CN109980567B - Inlet valve device of centrally-mounted movable switch equipment - Google Patents
Inlet valve device of centrally-mounted movable switch equipment Download PDFInfo
- Publication number
- CN109980567B CN109980567B CN201910380174.8A CN201910380174A CN109980567B CN 109980567 B CN109980567 B CN 109980567B CN 201910380174 A CN201910380174 A CN 201910380174A CN 109980567 B CN109980567 B CN 109980567B
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- valve
- connecting rod
- crank arm
- guide rail
- breaker
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- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000005192 partition Methods 0.000 claims abstract description 34
- 238000005452 bending Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000007306 turnover Effects 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Trip Switchboards (AREA)
Abstract
The invention discloses a vehicle-entering valve device of a centrally-mounted movable switch device, which comprises a breaker, a vehicle-entering mechanism for driving the breaker to advance and retreat and a valve mechanism arranged between a breaker chamber and a bus chamber of the switch device; the circuit breaker is arranged at the top of the driving mechanism, the driving mechanism is connected with the valve mechanism, and the valve mechanism is fixed on a middle partition plate between the circuit breaking chamber and the bus chamber of the switchgear and used for removing shielding of a contact box arranged on the middle partition plate. The invention has simple structure, the roller rolls in the guide rail groove, the breaker moves horizontally along the guide rail groove, the accuracy of the running stroke is ensured, the roller extrudes the crank arm to move through the upper connecting rod and the lower connecting rod, and further the upper valve and the lower valve are driven to turn over, the turning response of the upper valve and the lower valve in the process is timely, the contact between the breaker and the contact box is not influenced, the distance between the turned upper valve and the lower valve and the electrified insulator is furthest increased, and the insulation level of the whole switch equipment is improved.
Description
Technical Field
The invention relates to the technical field of electrical switching equipment, in particular to a vehicle inlet valve device of a centrally-mounted movable switching equipment.
Background
The movable type switch equipment is relatively common high-voltage switch equipment, and is generally composed of a relay protection instrument room, a breaker room, a bus room and a cable terminal room, wherein the breaker is arranged in the breaker room, and the breaker can be moved to a contact position in a contact box on the premise that the switch equipment is not dismounted, so that the electrical connection between the bus room and the cable room is realized.
The core component of the movable switch equipment is a vehicle inlet valve mechanism. The circuit breaker of the centrally-mounted movable switch equipment is positioned in the middle of the switch equipment, and the matching requirement of the vehicle inlet valve mechanism is more accurate. Most of the existing centrally-mounted movable switch equipment adopts a design that a chassis is arranged at the lower part of a circuit breaker, collision plates are arranged at two sides of the circuit breaker, and when the circuit breaker moves, the collision plates drive a valve to move up and down. There are some obvious disadvantages to this type of design, such as: the valve adopts a vertical movement mode, and the insulation distance between the valve in an opened state and the electrified body is smaller due to the limit of the stroke, so that the insulation level of the switch equipment is reduced; the matching precision of the striking plate and the valve mechanism is not high, offset often occurs, so that the valve cannot be opened in time to be damaged, and a vehicle-entering valve device of the movable type switch equipment is needed to be designed to solve the problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a vehicle inlet valve device of a centrally-mounted movable switch device, so as to solve the problems that the travel of the conventional valve mechanism is limited, the insulation level of the switch device is affected and the valve cannot be opened in time.
The aim of the invention is realized by the following technical scheme:
An in-car valve device of a mid-put movable switch device is applicable to the movable switch device and comprises a breaker, an in-car mechanism for driving the breaker to advance and retreat and a valve mechanism arranged between a breaker chamber and a bus chamber of the switch device; the circuit breaker sets up at the top of advancing car mechanism, advance car mechanism and valve mechanism and connect, valve mechanism fixes on the intermediate barrier between switchgear circuit breaker room and the bus-bar room and is used for removing the shielding to setting up the contact box on the intermediate barrier.
The vehicle inlet mechanism comprises a vehicle inlet framework and a vehicle inlet assembly, wherein the vehicle inlet framework comprises a front bending plate, a rear bending plate, a left guide rail and a right guide rail, the front bending plate, the rear bending plate, the left guide rail and the right guide rail are fixed through bolts to form a rectangular vehicle inlet framework, and U-shaped plate-shaped guide rail grooves are formed in the left guide rail and the right guide rail; the bottom of the circuit breaker is provided with a circuit breaker hook plate and a plurality of rollers arranged on the left side and the right side of the bottom of the circuit breaker.
The feeding assembly comprises a hexagonal head screw and a sliding block sleeved on the hexagonal head screw, two ends of the hexagonal head screw are supported on a support arranged in a feeding framework, a boss at the top of the sliding block is meshed with a groove arranged on a hook plate of the circuit breaker, and the sliding block is driven to move along the horizontal direction by rotating the hexagonal head screw, so that the circuit breaker is driven to move forwards and backwards.
The valve mechanism comprises an upper valve, a lower valve and a crank arm, wherein the upper valve is positioned on the upper part of the middle partition plate and shields a contact box arranged on the upper part of the middle partition plate, the lower valve is positioned in the middle part of the middle partition plate and shields a contact box arranged in the middle part of the middle partition plate, the upper valve and the lower valve are both connected with the middle partition plate through valve supports, one ends of the valve supports are fixed with the middle partition plate in a bolt fixing mode, the other ends of the valve supports are respectively hinged with the upper valve and the lower valve through valve pin shafts, an upper connecting rod is further arranged between the upper valve and the lower valve, one end of the upper connecting rod is hinged with the lower valve through a connecting rod pin shaft arranged in the middle part of the lower valve, a lower connecting rod is further arranged between the lower valve and the crank arm, one end of the lower connecting rod is hinged with the lower valve through a connecting rod pin shaft, the other ends of the lower connecting rod are respectively hinged with the right part of the crank arm through crank arm pin shafts, and the left part of the crank arm is respectively hinged with the left guide rail and the right guide rail.
The left guide rail and the right guide rail are further provided with positioning plates, the upper portions of the positioning plates are provided with upper positioning pins, the lower portions of the positioning plates are provided with lower positioning pins, tension springs are further arranged between the positioning plates and the crank arms, one ends of the tension springs are fixed to the tops of the positioning plates, and the other ends of the tension springs are fixed to the connecting rod pin shafts of the crank arms.
The roller presses the crank arm and realizes clockwise rotation of the crank arm by taking the crank arm pin shaft as the center when the roller is driven by the vehicle inlet assembly to move close to the middle partition plate, and the upper connecting rod and the lower connecting rod realize clockwise and anticlockwise overturning of the upper valve and the lower valve by taking the valve pin shaft as the center under the driving of the crank arm, so that the shielding of the contact box is relieved; when the roller moves away from the middle partition plate under the drive of the vehicle inlet assembly, the crank arm rotates anticlockwise by taking the crank arm pin shaft as the center under the action of the elasticity of the tension spring, and the upper connecting rod and the lower connecting rod realize that the upper valve and the lower valve rotate anticlockwise and clockwise respectively by taking the valve pin shaft as the center under the drive of the crank arm, so that shielding of the contact box is realized.
The beneficial effects of the invention are as follows:
The invention has simple structure, the roller rolls in the guide rail groove, the breaker moves horizontally along the guide rail groove, the accuracy of the running stroke is ensured, the roller extrudes the crank arm to move through the upper connecting rod and the lower connecting rod, and further the upper valve and the lower valve are driven to turn over, the turning response of the upper valve and the lower valve in the process is timely, the contact between the breaker and the contact box is not influenced, the distance between the turned upper valve and the lower valve and the electrified insulator is furthest increased, and the insulation level of the whole switch equipment is improved.
Drawings
Fig. 1 is a side view of a circuit breaker of the present invention in a test position;
fig. 2 is a side view of the circuit breaker of the present invention in an operating position;
Fig. 3 is a B-B cross-sectional view of the circuit breaker of fig. 1, after removal;
Fig. 4 is a view in direction a of fig. 1 with the circuit breaker removed;
fig. 5 is a detailed view of the push-fit of the circuit breaker of the present invention;
In the figure, the frame is advanced to 1-, 2-hexagonal head, 3-support, 4-slider, 5-circuit breaker hook plate, 6-hexagonal head lead screw, 7-circuit breaker, 8-middle baffle, 9-valve round pin axle, 10-valve support, 11-upper valve, 12-upper connecting rod, 13-contact box, 14-lower valve, 15-connecting rod round pin axle, 16-lower connecting rod, 17-upper locating edge, 18-upper locating pin, 19-crank arm connecting rod round pin axle, 20-crank arm, 21-crank arm upper edge, 22-roller, 23-guide rail groove, 24-crank arm round pin axle, 25-extension spring, 26-lower locating edge, 27-lower locating pin, 28-front bent plate, 29-back bent plate, 30-left guide rail, 31-right guide rail, 32-boss, 33-groove, 34-locating plate.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
The connection mode of the vehicle inlet valve device of the centrally-mounted movable type switch equipment is as follows:
An in-car valve device of a mid-put movable switch device is applicable to the movable switch device and comprises a breaker 7, an in-car mechanism for driving the breaker 7 to move forwards and backwards and a valve mechanism arranged between a breaker chamber and a bus chamber of the switch device; the breaker 7 is arranged at the top of a vehicle inlet mechanism, the vehicle inlet mechanism is connected with a valve mechanism, and the valve mechanism is fixed on a middle partition plate 8 between a breaker chamber and a bus bar chamber of the switch equipment and is used for removing shielding of a contact box 13 arranged on the middle partition plate 8.
The vehicle inlet mechanism comprises a vehicle inlet framework 1 and a vehicle inlet assembly, wherein the vehicle inlet framework 1 comprises a front bent plate 28, a rear bent plate 29, a left guide rail 30 and a right guide rail 31, the front bent plate 28, the rear bent plate 29, the left guide rail 30 and the right guide rail 31 are fixed through bolts to form the rectangular vehicle inlet framework 1, and U-shaped guide rail grooves 23 are formed in the left guide rail 30 and the right guide rail 31; the bottom of the breaker 7 is provided with a breaker hook plate 5 and a plurality of rollers 22 arranged on the left side and the right side of the bottom of the breaker 7.
The feeding assembly comprises a hexagonal head lead screw 6 and a sliding block 4 sleeved on the hexagonal head lead screw 6, two ends of the hexagonal head lead screw 6 are supported on a support 3 arranged in the feeding framework 1, a boss 32 at the top of the sliding block 4 is meshed with a groove 33 arranged on a hook plate 5 of the circuit breaker, and the sliding block 4 is driven to move along the horizontal direction by rotating the hexagonal head lead screw 6, so that the circuit breaker 7 is driven to move forwards and backwards.
The valve mechanism comprises an upper valve 11, a lower valve 14 and a crank arm 20, wherein the upper valve 11 is positioned on the upper part of the middle partition 8 and shields a contact box 13 arranged on the upper part of the middle partition 8, the lower valve 14 is positioned in the middle part of the middle partition 8 and shields a contact box 13 arranged in the middle part of the middle partition 8, the upper valve 11 and the lower valve 14 are both connected with the middle partition 8 through a valve support 10, one end of the valve support 10 is fixed with the middle partition 8 in a bolt fixing mode, the other end of the valve support 10 is respectively hinged with the upper valve 11 and the lower valve 14 through a valve pin shaft 9, an upper connecting rod 12 is arranged between the upper valve 11 and the lower valve 14, one end of the upper connecting rod 12 is hinged with the right upper corner of the upper valve 11, the other end of the upper connecting rod 12 is hinged with the lower valve 14 through a connecting rod pin shaft 15 arranged in the middle part of the lower valve 14, one end of the lower connecting rod 16 is hinged with the lower valve 14 through a connecting rod pin shaft 15 and the lower valve support 20, the other end of the lower connecting rod 16 is respectively hinged with the right valve 11 and the crank arm 20 through a crank arm pin shaft 19, and the left valve 16 is respectively hinged with a left guide rail 30 and a right guide rail 30.
The left guide rail 30 and the right guide rail 31 are further provided with a positioning plate 34, the upper portion of the positioning plate 34 is provided with an upper positioning pin 18, the lower portion of the positioning plate is provided with a lower positioning pin 27, a tension spring 25 is further arranged between the positioning plate 34 and the crank arm 20, one end of the tension spring 25 is fixed to the top of the positioning plate 34, and the other end of the tension spring is fixed to the crank arm connecting rod pin 19.
The roller 22 presses the crank arm 20 and realizes clockwise rotation of the crank arm 20 by taking the crank arm pin shaft 24 as a center when being driven by the vehicle inlet assembly to move close to the middle partition plate 18, and the upper connecting rod 12 and the lower connecting rod 16 realize clockwise and anticlockwise overturning of the upper valve 11 and the lower valve 14 by taking the valve pin shaft 9 as a center under the driving of the crank arm 20, so that shielding of the contact box 13 is relieved; when the roller 22 is driven by the vehicle inlet assembly to move away from the middle partition plate 18, the crank arm 20 rotates anticlockwise by taking the crank arm pin shaft 24 as a center under the action of the elasticity of the tension spring 25, and the upper connecting rod 12 and the lower connecting rod 16 respectively rotate anticlockwise and clockwise by taking the valve pin shaft 9 as a center under the driving of the crank arm 20, so that the contact box 13 is shielded.
The operation process of the vehicle inlet valve device of the centrally-mounted movable type switch equipment is as follows:
As shown in fig. 1 and 2, the invention is used for the motion matching connection of a circuit breaker and a conductive component in a centrally-mounted movable switch equipment. The breaker 7 is pushed to the working position from the test position through the feeding assembly, and meanwhile, the valve mechanism is driven to turn over to release the shielding of the contact box, so that the breaker is in plug-in fit with the conductive part in the contact box.
As shown in fig. 1 and 3, the vehicle-entering frame 1 of the present invention is positioned at the lower part of the circuit breaker 7, and is formed by bolting a front bending plate 28, a rear bending plate 29, a left rail 30 and a right rail 31. The left rail 30 and the right rail 31 are respectively provided with a rail groove 23, the breaker roller 22 rolls in the rail groove 23, and the breaker 7 can move horizontally along the rail groove 23.
As shown in fig. 1 and 5, a hexagonal lead screw 6 and a slider 4 mounted in the carriage frame 1 drive a breaker 7 to advance or retract. The specific structure of the part is as follows: the two ends of the hexagonal head screw rod 6 are supported in the support 3, the middle part of the hexagonal head screw rod is in transmission relation with the sliding block 4 through trapezoidal threads, one end of the hexagonal head screw rod 6 is sleeved with the hexagonal head 2, the hexagonal head 2 and the hexagonal head screw rod 6 are integrally formed, and a boss 32 at the upper part of the sliding block 4 is meshed with a groove 33 at the lower part of the hook plate 5 of the circuit breaker.
When an operator rotates the hexagonal head 2 through a special tool, the screw rod 6 is driven to rotate, and the sliding block 4 is pushed to do linear motion. The upper boss 32 of the slide 4 is engaged with the lower recess 33 of the hook plate 5 to drive the circuit breaker 7 forward or backward in the switchgear.
As shown in fig. 1 and 4, the shutter mechanism of the present invention has the following structure: the contact box 13 is arranged on the middle partition plate 8 in a protruding way, so that the insulation distance between the circuit breaker 7 and the middle partition plate 8 is increased; the valve support 10 is fixed on the middle partition plate 8 and supports the upper valve 11 and the lower valve 14 through valve pin shafts 9; the upper valve 11 and the lower valve 14 are connected through an upper connecting rod 12 and a connecting rod pin shaft 15; the lower valve 14 is connected with a crank arm 20 through a lower connecting rod 16 and a crank arm connecting rod pin shaft 19. The breaker roller 22 drives the crank arm 20, and further drives the lower link 16 and the upper link 12 to realize overturning movement.
As shown in fig. 1, in order to position the circuit breaker 7 in the test position, the circuit breaker roller 22 does not press the lever 20, the tension spring 25 pulls the lever 20, so that the lever 20 rotates counterclockwise around the lever pin 24, and the upper positioning edge 17 of the lever 20 is limited by the upper positioning pin 18, and at this time, the lever 20 is positioned at an angle that is exactly such that the upper and lower shutters 11 and 14 are positioned at a horizontal angle, so as to cover the contact box 13.
As shown in fig. 2, the circuit breaker 7 is in an operating position. The breaker 7 moves towards the middle partition plate 8, and the breaker roller 22 presses the upper edge 21 of the crank arm, so that the crank arm 20 rotates clockwise around the crank arm pin shaft 24. The crank arm 20 drives the lower connecting rod 16 and the upper connecting rod 12 to move, and then drives the lower valve 14 and the upper valve 11 to respectively turn around the valve pin shaft 9 in the anticlockwise and clockwise directions. The lower locating edge 26 of the crank arm 20 is limited by the lower locating pin 27, and the crank arm 20 is positioned at an angle which enables the upper valve 11 and the lower valve 14 to release the shielding of the contact box 13. At this time, the circuit breaker 7 is plugged together with the conductive member of the contact box 13.
The invention has simple structure, the roller rolls in the guide rail groove, the breaker moves horizontally along the guide rail groove, the accuracy of the running stroke is ensured, the roller extrudes the crank arm to move through the upper connecting rod and the lower connecting rod, and further the upper valve and the lower valve are driven to turn over, the turning response of the upper valve and the lower valve in the process is timely, the contact between the breaker and the contact box is not influenced, the distance between the turned upper valve and the lower valve and the electrified insulator is furthest increased, and the insulation level of the whole switch equipment is improved.
Indeed, various other embodiments of the invention may be made by those skilled in the art without departing from the spirit and substance of the invention, and it is intended that all such modifications and variations fall within the scope of the appended claims.
Claims (4)
1. An in-car valve device of a mid-put movable type switch device, which is suitable for the movable type switch device and is characterized in that: the device comprises a breaker (7), a vehicle feeding mechanism for driving the breaker (7) to move forwards and backwards and a valve mechanism arranged between a breaker chamber and a bus chamber of the switch equipment; the circuit breaker (7) is arranged at the top of the vehicle inlet mechanism, the vehicle inlet mechanism is connected with the valve mechanism, and the valve mechanism is fixed on a middle partition plate (8) between a circuit breaker chamber and a bus chamber of the switch equipment and is used for removing shielding of a contact box (13) arranged on the middle partition plate (8);
The valve mechanism comprises an upper valve (11), a lower valve (14) and a crank arm (20), wherein the upper valve (11) is positioned at the upper part of the middle partition plate (8) and shields a contact box (13) arranged at the upper part of the middle partition plate (8), the lower valve (14) is positioned at the middle part of the middle partition plate (8) and shields a contact box (13) arranged at the middle part of the middle partition plate (8), the upper valve (11) and the lower valve (14) are connected with the middle partition plate (8) through valve supports (10), one end of each valve support (10) is fixed with the middle partition plate (8) in a bolt fixing mode, the other end of each valve support (10) is hinged with the upper valve (11) and the lower valve (14) through valve pin shafts (9), an upper connecting rod (12) is further arranged between the upper valve (11) and the lower valve (14), one end of each upper connecting rod (12) is hinged with a right upper corner of the upper connecting rod (11), the other end of each upper connecting rod (12) is hinged with the corresponding lower valve (14) through a pin shaft (15) arranged at the middle part of the lower valve (14), one end of each lower connecting rod (16) is further hinged with the corresponding valve (16) through a pin shaft (16), the other end of the lower connecting rod (16) is hinged with the right part of the crank arm (20) through a crank arm connecting rod pin shaft (19), and the left part of the crank arm (20) is respectively hinged with a left guide rail (30) and a right guide rail (31) through a crank arm pin shaft (24); the feeding mechanism comprises a feeding framework (1) and a feeding assembly, the feeding assembly comprises a hexagonal head screw (6) and a sliding block (4) sleeved on the hexagonal head screw (6), two ends of the hexagonal head screw (6) are supported on a support (3) arranged in the feeding framework (1), a boss (32) at the top of the sliding block (4) is meshed with a groove (33) arranged on a hook plate (5) of the circuit breaker, and the sliding block (4) is driven to move along the horizontal direction by rotating the hexagonal head screw (6), so that the circuit breaker (7) is advanced and retreated.
2. The access door assembly for a mid-mounted, removable switching device of claim 1, wherein: the vehicle inlet framework (1) comprises a front bending plate (28), a rear bending plate (29), a left guide rail (30) and a right guide rail (31), wherein the front bending plate (28), the rear bending plate (29), the left guide rail (30) and the right guide rail (31) are fixed through bolts to form the rectangular vehicle inlet framework (1), and U-shaped plate-shaped guide rail grooves (23) are formed in the left guide rail (30) and the right guide rail (31); the bottom of the circuit breaker (7) is provided with a circuit breaker hook plate (5) and a plurality of rollers (22) arranged on the left side and the right side of the bottom of the circuit breaker (7).
3. The access door assembly for a mid-mounted, removable switching device of claim 1, wherein: the left guide rail (30) and the right guide rail (31) are further provided with positioning plates (34), the upper portions of the positioning plates (34) are provided with upper positioning pins (18), the lower portions of the positioning plates are provided with lower positioning pins (27), tension springs (25) are further arranged between the positioning plates (34) and the crank arms (20), one ends of the tension springs (25) are fixed to the tops of the positioning plates (34), and the other ends of the tension springs are fixed to the crank arm connecting rod pin shafts (19).
4. The in-car shutter device of a mid-put pull-out switchgear as claimed in claim 2, wherein: the roller (22) extrudes the crank arm (20) and realizes clockwise rotation of the crank arm (20) by taking the crank arm pin shaft (24) as a center when being driven by the vehicle inlet assembly to move close to the middle partition plate (8), and the upper connecting rod (12) and the lower connecting rod (16) realize clockwise and anticlockwise overturning of the upper valve (11) and the lower valve (14) by taking the valve pin shaft (9) as a center under the driving of the crank arm (20), so that shielding of the contact box (13) is relieved; when the roller (22) moves away from the middle partition plate (8) under the driving of the vehicle inlet component, the crank arm (20) rotates anticlockwise by taking the crank arm pin shaft (24) as the center under the elastic action of the tension spring (25), and the upper connecting rod (12) and the lower connecting rod (16) rotate anticlockwise and clockwise by taking the valve pin shaft (9) as the center under the driving of the crank arm (20), so that shielding of the contact box (13) is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380174.8A CN109980567B (en) | 2019-05-08 | 2019-05-08 | Inlet valve device of centrally-mounted movable switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380174.8A CN109980567B (en) | 2019-05-08 | 2019-05-08 | Inlet valve device of centrally-mounted movable switch equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109980567A CN109980567A (en) | 2019-07-05 |
| CN109980567B true CN109980567B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910380174.8A Active CN109980567B (en) | 2019-05-08 | 2019-05-08 | Inlet valve device of centrally-mounted movable switch equipment |
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| CN (1) | CN109980567B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117394189B (en) * | 2023-10-20 | 2024-03-22 | 江苏德纪特电气有限公司 | Switch cabinet valve device and switch cabinet thereof |
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| KR20160051090A (en) * | 2014-10-31 | 2016-05-11 | 엘에스산전 주식회사 | Door Interlock Device of Vacuum Circuit Breaker |
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| CN209544996U (en) * | 2019-05-08 | 2019-10-25 | 四川达卡电气有限公司 | A kind of middle disposed withdrawn type switchgear into vehicle valve arrangement |
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2019
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|---|---|---|---|---|
| JPH0951606A (en) * | 1995-08-07 | 1997-02-18 | Fuji Electric Co Ltd | Shutter device of breaker for distribution panel |
| CN2299190Y (en) * | 1997-04-04 | 1998-12-02 | 沈阳华利能源设备制造有限公司 | Split valve mechanism |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109980567A (en) | 2019-07-05 |
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