JPH02218320A - Sweeper - Google Patents

Abstract

PURPOSE:To reduce dust in exhaust air so as to make the sanitary surroundings around the workers satisfactory by opening a dust collecting port to a ground surface opening, by leading a discharge port duct to an air exhausting cylinder incorporating a separator having a vertical center axis, and by attaching a dust collecting container, removably to the lower part of the separator. CONSTITUTION:A fan 7 which is fixed to the lower end part of an engine 3 provided in the upper section of a body 2 is rotated horizontally. A dust collecting port 11 which is formed, near to the ground, in the lower part of the body 2, is communicated to the inside of the body 2 through a dust collecting passage 13 and air suction port 15, and a discharge port 17 formed in the rear part of the body 2 is communicated with a dust collector 19 through a duct 18. A cylindrical air exhausting cylinder 23 is provided in the center part of the upper part of the cylindrical section 21 thereof, and a cylindrical separator 25 made of metal gauze and having a diameter substantially equal to that of the air exhausting cylinder 23 is attached to the lower end part of the cylinder 23. Further, a disk-like shield plate 27 is fixed to the lower end of the separator 25 with a suitable gap around the outer periphery thereof. A dust collecting container 29 made of metal gauze or the like is attached removably to the lower end part of the cylindrical section 21 by means of a fixture 31, and a dust collecting bag 33 in the dust collecting container 29 is clamped between seals which are bonded to the lower end face of the cylindrical section 21 and the upper end face of the collecting container 29, respectively.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is directed to a fan connected to the discharge port of a suction fan that sucks in dust from the ground by rotating a fan installed horizontally by the drive of an engine. This relates to a common dust container.

(Prior Art) Conventionally, dust sucked into an air blower has been collected in a breathable dust collection bag attached in direct communication with the outlet of the air blower.

(Problem to be Solved by the Invention) Garbage such as fallen leaves and paper scraps are collected in the collection W1 bag mentioned above, but fine dirt and other particles in this bag clog the mesh of the dust collection bag, impairing ventilation and making collection difficult. This resulted in a decrease in dust capacity. Furthermore, when the dust collection bag is removed and the garbage is thrown away after cleaning, the fine dirt inside the bag scatters around, which is unfavorable from a sanitary standpoint.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a fan fixed to the lower end of the vertical rotating shaft of the engine, and a dust collection port communicating with the suction part of the fan is connected to the ground surface. The duct is provided with openings adjacent to each other, one end of which communicates with the discharge port of the fan, and the other end of which is provided with an opening in the circumferential direction inside a cylindrical part whose axis is perpendicular, and the other end of the duct is opened in the circumferential direction within a cylindrical part whose axis is perpendicular, and the other end of the duct is opened in the circumferential direction within a cylindrical part whose axis is perpendicular. , a cylindrical exhaust pipe equipped with a separation device is provided, and a spoilage container is detachably attached to the lower part of the cylindrical part.

(Function) The dust sucked from the dust collection port by the air suction device is ejected from the discharge port through the duct in the circumferential direction inside the cylindrical section, and descends while swirling. The exhaust air is separated through the exhaust I! The coarse dust such as fallen leaves and paper scraps is discharged from the cylinder to the outside and falls along the inner wall surface of the cylinder and is stored in a dust collection bag.

(Example) Hereinafter, one example of the present invention will be described in detail using the drawings.

In the figure, the air blower 1 is constructed as follows.

That is, the engine 3 is provided at the top of the main body 2. A fan 7 is fixed to the lower end of the vertical rotating shaft 5 of the engine 3 with a nut 9, and rotates in the horizontal direction. There is a dust collection port 1 at the bottom of the main body 2 close to the ground.
1 is provided, and a dust collection path 13. It communicates with the inside of the main body 2 via the air intake port 15. A discharge port 17 is provided at the rear of the main body 2 to discharge dust sucked in by the rotation of the fan 7, and the dust is collected through a duct 18! It communicates with the I device 19. The multi-layer device 19 is constructed as follows.

That is, the discharge port 17 communicates with the cylindrical part 21 provided at the upper part, and opens toward the upper circumferential direction in the cylindrical part 21. A cylindrical wind exhaust pipe 23 is provided at the center of the upper part of the cylindrical part 21, and a cylindrical separation device 25 having the same diameter as the wind exhaust pipe 23 and made of wire mesh is provided at the lower end of the wind exhaust pipe 23. It is installed. Roughly speaking, a disc-shaped shielding plate 27 is fixed to the lower end of the separation device 25 with an appropriate gap around the periphery.

At the lower end of the cylindrical part 21 is a defeat container 2 formed of wire mesh or the like.
9 is removably attached using mounting brackets 31, 31 provided at several locations. The dust collection bag 33 housed in the multi-layer container 29 is held between a seal such as rubber or sponge attached to the lower end surface of the cylindrical portion 21 and the upper end surface of the spoil container 29.

In the above embodiment, the dust sucked by the suction fan 1 enters the cylindrical part 21 from the discharge port 17 and descends while rotating, but fine dust and the like are separated through the separator 25 and discharged. The wind is discharged to the outside from the exhaust tube 23, and coarse fallen leaves, paper waste, etc. descend along the inner surface of the cylindrical portion 21, descend from the gap between the shielding plate 27 and the cylindrical portion 21, and are collected in the dust collection bag 33.
contained within.

In addition, in this application, the exhaust ff1fil123 may be formed in a conical shape. Further, the separation device 25 is not limited to a wire mesh, and may be of other types such as a paper filter or a centrifugal separator, and may be mounted above the exhaust pipe 23. The loose cause container 29 may be formed of a non-breathable material such as synthetic resin.

[Effect of the invention 1] According to the present invention, dust on the ground is sucked, separated and collected in a waste container, and dust in the air is separated by a separator, thereby reducing the amount of dust in the folding screen. , which improves the hygiene of workers without polluting the working environment.

In addition, if the shielding plate according to claim (2) is provided, the dust accumulated below the end shielding plate will not get on the airflow again and clog the separation device, or will not pass through and be discharged from the discharge pipe. .

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of one embodiment of the present invention, and FIG. 2 is a plan view of the essential parts. 3...Engine 5...Rotating shaft 7...Fan 11...Dust collection port 17...Discharge 018...Duct 21...Cylindrical portion 23...Exhaust pipe 25... Separation device 27...! ! Cover plate 29: Loss cause container agent Patent attorney Hidekazu Miyoshi

Claims (2)

[Claims] (1) A fan 7 is fixedly attached to the lower end of the vertical rotation shaft 5 of the engine 3, and a dust collection port 11 communicating with the suction part of the fan 7 is opened close to the ground surface, and one end is The other end of the duct 18 communicating with the discharge port 17 of the fan 7,
A separating device 25 is provided in a cylindrical portion 21 having a vertical axis and opened in the circumferential direction, and is provided at the center of the upper part of the cylindrical portion 21.
A cleaning machine characterized in that a cylindrical exhaust pipe 23 is provided, and a dust container 29 is detachably attached below the cylindrical part 23. (2) The cleaning machine according to claim (1), further comprising a shielding plate 27 provided with an appropriate gap around the outer periphery below the exhaust pipe 23.