Garbage salvage device based on unmanned remote control ship

Abstract

The invention relates to the technical field of unmanned remote control ship auxiliary equipment, and discloses an unmanned remote control ship-based garbage salvage device which comprises a ship body assembly, a garbage treatment device is fixedly mounted at the front end of the ship body assembly, a cleaning assembly is fixedly mounted at the rear end of the ship body assembly, and the ship body assembly can sail in a water area. The garbage treatment device can be used for salvaging floating garbage on a water area, the cleaning assembly can achieve the function of cleaning the ship body assembly, the ship body assembly comprises a ship body part, a front crossing is formed in the front end of the ship body part, and a side mounting groove is formed in the wall face, located on one side of the front crossing, of the interior of the ship body part. Two bottom mounting grooves are formed in the positions, located on the bottom side wall face of the front crossing, of the interior of the ship body piece, a built-in groove is formed in the bottom face of the interior of the ship body piece, side pipelines are arranged on the two sides of the ship body piece, and the device has the function of salvaging and treating garbage floating on the water surface and can achieve the function of cleaning the inner side wall face of the ship body.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned remote-controlled boat auxiliary equipment, and more specifically to a garbage salvaging device based on an unmanned remote-controlled boat. Background Art

[0002] In terms of water area detection, unmanned remote-controlled boats are a convenient water area monitoring equipment. Workers can use unmanned remote-controlled boats to detect water quality in the water area. The remote control and drive device can make the unmanned remote-controlled boats sail in various locations in the water area without any safety issues for the workers. However, under the existing technology, when workers use unmanned remote-controlled boats, there are still the following deficiencies: First, when an unmanned remote-controlled boat under the existing technology is sailing on the water, the garbage floating on the water will cause navigation obstacles to the unmanned remote-controlled boat, and the garbage will have an adverse effect on the water quality if it is not handled in time. However, the unmanned remote-controlled boat under the existing technology does not have the function of salvaging and handling the garbage floating on the water; Secondly, when the unmanned remote-controlled boat under the existing technology is sailing, the inner wall of the boat is easily contaminated with foreign dirt, and the unmanned remote-controlled boat under the existing technology does not have the function of cleaning the inner wall of the boat; Therefore, in order to solve the above problems, it is necessary to provide a garbage salvaging device based on an unmanned remote-controlled boat. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a garbage salvaging device based on an unmanned remote-controlled boat to solve the problems existing in the above-mentioned background technology.

[0004] The present invention provides the following technical solution: a garbage salvaging device based on an unmanned remote-controlled boat, comprising a hull assembly, a garbage disposal device is fixedly installed at the front end of the hull assembly, a cleaning assembly is fixedly installed at the rear end of the hull assembly, the hull assembly can sail in waters, the garbage disposal device can be used to salvage floating garbage on the waters, and the cleaning assembly can realize the function of cleaning the hull assembly; The hull assembly includes a hull member, a front opening is provided at the front end of the hull member, a side mounting groove is provided on the wall surface of the interior of the hull member located on one side of the front opening, two bottom mounting grooves are provided on the bottom side wall surface of the interior of the hull member located on the front opening, a built-in groove is provided on the inner bottom surface of the hull member, side pipes are provided on both sides of the hull member, a drainage bin is fixedly installed at the bottom of the hull member, a front grid plate is fixedly installed at the front end of the drainage bin, a rear mounting plate is fixedly installed at the tail of the drainage bin, and a propeller is fixedly installed on the rear mounting plate. When the equipment is traveling on water, the propeller can drive water to be introduced from the front of the drainage bin and discharged from its tail through the propeller, thereby providing driving power for the hull member.

[0005] Further, the garbage disposal device includes a rotating shaft. The number of the rotating shafts is two, and they are movably installed on the inner wall of the front entrance. A roller is fixedly sleeved on the rotating shaft. A conveyor belt is drivingly sleeved between the rollers. A movable shaft is movably installed on the inner wall of the front entrance. A limiting rotating plate is sleeved on the shaft body of the movable shaft. A front end plate is fixedly installed at the front end of the hull member. A conveyor motor is arranged in the side installation groove. The driving end of the conveyor motor is fixedly connected to the rear shaft body of the rotating shaft.

[0006] Further, a square plate is fixedly installed outside the side installation groove. Two arc-shaped barrel plates are symmetrically arranged on the built-in groove. The arc-shaped barrel plate has a double-layer cavity structure. Uniformly distributed filter holes are formed in the inner layer of the arc-shaped barrel plate. A stacked screw shaft is movably sleeved inside the filter holes. Uniformly distributed drain pipes are fixedly connected to the outer bottom end of the arc-shaped barrel plate. The pipe ends of the drain pipes are respectively fixedly connected to the side pipes on both sides. Pump machines are arranged at the joints of the drain pipes and the side pipes.

[0007] Further, pressure filter motors are fixedly connected to the shaft bodies of the stacked screw shafts. The pressure filter motors are fixedly installed inside the bottom installation groove. A sealing plate is fixedly installed outside the bottom installation groove. The shaft bodies of the stacked screw shafts are movably sleeved with the sealing plate. The end of the shaft body of the stacked screw shaft is movably sleeved with a shaft support plate. A fixing plate is fixedly installed outside the shaft support plate. The fixing plate is fixedly installed inside the hull member. A collection groove is formed at the rear of the fixing plate. When the hull member travels on the water area and the front end of the hull member touches the garbage floating objects on the water surface, the garbage will enter the inside of the front entrance. At this time, the conveyor motor drives the rotating shaft to drive the conveyor belt to operate. The conveyor belt operation drives the garbage into the hull interior of the hull member. At this time, driven by the pressure filter motor, the stacked screw shaft rotates and drives the garbage falling between the screw blades to perform a compression and propulsion movement. Under the extrusion movement of the screw blades of the stacked screw shaft, the water carried by the garbage will be filtered out and enter the cavity interior of the arc-shaped barrel plate through the filter holes. And driven by the pump machine, the water is pumped into the side pipe through the drain pipe and discharged to the outside of the hull through the side pipe. The garbage after pressure filtration is pushed out from the shaft support plate and enters the collection groove behind it for collection.

[0008] Further, the cleaning assembly includes a slide rail. The slide rail is formed on both sides of the rear bottom surface of the hull member. A shaft fixing plate is arranged at the front end of the slide rail. A tail vertical plate is arranged at the rear end of the slide rail. The shaft fixing plate and the tail vertical plate are both fixedly installed on the inner bottom surface of the hull member. A lead screw is movably sleeved between the shaft fixing plate and the tail vertical plate. A movable block is drivingly sleeved on the shaft body of the lead screw.

[0009] The cleaning motor is fixedly mounted on the upper end of the movable block, and the cleaning motor is fixedly mounted on the outer side of the tail vertical plate. A brush rod is fixedly mounted on the upper end of the movable block, and the brush rod contacts the inner wall surface of the slide rail. A tail sealing block is fixedly mounted on the tail of the hull member, and suction grid plates are fixedly mounted on the upper ends of the two sides of the hull member, and an air box is fixedly mounted on the upper ends of the suction grid plates, and a filter plate is fixedly mounted inside the air box, and a top plate is fixedly mounted on the upper end of the air box, and a uniformly distributed fan is fixedly mounted on the top plate. When the inner wall surface of the hull member is contaminated with pollutants, the cleaning motor can drive the screw to rotate, and the rotation of the screw drives the movable block to reciprocate, thereby driving the brush rod to clean the inner wall surface of the hull member. During cleaning, the fan starts to exhaust air outwardly, and the dust generated by cleaning can be sucked into the interior of the air box through the suction grid plate, the dust is intercepted and filtered by the filter plate, and the air flow is discharged outwardly from the fan.

[0010] Technical effects and advantages of the present invention: 1. The present invention is provided with a garbage disposal device. When the hull member is traveling on the water, when the front end of the hull member touches the floating garbage on the water surface, the garbage will enter the interior of the front passage. At this time, the conveying motor drives the rotating shaft to drive the conveyor belt to operate. The conveyor belt drives the garbage to enter the hull of the hull member. At this time, under the drive of the filter press motor, the stacking screw shaft rotates and drives the garbage that falls between the screw blades to perform compression and propulsion movement. Under the squeezing movement of the stacking screw shaft and the screw blades, the water carried by the garbage will be filtered out and enter the cavity of the arc cylinder plate through the filter hole. Under the drive of the pump, the water is pumped into the side pipe through the drainage pipe and discharged to the outside of the hull through the side pipe. After the filter is pressed, the garbage is pushed out from the shaft support plate and enters the collection tank behind it for collection. The device achieves the effect of salvaging and processing floating garbage on the water surface in this way.

[0011] 2. The present invention is provided with a cleaning assembly. When the inner wall of the hull part is contaminated with pollutants, the cleaning motor can drive the screw to rotate, and the rotation of the screw drives the movable block to reciprocate, thereby driving the brush rod to clean the inner wall of the hull part. During cleaning, the fan is started to exhaust air outwards, and the dust generated by cleaning can be sucked into the inside of the air box through the air suction grid plate, and the dust is intercepted and filtered by the filter plate, and the air flow is discharged outwards from the fan. The device uses this method to realize the cleaning function of the inner wall of the hull. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 It is a schematic diagram of the structure of the hull assembly of the present invention.

[0014] Figure 3It is a schematic diagram of the structure of the built-in groove of the present invention.

[0015] Figure 4 It is a schematic diagram of the bottom structure of the hull member of the present invention.

[0016] Figure 5 It is a schematic diagram of the stern structure of the hull member of the present invention.

[0017] Figure 6 It is a structural schematic diagram of the conveyor belt of the present invention.

[0018] Figure 7 It is a schematic diagram of the structure of the garbage disposal device of the present invention.

[0019] Figure 8 It is a schematic diagram of the cross-sectional structure of the garbage disposal device of the present invention.

[0020] Figure 9 It is a structural schematic diagram of the filter press motor of the present invention.

[0021] Figure 10 It is a schematic diagram of the cleaning component structure of the present invention.

[0022] The reference numerals are: 1. hull assembly; 101. hull member; 102. front passage; 103. side mounting groove; 104. bottom mounting groove; 105. internal groove; 106. side pipe; 107. drainage curved bin; 108. front grid plate; 109. rear mounting plate; 110. propeller; 2. garbage disposal device; 201. rotating shaft; 202. rotating roller; 203. conveyor belt; 204. movable shaft; 205. limit rotating plate; 206. front end plate; 207. conveying motor; 208. square plate; 209. Arc cylinder plate; 210, filter hole; 211, stacked screw shaft; 212, drain pipe; 213, pump; 214, filter press motor; 215, sealing plate; 216, shaft support plate; 217, fixed plate; 3, cleaning assembly; 301, slide rail; 302, shaft fixing plate; 303, tail vertical plate; 304, lead screw; 305, movable block; 306, cleaning motor; 307, brush rod; 308, tail sealing block; 309, suction grid plate; 310, air box; 311, filter plate; 312, top plate; 313, fan. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The garbage salvaging device based on an unmanned remote-controlled boat involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained without creative work by ordinary technicians in this field belong to the scope of protection of the present invention.

[0024] ReferenceFigure 1 The present invention provides a garbage salvaging device based on an unmanned remote-controlled boat, comprising a hull component 1, a garbage treatment device 2 is fixedly installed at the front end of the hull component 1, and a cleaning component 3 is fixedly installed at the rear end of the hull component 1; In this embodiment, the hull component 1 can sail in the water area, the garbage disposal device 2 can be used to salvage floating garbage on the water area, and the cleaning component 3 can realize the function of cleaning the hull component 1. The specific structure and working principle of the above components will be described in detail later.

[0025] Reference Figures 2 - 5 The hull assembly 1 includes a hull member 101, a front opening 102 is provided at the front end of the hull member 101, a side mounting groove 103 is provided on the wall surface of the interior of the hull member 101 located on one side of the front opening 102, two bottom mounting grooves 104 are provided on the bottom side wall surface of the interior of the hull member 101 located on the front opening 102, a built-in groove 105 is provided on the inner bottom surface of the hull member 101, side pipes 106 are provided on both sides of the hull member 101, a drainage bin 107 is fixedly installed at the bottom of the hull member 101, a front grid plate 108 is fixedly installed at the front end of the drainage bin 107, a rear mounting plate 109 is fixedly installed at the tail of the drainage bin 107, and a propeller 110 is fixedly installed on the rear mounting plate 109; In this embodiment, when the device is traveling on water, the propeller 110 can drive water flow from the front of the drainage chamber 107 and discharge it from the tail thereof, thereby providing driving power for the hull 101. The remaining features of the above structure will be described in detail later.

[0026] Reference Figures 6 - 9, the garbage disposal device 2 includes a rotating shaft 201. The number of the rotating shafts 201 is two and they are movably installed on the inner wall of the front channel 102. A roller 202 is fixedly sleeved on the rotating shaft 201. A conveyor belt 203 is drivingly sleeved between the rollers 202. A movable shaft 204 is movably installed on the inner wall of the front channel 102. A limiting rotating plate 205 is sleeved on the shaft body of the movable shaft 204. A front end plate 206 is fixedly installed at the front end of the hull member 101. A conveyor motor 207 is arranged in the side installation groove 103. The driving end of the conveyor motor 207 is fixedly connected to the rear shaft body of the rotating shaft 201. A square plate 208 is fixedly installed outside the side installation groove 103. Two arc-shaped cylinder plates 209 are symmetrically distributed on the built-in groove 105. The arc-shaped cylinder plate 209 has a double-layer cavity structure. Uniformly distributed filter holes 210 are formed in the inner layer of the arc-shaped cylinder plate 209. A stacked screw shaft 211 is movably sleeved inside the filter holes 210. Uniformly distributed drain pipes 212 are fixedly connected to the outer bottom end of the arc-shaped cylinder plate 209. The pipe ends of the drain pipes 212 are respectively fixedly connected to the side pipes 106 on both sides. Pump machines 213 are arranged at the joints of the drain pipes 212 and the side pipes 106. Press filter motors 214 are fixedly connected to the shaft bodies of the stacked screw shafts 211. The press filter motors 214 are fixedly installed inside the bottom installation groove 104. A sealing plate 215 is fixedly installed outside the bottom installation groove 104. The shaft bodies of the stacked screw shafts 211 are movably sleeved with the sealing plate 215. The end of the shaft body of the stacked screw shaft 211 is movably sleeved with a shaft support plate 216. A fixing plate 217 is fixedly installed outside the shaft support plate 216. The fixing plate 217 is fixedly installed inside the hull member 101. A collection groove is formed at the rear of the fixing plate 217; In this embodiment, when the hull member 101 travels on the water area and the front end of the hull member 101 touches the floating garbage on the water surface, the garbage will enter the inside of the front channel 102. At this time, the conveyor motor 207 drives the rotating shaft 201 to drive the conveyor belt 203 to operate. The operation of the conveyor belt 203 drives the garbage into the hull interior of the hull member 101. At this time, driven by the press filter motor 214, the stacked screw shaft 211 rotates and drives the garbage falling between the screw blades to perform a compression and propulsion movement. Under the extrusion movement of the screw blades of the stacked screw shaft 211, the water carried by the garbage will be pressed out and enter the cavity inside the arc-shaped cylinder plate 209 through the filter holes 210. Driven by the pump machine 213, the water is pumped into the side pipe 106 through the drain pipe 212 and discharged to the outside of the hull through the side pipe 106. The garbage after press filtration is pushed out from the shaft support plate 216 and enters the collection groove behind it for collection. The device realizes the effect of salvaging and treating the floating garbage on the water surface in this way.

[0027] Refer to Figure 10The cleaning component 3 includes a slide rail 301, which is opened on both sides of the rear end bottom surface of the hull part 101, and an axis fixing plate 302 is provided at the front end of the slide rail 301, and a tail vertical plate 303 is provided at the rear end of the slide rail 301. The axis fixing plate 302 and the tail vertical plate 303 are both fixedly installed on the inner bottom surface of the hull part 101, and a lead screw 304 is movably sleeved between the axis fixing plate 302 and the tail vertical plate 303, and a movable block 305 is movably sleeved on the shaft body of the lead screw 304, and the movable block 305 is movably sleeved on the slide rail 301, and a cleaning motor 306 is fixedly connected to the end of the shaft body of the lead screw 304. The cleaning motor 306 is fixedly mounted on the outer surface of the tail vertical plate 303, a brush rod 307 is fixedly mounted on the upper end of the movable block 305, and the brush rod 307 contacts the inner wall surface of the slide rail 301, a tail sealing block 308 is fixedly mounted on the tail of the hull member 101, and air suction grid plates 309 are fixedly mounted on the upper ends of both sides of the hull member 101, and an air box 310 is fixedly mounted on the upper end of the air suction grid plate 309, and a filter plate 311 is fixedly mounted inside the air box 310, and a top plate 312 is fixedly mounted on the upper end of the air box 310, and evenly distributed fans 313 are fixedly mounted on the top plate 312; In this embodiment, when the inner wall of the hull part 101 is contaminated with pollutants, the cleaning motor 306 can drive the screw 304 to rotate, and the rotation of the screw 304 drives the movable block 305 to reciprocate, thereby driving the brush rod 307 to clean the inner wall of the hull part 101. During cleaning, the fan 313 starts to exhaust air outward, and the dust generated by cleaning can be sucked into the interior of the air box 310 through the air intake grid 309. The dust is intercepted and filtered by the filter plate 311, and the air flow is discharged outward from the fan 313. The device uses this method to achieve the cleaning function of the inner wall of the hull.

[0028] Working principle of the present invention: When the hull member 101 travels on the water area, when the front end of the hull member 101 touches the floating garbage on the water surface, the garbage will enter the interior of the front channel opening 102. At this time, the conveyor motor 207 drives the rotating shaft 201 to drive the conveyor belt 203 to operate. The operation of the conveyor belt 203 drives the garbage into the hull interior of the hull member 101. At this time, driven by the filter press motor 214, the stacked screw shaft 211 rotates and drives the garbage falling between the screw blades to perform a compression and propulsion movement. Under the extrusion movement of the screw blades of the stacked screw shaft 211, the moisture carried by the garbage will be filtered out and enter the cavity interior of the arc-shaped cylinder plate 209 through the filter holes 210. And driven by the pump 213, the moisture is pumped into the side pipe 106 through the drain pipe 212 and discharged to the outside of the hull through the side pipe 106. The garbage after filtration is pushed out from the shaft support plate 216 and enters the collection tank behind it for collection. The device realizes the effect of salvaging and treating the floating garbage on the water surface in this way. When the inner wall surface of the hull member 101 is contaminated with pollutants, the cleaning motor 306 can drive the lead screw 304 to rotate. The rotation of the lead screw 304 drives the movable block 305 to reciprocate, thereby driving the brush rod 307 to clean the inner wall surface of the hull member 101. During cleaning, the fan 313 starts to exhaust outward. The dust generated by cleaning can be sucked into the interior of the air box 310 through the air suction grid plate 309. The dust is intercepted and filtered by the filter plate 311, and the air flow is discharged outward from the fan 313. The device realizes the cleaning function of the inner wall surface of the hull in this way.

[0029] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change; Second: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A garbage salvaging device based on an unmanned remote-controlled boat, characterized in that: It includes a hull assembly (1), a garbage disposal device (2) is fixedly installed at the front end of the hull assembly (1), and a cleaning assembly (3) is fixedly installed at the rear end of the hull assembly (1). The hull assembly (1) includes a hull member (101). A front access opening (102) is formed at the front end of the hull member (101). A side installation groove (103) is formed on the inner wall of the hull member (101) on one side of the front access opening (102). Two bottom installation grooves (104) are formed on the bottom side wall of the hull member (101) at the front access opening (102). An internal groove (105) is formed on the inner bottom surface of the hull member (101). Side pipes (106) are formed on both sides of the hull member (101). A drainage curved bin (107) is fixedly installed at the bottom of the hull member (101). A front grille plate (108) is fixedly installed at the front end of the drainage curved bin (107). A rear mounting plate (109) is fixedly installed at the tail of the drainage curved bin (107). A paddle machine (110) is fixedly installed on the rear mounting plate (109).

2. The garbage salvaging device based on an unmanned remote-controlled boat according to claim 1, characterized in that: The garbage disposal device (2) includes a rotating shaft (201). The number of the rotating shafts (201) is two and they are movably installed on the inner wall of the front access opening (102). A roller (202) is fixedly sleeved on the rotating shaft (201). A conveyor belt (203) is drivingly sleeved between the rollers (202). A movable shaft (204) is movably installed on the inner wall of the front access opening (102). A limiting rotating plate (205) is sleeved on the shaft body of the movable shaft (204). A front end plate (206) is fixedly installed at the front end of the hull member (101). A conveyor motor (207) is arranged in the side installation groove (103). The driving end of the conveyor motor (207) is fixedly connected to the rear shaft body of the rotating shaft (201).

3. The garbage collection device based on an unmanned remote control boat according to claim 1, characterized in that: A square plate (208) is fixedly installed outside the side installation groove (103). Two arc-shaped barrel plates (209) are symmetrically arranged on the internal groove (105). The arc-shaped barrel plates (209) are of a double-layer cavity structure. Uniformly distributed filter holes (210) are formed in the inner layer of the arc-shaped barrel plates (209). A stacked screw shaft (211) is movably sleeved inside the filter holes (210). Uniformly distributed drain pipes (212) are fixedly connected to the outer bottom ends of the arc-shaped barrel plates (209). The pipe ends of the drain pipes (212) are respectively fixedly connected to the side pipes (106) on both sides. Pump machines (213) are arranged at the connection positions of the drain pipes (212) and the side pipes (106).

4. The garbage collection device based on an unmanned remote control boat according to claim 3, characterized in that: The shaft bodies of the stacked screw shafts (211) are fixedly connected with pressure filtration motors (214). The pressure filtration motors (214) are fixedly installed inside the bottom installation grooves (104). The outer sides of the bottom installation grooves (104) are fixedly installed with sealing plates (215). The shaft bodies of the stacked screw shafts (211) are movably sleeved with the sealing plates (215). The ends of the shaft bodies of the stacked screw shafts (211) are movably sleeved with shaft support plates (216). The outer sides of the shaft support plates (216) are fixedly installed with fixing plates (217). The fixing plates (217) are fixedly installed inside the hull member (101). A collection groove is formed at the rear side of the fixing plate (217).

5. The garbage collection device based on an unmanned remote control boat according to claim 1, wherein: The cleaning assembly (3) includes slide rails (301). The slide rails (301) are formed on both sides of the rear bottom surface of the hull member (101). A shaft fixing plate (302) is provided at the front end of the slide rails (301). A tail vertical plate (303) is provided at the rear end of the slide rails (301). The shaft fixing plate (302) and the tail vertical plate (303) are both fixedly installed on the inner bottom surface of the hull member (101). A lead screw (304) is movably sleeved between the shaft fixing plate (302) and the tail vertical plate (303). A movable block (305) is drivingly sleeved on the shaft body of the lead screw (304).

6. The garbage collection device based on an unmanned remote control boat according to claim 5, wherein: The movable block (305) is movably sleeved on the slide rails (301). The end of the shaft body of the lead screw (304) is fixedly connected with a cleaning motor (306). The cleaning motor (306) is fixedly installed on the outer side surface of the tail vertical plate (303). A brush bar (307) is fixedly installed at the upper end of the movable block (305). The brush bar (307) is in contact with the inner side wall surface of the slide rails (301). A tail sealing block (308) is fixedly installed at the tail of the hull member (101). Suction grille plates (309) are fixedly installed at the upper ends of both sides of the hull member (101). An air box (310) is fixedly installed at the upper end of the suction grille plates (309). A filter plate (311) is fixedly installed inside the air box (310). A top plate (312) is fixedly installed at the upper end of the air box (310). Uniformly distributed fans (313) are fixedly installed on the top plate (312).

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