An amphibious vehicle with a water-proof engine

Abstract

The application discloses an amphibious vehicle engine water-proof mechanism, belonging to the field of engine water-proof, which comprises a filtering assembly, a drainage assembly and an exhaust assembly, the filtering assembly comprises an air filter box, a connecting frame is arranged in the air filter box, an air rough filter core is arranged in the connecting frame, a cover plate is connected to the front end of the air filter box, a gravity check valve is arranged at the bottom of the air filter box, an air inlet pipeline is arranged at the upper end of the air filter box, a connecting cover is connected to one end of the air inlet pipeline, and a filter screen is detachably connected to the connecting cover, the filtering assembly cooperates with the drainage assembly and the exhaust assembly, which can not only facilitate the water-proof effect of the amphibious vehicle engine, but also facilitate double drainage operation through the air filter box, the gravity check valve and the drain pipe, so that the water-proof effect of the water-proof mechanism can be significantly improved, the practicality of the water-proof mechanism can be improved, and the amphibious vehicle engine can be prevented from being flooded.

Description

TECHNICAL FIELD

[0001] The application relates to the field of engine waterproofing, in particular to an amphibious vehicle engine water-proofing mechanism. BACKGROUND

[0002] With the development of amphibious vehicle technology, the waterproof performance of the engine has become one of the key factors to ensure the safe operation of the vehicle. The amphibious vehicle, also known as an amphibious vehicle or an amphibious vehicle, is a special vehicle that can travel on land and water. It combines the design features of cars and ships, has high flexibility and adaptability, and is widely used in many fields, including military, rescue, patrol, detection, etc. For example, in the case of flood control and disaster relief, emergency rescue, disaster relief, power engineering rescue, etc., amphibious vehicles can quickly reach the scene and provide effective rescue and support. In addition, it can also be used in scenic sightseeing, exploration and other civilian fields. As a special vehicle that can travel on water and land, amphibious vehicles have unique application value in military, rescue, scientific exploration and leisure fields. With the development of technology and the growth of application demand, the performance requirements of amphibious vehicles are becoming higher and higher, especially in complex environments. The reliability and safety. The engine, as the power source of the amphibious vehicle, maintains good waterproof performance during vehicle travel, which is the key to ensuring its safe and reliable operation. The amphibious vehicle engine water-proofing mechanism is designed to ensure the safe operation of the engine in various environments. The existing waterproof mechanism is simple, so the waterproof effect of the engine is not enough. Therefore, it is necessary to provide a waterproof mechanism that can significantly improve the waterproof effect and enhance the practicability. In addition, the overall protection effect of the existing waterproof mechanism is not enough when installing, so it is necessary to provide a waterproof mechanism that can significantly improve the overall protection effect and prolong the service life. SUMMARY

[0003] The embodiment of the application provides an amphibious vehicle engine water-proofing mechanism, which aims to solve the problem that the existing waterproof mechanism is not convenient for multiple waterproofing and drainage operations

[0004] To achieve the above-mentioned purpose, the application provides an amphibious vehicle engine water-proofing mechanism, which comprises a filtering assembly, a drainage assembly and an exhaust assembly.

[0005] The filter assembly comprises an air filter tank, a connecting frame is arranged in the air filter tank, an air rough filter core is arranged in the connecting frame, a tank cover plate is connected to the front end of the air filter tank, a gravity check valve is arranged at the bottom of the air filter tank, an air inlet pipeline is arranged at the upper end of the air filter tank, a connecting cover is connected to one end of the air inlet pipeline, a filter screen is detachably connected to the connecting cover, and three vertical beams are equidistantly arranged in the connecting frame.

[0006] The drainage assembly comprises a first elbow connected with the tank cover plate, a drainage pipe and a second elbow, one end of the drainage pipe is connected with a connecting head, a drainage opening is arranged at the lower end of the drainage pipe, a valve plate, two rubber sealing rings and a clasp arranged between the two rubber sealing rings are arranged in the drainage pipe, a micro motor is arranged on one side of the drainage pipe, a motor shell is arranged on the surface of the micro motor, an outer shell is arranged at the lower end of the drainage pipe, a water immersion sensor is arranged in the outer shell, a sensing wire is connected to one side of the water immersion sensor, a rotary knob is connected to the surface of the water immersion sensor, a valve cover is rotatably connected to the lower end of the drainage opening, and a torsional spring is arranged at the lower end of the valve cover.

[0007] The exhaust assembly comprises a third elbow connected with the second elbow, a first straight pipe is connected to the end of the third elbow away from the second elbow, a fourth elbow is detachably connected to one end of the first straight pipe, a fifth elbow is detachably connected to one end of the fourth elbow, and a plurality of second straight pipes are detachably connected to one end of the fifth elbow.

[0008] As a preferred scheme of the present application, the gravity check valve comprises a valve body, a valve rod is rotatably connected to the inside of the valve body, and a left valve plate and a right valve plate are rotatably connected to the side surface of the valve rod.

[0009] As a preferred scheme of the present application, two clamping grooves are arranged on the two sides of the air filter tank, two clamping blocks are fixedly connected to the two sides of the tank cover plate, and the two clamping blocks are clamped in the clamping grooves.

[0010] As a preferred scheme of the present application, a plurality of positioning grooves are arranged on the two sides of the inner wall of the air filter tank, and a plurality of positioning pieces are fixedly connected to the two sides of the connecting frame, and the positioning pieces are clamped in the positioning grooves.

[0011] As a preferred scheme of the present application, a plurality of sliding grooves are arranged at the bottom of the air filter tank, a plurality of sliding blocks are fixedly connected to the lower end of the connecting frame, the sliding blocks are clamped in the sliding grooves, a connecting flange is arranged at the upper end of the air filter tank, and the connecting cover is sealingly connected to the air filter tank through the connecting flange.

[0012] As a preferred scheme of the present application, the inner wall of the connecting cover is fixedly connected with two plug-in strips on both sides, both ends of the filter screen are provided with two plug-in slots, and the two plug-in strips are plugged into the plug-in slots.

[0013] As a preferred scheme of the present application, the lower surface of the air filter box is provided with a receiving plate at both ends, the upper end of the receiving plate is fixedly connected with a limiting plate, the lower end of the receiving plate is fixedly connected with a stabilizing plate, the opposite surfaces of the receiving plate and the stabilizing plate are provided with two mounting holes, the inside of the two mounting holes is mounted with a buffer spring, and the inside of the buffer spring is mounted with a damper.

[0014] As a preferred scheme of the present application, the side of the valve rod of the receiving plate is provided with a pin hole at one end, and the inside of the pin hole is plugged with a pin rod.

[0015] As a preferred scheme of the present application, the inside of the mounting hole is provided with a first screw hole, the upper and lower ends of the buffer spring are fixedly connected with a first bolt, and the first bolt is screwed into the inside of the first screw hole.

[0016] As a preferred scheme of the present application, the lower end of the drain pipe is fixedly connected with a connecting seat, the shell and the connecting seat are clamped with each other, one side of the drain pipe is fixedly connected with a receiving piece, the upper end of the receiving piece is fixedly connected with a plurality of guide bars, the lower end of the motor shell is provided with a plurality of guide grooves, a plurality of the guide bars are slidingly connected into the inside of the guide grooves, the two sides of the valve piece are fixedly connected with a connecting shaft, one end of the two connecting shafts is provided with a limiting hole, the output end of the micro motor is connected with a limiting shaft, the limiting shaft is plugged into the inside of the limiting hole, the lower end of the drain pipe is fixedly connected with a hinged block, one side of the valve cover is fixedly connected with a hinge shaft, and the hinge shaft is hinged into the inside of the hinged block.

[0017] As a preferred scheme of the present application, the front end of the fifth elbow pipe is fixedly connected with a clamping head, one end of the second straight pipe is clamped into the inside of the clamping head, a plurality of the second straight pipes are respectively mounted with a filter core, a ventilation fan and a fixing frame in the inside, the lower end of a plurality of the second straight pipes is mounted with a base, the upper end of the base is fixedly connected with a support, the upper end of the support is provided with an arc-shaped slot, the upper end of the support is detachably connected with an arc-shaped piece, the surfaces of the support and the arc-shaped piece are provided with two second screw holes, the inside of the two second screw holes is screwed with a second bolt, the upper end of the arc-shaped piece is fixedly connected with a spiral pipe, and the inside of the spiral pipe is screwed with a third bolt.

[0018] As a preferred scheme of the present application, the side surfaces of the first elbow pipe, the drain pipe, the second elbow pipe, the third elbow pipe, the first straight pipe, the fourth elbow pipe, the fifth elbow pipe and the second straight pipe are all clamped with a clamp, the upper end of the clamp is provided with two fourth screw holes, the inside of the two fourth screw holes is threadedly connected with a fourth bolt, one end of the fourth bolt is threadedly connected with a fourth nut.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. In use, the waterproof mechanism is installed on the amphibious vehicle, the air inlet is designed behind the front windshield away from the water surface to minimize the direct entry of water splashes, waves or rain, and a gravity check valve is arranged at the bottom of the air cleaner, when water enters the air inlet, the left and right valve plates in the gravity check valve rotate and fold along the valve rod, so that air can be discharged from the gravity check valve at the bottom of the air cleaner, when the drain hole at the bottom of the air cleaner is blocked or damaged, causing water accumulation, to prevent water from entering the engine, a water inlet prevention mechanism is arranged at the air inlet of the drain pipe at the rear of the air cleaner, when the water in the pipe exceeds the sensing line, the water immersion sensor senses the water and sends a signal to the vehicle computer, the vehicle computer drives the micro motor to rotate, at the same time, the air inlet is closed, and the bottom water is opened by gravity to discharge the water outside the vehicle to control the engine to stop, when the water in the pipe is lower than the sensing line, the water immersion sensor detects that the water has been discharged, the air inlet is opened and the drain hole is closed to start the engine, compared with the waterproof mechanism in the prior art, the above-mentioned structure can not only achieve the waterproof effect, but also achieve double drainage operation, thereby significantly improving the waterproof performance of the waterproof mechanism, and enhancing the practicability of the waterproof mechanism, avoiding water entering the engine of the amphibious vehicle.

[0021] 2. In use, the filter element in the second straight pipe can filter the air to prevent the second straight pipe from being blocked, when the air cleaner is installed in the amphibious vehicle, the two receiving plates at the bottom of the air cleaner cooperate with the limiting plate to achieve the limiting effect, when the air cleaner is pressed down, the receiving plate and the stabilizing plate are deformed under stress and extrude the buffer spring and the damper, the buffer spring and the damper can achieve the damping effect on the air cleaner, in addition, the second straight pipes are arranged in the arc-shaped grooves of the supports, and the arc-shaped pieces cooperate with the supports to clamp and fix the second straight pipes, then the second bolts are screwed into the inner tubes to extrude and fix the second straight pipes, the base and the support can achieve the buffering protection effect on the second straight pipes, compared with the waterproof mechanism in the prior art, the above-mentioned structure can significantly improve the damping and buffering effect of the waterproof mechanism, thereby prolonging the service life of the waterproof mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The overall structure of the present application is shown in the figure;

[0023] Figure 2 The structure of the filter assembly of the present application is shown in the figure;

[0024] Figure 3 The structure of the air filter box of the present application is shown in the figure;

[0025] Figure 4 The structure of the gravity check valve of the present application is shown in the figure;

[0026] Figure 5 The structure of the air inlet pipeline of the present application is shown in the figure;

[0027] Figure 6 The structure of the air rough filter element of the present application is shown in the figure;

[0028] Figure 7 The structure of the damping mechanism of the present application is shown in the figure;

[0029] Figure 8 The structure of the pipeline of the present application is shown in the figure;

[0030] Figure 9 The structure of the drain pipe of the present application is shown in the figure;

[0031] Figure 10 The structure of the drain assembly of the present application is shown in the figure;

[0032] Figure 11 The structure of the lower part of the drain assembly of the present application is shown in the figure;

[0033] Figure 12 The structure of the exhaust assembly of the present application is shown in the figure;

[0034] Figure 13 The structure of the filter element of the present application is shown in the figure;

[0035] Figure 14 The structure of the support of the present application is shown in the figure;

[0036] Figure 15 The structure of the clamp of the present application is shown in the figure;

[0037] Figure 16 The size of the pipeline of the present application is shown in the figure;

[0038] Figure 17 The size of the air inlet of the present application is shown in the figure.

[0039] In the figure: 100, filter assembly; 101, air filter box; 102, connecting frame; 103, air rough filter element; 104, box cover plate; 105, gravity check valve; 106, air inlet pipeline; 107, connecting cover; 108, filter screen; 109, vertical beam; 1051, valve body; 1052, valve rod; 1053, left valve plate; 1054, right valve plate; 111, clamping groove; 112, clamping block; 121, positioning groove; 122, positioning plate; 131, sliding groove; 132, sliding block; 133, connecting flange; 141, insertion strip; 142, insertion groove; 151, bearing plate; 152, limiting plate; 153, stabilizing plate; 154, mounting hole; 155, buffer spring; 156, damper; 10511, pin hole; 10512, pin rod; 1511, first bolt; 1512, first screw hole; 200, drainage assembly; 201, first elbow; 202, drain pipe; 203, second elbow; 204, connecting head; 205, drain port; 206, valve plate; 207, rubber sealing ring; 208, clasp; 209, micro motor; 210, motor shell; 220, shell; 230, water immersion sensor; 240, induction wire; 250, knob; 260, valve cover; 270, torsional spring; 211, connecting seat; 221, bearing plate; 222, guide bar; 223, guide groove; 231, connecting shaft; 232, limiting hole; 233, limiting shaft; 241, hinged block; 242, hinged shaft; 301, exhaust assembly; 301, third elbow; 302, first straight pipe; 303, fourth elbow; 304, fifth elbow; 305, second straight pipe; 311, clamping head; 312, filter element; 313, air fan; 314, fixing frame; 321, base; 322, support; 323, arc-shaped groove; 324, arc-shaped plate; 325, second screw hole; 326, second bolt; 327, screw pipe; 328, third bolt; 331, clamp; 332, fourth screw hole; 333, fourth bolt; 334, fourth nut. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] Please refer to Figures 1-15 The present application provides a water-proof mechanism for amphibious vehicle, which comprises a filter assembly 100, a drainage assembly 200 and an exhaust assembly 300.

[0042] The filter assembly 100 comprises an air filter tank 101, a connecting frame 102 is installed in the air filter tank 101, an air rough filter core 103 is embedded in the connecting frame 102, a tank cover plate 104 is connected to the front end of the air filter tank 101, a gravity check valve 105 is installed at the bottom of the air filter tank 101, an air inlet pipeline 106 is installed at the upper end of the air filter tank 101, a connecting cover 107 is connected to one end of the air inlet pipeline 106, a filter screen 108 is detachably connected in the connecting cover 107, and three vertical beams 109 are equidistantly installed in the connecting frame 102.

[0043] The drainage assembly 200 comprises a first elbow pipe 201 connected with the tank cover plate 104, a drainage pipe 202 and a second elbow pipe 203, the drainage pipe 202 is connected with a connecting head 204 at one end, the lower end of the drainage pipe 202 is provided with a drainage port 205, the inner part of the drainage pipe 202 is respectively provided with a valve piece 206, two rubber sealing rings 207 and a clasp ring 208 installed between the two rubber sealing rings 207, a micro motor 209 is installed on one side of the drainage pipe 202, the surface of the micro motor 209 is sleeved with a motor shell 210, an outer shell 220 is installed at the lower end of the drainage pipe 202, a water immersion sensor 230 is installed in the outer shell 220, an induction line 240 is connected to one side of the water immersion sensor 230, a rotary knob 250 is connected to the surface of the water immersion sensor 230, the lower end of the drainage port 205 is rotatably connected with a valve cover 260, and a torsional spring 270 is installed at the lower end of the valve cover 260.

[0044] The exhaust assembly 300 comprises a third elbow pipe 301 connected with the second elbow pipe 203, a first straight pipe 302 is connected to the end of the third elbow pipe 301 away from the second elbow pipe 203, a fourth elbow pipe 303 is detachably connected to one end of the first straight pipe 302, a fifth elbow pipe 304 is detachably connected to one end of the fourth elbow pipe 303, and a plurality of second straight pipes 305 are detachably connected to one end of the fifth elbow pipe 304.

[0045] In a specific embodiment, the filter assembly 100 cooperates with the drainage assembly 200 and the exhaust assembly 300 to not only facilitate the waterproofing of the amphibious vehicle engine, but also facilitate double drainage through the air filter box 101, the gravity check valve 105, and the drain pipe 202, thereby significantly enhancing the waterproofing effect of the waterproofing mechanism and enhancing the practicality of the waterproofing mechanism, avoiding water entering the amphibious vehicle engine. When in use, the waterproofing mechanism is installed on the upper end of the amphibious vehicle, and the position of the air intake pipe 106 is designed behind the front windshield glass away from the water surface, so as to minimize the direct entry of water splashes, waves or rain. When water enters the air intake pipe 106, the left valve plate 1053 and the right valve plate 1054 in the gravity check valve 105 at the bottom of the air filter box 101 rotate and fold along the valve rod 1052, thereby allowing air to be discharged from the gravity check valve 105 at the bottom of the air filter box 101. When the drain hole at the bottom of the air filter box 101 is blocked or damaged, causing water accumulation to be discharged, the air intake pipe 106 is arranged at the drain pipe 202 at the rear of the air filter box 101. When the water in the air intake pipe 106 exceeds the sensing line 240, the water immersion sensor 230 senses the water and sends a signal to the engine intake system water warning system of the vehicle computer, which drives the micro motor 209 to rotate and closes the air intake passage, causing the bottom water to be discharged to the outside of the vehicle through the gravity-acting control valve cover 260 opening the protective shell. The above structure can significantly improve the waterproofing and drainage performance of the waterproofing mechanism, thereby enhancing the practicality of the waterproofing mechanism.

[0046] Supplementary notes:

[0047] To calculate the area of the intake port of a V6 rotary valve engine cylinder, the number of cylinders, the number of valves, and the valve diameter need to be considered. Typically, a V6 engine has two intake valves and two exhaust valves per cylinder. The valve diameter refers to the diameter of the valve, usually in millimeters. To calculate the total area of the intake port, the following formula can be used:

[0048]

[0049] Where:

[0050] (1) The number of cylinders refers to the number of cylinders in the engine, which is typically 6 for a V6 engine.

[0051] (2) The number of intake valves per cylinder is typically 2, as each cylinder usually has two intake valves.

[0052] (3) is the circumference, approximately 3.14159.

[0053] (4) The valve diameter refers to the diameter of the intake valve, in millimeters.

[0054] Substitute data can be obtained

[0055] The formula for calculating the cross-sectional area of the intake pipe is:

[0056] A = π (D / 2) 2 mm 2 (3-2)

[0057] Substitute data can be obtained The cross-sectional area of the intake pipe is 9852.03mm 2 .

[0058] The formula for calculating the cross-sectional area of the intake pipe is:

[0059] A = l x w (3-3)

[0060] Substitute data can be obtained The cross-sectional area of the intake pipe is 19140mm 2 .

[0061] The above calculations show that the cross-sectional area of the intake pipe is greater than the cross-sectional area of the intake pipe, and the total area of the intake valve is greater than the cross-sectional area of the intake pipe, which proves that the size of the pipe is selected, and the size of the pipe is shown in Figure 16 and Figure 17 .

[0062] Please refer to Figures 2-7 , the gravity check valve 105 includes a valve body 1051, the valve body 1051 is rotatably connected with a valve stem 1052, the side surface of the valve stem 1052 is rotatably connected with a left valve plate 1053 and a right valve plate 1054 respectively.

[0063] In a specific embodiment, when the left valve plate 1053 and the right valve plate 1054 rotate around the valve stem 1052 to fold, the valve body 1051 is connected, so that the drainage operation can be carried out.

[0064] Please refer to Figures 2-7 , the air filter tank 101 is provided with two clamping grooves 111 on both sides, and the two clamping grooves 111 are clamped in the clamping grooves 111.

[0065] In a specific embodiment, the clamping block 112 is clamped in the clamping groove 111, which can improve the disassembly convenience between the tank cover plate 104 and the air filter tank 101.

[0066] Please refer to Figures 2-7 , the inner wall of the air filter tank 101 is provided with a plurality of positioning grooves 121 on both sides, and the two sides of the connecting frame 102 are fixedly connected with a plurality of positioning pieces 122, and the plurality of positioning pieces 122 are clamped in the positioning grooves 121.

[0067] In a specific embodiment, the positioning piece 122 is clamped in the positioning groove 121, which can preliminarily improve the stability of the installation of the connecting frame 102 and the air rough filter element 103 in the air filter box 101.

[0068] Please refer to Figures 2-7 The bottom of the air filter box 101 is provided with a plurality of sliding grooves 131, and the lower end of the connecting frame 102 is fixedly connected with a plurality of sliding blocks 132, which are clamped in the sliding grooves 131. The upper end of the air filter box 101 is provided with a connecting flange 133, and the connecting cover 107 is sealingly connected with the air filter box 101 through the connecting flange 133.

[0069] In a specific embodiment, the sliding block 132 is clamped in the sliding groove 131, which can further improve the installation stability of the connecting frame 102.

[0070] Please refer to Figures 2-7 The inner walls of the connecting cover 107 are fixedly connected with two insertion strips 141 on both sides, and the two ends of the filter screen 108 are provided with two insertion grooves 142, and the two insertion strips 141 are inserted in the insertion grooves 142.

[0071] In a specific embodiment, the insertion strip 141 is inserted in the insertion groove 142, which can improve the fastening of the filter screen 108 installed in the connecting cover 107, and facilitate disassembly according to needs.

[0072] Please refer to Figures 2-7 The lower surface of the air filter box 101 is provided with a receiving plate 151 at both ends, the upper end of the receiving plate 151 is fixedly connected with a limiting plate 152, the lower end of the receiving plate 151 is fixedly connected with a stabilizing plate 153, the opposite surfaces of the receiving plate 151 and the stabilizing plate 153 are provided with two mounting holes 154, the inside of the two mounting holes 154 is provided with a buffer spring 155, and the inside of the buffer spring 155 is provided with a damper 156.

[0073] In a specific embodiment, when the air filter box 101 is forced to press down the receiving plate 151 and the stabilizing plate 153, the existence of the buffer spring 155 cooperates with the damper 156 to play a damping effect, which enhances the protection effect of the air filter box 101.

[0074] Please refer to Figures 2-7 The side of the receiving plate 151 is provided with a pin hole 10511 at one end of the valve rod 1052, and the inside of the pin hole 10511 is inserted with a pin rod 10512.

[0075] In a specific embodiment, the pin rod 10512 is inserted in the pin hole 10511, which can improve the disassembly convenience between the valve rod 1052 and the valve body 1051.

[0076] Please refer to Figures 2-7 The inside of the mounting hole 154 is provided with a first threaded hole 1512, and the upper and lower ends of the buffer spring 155 are fixedly connected with first bolts 1511 which are threadedly connected in the inside of the first threaded hole 1512.

[0077] In a specific embodiment, the threaded connection of the first bolts 1511 in the inside of the first threaded hole 1512 can enhance the mounting fastening between the buffer spring 155, the receiving plate 151 and the stabilizing plate 153.

[0078] Please refer to Figures 8-11 The lower end of the drain pipe 202 is fixedly connected with a connecting seat 211, the shell 220 and the connecting seat 211 are mutually clamped, one side of the drain pipe 202 is fixedly connected with a receiving sheet 221, the upper end of the receiving sheet 221 is fixedly connected with a plurality of guide bars 222, the lower end of the motor shell 210 is provided with a plurality of guide grooves 223, the plurality of guide bars 222 are all slidably connected in the inside of the guide grooves 223, the two sides of the valve sheet 206 are both fixedly connected with connecting shafts 231, one end of the two connecting shafts 231 is provided with a limiting hole 232, the output ends of the micro motors 209 are all connected with limiting shafts 233, the limiting shafts 233 are inserted in the inside of the limiting holes 232, the lower end of the drain pipe 202 is fixedly connected with a hinged block 241, one side of the valve cover 260 is fixedly connected with a hinged shaft 242, the hinged shaft 242 is hinged in the inside of the hinged block 241.

[0079] In a specific embodiment, the sliding connection of the guide bars 222 in the inside of the guide grooves 223 can improve the installation convenience of the micro motor 209 and the drain pipe 202, the insertion of the limiting shafts 233 in the inside of the limiting holes 232 can make the valve cover 260 rotate when the micro motor 209 rotates with the limiting shafts 233, so as to open the drain port 205 and further achieve the drainage effect, and the hinging of the hinged shaft 242 in the inside of the hinged block 241 can improve the fluency when the valve cover 260 rotates.

[0080] Please refer to Figures 9-15 The front end of the fifth elbow pipe 304 is fixedly connected with a clamping head 311, one end of the second straight pipe 305 is clamped in the inside of the clamping head 311, the inside of the plurality of second straight pipes 305 is respectively provided with a filter element 312, a ventilation fan 313 and a fixing frame 314, the lower end of the plurality of second straight pipes 305 is provided with a base 321, the upper end of the base 321 is fixedly connected with a support 322, the upper end of the support 322 is provided with an arc-shaped groove 323, the upper end of the support 322 is detachably connected with an arc-shaped sheet 324, the surfaces of the support 322 and the arc-shaped sheet 324 are both provided with two second threaded holes 325, the inside of the two second threaded holes 325 are both threadedly connected with second bolts 326, the upper end of the arc-shaped sheet 324 is fixedly connected with a spiral pipe 327, and the inside of the spiral pipe 327 is threadedly connected with a third bolt 328.

[0081] In a specific embodiment, the presence of the filter element 312 can filter impurities in the air and water, preventing the internal part of the waterproof mechanism from being blocked, and the air fan 313 can further play a role in exhaust effect. The support 322 cooperates with the base 321 to buffer and protect the second straight pipe 305, prolonging the service life of the waterproof mechanism. By screwing the second bolt 326 into the spiral pipe 327, the second straight pipe 305 can be tightly fixed, thereby improving the connection and fastening between the support 322 and the second straight pipe 305.

[0082] Please refer to Figures 8-15 The side surfaces of the first elbow pipe 201, the drain pipe 202, the second elbow pipe 203, the third elbow pipe 301, the first straight pipe 302, the fourth elbow pipe 303, the fifth elbow pipe 304, and the second straight pipe 305 are clamped with the clamp 331. Two fourth screw holes 332 are formed in the upper end of the clamp 331, and a fourth bolt 333 is threadedly connected in the two fourth screw holes 332. One end of the fourth bolt 333 is threadedly connected with a fourth nut 334.

[0083] In a specific embodiment, the first elbow pipe 201, the drain pipe 202, the second elbow pipe 203, the third elbow pipe 301, the first straight pipe 302, the fourth elbow pipe 303, the fifth elbow pipe 304, and the second straight pipe 305 are threadedly connected by the clamp 331, which can enhance the disassembly and assembly convenience of the waterproof mechanism.

[0084] Working principle: when in use, the waterproof mechanism is installed on the amphibious vehicle, and the position of the air inlet pipe 106 is designed behind the front windshield glass away from the water surface to minimize the direct entry of water splashes, waves or rain. The gravity check valve 105 provided at the bottom of the air cleaner box 101, when water enters the air inlet pipe 106, the left valve plate 1053 and the right valve plate 1054 in the gravity check valve 105 rotate and fold along the valve rod 1052 to allow air to be discharged from the gravity check valve 105 at the bottom of the air cleaner box 101. When the drain hole at the bottom of the air cleaner box 101 is blocked or damaged, causing water accumulation to be discharged, the air inlet pipe 106 is arranged at the drain pipe 202 at the rear of the air cleaner box 101. When the water in the air inlet pipe 106 exceeds the sensing line 240, the water immersion sensor 230 senses the water and sends a signal to the engine intake system water warning system of the vehicle computer. The vehicle computer drives the micro motor 209 to rotate, and at the same time closes the air inlet passage, causing the bottom water to be controlled by the valve cover 260 to open the protective shell and discharge the water outside the vehicle. The above structure can significantly improve the waterproof and drainage performance of the waterproof mechanism, thereby enhancing the practicability of the waterproof mechanism and preventing the amphibious vehicle engine from being flooded.

[0085] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0086] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An amphibious vehicle engine water ingress prevention mechanism, characterized by, The utility model relates to an air filter device, including: The filter assembly (100) includes air filter box (101), the inside mounting of air filter box (101) is connected frame (102), the inside of connected frame (102) is embedded air rough filter core (103), the front end of air filter box (101) is connected with tank cover plate (104), the bottom of air filter box (101) is installed gravity check valve (105), the upper end of air filter box (101) is installed air inlet pipeline (106), one end of air inlet pipeline (106) is connected with connecting cover (107), the inside of connecting cover (107) is detachably connected with filter screen (108), the inside of connected frame (102) is installed three vertical beams (109) equidistantly; The drainage assembly (200) includes the first elbow pipe (201) of tank cover plate (104) connection, drain pipe (202) and second elbow pipe (203), one end of drain pipe (202) is connected with connector (204), the lower end of drain pipe (202) is provided with drain (205), the inside of drain pipe (202) is installed respectively valve piece (206), two rubber sealing rings (207) and the snap ring (208) installed between two rubber sealing rings (207), one side of drain pipe (202) is installed micro motor (209), the surface of micro motor (209) is covered with motor shell (210), the lower end of drain pipe (202) is installed shell (220), the inside of shell (220) is installed water immersion sensor (230), one side of water immersion sensor (230) is connected with induction line (240), the surface of water immersion sensor (230) is connected with knob (250), the lower end of drain (205) is rotatably connected with valve cover (260), the lower end of valve cover (260) is installed torsional spring (270); The exhaust assembly (300) includes the third elbow pipe (301) of second elbow pipe (203) connection, one end of third elbow pipe (301) away from second elbow pipe (203) is connected with first straight pipe (302), one end of first straight pipe (302) is detachably connected with fourth elbow pipe (303), one end of fourth elbow pipe (303) is detachably connected with fifth elbow pipe (304), one end of fifth elbow pipe (304) is detachably connected with a plurality of second straight pipes (305), the inside of second straight pipe (305) is installed filter core (312), ventilation fan (313) and fixing frame (314) respectively. The lower end of the drain pipe (202) is fixedly connected with a connecting seat (211), the shell (220) and the connecting seat (211) are clamped with each other, one side of the drain pipe (202) is fixedly connected with a bearing piece (221), the upper end of the bearing piece (221) is fixedly connected with a plurality of guide bars (222), the lower end of the motor shell (210) is provided with a plurality of guide grooves (223), and the plurality of guide bars (222) are all connected in the guide grooves (223) in a sliding mode, both sides of the valve piece (206) are fixedly connected with connecting shafts (231), one end of the two connecting shafts (231) is provided with a limiting hole (232), the output end of the micro motor (209) is connected with a limiting shaft (233), and the limiting shaft (233) is inserted into the limiting hole (232) in a plug-in mode, the lower end of the drain pipe (202) is fixedly connected with a hinged block (241), one side of the valve cover (260) is fixedly connected with a hinged shaft (242), and the hinged shaft (242) is hinged in the hinged block (241).

2. The amphibious vehicle anti-water-inlet mechanism according to claim 1, characterized in that: The gravity check valve (105) comprises a valve body (1051), a valve rod (1052) is rotatably connected in the valve body (1051), and a left valve piece (1053) and a right valve piece (1054) are rotatably connected to the side surface of the valve rod (1052) respectively.

3. The amphibious vehicle anti-water-inlet mechanism according to claim 1, characterized in that: Both sides of the air filter box (101) are provided with two clamping grooves (111), both sides of the box cover plate (104) are fixedly connected with two clamping blocks (112), and the two clamping blocks (112) are clamped in the clamping grooves (111).

4. The amphibious vehicle anti-water-inlet mechanism according to claim 1, characterized in that: The inner walls of the air filter box (101) are provided with a plurality of positioning grooves (121) on both sides, and the two sides of the connecting frame (102) are fixedly connected with a plurality of positioning pieces (122).

5. The amphibious vehicle anti-water-inlet mechanism according to claim 1, characterized in that: The bottom of the air filter box (101) is provided with a plurality of sliding grooves (131), the lower end of the connecting frame (102) is fixedly connected with a plurality of sliding blocks (132), and the plurality of sliding blocks (132) are clamped in the sliding grooves (131).

6. The amphibious vehicle anti-water-inlet mechanism according to claim 1, characterized in that: Both sides of the inner wall of the connecting cover (107) are fixedly connected with two plug-in strips (141), both ends of the filter screen (108) are provided with two plug-in grooves (142), and the two plug-in strips (141) are inserted into the plug-in grooves (142).

7. The amphibious vehicle anti-water-inlet mechanism according to claim 1, characterized in that: The lower surface of the air filter box (101) is provided with receiving plates (151) at both ends, the upper end of the receiving plate (151) is fixedly connected with a limiting plate (152), the lower end of the receiving plate (151) is fixedly connected with a stabilizing plate (153), the opposite surfaces of the receiving plate (151) and the stabilizing plate (153) are both provided with two mounting holes (154), the inside of the two mounting holes (154) are both provided with buffer springs (155), and the inside of the buffer spring (155) is provided with a damper (156).

8. The amphibious vehicle anti-water-inlet mechanism according to claim 7, characterized in that: The side of the receiving plate (151) is provided with pin holes (10511) at one end of the valve rod (1052), and the inside of the pin hole (10511) is inserted with a pin rod (10512).

9. The amphibious vehicle anti-water-inlet mechanism according to claim 8, characterized in that: The inside of the mounting hole (154) is provided with a first screw hole (1511), and the upper and lower ends of the buffer spring (155) are both fixedly connected with a first bolt (1512), and the first bolt (1512) is screwed in the inside of the first screw hole (1511).

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