Automobile maintenance wrench
By designing the tightening mechanism, plugging mechanism and anti-slip device in the car maintenance wrench, the problem of traditional wrench being difficult to clamp when the nut is deep is solved, and the automatic clamping and adjustment functions are realized, expanding the scope of application and improving efficiency.
Patent Information
- Application Number
- CN202510486101.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2025-05-30
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the nut position is deep, it is difficult to clamp through hand adjustment, which limits its scope of application.
An automobile maintenance wrench was designed, using technical means such as tightening mechanism, plugging mechanism and anti-slip device to realize automatic clamping and adjustment functions, suitable for nuts of different sizes and positions.
It realizes rapid clamping and disassembly of nuts, expands the scope of application, improves clamping efficiency, and reduces the difficulty and cost of manual operation.
Smart Images

Figure CN120056028A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of automobile maintenance, and particularly to an automobile maintenance wrench. Background Art
[0002] A wrench is a commonly used installation and disassembly tool, which is a manual tool that uses the lever principle to twist open or socket fasteners such as bolts, screws, and nuts. Wrenches are usually made of structural steel of carbon or alloy materials. During the automobile maintenance process, wrenches are often needed to disassemble and assemble some bolts or nuts. However, most traditional wrenches require manual adjustment to clamp nuts. When the position of the nut is relatively deep, it is difficult for the staff to clamp the nut by hand adjustment, and the scope of application is limited to a certain extent. Summary of the Invention
[0003] The purpose of the present invention is to provide an automobile maintenance wrench to solve the problems raised in the above background art.
[0004] To achieve the above purpose, the present invention provides the following technical solution: an automobile maintenance wrench, including a handle. A first groove runs through the inside of the handle. A guide groove communicating with the first groove is also opened inside the handle. An adjusting frame is slidably sleeved at the bottom of the handle, and a fastening head is hinged to the top of the handle. Multiple groups of jacks are opened on both sides of the adjusting frame. A tightening mechanism is installed inside the fastening head. A plugging and unplugging mechanism is installed inside the first groove. Multiple groups of anti-slip devices are installed on both sides of the adjusting frame; The tightening mechanism includes a fixed block, a first bracket, and a second bracket. Two fixed blocks are fixedly connected inside the fastening head. A vertical rod is fixedly connected between the two fixed blocks. A sleeve is slidably sleeved outside the vertical rod. First brackets are hinged on both sides of the sleeve. One end of the first bracket is hinged to a second bracket. One end of the second bracket is fixedly connected to a connecting frame. The top end of the connecting frame is hinged to a third bracket. One end of the third bracket is hinged to a clamping seat. A chute runs through the inside of the clamping seat, and limiting blocks are fixedly connected to the front and rear surfaces of the clamping seat. A support block is also fixedly connected to the inner wall of the clamping seat. An electric push rod is hinged to the bottom end of the connecting frame. A fine adjuster is installed on the clamping seat; The plugging and unplugging mechanism includes a first protection plate, a second protection plate, and a first adjusting rod. The first protection plate and the second protection plate are fixedly connected inside the first groove. The first adjusting rod penetrates through the second protection plate. A second adjusting rod is fixedly penetrated inside the first adjusting rod. The two ends of the second adjusting rod are respectively movably connected to a first connecting rod and a second connecting rod. One end of the first connecting rod is movably connected to a first disc. One end of the second connecting rod is movably connected to a second disc. Guide rods are fixedly connected to the top and bottom of the first disc and the top and bottom of the second disc. Round rods are fixedly connected to the first disc and the second disc. Springs are sleeved outside the round rods.
[0005] Optionally, the first bracket, the second bracket, the connecting bracket, the third bracket, the clamping seat, the sliding groove and the limiting block are symmetrically distributed with respect to the central axis of the fastening head. The fixed end of the electric push rod is hinged to one of the connecting brackets, and the telescopic end of the electric push rod is hinged to the other connecting bracket.
[0006] Optionally, the center point of the connecting bracket is rotatably connected to the inside of the fastening head through a pin shaft, and the limiting block is slidably connected to the inside of the limiting groove.
[0007] Optionally, the fine adjuster includes a first locking block, a second locking block and a screw rod. The first locking block and the second locking block are fixedly connected to the outer side wall of the clamping seat. The screw rod penetrates through the inside of the first locking block. A displacement block is sleeved on the outer thread of the screw rod. A slider is fixedly connected to the displacement block. One end of the slider is fixedly connected to a clamping plate, and a torsion sensor is fixedly connected to the clamping plate.
[0008] Optionally, the slider is slidably connected to the inside of the sliding groove, and the bottom end of the screw rod is rotatably connected to the second locking block through a bearing.
[0009] Optionally, one end of the first adjusting rod is rotatably connected to the first protective plate through a bearing. The guide rod is slidably connected to the inside of the guide groove. The round rod is inserted into the inside of the jack. The first connecting rod and the second connecting rod are equal in size, and the inclination angles of the first connecting rod and the second connecting rod are equal.
[0010] Optionally, the number of the springs is two. One end of one spring is fixedly connected to the first disc, and the other end is fixedly connected to one side wall of the first groove. One end of the other spring is fixedly connected to the second disc, and the other end is fixedly connected to the other side wall of the first groove.
[0011] Optionally, the anti-slip device includes a first cross plate, a second cross plate and an anti-slip iron plate. The first cross plate and the second cross plate are fixedly connected to the adjusting frame. The anti-slip iron plate is installed between the first cross plate and the second cross plate. A "T" - shaped anti - detachment block is also fixedly connected to the adjusting frame. Plug plates penetrate through the inside of the first cross plate and the second cross plate. Three magnetic blocks are fixedly connected to the plug plates. Anti - detachment grooves are formed on the side wall of the anti - slip iron plate, and second grooves are formed on the top and bottom of the anti - slip iron plate. A third groove communicating with the second groove is also formed inside the anti - slip iron plate.
[0012] Optionally, the plug plate is slidably connected to the inside of the second groove, the magnetic block is slidably connected to the inside of the third groove, and the anti - detachment block is slidably connected to the inside of the anti - detachment groove.
[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. The tightening mechanism can automatically clamp both sides of the nut, enabling it to be applicable to the disassembly and assembly of nuts of different sizes. Moreover, there is no need for manual clamping and loosening. Even in areas with a relatively deep position, the quick clamping of the nut can be completed, so its applicable range is not restricted, the clamping efficiency is improved, and this tightening mechanism can tighten the nut according to the torque size to prevent the nut from loosening after installation. At the same time, the fastening head and the handle are connected in a hinged form, enabling it to be applicable to the disassembly and assembly of nuts in a narrow range, and the applicable range is significantly improved.
[0014] 2. The fine adjuster can control the up and down movement of the torque sensor, facilitating the adjustment of the torque sensor to the center position of the nut for disassembly and assembly, making the measurement of the tightening torque of the nut by the torque sensor more accurate and facilitating the actual installation of the nut.
[0015] 3. The plug-in and unplugging mechanism can facilitate the adjustment of the stretching length of the adjusting frame. After adjusting the stretching length of the adjusting frame, it can be applicable to the disassembly and assembly of nuts in a deeper position, avoiding problems such as the inability to actually disassemble and assemble the nut due to its relatively deep position. Moreover, the plug-in and unplugging mechanism has a fast adjustment speed, is convenient for actual operation, and is more efficient to adjust.
[0016] 4. The anti-slip device can increase the anti-slip effect when the user holds the adjusting frame, preventing sliding during the disassembly and assembly of the nut and affecting its normal use. Moreover, the anti-slip iron plate is convenient for disassembly and assembly. When it is damaged, it is convenient to maintain and replace the corresponding components, reducing costs. And the plugging and sucking method can speed up the disassembly and assembly of the anti-slip iron plate, greatly shortening the disassembly and assembly time. Description of the Drawings
[0017] Figure 1 It is a schematic diagram of the overall structure of an automotive repair wrench according to the present invention; Figure 2 It is a partial cross-sectional view of an automotive repair wrench according to the present invention; Figure 3 It is a cross-sectional view of the fastening head in an automotive repair wrench according to the present invention; Figure 4 It is a schematic diagram of the structure of the tightening mechanism in an automotive repair wrench according to the present invention; Figure 5 It is a schematic diagram of the structure of the fine adjuster in an automotive repair wrench according to the present invention; Figure 6 It is a schematic diagram of the structure of the handle in an automotive repair wrench according to the present invention; Figure 7 It is a schematic diagram of the structure of the plug-in and unplugging mechanism in an automotive repair wrench according to the present invention; Figure 8 It is a schematic diagram of the structure of the anti-slip device in an automotive repair wrench according to the present invention; Figure 9Schematic structural diagram of the anti-slip iron plate in an automotive repair wrench according to the present invention; Figure 10 Schematic structural diagram of the plug-in plate in an automotive repair wrench according to the present invention.
[0018] In the figure: 1. Handle; 11. First groove; 12. Guide groove; 2. Adjusting frame; 3. Tightening head; 31. Limiting groove; 4. Insertion hole; 5. Tightening mechanism; 51. Fixed block; 511. Vertical rod; 512. Sleeve; 52. First bracket; 53. Second bracket; 54. Connecting frame; 55. Third bracket; 56. Clamping seat; 561. Sliding groove; 562. Limiting block; 563. Support block; 57. Electric push rod; 58. Fine adjuster; 581. First locking block; 582. Second locking block; 583. Screw; 584. Displacement block; 585. Slider; 586. Clamping plate; 587. Torque sensor; 6. Plugging and unplugging mechanism; 61. First protective plate; 62. Second protective plate; 63. First adjusting rod; 631. Second adjusting rod; 64. First connecting rod; 65. Second connecting rod; 66. First disc; 67. Second disc; 68. Guide rod; 69. Round rod; 691. Spring; 7. Anti-slip device; 71. First horizontal plate; 72. Second horizontal plate; 73. Anti-slip iron plate; 74. Anti-detachment block; 75. Plug-in plate; 76. Magnet; 77. Anti-detachment groove; 78. Second groove; 79. Third groove. Detailed implementation manners
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0020] Please refer to Figures 1 to 10 , the present invention provides an automotive repair wrench, including a handle 1. A first groove 11 runs through the inside of the handle 1, and a guide groove 12 communicating with the first groove 11 is also formed inside the handle 1. An adjusting frame 2 is slidably sleeved at the bottom of the handle 1, and a tightening head 3 is hinged to the top of the handle 1. A button and a display screen are fixedly connected to the rear surface of the adjusting frame 2. A plurality of groups of insertion holes 4 are formed on both sides of the adjusting frame 2. A tightening mechanism 5 is installed inside the tightening head 3. A plugging and unplugging mechanism 6 is installed inside the first groove 11. A plurality of groups of anti-slip devices 7 are installed on both sides of the adjusting frame 2.
[0021] The tightening mechanism 5 includes a fixed block 51, a first bracket 52 and a second bracket 53. Two fixed blocks 51 are fixedly connected inside the fastening head 3. A vertical rod 511 is fixedly connected between the two fixed blocks 51. A sleeve 512 is slidably sleeved outside the vertical rod 511. First brackets 52 are hinged on both sides of the sleeve 512. One end of the first bracket 52 is hinged with a second bracket 53. One end of the second bracket 53 is fixedly connected with a connecting frame 54. The top end of the connecting frame 54 is hinged with a third bracket 55. One end of the third bracket 55 is hinged with a clamping seat 56. A chute 561 runs through the inside of the clamping seat 56, and limiting blocks 562 are fixedly connected to the front and rear surfaces of the clamping seat 56. Two supporting blocks 563 are also fixedly connected to the inner wall of the clamping seat 56. The two supporting blocks 563 can support the two inclined surfaces at the bottom of the nut, so that the nut is not easily loosened during disassembly. The bottom end of the connecting frame 54 is hinged with an electric push rod 57. A fine adjuster 58 is installed on the clamping seat 56. The first bracket 52, the second bracket 53, the connecting frame 54, the third bracket 55, the clamping seat 56, the chute 561 and the limiting blocks 562 are all symmetrically distributed with the central axis of the fastening head 3 as the reference. The fixed end of the electric push rod 57 is hinged on one of the connecting frames 54, and the telescopic end of the electric push rod 57 is hinged on the other connecting frame 54. The center point of the connecting frame 54 is rotationally connected to the inside of the fastening head 3 through a pin shaft. The limiting blocks 562 are slidably connected to the inside of the limiting groove 31. The tightening mechanism 5 can automatically clamp both sides of the nut, making it applicable to the disassembly and assembly of nuts of different sizes. Moreover, there is no need for manual clamping and loosening. Even in a relatively deep area, the nut can be quickly clamped, so that its application range is not limited, the clamping efficiency is improved, and the tightening mechanism 5 can tighten the nut according to the torque size to prevent the nut from loosening after installation. At the same time, the fastening head 3 and the handle 1 are connected in a hinged form, so that it is applicable to the disassembly and assembly of nuts in a narrow range, and the application range is significantly improved.
[0022] The fine adjuster 58 includes a first locking block 581, a second locking block 582 and a screw rod 583. The first locking block 581 and the second locking block 582 are fixedly connected to the outer side wall of the clamping seat 56. The screw rod 583 penetrates through the inside of the first locking block 581. A displacement block 584 is threadedly sleeved outside the screw rod 583. A slider 585 is fixedly connected to the displacement block 584. One end of the slider 585 is fixedly connected with a clamping plate 586. A torque sensor 587 is fixedly connected to the clamping plate 586. The slider 585 is slidably connected to the inside of the chute 561. The bottom end of the screw rod 583 is rotationally connected to the second locking block 582 through a bearing. The fine adjuster 58 can control the up and down movement of the torque sensor 587, which is convenient to adjust the torque sensor 587 to the center position of the nut for disassembly and assembly, making the measurement of the tightening torque of the nut by the torque sensor 587 more accurate and facilitating the actual installation of the nut.
[0023] The plugging and unplugging mechanism 6 includes a first protective plate 61, a second protective plate 62 and a first adjusting rod 63. The first protective plate 61 and the second protective plate 62 are fixedly connected inside the first groove 11. The first adjusting rod 63 penetrates through the inside of the second protective plate 62. A second adjusting rod 631 is fixedly penetrated inside the first adjusting rod 63. The two ends of the second adjusting rod 631 are respectively movably connected to a first connecting rod 64 and a second connecting rod 65. One end of the first connecting rod 64 is movably connected to a first disc 66. One end of the second connecting rod 65 is movably connected to a second disc 67. Guide rods 68 are fixedly connected to the top and bottom of the first disc 66 and the top and bottom of the second disc 67. Round rods 69 are fixedly connected to both the first disc 66 and the second disc 67. A spring 691 is sleeved outside the round rod 69. One end of the first adjusting rod 63 is rotatably connected to the first protective plate 61 through a bearing. The guide rod 68 is slidably connected inside the guide groove 12. The round rod 69 is inserted into the jack 4. The first connecting rod 64 and the second connecting rod 65 are equal in size, and the inclination angles of the first connecting rod 64 and the second connecting rod 65 are equal. The number of the springs 691 is two. One end of one spring 691 is fixedly connected to the first disc 66, and the other end is fixedly connected to a side wall of the first groove 11. One end of the other spring 691 is fixedly connected to the second disc 67, and the other end is fixedly connected to the other side wall of the first groove 11. The plugging and unplugging mechanism 6 can facilitate the adjustment of the stretching length of the adjusting frame 2. After adjusting the stretching length of the adjusting frame 2, it can be applied to the disassembly and assembly work of nuts in deeper positions, avoiding problems such as the inability to actually disassemble and assemble the nuts due to their deep positions. Moreover, the plugging and unplugging mechanism 6 has a fast adjustment speed, is convenient for actual operation, and is more efficient to adjust.
[0024] The anti-slip device 7 includes a first horizontal plate 71, a second horizontal plate 72 and an anti-slip iron plate 73. The first horizontal plate 71 and the second horizontal plate 72 are fixedly connected to the adjusting frame 2. An anti-slip iron plate 73 is installed between the first horizontal plate 71 and the second horizontal plate 72. A "T" - shaped anti - detachment block 74 is also fixedly connected to the adjusting frame 2. Insertion plates 75 penetrate through the interiors of both the first horizontal plate 71 and the second horizontal plate 72. Three magnetic blocks 76 are fixedly connected to the insertion plates 75. An anti - detachment groove 77 is formed on the side wall of the anti - slip iron plate 73, and second grooves 78 are formed at both the top and the bottom of the anti - slip iron plate 73. A third groove 79 communicating with the second groove 78 is also formed inside the anti - slip iron plate 73. The insertion plate 75 is slidably connected to the inside of the second groove 78, the magnetic block 76 is slidably connected to the inside of the third groove 79, and the anti - detachment block 74 is slidably connected to the inside of the anti - detachment groove 77, which can prevent the longitudinal slip of the anti - slip iron plate 73. After the magnetic block 76 moves into the third groove 79, it can firmly attract and hold it, preventing the transverse slip of the anti - slip iron plate 73. The anti - slip device 7 can increase the anti - slip effect when the user holds the adjusting frame 2, prevent sliding during the disassembly and assembly of the nut, affecting its normal use. Moreover, the anti - slip iron plate 73 is convenient for disassembly and assembly. When it is damaged, it is convenient to maintain it and replace the corresponding components, reducing the cost. And the use of the plug - in and suction methods can speed up the disassembly and assembly work of the anti - slip iron plate 73, greatly shortening the disassembly and assembly time.
[0025] Working principle: When using this device, hold one end of the first adjusting rod 63 and reverse it. At this time, it can drive the first connecting rod 64 and the second connecting rod 65 to move, and then can drive the first disc 66 and the second disc 67 to move relatively. After the first disc 66 and the second disc 67 move relatively, they can drive the two round rods 69 to move relatively until one end of the round rod 69 moves out of the jack 4. Then hold the adjusting frame 2 and pull it downward. When the round rod 69 is adjusted to the ideal jack 4, release the first adjusting rod 63. Under the action of the spring 691, it can drive the two round rods 69 to move in the opposite direction until the round rod 69 moves into the jack 4. At this time, the adjusting frame 2 can be adjusted to the ideal length for actual use. Then move the two clamping seats 56 to both sides of the nut, and hold the screw rod 583 and rotate it forward and backward. By rotating the screw rod 583 forward and backward, it can drive the displacement block 584, the slider 585, the clamping plate 586 and the torque sensor 587 to move up and down, facilitating the adjustment of the torque sensor 587 to the center position of the nut to apply torque to it, making the measurement of the tightening torque of the nut by the torque sensor 587 more accurate and facilitating the actual installation of the nut. Then press the button to control the electric push rod 57 to extend. At this time, the included angle between the two connecting frames 54 becomes smaller. Under the action of the second bracket 53 and the first bracket 52, it can drive the sleeve 512 to move downward. At the same time, under the action of the third bracket 55, it can drive the two clamping seats 56 to move relatively, so as to clamp the nut. Then the user puts the finger into the anti - slip iron plate 73. At this time, the adjusting frame 2 can be held, and then rotate clockwise or counterclockwise to complete the disassembly and assembly of the nut.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automobile repair wrench, comprising a handle (1), characterized in that: The handle (1) has a first groove (11) extending therethrough, and a guide groove (12) communicating with the first groove (11) is also provided therein; an adjusting frame (2) is provided on a sliding sleeve at the bottom of the handle (1), and a fastening head (3) is hingedly connected to the top of the handle (1); a plurality of groups of jacks (4) are provided on both sides of the adjusting frame (2); a tightening mechanism (5) is installed inside the fastening head (3); a plug-in mechanism (6) is installed inside the first groove (11), and a plurality of groups of anti-slip devices (7) are installed on both sides of the adjusting frame (2); The tightening mechanism (5) comprises a fixing block (51), a first bracket (52) and a second bracket (53); the two fixing blocks (51) are fixedly connected inside the tightening head (3); a vertical rod (511) is fixedly connected between the two fixing blocks (51); a sleeve (512) is provided on the outside of the vertical rod (511); the first bracket (52) is hingedly connected to one end of the first bracket (52); and the second bracket (53) is hingedly connected to one end of the second bracket (53). A connecting frame (54), the top end of the connecting frame (54) is hingedly connected to a third bracket (55), one end of the third bracket (55) is hingedly connected to a clamping seat (56), a slide groove (561) is passed through the inside of the clamping seat (56), and the front and rear surfaces of the clamping seat (56) are fixedly connected to a limit block (562), and a support block (563) is also fixedly connected to the inner wall of the clamping seat (56), an electric push rod (57) is hingedly connected to the bottom end of the connecting frame (54), and a fine adjuster (58) is installed on the clamping seat (56); The plug-in mechanism (6) comprises a first protective plate (61), a second protective plate (62) and a first adjustment rod (63); the first protective plate (61) and the second protective plate (62) are fixedly connected inside the first groove (11); the first adjustment rod (63) runs through the inside of the second protective plate (62); the second adjustment rod (631) is fixedly passed through the inside of the first adjustment rod (63); the first connecting rod (64) and the second connecting rod (65) are movably connected at both ends of the second adjustment rod (631); one end of the first connecting rod (64) is movably connected to the first disc (66); one end of the second connecting rod (65) is movably connected to the second disc (67); the top and bottom of the first disc (66) and the top and bottom of the second disc (67) are fixedly connected to guide rods (68); the first disc (66) and the second disc (67) are fixedly connected to round rods (69); the outer portion of the round rod (69) is provided with a spring (691).
2. The automobile repair wrench according to claim 1, characterized in that: The first bracket (52), the second bracket (53), the connecting frame (54), the third bracket (55), the clamping seat (56), the slide groove (561) and the limit block (562) are all symmetrically distributed with the central axis of the fastening head (3) as a reference, the fixed end of the electric push rod (57) is hinged on one of the connecting frames (54), and the telescopic end of the electric push rod (57) is hinged on the other connecting frame (54).
3. The automobile repair wrench according to claim 1, characterized in that: The center point of the connecting frame (54) is rotatably connected to the interior of the fastening head (3) via a pin shaft, and the limiting block (562) is slidably connected to the interior of the limiting groove (31).
4. The automobile repair wrench according to claim 1, characterized in that: The fine adjuster (58) comprises a first locking block (581), a second locking block (582) and a screw rod (583); the first locking block (581) and the second locking block (582) are fixedly connected to the outer wall of the clamping seat (56); the screw rod (583) passes through the interior of the first locking block (581); a displacement block (584) is provided on the outer thread sleeve of the screw rod (583); a slider (585) is fixedly connected to the displacement block (584); a clamping plate (586) is fixedly connected to one end of the slider (585); and a torque sensor (587) is fixedly connected to the clamping plate (586).
5. The automobile repair wrench according to claim 4, characterized in that: The sliding block (585) is slidably connected inside the sliding groove (561), and the bottom end of the screw rod (583) is rotatably connected to the second locking block (582) via a bearing.
6. The automobile repair wrench according to claim 1, characterized in that: One end of the first adjustment rod (63) is rotatably connected to the first protection plate (61) via a bearing, the guide rod (68) is slidably connected to the inside of the guide groove (12), the round rod (69) is inserted into the inside of the insertion hole (4), the first connecting rod (64) and the second connecting rod (65) are equal in size, and the first connecting rod (64) and the second connecting rod (65) have equal inclination angles.
7. The automobile repair wrench according to claim 1, characterized in that: The number of the springs (691) is two, one end of one of the springs (691) is fixedly connected to the first disc (66), and the other end is fixedly connected to a side wall of the first groove (11), and the other end of the other spring (691) is fixedly connected to the second disc (67), and the other end is fixedly connected to the other side wall of the first groove (11).
8. The automobile repair wrench according to claim 1, characterized in that: The anti-skid device (7) comprises a first transverse plate (71), a second transverse plate (72) and an anti-skid iron plate (73). The first transverse plate (71) and the second transverse plate (72) are fixedly connected to the adjustment frame (2). The anti-skid iron plate (73) is installed between the first transverse plate (71) and the second transverse plate (72). A "T"-shaped anti-slip block (74) is also fixedly connected to the adjustment frame (2). The first transverse plate (71) and the second transverse plate (72) are both penetrated by a plug plate (75). Three magnetic blocks (76) are fixedly connected to the plug plate (75). An anti-slip groove (77) is provided on the side wall of the anti-skid iron plate (73). A second groove (78) is provided on the top and bottom of the anti-skid iron plate (73). A third groove (79) communicating with the second groove (78) is also provided inside the anti-skid iron plate (73).
9. The automobile repair wrench according to claim 8, characterized in that: The plug plate (75) is slidably connected inside the second groove (78), the magnetic block (76) is slidably connected inside the third groove (79), and the anti-slip block (74) is slidably connected inside the anti-slip groove (77).