Adjustable wrench with function of quickly screwing and unscrewing bolt

Abstract

The utility model discloses an adjustable spanner with the function of quickly loosening and tightening a bolt, and relates to the technical field of adjustable spanners. The device specifically comprises a main rod, a storage groove is formed in the outer wall of one side of the main rod, an expansion assembly is rotationally connected into the storage groove, a rotating seat is fixedly connected to the outer wall of the top of the main rod, a machine shell is rotationally connected to the top of the rotating seat, a machine cover is fixedly connected to one side of the machine shell, and a quick loosening and tightening mechanism is arranged in the machine shell. A bolt sleeve is clamped to the end of the quick loosening and tightening mechanism, and the quick loosening and tightening mechanism comprises a fan-shaped groove, an adjusting rod, a first rotating shaft, a handle, a twisting cover, an adsorption groove, a ratchet wheel, a clamping base, a fixing base, a conical spring, a second rotating shaft, a clamping rod, an adjusting block, a screw rod, a rotating hole, an inserting hole and a through hole. According to the utility model, the problem that the dismounting and fixing work cannot be completed due to narrow space or insufficient distance during maintenance is solved, and the application range of the whole device is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of adjustable wrenches, in particular to an adjustable wrench capable of quickly loosening or tightening bolts. Background Art

[0002] An adjustable wrench is a tool used for tightening and loosening bolts. It typically consists of a handle and a head with a rotatable socket that accommodates bolt heads of varying sizes. Traditional adjustable wrenches require manual turning of the handle to rotate the bolt, which is laborious and inefficient. To improve operational efficiency and convenience, adjustable wrenches with quick-release bolt-tightening features have been designed. These adjustable wrenches are typically equipped with a quick-release bolt-tightening mechanism that allows the bolt to be quickly rotated to the desired position by pressing a button or pulling a lever. This design makes operation more convenient, saves time and labor costs, and improves work efficiency. Adjustable wrenches with quick-release bolt-tightening features are widely used in fields such as machinery repair, automotive maintenance, and construction, providing workers with a more convenient and efficient tool and gaining widespread popularity and adoption.

[0003] After searching, the invention with Chinese patent application number CN2022112724668 discloses a detachable labor-saving adjustable wrench, including a wrench head and a telescopic force-added handle, wherein the wrench head is detachably connected to one end of the telescopic force-added handle, and the telescopic force-added handle includes a first force-added handle, a second force-added handle and a limiting mechanism, wherein one end of the first force-added handle is detachably connected to the wrench head, and the second force-added handle is sleeved in the first force-added handle through the other end of the first force-added handle, and the second force-added handle is movably connected to the first force-added handle; a limiting mechanism is provided at one end where the first force-added handle is movably connected to the second force-added handle, and the limiting mechanism corresponds to the second force-added handle. The structure of the utility model is fully detachable, which is convenient for production, and more convenient for carrying, use and later maintenance. A detachable labor-saving adjustable wrench in the above utility model has the following shortcomings:

[0004] Although the above device has a simple structure, is easy to manufacture, and improves the operator's work efficiency, it is unable to complete the disassembly and fixation work when the space is small or the distance is insufficient during maintenance, resulting in difficulty in loading and unloading the workpiece. Therefore, there is an urgent need for a wrench that can quickly loosen and tighten bolts. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and provides an adjustable wrench with the function of quickly loosening and tightening bolts.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An adjustable wrench with the function of quickly loosening and tightening bolts includes a main rod, a storage groove is opened on the outer wall of one side of the main rod, and an extension component is rotatably connected in the storage groove, a rotating seat is fixedly connected to the top outer wall of the main rod, and the top of the rotating seat is rotatably connected to the machine casing, one side of the machine casing is fixedly connected to the machine cover, and a quick loosening and tightening mechanism is provided inside the machine casing, and a bolt sleeve is clamped at the end of the quick loosening and tightening mechanism.

[0008] Preferably: the quick tensioning mechanism includes a fan-shaped groove, an adjusting rod, a rotating shaft 1, a handle, a twist cover, an adsorption groove, a ratchet, a clamping seat, a fixing seat, a conical spring, a rotating shaft 2, a clamping rod, an adjusting block, a screw, a rotating hole, a jack and a through hole, and the fan-shaped groove is opened on the back outer wall of the casing, the rotating shaft 1 is rotatably connected to the top side of the fan-shaped groove, the adjusting rod is connected to the circumference of one end of the rotating shaft 1 by a thread, and the adjusting block is connected to the circumference of the other end of the rotating shaft 1 by a thread.

[0009] Furthermore: the fixing seat is fixedly connected to the inner sides of the casing, the conical spring is fixedly connected to the inner walls on both sides of the casing, the second rotating shaft is fixedly connected to the inner wall of the back of the casing, and the clamping rod is rotatably connected to the circumference of the second rotating shaft, the machine cover is fitted on the inner circumference of the casing, and the sockets are opened on both sides of the machine cover, the screw is inserted into the socket, and the screw is connected to the fixing seat through a thread, and the rotating hole is opened at the bottom of the machine cover.

[0010] On the basis of the above-mentioned scheme: the second rotating shaft is plugged into the rotating hole, the through hole is opened on one side of the machine cover, and a connecting hole is opened on one side of the machine casing. The aperture of the connecting hole is the same as that of the through hole, and the two ends of the ratchet are respectively rotatably connected to the connecting hole and the through hole, the clamping seat is fixedly connected to one end of the ratchet, and the top of the clamping rod is clamped with the circumference of the top of the ratchet.

[0011] Among the above-mentioned schemes, a better scheme is: one end of the conical spring is fixedly connected to one side of the clamping rod, a clamping mechanism is provided in the clamping seat, the bolt sleeve and the clamping seat are mutually sleeved, the adsorption groove is opened on the end face of the ratchet, and the twist cover is adsorbed in the adsorption groove, and the handle is fixedly connected to the end face of the twist cover.

[0012] As a further solution of the present invention: the expansion component includes an expansion rod, an adjustment head, a second bolt sleeve and a third rotating shaft, and the bottom end of the expansion rod is rotatably connected to both sides of the inner bottom of the storage slot.

[0013] At the same time, a notch is provided at the top of the expansion rod, and the adjusting head is rotatably connected to both sides of the notch through a third rotating shaft. A clamping hole is provided on one side of the adjusting head, and a second bolt sleeve is clamped in the clamping hole.

[0014] As a preferred embodiment of the present invention: the clamping mechanism includes a columnar spring, a trapezoidal block, a guide shaft, a slider, a clamping ball, a connecting shaft and a slide groove, and the slide groove is opened on one side of the clamping seat, the slider is slidably connected in the slide groove, a guide hole begins to be provided on one side of the clamping seat, the connecting shaft is fixedly connected to one side of the slider, and the clamping ball is fixedly connected to one end of the connecting shaft.

[0015] At the same time, a ball groove is opened on the inner side of the bolt sleeve, the guide shaft is slidably connected to the clamping seat, and the end of the guide shaft is fixedly connected to one side of the twist cover, the trapezoidal block is fixedly connected to the other end of the guide shaft, and the junction between the trapezoidal block and the slider is a slope structure.

[0016] As a more optimal solution of the present invention: the columnar spring is fixedly connected to the inner wall of one side of the clamping seat, and the end of the columnar spring is fixedly connected to one side of the slider, and the trapezoidal block is adapted to the slider.

[0017] The beneficial effects of the utility model are:

[0018] 1. The adjustable wrench with the function of quickly loosening and tightening bolts comprises a quick loosening and tightening mechanism including a fan-shaped groove, an adjusting rod, a rotating shaft 1, a handle, a twist cover, an adsorption groove, a ratchet, a clamping seat, a fixing seat, a conical spring, a rotating shaft 2, a clamping rod, an adjusting block, a screw, a rotating hole, a jack and a through hole. The adjusting rod is twisted to make it fit toward the left side of the fan-shaped groove, and the adjusting block deflects to the left and squeezes the clamping rod on one side thereof, compressing the conical spring on one side of the clamping rod. At this time, the top end of the clamping rod on the right side of the adjusting block is clamped with the circumference of the ratchet. Then, the bolt sleeve is sleeved on the bolt to be loosened and tightened. The clamping rod is driven to move on the circumference of the ratchet by rotating the main rod. The main rod is reversed to achieve quick loosening and tightening of the bolt, thereby improving the efficiency of quick loading and unloading of bolt workpieces.

[0019] 2. The adjustable wrench with the function of quickly loosening and tightening bolts can be removed from the storage slot by pulling the extension rod, and the adjustment head can be rotated at the same time to align the bolt sleeve second with the bolt to be loaded and unloaded. The bolt sleeve second is driven by rotating the extension rod to load and unload the target bolt. This solves the problem of being unable to complete disassembly and fixing work due to limited space or insufficient distance during maintenance, and expands the scope of use of the entire device.

[0020] 3. The adjustable wrench with the function of quickly loosening and tightening bolts drives the guide shaft to move by pushing the twist cover, and the moving guide shaft drives the trapezoidal block to move. The trapezoidal block is linked with the slider, and the trapezoidal block pushes the slider to slide in the slide groove. At this time, the ball at the end of the connecting shaft on one side of the slider is inserted into the ball groove in the clamping seat, promoting the fixed connection between the clamping seat and the bolt sleeve. The twist cover is adsorbed in the adsorption groove at this time, which effectively promotes the installation and fixation of the bolt sleeve. At the same time, it also facilitates the replacement and installation of bolt sleeves of different calibers, meets the loading and unloading requirements of bolt workpieces of different specifications, and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the adjustable wrench with the function of quickly loosening and tightening bolts proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the back structure of the adjustable wrench with the function of quickly loosening and tightening bolts proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the expansion rod in the adjustable wrench with the function of quickly loosening and tightening bolts proposed by the utility model;

[0024] Figure 4 A schematic diagram of the internal structure of the housing of the adjustable wrench with the function of quickly loosening and tightening bolts proposed in the present invention;

[0025] Figure 5 This is a structural diagram of a partial exploded view of the adjustable wrench with the function of quickly loosening and tightening bolts proposed by the utility model;

[0026] Figure 6 This is a schematic diagram of the internal structure of the clamping seat in the adjustable wrench with the function of quickly loosening and tightening bolts proposed by the utility model;

[0027] Figure 7 This is a schematic diagram of the partial structure of the adjusting head in the adjustable wrench with the function of quickly loosening and tightening bolts proposed by the utility model.

[0028] In the figure: 1. Extension rod; 2. Main rod; 3. Rotating seat; 4. Casing; 5. Cover; 6. Bolt sleeve 1; 7. Fan-shaped groove; 8. Adjusting rod; 9. Rotating shaft 1; 10. Handle; 11. Twist cover; 12. Adsorption groove; 13. Storage groove; 14. Ratchet; 15. Snap-fit ​​seat; 16. Fixed seat; 17. Conical spring; 18. Rotating shaft 2; 19. Clamping rod; 20. Adjusting block; 21. Screw; 22. Rotating hole; 23. Socket; 24. Through hole; 25. Column spring; 26. Trapezoidal block; 27. Guide shaft; 28. Slider; 29. ​​Clamping ball; 30. Connecting shaft; 31. Slide groove; 32. Adjusting head; 33. Bolt sleeve 2; 34. Rotating shaft 3. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model will be further described in detail below in conjunction with specific implementation methods.

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "disposed" should be understood in a broad sense. For example, they may refer to fixed connection or disposition, detachable connection or disposition, or integral connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] Example 1:

[0034] Adjustable wrench that can quickly loosen and tighten bolts, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, it includes a main rod 2, a receiving groove 13 is opened on the outer wall of one side of the main rod 2, and an expansion component is rotatably connected in the receiving groove 13, the top outer wall of the main rod 2 is fixedly connected to a rotating seat 3, and the top of the rotating seat 3 is rotatably connected to a casing 4, one side of the casing 4 is fixedly connected to a cover 5, and a quick tightening mechanism is provided inside the casing 4, and a bolt sleeve 6 is clamped at the end of the quick tightening mechanism.

[0035] In order to realize the function of fast tightening and loosening bolts; Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown, the quick release mechanism includes a fan-shaped slot 7, an adjusting rod 8, a rotating shaft 9, a handle 10, a twist cover 11, an adsorption slot 12, a ratchet 14, a clamping seat 15, a fixing seat 16, a conical spring 17, a rotating shaft 18, a clamping rod 19, an adjusting block 20, a screw 21, a rotating hole 22, a plug hole 23 and a through hole 24. The fan-shaped slot 7 is formed on the back outer wall of the housing 4, the rotating shaft 9 is rotatably connected to one side of the top of the fan-shaped slot 7, the adjusting rod 8 is threadedly connected to the circumference of one end of the rotating shaft 9, and the adjusting block 20 is threadedly connected to the circumference of the other end of the rotating shaft 9.

[0036] The fixing base 16 is fixedly connected to both sides of the interior of the housing 4. The conical spring 17 is fixedly connected to the inner walls of the housing 4 on both sides. The second rotating shaft 18 is fixedly connected to the inner wall of the back of the housing 4, and the clamping rod 19 is rotatably connected to the circumference of the second rotating shaft 18. The cover 5 is attached to the inner circumference of the housing 4, and the sockets 23 are formed on both sides of the cover 5. The screw 21 is inserted into the sockets 23 and connected to the fixing base 16 via threads. The rotating hole 22 is formed at the bottom of the cover 5.

[0037] The second rotating shaft 18 is plugged into the rotating hole 22. A through hole 24 is formed on one side of the cover 5. A connecting hole is formed on one side of the housing 4. The connecting hole and the through hole 24 have the same diameter. The two ends of the ratchet 14 are rotatably connected to the connecting hole and the through hole 24 respectively. The clamping seat 15 is fixedly connected to one end of the ratchet 14. The top end of the clamping rod 19 is clamped to the top circumference of the ratchet 14.

[0038] One end of the conical spring 17 is fixedly connected to one side of the clamping rod 19. A clamping mechanism is provided in the clamping seat 15. The bolt sleeve 16 and the clamping seat 15 are mutually engaged. The adsorption groove 12 is provided on the end surface of the ratchet 14, and the twist cover 11 is adsorbed in the adsorption groove 12. The handle 10 is fixedly connected to the end surface of the twist cover 11.

[0039] During use, the bolt sleeve 6 is fixed to the outer periphery of the clamping seat 15 through the clamping mechanism. At the same time, the adjusting rod 8 is twisted to make it fit to the left side of the fan-shaped groove 7. The adjusting block 20 deviates to the left and squeezes the clamping rod 19 on one side thereof, compressing the conical spring 17 on one side of the clamping rod 19. At this time, the top end of the clamping rod 19 on the right side of the adjusting block 20 is clamped with the circumference of the ratchet 14. Then, the bolt sleeve 6 is sleeved on the bolt to be tightened or loosened. The clamping rod 19 is driven to move on the circumference of the ratchet 14 by rotating the main rod 2. The main rod 2 is reversed to achieve rapid tightening or loosening of the bolt, thereby improving the efficiency of rapid loading and unloading of bolt workpieces.

[0040] To solve the problem of being unable to complete disassembly and fixing work due to narrow space or insufficient distance during maintenance; Figure 7 As shown, the expansion assembly includes an expansion rod 1, an adjustment head 32, a second bolt sleeve 33 and a third rotating shaft 34, and the bottom end of the expansion rod 1 is rotatably connected to both sides of the inner bottom of the receiving groove 13;

[0041] A notch is formed at the top of the extension rod 1, and the adjustment head 32 is rotatably connected to both sides of the notch via a third rotating shaft 34. A clamping hole is formed on one side of the adjustment head 32, and a second bolt sleeve 33 is clamped into the clamping hole.

[0042] By pulling the expansion rod 1, the expansion rod 1 is taken out from the storage groove 13, and at the same time, the adjusting head 32 is rotated and the bolt sleeve 33 is aligned with the bolt to be loaded and unloaded. The bolt sleeve 33 is driven by the rotation of the expansion rod 1 to load and unload the target bolt. In this way, the problem of being unable to complete the disassembly and fixing work due to narrow space or insufficient distance during maintenance is solved, and the scope of use of the entire device is expanded.

[0043] Example 2:

[0044] Adjustable wrench that can quickly loosen and tighten bolts, such as Figure 6 As shown, in order to facilitate the replacement and installation of bolt sleeves 6 of different calibers; the clamping mechanism includes a columnar spring 25, a trapezoidal block 26, a guide shaft 27, a slider 28, a clamping ball 29, a connecting shaft 30 and a slide groove 31, and the slide groove 31 is opened on one side of the inner part of the clamping seat 15, the slider 28 is slidably connected in the slide groove 31, and a guide hole is formed on one side of the clamping seat 15. The connecting shaft 30 is fixedly connected to one side of the slider 28, and the clamping ball 29 is fixedly connected to one end of the connecting shaft 30;

[0045] A ball groove is provided on the inner side of the bolt sleeve 6, the guide shaft 27 is slidably connected to the clamping seat 15, and the end of the guide shaft 27 is fixedly connected to one side of the twist cover 11, the trapezoidal block 26 is fixedly connected to the other end of the guide shaft 27, and the junction between the trapezoidal block 26 and the slider 28 is a slope structure, the columnar spring 25 is fixedly connected to the inner wall of one side of the clamping seat 15, and the end of the columnar spring 25 is fixedly connected to one side of the slider 28, and the trapezoidal block 26 is adapted to the slider 28.

[0046] When this embodiment is in use, the guide shaft 27 is driven to move by pushing the twist cover 11, and the moving guide shaft 27 drives the trapezoidal block 26 to move. The trapezoidal block 26 is linked with the slider 28, and the trapezoidal block 26 pushes the slider 28 to slide in the slide groove 31. At this time, the end of the connecting shaft 30 on one side of the slider 28 is clamped into the ball groove in the clamping seat 15, promoting the fixed connection between the clamping seat 15 and the bolt sleeve 6. The twist cover 11 is adsorbed in the adsorption groove 12 at this time, which effectively promotes the installation and fixation of the bolt sleeve 6. At the same time, it also facilitates the replacement and installation of bolt sleeves 6 of different calibers, meets the loading and unloading requirements of bolt workpieces of different specifications, and improves practicality.

[0047] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable wrench capable of quickly tightening and loosening bolts, comprising a main rod (2), characterized in that: A receiving groove (13) is provided on one side outer wall of the main rod (2), and an extension component is rotatably connected in the receiving groove (13); a rotating seat (3) is fixedly connected to the top outer wall of the main rod (2), and the top of the rotating seat (3) is rotatably connected to the machine shell (4); a cover (5) is fixedly connected to one side of the machine shell (4), and a quick release mechanism is provided inside the machine shell (4), and a bolt sleeve (6) is clamped at the end of the quick release mechanism.

2. The adjustable wrench capable of quickly tightening and loosening bolts according to claim 1, characterized in that: The quick release mechanism comprises a fan-shaped groove (7), an adjusting rod (8), a rotating shaft (9), a handle (10), a twist cover (11), an adsorption groove (12), a ratchet (14), a clamping seat (15), a fixing seat (16), a conical spring (17), a rotating shaft (18), a clamping rod (19), an adjusting block (20), a screw rod (21), a rotating hole (22), a jack (23) and a through hole (24), wherein the fan-shaped groove (7) is provided on the back outer wall of the housing (4), the rotating shaft (9) is rotatably connected to one side of the top of the fan-shaped groove (7), the adjusting rod (8) is connected to the circumference of one end of the rotating shaft (9) by a thread, and the adjusting block (20) is connected to the circumference of the other end of the rotating shaft (9) by a thread.

3. The adjustable wrench capable of quickly loosening and tightening bolts according to claim 2, characterized in that: The fixing seat (16) is fixedly connected to both sides of the interior of the housing (4), the conical spring (17) is fixedly connected to the inner walls of both sides of the housing (4), the second rotating shaft (18) is fixedly connected to the inner wall of the back of the housing (4), and the clamping rod (19) is rotatably connected to the circumference of the second rotating shaft (18), the cover (5) is fitted on the inner circumference of the housing (4), and the jack (23) is opened on both sides of the cover (5), the screw (21) is inserted into the jack (23), and the screw (21) is connected to the fixing seat (16) through a thread, and the rotating hole (22) is opened at the bottom of the cover (5).

4. The adjustable wrench capable of quickly loosening and tightening bolts according to claim 2, characterized in that: The second rotating shaft (18) is plugged into the rotating hole (22), the through hole (24) is opened on one side of the machine cover (5), and a connecting hole is opened on one side of the machine housing (4). The connecting hole and the through hole (24) have the same aperture, and the two ends of the ratchet (14) are rotatably connected to the connecting hole and the through hole (24) respectively. The clamping seat (15) is fixedly connected to one end of the ratchet (14), and the top end of the clamping rod (19) is clamped to the circumference of the top end of the ratchet (14).

5. The adjustable wrench capable of quickly loosening and tightening bolts according to claim 2, characterized in that: One end of the conical spring (17) is fixedly connected to one side of the clamping rod (19), a clamping mechanism is provided in the clamping seat (15), the bolt sleeve (6) and the clamping seat (15) are sleeved with each other, the adsorption groove (12) is opened on the end surface of the ratchet (14), and the twist cover (11) is adsorbed in the adsorption groove (12), and the handle (10) is fixedly connected to the end surface of the twist cover (11).

6. The adjustable wrench capable of quickly loosening and tightening bolts according to claim 1, characterized in that: The expansion assembly comprises an expansion rod (1), an adjustment head (32), a second bolt sleeve (33) and a third rotating shaft (34), and the bottom end of the expansion rod (1) is rotatably connected to both sides of the inner bottom of the receiving groove (13).

7. The adjustable wrench capable of quickly loosening and tightening bolts according to claim 6, characterized in that: The top of the expansion rod (1) is provided with a notch, and the adjusting head (32) is rotatably connected to both sides of the notch via a third rotating shaft (34). A clamping hole is provided on one side of the adjusting head (32), and a second bolt sleeve (33) is clamped in the clamping hole.

8. The adjustable wrench capable of quickly loosening and tightening bolts according to claim 5, characterized in that: The clamping mechanism comprises a column spring (25), a trapezoidal block (26), a guide shaft (27), a slider (28), a clamping ball (29), a connecting shaft (30) and a slide groove (31), wherein the slide groove (31) is opened on one side of the inner portion of the clamping seat (15), the slider (28) is slidably connected in the slide groove (31), a guide hole is provided on one side of the clamping seat (15), the connecting shaft (30) is fixedly connected to one side of the slider (28), and the clamping ball (29) is fixedly connected to one end of the connecting shaft (30).

9. The adjustable wrench capable of quickly loosening and tightening bolts according to claim 8, characterized in that: A ball groove is provided on an inner side of the bolt sleeve (6), the guide shaft (27) is slidably connected to the clamping seat (15), and the end of the guide shaft (27) is fixedly connected to one side of the twist cover (11), the trapezoidal block (26) is fixedly connected to the other end of the guide shaft (27), and the junction between the trapezoidal block (26) and the slider (28) is an inclined surface structure.

10. The adjustable wrench capable of quickly loosening and tightening bolts according to claim 8, characterized in that: The column spring (25) is fixedly connected to the inner wall of one side of the clamping seat (15), and the end of the column spring (25) is fixedly connected to one side of the slider (28), and the trapezoidal block (26) is adapted to the slider (28).

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