JPH0738342Y2 - Cleaning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a separating device that communicates with a discharge port of an air blower mounted on a vehicle body through a duct, and a lower part of the separating device. Equipped with a dust collection container that detachably engages and stores the separated dust, and a dust collection port that communicates with the air suction port of the air suction unit, and sucks the ground dust by the air suction unit that is driven by the engine. The cleaning machine is housed in the dust container.

(Prior art and problem to be solved) Conventionally, in this type of cleaning machine, since a large amount of air is absorbed, a large amount of exhausted air after dust separation is blown out near the operator. If the dust remains inside, it is not preferable for the hygiene of the worker, and the dust is scattered around, impairing the hygiene of the environment. For this reason, it is necessary to remove as much dust as possible from the exhaust air.
As shown in FIG. 14, the exhaust air was filtered by passing through a filter 93 formed in an annular shape while bending the filter body 95 back and forth, but this filter body 95 is apt to be clogged, and the filter body 95 may be cleaned. Maintenance was troublesome.

[Configuration of Device] (Means and Actions for Solving the Problem) The present invention is intended to remove a fine dust in a large amount of exhaust air by further providing a centrifugal separator behind the air blower of the separator. , The dust such as the fallen leaves on the ground that is sucked together with the suction air from the dust collection port is sent from the air blower to the dust container so as to rotate along the inner wall, and the large dust is separated by the centrifugal force along the inner wall. A large amount of blown air that has fallen into a dust container and has large dust removed enters the air exhaust device in the center of the upper part, passes through the centrifugal separator installed inside, and also removes fine dust in the large amount of air blow. And is discharged to the outside.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIGS. 1 to 10, the air blower 1 is configured as follows. That is, the engine 3 is provided above the main body 2. Crankshaft (rotating shaft) 5 of engine 3
The fan 7 is fixed to the tip of the fan by a nut 9 and rotates in the horizontal direction. A dust collection port 11 is provided in the lower portion of the main body 2 close to the ground, and communicates with the inside of the main body 2 via a dust collection path 13 mounted on a vehicle body 12 and a wind suction port 5. A discharge port 17 for discharging dust sucked by the rotation of the fan 7 is provided at the rear part of the main body 2, and a separating device 19 is provided via a duct 18.
Is in communication with. The separating device 19 is configured as follows. That is, the discharge port 17 has a cylindrical portion 21 provided at the top.
And is opened toward the cylindrical direction of the upper part of the cylindrical part 21. A conical exhaust pipe 23 is provided at the center of the cylindrical portion 21, and a large cylindrical portion 25 is formed below the exhaust pipe 23. The upper part of the exhaust pipe 23 is formed in a shape in which the outer periphery is bent upward, and a tubular exhaust device 27 is fitted therein. The air exhaust device 27 is configured as follows. That is, the tubular body 29
A horizontal partition plate 31 divides the inside into an upper chamber 33 and a lower chamber 35, and a large number of centrifugal separators 36 are provided in the upper chamber 33. As shown in FIGS. 3 to 5, the centrifugal separator 36 has a cylindrical main body 37 whose lower end communicates with a communication hole 39 formed in the partition plate 31, and in which a fixed blade 41 inclined in the circumferential direction is provided. The upper end of the main body 37 opens into the upper chamber 33, and the lower end of the main body 37 is opened.
Insert the upper end of the conical cylinder 43 that opens at the center of the upper end of 37 into the upper chamber 33
It communicates with a communication hole 45 provided in the upper surface plate 44 that covers the above-mentioned surface. The cover 47 that covers the upper portion of the centrifugal separator 36 is provided with an exhaust port 49 that opens rearward and obliquely downward. At the lower end of the discharge path 51 communicating with the lower part in the upper chamber 33, a discharge port 53 close to the ground is opened.

The vehicle body 12 is provided with front wheels 55 and rear wheels 57, and a handle 59 is provided in the rear.
Is provided.

A dust container 61 made of a non-breathable material is provided at the lower end of the large cylindrical portion 25.
Are fixed via an annular packing 63. A swing rod 65 is pivotally attached to the vehicle body 12 at its lower end by a shaft 67.
An engaging portion 69 having a concave upper surface is fixed to an upper end of the dust container 61, a locking piece 71 for discharging downward is engaged with an upper front portion of the dust container 61, and a rear upper portion of the dust container 61 is It is removably locked to the lower surface of the large cylindrical portion 25 by a locking tool 73. The swing rod 65 is provided so that its length can be adjusted closer to the turnbuckle 75 on the way, and is connected to the vehicle body 12 by the chain 77 to restrict the plate swinging downward. Wheels 7 are attached to the bottom of the dust container 61.
9,79 are provided. The lock 73 is configured as follows. That is, the upper end of the hook 85 is pivotally attached by the shaft 87 to the lever 83 pivotally attached to the large cylindrical portion 25 by the shaft 81, and the lower end of the hook 85 is the flange portion 89 on the upper surface of the dust container 61.
Is locked via packing 63.

In the above embodiment, the dust sucked by the blower 1 enters the cylindrical portion 21 from the discharge port 17 and descends while swirling. Among them, the exhaust air containing fine dust and the like is exhausted by the exhaust pipe 23.
Then, the dust is removed through the centrifugal separator 36 and discharged to the outside, and the rough leaves, paper scraps and the like descend along the inner surface of the cylindrical portion 21 and are housed in the dust container 61.

A wind shield 90 is provided behind the air exhaust port 49 to prevent the exhaust air from being blown on the worker. The wind shield 90 may be fixed to the handle 59, and a pocket for accommodating a dust bag or the like may be provided if necessary.

In the centrifugal separator 36, the exhaust air entering from the communication hole 39 is swirled by the fixed blades 41, and the dust being blown by the centrifugal force gathers on the inner wall surface of the main body 37 and rises while swirling to the upper end of the main body 37. Enters the upper chamber 33 through the discharge passage 51 and is discharged to the ground from the discharge port 53 at the lower end. The blast from which dust has been removed passes through the conical cylinder 43 and the communication hole 45 and is discharged from the air outlet 49 of the cover 47.

When discharging the dust in the dust container 61, the stopper 73
When the lever 83 of is hooked rearward,
Is unlocked. The operator manually holds the rear flange 89
When the dust collecting container 61 is pulled backward while holding the above, the swinging rod 65 swings and the dust collecting container 61 descends and is placed on the ground. When mounting the dust container 61, the locking piece 71 on the front part of the dust container 61 is locked to the locking part 69 at the upper end of the swing rod 65 positioned by the chain 77, and the dust container 61 is attached. When the rear part is lifted and pushed forward, it swings to the front of the swing rod 65 to lift the dust container 61, and the lever 83 is rotated and locked while being engaged with the lower surface of the large cylindrical portion 25. It is fixed by the tool 73.

In the present embodiment, the separating device 19 is of a centrifugal type, but the present invention is not limited to the centrifugal type, and other means such as a filtering type may be used. Further, the centrifugal separator 36 is not limited to the axial flow type that inflows and discharges in the axial direction as in the present embodiment, and a tangential type that inflows along the circumference from the side and discharges in the axial direction may be used. . Further, the exhaust port 49 may be provided in any of the front-rear direction and the left-right direction, or a filtering net may be provided in the exhaust passage such as the exhaust port 49.

FIG. 11 shows another embodiment of the discharge passage 51, and the discharge port 53
A bag-shaped auxiliary dust container 91 made of cloth is provided in the.

[Effect of the Invention] According to the present invention, the following effects can be obtained. (1) No clogging and no decrease in suction capacity due to increased ventilation resistance. (2) No clogging occurs even if water is sucked. (3) It is possible to separate minute dust in a large amount of blown air.

FIGS. 12 to 14 show an example of a conventional cleaning machine. On the upper surface of the exhaust pipe 23, a cylindrical filter 93 is placed via packing 94. The filter 93 is a cylindrical perforated plate 97, 9 which covers the inner surface and the outer surface of a filter body 95 formed in a cylindrical shape by alternately bending breathable paper in the opposite direction.
Annular groove plates 101 and 103 covering the upper and lower ends of 9 are fixed to one body. A cover 105 whose edge is bent downward is engaged with the upper surface of the filter 93, and is fixed to the exhaust pipe 23 by a nut 107. The same reference numerals as those shown in FIGS. 1 to 9 represent the same components. Separation device
Exhaust air, which has also separated and removed large dust at 19, passes through the filter 95 of the filter 93 and is discharged to the atmosphere. When the filter body 95 is clogged, the cover 105 is removed by the nut 107, and the filter 95 is taken out to clean the attached dust.

[Brief description of drawings]

1 and 2 are a side sectional view and a plan view, respectively, of an embodiment of the present invention, and FIG. 3 is a side sectional view of a centrifugal separator, and FIG.
5 and 6 are respectively a plan view and a perspective view of a fixed wing, FIG. 6 is a plan view of a dust container, and FIGS. 7 and 8 are side views, front views, FIG. 9 and FIG. FIG. 10 is a side view and a rear view of the locking device, and FIG. 11 is a side view of another embodiment of the discharge passage.
FIG. 12 is a side sectional view of a conventional cleaning machine, and FIGS. 13 and 14 are an enlarged side sectional view and an enlarged plan sectional view, respectively, of the relevant part. 1 …… Blower, 11 …… Dust collection port 12 …… Body, 15 …… Suction port 17 …… Discharge port, 18 …… Duct 19 …… Separator, 36 …… Centrifuge 61 …… Dust container

Claims (1)

[Scope of utility model registration request] 1. A separating device 19 which communicates with a discharge port 17 of an air blower 1 mounted on a vehicle body 12 through a duct 18 to separate large dust from an intake air, and a detachable part at a lower part of the separating device 19. A dust container 61 for accommodating the large dust separated by combining
And a dust collecting port 11 communicating with the air intake port 15 of the air suction device 1 in the upper part of the separating device 19,
A centrifugal separator 36 for separating minute dust in the exhaust air is provided, and a discharge path 51 for guiding the minute dust separated by the centrifugal separator 36 to a discharge port 53 close to the ground surface is provided. The cleaning machine is characterized in that a cover 47 is provided to cover the communication hole 45, which is the exhaust air outlet of the centrifugal separator 36, and to guide the exhaust air to the exhaust air outlet 49.