JP5291775B2 - Cyclone dust remover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cyclone dust collection device capable of increasing a whirl speed of a suction fluid inside a suction chamber, improving a removal object separation performance and processing efficiency and downsizing the device. <P>SOLUTION: For a suction chamber 40 in which an exhaust port 42a is formed on the upper end side and an intake port 25 is connected to a peripheral wall part 41, a discharge port is constituted of a lower end opening 41a of the peripheral wall part 41, the peripheral wall part 41 is formed in such a tapered shape that the diameter of the upper part becomes smaller than the diameter of the lower part, and a storage part 5 for removal object recovery is disposed on the lower part of the discharge port. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

  The present invention is intended to remove any dust in gas or steam, such as oil mist, oil smoke, and welding fume generated around various types of work equipment, such as dust generated at factories and various workplaces and welding fume generated at welding booths. Fluid (hereinafter referred to as “suction fluid” in the present specification) including an object (hereinafter collectively referred to as a removed substance), cleaning water and oil sucked together with gas, etc. A cyclone dust remover capable of separating and removing removed substances such as dust and liquid from a fluid containing a liquid (hereinafter referred to as “suction fluid” in the present specification). Relates to the device.

As this type of cyclone dust removing device, the technique described in [1] below is known.
[1] The suction chamber to which the swivel inlet is connected is formed in a cylindrical shape, and a throttle portion having a smaller diameter is provided below the cylindrical suction chamber, and is opposed to the lower end of the throttle portion. A cyclone device provided with a reversing partition plate and further provided with a dust collecting portion and a dust box on the lower side thereof (see, for example, Patent Document 1).

JP 2004-223465 A (paragraphs [0008], [0009], FIG. 1 and FIG. 2)

  According to the technique disclosed in Patent Document 1, since the suction chamber is formed in a cylindrical shape, if the swirling speed of the suction fluid in the suction chamber is increased, inertia in the swirling direction of the suction fluid increases. There is a problem that it takes a considerably long time until the swirling downward flow is generated in the suction chamber, and as a result, the suction fluid is stagnated in the suction chamber, and the separation processing time of the removed matter is also increased. .

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cyclone dust removing device capable of improving the removal separation performance and processing efficiency by increasing the swirling speed of a suction fluid in a suction chamber and reducing the size of the device.

The cyclone dust removing device according to the present invention, which has been taken to achieve the above object, has the following technical means.
[Solution 1]
The cyclone dust removing device according to the present invention is separated from the suction port that introduces the suction fluid to be processed and the suction fluid that is introduced into the suction chamber that swirls and flows the suction fluid. A cyclone dust removing device in which a discharge port for discharging the removed matter outside the suction chamber and an exhaust port for sucking and discharging the suction fluid after removal of the removed matter to the outside of the suction chamber,
Said suction chamber, said exhaust port is formed on the upper side, the intake port is connected to a lower portion of the peripheral wall, as well as constituting the discharge port by the lower end opening of the peripheral wall portion, the upper than the lower of the peripheral wall portion Is formed into a tapered shape with a small diameter,
To the lower end side of the discharge port, to the lower side along the peripheral wall portion so as to allow the removed material having a diameter larger than that of the discharge port to flow outside the swirl radius of the swirl flow in the suction chamber. A removal object guide portion composed of an enlarged diameter portion having a downward surface facing outward from the extension line is provided over the entire circumference of the discharge port,
Oh Ri provided reservoir for removal was collected below the discharge port,
A state in which a bottom plate having a diameter smaller than the diameter of the discharge port portion is located at a position facing the discharge port portion of the suction chamber and the entrance opening of the storage portion, and a maximum diameter portion is positioned below the discharge port portion. It is characterized by being arranged by .

[Operation and effect of invention according to Solution 1]
According to the configuration shown in the above solution 1, the suction chamber is constituted by a cyclone provided with a peripheral wall portion formed in a tapered shape whose upper portion is smaller in diameter than the lower portion. Even if the speed is increased, it is possible to avoid such a problem that the suction fluid stagnates in the suction chamber and it takes time to separate the removed matter. That is, if the swirling speed of the suction fluid is increased in the suction chamber, it is useful that separation of the removed substance in the suction fluid can be performed satisfactorily. When the swirl speed is increased, the inertia of the suction fluid in the swirl direction increases, and it takes a considerably long time for the swirl downward flow to occur in the suction chamber, and the suction fluid stagnates in the suction chamber. Therefore, it takes a long time to separate the removed matter.
Compared with this, in the thing of the present invention concerning solution means 1, since the peripheral wall part of the suction chamber is formed in a taper shape whose upper part has a smaller diameter than the lower part as mentioned above, Can give a downward force. Therefore, it is possible to actively move the position of the swirling flow downward in combination with the action of gravity without waiting for the swirling speed of the suction fluid to decline, so avoid the stagnation in the suction chamber as described above. Can do.

As described above, according to the present invention, the swirling speed of the suction fluid in the suction chamber can be increased to favorably separate the removed matter in the suction fluid, and the removed matter can be obtained even if the swirling speed of the suction fluid is increased. There is an advantage that more efficient removal separation can be performed while avoiding the tendency of the time required for the separation process to be long. Accordingly, the structure part for separating the removed substance from the suction fluid can be configured with a compact structure having a short vertical length, and there is an advantage that the apparatus can be downsized or the volume of the storage space can be increased.
In addition, since the suction force on the suction port side can be increased by increasing the swirling speed of the suction fluid in the suction chamber, suction of suction fluid containing a relatively large liquid and removal of a large mass from the suction fluid There is also an advantage that separation can be performed well.

When the swirling flow of the suction fluid reaches the lower end of the suction chamber, the removal guide portion having a diameter larger than that of the discharge port at the lower end of the suction chamber exists on the lower end side of the tapered suction chamber. The removed matter in the suction fluid is efficiently separated to the outside of the swirling flow in the room, and the influence of the swirling flow on the separated removed matter is rapidly weakened and dropped and supplied to the storage section below. Thereby, there is an advantage that separation of a large mass from the suction fluid can be performed more satisfactorily.
Further, since the bottom plate exists opposite to the discharge port portion of the suction chamber, it is possible to reduce the suction action caused by the swirling flow in the suction chamber on the removed matter collected from the discharge port into the storage portion. Therefore, there exists an advantage which can avoid generation | occurrence | production of the situation where the removal thing collect | recovered by the storage part rises again and the collection efficiency of a removal thing falls.

[Solve hand stage 2]
According to another technical means of the present invention taken to solve the above-mentioned problem, as described in claim 1 , an upper side of the suction chamber is located above the suction chamber of the removal material that travels along the inner surface of the suction chamber. The upper end side of the taper-shaped damming member whose upper end has a smaller diameter than the lower end side is supported so as to restrict the flow to the upper end.

[Action and Effect of the invention according to resolve hand stage 2]
According to the configuration shown in the above resolution hand stage 2, by the suction chamber of the damming tapered provided at the top member exists, the peripheral wall of the tapered suction chamber than the lower upper decreases in diameter Even if the removal product rises as a result, there is an advantage that it is possible to suppress the further advancement of the removal product.

[Solve hand stage 3]
The other technical means of the present invention taken to solve the above-described problem includes a storage container as the storage section, as described in claim 3 , and is pushed up by the removed material stored in the storage container. It is characterized in that it includes a float and a valve body that closes the exhaust flow path to the upper side of the suction fluid exiting the suction chamber as the float is pushed up to a predetermined height position.

[Action and Effect of the invention according to resolve hand stage 3]
According to the configuration shown in the above resolution hand stage 3, the operation amount of recovered removed substance in the storage vessel, when it reaches a predetermined height position of the reservoir, the float that has been pushed up by removing material of the valve body Thus, the exhaust passage can be closed.
As a result, when the amount of removed material stored in the storage container reaches a predetermined amount, suction of the suction fluid is automatically stopped, so that it is possible to prevent the situation where the removed material overflows from the storage container. It can be conveniently used without having to work while caring for the recovery status of the removed matter on the storage container side.

It is a front view of the vacuum cleaner using a cyclone dust removal apparatus. It is a side view of the vacuum cleaner using a cyclone dust removal apparatus. It is a vertical front view of the vacuum cleaner using a cyclone dust removal apparatus. It is the IV-IV sectional view taken on the line in FIG. It is an expanded sectional view showing a cyclone processing part. It is a vertical front view which shows a wind generating part. It is a vertical front view which shows the wind generating part of another embodiment. It is explanatory drawing which shows another embodiment of a removal thing guide part.

Hereinafter, an example of an embodiment of the present invention will be described based on the drawings.
〔overall structure〕
1 to 6 illustrate a case where the cyclone dust removing device of the present invention is applied to a vacuum cleaner, and a pair of left and right fixed rollers 10a provided on the rear side and a pair of left and right casters provided on the front side. A pedestal 11 supported by wheels 10b is integrally equipped with an operation handle frame 12 having a grip portion 12a on the rear side to constitute a trolley 1, and a cyclone dust removing device 2 is mounted on the trolley 1 and a vacuum cleaner. Is configured.
The cyclone dust removing device 2 is roughly divided to store a wind generating unit 3 for generating suction air, a dust removing unit 4 for removing dust from the sucked suction fluid, and a removed material removed from the suction fluid. The storage part 5 for this is provided.

In the cyclone dust removing device 2, a case main part 20 in which a wind generating case 21 that houses the wind generating part 3 and a dust removing case 22 that houses the dust removing part 4 are integrated into a storage container 50 constituting the storage part 5. The storage container 50 is configured to be detachable from the pedestal 11.
And the said dust removal case 22 part corresponded to the intermediate part location in the up-down direction of the said case main part 20 is right-and-left both sides with respect to the open | release side edge part of the attachment frame 13 formed in U shape by planar view. The mounting frame 13 is provided with a pair of left and right bosses 13a that are externally fitted to the left and right upright flange portions 12b of the operation handle frame 12 at the end on the open side. It is mounted so that it can slide up and down.
Therefore, the entire case main portion 20 can be changed in the vertical position by holding the mounting frame 13 by hand and sliding it up and down with respect to the operation handle frame 12.

  As shown in FIG. 2, the lower portion of the case main portion 20 is connected to the pedestal 11 via a gas damper 14 at a central portion in the left-right direction at a position on the rear side in the traveling direction of the pedestal 11. The gas damper 14 is biased toward the extending side in the direction in which the case main portion 20 is raised from the state shown in FIG. 2, and the lower end of the case main portion 20 is slightly lifted from the upper end of the storage container 50. The biasing force is set so that the weight of the case main portion 20 and the biasing force of the gas damper 14 are balanced at the position. That is, in a state where the lower end position of the case main portion 20 is located at the same height as the upper end of the storage container 50, the gas damper so that the urging force to the rising side by the gas damper 14 slightly exceeds the weight of the case main portion 20. 14 urging forces are set.

The lower portion of the boss portion 13a of the mounting frame 13 is freely switchable between a state allowing the relative movement of the mounting frame 13 in the vertical direction with respect to the operation handle frame 12 and a state preventing the vertical movement thereof. A locking device 15 is provided.
Although the detailed description of the locking device 15 is omitted, as shown in FIG. 2, the locking device 15 is provided on the side of the operation handle frame 12 and the locking pin 15a provided on the side of the mounting frame 13 and capable of being inserted and removed. It is configured to be switchable between a locked state and an unlocked state by engaging and disengaging with a locking hole (not shown).
Therefore, the case main portion 20 is pushed down against the urging force of the gas damper 14, and the locking pin 15 a is moved to the operation handle frame 12 side at a work position where the case main portion 20 is mounted on the storage container 50. It is possible to fix the position in the use state by being inserted into the locking hole. Then, the locking pin 15a is pulled out, and together with the urging force of the gas damper 14, the locking pin is inserted into another locking hole on the operation handle frame 12 side at an upper position where the case main part 20 is slightly separated from the upper end of the storage container 50. By inserting 15a, the case main portion 20 can be fixed at a non-working position floating from the upper end of the storage container 50. In this state, the storage container 50 can be pulled out and the removed matter can be discarded.

As shown in FIGS. 1 and 2, the wind-up case 21 and the dust removal case 22 of the case main portion 20 are configured to be connected and disconnected by buckles 23 provided at two locations in the circumferential direction. Also in the case 22, a cyclone case portion 22a that houses a cyclone processing portion 4A, which will be described later, and a filter case portion 22b that houses a filter processing portion 4B can be connected and disconnected by buckles 24 provided at three locations in the circumferential direction. It is configured.
The dust removal unit 4 is provided with a suction port 25 to which a vacuum cleaner hose (not shown) can be attached, and the wind generating unit 3 has a suction fluid that has been treated from the entire outer periphery of the wind generating case 21. The outer peripheral exhaust port 26 for discharging the exhaust gas and the exhaust port duct 27 for discharging the exhaust gas from one place on the outer peripheral portion are provided.

[Dust removal part]
As shown in FIGS. 3 to 5, the dust removing unit 4 includes a cyclone processing unit 4A provided on the lower side of the case main portion 20 and a filter processing unit 4B provided on the upper side of the cyclone processing unit 4A. It consists of and.

  The cyclone processing unit 4A includes a suction chamber 40 connected to the suction port 25, a removed material guide unit 43 connected to the lower end side of the suction chamber 40, and an exhaust formed on the upper side of the suction chamber 40. Recovered in the guide chamber 44, the dam member 46 that restricts the flow of the liquid flowing up the inner surface of the peripheral wall 41 and the ceiling 42 of the suction chamber 40 to the upper side of the suction chamber 40, and the storage container 50. A bottom plate 48 for suppressing the lift of the removed object is provided.

The suction chamber 40 has a peripheral wall portion 41 formed in a taper shape in which the upper portion has a smaller diameter than the lower portion (this taper shape means a taper in the upward flow direction of the suction fluid). It has. An intake passage 25a connected to the intake port 25 is connected to an intermediate position in the vertical direction of the peripheral wall portion 41 in a tangential direction of the peripheral wall portion 41, and suction fluid is introduced into the suction chamber 40 from the terminal opening 25b of the intake passage 25a. Is done.
An upper opening 42a (corresponding to an exhaust port) for allowing the treated suction fluid to pass through is formed in the ceiling portion 42 connected to the upper end of the peripheral wall portion 41, and a lower end opening formed at the lower end of the peripheral wall portion 41 A discharge port is constituted by 41a.
As shown in FIG. 4, the intake passage 25 a connected to the suction chamber 40 gradually turns around the outer periphery of the peripheral wall portion 41 of the suction chamber 40 from the position of the intake port 25 directed forward. The path length is determined so as to reach the terminal opening 25b of the intake path 25a while reducing the pressure.

A removed material guide 43 having a diameter larger than that of the lower end opening 41a of the peripheral wall 41 is provided integrally with the lower end opening 41a of the peripheral wall 41.
The removal object guide portion 43 includes a downwardly facing surface 43a extending outward in the horizontal direction from the lower end of the peripheral wall portion 41, a cylindrical inner peripheral surface 43b located at an outer side end portion of the downwardly facing surface 43a, An annular inclined surface 43c that extends radially inward from the lower end of the peripheral surface 43b and inclines downward toward the inner side is provided.
Further, a flange portion 43d that protrudes outward in the horizontal direction is integrally formed on the outer peripheral side of the removed material guide portion 43, and the lower portion of the suction chamber 40 is a case through the flange portion 43. A dust removal case 22 of the main portion 20 is attached.

  In the ceiling portion 42 of the suction chamber 40, a capped cone-shaped chamber wall constituting member 45 for constituting the exhaust guide chamber 44 on the upper side of the suction chamber 40, and the liquid rising side traveling on the inner surface of the peripheral wall portion 41. A damming member 46 that restricts the flow of the gas is attached via a common mounting bolt 47.

The chamber wall constituting member 45 is a peripheral wall formed in a tapered shape whose upper portion is smaller in diameter than the lower portion (this taper shape means a taper with respect to the upward flow direction of the suction fluid). And a cylindrical damming member 45c formed in a cylindrical shape on the ceiling surface 45b. The inside of the cylindrical damming member 45c is further downstream from the exhaust guide chamber 44 in the flow direction of the suction fluid. This constitutes the upper exhaust flow path on the side.
Therefore, the suction fluid that has left the suction chamber 40 and is introduced into the exhaust guide chamber 44 further separates the remaining removed substances while swirling in the exhaust guide chamber 44, and drops on the inner surface of the exhaust guide chamber 44. Even if the liquid droplets adhere to the upper filter processing unit 4B side through the inner surface of the exhaust guide chamber 44, the cylindrical damming member 45c can almost certainly suppress the droplets. it can.

The damming member 46 has a tapered lower portion 46a whose upper portion has a smaller diameter than the lower portion (this taper shape means a taper with respect to the upward flow direction of the suction fluid); The upper part 46b of the reverse taper shape where the upper part has a larger diameter than the lower part continues to the upper end of the lower part 46a.
Therefore, the upward movement of the liquid that is going to move upward through the peripheral wall portion 41 and the ceiling portion 42 in the suction chamber 40 can be restricted by the blocking member 46 portion.

  The cylindrical dam member 45c provided on the ceiling surface 45b of the exhaust guide chamber 44 has a cylindrical shape via stays 45d extending in the radial direction of the cylindrical dam member 45c on the upper end side and the lower end side thereof. A member 45e is supported, and the bottom plate 48 is attached to the lower end portion of the cylindrical member 45e. The bottom plate 48 is disposed at a position facing the discharge port portion formed by the lower end opening 41 a of the peripheral wall portion 41 of the suction chamber 40.

The bottom plate 48 includes a lower plate portion 48a having a diameter smaller than the diameter of the lower end opening 41a of the suction chamber 40 and an upper plate portion 48b whose upper portion is raised on the upper side thereof, and is formed in a hollow shape. .
The bottom plate 48 has a diameter smaller than the diameter of the lower end opening 41 a and a diameter larger than the inner diameter of the damming member 46 provided on the ceiling portion of the suction chamber 40, and the outer peripheral edge of the bottom plate 48. And a passage through which the removed material passes is formed between the lower end opening 41a and the inner periphery thereof. The area of this passage is such that the removal object stored in the lower storage container 50 can be less affected by the swirling of the suction fluid in the suction chamber 40 while allowing the removal object to pass therethrough. The size of the passage area is set, and the presence of the bottom plate 48 is configured to more effectively suppress the rise of the removed material stored in the lower storage container 50.

Below the bottom plate 48, a float 70 of the float valve 7 is provided. The float valve 7 includes an operation shaft 71 that passes through the bottom plate 48 and is inserted into the cylindrical member 45e, and a valve body 72 that is attached to the upper end of the operation shaft 71. Yes.
The said valve body 72 is comprised by the disk-shaped member provided with the vent hole 72a in the center part, and is comprised so that opening and closing of the communicating hole 73 with the filter process part 4B is possible. That is, as shown by the phantom line in FIG. 5, when the removed matter is stored in the storage container 50 and the float 70 is pushed up to a predetermined height, the valve body 72 is lifted to close the communication hole 73. To do. In a state in which the amount of removed material stored is small and the lifting force by the removed material does not act on the float 70, the float 70 is lowered by its own weight, and the valve body 72 moves away from the position where the communication hole 73 is blocked. It will be in the open state located in. When the communication hole 73 is closed by the valve body 72, the exhaust passage is closed.

In the filter processing section 4B, as shown in FIG. 3, the suction fluid that has passed through the communication hole 73 enters the inner peripheral side from the outer peripheral side of the cylindrical filter element 49 as indicated by the arrow in the figure, and the upper lift It is comprised so that it may be sucked into the wind part 3 side.
The filter element 49 is formed in an annular shape by folding a washable cloth-like filter medium into a folded shape, and can finally remove oil mist, dust, welding fume, and the like remaining in the gas phase fluid. It is provided as follows.

[Winding part]
As shown in FIGS. 3 and 6, the wind-up part 3 is provided with a single electric motor 30 in the wind-up case 21 of the case main part 20, and the single electric motor 30. A single wind-up fan 31 is provided at the bottom.
The wind-up fan 31 is provided in a wind-up chamber 32 formed on the upper side of the bottom plate 21A of the wind-up case 21, and the above-described wind-up fan 31 is provided from the lower surface side of the wind-up chamber 32 and the lower opening 32a formed in the bottom plate 21A. It is constituted by a turbofan that sucks the suctioned fluid that has passed through the filter element 49 of the filter processing unit 4B and discharges it in the circumferential direction.

Exhaust openings 33 a are formed at a plurality of locations on the outer periphery of the chamber wall 33 of the wind chamber 32, and further, the outer periphery of the wind chamber 32 is spaced from the chamber wall 33. The provided partition wall 34 is provided integrally, and an exhaust passage r is formed between the chamber wall 33 and the partition wall 34, and between the lower end of the partition wall 34 and the upper surface of the bottom plate 21 </ b> A of the wind-up case 21. Yes.
On the upper side of the exhaust passage r, a shutter member 36 that forms an exhaust chamber 35 outside the partition wall 34 is provided on the outer peripheral side of the partition wall 34 so as to be spaced from the partition wall 34. The shutter member 36 is supported in a lifted state shown in FIG. 6 by a magnet 37 provided in the wind-up case 21 on the upper side of the exhaust chamber 35, and the shutter member 36 is pushed down against the magnetic force of the magnet 37. Then, the exhaust passage r is blocked by the ring-shaped rubber or sponge packing 36a attached to the lower surface side of the shutter member 36, and the processed suction fluid is discharged outward. It is configured so that it can be switched by a one-touch operation to a state in which this is blocked.

If the shutter member 36 is in the floating state shown in FIG. 6, the processed suction fluid discharged from the wind chamber 32 flows through the exhaust passage r as shown in FIG. On the outer peripheral side, the outer peripheral exhaust port 26 formed over the entire periphery between the upper surface of the bottom plate 21A of the wind-up case 21 and the lower surface of the shutter member 36 is configured to be discharged radially outward. Yes.
When the shutter member 36 is pushed down to stop the outward flow of the exhaust passage r, the processed suction fluid discharged from the wind chamber 32 flows into the exhaust chamber 35, and the shutter member 36 The exhaust duct 27 (see FIG. 2) formed at one place on the outer peripheral side is discharged to the outside.

[Reservoir]
As shown in FIG. 3, the storage unit 5 is configured by a storage container 50 mounted on the carriage 1 and formed of a transparent or translucent synthetic resin material so that the inside can be seen through.
The storage container 50 is formed in such a size that the opening edge 50a on the upper end side can be mounted with the flange portion 22B on the lower end side of the dust removal case 22 of the case main portion 20, and the removal object is stored in a predetermined storage amount. Sometimes the float 70 of the float valve 7 is constituted by a container having a size that sets the storage amount so that the float 70 is pushed up by the removed matter.

[Other Embodiment 1]
In said embodiment, although the thing of the structure provided with the single electric motor 30 and the single wind fan 31 in the wind case 21 as the wind part 3 was shown, it is not restricted to this. For example, as shown in FIG. 7, the electric motor 30 and the wind fan 31 may be provided with two pairs, or may be provided with a plurality of pairs.
In the structure shown in FIG. 7, the electric motor 30 and the wind fan 31 have slightly smaller radial dimensions than the single electric motor 30 and the single wind fan 31 described in the above embodiment. The partition wall 38 is provided on the lower surface side of the bottom plate 21A between the lower openings 32a formed on the lower surface side of each wind chamber 32 that includes the wind fan 31. This is different from that of the above-described embodiment in that it is formed so as to guide the suction fluid that has passed through the filter element 49 individually to the independent wind chambers 32 formed every 31.
If the pair of the electric motor 30 and the wind fan 31 is a plurality of pairs of three or more, the number of the wind chambers 32 corresponding to the number of the pairs is formed, and the wind chambers 32 for each group are formed. The partition wall 38 may be provided so that the suction fluid that has passed through the filter element 49 is guided toward the surface.
Other configurations are the same as those of the above-described embodiment.

[Other Embodiment 2]
In the above-described embodiment, the structure in which the suction chamber 40 that swirls and flows the suction fluid is illustrated only in one place is exemplified. However, the present invention is not limited to this, and the suction chamber 40 is provided in a plurality of places, A configuration may be adopted in which processing is performed in stages by sequentially shifting from the suction chamber 40 at the front stage to the suction chamber 40 at the rear stage.
In this case, as the suction chamber 40, the suction chambers 40 having the same structure may be used in multiple stages, but the processing performance with respect to the processing target contained in the suction fluid is different, that is, for example, processing containing a lot of moisture. You may make it use combining the suction chamber 40 with a different processing function, such as the suction chamber 40 with the high processing capability with respect to a thing, or the high processing capability with respect to the fine powder with small mass.
The other configuration is the same as the structure shown in the embodiment.

[Other Embodiment 3]
In the above-described embodiment, as the removal object guide portion 43, the downwardly facing surface 43a spreading outward in the horizontal direction from the lower end of the peripheral wall portion 41, and the cylindrical inner peripheral surface located at the outward side end portion of the downwardly facing surface 43a 43b, and an annular inclined surface 43c that extends radially inward from the lower end of the inner peripheral surface 43b and inclines downward toward the inner side. For example, as shown in FIG. 8 (a), a downward surface 43a spreading outward in the horizontal direction from the lower end of the peripheral wall portion 41 and a cylinder located at the outer side end portion of the downward surface 43a, as shown in FIG. 8b, or a downwardly facing surface 43a extending outward in the horizontal direction from the lower end of the peripheral wall portion 41, and outside of the downwardly facing surface 43a, as shown in FIG. 8 (b). And a cylindrical inner peripheral surface 43b located at the side end. Both may be one constructed from said cylindrical inner circumferential surface 43b extending horizontally from the cylindrical inner side issued a flange portion 43e.
The downward surface 43a of the removal object guide portion 43 does not necessarily have to be a surface along the horizontal direction, but it is desirable to provide it so as to be located radially outward from the extension line 41b of the peripheral wall portion 41. . Thus, by forming so that it may be located in the outer side of the said extension line 41b, it exists in the tendency for the removal thing swirled with the swirl flow in the suction chamber 40 to jump out of a swirl flow outside.
The other configuration is the same as the structure shown in the embodiment.

[4 of other embodiment]
In the above embodiment, the dust removing unit 4 includes the removed material guide unit 43, the exhaust guide chamber 44, and the damming member 46 in addition to the suction chamber 40. However, the present invention is not limited to such a structure. Any one or all of the removed material guide portion 43, the exhaust guide chamber 44, and the blocking member 46 may be omitted or replaced. When the removed material guide portion 43 is omitted, the storage container 50 is directly installed on the lower end side of the suction chamber 40, or the suction chamber 40 is formed in a tapered shape with a smaller diameter at the upper part than at the lower part. For example, a structure in which a straight tubular wall portion is present and the storage container 50 is installed below the wall portion may be used.
The other configuration is the same as the structure shown in the embodiment.

[5 of other embodiments]
The cyclone dust removing device 2 is not limited to the one in which the wind generating unit 3, the dust removing unit 4 and the storage unit 5 are integrally configured as shown in the above embodiment, and each unit is configured separately. They may be used by being arranged at the locations and connected by a flow path of the suction fluid.
The other configuration is the same as the structure shown in the embodiment.

[Sixth Embodiment]
The storage unit 5 is not limited to the storage unit 50 as shown in the above-described embodiment. For example, the storage unit 5 uses a dust storage part provided in a machine tool or the like from the discharge port of the suction chamber 40. And you may make it fall directly there.
The other configuration is the same as the structure shown in the embodiment.

[Seventh Embodiment]
Switching of the exhaust direction in the wind generating part 3 in the above embodiment is not necessarily required, and it may be provided with an exhaust form of only one of the entire circumferential direction or one direction.
The other configuration is the same as the structure shown in the embodiment.

[8 of other embodiments]
The bottom plate 48 is not limited to a hollow three-dimensional structure as shown in the above embodiment, but may be configured by a simple flat plate-like body. In this case, the radial dimension or the height position may be set so as to secure a passage that allows the removed material to fall into the storage container 50 from each suction chamber 40 .
The other configuration is the same as the structure shown in the embodiment.

  The cyclone dust removing device 2 of the present invention is not limited to the one applied to the vacuum cleaner as shown in the embodiment, but can also be applied to various types of dust removal target devices such as stationary dust collectors. In this case, the storage unit 5, the wind generating unit 3, and the dust removing unit 4 of the cyclone dust removing device 2 may be configured separately and provided at different positions.

DESCRIPTION OF SYMBOLS 5 Storage part 25 Intake port 40 Suction chamber 41 Peripheral wall part 41a Outlet port 42a Exhaust port 43 Removed material guide part 46 Damping member 48 Bottom plate 50 Storage container 70 Float 72 Valve body

Claims (3)

An intake port for introducing the suction fluid to be processed, a discharge port for discharging the removed material separated from the introduced suction fluid to the outside of the suction chamber, and a separated material separation. A cyclone dust removing device that communicates with an exhaust port for sucking and deriving a subsequent suction fluid out of the suction chamber,
Said suction chamber, said exhaust port is formed on the upper side, the intake port is connected to a lower portion of the peripheral wall, as well as constituting the discharge port by the lower end opening of the peripheral wall portion, the upper than the lower of the peripheral wall portion Is formed into a tapered shape with a small diameter,
To the lower end side of the discharge port, to the lower side along the peripheral wall portion so as to allow the removed material having a diameter larger than that of the discharge port to flow outside the swirl radius of the swirl flow in the suction chamber. A removal object guide portion composed of an enlarged diameter portion having a downward surface facing outward from the extension line is provided over the entire circumference of the discharge port,
Oh Ri provided reservoir for removal was collected below the discharge port,
A state in which a bottom plate having a diameter smaller than the diameter of the discharge port portion is located at a position facing the discharge port portion of the suction chamber and the entrance opening of the storage portion, and a maximum diameter portion is positioned below the discharge port portion. A cyclone dust remover characterized by being arranged in An upper end side of a tapered damming member whose upper end is smaller in diameter than the lower end side so as to limit the flow of the removal material that travels along the inner surface of the suction chamber to the upper side of the suction chamber. The cyclone dust removing device according to claim 1, wherein A float that is provided with a storage container as the storage section and is pushed up by the removed substance stored in the storage container, and above the suction fluid that has exited the suction chamber as the float is pushed up to a predetermined height position cyclone dust remover according to claim 1 or 2, wherein and a valve body which closes the exhaust passage to the side.

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