JP3232428U - Garbage suction collection vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garbage suction recovery vehicle which collects garbage in the vicinity of a roadway, a sidewalk, a median strip, a slope of a road, etc. by a rational method and solves problems in terms of traffic safety, hygiene and landscape. .. SOLUTION: A dust suction device 8, a suction hose 7 and dust containers 10 and 11 are mounted on a commercially available truck 1 with a crane, and all dust is sucked only by suction force without using a rotating brush that rubs the road surface. It is sucked and collected from the tip. According to the present invention, since the structure is simple and most of them are composed of a combination of commercially available products, maintenance is easy and the production can be inexpensive. [Selection diagram] Fig. 1

Description

The present invention relates to a dust suction / recovery vehicle that collects dust in the vicinity of a roadway, a sidewalk, a median strip, a slope of a road, etc. while traveling using a dust suction device.

Various kinds of garbage are scattered around roads, sidewalks, medians, and slopes of roads, and cannot be left unattended for traffic safety, hygiene, and landscape.
Although there are special vehicles that collect garbage on the roadway, there is no proposal to rationally collect garbage in other places by the same machine (Patent Documents 1 to 4 and Non-Patent Document 1, Non-Patent Document 1 and Non-Patent Document 1). Document 2).

Japanese Unexamined Patent Publication No. 2005-226320 Jitsuzensho 49-005971 Gazette Japanese Unexamined Patent Publication No. 2000-303421 Japanese Unexamined Patent Publication No. 50-037275

Howa Industries, Ltd. Internet Information Product Information Road Cleaning Vehicle "Street Sweeper" February 2021 URL: https: // www. howa. co. jp / products / vehicles / vehicles / products01. html Hiroyo Engineering Web Catalog Green Space Equipment Vacuum Sweeper February 2021 URL: https: // www. koyoeg. co. jp / green_tractor / vacum_sweeper /

It is required to collect garbage in the vicinity of roads, sidewalks, medians and slopes of roads in a rational manner, and to solve the problems in terms of traffic safety, hygiene and landscape.
The conventional method uses a rotating brush and a blower that rubs the road surface attached to a special vehicle to scoop up and collect the dust, but this is limited to the dust on the roadway. That is, there is no proposal to collect dust in the vicinity of sidewalks, medians, road slopes, etc. by the same machine in a rational manner. In addition, the above-mentioned method cannot collect bulky dust or heavy dust scattered on the roadway due to its structure.
An object of the present invention is to provide a new dust suction and recovery vehicle that solves the above-mentioned problems.

The present invention is a commercially available truck with a crane equipped with a dust suction device, a suction hose, and a dust container, and all dust is sucked and collected from the tip of the suction hose only by suction force without using a rotating brush that rubs the road surface. It is a thing.
That is, the air flow containing the dust sucked from the tip of the suction hose is guided to the dust catcher placed between the hose and the suction machine, and the dust flowing in from the outside is blocked by the perforated plate installed in the dust catcher. It is configured to be stopped and dropped into a garbage container placed below by its own weight.

The dust suction and recovery vehicle according to the present invention operates the crane of a truck with a crane left and right, front and back, and up and down to operate not only the roadway but also various dust (liquid) near the sidewalk, median strip, and slope of the road. (Including PET bottles, cans, bottles, iron pieces, etc.) can be sucked and collected.
Further, since the present invention has a function of automatically recovering the suction force of dust that gradually decreases as it is used, it is possible to continuously suck and collect dust for a long time.
Further, according to the dust suction and collection vehicle according to the present invention, a total of two people, a driver and a worker who operates the dust suction and collection device, perform suction and collection of dust while traveling. Work can be performed safely and efficiently while visually checking the suction recovery status.
In addition, the dust suction / recovery vehicle according to the present invention has a simple structure, and most of the members are composed of a combination of commercially available products, so that maintenance is easy and it can be manufactured at low cost.

It is a side view of a garbage suction collection vehicle. It is a top view of a garbage suction collection vehicle. The dust suction device including the suction machine and the equipment before and after it is shown. The shutter mechanism in the dust suction device is shown. It is a side sectional view of a shutter mechanism. The attachment of the suction hose is shown.

Using the crane mounted on the truck with a crane, hold the tip of the suction hose at the optimum position for sucking dust, and use the suction power of the suction device to suck the dust while running the truck at an appropriate speed. Collect the trash.

Hereinafter, examples will be described with reference to the accompanying drawings.
In FIGS. 1 and 2, a crane 2 capable of swinging left and right is provided behind the driver's seat of the truck 1 with a crane. Further, a pedestal 9, a dust suction device 8, a suction hose 7, a dust container 10, and a spare garbage container 11 are fixedly installed on the loading platform of the truck 1. A dust suction device 8 is installed on the gantry 9, and a dust container 10 is installed below.
The vertical arm 4 can be moved up and down by a winch attached to the crane.
The suction hose 7 is installed along the boom 3 and the vertical arm 4 of the crane 2, and when the dust suction device 8 operates, the inside of the suction hose 7 becomes a negative pressure state, and dust is sucked and collected from the tip thereof. The collected garbage is collected in the garbage container 10.
The suction hose 7 is a flexible hose with an inner diameter of about 300 mm (because even a plastic container containing residual rice, a PET bottle containing a drinking liquid, a can, a cash register bag containing a bottle, etc. can be sucked and collected from the suction hose) in the longitudinal direction. Use a stretchable one, and use a bellows for sharp bends as needed.
Dust that cannot be sucked and collected by the suction hose 7 (large and heavy) is collected by a worker and then stored in the spare dust container 11.

The mechanism of dust suction and recovery will be described in more detail with reference to FIGS. 3, 4, 5, and 7.
In FIG. 3, the suction machine 17 is rotated by the drive 18 (gasoline engine) to make the suction side negative pressure. The filled arrows in the figure indicate the air flow direction at this time. Due to this force, the dust sucked and collected by the suction hose 7 collides with the perforated plate 14. Since the perforated plate 14 is installed obliquely with respect to the air flow as shown in the drawing, the dust falls downward due to the momentum and its own weight at the time of collision, and collects in the dust temporary storage space 20 and the dust air separation space 19. The perforated plate 14 is made of stainless steel as an example, and holes having a diameter of 4 mm are provided at a density of about ^{360 holes / 100 cm 2.} Further, the perforated plate 14 is preferably installed at an angle of 45 degrees with respect to the air flow.

When dust collects to some extent in the dust temporary storage space 20 and the dust air separation space 19, the pressure in the space rises (that is, the degree of vacuum decreases), and the dust adhering to the 14 surfaces of the perforated plate falls downward and the dust chute. The valve 26 is pushed open and falls further down into the dust container 10. When dust falls, the flow of air passing through the perforated plate 14 recovers its momentum, the pressure in the dust temporary storage space 20 and the dust air separation space 19 decreases (that is, the degree of vacuum increases), and the dust suction force recovers. .. If this cycle is performed within a short time, there is no particular problem in the dust suction and collection work.

However, if the suction and collection of dust is continued for a long time, plastic pieces, paper pieces, cloth pieces, fallen leaves, etc. in the dust block the holes of the perforated plate 14 and reduce the suction power. In this case, if the pressure of the dust air separation space 19 continues to rise (that is, the degree of vacuum decreases) beyond a preset time (1 minute as an example), the pressure sensor 191 detects it. Upon receiving the signal from the pressure sensor 191 the valve control device 100 performs a predetermined control calculation and issues a command to drive the gearbox 163. The gearbox 163 is an actuator that moves the front plate 16 having a slit arranged on the downstream side of the perforated plate 14 from the position of FIG. 4 (B) to the position of FIG. 4 (C). As a result, the slit of the rear surface plate 15 which is installed adjacent to the front plate 16 and also has a slit is closed, and the suction force of the suction machine 17 is incapacitated. In this way, the front plate 16 and the rear plate 15 are provided with slits, respectively, and the total area of the slits is about half of the cross-sectional area of the air passage.
The shutter mechanism composed of the front plate 16 and the rear plate 15 will be described in more detail with reference to FIG. The rear surface plate 15 is a fixed steel plate having a slit through which air passes. The front plate 16 is also a movable steel plate having a slit through which air can pass. The gearbox 163 is a device (actuator) that moves the front plate 16 in the horizontal direction. FIG. 4B shows a state in which the slits of the rear surface plate 15 and the front plate 16 overlap each other. That is, it shows the state during suction and collection of dust. FIG. 4C shows a state in which the front plate 16 slides and closes the slit of the rear plate 15. In FIG. 4, the mutual positional relationship of the slits (A), (B), and (C) is shown by a broken line. That is, the state (C) indicates a state in which the suction and collection of dust is interrupted.
Further, FIG. 5 is a cross-sectional view of the side surfaces of the rear surface plate 15 and the front surface plate 16. The front and rear plates are in close contact with each other in the housing 162 fixed to the housing. A gasket 161 is attached between the front plate 16 and the housing 162 on the intermediate space 21 side (perforated plate 14 side) to minimize air leakage.

At the same time as driving the front plate 14 described above, the exhaust flow conversion valve actuator 301 is driven by a command from the valve control device 100, and the exhaust flow conversion valve (A position) 30 is moved to the position of the exhaust flow conversion valve (B position) 31. Move. Similarly, the air intake valve actuator 241 is driven by a command from the valve control device 100, and the air intake valve 24 installed at the connecting portion forming the space 22 in front of the suction machine is opened.
During this time, the suction machine 17 continues to rotate while taking in air through the open air intake valve 24, and the positive pressure air discharged from the suction machine 17 enters the intermediate space 21 through the connecting pipe 23 and enters the hole of the perforated plate 14. The clogging of the holes is removed by blowing back the dust that is blocking the dust to the dust air separation space 19 side and the dust temporary storage space 20. The air flow direction at this time is shown by a white dashed arrow in FIG. At the same time, the fine dust accumulated in the lower part of the intermediate space 21 pushes open the fine dust chute valve 28 in the lower part of the fine dust chute 25 and falls into the dust container 10.
These series of automatic hole clogging clearing processes are completed after a time (20 seconds as an example) set in advance in the valve control device, and each valve returns to its original position according to a command from the valve control device 100 to suck and collect dust. Will resume. That is, the front plate 16 returns to the position shown in FIG. 4 (B), the exhaust flow conversion valve becomes (A position) 30, and the air intake valve 24 is closed.

If the clogging of the holes of the perforated plate 14 cannot be cleared even if the above mechanism works, the operation of the dust suction device 8 is interrupted, and the hand holes 141 and 142 provided in the housings before and after the perforated plate 14 are manually operated. Open it with and use a cleaning brush etc. to solve it manually.

Fine dust is separated as much as possible by a cyclone separator 12 installed before discharging positive pressure air from the suction machine 17 into the atmosphere. The separated fine dust falls into the dust container 10.

A member including the above-mentioned perforated plate 14 and forming a dust air separation space 19, a dust temporary storage space 20, and an intermediate space 21 serves as a dust catcher.

Hereinafter, the specifications and usage of the main equipment used in this embodiment will be outlined.
Since the truck 1 with a crane travels at low speed to suck and collect dust near the road, sidewalk, median strip, road slope, etc., install tires with the smallest diameter as long as it does not interfere with driving. It is preferable to do so.
The suction machine 17 is a centrifugal blower (blower) and is driven by a drive machine 18 (for example, an air-cooled gasoline engine of 30 horsepower). It is preferable that the drive unit is equipped with a soundproofing device.
The dust air separation space 19, the intermediate space 21, and the air passage (housing of the dust trap) of the space 22 in front of the suction machine are preferably made of steel plate and square in order to facilitate attachment of related members.
In order to reduce the weight of the dust container 10 and the spare garbage container 11, it is preferable that the skeleton is made of steel and the cover is made of canvas cloth. Both trash bins have doors to allow trash to be carried out. In addition, the spare dust container 11 has an opening that allows dust to be thrown in manually.
The suction machine exhaust pipe 13 is preferably made of a steel plate and has a square shape in order to facilitate attachment of related members.
The dust chute valve 26 and the fine dust chute valve 28 are closed by a spring and do not prevent dust from falling. Therefore, the spring strength is preferably such that the valves are lightly closed.
If economically feasible, the loading platform of the truck 1 with a crane is preferably of a hydraulic dump type that is easy to discharge the dust of the dust container 10 and the spare garbage container 11.
It is possible to attach an attachment most suitable for the situation of the dust collection place to the tip of the suction hose 7. For example, the dust dumped in the median strip is sucked and collected by connecting the suction hose attachment 71 of FIG. 6 to the tip of the suction hose 7 and guiding the tip of the hose to the dust. The diameter of the suction port of the attachment 71 is smaller than that of the hose body. Further, the attachment 72 is for sucking dust on a wider surface and corresponds to the head of a household vacuum cleaner, and the opening shape thereof is rectangular or oval.

1 Truck with crane 2 Crane 3 Boom 4 Vertical arm 5 Vertical arm Anti-sway assist rod 6 Vertical arm Anti-sway assist rod Length adjuster 7 Suction hose 71 Suction hose attachment example 1
72 Suction hose attachment example 2
8 Dust suction device 9 Stand 10 Dust container 11 Spare dust container 12 Cyclone separator 13 Suction machine Exhaust pipe 14 Perforated plate 141 Hand hole in front of perforated plate 142 Hand hole behind perforated plate 15 Rear plate 16 Front plate 161 Gasket 162 Housing 163 Gearbox 17 Suction machine 18 Driver 19 Dust air separation space 191 Pressure sensor 20 Dust temporary storage space 21 Intermediate space 22 Suction machine front space 23 Connecting pipe 24 Air intake valve 241 Air intake valve Actuator 25 Fine dust chute 26 Dust chute valve ( Closed)
27 Garbage chute valve (open)
28 Fine dust chute valve (closed)
29 Fine dust chute valve (open)
30 Exhaust flow conversion valve (A position)
301 Exhaust flow conversion valve actuator 31 Exhaust flow conversion valve (B position)
32 Air vent 100 valve control device

Claims (2)

A suction machine mounted on the loading platform of a truck with a crane, a drive machine for driving the suction machine, a dust catcher connected to the suction side of the suction machine, and a dust suction hose connected to the dust catcher. It is a garbage suction and collection vehicle that has
The dust trap has a perforated plate arranged between the connection to the suction machine and the connection to the dust suction hose.
When the suction machine is driven, the perforated plate is inclined with respect to the suction air flow of the suction machine so that the dust suction hose blocks the dust flowing in from the outside and drops it downward by its own weight. A garbage suction and collection vehicle that is characterized by being installed. In claim 1, the connecting portion forming a space in front of the suction machine between the dust catcher and the suction machine,
A shutter mechanism installed between the dust catcher and the connecting portion to temporarily block the dust suction air flow,
A connecting pipe that guides the discharged air of the suction machine to the space on the suction machine side of the perforated plate of the dust trap, and
An air intake valve that allows outside air to flow into the connection
The opening / closing actuators installed in the shutter mechanism, the connecting pipe, and the air intake valve, respectively.
It has a pressure sensor installed on the dust suction hose side of the perforated plate, and has.
By operating the opening / closing actuator so that the shutter mechanism is closed and the connecting pipe and the air intake valve are opened based on the measured values of the pressure sensor, clogging of the perforated plate is eliminated. A dust suction and recovery vehicle characterized by forming an air flow.

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