Multi-functional electrician knife

By designing the main and lower blade shell structures of a multi-functional electrician's knife, and using a fixed post and nut connection to limit the wire movement, the problem of wire deviation during circumferential cutting with the electrician's knife is solved, improving safety and operational efficiency.

CN224407665UActive Publication Date: 2026-06-26ZHENJIANG HUAAN MECHANICAL & ELECTRICAL EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG HUAAN MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
Filing Date
2025-08-06
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing electrician's knives lack a limiting mechanism when circumferentially cutting wires, causing the wires to easily deviate and resulting in low safety.

Method used

A multi-functional electrician's knife was designed, comprising a main blade housing and a lower blade housing, which are connected by a fixing post and a nut to achieve the limiting and stable circumferential cutting of the wire. It is equipped with a utility knife for stripping and cutting. A wire hole and a beveled groove are provided between the main blade housing and the lower blade housing to accommodate wires of different diameters.

Benefits of technology

It achieves stability in the wire circumferential cutting process, avoids deviation, improves safety, simplifies cable stripping and cutting operations, and improves efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224407665U_ABST
    Figure CN224407665U_ABST
Patent Text Reader

Abstract

The utility model relates to electrician's knife technical field, concretely is a kind of multifunctional electrician's knife, including main cutter shell, the inside of main cutter shell is provided with art knife, the inside of one end of art knife is penetrated with slide column, the outer wall of both ends of slide column is connected with fastening screw, the below of main cutter shell is provided with lower cutter shell, the inside of one end of lower cutter shell is penetrated with fixed column, the outer wall of both ends of fixed column is connected with nut, wire hole is set in the tangent place of main cutter shell and lower cutter shell, the side of main cutter shell and lower cutter shell away from wire hole is set with inclined plane groove.The utility model electrician's knife can guarantee the stability of the position when wire loop cutting, avoid the deviation of wire loop cutting, improve certain security, and it is strong in function, simple and fast in operation, greatly improve the efficiency of stripping, the wire in cable can be put into wire hole, lower cutter shell is rotated around fixed column, and the wire can be cut off by extrusion of lower cutter shell.
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Description

Technical Field

[0001] This utility model relates to the field of electrician's knife technology, specifically a multi-functional electrician's knife. Background Technology

[0002] An electrician's knife is a common cutting tool used by electricians and is a widely used electrical tool in the daily work of electrical workers.

[0003] However, in the process of using your existing electrician's knife, the electrician's knife can use the blade to strip the wire, or put the wire under the blade and rotate it to cut the wire. During the cutting process, there is no mechanism to limit the wire, and the wire is prone to deviating during the cutting process, which is unsafe. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-functional electrician's knife to solve the problem mentioned in the background art of lacking a mechanism to limit the wire.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional electrician's knife, comprising:

[0006] The main blade housing contains a utility knife. A sliding post extends through one end of the utility knife, and fastening screws are connected to the outer walls of both ends of the sliding post. A lower blade housing is located below the main blade housing. A fixing post extends through one end of the lower blade housing, and nuts are connected to the outer walls of both ends of the fixing post. A wire hole is provided at the tangent point between the main blade housing and the lower blade housing. A beveled groove is provided on the side of the main blade housing and the lower blade housing away from the wire hole.

[0007] Preferably, the main blade housing has a sliding hole corresponding to the size of the sliding column.

[0008] Preferably, both the utility knife and the sliding column are slidably connected to the main blade housing.

[0009] Preferably, the fastening screw is fixedly connected to the slide column.

[0010] Preferably, the lower blade housing is rotatably connected to the fixed column, and the lower part of the main blade housing and the upper part of the lower blade housing are respectively provided with circumferential cutting holes of gradually decreasing diameter.

[0011] Preferably, the fixing post is fixedly connected to the main blade housing, and the lower part of the utility knife is located inside the circumferential cutting hole.

[0012] Preferably, the nut is threadedly connected to the fixing post.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) When using this utility model electrician's knife, the lower blade shell can be opened around the fixed post, and the wire can be placed into the appropriate circumferential cutting hole according to its own diameter. Then the lower blade shell can be closed around the fixed post, and both the main blade shell and the lower blade shell are in contact with the wire. The bottom of the utility knife cuts into the wire. By rotating the electrician's knife, the circumferential cutting of the wire can be completed. This can ensure the stability of the wire position during circumferential cutting, avoid the wire from deviating during circumferential cutting, improve safety to a certain extent, and has strong functionality.

[0015] (2) When using this utility model electrician's knife, if it is necessary to directly strip the cable, the lower blade shell can be attached to the main blade shell, the fastening screw can be pressed down, and the utility knife can be slid slightly out of the main blade shell. The tip of the utility knife is in the inclined groove. The cable is pressed into the inclined groove. One hand holds the cable steady, and the other hand drags the electrician's knife to directly complete the cable stripping operation. The operation is simple and quick, which greatly improves the stripping efficiency. The wire inside the cable can be put into the wire hole. The lower blade shell can be rotated around the fixed post. The wire can be cut by the squeezing of the lower blade shell. It has strong functionality. Attached image description:

[0016] Figure 1 This is a front view of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Schematic diagram of part A in the middle;

[0018] Figure 3 This is a schematic diagram of the front end of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of this utility model in its open state;

[0020] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0021] In the diagram: 01, main blade housing; 02, utility knife; 03, sliding column; 04, fastening screw; 05, lower blade housing; 06, fixing column; 07, nut; 08, wire hole; 09, beveled groove. Detailed implementation method:

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5One embodiment of this utility model is a multi-functional electrician's knife. The utility knife 02 used in this application is a product that can be directly purchased on the market. Its principle and connection method are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0024] Includes: a main cutter housing 01, which guides the sliding post 03; a utility knife 02 is housed inside the main cutter housing 01, with the sliding post 03 penetrating one end of the utility knife 02; fastening screws 04 are connected to the outer walls of both ends of the sliding post 03; pressing the fastening screws 04 allows the utility knife 02 to slide out of the main cutter housing 01, facilitating the cutting of cables with the utility knife 02, which is simple and quick to operate; a lower cutter housing 05 is located below the main cutter housing 01; after the wire is placed into the circumferential cutting hole, the lower cutter housing 05 is closed around the fixing post 06, so that both the main cutter housing 01 and the lower cutter housing 05 are in contact with the wire, and the utility knife 02 cuts in from below. Inside the wire, rotating the electrician's knife allows for circumferential cutting of the wire. A fixing post 06 runs through one end of the lower blade housing 05, and nuts 07 are connected to the outer walls of both ends of the fixing post 06. A wire hole 08 is provided at the point where the main blade housing 01 and the lower blade housing 05 are tangent. The wire inside the conductor is placed into the wire hole 08, and the lower blade housing 05 is rotated around the fixing post 06. The wire can be cut by the squeezing action of the lower blade housing 05. A beveled groove 09 is provided on the side of the main blade housing 01 and the lower blade housing 05 away from the wire hole 08. The wire is pressed into the beveled groove 09, and the wire is held steady with one hand while the electrician's knife is dragged with the other hand to directly complete the cable stripping operation.

[0025] Furthermore, the main blade housing 01 has a sliding hole corresponding to the size of the sliding column 03. The main blade housing 01 guides the sliding column 03. By pressing the fastening screw 04, the utility knife 02 can be slid out of the main blade housing 01, making it convenient to use the utility knife 02 to cut the cable. The operation is simple and quick. The main blade housing 01 guides the sliding column 03. There are circumferential cutting holes of different sizes between the main blade housing 01 and the lower blade housing 05. They are oval in shape, which can clamp cables of different diameters into the appropriate hole. By pressing the main blade housing 01 and the lower blade housing 05 with your hand, you can select the blade to make a circumferential cut on the cable.

[0026] Furthermore, both the utility knife 02 and the sliding post 03 are slidably connected to the main blade housing 01. By pressing the fastening screw 04, the utility knife 02 can be slid out of the main blade housing 01, making it convenient to use the utility knife 02 to cut the cable. The operation is simple and quick. The main blade housing 01 guides the sliding post 03. After the wire is placed into the circumferential cutting hole, the lower blade housing 05 is closed around the fixing post 06. Both the main blade housing 01 and the lower blade housing 05 are in contact with the wire. The utility knife 02 cuts into the wire from below. By rotating the electrician's knife, the circumferential cutting of the wire can be completed. The cable is pressed into the inclined groove 09. One hand holds the cable steady, and the tip of the utility knife 02 extends to the same length as the cable thickness. The other hand slides the blade to complete the longitudinal cutting operation of the cable.

[0027] Furthermore, the fastening screw 04 is fixedly connected to the sliding column 03. By pressing the fastening screw 04, the utility knife 02 can be slid out of the main blade housing 01, making it convenient to use the utility knife 02 to cut the cable. The operation is simple and quick. After the wire is placed into the circumferential cutting hole, the lower blade housing 05 is closed around the fixed column 06. Both the main blade housing 01 and the lower blade housing 05 are in contact with the wire. The bottom of the utility knife 02 cuts into the wire. By rotating the electrician's knife, the circumferential cutting of the wire can be completed. Loosening the fastening screw 04 allows the utility knife 02 to slide out of the main blade housing 01. The sliding length is freely adjustable, realizing the basic cutting function of the utility knife.

[0028] Furthermore, the lower blade housing 05 is rotatably connected to the fixed post 06. After the wire is placed into the circumferential cutting hole, the lower blade housing 05 is closed around the fixed post 06. Both the main blade housing 01 and the lower blade housing 05 are in contact with the wire. The utility knife 02 cuts into the wire from below. By rotating the electrician's knife, the circumferential cutting of the wire can be completed. The lower part of the main blade housing 01 and the upper part of the lower blade housing 05 are respectively provided with circumferential cutting holes of gradually decreasing diameter, which facilitates circumferential cutting of wires of different sizes and ensures that the position of the wire will not shift during the circumferential cutting process. After the blade 02 is put into the main blade housing 01 and the cable is placed into the circumferential cutting hole, the lower blade housing 05 is closed around the fixed post 06. Both the main blade housing 01 and the lower blade housing 05 are in contact with the cable. The utility knife 02 cuts into the cable. By rotating the blade, the circumferential cutting of the cable sheath can be completed.

[0029] Furthermore, the fixing post 06 is fixedly connected to the main blade housing 01 to ensure the stability of the fixing post 06. After the lower blade housing 05 is opened around the fixing post 06, wires of different diameters can be placed into the circumferential cutting holes of different sizes. The lower part of the utility knife 02 is located in the circumferential cutting hole. After the wire is placed into the circumferential cutting hole, the lower blade housing 05 is closed around the fixing post 06. Both the main blade housing 01 and the lower blade housing 05 are in contact with the wire. The lower part of the utility knife 02 cuts into the wire. By rotating the electrician's knife, the circumferential cutting of the wire can be completed. The nut 07 is threadedly connected to the fixing post 06. Screwing the nut 07 into the fixing post 06 can limit the connection of the lower blade housing 05 to prevent it from falling off. The protrusion on the front of the lower blade housing 05 and the concave point on the front of the main blade housing 01 can ensure the stability of the lower blade housing 05 and the main blade housing 01 in the closed state.

[0030] Furthermore, the nut 07 is threadedly connected to the fixing post 06. Screwing the nut 07 into the fixing post 06 can limit the lower blade housing 05 and prevent it from falling off. The upper part of the lower blade housing 05 is in contact with the main blade housing 01 through friction, which can ensure the stability of the lower blade housing 05 in the closed state. By pressing the fastening screw 04, the utility knife 02 can be slid out of the main blade housing 01, making it convenient to use the utility knife 02 to cut cables. The operation is simple and quick. The main blade housing 01 plays a guiding role for the sliding post 03. Loosening the fastening screw 04 and taking out the sliding post 03 allows for quick blade replacement. The operation is simple and quick.

[0031] Working principle: When using this device, to cut the wire in a ring, open the lower blade housing 05 around the fixing post 06, insert the wire into the appropriate ring cutting hole according to its diameter, and then close the lower blade housing 05 around the fixing post 06. Both the main blade housing 01 and the lower blade housing 05 are in contact with the wire, and the utility knife 02 cuts into the wire from below. Rotate the electrician's knife to complete the ring cutting of the wire.

[0032] When it is necessary to strip the cable, fit the lower blade housing 05 with the main blade housing 01, press the fastening screw 04, and slide the utility knife 02 slightly out of the main blade housing 01. The tip of the utility knife 02 is in the inclined groove 09. Press the cable into the inclined groove 09, hold the wire with one hand, and drag the electrician's knife with the other hand to directly complete the cable stripping operation.

[0033] Insert the wire from the cable into the wire hole 08, and rotate the lower blade housing 05 around the fixed post 06. The wire can be cut by the compression of the lower blade housing 05. The above is the complete working principle of this utility model.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-functional electrician's knife, characterized in that, include: A main blade housing (01) is provided inside the main blade housing (01). A utility knife (02) is provided inside one end of the utility knife (02). A sliding post (03) is passed through the inside of one end of the utility knife (02). Fastening screws (04) are connected to the outer walls of both ends of the sliding post (03). A lower blade housing (05) is provided below the main blade housing (01). A fixing post (06) is passed through the inside of one end of the lower blade housing (05). Nuts (07) are connected to the outer walls of both ends of the fixing post (06). A wire hole (08) is provided at the tangent point between the main blade housing (01) and the lower blade housing (05). A beveled groove (09) is provided on the side of the main blade housing (01) and the lower blade housing (05) away from the wire hole (08).

2. The multi-functional electrician's knife according to claim 1, characterized in that: The main blade housing (01) has a sliding hole corresponding to the size of the sliding column (03).

3. The multi-functional electrician's knife according to claim 1, characterized in that: The utility knife (02) and the slide column (03) are both slidably connected to the main blade housing (01).

4. A multi-functional electrician's knife according to claim 1, characterized in that: The fastening screw (04) is fixedly connected to the slide (03).

5. A multi-functional electrician's knife according to claim 2, characterized in that: The lower blade housing (05) is rotatably connected to the fixed column (06), and the lower blade housing (01) and the upper blade housing (05) are respectively provided with circumferential cutting holes with gradually decreasing diameters.

6. A multi-functional electrician's knife according to claim 3, characterized in that: The fixing post (06) is fixedly connected to the main blade housing (01), and the lower part of the utility knife (02) is located in the circumferential cutting hole.

7. A multi-functional electrician's knife according to claim 4, characterized in that: The nut (07) is threadedly connected to the fixing post (06).