Wrench capable of saving labor in operation

Abstract

The utility model provides a labor-saving wrench, which relates to the technical field of wrenches, and comprises a wrench handle part and a wrench head part, the upper surface and the lower surface of the wrench head part are respectively provided with a mounting groove, a cylinder is fixedly mounted on one side of the wrench handle part close to the wrench head part, and a forward and reverse motor is fixedly mounted in the cylinder. A rotating shaft is fixedly mounted at the output end of the forward and reverse motor, a gear is fixedly mounted on the surface of the rotating shaft, a round hole is formed in the surface of the wrench handle part, rotating plates are rotationally connected into the mounting grooves, and tooth blocks are fixedly mounted on the surfaces of the rotating plates. The forward and reverse motor, the gear and the rotating plate are arranged, the gear is driven by the forward and reverse motor to rotate, the gear is meshed with the gear block, and the rotating plate rotates in the mounting groove, so that the head of the wrench automatically rotates, screws and fixes a fixed screw, time and labor are saved during operation of a user, and convenience is provided for the user.

Description

Technical Field

[0001] The utility model relates to the technical field of wrenches, in particular to a wrench that saves labor in operation. Background Art

[0002] A wrench is a common tool used to remove and install threaded connections (such as bolts and nuts). It usually consists of a handle and a head. The head can be hexagonal, dodecagonal, square or other shapes to adapt to threaded connections of different types and sizes. Wrenches can be divided into many types, such as open wrenches, box wrenches, socket wrenches, locking wrenches and hexagonal wrenches, etc., which are especially used in fasteners, traffic safety facilities, corrugated beam steel guardrail series products (guardrail plates, columns, anti-blocking blocks, column caps, guardrail bolts). Announcement No. CN218428041U announced a wrench that facilitates operators to remove nuts by rotating the wrench by less than 30°, reducing the wrench's requirements for rotation space and improving disassembly efficiency. However, when the wrench is used in guardrail series products, it is more laborious to use manually, and long-term use consumes the user's physical strength, which does not bring convenience to the user and needs to be improved. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical solution: a wrench with labor-saving operation, comprising a wrench handle and a wrench head, wherein the wrench head is fixedly installed on one end of the wrench handle, and the upper and lower surfaces of the wrench head are provided with mounting grooves, a cylinder is fixedly installed on the side of the wrench handle close to the wrench head, a forward and reverse motor is fixedly installed inside the cylinder, a rotating shaft is fixedly installed on the output end of the forward and reverse motor, a gear is fixedly installed on the surface of the rotating shaft, a rotating hole is provided on the surface of the wrench head, a circular hole is provided on the surface of the wrench handle, a rotating plate is rotatably connected to the inside of the mounting slot, a tooth block is fixedly installed on the surface of the rotating plate, a rotating rod is fixedly installed between the two groups of rotating plates, and a guide hole A and a guide hole B are respectively provided on the far surfaces of the two groups of rotating plates, and a control switch is fixedly installed on the surface of the wrench handle.

[0005] Preferably, the rotating shaft is provided inside the circular hole, the rotating rod is provided inside the rotating hole, and the rotating rod is rotatably connected to the rotating hole. Here, the rotating shaft rotates inside the circular hole, and the rotating rod rotates inside the rotating hole.

[0006] Preferably, a top cover is inserted into the top of the cylinder, and a threaded block is fixedly mounted on the surface of the top cover near the cylinder. The surface of the cylinder near the top cover has a threaded groove. Here, the threaded block rotates within the threaded groove, and the top cover is screwed to fix it to the top of the cylinder, preventing the forward and reverse motors from being exposed. The design of the top cover facilitates installation and removal of the forward and reverse motors.

[0007] Preferably, a limit collar is fixedly mounted on the surface of the rotating rod, and a limit ring groove is defined inside the wrench head, and the limit collar is rotatably connected to the limit ring groove. Here, the limit collar is located inside the limit ring groove, making the rotating rod more stable during rotation and less likely to shake, thereby ensuring stable rotation of the rotating plate.

[0008] Preferably, the gear is meshed with the tooth block, and a handle is fixedly mounted on one end of the wrench handle. Here, the handle facilitates the hanging placement of the wrench, and the rotation of the gear can drive the tooth block to rotate, so that the rotating plate can rotate.

[0009] Preferably, a sliding strip is fixedly mounted on the surface of the wrench handle, and an anti-slip cover is provided on the surface of the wrench handle. A sliding groove is formed on the inner wall of one end of the anti-slip cover, and a rubber strip is fixedly mounted on the surface of the anti-slip cover. Here, the sliding strip slides within the sliding groove, facilitating the sliding installation of the anti-slip cover. When the user grips the wrench handle, the rubber strip provides a comfortable feeling to the user.

[0010] Preferably, the slide bar is slidably connected to the slide groove, and one end of the anti-slip sleeve is provided with a groove. Here, the sliding connection method is more convenient, and when the anti-slip sleeve is installed, the design of the groove reserves a gap for the handle.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. In the utility model, by setting the forward and reverse motor, the gear and the rotating plate, under the drive of the forward and reverse motor, the gear rotates, the gear engages with the tooth block, and the rotating plate rotates, so that the wrench head automatically rotates and screws the fixed screw and fixes it, releasing manpower, simple operation, saving time and effort, and bringing convenience to users.

[0013] 2. In the present invention, by providing the anti-slip sleeve, the slide bar and the rubber strip, when the forward and reverse motors are rotating, the user holds the handle of the wrench, and the anti-slip sleeve can prevent the user from slipping when holding the handle. The design of the slide bar facilitates the convenient installation of the anti-slip sleeve, and the rubber strip brings comfort to the user when holding the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural diagram of a wrench that saves effort in operation;

[0015] Figure 2The utility model provides a schematic diagram of the explosion structure of a wrench that saves effort in operation;

[0016] Figure 3 A cross-sectional view of a wrench that saves effort in operation is provided for the utility model;

[0017] Figure 4 The utility model proposes a wrench that saves labor to operate Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 The utility model provides a structural schematic diagram of an anti-slip sleeve of a wrench that saves operation effort.

[0019] Legend:

[0020] 1. Wrench handle; 2. Wrench head; 3. Mounting slot; 4. Cylinder; 5. Forward and reverse motor; 6. Rotating shaft; 7. Gear; 8. Rotating hole; 9. Rotating rod; 10. Rotating plate; 11. Tooth block; 12. Guide hole A; 13. Guide hole B; 14. Top cover; 15. Thread block; 16. Thread groove; 17. Round hole; 18. Limiting ring; 19. Limiting ring groove; 20. Control switch; 21. Slide bar; 22. Anti-slip sleeve; 23. Slide groove; 24. Groove; 25. Handle; 26. Rubber strip. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1

[0024] See also Figure 1-2The utility model provides a technical solution: a labor-saving wrench, comprising a wrench handle 1 and a wrench head 2, one end of the wrench handle 1 is fixedly mounted with the wrench head 2, the upper and lower surfaces of the wrench head 2 are provided with mounting grooves 3, a cylinder 4 is fixedly mounted on the side of the wrench handle 1 close to the wrench head 2, a forward and reverse motor 5 is fixedly mounted inside the cylinder 4, a rotating shaft 6 is fixedly mounted on the output end of the forward and reverse motor 5, a gear 7 is fixedly mounted on the surface of the rotating shaft 6, a rotating hole 8 is provided on the surface of the wrench head 2, a circular hole 17 is provided on the surface of the wrench handle 1, and the interior of the mounting groove 3 is rotated It is connected to a rotating plate 10, and a gear block 11 is fixedly installed on the surface of the rotating plate 10. A rotating rod 9 is fixedly installed between the two groups of rotating plates 10. Guide holes A12 and guide holes B13 are respectively opened on the far surfaces of the two groups of rotating plates 10. A control switch 20 is fixedly installed on the surface of the wrench handle 1. The forward and reverse motor 5 drives the rotating shaft 6 to rotate. Under the drive of the forward and reverse motor 5, the gear 7 rotates, and the gear 7 engages with the gear block 11 to rotate the rotating plate 10. The guide holes A12 and the guide holes B13 can be suitable for screws of different sizes. The control switch 20 can control the start and stop of the forward and reverse motor 5.

[0025] See also Figure 1-4 , the rotating shaft 6 is set inside the circular hole 17, the rotating rod 9 is set inside the rotating hole 8, the rotating rod 9 is rotatably connected to the rotating hole 8, the rotating shaft 6 rotates inside the circular hole 17, the rotating rod 9 rotates inside the rotating hole 8, and a top cover 14 is inserted on the top of the cylinder 4. A threaded block 15 is fixedly installed on the surface of the top cover 14 close to the cylinder 4. A threaded groove 16 is opened on the surface of the cylinder 4 close to the top cover 14. The threaded block 15 rotates inside the threaded groove 16. The top cover 14 can be fixed to the top of the cylinder 4 after being twisted to prevent the forward and reverse motor 5 from being exposed to the outside. The design of the top cover 14 To facilitate the installation and disassembly of the forward and reverse motor 5, a limiting collar 18 is fixedly installed on the surface of the rotating rod 9, and a limiting ring groove 19 is provided inside the wrench head 2. The limiting collar 18 is rotatably connected to the limiting ring groove 19. The limiting collar 18 is inside the limiting ring groove 19, so that the rotating rod 9 is more stable and not easy to shake during rotation, thereby ensuring the stable rotation of the rotating plate 10. The gear 7 is engaged with the tooth block 11, and a handle 25 is fixedly installed on one end of the wrench handle portion 1. The handle 25 is convenient for hanging and placing the wrench. The rotation of the gear 7 can drive the tooth block 11 to rotate, so that the rotating plate 10 can rotate.

[0026] Example 2

[0027] See also Figure 1 、 5A sliding strip 21 is fixedly installed on the surface of the wrench handle 1, and an anti-slip cover 22 is provided on the surface of the wrench handle 1. A sliding groove 23 is provided on the inner wall of one end of the anti-slip cover 22, and a rubber strip 26 is fixedly installed on the surface of the anti-slip cover 22. The sliding strip 21 slides inside the sliding groove 23 to facilitate the sliding installation of the anti-slip cover 22. When the user holds the wrench handle 1, the rubber strip 26 brings comfort to the user. The sliding strip 21 is slidably connected to the sliding groove 23, and a groove 24 is provided at one end of the anti-slip cover 22. The sliding connection method is more convenient. When the anti-slip cover 22 is installed, the groove 24 is designed to reserve a gap for the handle 25.

[0028] Working principle: When the user holds the wrench handle 1, the forward and reverse motor 5 is started by the control switch 20. The forward and reverse motor 5 drives the rotating shaft 6 to rotate inside the circular hole 17, and the gear 7 then rotates inside the cylinder 4. The gear 7 then drives the gear block 11 to rotate. The gear block 11 causes the rotating plate 10 and the rotating rod 9 to rotate inside the mounting groove 3 and the rotating hole 8 respectively. At the same time, the limiting collar 18 rotates inside the limiting ring groove 19. The guide holes A12 and the guide holes B13 are convenient for fitting screws of different sizes, so that the wrench head Part 2 automatically rotates and fixes the fixed screws, which saves time and effort. The top cover 14 is fixed to the top of the cylinder 4 by screwing, and the threaded block 15 then rotates inside the threaded groove 16. The top cover 14 prevents the forward and reverse motors 5 from being exposed to the outside. Opening the top cover 14 facilitates the installation and disassembly of the forward and reverse motors 5. In addition, when the forward and reverse motors 5 are rotating, the user holds the handle part 1, and the anti-slip sleeve 22 can prevent the handle part 1 from slipping. The slide bar 21 slides into the slide groove 23, which facilitates the installation of the anti-slip sleeve 22.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A wrench with labor-saving operation, comprising a wrench handle (1) and a wrench head (2), characterized in that: A wrench head (2) is fixedly mounted on one end of the wrench handle (1), and mounting grooves (3) are provided on the upper and lower surfaces of the wrench head (2). A cylinder (4) is fixedly mounted on the side of the wrench handle (1) close to the wrench head (2), and a forward and reverse motor (5) is fixedly mounted inside the cylinder (4). A rotating shaft (6) is fixedly mounted on the output end of the forward and reverse motor (5), and a gear (7) is fixedly mounted on the surface of the rotating shaft (6). There is a rotating hole (8), a circular hole (17) is opened on the surface of the wrench handle part (1), the interior of the mounting groove (3) is rotatably connected with a rotating plate (10), a tooth block (11) is fixedly installed on the surface of the rotating plate (10), a rotating rod (9) is fixedly installed between the two groups of rotating plates (10), and the surfaces of the two groups of rotating plates (10) are respectively opened with a guide hole A (12) and a guide hole B (13), and a control switch (20) is fixedly installed on the surface of the wrench handle part (1).

2. The labor-saving wrench according to claim 1, characterized in that: The rotating shaft (6) is arranged to penetrate the inside of the circular hole (17), the rotating rod (9) is arranged to penetrate the inside of the rotating hole (8), and the rotating rod (9) is rotatably connected to the rotating hole (8).

3. The labor-saving wrench according to claim 1, characterized in that: A top cover (14) is inserted into the top of the cylinder (4), a threaded block (15) is fixedly mounted on the surface of the top cover (14) close to the cylinder (4), and a threaded groove (16) is provided on the surface of the cylinder (4) close to the top cover (14).

4. The labor-saving wrench according to claim 1, characterized in that: A limiting collar (18) is fixedly mounted on the surface of the rotating rod (9), a limiting ring groove (19) is provided inside the wrench head (2), and the limiting collar (18) is rotatably connected to the limiting ring groove (19).

5. The labor-saving wrench according to claim 1, characterized in that: The gear (7) is meshed with the tooth block (11), and a handle (25) is fixedly mounted on one end of the wrench handle portion (1).

6. The labor-saving wrench according to claim 1, characterized in that: A sliding strip (21) is fixedly mounted on the surface of the wrench handle portion (1), an anti-slip sleeve (22) is sleeved on the surface of the wrench handle portion (1), a sliding groove (23) is provided on the inner wall of one end of the anti-slip sleeve (22), and a rubber strip (26) is fixedly mounted on the surface of the anti-slip sleeve (22).

7. The labor-saving wrench according to claim 6, characterized in that: The slide bar (21) is slidably connected to the slide groove (23), and a groove (24) is formed at one end of the anti-slip sleeve (22).

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