Combined train air brake and its manufacturing method

Abstract

The present application belongs to the technical field of inflatable outer wind screen, and particularly relates to a combined train inflatable wind screen, which comprises a wind screen main body, wherein the wind screen main body comprises air bags, the air bags are arranged longitudinally one by one on the outer wall of the train, and the two ends of the air bags are provided with air bag seats, the air bag seats are arranged at the end of the carriage, and the air bags connect the carriages at the two ends; the air bags are inflated and deflated through the air bag seats, and the air bags realize deformation function in all directions through the elasticity of the air bag body and the compressed gas in the air bags. The air bags and the air bag seats are arranged in groups, which can effectively improve the loading efficiency, the air bags realize deformation function in all directions through the elasticity of the air bag body and the compressed gas in the air bags, the speed of the train can be adjusted, and the dynamic performance of the vehicle can be better met.

Description

Technical Field

[0001] This invention belongs to the field of inflatable windshield technology, and specifically relates to a combined inflatable windshield for trains and its preparation method. Background Technology

[0002] Inflatable windshields are used to connect train carriages. They are typically made of rubber and function as inflatable windshields for cushioning and shock absorption. These windshields effectively reduce air resistance and noise between train carriages, improving comfort and energy efficiency. Furthermore, due to their rubber material, they possess elasticity and wear resistance, allowing for prolonged use and maintaining good performance.

[0003] The outer windshield is installed at the end of the vehicle body and can be seen as an extension of the outer surface of the connecting part of the vehicle body. This reduces the distance between the surfaces of the two vehicle bodies at the end position or completely connects them, weakening airflow separation and the intensity of airflow impacting the end wall surface. This effectively reduces air resistance and aerodynamic noise.

[0004] Currently, the main types of windshields used in high-speed trains in China are rubber capsule-type windshields and folding canopy-type windshields. Rubber capsule-type windshields achieve sealing at the train ends primarily through the compression of two capsules, offering advantages such as good sealing performance, easy disassembly and assembly, and simple maintenance.

[0005] A search revealed CN2020115631416, which discloses an inflatable windshield, comprising: an inflatable capsule, which is an integrated wave-shaped structure, with both ends screwed to connecting profiles, which are respectively fixedly connected to the vehicle body on both sides; the middle of the inflatable capsule has a wave-shaped structure. This structure effectively ensures the stability of the gas pressure inside the inflatable capsule and improves the airtightness between the vehicle bodies; the wave-shaped structure provides sufficient compression and extension, effectively extending the overall lifespan of the inflatable capsule. The inflation and deflation ports are correspondingly and staggered, enabling rapid inflation and deflation.

[0006] CN201410124195.0 discloses an inflatable outer windshield for high-speed trains. An integral, ring-shaped, inflatable rubber airbag is fixedly connected to the periphery of the front vehicle's end face, and another integral, ring-shaped, inflatable rubber airbag is fixedly connected to the periphery of the rear vehicle's end face, with the opposing surfaces of the two inflatable rubber airbags tightly fitted together. This type of outer windshield offers good airtightness, strong heat insulation and sound insulation performance, excellent rainproof performance, low aerodynamic drag, and good curve-crossing capability; it provides passengers with a safer and more comfortable walking environment and offers more effective protection for the vehicle's flexible connection devices.

[0007] CN201821810381.X discloses an automatic inflatable / deflated windshield and a high-speed train. The automatic inflatable / deflated windshield includes an inflatable capsule, the middle of which is designed to be foldable and pleated. The windshield also includes an inflation / deflation and pressure maintenance control system, which includes an inflation / deflation device connected to the inflatable capsule and a control device electrically connected to the inflation / deflation device. This utility model's automatic inflatable / deflation windshield is lightweight, has a long service life, can reduce vehicle interior noise, and improve passenger comfort.

[0008] The above-mentioned solutions will cause vibration during high-speed train operation. As the speed increases, the vibration and noise become more obvious, and even the windshield may flip outward, making them unsuitable for trains traveling at speeds above 400 km / h. Folding-canopy windshields can fully cover the end of the train, providing a better seal than compression-type windshields, but they also have disadvantages such as higher production and maintenance costs.

[0009] Therefore, there is a need to invent a combined inflatable train windshield that can effectively improve loading efficiency. It can achieve deformation in all directions through the elasticity of the bladder and the compressed gas inside the bladder, and can be adjusted according to the train's running speed to better meet the vehicle's dynamic performance. It has significant economic significance and commercial value in actual production and use. Summary of the Invention

[0010] To address the shortcomings of the existing technology, this invention discloses a combined inflatable windshield for trains. By innovating the structure and connection position of the airbag, the air pressure valve can adjust the air pressure inside the airbag according to the vehicle's speed data. At low speeds, the low air pressure results in low rigidity of the windshield assembly, making it easier to pass through tracks with small curvatures. At high speeds, the high air pressure improves the rigidity and stability of the windshield assembly.

[0011] Furthermore, the airbags and airbag seats are arranged in groups, which can effectively improve the loading efficiency. The elasticity of the airbag and the compressed gas inside the airbag can achieve deformation in all directions, which can be adjusted with the train speed to better meet the dynamic performance of the vehicle.

[0012] To address the above problems, the technical solution proposed by this invention is as follows: A combined inflatable train windshield is disclosed, comprising a windshield body, the windshield body including airbags, a plurality of airbags arranged longitudinally on the outer wall of the train, and airbag seats provided at both ends of the plurality of airbags, the airbag seats being located at the ends of the carriages, so that the airbags connect the two carriages; the airbags are inflated and deflated by the airbag seats, and the airbags achieve deformation in all directions by the elasticity of the airbag body and the compressed gas inside the airbags.

[0013] The combined inflatable windshield of the present invention divides the main body of the windshield into segments to form independent yet interconnected units. That is, several airbags are fixed into a unit by airbag seats, and the units are arranged one by one, making the entire windshield structure more flexible. The installation and maintenance of the units are also more convenient, safe to use, and highly reliable.

[0014] Furthermore, the airbag is a cylindrical rubber airbag with open ends, and its installation direction is consistent with the connection direction of the carriage. This design not only facilitates manufacturing but also effectively utilizes the deformation function of the rubber airbag. The airbag achieves deformation in all directions through the elasticity of the airbag body and the compressed gas inside.

[0015] Furthermore, a positioning block is provided on the side of the airbag seat near the airbag. The positioning block is a circular protrusion, and its outer edge abuts against the inner wall of the airbag, so that the airbag is embedded in the airbag seat. This structural design facilitates the effective installation of the airbag and the airbag seat, allows for an interference fit, and has good sealing performance and a certain load-bearing capacity.

[0016] Furthermore, the airbag seat is a ring structure, and the outer side of the ring structure is provided with a connecting part of the protruding outer edge of the ring structure; adjacent airbag seats are fitted with a clearance, and the position of the airbag seats can be adjusted according to the curvature of the train car. The outer edge of the airbag seat is set as a ring structure, which is beneficial to ensure that adjacent airbag seats will not interfere with each other when the airbag deforms, making the airbag combination flexible and enabling local flexible replacement.

[0017] Furthermore, the positioning block has a ventilation hole through which the airbag is inflated and deflated.

[0018] Furthermore, the airbag seats are connected to the air pressure valve through ventilation channels and share an external interface. Each airbag seat sharing an external interface allows for effective control and adjustment of the airbag's inflation and deflation, making the entire windshield operation intelligent and efficient.

[0019] Furthermore, the air pressure valve can adjust the air pressure inside the airbag according to the vehicle's speed data. At low speeds, the low air pressure results in low rigidity of the windshield assembly, making it easier to pass through routes with small curvatures. At high speeds, the high air pressure improves the rigidity and stability of the windshield assembly.

[0020] Another object of the present invention is to disclose a method for preparing the above-mentioned combined inflatable train windshield, comprising the following steps: S1. The number of airbags is determined based on the dimensions of the vehicle compartment; S2. Install the airbag seat at the end of the carriage, with the airbag seats between the two carriages arranged symmetrically; the airbag and the airbag seat are sealed together to form a unit, and multiple units are arranged to form the windshield body; S3. The air vent of the airbag seat is connected to the air pressure valve.

[0021] The advantages of this invention compared to the prior art are: The modular inflatable windshield of this invention divides the main body of the windshield into independent yet interconnected units. Several airbags are fixed to each unit via airbag seats, and these units are then arranged sequentially, making the entire windshield structure more flexible. Installation and maintenance of the units are convenient, and the windshield is safe, reliable, and cost-effective. This type of external windshield offers good airtightness, strong heat insulation and sound insulation, low aerodynamic drag, and good curve maneuverability. It provides passengers with a safer and more comfortable walking environment and offers more effective protection for the vehicle's flexible connection devices.

[0022] This invention can adjust the air pressure inside the airbag according to the vehicle's speed data. At low speeds, the low air pressure results in low rigidity of the windshield assembly, making it easier to pass through routes with small curvatures. At high speeds, the high air pressure improves the rigidity and stability of the windshield assembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the combined inflatable windshield for trains described in this invention.

[0024] Figure 2 This is a schematic diagram of the unit structure of the combined inflatable windshield for trains according to the present invention.

[0025] Figure 3 This is an exploded structural diagram of the unit body of the combined train inflatable windshield described in this invention.

[0026] Figure 4 This is a schematic diagram of the airbag seat structure of the unit body of the combined inflatable train windshield described in this invention.

[0027] In the diagram: 1-Airbag, 2-Airbag seat, 21-Positioning block, 22-Connecting part, 3-Ventilation channel, 4-External interface. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings. The drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Example 1

[0029] like Figures 1-4The combined inflatable windshield for trains in this embodiment innovates the structure and connection position of the airbag 1. The airbag 1 and the airbag seat 2 are arranged in groups to form a unit, which can effectively improve the loading efficiency. The elasticity of the airbag and the compressed gas inside the airbag can achieve deformation in all directions, which can be adjusted with the train running speed to better meet the dynamic performance of the vehicle.

[0030] The combined inflatable windshield of this embodiment specifically includes a windshield body, which includes airbags 1. Several airbags 1 are arranged longitudinally on the outer wall of the train. Airbag seats 2 are provided at both ends of the airbags 1 to form a unit. In this embodiment, the number of airbags 1 is determined according to the size of the car body, with 3 to 4 airbags 1 sharing a set of airbag seats 2 to improve loading efficiency. The airbag seats 2 are located at the ends of the car body, connecting the airbags 1 to the two ends of the car body. The airbags 1 are inflated and deflated through the airbag seats 2, and the airbags 1 achieve deformation in all directions through the elasticity of the airbag body and the compressed gas inside the airbag.

[0031] In this embodiment, the airbag 1 is a cylindrical rubber airbag with open ends. The installation direction of the cylindrical rubber airbag is consistent with the connection direction of the carriage. This not only facilitates processing but also effectively utilizes the deformation function of the rubber airbag. The airbag achieves deformation in all directions through the elasticity of the airbag body and the compressed gas inside the airbag.

[0032] In this embodiment, a positioning block 21 is provided on the side of the airbag seat 2 near the airbag. The positioning block is a circular protrusion with a venting channel 3, through which the airbag 1 is inflated and deflated. The outer edge of the airbag seat 2 abuts against the inner wall of the airbag 1, so that the airbag 1 is embedded in the airbag seat 2. This structural design facilitates the effective installation of the airbag and the airbag seat, allowing for an interference fit, providing good sealing and a certain load-bearing capacity. The airbag seat 2 is connected to the air pressure valve through the venting channel and shares a common external interface. Each airbag seat sharing a common external interface can effectively control and regulate the inflation and deflation of the airbag, making the entire windshield work intelligently and effectively.

[0033] Furthermore, the airbag seat 2 is a ring structure, and the outer side of the ring structure is provided with a connecting part 21 of the outer edge of the ring structure; adjacent airbag seats are fitted with a clearance, and the position of the airbag seat can be adjusted according to the curvature of the train car. The outer edge of the airbag seat is set as a ring structure, which is beneficial to ensure that adjacent airbag seats will not interfere with each other when the airbag deforms, making the airbag combination flexible and enabling local flexible replacement.

[0034] The combined inflatable windshield of the present invention divides the main body of the windshield into segments to form independent yet interconnected units. That is, several airbags are fixed into a unit by airbag seats, and the units are arranged one by one, making the entire windshield structure more flexible. The installation and maintenance of the units are also more convenient, safe to use, and highly reliable.

[0035] The air pressure valve can adjust the air pressure inside the airbag according to the vehicle's speed data. At low speeds, the low air pressure results in low rigidity of the windshield assembly, making it easier to pass through routes with small curvatures. At high speeds, the high air pressure improves the rigidity and stability of the windshield assembly. Example 2

[0036] This embodiment discloses a method for preparing the combined inflatable train windshield of Embodiment 1, including the following steps: S1. The number of airbags 1 is determined according to the size of the carriage.

[0037] S2. Install the airbag seat 2 at the end of the carriage, with the airbag seats 2 between the two carriages arranged symmetrically; the airbag 1 and the airbag seat 2 are sealed together to form a unit, and multiple units surround the windshield body.

[0038] S3. The air vent 3 of the airbag seat 2 is connected to the air pressure valve.

[0039] The combined inflatable windshield for trains in this embodiment is composed of numerous longitudinally arranged airbags. These airbags deform in all directions through the elasticity of their bodies and the compressed gas within them. The air pressure inside the airbags can be adjusted according to the train's speed, better meeting the vehicle's dynamic performance requirements. Furthermore, the airbags are flexibly assembled, allowing for flexible replacement of parts. The above are merely embodiments of the present invention, and the invention is not limited to the fields covered by this embodiment. Commonly known structures and characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the scope of the invention, and these should also be considered within the scope of protection of the invention. These modifications and improvements will not affect the effectiveness of the invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A combined inflatable windshield for trains, characterized in that, The system includes a windshield body, which includes an airbag (1). Several airbags (1) are arranged longitudinally on the outer wall of the train. Airbag seats (2) are provided at both ends of the airbags (1). The airbag seats (2) are located at the ends of the carriages, so that the airbags (1) are connected to the carriages at both ends. The airbags (1) are inflated and deflated through the airbag seats (2). The airbags (1) can deform in all directions through the elasticity of the airbag body and the compressed gas inside the airbag. The airbags (1) are cylindrical rubber airbags. The ends of the cylindrical rubber airbags are open. The installation direction of the cylindrical rubber airbags is consistent with the connection direction of the carriages. The airbag seat (2) is provided with a positioning block (21) on the side close to the airbag (1). The positioning block (21) has a ventilation channel (3) through which the airbag (1) is inflated and deflated. The airbag seat (2) is connected to the air pressure valve through the ventilation channel (3) and shares an external interface (4); the air pressure valve can adjust the air pressure in the airbag (1) according to the vehicle speed data. When the speed is low, the air pressure is low, the windshield assembly has low rigidity, and it is easy to pass through small curvature lines. When the speed is high, the air pressure is high, which improves the rigidity and stability of the windshield assembly.

2. The combined train inflatable windshield according to claim 1, characterized in that, The positioning block (21) is a circular protrusion, and its outer edge abuts against the inner wall of the airbag (1), so that the airbag (1) is embedded in the airbag seat (2).

3. The combined train inflatable windshield according to claim 2, characterized in that, The airbag seat (2) is a ring structure, and the outer side of the ring structure is provided with a connecting part (22) of the outer edge of the ring structure; the adjacent airbag seats (2) are fitted with a gap, and the position of the airbag seat (2) is adjusted according to the curvature of the train car.

4. A method for preparing a combined train inflatable windshield as described in any one of claims 1-3, characterized in that, Includes the following steps: S1. The number of airbags (1) is determined according to the size of the carriage; S2. The airbag seat (1) is embedded or attached to the end of the car body, and the airbag seats (1) between the two car bodies are symmetrically arranged; the airbag (1) and the airbag seat (2) are sealed together to form a unit body, and multiple units body surround the windshield body; S3. The air passage (3) of the airbag seat (2) is connected to the air pressure valve.

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