Multifunctional adjustable wrench

Abstract

The utility model discloses a multifunctional adjustable wrench which comprises a wrench body, one end of the wrench body is provided with an outer hexagonal adjusting portion, and the other end of the wrench body is provided with an inner hexagonal adjusting portion. The outer hexagonal adjusting part comprises a hexagonal wrench hole and a movable adjusting plate; the head part of the adjusting plate is provided with a fork opening which can extend into the hexagonal wrench hole and is matched with the hexagonal wrench hole; the inner hexagonal adjusting part is provided with a plurality of hexagonal sleeves arranged in a sleeved mode and a hexagonal column in the middle, the adjacent hexagonal sleeves are in sliding connection, and the hexagonal column and the adjacent hexagonal sleeves are in sliding connection. The first hexagonal sleeve on the outermost side is fixed to the wrench body, and the hexagonal sleeve on the inner side and the hexagonal column can slide out towards the other side of the wrench body relative to the first hexagonal sleeves. By means of the linkage design of the outer hexagonal adjusting part and the inner hexagonal adjusting part, rapid matching of the sizes of nuts and bolts is achieved, a single tool can replace various tools such as a traditional fixed open spanner and a socket spanner, and carrying burden is remarkably reduced.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, and in particular to a multifunctional adjustable wrench. Background Technology

[0002] In the field of mechanical repair and assembly, wrenches are an indispensable and commonly used tool, primarily used for tightening or loosening nuts and bolts. Traditional wrenches are mostly designed with fixed-size openings or sockets, meaning they can only fit nuts and bolts of specific sizes. However, in actual work scenarios, various sizes of nuts and bolts are often encountered, forcing users to carry multiple wrenches of different sizes, undoubtedly increasing the complexity of tool management and the burden of carrying them.

[0003] Currently, adjustable multi-functional wrenches on the market generally rely on manual adjustment of the opening or socket size to accommodate nuts and bolts of different sizes. However, existing adjustable wrenches often involve cumbersome adjustment procedures. For example, with worm gear adjustment mechanisms, when the socket size changes significantly, the worm gear needs to be continuously rotated, making it difficult to quickly and accurately complete the adjustment and causing inconvenience. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a multi-functional adjustable wrench that can quickly adjust the wrench opening size to meet the operational needs of fasteners of different specifications.

[0005] Therefore, the technical solution of this utility model is: a multi-functional adjustable wrench, including a wrench body, one end of the wrench body is provided with an external hexagonal adjustment part, and the other end is provided with an internal hexagonal adjustment part; the external hexagonal adjustment part includes a hexagonal wrench hole and a movable adjustment plate, and the head of the adjustment plate is provided with a fork that can extend into and cooperate with the hexagonal wrench hole;

[0006] The internal hexagonal adjustment part is provided with multiple fitted hexagonal sleeves and a central hexagonal post. Adjacent hexagonal sleeves are slidably connected to each other and to each other. The outermost first hexagonal sleeve is fixed to the wrench body, and the inner hexagonal sleeve and hexagonal post can slide out to the other side of the wrench body relative to the first hexagonal sleeve.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: an adjustment seat extends from the rear of the hexagonal wrench hole. The adjustment seat has a hollow structure and an internal channel through which the adjustment plate can pass. The front end of the channel is connected to one of the inner corners of the hexagonal wrench hole.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the fork is inserted into the hexagonal wrench hole in the forward direction and is directly opposite one of the inner angles of the hexagonal wrench hole, and the included angle of the fork is consistent with the inner angle.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the adjusting seat is provided with a sliding groove, which is located above the channel; the sliding groove is provided with racks on both sides, and a pushing member is provided on the sliding groove. The pushing member is connected to the tail of the adjusting plate, driving the adjusting plate to extend into the hexagonal wrench hole.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the pushing component includes a base plate, a toothed block, a compression spring, and a button. The base plate is provided with a post that connects to the tail of the adjusting plate. The toothed block has toothed structures on both sides that engage with the rack. One end of the compression spring is fixed below the toothed block, and the other end is fixed to the base plate. The button is fixed above the toothed block and can press down on the toothed block to disengage its toothed structure from the rack.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: one end of the wrench body is provided with a mounting port for accommodating the adjustment seat, and the mounting port and the adjustment seat are rotatably connected by a pin, that is, the external hexagonal adjustment part and the wrench body are rotatably connected by a pin.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: In the adjacent hexagonal sleeves, the outer hexagonal sleeve has a vertical slide inside, and the two ends of the slide are provided with limiting rings. The top outer side of the inner hexagonal sleeve is provided with a slider, which can be inserted into the slide and cooperate with the slide.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the hexagonal prism and different numbers of hexagonal sleeves form internal hexagonal structures of different diameters.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The linkage design of the external hexagonal adjustment section and the internal hexagonal adjustment section enables rapid adaptation to nut and bolt sizes. The integrated design of external and internal hexagonal functions allows a single tool to replace multiple tools such as traditional fixed open-end wrenches and socket wrenches, significantly reducing the burden of carrying them.

[0016] 2. The fork of the external hexagon adjustment unit precisely matches the hexagonal wrench hole. Combined with the rack and pinion linkage mechanism of the pusher, the adjustment plate position can be quickly locked or released, avoiding the cumbersome operation of traditional worm gear adjustment. The internal hexagon adjustment unit adopts a multi-layer sliding sleeve structure. Through the slide rail limit design, it can flexibly combine different diameter internal hexagon specifications, significantly reducing the frequency of tool changes.

[0017] 3. The wrench body features a rotatable external hexagonal adjustment section and a hexagonal socket with a sliding track, significantly improving tool compatibility. The adjustment base is rotatably connected to the wrench body via a pin, supporting multi-angle rotation of the external hexagonal adjustment section for easy operation in confined spaces; the sliding track limit ring design of the internal hexagonal socket ensures stable sliding and avoids the risk of dislodgement.

[0018] 4. The rack and pinion mechanism is made of high-strength materials and features a self-locking function via a spring and button, ensuring a secure engagement after adjustment and preventing slippage or loosening. The nested structure of the internal hexagonal sleeve, with its precise slider-slide mechanism, enhances impact resistance and is suitable for high-intensity working environments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Example 1;

[0020] Figure 2 This is a front view of the structure of Example 1;

[0021] Figure 3 This is a schematic diagram of the external hexagonal adjustment part in Example 1;

[0022] Figure 4 This is a schematic diagram of the operation of the external hexagonal adjustment part in Example 1;

[0023] Figure 5 This is a side view of the structure of Embodiment 1;

[0024] Figure 6 This is a schematic diagram of the pressing action of the pusher in Example 1;

[0025] Figure 7 This is a schematic diagram of the fit between the toothed block and the sliding groove in Example 1;

[0026] Figure 8 This is a cross-sectional view of the internal hexagon adjustment part in Example 1;

[0027] Figure 9 This is a diagram showing the usage state of the internal hexagon adjustment part in Example 1;

[0028] Figure 10 This is a schematic diagram of the structure of Example 2;

[0029] Figure 11 This is a schematic diagram of the rotation in Example 2.

[0030] The components in the diagram are labeled as follows: wrench body 1, mounting port 11, external hexagonal adjustment part 2, adjustment seat 21, hexagonal wrench hole 22, adjustment plate 23, fork 24, slide groove 25, rack 26, pusher 27, base plate 271, toothed block 272, compression spring 273, button 274, insert 275, toothed structure 276, internal hexagonal adjustment part 3, first hexagonal sleeve 31, first limiting ring 311, second limiting ring 312, second hexagonal sleeve 32, third hexagonal sleeve 33, fourth hexagonal sleeve 34, hexagonal column 35, slide rail 36, slider 37, fastener 4, pin 5. Detailed Implementation

[0031] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0033] Example 1

[0034] The multi-functional adjustable wrench described in this embodiment includes a wrench body 1. The wrench body 1 is made of high-strength alloy steel (such as 42CrMo), and is quenched and tempered to achieve a hardness of HRC45-50, thus balancing wear resistance and impact resistance. One end of the wrench body 1 is provided with an external hexagonal adjustment part 2, and the other end is provided with an internal hexagonal adjustment part 3.

[0035] The external hexagonal adjustment part 2 includes an adjustment seat 21, with a hexagonal wrench hole 22 at its front end. The adjustment seat 21 is hollow, with an internal channel through which an adjustment plate 23 can pass, and the front end of the channel connects to one of the inner corners of the hexagonal wrench hole 22. The head of the adjustment plate 23 has a fork 24 that can extend into and cooperate with the hexagonal wrench hole. The fork 24 is inserted into the hexagonal wrench hole 22 facing forward and directly opposite one of the inner corners of the hexagonal wrench hole 22, and the included angle of the fork 24 is consistent with the inner corner. The included angle and the two sides of the fork 24 can form a new clamping position with the inner corner and the side of the hexagonal wrench hole 22, which can accommodate bolts of different sizes.

[0036] The adjusting seat 21 is provided with a sliding groove 25, which is located above the channel; the sliding groove 25 is provided with racks 26 on both sides, and a pusher 27 is provided on the sliding groove 25. The pusher 27 is connected to the tail of the adjusting plate 23, driving the adjusting plate 23 to extend into the hexagonal wrench hole 22.

[0037] The pusher 27 includes a base plate 271, a toothed block 272, a compression spring 273, and a button 274. The base plate 271 has a post 275 connected to the tail of the adjusting plate 23. The toothed block 272 has toothed structures 276 on both sides that engage with the rack 26. One end of the compression spring 273 is fixed below the toothed block 272, and the other end is fixed on the base plate 271. The button 274 is fixed above the toothed block 272. The middle of the button 274 is made of flexible material and can be recessed downwards under force, causing the toothed block 272 to move downwards and its toothed structure 276 to disengage from the rack 26.

[0038] Initially, the adjusting plate 23 is at its lowest position, meaning the hexagonal wrench hole 22 is at its maximum. It is then fitted onto the fastener 4 that needs to be disassembled or reassembled. Next, button 274 is pressed and pushed forward. Pressing down button 274 disengages the toothed structure 276 of the toothed block 272 from the rack 26, thus pushing the adjusting plate 23 forward along the channel into the hexagonal wrench hole 22. After it abuts against the fastener 4, button 274 is released, and the toothed block 272 moves upward and resets under the action of the compression spring 273. The precision of the toothed structure of the rack 26 and the toothed block 272 is adapted to the different specifications of the hexagonal wrench hole. For example, the module (m) of the rack is 0.3 to 0.5 (difference between adjacent specifications in the small specification segment (S2-S8): the diagonal distance difference is approximately 0.5-1.5 mm). Of course, if the precision is not so accurate, and there is a slight misalignment between the toothed structure of the toothed block and the rack, the button can be moved back a little distance so that the toothed block can accurately lock back into the rack, and it can still be used normally.

[0039] The internal hexagonal adjustment part 3 is provided with multiple hexagonal sleeves and a central hexagonal post. The outermost first hexagonal sleeve 31 is fixed on the wrench body 1. The first hexagonal sleeve 31 is provided with a second hexagonal sleeve 32, a third hexagonal sleeve 33, a fourth hexagonal sleeve 34 and a hexagonal post 35 in sequence. Among the adjacent hexagonal sleeves, the outer hexagonal sleeve is provided with a vertical slide 36 inside, and the two ends of the slide are provided with limiting rings. The top outer side of the inner hexagonal sleeve is provided with a slider 37, which can be inserted into the slide and cooperate with the slide. For example, the first hexagonal sleeve 31 has a slide rail 36 inside. The first limiting ring 311 of the slide rail 36 can be formed by bending the edge of the first hexagonal sleeve. The second limiting ring 312 on the other side can be a separately machined hexagonal retaining ring that is interference-fitted with the first hexagonal sleeve 31, thereby facilitating the installation of the second hexagonal sleeve 32. The top outer side of the second hexagonal sleeve 32 is provided with a slider 37, which can move up and down along the slide rail 36 and extend out from the first hexagonal sleeve 31. Similarly, the third hexagonal sleeve 33 and the fourth hexagonal sleeve 34 are installed, and the top outer side of the hexagonal column 35 is also provided with a corresponding slider 37, which can slide within the slide rail 36 of the fourth hexagonal sleeve 34.

[0040] Initially, all hexagonal sockets and hexagonal posts are retracted within the first hexagonal socket 31. During use, if the bolt's internal hexagonal hole matches the size of the first hexagonal socket 31, the wrench body 1 is placed face down, and the first hexagonal socket 31 is used as an internal hexagonal wrench to tighten or loosen the bolt. When the bolt's internal hexagonal hole is smaller than the first hexagonal socket, the corresponding hexagonal socket is pushed out towards the back of the wrench body 1 according to the hole size, forming a new internal hexagonal wrench with the internal hexagonal sockets and hexagonal posts. The internal hexagonal adjustment section can be combined to create five standard-sized internal hexagonal wrenches, suitable for tightening or loosening standard bolts.

[0041] Example 2

[0042] The structure of this embodiment is the same as that of embodiment 1. The difference is that the external hexagon adjustment part 2 is set to a flip-up state. That is, a mounting port 11 for accommodating the adjustment seat is provided at one end of the wrench body 1, and the mounting port 11 and the adjustment seat 21 are rotatably connected by a pin 5. That is, the external hexagon adjustment part 2 and the wrench body 1 are rotatably connected by a pin 5, which supports the external hexagon adjustment part 2 to rotate at multiple angles, making it convenient to operate in a confined space.

[0043] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-functional adjustable wrench comprising a wrench body, characterized by: The wrench body has an external hexagonal adjustment part at one end and an internal hexagonal adjustment part at the other end; the external hexagonal adjustment part includes a hexagonal wrench hole and a movable adjustment plate, and the head of the adjustment plate has a fork that can extend into and cooperate with the hexagonal wrench hole. The internal hexagonal adjustment part is provided with multiple fitted hexagonal sleeves and a central hexagonal post. Adjacent hexagonal sleeves are slidably connected to each other and to each other. The outermost first hexagonal sleeve is fixed to the wrench body, and the inner hexagonal sleeve and hexagonal post can slide out to the other side of the wrench body relative to the first hexagonal sleeve.

2. A multi-functional adjustable wrench as claimed in claim 1, wherein: An adjustment seat extends from the rear of the hexagonal wrench hole. The adjustment seat has a hollow structure with a channel inside for the adjustment plate to pass through, and the front end of the channel is connected to one of the inner corners of the hexagonal wrench hole.

3. A multi-functional adjustable wrench as claimed in claim 2 wherein: The fork is inserted into the hexagonal wrench hole in the forward direction and is directly opposite one of the inner angles of the hexagonal wrench hole, with the included angle of the fork being consistent with the inner angle.

4. A multi-functional adjustable wrench as defined in claim 2, wherein: The adjusting seat is provided with a sliding groove, which is located above the channel; the sliding groove is provided with racks on both sides, and a pusher is provided on the sliding groove. The pusher is connected to the tail of the adjusting plate, driving the adjusting plate to extend into the hexagonal wrench hole.

5. A multi-functional adjustable wrench as claimed in claim 4, wherein: The pusher includes a base plate, a toothed block, a compression spring, and a button. The base plate has a post that connects to the tail of the adjustment plate. The toothed block has toothed structures on both sides that engage with the rack. One end of the compression spring is fixed below the toothed block, and the other end is fixed to the base plate. The button is fixed above the toothed block and can press down on the toothed block to disengage its toothed structures from the rack.

6. A multi-functional adjustable wrench as described in claim 1, characterized in that: The wrench body has a mounting port at one end to accommodate the adjustment seat, and the mounting port and the adjustment seat are rotatably connected by a pin, that is, the external hexagonal adjustment part and the wrench body are rotatably connected by a pin.

7. The multi-functional adjustable wrench of claim 1, wherein: In the adjacent hexagonal sleeves, the outer hexagonal sleeve has a vertical slide inside, and the two ends of the slide are equipped with limit rings. The top outer side of the inner hexagonal sleeve is equipped with a slider, which can be inserted into the slide and cooperate with the slide.

8. A multi-functional adjustable wrench as claimed in claim 7, wherein: The hexagonal prism and different numbers of hexagonal sleeves form internal hexagonal structures of different diameters.

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