CN111828758A

CN111828758A - Pipeline connecting structure

Info

Publication number: CN111828758A
Application number: CN202010742715.XA
Authority: CN
Inventors: 孙光仙; 刘天伍; 孙海燕; 何敬梅
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2020-10-27

Abstract

The invention discloses a pipeline connecting structure which comprises an inner pipeline, an outer pipeline and a sealing bush structure, wherein one end of the inner pipeline is an inner connecting end, one end of the outer pipeline is an outer connecting end, the outer connecting end is sleeved on the inner connecting end, the sealing bush structure is sleeved in the outer connecting end and is sleeved outside the inner connecting end, and the matching surfaces of the inner connecting end and the outer connecting end are connected in a sealing mode through the sealing bush structure.

Description

Pipeline connecting structure

Technical Field

The invention relates to the technical field of automobile pipeline connection, in particular to a pipeline connection structure.

Background

There are many cooling circuits in the vehicle interior and the connections of these circuits (hose to wand) are typically made by fitting the hose over the wand and fastening it with a different type of clamp, most commonly a worm-type hose hoop. Because of its simple structure and low cost, it is widely used.

However, the structure has larger requirement on assembly space in the use process, and the space in the engine compartment of the automobile is smaller, so that the assembly is difficult.

Disclosure of Invention

The invention mainly aims to provide a pipeline connecting structure, and aims to solve the problems that in the prior art, when a hoop is used for pipeline connection, the requirement on an assembling space is high, the space in an automobile engine compartment is small, the assembling is difficult and the like.

In order to achieve the above object, the present invention provides a pipe connection structure, including:

one end of the inner pipeline is an inner connecting end;

one end of the outer pipeline is an outer connecting end, and the outer connecting end is sleeved on the inner connecting end; and the number of the first and second groups,

and the sealing bush structure is sleeved in the outer connecting end, sleeved outside the inner connecting end and used for sealing and connecting the matching surface of the inner connecting end and the outer connecting end.

Optionally, the seal bushing structure comprises:

the sealing bush is made of metal and is arranged in the outer connecting end in an interference mode; and the number of the first and second groups,

and the sealing ring is arranged between the sealing bushing and the inner connecting end.

Optionally, the inner pipeline is made of a metal material; and/or the presence of a gas in the gas,

the outer pipeline is made of rubber.

Optionally, an annular mounting groove is formed between the sealing bush and the inner connecting end;

the seal ring is arranged in the annular mounting groove.

Optionally, the seal ring is an O-ring seal; and/or the presence of a gas in the gas,

the inner wall surface of the sealing bush is concave to form the annular mounting groove.

Optionally, a locking structure is further disposed between the sealing bush and the inner connecting end.

Optionally, the middle position of the inner pipeline pointing to the middle position of the outer pipeline is taken as a first direction;

the locking structure includes:

the first locking bulge is arranged on the outer side wall of the inner connecting end and extends along the circumferential direction of the inner pipeline; and the number of the first and second groups,

the second locking bulge is arranged on the inner side wall of the sealing bushing and extends along the circumferential direction of the sealing bushing;

the first locking protrusion is located on the front side of the second locking protrusion along the first direction, and the first locking protrusion abuts against the side end of the second locking protrusion.

Optionally, the first locking protrusions and the second locking protrusions correspond to each other one by one to form a plurality of locking groups, and the locking groups are arranged at intervals along the circumferential direction of the inner pipeline.

Optionally, an inner guiding arc surface is arranged on the outer side surface of the inner connecting end.

Optionally, the sealing bush is provided with an outer guiding arc surface corresponding to an inner side wall surface of the port of the outer connecting end.

According to the technical scheme, the pipeline connecting structure comprises an inner pipeline, an outer pipeline and a sealing bushing structure, one end of the inner pipeline is an inner connecting end, one end of the outer pipeline is an outer connecting end, the outer connecting end is sleeved on the inner connecting end, the sealing bushing structure is sleeved in the outer connecting end and sleeved outside the inner connecting end, and the matching surfaces of the inner connecting end and the outer connecting end are connected in a sealing mode through the sealing bushing structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a pipe connection structure provided in the present invention;

FIG. 2 is a schematic cross-sectional view of the pipe connection of FIG. 1;

FIG. 3 is a schematic diagram of the inner pipe of FIG. 2;

fig. 4 is a schematic view of the structure of the sealing bush of fig. 2.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Pipeline connecting structure	4	Locking structure
1	Inner pipeline	41	A first locking protrusion
				2	External pipeline	42	Second locking projection
3	Sealing bush structure	a	Annular mounting groove
				31	Sealing bush	b	Inner guiding arc surface
32	Sealing ring	c	Outer guiding arc surface

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides a pipe connection structure, wherein fig. 1 to 4 are schematic structural diagrams of an embodiment of the pipe connection structure provided by the present invention.

Referring to fig. 1 to 3, the pipeline connecting structure 100 includes an inner pipeline 1, an outer pipeline 2 and a sealing bushing structure 3, one end of the inner pipeline 1 is an inner connecting end, one end of the outer pipeline 2 is an outer connecting end, the outer connecting end is sleeved on the inner connecting end, the sealing bushing structure 3 is sleeved in the outer connecting end and is sleeved outside the inner connecting end, and the matching surface of the inner connecting end and the matching surface of the outer connecting end are hermetically connected through the sealing bushing structure 3.

Specifically, the sealing bush structure 3 includes a sealing bush 31 and a sealing ring 32, the sealing bush 31 is made of metal, the sealing bush 31 is installed in the outer connecting end in an interference manner to realize the sealing connection between the sealing bush 31 and the outer pipeline 2, the sealing ring 32 is arranged between the sealing bush 31 and the inner connecting end, and the sealing bush 31 and the inner pipeline 1 are connected in a sealing manner through the sealing ring 32, so that the inner pipeline 1 and the outer pipeline 2 are connected in a sealing manner, and the sealing effect is good.

In order to facilitate the installation of the inner pipeline 1 and the outer pipeline 2, the inner pipeline 1 is made of metal, and the metal is hard, so that the outer connecting end is sleeved on the inner connecting end.

In order to facilitate the installation of the inner pipeline 1 and the outer pipeline 2, the outer pipeline 2 is made of rubber, the rubber is soft, and the outer connecting end is sleeved on the inner connecting end, so that the sealing bush 31 is installed in the outer connecting end in an interference manner.

It should be noted that, the above-mentioned characteristics that the material of the inner pipeline 1 is a metal material and the material of the outer pipeline 2 is a rubber material may be set simultaneously or alternatively, and when set simultaneously, the sealing effect is good.

In order to realize the installation of the sealing ring 32, an annular mounting groove a is formed between the sealing bush 31 and the inner connecting end, and the sealing ring 32 is installed in the annular mounting groove a, so that the sealing effect is good.

In order to facilitate the assembly and disassembly of the inner pipeline 1 and the outer pipeline 2, the sealing ring 32 is an O-shaped sealing ring 32, so that the insertion and extraction force for assembling the inner pipeline 1 and the outer pipeline 2 is reduced, the assembly and disassembly are facilitated, and the assembly efficiency is improved.

Referring to fig. 4, the inner wall surface of the sealing bush 31 is concavely formed with the annular mounting groove a, so as to be disposed. By placing the sealing ring 32 in the annular mounting groove a, the sealing ring 32 is in sealing contact with the side wall surface of the inner connecting end, and the sealing bush 31 is sealed with the inner connecting end.

In order to tightly connect the sealing bush 31 and the inner pipeline 1, referring to fig. 3 and 4, a locking structure 4 is further disposed between the sealing bush 31 and the inner connecting end, and by the locking effect of the locking structure 4, pipeline leakage caused by separation of the sealing bush 31 from the inner pipeline 1 in the use process is avoided.

Specifically, the middle position of the inner pipeline 1 pointing to the middle position of the outer pipeline 2 is taken as a first direction; the locking structure 4 comprises a first locking protrusion 41 and a second locking protrusion 42, the first locking protrusion 41 is disposed on the outer side wall of the inner connecting end and extends along the circumferential direction of the inner pipeline 1, the second locking protrusion 42 is disposed on the inner side wall of the sealing bushing 31 and extends along the circumferential direction of the sealing bushing 31, wherein, along the first direction, the first locking protrusion 41 is located at the front side of the second locking protrusion 42, and the first locking protrusion 41 abuts against the side end of the second locking protrusion 42, so that when the sealing bushing 31 is sleeved outside the inner connecting end, the outer pipeline 2 is rotated to make the first locking protrusion 41 and the second locking protrusion 42 dislocate, the inner pipeline is sleeved in the sealing bushing 31, and then the outer pipeline 2 is rotated to make the side ends of the first locking protrusion 41 and the second locking protrusion 42 abut against each other, the realization interior pipeline 1 with the locking of sealing bush 31 avoids interior pipeline 1 with sealing bush 31 breaks away from mutually, works as will disassemble interior pipeline 1 with during sealing bush 31, rotates outer pipeline 2 end, makes first locking arch 41 with the protruding 42 dislocation of second locking, then extracts outer pipeline 2 from interior pipeline 1, only needs to overcome the torsional force of outer pipeline 2 end and can realize disassembling easy operation.

It should be noted that, in order to avoid the abrasion between the outer side wall of the inner connecting end and the inner side wall of the seal bushing 31, the first locking protrusion 41 and the second locking protrusion 42 are arranged in an arc shape, so as to avoid the abrasion between the outer side wall of the inner connecting end and the inner side wall of the seal bushing 31 caused by the corner angle of the first locking protrusion 41 and the second locking protrusion 42.

Further, the first locking protrusions 41 and the second locking protrusions 42 are in one-to-one correspondence to form locking groups, the locking groups are arranged in a plurality of numbers and are arranged at intervals along the circumferential direction of the inner pipeline 1, and the inner pipeline 1 and the sealing bush 31 are firmly connected through the locking effect of the locking groups.

In order to facilitate the installation of the sealing ring 32, referring to fig. 1 and 3, an inner guiding arc surface b is arranged on the outer side surface of the inner connecting end, the inner guiding arc surface b is bent towards the axis of the inner pipeline 1, the space between the inner guiding arc surface b and the sealing bush 31 is increased, the installation of the sealing ring 32 is facilitated, the sealing ring 32 is prevented from being damaged, and the effect is good.

For the convenience of installation sealing washer 32, sealing bush 31 corresponds the inside wall face of the port of outer link is provided with outer guide arc surface c, outer guide arc surface c deviates from interior 1 axis of pipeline is crooked, has increased outer guide arc surface c with space between the interior pipeline 1 is convenient for sealing washer 32's installation, and avoid sealing washer 32 damages, and is effectual.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A pipe connecting structure, comprising:

one end of the inner pipeline is an inner connecting end;

2. The line connection of claim 1, wherein the seal bushing arrangement comprises:

3. The piping connection structure according to claim 2, wherein the inner piping is made of a metal material; and/or the presence of a gas in the gas,

the outer pipeline is made of rubber.

4. The pipe connection according to claim 2, wherein an annular mounting groove is formed between the sealing bush and the inner connection end;

the seal ring is arranged in the annular mounting groove.

5. The line connection according to claim 4, wherein the seal ring is an O-ring seal; and/or the presence of a gas in the gas,

6. The conduit connection of claim 2, wherein a locking structure is further provided between the seal bushing and the inner connection end.

7. The piping connection structure according to claim 6, wherein a first direction is taken in which a middle position of the inner piping is directed toward a middle position of the outer piping;

the locking structure includes:

8. The pipe connection structure according to claim 7, wherein the first locking projections and the second locking projections correspond to each other in one-to-one manner to form locking groups, and the locking groups are provided in plurality and are arranged at intervals in the circumferential direction of the inner pipe.

9. The piping connection structure of claim 2, wherein an inner guiding arc surface is provided on an outer side surface of the inner connection end.

10. The pipe connection structure according to claim 2, wherein the seal bush is provided with an outer guide arc surface corresponding to an inner side wall surface of the port of the outer connection end.