JP2007021183A - Cyclone unit and dust collecting device with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low cost cyclone unit capable of being used by simply inserting into and securing to an existing dust collecting device not employing a cyclone structure and a dust collecting device with the same. <P>SOLUTION: The cyclone unit and the dust collecting device has a circular cylinder portion housed in a dust collecting cylinder, at least one holding pieces holding the circular cylinder portion separating the cylinder portion from the inner peripheral face of the dust collecting cylinder by extending and forming the pieces from the outer peripheral face of the circular cylinder portion so as to come into contact with the outer peripheral face of the dust collecting cylinder, and an air inlet pipe whose one end is in communication with the air inlet of the dust collecting cylinder and the other end of which is in communication with one side of the circular cylinder portion in a tangential direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cyclone unit for collecting dust from the outside and discharging air separated from the dust to the outside, and a dust collecting device including the cyclone unit.

  In general, a vacuum cleaner includes a dust collection cylinder for separating and collecting dust from outside air flowing in through a suction nozzle, and discharging air separated from the dust to the outside.

  Such a conventional garbage collection cylinder is substantially cylindrical, and the trash-containing air flows into one of the garbage collection cylinders in a tangential direction and flows into the garbage collection cylinder while flowing into the garbage collection cylinder. Along with the trash, the trash falls to the bottom of the trash collection cylinder due to its own weight, and the air separated from the trash by centrifugal force is discharged to the outside through the air discharge pipe formed at the top of the trash collection cylinder. Is done.

  By the way, since the dust collection performance of the conventional garbage collection cylinder is lower than that of the garbage collection cylinder in which the cyclone structure is integrally manufactured on the inside, consumers using vacuum cleaners that do not use the existing cyclone structure are In order to obtain an excellent cleaning effect, it is necessary to purchase a vacuum cleaner having a cyclone structure as it is, and this has a problem of placing a burden on consumers in terms of cost.

  The present invention has been devised to solve the above-described problems, and the object of the present invention is to provide a cyclone unit that can be easily installed and used in an existing dust collector that does not employ a cyclone structure at a low cost. Another object is to provide a dust collector having the same.

  In order to achieve the above-described object, the present invention guides the air containing dust sucked into the air inlet of the dust collecting cylinder through the suction nozzle of the vacuum cleaner to the air discharge pipe at the same time as separating the dust from the dust. A cylindrical portion included in the dust collecting cylinder, and the cylindrical portion is extended from the outer peripheral surface of the cylindrical portion so as to be in contact with the inner peripheral surface of the dust collecting cylinder. At least one holding piece that is held away from the inner peripheral surface of the dust collecting cylinder, an air inflow pipe having one end communicating with the air inlet of the dust collecting cylinder and the other end communicating with one of the cylindrical portions in a tangential direction And providing a cyclone unit.

  The at least one holding piece may be fixed at an end contacting the inner peripheral surface of the dust collection cylinder to the inner peripheral surface of the dust collection cylinder via heat sealing.

  The air inflow pipe is extended to surround a section along the outer periphery of the cylindrical portion in order to increase the turning force, thereby further applying the turning force before the inflowing air flows into the cylindrical portion. it can.

  In the present invention, a swirl force is applied to the dust-containing air guided in the cylindrical portion by the air inflow pipe, and at the same time, formed in the cylindrical portion to guide to the air discharge pipe side disposed above the cylindrical portion. It may further include a shaped spiral guide.

  The at least one holding piece and the outer diameter of the air inlet pipe have the same width. The cylindrical portion further includes a cylindrical central axis in the center of the inside in order to smoothly swirl the incoming air.

  According to another aspect of the present invention, there is provided an air inlet through which air containing dust passes through a suction nozzle of a vacuum cleaner, and a torso for collecting and discharging dust, and included in the torso And at least one holding piece for holding the cylindrical portion so as to be separated from the inner peripheral surface of the fuselage by extending from the outer peripheral surface of the cylindrical portion to contact the inner peripheral surface of the fuselage, One end is in communication with the air inlet of the fuselage, the other end is in communication with one of the cylindrical portions in a tangential direction, and air containing dust guided into the cylindrical portion by the air inflow tube A cyclone unit comprising: a spiral guide formed in the cylindrical portion for simultaneously applying a turning force to the air discharge pipe disposed on the upper side of the cylindrical portion; Provide dust collector .

  In the present invention, the body further includes an upper cover that opens and closes an upper end of the body, and the upper cover may integrally form an air discharge pipe for guiding the air discharged from the body to the outside.

  The body may further include a lower cover hinged to the lower end of the body so as to open and close the lower end of the body.

  The body is made of a transparent or translucent material, whereby the amount of collected dust can be easily grasped.

  The cyclone unit is preferably provided with an upper end separated from the lower end of the upper cover so as to discharge the dust separated from the cyclone unit into the body.

  Preferably, a dust discharge path is formed between the outer periphery of the cyclone unit and the inner periphery of the body, and a dust collection chamber is formed between the lower portion of the cyclone unit and the lower cover.

  The air discharge pipe of the upper cover is preferably extended downward from the upper cover so as to be included in the cylindrical portion of the cyclone unit.

  The end of the at least one holding piece in contact with the inner peripheral surface of the body is heat-sealed with the inner peripheral surface of the body. The at least one holding piece may be fixed to the body by a screw fastened from the outside of the body toward the holding piece. Further, the holding pieces are formed by a plurality of pieces, the widths of the holding pieces are wider than the interval between the outer periphery of the cylindrical portion and the outer periphery of the body, and the ends of the holding pieces are crimped to the inner peripheral surface of the body. It is also possible to be combined.

  It is preferable that the outer surface of the air inflow pipe is in contact with the inner periphery of the fuselage, so that the cylindrical portion is held away from the inner peripheral surface of the fuselage, and the surface in contact with the inner peripheral surface of the fuselage is It can also be fixed so as to be fused. The air inflow pipe may be formed wider than a space between the outer periphery of the cylindrical portion and the periphery of the body, and may be coupled to the inner peripheral surface of the body together with the at least one holding piece.

  In the present invention, it is possible to recycle the product and reduce the cost of consumers at the same time by simply inserting and fixing the cyclone unit without changing the structure of the existing garbage collection cylinder which does not adopt the cyclone structure at low cost. be able to.

  In addition, by providing the cyclone unit in the body of the dust collection cylinder, the air discharge pipe and the dust collection chamber are isolated from each other, so that the dust collected in the dust collection chamber can be prevented from re-scattering. Further, when the cleaner body is turned obliquely with reference to the suction nozzle, it can be prevented that the cleaner body flows into the air discharge pipe due to the flow of dust.

  Furthermore, since the external air passing through the air inflow pipe is discharged from the air discharge pipe without changing its direction, it is possible to minimize the interference between the air flowing into the cyclone unit and the air discharged outside. Thus, loss of suction force is prevented. The air inflow pipe is extended so as to surround the cylindrical portion outside the cylindrical portion, and the swirling force of the inflowing air is increased by rotating the air flowing in from a part of the section and then flowing into the cylindrical portion. Can be increased more.

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

  FIG. 1 is a perspective view illustrating a state in which a cyclone unit according to an embodiment of the present invention is provided in a vacuum cleaner. As shown in the figure, a dust collector 100 according to the present invention is detachably inserted into a main body 11 of a cleaner 10. A suction nozzle 15 is pivotably coupled to the lower portion of the cleaner body 11, and a handle portion 13 is formed at the upper end of the body 11. In the present embodiment, an upright vacuum cleaner will be described as an example of a vacuum cleaner to which the dust collector 100 is coupled. However, the present invention is applicable to various vacuum cleaners such as a canister type vacuum cleaner. Is possible.

  As shown in FIGS. 2 and 3, the dust collector 100 includes a body 110, an upper cover 130, a lower cover 150, and a cyclone unit 170.

  The fuselage 110 has a cylindrical shape with open upper and lower ends, and an air inlet 111 for inflowing dust-containing air into the fuselage 110 that flows in from the outside into the center is a tangential direction of the fuselage 110. Formed. In this case, in the present embodiment, the body 110 is described as a cylinder, but the present invention is not limited to this, and depending on the shape of a portion (not shown) into which the dust collector of the cleaner body 11 is inserted, for example, Can be conical or inverted conical. The body 110 is made of a transparent or translucent material. In this case, the amount of collected dust collected in the body 110 can be easily confirmed without opening the upper cover 130.

  As shown in FIG. 2, the upper cover 130 is detachably provided on the upper end of the body 110 so as to open and close the upper end of the opened body 110. Further, the upper cover 130 includes an air discharge pipe 131 for discharging air separated from dust by the body 110 to the outside of the body 110, and the air discharge pipe 131 passes through the center of the upper cover 130. At the same time, it is formed downward from the bottom surface of the upper cover 130 so as to be included in the body 110. The upper cover 130 is provided with an annular backflow prevention strip 133 (see FIG. 6) having a diameter larger than the diameter of the cylindrical portion 171 on the lower surface facing the upper end of the cylindrical portion 171. This prevents dust discharged from a dust outlet 114 (see FIG. 6), which will be described later, from flowing back into the cylindrical portion 171 (see FIG. 6) through the dust outlet 114 again by centrifugal force.

  One lower cover 150 is formed at the lower end of the fuselage 110 and hinged to open and close the lower end of the opened fuselage 110. The hinge coupling structure of the lower cover 150 is a normal hinge coupling structure. For example, a pair of hinge portions 151 (see FIG. 5) formed on one side of the lower cover 150 project from the lower end of the body 110. In the state inserted in this fixed piece 113 (refer FIG. 5), it includes the hinge shaft 115 (refer FIG. 5) which penetrates and connects this fixed piece 113 and the hinge part 151. FIG. The lower cover 150 is constrained by a lock lever 118 (see FIG. 7) provided at the other end of the body 110. Accordingly, when the dust collected inside the body 110 is discharged to the outside, the lower cover 150 is moved around the hinge shaft 115 by gravity when the lock lever 118 is operated and the other restraint of the lower cover 150 is released. While turning downward, the dust accumulated in the lower cover 150 is discharged downward by gravity.

  As shown in FIG. 3, the cyclone unit 170 includes a cylindrical portion 171, an air inflow pipe 173, a large number of holding pieces 175a, 175b, and 175c, a central shaft 177 (see FIG. 4A), and a spiral guide 179 (see FIG. 4A). Is included.

  The cylindrical portion 171 has a diameter smaller than that of the body 110 so as to be inserted inside the body 110. By being inserted inside the fuselage 110, the cylindrical portion 171 isolates the air discharge pipe 131 (see FIG. 6) in the space 113 of the fuselage 110 where the dust is collected, so that the dust is re-scattered. Thus, it is possible to prevent the air exhaust pipe 131 from being discharged to the outside.

  Further, by disposing the cylindrical portion 171 inside the body 110, a dust discharge port 114, a dust discharge path 116, and a dust collection chamber 117 are formed in the space portion 113 (see FIG. 3) of the body 110. Such a space will be described in detail with reference to FIG. First, the dust discharge port 114 is formed between the upper end of the cylindrical portion 171 and the lower end of the upper cover 130, and the dust rising while rotating along the inner peripheral surface of the cylindrical portion 171 is centrifugal force. Is an outlet discharged from the inside of the body 110. The dust discharge path 116 is a space formed between the outer periphery of the cylindrical portion 171 and the inner peripheral surface of the body 110 and serves to guide the dust that has passed through the dust discharge port 114 downward. The dust collection chamber 117 is a space formed between the lower end of the cylindrical portion 171 and the lower cover 150, and is a space in which dust that falls under the influence of the weight along the dust discharge path 116 is collected. .

  The air inflow pipe 173 communicates with the through hole 111 of the body 110 and serves as a passage for guiding the air containing dust flowing in from the outside through the through hole 111 into the cylindrical portion 171. In this case, the air that has flowed into the cylindrical portion 171 through the air inflow pipe 173 is tangentially formed below the cylindrical portion 171 so that the air can be flowed in by a turning force. Further, the air inflow pipe 173 is preferably extended so as to surround a partial section along the outer periphery of the cylindrical portion 171 in order to increase the turning force.

  The spiral guide 179 (see FIG. 6) is formed between a central axis 177 formed in a direction perpendicular to the inner center of the cylindrical portion 171 and the inner peripheral surface of the cylindrical portion 171. Such a spiral guide 179 improves the turning force of the incoming air that has flowed into the cylindrical portion 171 from the air inlet pipe 1173. In addition, the inflow passage of the inflowing air that swirls along the spiral guide 179 is formed in a spiral by the central shaft 177 to improve the swirling force of the inflowed air.

  The plurality of holding pieces 175 a, 175 b, and 175 c are formed to extend at a predetermined interval on the outer periphery of the cylindrical portion 171, and have a predetermined width so that the cylindrical portion 171 is provided at a predetermined distance from the inside of the body 110. The plurality of holding pieces 175 a, 175 b, and 175 c may have one of the holding pieces 175 a, 175 b, and 175 c as the inner peripheral surface of the body 110 so that the cylindrical portion 171 can be fixed inside the body 110. It is fixed by heat fusion to 110a.

  In addition to this heat fusion fixing method, the width of the large number of holding pieces 175a, 175b, 175c (w, see FIG. 3) is slightly widened, and the ends of the large number of holding pieces 175a, 175b, 175c are inside the body 110. There is also a method of pressure bonding to the peripheral surface.

  Further, as shown in FIG. 4B, the thickness (t) of the large number of holding pieces 275 is formed to be slightly thick, and the screws 271 are fastened to the large number of holding pieces 275 from the outside of the body 110, whereby the cyclone unit is The body 110 can be fixed.

  On the other hand, as shown in FIG. 4A, the plurality of holding pieces 175 a, 175 b, and 175 c may be formed with the same width as the outer diameter of the air inflow pipe 173, and the cylindrical portion 171 may be disposed at the center in the body 110. It is.

  As described above, the dust collection effect is maximized by inserting and fixing the cyclone unit 170 as described above to the dust collector having the existing upper and lower covers that do not employ the cyclone dust collection structure according to the embodiment of the present invention. Can be made. In addition, the existing dust collector can be recycled by simply inserting and fixing the cyclone unit 170 without changing the structure.

  The operation of the dust collector including the cyclone unit according to the embodiment of the present invention will be described as follows.

  First, air containing dust that has flowed into the air inflow pipe 173 via the suction nozzle 15 (see FIG. 1) outside is guided into the cylindrical portion 171 while being flown into the cylindrical portion 171. Ascending along the inner wall rises toward the upper cover 130. The dust separated from the ascending and swirling air by centrifugal force is collected in the dust collection chamber 117 through the dust discharge port 114 and the dust discharge path 116 in order. Note that the dust collected through the dust discharge port 114 is prevented from flowing back to the dust discharge port 114 by the backflow prevention strip 133. Meanwhile, the air from which the dust is separated is discharged to the outside of the dust collector 100 through an air discharge pipe 131 formed through the upper cover 130.

  Although the preferred embodiments of the present invention have been illustrated and described with reference to the drawings, the protection scope of the present invention is not limited to the above-described embodiments, and the invention described in the claims and equivalents thereof are described. It extends to things.

It is a perspective view which shows the state which attached the dust collector provided with the cyclone unit which concerns on one embodiment of this invention to the cleaner body. It is a perspective view which shows the cyclone unit shown in FIG. It is a disassembled perspective view which shows the cyclone unit shown in FIG. It is a top view which shows the state from which the upper cover of the cyclone unit shown in FIG. 2 was removed. It is a partially expanded view which shows the example by which a cyclone unit is fixed to a cylindrical body inner side with a screw | thread. FIG. 3 is a partially enlarged perspective view showing a portion A displayed in FIG. 2. It is sectional drawing shown along the XX line displayed in FIG. It is a partially cutaway side view which shows the state seen from the B direction displayed on FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Dust collector 110 Body 130 Upper cover 131 Air exhaust pipe 150 Lower cover 170 Cyclone unit 171 Cylindrical part 173 Air inflow pipes 175a, 175b, 175c Holding piece 179 Spiral guide

Claims (19)

A cyclone unit for separating the dust-containing air sucked into the air inlet of the garbage collection cylinder through the suction nozzle of the vacuum cleaner and guiding it to the air discharge pipe at the same time,
A cylindrical portion included in the garbage collection cylinder;
By extending from the outer peripheral surface of the cylindrical portion so as to contact the inner peripheral surface of the dust collecting cylinder, at least one holding piece that holds the cylindrical portion apart from the inner peripheral surface of the dust collecting cylinder;
A cyclone unit comprising: an air inlet pipe having one end communicating with an air inlet of the dust collecting cylinder and the other end communicating with one of the cylindrical portions in a tangential direction.   2. The cyclone unit according to claim 1, wherein the at least one holding piece has a terminal end in contact with an inner peripheral surface of the dust collecting cylinder and heat-sealed with the inner peripheral surface of the dust collecting cylinder.   2. The cyclone unit according to claim 1, wherein the air inflow pipe is extended to surround a partial section along an outer periphery of the cylindrical portion in order to increase a turning force.   A spiral type formed in the cylindrical portion for applying a turning force to the air containing dust guided in the cylindrical portion by the air inflow pipe and at the same time guiding to the air discharge pipe side arranged on the upper side of the cylindrical portion. The cyclone unit according to claim 1, further comprising a guide.   The cyclone unit according to claim 1, wherein the at least one holding piece and the outer diameter of the air inflow pipe have the same width.   5. The cyclone unit according to claim 1, wherein the cylindrical portion further includes a cylindrical central axis at an inner center in order to smoothly turn the inflowing air. A body for collecting and discharging dust, including an air inlet through which air containing dust passes through a suction nozzle of a vacuum cleaner;
A cylindrical portion included in the fuselage, and extending from the outer peripheral surface of the cylindrical portion to contact the inner peripheral surface of the fuselage, thereby holding the cylindrical portion so as to be separated from the inner peripheral surface of the fuselage. One holding piece, one end communicated with the air inlet of the fuselage, the other end communicated in a tangential direction with one of the cylindrical portions, and the air inflow tube guided into the cylindrical portion. A cyclone unit including a spiral guide formed in the cylindrical portion for applying a turning force to the air containing dust and simultaneously guiding the air to an air discharge pipe disposed on the upper side of the cylindrical portion. A vacuum cleaner dust collector.   8. The body according to claim 7, wherein the body further includes an upper cover that opens and closes an upper end of the body, and the upper cover integrally forms an air discharge pipe for guiding the air discharged from the body to the outside. Vacuum cleaner dust collector.   The dust collector of claim 7, wherein the body further includes a lower cover hinged to the lower end of the body so as to open and close the lower end of the body.   The dust collector of a vacuum cleaner according to claim 7, wherein the body is made of a transparent or translucent material.   9. The dust collector of a vacuum cleaner according to claim 8, wherein the cyclone unit is provided with an upper end spaced apart from the lower end of the upper cover so as to discharge the dust separated from the cyclone unit into the fuselage. apparatus.   The vacuum cleaning according to claim 7, wherein a dust discharge path is formed between an outer periphery of the cyclone unit and an inner periphery of the body, and a dust collection chamber is formed between the lower portion of the cyclone unit and the lower cover. Machine dust collector.   The dust collector of a vacuum cleaner according to claim 7, wherein the air discharge pipe of the upper cover is formed to extend downward from the upper cover so as to be included in a cylindrical portion of the cyclone unit.   The dust collecting apparatus for a vacuum cleaner according to claim 7, wherein the at least one holding piece has a terminal end in contact with the inner peripheral surface of the body to be heat-sealed with the inner peripheral surface of the body.   The dust collecting apparatus for a vacuum cleaner according to claim 7, wherein the at least one holding piece is fixed to the body by a screw fastened from the outside of the body toward the holding piece.   The holding pieces are formed by a plurality of pieces, the widths of the holding pieces are wider than the interval between the outer periphery of the cylindrical portion and the periphery of the body, and the terminal ends of the holding pieces are pressed against the inner peripheral surface of the body. The dust collector of a vacuum cleaner according to claim 7, wherein the dust collector is combined.   8. The dust collector of a vacuum cleaner according to claim 7, wherein the outer side of the air inflow pipe is in contact with the inner periphery of the fuselage to hold the cylindrical portion apart from the inner peripheral surface of the fuselage.   18. The dust collector of a vacuum cleaner according to claim 17, wherein a surface of the air inflow pipe that is in contact with an inner peripheral surface of the fuselage is heat-sealed with an inner peripheral surface of the fuselage.   The air inflow pipe is formed wider than an interval between the outer periphery of the cylindrical portion and the outer periphery of the fuselage, and is joined to the inner peripheral surface of the fuselage together with the at least one holding piece while being crimped. The dust collector of the vacuum cleaner as described.

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