Plastic inlaid metal oil cylinder oil pressure brake

Abstract

This utility model relates to a hydraulic brake lever with a plastic-embedded metal cylinder, comprising a brake lever body (1), a cylinder (5), a handle (4), a latch (2), and an oil cap (3). The brake lever body (1), handle (4), latch (2), and oil cap (3) are all made of plastic. The cylinder (5) is made of metal and is embedded and fixed inside the brake lever body (1). The handle (4) is hinged to the brake lever body (1) and is used to drive the cylinder (5) to generate hydraulic pressure. The latch (2) is located on the brake lever body (1) and is used to fix the brake lever to the handlebars. The oil cap (3) is installed above the brake lever body (1) and is used to seal the oil inlet of the cylinder (5). This utility model has a reasonable structure, is lightweight, has a beautiful appearance, and is easy to manufacture, thus having good market application prospects.

Description

Technical Field

[0001] This utility model relates to a hydraulic brake lever, specifically a hydraulic brake lever with a plastic-embedded metal cylinder. Background Technology

[0002] Currently, most hydraulic disc brake systems on bicycles on the market use hydraulic brake levers made of metal. The lever body, cylinder, and related components are mostly made of aluminum alloy or other metals. While these metal hydraulic brake levers offer good strength, they suffer from drawbacks such as increased weight, complex manufacturing processes, and higher production costs. Especially in terms of weight reduction and surface finishing, metal brake levers typically require multiple surface treatment processes, including grinding, wet grinding, powder coating, or anodizing, which not only increases manufacturing time but also production costs.

[0003] Furthermore, with the development of cycling, lightweighting of the entire bicycle has become an important demand for users. Existing metal brake levers are difficult to match the weight of plastic materials, and their appearance design is somewhat limited, as they are not as easy to achieve diverse shapes and rich surface effects through injection molding as plastic materials.

[0004] Therefore, there is an urgent need for a new type of hydraulic brake lever structure that is made of plastic material and can be reasonably combined with metal cylinders in terms of structure, so as to ensure the overall strength of the brake lever, reduce weight, and simplify the appearance processing process, so as to meet the market demand of modern bicycles for lightweight, aesthetics and low cost. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a hydraulic brake lever with a plastic-embedded metal cylinder, which effectively overcomes the shortcomings of existing technologies.

[0006] This utility model is achieved through the following technical solution: a hydraulic brake lever with a plastic-embedded metal cylinder, comprising:

[0007] Brake lever body, wherein the brake lever body is made of plastic material;

[0008] The hydraulic cylinder, made of metal, is embedded and fixed inside the brake lever body and is used to store and transfer hydraulic oil.

[0009] A handle, made of plastic material, is hinged to the brake lever body and is used to drive the hydraulic cylinder to generate hydraulic pressure.

[0010] The latch, made of plastic material, is located on the brake lever body and is used to install and fix the brake lever to the handlebars.

[0011] The oil cap, made of plastic, is installed above the brake lever body and is used to seal the oil inlet of the oil cylinder.

[0012] As a preferred technical solution, the brake lever body is manufactured by injection molding and has an inner mounting cavity for accommodating and positioning the hydraulic cylinder.

[0013] As a preferred technical solution, the hydraulic cylinder and the brake lever body are fixed together by an interference fit.

[0014] As a preferred technical solution, a sealing ring is provided between the oil cylinder and the brake lever body to improve sealing performance and prevent hydraulic oil leakage.

[0015] As a preferred technical solution, the outer surface of the brake lever body is a smooth surface formed by injection molding.

[0016] The beneficial effects of this utility model are: firstly, the brake lever body, handle, lock and oil cap are all made of plastic material, which significantly reduces the overall weight, meets the design requirements of lightweight bicycles, and facilitates riding and control.

[0017] Secondly, plastic parts can be molded in one piece through injection molding, resulting in a beautiful and smooth appearance. This eliminates the need for multiple surface treatment processes such as grinding, water grinding, powder spraying, or anodizing required for metal brake levers, thus reducing manufacturing costs and process complexity.

[0018] Thirdly, by embedding a metal cylinder inside the plastic brake lever body, this utility model not only has good structural strength and pressure resistance, but also ensures the sealing reliability of the hydraulic transmission, thereby improving the safety and stability of braking performance.

[0019] Fourth, the overall structure of this utility model is reasonably designed, the components are tightly connected and easy to assemble, which facilitates large-scale production and has high economic benefits and market promotion value. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional schematic diagram of the present invention. Detailed Implementation

[0023] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0024] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0025] like Figure 1 and Figure 2 As shown, this utility model discloses a hydraulic brake lever with a plastic-embedded metal cylinder, comprising a brake lever body 1, a cylinder 5, a handle 4, a locking buckle 2, and an oil cap 3. The brake lever body 1 is made of plastic material and is formed in one piece through injection molding, resulting in a lightweight design and a smooth, aesthetically pleasing outer surface, reducing the need for subsequent surface treatment processes. An installation cavity is provided inside the brake lever body 1 to accommodate and position the cylinder 5. The shape of the installation cavity is adapted to the shape of the cylinder 5, allowing the cylinder 5 to be securely installed inside the brake lever body 1, ensuring the overall strength and structural stability of the brake lever.

[0026] The hydraulic cylinder 5 is made of metal, possessing high strength and pressure resistance. It stores hydraulic oil and transmits hydraulic pressure during braking, thereby controlling the bicycle disc brake system. The hydraulic cylinder 5 is fixed to the brake lever body 1 via an interference fit. This interference fit ensures that the cylinder 5 will not loosen or shift under hydraulic pressure. A sealing ring is also installed between the brake lever body 1 and the hydraulic cylinder 5 to improve sealing performance, prevent hydraulic oil leakage, and ensure the normal operation of the hydraulic system and the reliability of the brakes.

[0027] The handlebar 4 is also made of plastic. One end of it is hinged to the brake lever body 1. During use, the rider pulls or releases the handlebar 4, causing it to rotate around the hinge point. This drives the piston in the hydraulic cylinder 5 to generate hydraulic pressure. The hydraulic pressure is transmitted to the disc brake caliper through the oil pipe, completing the braking action on the bicycle wheel. The use of plastic material for the handlebar 4 not only reduces weight but also provides good toughness and feel, making it more comfortable to use.

[0028] The locking clip 2 is made of plastic and is installed on the brake lever body 1 to secure the brake lever to the bicycle handlebars. The design of the locking clip 2 allows the brake lever to be installed or removed easily and quickly, facilitating maintenance or replacement.

[0029] The oil cap 3, also made of plastic, is installed above the brake lever body 1 and is used to seal the oil inlet of the hydraulic cylinder 5. The oil cap 3 prevents dust, moisture, or other impurities from entering the hydraulic cylinder 5, ensuring the cleanliness and normal operation of the hydraulic system. At the same time, the oil cap 3 has a compact structure and is easy to disassemble, allowing users to easily open it for operation when adding hydraulic oil or performing maintenance.

[0030] This invention achieves a lightweight design for the brake lever by embedding a metal cylinder 5 inside the plastic brake lever body 1, while ensuring the required strength and sealing performance during use. The overall structure is rationally designed, with tight connections between components, and the manufacturing process is simple, which helps reduce production costs and has good market application prospects.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A hydraulic brake lever with a plastic-embedded metal cylinder, characterized in that, include: Brake lever body (1), wherein the brake lever body (1) is made of plastic material; The hydraulic cylinder (5) is made of metal material and is embedded and fixed inside the brake lever body (1) for storing and transmitting hydraulic oil. Handle (4), which is made of plastic material, is hinged to the brake lever body (1) and is used to drive the oil cylinder (5) to generate hydraulic pressure; The latch (2) is made of plastic material and is set on the brake lever body (1) for fixing the brake lever to the handlebar; Oil cap (3), which is made of plastic material, is installed above the brake lever body (1) and is used to seal the oil inlet of the oil cylinder (5).

2. The plastic inlaid metal oil cylinder of the hydraulic brake according to claim 1, characterized in that: The brake lever body (1) is made by injection molding and has an installation cavity on its inner side for accommodating and positioning the hydraulic cylinder (5).

3. The plastic inlaid metal oil cylinder of the hydraulic brake handle according to claim 1, characterized in that: The hydraulic cylinder (5) and the brake lever body (1) are fixed together by an interference fit.

4. The plastic inlaid metal oil cylinder of the hydraulic brake handle according to claim 1, characterized in that: A sealing ring is provided between the oil cylinder (5) and the brake lever body (1) to improve the sealing performance and prevent hydraulic oil leakage.

5. The plastic inlaid metal oil cylinder of the hydraulic brake handle according to claim 1, characterized in that: The outer surface of the brake lever body (1) is a smooth surface formed by injection molding.

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