Clamping device

Abstract

The utility model relates to the technical field of electronic equipment accessories, in particular to a clamping device. Comprising a connecting arm and a fixing module, a first connecting part is arranged at one end of the connecting arm, a sliding groove is formed in the first connecting part, and a plurality of limiting grooves are formed in the sliding groove; the fixing module is provided with a second connecting part, the second connecting part is rotationally connected with the first connecting part, and the side, facing the sliding groove, of the second connecting part is provided with a limiting ball which moves relative to the second connecting part. The limiting ball is matched with the limiting groove so that the fixing module can be limited and move relative to the connecting arm. The problem that in the prior art, a limiting structure is complex in structure arrangement is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment accessories, in particular to a clamping device. Background Art

[0002] With the increasing demand for the use of electronic photographic equipment, photographic tools such as selfie sticks, tripods and electronic device stands with clamping functions have emerged. Such photographic tools can be extended or retracted arbitrarily within a certain length range. Users only need to fix the photographic equipment on the photographic tool through a fixing module, so that users can have a longer shooting distance than their arms when shooting, and can conveniently choose more shooting angles.

[0003] The existing shooting tools are provided with a fixed module and a retractable clamping arm. The fixed module and the clamping arm are used to clamp the shooting equipment, and the fixed module needs to be rotatably connected with the handheld connecting arm, so as to facilitate shooting at multiple angles and in multiple ranges.

[0004] During handheld photography, the fixed module and the clamping arm need to be kept relatively fixed for the purpose of taking photos, so a limiting structure needs to be set between the clamping arm and the fixed module. However, existing limiting structures, such as setting a knob for fixing or limiting through a gear structure, are relatively complicated. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the utility model is to provide a clamping device to solve the problem that the structural setting of the limiting structure in the prior art is relatively complicated.

[0006] The utility model discloses a clamping device, comprising: a connecting arm and a fixed module, one end of the connecting arm is provided with a first connecting part, the first connecting part is provided with a sliding groove, and a plurality of limiting grooves are provided in the sliding groove; the fixed module is connected to the first connecting part through a connecting component so that the fixed module is rotatably connected to the first connecting part, a limiting ball corresponding to the sliding groove is provided on the side of the fixed module facing the sliding groove, the limiting ball moves elastically relative to the fixed module, and the moving direction is toward the positive direction of the first connecting part, and the limiting ball cooperates with the limiting groove to limit the fixed module relative to the connecting arm.

[0007] Optionally, the fixed module includes a first shell and a second shell connected to each other, the first shell is provided with a second connecting portion on the side facing the connecting arm, the second connecting portion is provided with a limiting hole, and a first elastic member is also provided in the limiting hole so that when the limiting ball is accommodated in the limiting hole, it is partially exposed to one side of the sliding groove.

[0008] Optionally, an extension platform is also provided on the first shell, the second connecting portion is provided on a side of the extension platform facing the connecting arm, a rotation groove is provided on a side of the connecting arm facing the first shell, the first connecting portion is provided at the bottom of the rotation groove, and the extension platform is installed in the rotation groove.

[0009] Optionally, the fixed module also includes a fixed seat, and the first elastic member is located between the fixed member and the limiting ball; the second connecting part is provided with at least two limiting openings, and the side of the fixed seat facing the second connecting part is provided with a limiting buckle that cooperates with the limiting opening, and the fixed seat is snap-connected with the first shell.

[0010] Optionally, the limiting buckle includes a supporting portion and a limiting portion, the supporting portion is arranged on opposite sides of the fixing seat, the supporting portion is arranged and extends toward the first shell, the end of the supporting portion facing the first shell is provided with a limiting portion protruding toward the outside of the fixing seat, and the limiting portion is provided with a guide inclined surface.

[0011] Optionally, the connecting assembly also includes a screw and a nut, a first connecting part is provided with a first connecting hole, and a second connecting part is provided with a second connecting hole, the screw passes through the first connecting hole and the second connecting hole in sequence, and is connected to the nut located on the side of the first shell facing the second shell.

[0012] Optionally, a receiving groove is provided on a side surface of the first shell facing away from the first connecting portion, and the nut is arranged in the receiving groove; wherein the receiving groove is a contoured groove of the nut.

[0013] Optionally, a sinking groove is provided at the first connecting hole, and a cover plate is further provided on the connecting arm, and the cover plate is covered in the sinking groove.

[0014] Optionally, the fixed module also includes a clamping assembly, a first avoidance groove is provided on the side of the fixed base facing the second shell, a second avoidance groove is formed on the second shell, the clamping assembly is arranged between the first avoidance groove and the second avoidance groove, the clamping assembly includes two clamping arms, at least one of the clamping arms can move away from the other clamping arm, the first shell and the second shell jointly form two avoidance holes, and the clamping arms pass through the avoidance holes to clamp the electronic device to the fixed module.

[0015] Optionally, the clamping assembly also includes a fixing portion, which is arranged between the first avoidance groove and the second avoidance groove, and the clamping arm is arranged at opposite ends of the fixing portion, and the clamping arm includes an arm body and a clamping claw connected to each other, the arm body and the fixing portion are connected by a second elastic member, and the clamping claw is arranged at the free end of the arm body.

[0016] Compared with the prior art, the beneficial effect of the clamping device provided by the embodiment of the utility model is that the first connecting part of the connecting arm and the fixed module are connected in rotation through the connecting assembly, and the limiting ball on the fixed module can slide in the sliding groove on the first connecting part, providing a smoother and more stable movement performance for the rotational connection between the connecting arm and the fixed module. There is a limiting groove in the sliding groove. When the limiting ball slides to the limiting groove in the sliding groove, the limiting ball will have a large damping force in the limiting groove, thereby playing the role and purpose of limiting and positioning the relative position between the connecting arm and the fixed module. In actual use, when the user needs to position the clamping device at a certain angle or position, the limiting ball is moved to the limiting groove by twisting the fixed module, so that the limiting ball is accommodated in the limiting groove to limit and position the clamping device in this state. When the user needs to release the restriction of the clamping device at this position, the user needs to apply a certain amount of external force to make the limiting ball move elastically relative to the fixed module, and the moving direction is toward the positive direction of the first connecting part, that is, the limiting ball is squeezed by the external force and retracted toward one side of the fixed module, and the limiting ball can be transferred from the limiting groove to the sliding groove again. When the limiting ball moves to the sliding groove, it can be restored to its original position, and the relative movement between the connecting arm and the fixed module is restored. This limiting method has a simple structure and relatively stable operation, and is less affected by external factors and usage time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 is a schematic diagram of a clamping device provided in an embodiment of the utility model;

[0019] Figure 2 is an exploded schematic diagram of a clamping device provided in an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of a connecting arm provided in an embodiment of the utility model;

[0021] Figure 4 This is one of the schematic diagrams of the first shell provided by the embodiment of the utility model;

[0022] Figure 5 This is the second schematic diagram of the first housing provided by the embodiment of the utility model;

[0023] Figure 6 This is one of the schematic diagrams of the fixing base provided in the embodiment of the utility model;

[0024] Figure 7 This is the second schematic diagram of the fixing base provided by the embodiment of the utility model;

[0025] Figure 8 It is a schematic diagram of the clamping assembly and the second shell provided in an embodiment of the utility model.

[0026] The reference numerals in the figures are:

[0027] 1000, clamping device; 100, connecting arm; 101, first connecting part; 1011, sliding groove; 1012, limiting groove; 1013, first connecting hole; 1014, sinking groove; 102, rotating groove; 103, cover plate; 200, fixed module; 201, first shell; 2011, second connecting part; 20111, limiting opening; 20112, second connecting hole; 2012, limiting ball; 2013, limiting hole; 2014, extension platform; 2015, receiving groove; 20 2. Second shell; 2021. Second avoidance groove; 203. Fixed seat; 2031. First elastic member; 2032. Limit buckle; 20321. Support part; 20322. Limit part; 20323. Guide slope; 2033. First avoidance groove; 204. Avoidance hole; 300. Connecting assembly; 301. Screw; 302. Nut; 400. Clamping assembly; 401. Fixed part; 402. Clamping arm; 4021. Arm body; 4022. Clamping claw; 403. Second elastic member. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, a preferred embodiment of the present utility model is described in detail.

[0029] The present utility model embodiment provides a clamping device 1000, such as Figure 1-3 As shown, the clamping device 1000 includes: a connecting arm 100 and a fixed module 200, one end of the connecting arm 100 has a first connecting part 101, the first connecting part 101 is provided with a sliding groove 1011, and the sliding groove 1011 is provided with a plurality of limiting grooves 1012; the fixed module 200 and the first connecting part 101 are connected through a connecting assembly 300 so that the fixed module 200 and the first connecting part 101 are rotatably connected, and a limiting ball 2012 corresponding to the sliding groove 1011 is provided on the side of the fixed module 200 facing the sliding groove 1011, the limiting ball 2012 moves elastically relative to the fixed module 200, and the moving direction is toward the positive direction of the first connecting part 101, and the limiting ball 2012 cooperates with the limiting groove 1012 to limit the fixed module 200 relative to the connecting arm 100.

[0030] The first connection part 101 of the connecting arm 100 and the fixed module 200 are connected in rotation through the connection assembly 300. The limiting ball 2012 on the fixed module 200 can slide in the sliding groove 1011 on the first connection part 101, providing a smoother and more stable movement performance for the rotation connection between the connecting arm 100 and the fixed module 200. The sliding groove 1011 has a limiting groove 1012. When the limiting ball 2012 slides in the sliding groove 1011 to the limiting groove 1012, the limiting ball 2012 will have a large damping force in the limiting groove 1012, thereby playing the role and purpose of limiting and positioning the relative position between the connecting arm 100 and the fixed module 200. During actual use, when the user needs to position the clamping device 1000 at a certain angle or position, the user twists the fixed module 200 to move the limiting ball 2012 into the limiting groove 1012 so that the limiting ball 2012 is accommodated in the limiting groove 1012 to limit and position the clamping device 1000 in this state. When the user needs to release the restriction of the clamping device 1000 at this position, the user needs to apply a certain amount of external force to make the limiting ball 2012 move elastically relative to the fixed module 200, and the moving direction is toward the positive direction of the first connecting part 101, that is, the limiting ball 2012 is squeezed by the external force and retracted toward the side of the fixed module 200, and the limiting ball 2012 can be transferred from the limiting groove 1012 to the sliding groove 1011 again. When the limiting ball 2012 moves to the sliding groove 1011, it can be restored to its original position, and the relative movement between the connecting arm 100 and the fixed module 200 is restored. This limiting method has a simple structure and is relatively stable in operation, and is less affected by external factors and usage time.

[0031] Specifically, by sliding the limiting ball 2012 into the limiting groove 1012, the range of motion of the fixed module 200 relative to the connecting arm 100 can be limited. This limiting design can ensure that the clamping device 1000 remains stable during use and avoids exceeding the required clamping range. On the other hand, the cooperation between the limiting ball 2012 and the limiting groove 1012 makes the limiting of the fixed module 200 relative to the connecting arm 100 more accurate and reliable. The spherical design of the limiting ball 2012 can provide a larger contact area, which increases the stability and reliability of the limiting. This helps to ensure that the clamping device 1000 can maintain an accurate position and a stable clamping force during operation.

[0032] Specifically, the connection assembly 300 can provide a more efficient and stable connection effect for the rotational connection between the first connection arm 100 and the fixed module 200 .

[0033] It should be noted that the limiting ball 2012 on the fixed module 200 performs a circular motion relative to the first connecting portion 101. When the sliding groove cooperates with the limiting ball 2012, in order to make the limiting ball 2012 move smoothly in the sliding groove 1011, the sliding groove 1011 needs to be set as an arc groove. The fixed module 200 can be provided with a limiting ball 2012 corresponding to multiple limiting grooves 1012 in the sliding groove 1011, that is, a limiting ball 2012 slides in the sliding groove 1011 and cooperates with the limiting grooves 1012 at different angles to achieve multi-angle limiting between the connecting arm 100 and the fixed module 200. In another case, multiple limiting balls 2012 are provided on the fixed module 200 corresponding to multiple limiting grooves 1012 in the sliding groove 1011, and the limiting grooves 1012 and the limiting balls 2012 are set correspondingly. Such a setting method can enhance the stability and connection strength during limiting.

[0034] It should be noted that the limiting ball 2012 elastically moves relative to the fixed module 200, and the moving direction is toward the positive direction of the first connecting part 101, which means that the limiting ball 2012 can be extended and retracted relative to the fixed module 200 in the horizontal direction, that is, when the limiting ball 2012 is squeezed by an external force, the limiting ball 2012 can be retracted and reset relative to the fixed module 200, so that the limiting ball 2012 can retract toward one side of the fixed module 200 when entering and sliding out of the limiting groove 1012, thereby ensuring the integrity of the limiting ball 2012, the fixed module 200 and the first connecting part 101 structure without causing damage or scratches. When the limiting ball 2012 slides into the sliding groove 1011, the limiting ball 2012 is reset to ensure the normal rotation between the connecting arm 100 and the fixed module 200. At the same time, it is also necessary to ensure that the limiting ball 2012 can roll relative to the fixed module 200 on the fixed module 200 , so that the limiting ball 2012 can move to different positions in the sliding groove 1011 .

[0035] refer to Figure 2 The fixed module 200 includes a first shell 201 and a second shell 202 connected to each other. The first shell 201 is provided with a second connecting portion 2011 on the side facing the connecting arm 100. The second connecting portion 2011 is provided with a limiting hole 2013. A first elastic member 2031 is also provided in the limiting hole 2013 so that when the limiting ball 2012 is accommodated in the limiting hole 2013, it is partially exposed to one side of the sliding groove 1011.

[0036] The second connection part 2011 is provided with a limiting hole 2013, and the limiting ball 2012 is accommodated through the limiting hole 2013. The limiting ball 2012 is partially exposed to one side of the sliding groove 1011 through the first elastic member 2031 provided in the limiting hole 2013, that is, the first elastic member 2031 abuts against the limiting ball 2012, so that the limiting ball 2012 has the ability to elastically move relative to the second connection part 2011. The above-mentioned arrangement has a certain protective effect on the limiting ball 2012, and can ensure that the limiting ball 2012 will not be damaged or lost during the movement. At the same time, it can also make the limiting ball 2012 have a certain elastic movement ability when sliding into or out of the limiting groove 1012, which can not only keep the contact between the limiting ball 2012 and the sliding groove 1011 stable, but also avoid damage to the limiting ball 2012, the sliding groove 1011 and the limiting groove 1012. Partial exposure means that the diameter of the limiting hole 2013 is smaller than the diameter of the limiting ball 2012, so the contact area between the limiting ball 2012 and the limiting hole 2013 is larger, which can ensure the stability of the limiting ball 2012 during rolling.

[0037] Specifically, by interconnecting the first housing 201 and the second housing 202, the fixing module 200 of the clamping device 1000 has a compact structure. This compactness can reduce the size of the device, making it easier to install and use. At the same time, the interconnected housings can provide a more stable connection, increasing the stability and reliability of the clamping device 1000.

[0038] Further, refer to Figures 2 to 5 An extension platform 2014 is also provided on the first shell 201, the second connecting portion 2011 is provided on a side of the extension platform 2014 facing the connecting arm 100, a rotating groove 102 is provided on the side of the connecting arm 100 facing the first shell 201, the first connecting portion 101 is provided at the bottom of the rotating groove 102, and the extension platform 2014 is installed in the rotating groove 102.

[0039] The extension platform 2014 is installed in the rotating groove 102, which increases the contact area and connection points between the first shell 201 and the connecting arm 100, provides additional stability and support for the rotating connection between the fixed module 200 and the connecting arm 100, and enhances the connection strength between the second connecting part 2011 and the first connecting part 101, thereby increasing the firmness and stability of the connection.

[0040] Specifically, the extension platform 2014 can be installed in the rotation groove 102, and guides the connection between the connecting arm 100 and the first housing 201, thereby simplifying the assembly process between the two. By inserting the extension platform 2014 into the rotation groove 102, the connection arm 100 and the first housing 201 can be quickly and easily installed. This design reduces the steps and time required for installation, and improves work efficiency.

[0041] refer to Figure 2 , Figure 6 and Figure 7 The fixed module 200 also includes a fixed seat 203, a first elastic member 2031 is located between the fixed member and the limiting ball 2012; at least two limiting openings 20111 are provided on the second connecting portion 2011, and a limiting buckle 2032 matching the limiting opening 20111 is provided on the side of the fixed seat 203 facing the second connecting portion 2011, and the fixed seat 203 is snap-connected with the first shell 201.

[0042] One end of the first elastic member 2031 abuts against the fixed seat 203, and the other end abuts against the limiting ball 2012, which can provide a certain elastic adjustment capability for the limiting ball 2012. When the limiting ball 2012 is subjected to force, the limiting ball 2012 is squeezed and moves toward one side of the fixed seat 203. The limiting ball 2012 applies pressure to the elastic member, and the elastic member is deformed. When the limiting ball 2012 reaches the sliding groove 1011, the elastic member releases pressure and recovers the deformation, pressing the limiting ball 2012 out to the original position, thereby realizing the elastic movement of the limiting ball 2012 relative to the second connecting portion 2011. At the same time, the first elastic member 2031 can play a certain role in shock absorption and buffering, ensuring the stability of the limiting ball 2012 when it moves relative to the second connecting portion 2011.

[0043] Specifically, the clamping device 1000 can realize multiple limiting functions by providing at least two limiting openings 20111 on the second connecting portion 2011 and matching corresponding limiting buckles 2032 on the fixing seat 203. The matching of each limiting opening 20111 and limiting buckle 2032 can fix the fixing seat 203 on the first shell 201, and can provide accurate and stable positioning and fixing between the fixing seat 203 and the first shell 201.

[0044] Specifically, the fixing base 203 is snap-connected with the first housing 201, and this connection mode can provide stable connection and fixation. Through the snap-connection, the fixing base 203 can be firmly fixed on the first housing 201, ensuring that the clamping device 1000 will not loosen or fall off during use. This stable connection can improve the stability and safety of the clamping device 1000.

[0045] Further, refer to Figure 6 and Figure 7 The limiting buckle 2032 includes a supporting portion 20321 and a limiting portion 20322. The supporting portion 20321 is arranged on opposite sides of the fixing seat 203. The supporting portion 20321 is arranged and extends toward the first shell 201. The end of the supporting portion 20321 facing the first shell 201 is provided with a limiting portion 20322 protruding toward the outside of the fixing seat 203, and a guiding inclined surface 20323 is provided on the limiting portion 20322.

[0046] The support portion 20321 is arranged and extends toward the first shell 201, so that the limiting portion 20322 can extend into the limiting opening 20111, and the snap connection between the fixing seat 203 and the first shell 201 is completed by the abutment between the limiting portion 20322 protruding toward the outside and the edge of the limiting opening 20111; the limiting portion 20322 protrudes toward the outside of the first shell 201, so as to engage and limit with the edge of the limiting opening 20111 on the first shell 201, which helps to ensure the stability and reliability of the clamping device 1000.

[0047] Specifically, a guiding slope 20323 is provided on the limiting portion 20322, which can reduce collision and friction when the limiting portion 20322 is extended into the limiting opening 20111, making the snap connection process more convenient and quick.

[0048] refer to Figures 2 to 5 The connecting assembly 300 also includes a screw 301 and a nut 302. A first connecting hole 1013 is opened on the first connecting part 101, and a second connecting hole 20112 is opened on the second connecting part 2011. The screw 301 passes through the first connecting hole 1013 and the second connecting hole 20112 in sequence, and is connected to the nut 302 located on the side of the first shell 201 facing the second shell 202.

[0049] By using the screw 301 and the nut 302 for connection, a relatively stable connection can be achieved between the connecting arm 100 and the fixing module 200. The screw 301 passes through the first connecting hole 1013 and the second connecting hole 20112 in sequence and is connected with the nut 302, so that the clamping device 1000 can be firmly fixed, ensuring that the clamping device 1000 will not loosen or fall off during use.

[0050] Specifically, the use of screw 301 and nut 302 can provide a certain degree of adjustment and flexibility. By rotating screw 301, the degree of tightening of clamping device 1000 can be adjusted. This adjustment and flexibility enables clamping device 1000 to adapt to various work requirements and improve its applicability and versatility.

[0051] On the other hand, due to the connection mode of the screw 301 and the nut 302, the clamping device 1000 can achieve good disassembly. When the clamping device 1000 needs to be replaced or repaired, the connection between the screw 301 and the nut 302 can be disassembled to disassemble the connecting arm 100 and the fixed module 200. This disassembly facilitates the maintenance and replacement of the clamping device 1000 and reduces the maintenance cost.

[0052] Further, refer to Figure 5A receiving groove 2015 is provided on a side surface of the first shell 201 facing away from the first connecting portion 101 , and the nut 302 is disposed in the receiving groove 2015 ; wherein the receiving groove 2015 is a contoured groove of the nut 302 .

[0053] By arranging the nut 302 in the receiving groove 2015, and the receiving groove 2015 is a profile groove of the nut 302, on the one hand, the design of the profile groove can fix the nut 302 in the receiving groove 2015, play a role of limiting and fixing the nut 302, and prevent the nut 302 from loosening due to shaking and collision during use. On the other hand, the nut 302 is arranged in the receiving groove 2015, which can provide certain protection and shielding for the nut 302, and can prevent the nut 302 from affecting other components inside the first shell 201 and the second shell 202.

[0054] Further, refer to Figure 1 and Figure 2 A sinking groove 1014 is provided at the first connecting hole 1013 , and a cover plate 103 is also provided on the connecting arm 100 , and the cover plate 103 is covered in the sinking groove 1014 .

[0055] By providing a sinking groove 1014 at the first connection hole 1013 and covering the sinking groove 1014 with a cover plate 103, the screw 301 provided at the first connection hole 1013 can be protected, and the influence of the outside on the screw 301 can be avoided, thereby improving the stability of the rotation connection between the connection arm 100 and the fixed module 200. On the other hand, providing the cover plate 103 can improve the integrity of the connection arm 100, making the appearance design of the connection arm 100 more beautiful.

[0056] Specifically, the cover plate 103 is provided so that the first connection hole 1013 can be conveniently opened and closed when needed. By removing or reinstalling the cover plate 103, the connection assembly 300 can be easily accessed for maintenance, replacement or adjustment.

[0057] refer to Figure 7 and 8 The fixed module 200 also includes a clamping assembly 400. A first avoidance groove 2033 is provided on the side of the fixed base 203 facing the second shell 202. A second avoidance groove 2021 is formed on the second shell 202. The clamping assembly 400 is arranged between the first avoidance groove 2033 and the second avoidance groove 2021. The clamping assembly 400 includes two clamping arms 402, wherein at least one clamping arm 402 can move away from the other clamping arm 402. The first shell 201 and the second shell 202 jointly form two avoidance holes 204. The clamping arms 402 pass through the avoidance holes 204 to clamp the electronic device to the fixed module 200.

[0058] The two clamping arms 402 of the clamping assembly 400 can clamp and fix the electronic device to the fixed module 200, ensuring the stability and safety of the electronic device on the clamping mechanism. The clamping force of the clamping arms 402 provides a stable fixing effect for the electronic device, ensuring that the electronic device can be firmly clamped on the fixed module 200 to prevent it from loosening or falling off. One of the stretchable clamping arms 402 can move different lengths relative to the other clamping arm 402 to accommodate electronic devices of different sizes and shapes, thereby providing better adjustability, so that the clamping device 1000 has the ability to be more flexible and suitable for a variety of application scenarios.

[0059] Specifically, the first avoidance groove 2033 and the second avoidance groove 2021 enable the clamping assembly 400 to be accommodated between the fixing seat 203 and the second housing 202. When the clamping arm 402 passes through the avoidance hole 204, it can avoid other components or structures to ensure smooth movement and position adjustment of the clamping assembly 400. This avoidance function can avoid interference between the clamping assembly 400 and other components, and improve the flexibility and safety of operation.

[0060] It should be noted that at least one of the two clamping arms 402 provided in the clamping assembly 400 is movable relative to the other clamping arm 402, for example, one clamping arm 402 is stretchable, and the other clamping arm 402 is fixed relative to the first shell 201 and the second shell 202. For another example, both clamping arms 402 are stretchable, which can provide a wider range of applications.

[0061] Further, refer to Figure 8 The clamping assembly 400 also includes a fixing portion 401, which is disposed between the first avoidance groove 2033 and the second avoidance groove 2021. The clamping arm 402 is disposed at opposite ends of the fixing portion 401. The clamping arm 402 includes an arm body 4021 and a clamping claw 4022 that are connected to each other. The arm body 4021 is connected to the fixing portion 401 through a second elastic member 403, and the clamping claw 4022 is disposed at the free end of the arm body 4021.

[0062] The clamping arm 402 enables it to clamp the electronic device on the fixed module 200, and the elastic force of the second elastic member 403 provides a stable clamping force for the clamping claw 4022. The arm body 4021 is connected to the fixed part 401 through the second elastic member 403. This elastic connection enables the clamping claw 4022 and the arm body 4021 to perform a certain elastic displacement relative to the fixed part 401 to adapt to electronic devices of different shapes and sizes. When the electronic device is removed, the clamping claw 4022 and the arm body 4021 can automatically return to their original positions, making the clamping process convenient and quick.

[0063] It should be noted that the free end of the arm body 4021 refers to an end of the arm body 4021 that is not constrained or restrained. In this embodiment, it refers to an end of the arm body 4021 that is away from the fixing portion 401 .

[0064] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. A clamping device, characterized in that: include: A connecting arm, wherein one end of the connecting arm has a first connecting portion, the first connecting portion is provided with a sliding groove, and a plurality of limiting grooves are provided in the sliding groove; A fixed module, wherein the fixed module is connected to the first connecting part via a connecting assembly so that the fixed module is rotatably connected to the first connecting part. A limiting ball corresponding to the sliding groove is provided on the side of the fixed module facing the sliding groove. The limiting ball elastically moves relative to the fixed module, and the moving direction is toward the positive direction of the first connecting part. The limiting ball cooperates with the limiting groove to limit the fixed module relative to the connecting arm.

2. The clamping device according to claim 1, characterized in that: The fixed module includes a first shell and a second shell connected to each other. The first shell is provided with a second connecting portion on a side facing the connecting arm. The second connecting portion is provided with a limiting hole. A first elastic member is also provided in the limiting hole so that when the limiting ball is accommodated in the limiting hole, it is partially exposed to one side of the sliding groove.

3. The clamping device according to claim 2, characterized in that: An extension platform is also provided on the first shell, the second connecting portion is provided on a side of the extension platform facing the connecting arm, a rotation groove is provided on the connecting arm facing the first shell, the first connecting portion is provided at the bottom of the rotation groove, and the extension platform is installed in the rotation groove.

4. The clamping device according to claim 2, characterized in that: The fixed module also includes a fixed seat, and the first elastic member is located between the fixed member and the limiting ball; at least two limiting openings are provided on the second connecting part, and a limiting buckle matching the limiting opening is provided on the side of the fixed seat facing the second connecting part, and the fixed seat is connected with the first shell by snapping.

5. The clamping device according to claim 4, characterized in that: The limiting buckle includes a supporting portion and a limiting portion, wherein the supporting portion is arranged on opposite sides of the fixing seat, the supporting portion is arranged and extends toward the first shell, and the end of the supporting portion toward the first shell is provided with a limiting portion protruding toward the outside of the fixing seat, and the limiting portion is provided with a guiding inclined surface.

6. The clamping device according to any one of claims 2 to 5, characterized in that: The connecting assembly also includes a screw and a nut. The first connecting part is provided with a first connecting hole, and the second connecting part is provided with a second connecting hole. The screw passes through the first connecting hole and the second connecting hole in sequence and is connected to the nut located on the side of the first shell facing the second shell.

7. The clamping device according to claim 6, characterized in that: A receiving groove is formed on a side surface of the first shell facing away from the first connecting portion, and the nut is arranged in the receiving groove; Wherein, the accommodating groove is a contoured groove of the nut.

8. The clamping device according to claim 7, characterized in that: A sinking groove is provided at the first connecting hole, and a cover plate is also provided on the connecting arm, and the cover plate is covered in the sinking groove.

9. The clamping device according to any one of claims 2 to 5, characterized in that: The fixed module also includes a clamping assembly, a first avoidance groove is provided on the side of the fixed base facing the second shell, a second avoidance groove is formed on the second shell, the clamping assembly is arranged between the first avoidance groove and the second avoidance groove, the clamping assembly includes two clamping arms, at least one of the clamping arms can move away from the other clamping arm, the first shell and the second shell jointly form two avoidance holes, and the clamping arms pass through the avoidance holes to clamp the electronic device to the fixed module.

10. The clamping device according to claim 9, characterized in that: The clamping assembly also includes a fixing portion, which is arranged between the first avoidance groove and the second avoidance groove. The clamping arm is arranged at the opposite ends of the fixing portion. The clamping arm includes an arm body and a clamping claw that are connected to each other. The arm body is connected to the fixing portion through a second elastic member, and the clamping claw is arranged at the free end of the arm body.

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