Pipeline connecting structure of automobile air inlet system

Abstract

The embodiment of the utility model provides a pipeline connecting structure of an automobile air inlet system. The pipeline connecting structure comprises a hard connecting pipe, a corrugated pipe and a connecting support used for connecting the hard connecting pipe and the corrugated pipe. The corrugated pipe is made of rubber, the hard connecting pipe and the connecting support are made of thermoplastic plastic, the weight can be effectively reduced, mass production can be achieved through a mold, the product consistency is excellent, and the raw material cost can be remarkably reduced. The hard connecting pipe and the corrugated pipe are locked and fixed through the connecting support instead of a metal clamp, a torsion setting tool is not needed during installation, installation is simple, and the process cost can be effectively reduced; and a limiting structure is arranged between the hard connecting pipe and the connecting bracket, so that the connecting bracket can be limited, and loosening is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessories, and specifically relates to a pipeline connecting structure of automobile air intake system. BACKGROUND

[0002] The automobile air intake system is an important component of the engine, and its main role is to provide clean, dry, sufficient and stable air for the engine to meet the needs of the engine under different working conditions. The design of the air intake system directly affects the power output, noise quality and ride comfort of the vehicle.

[0003] The pipeline of the existing automobile air intake system usually adopts a rubber corrugated pipe and a thermoplastic plastic pipe, and the corrugated pipe and the plastic pipe are connected through a metal clamp. When the automobile is used or moved, the metal clamp is easily affected by vibration, causing the connection to loosen, which may cause safety hazards and affect the driving comfort of the air intake system. In addition, the metal clamp must be tightened with a special tool during installation, which increases the production steps and reduces the production efficiency. SUMMARY

[0004] Therefore, the embodiments of the utility model provide a pipeline connecting structure of automobile air intake system, which has the advantages of convenient installation, low cost, reliable connection and difficult to loosen.

[0005] The utility model discloses a pipeline connecting structure of automobile air intake system, which comprises a hard connecting pipe, a corrugated pipe and a connecting support for connecting the hard connecting pipe and the corrugated pipe.

[0006] The connecting support comprises two rotating arms oppositely arranged on both sides of the hard connecting pipe and a connecting main body connected between the two rotating arms. One end of the rotating arm away from the connecting main body is rotationally connected with the hard connecting pipe, so that the connecting support can reciprocatingly rotate relative to the hard connecting pipe to switch between an initial position and a final position. When the connecting support is in the initial position, the connecting main body is located beside the clamping position of the hard connecting pipe. When the connecting support is in the final position, the connecting main body covers the clamping position of the hard connecting pipe and the corrugated pipe, locking and fixing the clamping position.

[0007] Optionally, a buckle and a clamping hole are oppositely arranged on the outer wall of the hard connecting pipe port, and the end of the corrugated pipe is correspondingly provided with a clamping groove for embedding the buckle and a clamping block capable of being clamped into the clamping hole.

[0008] Optionally, the port of the hard connecting pipe is provided with two slots, and the two slots are oppositely arranged on the hard connecting pipe between the buckle and the clamping hole.

[0009] Optionally, the outer wall of the port of the hard connecting pipe is further provided with a first limiting boss and a second limiting boss, the first limiting boss is arranged on the side of the buckle away from the corrugated pipe, and the second limiting boss is arranged on the side of the first limiting boss away from the buckle; the connecting body is provided with a limiting block on the side away from the corrugated pipe, when the connecting support is in the initial position, the limiting block is clamped between the first limiting boss and the second limiting boss; when the connecting support is in the final position, the limiting block is clamped between the buckle and the first limiting boss.

[0010] Optionally, the outer wall of the port of the hard connecting pipe is further provided with a first limiting boss and a second limiting boss, the first limiting boss is arranged on the side of the buckle away from the corrugated pipe, and the second limiting boss is arranged on the side of the first limiting boss away from the buckle; the connecting body is provided with a limiting block on the side away from the corrugated pipe, when the connecting support is in the initial position, the limiting block is clamped between the first limiting boss and the second limiting boss; when the connecting support is in the final position, the limiting block is clamped between the buckle and the first limiting boss.

[0011] Optionally, the inner wall of the rotating slot is formed with an arc surface, a first limiting surface smoothly connected with the arc surface, and a second limiting surface forming an included angle with the first limiting surface, and a guide protrusion is formed between the second limiting surface and the arc surface; the outer wall of the rotating shaft protrudes to one side to form a limiting portion, when the connecting support is in the initial position, the limiting portion abuts against the first limiting surface, and when the connecting support is in the final position, the limiting portion abuts against the second limiting surface.

[0012] Optionally, the hard connecting pipe and the connecting support are made of thermoplastic plastic material, and the corrugated pipe is made of rubber material.

[0013] The embodiments of the utility model have the following beneficial effects:

[0014] 1. The connecting support is used to replace the metal buckle, the connecting support is rotatably sleeved on the port of the hard connecting pipe, when the connecting support is rotated to the final position, the connecting body of the connecting support can cover the clamping position of the hard connecting pipe and the corrugated pipe, the clamping position is locked and fixed, when the connecting support is in the initial position, the connecting support is not locked and fixed, and the connecting support is not locked and fixed.

[0015] 2. The hard connecting pipe and the connecting support are made of thermoplastic plastic material, the weight can be effectively reduced, the products can be mass-produced through a mold, the product consistency is excellent, and the raw material cost can be significantly reduced. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0017] Figure 1 The exploded state schematic view of the embodiment of the present application;

[0018] Figure 2 The connection state schematic view of the embodiment of the present application;

[0019] Figure 3 The A-A sectional view of the embodiment of the present application;

[0020] Figure 4 The B-B sectional view of the embodiment of the present application when in the initial position;

[0021] Figure 5 The C-C sectional view of the embodiment of the present application when in the initial position;

[0022] Figure 6 The B-B sectional view of the embodiment of the present application when in the final position;

[0023] Figure 7 The C-C sectional view of the embodiment of the present application when in the final position;

[0024] The numbers in the figure represent:

[0025] 1, hard connection pipe; 11, buckle; 12, clamping hole; 13, insertion slot; 14, rotating shaft; 15, limiting part; 16, first limiting boss; 17, second limiting boss;

[0026] 2, corrugated pipe; 21, clamping groove; 22, clamping block;

[0027] 3, connecting support; 31, rotating arm; 32, connecting main body; 33, rotating groove; 34, arc surface; 35, first limiting surface; 36, second limiting surface; 37, guide protrusion; 38, limiting block. DETAILED DESCRIPTION

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more features.

[0029] Please see Figures 1-7 As shown, an embodiment of this utility model provides a pipeline connection structure for an automotive intake system, including a rigid connecting pipe 1, a corrugated pipe 2, and a connecting bracket 3 for connecting the rigid connecting pipe 1 and the corrugated pipe 2. The rigid connecting pipe 1 and the connecting bracket 3 can both be made of thermoplastic plastic, and the corrugated pipe 2 can be made of rubber.

[0030] One end of the corrugated pipe 2 is inserted into the port of the rigid connecting pipe 1 and engages with it. Specifically, in this embodiment of the invention, a buckle 11 and a locking hole 12 are provided opposite to each other on the outer wall of the port of the rigid connecting pipe 1, and a slot 21 and a locking block 22 are provided correspondingly on the end of the corrugated pipe 2. When the corrugated pipe 2 is inserted into the rigid connecting pipe 1, the buckle 11 can be inserted into the slot 21, and the locking block 22 can be engaged into the locking hole 12, completing the pre-assembly of the corrugated pipe 2 and the rigid connecting pipe 1. Furthermore, in order to facilitate the connection between the rigid connecting pipe 1 and the corrugated pipe 2, two slots 13 can be opened at the port of the rigid connecting pipe 1, and the two slots 13 are arranged opposite to each other on the rigid connecting pipe 1 between the buckle 11 and the locking hole 12.

[0031] The connecting bracket 3 is movably fitted onto the port of the rigid connecting pipe 1 to lock and fix the rigid connecting pipe 1 and the bellows 2. The connecting bracket 3 includes two rotating arms 31 arranged opposite each other on both sides of the rigid connecting pipe 1 and a connecting body 32 connected between the two rotating arms 31. The end of the rotating arm 31 away from the connecting body 32 is rotatably connected to the rigid connecting pipe 1, so that the connecting bracket 3 can reciprocate relative to the rigid connecting pipe 1 to switch between an initial position and a final position. Specifically, each of the two rotating arms 31 has a rotating groove 33 on the side facing the rigid connecting pipe 1, and a rotating shaft 14 adapted to the rotating groove 33 is correspondingly provided on the outer wall of the rigid connecting pipe 1. The rotating groove 33 is rotatably fitted onto the corresponding rotating shaft 14.

[0032] Furthermore, the inner wall of the rotating groove 33 is formed with an arc-shaped surface 34, a first limiting surface 35 that smoothly transitions to the arc-shaped surface 34, and a second limiting surface 36 that forms an angle with the first limiting surface 35. A guide protrusion 37 is formed between the second limiting surface 36 and the arc-shaped surface 34. The outer wall of the rotating shaft 14 protrudes to one side to form a limiting part 15. When the connecting bracket 3 is in the initial position, the limiting part 15 abuts against the first limiting surface 35; when the connecting bracket 3 is in the final position, the limiting part 15 abuts against the second limiting surface 36. By limiting the rotation angle of the connecting bracket 3 through the first limiting surface 35 and the second limiting surface 36, the excessive rotation of the connecting bracket 3 can be effectively avoided to prevent structural damage.

[0033] When the connecting bracket 3 is in its initial position, the connecting body 32 is located beside the snap-fit ​​point (i.e., snap 11) of the rigid connecting pipe 1. At this time, the pre-assembly of the corrugated pipe 2 and the rigid connecting pipe 1 can be performed. After the corrugated pipe 2 and the rigid connecting pipe 1 are snapped and fixed, the connecting bracket 3 is pushed and rotated to its final position. At this time, the connecting body 32 of the connecting bracket 3 can cover the snap-fit ​​point of the rigid connecting pipe 1 and the corrugated pipe 2, locking and fixing the snap-fit ​​point (i.e., snap 11 and slot 21) to prevent loosening.

[0034] Furthermore, in this embodiment of the invention, a first limiting protrusion 16 and a second limiting protrusion 17 are provided on the outer wall of the port of the rigid connecting pipe 1. The first limiting protrusion 16 is spaced apart on the side of the buckle 11 away from the corrugated pipe 2, and the second limiting protrusion 17 is spaced apart on the side of the first limiting protrusion 16 away from the buckle 11. A limiting block 38 is provided on the side of the connecting body 32 away from the corrugated pipe 2. When the connecting bracket 3 is in the initial position, the limiting block 38 is precisely engaged between the first limiting protrusion 16 and the second limiting protrusion 17. When the connecting bracket 3 is in the final position, the limiting block 38 can again engage between the buckle 11 and the first limiting protrusion 16, thereby limiting the connecting bracket 3 and effectively preventing the connecting bracket 3 from loosening.

[0035] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this utility model. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pipe connection structure for an automotive intake system, characterized in that: It includes a rigid connecting pipe, a corrugated pipe, and a connecting bracket for connecting the rigid connecting pipe and the corrugated pipe; one end of the corrugated pipe is inserted into the port of the rigid connecting pipe and engages with the rigid connecting pipe; the connecting bracket is movably sleeved on the port of the rigid connecting pipe for locking and fixing the rigid connecting pipe and the corrugated pipe. The connecting bracket includes two rotating arms disposed opposite to each other on both sides of the rigid connecting pipe and a connecting body connected between the two rotating arms; one end of each rotating arm away from the connecting body is rotatably connected to the rigid connecting pipe, so that the connecting bracket can reciprocate relative to the rigid connecting pipe to switch between an initial position and a final position; when the connecting bracket is in the initial position, the connecting body is located beside the snap-fit ​​joint of the rigid connecting pipe; when the connecting bracket is in the final position, the connecting body covers the snap-fit ​​joint of the rigid connecting pipe and the corrugated pipe, locking and fixing the snap-fit ​​joint.

2. The pipeline connection structure of an automotive intake system according to claim 1, characterized in that: The outer wall of the rigid connection pipe port is provided with a buckle and a locking hole, and the end of the corrugated pipe is provided with a slot for the buckle to be inserted and a locking block that can be locked into the locking hole.

3. The pipeline connection structure of an automotive intake system according to claim 2, characterized in that: The rigid connector has two slots at its port, and the two slots are positioned opposite each other on the rigid connector between the buckle and the locking hole.

4. The pipeline connection structure of an automobile intake system according to claim 2, characterized in that: The outer wall of the rigid connector port is also provided with a first limiting protrusion and a second limiting protrusion. The first limiting protrusion is spaced apart on the side of the buckle away from the corrugated pipe, and the second limiting protrusion is spaced apart on the side of the first limiting protrusion away from the buckle. A limiting block is provided on the side of the connecting body away from the corrugated pipe. When the connecting bracket is in the initial position, the limiting block is engaged between the first limiting protrusion and the second limiting protrusion. When the connecting bracket is in the final position, the limiting block is engaged between the buckle and the first limiting protrusion.

5. The pipeline connection structure of an automotive intake system according to claim 1, characterized in that: Both of the rotating arms have a rotating groove on the side facing the rigid connecting pipe. The outer wall of the rigid connecting pipe is provided with a rotating shaft that is adapted to the rotating groove. The rotating groove is rotatably sleeved on the corresponding rotating shaft.

6. The pipeline connection structure of an automobile intake system according to claim 5, characterized in that: The inner wall of the rotating groove has an arc-shaped surface, a first limiting surface that smoothly transitions to the arc-shaped surface, and a second limiting surface that forms an angle with the first limiting surface. A guide protrusion is formed between the second limiting surface and the arc-shaped surface. The outer wall of the rotating shaft protrudes to one side to form a limiting part. When the connecting bracket is in the initial position, the limiting part abuts against the first limiting surface. When the connecting bracket is in the final position, the limiting part abuts against the second limiting surface.

7. The pipeline connection structure of an automotive intake system according to claim 1, characterized in that: Both the rigid connecting pipe and the connecting bracket are made of thermoplastic plastic, while the corrugated pipe is made of rubber.

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