Air inlet pipe assembly of heavy truck

Abstract

The invention discloses an air inlet pipe assembly of a heavy truck, which relates to the technical field of air inlet pipes of vehicle engines, and is technically characterized by comprising a dust discharge pipe group, a dust discharge pipe group, a dust discharge pipe group, a dust discharge pipe group and a dust discharge pipe group, and the dust discharge pipe group comprises a first wide pipe, a straight pipe and a second wide pipe; the first sealing plug and the second sealing plug are both arranged in the dust discharging pipe set, the first sealing plug and the second sealing plug are fixedly connected, and a spring is fixedly arranged between the first sealing plug and the second wide pipe; the air suction pipe is fixedly installed in the dust discharging pipe set, a small air pump is fixedly installed in the second wide pipe, and a dust suction part is arranged on the air suction pipe; the rotating ring is rotatably mounted on the circular ring cylinder, a fixing ring is rotatably mounted on the rotating ring, the fixing ring is fixedly connected with the air suction pipe through a connecting pipe, an arc-shaped push plate is rotatably mounted on the rotating ring, an iron ring is slidably arranged in the rotating ring, and a deflection assembly is arranged between the iron ring and the arc-shaped push plate. Dust can be automatically discharged from the discharge port, and air cannot enter the separation cylinder from the dust discharge pipe set.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle engine intake pipes, in particular to a heavy truck intake pipe assembly. Background Art

[0002] In the air intake system of heavy trucks, in order to prevent sand and dust from entering the engine, the air intake system often has a high-position intake pipe and air filter. Its main function is to introduce clean air into the engine's intake duct, ensuring that clean and sufficient air enters the cylinder, so that the engine can have better power and consume less fuel during operation. The size of the intake volume directly determines the amount of air entering the engine cylinder and the size of the intake resistance, affecting the economy and power of the engine.

[0003] At present, some high-position intake pipes are rotatably installed with swirl blades, which use the centrifugal force of the rotation of the swirl blades to remove large particles of dust in the air, and the removed dust enters a rubber storage groove, which is composed of two semi-arc rubber sheets. The driver needs to press the two rubber sheets regularly to discharge the stored dust in the rubber storage groove, which is troublesome to remove the dust. In addition, the rubber storage groove is sealed after the two rubber sheets are merged, and the sealing performance is poor. It is easy for air to enter the high-position intake pipe from the rubber storage groove, so that a large amount of dust is sucked into the air filter, which will shorten the replacement cycle of the air filter. Therefore, in order to solve the above technical problems, the present invention provides a heavy-duty truck intake pipe assembly. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a heavy truck air intake pipe assembly which can automatically discharge dust from a discharge port without air entering the separation cylinder from the dust discharge pipe group.

[0005] To achieve the above object, the present invention provides the following technical solution: a heavy truck intake pipe assembly, comprising an intake pipe and a separation cylinder fixedly mounted on the intake pipe, wherein a shaft is rotatably mounted inside the separation cylinder, a swirl blade is fixedly mounted on the shaft, and a circular cylinder is fixedly connected to the interior of the separation cylinder via a guide platform, and further comprising:

[0006] A dust exhaust pipe group, the dust exhaust pipe group includes a first wide pipe, a straight pipe and a second wide pipe, wherein the top end of the straight pipe is fixedly connected to the bottom end of the first wide pipe, the bottom end of the straight pipe is fixedly connected to the top end of the second wide pipe, and a discharge port is opened on the bottom end of the second wide pipe;

[0007] The first sealing plug and the second sealing plug are both arranged in the dust exhaust pipe group, the first sealing plug and the second sealing plug are fixedly connected, a spring is fixedly arranged between the first sealing plug and the second wide tube, the diameters of the first sealing plug and the second sealing plug are adapted to the inner diameter of the straight tube, the inner diameters of the first wide tube and the second wide tube are both larger than the diameters of the first sealing plug and the second sealing plug, and a protruding rod is fixedly installed on the second sealing plug;

[0008] An air suction pipe is fixedly installed in the dust exhaust pipe group, a small air pump is fixedly installed in the second wide pipe, the air suction end of the small air pump is fixedly connected to the air suction pipe, one end of the air suction pipe passes through the first sealing plug and the second sealing plug and is slidably connected to the first sealing plug and the second sealing plug, and a dust suction part is arranged on the air suction pipe;

[0009] A swivel is rotatably mounted on a circular ring cylinder, the swivel is fixedly connected to a shaft rod, a fixed ring is rotatably mounted on the swivel, the fixed ring is fixedly connected to an air intake pipe via a connecting pipe, an arc-shaped push plate is rotatably mounted on the swivel, an iron ring is slidably arranged inside the swivel, the inner top surface of the swivel is made of magnetic material, a deflection assembly is arranged between the iron ring and the arc-shaped push plate, the deflection assembly is configured to rotate the arc-shaped push plate when the iron ring moves.

[0010] Preferably, the deflection assembly includes a rotating rod, a first torsion spring and a pressing block; the rotating rod is rotatably installed inside the rotating ring, the top end of the rotating rod is fixedly connected to one end of the arc-shaped push plate, and an arc surface is provided on the rotating rod, so the first torsion spring is fixedly installed between the rotating rod and the inner top surface of the rotating ring, and the pressing block is fixedly installed on the iron ring.

[0011] Preferably, a closing cylinder is fixedly mounted on the inner surface of the rotating ring, and a closing block is fixedly mounted on the iron ring.

[0012] Preferably, a ring rod is rotatably mounted on the fixed ring, a connecting head is fixedly mounted on the top of the connecting tube, the connecting tube is connected to the interior of the ring rod through the connecting head, a plurality of dust suction tubes are fixedly mounted on the ring rod, the dust suction tubes are fixedly connected to the rotating ring, a plurality of suction holes are provided on the dust suction tube, and a microporous plate is fixedly mounted inside the dust suction tube.

[0013] Preferably, a second branch pipe is fixedly mounted on the dust suction pipe, a sealing cover is rotatably mounted on the bottom end of the second branch pipe, and a second torsion spring is fixedly mounted between the sealing cover and the second branch pipe.

[0014] Preferably, a first branch pipe is fixedly mounted on the dust suction pipe, a blocking column is fixedly mounted on the lower surface of the iron ring, and a pressure rod is fixedly mounted on the blocking column.

[0015] Preferably, a plurality of notches are provided on the upper surface of the rotating ring.

[0016] Preferably, a pressure head is fixedly mounted on the top end of the extension rod.

[0017] Compared with the prior art, the present invention provides a heavy truck intake pipe assembly, which has the following beneficial effects:

[0018] 1. The first sealing plug and the second sealing plug are slidably arranged in the dust exhaust pipe group, a spring is fixedly arranged between the first sealing plug and the dust exhaust pipe group, an air suction pipe is fixedly arranged in the dust exhaust pipe group, a dust suction part is arranged on the air suction pipe, a rotating ring is rotatably arranged on the circular cylinder, a fixed ring is rotatably arranged on the rotating ring, the fixed ring is fixedly connected to the air suction pipe through a connecting pipe, an arc-shaped push plate is rotatably arranged on the rotating ring, an iron ring is slidably arranged inside the rotating ring, not only will air not enter the separation cylinder from the dust exhaust pipe group, causing a large amount of dust to enter the air filter through the circular cylinder, but the formed dust can be automatically discharged from the discharge port, and the driver does not need to clean the accumulated dust regularly;

[0019] 2. An annular rod is rotatably installed on a fixed ring, and a connecting tube is connected with the inside of the annular rod through a connecting head. A plurality of dust suction tubes are fixedly installed on the annular rod, and a microporous plate is installed inside the dust suction tube. A first branch tube and a second branch tube are fixedly installed on the dust suction tube, and a sealing cover is rotatably installed on the second branch tube, and a second torsion spring is arranged between the sealing cover and the second branch tube. A sealing column is fixedly installed on the iron ring, and a pressure rod is fixedly installed on the sealing column. The dust suction tube can absorb dust in the air in the annular cylinder, and the inhaled dust accumulates on the microporous plate. The sealing column can push the dust adsorbed on the microporous plate into the second branch tube, so that the dust is discharged through the bottom opening of the second branch tube, which can further reduce the dust content in the air, make the air entering the air filter cleaner, and extend the replacement cycle of the air filter.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 3It is a schematic diagram of the cross-sectional structure of the separation cylinder and the dust exhaust pipe group in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the first sealing plug, the second sealing plug, the suction pipe, the spring and the extension rod in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the rotating ring in the present invention;

[0027] Figure 6 It is a schematic diagram of the cross-sectional structure of the rotating ring in the present invention;

[0028] Figure 7 For the present invention Figure 6 A magnified view of part A in FIG.

[0029] Figure 8 It is a schematic diagram of the disassembled structure of the transfer ring, arc-shaped push plate, iron ring and fixed ring in the present invention;

[0030] Fig. 9 It is a schematic structural diagram of the arc-shaped push plate, the rotating rod and the first torsion spring in the present invention;

[0031] Fig.10 It is a schematic diagram of the internal structure of the rotating ring in the present invention;

[0032] Fig.11 It is a schematic diagram of the structure of the iron ring in the present invention;

[0033] Fig.12 It is a schematic diagram of the structure of the rotating ring and the dust suction pipe in the present invention;

[0034] Fig.13 For the present invention Fig.12 A magnified view of part B in FIG.

[0035] Fig.14 It is a schematic diagram of the partial cross-sectional structure of the dust suction pipe in the present invention.

[0036] In the figure:

[0037] 10. air inlet pipe; 101. air inlet; 11. separation cylinder; 12. annular cylinder; 121. connecting rod; 13. swirl blade; 14. shaft rod; 15. first wide tube; 16. straight tube; 17. second wide tube; 171. discharge port; 18. guide platform;

[0038] 20. First sealing plug; 21. Second sealing plug; 22. Air suction pipe; 221. Dust suction unit; 222. Connecting pipe; 2221. Connecting head; 23. Small air pump; 24. Spring; 25. Connecting rod; 26. Extending rod; 261. Pressure head;

[0039] 30. rotating ring; 301. notch; 302. closing cylinder; 31. fixing ring; 311. fixing rod; 32. iron ring; 321. closing block; 322. pressing block; 323. blocking column; 3231. pressing rod; 33. arc-shaped push plate; 331. rotating rod; 3311. arc surface; 34. first torsion spring;

[0040] 40. Dust suction pipe; 401. Suction hole; 402. First branch pipe; 403. Second branch pipe; 41. Ring rod; 42. Microporous plate; 43. Cover; 44. Second torsion spring. DETAILED DESCRIPTION

[0041] The following is combined with Figures 1 to 14 The principles and features of the present invention are described, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0042] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0044] Embodiment 1:

[0045] Please combine Figures 1 to 14As shown, the present invention provides a heavy truck intake pipe assembly, including an intake pipe 10, an air inlet 101 is arranged on the top of the intake pipe 10, an exhaust port is arranged at the bottom of the intake pipe 10, a separation cylinder 11 is fixedly installed on the intake pipe 10, a shaft 14 is rotatably installed inside the separation cylinder 11, a swirl blade 13 is fixedly installed on the shaft 14, and the inside of the separation cylinder 11 is fixedly connected to a circular cylinder 12 through a guide platform 18. When the engine of the heavy truck is started, air is sucked into the intake pipe 10 from the air inlet 101, and the air drives the multiple swirl blades 13 to rotate. The dust with a larger volume in the air is separated from the top of the circular cylinder 12 under the action of centrifugal force, and the large dust particles fall on the surface of the guide platform 18, and the air enters the exhaust port through the circular cylinder 12. The intake pipe assembly also includes:

[0046] The dust exhaust pipe group is connected with the interior of the separation cylinder 11. In order to make the dust enter the dust exhaust pipe group more smoothly, the upper surface of the guide platform 18 is an inclined surface, and the top of the dust exhaust pipe group is located at the bottom end of the inclined surface, so that the dust falling on the surface of the guide platform 18 can smoothly enter the dust exhaust pipe group. The dust exhaust pipe group includes a first wide pipe 15, a straight pipe 16 and a second wide pipe 17, wherein the top of the straight pipe 16 is fixedly connected to the bottom end of the first wide pipe 15, the bottom end of the straight pipe 16 is fixedly connected to the top of the second wide pipe 17, and a discharge port 171 is opened on the bottom end of the second wide pipe 17;

[0047] The first sealing plug 20 and the second sealing plug 21 are both arranged in the dust exhaust pipe group. The first sealing plug 20 and the second sealing plug 21 are fixedly connected by a connecting rod 25. A spring 24 is fixedly arranged between the first sealing plug 20 and the second wide tube 17. The diameters of the first sealing plug 20 and the second sealing plug 21 are adapted to the inner diameter of the straight tube 16. The inner diameters of the first wide tube 15 and the second wide tube 17 are both larger than the diameters of the first sealing plug 20 and the second sealing plug 21.

[0048] The suction pipe 22 is fixedly installed in the dust exhaust pipe group, and a small air pump 23 is fixedly installed in the second wide pipe 17. The suction end of the small air pump 23 is fixedly connected to the suction pipe 22. One end of the suction pipe 22 passes through the first sealing plug 20 and the second sealing plug 21 and is slidably connected to the first sealing plug 20 and the second sealing plug 21. A dust suction part 221 is provided on the suction pipe 22, and a plurality of first micropores are opened on the dust suction part 221. When the dust suction part 221 absorbs dust, the first sealing plug 20 is located inside the straight pipe 16, and the first micropores are provided on the second micropores. The second sealing plug 21 is located inside the first wide tube 15. Since the inner diameter of the first wide tube 15 is larger than the diameter of the second sealing plug 21, the generated dust can enter the straight tube 16. When the dust in the straight tube 16 is discharged, the first sealing plug 20 enters the second wide tube 17, and the second sealing plug 21 is located inside the straight tube 16, so that the straight tube 16 can always remain in a closed state, and the outside air will not enter the interior of the separation cylinder 11 through the dust exhaust pipe group, causing a large amount of dust to enter the air filter through the annular cylinder 12.

[0049] The swivel 30 is rotatably mounted on the annular cylinder 12. The swivel 30 is fixedly connected to the shaft 14 through a connecting rod 121. A fixed ring 31 is rotatably mounted on the swivel 30. The fixed ring 31 is fixedly connected to the annular cylinder 12 through a fixing rod 311. The fixed ring 31 is fixedly connected to the suction pipe 22 through a connecting pipe 222. An arc-shaped push plate 33 is rotatably mounted on the swivel 30. An iron ring 32 is slidably arranged inside the swivel 30. The inner top surface of the swivel 30 is made of magnetic material. An active cavity is formed between the lower surface of the iron ring 32 and the inner bottom surface of the swivel 30. The connecting pipe 222 is connected to the active cavity. The upper surface of the rotating ring 30 is provided with a plurality of notches 301. When the dust collecting part 221 absorbs dust normally, the iron ring 32 is adsorbed on the inner top surface of the rotating ring 30. Since the dust is light in weight, most of the dust will be adsorbed on the outer surface of the dust collecting part 221. When the amount of dust on the dust collecting part 221 increases, the dust will block the first micropores on the dust collecting part 221, and the air will not be able to enter the suction pipe 22 from the dust collecting part 221. After that, the air in the active cavity is extracted, so that the iron ring 32 moves downward. Since a deflection component is provided between the iron ring 32 and the arc-shaped push plate 33, the second sealing plug 2 1 is fixedly mounted with an extension rod 26, and a pressure head 261 is fixedly mounted on the top of the extension rod 26. Under the action of the deflection assembly, the arc-shaped push plate 33 is rotated. During the rotation of the arc-shaped push plate 33 along with the rotating ring 30, the curved surface of the arc-shaped push plate 33 will squeeze the pressure head 261, so that the first sealing plug 20 and the second sealing plug 21 slide in the dust exhaust pipe group. The first sealing plug 20 moves to the inside of the second wide pipe 17, and the second sealing plug 21 enters the straight pipe 16. The second sealing plug 21 pushes the dust adsorbed on the dust suction part 221. After the dust is separated from the dust suction part 221, the suction force is lost, and the dust falls into the second wide pipe 17. Tube 17 and discharged through the exhaust port 171, not only will air not enter the separation cylinder 11 from the dust exhaust pipe group, but the formed dust can be automatically discharged from the exhaust port 171, and the driver does not need to clean the accumulated dust regularly; after the dust on the dust suction part 221 is removed, the air can continue to enter the suction pipe 22 through the first micropore. At this time, part of the air enters the active cavity, and the suction force on the iron ring 32 is reduced. The inner top surface of the rotating ring 30 will attract the iron ring 32, causing the iron ring 32 to rise and return to its original position, and the first sealing plug 20 and the second sealing plug 21 are reset under the elastic force of the spring 24.

[0050] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working method, as described below for details.

[0051] Embodiment 2:

[0052] The deflection assembly includes a rotating rod 331, a first torsion spring 34 and a pressing block 322; the rotating rod 331 is rotatably mounted inside the rotating ring 30, the top end of the rotating rod 331 is fixedly connected to one end of the arc-shaped push plate 33, an arc surface 3311 is provided on the rotating rod 331, the first torsion spring 34 is fixedly mounted between the rotating rod 331 and the inner top surface of the rotating ring 30, and the pressing block 322 is fixedly mounted on the iron ring 32. When the iron ring 32 moves downward, the bottom end of the pressing block 322 squeezes the arc surface 3311 to rotate the rotating rod 331 ; When the iron ring 32 moves upward to reset, the arc-shaped push plate 33 rotates and resets under the elastic force of the first torsion spring 34; It should be noted that a closing cylinder 302 is fixedly installed on the inner surface of the rotating ring 30, the first torsion spring 34 and the rotating rod 331 are both arranged on the inner side of the closing cylinder 302, a closing block 321 is fixedly installed on the iron ring 32, and the pressing block 322 is fixedly installed on the closing block 321. The closing block 321 and the closing cylinder 302 form a closed annular column, so that the movable cavity can remain in a sealed state.

[0053] Embodiment three:

[0054] Only large dust particles in the air can be removed by the rotation of the swirl blades 13, and the air entering the annular cylinder 12 still contains a large amount of small dust particles. In order to further reduce the amount of dust in the air, an annular rod 41 is rotatably installed on the fixing ring 31, and a connector 2221 is fixedly installed on the top of the connecting tube 222. The connecting tube 222 is connected to the inside of the annular rod 41 through the connector 2221. A plurality of dust suction pipes 40 are fixedly installed on the annular rod 41. The dust suction pipe 40 is fixedly connected to the rotating ring 30. A plurality of suction holes 401 are provided on the dust suction pipe 40. A microporous plate 42 is fixedly installed inside the dust suction pipe 40. The microporous plate 42 has a plurality of second micropores. The plurality of suction holes 401 can absorb dust in the air in the annular cylinder 12 and suck the dust into the dust suction pipe 40, and the microporous plate 42 blocks the sucked dust; a second branch pipe 403 and a first branch pipe 402 are fixedly installed on the dust suction pipe 40. The second branch pipe 403 and the first branch pipe 402 are fixedly installed on the dust suction pipe 40. 03 is arranged just below the microporous plate 42, and the first branch pipe 402 is arranged just above the microporous plate 42, a blocking column 323 is fixedly installed on the lower surface of the iron ring 32, and a pressure rod 3231 is fixedly installed on the blocking column 323, and a sealing cover 43 is rotatably installed on the bottom end of the second branch pipe 403, and a second torsion spring 44 is fixedly installed between the sealing cover 43 and the second branch pipe 403. After the dust suction part 221 and the microporous plate 42 are both blocked by dust, the iron ring 32 can move downward, and the blocking column 323 will push the dust adsorbed on the microporous plate 42 into the second branch pipe 403, and the pressure rod 3231 can push the sealing cover 43 to rotate downward when it descends, and open the bottom end opening of the second branch pipe 403, so that the dust is discharged through the bottom end opening of the second branch pipe 403, and finally the dust will enter the dust exhaust pipe group, which can further reduce the dust content in the air, make the air entering the air filter cleaner, and extend the replacement cycle of the air filter.

[0055] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A heavy truck intake pipe assembly, comprising an intake pipe (10) and a separation cylinder (11) fixedly mounted on the intake pipe (10), wherein a shaft (14) is rotatably mounted inside the separation cylinder (11), a swirl blade (13) is fixedly mounted on the shaft (14), and a circular cylinder (12) is fixedly connected to the interior of the separation cylinder (11) via a guide platform (18), characterized in that: Also includes: A dust exhaust pipe group, the dust exhaust pipe group comprising a first wide pipe (15), a straight pipe (16) and a second wide pipe (17), wherein the top end of the straight pipe (16) is fixedly connected to the bottom end of the first wide pipe (15), the bottom end of the straight pipe (16) is fixedly connected to the top end of the second wide pipe (17), and a discharge outlet (171) is provided at the bottom end of the second wide pipe (17); A first sealing plug (20) and a second sealing plug (21) are both arranged in the dust exhaust pipe group, the first sealing plug (20) and the second sealing plug (21) are fixedly connected, a spring (24) is fixedly arranged between the first sealing plug (20) and the second wide tube (17), the diameters of the first sealing plug (20) and the second sealing plug (21) are adapted to the inner diameter of the straight tube (16), the inner diameters of the first wide tube (15) and the second wide tube (17) are both larger than the diameters of the first sealing plug (20) and the second sealing plug (21), and a protruding rod (26) is fixedly installed on the second sealing plug (21); An air suction pipe (22) is fixedly installed in the dust exhaust pipe group, a small air pump (23) is fixedly installed in the second wide pipe (17), an air suction end of the small air pump (23) is fixedly connected to the air suction pipe (22), one end of the air suction pipe (22) passes through the first sealing plug (20) and the second sealing plug (21) and is slidably connected to the first sealing plug (20) and the second sealing plug (21), and a dust suction part (221) is provided on the air suction pipe (22); A swivel (30) is rotatably mounted on the annular cylinder (12). The swivel (30) is fixedly connected to the shaft (14). A fixed ring (31) is rotatably mounted on the swivel (30). The fixed ring (31) is fixedly connected to the suction pipe (22) through a connecting pipe (222). An arc-shaped push plate (33) is rotatably mounted on the swivel (30). An iron ring (32) is slidably arranged inside the swivel (30). The inner top surface of the swivel (30) is made of magnetic material. A deflection assembly is arranged between the iron ring (32) and the arc-shaped push plate (33). The deflection assembly is configured to rotate the arc-shaped push plate (33) when the iron ring (32) moves.

2. The heavy truck intake pipe assembly according to claim 1, characterized in that: The deflection assembly comprises a rotating rod (331), a first torsion spring (34) and a pressing block (322); The rotating rod (331) is rotatably mounted inside the rotating ring (30), and the top end of the rotating rod (331) is fixedly connected to one end of the arc-shaped push plate (33). The rotating rod (331) is provided with an arc surface (3311), so the first torsion spring (34) is fixedly mounted between the rotating rod (331) and the inner top surface of the rotating ring (30), and the pressing block (322) is fixedly mounted on the iron ring (32).

3. The heavy truck intake pipe assembly according to claim 2, characterized in that: A sealing cylinder (302) is fixedly mounted on the inner surface of the rotating ring (30), and a sealing block (321) is fixedly mounted on the iron ring (32).

4. The heavy truck intake pipe assembly according to claim 1, characterized in that: An annular rod (41) is rotatably mounted on the fixed ring (31); a connector (2221) is fixedly mounted on the top of the connecting tube (222); the connecting tube (222) is connected to the interior of the annular rod (41) via the connector (2221); a plurality of dust suction pipes (40) are fixedly mounted on the annular rod (41); the dust suction pipes (40) are fixedly connected to the rotating ring (30); a plurality of suction holes (401) are provided on the dust suction pipe (40); and a microporous plate (42) is fixedly mounted inside the dust suction pipe (40).

5. The heavy truck air intake pipe assembly according to claim 4, characterized in that: A second branch pipe (403) is fixedly mounted on the dust suction pipe (40), a sealing cover (43) is rotatably mounted on the bottom end of the second branch pipe (403), and a second torsion spring (44) is fixedly mounted between the sealing cover (43) and the second branch pipe (403).

6. The heavy truck air intake pipe assembly according to claim 5, characterized in that: A first branch pipe (402) is fixedly mounted on the dust suction pipe (40), a blocking column (323) is fixedly mounted on the lower surface of the iron ring (32), and a pressure rod (3231) is fixedly mounted on the blocking column (323).

7. The heavy truck intake pipe assembly according to claim 1, characterized in that: The upper surface of the rotating ring (30) is provided with a plurality of notches (301).

8. The heavy truck intake pipe assembly according to claim 1, characterized in that: A pressure head (261) is fixedly mounted on the top end of the extension rod (26).

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