CN212968803U - Valve locking device of switch cabinet - Google Patents
Valve locking device of switch cabinet Download PDFInfo
- Publication number
- CN212968803U CN212968803U CN202021721573.0U CN202021721573U CN212968803U CN 212968803 U CN212968803 U CN 212968803U CN 202021721573 U CN202021721573 U CN 202021721573U CN 212968803 U CN212968803 U CN 212968803U
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- crank arm
- fixing pin
- valve
- fixed
- angle steel
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Abstract
The utility model discloses a switch cabinet valve locking device, which comprises a transverse rod and a longitudinal rod, wherein the transverse rod is connected with the longitudinal rod through an upper crank arm, the upper crank arm is fixed on the side wall of a switch cabinet through an upper fixing pin, and the upper crank arm can rotate around the upper fixing pin; the transverse rod is fixed through the clamping seat and can move relative to the clamping seat; the other end of the longitudinal rod is connected with a lower crank arm, the lower crank arm is fixed on the side wall of the switch cabinet through a lower fixing pin, and the lower crank arm can rotate around the lower fixing pin; the angle steel is fixed on the side edge of the circuit breaker, the angle steel and the lower crank arm are arranged on the same horizontal line, and at least one section of gradient is arranged on the side, close to the lower crank arm, of the angle steel. The valve locking device can automatically lock the valve positioning pin when the circuit breaker handcart is pulled out, so that the valve is ensured to be locked, and the aim of preventing the valve from being opened by mistake by an overhaul worker is fulfilled.
Description
Technical Field
The utility model relates to a mechanical threshold device especially relates to a threshold device of electrical switch cabinet valve.
Background
In order to meet one of the five-prevention requirements, a pair of locking lugs is preassembled on an upper valve and a lower valve of the conventional electrical switch cabinet, and after a handcart of the circuit breaker is pulled out, a safety lock needs to be hung on the locking lugs manually so as to prevent an electric shock accident caused by the fact that a maintainer mistakenly opens the valve to touch or approach an upper static contact and a lower static contact of an electrified body of the switch cabinet. The protection mode needs to manually hang the safety lock on the valve lock lug, so that the working procedures are increased, and the possibility of forgetting to hang the safety lock exists. If the operation of hanging the safety lock is omitted, the risk that the maintenance personnel mistakenly open the valve to touch or approach the upper and lower static contacts of the electrified body of the switch cabinet to cause electric shock accidents can be caused.
Disclosure of Invention
The utility model aims to solve the technical problem that the electric switch cabinet realizes the locking to the electric valve when the circuit breaker is pulled out, avoids the electric valve to be opened by mistake.
In order to solve the technical problem, the switch cabinet valve locking device comprises a transverse rod and a longitudinal rod, wherein the transverse rod is connected with the longitudinal rod through an upper connecting lever, the upper connecting lever is fixed on the side wall of a switch cabinet through an upper fixing pin, and the upper connecting lever can rotate around the upper fixing pin; the transverse rod is fixed through the clamping seat and can move relative to the clamping seat; the other end of the longitudinal rod is connected with a lower crank arm, the lower crank arm is fixed on the side wall of the switch cabinet through a lower fixing pin, and the lower crank arm can rotate around the lower fixing pin; the angle steel is fixed on the side edge of the circuit breaker, the angle steel and the lower crank arm are arranged on the same horizontal line, and at least one section of gradient is arranged on the side, close to the lower crank arm, of the angle steel.
According to the further optimization scheme of the technical scheme, the other end of the lower crank arm is provided with the roller.
According to the further optimization scheme of the technical scheme, the arc-shaped baffle is arranged at the end part of the angle steel.
According to a further optimization scheme of the technical scheme, the upper crank arm and the lower crank arm are both L-shaped or V-shaped crank arms.
According to a further optimization scheme of the technical scheme, the upper crank arm and the lower crank arm are arranged in the same direction.
The cubical switchboard valve blocking device of this scheme can block the valve locating pin automatically when the circuit breaker handcart is pulled out, ensures that the valve is died by the lock, reaches the purpose that prevents maintainer mistake opening valve.
Drawings
Fig. 1 is a view showing a shutter locking state.
Fig. 2 is a structural view of the valve in an unlocked state.
Figure 3 front view of angle iron.
Detailed Description
Referring to fig. 1 to 3, the locking device for the valve of the switch cabinet comprises a transverse rod 1, wherein the transverse rod is fixed through a clamping seat 9, and the clamping seat 9 is fixed on the side wall of the electrical cabinet. The transverse bar 1 can be moved on the cassette 9.
One end of the transverse rod 1 faces the valve locking positioning pin 71, and the other end of the transverse rod 1 is connected with one end of the upper crank arm 3.
The other end of the upper crank arm 3 is connected with the longitudinal rod 2, the corner of the upper crank arm 3 is movably fixed through an upper fixing pin 31, and the upper crank arm 3 can rotate through the upper fixing pin 31.
The other end of the longitudinal rod 2 is connected with one end of a lower crank arm 4, a roller 42 is arranged at the other end of the lower crank arm 4, the corner of the lower crank arm 4 is movably fixed through a lower fixing pin 41, and the upper crank arm 4 can rotate through the lower fixing pin 41.
The folding openings of the upper crank arm 3 and the lower crank arm 4 are both arranged upwards.
The upper crank arm 3, the transverse rod 1 and the longitudinal rod 2 can move relatively, and the longitudinal rod 2 and the lower crank arm 4 can also move relatively.
Roller 42 and angle steel 5 set up on same water flat line, and angle steel 5 is fixed on 8 lateral walls of circuit breaker, and the tip of angle steel is provided with cowl 51, and cowl 51 is a little higher than roller 42, and angle steel 5 is a little lower than roller 42.
The working principle of the valve locking device is as follows: when the circuit breaker handcart pushes the cabinet body, the angle steel 5 arranged on the side wall of the circuit breaker 8 presses the roller end of the lower crank arm to move horizontally on the angle steel 5 finally through the end arc-shaped baffle 51, and the other end of the lower crank arm moves downwards and drives the longitudinal rod 2 to move downwards under the limiting action of the lower fixing pin 41. The longitudinal rod 2 drives one side of the upper crank arm 3 to move downwards, and under the limiting action of the upper fixing pin 31, the other side of the upper crank arm 3 moves transversely to drive the transverse rod 1 to move transversely, so that the end part of the transverse rod 1 positioned on the upper side or the lower side of the valve locking positioning pin 71 is separated from the valve locking positioning pin 71, and the valve connecting rod 6 can open the valve 7. When the circuit breaker handcart is pulled out of the cabinet body, the roller 42 withdraws from the angle steel 5, the lower crank arm 4 resets, the longitudinal rod 2 moves upwards, the upper crank arm 3 resets to drive the transverse rod 1 to reset, the end part of the transverse rod 1 is clamped on the upper side or the lower side of the valve locking positioning pin 71, and the valve 7 is locked.
The valve locking device of the scheme is respectively provided with a group at two sides of the switch cabinet.
Claims (5)
1. Cubical switchboard valve blocking device, its characterized in that: the upper crank arm is fixed on the side wall of the switch cabinet through an upper fixing pin and can rotate around the upper fixing pin; the transverse rod is fixed through the clamping seat and can move relative to the clamping seat; the other end of the longitudinal rod is connected with a lower crank arm, the lower crank arm is fixed on the side wall of the switch cabinet through a lower fixing pin, and the lower crank arm can rotate around the lower fixing pin; the angle steel is fixed on the side edge of the circuit breaker, the angle steel and the lower crank arm are arranged on the same horizontal line, and at least one section of gradient is arranged on the side, close to the lower crank arm, of the angle steel.
2. The switchgear cabinet shutter lockout device of claim 1 wherein: and the other end of the lower crank arm is provided with a roller.
3. The switchgear cabinet shutter lockout device of claim 1 wherein: the end part of the angle steel is provided with an arc baffle.
4. The switchgear cabinet shutter lockout device of claim 1 wherein: the upper crank arm and the lower crank arm are both L-shaped or V-shaped crank arms.
5. The switchgear cabinet shutter lockout device of claim 1 wherein: the upper crank arm and the lower crank arm are arranged in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021721573.0U CN212968803U (en) | 2020-08-17 | 2020-08-17 | Valve locking device of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021721573.0U CN212968803U (en) | 2020-08-17 | 2020-08-17 | Valve locking device of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212968803U true CN212968803U (en) | 2021-04-13 |
Family
ID=75356558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021721573.0U Active CN212968803U (en) | 2020-08-17 | 2020-08-17 | Valve locking device of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212968803U (en) |
-
2020
- 2020-08-17 CN CN202021721573.0U patent/CN212968803U/en active Active
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