CN112936162B - Synchronous formula replacer of automobile wheel hub screw - Google Patents
Synchronous formula replacer of automobile wheel hub screw Download PDFInfo
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- CN112936162B CN112936162B CN202110303549.8A CN202110303549A CN112936162B CN 112936162 B CN112936162 B CN 112936162B CN 202110303549 A CN202110303549 A CN 202110303549A CN 112936162 B CN112936162 B CN 112936162B
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- dismounting
- driven gear
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B29/00—Accessories
- B25B29/02—Bolt tensioners
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- Engineering & Computer Science (AREA)
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- General Details Of Gearings (AREA)
Abstract
The utility model provides a synchronous formula replacer of automobile wheel hub screw, first casing and second casing including mutual lock, first casing with inside formation installation space behind the second casing lock, the one end of the inboard fixed connection driving gear fixed column of second casing, the other end swing joint driving gear one side of driving gear fixed column, hexagonal hole in the another side of drive tooth sets up, first casing inboard is provided with a plurality of follower, every follower is connected with the driving gear meshing, wheel hub dismouting mechanism is connected in the last meshing of every follower, set up the dismouting sleeve in every wheel hub dismouting mechanism, set up first through-hole on the first casing, evenly be provided with a plurality of second through-holes on the second casing, interior hexagonal hole is just to first through-hole, every dismouting sleeve passes a second through-hole, wheel hub dismouting mechanism drives the dismouting sleeve and rotates in the second through-hole. According to the automobile hub dismounting device, the dismounting sleeve is indirectly driven through the driving gear, and meanwhile, the nut on the automobile hub is dismounted or mounted, so that the mounting and dismounting efficiency is higher.
Description
Technical Field
The invention belongs to the technical field of automobile maintenance equipment, and relates to an automobile hub screw synchronous replacer.
Background
With the increasing level of social economy, automobiles have become one of the necessary vehicles for modern households. Because automobile tires belong to easily-consumed goods, the automobile tires run to a certain kilometer number or are worn or damaged due to other reasons, and other factors threaten driving safety. Thus requiring replacement of the tire. Ordinary domestic car adopts 5 cellular type wheel hubs more, need to demolish the screw one by one, and then install according to the order. The installation method is time-consuming, labor-consuming and low in efficiency, and if the installation is not carried out according to the screw installation sequence, the situation of infirm installation and even the tragedy of car damage and people death can be caused.
Disclosure of Invention
The invention aims to provide a synchronous replacer for automobile hub screws, which aims to solve the technical problem that the conventional automobile hub screw is time-consuming and labor-consuming to disassemble.
In order to solve the technical problems, the specific technical scheme of the automobile hub screw synchronous replacer provided by the invention is as follows:
the utility model provides a synchronous formula replacer of automobile wheel hub screw, first casing and second casing including mutual lock, first casing with inside formation installation space behind the second casing lock, the one end of the inboard fixed connection driving gear fixed column of second casing, the other end swing joint driving gear one side of driving gear fixed column, hexagonal hole in the another side of driving tooth sets up, first casing inboard is provided with a plurality of follower, every follower is connected with the driving gear meshing, wheel hub dismouting mechanism is connected in the last meshing of every follower, set up the dismouting sleeve in every wheel hub dismouting mechanism, set up first through-hole on the first casing, evenly be provided with a plurality of second through-holes on the second casing, interior hexagonal hole is just to first through-hole, every dismouting sleeve passes one the second through-hole, wheel hub dismouting mechanism drives the dismouting sleeve and rotates in the second through-hole.
The invention is also characterized in that:
wherein first casing installation space bottom is provided with a plurality of fixing bolt, and second casing installation space bottom corresponds the position and is provided with a plurality of bolt holes.
Wherein the driving gear middle part is provided with the through-hole, and through-hole one side is interior hexagonal hole, and the driving gear bearing is connected to the through-hole another side, and the driving gear passes through driving gear bearing and driving gear fixed column swing joint.
Wherein a plurality of follower all include first driven gear and second driven gear, and first driven gear links together through drive chain with the second driven gear, and drive chain is connected with the driving gear meshing.
Wherein first driven gear middle part is provided with the third through-hole, is provided with first driven gear bearing in the third through-hole, and the fixed cover of first driven gear bearing is established on first driven gear fixed column, and second driven gear middle part is provided with the fourth through-hole, is provided with second driven gear bearing in the fourth through-hole, and the fixed cover of second driven gear bearing is established on second driven gear fixed column.
Wherein a plurality of wheel hub dismouting mechanisms all include wheel hub dismouting gear, and wheel hub dismouting gear is connected with the drive chain meshing, wheel hub dismouting gear one side middle part fixed connection dismouting sleeve, wheel hub dismouting gear another side central point puts and connects wheel hub dismouting gear fixed establishment.
Wherein wheel hub dismouting gear fixing mechanism includes wheel hub dismouting gear bearing, and wheel hub dismouting gear bearing cover is established on wheel hub dismouting gear fixing column, wheel hub dismouting gear fixing column sets up between first driven gear fixing column and second driven gear fixing column.
Wherein wheel hub dismouting gear fixed establishment includes wheel hub dismouting gear fixing column, and wheel hub dismouting gear is connected to wheel hub dismouting gear fixing column's one end, and another pot head of wheel hub dismouting gear fixing column is equipped with wheel hub dismouting gear bearing, and wheel hub dismouting gear bearing connects slide mechanism.
The sliding mechanism comprises a sliding block, a fifth through hole is formed in the sliding block, the hub dismounting gear bearing is arranged in the fifth through hole, the sliding block is arranged on the inner side of two sliding guide rails, the two sliding guide rails are arranged between the first driven gear and the second driven gear, and the two sliding guide rails are parallel to the transmission chain.
Wherein, two ends of the inner side of the two sliding guide rails are respectively provided with a guide rail limiting plate, the inner side surfaces of the two sliding guide rails are provided with steel ball fixing grooves, and steel balls are arranged in the steel ball fixing grooves.
The automobile hub screw synchronous replacer has the advantages that the dismounting sleeve is indirectly driven through the driving gear, and the nut on the automobile hub is dismounted or mounted at the same time, so that the mounting and dismounting efficiency is high, the mounting is firmer, and the problem of instable mounting caused by non-sequential mounting is avoided. Further, the sliding block sliding rails are arranged, so that the positions of the dismounting sleeves can be adjusted for hubs of different sizes, and the application range is wider.
Drawings
FIG. 1 is a schematic view of the front side of the automobile hub screw synchronous type assembling and disassembling device
FIG. 2 is a schematic view of the internal structure of a second housing of the screw synchronous type detacher for an automobile hub according to the present invention;
FIG. 3 is a schematic structural view showing a screw synchronous type detacher for an automobile hub according to a first embodiment of the present invention;
FIG. 4 is a schematic structural view of a second embodiment of a screw synchronous type detacher for an automobile hub according to the present invention;
FIG. 5 is a schematic structural view of a third embodiment of a screw synchronous type detacher for an automobile hub according to the present invention;
FIG. 6 is a schematic structural diagram of a fourth embodiment of a screw synchronous type detacher for an automobile hub according to the present invention;
FIG. 7 is a schematic view of a partial structure of a sliding mechanism of a screw synchronous type detacher for an automobile hub according to the present invention;
FIG. 8 is a schematic view showing the structure of the back face of the automobile hub screw synchronous type detacher according to the present invention;
the notation in the figure is: 1. a first housing; 2. a second housing; 3. fixing the bolt; 4. a driving gear; 5. a drive gear bearing; 6. a driving gear fixing column; 7. a drive chain; 8. a first driven gear; 9. a second driven gear; 10. a first driven gear bearing; 11. a second driven gear bearing; 12. a first driven gear fixing column; 13. a second driven gear fixing column; 14. an inner hexagonal hole; 15. a first through hole; 16. a sliding guide rail; 17. a guide rail limiting plate; 18. a slider; 19. a second through hole; 20. the gear is disassembled and assembled on the hub; 21. the hub is provided with a gear fixing column in a dismounting way; 22. the gear bearing is disassembled and assembled on the hub; 23. steel balls; 24. a steel ball fixing groove; 25. disassembling and assembling the sleeve; 26. a third through hole; 27. a fourth via hole; 28. a fifth through hole; 29. bolt holes.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the following describes in detail an automobile hub screw synchronous replacer according to the present invention with reference to the accompanying drawings.
As shown in fig. 1-3, a first embodiment of the screw synchronous replacer for an automobile hub according to the present invention includes a first housing 1 and a second housing 2 that are fastened to each other, the first housing 1 and the second housing 2 are fastened to each other to form an installation space therein, and the first housing 1 and the second housing 2 are both formed by a bottom of a regular five-sided row and a side wall formed by five sides extending upward. The positive pentagonal row bottom of the first shell 1 is evenly provided with 5 fixing bolts 3 along five edges, the corresponding position of the bottom inside the second shell 2 is provided with 5 bolt holes 29, and the first shell 1 is connected with the second shell 2 through the fixing bolts. The one end of the positive pentagonal row bottom fixed connection driving gear fixed column 6 in second casing 2 inboard, the other pot head of driving gear fixed column 6 is equipped with driving gear bearing 5, and driving gear bearing 5 sets up the one side at the through-hole that driving gear 4 middle part set up, and the another side of the through-hole that driving gear 4 middle part set up is interior hexagonal hole 14. The positive pentagonal row bottom central point of first casing 1 puts and is provided with first through-hole 15, interior hexagonal hole 14 is just to first through-hole 15, interior hexagonal spanner can insert in interior hexagonal hole 14 through first through- hole 15, 5 follower are connected in the meshing of driving gear 4, every follower meshing is connected with wheel hub dismouting mechanism, be provided with dismouting sleeve 25 on every wheel hub dismouting mechanism, the positive pentagonal row bottom of second casing 2 is provided with 5 second through-holes 19, every dismouting sleeve 25 passes a second through-hole 19, wheel hub dismouting mechanism drives dismouting sleeve 25 at second through-hole 19 free rotation.
Each driven mechanism comprises a first driven gear 8 and a second driven gear 9, a third through hole 26 is formed in the middle of the first driven gear 8, a first driven gear bearing 10 is arranged in the third through hole 26, the first driven gear bearing 10 is fixedly sleeved on a first driven gear fixing column 12, a fourth through hole 27 is formed in the middle of the second driven gear 9, a second driven gear bearing 11 is arranged in the fourth through hole 27, the second driven gear bearing is fixedly sleeved on a second driven gear fixing column 13, the first driven gear fixing column 12 and the second driven gear fixing column 13 are sequentially arranged on a straight line from the bottom center to the top point of the right five side rows in the first shell 1, and the first driven gear 8 is connected with the second driven gear 9 through a transmission chain 7. The bottom of the right pentagonal row in the first shell 1 is uniformly provided with 5 transmission mechanisms along the circumscribed circumferential direction, and the transmission mechanisms are arranged along the direction from the top point of the right pentagonal row at the bottom of the first shell 1 to the center. The central position surrounded by 5 transmission mechanisms can be inserted with a driving gear 5, and the driving gear 5 is meshed with 5 transmission chains 7.
Wheel hub dismouting mechanism includes wheel hub dismouting gear 20, wheel hub dismouting gear 20 is connected with the meshing of drive chain 7, wheel hub dismouting gear 20 one side middle part fixed connection dismouting sleeve 25, wheel hub dismouting gear bearing 22 is connected at another side middle part, wheel hub dismouting gear bearing 22 cover is established on wheel hub dismouting gear fixed column 21, wheel hub dismouting gear fixed column 21 sets up between first driven gear fixed column 12 and second driven gear fixed column 13.
As shown in fig. 4, in the second embodiment of the present invention, other structures are not changed, the driving gear 4 is engaged with 4 driven mechanisms, each driven mechanism is engaged with a hub disassembling and assembling mechanism, each hub disassembling and assembling mechanism is provided with a disassembling and assembling sleeve 25, the bottom of the right five rows of the second housing 2 is provided with 4 second through holes 19, each disassembling and assembling sleeve 25 passes through one second through hole 19, and the hub disassembling and assembling mechanism drives the disassembling and assembling sleeve 25 to freely rotate in the second through hole 19.
As shown in fig. 5, in the third embodiment of the present invention, other structures are not changed, the driving gear 4 is engaged with 6 driven mechanisms, each driven mechanism is engaged with a hub disassembling and assembling mechanism, each hub disassembling and assembling mechanism is provided with a disassembling and assembling sleeve 25, the bottom of the right five rows of the second housing 2 is provided with 6 second through holes 19, each disassembling and assembling sleeve 25 passes through one second through hole 19, and the hub disassembling and assembling mechanism drives the disassembling and assembling sleeve 25 to freely rotate in the second through hole 19.
As shown in fig. 6 and 7, in the fourth embodiment of the present invention, other structures are not changed, the transmission chain 7 is connected to the hub dismounting gear 20, the dismounting sleeve 25 is fixedly disposed at the middle position of one surface of the hub dismounting gear 20, the middle position of the other surface of the hub dismounting gear 20 is fixedly connected to one end of the hub dismounting gear fixing column 21, the hub dismounting gear bearing 22 is sleeved at the other end of the hub dismounting gear fixing column 21, the hub dismounting gear bearing 22 is disposed in the fifth through hole 28 formed in the slider 18, the slider 18 is disposed inside the two sliding guide rails 16, and the two sliding guide rails 16 are disposed between the first driven gear 8 and the second driven gear 9 and parallel to the transmission chain 7. Guide rail limiting plates 17 are arranged at two ends of the inner sides of the two sliding guide rails 16 respectively, and therefore the hub dismounting gear 20 is prevented from touching the first driven gear 8 and the second driven gear 9. The inner side surfaces of the two sliding guide rails 16 are provided with steel ball fixing grooves 24, steel balls 23 are arranged in the steel ball fixing grooves 24, and the steel balls 23 can freely rotate in the steel ball fixing grooves 24, so that the sliding block 18 can freely slide in the two sliding guide rails 16. The second through hole 19 is preferably oval, and the removable sleeve 25 can freely move in the second through hole 19 in the major diameter direction.
As shown in fig. 1 and 8, for a common five-hole hub, when the automobile hub dismounting tool is used, 5 dismounting sleeves on one side of the second shell 2 are arranged on 5 nuts corresponding to the automobile hub, an inner hexagonal wrench or an electric drill with an inner hexagonal wrench head is used, the inner hexagonal wrench or the electric drill is inserted into the inner hexagonal hole 15 to rotate, the driving gear 4 drives five transmission chains 7 to rotate, the transmission chains 7 drive the hub dismounting gears 20 to rotate, the hub dismounting gears 20 drive the dismounting sleeves 25 to rotate, and then the 5 nuts on the automobile hub can be dismounted simultaneously. The installation is to repeat above-mentioned step, just can install 5 nuts on the automobile wheel hub simultaneously, does not worry because do not install the insecure problem of causing according to the order. To five hole wheel hubs of not unidimensional, use earlier in the hexagonal spanner inserts interior hexagonal hole 15 rotations, driving gear 4 drives five drive chain 7 rotations, drive chain 7 drives wheel hub dismouting gear 20 and rotates, wheel hub dismouting gear 20 self rotates and can promote slider 18 free slip in sliding guide 16 simultaneously, wheel hub dismouting gear 20 drives dismouting sleeve 25 along major diameter direction free movement in oval second through-hole, size adjustment dismouting sleeve 25 to five hole wheel hubs, then dismantle or install dismouting sleeve 25 cover on 5 nuts that automobile wheel hub corresponds. Of course, according to the second and third embodiments of the present invention, the four-hole hub and the six-hole hub can be used by arranging the driven mechanisms to be four-bar and six-bar.
According to the automobile hub screw synchronous replacer, the dismounting sleeve is indirectly driven through the driving gear, and the nut on the automobile hub is dismounted or mounted at the same time, so that the mounting and dismounting efficiency is high, the mounting is firmer, and the problem of instable mounting caused by non-sequential mounting is avoided. Further, the sliding block sliding rails are arranged, so that the positions of the dismounting sleeves can be adjusted for hubs of different sizes, and the application range is wider.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The automobile hub screw synchronous replacer is characterized by comprising a first shell (1) and a second shell (2) which are mutually buckled, wherein an installation space is formed inside the first shell (1) and the second shell (2) after being buckled, one end of a driving gear fixing column (6) is fixedly connected to the inner side of the second shell (2), the other end of the driving gear fixing column (6) is movably connected with one side of a driving gear (4), the other side of the driving gear (4) is provided with an inner hexagonal hole (14), a plurality of driven mechanisms are arranged on the inner side of the first shell (1), each driven mechanism is meshed with the driving gear (4) and is connected with a hub dismounting mechanism, each hub dismounting mechanism is provided with a dismounting sleeve (25), a first through hole (15) is formed in the first shell (1), a plurality of second through holes (19) are uniformly formed in the second shell (2), the inner hexagonal hole (14) is opposite to the first through hole (15), each disassembling and assembling sleeve (25) penetrates through one second through hole (19), and the hub disassembling and assembling mechanism drives the disassembling and assembling sleeve (25) to rotate in the second through hole (19);
each driven mechanism comprises a first driven gear (8) and a second driven gear (9), the first driven gear (8) and the second driven gear (9) are connected together through a transmission chain (7), and the transmission chain (7) is in meshed connection with the driving gear (4);
the hub disassembling and assembling mechanisms comprise hub disassembling and assembling gears (20), the hub disassembling and assembling gears (20) are meshed with the transmission chain (7) and connected, the middle part of one surface of each hub disassembling and assembling gear (20) is fixedly connected with a disassembling and assembling sleeve (25), and the central position of the other surface of each hub disassembling and assembling gear (20) is connected with a hub disassembling and assembling gear fixing mechanism;
the sliding mechanism comprises a sliding block (18), a fifth through hole (28) is formed in the sliding block (18), the hub dismounting gear bearing (22) is arranged in the fifth through hole (28), the sliding block (18) is arranged on the inner sides of two sliding guide rails (16), the two sliding guide rails (16) are arranged between a first driven gear (8) and a second driven gear (9), and the two sliding guide rails (16) are parallel to the transmission chain (7);
the hub dismounting gear fixing column (21) is arranged between the first driven gear fixing column (12) and the second driven gear fixing column (13).
2. The synchronous replacer for automobile hub screws according to claim 1, wherein a plurality of fixing bolts (3) are arranged on the inner side of the first housing (1), and a plurality of bolt holes (29) are arranged on the inner side of the second housing (2) in corresponding positions.
3. The automobile wheel hub screw synchronous replacer of claim 2, characterized in that the driving gear (4) is provided with a through hole in the middle, one side of the through hole is an inner hexagonal hole (14), the other side of the through hole is connected with a driving gear bearing (5), and the driving gear (4) is movably connected with a driving gear fixing column (6) through the driving gear bearing (5).
4. The automobile hub screw synchronous replacer of claim 1, wherein a third through hole (26) is formed in the middle of the first driven gear (8), a first driven gear bearing (10) is arranged in the third through hole (26), the first driven gear bearing (10) is fixedly sleeved on the first driven gear fixing column (12), a fourth through hole (27) is formed in the middle of the second driven gear (9), a second driven gear bearing (11) is arranged in the fourth through hole (27), and the second driven gear bearing is fixedly sleeved on the second driven gear fixing column (13).
5. The automobile hub screw synchronous replacer of claim 1, wherein the hub dismounting gear fixing mechanism comprises a hub dismounting gear bearing (22), and the hub dismounting gear bearing (22) is sleeved on the hub dismounting gear fixing column (21).
6. The automobile hub screw synchronous replacer of claim 1, wherein the hub dismounting gear fixing mechanism comprises a hub dismounting gear fixing column (21), one end of the hub dismounting gear fixing column (21) is connected with a hub dismounting gear (20), the other end of the hub dismounting gear fixing column (21) is sleeved with a hub dismounting gear bearing (22), and the hub dismounting gear bearing (22) is connected with a sliding mechanism.
7. The automobile hub screw synchronous replacer of claim 1, wherein guide rail limiting plates (17) are respectively arranged at two ends of the inner side of the two sliding guide rails (16), steel ball fixing grooves (24) are arranged on the inner side surfaces of the two sliding guide rails (16), and steel balls (23) are arranged in the steel ball fixing grooves (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110303549.8A CN112936162B (en) | 2021-03-22 | 2021-03-22 | Synchronous formula replacer of automobile wheel hub screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110303549.8A CN112936162B (en) | 2021-03-22 | 2021-03-22 | Synchronous formula replacer of automobile wheel hub screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112936162A CN112936162A (en) | 2021-06-11 |
| CN112936162B true CN112936162B (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110303549.8A Expired - Fee Related CN112936162B (en) | 2021-03-22 | 2021-03-22 | Synchronous formula replacer of automobile wheel hub screw |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286741A (en) * | 2013-05-22 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Tire fast pretightening device for passenger car |
| US9186761B1 (en) * | 2015-07-28 | 2015-11-17 | Mubarak A. H. F. H. Al-Motoutah | Multi-socket wrench |
| CN208730702U (en) * | 2018-09-07 | 2019-04-12 | 刘安 | A kind of five screwing tools of lightweight |
| CN111422004A (en) * | 2020-04-16 | 2020-07-17 | 安徽科技学院 | Quick dismounting device of scraped car wheel |
| CN211967362U (en) * | 2020-04-02 | 2020-11-20 | 赵永俊 | Special tool for dismounting automobile tire bolt and nut |
-
2021
- 2021-03-22 CN CN202110303549.8A patent/CN112936162B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286741A (en) * | 2013-05-22 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Tire fast pretightening device for passenger car |
| US9186761B1 (en) * | 2015-07-28 | 2015-11-17 | Mubarak A. H. F. H. Al-Motoutah | Multi-socket wrench |
| CN208730702U (en) * | 2018-09-07 | 2019-04-12 | 刘安 | A kind of five screwing tools of lightweight |
| CN211967362U (en) * | 2020-04-02 | 2020-11-20 | 赵永俊 | Special tool for dismounting automobile tire bolt and nut |
| CN111422004A (en) * | 2020-04-16 | 2020-07-17 | 安徽科技学院 | Quick dismounting device of scraped car wheel |
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| Publication number | Publication date |
|---|---|
| CN112936162A (en) | 2021-06-11 |
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Granted publication date: 20220527 |