Adjustable clamping device

Abstract

The utility model provides an adjustable clamping device which comprises a connecting base, a clamping part and a clamping part. The ejector rod mechanism is connected to the other end of the connecting base in a displaceable mode, and a space for clamping an object is formed between the end, facing the clamping part, of the ejector rod mechanism and the clamping part; the cam part is rotatably connected to the other end of the connecting base, a driving part is arranged on the cam part, a sliding rail is arranged on the ejector rod mechanism, the driving part is slidably connected to the sliding rail, and the driving part is used for sliding in the sliding rail along with rotation of the cam part so as to control displacement of the ejector rod mechanism. When the cam part rotates, the driving part on the cam part can slide in the sliding rail of the ejector rod mechanism, and then the position change of the ejector rod mechanism is controlled, so that the space formed between the clamping part and the ejector rod mechanism can be adjusted according to the thickness of an object to be clamped, and objects with different thicknesses can be firmly fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, and particularly relates to an adjustable clamping device. Background Art

[0002] Clamping devices are widely used in the fixation and operation of objects, such as electronic device brackets, tool clamping, mechanical assembly, etc. Traditional clamping devices mainly rely on two relatively structured clamping ends to achieve the function of clamping objects, and fix the objects through the mutual acting force between the two clamping ends. However, in related technologies, the clamping space between the two clamping ends of a general clamping device is fixed and unchangeable, and thus cannot be adjusted according to the thicknesses of different objects. When the thickness of an object is less than or exceeds the clamping space, the clamping device cannot effectively clamp it, resulting in poor clamping effect, and even may cause the clamping device or the clamped object to fall off or be damaged. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an adjustable clamping device to solve the technical problems raised in the above background art: the clamping space between the two clamping ends of a general clamping device is fixed and unchangeable, and thus cannot be adjusted according to the thicknesses of different objects. When the thickness of an object is less than or exceeds the clamping space, the clamping device cannot effectively clamp it, resulting in poor clamping effect, and even may cause the clamping device or the clamped object to fall off or be damaged.

[0004] To achieve the above purpose, according to an embodiment of the present application, an adjustable clamping device is provided, including: a connection base, one end of the connection base is provided with a clamping part;

[0005] A top rod mechanism, the top rod mechanism is displaceably connected to the other end of the connection base, and a space for clamping an object is formed between one end of the top rod mechanism facing the clamping part and the clamping part;

[0006] A cam member, the cam member is rotatably connected to the other end of the connection base, a driving part is provided on the cam member, a slide rail is provided on the top rod mechanism, and the driving part is slidably connected to the slide rail, and the driving part is used to slide in the slide rail following the rotation of the cam member to control the displacement of the top rod mechanism.

[0007] In some possible implementation manners, the top rod mechanism includes a pushing member and a top rod, the top rod includes a pressing end and a rod portion, and a space for clamping an object is formed between one end of the pressing end facing the clamping part and the clamping part; the pushing member is slidably connected to the other end of the connection base, and the distance between the pushing member and the clamping part can be changed when the pushing member slides; the pushing member is telescopically connected to the rod portion of the top rod, and the slide rail is provided on the pushing member;

[0008] By driving the cam member to change the distance between the pushing member and the clamping portion; when the distance between the pushing member and the clamping portion is the largest, the telescopic connection between the pushing member and the rod portion is in an adjustable state; when the distance between the pushing member and the clamping portion becomes smaller, the telescopic connection between the pushing member and the rod portion changes from an adjustable state to a non-adjustable state.

[0009] In some possible implementation manners, the cam member is provided with a clamping portion and an acting portion extending outward along the rotation axis. The clamping portion is used to drive the cam member to rotate, and the acting portion is used to follow the rotation of the cam member and act on the pushing member to drive the pushing member to move.

[0010] In some possible implementation manners, the acting portion includes a first portion and a second portion, and the distance from the first portion to the rotation axis of the cam member is larger than the distance from the second portion to the rotation axis of the cam member.

[0011] In some possible implementation manners, the driving portion is provided on the first portion of the acting portion.

[0012] In some possible implementation manners, a first elastic member is provided between the pushing member and the rod portion, and the first elastic member is used to provide a force for the pushing member to move away from the clamping portion.

[0013] In some possible implementation manners, the first elastic member includes a first spring member. One end of the first spring member abuts against the pushing member, and the other end of the first spring member abuts against the rod portion.

[0014] In some possible implementation manners, the adjustable clamping device further includes a movable clamping member. A clamping portion is provided on the side of the ejector rod facing the pushing member, and an abutting portion is provided on the side of the connecting base facing the pushing member. The movable clamping member is displaceably disposed on the pushing member. The first end of the movable clamping member faces the clamping portion, and the second end of the movable clamping member faces the abutting portion. The movable clamping member is elastically connected to the pushing member. When the distance between the pushing member and the clamping portion decreases, the abutting portion is used to abut against the second end of the movable clamping member to drive the first end of the movable clamping member to move close to the clamping portion so as to be clamped with the clamping portion. When the distance between the pushing member and the clamping portion is the largest, the movable clamping member disengages from the clamping portion under the action of the elastic force.

[0015] In some possible implementation manners, a second elastic member is provided between the movable clamping member and the pushing member, and the second elastic member is used to provide a force for the movable clamping member to move in the direction close to the abutting portion.

[0016] In some possible implementation manners, one end of the slide rail is provided with an opening, and the driving part enters the slide rail through the opening.

[0017] In some possible implementation manners, the driving part is snap-connected to the slide rail, and the cam part is used to push or pull the ejector rod mechanism.

[0018] The adjustable clamping device provided by the embodiment of the present invention realizes the dynamic adjustment of the clamping space through the coordinated work of the connection base, the ejector rod mechanism and the cam part. When the cam part rotates, the driving part thereon slides in the slide rail of the ejector rod mechanism, thereby controlling the position change of the ejector rod mechanism, so that the space formed between the clamping part and the ejector rod mechanism can be adjusted according to the thickness of the object to be clamped, ensuring that objects of different thicknesses can be firmly fixed, avoiding the problem that the traditional clamping device cannot effectively clamp objects of different thicknesses due to the fixed clamping space, greatly improving the flexibility and application range of the clamping device, effectively avoiding the risk of object falling off or damage, and improving the safety and convenience of operation. Description of the Drawings

[0019] Figure 1 is a three-dimensional schematic diagram of the overall structure of the adjustable clamping device provided by the embodiment of the present invention.

[0020] Figure 2 is a three-dimensional schematic diagram of the overall structure of the adjustable clamping device provided by the embodiment of the present invention.

[0021] Figure 3 is an exploded schematic diagram of the overall structure of the adjustable clamping device provided by the embodiment of the present invention.

[0022] Figure 4 is a connection schematic diagram of the cam part and the ejector rod mechanism in the adjustable clamping device provided by the embodiment of the present invention.

[0023] Figure 5 is a structural schematic diagram of the ejector rod mechanism in the adjustable clamping device provided by the embodiment of the present invention.

[0024] Figure 6 is a structural schematic diagram of the connection base in the adjustable clamping device provided by the embodiment of the present invention;

[0025] Figure 7 is a position schematic diagram of the movable clamping part when the distance between the pushing part and the clamping part in the adjustable clamping device provided by the embodiment of the present invention is the largest;

[0026] Figure 8 is a position schematic diagram of the movable clamping part when the distance between the pushing part and the clamping part in the adjustable clamping device provided by the embodiment of the present invention becomes smaller;

[0027] Figure 9 It is a top - view plane schematic diagram of the overall structure of the adjustable clamping device provided by an embodiment of the present utility model;

[0028] Figure 10 It is taken from Figure 9 a side - view schematic diagram of the cross - section line A - A;

[0029] Figure 11 It is a schematic diagram of the elastic connection between the movable clamping member and the pushing member of the adjustable clamping device provided by an embodiment of the present utility model;

[0030] Figure 12 It is a top - view plane schematic diagram of the overall structure of the adjustable clamping device provided by an embodiment of the present utility model;

[0031] Figure 13 It is taken from Figure 12 a side - view schematic diagram of the cross - section line B - B.

[0032] Explanation of reference numerals: 100, connection base; 110, clamping part; 111, second anti - slip member; 120, abutting part; 130, first protrusion; 140, second protrusion; 200, ejector rod mechanism; 210, slide rail; 211, opening; 220, pushing member; 221, second groove; 222, third protrusion; 230, ejector rod; 231, abutting end; 2311, first anti - slip member; 232, rod part; 233, clamping part; 2331, first tooth; 234, first groove; 235, third groove; 300, cam member; 310, driving part; 320, buckling part; 330, acting part; 331, first part; 332, second part; 340, rotating shaft; 400, first elastic member; 410, first spring member; 500, movable clamping member; 510, first end; 511, second tooth; 520, second end; 600, second elastic member; 700, adapter. Detailed implementation manners

[0033] The general idea of the technical solution provided by the present utility model is as follows:

[0034] Please refer to Figures 1 to 12 , an adjustable clamping device, including:

[0035] A connection base 100, one end of the connection base 100 is provided with a clamping part 110; It can be understood that the connection base 100 is the basic part of the adjustable clamping device, and the clamping part 110 provided at one end of the connection base 100 is used to fix the adjustable clamping device to a specific position, such as on the car machine screen in the vehicle;

[0036] The ejector rod mechanism 200 is displaceably connected to the other end of the connection base 100. A space for clamping an object is formed between one end of the ejector rod mechanism 200 facing the clamping part 110 and the clamping part 110. By controlling the displacement of the ejector rod mechanism 200, the clamping space between the ejector rod mechanism 200 and the clamping part 110 is adjusted, so as to adjust the size of the clamping space to adapt to objects of different thicknesses.

[0037] The cam member 300 is rotatably connected to the other end of the connection base 100. A driving part 310 is provided on the cam member 300. A slide rail 210 is provided on the ejector rod mechanism 200. The driving part 310 is slidably connected to the slide rail 210. The driving part 310 is used to slide in the slide rail 210 following the rotation of the cam member 300 to control the displacement of the ejector rod mechanism 200. It can be understood that the cam member 300 is mainly used to convert rotational motion into linear motion or control the motion of other mechanical components. The cam member 300 usually has an irregular contour or shape. When it rotates, this irregular shape will contact other mechanical components, thereby generating a specific motion trajectory or control action. In this application, when the cam member 300 rotates, the driving part 310 will rotate following the cam member 300, and the driving part 310 will slide along the slide rail 210. This sliding action will push the ejector rod mechanism 200 to move accordingly. In this way, the cam member 300 controls the distance between the clamping part 110 and the ejector rod mechanism 200, and further adjusts the size of the clamping space. It should be noted that the driving part 310 is not arranged on the rotation axis of the cam member 300. Because the working principle of the cam member 300 is to use the specific shape of the cam contour to control the motion of the follower (such as the ejector rod mechanism 200). If the driving part 310 is located at the rotation axis of the cam, it will not be able to provide enough motion to push the follower to perform the required linear motion or other predetermined motions.

[0038] Through the coordinated work of the connection base 100, the ejector rod mechanism 200 and the cam member 300, the dynamic adjustment of the clamping space is realized. When the cam member 300 rotates, the driving part 310 thereon will slide in the slide rail 210 of the ejector rod mechanism 200, and then control the position change of the ejector rod mechanism 200, so that the space formed between the clamping part 110 and the ejector rod mechanism 200 can be adjusted according to the thickness of the object to be clamped, ensuring that objects of different thicknesses can be firmly fixed, avoiding the problem that traditional clamping devices cannot effectively clamp objects of different thicknesses due to the fixed clamping space, greatly improving the flexibility and application range of the clamping device, effectively avoiding the risk of object falling off or damage, and improving the safety and convenience of operation.

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] Please refer to Figures 1 to 4 , the ejector rod mechanism 200 includes a pusher 220 and an ejector rod 230. The ejector rod 230 includes a contact end 231 and a rod portion 232. A space for clamping an object is formed between the end of the contact end 231 facing the clamping portion 110 and the clamping portion 110; the pusher 220 is slidably connected to the other end of the connection base 100, and when the pusher 220 slides, the distance between the pusher 220 and the clamping portion 110 can be changed; the pusher 220 is telescopically connected to the rod portion 232 of the ejector rod 230. This connection method allows the user to adjust the relative position between the ejector rod 230 and the pusher 220. The slide rail 210 is provided on the pusher 220, and when the driving portion 310 moves, it can drive the pusher 220 to displace;

[0041] By driving the cam member 300 to change the distance between the pusher 220 and the clamping portion 110; when the distance between the pusher 220 and the clamping portion 110 is the largest, the telescopic connection between the pusher 220 and the rod portion 232 is in an adjustable state, which means that the user can freely move the ejector rod 230 and adjust the distance between it and the clamping portion 110 to adapt to objects of different sizes; when the distance between the pusher 220 and the clamping portion 110 becomes smaller, the telescopic connection between the pusher 220 and the rod portion 232 changes from an adjustable state to a non-adjustable state. At this time, the pusher 220 and the rod portion 232 are relatively fixed, and the pusher 220 can push the contact end 231 through the rod portion 232 to clamp the object together with the clamping portion 110. After clamping the object, the cam member 300 locks the pusher 220 at this time to prevent it from moving during use and ensure that the contact end 231 and the clamping portion 110 stably clamp the electronic device.

[0042] It can be understood that a locking and releasing mechanism may be included between the pushing member 220 and the ejector rod 230. When the distance between the pushing member 220 and the clamping portion 110 is at its maximum, the locking mechanism is released, allowing the user to freely adjust the relative positions of the ejector rod 230 and the pushing member 220. As the distance between the pushing member 220 and the clamping portion 110 decreases, the locking mechanism is activated again to fix the relative positions of the ejector rod 230 and the pushing member 220. Alternatively, a snap or locking structure may be designed between the pushing member 220 and the rod portion 232, allowing the user to unlock by a simple pressing or triggering action when the distance between the pushing member 220 and the clamping portion 110 is at its maximum, and then adjust the position of the ejector rod 230. After the adjustment is completed, press or trigger again to lock the position.

[0043] By driving the cam member 300 to change the distance between the pushing member 220 and the clamping portion 110; when the distance between the pushing member 220 and the clamping portion 110 is at its maximum, the telescopic connection between the pushing member 220 and the rod portion 232 is in an adjustable state, that is, the distance between the rod portion 232 and the pushing member 220 can be telescopically adjusted, and the rod portion 232 can drive the abutting end 231 to move, so as to adjust the distance between the abutting end 231 and the clamping portion 110, and realize the adjustment of the space for clamping an object; after adjusting the space for clamping an object, by driving the cam member 300 to make the distance between the pushing member 220 and the clamping portion 110 decrease, the telescopic connection between the pushing member 220 and the rod portion 232 changes from an adjustable state to a non-adjustable state, so that the pushing member 220 can drive the rod portion 232 to clamp the object between the abutting end 231 and the clamping portion 110. By driving the cam member 300, the adjustable clamping space between the abutting end 231 and the clamping portion 110 can be realized, so as to adapt to screens of different sizes and thicknesses. After adjusting the appropriate clamping space, the cam member 300 makes the distance between the pushing member 220 and the clamping portion 110 decrease, prompting the ejector rod mechanism 200 to enter a non-adjustable state, that is, the telescopic connection between the pushing member 220 and the rod portion 232 is in a non-adjustable state, and the pushing member 220 can drive the ejector rod 230 with a fixed distance to clamp the object, ensuring its stable clamping, thereby improving the versatility and practicability.

[0044] Please refer to Figure 4, the cam member 300 is provided with a clamping portion 320 and an acting portion 330 extending outward along the rotation axis. The clamping portion 320 is used to drive the cam member 300 to rotate, and the acting portion 330 is used to follow the rotation of the cam member 300 and act on the pushing member 220 to drive the pushing member 220 to move. It can be understood that the other end of the cam member 300 and the connecting base 100 can be rotatably connected through a rotating shaft 340. The cam member 300 can perform a rotational movement around the rotating shaft 340. The clamping portion 320 is a structure extending outward along the rotation axis on the cam member 300. The user can rotate the cam member 300 by applying a force to the clamping portion 320. The acting portion 330 also extends outward along the rotation axis. When the cam member 300 rotates, the acting portion 330 will rotate together with the cam member 300 and act on the pushing member 220. The function of the acting portion 330 is to interact with the pushing member 220. This interaction can be a pushing or pulling action. This pushing and pulling action drives the pushing member 220 to move in a predetermined direction, thereby realizing the driving of the pushing member 220. More specifically, the pushing action means that when the acting portion 330 rotates to a position in contact with the pushing member 220, continuing to rotate the cam member 300 will cause the acting portion 330 to apply a direct thrust to the pushing member 220. This thrust can be perpendicular to the surface of the pushing member 220 or applied at a specific angle, depending on the design of the pushing member 220 and the required movement direction. The pushing action is used to move the pushing member 220 along the direction close to the clamping portion 110, so that the distance between the pushing member 220 and the clamping portion 110 becomes smaller. In addition, when the driving portion 310 rotates along with the rotation of the cam member 300, it slides along the slide rail 210 and pushes the pushing member 220, and the pushing action can also be completed. The pulling action can be achieved when the driving portion 310 rotates along with the rotation of the cam member 300, slides along the slide rail 210 and pulls up the pushing member 220. The pulling action is used to move the pushing member 220 along the direction away from the clamping portion 110, so that the distance between the pushing member 220 and the clamping portion 110 becomes larger.

[0045] Further, please refer to Figure 4, the acting part 330 includes a first part 331 and a second part 332. The distance from the first part 331 to the rotation axis of the cam member 300 is greater than the distance from the second part 332 to the rotation axis of the cam member 300. In the initial state, the second part 332 of the cam member 300 abuts against the pushing member 220, and at this time the pushing member 220 is in the first position. When the user rotates the cam member 300, as the cam member 300 rotates, the first part 331 contacts the pushing member 220 and begins to abut against the pushing member 220 to move. Since the first part 331 is farther from the rotation axis, the first part 331 can abut against and push the pushing member 220 to displace a certain distance, so that the pushing member 220 moves to the second position. The first part 331 can lock the pushing member 220 in the second position. This design realizes the adjustment and locking of the pushing member 220 through a simple rotation action, and the operation is simple and stable. The user can easily adjust and fix the clamping device without additional tools.

[0046] Further, please refer to Figure 4 and Figure 13 , the driving part 310 is arranged on the first part 331 of the acting part 330. The driving part 310 can slide in the slide rail 210 arranged on the pushing member 220 following the first part 331 and drive the pushing member 220 to displace.

[0047] Please refer to Figure 3 , a first elastic member 400 is arranged between the pushing member 220 and the rod part 232. The first elastic member 400 is used to provide a force for the pushing member 220 to move away from the clamping part 110. The first elastic member 400 is used to provide a force for the pushing member 220 to move away from the clamping part 110. Specifically, when the rod part 232 is stressed, the rod part 232 can provide a force for the pushing member 220 to move away from the clamping part 110 through the first elastic member 400, so that the distance between the pushing member 220 and the clamping part 110 becomes larger. In this design, the user can make the distance between the pushing member 220 and the clamping part 110 larger by only pushing the rod part 232 without driving the cam member 300. If there is no first elastic member 400 between the pushing member 220 and the rod part 232, it is necessary to rotate the cam member 300 to pull the pushing member 220 to make the distance between the pushing member 220 and the clamping part 110 larger.

[0048] Please refer to Figure 4 and Figure 10, the first elastic member 400 includes a first spring member 410. One end of the first spring member 410 abuts against the pushing member 220, and the other end of the first spring member 410 abuts against the rod portion 232. Specifically, the first spring member 410 can provide a tensile force that tends to move the pushing member 220 and the rod portion 232 away from each other. When the distance between the pushing member 220 and the clamping portion 110 is the largest, the telescopic connection between the pushing member 220 and the rod portion 232 is in an adjustable state. The first spring member 410 can push the pushing member 220 and the rod portion 232 to be in the maximum extended state. The tensile force of the first spring member 410 can be transmitted to the abutting end 231 through the rod portion 232, so that the abutting end 231 and the clamping portion 110 can maintain a certain clamping force when clamping objects of different thicknesses, thereby realizing the adaptive clamping of objects of different thicknesses.

[0049] Please refer to Figures 4 to 10 , the clamping device further includes a movable clamping member 500. A clamping portion 233 is provided on the side of the ejector rod 230 facing the pushing member 220, and an abutting portion 120 is provided on the side of the connecting base 100 facing the pushing member 220. The movable clamping member 500 is displaceably inserted through the pushing member 220. The first end 510 of the movable clamping member 500 faces the clamping portion 233, and the second end 520 of the movable clamping member 500 faces the abutting portion 120. The movable clamping member 500 is elastically connected to the pushing member 220. When the distance between the pushing member 220 and the clamping portion 110 decreases, the abutting portion 120 is used to abut against the second end 520 of the movable clamping member 500 to drive the first end 510 of the movable clamping member 500 to move closer to the clamping portion 233 so as to be clamped with the clamping portion 233. When the distance between the pushing member 220 and the clamping portion 110 is the largest, the movable clamping member 500 disengages from the clamping portion 233 under the action of the elastic force. Specifically, the movable clamping member 500 is designed to be displaceably inserted through the pushing member 220. This design allows the movable clamping member 500 to move on the pushing member 220. The elastic connection between the movable clamping member 500 and the pushing member 220 means that there is a certain elastic force between the movable clamping member 500 and the pushing member 220, which can push the movable clamping member 500 back to the initial position. When the distance between the pushing member 220 and the clamping portion 110 decreases, the pushing member 220 will drive the movable clamping member 500 to move closer to the abutting portion 120. As the movable clamping member 500 contacts the abutting portion 120, the abutting portion 120 will abut against the second end 520 of the movable clamping member 500, driving the first end 510 of the movable clamping member 500 to move closer to the clamping portion 233, thereby realizing the clamping with the clamping portion 233.

[0050] Please refer to Figure 6 and Figure 10 , the abutting portion 120 is a structure that gradually protrudes along the direction in which the movable clamping member 500 moves closer to the abutting portion 120. Please refer to Figure 7, when the distance between the pushing member 220 and the clamping portion 110 is at its maximum, the movable clamping member 500 is maintained in its initial state under the elastic force of the elastic connection with the pushing member 220. At this time, the second end 520 of the movable clamping member 500 does not come into contact with the clamping portion 233. At this time, the ejector rod 230 can move freely relative to the pushing member 220. That is, when the distance between the pushing member 220 and the clamping portion 110 is at its maximum, the telescopic connection between the pushing member 220 and the rod portion 232 is in an adjustable state; Please refer to Figure 8 , when the distance between the pushing member 220 and the clamping portion 110 decreases, the pushing member 220 drives the movable clamping member 500 to move in the direction close to the abutting portion 120. The protruding portion of the abutting portion 120 will gradually abut against the second end 520 of the movable clamping member 500, pushing the first end 510 of the movable clamping member 500 close to the clamping portion 233 and engaging with the clamping portion 233. At this time, the ejector rod 230 is relatively fixed to the pushing member 220 through the engagement of the movable clamping member 500 and the clamping portion 233. Thus, when the distance between the pushing member 220 and the clamping portion 110 decreases, the telescopic connection between the pushing member 220 and the rod portion 232 changes from an adjustable state to a non-adjustable state.

[0051] Please refer to Figure 4 , Figure 10 and Figure 11 , the clamping portion 233 is provided with a plurality of first teeth 2331, and the first end 510 of the movable clamping member 500 is provided with a plurality of second teeth 511. The first teeth 2331 are used for meshing connection with the second teeth 511. Specifically, when the distance between the pushing member 220 and the clamping portion 110 decreases, the first end 510 of the movable clamping member 500 will approach the clamping portion 233, and the second teeth 511 will mesh with the first teeth 2331, thereby realizing the clamping of the first end 510 of the movable clamping member 500 with the clamping portion 233.

[0052] Please refer to Figure 11 , a second elastic member 600 is provided between the movable clamping member 500 and the pushing member 220. The second elastic member 600 is used to provide a force for the movable clamping member 500 to move in the direction close to the abutting portion 120. The second elastic member 600 can be a spring. When the movable clamping member 500 is abutted by the abutting portion 120, it will have a certain displacement, but after the abutting action of the abutting portion 120 is removed, it can return to the initial position through the restoring force of the second elastic member 600.

[0053] Please refer to Figure 3 , Figure 4 and Figure 6, one of a first protrusion 130 and a first groove 234 is provided on the ejector rod 230, the other of the first protrusion 130 and the first groove 234 is provided on the connecting base 100, the first protrusion 130 extends into the first groove 234 and is slidably connected with the first groove 234. One of a second protrusion 140 and a second groove 221 is provided on the pusher 220, the other of the second protrusion 140 and the second groove 221 is provided on the connecting base 100, the second protrusion 140 extends into the second groove 221 and is slidably connected with the second groove 221. It can be understood that the ejector rod 230 and the pusher 220 are slidably connected to the connecting base 100 through the combination of the first protrusion 130 and the first groove 234 and the second protrusion 140 and the second groove 221. This design allows the ejector rod 230 and the pusher 220 to slide on the connecting base 100 in a specific direction. Through this sliding connection mechanism, the user can easily adjust the positions of the ejector rod 230 and the pusher 220.

[0054] Please refer to Figure 5 , one of a third protrusion 222 and a third groove 235 is provided on the ejector rod 230, the other of the third protrusion 222 and the third groove 235 is provided on the pusher 220, the third protrusion 222 extends into the third groove 235 and is slidably connected with the third groove 235. It can be understood that the design of the third protrusion 222 and the third groove 235 allows the ejector rod 230 and the pusher 220 to slide and adjust relative to each other in a specific direction.

[0055] Please refer to Figure 1 and Figure 2 , one end of the abutting end 231 facing the clamping portion 110 is provided with a first anti-slip member 2311, and the clamping portion 110 is provided with a second anti-slip member 111. It can be understood that the purpose of these two first anti-slip members 2311 and the second anti-slip member 111 is to increase the friction of the contact surface and prevent the object from sliding or moving after being clamped by the abutting end 231 and the clamping portion 110. The anti-slip members are usually made of rubber, soft plastic or other materials with a high coefficient of friction. They can provide additional gripping force when contacting the object to ensure that the object is firmly clamped.

[0056] Please refer to Figure 3 and Figure 13 , one end of the slide rail 210 is provided with an opening 211, and the driving portion 310 enters the slide rail 210 through the opening 211. This opening 211 is designed to facilitate the assembly of the driving portion 310. The opening 211 can be a notch or cut at the end of the slide rail 210, and its size is sufficient for the driving portion 310 to pass through.

[0057] Further, the driving part 310 is snap-connected to the slide rail 210. The cam member 300 is used to push or pull the ejector rod mechanism 200. The driving part 310 is snap-connected to the slide rail 210. Specifically, when the cam member 300 rotates, the driving part 310 is driven. The driving part 310 can move along the slide rail 210. And because the driving part 310 is snap-connected to the slide rail 210, the driving part 310 can slide within the slide rail 210 and push or pull the ejector rod mechanism 200 through the slide rail 210. For example, the slide rail 210 can be a concave groove designed on the ejector rod mechanism 200. The driving part 310 can be a pin or a convex block designed at a position non-centered on the non-rotating shaft 340 of the cam member 300 and matching the concave groove. The pin or the convex block entering the concave groove can achieve snap connection.

[0058] Please refer to Figures 1 to 3 , the clamping device further includes an adapter 700. The adapter 700 is provided on the connection base 100. The adapter 700 is used to connect an electronic device. It can be understood that the adapter 700 can be connected to the electronic device (such as a mobile phone) through a mobile phone holder or directly connected to the electronic device. Since the adapter 700 is a mature technology in the art, it will not be elaborated here. It can adopt some widely recognized design solutions, such as a universal ball head, a magnetic suction bracket, etc., and is not limited thereto.

[0059] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0060] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. An adjustable clamping device, characterized in that, Comprising: A connecting base, one end of the connecting base is provided with a clamping portion; A ejector rod mechanism, the ejector rod mechanism is displaceably connected to the other end of the connecting base, and a space for clamping an object is formed between one end of the ejector rod mechanism facing the clamping portion and the clamping portion; A cam member, the cam member is rotatably connected to the other end of the connecting base, a driving portion is provided on the cam member, a sliding rail is provided on the ejector rod mechanism, and the driving portion is slidably connected to the sliding rail, and the driving portion is used to slide in the sliding rail following the rotation of the cam member to control the displacement of the ejector rod mechanism.

2. The adjustable clamping device according to claim 1, wherein The ejector rod mechanism includes a pushing member and an ejector rod, the ejector rod includes a resisting end and a rod portion, and a space for clamping an object is formed between one end of the resisting end facing the clamping portion and the clamping portion; the pushing member is slidably connected to the other end of the connecting base, and the distance between the pushing member and the clamping portion can be changed when the pushing member slides; the pushing member is telescopically connected to the rod portion of the ejector rod, and the sliding rail is provided on the pushing member; By driving the cam member to change the distance between the pushing member and the clamping portion; when the distance between the pushing member and the clamping portion is the largest, the telescopic connection between the pushing member and the rod portion is in an adjustable state; when the distance between the pushing member and the clamping portion becomes smaller, the telescopic connection between the pushing member and the rod portion changes from an adjustable state to a non-adjustable state.

3. The adjustable clamping device according to claim 2, characterized in that, The cam member is provided with a buckling portion and an acting portion extending outward along the rotation axis, the buckling portion is used to drive the cam member to rotate, and the acting portion is used to follow the rotation of the cam member and act on the pushing member to drive the pushing member to move.

4. The adjustable clamping device according to claim 3, wherein, The acting portion includes a first part and a second part, and the distance from the first part to the rotation axis of the cam member is larger than the distance from the second part to the rotation axis of the cam member.

5. The adjustable clamping device according to claim 4, characterized in that, The driving portion is provided on the first part of the acting portion.

6. The adjustable clamping device according to claim 2, wherein A first elastic member is provided between the pushing member and the rod portion, and the first elastic member is used to provide a force for the pushing member to move away from the clamping portion.

7. The adjustable clamping device according to claim 6, wherein, The first elastic member includes a first spring member, one end of the first spring member abuts against the pushing member, and the other end of the first spring member abuts against the rod portion.

8. The adjustable clamping device according to claim 2, characterized in that, It further includes a movable clamping member, a clamping portion is provided on one side of the ejector rod facing the pushing member, an abutting portion is provided on one side of the connecting base facing the pushing member, the movable clamping member is displaceably inserted through the pushing member, the first end of the movable clamping member faces the clamping portion, the second end of the movable clamping member faces the abutting portion, the movable clamping member is elastically connected to the pushing member, when the distance between the pushing member and the clamping portion decreases, the abutting portion is used to abut against the second end of the movable clamping member to drive the first end of the movable clamping member to move close to the clamping portion to be clamped with the clamping portion, and when the distance between the pushing member and the clamping portion is the largest, the movable clamping member disengages from the clamping portion under the action of the elastic force.

9. The adjustable clamping device according to claim 8, characterized in that, A second elastic member is provided between the movable card member and the pushing member, and the second elastic member is used to provide a force for the movable card member to move in the direction close to the abutting top portion.

10. The adjustable clamping device according to any one of claims 1-9, characterized in that, One end of the slide rail is provided with an opening, and the driving portion enters the slide rail through the opening.

11. The adjustable clamping device according to claim 10, wherein, The driving portion is detachably connected to the slide rail, and the cam member is used to push or pull the ejector rod mechanism.

Images