JPS5944411A - Vacuum type road cleaning vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum type road cleaning vehicle. Conventional vacuum road sweeping trucks spray a large amount of water onto the dust on the road and into the suction pipe in order to separate dust and suction air in the dust storage tank, and to prevent dirt from adhering to the suction hose. This was essential. For this reason, the space and weight occupied by the vehicle's water tank increased, and there was a limit to the amount of dust it could carry. In addition, the road surface gets dirty because of the sprinkling of water on the road, and since a large amount of water is required, it is necessary to replenish water several times a day.

The present invention has been made to eliminate the above-mentioned drawbacks. That is, the configuration of the present invention is that the rotary wet filter 1
A dust storage tank 3 is provided adjacent to the dust storage tank 2 equipped with a dust hopper 4 of the dust storage tank 3.
In the filter paper type diagram with a pipe lake 5, a filter cloth phantom dry filter 6 is attached, and the side plume 7 is further surrounded by a dust cover 8 and an engine room floor plate n, and the dust cover 8 is attached to the air suction port of the suction pipe 9. It is characterized by having an open connection.

An embodiment of the present invention will be described below based on the drawings.

The rotary wet filter 1 of the present invention has a filter belt 1
Using a relatively coarse woven fabric such as a sponge or cloth, the dust storage tank 2 is mounted diagonally on the upper left corner of the dust storage tank 2 using tension rollers 11 and 12, as shown in FIG. A water nozzle 13 is located near the bottom of the upper tension roller 11.
A drive motor 5 for rotating the filter belt 10 in the direction of the arrow in the figure is provided at the shaft end of the lower tension roller 12. Furthermore, a diaphragm 4-ra 14 is provided on both sides of the filter belt 10. The water nozzle 13 sprays a small amount of water onto the filter belt 10 to moisten it and make it easier to absorb dust, and the aperture row 214 squeezes out the muddy water adsorbed on the filter belt 10 to remove the mud from the filter belt 10. It is a useless item that allows for continuous use by regenerating.

As will be described later, the dust storage tank 3 is for completely filtering and storing fine dust leaking from the rotary wet filter 1. A dust storage tank door 15 is provided to discharge accumulated dust to the dust storage tank 2. Configure it so that you can. The dust storage tank 3 is connected to a dust hopper 4, and a paper filter type dry filter 6 is provided above the dust hopper 4. The filter paper type dry filter 6 has a filter paper 16 (or filter cloth) as shown in FIG. A dustproof cover 8 is connected to the air suction port of the suction pipe 9 with an open connection.

In addition, 17 is a suction pipe support caster wheel, 18 is a suction hose, and I9 is a cylinder. The reason why the side plume 7 is surrounded by the dust-proof cover 8 and the floor plate η is because the side plume 7 sweeps up dirt and sand from the roadside gutter, and when it takes it out, it blows up a large amount of dirt, so it is necessary to open it at the suction port of the suction pipe. This is because by covering the connected dustproof cover 8, the suction air from the suction pipe is guided to the side plume 7, and the dust that flies up is sucked in without leaking to the outside. (to keep dust moist and suppress dust).

Since the present invention is configured as described above, when cleaning a road, the dust swept out by the side plume 7 is not blown up to the outside by the dust cover 8, but moves to the suction pipe 9 side and passes through the suction hose 18. It is put into the dust storage tank 2. In this case, due to the rapid decrease in wind speed in the dust storage tank 2, heavy objects such as dirt and paper scraps fall and accumulate, but fine dust mixed in the suction air is absorbed by the blower. It is filtered by the filter belt 10 as it moves. This filtered dust is removed by the filter belt 10
The water is sprayed with water by the water spray nozzle 13 and becomes wet, so it adheres to the filter belt 10 and is squeezed out by the squeezing roller 14 as muddy water. The filter JO is no longer clogged and can be used continuously. Conventionally, in order to suppress the discharge of dust, water was sprinkled into the suction pipe 9 to adsorb the dust with water droplets and store it in the suction hopper. Furthermore, the fine dust mixed in the intake air is filtered through the rotary wet filter 1.
Since it is not possible to completely filter the dust, this dust is then filtered by a filter paper type dry filter 6, and only the sucked air is discharged from the blower. This filter paper type dry filter 6 is equipped with a vibrator (air-driven type) 5, and when the suction of the blower is stopped during dust dumping, vibration is applied by the pipe rake 5 to shake off the attached dust and cause clogging. It can be reused without any trouble. The dust that has been shaken off passes through a dust hopper 4 and is stored in a dust storage tank 3.

When discharging heavy dust and fine dust stored in the dust storage tank 2 and the dust storage tank 3, as shown in FIG. This is done by tilting and opening the discharge door 21.

In this case, the dust storage tank door 15 is automatically opened into the dust storage tank 2, and the fine dust stored in the dust storage tank 3 is discharged into the dust storage tank 2.
It is discharged to the outside together with heavy dust such as earth and sand stored in the dust storage tank 2. In addition, n is methane door 15
This is a locking device.

As explained above, according to the present invention, by using a filter, only a small amount of water is sprinkled on the filter belt, so the water tank capacity can be reduced to less than half that of the conventional one. Moreover, the required amount of water for the day can be secured by supplying water once a day (previously, it was necessary to replenish water two to three times a day with twice the capacity of the water supply tank).

) The water supply time is also greatly shortened, and the amount of water used is less than 115 liters compared to the conventional method, which has an economical effect, and the space and weight occupied by the vehicle's water tank is small, ensuring a large dust load capacity. be able to. Furthermore, since water is not sprinkled on the road surface and inside the suction pipe, the road surface will not become dirty, and the purpose stated at the beginning can be fully achieved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is an overall plan view, Fig. 2 is an overall side view of the same, and Fig. 3 shows a dust storage tank, a rotary wet filter, a filter paper type dry filter, and a blower. FIG. 4 is a sectional view of the central part of FIG.
FIG. 5 is a perspective view of the paper-type dry filter, and FIG. 6 is a side view showing the dust discharge state. 1 is a rotary wet filter, 2 is a dust storage tank, 3 is a dust storage tank, 4 is a hopper, and 5 is a vibrator.
(air-driven type), 6 is a paper-type dry filter, 7 is a side bloom, 8 is a dust cover, 9 is a suction pipe, 10 is a filter belt, 11.12 is a tension roller, 13 is a water nozzle, 14 is a squeezing roller, 15 is a dust storage tank door, 16 is a filter paper, 17 is a suction pipe support caster wheel, 18 is a suction hose, 19 is a cylinder, KA is a blower, 21 is a discharge door, n is a tank door locking device, 2 is a floor plate, and U is a hinge , 5 is a drive motor, and 26 is a cylinder. Patent applicant: Tokyu Car Manufacturing Co., Ltd.

Claims (1)

[Claims] A dust storage tank is installed adjacent to the dust storage tank equipped with a rotary wet filter, and a paper filter type dry filter with a vibrator is installed in the dust hopper of the dust storage tank. 1. A vacuum road cleaning vehicle, characterized in that the vehicle is surrounded by a floorboard, and the dustproof cover is connected to an air suction port of a suction pipe.