Noise reduction and ventilation device for power supply vehicle

Abstract

The invention discloses a noise reduction and ventilation device for a power van, and relates to the technical field of power van, the noise reduction and ventilation device comprises a rotating block, a rotating plate and a transmission rod, by arranging a buffer mechanism, a connecting part and an elastic assembly, vibration generated during operation of an engine is buffered, and by arranging a turnover mechanism, a rotating part, a transmission part and a fixing assembly, the noise reduction and ventilation device is convenient to use. An overturning motor is started to drive an overturning shaft to rotate, so that a rotating block moves in the direction away from a first overturning block, the rotating block is driven to slide on a first rotating rod and a second rotating rod, a transmission rod drives a first transmission plate to rotate, a second transmission plate is driven to move, and a fixing plate is driven to rotate; according to the power van, the filter screen is covered, by arranging the buffer mechanism and the turnover mechanism, noise transmission is reduced, the situation that operation is affected by too large noise is avoided, and the situation that parts in the power van are damaged due to the fact that the filter screen is blocked and the ventilation effect of the filter screen is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of power supply vehicles, and in particular to a noise reduction and ventilation device for a power supply vehicle. Background Art

[0002] The power supply vehicle is a special vehicle equipped with a generator to provide power supply. The power supply vehicle uses an engine with non-electric start and air as the cooling medium, which not only eliminates the trouble of maintaining batteries and bellows water tanks and filling coolant, but also can work in harsh environments such as extremely high temperatures, low temperatures, and dust. The power supply vehicle should have good off-road performance and adaptability to various road surfaces, and be suitable for all-weather outdoor operations. It has the characteristics of stable and reliable overall performance, simple operation, low noise, good emissions, and good maintainability, and can well meet the needs of outdoor operations and emergency power supply. The silencer is a component that allows airflow to pass and can prevent or reduce the propagation of sound. It is an important device for eliminating aerodynamic noise. The Helmholtz silencer has a simple structure, a relatively good silencing function, and low pressure loss.

[0003] Some existing power supply vehicles are used as emergency vehicles, especially in the desert. Some vehicles driving in the desert are prone to sinking into sand pits when driving, which will cause the vehicles to be unable to drive. At this time, emergency power supply vehicles are needed to cooperate with relevant tools to operate. When the existing desert emergency power supply vehicles are in use, multiple layers of filters are set at the vents to prevent external wind and sand from entering the vehicle and ensure the normal operation of the internal parts of the vehicle. However, in the desert, the wind and sand are relatively strong. When encountering strong winds, the wind and sand will move with the influence of the wind, so that the filter of the desert emergency vehicle will be adhered to a large amount of sand, which will affect the power supply vehicle During use, the ventilation effect is poor, which will cause the temperature inside the vehicle to be high during operation, easily causing damage to parts, thus affecting the rescue mission. In addition, most power supply vehicles use diesel engines to generate electricity, which leads to the power supply vehicle generating a lot of noise when in operation. Existing power supply vehicles will have measures such as sound-absorbing cotton pasted on the inner wall of the vehicle to prevent excessive noise. However, when the diesel engine is running, the engine itself will vibrate, and the vibration will be transmitted to the vehicle, causing the vehicle to vibrate. This will cause the vehicle to shake and rub against the ground, generating noise, which will affect the rescue operation, so improvements are needed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a noise reduction and ventilation device for a power vehicle, aiming to solve the above-mentioned technical problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A noise reduction and ventilation device for a power vehicle, comprising a box body and a support plate, wherein the support plate is slidably connected to the box body; and further comprising: A filter tank is provided on the box body; A filter screen is disposed in the filter tank and fixedly connected to the filter tank; An oil storage tank is disposed on the support plate and fixedly connected to the support plate; An engine box is disposed on the support plate and fixedly connected to the support plate; A refueling port, provided on the box body; A refueling pipe, disposed in the refueling port, fixedly connected to the refueling port and fixedly connected to the oil storage tank; An electrical connection pipe is arranged on the engine box and is fixedly connected to the engine box and the box body; A telescopic slot is provided on the box body; A telescopic plate is arranged in the telescopic slot and is fixedly connected to the telescopic slot; A support block is disposed on the telescopic plate and fixedly connected to the telescopic plate; A fixed block, disposed on the support block and fixedly connected to the support block; A flip mechanism, arranged on the box body, for covering the filter screen; The buffer mechanism is arranged in the box body and is used for buffering the vibration generated by the engine.

[0006] Preferably, the buffer mechanism comprises: A buffer cylinder is arranged on the box body and fixedly connected to the box body; A first buffer rod, slidably connected to the buffer cylinder; A buffer spring, disposed on the first buffer rod and fixedly connected to the first buffer rod; A second buffer rod, disposed on the buffer spring and fixedly connected to the buffer spring; A buffer block, fixedly connected to the second buffer rod; A first connecting shaft, disposed on the buffer block and fixedly connected to the buffer block; The connecting components are provided in two groups, and the two groups of connecting components are symmetrically arranged in the box body.

[0007] Preferably, the connecting component comprises: A first connecting frame, disposed on the first connecting shaft and fixedly connected to the first connecting shaft; A connecting spring, arranged on the first connecting frame, fixedly connected to the first connecting frame and fixedly connected to the box body; A first connecting plate, disposed on the first connecting shaft and rotatably connected to the first connecting shaft; The second connecting plate is rotatably connected to the first connecting shaft.

[0008] A second connecting shaft, disposed on the first connecting plate and rotatably connected to the first connecting plate; a third connecting shaft, rotatably connected to the second connecting plate; The elastic component is arranged on the second connecting frame.

[0009] Preferably, the elastic component comprises: A second connecting frame, disposed on the second connecting shaft and fixedly connected to the second connecting shaft; A third connecting frame is disposed on the third connecting shaft and is fixedly connected to the third connecting shaft; A first elastic spring, disposed on the second connecting frame and fixedly connected to the second connecting frame; A second elastic spring, disposed on the second connecting frame, fixedly connected to the second connecting frame, and fixedly connected to the third connecting frame; The third elastic spring is arranged on the third connecting frame, fixedly connected to the third connecting frame and fixedly connected to the box body.

[0010] Preferably, the flipping mechanism comprises: A first flip block is disposed on the box body and fixedly connected to the box body; A flip frame, disposed on the first flip block and fixedly connected to the first flip block; A flip motor is disposed in the flip frame and fixedly connected to the flip frame; A flip shaft, detachably fixedly connected to the output end of the flip motor; The rotating component is arranged on the first flip block.

[0011] Preferably, the rotating component comprises: A first rotating rod, disposed on the first flip block and fixedly connected to the first flip block; A second rotating rod, fixedly connected to the first flip block; A rotating block is disposed on the flip shaft, is rotationally connected to the flip shaft, is slidably connected to the first rotating rod, and is slidably connected to the second rotating rod; There are multiple rotating plates, and the multiple rotating plates are evenly arranged on the rotating block and fixedly connected to the rotating block; The transmission component is arranged on the rotating plate.

[0012] Preferably, the transmission component comprises: A transmission rod, disposed on the rotating plate and fixedly connected to the rotating plate; A first transmission plate, disposed on the transmission rod and rotatably connected to the transmission rod; A second transmission plate, disposed on the first transmission plate and fixedly connected to the first transmission plate; A transmission shaft, disposed on the first transmission plate and fixedly connected to the first transmission plate; The fixing assembly is arranged on the transmission shaft.

[0013] Preferably, the fixing assembly comprises: A fixing plate, disposed on the transmission shaft and rotatably connected to the transmission shaft; A fixed shaft, rotatably connected to the fixed plate; A fixed frame, disposed on the fixed shaft and fixedly connected to the fixed shaft; The second flip block is arranged on the box body, fixedly connected to the box body, fixedly connected to the fixing frame, fixedly connected to the first rotating rod, and fixedly connected to the second rotating rod.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: By providing a buffer mechanism, a connecting component and an elastic component, the vibration generated when the engine is running is buffered. By providing a flip mechanism, a rotating component, a transmission component and a fixed component, the filter is covered. By providing a buffer mechanism and a flip mechanism, the noise emitted when the power supply vehicle is running is reduced, thereby avoiding excessive noise affecting the operation. When the power supply vehicle encounters strong winds in the desert, the filter is prevented from being blocked, affecting the ventilation effect of the filter and causing damage to the internal parts of the power supply vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 A three-dimensional structural schematic diagram of a noise reduction ventilation device for a power vehicle is shown.

[0017] Figure 2 A schematic diagram of the top view of a noise reduction ventilation device for a power vehicle is shown.

[0018] Figure 3 The AA cross-sectional structural diagram of a noise reduction ventilation device for a power vehicle is shown.

[0019] Figure 4 A BB cross-sectional structural schematic diagram of a noise reduction ventilation device for a power vehicle is shown.

[0020] Figure 5 A schematic diagram of the three-dimensional structure of a flip mechanism of a noise reduction ventilation device for a power vehicle is shown.

[0021] Figure 6 A schematic diagram of the three-dimensional structure of a buffer mechanism of a noise reduction ventilation device for a power vehicle is shown.

[0022] Figure 7 An exploded view of a buffer mechanism of a noise reduction ventilation device for a power vehicle is shown.

[0023] Figure 8 An exploded view of a flip mechanism of a noise reduction ventilation device for a power vehicle is shown.

[0024] Legend: 1. Box body; 2. Support plate; 3. Filter tank; 4. Filter screen; 5. Oil storage tank; 6. Engine box; 7. Fuel filling port; 8. Fuel filling pipe; 9. Electric connection pipe; 10. Telescopic slot; 11. Telescopic plate; 12. Support block; 13. Fixed block; 14. Buffer cylinder; 15. First buffer rod; 16. Buffer spring; 17. Second buffer rod; 18. Buffer block; 19. First connecting shaft; 20. First connecting frame; 21. Connecting spring; 22. First connecting plate; 23. Second connecting plate; 24. Second connecting shaft; 25. The third connecting shaft; 26, the second connecting frame; 27, the third connecting frame; 28, the first elastic spring; 29, the second elastic spring; 30, the third elastic spring; 32, the first flip block; 33, the flip frame; 34, the flip motor; 35, the flip shaft; 36, the first rotating rod; 37, the second rotating rod; 38, the rotating block; 39, the rotating plate; 40, the transmission rod; 41, the first transmission plate; 42, the second transmission plate; 43, the transmission shaft; 44, the fixed plate; 45, the fixed shaft; 46, the fixed frame; 47, the second flip block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Reference Figures 1 to 8 An embodiment of a noise reduction and ventilation device for a power vehicle of the present invention is further described.

[0030] A noise reduction ventilation device for a power vehicle, comprising a box body 1 and a support plate 2, wherein the support plate 2 is slidably connected to the box body 1; further comprising: a filter tank 3, which is opened on the box body 1; a filter screen 4, which is arranged in the filter tank 3 and is fixedly connected to the filter tank 3; an oil storage tank 5, which is arranged on the support plate 2 and is fixedly connected to the support plate 2; an engine box 6, which is arranged on the support plate 2 and is fixedly connected to the support plate 2; a refueling port 7, which is opened on the box body 1; a refueling pipe 8, which is arranged in the refueling port 7 and is fixedly connected to the refueling port 7 and is fixedly connected to the oil storage tank 5; an electrical connection pipe 9 , arranged on the engine box 6, fixedly connected to the engine box 6, and fixedly connected to the box body 1; the telescopic slot 10 is opened on the box body 1; the telescopic plate 11 is arranged in the telescopic slot 10 and fixedly connected to the telescopic slot 10; the support block 12 is arranged on the telescopic plate 11 and fixedly connected to the telescopic plate 11; the fixed block 13 is arranged on the support block 12 and fixedly connected to the support block 12; the flip mechanism is arranged on the box body 1, and is used to cover the filter screen 4; the buffer mechanism is arranged in the box body 1, and is used to buffer the vibration generated by the engine.

[0031] Reference Figure 6 and Figure 7 As a preferred embodiment, the buffer mechanism includes: a buffer cylinder 14, which is arranged on the box body 1 and fixedly connected to the box body 1; a first buffer rod 15, which is slidably connected to the buffer cylinder 14; a buffer spring 16, which is arranged on the first buffer rod 15 and fixedly connected to the first buffer rod 15; a second buffer rod 17, which is arranged on the buffer spring 16 and fixedly connected to the buffer spring 16; a buffer block 18, which is fixedly connected to the second buffer rod 17; and a connecting component, which is arranged on the buffer block 18.

[0032] By such arrangement, when the buffer cylinder 14 is in operation, it drives the first buffer rod 15 slidably connected to the buffer cylinder 14 to slide in a direction away from the buffer cylinder 14, so that the second buffer rod 17 fixedly connected to the buffer spring 16 moves in a direction away from the buffer cylinder 14, thereby driving the buffer block 18 fixedly connected to the second buffer rod 17 to move, thereby providing power for the operation of the connecting component.

[0033] Reference Figure 6 and Figure 7 As a preferred embodiment, the connecting component includes: a first connecting shaft 19, which is arranged on the buffer block 18 and fixedly connected to the buffer block 18; a first connecting frame 20, which is arranged on the first connecting shaft 19 and fixedly connected to the first connecting shaft 19; a connecting spring 21, which is arranged on the first connecting frame 20, fixedly connected to the first connecting frame 20, and fixedly connected to the box body 1; a first connecting plate 22, which is arranged on the first connecting shaft 19 and rotatably connected to the first connecting shaft 19; and a second connecting plate 23, which is rotatably connected to the first connecting shaft 19.

[0034] Reference Figure 6 and Figure 7 As a preferred embodiment, the connecting component also includes: a second connecting shaft 24, which is arranged on the first connecting plate 22 and is rotatably connected to the first connecting plate 22; a third connecting shaft 25, which is rotatably connected to the second connecting plate 23; a second connecting frame 26, which is arranged on the second connecting shaft 24 and is fixedly connected to the second connecting shaft 24; a third connecting frame 27, which is arranged on the third connecting shaft 25 and is fixedly connected to the third connecting shaft 25; and an elastic component, which is arranged on the second connecting frame 26.

[0035] In this arrangement, the first connecting plate 22 and the second connecting plate 23 rotatably connected to the first connecting shaft 19 rotate around the axis of the first connecting shaft 19, so that the connecting spring 21 fixedly connected to the first connecting frame 20 is compressed, thereby generating elastic potential energy, thereby driving the second connecting frame 26 and the third connecting frame 27 fixedly connected to the second connecting shaft 24 and the third connecting shaft 25 to approach each other, thereby driving the elastic component to operate.

[0036] Reference Figure 6 and Figure 7 As a preferred embodiment, the elastic component includes: a first elastic spring 28, which is arranged on the second connecting frame 26 and fixedly connected to the second connecting frame 26; a second elastic spring 29, which is arranged on the second connecting frame 26, fixedly connected to the second connecting frame 26, and fixedly connected to the third connecting frame 27; a third elastic spring 30, which is arranged on the third connecting frame 27, fixedly connected to the third connecting frame 27, and fixedly connected to the box body 1.

[0037] In this arrangement, the first elastic spring 28 fixedly connected to the second connecting frame 26 is stretched to generate elastic potential energy, and at the same time the second elastic spring 29 fixedly connected to the second connecting frame 26 and the third connecting frame 27 is compressed to generate elastic potential energy, so that the third elastic spring 30 fixedly connected to the third connecting frame 27 is stretched to generate elastic potential energy, thereby achieving buffering of vibrations generated when the engine is running.

[0038] Reference Figure 5 and Figure 8 As a preferred embodiment, the flip mechanism includes: a first flip block 32, which is arranged on the box body 1 and fixedly connected to the box body 1; a flip frame 33, which is arranged on the first flip block 32 and fixedly connected to the first flip block 32; a flip motor 34, which is arranged in the flip frame 33 and fixedly connected to the flip frame 33; a flip shaft 35, which is detachably fixedly connected to the output end of the flip motor 34; and a rotating component, which is arranged on the first flip block 32.

[0039] With such arrangement, when the flip motor 34 is in operation, the flip shaft 35 which is detachably fixedly connected to the output end of the flip motor 34 is driven to rotate, thereby providing power for the operation of the rotating components.

[0040] Reference Figure 5 and Figure 8 As a preferred embodiment, the rotating component includes: a first rotating rod 36, which is arranged on the first flip block 32 and fixedly connected to the first flip block 32; a second rotating rod 37, which is fixedly connected to the first flip block 32; a rotating block 38, which is arranged on the flip shaft 35, is rotatably connected to the flip shaft 35, is slidably connected to the first rotating rod 36, and is slidably connected to the second rotating rod 37; there are multiple rotating plates 39, and the multiple rotating plates 39 are evenly arranged on the rotating block 38 and fixedly connected to the rotating block 38; a transmission component is arranged on the rotating plate 39.

[0041] Such arrangement enables the rotating block 38 rotatably connected to the flip shaft 35 to move in a direction away from the first flip block 32 , thereby driving the rotating block 38 to slide on the first rotating rod 36 and the second rotating rod 37 , thereby driving the transmission component to operate.

[0042] Reference Figure 5 and Figure 8 As a preferred embodiment, the transmission component includes: a transmission rod 40, which is arranged on the rotating plate 39 and fixedly connected to the rotating plate 39; a first transmission plate 41, which is arranged on the transmission rod 40 and rotatably connected to the transmission rod 40; a second transmission plate 42, which is arranged on the first transmission plate 41 and fixedly connected to the first transmission plate 41; a transmission shaft 43, which is arranged on the first transmission plate 41 and fixedly connected to the first transmission plate 41; and a fixing component, which is arranged on the transmission shaft 43.

[0043] By such arrangement, the transmission rod 40 fixedly connected to the rotating plate 39 drives the first transmission plate 41 to rotate around the axis of the transmission rod 40, thereby moving the second transmission plate 42 fixedly connected to the first transmission plate 41, thereby operating the fixed assembly.

[0044] Reference Figure 5 and Figure 8 As a preferred embodiment, the fixing assembly includes: a fixing plate 44, which is arranged on the transmission shaft 43 and is rotatably connected to the transmission shaft 43; a fixing shaft 45, which is rotatably connected to the fixing plate 44; a fixing frame 46, which is arranged on the fixing shaft 45 and is fixedly connected to the fixing shaft 45; a second flip block 47, which is arranged on the box body 1, is fixedly connected to the box body 1, is fixedly connected to the fixing frame 46, is fixedly connected to the first rotating rod 36, and is fixedly connected to the second rotating rod 37.

[0045] Such arrangement enables the fixing plate 44 rotatably connected to the transmission shaft 43 to rotate around the axis of the fixing shaft 45 fixedly connected to the fixing frame 46 , thereby covering the filter screen 4 .

[0046] Working principle: when working, first drive the power supply vehicle to the designated location, then open the telescopic plate 11, so that the telescopic plate 11 slides in the telescopic groove 10, and then open the support block 12, so that the support block 12 is extended in the direction away from the telescopic plate 11, so that the fixed block 13 fixedly connected to the support block 12 is in contact with the ground, and then start the starting box 6, so that the power supply vehicle generates electricity, and then insert the interface of the equipment that needs electricity into the power connection pipe 9 for power supply. When the starting box 6 is working, first start the buffer cylinder 14, and drive the first buffer rod 15 slidably connected to the buffer cylinder 14 to slide in the direction away from the buffer cylinder 14, so that the second buffer rod 17 fixedly connected to the buffer spring 16 moves in the direction away from the buffer cylinder 14, thereby driving the second buffer rod 17 fixedly connected to the second buffer rod 17 to move in the direction away from the buffer cylinder 14. The buffer block 18 connected thereto moves, so that the first connecting plate 22 and the second connecting plate 23 rotatably connected to the first connecting shaft 19 rotate around the axis of the first connecting shaft 19, so that the connecting spring 21 fixedly connected to the first connecting frame 20 is compressed, thereby generating elastic potential energy, thereby driving the second connecting frame 26 and the third connecting frame 27 fixedly connected to the second connecting shaft 24 and the third connecting shaft 25 to approach each other, so that the first elastic spring 28 fixedly connected to the second connecting frame 26 is stretched, generating elastic potential energy, and at the same time, the second elastic spring 29 fixedly connected to the second connecting frame 26 and the third connecting frame 27 is compressed, thereby generating elastic potential energy, so that the third elastic spring 30 fixedly connected to the third connecting frame 27 is stretched, thereby generating elastic potential energy; Then, when encountering strong winds, start the flip motor 34, driving the flip shaft 35 detachably fixedly connected to the output end of the flip motor 34 to rotate, so that the rotating block 38 rotatably connected to the flip shaft 35 moves in the direction away from the first flip block 32, thereby driving the rotating block 38 to slide on the first rotating rod 36 and the second rotating rod 37, so that the transmission rod 40 fixedly connected to the rotating plate 39 drives the first transmission plate 41 to rotate around the axis of the transmission rod 40, thereby making the second transmission plate 42 fixedly connected to the first transmission plate 41 move, thereby driving the fixed plate 44 rotatably connected to the transmission shaft 43 to rotate around the axis of the fixed shaft 45 fixedly connected to the fixed frame 46.

[0047] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A noise reduction and ventilation device for a power vehicle, comprising a box body (1) and a support plate (2), wherein the support plate (2) is slidably connected to the box body (1); characterized in that: Also includes: A filter tank (3) is provided on the box body (1); A filter screen (4) is arranged in the filter tank (3) and is fixedly connected to the filter tank (3); An oil storage tank (5) is arranged on the support plate (2) and is fixedly connected to the support plate (2); An engine box (6) is disposed on the support plate (2) and is fixedly connected to the support plate (2); A refueling port (7) is provided on the box body (1); A refueling pipe (8) is disposed in the refueling port (7), fixedly connected to the refueling port (7), and fixedly connected to the oil storage tank (5); An electrical connection pipe (9) is disposed on the engine box (6), fixedly connected to the engine box (6), and fixedly connected to the box body (1); A telescopic slot (10) is provided on the box body (1); A telescopic plate (11) is arranged in the telescopic slot (10) and is fixedly connected to the telescopic slot (10); A support block (12) is disposed on the telescopic plate (11) and is fixedly connected to the telescopic plate (11); A fixed block (13) is disposed on the support block (12) and is fixedly connected to the support block (12); A flip mechanism, arranged on the box body (1) and used for covering the filter screen (4); A buffer mechanism is arranged in the box (1) and is used to buffer vibrations generated by the engine.

2. A noise reduction ventilation device for a power vehicle according to claim 1, characterized in that: The buffer mechanism comprises: A buffer cylinder (14) is disposed on the box body (1) and is fixedly connected to the box body (1); A first buffer rod (15) slidably connected to the buffer cylinder (14); A buffer spring (16) is disposed on the first buffer rod (15) and is fixedly connected to the first buffer rod (15); A second buffer rod (17) is disposed on the buffer spring (16) and is fixedly connected to the buffer spring (16); A buffer block (18) fixedly connected to the second buffer rod (17); A first connecting shaft (19) is disposed on the buffer block (18) and is fixedly connected to the buffer block (18); The connecting components include two groups, and the two groups of connecting components are symmetrically arranged in the box body (1).

3. A noise reduction ventilation device for a power vehicle according to claim 2, characterized in that: The connecting component comprises: A first connecting frame (20) is disposed on the first connecting shaft (19) and is fixedly connected to the first connecting shaft (19); A connecting spring (21), arranged on the first connecting frame (20), fixedly connected to the first connecting frame (20), and fixedly connected to the box body (1); A first connecting plate (22) is disposed on the first connecting shaft (19) and is rotatably connected to the first connecting shaft (19); A second connecting plate (23) rotatably connected to the first connecting shaft (19); a second connecting shaft (24) disposed on the first connecting plate (22) and rotatably connected to the first connecting plate (22); A third connecting shaft (25) rotatably connected to the second connecting plate (23); An elastic component is arranged on the first connecting plate (22).

4. A noise reduction ventilation device for a power vehicle according to claim 3, characterized in that: The elastic component comprises: a second connecting frame (26), arranged on the second connecting shaft (24) and fixedly connected to the second connecting shaft (24); A third connecting frame (27), arranged on the third connecting shaft (25) and fixedly connected to the third connecting shaft (25); a first elastic spring (28), one end of which is fixedly connected to the second connection frame (26), and one end of which is fixedly connected to the support plate (2); a second elastic spring (29), one end of which is fixedly connected to the second connection frame (26), and one end of which is fixedly connected to the third connection frame (27); A third elastic spring (30) has one end fixedly connected to the third connection frame (27) and one end fixedly connected to the box body (1).

5. A noise reduction ventilation device for a power vehicle according to claim 4, characterized in that: The flipping mechanism comprises: A first turning block (32) is disposed on the box body (1) and is fixedly connected to the box body (1); A turning frame (33) is arranged on the first turning block (32) and is fixedly connected to the first turning block (32); A turning motor (34) is disposed in the turning frame (33) and is fixedly connected to the turning frame (33); A turning shaft (35) is detachably fixedly connected to the output end of the turning motor (34); The rotating component is arranged on the first turning block (32).

6. A noise reduction ventilation device for a power vehicle according to claim 5, characterized in that: The rotating component comprises: A first rotating rod (36) is disposed on the first flip block (32) and is fixedly connected to the first flip block (32); A second rotating rod (37) fixedly connected to the first flip block (32); a rotating block (38) disposed on the flip shaft (35), rotatably connected to the flip shaft (35), slidably connected to the first rotating rod (36), and slidably connected to the second rotating rod (37); There are a plurality of rotating plates (39), and the plurality of rotating plates (39) are evenly arranged on the rotating block (38) and fixedly connected to the rotating block (38); A transmission component is arranged on the rotating plate (39).

7. A noise reduction ventilation device for a power vehicle according to claim 6, characterized in that: The transmission components include: A transmission rod (40) is disposed on the rotating plate (39) and is fixedly connected to the rotating plate (39); A first transmission plate (41) is disposed on the transmission rod (40) and is rotationally connected to the transmission rod (40); a second transmission plate (42) disposed on the first transmission plate (41) and fixedly connected to the first transmission plate (41); A transmission shaft (43) is disposed on the first transmission plate (41) and is fixedly connected to the first transmission plate (41); A fixing assembly is arranged on the transmission shaft (43).

8. A noise reduction ventilation device for a power vehicle according to claim 7, characterized in that: The fixing assembly comprises: A fixing plate (44) is disposed on the transmission shaft (43) and is rotationally connected to the transmission shaft (43); A fixed shaft (45) rotatably connected to the fixed plate (44); A fixed frame (46), disposed on the fixed shaft (45) and fixedly connected to the fixed shaft (45); The second flip block (47) is arranged on the box body (1), fixedly connected to the box body (1), fixedly connected to the fixed frame (46), fixedly connected to the first rotating rod (36), and fixedly connected to the second rotating rod (37).

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