A maintenance tool with anti-skid function

Abstract

The present application relates to a kind of maintenance tools with anti-skid function in the technical field of vehicle maintenance tool, including spanner handle and spanner head, spanner head includes ratchet seat, the middle part of ratchet seat is equipped with ratchet, spanner head also includes fixed seat, ratchet seat is equipped with small sector transmission gear and large sector transmission gear along its circumference, fixed seat is equipped with large sector driving gear and small sector driving gear, large sector driving gear and small sector driving gear are equipped with connecting portion on the side away from ratchet seat.The present application can make maintenance personnel more labor-saving rotate spanner handle, in turn drive ratchet rotation, make more fasten the nut or bolt to be removed to rotate, solve the technical problem that nut or bolt appears rust in the prior art, repair personnel needs to exert great force on spanner, when repair personnel exerts great force on spanner, repair personnel is prone to hand slip phenomenon, leading to spanner is prone to slip from the hand of repair personnel.

Description

Technical Field

[0001] This invention relates to the field of vehicle repair tool technology, and in particular to a repair tool with anti-slip function. Background Technology

[0002] When repairing the bottom of a car, because the bottom of the car is low to the ground, repairmen have to lie flat on a flatbed cart to move to the bottom of the car to carry out the repairs. This often results in the repair tools slipping from the repairmen's hands, posing a risk of the slipping tools falling and hitting the repairmen.

[0003] Analysis revealed the following reasons for the above situations: 1. When a person is lying down, holding a wrench for maintenance (removing nuts or bolts) increases the load on the arm, easily causing arm fatigue and making the wrench slip from the repairman's hand; 2. Due to the inconvenience of accessing the bottom of the car, repairmen cannot clean their hands when they are oily, making them prone to slipping and the wrench slipping from their hand; 3. If the nut or bolt is rusty, the repairman needs to apply a lot of force to the wrench, which can easily cause the wrench to slip from their hand; 4. If the wrench is not properly engaged with the nut or bolt, the wrench head may separate from the nut or bolt, causing the wrench to lose its support point and move axially, making it easy for the wrench to slip from the repairman's hand and fly out; 5. During the process of turning the wrench, the relative rotation between the repairman's hand and the wrench affects the control of the wrench, causing it to slip from the repairman's hand.

[0004] To solve the above problems, we provide a repair tool with anti-slip function. Summary of the Invention

[0005] The purpose of this invention is to provide a repair tool with anti-slip function in order to solve the above-mentioned problems.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A maintenance tool with anti-slip function includes a wrench handle and a wrench head. The wrench head includes a ratchet seat with a ratchet in the middle. The wrench head also includes a fixed seat. The ratchet seat has a small sector-shaped transmission gear and a large sector-shaped transmission gear along its circumference. The ratchet seat is rotatably connected to the middle of the fixed seat. The fixed seat has a large sector-shaped drive gear and a small sector-shaped drive gear respectively on the outer side of the small sector-shaped transmission gear and the large sector-shaped transmission gear, which mesh with the small sector-shaped transmission gear. The large sector-shaped drive gear and the small sector-shaped drive gear have a connecting part on the side away from the ratchet seat.

[0008] The wrench handle handpiece is provided with a limiting structure that restricts the movement of the wrench handle relative to the maintenance personnel's hand toward the wrench handle head end, and the wrench handle head end is provided with a connecting mating part that can be detachably connected to the connecting part.

[0009] Preferably, the outer side of the ratchet seat is also provided with a central sector-shaped transmission gear, and the outer side of the fixed seat corresponding to the central sector-shaped transmission gear is provided with a central sector-shaped drive gear that meshes with it, and the side of the central sector-shaped drive gear away from the ratchet seat is also provided with a connecting part.

[0010] Preferably, the connecting part includes a plug rod, the outer end of which is provided with a through hole, and the end of the through hole cavity is provided with a limiting rod whose outer end can extend out or retract into the through hole;

[0011] The connecting and mating part includes a main insertion hole for the insertion rod to be inserted, and a side insertion hole for the limiting rod to be inserted opposite the main insertion hole. The side insertion hole is provided with a squeezing rod that can squeeze the limiting rod so that the limiting rod is retracted into the through hole.

[0012] Preferably, the through hole cavity is provided with a first compression spring that pushes the limiting rod outward, and the end of the through hole is provided with a first limiting member that restricts the limiting rod from disengaging.

[0013] Preferably, the outer end of the extrusion rod extends out of the side insertion hole, and a second compression spring is provided between the outer end of the extrusion rod and the outer end of the side insertion hole, and a second limiting member is also provided at the outer end of the side insertion hole to restrict the extrusion rod from disengaging.

[0014] Preferably, the ratchet is movably fitted to the ratchet seat along its axial direction, and a third compression spring is fitted between one end of the ratchet and the side of the ratchet seat on the same side, and the ratchet end is provided with a spring limiting member.

[0015] Preferably, the mounting base is provided with at least three adsorption components spaced circumferentially thereon, which can adsorb the object onto the vehicle.

[0016] Preferably, the adsorption assembly includes a slide rod that slides through the fixed seat along the ratchet axis, one end of the slide rod is provided with a fourth limiting member, and the slide rod body is fitted with a fourth compression spring at a position matching the fourth limiting member and the fixed seat; the other end of the slide rod is universally hinged to an adsorption element.

[0017] Preferably, the limiting structure includes a side plate located on one side of the handle body of the wrench handle, and the side plate is arranged radially along the wrench handle, and the side plate is provided with a through hole for the maintenance personnel's fingers to pass through.

[0018] Preferably, the limiting structure further includes a contoured rotating sleeve that is contoured and rotatedly fitted onto the handle body of the wrench handle, and one side of the contoured rotating sleeve is provided with a side plate along its radial direction.

[0019] The contouring rotating sleeve is equipped with an anti-slip sleeve.

[0020] The beneficial effects are:

[0021] 1. Due to the design of the small sector drive gear, large sector drive gear, large sector drive gear, and small sector drive gear, maintenance personnel can turn the wrench handle with less effort. The small sector drive gear drives the large sector drive gear, which in turn drives the ratchet seat, causing the ratchet to rotate. This, in turn, rotates the tightly secured nut or bolt to be removed. This solves the technical problem in existing technologies where rusted nuts or bolts require significant force from the maintenance personnel, leading to slippage and the wrench easily slipping out of their hands. Even when the connecting part at the end of the wrench handle is engaged with the connecting part on one side of the small sector drive gear, and significant force is still required, the limiting structure effectively prevents the wrench from slipping out of the maintenance personnel's hands.

[0022] 2. Due to the ratchet length being greater than the ratchet seat length, when the head of the nut or bolt to be removed is located in a countersunk hole or a narrow space, the third compression spring can press the spring limiter, thereby causing one end of the ratchet to automatically extend into the countersunk hole or narrow space and engage with the head of the nut or bolt to be removed. This ensures the practicality of this repair tool and solves the technical problem in the prior art where the wrench and nut or bolt do not engage properly, resulting in the wrench head separating from the nut or bolt.

[0023] 3. Due to the design of the adsorption component, before disassembling the nut or bolt to be removed, the adsorption component is first used to adsorb the nut or bolt to the bottom of the car, and then the nut or bolt to be removed is removed. With this design, even if the wrench does not engage properly with the nut or bolt, the wrench head will not separate from the bottom of the car. Therefore, the wrench will not lose its support point. This solves the technical problem in the prior art where the wrench does not engage properly with the nut or bolt, causing the wrench head to separate from the nut or bolt and the wrench to lose its support point.

[0024] 4. Due to the elliptical cross-section of the contour-following rotating sleeve, it provides a more comfortable grip for maintenance personnel. Because of this design, when the maintenance personnel turn the wrench, their hand rotates, causing the contour-following rotating sleeve to rotate as well. This prevents relative rotation between the maintenance personnel's hand and the contour-following rotating sleeve, thus solving the technical problem in existing technologies where relative rotation between the maintenance personnel's hand and the wrench affects the control of the wrench and causes it to slip out of the maintenance personnel's hand.

[0025] The additional technical features and advantages of the present invention will become more apparent from the following description, or may be learned through practice of the invention. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the wrench handle in this invention;

[0028] Figure 2 This is a right view of the wrench handle in this invention;

[0029] Figure 3 This is a schematic diagram of the wrench head structure in this invention;

[0030] Figure 4 This is a structural schematic diagram of the wrench head from another perspective in this invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the fixing base in this invention;

[0032] Figure 6 This is a partial structural diagram of the connecting part and the connecting mating part after assembly in this invention.

[0033] The annotations in the attached figures are explained as follows:

[0034] 1. Wrench handle; 11. Limiting structure; 111. Side plate; 112. Contouring rotating sleeve; 113. Anti-slip sleeve; 2. Wrench head; 21. Ratchet seat; 211. Small sector drive gear; 212. Large sector drive gear; 213. Medium sector drive gear; 22. Ratchet; 221. Spring limiting component; 231. Large sector drive gear; 232. Medium sector drive gear; 233. Small sector drive gear; 24. Third compression spring; 3. Connecting part; 31. Insert rod; 32. Limiting rod; 33. First compression spring; 34. First limiting component; 4. Connecting mating part; 41. Main insertion hole; 42. Side insertion hole; 43. Extrusion rod; 44. Second compression spring; 45. Second limiting component; 5. Adsorption assembly; 51. Slide rod; 52. Fourth limiting component; 53. Fourth compression spring; 54. Adsorption component. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0037] In the description of this invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not 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 invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In this invention, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Example 1, as Figure 1-6 As shown, a maintenance tool with anti-slip function includes a wrench handle 1 and a wrench head 2. The wrench head 2 includes a ratchet seat 21, and a ratchet 22 is provided in the middle of the ratchet seat 21. The wrench head 2 also includes a fixing seat. As needed, the fixing seat includes two triangular plates or hexagonal plates arranged relatively apart. Taking the triangular plate as an example, the triangular plate has a mounting hole in the middle that is rotatably connected to the ratchet seat 21. The ratchet seat 21 is located between the two triangular plates.

[0043] As needed, a hand-held part is provided in the middle of the outer plate of one of the triangles. Specifically, the hand-held part can be a hand-held ring located on the outer side of the corresponding triangle's outer plate. The hand-held ring is connected to the corresponding triangle's outer plate through several connecting structures.

[0044] More specifically, the hand ring is coaxial with the ratchet 22.

[0045] like Figure 5 As shown, the ratchet seat 21 is provided with a small sector-shaped transmission gear 211 and a large sector-shaped transmission gear 212 along its circumference, and the ratchet seat 21 is rotatably connected to the middle of the fixed seat. The fixed seat is provided with a large sector-shaped drive gear 231 and a small sector-shaped drive gear 233 respectively on the outer side of the small sector-shaped transmission gear 211 and the large sector-shaped transmission gear 212, which mesh with it. The large sector-shaped drive gear 231 and the small sector-shaped drive gear 233 are provided with a connecting part 3 on the side away from the ratchet seat 21.

[0046] Specifically, the small sector gear 211 meshes with the large sector drive gear 231, and the large sector gear 212 meshes with the small sector drive gear 233; more specifically, the large sector drive gear 231 and the small sector gear 211 are in a speed-increasing transmission engagement, that is, the transmission ratio between the large sector drive gear 231 and the small sector gear 211 is greater than 1, preferably 2 to 4; the small sector drive gear 233 and the large sector drive gear 212 are in a speed-reducing transmission engagement, that is, the small sector drive gear 233 meshes with the large sector drive gear 212. The transmission ratio between the transmission gears 212 is less than 1, preferably 1 / 4 to 1 / 2; that is, when the maintenance personnel use the reduction transmission between the small sector drive gear 233 and the large sector transmission gear 212 to drive the ratchet seat 21 to rotate, and then drive the ratchet 22 to rotate, the maintenance personnel need less effort. That is, the maintenance personnel can drive the ratchet 22 to rotate with a small force. The principle can be referred to as the principle of the chain assembly when the bicycle is going uphill. In other words, when the transmission ratio is small enough, the rider can ride the bicycle up a steeper slope.

[0047] Furthermore, such as Figure 5 As shown, a central sector-shaped transmission gear 213 is also provided on the outer side of the ratchet seat 21. A central sector-shaped drive gear 232 that meshes with the central sector-shaped transmission gear 213 is provided on the outer side of the fixed seat, and a connecting part 3 is also provided on the side of the central sector-shaped drive gear 232 away from the ratchet seat 21.

[0048] As required, the middle sector drive gear 213 and the middle sector drive gear 213 are in constant speed transmission cooperation, that is, the transmission ratio between the middle sector drive gear 213 and the middle sector drive gear 213 is 1.

[0049] The handle 1 of the wrench is provided with a limiting structure 11 that can restrict the movement of the wrench handle 1 relative to the hand of the maintenance personnel toward the head end of the wrench handle 1; further, the limiting structure 11 includes a side plate 111 located on one side of the handle of the handle 1, and the side plate 111 is arranged radially along the wrench handle 1, and the side plate 111 is provided with a through hole for the maintenance personnel's fingers to pass through.

[0050] As needed, there are four through holes for four fingers to pass through, excluding the thumb.

[0051] The wrench handle 1 has a connecting mating part 4 that can be detachably connected to the connecting part 3 at its head end.

[0052] In use, first, the ratchet 22 is fitted onto the head of the nut or bolt to be removed. Then, the connecting part 4 at the end of the wrench handle 1 engages with the connecting part 3 on one side of the small sector drive gear 233. The technician then passes their fingers through the corresponding through hole and holds the hand part of the wrench handle 1. At this point, the technician can rotate the wrench handle 1 with relatively little effort, causing the small sector drive gear 233 to rotate. The small sector drive gear 233 drives the large sector transmission gear 212 to rotate, which in turn drives the ratchet seat 21 to rotate, thereby causing the ratchet 22 to rotate. This causes the relatively tight nut or bolt to be removed to rotate. After the nut or bolt has rotated about half a turn or several turns (depending on the specific nut or bolt), the connecting part 4 at the end of the wrench handle 1 engages with the connecting part 3 on one side of the large sector drive gear 231. At this point, the nut or bolt can be rotated quickly, improving the efficiency of removing the nut or bolt. This repair tool is more effective for nuts or bolts with many turns or that are relatively tight.

[0053] This configuration, with its small sector gear 211, large sector gear 212, large sector drive gear 231, and small sector drive gear 233, allows maintenance personnel to rotate the wrench handle 1 with less effort. The small sector drive gear 233 drives the large sector gear 212, which in turn drives the ratchet seat 21, which in turn drives the ratchet 22. This causes the tightly secured nut or bolt to rotate, solving the problem in existing technologies where rusted nuts or bolts require significant force from the wrench, leading to slippage and the wrench easily slipping from the operator's hand. Even when the connecting part 4 at the end of the wrench handle 1 engages with the connecting part 3 on one side of the small sector drive gear 233, and significant force is still required, the limiting structure 11 effectively prevents the wrench from slipping out of the operator's hand.

[0054] In some embodiments, such as Figure 6 As shown, the connecting part 3 includes a plug rod 31, the outer end of the plug rod 31 is provided with a through hole, and the end of the through hole cavity is provided with a limiting rod 32 whose outer end can extend out or retract into the through hole;

[0055] Furthermore, the through hole cavity is provided with a first compression spring 33 that pushes the limiting rod 32 outward, and the end of the through hole is provided with a first limiting member 34 that restricts the limiting rod 32 from disengaging.

[0056] The connecting and mating part 4 includes a main insertion hole 41 for the insertion rod 31 to be inserted into, and a side insertion hole 42 for the limiting rod 32 to be inserted into the opposite hole wall of the main insertion hole 41. The side insertion hole 42 is provided with a pressing rod 43 that can squeeze the limiting rod 32 so that the limiting rod 32 is retracted into the through hole.

[0057] Furthermore, the outer end of the extrusion rod 43 extends out of the side insertion hole 42, and a second compression spring 44 is provided between the outer end of the extrusion rod 43 and the outer end of the side insertion hole 42, and a second limiting member 45 is also provided at the outer end of the side insertion hole 42 to restrict the extrusion rod 43 from disengaging.

[0058] As needed, the edge of the opening of the main insertion hole 41 corresponding to the side insertion hole 42 is chamfered.

[0059] This configuration allows the main insertion hole 41 on the wrench handle 1 to be fitted onto the body of the insertion rod 31. Initially, the limiting rod 32 retracts into the through hole under the action of the wall of the main insertion hole 41. When the insertion rod 31 and the main insertion hole 41 are properly engaged, the insertion rod 31 extends out of the through hole under the action of the first compression spring 33 and extends into the side insertion hole 42. At this time, the connecting mating part 4 and the connecting part 3 are connected together accordingly.

[0060] When disconnecting the connection between the connecting part 4 and the connecting part 3, the connecting part 4 can be separated from the connecting part 3 by squeezing the squeezing rod 43, which pushes the corresponding limiting rod 32. Then, the limiting rod 32 is disengaged from the side insertion hole 42. Finally, the wrench handle 1 can be pulled outward along the insertion rod 31 axis to separate the connecting part 4 from the connecting part 3.

[0061] Example 2, based on Example 1, such as Figure 4-5 As shown, the ratchet 22 is movably fitted to the ratchet seat 21 along its axial direction, and a third compression spring 24 is fitted between one end of the ratchet 22 and the side of the ratchet seat 21 on the same side, and a spring limiting member 221 is provided at this end of the ratchet 22.

[0062] Specifically, both ends of the ratchet 22 extend out of the ratchet seat 21, and the end of the ratchet 22 away from the spring limiting member 221 is provided with a limiting structure;

[0063] As needed, the limiting structure and spring limiting component 221 may include a retaining ring.

[0064] In other words, the length of the tooth groove of the ratchet 22 is greater than the length of the tooth of the ratchet seat 21, so that the ratchet 22 can move axially while maintaining the fit between the ratchet 22 and the ratchet seat 21.

[0065] In this embodiment, as Figure 3-4 As shown, the third compression spring 24 is located on the side of the fixed seat away from the hand ring.

[0066] This design allows the third compression spring 24 to compress the spring limiter 221 when the head of the nut or bolt to be removed is in a countersunk hole or a narrow space. This causes one end of the ratchet 22 to automatically extend into the countersunk hole or narrow space and engage with the head of the nut or bolt to be removed. This ensures the practicality of the repair tool and solves the technical problem in the prior art where the wrench and nut or bolt do not engage properly, resulting in the wrench head separating from the nut or bolt.

[0067] Example 3, based on Example 1, such as Figure 3-4 As shown, the mounting base is provided with at least three adsorption components 5 at intervals along its circumference, which can adsorb it onto the car.

[0068] As needed, the adsorption component 5 is provided in three sets. The three sets of adsorption components 5 and three sector-shaped drive gears are evenly and alternately arranged. That is to say, the fixed seat is evenly arranged with six points around the ratchet 22 as the center. The three points spaced apart correspond to the three adsorption components 5 respectively, and the other three points spaced apart correspond to the rotation center of the three sector-shaped drive gears respectively.

[0069] In some embodiments, the mounting base may be a hexagonal star structure.

[0070] Furthermore, the adsorption assembly 5 includes a slide rod 51 that slides through the fixed seat along the axial direction of the ratchet 22. One end of the slide rod 51 is provided with a fourth limiting member 52, and the slide rod 51 is fitted with a fourth compression spring 53 at the position between the fourth limiting member 52 and the fixed seat. If necessary, the fourth limiting member 52 can be a hollow screw plug. The other end of the slide rod 51 is universally hinged to an adsorption member 54.

[0071] As needed, the adsorption element 54 is an electromagnet with strong magnetism;

[0072] This design allows the wrench head to adhere to the bottom of the car before disassembling the nut or bolt. This ensures that even if the wrench does not engage properly with the nut or bolt, the wrench head will not separate from the bottom of the car. Therefore, the wrench will not lose its support point, solving the technical problem in the prior art where the wrench does not engage properly with the nut or bolt, causing the wrench head to separate from the nut or bolt and the wrench to lose its support point.

[0073] Example 4, based on Example 1, such as Figure 1-2 As shown, the wrench handle 1 also includes a contoured rotating sleeve 112 that is rotatably fitted onto the handle body of the wrench handle 1, and a side plate 111 along its radial direction is provided on one side of the contoured rotating sleeve 112; the contoured rotating sleeve 112 is provided with an anti-slip sleeve 113.

[0074] As needed, the shape-following rotating sleeve 112 is modeled according to the person's gripping state; when the person holds the shape-following rotating sleeve 112, the side plate 111 is located at the position between the second and third joints of the finger cover.

[0075] As needed, the anti-slip sleeve 113 is a rubber sleeve.

[0076] Furthermore, the handle body of the wrench 1 is provided with retaining rings at both ends of the contouring rotating sleeve 112, which can prevent the contouring rotating sleeve 112 from moving along the axial direction of the wrench handle 1.

[0077] This design, with its elliptical cross-section, makes the wrench-shaped rotating sleeve 112 more comfortable for maintenance personnel to hold. Because of the rotating sleeve 112, when the maintenance personnel turn the wrench, their hand rotates, causing the rotating sleeve 112 to rotate as well. At this time, there is no relative rotation between the maintenance personnel's hand and the rotating sleeve 112, thus solving the technical problem in the prior art where relative rotation between the maintenance personnel's hand and the wrench affects the control of the wrench and causes it to slip out of the maintenance personnel's hand.

[0078] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance tool with anti-slip function, comprising a wrench handle (1) and a wrench head (2), wherein the wrench head (2) includes a ratchet seat (21), and a ratchet (22) is provided in the middle of the ratchet seat (21), characterized in that: The wrench head (2) also includes a fixed seat. The ratchet seat (21) is provided with a small sector-shaped transmission gear (211) and a large sector-shaped transmission gear (212) along its circumference. The ratchet seat (21) is rotatably connected to the middle of the fixed seat. The fixed seat is provided with a large sector-shaped drive gear (231) and a small sector-shaped drive gear (233) respectively on the outer side of the small sector-shaped transmission gear (211) and the large sector-shaped transmission gear (212) to mesh with them. The large sector-shaped drive gear (231) and the small sector-shaped drive gear (233) are provided with a connecting part (3) on the side away from the ratchet seat (21). The mounting base is provided with at least three adsorption components (5) spaced apart along its circumference, which can adsorb the object onto the vehicle; the adsorption component (5) includes a slide rod (51) that slides through the mounting base along the axial direction of the ratchet (22), one end of the slide rod (51) is provided with a fourth limiting member (52), and the slide rod (51) is fitted with a fourth compression spring (53) at the position between the fourth limiting member (52) and the mounting base; the other end of the slide rod (51) is universally hinged to an adsorption component (54); The wrench handle (1) hand-held part is provided with a limiting structure (11) that can restrict the wrench handle (1) from moving relative to the maintenance personnel's hand toward the head end of the wrench handle (1), and the head end of the wrench handle (1) is provided with a connecting mating part (4) that is detachably connected to the connecting part (3).

2. A repair tool with anti-slip function according to claim 1, characterized in that: The ratchet seat (21) is also provided with a central sector transmission gear (213) on the outside. The fixed seat is provided with a central sector drive gear (232) meshing with the central sector transmission gear (213) on the outside. The central sector drive gear (232) is also provided with a connecting part (3) on the side away from the ratchet seat (21).

3. A repair tool with anti-slip function according to claim 1 or 2, characterized in that: The connecting part (3) includes a plug rod (31), the outer end of the plug rod (31) is provided with a through hole, and the end of the through hole cavity is provided with a limiting rod (32) whose outer end can extend or retract into the through hole. The connecting part (4) includes a main insertion hole (41) for the insertion rod (31) to be inserted. The main insertion hole (41) has a side insertion hole (42) for the insertion of the limiting rod (32) on the opposite side of the hole wall. The side insertion hole (42) is provided with a pressing rod (43) that can squeeze the limiting rod (32) so that the limiting rod (32) is retracted into the through hole.

4. A repair tool with anti-slip function according to claim 3, characterized in that: The through hole cavity is provided with a first compression spring (33) that pushes outward limiting rod (32), and the end of the through hole is provided with a first limiting member (34) that restricts the limiting rod (32) from disengaging.

5. A repair tool with anti-slip function according to claim 3, characterized in that: The outer end of the extrusion rod (43) extends out of the side insertion hole (42), and a second compression spring (44) is provided between the outer end of the extrusion rod (43) and the outer end of the side insertion hole (42), and a second limiting member (45) is also provided at the outer end of the side insertion hole (42) to restrict the extrusion rod (43) from disengaging.

6. A repair tool with anti-slip function according to claim 1, characterized in that: The ratchet (22) is movably fitted to the ratchet seat (21) along its axial direction, and a third compression spring (24) is fitted between one end of the ratchet (22) and the side of the ratchet seat (21) on the same side, and a spring limiting member (221) is provided at this end of the ratchet (22).

7. A repair tool with anti-slip function according to claim 1, characterized in that: The wrench handle (1) includes a side plate (111) located on one side of the handle body of the wrench handle (1), and the side plate (111) is arranged radially along the wrench handle (1). The side plate (111) is provided with a through hole for the maintenance personnel's fingers to pass through.

8. A repair tool with anti-slip function according to claim 7, characterized in that: The limiting structure (11) further includes a contoured rotating sleeve (112) that is contoured and rotated on the handle body of the wrench handle (1), and a side plate (111) is provided on one side of the contoured rotating sleeve (112) along its radial direction. The contouring rotating sleeve (112) is provided with an anti-slip sleeve (113).

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