Tensile brake cable

Abstract

The utility model discloses a tensile type brake cable which comprises an outer sleeve, an outer threaded pipe and a cable body, the outer threaded pipe is fixedly connected to one end of the outer sleeve, the cable body is arranged in the outer sleeve and the outer threaded pipe in a penetrating mode, and the cable body comprises a main steel wire, an auxiliary steel wire, a wrapping layer A, a metal sleeve and a wrapping layer B, the auxiliary steel wire is twisted and wound on the outer side of the main steel wire, and the wrapping layer A sleeves the outer side of the auxiliary steel wire; the auxiliary steel wire is twisted and wound on the outer side of the main steel wire, and the wrapping layer A, the metal sleeve and the wrapping layer B are sequentially arranged on the outer side of the auxiliary steel wire, so that the wire body has various structures capable of bearing tensile force, the problem of insufficient tensile property caused by a single structure is avoided, and meanwhile, various tensile structures are combined and fixed through the assembling component, so that the tensile property of the wire body is improved. And the stability and integrity of the internal structure of the cable body are guaranteed, the multiple layers of structures cannot loosen, and the tensile property of the brake cable is further guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle accessories, and in particular relates to a tensile-resistant brake line. Background Art

[0002] Bicycles are a common means of transportation in our lives. The bicycle brake system is the key to the safe driving of the bicycle. The brake cable is one of the essential accessories in the brake system. It controls the speed of the bicycle together with accessories such as the brake handle and brake clamp.

[0003] Traditional brake lines are generally composed of an internal steel wire and a rubber hose wrapped around the outside of the steel wire. Their structure is relatively simple and their tensile performance is average. The brake lines themselves are prone to deformation and elongation. When they are elongated and thinned, they will not only affect the braking effect, but also have the risk of breaking. Therefore, it is necessary to design a new tensile-resistant brake line to solve this problem. Utility Model Content

[0004] The utility model aims to provide a tensile brake cable to solve the problem that the existing brake cable structure is relatively simple and the tensile performance is insufficient as mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tensile brake line, comprising an outer sleeve, an externally threaded tube and a line body, the externally threaded tube is fixedly connected to one end of the outer sleeve, the line body is arranged through the outer sleeve and the externally threaded tube, the line body comprises a main steel wire, an auxiliary steel wire, a wrapping layer A, a metal sleeve and a wrapping layer B, the auxiliary steel wire is twisted and wound on the outside of the main steel wire, the wrapping layer A is sleeved on the outside of the auxiliary steel wire, the metal sleeve is sleeved on the outside of the wrapping layer A, and the wrapping layer B is sleeved on the outside of the metal sleeve, the two ends of the line body are symmetrically connected with end heads, an assembly component is connected between the end of the line body and the end head, the assembly component comprises a connecting disk, an inner cavity, a through hole and an assembly metal block, the assembly metal block is welded and fixed to the ends of the main steel wire and the auxiliary steel wire.

[0006] Preferably, the cross-sections of the wrapping layer A, the metal sleeve and the wrapping layer B are all annular structures, and the inner wall of the wrapping layer A is in close contact with the outer surface of the auxiliary steel wire.

[0007] Preferably, the inner wall of the metal sleeve is in close contact with the outer surface of the wrapping layer A, and the inner wall of the wrapping layer B is in close contact with the outer surface of the metal sleeve.

[0008] Preferably, the connection disk is fixed on the surface of the end head, and both ends of the wrapping layer A, the metal sleeve and the wrapping layer B are fixedly connected to the connection disk.

[0009] Preferably, the inner cavity is opened inside the connecting plate, the through hole is opened through the outside of the inner cavity, the assembling metal block is arranged inside the inner cavity, and the ends of the main steel wire and the auxiliary steel wire pass through the through hole and are fixed to the assembling metal block.

[0010] Preferably, a sealing assembly is provided at the outer ends of the outer sleeve and the external threaded tube, and the sealing assembly includes a sealing ring, an adhesive layer and a rubber ring. The sealing ring is bonded to the outer end surfaces of the outer sleeve and the external threaded tube through the adhesive layer, and the rubber ring is arranged on the inner wall of the sealing ring, and the rubber ring is in contact with the outer surface of the wire body.

[0011] Preferably, the sealing assembly further comprises a docking insert and a docking slot, wherein the docking insert is fixed to the outer end surfaces of the outer sleeve and the external threaded tube and inserted into the interior of the docking slot opened on one side of the sealing collar.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By twisting and winding the auxiliary steel wire on the outside of the main steel wire, and sequentially arranging the wrapping layer A, the metal casing and the wrapping layer B on the outside of the auxiliary steel wire, the line body has a variety of structures that can withstand tension, avoiding the problem of insufficient tensile performance due to a single structure. At the same time, the various tensile structures are combined and fixed through assembly components to ensure the stability and integrity of the internal structure of the line body, so that the multi-layer structure will not loosen, further ensuring the tensile performance of the brake line. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 For this utility model Figure 1 Lateral cross-sectional view of the midline body;

[0016] Figure 3 For this utility model Figure 1 A side cross-sectional view of the assembly;

[0017] Figure 4 For this utility model Figure 1 a side cross-sectional view of the middle seal assembly;

[0018] In the figure: 100, outer sleeve; 200, external threaded pipe; 300, wire body; 301, main steel wire; 302, auxiliary steel wire; 303, wrapping layer A; 304, metal sleeve; 305, wrapping layer B; 400, end; 500, assembly component; 501, connecting plate; 502, inner cavity; 503, through hole; 504, assembly metal block; 600, sealing component; 601, sealing ring; 602, adhesive layer; 603, rubber ring; 604, docking plug; 605, docking slot. DETAILED DESCRIPTION

[0019] 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a tensile brake line, comprising an outer sleeve 100, an externally threaded tube 200 and a line body 300, the externally threaded tube 200 is fixedly connected to one end of the outer sleeve 100, a nut is threadedly connected to the externally threaded tube 200, the line body 300 is arranged inside the outer sleeve 100 and the externally threaded tube 200, the line body 300 comprises a main steel wire 301, an auxiliary steel wire 302, a wrapping layer A303, a metal sleeve 304 and a wrapping layer B305, the auxiliary steel wire 302 is twisted and wound on the outside of the main steel wire 301, and the two cooperate as the main body of the line body 300, the wrapping layer A303 is sleeved on the outside of the auxiliary steel wire 302, the metal sleeve 304 is sleeved on the outside of the wrapping layer A303, and the wrapping layer B305 is sleeved on the outside of the metal sleeve 304, the cross-sections of the wrapping layer A303, the metal sleeve 304 and the wrapping layer B305 are all annular structures, and the inside of the wrapping layer A303 is wrapped around the outer surface of the main steel wire 301. The wall is in close contact with the outer surface of the auxiliary steel wire 302, the inner wall of the metal sleeve 304 is in close contact with the outer surface of the wrapping layer A303, and the inner wall of the wrapping layer B305 is in close contact with the outer surface of the metal sleeve 304, which ensures the tightness of the fitting between the multi-layer structures. The above structures together constitute the wire body 300. The design of the multi-layer structure improves the tensile performance of the wire body 300. The two ends of the wire body 300 are symmetrically connected with the end heads 400, and an assembly component 500 is connected between the end of the wire body 300 and the end head 400. The multi-layer structure inside the wire body 300 can be assembled through the assembly component 500, which ensures the integrity and stability of the wire body 300. The assembly component 500 includes a connecting plate 501, an inner cavity 502, a through hole 503 and an assembly metal block 504. The assembly metal block 504 is welded and fixed to the ends of the main steel wire 301 and the auxiliary steel wire 302 to complete the fixed connection between the main steel wire 301 and the auxiliary steel wire 302.

[0022] In this embodiment, preferably, the connecting disk 501 is fixed on the surface of the end 400, and both ends of the wrapping layer A303, the metal sleeve 304 and the wrapping layer B305 are fixedly connected to the connecting disk 501 to realize the connection between the wrapping layer A303, the metal sleeve 304 and the wrapping layer B305. The inner cavity 502 is opened inside the connecting disk 501, and the through hole 503 is opened on the outside of the inner cavity 502. The diameter of the through hole 503 is smaller than the diameter of the inner cavity 502. The assembly metal block 504 is arranged inside the inner cavity 502, and the ends of the main steel wire 301 and the auxiliary steel wire 302 pass through the through hole 503 and are fixed to the assembly metal block 504.

[0023] In this embodiment, preferably, a sealing assembly 600 is provided at the outer end of the outer sleeve 100 and the externally threaded tube 200 to ensure a sealing effect and prevent water from entering the interior of the outer sleeve 100 and the externally threaded tube 200. The sealing assembly 600 includes a sealing ring 601, an adhesive layer 602 and a rubber ring 603. The sealing ring 601 is bonded to the outer end surface of the outer sleeve 100 and the externally threaded tube 200 through the adhesive layer 602 to fix the sealing ring 601. The rubber ring 603 is arranged on the inner wall of the sealing ring 601. The rubber ring 603 fits the outer surface of the wire body 300 to play a sealing role. The sealing assembly 600 also includes a docking plug 604 and a docking slot 605. The docking plug 604 is fixed to the outer end surface of the outer sleeve 100 and the externally threaded tube 200, and is inserted into the interior of the docking slot 605 opened on one side of the sealing ring 601 to play a positioning connection role and improve the stability of the sealing ring 601.

[0024] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile brake cable, comprising an outer sleeve (100), an externally threaded tube (200) and a cable body (300), characterized in that: The externally threaded tube (200) is fixedly connected to one end of the outer sleeve (100); the wire body (300) is arranged inside the outer sleeve (100) and the externally threaded tube (200); the wire body (300) comprises a main steel wire (301), an auxiliary steel wire (302), a wrapping layer A (303), a metal sleeve (304) and a wrapping layer B (305); the auxiliary steel wire (302) is twisted and wound around the outside of the main steel wire (301); the wrapping layer A (303) is sleeved around the outside of the auxiliary steel wire (302); the metal sleeve (304) is sleeved On the outside of the wrapping layer A (303), the wrapping layer B (305) is sleeved on the outside of the metal sleeve (304), and the two ends of the wire body (300) are symmetrically connected with the end heads (400). An assembly component (500) is connected between the end of the wire body (300) and the end head (400), and the assembly component (500) includes a connecting plate (501), an inner cavity (502), a through hole (503) and an assembly metal block (504). The assembly metal block (504) is welded and fixed to the ends of the main steel wire (301) and the auxiliary steel wire (302).

2. The tensile brake cable according to claim 1, characterized in that: The cross-sections of the wrapping layer A (303), the metal sleeve (304) and the wrapping layer B (305) are all annular structures, and the inner wall of the wrapping layer A (303) is in close contact with the outer surface of the auxiliary steel wire (302).

3. The tensile brake cable according to claim 2, characterized in that: The inner wall of the metal sleeve (304) is in close contact with the outer surface of the wrapping layer A (303), and the inner wall of the wrapping layer B (305) is in close contact with the outer surface of the metal sleeve (304).

4. The tensile brake cable according to claim 3, characterized in that: The connection disk (501) is fixed on the surface of the end head (400), and both ends of the wrapping layer A (303), the metal sleeve (304) and the wrapping layer B (305) are fixedly connected to the connection disk (501).

5. The tensile brake cable according to claim 4, characterized in that: The inner cavity (502) is opened inside the connecting plate (501), the through hole (503) is opened through the outside of the inner cavity (502), the assembling metal block (504) is arranged inside the inner cavity (502), and the ends of the main steel wire (301) and the auxiliary steel wire (302) pass through the through hole (503) and are fixed to the assembling metal block (504).

6. The tensile brake cable according to claim 1, characterized in that: The outer ends of the outer sleeve (100) and the externally threaded tube (200) are provided with a sealing assembly (600), and the sealing assembly (600) comprises a sealing collar (601), a glue layer (602) and a rubber ring (603). The sealing collar (601) is bonded to the outer end surfaces of the outer sleeve (100) and the externally threaded tube (200) through the glue layer (602), and the rubber ring (603) is arranged on the inner wall of the sealing collar (601), and the rubber ring (603) is in contact with the outer surface of the wire body (300).

7. The tensile brake cable according to claim 6, characterized in that: The sealing assembly (600) further comprises a docking insert (604) and a docking slot (605), wherein the docking insert (604) is fixed to the outer end surfaces of the outer sleeve (100) and the external threaded tube (200), and is inserted into the interior of the docking slot (605) opened on one side of the sealing collar (601).

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