Electrolytic pole-changing ratchet wrench

Abstract

The utility model discloses an electrolysis pole-changing ratchet wrench and aims to solve the technical problems that a ratchet wrench in the prior art is short in service life, and a shifting piece is difficult to disassemble and replace after being abraded or broken. The wrench specifically comprises a wrench handle part and a wrench head part, a ratchet wheel is rotatably arranged in the wrench head part, a square notch is further formed in the center of the ratchet wheel, and a shifting piece assembly used for limiting the ratchet wheel is further fixed to the wrench head part; wherein the plectrum assembly comprises a plectrum and a fixing bolt, a plectrum through hole is formed in the plectrum, the fixing bolt penetrates through the plectrum through hole and is fixed to the wrench head, and the plectrum moves on the fixing bolt; the external shifting piece is used for limiting the ratchet wheel in the wrench, operation is easy, disassembly and replacement are convenient, the service life of the ratchet wrench is prolonged, meanwhile, manpower and material resources are saved, and the construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wrench tools, in particular to an electrolytic pole-changing ratchet wrench. Background Art

[0002] The electrolysis workshop is a facility specially used for electrochemical processes, mainly used for electrolytic machining, electrolytic etching, electrolytic plating and other processes; among them, electrolytic pole replacement is an indispensable step in the electrolysis process.

[0003] In the electrolysis pole-changing operation, since the small box clamps need to be manually loosened and tightened, especially after the new pole is placed, the employees need to operate at the edge of the tank with their feet on the hot electrolyte block. The traditional electrolysis clamp wrench needs to change the operating position during the process of tightening the clamp, which undoubtedly increases the risk of employees slipping, falling and scalding. Therefore, in the actual pole-changing operation, employees use ratchet wrenches instead, so that there is no need to walk during the loosening and tightening process of the clamps, and the ratchet wrench can return to its position to ensure the safe position of personnel, reducing the risk of personnel slipping, falling and scalding during operation. Therefore, the ratchet wrench plays an important role in reducing the risk of pole-changing operations. Moreover, due to the frequent pole-changing work in the electrolysis workshop, the pole-changing ratchet wrench is also used frequently.

[0004] In the prior art, all existing ratchet wrenches are designed with a paddle built in. For example, a patent with publication number CN206550936 U discloses a ratchet wrench. Although this wrench with a built-in paddle design can achieve the purpose that the above ratchet wrench can achieve, due to the characteristics of the electrolytic environment such as high temperature and strong corrosion, and the ratchet wrench is used frequently in this environment, it is easy to lead to a short lifespan. In addition, when the built-in paddle is worn or broken, it is difficult to disassemble and replace, which indirectly leads to the scrapping of the wrench, affects work efficiency, and wastes manpower and material resources. It can be seen that for such high-temperature, strong-corrosion and frequent use of ratchet wrenches in working environments, a new type of ratchet wrench is urgently needed to solve the existing problems.

[0005] The information disclosed in this background technology section is only used to deepen the understanding of the background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Utility Model Content

[0006] In view of at least one of the above technical problems, the present disclosure provides an electrolytic pole-changing ratchet wrench, aiming to solve the problems in the prior art of short life of ratchet wrenches and difficulty in disassembly and replacement after the paddle is worn or broken.

[0007] According to one aspect of the present disclosure, an electrolytic pole-changing ratchet wrench is provided, comprising a wrench handle and a wrench head, wherein a ratchet is rotatably provided in the wrench head, a square notch is provided in the center of the ratchet, and a paddle assembly for limiting the ratchet is fixed on the wrench head.

[0008] In some embodiments of the present disclosure, the paddle assembly includes a paddle and a fixing bolt. The paddle is provided with a paddle through hole. The fixing bolt passes through the paddle through hole and is fixed on the wrench head. The paddle performs displacement motion on the fixing bolt.

[0009] In some embodiments of the present disclosure, the wrench head is provided with a screw hole matching the fixing bolt.

[0010] In some embodiments of the present disclosure, the end of the paddle is in the same direction fitted to the gear teeth on the ratchet, and the width of the paddle is equal to the thickness of the gear teeth.

[0011] In some embodiments of the present disclosure, a compression spring is further provided between the paddle and the fixing bolt, and the outer diameter of the compression spring is smaller than the outer diameter of the end of the fixing bolt. When the fixing bolt is fixed to the wrench head, the compression spring presses the paddle to make the paddle fit tightly with the gear teeth.

[0012] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0013] 1. The ratchet wrench of the present application adopts an external paddle design to limit the ratchet inside the wrench, which is not only simple to operate, but also prolongs its service life and saves manpower and material resources.

[0014] 2. The paddle in this application is easy to disassemble. When the paddle is damaged or worn, it can be directly replaced without the aid of special tools, which effectively saves working time and improves work efficiency.

[0015] 3. The bolts, compression springs and picks used in this application are all recycled waste materials, which saves construction costs and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of a ratchet wrench in one embodiment of the present application.

[0017] Figure 2 for Figure 1 Enlarged partial cross-sectional view of part A in the middle.

[0018] Figure 3 for Figure 1 Enlarged exploded view of part A in the middle.

[0019] In the above figures, 1. ratchet, 11. gear teeth, 111. square notch, 12. wrench head, 13. wrench handle, 14. screw hole, 2. paddle assembly, 21. paddle, 211. paddle through hole, 22. compression spring, 23. bolt, 231. external thread. DETAILED DESCRIPTION

[0020] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The "first", "second", etc. involved in the present application are used to distinguish the objects being described and do not have any order or technical meaning. The "connection" and "connection" involved in the present application, unless otherwise specified, include direct and indirect connections (connections).

[0021] The embodiment of the present application provides an electrolytic pole-changing ratchet wrench to solve the problems of short life of ratchet wrenches in the prior art, and difficulty in disassembly and replacement after the paddle is worn or broken. In order to better understand the technical solution of the present application, the above technical solution will be described in detail below in conjunction with the drawings of the specification and specific implementation methods.

[0022] This example discloses an electrolytic pole-changing ratchet wrench, see Figure 1 , specifically comprising a wrench handle 13 and a wrench head 12, wherein a ratchet 1 is rotatably arranged in the wrench head 12, a square notch 111 is also provided at the center of the ratchet 1, and a paddle assembly 2 for limiting the ratchet 1 is also fixed on the wrench head 12. Figures 2-3The paddle assembly 2 includes a paddle 21 and a fixing bolt 23. The end of the paddle 21 is in the same direction and fits on the gear teeth 11 on the ratchet 1. The width of the paddle 21 is equal to the thickness of the gear teeth 11. The paddle 21 is provided with a paddle through hole 211. The fixing bolt 23 passes through the paddle through hole 211 and is fixed on the wrench head 12. The paddle through hole 211 should be slightly larger than the outer diameter of the stud in the fixing bolt 23 so that the paddle 21 can move on the fixing bolt 23. A compression spring 22 is also sleeved between the paddle 21 and the fixing bolt 23. The outer diameter needs to be smaller than the outer diameter of the bolt head in the fixing bolt 23, and larger than the diameter of the paddle through hole 211. When the fixing bolt 23 is fixed on the wrench head 12, the compression spring 22 presses the paddle 21 at the same time, so that the paddle 21 and the gear teeth 12 fit tightly. A screw hole 14 matching the external thread 231 on the fixing bolt 23 is also provided on the wrench head 12. In the embodiment of the present application, an external paddle design is used to limit the ratchet 1 in the wrench, which is not only simple to operate, but also strong in firmness, has a long service life, and saves manpower and material resources.

[0023] See also Figures 1 to 3 When the ratchet wrench in this embodiment is used, the square notch 111 is clamped to the corresponding position, and then the wrench handle part 13 is held and rotated clockwise. At this time, the paddle 21 is pushed into between the gear teeth 11, restricting the ratchet 1 and driving the ratchet 1 to rotate clockwise at the same time, and the purpose of tightening is achieved through the action of the square notch 111; when it is rotated to a certain angle, the wrench handle part 13 is rotated counterclockwise. At this time, the paddle 21 rotates around the ratchet 1 under the thrust of the gear teeth 11, and under the action of the compression spring 22, the paddle 21 is tightly fitted on the surface of the gear teeth 11 when it contacts with the gear teeth 11, and the ratchet 1 does not move without being restricted; after the wrench handle part 13 is rotated back to the original position, it is then rotated clockwise again, and the operation is repeated to achieve the tightening effect; in addition, when loosening operation is required, only the ratchet wrench can be used in reverse, which is simple and convenient to operate. Moreover, when the bolt 23, compression spring 22 or paddle 21 in the paddle assembly 2 is damaged or worn, it can be directly replaced without the aid of special tools, which effectively saves working time and improves work efficiency; in addition, the replacement materials used above are all waste recycled materials, which can save construction costs and improve construction benefits.

[0024] Although some preferred embodiments of the utility model have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the utility model.

[0025] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An electrolytic pole-changing ratchet wrench, characterized in that: The utility model comprises a wrench handle and a wrench head. A ratchet is rotatably arranged in the wrench head. A square notch is also opened in the center of the ratchet. A paddle assembly for limiting the ratchet is also fixed on the wrench head.

2. The electrolytic pole-changing ratchet wrench according to claim 1, characterized in that: The paddle assembly comprises a paddle and a fixing bolt. A paddle through hole is provided on the paddle. The fixing bolt passes through the paddle through hole and is fixed on the wrench head. The paddle performs displacement movement on the fixing bolt.

3. The electrolytic pole-changing ratchet wrench according to claim 2, characterized in that: The wrench head is provided with a screw hole matching the fixing bolt.

4. The electrolytic pole-changing ratchet wrench according to claim 2, characterized in that: The end of the paddle is in the same direction fitted to the gear teeth on the ratchet, and the width of the paddle is equal to the thickness of the gear teeth.

5. The electrolytic pole-changing ratchet wrench according to claim 4, characterized in that: A compression spring is also sleeved between the paddle and the fixing bolt. The outer diameter of the compression spring is smaller than the outer diameter of the end of the fixing bolt. When the fixing bolt is fixed to the wrench head, the compression spring presses the paddle to make the paddle fit tightly with the gear teeth.

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