CN107445123A - A kind of electric power first-aid lifting gear - Google Patents
A kind of electric power first-aid lifting gear Download PDFInfo
- Publication number
- CN107445123A CN107445123A CN201710179828.1A CN201710179828A CN107445123A CN 107445123 A CN107445123 A CN 107445123A CN 201710179828 A CN201710179828 A CN 201710179828A CN 107445123 A CN107445123 A CN 107445123A
- Authority
- CN
- China
- Prior art keywords
- landing platform
- slot
- sliding
- landing
- plate
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
A kind of electric power first-aid lifting gear,Including the bottom plate being fixedly mounted on bottom surface and the top plate being fixedly mounted on the brandreth of high-altitude,Two guide bars corresponding to left and right and the landing spiral shell shape bar between two guide bars are installed between bottom plate and top plate,Landing platform is installed on landing spiral shell shape bar,Guide hole is correspondingly arranged at left and right sides of landing platform,Guide hole is engaged with guide bar,Also sliding is provided with guiding set on guide bar,And guiding puts end face and is fixedly connected with landing platform lower surface,Wedge surface plate is also installed between guiding set front end and landing platform bottom,Translot and the vertical slot being connected with translot are provided with wedge surface plate,Sliding plate can be slippingly installed up and down in receiving chamber in landing platform,The slippage slot of front and rear extension is provided with guiding set,Sliding is provided with sliding rack in slippage slot,It is provided with sliding rack and permits the empty groove that guide bar penetrates,Empty groove aft bulkhead is arranged to circumferentia,And it is installed with annular in circumferentia and presses piece.
Description
Technical field
The present invention relates to electric power facility field, and in particular to a kind of electric power first-aid lifting gear.
Background technology
Electric power electrical apparatus application is very extensive, and the position that it is installed is also more, and some is arranged in indoor substation, this
Kind equipment is generally usually easy to maintenance need not be by landing facility, such as ladder, landing car etc, but the installation also having
Aloft, such as install on high-altitude brandreth out of doors, it is existing usually using some climbing works when needing aloft to repair
Tool, considerable risk is easily produced when people are in climbing, or climbed using ladder, but the generally fixed peace of electric power electrical apparatus
Need not be moved mounted in some end points, need ladder to drag storage away after maintenance finishes, and ladder lower end be can
Dynamic, if no one buttresses, easily slip, nor instrument is convenient for carrying, also have what is repaired using landing car, although
Landing car is easy to use, but is detrimental to control cost.
The content of the invention
It is an object of the invention to provide a kind of electric power first-aid lifting gear and its application method, prior art can be overcome
Drawbacks described above.
According to the present invention, a kind of electric power first-aid lifting gear, including the bottom plate being fixedly mounted on bottom surface and fixed installation
Top plate on the brandreth of high-altitude, two guide bars and position corresponding to left and right are installed between the bottom plate and top plate
Landing spiral shell shape bar between two guide bars, is provided with landing platform on the landing spiral shell shape bar, at left and right sides of the landing platform
Guide hole is correspondingly arranged on, the guide hole is engaged with the guide bar, and also sliding is provided with guiding set on the guide bar,
And the guiding puts end face and is fixedly connected with the landing platform lower surface, the guiding set front end and the landing platform bottom it
Between be also installed with wedge surface plate, translot and the vertical slot being connected with the translot, the landing are provided with the wedge surface plate
Sliding plate can be slippingly installed up and down in the receiving chamber in platform, be provided between the sliding plate and the bottom wall of the landing platform
Top pressure elastic component, the front end face of the sliding plate are provided with fluting, up and down middle-end of the fluting bottom surface in the landing platform
Place, and switchboard is provided with the fluting, the switchboard can be opened by hinge to receiving intracavitary, be set in the guiding set
The slippage slot of front and rear extension is equipped with, is slid in the slippage slot and sliding rack is installed, be provided with the sliding rack described in allowance
The empty groove that guide bar penetrates, the empty groove aft bulkhead is arranged to circumferentia, and is installed with annular in the circumferentia
Press piece, the first top pressure elastic component, the guiding are installed between the guiding set rear end and the slippage slot aft bulkhead
Set front end is installed with transverse arm, and the transverse arm ejection guiding covers and protruded into the translot, the sliding plate lower end
Vertical arm is installed with, the vertical arm lower end ejects the landing platform and protruded into the vertical slot, the landing platform aft bulkhead
In be also equipped with launching and recovering equipment, the rotary shaft upper end is extended upwards, and top is fixedly installed turning arm hand, passes through turning arm
The rotation of hand, rotary shaft can be rotated, and rotary shaft can drive whorl sleeve rotating, the turning arm is provided with hand
Anti- rubber sleeve device.
According to embodiment, the launching and recovering equipment includes the middle end slot being arranged in the landing platform aft bulkhead and positioned at described
Loading groove on the right side of middle end slot, the uppper perforating slot and lower perforating slot of intercommunication are provided between the loading groove on the right side of the middle end slot, it is described
The whorl sleeve pipe being connected with the landing spiral shell shape bar whorl is rotatably mounted with middle end slot, it is described to be fitted into groove and revolve
Rotary shaft is installed with turning, the first chain wheel and lower first chain wheel, institute are installed with the whorl sleeve pipe outer ring
State and the second chain wheel and lower second chain wheel are installed with rotary shaft, be separately installed with the uppper perforating slot and lower perforating slot
Upper reception and registration chain and lower reception and registration chain, the upper reception and registration chain is arranged on upper second chain wheel and upper first chain wheel, under described
Chain is passed on to be arranged on lower second chain wheel and lower first chain wheel.
Further technical scheme, the vertical arm lower end are provided with top pressure hypotenuse, the front arm be provided with it is described
What top pressure hypotenuse was engaged is abutted against by top pressure hypotenuse, the top pressure hypotenuse with described by top pressure hypotenuse.
Further technical scheme, the length of the slippage slot is more than the length of the sliding rack, so as to the sliding rack
Can the front and rear sliding in the slippage slot.
Further technical scheme, the length of the empty groove are more than the diameter of the guide bar, so as to make described lead
Draw bar front and rear sliding in the empty groove.
Further technical scheme, the anti-rubber sleeve device includes draw ring and anti-rubber sleeve set, the draw ring are fixedly installed on
On hand, the anti-rubber sleeve is set in the turning arm on hand to the turning arm, and the anti-rubber sleeve, which puts to be provided with, permits the drawing
The groove of ring break-through, before rotating turning arm hand, by draw ring described in hand break-through and it is held in the anti-rubber sleeve and puts.
The beneficial effect of apparatus of the present invention is：
1. due to left and right two guide bars being correspondingly arranged and the landing spiral shell shape bar being arranged between two guide bars, can make to lead
Draw the friction force equalization between hole and guide bar, so as to make landing platform stably lift；
2. guiding is arranged on landing platform lower end, wedge surface plate is also installed between guiding set front end and the landing platform bottom,
Wedge surface plate can increase the stability of the landing platform；
3. in original state, annular is pressed piece and is tightly bonded with guide bar, therefore described rise can be reduced when landing platform is static
Platform drops because the factor of deadweight is on influence caused by the whorl of the landing spiral shell shape bar and the whorl sleeve pipe, so as to have
Effect protects the whorl of landing spiral shell shape bar and the whorl sleeve pipe；
4. annular, which presses piece, is set to arc shape, it is possible to increase the contact area with guide bar, so as to increase frictional force；
5. due to the auto-lock function of whorl, it can keep stable when landing platform is elevated to some height, so as to convenient to equipment
Maintenance and maintenance；
6. apparatus of the present invention landing platform are adjusted height using turning arm hand, the dependence to electric power on the one hand can be avoided,
Avoid on the other hand the lifting of landing platform being also convenient for landing platform regulation arriving required height in unexpected power-off, from
Control property is strong；
7. during landing platform lifts, staff can stand in chamber is received, therefore greatly reduce potential safety hazard,
Carried moreover, the tool implement of the maintenance or maintenance needed for staff is also disposed in receiving chamber, therefore, also significantly
Facilitate the carrying of tool implement.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of inventive embodiments or technical scheme of the prior art
The required accompanying drawing used is briefly described in technology description, it should be apparent that, drawings in the following description are only to invent
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is a kind of overall structure diagram of electric power first-aid lifting gear of the present invention；
Fig. 2 is the structural representation of the direction of arrow in Fig. 1；
Fig. 3 is the structural representation of the direction of arrow in Fig. 2；
Fig. 4 is the structural representation that Fig. 3 directions of arrow remove wedge surface plate；
Fig. 5 is the structural representation when switchboard is opened in the present invention；
Fig. 6 is the enlarged diagram of turning arm hand.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically chatting
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
As shown in figures 1 to 6, a kind of electric power first-aid lifting gear of the invention, including the bottom plate 10 being fixedly mounted on bottom surface
With the top plate 11 being fixedly mounted on the brandreth of high-altitude, it is installed between the bottom plate 10 and top plate 11 corresponding to left and right
Two guide bars 12 and the landing spiral shell shape bar 4 between two guide bars 12, landing is installed on the landing spiral shell shape bar 4
Platform 2, the left and right sides of landing platform 2 are correspondingly arranged on guide hole, and the guide hole is engaged with the guide bar 12, described to lead
Draw also to slide on bar 12 and guiding set 8 is installed, and 8 upper surfaces of guiding set are fixedly connected with the lower surface of landing platform 2, institute
State and be also installed with wedge surface plate 24 between guiding 8 front ends of set and the bottom of landing platform 2, horizontal stroke is provided with the wedge surface plate 24
Groove and the vertical slot 240 being connected with the translot, sliding can be slippingly installed up and down in the receiving chamber 20 in the landing platform 2
Top pressure elastic component 22, the front end of the sliding plate 21 are installed between the bottom wall of plate 21, the sliding plate 21 and the landing platform 2
Face is provided with fluting 27, and 27 bottom surfaces of the fluting are in the landing platform 2 up and down at middle-end, and be provided with out in the fluting
Plate 28 is closed, the switchboard 28 can be opened by hinge 26 into receiving chamber 20, described so as to facilitate worker to pass in and out receiving chamber 20
The slippage slot 241 of front and rear extension is provided with guiding set 8, is slid in the slippage slot 241 and sliding rack 3, the sliding is installed
It is provided with frame 3 and permits the empty groove 30 that the guide bar 12 penetrates, the empty aft bulkhead of groove 30 is arranged to circumferentia, and institute
State and annular is installed with circumferentia presses piece 33, it is fixed between guiding 8 rear ends of set and the aft bulkhead of the slippage slot 241
First top pressure elastic component 32 is installed, 8 front ends of guiding set are installed with transverse arm 31, and the transverse arm 31 ejects the guiding
Set 8 is simultaneously protruded into the translot, and the lower end of sliding plate 21 is installed with vertical arm 23, described in the lower end of vertical arm 23 ejection
Landing platform 2 is simultaneously protruded into the vertical slot 240, and launching and recovering equipment, the rotary shaft 42 are also equipped with the aft bulkhead of landing platform 2
Upper end is extended upwards, and top is fixedly installed turning arm hand 421, by the rotation of turning arm hand 421, can send out rotary shaft 42
Raw rotation, and rotary shaft 42 can drive the whorl sleeve pipe 41 to rotate, and anti-rubber sleeve dress is provided with the turning arm hand 421
Put.
Valuably, the launching and recovering equipment includes the middle end slot 200 being arranged in the aft bulkhead of landing platform 2 and positioned at described
The loading groove 201 on the right side of middle end slot 200, be provided between the loadings groove 201 on the middle right side of end slot 200 uppper perforating slot of intercommunication with
Lower perforating slot, the whorl sleeve pipe being connected with the whorl of landing spiral shell shape bar 4 is rotatably mounted with the middle end slot 200
41, it is described be fitted into groove 201 be rotatably mounted with rotary shaft 42, is installed with the outer ring of whorl sleeve pipe 41
One chain wheel 5 and lower first chain wheel 50, the second chain wheel 53 and lower second chain are installed with the rotary shaft 42
54 are taken turns, is separately installed with the uppper perforating slot and lower perforating slot and passes on chain 51 and lower reception and registration chain 52, the upper reception and registration chain 51 is installed
On described on second chain wheel 51 and upper first chain wheel 5, the lower reception and registration chain 52 is arranged on lower second chain wheel 52 with
On first chain wheel 50.
Valuably, the lower end of vertical arm 23 is provided with top pressure hypotenuse 231, and the front end of transverse arm 31 is provided with and the top pressure
What hypotenuse 231 was engaged is abutted against by top pressure hypotenuse 311, the top pressure hypotenuse 231 with described by top pressure hypotenuse 311, so that
When the vertical arm 23 is depressed, the top pressure hypotenuse 231 may act on described by top pressure hypotenuse 311, therefore can make sliding rack 3 backward
End sliding, and annular is pressed piece 33 and departed from the guide bar 12, is lifted so as to permit the landing platform 2.
Valuably, the length of the slippage slot 241 is more than the length of the sliding rack 3, so as to which the sliding rack 3 can be in institute
State front and rear sliding in slippage slot 241.
Valuably, the length of the empty groove 30 is more than the diameter of the guide bar 12, so as to make the guide bar 12
The front and rear sliding in the empty groove 30, it is bonded and departs from the guide bar 12 so as to make annular press piece 33.
Valuably, the anti-rubber sleeve device includes draw ring 422 and anti-rubber sleeve set 423, and the draw ring 422 is fixedly installed on institute
State on turning arm hand 421, the anti-rubber sleeve set 423 is located on the turning arm hand 421, is provided with the anti-rubber sleeve set 423
Permit the groove of the break-through of draw ring 422, before rotating turning arm hand 421, by draw ring 422 described in hand break-through and be held in the anti-rubber sleeve
On set 423.
During original state, in the presence of the top pressure elastic component 22, the sliding plate 21 by top pressure in upper position, by
It is fixedly connected in the vertical arm 23 with the sliding plate 21, therefore, the vertical arm 23 is also in upper position, described
In the presence of one top pressure elastic component 32, the sliding rack 3 is biased to position forward, due to the transverse arm 31 and the sliding
Frame 3 is fixedly connected, and therefore, the transverse arm 31 is also at preceding position, and now, the not described transverse arm of vertical arm 23
31, therefore the annular is pressed piece 33 and is tightly bonded with the guide bar 12.
When needing repairing, when related personnel station is in the receiving chamber 20 of the landing platform 2, the sliding plate 21 can be stepped on
Under, and moving down for the sliding plate 21 can drive the vertical arm 23 to move down, and the moving down of the vertical arm 23 can make described
Top pressure hypotenuse 231 act on it is described promote the transverse arm 31 to slide backward by top pressure hypotenuse 311, and the transverse arm 31 can drive
The sliding rack 3 slides backward, departs from the guide bar 12 so as to which the annular can be made to press piece 33, permits the landing platform
2 are lifted, and now, are rotated the turning arm hand 421, can be rotated the rotary shaft 42, and chain is passed on described
51 cooperations with upper second chain wheel 51 and upper first chain wheel 5 and the lower reception and registration chain 52 and lower second chain
The cooperation of wheel 52 and lower first chain wheel 50, the rotary shaft 42 can drive the whorl sleeve pipe 41 to rotate, and due to described
Landing spiral shell shape bar 4 is fixed, and thus, the whorl sleeve pipe 41 can rotate against with the landing spiral shell shape bar 4,
So as to make the landing platform 2 rise to required height, so as to be overhauled, safeguarded to the equipment of eminence, and in maintenance, dimension
The turning arm hand 421 is reversely rotated after shield is good, landing platform can be made slowly descending.
Due to left and right two guide bars being correspondingly arranged and the landing spiral shell shape bar being arranged between two guide bars, can make
Friction force equalization between guide hole and guide bar, so as to make landing platform stably lift；And guide and be arranged under landing platform
End, wedge surface plate is also installed between guiding set front end and the landing platform bottom, wedge surface plate can increase the landing platform
Stability；In original state, annular is pressed piece and is tightly bonded with guide bar, therefore described rise can be reduced when landing platform is static
Platform drops because the factor of deadweight is on influence caused by the whorl of the landing spiral shell shape bar and the whorl sleeve pipe, so as to have
Effect protects the whorl of landing spiral shell shape bar and the whorl sleeve pipe；Annular presses piece and is set to arc shape, it is possible to increase with leading
Draw the contact area of bar, so as to increase frictional force；Due to the auto-lock function of whorl, some height can be elevated in landing platform
When keep stable, so as to convenient maintenance and maintenance to equipment；Apparatus of the present invention are adjusted using turning arm hand to landing platform
Section height, on the one hand can avoid the dependence to electric power, and avoiding can not be to the lifting of landing platform, on the other hand in unexpected power-off
Convenient that the regulation of landing platform is arrived into required height, automatic control is strong；During landing platform lifts, staff, which can stand, to be held
Put in chamber, therefore greatly reduce potential safety hazard, moreover, the tool implement of the maintenance or maintenance needed for staff is also placed
Carried in chamber is received, therefore, also greatly facilitate the carrying of tool implement.
Embodiment described above, only inventing, but invent protection domain be not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should all be covered within the protection domain of invention.Therefore, the protection domain of invention
It should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of electric power first-aid lifting gear, including the bottom plate being fixedly mounted on bottom surface and it is fixedly mounted on the brandreth of high-altitude
Top plate, it is characterised in that：Two guide bars corresponding to left and right are installed between bottom plate and top plate and positioned at two
Landing spiral shell shape bar between guide bar, landing platform is installed on landing spiral shell shape bar, guiding is correspondingly arranged at left and right sides of landing platform
Hole, guide hole are engaged with guide bar, and also sliding is provided with guiding set on guide bar, and guiding puts end face and landing platform lower end
Face is fixedly connected, guiding set front end and landing platform bottom between is also installed with wedge surface plate, be provided with wedge surface plate translot and
The vertical slot being connected with translot, sliding plate, sliding plate and landing platform can be slippingly installed up and down in the receiving chamber in landing platform
Bottom wall between top pressure elastic component is installed, the front end face of sliding plate is provided with fluting, fluting bottom surface landing platform up and down
At middle-end, and switchboard is provided with slotting, switchboard can be opened by hinge to receiving intracavitary, is provided with guiding set front and rear
The slippage slot of extension, in slippage slot sliding sliding rack is installed, be provided with sliding rack and permit the empty groove that guide bar penetrates, it is empty
Hole groove aft bulkhead is arranged to circumferentia, and annular is installed with circumferentia and presses piece, guiding set rear end and slippage slot rear end
The first top pressure elastic component is installed between wall, guiding set front end is installed with transverse arm, and transverse arm ejection guiding covers and put in
Into translot, sliding plate lower end is installed with vertical arm, and vertical arm lower end ejection landing platform is simultaneously protruded into vertical slot, landing platform rear end
Launching and recovering equipment is also equipped with wall, the rotary shaft upper end is extended upwards, and top is fixedly installed turning arm hand, the rotation
Arm is provided with anti-rubber sleeve device on hand.
2. electric power first-aid lifting gear as claimed in claim 1, it is characterised in that：The launching and recovering equipment is described including being arranged on
Middle end slot in landing platform aft bulkhead and the loading groove on the right side of the middle end slot, between the loading groove on the right side of the middle end slot
The uppper perforating slot and lower perforating slot of intercommunication are provided with, is rotatably mounted with the middle end slot and connects with the landing spiral shell shape bar whorl
The whorl sleeve pipe connect, it is described be fitted into groove be rotatably mounted with rotary shaft, be fixedly mounted on the whorl sleeve pipe outer ring
There are upper first chain wheel and lower first chain wheel, the second chain wheel and lower second chain are installed with the rotary shaft
Take turns, be separately installed with the uppper perforating slot and lower perforating slot and pass on chain and lower reception and registration chain, the upper reception and registration chain is arranged on described
On second chain wheel and upper first chain wheel, the lower reception and registration chain is arranged on lower second chain wheel and lower first chain wheel.
3. electric power first-aid lifting gear as claimed in claim 1, it is characterised in that：It is oblique that the vertical arm lower end is provided with top pressure
Side, the front arm are provided with being pushed up by top pressure hypotenuse, the top pressure hypotenuse with described of being engaged with the top pressure hypotenuse
Pressure hypotenuse abuts against.
4. electric power first-aid lifting gear as claimed in claim 1, it is characterised in that：The length of the slippage slot is more than the cunning
The length of frame is moved, so as to which the sliding rack can the front and rear sliding in the slippage slot.
5. electric power first-aid lifting gear as claimed in claim 1, it is characterised in that：The length of the empty groove is more than described lead
Draw the diameter of bar, so as to make the guide bar front and rear sliding in the empty groove.
6. electric power first-aid lifting gear as claimed in claim 1, it is characterised in that：The anti-rubber sleeve device includes draw ring and prevented
Rubber sleeve set, the draw ring are fixedly installed on the turning arm on hand, and the anti-rubber sleeve is set in the turning arm on hand, described anti-
Rubber sleeve puts the groove for being provided with and permitting the draw ring break-through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179828.1A CN107445123A (en) | 2017-03-23 | 2017-03-23 | A kind of electric power first-aid lifting gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179828.1A CN107445123A (en) | 2017-03-23 | 2017-03-23 | A kind of electric power first-aid lifting gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107445123A true CN107445123A (en) | 2017-12-08 |
Family
ID=60486388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710179828.1A Pending CN107445123A (en) | 2017-03-23 | 2017-03-23 | A kind of electric power first-aid lifting gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107445123A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5217090A (en) * | 1991-01-29 | 1993-06-08 | Billington Welding & Manufacturing, Inc. | Vertically adjustable work station assembly |
| CN103786137A (en) * | 2013-12-31 | 2014-05-14 | 江苏南铸科技股份有限公司 | Lifting platform |
| CN105834799A (en) * | 2015-01-16 | 2016-08-10 | 四川航达机电技术开发服务中心 | Three-way clamping device |
-
2017
- 2017-03-23 CN CN201710179828.1A patent/CN107445123A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5217090A (en) * | 1991-01-29 | 1993-06-08 | Billington Welding & Manufacturing, Inc. | Vertically adjustable work station assembly |
| CN103786137A (en) * | 2013-12-31 | 2014-05-14 | 江苏南铸科技股份有限公司 | Lifting platform |
| CN105834799A (en) * | 2015-01-16 | 2016-08-10 | 四川航达机电技术开发服务中心 | Three-way clamping device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |
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| RJ01 | Rejection of invention patent application after publication |