Waterproof high-position air intake pipe

Abstract

This invention relates to the field of engine intake pipe technology, particularly a waterproof high-position intake pipe. The invention includes a first pipe body and a second pipe body, with a cylindrical body fixedly connected between them. A base is fixedly connected to the end of the first pipe body furthest from the cylindrical body. Through the arrangement of a ring column and a triangular ring, the invention achieves two objectives: firstly, the ring column collects rainwater, allowing the cylindrical body to store a certain amount of water; secondly, the triangular ring prevents rainwater collected on the outside of the ring column from splashing onto the inside. By controlling the extension of a miniature telescopic rod, a rubber pad seals the connection between the second pipe body and the cylindrical body. The rubber layer at the top of the second dropper abuts against the limiting ring, achieving a sealing effect on the cylindrical body. Subsequently, water collected at the bottom of the cylindrical body is discharged through an air nozzle and a solenoid valve. Simultaneously, the sponge ring is also dried.

Description

Technical Field

[0001] The invention relates to the field of engine air intake pipes, in particular to a waterproof high-position air intake pipe. Background Art

[0002] The waterproof high-position air intake pipe is also called a wading hose. It is mainly used in off-road vehicles or large trucks. It prevents water from entering the pipes in the engine for wading sections and prevents water from entering the engine by raising the position of the engine air intake.

[0003] The patent with publication number CN111379616A discloses an integrated high-position air intake pipe and a vehicle. The integrated high-position air intake pipe comprises a pipe body, the pipe body comprises a first end and a second end opposite to each other, the first end is provided with an air inlet, and the second end is provided with an air outlet.

[0004] However, the above-mentioned intake pipe still has certain defects when in use. After water enters the intake pipe, the water inside the intake pipe cannot be effectively discharged. When the vehicle is traveling on a bumpy road, there is a certain risk of splashing the water inside. Secondly, in the prior art, the connection between the intake pipe and the engine air intake port is often loose, which makes it easy for water to enter the engine. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a waterproof high-position air intake pipe.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a waterproof high-position air intake pipe, comprising a first tube body and a second tube body, a cylinder body is fixedly connected between the first tube body and the second tube body, an end of the first tube body away from the cylinder body is fixedly connected to a base, one side of the base is fixedly connected to a connecting pipe for connecting to an engine air intake, an end of the second tube body away from the cylinder body is fixedly connected to an air intake box body, a waterproof component is arranged inside the air intake box body, an auxiliary component for secondary waterproofing is arranged on the inner side of the cylinder body, a damping component for shock absorption is arranged on the inner top of the first tube body, and the damping component is also used to seal between the connecting pipe and the air intake of the engine;

[0007] The auxiliary component includes a sponge ring fixedly sleeved inside the cylinder, the top and bottom of the cylinder are respectively connected to the first tube body and the second tube body, the inner bottom of the cylinder is fixedly connected to a ring column, the top outer side of the ring column is fixedly connected to a triangular ring, the cross section of the triangular ring is triangular, the inclined surface of the triangular ring faces the sponge ring, the bottom of the cylinder is provided with a solenoid valve, and the top of the cylinder away from the solenoid valve is provided with a gas nozzle;

[0008] The bottom of the air inlet box body is connected to the second tube body, an air groove is provided inside the base, one end of the air groove is connected to the first tube body, and the end of the air groove away from the first tube body is connected to the connecting pipe.

[0009] Preferably, the waterproof component includes a triangular plate, which is fixedly connected to the inside of the air inlet box body. A rectangular air inlet port is opened on one side of the air inlet box body. The triangular plate is located on the side of the connection between the air inlet box body and the second tube body, close to the air inlet port. A plurality of inclined plates are fixedly connected in the air inlet port, and reinforcing ribs for diversion and reinforcement are fixedly connected to the sides of the inclined plates.

[0010] Preferably, the damping assembly includes a damping cylinder, a plurality of fixing rods are fixedly connected to the bottom outer wall of the damping cylinder, one end of the fixing rod away from the damping cylinder is fixedly connected to the top inner wall of the first tube body, a piston plate is slidably connected to the inside of the damping cylinder, the top and bottom of the piston plate are respectively fixedly connected to the first piston rod and the second piston rod, the first piston rod and the second piston rod respectively penetrate the top and bottom wall plates of the damping cylinder, and the first piston rod and the second piston rod are both sleeved with damping springs, and the top of the first piston rod is fixedly connected to a first pendant for shock absorption.

[0011] Preferably, a conical ring plate is fixedly connected to the bottom side of the first pendant, an annular rubber pad is fixedly connected to the top middle section of the conical ring plate, the rubber pad movably seals the connection between the cylinder and the second tube body, and the inclined surface of the conical ring plate faces the sponge ring.

[0012] Preferably, the end of the second piston rod away from the piston plate is fixedly connected to a steel wire, the end of the steel wire away from the second piston rod is fixedly connected to a second pendant, a limiting ring is fixedly connected to the inner wall of the top end portion of the first tube body, a rubber layer is fixedly connected to the top of the second pendant, the rubber layer is movably abutted against the limiting ring, miniature telescopic rods are embedded on both sides of the bottom of the damping cylinder, the fixed end of the miniature telescopic rod is fixedly sleeved in the bottom wall plate of the damping cylinder, and the telescopic end of the miniature telescopic rod is movably abutted against the bottom wall plate of the piston plate.

[0013] Preferably, the bottom sides of the damping cylinder are respectively connected with a built-in air inlet pipe and a built-in air outlet pipe, a one-way air inlet valve is provided at the connection point between the built-in air inlet pipe and the damping cylinder, a one-way air outlet valve is provided at the connection point between the built-in air outlet pipe and the damping cylinder, and an extension pipe is connected to one end of the built-in air inlet pipe away from the damping cylinder, and the extension pipe is fixedly connected to a side wall panel of the base.

[0014] Preferably, the connecting tube is fixedly connected to the side wall of the base, and the connecting tube is located above the extension tube. A sealing airbag is embedded on the outer wall of the connecting tube, and the sealing airbag is sealed between the connecting tube and the air inlet of the engine.

[0015] Preferably, one end of the built-in air outlet pipe away from the damping cylinder is connected to the sealing airbag, and a one-way air pressure valve is provided at the connection between the two, and the damping cylinder supplies air to the sealing airbag through the built-in air outlet pipe.

[0016] Preferably, an annular groove is provided in the side wall of the base, a plurality of air holes are provided on the side of the annular groove close to the sealing airbag, a pressure relief pipe is also provided on the inner bottom of the base, both ends of the pressure relief pipe are respectively connected to the annular groove and the sealing airbag, and a pressure relief valve is provided at the connection between the pressure relief pipe and the sealing airbag.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention arranges a ring column and a triangular ring. On the one hand, the ring column can collect rainwater so that the cylinder can store a certain amount of water. On the other hand, the triangular ring can also prevent the rainwater collected on the outside of the ring column from splashing to the inside of the ring column. By controlling the extension of the micro telescopic rod, the rubber pad is sealed at the connection between the second tube body and the cylinder. The rubber layer arranged on the top of the second pendant body will abut against the limit ring to achieve the sealing effect on the cylinder. Subsequently, the water collected at the bottom of the cylinder is discharged through the air nozzle and the solenoid valve. At the same time, the sponge ring can also be dried.

[0019] 2. The present invention can achieve a sealing effect by sealing the sealing airbag between the connecting pipe and the engine air inlet, which is beneficial to avoid water seepage into the engine air inlet due to the low engine air inlet when the vehicle is wading, and can effectively avoid water ingress into the engine. Through the provision of the damping assembly, the air in the chamber below the piston plate inside the damping cylinder enters the sealing airbag, causing the sealing airbag to expand. After the sealing airbag expands, it is beneficial to make the seal between the connecting pipe and the engine air inlet tighter, further preventing water seepage between the connecting pipe and the engine air inlet, which is beneficial to protecting the engine and avoiding engine malfunctions due to water seepage.

[0020] 3. The present invention promotes the evaporation of water stains by blowing the airflow to the connection between the connecting pipe and the engine air inlet, which is beneficial to avoid the penetration of water stains. On the one hand, it is beneficial to maintain the dryness of the connection between the connecting pipe and the engine air inlet, and on the other hand, it can also avoid the penetration of water stains caused by long-term retention of water stains at the connection between the connecting pipe and the engine air inlet. The long-term penetration of water flow will gradually penetrate into the engine air inlet, thereby causing water to enter the engine. The provision of air holes is beneficial to avoid this situation, thereby further improving the waterproofness of the engine air inlet end. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective;

[0023] Figure 3 It is a schematic cross-sectional view of the structure of the base of the present invention;

[0024] Figure 4 For the present invention Figure 3 An enlarged schematic diagram of the structure of section A is shown;

[0025] Figure 5 For the present invention Figure 3 An enlarged schematic diagram of the structure of part B is shown;

[0026] Figure 6 It is a schematic cross-sectional view of the structure of the cylinder of the present invention;

[0027] Figure 7 For the present invention Figure 6 An enlarged schematic diagram of the C-section structure is shown;

[0028] Figure 8 For the present invention Figure 6 An enlarged schematic diagram of the D-section structure is shown;

[0029] Fig. 9 It is a schematic diagram of the connection structure of the rubber pad of the present invention;

[0030] Fig.10 It is a schematic diagram of the connection structure of the inclined plate of the present invention.

[0031] In the figure: 1. first tube body; 2. second tube body; 3. cylinder body; 4. air inlet box body; 5. inclined plate; 6. base; 7. connecting pipe; 8. sealing airbag; 9. air nozzle; 10. solenoid valve; 11. extension tube; 12. sponge ring; 13. reinforcing rib; 14. first pendant; 15. conical ring plate; 16. rubber pad; 17. damping cylinder; 18. ring column; 19. triangular ring; 20. fixing rod; 21. first piston rod; 22. second piston rod; 23. piston plate; 24. damping spring; 25. built-in air outlet pipe; 26. built-in air inlet pipe; 27. second pendant; 28. steel wire; 29. ​​one-way air pressure valve; 30. ring groove; 31. pressure relief pipe; 32. pressure relief valve; 33. micro telescopic rod; 34. limit ring; 35. triangular plate. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figures 1 to 10The waterproof high-position air intake pipe shown includes a first tube body 1 and a second tube body 2, a cylinder body 3 is fixedly connected between the first tube body 1 and the second tube body 2, an end of the first tube body 1 away from the cylinder body 3 is fixedly connected to a base 6, one side of the base 6 is fixedly connected to a connecting pipe 7 for connecting to the engine air intake port, and the end of the second tube body 2 away from the cylinder body 3 is fixedly connected to an air intake box body 4, a waterproof component is arranged inside the air intake box body 4, an auxiliary component for secondary waterproofing is arranged on the inner side of the cylinder body 3, a damping component for shock absorption is arranged on the inner top of the first tube body 1, and the damping component is also used to seal between the connecting pipe 7 and the air intake port of the engine.

[0034] In specific implementation, the waterproof high-position air intake pipe is also called a wading hose, which is mainly used in off-road vehicles or large trucks. For wading sections, it prevents water from entering the pipes in the engine. The position of the engine air intake is raised to prevent water from entering the engine. The waterproof high-position air intake pipe is mainly used to deliver oxygen required for combustion to the engine.

[0035] As a further implementation scheme of the present invention, the waterproof component includes a triangular plate 35, which is fixedly connected to the inside of the air inlet box body 4. The bottom of the air inlet box body 4 is connected to the second tube body 2. A rectangular air inlet port is opened on one side of the air inlet box body 4. The triangular plate 35 is located on the side of the connection between the air inlet box body 4 and the second tube body 2, close to the air inlet port. A plurality of inclined plates 5 are fixedly connected in the air inlet port, and reinforcing ribs 13 for diversion and reinforcement are fixedly connected to the side of the inclined plate 5.

[0036] In a specific implementation, the reinforcing rib 13 protrudes outward, that is, a protrusion is set at one end toward the outside of the air intake box body 4, so that rainwater is shielded by the protrusion, further preventing rainwater from entering the air intake box body 4.

[0037] As a further embodiment of the present invention, the auxiliary component includes a sponge ring 12 fixedly sleeved inside the cylinder 3, the top and bottom of the cylinder 3 are respectively connected to the first tube body 1 and the second tube body 2, the inner bottom of the cylinder 3 is fixedly connected with a ring column 18, and the outer side of the top end of the ring column 18 is fixedly connected with a triangular ring 19, the cross-section of the triangular ring 19 is triangular, and the inclined surface of the triangular ring 19 faces the sponge ring 12, an electromagnetic valve 10 is arranged at the bottom of the cylinder 3, and an air nozzle 9 is arranged at the top of the cylinder 3 away from the electromagnetic valve 10.

[0038] In a specific implementation, the air nozzle 9 is connected to an external air pump, and the air pump is connected to the air nozzle 9 to achieve drainage of the cylinder 3 and drying of the sponge ring 12. It should be noted that the air pump can be a vehicle-mounted air pump, which does not need to be installed on the device and can be carried by the vehicle.

[0039] As a further embodiment of the present invention, the damping assembly includes a damping cylinder 17, a plurality of fixed rods 20 are fixedly connected to the bottom outer wall of the damping cylinder 17, one end of the fixed rod 20 away from the damping cylinder 17 is fixedly connected to the top inner wall of the first tube body 1, a piston plate 23 is slidably connected inside the damping cylinder 17, a first piston rod 21 and a second piston rod 22 are fixedly connected to the top and bottom of the piston plate 23, respectively, the first piston rod 21 and the second piston rod 22 respectively penetrate the top and bottom wall plates of the damping cylinder 17, and a damping spring 24 is sleeved on the first piston rod 21 and the second piston rod 22, and a first pendant 14 for shock absorption is fixedly connected to the top of the first piston rod 21.

[0040] In a specific implementation, a rubber ring for sealing is provided on the outer wall of the piston plate 23 , and the rubber ring is slidably connected to the inner wall of the damping cylinder 17 .

[0041] As a further implementation scheme of the present invention, a conical ring plate 15 is fixedly connected to the bottom side of the first pendant 14, and an annular rubber pad 16 is fixedly connected to the top middle section of the conical ring plate 15. The rubber pad 16 is movably sealed at the connection between the cylinder 3 and the second tube body 2, and the inclined surface of the conical ring plate 15 faces the sponge ring 12.

[0042] In a specific implementation, the sponge ring 12 is fixedly sleeved on the inner wall of the cylinder 3. The top of the annular rubber pad 16 is provided with an inclined surface, and the inclined surface faces the top wall plate of the cylinder 3.

[0043] As a further implementation scheme of the present invention, one end of the second piston rod 22 away from the piston plate 23 is fixedly connected to a steel wire 28, and one end of the steel wire 28 away from the second piston rod 22 is fixedly connected to a second pendant 27. A limiting ring 34 is fixedly connected to the inner wall of the top end of the first tube body 1, and a rubber layer is fixedly connected to the top of the second pendant 27. The rubber layer is movably abutted against the limiting ring 34. Miniature telescopic rods 33 are embedded on both sides of the bottom of the damping cylinder 17. The fixed end of the miniature telescopic rod 33 is fixedly sleeved in the bottom wall panel of the damping cylinder 17, and the telescopic end of the miniature telescopic rod 33 is movably abutted against the bottom wall panel of the piston plate 23.

[0044] In a specific implementation, the mini telescopic rod 33 is an electric telescopic rod. When the mini telescopic rod 33 is retracted to the shortest state, the telescopic end thereof does not abut against the piston plate 23 .

[0045] As a further implementation scheme of the present invention, the bottom sides of the damping cylinder 17 are respectively connected with a built-in air inlet pipe 26 and a built-in air outlet pipe 25, a one-way air inlet valve is provided at the connection point between the built-in air inlet pipe 26 and the damping cylinder 17, and a one-way air outlet valve is provided at the connection point between the built-in air outlet pipe 25 and the damping cylinder 17, one end of the first tube body 1 away from the cylinder body 3 is fixedly connected to the base 6, and one end of the built-in air inlet pipe 26 away from the damping cylinder 17 is connected with an extension pipe 11, and the extension pipe 11 is fixedly connected to a side wall panel of the base 6.

[0046] In a specific implementation, the extension tube 11 can be specifically selected to be a rubber tube. An air filter, referred to as air filter, will be provided at the air intake end of the engine. This technology is a prior art and will not be disclosed in detail herein. By connecting the extension tube 11 with the end of the air filter and then sealing it, and connecting the extension tube 11 with the air filter, on the one hand, it is helpful to avoid the situation where dust enters the damping cylinder 17 due to connecting the extension tube 11 with the outside atmosphere. On the other hand, since the damping cylinder 17 draws less air, it will not cause the intake volume at the engine intake end to be too small.

[0047] The one-way air inlet valve can only allow the gas in the built-in air inlet pipe 26 to enter the damping cylinder 17 , and the one-way air outlet valve can only allow the gas in the damping cylinder 17 to enter the built-in air outlet pipe 25 .

[0048] As a further implementation scheme of the present invention, an air groove is opened inside the base 6, one end of the air groove is connected to the first tube body 1, and the end of the air groove away from the first tube body 1 is connected to the connecting tube 7, the connecting tube 7 is fixedly connected to the side wall of the base 6, and the connecting tube 7 is located above the extension tube 11, and a sealing air bag 8 is embedded on the outer wall of the connecting tube 7, and the sealing air bag 8 is sealed between the connecting tube 7 and the air intake of the engine.

[0049] In a specific implementation, the gas groove is used to guide the gas in the first tube body 1 to the connecting tube 7 .

[0050] As a further implementation scheme of the present invention, one end of the built-in air outlet pipe 25 away from the damping cylinder 17 is connected to the sealing airbag 8, and a one-way air pressure valve 29 is provided at the connection between the two. The damping cylinder 17 supplies air to the sealing airbag 8 through the built-in air outlet pipe 25.

[0051] In a specific implementation, a preset air pressure value is set for the one-way air pressure valve 29. When the air pressure in the chamber below the piston plate 23 inside the damping cylinder 17 is higher than the preset air pressure value, the one-way air pressure valve 29 opens. Otherwise, the one-way air pressure valve 29 closes. It should be noted that the one-way air pressure valve 29 can only allow the gas in the built-in air outlet pipe 25 to enter the boiling sealing airbag 8.

[0052] As a further implementation scheme of the present invention, an annular groove 30 is opened in the side wall of the base 6, and a plurality of air holes are opened on the side of the annular groove 30 close to the sealing airbag 8. A pressure relief pipe 31 is also opened at the inner bottom of the base 6, and the two ends of the pressure relief pipe 31 are respectively connected to the annular groove 30 and the sealing airbag 8, and a pressure relief valve 32 is provided at the connection point between the pressure relief pipe 31 and the sealing airbag 8.

[0053] In a specific implementation, the pressure relief valve 32 is provided with a preset pressure relief value. When the air pressure in the sealing airbag 8 is higher than the preset pressure relief value, the pressure relief valve 32 is opened, otherwise the pressure relief valve 32 is closed. The preset pressure relief value of the pressure relief valve 32 is higher than the preset pressure value of the one-way air pressure valve 29.

[0054] Working principle of the present invention:

[0055] When the present invention is used, the connecting pipe 7 is first inserted into the engine air inlet, and then the connecting pipe 7 is sleeved on the outer wall of the engine air inlet through a clamp, and the connecting pipe 7 is fixed by the clamp, thereby achieving the purpose of fixing the waterproof high-position air inlet pipe. After the connecting pipe 7 is fixed, the sealing airbag 8 will be blocked between the connecting pipe 7 and the engine air inlet, thereby achieving a sealing effect, which is conducive to avoiding water seepage in the engine air inlet due to the low engine air inlet when the vehicle is wading, and can effectively avoid water ingress into the engine.

[0056] By connecting the extension pipe 11 to the air filter of the engine, the extension pipe 11 is connected to the output end of the engine air filter, so as to ensure that the extension pipe 11 delivers the purified filtered air to the damping cylinder 17. It should be noted that this can be achieved by adding a joint behind the air filter of the engine. This technology is prior art and will not be disclosed in detail here.

[0057] During the driving process of the vehicle, when the vehicle encounters a bumpy road section, the first pendant 14 and the second pendant 27 will drive the piston plate 23 to descend. During the descent process, the piston plate 23 will squeeze the air inside the damping cylinder 17, and then squeeze the air into the built-in air outlet pipe 25, so that the air in the chamber below the piston plate 23 inside the damping cylinder 17 enters the sealing airbag 8, so that the sealing airbag 8 expands. After the sealing airbag 8 expands, it is beneficial to make the seal between the connecting pipe 7 and the engine air inlet tighter, further prevent water seepage between the connecting pipe 7 and the engine air inlet, and help protect the engine and avoid engine failure due to water seepage. When the vehicle is driving on a flat road section, the first pendant 14 and the second pendant 27 will be reset under the action of the damping spring 24, and after the piston plate 23 is reset, gas will be replenished through the built-in air inlet pipe 26.

[0058] When the vehicle encounters a bumpy road during its travel, the first pendant 14 can effectively convert part of the vibration force into kinetic energy of the first pendant 14 rising and falling, thereby effectively reducing the shock of the device. Part of the force in the vertical direction can be effectively eliminated and absorbed by the rising and falling of the first pendant 14, which effectively promotes the shock absorption of the first tube body 1, the second tube body 2 and the cylinder body 3, and is beneficial to avoid damage to the device due to vibration. The force in the horizontal direction can be absorbed and offset by the second pendant 27. The force in the horizontal direction will cause the second pendant 27 to shake effectively, thereby effectively reducing the force in the horizontal direction during the vehicle's travel. This technology utilizes the damping principle in high-rise buildings, such as the "Shanghai Smart Eye". This technology is a prior art and will not be disclosed in detail here.

[0059] When the vehicle is driving in rainy weather, first of all, the inclined plate 5 set at the end of the air intake box body 4 can effectively block the rain, so that the rain will first impact on the inclined plate 5, and the inclined plate 5 is used to reduce the kinetic energy of the rain, which is beneficial to prevent the rain from entering the air intake box body 4, and then causing the rain to enter the engine, which is beneficial to prevent the engine from being damaged due to water ingress. At the same time, after the rain hits the inclined plate 5, it still has a certain inertia and will flow along the inclined plate 5 toward the air intake box body 4. The setting of the reinforcing ribs 13 can effectively guide the rain, so that the rain is guided to the bottom wall panel of the air intake box body 4, and through the shielding of the triangular plate 35, the rain flows out of the interior of the air intake box body 4 under the action of gravity, which can effectively prevent the rain from entering the second tube body 2 through the air intake box body 4, and thus can effectively protect the engine.

[0060] When the rainfall is too heavy, some rainwater will still enter the second tube body 2. Through the arrangement of the first pendant 14 and the conical ring plate 15, after the rainwater falls on the first pendant 14 and the conical ring plate 15, it splashes on the sponge ring 12 under the action of the inclined surfaces of the first pendant 14 and the conical ring plate 15. Through the absorption of rainwater by the sponge ring 12, it can further prevent rainwater from entering the engine, achieving the purpose of further waterproofing the engine, further ensuring that the engine will not be damaged by water ingress, and effectively guaranteeing the service life of the engine. At the same time, the sponge ring 12 can also play a certain silencing role, can reduce the noise caused by the flow of air, and through the absorption of sound by the hollow grooves on the sponge ring 12, it can effectively achieve the purpose and effect of noise reduction.

[0061] Rainwater is absorbed by the sponge ring 12 and collected at the bottom of the sponge ring 12, and then collected at the bottom of the cylinder 3. Through the arrangement of the ring column 18 and the triangular ring 19, on the one hand, the ring column 18 can collect rainwater, so that the cylinder 3 can store a certain amount of water. On the other hand, the triangular ring 19 can also prevent the rainwater collected on the outside of the ring column 18 from splashing to the inside of the ring column 18. After the vehicle has finished driving, the miniature telescopic rod 33 is controlled to extend, so that the miniature telescopic rod 33 can push the piston plate 23 to move upward, so that the piston plate 23 squeezes the damping spring 24 above it, and then the first pendant 14 and the second pendant 27 are driven to rise under the rise of the piston plate 23. After the first pendant 14 rises, it will drive the rubber pad 16 to rise through the conical ring plate 15, so that the rubber pad 16 blocks the connection between the second tube 2 and the cylinder 3, and the rubber layer set on the top of the second pendant 27 will abut against the limit ring 34, so as to achieve the sealing effect on the cylinder 3.

[0062] After the cylinder 3 is sealed, the air nozzle 9 is connected to the external air pump, and then the solenoid valve 10 and the air pump are opened, so that the air pump blows air into the cylinder 3 through the air nozzle 9, and then the air pressure inside the cylinder 3 is increased, and the water collected at the bottom of the cylinder 3 is discharged. At the same time, by continuously controlling the air pump to blow air, the air flow will effectively circulate inside the cylinder 3, which is beneficial to the circulation of the air flow, so that after the water at the bottom of the cylinder 3 is discharged, it can also dry the sponge ring 12. Secondly, the end of the conical ring plate 15 will be located below the air nozzle 9 at this time. After entering the cylinder 3, the air flow will impact the conical ring plate 15, and through the inclined surface of the conical ring plate 15, the air flow will diffuse inside the cylinder 3, so that the air flow and the sponge ring 12 are in contact more fully, which can further dry the sponge ring 12 and improve the drying efficiency of the sponge ring 12.

[0063] When the car is traveling on a bumpy road, the piston plate 23 will be driven to rise and fall back and forth. The reciprocating sliding of the piston plate 23 will continuously supply air to the sealed airbag 8. At the same time, through the setting of the one-way air pressure valve 29, when the air pressure in the chamber below the piston plate 23 inside the damping cylinder 17 is compressed to a certain degree, the one-way air pressure valve 29 will open, and then the gas will enter the sealed airbag 8. This design can effectively increase the resistance encountered by the piston plate 23 when it moves downward, convert the kinetic energy of the bump into the internal energy of the compressed air, and improve the efficiency of shock absorption. As the gas is continuously discharged into the sealed airbag 8, the air pressure in the sealed airbag 8 will also continue to increase. When the air pressure in the sealed airbag 8 is higher than the preset pressure value of the pressure relief valve 32, the pressure relief valve 32 opens, so that the gas in the sealed airbag 8 can be discharged into the annular groove 30 through the pressure relief pipe 31, and finally blown to the connection between the connecting pipe 7 and the engine air intake through the air vent.

[0064] When the car is wading through water, there will be water stains on the surface of the connection between the engine air intake and the connecting pipe 7. The airflow blowing on the connection between the connecting pipe 7 and the engine air intake will promote the evaporation of the water stains, which is beneficial to avoid the penetration of the water stains. On the one hand, it is beneficial to maintain the dryness of the connection between the connecting pipe 7 and the engine air intake, and on the other hand, it can also avoid the situation where water stains stay for a long time at the connection between the connecting pipe 7 and the engine air intake and penetrate. The long-term penetration of water flow will gradually penetrate into the engine air intake, thereby causing water to enter the engine. The provision of air holes can help avoid this situation and further improve the waterproofness of the engine air intake end.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A waterproof high-position air inlet pipe, comprising a first pipe body (1) and a second pipe body (2), characterized in that: A cylinder (3) is fixedly connected between the first tube body (1) and the second tube body (2); an end of the first tube body (1) away from the cylinder body (3) is fixedly connected to a base (6); a connecting pipe (7) for connecting to an engine air inlet is fixedly connected to one side of the base (6); an end of the second tube body (2) away from the cylinder body (3) is fixedly connected to an air inlet box (4); a waterproof component is arranged inside the air inlet box (4); an auxiliary component for secondary waterproofing is arranged on the inner side of the cylinder body (3); a damping component for shock absorption is arranged on the inner top of the first tube body (1); the damping component is also used to seal between the connecting pipe (7) and the engine air inlet; The auxiliary component comprises a sponge ring (12) fixedly sleeved inside the cylinder (3); the top and bottom of the cylinder (3) are respectively connected to the first tube (1) and the second tube (2); the inner bottom of the cylinder (3) is fixedly connected to a ring column (18); the top outer side of the ring column (18) is fixedly connected to a triangular ring (19); the cross section of the triangular ring (19) is triangular; the inclined surface of the triangular ring (19) faces the sponge ring (12); the bottom of the cylinder (3) is provided with a solenoid valve (10); and the top of the cylinder (3) away from the solenoid valve (10) is provided with a gas nozzle (9); The bottom of the air inlet box body (4) is connected to the second tube body (2), an air groove is provided inside the base (6), one end of the air groove is connected to the first tube body (1), and the end of the air groove away from the first tube body (1) is connected to the connecting pipe (7); The waterproof component comprises a triangular plate (35), the triangular plate (35) being fixedly connected to the inside of the air inlet box body (4), a rectangular air inlet port being provided on one side of the air inlet box body (4), the triangular plate (35) being located on a side of the connection between the air inlet box body (4) and the second tube body (2) and close to the air inlet port, a plurality of inclined plates (5) being fixedly connected to the inside of the air inlet port, and reinforcing ribs (13) for guiding and reinforcing being fixedly connected to the side surfaces of the inclined plates (5); The damping assembly comprises a damping cylinder (17), a plurality of fixing rods (20) are fixedly connected to the outer wall of the bottom of the damping cylinder (17), one end of the fixing rod (20) away from the damping cylinder (17) is fixedly connected to the inner wall of the top end of the first tube body (1), a piston plate (23) is slidably connected to the inside of the damping cylinder (17), a first piston rod (21) and a second piston rod (22) are fixedly connected to the top and bottom of the piston plate (23), respectively, the first piston rod (21) and the second piston rod (22) respectively penetrate the top and bottom wall plates of the damping cylinder (17), and the first piston rod (21) and the second piston rod (22) are sleeved with damping springs (24), and the top of the first piston rod (21) is fixedly connected to a first pendant (14) for shock absorption; A conical ring plate (15) is fixedly connected to the bottom side of the first pendant (14), and an annular rubber pad (16) is fixedly connected to the top middle section of the conical ring plate (15). The rubber pad (16) is movably sealed at the connection between the cylinder (3) and the second tube (2), and the inclined surface of the conical ring plate (15) faces the sponge ring (12); The end of the second piston rod (22) away from the piston plate (23) is fixedly connected to a steel wire (28), and the end of the steel wire (28) away from the second piston rod (22) is fixedly connected to a second pendant (27). A limit ring (34) is fixedly connected to the inner wall of the top end of the first tube body (1). A rubber layer is fixedly connected to the top of the second pendant (27), and the rubber layer is movably abutted against the limit ring (34). Miniature telescopic rods (33) are embedded on both sides of the bottom of the damping cylinder (17). The fixed end of the miniature telescopic rod (33) is fixedly sleeved in the bottom wall plate of the damping cylinder (17), and the telescopic end of the miniature telescopic rod (33) is movably abutted against the bottom wall plate of the piston plate (23). The bottom sides of the damping cylinder (17) are respectively connected with a built-in air inlet pipe (26) and a built-in air outlet pipe (25); a one-way air inlet valve is provided at the connection point between the built-in air inlet pipe (26) and the damping cylinder (17); a one-way air outlet valve is provided at the connection point between the built-in air outlet pipe (25) and the damping cylinder (17); an end of the built-in air inlet pipe (26) away from the damping cylinder (17) is connected with an extension pipe (11); the extension pipe (11) is fixedly connected to a side wall plate of the base (6); The connecting pipe (7) is fixedly connected to the side wall of the base (6), and the connecting pipe (7) is located above the extension pipe (11). A sealing airbag (8) is embedded on the outer wall of the connecting pipe (7), and the sealing airbag (8) is sealed between the connecting pipe (7) and the air inlet of the engine.

2. The waterproof high-position air inlet pipe according to claim 1, characterized in that: One end of the built-in air outlet pipe (25) away from the damping cylinder (17) is connected to the sealing airbag (8), and a one-way air pressure valve (29) is provided at the connection point between the two. The damping cylinder (17) supplies air to the sealing airbag (8) through the built-in air outlet pipe (25).

3. The waterproof high-position air inlet pipe according to claim 2, characterized in that: An annular groove (30) is provided in the side wall of the base (6), and a plurality of air holes are provided on a side of the annular groove (30) close to the sealing airbag (8). A pressure relief pipe (31) is also provided at the inner bottom of the base (6), and two ends of the pressure relief pipe (31) are respectively connected to the annular groove (30) and the sealing airbag (8), and a pressure relief valve (32) is provided at the connection between the pressure relief pipe (31) and the sealing airbag (8).

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