CN213920683U

CN213920683U - Air valve box for pantograph lifting

Info

Publication number: CN213920683U
Application number: CN202022949995.XU
Authority: CN
Inventors: 何磊; 罗明; 李志�; 姜天骥
Original assignee: TIANYI INDUSTRY Co Ltd HUNAN RAILWAY PROFESSIONAL TECHNOLOGY COLLEGE
Current assignee: TIANYI INDUSTRY Co Ltd HUNAN RAILWAY PROFESSIONAL TECHNOLOGY COLLEGE
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-08-10
Anticipated expiration: 2030-12-11

Abstract

The utility model provides a pantograph rises air valve box for bow, be provided with the pipeline in the box, install air inlet, gas outlet and connector socket on the box outer wall, the intercommunication has air inlet, check valve one, relief pressure valve, rises bow electro-pneumatic valve, pantograph valve plate and gas outlet on the pipeline in proper order. Install the card bar lock and touch switch on the chamber door of air valve case, the rotation control of card bar lock key touches the opening and shutting of switch, the utility model discloses technical scheme, it is closed with card bar lock key control touch switch earlier, the button of rethread operation panel gives the electricity, switches on the electro-pneumatic valve, and air compressor machine compressed air inserts the pantograph gasbag through check valve, relief pressure valve, lift bow electro-pneumatic valve and lift bow valve plate after, and the drive pantograph goes up and down, has avoided because the risk that non-staff's mistake touched and rises the bow button and bring, has guaranteed electric locomotive head operating personnel, maintenance nursing staff's safety.

Description

Air valve box for pantograph lifting

Technical Field

The utility model relates to a pneumatic valve case technical field, more specifically relates to a pneumatic valve case is used to pantograph lift bow.

Background

In the air path of the pantograph lifting of the electric locomotive, the pantograph lifting electro-pneumatic valve controls the on-off of the air path for pantograph lifting. After the pantograph lifting contact with the power grid, the locomotive of the electric locomotive is electrified. The control console of the electric locomotive head is provided with a button for controlling the on-off of the pantograph lifting electro-pneumatic valve, if someone touches the button carelessly or operates by mistake, the pantograph lifting electro-pneumatic valve is electrified, the pantograph will lift the pantograph and contact the power grid, and if the electric locomotive is overhauled at the moment, an overhaul worker can have the danger of electric shock.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a pantograph rises air valve box that simple structure, stability, ability prevent mistake and open.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a pantograph rises air valve box for bow, includes the box, be provided with the pipeline in the box, install air inlet, gas outlet and connector socket on the box outer wall, communicate in proper order on the pipeline has air inlet, check valve one, relief pressure valve, rises bow electro-pneumatic valve, pantograph valve plate and gas outlet.

The pantograph valve plate belongs to a pantograph self-contained accessory.

Preferably, a three-way joint is communicated between the air inlet and the first check valve, one outlet of the three-way joint is connected with the first check valve, the other outlet of the three-way joint is connected with a second check valve, and the second check valve is communicated with the main circuit breaker through a pipeline.

The main circuit breaker is a main switch used for switching on and off a power supply of the electric locomotive and the electric motor train unit, when the pantograph rises and contacts a power grid, the main circuit breaker is switched on to electrify a main circuit of the locomotive, and the main circuit breaker can be rapidly switched off when the main circuit has faults of short circuit, grounding and the like, so that a protection effect is achieved. The utility model discloses set up check valve two and pipeline and be main circuit breaker air feed, provide the air supply for opening and shutting of main circuit breaker.

Compressed air of the air compressor enters the air valve box through the air inlet, and is divided into two paths to supply air to the pantograph and the main circuit breaker through the one-way valves respectively.

Air supply of the bow lifting branch: compressed air of the air compressor passes through the one-way valve, the pressure reducing valve, the pantograph lifting electro-pneumatic valve and the pantograph valve plate and then is connected into the pantograph air bag to drive the pantograph to lift.

Main breaker air feed: compressed air of the air compressor directly supplies to the main circuit breaker after passing through the one-way valve.

Preferably, an electric contact pressure gauge is respectively communicated between the pressure reducing valve and the pantograph ascending electro-pneumatic valve and at an inlet of the one-way valve.

In order to avoid accidental pantograph lowering caused by insufficient air pressure of compressed air, two electric contact pressure gauges are arranged in the air valve box and used for feeding back air pressure output by the pantograph lifting branch air compressor and an air pressure signal which is reduced by the pressure reducing valve and then is sent to the console through the pantograph lifting electro-pneumatic valve.

Preferably, a truck lock and a touch switch are mounted on a box door of the air valve box, the truck lock is provided with a cam, a contact and a pressure lever are arranged on the touch switch, the pressure lever is in contact with the contact, and the cam is connected with the shifting piece; the key of the truck lock is rotated, and the shifting piece is contacted with the pressure rod to push the pressure rod to rotate; the pantograph ascending electro-pneumatic valve, the touch switch and the connector socket are connected in series through a cable.

The key of the truck lock is rotated, the cam of the truck lock rotates, the cam rotates to drive the shifting piece to rotate, the shifting piece props against the pressure rod, the contact is pressed down, and the touch switch is closed. When the operation table is electrified, the pantograph lifting electro-pneumatic valve is electrified and closed, and air compressed by the air compressor passes through the one-way valve, the pressure reducing valve, the pantograph lifting electromagnetic valve and the pantograph lifting valve plate and then is connected into the pantograph air bag to drive the pantograph to lift; the utility model discloses technical scheme will make the pantograph rise the bow, makes the truck lock in the position of "opening" with the truck lock key earlier, and the circular telegram is pressed the button to the rising on the rethread control cabinet. Through two-step operation, the risk brought by the misoperation of the button by non-working personnel is avoided.

Further preferably, the cam is welded to the paddle.

Preferably, the kabob lock and the touch switch are arranged on the inner side of the box door, and the key hole of the kabob lock is arranged on the outer side of the box door.

Further preferably, the door lock further comprises a lock box, the lock box is arranged on the inner side of the door, the bayonet lock is arranged in the lock box, the touch switch is fixed on the side face of the lock box, the pressure lever and the contact of the touch switch are arranged in the lock box, and other parts of the touch switch are arranged outside the lock box.

Further preferably, the clamping device further comprises a support, the support is fixed in the lock box, and the clamping lock is installed in the lock box through the support.

The utility model discloses following beneficial effect has:

pantograph rises air valve case of bow sets up unidirectional valve, relief pressure valve, the electro-pneumatic valve of rising bow and pantograph valve plate in the box, and simple structure is compact, wherein rises the break-make of bow electro-pneumatic valve control rising bow gas circuit. Furthermore, a truck lock and a touch switch are installed on a box door of the air valve box, the rotation of a truck lock key drives the touch switch to be opened and closed, the truck lock is located at an opening position by an operator firstly through the truck lock key, then a pantograph lifting button on a control console is electrified, the pantograph lifting electro-pneumatic valve is electrified through two steps of operation, an air circuit is connected, pantograph lifting is completed, the risk caused by misoperation of the button by non-working personnel is avoided, and the safety of the electric locomotive head operator and maintenance nursing personnel is ensured.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of a gas valve box structure.

Fig. 2 is a schematic view of the connection of the snap lock and the trigger switch.

Fig. 3 is a perspective view of the connection of the snap lock and the trigger switch.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Example 1

The embodiment provides a pantograph rises air valve box for bow, including the box, as shown in fig. 1, be provided with the pipeline in the box, install air inlet 1, gas outlet 2 and connector socket 3 on the box outer wall, the intercommunication has air inlet 1, check valve 4, relief pressure valve 5, rises bow electro-pneumatic valve 6, pantograph valve plate 7 and gas outlet 2 on the pipeline in proper order. The piping in fig. 1 has a portion in which a hose is provided, and the hose is not shown.

A three-way joint 8 is communicated between the air inlet 1 and the first check valve 4, one outlet of the three-way joint 8 is connected with the first check valve 4, the other outlet of the three-way joint 8 is connected with a second check valve 9, and the second check valve 9 is communicated with the main circuit breaker through a pipeline.

A joint 14 of an electric contact pressure gauge 10 is communicated between the pressure reducing valve 5 and the pantograph ascending electro-pneumatic valve 6. And the inlet of the first check valve 4 is communicated with a joint 15 of an electric contact pressure gauge 11. The electric contact pressure gauge 10 and the electric contact pressure gauge 11 are arranged on the box body,

a truck lock 12 and a touch switch 13 are installed on a door of the air valve box, the truck lock 12 is provided with a cam 121, the touch switch 13 is provided with a contact 131 and a pressure lever 132, the pressure lever 132 is in contact with the contact 131, and the cam 121 is connected with a shifting piece 16; when the truck lock 12 is in the "on" position, the shifting piece 16 and the pressure lever 132 touch and push the pressure lever 132 to press the contact 131 downwards, and the trigger switch 13 is closed; the pantograph ascending electro-pneumatic valve 6, the touch switch 13 and the connector socket 3 are connected in series through a cable.

The cam 121 is welded to the paddle 16.

As shown in fig. 1, the kabob lock 12 and the trigger switch 13 are installed on the inner side of the box door, and the key hole of the kabob lock 12 is arranged on the outer side of the box door.

The multifunctional safe door lock further comprises a lock box 17, the lock box 17 is arranged on the inner side of the door, the kabob lock 12 is arranged in the lock box 17, as shown in fig. 3, the trigger switch 13 is fixed on the side surface of the lock box 17, the pressure lever 132 and the contact 131 of the trigger switch 13 are arranged in the lock box 17, and other parts of the trigger switch 13 are arranged outside the lock box 17.

The multifunctional card bar lock further comprises a support 18, the support 18 is fixed in the lock box 17, and the card bar lock 12 is installed in the lock box 17 through the support 18.

This embodiment the break-make of air valve box control pantograph gas circuit and the air feed for main circuit breaker, for avoiding compressed air atmospheric pressure not enough to arouse unexpected bow that falls, set up two electric contact pressure meters in the air valve box for the feedback rises bow branch air compressor machine output atmospheric pressure and gives the control cabinet through the atmospheric pressure signal that rises bow electro-pneumatic valve after the relief pressure valve decompression. In order to avoid misoperation, a Baba lock 12 and a touch switch 13 are arranged on the door of the air valve box. The air valve box has the advantages of simple structure, stability and safety, and accords with actual working conditions.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a pantograph rises air valve box for bow, includes the box, its characterized in that, be provided with the pipeline in the box, install air inlet, gas outlet and connector socket on the box outer wall, communicate in proper order on the pipeline has air inlet, check valve one, relief pressure valve, rises bow electro-pneumatic valve, pantograph valve plate and gas outlet.

2. The air valve box for pantograph lifting of claim 1, wherein a three-way joint is communicated between the air inlet and the first one-way valve, one outlet of the three-way joint is connected with the first one-way valve, the other outlet of the three-way joint is connected with the second one-way valve, and the second one-way valve is communicated with the main circuit breaker through a pipeline.

3. The air valve box for pantograph lifting of claim 1, wherein an electric contact pressure gauge is connected between said pressure reducing valve and said pantograph lifting electro-pneumatic valve and at an inlet of said check valve.

4. The air valve box for lifting a pantograph according to any one of claims 1 to 3, wherein a door of the air valve box is provided with a truck lock and a trigger switch, the truck lock is provided with a cam, the trigger switch is provided with a contact and a pressure lever, the pressure lever is in contact with the contact, and the cam is connected with a shifting piece; when the truck lock is in an 'open' position, the shifting piece is in contact with the pressure rod to push the pressure rod to press down to prop against the contact, and the touch switch is closed; the pantograph ascending electro-pneumatic valve, the touch switch and the connector socket are connected in series through a cable.

5. The air valve box for lifting a pantograph according to claim 4, wherein said pick is welded to said latch cam.

6. The air valve box for pantograph lifting of claim 4, wherein the said strap lock and the trigger switch are installed inside the box door, and the key hole of the strap lock is placed outside the box door.

7. The air valve box for lifting pantograph according to claim 6, further comprising a lock box installed inside the box door, wherein the latch lock is installed inside the lock box, the trigger switch is fixed to a side surface of the lock box, the pressing rod and the contact of the trigger switch are disposed inside the lock box, and other portions of the trigger switch are disposed outside the lock box.

8. The air valve box for a pantograph lifting of claim 7, further comprising a bracket welded into said lock box, said bail latch being mounted in said lock box by said bracket.