Passenger car brake pipe joint structure

Abstract

The utility model discloses a passenger car brake pipe joint structure which comprises a joint body, a fixing sleeve is arranged at the upper end of the joint body, a protrusion is arranged in the middle of the joint body, threads are arranged at the lower end of the joint body, a lining core is arranged in the joint body and is of a tubular structure, clamping sleeves are evenly distributed on the inner wall of the fixing sleeve, and clamping sleeve reverse teeth are arranged at the lower ends of the clamping sleeves. A brake pipeline is placed between the lining core and the clamping sleeve, a lining and a sealing ring are sequentially arranged at the bottom of the fixing sleeve, and the problems that the brake pipeline is low in assembly efficiency and poor in assembly quality are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of passenger car joints, and in particular relates to a passenger car brake pipe joint structure. Background Art

[0002] As an auxiliary component in the air brake system, the passenger car brake pipe joint is a key connector connecting the various circuits of the air brake system, so it has high requirements for air tightness.

[0003] In the past, ferrule-type joints have been used. The process of ferrule-type joints is relatively complicated and requires assembly workers to have a high level of skills and experience, especially in the pre-assembly of ferrule-type pipe joints. Currently, there are few pre-assembly machines and most of the pre-assembly is done manually, which has low work efficiency. In addition, it is affected by the workers' technical level and professional quality, and the assembly quality is unstable. Therefore, a passenger car brake pipe joint structure is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a passenger car brake pipe joint structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a passenger car brake pipe joint structure, comprising a joint body, a fixing sleeve is provided at the upper end of the joint body, a protrusion is provided in the middle part and a thread is provided at the lower end, a lining core is provided inside the joint body, the lining core is a tubular structure, the inner wall of the fixing sleeve is provided with evenly distributed clamping sleeves, the lower end of the clamping sleeve is provided with clamping sleeve reverse teeth, the brake pipe is placed between the lining core and the clamping sleeve, and a lining and a sealing ring are provided in sequence at the bottom of the fixing sleeve.

[0006] Preferably, the bottom of the raised end of the connector body is connected to a sealing ring.

[0007] Preferably, the bushing and the sealing ring are both fixedly connected to the inner wall of the joint body.

[0008] Preferably, the lower end of the connector body is threadedly connected to the air cylinder.

[0009] Preferably, when the brake pipe enters the joint, the lining core presses against the inner wall of the brake pipe, and the sealing ring presses against the outer wall of the brake pipe.

[0010] Technical effects and advantages of this utility model:

[0011] By setting the ferrule and the lining core, the brake pipe can be quickly inserted into the connector, which is simple, convenient and efficient.

[0012] By setting the ferrule reverse teeth, bushing and sealing ring, the brake pipeline can be stably fixed in the joint, while ensuring the sealing and improving the assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the joint structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the working principle of the connector of the utility model.

[0015] In the picture: 100 ferrule, 110 ferrule reverse gear, 200 fixing sleeve, 300 bushing, 400 sealing ring, 500 bushing core, 600 sealing ring, 700 connector body, 800 brake line, 900 air cylinder. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] The utility model provides Figure 1-2 The structure of a passenger car brake pipe joint shown in the figure includes a joint body 700, a fixing sleeve 200 is provided at the upper end of the joint body 700, a protrusion is provided in the middle and a thread is provided at the lower end, a lining core 500 is provided inside the joint body 700, the lining core 500 is a tubular structure, the inner wall of the fixing sleeve 200 is provided with evenly distributed clamping sleeves 100, the lower end of the clamping sleeve 100 is provided with a clamping sleeve reverse tooth 110, the brake line 800 is placed between the lining core 500 and the clamping sleeve 100, and the bottom of the fixing sleeve 200 is provided with a lining 300 and a sealing ring 400 in sequence.

[0018] Among them, the lower outer surface of the fixed sleeve 200 is fixedly connected to the protrusion of the joint body 700, and the sealing ring 400 is made of high and low temperature resistant rubber vulcanization molding. When the brake line 800 enters between the liner core 500 and the ferrule 100, the ferrule reverse tooth 110 will be bounced up.

[0019] In some specific embodiments of the present invention, the bottom of the raised end of the connector body 700 is connected to the sealing ring 600 .

[0020] Among them, the sealing ring is also made of high and low temperature resistant rubber vulcanization molding to improve the sealing effect and service life.

[0021] In some specific embodiments of the present invention, the bushing 300 and the sealing ring 400 are both fixedly connected to the inner wall of the joint body 700 .

[0022] The sealing ring 400 functions to ensure that the outer wall of the brake pipe 800 contacts and seals the sealing ring 400 .

[0023] In some specific embodiments of the present invention, the lower end of the connector body 700 is threadedly connected to the air cylinder 900 .

[0024] In some specific embodiments of the present invention, when the brake line 800 enters the joint, the lining core 500 presses against the inner wall of the brake line 800 , and the sealing ring 400 presses against the outer wall of the brake line 800 .

[0025] Among them, after the brake pipe 800 enters, due to the action of the ferrule reverse teeth 110, when it moves outward, the ferrule reverse teeth 110 can penetrate the surface of the brake pipe 800 to prevent it from leaving the connector body 700.

[0026] During actual use, the connector body 700 is first screwed into the air cylinder 900, the air cylinder 900 contacts the sealing ring 600, and then the sealing ring 600 is compressed to seal, and then the brake line 800 enters from the ferrule 100. When entering, the liner core 500 can support the inner wall of the brake line 800. When the brake line 800 slides out of the connector, the ferrule reverse teeth 110 will pierce the surface of the brake line 800 to prevent it from sliding out. At the same time, the outer wall of the brake line 800 contacts and seals with the sealing ring 400.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A passenger car brake pipe joint structure, comprising a joint body (700), characterized in that: The joint body (700) is provided with a fixing sleeve (200) at the upper end, a protrusion at the middle and a thread at the lower end, a lining core (500) is provided inside the joint body (700), the lining core (500) is a tubular structure, the inner wall of the fixing sleeve (200) is provided with evenly distributed clamping sleeves (100), the lower end of the clamping sleeve (100) is provided with clamping sleeve reverse teeth (110), a brake pipe (800) is placed between the lining core (500) and the clamping sleeve (100), and a lining sleeve (300) and a sealing ring (400) are provided in sequence at the bottom of the fixing sleeve (200).

2. A passenger car brake pipe joint structure according to claim 1, characterized in that: The bottom of the raised end of the joint body (700) is connected to the sealing ring (600).

3. The passenger car brake pipe joint structure according to claim 1, characterized in that: The bushing (300) and the sealing ring (400) are both fixedly connected to the inner wall of the joint body (700).

4. The passenger car brake pipe joint structure according to claim 1, characterized in that: The lower end of the joint body (700) is threadedly connected to the air storage cylinder (900).

5. The passenger car brake pipe joint structure according to claim 1, characterized in that: When the brake pipe (800) enters the joint, the lining core (500) abuts against the inner wall of the brake pipe (800), and the sealing ring (400) abuts against the outer wall of the brake pipe (800).

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