CN210081586U

CN210081586U - Special sleeve for disassembling quick connector screw sleeve

Info

Publication number: CN210081586U
Application number: CN201920704211.1U
Authority: CN
Inventors: 陈唏
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-02-18
Anticipated expiration: 2029-05-17

Abstract

The utility model belongs to the field of automobile manufacturing, and relates to a special sleeve for disassembling a quick connector screw sleeve; the sleeve comprises a sleeve body, wherein a sleeve connecting cavity is arranged at the upper part of the sleeve body, a transition cavity is arranged at the middle part of the sleeve body, and a working cavity is arranged at the lower part of the sleeve body; the cross section of the sleeve connecting cavity is hexagonal, and the size and the shape of the sleeve connecting cavity are matched with those of the threaded sleeve; the side wall of the sleeve body is provided with a U-shaped groove, and the distance C between the U-shaped grooves on the U-shaped groove is larger than the diameter of the brake pipe inserted into the threaded sleeve. The utility model can directly disassemble the screw sleeve without disassembling the external brake pipe, which is more convenient and reduces the workload of operators; the U-shaped groove is additionally formed in the sleeve, so that a brake pipe shielded outside the threaded sleeve can be avoided, and the brake pipe is prevented from being damaged; the utility model discloses need not additionally to be equipped with ratchet spanner, have good interchangeability, reduced use cost.

Description

Special sleeve for disassembling quick connector screw sleeve

Technical Field

The utility model belongs to the automobile manufacturing field relates to a dismantle specialized tool of brake trachea quick connector swivel nut, particularly, is a dismantle special sleeve of quick connector swivel nut.

Background

At present, the brake pipeline of the commercial vehicle is mostly spliced by adopting a quick-connect connector and matching a corresponding thread sleeve. The vehicle type configuration is numerous, the space is compact, the number of brake air pipes is large, and the arrangement is very tight. When the air pipe is disassembled, the quick connector screw sleeve required to be disassembled is usually shielded by other parts or a pipe line bundle arranged outside.

The structure of the screw sleeve is shown in figure 1a, the upper end of the screw sleeve is a screw sleeve head 1 which is hexagonal and has a certain thickness, the lower end of the screw sleeve is a screw sleeve thread part 2 which is of an external thread structure and is screwed into a part during assembly, and the middle part of the screw sleeve is a screw sleeve hole 3 which penetrates through the upper part and the lower part. The quick connector is inserted in the screw sleeve hole 3.

The screw sleeve is assembled and disassembled by adopting a series of common wrenches; during installation, due to the reason of the assembly sequence, the screw sleeve can be assembled in advance, and then the outer parts are arranged; when disassembling, the operation space is narrow, which results in slow tightening speed or incapability of operation, easy damage to the outside pipe bundle, or the need to disassemble other parts.

Disclosure of Invention

According to the measurement and research of the real vehicle, a special sleeve for disassembling the quick plug screw sleeve of the brake air pipe is designed. The sleeve is mainly suitable for the working condition that the quick connector is in an elbow shape, the trend of the brake pipe is perpendicular to the central axis of the threaded sleeve in space, and under the working condition, the problems that the small space operability is improved, a pipeline harness is easy to damage and the like are solved.

The structure of the special sleeve is described with the attached drawings:

a special sleeve for disassembling a quick connector threaded sleeve comprises a sleeve body 4, wherein a sleeve connecting cavity 5 is arranged at the upper part of the sleeve body 4, a transition cavity 7 is arranged at the middle part of the sleeve body, and a working cavity 8 is arranged at the lower part of the sleeve body;

the cross section of the sleeve connecting cavity 5 is hexagonal, and the size and the shape of the sleeve connecting cavity are matched with those of the threaded sleeve;

the side wall of the sleeve body is provided with a U-shaped groove 6, and the distance C between the U-shaped grooves on the U-shaped groove 6 is larger than the diameter of the brake pipe inserted into the threaded sleeve.

The cross section of the transition cavity 7 is circular.

Working chamber 8 for with ratchet spanner cooperation, 8 inside spacing chambeies 81 that set up of working chamber, spacing chamber 81 be used for with the spacing protruding circle cooperation on the ratchet spanner.

Compared with the prior art, the utility model beneficial technological effect:

by adopting the sleeve, the dismounting work of the threaded sleeve can be directly carried out under the condition that the external brake pipe is not dismounted, the convenience is realized, and the workload of operators is reduced. The U-shaped groove is additionally formed in the sleeve, so that a brake pipe shielded outside the threaded sleeve can be avoided, and the brake pipe is prevented from being damaged; the shape of the mouth surface of the connecting cavity at the upper part of the sleeve is hexagonal with that of the screw sleeve, and the connecting cavity has a limiting jaw which can be effectively fixed with the screw sleeve; the specifications and the using method of other parts of the screw sleeve are the same as those of a sleeve matched with a common ratchet wrench, and the ratchet wrench does not need to be additionally equipped, so that the screw sleeve has good interchangeability and reduces the using cost.

Drawings

FIG. 1a is a schematic view of a threaded sleeve;

FIG. 1b is a half sectional view of the threaded sleeve;

fig. 2a is a schematic view of the special sleeve for disassembling the quick connector screw sleeve according to the present invention;

FIG. 2b is a front view of the special sleeve for detaching the quick connector insert of the present invention;

fig. 2c is a sectional view of the special sleeve for detaching the quick connector swivel nut of the present invention;

FIG. 2d is a top view of the special sleeve for detaching the quick connector insert of the present invention;

in the figure: 1. the head of the screw sleeve; 2. a threaded portion of the threaded sleeve; 3. a screw sleeve hole; 4. a sleeve body; 5. a sleeve connection cavity; 51. limiting the jaw; 6. a U-shaped groove; 7. a transition chamber; 8. a working chamber; 81. a limiting cavity;

A. the thickness of the head of the screw sleeve; B. the diameter of the screw sleeve hole; C. the distance between the U-shaped grooves.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings:

the structure of the sleeve is shown in fig. 2a, fig. 2b, fig. 2c and fig. 2 d;

4 is a sleeve body;

5 is a sleeve connecting cavity, the shape of the cavity is hexagonal, and the size and the shape of the cavity are matched with those of the screw sleeve;

the 6 position is a U-shaped groove, and the groove distance C of the U-shaped groove, namely the diameter of the upper round part of the U-shaped groove, can be ensured to be larger than the diameter of the brake pipe inserted into the screw sleeve;

due to the existence of the U-shaped groove, the part naturally formed above the connecting cavity becomes a limiting jaw 51;

the middle part is a transition cavity 7, and the shape of the cavity is circular;

the lower part is a working cavity 8 which is used for matching with the ratchet wrench, and the limiting cavity 81 inside the working cavity is used for matching with the limiting protruding circle on the ratchet wrench.

When in use, the sleeve and the ratchet wrench are combined, the sleeve connecting cavity 5 is aligned with the screw sleeve, the U-shaped groove 6 is aligned with the brake pipeline, the sleeve is submerged into the screw sleeve after alignment, then the ratchet is screwed, the screw sleeve is loosened, and then the sleeve is disassembled by hand.

The using mode of the sleeve is consistent with that of the hexagonal sleeve used for current production;

the sleeve is mainly suitable for the working condition that the quick connector is in the form of an elbow, namely the working condition that the trend of the brake pipe is perpendicular to the central axis of the thread sleeve in space, and the using mode is specifically explained as follows:

when the elbow is disassembled under the working condition, the special sleeve is firstly combined with the ratchet wrench. The sleeve connecting cavity 5 is directly aligned with the threaded sleeve, and meanwhile, the U-shaped groove 6 is aligned with the brake air pipe and moves downwards after being aligned, so that the sleeve is embedded with the threaded sleeve. Due to the existence of the U-shaped groove, the brake pipe can be embedded into the U-shaped groove.

The ratchet wrench is screwed anticlockwise to rotate for a certain angle, the threaded sleeve is screwed loose, and then the threaded sleeve is taken down by rotating with a hand.

It should be noted that, because the brake pipeline blocks, the ratchet wrench of this scheme has the extreme position of rotation when twisting, and when the tensile straightness that stretches of tube bank, should stop twisting the wrench to avoid the brake pipe to damage. At this time, the threaded sleeve is loosened, and the threaded sleeve is unscrewed by applying a hand.

The above description is exemplary of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement and the like made within the scope of the inventive concept of the present invention are included in the protection scope of the present invention.

Claims

1. The utility model provides a dismantle special sleeve of quick connector swivel nut which characterized in that: the sleeve comprises a sleeve body (4), wherein a sleeve connecting cavity (5) is arranged at the upper part of the sleeve body (4), a transition cavity (7) is arranged at the middle part of the sleeve body, and a working cavity (8) is arranged at the lower part of the sleeve body;

the cross section of the sleeve connecting cavity (5) is hexagonal, and the size and the shape of the sleeve connecting cavity are matched with those of the threaded sleeve;

u-shaped grooves (6) are formed in the side wall of the sleeve body, and the distance C between the U-shaped grooves in the U-shaped grooves (6) is larger than the diameter of the brake pipe inserted into the threaded sleeve.

2. The special sleeve for disassembling the quick connector screw sleeve as claimed in claim 1, wherein:

the cross section of the transition cavity (7) is circular.

3. The special sleeve for disassembling the quick connector screw sleeve as claimed in claim 1, wherein:

working chamber (8) for with ratchet spanner cooperation, inside spacing chamber (81) that sets up of working chamber (8), spacing chamber (81) are used for with the spacing abrupt circle cooperation on the ratchet spanner.