Brake fluid changer connector

Abstract

A brake fluid changing device connector for mounting at the opening of a brake fluid tank includes a base, a fixing component, and a clamping component. The base has an internal receiving space connecting both ends. The fixing component includes a plurality of locking members and at least one linkage member. Each locking member is located on the periphery of the base and extends radially into the receiving space. The linkage member drives the locking members to radially displace and clamp the outer periphery of the brake fluid tank opening, thereby positioning the base relative to the opening. The clamping component includes a sealing seat and an axial drive member. The sealing seat passes through the base, and the axial drive member drives the sealing seat to clamp and seal the opening, thereby achieving precise positioning and quick installation / removal.

Claims

1. A connector for a brake fluid changing device, for installation at the inlet of a brake fluid tank, comprising: A base having an internal accommodating space, with its axial ends respectively connected to the accommodating space; a fixing assembly including a plurality of locking members and at least one linkage member, the locking members being disposed on the periphery of the base and extending radially inward to the accommodating space, the linkage member driving the locking members to radially displace, for clamping the outer periphery of the fuel tank opening to position the relative position of the base and the fuel tank opening; a clamping assembly including a sealing seat with an internal oil passage and an axial drive member, the sealing seat being movably disposed through the base and axially opposite to the locking members; the end of the sealing seat facing the locking members is provided with an airtight element, the axial drive member driving the sealing seat to move axially, thereby shortening the distance between the sealing seat and the locking members, so that the airtight element is clamped between the sealing seat and the fuel tank opening to seal the fuel tank opening.

2. The connector for the brake fluid changing device as described in claim 1, wherein, The locking components are independently disposed on the periphery of the base. Each locking component has a clamping end facing the accommodating space. The clamping end has a concave arc-shaped clamping surface on one side corresponding to the oil tank opening, and a slope extending outward at the bottom end of the clamping surface is connected. Each locking component also has an assembly end facing a different direction from the clamping end, which is used to combine with the linkage, so that each locking component is radially displaced by the linkage.

3. The connector for the brake fluid changing device as described in claim 1, wherein, The two adjacent locking components are spaced apart by an angle distance with the axis of the base as the center. The angle distance is 60° to 180°.

4. The connector for the brake fluid changing device as described in claim 1, wherein, The linkage is formed by bending a single wire, which has an annular segment for the locking components to be connected together, and the two ends of the wire are intersected and extend outward to form two force-bearing parts; when an external force is applied to the two force-bearing parts, the annular segment undergoes radial outward expansion deformation, and the locking components are simultaneously displaced radially outward; when the external force is removed, the annular segment generates an inward contraction restoring elastic force, which in turn causes the locking components to return to their radial displacement.

5. The connector for the brake fluid changing device as described in claim 1, wherein, It also includes a cover that is detachably fitted onto the base, and the bottom of the cover and the bottom of the base are axially spaced by a predetermined distance to form a guide space, which is connected to the receiving space for the insertion of the locking components.

6. The connector for the brake fluid changing device as described in claim 5, wherein, The bottom of the cover has a first limiting portion extending radially outward, the bottom of the base has a second limiting portion extending radially outward, and the peripheral wall of the base has a plurality of openings communicating with the accommodating space; the first limiting portion and the second limiting portion are arranged axially parallel to each other, and the openings are respectively arranged in the guide space for each of the locking components to pass through.

7. The connector for the brake fluid changing device as described in claim 1, wherein, The base has a first through hole and a second through hole at its two axial ends, respectively, which are connected to the accommodating space. There is a shoulder between the first through hole and the second through hole. The axial drive member passes through the first through hole and has a radially outward protruding ring portion. The ring portion is blocked by the shoulder portion, so that the axial drive member will not fall out of the first through hole.

8. The connector for the brake fluid changing device as described in claim 1, wherein, The axial drive has an internal thread section, and the outer periphery of the sealing seat has an external thread section corresponding to the internal thread section. The axial drive is sleeved on the sealing seat and rotates in a preset direction to drive the sealing seat to move axially up and down.

9. The connector for the brake fluid changing device as described in claim 8, wherein, Both the internal thread section and the external thread section are left-hand threads. When the axial drive member rotates relative to the sealing seat in a preset rotation direction, it causes the sealing seat to move axially relative to the axial drive member and separate from each other, and shortens the axial distance between the sealing seat and the locking members, thereby pressing the airtight element against the oil tank opening.

10. The connector for the brake fluid changing device as described in claim 1, wherein, The base has at least one guide rib protruding axially on the inner side of its peripheral wall. The end of the sealing seat facing the locking member has a radially extending pressing part. The pressing part has at least one side groove for correspondingly engaging with the guide rib.

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