An automatic pop-out support leg and bracket

Abstract

This utility model relates to the technical field of mobile terminal brackets, specifically disclosing an automatically pop-out support foot and bracket. The automatically pop-out support foot includes a primary arm, a secondary arm, a first elastic element, and a positioning mechanism. The secondary arm is slidably inserted into the primary arm. The first elastic element is disposed within the primary arm, with one end abutting against the inner wall of the primary arm and the other end abutting against the end of the secondary arm inserted into the primary arm. The positioning mechanism is disposed in the primary arm and is used to lock the secondary arm relative to the primary arm when the secondary arm is retracted relative to the primary arm. The first elastic element is used to cause the secondary arm to pop out relative to the primary arm when the positioning mechanism releases the lock. Due to the positioning mechanism, when the secondary arm is retracted relative to the primary arm, the positioning mechanism locks the secondary arm relative to the primary arm, thus preventing the secondary arm from popping out relative to the primary arm and ensuring reliable storage of the secondary arm relative to the primary arm.

Description

Technical Field

[0001] This utility model relates to the technical field of mobile terminal brackets, and in particular to an automatically pop-out 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 have non-adjustable support legs, while some products feature a secondary arm for automatic pop-out support legs. However, existing secondary arms typically require manual extension, meaning the stand must be fully extended in stages: first, the stand needs to be opened, then the secondary arm needs to be manually extended, resulting in low efficiency. Furthermore, if a spring-loaded secondary arm were used, it might automatically pop out when retracted, affecting its storage. Utility Model Content

[0003] Therefore, the main purpose of this utility model is to provide an automatic pop-out support foot and bracket that can automatically pop out and stably store a secondary arm.

[0004] To achieve the above objectives, this utility model provides an automatically retractable support leg, 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 inserted into the first-stage arm;

[0008] A positioning mechanism is provided on the primary arm. The positioning mechanism is used to lock the secondary arm relative to the primary arm when the secondary arm is retracted relative to the primary arm. The first elastic member is used to drive the secondary arm to pop out relative to the primary arm when the positioning mechanism cancels the locking of the secondary arm relative to the primary arm.

[0009] Optionally, the positioning mechanism includes a positioning member and a second elastic member that are connected or abutted against each other. The second elastic member is disposed inside the first-stage arm and abuts against or connects to the inner sidewall of the first-stage arm. The positioning member is movably inserted into the first-stage arm. The positioning member can squeeze the second elastic member and hold the second-stage arm under the action of external force. The positioning member can also reset under the elastic force of the second elastic member after the external force is released, so as to release the holding of the second-stage arm.

[0010] Optionally, the secondary arm is slidably inserted into one end of the primary arm and is provided with a first holding part. The positioning member includes a positioning end and an operating end disposed opposite to each other. The positioning end abuts against or connects to the second elastic member. The positioning end is provided with a second holding part. The positioning member is used to cause the positioning end to squeeze the second elastic member after the secondary arm retracts relative to the primary arm until the second holding part is locked with the first holding part of the secondary arm, thereby realizing the positioning of the secondary arm relative to the primary arm.

[0011] Optionally, the positioning mechanism further includes a guide member disposed on the inner side wall of the first-stage arm, and the second elastic member is sleeved on the guide member.

[0012] Optionally, the positioning member has a groove at one end that abuts against or connects to the second elastic member, and the second elastic member extends into the groove and abuts against or connects to the groove wall.

[0013] 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. Each first elastic element is disposed in its corresponding cavity. The primary arm includes a housing and a sleeve disposed in the housing. The two or more spaced-apart cavities are disposed in the sleeve.

[0014] 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.

[0015] To achieve the above objectives, this utility model also provides a support, comprising:

[0016] main body;

[0017] Several of the aforementioned automatically retractable support legs are openable and retractable, and the primary arm of each of the aforementioned automatically retractable support legs is rotatably connected to the main body;

[0018] A locking mechanism is provided at one end of the main body. The locking mechanism is used to lock the secondary arms of the plurality of automatic pop-out support legs so that the automatic pop-out support legs are kept in the retracted position, and to unlock the plurality of secondary arms so that the automatic pop-out support legs are automatically extended to the open position.

[0019] Optionally, the locking mechanism includes a mounting base, a third elastic element, and a sliding cover. The mounting base is disposed on the main body, and the sliding cover is slidably inserted into the mounting base. The third elastic element abuts between the mounting base and the sliding cover. The sliding cover is provided with a second engaging portion. The number of the second engaging portions is the same as the number of the automatically retractable support legs and corresponds one-to-one. The second engaging portions are used to engage and fix the secondary arms of a plurality of the automatically retractable support legs so that the automatically retractable support legs are maintained in the retracted position. The second engaging portion is a hook formed by the outward extension of the side wall of the sliding cover.

[0020] 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 automatically retractable support leg.

[0021] 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, when the positioning mechanism cancels the locking of the second-stage arm relative to the first-stage arm, the second-stage arm can pop out relative to the first-stage arm under the elastic force of the first elastic member, without the need to manually stretch the second-stage arm, making the operation convenient and quick. In addition, due to the setting of the positioning mechanism, when the second-stage arm is retracted relative to the first-stage arm, the positioning mechanism locks the second-stage arm relative to the first-stage arm, so that the second-stage arm will not pop out relative to the first-stage arm, thus ensuring the reliable storage of the second-stage arm relative to the first-stage arm. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of an automatically pop-out support leg.

[0024] Figure 2 This is an exploded view of an embodiment of an automatically pop-out support leg.

[0025] Figure 3 This is a schematic diagram of the structure after the automatic pop-out support legs conceal the housing, according to one embodiment.

[0026] Figure 4 This is a schematic diagram of the structure of the positioning member and the second elastic member in one embodiment.

[0027] Figure 5 This is a schematic diagram of the support structure when the secondary arm is retracted relative to the primary arm in one embodiment.

[0028] Figure 6 This is a schematic diagram of the support structure when the secondary arm pops out relative to the primary arm, according to one embodiment.

[0029] Figure 7 for Figure 6 Axonometric sectional view.

[0030] Figure 8 This is an exploded view of a locking mechanism according to one embodiment.

[0031] Figure 9 This is a schematic diagram of the structure of the bracket when it is retracted, according to one embodiment.

[0032] Figure 10 for Figure 9 Axonometric sectional view.

[0033] Figure 11 This is a schematic diagram of the structure of a bracket in one embodiment when it retracts and hides an automatically pop-out support leg.

[0034] Among them, 1. bracket; 100. automatically pop-out support foot; 110. primary arm; 111. housing; 112. socket; 1121. receiving cavity; 1122. clearance groove; 113. locking element; 114. baffle plate; 120. secondary arm; 121. engaging element; 1211. first engaging part; 1212. through groove; 122. plug-in rod; 1221. first holding part; 130. first elastic element; 140. positioning mechanism; 141. positioning element; 1411. positioning end; 1411A. second holding part; 1412, Operating end; 1413, Groove; 142, Second elastic element; 143, Guide element; 200, Main body; 210, Main rod; 211, Mounting part; 212, Extension part; 2121, Hanging hole; 220, Sleeve assembly; 221, Fourth elastic element; 2211, Hanging part; 222, First sliding sleeve; 223, Second sliding sleeve; 300, Locking mechanism; 310, Mounting base; 311, Connecting element; 320, Third elastic element; 330, Sliding cover; 331, Second engaging part; 400, Connecting rod.

[0035] 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

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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 (i.e., the length of the secondary arm extending relative to the primary arm gradually becomes shorter). Furthermore, when the secondary arm moves relative to the primary arm, it will not completely extend out of the primary arm and detach from it.

[0040] The following will mainly describe the specific structure of the automatically pop-out support legs.

[0041] like Figure 1-2As shown, an automatic pop-out support foot 100 includes a primary arm 110, a secondary arm 120, a first elastic element 130, and a positioning mechanism 140. The secondary arm 120 is slidably inserted into the primary arm 110. The first elastic element 130 is disposed inside the primary arm 110, with one end of the first elastic element 130 abutting against the inner wall of the primary arm 110 and the other end of the first elastic element 130 abutting against the end of the secondary arm 120 inserted into the primary arm 110. The positioning mechanism 140 is disposed in the primary arm 110. The positioning mechanism 140 is used to lock the secondary arm 120 relative to the primary arm 110 when the secondary arm 120 is retracted relative to the primary arm 110. The first elastic element 130 is used to cause the secondary arm 120 to pop out relative to the primary arm 110 when the positioning mechanism 140 releases the lock on the secondary arm 120 relative to the primary arm 110.

[0042] Because one end of the first elastic element 130 abuts against the inner wall of the primary arm 110 and the other end abuts against the end of the secondary arm 120 inserted into the primary arm 110, when the positioning mechanism 140 cancels the locking of the secondary arm 120 relative to the primary arm 110, the secondary arm 120 can pop out relative to the primary arm 110 under the elastic force of the first elastic element 130, without the need for manual stretching of the secondary arm 120, making operation convenient and quick. Furthermore, due to the positioning mechanism 140, when the secondary arm 120 is retracted relative to the primary arm 110, the positioning mechanism 140 locks the secondary arm 120 relative to the primary arm 110, thus preventing the secondary arm 120 from popping out relative to the primary arm 110, thereby ensuring reliable storage of the secondary arm 120 relative to the primary arm 110. Without the positioning mechanism 140, the secondary arm 120 might always be in the popped-out state, which could prevent the adjustment of the support leg length, and the automatically popping-out support leg 100 would occupy more space.

[0043] Specifically, the support 1 of a mobile terminal such as a mobile phone includes several automatically retractable support legs 100. When the support 1 is retracted, the several automatically retractable support legs 100 are in a closed state. At this time, the secondary arm 120 is locked by the positioning mechanism 140 to maintain the state of retracting the primary arm 110. When the support 1 is opened, the locking of the secondary arm 120 by the positioning mechanism 140 is released, and the secondary arm 120 can automatically pop out relative to the primary arm 110 under the elastic force of the first elastic member 130.

[0044] In this embodiment, the positioning mechanism 140 can lock the secondary arm 120 through various methods such as clamping, abutting, holding, and threaded engagement, as long as the locking of the secondary arm 120 relative to the primary arm 110 can be achieved. For example, the positioning mechanism 140 is a screw, which is threaded into the primary arm 110. Rotating the screw causes it to abut or extend into the secondary arm 120, thereby achieving the locking of the secondary arm 120 relative to the primary arm 110.

[0045] The first elastic element 130 can be selected as a metal or plastic spring, an elastic telescopic sleeve, etc. Specifically, in this embodiment, the first elastic element 130 is a compression spring. When the secondary arm 120 retracts relative to the primary arm 110, the first elastic element 130 is in a compressed state. Thus, when the positioning mechanism 140 unlocks the secondary arm 120, the first elastic element 130 extends and resets, causing the secondary arm 120 to pop out relative to the primary arm 110.

[0046] refer to Figure 1-3 The positioning mechanism 140 includes a positioning element 141 connected to or abutting against a second elastic element 142. The second elastic element 142 is disposed within the primary arm 110 and abuts against or connects to the inner sidewall of the primary arm 110. The positioning element 141 is movably inserted into the primary arm 110. Under the action of external force, the positioning element 141 can compress the second elastic element 142 and hold the secondary arm 120. After the external force is released, the positioning element 141 can also reset under the elastic force of the second elastic element 142 to release the holding of the secondary arm 120. In this embodiment, the second elastic element 142 can be selected as a metal or plastic spring, an elastic telescopic sleeve, etc. Specifically, in this embodiment, the second elastic element 142 is a compression spring. When the positioning element 141 holds the secondary arm 120, the second elastic element 142 is in a compressed state. Therefore, after the external force is released, the second elastic element 142 extends and resets, driving the positioning element 141 to move, thereby releasing the holding of the secondary arm 120.

[0047] Specifically, the support 1 for mobile terminals such as mobile phones includes a main body 200 and a plurality of automatically retractable support legs 100 rotatably connected to the main body 200. When the support 1 is retracted, the plurality of automatically retractable support legs 100 are closed within the main body 200. At this time, the positioning member 141 abuts against the side wall of the main body 200, thereby overcoming the elastic force of the second elastic member 142 and moving relative to the primary arm 110 (i.e., the length of the positioning member 141 inserted into the primary arm 110 gradually increases) until the positioning member 141 engages the secondary arm 120 retracted into the primary arm 110, thereby enabling the secondary arm 120 to retract into the primary arm 110. Arm 120 remains locked relative to the primary arm 110. When the bracket 1 is opened, several automatically pop-out support feet 100 open. At this time, the positioning member 141 moves away from the main body 200. After losing the support of the main body 200, the second elastic member 142 resets and rebounds, thereby driving the positioning member 141 to move in the opposite direction relative to the primary arm 110 until the positioning member 141 and the secondary arm 120 are no longer locked. Thus, the positioning mechanism 140 releases the lock on the secondary arm 120, and then the secondary arm 120 can pop out relative to the primary arm 110 under the elastic force of the first elastic member 130.

[0048] Furthermore, in actual use, the support 1 of mobile terminals such as mobile phones may also include a locking mechanism 300. The locking mechanism 300 is used to lock the secondary arms 120 of the automatic pop-out support feet 100 when the support 1 is retracted and the automatic pop-out support feet 100 are in the closed position, so that the automatic pop-out support feet 100 are kept in the closed position. At this time, the positioning member 141 abuts against the side wall of the main body 200, and the second elastic member 142 cannot return to its original position. When the locking mechanism 300 unlocks the secondary arms 120 so that the automatic pop-out support feet 100 automatically unfold to the open position, the second elastic member 142 is no longer restricted, so that it can return to its original position and drive the positioning member 141 to move in the opposite direction to the primary arm 110 until the positioning member 141 and the secondary arm 120 are no longer locked.

[0049] In this embodiment, the direction of movement of the positioning member 141 is perpendicular to the sliding direction of the secondary arm 120, so that the positioning member 141 can hold the side wall of the secondary arm 120 when it moves relative to the primary arm 110. In other embodiments, the direction of movement of the positioning member 141 and the sliding direction of the secondary arm 120 can also be at other angles, as long as the positioning member 141 can hold the positioning secondary arm 120 when it moves relative to the primary arm 110. Specifically, the axis of the second elastic member 142 is parallel to the axis of the positioning member 141, the axis of the second elastic member 142 is perpendicular to the axis of the secondary arm 120, and the axis of the secondary arm 120 is perpendicular to the axis of the primary arm 110. The secondary arm 120 can move relative to the primary arm 110 along its own axis, and the positioning member 141 can move relative to the primary arm 110 along its own axis. That is to say, the positioning member 141 is movably inserted into the primary arm 110 via the side wall of the primary arm 110.

[0050] refer to Figure 2-4The secondary arm 120 is slidably inserted into one end of the primary arm 110 and is provided with a first holding part 1221. The positioning member 141 includes a positioning end 1411 and an operating end 1412 that are disposed opposite to each other. The positioning end 1411 abuts against or connects to the second elastic member 142. The positioning end 1411 is provided with a second holding part 1411A. The positioning member 141 is used to press the second elastic member 142 after the secondary arm 120 retracts relative to the primary arm 110, until the second holding part 1411A is locked with the first holding part 1221 of the secondary arm 120, thereby realizing the positioning of the secondary arm 120 relative to the primary arm 110. In this embodiment, the first holding part 1221 is a holding groove, and the second holding part 1411A is a holding protrusion. When the holding protrusion of the positioning end 1411 is accommodated in the holding groove of the secondary arm 120, the positioning member 141 and the secondary arm 120 are held together. It can be understood that in other embodiments, the first holding part 1221 may be a holding protrusion, and the second holding part 1411A may be a holding groove. Specifically, the first holding part 1221 is disposed on the side wall of one end of the secondary arm 120 that is slidably inserted into the primary arm 110, and the second holding part 1411A is disposed on the side wall of the positioning end 1411. When the second elastic member 142 is extended (i.e., not compressed), the operating end 1412 extends out of the side wall of the primary arm 110.

[0051] refer to Figure 2 The positioning mechanism 140 also includes a guide member 143, which is disposed on the inner sidewall of the primary arm 110, and the second elastic member 142 is sleeved on the guide member 143. Specifically, the guide member 143 guides the extension and retraction of the second elastic member 142, preventing the second elastic member 142 from deviating significantly or bending. In this embodiment, the guide member 143 is fixedly disposed on the inner sidewall of the primary arm 110; the guide member 143 may be, but is not limited to, a guide post, a guide tube, or a guide rod.

[0052] refer to Figure 4 The positioning member 141 has a groove 1413 at one end that abuts against or connects to the second elastic member 142. The second elastic member 142 extends into the groove 1413 and abuts against or connects to the groove wall of the groove 1413. Specifically, the groove 1413 limits the end of the second elastic member 142 that abuts against or connects to the positioning member 141 within the groove 1413, making the setting of the second elastic member 142 more stable and reliable. In this embodiment, the groove 1413 is formed at the end of the positioning end 1411 opposite to the operating end 1412. In this embodiment, the second elastic member 142 is sleeved on the guide member 143, with one end abutting against the inner sidewall of the primary arm 110, and the other end extending into the groove 1413 of the positioning member 141 and abutting against the groove wall of the groove 1413. It can be understood that in other embodiments, the second elastic member 142 can be fixedly connected to the inner sidewall of the primary arm 110 at one end and fixedly connected to the groove wall of the groove 1413 at the other end.

[0053] refer to Figure 2-3 The primary arm 110 has two or more spaced-apart receiving cavities 1121 extending along its own axis. The number of first elastic elements 130 is the same as the number of receiving cavities 1121 and corresponds one-to-one. Each first elastic element 130 is disposed within its corresponding receiving cavity 1121. Specifically, the arrangement of two or more first elastic elements 130 makes the movement of the secondary arm 120 relative to the primary arm 110 along the receiving cavity 1121 more stable and reliable. By setting the first elastic elements 130 to the receiving cavities 1121 in a one-to-one correspondence, interference between different first elastic elements 130 is avoided, and the receiving cavity 1121 guides the extension and retraction of the first elastic elements 130. In this embodiment, there are two receiving cavities 1121 and two first elastic elements 130. It can be understood that in other embodiments, there may be three or more receiving cavities 1121 and two first elastic elements 130.

[0054] refer to Figure 1-2 The primary arm 110 includes a housing 111 and a socket 112 disposed on the housing 111. Two or more spaced-apart receiving cavities 1121 are formed in the socket 112. Specifically, the length of the housing 111 is greater than the length of the socket 112, so that when the secondary arm 120 is retracted into the primary arm 110, the housing 111 can simultaneously cover the socket 112 and the portion of the secondary arm 120 that protrudes from the socket 112, thus making it look more aesthetically pleasing.

[0055] Furthermore, the socket 112 is fixed to the housing 111 by a locking member 113, which may be, but is not limited to, a screw or bolt; further still, the first-stage arm 110 also includes a cover plate 114, which is disposed on the side of the socket 112 through which the locking member 113 passes, to cover the locking member 113, thereby making it look more aesthetically pleasing.

[0056] refer to Figure 2-3 The secondary arm 120 includes a connecting engagement member 121 and a connecting rod 122. The number of connecting rods 122 is the same as the number of receiving cavities 1121 and corresponds one-to-one. One end of each connecting rod 122 is slidably inserted into its corresponding receiving cavity 1121 and abuts against the corresponding first elastic member 130. The engagement member 121 has a first engagement portion 1211. Specifically, two or more connecting rods 122 are inserted into the corresponding receiving cavities 1121 of the sleeve 112, making the movement of the connecting rods 122 relative to the sleeve 112 more reliable and stable. The extension direction of the connecting rods 122 is the same as the extension direction of the receiving cavities 1121. In this embodiment, the connecting rods 122 and the receiving cavities 1121 are adapted to each other.

[0057] In this embodiment, there are two plug-in rods 122. A first holding part 1221 is provided on the plug-in rod 122. Specifically, a first holding part 1221 is provided on one side of each of the two plug-in rods 122. A second holding part 1411A is provided on each side of the opposite side of the positioning end 1411. When the secondary arm 120 retracts into the primary arm 110 and the positioning mechanism 140 locks the secondary arm 120, the two second holding parts 1411A on the opposite side of the positioning end 1411 respectively hold the first holding parts 1221 of the two plug-in rods 122, thereby achieving reliable locking of the secondary arm 120.

[0058] In this embodiment, the first engaging portion 1211 is a slot. Furthermore, in actual use, the locking mechanism 300 of the bracket 1 is provided with a second engaging portion 331 that matches the slot. The second engaging portion 331 may be, but is not limited to, a protrusion, a hook, or other structures. It is understood that in other embodiments, the first engaging portion 1211 may be a protrusion, a hook, or other structures, and the second engaging portion 331 of the locking mechanism 300 may be a slot that matches the protrusion.

[0059] refer to Figure 2-3 The side wall of the engaging member 121 is provided with a through groove 1212, and the first engaging part 1211 is disposed on the groove wall of the through groove 1212. Furthermore, in actual use, the second engaging part 331 of the locking mechanism 300 of the bracket 1 extends into the through groove 1212 and engages with the first engaging part 1211.

[0060] Furthermore, the length of the housing 111 is greater than the length of the socket 112 plus the locking member 121, so that when the insertion rod 122 is inserted into the first-stage arm 110, the housing 111 can simultaneously cover and block the socket 112 and the locking member 121, thus making the automatically pop-out support foot 100 look more aesthetically pleasing. See details. Figure 5 The bracket 1 has a secondary arm 120 that retracts into the primary arm 110. At this time, only the housing 111 of the primary arm 110 can be seen from the outside, which is aesthetically pleasing and simple.

[0061] In other embodiments, the automatically retractable support foot 100 may also include a third-level arm, and the cooperation relationship between the third-level arm and the second-level arm 120 is the same as the cooperation relationship between the second-level arm 120 and the first-level arm 110. It is understood that the automatically retractable support foot 100 may also include more levels of arms.

[0062] The following will mainly describe the specific structure of the stent.

[0063] like Figure 5-6As shown, a bracket 1 includes several openable and retractable automatic pop-out support legs 100, a main body 200, and a locking mechanism 300. The primary arm 110 of each automatic pop-out support leg 100 is rotatably connected to the main body 200. The locking mechanism 300 is disposed at one end of the main body 200. The locking mechanism 300 is used to lock the secondary arms 120 of the several automatic pop-out support legs 100 so that the automatic pop-out support legs 100 are kept in the retracted position. The locking mechanism 300 is also used to unlock the several secondary arms 120 so that the automatic pop-out support legs 100 automatically unfold to the open position.

[0064] When the bracket 1 needs to be opened to support the mobile terminal or other external devices, the locking mechanism 300 is operated to unlock the secondary arms 120 of several automatically pop-out support feet 100, allowing each automatically pop-out support foot 100 to unfold. At this time, the positioning mechanism 140 moves away from the main body 200 under the action of the automatically pop-out support feet 100, thereby releasing the abutment between the positioning member 141 of the positioning mechanism 140 and the main body 200. Then, the second elastic member 142 resets and springs back, thereby driving the positioning member 141 to move relative to the primary arm 110 until the second holding part 1411A of the positioning end 1411 of the positioning member 141 releases the hold part 1221 of the secondary arm 120. Thus, the positioning mechanism 140 releases the lock on the secondary arm 120, and the secondary arm 120 can pop out relative to the primary arm 110 under the elastic force of the first elastic member 130. No manual operation is required; only the locking mechanism 300 needs to be operated to fully unfold the bracket 1, making the operation convenient and quick. When the bracket 1 needs to be retracted, operate the secondary arms 120 of each automatically retractable support leg 100 to retract the secondary arms 120 into the corresponding primary arms 110. Then, close the automatically retractable support legs 100 until they are closed and enclose the main body 200. During this process, the positioning member 141 gradually approaches and abuts against the main body 200, causing the positioning member 141 to grip and compress the second elastic member 142 until the second holding part 1411A of the positioning end 1411 of the positioning member 141 engages with the secondary arm 120. The first holding part 1221 holds the secondary arm 120, thereby the positioning mechanism 140 locks the secondary arm 120. Finally, the locking mechanism 300 locks the secondary arm 120 with several automatically retractable support feet 100, thereby locking the several automatically retractable support feet 100 and preventing them from unfolding. This keeps the positioning member 141 in a state of abutting against the main body 200, and the second elastic member 142 cannot rebound and extend. That is, the second holding part 1411A of the positioning end 1411 of the positioning member 141 and the first holding part 1221 of the secondary arm 120 remain in a holding state.

[0065] In this embodiment, there are three automatically retractable support legs 100. Further, two of the three automatically retractable support legs 100 are angled in pairs, thus reliably supporting the main body 200. When the three automatically retractable support legs 100 are closed, they adhere to the main body 200, enveloping it. Further still, the automatically retractable support legs 100 are arc-shaped, allowing them to adhere to the surface of the main body 200 and envelop it. In this case, the secondary arm 120 of the automatically retractable support legs 100 is locked by the locking mechanism 300. It is understood that in other embodiments, there may be four or more automatically retractable support legs 100. Specifically, the housing 111 of the primary arm 110 is arc-shaped, the socket 112 of the primary arm 110 faces the main body 200, and the housing 111 is located on the side of the socket 112 away from the main body 200. Three or more arc-shaped housings 111 can be formed into a roughly cylindrical shape, making it look more aesthetically pleasing and providing a gripping grip.

[0066] refer to Figure 6-8 The locking mechanism 300 includes a mounting base 310, a third elastic element 320, and a sliding cover 330. The mounting base 310 is disposed on the main body 200, and the sliding cover 330 is slidably inserted into the mounting base 310. The third elastic element 320 abuts between the mounting base 310 and the sliding cover 330. The side wall of the sliding cover 330 is provided with a second engaging part 331. The number of second engaging parts 331 is the same as the number of automatically pop-out support feet 100 and they correspond one-to-one. The second engaging parts 331 are used to engage and fix the first engaging part 1211 of the secondary arm 120 so that the automatically pop-out support feet 100 are maintained in the retracted position.

[0067] Specifically, when the bracket 1 needs to be opened, the sliding cover 330 is pressed relative to the mounting base 310 so that the sliding cover 330 overcomes the elastic force of the third elastic member 320. As a result, several second engaging parts 331 of the sliding cover 330 gradually disengage from the first engaging parts 1211 of the corresponding secondary arm 120, thereby releasing the locking mechanism 300 from locking several secondary arms 120. Then, several automatically pop-out support feet 100 unfold. During this process, the positioning member 141 gradually moves away from the main body 200. After losing the support of the main body 200, the second elastic member 142 resets and rebounds, thereby driving the positioning member 141 to move relative to the primary arm 110 until the second engaging part 1411A of the positioning member 141 and the first engaging part 1221 of the secondary arm 120 are unengaged, thereby releasing the positioning of the secondary arm 120 relative to the primary arm 110. Then, the secondary arm 120 pops out relative to the primary arm 110 under the elastic force of the first elastic member 130.

[0068] Furthermore, under normal conditions, the sliding cover 330 protrudes from the mounting base 310, making it easy to press the sliding cover 330 when the bracket 1 needs to be opened. Additionally, the main body 200 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 330 overcomes the elastic force of the third elastic element 320 and retracts into the mounting base 310. This causes the second engaging portion 331 to gradually move away from and exit from the first engaging portion 1211 of the secondary arm 120, thereby releasing the locking mechanism 300 relative to the secondary arm 120. Then, the support foot 100 automatically pops open and unfolds, and the secondary arm 120 automatically pops out relative to the primary arm 110. 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.

[0069] refer to Figure 7-8 The mounting base 310 has a connector 311, which passes through the sliding cover 330 and is disposed on the mounting base 310. A third elastic member 320 is sleeved on the connector 311 and abuts against both the mounting base 310 and the sliding cover 330. Specifically, the connector 311 guides the extension and retraction of the third elastic member 320. Further, a screw passes through the sliding cover 330 and connects to the connector 311. The screw nut limits the sliding cover 330, preventing it from detaching from the mounting base 310. The sliding cover 330 is similar to a button, and is pressable on the mounting base 310. In this embodiment, the connector 311 is a connecting post; in other embodiments, the connector 311 may have other shapes.

[0070] In other embodiments, when the automatically pop-out support leg 100 includes a three-stage arm or more stages, the locking mechanism 300 is used to lock the last stage arm.

[0071] refer to Figure 6 The bracket 1 also includes a connecting rod 400, one end of which is hinged to the locking mechanism 300, and the other end is hinged to the automatically retractable support foot 100. In this embodiment, the other end of the connecting rod 400 is hinged to the primary arm 110 of the automatically retractable support foot 100.

[0072] refer to Figure 1-2 and Figure 5 The primary arm 110 has a recessed groove 1122 along its own axis, and the other end of the connecting rod 400 extends into the recessed groove 1122 and is hinged to the primary arm 110. Specifically, this arrangement allows the connecting rod 400 to be accommodated in the recessed groove 1122 when the bracket 1 is retracted and the several automatically retractable support legs 100 are closed.

[0073] refer to Figure 6The main body 200 includes a main rod 210 and a sleeve assembly 220 connected to each other. The first-stage arm 110 of each automatic pop-out support foot 100 is rotatably connected to the main rod 210. The locking mechanism 300 is located at the end of the sleeve assembly 220 away from the main rod 210.

[0074] refer to Figure 7 and Figure 9-11 The sleeve assembly 220 includes a fourth elastic element 221 and a first sliding sleeve 222 and a second sliding sleeve 223 that are sleeved and connected together. The first sliding sleeve 222 is fixedly connected to the main rod 210, and the second sliding sleeve 223 is fixedly connected to the locking mechanism 300. One end of the fourth elastic element 221 is connected to the main rod 210, and the other end of the fourth elastic element 221 is connected to the locking mechanism 300. In this embodiment, the fourth elastic element 221 can be selected as a metal or plastic spring, an elastic telescopic sleeve, etc. Preferably, the first elastic element 130 is a tension spring. In this embodiment, the first sliding sleeve 222 is an inner tube, the second sliding sleeve 223 is an outer tube, and the fourth elastic element 221 is located inside the first sliding sleeve 222 and the second sliding sleeve 223. In other embodiments, the first sliding sleeve 222 can also be an outer tube, and the second sliding sleeve 223 can be an inner tube. The second sliding sleeve 223 is fixedly connected to the mounting base 310 of the locking mechanism 300.

[0075] Specifically, when the bracket 11 needs to be opened, the locking mechanism 300 is operated to unlock several secondary arms 120. Under the retraction pull of the fourth elastic element 221, the second sliding sleeve 223 moves closer to the main rod 210 through the locking mechanism 300, and then drives the connecting rod 400 to rotate, thereby driving the automatic spring-opening support foot 100 to rotate and open. Then the secondary arm 120 pops out relative to the primary arm 110. When the bracket 1 needs to be retracted, the secondary arm 120 is retracted into the primary arm 110, and the second sliding sleeve 223 is pulled relative to the first sliding sleeve 222 so that the second sliding sleeve 223 overcomes the elastic force of the fourth elastic element 221 and gradually moves away from the main rod 210. Then the connecting rod 400 is driven to rotate in the opposite direction, thereby driving the automatic spring-opening support foot 100 to rotate and close. When the three automatic spring-opening support feet 100 are closed, they fit against the sleeve assembly 220 and wrap around the sleeve assembly 220. At this time, the locking mechanism 300 locks the secondary arms 120 of several automatic spring-opening support feet 100.

[0076] In this embodiment, the sidewalls of the first sliding sleeve 222 and the second sliding sleeve 223 are respectively provided with through holes, and the sidewalls of the main rod 210 and the locking mechanism 300 are respectively provided with protrusions adapted to the through holes. The first sliding sleeve 222 and the main rod 210 are fixedly connected to the protrusions through the through holes, and the second sliding sleeve 223 and the locking mechanism 300 are fixedly connected to the protrusions through the through holes. It can be understood that the first sliding sleeve 222 and the main rod 210, and the second sliding sleeve 223 and the locking mechanism 300 can also be fixedly connected by other applicable methods.

[0077] refer to Figure 7 The fourth elastic element 221 has hanging portions 2211 at both ends. The main rod 210 and the locking mechanism 300 are respectively provided with hanging holes 2121. The two hanging portions 2211 of the fourth elastic element 221 are respectively hung in the hanging holes 2121 of the main rod 210 and the locking mechanism 300. In this embodiment, the hanging portion 2211 is hook-shaped. It is understood that, depending on the requirements, other methods can be used to achieve the connection between the fourth elastic element 221 and the main rod 210 and the locking mechanism 300. The hanging hole 2121 is opened in the mounting base 310, and one of the hanging portions 2211 of the fourth elastic element 221 is hung in the hanging hole 2121 of the mounting base 310. One end of the connecting rod 400 is hinged to the mounting base 310 of the locking mechanism 300. In other embodiments, one end of the connecting rod 400 can also be hinged to the sliding cover 330 of the locking mechanism 300. Furthermore, the end of the connector 311 away from the sliding cover 330 passes through the mounting base 310, and the mounting hole 2121 is opened at the end of the connector 311 away from the sliding cover 330.

[0078] refer to Figure 6-7 The main rod 210 is generally cylindrical and includes a mounting portion 211 and an extension portion 212. The extension portion 212 is located at the end of the mounting portion 211 opposite to the sleeve assembly 220. In this embodiment, one end of the extension portion 212 passes through the mounting portion 211 and extends into the first sliding sleeve 222. The mounting hole 2121 of the main rod 210 is formed at the end of the extension portion 212 that extends into the first sliding sleeve 222. The extension portion 212 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 212 can also be of other shapes; for example, the extension portion 212 can be a threaded hole for screwing into a stud on an external device or apparatus. In addition, the extension portion 212 can also be a clamping assembly.

[0079] The operation process of the aforementioned support is roughly as follows:

[0080] When bracket 1 needs to be opened, the sliding cover 330 is pressed against the mounting base 310, causing the sliding cover 330 to overcome the elastic force of the third elastic element 320 and move towards the main rod 210. This causes the second engaging portion 331 of the sliding cover 330 to gradually move away from the first engaging portion 1211 of the secondary arm 120 and exit from the first engaging portion 1211, thereby releasing the locking mechanism 300 from locking the rotation of the secondary arm 120. After the secondary arm 120 is released, the fourth elastic element 221 of the sleeve assembly 220 automatically retracts and resets, causing the second sliding sleeve 223 to move relative to the first sliding sleeve 222 towards the main rod 210 via the mounting base 310 connected to the fourth elastic element 221. Simultaneously, this causes the connecting rod 400, rotatably connected to the mounting base 310, to rotate. The automatic spring-opening support foot 100, which is rotatably connected to the connecting rod 400, rotates and opens. During the rotation and opening of the automatic spring-opening support foot 100, the positioning mechanism 140 moves away from the side wall of the main body 200 under the action of the automatic spring-opening support foot 100. As a result, the positioning member 141 of the positioning mechanism 140 is no longer in contact with the main body 200. Then, the second elastic member 142 returns to its original position and moves the positioning member 141 relative to the first arm 110 until the second holding part 1411A of the positioning end 1411 of the positioning member 141 is no longer in contact with the first holding part 1221 of the second arm 120. As a result, the positioning mechanism 140 releases the lock on the second arm 120 to pop out. Then, the second arm 120 pops out relative to the first arm 110 under the elastic force of the first elastic member 130.

[0081] When the bracket 1 needs to be retracted, operate the secondary arms 120 of each automatic pop-out support foot 100 to retract the secondary arms 120 into the corresponding primary arms 110. Then, pull the second sliding sleeve 223 relative to the first sliding sleeve 222 so that the second sliding sleeve 223 overcomes the elastic force of the fourth elastic element 221 and gradually moves away from the main rod 210. Then, drive the connecting rod 400 to rotate in the opposite direction to the previous one, thereby driving the automatic pop-out support foot 100 to rotate and close. The secondary arm 120's through groove 1212 presses the second engaging part 331 of the sliding cover 330 so that the sliding cover 330 overcomes the elastic force of the third elastic element 320 and is pressed until the first engaging part 1211 and the second engaging part 331 are engaged and fixed. Then, the sliding cover 330 is in the second... Under the elastic force of the three elastic elements 320, the secondary arms 120 of the automatic pop-out support feet 100 are reset. At this time, the locking mechanism 300 engages and fixes the secondary arms 120 of the automatic pop-out support feet 100. During the rotation and closing process of the automatic pop-out support feet 100, the positioning mechanism 140 gradually approaches and abuts against the side wall of the main body 200 under the drive of the automatic pop-out support feet 100. As a result, the positioning element 141 squeezes the second elastic element 142, so that the positioning element 141 moves relative to the primary arm 110 until the second holding part 1411A of the positioning end 1411 of the positioning element 141 engages with the first holding part 1221 of the secondary arm 120. Thus, the positioning mechanism 140 locks the secondary arm 120 relative to the primary arm 110, ensuring that the secondary arm 120 will not pop out relative to the primary arm 110.

[0082] 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. An automatically retractable 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; A positioning mechanism is provided on the primary arm. The positioning mechanism is used to lock the secondary arm relative to the primary arm when the secondary arm is retracted relative to the primary arm. The first elastic member is used to drive the secondary arm to pop out relative to the primary arm when the positioning mechanism cancels the locking of the secondary arm relative to the primary arm.

2. The automatically retractable support leg as described in claim 1, characterized in that, The positioning mechanism includes a positioning element and a second elastic element that are connected or abutted to each other. The second elastic element is disposed inside the first-stage arm and abuts against or connects to the inner side wall of the first-stage arm. The positioning element is movably inserted into the first-stage arm. The positioning element can squeeze the second elastic element and hold the second-stage arm under the action of external force. The positioning element can also reset under the elastic force of the second elastic element after the external force is released, so as to release the holding of the second-stage arm.

3. The automatically retractable support leg as described in claim 2, characterized in that, The secondary arm is slidably inserted into one end of the primary arm and is provided with a first holding part. The positioning member includes a positioning end and an operating end that are disposed opposite to each other. The positioning end abuts against or connects to the second elastic member. The positioning end is provided with a second holding part. The positioning member is used to cause the positioning end to squeeze the second elastic member after the secondary arm retracts relative to the primary arm until the second holding part is locked with the first holding part of the secondary arm, thereby realizing the positioning of the secondary arm relative to the primary arm.

4. The automatically retractable support leg as described in claim 2, characterized in that, The positioning mechanism further includes a guide member disposed on the inner side wall of the first-stage arm, and the second elastic member is sleeved on the guide member.

5. The automatically retractable support leg as described in claim 2, characterized in that, The positioning member has a groove at one end that abuts against or connects to the second elastic member, and the second elastic member extends into the groove and abuts against or connects to the groove wall.

6. The automatically retractable support leg as described in claim 1, characterized in that, 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 they correspond one-to-one. Each first elastic element is disposed in its corresponding cavity. The primary arm includes a housing and a sleeve disposed on the housing. The two or more spaced-apart cavities are disposed on the sleeve.

7. The automatically retractable support leg as described in claim 6, 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.

8. A support, characterized in that, include: main body; A plurality of automatically retractable support legs as described in any one of claims 1-7, wherein the primary arm of each of the automatically retractable support legs is rotatably connected to the main body; A locking mechanism is provided at one end of the main body. The locking mechanism is used to lock the secondary arms of the plurality of automatic pop-out support legs so that the automatic pop-out support legs are kept in the retracted position, and is also used to unlock the plurality of secondary arms so that the automatic pop-out support legs are automatically extended to the open position.

9. The bracket as described in claim 8, 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 main body, and the sliding cover is slidably inserted into the mounting base. The third elastic element abuts between the mounting base and the sliding cover. The sliding cover is provided with a second engaging portion. The number of the second engaging portions is the same as the number of the automatically retractable support feet and corresponds one-to-one. The second engaging portions are used to engage and fix the secondary arms of a plurality of the automatically retractable support feet so that the automatically retractable support feet are maintained in the retracted position. The second engaging portion is a hook formed by the outward extension of the side wall of the sliding cover.

10. The bracket as described in claim 8, 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 automatically spring-opening support foot.

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