Gravity support

Abstract

The utility model relates to the technical field of electronic product supports, and provides a gravity support which comprises a placing base, a clamping assembly, a transmission assembly and a limiting assembly. The placing seat is used for placing equipment, the clamping assembly is movably connected with the placing seat, and the transmission assembly is connected with the clamping assembly and used for driving the clamping assembly to move in the clamping direction so as to clamp or loosen the equipment on the placing seat. The limiting assembly is arranged between the clamping assembly and the transmission assembly and / or arranged between the clamping assembly and the containing base so as to limit movement of at least part of the clamping assembly in the non-clamping direction. Through the design, when the clamping assembly moves in the clamping direction, equipment can be clamped or loosened, the clamping function is achieved, meanwhile, the clamping assembly is limited by the limiting assembly in the non-clamping direction, shaking of the clamping assembly in the non-clamping direction can be reduced, the stability of the clamping assembly is improved, and the clamping efficiency is improved. Therefore, noise generated by shaking is reduced, and the use experience of the gravity support is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic product brackets, in particular to a gravity bracket. Background Art

[0002] Currently, there is a gravity stand on the market for supporting products such as mobile phones. When the mobile phone is placed on the base of the gravity stand, the mobile phone's own gravity presses the base to move downward. When the base moves, it can drive the two side clamps of the mobile phone stand to move toward each other through the transmission structure, thereby clamping the mobile phone.

[0003] The gravity bracket in the related art, the base and the clamping arm are movable parts, which are easily affected by environmental factors and shake, thereby generating noise, affecting the user experience of the gravity bracket. Utility Model Content

[0004] In view of this, the utility model provides a gravity bracket to solve the problem that the existing gravity bracket is prone to shaking and generating noise.

[0005] To solve the above problems, the technical solution of the utility model is achieved as follows:

[0006] A gravity support comprises: a placement seat for placing equipment; a clamping assembly movably connected to the placement seat; a transmission assembly connected to the clamping assembly, the transmission assembly being used to drive the clamping assembly to move along a clamping direction to clamp or release the equipment; a limit assembly arranged between the clamping assembly and the transmission assembly, and / or between the clamping assembly and the placement seat to limit the movement of at least part of the clamping assembly in a non-clamping direction.

[0007] In some embodiments, the limiting assembly includes a first limiting member located between the clamping assembly and the transmission assembly, the first limiting member being used to limit the movement of at least part of the clamping assembly in the non-clamping direction; and / or, the limiting assembly includes a second limiting member located between the clamping assembly and the placement seat, the second limiting member being used to limit the movement of at least part of the clamping assembly in the non-clamping direction.

[0008] In some embodiments, the limiting assembly includes a first limiting member located between the clamping assembly and the transmission assembly and a second limiting member located between the clamping assembly and the placement seat; wherein the first limiting member and the second limiting member are respectively located on opposite sides of the clamping assembly.

[0009] In some embodiments, the limiting assembly includes a first limiting member located between the clamping assembly and the transmission assembly, and one end of the first limiting member used for abutment is set as a protrusion with a smooth curved surface; and / or, the limiting assembly includes a second limiting member located between the clamping assembly and the placement seat, and one end of the second limiting member used for abutment is set as a protrusion with a smooth curved surface.

[0010] In some embodiments, the clamping assembly includes: at least two clamping arms, at least two of which are arranged opposite to each other, and each of the clamping arms is movably connected to the placement seat; a base support is movably connected to the placement seat; the transmission assembly is connected to each of the clamping arms and the base support, and the transmission assembly is at least used to drive each of the clamping arms to move synchronously when the base support moves, so as to clamp or release the device; wherein the limiting assembly includes a first limiting member, which is arranged between the clamping arm and the transmission assembly, and / or between the base support and the transmission assembly; and / or, the limiting assembly includes a second limiting member, which is arranged between the clamping arm and the placement seat, and / or between the base support and the placement seat.

[0011] In some embodiments, the gravity support also includes: an elastic structure, arranged between the placement seat and the transmission assembly, the limiting assembly includes a first limiting member located between the clamping assembly and the transmission assembly, and the elastic structure is used to apply a force to the transmission assembly so that the first limiting member maintains contact with the transmission assembly and the clamping assembly.

[0012] In some embodiments, the elastic structure includes an elastic member and an abutment joint, one end of the elastic member is connected to the placement seat, the other end of the elastic member is connected to the abutment joint, and the abutment joint abuts against the transmission assembly.

[0013] In some embodiments, the portion of the abutment head that abuts against the transmission assembly is configured as a smooth curved surface.

[0014] In some embodiments, the gravity support also includes a mounting seat rotatably connected to the placement seat, and the transmission assembly includes: a transmission wheel movably connected to the placement seat and connected to the clamping assembly, the transmission wheel is used to drive the clamping assembly to move relative to the placement seat to clamp or release the device; a first clutch member is fixedly connected to the transmission wheel; a second clutch member is connected to the mounting seat and is located between the mounting seat and the first clutch member, the second clutch member is used to contact and transmit with the first clutch member when the placement seat rotates relative to the mounting seat, so as to drive the transmission wheel to drive the clamping assembly to further clamp the device; wherein, the first limit member is at least arranged between the clamping assembly and the transmission wheel, and the two ends of the elastic structure are respectively connected to the mounting seat and the first clutch member.

[0015] In some embodiments, a guide hole is formed through the second clutch member, and the elastic structure passes through the guide hole to connect the mounting seat and the first clutch member.

[0016] The embodiment of the utility model provides a gravity support, including a placement seat, a clamping assembly, a transmission assembly and a limit assembly, wherein the transmission assembly is used to drive the clamping assembly to move along the clamping direction, and the limit assembly is used to limit the movement of at least part of the clamping assembly in the non-clamping direction. Through such a design, the clamping assembly can clamp or release the device when moving along the clamping direction to achieve the clamping function. At the same time, the clamping assembly is limited by the limit assembly in the non-clamping direction, which can reduce the shaking of the clamping assembly in the non-clamping direction, improve the stability of the clamping assembly, thereby reducing the noise generated by the shaking, and improving the user experience of the gravity support. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a gravity support provided by an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 The cross-sectional schematic diagram of the gravity support shown in the figure, in which some structures are omitted;

[0019] Figure 3 This is another cross-sectional schematic diagram of the gravity support provided by the embodiment of the utility model;

[0020] Figure 4 yes Figure 3 A local enlarged schematic diagram of point A in the middle.

[0021] Description of reference numerals:

[0022] 1. Place the seat;

[0023] 2. Clamping assembly; 21. Clamping arm; 22. Bottom bracket;

[0024] 3. Transmission assembly; 31. Transmission wheel; 32. First clutch member; 33. Second clutch member; 331. Guide hole;

[0025] 4. Limiting assembly; 41. First limiting member; 42. Second limiting member;

[0026] 5. elastic structure; 51. elastic member; 52. abutment joint;

[0027] 6. Mounting seat. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the utility model will not be described separately.

[0030] In the following description, the terms "first\second\..." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside" and "inside" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the corresponding schematic diagrams, which may or may not be the left and right directions in normal use.

[0031] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0032] like Figure 1 and Figure 2As shown, the embodiment of the utility model provides a gravity support, including a placement seat 1, a clamping assembly 2, a transmission assembly 3 and a limit assembly 4. The placement seat 1 is used for placing equipment, the clamping assembly 2 is movably connected to the placement seat 1, the transmission assembly 3 is connected to the clamping assembly 2, and the transmission assembly 3 is used to drive the clamping assembly 2 to move along the clamping direction to clamp or release the equipment on the placement seat 1. The limit assembly 4 is arranged between the clamping assembly 2 and the transmission assembly 3, and / or between the clamping assembly 2 and the placement seat 1 to limit the movement of at least part of the clamping assembly 2 in the non-clamping direction.

[0033] Specifically, the placement seat 1 can usually be used to place mobile terminal devices such as mobile phones and tablet computers. The clamping assembly 2 can move relative to the placement seat 1, and at least some of the components in the clamping assembly 2 move in opposite directions, and the device on the placement seat 1 can be clamped or released by moving closer to or farther away from each other. The transmission assembly 3 is connected to the clamping assembly 2, and can usually be connected in a transmission manner such as a gear and a rack meshing. When some components of the clamping assembly 2 are moved by force, the transmission assembly 3 can transmit power to other components of the clamping assembly 2, so that the various components of the clamping assembly 2 can move synchronously. In this way, as long as the weight of the device on the placement seat 1 presses some components of the clamping assembly 2, or the user actively applies force to some components of the clamping assembly 2, the various components of the clamping assembly 2 can be moved synchronously to achieve the function of clamping the device.

[0034] Specifically, the clamping direction described in the embodiment of the utility model refers to the direction in which the components of the clamping assembly 2 move in order to clamp or release the device. Depending on the different directions of movement between different components, the clamping direction may not be unique. For example, in some designs, such as Figure 1 and Figure 2 As shown, when using a gravity bracket, the device is placed on the placement seat 1 along the front-to-back direction shown in the figure, with the screen of the device facing forward, and a part of the clamping assembly 2 approaches from the left and right sides of the screen to clamp the device, while another part of the clamping assembly 2 is supported under the device and moves downward under the gravity of the device. At this time, the left-right direction and the up-down direction are both clamping directions, and the remaining directions are non-clamping directions, including directions perpendicular to the clamping direction, directions forming an angle with the clamping direction, etc. For example, the front-to-back direction shown in the figure is a non-clamping direction perpendicular to the clamping direction. It can be understood that, according to different designs, the clamping directions may be the same or different, and the corresponding non-clamping directions may also be the same or different.

[0035] It should be noted that no matter what design is adopted, the limit component 4 is used to limit the movement of the clamping component 2 in the non-clamping direction, rather than to limit the movement of the clamping component 2 along the clamping direction, so as to reduce the adverse effects on the clamping function of the clamping component 2. To achieve the limiting effect, optionally, the limit component 4 can be set on the clamping component 2 and abut against the transmission component 3 and / or the placement seat 1, or it can be set on the transmission component 3 and / or the placement seat 1 and abut against the clamping component 2, or it can be set on the placement seat 1, the clamping component 2 and the transmission component 3 respectively. The limit component 4 can be an independently manufactured component or can be integrally formed with other components. It is only necessary to ensure that at least the limit component 4 is in contact with the clamping component 2 and at the same time in contact with at least one of the transmission component 3 or the placement seat 1. In this way, when the clamping direction is determined, it is only necessary to set the abutment direction of the limit component 4 to the non-clamping direction, for example Figure 1 and Figure 2 The front-to-back direction shown can limit the movement of the clamping assembly 2 along the non-clamping direction, so that the clamping assembly 2 can only move along the clamping direction to clamp or release the device, and the stability of the movement of the clamping assembly 2 is better.

[0036] It is understandable that the limit assembly 4 can be used to limit the movement of all parts of the clamping assembly 2 in the non-clamping direction, or it can be used to limit the movement of only some parts of the clamping assembly 2 in the non-clamping direction. For example, when the adverse effects such as shaking and noise generated by some parts of the clamping assembly 2 are significantly greater than those of other parts, the limit assembly 4 can be set only at the position corresponding to the part with greater influence, so as to limit the part with greater influence.

[0037] The gravity bracket provided by the embodiment of the utility model includes a placement seat 1, a clamping assembly 2, a transmission assembly 3 and a limit assembly 4. The transmission assembly 3 is used to drive the clamping assembly 2 to move along the clamping direction to clamp or release the equipment on the placement seat 1, and by arranging the limit assembly 4 between the clamping assembly 2 and the transmission assembly 3, and / or between the clamping assembly 2 and the placement seat 1 to limit the movement of at least part of the clamping assembly 2 in the non-clamping direction, the clamping assembly 2 can only move along the clamping direction, which can improve the stability of the clamping assembly 2 and reduce the problem of shaking and noise caused by environmental interference.

[0038] It should be noted that the gravity bracket provided in the embodiment of the utility model is suitable for various usage scenarios of existing gravity brackets, especially for vehicle-mounted scenarios. It can reduce the problem of bracket shaking and noise caused by bumps during vehicle driving, and significantly improve the user's product usage experience and driving experience.

[0039] In some embodiments, Figures 2 to 4As shown, the limiting component 4 includes a first limiting member 41 located between the clamping component 2 and the transmission component 3. Optionally, the first limiting member 41 can be arranged on the clamping component 2 and abut against the transmission component 3, or can be arranged on the transmission component 3 and abut against the clamping component 2, or can be arranged on the clamping component 2 and the transmission component 3 respectively, wherein the portion of the first limiting member 41 arranged on the clamping component 2 abuts against the transmission component 3, and the portion of the first limiting member 41 arranged on the transmission component 3 abuts against the clamping component 2. Optionally, the first limiting member 41 can be an independently manufactured component, or can be integrally formed with the clamping component 2 or the transmission component 3. As an example, Figure 2 and Figure 4 The first position-limiting member 41 shown in the figure is disposed on the transmission assembly 3 in an integrally formed manner and abuts against the clamping assembly 2 . The above design does not constitute a limitation on the arrangement of the first position-limiting member 41 .

[0040] In some embodiments, Figures 2 to 4 As shown, the limiting component 4 includes a second limiting member 42 located between the clamping component 2 and the placement seat 1. Optionally, similar to the first limiting member 41, the second limiting member 42 can be set on the clamping component 2, or on the placement seat 1, or on the clamping component 2 and the placement seat 1 respectively. The second limiting member 42 can be an independently manufactured component, or can be integrally formed with the clamping component 2 or the placement seat 1. As an example, Figure 2 and Figure 4 The second limiting member 42 shown in the figure is disposed on the placement seat 1 in an integrally formed manner and abuts against the clamping assembly 2 . The above design does not constitute a limitation on the arrangement of the second limiting member 42 .

[0041] It is understandable that in the embodiment of the utility model, the gravity bracket may be provided with only the first limiter 41 or the second limiter 42, or both the first limiter 41 and the second limiter 42. When both the first limiter 41 and the second limiter 42 are provided, the first limiter 41 and the second limiter 42 may be provided on opposite sides of the clamping assembly 2, specifically, on opposite sides of the clamping assembly 2 along the non-clamping direction. For example, Figure 2 and Figure 4 The first limiting member 41 and the second limiting member 42 shown in the figure are respectively arranged on opposite sides of the clamping assembly 2 along the front-back direction. When arranged in this way, the two sides of the clamping assembly 2 are respectively subjected to the abutment and limiting effects of the first limiting member 41 and the second limiting member 42, which has a better limiting effect on the clamping assembly 2 and can further improve the stability of the clamping assembly 2.

[0042] In some embodiments, one end of the first stopper 41 used for abutment is set as a protrusion with a smooth curved surface; and / or, one end of the second stopper 42 used for abutment is set as a protrusion with a smooth curved surface. For example, when the first stopper 41 is set on the transmission assembly 3, the end of the first stopper 41 abutting against the clamping assembly 2 can be set as a protrusion with a smooth curved surface; when the second stopper 42 is set on the placement seat 1, the end of the second stopper 42 abutting against the clamping assembly 2 can be set as a protrusion with a smooth curved surface. Optionally, the way to set the smooth curved surface can be to round the sharp edge or to form it by mold shaping. By adopting the first stopper 41 and / or the second stopper 42 as a protrusion with a smooth curved surface at one end for abutment, the smooth curved surface shape can significantly reduce the contact area of ​​the components at the abutment point, so that when the clamping assembly 2 is active, the wear and friction noise between the components can be reduced, thereby improving the durability and use experience of the bracket.

[0043] In some embodiments, Figure 1 As shown, the clamping assembly 2 includes a clamping arm 21 and a bottom bracket 22, which are respectively movably connected to the placement seat 1. There are at least two clamping arms 21, or more clamping arms 21, and at least two clamping arms 21 are arranged opposite to each other, so that the clamping arms 21 arranged opposite to each other can move toward each other to clamp the device. Figure 2 and Figure 3 As shown, the transmission assembly 3 is connected to each clamping arm 21 and the base 22. The transmission assembly 3 is at least used to drive each clamping arm 21 to move synchronously when the base 22 moves, so as to clamp or release the device on the placement seat 1. Figure 2 and Figure 4 As shown, when a first limit member 41 is provided, the first limit member 41 can be arranged between the clamping arm 21 and the transmission assembly 3, and / or between the base 22 and the transmission assembly 3; similarly, when a second limit member 42 is provided, the second limit member 42 can be arranged between the clamping arm 21 and the placement seat 1, and / or between the base 22 and the placement seat 1.

[0044] Specifically, if Figure 1 As shown, the base 22 can move under the gravity of the device when the device is placed on the placement seat 1. When the base 22 moves, the transmission assembly 3 moves synchronously and drives the clamping arm 21 to move synchronously, thereby clamping the device on the placement seat 1. It should be noted that at this time, the clamping arm 21 and the base 22 move in different directions to clamp the device, and these movement directions are all clamping directions, while the remaining directions are non-clamping directions.

[0045] Optionally, in order to achieve the best limiting effect, a first limiting member 41 can be provided between the clamp arm 21 and the transmission assembly 3, and between the bottom bracket 22 and the transmission assembly 3, and a second limiting member 42 can be provided between the clamp arm 21 and the placement seat 1, and between the bottom bracket 22 and the placement seat 1. In this way, each clamp arm 21 and the bottom bracket 22 are limited by the first limiting member 41 and the second limiting member 42, and any clamp arm 21 and the bottom bracket 22 are not prone to shaking or making noise, and have good stability. It is understandable that, according to different needs, the positions of the first limiting member 41 and the second limiting member 42 can be flexibly designed with reference to the above embodiment, or only the first limiting member 41 or only the second limiting member 42 can be provided, as long as the limiting effect can be achieved.

[0046] In some embodiments, Figure 2 and Figure 3 As shown, when the first position-limiting member 41 is provided, the gravity support further includes an elastic structure 5 provided between the placement seat 1 and the transmission assembly 3, and the elastic structure 5 is used to apply a force to the transmission assembly 3 so that the first position-limiting member 41 maintains contact with the transmission assembly 3 and the clamping assembly 2. Specifically, one end of the elastic structure 5 can be directly or indirectly connected to the placement seat 1, and a force can be applied to the transmission assembly 3 through the other end. When assembling, the elastic structure 5 can be appropriately squeezed and then installed between the placement seat 1 and the transmission assembly 3, so that the elastic structure 5 is in a compressed state, and can apply a continuous and stable elastic force to the transmission assembly 3. In this way, under the action of the elastic structure 5, the first position-limiting member 41 can always maintain full contact with the transmission assembly 3 and the clamping assembly 2, and always play the role of abutment and limiting, thereby improving the effect of limiting and further enhancing the stability of the clamping assembly 2.

[0047] In some embodiments, Figure 2 and Figure 3 As shown, the elastic structure 5 includes an elastic member 51 and an abutment joint 52, one end of the elastic member 51 is connected to the placement seat 1, and the other end of the elastic member 51 is connected to the abutment joint 52, and the abutment joint 52 abuts against the transmission assembly 3. Specifically, the elastic member 51 is used to apply an elastic force and transmit the force to the transmission assembly 3 through the abutment joint 52. By such a configuration, the abutment joint 52 can adjust the position where the force is applied, so that the force of the transmission assembly 3 is more uniform and stable.

[0048] In some embodiments, the portion where the abutment head 52 abuts against the transmission assembly 3 can be set as a smooth curved surface. In the above design, similar to the first stopper 41 and / or the second stopper 42 being set with a smooth curved surface, the shape of the smooth curved surface can significantly reduce the contact area between the abutment head 52 and the transmission assembly 3, thereby reducing wear and friction noise, and improving the durability and use experience of the bracket.

[0049] In some embodiments, Figure 1 As shown, the gravity support also includes a mounting seat 6 that is rotatably connected to the placement seat 1. Figure 2 and Figure 3 As shown, the transmission assembly 3 includes a transmission wheel 31, a first clutch 32 and a second clutch 33. The transmission wheel 31 is movably connected to the placement seat 1 and is connected to the clamping assembly 2. The transmission wheel 31 is used to drive the clamping assembly 2 to move relative to the placement seat 1 to clamp or release the equipment on the placement seat 1. The first clutch 32 is fixedly connected to the transmission wheel 31 and can rotate synchronously with the transmission wheel 31. The second clutch 33 is connected to the mounting seat 6 and is located between the mounting seat 6 and the first clutch 32. The second clutch 33 is used to contact and drive with the first clutch 32 when the placement seat 1 rotates relative to the mounting seat 6, so as to drive the transmission wheel 31 to drive the clamping assembly 2 to further clamp the equipment. Among them, the first limiter 41 is at least arranged between the clamping assembly 2 and the transmission wheel 31, and can also be further arranged between the clamping assembly 2 and the first clutch 32. The two ends of the elastic structure 5 are respectively connected to the mounting seat 6 and the first clutch 32.

[0050] It is understandable that when the clamping assembly 2 includes the clamping arm 21 and the bottom bracket 22, the transmission wheel 31 is connected to both the clamping arm 21 and the bottom bracket 22, and the first limiter 41 is at least disposed between the clamping arm 21 or the bottom bracket 22 and the transmission wheel 31, and can be further disposed between the clamping arm 21 or the bottom bracket 22 and the first clutch 32. For example, Figure 4 Part of the first limiting member 41 is disposed between the clamping arm 21 and the transmission wheel 31 , and another part of the first limiting member 41 is disposed between the bottom bracket 22 and the first clutch member 32 .

[0051] The gravity bracket in the above embodiment can still hold the device when the device needs to be used in landscape mode through the cooperation of the first clutch member 32 and the second clutch member 33. Specifically, when the device is used in the portrait mode, the gravity of the device acts on the bottom bracket 22 to make the bottom bracket 22 move, and then drives the clamp arm 21 to clamp the device through the transmission wheel 31; and when it is necessary to switch to the landscape mode, the user can drive the device to rotate to the landscape mode by rotating the placement seat 1, and the placement seat 1 and the mounting seat 6 can be connected by means of threads, etc., so that the placement seat 1 can simultaneously drive the first clutch 32 to approach the second clutch 33 on the mounting seat 6 when rotating, so that the first clutch 32 and the second clutch 33 are in contact, and the first clutch 32 is prevented from rotating synchronously with the placement seat 1 through the second clutch 33. When the placement seat 1 continues to rotate, the first clutch 32 cannot rotate, and there is relative rotation between the first clutch 32 and the placement seat 1, so that the transmission wheel 31 fixedly connected to the first clutch 32 rotates relative to the placement seat 1, thereby driving the clamp arm 21 to further clamp the device. By adopting the above design, the gravity bracket can realize the vertical and horizontal screen switching of the device, and the user experience is better.

[0052] It can be understood that the technical solution of using the limit component 4 in the embodiment of the utility model to limit the movement of the clamping component 2, thereby improving the clamping stability, can be applied not only to the conventional gravity stand of the device that can only be used in vertical screen, but also to the above-mentioned gravity stand that can switch between horizontal and vertical screens. It has high design flexibility and a wide range of applications.

[0053] In some embodiments, Figure 2 and Figure 3 As shown, a guide hole 331 is formed through the second clutch 33, and the elastic structure 5 passes through the guide hole 331 to connect the mounting seat 6 and the first clutch 32. By adopting the above design, the elastic structure 5 can apply a force to the first clutch 32 under the guidance of the guide hole 331, and the direction of the force is more accurate and the force effect is good. At the same time, the guide hole 331 can reduce the weight of the second clutch 33 and save the space occupied by the elastic structure 5, and the design is more reasonable.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gravity support, characterized in that: include: A placement seat for placing equipment; A clamping assembly, movably connected to the placement seat; A transmission assembly connected to the clamping assembly, the transmission assembly is used to drive the clamping assembly to move along the clamping direction to clamp or release the device; A limiting assembly is arranged between the clamping assembly and the transmission assembly, and / or between the clamping assembly and the placement seat to limit the movement of at least part of the clamping assembly in a non-clamping direction.

2. The gravity support according to claim 1, characterized in that: The limiting assembly comprises a first limiting member located between the clamping assembly and the transmission assembly, the first limiting member being used to limit the movement of at least part of the clamping assembly in the non-clamping direction; and / or, The limiting assembly includes a second limiting member located between the clamping assembly and the placement seat, and the second limiting member is used to limit the movement of at least part of the clamping assembly in the non-clamping direction.

3. The gravity support according to claim 2, characterized in that: The limiting assembly includes a first limiting member located between the clamping assembly and the transmission assembly and a second limiting member located between the clamping assembly and the placement seat; Wherein, the first limiting member and the second limiting member are respectively located on two opposite sides of the clamping assembly.

4. The gravity support according to claim 2, characterized in that: The limiting assembly includes a first limiting member located between the clamping assembly and the transmission assembly, and one end of the first limiting member used for abutment is set as a protrusion with a smooth curved surface; and / or the limiting assembly includes a second limiting member located between the clamping assembly and the placement seat, and one end of the second limiting member used for abutment is set as a protrusion with a smooth curved surface.

5. The gravity support according to claim 2, characterized in that: The clamping assembly comprises: There are at least two clamping arms, at least two of which are arranged opposite to each other, and each of the clamping arms is movably connected to the placement seat; The bottom bracket is movably connected to the placement seat; the transmission assembly is connected to each of the clamping arms and the bottom bracket, and the transmission assembly is at least used to drive each of the clamping arms to move synchronously when the bottom bracket moves, so as to clamp or release the device; in, The limiting assembly includes a first limiting member, and the first limiting member is arranged between the clamping arm and the transmission assembly, and / or between the base and the transmission assembly; and / or, The limiting assembly includes a second limiting member, and the second limiting member is arranged between the clamping arm and the placement seat, and / or between the base and the placement seat.

6. The gravity support according to claim 2, characterized in that: The gravity support further comprises: The elastic structure is arranged between the placement seat and the transmission assembly. The limit assembly includes a first limit member located between the clamping assembly and the transmission assembly. The elastic structure is used to apply a force to the transmission assembly so that the first limit member maintains contact with the transmission assembly and the clamping assembly.

7. The gravity support according to claim 6, characterized in that: The elastic structure comprises an elastic member and an abutment joint, one end of the elastic member is connected to the placement seat, the other end of the elastic member is connected to the abutment joint, and the abutment joint abuts against the transmission assembly.

8. The gravity support according to claim 7, characterized in that: The portion where the abutment head abuts against the transmission assembly is configured as a smooth curved surface.

9. The gravity support according to claim 6, characterized in that: The gravity support also includes a mounting seat rotatably connected to the placement seat, and the transmission assembly includes: A transmission wheel is movably connected to the placement seat and connected to the clamping assembly, and the transmission wheel is used to drive the clamping assembly to move relative to the placement seat to clamp or release the device; A first clutch member, fixedly connected to the transmission wheel; A second clutch member is connected to the mounting seat and is located between the mounting seat and the first clutch member, and the second clutch member is used for contacting and transmitting with the first clutch member when the placement seat rotates relative to the mounting seat, so as to drive the transmission wheel to drive the clamping assembly to further clamp the device; Wherein, the first limiting member is at least arranged between the clamping assembly and the transmission wheel, and two ends of the elastic structure are respectively connected to the mounting seat and the first clutch member.

10. The gravity support according to claim 9, characterized in that: A guide hole is formed through the second clutch member, and the elastic structure passes through the guide hole to connect the mounting seat and the first clutch member.

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