CN113338208A - Runway cleaning equipment for airstrip - Google Patents

Runway cleaning equipment for airstrip Download PDF

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Publication number
CN113338208A
CN113338208A CN202110627204.8A CN202110627204A CN113338208A CN 113338208 A CN113338208 A CN 113338208A CN 202110627204 A CN202110627204 A CN 202110627204A CN 113338208 A CN113338208 A CN 113338208A
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CN
China
Prior art keywords
arc
plate
fixedly connected
recovery
mounting plate
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Pending
Application number
CN202110627204.8A
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Chinese (zh)
Inventor
王宇灿
王彬
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Binzhou University
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Binzhou University
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Publication date
Application filed by Binzhou University filed Critical Binzhou University
Priority to CN202110627204.8A priority Critical patent/CN113338208A/en
Publication of CN113338208A publication Critical patent/CN113338208A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/101Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/0855Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools moved rectilinearly, e.g. scabblers
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/14Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/101Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
    • E01H1/103Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers in which the soiled loosening or washing liquid is removed, e.g. by suction

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The invention provides runway cleaning equipment for an airstrip, and relates to the technical field of airstrip cleaning. The runway cleaning device for an airstrip comprises: the mounting plate is provided with two symmetrically arranged rollers; the chemical agent flushing mechanism is connected with the mounting plate; and the negative pressure recovery mechanism is connected with the mounting plate, and a collection port of the negative pressure recovery mechanism is arranged opposite to a spray port of the chemical agent flushing mechanism. The runway cleaning equipment for the airstrip provided by the invention has the advantage of reducing the pollution to the surrounding environment.

Description

Runway cleaning equipment for airstrip
Technical Field
The invention relates to the technical field of runway cleaning, in particular to runway cleaning equipment for an airstrip.
Background
For an airport, runways are the key facilities for its operation, and the cleanliness of the runway cleaning in the airport affects whether the airplane can land safely. The high temperature is caused by the friction contact of the tire of the airplane with the surface of the runway when the tire of the airplane lands at a high speed, the rubber melt formed by instant melting of the rubber of the tire is adhered to the grain of the runway, the rubber layer of the runway is continuously thickened along with the increase of the friction times and the lapse of time, the friction coefficient of the runway is reduced, the braking performance of the airplane is influenced, particularly, the friction force is obviously reduced due to the viscosity of the rubber on the runway under the wet state of the runway, and the safe landing of the airplane is directly influenced.
It is known that the treatment of the rubber layer of the tyre on the runway of an airport can be carried out by spraying a chemical agent solution on the runway of the airport; at present, when the tire glue layer on the airport runway is treated by spraying the chemical agent solution, the sprayed chemical agent solution directly flows into a drainage pipeline along the runway after reacting with the tire glue layer on the airport runway, and the chemical agent solution after being used cannot be recovered, thereby easily causing pollution to the surrounding environment.
Therefore, there is a need for a new runway cleaning device for airstrips that solves the above-mentioned problems.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a runway cleaning device for an airstrip that reduces pollution to the surrounding environment.
The runway cleaning device for the airstrip provided by the invention comprises: the mounting plate is provided with two symmetrically arranged rollers; the chemical agent flushing mechanism is connected with the mounting plate; and the negative pressure recovery mechanism is connected with the mounting plate, and a collection port of the negative pressure recovery mechanism is arranged opposite to a spray port of the chemical agent flushing mechanism.
Preferably, the chemical agent flushing mechanism comprises a chemical agent box, the upper surface of the mounting plate is fixedly connected with the chemical agent box, the upper surface of the chemical agent box is fixedly connected with a liquid inlet pipe communicated with the interior of the chemical agent box, and the opening of the liquid inlet pipe is in threaded sealing connection with a sealing cover; the upper surface of the chemical agent box is provided with a water pump, a water inlet of the water pump is connected with a water suction pipe, and the water suction pipe penetrates through the chemical agent box and extends to the inner bottom of the chemical agent box; the water outlet of the water pump is connected with one end of a flow guide pipe, the other end of the flow guide pipe is connected with a liquid separation plate, and a booster pump is installed on the flow guide pipe; the outer surface of the liquid separation plate is provided with a plurality of nozzles, and the liquid separation plate is arranged on the fixing plate; the fixed plate is fixedly connected with the lower surface of the mounting plate.
Preferably, the negative pressure recovery mechanism comprises an arc-shaped recovery cover, the lower surface of the mounting plate is elastically connected with the arc-shaped recovery cover, and an opening of the arc-shaped recovery cover is arranged towards the nozzle; the length of the arc-shaped recovery cover is far greater than that of the liquid separation plate, and the center line of the liquid separation plate is coplanar with the center line of the arc-shaped recovery cover; the surface of the arc-shaped recovery cover opposite to the nozzle is fixedly connected with a connecting pipe which is mutually communicated with the interior of the arc-shaped recovery cover, the connecting pipe is fixedly connected with one end of a recovery pipe, the other end of the recovery pipe is connected with a feed inlet close to the top of the recovery box, and a negative pressure pump is arranged on the recovery pipe; the recycling bin is fixedly connected with the upper surface of the mounting plate.
Preferably, the negative pressure recovery mechanism further comprises an arc-shaped extension plate, and the lower end of the arc-shaped recovery cover elastically rotates to form the arc-shaped extension plate with an opening facing the arc-shaped recovery cover; the arc extends the board and retrieves the junction smooth transition of cover with the arc, and the arc is kept away from to the arc extension board and is retrieved the one end of cover and be connected with and play the fender area that blocks.
Preferably, the negative pressure recovery mechanism further comprises an arc-shaped baffle, the arc-shaped recovery cover is internally and fixedly connected with the arc-shaped baffle with a downward opening, and the lower surface of the arc-shaped baffle is fixedly connected with a plurality of uniformly distributed buffer strips; the connecting part of the connecting pipe and the arc-shaped recovery cover is positioned below the arc-shaped baffle.
Preferably, the mounting plate is connected with a mixing mechanism for mixing the waste liquid with the chemical agent solution; the mixing mechanism comprises a mixing pump, the upper surface of the mounting plate is fixedly connected with the mixing pump through a support, a water inlet of the mixing pump is connected with one end of a water inlet pipe, and the other end of the water inlet pipe is connected with a liquid outlet at the bottom of the recovery tank; a water outlet of the mixing pump is connected with a liquid conveying pipe, a one-way valve is installed on the liquid conveying pipe, and one end of the liquid conveying pipe, which is far away from the mixing pump, is connected with a water inlet at one side of the mixing box; the mixing box is fixedly connected with the mounting plate, and a plurality of layers of baffle plates which are arranged in a staggered mode are fixedly connected in the mixing box; the honeycomb duct is connected with the water inlet at the upper end of the mixing box, the water outlet at the lower surface of the mixing box is connected with one end of the inner spiral mixing pipe, and the other end of the inner spiral mixing pipe is connected with the water inlet of the liquid separating plate.
Preferably, a filtering mechanism is connected in the recycling bin and comprises a filtering plate, a plurality of filtering plates are fixedly connected in the recycling bin, and a plurality of filtering holes are formed in the filtering plates; a movable column is movably connected in the filtering hole; a plurality of bottom plates are arranged below the filter plate and correspond to the filter holes one by one; the bottom plate is connected with the filter through connecting the rope, and the last fixed surface of bottom plate is connected with the activity post, and the activity post runs through the setting of the filtration pore that corresponds.
Preferably, the mounting plate is connected with a pretreatment mechanism for pretreating a tire rubber layer, the pretreatment mechanism comprises a connecting rod, the mounting plate is provided with a through hole which is vertically communicated, and the through hole is internally and slidably connected with the connecting rod which is arranged in a penetrating manner; the upper end of the connecting rod is fixedly connected with a top plate, and the upper surface of the mounting plate is provided with a driving assembly for driving the top plate to reciprocate in the vertical direction; the lower extreme elastic connection of connecting rod has the base, and the lower fixed surface of base is connected with a plurality of evenly distributed's the nail that punches.
Preferably, the driving assembly comprises a motor, the upper surface of the mounting plate is fixedly connected with the motor, the output end of the motor is fixedly connected with a turntable, the surface of the turntable, which is opposite to the motor, is fixedly connected with a bump, and the bump is arranged close to the edge of the turntable; the lug is connected in a strip-shaped groove formed in the center of the moving frame in a sliding mode, the upper surface of the moving frame is fixedly connected with the top plate through a fixing rod, a side lug is fixedly connected to the side face of the moving frame and is connected with a vertically arranged sliding rail in a sliding mode, and the sliding rail is fixedly connected with the upper surface of the mounting plate.
Preferably, the pretreatment mechanism further comprises an air blowing assembly, the air blowing assembly comprises an air heater, the upper surface of the mounting plate is fixedly connected with the air heater, an air outlet of the air heater is connected with one end of the air guide pipe, and the other end of the air guide pipe penetrates through the mounting plate and is connected with the corrugated pipe; the lower end of the corrugated pipe is connected with an air inlet on the upper surface of the air distribution disc; divide the lower fixed surface of gas dish and base to be connected, and the lower surface mounting who divides the gas dish has a plurality of evenly distributed's play gas nozzle.
Compared with the related art, the runway cleaning equipment for the runway has the following beneficial effects:
1. the negative pressure recovery mechanism can recover the waste liquid sprayed by the chemical agent flushing mechanism, so that the pollution to the surrounding environment is reduced, and meanwhile, the waste liquid is recovered, so that the subsequent treatment of the waste liquid is facilitated, and the use of the device is facilitated;
2. the waste liquid collected in the recovery tank can be sent into the mixing tank by the operation of the mixing pump; chemical agent solution in the chemical agent box also enters the mixing box through the guide pipe, waste liquid and the chemical agent solution are mixed in the mixing box, and mixed liquid enters the liquid separating plate through the inner spiral mixing pipe and is sprayed out through the nozzle; the waste liquid can be sprayed out again along with the chemical agent solution, and certain effective components are remained in the waste liquid, so that the use amount of the chemical agent solution is reduced, and the use cost of the device is reduced;
3. the top plate can be driven to reciprocate in the vertical direction through the driving assembly, the base and the punching nails can reciprocate in the vertical direction under the action of the connecting rods, the tire glue layer on the runway can be punched through the punching nails, the surface area of the tire glue layer on the runway is increased, the contact area of the tire glue layer on the runway and a chemical agent solution is increased, and therefore the speed and the quality of the treatment of the tire glue layer on the runway are improved;
4. the hot air blower can blow hot air out of the air nozzle, and the tire rubber layer on the runway can be softened by the hot air, so that the tire rubber layer piece on the runway can be punched; softening the tire glue layer can also increase the mobility of the tire glue layer on the runway, so that the diffusion of the tire glue layer is increased, the surface area of the tire glue layer is increased, the contact of the tire glue layer and a chemical agent solution is facilitated, and the treatment of the tire glue layer is further facilitated.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of the runway cleaning apparatus for an airstrip provided by the present invention;
FIG. 2 is a schematic structural diagram of the thickness detection mechanism shown in FIG. 1;
FIG. 3 is a schematic diagram of the pretreatment mechanism shown in FIG. 1;
FIG. 4 is a schematic structural view of the chemical flushing mechanism of FIG. 1;
FIG. 5 is a schematic view of a portion of the mixing mechanism of FIG. 1;
FIG. 6 is a schematic illustration in partial cross-sectional view of the mixing mechanism of FIG. 1;
FIG. 7 is a schematic three-dimensional oblique view of the runway cleaning device of FIG. 1;
FIG. 8 is a schematic structural view of the negative pressure recovery mechanism shown in FIG. 7;
FIG. 9 is a schematic view of a portion of the negative pressure recovery mechanism shown in FIG. 8;
fig. 10 is a schematic view of the filter mechanism shown in fig. 8.
Reference numbers in the figures: 1. a thickness detection mechanism; 11. a support plate; 12. a distance sensor; 13. a column; 14. a U-shaped seat; 15. a rotating roller; 16. a pressure spring; 2. a pretreatment mechanism; 21. a drive assembly; 211. a lateral ear; 212. a slide rail; 213. a bump; 214. a motion frame; 215. a turntable; 216. an electric motor; 22. a top plate; 23. a connecting plate; 24. a spring; 25. a base; 26. punching nails; 27. a blowing assembly; 271. an air duct; 272. a hot air blower; 273. an air outlet nozzle; 274. a bellows; 28. a connecting rod; 3. a connecting mechanism; 31. an end plate; 32. an L-shaped plate; 4. mounting a plate; 5. a roller; 6. a chemical agent flushing mechanism; 61. a water pump; 62. a booster pump; 63. a flow guide pipe; 64. a fixing plate; 65. a surrounding baffle sheet; 66. a liquid inlet pipe; 67. a chemical agent tank; 68. a liquid separation plate; 69. a nozzle; 7. a negative pressure recovery mechanism; 71. a recycling bin; 72. a recovery pipe; 73. a negative pressure pump; 74. a connecting pipe; 75. an arc-shaped recovery cover; 76. an arc-shaped baffle plate; 77. an arc-shaped extension plate; 78. a buffer strip; 79. a containment band; 8. a mixing mechanism; 81. a water inlet pipe; 82. a mixing pump; 83. a one-way valve; 84. a transfusion tube; 85. a partition plate; 86. a mixing box; 87. an internal helical mixing tube; 9. a filtering mechanism; 91. a movable post; 92. a base plate; 93. connecting ropes; 94. a filter plate.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1 to 10 in combination, a runway cleaning apparatus for an airstrip includes: the mounting plate 4 is provided with two symmetrically arranged rollers 5; the chemical agent flushing mechanism 6 is connected with the mounting plate 4; and the negative pressure recovery mechanism 7 is connected with the mounting plate 4, and a collection port of the negative pressure recovery mechanism 7 is arranged opposite to a spray port of the chemical agent flushing mechanism 6.
Need to explain: the chemical agent washing mechanism 6 can spray chemical agent solution for cleaning the rubber layer of the runway tire, and the chemical agent solution is used for treating the rubber layer of the runway tire to ensure the friction coefficient of the runway and further ensure the landing safety of the airplane;
it is also stated that: the tire glue layer on the runway is treated by the chemical agent solution, so that the damage to the runway surface is reduced, and the influence on the friction coefficient of the runway surface is reduced;
it is also stated that: mechanism 7 is retrieved through the negative pressure can be retrieved chemical agent and wash mechanism 6 spun waste liquid to reduce the pollution to the surrounding environment, simultaneously, retrieve the waste liquid, thereby be favorable to the subsequent processing to the waste liquid, be favorable to the use of device.
Referring to fig. 1, 4 and 7, the chemical agent flushing mechanism 6 includes a chemical agent tank 67, the chemical agent tank 67 is fixedly connected to the upper surface of the mounting plate 4, a liquid inlet pipe 66 is fixedly connected to the upper surface of the chemical agent tank 67, the liquid inlet pipe is communicated with the interior of the chemical agent tank 67, and a sealing cover is hermetically connected to an opening of the liquid inlet pipe 66 through a thread; the upper surface of the chemical agent box 67 is provided with a water pump 61, the water inlet of the water pump 61 is connected with a water suction pipe, and the water suction pipe penetrates through the chemical agent box 67 and extends to the inner bottom of the chemical agent box 67; the water outlet of the water pump 61 is connected with one end of the flow guide pipe 63, the other end of the flow guide pipe 63 is connected with the liquid separation plate 68, and the flow guide pipe 63 is provided with the booster pump 62; a plurality of nozzles 69 are mounted on the outer surface of the liquid distribution plate 68, and the liquid distribution plate 68 is mounted on the fixing plate 64; the fixing plate 64 is fixedly connected to the lower surface of the mounting plate 4.
Need to explain: chemical agent solution (sol) for dissolving a tire rubber layer can be injected into the chemical agent tank 67 through the liquid inlet pipe 66; the control valve is opened, then the water pump 61 works, chemical agent solution in the chemical agent box 67 can be sprayed out through the plurality of nozzles 69, and the air outlet direction of the nozzles 69 is arranged obliquely downwards; the chemical solution sprayed through the nozzle 69 may treat the tire layer on the runway.
Referring to fig. 4, the chemical agent flushing mechanism 6 further includes a baffle plate 65, a plurality of baffle plates 65 arranged in a staggered manner are fixedly connected to the lower surface of the fixing plate 64, and the lower surface of the baffle plate 65 contacts with the runway.
Need to explain: a plurality of fence pieces 65 play the effect that blocks, reduce the probability that chemical agent solution and chemical agent solution waste liquid splashed away from the gap between fixed plate 64 and the runway, reduce the waste of chemical agent solution, are favorable to the collection to chemical agent solution waste liquid simultaneously.
Referring to fig. 1, 7, 8 and 9, the negative pressure recovery mechanism 7 includes an arc-shaped recovery cover 75, the lower surface of the mounting plate 4 is elastically connected with the arc-shaped recovery cover 75, and an opening of the arc-shaped recovery cover 75 is disposed toward the nozzle 69; the length of the arc-shaped recovery cover 75 is far longer than that of the liquid distribution plate 68, and the center line of the liquid distribution plate 68 is coplanar with the center line of the arc-shaped recovery cover 75; the surface of the arc-shaped recovery cover 75 opposite to the nozzle 69 is fixedly connected with a connecting pipe 74 communicated with the interior of the arc-shaped recovery cover, the connecting pipe 74 is fixedly connected with one end of a recovery pipe 72, the other end of the recovery pipe 72 is connected with a feed inlet of the recovery box 71 close to the top of the recovery box, and a negative pressure pump 73 is arranged on the recovery pipe 72; the recovery tank 71 is fixedly connected with the upper surface of the mounting plate 4.
Need to explain: the chemical agent solution sprayed from the nozzle 69 contacts and dissolves the tire rubber layer on the runway, and waste liquid is generated after dissolution; the bottom of the arc-shaped recovery cover 75 is arranged close to the runway, and the arc-shaped recovery cover 75 can play a role in blocking, so that waste liquid is prevented from flying randomly; due to the arc-shaped structure of the arc-shaped recovery cover 75, and the opening of the arc-shaped recovery cover 75 faces the nozzle 69, waste liquid can enter the arc-shaped recovery cover 75; the arc-shaped recovery cover 75 is elastically connected with the mounting plate 4, so that the arc-shaped recovery cover 75 is prevented from rigidly colliding with the runway, and the damage probability of the arc-shaped recovery cover 75 is reduced;
it is also stated that: the length of the arc-shaped recovery cover 75 is longer than that of the liquid separation plate 68, so that the liquid spraying range of the nozzle 69 is completely positioned in the arc-shaped recovery cover 75, and the existence and the area of waste liquid are also completely positioned in the arc-shaped recovery cover 75, so that the waste liquid can more thoroughly enter the arc-shaped recovery cover 75;
it is also stated that: the negative pressure pump 73 works to generate negative pressure at the opening of the connecting pipe 74, so that the waste liquid enters the connecting pipe 74 under the action of the negative pressure and then enters the recovery box 71 through the guide of the recovery pipe 72, thereby realizing the recovery of the waste liquid, reducing the random flowing probability of the waste liquid and further reducing the pollution to the surrounding environment; meanwhile, the waste liquid is recycled, so that the subsequent treatment of the waste liquid can be facilitated, and the use difficulty of the device is reduced.
Referring to fig. 9, the negative pressure recovery mechanism 7 further includes an arc-shaped extension plate 77, and the lower end of the arc-shaped recovery cover 75 is elastically rotated by the arc-shaped extension plate 77 having an opening facing the arc-shaped recovery cover 75; arc extension board 77 retrieves the junction smooth transition of cover 75 with the arc, and arc extension board 77 keeps away from the one end that the arc retrieved cover 75 and is connected with and plays the enclosure area 79 that blocks.
Need to explain: the arc-shaped extension plate 77 can be in close contact with the runway, the gap between the lower end of the arc-shaped recovery cover 75 and the runway can be shielded through the arc-shaped extension plate 77, the probability that waste liquid flows out from the gap between the lower end of the arc-shaped recovery cover 75 and the runway is reduced, the waste liquid is recovered more thoroughly, and the pollution to the surrounding environment is further reduced;
it is also stated that: enclose the lower extreme of keeping off area 79 and take the runway contact, enclose the effect that the keeping off area 79 also played and blockked, further reduce the waste liquid from arc retrieve the probability that the gap between cover 75 lower extreme and the runway flows, and then more thorough to the recovery of waste liquid.
Referring to fig. 9, the lower end of the arc recycling cover 75 is elastically rotated to form an arc extending plate 77 with an opening facing the arc recycling cover 75, specifically, the lower end of the arc recycling cover 75 is fixedly connected to one end of an arc elastic connecting plate, and the other end of the arc elastic connecting plate is fixedly connected to the arc extending plate 77.
Need to explain: when arc extension board 77 and runway contact, arc elastic connection piece was compressed this moment, under the effect of arc elastic connection piece elastic recovery power for arc extension board 77 and runway in close contact with, and arc elastic connection piece makes arc extension board 77 retrieve cover 75 smooth connection with the arc, is favorable to passing through of rivers.
Referring to fig. 9, the negative pressure recovery mechanism 7 further includes an arc-shaped baffle 76, an arc-shaped baffle 76 with a downward opening is fixedly connected in the arc-shaped recovery cover 75, and a plurality of buffer strips 78 which are uniformly distributed are fixedly connected to a lower surface of the arc-shaped baffle 76; the connection of the connection tube 74 to the arc recovery hood 75 is located below the arc baffle 76.
Need to explain: the arc-shaped baffle 76 plays a role in blocking, and waste liquid can be prevented from moving upwards along the arc-shaped recovery cover 75 through the arc-shaped baffle 76, so that the waste liquid can enter the connecting pipe 74 more, and the recovery of the waste liquid is facilitated;
it is also stated that: buffering strip 78 plays the effect of buffering, avoids the waste liquid direct impact cowl 76 to reduce the probability that the waste liquid splashes, further be favorable to the recovery of waste liquid.
Referring to fig. 1, 5 and 6, the mounting plate 4 is connected with a mixing mechanism 8 for mixing the waste liquid with the chemical agent solution; the mixing mechanism 8 comprises a mixing pump 82, the upper surface of the mounting plate 4 is fixedly connected with the mixing pump 82 through a support, a water inlet of the mixing pump 82 is connected with one end of a water inlet pipe 81, and the other end of the water inlet pipe 81 is connected with a liquid outlet at the bottom of the recovery tank 71; a water outlet of the mixing pump 82 is connected with a liquid conveying pipe 84, a one-way valve 83 is installed on the liquid conveying pipe 84, and one end of the liquid conveying pipe 84, which is far away from the mixing pump 82, is connected with a water inlet at one side of the mixing box 86; the mixing box 86 is fixedly connected with the mounting plate 4, and a plurality of layers of baffle plates 85 which are arranged in a staggered mode are fixedly connected in the mixing box 86; the draft tube 63 is connected with the water inlet at the upper end of the mixing box 86, the draft tube 63 is also provided with a one-way valve, the water outlet at the lower surface of the mixing box 86 is connected with one end of the inner spiral mixing tube 87, and the other end of the inner spiral mixing tube 87 is connected with the water inlet of the liquid separating plate 68.
Need to explain: the waste liquid collected in the recovery tank 71 can be sent to the mixing tank 86 by the operation of the mixing pump 82; chemical agent solution in the chemical agent box 67 also enters the mixing box 86 through the guide pipe 63, waste liquid and the chemical agent solution are mixed in the mixing box 86, and mixed liquid enters the liquid separation plate 68 through the inner spiral mixing pipe 87 and is sprayed out through the nozzle 69;
it is also stated that: the waste liquid can be sprayed out again along with the chemical agent solution, and certain effective components are remained in the waste liquid, so that the use amount of the chemical agent solution is reduced, and the use cost of the device is reduced;
it is also stated that: the stroke of the waste liquid and the chemical agent solution in the mixing box 86 can be increased through the partition plate 85, so that the contact probability of the waste liquid and the chemical agent solution is increased, the mixing of the waste liquid and the chemical agent solution is facilitated, and the mixing of the mixed liquid is more uniform;
it is also stated that: inside being spiral channel of interior spiral mixing tube 87, waste liquid and chemical agent solution can be in spiral circulation in spiral channel, further is favorable to the mixture of waste liquid and chemical agent solution for the mixture is more even for the mixture of mixed liquid.
Referring to fig. 8 and 10, a filtering mechanism 9 is connected in the recycling bin 71, the filtering mechanism 9 includes a filtering plate 94, a plurality of filtering plates 94 are fixedly connected in the recycling bin 71, and a plurality of filtering holes are formed in the filtering plate 94; the filtering hole is movably connected with a movable column 91.
Need to explain: impurities in the waste liquid can be filtered through the filter plate 94, the probability that the impurities enter the mixing box 86 is reduced, the probability that the nozzle 69 is blocked is reduced, and the use reliability of the device is improved;
referring to fig. 10, a movable column 91 is movably connected in the filtering hole, specifically, a plurality of bottom plates 92 are arranged below the filtering plate 94, and the bottom plates 92 correspond to the filtering holes one by one; the bottom plate 92 is connected with the filter plate 94 through a connecting rope 93, the upper surface of the bottom plate 92 is fixedly connected with a movable column 91, and the movable column 91 penetrates through the corresponding filter hole.
Need to explain: when the waste liquid passes through the through holes of the filter plate 94, the waste liquid can contact the bottom plate 92, and the bottom plate 92 can move due to the soft connecting rope 93, so that the movable columns 91 are driven to move synchronously, and then the movable columns 91 can move in the filter holes, so that the probability of blockage of the filter holes is reduced, and the use reliability of the device is improved;
referring to fig. 7, a cleaning door is installed on an outer surface of the recovery tank 71.
Need to explain: the cleaning of the filter plate 94 is facilitated by opening the cleaning door, reducing the difficulty of use of the device.
Referring to fig. 1 and 3, the mounting plate 4 is connected with a pretreatment mechanism 2 for pretreating a tire rubber layer, the pretreatment mechanism 2 comprises a connecting rod 28, the mounting plate 4 is provided with a through hole which is through up and down, and the connecting rod 28 which is arranged through the through hole is slidably connected in the through hole; the upper end of the connecting rod 28 is fixedly connected with a top plate 22, and the upper surface of the mounting plate 4 is provided with a driving assembly 21 for driving the top plate 22 to reciprocate in the vertical direction; the lower end of the connecting rod 28 is elastically connected with a base 25, and the lower surface of the base 25 is fixedly connected with a plurality of punching nails 26 which are uniformly distributed.
Need to explain: can drive roof 22 at vertical direction reciprocating motion through drive assembly 21, under the effect of connecting rod 28 for base 25 and nail 26 that punches are at vertical direction reciprocating motion, can punch the tire glue film on the runway through nail 26 that punches, increase the surface area of tire glue film on the runway, increase the area of tire glue film and the contact of chemical solution on the runway, thereby improve speed and the quality of handling the tire glue film on the runway.
Referring to fig. 3, a base 25 is elastically connected to the lower end of the connecting rod 28, specifically, a connecting plate 23 is fixedly connected to the lower surface of the connecting rod 28, the connecting plate 23 is located above the base 25, and the connecting plate 23 is elastically connected to the upper surface of the base 25 through a spring 24; the upper surface of the base 25 is fixedly connected with a limiting rod, and the limiting rod penetrates through the connecting plate 23 and is connected with the connecting plate 23 in a sliding mode.
Need to explain: through the deformation of spring 24, can avoid punching nail 26 to take place the rigidity collision to reduce the probability that punching nail 26 damaged, improve the life of device.
Referring to fig. 3 and 7, the driving assembly 21 includes a motor 216, the motor 216 is fixedly connected to the upper surface of the mounting plate 4, a rotary disc 215 is fixedly connected to an output end of the motor 216, a projection 213 is fixedly connected to a surface of the rotary disc 215 opposite to the motor 216, and the projection 213 is disposed near an edge of the rotary disc 215; the lug 213 is slidably connected in a strip-shaped groove formed in the center of the moving frame 214, the upper surface of the moving frame 214 is fixedly connected with the top plate 22 through a fixing rod, the side surface of the moving frame 214 is fixedly connected with a side lug 211, the side lug 211 is slidably connected with a vertically arranged sliding rail 212, and the sliding rail 212 is fixedly connected with the upper surface of the mounting plate 4.
Need to explain: the motor 216 works to rotate the turntable 215, so that the moving frame 214 reciprocates in the vertical direction under the action of the lug 213, and the connecting rod drives the top plate 22 to synchronously move, so that the top plate 22 is driven to reciprocate in the vertical direction; the sliding rail 212 plays a role of limiting.
Referring to fig. 3, the pretreatment mechanism 2 further comprises an air blowing assembly 27, the air blowing assembly 27 comprises a hot air blower 272, the upper surface of the mounting plate 4 is fixedly connected with the hot air blower 272, an air outlet of the hot air blower 272 is connected with one end of an air duct 271, and the other end of the air duct 271 penetrates through the mounting plate 4 and is connected with a corrugated pipe 274; the lower end of the corrugated pipe 274 is connected with an air inlet on the upper surface of the air distribution plate; divide the air disk and the lower surface fixed connection of base 25, and the lower surface of air disk installs a plurality of evenly distributed's play gas nozzle 273.
Need to explain: the hot air blower 272 can work to enable the air nozzle 273 to blow out hot air, and the hot air can soften the tire rubber layer on the runway, so that the tire rubber layer piece on the runway can be perforated; softening the tire glue layer can also increase the mobility of the tire glue layer on the runway, so that the diffusion of the tire glue layer is increased, the surface area of the tire glue layer is increased, the contact of the tire glue layer and a chemical agent solution is facilitated, and the treatment of the tire glue layer is further facilitated.
Referring to fig. 1 and 2, the mounting plate 4 is connected with a thickness detection mechanism 1 for detecting the thickness of a tire rubber layer on an airfield runway, the thickness detection mechanism 1 comprises a stand column 13, the mounting plate 4 is provided with an opening which is through up and down, and the stand column 13 which is through in sliding connection is arranged in the opening; the upper surface of the upright column 13 is fixedly connected with a support plate 11, the support plate 11 is elastically connected with the upper surface of the mounting plate 4 through a pressure spring 16, and the lower surface of the support plate 11 is fixedly connected with a distance sensor 12 for detecting the distance between the support plate 11 and the mounting plate 4; the lower surface of the upright column 13 is connected with a U-shaped seat 14 with a downward opening, and a rotating roller 15 is rotatably connected in the U-shaped seat 14.
Need to explain: the rotating roller 15 is in contact with the runway, when the tire glue layer on the runway becomes thick, the rotating roller 15 moves upwards, the support plate 11 and the distance sensor 12 move upwards under the action of the upright column 13, and at the moment, the pressure spring 16 elastically deforms; when the support plate 11 moves upward, the distance between the support plate 11 and the mounting plate 4 increases, so that the number detected by the distance sensor 12 increases; when a tire glue layer on the runway becomes thin, the support plate 11 and the distance sensor 12 move downwards under the action of the elastic restoring force of the pressure spring 16, when the support plate 11 moves downwards, the distance between the support plate 11 and the mounting plate 4 is reduced, and the number detected by the distance sensor 12 is reduced;
it is also stated that: the controller is installed on the installation plate 4, the distance sensor 12 is electrically connected with the output end of the controller, the booster pump 62 is electrically connected with the output end of the controller, and when the number detected by the distance sensor 12 is increased, the working power of the booster pump 62 is increased through the controller, so that the speed of the chemical agent solution sprayed out of the nozzle 69 is increased; when the number detected by the distance sensor 12 decreases, the operating power of the booster pump 62 is reduced by the controller, thereby decreasing the speed of the chemical agent solution ejected from the nozzle 69; the device can adjust the speed of the chemical agent solution sprayed out from the nozzle 69 according to the thickness of the rubber layer of the tire on the runway, thereby achieving better cleaning efficiency and effect and being beneficial to the use of the device.
Referring to fig. 1 and 7, the mounting plate 4 is connected with a connecting mechanism 3; coupling mechanism includes L template 32, the one end fixedly connected with L template 32 that mounting panel 4 is close to backup pad 11, and the one end fixedly connected with end plate 31 of mounting panel 4 is kept away from to L template 32, has seted up waist type mounting hole on the end plate 31.
Need to explain: the end plate 31 is connected with an external traction machine, so that the whole device moves, and the waist-shaped mounting hole is beneficial to being aligned with a connecting hole on the external traction machine, and the connecting difficulty of the device is reduced.
The working principle of the runway cleaning equipment for the runway is as follows:
according to the invention, the negative pressure pump 73 works to generate negative pressure at the opening of the connecting pipe 74, so that the waste liquid enters the connecting pipe 74 under the action of the negative pressure and then enters the recovery box 71 through the guide of the recovery pipe 72, thereby realizing the recovery of the waste liquid, reducing the random flowing probability of the waste liquid and further reducing the pollution to the surrounding environment; meanwhile, the waste liquid is recycled, so that the subsequent treatment of the waste liquid can be facilitated, and the use difficulty of the device is reduced; the invention can send the waste liquid collected in the recovery box 71 into the mixing box 86 by the operation of the mixing pump 82; chemical agent solution in the chemical agent box 67 also enters the mixing box 86 through the guide pipe 63, waste liquid and the chemical agent solution are mixed in the mixing box 86, and mixed liquid enters the liquid separation plate 68 through the inner spiral mixing pipe 87 and is sprayed out through the nozzle 69; the waste liquid can be sprayed out again along with the chemical agent solution, and certain effective components are remained in the waste liquid, so that the using amount of the chemical agent solution is reduced, and the using cost of the device is reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A runway cleaning apparatus for an airstrip, comprising:
the mounting plate (4), the mounting plate (4) is provided with two rollers (5) which are symmetrically arranged;
the chemical agent flushing mechanism (6), wherein the chemical agent flushing mechanism (6) is connected with the mounting plate (4);
and the negative pressure recovery mechanism (7), the negative pressure recovery mechanism (7) is connected with the mounting plate (4), and a collection port of the negative pressure recovery mechanism (7) is arranged opposite to a spray port of the chemical agent flushing mechanism (6).
2. A runway cleaning device for an airstrip according to claim 1, characterized in that the chemical agent washing mechanism (6) comprises a chemical agent tank (67), the upper surface of the mounting plate (4) is fixedly connected with the chemical agent tank (67), the upper surface of the chemical agent tank (67) is fixedly connected with a liquid inlet pipe (66) communicated with the inside thereof, and an opening of the liquid inlet pipe (66) is in threaded sealing connection with a sealing cover; a water pump (61) is installed on the upper surface of the chemical agent box (67), a water inlet of the water pump (61) is connected with a water suction pipe, and the water suction pipe penetrates through the chemical agent box (67) and extends to the inner bottom of the chemical agent box (67); a water outlet of the water pump (61) is connected with one end of the flow guide pipe (63), the other end of the flow guide pipe (63) is connected with a liquid separation plate (68), and the flow guide pipe (63) is provided with a booster pump (62); the outer surface of the liquid separation plate (68) is provided with a plurality of nozzles (69), and the liquid separation plate (68) is arranged on the fixing plate (64); the fixing plate (64) is fixedly connected with the lower surface of the mounting plate (4).
3. A runway cleaning device for an airstrip according to claim 2, characterised in that the negative pressure recovery mechanism (7) comprises an arc recovery hood (75), the lower surface of the mounting plate (4) is elastically connected with the arc recovery hood (75), the opening of the arc recovery hood (75) is arranged towards the nozzle (69); the length of the arc-shaped recovery cover (75) is far greater than that of the liquid separation plate (68), and the center line of the liquid separation plate (68) is coplanar with the center line of the arc-shaped recovery cover (75); the surface of the arc-shaped recovery cover (75) opposite to the nozzle (69) is fixedly connected with a connecting pipe (74) communicated with the interior of the arc-shaped recovery cover, the connecting pipe (74) is fixedly connected with one end of a recovery pipe (72), the other end of the recovery pipe (72) is connected with a feed inlet of a recovery box (71) close to the top of the recovery box, and a negative pressure pump (73) is arranged on the recovery pipe (72); the recovery box (71) is fixedly connected with the upper surface of the mounting plate (4).
4. A runway cleaning device for an airstrip according to claim 3, characterised in that the negative pressure recovery mechanism (7) further comprises an arc-shaped extension plate (77), and the lower end of the arc-shaped recovery cover (75) is elastically rotated with the arc-shaped extension plate (77) opening toward the arc-shaped recovery cover (75); the arc extends board (77) and the arc and retrieves the junction smooth transition of cover (75), and arc extends board (77) and keeps away from the one end that the arc retrieved cover (75) and is connected with and plays fender area (79) that block.
5. A runway sweeping device for an airstrip according to claim 3 or 4, characterised in that the negative pressure recovery mechanism (7) further comprises a curved baffle (76), the curved recovery cover (75) is fixedly connected with a downwardly opening curved baffle (76), and the lower surface of the curved baffle (76) is fixedly connected with a plurality of evenly distributed buffer strips (78); the connecting position of the connecting pipe (74) and the arc-shaped recovery cover (75) is positioned below the arc-shaped baffle (76).
6. A runway cleaning device for aircraft runways according to claim 5, characterised in that the mounting plate (4) is connected to a mixing mechanism (8) for mixing waste liquid with a chemical solution; the mixing mechanism (8) comprises a mixing pump (82), the upper surface of the mounting plate (4) is fixedly connected with the mixing pump (82) through a support, a water inlet of the mixing pump (82) is connected with one end of a water inlet pipe (81), and the other end of the water inlet pipe (81) is connected with a liquid outlet at the bottom of the recovery tank (71); a water outlet of the mixing pump (82) is connected with a liquid conveying pipe (84), a one-way valve (83) is installed on the liquid conveying pipe (84), and one end, far away from the mixing pump (82), of the liquid conveying pipe (84) is connected with a water inlet on one side of the mixing box (86); the mixing box (86) is fixedly connected with the mounting plate (4), and a plurality of layers of baffle plates (85) which are arranged in a staggered mode are fixedly connected in the mixing box (86); the honeycomb duct (63) is connected with a water inlet at the upper end of the mixing box (86), a water outlet at the lower surface of the mixing box (86) is connected with one end of the inner spiral mixing pipe (87), and the other end of the inner spiral mixing pipe (87) is connected with a water inlet of the liquid separating plate (68).
7. The runway cleaning device for an airstrip according to claim 6, characterized in that a filter mechanism (9) is connected in the recycling tank (71), the filter mechanism (9) comprises a filter plate (94), a plurality of filter plates (94) are fixedly connected in the recycling tank (71), and a plurality of filter holes are opened on the filter plate (94); a movable column (91) is movably connected in the filtering hole; a plurality of bottom plates (92) are arranged below the filter plate (94), and the bottom plates (92) correspond to the filter holes one by one; the bottom plate (92) is connected with the filter plate (94) through a connecting rope (93), the upper surface of the bottom plate (92) is fixedly connected with a movable column (91), and the movable column (91) penetrates through the corresponding filter hole.
8. A runway cleaning device for an airstrip according to any of claims 2-4, characterized in that the mounting plate (4) is connected with a pretreatment mechanism (2) for pretreating a tire glue layer, the pretreatment mechanism (2) comprises a connecting rod (28), the mounting plate (4) is provided with a through hole which is through up and down, and the through hole is internally connected with the connecting rod (28) which is arranged through in a sliding way; the upper end of the connecting rod (28) is fixedly connected with a top plate (22), and the upper surface of the mounting plate (4) is provided with a driving assembly (21) for driving the top plate (22) to reciprocate in the vertical direction; the lower extreme elastic connection of connecting rod (28) has base (25), and the lower fixed surface of base (25) is connected with a plurality of evenly distributed's nail (26) of punching.
9. A runway cleaning device for an airstrip according to claim 8, characterised in that the drive assembly (21) comprises an electric motor (216), the upper surface of the mounting plate (4) is fixedly connected with the electric motor (216), the output end of the electric motor (216) is fixedly connected with a turntable (215), the surface of the turntable (215) opposite to the electric motor (216) is fixedly connected with a lug (213), and the lug (213) is arranged close to the edge of the turntable (215); lug (213) sliding connection is in the bar inslot that motion frame (214) center was seted up, the upper surface of motion frame (214) passes through dead lever and roof (22) fixed connection, and the side fixedly connected with side ear (211) of motion frame (214), side ear (211) and the slide rail (212) sliding connection of vertical setting, the upper surface fixed connection of slide rail (212) and mounting panel (4).
10. The runway cleaning device for the airstrip according to claim 8, characterized in that the pretreatment mechanism (2) further comprises an air blowing assembly (27), the air blowing assembly (27) comprises a hot air blower (272), the upper surface of the mounting plate (4) is fixedly connected with the hot air blower (272), the air outlet of the hot air blower (272) is connected with one end of an air duct (271), and the other end of the air duct (271) penetrates through the mounting plate (4) and is connected with a corrugated pipe (274); the lower end of the corrugated pipe (274) is connected with an air inlet on the upper surface of the air distribution plate; divide the lower surface fixed connection of gas dish and base (25), and the lower surface of gas dish installs a plurality of evenly distributed's play gas nozzle (273).
CN202110627204.8A 2021-06-04 2021-06-04 Runway cleaning equipment for airstrip Pending CN113338208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110627204.8A CN113338208A (en) 2021-06-04 2021-06-04 Runway cleaning equipment for airstrip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110627204.8A CN113338208A (en) 2021-06-04 2021-06-04 Runway cleaning equipment for airstrip

Publications (1)

Publication Number Publication Date
CN113338208A true CN113338208A (en) 2021-09-03

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Country Link
CN (1) CN113338208A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101249893A (en) * 2008-01-08 2008-08-27 合肥通用机械研究院 Sewage recovery type airfield oil pollution cleaning vehicle
DE102010043867A1 (en) * 2010-11-12 2012-05-16 Swen Müller Cleaning vehicle for cleaning a landing zone of an aircraft runway
CN102587311A (en) * 2011-04-19 2012-07-18 长沙中联重科环卫机械有限公司 Cleaning truck with sewage recycling function
CN106958222A (en) * 2017-05-16 2017-07-18 四川亿尚呈科技有限公司 The quick collecting dust-removing device of power deflector more than water attack road surface depression cavity
CN209307931U (en) * 2018-09-30 2019-08-27 厦门永砺环保技术服务有限公司 A kind of sweeper that sewage continuously recycles
CN110295563A (en) * 2019-06-28 2019-10-01 张红宾 A kind of airport maintenance runway high pressure blow-gas type clearing apparatus
CN111455913A (en) * 2020-03-18 2020-07-28 北京华威智远量子科技有限公司 Rubber cleaning equipment for airport runways
CN112169676A (en) * 2020-11-06 2021-01-05 李斌 Gynaecology uses washing liquid medicine mixing arrangement
CN212956323U (en) * 2020-07-09 2021-04-13 西安骊山汽车制造有限公司 Airport runway cleaning vehicle
CN212983553U (en) * 2020-07-01 2021-04-16 浙江鼎盛交通建设有限公司 Road asphalt waste cleaning equipment for traffic construction

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101249893A (en) * 2008-01-08 2008-08-27 合肥通用机械研究院 Sewage recovery type airfield oil pollution cleaning vehicle
DE102010043867A1 (en) * 2010-11-12 2012-05-16 Swen Müller Cleaning vehicle for cleaning a landing zone of an aircraft runway
CN102587311A (en) * 2011-04-19 2012-07-18 长沙中联重科环卫机械有限公司 Cleaning truck with sewage recycling function
CN106958222A (en) * 2017-05-16 2017-07-18 四川亿尚呈科技有限公司 The quick collecting dust-removing device of power deflector more than water attack road surface depression cavity
CN209307931U (en) * 2018-09-30 2019-08-27 厦门永砺环保技术服务有限公司 A kind of sweeper that sewage continuously recycles
CN110295563A (en) * 2019-06-28 2019-10-01 张红宾 A kind of airport maintenance runway high pressure blow-gas type clearing apparatus
CN111455913A (en) * 2020-03-18 2020-07-28 北京华威智远量子科技有限公司 Rubber cleaning equipment for airport runways
CN212983553U (en) * 2020-07-01 2021-04-16 浙江鼎盛交通建设有限公司 Road asphalt waste cleaning equipment for traffic construction
CN212956323U (en) * 2020-07-09 2021-04-13 西安骊山汽车制造有限公司 Airport runway cleaning vehicle
CN112169676A (en) * 2020-11-06 2021-01-05 李斌 Gynaecology uses washing liquid medicine mixing arrangement

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Application publication date: 20210903