KR19990069392A - Suction device of vacuum cleaner - Google Patents

Abstract

The present invention relates to a suction device of a vacuum cleaner, the suction device 100 coupled to the front portion of the communication device 200 is composed of a lower cover 110, the upper cover 120 and the connecting pipe 130.

Here, a plurality of air inlet brackets 400 having air inlet holes 410 are provided at predetermined portions of the rear side of the upper cover 120, and the connection pipes installed in the upper / lower covers 120 and 110. Both ends of the 130 are provided with a damper 500 consisting of a support plate bracket 510 and the operating bracket 520 and the spring 530 and the cover bracket 540, the damper 500 is installed connection pipe An air suction plate 600 having a plurality of opening holes 610 is installed at the hollow hole 131 of 130.

Accordingly, even when the sheet is stuck to the lower cover 110 when the thin plate portion such as vinyl paper is cleaned, the suction port 112 is sealed to generate a vacuum pressure in the suction device 100. Opened by pneumatic pressure so that the outside air is introduced into the suction device 100, the lowering of the suction force of the suction device 100 is prevented.

Description

Suction device of vacuum cleaner

The present invention relates to a vacuum cleaner that sucks air instantaneously through a mechanical means and cleans dust or garbage, and in particular, a damper is installed inside the connection pipe, which is generated in the suction device during the cleaning operation. A suction device of a vacuum cleaner, wherein the vacuum pressure is to be removed due to the operation of the damper.

In general, the main components of the vacuum cleaner as shown in Figure 1, the suction device 100 to suck the dust or foreign matter by the suction force of the air, and the dust collected by the suction device 100 to collect It is composed of a communication device 200 to be smoothly transported to the place, and the main body 300 to collect the dust moved by the communication device 200.

Here, the suction device 100 is shown in Figures 1 and 2, and the plurality of transfer wheels 111 are installed, as well as the lower cover 110, the suction port 112 is installed so that the foreign matter is sucked in the cleaning portion and In addition, the upper cover 120 to be coupled to the upper portion of the lower cover, and a hollow hole (not shown) is provided inside the one end is installed in the upper / lower cover 120, 110 The other end portion is composed of a connecting pipe 130 to be connected to the communication means 200.

In addition, the communication device 200, the first extension tube 210 and the second extension tube 220 of the plastic material coupled to communicate with the hollow portion of the connecting tube 130 and the extension tube 210, 220 Combined with the handle of the power switch (On) / off (OFF) of the power supply and the wind speed control switch 230 for controlling the strength and weakness of the wind speed, and the handle adjustment unit 230 The hose 240 is coupled to communicate with, of course, naturally made, and the connection pipe 250 is integrally coupled with the hose 240 is connected to the main body 300.

In addition, the main body 300 includes a connection port 310 to which the end of the connection pipe 250 is connected, a dust indicator 320 to display the amount of dust collected, and two transport units installed at both sides. The wheel 330, the carrying handle 340 to be easily carried by the operator for the movement of the work place, and a power plug 350 to supply power.

Therefore, when the operator applies power to the main body 300 using the power plug 350 and turns on the power switch, the motor (not shown) installed in the main body rotates at high speed and is strong. Suction power is generated.

At this time, the outside air is sucked into the suction device 100 by the suction force of the motor, the external air introduced into the suction device 100 is introduced into the body 300 through the communication device 200 Of course, the air introduced into the main body 300 circulates inside the main body 300 and is discharged to the outside.

On the other hand, dust and foreign matters of the cleaning part is sucked into the suction device 100 together with the external air, as well as flow into the main body 300 through the communication device 200, as well as to the main body 300 Inflowed dust and foreign matter are collected by the dust bag installed in the dust collecting chamber.

At this time, the odor generated in the dust collecting chamber and the smell of carbon (carbon) powder generated in the motor when dust and foreign matters are collected in the dust bag are removed by a filter installed in the main body 300.

However, when cleaning the thin plate portion such as vinyl paper using the conventional suction device 100 as described above, the sheet plate is attached to the lower cover 120 of the suction device 100 by the suction force of the motor, of course. The suction port 122 of the lower cover 120 is sealed by the jangpan, accordingly the vacuum pressure is generated in the suction device 100, the suction force of the suction device 100 due to the vacuum pressure There was a problem of this deterioration.

Accordingly, the present invention has been made to solve the above problems, the damper is elastically actuated by the spring force to be selectively connected to the outside of the suction device in a predetermined portion of the connection pipe installed in the suction device, vinyl When the sheet is stuck to the lower cover and the suction port is closed to generate a vacuum pressure in the suction device, the damper is operated to allow external air to flow into the suction device. It is an object of the present invention to provide a suction device of a vacuum cleaner which is to prevent the suction force is lowered.

The present invention for achieving the above object, a plurality of transfer wheels are installed, as well as the lower cover is provided with a suction port to suck the foreign matter in the cleaning portion, the upper cover to be coupled to the upper side of the lower cover, and the inside In the suction device of the vacuum cleaner comprising a hollow hole and the one end is installed in the upper / lower cover and the other end is connected to the communication means, the suction device of the vacuum cleaner in the upper predetermined portion of the rear cover A plurality of air inlet brackets are provided with air inlet holes to communicate the inside and the outside of the cover, and dampers are installed at both ends of the connection pipes installed in the upper and lower covers to elastically operate by vacuum pressure. In the hollow hole portion of the connecting pipe in which the damper is installed, a plurality of air holes are sucked in by the damper opening An opening hole is provided in the air intake plate structure.

Here, the damper is a support plate bracket having a predetermined length of the mounting protrusions in the inner central portion, an operating bracket formed with a predetermined size of the mounting groove in the lower middle portion, and the operating bracket is elastic up and down relative to the support plate bracket One side end portion is coupled to the mounting projection of the support plate bracket, as well as the other end portion is a spring to be coupled in the installation groove of the operation bracket, and a coupling groove of a predetermined size to be coupled to the support plate bracket is formed inside the upper side The cover bracket is formed with a through hole formed to guide the flow of air.

1 is a perspective view for explaining a vacuum cleaner generally used;

Figure 2 is a bottom view of the suction device used in Figure 1,

Figure 3 is a rear view of the suction device formed in the upper cover air inlet hole according to the present invention,

4 is a perspective view of a connection pipe in which a damper is installed according to the present invention;

5 is a perspective view of a connecting pipe formed with an opening hole according to the present invention;

6 is an exploded perspective view of a damper according to the present invention;

Figure 7 is an internal perspective view for explaining the operating state of the suction device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100-Suction unit 110-Lower cover

111-Wheel 112-Inlet

120-Top Cover 130-Connector

131-Hollow Hole 400-Air Inlet Bracket

410-Air inlet hole 500-Damper

510-Base Bracket 511-Mounting Projection

520-Mounting Bracket 521-Mounting Groove

530-Spring 540-Cover Bracket

541-Coupling Groove 542-Through Hole

600-Air Suction Plate 610-Opening Hole

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

3 is a rear view of the suction device in which the air inlet hole is formed in the upper cover according to the present invention, and the description thereof will be omitted while attaching the same reference numerals to the same parts as the conventional structure.

That is, since the general description of the vacuum cleaner is the same as the conventional structure described above with reference to FIG. 1, the description thereof will be omitted and only the suction device 100 of the present invention will be described in detail below.

As shown in FIG. 1, the suction device 300 of the present invention is coupled to the front of the communication device 200 to suck dust and foreign matters from the cleaning part.

That is, the suction device 100, as shown in Figures 1 and 2, and the plurality of transfer wheels 111 are installed, as well as the lower cover 110, the suction port 112 is installed so that the foreign matter is sucked in the cleaning portion and In addition, the upper cover 120 to be coupled to the upper portion of the lower cover, and a hollow hole 131 (shown in FIG. 5) is provided inside the one end is the upper / lower cover 120, 110 It is installed in the other end is composed of a connecting pipe 130 to be connected to the communication means 200.

Here, as shown in Figure 3, the predetermined portion of the rear side of the upper cover 120, a plurality of air inlet bracket 400 formed with an air inlet hole 410 so that the inside and the outside of the upper cover 120 is in communication ) Is installed.

And, both ends of the connecting pipe 130 installed in the upper / lower cover 120, 110, as shown in Figure 4, the vacuum pressure generated in the upper / lower cover 120, 110 The damper 500 is elastically actuated by the installation.

In addition, as shown in FIG. 5, the hollow hole 131 of the connection pipe 130 in which the damper 500 is installed, the external air of the suction device 100 is opened by opening the damper 500. The air suction plate 600 is provided with a plurality of opening holes 610 to be sucked into the lower cover 120 and 110.

Meanwhile, as shown in FIG. 6, the damper 500 includes a support plate bracket 510 having a predetermined length installation protrusion 511 at an inner central portion thereof, and an installation groove 521 having a predetermined size at a lower central portion thereof. One side end is coupled to the installation protrusion 511 of the support plate bracket 510 so that the operation bracket 520 and the operation bracket 520 is elastically up and down based on the support plate bracket 510, as well as the other end. The spring 530 is coupled to the installation groove 521 of the operating bracket 520, and the coupling groove 541 of a predetermined size to be coupled to the support plate bracket 510 is formed therein, and the upper side has air. The cover bracket 540 has a through hole 542 formed to guide the flow of the gas.

Hereinafter, the operation of the suction device 100 according to the present invention will be described in detail.

First, when an operator applies power to the main body 300 using the power plug 350 shown in FIG. 1 and turns on the power switch, the motor installed in the main body 300 rotates at a high speed. In addition to the strong suction force is generated, the dust and foreign matter of the outside air and the cleaning portion to the suction force of the motor is sucked into the suction device 100 is introduced into the main body 300 through the communication device 200.

In addition, the dust and foreign substances introduced into the main body 300 are collected by the dust bag installed in the dust collecting chamber, and the smell of the odor generated in the dust collecting chamber and the carbon (carbon) powder generated by the motor is the main body 300. Are all deodorized by the filter installed in the

On the other hand, if the cleaning portion is a thin plate portion such as vinyl paper, the plate is stuck to the lower cover 110 by the strong suction force of the motor so that the suction port 112 of the suction device 100 shown in FIG. In this case, the vacuum pressure is generated by the suction force of the motor in the suction device 100.

When the vacuum pressure generated in the suction device 100 rises to a pressure that lowers the suction force of the suction device 100, as shown in FIGS. 6 and 7, a connection pipe in the suction device 100 is used. The operating bracket 520 of the damper 500 installed in the 130 is elastically moved to the support plate bracket 510 by the vacuum pressure in the suction device 100.

At this time, when the operation bracket 520 is elastically moved to the support plate bracket 510 by the vacuum pressure, the outside air is sucked into the air inlet hole 410 of the air inlet bracket 400 installed in the upper cover 120 The inside of the device 100 is introduced, and the outside air introduced into the suction device 100 is introduced into the through hole 542 of the cover bracket 540 of the damper 500.

In addition, the air introduced into the through hole 542 of the cover bracket 540 flows through a gap in the damper 500 to open the opening 610 of the air suction plate 600 installed in the connection pipe 130. Through the suction device 100 is to be sucked into the interior.

On the other hand, when the external air flows into the suction device 100, the vacuum pressure in the suction device 100 is gradually changed to atmospheric pressure, and at the same time stuck to the lower cover 110 of the suction device 100 The encapsulation plate sealing the inlet 112 is gradually dropped from the inlet 112.

Therefore, the suction device 100 can be easily cleaned without lowering the suction force.

As described above, according to the present invention, both ends of the connection pipe installed in the suction device are provided with dampers which are elastically operated by the vacuum pressure generated in the suction device to introduce external air. When the sheet is attached to the lower cover and the suction port is closed and a vacuum pressure is generated in the suction device, the damper is opened by the vacuum pressure so that external air flows into the suction device. Not only is the suction force of the suction device not lowered, thereby increasing the merchandise.

Claims (2)

A plurality of transfer wheels are installed, as well as a lower cover provided with an inlet for suction of foreign matters from the cleaning part, an upper cover to be coupled to an upper part of the lower cover, and a hollow hole therein, and one end of the upper part In the suction device of the vacuum cleaner which is installed in the lower cover and the other end portion is connected to the communication means, A plurality of air inlet brackets having air inlet holes are installed at predetermined rear portions of the upper cover, and dampers are installed at both ends of the connection pipes installed in the upper and lower covers, and hollows of the connection pipes in which the dampers are installed. The suction part of the vacuum cleaner, characterized in that the air suction plate is formed in the hole portion formed with a plurality of opening holes. 2. The damper of claim 1, wherein the damper comprises: a support plate bracket having a predetermined length mounting protrusion at an inner central portion thereof, an operation bracket having a predetermined size mounting groove formed at a lower central portion thereof, and one end of which is provided at an installation protrusion of the support plate bracket. As well as being coupled to the other end is composed of a spring coupled to the elastically actuated in the installation groove of the operation bracket, a coupling groove of a predetermined size to be coupled to the support plate bracket and a cover bracket equipped with a through hole to guide the flow of air. Suction device of a vacuum cleaner, characterized in that.