CN213734948U

CN213734948U - Two-way check valve assembly and brake gas circuit system

Info

Publication number: CN213734948U
Application number: CN202121277642.8U
Authority: CN
Inventors: 徐显杰; 张金广; 于彬
Original assignee: Suoto Hangzhou Automotive Intelligent Equipment Co Ltd; Tianjin Soterea Automotive Technology Co Ltd
Current assignee: Suoto Hangzhou Automotive Intelligent Equipment Co Ltd; Tianjin Soterea Automotive Technology Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-07-20
Anticipated expiration: 2031-06-09

Abstract

The utility model belongs to the technical field of the bi-pass check valve, especially, relate to a bi-pass check valve subassembly and braking gas circuit system, the bi-pass check valve subassembly includes: the two-way check valve is provided with an inlet end and an outlet end, and a mounting hole communicated with the interior of the two-way check valve is formed in the side wall of the outlet end; the pressure detection piece is at least partially arranged in the mounting hole and is used for detecting the pressure of the outlet end; the protection casing, it is fixed on the bi-pass check valve, pressure measurement spare is located the inside of protection casing. The pressure detection piece is arranged in the mounting hole in the side wall of the outlet end to detect the pressure of the outlet end, the structural form is simple, and the system does not need to be modified. Other components are not required to be added to the system for auxiliary detection, so that the cost of the system is saved, and the failure rate of the system is reduced. The pressure detection piece is located the inside of protection casing, and the protection casing can protect the pressure detection piece, prevents it and is damaged, has reduced the fault rate of system.

Description

Two-way check valve assembly and brake gas circuit system

Technical Field

The utility model belongs to the technical field of the bi-pass check valve, especially, relate to a bi-pass check valve subassembly and braking gas circuit system.

Background

Most of the existing two-way check valves are purely mechanical products, and the compressed air shunting work is completed through the movement of the rubber blocks inside the two-way check valves. However, when the system using the product needs to master the internal pressure in real time, the current solution is to add other components to accomplish the function, and mainly add a detection component on the pipeline communicated with the two-way check valve to detect the internal pressure. Adding additional components increases the cost of the overall system and also increases the failure rate.

Therefore, a two-way check valve assembly and a brake air circuit system are needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bi-pass check valve subassembly and braking gas circuit system, its structural style is simple, need not to modify the system moreover, has saved the cost of system, has reduced the fault rate of system.

To achieve the purpose, the utility model adopts the following technical proposal:

in a first aspect, there is provided a two-way check valve assembly comprising:

the two-way check valve is provided with an inlet end and an outlet end, and a mounting hole for communicating the inside and the outside of the two-way check valve is formed in the side wall of the outlet end;

the pressure detection piece is at least partially arranged in the mounting hole and is used for detecting the pressure of the outlet end;

the protection casing, it is fixed on the bi-pass check valve, pressure measurement spare is located the inside of protection casing.

As a preferred technical scheme of two-way check valve subassembly, the cover is equipped with the sealing washer on the pressure measurement spare, the sealing washer butt in the inner wall of mounting hole.

As a preferred technical scheme of two-way check valve subassembly, still include PCBA, it is connected with the pressure detection spare electricity, PCBA sets up in the protection casing.

As a preferred solution for a two-way check valve assembly, the pressure sensing piece is welded to the PCBA.

As a preferred technical scheme of the two-way one-way valve component, the two-way one-way valve component also comprises an output cable, wherein the output cable is electrically connected with the PCBA, and one end of the output cable extends out of the protective cover.

As an optimal technical scheme of two-way check valve subassembly, be provided with coupling nut on the safety cover, the output cable is worn to locate coupling nut, coupling nut be used for with the output cable is fixed on the safety cover.

As a preferred technical scheme of the two-way check valve component, a sealing gasket is arranged between the protective cover and the two-way check valve.

As a preferred technical scheme of bi-pass check valve subassembly, still include the mounting, be provided with the connecting hole on the shield, be provided with the fixed orifices on the bi-pass check valve, the mounting passes the connecting hole is fixed in the fixed orifices, with will the shield is fixed on the bi-pass check valve.

As a preferred technical scheme of the two-way check valve assembly, the protective cover is provided with a ventilation port, and the ventilation port is provided with a waterproof ventilation device.

In a second aspect, a brake air circuit system is provided that includes a two-way check valve assembly as described above.

Compared with the prior art, the utility model discloses following beneficial effect has:

the pressure detection piece is arranged in the mounting hole in the side wall of the outlet end to detect the pressure of the outlet end, the structural form is simple, and the system does not need to be modified. Other components are not required to be added to the system for auxiliary detection, so that the cost of the system is saved, and the failure rate of the system is reduced. The pressure detection piece is located the inside of protection casing, and the protection casing can protect the pressure detection piece, prevents it and is damaged, has reduced the fault rate of system.

Drawings

FIG. 1 is a schematic structural view of a two-way check valve assembly provided by the present invention;

FIG. 2 is a cross-sectional view of a two-way check valve assembly provided by the present invention;

fig. 3 is a schematic view of a partial structure of the two-way check valve assembly provided by the present invention.

Wherein, 1, a two-way one-way valve; 11. an inlet end; 12. an outlet end; 13. mounting holes; 2. a pressure detecting member; 21. a seal ring; 3. a protective cover; 31. a connecting nut; 4. PCBA; 5. an output cable; 6. a gasket; 7. and a fixing member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 3, the present embodiment discloses a two-way check valve assembly including a two-way check valve 1, a pressure detecting member 2, and a protection cover 3.

The two-way check valve 1 is a mechanical two-way check valve 1, and is used on an added brake air passage of a vehicle to control the flow direction of compressed air. The two-way check valve 1 is provided with an inlet end 11 and an outlet end 12, and a mounting hole 13 for communicating the inside and the outside of the two-way check valve 1 is formed in the side wall of the outlet end 12.

The pressure detection member 2 is embodied as a pressure sensor, which is at least partially mounted in the mounting hole 13, and in particular, a detection head of the pressure detection member 2 is mounted in the mounting hole 13 for detecting the pressure of the outlet end 12. The pressure detection piece 2 is sleeved with a sealing ring 21, the sealing ring 21 abuts against the inner wall of the mounting hole 13, and the sealing ring 21 can seal a gap between the pressure detection piece 2 and the mounting hole 13, so that gas in the two-way check valve 1 cannot leak from the mounting hole 13.

The pressure detection member 2 is installed in a mounting hole 13 formed in a side wall of the outlet end 12 to detect the pressure at the outlet end 12, and has a simple structure without modifying the system. Other components are not required to be added to the system for auxiliary detection, so that the cost of the system is saved, and the failure rate of the system is reduced.

The protection casing 3 is fixed on the two-way check valve 1, and the pressure detection piece 2 is positioned inside the protection casing 3. The pressure detection piece 2 is positioned inside the protective cover 3, and the protective cover 3 can protect the pressure detection piece 2 to prevent the pressure detection piece from being damaged, so that the failure rate of the system is reduced. Preferably, the two-way check valve assembly further comprises a PCBA4 and an output wire, the PCBA4 is electrically connected with the pressure detection member 2, in particular, the pressure detection member 2 is welded on the PCBA4, in particular, welded on the PCBA4 by soldering, and the connecting wire of the pressure detection member 2 is welded on the PCBA 4. In other embodiments, the pressure sensing member 2 may also be bonded to the PCBA4 with bond wires soldered or bonded to the PCBA 4. The PCBA4 is arranged inside the shield 3, in particular fixed inside the shield 3 by screws.

The output cable 5 is electrically connected with the PCBA4, specifically by welding, so as to realize the electrical connection between the two, and one end of the output cable 5 extends out of the shield 3. Be provided with connection nut 31 on the protection casing 3, connection nut 31 is worn to locate by the cable, and connection nut 31 is used for fixing the cable on protection casing 3.

The pressure detecting element 2 outputs voltage to the PCBA4, and the PCBA4 converts the voltage value into a visual digital air pressure value. And then output in the form of CAN by the output cable 5. In this embodiment, the voltage output by the pressure detection element 2 is a voltage value of 0 to 3.0V, and the output voltage and the air pressure are in a linear relationship. In other embodiments, a pressure sensor adapted to the pressure sensor may be selected according to needs, and the output form of the pressure sensor may be specifically a voltage, and may also be other electrical signals.

A sealing gasket 6 is arranged between the protective cover 3 and the two-way one-way valve 1. The sealing gasket 6 can ensure that the air tightness of the protective cover 3 prevents water from entering the protective cover 3, and can protect the PCBA4 and the pressure detection piece 2 from being damaged by water immersion. Preferably, the two-way check valve assembly further comprises a fixing piece 7, a connecting hole is formed in the protection cover 3, a fixing hole is formed in the two-way check valve 1, and the fixing piece 7 penetrates through the connecting hole to be fixed in the fixing hole so as to fix the protection cover 3 on the two-way check valve 1. The fixing piece 7 is a screw, and the fixing hole is a threaded hole. And four corners of the protective cover 3 are fixed by screws. The protective cover 3 is provided with a ventilation opening, and a waterproof ventilation device is arranged on the ventilation opening. The waterproof and breathable device is specifically a waterproof and breathable film which can ensure the waterproof and breathable performance of the protective cover 3. After PCBA4 circular telegram was generated heat, the inside atmospheric pressure of protection casing 3 increased, and waterproof ventilated membrane can avoid the inside atmospheric pressure of protection casing 3 to rise, damage protection casing 3 with its inside gaseous discharge.

The embodiment also discloses a brake air channel system which comprises the two-way check valve assembly. The braking air of the braking air path system is connected with the braking system of the original vehicle in parallel, and the two-way check valve assembly is used for controlling the flow direction of the compressed air of the braking air path.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A two-way check valve assembly, comprising:

the two-way check valve (1) is provided with an inlet end (11) and an outlet end (12), and a mounting hole (13) for communicating the inside and the outside of the two-way check valve (1) is formed in the side wall of the outlet end (12);

the pressure detection piece (2) is at least partially arranged in the mounting hole (13) and is used for detecting the pressure of the outlet end (12);

and the protective cover (3) is fixed on the two-way check valve (1), and the pressure detection piece (2) is located inside the protective cover (3).

2. Two-way check valve assembly according to claim 1, characterized in that the pressure detection member (2) is sleeved with a sealing ring (21), and the sealing ring (21) abuts against the inner wall of the mounting hole (13).

3. Two-way check valve assembly according to claim 1, further comprising a PCBA (4) electrically connected with the pressure sensing member (2), the PCBA (4) being disposed within the protective cover (3).

4. Two-way check valve assembly according to claim 3, characterized in that the pressure sensing member (2) is welded to the PCBA (4).

5. Two-way check valve assembly according to claim 3, further comprising an output cable (5) electrically connected to the PCBA (4) and having one end protruding from the shield (3).

6. Two-way check valve assembly according to claim 5, characterized in that a connection nut (31) is provided on the protection cover (3), the output cable (5) is inserted into the connection nut (31), and the connection nut (31) is used for fixing the output cable (5) on the protection cover (3).

7. Two-way check valve assembly according to claim 1, characterized in that a sealing gasket (6) is provided between the protection shield (3) and the two-way check valve (1).

8. Two-way check valve assembly according to claim 1, characterized by further comprising a fixing member (7), wherein a connecting hole is formed in the protection cover (3), a fixing hole is formed in the two-way check valve (1), and the fixing member (7) penetrates through the connecting hole and is fixed in the fixing hole, so that the protection cover (3) is fixed on the two-way check valve (1).

9. Two-way check valve assembly according to claim 1, characterized in that said protection shield (3) is provided with a venting mouth, on which a waterproof venting device is provided.

10. A brake air circuit system including a two-way check valve assembly according to any one of claims 1-9.