CN216590550U

CN216590550U - Brake pipeline plugging tool for vehicle brake test

Info

Publication number: CN216590550U
Application number: CN202122440886.XU
Authority: CN
Inventors: 杨阳
Original assignee: FAW Volkswagen Automotive Co Ltd
Current assignee: FAW Volkswagen Automotive Co Ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2022-05-24
Anticipated expiration: 2031-10-11

Abstract

The utility model provides a brake pipeline plugging tool for vehicle brake testing, which comprises a plug, wherein the first end of the plug is provided with an axially extending inner hole, the inner hole is provided with an inner thread section adapted to a brake pipeline joint bolt and a pipe accommodating section adapted to a brake pipeline and extending beyond an extending part of the joint bolt, and the end face of the pipe accommodating section, far away from the inner thread section, is plugged. When the plugging tool is used for plugging, the plugging tool is only required to be disconnected from the brake hose and the brake calipers of the wheels to be matched with the corresponding pipeline joints, brake fluid can be prevented from entering the brake cylinders at the rear end to realize braking, the operation is simple, the working hours are saved, the brake fluid loss is reduced, and the subsequent work load of filling and exhausting the brake fluid is effectively reduced.

Description

Brake pipeline plugging tool for vehicle brake test

Technical Field

The utility model relates to the technical field of auxiliary tools related to vehicle braking tests, in particular to a brake pipeline plugging tool for vehicle braking tests.

Background

For the type certification of the vehicle, the certification is required to be carried out according to GB-21670 test requirements of the national automobile detection center, and the required adhesion coefficient is determined by the quotient of the maximum braking force divided by the corresponding dynamic load of a braked axle (bridge) on the premise of no wheel locking. Only the tires on a single axle (axle) of the test vehicle are braked. To brake the wheels of a single shaft (axle), the oil path from the ESP master cylinder to the wheel cylinders on the single shaft (axle) needs to be cut off to realize brake failure. The traditional mode wastes working hours, has more brake fluid loss and is not easy to operate.

According to the traditional operation mode, two schemes are adopted to realize the brake failure: scheme 1 — brake line to a certain wheel on the ESP master cylinder is disconnected. The special plug is screwed to an ESP master pump channel and is disconnected from the ESP master pump to realize brake failure, but the ESP master pumps of different vehicle types have different positions, and when the position of the ESP master pump is close to the inside of an engine compartment, the scheme is very difficult to disconnect a single connecting pipeline, so that brake fluid loss is caused, and the brake pipeline is difficult to intake and disassemble; scheme 2, the connection between the brake pipe and the brake cylinder of the single wheel is disconnected, brake fluid cannot enter the brake cylinder of the single wheel to achieve brake failure, the connection between the brake pipe and the brake cylinder of the single wheel is disconnected in the mode, the brake fluid is greatly lost due to the fact that the tail end of the brake pipe is not connected with a plug, air enters a brake pipeline, air is exhausted for many times during later filling, and the brake fluid is corrosive and pollutes the environment.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a brake pipeline plugging tool for vehicle brake test, which can prevent brake fluid from flowing into each brake cylinder in a brake caliper, thereby realizing brake failure of two wheels on the same shaft (axle), saving labor hour and reducing brake fluid leakage. The purpose of the utility model is realized by the following technical scheme:

the utility model provides a brake pipeline plugging tool for vehicle brake testing, which comprises a plug, wherein an inner hole extending axially is formed in the first end of the plug, the inner hole is provided with an inner thread section adapted to a brake pipeline joint bolt and a pipe accommodating section adapted to the brake pipeline and extending beyond the extending part of the joint bolt, and the end face, far away from the inner thread section, of the pipe accommodating section is plugged.

Furthermore, the end cap is provided with a screwing fixing portion and a sealing end portion, the inner hole is formed in the first end of the screwing fixing portion, which penetrates through the inner hole, the inner thread section is formed in the first end of the inner hole, and the sealing end portion is fixed to the second end of the screwing fixing portion to seal one end, far away from the inner thread section, of the pipe accommodating section.

Further, the end sealing part adopts a solid cylinder with a polygonal section.

Further, the end sealing part adopts a solid cylinder with a hexagonal section.

Further, the screwing fixing portion is a standard nut member adapted to a brake pipe joint bolt, the diameter of an inscribed circle of the hexagonal cross section of the end sealing portion is larger than the maximum radial dimension of the inner hole, and the end sealing portion is fixedly connected to the second end face of the screwing fixing portion through welding.

Further, the end seal portion and the screw fixation portion are axially aligned.

The utility model has the beneficial effects that: when the plugging tool is used for plugging, the plugging tool is only required to be disconnected from the brake hose and the brake calipers of the wheels to be matched with the corresponding pipeline joints, brake fluid can be prevented from entering the brake cylinders at the rear end to realize braking, the operation is simple, the working hours are saved, the brake fluid loss is reduced, and the subsequent work load of filling and exhausting the brake fluid is effectively reduced.

Drawings

Fig. 1 is a schematic front view of a brake pipe plugging tool according to embodiment 1 of the present invention;

FIG. 2 is a schematic cross-sectional view of the occlusion tool of FIG. 1 in an applied state;

FIG. 3 is a schematic bottom view of FIG. 2;

FIG. 4 is a schematic top view of FIG. 2;

fig. 5 is a schematic front view of a brake pipe plugging tool according to embodiment 2 of the present invention;

FIG. 6 is a schematic cross-sectional view of the occlusion tool of FIG. 5 in an applied state;

FIG. 7 is a schematic bottom view of FIG. 6;

fig. 8 is a schematic top view of fig. 6.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

It should be noted that in the following description, the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Example 1:

the embodiment provides a hard braking pipe plugging tool suitable for an Audi vehicle front axle, as shown in figures 1-4, the hard brake pipe plugging tool comprises a plug 100, the plug 100 is provided with a screwing fixing part 120 and a plugging part 110, the end sealing part 110 is fixed on the second end surface of the screw fixing part 120, the first end of the screw fixing part 120 is provided with an inner hole A10 axially penetrating through the end part, the inner hole a10 is adapted to the joint structure of the audi brake hard tube, specifically, the inner hole a10 has an internal thread section a11, a connecting tube accommodating section a12 and a thin tube accommodating section a13 penetrating the first end face of the screw fixing portion 120, as shown in fig. 2, the axial and radial dimensions of the internal thread segment a11 are adapted to the external thread configuration of the joint bolt of the brake hard pipe, the connecting pipe accommodating section A12 and the thin pipe accommodating section A13 are adapted to the pipe accommodating section of the brake hard pipe of the Audi vehicle, which axially extends beyond the fixing bolt of the brake hard pipe. The end face of the sealing end portion 110 can completely cover the end face of the pore accommodating section A13 far away from the internal thread section, so that the internal thread section A11, the connecting pipe accommodating section A12 and the pore accommodating section A13 form a step-shaped inner hole A10, at the moment, the inner hole A10 forms a double-step counter bore structure with the end face of the sealing end portion 110 as an inner end portion, when testing is conducted, a braking hard pipe joint is detached from a brake caliper, then the plug 100 is screwed to a braking hard pipe joint bolt of a front axle of an Audi vehicle through the screwing fixing portion 120 of the plug to be fixed, and then testing is conducted, and leakage of brake fluid in the testing process can be effectively prevented.

In a preferred embodiment, the screw fixing portion 120 is provided with an external hexagonal boss 121 formed to extend radially outward to facilitate the screw.

In a preferred embodiment, the closed end portion 110 is a solid cylinder structure with a polygonal cross section, such as a solid cylinder structure with a hexagonal cross section, so as to facilitate screwing and disassembling with a wrench or the like, as shown in fig. 1 and 2, an inscribed circle diameter of the hexagonal cross section of the closed end portion is larger than a maximum radial dimension of the fine hole, and the closed end portion is axially and centrally fixedly connected to the second end face of the screw fixation portion by welding.

Example 2:

the basic principle of the present embodiment is the same as that of embodiment 1, except that the present embodiment provides a plugging tool suitable for an ondi vehicle type rear axle brake hose or a popular other vehicle type front axle or rear axle brake hose, the plugging tool of the present embodiment includes a plug 200, as shown in fig. 5 to 8, a first end of the plug 200 is provided with an inner hole B10 penetrating through an end thereof, the inner hole structure is matched with the size of a joint bolt of the brake hose of the suitable vehicle type, specifically, the inner hole B10 has an inner thread section B11 screwed through a first end face of a screwing fixing portion 220 thereof and a tube accommodating section B12 axially extending towards the plugging portion 220, as shown in fig. 6, the plugging portion is fixedly connected to a second end of the screwing fixing portion, and the tube extending section B12 of the sealing portion completely covers a radial end face of the tube extending section B11 of the inner hole.

In a preferred embodiment, the screw-fixing portion 120 may directly adopt a standard nut member adapted to a brake pipe joint bolt, and the end-sealing portion may adopt a bolt head member having an inscribed circle with a size larger than a radial size of the pipe receiving section, and the bolt head member is axially and centrally fixedly connected to the second end surface of the screw-fixing portion by welding to obtain the plug member required by the present invention.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, while the utility model has been described in detail with reference to the foregoing preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the utility model as defined by the appended claims; the sizes in the drawings and the embodiments are not related to specific objects, and are not used for limiting the protection scope of the utility model, and the sizes of the objects can be selected and changed according to actual needs.

Claims

1. The utility model provides a brake piping shutoff instrument of vehicle braking test, its characterized in that, includes the end cap, the first end of end cap is equipped with axially extended hole, the hole has the interior screw thread section of adaptation brake piping joint bolt and the pipe portion holding section that adaptation brake piping extended the extension that surpasss joint bolt, pipe portion holding section is kept away from the terminal surface of interior screw thread section is by the shutoff.

2. The tool of claim 1, wherein the plug has a screw fixing portion and a sealing end portion, the inner hole forms the internal thread section at a first end of the inner hole penetrating through the screw fixing portion, and the sealing end portion is fixed at a second end of the screw fixing portion and seals an end of the tube accommodating section away from the internal thread section.

3. The tool of claim 2, wherein the sealing end is a solid cylinder with a polygonal cross section.

4. The brake pipe plugging tool for the vehicle braking test according to claim 3, wherein the plugging end portion is a solid cylinder with a hexagonal cross section.

5. The brake pipe plugging tool for the vehicle brake test according to claim 4, wherein the screw fixing portion is a standard nut member adapted to a brake pipe joint bolt, an inscribed circle diameter of a hexagonal cross section of the end sealing portion is larger than a maximum radial dimension of the inner hole, and the end sealing portion is fixedly connected to the second end face of the screw fixing portion by welding.

6. The brake line plugging tool for vehicle braking test according to claim 4 or 5, wherein the plugging portion and the screw fixing portion are axially aligned.