CN204372412U - Air brake hose nipple fixed structure - Google Patents

Abstract

The utility model discloses a brake hose joint fixing structure, which comprises a brake caliper assembly, a hose bracket, a brake hose, and a brake hard tube. The two ends of the brake hose are respectively provided with first hoses. The joint and the second hose joint are characterized in that: the second hose joint includes a fixed sleeve connected in sequence, an even-numbered polygonal sleeve with not less than six sides, a limit sleeve and a hose connector, and the hose connector and The brake hose is connected, and an annular groove is provided between the fixed sleeve and the even-numbered polygonal sleeve with not less than six sides, and the hose bracket is provided with an even-numbered polygonal sleeve with not less than six sides. A joint mounting hole with matching edge spacing, an even-numbered polygonal bushing with not less than six sides is set in the joint mounting hole, the hose fixing clip is clamped in the annular groove, and the fixing bushing is connected with the brake hard pipe. The utility model has the beneficial effect of reducing the assembly torsion angle of the brake hose.

Description

Brake hose joint fixing structure

technical field

The utility model relates to an automobile part, in particular to a brake hose joint fixing structure.

Background technique

At present, the brake hose and the brake caliper assembly are connected through two joints, one of which is an external thread, which can be directly screwed and fixed. The hose bracket is matched and fixed on the suspension torsion beam. The cross-sectional shape of the existing brake hose joint is a rectangle in the middle and semicircular arcs at both ends, and the maximum twisting angle of this structure is 90°. During the running of the vehicle, the brake hose vibrates continuously with the suspension, and at the same time bears the alternating pressure of the internal brake fluid. From the perspective of fatigue life, the best twist angle during the installation process of the other joint of the brake hose is not more than 30°. If the twisting angle is large, there is a risk of hose breakage.

Utility model content

The purpose of this utility model is to solve the shortcomings of the above-mentioned background technology, and propose a brake hose joint fixing structure that can reduce the torsion angle of the brake hose assembly.

In order to achieve the above purpose, the utility model provides a brake hose joint fixing structure, including a brake caliper assembly, a hose bracket, a brake hose and a brake hard tube, the two ends of the brake hose A first hose joint and a second hose joint are respectively provided, the first hose joint is threadedly connected with the brake caliper assembly, the second hose joint is fixed on the hose bracket, and the second soft An internally threaded hole is opened in the pipe joint along the axial direction, and it is characterized in that: the second hose joint includes a fixed sleeve connected in sequence, an even-numbered polygonal sleeve with not less than six sides, a limit sleeve and a flexible sleeve. A pipe joint, the hose joint is connected to the brake hose, an annular groove is provided between the fixed sleeve and an even-numbered polygonal sleeve with not less than six sides, and the diameter of the fixed sleeve is smaller than the number of sides The distance between the opposite sides of the even-numbered polygonal casing of not less than six, the diameter of the limiting sleeve is greater than the diagonal distance of the even-numbered polygonal casing with the number of sides not less than six, and the hose bracket is provided with a A joint installation hole with a matching distance between opposite sides of even-numbered polygonal sleeves with not less than six sides, the even-numbered polygonal sleeves with no less than six sides are arranged in the joint installation hole, and the hose fixing clamp Set in the annular groove, the fixed sleeve is connected with the brake hard pipe.

As a preferred solution, the hose fixing clip is a circlip, and an elastic piece is provided between the circlip and the hose bracket.

Further, the fixing sleeve, the limiting sleeve and the hose connection are cylindrical.

Beneficial effects of the utility model: Since the outer surface of the even-numbered polygonal casing with not less than six sides is hexagonal, the maximum twisting angle is 30° when matched with the joint installation hole, so the hose will not break risks of. In addition, the hose connector is fixed on the hose bracket by using the clamp spring and the shrapnel, which has a simple structure, good stability, and convenient disassembly and assembly.

Description of drawings

Fig. 1 is a schematic diagram of the fixing structure of the existing brake hose joint;

Fig. 2 is a structural representation of the utility model;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is a schematic diagram of the structure of the hose support;

In the figure: brake caliper assembly 1, suspension torsion beam 2, brake hose 3, brake hard pipe 4, first hose joint 5, second hose joint 6, fixed sleeve 6.1, different sides Less than six even-numbered polygonal sleeves 6.2, limit sleeves 6.3, hose connectors 6.4, annular grooves 6.5, hose fixing clips 7, hose brackets 8, and joint installation holes 8.1.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Embodiment: a brake hose joint fixing structure as shown in Figures 1 to 4, including a brake caliper assembly 1, a hose bracket 8, a brake hose 3 and a brake hard tube 4, the system The two ends of the moving hose 3 are respectively provided with a first hose joint 5 and a second hose joint 6, the first hose joint 5 is threadedly connected with the brake caliper assembly 1, and the second hose joint 6 Fixed on the hose bracket 8, the hose bracket 8 is welded on the suspension torsion beam 2. The second hose joint 6 is provided with an internally threaded hole with a diameter of Ma along the axial direction, and the second hose joint 6 includes fixed sleeves 6.1 connected in sequence, and even-numbered polygonal sleeves with not less than six sides. Pipe 6.2, limit sleeve 6.3 and hose connector 6.4, the hose connector 6.4 is connected to the brake hose 3, between the fixed sleeve 6.1 and the even-numbered polygonal sleeve 6.2 with sides not less than six An annular groove 6.5 is provided, the diameter ΦC of the fixed sleeve 6.1 is smaller than the distance Da between opposite sides of the even-numbered polygonal sleeve 6.2 with not less than six sides, and the diameter ΦB of the limiting sleeve 6.3 is much larger than the number of sides For the diagonal spacing ΦA of the six even-numbered polygonal casings 6.2, the hose bracket 8 is provided with a joint installation hole 8.1 matching the diagonal spacing Da of the even-numbered polygonal casings 6.2 with not less than six sides, The even-numbered polygonal casing 6.2 with not less than six sides is set in the joint installation hole 8.1, the hose fixing clip 7 is clamped in the annular groove 6.5, the inner diameter of the annular groove 6.5 is ΦD, and the fixing sleeve Pipe 6.1 links to each other with brake hard pipe 4. The hose fixing clip 7 is a circlip, and a shrapnel is arranged between the circlip and the hose bracket 8 .

During installation, the first hose connector 5 is first screwed to be threadedly connected with the brake caliper assembly 1 . Turn the second hose joint 6 again, so that the even-numbered polygonal casing 6.2 with the number of sides not less than six passes through the joint installation hole 8.1 on the hose support 8, and the joint installation hole 8.1 plays the role of circumferential positioning. Then clamp the hose fixing clip 7 in the annular groove 6.5. At this time, the shrapnel of the hose fixing clip 7 is in a compressed state, and its rebound force tightens the hose joint and the hose bracket 8 to play the role of axial positioning. .

In this embodiment, the even-numbered polygonal sleeve 6.2 with not less than six sides is a hexagonal sleeve, so when matched with the joint installation hole 8.1, the maximum twisting angle is 30°, so there is no risk of hose breakage . In addition, the hose connector is fixed on the hose bracket 8 by means of the cooperation of the clip spring and the shrapnel, which has the advantages of simple structure, good stability, and convenient assembly and disassembly.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the structure of the present utility model in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model still belong to the scope of the technical solution of the present utility model.

Claims (3)

1. an air brake hose nipple fixed structure, comprise brake caliper assembly (1), hose support (8), Brake hose (3) and brake hard tube (4), the two ends of described Brake hose (3) are respectively equipped with the first hose coupling (5) and the second hose coupling (6), described first hose coupling (5) is threaded with brake caliper assembly (1), described second hose coupling (6) is fixed on hose support (8), interior threaded hole is had vertically in described second hose coupling (6), it is characterized in that: described second hose coupling (6) comprises the fixed sleeving (6.1) be connected successively, limit number is no less than the even-numbered polygons sleeve pipe (6.2) of six, limit casing (6.3) and flexible pipe adapter (6.4), described flexible pipe adapter (6.4) is connected with Brake hose (3), circular groove (6.5) is provided with between the even-numbered polygons sleeve pipe (6.2) that described fixed sleeving (6.1) and limit number are no less than six, the diameter of described fixed sleeving (6.1) is less than the opposite side spacing that limit number is no less than the even-numbered polygons sleeve pipe (6.2) of six, the diameter of described limit casing (6.3) is greater than the diagonal pitch that limit number is no less than the even-numbered polygons sleeve pipe (6.2) of six, the jiont treatment hole (8.1) that the opposite side spacing described hose support (8) offering the even-numbered polygons sleeve pipe (6.2) being no less than six with limit number matches, the even-numbered polygons sleeve pipe (6.2) that described limit number is no less than six is located in jiont treatment hole (8.1), described hose fixing holder (7) is arranged in circular groove (6.5), described fixed sleeving (6.1) is connected with brake hard tube (4).

2. air brake hose nipple fixed structure according to claim 1, it is characterized in that: between described second hose coupling (6) and hose support (8), be provided with hose fixing holder (7), described hose fixing holder (7) is jump ring, is provided with shell fragment between described jump ring and hose support (8).

3. air brake hose nipple fixed structure according to claim 1, is characterized in that: described fixed sleeving (6.1), limit casing (6.3) and flexible pipe adapter (6.4) are in cylindric.