JPH0535142Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a concrete floor cleaner that completely and efficiently cleans abrasive powder, laitance, etc. accumulated on a concrete floor surface during the finishing stage of construction work. Regarding.

[Conventional technology]

During the finishing stage of construction work, abrasive powder accumulates on concrete floors after polishing, and small irregularities and holes on the surface are filled with abrasive powder and laitance. A vacuum cleaner is used.

[The problem that the idea attempts to solve]

However, the above-mentioned conventional vacuum cleaners and rotary brush vacuum cleaners do not provide sufficient cleaning, and if floor painting or tiling work is carried out with incomplete cleaning, problems such as peeling of the floor surface may occur later. If you try to do a thorough cleaning with the conventional vacuum cleaner,
The problem is that the same area must be cleaned repeatedly over a long period of time, which is extremely inefficient.
The challenge was to develop a concrete floor cleaner that could clean thoroughly and efficiently.

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a concrete floor cleaner that can completely and efficiently clean a concrete floor.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a rotating brush connected to a dust suction machine, a closed space defined on a concrete floor surface, and a suction port connected to another dust suction machine in the inner space. This concrete floor vacuum cleaner is characterized in that a bulkhead connected to an air compressor and provided with an injection nozzle facing the concrete floor is provided in a movable dustproof case.

[Effect]

Large dirt and accumulated abrasive powder on the concrete floor are swept away by a rotating brush connected to the dust suction machine, sucked into the dust suction machine, and filled into small irregularities and holes on the concrete floor. Abrasive powder, laitance, etc. are blown up by the fume jetted from the jet nozzle onto the floor surface within the partition wall that defines a closed air above the concrete floor surface, and are sucked up from the suction port to another dust suction device, thus removing the dust from the concrete floor. The surface is thoroughly and efficiently cleaned by the cooperation of the rotating brush and the spray nozzle.

〔Example〕

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

FIG. 1 is a partially cutaway side view of a concrete floor cleaner according to the present invention, and FIG. 2 is a partially cutaway front view thereof.

In the figure, 1 is a concrete floor cleaner, and 2 is its dustproof case. Dustproof case 2 is motor 3
It is equipped with wheels 4 that are driven by an electric motor, making it self-propelled, and a rubber skirt 6 is attached to the lower periphery to close the gap between it and the concrete floor 5, thereby preventing the dust inside the dust-proof case 2 from going outside. Prevents leakage. Note that if the floor cleaner 1 is a manual type, the motor 3 is not necessary.

Inside the dustproof case 2 are two hollow vertical shafts 9 which are interlocked and rotated by a drive motor 8 via a gear 7.
A rotating brush 10 is attached to each lower end of the shaft and rotates in contact with the concrete floor surface 5, and one end of a suction hose 12 is connected to the upper end of each hollow vertical shaft 9 via a swivel joint 11. The other end is connected to a vacuum dust suction machine 14 placed on the rear truck 13.

In addition, inside the dustproof case 2, there is a concrete floor surface 5.
A partition wall 15 defining a closed space is provided above the partition wall 15, and a suction hose 1 connected to another vacuum dust suction machine 16 mounted on the rear truck 13 is installed on the top of the partition wall 15.
The suction port 18 of 7 is opened, and a plurality of injection nozzles 21 facing the concrete floor 5 are provided at the bottom, which are connected via injection hoses 20 to an air compressor 19 placed on the rear truck 13. ing. The suction capacity of the vacuum dust extractor 16 is larger than the fume capacity of the air compressor 19.

The injection nozzle 21 sends the fume to the concrete floor surface 5.
The partition wall 15 is installed at a predetermined angle so that it hits the concrete floor 5 from the jet nozzle 21, and the wall surface is so that the steam jetted from the jet nozzle 21 is guided toward the suction port 18 at the top after hitting the concrete floor surface 5. It is sloped, and the lower periphery has a gap between it and the concrete floor surface 5.
A rubber skirt 22 is attached to close the space and keep the internal space of the partition wall airtight. 23 is rear truck 13
, a dustproof case 2 containing working parts such as the rotating brush 10, and a connecting rod.

The concrete floor cleaner 1 described above rotates a rotary brush 10 and also has vacuum dust suction machines 14 and 16.
Then, the air compressor 19 is operated, and the concrete floor surface 5 is moved by self-propulsion or manual push. Here, large dust and accumulated abrasive powder on the concrete floor 5 are swept away by a rotating brush 10, sucked into the hollow part of the hollow vertical shaft 9, and sent to a vacuum dust suction machine 14 through a suction hose 12. Dust is absorbed.

In addition, abrasive powder, laitance, etc. filled in small irregularities and holes on the concrete floor surface 5 should be removed from the partition wall 15.
The fumes are injected obliquely from the injection nozzle 21 inside the concrete floor 5 to the concrete floor surface 5, and are blown up from the irregularities and holes, guided to the sloped wall surface of the partition wall 15 and ascended, and then passed through the suction port 18 to the suction hose 17. The dust is sucked into the vacuum dust extractor 16 through the rotating brush 10 and the spray nozzle 2.
1, the cleaning is completed and efficient.

In the above embodiment, a towed type was shown in which the dustproof case 2 and the trolley 13 on which the vacuum dust suction machines 14, 16 and the air compressor 19 were mounted were separated. The rotating brush 10 and the partition wall 15 may be placed in the same dust-proof case 2 as an integrated type. It is also possible to use a separate type in which each is provided in a separate dustproof case.

[Effect of idea]

As explained above, according to the present invention, a rotating brush connected to a dust suction device, a closed space defined on a concrete floor surface, and a suction port connected to another dust suction device formed in the inner space of the closed space are provided. and connected to the air compressor,
Since a partition wall equipped with a spray nozzle facing the concrete floor is installed inside a movable dustproof case, the cooperative action of the rotating brush and the spray nozzle can remove large debris on the concrete floor. The abrasive powder and laitance that have accumulated and filled in small irregularities and holes are completely and extremely efficiently cleaned, and the floor surface after painting or tiling work that is caused by incomplete cleaning is completely cleaned. Problems such as peeling are solved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway side view of a concrete floor cleaner according to the present invention, and FIG. 2 is a partially cutaway front view thereof. 1... Concrete floor cleaner, 2... Dustproof case, 10... Rotating brush, 14, 16... Vacuum dust suction machine, 15... Bulkhead, 18... Suction port, 19...
...Air compressor, 21...Injection nozzle.

Claims (1)

[Scope of utility model registration request] A rotating brush connected to a dust suction machine, a closed space defined on the concrete floor surface, a suction port connected to the above-mentioned and another dust suction machine in the inner space, and an air compressor connected to the concrete floor. A concrete floor cleaner characterized in that a partition wall provided with a spray nozzle facing the surface is provided within a movable dustproof case.