A support leg and bracket

Abstract

This utility model relates to the technical field of mobile terminal brackets, specifically disclosing a support foot and bracket. The support foot includes a primary arm, a secondary arm, and a first elastic element. The secondary arm is slidably inserted into the primary arm, and the first elastic element is disposed within the primary arm. One end of the first elastic element abuts against the inner wall of the primary arm, and the other end of the first elastic element abuts against the end of the secondary arm inserted into the primary arm. Because one end of the first elastic element abuts against the inner wall of the primary arm and the other end abuts against the end of the secondary arm inserted into the primary arm, the secondary arm can automatically pop out relative to the primary arm under the elastic force of the first elastic element when there is no external force restriction, eliminating the need for manual stretching of the secondary arm and making operation convenient and quick.

Description

Technical Field

[0001] This utility model relates to the technical field of mobile terminal brackets, and in particular to a support foot and bracket. Background Technology

[0002] With the widespread use of mobile devices, stands for smartphones and other mobile devices have become indispensable tools in people's daily lives. Traditional stands generally do not have adjustable leg lengths, and some products have secondary arms. However, these secondary arms require manual extension, meaning the stand needs to be fully extended in stages. To use the stand, you must first open the stand and then manually extend the secondary arm, resulting in low efficiency and negatively impacting the user experience. Utility Model Content

[0003] Therefore, the main objective of this utility model is to provide a support foot and bracket for a secondary arm that can automatically pop out.

[0004] To achieve the above objectives, this utility model provides a support foot, comprising:

[0005] First-stage arm;

[0006] The secondary arm is slidably inserted into the primary arm;

[0007] A first elastic element is disposed inside the first-stage arm, with one end abutting against the inner wall of the first-stage arm and the other end abutting against the end of the second-stage arm that is inserted into the first-stage arm.

[0008] The present invention has the following advantages: since one end of the first elastic member abuts against the inner wall of the first-stage arm and the other end abuts against the end of the second-stage arm inserted into the first-stage arm, the second-stage arm can automatically pop out relative to the first-stage arm under the elastic force of the first elastic member when there is no external force restriction, without the need to manually stretch the second-stage arm, making the operation convenient and quick.

[0009] Optionally, the secondary arm can automatically pop out relative to the primary arm under the elastic force of the first elastic element after the external force is released.

[0010] Optionally, the primary arm has two or more spaced-apart cavities extending along its own axis, the number of the first elastic elements is the same as the number of the cavities and corresponds one-to-one, and each first elastic element is disposed in its corresponding cavity.

[0011] Optionally, the primary arm includes a housing and a sleeve disposed on the housing, and two or more spaced-apart receiving cavities are formed in the sleeve.

[0012] Optionally, the secondary arm includes a locking member and a plug-in rod connected together. The number of plug-in rods is the same as the number of receiving cavities and corresponds one-to-one. One end of each plug-in rod is slidably inserted into its corresponding receiving cavity and abuts against the corresponding first elastic member. The locking member has a first locking portion.

[0013] To achieve the above objectives, this utility model also provides a support, comprising:

[0014] Main rod;

[0015] The sleeve assembly is connected to the main rod;

[0016] Several of the aforementioned support legs are openable and retractable, and the primary arm of each support leg is rotatably connected to the main rod;

[0017] A locking mechanism is provided at one end of the sleeve assembly away from the main rod. The locking mechanism is used to lock the secondary arms of the plurality of support legs to keep the support legs in the retracted position, and to unlock the plurality of secondary arms to allow the support legs to automatically unfold to the open position.

[0018] Optionally, the bracket further includes a connecting rod, one end of which is hinged to the locking mechanism, and the other end of which is hinged to the primary arm or the secondary arm of the support leg.

[0019] Optionally, the first-stage arm has a clearance groove along its own axis, and the other end of the connecting rod extends into the clearance groove and is hinged to the second-stage arm.

[0020] Optionally, the sleeve assembly includes a second elastic element and a first sliding sleeve and a second sliding sleeve that are sleeved and connected together. The first sliding sleeve is fixedly connected to the main rod, and the second sliding sleeve is fixedly connected to the locking mechanism. One end of the second elastic element is connected to the main rod, and the other end of the second elastic element is connected to the locking mechanism.

[0021] Optionally, the second elastic member has hanging parts at both ends, and the main rod and the locking mechanism are respectively provided with hanging holes. The two hanging parts of the second elastic member are respectively hung in the hanging holes of the main rod and the locking mechanism.

[0022] Optionally, the locking mechanism includes a mounting base, a third elastic element, and a sliding cover. The mounting base is disposed on the sleeve assembly, the sliding cover is slidably inserted into the mounting base, the third elastic element abuts between the mounting base and the sliding cover, and a second engaging portion is provided at the end of the sliding cover away from the mounting base. The number of the second engaging portions is the same as the number of the support legs and they correspond one-to-one. The second engaging portions are used to engage and fix the secondary arm of a plurality of the support legs so that the support legs are maintained in the folded position.

[0023] Optionally, the mounting base has a connector that passes through the sliding cover and is disposed on the mounting base, and the third elastic member is sleeved on the connector and abuts against the mounting base and the sliding cover respectively.

[0024] The present invention has the following advantages: when the bracket needs to be opened to support the mobile terminal or other external devices, the locking mechanism is operated to unlock several secondary arms so that the support feet automatically unfold to the open position. At the same time, the secondary arms also automatically pop out relative to the secondary arms under the elastic force of the first elastic element. The pop-out of the secondary arms does not require manual operation. Thus, the bracket can be fully unfolded by operating the locking mechanism, which is convenient and quick. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the devices shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the support when it is deployed, according to one embodiment.

[0027] Figure 2 for Figure 1 Axonometric sectional view.

[0028] Figure 3 This is an exploded view of the support leg in one embodiment.

[0029] Figure 4 This is a schematic diagram of the structure of a bracket when one of its support legs is closed and hidden, according to one embodiment.

[0030] Figure 5 for Figure 4 Axonometric sectional view.

[0031] Figure 6 This is a schematic diagram of the locking mechanism according to one embodiment.

[0032] Figure 7 for Figure 6 Axonometric sectional view.

[0033] Among them, 1. bracket; 100. main rod; 110. mounting part; 120. extension part; 121. hanging hole; 200. sleeve assembly; 210. second elastic element; 211. hanging part; 220. first sliding sleeve; 230. second sliding sleeve; 300. leg assembly; 310. support leg; 311. primary arm; 3111. housing; 3112. socket; 3112A. receiving cavity; 3112B 3113, Alternating groove; 3114, Locking element; 3115, Baffle plate; 312, Secondary arm; 3121, Engaging element; 3121A, First engaging part; 3121B, Limiting groove; 3122, Inserting rod; 313, First elastic element; 400, Locking mechanism; 410, Mounting base; 411, Connecting element; 420, Third elastic element; 430, Sliding cover; 431, Second engaging part; 500, Connecting rod.

[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, "and / or" throughout the text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] This utility model provides a bracket that can be used to support shooting devices such as cameras and video cameras, as well as electronic devices such as mobile phones and tablets, and can also be used to support any other suitable external equipment, devices, or mechanisms, such as gimbals, monitors, etc.

[0038] Glossary: ​​"Secondary arm popping out / automatically popping out" refers to the secondary arm gradually extending a longer length relative to the primary arm; "secondary arm retracting / retracting" refers to the secondary arm gradually extending / inserting a longer length relative to the primary arm (that is, the length of the secondary arm extending relative to the primary arm gradually becomes shorter).

[0039] The following will mainly describe the specific structure of the support feet.

[0040] like Figure 1-3 As shown, a support foot 310 includes a primary arm 311, a secondary arm 312, and a first elastic member 313. The secondary arm 312 is slidably inserted into the primary arm 311, and the first elastic member 313 is disposed inside the primary arm 311. One end of the first elastic member 313 abuts against the inner wall of the primary arm 311, and the other end of the first elastic member 313 abuts against the end of the secondary arm 312 inserted into the primary arm 311.

[0041] Since one end of the first elastic element 313 of this application abuts against the inner wall of the first-stage arm 311 and the other end abuts against the end of the second-stage arm 312 inserted into the first-stage arm 311, the second-stage arm 312 can automatically pop out relative to the first-stage arm 311 under the elastic force of the first elastic element 313 when there is no external force restriction, without the need to manually stretch the second-stage arm 312, making the operation convenient and quick.

[0042] Specifically, the support 1 of a mobile terminal such as a mobile phone includes several support feet 310. When the support 1 is retracted, the several support feet 310 are in a closed state. At this time, the secondary arm 312 is restricted by external force (such as the locking structure of the support) and kept in the state of retracting the primary arm 311. When the support 1 is opened, without the restriction of external force (such as the locking structure of the support), the secondary arm 312 can automatically pop out relative to the primary arm 311 under the elastic force of the first elastic member 313.

[0043] The first elastic element 313 can be selected as a metal or plastic spring, an elastic telescopic sleeve, etc. Specifically, in this embodiment, the first elastic element 313 is a compression spring. When the support foot 310 is retracted (that is, when the secondary arm 312 retracts relative to the primary arm 311), the first elastic element 313 is in a compressed state. Thus, when there is no external force restricting the secondary arm 312, the first elastic element 313 extends and resets, and drives the secondary arm 312 to pop out relative to the primary arm 311.

[0044] refer to Figure 2-3The primary arm 311 has two or more spaced-apart receiving cavities 3112A extending along its own axis. The number of first elastic elements 313 is the same as the number of receiving cavities 3112A and corresponds one-to-one. Each first elastic element 313 is disposed in its corresponding receiving cavity 3112A. Specifically, the arrangement of two or more first elastic elements 313 makes the movement of the secondary arm 312 relative to the primary arm 311 along the receiving cavity 3112A more stable and reliable. By setting the first elastic elements 313 to the receiving cavities 3112A in a one-to-one correspondence, interference between different first elastic elements 313 is avoided, and the receiving cavity 3112A plays a guiding role in the extension and retraction of the first elastic elements 313.

[0045] refer to Figure 1 and Figure 4 The primary arm 311 includes a housing 3111 and a socket 3112 disposed on the housing 3111, and two or more spaced accommodating cavities 3112A are opened on the socket 3112.

[0046] Furthermore, the socket 3112 is fixed to the housing 3111 by a locking member 3113, which may be, but is not limited to, a screw or bolt; further still, the primary arm 311 also includes a cover plate 3114, which is disposed on the side of the socket 3112 through which the locking member 3113 passes, to cover the locking member 3113, thereby making it look more aesthetically pleasing.

[0047] refer to Figure 3 The secondary arm 312 includes a connecting locking member 3121 and a connecting rod 3122. The number of connecting rods 3122 is the same as the number of receiving cavities 3112A and corresponds one-to-one. One end of each connecting rod 3122 is slidably inserted into its corresponding receiving cavity 3112A and abuts against the corresponding first elastic member 313. The locking member 3121 has a first locking portion 3121A. Specifically, two or more connecting rods 3122 are inserted into the corresponding receiving cavity 3112A of the sleeve 3112, making the movement of the connecting rods 3122 relative to the sleeve 3112 more reliable and stable. The extension direction of the connecting rods 3122 is the same as the extension direction of the receiving cavity 3112A. In this embodiment, the connecting rods 3122 and the receiving cavities 3112A are adapted to each other.

[0048] In other embodiments, the support foot 310 may also include a third-level arm, and the cooperation relationship between the third-level arm and the second-level arm 312 is the same as the cooperation relationship between the second-level arm 312 and the first-level arm 311. It is understood that the support foot 310 may also include more levels of arms.

[0049] The following will mainly describe the specific structure of the stent.

[0050] like Figure 1-3As shown, a support 1 includes a main rod 100, a sleeve assembly 200, several openable and retractable support legs 310, and a locking mechanism 400. The sleeve assembly 200 is connected to the main rod 100. Each support leg 310 includes a primary arm 311, a secondary arm 312, and a first elastic element 313. The primary arm 311 of each support leg 310 is rotatably connected to the main rod 100. The secondary arm 312 is slidably inserted into the primary arm 311. The first elastic element 313 is disposed within the primary arm 311. One end of the first elastic member 313 abuts against the inner wall of the first-stage arm 311, and the other end of the first elastic member 313 abuts against the end of the second-stage arm 312 inserted into the first-stage arm 311. The locking mechanism 400 is located at the end of the sleeve assembly 200 away from the main rod 100. The locking mechanism 400 is used to engage and fix the second-stage arm 312 of the several support feet 310 so that the support feet 310 are kept in the retracted position, and to unlock the several second-stage arms 312 so that the support feet 310 automatically unfold to the open position.

[0051] When it is necessary to open the bracket 1 to support the mobile terminal or other external devices, the locking mechanism 400 is operated to unlock the secondary arms 312 of several support feet 310, so that each support foot 310 is opened under the action of the sleeve assembly 200. In addition, since one end of the first elastic member 313 abuts against the inner wall of the primary arm 311 and the other end of the first elastic member 313 abuts against the end of the secondary arm 312 inserted into the primary arm 311, the secondary arm 312 automatically pops out relative to the primary arm 311 under the elastic force of the first elastic member 313. No manual operation is required. Only the locking mechanism 400 needs to be operated to realize the full unfolding of the bracket 1, which is convenient and quick.

[0052] In this embodiment, the tripod assembly 300 includes three openable and retractable support legs 310. Further, two of the three support legs 310 are at 120-degree angles to each other, thereby reliably supporting the main rod 100. When the three support legs 310 are retracted, they fit against the sleeve assembly 200, enclosing the sleeve assembly 200. Further still, the support legs 310 are arc-shaped, and the three arc-shaped support legs 310 can adhere to the surface of the sleeve assembly 200, completely enclosing the sleeve assembly 200. At this time, the secondary arm 312 of the support leg 310 engages and is fixed with the locking mechanism 400. It is understood that in other embodiments, the tripod assembly 300 may include four or more support legs 310.

[0053] Several openable and retractable support legs 310 form a leg assembly 300, which provides support for the bracket.

[0054] refer to Figure 1 and Figure 4The primary arm 311 includes a housing 3111 rotatably connected to the main rod 100 and a sleeve 3112 disposed on the housing 3111. Two or more spaced-apart receiving cavities 3112A are formed in the sleeve 3112. Specifically, the housing 3111 is arc-shaped, and three or more arc-shaped housings 3111 can be arranged into a roughly cylindrical shape, which is more aesthetically pleasing and provides a gripping surface.

[0055] refer to Figure 3 The secondary arm 312 includes a connecting engaging member 3121 and a connecting rod 3122. The number of connecting rods 3122 is the same as the number of receiving cavities 3112A and corresponds one-to-one. One end of each connecting rod 3122 is slidably inserted into its corresponding receiving cavity 3112A and abuts against the corresponding first elastic member 313. The engaging member 3121 has a first engaging portion 3121A. The locking mechanism 400 is used to engage and fix several first engaging portions 3121A to keep the support leg 310 in the retracted position. In this embodiment, the first engaging portion 3121A is a slot, and the locking mechanism 400 is provided with a protrusion adapted to the slot. It can be understood that in other embodiments, the first engaging portion 3121A may also be a protrusion, and the locking mechanism 400 may be provided with a slot adapted to the protrusion. In this embodiment, the first engaging portion 3121A includes two slots, and the number of protrusions of the locking mechanism 400 is the same as the number of slots and they correspond one-to-one, thus making the engagement and fixation more reliable and stable. It is understood that in other embodiments, the first engaging portion 3121A may also include three or more slots.

[0056] refer to Figure 3 The engaging member 3121 has a limiting groove 3121B on the side facing the sleeve assembly 200. The limiting groove 3121B is used to accommodate the locking mechanism 400. The first engaging part 3121A is located on the groove wall of the limiting groove 3121B away from the plug rod 3122. So when the several support legs 310 are closed, the space enclosed by the limiting grooves 3121B of the several engaging members 3121 accommodates the locking mechanism 400. At the same time, the first engaging part 3121A is engaged and fixed with the locking mechanism 400.

[0057] In other embodiments, when the support foot 310 includes a third or more arms, the locking mechanism 400 is used to engage and secure the last arm.

[0058] refer to Figure 1-2The bracket 1 also includes a connecting rod 500, one end of which is hinged to the locking mechanism 400, and the other end is hinged to the primary arm 311 or the secondary arm 312 of the support foot 310. Specifically, when the connecting rod 500 is hinged to the primary arm 311 of the support leg 310, the connecting rod 500 only rotates relative to the primary arm 311 without moving during the opening and closing of the support leg 310. When the connecting rod 500 is hinged to the secondary arm 312 of the support leg 310, the connecting rod 500 can move relative to the primary arm 311 along with the secondary arm 312 during the opening and closing of the support leg 310. Because the connecting rod 500 can move relative to the primary arm 311 along with the secondary arm 312, the opening of the support leg 310 is synchronized with the pop-out of the secondary arm 312, and the closing of the support leg 310 is synchronized with the retraction of the secondary arm 312 relative to the primary arm 311. As a result, the opening speed of the support leg 310 is faster, and the retraction of the secondary arm 312 relative to the primary arm 311 and the closing of the support leg 310 do not need to be operated separately, making the operation simpler and more convenient.

[0059] refer to Figure 2-3 The primary arm 311 has a recessed groove 3112B along its own axis, and the other end of the connecting rod 500 extends into the recessed groove 3112B and is hinged to the secondary arm 312. Specifically, this arrangement ensures that when the secondary arm 312 extends or retracts relative to the primary arm 311, the other end of the connecting rod 500 moves along the recessed groove 3112B with the secondary arm 312. In this embodiment, the recessed groove 3112B is provided on the sleeve 3112 and communicates with the receiving cavity 3112A, so that the connecting rod 500 can partially extend into the receiving cavity 3112A through the recessed groove 3112B and be hinged to the secondary arm 312.

[0060] refer to Figure 2 and Figure 4-5 The sleeve assembly 200 includes a second elastic element 210 and a first sliding sleeve 220 and a second sliding sleeve 230 that are sleeved and connected together. The first sliding sleeve 220 is fixedly connected to the main rod 100, and the second sliding sleeve 230 is fixedly connected to the locking mechanism 400. One end of the second elastic element 210 is connected to the main rod 100, and the other end of the second elastic element 210 is connected to the locking mechanism 400. In this embodiment, the second elastic element 210 can be selected as a metal or plastic spring, an elastic telescopic sleeve, etc. Preferably, the first elastic element 210 is a tension spring. In this embodiment, the first sliding sleeve 220 is an inner tube, the second sliding sleeve 230 is an outer tube, and the second elastic element 210 is located inside the first sliding sleeve 220 and the second sliding sleeve 230. In other embodiments, the first sliding sleeve 220 can also be an outer tube, and the second sliding sleeve 230 can be an inner tube.

[0061] Specifically, when the bracket 1 needs to be opened, the locking mechanism 400 is operated to unlock several secondary arms 312. Under the retraction pull of the second elastic element 210, the second sliding sleeve 230 moves closer to the main rod 100 through the locking mechanism 400, and then drives the connecting rod 500 to rotate, thereby driving the support foot 310 to rotate and open. When the bracket 1 needs to be retracted, the second sliding sleeve 230 is pulled relative to the first sliding sleeve 220 so that the second sliding sleeve 230 overcomes the elastic force of the second elastic element 210 and gradually moves away from the main rod 100. Then the connecting rod 500 is driven to rotate in the opposite direction, thereby driving the support foot 310 to rotate and close. When the three support feet 310 are retracted, they fit against the sleeve assembly 200 and wrap around the sleeve assembly 200. At this time, the locking mechanism 400 engages and fixes the secondary arms 312 of several support feet 310.

[0062] In this embodiment, the sidewalls of the first sliding sleeve 220 and the second sliding sleeve 230 are respectively provided with through holes, and the sidewalls of the main rod 100 and the locking mechanism 400 are respectively provided with protrusions adapted to the through holes. The first sliding sleeve 220 and the main rod 100 are fixedly connected to the protrusions through the through holes, and the second sliding sleeve 230 and the locking mechanism 400 are fixedly connected to the protrusions through the through holes. It can be understood that the first sliding sleeve 220 and the main rod 100, and the second sliding sleeve 230 and the locking mechanism 400 can also be fixedly connected by other applicable methods.

[0063] refer to Figure 2 and Figure 5 The second elastic member 210 has hanging portions 211 at both ends. The main rod 100 and the locking mechanism 400 each have hanging holes 121. The two hanging portions 211 of the second elastic member 210 are respectively hung in the hanging holes 121 of the main rod 100 and the locking mechanism 400. In this embodiment, the hanging portion 211 is a hook. It is understood that other methods can be used to connect the second elastic member 210 to the main rod 100 and the locking mechanism 400 as needed.

[0064] refer to Figure 6-7 and Figure 1-2The locking mechanism 400 includes a mounting base 410, a third elastic element 420, and a sliding cover 430. The mounting base 410 is disposed on the sleeve assembly 200. The sliding cover 430 is slidably inserted into the mounting base 410. The third elastic element 420 abuts against the mounting base 410 and the sliding cover 430. A second engaging portion 431 is provided at the end of the sliding cover 430 away from the mounting base 410. The number of second engaging portions 431 is the same as the number of support legs 310 and corresponds one-to-one. The second engaging portions 431 are used to engage and fix the secondary arms 312 of several support legs 310, so that the support legs 310 are maintained in the retracted position. The number of second engaging portions 431 is the same as the number of support legs 310 and corresponds one-to-one, that is, each second engaging portion 431 corresponds to one first engaging portion 3121A. In this embodiment, each second engaging portion 431 includes two protrusions, and the two protrusions of the second engaging portion 431 correspond one-to-one with the two slots of the first engaging portion 3121A. It is understood that in other embodiments, the second engaging portion 431 may also include more than three protrusions, as long as they correspond one-to-one with the slots of the first engaging portion 3121A. The hanging hole 121 is opened in the mounting base 410, and one of the hanging portions 211 of the second elastic member 210 is hung in the hanging hole 121 of the mounting base 410. One end of the connecting rod 500 is hinged to the mounting base 410 of the locking mechanism 400. In other embodiments, one end of the connecting rod 500 may also be hinged to the sliding cover 430 of the locking mechanism 400.

[0065] Specifically, when bracket 1 needs to be opened, the sliding cover 430 is pressed relative to the mounting base 410 so that the sliding cover 430 overcomes the elastic force of the third elastic element 420. This causes the second engaging part 431 to gradually move away from and exit from the first engaging part 3121A of the secondary arm 312, thereby releasing the locking mechanism 400 from its engagement with the secondary arm 312. Subsequently, the second elastic element 210 retracts and resets, causing the second sliding sleeve 230 to move closer to the main rod 100 via the mounting base 410 of the locking mechanism 400. The movement of the second sliding sleeve 230 causes the connecting rod 500 to rotate, which in turn causes the support foot 310 to rotate and open. When bracket 1 needs to be retracted, the first sliding sleeve 220 is pulled... The second sliding sleeve 230 overcomes the elastic force of the second elastic element 210 and gradually moves away from the main rod 100, then drives the connecting rod 500 to rotate in the opposite direction, thereby driving the support foot 310 to rotate and close. During the rotation and closing process of the support foot 310, the first engaging part 3121A of the secondary arm 312 abuts against the sliding cover 430 from the side, so that the sliding cover 430 overcomes the elastic force of the third elastic element 420 and is pressed until the first engaging part 3121A and the second engaging part 431 are engaged and fixed. Then the sliding cover 430 is reset under the elastic force of the third elastic element 420. At this time, the locking mechanism 400 engages and fixes the secondary arm 312 of several support feet 310.

[0066] Furthermore, under normal conditions, the sliding cover 430 protrudes from the mounting base 410, making it easy to press the sliding cover 430 when the bracket 1 needs to be opened. Additionally, the main rod 100 can be held, and the bracket 1 can be placed directly on the ground or other supporting platform. Under the weight of the bracket 1 and / or the impact force when placed on the ground, the sliding cover 430 overcomes the elastic force of the third elastic element 420 and retracts into the mounting base 410. This causes the second engaging portion 431 to gradually move away from and exit from the first engaging portion 3121A of the secondary arm 312, thereby releasing the locking mechanism 400 from its engagement with the secondary arm 312. Then, the support foot 310 automatically unfolds, and the secondary arm 312 automatically pops out relative to the primary arm 311. Specifically, with this configuration, the bracket 1 of this invention can automatically and fully unfold when placed on the ground or other supporting platform, making it convenient and quick to use.

[0067] refer to Figure 6-7 The mounting base 410 has a connector 411, which passes through the sliding cover 430 and is disposed on the mounting base 410. A third elastic member 420 is sleeved on the connector 411 and abuts against both the mounting base 410 and the sliding cover 430. Specifically, the connector 411 guides the extension and retraction of the third elastic member 420. Furthermore, a screw passes through the sliding cover 430 and connects to the connector 411. The screw nut limits the sliding cover 430, preventing it from detaching from the mounting base 410. The sliding cover 430 is similar to a button, and is movably mounted on the mounting base 410.

[0068] In this embodiment, the end of the connector 411 away from the sliding cover 430 passes through the mounting base 410, and the hanging hole 121 is opened at the end of the connector 411 away from the sliding cover 430; the connector 411 is a connecting post, and in other embodiments, the connector 411 may also be other shapes.

[0069] refer to Figure 1-2 The main rod 100 is generally cylindrical and includes a mounting portion 110 and an extension portion 120. The extension portion 120 is located at the end of the mounting portion 110 opposite to the sleeve assembly 200. In this embodiment, one end of the extension portion 120 passes through the mounting portion 110 and extends into the first sliding sleeve 220. The mounting hole 121 of the main rod 100 is formed at the end of the extension portion 120 that extends into the first sliding sleeve 220. The extension portion 120 is a protruding post with external threads for screwing into a threaded hole on an external device or apparatus. It is understood that the extension portion 120 can also be of other shapes; for example, the extension portion 120 can be a threaded hole for screwing into a stud on an external device or apparatus. In addition, the extension portion 120 can also be a clamping assembly.

[0070] The operation process of the aforementioned support 1 is roughly as follows:

[0071] When bracket 1 needs to be opened, the sliding cover 430 is pressed relative to the mounting base 410 so that the sliding cover 430 overcomes the elastic force of the third elastic element 420 and moves towards the main rod 100. As a result, the second engaging part 431 of the sliding cover 430 gradually moves away from the first engaging part 3121A of the secondary arm 312 and exits from the first engaging part 3121A, thereby releasing the locking mechanism 400 from locking the secondary arm 312. After the secondary arm 312 is released, the second elastic element 210 of the sleeve assembly 200 automatically retracts and resets, so that the second sliding sleeve 230 moves relative to the first sliding sleeve 220 towards the main rod 100 through the mounting base 410 connected to the second elastic element 210. At the same time, the connecting rod 500 rotatably connected to the mounting base 410 rotates, thereby causing the support foot 310 rotatably connected to the connecting rod 500 to rotate and open.

[0072] Furthermore, after the locking mechanism 400 engages and fixes with the secondary arm 312 of the sleeve assembly 200, the first elastic element 313 of the sleeve assembly 200 automatically extends and resets, and the secondary arm 312 automatically pops out relative to the primary arm 311 under the elastic force of the first elastic element 313.

[0073] When the bracket 1 needs to be retracted, the second sliding sleeve 230 is pulled relative to the first sliding sleeve 220 so that the second sliding sleeve 230 overcomes the elastic force of the second elastic element 210 and gradually moves away from the main rod 100. Then, the connecting rod 500 is driven to rotate in the opposite direction, thereby driving the support foot 310 to rotate and close. At the same time, the second-level arm 312 is pressed relative to the first-level arm 311 so that the second-level arm 312 overcomes the elastic force of the first elastic element 313 and gradually increases to retract the length of the first-level arm 311. During the rotation and closing process of the support foot 310, the first engaging part 3121A of the second-level arm 312 abuts against the second engaging part 431 of the sliding cover 430 from the side so that the sliding cover 430 overcomes the elastic force of the third elastic element 420 and is pressed until the first engaging part 3121A and the second engaging part 431 are engaged and fixed. Then, the sliding cover 430 is reset under the elastic force of the third elastic element 420. At this time, the locking mechanism 400 engages and fixes the second-level arms 312 of several support feet 310.

[0074] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent device transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A support leg, characterized in that, include: First-stage arm; The secondary arm is slidably inserted into the primary arm; A first elastic element is disposed inside the first-stage arm, with one end abutting against the inner wall of the first-stage arm and the other end abutting against the end of the second-stage arm inserted into the first-stage arm.

2. The support leg as described in claim 1, characterized in that, The secondary arm can automatically pop out relative to the primary arm under the elastic force of the first elastic element after the external force is released.

3. The support leg as described in claim 1, characterized in that, The first-stage arm has two or more spaced-apart cavities extending along its own axis. The number of the first elastic elements is the same as the number of the cavities and they correspond one-to-one. Each first elastic element is disposed in its corresponding cavity.

4. The support leg as described in claim 3, characterized in that, The primary arm includes a housing and a sleeve disposed on the housing, and two or more spaced-apart receiving cavities are formed in the sleeve.

5. The support leg as described in claim 3, characterized in that, The secondary arm includes a locking member and a plug-in rod connected together. The number of plug-in rods is the same as the number of receiving cavities and corresponds one-to-one. One end of each plug-in rod is slidably inserted into its corresponding receiving cavity and abuts against the corresponding first elastic member. The locking member has a first locking portion.

6. A stent, characterized in that, include: Main rod; The sleeve assembly is connected to the main rod; A plurality of openable and retractable support legs as described in any one of claims 1-5, wherein the primary arm of each support leg is rotatably connected to the main rod; A locking mechanism is provided at one end of the sleeve assembly away from the main rod. The locking mechanism is used to lock the secondary arms of the plurality of support legs to keep the support legs in the retracted position, and to unlock the plurality of secondary arms to allow the support legs to automatically unfold to the open position.

7. The bracket as described in claim 6, characterized in that, The bracket also includes a connecting rod, one end of which is hinged to the locking mechanism, and the other end of which is hinged to the primary arm or the secondary arm of the support leg.

8. The stent as described in claim 7, characterized in that, The first-stage arm has a clearance groove along its own axis, and the other end of the connecting rod extends into the clearance groove and is hinged to the second-stage arm.

9. The bracket as described in claim 6, characterized in that, The sleeve assembly includes a second elastic element and a first sliding sleeve and a second sliding sleeve that are sleeved and connected together. The first sliding sleeve is fixedly connected to the main rod, and the second sliding sleeve is fixedly connected to the locking mechanism. One end of the second elastic element is connected to the main rod, and the other end is connected to the locking mechanism.

10. The bracket as described in claim 6, characterized in that, The locking mechanism includes a mounting base, a third elastic element, and a sliding cover. The mounting base is disposed on the sleeve assembly, and the sliding cover is slidably inserted into the mounting base. The third elastic element abuts between the mounting base and the sliding cover. A second engaging portion is provided at the end of the sliding cover away from the mounting base. The number of second engaging portions is the same as the number of support legs and they correspond one-to-one. The second engaging portions are used to engage and fix the secondary arms of a plurality of support legs so that the support legs are maintained in the folded position.

Images