JP2003184041A - Removing device of clogged material on pavement, draining function restoring vehicle for pavement, and removing method and removing system for clogged material on pavement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a removing device for clogged material on a pavement capable of efficiently removing clogged materials intruded in cavities of a pavement. <P>SOLUTION: A cleaning liquid is sprayed onto the surface of a drainable pavement by a traveling water cart, and a compressed air is blawn by a cleaning vehicle succeedingly traveling after the water cart. Clogged material are removed from the cavities of the drainable pavement by the cleaning liquid and the compressed air. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pavement for recovering its function by removing clogging materials such as soil and sand that have entered the voids of a pavement having a water permeable function such as drainage pavement and water permeable pavement. The present invention relates to a clogging removal device, a vehicle for recovering drainage function of pavement, and a method and system for removing clogging of pavement.

[0002]

2. Description of the Related Art In recent years, a road surface on which a vehicle or the like runs has been paved with a good drainage property in order to suppress pooling of water on the road surface. This drainage pavement uses an asphalt mixture having a large porosity for the surface layer and a water-impermeable layer under the surface layer in order to improve the drainage property. If dirt, dust, etc., enter the voids of the drainage pavement, they will become clogging and reduce water permeability. Therefore, a method has been proposed in which high-pressure water is sprayed on the surface of the pavement to raise the clogging material, and then the dirty water in which the washing water and the clogging material are mixed is suctioned and collected. Further, generally, this kind of measure is used to remove the clogging.

[0003]

In the above-mentioned prior art, in order to secure the construction ability of the device for removing clogging, high-pressure washing water is sprayed on the surface of the pavement, and then the polluted water is recovered and reused. is doing. Therefore, the construction speed becomes very slow, and it is necessary to regulate the traffic when removing the clogged objects. Further, it is difficult to adjust the working width to the width of the lane due to the relationship between the engine output of the vehicle equipped with the device for removing clogging and the required power of the high-pressure pump for spraying high-pressure washing water. If the work width is set narrower than the width of the lane as in the prior art, the work of removing the clogging requires at least two steps per lane, the construction efficiency is poor, and by the end of the scheduled work area,
It takes a lot of time and labor cost.

On the other hand, from the side requesting the function restoration of the pavement, a method for realizing the function restoration of the pavement at an early stage is required from the viewpoint of cost and short-term treatment, but a method satisfying the requirement is realized. The current situation is not doing it.

The present invention is directed to a device for removing a clogged substance in a pavement capable of efficiently removing a clogged substance that has entered the void of the pavement, a vehicle for recovering the drainage function of a drainage pavement, and a removal of the clogged substance in the pavement. It is intended to provide a method and system.

[0006]

In order to achieve the above object, a method for removing clogging of a pavement according to the present invention comprises spraying a liquid on the surface of the pavement and applying a high pressure to the surface of the pavement sprayed with the liquid. The gas that is blown is used to remove the clogging material that has clogged the voids in the pavement.

In order to achieve the above-mentioned object, the system for removing clogging of a pavement according to the present invention comprises a spraying vehicle for spraying a liquid on the surface of the pavement, and a vehicle running behind the spraying vehicle.
It consists of a cleaning car that blows high-pressure gas onto the surface of the pavement that has been sprayed with liquid, and removes clogging that has clogged the voids in the pavement.

The present invention resides in a pavement clogging removal system characterized by comprising a plurality of washing cars in the above-mentioned pavement clogging removal system.

Further, in order to achieve the above object, a device for removing clogging of a pavement according to the present invention includes a spraying device for spraying a liquid on the surface of the pavement and a high-pressure device for spraying the liquid on the surface of the pavement. And a spraying device for spraying a gas and peeling off the clogged material clogged in the void of the pavement.

According to the present invention, in the above-mentioned device for removing clogged pavement, the spraying device has a tank for storing the liquid, and a spraying part for spraying the liquid stored in the tank onto the surface of the pavement. The spraying device is a device for removing clogging of a pavement, which has a gas compressing unit that compresses a gas and an spraying unit that sprays the gas compressed by the gas compressing unit onto the surface of the pavement.

According to the present invention, in the device for removing clogging of pavement as described above, the injection unit is composed of a plurality of injection nozzles arranged in a row in a row at a predetermined interval to inject high-pressure gas. The jetted gas is in a pavement clog removal device, characterized in that it travels straight toward the pavement surface.

The present invention resides in the device for removing clogging of pavement, wherein the spraying portion is arranged at a position higher than the spraying part.

According to the present invention, in the device for removing clogging of pavement described above, the spraying device further comprises a pump for supplying the liquid stored in the tank to the spraying portion at a constant flow rate. It is in the device for removing clogging.

In order to achieve the above object, the method for removing clogging of a pavement according to the present invention is to spray a liquid on the surface of the pavement and spray a high-pressure gas on the surface of the pavement sprayed with the liquid. The clogging substances clogged in the pavement voids are removed by sucking the clogging substances and the liquid separated from the pavement voids by the liquid and the high-pressure gas.

Further, in order to achieve the above-mentioned object, the system for removing clogging of a pavement according to the present invention comprises a sprayer for spraying a liquid on the surface of the pavement, and a liquid for spraying the liquid on the rear side of the sprayer. A washing car that blows high-pressure gas onto the surface of the paved road, and a suction car that runs behind the spraying car and the washing car to suck the clogging material and liquid that are separated from the inside of the pavement due to the liquid and high-pressure gas. It consists of a car and removes the clogging that is stuck in the void of the pavement.

The present invention resides in a system for removing clogging of pavement, which is characterized in that a plurality of washing cars are provided in the system for removing clogging of pavement.

Further, in order to achieve the above object, the system for removing clogging of a pavement according to the present invention, a spray car for spraying a liquid on the surface of the pavement, and a rear side of the spray car,
A high-pressure gas is sprayed onto the surface of the pavement sprayed with a liquid, and a cleaning suction wheel that sucks the liquid and the clogging that has been separated from the inside of the pavement by the high-pressure gas and the cleaning suction wheel is used. Remove the clogged inside.

The present invention resides in a pavement clogging removal system characterized by comprising a plurality of cleaning suction wheels in the pavement clogging removal system described above.

Further, in order to achieve the above object, a device for removing clogging of a pavement according to the present invention comprises a spraying device for spraying a liquid on the surface of the pavement and a high-pressure gas on the surface of the pavement sprayed with the liquid. And a suction device for sucking the clogged material and the liquid separated from the inside of the pavement by the liquid and the high-pressure gas.

According to the present invention, in the device for removing clogging of pavement described above, the spraying device is a first tank for storing the liquid, and a spraying device for spraying the liquid stored in the first tank on the surface of the pavement. The injection unit has a gas compression unit for compressing gas and an injection unit that blows the gas compressed by the gas compression unit onto the surface of the pavement, and the suction device separates from the void of the pavement. A suction unit for sucking the clogging material and the liquid that have been sucked, a second tank that is connected to the suction unit to store the suctioned clogging material and the liquid, and a negative pressure state in the second tank A device for removing clogging of a pavement, which has a negative pressure generating portion.

According to the present invention, in the device for removing clogging of pavement as described above, the injection unit is composed of a plurality of injection nozzles arranged in a row in a row at a predetermined interval to inject high-pressure gas. The jetted gas is in a pavement clog removal device, characterized in that it travels straight toward the pavement surface.

The present invention resides in the device for removing clogging of pavement, characterized in that the spraying part is arranged at a position higher than the spraying part.

According to the present invention, in the device for removing clogging of pavement as described above, the spraying device further has a pump for supplying the liquid stored in the tank to the spraying unit at a constant flow rate. It is in the device for removing clogging.

According to the present invention, in the above-described device for removing clogging of pavement, the second tank separates the clogging matter collected by the suction unit from the liquid, and the clogging matter of pavement. In the removal device.

According to the present invention, in the above-mentioned device for removing clogged pavement, the negative pressure generating section also functions as a gas compressing section, the suction section is connected to the suction side of the negative pressure generating section, and the injection is performed. The part is connected to the exhaust side of the negative pressure generating part in a device for removing clogging of pavement.

According to the present invention, in the device for removing clogging of pavement described above, the tip of the spraying part and the tip of the suction part are arranged so as to face each other. It is in.

In order to achieve the above object, the vehicle for recovering drainage function of drainage pavement according to the present invention is equipped with the device for removing clogging of the pavement described above.

According to the present invention, in the vehicle for recovering the drainage function of the above-mentioned drainage pavement, a cleaning unit including a spraying section and a spraying section, a cleaning unit including a spraying section and a suction section, or a spraying section and a spraying section. A cleaning unit including a suction unit and a suction unit is installed at the rear of the vehicle, and further includes a scaling device that expands and contracts the cleaning unit in the vehicle width direction and makes the cleaning unit wider than the vehicle width of the vehicle with the drainage function when expanded. It is a vehicle with drainage function recovery of drainage pavement.

The present invention resides in the above-mentioned drainage function recovery vehicle for drainage pavement, wherein the cleaning unit is composed of a plurality of cleaning units.

In the vehicle for recovering the drainage function of the drainage pavement according to the present invention, the plurality of cleaning units each have a vibration absorbing device for absorbing the vibration in the vertical direction of the vehicle, and the shape of the surface of the drainage pavement. According to the above, it is a vehicle for recovering drainage function of drainage pavement that is configured to be movable in the vertical direction of the vehicle.

According to the present invention, in the vehicle for recovering the drainage function of the drainage pavement described above, the plurality of cleaning units swing left and right around the vehicle front-rear direction according to the shape of the surface of the drainage pavement. There is a drainage function recovery vehicle for drainage pavement that further has a rocking device that enables it.

In the vehicle for recovering drainage function of drainage pavement according to the present invention, the drainage pavement further comprises a switching device for switching between a grounding state and a non-grounding state of the cleaning unit on the drainage pavement surface. It is in a vehicle with drainage function recovery.

According to the present invention, in the vehicle for recovering the drainage function of the above-mentioned drainage pavement, the spraying section is arranged on the front side of the vehicle, and the injection section, or the injection section and the suction section are arranged on the rear side of the vehicle. It is in a vehicle that recovers drainage function of drainage pavement.

Further, in the present invention, in the system for removing clogging as described above, the scrubbing wheel has a spraying unit for spraying a compressed gas onto the surface of the pavement, a liquid sprayed by the spraying wheel and a space in the pavement. The suction unit that sucks the clogging material that has been peeled off from the suction tank, the collection tank that is connected to the suction unit and that stores the suctioned clogging material and the liquid, and a negative pressure state in the collection tank and the injection unit. A cleaning unit having a negative pressure generating unit for supplying compressed gas and including an injection unit and a suction unit is installed at a rear portion of the vehicle, and is configured to be expandable / contractible in the vehicle width direction. It is in the system for removing clogging from pavements.

The present invention is the clogging removing system described above, wherein the recovery tank separates the recovered clogging material and liquid from each other.

[0036]

BEST MODE FOR CARRYING OUT THE INVENTION << First Embodiment >> A first embodiment of the present invention will be described below with reference to the drawings. Figure 1,
FIG. 2 is a side view and a rear view of a vehicle equipped with the device for removing clogging of a pavement according to the first embodiment of the present invention. FIG. 1 (a) is a spray vehicle 100 that sprays a cleaning liquid onto the surface of a road surface that has been subjected to drainage pavement, and FIG. 1 (b) follows the spray vehicle 100 and applies high-pressure air onto the cleaning liquid sprayed on the road surface. Each of the cleaning vehicles 200 removes soil and the like clogged in the pavement by spraying.

The spray vehicle 10 shown in FIGS. 1 (a) and 2 (a).
0, 101 is a vehicle body, 102 is a wheel provided on the lower surface of the vehicle body 101, 103 is a driver's cab provided on one side (left side in FIG. 1) of the vehicle body 101, and a steering device such as an operating handle is provided in the driver's cab 103. , Wheel drive, engine,
An operation device for a low-pressure pump, which will be described later, and the like are installed.

A cleaning liquid tank 110 is provided on the vehicle body 101, and the cleaning liquid tank 110 stores a cleaning liquid. Reference numeral 111 is a low-pressure pump provided on the vehicle body 101 near the cleaning liquid tank 110, and 112 is a spray bar provided near the tail lamp unit TL behind the spraying vehicle 100 and spraying the cleaning liquid on the surface of the drainage pavement. 113
Is a stay attached to the vehicle body 101 and supporting the spray bar 112. 114 is the cleaning liquid tank 110
Of the cleaning liquid of the spray bar 11 through the low pressure pump 111.
2 is a cleaning liquid pipe to be supplied to 2.

The cleaning liquid in the cleaning liquid tank 110 is supplied to the spray bar 112 through the cleaning liquid pipe 114 by the low-pressure pump 111 at a constant flow rate and is sprayed on the surface of the drainage pavement. As shown in FIG. 2A, the spray bar 1
Since the cleaning liquid 12 is sprayed over a wide range, the cleaning liquid 12 is installed at a position as high as possible under the vehicle body 101 and substantially the same width as the vehicle width of the spraying vehicle 100.

The washing car 20 shown in FIGS. 1 (b) and 2 (b)
0, 201 is a vehicle body, 202 is a wheel provided on a lower surface of the vehicle body 201, 203 is a driver's cab provided on one side (left side in FIG. 1) of the vehicle body 201, and a steering device such as an operating handle is provided in the operator cab 203. , Wheel drive, engine,
A compressor operating device, which will be described later, is installed.

Reference numeral 210 is an air compressor provided on the vehicle body 201, and 211 is an air jet nozzle provided near the tail lamp unit TL at the rear of the washing vehicle 200 and blowing compressed air onto the surface of the drainage pavement. 212
Is attached to the vehicle body 201, and the air ejection nozzle 211
Is a stay that supports. Reference numeral 213 denotes an air jet nozzle 211 for blowing the air compressed by the air compressor 210.
It is compressed air piping to supply to.

The tip of the air jet nozzle 211 is arranged obliquely toward the rear of the washing car 200, and
It is installed in almost the same width as the 0 vehicle width. FIG. 3 is an enlarged schematic view of the tip of the air ejection nozzle 211. As shown in FIG. 3, the tip of the air ejection nozzle 211 has a diameter of 1 mm.
Holes for ejecting air are provided side by side at intervals of 2 to 3 mm. The air compressed by the air compressor 210 travels straight from the air ejection nozzle 211 toward the surface of the drainage pavement. The air ejection nozzle 211 may be arranged substantially perpendicular to the road surface.

As the cleaning liquid to be sprayed on the drainage pavement, for example, a mixed aqueous solution of a coagulant composed of a cationic linear polymer and a surfactant can be used. The flocculant composed of a cationic linear polymer has a property of coagulating fine particles when sprayed on earth and sand to aggregate the whole earth and sand. The coagulant sprayed on the surface of the drainage pavement binds to the clogging material in the drainage pavement, and facilitates the separation of the clogging material from the voids of the drainage pavement. Other liquid may be used as the cleaning liquid.

Next, a method for removing the clogging of the drainage pavement by the above-described spraying vehicle 100 and washing vehicle 200 will be described. The spray vehicle 100 travels at a vehicle speed of about 10 km / h and supplies the cleaning liquid stored in the cleaning liquid tank 110 to the spray bar 112 at a constant flow rate by the low-pressure pump 111 to spray the cleaning liquid on the surface of the drainage pavement.
The sprayed cleaning liquid permeates into clogging materials such as earth and sand that are clogged in the voids of the drainage pavement. The cleaning vehicle 200 travels after the spraying vehicle 100 at regular intervals, and blows the air compressed by the air compressor 210 onto the surface of the drainage pavement sprayed with the cleaning liquid by the air jet nozzle 211.

Since the cleaning liquid permeates the clogs in the voids of the drainage pavement and is easily peeled off, the cleaning vehicle 20
By blowing compressed air with 0, the clogging of the drainage pavement can be efficiently removed.

As shown in FIGS. 4 (a), 4 (b) and 4 (c), in order to prevent clogging from scattering around when the compressed air is blown onto the surface of the drainage pavement. The periphery of the air ejection nozzle 211 may be covered with a cover 214 in which only the surface of the air ejection nozzle 211 facing the road surface is opened. Further, when the spray vehicle 100 sprays the cleaning liquid on the road surface, the cleaning liquid in the cleaning liquid tank 110 may be caused to flow out according to gravity. In this case, the low pressure pump 11
1 can be omitted.

When the cleaning liquid is sprayed on the surface of the drainage pavement by the spraying vehicle 100, the low-pressure pump 111 is used so that the spraying amount of the cleaning liquid per unit area is, for example, 0.2 to ² L / m ^2. adjust. Further, when the cleaning vehicle 200 blows compressed air onto the surface of the drainage pavement sprayed with the cleaning liquid, the pressure of the compressed air is, for example, 5 kgf.
/ Cm ² or more.

When the high-pressure cleaning liquid is sprayed on the surface of the drainage pavement as in the conventional case, the spray amount per unit area is about 9 L.
It required a large amount of cleaning liquid, such as / m ² . In this case, if the sprayed cleaning liquid is not collected and reused, the continuous workable time and the continuous workable area that can be continuously worked when removing the clogging are reduced. However, since it takes time to perform the construction while sucking and collecting the cleaning liquid, separating it from the clogging material and reusing it,
It was necessary to drive at a low speed of about 1 km / h, and it was necessary to regulate traffic when removing clogging.

According to the first embodiment of the present invention, since the amount of the cleaning liquid sprayed per unit area is small as described above, it is not necessary to suck and recover the cleaning liquid for reuse. As a result, vehicle speeds that do not require traffic regulation (for example, 10 km /
It is possible to carry out the work of removing the clogging by traveling in h). In addition, since the scatter vehicle 100 and the washing vehicle 200 share the work of removing the clogging, a truck of about 4 tons can be used as a base vehicle, and construction can be easily performed even in an urban area with many curves and intersections. be able to.

Further, as shown in FIG. 5, a plurality of washing cars 200 may be run after the spraying car 100 to remove clogging of drainage pavement. By blowing the compressed air with the plurality of washing cars 200, the ability to remove the clogging can be improved.

<< Modification of First Embodiment >> FIG. 6 is a side view of a vehicle equipped with a device for removing clogging according to a modification of the first embodiment. In the above-described first embodiment, the spray vehicle 100 that sprays the cleaning liquid onto the surface of the drainage pavement and the cleaning vehicle 200 that sprays the compressed air onto the surface of the drainage pavement are separated. In a modified example of the above form, each function is mounted on one vehicle. In FIG. 6, components having the same functions as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. Here, differences from the first embodiment will be mainly described.

The spraying / washing vehicle 300 is provided with a washing liquid tank 110, a low pressure pump 111, and an air compressor 210 on the vehicle body 301. Spray bar 11 for spraying the cleaning liquid in the cleaning liquid tank 110 onto the surface of drainage pavement
2 is an air jet nozzle 2 that blows compressed air compressed by the air compressor 210 onto the surface of the drainage pavement.
It is attached to the front side of the vehicle with respect to 11. The low pressure pump 111, the operation device of the air compressor 210, and the like are provided in the cab 303 so that the driver can operate them.

The spraying / washing vehicle 300 supplies the washing liquid in the washing liquid tank 110 to the spray bar 112 by the low pressure pump 111 while traveling. The spray bar 112 is
Spray the cleaning solution on the drainage pavement surface. The air compressor 210 blows compressed air onto the surface of the drainage pavement on which the cleaning liquid has been sprayed by the air ejection nozzle 211, and removes the clogging that is easily penetrated by the cleaning liquid and is easily peeled off.

As shown in FIGS. 7A and 7B,
A cover 310 is provided around the spray bar 112 and the air ejection nozzle 211 in order to prevent clogging of the air when spraying compressed air onto the surface of the drainage pavement.
May be covered with.

Further, a spray bar 1 for spraying the cleaning liquid
12 may be provided below the cab 303 in front of the vehicle.
As a result, the cleaning liquid is sprayed and the compressed air is sprayed with a time lag, so that the cleaning liquid is sufficiently permeated into the clogging material filled in the voids of the drainage pavement, and then the air ejection nozzle 211 installed at the rear of the vehicle Clogs can be removed.

As described above, in the modification of the first embodiment, the cleaning liquid is sprayed in the same manner as in the above-described first embodiment, and the cleaning liquid is sucked because the clogging is removed by the compressed air. There is no need to collect and reuse the material, and the work of removing the clogging can be performed by traveling at high speed (for example, 10 km / h). Further, since the functions of spraying the cleaning liquid and blowing the compressed air are installed in one vehicle to remove the clogging, it is possible to reduce the number of workers as compared with the case of using the plurality of vehicles. it can.

<< Second Embodiment >> FIG. 8 is a side view of a vehicle equipped with a device for removing clogging of a pavement according to a second embodiment of the present invention. Those having the same functions as those in the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted. Here, differences from the first embodiment will be mainly described.

As shown in FIG. 8, in the second embodiment, similarly to the first embodiment described above, a spraying vehicle 100 for spraying the cleaning liquid at the top and a cleaning vehicle 200 for spraying compressed air behind it. Are arranged. Furthermore, washing car 2
The suction wheel 400 is arranged behind 00.

In the suction wheel 400 shown in FIG.
Is a vehicle body, 402 is a wheel provided on the lower surface of the vehicle body 401, 40
Reference numeral 3 denotes a driver's cab provided on one side of the vehicle body 401 (left side in FIG. 8). In the driver's cab 403, a steering device such as an operating handle, a wheel driving device, an engine, an operating device for a vacuum pump described later, and the like are installed. Has been done.

A blower or vacuum pump 410 is provided on the driver's cab 403 side of the vehicle body 401, and a blower or vacuum pump 411 is provided on the vehicle rear side of the blower or vacuum pump 410, and the cleaning liquid and drainage sprayed on the surface of the drainage pavement. This is a pollutant liquid tank for storing a mixed liquid (contaminant liquid) with the clogging material removed from the voids of the pavement. Numeral 412 is a pollution liquid tank 411.
And a vacuum pump 410, which is a pipe connecting the vacuum pump 410 and the vacuum pump 410 via a pipe 412.
The air inside is discharged, and the inside of the pollution liquid tank 411 is made a negative pressure. Reference numeral 414 denotes a suction port provided below the vehicle body 401 behind the suction wheel 400, for sucking and collecting the pollutant on the road surface, and 413 denotes a suction hose connecting the suction port 414 and the pollutant tank 411. . A stay 415 is attached to the vehicle body 401 and supports the suction port.

As shown in the rear view of the suction wheel 400 of FIG. 9, the two suction ports 414 are adjacent to each other in a width substantially the same as the width of the suction wheel 400 so as to efficiently suck and collect the polluted liquid. It is provided in. The suction hose 413
Each suction port 414 and the pollutant liquid tank 411 are connected. The suction port 414 may be one or plural as long as its width is substantially the same as the vehicle width.

Next, a method of removing the clogging of the drainage pavement in the second embodiment will be described. Similar to the first embodiment described above, the spray vehicle 100 has a vehicle speed of 10%.
The cleaning liquid is sprayed on the surface of the drainage pavement while traveling at a speed of about km / h, and the cleaning vehicle 200 running behind the spraying vehicle 100 at regular intervals is sprayed with the cleaning liquid by the air injection nozzle 211. Blow compressed air on the road surface.
The suction wheel 400, which travels behind the washing wheel 200 at regular intervals, sucks and collects the clogging of the drainage pavement removed by the compressed air and the washing solution after washing from the suction port 414, and the pollutant tank 411. Store in.

The suction wheel 400 may be provided with a function of not only sucking and collecting the polluted liquid but also filtering the collected polluted liquid so that it can be reused. FIG. 10 shows an enlarged cross-sectional view of the contaminated liquid tank 411A having a contaminated liquid filtering function. In the pollution liquid tank 411A shown in FIG.
0 is a filter 420 for filtering the sucked polluted liquid,
421 is a low-pressure pump provided above the filtration filter 420, and 423 is a partition for separating the contaminated liquid and the filtered cleaning liquid in the contaminated liquid tank 411A. In addition, 424 is connected to the suction hose 413 of the contaminated liquid tank 411A, and a contaminated liquid storage unit that stores the contaminated liquid before filtering is provided, and 425 is connected to a pipe 412 that connects the vacuum pump 410 and the contaminated liquid tank 411A. The cleaning liquid storage unit stores the cleaning liquid after being filtered.

The contaminated liquid sucked from the suction port 414 flows into the contaminated liquid storage section 424 of the contaminated liquid tank 411A via the suction hose 413. The contaminated liquid that has flowed into the contaminated liquid storage unit 424 is filtered by the low pressure pump 421.
It is sucked up through 20 and sent to the cleaning liquid storage section 425 partitioned by the partition 423. At this time, the clogging material in the contaminated liquid is deposited in the contaminated liquid storage portion 424, and only the contaminated liquid from which the clogging material has been removed by filtration, that is, the cleaning liquid flows into the cleaning liquid storage portion 425.

Suction wheel 4 equipped with a pollutant tank 411A
In 00, suction and collection of the polluted liquid and filtration of the polluted liquid are performed while traveling behind the spraying vehicle 100 and the washing vehicle 200. The cleaning liquid that has been filtered and stored in the cleaning liquid storage unit 425 can be transferred to the cleaning liquid tank 110 of the spray vehicle 100 after the vehicle is stopped and reused as the cleaning liquid.

Incidentally, in order to prevent the clogging from scattering when the compressed air is blown onto the road surface by the washing car 200, as shown in FIG. 4C of the first embodiment,
The periphery of the air ejection nozzle 211 may be covered with a cover 214. Further, in order to improve the ability to remove clogging, a plurality of washing cars and a plurality of suction cars may be used.

As described above, in the second embodiment, the suction wheel 400 is run after the spray wheel 100 and the washing wheel 200, and the cleaning liquid and the drainage wheel are sprayed on the surface of the drainage wheel. The contaminated liquid mixed with the clogging removed from the voids was sucked and collected. By removing the clogs that are repelled by the compressed air from the drainage pavement and floated on the surface of the road surface, the clogs can be more reliably removed. Further, if the contaminated liquid collected by the absorption wheel 400 is filtered to separate the clogging material and the cleaning liquid, the cleaning liquid can be reused and the clogging material can be removed more efficiently. It should be noted that even if the suction wheel 400 is provided with a function for separating the washing liquid, and even if it takes a long time to filter the contaminated liquid, the separated washing liquid is not immediately reused, so that the suction wheel 400 travels in front. It is possible to travel at the same vehicle speed as the spraying vehicle 100 and the washing vehicle 200. As a result, it is possible to perform the work of removing the clogging without the traffic regulation.

<< First Modification of Second Embodiment >> FIG.
FIG. 9 is a side view of a vehicle equipped with the clogging matter removing device according to the first modification of the second embodiment. In the above-described second embodiment, the spray vehicle 100 that sprays the cleaning liquid onto the surface of the drainage pavement, the cleaning vehicle 200 that sprays compressed air onto the surface of the drainage pavement, and the suction vehicle that suctions and collects the polluted liquid. However, in the first modification of the second embodiment, the scatter wheel 100, the scrubbing wheel 200, and the scrubbing wheel 50 having the functions of the scrubbing wheel 400 mounted in one unit.
0 is used to remove clogging. In FIG. 11, those having the same functions as those in the second embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. here,
Differences from the second embodiment will be mainly described.

As shown in FIG. 11, a cleaning / suction wheel 500
Removes clogging while traveling behind the spray truck 100 at regular intervals. In the cleaning / suction vehicle 500, 501 is a vehicle body, 502 is a wheel provided on the lower surface of the vehicle body 501, and 503 is a driver's cab provided on one side (left side in FIG. 11) of the vehicle 501. A steering device such as the above, a drive device for wheels, an engine, an operating device for a vacuum pump described later, and the like are installed.

510 is a blower or a vacuum pump provided on the vehicle body 501, 511 is a contaminated liquid tank for storing the collected contaminated liquid, and 512 is a pipe connecting the vacuum pump 510 and the contaminated liquid tank 511. Reference numeral 513 is a compressed air ejection nozzle, 514 is an air nozzle stay for supporting the air ejection nozzle 513 on the vehicle body, and 515 is a vacuum pump 51.
0 is a compressed air pipe that connects 0 and the air jet nozzle 513. Further, 516 is a suction port for sucking the polluted liquid, 51
Reference numeral 7 is a suction hose that connects the suction port 516 and the contaminant tank 511, and reference numeral 518 is a suction port stay.

In the cleaning / absorption vehicle 500 of the first modification of the second embodiment, the vacuum pump 510 for making the inside of the contaminated liquid tank 511 a negative pressure for sucking the contaminated liquid is for ejecting compressed air. It also has a function as an air compressor. As shown in FIG. 11, the discharge side of the vacuum pump 510 is connected to the compressed air jet nozzle 5 via a compressed air pipe 515.
13, and the suction side is connected to the suction port 516 via the pipe 512, the contaminant tank 511 and the suction hose 517.

As shown in the rear view of the cleaning / suction wheel 500 of FIG. 12, the compressed air jet nozzle 513 and the suction port 51 are shown.
6 is installed in the width almost the same as the width of the vehicle.

FIG. 13 shows the cleaning / suction wheel 50 shown in FIG.
It is an enlarged schematic diagram of B section of 0. As shown in FIG. 13, a compressed air jet nozzle 513 that blows compressed air to the surface of the drainage pavement on which the cleaning liquid has been sprayed by the spray vehicle 100.
Is provided on the front side of the vehicle with respect to the suction port 516, and is arranged such that the tip thereof is directed obliquely downward to the rear side of the vehicle. The suction port 516 is installed such that its tip faces the compressed air ejection nozzle 513 so that the cleaning liquid and the clogging matter scattered by the compressed air ejected from the compressed air nozzle 513 can be easily sucked.

Next, a method of removing clogging according to the modification 1 of the second embodiment will be described. Similar to the second embodiment described above, the spray truck 100 sprays the cleaning liquid on the surface of the drainage pavement while traveling. Spraying car 1
Washing suction wheel 50 running behind 00 at regular intervals
0 is a compressed air jet nozzle 513 on the road surface after spraying the cleaning liquid.
The exhaust of the vacuum pump 510 is blown by. In addition,
The exhaust of the vacuum pump 510 is jetted toward the road surface at a high pressure equivalent to that of the air compressed by the air compressor 210 described above.

At the same time as the compressed air is jetted by the compressed air jet nozzle 513, the polluted liquid containing the cleaning liquid and the clogging removed from the gap of the drainage pavement is sucked and collected from the suction port 516. The sucked polluted liquid is stored in the polluted liquid tank 511.

As in the case of the second embodiment described with reference to FIG. 10, the contaminated liquid tank 5 of the cleaning / suction wheel 500 is shown.
In addition to suctioning and collecting the contaminated liquid, the unit 11 may be provided with a function of filtering the collected contaminated liquid so that it can be reused. The polluted liquid sucked from the suction port 516 is filtered through a filter in the polluted liquid tank 511 and separated into a clogging matter and a cleaning liquid. The separated clogging material settles in the pollution liquid tank 511, and the cleaning liquid can be transferred to the spray car 100 after the vehicle is stopped and reused as the cleaning liquid.

Incidentally, in order to prevent the clogging from scattering when the cleaning / suction wheel 500 blows the compressed air onto the road surface, as shown in FIGS. 14 (a), 14 (b) and 14 (c). The periphery of the compressed air ejection nozzle 513 and the suction port 516 may be covered with a cover 519. Further, a plurality of cleaning / suction wheels may be used in order to improve the ability to remove clogging.

As described above, in the modified example 1 of the second embodiment, the washing / suction wheel 500 for spraying compressed air and sucking and collecting the pollutant liquid behind the spray wheel 100.
Was made to run. Since the cleaning / suction wheel 500 blows the compressed air onto the road surface and at the same time performs suction recovery, it is possible to efficiently suction and recover the contaminated liquid in which the clogging material and the cleaning liquid after cleaning are mixed. Further, since the vacuum pump 510 that generates a negative pressure to suck the polluted liquid has a function as an air compressor for ejecting compressed air, it is not necessary to separately provide an air compressor, and the number of parts can be reduced. it can. Further, as in the case of the second embodiment described above, it is not necessary to collect the polluted liquid, filter it, and reuse it as a cleaning liquid. Therefore, it is not necessary to perform traffic regulation during the clogging removal work. / H can be traveled, and construction can be performed efficiently.

<< Modification 2 of the Second Embodiment >> FIG.
(A), (b) shows the side view and rear view of the vehicle which mounts the removal device of the clogging thing by the modification 2 of a 2nd embodiment. In the above-described second embodiment, the spray vehicle 100 that sprays the cleaning liquid onto the surface of the drainage pavement and the cleaning vehicle 200 that sprays compressed air onto the surface of the drainage pavement.
And the suction wheel 400 for sucking and collecting the polluted liquid are separated, but in the second modification of the second embodiment, the functions of the spray wheel 100, the washing wheel 200, and the suction wheel 400 are incorporated in one unit. The spraying / washing / suction wheel 600 (hereinafter referred to as a drainage function recovery vehicle) is used to remove the clogging.
In FIG. 15, those having the same functions as those of the second embodiment and the modification 1 of the second embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. Here, differences from the second embodiment and the first modification of the second embodiment will be mainly described.

In the drainage function recovery vehicle 600 shown in FIGS. 15A and 15B, 601 is the vehicle body and 602 is the vehicle body 601.
A wheel 603 provided on the lower surface of the vehicle body 601 (see FIG. 1).
5 (a) is a driver's cab provided on the left side, and in the driver's cab 603, a steering device such as an operating handle, a wheel driving device, an engine, an operating device for a low pressure pump or a vacuum pump described later, and the like are installed. There is.

A cleaning liquid tank 610 is provided on the vehicle body 601 on the cab 603 side and stores a cleaning liquid, and a reference numeral 611 is a low pressure pump provided on the vehicle body 601 near the cleaning liquid tank 610. Reference numeral 612 is a spray bar provided near the tail lamp unit TL at the rear of the vehicle and spraying the cleaning liquid on the surface of the drainage pavement. Reference numeral 614 is a stay attached to the vehicle body 601 and supporting the spray bar 612. Reference numeral 613 is a cleaning liquid pipe for supplying the cleaning liquid in the cleaning liquid tank 610 to the spray bar 612 via the low pressure pump 611.

Further, on the vehicle body 601, the above-mentioned second
Similar to the modified example 1 of the embodiment, the blower or the vacuum pump 510, and the contaminant tank 5 for storing the recovered contaminant
And 11 are provided. The pollutant tank 511 is connected to the suction side of the vacuum pump 510 via a pipe 512,
By making the inside of the contaminated liquid tank 511 a negative pressure by the vacuum pump 510, the contaminated liquid is suctioned and collected from the suction port 516 via the suction hose 517. The discharge side of the vacuum pump 510 is connected to the compressed air pipe 515, and the compressed air jet nozzle 513 blows the compressed air onto the surface of the drainage pavement.

As shown in the rear view of FIG. 15 (b), in the drainage function recovery vehicle 600, the spray bar 61 is used.
2, the compressed air jet nozzle 513 and the suction port 516 are
The width of the vehicle is almost the same as the width of the vehicle.

FIG. 15 (c) is an enlarged schematic view of the B portion of FIG. 15 (a). As shown in FIG. 15C, a spray bar 612 for spraying the cleaning liquid onto the surface of the drainage pavement from the front side of the vehicle, a compressed air jet nozzle 513 for blowing compressed air onto the road surface after the cleaning liquid is sprayed, and the polluted liquid is suctioned and collected. A suction port 516 is arranged. As described in the modified example 1 of the second embodiment, the compressed air ejection nozzle 513 and the suction port 516 are configured such that their tips face each other so that the scattered polluted liquid can be efficiently sucked. There is.

Next, a method for removing clogging according to the second modification of the second embodiment will be described. Drainage function recovery vehicle 600 is 10km /
While traveling at a vehicle speed of about h, the cleaning liquid is sprayed onto the surface of the drainage pavement by the spray bar 612. Compressed air ejection nozzle 5 arranged on the vehicle rear side of spray bar 612
The exhaust of the vacuum pump 510 is sprayed on the surface of the drainage pavement on which the cleaning liquid is sprayed by 13. At the same time as the compressed air is sprayed by the compressed air jet nozzle 513, the cleaning liquid and the polluted liquid containing the clogging removed from the gap of the drainage pavement are sucked and collected from the suction port 516. The sucked polluted liquid is stored in the polluted liquid tank 511.

As in the second embodiment described with reference to FIG. 10, not only the polluted liquid is sucked and collected in the polluted liquid tank 511 of the drainage function recovery vehicle 600, but also the collected polluted liquid is collected. A function of filtering may be provided so that it can be reused. The filtered cleaning liquid is transferred from the contaminated liquid tank 511 to the cleaning liquid tank 610 by a pump, a pipe and the like (not shown).
And can be reused as a cleaning solution.

In order to prevent the clogging from scattering when the compressed air is sprayed onto the road surface after the cleaning liquid is sprayed by the drainage function recovery vehicle 600, as shown in FIG.
As shown in (b) and (c), the periphery of the spray bar 612, the compressed air ejection nozzle 513, and the suction port 516 may be covered with a cover 620. Further, in order to improve the ability to remove clogging, a plurality of drainage function recovery vehicles may be used. A spray bar 612 for spraying the cleaning liquid may be installed in front of the vehicle, for example, under the driver's cab 603, in order to allow the cleaning liquid to penetrate into the voids of the drainage pavement by the clogging.

As described above, in the modified example 2 of the second embodiment, the drainage function recovery vehicle 600 performs the spraying of the cleaning liquid, the blowing of the compressed air, and the suction recovery of the polluted liquid by the drainage function recovery vehicle 600. A single vehicle was used to remove clogging from the pavement. Cleaning liquid tank 610 and pollutant liquid tank 5
Since 11 and the like are mounted on one vehicle, the base vehicle becomes relatively large, but the removal work of clogging can be performed by one vehicle, which is efficient. Further, as in the case of the second embodiment described above, it is not necessary to collect the polluted liquid, filter it, and reuse it as a cleaning liquid. Therefore, a vehicle speed of 10 km that does not require traffic regulation during the removal work of the clogging / H can be traveled, and construction can be performed efficiently. Further, the cleaning liquid tank 6 is used during the construction of the cleaning liquid after filtration.
If it is configured to be returned to 10 and reused as the cleaning liquid, it is possible to increase the continuously workable area in which the removal work of the clogging can be continuously performed.

<< Third Embodiment >> FIG. 17 and FIG.
The side view of the working posture and forwarding posture of a vehicle equipped with the device for removing clogging of drainage pavement according to the third embodiment is shown. In the third embodiment, as in the second modification of the second embodiment described above, spraying of the cleaning liquid, spraying of compressed air, and suction / collection of the polluted liquid are performed by one vehicle, and at the time of work. The cleaning unit for performing these operations is widened so that the work width is adjusted to the width of the lane, and the width of the cleaning unit is reduced during forwarding when no operation is performed. Since the method of spraying the cleaning liquid, spraying the compressed air, and sucking and collecting the contaminated liquid has been described in detail in the first and second embodiments, the expansion and contraction of the cleaning unit will be mainly described here.

Drainage function recovery vehicle 70 shown in FIGS. 17 and 18.
0, 701 is a vehicle body, 702 is a wheel provided on the lower surface of the vehicle body 701, 703 is a driver's cab provided on one side (left side in FIG. 17) of the vehicle body 701.
A steering device such as an operating handle, a drive device for wheels, an engine, a vacuum pump and a compressor described later, and an operating device for expanding and contracting the cleaning unit are installed.

Reference numeral 710 is a cleaning liquid tank provided on the vehicle body 701 on the cab 703 side for storing the cleaning liquid, 711 is a contamination liquid tank provided on the rear side of the vehicle for storing the contamination liquid, and 712 is a contamination liquid tank 711. A vacuum pump or a blower, which is attached to
Reference numeral 13 is a compressor for compressed air. 714 is a cleaning liquid pipe connecting the cleaning liquid tank 710 and a spray bar described later, 716 is a compressed air pipe connecting the compressor 713 and an air jet nozzle described later, and 718 is a connection between the pollution liquid tank 711 and a suction port described later. It is a suction hose.

Note that the pollutant tank 711 is similar to the pollutant tank 411A of the above-described second embodiment, in that the polluted solution collected by suction is filtered by the filter 420.
It has the function of separating the cleaning liquid and clogging substances. The cleaning liquid from which the clogs have been separated is transferred to the cleaning liquid tank 710 via a pump, a pipe or the like (not shown) and is reused as the cleaning liquid. Further, in the third embodiment, the cleaning liquid tank 710 is not provided with a low-pressure pump, and the cleaning liquid in the cleaning liquid tank 710 naturally flows out by gravity and is sprayed. In addition, you may make it install a low pressure pump like the above-mentioned 1st, 2nd embodiment, and may spray a cleaning liquid at a fixed flow rate. Further, as in the second modification of the second embodiment described above, the vacuum pump 712 may have a function as a compressor, and the compressor 713 may be omitted.

Reference numeral 720 is a spray bar, an air jet nozzle,
This is a cleaning unit composed of a suction port. FIG. 19 shows
It is an expanded sectional view which looked at one washing unit 720 from the lateral direction of the vehicle. The cleaning unit 720 is covered with a cleaning unit cover 721 in order to prevent the cleaning liquid and the contaminated liquid from scattering around. The cleaning unit 720 is provided below the tail lamp unit TL behind the drainage function recovery vehicle 700, and is composed of two cleaning units 720F and 720R that can be expanded and contracted in the vehicle width direction. The cleaning unit 720F is the cleaning unit 7
It is provided on the front side of the vehicle with respect to 20R. The cleaning units 720F and 720R are collectively referred to as a cleaning unit 720. A method of expanding / contracting the cleaning unit 720 will be described later.

Numeral 740 is a hydraulic cylinder for raising and lowering the cleaning unit 720, which is extended to ground the cleaning unit 720 when removing the clogging of the drainage function recovery vehicle 700.
At the time of forwarding without performing the removing operation, it contracts and separates the cleaning unit 720 from the road surface as shown in FIG.

FIG. 20 shows the cleaning unit 72 shown in FIG.
FIG. 3 is a front view of 0 viewed from the vehicle front side, and a cleaning unit cover 721 is omitted for easy viewing. The cleaning units 720F and 720R have the same structure.

In FIG. 19, 715 is a cleaning liquid pipe 71.
The spray bar is connected to the cleaning liquid tank 710 via 4 and sprays the cleaning liquid on the surface of the drainage pavement. 717
Is an air ejection nozzle that is connected to the compressor 713 via a compressed air pipe 716 and blows compressed air to the road surface after spraying the cleaning liquid. A suction port 719 is connected to the pollutant liquid tank 711 via a suction hose 718 and sucks and collects the clogging material and the cleaning liquid scattered by being blown with compressed air. As shown in FIG. 19, the spray bar 715, the air ejection nozzle 717, the suction port 71 from the vehicle traveling direction side.
9 is provided.

The spray bar 715 is arranged at a position higher than the air jet nozzle so as to spray the cleaning liquid in the widest possible area. The upper surface of the cleaning unit cover 721 is lowered at the position of the air ejection nozzle 717 in order to prevent the contaminated liquid from being widely scattered by the compressed air blown by the air ejection nozzle 717.
It becomes higher again at the position of the suction port according to the shape of 19. The spray bar 715, the air ejection nozzle 717, and the suction port 719 are directly fixed to the cleaning unit cover 721 by bolts (not shown) or the like. Air jet nozzle 7
As shown in FIG. 3 of the first embodiment described above, holes 17 having a diameter of about 1 mm are laterally arranged at intervals of several mm at the tip of 17. Air ejection nozzle 717 and suction port 719
Are arranged in the cleaning unit cover 721 so as to extend over the width of the vehicle.

Next, expansion / contraction of the cleaning unit 720 will be described. FIG. 21 shows the cleaning unit 720 shown in FIG.
22 (a) and 22 (b) are a plan view and a side view of the rear cleaning unit 720R.
21, 22A, and 22B show the cleaning unit 720 in the working posture. At this time, the cleaning unit 72
The lifting hydraulic cylinder 740 of 0 extends and the cleaning unit 720 is grounded to the road surface. The cleaning unit 72
If 0 is grounded, cleaning unit cover 721
Is not in contact with the road surface, but the traveling roller 722 attached to the cleaning unit cover 721 is in contact with the road surface. In the working posture, the traveling roller 722 rotates in accordance with the traveling of the drainage function recovery vehicle 700 and moves in the traveling direction. Pipes are omitted for clarity.

In the peripheral views of the cleaning unit 720 shown in FIGS. 21, 22 (a) and 22 (b), 730 supports the front and rear cleaning units 720F and 720R and is attached to the rod side of the lifting hydraulic cylinder 740. A base 731 that moves up and down as the lifting hydraulic cylinder 740 expands and contracts.
Is an upper plate fixed to the lower end surface of the base 730 by bolts (not shown) or the like, and 732 is a lower plate connected to the upper plate 731 so as to be slidable in the left-right direction of the vehicle. Reference numeral 735 is a connecting portion that connects the lower plate 732 and the cleaning unit cover 721. 733
Is a sliding hydraulic cylinder for sliding the lower plate 732 in the vehicle left-right direction with respect to the upper plate 731, and 734 is a sliding hydraulic cylinder 73.
3 is a mounting member including a stay and a pin for fixing the tube side of 3 to the upper plate 731 and the rod side to the lower plate 732. By the expansion and contraction operation of the sliding hydraulic cylinder 733, the lower plate 732 connected to the rod side of the sliding hydraulic cylinder 733 slides in the vehicle left-right direction with respect to the upper plate 731.

The base 730 is provided on its lower surface in the vehicle front-rear direction with convex portions for fixing the front and rear upper plates 731, respectively, and the sliding hydraulic cylinder 733 is provided between the lower end of the convex portion and the lower surface of the base 730. There is enough space to store. In addition, the base 730 includes front and rear cleaning units 720F and 720R, upper and lower plates 731 and 7
It has sufficient strength to support 32 and the like.

Upper plate 731 and lower plate 732
The lower plate 732 and the upper plate 73 are connected to each other.
1 is connected via a sliding mechanism that can slide in the vehicle left-right direction. As the sliding mechanism, for example, a dovetail groove as shown in FIG. 23 can be used.

In the enlarged view of the periphery of the cleaning unit 720 shown in FIG. 21, when the slide hydraulic cylinder 733 is expanded and contracted by driving a hydraulic pump or the like described later, the front and rear cleaning units 720F and 720R have upper and lower plates 73.
Through the sliding mechanism of 1,732, the vehicle left-right direction, that is,
Slide in the direction perpendicular to the page. In addition, here
The front cleaning unit 720F slides on the front side of the paper, and the rear cleaning unit 720R slides on the back side of the paper.

FIG. 24 shows a vehicle 70 for recovering drainage function in a work posture in which the cleaning unit 720 is widened in the left-right direction of the vehicle.
0 shows a rear view of 0. Note that piping and the like are omitted for clarity. The slide hydraulic cylinder 733 shown in FIG. 24 expands and contracts the rear cleaning unit 720R. In FIG. 24, the slide hydraulic cylinder 733 that expands and contracts the front cleaning unit 720F is hidden by the base 722 and is not shown. Therefore, FIG.
24 shows a front cleaning unit 720F and a slide hydraulic cylinder 733 for the front cleaning unit 720F corresponding to FIG. As shown in FIGS. 24 and 25, in the working posture of the drainage function recovery vehicle 700, the rear washing unit 720R is slid to the left side of the vehicle by the sliding hydraulic cylinder 733, and the front washing unit 720F is sliding hydraulic cylinder 733. Is slid to the right side of the vehicle by the front and rear washing units 720F, 72
The width of 0R is widened to the width of the lane wider than the vehicle width. These cleaning units 720F and 720R move in the traveling direction as the drainage function recovery vehicle 700 travels due to the rotation of the traveling roller 722.

FIG. 26 is a rear view of the drainage function recovery vehicle 700 in the forwarding posture state. In the drainage function recovery vehicle in the forwarding posture shown in FIG. 26, only the rear washing unit 720R is shown. Therefore, the cleaning unit 720F on the front side
Are shown in FIG. 27 corresponding to FIG. Although the pipes and the like are omitted for clarity, the pipes and the like are routed so that they can be easily moved together with the cleaning unit 720 when the cleaning unit 720 is expanded / contracted and moved up and down. Figure 2
As shown in FIGS. 6 and 27, when the drainage function recovery vehicle 700 is forwarded, the cleaning unit 720 is separated from the road surface due to the contraction of the lifting hydraulic cylinder 740, and the width of the cleaning unit 720 is reduced due to the contraction of the sliding hydraulic cylinder 733. It is contained within the width.

FIG. 28 shows a hydraulic circuit diagram of a device for removing clogging of pavement according to the third embodiment. In the hydraulic circuit of FIG. 28, 1 is a hydraulic pump driven by the traveling engine M of the drainage function recovery vehicle 700, 2 is a hydraulic motor driven by pressure oil supplied from the hydraulic pump 1, and drives a compressor 713, 3 Is an electromagnetic switching valve that controls the flow of pressure oil supplied to the hydraulic motor 2. Reference numeral 4 is a hydraulic motor driven by pressure oil supplied from the hydraulic pump 1 and driving the vacuum pump 712. Reference numeral 5 is an electromagnetic switching valve controlling the flow of pressure oil supplied to the hydraulic motor 4. 6 is a hydraulic motor that is driven by pressure oil supplied from the hydraulic pump 1 and drives a low-pressure pump 421 for filtering the contaminated liquid in the contaminated liquid tank 711, and 7 is a flow of the pressure oil supplied to the hydraulic motor 6. This is an electromagnetic switching valve that controls the. 8 is an electromagnetic switching valve that controls the flow of pressure oil supplied from the hydraulic pump 1 to the lifting hydraulic cylinder 740, and 9 is the pressure supplied from the hydraulic pump 1 to the sliding hydraulic cylinders 733 of the front and rear cleaning units 720F and 720R. It is an electromagnetic switching valve that controls each oil flow.

10 is a power source, 11 is a drainage recovery vehicle 700
This is a normally closed contact point that is opened when the vehicle speed is, that is, when the drainage function recovery vehicle 700 is running. 12 is a cab 70
3 is an expansion / contraction switch for the operator to select the expansion / contraction of the cleaning unit 720, and 13 is an elevating switch for installing the cleaning unit 720 in the operator's cab 703. A work switch 14 is installed in the operator's cab 703 and is operated by the operator when starting and ending the work of removing the clogging object. 15 is provided between the power source 10 and the work switch 14, and is provided with a cleaning unit 720.
It is a normally open contact that is closed by grounding to the road surface. In addition,
To detect that the cleaning unit 720 is grounded to the road surface, a limit switch may be provided on the lifting hydraulic cylinder 740, or the upper plate 731 and the lower plate 7 may be provided.
It may be detected from the load applied to 32 or the load applied to the traveling roller 722.

The contact c of the expansion / contraction switch 12 and the contact c of the elevating switch 13 are connected to the normally closed contact 11, respectively.
When the drainage function recovery vehicle 700 is stopped and the normally closed contact 11 is closed, the vehicle is connected to the power supply 10. The expansion side contact a of the expansion / contraction switch 12 is connected to each expansion side solenoid 9a of the two electromagnetic switching valves 9, and the contraction side contact b is connected to each contraction side solenoid 9b of the two electromagnetic switching valves 9. To be done. The contact a on the lower side of the elevating switch 13 is connected to the solenoid 8a on the lower side of the electromagnetic switching valve 8, and the contact b on the rising side is connected to the solenoid 8b on the upper side of the electromagnetic switching valve 8.

If the operator operates the expansion / contraction switch 12 to the extension side while the drainage function recovery vehicle 700 is stopped and the normally closed contact 11 is closed, the voltage of the power source 10 is applied to the solenoids 9a of the two electromagnetic switching valves 9. Applied respectively. Each electromagnetic switching valve 9 is switched to the position a, the pressure oil from the hydraulic pump 1 is supplied to the bottom chamber of the sliding hydraulic cylinder 733 via the electromagnetic switching valve 9, and the sliding hydraulic cylinder 733 expands. As a result, the front and rear cleaning units 7
20F and 720R slide to the right and left of the vehicle, respectively, and the cleaning unit 720 can be widened to the width of the lane as shown in FIG. On the other hand, when the operator operates the expansion / contraction switch 12 to the contraction side, the voltage of the power supply 10 is applied to the solenoids 9b of the two electromagnetic switching valves 9, respectively. Each electromagnetic switching valve 9 switches to the position b, the pressure oil from the hydraulic pump 1 is supplied to the rod chamber of the sliding hydraulic cylinder 733 via the electromagnetic switching valve 9, and the sliding hydraulic cylinder 733 contracts. This allows
The front and rear cleaning units 720F and 720R slide toward the inside of the vehicle, respectively.
Can fit within the width of the vehicle. The expansion / contraction operation of the cleaning unit 720 is performed when the cleaning unit 720 is separated from the road surface by the lifting operation of the cleaning unit 720 described below.

While the drainage function recovery vehicle 700 is stopped, the sliding hydraulic cylinder 733 is extended to widen the cleaning unit 720 to a desired lane width as described above, and then the operator sets the elevating switch 13 to the lower side. When operated, power supply 1
A voltage of 0 is applied to the solenoid 8a of the electromagnetic switching valve 8. The electromagnetic switching valve 8 switches to the position a, and the hydraulic pump 1
Is supplied to the bottom chamber of the lifting hydraulic cylinder 740, and the lifting hydraulic cylinder 740 expands. As a result, the base 730 supporting the cleaning unit 720 is lowered and the cleaning unit 720 is grounded on the road surface. On the other hand, when the operator operates the up / down switch 13 to the up side, the power source 10
Is applied to the solenoid 8b of the electromagnetic switching valve 8.
The electromagnetic switching valve 8 is switched to the position b, the pressure oil from the hydraulic pump 1 is supplied to the rod chamber of the lifting hydraulic cylinder 740, and the lifting hydraulic cylinder 740 contracts. As a result, the base 730 supporting the cleaning unit 720 rises and the cleaning unit 720 separates from the road surface.

As described above, the lifting hydraulic cylinder 740
Is extended and the cleaning unit 720 is grounded on the road surface, the normally open contact 15 is closed. Work switch 14 depending on the operator
When is operated to be turned on, the voltage of the power source 10 is applied to the solenoids of the electromagnetic switching valves 3, 5, 7. The electromagnetic switching valve 3 is switched to the position a, and the pressure oil from the hydraulic motor 1 is supplied to the hydraulic motor 2 via the electromagnetic switching valve 3. As a result, the compressor 713 is driven and the compressed air is supplied to the air injection nozzle 71 via the compressed air pipe 716.
Erupted from 7. Further, the electromagnetic switching valve 5 is switched to the position a, and the pressure oil from the hydraulic motor 1 is supplied to the hydraulic motor 4 via the electromagnetic switching valve 5. As a result, the vacuum pump 712 is driven, and the inside of the pollutant tank 711 is made to have a negative pressure, and the pollutant is sucked and collected from the suction port 719 into the pollutant tank 711. Further, the electromagnetic switching valve 7 is switched to the position a, and the pressure oil from the hydraulic motor 1 is supplied to the hydraulic motor 6 via the electromagnetic switching valve 7. As a result, the pollution liquid tank 71
1 is driven to drive the low-pressure pump 421 for filtering the contaminated liquid, and the contaminated liquid in the contaminated liquid tank 711 is filtered by the filter 4
Filter through 20. The filtered cleaning liquid is transferred to the cleaning liquid tank 710 via the pipe P.

On the other hand, when the operator turns off the work switch 14, the electromagnetic switching valves 3, 5 and 7 are respectively switched to the positions b, and the pressure oil from the hydraulic pump 1 is shut off. As a result, the work of removing the clogging by the cleaning unit 720 is stopped. At this time, the pressure oil from the hydraulic pump 1 is returned to the tank 17 via the relief valve 16.

The cleaning liquid tank 710 is provided with a valve (not shown) interlocking with the work switch 14. When the work switch 14 is turned on, it opens to spray the cleaning liquid on the road surface, and when the work switch is turned off. It is configured to close and stop spraying the cleaning liquid. In addition, the cleaning liquid pipe 71
4, the compressed air pipe 716 and the suction hose 719 have flexibility, and the expansion / contraction of the cleaning unit 720,
It can deform as it goes up and down.

Next, the operation of the drainage function recovery vehicle 700 according to the above-described third embodiment will be described. The drainage recovery vehicle 700 before the work of removing the clogging is shown in FIG.
8, the forwarding posture is as shown in FIG.

In order to start the work of removing the clogging of the drainage pavement, the drainage function recovery vehicle 700 is run to the lane where the work of removing the clogging is removed and stopped. At this time, the ignition switch of the vehicle remains on. When the drainage function recovery vehicle 700 is stopped, the operator first operates the expansion / contraction switch 12 to the extension side and slides the front and rear washing units 720F and 720R in the left-right direction of the vehicle to widen the width of the lane. Next, the operator operates the elevating switch 13 to the lower side, lowers the front and rear washing units 720F and 720R that have been widened to the width of the lane, and grounds them to the road surface. At this time, the cleaning unit 720 can be moved together with the vehicle by the rotation of the traveling roller 722.

As shown in FIGS. 17 and 24, with the front and rear washing units 720F and 720R widened and grounded on the road surface, the drainage function recovery vehicle 700 starts running and the operator operates the work switch 14. . When the work switch 14 is turned on by the operation of the operator, the spray bar 715 sprays the cleaning liquid on the surface of the drainage pavement, and the air jet nozzle 717 sprays the compressed air on the road surface after the cleaning liquid is sprayed to form a gap in the drainage pavement. Remove the clogged plug. Further, the polluted liquid which has been sprayed with compressed air from the suction port 719 and scattered is collected by suction. The polluted liquid collected by suction is separated into a clogging material and a cleaning liquid in the pollution liquid tank 711, and the separated cleaning liquid is returned to the cleaning liquid tank 710 and reused as the cleaning liquid.

When finishing the work of removing the clogging of the drainage pavement, the operator operates the work switch 14 to turn it off. As a result, the spraying of the cleaning liquid from the spray bar 715, the blowing of the compressed air by the air jet nozzle 717, and the suction of the polluted liquid from the suction port 719 are all stopped. After stopping the drainage function recovery vehicle 700, the operator operates the elevating switch 13 to the up side to separate the front and rear washing units 720F and 720R from the road surface. Next, the operator operates the expansion / contraction switch 12 to the contraction side, and slides the front and rear cleaning units 720F and 720R inward of the vehicle. As shown in FIG. 26, front and rear cleaning units 720
F and 720R are stored within the width of the vehicle to be in the forwarding posture, and a series of clogging object removal work is completed. The drainage function recovery vehicle 700 in the forward posture can travel at the legal speed.

The above-mentioned front and rear cleaning units 72
Lifting hydraulic cylinder 740 for lifting 0F and 720R
Instead of the above, a lifting hydraulic cylinder 741 as shown in FIGS. 29 and 30 may be provided. 29 is a side view of the working posture of the drainage function recovery vehicle 700A including the lifting hydraulic cylinder 741 and FIG. 30 is an enlarged view of the vicinity of the cleaning unit 720.

As shown in FIGS. 29 and 30, a base 730A for supporting the front and rear cleaning units 720F and 720R.
Are fixed to the vehicle body 701 by bolts (not shown) or the like. Two upper plates 7 are provided on the lower end surface of the base 730A.
31, cleaning units 720F and 720R are connected to the lower surface of a lower plate 732 slidably connected to the upper plate 731 via lifting hydraulic cylinders 741. The rod side of the lifting hydraulic cylinder 741 is fixed to the lower plate 732, and the bottom side of the hydraulic cylinder 741 is fixed to the cleaning unit cover 721 by bolts or the like not shown.

29 and 30, the lifting hydraulic cylinder 741 is extended to ground the cleaning unit 720 to the road surface during the removal work of the clogging of the drainage pavement, and the lifting hydraulic cylinder 741 is provided except during the removal work. To remove cleaning unit 720 from the road surface. The method of widening the cleaning unit 720 is as described above.

When the lifting hydraulic cylinder 741 is directly attached to the front and rear washing units 720F and 720R as described above, two hydraulic cylinders are required, but it is necessary to support the weight of the base 730 and the upper and lower plates 731 and 732. Therefore, the strength of the hydraulic cylinder does not have to be so strong.

Further, the cleaning unit 720 is expanded / contracted not by the expansion / contraction of the slide hydraulic cylinder 733, but by the operation shown in FIG.
Alternatively, a rack and pinion mechanism using a hydraulic motor 750 may be used as shown in FIGS. Figure 3
1 (a) and 1 (b) show the cleaning unit 720R on the rear side, and the upper plate 731 fixed to the base 730.
A hydraulic motor 750 for driving the rack and pinion mechanism 751 is fixed to A by a bolt or the like (not shown). A lower plate 73 slidably connected to the upper plate 731A through a sliding mechanism such as a dovetail groove.
The rack of the rack and pinion mechanism 751 is provided in 2A so as to extend in the width direction of the vehicle.

When the operator operates the expansion / contraction switch 12 to the extension side while the vehicle is stopped, the pressure oil from the hydraulic pump 1 is supplied to the hydraulic motor 750. The rack-and-pinion mechanism 751 is driven by the hydraulic motor 750, and the lower plate 732A slides with respect to the upper plate 731A in the left-right direction of the vehicle, in this case, the downward direction of FIG. As a result, the cleaning unit 720 can be expanded to the width of the lane. When contracting the width of the cleaning unit 720, the operator operates the expansion / contraction switch 13 to the contraction side while the vehicle is stopped to reverse the hydraulic motor 750 and slide the cleaning unit 720 inward of the vehicle. This allows the cleaning unit 720 to fit within the width of the vehicle.

As described above, the drainage function recovery vehicle 70 equipped with the clogging removing device according to the third embodiment.
0 indicates that the width of the cleaning unit 720 including the spray bar 715 for spraying the cleaning liquid, the air jet nozzle 717 for blowing the compressed air, and the suction port 719 for sucking the polluted liquid is within the width of the vehicle by the operation from the driver's cab. It is configured so that it can be expanded or reduced to the width of the lane.

In the conventional method of spraying high-pressure water on the surface of drainage pavement, a high-pressure pump for injecting high-pressure water requires a large amount of power, and it is difficult to expand the cleaning unit to the width of the lane. It was For this reason, at least two steps are required to remove the clogging of one lane, which lengthens the construction time and increases the construction cost. In the third embodiment of the present invention, the method of removing the clogging substances by spraying the cleaning liquid and blowing the compressed air instead of the high pressure water is adopted, and therefore, it is necessary when the clogging substances are removed. Power is reduced. As a result, the cleaning unit 720 can be widened to the width of the lane and the work of removing the clogging of one lane can be performed in one step, and the work of removing the clogging can be efficiently performed.

Further, since the sucked / collected polluted liquid is separated into the clogging material and the cleaning liquid and the separated cleaning liquid is reused, the clogging material can be removed continuously. Continuous workable time and continuous workable area increase. Furthermore, the amount of cleaning liquid per unit area sprayed on the surface of the drainage pavement is much smaller than when spraying high-pressure water. Therefore, it is not necessary to travel at a low speed to filter the collected polluted liquid for filtration, and it is possible to perform the work of removing the clogging while traveling at a vehicle speed of about 10 km / h, which does not require traffic regulation. it can.

Further, since the cleaning unit 720 can be expanded / contracted and lifted / lowered only when the vehicle is stopped, the cleaning unit 720 is apologized while the vehicle is traveling.
It is safe because it does not go up and down.

<< Modification of Third Embodiment >> The third embodiment
In the embodiment of the above, in a drainage function recovery vehicle equipped with all the functions of the clogging matter removing device in one vehicle,
The method for expanding and contracting the cleaning unit has been described. However, the expansion and contraction of the cleaning unit can be applied to each of the vehicles described in the first and second embodiments. For example, in the spraying / washing vehicle 300 of the modified example of the first embodiment shown in FIG. 7A, two washing units including the spray bar 112 and the air jet nozzle 211 are provided in the vehicle front-rear direction to cause clogging. When removing the object, the front and rear washing units are slid in the left-right direction of the vehicle to be widened to the width of the lane. At this time, the width of each cleaning unit may be narrower than the vehicle width.

FIG. 32 shows a hydraulic circuit diagram when the device for removing clogging according to the modification of the third embodiment is mounted on the spraying / washing vehicle 300. Note that the third shown in FIG.
Parts having the same functions as those in the hydraulic circuit diagram of the embodiment are given the same reference numerals and detailed description thereof will be omitted.

In the hydraulic circuit diagram shown in FIG. 32, 20 is a hydraulic motor driven by the pressure oil supplied from the hydraulic pump 1 to drive the low pressure pump 111 which supplies the cleaning liquid in the cleaning liquid tank to the spray bar 112 at a constant flow rate, 21
Is an electromagnetic switching valve that controls the flow of pressure oil supplied from the hydraulic pump 1 to the hydraulic motor 20.

The expansion / contraction of the cleaning unit by the sliding hydraulic cylinder 733 and the lifting / lowering of the cleaning unit by the lifting hydraulic cylinder 740 are the same as those in the third embodiment described above, and these operations are performed while the vehicle is stopped. . After the cleaning unit is widened and grounded on the road surface, when the operator turns on the work switch 14, the electromagnetic switching valve 3 is switched to the position a and the hydraulic motor 2 is driven by the pressure oil from the hydraulic pump 1.
Is driven, and the compressor 210 is driven. As a result, compressed air is blown from the air ejection nozzle 211 onto the surface of the drainage pavement. At the same time, the electromagnetic switching valve 21
Is also switched to the position a, and the pressure oil from the hydraulic pump 1 is supplied to the hydraulic motor 20 via the electromagnetic switching valve 21. As a result, the low-pressure pump 111 is driven, the cleaning liquid in the cleaning liquid tank 110 is supplied to the spray bar 112 at a constant flow rate, and is sprayed on the surface of the drainage pavement.

After the operator turns off the work switch 14 to finish spraying the cleaning liquid and blowing the compressed air, while the vehicle is stopped, the elevating switch 13 is operated to the up side to raise the cleaning unit and the expansion / contraction switch. 12 is operated to the expansion / contraction side so that the width of the cleaning unit is set within the width of the vehicle and the feeding posture is set to end the series of work for removing the clogging.

In the spraying / washing vehicle 300 equipped with the clogging removing device according to the modification of the third embodiment, when the washing unit is far from the road surface so as not to interfere with the road surface, The hydraulic cylinder 740 for use may be omitted.

As described above, in the modification of the third embodiment, the expansion / contraction function of the cleaning unit described in the third embodiment is applied to the spraying / cleaning vehicle 300. This allows
It is efficient because it is possible to remove clogging in one lane in one step. Further, the expansion / contraction function of the cleaning unit is not limited to the spraying / cleaning vehicle 300, but the spraying vehicle 100, the cleaning vehicle 2
00, washing suction wheel 500, etc., respectively.

<Fourth Embodiment> In the fourth embodiment, the cleaning unit is configured to be movable according to the shape of the road surface so that the clogging of the drainage pavement can be removed more efficiently. To

33 and 34, a drainage function recovery vehicle 80 equipped with a device for removing clogging according to the fourth embodiment.
The side view and the rear view of the working posture of 0 are shown. Further, FIGS. 35 and 36 show a side view and a rear view of a forwarding posture of a drainage function recovery vehicle 800 equipped with a device for removing clogging according to the fourth embodiment. In the drainage function recovery vehicle 800 shown in FIGS. 33 to 36, the portions having the same functions as those of the drainage function recovery vehicle 700 according to the third embodiment shown in FIGS. Detailed description is omitted. Here, differences from the above-described embodiment will be mainly described.

As shown in FIGS. 33 to 36, the cleaning unit 820 of the drainage function recovery vehicle 800 is composed of two front cleaning units 820F and two rear cleaning units 820R. As will be described later with reference to FIG. 41, the front and rear washing units 820F and 820R can be swung vertically and horizontally by a swing mechanism 1000. In the posture for removing clogging, the two front cleaning units 820F and the two rear cleaning units 820R are arranged alternately, and cover the vehicle width of one lane without any gap. On the other hand, as shown in FIG. 39, the cleaning unit 820 is accommodated within the width of the vehicle in the forwarding posture in which the work of removing the clogging is not performed. Similar to the third embodiment shown in FIGS. 19 and 20, the cleaning unit 820 includes a spray bar 715 for spraying the cleaning liquid, an air jet nozzle 717 for blowing compressed air onto the road surface, and a suction port for sucking the polluted liquid. It has 719.
The cleaning unit 820 surrounds the cleaning unit cover 821.
And is moved by the traveling roller 822 attached to the cleaning unit 821 in the traveling direction as the vehicle travels.

FIG. 37 shows a side view of the periphery of the cleaning unit 820. In FIG. 37, the left side of the drawing is the traveling direction of the vehicle. 38 and 39 are plan views of the periphery of the cleaning unit 820 as seen from above, showing a work posture and a forwarding posture, respectively. 38 and 39, the upper direction of the drawings is the traveling direction of the vehicle.

37 to 39, reference numeral 810 is connected to the lifting hydraulic cylinder 740, a base for supporting the cleaning unit 820, 811 and 812 are continuously provided on the lower surface of the base, and are connected to a bracket or the like described later. It is a connecting surface for doing. Reference numerals 832 and 842 denote brackets slidably connected to the rear and front connecting surfaces 811 and 812 of the base 810, and 833 and 843 denote upper plates fixed to the rear and front brackets 832 and 842, respectively. , 844 are lower plates slidably connected to the upper plates 833, 843 on the rear and front sides, respectively.

Reference numerals 830 and 840 are slide hydraulic cylinders fixed to the connecting surfaces 811 and 812 and the brackets 832 and 842, respectively. The hydraulic cylinders 830 and 840 for sliding are connected to the connecting surface 8 on the tube side thereof.
11 and 812 are fixed to the brackets 832 and 842 by bolts (not shown) on the rod side. 831 and 841 are upper plates 833 and 843 and lower plates 834 and 844.
The hydraulic cylinders for slide are fixed to the respective.
The hydraulic cylinders 831 and 841 for sliding are fixed to the upper plates 833 and 843 on their tube sides by bolts or the like not shown, and are fixed to the lower plates 834 and 844 on the rod side by bolts or the like not shown.

The connecting portions of the connecting surfaces 811 and 812 and the brackets 832 and 842 are connected to each other through a sliding mechanism such as a dovetail groove. As the sliding hydraulic cylinders 830 and 840 are driven to expand and contract. It can slide to the left and right of the vehicle. Similarly, the upper plate 83
3, 843 and the lower plates 834, 844 are connected to each other via a sliding mechanism such as a dovetail groove, and slide in the left-right direction of the vehicle as the sliding hydraulic cylinders 831 and 841 are extended and contracted. It is possible.

As shown in FIG. 39, the hydraulic cylinders for sliding 830, 831, 840, 84 in the forwarding posture.
1 is contracted, and the cleaning unit 820 is stored within the width of the vehicle. When the cleaning unit 820 is in the work posture, the operator stops the vehicle and the cleaning unit 820
Is moved away from the road surface, the expansion / contraction switch 12 provided in the operator's cab is operated to the extension side. The slide hydraulic cylinders 830, 831, 8 are interlocked with the operation of the expansion / contraction switch 12.
40,841 extends.

The expansion of the sliding hydraulic cylinder 830 causes the bracket 832 to slide to the right side of the vehicle. At the same time, the two sliding hydraulic cylinders 831 respectively extend to slide the lower plate 834 on the right side to the right side of the vehicle and the lower plate 834 on the left side to the left side of the vehicle. As a result, the cleaning unit 820R on the rear side is widened. Similarly, the extension of the sliding hydraulic cylinder 840 causes the bracket 842 to slide to the left side of the vehicle. At the same time, two slide hydraulic cylinders 841
Respectively, the lower plate 844 on the right side slides to the right side of the vehicle, and the lower plate 844 on the left side slides to the left side of the vehicle. As a result, the cleaning unit 82 on the front side
0F is widened. All slide hydraulic cylinders 83
After the 0,831,840,841 are expanded,
As shown in FIG. 5, the front and rear washing units 820F and 820R are alternately arranged and widened to the vehicle width to cover one lane without any gap. After the cleaning unit 820 has expanded to the vehicle width, the lifting hydraulic cylinder 740 is extended to ground the cleaning unit 820 to the road surface.

On the other hand, when the washing unit is moved from the working posture shown in FIG. 38 to the forwarding posture, the operator stops the vehicle and the washing unit 820 is away from the road surface. Operate 12 to the contraction side.
The sliding hydraulic cylinders 830, 831, 840, 841 contract in association with the operation of the expansion / contraction switch 12.

The contraction of the sliding hydraulic cylinder 830 causes the bracket 832 to slide to the left side of the vehicle. At the same time, the two hydraulic cylinders 831 for sliding contract respectively to slide the lower plate 834 on the right side to the left side of the vehicle and the lower plate 834 on the left side to the right side of the vehicle. As a result, the rear cleaning unit 820R is housed within the width of the vehicle. Front cleaning unit 820F
Similarly, it is accommodated within the width of the vehicle and has a forwarding posture as shown in FIG.

Next, a structure for moving the cleaning unit 820 in the drainage function recovery vehicle 800 of the third embodiment following the sectional shape of the road surface will be described. Figure 40
FIG. 40A is a detailed side view of the swing mechanism 1000 of the B portion in FIG. 37, and FIG. 40B is a plan view thereof. 41 (a) is an enlarged view of the C portion of FIG. 40 (a).
41 (b) is a view seen from the arrow D in FIG. 41 (a).

40 (a), 40 (b), 41 (a),
In (b), 850 is a link whose upper end is connected to the lower plate 834 by a pin, and two links are arranged parallel to the vehicle front-rear direction. 851 has its upper end connected to the lower plate 834 by a pin, and has its lower end connected by a pin to the link 85 on the vehicle rear side.
It is a damper connected to 0. 40 (a) and 41
As shown in (a), the parallel link 850 is arranged so that its upper portion is inclined toward the traveling direction of the vehicle, and forms a substantially V shape with the damper 851. This allows
The vertical vibration of the cleaning unit 820 is absorbed. Figure 4
As shown in 0 (b), the parallel links 850 are provided at both ends of the lower plate 834 in the vehicle left-right direction. Although the damper 851 is provided only on one side of the lower plate 834 here, it may be provided at both ends.

Reference numeral 855 is an upper block to which the lower end of the parallel link 850 is connected via a pin, 856 is a lower block fixed to the cleaning unit cover 821 by bolts (not shown), and 857 is an upper block 855 and a lower block 856. It is a pin that is swingably connected. The upper block 855 is formed to have a width substantially the same as the width of the lower plate 834 in the vehicle left-right direction, and is connected to the parallel links 850 at the left and right ends thereof. The lower surface of the upper block 855 is integrally provided with a convex portion having a through hole extending in the front-rear direction of the vehicle in order to penetrate the pin 857. Two lower blocks 856 are provided in the vehicle front-rear direction and each has a through hole for allowing the pin 857 to pass therethrough. The pin 857 penetrates through the through holes of the lower block 856 and the upper block 855, respectively,
It is connected so as to be swingable in the left-right direction of the vehicle about 7. The pins 857 are connected to the lower block 856 and the upper block 855.
41 (a), the convex portion of the upper block 855 is inserted between the two lower blocks 856 in the vehicle front-rear direction. Although illustration is omitted, after the pin 857 is inserted, both the upper block 855 and the lower block 856 have the pin 85.
It is configured so that it does not fall from 7.

When the cleaning unit 820 is grounded on the road surface and the road surface shape is not flat and is undulating while moving in the traveling direction, the parallel link 850 and the damper 851 are provided.
Absorbs the vertical vibration of the cleaning unit 820. Thereby, the base 810 and the brackets 832, 8
The cleaning unit 820 moves in the vertical direction of the vehicle with respect to 42 and the like, and the cleaning unit 820 moves following the shape of the road surface. In addition, the upper block 855 and the lower block 856
Since the washing unit 820 can be swung in the left-right direction of the vehicle by the pin 857, the washing unit 820 moves along the shape of the rut even when there is a rut on the road surface along the traveling direction.

Incidentally, in order to expand and contract the cleaning unit 820 described above, the slide hydraulic cylinders 830, 831 and 84 are used.
Although 0,841 is used, hydraulic motors 860,861 and rack-and-pinion mechanisms 862,863 driven by the hydraulic motors 860,861 may be used as shown in FIG.

Further, the parallel link 850 and the damper 85
Although the structure in which the cleaning unit 820 is made to follow the road surface shape has been described by using 1, the pantograph mechanism or the like may be used instead of the parallel link 850 and the damper 851. In this case, for example, four links are attached to the lower plate 834 and the upper block 855 via pins, and they are arranged so that they cross each other to form an X shape. The pin at the position where the four links are connected to the vehicle rear side of the lower plate 834 and the upper block 855 is configured to be movable in the vehicle front-rear direction. Further, the intersecting position of the two links is connected to the hydraulic damper by a pin. When the road surface is not flat, the hydraulic damper expands and contracts as the cleaning unit 820 moves up and down, and movable pins provided on the vehicle rear side of the lower plate 834 and the upper block 855 move in the vehicle front-rear direction. As a result, the cleaning unit 8
20 can move following the road surface shape. Further, only the hydraulic damper may be used without using the pantograph mechanism.

Further, the structure of the cleaning unit 820 is not limited to the above-described embodiment as long as the removal work of the clogging of the drainage pavement can be performed in one lane along the road surface shape in one step. For example, two cleaning units 820 may be provided on the front side and three cleaning units 820 on the rear side.

As described above, the drainage function recovery vehicle 80 equipped with the clogging removing device according to the fourth embodiment.
0 is provided with a plurality of small washing units 820, the washing units 820 can be moved in the left-right direction and the up-down direction of the vehicle, and further, can be rocked in the left-right direction with respect to the front-back direction of the vehicle. At the time of removing work, the cleaning unit 820 is widened to the vehicle width, and the cleaning unit 820 is
Was moved along the road surface shape. As a result, it is possible to complete the work of removing the clogged matter in one lane in one step, and it is possible to remove the clogged matter in every corner even if there is undulation on the road surface. That is, the work of removing the clogging of the drainage pavement can be efficiently performed.

<< Modification of Fourth Embodiment >> FIG.
(A), (b) shows the side view of the working posture of the drainage function recovery vehicle 800A by the modification of 4th Embodiment, and the side view of the forwarding posture, respectively. In the modification of the fourth embodiment, the functions of expanding and contracting the cleaning unit 820 and following the road surface shape described in the fourth embodiment are the same, and the cleaning unit 820 is changed from the working posture to the forwarding posture. Only the mechanism at the time is different. 43 (a),
In (b), portions having the same functions as those of the drainage function recovery vehicle 800 of the fourth embodiment shown in FIGS. 33 and 34 are denoted by the same reference numerals.

43 (a) and 43 (b), 880 is a base for supporting the cleaning unit 820, 881 is a pin joint for swingably connecting the base 880 to the vehicle body 801, and 882 is the cleaning unit 820. It is a hydraulic cylinder for switching between a posture and a forward posture. 883
Is a pin joint that swingably connects the rod side of the hydraulic cylinder 882 and the base 880, and 884 is a pin joint that swingably connects the tube side of the hydraulic cylinder 882 and the tail lamp unit TL.

When the cleaning unit 820 is moved from the forwarding posture shown in FIG. 43 (b) to the working posture shown in FIG. 43 (a) when removing the clogging of the drainage pavement,
The operator operates the elevating switch 13 provided in the driver's cab to the lower side while the vehicle is stopped. Lifting switch 1
The hydraulic cylinder 882 extends in association with the operation of No. 3, and the base 880 supporting the cleaning unit 820 moves downward in the vehicle with the pin joint 881 as a fulcrum. The rod side of the hydraulic cylinder 882 moves together with the pin joint 883 as the base 880 moves. Hydraulic cylinder 8
When 82 is extended and the cleaning unit 820 is in contact with the road surface, the work posture becomes as shown in FIG. 43 (a).

On the other hand, the cleaning unit 820 is shown in FIG.
When shifting from the working posture shown in to the forwarding posture, the operator operates the elevating switch 13 to the raising side. The hydraulic cylinder 882 contracts in conjunction with the operation of the elevating switch 13, and lifts the base 880 with the pin joint 883 as a fulcrum. The base 880 moves upward in the vehicle with the pin joint 881 as a fulcrum, and assumes the forwarding posture as shown in FIG. 43 (b).

The cleaning liquid pipe 714, the compressed air pipe 716 and the suction hose 718 connected to the cleaning unit 820 have flexibility, and the cleaning unit 8
It can be transformed along with the movement of 20. Further, the base 880 has sufficient strength to support the cleaning unit 820 and the like.

As described above, in the modification of the fourth embodiment, the hydraulic cylinder 882 moves the base 880 and the cleaning unit 820 up and down when the cleaning unit 820 is switched between the working position and the forwarding position. did. Since the base 880 moves with the pin joint 881 attached to the vehicle body 801 as a fulcrum, the back side of the cleaning unit 820 faces the rear of the vehicle when in the forwarding posture. As a result, the cleaning unit 820 can be easily viewed, and the cleaning of the cleaning unit 820 can be easily performed.

In the embodiment of the present invention described above, the spray bar is used as the spraying section and the compressed air jet nozzle is used as the jetting section. Further, an air compressor is used as the gas compression unit, a vacuum pump or a blower is used as the negative pressure generation unit, a cleaning liquid tank is used as the first tank, and a second tank is used.
A pollutant tank was used as each tank.

In the above-described embodiment, an example of spraying the cleaning liquid and spraying high pressure air has been described, but instead of this, high pressure water may be sprayed.

[0161]

As described above, according to the method and the apparatus for removing the clogging material of the pavement of the present invention, the clogging material in which the liquid penetrates by spraying a high-pressure gas on the pavement surface on which the liquid is sprayed. Therefore, it is possible to efficiently remove the clogging material that is clogged in the pavement voids. Further, as described above, the system for removing clogging of pavement of the present invention is composed of a spraying vehicle for spraying a liquid and a washing vehicle for injecting high-pressure gas, so that the base vehicle becomes relatively small. , It is possible to easily work in urban areas with many curves.

[Brief description of drawings]

FIG. 1 is a side view of a spraying vehicle and a washing vehicle according to a first embodiment of the present invention.

2A is a rear view of the spraying vehicle shown in FIG. 1, and FIG.
It is a rear view of the washing car shown in FIG.

FIG. 3 is an enlarged schematic view of a tip of an air ejection nozzle.

4A is a view in which a cover is provided around the air ejection nozzle of the washing vehicle shown in FIG. 1, FIG. 4B is a rear view of the washing vehicle shown in FIG. 4A, and FIG. FIG.

FIG. 5 is a side view when a plurality of washing cars are provided in the first embodiment.

FIG. 6 is a side view of a spray cleaning vehicle according to a modification of the first embodiment.

7A is a view in which a cover is provided around the spray bar and the air jet nozzle of the spray cleaning vehicle shown in FIG. 6, and FIG.
FIG. 8 is a sectional view of the inside of the cover shown in FIG.

FIG. 8 is a side view of a spray wheel, a washing wheel and a suction wheel according to the second embodiment.

9 is a rear view of the suction wheel shown in FIG.

FIG. 10 is a cross-sectional view of a pollutant liquid tank having a function of separating a pollutant liquid.

FIG. 11 is a side view of a spray wheel and a cleaning / suction wheel according to a modified example 1 of the second embodiment.

FIG. 12 is a rear view of the cleaning suction wheel shown in FIG. 11.

FIG. 13 is an enlarged view of a B portion of the cleaning suction wheel shown in FIG. 11.

14A is a view in which a cover is provided around the air ejection nozzle and the suction port of the cleaning and suction vehicle shown in FIG. 11, FIG. 14B is a rear view of FIG. 14A, and FIG. It is a C section enlarged view of.

15A is a side view of a drainage function recovery vehicle according to a modification 2 of the second embodiment, FIG. 15B is a rear view of FIG. 15A,
(C) It is a B section enlarged view of FIG. 15 (a).

16 (a) is a view in which a cover is provided on the cleaning unit of the drainage function recovery vehicle shown in FIG. 15, (b) is a rear view of FIG. Is.

FIG. 17 is a side view of a working posture of the drainage function recovery vehicle according to the third embodiment.

FIG. 18 is a side view of the forwarding posture of the drainage function recovery vehicle shown in FIG.

FIG. 19 is a side sectional view of the cleaning unit shown in FIG.

FIG. 20 is a front view of the inside of the cleaning unit as seen from the front of the vehicle.

FIG. 21 is an enlarged view of the cleaning unit and its periphery.

22A is a plan view of the rear cleaning unit, and FIG. 22B is a side view of the rear cleaning unit.

FIG. 23 is a diagram showing a sliding mechanism between an upper plate and a lower plate.

FIG. 24 is a rear view of the drainage function recovery vehicle in the working posture.

FIG. 25 is a diagram showing a front side cleaning unit corresponding to FIG. 24.

FIG. 26 is a rear view of the drainage function recovery vehicle in the forwarding posture.

FIG. 27 is a view showing a front side cleaning unit corresponding to FIG. 26.

FIG. 28 is a hydraulic circuit diagram of a device for removing clogging of pavement according to a third embodiment.

FIG. 29 is a side view of a drainage function recovery vehicle according to a third embodiment.

FIG. 30 is an enlarged view of the vicinity of the cleaning unit shown in FIG.

FIG. 31A is a plan view of the rear cleaning unit, and FIG. 31B is a side view of the rear cleaning unit.

FIG. 32 is a hydraulic circuit diagram of a clogging matter removing device according to a first modification of the third embodiment.

FIG. 33 is a side view of the working posture of the drainage function recovery vehicle according to the fourth embodiment.

34 is a rear view of the drainage function recovery vehicle shown in FIG. 33. FIG.

FIG. 35 is a side view of the forwarding posture of the drainage function recovery vehicle shown in FIG. 33.

36 is a rear view of the vehicle with drainage function recovery shown in FIG. 35.

FIG. 37 is an enlarged view around the cleaning unit shown in FIG. 33.

FIG. 38 is a plan view of the cleaning unit in the working posture.

FIG. 39 is a plan view of the cleaning unit in the forwarding posture.

40 (a) is an enlarged view of the swing mechanism of FIG. 37, and FIG. 40 (b) is a plan view of FIG. 40 (a).

41 (a) is an enlarged view of a C portion of FIG. 40 (a), and FIG. 41 (b) is an arrow view of FIG. 41 (a) viewed from an arrow D.

FIG. 42 is an enlarged view of the vicinity of the cleaning unit.

43A is a side view of a working posture of a drainage function recovery vehicle according to a modification of the fourth embodiment, and FIG. 43B is a side view of a forwarding posture.

[Explanation of symbols]

100: Spraying vehicle 200: Washing vehicle 300: Spraying / washing vehicle 400: Suction vehicle 500: Washing / suction vehicle 600, 700, 700A, 800, 800A: Drainage function recovery vehicle 112, 612, 715: Spray bar 211, 513 717: Air ejection nozzles 414, 516, 719: Suction ports 110, 610, 710: Cleaning liquid tank 111: Low pressure pump 210, 713: Compressor 411, 411A, 511, 711: Contamination liquid tank 114, 613, 714: Cleaning liquid pipe 213 , 515, 716: compressed air pipes 413, 517, 718: suction hoses 720, 820: cleaning units 730, 810: base 731: upper plate 732: lower plates 733, 830, 831, 840, 841: slide hydraulic cylinder 740 882: Lifting hydraulic cylinder 83 , 842: Bracket 833,843: upper plate 834,844: lower plate 850: Link 851: Damper 855: upper block 856: the lower block 857: Pin 881,883,884: pin joint

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasuo Hayakawa             Hitachi Construction Machinery Co., Ltd.             Ceremony Company Tsuchiura Factory F-term (reference) 2D026 AC01 AC02 AC03

Claims (30)

[Claims] 1. A pavement mesh characterized by spraying a liquid on the surface of the pavement and spraying a high-pressure gas onto the surface of the pavement sprayed with the liquid to remove clogging in the voids of the pavement. How to remove clogs. 2. A pavement void comprising a spraying vehicle for spraying a liquid on the surface of the pavement, and a washing vehicle which runs behind the spraying vehicle and blows high-pressure gas onto the surface of the pavement sprayed with the liquid. A clogging removal system for pavements that is characterized by removing clogging inside. 3. The system for removing clogging of pavement according to claim 2, wherein a plurality of the washing cars are provided. 4. A spraying device for spraying a liquid on the surface of the pavement, and a high-pressure gas is sprayed on the surface of the pavement sprayed with the liquid,
A device for removing a clogged object in a pavement, comprising: an injection device that separates the clogged object that is clogged in the pavement. 5. The device for removing clogging of pavement according to claim 4, wherein the spraying device comprises a tank for storing the liquid, and a spraying part for spraying the liquid stored in the tank onto the surface of the pavement. And wherein the injection device has a gas compression unit that compresses a gas, and an injection unit that blows the gas compressed by the gas compression unit onto the surface of the pavement. apparatus. 6. The device for removing clogging of pavement according to claim 5, wherein the injection unit is composed of a plurality of injection nozzles arranged in a row in a row at a predetermined interval to inject high-pressure gas, A device for removing clogging of a pavement, characterized in that the gas jetted from the jet nozzle travels straight toward the surface of the pavement. 7. The device for removing clogging of pavement according to claim 5 or 6, wherein the spraying section is arranged at a position higher than the spraying section. Object removal device. 8. The device for removing clogging of a pavement according to claim 5, wherein the spraying device supplies the liquid stored in the tank to the spraying unit at a constant flow rate. A device for removing clogging of pavement, further comprising a pump. 9. A liquid is sprayed on the surface of the pavement, a high-pressure gas is sprayed on the surface of the pavement sprayed with the liquid, and the clogging material and the liquid separated from the inside of the pavement by the liquid and the high-pressure gas. A method for removing a clogged object in a pavement, which comprises removing the clogged object clogged in a void in the pavement by suctioning. 10. A spray car for spraying a liquid on the surface of a pavement, a cleaning car that runs behind the spray car and blows high-pressure gas onto the surface of the pavement sprayed with a liquid, the spray car and the cleaning machine. It consists of a suction wheel that runs behind the vehicle and sucks the liquid and high-pressure gas that have been separated from the inside of the pavement cavity to remove the clogging matter. A pavement clogging removal system characterized by the following. 11. The system for removing clogging of pavement according to claim 10, wherein a plurality of the washing cars are provided. 12. A spraying vehicle for spraying a liquid on the surface of the pavement, a vehicle running behind the spraying vehicle, spraying a high-pressure gas onto the surface of the pavement sprayed with the liquid, and a pavement of the pavement by the liquid and the high-pressure gas. A clogging removal system for a pavement, comprising a clogging material peeled from the void and a cleaning suction wheel for sucking a liquid, and removing the clogging matter clogged in the void of the pavement. 13. The system for removing clogging of a pavement according to claim 12, wherein a plurality of cleaning suction wheels are provided. 14. A spraying device for spraying a liquid on the surface of the pavement, and a high-pressure gas is blown to the surface of the pavement sprayed with the liquid,
It is characterized by having an injection device for peeling the clogged substance clogged in the pavement void, and a suction device for sucking the clogged substance and the liquid cleaved from the pavement void by the liquid and the high-pressure gas. Equipment for removing clogging from pavements. 15. The device for removing clogging of pavement according to claim 14, wherein the spraying device has a first tank for storing a liquid, and the liquid stored in the first tank for the surface of the pavement. And a spraying unit that sprays the gas compressed by the gas compressing unit onto the surface of the pavement. A suction unit for sucking the clogging material and the liquid separated from the space of the pavement, a second tank connected to the suction unit for storing the clogging material and the liquid sucked, and the second tank And a negative pressure generating portion for making the inside of the tank into a negative pressure state. 16. The device for removing clogging of pavement according to claim 15, wherein the injection unit is composed of a plurality of injection nozzles arranged in a row in a row at a predetermined interval to inject high-pressure gas. A device for removing clogging of a pavement, characterized in that the gas jetted from the jet nozzle travels straight toward the surface of the pavement. 17. The device for removing clogged pavement according to claim 15 or 16, wherein the spraying part is arranged at a position higher than the spraying part. Object removal device. 18. The device for removing clogging of a pavement according to claim 15, wherein the spraying device supplies the liquid stored in the tank to the spraying unit at a constant flow rate. A device for removing clogging of pavement, further comprising a pump. 19. The device for removing clogging of pavement according to any one of claims 15 to 18, wherein the second tank separates clogging and liquid collected by the suction unit. A device for removing clogging of a pavement. 20. The device for removing clogging of a pavement according to any one of claims 15 to 19, wherein the negative pressure generating portion also functions as the gas compressing portion, and the suction portion is the negative pressure portion. A device for removing clogging of a pavement, which is connected to a suction side of a pressure generation unit and the injection unit is connected to an exhaust side of the negative pressure generation unit. 21. The device for removing clogging of a pavement according to any one of claims 15 to 20, wherein the tip of the injection unit and the tip of the suction unit are arranged to face each other. A device for removing clogged pavement that features. 22. Claims 5 to 8 and claim 1
A drainage function recovery vehicle for drainage pavement, comprising the device for removing clogging of pavement according to any one of claims 5 to 21. 23. The vehicle for recovering drainage function of drainage pavement according to claim 22, wherein the cleaning unit includes the spraying section and the spraying section, and the cleaning unit includes the spraying section and the suction section. Alternatively, a cleaning unit including the spraying unit, the spraying unit, and the suction unit is installed in the rear of the vehicle, and the cleaning unit is expanded and contracted in the vehicle width direction. A vehicle for recovering drainage function of drainage pavement, characterized by further having a scaling device that is wider than the vehicle width. 24. The drainage function recovery vehicle for drainage pavement according to claim 23, wherein the cleaning unit is composed of a plurality of cleaning units. 25. The vehicle for recovering drainage function of drainage pavement according to claim 24, wherein each of the plurality of cleaning units has a vibration absorbing device for absorbing vibration in a vertical direction of the vehicle, A vehicle for recovering drainage function of drainage pavement, characterized by being configured to be movable in the vertical direction of the vehicle according to the shape of the surface. 26. In the vehicle for recovering drainage function of drainage pavement according to claim 24 or 25, the plurality of cleaning units are arranged in the vehicle front-rear direction according to the shape of the surface of the drainage pavement. A vehicle for recovering drainage function of drainage pavement that further has a rocking device that allows the cleaning unit to rock to the left and right. 27. The drainage function recovery vehicle for drainage pavement according to claim 23, further comprising a switching device for switching between a grounded state and a non-grounded state of the cleaning unit on the drainage pavement surface. A drainage function recovery vehicle for drainage pavement. 28. The vehicle for recovering drainage function of drainage pavement according to claim 22, wherein the spraying section is arranged on a front side of the vehicle, and the injection section, or the injection section and the suction section are arranged on a rear side of the vehicle. Drainage function recovery vehicle for drainage pavement. 29. The system for removing clogging of a pavement according to claim 12 or 13, wherein the scrubbing suction wheel sprays a compressed gas onto a surface of the pavement, and sprays the spraying wheel. A suction unit for sucking the liquid and the clogging material separated from the space of the pavement, a recovery tank connected to the suction unit for storing the suctioned clogging material and liquid, and in the recovery tank And a negative pressure generating unit that supplies compressed gas to the injection unit, and the cleaning unit including the injection unit and the suction unit is installed in the rear portion of the vehicle, and is disposed in the vehicle width direction. A pavement clogging removal system characterized by being configured to be expandable and contractible. 30. The system for removing clogging of pavement according to claim 29, wherein the recovery tank separates the collected clogging matter and liquid. .