Pantograph and add integrated air valve plate

Abstract

The utility model discloses a pantograph and ADD integrated air valve plate relates to pantograph control field. The utility model discloses a valve plate, filter, pantograph throttle valve, precision pressure regulating valve, pantograph throttle valve, safety valve, pressure switch, safety valve and terminal row. The filter, pantograph throttle valve, precision pressure regulating valve, pantograph throttle valve, safety valve are connected gradually and form a set of air path subassembly, and the air path subassembly rear end is connected pantograph interface, and the above components cooperate with each other, and the gas of meeting the requirement is transported to the pantograph, makes the pantograph steady work, and the solenoid valve is linked together with the ADD (automatic pantograph lowering device) through the tee joint with pressure switch.

Description

Technical Field

[0001] This utility model relates to the field of pantograph control, specifically to a pantograph and an ADD integrated air valve plate. Background Technology

[0002] In the field of rail transit, the pantograph is a crucial component for electric locomotives to obtain power from the overhead contact line, and its normal operation is essential for the stable power supply of the locomotive. The pantograph pneumatic control valve plate is a key component for controlling the pantograph's raising and lowering. Traditional pantograph pneumatic control valve plates suffer from problems such as unreasonable structural layout, low gas control accuracy, and poor reliability. Summary of the Invention

[0003] The purpose of this utility model is to provide an integrated air valve board for a pantograph and an automatic lowering device (ADD) to solve the problems of unreasonable structure, low gas control accuracy, and poor reliability of existing pantograph air circuit control valve boards. It also enhances the air circuit fault protection function by coordinating the operation of solenoid valves, pressure switches, and the ADD device to improve the response speed and safety of the pantograph air circuit system under abnormal conditions, thereby comprehensively improving the working performance and stability of the pantograph. To achieve the above objectives, this utility model adopts the following technical solution: An integrated air valve plate for a pantograph and an ADD (Augmented Receiver), characterized in that it includes a valve plate, a filter, a pantograph lifting throttle valve, a precision pressure regulating valve, a pantograph lowering throttle valve, a safety valve, a pressure switch, a solenoid valve, and a terminal block. The filter, pantograph lifting throttle valve, precision pressure regulating valve, pantograph lowering throttle valve, and safety valve are sequentially connected to form an air circuit assembly. The rear end of this air circuit assembly is connected to the pantograph interface. The above components cooperate with each other to deliver qualified gas to the pantograph, enabling the pantograph to operate smoothly. The solenoid valve and pressure switch are connected to the ADD via a three-way connector for controlling and regulating the pressure of the ADD air circuit.

[0004] Furthermore, the pantograph and ADD integrated valve plate is characterized in that: the valve plate is a galvanized sheet used for the integrated installation of various components, wherein the filter, pantograph lifting throttle valve, precision pressure regulating valve, pantograph lowering throttle valve, and safety valve are connected in sequence through movable joints.

[0005] Furthermore, the pantograph and ADD integrated air valve plate is characterized in that: the filter is used to filter the compressed air entering the air path and remove dust and impurities.

[0006] Furthermore, the pantograph and ADD integrated air valve plate is characterized in that: the pantograph lifting throttle valve is installed on the right side of the filter.

[0007] Furthermore, the pantograph and ADD integrated air valve plate described above are characterized in that: the precision pressure regulating valve is installed on the right side of the pantograph lifting throttle valve, and the precision pressure regulating valve is equipped with a pressure gauge and a first silencer, which precisely regulates the gas pressure entering the pantograph while reducing noise, and controls the pantograph lifting force through stable air pressure, thereby ensuring stable contact pressure.

[0008] Furthermore, the pantograph and ADD integrated valve plate is characterized in that: the pantograph lowering throttle valve is installed on the right side of the precision pressure regulating valve.

[0009] Furthermore, the pantograph and ADD integrated air valve plate described above are characterized in that: the safety valve is installed on the right side of the pantograph lowering throttle valve.

[0010] Furthermore, the pantograph and ADD integrated air valve plate is characterized in that: the pressure switch is installed in the second air passage of the valve plate.

[0011] Furthermore, the pantograph and ADD integrated air valve plate is characterized in that: the solenoid valve is installed in the second air path of the valve plate, the solenoid valve air path is connected to the pressure switch and ADD through a three-way connector, the line receives the electrical signal from the pressure switch through the terminal block and switches to the conducting state, and exhausts through the second muffler connected to the solenoid valve.

[0012] Furthermore, the pantograph and ADD integrated valve board is characterized in that: the terminal block adopts an anti-interference design to ensure stable power supply and accurate signal transmission.

[0013] Compared with the prior art, the advantages of this utility model are: Compact and reasonable structure: The filter, lifting throttle valve, precision pressure regulating valve, lowering throttle valve, safety valve, pressure switch and solenoid valve are integrated into one unit, reducing the complexity of air circuit connection and leakage points, and improving the reliability of air circuit system.

[0014] High safety performance: ADD uses a separate pressure switch and solenoid valve to regulate air pressure, making pressure monitoring and control response more direct and efficient, significantly improving system safety compared to traditional valve plates. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1A front view of a pantograph and ADD integrated valve plate provided by this utility model; Figure 2 A schematic diagram of the air circuit of a pantograph and an integrated air valve plate for ADD provided by this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0021] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0024] like Figure 1 As shown, an integrated air valve plate for a pantograph and ADD includes a valve plate 1, a filter 2 mounted on the valve plate 1, a pantograph lifting throttle valve 3 mounted on the valve plate 1, a precision pressure regulating valve 4 and a first silencer 42 mounted on the valve plate 1, a pantograph lowering throttle valve 5 mounted on the valve plate 1, a safety valve 6 mounted on the valve plate 1, a pressure switch 7 mounted on the valve plate 1, a solenoid valve 8 mounted on the valve plate 1 and a second silencer 82 connected to the air circuit, and a terminal block 9 mounted on the valve plate 1. The filter 2, the pantograph lifting throttle valve 3, the precision pressure regulating valve 4, the pantograph lowering throttle valve 5, and the safety valve 6 are sequentially connected to form an air circuit assembly. The rear end of this air circuit assembly is connected to the pantograph interface. The above components cooperate with each other to deliver the required gas to the pantograph, enabling the pantograph to work smoothly. The solenoid valve 8 and the pressure switch 7 are connected to the ADD through a three-way connector 81 to form a second air circuit.

[0025] It should be noted that in this embodiment, the first silencer 42 is installed on the precision pressure regulating valve (4) and is used for noise reduction of the pressure regulating valve exhaust; the second silencer 82 is installed on the solenoid valve (8) and is used for noise reduction of the ADD solenoid valve exhaust. The two are two independent components.

[0026] The working principle of this utility model is as follows: Compressed air first passes through filter 2 to remove impurities before entering the pantograph raising throttle valve 3. When the pantograph needs to be raised (i.e., airflow from left to right), compressed air enters from filter 2 and, under the control of the raising throttle valve 3, enters the precision pressure regulating valve 4 at a suitable flow rate. The precision pressure regulating valve 4 precisely adjusts the gas pressure and delivers the required gas to the pantograph, allowing it to rise smoothly. When the pantograph needs to be lowered (i.e., airflow from right to left), the compressed air in the pantograph is discharged through safety valve 6, lowering throttle valve 5, precision pressure regulating valve 4, raising throttle valve 3, and filter 2. At this time, solenoid valve 8 receives the lowering signal and switches to the conducting state to exhaust gas in a very short time, thereby achieving rapid lowering of the pantograph. Pressure switch 7 monitors and provides feedback on the ADD air circuit pressure in real time. If an abnormal increase in pressure occurs in the air circuit (such as excessive pressure in the main air circuit or excessive pressure in the ADD air circuit), exceeding the safety value set by safety valve 6, safety valve 6 automatically opens to release excess gas and ensure air circuit safety. The above process enables comprehensive and multi-level safety control and precise operation adjustment of the pantograph pneumatic circuit system.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pantograph and ADD integrated valve plate, characterized in that: The system includes a valve plate (1), a filter (2) mounted on the valve plate (1), a lifting throttle valve (3) mounted on the valve plate (1), a precision pressure regulating valve (4) mounted on the valve plate (1), a lowering throttle valve (5) mounted on the valve plate (1), a safety valve (6) mounted on the valve plate (1), a pressure switch (7) mounted on the valve plate (1), a solenoid valve (8) mounted on the valve plate (1), and a terminal block (9) mounted on the valve plate (1). The filter (2), lifting throttle valve (3), precision pressure regulating valve (4), lowering throttle valve (5), and safety valve (6) are connected in sequence to form a gas circuit assembly. The rear end of the gas circuit assembly is connected to the pantograph interface. The above components cooperate with each other to deliver the required gas to the pantograph, so that the pantograph can work smoothly. The solenoid valve (8) and the pressure switch (7) are connected to the ADD through a three-way connector (81) to form a second gas circuit.

2. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The valve plate (1) is a galvanized plate used to integrate and install various components, including the filter (2), the lifting bow throttle valve (3), the precision pressure regulating valve (4), the lowering bow throttle valve (5), and the safety valve (6), which are connected in sequence through the movable joint (11).

3. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The filter (2) is installed on the far left of the valve plate (1).

4. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The lifting bow throttle valve (3) is installed on the right side of the filter (2).

5. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The precision pressure regulating valve (4) is installed on the right side of the pantograph lifting throttle valve (3). The precision pressure regulating valve (4) is equipped with a pressure gauge (41) and a first silencer (42). It precisely regulates the gas pressure entering the pantograph while reducing noise. It controls the pantograph lifting force through stable gas pressure, thereby ensuring stable contact pressure.

6. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The bow-lowering throttle valve (5) is installed on the right side of the precision pressure regulating valve (4).

7. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The safety valve (6) is installed on the right side of the bow throttle valve (5).

8. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The pressure switch (7) is installed on the second air passage of the valve plate (1).

9. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The solenoid valve (8) is installed on the second air passage on the valve plate (1). The air passage of the solenoid valve (8) is connected to the pressure switch (7) and ADD through the three-way connector (81). The line receives the electrical signal from the pressure switch (7) through the terminal block (9) and switches to the conducting state. The exhaust is discharged through the second silencer (82) connected to the solenoid valve (8).

10. The pantograph and ADD integrated valve plate according to claim 1, characterized in that: The terminal block (9) is designed to prevent interference and is installed close to the solenoid valve (8).

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