CN104959942B - Nut dismounting and mounting tool - Google Patents
Nut dismounting and mounting tool Download PDFInfo
- Publication number
- CN104959942B CN104959942B CN201510449798.2A CN201510449798A CN104959942B CN 104959942 B CN104959942 B CN 104959942B CN 201510449798 A CN201510449798 A CN 201510449798A CN 104959942 B CN104959942 B CN 104959942B
- Authority
- CN
- China
- Prior art keywords
- nut
- rod
- driving rod
- connecting rod
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 230000035939 shock Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000013011 mating Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention provides a nut dismounting and mounting tool. The nut dismounting and mounting tool comprises a ratchet wrench, a connecting rod, a driving rod and a sleeve-joint portion. A first end of the connecting rod is connected with a first end of the ratchet wrench. A first end of the driving rod is in transmission connection with a second end of the connecting rod. The sleeve-joint part is used for dismounting a nut and detachably mounted to a second end of the driving rod. When the nut is dismounted and mounted, the ratchet wrench is rotated to drive the connecting rod to rotate. The rotation of the connecting shaft drives the driving rod to rotate. When the driving rod rotates, the sleeve-joint portion installed at the second end of the driving rod rotates. The rotation of the sleeve-joint portion drives the nut, in sleeve joint with the sleeve-joint portion in matching mode, to rotate. The nut dismounting and mounting tool has following beneficial effects: transmission force between the connecting rod and the driving rod is utilized for dismount and mount the nut such that dismounting and mounting speed of the nut is increased and dismounting and mounting efficiency of the nut is improved.
Description
Technical Field
The invention relates to a special tool, in particular to a nut disassembling tool.
Background
Shock absorbers are vulnerable parts of automobiles and often need to be replaced. When the shock absorber is replaced, the method for dismounting and mounting the upper end fixing nut of the shock absorber assembly conventionally comprises the following steps: an external hexagonal head wrench is used for fixing the piston rod, and a wrench is used for screwing the nut. Because need use two spanners simultaneously, and two spanners must cooperate and just can dismantle the upper end fixation nut on the bumper shock absorber assembly, consequently, the speed of dismouting nut is very slow, and efficiency is very low.
Disclosure of Invention
In order to improve the speed of dismounting the nut and improve the efficiency of dismounting the nut, the invention provides a nut dismounting tool.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a nut remover comprising:
a ratchet wrench;
a connecting rod, a first end of the connecting rod being connected to a first end of the ratchet wrench;
the first end of the driving rod is in transmission connection with the second end of the connecting rod;
a sleeve joint part used for disassembling the nut, the sleeve joint part is detachably arranged at the second end of the driving rod, wherein,
when the nut is disassembled and assembled, the ratchet wrench is rotated, the ratchet wrench rotates to drive the connecting rod to rotate, the connecting rod rotates to drive the driving rod to rotate, when the driving rod rotates, the sleeving part installed at the second end of the driving rod rotates, and the sleeving part rotates to drive the nut which is sleeved by the sleeving part in a matched mode.
Optionally, the fixed cover of second end of connecting rod is equipped with first helical gear, the fixed cover of first end of actuating lever is equipped with the second helical gear, the connecting rod with the actuating lever passes through the meshing transmission of first helical gear and second helical gear is connected.
Optionally, the nut dismounting tool further comprises a hollow housing, the hollow housing comprises a first hollow housing part and a second hollow housing part connected with the first hollow housing part, the first hollow housing part is sleeved on the first helical gear, the second hollow housing part is sleeved on the second helical gear, and a through hole is formed in the positions, corresponding to the meshing transmission connection position of the first helical gear and the second helical gear, of the first hollow housing part and the second hollow housing part.
Optionally, the nut assembly and disassembly tools still includes a loop bar, the loop bar is cylindricly, the actuating lever is the cavity actuating lever, the cavity diameter of cavity actuating lever is greater than the outer circumference diameter of loop bar, the loop bar is followed the axial direction of actuating lever is inserted and is located in the actuating lever, just the first end of loop bar with second cavity casing portion fixed connection.
Optionally, a connecting piece is arranged at the first end of the loop bar and is connected with the second hollow shell portion in a matched mode, and the connecting piece is connected in the second hollow shell portion in a matched mode through threads.
Optionally, the nut dismounting tool further comprises a fixing portion for fixing the piston rod of the shock absorber, a universal connecting hole is formed in the second end of the sleeve rod, and the fixing portion is sleeved in the universal connecting hole.
Optionally, the fixing part is an outer hexagonal sleeve head.
Optionally, the nut dismounting tool further comprises a compression spring, the compression spring is sleeved in the universal connecting hole of the sleeve rod, and the compression spring is located on the inner side of the fixing portion and abuts against the fixing portion.
Optionally, the nut dismounting tool further comprises a bearing, an inner ring of the bearing is connected with the second end of the connecting rod in a matched manner, and an outer ring of the bearing is fixedly connected with the first hollow shell portion in a matched manner.
Optionally, a first square column connecting piece is arranged at the first end of the ratchet wrench, a first square sleeve head matched with the first square column connecting piece is arranged at the first end of the connecting rod, and the first end of the connecting rod and the first end of the ratchet wrench are fixedly connected through the matching of the first square column connecting piece and the inner square sleeve head.
Optionally, the socket joint portion is an inner hexagonal socket head, a first end of the inner hexagonal socket head is of an inner square structure, a second end of the inner hexagonal socket head is of an inner hexagonal structure, a second end of the driving rod is provided with a second square column connecting piece which is connected with the inner square structure in a matched manner, and a first end of the inner hexagonal socket head is installed on the second square column connecting piece in a matched manner.
The invention has the beneficial effects that:
the invention provides a nut dismounting tool which comprises a ratchet wrench, a connecting rod connected with the ratchet wrench, a driving rod in transmission connection with the connecting rod and a sleeving part arranged on the driving rod. When this nut assembly and disassembly tools dismouting nut, rotate ratchet spanner earlier, then the connecting rod of being connected with ratchet spanner rotates, and the actuating lever of being connected with the connecting rod transmission at last rotates, and when the actuating lever rotated, the portion of cup jointing of installing on the actuating lever rotated, then drove the nut that the portion of cup jointing cup jointed and rotate, and at this moment, can dismantle nut or fixation nut according to the demand. The nut dismounting tool provided by the invention can be used for dismounting the nut by utilizing the transmission force between the connecting rod and the driving rod, so that the dismounting speed of the nut is improved, and the efficiency of dismounting the nut is improved.
Drawings
FIG. 1 is a schematic diagram of the general assembly of a nut remover according to an embodiment of the present invention;
FIG. 2 shows an exploded view of a nut remover according to an embodiment of the present invention;
FIG. 3 shows a schematic view of a drive connection of a connecting rod and a drive rod in an embodiment of the invention;
FIG. 4 shows an enlarged schematic view of the drive connection of FIG. 3;
FIG. 5 is a schematic view of a stem fitted with an external hex head in an embodiment of the present invention;
FIG. 6 shows a schematic view of a compression spring in an embodiment of the invention;
FIG. 7 is a schematic view of an outer hex socket according to an embodiment of the present invention;
FIG. 8 shows a schematic view of a connecting rod in an embodiment of the invention; and
fig. 9 shows a schematic view of a drive rod in an embodiment of the invention.
Wherein in the figure:
1. a ratchet wrench; 2. a connecting rod; 3. a drive rod; 4. a socket joint part; 5. a hollow housing; 6. a loop bar; 7. a fixed part; 8. a compression spring; 9. a bearing;
11. a first square column connector;
21. a first helical gear; 22. an inner square sleeve head;
31. a second helical gear; 32. a second square column connector; 33. a ball bearing;
51. a first hollow housing portion; 52. a second hollow housing portion;
61. connecting sheets; 62. and universal connecting holes.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, in an embodiment of the present invention, the nut dismounting tool includes a ratchet wrench 1, a connecting rod 2, a driving rod 3, and a socket 4 for dismounting a nut, wherein a first end of the connecting rod 2 is connected to a first end of the ratchet wrench 1, a first end of the driving rod 3 is in transmission connection with a second end of the connecting rod 2, and the socket 4 is detachably mounted on the second end of the driving rod 3.
When this nut assembly and disassembly tools dismouting nut, at first rotate ratchet spanner 1, ratchet spanner 1 rotates and drives connecting rod 2 and rotate, and connecting rod 2 rotates and drives actuating lever 3 and rotates, and actuating lever 3 rotates and drives the portion of cup jointing 4 of installing second department on actuating lever 3 and rotate, and portion of cup jointing 4 rotates and drives the nut rotation of cup jointing on portion of cup jointing 4, and when the nut rotated, nut or fixation nut can be dismantled according to the demand. This embodiment utilizes the transmission power between connecting rod 2 and the actuating lever 3 to carry out the dismouting to the nut, has improved the dismouting speed of nut to the efficiency of dismouting nut has been improved.
In another embodiment of the invention, as shown in fig. 2-4, the drive connection of the connecting rod 2 and the drive rod 3 may be a staggered axial helical gear mesh drive connection. Wherein, the fixed cover of second end of connecting rod 2 is equipped with first helical gear 21, and the fixed cover of first end of actuating lever 3 is equipped with second helical gear 31, and connecting rod 2 and actuating lever 3 are through the meshing transmission connection between first helical gear 21 and the second helical gear 31.
In this embodiment, the connecting rod 2 and the driving rod 3 are connected by a bevel gear meshing transmission, specifically, when the first bevel gear 21 rotates, the first bevel gear 21 drives the second bevel gear 31 to rotate by virtue of the meshing force between the first bevel gear 21 and the second bevel gear 31, so as to drive the driving rod 3 fixedly sleeved with the second bevel gear 31 to rotate.
With continued reference to fig. 2, in another embodiment of the present invention, the nut remover further comprises a hollow housing 5. The hollow housing 5 includes a first hollow housing part 51 and a second hollow housing part 52 connected to the first hollow housing part 51, wherein the first hollow housing part 51 is sleeved on the first bevel gear 21, the second hollow housing part 52 is sleeved on the second bevel gear 31, and a through hole (not shown in the figure) is provided at a position on the first hollow housing part 51 and the second hollow housing part 52 corresponding to the meshing transmission connection position of the first bevel gear 21 and the second bevel gear 31, so that the first hollow housing part 51 sleeved on the first bevel gear 21 and the second hollow housing part 52 sleeved on the second bevel gear 31 do not affect the meshing transmission between the first bevel gear 21 and the second bevel gear 31.
In the present embodiment, the hollow housing 5 protects the first and second bevel gears 21 and 31 so that the first and second bevel gears 21 and 31 are not exposed to the outside.
Referring to fig. 2 and 5 to 7, in another embodiment of the present invention, the nut dismounting tool further includes a sleeve rod 6, the sleeve rod 6 is cylindrical, and in particular, the sleeve rod 6 may also be a hollow sleeve rod in order to reduce the weight of the sleeve rod 6. The loop bar 6 is used for being connected with the cooperation of actuating lever 3, and wherein, actuating lever 3 is the cavity actuating lever, and the cavity diameter of actuating lever 3 is greater than the outer circumference diameter of loop bar 6, and loop bar 6 inserts along the axial direction of actuating lever 3 and locates in actuating lever 3, and the first end of loop bar 6 and the second cavity of cavity casing 5 are equipped with 52 fixed connection, and the second end fixedly connected with of loop bar 6 is used for the fixed part 7 of fixed bumper shock absorber piston rod. Specifically, the fixing portion 7 may be an outer hexagonal socket.
Specifically, a connecting piece 61 that is connected to the second hollow housing 52 in a matching manner may be disposed at the first end of the loop bar 6, and the loop bar 6 and the second hollow housing 52 may be fixedly connected by a screw connection between the connecting piece 61 and the second hollow housing 52. In addition, a universal connection hole 62 may be provided at the second end of the loop bar 6, and the fixing portion 7 is sleeved in the universal connection hole 62. Optionally, when the fixing portion 7 is an outer hexagonal socket, the inner wall of the universal connecting hole 62 is a hexagonal structure which is connected with the outer hexagonal socket in a matching manner, and the outer hexagonal socket can be nested in the universal connecting hole 62 in a matching manner with the hexagonal structure.
In the present embodiment, the sleeve rod 6 is inserted into the driving rod 3 and fixed on the second hollow housing portion 52 of the hollow housing 5 through the connecting piece 61, when the second bevel gear 31 rotates the driving rod 3, since the sleeve rod 6 only passes through the inside of the driving rod 3 and is not connected with the driving rod 3, the sleeve rod 6 does not rotate with the driving rod 3, and accordingly, the fixing portion 7 sleeved in the universal connecting hole 62 on the sleeve rod 6 also does not rotate with the driving rod 3. Therefore, when the nut removing tool is used to remove the upper end fixing nut of the damper assembly, the damper piston rod can be fixed by the fixing portion 7 and then the nut can be rotated by the sleeve portion 4.
In this embodiment, the nut assembly and disassembly tools can fix the bumper shock absorber piston rod and rotate the nut simultaneously, and need not the extra fixed bumper shock absorber piston rod of spanner for use again, when having changed the nut on dismantling the bumper shock absorber assembly now, fix the piston rod with an outer hexagon head spanner earlier, the current situation of nut is twisted to a spanner of reuse, has improved the speed of dismouting nut to the efficiency of dismouting nut has been improved.
Specifically, in order to improve the flexibility of the fixing portion 7 in fixing the piston rod of the shock absorber so that the fixing portion 7 can have the movement amount in the universal connecting hole 62 of the sleeve rod 6, a compression spring 8 can be firstly sleeved in the universal connecting hole 62, then the fixing portion 7 can be sleeved in the universal connecting hole 62, and the compression spring 8 is abutted against the fixing portion 7.
Referring to fig. 2 and 8, in another embodiment of the present invention, the connecting rod 2 is fixedly connected to the ratchet wrench 1 and the hollow housing 5, respectively. Specifically, a first square column connecting piece 11 is arranged at the first end of the ratchet wrench 1, an inner square sleeve head 22 matched with the first square column connecting piece 11 is arranged at the first end of the connecting rod 2, and the connecting rod 2 and the ratchet wrench 1 are fixedly connected with the first square column connecting piece 11 through the matching of the inner square sleeve head 22. In addition, the nut dismounting tool further comprises a bearing 9, the connecting rod 2 is fixedly connected with the hollow shell 5 through the bearing 9, wherein an inner ring of the bearing 9 is connected with the second end of the connecting rod 2 in a matching manner, and an outer ring of the bearing 9 is connected with the first hollow shell part 51 of the hollow shell part 5 in a matching manner.
In this embodiment, ratchet wrench 1 is through the cooperation of first square spliced pole 11 and interior square pullover 22 and connecting rod 2 fixed connection, when rotating ratchet wrench 1, connecting rod 2 rotates along with it, at this moment, because the inner circle of bearing 9 is connected with the second end cooperation of connecting rod 2, the outer lane of bearing 9 and the cooperation fixed connection of first cavity casing 51, consequently, bearing 9 does not influence the rotation of connecting rod 2, do not influence the rotation of first helical gear 21 on connecting rod 2 promptly, bearing 9 has still fixed connecting rod 2 on first cavity casing 51 simultaneously, the driven stationarity of first helical gear 21 and second helical gear 31 has been strengthened.
Referring to fig. 2 and 9, in another embodiment of the present invention, the sleeve portion 4 may be an inner hexagonal sleeve, and the inner hexagonal sleeve is sleeved at the second end of the driving rod 3, wherein the first end of the inner hexagonal sleeve is of an inner square structure, the second end of the inner hexagonal sleeve is of an inner hexagonal structure, the second end of the driving rod 3 is provided with a second square column connector 32 in fit connection with the inner square structure, and when the inner hexagonal sleeve is mounted on the driving rod 3, the first end of the inner hexagonal sleeve is in fit connection with the second square column connector 32. Specifically, in order to increase the assembling firmness of the socket head and the second square column connecting member 32, a plurality of balls 33 may be disposed on the second square column connecting member 32.
According to the nut dismounting tool provided by the invention, on one hand, the damper piston rod can be fixed by using the fixing part on the sleeve rod fixedly connected with the second hollow shell part, and on the other hand, the sleeve part detachably arranged on the driving rod can be rotated by using the meshing transmission relation between the first helical gear on the connecting rod and the second helical gear on the driving rod, so that the nut sleeved with the sleeve part is rotated, and the dismounting or mounting of the nut at the upper end of the damper assembly is completed. The nut disassembling tool provided by the invention can simultaneously fix the piston rod of the damper and rotate the nut, and when the nut on the damper assembly is not disassembled, the piston rod is fixed by using an external hexagonal head wrench firstly, and then the nut is screwed by using one wrench, so that the disassembling speed of the nut is improved, and the disassembling efficiency of the nut is improved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A nut remover, comprising:
a ratchet wrench;
a connecting rod, a first end of the connecting rod being connected to a first end of the ratchet wrench;
the first end of the driving rod is in transmission connection with the second end of the connecting rod;
the sleeve joint part is used for disassembling the nut and detachably arranged at the second end of the driving rod;
wherein,
the second end of the connecting rod is fixedly sleeved with a first helical gear, the first end of the driving rod is fixedly sleeved with a second helical gear, and the connecting rod is in transmission connection with the driving rod through the meshing of the first helical gear and the second helical gear;
the nut dismounting tool further comprises a hollow shell, the hollow shell comprises a first hollow shell part and a second hollow shell part connected with the first hollow shell part, the first hollow shell part is sleeved on the first helical gear, the second hollow shell part is sleeved on the second helical gear, and through holes are formed in the positions, corresponding to the meshing transmission connection positions of the first helical gear and the second helical gear, of the first hollow shell part and the second hollow shell part;
the nut dismounting tool further comprises a sleeve rod, the sleeve rod is cylindrical, the driving rod is a hollow driving rod, the hollow diameter of the hollow driving rod is larger than the diameter of the outer circumference of the sleeve rod, the sleeve rod is inserted into the driving rod along the axial direction of the driving rod, and the first end of the sleeve rod is fixedly connected with the second hollow shell part;
when the nut is disassembled and assembled, the ratchet wrench is rotated, the ratchet wrench rotates to drive the connecting rod to rotate, the connecting rod rotates to drive the driving rod to rotate, when the driving rod rotates, the sleeving part installed at the second end of the driving rod rotates, and the sleeving part rotates to drive the nut which is sleeved by the sleeving part in a matched mode.
2. The nut remover as claimed in claim 1, wherein said shank first end is provided with a connecting tab for mating connection with said second hollow housing portion, said connecting tab being threadably connected within said second hollow housing portion.
3. The nut remover according to claim 2, further comprising a fixing portion for fixing the piston rod of the shock absorber, wherein the second end of the sleeve rod is provided with a universal coupling hole, and the fixing portion is sleeved in the universal coupling hole.
4. The nut remover as claimed in claim 3, wherein said retainer is a male hex head.
5. The nut remover according to claim 3, further comprising a compression spring disposed within the universal connection hole of the sleeve rod, the compression spring being disposed inside the fixed portion and abutting against the fixed portion.
6. The nut remover according to claim 1, further comprising a bearing, wherein an inner race of the bearing is engaged with the second end of the connecting rod, and an outer race of the bearing is engaged with and fixedly connected to the first hollow housing portion.
7. The nut remover according to claim 1, wherein the first end of the ratchet wrench is provided with a first square column connector, the first end of the connecting rod is provided with an inner square socket engaged with the first square column connector, and the first end of the connecting rod and the first end of the ratchet wrench are fixedly connected through engagement of the inner square socket and the first square column connector.
8. The nut dismounting tool according to claim 1, wherein the socket portion is an inner hexagonal socket, a first end of the inner hexagonal socket is of an inner square structure, a second end of the inner hexagonal socket is of an inner hexagonal structure, a second square column connector connected with the inner square structure in a matched manner is arranged at a second end of the driving rod, and the first end of the inner hexagonal socket is mounted on the second square column connector in a matched manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510449798.2A CN104959942B (en) | 2015-07-28 | 2015-07-28 | Nut dismounting and mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510449798.2A CN104959942B (en) | 2015-07-28 | 2015-07-28 | Nut dismounting and mounting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104959942A CN104959942A (en) | 2015-10-07 |
| CN104959942B true CN104959942B (en) | 2017-05-17 |
Family
ID=54214113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510449798.2A Expired - Fee Related CN104959942B (en) | 2015-07-28 | 2015-07-28 | Nut dismounting and mounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104959942B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563396A (en) * | 2016-03-04 | 2016-05-11 | 江西洪都航空工业集团有限责任公司 | Special screw cap tightening combined tool |
| CN107186470A (en) * | 2017-07-05 | 2017-09-22 | 郑州云海信息技术有限公司 | A kind of monoblock type dismantling device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4680994A (en) * | 1985-06-20 | 1987-07-21 | Sidewinder Products Corporation | Socket wrench with reversing ratchet |
| CN86210133U (en) * | 1986-12-08 | 1988-03-16 | 钟华庆 | Railway spanner |
| CN201168946Y (en) * | 2008-02-29 | 2008-12-24 | 单悌富 | Deviator of socket wrench |
| CN201537891U (en) * | 2009-12-14 | 2010-08-04 | 冉来明 | Normal axis wrench suitable for a small operation space |
| CN202169552U (en) * | 2011-07-27 | 2012-03-21 | 陈国桥 | Quick socket wrench |
| CN204893782U (en) * | 2015-07-28 | 2015-12-23 | 北京汽车研究总院有限公司 | Nut assembly and disassembly tools |
-
2015
- 2015-07-28 CN CN201510449798.2A patent/CN104959942B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104959942A (en) | 2015-10-07 |
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Effective date of registration: 20200828 Address after: 100130 Zhaofeng Town, Shunyi District, Beijing Zhaofeng industrial base Tongxin Road No. 1 Patentee after: BAIC GROUP ORV Co.,Ltd. Address before: 101300, 99, Shuanghe Avenue, Renhe Town, Beijing, Shunyi District Patentee before: BEIJING AUTOMOBILE RESEARCH GENERAL INSTITUTE Co.,Ltd. |
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Granted publication date: 20170517 |
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| CF01 | Termination of patent right due to non-payment of annual fee |