CN219337545U

CN219337545U - Vehicle-mounted maintenance tool

Info

Publication number: CN219337545U
Application number: CN202320068697.0U
Authority: CN
Inventors: 李天元; 于洪亮; 徐春宝
Original assignee: Jilin Industrial Technician Institute
Current assignee: Jilin Industrial Technician Institute
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-07-14
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses a vehicle-mounted maintenance tool, which comprises a maintenance tool body, wherein the maintenance tool body comprises a tool shell, a fixed rotating component, an adjustable rotating component, a connecting rod, a rotating hinge, a holding component, a replacing component and a replacing component, wherein the fixed rotating component and the adjustable rotating component are arranged in the tool shell; the utility model is provided with the fixed rotating component and the adjustable rotating component, can screw the parts to be screwed with different specifications, when the holding component is adjusted to be 90 degrees with the connecting rod, the parts to be screwed can be continuously and continuously screwed by holding the holding cylinder to screw the parts to be screwed on the premise of not separating from the parts to be screwed, and the staff does not need to frequently change the screwing angle.

Description

Vehicle-mounted maintenance tool

Technical Field

The application relates to the technical field of maintenance equipment, in particular to a vehicle-mounted maintenance tool.

Background

A wrench, a common installation and removal tool. The hand tool is used for clamping bolts, screws, nuts or other threaded connecting pieces by utilizing the lever principle, and is fastened by screwing an opening or a trepanning of the holding bolts or nuts. In the process of assembling and maintaining equipment, no matter in industrial production or daily life, the wrenches are few, and the wrenches have great small significance and have no function.

The utility model of China of patent application No. 202120285366.3 discloses a multifunctional wrench, which comprises a wrench body, wherein a plurality of nut openings with different specifications are formed in the wrench body, the wrench body is in an L-shaped structure and comprises a hammering part and a holding part, the holding part is in a strip shape, one end of the holding part is fixedly connected with the side edge of the hammering part, and an arc-shaped notch for opening a bottle cap is recessed in one side of the holding part. This application is through including hammering portion and the setting of portion of gripping with the spanner body for the spanner still can be used as the hammer, is provided with the arc breach simultaneously on the portion of gripping, makes the spanner still can be used as the bottle-opener, has the effect that improves spanner practicality

The wrench cannot continuously and continuously screw the part to be screwed on the premise of not separating from the part to be screwed, so that a worker needs to frequently change the screwing angle, the mechanical structure of the wrench is poor, time and labor are wasted when the part to be screwed is screwed, and the efficiency is low.

Disclosure of Invention

The utility model aims at: the vehicle-mounted maintenance tool solves the problems that the existing equipment cannot continuously and continuously screw the part to be screwed on the premise of not separating from the part to be screwed, so that a worker needs to frequently replace the screwing angle and the mechanical structure of part of the spanner is poor, time and labor are wasted when screwing the part of the part to be screwed on, and the efficiency is low.

The technical scheme of the utility model is as follows: the utility model provides a vehicle-mounted maintenance tool, includes the maintenance apparatus body, the maintenance apparatus body includes apparatus shell, fixed rotating subassembly, adjustable rotating subassembly, connecting rod, rotation hinge, grips the subassembly, change subassembly and replacement piece, be provided with fixed rotating subassembly and adjustable rotating subassembly in the apparatus shell, the connecting rod sets up in one side of apparatus shell, it is connected with the connecting rod through rotating the hinge to grip the subassembly, change the subassembly setting and grip the end of subassembly, the replacement piece sets up on changing the subassembly.

As a preferred implementation mode of the vehicle-mounted maintenance tool provided by the utility model, the whole instrument shell is a flat eight-prism, an octagonal empty slot is formed in the instrument shell, and a plurality of fixing protrusions are arranged on the inner wall, close to one end face of the instrument shell.

As a preferred implementation mode of the vehicle-mounted maintenance tool provided by the utility model, the number of the fixing protrusions on each side of the inner wall of the octagonal empty slot is the same, and the distances between the adjacent fixing protrusions are the same.

The large-scale part of waiting on the vehicle of can twisting of the one side that has fixed protruding on the apparatus shell is provided with fixed protruding and interval distance is the same on the octagon empty slot inner wall, six angles of hexagonal bolt can with fixed bellied interval joint, can not appear because of the infirm slip that leads to of joint when operating the apparatus body to twist this moment.

As a preferred implementation mode of the vehicle-mounted maintenance tool provided by the utility model, the adjustable rotating component comprises an adjusting rotating wheel, a first thread, a second thread, a first movable rod, a second movable rod, sawtooth patterns, a driven block, an extension block and a fixed sliding rod, one side of an instrument shell is provided with an empty slot, the adjusting rotating wheel is rotatably arranged in the empty slot, the outer wall of the adjusting rotating wheel is provided with the first thread and the second thread, the instrument shell is provided with two through holes with symmetrical positions, one through hole is internally provided with the first movable rod, the other through hole is internally provided with the second movable rod, one sides of the first movable rod and the second movable rod are respectively provided with the sawtooth patterns, the other sides of the first movable rod and the second movable rod are respectively provided with the driven block, the inner wall of the instrument shell is provided with the fixed sliding rod, one end of each driven block is in sliding fit with the fixed sliding rod, and the bottom end face of each driven block is provided with the extension block.

As a preferred implementation mode of the vehicle-mounted maintenance tool provided by the utility model, the transverse setting lengths of the first thread and the second thread are the same, the screw setting directions of the first thread and the second thread are opposite, the sawtooth pattern on the first movable rod is matched with the first thread, and the sawtooth pattern on the second movable rod is matched with the second thread.

As an optimal implementation mode of the vehicle-mounted maintenance tool provided by the utility model, the two driven blocks are symmetrically arranged, and the inner wall is in a hexagonal pattern when the two driven blocks are contacted.

For the parts to be twisted with different specifications, the equipment can enable the driven block to be matched with the specifications of the parts to be twisted by adjusting the rotating wheel; the adjusting rotating wheel is rotated clockwise, a first thread and a second thread arranged on the outer wall of the adjusting rotating wheel are matched with the sawtooth patterns, the first movable rod and the second movable rod are controlled to move in opposite directions, and meanwhile, two driven blocks fixedly connected with the first movable rod and the second movable rod also move in opposite directions, and the two driven blocks are gradually matched with the specifications of the parts to be twisted.

The bottom end surfaces of the two driven blocks are provided with extension blocks, the extension blocks can deeply screw the to-be-screwed component sunken on the surface of the maintenance object, and the contact condition of the driven blocks and the to-be-screwed component can be clearly and intuitively seen through the octagonal empty grooves, so that the device is quite convenient to use.

As a preferred implementation mode of the vehicle-mounted maintenance tool provided by the utility model, the allowable rotation angle of the rotating hinge is 180 degrees, the wing-shaped bolt is screwed on the rotating hinge, one end of the rotating hinge is connected with the connecting rod, and the other end of the rotating hinge is connected with the holding assembly.

As a preferred implementation mode of the vehicle-mounted maintenance tool provided by the utility model, the holding assembly comprises a fixed rod, the travelling beads and a holding cylinder, one end of the fixed rod is connected with the rotating hinge, the other end of the fixed rod is connected with the replacement assembly, the outer wall of the fixed rod is provided with the holding cylinder, the outer wall of the fixed rod and the inner wall of the holding cylinder are both provided with a plurality of annular empty slots, a plurality of travelling beads are arranged in the annular empty slots, and the holding cylinder is in rotating fit with the fixed rod through the annular empty slots and the travelling beads.

As a preferred embodiment of the vehicle-mounted maintenance tool provided by the utility model, the holding assembly further comprises a non-slip pad arranged on the outer wall of the holding cylinder.

The clamping connection between the fixed rotating component or the adjustable rotating component and the component to be screwed can enable the holding component and the connecting rod to be 90 degrees through the rotating hinge and fix by screwing the wing-shaped bolt, and at the moment, a maintainer can hold the holding cylinder control equipment to screw the component to be screwed. Wherein, a plurality of annular empty slot has been seted up at the outer wall of dead lever and the inner wall of holding a section of thick bamboo, is provided with the pearl in the annular empty slot, when maintenance personal hold a section of thick bamboo twist the part, can be in break away from wait to twist the continuous incessant quick twisting under the prerequisite of twisting the part and twist the part, the staff need not frequent change and twist the angle, and the mechanics structure of this equipment is better, laborsaving when twisting the part, efficient.

The anti-slip pad is used for increasing the friction force between the hand and the holding cylinder, so that the slipping phenomenon during the use of the instrument is avoided. The holding assembly is adjusted to be 180 degrees with the connecting rod and locked by the wing bolt, and the instrument is placed in the tool box at the moment, so that the instrument does not occupy too much space.

As a preferred implementation mode of the vehicle-mounted maintenance tool provided by the utility model, the replacement component comprises a fixed head, a first magnet, a bolt, a second magnet and a pull ring, wherein the fixed head is fixedly connected with the tail end of a fixed rod, a hollow groove is formed in the fixed head, the first magnet is arranged in the hollow groove, a round hollow groove perpendicular to the first magnet is further formed in the fixed head, the bolt is inserted in the round hollow groove, one end of the bolt is provided with the second magnet, the second magnet is in adsorption fit with the first magnet, the other end of the bolt is provided with the pull ring, and the replacement part is arranged in the fixed head and is locked by the bolt.

The screw on the maintenance object can be screwed through the replacement part arranged on the fixing head (the holding assembly is required to be adjusted to be 180 degrees with the connecting rod), and the replacement part supports to replace the screw for coping with different specifications. In the installation aspect of the replacement head, one end of the replacement head is required to be inserted into the empty groove on the fixed head, and then one end of the bolt is propped against the first magnet by pushing the bolt, and at the moment, the second magnet at one end of the bolt is adsorbed with the first magnet, so that the fixing and limiting of the replacement part are realized.

The replacement part is convenient to detach and replace when the replacement part cannot fall off in a magnetic limiting mode.

Compared with the prior art, the utility model has the beneficial effects that:

the device is provided with the fixed rotating component and the adjustable rotating component, can screw the parts to be screwed of different specifications, when the holding component is adjusted to be 90 degrees with the connecting rod, the parts to be screwed can be continuously and continuously screwed by holding the holding cylinder and screwing the parts, a worker does not need to frequently change the screwing angle, the mechanical structure of the device is better, the device saves labor when screwing the parts, the efficiency is high, screws on maintenance objects can be screwed through the replacement parts arranged on the fixed head, and the replacement parts support to replace the screws for coping with different specifications.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, in which the drawings are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a first perspective view structure according to the present utility model;

FIG. 2 is a schematic diagram of a second perspective view structure according to the present utility model;

FIG. 3 is a schematic view of an adjustable rotating assembly according to the present utility model;

FIG. 4 is a schematic side sectional view of the present utility model;

FIG. 5 is a schematic view of the structure of the holding assembly and the position of A in the drawing;

FIG. 6 is an enlarged schematic view of the structure of FIG. 5 at the position A;

wherein: 1. maintaining the instrument body; 11. an instrument housing; 12. fixing the rotating component; 13. an adjustable rotating assembly; 14. a connecting rod; 15. a rotating hinge; 16. wing bolts; 17. a grip assembly; 18. replacing the assembly; 19. a replacement; 121. a fixing protrusion; 131. adjusting the rotating wheel; 132. a first thread; 133. a second thread; 134. a first movable lever; 135. a second movable rod; 136. sawtooth patterns; 137. a driven block; 138. an extension block; 139. fixing the slide bar; 171. a fixed rod; 172. moving the beads; 173. a grip barrel; 174. an anti-slip pad; 181. a fixed head; 182. a first magnet; 183. a plug pin; 184. a second magnet; 185. and (5) a pull ring.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

As described in the background art, the existing equipment has the problems that the parts to be screwed cannot be continuously and continuously screwed on the premise of not separating from the parts to be screwed, so that the screwing angle of workers needs to be frequently changed, the mechanical structure of part of the spanner is poor, time and labor are wasted when part of the parts to be screwed are screwed, and the efficiency is low.

In order to solve the technical problems, the inventor proposes a vehicle-mounted maintenance tool.

Specifically, as shown in fig. 1-6, the maintenance apparatus comprises a maintenance apparatus body 1, wherein the maintenance apparatus body 1 comprises an apparatus housing 11, a fixed rotating assembly 12, an adjustable rotating assembly 13, a connecting rod 14, a rotating hinge 15, a holding assembly 17, a replacing assembly 18 and a replacing piece 19, the fixed rotating assembly 12 and the adjustable rotating assembly 13 are arranged in the apparatus housing 11, the connecting rod 14 is arranged on one side of the apparatus housing 11, the holding assembly 17 is connected with the connecting rod 14 through the rotating hinge 15, the replacing assembly 18 is arranged at the tail end of the holding assembly 17, and the replacing piece 19 is arranged on the replacing assembly 18.

The utility model is provided with the fixed rotating component 12 and the adjustable rotating component 13, can screw the parts to be screwed with different specifications, when the holding component 17 is adjusted to be 90 degrees with the connecting rod 14, the parts to be screwed can be continuously and uninterruptedly screwed by holding the holding cylinder 173 on the premise of not separating from the parts to be screwed, and the staff does not need to frequently change the screwing angle.

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model.

Thus, the following detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model, as claimed, but is merely representative of some embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

As shown in fig. 1 and 2, a vehicle-mounted maintenance tool comprises a maintenance tool body 1, wherein the maintenance tool body 1 comprises a tool shell 11, a fixed rotating component 12, an adjustable rotating component 13, a connecting rod 14, a rotating hinge 15, a holding component 17, a replacing component 18 and a replacing component 19, the fixed rotating component 12 and the adjustable rotating component 13 are arranged in the tool shell 11, the connecting rod 14 is arranged on one side of the tool shell 11, the holding component 17 is connected with the connecting rod 14 through the rotating hinge 15, the replacing component 18 is arranged at the tail end of the holding component 17, and the replacing component 19 is arranged on the replacing component 18.

The whole instrument shell 11 is a flat eight-prism, an octagonal empty slot is formed in the instrument shell 11, and a plurality of fixing protrusions 121 are arranged on the inner wall, close to one end face of the instrument shell 11. The number of the fixing protrusions 121 on each side of the inner wall of the octagonal empty slot is the same, and the distances between adjacent fixing protrusions 121 are the same.

The large-scale part of waiting on the vehicle of can twisting of the one side that has fixed bulge 121 on the apparatus shell 11 is provided with fixed bulge 121 and interval distance is the same on the octagon hollow inner wall, and hexagonal bolt's six angles can with fixed bulge 121's interval joint, can not appear because of the infirm slip that leads to of joint when operating the apparatus body and twist this moment.

As shown in fig. 1, 3 and 4, the adjustable rotating assembly 13 includes an adjusting rotating wheel 131, a first thread 132, a second thread 133, a first movable rod 134, a second movable rod 135, a sawtooth pattern 136, a driven block 137, an extension block 138 and a fixed slide bar 139, one side of the instrument housing 11 is provided with a hollow groove, the adjusting rotating wheel 131 is rotatably arranged in the hollow groove, the outer wall of the adjusting rotating wheel 131 is provided with the first thread 132 and the second thread 133, the instrument housing 11 is provided with two through holes with symmetrical positions, a first movable rod 134 is arranged in one through hole, a second movable rod 135 is arranged in the other through hole, sawtooth patterns 136 are arranged on one sides of the first movable rod 134 and the second movable rod 135, driven blocks 137 are arranged on the other sides of the first movable rod 134 and the second movable rod 135, the inner wall of the instrument housing 11 is provided with the fixed slide bar 139, one ends of the two driven blocks 137 are in sliding fit with the fixed slide bar 139, and the bottom end face of the driven block 137 is provided with the extension block 138.

The first thread 132 and the second thread 133 have the same transverse arrangement length, the spiral arrangement directions of the first thread 132 and the second thread 133 are opposite, the serration 136 on the first movable rod 134 is matched with the first thread 132, and the serration 136 on the second movable rod 135 is matched with the second thread 133. The two driven blocks 137 are symmetrically arranged, and the inner wall is hexagonal when the two are contacted.

For the parts to be screwed with different specifications, the equipment can enable the driven block 137 to be matched with the specifications of the parts to be screwed by adjusting the rotating wheel 131; the adjusting wheel is rotated clockwise, the first thread 132 and the second thread 133 arranged on the outer wall of the adjusting wheel are matched with the sawtooth patterns 136, the first movable rod 134 and the second movable rod 135 are controlled to move in opposite directions, and simultaneously, the two driven blocks 137 fixedly connected with the first movable rod 134 and the second movable rod 135 are also moved in opposite directions, and the two driven blocks 137 are gradually matched with the specifications of the parts to be screwed.

Wherein, the bottom end surfaces of the two driven blocks 137 are provided with extension blocks 138, the extension blocks 138 can deeply screw the part to be screwed which is sunken on the surface of the maintenance object, and the contact condition of the driven blocks 137 and the part to be screwed can be clearly and intuitively seen through the octagonal empty slots, so that the device is quite convenient to use

As shown in fig. 1, 2 and 5, wing bolts 16 are screwed on the rotary hinges 15, one ends of the rotary hinges 15 are connected with the connecting rods 14, and the other ends are connected with the holding assemblies 17. The holding assembly 17 comprises a fixed rod 171, a plurality of beads 172 and a holding cylinder 173, one end of the fixed rod 171 is connected with the rotary hinge 15, the other end of the fixed rod 171 is connected with the replacement assembly 18, the outer wall of the fixed rod 171 is provided with the holding cylinder 173, the outer wall of the fixed rod 171 and the inner wall of the holding cylinder 173 are provided with a plurality of annular empty slots, a plurality of beads 172 are arranged in the annular empty slots, and the holding cylinder 173 is in rotary fit with the fixed rod 171 through the annular empty slots and the beads 172. The grip assembly 17 further includes a cleat 174 disposed on an outer wall of the grip barrel 173.

Between the fixed rotating component 12 or the adjustable rotating component 13 and the component to be screwed, the holding component 17 and the connecting rod 14 can be 90 degrees through rotating the hinge 15 and the wing bolt 16 is screwed for fixation, and at the moment, a maintainer can hold the holding cylinder 173 to control the equipment to screw the component to be screwed. Wherein, a plurality of annular empty slots are offered at the outer wall of dead lever 171 and the inner wall of holding section of thick bamboo 173, are provided with the pearl 172 in the annular empty slots, when the maintenance personal hold section of thick bamboo 173 twist the part, can be under the prerequisite of waiting to twist the part continuous incessantly twist fast and twist the part of waiting to twist, the staff need not frequent change and twist the angle, and the mechanics structure of this equipment is better, laborsaving when twisting the part, efficient.

The anti-slip pad 174 is used to increase the friction between the hand and the grip cylinder 173, avoiding slipping during use of the instrument. The gripping assembly 17 is adjusted to 180 deg. to the connecting rod 14 and locked by the wing bolts 16, at which time the instrument is placed in the tool box without taking up too much space.

As shown in fig. 1, 5 and 6, the replacing assembly 18 comprises a fixing head 181, a first magnet 182, a bolt 183, a second magnet 184 and a pull ring 185, wherein the fixing head 181 is fixedly connected with the tail end of a fixing rod 171, a hollow groove is formed in the fixing head 181, the first magnet 182 is arranged in the hollow groove, a round hollow groove perpendicular to the first magnet 182 is further formed in the fixing head 181, the bolt 183 is inserted in the round hollow groove, one end of the bolt 183 is provided with the second magnet 184, the second magnet 184 is in adsorption fit with the first magnet 182, the pull ring 185 is arranged at the other end of the bolt 183, and the replacing piece 19 is arranged in the fixing head 181 and is locked by the bolt 183.

The screw on the maintenance object can be screwed through the replacing piece 19 arranged on the fixing head 181 (the holding assembly 17 is required to be adjusted to be 180 degrees with the connecting rod 14), and the replacing piece 19 supports to replace the screw for coping with different specifications. In terms of installation of the replacement head, one end of the replacement head needs to be inserted into the empty slot on the fixed head 181, and then one end of the bolt 183 is propped against the first magnet 182 by pushing the bolt 183, and at the moment, the second magnet 184 at one end of the bolt 183 is adsorbed to the first magnet 182, so that the fixing and limiting of the replacement piece 19 are realized.

Wherein, adopt the spacing mode that magnetism was inhaled, conveniently dismantle the change when guaranteeing that replacement 19 can not drop.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a vehicle-mounted maintenance tool, includes maintenance apparatus body (1), maintenance apparatus body (1) include instrument shell (11), fixed rotating subassembly (12), adjustable rotating subassembly (13), connecting rod (14), swivel hinge (15), hold subassembly (17), change subassembly (18) and substitute (19), its characterized in that: the utility model discloses a rotary type surgical instrument, which is characterized in that a fixed rotating component (12) and an adjustable rotating component (13) are arranged in an instrument shell (11), a connecting rod (14) is arranged on one side of the instrument shell (11), a holding component (17) is connected with the connecting rod (14) through a rotating hinge (15), a replacing component (18) is arranged at the tail end of the holding component (17), and a replacing component (19) is arranged on the replacing component (18).

2. The vehicle-mounted maintenance tool according to claim 1, wherein the instrument housing (11) is integrally a flat eight-prism, an octagonal empty slot is formed in the instrument housing (11), and a plurality of fixing protrusions (121) are arranged on the inner wall, close to one end face of the instrument housing (11).

3. A vehicle-mounted maintenance tool according to claim 2, wherein the number of the fixing protrusions (121) on each side of the inner wall of the octagonal void is the same, and the distances between adjacent fixing protrusions (121) are the same.

4. The vehicle-mounted maintenance tool according to claim 1, wherein the adjustable rotating assembly (13) comprises an adjusting rotating wheel (131), a first thread (132), a second thread (133), a first movable rod (134), a second movable rod (135), a sawtooth pattern (136), a driven block (137), an extension block (138) and a fixed slide rod (139), an empty slot is formed in one side of the tool housing (11), the adjusting rotating wheel (131) is rotatably arranged in the empty slot, a first thread (132) and a second thread (133) are arranged on the outer wall of the adjusting rotating wheel (131), two through holes with symmetrical positions are formed in the tool housing (11), a first movable rod (134) is arranged in one through hole, a second movable rod (135) is arranged in the other through hole, sawtooth patterns (136) are formed in one sides of the first movable rod (134) and the second movable rod (135), driven blocks (137) are formed in the other sides of the first movable rod (134) and the second movable rod (135), the inner wall of the housing (11) is provided with the driven block (139), and the two end faces (139) are arranged at the bottom of the fixed slide block (137) and matched with the two end faces (139).

5. The vehicle-mounted maintenance tool according to claim 4, wherein the first thread (132) and the second thread (133) are identical in transverse arrangement length, the directions of screw setups of the first thread (132) and the second thread (133) are opposite, the serration (136) on the first movable rod (134) is matched with the first thread (132), and the serration (136) on the second movable rod (135) is matched with the second thread (133).

6. The vehicle maintenance tool according to claim 4, wherein the two driven blocks (137) are symmetrically arranged, and the inner wall is hexagonal in pattern when the two driven blocks are in contact.

7. The vehicle-mounted maintenance tool according to claim 1, wherein the allowable rotation angle of the rotary hinge (15) is 180 degrees, a wing bolt (16) is screwed on the rotary hinge (15), one end of the rotary hinge (15) is connected with the connecting rod (14), and the other end of the rotary hinge is connected with the holding assembly (17).

8. The vehicle-mounted maintenance tool according to claim 7, wherein the holding assembly (17) comprises a fixed rod (171), a plurality of beads (172) and a holding cylinder (173), one end of the fixed rod (171) is connected with the rotary hinge (15), the other end of the fixed rod is connected with the replacement assembly (18), the holding cylinder (173) is arranged on the outer wall of the fixed rod (171), a plurality of annular empty slots are formed in the outer wall of the fixed rod (171) and the inner wall of the holding cylinder (173), a plurality of beads (172) are arranged in the annular empty slots, and the holding cylinder (173) is in running fit with the fixed rod (171) through the annular empty slots and the beads (172).

9. The vehicle service tool according to claim 8, wherein the grip assembly (17) further comprises a non-slip pad (174) disposed on an outer wall of the grip barrel (173).

10. The vehicle-mounted maintenance tool according to claim 8, wherein the replacement assembly (18) comprises a fixed head (181), a first magnet (182), a bolt (183), a second magnet (184) and a pull ring (185), the fixed head (181) is fixedly connected with the tail end of the fixed rod (171), a hollow groove is formed in the fixed head (181), the first magnet (182) is arranged in the hollow groove, a circular hollow groove perpendicular to the first magnet (182) is formed in the fixed head (181), the bolt (183) is inserted into the circular hollow groove, one end of the bolt (183) is provided with a second magnet (184), the second magnet (184) is in adsorption fit with the first magnet (182), the other end of the bolt (183) is provided with the pull ring (185), and the replacement piece (19) is arranged in the fixed head (181) and is locked by the bolt (183).