CN212230759U

CN212230759U - Novel insulating cable clamp

Info

Publication number: CN212230759U
Application number: CN202020756904.8U
Authority: CN
Inventors: 袁理; 田野; 陈艳
Original assignee: Deyang City Jianan Machine Manufacture Co ltd
Current assignee: Deyang City Jianan Machine Manufacture Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-25
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses a novel insulating wire clamp, which relates to the field of wire clamps and comprises a first wire clamp head and a second wire clamp head which are arranged in parallel and oppositely, wherein one end of the first wire clamp head and one end of the second wire clamp head are respectively connected with a first wire clamp handle and a second wire clamp handle, one end of the first wire clamp handle is intersected with one end of the second wire clamp handle and movably connected through a pin shaft, the first wire clamp head and the second wire clamp head are respectively and oppositely provided with a first wire stripping notch and a second wire stripping notch, the first wire stripping notch is provided with a first wire stripping blade, and the second wire stripping notch is provided with a movable wire stripping mechanism; one end of the guide rod of the movable wire stripping mechanism is fixed with one end of the wire stripping cutter head, the other end of the wire stripping cutter head is provided with a second wire stripping blade matched with the first wire stripping blade, the other end of the guide rod is movably arranged on a notch of the second wire stripping blade, and the outer wall of the guide rod is provided with a first spring. The wire clamp has the advantages that the wire damage to the wire stripping is small, the wire clamp can adapt to wires of various different models, and the working efficiency is greatly improved.

Description

Novel insulating cable clamp

Technical Field

The utility model relates to an electric wire clamp field specifically is a novel insulating fastener.

Background

In the electrician trade, often can use this kind of instrument of insulating fastener, not only small and exquisite practicality, portable receives liking of trade personage deeply moreover. In the existing insulated wire clamp, when the wire clamp is used for stripping wires, the wire stripping port is easy to damage the wires, and the lapping is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a novel insulating cable clamp, this fastener has the electric wire damage little to the wire stripping, and can adapt to the electric wire of multiple different models, has improved the efficiency of work greatly.

The purpose of the utility model is realized through the following technical scheme:

a novel insulating wire clamp comprises a first wire clamp head and a second wire clamp head which are oppositely arranged in parallel, wherein one end of the first wire clamp head is connected with a first wire clamp handle which is arranged in an arc shape, one end of the second wire clamp head is connected with a second wire clamp handle which is arranged in an arc shape, one end, close to the first wire clamp head, of the first wire clamp handle and one end, close to the second wire clamp head, of the second wire clamp handle are intersected and movably connected through a pin shaft, a first wire stripping notch is formed in one side, close to the second wire clamp head, of the first wire clamp head, a first wire stripping blade for stripping wires is arranged on the first wire stripping notch, a second wire stripping notch matched with the first wire stripping notch is formed in one side, close to the first wire clamp head, of the second wire clamp head, and a movable wire stripping mechanism is arranged on the second wire stripping; the movable wire stripping mechanism comprises a wire stripping guide rod, a first spring and a wire stripping cutter head, one end of the guide rod is fixed with one end of the wire stripping cutter head, a second wire stripping blade matched with the first wire stripping blade is arranged at the other end of the wire stripping cutter head, the other end of the guide rod is movably arranged on a notch of the second wire stripping groove, and the outer wall of the guide rod is provided with the first spring for stretching.

Specifically, the second wire stripping notch is provided with a first guide hole matched with the guide rod, one end of the guide rod is movably arranged in the first guide hole, one end of the first spring is connected with the wire stripping cutter head, and the other end of the first spring is connected with the inner wall of the top of the first guide hole.

Specifically, the first wire stripping notch is arranged in the middle of the first wire clamp, the second wire stripping notch is arranged in the middle of the second wire clamp, and the first wire stripping notch and the second wire stripping notch are arranged oppositely.

Specifically, one side of the first wire clamp head, which is close to the second wire clamp head, and one end, which is far away from the first wire clamp handle, of the first wire clamp head are provided with continuous saw-toothed protrusions for increasing friction, and the other end, which is close to the second wire clamp head, of the first wire clamp head is provided with a first wire cutting knife groove for cutting wires; the wire clamp comprises a first wire clamp handle and a second wire clamp handle, wherein the first wire clamp handle is arranged on the first wire clamp handle, the second wire clamp handle is arranged on one side close to the first wire clamp, a continuous sawtooth-shaped bulge used for increasing friction is also arranged at one end far away from the second wire clamp handle, and a second wire cutting knife groove matched with the first wire cutting knife groove is arranged at the other end of one side of the second wire clamp close to the first wire clamp.

Specifically, a second spring is arranged between the first wire clamp and the second wire clamp, a fixed rod is arranged on one side, close to the second wire clamp, of the first wire clamp, the fixed rod is arranged between the first wire stripping notch and the first wire cutting knife groove, and the second spring is arranged on the fixed rod in a penetrating mode.

Specifically, one side of the second line chuck, which is close to the first line chuck, is provided with a second guide hole matched with the fixed rod, one end of the second spring is connected with the first line chuck, the other end of the second spring is connected with the inner wall of the top of the second guide hole, and one end of the fixed rod extends into the second guide hole and is in movable contact with the inner wall of the second guide hole.

Specifically, first fastener handle with it is equipped with the plastics cover that is used for the insulation to overlap respectively on the second fastener handle, first fastener handle with be equipped with the third spring between the second fastener handle, first fastener handle is close to one side of first chuck is equipped with first protruding axle, second fastener handle is close to one side of second chuck is equipped with the protruding axle of second, the one end of first protruding axle is arranged in the third spring, and the one end of third spring with the one end of first protruding axle links to each other, the one end of the protruding axle of second is also arranged in the third spring, just the other end of third spring with the one end of the protruding axle of second links to each other.

The utility model has the advantages that:

1. the wire clamp comprises a first wire clamp handle and a second wire clamp handle, wherein the first wire clamp handle and the second wire clamp handle are arranged in an arc-shaped intersecting manner and movably connected through a pin shaft; a first wire stripping notch is formed in one side, close to the second wire clamp, of the first wire clamp, a first wire stripping blade is arranged on the first wire stripping notch, a second wire stripping notch matched with the first wire stripping notch is formed in one side, close to the first wire clamp, of the second wire clamp, a movable wire stripping mechanism is arranged on the second wire stripping notch, one end of a guide rod of the wire stripping mechanism is fixed with one end of a wire stripping cutter head, a second wire stripping blade matched with the first wire stripping blade is arranged at the other end of the wire stripping cutter head, when the first wire clamp and the second wire clamp are forced to be close to each other, the second wire stripping blade on the wire stripping cutter head is matched with the first wire stripping blade to clamp the electric wire between the second wire stripping blade and the first wire stripping blade, then a handle of the first wire clamp and a handle of the second wire clamp are held to enable the second wire stripping blade and the first wire stripping blade to rotate around the clamped electric wire for a circle, just so cut an annular incision to the outsourcing line of electric wire, simultaneously because the outer wall of guide bar is equipped with the first spring that is used for flexible, can give a buffering for the electric wire of centre gripping, can reduce and when and the electric wire outsourcing line, the blade is to the damage of the electric conductor in the electric wire, can make two electric wires overlap better electrically conductive after the overlap joint, and because mobilizable the setting on second wire stripping notch of one end of guide bar, so can come to adjust the distance of second wire stripping blade and first wire stripping blade through the length of extrusion guide bar, and then can grasp the electric wire of different models, with this purpose that reduces the change of instrument, improve the efficiency of work.

2. The second wire stripping notch is provided with a first guide hole matched with the guide rod, and the guide rod can be movably arranged in the first guide hole, so that when the diameter of a wire clamped in the second wire stripping blade and the first wire stripping blade is larger, the guide rod can move along the first guide hole under the deformation compression of the first spring, so that the second wire stripping blade on the wire stripping cutter head can slightly clamp the wire, and the damage to a conductor in the wire is avoided when the wire is stripped in a rotating manner; the first wire stripping notch and the second wire stripping notch are oppositely arranged so as to better clamp the electric wire; the one end of one side of first line chuck and second line chuck is equipped with the arch respectively relatively respectively to frictional force when so as to be able to pass through the increase centre gripping can be better the centre gripping electric wire, be convenient for get rid of the electric wire outsourcing line at incision end, and the other end of first line chuck and second line chuck with one side is equipped with first trimming sword groove and second trimming sword groove respectively, so that can cut the electric wire as required, in order to do other uses.

3. A fixed rod is arranged on one side, close to the second wire clamp, of the first wire clamp, the fixed rod is arranged between the first wire stripping notch and the first wire cutting knife groove, and the second spring penetrates through the fixed rod, so that the fixed rod can return to the initial position when the second spring restores to deform; a second guide hole matched with the fixed rod is formed in one side, close to the first wire chuck, of the second wire chuck, one end of the fixed rod extends into the second guide hole and is in movable contact with the inner wall of the second guide hole, so that the fixed rod can move along the second guide hole, the second guide hole can guide the fixed rod, and meanwhile, the fixed rod is movably arranged in the second guide hole, so that the first wire chuck and the second wire chuck can be prevented from being dislocated and deviated when stressed and the use of the first wire chuck and the second wire chuck is influenced; the first wire clamp handle and the second wire clamp handle are respectively sleeved with a plastic sleeve for insulation, so that electric shock can be prevented when the wire clamp is used; first fastener handle with be equipped with the third spring between the second fastener handle, and the one end of third spring links to each other with the one end of the first protruding axle of first fastener handle, and the other end links to each other with the one end of the second protruding axle of second fastener handle, and aim at is after the use, and the third spring can let first fastener handle and second fastener handle in the in-process that the spring resumes deformation, lets them get back to initial position separately, saves strength, is convenient for use next time.

Drawings

Fig. 1 is a schematic structural view of a novel insulating wire clamp of the present invention;

fig. 2 is a schematic view of a movable wire stripping mechanism of the novel insulating wire clamp of the present invention;

fig. 3 is a schematic view of the connection between the guide rod and the second spring of the novel insulating wire clamp of the present invention;

in the figure, 11-a first wire clamp head, 12-a first wire clamp handle, 13-a first wire stripping notch, 14-a first wire cutting groove, 21-a second wire clamp head, 22-a second wire clamp handle, 23-a second wire stripping notch, 24-a second wire cutting groove, 31-a guide rod, 32-a first spring, 33-a wire stripping cutter head, 41-a second spring, 42-a fixed rod and 51-a third spring.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1 to 3, a novel insulating wire clamp includes a first wire clamp 11 and a second wire clamp 21 which are arranged in parallel and oppositely, one end of the first wire clamp 11 is connected with a first wire clamp handle 12 which is arranged in an arc shape, one end of the second wire clamp 21 is connected with a second wire clamp handle 22 which is arranged in an arc shape, one end of the first wire clamp handle 12 close to the first wire clamp 11 and one end of the second wire clamp handle 22 close to the second wire clamp 21 are intersected and movably connected through a pin shaft, a first wire stripping notch 13 is formed in one side of the first wire clamp 11 close to the second wire clamp 21, a first wire stripping blade for stripping is arranged on the first wire stripping notch 13, a second wire stripping notch 23 which is matched with the first wire stripping notch 13 is formed in one side of the second wire clamp 21 close to the first wire clamp 11, and a movable wire stripping mechanism is arranged on the second wire stripping notch 23; the movable wire stripping mechanism comprises a wire stripping guide rod 31, a first spring 32 and a wire stripping cutter disc 33, one end of the guide rod 31 is fixed with one end of the wire stripping cutter disc 33, a second wire stripping blade matched with the first wire stripping blade is arranged at the other end of the wire stripping cutter disc 33, the other end of the guide rod 31 is movably arranged on the second wire stripping notch 23, and the outer wall of the guide rod 31 is provided with the first spring 32 for stretching. The wire clamp comprises a first wire clamp head 11 and a second wire clamp head 21 which are oppositely arranged in parallel and used for clamping wires needing to be stripped and connected, wherein one end of the first wire clamp head 11 and one end of the second wire clamp head 21 are respectively connected with a first wire clamp handle 12 and a second wire clamp handle 22 which are arranged in an arc-shaped intersecting manner and movably connected through a pin shaft, the first wire clamp handle 12 and the second wire clamp handle 22 are held to be stressed respectively, force is transmitted to the first wire clamp head 11 and the second wire clamp head 21 through the lever principle, so that the wires can be clamped, and the labor-saving effect is achieved; a first wire stripping notch 13 is formed in one side, close to a second wire clamping head 21, of a first wire clamping head 11, a first wire stripping blade is arranged on the first wire stripping notch 13, a second wire stripping notch 23 matched with the first wire stripping notch 13 is formed in one side, close to the first wire clamping head 12, of a second wire clamping head 22, a movable wire stripping mechanism is arranged on the second wire stripping notch 23, one end of a guide rod 31 of the wire stripping mechanism is fixed with one end of a wire stripping cutter 33, a second wire stripping blade matched with the first wire stripping blade is arranged at the other end of the wire stripping cutter 33, when the first wire clamping head 11 and the second wire clamping head 21 are stressed to be close to each other, the second wire stripping blade on the wire stripping cutter 33 is matched with the first wire stripping blade to clamp the electric wire between the second wire stripping blade and the first wire stripping blade, then the first wire clamping handle 12 and the second wire clamping handle 22 are held to enable the second wire stripping blade and the first wire stripping blade to rotate around the electric wire clamped by the wire stripping blade, therefore, an annular notch is cut on the outer covering wire of the electric wire, meanwhile, the first spring 32 for stretching is arranged on the outer wall of the guide rod 31, the clamped electric wire can be buffered, the damage of the blade to the electric conductor in the electric wire can be reduced when the electric wire is covered, better electric conduction can be achieved after the two electric wires are lapped, and the guide rod 31 can be movably arranged at one end of the second wire stripping notch 23, so that the distance between the second wire stripping blade and the first wire stripping blade can be adjusted by extruding the length of the guide rod 31, the electric wires of different models can be clamped, the purpose of tool replacement is reduced, and the working efficiency is improved.

Furthermore, a first guide hole matched with the guide rod 31 is formed in the second wire stripping notch 23, one end of the guide rod 31 is movably arranged in the first guide hole, one end of the first spring 32 is connected with the wire stripping cutter head 33, and the other end of the first spring 32 is connected with the inner wall of the top of the first guide hole, so that when the diameter of the electric wire clamped in the second wire stripping blade and the first wire stripping blade is larger, the guide rod 31 can move along the first guide hole under the deformation and compression of the first spring 32, and the second wire stripping blade on the wire stripping cutter head 33 can slightly clamp the electric wire, so that the electric conductor in the electric wire is prevented from being damaged when the wire is stripped in a rotating manner; the first wire stripping notch 13 is arranged in the middle of the first wire clamp 11, the second wire stripping notch 23 is arranged in the middle of the second wire clamp 21, so that other structures are reserved at two ends, the functions of the first wire stripping notch are increased, and the first wire stripping notch 13 and the second wire stripping notch 23 are oppositely arranged, so that the electric wire can be better clamped; one side of the first wire clamp 11 close to the second wire clamp 21 and one end far away from the first wire clamp handle 12 are provided with continuous saw-toothed protrusions for increasing friction, and the other end of one side of the first wire clamp 11 close to the second wire clamp 21 is provided with a first wire cutting knife slot 14 for cutting wires; second line chuck 21 is close to one side of first line chuck 11 to frictional force when so as to be able to pass through the increase centre gripping, the centre gripping electric wire that can be better, be convenient for get rid of the electric wire outsourcing line of incision end, and the one end of keeping away from second line chuck handle 22 also is equipped with the arch that is used for increasing friction of continuous cockscomb structure, the other end that second line chuck 21 is close to one side of first line chuck 11 is equipped with the second trimming sword groove 24 with first trimming sword groove 14 looks adaptation, so that can cut the electric wire as required, in order to do other uses.

Further, a second spring 41 is arranged between the first wire clamp 11 and the second wire clamp 21, a fixing rod 42 is arranged on one side of the first wire clamp 11 close to the second wire clamp 21, the fixing rod 42 is arranged between the first wire stripping notch 13 and the first wire cutting knife slot 14, and the second spring 41 is arranged on the fixing rod 42 in a penetrating mode, so that the fixing rod 42 can return to an initial position when the second spring 41 is deformed; a second guide hole matched with the fixing rod 42 is formed in one side, close to the first wire chuck 11, of the second wire chuck 21, one end of the second spring 41 is connected with the first wire chuck 11, the other end of the second spring 41 is connected with the inner wall of the top of the second guide hole, so that the fixing rod 42 can move in the second guide hole, the second guide hole can guide the fixing rod 42, one end of the fixing rod 42 extends into the second guide hole and is in movable contact with the inner wall of the second guide hole, and the first wire chuck 11 and the second wire chuck 21 can be prevented from being dislocated and deviated when stressed and affecting use; the first wire clamp handle 12 and the second wire clamp handle 22 are respectively sleeved with a plastic sleeve for insulation, so that electric shock can be prevented when the wire clamp is used; a third spring 51 is arranged between the first wire clamp handle 12 and the second wire clamp handle 22, a first convex shaft is arranged on one side of the first wire clamp handle 12 close to the first wire clamp 11, a second convex shaft is arranged on one side of the second wire clamp handle 22 close to the second wire clamp 21, one end of the first convex shaft is arranged in the third spring 51, one end of the third spring 51 is connected with one end of the first convex shaft, one end of the second convex shaft is also arranged in the third spring 51, and the other end of the third spring 51 is connected with one end of the second convex shaft.

When the wire clamp is in actual use, an electric wire to be stripped is placed in a gap between the first wire stripping notch 13 and the wire stripping cutter disc 33, the first wire clamp handle 12 and the second wire clamp handle 22 are simultaneously held by hands and are relatively close to each other by force, the force is transmitted to the first wire clamp 11 and the second wire clamp 21 through the lever principle, the first wire clamp 11 and the second wire clamp 21 are relatively close to each other, the first wire stripping notch 13 and the wire stripping cutter disc 33 gradually clamp the electric wire, after the electric wire is clamped, the first wire clamp handle 12 and the second wire clamp handle 22 are held by the force at the moment, the wire clamp is rotated, meanwhile, the first wire stripping blade and the second wire stripping blade rotate around the electric wire for one turn along with the first wire stripping blade, because the other end of the guide rod 31 connected with the wire stripping cutter disc 33 can move in the first guide hole formed in the second wire stripping cutter disc 23, and under the action of the first spring 32, the second wire stripping knife slot 23 has a buffering effect, so that the second wire stripping blade arranged on the second wire stripping knife slot 23 can reduce the damage of the first wire stripping blade and the second wire stripping knife to the electric conductor in the electric wire when the first wire stripping blade and the second wire stripping knife rotate to cut the electric wire; cutting an annular notch on the outer covered wire at the position where the electric wire is clamped, loosening the first wire clamp handle 12 and the second wire clamp handle 22, enabling the first wire clamp handle 12 and the second wire clamp handle 22 to return to the initial positions when the third spring 51 and the second spring 41 recover to be deformed simultaneously, then placing one end of the electric wire notch on the protrusions respectively arranged on the first wire clamp 11 and the second wire clamp 21, similarly holding the first wire clamp handle 12 and the second wire clamp handle 22, enabling the protrusions respectively arranged on the first wire clamp 11 and the second wire clamp 21 to clamp one end of the electric wire head notch, forcibly pulling outwards to remove the outer covered wire at the notch end of the electric wire and leave the electric conductor in the electric wire, then simultaneously loosening the first wire clamp handle 12 and the second wire clamp handle 22, then placing the part of one end of the electric conductor needing to be trimmed into the gap between the first wire trimming cutter groove 14 and the second wire trimming cutter groove 24, the fixing rod 42 moves in the second guide hole, the second guide hole provides a guide function for the fixing rod 42, the first wire clamp 11 and the second wire clamp 21 can be prevented from being dislocated and deviated when stressed, the first wire clamp handle 12 and the second wire clamp handle 22 are held, the first wire cutting knife groove 14 and the second wire cutting knife groove 24 are made to be close to each other, unnecessary electric conductors are cut off, then the cut electric conductors are connected, and two electric wires can be connected by winding an electric adhesive tape. The wire clamp has the advantages that the wire damage to the wire stripping is small, the wire clamp can adapt to wires of various different models, and the working efficiency is greatly improved.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A novel insulating wire clamp is characterized by comprising a first wire clamp (11) and a second wire clamp (21) which are oppositely arranged in parallel, wherein one end of the first wire clamp (11) is connected with a first wire clamp handle (12) which is arranged in an arc shape, one end of the second wire clamp (21) is connected with a second wire clamp handle (22) which is arranged in an arc shape, one end of the first wire clamp handle (12) close to the first wire clamp (11) and one end of the second wire clamp handle (22) close to the second wire clamp (21) are crossed and movably connected through a pin shaft, one side of the first wire clamp (11) close to the second wire clamp (21) is provided with a first wire stripping notch (13), a first wire stripping blade for stripping is arranged on the first wire stripping notch (13), one side of the second wire clamp (21) close to the first wire clamp (11) is provided with a second wire stripping notch (23) which is matched with the first wire stripping notch (13), a movable wire stripping mechanism is arranged on the second wire stripping notch (23);

the movable wire stripping mechanism comprises a wire stripping guide rod (31), a first spring (32) and a wire stripping cutter head (33), one end of the guide rod (31) is fixed with one end of the wire stripping cutter head (33), a second wire stripping blade matched with the first wire stripping blade is arranged at the other end of the wire stripping cutter head (33), the other end of the guide rod (31) is movably arranged on the second wire stripping notch (23), and the outer wall of the guide rod (31) is provided with the first spring (32) for stretching.

2. The novel insulation wire clamp according to claim 1, wherein the second wire stripping notch (23) is provided with a first guide hole matched with the guide rod (31), one end of the guide rod (31) is movably arranged in the first guide hole, one end of the first spring (32) is connected with the wire stripping cutter head (33), and the other end of the first spring (32) is connected with the inner wall of the top of the first guide hole.

3. The novel insulation clamp as claimed in claim 1, wherein the first wire stripping notch (13) is arranged in the middle of the first wire clamp head (11), the second wire stripping notch (23) is arranged in the middle of the second wire clamp head (21), and the first wire stripping notch (13) and the second wire stripping notch (23) are arranged oppositely.

4. A novel insulating wire clamp as claimed in claim 1, characterized in that the first wire clamp (11) is provided with a continuous saw-toothed protrusion for increasing friction at one side close to the second wire clamp (21) and at the end far from the first wire clamp handle (12), and the other end of the first wire clamp (11) at one side close to the second wire clamp (21) is provided with a first wire cutting groove (14) for cutting wires; the wire clip comprises a first wire clip handle (22), a second wire clip head (21), a first wire clip head (11), a second wire clip head (21), a second wire clip head (14), a first wire clip head handle (22), a second wire clip head (24) and a third wire clip head handle (21), wherein the first wire clip head (11) is arranged on the first wire clip head, the second wire clip head (21) is close to one side of the first wire clip head (11), one end of the second wire clip head (22) is also provided with continuous saw-toothed protrusions.

5. The novel insulation clamp as claimed in claim 4, wherein a second spring (41) is arranged between the first wire clamp head (11) and the second wire clamp head (21), a fixing rod (42) is arranged on one side of the first wire clamp head (11) close to the second wire clamp head (21), the fixing rod (42) is arranged between the first wire stripping notch (13) and the first wire cutting knife groove (14), and the second spring (41) is arranged on the fixing rod (42) in a penetrating manner.

6. The novel insulating wire clamp as claimed in claim 5, wherein a second guide hole matched with the fixing rod (42) is formed in one side, close to the first wire clamp (11), of the second wire clamp (21), one end of the second spring (41) is connected with the first wire clamp (11), the other end of the second spring (41) is connected with the inner wall of the top of the second guide hole, and one end of the fixing rod (42) extends into the second guide hole and is in movable contact with the inner wall of the second guide hole.

7. The novel insulated wire clamp of claim 1, wherein the first clamp handle (12) and the second clamp handle (22) are respectively sleeved with plastic sleeves for insulation, a third spring (51) is arranged between the first wire clamp handle (12) and the second wire clamp handle (22), a first convex shaft is arranged on one side of the first wire clamp handle (12) close to the first wire clamp head (11), a second convex shaft is arranged on one side of the second wire clamp handle (22) close to the second wire clamp head (21), one end of the first convex shaft is arranged in the third spring (51), one end of a third spring (51) is connected with one end of the first convex shaft, one end of the second convex shaft is also arranged in the third spring (51), and the other end of the third spring (51) is connected with one end of the second protruding shaft.