Automobile maintenance wrench
By combining a tightening mechanism, a plugging and unplugging mechanism, and an anti-slip device, the problem of difficult installation and removal of nuts in deep positions with traditional wrenches is solved. Automatic clamping, fine adjustment, and anti-slip are achieved, expanding the scope of application and improving operating efficiency and accuracy.
Patent Information
- Application Number
- CN202520733182.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Traditional wrenches require manual adjustment when installing or removing nuts in deep positions, limiting their applicability and making it difficult to accurately measure torque.
It adopts a combination design of tightening mechanism, insertion and removal mechanism and anti-slip device to realize automatic clamping, fine adjustment and anti-slip function, and is suitable for the disassembly and assembly of nuts of different sizes and depths.
It achieves automatic clamping and fine-tuning, expands the scope of application, improves clamping efficiency, accurately measures torque, has a good anti-slip effect, and reduces the difficulty and cost of operation.
Smart Images

Figure CN223947794U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile maintenance, in particular to a kind of automobile maintenance wrench. BACKGROUND
[0002] Wrench is a kind of commonly used installation and disassembly tool, is the hand tool of the open or sleeve hole fastener of bolt, screw, nut by lever principle screwing.The wrench is usually made of structural steel of carbon or alloy material, during the process of automobile maintenance, often need to use wrench to disassemble and assemble some bolts or nuts, however, the traditional wrench mostly needs manual adjustment to clamp nut, when the position of nut is deeper, staff is difficult to clamp nut by hand adjustment, and the scope of application is limited. SUMMARY
[0003] The utility model aims at providing a kind of automobile maintenance wrench to solve the problems in the above background.
[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of automobile maintenance wrench, including handle, the inside of handle is through with first recess, the inside of handle is also provided with the guide slot of the intercommunication of first recess, the bottom of handle is slidably covered with adjusting frame, and the top of handle is hingedly connected with fastening head, the two sides of adjusting frame are all provided with multiple jack, the inside of fastening head is installed with screwing mechanism, the inside of first recess is installed with plug-in mechanism, the two sides of adjusting frame are all installed with multiple anti-skid device;
[0005] The screwing mechanism includes fixed block, first support and second support, the inside of fastening head is fixedly connected with two fixed blocks, two fixed blocks are fixedly connected with vertical rod between, vertical rod is slidably covered with sleeve on the outside, the two sides of sleeve are hingedly connected with first support, one end of first support is hingedly connected with second support, one end of second support is fixedly connected with connecting frame, the top of connecting frame is hingedly connected with third support, one end of third support is hingedly connected with clamping seat, the inside of clamping seat is through with sliding slot, and the front and rear surfaces of clamping seat are both fixedly connected with limit block, support block is also fixedly connected on the inner wall of clamping seat, the bottom of connecting frame is hingedly connected with electric push rod, and microadjuster is installed on clamping seat;
[0006] The plug-in mechanism includes first protective plate, second protective plate and first adjusting rod, the inside of first recess is fixedly connected with first protective plate and second protective plate, the inside of second protective plate is penetrated with first adjusting rod, second adjusting rod is fixedly penetrated in the inside of first adjusting rod, the two ends of second adjusting rod are movably connected with first link rod and second link rod respectively, one end of first link rod is movably connected with first disc, one end of second link rod is movably connected with second disc, the top and bottom of first disc and the top and bottom of second disc are all fixedly connected with guide rod, circular rod is fixedly connected on first disc and second disc, and spring is covered with circular rod on the outside.
[0007] Optionally, the first support, the second support, the connecting support, the third support, the clamping seat, the sliding groove and the limiting block are symmetrically distributed with the central axis of the fastening head as the reference, the fixed end of the electric push rod is hinged to one of the connecting supports, and the telescopic end of the electric push rod is hinged to the other connecting support.
[0008] Optionally, the center point of the connecting support is rotationally connected to the inside of the fastening head through a pin shaft, and the limiting block is slidingly connected to the inside of the limiting groove.
[0009] Optionally, the fine adjuster comprises a first lock block, a second lock block and a screw rod, the first lock block and the second lock block are fixedly connected to the outer side wall of the clamping seat, the inside of the first lock block penetrates the screw rod, the outside of the screw rod is threadedly sleeved with a displacement block, the displacement block is fixedly connected with a sliding block, one end of the sliding block is fixedly connected with a clamping plate, and the clamping plate is fixedly connected with a torsion sensor.
[0010] Optionally, the sliding block is slidingly connected to the inside of the sliding groove, and the bottom end of the screw rod is rotationally connected to the second lock block through a bearing.
[0011] Optionally, one end of the first adjusting rod is rotationally connected to the first protective plate through a bearing, the guide rod is slidingly connected to the inside of the guide groove, the round rod is inserted into the insertion hole, the first connecting rod and the second connecting rod are equal in size, and the first connecting rod and the second connecting rod are equal in inclination angle.
[0012] Optionally, the number of the springs is two, one end of one of the springs is fixedly connected to the first disc, the other end of the spring is fixedly connected to one side wall of the first recess, one end of the other spring is fixedly connected to the second disc, and the other end of the spring is fixedly connected to the other side wall of the first recess.
[0013] Optionally, the anti-skid device comprises a first horizontal plate, a second horizontal plate and an anti-skid iron plate, the first horizontal plate and the second horizontal plate are fixedly connected to the adjusting frame, the anti-skid iron plate is installed between the first horizontal plate and the second horizontal plate, a "T"-shaped anti-falling block is also fixedly connected to the adjusting frame, the inside of the first horizontal plate and the second horizontal plate penetrates an insertion plate, the insertion plate is fixedly connected with three magnetic blocks, an anti-falling groove is formed in the side wall of the anti-skid iron plate, second recesses are formed in the top and the bottom of the anti-skid iron plate, and a third recess that is in communication with the second recesses is also formed in the inside of the anti-skid iron plate.
[0014] Optionally, the insertion plate is slidingly connected to the inside of the second recess, the magnetic blocks are slidingly connected to the inside of the third recess, and the anti-falling block is slidingly connected to the inside of the anti-falling groove.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] 1. The tightening mechanism can automatically clamp both sides of the nut, making it suitable for the installation and removal of nuts of different sizes. It eliminates the need for manual clamping and loosening, and can quickly clamp nuts even in deep areas, thus limiting its applicability and improving clamping efficiency. Furthermore, the tightening mechanism can tighten the nut according to the torque, preventing it from loosening after installation. The fastening head and handle are connected by a hinge, making it suitable for nut installation and removal in confined spaces, significantly expanding its applicability.
[0017] 2. The fine-tuner can control the torque sensor to move up and down, making it easy to adjust the torque sensor to the center position of the nut for disassembly and assembly. This makes the torque sensor more accurate in measuring the tightening torque of the nut, which is convenient for actual installation of the nut.
[0018] 3. The insertion and removal mechanism can easily adjust the extension length of the adjustment bracket. By adjusting the extension length of the adjustment bracket, it can be used for the disassembly and assembly of nuts in deeper positions, avoiding problems such as the inability to disassemble or assemble nuts due to their deep positions. Moreover, the insertion and removal mechanism has a fast adjustment speed, which is convenient for actual operation and makes adjustment more efficient.
[0019] 4. The anti-slip device can increase the anti-slip effect when the user holds the adjustment frame, preventing slippage during the installation and removal of the nut and affecting its normal use. Moreover, the anti-slip plate is easy to install and remove, and when it is damaged, it is easy to maintain and replace the corresponding parts, reducing costs. The use of plug-in and magnetic engagement can speed up the installation and removal of the anti-slip plate, greatly shortening the installation and removal time. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of an automotive repair wrench according to the present invention;
[0021] Figure 2 This is a partial sectional view of an automotive repair wrench according to the present invention;
[0022] Figure 3 This is a cross-sectional view of the fastening head in a car repair wrench according to the present invention;
[0023] Figure 4 This is a schematic diagram of the tightening mechanism in an automotive repair wrench according to the present invention;
[0024] Figure 5 This is a schematic diagram of the structure of a fine-tuning device in an automotive repair wrench according to the present invention;
[0025] Figure 6 This is a schematic diagram of the structure of the handle of an automotive repair wrench according to this utility model;
[0026] Figure 7A structure schematic view of the plug-in mechanism in the automobile maintenance wrench;
[0027] Figure 8 A structure schematic view of the anti-skid device in the automobile maintenance wrench;
[0028] Figure 9 A structure schematic view of the anti-skid iron plate in the automobile maintenance wrench;
[0029] Figure 10 A structure schematic view of the plug-in plate in the automobile maintenance wrench.
[0030] In the figure: 1, handle; 11, first recess; 12, guide groove; 2, adjusting frame; 3, fastening head; 31, limiting groove; 4, insertion hole; 5, screwing mechanism; 51, fixed block; 511, vertical rod; 512, sleeve; 52, first support; 53, second support; 54, connecting frame; 55, third support; 56, clamping seat; 561, sliding groove; 562, limiting block; 563, supporting block; 57, electric push rod; 58, fine adjuster; 581, first locking block; 582, second locking block; 583, screw rod; 584, displacement block; 585, sliding block; 586, clamping plate; 587, torsion sensor; 6, plug-in 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-skid device; 71, first horizontal plate; 72, second horizontal plate; 73, anti-skid iron plate; 74, anti-falling block; 75, plug-in plate; 76, magnetic block; 77, anti-falling groove; 78, second recess; 79, third recess. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.
[0032] Please refer to Figures 1 to 10The utility model provides a kind of automobile maintenance wrench, including handle 1, the inside of handle 1 is through with first recess 11, the inside of handle 1 is also provided with the guide groove 12 being communicated with first recess 11, the bottom of handle 1 is slidably sleeved with adjusting frame 2, and the top of handle 1 is hingedly connected with fastening head 3, button and display screen are fixedly connected on the rear surface of adjusting frame 2, a plurality of jack plugs 4 are formed in the both sides of adjusting frame 2, fastening head 3 is internally provided with screwing mechanism 5, first recess 11 is internally provided with plug-in mechanism 6, a plurality of anti-skid devices 7 are mounted on the both sides of adjusting frame 2.
[0033] Screwing mechanism 5 includes fixed block 51, first support 52 and second support 53, two fixed blocks 51 are fixedly connected in the inside of fastening head 3, vertical rod 511 is fixedly connected between the two fixed blocks 51, sleeve 512 is slidably sleeved on the outside of vertical rod 511, first support 52 is hingedly connected on the both sides of sleeve 512, second support 53 is hingedly connected on one end of first support 52, connecting frame 54 is fixedly connected on one end of second support 53, third support 55 is hingedly connected on the top of connecting frame 54, clamping seat 56 is hingedly connected on one end of third support 55, sliding slot 561 is through in the inside of clamping seat 56, and limit block 562 is fixedly connected on the front and rear surfaces of clamping seat 56, support block 563 is also fixedly connected on the inner wall of clamping seat 56, the number of support block 563 is 2, the two inclined surfaces at the bottom of nut can be supported by the two support blocks 563, so that the nut is not prone to looseness when disassembling, electric push rod 57 is hingedly connected on the bottom end of connecting frame 54, micro-adjuster 58 is mounted on clamping seat 56, first support 52, second support 53, connecting frame 54, third support 55, clamping seat 56, sliding slot 561 and limit block 562 are symmetrically distributed with the central axis of fastening head 3 as reference, the fixed end of electric push rod 57 is hingedly connected on one of connecting frame 54, and the telescopic end of electric push rod 57 is hingedly connected on the other connecting frame 54, the center point of connecting frame 54 is rotationally connected in the inside of fastening head 3 through pin shaft, limit block 562 is slidably connected in the inside of limiting groove 31, screwing mechanism 5 can automatically clamp the two sides of nut, so that it can be applied to nut disassembly of different sizes, and manual clamping and loosening is not required, even in the area of deep position, the fast clamping work of nut can be completed, so that the application range is not limited, the clamping efficiency is improved, and the screwing mechanism 5 can tighten the nut according to the size of torsion, prevent the nut from loosening after installation, and the fastening head 3 and handle 1 are connected in hinged form, so that it can be applied to nut disassembly in narrow range, and the application range is significantly improved.
[0034] The fine tuner 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 fixed on the outer side wall of the clamping seat 56, the screw rod 583 penetrates through the inside of the first locking block 581, the displacement block 584 is sleeved on the outside of the screw rod 583 in a threaded mode, the sliding block 585 is fixed on the displacement block 584, one end of the sliding block 585 is fixed with the clamping plate 586, the torsion sensor 587 is fixed on the clamping plate 586, the sliding block 585 is slidingly connected in the inside of the sliding groove 561, and the bottom end of the screw rod 583 is rotatably connected to the second locking block 582 through a bearing. The fine tuner 58 can control the torsion sensor 587 to move up and down, so that the torsion sensor 587 is adjusted to the center position of the nut for disassembly, the torsion sensor 587 can measure the tightening torque of the nut more accurately, and the actual installation of the nut is facilitated.
[0035] The plug-pull mechanism 6 comprises 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 fixed in the inside of the first recess 11, the first adjusting rod 63 penetrates through the inside of the second protective plate 62, the second adjusting rod 631 is fixedly penetrated in the inside of the first adjusting rod 63, the first connecting rod 64 and the second connecting rod 65 are movably connected to the two ends of the second adjusting rod 631 respectively, the first disc 66 is movably connected to one end of the first connecting rod 64, the second disc 67 is movably connected to one end of the second connecting rod 65, the guide rod 68 is fixed to the top and the bottom of the first disc 66 and the top and the bottom of the second disc 67, the round rod 69 is fixed to the first disc 66 and the second disc 67, the spring 691 is sleeved on the outside of 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 slidingly connected in 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 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 of the springs 691 is fixed to the first disc 66, the other end is fixed to one side wall of the first recess 11, one end of the other spring 691 is fixed to the second disc 67, and the other end is fixed to the other side wall of the first recess 11, the plug-pull mechanism 6 can conveniently adjust the stretching length of the adjusting frame 2, the adjusting frame 2 can be adjusted in length after adjustment, and can be suitable for nut disassembly work in a deeper position, so that the nut cannot be actually disassembled due to the deep position, and the like are avoided, the plug-pull mechanism 6 has a fast adjustment speed, is convenient for actual operation, and is more efficient in adjustment.
[0036] The anti-skid device 7 comprises a first horizontal plate 71, a second horizontal plate 72 and an anti-skid iron plate 73, the first horizontal plate 71 and the second horizontal plate 72 are fixed on the adjusting frame 2, the anti-skid iron plate 73 is installed between the first horizontal plate 71 and the second horizontal plate 72, a 'T'-shaped anti-escape block 74 is also fixed on the adjusting frame 2, the first horizontal plate 71 and the second horizontal plate 72 are both internally penetrated by an insertion plate 75, the insertion plate 75 is fixed with three magnetic blocks 76, an anti-escape groove 77 is formed in the sidewall of the anti-skid iron plate 73, the top and the bottom of the anti-skid iron plate 73 are both provided with a second groove 78, the inside of the anti-skid iron plate 73 is also provided with a third groove 79 which is communicated with the second groove 78, the insertion plate 75 is slidingly connected in the second groove 78, the magnetic blocks 76 are slidingly connected in the third groove 79, and the anti-escape block 74 is slidingly connected in the anti-escape groove 77, which can prevent the anti-skid iron plate 73 from longitudinally sliding, and the magnetic blocks 76 can be firmly attracted in the third groove 79, preventing the anti-skid iron plate 73 from transversely sliding, the anti-skid device 7 can increase the anti-skid effect when the user holds the adjusting frame 2, preventing the nut from sliding when disassembling and affecting its normal use, and the anti-skid iron plate 73 is convenient to disassemble and assemble, which is convenient to maintain and replace the corresponding parts when damaged, reducing the cost, and the insertion and attraction can speed up the disassembly and assembly of the anti-skid iron plate 73, greatly shortening the disassembly and assembly time.
[0037] Working principle: when using the device, the first end of the first adjusting rod 63 is held and reversed, at this time, the first connecting rod 64 and the second connecting rod 65 can be driven to move, and then the first disc 66 and the second disc 67 can be driven to move relative to each other, and after the first disc 66 and the second disc 67 move relative to each other, the two round rods 69 can be driven to move relative to each other, until one end of the round rod 69 moves out of the insertion hole 4, then the adjusting frame 2 is pulled towards the bottom, when the round rod 69 is adjusted to the ideal insertion hole 4, the first adjusting rod 63 is loosened, under the action of the spring 691, the two round rods 69 can move in opposite directions, until the round rod 69 moves into the insertion hole 4, at this time, the adjusting frame 2 can be adjusted to the ideal length for actual use, then the two clamping seats 56 are moved to the two sides of the nut, and the screw rod 583 is held and rotated clockwise or counterclockwise, the screw rod 583 is rotated clockwise or counterclockwise, thereby driving the displacement block 584, the sliding block 585, the clamping plate 586 and the torsion sensor 587 to move up and down, which is convenient to adjust the torsion sensor 587 to the center position of the nut to exert a torsion force on the nut, so that the torsion sensor 587 can measure the tightening torsion force of the nut more accurately, and it is convenient to actually install the nut, then the push button is pressed to control the electric push rod 57 to extend, at this time, the included angle of the two connecting frames 54 is smaller, under the action of the second support 53 and the first support 52, the sleeve 512 can be driven to move downwards, and under the action of the third support 55, the two clamping seats 56 can be driven to move relative to each other, thereby clamping the nut, then the user puts his fingers into the anti-skid iron plate 73, at this time, the adjusting frame 2 can be held, then clockwise or counterclockwise rotation can complete the disassembly and assembly of the nut.
[0038] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.
Claims
1. A spanner for automotive repair, comprising a handle (1), characterized in that, The inside of the handle (1) is through the first groove (11), the inside of the handle (1) is also provided with the guide slot (12) communicated with the first groove (11), the bottom of the handle (1) is slidably sleeved with the adjusting frame (2), and the top of the handle (1) is hingedly connected with the fastening head (3), a plurality of jack plugs (4) are formed in the two sides of the adjusting frame (2), the inside of the fastening head (3) is provided with the screwing mechanism (5), the inside of the first groove (11) is provided with the plug-pulling mechanism (6), and a plurality of anti-skid devices (7) are mounted on the two sides of the adjusting frame (2). The screwing mechanism (5) comprises a fixed block (51), a first support (52) and a second support (53), the inside of the fastening head (3) is fixedly connected with two fixed blocks (51), the two fixed blocks (51) are fixedly connected with a vertical rod (511), the outside of the vertical rod (511) is slidably sleeved with a sleeve (512), the two sides of the sleeve (512) are hingedly connected with the first supports (52), one end of the first support (52) is hingedly connected with the second support (53), one end of the second support (53) is fixedly connected with a connecting frame (54), the top of the connecting frame (54) is hingedly connected with a third support (55), one end of the third support (55) is hingedly connected with a clamping seat (56), the inside of the clamping seat (56) is through a sliding groove (561), and the front and rear surfaces of the clamping seat (56) are fixedly connected with limit blocks (562), and a supporting block (563) is further fixedly connected to the inner wall of the clamping seat (56), the bottom end of the connecting frame (54) is hingedly connected with an electric push rod (57), and a fine adjuster (58) is mounted on the clamping seat (56). The plug-pulling mechanism (6) comprises a first protective plate (61), a second protective plate (62) and a first adjusting rod (63), the inside of the first groove (11) is fixedly connected with the first protective plate (61) and the second protective plate (62), the inside of the second protective plate (62) is through the first adjusting rod (63), the inside of the first adjusting rod (63) is fixedly through the second adjusting rod (631), the two ends of the second adjusting rod (631) are movably connected with the first link rod (64) and the second link rod (65), one end of the first link rod (64) is movably connected with the first disc (66), one end of the second link rod (65) is movably connected with 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 with guide rods (68), and the first disc (66) and the second disc (67) are fixedly connected with a round rod (69), and the outside of the round rod (69) is sleeved with a spring (691).
2. The automotive repair wrench of claim 1, wherein, The first support (52), the second support (53), the connecting frame (54), the third support (55), the clamping seat (56), the sliding groove (561) and the limit block (562) are symmetrically distributed with the central axis of the fastening head (3) as the reference, the fixed end of the electric push rod (57) is hingedly connected to one of the connecting frames (54), and the telescopic end of the electric push rod (57) is hingedly connected to the other connecting frame (54).
3. The automotive repair wrench of claim 1, wherein, The center point of the connecting frame (54) is rotatably connected in the inside of the fastening head (3) through a pin shaft, and the limiting block (562) is slidably connected in the inside of the limiting groove (31).
4. The automotive repair wrench of claim 1, wherein, The micro-adjuster (58) comprises a first locking block (581), a second locking block (582) and a screw rod (583), the outer side wall of the clamping seat (56) is fixedly connected with the first locking block (581) and the second locking block (582), the inside of the first locking block (581) penetrates through the screw rod (583), the outside of the screw rod (583) is threadedly sleeved with a displacement block (584), the displacement block (584) is fixedly connected with a sliding block (585), one end of the sliding block (585) is fixedly connected with a clamping plate (586), and the clamping plate (586) is fixedly connected with a torsion sensor (587).
5. The automotive repair wrench of claim 4, wherein, The sliding block (585) is slidably connected in the inside of the sliding groove (561), and the bottom end of the screw rod (583) is rotatably connected on the second locking block (582) through a bearing.
6. The automotive repair wrench of claim 1, wherein, One end of the first adjusting rod (63) is rotatably connected on the first protective plate (61) through a bearing, the guide rod (68) is slidably connected in the inside of the guide groove (12), the round rod (69) is inserted in the inside of the insertion hole (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.
7. The automotive repair wrench of claim 1, wherein, The number of the springs (691) is two, one end of one of the springs (691) is fixedly connected on the first disc (66), the other end is fixedly connected on one side wall of the first recess (11), one end of the other spring (691) is fixedly connected on the second disc (67), and the other end is fixedly connected on the other side wall of the first recess (11).
8. The automotive repair wrench of claim 1, wherein, The anti-skid device (7) comprises a first horizontal plate (71), a second horizontal plate (72) and an anti-skid iron plate (73), the first horizontal plate (71) and the second horizontal plate (72) are fixedly connected on the adjusting frame (2), the anti-skid iron plate (73) is installed between the first horizontal plate (71) and the second horizontal plate (72), a "T"-shaped anti-falling block (74) is also fixedly connected on the adjusting frame (2), the inside of the first horizontal plate (71) and the second horizontal plate (72) penetrates through an insertion plate (75), three magnetic blocks (76) are fixedly connected on the insertion plate (75), an anti-falling groove (77) is formed in the side wall of the anti-skid iron plate (73), second recesses (78) are formed in the top and the bottom of the anti-skid iron plate (73), and a third recess (79) is formed in the inside of the anti-skid iron plate (73) and communicates with the second recess (78).
9. The automotive repair wrench of claim 8, wherein, The insertion plate (75) is slidably connected in the inside of the second recess (78), the magnetic blocks (76) are slidably connected in the inside of the third recess (79), and the anti-falling block (74) is slidably connected in the inside of the anti-falling groove (77).