KR200343904Y1 - Apparatus for connecting suction pipe to paper filter of a vacuum cleaner - Google Patents

Abstract

It is a suction pipe connection device of a vacuum cleaner that connects a suction pipe that guides air containing foreign substances to the dust filter and a dust filter that removes foreign substances in the air sucked through the suction pipe. The disclosed suction pipe connecting device includes a receiving part accommodating an end of the suction pipe and an insertion part inserted into the suction hole formed in the support plate of the dust filter, the connection pipe being fixed to the bottom surface of the cleaner body; A slider coupled to the outer periphery of the insertion part of the connecting pipe so as to be slidably moved, the lower surface of the slider being in close contact with the periphery of the suction hole; And a spring for elastically supporting the slider toward the dust filter side. The lower surface of the slider is attached with a packing for improving the adhesion and airtightness to the dust filter. According to this, when the cover is closed or opened, the lower end of the slider is in close contact with the suction hole of the dust filter and the insertion hole of the connection pipe is inserted into or removed from the suction hole while supporting the dust filter not to flow. Therefore, a gap does not occur between the connecting device and the insertion hole, thereby preventing the suction force from being lowered.

Description

Apparatus for connecting suction pipe to paper filter of a vacuum cleaner}

The present invention relates to a vacuum cleaner that collects foreign matter using the suction negative pressure of the fan motor, and in particular, a connection connecting the suction pipe to the dust filter to prevent the dust filter from flowing when the cover is opened or closed. Relates to a device.

Generally, the vacuum cleaner includes a cleaner body 10 and a suction pipe 20 as shown in FIG. 1. A dust collecting chamber 11 in which a dust filter 30 is installed is provided at the front of the cleaner body 10, and a fan motor (not shown) is installed at the rear of the cleaner body 10. The upper part of the dust collecting chamber 11 of the body 10 becomes the cover 13 which opens and closes by rotation. The suction pipe 20 has a structure in which a plurality of pipes 21 and a flexible hose 22 are detachably connected, and a suction brush 23 is attached to the front end thereof. Reference numeral 14 is a wheel for moving the cleaner.

As shown in FIG. 2, the dust filter 30 includes a paper bag 34 having one side opened and a support plate 32 installed at an opening of the paper bag 34, and a dust collecting chamber 11 of the cleaner body 10. The support plate 32 is fitted to and supported by the guide 11a formed on one side, and is attached to the dust collecting chamber 11. An insertion hole is formed in the center of the support plate 32, and an packing 33 made of an elastic material such as rubber is attached along the inner circumference of the insertion hole. The dust filter 30 is connected to the suction pipe 20 through a connector 13a provided on the lower surface of the cover 13 of the dust collecting chamber 11.

The connector 13a is a tubular member consisting of an upper receiving portion and a lower inserting portion, and the upper end of the receiving portion is fixed to the lower side of the through hole formed on one side of the cover 13. The rear end of the suction pipe 20 is inserted into the receiving portion through the through hole of the cover 13, and is supported by separate supporting means (not shown) formed on the outer circumferential surface thereof. Then, the insertion portion is inserted into the insertion hole of the dust filter 30 in a state in which the cover 13 is closed to communicate with the inside of the paper bag 34. When the insertion portion is inserted into the insertion hole, the packing 33 is in close contact with the outer peripheral surface of the insertion portion to maintain airtightness.

As such, when the fan motor is operated while the suction pipe 20 and the dust filter 30 are connected through the connector 13a, the suction brush 23 of the suction pipe 20 is generated by the negative pressure generated inside the dust collecting chamber 11. Air positioned in front of the air is sucked into the suction pipe 20 and flows into the dust filter 30 through the connector 13a. The air introduced into the dust filter 30 passes through the paper bag 34 again and is discharged through the exhaust port 15 formed at the rear of the cleaner body 10 through the fan motor, and passes through the paper bag 34. Foreign matter such as dust contained in the air is filtered out of the paper bag (34). This is the cleaning process.

However, the conventional suction pipe connector has the following disadvantages.

That is, since the cover of the vacuum cleaner is opened and closed in a manner rotated about the rear side thereof, the suction pipe connector is moved little by little in the vertical direction as well as the vertical direction when the cover is opened and closed. As a result, when the cover is opened and closed, the connector is interfered with the packing of the dust filter by the front and rear movement of the connector, and the support of the dust filter gradually flows in the front and rear directions. If this process is repeated and the flow range of the support of the dust filter is increased, a gap is generated between the connector and the packing of the dust filter while the cover is closed, and the suction force of the cleaner is reduced due to the decrease in the airtightness between the connector and the dust filter. .

In addition, such a conventional vacuum cleaner is disposed of together with the replacement of the dust filter because the packing that maintains the airtightness between the connector and the dust filter is attached to the support of the dust filter, resulting in waste of resources and increase in price of the dust filter. There was a downside.

The present invention has been made in view of the above, it is an object of the present invention to provide a suction pipe connection device of the vacuum cleaner that can prevent the dust filter from flowing when opening and closing the cover to prevent the suction force is lowered.

Another object of the present invention is to provide a suction pipe connection device for a vacuum cleaner that can prevent the waste of resources and the price increase of the dust filter by repeatedly using a packing that maintains airtightness with the insertion hole of the dust filter.

1 is a perspective view showing a general vacuum cleaner.

Figure 2 is a cross-sectional view showing a connection structure of the suction pipe and the dust filter of the general vacuum cleaner shown in FIG.

Figure 3 is a cross-sectional view showing a suction pipe connection device of the vacuum cleaner according to an embodiment of the present invention.

Figure 4a is a cross-sectional view showing the action of the suction pipe connection device of the vacuum cleaner according to an embodiment of the present invention, the cover of the vacuum cleaner.

Figure 4b is a cross-sectional view showing the action of the suction pipe connection device of the vacuum cleaner according to an embodiment of the present invention, the cover of the cleaner half open.

Figure 4c is a cross-sectional view showing the action of the suction pipe connection device of the vacuum cleaner according to an embodiment of the present invention, the cover of the cleaner is completely open.

* Description of the symbols for the main parts of the drawings *

101; Cover 104; Dust filter

105; Support plate 105a of the dust filter; Insertion hole

111; Connector 112; Receptacle

113; Insertion section 114; Guide

115; Slider 116; spring

117; Support plate for the slider 118; packing

The suction pipe connection device of the vacuum cleaner according to the present invention for achieving the above object, by connecting a suction filter for guiding the air containing the foreign matter to the dust filter and a dust filter for removing the foreign matter in the air sucked through the suction pipe, A connection tube having an accommodation portion accommodating an end of the suction tube and an insertion portion inserted into the suction hole formed in the support plate of the dust filter, the tube being fixed to the bottom surface of the cleaner body; A slider coupled to the outer periphery of the insertion part of the connecting pipe so as to be slidably moved, the lower surface of the slider being in close contact with the periphery of the suction hole; And a spring for elastically supporting the slider toward the dust filter side.

The suction pipe connecting device according to the present invention is inserted or inserted into / from the suction hole with the lower surface of the slider being in close contact with the suction hole of the dust filter when the cover is closed or opened so that the dust filter does not flow. Departure.

The lower surface of the slider is attached with a packing for improving the adhesion and airtightness to the dust filter. In addition, the diameter of the insertion portion coincides with the diameter of the suction hole, and preferably has a shape in which the diameter gradually narrows downward.

According to this, the insertion part of the connection pipe is inserted into or removed from the insertion hole while the slider elastically supported downward by the spring is in close contact with the support plate and fixed to prevent the support plate from flowing. Therefore, a gap does not occur between the connecting device and the insertion hole, thereby preventing the suction force from being lowered.

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

3 to 4c illustrate a suction pipe connection device of a vacuum cleaner according to an embodiment of the present invention. 3 is a cross-sectional view showing the configuration of an embodiment of the present invention, Figures 4a and 4c is a cross-sectional view showing a state of use of the present invention, respectively.

As shown, the suction pipe connecting device according to an embodiment of the present invention comprises a connecting pipe 111, the slider 115, and a spring 116.

The connecting pipe 111 is a tubular member for connecting the suction pipe (not shown) and the dust filter 104 and is integrally formed under the through hole 101a of the cover 101. The connecting pipe 111 is composed of an accommodating part 112 for accommodating the rear end of the suction pipe and an inserting part 113 inserted into the insertion hole 105a formed in the support plate 105 of the dust filter 104. The insertion portion 113 has a tapered shape in which the diameter thereof becomes smaller from the upper side to the lower side, and the diameter of the position corresponding to the height of the insertion hole 105a in the state where the cover 101 is closed is that of the insertion hole 105a. It is equal to the diameter.

The cylindrical guide portion 114 extends downward from the lower end of the housing portion 112 by a predetermined length. A slider 115 having a support plate 117 having a hole through which the insertion portion of the connecting tube passes through the guide portion 114 in the shape of a cylindrical tube is slidably moved up and down. On the lower surface of the support plate 117 of the slider 115, an packing 118 made of an elastic material such as rubber, which is in close contact with the circumference of the insertion hole 105a of the support plate 105 of the dust filter 104, is attached. And, at the lower end of the guide portion 114 and the upper end of the slider 115, locking jaws 114a and 115a are formed to prevent the slider 115 from being separated.

The spring 116 is installed inside the slider 115 to be positioned around the insertion portion 113 of the connecting pipe 111. Both ends of the spring 116 are supported by the lower surface of the receiving portion 112 of the connecting pipe 111 and the supporting plate 117 of the slider 115, respectively.

The action of the suction pipe connection device according to an embodiment of the present invention having such a configuration is as follows.

First, the state in which the cover 101 is closed is shown in FIG. 4A. According to FIG. 4A, the insertion portion 113 of the connecting pipe 111 is inserted into the paper bag 106 through the insertion hole 105a formed in the support plate 105 of the dust filter 104. The slider 115 has a packing 118 attached to the support plate 117 of the slider 115 in close contact with the insertion hole 105a of the support plate 105 of the dust filter 104 to secure the airtightness between the connecting device and the dust filter 104. Keeping up. As such, when the cover 101 is closed, the distance between the receiving portion 112 of the connecting pipe 111 and the slider 115 is minimized so that the spring 116 elastically supports the slider 115 downward in a compressed state. Doing. Then, the suction pipe is inserted into the receiving portion 112 of the connecting pipe 111.

On the other hand, when opening the cover 101, the suction pipe is separated from the receiving portion 112 of the connecting pipe 111, and the cover 101 is rotated upward. As the cover 101 is rotated upward, the connecting pipe 111 fixed to the lower surface of the cover 101 is also moved upward, and the insertion part 113 of the connecting pipe 111 is inserted into the dust filter 104. It is separated from 105a (FIG. 4B). However, since the slider 115 is continuously supported downward by the elasticity of the spring 116, the packing 118 attached to the support plate 117 is in close contact with the support plate 105 of the dust filter 104. maintain. Accordingly, the support plate 105 of the dust filter 104 is also kept in a fixed state without flowing.

Subsequently, when the cover 101 is rotated upward and the insertion portion 113 is completely removed from the insertion hole 105a of the dust filter 104, the slider 115 is lowermost, that is, the accommodation portion of the connecting pipe 111. The state is moved farthest from 112. In this state, when the cover 101 is further moved upward, the support plate 117 of the slider 115 is moved away from the support plate 105 together with the connecting pipe 111. However, at this time, since the insertion portion 113 of the connecting pipe 111 is already separated from the insertion hole 105a, the dust filter 104 is maintained in a fixed state without any interference. Thus, the state in which the cover 101 is fully opened is shown in Fig. 4C.

When the cover 101 is closed, the reverse process is performed. That is, when the cover 101 descends, the lower surface of the slider 115 first comes into close contact with the support plate 105 of the dust filter 104. Even if the cover 101 is continuously lowered, the slider 115 is in close contact with the support plate 105 and thus no longer lowers. However, since the connecting pipe 111 continues to descend, the spring 116 is compressed and presses the slider 115 against the support plate 105. Thus, since the insertion part 113 of the connection pipe 111 is inserted into the insertion hole 105a of the dust filter 104 in the state in which the support plate 105 was pressed by the slider 115, the dust filter 104 is It does not flow during insertion of the insertion portion 113 and remains fixed. In the state where the cover 101 is completely closed, as shown in FIG. 4A, the packing 118 attached to the lower surface of the slider 115 is pressed by the elasticity of the spring 116 while being closely attached to the support plate 105, thereby connecting the dust and the connecting device. The airtightness between the filters 104 is maintained. Therefore, a phenomenon in which suction power is lowered as in the prior art does not occur.

In the suction pipe connection device according to the present invention as described above, since the insertion portion of the connection pipe is inserted into or removed from the insertion hole in a state in which the slider which is elastically supported downward by the spring is in close contact with the support plate and fixed so that the support plate does not flow. As described above, there is an advantage of preventing a phenomenon in which suction power is lowered because a gap is not generated between the connection device and the insertion hole. In addition, since the slider is continuously pressed downward by the spring even when the cover is completely closed, there is an advantage that the airtightness between the connecting device and the dust filter can be improved and the suction force can be improved.

In addition, according to the present invention, since a packing for maintaining the airtightness between the connecting device and the dust filter is attached to the lower surface of the slider, it can be used continuously regardless of whether the dust filter is replaced. Therefore, there is also an advantage that can reduce the waste of resources and reduce the price of the dust filter.

In the above, the present invention has been shown and described only with respect to one particular preferred embodiment. However, the present invention is not limited to the above-described embodiment, and those skilled in the art to which the present invention belongs, various changes without departing from the gist of the present invention described in the scope of the utility model registration claim Could be done.

Claims (4)

Connecting a suction pipe for guiding air containing foreign matter to the dust filter and a dust filter for removing foreign matter from the air sucked through the suction pipe, the receiving portion accommodating the end of the suction pipe, and formed in the support plate of the dust filter A connection pipe having an insertion portion inserted into the suction hole and fixed to the bottom surface of the cleaner body; A slider coupled to the outer circumference of the insertion pipe so as to be slidably moved, the lower surface of the slider being in close contact with the circumference of the suction hole; And a spring for elastically supporting the slider toward the dust filter side; When the cover is closed or opened, the insertion hole of the connection pipe is inserted into or removed from the suction hole while the lower surface of the slider is in close contact with the suction hole of the dust filter to support the dust filter not to flow. The suction pipe connection device of the vacuum cleaner. The suction pipe connection device of claim 1, wherein a packing is attached to a lower surface of the slider to improve adhesion and airtightness to the dust filter. The suction pipe connection device of claim 1, wherein the diameter of the insertion portion corresponds to the diameter of the suction hole. The suction pipe connecting apparatus of claim 1, wherein the insertion part has a shape in which the diameter thereof becomes gradually narrower.