rod 210 from becoming loose or sliding relative to the first support member 100 when the user lifts the multi-leg bracket in the supported state.

[0391] In other examples, the first limiting wall 104 is not perpendicular to the extending direction of the first sliding groove 101.

[0392] In some implementations of the embodiments of this utility model, reference is made to Figure 6 , Figure 48 The first sliding groove 101 is provided with a first limiting wall 104, which is configured to abut against the second positioning protrusion 211a when the telescopic support leg 1a is at its longest. Between the first limiting wall 104 and the first positioning protrusion 110 is a holding space 105 adapted to the second positioning protrusion 211a, which is used to hold the second positioning protrusion 211a.

[0393] The advantage of this design is that when the telescopic leg 1a is at its longest, it is exactly located in the holding space 105, thus preventing the telescopic leg 1a from sliding when it is lifted.

[0394] In some implementations of the embodiments of this utility model, reference is made to Figures 46-48The first sliding groove includes a second sliding sub-groove, which is adapted to the rod portion of the support rod. The second sliding sub-groove surrounds the rod portion. The first cross-section is perpendicular to the telescopic direction of the telescopic support leg. The first clearance space and the second sliding sub-groove are located on opposite sides of the first cross-section, and the second sliding sub-groove extends to the first cross-section. A first rod segment extends from the second positioning protrusion to the first cross-section, which is the rod portion. When the second positioning protrusion passes the first positioning protrusion, the first rod segment is exposed from the second sliding sub-groove. The advantage of this design is that when the second positioning protrusion 211a passes the first positioning protrusion 110, the rod portion 212 is exposed relative to the second sliding sub-groove 101b, making the rod portion 212 easier to bend and deform.

[0395] Understandably, when the second positioning protrusion passes the first positioning protrusion, the length of the first rod segment is greater than twice the bending thickness of the rod portion, or twice the average diameter of the rod portion.

[0396] Understandably, the first segment is the segment of the rod from the first cross section to the second cross section.

[0397] In some implementations of the embodiments of this utility model, reference is made to Figure 48 When the second positioning protrusion 211a is located in the holding space 105, the first segment of the rod 212 is exposed relative to the second sliding sub-groove 101b. The advantage of this arrangement is that when the second positioning protrusion 211a passes the first positioning protrusion 110, the rod 212 is exposed relative to the second sliding sub-groove 101b, making the rod 212 easy to bend and deform.

[0398] In some implementations of this utility model, when the second positioning protrusion passes the first positioning protrusion, the rod portion exposes a preset length relative to the second sliding sub-groove, so that the rod portion can be easily bent and deformed.

[0399] This utility model embodiment also proposes a multi-leg bracket, including a support rod 3 and at least three legs 1, the at least three legs 1 being used to support the support rod 3; all at least three legs 1 are telescopic legs 1a.

[0400] Reference Figure 1-65This utility model embodiment also proposes a multi-leg support 1, including a support rod 3, at least three legs 1, a first mounting part 6, and at least one first connecting rod 7. The at least three legs 1 are used to support the support rod 3, and the support rod 3 is used to support the electrical main body 2. At least one of the at least three legs 1 is a telescopic leg 1a. The telescopic leg 1a includes a first support member 100 and a second support member 200. The first support member 100 is provided with at least one first sliding groove 101. The second support member 200 includes at least one support rod 210. The at least one support rod 210 corresponds to at least one first sliding groove 101. The support rod 210 is slidably installed in the first sliding groove 101. The support rod 210 is slidable relative to the first support member 100 to change the length of the telescopic leg 1a. The support rod 210 is configured such that when the telescopic leg 1a is in the supported state... The first support member 100 can be positioned at the first support member 100; at least one first connecting rod 7 corresponds to at least one telescopic leg 1a; the first mounting part 6 is slidably mounted on the support rod 3; one end of the first connecting rod 7 is rotatably connected to the first support member 100 of the telescopic leg 1a and the other end is rotatably connected to the support rod 3; the first support member 100 is rotatably connected to the first mounting part 6; when the first mounting part 6 slides along the telescopic rod, the angle between the telescopic leg 1a and the support rod 3 changes; the first support member 100 is provided with a first storage cavity 108, the telescopic leg 1a can be stored in the support rod 3, and the first storage cavity 108 is configured to store the first connecting rod 7 when the first support member 100 is stored in the support rod 3; at least one of the at least one first sliding groove 101 is a proximity type first sliding groove 101; the first storage cavity 108 is close to the proximity type first sliding groove 101.

[0401] The advantages of the above configuration are that one of the legs 1 is a telescopic leg 1a. When the multi-leg bracket is not in use, the support rod 210 can slide relative to the first support member 100, making the length of the telescopic leg 1a shorter, thereby reducing the volume occupied by the multi-leg bracket. Furthermore, when the multi-leg bracket is in use, the length of the telescopic leg 1a is adjustable, allowing the multi-leg bracket to better adapt to uneven or inclined support surfaces 1001. Additionally, the telescopic leg 1a is retractable, and the first storage cavity 108 is close to the first sliding groove 101, making the multi-leg bracket structure compact, with the telescopic leg 1a occupying even less volume after accommodating the support rod 3.

[0402] Understandably, the number of first links 7 is the same as the number of telescopic legs 1a.

[0403] For example, the first receiving cavity 108 extends in the same direction as the first sliding groove 101.

[0404] For example, the angle between the extension direction of the first receiving cavity 108 and the first sliding groove 101 is less than or equal to 5°, such as 1°, 2°, 3°, 4°, 5°, etc.

[0405] For example, at least one of the first sliding grooves 101 is a proximity first sliding groove 101, or all of them are proximity first sliding grooves 101.

[0406] For example, there are two first sliding grooves 101, one of which is a proximity type first sliding groove 101, or two of which are proximity type first sliding grooves 101.

[0407] For example, the number of first sliding grooves 101 is 3, of which 1 is a proximity type first sliding groove 101, 2 are proximity type first sliding grooves 101, and 3 are proximity type first sliding grooves 101.

[0408] In some implementations of this utility model, the number of proximity-type first sliding grooves 101 is one, and the one proximity-type first sliding groove 101 is located on one side of the first receiving cavity 108; or, the number of proximity-type first sliding grooves 101 is two, and the two proximity-type first sliding grooves 101 are respectively located on both sides of the first receiving cavity 108.

[0409] The advantage of this design is that the telescopic support leg 1a has a compact structure, which makes the telescopic support leg 1a occupy less space after being stored in the support rod 3.

[0410] For example, there is one proximity-type first sliding groove 101, which is located on one side of the first receiving cavity 108.

[0411] For example, the number of first sliding grooves 101 is at least 2, the number of proximity first sliding grooves 101 is 1, and the proximity first sliding groove 101 is located on one side of the first receiving cavity 108;

[0412] For example, there are at least two first sliding grooves 101, and there are two adjacent first sliding grooves 101, which are located on both sides of the first receiving cavity 108.

[0413] For example, there are two first sliding grooves 101, and both first sliding grooves 101 are adjacent first sliding grooves 101.

[0414] For example, there are 3 first sliding grooves 101, and 1 proximity first sliding groove 101, with the proximity first sliding groove 101 located on one side of the first storage cavity 108. Alternatively, there are 2 proximity first sliding grooves 101, with the 2 proximity first sliding grooves 101 located on both sides of the first storage cavity 108.

[0415] In some implementations of the embodiments of this utility model, reference is made to Figures 1-65The first support member 100 is also provided with at least one first mounting opening 102, and at least one first mounting opening 102 corresponds to at least one first sliding groove 101 respectively. The first mounting opening 102 is connected to the corresponding first sliding groove 101. The support rod 210 can be inserted into the corresponding first sliding groove 101 through the corresponding first mounting opening 102.

[0416] The advantage of this design is that the first support member 100 has a first installation opening 102, which facilitates the installation of the support rod 210 onto the first support member 100.

[0417] In some implementations of the embodiments of this utility model, reference is made to Figure 22 The second support member 200 is configured to support a support surface 1001 when the telescopic leg 1a is in the supported state. The first support member 100 has a second side 107b and a first side 107a opposite to each other. When the telescopic leg 1a is in the supported state, the second side 107b is closer to the support surface 1001 relative to the first side 107a. The first mounting opening 102 is provided on the second side 107b of the first support member 100, and the first storage cavity 108 is provided on the second side 107b of the first support member 100.

[0418] The advantages of the above-mentioned design are that, on the one hand, it makes the telescopic support leg 1a more aesthetically pleasing, and when the user uses the telescopic support leg 1a, it avoids the user from observing the support rod 210 extending or retracting within the first sliding groove 101 of the first support member 100. On the other hand, by placing the first mounting opening 102 on the second side 107b, the telescopic support leg 1a is made safer to use, and the user's hand is less likely to get caught when the telescopic support leg 1a extends or retracts.

[0419] In some implementations of this utility model, at least three legs 1 are telescopic legs 1a. When at least three telescopic legs 1a are all housed in the support rod 3, the second side 107b of the first support member 100 of the at least three telescopic legs 1a forms a first columnar surface.

[0420] Understandably, the first columnar surface is the side surface of the first columnar structure. The first columnar structure can be a cylinder, an elliptical cylinder, a prism, a rounded prism, etc., and the first columnar surface can be a cylindrical surface, an elliptical cylindrical surface, a prism surface, or a rounded prism surface.

[0421] Reference Figure 1-65This utility model embodiment also proposes a multi-leg support 1, including a support rod 3, at least three legs 1, a first mounting part 6, and at least one first connecting rod 7. The at least three legs 1 are used to support the support rod 3, and the support rod 3 is used to support the electrical main body 2. At least one of the at least three legs 1 is a telescopic leg 1a. The telescopic leg 1a includes a first support member 100 and a second support member 200. The first support member 100 is provided with at least one first sliding groove 101. The second support member 200 includes at least one support rod 210. The at least one support rod 210 corresponds to at least one first sliding groove 101. The support rod 210 is slidably installed in the first sliding groove 101. The support rod 210 is slidable relative to the first support member 100 to change the length of the telescopic leg 1a. The support rod 210 is configured to be positionable when the telescopic leg 1a is in the supported state. The first support member 100 has at least one first connecting rod 7 corresponding to at least one telescopic leg 1a. The first mounting part 6 is slidably mounted on the support rod 3. One end of the first connecting rod 7 is rotatably connected to the first support member 100 of the telescopic leg 1a, and the other end is rotatably connected to the support rod 3. The first support member 100 is rotatably connected to the first mounting part 6. When the first mounting part 6 slides along the telescopic rod, the angle between the telescopic leg 1a and the support rod 3 changes. The first support member 100 is provided with a first storage cavity 108, and the telescopic leg 1a can be stored in the support rod 3. The first storage cavity 108 is configured to store the first connecting rod 7 when the first support member 100 is stored in the support rod 3. At least one of the at least one first sliding groove 101 is a parallel first sliding groove 101. The extending direction of the first storage cavity 108 is parallel to the parallel first sliding groove 101.

[0422] Understandably, aligning the first storage cavity 108 parallel to the parallel first sliding groove 101 makes the telescopic support leg 1a more compact.

[0423] For example, there is one first sliding groove 101, and there is one parallel first sliding groove 101.

[0424] For example, the number of first sliding grooves 101 is 2, and the number of parallel first sliding grooves 101 is 1 or 2.

[0425] For example, the number of first sliding grooves 101 is 3, and the number of parallel first sliding grooves 101 is 1, 2, or 3.

[0426] In some implementations of this utility model, the number of parallel first sliding grooves 101 is one, and the one parallel first sliding groove 101 is located on one side of the first sliding groove 101; the number of parallel first sliding grooves 101 is two, and the two parallel first sliding grooves 101 are located on both sides of the first sliding groove 101 respectively.

[0427] In some implementations of this utility model, the number of parallel first sliding grooves 101 is one, and the one parallel first sliding groove 101 is close to one side of the first sliding groove 101; the number of parallel first sliding grooves 101 is two, and the two parallel first sliding grooves 101 are close to both sides of the first sliding groove 101 respectively.

[0428] In some implementations of this utility model, the first support member 100 is further provided with at least one first mounting opening 102, and at least one first mounting opening 102 corresponds to at least one first sliding groove 101 respectively. The first mounting opening 102 is connected to the corresponding first sliding groove 101. The support rod 210 can be inserted into the corresponding first sliding groove 101 through the corresponding first mounting opening 102.

[0429] The first end of the support rod 210 can be inserted into the corresponding first sliding groove through the corresponding first mounting opening 102 so that the support rod is slidably installed in the first sliding groove. During the extension of the telescopic support leg 1a, the first end of the support rod gradually moves away from the first support member.

[0430] In some implementations of this utility model, the second support member 200 is configured to support a support surface 1001 when the telescopic leg 1a is in a supported state. The first support member 100 has a second side 107b and a first side 107a opposite to each other. When the telescopic leg 1a is in a supported state, the second side 107b is closer to the support surface 1001 relative to the first side 107a. The first mounting opening 102 is provided on the second side 107b of the first support member 100, and the first storage cavity 108 is provided on the second side 107b of the first support member 100.

[0431] In some implementations of this utility model, at least three legs 1 are telescopic legs 1a. When at least three telescopic legs 1a are all housed in the support rod 3, the second side 107b of the first support member 100 of the at least three telescopic legs 1a forms a first columnar surface.

[0432] Reference Figure 1-65 This utility model embodiment also proposes a telescopic support leg 1a, which serves as one of the supports 1 of a multi-leg bracket. The telescopic support leg 1a includes a first support member 100 and a second support member 200. The second support member 200 includes at least one support rod 210, which is slidable relative to the first support member 100 to change the length of the telescopic support leg 1a. When the telescopic support leg 1a is in a supported state, the support rod 210 can be positioned on the first support member 100.

[0433] The advantage of this design is that when the multi-leg bracket is not in use, the support rod 210 can slide relative to the first sliding groove 101, which shortens the length of the telescopic leg 1a, thereby reducing the volume occupied by the telescopic leg 1a and thus reducing the volume occupied by the multi-leg bracket.

[0434] In some implementations of this utility model, when the telescopic support leg 1a is in a supported state, the second support member 200 is supported on a support surface 1001, or the first support member 100 is supported on a support surface 1001.

[0435] In some implementations of this utility model, the number of support rods 210 is two.

[0436] In some implementations of this utility model, the two support rods 210 are located on opposite sides of the support rod 210.

[0437] In some implementations of this utility model, the support rod 210 is sleeved on the first support member 100.

[0438] This utility model embodiment also proposes a telescopic support leg 1a, which serves as one of the supports 1 of a multi-leg bracket. The telescopic support leg 1a includes a first support member 100 and a second support member 200. The first support member 100 is provided with at least one first sliding groove 101. The second support member 200 includes at least one support rod 210 and a pad 220. At least one support rod 210 corresponds to at least one first sliding groove 101. The support rod 210 is slidably installed in the corresponding first sliding groove 101 to change the length of the telescopic support leg 1a. The support rod 210 is connected to the pad 220. When the telescopic support leg 1a is in a supported state, the pad 220 is supported on a support surface 1001, and the support rod 210 can be positioned on the first support member 100.

[0439] In some implementations of this utility model, the support rod 210 and the pad 220 are non-detachably connected.

[0440] In some implementations of this utility model, the support rod 210 and the pad 220 are integrated.

[0441] In some implementations of this utility model, the support rod 210 and the pad 220 are detachably connected.

[0442] In some implementations of this utility model, the support rod 210 and the pad 220 are screwed in, riveted, snapped in, or magnetically connected.

[0443] In some implementations of this utility model, the first support member 100 has a first approach side 106a, and the pad 220 has a second approach side 202a. When the telescopic support 1a is extended to its shortest state, the first approach side 106a and the second approach side 202a are aligned.

[0444] In some implementations of this utility model, the first support member 100 has a first outer side 106, and the pad 220 has a second outer side 202. When the telescopic support 1a is extended to its shortest state, the first outer side 106 and the second outer side 202 are aligned.

[0445] In some implementations of this utility model, the first support member 100 has a first end face 109, and the pad 220 has a second end face 205. The first end face 109 and the second end face 205 are adapted to each other. When the telescopic support leg 1a is extended to its shortest state, the first end face 109 and the second end face 205 are in contact or close to each other.

[0446] This utility model embodiment also proposes a multi-leg bracket, including a support rod 3 and at least three legs 1. The support rod 3 is used to support the electrical main body 2, and the at least three legs 1 are used to support the support rod 3; at least one of the at least three legs 1 is a telescopic leg 1a.

[0447] In some implementations of this utility model, at least three legs 1 are telescopic legs 1a.

[0448] Reference Figures 49-65This utility model embodiment also proposes a telescopic support leg 1a, which serves as one of the supports 1 of a multi-leg bracket. The telescopic support leg 1a includes a first support member 100 and a second support member 200. The first support member 100 is provided with at least one first sliding groove 101, at least one first mounting opening 102, and at least one second mounting opening 1012. The at least one first mounting opening 102 corresponds to at least one first sliding groove 101 and communicates with the corresponding first sliding groove 101. The at least one second mounting opening 1012 corresponds to at least one first sliding groove 101 and communicates with the corresponding first sliding groove 101. The second support member 200 includes at least one support rod 210, which is connected to the first sliding groove 101. The second support member 200 includes at least one support rod 210, which corresponds to at least one first sliding groove 101. The support rod 210 has a first end and a second end. The second end of the support rod 210 can be inserted into the corresponding first sliding groove 101 through the corresponding first mounting opening 102 so that the support rod 210 is slidably mounted in the first sliding groove 101. When the telescopic leg 1a is extended, the first end of the support rod 210 extends out of the first sliding groove 101. The support rod 210 can change the length of the telescopic leg 1a relative to the first sliding groove 101. During the extension of the telescopic leg, the first end of the support rod 210 gradually moves away from the first support member 100. The support rod 210 is configured to be positioned on the first support member 100 when the telescopic leg 1a is in the supported state.

[0449] In implementing this embodiment of the utility model, when the multi-leg bracket is not in use, the telescopic support leg 1a can slide relative to the first sliding groove 101, thus shortening the length of the telescopic support leg 1a and reducing its volume, thereby reducing the volume occupied by the multi-leg bracket. Furthermore, the first support member 100 is provided with a first mounting opening 102 and a second mounting opening 1012 to facilitate the installation of the second support member 200 onto the first support member 100.

[0450] In some implementations of this utility model, the support rod 210 includes a rod portion 212 and a protrusion 211 detachably mounted on the rod portion 212. The rod portion 212 can be inserted into the first sliding groove 101 through a corresponding first mounting opening 102. The protrusion 211 is configured such that after the rod portion 212 is inserted into the first sliding groove 101, it can be mounted on the rod portion 212 through a second mounting opening 1012.

[0451] For example, the protrusion 211 is welded to or glued to the rod portion 212.

[0452] For example, the protrusion 211 is detachably mounted to the rod 212, for example, the protrusion 211 is threaded, snapped, riveted, or tied to the rod 212.

[0453] Understandably, the number of first mounting openings 102 is the same as the number of first sliding grooves 101, the number of support rods 210 is the same as the number of first sliding grooves 101, and the number of second mounting openings 1012 is the same as the number of first sliding grooves 101.

[0454] For example, the shape of the support rod 210 is adapted to the first sliding groove 101.

[0455] For example, the first mounting opening 102 is located at one end of the first support member 100, and the second mounting opening 1012 is located on the side of the first support member 100.

[0456] For example, the shape of the first mounting opening 102 is the same as the cross-sectional shape of the first sliding groove 101.

[0457] Understandably, for example, a multi-legged support can be a tripod, quadruped, pentagonal, or hexapod, meaning the number of legs 1 on the multi-legged support can be 3, 4, 5, 6, etc.

[0458] For example, the multi-leg bracket is used to support the power-consuming body 2, which can be a fan, lamp, mobile phone, tablet, etc.

[0459] For example, the multi-leg bracket is used to support the power-consuming body 2, which can be a fan, lamp, mobile phone, tablet, etc.

[0460] Understandably, the first mounting opening 102 can be any opening that facilitates the insertion of the support rod 210 into the first sliding groove 101, and the second mounting opening 1012 can be any shape of opening that facilitates the detachable mounting of the rod portion 212 by the protrusion 211.

[0461] Understandably, the support rod 210 can be positioned at any location relative to the first support member 100, or the support rod 210 can be positioned at a specific location relative to the first support member 100.

[0462] For example, the support rod 210 makes damped contact with the first sliding groove 101 so that it can be positioned on the first support member 100 when the telescopic support leg 1a is in the supported state. For example, the support rod 210 and the first sliding groove 101 are interference-fitted, or the support rod 210 and the inner wall of the first sliding groove 101 are provided with damping pads.

[0463] For example, a locking member is provided between the support rod 210 and the first support member 100; when the telescopic outrigger 1a is in the supported state, the locking member locks the support rod 210 to the first support member 100. The locking member can be installed on the first support member 100, and adjusting the locking member can lock or unlock the support rod 210 relative to the first support frame. For example, the locking member can be a threaded part that is threadedly installed on the first support member 100, and rotating the threaded part can cause it to abut or loosen against the support rod 210. The locking member can also be a cam-type locking member installed on the first support member 100, and rotating the boss-type locking member can cause it to abut or loosen against the support rod 210.

[0464] For example, the first support member 100 has a first positioning protrusion 110, and the support rod 210 has a second positioning protrusion 211a. When the support rod 210 slides relative to the first sliding groove 101, the second positioning protrusion 211a abuts against or slides past the first positioning protrusion 110. When the second positioning protrusion 211a abuts against the first positioning protrusion 110, the support rod 210 is positioned on the first support member 100 when the telescopic support leg 1a is in the supported state. For example, the protrusion 211 can be the second positioning protrusion 211a, or a portion of the protrusion 211 can be the second positioning protrusion 211a.

[0465] For example, refer to Figure 65 In the telescopic outrigger 1a, when the support rod 210 is only subjected to tension or pressure along its sliding direction, the support rod 210 and the first support member 100 are loosely fitted, for example, the support rod 210 and the first sliding groove 101 are clearance fitted. When the telescopic outrigger 1a is in the supported state (for example only, the angle between the telescopic direction of the telescopic outrigger 1a and the vertical line can be 45°-89.9°, for example 45°, 60°, 67°, 75°, etc.), the pressure F of the first support member 100 on the support rod 210 can be decomposed into a component force F1 perpendicular to its sliding direction and a component force F2 along its sliding direction. The component force F1 causes a frictional force (tangential constraint force) f between the first support member 100 and the first support member 100. When f = F2, the support rod 210 is positioned on the first support member 100. The first support member 100 has a first contact surface 103 that contacts the support rod 210. When the telescopic support leg 1a is in the supported state, the support rod 210 is in frictional contact with the first contact surface 103. F1 is parallel to the first contact surface 103, F2 is perpendicular to the first contact surface 103, and f is parallel to the first contact surface 103. When f = F2, the support rod 210 is positioned on the first support member 100. The first contact surface 103 can be two opposite sides of the first sliding groove 101.

[0466] For example, when the telescopic leg 1a is in the supported state, the first support member 100 is supported on a support surface 1001, or the second support member 200 is supported on a support surface 1001.

[0467] For example, when the telescopic outrigger 1a is in the supported state, the first support member 100 is supported on a support surface 1001, the support rod 210 can be directly supported on the support surface 1001, or the support rod 210 can be indirectly supported on the support surface 1001.

[0468] For example, the first sliding groove 101 is a columnar groove (which can be a single columnar groove, a stepped columnar groove, etc.), such as a cylindrical groove, a square columnar groove, a polygonal columnar groove, etc. It is understood that when the first support member 100 is an injection molded part, the first sliding groove 101 is allowed to have a certain draft angle. In this case, the first sliding groove 101 is an approximately columnar groove.

[0469] For example, the first sliding groove 101 can be a groove of any shape to accommodate the sliding of the support rod 210.

[0470] For example, the support rod 210 can be columnar (it can be a single column, stepped column, etc.), such as a cylindrical rod, a square column, a polygonal column, etc.

[0471] In other examples, the support rod 210 includes only the rod portion 212, with a first mounting opening 102 located at the first end of the first support member 100 to facilitate insertion of the support rod 210.

[0472] In some implementations of the embodiments of this utility model, reference is made to Figure 59 The first sliding groove 101 is provided with a first limiting wall 104, and the protrusion 211 is configured to abut against the first limiting wall 104 when the telescopic leg 1a is extended to its longest state.

[0473] The advantage of setting the first limiting wall 104 is that it prevents the support rod 210 from coming out of the first sliding groove 101 during the extension of the telescopic leg 1a, so that the telescopic leg 1a remains intact during use.

[0474] For example, the first sliding groove 101 includes a first sliding sub-groove 101a and a second sliding sub-groove 101b that are directly connected, and the first limiting wall 104 is located at the junction of the first sliding sub-groove 101a and the second sliding sub-groove 101b.

[0475] For example, the first limiting wall 104 is located at other positions of the first sliding sub-slot 101a.

[0476] For example, the first limiting wall 104 is a curved surface or a plane, such as a convex curved surface or a concave curved surface.

[0477] For example, when the first limiting wall 104 is a plane, the first limiting wall 104 is perpendicular to or not perpendicular to the extension direction of the first sliding groove 101.

[0478] In some implementations of the embodiments of this utility model, reference is made to Figures 61-64 The protrusion 211 is configured to be detachably mounted on the rod 212 via the second mounting opening 1012 after the rod 212 is inserted into the first sliding groove 101. The rod 212 includes a connecting rod body segment 212a and a mounting rod segment 212b. The protrusion 211 has a receiving groove 206 and a first opening 207. The first opening 207 communicates with the receiving groove 206. The receiving groove 206 is adapted to the mounting rod segment 212b. The mounting rod segment 212b is assembled with the receiving groove 206 via the first opening 207.

[0479] Understandably, the advantage of providing the first opening 207 is that it facilitates the installation of the protrusion 211 onto the mounting rod segment 212b.

[0480] For example, the groove wall of the receiving groove 206 elastically wraps around the mounting rod section 212b, such that the protrusion 211 is fitted onto the mounting rod section 212b.

[0481] In some implementations of the embodiments of this utility model, reference is made to Figure 63 The receiving groove 206 is a cylindrical groove, the mounting rod segment 212b is a cylinder, and the width of the first opening 207 is less than or equal to the diameter of the holding part.

[0482] Understandably, during the process of installing the rod segment 212b into the receiving groove 206 through the first opening 207, the protrusion 211 will undergo elastic deformation so that the mounting rod segment 212b can be installed into the receiving groove 206 through the first mounting opening 102.

[0483] Understandably, after the mounting rod segment 212b is inserted into the receiving groove 206, the groove wall of the receiving groove 206 elastically wraps around the mounting rod segment 212b, so that the protrusion 211 is assembled on the mounting rod segment 212b.

[0484] In some implementations of the embodiments of this utility model, reference is made to Figure 62 The rod portion 212 has two retaining walls 212c, and a protrusion 211 is located between the two retaining walls 212c. The two retaining walls 212c are configured such that when the telescopic leg 1a is extended or retracted, the protrusion 211 is retained between the two retaining walls 212c. The rod portion 212 has a second projection plane perpendicular to its extension direction. The projection of the rod body segment 212a onto the second projection plane encompasses the projection of the mounting rod segment 212b onto the second projection plane. Both ends of the mounting rod segment 212b are connected to the rod body segment 212a. The two retaining walls 212c are located at the two joints of the rod body segment 212a and the mounting rod segment 212b, respectively.

[0485] Understandably, the cross-section of the mounting segment 212b is smaller than that of the main segment 212a.

[0486] Understandably, the junction between the mounting segment 212b and the main body segment 212a is stepped.

[0487] Understandably, the main body segment 212a is divided into two segments, and the two segments of the main body segment 212a are respectively connected to the two ends of the mounting segment 212b.

[0488] For example, both the mounting rod segment 212b and the rod column segment are cylindrical, the mounting rod segment 212b is coaxial with the rod body segment 212a, and the diameter of the mounting rod segment 212b is smaller than that of the rod body segment 212a.

[0489] For example, the retaining wall 212c can be any shape of the retaining protrusion 211, such as a plane or a curved surface.

[0490] In some implementations of the embodiments of this utility model, reference is made to Figure 53 , Figure 59 The first sliding groove 101 includes a first sliding sub-groove 101a and a second sliding sub-groove 101b communicating with the first sliding sub-groove 101a. The first sliding sub-groove 101a is used for sliding the protrusion 211. The first sliding sub-groove 101a has a first sliding wall 101d, and the protrusion 211 has a second sliding wall 211c adapted to the first sliding wall 101d. When the telescopic leg 1a is extended or retracted, the second sliding sub-groove 101b is adapted to the rod 212. The second sliding wall 211c is configured to slide along the first sliding wall 101d when the telescopic leg 1a is extended or retracted.

[0491] Understandably, the first sliding sub-groove 101a can be any shape of space for the protrusion 211 to slide.

[0492] Understandably, the first sliding wall 101d can be a stretching surface along the telescopic direction of the telescopic leg 1a.

[0493] Understandably, the second sliding wall 211c can be a stretching surface along the telescopic direction of the telescopic leg 1a.

[0494] Understandably, the first sliding wall 101d is adapted to the second sliding wall 211c.

[0495] For example, the first sliding wall 101d can be a plane, a cylindrical surface, a prism surface, etc., and the second sliding wall 211c can be a plane, a cylindrical surface, a prism surface, etc., that is adapted to the first sliding wall 101d.

[0496] In some implementations of the embodiments of this utility model, reference is made to Figure 59The first sliding groove 101 is provided with a first limiting wall 104, and the protrusion 211 is configured to abut against the first limiting wall 104 when the telescopic support leg 1a is extended to its longest state; the first limiting wall 104 is located at the junction of the first sliding sub-groove 101a and the second sliding sub-groove 101b.

[0497] In other examples, the first limiting wall 104 is located at other positions of the first sliding sub-groove 101a.

[0498] In some implementations of the embodiments of this utility model, reference is made to Figure 61 The second support member 200 also includes a foot 220, which is non-detachably connected to the support rod 210; the foot 220 is configured to support a support surface 1001 when the telescopic support leg 1a is in the supported state.

[0499] For example, the foot 220 is welded, glued, bonded, or coated with adhesive to the support rod 210.

[0500] For example, the support rod 210 is a metal part, and the pad 220 is an injection molded part, which is wrapped around the support rod 210 in the form of overmolded injection molding.

[0501] In some implementations of this utility model, the foot 220 and the support rod 210 are integrated.

[0502] For example, the foot 220 and the support rod 210 are integrally cast.

[0503] For example, the foot 220 and the support rod 210 are integrally injection molded.

[0504] In some implementations of this utility model, the second support member 200 further includes a foot 220, which is detachably connected to the support rod 210; the foot 220 is configured to support a support surface 1001 when the telescopic support leg 1a is in the support state.

[0505] In some implementations of this utility model, there are two support rods 210, which are located on opposite sides of the first support member 100.

[0506] In some implementations of this utility model, the second support member 200 is configured to support a support surface 1001 when the telescopic leg 1a is in a supported state. The first support member 100 has a second side 107b and a first side 107a opposite to each other. When the telescopic leg 1a is in a supported state, the second side 107b is closer to the support surface 1001 relative to the first side 107a. The second mounting opening 1012 is provided on the second side 107b of the first support member 100.

[0507] In some implementations of the embodiments of this utility model, reference is made to Figure 64 The first mounting opening 102 is located at the first end of the first support member 100. When the telescopic support leg 1a is extended, the support rod 210 extends from the first end of the first support member 100.

[0508] In some implementations of this utility model, the rod has a first end and a second end, the second end of the rod can be inserted into a corresponding first sliding groove through a corresponding first mounting opening, and the first end of the rod extends out from the first sliding groove when the telescopic support leg is extended.

[0509] In some implementations of the embodiments of this utility model, reference is made to Figures 67-68 The second adjusting part of the adjusting member 300 cooperates with the first adjusting part 211b of the support rod 210. When the adjusting member 300 rotates, it drives the support rod 210 to rotate so that the support rod 210 is mounted on the pad 220. When the adjusting member 300 drives the support rod 210 to rotate, the adjusting member 300 is at least partially located in the first mounting opening 102. For example, the rotation axis of the adjusting member 300 has an angle with the rotation axis of the support rod 210, and the angle is less than or equal to 15° (e.g., 1°, 3°, 5°, 9°, 10°, 15°, etc.). When the first end of the adjusting member 300 is engaged with the first adjusting part 211b and the second end extends beyond the first support member 100 through the first mounting opening 102, the extension of the second end of the adjusting member beyond the first support member 100 facilitates the user's operation of the adjusting member. For example, if the adjusting member is a screwdriver, the second end of the adjusting member has a gripping part 320, and the extension of the second end of the adjusting member beyond the first support member 100 facilitates the user's gripping part 320 of the adjusting member 300.

[0510] For example, the adjusting member 300 is a drive rod, and the second end of the adjusting member has a mating part. The mating part of the drive rod can mate with the output shaft of the motor. The second end of the adjusting member extends beyond the first support member 100, so that the mating part of the adjusting member can mate with the output shaft of the motor.

[0511] Understandably, the first end of the adjusting member 300 has a second adjusting part 310, which can be a second adjusting protrusion or a second adjusting groove.

[0512] For example, when the adjusting member 300 drives the support rod 210 to rotate, the adjusting member 300 as a whole is located in the first mounting opening 102, and the rotation axis of the adjusting member 300 is coaxial with the rotation axis of the support rod 210.

[0513] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A telescopic leg, characterized in that The telescopic supporting leg is one of the supporting legs of the multi-leg supporting frame, The telescopic supporting leg comprises a first supporting member and a second supporting member, The first supporting member is provided with at least one first sliding groove and at least one first mounting opening, the at least one first mounting opening corresponds to the at least one first sliding groove respectively, and the first mounting opening is in communication with the corresponding first sliding groove, The second supporting member comprises at least one supporting rod, the at least one supporting rod corresponds to the at least one first sliding groove respectively, the first end of the supporting rod is inserted into the corresponding first sliding groove through the corresponding first mounting opening so that the supporting rod is slidingly mounted in the first sliding groove, and the sliding of the supporting rod relative to the first sliding groove can change the length of the telescopic supporting leg. The supporting rod is configured to be positioned on the first supporting member when the telescopic supporting leg is in a supporting state. The number of the supporting rods is 2, 3, 4 or 5, the number of the supporting rods is the same as the number of the first sliding grooves, and the number of the first mounting openings is the same as the number of the first sliding grooves.

2. A telescoping foot according to claim 1, wherein, The second supporting member is configured to be supported on a supporting surface when the telescopic supporting leg is in the supporting state, The second supporting member further comprises a foot pad configured to be supported on the supporting surface when the telescopic supporting leg is in the supporting state. After the supporting rod is mounted in the first sliding groove, the first end of the supporting rod is extended from the first sliding groove so that the supporting rod is detachably connected with the foot pad.

3. A telescoping foot according to claim 2, wherein, The supporting rod comprises a rod portion and a protruding portion, and the protruding portion is protruded on the rod portion. The first end of the rod portion is inserted into the corresponding first sliding groove through the corresponding first mounting opening so that the supporting rod is slidingly mounted in the first sliding groove, the first end of the rod portion is extended from the first sliding groove so that the rod portion is detachably connected with the foot pad, and the first end of the supporting rod is gradually away from the first supporting member in the process of the extension of the telescopic supporting leg. A first limiting wall is arranged in the first sliding groove, and the first limiting wall is located between the protruding portion and the first end of the rod portion after the supporting rod is mounted in the first sliding groove. The protruding portion is configured to abut against the first limiting wall when the telescopic supporting leg is extended to the longest state.

4. The telescopic supporting leg according to claim 3, wherein The first sliding groove comprises a first sliding sub-groove and a second sliding sub-groove, the first sliding sub-groove is in communication with the second sliding sub-groove, and the first mounting opening is in communication with the first sliding sub-groove; The first sliding sub-groove is adapted to the protruding portion of the supporting rod, and the second sliding sub-groove is adapted to the rod portion of the supporting rod; The first limiting wall is located in the first sliding sub-groove.

5. A telescoping foot according to claim 4, wherein, The first limiting wall is located at the joint of the first sliding sub-groove and the second sliding sub-groove, has a first projection plane perpendicular to the extension direction of the first sliding groove, the projection of the first sliding sub-groove on the first projection plane contains the projection of the second sliding sub-groove on the first projection plane. The first limiting wall is curved or planar. The first limiting wall is perpendicular to the extension direction of the first sliding groove.

6. The telescopic leg according to claim 4, wherein The first sliding sub-groove is provided with a first positioning protrusion, and the protruding part abuts against or slides through the first positioning protrusion when the supporting rod slides relative to the first sliding groove, and the protruding part abutting against the first positioning protrusion can position the supporting rod in the first supporting part when the telescopic leg is in the supporting state; The first mounting opening is in communication with the second sliding sub-groove; The first mounting opening is configured as a deformation space of the supporting rod when the protruding part slides through the first positioning protrusion.

7. The telescopic leg according to claim 6, wherein The second sliding sub-groove surrounds the rod part, the second sliding sub-groove extends to a first cross section, the first mounting opening extends to the first cross section, the second sliding sub-groove extends to the first cross section, and the second sliding sub-groove and the first mounting opening are located on opposite sides of the first cross section, respectively; The first limiting wall and the first positioning protrusion are a clamping space matched with the protruding part, and the clamping space is used for clamping the protruding part; The rod part is cylindrical, the maximum thickness of the first positioning protrusion is 5%-15% of the diameter of the rod part, the first positioning protrusion extends to a third cross section, the first positioning protrusion and the second sliding sub-groove are located on opposite sides of the third cross section, respectively, and the distance from the third cross section to the first cross section is greater than or equal to one diameter of the rod part.

8. The telescoping foot according to claim 3, wherein, The protruding part is located at the second end of the rod part; The rod part is screw-connected with the foot, the protruding part is provided with a first adjusting part, after the supporting rod is inserted into the first sliding groove through the first mounting opening, the first adjusting part is configured to be matched with an adjusting member, the adjusting member has a second adjusting part matched with the first adjusting part, the adjusting member can be matched with the first adjusting part through the first mounting opening and rotated, and the adjusting member is configured to drive the rod part to rotate when it rotates so as to fasten or loosen the rod part with the foot; The first adjusting part is a first adjusting groove, and the second adjusting part is a second adjusting protrusion, or the first adjusting part is a first adjusting protrusion, and the second adjusting part is a second adjusting groove.

9. The telescoping foot according to claim 2, wherein, The supporting rod is screw-connected, riveted, clamped or magnetically connected with the foot.

10. The telescoping foot according to claim 2, wherein, The first supporting part is provided with a first clamping part, and the foot is provided with a second clamping part; The first clamping part is configured to be clamped with the second clamping part when the telescopic leg is contracted to the shortest state.

11. The telescoping foot according to claim 2, wherein, The foot has a second limiting wall configured to abut against the first supporting part when the telescopic leg is contracted to the shortest state. The first support member has a first approaching side, and the foot has a second approaching side, when the telescopic leg is in the shortest state, the first approaching side is aligned with the second approaching side.

12. The telescoping foot according to claim 2, wherein, The first support member has a first outer side, and the foot has a second outer side, when the telescopic leg is in the shortest state, the first outer side is aligned with the second outer side.

13. The telescoping foot according to claim 2, wherein, The first support member has a first end surface, and the foot has a second end surface, the first end surface is adapted to the second end surface, when the telescopic leg is in the shortest state, the first end surface is close to or close to the second end surface.

14. The telescoping foot according to claim 1, wherein, The support rod is integrally connected with the foot.

15. The telescoping foot according to claim 1, wherein, The rod part comprises a rod main body segment and a mounting rod segment connected with each other, the protruding part has a receiving groove and a first opening, the first opening is communicated with the receiving groove, the receiving groove is adapted to the mounting rod segment, and the mounting rod segment is assembled with the receiving groove through the first opening.

16. The telescoping foot according to claim 1, wherein, The number of the support rods is 2, and the number of the first sliding grooves is 2, and the two first sliding grooves are respectively located on the opposite sides of the first support member.

17. The telescoping foot according to claim 1, wherein, The first support member has a first positioning protrusion, and the support rod has a second positioning protrusion, when the support rod slides relative to the first sliding groove, the second positioning protrusion abuts against or slides through the first positioning protrusion, and when the second positioning protrusion abuts against the first positioning protrusion, the support rod is positioned on the first support member when the telescopic leg is in the supporting state.

18. The telescopic leg according to claim 17, wherein The support rod comprises a rod part and a protruding part, and the protruding part is protruded on the rod part. The first end of the rod part is inserted into the corresponding first sliding groove through the corresponding first mounting opening, so that the support rod is slidingly mounted in the first sliding groove, and during the extension of the telescopic leg, the first end of the support rod is gradually away from the first support member. During the mounting of the support rod in the first sliding groove, the first end of the rod part sequentially passes through the first mounting opening and the first sliding groove. The first limiting wall is arranged in the first sliding groove, and after the first mounting opening of the support rod is inserted into the first sliding groove, the first limiting wall is located between the protruding part and the first end of the rod part. The protruding part abuts against the first limiting wall when the telescopic leg is in the longest state. The second positioning protrusion is the protruding part.

19. The telescopic leg according to claim 1, wherein The second support member is configured to be supported on a supporting surface when the telescopic leg is in the supporting state, the first support member has opposite second and first sides, the second side is close to the supporting surface relative to the first side when the telescopic leg is in the supporting state, and the first mounting opening is arranged on the second side of the first support member.

20. The telescoping foot according to claim 1, wherein, The first end of the support rod can be extended from the first sliding groove to enable the support rod to be screw-connected with the foot, and during the extension of the telescopic leg, the first end of the support rod is gradually away from the first support member. The supporting rod is provided with a first adjusting part configured to be cooperated with an adjusting member, the adjusting member is provided with a second adjusting part adapted to the first adjusting part, the adjusting member is cooperated with the first adjusting part through the first installation opening and is rotated, and the adjusting member is rotated to rotate the supporting rod to fasten or loosen the supporting rod and the foot pad when the telescopic supporting leg is in the supporting state. When the telescopic supporting leg is in the supporting state, the foot pad is supported on a supporting surface.

21. The telescopic supporting leg according to claim 20, wherein, the first adjusting part is a first adjusting groove, and the second adjusting part is a second adjusting protrusion; the first adjusting groove is a key-shaped groove, and the second adjusting protrusion is a key-shaped protrusion, or the first adjusting groove is a straight groove, and the second adjusting protrusion is a straight protrusion, or the first adjusting groove is a cross-shaped groove, and the second adjusting protrusion is a cross-shaped protrusion, or the first adjusting groove is a polygonal groove, and the second adjusting protrusion is a polygonal protrusion, or the first adjusting groove is a semicircular groove, and the second adjusting protrusion is a semicircular protrusion, or the first adjusting groove is an elliptical groove, and the second adjusting protrusion is an elliptical protrusion; the first adjusting groove is a columnar groove, and the second adjusting protrusion is a columnar protrusion, or the first adjusting groove is a table-shaped groove, and the second adjusting protrusion is a table-shaped protrusion, or the first adjusting groove is a taper-shaped groove, and the second adjusting protrusion is a taper-shaped protrusion.

22. The telescoping foot according to claim 20, wherein, the first adjusting part is a first adjusting protrusion, and the second adjusting part is a second adjusting groove; the first adjusting protrusion is a key-shaped protrusion, and the second adjusting groove is a key-shaped groove, or the first adjusting protrusion is a straight protrusion, and the second adjusting groove is a straight groove, or the first adjusting protrusion is a cross-shaped protrusion, and the second adjusting groove is a cross-shaped groove, or the first adjusting protrusion is a polygonal protrusion, and the second adjusting groove is a polygonal groove, or the first adjusting protrusion is a semicircular protrusion, and the second adjusting groove is a semicircular groove, or the first adjusting protrusion is an elliptical protrusion, and the second adjusting groove is an elliptical groove; the first adjusting protrusion is a columnar protrusion, and the second adjusting groove is a columnar groove, or the first adjusting protrusion is a table-shaped protrusion, and the second adjusting groove is a table-shaped groove, or the first adjusting protrusion is a taper-shaped protrusion, and the second adjusting groove is a taper-shaped groove.

23. The telescoping foot according to claim 20, wherein, the first supporting member is provided with a first clamping part, and the foot pad is provided with a second clamping part; when the telescopic supporting leg is contracted to the shortest state, the first clamping part is clamped in the second clamping part; the first supporting member is provided with a first approaching edge, and the foot pad is provided with a second approaching edge; when the telescopic supporting leg is contracted to the shortest state, the first approaching edge is aligned with the second approaching edge.

24. The telescoping foot according to claim 20, wherein, the supporting rod comprises a rod part and a protruding part, the protruding part is protruded from the rod part, the rod part is screw-connected with the foot pad, and the first adjusting part is arranged on the protruding part; a first limiting wall is arranged in the first sliding groove, and the protruding part is configured to abut against the first limiting wall when the telescopic supporting leg is elongated to the longest state. The first support member has a first positioning protrusion, the protrusion portion abuts against or slides through the first positioning protrusion when the support rod slides relative to the first sliding groove, and the protrusion portion abutting against the first positioning protrusion positions the support rod relative to the first support member when the telescopic leg is in the supporting state.

25. The telescopic leg according to claim 20, wherein The first support member has a second side opposite to a first side, the second side is closer to the support surface relative to the first side when the telescopic leg is in the supporting state, and the first mounting opening is arranged on the second side of the first support member.

26. The telescoping foot according to claim 20, wherein, The foot pad is provided with a first threaded hole, and an outer thread is arranged on an end of the support rod close to the foot pad, the outer thread is matched with the first threaded hole, or the first foot pad is provided with a first threaded column, and the support rod is provided with a second threaded hole, the first threaded column is matched with the second threaded hole.

27. The telescopic leg according to claim 1, wherein The support rod comprises a rod portion and a second positioning protrusion, and the second positioning protrusion is protruded from the rod portion; The first support member has a first positioning protrusion, the second positioning protrusion abuts against or slides through the first positioning protrusion when the support rod slides relative to the first sliding groove, and the second positioning protrusion abutting against the first positioning protrusion positions the support rod relative to the second support member when the telescopic leg is in the supporting state; The first support member has at least one first avoiding space corresponding to the at least one first sliding groove, and the first avoiding space is configured as a deformation space of the support rod when the second positioning protrusion slides through the first positioning protrusion.

28. The telescoping foot according to claim 27, wherein, The second support member supports a support surface when the telescopic leg is in the supporting state.

29. The telescoping foot according to claim 27, wherein, The first positioning protrusion has two first side walls opposite to each other, and the distance between the two first side walls narrows from the bottom end to the top end of the first positioning protrusion.

30. The telescoping foot according to claim 29, wherein, The first side wall is gradually transitioned to the top end of the first positioning protrusion.

31. The retracting foot according to claim 27, wherein The first sliding groove comprises a second sliding sub-groove, The second sliding sub-groove is matched with the rod portion of the support rod; The second sliding sub-groove surrounds the rod portion; The first cross section is perpendicular to the telescopic direction of the telescopic leg, the first avoiding space and the second sliding sub-groove are respectively located on opposite sides of the first cross section, the first avoiding space extends to the first cross section, and the second sliding sub-groove extends to the first cross section; The second cross section is perpendicular to the telescopic direction of the telescopic leg, the second positioning protrusion and the second sliding sub-groove are respectively located on opposite sides of the second cross section, and the second positioning protrusion extends to the second cross section; The rod portion has a bending thickness along the thickness direction of the first positioning protrusion, the maximum thickness of the first positioning protrusion is 5%-15% of the bending thickness of the rod portion, and the distance from the first cross section to the second cross section is greater than or equal to one time of the bending thickness of the rod portion when the second positioning protrusion slides through the first positioning protrusion.

32. The telescoping foot according to claim 31, wherein, The maximum thickness of the first positioning protrusion is 5%, 8%, 10%, 12%, or 15% of the bending thickness of the rod portion; The distance from the second cross section to the first cross section is greater than or equal to 2 times the bending thickness of the rod portion when the second positioning protrusion slides through the first positioning protrusion.

33. The telescopic leg according to claim 27, wherein The second sliding sub-groove is adapted to the rod portion of the support rod; The second sliding sub-groove surrounds the rod portion; The first cross section is perpendicular to the telescopic direction of the telescopic leg, the first avoiding space and the second sliding sub-groove are respectively located on opposite sides of the first cross section, the first avoiding space extends to the first cross section, and the second sliding sub-groove extends to the first cross section; A third cross section is perpendicular to the telescopic direction of the telescopic leg, the first positioning protrusion extends to the third cross section, and the first positioning protrusion and the second sliding sub-groove are respectively located on opposite sides of the third cross section; The rod portion has a bending thickness in the thickness direction of the first positioning protrusion, the maximum thickness of the first positioning protrusion is 5%-15% of the bending thickness of the rod portion, and the distance from the first cross section to the third cross section is greater than or equal to 1 times the bending thickness of the rod portion.

34. The telescoping foot according to claim 33, wherein, The maximum thickness of the first positioning protrusion is 5%, 8%, 10%, 12%, or 15% of the bending thickness of the rod portion; and the distance from the third cross section to the first cross section is greater than or equal to 2 times the bending thickness of the rod portion.

35. The telescopic leg according to claim 27, wherein The second sliding sub-groove is adapted to the rod portion of the support rod; The second sliding sub-groove surrounds the rod portion; The first cross section is perpendicular to the telescopic direction of the telescopic leg, the first avoiding space and the second sliding sub-groove are respectively located on opposite sides of the first cross section, the first avoiding space extends to the first cross section, and the second sliding sub-groove extends to the first cross section; A third cross section is perpendicular to the telescopic direction of the telescopic leg, the first positioning protrusion extends to the third cross section, and the first positioning protrusion and the second sliding sub-groove are respectively located on opposite sides of the third cross section; The maximum thickness of the first positioning protrusion is 5%-15% of the average diameter of the rod portion, and the distance from the first cross section to the third cross section is greater than or equal to 1 times the average diameter of the rod portion.

36. The telescoping foot according to claim 35, wherein, The maximum thickness of the first positioning protrusion is 5%, 8%, 10%, 12%, or 15% of the average diameter of the rod portion; The distance from the first cross section to the third cross section is greater than or equal to 2 times the average diameter of the rod portion; The rod portion is in a cylindrical shape, and the average diameter of the rod portion is the diameter of the rod portion.

37. The telescoping foot according to Claim 27, wherein, The first sliding groove comprises a second sliding sub-groove, The second sliding sub-groove is adapted to the rod portion of the support rod; The second sliding sub-groove surrounds the rod portion; The first cross section is perpendicular to the telescopic direction of the telescopic leg, the first avoiding space and the second sliding sub-groove are respectively located on opposite sides of the first cross section, and the second sliding sub-groove extends to the first cross section; The first rod segment is from the first cross section to the second positioning protrusion; The first rod segment is exposed from the second sliding sub-groove when the second positioning protrusion passes the first positioning protrusion.

38. A telescoping foot according to any of claims 31-37, wherein, The first sliding groove is provided with a first limiting wall, the first limiting wall is located outside the second sliding sub-groove, and the first limiting wall is configured to abut against the second positioning protrusion when the telescopic supporting leg is longest. The first limiting wall and the first positioning protrusion are provided with a clamping space matched with the second positioning protrusion, and the clamping space is used for clamping the second positioning protrusion.

39. The telescoping foot according to claim 38, wherein, The first sliding groove is provided with a first protruding strip, one end of the first protruding strip is provided with the first limiting wall, and the other end of the first protruding strip extends to one end of the second sliding sub-groove. The first limiting wall is a plane, and the first limiting wall is perpendicular to the extension direction of the first sliding groove.

40. The telescoping foot according to Claim 27, wherein, The first sliding groove is provided with a first limiting wall, and the first limiting wall is configured to abut against the second positioning protrusion when the telescopic supporting leg is longest. The first limiting wall and the first positioning protrusion are provided with a clamping space matched with the second positioning protrusion, and the clamping space is used for clamping the second positioning protrusion.

41. The telescoping foot according to claim 1, wherein, The supporting rod comprises a rod part and a protruding part detachably mounted on the rod part, The first sliding groove is provided with a first limiting wall, and the protruding part is configured to abut against the first limiting wall when the telescopic supporting leg is elongated to the longest state.

42. The telescoping foot according to claim 41, wherein, When the telescopic supporting leg is in a supporting state, the second supporting piece is supported on a supporting surface, or the first supporting piece is supported on a supporting surface. The number of the supporting rods is two, and the two supporting rods are respectively located on opposite sides of the supporting rod. The supporting rod is sleeved on the first supporting piece.

43. The telescoping foot according to claim 41, wherein, The second supporting piece further comprises a foot pad, the supporting rod is connected with the foot pad, and when the telescopic supporting leg is in a supporting state, the foot pad is supported on a supporting surface.

44. A telescoping foot according to claim 43, wherein The supporting rod is integrally connected with the foot pad, or the supporting rod is detachably connected with the foot pad.

45. The telescoping foot according to Claim 43, wherein, The supporting rod is rotatably connected with the foot pad, riveted, clamped or magnetically connected with the foot pad.

46. The retracting footing according to claim 41, wherein, The rod part comprises a rod main body segment and a mounting rod segment connected with each other, the protruding part has a containing groove and a first opening, the first opening is communicated with the containing groove, the containing groove is matched with the mounting rod segment, and the mounting rod segment is assembled with the containing groove through the first opening.

47. The telescoping foot according to Claim 41, wherein: The first supporting piece is provided with a second mounting opening, the supporting rod comprises a rod part and a protruding part, and the protruding part is configured to be mounted on the rod part through the second mounting opening after the rod part is mounted with the first sliding groove.

48. A telescoping foot, comprising: The telescopic supporting leg is one of the legs of a multi-leg support, The telescopic supporting leg comprises a first supporting piece and a second supporting piece, The first supporting piece is provided with at least one first sliding groove and at least one first mounting opening, the at least one first mounting opening corresponds to the at least one first sliding groove respectively, the first mounting opening is communicated with the corresponding first sliding groove, The second support includes at least one support rod and a foot, the at least one support rod corresponds to the at least one first sliding slot respectively, the first end of the support rod is inserted into the corresponding first sliding slot through the corresponding first mounting opening so that the support rod is slidingly mounted in the first sliding slot, the support rod is slidable relative to the first sliding slot to change the length of the telescopic foot, the first end of the support rod is extended from the first sliding slot so that the support rod is screw-connected with the foot, the first end of the support rod is gradually away from the first support during the extension of the telescopic foot; The support rod is provided with a first adjusting part configured to be cooperated with an adjusting member, the adjusting member has a second adjusting part matched with the first adjusting part, the adjusting member is cooperated with the first adjusting part through the first mounting opening and is rotated, the adjusting member is rotated to rotate the support rod so that the support rod is fastened or loosened with the foot; When the telescopic foot is in a supporting state, the foot is supported on a supporting surface, and the support rod is positioned on the first support.

49. The telescoping foot according to claim 48, wherein, The first adjusting part is a first adjusting slot, and the second adjusting part is a second adjusting protrusion.

50. The telescoping foot according to claim 49, wherein, The first adjusting slot is a plum blossom slot, and the second adjusting protrusion is a plum blossom protrusion. Alternatively, the first adjusting slot is a straight slot, and the second adjusting protrusion is a straight protrusion. Alternatively, the first adjusting slot is a cross slot, and the second adjusting protrusion is a cross protrusion. Alternatively, the first adjusting slot is a polygonal slot, and the second adjusting protrusion is a polygonal protrusion. Alternatively, the first adjusting slot is a semicircular slot, and the second adjusting protrusion is a semicircular protrusion. Alternatively, the first adjusting slot is an elliptical slot, and the second adjusting protrusion is an elliptical protrusion.

51. The telescoping foot according to claim 49, wherein, The first adjusting slot is a columnar slot, and the second adjusting protrusion is a columnar protrusion. Alternatively, the first adjusting slot is a table-shaped slot, and the second adjusting protrusion is a table-shaped protrusion. Alternatively, the first adjusting slot is a tapered slot, and the second adjusting protrusion is a tapered protrusion.

52. The telescoping foot according to claim 48, wherein, The first adjusting part is a first adjusting protrusion, and the second adjusting part is a second adjusting slot.

53. The telescoping foot according to claim 52, wherein, The first adjusting protrusion is a plum blossom protrusion, and the second adjusting slot is a plum blossom slot. Alternatively, the first adjusting protrusion is a straight protrusion, and the second adjusting slot is a straight slot. Alternatively, the first adjusting protrusion is a cross protrusion, and the second adjusting slot is a cross slot. Alternatively, the first adjusting protrusion is a polygonal protrusion, and the second adjusting slot is a polygonal slot. Alternatively, the first adjusting protrusion is a semicircular protrusion, and the second adjusting slot is a semicircular slot. Alternatively, the first adjusting protrusion is an elliptical protrusion, and the second adjusting slot is an elliptical slot.

54. The telescopic foot according to claim 52, wherein The first adjusting protrusion is a columnar protrusion, and the second adjusting slot is a columnar slot. Alternatively, the first adjusting protrusion is a table-shaped protrusion, and the second adjusting slot is a table-shaped slot. Alternatively, the first adjusting protrusion is a tapered protrusion, and the second adjusting slot is a tapered slot.

55. The telescoping foot according to Claim 48, wherein, The foot pad is provided with a first threaded hole, and the support rod is provided with an external thread at one end close to the foot pad, the external thread being matched with the first threaded hole. Alternatively, the first foot pad is provided with a first threaded column, and the support rod is provided with a second threaded hole, the first threaded column being matched with the second threaded hole.

56. The telescoping foot according to Claim 48, wherein, The first support member is provided with a first clamping portion, and the foot pad is provided with a second clamping portion; when the telescopic leg is contracted to the shortest state, the first clamping portion is clamped in the second clamping portion. The first support member has a first approaching edge, and the foot pad has a second approaching edge; when the telescopic leg is contracted to the shortest state, the first approaching edge is aligned with the second approaching edge.

57. The telescoping foot according to Claim 49, wherein, The support rod comprises a rod portion and a protruding portion, the protruding portion being protruded from the rod portion, the rod portion being rotatably connected with the foot pad, and the first adjusting portion being arranged on the protruding portion. The first sliding groove is provided with a first limiting wall, and the protruding portion is configured to abut against the first limiting wall when the telescopic leg is elongated to the longest state. The first support member has a first positioning protruding portion, and the protruding portion abuts against or slides through the first positioning protruding portion when the support rod slides relative to the first sliding groove; the protruding portion abutting against the first positioning protruding portion can make the support rod be positioned on the first support member when the telescopic leg is in the supporting state.

58. The telescopic leg according to claim 48, wherein The first support member has a second side opposite to a first side, and the second side is closer to the support surface relative to the first side when the telescopic leg is in the supporting state; the first mounting opening is arranged on the second side of the first support member.

59. The telescoping foot according to Claim 48, wherein, The support rod comprises a rod portion and a protruding portion, the protruding portion being protruded from the rod portion; The first sliding groove is provided with a first limiting wall, the first limiting wall being located between the protruding portion and a first end of the rod portion; when the telescopic leg is elongated to the longest state, the protruding portion abuts against the first limiting wall; during the process of elongating the telescopic leg, the first end of the rod portion is gradually away from the first support member.

60. The telescoping foot according to Claim 59, wherein, The first sliding groove comprises a first sliding sub-groove and a second sliding sub-groove, the first sliding sub-groove being communicated with the second sliding sub-groove. The first sliding sub-groove is adapted to the protruding portion of the support rod, and the second sliding sub-groove is adapted to the rod portion of the support rod.

61. The telescoping foot according to claim 60, wherein, The first limiting wall is located in the first sliding sub-groove, and the first limiting wall is located at the joint of the first sliding sub-groove and the second sliding sub-groove.

62. The telescoping foot according to claim 61, wherein, A first projection plane is perpendicular to the extension direction of the first sliding groove, and the projection of the first sliding sub-groove on the first projection plane contains the projection of the second sliding sub-groove on the first projection plane.

63. The telescoping foot according to Claim 59, wherein, The first limiting wall is a curved surface or a plane.

64. The telescoping foot according to Claim 63, wherein, The first limiting wall is a plane, and the first limiting wall is perpendicular to the extension direction of the first sliding groove.

65. The retracting footing of claim 59 wherein, The first support member has a first positioning protrusion, and the support rod has a second positioning protrusion, which can abut against or slide through the first positioning protrusion when the support rod slides relative to the first sliding groove, and the second positioning protrusion abuts against the first positioning protrusion when the telescopic leg is in the supporting state to position the support rod on the second support member.

66. The retracting footing of claim 62 wherein, The second positioning protrusion is the protruding portion.

67. The telescoping foot according to Claim 59, wherein, The number of the support rods is two, and the number of the first sliding grooves is two, and the two first sliding grooves are respectively located on opposite sides of the first support member.

68. The telescoping foot according to Claim 59, wherein, The second support member is supported on a support surface when the telescopic leg is in the supporting state.

69. A telescoping foot, comprising: The telescopic leg is one of the legs of a multi-leg support, The telescopic leg comprises a first support member and a second support member, The first support member is provided with at least one first sliding groove, The second support member comprises at least one support rod, and the at least one support rod corresponds to the at least one first sliding groove, respectively, and the support rod is slidingly installed in the corresponding first sliding groove to change the length of the telescopic leg; The support rod comprises a rod portion and a second positioning protrusion, and the second positioning protrusion is protruded on the rod portion; The first support member has a first positioning protrusion, and the support rod has a second positioning protrusion, which can abut against or slide through the first positioning protrusion when the support rod slides relative to the first sliding groove, and the second positioning protrusion abuts against the first positioning protrusion when the telescopic leg is in the supporting state to position the support rod on the second support member. The first support member has at least one first avoiding space, and the at least first avoiding space corresponds to the at least one first sliding groove, respectively, and the first avoiding space is configured as a deformation space of the support rod when the second positioning protrusion slides through the first positioning protrusion.

70. The telescoping foot according to Claim 69, wherein, The second support member is supported on a support surface when the telescopic leg is in the supporting state.

71. The retractable foot according to Claim 69, wherein, The first positioning protrusion has two opposite first side walls, and the distance between the two first side walls narrows from the bottom end of the first positioning protrusion to the top end of the first positioning protrusion.

72. The telescoping foot according to claim 71, wherein, The first side wall and the top end of the first positioning protrusion are gradually transitioned.

73. The retracting footing of claim 69 wherein, The first sliding groove comprises a second sliding sub-groove, The second sliding sub-groove is adapted to the rod portion of the support rod; The second sliding sub-groove wraps around the rod portion; The first cross section is perpendicular to the telescopic direction of the telescopic leg, and the first avoiding space and the second sliding sub-groove are respectively located on opposite sides of the first cross section, and the first avoiding space extends to the first cross section, and the second sliding sub-groove extends to the first cross section; The second cross section is perpendicular to the telescopic direction of the telescopic leg, and the second positioning protrusion and the second sliding sub-groove are respectively located on opposite sides of the second cross section, and the second positioning protrusion extends to the second cross section; The first positioning protrusion has a bending thickness along the thickness direction of the rod portion, the maximum thickness of the first positioning protrusion is 5%-15% of the bending thickness of the rod portion, and the distance from the first section to the second section is greater than or equal to one time of the bending thickness of the rod portion when the second positioning protrusion slides through the first positioning protrusion.

74. The telescoping foot according to claim 73, wherein, The maximum thickness of the first positioning protrusion is 5%, 8%, 10%, 12%, or 15% of the bending thickness of the rod portion. The distance from the second section to the first section is greater than or equal to two times of the bending thickness of the rod portion when the second positioning protrusion slides through the first positioning protrusion.

75. The telescopic leg according to claim 69, wherein The second sliding sub-groove is adapted to the rod portion of the support rod. The second sliding sub-groove surrounds the rod portion. The first section is perpendicular to the telescopic direction of the telescopic leg, the first avoiding space and the second sliding sub-groove are located on opposite sides of the first section respectively, the first avoiding space extends to the first section, and the second sliding sub-groove extends to the first section. A third section is perpendicular to the telescopic direction of the telescopic leg, the first positioning protrusion extends to the third section, and the first positioning protrusion and the second sliding sub-groove are located on opposite sides of the third section respectively. The first positioning protrusion has a bending thickness along the thickness direction of the rod portion, the maximum thickness of the first positioning protrusion is 5%-15% of the bending thickness of the rod portion, and the distance from the first section to the third section is greater than or equal to one time of the bending thickness of the rod portion.

76. The telescoping foot according to claim 75, wherein, The maximum thickness of the first positioning protrusion is 5%, 8%, 10%, 12%, or 15% of the average diameter of the rod portion.

77. The telescopic leg according to claim 69, wherein The second sliding sub-groove is adapted to the rod portion of the support rod. The second sliding sub-groove surrounds the rod portion. The first section is perpendicular to the telescopic direction of the telescopic leg, the first avoiding space and the second sliding sub-groove are located on opposite sides of the first section respectively, the first avoiding space extends to the first section, and the second sliding sub-groove extends to the first section. A third section is perpendicular to the telescopic direction of the telescopic leg, the first positioning protrusion extends to the third section, and the first positioning protrusion and the second sliding sub-groove are located on opposite sides of the third section respectively. The maximum thickness of the first positioning protrusion is 5%-15% of the average diameter of the rod portion, and the distance from the first section to the third section is greater than or equal to one time of the average diameter of the rod portion.

78. The telescoping foot according to claim 77, wherein, The maximum thickness of the first positioning protrusion is 5%, 8%, 10%, 12%, or 15% of the average diameter of the rod portion. The distance from the first section to the third section is greater than or equal to two times of the average diameter of the rod portion. The rod portion is in a cylindrical shape, and the average diameter of the rod portion is the diameter of the rod portion.

79. The telescoping foot according to Claim 69, wherein, The first sliding groove comprises a second sliding sub-groove, The second sliding sub-groove is adapted to the rod portion of the supporting rod; The second sliding sub-groove surrounds the rod portion; The first cross section is perpendicular to the telescopic direction of the telescopic leg, the first avoiding space and the second sliding sub-groove are respectively located on opposite sides of the first cross section, and the second sliding sub-groove extends to the first cross section; The first rod segment of the rod portion is from the second positioning protrusion to the first cross section; When the second positioning protrusion passes through the first positioning protrusion, the first rod segment is exposed from the second sliding sub-groove.

80. A telescoping foot according to any of claims 73-79, wherein, The first sliding groove is provided with a first limiting wall, the first limiting wall is located outside the second sliding sub-groove, and the first limiting wall is configured to abut against the second positioning protrusion when the telescopic leg is longest. The first limiting wall and the first positioning protrusion are adapted to the second positioning protrusion, and the clamping space is used for clamping the second positioning protrusion.

81. The telescoping foot according to claim 80, wherein, The first sliding groove is provided with a first protruding strip, one end of the first protruding strip is provided with the first limiting wall, and the other end extends to one end of the second sliding sub-groove. The first limiting wall is a plane, and the first limiting wall is perpendicular to the extension direction of the first sliding groove.

82. The telescoping foot according to Claim 69, wherein, The first sliding groove is provided with a first limiting wall, and the first limiting wall is configured to abut against the second positioning protrusion when the telescopic leg is longest. The first limiting wall and the first positioning protrusion are adapted to the second positioning protrusion, and the clamping space is used for clamping the second positioning protrusion.

83. The retracting footing of claim 69 wherein, The supporting rod comprises a rod portion and a protruding portion, and the protruding portion is protruded on the rod portion; The first sliding groove is provided with a first limiting wall, the first limiting wall is located between the protruding portion and the first end of the rod portion, the protruding portion abuts against the first limiting wall when the telescopic leg is elongated to the longest state, and the first end of the rod portion gradually moves away from the first supporting piece in the process of elongating the telescopic leg.

84. The telescoping foot according to claim 83, wherein, The first sliding groove comprises a first sliding sub-groove and a second sliding sub-groove, and the first sliding sub-groove is communicated with the second sliding sub-groove. The first sliding sub-groove is adapted to the protruding portion of the supporting rod, and the second sliding sub-groove is adapted to the rod portion of the supporting rod.

85. The telescoping foot according to claim 84, wherein, The first limiting wall is located in the first sliding sub-groove, and the first limiting wall is located at the joint of the first sliding sub-groove and the second sliding sub-groove.

86. The telescoping foot according to claim 85, wherein, A first projection plane is perpendicular to the extension direction of the first sliding groove, and the projection of the first sliding sub-groove on the first projection plane contains the projection of the second sliding sub-groove on the first projection plane.

87. The telescoping foot according to Claim 83, wherein, The first limiting wall is a curved surface or a plane.

88. The telescoping foot according to claim 87, wherein, The first limiting wall is a plane, and the first limiting wall is perpendicular to the extension direction of the first sliding groove.

89. The retractable foot according to Claim 83, wherein, The first supporting piece has a first positioning protrusion, the supporting rod has a second positioning protrusion, the second positioning protrusion can abut against or slide through the first positioning protrusion when the supporting rod slides relative to the first sliding groove, and the second positioning protrusion abuts against the first positioning protrusion to position the supporting rod on the second supporting piece when the telescopic leg is in the supporting state.

90. The retractable foot according to claim 86, wherein, The second positioning protrusion is the protrusion part.

91. The retractable foot according to Claim 69, wherein, The number of the supporting rods is two, and the number of the first sliding grooves is two.

92. The retractable foot according to claim 83, wherein, The second supporting part is supported on a supporting surface when the telescopic supporting leg is in a supporting state.

93. The telescoping foot according to Claim 69, wherein, The second supporting part further comprises a foot pad, which is mounted on the supporting rod and is configured to be supported on the supporting surface when the telescopic supporting leg is in the supporting state.

94. The telescoping foot according to claim 93, wherein, The foot pad is detachably connected with the supporting rod.

95. The telescoping foot according to claim 94, wherein, The supporting rod is screw-connected, riveted, clamped or magnetically connected with the foot pad.

96. The telescoping foot according to Claim 93, wherein, The first end of the supporting rod is capable of extending out of the first sliding groove to screw-connect the supporting rod with the foot pad, and the first end of the supporting rod is gradually away from the first supporting part during the extension of the telescopic supporting leg. The supporting rod is provided with a first adjusting part, which is configured to be cooperated with an adjusting part, the adjusting part is provided with a second adjusting part which is adapted to the first adjusting part, the adjusting part is capable of being cooperated with the first adjusting part through the first mounting opening and being rotated, and the adjusting part is capable of driving the supporting rod to rotate to fasten or loosen the supporting rod with the foot pad when the adjusting part is rotated.

97. The telescopic supporting leg according to claim 96, wherein, The first adjusting part is a first adjusting groove, and the second adjusting part is a second adjusting protrusion. The first adjusting groove is a key-shaped groove, and the second adjusting protrusion is a key-shaped protrusion, or the first adjusting groove is a straight slot, and the second adjusting protrusion is a straight protrusion, or the first adjusting groove is a cross-shaped groove, and the second adjusting protrusion is a cross-shaped protrusion, or the first adjusting groove is a polygonal groove, and the second adjusting protrusion is a polygonal protrusion, or the first adjusting groove is a semicircular groove, and the second adjusting protrusion is a semicircular protrusion, or the first adjusting groove is an elliptical groove, and the second adjusting protrusion is an elliptical protrusion. The first adjusting groove is a columnar groove, and the second adjusting protrusion is a columnar protrusion, or the first adjusting groove is a table-shaped groove, and the second adjusting protrusion is a table-shaped protrusion, or the first adjusting groove is a taper-shaped groove, and the second adjusting protrusion is a taper-shaped protrusion.

98. The telescoping foot according to claim 96, wherein, The first adjusting part is a first adjusting protrusion, and the second adjusting part is a second adjusting groove. The first adjusting protrusion is a key-shaped protrusion, and the second adjusting groove is a key-shaped groove, or the first adjusting protrusion is a straight protrusion, and the second adjusting groove is a straight slot, or the first adjusting protrusion is a cross-shaped protrusion, and the second adjusting groove is a cross-shaped groove, or the first adjusting protrusion is a polygonal protrusion, and the second adjusting groove is a polygonal groove, or the first adjusting protrusion is a semicircular protrusion, and the second adjusting groove is a semicircular groove, or the first adjusting protrusion is an elliptical protrusion, and the second adjusting groove is an elliptical groove. The first adjusting protrusion is a columnar protrusion, and the second adjusting groove is a columnar groove, or the first adjusting protrusion is a table-shaped protrusion, and the second adjusting groove is a table-shaped groove, or the first adjusting protrusion is a taper-shaped protrusion, and the second adjusting groove is a taper-shaped groove.

99. The retractable foot according to claim 96, wherein, The first support member is provided with a first clamping portion, and the foot pad is provided with a second clamping portion; when the telescopic leg is contracted to the shortest state, the first clamping portion is clamped in the second clamping portion; The first support member has a first approaching edge, and the foot pad has a second approaching edge; when the telescopic leg is contracted to the shortest state, the first approaching edge is aligned with the second approaching edge.

100. The telescoping foot according to claim 96, wherein, The support rod comprises a rod portion and a protruding portion, the protruding portion is protruded from the rod portion, the rod portion is screw-connected with the foot pad, and the first adjusting portion is arranged on the protruding portion; The first sliding groove is provided with a first limiting wall, and the protruding portion is configured to abut against the first limiting wall when the telescopic leg is elongated to the longest state; The first support member has a first positioning protrusion, and the protruding portion abuts against or slides through the first positioning protrusion when the support rod slides relative to the first sliding groove; when the telescopic leg is in the supporting state, the abutment between the protruding portion and the first positioning protrusion can make the support rod be positioned on the first support member.

101. The retractable foot according to claim 96, wherein, The first support member has a second side surface and a first side surface opposite to each other, and the second side surface is closer to the supporting surface relative to the first side surface when the telescopic leg is in the supporting state; the first mounting opening is arranged on the second side surface of the first support member.

102. The telescoping foot according to Claim 96, wherein, The foot pad is provided with a first threaded hole, one end of the support rod close to the foot pad is provided with an external thread, and the external thread is matched with the first threaded hole; or the first foot pad is provided with a first threaded column, and the support rod is provided with a second threaded hole, and the first threaded column is matched with the second threaded hole.

103. A telescoping foot characterized by, The telescopic leg is one of the plurality of legs of the multi-leg support, The telescopic leg comprises a first support member and a second support member, The first support member is provided with at least one first sliding groove and at least one first mounting opening, and the at least one first mounting opening is respectively corresponding to the at least one first sliding groove; the first mounting opening is in communication with the corresponding first sliding groove; The second support member comprises at least one support rod, and the at least one support rod is respectively corresponding to the at least one first sliding groove; the support rod has a first end and a second end opposite to each other; the second end of the support rod can be inserted into the corresponding first sliding groove through the corresponding first mounting opening, so that the support rod is slidingly mounted in the first sliding groove; during the elongation of the telescopic leg, the first end of the support rod is gradually away from the first support member; The support rod can change the length of the telescopic leg relative to the first sliding groove; The support rod is configured to be positioned on the first support member when the telescopic leg is in the supporting state.

104. The telescoping foot according to claim 103, wherein, The first support member is provided with at least one second mounting opening, and the at least one second mounting opening is respectively corresponding to the at least one first sliding groove; the second mounting opening is in communication with the corresponding first sliding groove, The support rod comprises a rod portion and a protruding portion which is detachably mounted on the rod portion; the second end of the rod portion can be inserted into the first sliding groove through the corresponding first mounting opening; and the protruding portion is configured to be mounted on the rod portion through the second mounting opening after the rod portion is mounted in the first sliding groove.

105. The telescoping foot according to claim 104, wherein, The first sliding groove is provided with a first limiting wall, and the protruding part is configured to abut against the first limiting wall when the telescopic leg is extended to the longest state.

106. The telescoping foot according to Claim 104, wherein, The protruding part is configured to be detachably mounted on the rod part through the second mounting opening after the rod part is inserted into the first sliding groove, the rod part comprises a rod main body segment and a mounting rod segment connected with each other, the protruding part has a containing groove and a first opening, the first opening is communicated with the containing groove, the containing groove is matched with the mounting rod segment, and the mounting rod segment is assembled with the first opening and the containing groove.

107. The telescoping foot according to claim 106, wherein, The containing groove is a cylindrical groove, the mounting rod segment is a cylinder, and the width of the first opening is less than or equal to the diameter of the clamping part.

108. The telescoping foot according to Claim 106, wherein, The rod part has two clamping walls, the protruding part is located between the two clamping walls, and the two clamping walls are configured to clamp the protruding part therebetween when the telescopic leg is extended or retracted. A second projection plane is perpendicular to the extension direction of the rod part, and the projection of the rod main body segment on the second projection plane contains the projection of the mounting rod segment on the second projection plane. Both ends of the mounting rod segment are connected with the rod main body segment, and the two clamping walls are respectively located at the two connecting positions of the rod main body segment and the mounting rod segment.

109. The telescoping foot according to Claim 106, wherein, The first sliding groove comprises a first sliding sub-groove and a second sliding sub-groove communicated with the first sliding sub-groove, and the first sliding sub-groove is used for sliding the protruding part. The first sliding sub-groove has a first sliding wall, the protruding part has a second sliding wall matched with the first sliding wall, the second sliding sub-groove is matched with the rod part when the telescopic leg is extended or retracted. The second sliding wall is configured to slide along the first sliding wall when the telescopic leg is extended or retracted.

110. The telescoping foot according to claim 109, wherein, The first sliding groove is provided with a first limiting wall, and the protruding part is configured to abut against the first limiting wall when the telescopic leg is extended to the longest state. The first limiting wall is located at the connecting position of the first sliding sub-groove and the second sliding sub-groove.

111. The telescoping foot according to Claim 104, wherein, The second support member further comprises a foot pad, and the foot pad is non-detachably connected with the support rod, or the foot pad is detachably connected with the support rod. The foot pad is configured to be supported on a support surface when the telescopic leg is in a supporting state.

112. The telescoping foot according to claim 111, wherein, The foot pad is integrally connected with the support rod.

113. The telescoping foot according to claim 104, wherein, The number of the support rods is two, and the two support rods are respectively located at opposite sides of the first support member.

114. The telescoping foot according to Claim 104, wherein, The second support member is configured to be supported on a support surface when the telescopic leg is in a supporting state, the first support member has opposite second and first sides, the second side is closer to the support surface relative to the first side when the telescopic leg is in the supporting state, and the second mounting opening is arranged on the second side of the first support member.

115. The telescoping foot according to claim 104, wherein, The first mounting opening is arranged on the first end of the first support member, and the support rod extends out of the first end of the first support member when the telescopic leg is extended.

116. A telescoping foot, comprising: The telescopic leg is one of the legs of a multi-leg support, The telescopic leg comprises a first support member and a second support member, The first support member is provided with at least one first sliding groove, The second support member comprises at least one support rod corresponding to the at least one first sliding groove, the support rod being slidingly installed in the corresponding first sliding groove to change the length of the telescopic leg; The support rod is positioned in the first support member when the telescopic leg is in the supporting state; The support rod comprises a rod portion and a protruding portion protruding from the rod portion; The first sliding groove is provided with a first limiting wall between the protruding portion and a first end of the rod portion, the protruding portion abutting against the first limiting wall when the telescopic leg is in the longest state, and the first end of the rod portion gradually moves away from the first support member during the extension of the telescopic leg.

117. The telescopic leg according to claim 116, wherein The first sliding groove comprises a first sliding sub-groove and a second sliding sub-groove, and the first sliding sub-groove communicates with the second sliding sub-groove; The first sliding sub-groove is adapted to the protruding portion of the support rod, and the second sliding sub-groove is adapted to the rod portion of the support rod.

118. The telescoping foot according to claim 117, wherein, The first limiting wall is located in the first sliding sub-groove at the joint of the first sliding sub-groove and the second sliding sub-groove.

119. The telescoping foot according to claim 118, wherein, A first projection plane is perpendicular to the extension direction of the first sliding groove, and the projection of the first sliding sub-groove on the first projection plane contains the projection of the second sliding sub-groove on the first projection plane.

120. The telescoping foot according to Claim 116, wherein, The first limiting wall is a curved surface or a plane.

121. The telescoping foot according to claim 120, wherein, The first limiting wall is a plane, and the first limiting wall is perpendicular to the extension direction of the first sliding groove.

122. The telescoping foot according to Claim 116, wherein, The first support member has a first positioning protrusion, and the support rod has a second positioning protrusion, the second positioning protrusion abutting against or sliding through the first positioning protrusion when the support rod slides relative to the first sliding groove, and the second positioning protrusion abutting against the first positioning protrusion allows the support rod to be positioned in the second support member when the telescopic leg is in the supporting state.

123. The telescoping foot according to claim 119, wherein, The second positioning protrusion is the protruding portion.

124. The telescoping foot according to Claim 116, wherein, The number of the support rods is two, and the number of the first sliding grooves is two, and the two first sliding grooves are respectively located on opposite sides of the first support member.

125. The retractable foot according to claim 116, wherein: The second support member is supported on a support surface when the telescopic leg is in the supporting state.

126. The telescoping foot according to Claim 116, wherein, The support rod comprises a rod portion and a protruding portion detachably installed on the rod portion, The first sliding groove is provided with a first limiting wall, and the protruding portion is configured to abut against the first limiting wall when the telescopic leg is in the longest state.

127. The telescoping foot according to claim 126, wherein, When the telescopic leg is in the supporting state, the second support member is supported on a support surface, or the first support member is supported on a support surface.

128. The telescoping foot according to Claim 126, wherein, The number of the support rods is two.

129. The telescoping foot according to claim 128, wherein, The two support rods are respectively located on opposite sides of the support rod.

130. The telescoping foot according to Claim 126, wherein, The support rod is sleeved on the first support member.

131. The telescoping foot according to Claim 126, wherein, The second support member further comprises a foot pad, and the support rod is connected with the foot pad, the foot pad being supported on a support surface when the telescopic leg is in the supporting state.

132. The telescoping foot according to claim 131, wherein, The support rod is integrally connected with the foot pad, or the support rod is detachably connected with the foot pad.

133. The telescoping foot according to claim 131, wherein, The support rod is connected with the foot pad in a screw-in, riveting, clamping or magnetic connection mode.

134. The telescoping foot according to Claim 126, wherein, The rod portion comprises a rod body segment and a mounting rod segment connected with each other, the protruding portion has a receiving groove and a first opening, the first opening is communicated with the receiving groove, the receiving groove is matched with the mounting rod segment, and the mounting rod segment is assembled with the receiving groove through the first opening.

135. A telescoping foot characterized by, The telescopic support is one of the supports of the multi-support support, The telescopic support comprises a first support member and a second support member, The second support member comprises at least one support rod, and the support rod is slidable relative to the first support member to change the length of the telescopic support; When the telescopic support is in the supporting state, the support rod can be positioned on the first support member; The support rod comprises a rod portion and a protruding portion detachably mounted on the rod portion, The first sliding groove is provided with a first limiting wall, and the protruding portion is configured to abut against the first limiting wall when the telescopic support is elongated to the longest state.

136. The telescoping foot according to claim 135, wherein, When the telescopic support is in the supporting state, the second support member is supported on a support surface, or the first support member is supported on a support surface.

137. The telescoping foot according to Claim 135, wherein, The number of the support rods is two.

138. The telescoping foot according to claim 137, wherein, The two support rods are respectively located on opposite sides of the support rod.

139. The telescoping foot according to Claim 134, wherein, The support rod is sleeved on the first support member.

140. The telescoping foot according to Claim 135, wherein, The second support member further comprises a foot pad, and the support rod is connected with the foot pad, and when the telescopic support is in the supporting state, the foot pad is supported on a support surface.

141. The telescoping foot according to claim 140, wherein, The support rod is integrally connected with the foot pad, or the support rod is detachably connected with the foot pad.

142. The telescoping foot according to claim 140, wherein, The support rod is connected with the foot pad in a screw-in, riveting, clamping or magnetic connection mode.

143. The telescoping foot according to Claim 135, wherein, The rod portion comprises a rod body segment and a mounting rod segment connected with each other, the protruding portion has a receiving groove and a first opening, the first opening is communicated with the receiving groove, the receiving groove is matched with the mounting rod segment, and the mounting rod segment is assembled with the receiving groove through the first opening.

144. A telescoping foot, comprising: The telescopic support is one of the supports of the multi-support support, The telescopic support comprises a first support member and a second support member, The second support member comprises at least one support rod, and the support rod is slidable relative to the first support member to change the length of the telescopic support; When the telescopic support is in the supporting state, the support rod can be positioned on the first support member.

145. The telescoping foot according to claim 144, wherein, When the telescopic support is in the supporting state, the second support member is supported on a support surface, or the first support member is supported on a support surface.

146. The telescoping foot according to claim 145, wherein, The number of the support rods is two.

147. The telescoping foot according to claim 146, wherein, The two support rods are respectively located on opposite sides of the support rod.

148. The telescoping foot according to claim 144, wherein, The support rod is sleeved on the first support member.

149. A telescoping foot, comprising: The telescopic support is one of the supports of the multi-support support, The telescopic support comprises a first support member and a second support member, The first support member is provided with at least one first sliding groove, The second support member comprises at least one support rod and a foot pad, the at least one support rod corresponds to the at least one first sliding groove respectively, the support rod is slidingly mounted in the corresponding first sliding groove to change the length of the telescopic support; The support rod is connected with the foot pad, and the foot pad supports a supporting surface when the telescopic foot is in a supporting state, and the support rod is positioned on the first supporting member.

150. The telescoping foot according to claim 149, wherein, The support rod is non-detachably connected with the foot pad.

151. The telescoping foot according to claim 150, wherein, The support rod is integrally connected with the foot pad.

152. The telescoping foot according to claim 149, wherein, The support rod is detachably connected with the foot pad.

153. The telescoping foot according to claim 152, wherein, The support rod is screw-connected, riveted, clamped or magnetically connected with the foot pad.

154. The telescoping foot according to Claim 149, wherein, The first supporting member has a first approaching edge, and the foot pad has a second approaching edge, and the first approaching edge is aligned with the second approaching edge when the telescopic foot is in a shortest state.

155. The telescoping foot according to Claim 149, wherein, The first supporting member has a first outer side, and the foot pad has a second outer side, and the first outer side is aligned with the second outer side when the telescopic foot is in a shortest state.

156. The telescoping foot according to Claim 148, wherein, The first supporting member has a first end surface, and the foot pad has a second end surface, and the first end surface is adapted to the second end surface, and the first end surface is close to or close to the second end surface when the telescopic foot is in a shortest state.

157. A telescoping foot, comprising: The telescopic foot is one of the plurality of feet of the multi-foot support, The telescopic foot comprises a first supporting member and a second supporting member, The second supporting member comprises at least one support rod, and the support rod is slidable relative to the first supporting member to change the length of the telescopic foot. The support rod is positioned on the first supporting member when the telescopic foot is in a supporting state. The first supporting member is provided with a second mounting opening, The support rod comprises a rod portion and a protruding portion, and the protruding portion is configured to be mounted on the rod portion through the second mounting opening after the rod portion is mounted on the first sliding groove. The first sliding groove is provided with a first limiting wall, and the protruding portion is configured to abut against the first limiting wall when the telescopic foot is in a longest state.

158. A telescoping foot, comprising: The telescopic foot is one of the plurality of feet of the multi-foot support, The telescopic foot comprises a first supporting member and a second supporting member, The second supporting member comprises at least one support rod, and the support rod is slidable relative to the first supporting member to change the length of the telescopic foot. The support rod is positioned on the first supporting member when the telescopic foot is in a supporting state. The second supporting member further comprises a foot pad, and the foot pad is mounted on the support rod, and the foot pad is configured to support the supporting surface when the telescopic foot is in a supporting state.

159. The telescoping foot according to claim 158, wherein, The foot pad is detachably connected with the support rod.

160. The telescoping foot according to claim 159, wherein, The support rod is screw-connected, riveted, clamped or magnetically connected with the foot pad.

161. The telescoping foot according to Claim 158, wherein, The foot pad is non-detachably connected with the support rod.

162. The telescoping foot according to claim 161, wherein, The foot pad is integrally connected with the support rod.

163. A multi-legged support characterized by, The multi-foot support comprises a supporting rod and at least three feet, the supporting rod is used for supporting an electrical body, and the at least three feet are used for supporting the supporting rod. At least one of the at least three feet is a telescopic foot according to any one of claims 1-162.

164. The multi-legged support according to claim 163, wherein, The multi-foot support further comprises a first mounting portion and at least one first connecting rod, the at least one first connecting rod is respectively corresponding to the at least one telescopic foot, The first mounting portion is slidingly mounted on the supporting rod; One end of the first connecting rod is rotatably connected with the first supporting member of the telescopic foot, and the other end is rotatably connected with the supporting rod; The first support member of the telescopic leg is rotationally connected with the first mounting portion; An included angle between the telescopic leg and the support rod changes when the first mounting portion slides along the support rod.

165. The multi-legged support according to claim 164, wherein, The first support member is provided with a first receiving cavity, and the telescopic leg is capable of being received in the support rod; the first connecting rod is received in the first receiving cavity when the first support member of the telescopic leg is received in the support rod.

166. The multi-legged support according to claim 163, wherein, The at least three legs are all telescopic legs, and the at least three telescopic legs form a first columnar structure when the at least three telescopic legs are all received in the support rod.

167. The multi-legged support according to claim 163, wherein, The second support member is configured to be supported on a support surface when the telescopic leg is in a supporting state; the first support member has a second side and a first side opposite to each other when the telescopic leg is in the supporting state; the second side is closer to the support surface relative to the first side when the telescopic leg is in the supporting state; and the first mounting opening is arranged on the second side of the first support member. The telescopic leg is capable of being received in the support rod; and the second side is closer to the support rod relative to the first side when the telescopic leg is received in the support rod.

168. The multi-legged support according to claim 163, wherein, The at least three legs are all telescopic legs, and the telescopic leg has a first side and a second side opposite to each other; Any two adjacent telescopic legs are a first telescopic leg and a second telescopic leg respectively; and the first side of the first telescopic leg is aligned with the second side of the second telescopic leg when the at least three telescopic legs are all received in the support rod.

169. The multi-legged support according to claim 163, wherein, The multi-leg support further comprises a first mounting portion and at least one first connecting rod; the at least three legs are used for supporting the support rod, The at least one first connecting rod corresponds to the at least one telescopic leg respectively, The first mounting portion is slidingly mounted on the support rod, One end of the first connecting rod is rotationally connected with the first support member of the telescopic leg, and the other end is rotationally connected with the support rod; The first support member is rotationally connected with the first mounting portion; An included angle between the telescopic leg and the support rod changes when the first mounting portion slides along the telescopic rod; The first support member is provided with a first receiving cavity, and the telescopic leg is capable of being received in the support rod; the first receiving cavity is configured to receive the first connecting rod when the first support member is received in the support rod; At least one of the at least one first sliding groove of the first support member is a close first sliding groove; The first receiving cavity is close to the close first sliding groove.

170. The multi-legged support according to claim 169, wherein, The number of the close first sliding grooves is one, and the one close first sliding groove is located on one side of the first receiving cavity; Alternatively, the number of the close first sliding grooves is two, and the two close first sliding grooves are respectively located on two sides of the first receiving cavity.

171. The multi-legged support according to claim 169, wherein, The first support member is further provided with at least one first mounting opening, the at least one first mounting opening corresponds to the at least one first sliding groove respectively, and the first mounting opening is in communication with the corresponding first sliding groove; The support rod is inserted into the corresponding first sliding slot through the corresponding first mounting opening.

172. The multi-legged support according to claim 171, wherein, The second support member is configured to support a support surface when the telescopic leg is in a supporting state, the first support member has opposite second and first sides, the second side is closer to the support surface relative to the first side when the telescopic leg is in the supporting state, the first mounting opening is arranged on the second side of the first support member, and the first receiving cavity is arranged on the second side of the first support member.

173. The multi-legged support according to claim 172, wherein, The at least three legs are telescopic legs, When the at least three telescopic legs are received in the support rod, the second side of the first support member of the at least three telescopic legs forms a first columnar surface.

174. The multi-legged support according to claim 163, wherein, The multi-leg support includes a first mounting portion and at least one first connecting rod, The at least one first connecting rod corresponds to the at least one telescopic leg respectively, the first mounting portion is slidingly mounted on the support rod, one end of the first connecting rod is rotationally connected to the first support member of the telescopic leg, and the other end is rotationally connected to the support rod; The first support member is rotationally connected to the first mounting portion; When the first mounting portion slides along the telescopic rod, the included angle between the telescopic leg and the support rod changes; The first support member is provided with a first receiving cavity, the telescopic leg is received in the support rod, and the first receiving cavity is configured to receive the first connecting rod when the first support member is received in the support rod; At least one of the at least one first sliding slot is a parallel first sliding slot; The extension direction of the first receiving cavity is parallel to the parallel first sliding slot.

175. The multi-leg support according to claim 174, wherein The number of the parallel first sliding slots is one, and the one parallel first sliding slot is located on one side of the first sliding slot; The number of the parallel first sliding slots is two, and the two parallel first sliding slots are respectively located on two sides of the first sliding slot.

176. The multi-leg support according to claim 174, wherein The number of the parallel first sliding slots is one, and the one parallel first sliding slot is located on one side of the first sliding slot; The number of the parallel first sliding slots is two, and the two parallel first sliding slots are respectively located on two sides of the first sliding slot.

177. The multi-legged support according to claim 174, wherein, The first support member is further provided with at least one first mounting opening, the at least one first mounting opening corresponds to the at least one first sliding slot respectively, and the first mounting opening is in communication with the corresponding first sliding slot; The first end of the support rod is inserted into the corresponding first sliding slot through the corresponding first mounting opening, so that the support rod is slidingly mounted in the first sliding slot, and the first end of the support rod gradually moves away from the first support member in the process of elongation of the telescopic leg.

178. The multi-legged support according to claim 177, wherein, The second support is configured to be supported on a support surface when the telescopic leg is in a supporting state, the first support has opposite second and first sides, the second side is closer to the support surface relative to the first side when the telescopic leg is in the supporting state, the first mounting opening is provided on the second side of the first support, and the first receiving cavity is provided on the second side of the first support.

179. The multi-legged support according to claim 178, wherein, The at least three legs are telescopic legs, When the at least three telescopic legs are all received in the support rod, the second side of the first support of the at least three telescopic legs forms a first columnar surface.

180. The multi-legged support according to Claim 163, wherein, A support rod is used to support an electrical body, and at least three legs are used to support the support rod, wherein the at least three legs are telescopic legs.

181. A multi-legged support characterized by, A support rod is used to support an electrical body, and at least three legs are used to support the support rod, wherein the at least three legs are telescopic legs. The telescopic leg comprises a first support and a second support, the first support is provided with at least one first sliding groove, The second support comprises at least one support rod, the at least one support rod corresponds to the at least one first sliding groove respectively, the support rod is slidingly installed in the first sliding groove, the support rod is slidable relative to the first support to change the length of the telescopic leg, and the support rod is configured to be positioned on the first support when the telescopic leg is in a supporting state. The at least one first connecting rod corresponds to the at least one telescopic leg respectively, The first mounting portion is slidingly installed on the support rod, One end of the first connecting rod is rotationally connected with the first support of the telescopic leg, and the other end is rotationally connected with the support rod; The first support is rotationally connected with the first mounting portion; When the first mounting portion slides along the telescopic rod, the included angle between the telescopic leg and the support rod changes; The first support is provided with a first receiving cavity, the telescopic leg is receivable in the support rod, and the first receiving cavity is configured to receive the first connecting rod when the first support is received in the support rod. At least one of the at least one first sliding groove is a close first sliding groove. The first receiving cavity is close to the close first sliding groove. The number of the close first sliding grooves is one, and the one close first sliding groove is located on one side of the first receiving cavity.

182. The multi-legged support according to claim 181, wherein, Alternatively, the number of the close first sliding grooves is two, and the two close first sliding grooves are respectively located on two sides of the first receiving cavity. The first support is further provided with at least one first mounting opening, the at least one first mounting opening corresponds to the at least one first sliding groove respectively, and the first mounting opening is in communication with the corresponding first sliding groove; 183. The multi-legged support according to claim 181, wherein, The support rod is insertably installed in the corresponding first sliding groove through the corresponding first mounting opening. ​ 184. The multi-legged support according to claim 183, wherein, The second support is configured to be supported on a support surface when the telescopic leg is in a supporting state, the first support has opposite second and first sides, the second side is closer to the support surface relative to the first side when the telescopic leg is in the supporting state, the first mounting opening is provided on the second side of the first support, and the first receiving cavity is provided on the second side of the first support.

185. The multi-legged support according to claim 184, wherein, The at least three legs are telescopic legs, When the at least three telescopic legs are all received in the support rod, the second side of the first support of the at least three telescopic legs forms a first columnar surface.

186. A multi-legged support characterized by, The support rod, the at least three legs, the first mounting portion and the at least one first connecting rod are provided, the at least three legs are used for supporting the support rod, the support rod is used for supporting an electrical body, At least one of the at least three legs is a telescopic leg, The telescopic leg comprises a first support and a second support, the first support is provided with at least one first sliding groove, The second support comprises at least one support rod, the at least one support rod corresponds to the at least one first sliding groove respectively, the support rod is slidingly installed in the first sliding groove, the support rod is slidable relative to the first support to change the length of the telescopic leg, and the support rod is configured to be positioned on the first support when the telescopic leg is in a supporting state; The at least one first connecting rod corresponds to the at least one telescopic leg respectively, The first mounting portion is slidingly installed on the support rod, One end of the first connecting rod is rotationally connected with the first support of the telescopic leg, and the other end is rotationally connected with the support rod; The first support is rotationally connected with the first mounting portion; When the first mounting portion slides along the telescopic rod, the included angle between the telescopic leg and the support rod changes; The first support is provided with a first receiving cavity, the telescopic leg is receivable in the support rod, and the first receiving cavity is configured to receive the first connecting rod when the first support is received in the support rod; At least one of the at least one first sliding groove is a parallel first sliding groove; The extension direction of the first receiving cavity is parallel to the parallel first sliding groove.

187. The multi-legged stand of claim 186, wherein The number of the parallel first sliding grooves is one, and the one parallel first sliding groove is located on one side of the first sliding groove; The number of the parallel first sliding grooves is two, and the two parallel first sliding grooves are respectively located on two sides of the first sliding groove.

188. The multi-legged stand of claim 186, wherein The number of the parallel first sliding grooves is one, and the one parallel first sliding groove is located on one side of the first sliding groove; The number of the parallel first sliding grooves is two, and the two parallel first sliding grooves are respectively located on two sides of the first sliding groove.

189. The multi-legged support according to claim 186, wherein, The first support is further provided with at least one first mounting opening, the at least one first mounting opening corresponds to the at least one first sliding groove respectively, and the first mounting opening is in communication with the corresponding first sliding groove. The first end of the support rod is insertable through the corresponding first mounting opening into the corresponding first sliding slot to allow the support rod to be slidingly mounted in the first sliding slot, and the first end of the support rod gradually moves away from the first support member during extension of the telescopic leg.

190. The multi-legged support according to claim 189, wherein, The second support member is configured to be supported on a support surface when the telescopic leg is in the supporting state, the first support member has opposite second and first sides, the second side is closer to the support surface relative to the first side when the telescopic leg is in the supporting state, the first mounting opening is provided on the second side of the first support member, and the first receiving cavity is provided on the second side of the first support member.

191. The multi-legged support according to claim 190, wherein, The at least three legs are telescopic legs, When the at least three telescopic legs are received in the support rod, the second sides of the first support members of the at least three telescopic legs form a first columnar surface.

192. A camera support, characterized by A photographing terminal and the multi-legged support of any one of claims 163-191, the support rod of the multi-legged support is used to support the photographing terminal.

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