Automobile air filter pipe fitting with noise reduction structure

Abstract

The utility model relates to the technical field of air filter accessories, and discloses an automobile air filter pipe fitting with a noise reduction structure, which comprises a pipe fitting body, a rod body of the pipe fitting body is an inclined irregular rectangle with a plane top end and a plane bottom end, and the bottom end of the pipe fitting body is fixedly connected with a lower connecting pipe. The left side of the front end of the lower connecting pipe is fixedly connected with an air outlet pipe in a penetrating mode, the inner wall of the air outlet pipe is communicated with the inner wall of the lower connecting pipe, the top end of the pipe fitting body is fixedly connected with an air inlet pipe, and a noise reduction groove is formed in the position, close to the left side of the air outlet pipe, of the inner wall of the front end of the lower connecting pipe. According to the utility model, by arranging the noise reduction groove, leftward gas entering the lower connecting pipe is blocked, so that the gas inlet resistance can be reduced, further, certain gas inlet noise is reduced, and certain gas inlet smoothness and gas flow convolution are improved; and noise generated by collision between a certain amount of gas and the inner wall of the pipe fitting when the gas is transmitted in the pipe fitting body can be absorbed by arranging the sound absorption folding sleeve, and the noise reduction effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air filter accessories, in particular to an automobile air filter pipe with a noise reduction structure. Background Art

[0002] The automobile air filter intake pipe is a pipe connecting the air filter and the engine. Its main function is to introduce external air into the engine for combustion. The automobile air filter intake pipe is an important component in the engine cylinder assembly system, which directly affects the engine's intake efficiency and power output.

[0003] At present, when the gas on the market enters the engine through the intake pipe, a cyclone will be generated at the joint, thereby causing a certain amount of noise. In this regard, in order to solve this technical problem, the present application proposes an automobile air filter pipe with a noise reduction structure. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an automobile air filter pipe with a noise reduction structure, which can reduce intake contrast and improve intake smoothness.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A car air filter pipe with a noise reduction structure comprises a pipe body, wherein the rod body of the pipe body is an oblique irregular rectangle with the top and bottom ends being planes, the bottom end of the pipe body is fixedly connected to a lower connecting pipe, the left side of the front end of the lower connecting pipe is penetrated and fixedly connected to an air outlet pipe, the inner wall of the air outlet pipe and the inner wall of the lower connecting pipe are interconnected, the top end of the pipe body is fixedly connected to an air inlet pipe, and a noise reduction groove is provided on the inner wall of the front end of the lower connecting pipe near the left side of the air outlet pipe.

[0007] Furthermore, the rear end, top end and bottom end of the noise reduction groove are fixedly connected to the rear end of the inner wall of the lower connecting pipe, the right side of the inner wall of the noise reduction groove is shaped like a semi-cylindrical plate, and the inner wall of the lower connecting pipe corresponding to the left side of the noise reduction groove is a sealed space.

[0008] Furthermore, docking slots are provided on four sides of the outer diameter of the front end of the air outlet pipe.

[0009] Furthermore, a plurality of sealing protrusions are evenly and fixedly connected to the outer wall of the air outlet pipe near the rear side of the docking slot.

[0010] Furthermore, a plurality of mounting screws are fixedly connected to the outer wall of the front end of the lower connecting pipe, and nuts are threadedly mounted on the outer walls of the mounting screws.

[0011] Furthermore, a plurality of sound-absorbing folded sleeves are provided on the outer wall of the pipe body rod, the top and bottom ends of the sound-absorbing folded sleeves are fixedly connected to elastic rubber rings, and the inner walls of the elastic rubber rings are tightly attached to the outer wall surface of the pipe body.

[0012] Furthermore, the outer wall of the air intake pipe is provided with a plurality of mounting holes, and arc-shaped spacings between adjacent mounting holes are the same.

[0013] Furthermore, a rubber sealing pad is fixedly connected to the outer wall of the air inlet pipe near the bottom end of the mounting hole, and a sealing groove is formed at the top end of the rubber sealing pad.

[0014] The utility model has the following beneficial effects:

[0015] In the utility model, a noise reduction groove is provided to block the gas entering the lower connecting pipe to the left, thereby reducing the intake resistance, thereby reducing the intake noise to a certain extent, improving the intake smoothness and airflow swirl to a certain extent, and providing a sound-absorbing folding sleeve to absorb a certain amount of noise generated by the collision of the gas with the inner wall of the pipe when it is transmitted inside the pipe body, thereby further improving the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a stereoscopic diagram of an automobile air filter pipe with a noise reduction structure proposed by the utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0019] Legend:

[0020] 1. Pipe body; 2. Sound-absorbing folding sleeve; 3. Lower pipe; 4. Mounting screws; 5. Air inlet pipe; 6. Noise reduction groove; 7. Sealing protrusion; 8. Air outlet pipe; 9. Docking slot; 10. Mounting hole; 11. Sealing groove; 12. Rubber sealing pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-3The utility model provides an embodiment: an automobile air filter pipe with a noise reduction structure, comprising a pipe body 1, a rod body of the pipe body 1 is an irregular oblique rectangle with a plane at the top and bottom, a lower pipe 3 is fixedly connected to the bottom end of the pipe body 1, an air outlet pipe 8 is fixedly connected to the left side of the front end of the lower pipe 3, the inner wall of the air outlet pipe 8 and the inner wall of the lower pipe 3 are interconnected, an air inlet pipe 5 is fixedly connected to the top of the pipe body 1, a noise reduction groove 6 is opened on the inner wall of the front end of the lower pipe 3 near the left side of the air outlet pipe 8, the rear end, the top end and the bottom end of the noise reduction groove 6 are fixedly connected to the rear end of the inner wall of the lower pipe 3, the right side of the inner wall of the noise reduction groove 6 is in the shape of a semi-cylindrical plate, and the inner wall of the lower pipe 3 corresponding to the left side of the noise reduction groove 6 is a sealed space.

[0023] Specifically, the rod body of the pipe body 1 is set to be an irregular rectangle with a plane at the top and bottom ends, which can reduce the turbulence and injection noise when the airflow enters, reduce the vibration transmitted to the interior of the vehicle, improve the airflow dynamics in the intake pipe, and improve the efficiency of air entering the engine. The setting of the noise reduction groove 6 will block the gas entering the lower pipe 3 to the left, which can reduce the intake resistance, thereby reducing a certain amount of intake noise, and improving a certain amount of intake smoothness and airflow swirl.

[0024] The four sides of the outer diameter of the front end of the air outlet pipe 8 are provided with docking slots 9, and the outer wall of the air outlet pipe 8 is evenly fixedly connected with a plurality of sealing protrusions 7 near the rear side of the docking slots 9. The outer wall of the front end of the lower connecting pipe 3 is fixedly connected with a plurality of mounting screws 4, and the outer wall of the mounting screws 4 is threadedly installed with nuts.

[0025] Specifically, the sealing protrusion 7 can improve the sealing effect of the connection when the outlet pipe 8 is docked with the engine component to prevent gas leakage, and the mounting screw 4 can be assembled with a nut to install the intake pipe at the engine docking point.

[0026] A plurality of sound-absorbing folded sleeves 2 are sleeved on the outer wall of the rod body of the pipe body 1, and the top and bottom ends of the sound-absorbing folded sleeves 2 are fixedly connected to elastic rubber rings, and the inner walls of the elastic rubber rings are tightly attached to the outer wall surface of the pipe body 1. A plurality of mounting holes 10 are opened on the outer wall of the air intake pipe 5, and the arc-shaped spacings between adjacent mounting holes 10 are the same. A rubber sealing pad 12 is fixedly connected to the outer wall of the air intake pipe 5 near the bottom end of the mounting hole 10, and a sealing groove 11 is opened on the top of the rubber sealing pad 12.

[0027] Specifically, the sound-absorbing folded sleeve 2 is made of rubber material, and the folded inner wall can absorb the noise transmitted from the inner wall of the pipe body 1. The pipe body 1 is installed together with the air filter assembly through multiple installation holes 10 on the intake pipe 5. At the same time, the edge of the docking interface on the air filter assembly is pressed back and tightly fitted with the sealing groove 11 in the rubber sealing pad 12, thereby improving the sealing effect of the docking point.

[0028] Working principle: First, the pipe body 1 is installed together with the air filter assembly through multiple mounting holes 10 on the intake pipe 5. At the same time, the edge of the docking interface on the air filter assembly is pressed back and tightly fitted with the sealing groove 11 in the rubber sealing pad 12, thereby improving the sealing effect of the docking point and preventing gas leakage from affecting the transmission efficiency. After the gas is transmitted into the intake pipe 5 through the air filter assembly, it is transmitted to the lower connecting pipe 3 along the inner wall of the pipe body 1. During the process, the noise generated by the gas hitting the inner wall of the pipe body 1 will be absorbed by the external sound-absorbing folding sleeve 2 to reduce the noise of the gas transmission process. Then the gas is discharged from the inner wall of the lower connecting pipe 3 through the outlet pipe 8 into the interior of the automobile engine. The setting of the noise reduction groove 6 will block the gas entering the lower connecting pipe 3 to the left, which can reduce the intake resistance, thereby reducing a certain amount of intake noise, and improving a certain amount of intake smoothness and airflow swirl.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile air filter pipe with a noise reduction structure, comprising a pipe body (1), characterized in that: The rod body of the pipe body (1) is an irregular rectangular shape with the top and bottom being planes. The bottom end of the pipe body (1) is fixedly connected to a lower connecting pipe (3). An air outlet pipe (8) is fixedly connected to the left side of the front end of the lower connecting pipe (3). The inner wall of the air outlet pipe (8) and the inner wall of the lower connecting pipe (3) are interconnected. The top end of the pipe body (1) is fixedly connected to an air inlet pipe (5). A noise reduction groove (6) is provided on the inner wall of the front end of the lower connecting pipe (3) near the left side of the air outlet pipe (8).

2. The automobile air filter pipe with a noise reduction structure according to claim 1, characterized in that: The rear end, top end and bottom end of the noise reduction groove (6) are fixedly connected to the rear end of the inner wall of the lower connecting pipe (3); the right side of the inner wall of the noise reduction groove (6) is in the shape of a semi-cylindrical plate; the inner wall of the lower connecting pipe (3) corresponding to the left side of the noise reduction groove (6) is a sealed space.

3. The automobile air filter pipe with a noise reduction structure according to claim 1, characterized in that: The four sides of the outer diameter of the front end of the air outlet pipe (8) are provided with docking slots (9).

4. The automobile air filter pipe with a noise reduction structure according to claim 3, characterized in that: A plurality of sealing protrusions (7) are evenly and fixedly connected to the outer wall of the air outlet pipe (8) near the rear side of the docking slot (9).

5. The automobile air filter pipe with a noise reduction structure according to claim 2, characterized in that: A plurality of mounting screws (4) are fixedly connected to the outer wall of the front end of the lower pipe (3), and nuts are threadedly mounted on the outer walls of the mounting screws (4).

6. The automobile air filter pipe with a noise reduction structure according to claim 1, characterized in that: The outer wall of the rod body of the pipe body (1) is provided with a plurality of sound-absorbing folded sleeves (2), the top and bottom ends of the sound-absorbing folded sleeves (2) are fixedly connected to elastic rubber rings, and the inner walls of the elastic rubber rings are tightly attached to the outer wall surface of the pipe body (1).

7. The automobile air filter pipe with a noise reduction structure according to claim 1, characterized in that: The outer wall of the air inlet pipe (5) is provided with a plurality of mounting holes (10), and the arc-shaped spacings between adjacent mounting holes (10) are the same.

8. The automobile air filter pipe with a noise reduction structure according to claim 7, characterized in that: A rubber sealing pad (12) is fixedly connected to the outer wall of the air inlet pipe (5) near the bottom end of the mounting hole (10), and a sealing groove (11) is formed at the top end of the rubber sealing pad (12).

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