JP5486326B2 - Cyclone vacuum cleaner - Google Patents

Description

  The present invention relates to a cyclonic vacuum cleaner.

  Conventionally, this type of cyclone type vacuum cleaner has a vacuum cleaner main body with an electric blower built therein, and a dust box 101 (corresponding to the dust collecting portion of the present invention) detachably attached to the main body of the vacuum cleaner. In addition, an air inlet 103 (corresponding to the introduction portion of the present invention) is provided so that the airflow flows in a direction substantially tangential to the side wall 102 of the dust box 101, and is concentric with the side wall of the dust box and flows into the dust box from the air inlet. It is known that a wall 104 of the dust box is extended in the air flow direction and a part of the intake port is closed (see, for example, Patent Document 1). In such a cyclonic vacuum cleaner, the diameter of the air inlet 103 is made smaller than the inner diameter of the communication portion 105 by the wall 104, so that the cyclone action in the dust box can be improved, and the centrifugal force is increased. It is possible to obtain a good vacuum collecting performance while being able to obtain good dust collection performance and to increase the amount of dust accumulated in the dust box.

Japanese Patent No. 3298573

  However, such a cyclone type vacuum cleaner has a problem in that the wall of the intake port must be formed with the wall, which complicates the structure of the molding die and increases the cost. Further, in order to guide the airflow passing through the air intake port smoothly toward the inner wall of the dust box, the flow area of the air intake port must be gradually reduced toward the diameter portion. Since a thickened portion is generated, the difficulty of molding is further improved and the cost is further increased.

  An object of the present invention is to solve the above-mentioned problems and to provide a cyclonic vacuum cleaner that can improve the cyclone action at low cost.

The cyclonic vacuum cleaner according to claim 1 of the present invention has a vacuum cleaner main body having an electric blower and a cyclone dust collecting portion detachably attached to the vacuum cleaner main body, and the cyclone dust collecting In the cyclone type vacuum cleaner having a cyclone cylinder and an introduction part for introducing an air flow along the inner wall of the cyclone cylinder, the insertion cylinder part of the suction hose member can be inserted into the introduction part. Rutotomoni, bending the center side of the wall of the cyclone type dust collecting part of an end portion of the insertion tube, which is narrowed at one end portion side Rukoto is bent toward the outer circumferential side of the cyclone type dust collecting part A part is provided.

  The cyclonic vacuum cleaner according to claim 2 of the present invention is the cyclonic vacuum cleaner according to claim 1, wherein the end of the bent portion is the inner wall of the cyclone cylinder in a state where the insertion cylinder is inserted into the introduction section. It is comprised so that it may become a position substantially equal to the extended surface of.

The cyclone-type vacuum cleaner according to claim 1 of the present invention is configured as described above, whereby the dust-containing airflow sucked through the suction hose member is inserted into the introduction portion. The vortex flows into the cyclone cylinder and passes along the inner wall of the cyclone cylinder, and the dust contained in the airflow can be separated by centrifugal force. At this time, immediately before the dust-containing airflow flows into the cyclone cylinder, the flow area of the dust-containing airflow is narrowed by the bent portion and directed toward the inner wall of the cyclone cylinder. All of the vortex flow swirls along the inner wall of the cyclone cylinder, and the angular velocity of the vortex flow in the cyclone cylinder can be increased to improve the centrifugal action. Moreover, since the structure of the cyclone type dust collecting part itself can be simplified by providing the insertion cylinder part with a bent part, the cyclone type dust collection part can be easily molded, and the insertion cylinder part The difficulty of molding is not much different from that of a simple cylinder. Therefore, it can be constructed at low cost while improving the centrifugal separation action of the cyclonic vacuum cleaner.

  Further, in the state where the insertion tube portion is inserted into the introduction portion, the end portion of the bent portion is configured to be at a position substantially equal to the extended surface of the inner wall of the cyclone tube, so that the bent portion is Since it does not interfere with the vortex swirling in the cyclone cylinder, it is possible to suppress a decrease in the centrifugal separation effect.

It is a top view of the cyclone type vacuum cleaner which shows one Embodiment of this invention. It is a schematic explanatory drawing of a cyclone type dust collecting part. It is a schematic explanatory drawing of the cyclone type dust collecting part in the conventional cyclone type vacuum cleaner.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2. 1 is a cyclonic vacuum cleaner of the present invention. The cyclone vacuum cleaner 1 includes a cleaner body 2, a cyclone dust collecting unit 3, and a suction hose member 4.

  The cleaner body 2 has an electric blower 5 inside. Moreover, the said vacuum cleaner main body 2 has the wheel 6 so that it can move freely on the to-be-cleaned surface. Moreover, the said cleaner body 2 has the switch operation part 7 for operating the said electric blower 5 on the upper surface. Moreover, the said cleaner body 2 has the cord winding operation part 9 for winding up the power cord which is not illustrated in which the plug 8 was provided in the front-end | tip at the upper surface. Moreover, the said vacuum cleaner main body 2 has the holding part 10 for holding and carrying this vacuum cleaner main body on the upper surface. Moreover, the said vacuum cleaner main body 2 has the hook 11 for detachably fixing the said cyclone type dust collecting part 3 to the upper surface. Further, the cleaner body 2 has an exhaust port 12 at the rear part thereof.

  The cyclonic dust collector 3 is detachably attached to the cleaner body 2. The cyclone dust collecting unit 3 includes a cyclone cylinder 13, an introduction part 14 provided integrally with the cyclone cylinder 13, an attachment part 15 fixed to the introduction part 14, and a center of the cyclone cylinder 13. And an outlet portion 16 provided in the main body. An insertion tube portion 17 of the suction hose member 4 is inserted into the attachment portion 15. The insertion tube portion 17 is attached to the attachment portion 15. One end portion 17A of the insertion tube portion 17 reaches the inside of the introduction portion 14 and is at a position substantially equal to the extended surface of the inner wall 13A of the cyclone tube 13. Further, the outlet portion 16 communicates with the electric blower 5 when the cyclone type dust collecting portion 3 is attached to the cleaner body 2.

  Further, when the insertion cylinder part 17 is inserted into the introduction part 14, the wall of the one end part 17 </ b> A of the insertion cylinder part 17 that becomes the center side of the cyclone dust collection part 3 is used as the outer periphery of the cyclone dust collection part 3. The bent portion 17B is formed by smoothly bending toward the side. The insertion direction of the insertion tube portion 17 is regulated so that the bent portion 17B is on the center side (lower side in FIG. 2) of the cyclone type dust collection portion 3. In addition, a bending hose and a suction nozzle (not shown) are provided at the other end of the insertion tube portion 17.

  Thus, since the introduction part 14 of the cyclone type dust collecting part 3 can be formed in a simple cylinder shape, the structure of the cyclone type dust collecting part 3 itself can be simplified. Therefore, the structure of the molding die for molding the cyclone type dust collecting part 3 can be simplified, so that the cyclone type dust collecting part 3 can be manufactured easily and inexpensively. On the other hand, the degree of difficulty in forming the insertion cylinder portion 17 is not much different from that in the case of forming a simple cylindrical one, except that the shape of the molding die is different. Therefore, the cyclonic vacuum cleaner 1 can be manufactured easily and inexpensively.

  Next, the operation of this embodiment will be described. First, the user pulls out the cord from a cord reel (not shown) and connects the plug 8 to an AC power source (not shown). Further, the cyclone type dust collecting part 3 is attached to the cleaner body 2, and the insertion cylinder part 17 of the hose member 4 is inserted and attached to the attachment part 15 of the cyclone type dust collecting part 3. And the said electric blower 5 is operated by operating the said switch operation part 7. FIG. As described above, when the electric blower 5 is operated, the dust-containing airflow flows into the cyclone type dust collecting section 3 through the hose member 4. The cyclone type dust collecting unit 3 separates dust from the air current. The air stream from which the dust has been separated reaches the electric blower 5 from the outlet 16 of the cyclone type dust collector 3 and is further discharged from the exhaust port 12 into the atmosphere.

  The airflow in the cyclone type dust collecting part 3 and its periphery will be described in detail. The dust-containing airflow passing through the hose member 4 flows into the cyclone cylinder 13 through the insertion cylinder portion 17. At this time, in the dust-containing airflow, on the wall of the one end portion 17A of the insertion tube portion 17 which is the outer peripheral side of the cyclone dust collecting portion 3 in the state of FIG. 2 (the upper wall of the insertion tube portion 17 in FIG. 2). The dust-containing airflow flowing along the cylinder flows into the cyclone cylinder 13 along the inner wall 13A of the cyclone cylinder 13. On the other hand, along the wall of one end portion 17A of the insertion tube portion 17 that is the center side of the cyclone dust collecting portion 3 in the state of FIG. 2 in the dust-containing airflow (the lower wall of the insertion tube portion 17 in FIG. 2). The dust-containing airflow flowing in the direction is directed toward the inner wall 13A of the cyclone cylinder 13 by the bent portion 17B. As a result, the dust-containing airflow that flows into the cyclone cylinder 13 through the insertion cylinder portion 17 is directed to pass through the outer peripheral side of the cyclone cylinder 13. For this reason, almost all of the dust-containing airflow that has flowed into the cyclone cylinder 13 from the insertion cylinder portion 17 becomes a swirl that swirls along the inner wall 13A of the cyclone cylinder 13 and flows out directly from the outlet portion 16. Absent.

Further, since the one end portion 17 </ b> A side of the insertion tube portion 17 is narrowed, the flow velocity of the airflow flowing into the cyclone tube 13 is faster than the flow velocity of the airflow passing through the insertion tube portion 17. Therefore, since the angular velocity of the vortex flow in the cyclone cylinder 13 can be increased, the centrifugal force acting on the dust contained in the airflow can be increased correspondingly, and the centrifugal action can be enhanced.

As described above, the one end portion 17A of the insertion tube portion 17 is positioned substantially equal to the extended surface of the inner wall 13A of the cyclone tube 13, so that the one end portion 17A of the insertion tube portion 17 is the cyclone tube. Since the eddy current in 13 is hardly obstructed, it is possible to suppress a decrease in the centrifugal action due to the eddy current . If the one end portion 17A of the insertion tube portion 17 protrudes into the cyclone tube 13, vortex flow is prevented by this protruding portion, and the centrifugal separation action may be reduced. Conversely, when one end 17A of the insertion cylinder 17 is in a position retracted from the cyclone cylinder 13, a turbulent flow is generated between the inner wall 13A of the cyclone cylinder 13 and the one end 17A of the insertion cylinder 17. As a result, the centrifugal separation action may be reduced.

As described above, the present invention includes the vacuum cleaner body 2 having the electric blower 5 and the cyclone dust collection unit 3 that is detachably attached to the vacuum cleaner body 2, and the cyclone dust collection unit 3 is The cyclone electric vacuum cleaner 1 includes a cyclone cylinder 13 and an introduction part 14 for introducing an air flow along the inner wall 13A of the cyclone cylinder 13, and an insertion cylinder part 17 of the suction hose member 4 is connected to the introduction part 14. A bent portion configured to be insertable and having a wall on the center side of the cyclonic dust collecting portion 3 at one end portion 17A of the insertion cylinder portion 17 bent toward the outer peripheral side of the cyclonic dust collecting portion 3 by providing the 17B, while being simple and inexpensive construction, it is possible vortex to increase the angular velocity of the street and swirl the outer peripheral side of the cyclone tube 13, to improve the centrifugal separation effect It is those that can be.

  Further, in a state where the insertion tube portion 17 is inserted into the introduction portion 14, the end portion of the bent portion 17 </ b> B, that is, the one end portion 17 </ b> A is positioned substantially equal to the extended surface of the inner wall 13 </ b> A of the cyclone tube 13. By being configured in this manner, the bent portion 17B does not hinder the vortex flow swirling in the cyclone cylinder 13, so that the reduction in the centrifugal separation action can be suppressed.

  In addition, this invention is not limited to the above embodiment, A various deformation | transformation implementation is possible within the range of the summary of invention. For example, in the above embodiment, the axial direction of the cyclone type dust collecting part is horizontal, but the operation is the same even when the axial direction of the cyclone type dust collecting part is vertical.

DESCRIPTION OF SYMBOLS 1 Cyclone type vacuum cleaner 2 Vacuum cleaner main body 3 Cyclone type dust collecting part 4 Suction hose member 5 Electric blower 13 Cyclone cylinder 13A Inner wall 14 Introduction part 17 Insertion cylinder part 17A One end part 17B Bending part

Claims (2)

It has a vacuum cleaner body having an electric blower and a cyclone type dust collecting part that is detachably attached to the vacuum cleaner body, so that the cyclone type dust collecting part follows the cyclone cylinder and the inner wall of the cyclone cylinder. In a cyclonic vacuum cleaner having an introduction part for introducing an airflow,
The introduction, the insertion tube portion with insertably constructed suction hose member, the center side of the wall of the cyclone type dust collecting part of an end portion of the insertion tube, of the cyclone type dust collecting part cyclonic vacuum cleaner, characterized in that a bent portion which is narrowed at one end portion side Rukoto is bent toward the outer circumferential side.   2. The configuration according to claim 1, wherein, in a state where the insertion tube portion is inserted into the introduction portion, an end portion of the bent portion is configured to be at a position substantially equal to an extended surface of an inner wall of the cyclone tube. Cyclone vacuum cleaner.

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