Brake pressure relief loop pipeline structure

Abstract

The brake pressure relief loop pipeline structure comprises the pipeline body and the necking structures arranged at the two ends of the pipeline body, the necking structures are movably connected with the pipeline body, and the necking structures can adjust the flow speed of hydraulic oil in a brake pressure relief loop, so that the response time of a brake system is adjusted, overlarge impact in the brake process is avoided, and the service life of the brake pressure relief loop is prolonged. According to the brake pressure relief loop pipeline structure, the response time of the brake pressure relief loop can be adjusted, impact in the braking process can be reduced, and the riding experience and comfort of the passengers can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of rail transit braking, and in particular relates to a brake pressure relief circuit pipeline structure. Background Art

[0002] Rail transit is developing rapidly around the world and has become an important part of urban public transportation. Many cities are continuously expanding their subway and light rail networks to meet the growing urban population and travel needs. Rail transit technology is also constantly improving, including the application of autonomous driving technology, intelligent scheduling systems and energy-saving and environmental protection technologies. Passenger comfort when riding on rail transit trains is also an important indicator of rail transit trains, especially for trains with hydraulic braking systems. The pressure drops very quickly, resulting in a short response time, fast train stops, large impact, and easy to produce large shaking, which can easily cause passengers to fall.

[0003] To address the aforementioned issues, patent document CN217649426U discloses a train brake assembly, a train brake system, and a train. The train brake assembly includes a train commander valve and a brake exhaust valve connected in parallel with the train commander valve. The first end of the brake exhaust valve is connected to the air source end of the train commander valve. The train brake assembly in this utility model incorporates a brake exhaust valve with a normal braking function in parallel with the train commander valve, but this fails to address the aforementioned issues.

[0004] Therefore, there is an urgent need to develop a brake pressure relief circuit pipeline structure that can adjust the response time of the brake pressure relief circuit, reduce the impact during braking, and improve the passenger riding experience. Utility Model Content

[0005] The present invention is designed to solve the above-mentioned problems and aims to provide a brake pressure relief circuit piping structure that can adjust the response time of the brake pressure relief circuit, reduce the impact during braking, and improve the passenger riding experience. In order to achieve the above-mentioned objectives, the technical solutions adopted by the present invention are as follows:

[0006] The utility model provides a brake pressure relief loop pipeline structure, which has the following characteristics: it comprises a pipeline body and a necking structure arranged at both ends of the pipeline body, and the necking structure is movably connected to the pipeline body.

[0007] The brake pressure relief circuit pipeline structure provided by the present invention may also have such a feature that the constriction structure includes a first constriction and a second constriction, and the first constriction and the second constriction are respectively arranged at both ends of the pipeline body.

[0008] The brake pressure relief circuit pipeline structure provided by the present invention may also have the following feature: a first connecting flange is provided on the first constricted opening on a side close to the pipeline body, and the first connecting flange is adapted to the diameter of the pipeline body.

[0009] The brake pressure relief circuit pipeline structure provided by the present invention may also have such a feature that a second connecting flange is provided on a side of the first constriction away from the pipeline body.

[0010] The brake pressure relief circuit pipeline structure provided by the present invention may also have the following feature: a third connecting flange is provided on the second constricted opening on a side close to the pipeline body, and the third connecting flange is adapted to the diameter of the pipeline body.

[0011] The brake pressure relief circuit pipeline structure provided by the present invention may also have such a feature that a fourth connecting flange is provided on a side of the second constricted opening away from the pipeline body.

[0012] The technical effect of the utility model is: the brake pressure relief circuit pipeline structure provided by the utility model includes a pipeline body and a necking structure arranged at both ends of the pipeline body. The necking structure is movably connected to the pipeline body. The necking structure can adjust the flow rate of the hydraulic oil in the brake pressure relief circuit, thereby adjusting the response time of the dynamic system, avoiding excessive impact during the braking process, and improving the passenger riding experience and comfort.

[0013] Therefore, the brake pressure relief circuit piping structure provided by the present invention can adjust the response time of the brake pressure relief circuit, can reduce the impact during the braking process, and can improve the passenger riding experience and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] This manual includes the following drawings, which show the following contents:

[0015] Figure 1 is a cross-sectional view of the brake pressure relief circuit pipeline structure in an embodiment of the present utility model;

[0016] Figure 2 is a cross-sectional view of the first constriction in an embodiment of the present utility model;

[0017] Figure 3 It is a cross-sectional view of the second necking in the embodiment of the present utility model.

[0018] Marked in the figure are: pipe body-10, necking structure-20, first necking-21, first connecting flange-211, second connecting flange-212, second necking-22, third connecting flange-221, and fourth connecting flange-222. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation methods of the present invention through the description of the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0020] Figure 1 It is a cross-sectional view of the brake pressure relief circuit pipeline structure in an embodiment of the present utility model.

[0021] like Figure 1 As shown, the brake pressure relief circuit pipeline structure provided by the present invention includes a pipeline body 10 and a necking structure 20 arranged at both ends of the pipeline body 10. The necking structure 20 is movably connected to the pipeline body 10. The necking structure 20 can adjust the flow rate of the hydraulic oil in the brake pressure relief circuit, thereby adjusting the response time of the dynamic system, avoiding excessive impact during the braking process, and improving the passenger riding experience and comfort.

[0022] Figure 2 is a cross-sectional view of the first constriction in an embodiment of the present utility model; Figure 3 It is a cross-sectional view of the second necking in the embodiment of the present utility model.

[0023] like Figure 2 and Figure 3 As shown, the necking structure 20 includes a first necking 21 and a second necking 22 , and the first necking 21 and the second necking 22 are respectively arranged at two ends of the pipe body 10 .

[0024] like Figure 2 and Figure 3 As shown, the first constriction 21 is funnel-shaped, and a first connecting flange 211 is provided on the side of the first constriction 21 close to the pipe body 10. The first connecting flange 211 is annular, and the diameter of the first connecting flange 211 is adapted to the pipe diameter of the pipe body 10. The first connecting flange 211 is clamped in the pipe body 10 and is crimped by crimping, which makes it easy to disassemble and assemble the first constriction 21. A second connecting flange 212 is provided on the side of the first constriction 21 away from the pipe body 10. The second connecting flange 212 is annular, and is used to connect to the brake pressure relief circuit. The first constriction 21 is used for the hydraulic oil in the brake pressure relief circuit to enter the brake pressure relief circuit pipeline structure. The first constriction 21 can adjust the flow rate and flow of the hydraulic oil entering the brake pressure relief circuit, thereby adjusting the response time of the dynamic system, avoiding excessive impact during the braking process, and improving the passenger riding experience and comfort.

[0025] like Figure 2 and Figure 3As shown, the second constriction 22 is funnel-shaped, and a third connecting flange 221 is provided on the side of the second constriction 22 close to the pipe body 10. The third connecting flange 221 is annular, and the diameter of the third connecting flange 221 is adapted to the pipe diameter of the pipe body 10. The third connecting flange 221 is clamped in the pipe body 10 and is crimped by crimping, which makes it convenient to disassemble and assemble the second constriction 22. A fourth connecting flange 222 is provided on the side of the second constriction 22 away from the pipe body 10. The fourth connecting flange 222 is annular, and the fourth connecting flange 222 is used to connect to the brake pressure relief circuit. The second constriction 22 is used for the hydraulic oil in the brake pressure relief circuit to enter the brake pressure relief circuit pipeline structure. The second constriction 22 can adjust the flow rate and flow of the hydraulic oil entering the brake pressure relief circuit, thereby adjusting the response time of the dynamic system, avoiding excessive impact during the braking process, and improving the passenger riding experience and comfort.

[0026] The first constriction 21 and the second constriction 22 can be used to adjust the flow rate and flow of the hydraulic oil when entering and leaving the brake pressure relief circuit pipeline structure, thereby adjusting the response time of the dynamic system, avoiding excessive impact during the braking process, and improving the passenger riding experience and comfort. The flow rate and flow of the hydraulic oil can also be slightly adjusted according to the length of the pipeline body 10, thereby improving the reliability of the structure.

[0027] Functions and Effects of the Embodiments

[0028] The brake pressure relief circuit pipeline structure provided by the present invention includes a pipeline body 10 and a necking structure 20 arranged at both ends of the pipeline body 10. The necking structure 20 is movably connected to the pipeline body 10. The necking structure 20 can adjust the flow rate of the hydraulic oil in the brake pressure relief circuit, thereby adjusting the response time of the dynamic system, avoiding excessive impact during the braking process, and improving the passenger riding experience and comfort. The brake pressure relief circuit pipeline structure provided by the present invention can adjust the response time of the brake pressure relief circuit, reduce the impact during the braking process, and improve the passenger riding experience and comfort.

[0029] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. A brake pressure relief circuit pipeline structure, characterized in that: The invention comprises a pipe body (10) and necking structures (20) arranged at both ends of the pipe body (10), wherein the necking structures (20) are movably connected to the pipe body (10).

2. The brake pressure relief circuit piping structure according to claim 1, characterized in that: The necking structure (20) comprises a first necking (21) and a second necking (22), wherein the first necking (21) and the second necking (22) are respectively arranged at two ends of the pipe body (10).

3. The brake pressure relief circuit piping structure according to claim 2, characterized in that: A first connecting flange (211) is provided on a side of the first constriction (21) close to the pipe body (10), and the first connecting flange (211) is adapted to the pipe diameter of the pipe body (10).

4. The brake pressure relief circuit piping structure according to claim 3, characterized in that: A second connecting flange (212) is provided on the side of the first constriction (21) away from the pipe body (10).

5. The brake pressure relief circuit piping structure according to claim 4, characterized in that: A third connecting flange (221) is provided on a side of the second constriction (22) close to the pipe body (10), and the third connecting flange (221) is adapted to the pipe diameter of the pipe body (10).

6. The brake pressure relief circuit piping structure according to claim 5, characterized in that: A fourth connecting flange (222) is provided on the side of the second necking (22) away from the pipe body (10).

Images