Pantograph air valve plate

Abstract

The utility model belongs to the field of pantograph control, and particularly relates to a pantograph air valve plate which is mainly composed of a pantograph lifting control module, an ADD control module and a connecting piece, the pantograph lifting control module and the ADD control module are detachably connected, and the pantograph lifting control module is used for controlling and adjusting an air bag for inputting compressed air into a pantograph. The ADD control module is used for monitoring and controlling the ADD of the pantograph, when the pantograph air valve plate is used for a novel locomotive with the ADD function, the pantograph lifting control module and the ADD control module are connected into a whole through a connecting piece, and when the pantograph air valve plate is used for an old locomotive without the ADD function, the pantograph lifting control module and the ADD control module are connected into a whole through a connecting piece. According to the pantograph air valve plate, the middle connector on the pantograph lifting control module is plugged through the sealing cover, only the pantograph lifting control module is used independently, in conclusion, the pantograph air valve plate can be well suitable for a novel locomotive with the ADD function and an old-fashioned locomotive without the ADD function, and applicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of pantograph control, and in particular to a pantograph valve plate. Background Art

[0002] The pantograph system is an important system for AC and DC electric locomotives, subways and light rail vehicles. The pantograph obtains electrical energy from the high-voltage contact network and provides a power source for the vehicle's traction inverter and high-voltage equipment.

[0003] The airbag pantograph of the electric locomotive adopts an air valve plate to control and adjust the compressed air input. The ADD (AutoDropping Device) air circuit is used to monitor and control the ADD function of the pantograph. When the pantograph is severely impacted and damaged, the carbon slide plate is worn beyond the limit, or the ADD pipeline leaks, the quick exhaust valve leaks, or the stop valve breaks, the air pressure in the control pipeline drops, the quick exhaust valve opens, and the compressed air in the airbag and the pipeline is discharged into the atmosphere through the exhaust port of the quick exhaust valve; at the same time, the pressure switch is activated to send a signal that the locomotive air pipeline pressure has dropped, realizing the function of rapid and automatic pantograph lowering.

[0004] The patent of the multifunctional modular air valve plate in the prior art integrates the part for controlling and adjusting the compressed air input and the part for monitoring and controlling the pantograph ADD function on a valve plate body and cannot be disassembled and separated. This multifunctional modular air valve plate is only applicable to new locomotives with ADD function. For some old locomotives without ADD function, the part for monitoring and controlling the pantograph ADD function on this multifunctional modular air valve plate cannot function. The use of this multifunctional modular air valve plate not only has poor matching, but also increases equipment costs. Utility Model Content

[0005] An embodiment of the present application provides a pantograph valve plate, which is used to solve the problem that the existing valve plate cannot be well adapted to locomotives with and without the ADD function, and has poor applicability.

[0006] To achieve the above object, the present application provides a pantograph valve plate, the pantograph valve plate comprising:

[0007] A pantograph lifting control module, comprising a first air circuit board and a filter, a solenoid valve, a first one-way throttle valve, a plate-type pressure regulating valve, and a second one-way throttle valve, which are arranged on the first air circuit board and are sequentially connected through a first air circuit inside the first air circuit board, wherein the first air circuit is formed with an airbag interface and an intermediate interface on the side of the first air circuit board, which are connected with the outlet of the second one-way throttle valve, and the airbag interface is used to connect with the airbag of the pantograph;

[0008] The ADD control module comprises a second gas circuit board and a three-way gate valve, a shuttle valve, a quick exhaust valve and a pressure switch which are arranged on the second gas circuit board and connected with a second gas circuit inside the second gas circuit board, wherein the second gas circuit is formed with a docking port and an ADD gas circuit interface on the side of the second gas circuit board, wherein the docking port is used to dock with the intermediate interface, and the ADD gas circuit interface is used to connect with the ADD gas circuit of the pantograph, wherein a first outlet of the three-way gate valve is connected with the ADD gas circuit interface through the quick exhaust valve, and a second outlet of the three-way gate valve is connected with the pressure switch through the shuttle valve, and the shuttle valve is simultaneously connected with the ADD gas circuit interface; and

[0009] The connecting piece is used to detachably connect the first gas circuit board and the second gas circuit board. When the first gas circuit board and the second gas circuit board are connected through the connecting piece, the docking port and the middle port are correspondingly connected.

[0010] Optionally, the connecting part includes multiple bolts, the airbag interface and the intermediate interface are respectively located on different sides of the first air circuit plate, the side of the first air circuit plate where the intermediate interface is provided is provided with multiple threaded holes, the docking interface and the ADD air circuit interface are respectively located on different sides of the second air circuit plate, the side of the second air circuit plate where the docking interface is provided is provided with multiple through holes penetrating the second air circuit plate, and there is a one-to-one correspondence between the intermediate interface and the docking interface, and between the multiple threaded holes and the multiple through holes, respectively, and the through holes are used for the bolts to pass through and be screwed to the threaded holes, so that the first air circuit plate and the second air circuit plate are connected, and the docking interface and the intermediate interface are correspondingly connected.

[0011] Optionally, a sealing gasket is provided between the sides of the first gas circuit plate and the second gas circuit plate that are in contact with each other.

[0012] Optionally, the lifting bow control module further includes a first pressure gauge, which is disposed on the first gas circuit board and connected to the plate-type pressure regulating valve;

[0013] The ADD control module further includes a second pressure gauge, which is disposed on the second gas circuit board and connected to the pressure switch.

[0014] Optionally, the lifting bow control module further includes a safety overflow valve, which is disposed on the first gas circuit plate and is connected to the first gas circuit between the plate-type pressure regulating valve and the second one-way throttle valve.

[0015] Optionally, the three-way stop gate valve includes a lower air chamber and an upper air chamber, the lower air chamber is connected to the upper air chamber through a small hole, the inlet of the three-way stop gate valve is arranged in the lower air chamber, the first outlet and the second outlet of the three-way stop gate valve are both arranged in the upper air chamber, and the knob on the three-way stop gate valve is used to control the inlet to be connected with the first outlet or with the second outlet.

[0016] Optionally, the first air inlet of the shuttle valve is communicated with the second outlet of the three-way stopper valve, the outlet of the shuttle valve is communicated with the pressure switch, and the second air inlet of the shuttle valve is communicated with the ADD air circuit interface.

[0017] The beneficial effect of the pantograph valve plate provided by the present application is that compared with the prior art, the pantograph valve plate of the present application is mainly composed of three parts: a pantograph lifting control module, an ADD control module and a connecting piece, and the first air circuit plate of the pantograph lifting control module and the second air circuit plate of the ADD control module are detachably connected by a connecting piece, the pantograph lifting control module is used to control and adjust the compressed air input to the air bag of the pantograph, and the ADD control module is used to monitor and control the ADD of the pantograph, and by designing the pantograph lifting control module and the ADD control module as two detachable and separable modules, when the pantograph valve plate is used for a new locomotive with an ADD function, the pantograph lifting control module and the ADD control module are connected as one through a connecting piece, and when the pantograph valve plate is used for an old locomotive without an ADD function, the middle interface on the pantograph lifting control module is sealed by a cover, and only the pantograph lifting control module is used alone. In summary, the pantograph valve plate can be well applied to new locomotives with an ADD function and old locomotives without an ADD function, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] in:

[0020] Figure 1 It is a schematic diagram of the overall structure of a pantograph valve plate shown in one embodiment of the present application;

[0021] Figure 2 It is a schematic diagram showing the pantograph lifting and lowering control module, ADD control module and connecting member of the pantograph valve plate of an embodiment of the present application being separated;

[0022] Figure 3It is a schematic diagram showing the separation of the pantograph lifting and lowering control module and the ADD control module of the pantograph valve plate according to an embodiment of the present application;

[0023] Figure 4 It is a gas circuit schematic diagram of a pantograph air valve plate shown in one embodiment of the present application.

[0024] Description of main component symbols:

[0025] 100. Bow lifting control module;

[0026] 110, first gas circuit board; 111, middle interface; 112, threaded hole; 120, filter; 130, solenoid valve; 140, first one-way throttle valve; 150, plate-type pressure regulating valve; 160, second one-way throttle valve; 170, safety relief valve; 180, first pressure gauge; 190, cover;

[0027] 200, ADD control module;

[0028] 210, second gas circuit board; 211, docking port; 212, through hole; 220, three-way plug valve; 230, shuttle valve; 240, quick exhaust valve; 250, pressure switch; 260, second pressure gauge;

[0029] 300. Connectors. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0035] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0036] The embodiment of the present application provides a pantograph valve plate, such as Figure 1-Figure 3 As shown, the pantograph valve plate includes a pantograph lifting control module 100 , an ADD control module 200 and a connector 300 .

[0037] The pantograph lifting control module 100 includes a first air circuit plate 110 and a filter 120, a solenoid valve 130, a first one-way throttle valve 140, a plate-type pressure regulating valve 150 and a second one-way throttle valve 160 which are arranged on the first air circuit plate 110 and connected in sequence through the first air circuit inside the first air circuit plate 110. The first air circuit is formed with an airbag interface and an intermediate interface 111 on the side of the first air circuit plate 110 which are connected to the outlet of the second one-way throttle valve 160. The airbag interface is used to connect to the airbag of the pantograph.

[0038] The ADD control module 200 includes a second gas circuit board 210 and a three-way gate valve 220, a shuttle valve 230, a quick exhaust valve 240 and a pressure switch 250 which are arranged on the second gas circuit board 210 and connected to the second gas circuit inside the second gas circuit board 210. The second gas circuit is formed with a docking port 211 and an ADD gas circuit interface on the side of the second gas circuit board 210. The docking port 211 is used to dock with the intermediate interface 111. The ADD gas circuit interface is used to connect the ADD gas circuit of the pantograph. The first outlet of the three-way gate valve 220 is connected to the ADD gas circuit interface through the quick exhaust valve 240. The second outlet of the three-way gate valve 220 is connected to the pressure switch 250 through the shuttle valve 230. The shuttle valve 230 is also connected to the ADD gas circuit interface. Specifically, in combination with Figure 4As shown, the first air inlet of the shuttle valve 230 is connected to the second outlet of the three-way stopper valve 220, the outlet of the shuttle valve 230 is connected to the pressure switch 250, and the second air inlet of the shuttle valve 230 is connected to the ADD air circuit interface.

[0039] The connecting member 300 is used to detachably connect the first gas circuit plate 110 and the second gas circuit plate 210 . When the first gas circuit plate 110 and the second gas circuit plate 210 are connected via the connecting member 300 , the docking port 211 and the middle port 111 are connected to each other.

[0040] Combination Figure 4 As shown, the working principle of the pantograph valve plate is as follows:

[0041] The pantograph is raised by turning the pantograph control switch in the cab to the pantograph raising position. In this case, the solenoid valve 130 is energized and the compressed air enters the first air path in the first air path plate 110, and enters the air bag of the pantograph through the air bag interface, the air pipe and the insulating hose. When the air pressure in the air bag reaches the set value of the plate-type pressure regulating valve 150, the pantograph will gradually rise, and the contact pressure with the contact network will be determined. The contact pressure is adjusted by rotating the knob on the plate-type pressure regulating valve 150: clockwise rotation increases the contact pressure, and counterclockwise rotation decreases the contact pressure.

[0042] By adjusting the first one-way throttle valve 140 at the front end of the plate-type pressure regulating valve 150, the speed of raising the pantograph can be adjusted. The time of raising the pantograph can be reduced clockwise, while the time of raising the pantograph can be increased counterclockwise. Under normal circumstances, the air pressure in the airbag decreases and the pantograph is lowered. When the pantograph control button is turned to the pantograph lowering position, the pantograph is lowered. When the air pressure decreases, the pantograph is forced to lower the pantograph to the pantograph lowering position by its own weight. The speed of lowering the pantograph can be adjusted by adjusting the second one-way throttle valve 160 at the rear end of the plate-type pressure regulating valve 150. The time of lowering the pantograph can be reduced clockwise, while the time of lowering the pantograph can be increased counterclockwise. If the air circuit or circuit control system fails, the pantograph will automatically lower the pantograph.

[0043] If the slide plate is damaged, the carbon slide plate is worn beyond the limit, the ADD pipeline leaks, the quick exhaust valve 240 leaks, or the stop valve breaks, the air pressure in the control pipeline drops, the quick exhaust valve 240 opens, causing compressed gas to leak, and the air bag will be exhausted through the quick exhaust valve 240 to achieve automatic lowering of the pantograph.

[0044] When both pantographs of the locomotive are faulty and cannot be automatically raised after being lowered but need to be raised again, the three-way gate valve 220 is rotated to another position to cut off the ADD air circuit, and the pantograph raising air circuit is directly connected to the pressure switch 250 through the three-way gate valve 220. The pressure switch 250 sends a signal that the air pressure is normal to raise the pantograph, and the pantograph raising operation is maintained when the solenoid valve 130 and the air pump that provides compressed air are turned on, thereby solving the convenience and safety issues brought about by the need to board the vehicle and maintaining the operation of the vehicle.

[0045] In the embodiment of the present application, the pantograph air valve plate is mainly composed of three parts: a pantograph lifting control module 100, an ADD control module 200 and a connector 300, and the first air circuit plate 110 of the pantograph lifting control module 100 and the second air circuit plate 210 of the ADD control module 200 are detachably connected through the connector 300, the pantograph lifting control module 100 is used to control and adjust the compressed air input to the air bag of the pantograph, and the ADD control module 200 is used to monitor and control the ADD of the pantograph. By designing the pantograph lifting control module 100 and the ADD control module 200 as two detachable and separable modules, when the pantograph air valve plate is used for a new locomotive with an ADD function, the pantograph lifting control module 100 and the ADD control module 200 are connected as a whole through the connector 300, and when the pantograph air valve plate is used for an old locomotive without an ADD function, the middle interface 111 on the pantograph lifting control module 100 is blocked by a cover 190 (such as Figure 3 As shown), only the pantograph control module 100 is used alone. In summary, the pantograph valve plate can be well applied to new locomotives with ADD function and old locomotives without ADD function, and has strong applicability.

[0046] In one embodiment, if Figure 2 As shown, the connecting member 300 includes a plurality of bolts, the airbag interface and the intermediate interface 111 are respectively located on different sides of the first air circuit plate 110, a plurality of threaded holes 112 are provided on the side of the first air circuit plate 110 on which the intermediate interface 111 is provided, the docking interface 211 and the ADD air circuit interface are respectively located on different sides of the second air circuit plate 210, a plurality of through holes 212 penetrating the second air circuit plate 210 are provided on the side of the second air circuit plate 210 on which the docking interface 211 is provided, and the intermediate interface 111 corresponds to the docking interface 211, and the plurality of threaded holes 112 corresponds to the plurality of through holes 212, respectively, and the through holes 212 are used for bolts to pass through and be screwed to the threaded holes 112, so that the first air circuit plate 110 and the second air circuit plate 210 are connected, and the docking interface 211 and the intermediate interface 111 are corresponding to each other.

[0047] Furthermore, in order to improve the air tightness after the first gas circuit plate 110 and the second gas circuit plate 210 are connected, a sealing gasket (not shown in the figure) is provided between the sides of the first gas circuit plate 110 and the second gas circuit plate 210 that are in contact with each other.

[0048] In one embodiment, if Figure 1 and Figure 4As shown, the lifting bow control module 100 also includes a first pressure gauge 180, which is arranged on the first air circuit board 110 and connected to the plate-type pressure regulating valve 150; the ADD control module 200 also includes a second pressure gauge 260, which is arranged on the second air circuit board 210 and connected to the pressure switch 250.

[0049] The first pressure gauge 180 and the second pressure gauge 260 are used to respectively respond in real time to the input air pressure value and the output end air pressure value monitored by the pressure switch 250, so as to facilitate the plate-type pressure regulating valve 150 to adjust the air pressure and control the bow raising process.

[0050] In one embodiment, if Figure 1-Figure 2 and Figure 4 As shown, the bow lifting control module 100 further includes a safety relief valve 170, which is disposed on the first gas circuit board 110 and communicates with the first gas circuit between the plate-type pressure regulating valve 150 and the second one-way throttle valve 160. When the air pressure in the airbag is higher than the set value, the safety relief valve 170 automatically opens to exhaust air to reduce the air pressure value of the airbag to prevent safety accidents.

[0051] In one embodiment, the three-way stopper valve 220 includes a lower air chamber and an upper air chamber, the lower air chamber is connected to the upper air chamber through a small hole, the inlet of the three-way stopper valve 220 is arranged in the lower air chamber, the first outlet and the second outlet of the three-way stopper valve 220 are both arranged in the upper air chamber, and the knob on the three-way stopper valve 220 is used to control the inlet to be connected to the first outlet or the second outlet. The operator only needs to rotate the knob on the three-way stopper valve 220 to control the pantograph to raise the pantograph again.

[0052] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A pantograph valve plate, characterized in that: include: A pantograph lifting control module, comprising a first air circuit board and a filter, a solenoid valve, a first one-way throttle valve, a plate-type pressure regulating valve, and a second one-way throttle valve, which are arranged on the first air circuit board and are sequentially connected through a first air circuit inside the first air circuit board, wherein the first air circuit is formed with an airbag interface and an intermediate interface on the side of the first air circuit board, which are connected with the outlet of the second one-way throttle valve, and the airbag interface is used to connect with the airbag of the pantograph; The ADD control module comprises a second gas circuit board and a three-way gate valve, a shuttle valve, a quick exhaust valve and a pressure switch which are arranged on the second gas circuit board and connected with a second gas circuit inside the second gas circuit board, wherein the second gas circuit is formed with a docking port and an ADD gas circuit interface on the side of the second gas circuit board, wherein the docking port is used to dock with the intermediate interface, and the ADD gas circuit interface is used to connect with the ADD gas circuit of the pantograph, wherein a first outlet of the three-way gate valve is connected with the ADD gas circuit interface through the quick exhaust valve, and a second outlet of the three-way gate valve is connected with the pressure switch through the shuttle valve, and the shuttle valve is simultaneously connected with the ADD gas circuit interface; and The connecting piece is used to detachably connect the first gas circuit board and the second gas circuit board. When the first gas circuit board and the second gas circuit board are connected through the connecting piece, the docking port and the middle port are correspondingly connected.

2. The pantograph valve plate according to claim 1, characterized in that: The connecting member includes multiple bolts, the airbag interface and the intermediate interface are respectively located on different sides of the first air circuit plate, the side of the first air circuit plate where the intermediate interface is provided is provided with multiple threaded holes, the docking interface and the ADD air circuit interface are respectively located on different sides of the second air circuit plate, the side of the second air circuit plate where the docking interface is provided is provided with multiple through holes penetrating the second air circuit plate, there is a one-to-one correspondence between the intermediate interface and the docking interface, and between the multiple threaded holes and the multiple through holes, respectively, the through holes are used for the bolts to pass through and be screwed to the threaded holes, so that the first air circuit plate and the second air circuit plate are connected, and the docking interface and the intermediate interface are correspondingly connected.

3. The pantograph valve plate according to claim 2, characterized in that: A sealing gasket is arranged between the mutually abutting sides of the first gas circuit plate and the second gas circuit plate.

4. The pantograph valve plate according to claim 1, characterized in that: The lifting bow control module further includes a first pressure gauge, which is disposed on the first gas circuit board and connected to the plate-type pressure regulating valve; The ADD control module further includes a second pressure gauge, which is disposed on the second gas circuit board and connected to the pressure switch.

5. The pantograph valve plate according to claim 1, characterized in that: The lifting bow control module also includes a safety overflow valve, which is arranged on the first gas circuit board and is connected to the first gas circuit between the plate-type pressure regulating valve and the second one-way throttle valve.

6. The pantograph valve plate according to claim 1, characterized in that: The three-way stop gate valve includes a lower air chamber and an upper air chamber, the lower air chamber is connected to the upper air chamber through a small hole, the inlet of the three-way stop gate valve is arranged in the lower air chamber, the first outlet and the second outlet of the three-way stop gate valve are both arranged in the upper air chamber, and the knob on the three-way stop gate valve is used to control the inlet to be connected to the first outlet or to the second outlet.

7. The pantograph valve plate according to claim 1, characterized in that: The first air inlet of the shuttle valve is communicated with the second outlet of the three-way stopper valve, the outlet of the shuttle valve is communicated with the pressure switch, and the second air inlet of the shuttle valve is communicated with the ADD air circuit interface.

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