Using method of multi-leg support

Abstract

The embodiment of the invention provides a using method of a multi-leg support, and belongs to the technical field of auxiliary articles of electronic terminals.The using method of the multi-leg support comprises the steps that the multi-leg support according to the claim is provided, at least three supporting leg assemblies of the multi-leg support are folded in a supporting rod assembly of the multi-leg support, and the supporting rod assembly of the multi-leg support is folded in the supporting rod assembly of the multi-leg support; the preliminary opening piece of the multi-leg support is located at an initial position; the at least three supporting leg assemblies are preliminarily opened relative to the supporting rod assembly; and the at least three supporting leg assemblies are opened relative to the supporting rod assembly. The use method has the following beneficial effects that the at least three supporting leg assemblies are preliminarily opened relative to the supporting rod assembly, so that the at least three supporting leg assemblies are easy to open relative to the supporting rod assembly, and the use of the multi-leg bracket is facilitated.

Description

[0001] Cross-reference of related inventions

[0002] This invention claims priority and benefits from the following patent applications:

[0003] Chinese Patent Application No. 2025110067379, entitled "A Multi-Legged Stand," filed on July 21, 2025; Chinese Patent Application No. 2025109606617, entitled "A Multi-Legged Stand and Electronic Terminal Support Device," filed on July 11, 2025; Chinese Patent Application No. 2024112802562, entitled "A Multi-Legged Stand and Electronic Terminal Support Device," filed on September 12, 2024; Chinese Patent Application No. 2024110645088, entitled "A Multi-Legged Stand, an Electronic Terminal Stand, and a Method of Using a Multi-Legged Stand," filed on August 5, 2024; Chinese Patent Application No. 2024110663245, entitled "A Movable Support Leg Knot," filed on August 5, 2024; and their entire contents are incorporated herein by reference. Technical Field

[0004] This invention relates to the field of auxiliary equipment technology for electronic terminals or shooting aids, and more particularly to a method of using a multi-legged stand. Background Technology

[0005] Stands are primarily used to hold and support electronic devices such as tablets and mobile phones, facilitating shooting. They are also used to support shooting aids. Currently, the market offers a wide variety of stands in terms of materials and functions. For example, multi-leg stands have emerged, where the multiple legs can be adjusted to change their opening degree.

[0006] Existing multi-leg supports generally include a support rod assembly and at least three support leg assemblies. These at least three support leg assemblies can be opened or closed relative to the support rod assembly. In the opened state, the at least three support leg assemblies can support a support surface. In the closed state, the support leg assemblies are closed relative to the support rod assembly. However, in existing multi-leg supports, it is not easy for the support leg assemblies to change from a closed state to an open state relative to the support rod assembly. Summary of the Invention

[0007] One of the objectives of this invention is to provide a multi-legged support to solve the problem that the support leg assembly of existing multi-legged supports is not easily changed from a folded state to an open state.

[0008] To address the above problems, embodiments of the present invention provide a method for using a multi-legged support, the method comprising:

[0009] A multi-leg bracket as claimed in the claims is provided, wherein at least three support leg assemblies of the multi-leg bracket are retracted into the support rod assembly of the multi-leg bracket, and the initial opening member of the multi-leg bracket is in an initial position;

[0010] This causes at least three support foot assemblies to initially open relative to the support rod assembly;

[0011] At least three support foot assemblies are opened relative to the support rod assembly.

[0012] The following benefits are achieved by using this method: at least three support leg assemblies are initially opened relative to the support rod assembly, thereby making it easier for at least three support leg assemblies to open relative to the support rod assembly, which in turn facilitates the use of the multi-leg bracket. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a multi-leg bracket according to an embodiment of the present invention. In this schematic diagram, the three support leg assemblies of the multi-leg bracket are in a retracted state relative to the support rod assembly.

[0015] Figure 2 yes Figure 1 A schematic diagram of the multi-legged support structure from another perspective;

[0016] Figure 3 yes Figure 2 An enlarged view of the structure at point A in the multi-legged support shown;

[0017] Figure 4 yes Figure 1 The multi-legged bracket shown is a front view in a certain direction;

[0018] Figure 5 yes Figure 4 The cross-sectional view of the multi-legged bracket shown along line II;

[0019] Figure 6 yes Figure 5 An enlarged view of the structure at point B in the structure shown;

[0020] Figure 7 yes Figure 2 The diagram shows the structure of the initial opening component in the multi-legged bracket.

[0021] Figure 8 yesFigure 7 A structural schematic diagram of the pre-opened component from another perspective;

[0022] Figure 9 yes Figure 6 The diagram shows the structural schematic of the mounting components in the structure shown.

[0023] Figure 10 yes Figure 9 A structural schematic diagram of the mounting component from another perspective;

[0024] Figure 11 yes Figure 6 An exploded view of the structure shown, including the mounting components, the initial opening components, and the return spring.

[0025] Figure 12 yes Figure 11 A schematic diagram of the structure from another perspective;

[0026] Figure 13 yes Figure 1 The diagram shows a multi-legged bracket with the three support leg assemblies initially opened relative to the support rod assembly. In this diagram, the initially opened component is in the second position.

[0027] Figure 14 yes Figure 13 The diagram shows a multi-legged support structure from another perspective;

[0028] Figure 15 yes Figure 14 An enlarged view of the structure at point C in the multi-legged support shown;

[0029] Figure 16 yes Figure 13 The multi-legged bracket shown is a front view in a certain direction;

[0030] Figure 17 yes Figure 16 The cross-sectional view of the multi-legged bracket shown is along line II-II.

[0031] Figure 18 yes Figure 17 Enlarged view of the structure at point D in the multi-legged support shown;

[0032] Figure 19 yes Figure 1 The diagram shows the structure of the multi-leg support when the three support leg assemblies are open relative to the support rod assembly.

[0033] Figure 20 yes Figure 19 The cross-sectional view of the multi-legged bracket shown along line III-III;

[0034] Figure 21 yes Figure 20An enlarged view of the structure at point E in the multi-legged support shown;

[0035] Figure 22 yes Figure 19 The diagram shows the structure of the sliding sleeve assembly in the multi-leg bracket.

[0036] Figure 23 yes Figure 19 The diagram shows the structural schematic of the support leg assembly in the multi-legged bracket.

[0037] Figure 24 yes Figure 23 An enlarged view of the structure at point F in the support leg assembly shown;

[0038] Figure 25 yes Figure 23 An enlarged view of the structure at point G in the support leg assembly shown;

[0039] Figure 26 yes Figure 23 An enlarged view of the structure at point H in the support leg assembly shown;

[0040] Figure 27 yes Figure 19 The diagram shows the structure of the connecting rod in the multi-legged bracket.

[0041] Figure 28 This is a schematic diagram of the structure of the terminal support device according to an embodiment of the present invention;

[0042] Figure 29 This is a schematic diagram of another embodiment of the multi-leg bracket of the present invention. In this schematic diagram, the three support leg assemblies of the multi-leg bracket are in a retracted state relative to the support rod assembly.

[0043] Figure 30 yes Figure 29 An enlarged view of the structure at point A in the multi-legged support shown;

[0044] Figure 31 yes Figure 29 The multi-legged bracket shown is a front view in a certain direction;

[0045] Figure 32 yes Figure 31 A partial sectional view of the multi-legged bracket shown along line BB;

[0046] Figure 33 yes Figure 32 An enlarged view of the structure at point C in the multi-legged support shown;

[0047] Figure 34 yes Figure 29 The diagram shows the assembly of the initial opening components, mounting components, and other structures in the multi-legged bracket.

[0048] Figure 35 This is a schematic diagram of the structure shown in Figure 34 from another perspective;

[0049] Figure 36 yes Figure 34 The diagram shows the structural schematic of the mounting components in the structure shown.

[0050] Figure 37 yes Figure 34 The diagram shows the initial opening component and the return spring in the structure shown.

[0051] Figure 38 yes Figure 29 The diagram shown is a structural schematic of the multi-leg bracket when the three support leg assemblies are initially opened relative to the support rod assembly. In this schematic, the initially opened component is in the third position.

[0052] Figure 39 yes Figure 38 Enlarged view of the structure at point D in the multi-legged support shown;

[0053] Figure 40 yes Figure 38 The multi-legged bracket shown is a front view in a certain direction;

[0054] Figure 41 yes Figure 40 A partial sectional view of the multi-legged bracket shown along line EE;

[0055] Figure 42 yes Figure 41 An enlarged view of the structure at point F in the structure shown;

[0056] Figure 43 yes Figure 29 The diagram shows a multi-legged bracket with the three support leg assemblies initially opened relative to the support rod assembly. In this diagram, the initially opened component is in the second position.

[0057] Figure 44 This is an enlarged view of the structure at point G in the multi-legged bracket shown in Figure 43;

[0058] Figure 45 yes Figure 44 The multi-legged bracket shown is a front view in a certain direction;

[0059] Figure 46 yes Figure 45 A partial sectional view of the multi-legged support shown along line HH;

[0060] Figure 47 yes Figure 46 An enlarged view of the structure at point I in the multi-legged support shown;

[0061] Figure 48 yes Figure 29The diagram shows the structure of the multi-leg support when the three support leg assemblies are open relative to the support rod assembly.

[0062] Figure 49 yes Figure 48 A partial sectional view of the multi-legged bracket shown along line JJ;

[0063] Figure 50 yes Figure 49 An enlarged view of the structure at point K in the structure shown;

[0064] Figure 51 yes Figure 29 The diagram shows the structural schematic of the support leg assembly in the multi-legged bracket.

[0065] Figure 52 yes Figure 51 An enlarged view of the structure at point L in the support leg assembly shown;

[0066] Figure 53 yes Figure 51 An enlarged view of the structure at point M in the support leg assembly shown;

[0067] Figure 54 yes Figure 48 The diagram shows the structure of the connecting rod in the multi-legged bracket.

[0068] Figure 55 yes Figure 48 The diagram shows the structure of the sliding sleeve assembly in the multi-leg bracket.

[0069] Figure 56 This is an assembly diagram of the mounting component and the preliminary opening component in another embodiment of the multi-leg bracket of the present invention;

[0070] Figure 57 for Figure 56 Top view of the structure shown;

[0071] Figure 58 for Figure 57 A sectional view along line IV-IV;

[0072] Figure 59 for Figure 56 An exploded view of the structure shown;

[0073] Figure 60 for Figure 56 A schematic diagram of the initial opening component of the structure shown in the figure;

[0074] Figure 61 for Figure 56 A schematic diagram of the mounting components shown in the diagram;

[0075] Figure 62 for Figure 61A structural schematic diagram of the mounting component shown from another angle;

[0076] Figure 63 for Figure 60 A schematic diagram of the preliminary opening component shown in the figure;

[0077] Figure 64 for Figure 63 A schematic diagram showing another angle of the initially opened component;

[0078] Figure 65 for Figure 60 A schematic diagram of the structure of the movable component of the preliminary opening component shown in the figure;

[0079] Figure 66 This is a schematic diagram of another embodiment of the multi-leg bracket of the present invention. In this schematic diagram, the three support leg assemblies of the multi-leg bracket are in a retracted state relative to the support rod assembly.

[0080] Figure 67 This is a schematic diagram of another embodiment of the multi-leg bracket of the present invention. In this schematic diagram, the four support leg assemblies of the multi-leg bracket are in a retracted state relative to the support rod assembly.

[0081] Figure 68 for Figure 67 A cross-sectional view of a multi-legged bracket at one angle;

[0082] Figure 69 yes Figure 68 An enlarged view of the structure at point N in the support leg assembly shown.

[0083] Figure Labels

[0084] Group 1: Support rod assembly 100, support rod body 110, first outer peripheral wall 111, mounting part 120, first mounting sub-part 120a, second mounting sub-part 120b, abutment surface 1211, second thread 121, retaining part 122, second retaining part 122a, separating protrusion 122b, mounting part 123, mounting protrusion 124, third fastener 125, second fastener 130, second head 131, second rod part 132 101, mounting cavity 101, second supporting wall 102, through hole 103, mounting hole 104, sliding groove 105, third rotating part 106, sliding sleeve assembly 200, sliding strip 210, main cylinder 220, clearance notch 221, positioning cylinder 230, sliding cavity 201, first rotating part 202, support foot assembly 300, first outer peripheral surface 3111, anti-pinch groove 3112, positioning slot 3113, positioning protrusion 3114, support foot body 31 0. Second rotating part 311, slot 312, first mounting opening 313, magnetic suction part 320, anti-slip pad 330, fifth rotating part 301, contact surface 302, connecting rod 400, fourth rotating part 410, sixth rotating part 420, preliminary opening part 500, first thread 510, mounting post 520, movable part 522, guide part 523, mating part 525, force-bearing part 526, elastic part 527, guide groove 528, protrusion 5 29. Connecting post 530, actuating part 540, adjusting piece 550, pressure applying part 560, push part 570, blocking part 580, first holding part 581, first side part 581a, fourth fastener 590, rotation axis 501, accommodating cavity 502, first supporting wall 503, first end face 504, force application space 505, return spring 610, first fastener 620, first head 621, support member 720, connecting arm 710. Detailed Implementation

[0085] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0086] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0087] This invention provides a multi-legged bracket, as shown in the following embodiment. Figures 1-27 or refer to Figures 29-55or refer to Figures 56-66 The multi-leg bracket includes a support rod assembly 100, a sliding sleeve assembly 200, at least three support foot assemblies 300, at least three connecting rods 400, and a preliminary opening member 500. The sliding sleeve assembly 200 is slidably sleeved on the support rod assembly 100 along its length. At least three support foot assemblies 300 are rotatably connected to the sliding sleeve assembly 200. At least three connecting rods 400 correspond to at least three support foot assemblies 300, with one end rotatably connected to the support rod assembly 100 and the other end rotatably connected to the corresponding support foot assembly 300. The at least three support foot assemblies 300 can open or close relative to the support rod assembly 100. In the initial state, the at least three support foot assemblies 300 remain closed to the support rod assembly 100. When the support rod assembly 100 is in an open state, at least three support foot assemblies 300 can be supported on a support surface. Applying a first external action to the initial opening member 500 can cause the initial opening member 500 to rotate relative to the support rod assembly 100. The initial opening member 500 has at least three actuating portions 540, each corresponding to one of the at least three support foot assemblies 300. During the rotation of the initial opening member 500 from the initial position to the second position, the actuating portions 540 actuate the corresponding support foot assemblies 300 to cause the at least three support foot assemblies 300 to close relative to the support rod assembly 100 and then initially open relative to the support rod assembly 100, thereby facilitating the opening of the at least three support foot assemblies 300 relative to the support rod assembly 100. Understandably, the initial opening member 500 rotates relative to the support rod assembly 100 to initially open at least three support leg assemblies 300 relative to the support rod assembly 100, thereby making it easier for the at least three support leg assemblies 300 to open relative to the support rod assembly 100, and thus facilitating the use of the multi-leg bracket.

[0088] Understandably, during the process of the actuating part 540 actuating the corresponding support foot assembly 300 to cause at least three support foot assemblies 300 to retract relative to the support rod assembly 100 and then initially open relative to the support rod assembly 100, that is, during the process of the actuating part 540 rotating relative to the support rod assembly 100 and pushing open the corresponding support foot assembly 300 to cause at least three support foot assemblies 300 to retract relative to the support rod assembly 100 and then initially open relative to the support rod assembly 100.

[0089] For example, the multi-legged stand of the present invention can be used to support electronic terminals and / or shooting aids. The electronic terminals can be mobile phones, tablets, cameras, etc., and the shooting aids can be fill lights, remote controls, cameras, etc.

[0090] For example, the support rod assembly 100 can be telescopic in its length direction to meet different support height requirements of users and improve the versatility of the product, or the support rod assembly 100 can be of a fixed length; for example, the support rod assembly 100 includes multiple telescopic joints, including a first telescopic joint, and the sliding sleeve assembly 200 is slidably sleeved on the first telescopic joint. The number of support foot assemblies 300 can be 3, 4, etc., and the number of connecting rods 400 can be 3, 4, etc., the number of connecting rods 400 is the same as the number of support foot assemblies 300; during the process of at least three support foot assemblies opening or closing relative to the support rod assembly 100, the sliding sleeve assembly 200, support rod assembly 100, support foot assembly 300 and connecting rod 400 are linked together; the sliding sleeve assembly 200, support rod assembly 100, support foot assembly 300 and the corresponding connecting rod 400 constitute a planar four-bar linkage mechanism, specifically, the planar four-bar linkage mechanism can be a crank-slider mechanism, a rocker-slider mechanism, etc. During the process of the support foot assembly 300 changing from closing to opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides relative to the support rod assembly 100; the sliding sleeve assembly 200 is in different positions on the support rod assembly 100 depending on the degree of opening of the support foot assembly 300 relative to the support rod assembly 100.

[0091] For example only, the support rod assembly 100 has a longitudinally extending central axis, for example, the central axis of the support rod assembly 100 is along the length direction of the support rod assembly 100; for example, the sliding sleeve assembly 200 is sleeved around the support rod assembly 100 along the central axis. The support rod assembly 100 extends longitudinally and provides positioning and guidance for the sliding of the sliding sleeve assembly 200, and can improve the stability of the entire multi-leg bracket. For example, the portion of the support rod assembly 100 that slides with the sliding sleeve assembly 200 is cylindrical to ensure smooth sliding of the sliding sleeve assembly 200. For example only, the rotation axis of the initial opening member 500 is along the length direction of the support rod assembly 100; specifically, the rotation axis of the initial opening member 500 is parallel to the central axis of the support rod assembly 100, and more specifically, the rotation axis of the initial opening member 500 is coaxial with the central axis of the support rod assembly 100. In other examples, the axis of rotation of the initial opening member 500 is not parallel to the length direction of the support rod assembly 100, and the axis of rotation of the initial opening member 500 is not parallel to the central axis of the support rod assembly 100.

[0092] For illustrative purposes only, the sliding sleeve assembly 200 is sleeved around the support rod assembly 100, the support rod assembly 100 extends from the top of the sliding sleeve assembly 200, and the support foot assembly 300 is rotatably connected to the bottom of the main cylinder of the sliding sleeve assembly 200.

[0093] For illustrative purposes only, the support rod assembly 100 has a first outer peripheral wall 111, and the sliding sleeve assembly 200 is slidably fitted onto the first outer peripheral wall 111 of the support rod assembly 100. Specifically, the first outer peripheral wall 111 is located at the first telescopic joint. A sliding gap exists between the first outer peripheral wall 111 of the support rod assembly 100 and the inner peripheral wall of the sliding sleeve assembly 200. This reduces or eliminates the friction between the support rod assembly 100 and the sliding sleeve assembly 200, resulting in smoother and unobstructed sliding of the support rod assembly 100 and the sliding sleeve assembly 200, making the automatic opening and closing of the multi-leg bracket faster and more convenient. In one example, a rolling element is provided between the inner peripheral wall of the sliding sleeve assembly 200 and the inner peripheral wall of the support rod assembly 100. This rolling element can be, for example, a ball bearing or rolling bearing structure, which reduces friction while ensuring smooth sliding between the sliding assembly and the support rod assembly 100. To ensure overall consistency, the sliding sleeve assembly 200 generally has a circular cross-section.

[0094] To prevent wobbling when the support rod assembly 100 and the sliding sleeve assembly 200 slide relative to each other, the gap between the outer peripheral wall of the support rod assembly 100 and the inner peripheral wall of the sliding sleeve assembly 200 can be limited. For example, in some embodiments, the sliding gap between the outer peripheral wall of the support rod assembly 100 and the inner peripheral wall of the sliding sleeve assembly 200 is greater than or equal to 0.1 mm and less than or equal to 1.5 mm. This ensures that the support rod assembly 100 and the sliding sleeve assembly 200 slide with a clearance fit while preventing wobbling during relative sliding, making the automatic opening and closing of the multi-leg bracket more reliable.

[0095] For example, with at least three support foot assemblies 300 retracted relative to the support rod assembly 100, the user can hold the at least three support foot assemblies 300. For instance, when the support rod assembly 100 supports an electronic terminal, the user can hold the at least three support components to take a selfie. In some cases, with at least three support foot assemblies 300 retracted relative to the support rod assembly 100, the connecting rod 400 retracts into the support rod assembly 100, and the connecting rod 400 is located between the support rod assembly 100 and the corresponding support foot assembly 300.

[0096] For illustrative purposes only, to reduce costs and improve aesthetics, typically at least three support leg assemblies 300 are of approximately the same shape and size. When the multi-legged tripod is used with a mobile phone, it can also be configured as a remote-controlled selfie stick. For example, a mounting slot for accommodating a remote control can be provided on one of the support leg assemblies 300. The remote control can be fixedly mounted in the mounting slot or detachably mounted therein. The remote control can be a Bluetooth remote control, allowing the user to control the phone's shooting via Bluetooth, thus enriching the usage scenarios of the multi-legged tripod.

[0097] It should be understood that at least three support leg assemblies 300 remain in a retracted state relative to the support rod assembly 100, and at least three support leg assemblies 300 can maintain a stable retracted shape relative to the support rod assembly 100. For example, during the handling of the multi-legged support, the support leg assemblies 300 maintain a stable retracted shape relative to the support rod assembly 100, and the support leg assemblies 300 cannot spread out relative to the support rod assembly 100, for example, the support leg assemblies 300 do not spread out relative to the support rod assembly 100 due to their own weight. For example, in the retracted state, the support leg assemblies 300 are engaged with the connecting rod 400, the support rod assembly 100, or the sliding sleeve assembly 200, or, for example, the support leg assemblies 300 are magnetically attracted to the connecting rod 400, the support rod assembly 100, or the sliding sleeve assembly 200.

[0098] In common cases, with at least three support leg assemblies 300 initially opened relative to the support rod assembly 100, the at least three support leg assemblies 300 further open relative to the support rod assembly 100, causing the at least three support leg assemblies 300 to be spread out relative to the support rod assembly 100, thereby enabling the at least three support leg assemblies 300 to be supported on the support surface. In other less common cases, the initially opened state of the at least three support leg assemblies 300 relative to the support rod assembly 100 is a type of spread-out state, meaning that in the initially opened state, the at least three support leg assemblies 300 can be supported on the support surface.

[0099] In some situations, when the support foot assembly 300 is retracted into the support rod assembly 100, the support foot assembly 300 is subjected to a retracting force that keeps it retracted into the support rod assembly 100. The type of retracting force that keeps the support foot assembly 300 retracted into the support rod assembly 100 can be various, including suction force (e.g., vacuum suction force), snap-fit ​​force, magnetic attraction force, adhesive force, etc. The retracting force on the support foot assembly 300 can originate partially or entirely from the connecting rod 400, the support rod assembly 100, or the sliding sleeve assembly 200. For example, when the support foot assembly 300 is engaged with the connecting rod 400, the support rod assembly 100, or the sliding sleeve assembly 200, the closing force comes partly or entirely from the engaging force of the connecting rod 400, the support rod assembly 100, or the sliding sleeve assembly 200 on the support foot assembly 300; or, for example, when the support foot assembly 300 is magnetically attracted to the connecting rod 400, the support rod assembly 100, or the sliding sleeve assembly 200, the closing force comes partly or entirely from the magnetic attraction of the connecting rod 400, the support rod assembly 100, or the sliding sleeve assembly 200. When at least three support foot assemblies 300 are closed relative to the support rod assembly 100, they become initially open relative to the support rod assembly 100. The closing force on the support foot assembly 300 decreases or disappears, making it easier for the support foot assembly 300 to open relative to the support rod assembly 100, thus resulting in the support foot assembly 300 being in an open state relative to the support rod assembly 100. For example, when the support foot assembly 300 is initially opened relative to the support rod assembly 100, the closing force on the support foot assembly 300 decreases or becomes zero, making it easier for the user to manually pry the support foot assembly 300 open relative to the support rod assembly 100, or for the user to more easily slide the sliding sleeve assembly 200, thus facilitating the opening of the support foot assembly 300 relative to the support rod assembly 100. As another example, when the support foot assembly 300 is initially opened relative to the support rod assembly 100, under the weight of the moving component, the support foot assembly 300 opens relative to the support rod assembly 100, the sliding sleeve assembly 200 slides towards the bottom end of the support rod assembly 100, and the connecting rod 400 opens relative to the support rod assembly 100, thereby causing the support foot assembly 300 to be in an open state relative to the support rod assembly 100. The moving component includes the support foot assembly 300, the connecting rod 400, and the sliding sleeve assembly 200.

[0100] In other cases, at least three support leg assemblies 300 retract relative to the support rod assembly 100, which is changed to at least three support leg assemblies 300 initially opening relative to the support rod assembly 100. The retraction force on the support leg assemblies 300 remains unchanged, but because the support leg assemblies 300 are initially opened relative to the support rod assembly 100, it is also convenient for the user to further pry the support leg assemblies 300 relative to the support rod assembly 100 with their hands or external tools, thereby facilitating the opening of the support leg assemblies 300 relative to the support rod assembly 100.

[0101] Understandably, the closing force on the support leg assembly 300 is a magnetic attraction. Compared to other methods, due to the effect of the magnetic field, during the process of at least three support leg assemblies 300 opening and closing onto the support rod assembly 100, the magnetic attraction promotes the closing and adhesion of the at least three support leg assemblies 300 to the support rod assembly 100. This makes the automatic closing and adhesion of the at least three support leg assemblies 300 to the support rod assembly 100 faster and smoother, and the at least three support leg assemblies 300 can ultimately adhere to the support rod assembly 100 more closely. Furthermore, since the closing force on the support leg assembly 300 is a magnetic attraction, compared to a locking force, the at least three actuating parts 520 can more smoothly push open the at least three support leg assemblies 300 when rotating, avoiding accidental jamming.

[0102] Specifically, the support surface can be the ground, a tabletop, etc., and can be a flat or curved surface, or a horizontal or inclined surface.

[0103] In some implementations, refer to Figures 1-27 or refer to Figures 29-55 or refer to Figures 56-66 The rotatability of the initial opening member 500 relative to the support rod assembly 100 means that during the movement of the initial opening member 500 relative to the support rod assembly 100, at least one component of the movement of the initial opening member 500 is its rotational movement relative to the support rod assembly 100. For example, the initial opening member 500 may be rotatably connected to the support rod assembly 100, or the initial opening member 500 and the support rod assembly 100 may be rotatably connected via a revolute joint, allowing the user to directly manipulate the initial opening member 500 to rotate relative to the support rod assembly 100. Alternatively, the initial opening member 500 may both translate and rotate relative to the support rod assembly 100.

[0104] Understandably, applying a first external action to the initial opening member 500 causes the initial opening member 500 to rotate relative to the support rod assembly 100, thereby causing the support foot assembly 300 to initially open relative to the support rod assembly 100. For example, when the initial opening member 500 can only rotate relative to the support rod assembly 100, the first external action includes a rotational torque about the rotation axis of the initial opening member 500. Applying a rotational torque to the initial opening member 500 (e.g., a user manually turning the initial opening member 500) causes the initial opening member 500 to rotate relative to the support rod assembly 100, thereby causing the support foot assembly 300 to initially open relative to the support rod assembly 100. When the initial opening member 500 is both translatable and rotatable relative to the support rod assembly 100, the first external action includes a pair of forces acting on the initial opening member 500 along a first direction, applying a force to the initial opening member 500 to cause the initial opening member 500 to translate relative to the support rod assembly 100 along the first direction and thus rotate relative to the support rod assembly 100; or, the first external action includes a rotational torque about the rotation axis of the initial opening member 500, applying a rotational torque to the initial opening member 500 to cause the initial opening member 500 to rotate relative to the support rod assembly 100.

[0105] In some implementations, refer to Figures 1-27 or refer to Figures 56-66 The initial opening member 500 is rotatably restricted and mounted on the support rod assembly 100, so that the initial opening member 500 cannot exceed the initial position or exceed the second position. For example, in the initial position, the initial opening member 500 directly or indirectly abuts against the support rod assembly 100; or in the second position, the initial opening member 500 directly or indirectly abuts against the support rod assembly 100.

[0106] For illustrative purposes only, see reference. Figures 1-27 or refer to Figures 29-55 or refer to Figures 56-66 During the process of at least three support foot assemblies 300 retracting relative to the support rod assembly 100 to initially open relative to the support rod assembly 100, the angle of rotation of the support foot assembly 300 relative to the support rod assembly 100 is greater than or equal to 0.5°, such as 0.5°, 1°, 2°, 3°, etc.

[0107] In some other implementations, during the process of at least three support foot assemblies 300 retracting relative to the support rod assembly 100 to initially opening relative to the support rod assembly 100, the angle of rotation of the support foot assembly 300 relative to the support rod assembly 100 is greater than or equal to 0.3°, for example, the angle can be 0.3°, 0.4°, 0.5°, etc.

[0108] It should be understood that the initial position of the preliminary opening component 500 can refer to a specific position or a range of positions; the second position of the preliminary opening component 500 can refer to a specific position or a range of positions, for example, any position that allows the support leg assembly 300 to be in a preliminary opening state can be the second position of the preliminary opening component 500.

[0109] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 , Figure 18 During the rotation of the initial opening member 500 relative to the support rod assembly 100, the initial opening member 500 can also translate relative to the support rod assembly 100 along a first direction. During the application of a first external force to the initial opening member 500, the initial opening member 500 translates relative to the support rod assembly 100 along the first direction and rotates relative to the support rod assembly 100. The first external force includes a force acting on the initial opening member 500 along the first direction, and / or, the first external force includes a rotational torque acting on the initial opening member 500 about its rotation axis 501. It is understood that the initial opening member 500 can be rotated relative to the support rod assembly 100 by applying the first external force, thereby causing the support leg assembly 300 to initially open relative to the support rod assembly 100. Furthermore, there can be multiple methods of the first external force, thus facilitating the use of this multi-leg bracket.

[0110] In some cases, the first external action includes a force along a first direction (all or part of the first external action is a force along the first direction, for example, a component of the first external action is a force along the first direction), which is a pushing force directed toward the support rod assembly 100, which can be achieved by the user pressing the initial opening member 500 by hand or by the initial opening member 500 striking the support surface; the force can also be a pulling force away from the support rod assembly 100, for example, the user can pull the initial opening member 500. Understandably, the force must overcome the resistance experienced by the initial opening member 500 (which includes the frictional resistance between the initial opening member 500 and the support rod assembly 100), causing the initial opening member 500 to translate relative to the support rod assembly 100 in the first direction, and causing the initial opening member 500 to rotate relative to the support rod assembly 100.

[0111] In other cases, the first external action includes a rotational torque acting on the initial opening member 500 and about its rotation axis 501 (all or part of the first external action is a rotational torque about the rotation axis 501, for example, a component of the first external action is a rotational torque about the rotation axis 501). Alternatively, a rotational torque may be applied to the initial opening member 500 (e.g., a user moves the initial opening member 500 by hand or an external tool), causing the initial opening member 500 to rotate relative to the support rod assembly 100, thereby causing the support foot assembly 300 to initially open relative to the support rod assembly 100.

[0112] In some implementations, the initial opening member 500 is connected to the support rod assembly 100 via a cam pair. During the movement of the initial opening member 500 relative to the support rod assembly 100, the initial opening member 500 both translates and rotates relative to the support rod assembly 100. Specifically, the support rod assembly 100 has a connecting protrusion, and the initial opening member 500 has a connecting groove (or, the support rod assembly 100 has a connecting groove, and the initial opening member 500 has a connecting protrusion). The connecting protrusion and the connecting groove cooperate to form a cam pair. The connecting protrusion slides or rolls within the connecting groove, causing the initial opening member 500 to both translate and rotate relative to the support rod assembly 100. Specifically, the connecting groove and the connecting protrusion are cylindrical cam mechanisms; for example, the connecting groove extends along a helical line. The first external action overcomes the resistance experienced by the initial opening member 500 (this resistance includes the frictional resistance between the connecting protrusion and the connecting groove), causing the connecting protrusion to slide or roll along the connecting groove.

[0113] For example, the first direction is along the length of the support rod assembly 100. For instance, the initial opening member 500 is installed at the bottom end of the support rod assembly 100, and the first direction is the direction from the bottom end of the support rod assembly 100 to its top end.

[0114] Furthermore, during the process of the initial opening member 500 translating relative to the support rod assembly 100 in the first direction and rotating relative to the support rod assembly 100, the translation of the initial opening member 500 relative to the support rod assembly 100 in the first direction plays an auxiliary role in the initial opening of the support foot assembly 300.

[0115] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 , Figure 18The initial opening member 500 is provided with a first thread 510, and the support rod assembly 100 is provided with a second thread 121. The first thread 510 and the second thread 121 mate. The rotation axis 501 of the initial opening member 500 is coaxial with the central axis of the first thread 510. During the application of a first external action to the initial opening member 500, the initial opening member 500 rotates relative to the support rod assembly 100 about the rotation axis, and the initial opening member 500 translates relative to the support rod assembly 100 in a first direction along the rotation axis. The first external action includes a force acting on the initial opening member 500 along the rotation axis 501, and / or, the first external action includes a rotational torque acting on the initial opening member 500 about the rotation axis 501. It is understood that the first thread 510 and the second thread 121 facilitate the manufacture of the initial opening member 500 and the support rod assembly 100, and also facilitate the installation of the initial opening member 500 onto the support rod assembly 100. The first direction is along the rotation axis 501.

[0116] Understandably, the initial opening component 500 is helically connected to the support rod assembly 100. The initial opening component 500 and the support rod assembly 100 are helically connected through a helical pair. During the helical movement of the initial opening component 500 relative to the support rod assembly 100, the first external force overcomes the resistance experienced by the initial opening component 500 (the frictional resistance between the first thread 510 and the second thread 121). The initial opening component 500 both translates and rotates relative to the support rod assembly 100.

[0117] For example, the first thread 510 and the second thread 121 are rectangular threads, or the first thread 510 and the second thread 121 are triangular threads, etc. The structure of the first thread 510 and the second thread 121 allows at least one first external action to drive the initial opening member 500; for example, the helix angle of the first thread 510 is 30.6°. The first thread 510 is an external thread and the second thread 121 is an internal thread, or the first thread 510 is an internal thread and the second thread 121 is an external thread.

[0118] By way of example only, the central axis of the first thread 510 is parallel to the length direction of the support rod assembly 100, or the central axis of the first thread 510 is parallel to the central axis of the support rod assembly 100; more specifically, the central axis of the first thread 510 is coaxial with the central axis of the support rod assembly 100. Other examples include the first thread 510 not being parallel to the length direction of the support rod assembly 100, or the central axis of the first thread 510 not being parallel to the central axis of the support rod assembly 100.

[0119] In some cases, the first external action includes a force along the rotation axis 501 (part or all of the first external action is a force along the rotation axis 501, for example, a component of the first external action is a force along the rotation axis 501), which is a pushing force directed toward the support rod assembly 100. The user can press the initial opening member 500 by hand, or the initial opening member 500 can be pressed by striking the support surface. The force can also be a pulling force away from the support rod assembly 100, for example, the user can pull the initial opening member 500. In other cases, the first external action includes a rotational torque acting on the initial opening member 500 and about its rotation axis 501 (part or all of the first external action is a rotational torque about the rotation axis 501, for example, the component of the first external action is a rotational torque about the rotation axis 501). Alternatively, a rotational torque may be applied to the initial opening member 500 (e.g., a user moves the initial opening member 500 by hand or an external tool), causing the initial opening member 500 to rotate relative to the support rod assembly 100, thereby causing the support foot assembly 300 to initially open relative to the support rod assembly 100.

[0120] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 , Figure 18 , Figure 21 The multi-leg bracket also includes a return spring 610. The return spring 610 acts on the initial opening member 500. When at least three support leg assemblies 300 are open relative to the support rod assembly 100, the return spring 610 returns the initial opening member 500 from the second position to the initial position. The return spring 610 prevents the initial opening member 500 from hindering the retraction of the support leg assemblies 300 relative to the support rod assembly 100. Specifically, it prevents the actuating portion 240 of the initial opening member 500 from hindering the retraction of the support leg assemblies relative to the support rod assembly 100.

[0121] Understandably, during the movement of the initial opening member 500 relative to the support rod assembly 100 caused by the first external action, the resistance experienced by the initial opening member 500 also includes the elastic force exerted on the initial opening member 500 by the return spring 610.

[0122] For example, when at least three support foot assemblies 300 are initially opened relative to the support rod assembly 100, the return spring 610 causes the initially opened member 500 to return from the second position to the initial position.

[0123] For example, the return spring 610 can be a column spring, a tower spring, a torsion spring, etc. In some cases, the return spring 610 is a column spring or a tower spring, and the function of the return spring 610 on the initial opening member 500 is the force acting on the initial opening member 500 along the rotation axis 501. This force is the tension or push force of the return spring 610 on the initial opening member 500. In other cases, the return spring 610 is a torsion spring, and the function of the return spring 610 on the initial opening member 500 is the rotational torque acting on the initial opening member 500 about the rotation axis 501.

[0124] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 , Figure 18 , Figure 21 The initial opening component 500 has a mounting post 520, a first thread 510 on the mounting post 520, a support rod assembly 100 has a mounting cavity 101, the mounting post 520 is mounted in the mounting cavity 101, a second thread 121 is provided on the cavity wall of the mounting cavity 101, the mounting post 520 has a receiving cavity 502, the receiving cavity 502 is connected to one end of the mounting post 520, at least three actuating parts 540 are all connected to the mounting post 520; the mounting post 520 has a first abutting wall 503, the first abutting wall 503 is located in the receiving cavity. 502, the support rod assembly 100 has a second abutment wall 102 located in the mounting cavity 101; the return spring 610 is a columnar spring or a tower-shaped spring, with its first end housed in the receiving cavity 502, the first end of the return spring 610 abutting against the first abutment wall 503, and its second end abutting against the second abutment wall 102; during the rotation of the initial opening member 500 from the initial position to the second position, the mounting post 520 moves toward the second abutment wall 102, and the return spring 610 is compressed. Understandably, the mounting post 520 is mounted in the mounting cavity 101, and the first end of the return spring 610 is housed in the receiving cavity 502, such that the return spring 610 is at least partially housed in the receiving cavity 502, making the overall structure of the multi-leg bracket compact.

[0125] For example, a columnar spring can be a cylindrical spring, a square columnar spring, a polygonal columnar spring, etc., and a tower-shaped spring can be a conical spring, a frustum-shaped spring, a polygonal tower-shaped spring, etc. The force exerted by the return spring 610 on the initial opening member 500 is a force acting on the initial opening member 500 along the rotation axis 501, which is the thrust of the return spring 610 on the initial opening member 500. It should be understood that the first external action includes a thrust acting on the initial opening member 500 along the rotation axis 501, and / or, the first external action includes a rotational torque acting on the initial opening member 500 about the rotation axis 501.

[0126] Understandably, the first end of the return spring is housed in the receiving cavity, which restricts the return spring to the initial opening part, making it difficult for the return spring to bend or fall out of its working position during extension and retraction.

[0127] Understandably, the return spring is a columnar spring or a tower-shaped spring, which makes the return spring easy to compress and ensures that it does not obstruct the movement of the initial opening component.

[0128] It should be understood that the first thread 510 is an external thread and the second thread 121 is an internal thread.

[0129] Obviously, during the process of the initial opening member 500 rotating from the initial position to the second position, the initial opening member 500 translates along the rotation axis 501 and rotates around the rotation axis 501.

[0130] In some implementations, the mounting post 520 has a first end face 504, and a receiving cavity 502 communicates with the first end face 504. When the initial opening member 500 is in the second position, the first end face 504 abuts against the second abutting wall 102, and the return spring 610 is housed in the receiving cavity 502. The abutment between the first end face 504 and the second abutting wall 102 allows the initial opening member 500 to be easily rotated to the second position, thereby causing the support leg assembly 300 to be in the initial opening state. In this case, the abutment between the first end face 504 and the second abutting wall 102 also restricts the initial opening member 500 to be mounted on the support rod assembly 100, and the position of the initial opening member 500 relative to the support rod assembly 100 cannot exceed its second position.

[0131] In other implementations, the mounting post 520 has a first end face 504, and the receiving cavity 502 is connected to the first end face 504. When the initial opening member 500 is in the second position, the first end face 504 is spaced from the second abutment wall 102, and the return spring 610 is mostly housed in the receiving cavity 502.

[0132] In some implementations of the embodiments of the present invention, refer to Figure 6 , Figure 18 , Figure 21The initial opening member 500 also includes a connecting post 530, which is connected to the mounting post 520. One end of the connecting post 530 is housed in the receiving cavity 502, and a return spring 610 is sleeved on the connecting post 530. The support rod assembly 100 has a retaining part 122, which has a through hole 103 through which the connecting post 530 passes. The retaining part 122 has a second abutment wall 102. When the initial opening member is in the initial position, the retaining part 122 is used to retain the connecting post. The multi-leg bracket also includes a first fastener 620. Fastener 620 is securely connected to connecting post 530. The first head 621 of the first fastener 620 and the mounting post of the initial opening member 500 are located on opposite sides of the holding part 122. During the process of the initial opening member 500 returning from the second position to the initial position, the return spring 610 acts on the initial opening member 500, and the first head 621 of the first fastener 620 moves toward the holding part 122. When the initial opening member 500 is in the initial position, the first head 621 of the first fastener 620 abuts against the holding part 122 to hold the connecting post. It can be understood that the holding part holds the connecting post, specifically the first head 621 of the first fastener 620 abuts against the holding part 122, so that the initial opening member 500 is mounted on the support rod assembly 100 in a restricted manner, preventing the initial opening member 500 from disengaging from the support rod assembly 100 under the action of the return spring 610. The reset spring 610 is sleeved on the connecting post 530, which prevents the reset spring 610 from coming out of the receiving cavity 502, making it less likely for the reset spring to bend or come out of its working position during the extension and retraction process, and also making the structure of the multi-leg bracket compact.

[0133] Specifically, the first fastener 620 can be a threaded part or a riveted part (such as a screw, rivet, etc.), and the first fastener 620 also facilitates the installation of the initial opening part 500.

[0134] In some implementations, when the initial opening member 500 is in the initial position, the connecting post 530 directly or indirectly abuts against the retaining part 122.

[0135] Understandably, one end of the connecting column 530 is housed in the receiving cavity 502, the first abutting wall is located in the receiving cavity, and the first end of the return spring 610 is housed in the receiving cavity 502, making the structure of the multi-leg bracket compact.

[0136] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 , Figure 18 , Figure 21 Wait, or refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50The support rod assembly 100 includes a support rod body 110 and a mounting member 120. The mounting member 120 is mounted on the support rod body 110, and each connecting rod 400 is rotatably connected to the mounting member 120. A mounting cavity 101 is provided in the mounting member 120, a second thread 121 is provided in the mounting member 120, and the mounting member 120 has a second abutment wall 102. Understandably, the support rod assembly 100 includes the support rod body 110 and the mounting member 120 to facilitate the assembly of the support rod assembly 100. The mounting member 120 is used both for the rotatable connection of the connecting rods 400 and for mounting the initial opening member 500, making the structure of the multi-legged bracket compact.

[0137] For illustrative purposes only, the mounting component 120 can be fixedly connected to the support rod body 110, for example, the mounting component 130 can be fixedly connected to the support rod body 110 by means of screws, interference fits, rivets, etc. By providing the mounting component 120 for connection between the initial opening assembly 500 and the connecting rod, the bottom connection structure of the support rod assembly 100 can be independently formed, which can reduce manufacturing costs and facilitate the assembly of the initial opening assembly 500 and the support rod assembly 100. Furthermore, since the support rod body 110 mainly serves a supporting and guiding function, and the mounting component 120 mainly serves a connecting function, the support rod body 110 and the mounting component 120 can also be made of different materials. For example, the support rod body 110 can be made of metal to improve its structural strength and reduce its sliding friction with the sliding sleeve assembly 200, while the mounting component 120 can be made of plastic to reduce the manufacturing cost of the mounting component 130.

[0138] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 , Figure 18 , Figure 21The initial opening component 500 also includes a connecting post 530, which is connected to the mounting post 520. One end of the connecting post 530 is housed in the receiving cavity 502, and a return spring 610 is sleeved on the connecting post 530. The mounting component 120 has a retaining portion 122 with a through hole 103 through which the connecting post 530 passes. The retaining portion 122 has a second abutment wall 102. The multi-leg bracket also includes a first fastener 620, which is connected to the connecting post 530. The fastener is securely connected, with the first head 621 of the first fastener 620 and the mounting post of the initial opening member 500 located on opposite sides of the retaining portion 122. During the process of the initial opening member 500 returning from the second position to the initial position, the return spring 610 acts on the initial opening member 500, causing the first head 621 of the first fastener 620 to move towards the retaining portion 122. When the initial opening member 500 is in the initial position, the first head 621 of the first fastener 620 abuts against the retaining portion 122. This abutment between the first head 621 of the first fastener 620 and the retaining portion 122 prevents the initial opening member 500 from disengaging from the support rod assembly 100. Furthermore, the abutment between the first head 621 of the first fastener 620 and the retaining portion 122, along with the return spring 610, ensures that the initial opening member 500 returns to its initial position, preventing the initial opening member 500 from affecting the retraction of the support foot assembly 300 into the support rod assembly 100.

[0139] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 , Figure 18 , Figure 21 Wait, or refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50The mounting component 120 is installed at the bottom end of the support rod body 110. When at least three support foot assemblies 300 are opened to their maximum open state relative to the support rod assembly 300, the sliding sleeve assembly 200 abuts against the mounting component 120. The mounting component 120 includes a mounting portion 123 and a mounting protrusion 124 connected to the mounting portion 123. Each connecting rod 400 is rotatably connected to the mounting protrusion 124 of the mounting component 120. The mounting cavity 101 communicates with the mounting portion 123. The support rod body 110 has a mounting hole 104 communicating with its bottom end. The mounting portion 123 is inserted into the mounting hole 104. The support rod assembly 100 also includes a second fastener 130, which passes through the support rod body 110 and is fastened to the mounting portion 123. The sliding sleeve assembly 200 has a sliding cavity 201 that is slidably adapted to the support rod assembly 100. The inner wall of 01 is provided with a sliding strip 210, which extends along the sliding direction of the sliding cavity 201; the outer wall of the support rod body 110 is provided with a sliding groove 105, which is adapted to the sliding strip 210. During the sliding of the sliding sleeve assembly 200 along the length of the support rod assembly 100, the sliding strip 210 slides in the sliding groove 105; the second fastener 130 includes a second head 131 and a second rod portion 132 connected to the second head 131. The second head 131 is accommodated in the sliding groove 105, and the second rod portion 132 passes through the support rod body 110 and is fastened to the mounting portion 123; when the sliding sleeve assembly 200 and the support rod assembly 100 are in contact, the second head 131 is accommodated in the sliding cavity 201, and the second head 131 is located between the bottom end of the sliding strip 210 and the bottom end of the sliding sleeve assembly 200. Understandably, the sliding sleeve assembly 200 abuts against the mounting part 120 to prevent the multi-leg bracket from having an excessively large opening angle, which would cause the support leg assembly 300 and the connecting rod 400 to deform, thus preventing damage to the multi-leg bracket during use.

[0140] Understandably, the second fastener 130 securely connects the mounting part 123 to the support rod body 110, and the mounting part 123 is not easily detached from the support rod body 110. The second fastener 130 can be a threaded fastener, a riveted fastener, etc.

[0141] Understandably, the cooperation between the sliding bar 210 and the sliding groove 105 makes the sliding sleeve assembly 200 slide more stably relative to the support rod assembly 100. By housing the second head 131 within the sliding groove 105, the possibility of the second head 131 scratching the user is reduced. Furthermore, the sliding groove 105 serves both to cooperate with the sliding bar 210 and to house the second head 131, resulting in a compact structure for the support rod assembly 100. When the sliding sleeve assembly 200 is in contact with the support rod assembly 100, the second head 131 is located between the bottom end of the sliding bar 210 and the bottom end of the sliding sleeve assembly 200, preventing the second head 131 from obstructing the sliding of the sliding sleeve assembly 200. Moreover, the second head 131 is housed within the sliding cavity 201, further preventing the second head 131 from scratching the user's hand. For example, there are two sliding bars 210, located on opposite sides of the sliding cavity 201; there are two sliding grooves 105, located on opposite sides of the support rod body 110; and there are two second fasteners 130, with their second heads 131 respectively housed within the two sliding grooves 105. Understandably, both the sliding bars 210 and the sliding grooves 105 extend along the sliding direction of the sliding sleeve assembly 200.

[0142] For example, when the sliding sleeve assembly 200 is in contact with the mounting member 120, the sliding sleeve assembly 200 is in contact with the mounting protrusion 124.

[0143] For example only, such as Figure 21 As shown, the mounting component 120 has an abutment surface 1211 protruding from the first outer peripheral wall 111 of the support rod body 110. The abutment surface 1211 is located on the mounting protrusion 124. When at least three support foot assemblies 300 are opened to their maximum open state relative to the support rod assembly 100, the sliding sleeve assembly 200 abuts against the abutment surface 1211. The abutment surface 1211 can be a flat surface, an arc surface, etc.

[0144] For illustrative purposes only, please refer to Figure 22The sliding sleeve assembly 200 also includes a main cylinder 220 and a positioning cylinder 230 connected to the main cylinder 220. Both the main cylinder 220 and the positioning cylinder 230 are slidably sleeved around the support rod body 110. The support foot assembly 300 is rotatably connected to the main cylinder 220. The positioning cylinder 230 extends from the bottom end of the main cylinder 220. When at least three support foot assemblies 300 are retracted relative to the support rod body 110, the positioning cylinder 230 is located between the support foot assemblies 300 and the support rod body 110. When at least three support foot assemblies 300 are opened to their maximum open state relative to the support rod body 110, the positioning cylinder 230 abuts against the mounting component 120. At least three support foot assemblies 300 can be supported on a support surface. The support rod assembly 100 and the initial opening assembly 500 are both located above the support surface. Specifically, the positioning cylinder 230 can abut against the abutment platform 1211. Specifically, the cross-sectional area of ​​the positioning cylinder 230 is smaller than that of the main cylinder 220, so that at least three support foot assemblies 300 can be gathered within the support rod body 110; the positioning cylinder 230 is slidably sleeved around the periphery of the support rod body 110. The main cylinder 220 is available for the user to hold so that the sliding sleeve assembly 200 can slide relative to the support rod assembly 100.

[0145] Understandably, the cross-sectional area of ​​the positioning cylinder 230 is smaller than that of the main cylinder 220. There is a gap between the outer peripheral wall of the main cylinder 220 and the outer peripheral wall of the positioning cylinder 230, so that the main cylinder 220 has a certain thickness, which makes it easy for the top of the support foot assembly 300 to be rotatably connected to the lower end of the hand-held part 210. Then the second rotating part of the support foot assembly 300 has sufficient rotation space 320.

[0146] Understandably, the length of the main tube 220 can be designed according to actual needs. To facilitate user gripping of the multi-legged support, the length of the main tube 220 may be greater than or equal to 1 cm. For example, the length of the main tube 220 may be between 2 cm and 6 cm. This makes the main tube 220 sufficiently long, making it easier for the user to grip, such as when the user grips the main tube 220 to lift the multi-legged support, or when the user grips the main tube 220 to allow the sliding sleeve assembly to slide relative to the support rod assembly.

[0147] For example, such as Figure 22 As shown, the sliding sleeve assembly 200 has at least three first rotating portions 202, and the support foot assembly 300 has a second rotating portion 311. The first rotating portions 202 are holes, and the second rotating portions 311 are shafts. The first rotating portions 202 are disposed on the main cylinder 220, and the main cylinder 220 has a clearance notch 221 to avoid interference between the main cylinder 220 and the support foot assembly. The top end of the support foot assembly is rotatably connected to the lower end of the main cylinder 220.

[0148] For example, refer to Figures 1-27 ,or Figures 29-55The sliding sleeve assembly 200 has at least three first rotating portions 202, and the support foot assembly 300 has a second rotating portion 311. The second rotating portions 311 of the at least three support foot assemblies 300 are rotatably connected to their corresponding first rotating portions 202. The first rotating portion 202 is a shaft, and the second rotating portion 311 is a hole, or vice versa. For example, the support rod assembly 100 has a third rotating portion 106, and the connecting rod 400 has a fourth rotating portion 410. The third rotating portion 106 and the fourth rotating portion 410 are rotatably engaged. The third rotating portion 106 is a hole, and the fourth rotating portion 410 is a shaft, or vice versa. For example, the support foot assembly 300 has a fifth rotating part 301, and the connecting rod 400 has a sixth rotating part 420. The fifth rotating part 301 and the sixth rotating part 420 are rotatably engaged. The fifth rotating part 301 is a hole and the sixth rotating part 420 is a shaft, or the fifth rotating part 301 is a shaft and the sixth rotating part 420 is a hole.

[0149] For example, refer to Figures 1-27 ,or Figures 29-55 The mounting component 120 includes a first mounting sub-component 120a and a second mounting sub-component 120b. The second mounting sub-component 120b is mounted on the first mounting sub-component 120a. A second thread 121 is provided on the first mounting sub-component 120a. The first mounting sub-component 120a includes a mounting portion 123 and a portion of a mounting protrusion 124. The second mounting sub-component 120b includes a portion of the mounting protrusion 124 and is mounted on the first mounting sub-component 120a to form the mounting protrusion 124. When the sliding sleeve assembly 200 abuts against the mounting component 120, the sliding sleeve assembly 200 abuts against the first mounting sub-component 120a. Specifically, the first mounting sub-component 120a is mounted to the second mounting sub-component 120b via a third fastener 125, which can be a threaded component, a riveted component, etc.; the third rotating part 106 is a hole, and the first mounting sub-component 120a and the second mounting sub-component 120b are combined to form the third rotating part 106. The advantage of this arrangement is that it facilitates the rotatable mounting of the connecting rod 400 to the support rod assembly 100. For example, one way to install the connecting rod 400 is to place the connecting rod 400 between the first mounting sub-component 120a and the second mounting sub-component 120b, and then mount the second mounting sub-component 120b to the first mounting sub-component 120a via the third fastener 125.

[0150] Specifically, a second thread 121 is provided in the mounting portion 123, the mounting cavity 101 communicates with the mounting portion 123, and a retaining portion 122 is provided in the mounting portion 123. A second fastener 130 passes through the support rod body 110 and is fastened to the first mounting sub-part 120a.

[0151] For example only, the mounting part 130 is at least partially embedded in the support rod body 110, and the initial opening part 500 is at least partially embedded in the support rod body 110, making the overall structure of the multi-leg bracket more compact; for example, the mounting part 123 of the mounting part 130 is embedded in the support rod body 110.

[0152] In some implementations of the embodiments of the present invention, reference is made to... Figure 4 , Figure 6 , Figure 18 Wait, or refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 When the support leg assembly 300 is retracted into the support rod assembly 100, the support leg assembly 300 is subjected to a retracting force that keeps it retracted into the support rod assembly 100. During the process of at least three support leg assemblies 300 retracting relative to the support rod assembly 100 and then initially opening relative to the support rod assembly 100, the retracting force weakens or decreases to zero. Understandably, the weakening or zeroing of the retracting force on the support leg assembly 300 makes it easier for the support leg assembly 300 to open, facilitating its open state relative to the support rod assembly 100.

[0153] Reference Figure 6 or refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 When the support foot assembly 300 is retracted into the support rod assembly 100, the support foot assembly 300 and the connecting rod 400 are magnetically attracted to each other. During the process of at least three support foot assemblies 300 retracting relative to the support rod assembly 100 and then initially opening relative to the support rod assembly 100, the attractive force of the connecting rod 400 on the support foot assembly 300 weakens or becomes zero. Understandably, the weakening of the attractive force of the connecting rod 400 on the support foot assembly 300 makes it easier for the support foot assembly 300 to open, facilitating its open state relative to the support rod assembly 100.

[0154] For example, refer to Figures 1-27 or refer to Figures 29-55The support leg assembly 300 includes a support leg body 310 and a magnetic member 320. The magnetic member 320 is detachably mounted on the support leg body 310. When the support leg assembly 300 is folded into the support rod assembly 100, the magnetic member 320 magnetically attracts the connecting rod 400. Furthermore, the magnetic member 320 attracting the connecting rod 400 keeps the support leg assembly 300 in the folded state within the support rod assembly 100. The magnetic member 320 facilitates the folding of the support leg assembly 300 into the support rod assembly 100, thus simplifying the storage of the multi-legged bracket. For example, the magnetic member 320 is made of a permanent magnet material, such as AlNiCo permanent magnet alloys, IronChromiumCo permanent magnet alloys, permanent magnet ferrites, rare earth permanent magnet materials, and composite permanent magnet materials. For example, a small portion of the connecting rod 400 is made of a soft magnetic material, such as cast iron, silicon steel, carbon steel, alloy steel, or soft magnet ferrites. The connecting rod 400 includes a soft magnetic body and a plating layer. The soft magnetic body is made of soft magnetic material, and the plating layer is attached to the soft magnetic body.

[0155] In other examples, the connecting rod 400 is at least partially made of a permanent magnetic material, and the support foot assembly 300 is at least partially made of a soft magnetic material, so that the support foot assembly 300 and the corresponding connecting rod 400 are magnetically attracted to each other. In other examples, the connecting rod 400 is at least partially made of a permanent magnetic material, and the support foot assembly 300 is at least partially made of a permanent magnetic material.

[0156] Understandably, since the connecting rod 410 is closer to the support foot assembly 300 than the support rod assembly 100, the magnetic connection between the support foot assembly 300 and the connecting rod 410 allows their magnetic surfaces to be closer than the magnetic connection between the support foot assembly 300 and the support rod assembly 100. This results in a better magnetic attraction effect for at least the three support foot assemblies 300 and effectively prevents them from accidentally separating.

[0157] Among the optional implementation methods, refer to Figure 6 , Figure 26 The support leg body 310 has a slot 312, and the magnetic component 320 is engaged in the slot 312. Engaging the magnetic component 320 in the slot 312 facilitates the installation of the magnetic component 320.

[0158] Among the optional implementation methods, refer to Figure 6 , Figure 26The slot 312 is located inside the support leg body 310. The support leg body 310 has a first mounting opening 313 communicating with the slot 312. The magnetic member 320 can be inserted into the slot 312 through the first mounting opening 313. When the multi-leg bracket is supported on a support plane, the weight of the magnetic member 320 causes it to tend to move away from the first mounting opening 313. The advantage of this design is that it prevents the magnetic member 320 from coming out of the slot 312 of the support leg body 310 during the use of the multi-leg bracket.

[0159] For example, when the multi-leg bracket is supported on a support plane, the first mounting opening 313 is located above the slot 312.

[0160] For example, the magnetic component 320 is fixedly connected to the support leg body 310, and the magnetic component 320 is fixedly connected to the inner side of the support leg body 310. For example, the magnetic component 320 can also be fixedly connected to the inner side of the support leg body 310 by embedding, bonding, or other methods. By aligning the magnetic component 320 with the connecting rod 410, the magnetic attraction between the two can be maximized, resulting in a better magnetic attraction effect.

[0161] In some implementations of the embodiments of the present invention, reference is made to... Figures 1-27 or refer to Figures 29-55 The multi-legged tripod is used to support electronic terminals or shooting aids. With at least three support leg assemblies 300 retracted into the support rod assembly 100, the at least three support leg assemblies 300 can be held handheld. Understandably, the handheld nature of the at least three support leg assemblies 300 facilitates the user's use of the multi-legged tripod; for example, a user can hold the at least three support leg assemblies 300 to take a selfie. For example, when the at least three support leg assemblies 300 are retracted into the support rod assembly 100, the at least three support leg assemblies 300 are cylindrical.

[0162] In some implementations of the embodiments of the present invention, reference is made to... Figure 4 or refer to Figure 30With at least three support leg assemblies 300 retracted relative to the support rod assembly 100, each actuating part 540 is located between two adjacent support leg assemblies 300. Understandably, the multi-leg bracket, with each actuating part 540 located between two adjacent support leg assemblies 300, has a compact structure and occupies a small volume in the retracted state. Specifically, each support leg assembly 300 has a contact surface 302. During the rotation of the initial opening member 500 from the initial position to the second position, the actuating part 540 actuates the contact surface 302 of the corresponding support leg assembly 300. The contact surfaces 302 of two adjacent support leg assemblies 300 are intersected. With at least three support leg assemblies 300 retracted relative to the support rod assembly 100, each actuating part 540 is located within the space enclosed by the contact surfaces 302 of two adjacent support leg assemblies 300.

[0163] For example only, at least three actuating parts are centrally symmetrical about the rotation axis of the initial opening member, and at least three contact surfaces are centrally symmetrical about the rotation axis of the initial opening member.

[0164] In other implementations of the embodiments of the present invention, such as Figures 4 to 6 , Figures 14 to 18 With at least three support leg assemblies 300 retracted into the support rod assembly 100, the at least three support leg assemblies 300 surround the outer periphery of the support rod assembly 100, and each pair of actuating parts 540 is located between corresponding adjacent support leg assemblies 300. The inner wall surface of each support leg assembly 300 has a contact surface 302, which is configured to contact the corresponding actuating part 540 during the rotation of the initial opening member 500 from the initial position to the second position.

[0165] In this embodiment, the contact surface 302 can be a plane or a convex arc surface. It is understood that when at least three support leg assemblies are in the retracted state, the vertical distance between the rotation axis 501 and the contact surface 302 is less than the distance between the rotation axis 501 and the joint between two adjacent support leg assemblies 300. More specifically, the multi-leg bracket also includes an anti-slip pad 380, which is disposed at the bottom end of the support leg assembly 300, and the contact surface 302 is disposed on the anti-slip pad 380. By forming the contact surface 302 on the anti-slip pad 380, the contact portion 540 is not in hard contact with the contact surface 302, thus avoiding wear on the contact portion 540.

[0166] In the retracted state, at least three support leg assemblies 300 surround the outer periphery of the support rod assembly 100, making it easier for the user to hold the multi-legged tripod. For example, the user can hold at least three support leg assemblies 300 for shooting. In the retracted state, the actuating parts 540 are positioned between adjacent support leg assemblies 300, that is, the distance from the tip of the actuating part 540 to the rotation axis 501 is greater than the vertical distance between the rotation axis 501 and the contact surface 302. Thus, after at least three actuating parts 540 rotate, the actuating parts 540 move along the contact surface 302 to gradually and initially open at least three support leg assemblies 300. In this way, the process of at least three actuating parts 540 initially opening at least three support leg assemblies 300 is smoother, and at least three actuating parts 540 do not interfere with the retraction of at least three support leg assemblies 300.

[0167] For illustrative purposes only, the inner peripheral wall of the support foot assembly 300 is a concave wall that mates with the first outer peripheral wall 111 of the support rod assembly 100, and the outer peripheral wall of the support foot assembly 300 is a convex wall. When at least three support foot assemblies 300 are in a folded state, the outer peripheral walls of at least three support foot assemblies 300 together form a first outer peripheral surface, which can be held by the user. More specifically, the first outer peripheral wall 111 of the support rod assembly 100 is a surface of revolution (e.g., a cylindrical surface), the inner peripheral wall of the support foot assembly 300 is a concave arc wall, and the outer peripheral wall of the support foot assembly is a convex arc wall. At least three support foot assemblies 300 are joined together around the first outer peripheral wall 111 of the support rod assembly 100.

[0168] For illustrative purposes only, the support foot assembly 300 has an overall arc-shaped plate structure, and when at least three support foot assemblies 300 are in a retracted state, the first outer peripheral surface is approximately cylindrical to facilitate user grip.

[0169] For example only, when at least three support leg assemblies 300 are in a retracted state, the first outer peripheral surface is flush with the outer peripheral wall of the main cylinder 220, making the overall appearance of the multi-leg bracket more concise and flat; when at least three support leg assemblies 300 are in a retracted state, the first outer peripheral surface and the outer peripheral surface of the main cylinder 220 of the sliding sleeve assembly 200 together form the outer peripheral surface of the multi-leg bracket, and the entire outer peripheral surface of the multi-leg bracket can be held by the user.

[0170] For illustrative purposes only, the support leg assembly 300 has splicing surfaces on both sides. When at least three support leg assemblies 300 are in a retracted state, the splicing surface of each support leg assembly 300 is in contact with the adjacent support leg assembly 300. The contact surface of the support leg assembly 300 is located between the splicing surfaces on both sides of the support leg assembly 300; the contact surface is preferably a plane.

[0171] For example only, such as Figures 1 to 4As shown, when at least three support leg assemblies 300 are in a retracted state, the outer peripheral walls of at least three support leg assemblies 300 together form a first outer peripheral surface 3111 that can be held by the user, and the connection between the outer peripheral walls of two adjacent support leg assemblies 300 is recessed to form an anti-pinch groove 3112, which prevents the user's hand from being pinched when holding the first outer peripheral surface 3111.

[0172] For example, the contact surface 302 is located at the bottom end of the support foot assembly 300, and the top end of the support foot assembly 300 is rotatably connected to the sliding sleeve assembly 200 so that when the actuating part touches the contact surface 302, the opening torque of the support foot assembly 300 against friction with the sliding sleeve assembly 200 is larger.

[0173] For example only, such as Figure 15 and Figure 44 As shown, when at least three support leg assemblies 300 are in a retracted state, the sidewalls of adjacent support leg assemblies 300 are spliced ​​together. One of the sidewalls of adjacent support leg assemblies 300 is provided with multiple positioning slots 3113, and the other is provided with positioning protrusions 3114 that are adapted to and inserted into the multiple positioning slots 3113. Specifically, the multiple positioning slots 3113 are arranged at intervals along the length direction of the support leg assembly. Through the interlocking of the positioning slots 3113 and the positioning protrusions 3114, the alignment between adjacent support leg assemblies is more accurate and reliable when at least three support leg assemblies are retracted, and the overall integrity of the at least three support leg assemblies is better after retraction, reducing the shaking between adjacent support leg assemblies.

[0174] In some implementations of the embodiments of the present invention, reference is made to... Figures 1-27 ,or Figures 29-55 ,or Figures 56-66 During the process of at least three support leg assemblies 300 retracting relative to the support rod assembly 100 and initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction. When the at least three support leg assemblies 300 are initially opened relative to the support rod assembly 100 and the second direction is along the direction of gravity, the self-weight of the moving component causes at least three support leg assemblies 300 to open relative to the support rod assembly 100. The moving component includes the sliding sleeve assembly 200, at least three support leg assemblies 300, and at least three connecting rods 400. Understandably, the self-weight of the moving component causes at least three support leg assemblies 300 to "automatically" open, thereby facilitating the use of the multi-leg bracket.

[0175] Clearly, the second direction is along the length of the support rod assembly 100. During the initial opening of at least three support foot assemblies 300 relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction, the support foot assembly 300 rotates relative to the sliding sleeve assembly 200, the support foot assembly 300 initially opens relative to the support rod assembly 100, the connecting rod 400 rotates relative to the support rod assembly 100, and the connecting rod 400 rotates relative to the support foot assembly 300.

[0176] Because the second direction is along the direction of gravity, the self-weight of the moving component includes at least the self-weight of the sliding sleeve assembly 200. During the initial opening and subsequent opening of at least three support leg assemblies 300 relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction, causing its center of gravity to drop. In some cases, the self-weight of the moving component also includes the self-weight of the support leg assembly 300 and the self-weight of the connecting rod 400. During the initial opening and subsequent opening of at least three support leg assemblies 300 relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction, causing its center of gravity to drop. One end of the support leg assembly 300 slides with the sliding sleeve assembly 200, while the other end opens relative to the support rod assembly 100, causing its center of gravity to drop. The connecting rod 400, initially opening relative to the support rod assembly 100, then opens relative to the support rod assembly 100, causing its center of gravity to drop.

[0177] In some implementations of the embodiments of the present invention, reference is made to... Figures 1-27 or refer to Figure 33 , 47 The first external action includes a rotational torque acting on the initial opening member 500 about its rotation axis 501. The initial opening member 500 has a rotation adjustment part, and the user can apply a rotational torque about the rotation axis 501 to the rotation adjustment part by hand to rotate the initial opening member 500 from an initial position to a second position. Understandably, the rotation adjustment part facilitates manual adjustment of the initial opening member 500 by hand, thereby facilitating the use of the multi-legged stand. In this case, the first external action includes the rotational torque applied by the user to the rotation adjustment part. The rotation adjustment part can be of any shape that can be adjusted by hand; it can be cylindrical, sheet-like, etc.

[0178] In some implementations of the embodiments of the present invention, reference is made to... Figure 4 , Figure 8 Wait, or refer to reference. Figure 44The support foot assembly 300 comprises three units, the actuating part 540 comprises three units, and the rotation adjustment part includes three adjustment plates 550. These three adjustment plates 550 are centrally symmetrical about the rotation axis 501 of the initial opening member 500. Each adjustment plate 550 is connected to a corresponding actuating part 540. Two adjacent adjustment plates 550 form a force application space 505, where the user's three fingers can be placed to facilitate manual adjustment of the rotation adjustment part. Understandably, the user's three fingers can be placed in the force application spaces 505 to adjust the rotation adjustment part, thus facilitating the use of the multi-legged stand. Each of the three fingers can apply rotational torque to the rotation adjustment part. For example, by placing the three fingers in the three force application spaces 505 and then rotating the arm, the user can apply force to each of the three adjustment plates 550. More specifically, the user's three fingers are the thumb, index finger, and middle finger. By applying rotational torque to the initial opening member 500 using three fingers, it is easier to rotate the initial opening member 500, thereby facilitating the use of the multi-leg bracket. In other cases, the rotation adjustment part includes one adjustment plate 550, two adjustment plates 550, four adjustment plates 550, etc.

[0179] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 The initial opening member 500 has a pressure-applying portion 560. A first external action includes a force acting on the initial opening member 500 along a first direction. Applying pressure to the pressure-applying portion 560 along the first direction causes the initial opening member 500 to translate relative to the support rod assembly 100 in the first direction and to rotate relative to the support rod assembly 100. (The user applies pressure to the pressure-applying portion 560, allowing the user to press and rotate the initial opening member 500 relative to the support rod assembly 100, thereby initially opening the support leg assembly 300 relative to the support rod assembly 100, facilitating the use of the multi-leg bracket. For example, the user presses the pressure-applying portion 560 with their hand, or the user strikes the support surface to apply pressure to the initial opening member 500. For example, at least three adjusting tabs 550 are connected to the pressure-applying portion 560, and at least three actuating portions 540 are connected to the pressure-applying portion 560; this arrangement enhances the structural strength of the initial opening member 500.)

[0180] In some implementations of the embodiments of the present invention, reference is made to... Figure 6The initial opening member 500 is installed at the bottom end of the support rod assembly 100. With at least three support leg assemblies 300 retracted relative to the support rod assembly 100, the pressure-applying portion 560 protrudes from the bottom end of the support leg assemblies 300. When the at least three support leg assemblies 300 are retracted relative to the support rod assembly 100, the pressure-applying portion 560 of the initial opening member 500 impacts the support surface, causing the support surface to apply pressure to the pressure-applying portion 560 along a first direction, resulting in the initial opening member 500 translating and rotating relative to the support rod assembly 100. It can be understood that the initial opening member 500 is located at the bottom end of the support rod assembly 100, and the pressure-applying portion 560 protrudes from the bottom end of the support leg assemblies 300, facilitating the impact of the pressure-applying portion 560 of the initial opening member 500 onto the support surface. By impacting the support surface, pressure on the pressure-applying portion 560 is more easily achieved.

[0181] For example, in the folded state, the height of the pressure part 560 protruding from the bottom end of the support foot assembly 300 is greater than or equal to 1 mm.

[0182] In some implementations of the embodiments of the present invention, reference is made to... Figure 1 , Figure 6 , Figure 13 , Figure 18 , Figure 19The initial opening member 500 has a pressure-applying portion 560. A first external action includes a force acting on the initial opening member 500 along a first direction. Pressure is applied to the pressure-applying portion 560 along the first direction, causing the initial opening member 500 to translate relative to the support rod assembly 100 and rotate relative to the support rod assembly 100. During the process of at least three support leg assemblies 300 retracting relative to the support rod assembly 100 to initially open relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along a second direction. When at least three support leg assemblies 300 retract relative to the support rod assembly 100 and the second direction is along the direction of gravity, the pressure-applying portion 560 of the initial opening member 500 impacts the support surface along the second direction, causing the initial opening member 500 to... The at least three support leg assemblies 300 initially open relative to the support rod assembly 100 by translating in a first direction relative to the support rod assembly 100 and rotating relative to the support rod assembly 100. After the pressure portion of the initial opening member 500 impacts the support surface in a second direction (which is along the direction of gravity) to initially open the at least three support leg assemblies 300 relative to the support rod assembly 100, the moving component's own weight and inertia cause the at least three support leg assemblies 300 to open relative to the support rod assembly 100. The moving component includes a sliding sleeve assembly 200, at least three support leg assemblies 300, and at least three connecting rods 400. The inertia of the moving component includes the inertia of maintaining movement in the second direction during the impact of the pressure portion 560 on the support surface. It is understood that the moving component's own weight and inertia cause the at least three support leg assemblies 300 to open "automatically," thereby facilitating the use of the multi-leg bracket.

[0183] Understandably, when the pressure part 560 of the initial opening component 500 impacts the support surface in the second direction, the moving component still maintains its inertia of moving in the second direction.

[0184] Since the second direction is along the direction of gravity, the self-weight of the moving component includes at least the self-weight of the sliding sleeve assembly 200. Since the multi-leg bracket impacts the support surface along the second direction, the inertial effect of the moving component includes at least the inertial effect of the sliding sleeve assembly 200. During the process of at least three support leg assemblies 300 initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction under the action of inertia, and the center of gravity of the sliding sleeve assembly 200 drops, thereby causing at least three support leg assemblies 300 to open relative to the support rod assembly 100. In some cases, the self-weight of the moving component also includes the self-weight of the support foot assembly 300 and the self-weight of the connecting rod 400. The inertia of the moving component also includes the inertia of the support foot assembly 300 and the inertia of the connecting rod 400. During the process of at least three support foot assemblies 300 initially opening relative to the support rod assembly 100, the moving component slides the sliding sleeve assembly 200 along the second direction under its own weight and inertia. The center of gravity of the sliding sleeve assembly 200 decreases, and the support foot assembly 300... Under its own weight and inertia, one end of the support foot assembly 300 slides with the sliding sleeve assembly 200, and the other end opens relative to the support rod assembly 100. The center of gravity of the support foot assembly 300 drops. Under its own weight and inertia, the connecting rod 400 initially opens relative to the support rod assembly 100, and then opens relative to the support rod assembly 100. The center of gravity of the connecting rod 400 drops, thereby causing at least three support foot assemblies 300 to open relative to the support rod assembly 100.

[0185] In some implementations of the embodiments of the present invention, reference is made to... Figure 6 , Figure 18 The support foot assembly 300 has a contact surface 302. During the translational movement of the initial opening member 500 along the first direction, the actuating part 540 contacts the contact surface 302 of the corresponding support foot assembly 300. The angle between the outer normal direction of the contact surface 302 and the first direction is greater than 90° to promote the initial opening of the support foot assembly 300 relative to the support rod assembly 100. The angle between the outer normal direction of the contact surface 302 and the first direction is greater than 90°. During the translational movement of the initial opening member 500 along the first direction, the actuating part 540 pushes against the contact surface 302, thereby promoting the initial opening of the support foot assembly 300 relative to the support rod assembly 100. For example, the contact surface 302 is a plane or a curved surface.

[0186] For example only, the contact surfaces 302 of at least three support foot assemblies 300 enclose a rotation space, and the cross-sectional area of ​​the rotation space is gradually reduced from bottom to top, so that the initial opening member 500 can push open the corresponding support foot assembly 300 during the translation of the initial opening member 500 in the first direction so that the support foot assembly 300 is initially opened relative to the support rod assembly 100.

[0187] Specifically, at least three support foot assemblies 300 are opened to their maximum open state relative to the support rod assembly 100, and at least three support foot assemblies 300 are supported on the support surface, with the contact surface 302 in contact with the support surface. More specifically, each support foot assembly 300 includes an anti-slip pad 330 and a support foot body 310, with the anti-slip pad 330 located at the bottom end of the support foot body 310, and the contact surface 302 located on the anti-slip pad 330.

[0188] In other cases, during the translation of the initial opening member 500 along the first direction, the angle between the outer normal direction of the contact surface 302 and the first direction is 90° or less. The translation of the initial opening member 500 along the first direction does not affect the opening of the support foot assembly 300 relative to the support rod assembly 100. The rotation of the initial opening member 500 about its rotation axis 501 causes the support foot assembly 300 to open initially relative to the support rod assembly 100.

[0189] This invention also provides a terminal support device, as described in the embodiments of the present invention. Figure 28 The system includes a support member 720 and a multi-legged bracket. The support member 720 supports the electronic terminal and is mounted on a support rod assembly 100 of the multi-legged bracket. For example, the support member 720 is mounted directly or indirectly to the support rod assembly 100, such as by a connecting arm 710 mounted on the support rod assembly 100. Specifically, the support member 720 is rotatably mounted to the connecting arm 710, and the support member 720 rotates relative to the connecting arm 710 to adjust the orientation of the electronic terminal (e.g., horizontal, vertical, diagonal, etc.). More specifically, the support member 720 is rotatable around its full circumference relative to the connecting arm 710. Specifically, the connecting arm 710 is rotatably mounted on the support rod assembly 100. The connecting arm 710 rotates relative to the support rod assembly 100 to adjust the usage angle of the electronic terminal. When it is necessary to store the terminal support device, the connecting arm 710 can be folded to the support rod assembly 100, or the connecting arm 710 can be folded to the support foot assembly 300 in a folded state.

[0190] For example, the support member 720 can be a clamp for holding an electronic terminal. The clamp includes a clamp body and two clamping parts, which clamp onto opposite sides of the electronic terminal. The clamp body can be elastically extended and retracted to adjust the clamping width, and the clamping parts can be housed within the clamp body. For example, the support member 720 can be a suction cup for adsorbing an electronic terminal; for example, the suction cup can be adsorbed onto the back of the electronic terminal. For example, the support member 720 can be a magnetic suction member 320 for magnetically attracting an electronic terminal; the magnetic suction member 320 can be an electromagnet or a permanent magnet. For example, the support member 720 can be a tray for supporting an electronic terminal, on which the electronic terminal is placed. For example, the support member 720 can be a clamping member for holding an electronic terminal. For example, the support member 720 is threadedly connected to the electronic terminal; for example, one of the support member 720 and the electronic terminal has a threaded post, and the other has a threaded hole.

[0191] This invention also proposes a method for using a multi-legged support, the method comprising: providing the aforementioned multi-legged support, wherein at least three support leg assemblies 300 of the multi-legged support are retracted into the support rod assembly 100 of the multi-legged support, the initial opening member 500 of the multi-legged support is in an initial position, the initial opening member 500 has a rotation adjustment part, the number of support leg assemblies 300 is three, the number of actuating parts 540 is three, the rotation adjustment part includes three adjusting plates 550, the three adjusting plates 550 are centrally symmetrical about the rotation axis 501 of the initial opening member 500, and the three adjusting plates 550 are respectively connected to... At the corresponding three actuation parts 540, the two adjacent adjustment pieces 550 form force application spaces 505; the user's three fingers are placed in the three force application spaces 505 respectively; the user's arm is rotated to apply a rotational torque about its rotation axis 501 to the initial opening member 500, so that the rotation adjustment part rotates about the rotation axis 501 of the initial opening member 500, so that the initial opening member 500 rotates from the initial position to the second position, so that at least three support foot assemblies 300 are initially opened relative to the support rod assembly 100; so that at least three support foot assemblies 300 are opened relative to the support rod assembly 100.

[0192] Understandably, applying rotational torque to the initial opening member 500 using three fingers and an arm makes it easier to rotate the initial opening member 500, thus facilitating the use of the multi-leg bracket. With at least three support leg assemblies 300 initially open relative to the support rod assembly 100, there are multiple ways to open the at least three support leg assemblies 300 relative to the support rod assembly 100. For example, it is easier for the user to pry the support leg assemblies 300 apart relative to the support rod assembly 100 by hand, or it is easier for the user to slide the sliding sleeve assembly 200, thereby making the support leg assemblies 300 open relative to the support rod assembly 100.

[0193] Furthermore, during the process of at least three support leg assemblies 300 retracting relative to the support rod assembly 100 to initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction. The step of opening the at least three support leg assemblies 300 relative to the support rod assembly 100 includes aligning the second direction with the direction of gravity. The weight of the moving component causes the at least three support leg assemblies 300 to open relative to the support rod assembly 100. The moving component includes the sliding sleeve assembly 200 of the multi-leg bracket, the at least three support leg assemblies 300, and the at least three connecting rods 400 of the multi-leg bracket. The multi-leg bracket can "automatically open" by utilizing the weight of the moving component, reducing manual operation by the user and thus facilitating the use of the multi-leg bracket. Obviously, the weight of the moving component is greater than the resistance force acting on the moving component.

[0194] This invention also provides a method of using a multi-legged bracket, characterized in that the method includes: providing the multi-legged bracket described above, wherein at least three support leg assemblies 300 of the multi-legged bracket are retracted into the support rod assembly 100 of the multi-legged bracket, and the initial opening member 500 of the multi-legged bracket is in an initial position, the initial opening member 500 having a pressure application portion 560; applying pressure to the pressure application portion 560 along a first direction to cause the initial opening member 500 to translate along the first direction, thereby causing the initial opening member 500 to rotate relative to the support rod assembly 100, thereby causing at least three support leg assemblies 300 to initially open relative to the support rod assembly 100; and causing at least three support leg assemblies 300 to open relative to the support rod assembly 100.

[0195] Furthermore, during the process of at least three support leg assemblies 300 retracting relative to the support rod assembly 100 to initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction; the step of opening the at least three support leg assemblies 300 relative to the support rod assembly 100 includes: the second direction being along the direction of gravity, and the self-weight of the moving component causing the at least three support leg assemblies 300 to open relative to the support rod assembly 100. The moving component includes the sliding sleeve assembly 200, at least three support leg assemblies 300, and at least three connecting rods 400. Utilizing the self-weight of the moving component to "automatically open" the multi-legged stand reduces manual operation by the user, thereby facilitating its use.

[0196] Further, during the process of at least three support leg assemblies 300 retracting relative to the support rod assembly 100 to initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction; the step of applying pressure to the pressure part 560 along the first direction to cause the initial opening member 500 to translate along the first direction includes: the pressure part 560 of the initial opening member 500 impacts the support surface along the second direction to cause the initial opening member 500 to translate relative to the support rod assembly 100 along the first direction, the second direction being along the direction of gravity; the step of opening at least three support leg assemblies 300 relative to the support rod assembly 100 includes: the self-weight and inertia of the moving assembly cause at least three support leg assemblies 300 to open relative to the support rod assembly 100, the moving assembly including the sliding sleeve assembly 200 of the multi-leg bracket, at least three support leg assemblies 300 and at least three connecting rods 400 of the multi-leg bracket, the inertia of the moving assembly including the moving assembly maintaining the inertia of moving along the second direction during the process of the pressure part 560 impacting the support surface along the second direction. The multi-legged bracket "automatically opens" by utilizing the self-weight and inertia of the moving components. Furthermore, the self-weight and inertia of the moving components allow the support leg components 300 of the multi-legged bracket to open even faster, thus facilitating the use of the multi-legged bracket.

[0197] This invention also provides a method of using a multi-legged bracket, characterized in that the method includes: providing the multi-legged bracket described above, wherein at least three support leg assemblies 300 of the multi-legged bracket are retracted into the support rod assembly 100 of the multi-legged bracket, the initial opening member 500 of the multi-legged bracket is in an initial position, and the multi-legged bracket has a force-bearing member; applying pressure to the force-bearing member along a first direction to cause the force-bearing member to translate along the first direction, thereby causing the initial opening member 500 to rotate relative to the support rod assembly 100, thereby causing at least three support leg assemblies 300 to initially open relative to the support rod assembly 100; and opening at least three support leg assemblies 300 relative to the support rod assembly 100.

[0198] Reference Figures 29-55This invention provides a multi-legged support, comprising a support rod assembly 100, a sliding sleeve assembly 200, at least three support leg assemblies 300, at least three connecting rods 400, and a preliminary opening member 500. The sliding sleeve assembly 200 is slidably sleeved on the support rod assembly 100 along its length. At least three support leg assemblies 300 are rotatably connected to the sliding sleeve assembly 200. At least three connecting rods 400 correspond to at least three support leg assemblies 300, with one end rotatably connected to the support rod assembly 100 and the other end rotatably connected to the corresponding support leg assembly 300. The at least three support leg assemblies 300 can open or close relative to the support rod assembly 100. In the initial state, the at least three support leg assemblies 300 remain closed to the support rod assembly 100. At least three support leg assemblies 300 are in an open state relative to the support rod assembly 100, and at least three support leg assemblies 300 can be supported on a support surface; a preliminary opening member 500 is slidably mounted on the support rod assembly 100, and applying a second external action to the preliminary opening member 500 can cause the preliminary opening member 500 to translate relative to the support rod assembly 100 in a first direction. The preliminary opening member 500 has at least three push portions 570, and the at least three push portions 570 correspond to at least three support leg assemblies 300 respectively; during the process of the preliminary opening member 500 translating from the initial position to the third position, the push portions 570 push the corresponding support leg assemblies 300 to cause the at least three support leg assemblies 300 to close relative to the support rod assembly 100 and become initially open relative to the support rod assembly 100.

[0199] Understandably, the translation of the initial opening member 500 relative to the support rod assembly 100 causes at least three support leg assemblies 300 to initially open relative to the support rod assembly 100, thereby making it easier for the at least three support leg assemblies 300 to open relative to the support rod assembly 100, and thus facilitating the use of the multi-leg bracket.

[0200] Understandably, during the process of the push part 570 pushing the corresponding support foot assembly 300 to make at least three support foot assemblies 300 close relative to the support rod assembly 100 and then initially open relative to the support rod assembly 100, the push part 570 slides relative to the support rod assembly 100 and pushes open the corresponding support foot assembly 300 to make at least three support foot assemblies 300 close relative to the support rod assembly 100 and then initially open relative to the support rod assembly 100.

[0201] For example only, the sliding direction of the initial opening member 500 is along the length direction of the support rod assembly 100, and more specifically, the sliding direction of the initial opening member 500 is along the central axis of the support rod assembly 100.

[0202] Understandably, Figures 29-55 The illustrated embodiments and Figures 1-27 The difference between the embodiments shown is that the connection between the initial opening member 500 and the support rod assembly 100 is different, and the way the initial opening member 500 initially opens the support rod assembly 100 is different.

[0203] In some implementation methods, refer to Figure 36 , Figure 37 Alternatively, the support rod assembly 100 may have an installation cavity 101, and the initial opening member 500 may be slidably engaged with the installation cavity 101 of the support rod assembly 100; or, the initial opening member 500 may have an installation cavity 101, and the support rod assembly 100 may be engaged with the installation cavity 101 of the initial opening member 500.

[0204] Specifically, as the initial opening member 500 slides relative to the support rod assembly 100, the second external action includes applying a force to the initial opening member 500 along a first direction, causing the initial opening member 500 to translate relative to the support rod assembly 100 along the first direction.

[0205] It should be understood that the initial position of the preliminary opening component 500 can refer to a specific position or a range of positions; the third position of the preliminary opening component 500 can refer to a specific position or a range of positions. For example, any position that allows the support leg assembly 300 to be in a preliminary opening state can be the third position of the preliminary opening component 500.

[0206] It should be understood that the translational direction of the initial opening component 500 can be along the first direction, or the translational direction of the initial opening component 500 can be the opposite direction to the first direction.

[0207] In some implementations, the second external action includes a force acting on the initial opening member 500 along a first direction. Understandably, applying a force along the first direction to the initial opening member 500 causes it to translate from an initial position to a third position, thereby causing the pusher portion 570 to push the corresponding support foot assembly 300, causing at least three support foot assemblies 300 to retract relative to the support rod assembly 100, thus initially opening at least three support foot assemblies 300 relative to the support rod assembly 100.

[0208] It should be understood that the second external action is entirely a force acting on the initial opening member 500 and along the first direction, or a component of the second external action is a force acting on the initial opening member 500 and along the first direction. More specifically, this force is a pushing force directed towards the support rod assembly 100, which the user can achieve by pressing the initial opening member 500 by hand or by the initial opening member 500 striking the support surface. This force can also be a pulling force away from the support rod assembly 100, for example, by the user pulling the initial opening member 500. It is understood that the force must overcome the resistance experienced by the initial opening member 500 (including the frictional resistance between the initial opening member 500 and the support rod assembly 100) so that the initial opening member 500 translates relative to the support rod assembly 100 in the first direction.

[0209] For example, the first direction is along the length of the support rod assembly 100. For instance, the initial opening member 500 is installed at the bottom end of the support rod assembly 100, and the first direction is the direction from the bottom end of the support rod assembly 100 to its top end.

[0210] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 The multi-leg bracket also includes a return spring 610, which acts on the initial opening member 500, causing the initial opening member 500 to return from the third position to the initial position. Understandably, the return spring 610 causes the initial opening member 500 to return to the initial position, preventing the initial opening member 500 from hindering the retraction of the support leg assembly 300 relative to the support rod assembly 100. Specifically, it prevents the push portion 570 of the initial opening member 500 from hindering the retraction of the support leg assembly 300 relative to the support rod assembly 100.

[0211] Understandably, during the movement of the initial opening member 500 relative to the support rod assembly 100 caused by the second external action, the resistance experienced by the initial opening member 500 also includes the elastic force exerted on the initial opening member 500 by the return spring 610.

[0212] For example, when at least three support foot assemblies 300 are initially opened relative to the support rod assembly 100, the return spring 610 causes the initially opened member 500 to return from the third position to the initial position.

[0213] For example, the return spring 610 can be a column spring, a tower spring, a torsion spring, etc. In some cases, the return spring 610 is a column spring or a tower spring. The function of the return spring 610 on the initial opening member 500 is to exert a force on the initial opening member 500 along its translational direction. This force is the tension or pushing force of the return spring 610 on the initial opening member 500.

[0214] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 The initial opening component 500 has a mounting post 520, and the support rod assembly 100 has a mounting cavity 101. The mounting post 520 is slidably mounted in the mounting cavity 101, and at least three push parts 570 are connected to the mounting post 520. The mounting post 520 has a first abutting wall 503 located in the receiving cavity, and the support rod assembly 100 has a second abutting wall 102 located in the mounting cavity 101. The return spring 610 is a columnar spring or a tower-shaped spring, with its first end abutting against the first abutting wall 503 and its second end abutting against the second abutting wall 102. During the process of the initial opening component 500 translating from the initial position to the third position, the mounting post 520 moves toward the second abutting wall 102, and the return spring 610 is compressed. Understandably, the mounting post 520 is slidably mounted in the mounting cavity 101, and the return spring 610 is a columnar spring or a tower-shaped spring, which makes the return spring 610 easy to compress, so that the return spring 610 does not hinder the translation of the initial opening member 500.

[0215] For example, a columnar spring can be a cylindrical spring, a square columnar spring, a polygonal columnar spring, etc., and a tower-shaped spring can be a conical spring, a frustum-shaped spring, a polygonal tower-shaped spring, etc. The force exerted by the return spring 610 on the initial opening member 500 is a force acting on the initial opening member 500 along its translational direction, which is the thrust of the return spring 610 on the initial opening member 500. It should be understood that the second external action includes a thrust acting on the initial opening member 500 along the translational direction.

[0216] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50The mounting post 520 has a receiving cavity 502, which is connected to one end of the mounting post 520. The first abutment wall 102 is located in the receiving cavity 502. The first end of the return spring 610 is received in the receiving cavity 502. Understandably, the first end of the return spring 610 is received in the receiving cavity 502, so that the return spring 610 is at least partially received in the receiving cavity 502, making the overall structure of the multi-leg bracket compact. Furthermore, the first end of the return spring 610 being received in the receiving cavity 502 restricts the return spring 610 to the initial opening member 500, making it less likely for the return spring 610 to bend or displace from its operating position during extension and retraction.

[0217] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 The initial opening member 500 also includes a connecting post 530 connected to the mounting post 520, and a return spring 610 sleeved on the connecting post 530. The support rod assembly 100 has a retaining part 122, which retains the connecting post 530 to prevent the initial opening member 500 from disengaging from the support rod assembly 100 when the initial opening member 500 is in the initial position. The initial opening member 500 also includes a stop member 580 mounted on the connecting post 530. When the initial opening member 500 is in the initial position, the stop member 580 abuts against the retaining part 122 to achieve the retaining part 122 retaining the connecting post 530. During the process of the initial opening member 500 returning from the third position to the initial position, the return spring 610 acts on the initial opening member 500 to cause the stop member 580 to move toward the retaining part 122. Understandably, the retaining part 122 retains the connecting post 530 of the initial opening member 500, so that the initial opening is mounted on the support rod assembly 100 in a restricted manner, preventing the initial opening member 500 from detaching from the support rod assembly 100 under the action of the return spring 610. The return spring 610 is sleeved on the connecting post 530, so that the return spring 610 is not easy to bend or detach from its working position during the extension and retraction process, and also makes the structure of the multi-leg bracket compact.

[0218] For example, the initial opening member 500 also includes a fourth fastener 590, which passes through the stop member 580 and is fastened to the connecting post 530. The fourth fastener 590 is used to install the stop member 580 onto the connecting post 530.

[0219] For example, the connecting post 530 is slidably mounted on the support rod assembly, which has a through hole 103. The connecting post 530 is slidably mounted on the through hole 103 of the support rod assembly, so that the initial opening member is slidably mounted on the support rod assembly.

[0220] In some implementation methods, refer to Figure 33 ,Figure 36 , Figure 37 , Figure 42 , Figure 50 When the initial opening part 500 is in the initial position, the connecting post 530 directly or indirectly abuts against the retaining part 122.

[0221] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 The mounting post 520 has a receiving cavity 502, which is connected to one end of the mounting post 520. A first abutment wall is located in the receiving cavity 502. The first end of the return spring 610 is received in the receiving cavity 502. One end of the connecting post 530 is received in the receiving cavity 502. Understandably, the fact that one end of the connecting post 530 is received in the receiving cavity 502, the first abutment wall is located in the receiving cavity 502, and the first end of the return spring 610 is received in the receiving cavity 502 makes the multi-leg bracket structure compact. The fact that the first end of the return spring 610 is received in the receiving cavity 502 makes it less likely for the return spring 610 to bend or dislodge from its position during extension and retraction.

[0222] Specifically, the mounting component 120 has a through hole 103, and the connecting post 530 is slidably mounted in the through hole 103 of the support rod assembly 100, so that the initial opening component 500 is slidably mounted in the support rod assembly 100.

[0223] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 The mounting post 520 has a receiving cavity 502, which is connected to one end of the mounting post 520. A first abutment wall is located in the receiving cavity 502. The first end of the return spring 610 is received in the receiving cavity 502. The preliminary opening member 500 also includes a connecting post 530, which is connected to the mounting post 520. One end of the connecting post 530 is received in the receiving cavity 502, and the return spring 610 is sleeved on the connecting post 530. The mounting member 120 has a retaining part 122 at the preliminary opening member 500. In the initial position, the holding part 122 holds the connecting post 530; the preliminary opening member 500 also includes a stop member 580 installed on the connecting post 530. When the preliminary opening member 500 is in the initial position, the stop member 580 abuts against the holding part 122 to realize that the holding part 122 holds the connecting post 530; during the process of the preliminary opening member 500 returning from the third position to the initial position, the return spring 610 acts on the preliminary opening member 500 to make the stop member 580 move toward the holding part 122.

[0224] Specifically, the mounting cavity 101 is connected to the mounting part 123, and the retaining part 122 is provided in the mounting part 123. The second fastener 130 passes through the support rod body 110 and is fastened to the first mounting sub-part 120a.

[0225] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 The initial opening member 500 has a pressure-applying portion 560. A second external action includes a force acting on the initial opening member 500 along a first direction. Applying pressure to the pressure-applying portion 560 along the first direction causes the initial opening member 500 to translate relative to the support rod assembly 100 in the first direction, moving the initial opening member 500 from an initial position to a third position. Understandably, the user applies pressure to the pressure-applying portion 560, allowing the user to press and rotate the initial opening member 500 relative to the support rod assembly 100, thereby initially opening the support leg assembly 300 relative to the support rod assembly 100, thus facilitating the use of the multi-legged stand. For example, the user may press the pressure-applying portion 560 with their hand, or the user may strike the support surface to apply pressure to the initial opening member 500.

[0226] For example, at least three adjusting tabs 550 are connected to the pressure application part 560, and at least three push-pull parts 570 are connected to the pressure application part 560. The above arrangement can enhance the structural strength of the initial opening part 500.

[0227] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 The initial opening member 500 is installed at the bottom end of the support rod assembly 100; when at least three support foot assemblies 300 are retracted relative to the support rod assembly 100, the pressure part 560 protrudes from the bottom end of the support foot assembly 300; when at least three support foot assemblies 300 are retracted relative to the support rod assembly 100, the pressure part 560 of the initial opening member 500 impacts the support surface so that the support surface applies pressure to the pressure part 560 in the first direction, causing the initial opening member 500 to translate relative to the support rod assembly 100 in the first direction, thereby causing the initial opening member 500 to translate from the initial position to the third position.

[0228] Understandably, the initial opening member 500 is located at the bottom end of the support rod assembly 100, and the pressure-applying part 560 protrudes from the bottom end of the support foot assembly 300, facilitating the impact of the pressure-applying part 560 of the initial opening member 500 onto the support surface. By impacting the support surface with the pressure-applying part 560, pressure can be applied to the pressure-applying part 560 more easily.

[0229] In some implementation methods, refer to Figure 33, Figure 36 , Figure 37 , Figure 42 , Figure 50 The initial opening member 500 has a pressure-applying portion 560. The second external action includes a force acting on the initial opening member 500 along a first direction. Pressure is applied to the pressure-applying portion 560 along the first direction, causing the initial opening member 500 to translate relative to the support rod assembly 100 in the first direction, thereby causing the initial opening member 500 to translate from an initial position to a third position. During the process of at least three support foot assemblies 300 retracting relative to the support rod assembly 100 to initially open relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along a second direction. When at least three support foot assemblies 300 retract relative to the support rod assembly 100 and the second direction is along the direction of gravity... When the pressure portion 560 of the initial opening member 500 impacts the support surface in a second direction, the initial opening member 500 translates relative to the support rod assembly 100 in a first direction, thereby causing at least three support leg assemblies 300 to initially open relative to the support rod assembly 100. After the pressure portion of the initial opening member 500 impacts the support surface in a second direction along the direction of gravity, causing at least three support leg assemblies 300 to initially open relative to the support rod assembly 100, the self-weight and inertia of the moving component cause at least three support leg assemblies 300 to open relative to the support rod assembly 100. The moving component includes a sliding sleeve assembly 200, at least three support leg assemblies 300, and at least three connecting rods 400. It is understood that the self-weight and inertia of the moving component cause at least three support leg assemblies 300 to open "automatically," thus facilitating the use of the multi-leg bracket.

[0230] Understandably, when the pressure part 560 of the initial opening component 500 impacts the support surface in the second direction, the moving component still maintains its inertia of moving in the second direction.

[0231] Since the second direction is along the direction of gravity, the self-weight of the moving component includes at least the self-weight of the sliding sleeve assembly 200. Since the multi-leg bracket impacts the support surface along the second direction, the inertial effect of the moving component includes at least the inertial effect of the sliding sleeve assembly 200. During the process of at least three support leg assemblies 300 initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along the second direction under the action of inertia, and the center of gravity of the sliding sleeve assembly 200 drops, thereby causing the support leg assembly 300 to open relative to the support rod assembly 100. In some cases, the self-weight of the moving component also includes the self-weight of the support foot assembly 300 and the self-weight of the connecting rod 400. The inertia of the moving component also includes the inertia of the support foot assembly 300 and the inertia of the connecting rod 400. During the process of at least three support foot assemblies 300 initially opening relative to the support rod assembly 100, the moving component slides the sliding sleeve assembly 200 along the second direction under its own weight and inertia. The center of gravity of the sliding sleeve assembly 200 decreases, and the support foot assembly 300... Under its own weight and inertia, one end of the support foot assembly 300 slides with the sliding sleeve assembly 200, and the other end opens relative to the support rod assembly 100. The center of gravity of the support foot assembly 300 drops. Under its own weight and inertia, the connecting rod 400 initially opens relative to the support rod assembly 100, and then opens relative to the support rod assembly 100. The center of gravity of the connecting rod 400 drops, thereby causing at least three support foot assemblies 300 to open relative to the support rod assembly 100.

[0232] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 The support foot assembly 300 has a contact surface 302. During the translational movement of the initial opening member 500 along the first direction, the push part 570 contacts the contact surface 302 of the corresponding support foot assembly 300. The angle between the outer normal direction of the contact surface 302 and the first direction is greater than 90° to facilitate the initial opening of the support foot assembly 300 relative to the support rod assembly 100. The angle between the outer normal direction of the contact surface 302 and the first direction is greater than 90°. During the translational movement of the initial opening member 500 along the first direction, the push part 570 pushes against the contact surface 302, thereby facilitating the initial opening of the support foot assembly 300 relative to the support rod assembly 100. For example, the contact surface 302 is a plane or a curved surface.

[0233] Specifically, at least three support foot assemblies 300 are opened to their maximum open state relative to the support rod assembly 100, and at least three support foot assemblies 300 are supported on the support surface, with the contact surface 302 in contact with the support surface. More specifically, each support foot assembly 300 includes an anti-slip pad 330 and a support foot body 310, with the anti-slip pad 330 located at the bottom end of the support foot body 310, and the contact surface 302 located on the anti-slip pad 330.

[0234] In some implementation methods, refer to Figure 33 , Figure 36 , Figure 37 , Figure 42 , Figure 50 , Figure 33 The first external action includes a rotational torque acting on the initial opening member 500 and about its rotation axis 501; it is understood that the number of actuating parts 540 and pushing parts 570 are the same.

[0235] Specifically, at least three actuating portions 540 and at least three push portions 570 are arranged alternately, with each actuating portion 540 located between two adjacent push portions 570 and each push portion 570 located between two adjacent actuating portions 540.

[0236] In some implementation methods, refer to Figure 36 , Figure 37 During the rotation of the initial opening member 500 relative to the support rod assembly 100, the initial opening member 500 can be held in any one of at least three holding positions, the number of holding positions being the same as the number of support foot assemblies 300; any one of the at least three holding positions is the initial position, and the holding position adjacent to the initial position is the second position.

[0237] It should be understood that any one of the at least three holding positions is the initial position, that is, the initial opening member 500 being in any holding position is equivalent to the initial opening member 500 being in the initial position. Rotation of the initial opening member 500 can cause the actuating part 540 to actuate the corresponding support foot assembly 300, or the initial opening member 500 can be translated along the first direction to cause the push part 570 to push the corresponding support foot assembly 300.

[0238] Understandably, the support foot assembly 300 corresponding to the actuating part 540 of the initial opening member 500 is different in different corresponding holding positions, and the support foot assembly 300 corresponding to the actuating part 570 of the initial opening member 500 is different in different corresponding holding positions.

[0239] For example, the number of support foot assemblies 300 is 3, 4, 5, etc., and the number of positions maintained is 3, 4, 5, etc.

[0240] Understandably, the holding position can refer to a specific location or a range of locations. During the rotation of the initial opening member 500 relative to the support rod assembly 100, the initial opening member 500 remains in the holding position when no external force is applied to it; or, during the rotation of the initial opening member 500 relative to the support rod assembly 100, if the rotational torque of the first external force is less than the holding torque of the initial opening member 500, the initial opening member 500 remains in the holding position.

[0241] In some implementation methods, refer to Figure 42 , Figure 50 The multi-leg bracket also includes a return spring 610, which acts on the initial opening member 500. The initial opening member 500 has a first holding portion 581, and the support rod assembly 100 has a second holding portion 122a. The first holding portion 581 is held at different positions on the second holding portion 122a to keep the initial opening member 500 in different holding positions. During the process of applying a first external force to the initial opening member 500 to rotate relative to the support rod assembly 100, the initial opening member 500 slides relative to the support rod assembly 100 and the return spring 610 extends and retracts, and the first holding portion 581 disengages from or is held in the second holding portion 122a. When the initial opening member 500 stops rotating relative to the support rod assembly 100, the return spring 610 acts on the initial opening member 500 to make the first holding portion 581 hold in the second holding portion 122a, and the return spring 610 causes the initial opening member 500 to return to its initial position.

[0242] Understandably, the return spring 610 serves two purposes: firstly, it engages the first latching part 581 with the second latching part 122a; secondly, its extension and contraction facilitates the disengagement of the first latching part 581 from the second latching part 122a. During the engagement or disengagement of the first latching part 581 with the second latching part 122a, the return spring 610 extends and contracts. This multi-functionality of the return spring 610 contributes to the compact structure of the multi-legged bracket.

[0243] Understandably, the first holding part 581 can be held in at least three positions of the second holding part 122a, so that the initial opening part 500 can be held in at least three holding positions.

[0244] For example, the first holding part 581 is provided on the stop 580 of the initial opening part 500, and the second holding part 122a is provided on the mounting part 120 of the support rod assembly 100. More specifically, the second holding part 122a is provided on the second mounting part 120b.

[0245] In some implementation methods, refer to Figure 33 , 37The first holding portion 581 includes at least one first holding protrusion, and the second holding portion 122a includes at least three second holding grooves. At least one first holding protrusion is held in different at least one second holding groove so that the first holding portion 581 is held in different positions in the second holding portion 122a. The second holding grooves are open so that the first holding protrusion can disengage from the second holding groove during the rotation of the initial opening member 500 relative to the support rod assembly 100. During the rotation of the initial opening member 500 relative to the support rod assembly 100 to disengage the first holding protrusion from the second holding groove, the first holding protrusion slides across the inner wall of the second holding groove. When the initial opening member 500 stops rotating relative to the support rod assembly 100, the return spring 610 acts on the initial opening member 500 to hold at least one first holding protrusion into the corresponding at least one second holding groove.

[0246] Understandably, the second retaining groove is open to facilitate the first retaining protrusion disengaging from the second retaining groove during the process of applying a first external force to the initial opening member 500 to rotate relative to the support rod assembly 100.

[0247] For example, the second retaining groove is V-shaped.

[0248] In other embodiments, the first holding portion 581 includes at least three first holding grooves, and the second holding portion 122a includes at least one second holding protrusion. The at least one second holding protrusion is held in different at least one first holding groove so that the first holding portion 581 is held in different positions in the second holding portion 122a. The first holding groove is open. During the process of the initial opening member 500 applying a first external force to rotate the initial opening member 500 relative to the support rod assembly 100, the second holding protrusion slides across the inner wall of the first holding groove. Understandably, the first retaining groove is open, facilitating the disengagement of the second retaining protrusion from the first retaining groove during the rotation of the initial opening member 500 relative to the support rod assembly 100 caused by the application of a first external force to the initial opening member 500. During this rotation, the second retaining protrusion slides across the inner wall of the first retaining groove. When the initial opening member 500 stops rotating relative to the support rod assembly 100, the return spring 610 acts on the initial opening member 500 to engage at least one second retaining protrusion with at least one corresponding first retaining groove. For example, the first retaining groove may be V-shaped.

[0249] In some implementation methods, refer to Figure 36 , Figure 37The support rod assembly 100 has at least three partition protrusions 122b, which are staggered with at least three second retaining grooves. The space between two adjacent partition protrusions 122b is a second retaining groove. The partition protrusions 122b gradually narrow along a first direction, and the first side portion 581a of the first retaining protrusion gradually narrows in the opposite direction to the first direction, so that when the initial opening member 500 stops rotating relative to the support rod assembly 100, at least one first retaining protrusion engages with at least one corresponding second retaining groove. The first side portion 581a of the first retaining protrusion is on the side of the first retaining protrusion near the partition protrusion 122b.

[0250] Understandably, both the dividing protrusion 122b and the first side of the first retaining protrusion gradually narrow, facilitating the insertion of the first retaining protrusion into the second retaining groove. Understandably, the inner wall of the second retaining groove is on the dividing protrusion, and the retaining portion includes the dividing protrusion 122b.

[0251] Understandably, when the initial opening member 500 rotates relative to the support rod assembly 100 to any angle, the first retaining protrusion of the initial opening member 500 can engage or disengage from the second retaining groove under the action of the return spring 610. For example, when the initial opening member 500 rotates to a certain angle, the first retaining protrusion is precisely aligned with the second retaining groove, and under the action of the return spring 610, the first retaining protrusion of the initial opening member 500 engages with the second retaining groove. As another example, when the initial opening member 500 rotates to another angle, the second retaining protrusion is not aligned with the second retaining groove, and under the action of the return spring 610, the first retaining protrusion of the initial opening member 500 engages with the second retaining groove, and the initial opening member 500 rotates during the process of the first retaining protrusion engaging with the second retaining groove.

[0252] In some implementation methods, refer to Figure 42 , Figure 50 The initial opening member 500 has a stop member 580, and the support rod assembly 100 has a retaining portion 122. When the initial opening member 500 is in its initial position, the retaining portion 122 retains the stop member 580 to prevent the initial opening member 500 from disengaging from the support rod assembly 100. The stop member 580 includes a first retaining portion 581, and the retaining portion 122 includes a second retaining portion 122a. The second retaining portion 122a retains the first retaining portion 581 so that the retaining portion 122 retains the stop member 580. It is understood that the first retaining portion 581 and the second retaining portion 122a are used both to hold the initial opening member 500 in different holding positions and to prevent the initial opening member 500 from disengaging from the support rod assembly 100, thereby making the structure of the multi-legged bracket compact.

[0253] In some implementation methods, refer to Figure 33During the rotation of the initial opening member 500 relative to the support rod assembly 100, the initial opening member 500 can be held in any one of at least three holding positions, the number of holding positions being the same as the number of support foot assemblies 300; any one of the at least three holding positions is the initial position.

[0254] It should be understood that any one of the at least three holding positions is the initial position, that is, the initial opening member 500 in any holding position is equivalent to the initial opening member 500 in the initial position. The initial opening member 500 translates along the first direction to make the push part 570 push the corresponding support foot assembly 300.

[0255] Reference Figure 36 The present invention also proposes a method of using a multi-leg bracket, the method comprising: providing a multi-leg bracket, wherein at least three support leg assemblies 300 of the multi-leg bracket are retracted into a support rod assembly 100 of the multi-leg bracket, and a preliminary opening member 500 of the multi-leg bracket is in an initial position; applying pressure to the preliminary opening member 500 along a first direction to cause the preliminary opening member 500 to translate along the first direction, thereby causing at least three support leg assemblies 300 to initially open relative to the support rod assembly 100; and causing at least three support leg assemblies 300 to open relative to the support rod assembly 100.

[0256] Understandably, the translational movement of the initial opening member 500 in the first direction can cause the support foot assembly 300 to open initially, thereby facilitating the opening of the support foot assembly 300 relative to the support rod assembly 100.

[0257] In some implementations, during the process of at least three support foot assemblies 300 retracting relative to the support rod assembly 100 to initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along a second direction; the step of opening the at least three support foot assemblies 300 relative to the support rod assembly 100 includes: the step of opening the at least three support foot assemblies 300 relative to the support rod assembly 100 includes making the second direction along the direction of gravity, and the self-weight of the moving assembly causing the at least three support foot assemblies 300 to open relative to the support rod assembly 100, the moving assembly including the sliding sleeve assembly 200, the at least three support foot assemblies 300 and the at least three connecting rods 400.

[0258] In some implementations, during the process of at least three support leg assemblies 300 retracting relative to the support rod assembly 100 to initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along a second direction; the step of applying pressure to the pressure part 560 along a first direction to cause the initial opening member 500 to translate along the first direction includes: the pressure part 560 of the initial opening member 500 impacts the support surface along the second direction, so that the initial opening member 500 translates relative to the support rod assembly 100 along the first direction and rotates relative to the support rod assembly 100, the second direction being along the direction of gravity; the step of opening at least three support leg assemblies 300 relative to the support rod assembly 100 includes: the self-weight and inertia of the moving component cause at least three support leg assemblies 300 to open relative to the support rod assembly 100, the moving component including the sliding sleeve assembly 200 of the multi-leg bracket, at least three support leg assemblies 300, and at least three connecting rods 400 of the multi-leg bracket.

[0259] This invention also proposes a method for using a multi-legged bracket. The method includes: providing a multi-legged bracket, with at least three support leg assemblies 300 of the multi-legged bracket retracted into a support rod assembly 100 of the multi-legged bracket, and a preliminary opening member 500 of the multi-legged bracket in an initial position, the preliminary opening member 500 having a rotation adjustment part; the user applies a rotational torque about its rotation axis 501 to the rotation adjustment part of the preliminary opening member 500, causing the rotation adjustment part to rotate about the rotation axis 501 of the preliminary opening member 500, so that the preliminary opening member 500 rotates from the initial position to a second position, causing at least three support leg assemblies 300 to initially open relative to the support rod assembly 100; and opening at least three support leg assemblies 300 relative to the support rod assembly 100. It can be understood that the rotation of the preliminary opening member 500 can cause the support leg assemblies 300 to initially open, thereby facilitating the opening of the support leg assemblies 300 relative to the support rod assembly 100.

[0260] In some implementations, the number of support foot assemblies 300 is three, the number of touch parts 540 is three, and the rotation adjustment part includes three adjustment plates 550. The three adjustment plates 550 are centrally symmetrical about the rotation axis 501 of the initial opening member 500. The three adjustment plates 550 are respectively connected to the corresponding three touch parts 540, and two adjacent adjustment plates 550 form a force application space 505. The step of placing the user's three fingers in the three force application spaces 505 respectively, so that at least three support foot assemblies 300 are initially opened relative to the support rod assembly 100, includes: rotating the user's arm to apply a rotational torque about the rotation axis 501 of the initial opening member 500, so that the rotation adjustment part rotates about the rotation axis 501 of the initial opening member 500, so that the initial opening member 500 rotates from the initial position to the second position, so that at least three support foot assemblies 300 are initially opened relative to the support rod assembly 100.

[0261] In some implementations, during the process of at least three support foot assemblies 300 retracting relative to the support rod assembly 100 to initially opening relative to the support rod assembly 100, the sliding sleeve assembly 200 slides along a second direction; the step of opening the at least three support foot assemblies 300 relative to the support rod assembly 100 includes making the second direction along the direction of gravity, and the self-weight of the moving assembly causing the at least three support foot assemblies 300 to open relative to the support rod assembly 100, wherein the moving assembly includes the sliding sleeve assembly 200 of the multi-leg bracket, the at least three support foot assemblies 300, and the at least three connecting rods 400 of the multi-leg bracket.

[0262] In other embodiments, please refer to Figure 37 The multi-leg support includes a movable member 522 that slides relative to the support rod assembly 100 to subject the initial opening member 500 to a first external force, thereby causing the initial opening member 500 to rotate from an initial position to a second position.

[0263] In this example, the connection method between the movable member 522 and the initial opening member 500 can be adaptively adjusted and selected according to the sliding position of the movable member 522 and the support rod assembly 100. For example, when the movable member 522 slides relative to the support rod assembly 100 along its axial direction, the movable member 522 and the initial opening member 500 can be screwed together. When the movable member 522 slides relative to the support rod assembly 100 radially, the movable member 522 and the initial opening member form a gear-rack structure. The movable member 522 and the initial opening member can also be connected in other ways, as long as the linear motion of the movable member 522 relative to the support rod assembly 100 can be converted into the circumferential rotational motion of the initial opening member. For another example, the movable member 522 and the initial opening member 500 can constitute a cam mechanism, a crank-slider mechanism, etc.

[0264] The movable member 522 slides relative to the support rod assembly 100 under direct or indirect external force to transmit the external force to the initial opening member 500 and apply a first external force to the initial opening member 500 to rotate it, thereby rotating the initial opening member 500 from the initial position to the second position. For example, the initial opening member 500 can be subjected to the first external force by directly or indirectly pressing the movable member 522, or by directly or indirectly pushing the movable member 522. When the user directly presses the movable member 522, by providing a movable member 522 that can slide relative to the support rod assembly 100, the initial opening member 500 is indirectly pushed to rotate. Compared to directly applying the first external force to the initial opening member 500 to rotate it, the movable member 522 will not rotate, reducing friction between the movable member 522 and the user's hand. When the user indirectly presses the movable member 522 through an intermediate member, neither the movable member 522 nor the intermediate member will rotate, reducing friction between the intermediate member and the user's hand. For example, the intermediate member is a force-bearing member.

[0265] Furthermore, since the movable part 522 and the initial opening part 500 are separate structures, the initial opening part 500 does not need to move up and down, which reduces the resistance to movement. This makes it easier and more convenient for the user to press or push the movable part 522, and thus makes the initial opening operation of the multi-leg bracket simpler and easier to operate.

[0266] Furthermore, such as Figure 42 As shown, the movable member 522 and the support rod assembly 100 are slidably engaged along the rotation axis 501 of the initial opening member 500, and the movable member 522 and the support rod assembly 100 are in a circumferential upper limit engagement around the rotation axis. The movable member 522 and the initial opening member 500 are helically engaged so that when the movable member 522 is subjected to a third external force, the initial opening member 500 is subjected to a first external force.

[0267] For illustrative purposes only, the third external action includes a force acting along the axis of rotation, for example, the third external action may be solely a force acting along the axis of rotation; in other examples, the third external action may be a force tilted relative to the axis of rotation, and a component of the third external action may be an upward force acting along the axis of rotation. The movable element 522 is mounted at the bottom end of the support rod assembly 100.

[0268] The circumferential positioning and sliding along the rotation axis of the movable part 522 and the support rod assembly 100 can be achieved by providing mutually cooperating grooves and slide rails (or mutually cooperating slide rails and grooves) on the movable part 522 and the support rod assembly 100, respectively. The movable part 522 is helically engaged with the preliminary opening part 500; specifically, the movable part 522 can be a helical component, such as a helical rod or helical sleeve adapted to the preliminary opening part 500. By using a helical engagement between the movable part 522 and the preliminary opening part 500, the linear motion of the movable part 522 is converted into the circumferential rotational motion of the preliminary opening part 500. Compared to other methods, this fully utilizes the axial space and dimensions of the support rod assembly 200, resulting in a more compact structure between the movable part 522 and the preliminary opening part 500.

[0269] Specifically, mating threads can be provided on the movable part 522 and the preliminary opening part 500 to achieve a helical engagement between the movable part 522 and the preliminary opening part 500. For example, the threads provided on the movable part 522 and the preliminary opening part 500 are rectangular threads or triangular threads, etc. For example, the movable part 522 is a threaded post, and the preliminary opening part 500 has a helical hole for the helical post to pass through, with the helical post threadedly engaged in the helical hole; another example is that the preliminary opening part 500 has a threaded post, and the movable part 522 has a threaded hole that helically engages with the threaded post. Specifically, the preliminary opening part 500 includes a mating part 525 and an actuating plate. The actuating plate is connected to one end of the rotating post, and at least three corners of the actuating plate form at least three actuating parts 540. The mating part 525 has a helical hole and is rotatably connected to the bottom end of the support rod assembly 100. The actuating plate is located below the support rod assembly 100, and the movable part 522 passes through the actuating plate and helically engages with the helical hole.

[0270] For example, the touch panel has a polygonal structure, and each touch portion 540 is one corner of the polygonal structure, or at least three touch portions 540 correspond to at least three corners of the polygonal structure respectively. Other examples include the shape and form of the touch portion 520, which can be many, such as a protrusion, a flange of a cam, etc.

[0271] For example, the number of at least three actuating parts 520 can correspond to the number of at least three supporting foot assemblies 300. Of course, the number of actuating parts 520 can also be greater than the number of supporting foot assemblies 300.

[0272] In one example, please refer to Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 Figure 37 Figure 42 Figure 50 Figure 33 Figure 36 FigureThe support rod assembly 100 includes a support rod body 110 and a mounting member 120. The mounting member 120 is fixedly connected to the bottom end of the support rod body 110. A movable member 522 is slidably connected to the mounting member 120 along a rotation axis 501. A preliminary opening member 500 is rotatably connected to the mounting member 120. There are many ways to fix the mounting member 120 to the support rod body 110, such as by screws, interference fits, or rivets. By providing the mounting member 120 for connecting the preliminary opening member 500 and the movable member 522, the bottom connection structure of the support rod assembly 100 can be independently formed, facilitating the manufacturing of the support rod assembly, reducing manufacturing costs, and also facilitating the assembly of the preliminary opening member 500 with the support rod body 120. Furthermore, since the main body 110 of the support rod mainly serves to support and guide, and the mounting part 120 mainly serves to connect, the main body 110 of the support rod and the mounting part 120 can also be made of different materials. For example, the main body 110 of the support rod can be made of metal to improve its structural strength and reduce its sliding friction with the sliding sleeve assembly 200, and the mounting part 120 can be made of plastic to reduce the manufacturing cost of the mounting part 120.

[0273] Furthermore, such as Figures 56 to 59 As shown, the multi-leg bracket also includes a force-bearing member 526, which is fixedly connected to the movable member 522. The force-bearing member 526 is provided with a force-bearing part for applying a third external force.

[0274] By way of example only, the force-bearing part is the surface of the force-bearing element, or the force-bearing part is a portion of the force-bearing element.

[0275] In this embodiment, since the movable member 522 is circumferentially limited relative to the support rod assembly 100 around the rotation axis 501, when the force-bearing part is subjected to a third external force, the movable member 522 will slide but will not rotate, thereby driving the initial opening member 500 to rotate. The relative position of the force-bearing member 526 and the movable member 522 can be set according to actual needs.

[0276] For illustrative purposes only, the force-applying member 526 is fixedly connected to the bottom end of the movable member 522, and with at least three support leg assemblies 300 retracted into the support rod assembly 100, the force-applying member is exposed at the bottom end of at least three support leg assemblies 300. This makes it more convenient for the user to press the force-applying member 526. In this example, the force-applying part 526 is the surface of the force-applying member, which can be a plane, an arc surface, a sphere, etc., and is not specifically limited here.

[0277] In another example, the force-applying member 526 is fixedly connected to the bottom end of the movable member 522, and when at least three support leg assemblies 300 are in the retracted position, the force-applying member protrudes from the bottom end of at least three support leg assemblies 300. This outward protrusion of the force-applying member allows the user to apply force simply by grasping the multi-leg bracket and striking its bottom end against an external object. Therefore, the user can apply a third external force by pressing or striking the force-applying member, satisfying the user's initial opening needs for the multi-leg bracket in different usage scenarios. The fact that the force-applying member 526 protrudes from the bottom surface of at least three support leg assemblies 300 also makes it easier for the user to hold the multi-leg bracket and directly or indirectly strike the movable member 522 at the bottom end of the support rod assembly 100 against an external object, indirectly pushing the initial opening member 500 to rotate, thus rotating the initial opening member 500 from the initial position to the second position.

[0278] In some implementations, the initial opening member 500 is installed at the bottom end of the support rod assembly 100. In the initial state, the force-bearing part protrudes from the bottom end of the initial opening member 500. When at least three support foot assemblies 300 are retracted into the support rod assembly 100, the force-bearing member 526 is housed within the space enclosed by the at least three support foot assemblies 300, and the force-bearing member 526 does not protrude from the bottom end of the support foot assembly 300.

[0279] In this example, the multi-legged stand occupies a small volume when folded, making it easier to store and place. It also prevents external objects or people from accidentally touching the support components when the multi-legged stand is folded, thus avoiding the initial opening of the support leg assembly 300 due to accidental contact. Furthermore, because the support component 526 does not protrude from the bottom of the support leg assembly 300 when the multi-legged stand is folded, users can more easily hold the bottom of at least three support leg assemblies, making the multi-legged stand more convenient to use.

[0280] In this example, the initial opening member 500 is installed at the bottom end of the support rod assembly 100. In the initial state, the force-bearing part protrudes from the bottom end of the initial opening member 500 to facilitate the user to press the movable member 522, thereby indirectly pushing the initial opening member 500 to rotate, so that the initial opening member 500 can rotate from the initial position to the second position.

[0281] In this example, when the user presses the force-bearing part of the force-bearing member 526, the force-bearing member 526 and the movable member 522 slide toward the sliding sleeve assembly; for example only, when the support rod assembly is in the vertical position, when the user presses the force-bearing part of the force-bearing member 526, the force-bearing member 526 and the movable member 522 slide upward.

[0282] For ease of assembly, the force-bearing component 526 and the movable component 522 can optionally be separate. The force-bearing component 526 and the movable component 522 can then be fixedly connected by screws, snap-fits, or other methods. The force-bearing component 526 can also take many forms, such as a columnar structure or a hemispherical structure; no specific limitation is made here.

[0283] In some embodiments, please refer to Figure 58 and Figure 59 The multi-leg support also includes an elastic element 527, which is configured to provide an elastic force to the movable element 522 to reset it, so that after the removal of the third external action, the elastic element 527 drives the movable element 522 to reset by the elastic force, so that the initial opening element 500 returns to its initial position.

[0284] The elastic element 527 can be a return spring, such as a compression spring, torsion spring, or conical spring. It can also be a rubber airbag or a rubber elastic element, as long as it provides the elastic force necessary to reset the movable element 522. By providing this elastic element 527, the movable element 522 can elastically reset after the third external force is eliminated, automatically returning the initial opening member 500 to its initial position without manual reset. This prevents the initial opening member 500 from hindering the retraction of the support foot assembly 300 relative to the support rod assembly 100. Specifically, it prevents the actuating part 540 of the initial opening member 500 from hindering the retraction of the support foot assembly 300 relative to the support rod assembly 100. Understandably, the third external force must be greater than the elastic force applied by the elastic element 527 to the movable element 522 to allow the movable element 522 to slide relative to the support rod assembly 100.

[0285] Furthermore, such as Figures 58-60 , Figures 63-65 As shown, the initial opening member 500 also includes a mating part 525, at least three actuating parts 540 are connected to the mating part 525, the mating part 525 is rotatably connected to the bottom end of the support rod assembly 100, the movable member 522 is screwed into the mating part 525; the elastic member 527 is a return spring, the return spring is sleeved on the periphery of the movable member 522 and sandwiched between the force member 526 and the mating part 525.

[0286] In this embodiment, the reset spring is sleeved around the movable member 522 and sandwiched between the force-applying member 526 and the mating part 525, making the multi-leg bracket structure more compact and occupying less volume.

[0287] In this embodiment, the mating part 525 can specifically be a cylindrical, stepped cylindrical, or columnar structure. The at least three actuating parts 540 can specifically be corners or protrusions protruding from the outer peripheral wall of the mating part 525. To improve structural strength, in some embodiments, the mating part 525 and the at least three actuating parts 540 are integrally formed. To ensure the rotational reliability of the mating part 525 and the support rod assembly 100, specifically, a mounting cavity is provided at the lower end of the support rod assembly 100, and the mating part 525 is rotatably disposed within this mounting cavity. Based on the embodiment where the support rod assembly 100 has a mounting member 120, the mounting cavity is opened on the mounting member 120, and the mating part 525 and the mounting member 120 are rotatably mated.

[0288] Specifically, the elastic element 527 is sandwiched between the force-applying element 526 and the mating portion 525, and the elastic recovery direction of the elastic element 527 is arranged along the extension direction of the rotation axis 501. This allows the elastic element 527 to be a return spring, which provides stable elasticity, low cost, and easy installation. The return spring can be sandwiched between the force-applying element 526 and the mating portion 525. For example, a groove can be formed in the force-applying element 526, and an abutment wall can be provided in the inner cavity of the mating portion 525, so that one end of the return spring is embedded in the groove of the force-applying element 526, and the other end abuts against the abutment wall of the mating portion 525. In this way, the structure between the force-applying element 526, the movable element 522, the initial opening element 500, and the bottom end (mounting element 120) of the support rod assembly 100 can be more compact, occupying less space.

[0289] In other implementations, the movable element 522 is directly or indirectly subjected to a fourth external force to reset it, such as by the user directly or indirectly pulling the movable element 522. In other implementations, the movable element 522 resets itself due to its own weight, or by the combined weight of the movable element 522 and the force-bearing element 526.

[0290] Further, please refer to Figure 58 , Figure 59 , Figure 61 , Figure 65 The movable part 522 includes a guide part 523, which extends out of the top of the initial opening part 500 and is slidably connected to the support rod assembly 100. One of the guide part 523 and the support rod assembly 100 is provided with a guide groove 528, and the other is provided with a protrusion 529 that is slidably connected to the guide groove 528.

[0291] In this embodiment, the guide portion 523 extends out and is exposed on the top surface of the initial opening member to slide with the bottom end of the support rod assembly 100. A protrusion 529 can be provided on the outer peripheral wall of the guide portion 523, and a guide groove 528 can be provided at the bottom end of the support rod assembly 100; alternatively, a guide groove 528 can be provided on the outer peripheral wall of the guide portion 523, and a protrusion 529 can be provided on the inner wall of the bottom end of the support rod assembly 100. Through the sliding engagement of the protrusion 529 and the guide groove 528, the movable member 522 can slide up and down relative to the support rod assembly 100 and can be circumferentially limited. That is, the movable member 522 can only slide up and down relative to the support rod assembly 100 and cannot rotate, thus driving the initial opening member to rotate circumferentially when the movable member 522 slides up and down. The form and number of the protrusion 529 are not specifically limited; for example, the protrusion 529 can be elongated, rectangular, or similar shapes. To ensure guiding stability, for example, at least two bumps 529 are provided, and the multiple bumps 529 are spaced apart circumferentially around the guide portion 523.

[0292] In some implementations, when at least three support foot assemblies 300 are open relative to the support rod assembly 100, the user can hold the sliding sleeve assembly 200 and lift the sliding sleeve assembly 200 to cause the at least three support foot assemblies 300 to close relative to the support rod assembly 100.

[0293] Understandably, by holding the sliding sleeve assembly 200 and lifting it, the user can retract the support leg assembly 300 of the multi-legged tripod, thus facilitating the use of the multi-legged tripod. Furthermore, during the retraction of the support leg assembly 300, the magnetic member 320 can also promote the retraction of at least three support leg assemblies 300, thereby further facilitating the use of the multi-legged tripod.

[0294] For example, when the user lifts the sliding sleeve assembly 200, the multi-leg bracket is suspended in the air or in contact with the support surface.

[0295] For example, when a user holds the main cylinder 220 of the sliding assembly 200 and lifts the sliding assembly, at least three support foot assemblies 300 can retract relative to the support rod assembly 100.

[0296] In some implementations, when the support foot assembly 300 is folded into the support rod assembly 100, the support foot assembly 300 and the connecting rod 400 are magnetically attracted to each other; when the user holds the sliding sleeve assembly 200 and lifts the sliding sleeve assembly 200 to fold at least three support foot assemblies 300 relative to the support rod assembly 100, the magnetic attractor 320 magnetically attracts the corresponding connecting rod to promote the folding of at least three support foot assemblies into the support rod assembly.

[0297] In some implementations, as the user holds the sliding sleeve assembly 200 and lifts the sliding sleeve assembly 200 to cause at least three support foot assemblies 300 to retract relative to the support rod assembly, the weight of the support rod assembly 100 and the weight of the support foot assemblies 300 promote the retraction of at least three support foot assemblies 300 onto the support rod assembly 100.

[0298] For example, as the user holds the sliding assembly 200 and lifts the sliding assembly 200 to cause at least three support foot assemblies 300 to retract relative to the support rod assembly 100, the weight of the connecting arm 710, the weight of the support member 720, and the weight of the electronic terminal promote the retraction of at least three support foot assemblies 300 to the support rod assembly 100.

[0299] In some implementations, as the user holds the sliding sleeve assembly 200 and lifts the sliding sleeve assembly 200 to cause at least three support foot assemblies 300 to retract relative to the support rod assembly 100, the inertia of the support rod assembly 100 and the inertia of the support foot assemblies 300 promote the retraction of at least three support foot assemblies 300 onto the support rod assembly 100.

[0300] Intuition is understood to refer to the property of an object to remain at rest or in uniform rectilinear motion, and the inertial effect of an object refers to the effect caused by the object's inertia.

[0301] For example, as a user holds the sliding assembly 200 and lifts the multi-legged bracket, causing at least three support leg assemblies 300 to retract relative to the support rod assembly 100, the speed of the sliding assembly 200 changes, while the support leg assemblies 300 and the support rod assembly 100 maintain their original speeds. The inertia of the support leg assemblies 300 and the support rod assembly promotes the retraction of at least three support leg assemblies 300 onto the support rod assembly 100. Specifically, as a user holds the sliding assembly and lifts the multi-legged bracket, causing at least three support leg assemblies to retract relative to the support rod assembly 100, the sliding assembly 200 moves from rest to a certain speed, while the support leg assemblies 100 and the support rod assembly 200 remain stationary. The inertia of the support leg assemblies 100 and the support rod assembly 200 promotes the retraction of at least three support leg assemblies onto the support rod assembly.

[0302] For example, as a user holds the sliding assembly 200 and lifts it to retract at least three support leg assemblies 300 relative to the support rod assembly 100, the inertia of the connecting arm 710, the inertia of the support member 720, and the inertia of the electronic terminal promote the retraction of at least three support leg assemblies 300 onto the support rod assembly 100. Specifically, as a user holds the sliding assembly and lifts the multi-leg bracket to retract at least three support leg assemblies 300 relative to the support rod assembly 100, the sliding assembly 200 moves from rest to a certain speed, while the connecting arm 710, support member 720, and electronic terminal remain stationary. The connecting arm 710, support member 720, and electronic terminal promote the retraction of at least three support leg assemblies onto the support rod assembly 100.

[0303] Understandably, "bottom" and "top" should be understood according to the common usage of multi-legged brackets. The common usage of multi-legged brackets is that the multi-legged brackets are supported on a support plane. The bottom end of a component refers to the end that is close to the support plane, the top end of a component refers to the end that is far away from the support plane, the bottom surface of a component refers to the side that is close to the support plane, and the top surface of a component refers to the side that is far from the support plane.

[0304] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0305] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A method of using a multi-legged support, characterized in that, The method of use includes: Provide any of the aforementioned multi-leg brackets, wherein at least three support leg assemblies of the multi-leg bracket are retracted into the support rod assembly of the multi-leg bracket, and the initial opening member of the multi-leg bracket is in an initial position, the initial opening member having a rotation adjustment portion; Apply a rotational torque about its axis of rotation 501 to the initial opening member 500 with the user's arm; The user's arm is rotated to apply a rotational torque about the axis of rotation of the initial opening member, causing the rotation adjustment part to rotate about the axis of rotation of the initial opening member, so that the initial opening member is rotated from the initial position to the second position, so that at least three support foot assemblies are initially opened relative to the support rod assembly; At least three support foot assemblies are opened relative to the support rod assembly.

2. A method of using a multi-legged support, characterized in that, The method of use includes: A multi-leg bracket according to any one of claims is provided, wherein at least three support leg assemblies of the multi-leg bracket are retracted into a support rod assembly of the multi-leg bracket, a preliminary opening member of the multi-leg bracket is in an initial position, the preliminary opening member has a rotation adjustment part, the number of support leg assemblies is three, the number of actuating parts is three, the rotation adjustment part includes three adjustment plates, the three adjustment plates are centrally symmetrical about the rotation axis of the preliminary opening member, the three adjustment plates are respectively connected to the corresponding three actuating parts, and two adjacent adjustment plates form a force application space; Place the user's three fingers in the three applied force spaces respectively; The user's arm is rotated to apply a rotational torque about the axis of rotation of the initial opening member, causing the rotation adjustment part to rotate about the axis of rotation of the initial opening member, so that the initial opening member is rotated from the initial position to the second position, so that at least three support foot assemblies are initially opened relative to the support rod assembly; At least three support foot assemblies are opened relative to the support rod assembly.

3. The method of using the multi-legged bracket according to claim 2, characterized in that, During the process of at least three of the support foot assemblies retracting relative to the support rod assembly to initially opening relative to the support rod assembly, the sliding sleeve assembly slides along the second direction; The step of opening at least three support leg assemblies relative to the support rod assembly includes aligning the second direction with the direction of gravity, and the weight of the moving assembly causing at least three of the support leg assemblies to open relative to the support rod assembly, wherein the moving assembly includes a sliding sleeve assembly of the multi-leg bracket, at least three of the support leg assemblies, and at least three of the connecting rods of the multi-leg bracket.

4. A method of using a multi-legged support, characterized in that, The method of use includes: A multi-leg bracket as claimed in the claims is provided, wherein at least three support leg assemblies of the multi-leg bracket are retracted into a support rod assembly of the multi-leg bracket, and a preliminary opening member of the multi-leg bracket is in an initial position, the preliminary opening member having a pressure application portion; Applying pressure to the pressure part along the first direction causes the initial opening member to translate along the first direction, thereby causing the initial opening member to rotate relative to the support rod assembly, so that at least three support foot assemblies are initially opened relative to the support rod assembly; At least three support foot assemblies are opened relative to the support rod assembly.

5. The method of using the multi-legged bracket according to claim 4, characterized in that, During the process of at least three of the support foot assemblies retracting relative to the support rod assembly to initially opening relative to the support rod assembly, the sliding sleeve assembly slides along the second direction; The step of opening at least three support leg assemblies relative to the support rod assembly includes: The step of opening at least three support foot assemblies relative to the support rod assembly includes aligning the second direction with the direction of gravity, and the weight of the moving assembly causing at least three of the support foot assemblies to open relative to the support rod assembly, wherein the moving assembly includes the sliding sleeve assembly, at least three of the support foot assemblies, and at least three of the connecting rods.

6. The method of using the multi-legged bracket according to claim 4, characterized in that, During the process of at least three of the support foot assemblies retracting relative to the support rod assembly to initially opening relative to the support rod assembly, the sliding sleeve assembly slides along the second direction; The step of applying pressure to the pressure-applying portion along the first direction to cause the initial opening member to translate along the first direction includes: The pressure portion of the initial opening member impacts the support surface in a second direction, causing the initial opening member to translate relative to the support rod assembly in a first direction, the second direction being along the direction of gravity; The step of opening at least three support leg assemblies relative to the support rod assembly includes: The self-weight and inertia of the moving component cause at least three of the support leg assemblies to open relative to the support rod assembly. The moving component includes the sliding sleeve assembly of the multi-leg bracket, at least three of the support leg assemblies, and at least three of the connecting rods of the multi-leg bracket. The inertia of the moving component includes the inertia of maintaining movement in the second direction during the impact of the pressure part on the support surface in the second direction.

7. A method of using a multi-legged support, characterized in that, The method of use includes: A multi-leg bracket as claimed in the claims is provided, wherein at least three support leg assemblies of the multi-leg bracket are retracted into the support rod assembly of the multi-leg bracket, and the initial opening member of the multi-leg bracket is in an initial position; This causes at least three support foot assemblies to initially open relative to the support rod assembly; At least three support foot assemblies are opened relative to the support rod assembly.

8. The method of using the multi-legged bracket according to claim 7, characterized in that, During the process of at least three of the support foot assemblies retracting relative to the support rod assembly to initially opening relative to the support rod assembly, the sliding sleeve assembly slides along the second direction; The step of opening at least three support leg assemblies relative to the support rod assembly includes: The step of opening at least three support foot assemblies relative to the support rod assembly includes aligning the second direction with the direction of gravity, and the weight of the moving assembly causing at least three of the support foot assemblies to open relative to the support rod assembly, wherein the moving assembly includes the sliding sleeve assembly, at least three of the support foot assemblies, and at least three of the connecting rods.

9. The method of using the multi-legged bracket according to claim 7, characterized in that, During the process of at least three of the support foot assemblies retracting relative to the support rod assembly to initially opening relative to the support rod assembly, the sliding sleeve assembly slides along the second direction; The step of causing the initial opening member to translate along the first direction includes: The supporting surface of the initial opening member or the force-bearing member is used to make the initial opening member translate relative to the support rod assembly in a first direction, and the second direction is along the direction of gravity. The step of opening at least three support leg assemblies relative to the support rod assembly includes: The self-weight and inertia of the moving component cause at least three of the support leg assemblies to open relative to the support rod assembly. The moving component includes the sliding sleeve assembly of the multi-leg bracket, at least three of the support leg assemblies, and at least three of the connecting rods of the multi-leg bracket. The inertia of the moving component includes the inertia of maintaining movement in the second direction during the process of the initial opening member or the force member impacting the support surface in the second direction.

10. The method of using the multi-legged bracket according to claim 7, characterized in that, The method of use also includes the following steps: When at least three of the support foot assemblies are open relative to the support rod assembly, the user can hold the sliding sleeve assembly and lift the sliding sleeve assembly to cause the at least three support foot assemblies to close relative to the support rod assembly.

11. The method of using the multi-legged bracket according to claim 10, characterized in that, When the support leg assembly is folded into the support rod assembly, the support leg assembly and the connecting rod are magnetically attracted to each other. As the user holds the sliding assembly and lifts it, causing the at least three support leg assemblies to retract relative to the support rod assembly, the magnetic attraction of the corresponding connecting rod facilitates the retraction of the at least three support leg assemblies to the support rod assembly. The weight of the support rod assembly and the weight of the support leg assemblies further facilitate the retraction of the at least three support leg assemblies to the support rod assembly. The inertia of the support rod assembly and the inertia of the support leg assemblies also facilitate the retraction of the at least three support leg assemblies to the support rod assembly. The moving assembly includes the support rod assembly and the support leg assemblies.

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