Electrical maintenance tool
By adopting a multi-layer column design and a limiting structure in the electrical maintenance tools, the problem of tool tip slippage has been solved, achieving stable storage and convenient access to the tool tip, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520548837.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-26
AI Technical Summary
The cutting heads of existing electrical maintenance tools are prone to slipping during handling or movement, and lack effective limiting structures, leading to increased picking and placing costs.
It adopts a multi-layer column design, with slots on the top edge of each column. The slots contain limiting grooves and limiting plates. The limiting plates have pick-up and drop holes, and the limiting grooves contain retaining rings and flaps. They are connected by a damping shaft to form rigid and damping constraints to prevent the cutter head from slipping.
It effectively prevents the blade from slipping, ensuring that the blade will not slip out when the tool is tilted or collided with, reducing the maintenance costs of picking up and placing, and improving the stability and convenience of use.
Smart Images
Figure CN223863677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maintenance tools, and in particular to an electrical maintenance tool. Background Technology
[0002] Electrical repair tools typically consist of a modular screwdriver set, which includes a handle, a cylindrical magnetic screwdriver head storage base, and a protective cover. The tool features a multi-layered ring slot design, allowing for the categorized storage of various screwdriver heads, and the magnetic attachment ensures quick and easy access.
[0003] Existing electrical repair tools have a multi-layered ring slot design with densely packed cutter heads. After removing some cutter heads, the center of gravity shifts, and the tools are prone to tilting due to vibration during movement. In addition, the cutter heads are only fixed by magnetic attraction and lack a limiting structure. When tilted or bumped, the cutter heads are prone to slipping out. When in use, the protective cover is opened, and all the cutter heads are in an unrestrained state. Taking out a single cutter head can easily cause the surrounding cutter heads to slip out as well, increasing the maintenance costs of picking up and placing them.
[0004] Therefore, this application provides an electrical maintenance tool to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to provide an electrical maintenance tool that solves the problems of surrounding tool heads slipping off when a single tool head is picked up, and tool heads slipping off when the tool head is tilted or bumped during movement.
[0006] To solve the above-mentioned technical problems, this utility model provides an electrical maintenance tool, including a tool rack with multiple columns arranged in a stepped, coaxial manner. Multiple slots are formed around the top edge of each column, and a cutting head is placed in each slot. A limiting groove is formed around the side wall of the column above each slot, and an annular limiting plate is placed in the limiting groove to prevent the cutting head from slipping.
[0007] A further improvement of this utility model is that a limiting plate is rotatably installed inside the limiting groove, and a single pick-up and put-out hole adapted to the size of the slot is opened on the limiting plate, the inner diameter of the pick-up and put-out hole being larger than the diameter of the cutter head.
[0008] A further improvement of this utility model is that a retaining ring is provided in the limiting groove, and two semi-annular flaps are respectively provided on the outer circumference of the retaining ring. The two flaps are connected to the retaining ring through a damping shaft, and the retaining ring and the flaps are coaxially distributed.
[0009] A further improvement of this utility model is that the structure of each column is cylindrical.
[0010] A further improvement of this utility model is that the limiting plate is set horizontally, and the limiting plate is higher than the height of each corresponding layer of cutter head.
[0011] A further improvement of this utility model is that the slot is along the axial direction of the table surface.
[0012] A further improvement of this utility model is that an axial cavity is opened at the center of the multi-layered column, and a handle is installed inside the cavity.
[0013] A further improvement to the technical solution of this utility model is that a protective cover is adapted to be installed on the tool rack.
[0014] By adopting the above technical solution, this utility model has the following beneficial effects:
[0015] 1. This utility model provides an electrical maintenance tool that, by setting a limiting groove and a limiting plate, helps to solve the problem of slippage caused by the lack of constraint on the cutter head in traditional magnetic tools. The tool has a stepped coaxial column with multiple layers of columns stacked vertically. Each layer of slots is arranged along the axial direction, physically separating the cutter heads of different layers and avoiding cross-layer interference. An annular limiting plate is set above each layer of slots, which is higher than the height of the cutter head, forming a rigid blocking layer. Even if the tool is tilted at more than 60°, the cutter head is still blocked by the limiting plate and cannot slip.
[0016] 2. The present invention provides an electrical maintenance tool in which a limiting plate is rotatably installed in the limiting groove, which is conducive to precise single-point picking and placing. The limiting plate can rotate around the axis of the column. The cutting head can only be inserted or removed when the picking and placing hole is aligned with the target slot. During operation, the non-target slot is always covered by the solid part of the limiting plate, which forcibly locks the surrounding cutting heads and avoids the linkage slippage caused by the leverage effect.
[0017] 3. The electrical maintenance tool provided by this utility model has two semi-annular flaps on the outer ring of the retaining ring connected by a damping shaft. When opening and closing, it has resistance deflection. When opening, the target cutter head can be manually removed by simply flipping the corresponding flap of the cutter head. When closing, its resistance is greater than the impact force of the cutter head slipping off, which restrains the cutter head. Even if the tool holder is tilted, the cutter head will not slip off. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 This is an overall schematic diagram of electrical maintenance tools;
[0020] Figure 2 A schematic diagram of an electrical maintenance tool without a protective cover;
[0021] Figure 3 A schematic diagram of the limit groove for electrical maintenance tools;
[0022] Figure 4 A schematic diagram of the structure of the limit plate for electrical maintenance tools;
[0023] Figure 5 This is a schematic diagram of the installation of the limiting plate in Example 2;
[0024] Figure 6 This is a schematic diagram of the limiting plate in Example 2;
[0025] Figure 7 This is a schematic diagram of the use of the limiting plate in Example 2.
[0026] Reference numerals: 1. Tool holder; 2. Column; 3. Slot; 4. Cutting head; 5. Limiting groove; 6. Limiting plate; 7. Pick-up and drop-out hole; 8. Snap ring; 9. Flip plate; 10. Damping shaft; 11. Handle; 12. Protective cover. Detailed Implementation
[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.
[0030] The present invention will be further explained below with reference to specific embodiments.
[0031] Example 1
[0032] like Figures 1-4 As shown, this embodiment provides an electrical maintenance tool, including a tool holder 1. The tool holder 1 has multiple layers of columns 2 arranged coaxially in a stepped manner. Each column 2 has multiple slots 3 circumferentially formed at its top edge. The slots 3 are 1.2-1.6 mm deep, and each slot 3 contains a cutting head 4. A limiting groove 5 is formed on the circumference of the side wall of the column 2 above each slot 3. An annular limiting plate 6 is placed within the limiting groove 5 to prevent the cutting head 4 from slipping. When horizontally installed, the lower surface of the limiting plate 6 is 2 mm higher than the top of the cutting head 4, forming a rigid blocking layer. Each column 2 has a cylindrical structure. The limiting plate 6 is horizontally positioned, and its height is higher than the corresponding cutting head 4. The slots 3 are along the axial direction of the work surface. An axial cavity is formed at the center of each of the multiple columns 2, and a handle 11 is placed within the cavity. A protective cover 12 is fitted onto the tool holder 1. This maintenance tool, by setting a limiting groove 5 and a limiting plate 6, helps to solve the problem of slippage caused by the lack of restraint on the cutter head 4 in traditional magnetic tools. The stepped coaxial column 2 has multiple layers of columns 2 stacked vertically, and each layer of slot 3 is arranged along the axial direction, physically separating different layers of cutter heads 4 and avoiding cross-layer interference. An annular limiting plate 6 is set above each layer of slot 3, which is higher than the height of the cutter head 4, forming a rigid blocking layer. Even if the tool is tilted more than 60°, the cutter head 4 is still blocked by the limiting plate 6 and cannot slip.
[0033] like Figures 1-4 As shown, in this embodiment, a limiting plate 6 is rotatably installed inside the limiting groove 5. A single pick-up and put-out hole 7 adapted to the size of the slot 3 is opened on the limiting plate 6. The inner diameter of the pick-up and put-out hole 7 is larger than the diameter of the cutter head 4. The limiting plate 6 is rotatably installed inside the limiting groove 5 of this maintenance tool, which is conducive to precise single-point pick-up and put-out. The limiting plate 6 can rotate around the axis of the column 2. The cutter head 4 can only be inserted or removed when the pick-up and put-out hole 7 is aligned with the target slot 3. During operation, the non-target slot 3 is always covered by the solid part of the limiting plate 6, which forcibly locks the surrounding cutter heads 4 and avoids the linkage slippage caused by the leverage effect.
[0034] Cutting head 4 storage and retrieval: Pull the handle 11 out from the central cavity, rotate the target layer limiting plate 6 to align the pick-up and put-out hole 7 with the slot 3, pull out the cutting head 4 vertically, and embed the cutting head 4 into the handle 11.
[0035] Example 2
[0036] like Figures 5-7As shown, in this embodiment, a retaining ring 8 is provided in the limiting groove 5. Two semi-annular flaps 9 are respectively provided on the outer circumference of the retaining ring 8. The two flaps 9 are connected to the retaining ring 8 through a damping shaft 10. The retaining ring 8 and the flaps 9 are coaxially distributed. The flaps 9 are 2mm thick, with a 0.5mm silicone anti-slip layer attached to the inner side, and the coefficient of friction μ≥0.6. The flaps 9 are connected through the damping shaft 10, and the damping torque is greater than 0.2N·m. The two semi-annular flaps 9 on the outer ring of the retaining ring 8 are connected through the damping shaft 10. They have resistance deflection when opening and closing. When opening, the target cutter head 4 can be manually removed by simply flipping the corresponding flap 9. When closing, the resistance is greater than the impact force of the cutter head 4 slipping, which restrains the cutter head 4. Even if the tool holder 1 tilts, the cutter head 4 will not slip.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An electrical maintenance tool, characterized in that, The tool rack (1) includes a multi-layer column (2) on the tool rack (1). The multi-layer column (2) is coaxially arranged in a stepped shape. Multiple slots (3) are opened around the top edge of each column (2). A cutter head (4) is installed in the slot (3). A limiting groove (5) is opened around the side wall of the column (2) above each slot (3). An annular limiting plate (6) is installed in the limiting groove (5). The limiting plate (6) prevents the cutter head (4) from slipping.
2. An electrical maintenance tool according to claim 1, characterized in that, A limiting plate (6) is rotatably installed inside the limiting groove (5). A single take-up and put-down hole (7) with the size of the adapter slot (3) is opened on the limiting plate (6). The inner diameter of the take-up and put-down hole (7) is larger than the diameter of the cutter head (4).
3. An electrical maintenance tool according to claim 1, characterized in that, A retaining ring (8) is provided in the limiting groove (5). Two semi-annular flaps (9) are provided on the outer circumference of the retaining ring (8). The two flaps (9) are connected to the retaining ring (8) through a damping shaft (10). The retaining ring (8) and the flaps (9) are coaxially distributed.
4. An electrical maintenance tool according to claim 1, characterized in that, Each column (2) has a cylindrical structure.
5. An electrical maintenance tool according to claim 1, characterized in that, The limiting plate (6) is set horizontally, and the limiting plate (6) is higher than the height of each corresponding layer of cutter head (4).
6. An electrical maintenance tool according to claim 1, characterized in that, The slot (3) is along the axial direction of the table surface.
7. An electrical maintenance tool according to claim 1, characterized in that, An axial cavity is opened at the center of the multi-layer column (2), and a handle (11) is installed in the cavity.
8. An electrical maintenance tool according to claim 1, characterized in that, A protective cover (12) is adapted to be installed on the tool rack (1).