Clamping support

Abstract

The utility model relates to a clamping support which comprises a base, a transmission connecting rod, an elastic assembly, a driving mechanism and a clamping assembly, the clamping support exerts elastic force on the transmission connecting rod together through a plurality of elastic pieces, and when a rotating shaft is driven to move relative to a movable part, the rotating shaft can be switched between a first position and a second position. When the rotating shaft is switched between the first position and the second position, the positions, relative to the rotating center of the transmission connecting rod, of the connecting parts located on the two sides of the movable part change in real time, the rotating trend of the transmission connecting rod relative to the base provides acting force for the clamping arms to be close to or away from each other, and therefore automatic opening and closing of the clamping support are achieved. The clamping support is simple in structure and convenient to use, due to the fact that the elastic piece is always in the state of providing elastic force and cannot completely release elastic potential energy, a user does not need to store force for the elastic piece, operation force and operation difficulty are reduced when the clamping support is used, and user experience can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic devices and their auxiliary accessories, and in particular to a clamping bracket. Background Technology

[0002] Currently, mobile phones, tablets, and other products on the market typically use elastic clamps for fixing or resetting. For example, a holder with clamping function includes a clamping component for holding the product and an elastic component that provides elastic force. In one scenario, after the elastic component releases its elastic potential energy, the clamping component automatically opens, releasing the product from its grip. However, after the elastic potential energy of the elastic component is released, it is necessary to manually reset the clamping component to clamp the product again. In another scenario, after the elastic component releases its elastic potential energy, the clamping component automatically closes and clamps the product. To remove the product, it is necessary to manually operate the clamping component to open it and remove the product. Again, the problem of needing to manually reset the elastic component after its elastic potential energy is released exists.

[0003] It is evident that the elastic components in conventional clamping brackets require manual reset after releasing their elastic potential energy. The manual reset process involves overcoming elastic forces, which is difficult to perform, affects the convenience of using the bracket, and results in a poor user experience. Utility Model Content

[0004] Therefore, it is necessary to provide a clamping bracket that can open and close automatically, making operation more convenient and improving the user experience.

[0005] An embodiment of this utility model provides a clamping bracket, including a base, a transmission link, an elastic component, a driving mechanism, and a clamping component. The transmission link has a first mounting section and a second mounting section. The first mounting section has at least two spaced-apart connecting portions, and a movable portion is provided between the two connecting portions. The elastic component includes at least two elastic elements, one end of which is connected to the connecting portion and the other end of which is connected to the base. In the connecting portions connected to the elastic elements, at least two of the connecting portions are located on opposite sides of the movable portion, and the elastic force provided by the elastic elements is directed toward the same side of the transmission link. The driving mechanism includes a rotating shaft. The movable part is movably disposed on the base and rotatably connected to the rotating shaft. The rotating shaft can be driven to move relative to the movable part to a first position and a second position along the arrangement direction of the connecting part, and drive the movable part to rotate relative to the rotating shaft. The clamping assembly includes at least two clamping arms disposed opposite to each other. The clamping arms are connected to the second mounting section and move relative to the base following the rotation of the movable part. When the rotating shaft moves to the first position, the sum of the torques applied by the elastic element to the transmission link causes the clamping arms to move closer together. When the rotating shaft moves to the second position, the sum of the torques applied by the elastic element to the transmission link causes the clamping arms to move away from each other.

[0006] The clamping bracket in this application applies elastic force to the transmission link through multiple elastic elements. When the drive shaft moves relative to the movable part, the shaft can switch between a first position and a second position. When the shaft switches between the first and second positions, the position of the connecting parts on both sides of the movable part relative to the rotation center of the transmission link changes in real time. The rotation trend of the transmission link relative to the base provides the clamping arms with a force that moves them closer or further apart, thereby realizing the automatic opening and closing of the clamping bracket, which is more convenient to use.

[0007] In some embodiments, the drive mechanism includes an operating part, the base is provided with a guide groove, the rotating shaft is movably disposed in the guide groove, the operating part is connected to the rotating shaft, and the operating part is used to drive the rotating shaft to move along the guide groove so that the rotating shaft moves relative to the movable part;

[0008] Alternatively, the driving mechanism includes an operating part and a driving wheel, the driving wheel being rotatably connected to the base, the rotating shaft being connected to one end of the driving wheel and eccentrically disposed relative to the axis of the driving wheel, the operating part being connected to the driving wheel and used to drive the driving wheel to rotate relative to the base;

[0009] Alternatively, the drive mechanism includes an operating part and a drive wheel. The operating part is movably connected to the base, the drive wheel is rotatably connected to the base, the rotating shaft is connected to one end of the drive wheel and is eccentrically arranged relative to the axis of the drive wheel, the circumference of the drive wheel meshes with the operating part, and can rotate relative to the base as the operating part moves.

[0010] In some embodiments, the movable part includes a guide groove extending along the arrangement direction of the connecting part, the rotating shaft passes through the guide groove and is movable along the guide groove, and when the rotating shaft moves to both ends of the guide groove, the rotating shaft is respectively in the first position and the second position.

[0011] In some embodiments, the elastic elements connected to the connecting portions located on both sides of the movable portion are all located on the same side of the transmission link;

[0012] Alternatively, among the elastic members connected to the connecting portions located on both sides of the movable portion, at least two of the elastic members are located on opposite sides of the transmission link.

[0013] In some embodiments, the clamping bracket further includes a transmission mechanism, the transmission mechanism including a transmission rod, the transmission rod being rotatably disposed on the base, the transmission rod having two mounting areas along the axial direction, the two mounting areas having external threads with opposite directions on their circumferences, the clamping arm being movably disposed on the base, the two clamping arms being threadedly connected to the two mounting areas respectively, and the transmission connecting rod being connected to one of the clamping arms;

[0014] Alternatively, the clamping bracket may further include a transmission mechanism, which includes a transmission gear rotatably connected to the base, with the sides of the two clamping arms respectively meshing with the opposite sides of the transmission gear, and the transmission link connected to one of the clamping arms.

[0015] In some embodiments, the clamping bracket further includes a transmission mechanism, the transmission mechanism including a transmission gear, the transmission gear being rotatably connected to the base;

[0016] The clamping arm includes a telescopic part and a clamping part. The transmission link is connected to the telescopic part of one of the clamping arms. The clamping part is connected to one end of the telescopic part. The transmission gear is located between the telescopic parts of two of the clamping arms and meshes with the side of the telescopic part. Along the arrangement direction of the transmission gear and the telescopic part, the length of the connecting part is greater than the length of the telescopic part.

[0017] In some embodiments, the clamping bracket further includes a transmission mechanism, the transmission mechanism including a transmission gear, the transmission gear being rotatably connected to the base;

[0018] The two clamping arms are stacked along the axial direction of the transmission gear. Each clamping arm includes a clamping part and two spaced telescopic parts. The transmission link is connected to one of the telescopic parts of one of the clamping arms. The clamping part is connected to one end of the telescopic part. The transmission gear is located between the two telescopic parts. One of the telescopic parts of each clamping arm meshes with the circumference of the transmission gear. The base has a sliding groove. The two telescopic parts of each clamping arm are slidably connected in the sliding groove and respectively fit against the inner wall of the sliding groove.

[0019] In some embodiments, the telescopic portion of one of the clamping arms has a drive pin, and the second mounting section is provided with a drive groove, the drive pin being slidably connected within the drive groove.

[0020] In some embodiments, the base has two spaced-apart limiting portions on one side, and the sliding groove is defined between the two limiting portions. One of the limiting portions has a recessed clearance groove on the side facing away from the sliding groove. The elastic component and the connecting portion are both located outside the sliding groove and on the side of the limiting portion facing the clearance groove.

[0021] In some embodiments, at least a portion of the drive mechanism and the elastic component are respectively disposed on opposite sides of the base. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 A schematic diagram of a clamping bracket provided in an embodiment of this application;

[0024] Figure 2 A schematic diagram of one embodiment of the transmission link;

[0025] Figure 3 This is a schematic diagram showing the clamping bracket in the closed state.

[0026] Figure 4 This is a schematic diagram showing the clamping bracket in the open position.

[0027] Figure 5 This is a schematic diagram showing the distribution of the elastic element in different embodiments;

[0028] Figure 6 These are schematic diagrams of different embodiments of the drive mechanism;

[0029] Figure 7 This is an exploded view of a clamping bracket provided in one embodiment of this application;

[0030] Figure 8 This is a schematic diagram of one embodiment of the transmission mechanism;

[0031] Figure 9 This is a schematic diagram of the operating unit in the open and closed states of the clamping bracket.

[0032] Figure label:

[0033] Base 100, guide groove 110, sliding groove 120, limiting part 130, clearance groove 131; transmission connecting rod 200, first mounting section 210, second mounting section 220, transmission groove 221, connecting part 230, first connecting part 230a, second connecting part 230b, movable part 240, guide groove 241; elastic component 300, elastic element 310, first elastic element 310a, second elastic element 310b; drive mechanism 400, rotating shaft 410, operating part 420, drive wheel 430, gear 431, eccentric wheel 432; clamping assembly 500, clamping arm 510, telescopic part 511, clamping part 512, transmission pin 513; transmission mechanism 600, transmission rod 610, mounting area 611, transmission gear 620. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] In traditional technology, clamping brackets mainly use elastic clamping to hold and fix products. Compared with gravity clamping, it can provide a more stable and reliable clamping force. Although the clamping bracket is equipped with elastic components that can provide elastic force, after the elastic force of the elastic components is released, it is necessary to manually store force in the elastic components to remove the product or clamp the product. This manual reset process requires overcoming a large elastic force, which is difficult to operate and makes the use of the clamping bracket inconvenient and results in a poor user experience.

[0039] Reference Figure 1 This utility model provides a clamping bracket that provides clamping force to products such as mobile phones, tablets, and computers, keeping the products in a fixed position. The clamping bracket includes a base 100, a transmission link 200, an elastic component 300, a drive mechanism 400, and a clamping component 500. The base 100 provides an installation foundation and space for the transmission link 200, the elastic component 300, the drive mechanism 400, and the clamping component 500. (See reference...) Figure 2 The transmission link 200 has a first mounting section 210 and a second mounting section 220. The first mounting section 210 and the second mounting section 220 are arranged along the length direction of the transmission link 200. The first mounting section 210 and the second mounting section 220 can be integrally connected or detachably connected. The first mounting section 210 is provided with at least two spaced connecting parts 230, and a movable part 240 is provided between the two connecting parts 230. That is, at least two connecting parts 230 are located on both sides of the movable part 240.

[0040] The elastic component 300 includes at least two elastic elements 310. Each elastic element 310 is elastic and has the ability to automatically recover after deformation. The elastic element 310 is not limited to being a tension spring, compression spring, or sheet spring. One end of the elastic element 310 is connected to the connecting part 230, and the other end is connected to the base 100. Thus, when the transmission link 200 moves relative to the base 100, one end of the elastic element 310 moves with the transmission link 200, and the distance between the two ends of the elastic element 310 changes, causing the elastic element 310 to be stretched or compressed, thereby changing the magnitude of the elastic force of the elastic element 310. The connection method between the elastic element 310 and the connecting part 230 is not limited to hooking, hooking, or threaded connection, and the connecting part 230 is not limited to being a hook or a hanging ring. In this embodiment, among the connecting portions 230 connected to the elastic member 310, at least two connecting portions 230 are respectively located on both sides of the movable portion 240, such that the connection positions of two elastic members 310 and the transmission link 200 are respectively located on both sides of the movable portion 240; in addition, the elastic member 310 always provides elastic force to the transmission link 200, and the elastic force provided by different elastic members 310 is all directed towards the same side of the transmission link 200, such as... Figure 1 As shown, the elastic element 310 is connected to one side of the transmission link 200 along the first direction. The elastic force applied to the transmission link 200 by different elastic elements 310 is all directed toward one side of the transmission link 200. That is, in this embodiment, the elastic element 310 always provides elastic force to the transmission link 200, and at least two of the elastic elements 310 are located on both sides of the movable part 240 when applying force to the transmission link 200, and the force direction of these two elastic elements 310 is directed toward the same side of the transmission link 200.

[0041] The drive mechanism 400 is operable by the user to provide power to the transmission link 200 relative to the base 100. In this embodiment, the drive mechanism 400 includes a rotating shaft 410, which is movably disposed on the base 100. The movable part 240 and the rotating shaft 410 can rotate relative to each other. When the rotating shaft 410 is driven to move relative to the movable part 240 along the arrangement direction of the connecting part 230, the movable part 240 can rotate relative to the rotating shaft 410. The position of the rotating shaft 410 is the rotation position of the movable part 240 relative to the base 100, and the axis of the rotating shaft 410 is the rotation center of the transmission link 200. The movement of the rotating shaft 410 relative to the movable part 240 gives the rotating shaft 410 a first position and a second position relative to the movable part 240. It is understandable that, since the two connecting parts 230 are located on both sides of the movable part 240, when the rotating shaft 410 switches between the first position and the second position, the rotation center of the transmission link 200 changes, and it has the motion characteristic of the rotation center moving closer to one of the connecting parts 230 while moving away from the other connecting part 230. That is, the distance between the rotation center and the two connecting parts 230 decreases in one and increases in the other.

[0042] The clamping assembly 500 includes at least two clamping arms 510 arranged opposite each other. The clamping arms 510 are not limited to being a single link, a linkage mechanism composed of multiple links, or a flexible rod with a flexible skeleton. The two clamping arms 510 can cooperate to clamp or release the product. Understandably, when the clamping arms 510 tend to move closer together, the clamping bracket is in a closed state or switches to a closed state. When the clamping bracket is in the closed state, it provides clamping force to the product, and the product is clamped and kept in a stable position. When the two clamping arms 510 tend to move away from each other, the clamping bracket is in an open state or switches to an open state. When the clamping bracket is in the open state, the clamping force on the product is released, and the product can be removed from the clamping bracket. The clamping arm 510 is connected to the second mounting section 220. When the rotating shaft 410 drives the movable part 240 to rotate, the clamping arm 510 moves relative to the base 100 following the rotation of the transmission link 200. When the rotating shaft 410 moves to the first position, the clamping arms 510 move closer to each other. When the rotating shaft 410 moves to the second position, the clamping arms 510 move further apart, thereby realizing the clamping and releasing of the product by the clamping bracket.

[0043] Specifically, the two connecting portions 230 located on both sides of the movable part 240 are defined as the first connecting portion 230a and the second connecting portion 230b, respectively. The elastic elements 310 connected to the two connecting portions 230 are defined as the first elastic element 310a and the second elastic element 310b, respectively. The first connecting portion 230a is located above the second connecting portion 230b along a third direction, and the first elastic element 310a is located above the second elastic element 310b. The distance between the first connecting portion 230a and the rotating shaft 410 is the lever arm of the elastic force applied by the first elastic element 310a to the transmission link 200. The distance between the second connecting portion 230b and the rotating shaft 410 is the lever arm of the elastic force applied by the second elastic element 310b to the transmission link 200. When the position of the rotating shaft 410 relative to the movable part 240 changes, the lever arms of the first elastic element 310a and the second elastic element 310b change synchronously.

[0044] like Figure 3As shown, both the first elastic element 310a and the second elastic element 310b apply an elastic force to the transmission link 200 in the first direction to the right. When the rotating shaft 410 is in the first position, the distance between the rotating shaft 410 and the first connecting part 230a is relatively close, while the distance between the rotating shaft 410 and the second connecting part 230b is relatively far. Therefore, the lever arm of the elastic force applied by the first elastic element 310a is smaller than the lever arm of the elastic force applied by the second elastic element 310b. The torque of the elastic force applied by the first elastic element 310a to the transmission link 200 is small. The force exerted by the elastic element 310b on the transmission link 200 results in a larger torque on the transmission link 200. The torque exerted by the second elastic element 310b on the transmission link 200 is greater than the torque exerted by the first elastic element 310a. The sum of the torques exerted by the first elastic element 310a and the second elastic element 310b on the transmission link 200 causes the transmission link 200 to tend to rotate counterclockwise around the axis 410, and causes the two clamping arms 510 to move closer together. At this time, the two clamping arms 510 can cooperate to clamp the product. Figure 4 As shown, both the first elastic element 310a and the second elastic element 310b apply an elastic force to the transmission link 200 in the first direction to the right. When the rotating shaft 410 is in the second position, the distance between the rotating shaft 410 and the second connecting part 230b is relatively close, while the distance between the rotating shaft 410 and the first connecting part 230a is relatively far. The lever arm of the elastic force applied by the first elastic element 310a is greater than that of the elastic force applied by the second elastic element 310b. Therefore, the torque of the elastic force applied by the second elastic element 310b to the transmission link 200 is small. The force exerted by component 310a on the transmission link 200 has a large torque. The torque exerted by the first elastic component 310a on the transmission link 200 is greater than the torque exerted by the second elastic component 310b on the transmission link 200. The sum of the torques exerted by the first elastic component 310a and the second elastic component 310b on the transmission link 200 causes the transmission link 200 to tend to rotate clockwise around the pivot 410, and causes the two clamping arms 510 to move away from each other. At this time, the two clamping arms 510 release the product for the user to remove.

[0045] like Figure 3 and Figure 4In the illustrated embodiment, the first position is located above the second position along a third direction. In this case, both the first elastic element 310a and the second elastic element 310b apply an elastic force to the transmission link 200 toward the right side of the first direction. In other embodiments, the first elastic element 310a and the second elastic element 310b may also be configured to apply an elastic force to the transmission link 200 toward the left side of the first direction. The first position is located below the second position along a third direction, the first connecting portion 230a is located above the second connecting portion 230b along a third direction, and the first elastic element 310a is located above the second elastic element 310b. When the rotating shaft 410 is in the first position, the rotating shaft 410 is closer to the second connecting portion 230b and farther from the first connecting portion 230a. The first elastic element 310a applies an elastic force to the right side of the first direction. The lever arm of the elastic force applied by the first elastic element 310a is greater than that of the elastic force applied by the second elastic element 310b. Therefore, the torque exerted by the elastic force applied by the second elastic element 310b on the transmission link 200 is small, while the torque exerted by the force applied by the first elastic element 310a on the transmission link 200 is large. The torque exerted by the first elastic element 310a on the transmission link 200 is greater than the torque exerted by the second elastic element 310b on the transmission link 200. The sum of the torques exerted by the first elastic element 310a and the second elastic element 310b on the transmission link 200 is... This causes the transmission link 200 to tend to rotate counterclockwise around the shaft 410, and brings the two clamping arms 510 closer together, at which point the two clamping arms 510 can cooperate to clamp the product. When the shaft 410 is in the second position, the shaft 410 is closer to the first connecting part 230a and farther from the second connecting part 230b. The lever arm of the elastic force applied by the first elastic member 310a is smaller than the lever arm of the elastic force applied by the second elastic member 310b. Therefore, the force exerted by the elastic force applied by the first elastic member 310a on the transmission link 200 is less than the force exerted by the second elastic member 310b. The torque is small, and the torque exerted by the force of the second elastic element 310b on the transmission link 200 is large. The torque exerted by the second elastic element 310b on the transmission link 200 is greater than the torque exerted by the first elastic element 310a on the transmission link 200. The sum of the torques exerted by the first elastic element 310a and the second elastic element 310b on the transmission link 200 makes the transmission link 200 tend to rotate clockwise around the pivot 410, and makes the two clamping arms 510 move away from each other. At this time, the two clamping arms 510 release the product for the user to remove.

[0046] Therefore, in this embodiment, multiple elastic elements 310 jointly apply elastic force to the transmission link 200. When the rotating shaft 410 switches between the first position and the second position relative to the movable part 240, the position of the connecting parts 230 on both sides of the movable part 240 relative to the rotation center of the transmission link 200 changes in real time. The elastic elements 310 connected to the connecting parts 230 which are far from the rotation center of the transmission link 200 apply a larger torque to the transmission link 200. The sum of the torques applied by the elastic elements 310 to the transmission link 200 causes the transmission link 200 to have a tendency to rotate relative to the base 100. Since the transmission link 200 is connected to the clamping arm 510, the rotation tendency of the transmission link 200 relative to the base 100 provides the clamping arm 510 with a force that moves closer or further away from each other, so that the clamping arm 510 maintains the product clamping state or releases the product. When the rotating shaft 410 moves relative to the movable part 240, the rotating shaft 410 can switch between the first position and the second position, thereby realizing the automatic opening and closing of the clamping bracket, which is more convenient to use. In addition, since the elastic element 310 is always in a state of providing elastic force and does not completely release elastic potential energy, the user does not need to store force for the elastic element 310, which reduces the operating force and difficulty when using the clamping bracket and can effectively improve the user experience.

[0047] It should be noted that when the rotating shaft 410 drives the transmission connecting rod 200 to move relative to the base 100, the rotating shaft 410 and the movable part 240 can move and rotate synchronously relative to each other. In order to make the relative movement of the rotating shaft 410 and the movable part 240 more stable, and to enable the clamping arm 510 to switch stably between the clamping and releasing states, in one embodiment, the movable part 240 is provided with a guide groove 241 extending along the arrangement direction of the connecting part 230. The rotating shaft 410 passes through the guide groove 241. When driven, the rotating shaft 410 can move along the guide groove 241. The peripheral sidewall of the rotating shaft 410 contacts and abuts against the inner wall of the guide groove 241. During the movement of the rotating shaft 410 along the guide groove 241, it pushes the movable part 240. The movable part 240 rotates around the rotating shaft 410, allowing the rotating shaft 410 and the movable part 240 to move and rotate synchronously relative to each other. The relative movement of the two is constrained by the guide groove 241, making the movement of the transmission link 200 more stable. In addition, when the rotating shaft 410 moves to the two ends of the guide groove 241 respectively, the rotating shaft 410 is in the first position and the second position respectively, and the circumference of the rotating shaft 410 abuts against the inner wall of the guide groove 241. The rotating shaft 410 and the inner wall of the guide groove 241 mutually limit each other, so that the rotating shaft 410 can be stably in the first position or the second position. Therefore, the clamping arm 510 can stably switch between the clamping and releasing states, and the clamping bracket can remain in the open or closed state.

[0048] The movable part 240 and the guide groove 241 can be configured to extend along the length direction of the transmission link 200. Therefore, multiple connecting parts 230 can be arranged at intervals along the length direction of the transmission link 200. The connecting parts 230 are distributed on both sides of the movable part 240 along the length direction of the transmission link 200. When the rotating shaft 410 moves in the guide groove 241, the distance between the rotating shaft 410 and the connecting parts 230 on both sides of the movable part 240 can be changed, thereby changing the lever arm of the elastic force applied by the elastic member 310 connected to the connecting part 230. Understandably, multiple connecting parts 230 can be provided on both sides of the movable part 240 along the length of the transmission link 200. Each connecting part 230 is connected to an elastic element 310. The elastic elements 310 connected to the connecting parts 230 on the same side of the movable part 240 form an elastic unit. The elastic assembly 300 includes two elastic units, which are located on both sides of the movable part 240 along the length of the transmission link 200. Each elastic unit includes multiple elastic elements 310, and the number of elastic elements 310 in different elastic units can be the same or different, and the elastic force of the elastic elements 310 can be the same or different. All elastic elements 310 in the elastic unit provide a torque to the transmission link 200 in the same direction, and the torques provided by the two elastic units to the transmission link 200 are in opposite directions.

[0049] like Figure 3 and 4In the embodiment shown, the elastic members 310 connected to the connecting portions 230 on both sides of the movable portion 240 are all located on the same side of the transmission link 200 and all exert force toward the same side of the transmission link 200. For example, all elastic elements 310 are configured as tension springs, and all elastic elements 310 are located on the right side of the transmission link 200 along the first direction. Then, all elastic elements 310 apply a pulling force toward the right side of the transmission link 200. The elastic elements 310 connected to the connecting part 230 above the movable part 240 apply a clockwise rotation torque to the transmission link 200, and the elastic elements 310 connected to the connecting part 230 below the movable part 240 apply a counterclockwise rotation torque to the transmission link 200. When the rotating shaft 410 is close to the upper connecting part 230, the lever arm of the lower elastic element 310 is large, and the transmission link 200 tends to rotate counterclockwise. When the rotating shaft 410 is close to the lower connecting part 230, the lever arm of the upper elastic element 310 is large, and the transmission link 200 tends to rotate clockwise. Alternatively, all elastic elements 310 may be configured as compression springs, and the elastic elements 310 may be located on the rear side of the transmission link 200 along the first direction. In this case, all elastic elements 310 may apply a thrust toward the left side of the transmission link 200. When the rotating shaft 410 is close to the upper connecting part 230, the lever arm of the lower elastic element 310 is large, and the transmission link 200 tends to rotate clockwise. When the rotating shaft 410 is close to the lower connecting part 230, the lever arm of the upper elastic element 310 is large, and the transmission link 200 tends to rotate counterclockwise.

[0050] In another embodiment, among the elastic members 310 connected to the connecting portions 230 located on both sides of the movable portion 240, at least two elastic members 310 are located on opposite sides of the transmission link 200, and both apply force toward the same side of the transmission link 200. Exemplarily, all elastic members 310 within the elastic unit are configured as the same type of elastic member 310, such as... Figure 5 As shown in Figure (a), the elastic members 310 of the connecting portion 230 above the movable portion 240 are all tension springs, and the elastic members 310 are located on the right side of the transmission link 200 along the first direction, applying a tensile force toward the right side of the transmission link 200. The elastic members 310 of the connecting portion 230 below the movable portion 240 are all compression springs, and the elastic members 310 are located on the left side of the transmission link 200 along the first direction, applying a thrust toward the right side of the transmission link 200. Therefore, all elastic members 310 apply force toward the same side of the transmission link 200; or, as Figure 5In the embodiment shown in Figure (b), the elastic unit includes two types of elastic elements 310, namely, both elastic units include a tension spring capable of providing tension and a compression spring capable of providing thrust. In the elastic unit of the connecting part 230 above the movable part 240, one elastic element 310 is located on the right side of the transmission link 200 along the first direction and applies a tension force toward the right side of the transmission link 200; the other elastic element 310 is located on the left side of the transmission link 200 along the first direction and applies a tension force toward the right side of the transmission link 200. A thrust is applied toward the right side of the transmission link 200. In the elastic unit of the connecting part 230 below the movable part 240, one elastic element 310 is located on the right side of the transmission link 200 along the first direction and applies a pulling force toward the right side of the transmission link 200. The other elastic element 310 is located on the left side of the transmission link 200 along the first direction and applies a thrust toward the right side of the transmission link 200. Therefore, all elastic elements 310 apply force toward the same side of the transmission link 200.

[0051] It should be noted that the drive mechanism 400 can be connected to an external control module. The control module includes a control knob and a power component. The power component is connected to the drive mechanism 400 and provides power for the movement of the drive mechanism 400. The power component is not limited to being a motor, servo motor, etc., and the control knob is not limited to being a button, knob, etc. The control knob can be triggered by pressing, rotating, touching, etc. When the user performs the corresponding operation on the control knob, the power component drives the drive mechanism 400 to move according to the command of the control knob, thereby causing the rotating shaft 410 to switch between the first position and the second position, realizing the automatic opening and closing of the clamping bracket.

[0052] Of course, users can also directly control the drive mechanism 400 to make the rotating shaft 410 move relative to the base 100. The control method of the drive mechanism 400 is not limited to sliding, rotating, etc.

[0053] like Figure 6In the embodiment shown in Figure (c), the drive mechanism 400 includes an operation part 420, which can be held by a user to conveniently perform corresponding operations. The operation part 420 and the transmission link 200 can be respectively arranged on opposite sides of the base 100. The base 100 is provided with a guide groove 110, and the rotating shaft 410 is movably arranged in the guide groove 110. The operation part 420 is connected to the rotating shaft 410 and can drive the rotating shaft 410 to move along the guide groove 110. When the user pushes the operating unit 420 to move, the operating unit 420 synchronously drives the rotating shaft 410 to move along the guide groove 110. During the movement of the rotating shaft 410, the transmission link 200 moves along with the rotating shaft 410 by pushing the inner wall of the guide groove 241. Under the action of the elastic force of the elastic component 300, the link 200 rotates relative to the rotating shaft 410. The clamping arm 510 moves along with the rotation of the transmission link 200. When the rotating shaft 410 moves to the end of the guide groove 241, the rotating shaft 410 is in the first position or the second position respectively, so that the clamping arms 510 move closer or further apart. Thus, by pushing the operating unit 420 to move, the clamping bracket can be automatically opened and closed.

[0054] Understandably, the guide groove 110 can constrain the movement trajectory of the rotating shaft 410. While the position of the rotating shaft 410 changes within the guide groove 110, its relative position with the movable part 240 changes synchronously. Furthermore, when the rotating shaft 410 moves to both ends of the guide groove 110, the rotating shaft 410 is simultaneously located at both ends of the guide groove 241 and is in either the first or second position, thereby achieving enhanced limiting of the rotating shaft 410 and enabling the clamping bracket to be stably in the open or closed state.

[0055] like Figure 6 In the embodiment shown in Figure (d), the drive mechanism 400 includes an operating part 420 and a drive wheel 430. The drive wheel 430 is rotatably connected to the base 100. The rotating shaft 410 is connected to one end of the drive wheel 430 along its axial direction and is eccentrically arranged relative to the axis of the drive shaft. The operating part 420 is connected to the drive wheel 430 and is used to drive the drive wheel 430 to rotate relative to the base 100. When the user rotates the operating unit 420, the operating unit 420 synchronously drives the drive wheel 430 to rotate. The rotating shaft 410 follows the rotation of the drive wheel 430 and makes a circular motion around the axis of the drive wheel 430. During the movement of the rotating shaft 410, the transmission link 200 moves along with the rotating shaft 410 by pushing the inner wall of the guide groove 241. Under the action of the elastic force of the elastic component 300, the shaft 410 rotates relative to the rotating shaft 410. The clamping arm 510 moves with the rotation of the transmission link 200. When the rotating shaft 410 moves to the end of the guide groove 241, the rotating shaft 410 is in the first position or the second position respectively, so that the clamping arms 510 move closer or further apart. Thus, the clamping bracket can be automatically opened and closed by rotating the operating unit 420.

[0056] like Figure 7 In the illustrated embodiment, the drive mechanism 400 includes an operating part 420 and a drive wheel 430. The operating part 420 is movably connected to the base 100, and the drive wheel 430 is rotatably connected to the base 100. A rotating shaft 410 is connected to one end of the drive wheel 430 along its axial direction and is eccentrically arranged relative to the axis of the drive wheel 430. Both the circumference of the drive wheel 430 and the side of the operating part 420 are provided with meshing teeth. The drive wheel 430 can be configured as including a gear 431 with meshing teeth on its circumference and an eccentric wheel 432 connected to the rotating shaft 410. The two are assembled to form the drive wheel 430 (e.g., ...). Figure 7 (as shown), or it can be configured such that gear 431 and eccentric wheel 432 are integrally connected, drive wheel 430 meshes with operating part 420 and can rotate relative to base 100 as operating part 420 moves. When the user pushes the operating part 420 to move, the drive wheel 430 rotates relative to the base 100 under the drive of the operating part 420. The rotating shaft 410 follows the rotation of the drive wheel 430 and makes a circular motion around the axis of the drive wheel 430. During the movement of the rotating shaft 410, the transmission link 200 moves with the rotating shaft 410 by pushing the inner wall of the guide groove 241. Under the action of the elastic force of the elastic component 300, the shaft 410 rotates relative to the rotating shaft 410. The clamping arm 510 moves with the rotation of the transmission link 200. When the rotating shaft 410 moves to the end of the guide groove 241, the rotating shaft 410 is in the first position or the second position respectively, so that the clamping arms 510 move closer or further apart. Thus, by pushing the operating part 420 to move, the clamping bracket can be automatically opened and closed.

[0057] The two clamping arms 510 are configured to extend and retract under the drive of the transmission link 200, or the movement of the transmission link 200 is transmitted to the clamping arms 510 through the transmission mechanism 600, or the two clamping arms 510 are linked together through the transmission mechanism 600, thereby realizing the synchronous extension and retraction of the clamping arms 510.

[0058] like Figure 8In the illustrated embodiment, the transmission mechanism 600 includes a transmission rod 610, which is rotatably mounted on the base 100. The transmission rod 610 has two mounting areas 611 along its axial direction. Both mounting areas 611 have external threads on their circumferences, with opposite thread directions. A clamping arm 510 is movably mounted on the base 100, and the movement direction of the clamping arm 510 is parallel to the axis of the transmission rod 610. The two clamping arms 510 are threadedly connected to the two mounting areas 611 respectively. When the transmission rod 610 rotates, the two clamping arms 510 move towards or away from each other along the transmission rod 610. Specifically, a transmission link 200 is connected to one of the clamping arms 510. When the transmission link 200 drives one of the clamping arms 510 to move, the other clamping arm 510 moves synchronously through the power transmission of the transmission rod 610, thereby causing the two clamping arms 510 to move towards or away from each other, achieving the mutual approach or separation of the clamping arms 510.

[0059] like Figure 3 , Figure 4 and Figure 7 In the illustrated embodiment, the transmission mechanism 600 includes a transmission gear 620 rotatably connected to the base 100. The transmission gear 620 and the sides of the clamping arms 510 are provided with meshing teeth. The sides of the two clamping arms 510 mesh with the opposite sides of the transmission gear 620. Therefore, when the transmission gear 620 rotates relative to the base 100, the two clamping arms 510 move towards or away from each other due to the drive of the transmission gear 620. Specifically, the transmission link 200 is connected to one of the clamping arms 510. When the transmission link 200 moves one of the clamping arms 510, the transmission gear 620 rotates due to the movement of that clamping arm 510, thereby moving the other clamping arm 510, causing the two clamping arms 510 to move towards or away from each other, thus bringing the clamping arms 510 closer together or further apart.

[0060] Furthermore, the clamping arm 510 includes a telescopic portion 511 and a clamping portion 512. A transmission link 200 is connected to the telescopic portion 511 of one of the clamping arms 510. The clamping portion 512 is connected to one end of the telescopic portion 511. A transmission gear 620 is located between the telescopic portions 511 of the two clamping arms 510. The side of the telescopic portion 511 meshes with the circumference of the transmission gear 620. The clamping portion 512 protrudes in a second direction relative to the telescopic portion 511. The clamping portion 512 can move with the movement of the telescopic portion 511. The clamping portions 512 of the two clamping arms 510 are used to cooperate in clamping the product. In one embodiment, along the arrangement direction of the transmission gear 620 and the telescopic portion 511, the length of the clamping portion 512 is greater than the length of the telescopic portion 511, so that the clamping portion 512 and the product have a larger contact area, improving the stability of the product being clamped, and making the connection between the clamping arm 510 and the transmission gear 620 more compact.

[0061] Alternatively, the clamping arm 510 may include two spaced telescopic portions 511, with a transmission gear 620 located between the two telescopic portions 511. A transmission link 200 is connected to one telescopic portion 511 of one of the clamping arms 510. One telescopic portion 511 of each clamping arm 510 meshes with the circumference of the transmission gear 620, and the telescopic portions 511 of the two clamping arms 510 that mesh with the transmission gear 620 are located on opposite sides of the transmission gear 620, so that the two clamping arms 510 can move toward or away from each other. Two clamping arms 510 are stacked along the axial direction of the transmission gear 620. The base 100 is provided with a sliding groove 120. The two telescopic parts 511 of each clamping arm 510 are slidably connected in the sliding groove 120. The opposite sides of the two telescopic parts 511 are respectively attached to the two opposing inner walls of the sliding groove 120. On the one hand, since the two clamping arms 510 are stacked, the telescopic parts 511 of the two clamping arms 510 are both accommodated in the sliding groove 120, and the two clamping arms 510 can be guided by the sliding groove 120. On the other hand, when the clamping arms 510 move, they are guided by the sliding groove 120, and the approach or departure of the clamping arms 510 is more stable.

[0062] Two spaced-apart limiting portions 130 are provided on one side of the base 100, and a sliding groove 120 is defined between the two limiting portions 130. The telescopic portion 511 of the clamping arm 510 is attached to the side of the limiting portion 130 facing each other. One of the limiting portions 130 has a recessed clearance groove 131 on the side facing away from the sliding groove 120. The elastic component 300 and the connecting portion 230 are both located outside the sliding groove 120 and on the side of the limiting portion 130 facing the clearance groove 131. In this way, because the clearance groove 131 is recessed, it can avoid the elastic component 310 and the connecting portion 230 when the transmission link 200 rotates around the rotating shaft 410, providing a larger range of motion for the connecting portion 230 and the elastic component 310, making the clamping arm 510 move closer and further away more smoothly.

[0063] Furthermore, one of the clamping arms 510 has a telescopic portion 511 with a transmission pin 513, and the second mounting section 220 has a transmission groove 221. The transmission pin 513 is slidably connected in the transmission groove 221. When the transmission link 200 rotates around the shaft 410, the transmission pin 513 slides along the transmission groove 221 and abuts against the inner wall of the transmission groove 221. The transmission pin 513 pushes the inner wall of the transmission groove 221, causing the clamping arm 510 to move, thereby realizing the power transmission from the transmission link 200 to the clamping arm 510, and converting the rotation of the transmission link 200 around the shaft 410 into the movement of the clamping arm 510 relative to the base 100.

[0064] In one embodiment, at least a portion of the drive mechanism 400 and the elastic component 300 are respectively disposed on opposite sides of the base 100. This allows for full utilization of the mounting positions on both sides of the base 100 to arrange the drive mechanism 400 and the elastic component 300, facilitating the transmission connection of the components within the clamping bracket. For example, as... Figure 7 In the embodiment shown, the operating part 420 and a portion of the drive wheel 430 are located on one side of the base 100, while the other part of the drive wheel 430, the rotating shaft 410, the drive mechanism 400, and the clamping arm 510 are located on the opposite side of the base 100. In this way, the axial space of the drive wheel 430 can be fully utilized to achieve the cooperative connection between the drive wheel 430, the rotating shaft 410, and the operating part 420.

[0065] by Figure 3 and Figure 9 Taking Figure (e) as an example, the elastic elements 310 are all disposed on the right side of the transmission link 200 along the first direction, and the elastic elements 310 are configured as tension springs. The connecting part 230 located above the movable part 240 is the first connecting part 230a, and the connecting part 230 located below the movable part 240 is the second connecting part 230b. One end of the two elastic elements 310 is connected to the first connecting part 230a and the second connecting part 230b respectively, and the other end is connected to the base 100. The elastic element 310 connected to the first connecting part 230a is the first elastic element 310a, and the elastic element 310 connected to the second connecting part 230b is the first elastic element 310a. When the user pushes the operating part 420 upward, the driving wheel 430 rotates synchronously with the operation part 420 through the meshing of the operating part 420 and the drive wheel 430. The rotating shaft 410 moves in a circle around the axis of the drive wheel 430 and gradually moves upward. During this process, the lever arm of the second elastic element 310b is greater than that of the first elastic element 310a. The second elastic element 310b applies a torque to the transmission link 200 to rotate counterclockwise. The transmission link 200 rotates counterclockwise, causing the clamping arm 510 to move along the sliding groove 120. Through the power transmission of the transmission gear 620, the two clamping arms 510 gradually move closer to each other. When the rotating shaft 410 moves to the upper end of the guide groove 241, the rotating shaft 410 is in the first position. The rotating shaft 410 is limited by the inner wall of the guide groove 241, keeping the two clamping arms 510 in a close-to-each-other state. Correspondingly, refer to Figure 4 and Figure 9 In Figure (f), the user can move the two clamping arms 510 away from each other by pushing the operating part 420 downward.

[0066] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A clamping bracket, characterized in that, include: Base; A transmission link has a first mounting section and a second mounting section. The first mounting section has at least two spaced-apart connecting parts, and a movable part is provided between the two connecting parts. An elastic component includes at least two elastic elements, one end of each elastic element being connected to the connecting portion and the other end being connected to the base. In the connecting portions connected to the elastic elements, at least two of the connecting portions are located on opposite sides of the movable portion, and the elastic force provided by the elastic elements is directed toward the same side of the transmission link. A drive mechanism includes a rotating shaft, which is movably disposed on the base. A movable part is rotatably connected to the rotating shaft. The rotating shaft can be driven to move relative to the movable part to a first position and a second position along the arrangement direction of the connecting part, and drive the movable part to rotate relative to the rotating shaft. The clamping assembly includes at least two opposing clamping arms connected to the second mounting section and moving relative to the base as the movable part rotates. When the rotating shaft moves to the first position, the sum of the torques applied by the elastic elements to the transmission link causes the clamping arms to move closer together. When the rotating shaft moves to the second position, the sum of the torques applied by the elastic elements to the transmission link causes the clamping arms to move away from each other.

2. The clamping bracket according to claim 1, characterized in that, The drive mechanism includes an operating part, the base is provided with a guide groove, the rotating shaft is movably disposed in the guide groove, the operating part is connected to the rotating shaft, and the operating part is used to drive the rotating shaft to move along the guide groove so that the rotating shaft moves relative to the movable part; Alternatively, the driving mechanism includes an operating part and a driving wheel, the driving wheel being rotatably connected to the base, the rotating shaft being connected to one end of the driving wheel and eccentrically disposed relative to the axis of the driving wheel, the operating part being connected to the driving wheel and used to drive the driving wheel to rotate relative to the base; Alternatively, the drive mechanism includes an operating part and a drive wheel. The operating part is movably connected to the base, the drive wheel is rotatably connected to the base, the rotating shaft is connected to one end of the drive wheel and is eccentrically arranged relative to the axis of the drive wheel, the circumference of the drive wheel meshes with the operating part, and can rotate relative to the base as the operating part moves.

3. The clamping bracket according to claim 1, characterized in that, The movable part includes a guide groove extending along the arrangement direction of the connecting part. The rotating shaft passes through the guide groove and can move along the guide groove. When the rotating shaft moves to both ends of the guide groove, the rotating shaft is in the first position and the second position respectively.

4. The clamping bracket according to claim 1, characterized in that, The elastic elements connected to the connecting parts located on both sides of the movable part are all located on the same side of the transmission link; Alternatively, among the elastic members connected to the connecting portions located on both sides of the movable portion, at least two of the elastic members are located on opposite sides of the transmission link.

5. The clamping bracket according to claim 1, characterized in that, The clamping bracket further includes a transmission mechanism, which includes a transmission rod rotatably mounted on the base. The transmission rod has two mounting areas along the axial direction, and the two mounting areas have external threads with opposite directions on their circumferences. The clamping arms are movably mounted on the base, and the two clamping arms are threadedly connected to the two mounting areas respectively. The transmission connecting rod is connected to one of the clamping arms. Alternatively, the clamping bracket may further include a transmission mechanism, which includes a transmission gear rotatably connected to the base, with the sides of the two clamping arms respectively meshing with the opposite sides of the transmission gear, and the transmission link connected to one of the clamping arms.

6. The clamping bracket according to claim 1, characterized in that, The clamping bracket further includes a transmission mechanism, which includes a transmission gear rotatably connected to the base. The clamping arm includes a telescopic part and a clamping part. The transmission link is connected to the telescopic part of one of the clamping arms. The clamping part is connected to one end of the telescopic part. The transmission gear is located between the telescopic parts of two of the clamping arms and meshes with the side of the telescopic part. Along the arrangement direction of the transmission gear and the telescopic part, the length of the connecting part is greater than the length of the telescopic part.

7. The clamping bracket according to claim 1, characterized in that, The clamping bracket further includes a transmission mechanism, which includes a transmission gear rotatably connected to the base. The two clamping arms are stacked along the axial direction of the transmission gear. Each clamping arm includes a clamping part and two spaced telescopic parts. The transmission link is connected to one of the telescopic parts of one of the clamping arms. The clamping part is connected to one end of the telescopic part. The transmission gear is located between the two telescopic parts. One of the telescopic parts of each clamping arm meshes with the circumference of the transmission gear. The base has a sliding groove. The two telescopic parts of each clamping arm are slidably connected in the sliding groove and respectively fit against the inner wall of the sliding groove.

8. The clamping bracket according to claim 6 or 7, characterized in that, One of the clamping arms has a telescopic portion with a drive pin, and the second mounting section has a drive groove, with the drive pin slidably connected to the drive groove.

9. The clamping bracket according to claim 7, characterized in that, The base has two spaced-apart limiting parts on one side, and the sliding groove is defined between the two limiting parts. One of the limiting parts has a recessed clearance groove on the side facing away from the sliding groove. The elastic component and the connecting part are both located outside the sliding groove and on the side of the limiting part facing the clearance groove.

10. The clamping bracket according to claim 1, characterized in that, At least a portion of the drive mechanism and the elastic component are respectively disposed on opposite sides of the base.

Images