Wrench with length-adjustable wrench handle

Abstract

The wrench handle length adjusting type wrench comprises an extension rod, an adjusting assembly is installed on one side of the surface of the extension rod, a wrench opening is fixedly connected to one end of the extension rod, a port is slidably connected to the surface of the extension rod, and first adjusting shafts are fixedly connected to the two sides of the port correspondingly; the two ends of the two first adjusting shafts are both rotationally connected with supporting assemblies, one end of each supporting assembly is movably connected with a telescopic assembly, and one end of the end opening is connected with a protective cover in a clamped mode. A worker only needs to carry the wrench to flexibly adjust the length of the handle according to actual conditions, the adjusting assembly is additionally arranged at the wrench opening, and after the sliding push rod is moved, the wrench is fixed through the elevation nut, so that the wrench can be matched with a bolt with the diameter similar to that of the wrench opening, and the wrench can be used in all directions. And the working convenience and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, specifically to a wrench with an adjustable handle length. Background Technology

[0002] A wrench is a common tool for installation and disassembly. It is a hand tool that uses leverage to tighten or loosen bolts, screws, nuts, and other threaded fasteners by using an opening or socket to hold the bolt or nut. Wrenches typically have openings or sockets at one or both ends of the handle to hold the bolt or nut. When in use, external force is applied to the handle in the direction of thread rotation to tighten or loosen the bolt or nut. However, existing traditional wrenches have significant limitations: the handle and the jaw are fixedly connected, and the length cannot be adjusted.

[0003] In actual repair work, because wrench lengths are fixed, workers often need to carry multiple wrenches of different lengths, which is not only inconvenient to carry but also increases the load. Moreover, frequently changing wrenches of different sizes during operation consumes a lot of time and reduces work efficiency. In addition, the wrench jaw size of traditional wrenches is also fixed, making it impossible to fit bolts with similar diameters, which further prolongs the repair time. Utility Model Content

[0004] The purpose of this invention is to provide a wrench with an adjustable handle length to address the significant limitations of existing traditional wrenches mentioned in the background section. These wrenches have a fixed connection between the handle and the jaw, and the length cannot be adjusted. In actual repair work, because the wrench length is fixed, workers often need to carry multiple wrenches of different lengths, which is not only inconvenient to carry but also increases the load. Furthermore, frequently changing wrenches of different sizes during operation consumes a lot of time and reduces work efficiency. In addition, the jaw size of traditional wrenches is also fixed and cannot be adapted to bolts of other diameters, further extending repair time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wrench with an adjustable handle length, comprising an extension rod, an adjustment component mounted on one side of the extension rod surface, a wrench jaw fixedly connected to one end of the extension rod, a port slidably connected to the surface of the extension rod, first adjustment shafts fixedly connected to both sides of the port, and support components rotatably connected to both ends of the two first adjustment shafts, a telescopic component movably connected to one end of the support component, and a protective cover snapped onto one end of the port, the protective cover being fitted onto the surface of the support component. The extension rod is pushed out via the telescopic component and the support component for easy extension, making it easier for workers to use. This method also allows for length adjustment, making the overall design more complete, and the wrench jaw can be adapted to a similar diameter, eliminating the need for multiple replacements and increasing user adaptability.

[0006] Preferably, the support assembly includes a first support rod, one end of which is rotatably connected to a first adjusting shaft. An opening is provided in the middle of the surface of the first support rod. A tightening assembly is rotatably connected to the surface of one of the first support rods, and a fourth adjusting shaft is rotatably connected to the other end of the first support rod. The tightening assembly can fix the whole assembly to prevent shaking and instability. The first support rod can be folded and extended by pulling it. The folding and extension of the extension handle can meet the usage requirements and improve the functionality.

[0007] Preferably, the support assembly includes a first support rod, one end of which is rotatably connected to a first adjusting shaft. An opening is provided in the middle of the surface of the first support rod. A tightening assembly is rotatably connected to the surface of one of the first support rods, and a fourth adjusting shaft is rotatably connected to the other end of the first support rod. This increases the stability during extension and retraction, and allows for two extension methods, making it convenient for users to use in multiple ways.

[0008] Preferably, the support assembly includes a first support rod, one end of which is rotatably connected to a first adjusting shaft. An opening is provided in the middle of the surface of the first support rod. A tightening assembly is rotatably connected to the surface of one of the first support rods, and a fourth adjusting shaft is rotatably connected to the other end of the first support rod. By using one of the extension methods, the extension rod can be protected.

[0009] Preferably, the other end of the extension rod is rotatably connected to the first adjustment rod and the second adjustment rod via a third adjustment shaft and a second adjustment shaft, respectively. This rotation method increases the user's flexibility in folding the tool.

[0010] Preferably, the adjusting component includes a sliding groove, a sliding push rod is slidably connected inside the sliding groove, one end of the sliding push rod passes through an extension rod and is fixedly connected to a pressing plate, a bolt is threadedly connected to the surface of the sliding push rod, a washer is sleeved on the surface of the bolt, and an angled nut is threadedly connected to the surface of the bolt. When the angled bolt presses the washer, it can generate uniform and large pressure between the connecting components, so that the components fit tightly and effectively prevent relative displacement.

[0011] Preferably, the third and second adjusting shafts are movably connected to the opening to facilitate fixing during folding and prevent movement.

[0012] Compared with existing technologies, the advantages of this utility model are as follows: The wrench handle adopts an innovative adjustable length design, which achieves length adjustment through the mutual rotation between the supporting components. It has two telescopic adjustment methods to meet the needs of different scenarios. Workers only need to carry this one wrench to flexibly adjust the handle length according to the actual situation. In addition, an adjustment component is added to the wrench mouth. After moving the sliding push rod, it is fixed by the angle nut. In this way, the wrench can be adapted to bolts with a diameter similar to that of the wrench mouth hole, so one wrench can achieve all-round use, greatly improving the convenience and efficiency of work. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the wrench of this utility model;

[0014] Figure 2 This is a schematic diagram of the extended handle end structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the unfolded structure of the wrench of this utility model;

[0016] Figure 4 This is a schematic diagram of the plate opening diameter adjustment component of this utility model.

[0017] In the diagram: 1. Lever; 2. Adjustment assembly; 3. Port; 4. Support assembly; 5. Telescopic assembly; 6. Extension rod; 7. First adjustment shaft; 8. First support rod; 9. Opening; 10. Fastening assembly; 11. First adjustment rod; 12. Second adjustment rod; 13. Angle nut; 14. Second adjustment shaft; 15. Third adjustment shaft; 16. Bolt; 17. Washer; 18. Sliding groove; 19. Protective cover; 20. Sliding push rod; 21. Extrusion plate; 22. Fourth adjustment shaft. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figure 1-4This utility model provides a wrench with adjustable handle length, including an extension rod 6. An adjustment component 2 is installed on one side of the surface of the extension rod 6. A wrench mouth 1 is fixedly connected to one end of the extension rod 6. A port 3 is slidably connected to the surface of the extension rod 6. First adjustment shafts 7 are fixedly connected to both sides of the port 3. Support components 4 are rotatably connected to both ends of the two first adjustment shafts 7. A telescopic component 5 is movably connected to one end of the support component 4. A protective cover 19 is engaged with one end of the port 3 and is sleeved on the surface of the support component 4. One end of the extension rod 6 is rotatably connected to one end of the telescopic component 5. The port 3 is slidably connected to the surface of the extension rod 6. The support component 4 is movably connected to one end of the port 3. The extension rod 6 is located inside the support component 4 and the telescopic component 5.

[0020] In use, the support assembly 4 includes a first support rod 8, one end of which is rotatably connected to a first adjusting shaft 7. An opening 9 is provided in the middle of the surface of the first support rod 8. A tightening assembly 10 is rotatably connected to the surface of one of the first support rods 8, and a fourth adjusting shaft 22 is rotatably connected to the other end of the first support rod 8. The tightening assembly 10 is opened by rotation, and the two first support rods 8 are pulled, which can be adjusted according to the two first adjusting shafts 7.

[0021] In use, the telescopic assembly 5 includes a first adjusting rod 11 and a second adjusting rod 12. One end of the first adjusting rod 11 is movably connected to a third adjusting shaft 15, and one end of the second adjusting rod 12 is movably connected to a second adjusting shaft 14. One end of the first adjusting rod 11 and one end of the second adjusting rod 12 are respectively rotatably connected to the first support rod 8 via a fourth adjusting shaft 22. The extension rod 6 is located inside the two first support rods 8, the first adjusting rod 11, and the second adjusting rod 12. The other end of the extension rod 6 is rotatably connected to the first adjusting rod 11 and the second adjusting rod 12 via the third adjusting shaft 15 and the second adjusting shaft 14, respectively. By rotating, the first adjusting rod 11 and the second adjusting rod 12 can drive the second adjusting shaft 14 and the third adjusting shaft 15 at one end of the first adjusting rod 11 and the second adjusting rod 12 to rotate, pushing the extension rod 6 outward by rotation, so that the first adjusting rod 11 and the second adjusting rod 12 are movably connected inside the two first support rods 8, and then fixed by the tightening assembly 10.

[0022] In this embodiment of the application, the adjusting component 2 includes a sliding groove 18, and a sliding push rod 20 is slidably connected inside the sliding groove 18. One end of the sliding push rod 20 passes through the extension rod 6 and is fixedly connected to a pressing plate 21. A bolt 16 is threadedly connected to the surface of the sliding push rod 20, a washer 17 is sleeved on the surface of the bolt 16, and an angled nut 13 is threadedly connected to the surface of the bolt 16. When the nut to be tightened is placed on the wrench 1, if the diameters are inconsistent, the pressing plate 21 is brought into contact with the nut by pushing the sliding push rod 20, and the angled nut 13 is turned. The bolt 16 rotates by rotating its threaded surface, pressing against the washer 17 for stability and preventing movement.

[0023] In this embodiment of the application, the third adjusting shaft 15 and the second adjusting shaft 14 are movably connected to the opening 9. When folded, the third adjusting shaft 15 and the second adjusting shaft 14 will correspond to the opening 9 for limiting.

[0024] In use, the wrench in this embodiment has two length adjustment methods, the first being as follows: Figure 2 As shown, the tightening assembly 10 is opened by rotation, pulling the two first support rods 8. The two first support rods 8 are unfolded via the first adjusting shaft 7, which simultaneously drives the first adjusting rod 11 and the second adjusting rod 12 to unfold via the fourth adjusting shaft 22. An extension rod 6 is connected to one end of the first adjusting rod 11 and the second adjusting rod 12 via the rotation of the second adjusting shaft 14 and the third adjusting shaft 15. The extension rod 6 is slid out through the port 3 by rotation, and the second adjusting shaft 14 and the third adjusting shaft 15 will engage inside the opening 9. The tightening assembly 10 fixes the two first support rods 8 in place. The protective cover 19 is then placed on top and engaged with the port 3, making the surface smooth and easy for workers to use. The second method is as follows. Figure 1 As shown, the tightening assembly 10 is opened by rotation, and the first adjusting rod 11 and the second adjusting rod 12 are pulled out from the two first support rods 8. The extension rod 6 will retract through the port 3 and can be used to fix the tightening assembly 10. When the size of the nuts is different, the sliding push rod 20 can be pushed to abut against the compression plate 21. When in contact, the angle nut 13 can be tightened to fix the compression washer 17 through the bolt 16 to prevent movement during tightening. The user can adjust the nuts that need to be tightened or loosened by turning the handle.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wrench with an adjustable handle length, comprising an extension rod (6), characterized in that: An adjustment component (2) is installed on one side of the surface of the extension rod (6). A lever (1) is fixedly connected to one end of the extension rod (6). A port (3) is slidably connected to the surface of the extension rod (6). A first adjustment shaft (7) is fixedly connected to both sides of the port (3). A support component (4) is rotatably connected to both ends of the two first adjustment shafts (7). A telescopic component (5) is movably connected to one end of the support component (4). A protective cover (19) is engaged with one end of the port (3), and the protective cover (19) is sleeved on the surface of the support component (4).

2. The wrench with adjustable handle length according to claim 1, characterized in that: The support assembly (4) includes a first support rod (8), one end of which is rotatably connected to a first adjusting shaft (7). An opening (9) is provided in the middle of the surface of the first support rod (8). A tightening assembly (10) is rotatably connected to the surface of one of the first support rods (8), and a fourth adjusting shaft (22) is rotatably connected to the other end of the first support rod (8).

3. The wrench with adjustable handle length according to claim 2, characterized in that: The telescopic assembly (5) includes a first adjusting rod (11) and a second adjusting rod (12). One end of the first adjusting rod (11) is movably connected to a third adjusting shaft (15), and one end of the second adjusting rod (12) is movably connected to a second adjusting shaft (14).

4. The wrench with adjustable handle length according to claim 3, characterized in that: One end of the first adjusting rod (11) and one end of the second adjusting rod (12) are rotatably connected to the first support rod (8) through the fourth adjusting shaft (22), and the extension rod (6) is located inside the two first support rods (8), the first adjusting rod (11) and the second adjusting rod (12).

5. A wrench with an adjustable handle length according to claim 4, characterized in that: The other end of the extension rod (6) is rotatably connected to the first adjustment rod (11) and the second adjustment rod (12) via the third adjustment shaft (15) and the second adjustment shaft (14) respectively.

6. The wrench with adjustable handle length according to claim 1, characterized in that: The adjustment assembly (2) includes a sliding groove (18), and a sliding push rod (20) is slidably connected inside the sliding groove (18). One end of the sliding push rod (20) passes through the extension rod (6) and is fixedly connected to a pressing plate (21). A bolt (16) is threadedly connected to the surface of the sliding push rod (20). A washer (17) is sleeved on the surface of the bolt (16). An angle nut (13) is threadedly connected to the surface of the bolt (16).

7. A wrench with an adjustable handle length according to claim 3, characterized in that: The third adjusting shaft (15) and the second adjusting shaft (14) are movably connected to the opening (9).

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