A bus front brake soft tube structure

Abstract

The utility model discloses a bus front brake cartilage pipe structure, including being used for with the first threaded joint of axle air chamber connection, be used for with the second threaded joint of vehicle's gas supply connection, the communication first threaded joint with second threaded joint's hose, the spring guard of setting on the hose, still include hollow U type steel pipe, first threaded joint set up in the import end of U type steel pipe, the hose with the outlet end buckle pressure forming of U type steel pipe, through the integrated design of U type steel pipe and first threaded joint, the structural strength of pipeline whole has been enhanced greatly, can effectively resist the vibration in the vehicle driving and the pressure impact of braking system, reduce the risk of pipeline loosening, and disconnect.

Description

Technical Field

[0001] This utility model relates to a front brake cartilage tube structure for buses, belonging to the field of brake hoses. Background Technology

[0002] In bus braking systems, the front brake hose is a key component connecting the braking system to the air chamber inlet, and its performance directly affects braking response efficiency and driving safety. Existing brake hoses have a structure with connectors at both ends and a hose in the middle.

[0003] When the front wheel space is small and the axle turning angle is large, it is difficult to match a brake hose of a suitable length. Under extreme conditions, the brake hose may be stretched, interfered with, or bent, resulting in brake hose damage and affecting driving safety. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a front brake cartilage tube structure for buses to solve the problem.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a bus front brake cartilage tube structure, including a first threaded connector for connecting to the axle air chamber, a second threaded connector for connecting to the air source of the vehicle, a hose connecting the first threaded connector and the second threaded connector, and a protective spring sleeved on the hose; it also includes a hollow U-shaped steel tube, with the first threaded connector located at the inlet end of the U-shaped steel tube; the hose is crimped to the outlet end of the U-shaped steel tube.

[0006] Preferably, the first threaded connector is integrally formed with the U-shaped steel pipe.

[0007] Preferably, both the first threaded connector and the second threaded connector have a liner core engaged inside, and the liner core has an extended end.

[0008] Preferably, an O-ring is nested on the liner.

[0009] Preferably, both the liner and the extension end are hollow.

[0010] Preferably, the liner extension end located at the second threaded connector extends into the hose through the second threaded connector.

[0011] Preferably, the extension end installed on the second threaded connector is multi-segmented, forming several annular reverse teeth for fixing with the hose.

[0012] Preferably, an iron sleeve is embedded in the flexible tube, and the iron sleeve is pressed together with the extension end.

[0013] Beneficial effects This utility model, through the integrated molding design of U-shaped steel pipe and first threaded joint, greatly enhances the overall structural strength of the pipeline, effectively resists the vibration of the vehicle during driving and the pressure impact of the braking system, and reduces the risk of pipeline loosening or detachment. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a front brake cartilage tube for a bus according to the present invention; Figure 2 This utility model Figure 1 A magnified view of a portion of the image. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] Please see Figure 1-2 This utility model provides a technical solution for a front brake cartilage tube structure for a bus, including a first threaded joint 1, a second threaded joint 2, a hose 3, a protective spring 4, a U-shaped steel pipe 5, a liner 6, an O-ring seal 62, and an iron sleeve 7. The first threaded connector 1 is used to achieve a threaded connection with the axle air chamber, providing an interface for gas to enter.

[0017] The second threaded connector 2 is used to connect to the output end of the vehicle's air source to receive the delivered gas.

[0018] The hose 3 is made of nitrile rubber, and its two ends are connected to the first threaded connector 1 and the second threaded connector 2 respectively. The outer surface of the hose 3 is fitted with a protective spring 4, which is made of stainless steel wire spirally wound to protect the hose 3 from external friction and collision damage, and at the same time enhance the tensile strength of the hose 3.

[0019] The U-shaped steel pipe 5 is made of hollow seamless stainless steel pipe bent into a U-shape, which has the characteristics of high strength and resistance to deformation. The first threaded connector 1 is set at the inlet end of the U-shaped steel pipe 5, and the first threaded connector 1 and the U-shaped steel pipe 5 are processed by integral molding process to ensure the sealing and structural strength of the connection between the two; the outlet end of the U-shaped steel pipe 5 is connected to the hose 3 by crimping molding process, and the outlet end of the U-shaped steel pipe 5 and the end of the hose 3 are tightly pressed together by special equipment (crimping machine).

[0020] The liner 6 is made of stainless steel and is hollow to ensure smooth gas flow. The liner 6 is fixed inside the first threaded connector 1 and the second threaded connector 2 by snap-fit. The hollow channel of the liner 6 is coaxially aligned with the channels of the connectors (first threaded connector 1, second threaded connector 2) and the hose 3 to form a continuous gas transmission path.

[0021] The O-ring 62 is nested in the groove on the outer wall of the liner 6. When the liner 6 is inserted into the joint, the O-ring 62 is tightly squeezed between the liner 6 and the inner wall of the joint, forming a radial sealing structure, which effectively prevents gas from leaking from the gap between the joint and the liner 6.

[0022] The liner 6 in the second threaded connector 2 has an extension end 61 extending towards the hose 3. This extension end 61 passes through the end of the second threaded connector 2 and extends into the hose 3. The extension end 61 is designed as a multi-segment structure, with several annular reverse teeth forming between adjacent segments. A metal sleeve 7 is embedded in the hose 3 at the position where the extension end 61 extends. The sleeve 7 fits tightly against the inner wall of the hose 3. After the extension end 61 of the liner 6 is inserted into the sleeve 7, a crimping process is used to tightly engage the sleeve 7 with the reverse teeth of the extension end 61. The anti-detachment structure of the reverse teeth securely fixes the liner 6 and the hose 3, preventing relative displacement. Furthermore, in one embodiment, a liner 6 is also provided in the outlet end of the U-shaped steel pipe 5 for crimping with the corresponding hose 3 (sleeve 7).

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A front brake cartilage tube structure for a bus, comprising a first threaded connector for connecting to the axle air chamber, a second threaded connector for connecting to the air source of the vehicle, a hose connecting the first threaded connector and the second threaded connector, and a protective spring sleeved on the hose; characterized in that: It also includes a hollow U-shaped steel pipe, with the first threaded connector located at the inlet end of the U-shaped steel pipe; the hose is crimped to the outlet end of the U-shaped steel pipe.

2. The bus front brake cartilage tube structure according to claim 1, characterized in that: The first threaded connector is integrally formed with the U-shaped steel pipe.

3. The bus front brake cartilage tube structure according to claim 1, characterized in that: Both the first threaded connector and the second threaded connector have a liner core engaged inside, and the liner core has an extended end.

4. The bus front brake cartilage tube structure according to claim 3, characterized in that: The liner is fitted with an O-ring.

5. The bus front brake cartilage tube structure according to claim 3, characterized in that: Both the liner and the extension end are hollow.

6. The bus front brake cartilage tube structure according to claim 5, characterized in that: The extension end located at the second threaded connector extends through the second threaded connector into the hose.

7. The bus front brake cartilage tube structure according to claim 6, characterized in that: The extension end installed on the second threaded connector is multi-segmented, forming several annular reverse teeth for securing with the hose.

8. The bus front brake cartilage tube structure according to claim 7, characterized in that: An iron sleeve is embedded in the flexible tube, and the iron sleeve is pressed together with the extension end.

Images