CN110039477A - A kind of small space special sleeve spanner - Google Patents
A kind of small space special sleeve spanner Download PDFInfo
- Publication number
- CN110039477A CN110039477A CN201910484836.6A CN201910484836A CN110039477A CN 110039477 A CN110039477 A CN 110039477A CN 201910484836 A CN201910484836 A CN 201910484836A CN 110039477 A CN110039477 A CN 110039477A
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- Prior art keywords
- spanner
- small space
- transmission
- seat board
- frame
- Prior art date
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- 230000005540 biological transmission Effects 0.000 claims abstract description 97
- 230000007246 mechanism Effects 0.000 claims abstract description 89
- 239000002184 metal Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 239000000696 magnetic material Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000012356 Product development Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 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
- B25B13/02—Spanners; Wrenches with rigid jaws
- B25B13/06—Spanners; Wrenches with rigid jaws of socket type
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/16—Handles
Abstract
A kind of small space special sleeve spanner provided by the invention, including spanner rotating handle and transmission mechanism, spanner rotating handle is arranged in transmission mechanism one end, fixed mechanism is equipped with outside transmission mechanism, the transmission mechanism is equipped with reversing mechanism far from one end of spanner rotating handle, reversing mechanism is equipped with fastener head far from one end of transmission mechanism, and fixed mechanism and transmission mechanism are equipped with length adjustment mechanism.The present invention is for the screw that is in small space, it is able to carry out quickly elastic, solves that existing small space spanner driving force is small, the problem for using assembling complicated, when avoiding using common ratchet wrench, handle twisting when by twisting direction two side walls influenced and reduce screw tightness efficiency the problem of.It can match the space structure of different wall surface width, depth, and easy to carry, install and use it is also very convenient, while use simple rotation process, laborsaving save space, industry assembling and production and living field have wide applicability.
Description
Technical field
The present invention relates to technical field of tools, and specifically, present invention relates particularly to a kind of spanner technical fields.
Background technique
With industrial development, the quality requirement of the high-end manufacture product such as product especially aviation, high-speed rail is continuously improved,
Want to dominate the market and catch up with or catch up with and surpass the leading level in the world and will produce the novel product of product development of high quality it is necessary to guarantee to have
There is the advantage of advanced tooling.Must have rationally applicable tooling in the processing of the components of product, superior technological equipment and
Advanced tooling is ensured of high quality necessary means.Special spanner is an essential basic link, can not only be expanded
The range of its big fastening, it is ensured that product quality is raised labour productivity, and is also the important hand for improving worker's working ability
Section.Such as the hollow space of certain cube of only one side opening, ratchet spanner parbuckle screw, ratchet are used in this space
The power-assisted in each anti-twisted power direction rotates, and due to the limitation of two wall surface of cubic space or so, can only rotate the angle of very little,
Therefore in parbuckle screw, each rotation of ratchet spanner can only make screw rotate seldom screw thread travel, cannot play ratchet
The advantage of spanner.
But this special spanner is also seldom because of the limited exploitation in market, some the pulling suitable for small space developed
Hand, such as a kind of small space operation spanner of patent CN204308845U have remote operated characteristic, but flexible drive
Cause driving force too small, the power for confining screw is limited, although a kind of electric wrench universal rotational tool of CN205703935U makes
It is overcome with right-angled geared transmission and bears that torque is smaller, but this spanner poor operability can not be seen in small space
Component locations are easy to fall into screw in gap, also cause transmission parts to need to go to fix with hand without fixed structure, quickly revolve
The motor and transmission parts turned can injure operator, and velocity of rotation is slower.Therefore, one kind is needed in present industrial production and life
The spanner that can be quickly used in small space.
Summary of the invention
For in parbuckle screw, each rotation of ratchet spanner can only make screw rotate seldom spiral shell in the prior art
Line stroke, the technical issues of cannot playing the advantage of ratchet spanner, the present invention originally provides a kind of small space special sleeve spanner,
It is driven using gear wheel reversing, changes acting direction, improve mechanical efficiency, increase acting torque, it is strong to reduce labour
Degree, improves transmission stability, and realize stable drive bar using bracket and fixed mechanism, can be efficiently quickly narrow
Production operation is completed in small space, has wide applicability in industrial assembling field.
A kind of small space special sleeve spanner provided by the invention, including spanner rotating handle and transmission mechanism, spanner rotating handle are set
It sets and is equipped with fixed mechanism outside transmission mechanism one end, transmission mechanism, the transmission mechanism is equipped with far from one end of spanner rotating handle
Reversing mechanism, reversing mechanism are equipped with fastener head far from one end of transmission mechanism, and fixed mechanism and transmission mechanism are equipped with length tune
Save mechanism.
In the present invention, fixed mechanism includes upper frame and lower frame, and two groups of length tune are equipped between upper frame and lower frame
Mechanism is saved, length adjustment mechanism includes frame body connector sleeve and frame body tightening nut, and frame body connector sleeve is socketed in upper frame and undercarriage
On the outside of the opposite one end of body, frame body tightening nut is equipped in the middle part of frame body connector sleeve.
In the present invention, upper frame is equipped with spanner rotating handle, and the spanner rotating handle is u-shaped, spanner rotating handle bottom and transmission
Structure connection, spanner rotating handle top are equipped with two groups of handles.
In the present invention, upper frame top two sides are respectively provided with a set of clamping device, clamping device include two pieces of flexible clamping plates and
Rocking bar, the flexible clamping plate far from frame body are equipped with rocking bar, and rocking bar one end is equipped with swingle, and rocking bar is equipped with far from one end of swingle
Screw thread
In the present invention, transmission mechanism includes shaft coupling, upper transmission shaft, lower drive shaft, reversing mechanism, and spanner rotating handle lower part is set
There is upper transmission shaft, upper transmission shaft is equipped with shaft coupling, and upper transmission shaft lower part is equipped with lower drive shaft, and lower drive shaft lower part is equipped with commutation
Mechanism；Length adjustment mechanism is equipped between upper transmission shaft and lower drive shaft, length adjustment mechanism includes connector sleeve and connector sleeve spiral shell
Thread, connector sleeve is socketed with outside upper transmission shaft and the corresponding one end of lower drive shaft, connector sleeve is that side sets crannied cylinder
Shape, the crannied side of connector sleeve are equipped with connector sleeve screw.
In the present invention, reversing mechanism includes the first transmission gear and the second transmission gear, and lower drive shaft lower part is equipped with first
Transmission gear, fixed mechanism position corresponding with the first transmission gear are equipped with the second transmission gear, the first transmission gear and second
Transmission gear is adapted setting, and the second transmission gear is connect with fixed mechanism bearing, and the second transmission gear is connect with fastener head.
In the present invention, fixed mechanism lower part is equipped with bearing plate, and lower drive shaft lower part is equipped with middle (center) bearing seat board, upper transmission shaft
It is equipped with upper bearing (metal) seat board, bearing plate and lower drive shaft positioned at the side on shaft coupling top to connect by base bearing seat, middle (center) bearing
Seat board is connected with lower drive shaft by bottom bracket, and upper bearing (metal) seat board is connected with upper transmission shaft by top chock.
In the present invention, fastener head is one of interior six side, sleeve or Philip's head screw cutter head, straight screwdriver head.
In the present invention, fastener head end is magnetic material.
In the present invention, upper bearing (metal) seat board is fixed by seat board screw and upper frame, middle (center) bearing seat board by seat board screw and
Lower frame is fixed.
Beneficial effects of the present invention:
A kind of small space special sleeve spanner provided by the invention is able to carry out the screw being in small space
It is quickly elastic, it solves that existing small space spanner driving force is small, using the problem that assembling is complicated, avoids using common ratchet
When pulling, handle twisting when by twisting direction two side walls influenced and reduce screw tightness efficiency the problem of.It can be matched not
It with the space structure of wall surface width, depth, and easy to carry, installs and uses also very convenient, while using simple rotation
Turn operation, laborsaving save space has wide applicability in industry assembling and production and living field.
Detailed description of the invention
Fig. 1 is positive structure diagram of the present invention；
Fig. 2 is side structure schematic view of the present invention；
Fig. 3 is schematic diagram of the three-dimensional structure one；
Fig. 4 is schematic diagram of the three-dimensional structure two；
Fig. 5 is schematic diagram of the three-dimensional structure three；
Fig. 6 is small space of the present invention operation demonstration schematic diagram.
In Fig. 1-6,1- upper frame, 2- lower frame, 3- upper bearing (metal) seat board, 4- shaft coupling, the upper transmission shaft of 5-, 6- connector sleeve,
7- lower drive shaft, 8- bearing plate, the first transmission gear of 9-, the second transmission gear of 10-, 11- fastener head, 12- handle, 13- connect
Female connector screw, 14- flexible clamping plate, 15- rocking bar, 16- spanner rotating handle, 17- frame body connector sleeve, 18- frame body tightening nut, the bottom 19-
Bearing block, 20- bottom bracket, 21- top chock, 22- are by fastening screw.
Specific embodiment
Specific embodiments of the present invention will be described in further detail for 1-6 and embodiment with reference to the accompanying drawing, but this hair
Bright method is not limited to following embodiments.
In the present invention, for ease of description, in the present invention, the description of the relative positional relationship of each component is according to attached
The Butut mode of Fig. 1 is described, such as: upper and lower, left and right positional relationship is determined according to the Butut direction of attached drawing 1
's.
Used upper frame 1, lower frame 2, upper bearing (metal) seat board 3, shaft coupling 4, upper transmission shaft 5, connector sleeve in the present invention
6, lower drive shaft 7, bearing plate 8, the first transmission gear 9, the second transmission gear 10, fastener head 11, connector sleeve screw 13, flexible
Clamping plate 14, rocking bar 15, spanner rotating handle 16, frame body connector sleeve 17, frame body tightening nut 18, base bearing seat 19, bottom bracket 20, on
Bearing block 21 and by fastening screw 22 all pass through market approach purchase or customization.
A kind of small space special sleeve spanner provided by the invention, including spanner rotating handle 16 and transmission mechanism, spanner rotating handle
16 settings are equipped with fixed mechanism, the one end of the transmission mechanism far from spanner rotating handle outside transmission mechanism one end, transmission mechanism
Equipped with reversing mechanism, reversing mechanism is equipped with fastener head 11 far from one end of transmission mechanism, and fixed mechanism and transmission mechanism are equipped with
Length adjustment mechanism.
Embodiment one: the small space special sleeve spanner of the present invention
In the present invention, fixed mechanism includes upper frame 1 and lower frame 2, is equipped between upper frame 1 and lower frame 2 two groups long
Regulating mechanism is spent, length adjustment mechanism includes frame body connector sleeve 17 and frame body tightening nut 18, and frame body connector sleeve 17 is socketed in
On the outside of frame body 1 and the opposite one end of lower frame 2, frame body tightening nut 18 is equipped in the middle part of frame body connector sleeve 17.
In the present invention, upper frame 1 is equipped with spanner rotating handle 16, and the spanner rotating handle 16 is u-shaped, 16 bottom of spanner rotating handle
It is connected with drive mechanism, 16 top of spanner rotating handle is equipped with two groups of handles 12.
In the present invention, 1 top two sides of upper frame are respectively provided with a set of clamping device, and clamping device includes two pieces of flexible clamping plates 14
With rocking bar 15, the flexible clamping plate 14 far from frame body is equipped with rocking bar 15, and 15 one end of rocking bar is equipped with swingle, and rocking bar 15 is far from rotation
One end of bar is equipped with screw thread
In the present invention, transmission mechanism includes shaft coupling 4, upper transmission shaft 5, lower drive shaft 7, reversing mechanism, spanner rotating handle 16
Lower part is equipped with upper transmission shaft 5, and upper transmission shaft 5 is equipped with shaft coupling 4, and upper 5 lower part of transmission shaft is equipped with lower drive shaft 7, lower drive shaft 7
Lower part is equipped with reversing mechanism；Length adjustment mechanism is equipped between upper transmission shaft 5 and lower drive shaft 7, length adjustment mechanism includes connecting
Connector sleeve 6, connector sleeve 6 are socketed with outside female connector 6 and connector sleeve screw 13, upper transmission shaft 5 and the corresponding one end of lower drive shaft 7
Crannied cylindrical shape is set for side, the crannied side of connector sleeve 6 is equipped with connector sleeve screw 13.
In the present invention, reversing mechanism includes the first transmission gear 9 and the second transmission gear 10, and 7 lower part of lower drive shaft is equipped with
First transmission gear 9, fixed mechanism position corresponding with the first transmission gear 9 are equipped with the second transmission gear 10, the first driving cog
Wheel 9 and the second transmission gear 10 are adapted setting, and the second transmission gear 10 is connect with fixed mechanism bearing, the second transmission gear 10
It is connect with fastener head 11.
In the present invention, fixed mechanism lower part is equipped with bearing plate 8, and 7 lower part of lower drive shaft is equipped with middle (center) bearing seat board 8, uploads
The side that moving axis 5 is located at 4 top of shaft coupling is equipped with upper bearing (metal) seat board 3, and bearing plate 8 and lower drive shaft 7 pass through base bearing seat 19
Connection, middle (center) bearing seat board 8 and lower drive shaft 7 are connected by bottom bracket 20, and upper bearing (metal) seat board 3 and upper transmission shaft 5 pass through upper axis
Hold the connection of seat 21.
In the present invention, fastener head 11 is one of interior six side, sleeve or Philip's head screw cutter head, straight screwdriver head.
In the present invention, 11 end of fastener head is magnetic material.
In the present invention, upper bearing (metal) seat board 3 is fixed by seat board screw and upper frame 1, and middle (center) bearing seat board 8 passes through seat board screw
It is fixed with lower frame 2.
Embodiment two: the small space special sleeve spanner of the present invention
In the present invention, transmission mechanism includes transmission shaft, reversing mechanism, and transmission shaft lower part is equipped with reversing mechanism；Transmission shaft point
For 7 two-section of upper transmission shaft 5 and lower drive shaft, transmission shaft middle part is equipped with length adjustment mechanism, and length adjustment mechanism includes connector sleeve 6
With connector sleeve screw 13, connector sleeve 6 is socketed with outside upper transmission shaft 5 and the corresponding one end of lower drive shaft 7, connector sleeve 6 is one
Side sets crannied cylindrical shape, and the crannied side of connector sleeve 6 is equipped with connector sleeve screw 13.
In the present invention, reversing mechanism is commutator, and the one end of commutator far from transmission shaft is connect with fastener head 11.
In the present invention, fixed mechanism lower part is equipped with bearing plate 8, and 7 lower part of lower drive shaft is equipped with middle (center) bearing seat board 8, uploads
The side that moving axis 5 is located at 4 top of shaft coupling is equipped with upper bearing (metal) seat board 3, and bearing plate 8 and lower drive shaft 7 pass through base bearing seat 19
Connection, middle (center) bearing seat board 8 and lower drive shaft 7 are connected by bottom bracket 20, and upper bearing (metal) seat board 3 and upper transmission shaft 5 pass through upper axis
Hold the connection of seat 21.
In the present invention, the preferred sleeve of fastener head 11.
In the present invention, 11 end of fastener head is magnetic material.
In the present invention, upper bearing (metal) seat board 3 is fixed by seat board screw and upper frame 1, and middle (center) bearing seat board 8 passes through seat board screw
It is fixed with lower frame 2.
Embodiment three: apparatus of the present invention are applicable in
When being applicable in small space special sleeve spanner of the invention, first spanner is protruded into small space, according to space internal thread
Position, adjust frame body tightening nut 18, upper frame 1 and lower frame 2 adjusted to after suitable length, the elastic spiral shell of frame body is screwed
Mother 18.Simultaneously the bearing connector sleeve 6 between upper transmission shaft 5 and lower drive shaft 7 be also required to by connector sleeve screw 13 it is elastic into
The same operation of row arrives suitable length so that upper transmission shaft 5 is adjusted with lower drive shaft 7.
Installation and the fastener head 11 that is adapted by fastening screw 22, spanner is put into small space, by sleeve or its
He is aligned by fastening screw 22 fastener head 11.
Rotation adjusts rocking bar 15, adjusts flexible 14 position of clamping plate, utilizes the two sides of two tight small spaces of flexible clamping plate 14
Wall surface.
Rotary spanner rotating handle carries out elastic operation to screw.
The small space special sleeve spanner of the present invention solves the problems, such as that small space internal thread is fixed very well, can be for not
With screw rapidly and efficiently screw or Panasonic, fast and easy is efficient, and it is big to bear torque, carry be applicable in it is convenient, in work
Industry assembling and maintenance field have wide applicability.
As described above, the present invention can be realized preferably, the above embodiments are only to preferred implementation side of the invention
Formula is described, and is not intended to limit the scope of the present invention, and without departing from the spirit of the design of the present invention, this field is general
The various changes and improvements that logical technical staff makes technical solution of the present invention, should all fall into present invention determine that protection scope
It is interior.
Claims (10)
1. a kind of small space special sleeve spanner, including spanner rotating handle and transmission mechanism, spanner rotating handle is arranged in transmission mechanism one
End, which is characterized in that fixed mechanism is equipped with outside transmission mechanism, the transmission mechanism is equipped with commutation far from one end of spanner rotating handle
Mechanism, reversing mechanism are equipped with fastener head far from one end of transmission mechanism, and fixed mechanism and transmission mechanism are equipped with length adjustment machine
Structure.
2. small space special sleeve spanner as described in claim 1, which is characterized in that the fixed mechanism include upper frame and
Lower frame is equipped with two groups of length adjustment mechanisms between upper frame and lower frame, length adjustment mechanism includes frame body connector sleeve and frame
Body tightening nut, frame body connector sleeve are socketed on the outside of upper frame and the opposite one end of lower frame, and frame is equipped in the middle part of frame body connector sleeve
Body tightening nut.
3. small space special sleeve spanner as claimed in claim 2, which is characterized in that the upper frame is revolved equipped with spanner
Handle, the spanner rotating handle is u-shaped, and spanner rotating handle bottom is connected with drive mechanism, and spanner rotating handle top is equipped with two groups of handles.
4. small space special sleeve spanner as claimed in claim 2, which is characterized in that upper frame top two sides are respectively provided with
A set of clamping device, clamping device include two pieces of flexible clamping plates and rocking bar, and the flexible clamping plate far from frame body is equipped with rocking bar, rocking bar
One end is equipped with swingle, and rocking bar is equipped with screw thread far from one end of swingle.
5. small space special sleeve spanner as described in claim 1, which is characterized in that the transmission mechanism include shaft coupling,
Upper transmission shaft, lower drive shaft, reversing mechanism, spanner rotating handle lower part are equipped with upper transmission shaft, and upper transmission shaft is equipped with shaft coupling, upload
Moving axis lower part is equipped with lower drive shaft, and lower drive shaft lower part is equipped with reversing mechanism；Length is equipped between upper transmission shaft and lower drive shaft
Regulating mechanism, length adjustment mechanism include connector sleeve and connector sleeve screw, outside upper transmission shaft and the corresponding one end of lower drive shaft
Portion is socketed with connector sleeve, and connector sleeve is that side sets crannied cylindrical shape, and the crannied side of connector sleeve is equipped with connector sleeve screw.
6. small space special sleeve spanner as claimed in claim 5, which is characterized in that the reversing mechanism includes the first transmission
Gear and the second transmission gear, lower drive shaft lower part are equipped with the first transmission gear, and fixed mechanism is corresponding with the first transmission gear
Position is equipped with the second transmission gear, and the first transmission gear and the second transmission gear are adapted setting, the second transmission gear and fixation
The connection of mechanism bearing, the second transmission gear are connect with fastener head.
7. small space special sleeve spanner as claimed in claim 5, which is characterized in that the fixed mechanism lower part is equipped with bearing
Seat board, lower drive shaft lower part are equipped with middle (center) bearing seat board, and the side that upper transmission shaft is located at shaft coupling top is equipped with upper bearing (metal) seat board, axis
It holds seat board and is connected with lower drive shaft by base bearing seat, middle (center) bearing seat board is connected with lower drive shaft by bottom bracket, upper bearing (metal)
Seat board is connected with upper transmission shaft by top chock.
8. small space special sleeve spanner as described in claim 1, which is characterized in that the fastener head is interior six side, sleeve
Or one of Philip's head screw cutter head, straight screwdriver head.
9. small space special sleeve spanner as described in claim 1, which is characterized in that the fastener head end is magnetic material
Material.
10. small space special sleeve spanner as claimed in claim 7, which is characterized in that the upper bearing (metal) seat board passes through seat board
Screw and upper frame are fixed, and middle (center) bearing seat board is fixed by seat board screw and lower frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484836.6A CN110039477B (en) | 2019-06-05 | 2019-06-05 | Socket wrench special for small space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484836.6A CN110039477B (en) | 2019-06-05 | 2019-06-05 | Socket wrench special for small space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110039477A true CN110039477A (en) | 2019-07-23 |
| CN110039477B CN110039477B (en) | 2023-12-15 |
Family
ID=67284578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910484836.6A Active CN110039477B (en) | 2019-06-05 | 2019-06-05 | Socket wrench special for small space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110039477B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722497A (en) * | 2019-11-18 | 2020-01-24 | 中核核电运行管理有限公司 | Torque wrench for limited space |
| CN110977853A (en) * | 2019-12-19 | 2020-04-10 | 四川大学 | Automatic electric control wrench for tightening bolt in narrow space |
| CN112223186A (en) * | 2020-10-15 | 2021-01-15 | 南京工业职业技术大学 | Hand-pressing type socket wrench |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722497A (en) * | 2019-11-18 | 2020-01-24 | 中核核电运行管理有限公司 | Torque wrench for limited space |
| CN110977853A (en) * | 2019-12-19 | 2020-04-10 | 四川大学 | Automatic electric control wrench for tightening bolt in narrow space |
| CN112223186A (en) * | 2020-10-15 | 2021-01-15 | 南京工业职业技术大学 | Hand-pressing type socket wrench |
| CN112223186B (en) * | 2020-10-15 | 2021-11-19 | 南京工业职业技术大学 | Hand-pressing type socket wrench |
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| CN110039477B (en) | 2023-12-15 |
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