CN110416910A - A kind of switchgear and its valve drive mechanism with self-locking function - Google Patents
A kind of switchgear and its valve drive mechanism with self-locking function Download PDFInfo
- Publication number
- CN110416910A CN110416910A CN201910662046.2A CN201910662046A CN110416910A CN 110416910 A CN110416910 A CN 110416910A CN 201910662046 A CN201910662046 A CN 201910662046A CN 110416910 A CN110416910 A CN 110416910A
- Authority
- CN
- China
- Prior art keywords
- lock tongue
- plate
- connecting plate
- mounting rack
- lock
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The present invention relates to a kind of switchgear and its with the valve drive mechanism of self-locking function, valve drive mechanism includes mounting rack and rotational installation in the connecting plate on mounting rack, valve drive mechanism further includes the lock tongue that the guide direction movement parallel with the pivot center of connecting plate is assemblied on mounting rack, connecting plate is equipped with engagement mechanism, lock tongue has and the locking position of engagement mechanism grafting and the solution lock-bit being detached from engagement mechanism on its shift motion, reset spring is equipped between lock tongue and mounting rack, lock tongue has the pushing part for overcoming action of reset spring power dynamic to unlock displacement for corresponding unlock push rod pushing tow.In use, unlock push rod pushing tow lock tongue makes lock tongue along mounting rack guiding movement to Xie Suowei, lock tongue is unlocked connecting plate at this time, connecting plate can be rotated to drive valve to open, unlock push rod reverse movement, valve is closed, while lock tongue under the action of reset spring guiding movement to locking position, connecting plate, which is locked up, at this time is not able to rotate, plays the self-locking effect of valve.
Description
Divisional application of the application for following applications, the applying date of original application: on May 10th, 2017, the application of original application
Number: 201710326132.7, the denomination of invention of original application: a kind of switchgear and its valve drive mechanism with self-locking function.
Technical field
The present invention relates to a kind of switchgear and its with the valve drive mechanism of self-locking function.
Background technique
In electric system product, high-tension switch cabinet is one type important equipment.In switchgear, handcart type breaker
It is a kind of the most widely used breaker, moving contact is provided on handcart, static contact is mounted in switchgear and and high-voltage line
Road connection, using handcart propulsion or pull out and realize connecting or disconnecting for moving contact and static contact, and then realize the connection of circuit
Or it disconnects.Since static contact and high-tension line are connected as normal live end, to prevent maintenance personal from accidentally touching when overhauling circuit
And static contact and jeopardize the personal safety of maintenance personal, valve is installed on the fixation bracket of switchgear, it is quiet to block electrification
Contact simultaneously carries out security protection.
Valve is linked by transmission mechanism and handcart, and the transmission mechanism of the valve of traditional switchgear generally comprises installation
Frame, upper plate and lower plate, upper plate are connected with lower valve by short connecting rod, and lower plate is connected with upper valve by long connecting rod,
Upper plate and lower plate can be stirred respectively with hand by operator and then drive valve relative motion to open or close.Valve
When closing, to prevent upper and lower valve from opening because of maloperation, need to open upper lower plate manual locking to prevent maloperation
Valve.But sometimes service personnel is easily careless and inadvertent and forget the upper and lower connecting plate of manual locking, this will lead to electrical shock safety accident
Occur.
Summary of the invention
It can be by valve when the purpose of the present invention is to provide valve when a kind of propulsion of handcart normally to open, handcart pulls out
It is locked in the switchgear of closed state；The object of the invention is also to provide what a kind of switchgear used to have self-locking function simultaneously
The valve drive mechanism of energy.
To achieve the above object, a kind of technical solution of valve drive mechanism with self-locking function of the invention is: one
Kind has the valve drive mechanism of self-locking function, on mounting rack is used to that valve to be driven to open and close including mounting rack and rotational installation
Connecting plate, further include the lock tongue that the guide direction movement parallel with the pivot center of connecting plate is assemblied on mounting rack, set on connecting plate
There is engagement mechanism, lock tongue has locking position and and the engagement mechanism that connecting plate is locked with engagement mechanism grafting on its shift motion
The solution lock-bit of disengaging is equipped with the reset bullet for applying the active force for forcing its to move to locking displacement to lock tongue between lock tongue and mounting rack
Spring, lock tongue have the pushing part for overcoming action of reset spring power dynamic to unlock displacement for corresponding unlock push rod pushing tow.
The engagement mechanism is the card slot of the opening that is set on connecting plate towards lock tongue, and the lock tongue is equipped with recessing groove,
When lock tongue is located at solution lock-bit, recessing groove is opposite with card slot, and when lock tongue is located at locking position, lock tongue and card slot are engaged by clamping.
The pushing part is arcuate structure.
The mounting rack includes the first mounting plate and the second mounting plate, and the first mounting plate is L shaped plate, and the second mounting plate is U
Shape plate, the first mounting plate include the first side plate and the first bottom plate, and the second mounting plate includes two the second opposite side plates and one
Central floor panel, lock tongue guiding movement are installed on two the second side plates, and the first bottom plate and central floor panel link together.
A kind of technical solution of switchgear of the invention is: a kind of switchgear, including valve and with the work of self-locking function
Door drive mechanism, valve drive mechanism include mounting rack and rotational installation in the company for driving valve to open and close on mounting rack
Plate, further includes the lock tongue that the guide direction movement parallel with the pivot center of connecting plate is assemblied on mounting rack, and connecting plate is equipped with lock
Pore structure, lock tongue on its shift motion have with engagement mechanism grafting with lock connecting plate locking position and with engagement mechanism be detached from
Solution lock-bit, be equipped with to apply to lock tongue between lock tongue and mounting rack and force its reset spring to the dynamic active force of locking displacement,
Lock tongue has the pushing part for overcoming action of reset spring power dynamic to unlock displacement for corresponding unlock push rod pushing tow.
The engagement mechanism is the card slot of the opening that is set on connecting plate towards lock tongue, and the lock tongue is equipped with recessing groove,
When lock tongue is located at solution lock-bit, recessing groove is opposite with card slot, and when lock tongue is located at locking position, lock tongue and card slot are engaged by clamping.
The pushing part is arcuate structure.
The mounting rack includes the first mounting plate and the second mounting plate, and the first mounting plate is L shaped plate, and the second mounting plate is U
Shape plate, the first mounting plate include the first side plate and the first bottom plate, and the second mounting plate includes two the second opposite side plates and one
Central floor panel, lock tongue guiding movement are installed on two the second side plates, and the first bottom plate and central floor panel link together.
The connecting plate includes the first connecting plate and the second connecting plate, and pushing tow matching piece is provided on each connecting plate, and lock tongue is located at two
Between a pushing tow matching piece, unlock push rod be the U-board structure being open towards lock tongue, on the end of the intermediate plate of U-board structure
It is provided with and cooperates with the pushing part pushing tow of lock tongue so that intermediate plate pushing part of the lock tongue guiding movement to solution lock-bit, U-board structure
Two side plates end on be separately provided for on corresponding connecting plate pushing tow matching piece pushing tow cooperate so that each connecting plate
The side plate pushing part of rotation, intermediate plate pushing part protrude from two side plate pushing parts.
The beneficial effects of the present invention are: guiding movement is provided with lock tongue on mounting rack, it is correspondingly arranged on connecting plate with lock tongue
Engagement mechanism, switchgear of the invention in use, unlock push rod pushing tow lock tongue make lock tongue along mounting rack guiding movement extremely
Lock-bit is solved, lock tongue is unlocked connecting plate at this time, and connecting plate can be rotated to drive valve to open；Push rod reverse movement is unlocked, it is living
Door is closed, while to locking position, connecting plate is locked up at this time is not able to rotate guiding movement lock tongue, plays under the action of reset spring
The self-locking effect of valve.
Further, connecting plate is equipped with card slot, and lock tongue is equipped with groove, and such structure design, lock tongue is by locking position
When being moved to solution lock-bit, the moving displacement of lock tongue is short, can make the miniaturization of entire mechanism.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the valve drive mechanism in a kind of embodiment one of switchgear of the invention；
Fig. 2 is the structural schematic diagram of upper plate；
Fig. 3 is the structural schematic diagram of lower plate；
Fig. 4 is the structural schematic diagram of lock tongue；
Fig. 5 is the structural schematic diagram of mounting rack；
Fig. 6 is the structural schematic diagram of the unlock push rod of circuit breaker cart；
Fig. 7 is the structural schematic diagram unlocked before push rod and lock tongue pushing tow；
Fig. 8 is the structural schematic diagram unlocked after push rod and lock tongue pushing tow.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of specific embodiment one of switchgear of the invention, as shown in Figures 1 to 8, including circuit breaker cart, valve and
Valve drive mechanism with self-locking function, valve drive mechanism include mounting rack and pass through 5 rolling assembling of shaft in mounting rack
On the first connecting plate 6 and the second connecting plate 7, guiding movement is equipped with lock tongue 4 on mounting rack, the guiding movement direction of lock tongue 4 and the
One connecting plate 6, the pivot center direction of the second connecting plate 7 are parallel, and reset spring 3 is set between mounting rack and lock tongue 4.First connecting plate
The end of 6 separate shaft 5 is connect by first connecting rod with lower valve, and the end of the separate shaft 5 of the second connecting plate 7 passes through second
Connecting rod is connect with upper valve, and the rotation of the first connecting plate 6 and the second connecting plate 7 makes upper and lower valve relative motion to close valve or phase
It is unlucky dynamic to open valve.
Opening is provided on the pivoting end 10 of first connecting plate 6 to match towards the first card slot 12 of lock tongue and with the rotation of shaft 5
The first mounting hole 11 closed, be provided on the pivoting end 9 of the second connecting plate opening towards the second card slot 14 of lock tongue and with shaft 5
The second mounting hole 13 being rotatably assorted.Be provided on lock tongue 4 first groove 15 corresponding with the first card slot 12 and with the second card slot
14 corresponding second grooves 16, the lock tongue part except lock tongue part and the two point between the first groove 15 and the second groove 16
The clamping portion that Gou Cheng not be engaged by clamping with the first card slot 12 and the second card slot 14.Lock tongue 4 is recessed with first on its shift motion
12 face of slot 15 and the first card slot, 14 face of the second groove 16 and the second card slot so that the first, second connecting plate can rotate
Solve lock-bit, also there is under 3 effect of reset spring after reversed guiding movement lock tongue the first groove 15 and the first card slot 12 to be staggered, the
It is that two grooves 16 and the second card slot 14 are staggered so that the locking position that corresponding clamping portion is engaged by clamping with corresponding groove, lock tongue 4
When positioned at locking position, the first connecting plate 6 and the second connecting plate 7 are locked, 5 cannot rotate around the shaft, also just be unable to drive valve progress
It opens, plays self-locking effect.
Two springs for selecting a connection for reset spring are arranged at intervals with along its guiding movement direction on lock tongue 4 to connect
The one end in hole 18, reset spring 3 is connected on mounting rack, and the other end is connected in one of spring connecting hole 18.Mounting rack,
As shown in Figure 1 and Figure 5, including the first mounting plate 1 and the second mounting plate 2, the first mounting plate 1 are L shaped plate, and the second mounting plate 2 is U
Shape plate, a side plate of the second mounting plate 2 are equipped with the pilot hole 19 installed for 4 guiding movement of lock tongue, and another side plate is equipped with
With the guide groove 21 of 4 guiding movement of lock tongue cooperation and the first mounting hole of shaft 20 of one end installation for shaft 5, the first mounting plate
Be correspondingly arranged on the second mounting hole of shaft on 1 connecting plate with the first mounting hole of shaft 20, the first mounting plate 1 another
The intermediate plate of connecting plate and the second mounting plate 2 is bolted together.
Valve drive mechanism further includes unlock push rod 22, and unlock push rod 22 is set on circuit breaker cart, 6 He of the first connecting plate
The pushing tow matching piece 8 that each connecting plate rotation is driven for cooperating with circuit breaker cart pushing tow, lock tongue are provided on second connecting plate 7
4 are located between two pushing tow matching pieces 8, and corresponding one end of lock tongue 4 is equipped with for being moved with unlock push rod pushing tow cooperation with being oriented to
It moves to the arcuate structure 17 of solution lock-bit.The structure of push rod 22 is unlocked as shown in fig. 6, unlock push rod 22 is U-board structure, U-board
Structure includes intermediate plate and two side plates, and lock tongue 4 is located between two side plates, and the end of intermediate plate is provided with the arc with lock tongue 4
17 pushing tow of shape structure cooperates so that intermediate plate pushing part 23 of 4 guiding movement of lock tongue to solution lock-bit, two side plates of U-board structure
End on be separately provided for 8 pushing tow of pushing tow matching piece of corresponding connecting plate cooperate so that each connecting plate rotation side plate top
Pushed section 24, intermediate plate pushing part 23 protrude from two side plate pushing parts 24, and intermediate plate pushing part 23 and side plate pushing part 24 are
The turnup structure that the side plate of unlock push rod is outside is formed.
The course of work of the valve self-locking structure of switchgear of the invention are as follows: when circuit breaker cart is not pushed into the cabinet of switchgear
When in body, lock tongue 4 under the action of reset spring 3 be located at locking position, at this time the first groove 15 and the first card slot 12 be staggered, second
Groove 16 is staggered with the second card slot 14 so that corresponding clamping portion and the first card slot 12 and the second card slot 14 are engaged by clamping, and first connects
Plate 6 and the second connecting plate 7 are locked, 5 cannot be rotated around the shaft, valve is located at closed position, blocks electrification static contact；As general
During circuit breaker cart is pushed into the cabinet body of switchgear, 23 pushing tow lock tongue 4 of intermediate plate pushing part makes lock tongue 4 by locking position edge
Mounting rack guiding movement continues to press on circuit breaker cart to Xie Suowei, and unlock push rod 22 continues to move to, and opens after lock tongue 4 by two
A side plate pushing part 24 cooperates respectively with 8 pushing tow of pushing tow matching piece of corresponding connecting plate to drive corresponding connecting plate to rotate and then drive
Valve movement, completes the unlatching of valve.
A kind of embodiment two of switchgear of the invention, the difference with embodiment one are cooperating with unlock push rod for lock tongue
One end can not also be arcuate structure, wedge surface structure also can be set into, be also equipped with therewith on the intermediate plate of push rod at this time
The wedge surface structure of cooperation.
A kind of embodiment three of switchgear of the invention, the difference with embodiment one are the spring connecting hole on lock tongue
Quantity can also be adjusted according to actual needs, such as one or three.
A kind of example IV of switchgear of the invention, the difference with embodiment one are that the quantity of connecting plate can also only have
One, at this time valve also only one and be connected on connecting plate, a lock tongue groove is provided only on lock tongue at this time.
A kind of embodiment five of switchgear of the invention, the difference with embodiment one are intermediate plate pushing part and side plate top
Pushed section can also be formed by the cylindrical body or round tube of corresponding welding.
A kind of embodiment six of switchgear of the invention is that the structure of lock tongue is different from the difference of embodiment one, lock tongue
Including a pushing arm and a lockup arm, the length of pushing arm is greater than the length of lockup arm, unlock push rod and pushing arm pushing tow
When, lockup arm can be driven to separate with card slot, be not provided with groove on lock tongue at this time.
A kind of embodiment seven of switchgear of the invention, the difference with embodiment six are only that the card slot of connecting plate can also be by
Card hole is replaced to play the role of engagement mechanism.
A kind of embodiment eight of switchgear of the invention, the difference with embodiment one are that mounting rack may be integral type
U-board structure.
In a kind of embodiment of the valve drive mechanism with self-locking function and a kind of above-mentioned each embodiment of switchgear
The structure of valve drive mechanism is identical, and details are not described herein again.
Claims (5)
1. a kind of valve drive mechanism with self-locking function is used to drive including mounting rack and rotational installation on mounting rack
The connecting plate of valve opening and closing, it is characterised in that: further include that the guide direction movement parallel with the pivot center of connecting plate is assemblied in installation
Lock tongue on frame, connecting plate are equipped with engagement mechanism, and lock tongue has with engagement mechanism grafting on its shift motion to lock connecting plate
Locking position and with engagement mechanism be detached from solution lock-bit, between lock tongue and mounting rack be equipped with to lock tongue application force it to locking position
The reset spring of mobile active force, lock tongue have for for unlocking push rod pushing tow accordingly to overcome action of reset spring power to solution
The mobile pushing part of lock-bit, the mounting rack include the first mounting plate and the second mounting plate, and the first mounting plate is L shaped plate, and second
Mounting plate is U-board, and the first mounting plate includes the first side plate and the first bottom plate, and the second mounting plate includes two opposite second side
Plate and a central floor panel, lock tongue guiding movement are installed on two the second side plates, and the first bottom plate and central floor panel are connected to one
It rises.
2. the valve drive mechanism according to claim 1 with self-locking function, it is characterised in that: the pushing part is arc
Shape structure.
3. a kind of switchgear, including valve and with the valve drive mechanism of self-locking function, valve drive mechanism includes mounting rack
With rotational installation in the connecting plate for driving valve to open and close on mounting rack, it is characterised in that: further include guide direction and connecting plate
The parallel movement of pivot center be assemblied in the lock tongue on mounting rack, connecting plate is equipped with engagement mechanism, and lock tongue is in its shift motion
The upper solution lock-bit with engagement mechanism grafting to lock the locking position of connecting plate and be detached from engagement mechanism, lock tongue and mounting rack it
Between be equipped with to apply to lock tongue and force its reset spring to the dynamic active force of locking displacement, lock tongue has for pushing away for corresponding unlock
Pushing part of the bar pushing tow to overcome action of reset spring power dynamic to unlock displacement, the mounting rack includes the first mounting plate and second
Mounting plate, the first mounting plate are L shaped plate, and the second mounting plate is U-board, and the first mounting plate includes the first side plate and the first bottom plate,
Second mounting plate includes two the second opposite side plates and a central floor panel, and lock tongue guiding movement is installed on two the second side plates
On, the first bottom plate and central floor panel link together.
4. switchgear according to claim 3, it is characterised in that: the pushing part is arcuate structure.
5. switchgear according to claim 3, it is characterised in that: the connecting plate includes the first connecting plate and the second connecting plate, respectively
Pushing tow matching piece is provided on connecting plate, lock tongue is located between two pushing tow matching pieces, and unlock push rod is U of the opening towards lock tongue
Shape hardened structure is provided on the end of the intermediate plate of U-board structure and cooperates with the pushing part pushing tow of lock tongue so that lock tongue guiding is moved
It moves to the intermediate plate pushing part of solution lock-bit, is separately provided for and corresponding company on the end of two side plates of U-board structure
Pushing tow matching piece pushing tow on plate cooperates the side plate pushing part so that the rotation of each connecting plate, and intermediate plate pushing part protrudes from two side plates
Pushing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662046.2A CN110416910B (en) | 2017-05-10 | 2017-05-10 | Switch cabinet and valve driving mechanism with self-locking function |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326132.7A CN106953260B (en) | 2017-05-10 | 2017-05-10 | A kind of switchgear and its valve drive mechanism with self-locking function |
| CN201910662046.2A CN110416910B (en) | 2017-05-10 | 2017-05-10 | Switch cabinet and valve driving mechanism with self-locking function |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326132.7A Division CN106953260B (en) | 2017-05-10 | 2017-05-10 | A kind of switchgear and its valve drive mechanism with self-locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110416910A true CN110416910A (en) | 2019-11-05 |
| CN110416910B CN110416910B (en) | 2020-12-04 |
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910662046.2A Active CN110416910B (en) | 2017-05-10 | 2017-05-10 | Switch cabinet and valve driving mechanism with self-locking function |
| CN201710326132.7A Active CN106953260B (en) | 2017-05-10 | 2017-05-10 | A kind of switchgear and its valve drive mechanism with self-locking function |
| CN201910663021.4A Active CN110247330B (en) | 2017-05-10 | 2017-05-10 | Switch cabinet and valve driving mechanism with self-locking function |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326132.7A Active CN106953260B (en) | 2017-05-10 | 2017-05-10 | A kind of switchgear and its valve drive mechanism with self-locking function |
| CN201910663021.4A Active CN110247330B (en) | 2017-05-10 | 2017-05-10 | Switch cabinet and valve driving mechanism with self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN110416910B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887198B (en) * | 2017-12-20 | 2020-07-28 | 青岛特锐德电气股份有限公司 | Interlocking device for door body of switch cabinet |
| CN109462169B (en) * | 2018-12-13 | 2023-07-04 | 国家电网有限公司 | Handcart switch operation crank and method |
| CN113874186B (en) * | 2019-06-14 | 2023-09-29 | 有限会社爱勇气技研 | Separation locking device and injection molding die assembly using the same |
| CN111193215B (en) * | 2020-03-24 | 2024-03-08 | 上海西门子开关有限公司 | Valve driving mechanism, valve mechanism and handcart linkage mechanism of switch cabinet |
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| ITMI20070623A1 (en) * | 2007-03-28 | 2008-09-29 | Mont Ele S R L | INTEGRATED SYSTEM FOR FIRST AND SECOND THREE-WHEEL MANEUVER-SWITCHES, WITH SIMPLIFIED MAINTENANCE, FOR RAILWAYS, METRO, AND SUBWAYS. |
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2017
- 2017-05-10 CN CN201910662046.2A patent/CN110416910B/en active Active
- 2017-05-10 CN CN201710326132.7A patent/CN106953260B/en active Active
- 2017-05-10 CN CN201910663021.4A patent/CN110247330B/en active Active
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| CN201233814Y (en) * | 2008-08-01 | 2009-05-06 | 汕头正超电气集团有限公司 | Movable door locking mechanism for withdrawn type switch cabinet |
| CN205911630U (en) * | 2016-08-23 | 2017-01-25 | 温州兴机电器有限公司 | Take card rail formula valve arrangement of valve auto -lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110416910B (en) | 2020-12-04 |
| CN110247330B (en) | 2021-06-15 |
| CN106953260B (en) | 2019-06-14 |
| CN106953260A (en) | 2017-07-14 |
| CN110247330A (en) | 2019-09-17 |
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