Hose connector, sealing system, braking system and vehicle

Abstract

The utility model discloses a hose joint, sealing system, brake system and vehicle, the hose joint includes joint body, oil pipe bolt and sealing gasket that are provided on the joint body, the first end of joint body is used for connecting brake hose, the second end of joint body is used for connecting brake hard tube, the first end of joint body is used for connecting the brake hose, and the second end of joint body is used for connecting the brake hard tube. The first end of the joint body is in threaded connection with the brake hard tube; the oil pipe bolt is arranged at the second end of the connector body and fixedly connected with the sealing gasket. In the hose connector provided by the utility model, the oil pipe bolt is arranged at the second end of the connector body, and the oil pipe bolt is fixedly connected with the sealing gasket; the sealing gasket can freely rotate around the screw without falling off, so that the operation of assembling the gasket by an operator is omitted, the potential gasket pollution is avoided, the production efficiency is improved, and the sealing performance is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile braking, in particular to a hose joint, a sealing system, a braking system and a vehicle. Background Art

[0002] The transmission of automobile braking force mainly relies on the master brake cylinder to apply pressure to the oil to push the caliper piston to the brake disc, thereby achieving braking. Therefore, the reliability of the brake line oil seal is the basis of braking and is very important. At present, the sealing system of the brake line and the caliper is mainly composed of brake hose joints, oil pipe bolts, and sealing gaskets. The basic principle of the sealing system is: tighten the oil pipe bolts to generate preload, connect the hose joint to the caliper, and rely on sealing gaskets to achieve the sealing of the oil pipe.

[0003] In the existing technical solutions, sealing gaskets need to be installed manually, which is a cumbersome and inefficient process and has a great impact on the production rhythm of the workshop. In addition, the sealing gaskets have poor stain resistance and an unstable friction coefficient, which has a significant impact on the sealing performance. The sealing ring width of the hose joint is not strong enough, which can easily cause oil leakage. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a hose connector and a vehicle to solve the technical problem of poor sealing effect of the connector assembly existing in the prior art.

[0005] The first aspect of the utility model provides a hose connector, comprising a connector body, an oil pipe bolt and a sealing gasket arranged on the connector body, wherein the first end of the connector body is used to connect a brake hose, the second end of the connector body is used to connect a brake pipe, and the first end of the connector body and the brake pipe are threadedly connected; the oil pipe bolt is arranged at the second end of the connector body, and the oil pipe bolt is fixedly connected to the sealing gasket.

[0006] In an optional implementation, the oil pipe bolt and the sealing gasket are an assembly structure.

[0007] In an optional embodiment, the sealing gasket is fixed to the oil pipe bolt by a thread rolling process.

[0008] In an optional embodiment, the surface of the sealing gasket is provided with an electroplating coating for corrosion protection.

[0009] In an optional embodiment, the electroplated coating is a zinc-tin passivated electroplated coating.

[0010] In an optional embodiment, the outer diameter of the second end of the connector body is 18 mm, and the single-side wall thickness of the first end of the connector body is 3.5 mm.

[0011] In an optional embodiment, the end surface roughness of the second end of the connector body is 1.6.

[0012] A second aspect of the utility model provides a sealing system, comprising the above-mentioned hose connector, wherein one end of the hose connector is connected to a brake hose, and the other end of the hose connector is connected to a caliper.

[0013] A third aspect of the present invention provides a brake system, comprising the above-mentioned sealing system and caliper.

[0014] A fourth aspect of the present invention provides a vehicle comprising the above-mentioned braking system.

[0015] In the hose connector provided by the utility model, the oil pipe bolt is arranged at the second end of the connector body, and the oil pipe bolt is fixedly connected to the sealing gasket; the sealing gasket can rotate freely around the screw rod without falling off, thus eliminating the need for operators to assemble the gasket by themselves, avoiding potential gasket contamination, improving production efficiency, and enhancing sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of a hose connector in an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the oil pipe bolt and the sealing gasket in the embodiment of the utility model.

[0019] Joint body 1; oil pipe bolt 2; sealing gasket 3; first end 4; second end 5. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0022] See also Figure 1 The utility model provides a sealing system, including a hose connector, one end of which is connected to a brake hose, and the other end of which is connected to a caliper. The caliper connection port of the hose connector is a T-tube structure, similar to a three-way valve. The hydraulic pressure generated by the master brake cylinder is transmitted to the hose through the brake hard pipe, and then acts on the caliper piston, thereby realizing the braking function. The hose connector includes a connector body 1, an oil pipe bolt 2 and a sealing gasket 3 arranged on the connector body 1. The sealing gasket 3 is a mechanical hydraulic sealing element, which is generally made of a softer metal material, and pure copper is the main material used. It is installed on the upper and lower end surfaces of the hose connector to play a sealing role.

[0023] The oil pipe bolt 2 is a threaded fastener, a bolt with oil conduction function, with a hole for oil flow inside the screw, and an oil hole is opened on the outer surface of the rod to facilitate oil flow; its main function is to fix the hose connector and provide an oil flow channel. The first end 4 of the connector body 1 is used to connect the brake hose (not shown), and the second end 5 of the connector body 1 is used to connect the brake hard pipe (not shown), and the first end 4 of the connector body 1 and the brake hard pipe are threadedly connected; the oil pipe bolt 2 is arranged at the second end 5 of the connector body 1.

[0024] The brake hose is a hose part for transmitting brake fluid. One end of the hose is connected to the brake caliper through a hose connector, and the other end is connected to the brake pipe through an internal thread. The hydraulic pressure generated by the master brake cylinder is transmitted to the hose through the brake pipe, and then acts on the caliper piston, thereby realizing the braking function.

[0025] Furthermore, the oil pipe bolt 2 is fixedly connected to the sealing gasket 3. In some embodiments, the oil pipe bolt 2 and the sealing gasket 3 are an assembly structure; that is, the sealing gasket 3 cannot fall off the oil pipe bolt 2, forming an assembly body. For example, the sealing gasket 3 is fixed to the oil pipe bolt 2 by a thread rolling process.

[0026] In the prior art, the sealing gasket is an independent part, which is manually inserted into the bolt screw and the lower part of the hose connector during assembly. The installation process is not only time-consuming and inefficient, but also the gasket is easy to fall to the ground, causing pollution to the parts. In the technical solution of the utility model, the sealing gasket 3 is integrated onto the oil pipe bolt 2 through the thread rolling technology, so that it becomes an assembly body, and the sealing gasket 3 can rotate freely around the screw of the oil pipe bolt 2 without falling off. This saves the operator from the operation of assembling the gasket by himself, avoids potential gasket pollution, and improves production efficiency. In the solution of the utility model, the processing process of the oil pipe bolt 2 is changed. Before the thread rolling of the oil pipe bolt 2, the sealing gasket 3 and the oil pipe bolt 2 are assembled by a vibrating machine, and after forming a whole, they are transferred to the thread rolling equipment for thread rolling. After the rolling is completed, the protruding thread part will limit the falling of the sealing gasket 3, so this process can fix the gasket to the bolt rod and rotate freely without falling off.

[0027] Furthermore, in the prior art, the sealing gasket 3 is usually made of pure copper as a sealing element, and its surface cleanliness, friction coefficient, and hardness are crucial to the sealing performance of the hose connector. However, a gasket made of pure copper is very susceptible to oxidation corrosion in a humid environment, generating bronze rust. Once such a gasket is assembled into the system, it will contaminate the sealing connection surface, forming a tiny gap that causes oil leakage.

[0028] In order to solve the above technical problems, the surface of the sealing gasket 3 in the utility model is provided with an electroplating coating for corrosion prevention. In some embodiments, the electroplating coating is a zinc-tin passivated electroplating coating. The utility model adds a zinc-tin passivated electroplating coating on the surface of the sealing gasket 3. This type of coating has strong corrosion resistance, lower hardness and a stable friction coefficient. It not only effectively prevents surface rust pollution and increases cleanliness, but also the softer coating can better form a sealing ring under the pre-tightening force of the bolt to ensure the sealing of the joint.

[0029] Furthermore, the hose connector is a component directly connected to the caliper, and is fixed to the caliper connection seat by the pre-tightening force generated by tightening the bolts. Therefore, the thickness of the sealing ring under the hose connector is directly related to the strength of the sealing performance. In the prior art, the outer diameter of the hose connector is 16mm, the inner hole diameter is 11mm, and the single-side wall thickness is 2.5mm. In the utility model, the outer diameter of the second end 5 of the connector body 1 is 18mm, and the single-side wall thickness of the first end 4 of the connector body 1 is 3.5mm. On the basis of not changing the inner hole diameter, the utility model increases the outer diameter by 2mm to 18mm, and makes the single-side wall thickness reach 3.5mm. The widened sealing ring can greatly improve the sealing performance.

[0030] In addition, the mounting surface of the caliper is machined and is also an important part of the sealing process. A rough mounting surface will produce a large number of tiny gaps, which will weaken the sealing performance. After a large number of tests and verifications, the roughness of the mounting surface of the caliper has been increased from the original 3.2 to 1.6, which can greatly improve the sealing performance; therefore, the end surface roughness of the second end 5 of the connector body 1 is 1.6.

[0031] The utility model also provides a braking system, including a sealing system and a caliper, wherein the sealing system is connected to the caliper. The sealing system can be seen from the above description, and will not be repeated here, but it should be understood that the braking system includes a hose connector, the hose connector includes a connector body 1, an oil pipe bolt 2 and a sealing gasket 3 arranged on the connector body 1, wherein the first end 4 of the connector body 1 is used to connect the brake hose, the second end 5 of the connector body 1 is used to connect the brake hard pipe, and the first end 4 of the connector body 1 and the brake hard pipe are threadedly connected; the oil pipe bolt 2 is arranged at the second end 5 of the connector body 1, and the oil pipe bolt 2 is fixedly connected to the sealing gasket 3.

[0032] Among them, the oil pipe bolt 2 and the sealing gasket 3 are an assembly structure. The sealing gasket 3 is fixed on the oil pipe bolt 2 by a thread rolling process. The surface of the sealing gasket 3 is provided with an electroplating coating for corrosion protection. The electroplating coating is a warm zinc-tin passivated electroplating coating. The outer diameter of the second end 5 of the joint body 1 is 18mm, and the single-side wall thickness of the first end 4 of the joint body 1 is 3.5mm. The end surface roughness of the second end 5 of the joint body 1 is 1.6.

[0033] The utility model also provides a vehicle, which includes the above-mentioned braking system. The details can be referred to the above description and will not be repeated here.

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hose connector, characterized in that: It includes a joint body, an oil pipe bolt and a sealing gasket arranged on the joint body, wherein the first end of the joint body is used to connect the brake hose, the second end of the joint body is used to connect the brake hard pipe, and the first end of the joint body and the brake hard pipe are threadedly connected; the oil pipe bolt is arranged at the second end of the joint body, and the oil pipe bolt is fixedly connected to the sealing gasket.

2. The hose connector according to claim 1, characterized in that The oil pipe bolt and the sealing gasket are an assembly structure.

3. The hose connector according to claim 1, characterized in that The sealing gasket is fixed on the oil pipe bolt through a thread rolling process.

4. The hose connector according to claim 1, characterized in that The surface of the sealing gasket is provided with an electroplating coating for corrosion prevention.

5. The hose connector according to claim 4, characterized in that The electroplating coating is a warm zinc-tin passivated electroplating coating.

6. The hose connector according to claim 1, characterized in that: The outer diameter of the second end of the joint body is 18 mm, and the single-side wall thickness of the first end of the joint body is 3.5 mm.

7. The hose connector according to claim 1, characterized in that The end surface roughness of the second end of the joint body is 1.

6.

8. A sealing system, characterized in that: A hose connector according to any one of claims 1 to 7, wherein one end of the hose connector is connected to a brake hose, and the other end of the hose connector is connected to a caliper.

9. A braking system, characterized in that: Includes the sealing system and caliper as described in claim 8.

10. A vehicle, characterized in that: It comprises the braking system as claimed in claim 9.

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