Height valve and vehicle body balancing device with same

Abstract

The utility model discloses a height valve and a vehicle body balancing device with the height valve, the height valve comprises a valve body, the interior of the valve body is of a cavity structure, one end of the cavity structure is provided with a first air inlet, and the other end of the cavity structure is provided with an air outlet; a second air inlet is formed in one side of the valve body, and an inflation inlet is formed in the other side; a cavity structure is formed in the valve body, a valve element capable of axially moving, a valve sleeve and a sealing cover are arranged in the cavity structure, the valve sleeve is fixed to the valve body, the sealing cover abuts against the end of the valve sleeve and divides the cavity structure into two independent sealing cavities, namely a first sealing cavity and a second sealing cavity, and one end of the valve element penetrates through the valve sleeve to be connected with the sealing cover; the first air inlet and the second air inlet are both communicated with the first sealing cavity, and the inflation inlet and the air outlet are both communicated with the second sealing cavity. The height valve is simple in structure, high in universality and convenient to install and maintain. The vehicle body balancing device with the altitude valve can balance the vehicle body and prevent the phenomenon that a coupling device is unhooked in the running process of the vehicle body.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and particularly relates to a height valve and a vehicle body balance device with the height valve. Background Technique

[0002] At present, in vehicles such as railway passenger cars, multiple units, and subways, in order to reduce the vibration of the vehicle body and improve the riding comfort, air springs are provided between the vehicle body and the bogie. Although setting the air spring solves the problem of riding comfort, some new problems are brought, that is, during actual operation, the passengers in the carriage are unevenly distributed. The air spring is compressed greatly in the area where passengers are concentrated, while the air spring is compressed less in the area where passengers are scarce, which is likely to cause the vehicle body to tilt. Especially for a train, the load mass of each carriage is different, and the change amount of the load mass of each carriage is also different each time the train stops, which will cause the vehicle heights to be inconsistent, and the coupling device may become unhooked during operation, resulting in potential safety hazards for the vehicle. Content of the Utility Model

[0003] Aiming at the problems existing in the prior art, the utility model provides a height valve and a vehicle body balance device with the height valve, which can solve the problem of the coupling device becoming unhooked during the operation of the vehicle body, ensure the safety of the train; and has a simple structure, strong versatility, high installation efficiency, and convenient maintenance.

[0004] To achieve the above object, the technical solution adopted by the utility model is: to provide a height valve, which includes a valve body. The inside of the valve body is a cavity structure. One end of the cavity structure is provided with a first air inlet, and the other end is provided with an air outlet; a second air inlet is provided on one side of the valve body, and an inflation port is provided on the other side; a valve core, a valve sleeve and a sealing cover that can move axially along the valve body are arranged in the cavity structure. The valve sleeve is fixed on the valve body. The sealing cover abuts against the end of the valve sleeve and divides the cavity structure into two independent sealed chambers, namely a first sealed chamber and a second sealed chamber. One end of the valve core passes through the valve sleeve and is connected to the sealing cover, and the other end is connected to a driving mechanism; the first air inlet and the second air inlet are both communicated with the first sealed chamber, and the inflation port and the air outlet are both communicated with the second sealed chamber.

[0005] Further, for a height valve as described above, the first air inlet and the second air inlet are communicated with each other.

[0006] Further, for a height valve as described above, the first air inlet is communicated with the cavity structure through an air inlet end.

[0007] Further, for a height valve as described above, a groove is provided in the air inlet end, and a first return spring is provided in the groove. One end of the first return spring is connected to the inner wall of the air inlet end, and the other end is connected to the sealing cover.

[0008] Further, in a height valve as described above, a second return spring is provided between the valve core and the drive mechanism.

[0009] The present utility model further provides a vehicle body balance device, which includes the height valve and the air spring described above. The height valve is installed at the bottom of the vehicle body, and the air spring is installed between the vehicle body and the bogie; the first air inlet and the second air inlet of the height valve are both connected to the air inlet device, the inflation port is connected to the air spring, the air outlet is connected to the atmosphere, and the drive mechanism is connected to the bogie; when the vehicle load increases, the air spring is compressed, at this time the air outlet is closed, one of the air inlets and the inflation port are opened, and the drive mechanism drives the valve core to move upward, and the air inlet and the inflation port are connected to form an air inlet channel for the air spring; when the vehicle load decreases, the air spring expands, at this time both air inlets are closed, the air outlet and the inflation port are opened, and the drive mechanism drives the valve core to move downward, and the inflation port and the air outlet are connected to form an exhaust channel for the air spring.

[0010] Further, in the vehicle body balance device as described above, the drive mechanism includes a horizontal rod and a vertical rod, and the horizontal rod and the vertical rod are hinged.

[0011] The beneficial technical effects of the present utility model are:

[0012] (1) For the height valve of the present utility model, by providing two air inlets, one air outlet and one inflation port, it can meet the installation requirements of different vehicle body structures, achieve perfect docking with the vehicle body in a narrow space, improve its versatility and installation efficiency, and bring great convenience to maintenance.

[0013] (2) For the height valve of the present utility model, it is installed at the bottom of the vehicle body and cooperates with the air spring. When the vehicle load increases, it inflates the air spring. When the vehicle load decreases, it discharges the excess air in the air spring to ensure the balance of the vehicle body and prevent the phenomenon of the coupler device from becoming unhooked.

[0014] (3) The vehicle body balance device of the present utility model has a simple structure, low cost and strong stability. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the height valve of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the vehicle body balance device of the present utility model.

[0017] In the figure:

[0018] 1 - valve body; 2 - valve core; 3 - first air inlet; 4 - second air inlet; 5 - inflation port; 6 - air outlet; 7 - valve sleeve; 8 - air inlet end; 9 - air outlet end; 10 - sealing cover; 11 - first return spring; 12 - second return spring; 13 - height valve; 14 - air spring; 15 - vehicle body

[0019] 16 - Bogie 17 - Inflation pipe 18 - Intake pipe 19 - Horizontal rod 20 - Vertical rod Detailed implementation mode

[0020] The following combines with the attached drawings to make a more detailed description of the specific implementation mode of the present utility model.

[0021] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non - exclusive inclusion.

[0022] As Figure 1 shown, a height valve provided by the present utility model includes a valve body 1. The inside of the valve body 1 is a cavity structure. One end of this cavity structure is sealed by an air inlet end 8, and the other end is sealed by an air outlet end 9. The air inlet end 8 is provided with a first air inlet 3, and the first air inlet 3 is communicated with the cavity structure. The air outlet end 9 is provided with an air outlet 6, and the air outlet 6 is communicated with the cavity structure. One side of the valve body 1 is provided with a second air inlet 4, and the second air inlet 4 is communicated with the first air inlet 3 (the two air inlets can be used simultaneously or separately. According to different structures of the vehicle body, different air inlets are selected, which increases the flexibility of use). The other side is provided with an inflation port 5, and the inflation port 5 is communicated with the cavity structure. Inside the cavity structure, there are a valve core 2, a valve sleeve 7 and a sealing cover 10 that can move along the axial direction of the valve body. The valve sleeve 7 is fixed on the valve body 1; the sealing cover 10 abuts against the end of the valve sleeve 7 and divides the cavity structure into two independent sealed chambers, namely the first sealed chamber and the second sealed chamber; one end of the valve core 2 passes through the valve sleeve 7 and is connected to the sealing cover 10, and the other end is connected to a driving mechanism, and can drive the valve core 2 to move axially. The first air inlet 3 and the second air inlet 4 are both communicated with the first sealed chamber, and the inflation port 5 and the air outlet 6 are both communicated with the second sealed chamber.

[0023] To facilitate the reset of the valve core 2 after movement, a second return spring 12 is installed between the valve core 2 and the driving mechanism.

[0024] To facilitate the reset of the sealing cover 10 after movement, a groove is provided inside the air inlet end 8, and a first return spring 11 is provided in the groove. One end of the first return spring 11 is connected to the inner wall of the air inlet end 8, and the other end is connected to the sealing cover 10.

[0025] To ensure the wear resistance of the valve sleeve 7, aluminum bronze is preferably used.

[0026] To ensure the performance requirements of the sealing cover 10 at a low temperature of -40°C, silicone rubber is preferably used.

[0027] As Figure 2 shown, a vehicle body balance device provided by the present invention includes the above-mentioned height valve 13 and air spring 14. The height valve 13 is installed at the bottom of the vehicle body 15, and the air spring 14 is installed between the vehicle body 15 and the bogie 16. The first air inlet 3 and the second air inlet 4 of the height valve 13 are both connected to the air inlet device through their respective air inlet pipes 18. The inflation port 5 is connected to the air spring 14 through the inflation pipe 17, and the air outlet 6 is connected to the atmosphere. The driving mechanism is connected to the bogie 16. Among them, the driving mechanism includes a horizontal rod 19 and a vertical rod 20, and the horizontal rod 19 and the vertical rod 20 are hinged. The vertical rod 20 is connected to the bogie 16, and the horizontal rod 19 is connected to the valve core 2 through an eccentric component. The eccentric component includes an eccentric wheel and an eccentric pin provided on the eccentric wheel. The eccentric wheel is connected to the horizontal rod 19, and the eccentric pin is connected to the valve core 2. It should be noted that the height valve of the present invention can be installed vertically or horizontally, and its installation direction is determined according to actual needs.

[0028] When the vehicle is at the set height, the height valve 13 is in the neutral position, that is, the horizontal rod 17 is parallel to the vehicle body 15. At this time, the first air inlet 3, the second air inlet 4, and the air outlet 6 are all in the closed state, and the air spring 14 is neither inflated nor deflated.

[0029] When the vehicle load increases, the air spring 14 is compressed, and the vehicle body 15 begins to sink. The horizontal rod 19 rotates counterclockwise around its hinge point with the vertical rod 20, driving the eccentric wheel to rotate counterclockwise. The eccentric pin on the eccentric wheel drives the valve core 2 to move upward, thus pushing open the sealing cover 10, causing the first sealing chamber and the second sealing chamber to communicate; at this time, the air outlet 6 is closed, and one of the air inlets and the inflation port 5 are opened. The air inlet and the inflation port 5 communicate to form an air inlet channel for the air spring 14, and the air spring 14 is inflated to raise the height of the vehicle body 15 until the height of the vehicle body 15 is restored to the set value.

[0030] When the vehicle load decreases, the air spring 14 expands, and the vehicle body 15 begins to rise. The horizontal rod 19 rotates clockwise around its hinge point with the vertical rod 20, driving the eccentric wheel to rotate clockwise. The eccentric pin on the eccentric wheel drives the valve core 2 to move downward, so that the sealing cover 10 abuts against the end of the valve sleeve, causing the first sealing chamber and the second sealing chamber to be separated; at this time, the first air inlet 3 and the second air inlet 4 are both closed, and the inflation port 5 and the air outlet 6 are opened. The inflation port 5 and the air outlet 6 communicate to form an exhaust channel for the air spring 14, and the excess gas in the air spring 14 is discharged to reduce the height of the vehicle body 15 until the height of the vehicle body 15 is restored to the set value.

[0031] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art, according to the technical solutions and the inventive concept disclosed by the present utility model, make equivalent substitutions or changes, and the obtained technical solutions should all be covered within the protection scope of the present utility model.

Claims

1. A height valve, comprising a valve body (1), characterized in that: The interior of the valve body (1) is a cavity structure, one end of which is provided with a first air inlet (3) and the other end of which is provided with an air outlet (6); one side of the valve body (1) is provided with a second air inlet (4) and the other side is provided with an air charging port (5); the cavity structure is provided with a valve core (2) that can move along the axial direction of the valve body, a valve sleeve (7) and a sealing cover (10); the valve sleeve (7) is fixed on the valve body (1); the sealing cover (10) abuts against the end of the valve sleeve (7) and divides the cavity structure into two independent sealed chambers, namely a first sealed chamber and a second sealed chamber; one end of the valve core (2) passes through the valve sleeve (7) and is connected to the sealing cover (10), and the other end is connected to a driving mechanism; the first air inlet (3) and the second air inlet (4) are both connected to the first sealed chamber, and the air charging port (5) and the air outlet (6) are both connected to the second sealed chamber.

2. A height valve as claimed in claim 1, characterized in that: The first air inlet (3) and the second air inlet (4) are connected.

3. A height valve as claimed in claim 2, characterized in that: The first air inlet (3) is connected to the cavity structure via an air inlet end (8).

4. A height valve as claimed in claim 3, characterized in that: The air inlet end head (8) is provided with a groove, and a first return spring (11) is provided in the groove. One end of the first return spring (11) is connected to the inner wall of the air inlet end head (8), and the other end is connected to the sealing cover (10).

5. A height valve as claimed in claim 4, characterized in that: A second return spring (12) is provided between the valve core (2) and the driving mechanism.

6. A vehicle body balancing device having a height valve according to any one of claims 1 to 5, characterized in that: The invention comprises a height valve (13) and an air spring (14), wherein the height valve (13) is installed at the bottom of a vehicle body (15), and the air spring (14) is installed between the vehicle body (15) and a bogie (16); a first air inlet (3) and a second air inlet (4) of the height valve (13) are both connected to an air intake device, an air charging port (5) is connected to the air spring (14), an air outlet (6) is connected to the atmosphere, and a driving mechanism is connected to the bogie (16); when the vehicle mass increases, the air spring (14) is When the vehicle is compressed, the air outlet (6) is closed, one of the air inlets and the charging port (5) is opened, the driving mechanism drives the valve core (2) to move upward, and the air inlet and the charging port (5) are connected to form an air inlet passage of the empty spring (14); when the vehicle mass decreases, the empty spring (14) expands, and the two air inlets are closed, the air outlet (6) and the charging port (5) are opened, the driving mechanism drives the valve core (2) to move downward, and the charging port (5) and the air outlet (6) are connected to form an exhaust passage of the empty spring (14).

7. The vehicle body balancing device according to claim 6, characterized in that: The driving mechanism comprises a horizontal rod (19) and a vertical rod (20), and the horizontal rod (19) and the vertical rod (20) are hinged.

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