Lifting type gas-water separation coaxial gas inlet device

Abstract

The invention discloses a lifting type gas-water separation coaxial gas inlet device which comprises a gas-water separation gas inlet cap, a vehicle body sealing cavity, an upper inner gas channel, a lower inner gas channel and a hydraulic cylinder. The gas-water separation gas inlet cap comprises a gas inlet pipe and a communicating pipe; the communicating pipe is arranged at the bottom of the gas inlet pipe; the lower end of the communicating pipe is inserted into the vehicle body sealing cavity and is in clearance fit with an upper port of the vehicle body sealing cavity; a partition plate is arranged at the upper part in the air inlet pipe; an upper inner air passage is arranged at the vent hole in the bottom surface of the partition plate; the lower end of the upper inner air passage is in clearance fit with the upper end of the lower inner air passage; the hydraulic cylinder can drive the upper inner air channel to slide along the lower inner air channel; an air outlet hole I and an air outlet hole II are formed in the side wall of the vehicle body sealing cavity, an air outlet hole III is formed in the side wall of the lower inner air channel, and the air outlet hole III is connected with the air outlet hole II through a connecting pipe. The water content in inlet air when the amphibious vehicle sails on the water is reduced, and meanwhile the problem that the engine and the three-proofing device scramble air mutually is solved.

Description

Technical Field

[0001] The invention relates to a lifting type gas-water separation coaxial air intake device, belonging to the technical field of amphibious vehicles. Background Art

[0002] At present, the air intake of the engine and three-defense device of domestic amphibious vehicles all adopts the brim-type structure. When sailing at high speed, a lot of water splashes up, especially when sailing at sea with wind and waves, a lot of seawater and water vapor enter the air filter and three-defense device through the brim-type air intake cap, causing the gas filter canister and booster fan and other components to be easily corroded and damaged, and the maintenance cycle of the air filter element is seriously shortened, which cannot meet the maintenance needs. In addition, the three-defense device takes air from the engine intake duct, and there is a problem of air grabbing between the three-defense device and the engine in water conditions, resulting in the inability to establish overpressure protection for the entire vehicle. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a lifting type air-water separation coaxial air intake device which can reduce the water content in the intake air of an amphibious vehicle when sailing on water, and can solve the problem of the engine and the three-defense device snatching air from each other.

[0004] The technical solution adopted by the present invention is: a lifting type air-water separation coaxial air intake device, including an air-water separation air intake cap, a vehicle body sealed cavity, an upper inner air duct, a lower inner air duct and a hydraulic cylinder; the air-water separation air intake cap includes an air intake pipe and a connecting pipe, the connecting pipe is arranged at the bottom of the air intake pipe, the lower end of the connecting pipe is inserted into the vehicle body sealed cavity and is in clearance with the upper end of the vehicle body sealed cavity; a partition is arranged at the upper part of the air intake pipe, the partition divides the air intake hole of the air intake pipe into two parts; an upper air intake hole is arranged at the bottom of the partition Inner air duct, the axis of the upper inner air duct is parallel to the axis of the connecting pipe; a lower inner air duct is arranged in the vehicle body sealing cavity, and the lower end of the upper inner air duct is gap-matched with the upper end of the lower inner air duct; the hydraulic cylinder is installed in the vehicle body sealing cavity, and the piston rod end of the hydraulic cylinder is connected to the upper inner air duct, which can drive the upper inner air duct to slide along the lower inner air duct; an air outlet hole I and an air outlet hole II are arranged on the side wall of the vehicle body sealing cavity, and an air outlet hole III is arranged on the side wall of the lower inner air duct, and the air outlet hole III is connected to the air outlet hole II through a connecting pipe.

[0005] Furthermore, the air-water separation air intake cap is made of aluminum alloy, and the air intake pipe of the air-water separation air intake cap includes a filter screen, a top plate and a bottom plate; the top plate is circular, the bottom plate is annular, the top plate and the bottom plate are coaxially arranged, and the outer circles of the top plate and the bottom plate are connected by a filter screen; an inertial separation device is provided in the air-water separation air intake cap; the mesh holes of the filter screen are air intake holes; and the partition is arranged parallel to the bottom plate.

[0006] Furthermore, the inertial separation device includes multiple outer semicircular tubes and multiple inner semicircular tubes; the two ends of the outer semicircular tube are respectively installed on the top plate and the bottom plate, and the two ends of the inner semicircular tube are respectively installed on the top plate and the bottom plate; the multiple outer semicircular tubes are evenly arranged along the circumferential direction, and the multiple inner semicircular tubes are evenly arranged along the circumferential direction; the two sides of any inner semicircular tube are respectively placed in the two outer semicircular tubes adjacent to it; a semicircular through hole is respectively provided on the bottom plate and the partition corresponding to the inner semicircular tube, and the inner semicircular tube is welded in the semicircular through hole.

[0007] Furthermore, it also includes a sealing bellows sleeve, which is sleeved on the connecting pipe, the upper end of the sealing bellows sleeve is connected to the air intake pipe, and the lower end is fixedly installed on the top of the vehicle body sealing cavity.

[0008] Furthermore, the sealing bellows is a tubular structure made of silicone rubber material, and a plurality of steel rings are arranged on the inner wall of the sealing bellows along the axis of the sealing bellows.

[0009] Furthermore, it also includes a bracket, the bottom of the hydraulic cylinder is installed on the bracket, the bracket is installed in the sealed cavity of the vehicle body, a lower inner air duct is installed on the bracket, and the hydraulic cylinder is located in the lower inner air duct.

[0010] Furthermore, the bracket adopts an aluminum alloy welding structure, and the bracket includes a fixing seat and four legs. The fixing seat is an annular plate structure, and the four legs are installed on the outer circle of the fixing seat. The four legs are evenly arranged along the circumferential direction; a waist-shaped mounting hole is provided at the bottom of the leg.

[0011] Furthermore, the air-water separation air inlet cap, the vehicle body sealing cavity, the upper inner air duct, the lower inner air duct, the hydraulic cylinder and the sealing bellows are coaxially arranged.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets an inertial separation device in the air-water separation air intake cap, increases the air-water separation function, solves the problem that the engine and three-defense devices of amphibious vehicles are prone to water ingress when sailing at high speed, and increases the land primary filtration function, which can effectively prevent the gas filter canister and the boost motor from being easily corroded and damaged, and improves the maintenance cycle of the air filter element to meet the use requirements of the whole vehicle.

[0013] 2. The partition of the present invention realizes the upper and lower layers of the air intake cap for gas-water separation, forming two independent gas channels, so that the three-proof and engine air intake are integrated, reducing the number of air intakes on the top of the amphibious vehicle, which not only reduces the production cost and improves the water safety of the whole vehicle, but also is more conducive to the layout of the whole vehicle and improves the aesthetics of the whole vehicle.

[0014] 3. The present invention uses a partition to separate the air and water, and the air intake cap is layered up and down, forming two independent gas channels, which solves the problem of air snatching caused by the engine intake back pressure far exceeding the three-defense intake back pressure. In addition, the air intake cap can be automatically raised and lowered according to different working conditions on land and water, and uses a cylinder as the lifting power. It moves quickly, has a large thrust, and is stable and reliable. When sailing on water, the air intake cap rises, which can not only reduce the water vapor in the air, but also prevent the engine from getting water when the vehicle swings sideways or hits the head.

[0015] 4. The vehicle body sealed cavity, air-water separation air inlet cap, sealing bellows, upper inner air duct, lower inner air duct and hydraulic cylinder of the present invention are coaxial; the air inlet cap and the inner air duct rise and fall together with the hydraulic cylinder, and the structure is compact; a sealing bellows is added between the air-water separation air inlet cap and the vehicle body sealed cavity, which effectively solves the problems of water leakage due to poor sealing and mutual jamming.

[0016] 5. The present invention can adapt to level 5 wind and level 4 wave at sea. When used in a dusty environment on land, the filter screen and the inertial separation device can filter large particles and some dust. At the same time, it can adapt to the use requirements of an environment of -43 degrees Celsius and can be widely used in structures with air intake requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present invention in a raised state.

[0018] Figure 2 It is a structural diagram of the present invention in the descending state.

[0019] Figure 3 A three-dimensional diagram of the air-water separation air inlet cap of the present invention; Figure 4 It is a cross-sectional view of the air-water separation air inlet cap of the present invention.

[0020] Figure 5 It is a structural diagram of the inertial separation device of the present invention.

[0021] Figure 6 It is a stereoscopic view of the sealing bellows of the present invention.

[0022] Figure 7 It is a three-dimensional diagram of the mounting base of the present invention.

[0023] Figure 8 It is a three-dimensional diagram of the inner airway of the present invention.

[0024] Fig. 9 It is a stereoscopic view of the lower inner airway of the present invention.

[0025] Fig.10 It is a three-dimensional diagram of the bracket of the present invention. DETAILED DESCRIPTION

[0026] The invention will be further described below in conjunction with the accompanying drawings.

[0027] like Figure 1-10 As shown, the present invention comprises an air-water separation air inlet cap 1, a sealing bellows sleeve 2, a mounting base 3, a vehicle body sealing cavity 4, an upper inner air duct 5, a lower inner air duct 6, a hydraulic cylinder 7, a connecting pipe 8, and a bracket 9.

[0028] The air-water separation air inlet cap 1 is mainly made of aluminum alloy material. The air-water separation air inlet cap 1 includes an air inlet pipe and a connecting pipe. A partition 14 is provided in the upper part of the air inlet pipe. The air inlet pipe includes a filter screen 11, a top plate and a bottom plate; the top plate is circular, the bottom plate is annular, the top plate and the bottom plate are coaxially arranged, and the outer circles of the top plate and the bottom plate are connected by the filter screen 11. An inertial separation device 12 is provided in the air-water separation air inlet cap; the mesh of the filter screen 11 is the air inlet hole; the partition 14 is arranged parallel to the bottom plate, and the partition 14 divides the air inlet hole into two parts. An upper inner air duct 5 is provided at the air vent on the bottom surface of the partition 14, and the axis of the upper inner air duct 5 is parallel to the axis of the connecting pipe 13. The upper inner air duct 5 is composed of a plurality of inner air ducts 15 coaxially connected in series, and the opposite ends of two adjacent inner air ducts 15 are connected by a connecting flange 17.

[0029] The inertial separation device 12 includes a plurality of outer semicircular tubes 19 and a plurality of inner semicircular tubes 18; the two ends of the outer semicircular tubes 19 are respectively mounted on the top plate and the bottom plate, and the two ends of the inner semicircular tubes 18 are respectively mounted on the top plate and the bottom plate. The plurality of outer semicircular tubes 19 are evenly arranged along the circumferential direction, and the plurality of inner semicircular tubes 18 are evenly arranged along the circumferential direction, and the inner semicircular tubes 18 are coaxial with the circumference where the outer semicircular tubes 19 are located. The semicircular opening of the cross section of the inner semicircular tube 18 faces outward, and the semicircular opening of the cross section of the outer semicircular tube 19 faces inward, and the two sides of any inner semicircular tube 18 are respectively placed in the two outer semicircular tubes 19 adjacent thereto. A semicircular through hole is respectively provided on the bottom plate and the partition plate 14 corresponding to the inner semicircular tube, and the inner semicircular tube 18 is welded in the semicircular through hole. When working on water, air and water enter the air-water separation air inlet cap 1 from the side, water rushes to the inner wall of the inner semicircular tube 18 of the inertial separation device 12 and flows down along the inner wall, and the air turns into the air duct due to the suction force of the engine and flows to the air filter element.

[0030] The connecting pipe 13 is arranged at the bottom of the air intake pipe, and the lower end of the connecting pipe 13 is inserted into the sealed cavity of the vehicle body and is gap-matched with the upper end of the sealed cavity 4 of the vehicle body. A reinforcing rib 16 is arranged between the connecting pipe 13 and the upper inner air duct 5. The sealing bellows 2 is sleeved on the connecting pipe 13, the upper end of the sealing bellows 2 is connected to the air intake pipe, and the lower end of the sealing bellows 2 is fixedly mounted on the top of the sealed cavity 4 of the vehicle body. The sealing bellows 2 is a tubular structure made of silicone rubber material, and a plurality of steel rings are arranged on the inner wall of the sealing bellows along the axis of the sealing bellows. The sealing bellows 2 has good compressive resilience, excellent wear resistance, and seawater corrosion resistance, and can maintain the problem in the temperature range of -60°C to 200°C. The sealing bellows 2 is connected to the air-water separation air inlet cap 1 and the mounting base 3 respectively by a clamp. The mounting base 3 is fixedly mounted on the top of the vehicle body sealing cavity 4. The sealing bellows 2 can be extended and shortened accordingly according to the rising and falling of the air-water separation air inlet cap 1 to ensure the sealing between the air-water separation air inlet cap 1 and the vehicle body sealing cavity 4.

[0031] The vehicle body sealed cavity is provided with a bracket 9, a hydraulic cylinder 7 and a lower inner air duct 6, and the lower end of the upper inner air duct 5 is gap-matched with the upper end of the lower inner air duct 6. The bracket 9 is installed at the bottom of the vehicle body sealed cavity, and the hydraulic cylinder 7 and the lower inner air duct 6 are installed on the bracket 9. The hydraulic cylinder 7 is located in the lower inner air duct 6 and is coaxial with the lower inner air duct 6. The piston rod end of the hydraulic cylinder 6 is connected to the upper inner air duct 5, which can drive the upper inner air duct 5 to slide along the lower inner air duct 6; thereby realizing the movement of the water separation air intake cap 1. An air outlet hole I41 and an air outlet hole II42 are provided on the side wall of the vehicle body sealed cavity, and an air outlet hole III is provided at the bottom of the side wall of the lower inner air duct, and the air outlet hole III61 is connected to the air outlet hole II42 through a connecting pipe 8. The upper inner air duct 5 and the lower inner air duct 6 are cylindrical structures made of aluminum alloy materials.

[0032] The hydraulic cylinder 7 is a cylindrical metal component that guides the piston to perform linear reciprocating motion in the cylinder. It moves quickly, has large thrust, and is stable and reliable. It can be ordered from the market according to requirements such as thrust and stroke. The hydraulic cylinder 7 adopts a pneumatic cylinder with a maximum working stroke of 400mm and an intake pressure of 1.4Mpa. The bracket 9 adopts an aluminum alloy welding structure. The bracket 9 includes a fixed seat 91 and four legs 92. The fixed seat 91 is an annular plate structure. The four legs 92 are installed on the outer circle of the fixed seat. The four legs 92 are evenly arranged along the circumferential direction; a waist-shaped mounting hole 93 is provided at the bottom of the leg. The waist-shaped mounting hole 93 allows the bracket 9 to be adjusted forward and backward and left and right to ensure the coaxiality of the hydraulic cylinder 7 and the air-water separation air inlet cap.

[0033] When the present invention is used, the air intake pipe of the air-water separation air intake cap 1, the upper inner air duct 5, the lower inner air duct 6 and the connecting pipe 8 together constitute the air intake duct of the three-defense device. The air intake pipe of the air-water separation air intake cap 1, the connecting pipe 13, the vehicle body sealed cavity 4 and the air outlet I41 constitute the engine air intake duct. The air-water separation air intake cap 1, the vehicle body sealed cavity 4, the upper inner air duct 5, the lower inner air duct 6, the hydraulic cylinder 7 and the sealing bellows 2 are coaxially arranged.

Claims

1. A lifting type gas-water separation coaxial air intake device, characterized by: It includes an air-water separation air intake cap, a vehicle body sealing cavity, an upper inner air duct, a lower inner air duct and a hydraulic cylinder; the air-water separation air intake cap includes an air intake pipe and a connecting pipe, and the connecting pipe is arranged at the bottom of the air intake pipe; the lower end of the connecting pipe is inserted into the vehicle body sealing cavity and is gap-matched with the upper port of the vehicle body sealing cavity; a partition is arranged on the upper part of the air intake pipe, and the partition divides the air intake hole of the air intake pipe into two parts; an upper inner air duct is arranged at the air vent on the bottom surface of the partition, and the axis of the upper inner air duct is parallel to the axis of the connecting pipe; a lower inner air duct is arranged in the vehicle body sealing cavity, and the lower end of the upper inner air duct is gap-matched with the upper end of the lower inner air duct; the hydraulic cylinder is installed in the vehicle body sealing cavity, and the piston rod end of the hydraulic cylinder is connected to the upper inner air duct, which can drive the upper inner air duct to slide along the lower inner air duct; an air outlet hole I and an air outlet hole II are arranged on the side wall of the vehicle body sealing cavity, and an air outlet hole III is arranged on the side wall of the lower inner air duct, and the air outlet hole III is connected to the air outlet hole II through a connecting pipe.

2. The lifting type gas-water separation coaxial air intake device according to claim 1 is characterized in that: The air-water separation air inlet cap is made of aluminum alloy, and the air inlet pipe of the air-water separation air inlet cap includes a filter screen, a top plate and a bottom plate; the top plate is circular, the bottom plate is annular, the top plate and the bottom plate are coaxially arranged, and the outer circles of the top plate and the bottom plate are connected by a filter screen; an inertial separation device is arranged in the air-water separation air inlet cap; the mesh holes of the filter screen are air inlet holes; the partition is arranged parallel to the bottom plate.

3. The lifting type gas-water separation coaxial air intake device according to claim 2 is characterized in that: The separation device comprises a plurality of outer semicircular tubes and a plurality of inner semicircular tubes; the two ends of the outer semicircular tubes are respectively mounted on the top plate and the bottom plate, and the two ends of the inner semicircular tubes are respectively mounted on the top plate and the bottom plate; the plurality of outer semicircular tubes are evenly arranged along the circumferential direction, and the plurality of inner semicircular tubes are evenly arranged along the circumferential direction; the two sides of any inner semicircular tube are respectively placed in two outer semicircular tubes adjacent thereto; a semicircular through hole is respectively provided on the bottom plate and the partition plate corresponding to the inner semicircular tube, and the inner semicircular tube is welded in the semicircular through hole.

4. The lifting type gas-water separation coaxial air intake device according to claim 1 is characterized in that: It also includes a sealing bellows sleeve, which is sleeved on the connecting pipe, the upper end of the sealing bellows sleeve is connected to the air intake pipe, and the lower end is fixedly installed on the top of the vehicle body sealing cavity.

5. The lifting type air-water separation coaxial air intake device for an amphibious vehicle according to claim 4 is characterized in that: The sealing bellows is a tubular structure made of silicone rubber material, and a plurality of steel rings are arranged on the inner wall of the sealing bellows along the axis of the sealing bellows.

6. The lifting type gas-water separation coaxial air intake device according to claim 1 is characterized in that: It also includes a bracket, the bottom of the hydraulic cylinder is installed on the bracket, the bracket is installed in the sealed cavity of the vehicle body, a lower inner air duct is installed on the bracket, and the hydraulic cylinder is located in the lower inner air duct.

7. The lifting type gas-water separation coaxial air intake device according to claim 6 is characterized in that: The bracket adopts an aluminum alloy welding structure. The bracket includes a fixing seat and four legs. The fixing seat is an annular plate structure. The four legs are installed on the outer circle of the fixing seat. The four legs are evenly arranged along the circumferential direction; a waist-shaped mounting hole is provided at the bottom of the leg.

8. The lifting type gas-water separation coaxial air intake device according to claim 4 is characterized in that: The air-water separation air inlet cap, the vehicle body sealing cavity, the upper inner air passage, the lower inner air passage, the hydraulic cylinder and the sealing bellows are coaxially arranged.

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