JP3712447B2 - Pavement clogging removal device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for removing clogged substances such as earth and sand and dust clogged in a gap in a pavement, for example, a drainage pavement.
[0002]
[Prior art]
First, the drainage pavement will be described with reference to FIG. 6. The drainage pavement a is formed by sequentially laying a surface layer f having a roadbed c, a base layer d, and a gap e capable of passing water on a roadbed b. This is a pavement that has a function of reducing factors that hinder driving safety such as a smoking phenomenon and a hydroplaning phenomenon by draining rainwater that has flowed into the gap e of the surface layer f during raining into a side groove (not shown). Moreover, since the space | gap e of the surface layer f has a sound absorption capability, it also has the function to reduce the noise of the tire at the time of vehicle travel.
[0003]
However, in such drainage pavement a, dirt and dust etc. are clogged in the gap e of the surface layer f due to the vehicle running, wind and the like, and the above-mentioned excellent functions are degraded in a relatively short period of time. There is.
Therefore, in order to recover various functions of the drainage pavement, an apparatus for removing clogged clogged materials while being pulled by a vehicle such as a truck has been proposed.
[0004]
As shown in FIG. 7, this apparatus includes a box-shaped accommodation portion g that extends along the width direction of the vehicle. The lower part of the accommodating part g is opened, and casters i and j that enable traveling during towing are attached to the front and rear wall parts in the traveling direction of the vehicle. The lower peripheral edge of the housing portion g, a rubber plate-shaped sealing member k for sealing between the lower and the pavement surface h of the housing portion g is attached to the entire circumference, thereby accommodating portion g is It is a substantially sealed space.
[0005]
A plurality of injection nozzles m are arranged at equal intervals in the width direction of the vehicle inside the accommodating portion g. High-pressure water is jetted from the nozzle m toward the pavement surface h, and clogging materials such as earth and sand and dust clogged in the gaps e of the surface layer f are lifted on the pavement surface h by this spraying pressure. Water mixed with water (sludge water) is sucked and collected by a suction duct o disposed inside the accommodating portion g so as to face the spray nozzle m.
[0006]
In such a device, the sludge water is sucked and collected by the suction duct o in a substantially sealed space, so that the space is brought into a negative pressure state by the suction action of the suction duct o, whereby the high pressure water is sprayed around the position where the high pressure water is sprayed. The suction recovery efficiency is improved by promoting the lifting of the clogged material in the gap e of the pavement a.
[0007]
[Problems to be solved by the invention]
However, in such apparatus, housing seal member k provided on the lower peripheral edge of the housing portion g to form a substantially closed space in g, in particular around the sidewall p in the traveling direction of the vehicle housing portion g, q lower As a result, a large amount of outside air enters the housing part g and the atmospheric pressure rises, and the sludge is sludged in a relatively short period of time. There is an inconvenience of lowering the water suction and recovery efficiency.
[0008]
Further, since the mounting of the sealing member k in the lower part all around the housing portion g, that the sealing member k when the the housing portion g and the negative pressure state becomes impossible travel adsorption to cause device pavement surface h There is an inconvenience. The present invention has been made to eliminate such inconvenience, and can maintain the negative pressure state in the storage unit well and efficiently perform the suction and recovery of sludge water by the suction duct over a long period of time, An object of the present invention is to provide a pavement clogging removal device that can ensure stable running of the device.
[0009]
[Means for Solving the Problems]
In order to achieve this object, a pavement clogging removal device according to claim 1 is directed to spraying pressure water toward a pavement surface, and the clogging clogged in a pavement gap by the spray pressure is applied to the pavement surface. An injection nozzle that floats on the surface, a suction duct that sucks and collects clogged material that floats on the pavement surface, and the pavement surface that is disposed so as to be able to travel above the pavement surface and that is at least sprayed from the injection nozzle A housing part in which a lower part in which the spraying position and the suction port of the suction duct are arranged on the inner side is opened, and a blocking member that closes between the lower part of both end walls in the width direction of the housing part and the pavement surface; A front running roll that extends along the width direction of the housing portion at the lower portion of the front side wall in the running direction of the housing portion, and is disposed so as to be rotatable with a roll surface approaching the front wall surface; and the housing portion Progress A rear running roll that extends along the width direction of the housing portion at the lower portion of the rear side wall in the direction, and is disposed so as to be rotatable with the roll surface approaching the rear side wall surface. The interior of the housing portion is substantially sealed by a traveling roll and a rear traveling roll.
[0010]
The clogging removal device for pavement according to claim 2 is characterized in that the roll surfaces of the front and rear traveling rolls are formed of an elastic material.
According to a third aspect of the present invention, there is provided a pavement clogging removing device that can adjust a gap between the front and rear traveling rolls and the wall surface.
[0011]
[Action]
According to the first aspect of the present invention, the front and rear traveling rolls are arranged along the width direction of the housing portion at the front and lower portions of the rear side wall of the housing portion, respectively, and the roll surface of each traveling roll approaches the front side and the rear wall surface. By doing so, the space between the lower part of the front and rear side walls of the housing part and the pavement surface is sealed and the running of the apparatus is ensured.
[0012]
In the invention of claim 2, in addition to the invention of claim 1, when the roll surface of the front and rear running rolls is formed of an elastic material, the roll surface becomes uneven when traveling on the uneven pavement surface. Follow up so that there is no gap between the pavement surface and the roll surface.
In the invention of claim 3, in addition to the invention of claim 1 or 2, the degree of the negative pressure in the accommodating portion can be adjusted by making the gap between the front and rear running rolls and the wall surface adjustable. To.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic side view showing a state in which a clogging removal device for drainage pavement, which is an example of an embodiment of the present invention, is attached to a rear portion of a transport truck, and FIG. 2 is a partially broken view of the removal device. FIG. 3 is a sectional view taken along line (3)-(3) in FIG. 2, FIG. 4 is a view seen from the direction of arrow (4) in FIG. 2, and FIG. 5 is an explanatory schematic for explaining the removing device. FIG. 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 are used for description.
[0014]
First, the configuration will be described with reference to FIGS. 1 to 3. This removing device is an outer box ( accommodating) attached to the rear portion of the track 1 via a movable arm 2 formed by combining a parallel link mechanism and a cylinder device. Part ) 3. The outer box 3 has a rectangular parallelepiped shape that is long in the width direction of the track 1, and the lower part is opened. As shown in FIG. 3, the upper plate 4 of the outer box 3 is disposed slightly below the upper end of the outer box 3 and is screwed to the front and rear side walls 5a and 5b in the traveling direction (traveling direction) of the track 1 of the outer box 3. Has been.
[0015]
As shown in FIGS. 2 and 3, the water pipe 6 extends along the longitudinal direction (width direction) of the outer box 3 at the upper part of the outer box 3 on the rear side wall 5 b side. The water conduit 6 is fixed to the side wall 5 b of the outer box 3 via a bracket 7. As shown in FIGS. 2 and 3, a plurality of injection nozzles 8 for injecting high-pressure water are provided at equal intervals in the axial direction of the water pipe 6 at the lower portion of the water pipe 6.
[0016]
The injection nozzle 8 is arranged so that the extension line in the directing direction reaches the surface h of the drainage pavement a while facing the lower left in FIG. As a result, the high-pressure water sprayed from the spray nozzle 8 is sprayed on the pavement surface h, and the clogged material clogged in the gaps f of the surface layer e is raised on the pavement surface h by this spraying pressure. Further, as shown in FIG. 1, one end of a high-pressure water hose 9c is connected to the water pipe 6 and the other end of the high-pressure water hose 9c is connected to a high-pressure water pump 28a described later.
[0017]
A plurality of substantially fan-shaped suction ducts 10 extending downward are arranged on the front side wall 5 a side in the outer box 3 along the longitudinal direction of the outer box 3. The suction duct 10 is fixed to the front side wall 5a via a bracket 12, and is inclined obliquely downward to the right in FIG. 3 and its tip is disposed in front of the high-pressure water spray position S sprayed from the spray nozzle 8. Yes. The suction duct 10 has a suction port 11 extending along the longitudinal direction of the outer box 3 at the tip, and clogged materials such as earth and sand and dust floating on the pavement surface h from the suction port 11 are provided on the pavement surface. The water is sucked and collected together with the water sprayed on h. In this embodiment, the suction port 11 of the suction duct 10 is opened 10 to 20 mm above the pavement surface h. However, the present invention is not limited to this.
[0018]
A partition plate 13 that partitions the inside of the outer box 3 into a front side wall 5a side and a rear side wall 5b side is fixed by screws on the back side (front side wall 5a side) of the front end portion of the suction duct 10. The partition plate 13 is formed of, for example, a rubber plate or the like, and its tip portion protrudes downward from the suction port 11 by an appropriate length and faces the pavement surface h. On the other hand, a guide plate 15 is attached to the front side (rear side wall 5b side) of the front end of the suction duct 10 by screwing or the like to prevent the high pressure water from being scattered around.
[0019]
The guide plate 15 extends in the longitudinal direction of the outer box 3 so as to cover the spraying position S of the high-pressure water, and both ends thereof reach the both end walls 5 c and 5 d in the longitudinal direction of the outer box 3. As shown in FIG. 1, one end of a suction hose 14 is connected to the upper portion of the suction duct 10, and the other end of the suction hose 14 is connected to a vacuum pump 26 via a receiver tank 24a described later. Yes.
[0020]
In the lower part of both end walls 5c, 5d of the outer box 3, a seal rubber (blocking member) 16 that seals between the lower part of both end walls 5c, 5d and the pavement surface h protrudes from the lower part of both end walls 5c, 5d. It is attached with screws. It should be noted that the tip of the seal rubber 16 is ideally in contact with the pavement surface h, but in reality, a slight gap is formed between the seal rubber 16 and the pavement surface h due to wear or the like. Needless to say, the gap between the lower portions of both end walls 5c and 5d and the pavement surface h is not completely sealed.
[0021]
A front traveling roll 17 extends along the longitudinal direction of the outer box 3 on the inner surface side of the lower portion of the front side wall 5 a of the outer box 3. As shown in FIGS. 2 and 3, the front traveling roll 17 is arranged with the roll surface as close as possible to the inner surface of the front side wall 5 a, and both end surfaces on the inner surfaces of the both end walls 5 c and 5 d of the outer box 3. As shown in FIG. 4, both end shafts 17a are rotatably supported by both end walls 5c and 5d of the outer box 3 via bearings 18 as shown in FIG. As shown in FIG. 3, the outer periphery of the front traveling roll 17 is covered with an elastic material 17 b such as rubber.
[0022]
A rear traveling roll 19 extends along the longitudinal direction of the outer box 3 on the inner surface side of the lower part of the rear side wall 5 b of the outer box 3. The rear traveling roll 19 is arranged with the roll surface as close as possible to the inner surface of the rear side wall 5b, and is arranged with both end surfaces as close as possible to the inner surfaces of the both end walls 5c and 5d of the outer box 3. Both end shafts 19a are rotatably supported by both end walls 5c and 5d of the outer box 3 via bearings 18. Further, the outer peripheral portion of the rear traveling roll 19 is also covered with an elastic material 19b such as rubber as shown in FIG. The inside of the outer box 3 is substantially sealed by the seal rubber 16, the front traveling roll 17, and the rear traveling roll 19 described above, so that the high-pressure water spray position S and the suction port 11 of the suction duct 10 are in the substantially sealed space T. Has been placed.
[0023]
Here, the bolt hole 18b of the bolt 18a formed in the bearing 18 is a long hole extending in the traveling direction of the track 1 as shown in FIG. 4, whereby the front and rear traveling rolls 17 and 19 The roll surface is movable toward and away from the inner surfaces of the front and rear side walls 5a and 5b of the outer box 3. Thus, by moving the roll surfaces of the front and rear traveling rolls 17 and 19 closer to and away from the inner surfaces of the front and rear side walls 5a and 5b of the outer box 3, the roll surface and the inner surfaces of the front and rear side walls 5a and 5b are moved. By adjusting the gap interval, the amount of air flowing into the substantially sealed space T from the gap is controlled so that the negative pressure in the space T can be adjusted.
[0024]
In this embodiment, a gap is formed between the roll surfaces of the front and rear traveling rolls 17 and 19 and the inner surfaces of the front and rear side walls 5a and 5b. If possible, the roll surfaces of the traveling rolls 17 and 19 may be arranged in contact with the inner surfaces of the front and rear side walls 5a and 5b.
As shown in FIG. 4, a receiver tank 24 a, a water tank 24, and an engine 25 are sequentially arranged in parallel on the loading platform 1 a of the transport truck 1 from the rear to the front. The other end of the suction hose 14 described above is connected to the receiver tank 24a, and a vacuum pump 26 and a vacuum pump hydraulic motor 27 for driving the vacuum pump 26 are attached to the upper portion of the receiver tank 24a.
[0025]
A reclaimed water pump 28 and a high-pressure water pump 28 a are attached to both lower sides of the water tank 24. The reclaimed water pump 28 is provided with a reclaimed water pump hydraulic motor 30 for driving the pump 28, and a filter 28b is interposed between the pump 28 and the receiver tank 24a. A high pressure water pump hydraulic motor 31 for driving the pump 28a is attached to the high pressure water pump 28a, and the other end of the high pressure water hose 9c is connected to the high pressure water pump 28a. Water is supplied to the water tank 24 from a water supply vehicle 32 through a water supply pipe 33.
[0026]
The engine 25 includes a vacuum pump hydraulic pump 34 that supplies hydraulic oil to the vacuum pump hydraulic motor 27 by power transmission from the engine 25, and a reclaimed water pump hydraulic motor 30 and the like, respectively, by power transmission from the engine 25. A water pump hydraulic pump 35 that supplies hydraulic oil to the high pressure water pump hydraulic motor 31 is attached. A hydraulic control valve 36 for controlling the supply of hydraulic oil is interposed between the water pump hydraulic pump 35, the reclaimed water pump hydraulic motor 30 and the high pressure water pump hydraulic motor 31.
[0027]
Next, the operation of the removing device will be described. As shown in FIGS. 1 and 5, when a removal device is connected to the rear portion of the transport truck 1 and the engine 25 is driven while towing the road of the drainage pavement a, the power of the engine 25 becomes the hydraulic pressure for the water pump. The high pressure water pump 28a is transmitted to the high pressure water pump 28a via the pump 35 and the high pressure water pump hydraulic motor 31, and the water in the water tank 24 is sent to the water pipe 4 via the high pressure water hose 9c. The high pressure water is jetted from the jet nozzle 8. The jetted high-pressure water is sprayed to the spraying position S, and clogged materials such as earth and sand and dust clogged in the gaps e of the drainage pavement a float on the pavement surface h together with water.
[0028]
The mixed water of the clogged substances and the water that has been lifted is sucked from the suction port 11 of the suction duct 10 and collected in the receiver tank 24a via the suction hose 14. The suction force is applied to the suction port 11 when the power of the engine 25 is transmitted from the vacuum pump hydraulic pump 34 to the vacuum pump 26 via the vacuum pump hydraulic motor 27 and the pump 26 is driven. .
[0029]
At this time, the inside of the outer box 3 is substantially sealed by the seal rubber 16, the front traveling roll 17 and the rear traveling roll 19, and the high-pressure water spray position S and the suction port 11 of the suction duct 10 are disposed in the substantially sealed space T. Has been. Accordingly, the suction duct 10 sucks and collects the mixed water of the clogged material and the water floating in the substantially sealed space T, so that the suction action of the suction duct 10 causes the space T to be in a negative pressure state. The lift of clogged material in the gap e of the pavement a around the high-pressure water spray position S is promoted, and the suction and recovery efficiency of the mixed water of the clogged material and water can be greatly improved.
[0030]
Further, the traveling of the removing device is ensured by the front and rear side traveling rolls 17 and 19, and the front and rear side walls 5a are brought closer to the inner surfaces of the front and rear side walls 5a and 5b. Since the space between the lower part of 5b and the pavement surface h is sealed, the amount of outside air invading into the outer box 3 due to wear with the pavement surface h during traveling can be greatly reduced compared to the conventional case. As a result, the negative pressure state in the outer box 3 can be satisfactorily maintained over a long period of time, and the suction and recovery of the mixed water of the clogging material and the water can be efficiently performed over a long period of time. it can.
[0031]
Further, since the space between the lower portions of the front and rear side walls 5a and 5b and the pavement surface h is sealed by the front and rear side running rolls 17 and 19, when the inside of the outer box 3 is in a negative pressure state, it is attached to the lower portions of the front and rear side walls as before. The seal member is not adsorbed on the pavement surface h. As a result, it is possible to ensure stable running of the removing device.
Further, since the roll surfaces of the front and rear running rolls 17 and 19 are formed by the elastic members 17b and 19b, the pavement surface h follows the unevenness when the roll surface travels on the uneven pavement surface h. Can prevent the gap between the roll and the roll surface from occurring, and as a result, it is possible to prevent the outside air from entering the outer box 3 and to stabilize the negative pressure state in the outer box 3. It can be.
[0032]
The clogged water and the mixed water collected in the receiver tank 24a are filtered from the receiver tank 24a through the filter 28b by driving the reclaimed water pump 28, and then supplied to the water tank 24 for reuse. The The regeneration water pump 28 is driven by transmitting the power of the engine 25 from the water pump hydraulic pump 35 via the regeneration water pump hydraulic motor 30. The driving of the reclaimed water pump 28 is controlled by a hydraulic control valve 36 according to a detection value of a receiver level 24a or a water level sensor (not shown) provided in the water tank 24.
[0033]
In the above embodiment, the entire space in the outer box 3 is a negative pressure space. However, it is not always necessary to do so. For example, only the blowing position S of the high pressure water and the vicinity of the suction port 11 of the suction duct 10 are illustrated. The cover is covered with a cover ( accommodating portion ) and a passage hole or the like for high-pressure water sprayed from the spray nozzle 8 is formed in the cover, and seal rubbers 16 are attached to lower portions of both end walls of the cover. A negative pressure space may be formed in a part of the outer case 3 by arranging the roll surfaces of the front and rear traveling rolls 17, 19 close to the wall surface to make the inside of the cover a substantially sealed space. Good.
[0034]
Moreover, in the said embodiment, although the case where the roll surface of the front and rear side traveling rolls 17 and 19 was arranged close to the inner surface of the front and rear walls 5a and 5b of the outer box 3 was taken as an example, instead of this, The roll surfaces of the front and rear traveling rolls 17 and 19 may be disposed close to the outer surfaces of the front and rear walls 5a and 5b.
Furthermore, in the said embodiment, although the case where the removal apparatus of this invention was applied to drainage pavement was taken as an example, it is not necessarily limited to this, Even if the removal apparatus of this invention is applied also to water-permeable pavement Good.
[0035]
【The invention's effect】
As is apparent from the above description, in the invention of claim 1, traveling of the removing device is ensured by the front and rear traveling rolls, and each roll surface of the front and rear traveling rolls is brought close to the front and rear side wall surfaces. , since the sealing between the front and rear lower side wall pavement surface, it can be greatly suppressed as compared the amount of outside air from entering the housing portion due to wear of the running time of the pavement surface in the prior, the result It is possible to maintain the negative pressure state in the accommodating portion well over a long period of time, and the effect of being able to efficiently perform the suction and recovery of the mixed water of clogged material and water over a long period of time. Is obtained.
[0036]
Further, since the sealing between the front and rear lower side wall and pavement surface by the front and rear side running rolls, the sealing member attached to the front and rear lower side wall as in the prior art pavement surface when the the accommodating portion and the negative pressure state adsorbed There is nothing to do. As a result, it is possible to obtain an effect that it is possible to ensure stable running of the removing device. In the invention of claim 2, since the roll surfaces of the front and rear traveling rolls are formed of an elastic material, when traveling on the uneven pavement surface, the roll surface follows the unevenness and the pavement surface and the roll surface. can ensure that no gaps, as a result, can be made of outside air into the housing portion is more stable negative pressure state of the housing portion and favorably prevented from entering between the The effect is obtained.
[0037]
In invention of Claim 3, the effect that the grade of the negative pressure in a accommodating part can be adjusted is acquired by enabling the clearance gap between a front side and a rear side traveling roll, and the said wall surface to be adjustable.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a state in which a drainage pavement clogging removal device, 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 broken.
3 is a cross-sectional view taken along line (3)-(3) in FIG.
4 is a view seen from the direction of arrow (4) 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 a schematic view for explaining a conventional removal apparatus.
[Explanation of symbols]
a ... drainage pavement h ... pavement surface e ... gap S ... spraying position T ... substantially sealed space 1 ... truck (vehicle)
3 ... Outer box ( container )
5a: Front side wall of outer box (front side wall of storage part)
5b ... Rear side wall of outer box (rear side wall of storage)
5c, 5d ... Both end walls of the outer box (both end walls of the storage part)
8 ... Injection nozzle 10 ... Suction duct 11 ... Suction port 16 ... Seal rubber (blocking member)
17 ... Front running roll 19 ... Rear running roll

Claims (3)

An injection nozzle that injects pressure water toward the pavement surface and causes the clogged material clogged in the pavement gap to float on the pavement surface by this injection pressure; The lower portion is disposed so as to be able to travel above the pavement surface, and at least the position where the pressure water sprayed from the spray nozzle is sprayed onto the pavement surface and the suction port of the suction duct are disposed on the inner side. A housing part, a blocking member that closes the space between both lower wall portions in the width direction of the housing part and the pavement surface, and a front wall lower part in the running direction of the housing part, extending along the width direction of the housing part And a front traveling roll disposed so as to be rotatable with the roll surface approaching the front side wall surface, and a roll surface extending along the width direction of the housing portion at a lower portion of the rear side wall in the traveling direction of the housing portion. The rear side Is brought close to the surface and a side running roll after being arranged rotatably, characterized in that the closing member, the front driving rolls and rear driving roll the inside of the receiving portion and the substantially sealed state paving Clogging removal device. The pavement clogging removal device according to claim 1, wherein roll surfaces of the front and rear traveling rolls are formed of an elastic material. The pavement clogging removal device according to claim 1, wherein a gap between the front and rear traveling rolls and the wall surface is adjustable.

Images