Novel multifunctional air inlet pipe

Abstract

The utility model provides a novel multifunctional air inlet pipe which comprises a rough filtration section pipe body and a silencing section pipe body which are communicated with each other, a cyclone blade fan is arranged at the front section in the rough filtration section pipe body, a dust collection groove is formed in the rear section of the rough filtration section pipe body, and a cyclone channel is formed in the rough filtration section pipe body and located between the cyclone blade fan and the dust collection groove. The dust collection groove is of an annular structure, the opening of the dust collection groove faces the cyclone channel, the outer ring side wall in the dust collection groove is formed on the inner wall of the rough filtration section pipe body, and the inner ring of the dust collection groove body is of a through hole structure and serves as a transition through hole for communicating the rough filtration section pipe body with the silencing section pipe body; by directly communicating the rough filtration section pipe body with the silencing section pipe body, a structural form combining a rough filtration function and a silencing function is formed, the structure is simple, production and processing are convenient, and the occupied mounting space is small.

Description

Technical Field

[0001] The utility model relates to the technical field of commercial vehicle engine air intake systems, in particular to a novel multifunctional air intake pipe. Background Art

[0002] The existing commercial vehicle air intake system usually includes an air intake pipe, an air filter and an air outlet pipe. During the NVH measurement and evaluation of the entire commercial vehicle, it was found that the energy value at the air intake pipe port of the air intake system was unqualified, affecting the NVH requirements of the entire vehicle. Therefore, it is necessary to add a silencer structure in the air intake pipe to reduce noise.

[0003] Publication number CN214616820U discloses a multifunctional air intake structure, including a pre-filter module, a honeycomb filter element and a silencer cavity, so as to filter the air in the air intake pipe and then silence and reduce the noise of the air; however, its structure is relatively complex and is not easy to produce and set in the engine compartment. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a novel multifunctional air intake pipe, the purpose of which is to simplify the structure of the multifunctional air intake pipe.

[0005] A novel multifunctional air intake pipe comprises a coarse filter section pipe body and a muffler section pipe body which are interconnected, a cyclone blade fan is arranged at the front section inside the coarse filter section pipe body, a dust collecting groove is arranged at the rear section inside the coarse filter section pipe body, a cyclone channel is formed inside the coarse filter section pipe body and between the cyclone blade fan and the dust collecting groove, the dust collecting groove is an annular structure and its mouth faces the cyclone channel, the outer ring side wall inside the dust collecting groove is formed on the inner wall of the coarse filter section pipe body, the inner ring of the dust collecting groove body is a through hole structure and serves as a transition through hole connecting the coarse filter section pipe body and the muffler section pipe body.

[0006] Furthermore, the coarse filter section pipe body is a linear cylindrical structure, and the cyclone blades are clamped and supported at the front end port of the coarse filter section pipe body.

[0007] Further, the cyclone blade fan includes a sleeve and blades, the blades are fixedly connected in the sleeve, the sleeve is sleeved in the coarse filter section tube body, and the outer wall of the sleeve is in contact with the inner wall of the coarse filter section tube body.

[0008] Furthermore, the pipe body of the muffler section is an arc-shaped cylindrical structure, and grooves are distributed on the inner wall of the pipe body of the muffler section, and the grooves play a muffler role.

[0009] Further, the groove is a circular sink.

[0010] Further, the muffler section pipe body includes an upper shell and a lower shell that are butt-jointed up and down, the front end ends of the upper shell and the lower shell are overlapped on the rear end end of the coarse filter section pipe body and are sealed and fixedly connected thereto, and the upper shell and the lower shell are butt-jointed and fixedly connected.

[0011] Furthermore, the upper shell and the lower shell are both made of PET material.

[0012] Further, the rear end port of the muffler section pipe body is fixedly sleeved on the front end head of the connecting section pipe body, and the rear end heads of the upper shell body and the lower shell body are overlapped on the front end head of the connecting section pipe body and are sealed and fixedly connected therewith.

[0013] Furthermore, a dust discharge port connected with the bottom of the dust collecting tank is opened on the side wall of the coarse filter section pipe body, and a dust discharge valve is fixedly installed on the dust discharge port.

[0014] Furthermore, the dust exhaust valve is a rubber dust exhaust bag, a containing groove is arranged in the rubber dust exhaust bag, the bottom of the containing groove is open and is provided with two long strip dust exhaust lips.

[0015] The beneficial effects of the utility model are as follows: by directly connecting the coarse filter section pipe body and the silencer section pipe body, a structural form combining the coarse filter function and the silencer function is formed, the structure is simple, production and processing are convenient, and the installation space occupied is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model. DETAILED DESCRIPTION

[0018] The utility model is described in detail below in conjunction with the accompanying drawings. The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be interpreted as limiting the utility model. The directional terms such as left, middle, right, top, and bottom in the embodiments of the utility model are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0019] A new multifunctional air intake pipe, combined with Figure 1 and Figure 2As shown, it includes a coarse filter section pipe body 2 and a muffler section pipe body 4 which are interconnected, a cyclone blade 1 is arranged at the front section of the coarse filter section pipe body 2, a dust collecting groove 22 is arranged at the rear section of the coarse filter section pipe body 2, and a cyclone channel 21 is formed in the coarse filter section pipe body 2 and between the cyclone blade 1 and the dust collecting groove 22. The dust collecting groove 22 is an annular structure and its mouth faces the cyclone channel 21. The outer ring side wall of the dust collecting groove 22 is formed on the inner wall of the coarse filter section pipe body 2. The inner ring of the dust collecting groove 22 is a through hole structure and serves as a transition through hole 221 connecting the coarse filter section pipe body 2 and the muffler section pipe body 4; the coarse filter section pipe body 2 is a linear cylindrical structure, and the cyclone blade 1 is clamped and supported at the front end port of the coarse filter section pipe body 2; compared with the cyclone blade 1 being located in the middle part of the coarse filter section pipe body 2, the cyclone blade 1 is located in The front end port of the coarse filter section pipe body 2 improves the coarse filtration efficiency; the cyclone blade 1 includes a sleeve 12 and a blade 11, the blade 11 is fixedly connected in the sleeve 12, the sleeve 12 is sleeved in the coarse filter section pipe body 2, the outer wall of the sleeve 12 fits with the inner wall of the coarse filter section pipe body 2, and under the support of the sleeve 12, the structural strength of the coarse filter section pipe body 2 at the pipe mouth is improved. When the coarse filter section pipe body 2 is assembled with the wading hose, the pipe mouth deformation caused by excessive clamping torque and insufficient pipe mouth strength is avoided; the silencer section pipe body 4 is an arc-shaped cylindrical structure, which is convenient for noise reduction and space utilization. Grooves 42 are distributed on the inner wall of the silencer section pipe body 4, and the grooves 42 have a sound-absorbing effect; the grooves 42 are circular sinks, which ensure noise reduction while facilitating the arrangement of the grooves 42 on the inner wall of the arc-shaped cylindrical structure.

[0020] Among them, the silencer section pipe body 4 includes an upper shell 41 and a lower shell 42 which are butt-jointed up and down, and the upper shell 41 and the lower shell 42 are both made of PET, and the front end ends of the upper shell 41 and the lower shell 42 are overlapped on the rear end end of the coarse filter section pipe body 2 and are sealed and fixedly connected thereto, preferably by welding; the upper shell 41 and the lower shell 42 are butt-jointed and fixedly connected, preferably by welding; to facilitate the connection of the upper shell 41 and the lower shell 42 with subsequent pipelines, the rear end port of the silencer section pipe body 4 is fixedly sleeved on the front end end of the connecting section pipe body 5, specifically, the rear end ends of the upper shell 41 and the lower shell 42 are overlapped on the front end end of the connecting section pipe body 5 and are sealed and fixedly connected thereto, preferably by welding; a fixing bracket 6 is fixedly connected to the outer wall of the connecting section pipe body 5 and the outer wall of the coarse filter section pipe body 2.

[0021] In addition, a dust discharge port 23 connected to the bottom of the dust collecting groove 22 is opened on the side wall of the coarse filter section tube body 2, and a dust discharge valve 3 is fixedly installed on the dust discharge port 23; the dust discharge valve 3 is a rubber dust discharge bag, and a accommodating groove 31 is provided in the rubber dust discharge bag, and the bottom of the accommodating groove 31 is open and provided with two long dust discharge lips 33; in order to prevent the rubber dust discharge bag from being sucked flat when negative pressure is applied, two limit blocks 32 are integrated on the opposite side walls of the accommodating groove 31, and a gap is left between the two limit blocks 32. Under the limiting action of the limit blocks 32, the rubber dust discharge bag is prevented from being sucked flat.

[0022] When the internal combustion engine is working, the mixture of air, dust and sand in the coarse filter section pipe body 2 changes from linear motion to rotational motion after passing through the cyclone blade fan 1. Due to the large mass of dust and sand, the dust and sand are allowed to enter the dust collecting tank 22 along the pipe wall of the coarse filter section pipe body 2 by utilizing the inertial separation principle, and are discharged into the dust exhaust valve 3 through the dust exhaust port 23, thereby achieving coarse filtration of the air; after the coarsely filtered air enters the silencer section pipe body 4 through the transition through hole 221, the air is reduced in noise due to the silencing effect of the groove 42 on the inner wall of the silencer section pipe body 4 and the PET material, thereby meeting the NVH requirements of the entire vehicle.

[0023] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A new multifunctional air intake pipe, characterized in that: It includes a coarse filter section pipe body and a silencer section pipe body which are interconnected. A cyclone blade fan is arranged at the front section inside the coarse filter section pipe body, and a dust collecting groove is arranged at the rear section inside the coarse filter section pipe body. A cyclone channel is formed inside the coarse filter section pipe body and between the cyclone blade fan and the dust collecting groove. The dust collecting groove is an annular structure and its mouth faces the cyclone channel. The outer ring side wall of the dust collecting groove is formed on the inner wall of the coarse filter section pipe body. The inner ring of the dust collecting groove body is a through hole structure and serves as a transition through hole connecting the coarse filter section pipe body and the silencer section pipe body.

2. The novel multifunctional air intake pipe according to claim 1 is characterized in that: The coarse filter section pipe body is a linear cylindrical structure, and the cyclone blades are clamped and supported at the front end port of the coarse filter section pipe body.

3. The novel multifunctional air intake pipe according to claim 2 is characterized in that: The cyclone blade fan comprises a sleeve and blades, the blades are fixedly connected in the sleeve, the sleeve is sleeved in the coarse filter section tube body, and the outer wall of the sleeve is in contact with the inner wall of the coarse filter section tube body.

4. The novel multifunctional air intake pipe according to claim 1 or 2, characterized in that: The pipe body of the silencer section is an arc-shaped cylindrical structure, and grooves are distributed on the inner wall of the pipe body of the silencer section, and the grooves play a role in silencer.

5. The novel multifunctional air intake pipe according to claim 4 is characterized in that: The groove is a circular sink.

6. The novel multifunctional air intake pipe according to claim 4 is characterized in that: The muffler section pipe body includes an upper shell and a lower shell that are butt-jointed. The front ends of the upper shell and the lower shell are overlapped on the rear end of the coarse filter section pipe body and are sealed and fixedly connected thereto. The upper shell and the lower shell are butt-jointed and fixedly connected.

7. The novel multifunctional air intake pipe according to claim 6 is characterized in that: The upper shell and the lower shell are both made of PET.

8. The novel multifunctional air intake pipe according to claim 6 is characterized in that: The rear end port of the muffler section pipe body is fixedly sleeved on the front end head of the connecting section pipe body, and the rear end heads of the upper shell body and the lower shell body are overlapped on the front end head of the connecting section pipe body and are sealed and fixedly connected therewith.

9. The novel multifunctional air intake pipe according to claim 1 is characterized in that: A dust discharge port connected with the bottom of the dust collecting tank is arranged on the side wall of the coarse filter section pipe body, and a dust discharge valve is fixedly installed on the dust discharge port.

10. The novel multifunctional air intake pipe according to claim 9 is characterized in that: The dust exhaust valve is a rubber dust exhaust bag, in which a containing groove is arranged, and the bottom of the containing groove is open and provided with two long strip dust exhaust lips.

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