JPS6122883Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum suction device that includes a vacuum generator, a dust collection tank and a filtration device connected thereto, and particularly relates to improvements in the dust collection tank.

Generally, a vacuum suction device consists of a vacuum generator such as a high-pressure Roots blower, and a dust collection tank and filter device connected to the vacuum generator, respectively. , fine dust is disposed of using sieving equipment such as cyclones and cloth. For this reason, the weight and installation space of vacuum generators, overflow devices, noise reduction devices, etc. become large, and when these are mounted on a vehicle, the vehicle must be large, making it difficult to operate in urban areas, factories, etc. due to road and passage conditions. There is a problem in that it is a hindrance. In addition, if it is installed in a regular car, the dust collection tank capacity and loading capacity will be smaller.
There are efficiency issues when considering waste transportation.

For this reason, tank trailers and other receiver tank trucks have been developed, but most of them use a hydraulic dumping method for discharge, which is expensive and unstable due to the back and forth movement of the center of gravity due to the tilting of the dump truck. , difficult to discharge due to uneven terrain;
This limits the original function of the receiver tank both in terms of structure and weight.

The present invention was developed in view of the current situation, and its purpose is to provide a vacuum suction device that can increase the tank capacity compared to the weight of the body.

This invention provides an outlet for the sucked dust at the suction side end of the dust collection tank so that it can be opened and closed, and also arranges the dust collection tank diagonally with the outlet side at a low level, and the bottom of the dust collection tank. In addition, a coreless screw conveyor is arranged to send the dust to the discharge port, so that the dust can be discharged without using a hydraulic dump system.

Hereinafter, the present invention will be explained based on an embodiment shown in FIGS. 1 to 3.

In FIG. 1, reference numeral 1 denotes a vacuum suction wheel, and the vacuum suction wheel 1 is equipped with a vacuum generator 2 comprising a high-pressure Roots blower, etc., and a filter device 3 connected thereto. A dust collecting tank 6 mounted on a receiver trailer 5 is connected to the filtering device 3 via a connecting hose 4, and a suction pipe 7 is connected to the dust collecting tank 6. When the vacuum generator 2 is driven to suck dry dust, etc., the dust with a large mass is removed from the dust collection tank 6.
The fine dust is allowed to settle by gravity, and the fine dust passes through a dust collecting tank 6 and a connecting hose 4 to be treated by a filtering device 3.

The receiver trailer 5, as shown in FIG.
It consists of a trailer body 8 and a dust collection tank 6 mounted on the trailer body 8.

The trailer body 8 has a connecting fitting 9 on its tip side.
However, wheels 10 are also provided on the rear end side,
An auxiliary leg 11 is provided on the side of the connecting fitting 9, as shown by the chain line in FIG. 2, and is pivoted and locked around its upper end. And on the trailer body 8,
The dust collection tank 6 is mounted diagonally so as to have a downward slope toward the rear end side.

The dust collection tank 6 is formed in a cylindrical shape, and has an exhaust pipe joint 12 at its tip, i.e., front end, and at its rear end, its upper end is hinged to a bracket fixed to the dust collection tank 6, so that it can be opened and closed. A rear gate 13 is provided respectively. The rear gate 13 has a suction pipe joint 14 at its upper position.
However, a drainage pot 15 is also provided at the lower position. At the bottom of this dust collection tank 6,
A coreless screw conveyor 16 is arranged, and the upper end of the coreless screw conveyor 16 is rotatably supported by a bearing box 17 provided at the front end of the dust collecting tank 6. And this coreless screw conveyor 1
6 is a small engine 1 with a clutch and reduction gear mounted on the trailer body 8 as shown in FIG.
8 through a chain 19. Exhaust pipe joint 1 inside dust collection tank 6
A baffle 20 is provided at a position facing 2, as shown by a broken line in FIG.

The receiver trailer 5 configured in this way is
It is connected to and towed by the vacuum suction wheel 1 shown in FIG. 1 or the receiver wheel 21 shown in FIG. 3 via the connecting fitting 9.

The coreless screw conveyor 16 of the dust collection tank 6 mounted on the receiver car 21 is rotatably driven via a power extraction device 22 attached to the receiver car 21.

Next, the effect will be explained.

When suctioning dry dust, etc., first connect the dust collection tank 6 to the filter device 3 on the vacuum suction vehicle 1 via the connection hose 4, as shown in Fig. 1, and connect the suction pipe to the dust collection tank 6. Connect 7. Then, the vacuum generator 2 is started. Then, the dust is transferred to the dust collection tank 6 through the suction pipe 7 by the suction force of the vacuum generator 2.
sucked inside. Here, the larger mass settles due to gravity, and the fine dust is further sent to the filtering device 3 via the connecting hose 4, where it is treated.

When discharging the dust contained in the dust collection tank 6, the rear gate 13 is first opened as shown by the chain line in FIG. Then, the small engine 18 is started to rotate the coreless screw conveyor 16.
Then, the dust is sent to the rear gate 13 side by the coreless screw conveyor 16.

According to the configuration described above, a hydraulic dump is not required to discharge the dust in the dust collection tank, so a hydraulic power source, a control device, piping, a cylinder, etc. are not required, and it is possible to achieve a reduction in weight and size. Also,
There is no shift in the center of gravity due to a dump truck, and the installation and structure are simple. On the other hand, the weight of the body can be reduced relative to the tank volume, which naturally makes it possible to make the vehicle smaller, allowing it to get closer to the cleaning site, and greatly improving work efficiency. In addition, it is possible to dispose of the waste on rough terrain without using a dump truck, and by simply starting the small engine when discharging, even a 2-ton ordinary tractor can carry and dispose of the waste. Furthermore, compared to cored screws used in bulk trucks, coreless screws do not get jammed, have a self-centering effect, and have less volume loss. It costs only a fraction of the weight of .

The present invention has been described above based on a preferred embodiment. According to the present invention, an exhaust port for sucked dust is provided at the suction side end of the dust collection tank, and a rear gate is provided to freely open and close this exhaust port. The dust collection tank is hinged and has a coreless screw conveyor disposed at the bottom of the dust collection tank to send the dust to the discharge port, and the dust collection tank is mounted diagonally on the vehicle with the discharge port side at a lower position. When discharging dust, all you need to do is open the rear gate and rotate the coreless screw conveyor, eliminating the need for a dumping device for the dust collection tank, and as a result, reducing the weight of the bodywork.
Compared to this mounting weight, the capacity of the dust collection tank can be increased.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram showing one embodiment of the present invention;
The figure is an enlarged view of the dust collection tank, and FIG. 3 is a schematic diagram showing an example of towing a receiver trailer. 1... Vacuum suction vehicle, 2... Vacuum generator, 3... Passing device, 6... Dust collection tank, 13... Rear gate, 16
... Coreless screw conveyor.

Claims (1)

[Scope of utility model registration request] In a vehicle-mounted vacuum suction device in which a vacuum generation device is connected to a dust collection tank that causes a large amount of dust to settle by gravity therein, and a filter device that processes fine dust, the suction side end of the dust collection tank is provided with: A discharge port for the sucked dust is provided, a rear gate is hinged to allow the discharge port to be opened and closed freely, and a coreless screw conveyor is provided at the bottom of the dust collecting tank to send the dust to the discharge port. A vacuum suction device characterized by a dust collection tank mounted diagonally on the vehicle with the discharge side at a low level.