Double-end wrench

Abstract

The utility model discloses a double-end wrench, which relates to the field of mechanical maintenance and comprises a wrench main body, a pair of wrench grooves are symmetrically arranged at two ends of the wrench main body, a sliding groove is arranged on the wrench main body, the sliding groove is communicated with the wrench grooves, and a fixing rod is arranged in the sliding groove in a sliding mode. The two ends of the fixing rod are provided with a pair of connecting rods matched with the wrench grooves, the ends, close to the wrench grooves, of the connecting rods extend into the wrench grooves, and a pair of fixing grooves are symmetrically formed in the positions, in the sliding groove, of the center of the wrench body. The fixing rod and the connecting rod which can slide are arranged at the two ends of the wrench body, the connecting rod can move in the wrench groove, the extending distance is adjusted according to the diameter of a part, the adaptability of the wrench to the parts of different sizes is effectively improved through the design, carrying of multiple wrenches is avoided, time and energy are saved, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical repair, specifically a double-ended wrench. Background Technology

[0002] In modern industrial production and machinery maintenance, the efficiency and applicability of tools are crucial. With the rapid development of manufacturing, the specifications of parts are becoming increasingly diverse, placing higher demands on the versatility and convenience of tools. Double-ended wrenches, as commonly used tightening and loosening tools, are widely used in various engineering scenarios, and their performance directly affects work efficiency and operational safety.

[0003] Currently, most double-ended wrenches on the market have a relatively fixed structure, with the wrench slot size pre-set. When dealing with parts of different diameters, users often need to prepare multiple wrenches of different sizes. This not only increases the difficulty of carrying and managing tools, but also wastes a lot of time and reduces work efficiency during frequent tool changes. To address this, an adjustable double-ended wrench has emerged on the market, which controls the size of the wrench slot through threads to adapt to the size of the parts.

[0004] However, existing double-ended wrenches are difficult to use for precise positioning and stable operation when dealing with parts of different sizes, requiring repeated adjustments and making the operation cumbersome. At the same time, the lack of a convenient adjustment mechanism makes adjusting the wrench to fit the part complicated and inefficient. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a double-ended wrench to solve the technical problems of poor compatibility and difficulty in adjustment of existing double-ended wrenches.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-ended wrench, comprising a wrench body, a pair of wrench grooves symmetrically formed at both ends of the wrench body, a sliding groove formed on the wrench body, the sliding groove communicating with the wrench grooves, a fixed rod sliding within the sliding groove, a pair of connecting rods provided at both ends of the fixed rod in conjunction with the pair of wrench grooves, the end of the connecting rod near the wrench groove extending into the wrench groove, a pair of fixed grooves symmetrically formed at the center of the wrench body within the sliding groove, a limiting plate installed within the fixed groove, a guide groove formed on the limiting plate, an installation groove formed at the top of the fixed rod, a button installed within the installation groove, the top of the button extending to the limiting plate through the guide groove.

[0007] By adopting the above technical solution, the effect of adjusting the movement of the fixed rod and thus adjusting the position of the connecting rod can be achieved according to the needs.

[0008] The present invention is further configured such that a connecting block is provided at one end of the fixing rod near the connecting rod, and a slot is provided at one end of the connecting rod near the fixing rod in conjunction with the connecting block. A connecting hole is provided at the corresponding position of the connecting block and the slot, and a second fixing bolt is provided in the connecting hole.

[0009] By adopting the above technical solution, a fixed connection between the connecting rod and the fixed rod can be achieved.

[0010] The present invention is further configured such that a pair of guide grooves are symmetrically opened on both sides of the connecting rod, and a guide block is provided on the inner wall of the sliding groove in cooperation with the guide groove.

[0011] By adopting the above technical solution, the stability of the connecting rod movement is ensured by the guide groove and guide block.

[0012] The present invention is further configured such that a plurality of first fixing bolts are provided in the fixing groove in conjunction with the limiting plate, and a plurality of fixing holes are provided on the limiting plate in conjunction with the plurality of first fixing bolts.

[0013] By adopting the above technical solution, the limiting plate is fixed by the first fixing bolt and the fixing hole.

[0014] The present invention is further configured such that a spring is provided at the top of the mounting groove, and a limit groove is provided at the bottom of the button in conjunction with the spring.

[0015] By adopting the above technical solution, the spring is limited, and the spring pushes the button upward in the opposite direction.

[0016] The present invention is further configured such that a plurality of forward-facing locking blocks are provided at the bottom of the limiting plate, and a plurality of reverse-facing locking blocks are provided on both sides of the button in conjunction with the forward-facing locking blocks.

[0017] By adopting the above technical solution, the button is limited, that is, the fixed rod is limited. Only when it is pressed can the fixed rod be moved to adjust the position of the connecting rod.

[0018] In summary, the present invention has the following main advantages:

[0019] This utility model features a wrench with slidable fixed rods and connecting rods at both ends of the wrench body. The connecting rods can move within the wrench groove and adjust the extension distance according to the diameter of the part. This design effectively improves the wrench's adaptability to parts of different sizes, avoids carrying multiple wrenches, saves time and effort, and improves work efficiency.

[0020] This utility model utilizes a structure including buttons, limit plates, and springs to limit and provide feedback on the movement of a fixed rod. When the button is pressed during operation, the spring and the locking block work together to generate resistance and emit an audible alert, allowing users to accurately control the adjustment distance and prevent over-adjustment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is an exploded view of part of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the button installation of this utility model;

[0024] Figure 4 This is a partial structural schematic diagram of the present invention.

[0025] In the diagram: 1. Wrench body; 2. Wrench groove; 3. First fixing bolt; 4. Limiting plate; 5. Button; 6. Second fixing bolt; 7. Connecting rod; 8. Fixing rod; 9. Slot; 10. Guide groove; 11. Connecting block; 12. Spring; 13. Fixing groove; 14. Forward locking block; 15. Mounting groove; 16. Guide block; 17. Fixing hole; 18. Reverse locking block; 19. Limiting groove; 20. Slide groove; 21. Guide groove; 22. Connecting opening. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] A type of double-ended wrench, such as Figure 1-4 As shown, the device includes a wrench body 1, with a pair of wrench grooves 2 symmetrically formed at both ends of the wrench body 1. A sliding groove 20 is formed on the wrench body 1, and the sliding groove 20 communicates with the wrench grooves 2. A fixed rod 8 slides in the sliding groove 20. A pair of connecting rods 7 are provided at both ends of the fixed rod 8 in conjunction with the pair of wrench grooves 2. The end of the connecting rod 7 near the wrench groove 2 extends into the wrench groove 2, and the structure of the wrench groove 2 is used to limit the movement of the parts.

[0029] The fixed rod 8 is provided with a connecting block 11 at one end near the connecting rod 7. The connecting rod 7 is provided with a slot 9 at one end near the fixed rod 8 in conjunction with the connecting block 11. The connecting block 11 and the slot 9 are provided with a connecting opening 22 at corresponding positions. A second fixing bolt 6 is provided in the connecting opening 22. With this arrangement, the fixed rod 8 and a pair of connecting rods 7 are connected. By controlling the fixed rod 8, the connecting rod 7 can be moved in the slide groove 20, thereby controlling the distance the connecting rod 7 extends out of the wrench groove 2. Depending on the different extension distances, it fits the diameter of different parts, thereby processing different parts.

[0030] Specifically, a pair of fixing grooves 13 are symmetrically opened in the sliding groove 20 at the center of the wrench body 1. A limiting plate 4 is installed in the fixing groove 13. A guide groove 21 is opened on the limiting plate 4. An installation groove 15 is opened at the top of the fixing rod 8. A button 5 is installed in the installation groove 15. The top of the button 5 extends to the limiting plate 4 through the guide groove 21. By pushing the button 5, the fixing rod 8 is moved under the limitation of the installation groove 15. At the same time, the button 5 is set through the guide groove 21. The travel distance of the button 5 is limited by the guide groove 21 to prevent the connecting rod 7 from extending too far.

[0031] Furthermore, the bottom of the limiting plate 4 is provided with several forward locking blocks 14, and the sides of the button 5 are provided with several reverse locking blocks 18 in cooperation with the forward locking blocks 14. The forward locking blocks 14 and the reverse locking blocks 18 engage with each other to prevent the movement of the button 5. Furthermore, a spring 12 is provided at the top of the mounting groove 15, and a limiting groove 19 is provided at the bottom of the button 5 in cooperation with the spring 12. In this way, without external force, the spring 12 pushes the button 5 upward, so that the forward locking blocks 14 and the reverse locking blocks 18 engage with each other. When it is necessary to move the fixing rod 8, the button 5 is pressed down, so that the forward locking blocks 14 and the reverse locking blocks 18 are mostly separated, leaving a portion of inclined contact that does not affect movement. In actual operation, each time the button 5 is pushed, a certain amount of resistance is maintained to prevent excessive movement at once. After a certain force is reached, the locking blocks shift, and an audible reminder of the movement distance is emitted, making it convenient for the user to control and adjust details.

[0032] A pair of guide grooves 10 are symmetrically opened on both sides of the connecting rod 7. The inner wall of the sliding groove 20 is provided with a guide block 16 to cooperate with the guide groove 10. The guide block 16 cooperates with the guide groove 10 to make the movement of the connecting rod 7 more stable and prevent directional deviation.

[0033] The fixing groove 13 is fitted with a limiting plate 4 and a plurality of first fixing bolts 3 are provided. The limiting plate 4 is fitted with a plurality of fixing holes 17. The limiting plate 4 and the fixing groove 13 are connected by the first fixing bolts 3 and the fixing holes 17.

[0034] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A double-ended wrench, comprising a wrench body (1), characterized in that: The wrench body (1) has a pair of wrench grooves (2) symmetrically opened at both ends. The wrench body (1) has a sliding groove (20) connected to the wrench groove (2). A fixed rod (8) slides in the sliding groove (20). A pair of connecting rods (7) are provided at both ends of the fixed rod (8) in conjunction with the pair of wrench grooves (2). The end of the connecting rod (7) near the wrench groove (2) extends into the wrench groove (2). A pair of fixed grooves (13) are symmetrically opened at the center of the wrench body (1) in the sliding groove (20). A limiting plate (4) is installed in the fixed groove (13). A guide groove (21) is opened on the limiting plate (4). An installation groove (15) is opened at the top of the fixed rod (8). A button (5) is installed in the installation groove (15). The top of the button (5) extends to the limiting plate (4) through the guide groove (21).

2. A double-ended wrench according to claim 1, characterized in that: The fixed rod (8) is provided with a connecting block (11) at one end near the connecting rod (7). The connecting rod (7) is provided with a slot (9) at one end near the fixed rod (8) in conjunction with the connecting block (11). The connecting block (11) and the slot (9) are provided with a connecting hole (22) at corresponding positions. A second fixing bolt (6) is provided in the connecting hole (22).

3. A double-ended wrench according to claim 1, characterized in that: The connecting rod (7) has a pair of guide grooves (10) symmetrically opened on both sides, and the inner wall of the sliding groove (20) is provided with guide blocks (16) in cooperation with the guide grooves (10).

4. A double-ended wrench according to claim 1, characterized in that: The fixing groove (13) is fitted with a limiting plate (4) and a number of first fixing bolts (3) are provided. The limiting plate (4) is fitted with a number of first fixing bolts (3) and a number of fixing holes (17) are provided.

5. A double-ended wrench according to claim 1, characterized in that: A spring (12) is provided at the top of the mounting groove (15), and a limit groove (19) is provided at the bottom of the button (5) in conjunction with the spring (12).

6. A double-ended wrench according to claim 1, characterized in that: The bottom of the limiting plate (4) is provided with several forward locking blocks (14), and the two sides of the button (5) are provided with several reverse locking blocks (18) in coordination with the forward locking blocks (14).

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