Wire-strippable electrician knife with replaceable head

Abstract

The utility model relates to the technical field of electrical engineering, and particularly discloses a head-replaceable and wire-strippable electrician knife which comprises a handle, a knife holder and a knife body, the tail end of the knife body is embedded into the knife holder, the surface of the knife holder is in threaded connection with a bolt used for fixing the knife body, the surface of one side of the knife holder is elastically connected with a clamping plate through a spring, and a pressing plate is fixedly arranged on the surface of the clamping plate. First clamping teeth are integrally formed on the surface of the clamping plate, a cavity used for containing the tool apron to slide is formed in the handle, a first sliding groove is formed in the surface of the top of the handle, a second sliding groove is formed in the surface of one side of the handle, and second clamping teeth used for being meshed with the first clamping teeth are integrally formed on the surface of the inner wall of one side of the handle. According to the technical scheme, the first clamping teeth and the second clamping teeth of the clamping plate are separated by pressing the pressing plate, the cutter body is stirred through the bolt, the cutter body can be conveniently and completely contained in the handle, the cutter body and the cutter base can be separated only by unscrewing the bolt when the cutter body is replaced, and therefore the technical effects that the cutter body is safely contained and the cutter body can be replaced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical engineering, in particular to an electrician's knife with replaceable heads and wire stripping capabilities. Background Art

[0002] The electrician's knife is a cutting tool commonly used by electricians. An ordinary electrician's knife consists of a blade, a knife edge, a knife handle, a knife hook, etc. The blade edge is mainly used to cut the thicker insulation layer of the cable. The cables that cannot be stripped by ordinary wire strippers are stripped by the electrician's knife. The current electrician's knife is stored in a folding manner, with the back of the knife on the outside. When the storage is more casual, the tip of the knife may not be completely stored. It is easy to be scratched when it is taken out again after being placed, or the blade may be damaged when placed. When in use, if the blade part has small damage, it can be repaired by grinding, but if a large gap appears on the blade due to improper operation, the entire knife body will be scrapped and the handle can no longer be used. It is urgently needed to be improved. Therefore, we propose an electrician's knife with replaceable head and wire stripping. Utility Model Content

[0003] The utility model aims to provide an electrician's knife with a replaceable head and capable of stripping wires, thereby solving the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electrician's knife with replaceable head and wire stripping function, comprising a handle, a knife seat and a knife body, the tail end of the knife body is embedded in the knife seat, a bolt for fixing the knife body is threadedly connected to the surface of the knife seat, a clamping plate is elastically connected to the surface of one side of the knife seat through a spring, a pressing plate is fixedly provided on the surface of the clamping plate, a clamping tooth 1 is integrally formed on the surface of the clamping plate, a cavity for accommodating the sliding of the knife seat is provided inside the handle, a slide groove 1 for guiding the movement of the bolt is provided on the top surface of the handle, a slide groove 2 for guiding the movement of the press plate is provided on the surface of one side of the handle, and a clamping tooth 2 for meshing with the clamping tooth 1 is integrally formed on the inner wall surface of one side of the handle.

[0005] As a preferred implementation of the technical solution of the present application, a U-shaped stopper is fixedly provided on one side of the handle close to the rear end of the blade body, and the U-shaped stopper is embedded and connected with the end of the blade body facing away from the cutting edge when in the extended state.

[0006] As a preferred implementation of the technical solution of the present application, the pressing plate is clamped in the second slide groove, and the narrow side width of the second slide groove is consistent with the narrow side width of the pressing plate.

[0007] As a preferred implementation of the technical solution of the present application, the narrow side width of the first slide groove is consistent with the maximum diameter of the threaded column of the bolt.

[0008] As a preferred implementation of the technical solution of the present application, a through hole for cooperating with a bolt is provided at the rear end of the blade body, and an arc blade is provided on the cutting edge of the blade body and on the side close to the handle.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The technical solution of the present application separates the first and second teeth of the clamping plate by pressing the pressing plate, and uses a bolt to move the knife body, so that the knife body can be completely stored inside the handle. When replacing the knife body, it is only necessary to loosen the bolt to separate the knife body from the knife seat, thereby achieving the technical effect of safe storage of the knife body and replaceable knife body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0012] Figure 1 This is a three-dimensional diagram of an electrician's knife with replaceable head and wire stripping function according to the utility model;

[0013] Figure 2 is a cross-sectional view of the handle;

[0014] Figure 3 This is a schematic diagram of the structure of the knife holder.

[0015] In the figure: 1. handle; 2. slide groove 1; 3. knife seat; 4. bolt; 5. U-shaped stopper; 6. knife body; 7. slide groove 2; 701. tooth 2; 8. clamping plate; 801. tooth 1; 9. press plate; 10. spring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] Embodiment 1, as Figure 1-3 As shown, the utility model provides a technical solution: an electrician's knife with replaceable head and wire stripping, comprising a handle 1, a knife seat 3 and a knife body 6, the tail end of the knife body 6 is embedded in the knife seat 3, the surface of the knife seat 3 is threadedly connected with a bolt 4 for fixing the knife body 6, one side surface of the knife seat 3 is elastically connected with a clamping plate 8 through a spring 10, a pressing plate 9 is fixedly arranged on the surface of the clamping plate 8, and a clamping tooth 801 is integrally formed on the surface of the clamping plate 8, a cavity for accommodating the sliding of the knife seat 3 is arranged inside the handle 1, a slide groove 2 for guiding the movement of the bolt 4 is provided on the top surface of the handle 1, a slide groove 2 for guiding the movement of the press plate 9 is provided on one side surface of the handle 1, and a clamping tooth 701 for meshing with the clamping tooth 801 is integrally formed on the inner wall surface of one side of the handle 1.

[0018] In a specific embodiment of the present invention, the handle 1 is divided into two layers, the inner layer is made of stainless steel as the main frame, and the outer layer is wrapped with rubber material to ensure its insulation. A notch is opened at one end of the handle 1 close to the U-shaped stopper 5 for inserting the knife seat 3. After the knife seat is inserted into the handle 1, the pressing plate 9 is pressed to insert the pressing plate 9 into the inside of the slide groove 7. At this time, the spring 10 can apply a thrust to the card plate 8, so that the card tooth 1 801 of the card plate 8 is engaged with the card tooth 2 701. The knife seat 3 cannot be easily moved without pressing the pressing plate 9. Then the tail end of the knife body 6 is embedded in the card groove of the knife seat 3, and then the bolt 4 is screwed in. The stud of the bolt 4 passes through the slide groove 2 and the knife seat 3, and finally cooperates with the through hole at the tail end of the knife body 6, thereby completing the assembly of the knife body 6 and the knife seat 3.

[0019] In the preferred technical solution, a U-shaped stopper 5 is fixedly provided on one side of the handle 1 close to the rear end of the blade body 6. The U-shaped stopper 5 is embedded and connected to the end of the blade body 6 that is away from the cutting edge when the blade body 6 is in the extended state. The U-shaped stopper 5 provides auxiliary support to the back side of the blade body 6 when the blade body 6 is in use, so that when the blade body 6 is cutting a thicker insulating layer, the handle 1 and the U-shaped stopper 5 can provide sufficient supporting force.

[0020] In the preferred technical solution, the push plate 9 is clamped in the second slide groove 7 , and the narrow side width of the second slide groove 7 is consistent with the narrow side width of the push plate 9 , thereby reducing the shaking of the push plate 9 when sliding in the second slide groove 7 .

[0021] In the preferred technical solution, the narrow side width of the slide groove 2 is consistent with the maximum diameter of the threaded column of the bolt 4, thereby reducing the shaking of the bolt 4 when sliding in the slide groove 2.

[0022] In the preferred technical solution, a through hole is opened at the rear end of the blade body 6 for cooperating with the bolt 4, and a circular arc blade is opened on the cutting edge of the blade body 6 and the side close to the handle 1, and the circular arc blade is used to cut the cable insulation layer in a circular shape.

[0023] Working principle: by pressing the pressing plate 9, the latch tooth 1 801 is separated from the latch tooth 2 701 and the bolt head of the bolt 4 is not in close contact with the surface of the handle 1. At this time, the position of the blade 6 relative to the handle 1 can be adjusted by the bolt 4. After the blade 6 is fully extended out of the handle 1, the pressing plate 9 is released, and the rebound force of the spring 10 makes the latch tooth 1 801 and the latch tooth 2 701 adaptively engage, and the bolt 4 is tightened so that the bolt head of the bolt 4 is in close contact with the surface of the handle 1, thereby limiting the movement of the blade 6 and ensuring the stability of the blade 6 during use. Subsequently, the U-shaped stopper 5 provides auxiliary support to the back side of the blade 6 when the blade 6 is in use, which can extend the service life of the blade 6 and the handle 1 as a whole to a certain extent.

Claims

1. An electrician's knife with replaceable head and wire stripping function, characterized in that: The invention comprises a handle (1), a knife seat (3) and a knife body (6), wherein the rear end of the knife body (6) is embedded in the knife seat (3), the surface of the knife seat (3) is threadedly connected with a bolt (4) for fixing the knife body (6), a side surface of the knife seat (3) is elastically connected with a clamping plate (8) through a spring (10), a pressing plate (9) is fixedly arranged on the surface of the clamping plate (8), and a first clamping tooth (801) is integrally formed on the surface of the clamping plate (8), a cavity for accommodating the sliding of the knife seat (3) is arranged inside the handle (1), a sliding groove (2) for guiding the movement of the bolt (4) is arranged on the top surface of the handle (1), a second sliding groove (7) for guiding the movement of the pressing plate (9) is arranged on the side surface of the handle (1), and a second clamping tooth (701) for meshing with the first clamping tooth (801) is integrally formed on the inner wall surface of one side of the handle (1).

2. The electrician's knife with replaceable head and wire stripping function according to claim 1, characterized in that: A U-shaped stopper (5) is fixedly provided on one side of the handle (1) close to the rear end of the knife body (6), and the U-shaped stopper (5) is embedded and connected to the end of the knife body (6) facing away from the cutting edge when in the extended state.

3. The electrician's knife with replaceable head and wire stripping function according to claim 1, characterized in that: The pressing plate (9) is clamped in the second slide groove (7), and the narrow side width of the second slide groove (7) is consistent with the narrow side width of the pressing plate (9).

4. The electrician's knife with replaceable head and wire stripping function according to claim 1, characterized in that: The narrow side width of the slide groove 1 (2) is consistent with the maximum diameter of the threaded column of the bolt (4).

5. The electrician's knife with replaceable head and wire stripping function according to claim 1, characterized in that: A through hole for cooperating with the bolt (4) is provided at the rear end of the knife body (6), and a circular arc knife edge is provided on the cutting edge of the knife body (6) and on the side close to the handle (1).

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