Adjustable wrench with function of quickly screwing and unscrewing bolt

Abstract

The invention discloses an adjustable spanner with a 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. The problem that disassembly and fixing work cannot be completed due to narrow space or insufficient distance during overhauling is solved, and the use range of the whole device is widened.

Description

Technical Field

[0001] The invention 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 to tighten and loosen bolts. It usually consists of a handle and a head. The head has a rotatable socket that can be used with bolt heads of different specifications. When using a traditional adjustable wrench, it is necessary to manually turn the handle to complete the rotation of the bolt, which is relatively laborious and inefficient. In order to improve the efficiency and convenience of operation, an adjustable wrench with a quick bolt loosening function is designed. This adjustable wrench is usually equipped with a quick bolt loosening device. By pressing a button or pulling a lever, the bolt can be quickly rotated to the desired position, thereby realizing the function of quick bolt loosening. This design makes the operation more convenient, saves time and labor costs, and improves work efficiency. Adjustable wrenches with quick bolt loosening and tightening functions are widely used in the fields of machinery maintenance, automobile maintenance, construction, etc., providing workers with more convenient and efficient tools, and have been widely welcomed and applied.

[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 handle, wherein the wrench head is detachably connected to one end of the telescopic force handle, and the telescopic force handle includes a first force handle, a second force handle and a limiting mechanism, wherein one end of the first force handle is detachably connected to the wrench head, and the second force handle is sleeved in the first force handle through the other end of the first force handle, and the second force handle is movably connected to the first force handle; a limiting mechanism is provided at one end where the first force handle is movably connected to the second force handle, and the limiting mechanism corresponds to the second force handle. The structure of the present invention is designed to be fully detachable, which is convenient for production, carrying, use and later maintenance. The detachable labor-saving adjustable wrench in the above invention 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. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to provide an adjustable wrench which can quickly loosen or tighten bolts.

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

[0007] A movable wrench capable of quickly tightening and loosening bolts comprises a main rod, a storage groove is formed on one side outer wall 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 a casing, one side of the casing is fixedly connected to a cover, and a quick tightening and loosening mechanism is arranged inside the casing, and a bolt sleeve is clamped at the end of the quick tightening and loosening 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 one side of the top of the fan-shaped groove, the adjusting rod is threadedly connected to the circumference of one end of the rotating shaft 1, and the adjusting block is threadedly connected to the circumference of the other end of the rotating shaft 1.

[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 of the casing on both sides, the second rotating shaft is fixedly connected to the inner wall of the back side of the casing, and the clamping rod is rotatably connected to the circumference of the second rotating shaft, the machine cover is attached to the inner circumference of the casing, and the sockets are opened on both sides of the machine cover, the screw rod is inserted into the socket, and the screw rod 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 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 casing. The connecting hole and the through hole have the same aperture, 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 end of the clamping rod is clamped with the circumference of the top end of the ratchet.

[0011] A better solution in the above-mentioned solution 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 groove.

[0013] At the same time, a notch is provided at the top of the extension rod, the adjusting head is rotatably connected to both sides of the notch through a rotating shaft 3, a clamping hole is provided on one side of the adjusting head, and a bolt sleeve 2 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 inside 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 in 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 joint between the trapezoidal block and the slider is a slope structure.

[0016] As a more optimal solution of the present invention: the column spring is fixedly connected to an inner wall of one side of the clamping seat, and the end of the column 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 present invention are:

[0018] 1. A wrench with the function of quickly loosening and tightening bolts, the quick loosening and tightening mechanism includes a fan-shaped groove, an adjusting rod, a rotating shaft one, a handle, a twist cover, an adsorption groove, a ratchet, a clamping seat, a fixing seat, a conical spring, a rotating shaft two, a clamping rod, an adjusting block, a screw, a rotating hole, a plug hole and a through hole. The adjusting rod is twisted to make it fit to the left side of the fan-shaped groove, and the adjusting block deviates to the left and squeezes the clamping rod on one side of it, compressing the conical spring on one side of the clamping rod. At this time, the top end of the clamping rod located on the right side of the adjusting block is clamped with the circumference of the ratchet. Then, the bolt sleeve is connected to the bolt to be loosened and tightened, and 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 tightening and loosening bolts, by pulling the extension rod to take the extension rod out of the storage slot, and at the same time rotating the adjustment head to align the bolt sleeve two with the bolt to be loaded and unloaded, and by rotating the extension rod to drive the bolt sleeve two to load and unload the target bolt, thereby solving the problem of being unable to complete the disassembly and fixing work due to narrow space or insufficient distance during maintenance, and expanding the scope of use of the overall device.

[0020] 3. This 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 A schematic diagram of the main structure of an adjustable wrench capable of quickly loosening and tightening bolts proposed by the present invention;

[0022] Figure 2 A schematic diagram of the back structure of an adjustable wrench capable of quickly loosening and tightening bolts proposed by the present invention;

[0023] Figure 3 A schematic diagram of the structure of an expansion rod in an adjustable wrench with a function of quickly loosening and tightening bolts proposed by the present invention;

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

[0025] Figure 5 A structural schematic diagram of a partial exploded view of an adjustable wrench with the function of quickly loosening and tightening bolts proposed by the present invention;

[0026] Figure 6 A schematic diagram of the internal structure of a clamping seat in an adjustable wrench capable of quickly loosening and tightening bolts proposed by the present invention;

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

[0028] In the figure: 1. extension rod; 2. main rod; 3. rotating seat; 4. casing; 5. cover; 6. bolt sleeve one; 7. fan-shaped groove; 8. adjustment rod; 9. rotating shaft one; 10. handle; 11. twist cover; 12. adsorption groove; 13. storage groove; 14. ratchet; 15. clamping seat; 16. fixing seat; 17. conical spring; 18. rotating shaft two; 19. clamping rod; 20. adjusting block; 21. screw; 22. rotating hole; 23. socket; 24. through hole; 25. columnar spring; 26. trapezoidal block; 27. guide shaft; 28. slider; 29. ​​clamping ball; 30. connecting shaft; 31. slide groove; 32. adjusting head; 33. bolt sleeve two; 34. rotating shaft three. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0030] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood 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 drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Embodiment 1:

[0034] A spanner capable of quickly loosening or tightening 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 storage 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 storage 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 a casing 4, one side of the casing 4 is fixedly connected to a cover 5, and a quick tightening mechanism is arranged 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 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 plug hole 23 and a through hole 24, and the fan-shaped groove 7 is opened 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;

[0036] The fixing seat 16 is fixedly connected to both sides of the inside 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 attached to the inner circumference of the housing 4, and the jacks 23 are opened on both sides of the cover 5, the screw 21 is inserted into the jacks 23, and the screw 21 is connected to the fixing seat 16 through threads, and the rotating hole 22 is opened at the bottom of the cover 5;

[0037] The second rotating shaft 18 is plugged into the rotating hole 22, the through hole 24 is opened on one side of the cover 5, and a connecting hole is opened on one side of the 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 with the circumference of the top end 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 sleeved with each other, 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, and the handle 10 is fixedly connected to the end surface of the twist cover 11;

[0039] When in 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, and the adjusting block 20 is offset 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 located 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, and the clamping rod 19 is driven to move on the circumference of the ratchet 14 by rotating the main rod 2. Then, the main rod 2 is reversed to realize the 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 through the rotating shaft 34. A clamping hole is formed on one side of the adjustment head 32, and the bolt sleeve 2 33 is clamped in the clamping hole.

[0042] By pulling the extension rod 1, the extension rod 1 is taken out from the storage groove 13, and at the same time, the adjusting head 32 is rotated to align the bolt sleeve 33 with the bolt to be loaded and unloaded, and the bolt sleeve 33 is driven by rotating the extension rod 1 to load and unload the target bolt. This solves the problem of being unable to complete the disassembly and fixing work due to narrow space or insufficient distance during maintenance, and expands the scope of use of the overall device.

[0043] Embodiment 2:

[0044] A spanner capable of quickly loosening or tightening 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 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, and the slide groove 31 is opened on one side of the inside of the clamping seat 15, the slider 28 is slidably connected in the slide groove 31, and a guide hole begins to be 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;

[0045] A ball groove is provided on the inner side of the bolt sleeve 6, the guide shaft 27 is slidably connected in 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 joint between the trapezoidal block 26 and the slider 28 is an inclined 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 the present 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, and 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, which promotes the fixed connection between the clamping seat 15 and the bolt sleeve 6. At this time, the twist cover 11 is adsorbed in the adsorption groove 12, which effectively promotes the installation and fixation of the bolt sleeve 6, and 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 description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

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

2. The adjustable wrench capable of quickly loosening and tightening 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 plug hole (23) and a through hole (24), wherein the fan-shaped groove (7) is arranged on the back outer wall of the casing (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 means of a thread, and the adjusting block (20) is connected to the circumference of the other end of the rotating shaft (9) by means of 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 inside of the casing (4), the conical spring (17) is fixedly connected to the inner walls of both sides of the casing (4), the second rotating shaft (18) is fixedly connected to the inner wall of the back side of the casing (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 casing (4), and the insertion holes (23) are provided on both sides of the cover (5), the screw rod (21) is inserted into the insertion hole (23), and the screw rod (21) is connected to the fixing seat (16) through a thread, and the rotation hole (22) is provided 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), a through hole (24) is provided on one side of the machine cover (5), a connecting hole is provided 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 arranged in the clamping seat (15), the bolt sleeve (6) and the clamping seat (15) are mutually sleeved, 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 storage 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, the adjustment 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 adjustment 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 arranged on one side of the inside of the clamping seat (15), the slider (28) is slidably connected in the slide groove (31), 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).

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 in the clamping seat (15); 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 joint between the trapezoidal block (26) and the slider (28) is an inclined 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 an 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).

Images