KR100386260B1 - Vacuum cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner, comprising: a casing for forming a receiving space therein; A suction fan accommodated in the casing and generating suction force; An extension tube having one end coupled to communicate with the casing; A suction head formed at the other end of the extension tube to suck fluid; A dust bag disposed on the suction side of the suction fan in the casing to allow the passage of the fluid sucked through the suction head and to block foreign substances and collect the foreign substances therein; An exhaust circulation tube having one end coupled to the discharge side of the suction fan and the other end extending to the suction side of the suction fan to circulate at least a portion of the fluid discharged from the suction fan; An ejector nozzle portion formed at an end of the exhaust circulation tube to allow the fluid circulated through the exhaust circulation tube to be injected at a relatively high speed, and one end of which is disposed on the outlet side of the ejector nozzle portion and the other end is in communication with the outside of the casing; An ejector having a first ejector suction port formed therein and an ejector chamber part forming a relatively low pressure space around the ejector nozzle part; It is characterized in that it comprises an ejector suction tube formed of a tubular member having a flexible end is detachably coupled to the first ejector suction port. Thereby, the vacuum cleaner which can clean mutually different areas simultaneously can shorten a cleaning time and can also make cleaning easy.

Description

Vacuum Cleaner {VACUUM CLEANER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner that can clean different areas at the same time, which not only shortens the cleaning time but also facilitates cleaning.

1 is a perspective view of a conventional vacuum cleaner, and FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1. As shown in these figures, the vacuum cleaner, the casing 111 to form a receiving space therein, the suction fan 131 accommodated in the casing 111 to generate a suction force, and the suction fan 131 Is disposed on the suction side of the dust bag 133 for blocking and collecting the foreign matter sucked with the fluid.

A pair of wheels 113 are rotatably coupled to both side regions of the casing 111, and the inner space of the casing 111 is a dust bag 133, a suction fan 131, and a power cord. A partition bag 115 is partitioned into a dust bag accommodation space 114a, a suction fan accommodation space 114b, and a cord reel accommodation space 114c so as to separate the cord reel 135 to which the cord 137 is wound. . A suction hole 116 is formed in the partition wall 115 so that the suction fan 131 can suck the fluid from the dust bag permeable space 114a.

A coupling hole 117 is formed in the front region of the casing 111 so that one end of the extension tube 119 having flexibility is coupled, and the fluid discharged from the suction fan 131 is discharged to the outside in the rear region. The outlet 127 is formed to be.

Meanwhile, the extension pipe 119 includes a corrugated pipe 120 having flexibility and a plurality of non-corrugated pipes 121 that are detachably coupled to each other, and have a non-corrugated pipe 121 connected to each other in communication with the corrugated pipe 120. ), A handle 123 is formed to facilitate handling. A suction head 125 is coupled to the non-corrugated pipe 121 disposed upstream along the flow direction of the fluid so as to suck the fluid and foreign matter.

By such a configuration, when power is applied to the suction fan 131, the fluid inside the dust bag accommodation space 114a is sucked through the suction hole 116. Accordingly, the inside of the dust bag accommodation space (114a) is relatively low in pressure, the fluid and foreign matter is sucked from the outside through the suction head 125.

The foreign matter sucked through the suction head 125 is introduced into the dust bag 133 through the extension pipe 119 and the outflow is blocked to collect the inside of the dust bag 133, and the fluid collects the dust bag 133. Passes through and is sucked into the suction fan 131 through the suction hole 116. The fluid discharged from the suction fan 131 is filtered while passing through the filter member 128 and discharged to the outside of the casing 111.

By the way, in the conventional vacuum cleaner, when cleaning the bottom surface such as the floor, the extension pipe 119 in a state in which the suction head 125 formed at the end of the extension pipe 119 is in contact with the bottom surface to be cleaned. Grab the handle 123 formed at the other end of the suction head 125 while flowing in the front and rear direction with respect to the floor to suck the foreign matter on the bottom surface is not provided with a separate suction means, cleaning time There is a limit to shortening.

In addition, the suction head 125 is formed to have a rectangular shape having a predetermined size has a problem that the foreign matter in the corners and gaps is difficult to access the suction head 125 is difficult to remove it.

Accordingly, it is an object of the present invention to provide a vacuum cleaner that can clean different areas at the same time, which can shorten the cleaning time and facilitate the cleaning.

1 is a perspective view of a conventional vacuum cleaner,

2 is a cross-sectional view taken along the line II-II of FIG. 1;

3 is a perspective view of a vacuum cleaner according to an embodiment of the present invention,

4 is an enlarged plan sectional view taken along line IV-IV of FIG. 3;

5 is a cross-sectional view taken along the line VV of FIG. 4;

6 is an enlarged view illustrating main parts of FIG. 5.

Explanation of symbols on the main parts of the drawings

11 casing 15 outlet

16 exhaust filter 24 suction pipe connection

26; Blocking member 28: second ejector intake

29: second inlet opening and closing member 30: suction hole

32: suction nozzle 34: second ejector suction pipe

35: suction fan 37: extension tube

41: suction head 43: dust bag

45: exhaust circulation pipe 50: ejector

51: ejector nozzle portion 53: ejector chamber portion

55: first ejector suction port 57: expansion tube

59: first ejector suction pipe 60: suction nozzle

According to the present invention, the object and the casing to form a receiving space therein; A suction fan accommodated in the casing and generating a suction force so that fluid may be sucked from the outside of the casing; An extension pipe formed of a tubular member having at least some sections flexible and having one end coupled to communicate with the casing; A suction head formed at the other end of the extension tube to suck fluid; A dust bag disposed on the suction side of the suction fan in the casing to allow the passage of the fluid sucked through the suction head and to block foreign substances and collect the foreign substances therein; An exhaust circulation tube having one end coupled to the discharge side of the suction fan and the other end extending to the suction side of the suction fan to circulate at least a portion of the fluid discharged from the suction fan; An ejector nozzle portion formed at an end of the exhaust circulation tube to allow the fluid circulated through the exhaust circulation tube to be injected at a relatively high speed, and one end of which is disposed on the outlet side of the ejector nozzle portion and the other end is in communication with the outside of the casing; An ejector having a first ejector suction port formed therein and an ejector chamber part forming a relatively low pressure space around the ejector nozzle part; It is achieved by a vacuum cleaner, characterized in that it comprises an ejector suction tube which is formed of a flexible tubular member and whose one end is separably coupled to the first ejector suction opening.

Here, it is preferable to further include a blocking member coupled to the casing to block the first ejector intake when the ejector suction pipe is separated.

In addition, the casing is provided with a second ejector suction opening so as to be in communication with the outside, the ejector chamber portion is effectively connected to the second ejector suction opening is mutually connected.

The apparatus may further include a second inlet opening / closing member installed in the second ejector inlet region to open or close the second ejector inlet.

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

3 is a perspective view of a vacuum cleaner according to an embodiment of the present invention, FIG. 4 is an enlarged cross-sectional view taken along line IV-IV of FIG. 3, FIG. 5 is a cross-sectional view taken along line V-V of FIG. 4, and FIG. 6 is an enlarged view illustrating main parts of FIG. 5. As shown in these figures, the vacuum cleaner, the casing 11 to form a receiving space therein, and the suction force is accommodated in the casing 11 so that the fluid can be sucked from the outside of the casing 11 Suction fan 35 for generating, an extension tube 37 formed at least a portion of the tubular member having a flexible and one end is coupled to communicate with the casing 11, and formed at the other end of the extension tube 37 fluid It is disposed on the suction side of the suction head 35 and the suction fan 35 inside the casing 11 to allow the passage of the fluid sucked through the suction head 41 and at the same time block foreign matter inside The dust bag 43 collecting foreign matters, and one end is coupled to the discharge side of the suction fan 35 and the other end extends to the suction side of the suction fan 35 to discharge the fluid from the suction fan 35. An exhaust circulation pipe 45 for circulating at least a part, and an exhaust circulation The ejector nozzle part 51 and one end which are formed at the end of the pipe 45 to allow the fluid circulated through the exhaust circulation pipe 45 to be injected at a relatively high speed are disposed on the outlet side of the ejector nozzle part 51 and the other end thereof. The first ejector suction opening 55 is formed to communicate with the outside of the casing 11 and the ejector 50 having the ejector chamber part 53 forming a relatively low pressure space around the ejector nozzle part 51. The first ejector suction tube 59 is formed of a tubular member having a flexible shape, and one end thereof is detachably coupled to the first ejector suction port 55.

Extension tube 37 is formed of a plurality of non-corrugated pipe (38a) that is detachably coupled to each other, a tubular member having a flexible, one end is coupled to communicate with the casing (11) and the other end is coupled to the non-corrugated pipe (38a) It has a corrugated pipe 38b. A suction head 41 is formed in the non-crease tube 38a disposed upstream with respect to the flow direction of the fluid, and a handle 40 is formed in the non-crease tube 38a disposed downstream.

Inside the casing 11, a dust bag accommodation space 12a and a suction fan accommodation space 12b in which the dust bag 43 and the suction fan 35 are accommodated are formed, respectively, and the suction fan accommodation space 12b is provided. One side of the ejector receiving space 12c is formed to accommodate the ejector 50. On one side of the ejector accommodation space 12c, a cord reel accommodation space 12d is formed to accommodate the cord reel 13 in which the power cord 14 is wound.

A discharge port 15 is formed in the rear end region of the casing 11 to discharge the fluid, and an exhaust filter 16 is disposed at the inner edge of the discharge port 15 so as to filter the discharged fluid. .

In the partition 17 which partitions the dust bag accommodation space 12a and the suction fan accommodation space 12b, a suction port 18 is formed so that the suction fan 35 can suck the fluid, and the suction fan accommodation space 12b. An exhaust port 20 is formed in the rear region of the back side to discharge the sucked fluid.

An exhaust circulation pipe 45 is formed at one side of the exhaust port 20 so as to circulate a part of the fluid, and an ejector 50 is provided at the end of the exhaust circulation pipe 45.

The ejector 50 is formed in communication with each other at the ends of the exhaust circulation pipe 45 to form a low pressure space around the ejector nozzle part 51 and the ejector nozzle part 51 for injecting the circulated fluid at low pressure high speed. The ejector chamber 53 is configured to include.

The first ejector suction port 55 is formed in the rear end region of the ejector chamber 53 so as to communicate with the outside of the casing 11, and the expansion tube 57 is gradually increased at the outlet end thereof so that the flow cross section is gradually increased. Formed. An end portion of the expansion tube 57 penetrates the partition wall and enters the dust bag 43.

The casing 11 is formed with a suction pipe connecting portion 24 so that the first ejector suction opening 55 and the first ejector suction pipe 59 can be connected and separated from each other, and the suction pipe connecting portion 24 has a first ejector suction pipe. The blocking member 26 is provided to be movable along the up-down direction so as to block the first ejector suction opening 55 when the 59 is separated.

The first ejector suction tube 59 is formed of a flexible tubular member, and is shown in the form of a corrugated tube in this embodiment. At the other end of the first ejector suction pipe 59, a suction nozzle 60 is formed to allow the fluid and foreign substances to be sucked from the outside when coupled to the suction pipe connecting part 24.

On the other hand, the upper surface of the casing 11 is formed with a second ejector suction opening 28, the lower side of the second ejector suction opening 28 to adjust the suction area of the fluid through the second ejector suction opening 28. A pair of the second inlet opening and closing members 29 are provided so as to be mutually accessible and portable.

The second inlet opening / closing member 29 is slidably installed with respect to the casing 11, and the lower side of the second inlet opening / closing member 29 introduces foreign substances having a predetermined size or more into the casing 11. At the same time, a plurality of suction holes 30 having a fine size are formed to allow foreign substances and fluids to be blocked to pass therethrough.

A suction nozzle 32 is provided at the lower side of the suction hole 30 to concentrate the fluid, and a second ejector having one end connected to the side edge of the ejector chamber part 53 at the central region of the suction nozzle 32. The other end of the suction pipe 34 is connected in communication with each other.

By this configuration, when two people want to clean different areas at the same time, the first ejector in a state in which the suction pipe connecting portion 24 is opened by moving the blocking member 26 formed at the rear end of the casing 11 upwardly. The end of the suction pipe 59 is inserted to couple the first ejector suction port 55 and the first ejector suction tube 59 to communicate with each other.

One person grasps the handle 40 formed on the non-pleated pipe 38a, and sucks and removes foreign substances on the bottom surface by using the suction head 41, and the other person uses the first ejector suction pipe 59 to suck the suction head ( This can be done by suctioning off foreign matter on areas that are difficult to access, for example, on a desk.

When power is applied to the suction fan 35, fluid and foreign substances are sucked from the outside through the suction head 41, and the sucked fluid and foreign substances are introduced into the dust bag 43 along the extension pipe 37. The foreign matter introduced into the dust bag 43 is blocked by the dust bag 43 and collected in the dust bag 43, and the fluid passes through the dust bag 43 and the suction fan 35 through the suction port. Is inhaled.

Some of the fluid discharged from the suction fan 35 passes through the exhaust port 20 to cool the cord reel 13 and is filtered by the exhaust filter 16 and then discharged to the outside of the casing 11.

Some of the fluid discharged from the suction fan 35 flows along the exhaust circulation pipe 45 and is injected at a low pressure and high speed through the ejector nozzle part 51 into the expansion pipe 57. Accordingly, the pressure inside the ejector chamber 53 is lowered and the fluid and foreign substances are sucked from the outside through the suction nozzle 60 of the first ejector suction pipe 59.

Fluid and foreign matter sucked through the first ejector suction pipe 59 flow along the inside of the ejector chamber part 53 to enter the expansion pipe 57, and the ejector nozzle part 51 inside the expansion pipe 57. Joined with the fluid injected through the suction through the dust bag (43).

On the other hand, in the case where one person wants to clean and enhance the air cleaning function, the first ejector suction pipe 59 is separated from the suction pipe connection part 24 and the blocking member 26 is moved downward to move the first ejector suction port. Allow 55 to be blocked. Next, the second inlet opening and closing member 29 is slid so as to be spaced apart from each other along the front and rear directions so that the second ejector suction opening 28 is opened.

When power is applied to the suction fan 35 while the second ejector suction opening 28 is opened, fluid and foreign substances are sucked from the outside through the suction head 41, and the suctioned foreign substances are stored in the dust bag 43. Is received and the fluid is sucked into the suction fan 35.

Some of the fluid discharged from the suction fan 35 is filtered by the exhaust filter 16 and then discharged to the outside of the casing 11, and some is cooled by the exhaust filter 16 after cooling the cord reel 13. It is filtered and discharged to the outside.

On the other hand, a part of the fluid discharged from the suction fan 35 is injected by the ejector nozzle portion 51 at a low pressure high speed, thereby the pressure inside the ejector chamber portion 53 is lowered. Accordingly, the fluid is sucked from the outside through the second ejector suction opening 28.

At this time, the dust and the like suspended in the air by the flow of the fluid is sucked with the fluid is introduced into the expansion tube 57 through the ejector chamber portion 53, the ejector nozzle portion inside the expansion tube 57 By being sucked into the dust bag 43 together with the fluid injected from the 51, it becomes possible to remove and remove the dust and the like suspended in the air.

In the above-described and illustrated embodiments, an example in which a pair of second inlet opening and closing members are slidably configured to open and close the second ejector intake is shown, but the number may be configured differently as necessary, A motor or solenoid may be provided to open and close by a simple switch operation.

In addition, the second inlet opening and closing member is an example in which one person is to be opened when cleaning, but even when two people at the same time to clean the second ejector inlet can be opened so that the air cleaning function can be performed. Of course.

As described above, according to the present invention, an exhaust circulation pipe for circulating a part of the fluid discharged from the suction fan, an ejector nozzle part for injecting the fluid circulated at the end of the exhaust circulation pipe at high speed, and an ejector nozzle part The ejector chamber part disposed at the circumference and having one end communicating with the outside and the first ejector suction pipe inserted into and coupled to the outside of the casing in communication with the ejector chamber part are provided so that two users can simultaneously clean different areas. It is easy to provide a vacuum cleaner that can reduce the cleaning time.

In addition, according to the present invention, a vacuum cleaner having an air cleaning function is provided by forming a second ejector suction port communicating with the ejector chamber on the upper surface of the casing to remove and remove dust suspended in the air.

Claims (4)

A casing forming an accommodation space therein; A suction fan accommodated in the casing and generating a suction force so that fluid may be sucked from the outside of the casing; An extension pipe formed of a tubular member having at least some sections flexible and having one end coupled to communicate with the casing; A suction head formed at the other end of the extension tube to suck fluid; A dust bag disposed on the suction side of the suction fan in the casing to allow the passage of the fluid sucked through the suction head and to block foreign substances and collect the foreign substances therein; An exhaust circulation tube having one end coupled to the discharge side of the suction fan and the other end extending to the suction side of the suction fan to circulate at least a portion of the fluid discharged from the suction fan; An ejector nozzle portion formed at an end of the exhaust circulation tube to allow the fluid circulated through the exhaust circulation tube to be injected at a relatively high speed, and one end of which is disposed on the outlet side of the ejector nozzle portion and the other end is in communication with the outside of the casing; An ejector having a first ejector suction port formed therein and an ejector chamber part forming a relatively low pressure space around the ejector nozzle part; A vacuum cleaner comprising an ejector suction tube formed of a flexible tubular member and having one end detachably coupled to the first ejector suction port. The method of claim 1, And a blocking member coupled to the casing to block the first ejector suction opening when the ejector suction tube is separated. The method according to claim 1 or 2, The casing is provided with a second ejector suction opening so as to communicate with the outside, the ejector chamber portion characterized in that connected to the second ejector suction opening in communication with each other. The method of claim 3, And a second inlet opening / closing member installed in the second ejector inlet region so as to open and close the second ejector inlet.