CN218208323U

CN218208323U - High-pressure oil pipe joint convenient to buckle

Info

Publication number: CN218208323U
Application number: CN202222089747.1U
Authority: CN
Inventors: 李明阳
Original assignee: Zhucheng Yuanbo Hydraulic Equipment Co ltd
Current assignee: Zhucheng Yuanbo Hydraulic Equipment Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-01-03
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a high pressure fuel pipe who conveniently withholds connects, including connecting the body, connect one of body to serve and be equipped with the grafting portion that can insert the rubber tube, grafting portion is equipped with the portion of cup jointing that can overlap to the rubber tube outside outward, is equipped with the terminal surface mark that corresponds with the rubber tube terminal surface after cup jointing on the surface of the portion of cup jointing, and the part that the terminal surface mark was kept away from in the portion of cup jointing is for withholding the section, withholds and is equipped with the non-interval of pressing between section and the terminal surface mark. The end face mark is used as a reference, so that a non-full-line buckling mode of only buckling at the buckling section can be conveniently realized. The rubber tube at the non-pressing interval after being buckled and pressed keeps the original shape because of not being extruded by the sleeving connection part and the inserting connection part, and compared with the extruded part, the rubber tube is equivalent to a convex ring which limits the outward movement of the joint at the end part of the rubber tube. The limiting function of the convex ring is matched with the extrusion function of the buckling section and the inserting part, so that the joint and the rubber pipe can be connected more stably.

Description

High-pressure oil pipe joint convenient to buckle

Technical Field

The utility model relates to a high pressure fuel pipe connects.

Background

The high-pressure oil pipe is used as an oil pipe between two hydraulic elements in a hydraulic system and structurally comprises a rubber pipe in the middle and joints buckled and pressed at two ends of the rubber pipe; the joint comprises an inserting part which can be inserted into the inner cavity of the rubber pipe and a sleeving part which can be sleeved outside the rubber pipe outside the inserting part, and an annular cavity which can be sleeved to the end part of the rubber pipe is formed between the sleeving part and the inserting part. After the joint is sleeved on the end part of the rubber pipe, the external sleeving part is buckled and pressed, and the inward convex deformation part of the sleeving part and the inserting part form extrusion on the rubber pipe, so that the tight connection between the joint and the rubber pipe is realized.

At present, the sleeving part is buckled and pressed mostly along the axial direction of the sleeving part, as shown in figure 4, and the sleeving part starts from the end face of the rubber pipe to form a state of a fixed cross section. The joint and the rubber pipe are axially fixed relatively by friction force generated by extrusion of the sleeve joint part and the splicing part on the rubber pipe. When the high-pressure oil pipe is used in a large pressure field or a field with frequent movement, the rubber pipe and the joint are easy to move relatively in the axial direction, and finally, the rubber pipe and the joint generate a gap to cause liquid leakage, and even the rubber pipe is separated from the joint. Therefore, the buckling and pressing mode of the joint needs to be improved, so that stable connection is formed between the joint and the rubber hose in the high-pressure oil pipe.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a high pressure fuel pipe who conveniently withholds connects is provided, and it conveniently realizes that the whole line of non-is withheld, guarantees to connect and the rubber tube is stable to be connected.

In order to solve the technical problem, the technical scheme of the utility model is that: the high-pressure oil pipe joint convenient to buckle comprises a joint body, one end of the joint body is provided with an inserting part capable of being inserted into a rubber pipe, a sleeving part capable of being sleeved outside the rubber pipe is arranged outside the inserting part, the outer surface of the sleeving part is provided with an end face mark corresponding to the end face of the sleeved rubber pipe, the sleeving part is far away from the end face mark, and the buckling section and the end face mark are provided with non-pressing intervals.

Preferably, the end surface is a ring groove formed in an outer surface of the socket part.

As a preferable technical scheme, a limiting surface for limiting the insertion position of the end part of the rubber tube is arranged in the sleeve joint part, and the end surface mark and the limiting surface are arranged in a coplanar manner.

As the preferred technical scheme, the buckling convex ring is arranged on the inner wall of the buckling section.

Preferably, the other end of the joint body is provided with a mounting part for connecting a hydraulic component.

By adopting the technical scheme, the high-pressure oil pipe joint convenient to buckle comprises a joint body, wherein one end of the joint body is provided with an inserting part capable of being inserted into a rubber pipe, the outside of the inserting part is provided with a sleeving part capable of being sleeved outside the rubber pipe, the outer surface of the sleeving part is provided with an end face mark corresponding to the end face of the sleeved rubber pipe, the part of the sleeving part, far away from the end face mark, is a buckling section, and a non-pressing interval is arranged between the buckling section and the end face mark. By taking the end face mark as a reference, a non-full-line buckling mode of buckling only at the buckling section can be conveniently realized. After the rubber pipe is buckled, the rubber pipe at the non-pressing interval part keeps the original shape because of not being extruded by the sleeving connection part and the inserting connection part, and compared with the extruded part, the rubber pipe is equivalent to a convex ring which limits the outward movement of the joint at the end part of the rubber pipe. The limiting function of the convex ring is matched with the squeezing function of the buckling section and the inserting part, so that the joint and the rubber pipe can be connected more stably, and the problem of liquid leakage and even separation between the joint and the rubber pipe under a high-pressure use environment or a frequent activity use environment can be effectively avoided.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is a schematic cross-sectional structural view of a first embodiment of the present invention;

fig. 3 is a schematic cross-sectional structural view of a second embodiment of the present invention;

fig. 4 is a schematic perspective sectional structure of the prior art.

In the figure: 1-a joint body; 2-a plug-in part; 3-a socket joint part; 31-end face marking; 32-a crimping section; 33-a limiting surface; 34-buckling the convex ring; 35-non-compressed space; 4-a mounting portion; 9-rubber tube.

Detailed Description

The invention is further explained below with reference to the drawings and examples. In the following detailed description, exemplary embodiments of the invention are described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

The first embodiment is as follows: as shown in fig. 1 and 2, the high-pressure oil pipe joint convenient to buckle comprises a joint body 1, wherein one end of the joint body 1 is provided with an inserting part 2 capable of being inserted into a rubber pipe 9, and a sleeve part 3 capable of being sleeved outside the rubber pipe 9 is arranged outside the inserting part 2; in addition, the other end of the joint body 1 is provided with an installation part 4 for connecting a hydraulic element, and the above structure is a conventional structure of a high-pressure oil pipe joint and is not described again. The installation part 4 is not limited to nut installation or insertion, and is not limited to direct or bent connection, that is, no matter what form the installation part 4 takes, the connection between the socket part 3, the plug part 2 and the rubber tube 9 is not affected, and this embodiment is only illustrated by direct nut installation.

In this embodiment, an end surface mark 31 corresponding to the end surface of the sleeved rubber tube 9 is arranged on the outer surface of the sleeved part 3, a part of the sleeved part 3, which is far away from the end surface mark 31, is a buckling section 32, and a non-pressing interval 35 is arranged between the buckling section 32 and the end surface mark 31.

By using the end face mark 31 as a reference, a non-full-line buckling mode of only buckling the buckling section 32 can be conveniently realized. After crimping, the rubber tube 9 at the non-crimping interval 35 keeps the original shape without being squeezed by the socket part 3 and the spigot part 2, and compared with the squeezed part, a convex ring for limiting outward movement of the joint is formed at the end part of the rubber tube 9. The limiting function of the convex ring is matched with the pressing section 32 and the extrusion function of the inserting part 2, so that the joint and the rubber pipe 9 can be connected more stably, and the problem of liquid leakage and even separation between the joint and the rubber pipe 9 in a high-pressure use environment or a frequent movable use environment is effectively avoided.

The size of the non-pressure gap 35 can be specifically set according to the size and the model of the joint, the size and the thickness of the rubber hose 9, and the like. In this embodiment, the end surface mark 31 is a ring groove formed on the outer surface of the socket part 3, and may be a ring line, or a line segment, a point, or the like arranged in a ring shape. In the present embodiment, a position-limiting surface 33 for limiting the insertion position of the end portion of the rubber tube 9 is provided in the engaging portion 3, and the end surface mark 31 and the position-limiting surface 33 are coplanar. Through the arrangement of the limiting surface 33, the position of the end surface of the subsequent rubber tube 9 sleeved in the joint can be easily obtained during joint processing, so that the position of the ring groove can be conveniently determined according to the limiting surface 33 during joint processing, and the processing is convenient.

Example two: as shown in fig. 3, the present embodiment is different from the first embodiment in that: the inner wall of the buckling section 32 is provided with a buckling convex ring 34, and the buckling section 32 can provide the embedding and holding effect on the rubber tube 9 through the arrangement of the buckling convex ring 34, so that the connection stability of the joint and the rubber tube 9 is further improved.

The foregoing shows and describes the general principles, essential features, and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Make things convenient for high pressure fuel pipe who withholds connects, including connecting the body, one of connecting the body serves and is equipped with the grafting portion that can insert in the hose, grafting portion is equipped with the portion of cup jointing outside can overlapping to the hose, its characterized in that outward: the outer surface of the sleeving part is provided with an end face mark corresponding to the end face of the sleeved rubber pipe, the part of the sleeving part, which is far away from the end face mark, is a buckling section, and a non-pressing interval is arranged between the buckling section and the end face mark.

2. The high pressure tubing joint that facilitates make-up of claim 1, wherein: the end face mark is a ring groove formed in the outer surface of the socket joint part.

3. The high pressure tubing joint that facilitates make-up of claim 1, wherein: the sleeve joint part is internally provided with a limiting surface used for limiting the insertion position of the end part of the rubber tube, and the end surface mark and the limiting surface are arranged in a coplanar manner.

4. The high pressure tubing joint that facilitates make-up of claim 1, wherein: and the inner wall of the buckling section is provided with a buckling convex ring.

5. The high-pressure oil pipe joint convenient to buckle as claimed in any one of claims 1 to 4, wherein: and the other end of the joint body is provided with an installation part for connecting a hydraulic element.