CN105938768B - A kind of isolation linkage for blocking and reversing - Google Patents
A kind of isolation linkage for blocking and reversing Download PDFInfo
- Publication number
- CN105938768B CN105938768B CN201610429794.2A CN201610429794A CN105938768B CN 105938768 B CN105938768 B CN 105938768B CN 201610429794 A CN201610429794 A CN 201610429794A CN 105938768 B CN105938768 B CN 105938768B
- Authority
- CN
- China
- Prior art keywords
- shaft
- small
- big
- seat board
- hole
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The present invention provides a kind of isolation linkage for blocking and reversing, including：Quick operating valve, cabinet front plate, bumping post, break-make label, positioning bolt seat, positioning bolt, bolt assembly, isolation reversing switch, the quick operating valve and cabinet front plate have the through-hole concentric with positioning bolt, for positioning bolt precession and back-out；Rotating disk has the corresponding open slot with positioning bolt, in positioning bolt precession open slot, limits the rotation of rotating disk；Rotating disk has open slot corresponding with locating shaft, is passed in and out for locating shaft；The present invention realizes the energization and power-off of isolation reversing switch and omnipotent pole changer by the cooperation of the machine components such as size, shaft, locating shaft and positioning bolt; and the interlock of biswitch control is reached under off-position when ensureing that quick operating valve is opened; avoid the former simple measures that power-off protection is only realized to the limitation of isolation reversing switch and quick operating valve; the generation for having prevented accident, reduces security risk.
Description
Technical field
The present invention relates to interlock technical field, specially a kind of isolation linkage for blocking and reversing.
Background technology
Flameproof electrical apparatus is for containing explosive gas (methane blended in underground coal mine and other surrounding mediums
Object) environment in, when some fortuitous events of underground coal mine emergent management, even if simple operations all occur the possibility of maloperation,
Electric shock accidents occurs, or even causes gas and dust explosion accident, the equipment that when maloperation can cause the accident must have it is electrical and
The interlocking mechanism of machinery ensures that the interlock of operation order, especially flame-proof mine electrical equipment ensures master from structure
Door cannot be opened when ring current is connected, and main circuit power not can turn on after door is opened, the structure of interlock should ensure that it is non-specially
It cannot be released easily with tool.
Reversing switch and its limit shaft being used cooperatively only is isolated in common interlock, and control power-off is opened with door
It opens, but with the raising of underground coal mine the degree of automation, the function of the electrical equipment needed is more, it is in the urgent need to address more
Switch interlock associated with door realization.
Invention content
Technical problem solved by the invention is to provide a kind of isolation linkage for blocking and reversing, to solve above-mentioned background technology
The problem of middle proposition.
Technical problem solved by the invention is realized using following technical scheme：A kind of isolation linkage for blocking and reversing, packet
It includes：Quick operating valve, cabinet front plate, bumping post, break-make label, positioning bolt seat, positioning bolt, bolt assembly, isolation reversing switch, institute
Stating quick operating valve and cabinet front plate has the through-hole concentric with positioning bolt, for positioning bolt precession and back-out；Rotating disk has and positions
The corresponding open slot of bolt in positioning bolt precession open slot, limits the rotation of rotating disk；Rotating disk has and locating shaft
Corresponding open slot is passed in and out for locating shaft；Locating shaft and bearing are used cooperatively by the hole on bearing；Hand handle has for locating shaft
Precession and the cylindrical hole exited；Bumping post limits the direction of rotation of hand handle；Break-make label is the direction board of hand handle and rotating disk, hand handle
Action with rotating disk is executed by break-make label；Flameproof box side plate has the matched hole of roundlet outer diameter with set and small set greatly, greatly
The other side of set and small set has the shaft shoulder, the inner face of the shaft shoulder that can be bonded with Flameproof box side plate；Big set and small set have and big copper respectively
There is the shaft shoulder in the other side of the matched hole of roundlet outer diameter of set and small copper sheathing, big copper sheathing and small copper sheathing, and the inner face of the shaft shoulder can be big
Set and the fitting of small set；The optical axis of the big shaft and small shaft inner hole with big copper sheathing and small copper sheathing respectively, big shaft and small turn
The shaft shoulder inner face of axis is bonded respectively at the left side of big copper sheathing and small copper sheathing, and big copper sheathing and small copper sheathing supply big shaft and small turn
Axis rotates in its endoporus, and the seat board is by being fixedly welded on Flameproof box side plate, and seat board has and through-hole that seat board is isolated
Corresponding threaded hole is fixed on seat board by bolt assembly by seat board is isolated；Isolation seat board has opposite with isolation reversing switch
The connecting hole answered is fixed on isolation seat board by bolt assembly by reversing switch is isolated；Small seat board is by being fixedly welded on flame proof
Case side plate, and have threaded hole corresponding with the through-hole of omnipotent seat board on small seat board, omnipotent seat board is consolidated by screw assembly
Due to two small seat boards, omnipotent pole changer has identical through-hole with omnipotent seat board, by bolt assembly by omnipotent pole changer
It is fixed on omnipotent seat board.
Described big shaft one end has open slot to coordinate with the square shaft that reversing switch one end is isolated；The six of the big shaft other end
Square shaft coordinates with the hexagon slot in hand handle；There is threaded hole in the hexagon shaft end of big shaft, by screw assembly by big shaft
It is fixed on Flameproof box side plate with hand handle.
Described small shaft one end has open slot and the square shaft of omnipotent pole changer one end to coordinate；The other end six of small shaft
Square shaft coordinates with the hexagon slot in rotating disk；There is threaded hole in the hexagon shaft end of small shaft；By screw assembly by small turn
Axis and rotating disk are fixed on Flameproof box side plate.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention passes through size, shaft, locating shaft and positioning spiral shell
The cooperation of the machine components such as bolt realizes the energization and power-off of isolation reversing switch and omnipotent pole changer, and is ensureing quick operating valve
The interlock for having reached under off-position biswitch control when unlatching avoids former only to isolation reversing switch and fast
The limitation of enabling and the simple measures for realizing power-off protection, have prevented the generation of accident, have reduced security risk.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the internal structure schematic diagram of the present invention.
Specific implementation mode
In order to make implement technical means, creation characteristic, reached purpose and effect of the present invention be easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
As shown in Figure 1 and Figure 2, a kind of isolation linkage for blocking and reversing, including：Quick operating valve 1, cabinet front plate 2, bumping post 3, break-make
Label 4, positioning bolt seat 5, positioning bolt 6, bolt assembly 7, isolation reversing switch 8, the quick operating valve 1 and cabinet front plate 2 have
The concentric through-hole with positioning bolt 6, for 6 precession of positioning bolt and back-out；Rotating disk 24 has corresponding with positioning bolt 6
Open slot in 6 precession open slot of positioning bolt, can limit the rotation of rotating disk 24；Rotating disk 24 has opposite with locating shaft 18
The open slot answered passes in and out for locating shaft 18；Locating shaft 18 and bearing 19 are used cooperatively by the hole on bearing 19, limit its cross
To movement；Hand handle 17 has the cylindrical hole for locating shaft 18 precession and exiting；Bumping post 3 can limit the direction of rotation of hand handle 17；It is logical
Disconnected label 4 is the direction board of hand handle 17 and rotating disk 24, and the action of hand handle 17 and rotating disk 24 is executed by break-make label 4；Flame proof
Case side plate 12 has the matched hole of roundlet outer diameter with set 13 greatly and small set 20, the greatly other side of set 13 and small set 20 to have the shaft shoulder,
The inner face of the shaft shoulder can be bonded with Flameproof box side plate 12；Big set 13 and small set 20 have small with big copper sheathing 14 and small copper sheathing 21 respectively
The other side of the matched hole of circle outer diameter, big copper sheathing 14 and small copper sheathing 21 has the shaft shoulder, the inner face of the shaft shoulder that can cover 13 and small set greatly
20 fittings；The inner hole that the optical axis of shaft 15 and small shaft 22 can respectively with big copper sheathing 14 and small copper sheathing 21 greatly, big shaft 15
It is bonded respectively at the left side of big copper sheathing 14 and small copper sheathing 21 with the shaft shoulder inner face of small shaft 22, big copper sheathing 14 and small copper sheathing
21 rotate for big shaft 15 and small shaft 22 in its endoporus；Seat board 11 by being fixedly welded on Flameproof box side plate 12, and
Seat board 11 has threaded hole corresponding with the isolation through-hole of seat board 10, can be fixed on seat by seat board 10 is isolated by bolt assembly 9
Plate 11；Isolation seat board 10 has connecting hole corresponding with isolation reversing switch 8, reversing switch 8 can will be isolated by bolt assembly 7
It is fixed on isolation seat board 10；Small seat board 25 has by being fixedly welded on Flameproof box side plate 12, and on small seat board 25 and Universal seat
Omnipotent seat board 27 can be fixed on two small seat boards 25 by the corresponding threaded hole of through-hole of plate 27 by screw assembly 26, omnipotent
Pole changer 29 and omnipotent seat board 27, have the same through-hole, omnipotent pole changer 29 can be fixed on ten thousand by bolt assembly 28
It can seat board 27.
Described 15 one end of big shaft has open slot to coordinate with the square shaft that 8 one end of reversing switch is isolated；Big shaft 14 is another
The hexagon axis at end can coordinate with the hexagon slot in hand handle 17；There is threaded hole in the hexagon shaft end of big shaft 17, can pass through spiral shell
Big shaft 15 and hand handle 17 are fixed on Flameproof box side plate 12 by screw assembly 16.
Described 22 one end of small shaft has open slot and the square shaft of 29 one end of omnipotent pole changer to coordinate；Small shaft 22 it is another
One end hexagon axis can coordinate with the hexagon slot in rotating disk 24；There is threaded hole in the hexagon shaft end of small shaft 22；It can pass through
Small shaft 22 and rotating disk 24 are fixed on Flameproof box side plate 12 by screw assembly 23.
The other end of the big shaft 15 connected with reversing switch 8 is isolated is machined with hexagon axis in the present invention, with hand handle 17
Interior hexagonal hole cooperation, more easily realize big shaft 15 and hand handle 17 and isolation reversing switch 8 while rotate.It is different
Place 2 be the increase in omnipotent pole changer 29 control power-off failure type brake power on/off, 29 one end of omnipotent pole changer with
The limitation of 8 phase of reversing switch is isolated, the other end is mutually limited with quick operating valve, realizes Multi- Switch interlock.
When in use, the position for covering 13 greatly by shaft shoulder determination and Flameproof box side plate 12 in linkage for blocking and reversing, weldering is isolated
It is connected on Flameproof box side plate 12, large shaft sleeve 14 is connected with the endoporus of big set 13, and large shaft sleeve 14 is determined by the shaft shoulder of large shaft sleeve 14
Position, big shaft 15 pass through large shaft sleeve 14 to be fixed on Flameproof box side plate 12 by screw assembly 16 with hand handle 17.Seat board 11 welds
On the inner wall of Flameproof box side plate 12, isolation seat board 10 is fixed on by bolt assembly 9 on seat board 11, and isolation reversing switch 8 is logical
It crosses bolt assembly 7 to be fixed on isolation seat board 10, the square shaft of isolation reversing switch 8 is inserted in the open slot of 15 side of big shaft
It is interior, the break-make that isolation reversing switch 8 can be achieved is rotated by hand handle 17.It is true by the shaft shoulder that small set 20 in linkage for blocking and reversing is isolated
Fixed and Flameproof box side plate 12 position, is welded on Flameproof box side plate 12, and little axle sleeve 21 is connected with the endoporus of small set 20, by small axis
The shaft shoulder of set 21 determines that the position of little axle sleeve 21, small shaft 22 are fixed with rotating disk 24 by screw assembly 23 across little axle sleeve 21
In Flameproof box side plate 12.Small seat board 25 is welded on the inner wall of Flameproof box side plate 12, and omnipotent seat board 27 is solid by bolt assembly 26
Due on small seat board 25, omnipotent pole changer 29 is fixed on by bolt assembly 28 on omnipotent seat board 27, omnipotent pole changer 29
Square shaft be inserted in the open slot of 22 side of small shaft, the break-make of omnipotent pole changer 29 is realized by the rotation of rotating disk 24.
Bearing 19 is welded on the outside of Flameproof box side plate 12, and locating shaft 18 is across the hole of bearing 19 with hand handle 17 and rotating disk 24 at one
On vertical axis, for limiting the priority motion sequence of hand handle 17 and rotary shaft 24.Positioning bolt seat 5 is welded on rotating disk 24
Left side, 5 disposed thread of positioning bolt seat are connected with positioning bolt 6, positioning bolt 6 and rotating disk 24 and quick operating valve 1, cabinet front plate
On 2 Kong Yi horizontal axis, positioning bolt 6 is used for limiting the precedence of the action of quick operating valve 1 and rotating disk 24.Break-make
Label 4 is fixed on the side of bearing 19 by rivet, and 17 bottom right side of hand handle is welded with bumping post 3, limits the direction of rotation of hand handle 17.
The order of operation of energization is to ensure being closed completely for quick operating valve 1, so that positioning bolt 6 is screwed in soon using specific purpose tool
It opens the door in 1 hole, screws out the slot of rotating disk 24, rotate up rotating disk 24 counterclockwise according to the instruction of label 4, make omnipotent steering
Switch 29 is in energized state, locating shaft 18 is pulled down in the slot of the upper surface of rotating disk 24, to release the limit to hand handle 17
System, rotates up hand handle 17 according to the instruction of break-make label 4, isolation reversing switch 8 is made to be in energized state, i.e. flame proof counterclockwise
Type electrical equipment is in energized state.Down sequences are opposite with energization order.So only isolation reversing switch 8 and omnipotent steering
29 double door of switch is in the state of power-off, and quick operating valve could be opened.Not only realizing only specific purpose tool could release
Linkage for blocking and reversing is isolated, realizes power-off protection, maloperation when preventing from switching on-load ensure that the person of operation maintenance personal
Safety, and the realization of biswitch isolation linkage for blocking and reversing is realized, and by omnipotent pole changer 29 to powering off actual effect
The control of type brake realizes the band-type brake action of brake when power-off, realizes the duplicate protection to operating personnel at the first time.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed range of the present invention by appended claims and
Its equivalent thereof.
Claims (2)
1. a kind of isolation linkage for blocking and reversing, including：Quick operating valve, cabinet front plate, bumping post, break-make label, positioning bolt seat, positioning
Bolt, bolt assembly, isolation reversing switch, it is characterised in that：The quick operating valve and cabinet front plate have concentric with positioning bolt
Through-hole, for positioning bolt precession and back-out；Rotating disk have with the corresponding open slot of positioning bolt, when positioning bolt precession be open
In slot, the rotation of rotating disk is limited；Rotating disk has open slot corresponding with locating shaft, is passed in and out for locating shaft；Locating shaft and branch
Seat is used cooperatively by the hole on bearing；Hand handle has for locating shaft precession and the cylindrical hole exited；Bumping post limits the rotation of hand handle
Direction；Break-make label is the direction board of hand handle and rotating disk, and the action of hand handle and rotating disk is executed by break-make label；Flameproof box side
Plate has the side matched hole of roundlet outer diameter with set and small set greatly, the other side of big set and small set to have shaft shoulder I, and shaft shoulder I's is interior
End face is bonded with Flameproof box side plate；Big set and small set have matched with the side roundlet outer diameter of big copper sheathing and small copper sheathing respectively
The other side of hole, big copper sheathing and small copper sheathing has shaft shoulder II, the inner face of shaft shoulder II to be bonded with big set and small set；The optical axis of big shaft
With the inner hole of big copper sheathing, the inner hole of the optical axis of small shaft and small copper sheathing, shaft shoulder III inner faces and the big copper of big shaft
The left side of set is bonded, and the shaft shoulder III inner faces of small shaft are bonded with the left side of small copper sheathing, and big copper sheathing and small copper sheathing turn for big
Axis and small shaft rotate in its endoporus, and seat board is by being fixedly welded on Flameproof box side plate, and seat board has and seat board is isolated
The corresponding threaded hole of through-hole is fixed on seat board by bolt assembly by seat board is isolated；Isolation seat board has and reversing switch is isolated
Corresponding connecting hole is fixed on isolation seat board by bolt assembly by reversing switch is isolated；Small seat board is by being fixedly welded on
Flameproof box side plate, and have threaded hole corresponding with the through-hole of omnipotent seat board on small seat board, by screw assembly by Universal seat
Plate is fixed on two small seat boards, and omnipotent pole changer has identical through-hole with omnipotent seat board, by bolt assembly by omnipotent steering
Switch is fixed on omnipotent seat board；Described big shaft one end has open slot to coordinate with the square shaft that reversing switch one end is isolated；It is big to turn
The hexagon axis of the axis other end coordinates with the hexagon slot in hand handle；There is threaded hole in the hexagon shaft end of big shaft, passes through screw
Big shaft and hand handle are fixed on Flameproof box side plate by component.
2. a kind of isolation linkage for blocking and reversing according to claim 1, it is characterised in that：There is opening in described small shaft one end
Slot and the square shaft of omnipotent pole changer one end coordinate；The other end hexagon axis of small shaft is matched with the hexagon slot in rotating disk
It closes；There is threaded hole in the hexagon shaft end of small shaft；Small shaft and rotating disk are fixed on Flameproof box side plate by screw assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429794.2A CN105938768B (en) | 2016-06-15 | 2016-06-15 | A kind of isolation linkage for blocking and reversing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429794.2A CN105938768B (en) | 2016-06-15 | 2016-06-15 | A kind of isolation linkage for blocking and reversing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105938768A CN105938768A (en) | 2016-09-14 |
| CN105938768B true CN105938768B (en) | 2018-07-27 |
Family
ID=56872537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610429794.2A Active CN105938768B (en) | 2016-06-15 | 2016-06-15 | A kind of isolation linkage for blocking and reversing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105938768B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2895083A (en) * | 1955-02-24 | 1959-07-14 | Western Electric Co | Safety devices for electrical apparatus |
| CN202799478U (en) * | 2012-09-24 | 2013-03-13 | 沈阳隆基电磁科技股份有限公司 | Mine flame-proof type electric cabinet with outage opening interlocking device |
| CN203277141U (en) * | 2013-05-17 | 2013-11-06 | 江苏创导自动化设备有限公司 | Door open to power-off blocking device of composite mining flame-proof switch |
| CN205670511U (en) * | 2016-06-15 | 2016-11-02 | 凯盛重工有限公司 | A kind of isolation linkage for blocking and reversing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103366987B (en) * | 2013-07-15 | 2015-05-13 | 抚顺煤矿电机制造有限责任公司 | Anti-explosion intrinsically-safe electromotor mechanical locking and electric locking structure |
| CN203721535U (en) * | 2013-11-20 | 2014-07-16 | 济源市华宇矿业电器有限公司 | Safety interlocking device of quick door-opening type for mining alternating-current frequency converter |
| CN204117884U (en) * | 2014-07-03 | 2015-01-21 | 西安重装矿山电器设备有限公司 | A kind of mineral flame-proof type transducer door electric interlocking device |
| CN104779099B (en) * | 2015-04-13 | 2016-12-07 | 山西汾西机电有限公司 | The multiple electromechanical interlock mechanism of underground coal mine explosion-proof electrical appliance case |
| CN204927110U (en) * | 2015-08-28 | 2015-12-30 | 山东中联泵业有限公司 | Explosion -proof this ampere of type control box mechanical latching mechanism of holding concurrently |
| CN105513857A (en) * | 2015-11-19 | 2016-04-20 | 中煤张家口煤矿机械有限责任公司 | Scram button and disconnecting switch interlocking mechanism |
-
2016
- 2016-06-15 CN CN201610429794.2A patent/CN105938768B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2895083A (en) * | 1955-02-24 | 1959-07-14 | Western Electric Co | Safety devices for electrical apparatus |
| CN202799478U (en) * | 2012-09-24 | 2013-03-13 | 沈阳隆基电磁科技股份有限公司 | Mine flame-proof type electric cabinet with outage opening interlocking device |
| CN203277141U (en) * | 2013-05-17 | 2013-11-06 | 江苏创导自动化设备有限公司 | Door open to power-off blocking device of composite mining flame-proof switch |
| CN205670511U (en) * | 2016-06-15 | 2016-11-02 | 凯盛重工有限公司 | A kind of isolation linkage for blocking and reversing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105938768A (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2430322B1 (en) | Lock device for restricting rotational movement | |
| CN205609423U (en) | Unipolar operation three -station isolation switch operating device | |
| CN105938768B (en) | A kind of isolation linkage for blocking and reversing | |
| CN205670511U (en) | A kind of isolation linkage for blocking and reversing | |
| CN110071436A (en) | A kind of Intelligent joint lock switchgear | |
| CN103107037B (en) | The blocking mechanism of looped network cabinet and looped network cabinet | |
| CN104143771B (en) | A kind of high-tension switch cabinet | |
| CN105679591B (en) | Switch cubicle, tri-station isolating switch mechanism and its anti-error point of grounding interlocking device | |
| CN204696491U (en) | A kind of explosion-proof electrical distribution box | |
| CN205542545U (en) | High voltage isolation , earthing switch integration operating device | |
| CN205122420U (en) | Mine used frequency converter's blocking device | |
| CN202094010U (en) | Double-door interlocking device for coal mine down hole | |
| CN103887096A (en) | Down-hole explosion-proof power box outer power-off device and method | |
| CN106655485A (en) | Fault current cut-off method and device and vacuum load switch cabinet | |
| CN207116348U (en) | A kind of emergency brake-dividing device | |
| CN104252980A (en) | Disconnector fuse set and safety interlocking device thereof | |
| CN206179700U (en) | Portable long -range electronic minute brake gear of high tension switchgear | |
| CN105261500A (en) | Locking device of mine-used frequency converter | |
| CN203351457U (en) | Interlocking mechanism among isolating switch, vacuum circuit breaker and cabinet door | |
| CN105513857A (en) | Scram button and disconnecting switch interlocking mechanism | |
| CN209993885U (en) | Intelligent interlocking type switch cabinet | |
| CN105869959B (en) | A kind of omnipotent breaker button locking device | |
| CN107293426A (en) | A kind of ring main unit cabinet door interlock | |
| CN204155796U (en) | A kind of low voltage switchgear safe lock mechanism | |
| CN102779669A (en) | Interlocking device and electric control box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Isolating change-over interlocking device Effective date of registration: 20190326 Granted publication date: 20180727 Pledgee: Huainan Branch of Agricultural Bank of China Limited Pledgor: Triumph Heavy Industry Co.,Ltd. Registration number: 2019340000157 |