Novel wrench reversible in positive and negative rotation

Abstract

The utility model discloses a novel wrench reversible in forward and reverse rotation, which relates to the technical field of wrench adjustment and comprises a shell, a fixed handle and an adjuster, a movable handle is arranged on the right side of the fixed handle, and a socket head fixing seat is arranged in the shell. One end of the shell is fixedly connected with the fixed handle in a welded mode, the fixed handle and the shell are both of a hollow structure and communicate with each other, the fixed handle is held by the right hand, the ratchet wheel direction switching button is switched, the ratchet wheel mechanism can conduct torque in the anticlockwise direction, and by adjusting the control button, the ratchet wheel mechanism can conduct torque in the anticlockwise direction. Similarly, the movable handle can only rotate in an anticlockwise stressed mode, switching of forward rotation and reverse rotation of the bolt and the nut is completed, the operation of forward rotation and reverse rotation of the bolt and the nut is achieved by adjusting the control button and rotating the movable handle through stress in one direction, and fastening and dismounting operation becomes more convenient and smoother.

Description

Technical Field

[0001] This utility model relates to the field of wrench adjustment technology, and in particular to a novel wrench that can be reversed in both directions. Background Technology

[0002] A wrench is a commonly used tool for installation and disassembly. It is a hand tool that uses leverage to tighten or loosen bolts, screws, nuts, and other threaded fasteners that hold bolts or nuts in open or recessed holes.

[0003] Wrenches typically require the following techniques:

[0004] 1. Handle: As the part that applies force, it is held by the user to apply torque in order to tighten or loosen bolts or nuts;

[0005] 2. Working end: The working end is open-ended, available in single-ended and double-ended types. Its opening size matches the corresponding bolt or nut specification.

[0006] 3. Adjustable end: The width of the opening can be changed by adjusting the worm gear, worm wheel, etc., so that it can adapt to bolts or nuts of different specifications within a certain size range.

[0007] Currently, there are various types of wrenches on the market to meet different usage needs. Common types include ordinary wrenches, which have a simple structure and are suitable for scenarios where high precision and efficiency are not required; ratchet wrenches, which use a ratchet mechanism to allow continuous operation in a specific direction without repeatedly adjusting the wrench position, saving operation time. Additionally, some wrenches are equipped with adjustable heads to accommodate bolts and nuts of different sizes.

[0008] However, the existing wrenches still have some problems. In terms of ease of operation, most wrenches are cumbersome to switch between forward and reverse rotation for bolts and nuts. Some wrenches require users to manually change the direction of force or change the wrench's operating mode. This greatly reduces work efficiency and easily leads to user fatigue for jobs that require frequent forward and reverse rotation. At the same time, most existing wrenches do not fully consider the different usage habits of left-handed and right-handed users. For left-handed users, the operation may not be convenient, affecting the accuracy and speed of operation. To address this problem, this application proposes a new type of reversible wrench. Through a unique structural design, such as a ratchet direction switching button, a control button, and a special gear transmission combination, this wrench allows both right-handed and left-handed users to easily and quickly switch between forward and reverse rotation for bolts and nuts by simply adjusting the button and rotating the movable handle in one direction. The operation is convenient and convenient, greatly improving the efficiency and quality of tightening and disassembly operations, and adapting to the needs of more different usage scenarios. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a novel reversible wrench that solves the problem of cumbersome operation when switching the forward and reverse directions of bolts and nuts with most wrenches. Some wrenches require users to manually change the direction of force or change the wrench's operating mode, which greatly reduces work efficiency for jobs that require frequent forward and reverse operations.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A novel reversible wrench includes a housing, a fixed handle, and an adjuster. A movable handle is located on the right side of the fixed handle. A socket head fixing seat is located inside the housing. The wrench further includes: one end of the housing is fixedly connected to the fixed handle by welding; both the fixed handle and the housing are hollow structures and interconnected; the housing contains a first rotating shaft, a second rotating shaft, a first straight bevel gear, and a second straight bevel gear; the movable handle is connected to the first straight bevel gear by passing through the first rotating shaft; a first end face gear is welded to the toothless end face of the first straight bevel gear; a socket is located on the surface of the housing; and the socket head fixing seat... The second rotating shaft connects to the second spur bevel gear. A second end face gear is welded to the toothless end face of the second spur bevel gear. A ratchet mechanism is provided between the movable handle and the first rotating shaft. The ratchet mechanism has a ratchet direction switching button. A rubber sleeve is provided at the right end of the movable handle. A first spring and a first plane bearing are fitted at the connection between the first rotating shaft and the first spur bevel gear. The first spring and the first plane bearing are located between the first spur bevel gear and the inner wall of the housing. Similarly, a second spring and a second plane bearing are fitted at the connection between the second rotating shaft and the second spur bevel gear. The second spring and the second plane bearing are located between the second spur bevel gear and the inner wall of the housing.

[0012] Preferably, the first rotating shaft, the first spring, the first plane bearing, the first straight bevel gear, the first end face gear, the second end face gear, the second straight bevel gear, the second plane bearing, the second spring, the second rotating shaft, and the sleeve head fixing seat are in a concentric position. The first spring and the second spring enable the first end face gear and the second end face gear to mesh with each other. An adjuster is fitted on the end of the fixing handle away from the housing. The adjuster is provided with a first control hole, a second control hole, and a control button. The adjuster is embedded with a third... The housing is equipped with a No. 3 plane bearing, a No. 3 straight bevel gear, a No. 3 spring, and a No. 4 spring. One end of the No. 3 rotating shaft is embedded in the housing and can move and rotate within the adjuster through the No. 3 plane bearing and the No. 3 spring. The No. 3 rotating shaft is fixedly connected to the No. 3 straight bevel gear inside the housing through the inner cavity of the fixed handle. The No. 3 straight bevel gear, the No. 3 rotating shaft, the adjuster, the No. 3 plane bearing, and the No. 3 spring are located on a concentric axis, and this concentric axis is perpendicular to the concentric axis of the No. 1 end face gear and the No. 2 end face gear.

[0013] Preferably, the control button is embedded in the fixed handle and remains protruding under the action of the fourth spring, preventing it from falling off. When the control button is in the first control hole, the third straight bevel gear is not engaged with the first and second straight bevel gears. The first and second end face gears are engaged under the action of the first and second springs. When the control button is in the second control hole, the third straight bevel gear is engaged with the first and second straight bevel gears under the action of the third spring, squeezing them to move outward. When the first and second straight bevel gears move outward, the first and second springs are squeezed, and the first and second end face gears separate and no longer engage.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Hold the rubber sleeve of the movable handle with your right hand and rotate it clockwise to rotate the bolt or nut counterclockwise. When using it with your left hand, hold the fixed handle with your right hand and switch the ratchet direction switch button to make the ratchet mechanism transmit torque counterclockwise. By adjusting the control button, you can also make the movable handle rotate counterclockwise to switch the bolt or nut rotation. By adjusting the control button, you can use the force applied in one direction to rotate the movable handle to realize the forward and reverse operation of the bolt or nut, making the tightening and disassembly operations more convenient and handy.

[0016] 2. When the bolt or nut needs to be turned counterclockwise, with the adjustment control button in the second control hole, the third straight bevel gear, under the action of the third spring, meshes with the first and second straight bevel gears, and squeezes the first and second straight bevel gears to move outwards, causing the first and second springs to be compressed. The first and second end face gears then separate and no longer mesh. By holding the rubber sleeve of the movable handle with your right hand and rotating it clockwise, the bolt or nut can be turned counterclockwise. The entire process does not require complex action conversions or the application of force in different directions with both hands, greatly improving the convenience and ease of operation and reducing the difficulty and complexity of operation. Attached Figure Description

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a diagram of the internal structure of the present invention for the positive transmission of torque;

[0019] Figure 2 This is a diagram of the internal structure of the reverse torque transmission mechanism of this invention.

[0020] Legend: 1. Housing; 2. Fixed handle; 3. Ratchet mechanism; 4. Ratchet direction switching button; 5. Movable handle; 6. Rubber sleeve; 7. Rotary shaft No. 1; 8. Spring No. 1; 9. Surface bearing No. 1; 10. Straight bevel gear No. 1; 11. End face gear No. 1; 12. End face gear No. 2; 13. Straight bevel gear No. 2; 14. Surface bearing No. 2; 15. Spring No. 2; 16. Rotary shaft No. 2; 17. Sleeve head fixing seat; 18. Sleeve; 19. Straight bevel gear No. 3; 20. Rotary shaft No. 3; 21. Adjuster; 22. Surface bearing No. 3; 23. Spring No. 3; 24. Spring No. 4; 25. Control button; 26. Control hole No. 1; 27. Control hole No. 2. Detailed Implementation

[0021] This application provides a novel reversible wrench that effectively solves the problem of cumbersome operation when switching the forward and reverse rotation of bolts and nuts using most wrenches. Some wrenches require users to manually change the direction of force or change the wrench's operating mode, which greatly reduces work efficiency for jobs that require frequent forward and reverse operations. This solution, through a ratchet direction switching button, control button, and a special gear transmission combination, allows both right-handed and left-handed users to easily and quickly switch the forward and reverse rotation of bolts and nuts by simply adjusting the button and rotating the movable handle in one direction. The operation is convenient and easy to use, greatly improving the efficiency and quality of tightening and disassembly operations, and adapting to the needs of more diverse usage scenarios. Example

[0022] The technical solution in this application effectively solves the problem that most wrenches are cumbersome to operate when switching between forward and reverse rotation for bolts and nuts. Some wrenches require users to manually change the direction of force or change the wrench's operating mode, which greatly reduces work efficiency for jobs that require frequent forward and reverse rotation. The overall idea is as follows:

[0023] To address the problems existing in the prior art, this utility model provides a novel reversible wrench, comprising a housing 1, a fixed handle 2, and an adjuster 21. A movable handle 5 is provided on the right side of the fixed handle 2, and a socket head fixing seat 17 is provided inside the housing 1. This novel reversible wrench further includes: one end of the housing 1 is fixedly connected to the fixed handle 2 by welding; both the fixed handle 2 and the housing 1 are hollow structures and interconnected; a first rotating shaft 7, a second rotating shaft 16, and a first straight bevel gear 10 are provided inside the housing 1. The movable handle 5 is connected to the first straight bevel gear 10 via the first rotating shaft 7. A first end face gear 11 is welded to the toothless end face of the first straight bevel gear 10. A sleeve 18 is provided on the surface of the housing 1. A sleeve head fixing seat 17 is connected to the second straight bevel gear 13 via the second rotating shaft 16. A second end face gear 12 is welded to the toothless end face of the second straight bevel gear 13. A ratchet mechanism 3 is provided between the movable handle 5 and the first rotating shaft 7. A ratchet mechanism 3 is provided with a ratchet. The wheel direction switching button 4 and the right end of the movable handle 5 are equipped with a rubber sleeve 6. A spring 8 and a plane bearing 9 are fitted at the connection between the first rotating shaft 7 and the first straight bevel gear 10. The spring 8 and the plane bearing 9 are located between the first straight bevel gear 10 and the inner wall of the housing 1. A spring 15 and a plane bearing 14 are fitted at the connection between the second rotating shaft 16 and the second straight bevel gear 13. The spring 15 and the plane bearing 14 are located between the second straight bevel gear 13 and the inner wall of the housing 1. When habitually using the right hand... When using the device, hold the fixed handle 2 with your left hand, switch the ratchet direction switching button 4 so that the ratchet mechanism 3 can transmit torque in the clockwise direction, and adjust the control button 25 to be in the first control hole 26. The third straight bevel gear 19 is not engaged with the first straight bevel gear 10 and the second straight bevel gear 13. The first end face gear 11 and the second end face gear 12 are engaged under the action of the first spring 8 and the second spring 15. Hold the rubber sleeve 6 of the movable handle 5 with your right hand and rotate it clockwise to realize the clockwise rotation of the bolt and nut.

[0024] The first rotating shaft 7, the first spring 8, the first plane bearing 9, the first straight bevel gear 10, the first end face gear 11, the second end face gear 12, the second straight bevel gear 13, the second plane bearing 14, the second spring 15, the second rotating shaft 16, and the sleeve head fixing seat 17 are in a concentric position. The first spring 8 and the second spring 15 enable the first end face gear 11 and the second end face gear 12 to mesh with each other. The end of the fixed handle 2 away from the housing 1 is fitted with an adjuster 21. The adjuster 21 is provided with a first control hole 26, a second control hole 27, and a control button 25. The third rotating shaft 20 is embedded in the adjuster 21. The housing 1 is provided with a third plane bearing 22, a third straight bevel gear 19, a third spring 23, and a fourth spring 24. The end of the third rotating shaft 20 embedded in the housing can move and rotate within the adjuster 21 through the third plane bearing 22 and the third spring 23. The third rotating shaft 20 is connected to the housing 1 by... The inner cavity of the fixed handle 2 is fixedly connected to the No. 3 straight bevel gear 19 inside the housing 1. The No. 3 straight bevel gear 19, the No. 3 rotating shaft 20, the adjuster 21, the No. 3 plane bearing 22, and the No. 3 spring 23 are in a concentric axis position, and this concentric axis is perpendicular to the concentric axis of the No. 1 end face gear 11 and the No. 2 end face gear 12. When the bolt and nut need to be rotated counterclockwise, the adjustment control button 25 is in the No. 2 control hole 27, and the No. 3 straight bevel gear... Under the action of spring 23, wheel 19 meshes with straight bevel gear 10 and straight bevel gear 13, and squeezes straight bevel gear 10 and straight bevel gear 13 to move outward, so that spring 8 and spring 15 are squeezed, and end face gear 11 and end face gear 12 are separated and no longer meshed. Hold the rubber sleeve 6 of the movable handle 5 with your right hand and rotate it clockwise to realize the counterclockwise rotation of the bolt and nut.

[0025] Control button 25 is embedded in fixed handle 2 and remains protruding under the action of spring 24, preventing it from falling off. When control button 25 is in control hole 26, straight bevel gear 19 is not engaged with straight bevel gear 10 and straight bevel gear 13. End face gear 11 and end face gear 12 are engaged under the action of spring 8 and spring 15. When control button 25 is in control hole 27, straight bevel gear 19 is engaged with straight bevel gear 10 and straight bevel gear 13 under the action of spring 23, pressing them to move outwards. When the bevel gear 13 moves outward, it will compress the first spring 8 and the second spring 15, causing the first end face gear 11 and the second end face gear 12 to separate and no longer mesh. When a left-handed person uses the device, the right hand holds the fixed handle 2 and switches the ratchet direction switching button 4, allowing the ratchet mechanism 3 to transmit torque counterclockwise. By adjusting the control button 25, the movable handle 5 can also be rotated counterclockwise, completing the switching of the bolt and nut rotation in both directions. By adjusting the control button 25, the movable handle 5 can be rotated in one direction to achieve the forward and reverse rotation of the bolt and nut, making the tightening and disassembly operations more convenient and easy.

[0026] Working principle:

[0027] When used by a right-handed user, the left hand holds the fixed handle 2, and the ratchet direction switching button 4 is used to switch the ratchet mechanism 3 so that the torque can be transmitted clockwise. The control button 25 is then positioned in the first control hole 26. The third straight bevel gear 19 is not engaged with the first straight bevel gear 10 or the second straight bevel gear 13. The first end face gear 11 and the second end face gear 12 are engaged under the action of the first spring 8 and the second spring 15. The right hand holds the rubber sleeve 6 of the movable handle 5 and rotates it clockwise to rotate the bolt or nut clockwise. When the bolt or nut needs to be rotated counterclockwise, the control button 25 is positioned in the second control hole 27. The third straight bevel gear 19, under the action of the third spring 23, engages with the first straight bevel gear 10 and the second straight bevel gear 13, and presses against the first... The straight bevel gear 10 and the second straight bevel gear 13 move outward, causing the first spring 8 and the second spring 15 to be compressed. The first end face gear 11 and the second end face gear 12 separate and no longer mesh. Holding the rubber sleeve 6 of the movable handle 5 with the right hand, a clockwise rotation can be achieved, which can realize the counterclockwise rotation of the bolt and nut. When a left-handed person uses it, holding the fixed handle 2 with the right hand and switching the ratchet direction switch button 4, the ratchet mechanism 3 can transmit torque in the counterclockwise direction. By adjusting the control button 25, the movable handle 5 can also be rotated only counterclockwise, completing the switching of the bolt and nut rotation in both directions. By adjusting the control button 25, the movable handle 5 can be rotated in one direction to realize the forward and reverse operation of the bolt and nut, making the tightening and disassembly operations more convenient and easy.

[0028] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A novel reversible wrench, comprising a housing (1), a fixed handle (2), and an adjuster (21); a movable handle (5) is provided on the right side of the fixed handle (2), and a socket head fixing seat (17) is provided inside the housing (1), characterized in that, The novel reversible wrench further includes: one end of the housing (1) is fixedly connected to the fixed handle (2) by welding. The fixed handle (2) and the housing (1) are both hollow structures and are interconnected. The housing (1) is provided with a first rotating shaft (7), a second rotating shaft (16), a first straight bevel gear (10) and a second straight bevel gear (13). The movable handle (5) is connected to the first straight bevel gear (10) by passing through the first rotating shaft (7). The toothless end face of the first straight bevel gear (10) is welded and fixed with a first end face gear (11). The surface of the housing (1) is provided with a sleeve (18). The sleeve head fixing seat (17) is connected to the second straight bevel gear (13) through the second rotating shaft (16). The toothless end face of the second straight bevel gear (13) is welded and fixed with the second end face gear (12). A ratchet mechanism (3) is provided between the movable handle (5) and the first rotating shaft (7). A ratchet direction switching button (4) is provided on the ratchet mechanism (3). A rubber sleeve (6) is provided at the right end of the movable handle (5). A first spring (8) and a first plane bearing (9) are sleeved at the connection between the first rotating shaft (7) and the first straight bevel gear (10). The first spring (8) and the first plane bearing (9) are located between the first straight bevel gear (10) and the inner wall of the housing (1).

2. The novel reversible wrench as described in claim 1, characterized in that: The connection between the second rotating shaft (16) and the second straight bevel gear (13) is fitted with a second spring (15) and a second plane bearing (14). The second spring (15) and the second plane bearing (14) are located between the second straight bevel gear (13) and the inner wall of the housing (1).

3. A novel reversible wrench as described in claim 2, characterized in that: The first rotating shaft (7), the first spring (8), the first plane bearing (9), the first straight bevel gear (10), the first end face gear (11), the second end face gear (12), the second straight bevel gear (13), the second plane bearing (14), the second spring (15), the second rotating shaft (16), and the sleeve head fixing seat (17) are in a concentric position; Among them, the first spring (8) and the second spring (15) enable the first end face gear (11) and the second end face gear (12) to mesh with each other. The fixed handle (2) is fitted with an adjuster (21) at the end away from the housing (1). The adjuster (21) is provided with a first control hole (26), a second control hole (27) and a control button (25).

4. A novel reversible wrench as described in claim 3, characterized in that: The regulator (21) is embedded with a third rotating shaft (20), and the housing (1) is provided with a third plane bearing (22), a third straight bevel gear (19), a third spring (23) and a fourth spring (24). One end of the third rotating shaft (20) can move and rotate within the regulator (21) through the third plane bearing (22) and the third spring (23). The third rotating shaft (20) is fixedly connected to the third straight bevel gear (19) inside the housing (1) through the inner cavity of the fixed handle (2). The third straight bevel gear (19), the third rotating shaft (20), the adjuster (21), the third plane bearing (22), and the third spring (23) are in a concentric position and the concentric axis is perpendicular to the concentric axis of the first end face gear (11) and the second end face gear (12).

5. A novel reversible wrench as described in claim 4, characterized in that: The control button (25) is embedded in the fixed handle (2) and will not fall off under the action of the fourth spring (24). When the control button (25) is in the first control hole (26); Among them, the No. 3 straight bevel gear (19) does not mesh with the No. 1 straight bevel gear (10) and the No. 2 straight bevel gear (13), while the No. 1 end face gear (11) and the No. 2 end face gear (12) mesh under the action of the No. 1 spring (8) and the No. 2 spring (15).

6. A novel reversible wrench as described in claim 5, characterized in that: When the control button (25) is in the second control hole (27), the third straight bevel gear (19) meshes with the first straight bevel gear (10) and the second straight bevel gear (13) under the action of the third spring (23) and squeezes them to move outward. When the first straight bevel gear (10) and the second straight bevel gear (13) move outward, the first spring (8) and the second spring (15) will be squeezed, and the first end face gear (11) and the second end face gear (12) will separate and no longer mesh.

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