JPH09100519A - Pavement clogging remover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a clogged article in a pavement by injecting pressure water to the pavement surface from two directions and floating up the clogging article filled up in a cavity in the pavement and sucking up and collection the clogged article with water. SOLUTION: A high pressure pump is used to send water pipelines 4a and 4b and spray high pressure water at the pavement surface (h) from spray nozzles 7a and 7b. Each of extension lines X1 and X2 intersect with each other below the pavement surface (h) so that the pressure which acts on a clogging article may lose an escape area but for the upper area it may promote the floating up of mixed water comprising the clogging article and water toward the pavement surface (h). A vibrator 50 is vibrated in the vertical direction and provides vibration to the water to be sprayed from the spray nozzle 7a. The mixed water comprising the clogging article and the water is sucked up from a suction opening 9a of a suction duct 9 and a suction opening 10a of a suction duct 10. Therefore, this construction provide a device which promotes the floating up of the clogging article to the pavement surface and excel in a removed power.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for removing clogging of voids in a pavement, particularly dirt and dust clogged in voids of a drainage pavement.

[0002]

2. Description of the Related Art First, the drainage pavement will be described with reference to FIG. 6. The drainage pavement a is a roadbed c, a base course c, a base layer d, and a surface layer f having water-permeable voids e. A pavement formed by sequentially laying it. It is a void e on the surface layer f when it rains.
It has a function of reducing the factors that hinder driving safety such as smoking phenomenon and hydroplaning phenomenon by guiding the rainwater that has flowed into the gutter to a gutter (not shown) for draining. Further, since the void e of the surface layer f has a sound absorbing ability, it also has a function of reducing the noise of the tire when the vehicle is running.
The base layer d of the drainage pavement is not water-permeable to protect the roadbed c.

However, in such a drainage pavement a, the void e in the surface layer f is affected by the running of the vehicle or the wind.
There is an inconvenience that the above-mentioned excellent functions are deteriorated in a relatively short period of time due to clogging with dirt, dust and the like. Therefore, as a device to recover the various excellent functions of drainage pavement,
The one described in US Pat. No. 4,845,801 is disclosed.

As shown in FIG. 7, this device is provided with a plurality of nozzles g arranged along the width direction of the road, and the nozzles g are oblique to the surface h of the drainage pavement a. High-pressure water is jetted, and the jet pressure causes voids e in the surface layer f.
A clogging material such as sand and dust clogged in the above is floated on the pavement surface h, and the mixed water of the floating clogging material and water (sludge water) is sucked and collected by the suction duct i.

[0005]

However, in such a device, since the high-pressure water is sprayed onto the pavement surface h only from one direction, the sprayed high-pressure water covers most of the clogging material as the base layer. It is pushed toward d or the pressure of the high-pressure water diffuses to the surroundings inside the surface layer f. For this reason, the pressure of the high-pressure water cannot be effectively applied to the clogged material in the void e, and the clogged material in the void e cannot be sufficiently removed.

The present invention has been made in order to eliminate such inconvenience, and the clogging of a pavement can be promoted so that the clogging of the clogging to the surface of the pavement can be promoted to improve the removal ability of the clogging. It is an object of the present invention to provide a removal device for

[0007]

In order to achieve such an object, a device for removing clogging of a pavement according to the present invention jets pressure water toward a pavement surface, and the jetting pressure causes the voids of the pavement to be clogged. In a device comprising a spraying means for floating a clogged material on the pavement surface and a suction means for sucking and collecting the clogged material floating on the pavement surface together with water, the spraying means is provided from one direction to the pavement surface. And a first jet nozzle arranged to point to the pavement surface from another direction, and an extension line of the pointing direction which is arranged to face the pavement surface from another direction is lower than the extension line of the first jet nozzle in the pointing direction and the pavement surface. And a vibrating means is disposed at a position facing the pavement surface, and the paving surface is formed from at least one of the first and second jetting nozzles. And wherein the injected water to have so as to impart vibration to.

[0008]

In the present invention, the extension lines of the jet direction of the pressure water jetted from the two directions toward the pavement surface by the first and second jet nozzles intersect below the pavement surface. The pressure acting on the clogged material in the pavement due to the pressure water injected from the other causes the pressure water injected from the other direction to lose the escape area other than above, resulting in the pressure water injected from both directions. Acts to push the clogging material up to the pavement surface, and promotes lifting of the clogging material in the voids.

Further, the vibrating means is arranged at a position facing the pavement surface, and vibration is imparted to the water jetted onto the pavement surface from at least one of the first and second jet nozzles, whereby the pavement is paved. The release of the clogging material in the voids of the above is promoted to promote the lifting of the clogging material to the pavement surface. Then, the clogging material floating on the pavement surface in this manner is suctioned and collected by the suction means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic side view showing a state where a device for removing clogging of a drainage pavement, which is an example of an embodiment of the present invention, is attached to a rear portion of a transportation truck, and FIG. 2 is a partially broken view of the removing device. 2 is a plan view, FIG. 3 is a sectional view taken along the line − in FIG. 2, FIG. 4 is a view seen from the direction of the arrow in FIG. 2, and FIG. 5 is an explanatory schematic view for explaining the removing device. In this embodiment, drainage pavement is taken as an example of pavement. Further, since the structure of the drainage pavement is the same as that described in the conventional example, the same reference numerals as those in the conventional example will be given and described.

First, the structure will be described with reference to FIGS. 1 to 4. In this removing device, a movable arm 2 formed by combining a parallel link mechanism and a cylinder device at the rear portion of the track 1.
An outer box 3 attached via the. The outer box 3 has a rectangular parallelepiped shape that is long in the width direction of the track 1, and has an upper portion and a lower portion opened. Inside the outer case 3, a water pipe 4 extending along the longitudinal direction of the outer case 3 (width direction of the track 1).
a and 4b are arranged apart from each other in the traveling direction of the track 1. The water pipes 4a and 4b are attached to the front and rear side plates 5a and 5b in the traveling direction of the truck 1 via brackets 6a and 6b. As shown in FIGS. 2 and 3, a plurality of injection nozzles 7a (first injection nozzles) for injecting high-pressure water are provided on the lower side of the water pipe 4a attached to the front plate 5a. Direction is evenly spaced, while
Also on the lower side of the water pipe 4b attached to the rear side plate 5b,
A plurality of jet nozzles 7b (second jet nozzles) for jetting high-pressure water are provided facing the jet nozzle 7a at equal intervals in the axial direction of the water pipe 4b.

The jet nozzles 7a and 7b are directed toward the surface h of the drainage pavement a, and the extension lines X ₁ and X _{2 in} the pointing direction of the jet nozzles 7a and 7b are located on the pavement surface h as shown in FIG. It is designed to intersect at the bottom. In addition, each water pipe 7
As shown in FIG. 1, one end of a high-pressure water hose 9c is connected to a and 7b, and the other end of the high-pressure water hose 9c is connected to a high-pressure water pump 33 described later.

Here, in this embodiment, each extension line X
_The angle between the vertical line G passing through the intersection P of ₁ and X ₂ and the extension line X ₁ is θ ₁ , and the angle between the vertical line G and the extension line X ₂ is θ.
_In the case of ₂ , the range of θ ₁ = θ ₂ ≈30 ° to 75 °, the intersection point P ₁ between the extension line X ₁ and the pavement surface h, and the intersection point P between the extension line X ₂ and the pavement surface h. 200 the interval W of the ₂
The length is set to about 500 mm, but is not necessarily limited to these values, and the respective numerical values (the values of θ ₁ , θ ₂ , W) can be adjusted appropriately.

The injection nozzle 7 is provided between the intersection points P ₁ and P _2.
Suction means 8 is arranged to suck and collect the mixed water of the clogging material and water that has floated on the pavement surface h due to the injection of high-pressure water from a and 7b. The suction means 8 includes a first suction duct 9 and a second suction duct 10. The first suction duct 9 is a suction pipe 12 hung toward the pavement surface h at a position spaced from the intersection P ₁ to the rear side plate 5b by a predetermined distance.
Is provided. A plurality of suction tubes 12 are arranged at a predetermined interval in the longitudinal direction of the outer box 3. The lower end of each suction tube 12 has an outer box 3
Is connected to a box body 13 extending along the longitudinal direction of. The lower part of the box body 13 is opened, and both ends in the longitudinal direction reach both end plates 5c and 5d of the outer box 3. The lower opening of the box body 13 serves as a suction port 9 a of the first suction duct 9.

A plurality of the second suction ducts 10 are formed in a fan shape that extends downward, and are arranged along the longitudinal direction of the outer box 3, and the suction ends of the second suction ducts 10 extend along the longitudinal direction of the outer box 3. It has a mouth 10a. The second suction duct 10 is
In FIG. 3, the suction port 10a reaches before the intersection P ₂ after passing through between the suction pipes 12 which are inclined from the upper left side to the lower right side of the suction pipe 12 and adjacent to each other. The upper portions of the suction pipes 12 of the second suction duct 10 and the first suction duct 9 are connected to the main duct 14 and join together on the downstream side. As shown in FIGS. 1 and 3, one end of a suction hose 32 is connected to the main duct 14, and the other end of the suction hose 32 is connected to a vacuum pump 36 via a receiver tank 34a described later. .

In this embodiment, the suction ports 9a and 10a of the suction ducts 9 and 10 are opened 10 to 20 mm above the pavement surface h between the intersection points P ₁ and P ₂ . , But not necessarily limited to this. As shown in FIG. 3, on the back side (at the suction port 9a side) of the tip of the second suction duct 10, the inside of the outer box 3 is extended along the longitudinal direction of the outer box 3 to the suction port 9a side. A partition plate 15 for partitioning the suction port 10a side is fixed by screws. Partition plate 15
Is formed of, for example, a rubber plate material, and the lower end thereof projects from the suction port 10a by an appropriate length and faces the pavement surface h.

The box 13 of the first suction duct 9 and the intersection P
Reference numeral ₁ denotes a vibrating means 50 arranged so as to face the pavement surface h between the box body 13 and the intersection P _1, and extending along the longitudinal direction of the box body 13 on both sides in the width direction of the vibrating means 50. It is covered with the covers 16a and 16b. For convenience of description, first of all, the covers 16a and 16b will be described. In the cover 16a, both end portions in the longitudinal direction thereof are the end plates 5 of the outer box 3.
c and 5d so as to cover both upper sides of the box body 13, and the rear side portion 16c of the truck 1 in the traveling direction of the box body 13 from the upper portion of the box body 13 to the second suction duct 10 The partition plate 15 extends to the tip end side and is provided on the back side of the tip end part.
It is fixed with screws. On the other hand, the front side portion 16d of the cover 16a in the traveling direction of the track 1 extends horizontally from the upper portion of the box body 13 to the vibrating means 50 side, and the tip portion thereof is bent upward at a right angle to form a bent portion 16e. There is.

Both ends of the cover 16b in the longitudinal direction reach both end plates 5c and 5d of the outer box 3 so as to cover the entire upper portion of the intersection P ₁ , and the high pressure water jetted from the jet nozzle 7a. An upper plate 17 extending parallel to the jetting direction of the high-pressure water at an upper position, a lower plate 18 extending parallel to the jetting direction of the high-pressure water at a lower position of the high-pressure water, an upper plate 17, and The end portions of the lower plate 18 on the injection nozzle 7a side are connected to each other by the injection nozzle 7a.
It is formed in a substantially box shape by the connecting plate 19 which is connected in front of a. The lower end of the upper plate 17 extends horizontally toward the vibrating means 50, and its tip is bent upward at a right angle to form a bent portion 16f. Further, the connecting plate 19 has a high pressure water jetted from the jet nozzle 7a. The passage holes 20 through which the holes pass are formed corresponding to the number of the injection nozzles 7a.

At the lower end of the lower plate 18 of the cover 16b, as shown in FIG.
As shown in, a rubber plate-shaped sealing member 20a for sealing between the lower end of the lower plate 18 and the pavement surface h is attached by screwing or the like along the longitudinal direction of the lower plate 18.
The lower end of the sealing member 20a is projected from the lower plate 18 by an appropriate length and faces the paving surface h. Vibrating means 5
A plurality of 0s are provided in the longitudinal direction of the outer box 3 and include a vibrating body 51 slidably arranged in the vertical direction between the bent portion 16e of the cover 16a and the bent portion 16f of the cover 16b. The vibrating body 51 has a rectangular parallelepiped shape in which the upper vibrating portion 52a and the lower vibrating portion 52b, which are vertically divided into two, are integrally coupled by a bolt 53 and which is long in the longitudinal direction of the outer box 3. Flange-shaped seal members 54 are attached along the longitudinal direction to the lower portions on both sides in the width direction of the upper vibrating portion 52a and the upper portions on both sides in the width direction of the lower vibrating portion 52b, respectively. The seal member 54 of the upper vibrating portion 52a and the seal member 54 of the lower vibrating portion 52b are overlapped with each other,
The bent portions 16e and the bent portions 16f described above are provided on both ends thereof.
And abutting against and are slidable in the vertical direction. As a result, both sides of the vibrating body 51 and the bent portions 16e, 1
The space between 6f is sealed.

A top plate 55 is attached to the upper surface of the upper vibrating portion 52a, and through holes 56 are formed in the four corners of the top plate 55, respectively. Guide rods 57 are provided on the inner upper surface of the bent portion 16e of the cover 16a and the inner upper surface of the bent portion 16f of the cover 16b so as to correspond to the number of the through holes 56. After the compression coil spring 58 is externally inserted to the guide rod 57, the through hole 56 of the top plate 55 is externally inserted, so that the vibrating body 51 can be vibrated in the vertical direction while being biased upward. The vibration is applied by a vibration exciter 60 attached to the top surface of the top plate 55 with bolts 59. That is, the vibrating body 51 is vibrated in the vertical direction as the compression coil spring 58 expands and contracts due to the vibration generated by the rotational driving of the eccentric shaft (not shown) in the vibrator 60.

The vibrating means 50 having such a structure applies vibration to the water that is jetted from the jet nozzle 7a to the pavement surface h and enters between the lower surface of the lower vibrating portion 52b and the pavement surface h, so that the space of the pavement is paved. Promotes the release of clogging inside. The suction port 10a of the second suction duct 10 and the intersection point P ₂
Is covered by a cover 21 extending along the longitudinal direction of the outer box 3.

The cover 21, end plates 5c of the outer box 3 is both longitudinal end portions thereof, and reaches 5d, after extending so as to cover the intersection P ₂ from the front side of the distal end portion of the second suction duct 10 An upper plate 22 extending parallel to the jetting direction of the high-pressure water at a position above the high-pressure water jetted from the jet nozzle 7b,
The lower plate 23 extending in parallel to the jetting direction of the high-pressure water at a position below the high-pressure water, and the jet nozzle 7 of the upper plate 22 and the lower plate 23.
It is formed in a substantially box shape by a connecting plate 24 connecting the end portions on the b side with each other in front of the jet nozzle 7b. Connecting plate 2
4, through holes 25 through which the high-pressure water jetted from the jet nozzles 7b passes are formed corresponding to the number of the jet nozzles 7b.

At the lower end of the lower plate 23 of the cover 21, as shown in FIG. 3, a rubber plate-shaped sealing member 25a for sealing between the lower end of the lower plate 23 and the pavement surface h is provided in the longitudinal direction of the lower plate 23. It is attached by screwing along. The seal member 25a has a lower end protruding from the lower plate 23 shorter than the above-mentioned seal member 20a to form a gap larger than the seal member 20a side with the pavement surface h.
As a result, the amount of air flowing into the substantially closed space T ₂ described later is made larger than that in the substantially closed space T ₁ .

At the lower portions of both end walls 5c, 5d of the outer casing 3, there are rubber plate-like sealing members 26 for sealing between the lower portions of both end walls 5c, 5d and the pavement surface h from the lower portions of both end walls 5c, 5d. It is attached by screws etc. in a protruding state. The intersection P ₁ and the suction port 9a of the first suction duct 9 are arranged in the substantially sealed space T ₁ by the seal member 26, the seal member 20a, the covers 16a and 16b, the vibrating means 50, and the partition plate 15, and the seal member 26 , The seal member 25a, the cover 21, and the partition plate 15 make the intersection point P ₂
The suction port 10a of the second suction duct 10 is arranged in the substantially closed space T ₂ .

As shown in FIG. 3, the lower plate 18 of the cover 16 is
On the outer surface side of the outer casing 3, a front traveling roll 27 whose outer peripheral portion is covered with an elastic material 27a such as rubber extends along the longitudinal direction of the outer box 3. As shown in FIGS. 2 and 3, the front traveling roll 27 is arranged with the roll surface as close as possible to the outer surface of the lower plate 18, and both end plates 5c, 5c of the outer box 3 are provided.
Both end surfaces in the axial direction are arranged as close as possible to 5d. Both end shafts 27b of the front traveling roll 27 are attached to the outer box 3
It is rotatably supported by bearings 28 on both end plates 5c and 5d. As shown in FIG. 2, the bearing 28 is fixed to both end plates 5c and 5d of the outer box 3 by bolts 28a and the like.

As described above, by disposing the roll surface of the front traveling roll 27 close to the outer surface of the lower plate 18,
Even if the gap between the pavement surface h and the pavement surface h increases due to wear of the seal member 20a, the amount of air intruding from the gap is suppressed to maintain the airtightness of the substantially closed space T ₁ . Further, by forming the roll surface with the elastic material 27a, when traveling on the uneven pavement surface h, the roll surface does not follow the unevenness and a gap is not generated between the pavement surface h and the roll surface. As a result, air is prevented from inadvertently intruding into the substantially closed space T ₁ from between the roll surface and the paving surface h, and the above-mentioned degree of sealing is not affected. In this embodiment, the front traveling roll 27
A gap is formed between the roll surface of the lower plate 18 and the outer surface of the lower plate 18, but if the front running roll 27 can rotate, the roll surface of the running roll 27 is placed in contact with the outer surface of the lower plate 18. You may.

On the outer surface side of the lower plate 23 of the cover 21, a rear running roll 29 whose outer peripheral portion is covered with an elastic material 29a such as rubber extends along the longitudinal direction of the outer box 3. The rear traveling roll 29 is arranged so as to be able to move toward and away from the outer surface of the lower plate 23 in a state where the roll surface is exposed to the outer surface, and the rear traveling roll 29 is axially attached to both end walls 5c and 5d of the outer box 3. Both end faces are arranged as close as possible. Both end shafts 29b of the rear traveling roll 29 are attached to both end walls 5c and 5d of the outer box 3.
It is rotatably supported by the bearing 30. The bearing 30 is fixed to both end plates 5c and 5d of the outer box 3 with bolts 30a and the like.

Here, the bolt 3 formed on the bearing 30
As shown in FIG. 4, the bolt hole 31 of
Is a long hole in the advancing direction, so that the roll surface of the rear traveling roll 29 can move toward and away from the outer surface of the lower plate 23. In this way, by moving the roll surface of the rear-side traveling roll 29 toward and away from the outer surface of the lower plate 23, the clearance between the roll surface and the outer surface of the lower plate 23 is adjusted, and the above-mentioned clearance is provided from the clearance. negative圧度and second wind speed of the suction duct 10 through the gap to control the amount of air flowing into the substantially sealed space T ₂ in the spatial T ₂ of the between the sealing member 25a and the pavement surface h ( (See below)
It is possible to adjust. The front traveling roll 27 also has a structure in which the roll surface can be moved toward and away from the outer surface of the lower plate 18, and the amount of air flowing into the substantially closed space T ₁ is controlled to control the space T ₁ . The negative pressure level and the wind speed in the first suction duct 9 may be adjusted.

Further, by forming the roll surface with the elastic material 29a, when traveling on the uneven pavement surface h, the roll surface follows the unevenness and a gap is generated between the pavement surface h and the roll surface. Therefore, air is prevented from inadvertently intruding into the substantially closed space T ₂ from between the pavement surface h and the roll surface, and the adjusted negative pressure level of the substantially closed space T ₂ and The wind speed in the second suction duct 10 is not affected.

As shown in FIGS. 1 and 5, a receiver tank 34a, a water tank 34, and an engine 35 are sequentially arranged side by side on the carrier 1a of the transport truck 1 from the rear to the front. A vacuum pump 36 and a vacuum pump hydraulic motor 37 for driving the vacuum pump 36 are attached to an upper portion of the receiver tank 34a. The other end of the suction hose 32 described above is connected to the receiver tank 34a.

A regeneration water pump 38 and a high-pressure water pump 33 are attached to both sides of the lower portion of the water tank 34.
A hydraulic motor 40 for the reclaimed water pump that drives the pump 38 is attached to the reclaimed water pump 38, and a filter 38a is interposed between the pump 38 and the receiver tank 34a. A high-pressure water pump hydraulic motor 41 for driving the high-pressure water pump 33 is attached to the high-pressure water pump 33, and the other end of the high-pressure water hose 9c described above is connected to the high-pressure water pump 33. Water tank 34
Water is supplied from the water truck 42 through the water supply pipe 43.

A vacuum pump hydraulic pump 44 for supplying hydraulic oil to the vacuum pump hydraulic motor 37 by power transmission from the engine 35, and the engine 35.
A hydraulic pump for water pump 40 and a hydraulic pump for water pump 45 for supplying hydraulic oil to the hydraulic motor for pump for regeneration water 40 and the hydraulic motor for high-pressure water pump 41, respectively, are attached by power transmission from 5. A hydraulic control valve 46 that controls the supply of hydraulic oil is interposed between the water pump hydraulic pump 45 and the reclaimed water pump hydraulic motor 40 and the high-pressure water pump hydraulic motor 41.

Next, the operation of the removing device will be described.
As shown in FIG. 1, when the engine 35 is driven while the removal device is connected to the rear portion of the transportation truck 1 and the road of the drainage pavement a is towed, the power of the engine 35 is the hydraulic pump 45 for the water pump, The high-pressure water pump 33 is transmitted to the high-pressure water pump 33 via the high-pressure water pump hydraulic motor 41.
Sends the water in the water tank 34 to the water pipes 4a and 4b through the high-pressure water hose 9c. Thereby, the injection nozzle 7
a, 7b to high-pressure water (in this embodiment, the injection pressure is set to 5
It is set to 0 to 60 kg / cm ² . ) Is sprayed toward the pavement surface h. The high-pressure water sprayed from the spray nozzles 7a and 7b is sprayed on the pavement surface h through the passage holes 20 and 25 of the covers 16 and 21.

At this time, the power of the engine 35 is transmitted from the vacuum pump hydraulic pump 44 to the vacuum pump 36 via the vacuum pump hydraulic motor 37 to drive the vacuum pump 36, and the first and second pumps are driven. A suction force is applied to each of the suction ports 9a and 10a of the suction ducts 9 and 10. By the suction force, outside air is sucked into the substantially closed spaces T ₁ and T ₂ from the passage holes 20 and 25 of the covers 16 and 21, respectively,
An air flow A is formed along the high-pressure water jetted from the jet nozzles 7a and 7b. As a result, a kind of curtain film is formed along the high-pressure water and the scattering of the high-pressure water around the high-pressure water is suppressed. As a result, the high-pressure water is sprayed onto the pavement surface h in a state where the impact force is maintained.

Here, the respective extension lines X ₁ and X ₂ of the directing directions of the injection nozzles 7a and 7b are arranged so as to intersect below the pavement surface h, and the base layer d of the drainage pavement a is not crossed. Since it is water-permeable, the pressure acting on the clogging material in the void e of the drainage pavement a by the high-pressure water jetted from the jet nozzle 7a (or the jet nozzle 7b) is the jet nozzle 7b (or the jet nozzle 7a). Due to the pressure of the high-pressure water jetted from, the escape areas other than above are lost, and as a result, the pressure of the high-pressure water jetted from the jet nozzles 7a, 7b is changed to the void e.
Acts to push up the clogging of the above to the pavement surface h,
As a result, floating of the mixed water of the clogging material and water to the pavement surface h is promoted.

The vibrating body 51 of the vibrating means 50 is also turned on by a switch operation (not shown) to vibrate the vibrating body 50 in the vertical direction.
The water jetted from a to the pavement surface h and entering between the lower surface of the lower vibrating portion 52b of the vibrating body 51 and the pavement surface h is imparted with vibration, and as a result, the release of clogging in the pavement voids occurs. As a result, the lifting of the clogging on the pavement surface h due to the above-mentioned pushing-up action in the substantially closed space T ₁ is promoted.

Then, the pavement surface h facing the substantially closed space T ₁
The mixed water of the clogging material and the water that has floated to the inside is sucked from the suction port 9a of the first suction duct 9, and the substantially closed space T ₂
The mixed water of the clogging material floating on the pavement surface h and the water is sucked from the suction port 10 a of the second suction duct 10. The mixed water sucked by the suction ducts 9 and 10 is collected in the receiver tank 34a via the main duct 14 and the suction hose 32.

At this time, the first and second suction ducts 9, 1
0 of the suction ports 9a and 10a are substantially closed spaces T ₁ ,
Since the spaces T ₁ and T ₂ are placed at T ₂ , the spaces T ₁ and T ₂ are brought into a negative pressure state by the suction action of the suction ducts 9 and 10, whereby the above-mentioned pushing-up action and the space in the pavement by the vibrating means 50 are generated. In combination with the action of promoting the release of the clogging material, the floating of the mixed water of the clogging material and water in the void e to the pavement surface h is further promoted.

Further, by adjusting the clearance between the roll surface of the rear traveling roll 29 and the lower plate 23 of the cover 21, the clearance is passed through the clearance between the seal member 25a and the paving surface h. and the substantially closed space T ₂ causes air to flow, since more than substantially sealed space T ₁ the amount of air flowing into the symbolic closed space T _2, negative圧度is substantially sealed space T of substantially closed space T ₂ Although slightly lower than that of ₁ , the suction port 1 of the second suction duct 10 arranged in the substantially closed space T ₂
A large amount of air flows into the second suction duct 10 from 0a to increase the wind speed in the suction duct 10, and the first and second suction ducts 9 and 10 are connected to the main duct 14
Since the merging is carried out at, the wind speed after merging becomes faster, which makes it possible to effectively carry and remove the mixed water of clogging material such as earth and sand and dust floating on the pavement surface h and water.

The mixed water of the clogging material and water sucked and collected in the receiver tank 34a is filtered from the receiver tank 34a through the filter 38a by the drive of the reclaimed water pump 38, and then is supplied to the water tank 34 again. Used. The regeneration water pump 38 is driven by the power of the engine 35 being transmitted from the water pump hydraulic pump 45 via the regeneration water pump hydraulic motor 40. The drive of the reclaimed water pump 38 is controlled by the hydraulic control valve 46 according to the detection value of a water level sensor (not shown) provided in the receiver tank 34a or the water tank 34.

In the above embodiment, the case where the vibrating means 50 is arranged only on the substantially closed space P ₁ side is taken as an example.
The present invention is not limited to this, and the vibrating means 50 may be arranged also on the substantially enclosed space P ₂ side. Further, in the above-described embodiment, the case where the vibrating body 51 of the vibrating means 50 is vibrated in the vertical direction is taken as an example, but the present invention is not necessarily limited to this. Surface h
As long as it is possible to give vibration to the water that has entered in between, it may be made to vibrate horizontally or diagonally.

Further, in the above-mentioned embodiment, the case where the removing device of the present invention is applied to drainage pavement is taken as an example, but it is not necessarily limited to this, and the device of the present invention is also applicable to water-permeable pavement. You may apply.

[0043]

As is apparent from the above description, according to the present invention, the pressure of the pressure water injected from both directions is effectively applied to the clogging matter clogged in the void of the pavement. Removal of the clogging of the pavement is promoted because the lifting of the clogging in the pavement gap is promoted by the vibrating means to promote the lifting of the clogging to the pavement surface by vibrating means. It is possible to obtain the effect of being able to provide a device with excellent capability.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a state where a device for removing clogging of drainage pavement, which is an example of an embodiment of the present invention, is attached to a rear portion of a vehicle.

FIG. 2 is a plan view in which a part of the removing device is cut away.

FIG. 3 is a sectional view taken along line − in FIG. 2;

FIG. 4 is a view as seen from the direction of the arrow in FIG.

FIG. 5 is an explanatory schematic diagram for explaining the removing device.

FIG. 6 is a schematic cross-sectional view for explaining drainage pavement.

FIG. 7 is an explanatory schematic diagram for explaining a conventional removing device.

[Explanation of symbols]

a ... drainage pavement h ... pavement surface e ... gap X ₁ ... first injection nozzles pointing direction of the extension line X ₂ ... second injection nozzle oriented direction of extension 7a ... first injection nozzle 7b ... second 2 injection nozzle 8 ... suction means 50 ... vibration means

Claims (1)

[Claims] 1. A jetting means for jetting pressured water toward a pavement surface to lift the clogging matter clogged in the voids of the pavement to the pavement surface by the jetting pressure, and the clogging matter floating on the pavement surface with water. And a suction means for sucking and collecting the spraying means, wherein the spraying means is arranged so as to face the pavement surface from one direction and the first spray nozzle is arranged to face the pavement surface from another direction. The extension line in the directing direction is composed of the extension line in the directing direction of the first injection nozzle and a second injection nozzle that is made to intersect below the pavement surface, and vibrates at a position facing the pavement surface. Means for arranging means for applying vibration to water sprayed on the pavement surface from at least one of the first and second spray nozzles.