Handheld antistatic clamp

Abstract

The invention relates to the technical field of power module clamps, in particular to a handheld antistatic clamp which comprises a lifting rod, a pressing reset assembly and two sets of driven clamping assemblies. The lifting rod is sequentially divided into a pressing section, a connecting section and a meshing section from top to bottom; the pressing reset assembly is installed on the connecting section, the upper ends of the two driven clamping assemblies are connected with the meshing section in a meshed mode, and clamping blocks are detachably installed at the lower ends of the driven clamping assemblies. When external force acts on the pressing section, the lifting rod moves up and down in the pressing reset assembly, the two driven clamping assemblies and the meshing section move in a meshing mode, and the meshing movement is used for adjusting the clamping space between the clamping blocks on the two driven clamping assemblies. The device is mainly used for testing power modules in laboratories or small batches, so that the problem that the power modules are possibly polluted or damaged due to direct grabbing with hands and clamping with common tweezers is solved.

Description

Technical Field

[0001] The invention relates to the technical field of power module clamps, and in particular to a handheld antistatic clamp. Background Art

[0002] As semiconductor technology continues to advance, the design and manufacture of power modules have become increasingly sophisticated and complex. This development trend has led to a significant increase in the sensitivity of power modules to static electricity. Electrostatic discharge (ESD) may damage power modules, resulting in performance degradation or complete failure.

[0003] In a laboratory environment, when testing power modules, engineers or researchers may directly grab these power modules with their hands or tweezers due to the relatively small number. However, this practice is very risky. Because the human body and some daily tools (such as tweezers) may carry electrostatic charges, these charges may trigger ESD events when contacting the power module, thus damaging the power module and failing to ensure the accuracy and reliability of the test results.

[0004] In order to reduce this risk, the laboratory has taken a series of electrostatic protection measures. First, staff should wear special anti-static clothing and shoes to reduce the generation and accumulation of static electricity on the human body. Secondly, use hands or tweezers to grab while wearing an anti-static wristband. However, the following problems still exist: On the one hand, because hands secrete sweat, directly grabbing the power module may not only cause ESD events but also easily cause the power module to be contaminated, affecting the appearance and performance of the power module. On the other hand, it is not easy to use tweezers to grab and handle large power modules, which may easily cause the power module to fall and damage. Summary of the invention

[0005] The purpose of the present invention is to provide a handheld antistatic clamp, which is mainly used for laboratory or small batch power module testing to solve the problem that direct grasping by hand or clamping with general tweezers may cause contamination or damage to the power module.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A handheld antistatic clamp comprises a lifting rod, a pressing and resetting assembly and a driven clamping assembly, wherein the number of the driven clamping assemblies is two;

[0008] The lifting rod is divided into a pressing section, a connecting section and an engaging section from top to bottom;

[0009] The press-reset assembly is installed on the connecting section, the upper ends of the two groups of driven clamping assemblies are meshed and connected with the meshing section, and the lower ends of the driven clamping assemblies are detachably mounted with clamping blocks;

[0010] When external force acts on the pressing section, the lifting rod moves up and down in the pressing and resetting assembly, and the two groups of driven clamping assemblies engage and move with the engaging section, and the engaging movement is used to adjust the clamping space between the clamping blocks on the two groups of driven clamping assemblies.

[0011] Preferably, the push-reset assembly comprises a first connecting tube and a second connecting tube;

[0012] A first clamping portion is provided at the top of the first connecting tube extending inwardly; the lower section of the first connecting tube is detachably connected to the upper section of the second connecting tube;

[0013] A second clamping portion is protruding from the rod body of the lifting rod, and the second clamping portion is arranged at the connection between the pressing section and the connecting section;

[0014] The first connecting tube and the second connecting tube are sleeved on the rod body of the lifting rod, the first clamping portion is clamped with the second clamping portion, a receiving gap is formed between the first connecting tube and the rod body of the lifting rod, a compression spring is installed in the receiving gap, the compression spring is wound around the rod body of the lifting rod, one end of the compression spring abuts against the second clamping portion, and one end of the compression spring abuts against the top of the second connecting tube;

[0015] The bottom of the second connecting tube is fixedly connected to the upper ends of the two groups of driven clamping assemblies respectively.

[0016] Preferably, the bottom inner wall of the first connecting tube is provided with an internal thread, the top outer wall of the second connecting tube is provided with an external thread, and the first connecting tube and the second connecting tube are connected by the external thread and the internal thread.

[0017] Preferably, the driven clamping assembly comprises a clamping arm, a connecting arm and an extension arm;

[0018] The upper end of the clamping arm is meshedly connected with the meshing section, and the upper end of the clamping arm is fixedly connected with the bottom of the second connecting tube;

[0019] The lower end of the clamping arm is rotatably connected to the upper end of the connecting arm via an angle adjustment assembly;

[0020] The lower end of the connecting arm is sleeve-connected with the upper end of the extension arm;

[0021] A clamping block is detachably mounted on the lower end of the extension arm.

[0022] Preferably, a fan-shaped ring-shaped meshing tooth is fixedly provided on the upper end of the clamping arm, and a first mounting hole is opened in the center of the fan-shaped ring-shaped meshing tooth;

[0023] The meshing section is provided with a meshing rack, and the fan-shaped meshing teeth are meshed and connected with the meshing rack;

[0024] The second connecting tube has mounting grooves and second mounting holes on both sides. The second mounting holes are arranged close to the mounting grooves. The fan-shaped meshing teeth are rotatably mounted in the mounting grooves.

[0025] Preferably, the angle adjustment assembly comprises a connecting adjustment member and a first screw;

[0026] The connection adjustment member is a hollow cylindrical structure, a cylindrical cavity is formed inside the connection adjustment member, a first arc-shaped hole is formed on the arc-shaped surface of the connection adjustment member, and the cylindrical cavity and the first arc-shaped hole are connected;

[0027] The two circular end surfaces of the connecting and adjusting member are each provided with a third mounting hole and a second arc-shaped hole, the third mounting hole is located at the center of the circular end surface, and the second arc-shaped hole is arranged around the hinge hole;

[0028] A fourth mounting hole and a fifth mounting hole are formed at the lower end of the clamping arm;

[0029] The lower end of the clamping arm is penetrated by the first arc hole and installed in the cylindrical cavity, the third mounting hole corresponds to the fourth mounting hole and is hinged by a rotating shaft, and the first screw is detachably installed in the second arc hole and the fifth mounting hole.

[0030] Preferably, the connecting arm is provided with a plurality of first connecting holes, and the plurality of first connecting holes are arranged in a line along the length direction of the connecting arm;

[0031] A connecting installation groove is provided inside the extension arm along its length direction, and a second connecting hole is provided on the groove wall of the connecting installation groove. The extension arm is sleeved on the connecting arm through the connecting installation groove, and the second connecting hole corresponds to the first connecting hole and is fixed by a second screw.

[0032] Preferably, the clamping block comprises a clamping portion and two mounting portions symmetrically arranged on the clamping portion;

[0033] The mounting portion includes a first mounting sub-portion and a second mounting sub-portion connected in sequence, the first mounting sub-portion is square, a sixth mounting hole is provided on the first mounting sub-portion, and the second mounting sub-portion is fan-shaped, a plurality of adjustment holes arranged at equal intervals are provided on the second mounting sub-portion;

[0034] A seventh mounting hole and an eighth mounting hole are formed at the lower end of the extension arm;

[0035] The lower end of the extension arm is installed between the two mounting parts, and the eighth mounting hole is hinged to the sixth mounting hole through a rotating shaft;

[0036] The seventh mounting hole corresponds to one of the adjustment holes and is fixed by a third screw, and one of the adjustment holes is penetrated by a fourth screw.

[0037] Preferably, the pressing section is provided with a soft rubber pressing sleeve.

[0038] One of the above technical solutions has the following beneficial effects:

[0039] By applying an external force to the pressing section, the lifting rod is moved downward relative to the pressing and resetting assembly, and the two groups of the driven clamping assemblies are driven by the meshing gears on the bottom of the lifting rod, so that the clamping space between the clamping blocks at the bottom of the two groups of the driven clamping assemblies is increased. When the external pressing force acting on the pressing section is reduced, the lifting rod returns upward under the action of the pressing and resetting assembly, and the clamping space between the two clamping blocks is reduced. By repeatedly adjusting the external pressing force of the pressing section, the clamping space between the two clamping blocks is adjusted, so that the power module can be clamped with an appropriate pressing force, i.e., a clamping force, so that the two clamping blocks made of insulating materials press and fix the power module, which solves the problem that the power module may be contaminated or damaged by direct grasping by hand or clamping with general tweezers.

[0040] It is further explained that compared with the method of directly grabbing the power module with hands, the method of clamping the power module using the handheld anti-static clamp of the present invention can more safely grasp the power module, which can not only eliminate the damage to the power module caused by human static electricity, but also avoid contamination of the power module.

[0041] It is further explained that compared with the method of using general tweezers to grasp the power module, the method of using the handheld antistatic clamp of the present invention to clamp the module is more reliable and less likely to fall, thereby avoiding damage to the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of an initial state of a handheld antistatic clamp of the present invention;

[0043] Figure 2 It is a structural schematic diagram of a handheld antistatic clamp in an open state according to the present invention;

[0044] Figure 3 yes Figure 2 Schematic cross-sectional view of ;

[0045] Figure 4 It is a schematic diagram of the assembly of a lifting rod and a compression spring in a handheld antistatic clamp of the present invention;

[0046] Figure 5 It is a structural schematic diagram of a first connecting tube in a handheld antistatic clamp of the present invention;

[0047] Figure 6 It is a structural schematic diagram of a second connecting tube in a handheld antistatic clamp of the present invention;

[0048] Figure 7 It is a structural schematic diagram of a clamping arm in a handheld antistatic clamp of the present invention;

[0049] Figure 8 It is a schematic diagram of the assembly of a connecting arm and an angle adjustment component in a handheld antistatic clamp of the present invention;

[0050] Fig. 9 It is a structural schematic diagram of an extension arm in a handheld antistatic clamp of the present invention;

[0051] Fig.10 It is a structural schematic diagram of a clamping block in a handheld antistatic clamp of the present invention;

[0052] In the drawings: lifting rod 1, pressing section 11, connecting section 12, meshing section 13, second clamping portion 14, meshing rack 15, pressing reset assembly 2, first connecting cylinder 21, second connecting cylinder 22, mounting groove 221, second mounting hole 222, first clamping portion 23, compression spring 24, driven clamping assembly 3, clamping arm 31, fan ring meshing tooth 311, first mounting hole 312, fourth mounting hole 313, fifth mounting hole 314, connecting arm 32, first connecting hole 321, Extension arm 33, connecting mounting groove 331, second connecting hole 332, seventh mounting hole 322, eighth mounting hole 324, angle adjustment assembly 34, connecting adjustment member 341, first screw 342, cylindrical cavity 343, first arc-shaped hole 344, third mounting hole 345, second arc-shaped hole 346, clamping block 4, clamping portion 41, mounting portion 42, first mounting sub-portion 421, second mounting sub-portion 422, adjustment hole 423, sixth mounting hole 424, fourth screw 43. DETAILED DESCRIPTION

[0053] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0054] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] like Figure 1-10 As shown, a handheld antistatic clamp comprises a lifting rod 1, a pressing and resetting assembly 2 and a driven clamping assembly 3, and the number of the driven clamping assemblies 3 is two groups;

[0058] The lifting rod 1 is divided into a pressing section 11, a connecting section 12 and an engaging section 13 from top to bottom;

[0059] The pressing and resetting assembly 2 is installed on the connecting section 12, the upper ends of the two sets of the driven clamping assemblies 3 are meshed and connected with the meshing section 13, and the lower ends of the driven clamping assemblies 3 are detachably mounted with a clamping block 4;

[0060] When external force acts on the pressing section 11, the lifting rod 1 moves up and down in the pressing and resetting assembly 2, and the two groups of the driven clamping assemblies 3 engage and move with the engaging section 13, and the engaging movement is used to adjust the clamping space between the clamping blocks 4 on the two groups of the driven clamping assemblies 3.

[0061] It should be noted that the lifting rod 1, the press-reset component 2 and the driven clamping component 3 can be made of metal or plastic. When metal material is used, electrostatic protection can be provided by plating an antistatic layer on the surface or connecting an external safety grounding wire; the clamping block 4 is made of insulating plastic.

[0062] The present invention applies external force to the pressing section 11, so that the lifting rod 1 moves downward relative to the pressing and resetting assembly 2, and drives the two groups of the driven clamping assemblies 3 through the meshing gears on the bottom of the lifting rod 1, so that the clamping space between the clamping blocks 4 at the bottom of the two groups of the driven clamping assemblies 3 is increased. When the external pressing force acting on the pressing section 11 is reduced, the lifting rod 1 returns upward under the action of the pressing and resetting assembly 2, and the clamping space between the two clamping blocks 4 is reduced. By repeatedly adjusting the external pressing force of the pressing section 11, the clamping space between the two clamping blocks 4 is adjusted, so that the power module can be clamped with an appropriate pressing force, i.e., a clamping force, so that the two clamping blocks 4 made of insulating materials press and fix the power module, which solves the problem that the power module may be contaminated or damaged by direct grasping by hand or clamping with general tweezers.

[0063] It is further explained that compared with the method of directly grabbing the power module with hands, the method of clamping the power module using the handheld anti-static clamp of the present invention can more safely grasp the power module, which can not only eliminate the damage to the power module caused by human static electricity, but also avoid contamination of the power module.

[0064] It is further explained that compared with the method of using general tweezers to grasp the power module, the method of using the handheld antistatic clamp of the present invention to clamp the module is more reliable and less likely to fall, thereby avoiding damage to the module.

[0065] In summary, the present invention is light in weight, small in size, easy to carry and store, helpful for research and development testing, safer than conventional methods, better eliminates the influence of human body on testing, and is more practical when clamping large power modules.

[0066] To further illustrate, the push-reset assembly 2 includes a first connecting tube 21 and a second connecting tube 22;

[0067] A first clamping portion 23 is provided at the top of the first connecting tube 21 extending inwardly; the lower section of the first connecting tube 21 is detachably connected to the upper section of the second connecting tube 22;

[0068] A second clamping portion 14 is protruded from the rod body of the lifting rod 1, and the second clamping portion 14 is arranged at the connection between the pressing section 11 and the connecting section 12;

[0069] The first connecting tube 21 and the second connecting tube 22 are sleeved on the rod body of the lifting rod 1, the first clamping portion 23 is clamped with the second clamping portion 14, and a receiving gap is formed between the first connecting tube 21 and the rod body of the lifting rod 1. A compression spring 24 is installed in the receiving gap. The compression spring 24 is wound around the rod body of the lifting rod 1, and one end of the compression spring 24 abuts against the second clamping portion 14, and one end of the compression spring 24 abuts against the top of the second connecting tube 22;

[0070] The bottom of the second connecting tube 22 is fixedly connected to the upper ends of the two groups of driven clamping assemblies 3 respectively.

[0071] In this embodiment, by limiting the compression spring 24 between the first clamping portion 23 and the second clamping portion 14, when the lifting rod 1 moves in the first connecting tube 21 and the second connecting tube 22, the compression spring 24 will produce corresponding compression or tension deformation according to the position of the lifting rod 1. Due to the elastic effect of the compression spring 24, it will generate a reverse force on the lifting rod 1, thereby limiting the movement range of the lifting rod 1. In this way, by adjusting the stiffness and preload of the compression spring 24, the movement range and stability of the clamping space between the clamping blocks 4 on the two sets of the driven clamping assemblies 3 can be accurately controlled.

[0072] To further illustrate, the bottom inner wall of the first connecting tube 21 is provided with an internal thread, and the top outer wall of the second connecting tube 22 is provided with an external thread, and the first connecting tube 21 and the second connecting tube 22 are connected by the external thread and the internal thread. Since the threaded connection method can make the threads of the two components firmly bite, the effect of fixed connection is achieved. Moreover, compared with other connection methods, the threaded connection has the advantage of being easy to disassemble and having a lower manufacturing cost, which helps to save certain costs.

[0073] To further illustrate, the driven clamping assembly 3 includes a clamping arm 31, a connecting arm 32 and an extension arm 33;

[0074] The upper end of the clamping arm 31 is meshed and connected with the meshing section 13, and the upper end of the clamping arm 31 is fixedly connected with the bottom of the second connecting tube 22;

[0075] The lower end of the clamping arm 31 is rotatably connected to the upper end of the connecting arm 32 via an angle adjustment assembly 34;

[0076] The lower end of the connecting arm 32 is sleeve-connected with the upper end of the extension arm 33;

[0077] A clamping block 4 is detachably mounted on the lower end of the extension arm 33 .

[0078] In order to meet the requirements of clamping modules of all different sizes and shapes, firstly, by setting the angle adjustment component 34, it is convenient to adjust the connection angle between the clamping arm 31 and the connecting arm 32, so as to adjust the clamping space between the two clamping blocks 4 in the lateral direction. Secondly, by sleeve-connecting the connecting arm 32 and the extension arm 33, it is convenient to adjust the total length of the connecting arm 32 and the extension arm 33, so as to adjust the clamping space between the two clamping blocks 4 in the longitudinal direction. The above makes the breadth of the operating range of the handheld antistatic clamp improved.

[0079] To further illustrate, a fan-shaped ring-shaped meshing tooth 311 is fixedly provided at the upper end of the clamping arm 31, and a first mounting hole 312 is opened at the center of the fan-shaped ring-shaped meshing tooth 311;

[0080] The meshing section 13 is provided with a meshing rack 15, and the fan-shaped meshing teeth 311 are meshed and connected with the meshing rack 15;

[0081] The second connecting tube 22 has mounting grooves 221 and second mounting holes 222 formed on two sides thereof. The second mounting holes 222 are disposed close to the mounting grooves 221 . The fan-shaped meshing teeth 331 are rotatably mounted in the mounting grooves 221 .

[0082] Specifically, when the upper end of the clamping arm 31 is installed on the bottom of the second connecting tube 22, the mounting groove 221 is installed corresponding to the position of the meshing rack 15, the mounting groove 221 is used to accommodate the fan-shaped meshing tooth 331, and the first mounting hole 312 and the second mounting hole 222 are correspondingly provided with fasteners.

[0083] To further illustrate, the angle adjustment assembly 34 includes a connecting adjustment member 341 and a first screw 342;

[0084] The connection adjusting member 341 is a hollow cylindrical structure, a cylindrical cavity 343 is formed inside the connection adjusting member 341, a first arc-shaped hole 344 is formed on the arc-shaped surface of the connection adjusting member 341, and the cylindrical cavity 343 and the first arc-shaped hole 344 are connected;

[0085] The two circular end surfaces of the connecting adjusting member 341 are both provided with a third mounting hole 345 and a second arc-shaped hole 346, wherein the third mounting hole 345 is located at the center of the circular end surface, and the second arc-shaped hole 346 is arranged around the hinge hole;

[0086] The lower end of the clamping arm 31 is provided with a fourth mounting hole 313 and a fifth mounting hole 314;

[0087] The lower end of the clamping arm 31 is penetrated by the first arc hole 344 and mounted on the cylindrical cavity 343 . The third mounting hole 345 corresponds to the fourth mounting hole 313 and is hinged through a rotating shaft. The first screw 342 is detachably mounted on the second arc hole 346 and the fifth mounting hole 314 .

[0088] In this embodiment, the clamping arm 31 and the connecting arm 32 can be fixedly connected through the special design of the connection adjustment member 341. In addition, the second arc hole 346 and the butterfly screw are designed, so that the angle can be adjusted conveniently and quickly during installation, and the connection angle between the clamping arm 31 and the connecting arm 32 can be freely adjusted.

[0089] To further illustrate, the connecting arm 32 is provided with a plurality of first connecting holes 321 , and the plurality of first connecting holes 321 are arranged in a line along the length direction of the connecting arm 32 ;

[0090] A connecting installation groove 331 is opened inside the extension arm 33 along its length direction, and a second connecting hole 332 is opened on the groove wall of the connecting installation groove 331. The extension arm 33 is sleeved on the connecting arm 32 through the connecting installation groove 331, and the second connecting hole 332 corresponds to the first connecting hole 321 and is fixed by a second screw.

[0091] In this embodiment, by replacing different first connecting holes 321 on the connecting arm 32 and connecting with the second connecting holes 332 on the extension arm 33, the distance between the connecting arm 32 and the extension arm 33 can be changed, and the disassembly and adjustment convenience are good.

[0092] To further explain, the clamping block 4 includes a clamping portion 41 and two mounting portions 42 symmetrically arranged on the clamping portion 41;

[0093] The mounting portion 42 includes a first mounting sub-portion 421 and a second mounting sub-portion 422 connected in sequence, the first mounting sub-portion 421 is square, a sixth mounting hole 424 is provided on the first mounting sub-portion 421, and the second mounting sub-portion 422 is fan-shaped, a plurality of adjustment holes 423 arranged at equal intervals are provided on the second mounting sub-portion 422;

[0094] The lower end of the extension arm 33 is provided with a seventh mounting hole 333 and an eighth mounting hole 324;

[0095] The lower end of the extension arm 33 is installed between the two mounting portions 42, and the eighth mounting hole 324 is hinged with the sixth mounting hole 424 through a rotating shaft;

[0096] The seventh mounting hole 333 corresponds to one of the adjustment holes 423 and is fixed by a third screw, and a fourth screw 43 is passed through one of the adjustment holes 423 .

[0097] In this embodiment, through the special design of the clamping block 4, in order to facilitate the adjustment of the clamping angle, the mounting portion 42 on the clamping block 4 is designed as a square first mounting sub-portion 421 and a fan-shaped second mounting sub-portion 422, and a plurality of adjustment holes 423 arranged at equal intervals on the fan-shaped second mounting sub-portion 422 can make the clamping angle of the clamping block 4 more accurately adjusted, and it is operated by the fourth screw 43, which is simple and practical.

[0098] Further explanation, the pressing section 11 is provided with a soft rubber pressing sleeve. It should be noted that the soft rubber pressing sleeve is usually made of soft elastic material, such as silicone, rubber or other similar materials. This material has good elasticity and durability, and can withstand repeated pressing without being easily damaged. In addition, the soft rubber pressing sleeve can also be customized according to the shape and size of the pressing section 11 to ensure a perfect fit and provide the best pressing experience.

[0099] To further explain, the soft rubber pressing sleeve is used to provide the user with a more comfortable and soft pressing feeling, and can also increase the anti-slip property of the pressing section 11, ensuring that the user can perform the pressing operation steadily.

[0100] The specific working principle of the present invention is as follows: before use, the positions of the connecting arm 32, the extension arm 33 and the clamping block 4 can be adjusted in advance so that the two clamping blocks 4 can have a suitable opening angle to clamp the module to be clamped.

[0101] When in use, hold the outer wall of the first connecting tube 21 with the palm of the hand, and press the protruding pressing section 11 on the top of the lifting rod 1 with the thumb, so that the lifting rod 1 moves downward relative to the first connecting tube 21 and the second connecting tube 22, and the two connecting arms 32 are stretched open by the gear meshing on the rack at the bottom of the lifting rod 1, so that the clamping space between the clamping blocks 4 at the bottom of the two extension arms 33 is increased. When the pressing force of the thumb is reduced, under the action of the compression spring 24, the lifting rod 1 returns upward, driving the two clamping arms 31 to contract, and the clamping space between the two clamping blocks 4 is reduced. By repeatedly adjusting the pressing force of the thumb, the clamping space between the two clamping blocks 4 is adjusted, so that the module can be clamped with an appropriate pressing force, i.e., a clamping force, which solves the problem that the module may be contaminated or damaged by direct grasping with hands or clamping with general tweezers.

[0102] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific embodiments of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A handheld antistatic clamp, characterized in that: It comprises a lifting rod (1), a pressing and resetting assembly (2) and a driven clamping assembly (3), and the number of the driven clamping assemblies (3) is two groups; The lifting rod (1) is divided into a pressing section (11), a connecting section (12) and an engaging section (13) from top to bottom; The pressing and resetting assembly (2) is mounted on the connecting section (12), the upper ends of the two groups of driven clamping assemblies (3) are meshed and connected with the meshing section (13), and the lower ends of the driven clamping assemblies (3) are detachably mounted with clamping blocks (4); When an external force acts on the pressing section (11), the lifting rod (1) moves up and down in the pressing and resetting assembly (2), and the two groups of driven clamping assemblies (3) engage and move with the engaging section (13), and the engaging movement is used to adjust the clamping space between the clamping blocks (4) on the two groups of driven clamping assemblies (3).

2. A handheld antistatic clamp according to claim 1, characterized in that: The push-reset assembly (2) comprises a first connecting tube (21) and a second connecting tube (22); A first clamping portion (23) is provided at the top of the first connecting tube (21) extending inwardly; the lower section of the first connecting tube (21) is detachably connected to the upper section of the second connecting tube (22); A second clamping portion (14) is protruding from the rod body of the lifting rod (1), and the second clamping portion (14) is arranged at the connection between the pressing section (11) and the connecting section (12); The first connecting tube (21) and the second connecting tube (22) are sleeved on the rod body of the lifting rod (1); the first clamping portion (23) and the second clamping portion (14) are clamped together; a receiving gap is formed between the first connecting tube (21) and the rod body of the lifting rod (1); a compression spring (24) is installed in the receiving gap; the compression spring (24) is wound around the rod body of the lifting rod (1); one end of the compression spring (24) abuts against the second clamping portion (14); and one end of the compression spring (24) abuts against the top of the second connecting tube (22); The bottom of the second connecting tube (22) is fixedly connected to the upper ends of the two groups of driven clamping assemblies (3) respectively.

3. A handheld antistatic clamp according to claim 2, characterized in that: The bottom inner wall of the first connecting tube (21) is provided with an internal thread, and the top outer wall of the second connecting tube (22) is provided with an external thread. The first connecting tube (21) and the second connecting tube (22) are connected by the external thread and the internal thread.

4. A handheld antistatic clamp according to claim 2, characterized in that: The driven clamping assembly (3) comprises a clamping arm (31), a connecting arm (32) and an extension arm (33); The upper end of the clamping arm (31) is meshedly connected to the meshing section (13), and the upper end of the clamping arm (31) is fixedly connected to the bottom of the second connecting tube (22); The lower end of the clamping arm (31) is rotatably connected to the upper end of the connecting arm (32) via an angle adjustment assembly (34); The lower end of the connecting arm (32) is sleeve-connected with the upper end of the extension arm (33); A clamping block (4) is detachably mounted on the lower end of the extension arm (33).

5. A handheld antistatic clamp according to claim 4, characterized in that: A fan-shaped meshing tooth (311) is fixedly provided at the upper end of the clamping arm (31), and a first mounting hole (312) is opened at the center of the fan-shaped meshing tooth (311); The meshing section (13) is provided with a meshing rack (15), and the fan-shaped meshing teeth (311) are meshingly connected with the meshing rack (15); The second connecting tube (22) is provided with a mounting groove (221) and a second mounting hole (222) on both sides. The second mounting hole (222) is arranged close to the mounting groove (221). The fan-shaped meshing tooth (331) is rotatably mounted in the mounting groove (221).

6. A handheld antistatic clamp according to claim 5, characterized in that: The angle adjustment assembly (34) comprises a connection adjustment member (341) and a first screw (342); The connection adjustment member (341) is in a hollow cylindrical structure, a cylindrical cavity (343) is provided inside the connection adjustment member (341), a first arc-shaped hole (344) is provided on the arc-shaped surface of the connection adjustment member (341), and the cylindrical cavity (343) and the first arc-shaped hole (344) are in communication; The two circular end surfaces of the connection adjustment member (341) are both provided with a third mounting hole (345) and a second arc-shaped hole (346), the third mounting hole (345) is located at the center of the circular end surface, and the second arc-shaped hole (346) is arranged around the hinge hole; A fourth mounting hole (313) and a fifth mounting hole (314) are formed at the lower end of the clamping arm (31); The lower end of the clamping arm (31) is provided with the first arc-shaped hole (344) for installation in the cylindrical cavity (343); the third installation hole (345) corresponds to the fourth installation hole (313) and is hinged via a rotating shaft; the first screw (342) is detachably installed in the second arc-shaped hole (346) and the fifth installation hole (314).

7. A handheld antistatic clamp according to claim 6, characterized in that: The connecting arm (32) is provided with a plurality of first connecting holes (321), and the plurality of first connecting holes (321) are arranged in a line along the length direction of the connecting arm (32); The extension arm (33) is provided with a connection installation groove (331) along its length direction, and the groove wall of the connection installation groove (331) is provided with a second connection hole (332). The extension arm (33) is sleeved on the connection arm (32) through the connection installation groove (331), and the second connection hole (332) corresponds to the first connection hole (321) and is fixed by a second screw.

8. A handheld antistatic clamp according to claim 7, characterized in that: The clamping block (4) comprises a clamping portion (41) and two mounting portions (42) symmetrically arranged on the clamping portion (41); The mounting portion (42) comprises a first mounting sub-portion (421) and a second mounting sub-portion (422) which are connected in sequence, the first mounting sub-portion (421) is square, a sixth mounting hole (424) is provided on the first mounting sub-portion (421), the second mounting sub-portion (422) is fan-shaped, and a plurality of adjustment holes (423) are provided on the second mounting sub-portion (422) which are arranged at equal intervals; The lower end of the extension arm (33) is provided with a seventh mounting hole (333) and an eighth mounting hole (324); The lower end of the extension arm (33) is installed between the two mounting portions (42), and the eighth mounting hole (324) and the sixth mounting hole (424) are hingedly connected via a rotating shaft; The seventh mounting hole (333) corresponds to one of the adjustment holes (423) and is fixed by a third screw, and one of the adjustment holes (423) is penetrated by a fourth screw (43).

9. The handheld antistatic clamp according to claim 1, characterized in that: The pressing section (11) is provided with a soft rubber pressing sleeve.

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