JPH0988027A - Removing device of clogging materials in pavings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the removing capacity of clogging materials in clearances of draining pavings. SOLUTION: When the first middle diameter pipe 41 of a suction duct 8 is shifted upward, the valve body 47 is pressed down and positioned on the valve seat 45 to close the suction passage 49. When the first middle diameter pipe 41 is raised in the closed sate, clogging materials which have floated on the surface (h) of pavings by high pressure jet water are sucked from the suction opening 8a of the suction duct 8 together with water and at the same time, the clogging materials in the clearances of the pavings are sucked up to the paving surface (h) to acelerate the floating motion of the clogging materials. To the contrary, when the first middle diameter pipe 41 is lowered the valve body is pushed upward and separated from the valve seat 45 and the suction passage 49 is opened. When the pipe 41 is lowered in the opened state, the clogging materials which have floated up to the paving surface (h) are sucked and collected together with water.

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. 7. The drainage pavement a is a roadbed b, 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. When rainwater flows into the void e of the surface layer f and guides it to a gutter (not shown) for drainage, it causes a factor that impedes running safety such as a smoking phenomenon or a hydroplaning phenomenon. Has a function to reduce.
Further, since the void e of the surface layer f has a sound absorbing ability, it also has a function of reducing tire noise when the vehicle is running.
The base layer d of the drainage pavement is not water-permeable to protect the roadbed c.

In such a drainage pavement a, however, the voids e of the surface layer f are clogged with earth and sand or dust due to the influence of vehicle traveling, wind, etc., and the above-mentioned excellent functions are degraded in a relatively short period of time. There is an inconvenience. 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. 8, 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.
Clogs such as dirt and sand that are clogged in the surface are lifted up on the pavement surface h to be removed.

[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 provides a device for removing clogging of a pavement capable of improving the ability to remove the clogging of a clogged pavement. With the goal.

[0007]

In order to achieve such an object, the apparatus for removing clogging of a pavement according to the present invention sprays pressured water on the surface of the pavement, and the space of the pavement is clogged by this spraying pressure. For a pavement that includes an injection unit that raises a clogging material to the pavement surface, and a suction duct that is arranged with a suction port facing the pavement surface and that suctions and collects the clogging material that has floated on the pavement surface together with water. In a device for removing clogging, a valve seat is provided in a suction passage of the suction duct so as to be able to move toward and away from the suction port, and to the valve seat when the valve seat moves away from the suction port. A valve element is provided which is seated to close the suction passage, and is separated from the valve seat to open the suction passage when the valve seat moves toward the suction port.

[0008]

In the present invention, the clogging material in the voids of the pavement is floated on the pavement surface by the injection of the pressure water onto the pavement surface by the injection means. At this time, the valve seat moves away from the suction port in the suction passage of the suction duct to close the suction passage, so that the clogging material floating on the pavement surface is sucked up together with the water, and at the same time, the clogging material in the pavement cavity is removed. It sucks up and promotes liberation, which promotes lifting of clogging on the pavement surface. On the other hand, the valve seat moves closer to the suction port to open the suction passage, so that the clogging material floating on the pavement surface and water are suctioned and collected.

[0009]

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. FIG. 3 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 arrow direction in FIG. 2, and FIGS. 5 and 6 are explanatory views for explaining the operation of the removing device. In this embodiment, drainage pavement is taken as an example of pavement. Since the structure of the drainage pavement is the same as that described in the conventional example, the same parts as those in the conventional example will be described with the same reference numerals.

First, the structure will be described with reference to FIGS. 1 to 4. In this removing device, a movable arm 2 which is a combination of a parallel link mechanism and a cylinder device is provided at a rear portion of a 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, 4b are fixed to the front and rear side plates 5a, 5b in the traveling direction of the truck 1 via brackets 6a, 6b. As shown in FIGS. 2 and 3, the water pipe 4
A plurality of jet nozzles 7 for jetting high-pressure water are provided on the lower side of a.
a are provided at equal intervals in the axial direction of the water pipe 4a, while a plurality of injection nozzles 7b for injecting high-pressure water are provided on the lower side of the water pipe 4b so as to face the injection nozzles 7a. Are provided at equal intervals in the axial direction.

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 directing 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 14 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.

An injection nozzle 7 is provided between the intersection points P ₁ and P _2.
A suction duct 8 is arranged to suck and collect the mixed water of the clogging material and the water floating on the pavement surface h by the high-pressure water jet from a and 7b. The suction duct 8 has a vertical line G
A plurality of suction pipes 9 hung along the longitudinal direction of the outer box 3 and arranged at a predetermined interval in the longitudinal direction of the outer box 3, and a box connected to the lower ends of the respective suction pipes 9 and extending along the longitudinal direction of the outer box 3. And a body 10.

For convenience of explanation, first of all, the box body 10 will be described. The box body 10 is fixed to the outer box 3 by opening the lower part and reaching both end plates 5c and 5d of the outer box 3 at both ends in the longitudinal direction. Has been done. The lower opening of the box body 10 serves as a suction port 8 a of the suction duct 8. In this embodiment, although is opened from the pavement surface h to 10~20mm upper position between the intersection points P ₁ and P ₂ the suction port 8a of the suction duct 8 may not be limited thereto.

At the lower portions of both side walls in the width direction of the box body 10, at positions above the intersections P ₁ and P _{2 in} order to prevent the high pressure water jetted from the jet nozzles 7a, 7b to the pavement surface h from scattering. A guide plate 11 extending along the longitudinal direction of the outer box 3.
a and 11b are fixed by screwing or the like. Both ends of each of the guide plates 11a and 11b in the longitudinal direction reach the end plates 5c and 5d of the outer box 3.

The suction pipe 9 is provided with a large diameter pipe 40 connected to the upper surface of the box body 10, and a first medium diameter pipe 41 is reciprocally movable in the axial direction at the upper end of the large diameter pipe 40. Has been inserted into. As shown in FIG. 5, an O-ring 42 is mounted on the outer peripheral portion of the lower end of the first medium-diameter pipe 41, whereby an O-ring 42 is provided between the large-diameter pipe 40 and the insertion portion of the first medium-diameter pipe 41. Is sealed. An upper end portion of the first medium diameter pipe 41 is connected to a second medium diameter pipe 44 fixed to the outer case 3 or the like via a bellows 43. The expansion and contraction of the bellows 43 allows the first medium-diameter pipe 41 to reciprocate in the axial direction. In addition, the upper end of the second medium diameter pipe 44 is connected to one end of the suction hose 17 after merging on the way, and the other end of the suction hose 17 is connected to the vacuum pump 26 via a receiver tank 18 described later. Has been done.

As shown in FIGS. 3 and 5, an annular valve seat 45 is formed on the inner peripheral surface of the first medium diameter pipe 41, and a circular seat is formed on an upper seat surface 46 of the valve seat 45. The valve body 47 is attached so as to be vertically rotatable. And FIG.
As shown in (a), when the first medium diameter pipe 41 moves upward (in a direction away from the suction port 8a), the suction passage 49 on the lower side of the valve body 47 (suction port 8a side) is on the upper side. (Bellows 43
The pressure is lower than that of the suction passage 49 on the side) and the valve body 47 is pressed downward, whereby the valve body 47 rotates downward and seats on the valve seat 45, and the suction passage 49 is closed.

On the contrary, as shown in FIG. 5B, when the first medium diameter pipe 41 moves downward (in the direction of approaching the suction port 8a), the lower side of the valve body 47 (suction). The suction passage 49 on the mouth 8a side is on the upper side (the bellows 43 side).
The pressure becomes higher and the valve body 47 is pressed upward, whereby the valve body 47 rotates upward and separates from the valve seat 45.
The suction passage 49 is designed to be opened.

2 and 3, reference numeral 50 is a crank mechanism for vertically reciprocating the first medium diameter pipe 41. The crank mechanism 50 is above the bellows 43 and along the longitudinal direction of the outer case 3. A crankshaft 51 extending is provided. The crankshaft 51 has a bracket 52 at one end on the end wall 5c of the outer box 3.
Motor shaft 54 of drive motor 53 mounted via
To the end wall 5d of the outer case 3 via a bearing (not shown) so that the other end is rotatably supported. The crank arm 56 is attached to the crankshaft 51 by the outer case 3
Is provided between the first medium-diameter pipes 41, 41 adjacent to each other in the longitudinal direction, and one end of a connecting rod 57 is rotatably connected to the crank arm 56 via a crank pin 58. Has been done. As shown in FIG. 4, the other end of the connecting rod 57 is rotated via a turning pin 60 to a substantially central portion of a connecting pipe 59 spanned between the first medium-diameter pipes 41, 41 adjacent to each other. It is movably connected. The crankshaft 51 is rotated by the drive of the drive motor 53, and the rotational movement is converted into the linear reciprocating movement of the first medium diameter pipe 41.

As shown in FIGS. 2 and 3, casters 21 and 22 are attached to both side plates 5a and 5b of the outer casing 3 so as to be spaced apart from each other in the longitudinal direction of the outer casing 3.
In addition, a seal rubber 23 that seals the lower peripheral edge of the outer box 3 is attached to the lower part of the outer box 3 along the entire circumference of the outer box 3 in a state of protruding downward from the lower part of the outer box 3. ing.

As shown in FIGS. 1 and 6, a receiver tank 18, a water tank 24, and an engine 25 are sequentially arranged side by side on the bed 1a of the transport truck 1 from the rear to the front. A vacuum pump 26 and a vacuum pump hydraulic motor 27 for driving the vacuum pump 26 are attached to an upper portion of the receiver tank 18. Moreover, the other end of the suction hose 17 described above is connected to the receiver tank 18.

A regeneration water pump 28 and a high-pressure water pump 14 are attached to both sides of the lower portion of the water tank 24.
A hydraulic motor 30 for the reclaimed water pump that drives the pump 28 is attached to the reclaimed water pump 28, and a filter 28 a is interposed between the pump 28 and the receiver tank 21. A high-pressure water pump hydraulic motor 31 for driving the high-pressure water pump 14 is attached to the high-pressure water pump 14, and the high-pressure water pump 14 is connected to the other end of the high-pressure water hose 9c described above. Water is supplied to the water tank 24 from a water truck 32 through a water supply pipe 33.

A vacuum pump hydraulic pump 34 for supplying hydraulic oil to the vacuum pump hydraulic motor 27 by power transmission from the engine 25, and the engine 2
A hydraulic pump for water pump 30 and a hydraulic pump for water pump 35, which supply hydraulic oil to the hydraulic motor 30 for reclaimed water pump and the hydraulic motor 31 for high-pressure water pump, respectively, are attached by power transmission from 5. A hydraulic control valve 36 that controls the supply of hydraulic oil is interposed between the water pump hydraulic pump 35 and the reclaimed water pump hydraulic motor 30 and the high-pressure water pump hydraulic motor 31.

Next, the operation of the removing device will be described.
As shown in FIG. 1, when the engine 25 is driven while the removal device is connected to the rear part of the transportation truck 1 and the road of the drainage pavement a is being towed, the power of the engine 25 is the hydraulic pump 35 for the water pump, The high pressure water pump 14 is transmitted to the high pressure water pump 14 via the high pressure water pump hydraulic motor 31.
Sends the water in the water tank 24 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.

Here, the respective extension lines X ₁ and X _{2 in} the directivity direction of the injection nozzles 7a and 7b are made to intersect below the pavement surface h, and the base layer d of the drainage pavement a is not intersected. 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.
And effectively pushes the clogging material up 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.

At this time, the drive motor 53 is turned on by the operation of a switch (not shown) to drive the crank mechanism 50, and the first medium diameter pipe 41 reciprocates in the vertical direction. Then, as shown in FIG. 5A, the suction duct 8
When the first medium diameter pipe 41 of the
Is pressed downward to sit on the valve seat 45, close the suction passage 49, and raise the first medium-diameter pipe 41 in the closed state, so that the clogging material floating on the pavement surface h is removed together with water. At the same time as sucking from the suction port 8a of the suction duct 8, the clogging in the pavement gap is sucked up to the pavement surface h to promote the liberation, and promotes the lifting of the clogging matter to the pavement surface h by the above-mentioned high-pressure water injection. To do.

On the contrary, as shown in FIG. 5B, when the first medium diameter pipe 41 moves downward, the valve body 4
7 is pushed upward to separate from the valve seat 45 to open the suction passage 49, and in the opened state, the first medium diameter pipe 4
When 1 is lowered, the clogging material floating on the pavement surface h is sucked and collected together with water. The suctioned mixed water is collected in the receiver tank 18 via the suction hose 17. The suction force is applied to the suction port 8a by the power of the engine 25 being transmitted from the vacuum pump hydraulic pump 34 to the vacuum pump 26 via the vacuum pump hydraulic motor 27 to drive the vacuum pump 26. It

The mixed water of the clogging material and water sucked and collected in the receiver tank 18 is supplied from the receiver tank 18 through the filter 28a to the water tank 24 after being filtered by the drive of the regeneration water pump 28. Used. The regeneration water pump 28 is driven by the power of the engine 25 being transmitted from the water pump hydraulic pump 35 via the regeneration water pump hydraulic motor 30. Further, the drive of the pump 28 for reclaimed water is performed by the receiver tank 1
8 or a hydraulic control valve 36 according to a detection value of a water level sensor (not shown) provided in the water tank 24.

In the above embodiment, the case where the high-pressure water is jetted from both directions toward the pavement surface h is taken as an example.
The present invention is not limited to this, and the high-pressure water may be jetted toward the pavement surface h from only one direction. Further, in the above-described embodiment, the crank mechanism 50 is taken as an example of the means for reciprocating the first medium diameter pipe 41, but the invention is not limited to this, and the first medium diameter pipe may be formed by a cam mechanism or a cylinder device. Four
1 may be moved back and forth.

Further, the shape and type of valve for opening and closing the suction passage 49 are not particularly limited, and the valve seat 45 can be used.
The suction passage 49 can be appropriately changed as long as the suction passage 49 can be opened and closed according to the reciprocating movement of the. Further, in the above embodiment,
The case where the removing device of the present invention is applied to drainage pavement is taken as an example, but the present invention is not limited to this, and the device of the present invention may be applied to water-permeable pavement.

[0031]

As is apparent from the above description, according to the present invention, the valve seat is moved away from the suction port in the suction passage to close the suction passage, thereby ejecting the pressure water onto the pavement surface. The lifted clogging material is sucked up together with water, and at the same time, the clogging material inside the pavement's void is sucked up to promote the release, which promotes lifting of the clogging material to the pavement surface, and the valve seat acts as a suction port. By moving closer to each other and opening the suction passage, the clogging material floating on the pavement surface and water are suctioned and collected, so the ability to remove clogging material clogging the voids in the pavement is greatly improved. The effect that can be obtained is obtained.

[Brief description of 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 seen from the direction of the arrow in FIG.

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

FIG. 6 is an explanatory diagram for explaining the operation of the removing device.

FIG. 7 is a schematic cross-sectional view for explaining drainage pavement.

FIG. 8 is a schematic view for explaining a conventional removing device.

[Explanation of symbols]

 a ... Drainage pavement h ... Pavement surface e ... Void 7a ... First jet nozzle (jetting means) 7b ... Second jet nozzle (jetting means) 8 ... Suction duct 8a ... Suction port 45 ... Valve seat 47 ... Valve body 49 ... Suction passage

Claims (1)

[Claims] 1. A spraying means for spraying pressured water onto a pavement surface to lift a clogging material clogged in a void of the pavement onto the pavement surface by the spraying pressure, and a suction port facing the pavement surface. In a pavement clogging removal device including a suction duct that suctions and collects the clogging material floating on the pavement surface together with water, a suction passage of the suction duct can be moved toward and away from the suction port. A valve seat provided, and when the valve seat moves away from the suction port, the valve seat is seated on the valve seat to close the suction passage, and when the valve seat moves toward the suction port, A device for removing clogging of a pavement, comprising a valve body that is detached to open the suction passage.