Wire-strippable electrician knife with replaceable head

Abstract

The electrician knife comprises a handle, a mounting base and a blade, a moving groove is formed in the handle, limiting sliding grooves are symmetrically formed in the two opposite surfaces of the inner wall of the moving groove, a penetrating groove is formed in the upper surface of the handle, fixing plates are arranged at the bottoms of the two opposite surfaces of the inner wall of the moving groove, and the fixing plates are arranged on the mounting base. A plurality of first teeth are arranged on the upper surface of the fixing plate, a mounting seat is slidably connected into the moving groove, sliding blocks are symmetrically arranged on the two opposite surfaces of the mounting seat, a movable groove is formed in the mounting seat, and a clamping groove is formed in one side face of the movable groove. The rotary knob is rotated to drive the worm to rotate, the worm is meshed with the worm gear so as to drive the threaded rod to rotate, the threaded rod is in threaded fit with the push plate so as to drive the limiting columns symmetrically arranged on one side face of the push plate to be separated from the limiting grooves and the through holes, and the cutting edge can be pulled out of the inserting groove and replaced.

Description

Technical Field

[0001] This utility model belongs to the field of electrician's knife technology, and in particular relates to an electrician's knife with interchangeable heads and wire stripping capability. Background Technology

[0002] An electrician's knife is a common cutting tool used by electricians. A typical electrician's knife consists of a blade, cutting edge, handle, and clip. When not in use, the blade is retracted into the handle. The base of the blade is hinged to the handle for easy use and storage. Electrician's knives are typically used for cutting the insulation of wires and other materials.

[0003] In existing technology, the blade of an electrician's knife is not replaceable during use. Once the blade breaks, the entire electrician's knife is scrapped. Improper operation can also render the entire knife unusable, and the handle cannot be reused. Therefore, a replaceable head and wire stripping electrician's knife is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide an electrician's knife with interchangeable heads and wire stripping capability to solve existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a replaceable-head, wire-stripping electrician's knife, comprising a handle, a mounting base, and a blade. The handle has a movable groove, and the inner wall of the movable groove has symmetrically formed limiting grooves on opposite sides. A through groove is formed on the upper surface of the handle. A fixing plate is disposed at the bottom of opposite sides of the inner wall of the movable groove. The upper surface of the fixing plate has several teeth. The mounting base is slidably connected within the movable groove. The mounting base has sliding blocks symmetrically arranged on opposite sides. A movable groove is formed within the mounting base, and a retaining groove is formed on one side of the movable groove. A notch is formed on the front side of the mounting base. The device has a slot, in which a worm gear is rotatably connected, and in which a threaded rod is rotatably connected. A worm wheel is inserted through one side of the threaded rod, and a push plate is inserted through the side of the threaded rod. Two sets of limiting posts are symmetrically arranged on one side of the push plate. Limiting grooves are symmetrically opened on one side of the inner wall of the slot. Through holes are symmetrically opened on one side of the blade. The shape and size of the blade are adapted to the slot, and the shape and size of the through holes are adapted to the limiting posts. The top of the worm gear penetrates the upper surface of the inner wall of the movable slot and extends into the through groove. A knob is provided at the top of the worm gear.

[0007] Furthermore, the mounting base has four sets of springs on its bottom surface, each spring has a push block at its bottom end, the push block has toothed plates on its two opposite surfaces, and the mounting base has sliding blocks symmetrically arranged on its two opposite surfaces. The shape and size of the sliding blocks are adapted to the limiting groove, the toothed plates mesh with the teeth, and the sliding blocks slide with the limiting groove.

[0008] Furthermore, the movable groove communicates with the slot, the slot communicates with the slot, the through hole communicates with the limiting groove, the worm gear is fixedly connected to the peripheral side of the threaded rod, the worm gear meshes with the worm, the push plate is threadedly engaged with the threaded rod, and the limiting post passes through the through hole and is set in the limiting groove.

[0009] This utility model has the following beneficial effects:

[0010] This invention uses a knob to rotate a worm gear, which meshes with a worm wheel, thereby rotating a threaded rod. The threaded rod engages with a push plate, causing symmetrically arranged limiting posts on one side of the push plate to disengage from the limiting groove and through hole, allowing the blade to be pulled out of the slot for replacement. Pushing the push block upwards moves toothed plates on opposite surfaces upwards, with the toothed plates not meshing with the teeth, thus allowing the mounting base to move within the moving groove for storage.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A schematic diagram of the overall structure of a replaceable-head, wire-stripping electrician's knife;

[0014] Figure 2 Right view of a replaceable-head, wire-stripping electrician's knife;

[0015] Figure 3 for Figure 2 Cross-sectional view of section AA;

[0016] Figure 4 A front view of a replaceable-head, wire-stripping electrician's knife;

[0017] Figure 5 for Figure 4 Cross-sectional view of section BB in the middle;

[0018] Figure 6 This is a schematic diagram of the mounting base in this utility model.

[0019] The components represented by each number in the attached diagram are listed below: 1. Handle; 10. Through slot; 101. Moving slot; 102. Fixing plate; 103. Tooth 1; 104. Limiting slide groove; 2. Mounting base; 201. Sliding block; 202. Spring; 204. Tooth plate; 203. Push block; 21. Movable slot; 210. Worm gear; 211. Knob; 22. Slot; 220. Threaded rod; 221. Worm wheel; 23. Slot; 230. Limiting slot; 24. Push plate; 241. Limiting post; 3. Blade; 301. Through hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0021] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1-6As shown, this utility model is a replaceable head and wire stripping electrician's knife, including a handle 1, a mounting base 2, and a blade 3. A movable groove 101 is formed inside the handle 1. The inner wall of the movable groove 101 has symmetrically formed limiting grooves 104 on opposite sides. A through groove 10 is formed on the upper surface of the handle 1. A fixing plate 102 is provided at the bottom of opposite sides of the inner wall of the movable groove 101. A plurality of teeth 103 are provided on the upper surface of the fixing plate 102. The mounting base 2 is slidably connected inside the movable groove 101. The mounting base 2 has symmetrically formed teeth 104 on opposite sides. A sliding block 201 is provided. A movable groove 21 is provided in the mounting base 2. A slot 22 is provided on one side of the movable groove 21. A slot 23 is provided on the front side of the mounting base 2. A worm gear 210 is rotatably connected in the movable groove 21. A threaded rod 220 is rotatably connected in the slot 22. A worm wheel 221 is inserted through one side of the threaded rod 220. A push plate 24 is inserted through the side of the threaded rod 220. Two sets of limit posts 241 are symmetrically arranged on one side of the push plate 24. Limit grooves 230 are symmetrically opened on one side of the inner wall of the slot 23.

[0024] Furthermore, a through hole 301 is symmetrically provided on one side of the blade 3. The shape and size of the blade 3 are adapted to the slot 23. The shape and size of the through hole 301 are adapted to the limiting post 241. The top end of the worm 210 passes through the upper surface of the inner wall of the movable groove 21 and extends into the through groove 10. A knob 211 is provided at the top end of the worm 210. Four sets of springs 202 are provided on the bottom surface of the mounting base 2. A push block 203 is provided at the bottom end of the spring 202. A toothed plate 204 is provided on the two opposite surfaces of the push block 203.

[0025] Furthermore, the mounting base 2 is symmetrically provided with sliding blocks 201 on its two opposite surfaces. The shape and size of the sliding blocks 201 are adapted to the limiting slide groove 104. The toothed plate 204 meshes with the tooth 103. The sliding blocks 201 slide with the limiting slide groove 104. The movable groove 21 communicates with the slot 22. The slot 22 communicates with the slot 23. The through hole 301 communicates with the limiting groove 230.

[0026] Furthermore, the worm gear 221 is fixedly connected to the circumferential side of the threaded rod 220, the worm gear 221 meshes with the worm 210, the push plate 24 is threadedly engaged with the threaded rod 220, and the limiting post 241 passes through the through hole 301 and is set in the limiting groove 230.

[0027] It should be noted that, in this utility model, rotating the knob 211 drives the worm gear 210 to rotate. The worm gear 210 meshes with the worm wheel 221, which in turn drives the threaded rod 220 to rotate. The threaded rod 220 engages with the push plate 24, which in turn drives the limiting pins 241 symmetrically arranged on one side of the push plate 24 to disengage from the limiting groove 230 and the through hole 301, so that the blade 3 can be pulled out from the slot 23 for replacement. By pushing the push block 203 upward, the toothed plate 204 arranged on the opposite two surfaces moves upward. The toothed plate 204 does not mesh with the teeth 103, which in turn drives the mounting base 2 to move in the moving groove 101 for storage.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A replaceable-head, wire-stripping electrician's knife, comprising a handle (1), a mounting base (2), and a blade (3), characterized in that: The handle (1) has a movable groove (101) inside. The inner wall of the movable groove (101) has symmetrically arranged limiting grooves (104) on opposite sides. The upper surface of the handle (1) has a through groove (10). The bottom of the inner wall of the movable groove (101) is provided with a fixing plate (102) on opposite sides. The upper surface of the fixing plate (102) is provided with a plurality of teeth (103). The movable groove (101) is slidably connected to a mounting base (2). The mounting base (2) has symmetrically arranged sliding blocks (201) on opposite sides. The mounting base (2) has a movable groove inside. (21) A slot (22) is provided on one side of the movable groove (21), and a slot (23) is provided on the front side of the mounting base (2). A worm gear (210) is rotatably connected in the movable groove (21), and a threaded rod (220) is rotatably connected in the slot (22). A worm wheel (221) is inserted on one side of the threaded rod (220), and a push plate (24) is inserted on the side of the threaded rod (220). Two sets of limiting posts (241) are symmetrically arranged on one side of the push plate (24), and a limiting groove (230) is symmetrically opened on one side of the inner wall of the slot (23).

2. The interchangeable-head, wire-stripping electrician's knife according to claim 1, characterized in that, The blade (3) has a through hole (301) symmetrically opened on one side. The shape and size of the blade (3) are adapted to the slot (23). The shape and size of the through hole (301) are adapted to the limiting post (241). The top end of the worm (210) penetrates the upper surface of the inner wall of the movable groove (21) and extends into the through groove (10). A knob (211) is provided at the top end of the worm (210).

3. The interchangeable-head, wire-stripping electrician's knife according to claim 1, characterized in that, The mounting base (2) has four sets of springs (202) on its bottom surface. The bottom end of each spring (202) has a push block (203), and the push block (203) has toothed plates (204) on its two opposite surfaces.

4. The interchangeable-head, wire-stripping electrician's knife according to claim 3, characterized in that, The mounting base (2) is symmetrically provided with sliding blocks (201) on its two surfaces. The shape and size of the sliding blocks (201) are adapted to the limiting slide groove (104). The toothed plate (204) meshes with the tooth (103). The sliding blocks (201) slide with the limiting slide groove (104).

5. The interchangeable-head, wire-stripping electrician's knife according to claim 2, characterized in that, The movable groove (21) communicates with the card slot (22), the card slot (22) communicates with the slot (23), and the through hole (301) communicates with the limiting groove (230).

6. The interchangeable-head, wire-stripping electrician's knife according to claim 5, characterized in that, The worm gear (221) is fixedly connected to the circumferential side of the threaded rod (220), the worm gear (221) meshes with the worm (210), the push plate (24) is threadedly engaged with the threaded rod (220), and the limiting post (241) passes through the through hole (301) and is set in the limiting groove (230).

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