FI115121B - cleaning device - Google Patents

Description

115121

CLEANING EQUIPMENT

The present invention relates to a cleaning device according to the preamble of claim 1.

Today, air duct cleaning devices consist of a body with wheels at the back and fixed feet at the front to hold the body in place during work. The frame consists of two most commonly rectangular tubular frames interconnected by intermediate pipes. The tubing housings form the sides of the scrubber, with a rotatably mounted spool between them, around which the drive shaft of the scrub brush is stored. The drive shaft is used to rotate the scrub brush, the rotary element being electric, pneumatic and hydraulic motors. The frame has a guide for the drive shaft which guides the drive shaft on and off the coil. The device is operated by pulling the drive shaft out of the bell when the cleaning brush is pushed into the air duct to be cleaned, and during the brush return movement, the drive shaft is rewound to the reel. In current cleaning devices, the rotational force of the rotating member is transmitted to the drive shaft by means of an angular gear. According to another solution, the pivoting member is:: fixed in the coil and rotating with the coil, the drive shaft is directly attached in the rotating member: in the rotary member.

5 »... * The downside of current cleaning equipment is that when used with an angle '. · The gear becomes expensive because of the expensive gear, and the equipment is expensive. Angle gears also limit the speed that can be used because they are not manufactured for multiple rev ranges. Attaching the rotating member (motor) to the coil is not only difficult and expensive and difficult for the motor; · 'Export eg electricity, compressed air, because the motor rotates have to use expensive so-called.

:: rotary connectors.

It is an object of the present invention to provide a cleaning device, the manufacture of which is advantageous.

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The cleaning device according to the invention provides a decisive improvement in the above-mentioned disadvantages and the above object is achieved. To accomplish this, the cleaning device according to the invention is characterized by what is stated in the characterizing parts of the claims.

One of the main advantages of the invention is that the inventive cleaning device is advantageous to manufacture, is maintenance-free, has few parts and is therefore reliable. The invented scrubber can be fabricated to a freely selected rotation area, and the rotation of the scrub brush can be easily modified. It is clear that the use of the invented cleaning device achieves great cost savings.

The invention will now be described in detail with reference to the accompanying figures.

Figure 1 is a side elevational view of a cleaning device according to the invention.

Fig. 2 shows a cleaning device according to Fig. 1, viewed from the vertical.

• »» ::: The figures show the following parts and locations of the cleaner. Frame 1 with · side member 1a in which support member 1aa for rotation head 3e of drive shaft 3, wheel Ib, support foot • · »* ... * le and guide Id. Coil 2 therein bearing 2a. Drive shaft 3 with rotation shaft 3a, • · ·:. * shell 3b, support member 3c, mounting member 3d and rotating head 3e. Rotating member 4 therein • rotating member 4a (motor), transmission member 4b consisting of pulleys 4ba and 4bb and belt 4bc. Cleaning brush 5.

* t »; The drive shaft 3 of the cleaning device in the figures consists of a rotary shaft 3a of known flexible metal. The shell 3b of the drive shaft 3 is known .. 'plastic or the like. The attachment of the cleaning brush 5 to the drive shaft is known in the art.

Bearing 2a of the cleaning device coil 2, by means of which the coil 2 is rotatably secured to the body 3, is known in the art. Rotary support rollers leaning on the periphery of the coil 2, which are rotatably attached to the body 1, may be used to support the bearing 2a of the coil 2, which is rotationally attached to the body 1, a technique which is currently used in several cleaning devices.

In the cleaning device of the present invention, the rotation end 3e of the drive shaft 3 is at the center of the reel 2. The rotation end 3e of the drive shaft 3 is parallel to the center of the reel 2. The rotator 4a of the cleaning brush 5 (most preferably an electric motor) is attached to the housing 1 and the rotation end 3e of the drive shaft 3 is parallel to the rotation axis of the rotor 4a, so that no gears are required.

The figures show how the rotation movement of the rotor 4a is transmitted to the rotation axis 3a of the drive shaft 3 by means of the transmission element 4b, the transmission element 4b being formed by the pulleys 4ba and 4bb and the belt 4bc. The pulley 4ba is secured to the shaft of the rotor 4a and the pulley 4bb is secured to rotation of the drive shaft 3 on the shaft 3a. The pulley 4bb can be rotatably supported on the side portion la of the body 1 using known bearing technology, whereby the pulley 4bb does not stress the rotation shaft 3a, the rotation shaft 3a can be secured to the pulley 4bb, e.g.

i> <.. The rotating end 3e of the drive shaft 3 flexes without spacers into the center of the coil 2: \ j.

The rotating end 3e of the drive shaft 3 is supported by a support member 3c on the drive shaft 3: and that the support member 3c is a flexible strong tube such as a metal tube used e.g. to support electric wires.

• · ,, / According to another solution not shown in the figures, the drive shaft 3 is inside the reel 2 ': the stronger part, e.g.

. FIG. The rotating end 3e of the drive shaft 3 rotates in the support member.

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All parts of the invented purifier can be made by known methods from known raw materials.

It will be apparent to one skilled in the art that the invention is not limited to the above alternatives, but that many modifications are possible within the scope of the inventive concept as defined by the appended claims. 1

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Claims (10)

115121 Cleaning device consisting of one or more chassis (1) used for internal cleaning of ventilation ducts, characterized in that the rotation end (3e) of the drive shaft (3) is at the center of the reel (2). A cleaning device according to claim 1, characterized in that the rotating end (3e) of the drive shaft (3) is parallel to the center of the reel (2). Cleaning device according to claim 1, characterized in that the rotator (4a) is attached to the body (I) and the rotation end (3e) of the drive shaft (3) is parallel to the rotation axis of the rotor (4a). Cleaning device according to Claim 1, characterized in that the rotational movement of the rotor (4a) to the rotary axis (3a) of the drive shaft (3) is transmitted by a transmission element (4b). A cleaning device according to claim 4, characterized in that: the transmission means (4b) consists of pulleys (4ba and 4bb) and a belt (4bc). •, | A cleaning device according to claim 1, characterized in that the rotating end (3e) of the drive shaft (3) is flexibly inserted into the center of the reel (2), without spacers. A cleaning device according to claim 1, characterized in that the rotation end (3e) of the drive shaft (3) is supported by a support member (3c) on the drive shaft * · (3) and that the support member (3c) is a flexible strong tube . * 1 t ·, · 8. A cleaning device according to claim 1, characterized in that '; the drive shaft (3) is stronger with the supported part inside the reel (2) e.g. |: the axis of rotation is of wire. Cleaning device according to Claim 1, characterized in that a supporting member (1a) is attached to the side part (1a) of the body (1) which supports the rotation end (3e) of the drive shaft (3). Cleaning device according to claim 9, characterized in that the rotation end (3e) of the drive shaft (3) rotates in the support member (1a). 115121