CN107738217A - Combined sleeve - Google Patents
Combined sleeve Download PDFInfo
- Publication number
- CN107738217A CN107738217A CN201710956117.0A CN201710956117A CN107738217A CN 107738217 A CN107738217 A CN 107738217A CN 201710956117 A CN201710956117 A CN 201710956117A CN 107738217 A CN107738217 A CN 107738217A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- inner sleeve
- incline
- hole
- nut
- 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.)
- Granted
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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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- 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
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a kind of combined sleeve; aim to provide a kind of nut that can not only facilitate electric wrench to dismantle/lock different model; and incline outside the inner sleeve of the sleeve because being located at inner side in combined sleeve can be effectively improved and deformed upon; cause normally slide between sleeve, and influence combined sleeve can not normal use the problem of combined sleeve.It includes outer sleeve and the first inner sleeve, and the first end of the outer sleeve is provided with the first nut lock tieholen for being used for coordinating with nut, and the cross section of the first nut lock tieholen is in regular polygon；The outline of the cross section of first inner sleeve is also in regular polygon, and the first inner sleeve is plugged in the first nut lock tieholen and being capable of sliding axially along the first nut lock tieholen；In each lateral surface of first inner sleeve：Handing-over side between two adjacent lateral surfaces is defined as the outer incline of inner sleeve, and the outer incline of inner sleeve is provided with the incline deformation extended along incline direction outside inner sleeve and reserves holding tank.
Description
Technical field
The present invention relates to electric wrench field, and in particular to a kind of combined sleeve.
Background technology
Current electric wrench in operation process, nut for different model, it is necessary to change the sleeve of corresponding model,
So not only operation inconvenience, has an effect on operating efficiency.
Therefore, some inventors devise knockdown sleeve, by the sleeve combination of a variety of different size model numbers together,
The sleeve from-inner-to-outer of variant size model number is sequentially sleeved in together；Although such combined sleeve facilitates use, Ke Yiti
High operating efficiency；But it has the following disadvantages：
Due to certain gap between each sleeve in combined sleeve inevitably be present, so it is being located at inner side using a certain
Sleeve come lock/dismantle nut during（Illustrated by using exemplified by the most sleeve of inner side）：Sleeve it is each outer
In side：Handing-over side between two adjacent lateral surfaces is defined as the outer incline of inner sleeve, positioned at most inner side sleeve locking/
During dismantling nut, most outside the inner sleeve of the sleeve of inner side on the medial surface for the sleeve that incline will be against adjacent outer, come
Transmit the coupling mechanism force that electric wrench is acted on nut；Shape easily occurs for the outer incline of inner sleeve so positioned at the most sleeve of inner side
Become；And because the gap between each sleeve is inherently smaller, once positioned at most incline occurs outside the inner sleeve of the sleeve of inner side
Deformation, then it can slide between the most sleeve of inner side and the sleeve of adjacent outer, can thus influence positioned at most
The normal use of a sleeve on the outside of inner barrel, even result in the problem of sleeve can not be used for locking nut.
Similarly, it is located at the sleeve of inner side using any one above mentioned problem all be present during locking/dismantling nut.
The content of the invention
The invention aims to provide a kind of combined sleeve, it can not only facilitate electric wrench dismounting/locking not
With the nut of model, and incline outside the inner sleeve of the sleeve because being located at inner side in combined sleeve can be effectively improved shape occurs
Become, cause normally slide between sleeve, and influence combined sleeve can not normal use the problem of.
The technical scheme is that：
A kind of combined sleeve, including：Outer sleeve and the first inner sleeve, the first end of the outer sleeve, which is provided with, to be used to coordinate with nut
The first nut lock tieholen, the cross section of the first nut lock tieholen is in regular polygon；Outside the cross section of first inner sleeve
Profile is also in regular polygon, and the first inner sleeve is plugged in the first nut lock tieholen and can be along the axle of the first nut lock tieholen
To slip；In each lateral surface of first inner sleeve：Handing-over side between two adjacent lateral surfaces is defined as outside inner sleeve
Incline, inner sleeve are provided with incline deformation outside and reserve holding tank at incline.
By being provided with the outside of inner sleeve at rib, the incline deformation extended along incline direction outside inner sleeve is reserved to be held this programme
Receive groove, so during locking nut is carried out using the first inner sleeve, six lateral surfaces of the first inner sleeve will pass through incline
The open side edges that holding tank is reserved in deformation are against on the medial surface of outer sleeve, to transmit the locking that electric wrench is acted on nut
Power, in this way, the deformation at the outer incline of the inner sleeve of the first inner sleeve will occur in incline deformation and reserve in the opening of holding tank, lead to
Cross incline deformation and reserve holding tank to accommodate deformation caused by the lateral surface of the first inner sleeve, can thus avoid because of first
Inner sleeve deforms upon, and causes normally slide between sleeve, and influence combined sleeve can not normal use the problem of.
Meanwhile holding tank is reserved being provided with the outside of inner sleeve on rib along the incline deformation of incline direction extension outside inner sleeve,
The normal use of outer sleeve and the first inner sleeve is not interfered with.
Preferably, also include some side wall deformation prosthetic devices being arranged on outer sleeve, side wall deformation prosthetic device
Corresponded with incline outside inner sleeve, in each lateral surface of the outer sleeve：Determine on handing-over side between two adjacent lateral surfaces
Justice is the outer incline of outer sleeve；The side wall deformation prosthetic device includes being arranged on outer sleeve and through the interior lateral surface of outer sleeve
Guide through hole, the reparation blade that is slidably arranged in guide through hole and for drive repair blade slide along guide through hole it is inclined
Heart drive mechanism, the eccentric drive mechanism include being arranged on the eccentric wheel receiving hole repaired on blade, are arranged on outer sleeve
The axis hole that is connected on the end face of first end and with corresponding guide through hole, the driving axostylus axostyle being rotatably arranged in axis hole and setting
Eccentric drive wheel on driving axostylus axostyle and in eccentric wheel receiving hole, axis and the outer incline of outer sleeve of the driving axostylus axostyle
It is parallel.
When the edge of opening that holding tank is reserved in incline deformation deforms upon, although can be accommodated by the way that incline deformation is reserved
Groove joins caused deformation at side to accommodate the lateral surface of the first inner sleeve, but the deformation for still having part sometimes occurs
On the lateral surface of the first inner sleeve, formed on the lateral surface of the first inner sleeve that holding tank is reserved close to incline deformation and do not advised
Protrusion then, cause the first inner sleeve to be difficult to sliding axially along the first nut lock tieholen, influence the normal use of outer sleeve.
In order to solve the above problems, further avoid because deformation causes the first inner sleeve to be difficult to along the first nut lock tieholen
The problem of sliding axially, and influenceing the normal use of outer sleeve, this programme are provided with side wall deformation prosthetic device on outer sleeve,
When forming irregular protrusion on the lateral surface of the first inner sleeve, the first inner sleeve is caused to be difficult to the axle along the first nut lock tieholen
To slip, when influenceing the normal use of outer sleeve：The lateral surface of the first inner sleeve can be entered by side wall deformation prosthetic device
Row is repaired, and ensures that the first inner sleeve being capable of sliding axially along the first nut lock tieholen.
Preferably, repairing, blade is parallel with the end face of the first end of outer sleeve, and reparation blade is provided with toward sunken inside
V-arrangement cutting edge, when V-arrangement cutting edge is against on the lateral surface of the first inner sleeve：One side of V-arrangement cutting edge is fitted in the first inner sleeve
On one lateral surface of cylinder, another side of V-arrangement cutting edge is fitted on another lateral surface of the first inner sleeve, and incline deformation is reserved
Holding tank is located in corresponding V-arrangement cutting edge.The reparation blade of this programme is capable of the first of the reserved holding tank both sides of offside prismatic change
The inwall of nut lock tieholen is repaired, and improves remediation efficiency.
Preferably, the outside of the first end on driving axostylus axostyle and positioned at outer sleeve is provided with knob.
Preferably, the medial surface of the first nut lock tieholen is provided with the stopper slot extended along incline direction outside outer sleeve,
The limited post being engaged on the lateral surface of first inner sleeve with stopper slot.
Preferably, it is defined as towards the end face of the first inner sleeve of the bottom surface of the first nut lock tieholen in the first inner sleeve
End face, the other end of the first inner sleeve are defined as the first inner sleeve outer face；Limit close to the bottom surface of the first nut lock tieholen
One end of position groove is defined as stopper slot the inner, and the other end of stopper slot is defined as stopper slot outer end；When limited post is against stopper slot
During outer end：The guide through hole is close to the first inner sleeve inner face.
Preferably, eccentric wheel receiving hole is rectangular opening, the long side of eccentric wheel receiving hole and the corresponding shifting for repairing blade
Dynamic direction is perpendicular, and the broadside of eccentric wheel receiving hole is parallel with the moving direction of corresponding reparation blade.
Preferably, the second end of outer sleeve is provided with the spanner spliced eye with coordinating for electric wrench.
Preferably, the chip-removal hole of spanner spliced eye and the first nut lock tieholen is communicated with outer sleeve.
The beneficial effects of the invention are as follows：Electric wrench can be not only facilitated to dismantle/lock the nut of different model, Er Qieke
Deformed upon with being effectively improved incline outside the inner sleeve of the sleeve because being located at inner side in combined sleeve, causing can not be just between sleeve
Often slide, and influence combined sleeve can not normal use the problem of.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the combined sleeve of the present invention.
Fig. 2 is a kind of cross-sectional view at A-A in Fig. 1.
Fig. 3 is the partial enlarged drawing at B in Fig. 1.
In figure：
Outer sleeve 1, spanner spliced eye 1.1, chip-removal hole 1.2, the first nut lock tieholen 1.3, stopper slot 1.4；
First inner sleeve 2, limited post 2.1；
Holding tank 3 is reserved in incline deformation；
Side wall deformation prosthetic device 4, knob 4.0, guide through hole 4.1, repair blade 4.2, eccentric wheel receiving hole 4.3, drive shaft
Bar 4.4, eccentric drive wheel 4.5, V-arrangement cutting edge 4.6.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
As shown in Figure 1 and Figure 2, a kind of combined sleeve, including outer sleeve 1, the first inner sleeve 2 and some be arranged on outer sleeve
Side wall deformation prosthetic device 4.
The outline of the cross section of outer sleeve is in regular hexagon.In each lateral surface of outer sleeve：Two adjacent lateral surfaces
Between handing-over side be defined as the outer incline of outer sleeve.The first end of outer sleeve is provided with the first nut check for being used for coordinating with nut
Hole 1.3, the second end of outer sleeve are provided with the spanner spliced eye 1.1 with coordinating for electric wrench.It is communicated with pulling in outer sleeve
The chip-removal hole 1.2 of hand spliced eye and the first nut lock tieholen.The cross section of first nut lock tieholen is in regular hexagon.First nut
The medial surface of locking hole is provided with the stopper slot 1.4 extended along incline direction outside outer sleeve.Close to the bottom of the first nut lock tieholen
One end of the stopper slot in face is defined as stopper slot the inner, and the other end of stopper slot is defined as stopper slot outer end.
The outline of the cross section of first inner sleeve is also in regular hexagon, and the first inner sleeve is plugged in the first nut check
And being capable of sliding axially along the first nut lock tieholen in hole.What is be engaged on the lateral surface of first inner sleeve with stopper slot is spacing
Post 2.1.The first inner sleeve inner face is defined as towards the end face of the first inner sleeve of the bottom surface of the first nut lock tieholen, in first
The other end of sleeve is defined as the first inner sleeve outer face.
As shown in Figure 1, Figure 2, Figure 3 shows, in each lateral surface of the first inner sleeve：Handing-over side between two adjacent lateral surfaces
It is defined as the outer incline of inner sleeve.Incline deformation, which is provided with, at the outer incline of inner sleeve reserves holding tank 3.Holding tank edge is reserved in incline deformation
The outer incline direction extension of inner sleeve.Incline deformation is reserved holding tank and is connected with the both ends of the surface of the first inner sleeve.
Side wall deformation prosthetic device corresponds with the outer incline of inner sleeve.Side wall deformation prosthetic device includes being arranged on overcoat
On cylinder and run through the guide through hole 4.1 of the interior lateral surface of outer sleeve, the reparation blade 4.2 being slidably arranged in guide through hole and use
In the eccentric drive mechanism for driving reparation blade to be slided along guide through hole.
As shown in Fig. 2 when limited post is against stopper slot outer end：Guide through hole is close to the first inner sleeve inner face.
As shown in Figure 1, Figure 3, eccentric drive mechanism includes being arranged on the eccentric wheel receiving hole 4.3 repaired on blade, set
The axis hole being connected on the end face of the first end of outer sleeve and with corresponding guide through hole, the driving being rotatably arranged in axis hole
Axostylus axostyle 4.4 and it is arranged on driving axostylus axostyle and the eccentric drive wheel 4.5 in the eccentric wheel receiving hole.Eccentric wheel receiving hole is square
Shape hole.The long side of eccentric wheel receiving hole and it is corresponding repair blade moving direction it is perpendicular, the broadside of eccentric wheel receiving hole with
The moving direction of corresponding reparation blade is parallel.
Drive the axis of axostylus axostyle parallel with the outer incline of outer sleeve.Drive on axostylus axostyle and be located at the outer of the first end of outer sleeve
Side is provided with knob 4.0.The knob of the present embodiment is interior hexagonal (hexagon)nut.
As shown in Figure 1, Figure 2, Figure 3 shows, it is parallel with the end face of the first end of outer sleeve to repair blade.Blade is repaired to be provided with
Toward the V-arrangement cutting edge 4.6 of sunken inside.Two sides of V-arrangement cutting edge are symmetrical.When V-arrangement cutting edge is against the outside of the first inner sleeve
When on face：One side of V-arrangement cutting edge is fitted on a lateral surface of the first inner sleeve, and another side of V-arrangement cutting edge is fitted in
On another lateral surface of one inner sleeve, and incline deformation is reserved holding tank and is located in corresponding V-arrangement cutting edge.
The combined sleeve of the present embodiment it is specifically used as follows：
When nut matches with the first inner sleeve, the first inner sleeve alignment nut is inserted in by operator's hand electric spanner, then
Can lock/dismantle nut；
When nut matches with outer sleeve, outer sleeve alignment nut is inserted in by operator's hand electric spanner, now the first inner sleeve
Cylinder can be withstood by nut and push away inside, so that outer inner sleeve is inserted in nut, then can lock/dismantle nut.
In this way, in electric wrench operation process, it is possible to the number for changing sleeve is effectively reduced, so as to facilitate electronic pull
The nut of different model is dismantled/locked to hand.
During locking nut is carried out using the first inner sleeve, six lateral surfaces of the first inner sleeve will pass through incline shape
The open side edges for becoming reserved holding tank are against on the medial surface of outer sleeve, to transmit the locking that electric wrench is acted on nut
Power, in this way, the deformation at the outer incline of the inner sleeve of the first inner sleeve will occur in incline deformation and reserve in the opening of holding tank, lead to
Cross incline deformation and reserve holding tank to accommodate deformation caused by the lateral surface of the first inner sleeve, can thus avoid because of first
Inner sleeve deforms upon, and causes normally slide between sleeve, and influence combined sleeve can not normal use the problem of.
Further, if during locking nut is carried out using the first inner sleeve, reserve and accommodate close to incline deformation
Irregular protrusion is formed on the lateral surface of first inner sleeve of groove, causes the first inner sleeve to be difficult to along the first nut lock tieholen
Slide axially, when influenceing the normal use of outer sleeve：
First, the first inner sleeve is removed outward, untill limited post is against stopper slot outer end, now, guide through hole is close
First inner sleeve inner face, and blade is repaired close to the first inner sleeve inner face；
Then, by knob drive driving axostylus axostyle and eccentric drive wheel rotate, and then drive repair blade along guide through hole inside
It is mobile, the V-arrangement cutting edge of reparation blade is against on the lateral surface of the first inner sleeve；When V-arrangement cutting edge is against the outer of the first inner sleeve
When on side：One side of V-arrangement cutting edge is fitted in a lateral surface of the first inner sleeve, and another side of V-arrangement cutting edge is fitted in
Another lateral surface of one inner sleeve, and incline deformation is reserved holding tank and is located in corresponding V-arrangement cutting edge；
Followed by inserting in the first inner sleeve and be against on the endoporus bottom surface of the first inner sleeve by push rod, then pass through
Hammer taps, and the first inner sleeve is moved toward the bottom surface of the first nut lock tieholen, until the first inner sleeve is against the first nut lock
Untill on the bottom surface of tieholen, in this process, the V-arrangement cutting edge for repairing blade will be close to holding tank is reserved in incline deformation first
The irregular protrusion excision formed on the lateral surface of inner sleeve, repairs to the lateral surface of the first inner sleeve, ensures in first
Sleeve being capable of sliding axially along the first nut lock tieholen.
Claims (9)
1. a kind of combined sleeve, it is characterized in that, including：Outer sleeve and the first inner sleeve, the first end of the outer sleeve, which is provided with, to be used
In the first nut lock tieholen coordinated with nut, the cross section of the first nut lock tieholen is in regular polygon；First inner sleeve
The outline of cross section be also in regular polygon, and the first inner sleeve is plugged in the first nut lock tieholen and can be along the first spiral shell
Female locking hole slides axially；
In each lateral surface of first inner sleeve：Handing-over side between two adjacent lateral surfaces is defined as on the outside of inner sleeve
Rib, holding tank is reserved in the incline deformation at incline to inner sleeve outside.
2. combined sleeve according to claim 1, it is characterized in that, in addition to some side wall deformation being arranged on outer sleeve
Prosthetic device, side wall deformation prosthetic device correspond with the outer incline of inner sleeve,
In each lateral surface of the outer sleeve：Handing-over side between two adjacent lateral surfaces is defined as the outer incline of outer sleeve；
The side wall deformation prosthetic device includes being arranged on guide through hole, the cunning of the interior lateral surface on outer sleeve and through outer sleeve
The dynamic reparation blade being arranged in guide through hole and the eccentric drive mechanism for driving reparation blade to be slided along guide through hole, institute
Stating eccentric drive mechanism includes being arranged on the end face of the eccentric wheel receiving hole repaired on blade, the first end for being arranged on outer sleeve
And the axis hole being connected with corresponding guide through hole, the driving axostylus axostyle that is rotatably arranged in axis hole and it is arranged on driving axostylus axostyle simultaneously
Eccentric drive wheel in eccentric wheel receiving hole, the axis of the driving axostylus axostyle are parallel with the outer incline of outer sleeve.
3. combined sleeve according to claim 2, it is characterized in that, the end face of the first end for repairing blade and outer sleeve
It is parallel, the V-arrangement cutting edge that blade is provided with past sunken inside is repaired, when V-arrangement cutting edge is against on the lateral surface of the first inner sleeve： V
One side of shape cutting edge is fitted on a lateral surface of the first inner sleeve, and another side of V-arrangement cutting edge is fitted in the first inner sleeve
Another lateral surface on, and incline deformation is reserved holding tank and is located in corresponding V-arrangement cutting edge.
4. combined sleeve according to claim 2, it is characterized in that, on the driving axostylus axostyle and positioned at the first end of outer sleeve
Outside be provided with knob.
5. combined sleeve according to claim 2, it is characterized in that, the medial surface of the first nut lock tieholen is provided with edge
The stopper slot of the outer incline direction extension of outer sleeve, the limited post being engaged with stopper slot on the lateral surface of first inner sleeve.
6. combined sleeve according to claim 5, it is characterized in that, towards the first inner sleeve of the bottom surface of the first nut lock tieholen
The end face of cylinder is defined as the first inner sleeve inner face, and the other end of the first inner sleeve is defined as the first inner sleeve outer face；
Stopper slot the inner, the other end definition of stopper slot are defined as close to one end of the stopper slot of the bottom surface of the first nut lock tieholen
For stopper slot outer end；
When limited post is against stopper slot outer end：The guide through hole is close to the first inner sleeve inner face.
7. combined sleeve according to claim 2, it is characterized in that, the eccentric wheel receiving hole is rectangular opening, and eccentric wheel holds
Receive hole long side and it is corresponding repair blade moving direction it is perpendicular, the broadside of eccentric wheel receiving hole and corresponding reparation blade
Moving direction it is parallel.
8. combined sleeve according to claim 1, it is characterized in that, the second end of the outer sleeve is provided with being pulled for electronic
The spanner spliced eye that hand coordinates.
9. combined sleeve according to claim 8, it is characterized in that, spanner spliced eye and are communicated with the outer sleeve
The chip-removal hole of one nut lock tieholen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956117.0A CN107738217B (en) | 2017-10-15 | 2017-10-15 | Combined sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710956117.0A CN107738217B (en) | 2017-10-15 | 2017-10-15 | Combined sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107738217A true CN107738217A (en) | 2018-02-27 |
| CN107738217B CN107738217B (en) | 2019-01-25 |
Family
ID=61237544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710956117.0A Active CN107738217B (en) | 2017-10-15 | 2017-10-15 | Combined sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107738217B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035192A (en) * | 1998-07-22 | 2000-02-02 | Ask Corp | Heat insulating device |
| CN101463851A (en) * | 2007-12-20 | 2009-06-24 | 史丹利七和国际股份有限公司 | Telescopic connection rod |
| CN101905452A (en) * | 2009-06-02 | 2010-12-08 | 鸿富锦精密工业（深圳）有限公司 | Sleeve driver |
| TW201103710A (en) * | 2009-07-29 | 2011-02-01 | Hon Hai Prec Ind Co Ltd | Device for automatically locking screws |
| CN202934512U (en) * | 2012-11-30 | 2013-05-15 | 京东方科技集团股份有限公司 | Screw supporting structure and screw installing device |
| CN103192365A (en) * | 2013-03-28 | 2013-07-10 | 燕山大学 | Metamorphic wall-climbing parallel robot |
| CN203460104U (en) * | 2013-09-23 | 2014-03-05 | 姚天文 | Electric wrench with movable telescopic hexangular cylinder head |
| CN207606749U (en) * | 2017-10-15 | 2018-07-13 | 张朝雄 | A kind of combined sleeve |
-
2017
- 2017-10-15 CN CN201710956117.0A patent/CN107738217B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000035192A (en) * | 1998-07-22 | 2000-02-02 | Ask Corp | Heat insulating device |
| CN101463851A (en) * | 2007-12-20 | 2009-06-24 | 史丹利七和国际股份有限公司 | Telescopic connection rod |
| CN101905452A (en) * | 2009-06-02 | 2010-12-08 | 鸿富锦精密工业（深圳）有限公司 | Sleeve driver |
| TW201103710A (en) * | 2009-07-29 | 2011-02-01 | Hon Hai Prec Ind Co Ltd | Device for automatically locking screws |
| CN202934512U (en) * | 2012-11-30 | 2013-05-15 | 京东方科技集团股份有限公司 | Screw supporting structure and screw installing device |
| CN103192365A (en) * | 2013-03-28 | 2013-07-10 | 燕山大学 | Metamorphic wall-climbing parallel robot |
| CN203460104U (en) * | 2013-09-23 | 2014-03-05 | 姚天文 | Electric wrench with movable telescopic hexangular cylinder head |
| CN207606749U (en) * | 2017-10-15 | 2018-07-13 | 张朝雄 | A kind of combined sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107738217B (en) | 2019-01-25 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181210 Address after: Room 407, 4th floor, No. 2 Xingye Street, 102600 Beijing Economic and Technological Development Zone Applicant after: BEIJING HANDWEI MECHANICS AND ELECTRONIC INDUSTRY CO., LTD. Address before: 311112 7 Jinting Road, Jinheng Road, Liangzhu Town, Hangzhou, Zhejiang 501 Applicant before: Feng Jianjuan |
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