JP4596765B2 - Dust collector with dust level detection function - Google Patents

Description

  The present invention relates to a dust collector having a dust level detection function capable of detecting the amount of dust that has been removed from a filter into a dust bucket and collected.

  As for a dust collector provided with a dust collector with a dust level detection function, conventionally, for example, there is a dust collector found in Patent Document 1 or an apparatus found in Patent Document 2.

  In the above-mentioned Patent Document 1, a dust collector configured to suck an air flow containing dust with a blower, filter it by passing through a filter, and deposit the trapped dust on a tray disposed below the filter. The above-mentioned saucer is suspended in a balance-type manner by a lever member (member constituting the lever), and a change in the weight of the saucer due to dust accumulation is detected by a displacement of a detection arm attached to the other end of the lever member. In addition, it is configured to automatically detect that a certain amount of dust has accumulated.

Further, in Patent Document 2, a dust bucket is made of transparent plastic, and a transparent plastic storage bag is expanded and disposed so that dust is collected therein, and the plastic container is stored in the plastic container. There is a description of a dust collector in which the accumulation level of dust accumulated in a bag is detected from the outside of a transparent plastic container by a light beam type level switch. The dust collecting plastic container is provided with a moving caster, and is structured such that when dust is taken out, the dust can be taken out and taken out.
No. 3-15132 JP 2002-320811 A

  However, since the dust collector described in Patent Document 1 has a structure in which the dust tray 8 is placed on the cradle 9 provided in the dust collector, (i) when performing maintenance such as dust removal work, The person approaches the dust collector and works, and the working posture and working environment at that time are not preferable. (B) During taking out of dust, there is a problem that dust is scattered around and harms the working environment. (C) There is a concern that the parts constituting the dust collector, such as the return spring 21 and the cradle 9 may be contaminated or corroded by dust, and it is extremely difficult to clean the dust collection part inside the dust collector. There was a problem that it was.

  On the other hand, in the case of the apparatus described in Patent Document 2, the dust bucket 13 is configured to be able to be pulled out from the dust collector, and the dust is accommodated in a plastic container bag spread and laid in the container. Therefore, it is easy to take out the dust. However, a plastic container or a plastic container bag spread and spread in a plastic container is required to be transparent from the outside because the dust level needs to be easily detected from the outside of the container. Since it must not be handled, the handling was very troublesome.

  Therefore, the technical problem of the present invention is that there is no need to approach the dust collector or perform a recovery operation in an unreasonable posture when taking out the dust. It is an object of the present invention to provide a dust collector with a dust level detection function that is devised so that dust detection and recovery can be performed very easily and accurately without unintentionally fouling or aching.

(1) In order to solve the above technical problem, a dust collector with a dust level detection function according to claim 1 of the present invention filters a dust-containing air flow sucked in by a suction action of a blower, A dust collector configured to discharge filtered clean air out of the machine while collecting dust collected by the filter in a lower dust bucket,
The above dust bucket is configured as an internal / external double structure of an inner bucket that collects dust and an outer bucket that contains this inner bucket, and the entire dust bucket is attached to and detached from the dust collector body that contains the filter. It is configured to be freely movable and detachable,
In the outer bucket, an elastic support member that elastically supports the inner bucket, and an increase in the weight of the collected dust causes the inner bucket to fall to a predetermined position against the support of the elastic support member. A displacement magnifying lever that is pushed and rotated by the outer peripheral bottom of the inner bucket , and a rotation displacing member constituted by a reflecting plate attached to the displacement magnifying lever ;
On the main body side of the dust collector equipped with the blower, when the displacement is detected by monitoring the displacement state of the rotational displacement member in a non-contact manner from the reflected light of the light applied to the reflector plate. An active reflective sensor is provided as a rotational displacement detector that emits a signal for notifying that the dust is full.

( 2 ) Further, according to the present invention, as described in claim 2 , the guide shaft projects upward on the inner bottom surface of the outer bucket, and the upper end portion of the guide shaft is vertically moved with respect to the inner bucket bottom plate. The guide shaft is fitted with a coil spring as the elastic support member, and the displacement enlarging lever is pressed to the outer bottom of the inner bucket when the inner bucket is lowered. And a stopper for stopping the lowering of the inner bucket at the lowest position is provided on the bottom surface of the inner bucket.

( 3 ) Further, according to the present invention, as described in claim 3 , the main body of the dust collector is installed on the floor surface, and the airframe containing the filter is integrally attached to the main body. The above-mentioned dust bucket is attached detachably and detachably.

( 4 ) Further, the present invention is characterized in that, as described in claim 4 , a lifter capable of moving the dust bucket up and down is provided on the main body side of the dust collector.

( 5 ) Further, according to the present invention, as described in claim 5 , the main body of the dust collector is configured to be movable, and a machine body containing the filter is integrally attached to the main body. Further, the above-mentioned dust bucket is detachably attached and detachably attached.

According to the means described in the above (1) and (2) , the inner bucket descends to a predetermined position against the support of the elastic support member due to the increased weight of the collected dust, and the rotational displacement member rotates. When it is displaced , the active reflective optical sensor as a rotational displacement detector detects this and emits a signal. This signal automatically stops the operation of the dust collector, or it is used by a lamp, buzzer, etc. Since dust full can be notified, the collected dust can be reliably disposed of.

Further, according to the means described in the above (1 ) and (2) , the dust bucket is configured to have an inner / outer double configuration of the inner bucket and the outer bucket, and the dust is collected inside the inner bucket. Other than the bucket, that is, the outer bucket, the rotational displacement member, the rotational displacement detector, etc. are not contaminated by dust, and maintenance such as device cleaning can be easily performed, and detection errors due to dust adhesion Such troubles can be prevented.

  In addition, it is not necessary to use a transparent dust container or bag, and it is sufficient to use an ordinary dust bucket, so it is economical and an electric sensor for detecting the amount of dust on the dust bucket side. It is possible to reduce the occurrence of accidents and electrical troubles that occur when the dust bucket is removed and transported because the electrical structure is provided on the main body side of the dust collector. .

In addition, according to the means described in ( 1 ) above, the displacement magnifying lever constituting the rotational displacement member is used to sensitively detect the timing at which the inner bucket is lowered to a predetermined position due to the increase in weight, and the displacement of the reflector is reduced. Since it expands, it is possible to accurately catch the displacement of the rotational displacement member by the reflection type optical sensor and reliably notify the dust full state.

Further, according to the means described in the above ( 2 ), the lowering operation of the inner bucket due to the increase in the weight of dust and the rising operation of the inner bucket by the coil spring after dust discharge are guided by the guide shaft equipped with the coil spring and stabilized. Since the stopper is provided so as to stop at the lower limit when the inner bucket is lowered, it is possible to prevent an accident such as damage to the device or the coil spring due to overload.

According to the means described in the above ( 3 ) and ( 4 ), the dust collector with the dust level detection function according to the present invention can be used as a fixed device in which the main body of the dust collector is installed on the floor surface. It is possible to easily attach and remove the dust bucket to and from the machine body provided on the machine body using the lifter and quietly without scattering dust collected inside during removal. Moreover, since the removed dust bucket has wheels, it can be moved as it is.

According to the means described in ( 5 ) above, the dust collector with a dust level detection function according to the present invention can be used as a mobile dust collector (vacuum cleaner) configured to be movable.

As described above, according to the dust collector with a dust level detection function according to the present invention, when the collected dust is full, a signal is sent to inform the dust full state, and the operation of the dust collector is stopped, a buzzer or a lamp is used. Since the full state can be notified by, etc., it is possible to eliminate the concern that the collected dust overflows from the dust bucket and stains the surroundings .

In addition, the dust bucket has an internal / external double structure, so there is no concern that the recovered bucket will contaminate the outer bucket, detector, or other related parts. Can be done automatically. Furthermore, since maintenance ease der Rutotomoni, the amount of dust sensor or the like is configured not affected by dust, handling is simple, it is possible to provide a highly reliable dust collector.

  Preferred embodiments of a dust collector with a dust level detection function according to the present invention will be described below with reference to the drawings.

  1 to 3 illustrate the configuration of a dust collector with a dust level detection function according to a first embodiment of the present invention. FIG. 1 is a front view thereof, FIG. 2 is a side view, and FIG. In these drawings, the reference numeral 1 generally indicates the dust collector body (dust collection tank) in which the filter 4 is housed in the interior 1H, and is also generally indicated by the reference numeral 10. A fixed dust collector main body installed on the floor or the like, and the above-mentioned airframe 1 having a substantially tank structure with an open bottom surface maintains a predetermined height on one side of the dust collector main body 10. It is fixed to the state.

  11 is a support leg for supporting the dust collector main body 10 at a predetermined height on the floor surface, 11S is an angle constructed between the support legs 11, 11T is a machine base on which the dust collector main body 10 is placed, 12 and 12S Is a blower motor and blower mounted inside the dust collector main body 10, and 13 is a drive belt. When the blower 12S rotates, the blower 12S rotates and exerts a suction action on the airframe 1 and is connected to the suction port 1S '. And 1K through which dust-containing air is sucked into the machine body 1 and the sucked dust-containing air is filtered by the filter 4 and the filtered purified air is exhausted to the outside through the exhaust port 15 provided in the upper part of the main body. ing.

  2 is an outer bucket that is configured to be airtightly attached to and detached from the lower end of the airframe 1 using a plurality of clamps 5... In this state, the inner bucket 9 is housed so as to be movable up and down, and a dust bucket K is constituted by these inner and outer buckets 9 and 2. 2K is a handle portion provided on the front surface of the outer bucket 2, 20 is a guide shaft for guiding the vertical movement of the inner bucket 9, and this guide shaft 20 is formed to project upward at the center of the inner bottom surface of the outer bucket 2. Yes.

  3 and 3 are free wheels provided on the bottom surface of the outer bucket 2, 6 is an upper cover that is detachably mounted on the upper surface opening of the machine body 1, and 7 is a filter wipe-off handle attached to the upper cover 6. When operated, the structure is such that the dust adhering to the filter 4 is wiped off to the lower inner bucket 9. Reference numeral 8 denotes a handle attached to the airframe 1, 1X denotes a tip suction port of the dust suction duct 1K, 14 denotes an electrical box provided in the main body 10, and 14S denotes a push button switch for the motor 12.

  Next, the internal structure of the present invention will be described according to the description of the cross-sectional view shown in FIG. 3. 9S is a guide ring attached to the outer periphery of the upper end of the inner bucket 9, and 21 and 21 are in contact with the guide ring 9S. An inner bucket guide for guiding the vertical movement of the bucket 9, 9Z is a bottom plate of the inner bucket 9, 22 is a substantially dish-shaped support bracket attached to the inner bottom surface of the outer bucket 2, and 23 is attached to the upper surface portion of the support bracket 22 A support plate is attached to the center portion of the support plate 23 so that the above-described guide shaft 20 protrudes upward, and its tip portion penetrates the bottom plate of the inner bucket 9 and the base 9Z attached to the bottom plate. Is inserted.

  20A is a lower end mounting portion of the guide shaft 20, and 24 is a coil spring as an elastic support member attached to the guide shaft 20. The upper and lower ends of the coil spring 24 are located between the base 9Z of the inner bucket 9 and the support plate 23. The inner bucket 9 is elastically contacted, and the entire inner bucket 9 is always elastically supported upward. As the weight of the dust collected in the inner bucket 9 increases, the inner bucket 9 gradually descends while compressing the coil spring 24. ing.

  9X is a cover for the upper end of the guide shaft 20 provided on the inner bottom surface of the inner bucket 9, and 25 and 26 are two stoppers projecting downward on the bottom surface of the inner bucket 9, and by increasing the weight of the dust When the inner bucket 9 is lowered while compressing the coil spring 24, the lower end of one short stopper 25 is in contact with the upper surface of the support plate 23, and the lower end of the other long stopper 26 is a small hole (illustrated in the support plate 23). (Not shown) is in contact with the inner bottom surface of the outer bucket 2, and the lowering of the inner bucket 9 is stopped at the lowest position.

Next, reference numeral 32 denotes a pressing rotation piece (dog) attached in a state of protruding downward to the lower outer peripheral portion of the inner bucket 9 using the attachment tool 31, and 29 denotes the outer bucket 2 using the attachment plate 28. a displacement amplifying lever as a rotation displacement member on the upper surface of the support bracket 22 provided on the inner bottom portion of the mounted freely vertically rotated, the distal end portion of the lever 29 constituting the pivoting displacement member A reflector 30 is attached.

  When the inner bucket 9 is in the upper position as shown in FIG. 3, the displacement magnifying lever 29 is maintained in a horizontal state by its own weight or a spring. When the lower limit position is reached, the pressing rotation piece 32 presses the root end portion side of the displacement enlarging lever 29, and the tip end side is turned obliquely upward as shown in FIG. 3, and the reflector 30 attached to the tip end is inclined. It is comprised so that rotation displacement may be carried out to an upper position.

  On the other hand, 17 is an active reflection type optical sensor as a rotational displacement detector mounted in a cover 16 provided on the dust collector main body 10 side. The sensor 17 has an inner bucket 9 as shown in FIG. During normal dust collection operation at the upper position, the light emitted by itself is applied to the reflector 30 through the transparent window 27 provided on the lower outer wall of the outer bucket 2, and the reflected light is irradiated. Is detected (recognized), but the inner bucket 9 is lowered to the lowest position and the reflecting plate 30 is pivoted upward, and the reflected light is received. When it runs out, it recognizes that the dust in the inner bucket 9 is full and issues a signal to stop the dust collection operation (operation of the blower motor 12) of the dust collector or it is full It is structured to issue an alarm signal to inform .

  1 to 3, reference numeral 18 denotes a foot petal provided on the outer side of the outer bucket 2, and an intermediate part of the petal 18 constituting the lift is a rotation fulcrum 18A that contacts the floor surface side. The tip end portion is formed as a push-up portion 18T for contacting and pushing up the bottom surface of the outer bucket 2. Further, in FIG. 3, reference numeral 19 denotes a mounting rod in which the root end portion 19 </ b> A is attached to the angle 11 </ b> S of the support leg 11 described above. ing.

  The foot petal 18 configured as described above, by stepping on it with the foot, pushes up the entire dust bucket K composed of the inner and outer buckets 9 and 2 to assist the mounting to the body 1 by the clamps 5. When the dust buckets K are removed from the machine body 1 by removing the clamps 5 ..., the dust buckets K can be lowered onto the floor surface while being supported from below.

  As described above, the dust bucket K supported by the foot petal 18 and removed from the airframe 1 can be easily moved using the free wheels 3... And the dust collected in the inner bucket 9 can be discarded in a predetermined place. it can. In actual use, a bag-like dust pack for storing dust is housed inside the inner bucket 9 to further facilitate the disposal of dust. In FIG. 1 and FIG. 2, 11 </ b> A... Is a guide member that guides the lifting operation of the dust bucket K by the foot petal 18.

  4 to 6 show that the present invention is applied to a mobile dust collector (traveling cleaner) configured to collect dust while traveling the entire dust collector body 40 using traveling wheels 44. The configuration on the airframe 1 and the dust bucket side, and the configuration on the dust level detection side, which is the main part of the present invention, are all the same as those described in the first embodiment. Therefore, the same members as those shown in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted. Here, only the unique configuration according to the second embodiment will be described.

  4 is a side view illustrating the configuration of the present invention according to the second embodiment, FIG. 5 is a front view thereof, and FIG. 6 is an enlarged cross-sectional view illustrating the configuration of the main part. In these drawings, reference numeral 41 denotes Maintenance door provided on the main body 40, 42 and 43 are dust collecting blowers and their motors provided inside the main body, 43X is a drive belt, 45 is an exhaust port for clean air, 46 is an electrical box, and 50 is a power cord. 1T is a dust-containing air suction port provided in the airframe 1. A dust collecting hose (not shown) is attached to the suction port 1T to which the suction action of the blower 42 is applied. Used for cleaning.

  Reference numeral 40H denotes a holding portion provided on the front side of the main body 40. The airframe 1 is fitted and fixed in the holding portion 40H, and the dust bucket K including the inner and outer buckets 9 and 2 is held by the holding portion 40H. It is structured so that it can be attached to and detached from the airframe 1 while being guided on both sides.

  According to the dust collector with the dust level detection function according to the second embodiment of the present invention configured as described above, the dust on the floor surface or the road surface is sucked using the dust collecting hose while traveling on the floor surface or the road surface. When the inner bucket 9 is lowered to the lowest position due to an increase in the weight of the collected dust, the reflector 30 is rotated and detected by the active reflective optical sensor 17. Then, the dust collection operation by the blower motor 43 can be stopped or an alarm signal can be issued to notify that the inner bucket 9 is full. The dust bucket K filled with dust can be moved to an arbitrary location using the free wheels 3 by removing the clamps 5 and separating from the bottom of the airframe 1 to discard the dust. .

The side view explaining the composition of the dust collector with a dust level detection function concerning Example 1 of the present invention. Similarly, a partially omitted front view. Sectional drawing which expanded and showed the structure of the principal part. The side view explaining the structure of the dust collector with a dust level detection function which concerns on Example 2 of this invention. Similarly front view. Sectional drawing which expanded and showed the structure of the principal part.

DESCRIPTION OF SYMBOLS 1 Dust collector body K Dust bucket 2 Outer bucket 3 Swivel wheel 4 Filter 5 Clamp 9 Inner bucket 10, 40 Dust collector main body 17 Active reflection type sensor 18 Foot petal 20 Guide shaft 24 Coil spring 25, 26 Stopper 29 Displacement expansion lever 30 Reflection plate 32 Press rotation piece (dock)

Claims (5)

The dusty airflow sucked in by the blower is filtered by a filter, and the filtered clean air is discharged outside the machine, while the dust collected by the filter is dropped into the lower dust bucket. A dust collector configured to collect,
The above dust bucket is configured as an internal / external double structure of an inner bucket that collects dust and an outer bucket that contains this inner bucket, and the entire dust bucket is attached to and detached from the dust collector body that contains the filter. It is configured to be freely movable and detachable,
In the outer bucket, an elastic support member that elastically supports the inner bucket, and an increase in the weight of the collected dust causes the inner bucket to fall to a predetermined position against the support of the elastic support member. A displacement magnifying lever that is pushed and rotated by the outer peripheral bottom of the inner bucket , and a rotation displacing member constituted by a reflecting plate attached to the displacement magnifying lever ;
On the main body side of the dust collector equipped with the blower, when the displacement is detected by monitoring the displacement state of the rotational displacement member in a non-contact manner from the reflected light of the light applied to the reflector plate. A dust collector with a dust level detection function, characterized in that an active reflective sensor is provided as a rotational displacement detector that emits a signal for informing a dust full state.   A guide shaft projects upward on the inner bottom surface of the outer bucket, and the upper end portion of the guide shaft is inserted into the inner bucket bottom plate so as to be vertically movable, and the guide shaft serves as the elastic support member. Are attached to the bottom of the outer periphery of the inner bucket, and a pressing rotation piece is provided on the bottom of the inner bucket to press and rotate the displacement enlarging lever when the inner bucket is lowered. 2. A dust collector with a dust level detection function according to claim 1, further comprising a stopper for stopping the lowering of the inner bucket at the lowest position. The main body of the dust collector is installed on the floor, the airframe containing the filter is integrally attached to the main body, and the dust bucket is detachably and detachably attached to the lower side of the airframe. The dust collector with a dust level detection function according to claim 1 or 2. 4. The dust collector with a dust level detection function according to claim 1, wherein a lifter capable of moving the dust bucket up and down is provided on the main body side of the dust collector. The main body of the dust collector is configured to be movable, the airframe containing the filter is integrally attached to the main body, and the dust bucket is detachably and detachably attached to the lower side of the airframe. dust level detection function dust collector according to claim 1 or 2, characterized in that is.

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