CN115264207A

CN115264207A - Pipeline joint, pipeline coupling assembling and vehicle

Info

Publication number: CN115264207A
Application number: CN202210892650.6A
Authority: CN
Inventors: 汤荣兵; 范义红; 刘慧建
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-01

Abstract

The invention discloses a pipeline joint, a pipeline connecting assembly and a vehicle, wherein the pipeline joint is used for connecting a hose and a hard pipe and comprises: the joint body is provided with an inserting cavity, the inserting cavity is opened at two ends of the joint body, the hard pipe is suitable for being inserted into the inserting cavity from a first end of the joint body, and the hose is suitable for being inserted into the inserting cavity from a second end of the joint body and clamped between the hard pipe and the inner wall of the inserting cavity; the inner peripheral wall of the inserting cavity is provided with a first sealing portion and/or a second sealing portion, the first sealing portion is in sealing abutting joint with the outer peripheral wall of the hard tube, and the second sealing portion is in sealing abutting joint with the outer peripheral wall of the hose. According to the pipeline joint provided by the embodiment of the invention, multiple sealing of a gap between the hose and the hard pipe can be realized, the sealing property between the hose and the hard pipe is improved, the possibility of brake fluid leakage is reduced, and the reliability of the pipeline joint is improved.

Description

Pipeline connects, pipeline coupling assembling and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a pipeline joint, a pipeline connecting assembly and a vehicle.

Background

The automobile brake system leads the trend of a brake hard pipe pipeline to be complex due to the limited arrangement space, and the joint of the hard pipe is easy to leak oil. In the prior art, a section of hose is usually added in the middle of a brake pipeline for connection, and the hose and a hard pipe are connected through a pipeline joint, but the pipeline joint has poor sealing performance, so that brake fluid leakage is easily caused, the brake safety is affected, and an improved space exists.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a pipe joint, which can achieve multiple sealing of a gap between a hose and a pipe, improve sealing between the hose and the pipe, reduce a possibility of leakage of brake fluid, and improve reliability of the pipe joint.

According to the embodiment of the invention, the pipeline joint is used for connecting a hose and a hard pipe and comprises the following components: the joint body is provided with an inserting cavity, the inserting cavity is opened at two ends of the joint body, the hard pipe is suitable for being inserted into the inserting cavity from a first end of the joint body, and the hose is suitable for being inserted into the inserting cavity from a second end of the joint body and clamped between the hard pipe and the inner wall of the inserting cavity; the inner peripheral wall of the inserting cavity is provided with a first sealing portion and/or a second sealing portion, the first sealing portion is in sealing abutting joint with the outer peripheral wall of the hard tube, and the second sealing portion is in sealing abutting joint with the outer peripheral wall of the hose.

According to the pipeline joint provided by the embodiment of the invention, the hard pipe and the hose are inserted into the insertion cavity to realize the connection of the hard pipe and the hose, and the first sealing part and the second sealing part are arranged on the inner peripheral wall of the insertion cavity, so that the first sealing part can be in sealing contact with the outer peripheral wall of the hard pipe, and the second sealing part can be in sealing contact with the outer peripheral wall of the hose, the multiple sealing of a gap between the hose and the hard pipe is realized, the sealing property between the hose and the hard pipe is improved, the possibility of brake fluid leakage is reduced, and the reliability of the pipeline joint is improved.

According to the pipeline joint of some embodiments of the present invention, the inner peripheral wall of the plugging cavity is provided with a first sealing portion, and the first sealing portion is used for being in sealing and pressing contact with the matching portion of the outer peripheral wall of the hard pipe.

According to some embodiments of the pipe coupling of the present invention, one of the first sealing portion and the mating portion is configured as a first sealing groove and the other is configured as a sealing boss that seals against and within the first sealing groove.

According to the pipeline joint of some embodiments of the present invention, the first seal groove is disposed on the inner circumferential wall of the insertion cavity, and the depth of the first seal groove along the radial direction of the joint body is L, so as to satisfy the following requirements: l is more than or equal to 1mm.

According to the pipeline connector of some embodiments of the present invention, the second sealing portion is configured as a second sealing groove, an inner wall of the plugging cavity is in interference fit with an outer circumferential wall of the hose, and an inner wall of the second sealing groove is used for being in sealing press-contact with the convex portion of the outer circumferential wall of the hose, which is deformed by pressure.

According to the pipeline joint of some embodiments of the present invention, the second sealing groove is a plurality of second sealing grooves, and the plurality of second sealing grooves are sequentially spaced apart in the axial direction of the joint body.

According to the pipeline connector of some embodiments of the present invention, the inner wall of the second sealing groove includes a guide surface and a stop surface, the plane of the stop surface is perpendicular to the axial direction of the connector body and abuts against the protruding portion, and the protruding portion is adapted to slide along the guide surface when the hose enters the insertion cavity.

According to the pipeline connector of some embodiments of the invention, the second end of the connector body is formed with a guide opening, the opening width of the guide opening is gradually increased towards the direction away from the plugging cavity, and the hose is suitable for entering the plugging cavity along the guide opening.

The invention also provides a pipeline connecting assembly.

The pipeline connecting assembly comprises a hose, a hard pipe and the pipeline joint in any embodiment.

According to the pipeline connecting assembly provided by the embodiment of the invention, the hard pipe and the hose are inserted into the insertion cavity, so that the hard pipe and the hose are connected, the first sealing part and the second sealing part are arranged on the inner peripheral wall of the insertion cavity, so that the first sealing part can be in sealing contact with the outer peripheral wall of the hard pipe, the second sealing part can be in sealing contact with the outer peripheral wall of the hose, the multiple sealing of the gap between the hose and the hard pipe is realized, the sealing property between the hose and the hard pipe is improved, the possibility of brake fluid leakage is reduced, and the reliability of the pipeline connecting assembly is improved.

The invention also provides a vehicle.

According to the vehicle of the embodiment of the invention, the pipeline connecting assembly is arranged.

According to the vehicle provided by the embodiment of the invention, the hard pipe and the hose are inserted into the insertion cavity to be connected, and the first sealing part and the second sealing part are arranged on the inner peripheral wall of the insertion cavity, so that the first sealing part can be in sealing contact with the outer peripheral wall of the hard pipe, and the second sealing part can be in sealing contact with the outer peripheral wall of the hose, the gap between the hose and the hard pipe is sealed in multiple ways, the sealing property between the hose and the hard pipe is improved, the possibility of brake fluid leakage is reduced, the reliability of the pipeline connecting assembly is improved, and the safety of the vehicle is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a tubing connection assembly according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a tubing connection assembly according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a pipe coupling according to an embodiment of the present invention.

Reference numerals:

the piping connection assembly 100 is provided with a piping connection assembly,

a pipeline joint 1, a joint body 11, an insertion cavity 12, a first sealing groove 13, a second sealing groove 14, a guide surface 141, a stop surface 142, a guide opening 15,

hose 2, hard tube 3, sealed boss 31.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

Next, referring to the drawings, a pipe joint 1 according to an embodiment of the present invention is described.

It should be noted that, the automobile brake system is generally constructed by using the hard tube 3, due to the limitation of the space in the automobile, the hard tube 3 needs to be divided into a plurality of sections, two adjacent sections of hard tubes 3 are connected by the bendable hose 2, and the pipeline joint 1 is used for connecting the hose 2 and the hard tube 3 together, so that the brake fluid can flow along the hose 2 and the hard tube 3, thereby realizing the assembly of the automobile brake system.

Referring to fig. 1 to 3, a pipe joint 1 according to an embodiment of the present invention includes: the joint body 11 is provided with an inserting cavity 12, the inserting cavity 12 is opened at two ends of the joint body 11, the hard pipe 3 is suitable for being inserted into the inserting cavity 12 from a first end of the joint body 11, and the hose 2 is suitable for being inserted into the inserting cavity 12 from a second end of the joint body 11 and clamped between the hard pipe 3 and the inner wall of the inserting cavity 12; the inner peripheral wall of the plugging cavity 12 is provided with a first sealing part and/or a second sealing part, the first sealing part is in sealing abutting joint with the outer peripheral wall of the hard tube 3, and the second sealing part is in sealing abutting joint with the outer peripheral wall of the hose 2.

Therefore, multiple sealing of the gap between the hose 2 and the hard pipe 3 can be realized, the sealing performance between the hose 2 and the hard pipe 3 is improved, the possibility of brake fluid leakage is reduced, and the reliability of the pipeline joint 1 is improved.

For example, referring to fig. 2, the pipe joint 1 is provided with a joint body 11, the joint body 11 is configured in a tubular shape, a cylindrical insertion cavity 12 is formed in the joint body 11, and both ends of the insertion cavity 12 in the length direction of the joint body 11 are opened outward to form an open opening. Referring to fig. 3, the outer diameter of the hard tube 3 is set to be smaller than the diameter of the plugging chamber 12, the hard tube 3 can be inserted into the plugging chamber 12 from the first end of the joint body 11 through the open opening, and the outer circumferential wall of the hard tube 3 is spaced apart from the inner circumferential wall of the plugging chamber 12.

The external diameter of hose 2 sets up to be greater than the diameter of grafting chamber 12, and the internal diameter of hose 2 equals with the external diameter of hard tube 3, and hose 2 can insert in grafting chamber 12 with the cover in the outside at hard tube 3 through opening from the second end of joint body 11, and the periphery wall of hose 2 is used for offseting with the internal perisporium in grafting chamber 12 for hose 2 can press from both sides and establish between the inner wall of hard tube 3 and grafting chamber 12, in order to realize hose 2 and hard tube 3's connection.

Wherein, a first sealing part can be arranged on the inner peripheral wall of the plugging cavity 12; alternatively, a second sealing portion may be provided on the inner circumferential wall of the plugging chamber 12; alternatively, the first seal portion and the second seal portion may be provided at an interval on the inner peripheral wall of the socket chamber 12. First sealing is staggered with hose 2 and is set up, and first sealing is used for supporting along the circumference with the periphery wall of hard tube 3 is sealed to press to seal the clearance between hard tube 3 and grafting chamber 12, and the second sealing is just setting up hose 2, and the second sealing offsets along circumference and hose 2's periphery wall, and the second sealing is used for sealing the clearance between hose 2 and grafting chamber 12, and is used for pressing the internal perisporium of hose 2 to on the periphery wall of hard tube 3. Therefore, the inner cavities of the hard tube 3 and the hose 2 can be separated from the inserting cavity 12, the inserting cavity 12 is separated from the outside, multiple sealing at the pipeline joint 1 is realized, and brake fluid is prevented from directly flowing out of the pipeline joint 1 through a gap between the hose 2 and the hard tube 3. Therefore, the sealing performance between the hose 2 and the hard pipe 3 is improved, the possibility of brake fluid leakage between the hose 2 and the hard pipe 3 is reduced, and the reliability and the practicability of the pipeline joint 1 are improved.

According to the pipeline joint 1 provided by the embodiment of the invention, the hard pipe 3 and the hose 2 are inserted into the insertion cavity 12 to realize the connection of the hard pipe 3 and the hose 2, and the first sealing part and the second sealing part are arranged on the inner peripheral wall of the insertion cavity 12, so that the first sealing part can be in sealing contact with the outer peripheral wall of the hard pipe 3, and the second sealing part can be in sealing contact with the outer peripheral wall of the hose 2, the gap between the hose 2 and the hard pipe 3 is sealed in multiple ways, the sealing property between the hose 2 and the hard pipe 3 is improved, the possibility of brake fluid leakage is reduced, and the reliability of the pipeline joint 1 is improved.

In some embodiments of the present invention, the pipeline joint 1 may be made of steel No. 20, so that the pipeline joint 1 has good ductility, and the inner circumferential wall of the plugging chamber 12 may be galvanized to avoid corrosion of the pipeline joint 1, thereby improving reliability and stability of the pipeline joint 1.

In some embodiments of the present invention, the inner circumferential wall of the plugging chamber 12 is provided with a first sealing portion, and the first sealing portion is used for being pressed and sealed with a matching portion of the outer circumferential wall of the hard tube 3. For example, referring to fig. 3, a first sealing portion may be disposed at the inner circumferential wall of the plugging chamber 12, and a matching portion may be disposed at the outer circumferential wall of the hard tube 3, so that after the hard tube 3 is inserted into the plugging chamber 12, the matching portion may be pressed against the first sealing portion in a sealing manner to seal a gap between the outer circumferential wall of the hard tube 3 and the inner circumferential wall of the plugging chamber 12. Therefore, the sealing performance between the hard tube 3 and the plug-in cavity 12 is improved, and the possibility of brake fluid leakage is reduced.

In some embodiments of the present invention, one of the first sealing portion and the mating portion is configured as a first seal groove 13 and the other is configured as a seal boss 31, the seal boss 31 being sealed against within the first seal groove 13.

For example, referring to fig. 3, a first sealing groove 13 may be provided at the inner circumferential wall of the plugging chamber 12, the first sealing groove 13 is provided as an annular structure that is recessed outward in the radial direction of the joint body 11, and a sealing boss 31 is provided at the outer circumferential wall of the hard tube 3, the sealing boss 31 is configured as an annular structure that is raised outward in the radial direction of the joint body 11; alternatively, a sealing boss 31 may be provided at the inner circumferential wall of the plugging chamber 12, the sealing boss 31 is configured as an annular structure protruding inward in the radial direction of the joint body 11, and a sealing groove provided as an annular structure recessed inward in the radial direction of the joint body 11 is provided at the outer circumferential wall of the hard tube 3. In this way, seal boss 31 may be inserted into first seal groove 13 such that seal boss 31 may be circumferentially sealed against first seal groove 13. Therefore, the effective sealing between the hard pipe 3 and the pipeline joint 1 is realized, the sealing performance between the hard pipe 3 and the plug-in cavity 12 is improved, and the possibility of brake fluid leakage is reduced.

In some embodiments of the present invention, as shown in fig. 2, the first seal groove 13 is disposed on the inner circumferential wall of the insertion cavity 12, and a depth of the first seal groove 13 along the radial direction of the joint body 11 is L, which satisfies: l is more than or equal to 1mm. For example, the depth L of the first seal groove 13 in the radial direction of the joint body 11 may be set to 1mm; or the depth L of the first seal groove 13 in the radial direction of the joint body 11 is set to 1.2mm; or the depth L of the first sealing groove 13 along the radial direction of the joint body 11 is set to be 1.5mm; or may be designed flexibly according to the experience of the designer and the size of the pipe joint 1, which is not limited in the present application.

Through the arrangement, a larger sealing size is formed between the first sealing groove 13 and the sealing boss 31, the improvement of the sealing performance between the hard pipe 3 and the pipeline joint 1 is facilitated, and the practicability and the reliability of the pipeline joint 1 are improved.

In some embodiments of the present invention, the second sealing portion is configured as a second sealing groove 14, an inner wall of the plugging chamber 12 is in interference fit with an outer circumferential wall of the hose 2, and an inner wall of the second sealing groove 14 is used for sealing and pressing against a convex portion of the outer circumferential wall of the hose 2, which is deformed by pressure.

For example, as shown in fig. 2 to 3, a second sealing portion may be provided at the inner circumferential wall of the plug cavity 12 at intervals of the first sealing portion, the second sealing portion being configured as a second sealing groove 14, and the second sealing groove 14 is provided as an annular structure that is recessed outward in the radial direction of the joint body 11. Wherein, can set up the external diameter that hose 2 is greater than the internal diameter of grafting chamber 12, when hose 2 pegged graft to grafting chamber 12, the inner wall of grafting chamber 12 can with hose 2 interference fit, the surface pressurized deformation of hose 2 is in order to form the bulge, the bulge can extend in second seal groove 14 and with the sealed pressure that supports of second seal groove 14. In this way, a sealing engagement of the outer circumferential wall of the hose 2 with the inner circumferential wall of the plug-in cavity 12 can be achieved. Therefore, the installation stability of the hose 2 is improved, the connection sealing performance of the hose 2 and the hard pipe 3 is improved, and the possibility of brake fluid leakage is reduced.

In some embodiments of the present invention, the second seal groove 14 is multiple, and the multiple second seal grooves 14 are sequentially spaced apart in the axial direction of the joint body 11. For example, referring to fig. 2, the second seal grooves 14 may be provided in plural, the plural second seal grooves 14 are distributed at intervals in the axial direction of the joint body 11, and the inner peripheral wall of the insertion cavity 12 may press the outer peripheral wall of the hose 2, so that a plurality of convex portions are formed at the outer peripheral wall of the hose 2, and the plurality of convex portions are in one-to-one correspondence with the plural second seal grooves 14 to achieve effective sealing between the hose 2 and the pipeline joint 1. Therefore, the connection sealing performance between the hose 2 and the hard pipe 3 is improved, the possibility of brake fluid leakage is reduced, the installation stability of the hose 2 is improved, and the possibility of separation of the hose 2 and the hard pipe 3 is reduced.

In some embodiments of the present invention, the inner wall of the second sealing groove 14 includes a guide surface 141 and a stop surface 142, the stop surface 142 is located on a plane perpendicular to the axial direction of the connector body 11 and is pressed against the protruding portion, and the protruding portion is adapted to slide along the guide surface 141 when the hose 2 enters the plug cavity 12.

For example, referring to fig. 2, the second seal groove 14 includes a guide surface 141 and a stop surface 142, a side surface of the second seal groove 14 near the first end is provided as the guide surface 141, the guide surface 141 is configured to extend outward in a radial direction of the joint body 11 in a direction away from the second end, a side surface of the second seal groove 14 near the second end is provided as the stop surface 142, and the stop surface 142 is perpendicular to an axial direction of the joint body 11. Thus, when the hose 2 extends to the inserting cavity 12, the protruding portion can abut against the guiding surface 141, the guiding surface 141 is used for guiding the hose 2, so that the hose 2 can be installed in place, and when the hose 2 receives an acting force of being separated from the joint body 11, the stopping surface 142 can abut against the protruding portion, so that the hose 2 is prevented from being separated from the pipeline joint 1.

Through the arrangement, the installation of the hose 2 and the pipeline joint 1 is simple, the installation difficulty of the hose 2 is reduced, the installation stability of the hose 2 and the pipeline joint 1 is improved, the installation stability of the hose 2 and the hard pipe 3 is improved, and the possibility of brake fluid leakage is reduced.

In some embodiments of the invention, the second end of the connector body 11 is formed with a guide opening 15, the opening width of the guide opening 15 is arranged to increase gradually in a direction away from the plug cavity 12, and the hose 2 is adapted to enter the plug cavity 12 along the guide opening 15. For example, referring to fig. 2, an opening of the second end of the joint body 11 may be provided as the guide opening 15, and an opening width of the guide opening 15 is provided to gradually increase toward a direction away from the first end, so that the guide opening 15 is configured in a horn shape. In this way, the hose 2 can be extended from the second end of the joint body 11 into the guide opening 15 and can be smoothly inserted into the socket chamber 12 under the guide of the guide opening 15.

For example, the opening angle a of the guide opening 15 may be set to satisfy: 58 DEG.ltoreq.a.ltoreq.62 DEG, for example, the opening angle a of the guide opening 15 can be set to 60 deg. Thereby, the guide opening 15 is made to have an appropriate guide angle, which is advantageous for improving the guide performance of the guide opening 15.

Through the arrangement, the installation difficulty of the hose 2 is reduced, the practicability of the pipeline joint 1 is improved, and the maintenance difficulty is reduced.

The invention also provides a pipeline connecting component 100.

As shown in fig. 1, a pipeline connecting assembly 100 according to an embodiment of the present invention includes a flexible pipe 2, a hard pipe 3, and a pipeline joint 1 according to any one of the embodiments. Through pegging graft hard tube 3 and hose 2 to grafting chamber 12 in, in order to realize the connection of hard tube 3 and hose 2, and through be equipped with first sealing and second sealing on the internal perisporium in grafting chamber 12, make first sealing can support with the periphery wall of hard tube 3 is sealed, and make the second sealing can support with the periphery wall of hose 2 is sealed, multiple sealing in clearance between hose 2 and the hard tube 3 has been realized, the leakproofness between hose 2 and the hard tube 3 has been improved, the possibility of brake fluid leakage has been reduced, the reliability of pipeline coupling assembling 100 has been improved.

The invention further provides a vehicle.

According to the vehicle of the embodiment of the invention, the pipeline connecting assembly 100 of any one embodiment is provided. Through pegging graft hard tube 3 and hose 2 to grafting chamber 12 in, in order to realize the connection of hard tube 3 and hose 2, and through be equipped with first sealing and second sealing on the internal perisporium in grafting chamber 12, make first sealing can support with the periphery wall of hard tube 3 is sealed, and make the second sealing can support with the periphery wall of hose 2 is sealed, multiple sealing between hose 2 and the hard tube 3 has been realized, the leakproofness between hose 2 and the hard tube 3 has been improved, the possibility of brake fluid leakage has been reduced, the reliability of pipeline coupling assembling 100 has been improved, thereby the security of vehicle has been improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pipe joint (1), said pipe joint (1) being used for connecting a hose (2) and a hard pipe (3), characterized in that it comprises:

the joint body (11), the joint body (11) is formed with an insertion cavity (12), the insertion cavity (12) is opened at two ends of the joint body (11), the hard tube (3) is suitable for being inserted into the insertion cavity (12) from a first end of the joint body (11), and the hose (2) is suitable for being inserted into the insertion cavity (12) from a second end of the joint body (11) and clamped between the hard tube (3) and the inner wall of the insertion cavity (12);

the inner peripheral wall of the plug-in cavity (12) is provided with a first sealing part and/or a second sealing part, the first sealing part is in sealing abutting-against with the outer peripheral wall of the hard tube (3), and the second sealing part is in sealing abutting-against with the outer peripheral wall of the hose (2).

2. A pipe joint (1) according to claim 1, wherein the inner peripheral wall of the plugging chamber (12) is provided with a first sealing portion for sealing and pressing against the mating portion of the outer peripheral wall of the hard pipe (3).

3. The pipe joint (1) according to claim 2, wherein one of the first sealing portion and the mating portion is configured as a first sealing groove (13) and the other is configured as a sealing boss (31), the sealing boss (31) being sealingly pressed against the first sealing groove (13).

4. The pipeline joint (1) according to claim 2, wherein the first sealing groove (13) is provided on the inner peripheral wall of the plugging cavity (12), and the first sealing groove (13) has a radial depth L along the joint body (11), which satisfies: l is more than or equal to 1mm.

5. The line connection (1) according to claim 1, characterized in that the second sealing portion is configured as a second sealing groove (14), an inner wall of the plug cavity (12) is in interference fit with an outer circumferential wall of the hose (2), and an inner wall of the second sealing groove (14) is used for being in sealing press-contact with a bulge portion of the outer circumferential wall of the hose (2) which is deformed under pressure.

6. The pipe joint (1) according to claim 5, wherein the second seal groove (14) is plural, and the plural second seal grooves (14) are sequentially spaced apart in an axial direction of the joint body (11).

7. The line connection (1) of claim 5, characterized in that the inner wall of the second sealing groove (14) comprises a guide surface (141) and a stop surface (142), the stop surface (142) being located on a plane perpendicular to the axial direction of the connection body (11) and abutting against the bulge, and the bulge being adapted to slide along the guide surface (141) when the hose (2) enters the socket cavity (12).

8. Pipe connection (1) according to claim 1, characterized in that the second end of the connection body (11) is formed with a guide opening (15), the opening width of the guide opening (15) being arranged to increase gradually in the direction away from the plug-in cavity (12), the hose (2) being adapted to enter the plug-in cavity (12) along the guide opening (15).

9. A pipe connection assembly (100) comprising a hose (2), a wand (3) and a pipe fitting (1) as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that a conduit connection assembly (100) according to claim 9 is provided.