High safety brake steel throat

By introducing PTFE hoses, cross-braided steel wires, polyurethane wear-resistant layers, and silicone protective components into brake lines, the problem of damage caused by stone impacts and friction during use is solved, improving the safety and service life of brake lines.

CN224545949UActive Publication Date: 2026-07-24QINGDAO KST TECH INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO KST TECH INC
Filing Date
2025-10-19
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing steel brake lines are easily damaged by stone impacts and friction during use, which can cause the outer protective layer to be punctured or broken, posing a safety hazard. They are also prone to damage when they rub against the vehicle frame and suspension at bends.

Method used

A brake hose structure comprising an inner layer, a middle layer, and an outer protective layer was designed. The inner layer is made of polytetrafluoroethylene hose, the middle layer is composed of cross-braided steel wire and a reinforcing sleeve, and the outer protective layer is composed of a polyurethane wear-resistant layer and a buffer layer. Protective components are provided at the bends. The protective components consist of a silicone protective sleeve, a connecting strip, a hook surface, and a rough surface, which are used to buffer friction and prevent wear.

Benefits of technology

It effectively resists stone impacts and friction, extends service life, prevents steel wires from loosening, improves the stability and safety of brake steel lines, avoids damage to the outer protective layer, and extends the service life of the bending points.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high security brake steel throat, include: the throat pipe, the upper end of throat pipe is installed and is connected head no.
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Description

Technical Field

[0001] This utility model relates to the field of brake steel hose technology, specifically a high-safety brake steel hose. Background Technology

[0002] As a component of the braking system, the brake hose has a rubber tube inside, which is covered with high-strength steel wire and then an outermost anti-wear layer. It has strong resistance to expansion. In a typical original brake hose, when the driver presses the brake pedal, hydraulic oil flows inside the hose. The hydraulic oil compresses the rubber wall of the hose, causing it to expand and reducing the initial braking response. By covering the rubber tube with steel wire and an anti-wear layer, large-area expansion of the rubber wall can be prevented.

[0003] Existing steel brake lines are susceptible to impact from stones during use, which can easily puncture the outer protective layer and expose the stainless steel braided layer. In addition, when installing brake lines on the chassis, they need to be adapted to the steering and suspension layout, which involves multiple bends. These bends can rub against moving parts of the chassis, easily causing damage to the outer protective layer and fraying of the braided layer, potentially leading to safety hazards. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-safety brake hose. By installing a protective component at the bend of the hose, it can buffer the friction between the bend of the hose and the vehicle frame suspension, prevent the outer protective layer from wearing down due to friction, and extend the service life of the bend of the hose.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-safety brake steel hose, comprising: a hose, wherein a connector one is installed at the upper end of the hose, a connector two is fixedly connected at the lower end of the hose, and a rubber protective sleeve is fixedly connected to the outer wall of the hose on one side of the connector one and the connector two; the hose is divided into an inner layer, a middle layer and an outer protective layer, and a protective component is provided on the outer wall of the hose; The protective component includes a protective sleeve, a connecting strap fixedly connected to the outer wall of the protective sleeve, a hook surface installed at one end of the connecting strap, a rough surface installed on the outer wall of the protective sleeve, and an anti-slip strip installed on the inner wall of the protective sleeve. The protective sleeve is made of silicone material.

[0006] Preferably, the inner layer includes a flexible tube made of polytetrafluoroethylene material, and the outer wall of the flexible tube is coated with an adhesive.

[0007] Preferably, the intermediate layer includes steel wires and a reinforcing sleeve. The steel wires are multiple and are crisscrossed and woven together, and the steel wires cover the outer wall of the hose. The reinforcing sleeve is fitted onto the outer wall of the steel wires.

[0008] Preferably, the outer protective layer includes a wear-resistant layer and a buffer layer. The wear-resistant layer is made of polyurethane material and is sleeved on the outer wall of the reinforcing sleeve. The buffer layer is disposed on the inner wall of the wear-resistant layer. The surface of the buffer layer is provided with multiple through holes, and foam material is installed inside each of the multiple through holes.

[0009] Preferably, there are multiple anti-slip strips that are evenly distributed along the inner wall of the protective sleeve. Beneficial effects

[0010] This invention provides a high-safety brake line. Compared with the prior art, it has the following advantages: (1) The wear-resistant layer in the outer sheath resists the impact damage of stones and prevents the outer sheath from being punctured; the buffer layer can absorb the impact energy and prevent the impact force from being directly transmitted to the middle layer; the reinforcing sleeve wraps and restricts the steel wire to prevent the steel wire from becoming loose due to vibration, improves the stability of the steel wire, and prevents the hose from expanding.

[0011] (2) By fitting the protective component onto the bend of the throat tube, the friction between the bend of the throat tube and the frame suspension can be buffered, preventing the outer protective layer from being worn due to friction and extending the service life of the bend of the throat tube; by using the connecting strap, hook surface and rough surface together, the position of the protective sleeve on the outer wall of the throat tube can be adjusted. Attached Figure Description

[0012] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a cross-sectional view of the throat structure of this utility model; Figure 3 This is a front view of the protective component structure of this utility model; Figure 4 This is a structural diagram of the intermediate layer of this utility model; Figure 5 This is a structural diagram of the outer protective layer of this utility model.

[0013] In the diagram: 1. Hose; 2. Connector 1; 3. Connector 2; 4. Rubber protective sleeve; 10. Inner layer; 20. Middle layer; 30. Outer protective layer; 101. Hose; 201. Steel wire; 202. Reinforcing sleeve; 301. Wear-resistant layer; 302. Buffer layer; 303. Through hole; 304. Foam material; 5. Protective component; 501. Protective sleeve; 502. Connecting strap; 503. Hook surface; 504. Textured surface; 505. Anti-slip strip. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-5 This utility model provides a technical solution: a high-safety brake steel hose, comprising: a hose 1, a connector 2 installed at the upper end of the hose 1, a connector 3 fixedly connected at the lower end of the hose 1, and rubber protective sleeves 4 fixedly connected to the outer wall of the hose 1 on one side of the connector 2 and the connector 3. The hose 1 is divided into an inner layer 10, a middle layer 20 and an outer protective layer 30, and a protective component 5 is provided on the outer wall of the hose 1. The protective component 5 includes a protective sleeve 501. A connecting strap 502 is fixedly connected to the outer wall of the protective sleeve 501. A hook surface 503 is installed at one end of the connecting strap 502. A rough surface 504 is installed on the outer wall of the protective sleeve 501. An anti-slip strip 505 is installed on the inner wall of the protective sleeve 501. The protective sleeve 501 is made of silicone material. The protective component 5 facilitates the protection of the bends in the throat tube 1, preventing damage caused by friction between the bends and the external environment.

[0016] The inner layer 10 includes a hose 101 made of polytetrafluoroethylene (PTFE), and the outer wall of the hose 101 is coated with an adhesive. The hose 101 facilitates a stable flow of brake fluid.

[0017] The intermediate layer 20 includes steel wires 201 and a reinforcing sleeve 202. Multiple steel wires 201 are crisscrossed and braided, covering the outer wall of the hose 101. The reinforcing sleeve 202 is fitted over the outer wall of the steel wires 201. The braided steel wires 201 protect the hose 101, while the reinforcing sleeve 202 prevents the braided structure of the steel wires 201 from loosening.

[0018] The outer protective layer 30 includes a wear-resistant layer 301 and a buffer layer 302. The wear-resistant layer 301 is made of polyurethane material and is fitted onto the outer wall of the reinforcing sleeve 202. The buffer layer 302 is disposed on the inner wall of the wear-resistant layer 301. The surface of the buffer layer 302 is provided with multiple through holes 303, and foam material 304 is installed inside each of the multiple through holes 303. The wear-resistant layer 301 improves the wear resistance of the hose 1, preventing the steel wire 201 from being exposed due to damage to the outer protective layer 30. The buffer layer 301 prevents the impact force from being directly transmitted to the intermediate layer 20 and the inner layer 10, thereby protecting the hose 101 from damage.

[0019] There are multiple anti-slip strips 505, which are evenly distributed along the inner wall of the protective sleeve 501. The anti-slip strips 505 ensure that the protective sleeve 501 fits tightly against the bend of the throat 1, preventing slippage.

[0020] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0021] When using hose 1, connector 2 and connector 3 are connected to the brake master cylinder interface and brake slave cylinder interface respectively. The rubber protective sleeve 4 improves the sealing of the connection between connector 2, connector 3 and hose 1. At the same time, hose 101 delivers brake fluid, while the intermediate layer 20 can restrain the expansion of hose 101. Meanwhile, the outer protective layer 30 can protect hose 101, reduce external impact, and prevent the intermediate steel wire 201 from being exposed due to damage to the outer protective layer 30. When hose 1 needs to be bent, the protective sleeve 501 can be moved manually and placed on the bend of hose 1. Then, the hook surface 503 of connector 502 and the rough surface 504 are used to fix the protective sleeve 501 at the bend of hose 1. The high elasticity of silicone can buffer the impact of stones and friction of parts at the bend, and prevent the outer protective layer 30 from being worn at the bend.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-safety brake steel line, comprising: The throat tube (1) is characterized in that: a connector one (2) is installed at the upper end of the throat tube (1), a connector two (3) is fixedly connected at the lower end of the throat tube (1), and a rubber protective sleeve (4) is fixedly connected to the outer side wall of the throat tube (1) on one side of the connector one (2) and the connector two (3). The throat tube (1) is divided into an inner layer (10), a middle layer (20) and an outer protective layer (30). A protective component (5) is provided on the outer side wall of the throat tube (1). The protective component (5) includes a protective sleeve (501), a connecting strap (502) is fixedly connected to the outer wall of the protective sleeve (501), a hook surface (503) is installed at one end of the connecting strap (502), a rough surface (504) is installed on the outer wall of the protective sleeve (501), and an anti-slip strip (505) is installed on the inner wall of the protective sleeve (501). The protective sleeve (501) is made of silicone material.

2. The high-safety brake steel hose according to claim 1, characterized in that: The inner layer (10) includes a hose (101) made of polytetrafluoroethylene material, and the outer wall of the hose (101) is coated with an adhesive.

3. The high-safety brake steel line according to claim 1, characterized in that: The intermediate layer (20) includes steel wires (201) and a reinforcing sleeve (202). The steel wires (201) are multiple and are crisscrossed and woven together. The steel wires (201) cover the outer wall of the hose (101), and the reinforcing sleeve (202) is fitted onto the outer wall of the steel wires (201).

4. The high-safety brake steel line according to claim 1, characterized in that: The outer protective layer (30) includes a wear-resistant layer (301) and a buffer layer (302). The wear-resistant layer (301) is made of polyurethane material and is sleeved on the outer side wall of the reinforcing sleeve (202). The buffer layer (302) is disposed on the inner wall of the wear-resistant layer (301). The surface of the buffer layer (302) is provided with a plurality of through holes (303), and foam material (304) is installed inside each of the plurality of through holes (303).

5. The high-safety brake steel line according to claim 1, characterized in that: The number of anti-slip strips (505) is multiple and they are evenly distributed along the inner wall of the protective sleeve (501).