CN220851179U - Pipeline connection structure and automobile oil cooling pipeline system - Google Patents

Abstract

The utility model provides a pipeline connecting structure and an automobile oil cooling pipeline system, and relates to the technical field of automobile oil cooling pipeline structures, comprising an aluminum pipe, a rubber pipe and a fastening sleeve; the aluminum pipe comprises a core structure and an outer layer structure coated on the outer peripheral surface of the core structure, the core structure at one end of the aluminum pipe is exposed out of the outer layer structure to form a bare core, and the bare core is inserted into one end of the rubber pipe and connected with one end of the rubber pipe in an interference fit manner; the fastening sleeve is sleeved on the outer peripheral surface of the splicing part of the rubber tube and the bare core part and is radially inwards extruded until the rubber tube is deformed, so that the rubber tube is tightly attached to the outer peripheral surface of the bare core part. The utility model relieves the technical problems that the existing automobile oil-cooled pipeline connecting structure cannot meet the internal medium impact force under the pressure of more than 1.2MPa, slow leakage is easy to form, and medium in the pipeline is leaked.

Description

Pipeline connection structure and automobile oil cooling pipeline system

Technical Field

The utility model relates to the technical field of automobile oil cooling pipeline structures, in particular to a pipeline connection structure and an automobile oil cooling pipeline system.

Background

For the automobile field, the connecting structure of the existing oil cooling pipeline mainly comprises an aluminum pipe end upsetting bag and a tightly matched structure of a rubber pipe, and particularly comprises two sealing upsetting bag structures with sealing functions and a positioning upsetting bag structure for positioning the rubber pipe and a fastening sleeve, wherein the fastening sleeve is buckled into a plastic deformation shape with a buckling mold on buckling equipment, the sealing principle of the structure is that the rubber pipe and the plastic deformation fastening sleeve are matched to form the tightly connected structure through the two sealing upsetting bag structures on the aluminum pipe, and finally, buckling sealing of the aluminum pipe, the rubber pipe and the fastening sleeve is realized.

The existing structure can meet the requirement that the conventional vehicle type oil cooling pipeline reliably operates under the pressure of 1.2MPa, but cannot meet the high-pressure operating pressure (the maximum instantaneous operating pressure is about 2 MPa) of the SUV pipeline with the cross-country performance, the two heading package structures cannot meet the impact force of internal media under the high-pressure environment, slow leakage is easy to form, and the media in the pipeline are leaked.

Disclosure of utility model

The utility model aims to provide a pipeline connecting structure and an automobile oil-cooled pipeline system, so as to solve the technical problem that the existing automobile oil-cooled pipeline connecting structure cannot meet the pressure of more than 1.2MPa, internal medium impact force is easy to form slow leakage, and medium in a pipeline is easy to leak.

In order to achieve the above purpose, the embodiment of the present utility model adopts the following technical scheme:

In a first aspect, an embodiment of the present utility model provides a pipe connection structure, including an aluminum pipe, a rubber pipe, and a fastening sleeve; the aluminum pipe comprises a core structure and an outer layer structure coated on the outer peripheral surface of the core structure, the core structure at one end of the aluminum pipe is exposed out of the outer layer structure to form a bare core, and the bare core is inserted into one end of the rubber pipe and connected with one end of the rubber pipe in an interference fit manner; the fastening sleeve is sleeved on the outer peripheral surface of the splicing part of the rubber tube and the bare core part and is radially inwards extruded until the rubber tube is deformed, so that the rubber tube is tightly attached to the outer peripheral surface of the bare core part.

In the pipeline connecting structure provided by the embodiment, the bare core of the aluminum pipe is spliced with the end part of the rubber pipe, the rubber pipe with elastic deformation is extruded and tightly attached to the outer peripheral surface of the bare core of the aluminum pipe through plastic deformation of the fastening sleeve, extrusion strengthening sealing is carried out, and the sealing performance is long-term and effective; the pipeline connecting structure is applied to an automobile oil cooling pipeline system, and can meet the requirement of no leakage of high-pressure operating pressure (the maximum instantaneous operating pressure is about 2 MPa) of an oil cooling pipeline of an off-road SUV automobile through testing.

In summary, this embodiment has alleviated current car oil-cooled pipeline connection structure and can't satisfy under the pressure more than 1.2MPa, and inside medium impact force forms slowly to reveal easily, leads to the technical problem that the medium leaked in the pipeline.

In an alternative implementation of this embodiment, it is preferable that one end of the fastening sleeve covers and presses inwards against a portion of the bare core that is not inserted into the hose.

Further preferably, an annular sealing groove is formed in the peripheral surface of the part, which is not inserted into the rubber tube, of the bare core part, the circumferential direction of the annular sealing groove is wound on the bare core part, and one end of the fastening sleeve is pressed and tightly attached in the annular sealing groove.

In an alternative implementation manner of the present embodiment, it is preferable that a plurality of sealing rings are sleeved on the outer peripheral surface of the bare core at intervals, and the sealing rings seal a gap between the inner peripheral surface of the rubber tube and the outer peripheral surface of the bare core.

Further preferably, a plurality of annular limiting grooves are formed in the outer peripheral surface of the bare core part, the annular limiting grooves are arranged at intervals along the length direction of the aluminum pipe and are circumferentially around the bare core part, and the sealing rings are correspondingly arranged in the annular limiting grooves.

In an alternative implementation manner of the present embodiment, preferably, the outer peripheral surface of the bare core is provided with a plurality of annular protrusions arranged at intervals along the length direction of the aluminum pipe and surrounding the circumference of the bare core.

In an alternative implementation of this embodiment, it is preferable that the overall outer contour of the bare core portion has an inverted conical surface shape in which the outer diameter gradually decreases from an end far from the rubber tube to an end near to the rubber tube.

In an alternative implementation manner of this embodiment, it is preferable that the fastening sleeve is provided with a buckling protrusion on an inner circumferential surface.

Further preferably, the buckling protrusion comprises an end sealing buckling protrusion arranged at one end of the fastening sleeve close to the aluminum pipe.

In a second aspect, an embodiment of the present utility model provides an automotive oil-cooled pipeline system, including a pipeline connection structure according to any one of the foregoing embodiments.

Because the automobile oil-cooled pipeline system provided by the embodiment of the utility model comprises the pipeline connecting structure provided by the first aspect, the automobile oil-cooled pipeline system provided by the embodiment of the utility model can achieve all the beneficial effects achieved by the pipeline connecting structure provided by the first aspect.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a half cross-sectional view of an assembled structure of a piping connection structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing the overall structure of a bare core in the pipe connection structure shown in FIG. 1;

FIG. 3 is a cross-sectional view of the entire structure of the hose in the pipe connection structure shown in FIG. 1;

fig. 4 is a schematic diagram of the overall structure of the seal ring in the pipe connection structure shown in fig. 1.

Icon: 1-aluminum tube; 11-bare core; 111-an annular seal groove; 112-an annular limiting groove; 113-annular projection; 2, a rubber tube; 3-fastening sleeve; 4-sealing rings.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters designate like items in the drawings, and thus once an item is defined in one drawing, no further definition or explanation thereof is necessary in the subsequent drawings.

In the description of the present utility model, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Example 1

The present embodiment provides a pipe connection structure including an aluminum pipe 1, a rubber pipe 2, and a fastening sleeve 3, referring to fig. 1 to 3. Specifically, the aluminum pipe 1 comprises a core structure and an outer layer structure coated on the outer peripheral surface of the core structure, the core structure at one end of the aluminum pipe 1 is exposed out of the outer layer structure to form a bare core 11, and the bare core 11 is inserted into one end of the rubber pipe 2 and connected with one end of the rubber pipe 2 in an interference fit manner; the fastening sleeve 3 is sleeved on the outer peripheral surface of the splicing part of the rubber tube 2 and the bare core 11 and is radially inwards extruded until the rubber tube 2 is deformed, so that the rubber tube 2 is tightly attached to the outer peripheral surface of the bare core 11.

In the above pipe connection structure provided in this embodiment, the bare core 11 of the aluminum pipe 1 is inserted into the end of the rubber pipe 2, and the rubber pipe 2 with elastic deformation is pressed and tightly attached to the outer peripheral surface of the bare core 11 of the aluminum pipe 1 by plastic deformation of the fastening sleeve 3 to perform extrusion reinforced sealing, so that the sealing performance is long-term and effective; the pipeline connecting structure is applied to an automobile oil cooling pipeline system, and can meet the requirement of no leakage of high-pressure operating pressure (the maximum instantaneous operating pressure is about 2 MPa) of an oil cooling pipeline of an off-road SUV automobile through testing.

In summary, this embodiment has alleviated current car oil-cooled pipeline connection structure and can't satisfy under the pressure more than 1.2MPa, and inside medium impact force forms slowly to reveal easily, leads to the technical problem that the medium leaked in the pipeline.

In the embodiment, the rubber tube 2 can be of a full rubber tube structure, or of a three-layer tube structure comprising a rubber layer, a nylon woven layer and a rubber layer from inside to outside; the fastening sleeve 3 is preferably of aluminum cylindrical structure.

In an alternative implementation of the present embodiment, it is preferable that one end of the fastening sleeve 3 covers and presses inwards to be close to the part of the bare core 11 which is not inserted into the rubber tube 2; further preferably, an annular seal groove 111 is provided around the outer peripheral surface of the portion of the bare core 11 which is not inserted into the rubber tube 2, and one end of the fastening sleeve 3 is pressed and abutted against the annular seal groove 111. The end of the fastening sleeve 3 is fixed in the annular sealing groove 111 to form a positioning sealing structure, so that the sealing is tighter and the sealing structure is more stable, thereby being beneficial to long-term effective sealing.

Referring to fig. 4, in order to further increase the sealing reliability, in an alternative implementation of the present embodiment, a plurality of sealing rings 4 are preferably provided on the outer circumferential surface of the bare core 11 in a spaced manner, so as to use the sealing rings 4 as auxiliary sealing structures to assist in sealing the gap between the inner circumferential surface of the rubber tube 2 and the outer circumferential surface of the bare core 11. Further preferably, a plurality of annular limiting grooves 112 are formed in the outer peripheral surface of the bare core 11 at intervals along the length direction of the aluminum pipe 1 and circumferentially around the bare core 11, and the sealing rings 4 are correspondingly arranged in the annular limiting grooves 112 so as to position and prevent the sealing rings 4 from falling off by using the annular limiting grooves 112.

With continued reference to fig. 1 and 2, in an alternative implementation of the present embodiment, it is preferable that the outer peripheral surface of the bare core 11 is provided with a plurality of annular protrusions 113 arranged at intervals along the length direction of the aluminum pipe 1 and circumferentially around the bare core 11, and the annular protrusions 113 can contact the inner peripheral surface of the fastening sleeve 3 as structures such as seal teeth or seal ribs, and play a role in preventing the fastening sleeve 3 from sliding relative to the bare core 11, thereby improving connection stability.

Furthermore, in an alternative implementation manner of the present embodiment, it is preferable that the overall outer contour of the bare core 11 is in an inverted conical surface shape gradually decreasing in outer diameter from one end far from the rubber tube 2 to one end close to the rubber tube 2, so as to facilitate rapid insertion of the bare core 11 into an inner cavity of one end of the rubber tube 2; preferably, a buckling protrusion (not shown) is provided on the inner circumferential surface of the fastening sleeve 3, so that the radially inward pressurizing and fastening action of the fastening sleeve 3 is improved, and the sealing effect is further improved.

In a most preferred structure of this embodiment, as shown in fig. 1 and 2, the above structures are simultaneously provided, at least 3 annular protrusions 113 divide the entire outer peripheral surface of the bare core 11 into a plurality of partition surfaces, and the shape of the above-mentioned buckling protrusions is adapted to each partition surface, so that when the fastening sleeve 3 is radially pressed inward, each buckling protrusion is in concave-convex fit with each partition surface to form a positioning and locking structure, thereby improving the sealing performance between the inner peripheral surface of one end of the fastening sleeve 3 and the outer peripheral surface of one end of the bare core 11 after extrusion, and simultaneously improving the sealing performance between the inner peripheral surface of the other end of the fastening sleeve 3 after extrusion, one end of the rubber tube and the outer peripheral surface of the other end of the bare core 11.

In this embodiment, it is further preferable that the above-mentioned buckling protrusion includes an end seal buckling protrusion provided at one end of the fastening sleeve 3 near the aluminum pipe 1 to improve the end seal performance, and the structure of the end seal buckling protrusion may be simultaneously provided with the structure of the above-mentioned annular seal groove 111 to achieve a better end seal effect.

Example two

The present embodiment provides an automotive oil-cooled pipeline system, including the pipeline connection structure provided in any one of the optional embodiments of the first embodiment.

Since the automotive oil-cooled pipeline system provided in the present embodiment includes the pipeline connection structure described in embodiment one, the automotive oil-cooled pipeline system provided in the present embodiment can achieve all the beneficial effects achieved by the pipeline connection structure in embodiment one, and the specific structure and the effects achieved by the automotive oil-cooled pipeline system can be obtained by referring to each optional or preferred implementation mode in embodiment one.

Finally, it should be noted that:

1. The pipeline connecting structure provided by the embodiment not only can be applied to an automobile oil cooling pipeline system, but also can be applied to connecting pipelines of other aluminum pipes 1 and rubber pipes 2;

2. in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are only required to be seen with each other; the above embodiments in the present specification are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. A pipeline connection structure, its characterized in that: comprises an aluminum pipe (1), a rubber pipe (2) and a fastening sleeve (3);

The aluminum pipe (1) comprises a core structure and an outer layer structure coated on the outer peripheral surface of the core structure, the core structure at one end of the aluminum pipe (1) is exposed out of the outer layer structure and is a bare core (11), and the bare core (11) is inserted into one end of the rubber pipe (2) and connected with one end of the rubber pipe (2) in an interference fit manner;

The fastening sleeve (3) is sleeved on the outer peripheral surface of the splicing part of the rubber tube (2) and the bare core part (11) and is radially inwards extruded until the rubber tube (2) is deformed, so that the rubber tube (2) is tightly attached to the outer peripheral surface of the bare core part (11).

2. The pipe connection structure according to claim 1, wherein: one end of the fastening sleeve (3) covers and is pressed inwards to be tightly attached to the part of the bare core part (11) which is not inserted into the rubber tube (2).

3. The pipe connection structure according to claim 2, wherein: the outer peripheral surface of the part, which is not inserted into the rubber tube (2), of the bare core part (11) is provided with an annular sealing groove (111) which surrounds the circumference of the bare core part (11), and one end of the fastening sleeve (3) is pressed and tightly attached in the annular sealing groove (111).

4. The pipe connection structure according to claim 1, wherein: a plurality of sealing rings (4) are sleeved on the outer peripheral surface of the bare core (11) at intervals, and the sealing rings (4) seal gaps between the inner peripheral surface of the rubber tube (2) and the outer peripheral surface of the bare core (11).

5. The pipe connection according to claim 4, wherein: the outer peripheral surface of the bare core part (11) is provided with a plurality of annular limiting grooves (112) which are arranged at intervals along the length direction of the aluminum pipe (1) and are circumferentially around the bare core part (11), and the sealing ring (4) is correspondingly arranged in the annular limiting grooves (112).

6. The pipe connection structure according to claim 1, wherein: the outer peripheral surface of the bare core (11) is provided with a plurality of annular protrusions (113) which are arranged at intervals along the length direction of the aluminum pipe (1) and are circumferentially around the bare core (11).

7. The pipe connection structure according to claim 1, wherein: the overall outline of the bare core part (11) is in an inverted conical surface shape with the outer diameter gradually decreasing from one end far away from the rubber tube (2) to one end close to the rubber tube (2).

8. The pipe connection structure according to claim 1, wherein: the inner peripheral surface of the fastening sleeve (3) is provided with a buckling bulge.

9. The pipe connection structure according to claim 8, wherein: the buckling and pressing protrusion comprises an end sealing buckling and pressing protrusion which is arranged at one end of the fastening sleeve (3) close to the aluminum pipe (1).

10. An automotive oil-cooled pipeline system, characterized in that: comprising a pipe connection according to any one of claims 1 to 9.