CN203218127U - Earthing switch and back-door interlocking mechanism for medium-voltage switch cabinet - Google Patents
Earthing switch and back-door interlocking mechanism for medium-voltage switch cabinet Download PDFInfo
- Publication number
- CN203218127U CN203218127U CN 201320206529 CN201320206529U CN203218127U CN 203218127 U CN203218127 U CN 203218127U CN 201320206529 CN201320206529 CN 201320206529 CN 201320206529 U CN201320206529 U CN 201320206529U CN 203218127 U CN203218127 U CN 203218127U
- Authority
- CN
- China
- Prior art keywords
- back door
- interlocking shaft
- door interlocking
- guide
- door
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model discloses an earthing switch and back-door interlocking mechanism for a medium-voltage switch cabinet and the mechanism includes a back-door interlocking shaft; a guide sleeve is sleeved on the back-door interlocking shaft; the guide sleeve is fixedly connected with two guide columns which are arranged to be parallel with the guide sleeve; the tail ends of the two guide columns are arranged in the two guide holes of a cabinet door frame; a spring stop ring is fixedly arranged on the back-door interlocking shaft; a pressure spring is arranged between the rear end of the guide sleeve and the spring stop ring; the tail end of the guide sleeve is provided with a clamping groove; the back-door interlocking shaft is provided with a clamping pin; and a lock pin which is parallel with the clamping pin is arranged at the tail end of the back-door interlocking shaft. Through adoption of the above-mentioned structure, the back door can be opened only after the earthing switch is switched on so that the requirement that the switch must be switched on in maintenance is met; and the earthing switch can be switched off only after the back door is closed. Thus safe interlocking requirements are met through the two interlocking steps. Through the above-mentioned arrangement, the interlocking mechanism is simple in structure, flexible in operation, firm in interlocking and high in safety coefficient so that security of maintenance personnel is ensured.
Description
Technical field
The utility model relates to a kind of for the interlocking gear that is pressed into complete equipment, specifically a kind of Medium Voltage Switchgear earthed switch and back door interlocking device.
Background technology
For in be pressed into complete equipment, in be pressed in the complete equipment and must have earthed switch, the effect of earthed switch is when maintenance, earthed switch closes a floodgate and makes cabinet ground connection, to guarantee maintainer's personal safety, in order to guarantee maintainer's personal safety more reliably, in the prior art generally in be pressed into and be provided with interlocking device in the complete equipment, it is at present domestic that to be pressed into the back gate interlock that cover producer adopts in main be old-fashioned KYN-28 structure, existing this interlocking device mainly exists operation dumb, defectives such as back interlocking hook easy fracture, therefore existing this interlocking device is difficult to guarantee maintainer's personal safety.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of simple in structure, flexible operation, Medium Voltage Switchgear earthed switch and back door interlocking device that coefficient of safety is high.
In order to solve the problems of the technologies described above, Medium Voltage Switchgear earthed switch of the present utility model and back door interlocking device, comprise one and the vertically disposed back door of cabinet door frame interlocking shaft, be with a guide pin bushing that can move forward and backward along the back door interlocking shaft on the interlocking shaft of back door, be fixedly connected with two guide pillars that be arranged in parallel with guide pin bushing on the guide pin bushing, the end of two guide pillars is positioned at two guide holes of cabinet door frame; Be set with a check ring on the interlocking shaft of back door, be provided with stage clip between rear end of conducting sleeve and the check ring, the end of guide pin bushing is provided with a draw-in groove, and the back door interlocking shaft is provided with a bayonet lock, can make bayonet lock just in time be positioned at draw-in groove when guide pillar moves to cabinet door frame end; Back door interlocking the tip of the axis also has a lock pin that be arranged in parallel with bayonet lock.
After adopting above-mentioned structure, owing to be with a guide pin bushing that can move forward and backward along the back door interlocking shaft on the back door interlocking shaft that arranges and the back door interlocking shaft, be provided with stage clip between the check ring on rear end of conducting sleeve and the back door interlocking shaft, after having only earthed switch to close a floodgate thus, back Xiamen just can be opened, the needs that must close a floodgate when having satisfied maintenance; Only have a back door connection shut after, earthed switch could separating brake, realized the needs of safety interlocking arranging thus by two interlocking links, simple in structure, flexible operation, it is firm to interlock, the coefficient of safety height has ensured attendant's safety.
Description of drawings
Fig. 1 is door opening state structural representation of the present utility model;
Fig. 2 is the status architecture schematic diagram of closing the door of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, Medium Voltage Switchgear earthed switch of the present utility model and back door interlocking device are described in further detail.
As shown in the figure, Medium Voltage Switchgear earthed switch of the present utility model and back door interlocking device, comprise one and cabinet door frame 1 vertically disposed back door interlocking shaft 2, be with a guide pin bushing 3 that can move forward and backward along back door interlocking shaft 2 on the back door interlocking shaft 2, be fixedly connected with two guide pillars 4 that be arranged in parallel with guide pin bushing 3 on the guide pin bushing 3, the end of two guide pillars 4 is positioned at two guide holes of cabinet door frame 1, two guide holes are mixed at back door lock, thus ought be at closing time, can mix the roof pressure guide pillar by the back door lock, promoting guide pillar moves to the direction away from the cabinet door frame, be set with a check ring 5 on the back door interlocking shaft 2, be provided with stage clip 6 between guide pin bushing 3 rear ends and the check ring 5, the end of guide pin bushing 3 is provided with a draw-in groove 7, back door interlocking shaft 2 is provided with a bayonet lock 8, can make bayonet lock 8 just in time be positioned at draw-in groove 7 when guide pillar 4 moves to cabinet door frame 1 end; The end of back door interlocking shaft 2 also has a lock pin 9 that be arranged in parallel with bayonet lock 8.
Its operation principle is as follows:
After earthed switch closed a floodgate, the back door interlocking segment made bayonet lock be stuck in the draw-in groove of guide pin bushing under the effect of stage clip, and the back door interlocking shaft can't rotate, and earthed switch also just can't be operated, and the lock pin on the interlocking shaft of back door is in released state at this moment, and the back door can be opened;
When the back door was closed, back door lock was mixed and has been pushed down the guide pillar of fixedlying connected with guide pin bushing, and guide pin bushing is along with guide pillar moves toward the direction away from the cabinet door frame, and bayonet lock has broken away from the draw-in groove of guide pin bushing simultaneously, and the back door interlocking shaft can rotate, and earthed switch can be operated; The lock pin at interlocking shaft rear portion, back door also rotates along with axle, enters lock-out state, and the back door is pinned.
Claims (1)
1. a Medium Voltage Switchgear earthed switch and back door interlocking device, it is characterized in that: comprise one and cabinet door frame (1) vertically disposed back door interlocking shaft (2), be with a guide pin bushing (3) that can move forward and backward along back door interlocking shaft (2) on the back door interlocking shaft (2), be fixedly connected with two guide pillars (4) that be arranged in parallel with guide pin bushing (3) on the guide pin bushing (3), the end of described two guide pillars (4) is positioned at two guide holes of cabinet door frame (1); Be set with a check ring (5) on the described back door interlocking shaft (2), be provided with stage clip (6) between guide pin bushing (3) rear end and the check ring (5), the end of described guide pin bushing (3) is provided with a draw-in groove (7), back door interlocking shaft (2) is provided with a bayonet lock (8), can make bayonet lock (8) just in time be positioned at draw-in groove (7) when guide pillar (4) moves to cabinet door frame (1) end; The end of described back door interlocking shaft (2) also has a lock pin (9) that be arranged in parallel with bayonet lock (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206529 CN203218127U (en) | 2013-04-23 | 2013-04-23 | Earthing switch and back-door interlocking mechanism for medium-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206529 CN203218127U (en) | 2013-04-23 | 2013-04-23 | Earthing switch and back-door interlocking mechanism for medium-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218127U true CN203218127U (en) | 2013-09-25 |
Family
ID=49207640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320206529 Expired - Fee Related CN203218127U (en) | 2013-04-23 | 2013-04-23 | Earthing switch and back-door interlocking mechanism for medium-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203218127U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227063A (en) * | 2013-04-23 | 2013-07-31 | 镇江大全伊顿电器有限公司 | Interlocking mechanism for ground switch and back door of medium-voltage switch cabinet |
| CN103971960A (en) * | 2014-04-25 | 2014-08-06 | 浙江高压开关厂有限公司 | Solid insulation ring main unit |
| CN114141552A (en) * | 2021-10-26 | 2022-03-04 | 武汉高德红外股份有限公司 | Low-cost microminiature light repeated mechanical latching switch |
-
2013
- 2013-04-23 CN CN 201320206529 patent/CN203218127U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103227063A (en) * | 2013-04-23 | 2013-07-31 | 镇江大全伊顿电器有限公司 | Interlocking mechanism for ground switch and back door of medium-voltage switch cabinet |
| CN103971960A (en) * | 2014-04-25 | 2014-08-06 | 浙江高压开关厂有限公司 | Solid insulation ring main unit |
| CN103971960B (en) * | 2014-04-25 | 2015-11-18 | 浙江高压开关厂有限公司 | Solid insulation ring main unit |
| CN114141552A (en) * | 2021-10-26 | 2022-03-04 | 武汉高德红外股份有限公司 | Low-cost microminiature light repeated mechanical latching switch |
| CN114141552B (en) * | 2021-10-26 | 2024-03-19 | 武汉高德红外股份有限公司 | Miniature light repeated mechanical locking switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203218127U (en) | Earthing switch and back-door interlocking mechanism for medium-voltage switch cabinet | |
| CN105591309A (en) | Intelligent KYN28A-12 armored middle metal-enclosed switch equipment | |
| CN107359534B (en) | Valve interlocking device special for SF6 circuit breaker | |
| CN203601566U (en) | Extraction releasing device | |
| CN201594706U (en) | Switch cabinet flexible door mechanism | |
| CN201327780Y (en) | Mechanical interlocking device of grounding switch in switch cabinet | |
| CN203179729U (en) | Interlocking mechanism of grounding switch and cable chamber door of switch cabinet | |
| CN201336239Y (en) | Error-preventive operation interlocking mechanism for grounding switch | |
| CN103227063A (en) | Interlocking mechanism for ground switch and back door of medium-voltage switch cabinet | |
| CN103227062A (en) | Interlocking mechanism for ground switch and front lower door of medium-voltage switch cabinet | |
| CN202121214U (en) | Upper and lower door interlocking device | |
| CN202443883U (en) | High voltage capacitor cabinet interlocking protection device | |
| CN204966370U (en) | High voltage isolator operating device | |
| CN203406548U (en) | Valve blocking mechanism | |
| CN203910710U (en) | Switching-closing button locking mechanism | |
| CN204011145U (en) | A kind of flame-proof switch door latch apparatus | |
| CN203966875U (en) | Mining intrinsic safety type crashstop closedown switch | |
| CN206806230U (en) | Grounding interlocking device | |
| CN102751118B (en) | Lower door interlocking mechanism for switch cabinet | |
| CN203428708U (en) | Elevator floor safety sliding door | |
| CN203175596U (en) | Air door locking device | |
| CN202347960U (en) | Safety protection interlocking device used on electric appliance cabinet | |
| CN205406340U (en) | Dual -power switch cabinet interlock | |
| CN206490352U (en) | A kind of movable door mechanism interlocking device | |
| CN104733214B (en) | Interlocking mechanism used for high-voltage switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20150423 |
|
| EXPY | Termination of patent right or utility model |