JPH0220256Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a vacuum cleaner for collecting dust (grass, dead leaves, etc.) on the fairways and greens of golf courses.

[Conventional technology]

Golf course vacuum cleaners use a sweeping rotor to sweep dust into a suction port, blow it out into a hopper for collection, and release air into the atmosphere from a porous part on the top wall of the hopper. It's getting old.

[The problem that the invention attempts to solve]

Since air is blown out along with the dust sucked into the porous part of the top wall of the hopper, small dust etc. pass through the porosity, reducing the dust collection efficiency and causing the generation of dust (such as sand and dust). It was hot.

In addition, clogging of the porous parts prevents the release of air to the atmosphere, resulting in a significant decrease in suction power.
There was also a problem that the dust could not be sucked in effectively.

[Means for solving problems]

In order to solve the above problems, this invention provides a closed end plate at the end of the discharge tube, and the discharge tube is passed through the center of the closed end plate with the discharge end facing the porous part. A swirl flow generating device that generates a centrifugal force is provided in front of the inlet end of the discharge tube in the outlet tube, and a separation plate having an inlet on a part of the periphery is provided in front of the closed end plate in the outlet tube. A drop opening is provided at the bottom of the peripheral wall located between the separation plate and the closed end plate of the cylinder.

[Effect]

When the vehicle enters the green or fairway of the golf course, the fan and rotating body are started to operate, and the rotating body sweeps dust into the suction port of the fan.

The swept-in dust heads toward the outlet pipe and is swirled by a swirling flow generator in the middle, generating centrifugal force. As a result, the dust swirls along the inner circumference of the outlet pipe and exits from the inlet. It faces between the separation plate and the closed end plate, and from the drop opening into the hopper.

Air is also released into the atmosphere from the ejection tube through the porous portion.

〔Example〕

In the figure, 1 is a traveling vehicle, and a fan 2 is installed on this traveling vehicle 1.

Further, a sweeping rotary body 4 for sweeping dust into the suction port 3 of the fan 2 is provided on the lower side of the traveling vehicle 1.

The rotating body 4 is a brush or the like, and is driven by a motor.

Reference numeral 5 denotes a dust collection hopper having a porous portion 6 on the top wall, and the outlet pipe 7 of the fan 2 passes through the peripheral wall of the hopper 5.

Further, the end of the discharge port tube 7 is closed by an end plate 8, and a porous portion 6 is provided at the center of the end plate 8.
A discharge cylinder 9 with its discharge end facing is passed through.

Further, in front of the inflow end of the discharge cylinder 9 within the discharge port cylinder 7, a swirling flow generating device 10 for generating centrifugal force is provided.

The above-mentioned swirl flow generating device 10 includes a disc 11 whose peripheral edge with a predetermined interval on the inner periphery of the discharge pipe 7 is bent in the direction of the discharge pipe 9, and a circular An annular plate 12 protruding from the inner periphery of the discharge port tube 7 at a predetermined interval on the periphery of the plate 11, and a large number of plates arranged between the periphery of the disc 11 and the annular plate 12, 11 and an arcuate guide plate 13 having both side edges fixed to the annular plate 12, other structures may be used.

Further, in front of the end plate 8 in the discharge port cylinder 7, a separation plate 15 having an inlet 14 on a part of its periphery is provided.

Furthermore, the separation plate 15 and the end plate 8 of the discharge port tube 7
A drop port 16 for dropping dust into the hopper 5 is provided at the bottom of the peripheral wall located between the hopper 5 and the hopper 5.

The hopper 5 is composed of a pair of half-casings, and one half-casing is opened and closed by the action of a cylinder 17.

Further, in places where cleaning is difficult, a hose (not shown) connected to the suction port 3 may be used to suck out dust.

Furthermore, the traveling vehicle 1 may be of a self-propelled type instead of the illustrated towed type.

Next, the cleaning method will be explained.

A traveling vehicle 1 enters the fairway of a golf course, and a fan 2 and a rotating body 4 are operated to make the traveling vehicle travel.

The dust swept into the suction port 3 by the rotating body 4 passes through the fan 2 and heads toward the discharge port tube 7, and when it reaches the swirling flow generator 10, it is swirled and a centrifugal force is generated, resulting in the dust flowing into the discharge port. While rotating along the inner periphery of the cylinder 7, it heads from the inlet 14 between the separating plate 15 and the end plate 8, and then falls into the hopper 5 from the drop opening 16.

On the other hand, air is discharged from the discharge cylinder 9 to the atmosphere through the porous portion 6.

〔effect〕

As described above, according to the vacuum cleaner of this invention, the dust that is directed toward the hopper by the fan is first swirled by the swirling flow generating device that generates centrifugal force to follow the inner circumference of the discharge tube, and then Since the air is guided from the inflow port to the drop port and dropped into the hopper, only air can pass through the discharge tube and be released into the atmosphere from the porous portion.

Therefore, it is possible to eliminate the dust and sand that is generated when the air is mixed with the air, and also to eliminate inconveniences such as a decrease in suction power and a decrease in dust collection efficiency due to clogging of the porous portion.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional side view of the vacuum cleaner according to this invention.
Figure 2 is an enlarged longitudinal side view showing the main parts of the same as above;
The figure is a sectional view taken along the line X-X in Figure 2, and Figure 4 is a cross-sectional view along the line
It is a sectional view along line YY of the figure. DESCRIPTION OF SYMBOLS 1... Traveling vehicle, 2... Fan, 3... Suction port, 4... Rotating body, 5... Hopper, 6... Porous part, 7... Outlet tube, 8... End plate, 9... ...Discharge tube, 10...Swirling flow generator, 11...Disc, 1
2... Annular plate, 13... Guide plate, 14... Inflow port, 15... Separation plate, 16... Fall port.

Claims (1)

[Scope of utility model registration request] A traveling vehicle, a fan provided on the traveling vehicle, and an exhaust pipe of the fan communicate with the inside thereof, and
A cleaning device consisting of a dust collection hopper provided on the traveling vehicle with a porous air release section on the top wall, and a sweeping rotating body provided under the traveling vehicle to sweep dust into the suction port of the fan. In the machine, a closed end plate is provided at the end of the discharge tube, and the discharge tube with the discharge end facing the porous part is passed through the center of the closed end plate, and the discharge tube inside the discharge tube is provided with a closed end plate. A swirling flow generating device that generates a centrifugal force is provided in front of the inlet end of the outlet tube, and a separation plate having an inlet on a part of the periphery is provided in front of the closed end plate in the outlet tube. A vacuum cleaner characterized in that a drop opening is provided at the bottom of the peripheral wall located between the end plate and the peripheral wall.