JPH0248501Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vacuum type road cleaning vehicle.

Conventional vacuum road cleaning vehicles require a large amount of water to be sprinkled on the dust on the road and inside the suction pipe in order to separate dust and suction air in the dust storage tank, and separation of dust and air is not always possible. It wasn't done completely.

The object of the present invention is to provide a vacuum type road sweeping vehicle which is capable of reliably suctioning dust on the road, reliably separating the suctioned dust from air, and storing the separated dust in a dust storage tank.

The structure of the present invention is that a blower 2 for sucking dust is provided at the front part of a loading platform 1 fixed to the vehicle body, and the blower 2
A dust suction pipe 3 whose lower end opens toward the road surface at the rear of the
A filter drum 6 is provided above the suction pipe 3.
In a vacuum type road cleaning vehicle equipped with a dust storage tank 5, a dust storage tank 5 is installed at the rear of the loading platform 1, and a horizontal cylindrical mesh material 18, which is a breathable filter material, is installed at the front upper part of the dust storage tank 5. A filter drum 6 provided with is rotatably mounted on a bearing 19, partition walls 13 are provided on both sides of a side plate 16 of the filter drum 6,
The upper end openings 12 of the suction pipe 3 are opened toward the rear of the dust storage tank 5 on both sides of the partition wall 13, and dust flows into the dust storage tank 5 at the upper and lower positions of the filter drum 6 in the direction of the blower 2. Partition plates 14 and 15 are fixed to prevent this, and a clean air introduction body 8 having a clean air introduction port 7 on the outside of the vehicle body is installed inside the filter drum 6. A vacuum type road cleaning vehicle characterized in that a clean air blowing part 9 is opened toward a cylindrical part formed by a partition plate 14 and a plate body 20 provided below the dust storage tank 5. be. Further, a rotary brush 11 for removing dust is provided in front of or behind the outer surface of a vacuum type road cleaning vehicle in which a vane plate 10 is formed around the blowing part 9 of the clean air introduction body 8 or the filter drum where the blowing part 9 is located. It is something that

The present invention will be explained in detail below based on the drawings.

In the present invention, the upper end of the suction pipe 3, which has an opening at the bottom of the loading platform 1, opens at both sides of the upper part of the dust storage tank 5, as shown in FIGS. 1 and 2, to form an opening 12. . A pair of partition walls 13, 13 are provided above the dust storage tank 5 inside this opening 12, and the space formed by the partition walls 13, 13 is connected to a blower 2 provided in the loading platform 1.

A cylindrical filter drum 6 is rotatably provided in the space between the partition walls 13, 13, and the filter drum 6 is arranged so that when the air in the dust storage tank 5 is sucked into the blower 2, it always passes through the filter drum 6. Partition plates 14 and 15 are provided on the upper and lower surfaces of. (See Figures 3 and 8) The filter drum 6 is a cylindrical body with a pair of side plates 16, 16 and a grid-like body 17 or a large number of gaps on the circumferential side, and the outer periphery is made of an appropriate material such as nylon or Tetron. The side plate 16 is made of coarse woven fabric or mesh material 18, and the side plate 16 is connected to the partition wall 1 within the filter drum 6.
The filter drum 6 is rotated by a roller chain 21 which is rotatably supported by a bearing 19 of a clean air introduction body 8 fixedly attached to the filter drum 3 and 13 and meshed with a sprocket rotated by a motor 22. In addition, the clean air blowing part 9 of the clean air introducing body 8 is provided in the filter drum 6 so as to face the mesh material 18 on the side of the dust storage tank 5 from the partition plate 14 (in this embodiment, it is almost (located vertically).

In addition, the space on the outer surface of the filter drum 6 where the blowing part 9 is located is divided into a cylindrical shape by partition walls 13, 13, a partition plate 14, and a plate 20, and a mesh material 18 is formed in this space.
Rotating brush 1 for removing dust so that it comes into contact with the surface of
1 is provided. Furthermore, the front ends of vanes 10 provided on both sides of the blow-off portion 9 of the clean air introducing body 8 extend to the tip of the partition plate 14, and the rear ends extend to the rear of the plate body 20.

In the figure, 21 is a roller chain for transmitting the power of a hydraulic motor 22 provided to rotate the filter drum 6, 23 is a hydraulic motor that powers the rotating brush 11 for removing dust, and 24 is a hinge for connecting the dust storage tank 5. This is a lifting cylinder for lifting around 25.

In the above-described embodiment, the blowing of clean air and the rotary brush 11 for removing dust are used in combination, but it is possible to remove dust sufficiently by blowing clean air alone. In addition, since the pressure inside the dust storage tank 5 is low due to suction by the blower 2, clean air is automatically blown out from the blow-off part 9, but the blower etc. Air may be blown by.

When the present invention is configured as described above and the blower 2 is operated, the dust 4 existing on the road surface is sucked through the suction pipe 3 and stored in the dust storage tank 5 through the opening 12 of the suction pipe 3. At this time, since the airflow suddenly slows down, most of the dust falls into the tank and is stored in the dust storage tank 5. Dust that has a low specific gravity and does not fall is carried by the air current, bypasses the partition walls 13 and 13, and reaches the surface of the filter drum 6, as shown in FIGS. 6 and is discharged to the outside via the blower 2.

The filter drum 6 rotates clockwise in FIGS. 3, 8, and 9, and as the filter drum 6 rotates, the dust 4 adhering to the surface of the filter drum 6 is piled up. Then, the dust 4 is removed from the blowing part 9 of the clean air introducing body 8.
Since the pressure in the dust storage tank 5 is lower than that of the outside air, the outside air is blown out to the filter drum 6 through the clean air introducing body 8 and the blowing part 9 as shown in FIGS. 5 and 6. The dust trapped in the net material 18 is blown downward. Then, the dust 4 remaining on the filter drum 6 is swept away by the dust removal brush 11, and the dust on the net material 18 is almost completely removed. Therefore,
Even when the filter drum 6 rotates toward the blower 2, dust is not sent to the blower 2. Therefore, the filter effect can be maintained without the filter drum 6 becoming clogged.

In addition, since the clean air introducing body 8 is provided with the vane plate 10, there is no air flow in this part, and the vicinity of the blowing part 9 is separated by the partition walls 13, 13, the partition plate 14,
Since it is a cylindrical space formed by the plate body 20, only the airflow from the blow-off section 9 exists in this space, so that the dust 4 released from the filter drum 6 is returned to the filter drum 6.
will not be captured. Note that when the blower is stopped when the road surface cleaning is completed, the adhesion of the dust 4 to the filter drum 6 is stopped. Thereafter, the filter drum 6 and the rotary brush 11 for removing dust are rotated for a certain period of time to complete the removal of the dust 4 from the filter drum 6. Further, the dust 4 loaded on the loading platform is discharged from the dust storage tank 5 by extending the lifting cylinder 24.

Therefore, according to the present invention, it is possible to reliably separate the air that is sucked in together with the dust on the road by the filter drum 6, and the dust captured by the filter drum 6 can be removed from the clean air introduced from outside the loading platform. The dust is reliably removed from the filter drum by a rotating brush for removing dust, and is stored in a dust storage tank, which prevents clogging of the filter drum and allows for long-term use.

Since dust is removed from the air used for suction by a filter drum, the environment will not be degraded even if it is discharged to the outside of the loading platform.

Furthermore, the present invention has a simple configuration as described above,
It has excellent effects such as being able to be manufactured at low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a front view of the invention, Fig. 2 is a plan view of the same, and Fig. 3 is a plan view of the same.
The figure is an enlarged front view of the main part, Figure 4 is a side view of Figure 3,
Fig. 5 is an enlarged sectional view of the main parts of the present invention, Fig. 6 is a sectional view taken along the line A-A in Fig. 5, Fig. 7 is a perspective view of the clean air exhaust body used in the present invention, and Fig. 8 shows the state of use. The sectional view shown in FIG. 9 is a partially enlarged sectional view of FIG. 8. 1 is a loading platform, 2 is a blower, 3 is a suction pipe, 4 is dust, 5 is a dust storage tank, 6 is a filter drum, 7 is a clean air inlet, 8 is a clean air introduction body,
Reference numeral 9 indicates a blow-out portion, 10 indicates a wing plate, 11 indicates a brush for removing dust, 12 indicates an opening, 13 indicates a partition wall, 14 and 15 indicate partition plates, 16 indicates a side plate, 17 indicates a lattice-like body, 18 indicates a mesh material, 19 2 is a bearing, 20 is a plate, 21 is a roller chain, 22 and 23 are hydraulic motors, 24 is a lifting cylinder, and 25 is a hinge.

Claims (1)

[Scope of utility model registration request] A vacuum type vacuum type in which a blower for sucking dust is installed in the front part of the loading platform fixed to the vehicle body, a dust suction pipe whose lower end opens toward the road surface is installed behind the blower, and a filter drum is installed above the suction pipe. In the road cleaning vehicle, a dust storage tank is provided at the rear of the loading platform, and a filter drum having a horizontal cylindrical shape and provided with a breathable filter material on the outer periphery is rotatably attached to the front upper part of the dust storage tank, A partition wall is provided on both sides of the filter drum side plate, and the upper end opening of the suction pipe is opened toward the rear of the dust storage tank on both sides of the partition wall, and the dust is removed from the dust storage tank at the upper and lower positions of the filter drum by a blower. A partition plate is fixedly installed to prevent the air from flowing out in any direction, and a clean air introduction body having a clean air introduction port on the outside of the vehicle body is installed inside the filter drum, and the clean air introduced in the clean air introduction body is installed inside the filter drum. A vacuum type road cleaning vehicle characterized in that a blowing part is opened toward a cylindrical part formed by a partition plate and a plate body provided below the dust storage tank.