An adjustable bolt wrench

Abstract

The utility model relates to the field of hardware tools, concretely is a kind of adjustable bolt wrench, including adjusting seat, bolt adjusting groove for accommodating bolt is opened in adjusting seat, along bolt adjusting groove radial, adjusting seat is also opened six groups and the sliding block groove that is linked with bolt adjusting groove cavity intercommunication, each sliding block groove is correspondingly provided with wrench sliding block, and after being driven by power source, it is synchronously along bolt adjusting groove radial and sliding block groove sliding fit, the end face of each wrench sliding block in bolt adjusting groove is mutually enclosed and forms regular hexagon limit slot, while the side length of limit slot is adjusted, at least one group of locking bolt arranged along the length direction of sliding block groove is provided on adjusting seat, locking bolt is inserted into sliding block groove after being screwed with adjusting seat, and one end of locking bolt and wrench sliding block in sliding block groove abuts against limit position. The wrench of the utility model can adjust clamping size while hexagonal clamping of bolt or nut, to adapt to bolt or nut of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of hardware tools, specifically an adjustable bolt wrench. Background Technology

[0002] Wrenches are common hardware tools used in daily life for tightening bolts or nuts. Common wrenches include adjustable wrenches and hex wrenches. Taking an adjustable wrench as an example, its jaws consist of a fixed jaw and a movable jaw, along with a worm gear and an adjustment knob forming the worm wheel structure. By rotating the adjustment knob, the worm gear moves the movable jaw back and forth, thus widening or narrowing the jaws to accommodate different sized nuts. However, the adjustment method of an adjustable wrench only involves clamping the bolt or nut on opposite sides with two parallel planes. All the torque is concentrated on two corners and two sides. When excessive force is applied, the edges of the bolt or nut can easily be rounded, leading to damage, and there is a risk of slippage, resulting in poor stability. Hex wrenches, on the other hand, are completely different. They have an internal socket with a hexagonal cavity that completely encloses all six sides of the bolt or nut. Because there are six points of force application, greater torque can be applied, resulting in better stability. However, compared to an adjustable wrench, it can only tighten bolts and nuts of a specific size. Therefore, how to make a wrench both adjustable (to accommodate bolts and nuts of different sizes) and highly stable (to create multiple stress points on bolts and nuts) has become a technical problem that urgently needs to be solved. Utility Model Content

[0003] To avoid and overcome the technical problems existing in the prior art, this utility model provides an adjustable bolt wrench. This wrench, while hexagonally clamping bolts or nuts, also allows for adjustment of the clamping size to accommodate bolts or nuts of different sizes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An adjustable bolt wrench includes an adjusting seat with a bolt adjusting groove for accommodating bolts. Along the radial direction of the bolt adjusting groove, the adjusting seat also has six sets of sliding grooves communicating with the groove cavity. Each sliding groove contains a corresponding wrench slider, which, driven by a power source, slides synchronously with the sliding groove along the radial direction of the bolt adjusting groove. The end faces of each wrench slider within the bolt adjusting groove enclose each other to form a hexagonal limiting groove. As the wrench slider slides along the sliding groove, the side length of the limiting groove is adjusted. The adjusting seat has at least one set of locking bolts arranged along the length of the sliding groove. After the locking bolts are threaded into the adjusting seat, they are inserted into the sliding groove, and the locking bolts abut against and limit the movement of one end of the wrench slider within the sliding groove.

[0005] As a further embodiment of this utility model: each wrench slider is provided with an adjusting pin, the axis of the adjusting pin is parallel to the axis of the adjusting seat; the power source is an adjusting disc that rotates coaxially with the adjusting seat, and the adjusting disc is provided with a pin guide groove corresponding to the number and position of the wrench sliders. The adjusting pin of each wrench slider is inserted into the pin guide groove. When the adjusting disc rotates, the adjusting pin is pushed to slide along the slider groove through the pin guide groove.

[0006] As a further improvement of this utility model: the pin guide groove is an arc-shaped groove, the arc axis of the pin guide groove is not coaxial with the axis of the adjusting seat, and the diameter of the adjusting pin corresponds to the groove width of the pin guide groove.

[0007] As a further improvement of this utility model: a bolt through groove is provided at the axis of the adjusting plate for the bolt to be tightened to pass through, and the bolt adjusting groove is located within the projection range of the bolt through groove along the axial direction of the adjusting plate.

[0008] As a further embodiment of this utility model: the adjusting seat, adjusting plate, and cover plate are arranged sequentially from bottom to top. The adjusting seat has cover plate bolt holes evenly spaced along the direction parallel to the axis of the adjusting plate. The adjusting plate has an arc-shaped cover plate bolt guide groove. The arc axis of the cover plate bolt guide groove is coaxial with the adjusting plate. The cover plate bolts on the cover plate pass through the cover plate bolt guide groove and are screwed and fixed to the cover plate bolt holes on the adjusting seat. The cover plate bolt guide groove and the pin guide groove are positioned to avoid each other. The cover plate has an axial hole, and the size of the hole corresponds to the size of the bolt through groove of the adjusting plate.

[0009] As a further improvement of this utility model: the bolt adjustment groove is a regular hexagonal groove, and the groove length direction of each pin guide groove is perpendicular to the corresponding groove wall of the bolt adjustment groove.

[0010] As a further improvement of this utility model: the outer ring of the adjusting seat is integrally connected to a handle along the radial direction, and the gripping end of the handle is provided with anti-slip texture.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model involves inserting the bolt to be tightened into the bolt adjustment groove and rotating the adjustment disc. The adjustment disc pushes the adjusting pins of each wrench slider through the pin guide groove, causing the wrench sliders to slide along the slider groove until the end face of each wrench slider clamps the end face of the bolt to be tightened. Then, the locking bolt is tightened to press the wrench sliders firmly, preventing them from sliding further. Subsequently, torque is applied by gripping the handle to tighten or loosen the bolt. While the wrench provides hexagonal clamping for the bolt or nut, the clamping size can also be adjusted to accommodate bolts or nuts of different sizes, combining adjustable functionality with high stability.

[0012] 2. In this utility model, while the adjusting disc rotates, all the wrench sliders can be driven to slide synchronously through the guide groove of the pin, thereby firmly wrapping the hexagon of the bolt and forming a complete regular hexagonal limit, providing a better torque transmission effect. The rotational motion is converted into the linear motion of the slider through the cooperation of the pin and the guide groove. The wrench diameter can be quickly adjusted by simply rotating the adjusting disc, which is convenient to operate. After adjusting to the required size, the locking bolt can quickly tighten the wrench slider and lock it firmly, preventing the wrench slider from moving backward when tightening the bolt, thus improving the stability of the working state.

[0013] 3. The adjusting seat, adjusting disc and cover plate of this utility model adopt a stacked design. The cover plate is fixed by bolts and guide grooves, which ensures that the adjusting disc can rotate flexibly without interfering with the cover plate bolts, and facilitates installation and disassembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the adjusting seat in this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the adjustment disc in this utility model.

[0017] Figure 4 This is a schematic diagram of the state during the adjustment process of this utility model.

[0018] In the picture: 1. Handle; 11. Anti-slip texture; 2. Adjusting seat; 21. Slider groove; 22. Wrench slider; 23. Adjusting pin; 24. Bolt adjustment groove; 25. Cover plate bolt hole; 26. Locking bolt; 3. Adjusting disc; 31. Pin guide groove; 32. Cover plate bolt guide groove; 33. Bolt through groove; 4. Cover plate; 41. Cover plate bolts. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4In this embodiment of the utility model, an adjustable bolt wrench has a handle 1 and an adjusting seat 2 integrally formed and fixed. The adjusting seat 2 is a columnar seat with a bolt adjustment groove 24 at its axis to accommodate the bolt to be adjusted. The bolt adjustment groove 24 can be a circular groove or a regular hexagonal groove. In this embodiment, the bolt adjustment groove 24 is a regular hexagonal groove, and its size is the maximum bolt size that the wrench can adjust. The gripping end of the handle 1 has anti-slip texture 11, and the handle 1 is a metal handle.

[0021] Along the direction perpendicular to the groove wall of each bolt adjustment groove 24, the adjusting seat 2 has six sets of slider grooves 21 corresponding to each other. Each slider groove 21 is provided with a wrench slider 22 corresponding to the width of the slider groove 21. The wrench slider 22 has a block structure, and its end face that inserts into the groove cavity of the bolt adjustment groove 24 forms a clamping surface for the bolt. Each wrench slider 22 is fixed with an adjusting pin 23 arranged parallel to the axis of the adjusting seat 2. By pushing the adjusting pin 23 and the wrench slider 22 to slide along the slider groove 21, the side length of the regular hexagonal limiting space enclosed by the end faces of each wrench slider 22 is adjusted, thereby accommodating bolts of different sizes to be tightened.

[0022] At least one set of locking bolts 26 is radially arranged on the outer wall of the adjusting seat 2. The locking bolts 26 are arranged along the length of one set of slider grooves 21. The locking bolts 26 themselves are threaded into the outer wall of the adjusting seat 2. By tightening the locking bolts 26, they are made to move along the length of the slider grooves 21 until they abut against the wrench slider 22. When the wrench slider 22 is adjusted to the set position, the locking bolts 26 press the wrench slider 22 to prevent the wrench slider 22 from retracting when the wrench is tightened. Since all wrench sliders 22 move synchronously, only one set of locking bolts 26 is provided in this embodiment. The locking bolts 26 and the handle 1 are arranged in the same straight line direction, and the locking bolts 26 and the cover plate bolts 41 are positioned to avoid each other. To improve stability, multiple sets of locking bolts 26 can be provided, each corresponding to a position of a wrench slider 22.

[0023] In this embodiment, the power source for the adjusting pin 23 is the adjusting disc 3. A columnar sleeve can be provided on the outer ring of the adjusting disc 3 to increase the area for easy screwing. The adjusting disc 3 and the adjusting seat 2 are coaxially rotated together. The adjusting disc 3 has a pin guide groove 31 corresponding to the number of wrench sliders 22. The adjusting pin 23 is inserted into the pin guide groove 31. When the adjusting disc 3 rotates, the adjusting pin 23 is pushed by the groove wall of the pin guide groove 31, which drives the wrench slider 22 to slide along the slider groove 21, so as to realize the continuous adjustment of the side length of the regular hexagonal limiting space formed by the end faces of each wrench slider 22.

[0024] The pin guide groove 31 is an arc-shaped groove, and its arc axis is not coaxial with the axis of the adjusting seat 2, ensuring that the adjusting plate 3 can effectively push the adjusting pin 23 to move when it rotates. The diameter of the adjusting pin 23 matches the groove width of the pin guide groove 31 to ensure smooth transmission. The pin guide groove 31 can also be set as a straight inclined groove, which can drive the adjusting pin 23 to slide when the adjusting plate 3 rotates. A bolt through groove 33 is opened at the axis of the adjusting plate 3, allowing bolts of different sizes to pass through and enter the bolt adjusting groove 24. The size of the bolt through groove 33 is larger than the size of the bolt adjusting groove 24.

[0025] To secure the adjusting disc 3, the adjusting base 2, adjusting disc 3, and cover plate 4 are arranged sequentially from bottom to top. The adjusting base 2 has cover plate bolt holes 25, and the adjusting disc 3 has an arc-shaped cover plate bolt guide groove 32, the arc axis of which coincides with the axis of the adjusting disc 3. The cover plate bolt 41 on the cover plate 4 passes through the cover plate bolt guide groove 32 and is screwed into the cover plate bolt hole 25 on the adjusting base 2. When the adjusting disc 3 rotates, the cover plate bolt 41 slides along the cover plate bolt guide groove 32 to avoid positional interference during rotation. The locking bolt 26 is positioned opposite the cover plate bolt 41. A bolt through groove 33 is also provided at the axial center of the cover plate 4 for the bolt to be screwed through.

[0026] In use, insert the bolt to be tightened into the bolt adjustment slot 24 and rotate the adjustment disc 3. The adjustment disc 3 pushes the adjusting pins 23 of each wrench slider 22 through the pin guide groove 31, causing the wrench slider 22 to slide along the slider groove 21 until the end face of each wrench slider 22 clamps the end face of the bolt to be tightened. Then, tighten the locking bolt 26 to press the wrench slider 22 firmly, preventing it from sliding further. Subsequently, apply torque through the handle 1 to tighten or loosen the bolt.

[0027] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0028] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

Claims

1. An adjustable bolt wrench, characterized in that, The system includes an adjusting seat (2), which has a bolt adjusting groove (24) for accommodating bolts. Along the radial direction of the bolt adjusting groove (24), the adjusting seat (2) also has six sets of sliding grooves (21) that communicate with the groove cavity of the bolt adjusting groove (24). Each sliding groove (21) is equipped with a corresponding wrench slider (22), which, when driven by a power source, slides synchronously with the sliding groove (21) along the radial direction of the bolt adjusting groove (24). Each wrench slider (22) is located at the bolt adjusting groove. The end faces of the joint groove (24) enclose each other to form a regular hexagonal limiting groove. While the wrench slider (22) slides along the slider groove (21), the side length of the limiting groove is adjusted. At least one set of locking bolts (26) arranged along the length of the slider groove (21) is provided on the adjusting seat (2). After the locking bolts (26) are threadedly engaged with the adjusting seat (2), they are inserted into the slider groove (21). The locking bolts (26) and the end of the wrench slider (22) located in the slider groove (21) abut against each other for a limiting position.

2. An adjustable bolt wrench according to claim 1, characterized in that, Each wrench slider (22) is provided with an adjusting pin (23), the axis of the adjusting pin (23) is parallel to the axis of the adjusting seat (2); the power source is an adjusting disc (3) that rotates coaxially with the adjusting seat (2), the adjusting disc (3) is provided with a pin guide groove (31) corresponding to the number and position of the wrench sliders (22), the adjusting pin (23) of each wrench slider (22) is inserted into the pin guide groove (31), and while the adjusting disc (3) rotates, it pushes the adjusting pin (23) to slide along the slider groove (21) through the pin guide groove (31).

3. An adjustable bolt wrench according to claim 2, characterized in that, The pin guide groove (31) is an arc-shaped groove. The arc axis of the pin guide groove (31) is not coaxial with the axis of the adjusting seat (2). The diameter of the adjusting pin (23) corresponds to the groove width of the pin guide groove (31).

4. An adjustable bolt wrench according to claim 2, characterized in that, The adjusting plate (3) has a bolt through groove (33) for the bolt to be turned through at the axis of the adjusting plate (3), and the bolt adjustment groove (24) is located within the projection range of the bolt through groove (33) along the axis of the adjusting plate (3).

5. An adjustable bolt wrench according to any one of claims 2 to 4, characterized in that, The adjusting seat (2), adjusting plate (3) and cover plate (4) are arranged sequentially from bottom to top. The adjusting seat (2) is provided with cover plate bolt holes (25) evenly spaced along the direction parallel to the axis of the adjusting plate (3). The adjusting plate (3) is provided with an arc-shaped cover plate bolt guide groove (32). The arc axis of the cover plate bolt guide groove (32) is coaxial with the adjusting plate (3). The cover plate bolt (41) on the cover plate (4) passes through the cover plate bolt guide groove (32) and is screwed and fixed to the cover plate bolt hole (25) on the adjusting seat (2). The cover plate bolt guide groove (32) and the pin guide groove (31) are positioned to avoid each other. The cover plate (4) has an axial hole, and the hole size corresponds to the bolt through groove (33) size of the adjusting plate (3).

6. An adjustable bolt wrench according to any one of claims 1 to 5, characterized in that, The bolt adjustment groove (24) is a regular hexagonal groove, and the groove length direction of each pin guide groove (31) is perpendicular to the corresponding groove wall of the bolt adjustment groove (24).

7. An adjustable bolt wrench according to any one of claims 1 to 5, characterized in that, The outer ring of the adjusting seat (2) is integrally connected to the handle (1) along the radial direction, and the gripping end of the handle (1) is provided with anti-slip texture (11).

Images