Pantograph control valve plate

Abstract

The utility model relates to rail transit, and discloses a pantograph control valve plate which comprises an installation plate, an electromagnetic valve is installed on the installation plate and vertically fixed to the installation plate, the air inlet end of the electromagnetic valve is communicated with an air filter, a first pressure switch is installed on the right side of the electromagnetic valve, a second pressure switch is installed below the electromagnetic valve, and the first pressure switch and the second pressure switch are communicated with the air filter. The first pressure switch and the second pressure switch are connected in parallel and share a gas path interface, two outlets of the electromagnetic valve are respectively connected with a first throttle valve and a second throttle valve, an outlet of the first throttle valve is connected with a first precise pressure reducing valve, and an outlet of the second throttle valve is connected with a second precise pressure reducing valve. The first throttling valve and the second throttling valve are both perpendicular to the electromagnetic valve, and an outlet of the first precise pressure reducing valve and an outlet of the second precise pressure reducing valve are connected through a shuttle valve. The pantograph control valve is applied to a double-flow type vehicle and is very convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to rail transportation, in particular to a pantograph control valve plate. Background Art

[0002] Now, for the suburbs far from the city, when considering rail transit, a dual-current power supply method is adopted, that is, AC power supply is used in the suburbs and DC power supply is used in the city. The redesign of the pantograph is inevitable, but in order to match the pantograph action that can draw power from both AC and DC contact networks, the vehicle is equipped with a pantograph control valve group, which adjusts the pantograph contact force, pantograph raising and lowering time and other technical parameters through the pantograph control valve group, so as to ensure the current collection quality of the electric locomotive.

[0003] The pantograph control valve group is assembled on the mounting plate to form the pantograph control valve plate. Since the distance between the contact network and the vehicle body in the DC contact network section is smaller than that in the AC contact network section, when designing the pantograph control valve plate, it is necessary not only to consider the layout of a large number of control devices, but also to consider the convenience of installation and maintenance of the solenoid valve group. Utility Model Content

[0004] The utility model aims to provide a pantograph control valve plate to solve the problem of convenience in installation and maintenance of a pantograph control valve on a dual-flow vehicle.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pantograph control valve plate, comprising a mounting plate, the mounting plate is in a rectangular shape, a solenoid valve for switching the air path is installed on the mounting plate, the solenoid valve is in a long strip shape and is vertically fixed on the mounting plate in the direction of the width of the mounting plate, the air inlet end of the solenoid valve is connected to an air filter, the air inlet of the air filter is at most 20 mm away from the edge of the mounting plate, a first pressure switch is installed on the right side of the solenoid valve, a second pressure switch is installed below the solenoid valve, the first pressure switch and the second pressure switch are connected in parallel and share an air path interface, the two outlets of the solenoid valve are respectively connected to the first throttle valve and the second throttle valve, the first The throttle valve outlet is connected to the first precision pressure reducing valve, and the second throttle valve outlet is connected to the second precision pressure reducing valve. The first throttle valve and the second throttle valve are both perpendicular to the solenoid valve. The first throttle valve inlet is connected to the third pressure switch in parallel with it. The installation position of the third pressure switch is between the first throttle valve and the second throttle valve, and the length of the third pressure switch is smaller than the distance between the first throttle valve and the second throttle valve. The first precision pressure reducing valve and the second precision pressure reducing valve outlets are connected through a shuttle valve, and the shuttle valve is installed parallel to the solenoid valve. The outlet of the shuttle valve is connected to the third throttle valve and a pressure gauge in sequence. The pressure gauge is installed parallel to the solenoid valve and is at most 20 mm away from the edge of the mounting plate.

[0006] The principle and advantage of this solution is: to concentrate the components of the entire air pressure control circuit on a mounting plate, and to use as few air pipe connections as possible in the device. This solution first uses the solenoid valve that switches the air circuit as the reference point, so that its input and output components can be reasonably arranged on the mounting plate. The mounting plate will be fixed in the vehicle body as a whole. When installing and repairing, you only need to take out the mounting plate and replace or adjust the components on the mounting plate. The mounting plate is used as a fixed template size. When a gas circuit failure occurs, if you cannot find out which component on the mounting plate has a problem in time, you can directly replace the entire mounting plate to achieve the purpose of modular installation.

[0007] As an improvement, the mounting plate is a stainless steel plate with a length less than 600 mm and a width less than 400 mm.

[0008] The beneficial effect of this improvement is that, in view of the limited installation position of the rail vehicle, the limitation on the size of the area occupied by the installation plate can ensure that the installation plate fits the installation position reserved for the rail vehicle.

[0009] As an improvement, the mounting plate is provided with integrally formed clips on both sides thereof, and corresponding clip grooves or clip edges are provided at the rail vehicle mounting position. The clips on both sides of the mounting plate can be directly clipped into the reserved mounting positions, making the installation convenient and quick.

[0010] As an improvement, a grounding bolt is provided on the mounting plate, and the grounding bolt can be used as grounding protection for electrical components on the mounting plate.

[0011] As an improvement, a handle is provided on the surface of the mounting plate for facilitating installation; when it is necessary to take out or put into the reserved position for rail vehicle installation, the mounting plate can be transferred as a whole by the handle.

[0012] As an improvement, the height of the components used on the mounting plate is less than 180 mm. Due to the limitation of the installation position in the rail vehicle, the height of the components on the mounting plate should be less than 180 mm so that the top of the mounting plate can be completely covered for sealing installation.

[0013] As an improvement, the first precision pressure reducing valve, the second precision pressure reducing valve and the mounting plate are connected to the mounting plate via a socket respectively. The socket is C-shaped, and the open end of the socket is used for the precision pressure reducing valve to pass through. A slot is provided above the socket for allowing the operating vortex of the precision pressure reducing valve to pass through.

[0014] The beneficial effect of this improvement is that since there is a lack of components for installing the precision pressure reducing valve on the mounting plate, a mounting seat needs to be specially designed for the precision pressure reducing valve to meet the installation requirements of the precision pressure reducing valve.

[0015] As an improvement, the solenoid valve is a two-position three-way valve; the two-position three-way valve not only meets the length requirements of the installation position, but also can meet the switching of the two outlet gas paths. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the pantograph control valve plate structure of an embodiment of the utility model.

[0017] Figure 2 for Figure 1 Front view of . DETAILED DESCRIPTION

[0018] The following is further explained in detail through a specific implementation method. The figure marks in the drawings of the specification include: a mounting plate 1, a solenoid valve 2, an air filter 3, a first pressure switch 4, a second pressure switch 5, a first throttle valve 6, a second throttle valve 61, a third pressure switch 7, a first precision pressure reducing valve 8, a second precision pressure reducing valve 9, a holder 10, a handle 11, a shuttle valve 12, a grounding bolt 13, a third throttle valve 14, a terminal block 15, a pressure gauge 16, and a clamping strip 17.

[0019] As attached Figure 1 and Figure 2 The pantograph control valve plate shown includes a mounting plate 1, which is a stainless steel plate with a length less than 600 mm and a width less than 400 mm.

[0020] A solenoid valve 2 for switching the air path is installed on the mounting plate 1. The solenoid valve 2 is in the shape of a long strip and is vertically fixed on the mounting plate 1 in the direction of the width of the mounting plate 1. The air inlet end of the solenoid valve 2 is connected to an air filter 3. The air inlet of the air filter 3 is at most 20 mm away from the edge of the mounting plate 1.

[0021] The solenoid valve 2 is a two-position three-way valve. A first pressure switch 4 is installed on the right side of the solenoid valve 2, and a second pressure switch 5 is installed below the solenoid valve 2. The first pressure switch 4 and the second pressure switch 5 are connected in parallel and share a gas circuit interface. The two outlets of the solenoid valve 2 are respectively connected to the first throttle valve 6 and the second throttle valve 61. The outlet of the first throttle valve 6 is connected to the first precision pressure reducing valve 8, and the outlet of the second throttle valve 61 is connected to the second precision pressure reducing valve 9. The first throttle valve 6 and the second throttle valve 61 are both perpendicular to the solenoid valve 2. The inlet of the first throttle valve 6 is connected in parallel with the third pressure switch 7. The installation position of the third pressure switch 7 is between the first throttle valve 6 and the second throttle valve 61, and the length of the third pressure switch 7 is less than the distance between the first throttle valve 6 and the second throttle valve 61.

[0022] The outlets of the first precision pressure reducing valve 8 and the second precision pressure reducing valve 9 are connected through a shuttle valve 12. The shuttle valve 12 is installed parallel to the solenoid valve 2. The outlet of the shuttle valve 12 is connected to the third throttle valve 14 and the pressure gauge 16 in sequence. The pressure gauge 16 is installed parallel to the solenoid valve 2 and is at most 20 mm away from the edge of the mounting plate 1.

[0023] The components of the entire air pressure control circuit are concentrated in a mounting plate 1, and as few air pipe connections as possible are used in the device. This solution first uses the solenoid valve 2 that switches the air circuit as the reference point, so that its input and output components can be reasonably arranged on the mounting plate 1. The mounting plate 1 will be fixed in the vehicle body as a whole. When installing and repairing, you only need to take out the mounting plate 1 and replace or adjust the components on the mounting plate 1. The mounting plate 1 is used as a fixed template size. When a gas circuit failure occurs, if it is impossible to find out which component on the mounting plate 1 has a problem in time, the entire mounting plate 1 can be directly replaced to achieve the purpose of modular installation.

[0024] The height L of the device used on the mounting plate 1 is less than 180 mm. Due to the installation position limitation in the rail vehicle, the height L of the device on the mounting plate 1 should be less than 180 mm so that the top of the mounting plate 1 can be completely sealed for installation.

[0025] The mounting plate 1 is provided with integrally formed clamping strips 17 on both sides of its width, and corresponding clamping grooves or clamping edges are provided at the rail vehicle mounting position, so that the clamping strips 17 on both sides of the mounting plate can be directly clamped in the reserved mounting position, making the installation convenient and quick.

[0026] A grounding bolt 13 is provided on the mounting plate 1 , and the grounding bolt 13 can be used as grounding protection for electrical components on the mounting plate 1 .

[0027] The surface of the mounting plate 1 is provided with a handle 11 for easy installation; when it is necessary to take out or put into the reserved position for rail vehicle installation, the mounting plate 1 can be transferred as a whole by the handle 11 .

[0028] The mounting plate 2 lacks components for mounting the precision pressure reducing valve, and a mounting seat needs to be specially designed for the precision pressure reducing valve to meet the installation requirements of the precision pressure reducing valve. The first precision pressure reducing valve 8 and the second precision pressure reducing valve 9 are connected to the mounting plate 1 through a clamping seat 10, respectively. The clamping seat 10 is C-shaped, and the opening end of the clamping seat 10 is used for the precision pressure reducing valve to pass through. A clamping groove is provided above the clamping seat 10 for the operating swirl of the precision pressure reducing valve to pass through.

[0029] The mounting plate 1 is also provided with a terminal block 15 at a blank position thereof for arranging the electrical control circuits of the valves. The circuits are more beautiful through the uniform arrangement of the terminal block 15 .

[0030] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Pantograph control valve plate, characterized by: It includes a mounting plate, which is rectangular, on which a solenoid valve for switching the air path is installed, the solenoid valve is long and strip-shaped and is vertically fixed on the mounting plate in the direction of the mounting plate width, the air inlet end of the solenoid valve is connected to an air filter, the air inlet of the air filter is at most 20 mm away from the edge of the mounting plate, a first pressure switch is installed on the right side of the solenoid valve, a second pressure switch is installed below the solenoid valve, the first pressure switch and the second pressure switch are connected in parallel and share an air path interface, the two outlets of the solenoid valve are respectively connected to a first throttle valve and a second throttle valve, and the outlet of the first throttle valve is connected to a first precision pressure reducing valve The outlet of the second throttle valve is connected to a second precision pressure reducing valve, the first throttle valve and the second throttle valve are both perpendicular to the solenoid valve, the inlet of the first throttle valve is connected in parallel with a third pressure switch, the installation position of the third pressure switch is between the first throttle valve and the second throttle valve, and the length of the third pressure switch is smaller than the distance between the first throttle valve and the second throttle valve, the outlets of the first precision pressure reducing valve and the second precision pressure reducing valve are connected through a shuttle valve, the shuttle valve is installed parallel to the solenoid valve, the outlet of the shuttle valve is connected in sequence with the third throttle valve and a pressure gauge, the pressure gauge is installed parallel to the solenoid valve and is at most 20 mm away from the edge of the mounting plate.

2. The pantograph control valve plate according to claim 1, characterized in that: The mounting plate is a stainless steel plate with a length less than 600 mm and a width less than 400 mm.

3. The pantograph control valve plate according to claim 2, characterized in that: Integrally formed clamping strips are arranged on both sides of the width of the mounting plate.

4. The pantograph control valve plate according to claim 3, characterized in that: A grounding bolt is arranged on the mounting plate.

5. The pantograph control valve plate according to claim 4, characterized in that: A handle is provided on the surface of the installation plate for facilitating installation.

6. The pantograph control valve plate according to claim 5, characterized in that: The height of the components used on the mounting plate is less than 180 mm.

7. The pantograph control valve plate according to claim 6, characterized in that: The first precision pressure reducing valve, the second precision pressure reducing valve and the mounting plate are connected to the mounting plate via a socket respectively. The socket is C-shaped, and the open end of the socket is used for the precision pressure reducing valve to pass through. A slot is provided above the socket for allowing the operating vortex of the precision pressure reducing valve to pass through.

8. The pantograph control valve plate according to claim 7, characterized in that: The solenoid valve is a two-position three-way valve.

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