Quick adjustment adjustable wrench

Abstract

The utility model relates to the field of activity wrench, specifically disclose a kind of quick adjustment activity wrench, including handle, stiff board lip and movable board lip, stiff board lip is fixed on the upper end of handle, handle is passed movable board lip and with its sliding connection, the utility model is when using, just need to push movable assembly along handle upwards, it can drive movable board lip to stiff board lip fast close, until clamping nut, since the rotation of gear is limited in the limiting wheel of limiting component, then movable board lip and stiff board lip can keep the state of clamping nut in the process of rotating nut, when needing to loosen nut, just need to rotate the connecting rod of downside, then mounting block is away from the direction of moving block, to drive gear and locking groove right side wall to separate abutment, at this moment, movable assembly can be moved downwards, then movable board lip is away from stiff board lip, so this has realized the quick adjustment of activity wrench, also avoided the situation that traditional activity wrench worm gear is prone to rust and leads to activity wrench use limited.

Description

Technical Field

[0001] This utility model relates to the field of adjustable wrenches, specifically a quick-adjustable adjustable wrench. Background Technology

[0002] An adjustable wrench, also known as a loose wrench, is a tool used to tighten and loosen nuts and bolts of different sizes, with an adjustable opening width within a certain range. A traditional adjustable wrench consists of a head and a handle. The head comprises a sliding lip, a closed lip, a wrench jaw, a worm gear, and a pivot pin. The size of the wrench jaw is adjusted by rotating the worm gear with the thumb. However, the sliding lip moves slowly when the worm gear is rotated. When a large adjustment of the sliding lip is required, the worm gear needs to be rotated continuously for a long time, resulting in slow adjustment. Furthermore, the worm gear in traditional adjustable wrenches is prone to rusting after friction with the sliding lip. Once the worm gear is rusted, rotation becomes particularly inconvenient, or even impossible, affecting the normal use of the adjustable wrench. Utility Model Content

[0003] The purpose of this invention is to provide a quick-adjusting wrench to overcome the aforementioned defects in the prior art.

[0004] A quick-adjusting adjustable wrench according to the present invention includes a handle, a fixed lip, and a movable lip. The fixed lip is fixed to the upper end of the handle, and the handle passes through and is slidably connected to the movable lip. The wrench further includes:

[0005] An active component is fixedly connected to an active plate lip. The active component includes an active sleeve and an adjustment mechanism. The active sleeve is mounted on a handle and slidably connected to the handle. The active sleeve includes mounting blocks and moving blocks located on the left and right sides of the handle. The mounting block has guide grooves on the side of the moving block near the moving block located on both sides of the handle. The moving block has a guide rod fixed on the side of the moving block near the mounting block, corresponding to the guide groove. The guide rod is slidably connected in the guide groove. The adjustment mechanism is used to adjust the distance between the mounting block and the moving block.

[0006] The limiting component includes a fixed shaft, a limiting wheel, and a gear. The fixed shaft passes through the mounting block from front to back and is fixedly connected to the mounting block. The limiting wheel is fixed on the outer periphery of the fixed shaft. The gear is sleeved on the outer periphery of the limiting wheel and is rotatably connected to it. The left end of the handle has a right-recessed locking groove. The outer periphery of the gear can mesh with the right side wall of the locking groove. The limiting wheel and the gear can only rotate in one direction, that is, the gear can only roll upward along the right side wall of the locking groove.

[0007] Preferably, the right side of the handle has a guide groove recessed to the left, the lower end of the guide groove is open, and a guide block that is slidably connected to the guide groove is fixed on the side of the moving block near the guide groove.

[0008] Preferably, there are two adjustment mechanisms, one on the front and one on the back of the movable component. Each adjustment mechanism includes a rotating sleeve, a push rod, a positioning rod, a central shaft, and two connecting rods. The positioning rod is fixed to the mounting block, the central shaft is fixed to the moving block, the rotating sleeve is rotatably connected to the central shaft, the push rod is vertically arranged, and a push groove is formed inside the push rod. The positioning rod is slidably connected to the push groove, and the push rod and the rotating sleeve are fixedly connected by two connecting rods. The two connecting rods are distributed vertically and form a right triangle with the push rod, with the lower connecting rod being the hypotenuse of the right triangle.

[0009] Preferably, the positioning rod and the central shaft are at the same height. When the upper connecting rod is in a horizontal state, the mounting block and the moving block abut against each other, and the outer periphery of the gear meshes with the right side wall of the locking groove. When the lower connecting rod is in a horizontal state, the outer periphery of the gear disengages from the right side wall of the locking groove.

[0010] Preferably, the mounting block has a mounting groove with openings at both ends. The right end of the mounting groove is connected to the locking groove, and the gear is disposed in the mounting groove.

[0011] Preferably, the inner side of the gear is provided with a plurality of limiting grooves arranged around the limiting wheel and evenly distributed in the circumference. The outer circumference of the limiting wheel is provided with a plurality of receiving grooves evenly distributed in the circumference with the axis of the fixed shaft as the center. A limiting block is slidably connected in the receiving groove. A spring is fixed between the end of the limiting block near the fixed shaft and the bottom wall of the receiving groove. The end of the limiting block away from the fixed shaft is embedded in the limiting groove. The part of the limiting block embedded in the limiting groove has the same cross-sectional shape as the limiting groove.

[0012] Preferably, when the gear rotates relative to the limiting wheel, the angle between the normal of the side wall of the limiting groove that approaches the adjacent limiting block and the tangent of the rotation direction of the limiting groove on that side wall is an acute angle.

[0013] Preferably, when the limiting wheel restricts the rotation of the gear, the angle between the normal of the side wall of the limiting groove that approaches the adjacent limiting block and the tangent of the rotation direction of the limiting groove on that side wall is a right angle.

[0014] The beneficial effects of this utility model are as follows: When using this utility model, simply push the movable component upward along the handle to quickly move the movable plate lip closer to the fixed plate lip until it clamps the nut. Because the limiting wheel in the limiting component restricts the rotation of the gear, the movable component cannot move downward. Thus, the movable plate lip and the fixed plate lip can maintain the state of clamping the nut during the rotation of the nut. When it is necessary to loosen the nut, simply rotate the connecting rod on the lower side upward. The mounting block moves away from the moving block, thereby causing the gear to disengage from the right side wall of the locking groove. At this time, the movable component can be moved downward, and the movable plate lip moves away from the fixed plate lip. In this way, the adjustable wrench can be quickly adjusted, and the situation where the worm gear of the traditional adjustable wrench is prone to rust, which leads to the limitation of the use of the adjustable wrench, is avoided. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a utility model Figure 1 A diagram of AA in the middle;

[0017] Figure 3 This is a utility model Figure 2 Enlarged view of point B in the middle;

[0018] Figure 4 This is a utility model Figure 1 A schematic diagram of CC in the middle;

[0019] Figure 5 This is a schematic diagram of the handle and the rigid lip in this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the movable lip in this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the movable component in this utility model;

[0022] Figure 8 This is an exploded view of the movable component in this utility model.

[0023] In the picture:

[0024] 10. Handle; 11. Fixed lip; 12. Locking groove; 13. Guide groove; 21. Mounting block; 21a. First half mounting block; 21b. Second half mounting block; 22. Moving block; 22a. First half moving block; 22b. Second half moving block; 23. Guide block; 23a. First half guide block; 23b. Second half guide block; 24. Connecting groove; 25. Mounting groove; 26. Positioning groove; 27. Guide rod; 28. Guide groove; 30. Movable lip; 31. Connecting plate; 32. Through groove; 40. Gear; 41. Limiting wheel; 42. Fixed shaft; 43. Storage groove; 44. Limiting block; 45. Limiting groove; 46. Spring; 47. Positioning ring; 50. Rotating sleeve; 51. Central shaft; 52. Connecting rod; 53. Push rod; 54. Push groove; 55. Positioning rod. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are merely simplified descriptions for the convenience of describing this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model. As used herein, the terms up and down and left and right are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors. The specific features of this quick-adjusting wrench are described in detail below:

[0027] One embodiment of this utility model:

[0028] Reference Figures 1-8 This utility model provides a quick-adjusting adjustable wrench, including a handle 10, a fixed lip 11, and a movable lip 30. The fixed lip 11 is fixed to the upper end of the handle 10, and the movable lip 30 has a vertically penetrating slot 32. The handle 10 passes through the slot 32 on the movable lip 30 and is slidably connected to it. The invention is characterized by further comprising:

[0029] The movable component 2 is fixedly connected to the movable plate lip 30. The movable component 2 includes a movable sleeve and an adjustment mechanism. The movable sleeve is mounted on the handle 10 and slidably connected to the handle 10. The movable sleeve includes a mounting block 21 and a moving block 22 located on the left and right sides of the handle 10. The mounting block 21 has a guide groove 28 located on both sides of the handle 10 on the side near the moving block 22. The moving block 22 has a guide rod 27 corresponding to the guide groove 28 fixed on the side near the mounting block 21. The guide rod 27 is slidably connected in the guide groove 28. The adjustment mechanism is used to adjust the distance between the mounting block 21 and the moving block 22.

[0030] Mounting block 21 consists of a first half mounting block 21a and a second half guide block 23B arranged symmetrically. The first half mounting block 21a and the second half guide block 23B are fixedly connected to each other by bolts. Moving block 22 consists of a first half moving block 22a and a second half moving block 22b arranged symmetrically. The first half moving block 22a and the second half moving block 22b are fixedly connected to each other by bolts. A connecting groove 24 is provided in the second half moving block 22b. A connecting plate 31 is fixedly provided on the lower end face of the movable plate lip 30. The connecting plate 31 is embedded in the connecting groove 24. Bolts used to fix the first half moving block 22a and the second half moving block 22b pass through the connecting plate 31.

[0031] The limiting component 4 includes a fixed shaft 42, a limiting wheel 41, and a gear 40. The fixed shaft 42 passes through the mounting block 21 and is fixedly connected to the mounting block 21. The limiting wheel 41 is fixed on the outer periphery of the fixed shaft 42. The gear 40 is sleeved on the outer periphery of the limiting wheel 41 and is rotatably connected to it. The left end of the handle 10 has a right-recessed locking groove 12. The outer periphery of the gear 40 can mesh with the right side wall of the locking groove 12. The limiting wheel 41 and the gear 40 can only rotate in one direction, that is, the gear 40 can only roll upward along the right side wall of the locking groove 12.

[0032] The right side of the handle 10 has a left-recessed guide groove 13 with an opening at the lower end. The moving block 22 has a guide block 23 fixed on its side near the guide groove 13, which is slidably connected to the guide groove 13. The guide block 23 consists of a first half guide block 23a and a second half guide block 23b arranged symmetrically. The first half guide block 23a is fixed on the first half moving block 22a, and the second half guide block 23b is fixed on the second half moving block 22b. The width of the left side wall of the guide groove 13 is greater than the opening at the right end of the guide groove 13.

[0033] There are two adjustment mechanisms, one on the front and one on the back of the movable component. The adjustment mechanism includes a rotating sleeve 50, a push rod 53, a positioning rod 55, a central shaft 51, and two connecting rods 52. The positioning rod 55 is fixed on the mounting block 21, the central shaft 51 is fixed on the moving block 22, the rotating sleeve 50 is rotatably connected to the central shaft 51, the push rod 53 is vertically arranged, and a push groove 54 is opened in the push rod 53. The positioning rod 55 is slidably connected to the push groove 54. The push rod 53 and the rotating sleeve 50 are fixedly connected by two connecting rods 52. The two connecting rods 52 are distributed vertically and form a right triangle with the push rod 53. The lower connecting rod 52 is the hypotenuse of the right triangle.

[0034] The positioning rod 55 and the central shaft 51 are at the same height. When the upper connecting rod 52 is in a horizontal state, the mounting block 21 and the moving block 22 abut against each other, and the outer periphery of the gear 40 meshes with the right side wall of the locking groove 12. When the lower connecting rod 52 is in a horizontal state, the outer periphery of the gear 40 disengages from the right side wall of the locking groove 12.

[0035] The mounting block 21 has a mounting groove 25 with openings at both ends. Positioning grooves 26 are formed on both the front and rear side walls of the mounting groove 25. A fixed shaft 42 passes through the positioning groove 26. Two positioning rings 47, symmetrically arranged with a gear 40, are fixed to the outer periphery of the fixed shaft 42. The two positioning rings 47 are respectively embedded in the two positioning grooves 26. An external spline (not shown) is formed on the outer periphery of the fixed shaft 42. Through holes corresponding to the fixed shaft 42 are formed on the first half of the mounting block 21a and the second half of the guide block 23B. An internal spline (not shown) is formed on the inner wall of the through hole. The fixed shaft 42 is splined to the through hole. The right end of the mounting groove 25 communicates with the locking groove 12. The gear 40 is positioned within the mounting groove 25.

[0036] Multiple circumferentially evenly distributed limiting grooves 45 are provided on the inner side of the gear 40, which surround the limiting wheel 41. Multiple circumferentially evenly distributed receiving grooves 43 are provided on the outer periphery of the limiting wheel 41, with the axis of the fixed shaft 42 as the center. A limiting block 44 is slidably connected in the receiving groove 43. A spring 46 is fixed between the end of the limiting block 44 near the fixed shaft 42 and the bottom wall of the receiving groove 43. The end of the limiting block 44 away from the fixed shaft 42 is embedded in the limiting groove 45. The part of the limiting block 44 embedded in the limiting groove 45 has the same cross-sectional shape as the limiting groove 45.

[0037] When gear 40 and limiting wheel 41 rotate relative to each other, the angle between the normal of the side wall of the limiting groove 45 that is close to the adjacent limiting block 44 and the tangent of the rotation direction of the limiting groove 45 on that side wall is an acute angle.

[0038] When the limiting wheel 41 restricts the rotation of the gear 40, the angle between the normal of the side wall of the limiting groove 45 that is close to the adjacent limiting block 44 and the tangent of the rotation direction of the limiting groove 45 on that side wall is a right angle.

[0039] In use, the fixed lip 11 and the movable lip 30 are fitted onto the nut, and the movable component 2 is pushed toward the fixed lip 11, which causes the movable lip 30 to move toward the fixed lip 11 until the movable lip 30 and the fixed lip 11 clamp the nut.

[0040] During this process, the connecting rod 52 located on the right-angle side is parallel to the line connecting the positioning rod 55 and the central shaft 51. At this time, the mounting block 21 and the moving block 22 abut against each other, and the outer periphery of the gear 40 meshes with the right side wall of the locking groove 12.

[0041] When the movable component 2 moves toward the rigid lip 11, the gear 40 rolls along the locking groove 12 toward the rigid lip 11, as... Figure 3 As shown, the gear 40 rotates clockwise, and the limiting block 44, under the pressure of the inclined surface of the limiting groove 45, overcomes the elastic force of the spring 46 and retracts into the receiving groove 43.

[0042] When the movable lip 30 and the fixed lip 11 clamp the nut, since the other side of the limiting groove 45 opposite to its inclined surface is a straight surface, that is, the pressure of the limiting groove 45 on the limiting block 44 is perpendicular to the sliding direction of the limiting block 44, the limiting block 44 cannot retract into the receiving groove 43, thereby restricting the rotation of the gear 40, thus ensuring that the movable lip 30 and the fixed lip 11 clamp the nut, so that the adjustable wrench can be used to rotate the nut.

[0043] If it is necessary to loosen the nut, rotate the connecting rod 52 towards the direction of the rigid lip 11. The connecting rod 52 located on the inclined side will rotate until it coincides with the line connecting the positioning rod 55 and the central shaft 51. This will cause the mounting block 21 to move away from the moving block 22, thereby driving the gear 40 to move away from the handle 10. This will cause the outer periphery of the gear 40 to disengage from the right side wall of the locking groove 12, thereby causing the movable component 2 to move rapidly away from the rigid lip 11.

[0044] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.

Claims

1. A quick-adjusting adjustable wrench, comprising a handle (10), a fixed lip (11), and a movable lip (30), wherein the fixed lip (11) is fixed to the upper end of the handle (10), and the handle (10) passes through and is slidably connected to the movable lip (30), characterized in that, Also includes: The movable component (2) is fixedly connected to the movable plate lip (30). The movable component (2) includes a movable sleeve and an adjustment mechanism. The movable sleeve is set on the handle (10) and slidably connected to the handle (10). The movable sleeve includes a mounting block (21) and a moving block (22) set on the left and right sides of the handle (10). The mounting block (21) has a guide groove (28) on both sides of the handle (10) on the side near the moving block (22). The moving block (22) has a guide rod (27) fixed on the side near the mounting block (21) corresponding to the guide groove (28). The guide rod (27) is slidably connected in the guide groove (28). The adjustment mechanism is used to adjust the distance between the mounting block (21) and the moving block (22). The limiting component (4) includes a fixed shaft (42), a limiting wheel (41), and a gear (40). The fixed shaft (42) passes through the mounting block (21) from front to back and is fixedly connected to the mounting block (21). The limiting wheel (41) is fixed on the outer periphery of the fixed shaft (42). The gear (40) is sleeved on the outer periphery of the limiting wheel (41) and rotates with it. The left end of the handle (10) has a right-recessed locking groove (12). The outer periphery of the gear (40) can mesh with the right side wall of the locking groove (12). The limiting wheel (41) and the gear (40) can only rotate in one direction, that is, the gear (40) can only roll upward along the right side wall of the locking groove (12).

2. The quick-adjusting wrench according to claim 1, characterized in that, The handle (10) has a left-recessed guide groove (13) on its right side, and the guide groove (13) has an opening at its lower end. The moving block (22) has a guide block (23) fixed on its side surface near the guide groove (13) and is slidably connected to the guide groove (13).

3. The quick-adjusting wrench according to claim 2, characterized in that, The adjustment mechanism is provided in two parts, which are respectively located on the front and rear sides of the movable component. The adjustment mechanism includes a rotating sleeve (50), a push rod (53), a positioning rod (55), a central shaft (51), and two connecting rods (52). The positioning rod (55) is fixed on the mounting block (21), the central shaft (51) is fixed on the moving block (22), the rotating sleeve (50) is rotatably connected to the central shaft (51), the push rod (53) is vertically arranged, and a push groove (54) is opened in the push rod (53). The positioning rod (55) is slidably connected to the push groove (54). The push rod (53) and the rotating sleeve (50) are fixedly connected by two connecting rods (52). The two connecting rods (52) are distributed vertically and form a right triangle with the push rod (53). The lower connecting rod (52) is the hypotenuse of the right triangle.

4. A quick-adjusting wrench according to claim 3, characterized in that, The positioning rod (55) and the central shaft (51) are at the same height. When the upper connecting rod (52) is in a horizontal state, the mounting block (21) and the moving block (22) abut against each other, and the outer periphery of the gear (40) meshes with the right side wall of the locking groove (12). When the lower connecting rod (52) is in a horizontal state, the outer periphery of the gear (40) disengages from the right side wall of the locking groove (12).

5. A quick-adjusting wrench according to claim 1, characterized in that, The mounting block (21) has a mounting groove (25) with openings at both ends. The right end of the mounting groove (25) is connected to the locking groove (12). The gear (40) is located in the mounting groove (25).

6. A quick-adjusting wrench according to claim 1, characterized in that, The gear (40) has multiple circumferentially evenly distributed circumferentially grooves (45) arranged around the limiting wheel (41) on its inner side. The limiting wheel (41) has multiple circumferentially evenly distributed storage grooves (43) centered on the axis of the fixed shaft (42) on its outer periphery. A limiting block (44) is slidably connected in the storage groove (43). A spring (46) is fixed between the end of the limiting block (44) near the fixed shaft (42) and the bottom wall of the storage groove (43). The end of the limiting block (44) away from the fixed shaft (42) is embedded in the limiting groove (45). The part of the limiting block (44) embedded in the limiting groove (45) has the same cross-sectional shape as the limiting groove (45).

7. A quick-adjusting wrench according to claim 6, characterized in that, When the gear (40) and the limiting wheel (41) rotate relative to each other, the angle between the normal of the side wall of the limiting groove (45) that is close to the adjacent limiting block (44) and the tangent of the rotation direction of the limiting groove (45) on that side wall is an acute angle. When the limiting wheel (41) restricts the rotation of the gear (40), the angle between the normal of the side wall of the limiting groove (45) that is close to the adjacent limiting block (44) and the tangent direction of the rotation direction of the limiting groove (45) on that side wall is a right angle.

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