JP2004068391A - Method for recovering paving function and vehicle with paving function recovery device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To sufficiently remove and recover clogged substances clogged in voids of a draining pavement. <P>SOLUTION: Water in a water tank 104 is introduced into a high-pressure injection nozzle 13 by driving a high-pressure pump 105, and high-pressure water is sprayed toward a paved surface. The clogged substances in a paving body are blown off by spraying the high-pressure water. A tire 25 and a rotary brush 20 are connected through gears 22 to 24, and the rotary brush 20 is driven by rotating the tire 25. Pollution liquid on the paved surface is raked up by turning the rotary brush 20, and recovered into a water receiver 30. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a pavement function recovery method and a vehicle with a function recovery device for removing clogs such as earth and sand that have penetrated into voids of a pavement having a water-permeable function, such as drainage pavement and water-permeable pavement, and recovering the function. About.
[0002]
[Prior art]
2. Description of the Related Art In recent years, a pavement having a good drainage property has been applied to a traveling road surface of a vehicle or the like in order to suppress the occurrence of puddles on the road surface. In this drainage pavement, for example, an asphalt mixture having a high porosity is used for a surface layer, and an impermeable layer is provided below the surface layer to obtain a good drainage property. In such a drainage pavement, when earth and sand, dust, and the like enter into the voids of the pavement, they become clogs, reduce water permeability, and cannot exhibit a sufficient drainage function. Therefore, in order to restore the drainage function of the pavement, it is necessary to remove the clogging of the pavement.
[0003]
2. Description of the Related Art Conventionally, there has been known an apparatus that cleans a road or the like by using a rotating brush that is linked to the rotation of a wheel (for example, Japanese Patent No. 2726891). The rotating brush is suitable for collecting dust on the surface of the pavement, but it is difficult to remove the clogging inside the pavement by the rotating brush.
[0004]
As a function recovery device for drainage pavement, for example, a device described in JP-A-11-336037 is known. In the device described in this publication, high-pressure water is sprayed obliquely to the surface of the pavement, and the clogging material and water in the pavement are blown off in a predetermined direction by reflection of the high-pressure water, and both are collected by a water collecting portion provided in the predetermined direction. to recover.
[0005]
[Problems to be solved by the invention]
However, since the surface of the drainage pavement is not flat, even if high-pressure water is sprayed from a certain direction, the reflection direction is not constant, and the efficiency of collecting water and clogging is poor. If the angle of incidence of high-pressure water spray is increased to keep the high-pressure water reflection direction constant, water cannot be swiftly sprayed on the pavement surface, and clogs in the pavement are sufficiently removed. I can't.
[0006]
An object of the present invention is to provide a pavement function restoring method and apparatus capable of sufficiently removing and recovering clogs clogged in pavement voids.
[0007]
[Means for Solving the Problems]
(1) A method for restoring a pavement function according to the present invention includes a spraying step of spraying a high-pressure liquid onto a surface of a pavement while running a vehicle to blow out clogging substances clogged in a pavement gap, and a clogging substance blown off in the spraying step. The above-mentioned object is achieved by including a step of scraping up and collecting the liquid sprayed on the surface of the pavement with a rotating brush.
(2) A spraying device that sprays high-pressure liquid onto the surface of the pavement, a rotating brush that rotates vertically on the surface of the pavement about a horizontal rotation axis and scrapes up the liquid sprayed by the spraying device, and a rotating brush. The object described above is achieved by providing a driving device for driving and a storage member for storing the contaminated liquid scraped up by the rotating brush.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of a pavement function recovery method according to the present invention will be described with reference to FIGS.
FIG. 4 is a side view of a vehicle (referred to as a clogging removal work vehicle) that performs a clogging removal operation by the pavement function recovery method according to the embodiment of the present invention. A pair of tires 102 are provided on the front side and the rear side of the clogging removal vehicle 100, respectively, and are movable on a road surface. An operator cab 103 is provided on one side (the left side in FIG. 1) of the vehicle body 101, and a tail light unit TL is provided on the other side. A water tank 104 for storing water and a high-pressure pump 105 for pumping water in the tank 104 to a nozzle 13 (see FIG. 2) below the vehicle body 101 are mounted on the vehicle body 101. A spray collection device 110 for spraying and collecting high-pressure water is provided below the vehicle body 101.
[0009]
FIG. 1 is an enlarged view of the spray collection device 110, and FIG. 2 is a sectional view taken along line II-II of FIG. A spray bar 12 extends in the vehicle width direction below the body frame 11, and the spray bar 12 is fixed to the body frame 11 via a stay 14. A high-pressure pump 105 is connected to the spray bar 12 via a pipe 15, and a plurality of high-pressure nozzles 13 are attached to the spray bar 12 over the vehicle width direction. The tip of each high-pressure nozzle 13 is directed slightly toward the rear of the vehicle rather than vertically downward so that the high-pressure water from the high-pressure nozzle 13 can blow off clogs in the pavement toward the rear of the vehicle. That is, the angle of incidence θ of water on the road surface is set to a relatively small value (for example, 5 to 20 °).
[0010]
A substantially cylindrical rotating brush 20 having a rotating shaft 20a extending in the vehicle width direction is arranged behind the high-pressure nozzle 13. Bearing devices 21 are arranged at both ends (only one is shown in FIG. 2) of the rotating shaft 20 a, and the rotating brush 20 is rotatably supported by the bearing devices 21. A gear 22 is fixed to one end of the rotating shaft 20a, and the gear 22 and the rotating shaft 20a rotate integrally. The rotating device 21 has a pair of left and right flat plates 210 and 211 provided perpendicular to the road surface, and shafts 212 to 214 supported between the flat plates 210 and 211 in parallel to the road surface.
[0011]
A tire 25 is rotatably supported on the shaft 214, and a gear 23 is fixedly provided. The tire 25 and the gear 23 rotate integrally. A gear 24 is rotatably supported on the shaft 213. The gears 22 and 24 and the gears 23 and 24 mesh with each other. Thereby, the rotation of the tire 25 is transmitted to the rotating shaft 212 via the gears 23, 24, and 22, and the rotating brush 20 rotates in the same direction as the tire 25 as shown by the arrow in FIG. The gear ratio is adjusted so that the rotation of the rotating brush 20 is increased with respect to the rotation of the tire 25. The gears 22 to 24 are provided on only one of the left and right sides of the vehicle. On the other hand, the rotating shaft 20a and the tire 25 are rotatably supported by the bearing device 21 without passing through the gears 22 to 24.
[0012]
A pair of brackets 27 and 28 are fixed to the body frame 11 so as to have a gap s in the vehicle width direction, and the upper end of the flat plate 211 outside the bearing device 21 is inserted into the gap s so as to be able to move up and down. . The bracket 27 is provided with a through hole 27a, the bracket 28 is provided with a through screw 28a, and the flat plate 211 is provided with two upper and lower through holes 21a, 21b. A stopper screw 29 is inserted into the through hole 21a or 21b via the through hole 27a, and the stopper screw 29 is screwed to the through screw 28a. As a result, the position of the bearing device 21 can be changed in two stages, up and down.
[0013]
A water receiver 30 is arranged behind the rotating brush 20 in the vehicle width direction, and both ends in the vehicle width direction of the water receiver 30 protrude outward from both ends of the rotating brush 20. The water receiver 30 has a bottom plate 31, a pair of left and right side plates 32, and a rear end member 33. The upper end of the rear end member 33 is fixed to the vehicle frame 11. A convex portion 31a projecting upward is provided at the front end of the bottom plate 31, and a concave portion 31b is formed behind the convex portion 31a. The front end surface of the convex portion 31a is formed obliquely so as to face the peripheral surface of the rotating brush 20.
[0014]
A low-pressure pump 40 is fixed to the vehicle frame 11. Pipes 42 and 43 are connected to the low-pressure pump 40, respectively. The low-pressure pump 40 is connected to a filtration filter 41 provided in the recess 31 b via a pipe 42 and to a water tank 104 via a pipe 43.
[0015]
Next, a pavement function recovery method according to the present embodiment will be described.
When performing the clogging removal operation, first, as a preparation step, the stopper screw 29 is inserted into the through holes 27a and 21a and screwed into the through screw 28a. As a result, the tire 25 and the rotary brush 20 are set at the lower position, and contact the drainage pavement surface. Next, the clog removing vehicle 100 is driven at a constant speed while driving the high-pressure pump 105 and the low-pressure pump 40.
[0016]
FIG. 3 is a diagram schematically showing a water circulation path. By driving the high-pressure pump 105, the water in the tank 104 is pressure-fed to the high-pressure injection nozzle 13, and high-pressure water is sprayed from the nozzle tip toward a pavement surface obliquely rearward of the vehicle (spraying step). The spray of the high-pressure water blows off the clogging material in the pavement, and the contaminated liquid mixed with the water and the clogging material is reflected on the road surface and bounces toward the rear of the vehicle.
[0017]
At this time, the tire 25 rotates due to friction with the road surface. The rotation of the tire 25 is increased in speed via the gears 23, 24 and 22 and transmitted to the rotating shaft 20a, so that the rotating brush 20 rotates on the road surface. The contaminated liquid on the road surface is swept up by the rotation of the rotating brush 20 as shown by the arrow in the drawing, and is recovered in the water receiver 30 after climbing over the convex portion 31a of the rear water receiver 30 (recovery step).
[0018]
The contaminated liquid collected in the water receiver 30 is sucked up through the filtration filter 41 by driving the low-pressure pump 40 and sent to the water tank 104. At this time, the clogs in the water receiver 30 settle in the water receiver 30 and are filtered. Then, only the polluted liquid from which the clogs have been removed, that is, water, flows into the water tank 104. The water that has flowed into the water tank 104 is again pumped to the high-pressure injection nozzle 13 by driving the high-pressure pump 105 and sprayed on the pavement surface (reuse process).
[0019]
When the inside of the water receiver 30 is full of clogs, the vehicle is stopped and the clogs are removed. In this case, for example, an openable / closable lid may be attached to the rear end member 33 of the water receiver 30, and the internal clogs may be removed via the lid.
[0020]
During normal traveling without removing clogs, the stopper screw 29 is inserted into the through holes 27a and 21b and screwed into the through screw 28a. As a result, the tire 25 and the rotating brush 20 are set at the upper position, and float up from the road surface. Therefore, during normal traveling, the rotation of the tire 25 and the rotating brush 20 is prevented.
[0021]
As described above, in the present embodiment, high-pressure water is sprayed from a state almost perpendicular to the surface of the drainage pavement, and the turbid liquid on the pavement surface is scraped up by the rotating brush 20 rotatable about the rotation axis 20a in the horizontal plane. , And collected in the water receiver 30. As a result, clogs in the pavement can be blown off, and the contaminated liquid on the pavement surface can be sufficiently collected. Further, since the contaminated liquid in the water receiver 30 is filtered and returned to the water tank 104, there is no need to interrupt the operation for refilling the water in the tank 104, and the operation can be continued. . Since the rotating brush 20 is rotated by the rotation of the tire 25 due to friction with the road surface, it is not necessary to separately provide an actuator for driving the rotating brush 20. Since the tire 25 and the rotating brush 20 are provided so as to be able to move up and down, and the tire 25 and the rotating brush 20 are lifted off the road surface during normal running, friction loss during normal running can be reduced.
[0022]
The pavement removal and recovery method according to the present invention can be variously modified without being limited to the above-described embodiment. For example, in the above embodiment, the high-pressure injection nozzle 13 is used as a spraying device, and water is sprayed from the high-pressure injection nozzle 13 to the pavement surface. However, another liquid such as a cleaning liquid containing a coagulant may be sprayed. . Although the tire 25 is brought into contact with the road surface and the tire 25 is rotated by the frictional force to drive the rotary brush 20, an actuator such as a hydraulic motor may be used as a driving device for driving the rotary brush 20. Although the filtration and recovery device is constituted by the filter 41 and the low-pressure pump 40, the vehicle may be provided with a pollutant tank, and the pollutant may be stored in the tank without filtering.
[0023]
Although the tire 25 and the rotary brush 25 are provided so as to be able to move up and down, they may be moved up and down by an actuator (for example, a hydraulic cylinder). Although the spray collection device 110 is provided between the front wheel and the rear wheel of the vehicle, it may be provided on the front wheel side or the rear wheel side of the vehicle. Instead of transmitting the rotation of the tire 25 to the rotating brush 20, the rotation of the tire 102 may be transmitted to the rotating brush 20. The amount of water in the water receiver 30 may be monitored by a sensor in order to suck up water after the clogging is settled, and the low-pressure pump 40 may suck up the amount of water when the amount of water is equal to or more than a predetermined amount.
[0024]
【The invention's effect】
As described above, according to the present invention, a high-pressure liquid is sprayed on the surface of a pavement to blow off clogging clogged in a space of the pavement, and the clogging material and the liquid on the surface of the pavement are scraped by a rotating brush. Raised and collected. This makes it unnecessary to increase the angle of incidence of the liquid spray, unlike the recovery using the reflected energy of the liquid, so that clogs in the pavement can be sufficiently removed, and the pavement can be removed by the rotating brush. The clogs on the surface can be sufficiently collected.
[Brief description of the drawings]
FIG. 1 is an enlarged view of a spray recovery device for removing clogs by a pavement function recovery method according to an embodiment of the present invention.
FIG. 3 is a side view of the work vehicle for removing clogs.
FIG. 2 is a sectional view taken along line II-II of FIG.
FIG. 3 is a diagram schematically showing a water circulation path when a clogging removal operation is performed by the pavement function recovery method according to the embodiment of the present invention.
FIG. 4 is a side view of a clogging removal work vehicle that performs a clogging removal operation by the pavement function recovery method according to the embodiment of the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 100 Clog removal work vehicle 104 Water tank 105 High pressure pump 13 High pressure injection nozzle 20 Rotary brush 22-24 Gear 25 Tire 30 Water receiver 40 Low pressure pump 41 Filter

Claims (5)

A spraying process in which high-pressure liquid is sprayed on the surface of the pavement while the vehicle is running, and the clogging material clogged up in the pavement is blown off.
A method for recovering a pavement function, comprising: a collecting step of scraping up and clogging the clogged material blown off in the spraying step and the liquid sprayed on the surface of the pavement with a rotating brush. The pavement function recovery method according to claim 1,
A method for recovering a pavement function, further comprising a recycling step of filtering and reusing the contaminated liquid collected in the collecting step. A spray device that sprays high-pressure liquid on the surface of the pavement,
A rotating brush that rotates in a vertical direction on the surface of the pavement around a horizontal rotation axis and scrapes up the liquid sprayed by the spraying device,
A driving device for driving the rotating brush,
And a storage member for storing the contaminated liquid scooped up by the rotating brush. The vehicle with a pavement function recovery device according to claim 3,
The vehicle with a pavement function recovery device, wherein the driving device transmits the rotation of the tire to the rotating brush via a gear mechanism. The vehicle with a pavement function recovery device according to claim 3,
A vehicle with a pavement function recovery device, further comprising a filtration and recovery device that filters the contaminated liquid stored in the main part and guides the filtered liquid to the spraying device.

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