CN219570220U - Gas pipe - Google Patents

Abstract

The utility model provides a gas transmission pipe, which comprises a gas inlet interface, a first bending pipe, a first corrugated pipe, a second bending pipe, a second corrugated pipe and a gas outlet interface which are arranged continuously, wherein the axes of the gas inlet interface, the first corrugated pipe and the gas outlet interface are vertically matched in pairs, the axes of the first corrugated pipe and the second corrugated pipe are vertically matched with each other, and the sum of the number of corrugated structures of the first corrugated pipe and the second corrugated pipe is more than or equal to 4. The air inlet interface, the first corrugated pipe and the air outlet interface of the air pipe extend in different dimensions, the overlapping area between the air inlet interface, the first corrugated pipe and the air outlet interface is small, the corrugated structures are conveniently distributed on the first corrugated pipe and the second corrugated pipe, convenience is provided for arranging 4 or more corrugated structures, the vibration reduction effect of the air pipe is ensured, meanwhile, the first corrugated pipe and the second corrugated pipe are vertically matched with each other, vibration reduction in two dimensions is realized, and the vibration reduction effect of the air pipe is further improved.

Description

Gas pipe

Technical Field

The utility model relates to the technical field of air inlet systems of automobile engines, in particular to an air delivery pipe.

Background

With the rapid development of the automobile industry, automobiles have become one of the indispensable vehicles for people to travel. Meanwhile, with the improvement of the comprehensive performance requirements of automobiles, an air inlet system of an automobile engine is upgraded from an original single device for providing clean, dry and sufficient air for the engine to a complex with the function of reducing the noise of the engine.

Based on the noise reduction function requirement, various silencing devices are required to be added into the gas transmission system, the arrangement space of the gas transmission hose is reserved to be more intense, the length of the gas transmission hose is greatly shortened, more than four sections of effective corrugated structures are difficult to arrange, the vibration reduction effect is reduced, and the functional reliability of the gas transmission system is reduced.

Disclosure of Invention

Based on the above, the utility model aims to provide the gas pipe so as to improve the arrangement space of the corrugated structure of the gas pipe, ensure the vibration reduction effect and ensure the reliability of a gas transmission system.

In one aspect, the present utility model provides a gas delivery conduit for an air intake system of an engine, comprising:

an air inlet interface, a first bending pipe, a first corrugated pipe, a second bending pipe, a second corrugated pipe and an air outlet interface which are arranged continuously,

the air inlet interface, the air outlet interface, the first corrugated pipe and the second corrugated pipe are straight pipes;

the first bending pipe and the second bending pipe are bent at right angles;

the axes of the air inlet interface, the first corrugated pipe and the air outlet interface are vertically matched in pairs;

the axes of the first corrugated pipe and the second corrugated pipe are vertically matched with each other;

the sum of the number of the corrugated structures of the first corrugated pipe and the second corrugated pipe is more than or equal to 4.

Optionally, the gas pipe is of an integrated molding structure;

the number of the corrugated structures of the first corrugated pipe is three;

the number of the corrugated structures of the second corrugated pipe is three.

Optionally, the outer diameter of the first bellows is larger than the outer diameter of the second bellows.

Optionally, the gas pipe is made of nitrile rubber and polyvinyl chloride.

Optionally, the gas pipe is a vulcanizing pipe.

Optionally, the first bending tube and the second bending tube further comprise reinforcing ribs.

Optionally, the reinforcing ribs include axial reinforcing ribs and circumferential reinforcing ribs.

Optionally, the wall thickness of the first and second bending tubes is greater than the wall thickness of the first and second bellows.

Optionally, the air inlet interface with the inner wall of air outlet interface all includes the sand grip that the interval set up, the sand grip is followed the circumference extension of gas-supply pipe.

Optionally, the end of the air inlet interface comprises a first protruding structure, and the first protruding structure extends outwards along the extending direction of the air inlet interface;

the end part of the air outlet interface comprises a second epitaxial structure, and the second epitaxial structure comprises concave structures which are arranged at intervals.

The gas transmission pipe comprises a gas inlet interface, a first bending pipe, a first corrugated pipe, a second bending pipe, a second corrugated pipe and a gas outlet interface which are arranged continuously, wherein the first corrugated pipe and the second corrugated pipe are straight pipes; the axes of the air inlet interface, the first corrugated pipe and the air outlet interface are vertically matched in pairs; the second corrugated pipe is overlapped with the axis of the air outlet interface; the sum of the number of the corrugated structures of the first corrugated pipe and the second corrugated pipe is more than or equal to 4. According to the air pipe, the air inlet interface, the first corrugated pipe and the air outlet interface are vertically matched in pairs, so that the air inlet interface, the first corrugated pipe and the air outlet interface extend in different dimensions, the overlapping between the air inlet interface and the air outlet interface is reduced, space is provided for the sectional arrangement of the corrugated structures, 4 or more corrugated structures are arranged under the limited arrangement space, the vibration reduction effect of the air pipe is guaranteed, the first corrugated pipe and the second corrugated pipe are vertically matched with each other, the corrugated structures are respectively arranged in the two dimensions, two-dimensional vibration reduction is realized, and the vibration reduction effect of the air pipe is further improved.

Further, the gas pipe is of an integrated forming structure, the requirements of connection interfaces among the parts are reduced, the occupation of the connection interfaces on arrangement space is reduced, the effective length of the straight pipe part is improved, 6 corrugated structures can be integrally arranged, and the vibration reduction performance of the gas pipe is further improved.

Drawings

FIG. 1 is a schematic perspective view of a gas pipe according to an embodiment of the present utility model;

FIG. 2 is a schematic plan view of a gas delivery pipe according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a portion of a gas delivery conduit according to an embodiment of the present utility model.

Description of main reference numerals:

air inlet interface	11	First bending tube	21
				First corrugated pipe	31	Second bending tube	22
Second corrugated pipe	32	Air outlet interface	12
				Axial reinforcing rib	101	Circumferential reinforcing rib	102
Raised strips	103	First bump structure	104
				Second epitaxial structure	121	Concave structure	122

The utility model will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a schematic perspective view of a gas pipe according to an embodiment of the utility model is shown.

In the gas delivery pipe of the present embodiment, the gas delivery port 11, the first bending pipe 21, the first bellows 31, the second bending pipe 22, the second bellows 32, and the gas outlet port 12 are provided in series.

The first bending tube 21 and the second bending tube 22 are bent once, the first corrugated tube 31 and the second corrugated tube 32 are straight tubes, the axes of the air inlet interface 11, the first corrugated tube 31 and the air outlet interface 12 are vertically matched in pairs (in the utility model, specific parameters close to the vertical can be adjusted according to practical specific available space adaptability, the matching range is generally 85-95 degrees), the two bending tubes respectively extend in the three-dimensional direction, the overlapping between the parts can be reduced, the arrangement of the corrugated structures of the first corrugated tube 31 and the second corrugated tube 32 is convenient, so that four or more corrugated structures can be arranged, and the vibration reduction capability of the air conveying tube is ensured. And the axes of the first corrugated pipe 31 and the second corrugated pipe 32 are vertically matched with each other, and the corrugated structures are distributed in two dimensions, so that two-dimensional vibration reduction is realized, and the vibration reduction capability of the gas pipe is further improved.

The gas pipe is integrally formed, under the condition that the compactness of each part of the gas pipe is high, the occupation of the layout space of the gas pipe by the connecting part can be reduced, the effective length of the first corrugated pipe 31 between the first bending pipe 21 and the second bending pipe 22 and the effective length of the second corrugated pipe 32 between the second bending pipe 22 and the gas outlet port 12 are increased, the layout space of the corrugated structure is further improved, the number of the corrugated structures of the first corrugated pipe 31 is conveniently arranged to be three, the number of the corrugated structures of the second corrugated pipe is arranged to be three, more corrugated structures are arranged, and the vibration reduction effect can be further improved.

Further, the outer diameter of the first corrugated pipe 31 is larger than that of the second corrugated pipe 32, so that the larger space at the air inlet interface 11 is fully utilized, the size of the corrugated pipe close to the air inlet interface 11 is increased, and the vibration reduction effect of the air pipe can be further improved.

Further, the gas pipe is a nitrile rubber polyvinyl chloride (NBR+PVC) pipe.

Further, the air pipe is a vulcanized pipe, has strong elasticity and large capability of resisting external force deformation, and can further improve the integral vibration reduction effect of the air pipe.

Further, the first bending tube 21 and the second bending tube 22 further comprise reinforcing ribs, so that the structural strength of the bending tube can be improved, and the structural reliability of the gas transmission tube can be improved. Wherein, the strengthening rib includes axial strengthening rib 101 and circumference strengthening rib 102, vertically and horizontally distributes, can further increase the structural strength of buckling pipe.

Further, the wall thickness of the first bending tube 21 and the second bending tube 22 is larger than that of the first corrugated tube 31 and the second corrugated tube 32, so that the structural strength of the bending tubes and the elastic vibration reduction effect of the corrugated tubes can be considered.

The first bending tube 21 is also provided with the ear plate 106, is used for fixing the first bending tube 21 at the corresponding position of the vehicle body, is of an integrated forming structure, is fixed through three points of the air inlet interface 11, the air outlet interface 12 and the ear plate 106, is high in fixing reliability, and does not influence the arrangement of the corrugated tube. And the setting position is close, wherein, utilize the great space of the region that is close to the automobile body outside, arrange otic placode 106 to and suitably improve the size of first bellows 31, further improved overall structure's reliability, and improved the gas-supply pipe to the utilization ratio of the disposable space of setting position.

FIG. 2 is a schematic plan view of a gas delivery pipe according to an embodiment of the present utility model.

With further reference to fig. 2, the end of the air inlet interface 11 further comprises a first protruding structure 104, which first protruding structure 104 extends outwards in the direction of extension of the air inlet interface 11; the end of the air outlet 12 comprises a second epitaxial structure 121, and the second epitaxial structure 121 comprises concave structures 122 which are arranged at intervals. The first raised structures 104 and the recessed structures 122 may serve as positioning indicia for assembly with a hand piece.

FIG. 3 is a schematic cross-sectional view of a portion of a gas delivery conduit according to an embodiment of the present utility model.

With further reference to fig. 3, in a specific implementation, the air pipe is made of nitrile rubber and polyvinyl chloride, and is integrally formed through a vulcanization process, the total length of the pipe axis of the formed air pipe is 249mm, the standard wall thickness is 5mm, the corrugated parts are arranged in a segmented manner, 6 sections of corrugated structures are respectively arranged with the first corrugated pipe 31 and the second corrugated pipe 32 in a 3+3 mode, the pipe wall thicknesses of the corrugated pipe parts are 3mm, and the distances d1 of the corrugated structures are 12mm.

The outer diameter of the corrugated structure of the first corrugated pipe 31 near the air inlet joint 11 is 96 mm, the outer diameter of the corrugated structure of the second corrugated pipe 32 near the air outlet joint is 90 mm, and the gap d2 at the bending position of the corrugated structure is 5mm at minimum.

The first bump structure 104 extends 7 mm in length and 11.34 mm in width; the width of the two recessed features 122 is 3.58 millimeters.

Further, the inner walls of the air inlet interface 11 and the air outlet interface 12 respectively comprise convex strips 103 arranged at intervals, the convex strips 103 extend along the circumferential direction of the pipeline, the friction force between the air inlet interface 11 and the air outlet interface 12 and corresponding opponent pieces can be increased, the connection reliability with the opponent pieces is improved, in the embodiment, the air inlet interface 11 and the air outlet interface 12 respectively comprise two convex strips 103, and each convex strip 103 extends along the circumferential direction of the pipeline and is closed into a circular shape.

In one embodiment, the distance d3 between two adjacent ribs 103 is 3mm, and the height of the ribs 103 is 0.25 mm.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing examples illustrate only a few specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A gas delivery pipe for an air intake system of an engine, comprising:

an air inlet interface, a first bending pipe, a first corrugated pipe, a second bending pipe, a second corrugated pipe and an air outlet interface which are arranged continuously,

the air inlet interface, the air outlet interface, the first corrugated pipe and the second corrugated pipe are straight pipes;

the first bending tube and the second bending tube are bent once;

the axes of the air inlet interface, the first corrugated pipe and the air outlet interface are vertically matched in pairs;

the axes of the first corrugated pipe and the second corrugated pipe are vertically matched with each other;

the sum of the number of the corrugated structures of the first corrugated pipe and the second corrugated pipe is more than or equal to 4.

2. A gas delivery tube as set forth in claim 1, wherein,

the gas pipe is of an integrated forming structure;

the number of the corrugated structures of the first corrugated pipe is three;

the number of the corrugated structures of the second corrugated pipe is three.

3. A gas delivery tube as defined in claim 1, wherein an outer diameter of the first bellows is greater than an outer diameter of the second bellows.

4. A gas delivery tube as set forth in claim 1, wherein said gas delivery tube is a nitrile rubber polyvinyl chloride material.

5. A gas delivery conduit according to claim 1 or 4, wherein the gas delivery conduit is a vulcanised conduit.

6. A gas delivery tube as set forth in claim 1, wherein said first bend tube and said second bend tube further include reinforcing ribs thereon.

7. A gas delivery tube as defined in claim 6, wherein the ribs include axial ribs and circumferential ribs.

8. A gas delivery tube as defined in claim 1, wherein the first and second bend tubes have wall thicknesses that are greater than wall thicknesses of the first and second bellows.

9. The gas delivery tube of claim 1, wherein the inner walls of the inlet and outlet ports each include spaced ribs extending circumferentially of the gas delivery tube.

10. A gas delivery tube as set forth in claim 1, wherein,

the end part of the air inlet interface comprises a first protruding structure, and the first protruding structure extends outwards along the extending direction of the air inlet interface;

the end part of the air outlet interface comprises a second epitaxial structure, and the second epitaxial structure comprises concave structures which are arranged at intervals.