Automobile pneumatic brake hose

Abstract

The utility model relates to the technical field of automobile parts, and discloses an automobile pneumatic brake hose which comprises a brake hose body, an inner rubber layer is arranged in the brake hose body, a reinforcing layer is arranged in the brake hose body, and the reinforcing layer is located at the outer end of the inner rubber layer. A flame-retardant layer is arranged in the brake hose body and located at the outer end of the reinforcing layer, and an outer rubber layer is arranged in the brake hose body. According to the automobile pneumatic brake hose, through the unique structural design of the brake hose body and the synergistic effect of the inner rubber layer, the reinforcing layers and the outer rubber layer, the compression resistance, the flexibility and the abrasion resistance of the hose are greatly improved, the compression resistance is effectively improved through the reinforcing layers woven by the multiple layers of high-strength steel wires, and the service life of the hose is prolonged. The chloroprene rubber material of the outer rubber layer ensures good flexibility and wear resistance, so that the hose can adapt to a complex working environment, the service life is prolonged, and the reliability of a brake system is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an automotive air brake hose. Background Technology

[0002] In automotive braking systems, air brake hoses play a crucial role, transmitting compressed air to effectively control the vehicle's braking system. However, existing air brake hoses suffer from several problems. Firstly, some hoses lack sufficient pressure resistance, easily bulging and cracking under prolonged high pressure, leading to air leakage and severely impacting braking performance and driving safety. For instance, in the frequent braking conditions of heavy trucks, ordinary air brake hoses cannot withstand frequent high-pressure impacts, resulting in a short lifespan. Secondly, existing air brake hoses lack flexibility. During vehicle operation, vibrations and relative movement of components cause frequent bending, and hoses with poor flexibility are prone to fatigue damage at bends, reducing their sealing performance and potentially causing braking system failure. Furthermore, some air brake hoses have unsatisfactory wear resistance. In the complex environment of the vehicle chassis, friction with surrounding components can damage the hose surface, shortening its lifespan. Therefore, developing a higher-performance automotive air brake hose is of significant practical importance. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] The purpose of this invention is to provide an automotive air brake hose to solve the problems mentioned in the background art, such as insufficient pressure resistance, poor flexibility, and poor wear resistance of existing air brake hoses.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automotive air brake hose, comprising a brake hose body, an inner rubber layer disposed inside the brake hose body, a reinforcing layer disposed inside the brake hose body, the reinforcing layer being located at the outer end of the inner rubber layer, a flame-retardant layer disposed inside the brake hose body, the flame-retardant layer being located at the outer end of the reinforcing layer, and an outer rubber layer disposed inside the brake hose body, the outer rubber layer being located at the outer end of the flame-retardant layer.

[0007] Preferably, a plurality of anti-slip protrusions are evenly and fixedly installed on the outer end of the brake hose body, and an installation adjustment collar is movably sleeved on the outer end of the brake hose body.

[0008] Preferably, a first connecting pipe seat is fixedly installed at the top end of the brake hose body, a first metal connecting pipe is fixedly installed at the top end of the first connecting pipe seat, and a first sealing gasket is sleeved on the outer end of the first metal connecting pipe.

[0009] Preferably, a first connecting nut is movably fitted onto the outer end of the first metal connecting tube, and the first connecting nut has a first internal connecting thread inside.

[0010] Preferably, a second connecting pipe seat is fixedly installed at the bottom end of the brake hose body, a second metal connecting pipe is fixedly installed at the bottom end of the second connecting pipe seat, and a second sealing gasket is sleeved on the outer end of the second metal connecting pipe.

[0011] Preferably, a second connecting nut is movably fitted onto the outer end of the second metal connecting tube, and the second connecting nut has a second internal connecting thread inside.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This automotive air brake hose, through its unique body structure design, with the synergistic effect of the inner rubber layer, reinforcing layer, and outer rubber layer, greatly improves the hose's pressure resistance, flexibility, and wear resistance. The multi-layer high-strength steel wire braided reinforcing layer effectively improves pressure resistance, while the neoprene rubber material of the outer rubber layer ensures good flexibility and wear resistance, enabling the hose to adapt to complex working environments, extending its service life, and improving the reliability of the braking system.

[0014] 2. The connection capability of this automotive air brake hose is improved by installing the first connecting nut and the first sealing washer. In actual use, the first connecting internal thread in the first connecting nut facilitates connection with other equipment, and the first sealing washer plays a role in sealing and preventing leakage.

[0015] 3. The anti-slip protrusions on the outer surface of this automotive air brake hose facilitate installation and maintenance, enhancing the efficiency and safety of operators. The flame-retardant layer between the reinforcing layer and the outer rubber layer adds an extra layer of safety protection to the automotive braking system, improving the safety of the vehicle in extreme conditions. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the three-dimensional partially disassembled structure of this utility model;

[0018] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a magnified structural diagram showing a partial detail of the present invention.

[0020] In the diagram: 1. Brake hose body; 2. Inner rubber layer; 3. Reinforcing layer; 4. Flame retardant layer; 5. Outer rubber layer; 6. Anti-slip protrusion; 7. Installation adjustment collar; 8. First connecting pipe seat; 9. First metal connecting pipe; 10. First sealing washer; 11. First connecting nut; 12. First connecting internal thread; 13. Second connecting pipe seat; 14. Second metal connecting pipe; 15. Second sealing washer; 16. Second connecting nut; 17. Second connecting internal thread. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution: an automotive air brake hose, comprising an air brake hose body 1, an inner rubber layer 2 inside the brake hose body 1, a reinforcing layer 3 inside the brake hose body 1 located at the outer end of the inner rubber layer 2, a flame-retardant layer 4 inside the brake hose body 1 located at the outer end of the reinforcing layer 3, and an outer rubber layer 5 inside the brake hose body 1 located at the outer end of the flame-retardant layer 4. The inner rubber layer 2 enhances the oil resistance and corrosion resistance of the brake hose body 1; the reinforcing layer 3 enhances the pressure resistance of the brake hose body 1; and the outer rubber layer 5 enhances the wear resistance and flexibility of the brake hose body 1.

[0023] Several anti-slip protrusions 6 are evenly fixedly installed on the outer end of the brake hose body 1. An installation adjustment collar 7 is movably sleeved on the outer end of the brake hose body 1. A first connecting pipe seat 8 is fixedly installed on the top end of the brake hose body 1. A first metal connecting pipe 9 is fixedly installed on the top end of the first connecting pipe seat 8. A first sealing washer 10 is sleeved on the outer end of the first metal connecting pipe 9. A first connecting nut 11 is movably sleeved on the outer end of the first metal connecting pipe 9. A first connecting internal thread 12 is opened inside the first connecting nut 11. A second connecting pipe seat 13 is fixedly installed on the bottom end of the brake hose body 1. A second metal connecting pipe 14 is fixedly installed on the bottom end of the second connecting pipe seat 13. A second sealing washer 15 is sleeved on the outer end of the second metal connecting pipe 14. A second connecting nut 16 is movably sleeved on the outer end of the second metal connecting pipe 14. A second connecting internal thread 17 is opened inside the second connecting nut 16. The first connecting internal thread 12 and the second connecting internal thread 17 in the first connecting nut 11 and the second connecting nut 16 facilitate the connection between the brake hose body 1 and the two ends of the equipment.

[0024] Working Principle: The inner rubber layer 2 enhances the oil and corrosion resistance of the brake hose body 1. Made of nitrile rubber, this layer effectively resists oil and chemicals carried by compressed air in the braking system, ensuring the airtightness of the hose and preventing leakage. The reinforcing layer 3 enhances the pressure resistance of the brake hose body 1. This layer is woven from multiple layers of high-strength steel wire, tightly wrapped around the inner rubber layer 2, providing strong pressure resistance. The multi-layered steel wire braid structure evenly distributes the stress generated by internal air pressure, preventing hose rupture due to excessive local pressure. The outer rubber layer 5 enhances the wear resistance and flexibility of the brake hose body 1. Made of neoprene rubber, this layer possesses excellent wear resistance, weather resistance, and flexibility. Its wear resistance effectively prevents damage from friction with surrounding components in the complex environment of the vehicle chassis; its weather resistance ensures the hose remains undamaged. Under different climatic conditions, such as high temperature, low temperature, and humidity, it can still maintain good performance. The flexibility allows the hose to adapt to the frequent bending caused by vehicle vibration and relative movement of components during vehicle operation, reducing fatigue damage caused by bending and extending its service life. The flame-retardant layer 4 improves the flame-retardant and fire-resistant efficiency of the brake hose body 1. The flame-retardant layer 4 is made of fiberglass cloth, which has good flame-retardant properties. In extreme cases such as a car fire, it can prevent the flame from spreading to the inside of the hose structure, avoiding more serious safety accidents caused by the combustion of the air brake hose and improving the safety of the vehicle braking system. The first connecting internal thread 12 and the second connecting internal thread 17 in the first connecting nut 11 and the second connecting nut 16 facilitate the connection between the brake hose body 1 and the two ends of the equipment. The position of the installation adjustment collar 7 can be moved according to the installation needs to facilitate the installation and fixation of the middle position of the brake hose body 1, improving the installation stability of the brake hose body 1.

[0025] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A motor vehicle air brake hose comprising a brake hose body (1), characterized in that: The inside of the brake hose body (1) is provided with an inner rubber layer (2), the inside of the brake hose body (1) is provided with a reinforcing layer (3), the reinforcing layer (3) is located at the outer end of the inner rubber layer (2), the inside of the brake hose body (1) is provided with a flame-retardant layer (4), the flame-retardant layer (4) is located at the outer end of the reinforcing layer (3), the inside of the brake hose body (1) is provided with an outer rubber layer (5), and the outer rubber layer (5) is located at the outer end of the flame-retardant layer (4).

2. An automotive air brake hose according to claim 1, characterized in that: The outer end of the brake hose body (1) is uniformly and fixedly provided with a plurality of anti-skid protrusions (6), and the outer end of the brake hose body (1) is movably and sleevedly provided with a mounting adjusting sleeve ring (7).

3. An automotive air brake hose according to claim 2, characterized in that: The top end of the brake hose body (1) is fixedly provided with a first connecting pipe base (8), the top end of the first connecting pipe base (8) is fixedly provided with a first metal connecting pipe (9), and the outer end of the first metal connecting pipe (9) is sleevedly provided with a first sealing washer (10).

4. An automotive air brake hose according to claim 3, characterized in that: The outer end of the first metal connecting pipe (9) is movably and sleevedly provided with a first connecting nut (11), and the inside of the first connecting nut (11) is provided with a first connecting internal thread (12).

5. An automotive air brake hose according to claim 4, characterized in that: The bottom end of the brake hose body (1) is fixedly provided with a second connecting pipe base (13), the bottom end of the second connecting pipe base (13) is fixedly provided with a second metal connecting pipe (14), and the outer end of the second metal connecting pipe (14) is sleevedly provided with a second sealing washer (15).

6. An automotive air brake hose according to claim 5, characterized in that: The outer end of the second metal connecting pipe (14) is movably and sleevedly provided with a second connecting nut (16), and the inside of the second connecting nut (16) is provided with a second connecting internal thread (17).

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