Ventilation system for engine compartment of hot blowing snow sweeper

Abstract

The utility model relates to the technical field of hot blowing snow removers, which comprises four side automatic shutters mounted at the left end and the right end of an aero-engine compartment and a rear automatic shutter mounted at the rear end of the aero-engine compartment, and the side automatic shutters and the rear automatic shutters have the same structural principle. The side face automatic louver comprises a louver frame and a driving device, the driving device is composed of a driving motor and a driving shaft, the driving motor is installed on the inner side of the aero-engine compartment, and the lower portion of the louver frame is fixedly connected with a driving shaft support. According to the engine compartment ventilation system of the hot-blowing snow sweeper, the ventilation shutters can be automatically opened and closed, an aero-engine compartment can be automatically closed and isolated from the outside, it is guaranteed that fire does not overflow within a certain period of time, meanwhile, the fire extinguishing agent eruption condition is met, and the defect that a fixed ventilation shutter cannot prevent fire is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-blowing snow removal vehicles, in particular to an engine compartment ventilation system of a hot-blowing snow removal vehicle. Background Art

[0002] Currently, snow removal operations on airport runways and highways in northern my country mostly rely on mechanical snowplows. These vehicles are inefficient and time-consuming, failing to meet the timelines for disaster prevention and reopening airports and highways. Some airports and highways have adopted hot-blow snowplows for efficient snow removal. While these vehicles improve snow removal efficiency and reduce operation time, they are powered by aircraft jet engines, posing a significant fire hazard and prone to fire accidents. These vehicles are specialized motor vehicles designed for rapid snow removal on roads and airport runways. Fuel tanks typically hold enough aviation fuel (approximately 4,000-7,000 kg) for 2.5 hours of aircraft engine operation, making firefighting difficult. Snow removal operations require the presence of specialized fire trucks to provide firefighting support. Due to the potential fire hazards associated with retired aircraft engines, fixed ventilation shutters cannot actively contain fire in the event of a fire. This brings instability to airport safety management. At present, there are no complete specifications and standards in China to guide the design and assembly of hot-blowing snow removal vehicles. The hot-blowing snow removal (melting) engineering vehicles currently produced and used in China are all powered by retired military jet engines. The ventilation shutters in their aircraft engine compartments are all fixed. The disadvantage is that once a fire occurs in the aircraft engine compartment, the fire cannot be quickly isolated. The fire develops rapidly and is easy to ignite the adjacent fuel tanks. The safety of the surrounding area cannot be guaranteed within a certain period of time, and the conditions for self-rescue and fire extinguishing are not met. Therefore, we propose a new engine compartment ventilation system for hot-blowing snow removal vehicles. Utility Model Content

[0003] The main purpose of the utility model is to provide a ventilation system for the engine compartment of a hot-blowing snow removal vehicle, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The engine compartment ventilation system of a hot-blowing snowplow includes automatic side shutters installed at the left and right ends of the aircraft engine compartment and rear automatic shutters at the rear end. There are a total of four automatic side shutters, and the structural principles of the automatic side shutters and the blade rotation connecting rod are the same.

[0006] Preferably, the side automatic blinds include a blind frame and a drive device, the drive device consists of a drive motor and a drive shaft, the drive motor is installed on the inner side of the aircraft engine compartment, the lower part of the blind frame is fixedly connected to the drive shaft bracket, the drive shaft bracket is movably connected to the drive shaft, the drive shaft is transmission-connected to the drive motor, the left and right outer surfaces of the drive shaft are fixedly connected to the drive shaft rotation connecting pieces, the side of the drive shaft rotation connecting piece away from the drive shaft is movably connected to the blade rotation connecting rod through the rotating shaft, and a number of blind rotation connecting pieces are movably connected to the blade rotation connecting rod through the rotating shaft, the inner wall of the blind frame is fixedly connected to the rotating shaft bracket, and a number of blade rotation shafts are laterally movably connected in the rotating shaft bracket, and the outer surface of each blade rotation shaft is fixedly connected to a movable blind, and the end of the blind rotation connecting piece away from the blade rotation connecting rod is respectively fixedly connected to the outer surface of the blade rotation shaft.

[0007] Preferably, the outer surfaces of the movable shutters are coated with a thin fire-retardant coating.

[0008] Preferably, the side automatic blinds and the rear automatic blinds can adopt three control modes: manual opening and closing mode, automatic closing mode and automatic opening and closing mode. The manual opening and closing mode is achieved by issuing instructions through a manual button, the automatic closing mode is achieved by issuing instructions through the security control system, and the automatic opening and closing mode is achieved by issuing instructions through the vehicle-mounted automatic control system.

[0009] Preferably, the driving device can also be composed of a driving cylinder and a driving shaft, the output end of the driving cylinder is fixedly connected to one end of the driving shaft, the driving cylinder is installed on the inside of the aircraft engine compartment, and the driving shaft is movably connected to the driving shaft bracket.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This patent enables the aircraft engine compartment to quickly establish a closed space with fire prevention function. After the aircraft engine compartment and the automatic opening and closing shutters are coated with fire-retardant paint, it can ensure that the fire in the aircraft engine compartment will not spill out within the specified time and will not cause secondary fires, thereby buying time for external fire rescue. At the same time, after the aircraft engine compartment space is closed, it meets the application conditions for hot-blowing snowplows to carry out fire self-rescue, reduces the amount of fire extinguishing agents used, and reduces management costs, so that hot-blowing snowplows can carry out self-rescue for fires in the aircraft engine compartment, and improves the safety operation standards of airport auxiliary mechanical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the installation position of the shutters of the engine compartment ventilation system of the hot-blowing snow removal vehicle of the present invention;

[0013] Figure 2 This is the overall structure diagram of the electric control of the shutters of the engine compartment ventilation system of the hot-blowing snow removal vehicle of the utility model;

[0014] Figure 3 This is an enlarged detail view of point C of the engine compartment ventilation system of the hot-blowing snow removal vehicle of the present invention;

[0015] Figure 4 This is an enlarged detail view of point D of the engine compartment ventilation system of the hot-blowing snow removal vehicle of the present invention;

[0016] Figure 5 This is the overall structure diagram of the pneumatic control of the shutters of the engine compartment ventilation system of the hot-blowing snow removal vehicle of the utility model;

[0017] Figure 6 This is a schematic diagram of the shutter control mode of the engine compartment ventilation system of the hot-blowing snow removal vehicle of the present invention.

[0018] In the figure: 1. Aircraft engine compartment; 2. Side automatic blinds; 3. Rear automatic blinds; 4. Drive motor; 5. Drive shaft; 6. Drive shaft bracket; 7. Blade rotation connecting rod; 8. Shutter frame; 9. Drive cylinder; 10. Drive shaft rotation connecting piece; 11. Shutter rotation connecting piece; 12. Blade rotation shaft; 13. Movable blinds; 14. Rotation shaft bracket; 15. Drive device. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] See also Figures 1-6 , the utility model provides a technical solution:

[0023] The engine compartment ventilation system of the hot-blowing snowplow includes automatic side shutters 2 installed at the left and right ends of the aircraft engine compartment 1 and rear automatic shutters 3 at the rear end. There are a total of four automatic side shutters 2, and the structural principles of the automatic side shutters 2 and the rear automatic shutters 3 are the same.

[0024] The side automatic blinds 2 include a blind frame 8 and a drive device 15, the drive device 15 is composed of a drive motor 4 and a drive shaft 5, the drive motor 4 is installed on the inside of the aircraft engine compartment 1, the lower part of the blind frame 8 is fixedly connected to the drive shaft bracket 6, the drive shaft bracket 6 is movably connected to the drive shaft 5, the drive shaft 5 is transmission-connected to the drive motor 4, the left and right outer surfaces of the drive shaft 5 are fixedly connected to the drive shaft rotating connecting piece 10, the drive shaft rotating connecting piece 10 is movably connected to the side away from the drive shaft 5 by a rotating shaft There is a blade rotation connecting rod 7, and a number of louver rotation connecting pieces 11 are movably connected to the blade rotation connecting rod 7 through a rotating shaft. The inner wall of the louver frame 8 is fixedly connected to a rotation shaft bracket 14, and a number of blade rotation shafts 12 are laterally movably connected in the rotation shaft bracket 14. The outer surface of each blade rotation shaft 12 is fixedly connected to a movable louver 13, and the end of the louver rotation connecting piece 11 away from the blade rotation connecting rod 7 is fixedly connected to the outer surface of the blade rotation shaft 12, and the outer surfaces of the movable louvers 13 are coated with a thin fire retardant paint.

[0025] In this embodiment, the side automatic blinds 2 and the rear automatic blinds 3 at the rear end are electrically controlled, and the drive motor 4 uses a bevel gear transmission to drive the drive shaft 5 to rotate, so that the drive shaft rotation connecting piece 10 drives the blade rotation connecting rod 7 to move up and down, so that the blinds rotation connecting piece 11 drives the blade rotation shaft 12 to rotate, realizing the angle adjustment of the movable blinds 13 and thus realizing the opening and closing of the side automatic blinds 2 and the rear automatic blinds 3 at the rear end.

[0026] The side automatic blinds 2 include a blind frame 8 and a drive device 15. The drive device 15 can also be composed of a drive cylinder 9 and a drive shaft 5. The output end of the drive cylinder 9 is fixedly connected to one end of the drive shaft 5. The drive cylinder 9 is installed on the inner side of the aircraft engine compartment 1. The drive shaft 5 is movably connected to the drive shaft bracket 6. The left and right parts of the outer surface of the drive shaft 5 are fixedly connected to the drive shaft rotation connecting piece 10. The side of the drive shaft rotation connecting piece 10 away from the drive shaft 5 is movably connected to the blade rotation connecting rod 7 through a rotating shaft. The blade rotation connecting rod 7 is movably connected to a number of blind rotation connecting pieces 11 through a rotating shaft. The inner wall of the blind frame 8 is fixedly connected to a rotating shaft bracket 14. A number of blade rotation shafts 12 are laterally movably connected in the rotating shaft bracket 14. The outer surface of each blade rotation shaft 12 is fixedly connected to a movable blind 13. The blind rotation connecting piece 11 is fixedly connected to the outer surface of the blade rotation shaft 12 at one end away from the blade rotation connecting rod 7. The outer surfaces of the movable blinds 13 are coated with fire retardant paint.

[0027] In this embodiment, the side automatic blinds 2 and the rear automatic blinds 3 at the rear end are pneumatically controlled, and the driving cylinder 9 pushes the driving shaft 5 up and down, so that the driving shaft rotating connecting piece 10 drives the blade rotating connecting rod 7 to move up and down, so that the blinds rotating connecting piece 11 drives the blade rotating shaft 12 to rotate, thereby realizing the angle adjustment of the movable blinds 13 and realizing the opening and closing of the side automatic blinds 2 and the rear automatic blinds 3 at the rear end.

[0028] The side automatic blinds 2 and the rear automatic blinds 3 can both adopt three control modes: manual opening and closing mode, automatic closing mode and automatic opening and closing mode. The manual opening and closing mode is achieved by issuing commands through a manual button. The automatic closing mode is achieved by issuing commands through the security control system. The automatic opening and closing mode is achieved by issuing commands through the vehicle-mounted automatic control system.

[0029] In this embodiment, while meeting the air intake requirements of the aircraft jet engine, it can also realize the need for automatic fire extinguishing when there is a fire in the aircraft engine compartment. This is mainly achieved by starting the drive motor 4 or the drive cylinder 9 according to a predetermined program through the fire monitoring system and the automatic control system MECS, and outputting power through the drive shaft 5 to achieve angle adjustment of the movable shutters 13, so as to automatically close the side automatic shutters 2 and the rear automatic shutters 3 of the aircraft engine compartment 1.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation system for a hot-air snow removal vehicle engine compartment, comprising automatic side shutters (2) installed at the left and right ends of an aircraft engine compartment (1) and an automatic rear shutter (3) at the rear end, characterized in that: There are four automatic side blinds (2) in total, and the structural principles of the automatic side blinds (2) and the automatic rear blinds (3) are the same; The side automatic blind (2) comprises a blind frame (8) and a driving device (15); The driving device (15) is composed of a driving motor (4) and a driving shaft (5), wherein the driving motor (4) is installed inside the aircraft engine compartment (1), a driving shaft bracket (6) is fixedly connected to the lower part of the shutter frame (8), the driving shaft bracket (6) is movably connected to the driving shaft (5), the driving shaft (5) is transmission-connected to the driving motor (4), and a driving shaft rotating connecting piece (10) is fixedly connected to the left and right outer surfaces of the driving shaft (5), and the driving shaft rotating connecting piece (10) is movably connected to the side away from the driving shaft (5) by a rotating shaft. A blade rotating connecting rod (7) is movably connected to the blade rotating connecting rod (7), and a plurality of louver rotating connecting pieces (11) are movably connected to the blade rotating connecting rod (7) via a rotating shaft. The inner wall of the louver frame (8) is fixedly connected to a rotating shaft bracket (14), and a plurality of blade rotating shafts (12) are movably connected in a transverse direction in the rotating shaft bracket (14). The outer surface of each blade rotating shaft (12) is fixedly connected to a movable louver (13), and one end of the louver rotating connecting piece (11) away from the blade rotating connecting rod (7) is fixedly connected to the outer surface of the blade rotating shaft (12).

2. The engine compartment ventilation system of a hot-blowing snow removal vehicle according to claim 1, characterized in that: The outer surfaces of the movable shutters (13) are all coated with a thin fireproof coating.

3. The engine compartment ventilation system of a hot-blowing snow removal vehicle according to claim 1, characterized in that: The side automatic blinds (2) and the rear automatic blinds (3) can both adopt three control modes: a manual opening and closing mode, an automatic closing mode, and an automatic opening and closing mode. The manual opening and closing mode is achieved by issuing a command through a manual button, the automatic closing mode is achieved by issuing a command through a security control system, and the automatic opening and closing mode is achieved by issuing a command through an onboard automatic control system.

4. The engine compartment ventilation system of a hot-blowing snow removal vehicle according to claim 1, characterized in that: The driving device (15) can also be composed of a driving cylinder (9) and a driving shaft (5), wherein the output end of the driving cylinder (9) is fixedly connected to one end of the driving shaft (5), the driving cylinder (9) is installed inside the aircraft engine compartment (1), and the driving shaft (5) is movably connected to the driving shaft bracket (6).

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