KR100932786B1 - Dust collector for bookstack - Google Patents

Abstract

PURPOSE: A dust collector for a bookshelf is provided to suck and discharge the air of high pressure according to the bookshelf, and to collect foreign materials piled up on the bookshelf with an alert. CONSTITUTION: A dust collector for a bookshelf includes a cabinet(50), a scattering unit, a dust collecting unit, and a fan. The cabinet is moved according to the bookshelf(1). The dust collecting unit includes a warning member warning an over-collected state of foreign materials. The scattering unit includes a discharge nozzle of a hole shape and an exhaust duct(64). The dust collecting unit includes a suction nozzle(72), a suction duct(74), and a filter(76). The suction nozzle includes a filter net(72a) filtering the foreign materials of the predetermined size.

Description

Bookshelf dust collector {DUST COLLECTOR FOR BOOKSTACK}

The present invention relates to a device for cleaning a bookshelf, and more particularly, to a bookshelf dust collector for collecting and removing foreign matter on the bookshelf.

Generally, the shelves installed in libraries or archives accumulate foreign objects such as dust. Such foreign matter is usually cleaned by a person. However, when a large number of bookshelves in a large library or library are cleaned by humans, the time and labor costs are excessively excessive, and dust is scattered, so it is possible to clean only at night time without people.

Recently, a device for automatically collecting dust on a shelf has been developed to compensate for this drawback. Such a device is most representative of the "decorative cabinet installed ventilation device" disclosed in Republic of Korea Utility Model Registration No. 400583 (2005.11.01). Such a cabinet is collected in a filter by forcibly circulating foreign matters such as dust present on the shelf of the shelf as the fan-type air circulation device installed on the shelf of the shelf operates.

However, such a prior art device has a problem in that all of the existing shelves have to be retrofitted or newly installed because the air circulation device and the filter must be installed on the shelf.

In addition, since the air circulation device circulates the air in a fixed state on the shelf, foreign matters such as dust are scattered to the outside of the bookshelf, and there is a problem that the collection effect is very poor.

In addition, there is a problem in that the shelves installed on each floor of the shelf act as an obstacle, so that foreign matters of each shelf of the shelf cannot be actually collected.

The present invention was created in order to solve the above-mentioned conventional problems, and at the same time to discharge the high-pressure air to one side of the shelf while sucking the air discharged from the other side of the shelf, it is possible to collect the foreign matter accumulated on the shelf, It is an object of the present invention to provide a dust collector for a shelf having a configuration that automatically detects and warns that excessive foreign matter is collected.

In particular, the object of the present invention is to provide a dust collector for discharging and suctioning high-pressure air while moving along the shelf in close contact with the shelf.

Another object of the present invention is to provide a dust collector for a bookshelf provided with a mechanism capable of inhaling the discharged high pressure air within a predetermined range.

In addition, another object of the present invention is to provide a dust collector for a shelf having a member capable of guiding discharged high pressure air in a suction direction.

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The bookshelf dust collector according to the present invention for achieving the above object, the bookshelf dust collector for removing the foreign matter accumulated on the bookshelf, the cabinet moving in close contact with the bookshelf; A scattering unit configured to discharge high-pressure air supplied from the inside of the cabinet to one side of the cabinet in close contact with the bookshelf to scatter foreign matters accumulated on the bookshelf; A dust collecting unit for collecting and collecting the foreign matter scattered by the scattering unit to the other side of the cabinet by a suction force provided in the cabinet; And a fan for respectively providing suction force and high pressure air to the dust collecting unit and the scattering unit, respectively, in the cabinet, and further comprising a warning member that warns that the foreign matter is excessively collected in the dust collecting unit.

The scattering unit, for example, is provided on one side of the cabinet to correspond to the bookshelf, the discharge nozzle of the hole shape for discharging high-pressure air supplied from the fan to the bookshelf; One side is connected to the discharge nozzle, the other side is connected to the discharge port side of the fan to supply a high-pressure air discharged from the fan to the discharge nozzle, comprising an exhaust duct for exhausting the high-pressure air through the discharge nozzle Can be.

The dust collecting unit may include, for example, a suction nozzle having a hole provided at the other side of the cabinet to face the bookshelf, and sucks foreign matter scattered by the scattering unit; One side is connected to the suction nozzle, the other side is in communication with the inlet port of the fan to provide the suction force generated in the fan to the suction nozzle, the intake intake duct to guide the foreign matter sucked into the suction nozzle into the interior of the cabinet and ; It may be configured to include a filter that is interposed between the intake duct and the fan to filter foreign matter introduced into the intake duct.

The suction nozzle may further include a filter network for filtering a foreign matter having a predetermined size from the foreign matter that is scattered and sucked by the scattering unit.

The present invention further includes a foreign matter leakage preventing member that provides a protruding jaw along the edge of the close contact surface of the cabinet to be in close contact with the bookshelf to prevent foreign matter scattered by the discharge unit from leaking outward to the outside of the close contact surface of the cabinet. Can be configured.

The foreign matter leakage preventing member may be configured as, for example, an edge bar mounted along the edge of the close contact surface of the cabinet.

The edge bar may be mounted to the cabinet in a rotatable state by a mounting member. The mounting member is preferably fixed to the close contact surface of the cabinet, it is preferable to constitute a fixed shaft that the edge bar is rotatably fitted.

The present invention, it is necessary to further comprise a discharge air inducing member for guiding the high-pressure air discharged from one side of the cabinet by the scattering unit to the other side of the cabinet.

The discharge air inducing member may be configured, for example, as a blade provided at the discharge portion to the scattering unit while having an inclination in a state of facing the other side of the cabinet.

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The warning member may be configured, for example, by measuring a suction force of the dust collecting unit to indicate that the suction force is attenuated by foreign matter.

On the contrary, the warning member may include, for example, a suction force detector for detecting a suction force of the dust collecting unit; A comparison unit comparing the detected value detected by the suction force detector with a set value; It may be configured to include an alert to provide a warning light or a warning sound if the detected value compared in the comparison unit is different from the set value.

On the other hand, the warning member, for example, a suction force detector for detecting the suction force of the dust collection unit; A discharge pressure sensor for detecting a discharge pressure of air discharged from the scattering unit; A comparing unit comparing a difference between the detected values detected by the discharge pressure detector and the suction force detector with a set value; It may be configured to include an alert for providing a warning light or a warning sound if the difference between the detected value compared in the comparison unit is different from the set value.

The dust collector for the bookshelf according to the present invention as described above, while the cabinet is moved along the shelf, the dust is collected by inhaling contaminated air mixed with the foreign matter through the dust collection unit while scattering the foreign matter of the bookshelf with high-pressure air through the scattering unit. There is an effect that it is easy to automatically remove foreign matters accumulated on the shelves without the need to remodel or replace the shelves, and when to replace the filter to collect the foreign substances through a warning member that warns of excessive collection of foreign substances in the dust collection unit. There is also an effect that can be easily identified.

In addition, the rim bar, which is a foreign matter leakage preventing member, isolates the contaminated air and prevents foreign matters from leaking out of the cabinet, thereby collecting most foreign matters scattered.

In particular, when the rim bar is rotatably mounted in the cabinet, the cabinet, which is in close contact with the shelf, can be easily moved in a state in which the cabinet is in close contact with the shelf.

In addition, when providing the discharge air induction member for guiding the discharge air of the scattering unit to the other side of the cabinet to guide the suction nozzle there is also an effect that can effectively collect and collect contaminated air.

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Hereinafter, a bookshelf dust collector according to the present invention will be described with reference to the accompanying drawings as follows, and FIG. 1 is a perspective view of a bookshelf dust collector according to a first embodiment of the present invention, and FIG. Figure 3 is a side view of the bookshelf dust collector shown, Figure 3 is a plan view of the bookshelf dust collector shown in FIG. 4 is a longitudinal sectional view schematically showing the configuration of a bookshelf dust collector shown in FIG. 1.

Referring to FIG. 1, the dust collector for a bookshelf according to the first embodiment of the present invention includes a cabinet 50 having discharge nozzles 62 and suction nozzles 72 on one side and the other side, respectively. As shown, the cabinet 50 may be moved by a canister CA installed at a lower portion thereof. The cabinet 50 may be provided with a handle HD as shown. In addition, the cabinet 50 may be provided with a drawer VS having a handle as shown.

The cabinet 50 discharges the high pressure air provided from the fan through the discharge nozzle 62 on one side when the internal fan described later is operated by the controller CT on the side, and discharges the suction nozzle 72 on the other side. Inhale air through. At this time, when the discharge nozzle 62 is in front of the cabinet 50, that is, one side surface provided with the suction nozzle 72 is in close contact with the bookshelf (not shown), the discharge nozzle 62 scatters foreign substances such as dust accumulated on the bookshelf while discharging high-pressure air. . As described above, the suction nozzle 72 sucks the high pressure air discharged from the discharge nozzle 62 together with the foreign matter scattered. Of course, the suction nozzle 72 sucks the discharge air together with the foreign matters of the shelves as the air discharged from the discharge nozzles 62 is distributed laterally while being reflected on the shelves.

Here, the above-described discharge nozzle 62 is preferably configured in a slit form as shown so that the air supplied from the fan to be described later is injected at a high pressure. The discharge nozzle 62 may be provided with a blade 69 on the side as shown enlarged in the upper left of the figure. The blade 69 is preferably installed in the cabinet 50 along the discharge nozzle 62 as shown. The blade 69 is installed so as to have an inclination β toward the suction nozzle 72 on the horizontal axis X as shown in an enlarged manner so that the air discharged from the discharge nozzle 62 is directed toward the suction nozzle 72 on the side. desirable. That is, the blade 69 guides the discharged air to the suction nozzle 72.

In addition, the suction nozzle 72 is preferably formed as a long hole wider than the discharge nozzle 62 as shown. The suction nozzle 72 may be provided with a filter net (72a) as shown. The filter network 72a filters foreign substances having a predetermined size from foreign substances introduced together with the discharged air. That is, foreign matter having a size larger than the mesh of the filter net 72a is filtered by the filter net 72a.

On the other hand, the cabinet 50 is in close contact with the shelves not shown, one side provided with the discharge nozzle 62 and the suction nozzle 72 as shown. Cabinet 50 may be provided with one side that is in close contact with the shelf, that is, the edge bar 59 as shown in the close contact.

Edge bar 59 is provided along the contact surface edge of the cabinet 50 as shown. The edge bar 59 provides a protruding jaw along the contact surface edge of the cabinet 50 as shown. Therefore, the edge bar 59 shields between the close surface (one side) of the cabinet 50 and the shelf when the cabinet 50 is in close contact with the shelf.

The rim bar 59 may be made of plastic, rubber, or urethane, and may be formed in a cylindrical shape as shown in the figure or in a rod shape as shown. The edge bar 59 may be fixed to the close contact surface of the cabinet 50 through a fixed shaft 59a fixed to the cabinet 50 as shown in an enlarged upper right side of the drawing. The edge bar 59 is preferably configured to rotate about the fixed shaft (59a).

Meanwhile, the cabinet 50 may be provided with a check door DR, a drawer VS, and a gauge 98a as shown. Here, the above-described inspection door DR is installed to open and close a part of the cabinet 50. In addition, the drawer VS is a member that collects foreign matter introduced into the cabinet 50. In addition, the gauge 98a displays the pressure of the intake duct described later to warn the replacement timing of the filter described later.

Referring to FIG. 2, the cabinet 50 has an exhaust duct 64, an intake duct 74, a filter 76, and a fan 82 installed therein as shown by a hidden line.

The exhaust duct 64 is connected to one side of the discharge nozzle 62 described above, and the other side is connected to the discharge port 82b side of the fan 82 as shown by the hidden line. Accordingly, the exhaust duct 64 supplies the high pressure discharge air discharged from the fan 82 to the nozzle nozzle 62.

The intake duct 74 has one side connected to the above-described suction nozzle 72 and the other side communicates with the intake port 82a side of the fan 82 as shown by the hidden line. At this time, the intake duct 74 communicates with the intake port 82a side of the fan 82 through the chamber CB in which the inlet port 82a side of the fan 82 is built. That is, the intake duct 74 is indirectly communicated through the chamber CB without directly communicating with the inlet port 82a side of the fan 82.

The filter 76 is interposed between the discharge side of the intake duct 74 and the fan 82 as shown by the hidden line. This filter 76 filters the foreign matter flowing into the intake duct 72.

Referring to FIG. 3, the exhaust duct 64 has one side where air is discharged, as shown by a hidden line, connected to the discharge nozzle 62, and the other side where air is introduced to the discharge port 82b side of the fan 82. Connected. Accordingly, the exhaust duct 64 guides the air discharged from the fan 82 to the nozzle nozzle 62 as shown.

The intake duct 74 has one side into which air is introduced into the suction nozzle 72, and the other side through which the air flows out is connected to the inlet port 82a of the fan 82 through the filter 76, as shown by a hidden line. Communicating. Therefore, the intake duct 74 guides the air introduced from the suction nozzle 72 to the fan 82 through the filter 76.

Referring to FIG. 4, the fan 82 is composed of one as shown in the drawing, and as the rotary rotor inside is rotated, the high pressure air is blown to the exhaust duct 64 through the discharge port 82b and at the same time through the intake port 82a. The air flowing in from the intake duct 74 is taken in. Therefore, the air blown by the fan 82 circulates while being re-introduced.

On the other hand, the drawer VS collects large particles of foreign matter flowing through the intake duct 74 as shown. At this time, the drawer VS collects the foreign matter lowered to the bottom by the load as shown.

On the other hand, the chamber CB may be provided with a soundproof material composed of a sound absorbing material or a sound insulating material not shown therein. The soundproof material may be composed of foam, sponge or rubber or sound-absorbing plate. This sound insulation material subtracts the noise generated from the fan 82.

Referring to Figures 1 and 4 attached to the operation of the bookshelf dust collector according to the first embodiment of the present invention configured as described above are as follows.

Referring to FIG. 1, the cabinet 50 moves when the user grabs and pushes the handle 50. The cabinet 50 moves in a state in which one side of the discharge nozzle 62 is provided in close contact with a shelf not shown. At this time, the edge bar 59 is rotated about the fixed shaft (59a) as shown in the enlarged upper right by the movement of the cabinet 50 in a state in close contact with the shelf. Therefore, the cabinet 50 moves smoothly in a state where one side is in close contact with the shelf.

The cabinet 50 discharges the high pressure air to the bookshelf through the discharge nozzle 62 as the fan (not shown) is operated by the operation of the controller CT. At this time, the blade 69 guides the high-pressure air discharged by the inclination β toward the side suction nozzle 72, as shown in the upper left of the figure.

Referring to FIG. 4, the rim bar 59 is in close contact with the bookshelf 1 to shield the bookshelf 1 from the close contact surface of the cabinet 50.

The exhaust duct 64 supplies the high pressure air discharged from the fan 82 to the discharge nozzle 62 described above. Of course, the discharge nozzle 62 discharges the high pressure air to the shelf (1). Therefore, the high-pressure air scatters foreign matters accumulated on the bookshelf 1. At this time, the foreign matter scattered is not leaked to the outside of the cabinet 50 by the rim bar 59 is isolated inside the rim bar 59 with the high-pressure air. That is, the air contaminated by mixing foreign matter is isolated inside the rim bar 59.

The intake duct 74 intakes the contaminated air isolated from the rim bar 59 by the operation of the fan 82 to guide the intake port side of the fan 82. At this time, the filter network 72a passes only particles smaller than its own mesh and filters the larger particles. Then, the filter 76 filters the foreign matter of small particles introduced into the filter network 72a.

On the other hand, the gauge 98a expresses the suction force, that is, the pressure of the intake duct 74. This gauge 98a indicates a warning position when foreign matter is excessively collected in the filter 76 and the pressure of the intake duct 74 is attenuated. Therefore, the user can confirm the replacement timing of the filter 76 through the gauge 98a. That is, the user may replace the filter 76 when the gauge 98a displays a warning position.

On the other hand, the drawer VS does not flow into the filter 76 by the load and collects the debris that has fallen. Therefore, the user may empty the drawer VS periodically.

On the other hand, Figure 5 attached is a side view of a dust collector for a shelf according to a second embodiment of the present invention. The dust collector for the bookshelf according to the second embodiment of the present invention has the same configuration as that of the first embodiment described above, except that a fan 84 for performing only intake as shown in the drawing is additionally provided. . That is, the second embodiment is different from the first embodiment in that a plurality of fans 82 and 84 are configured. Accordingly, in the second embodiment, each of the fans 82 and 84 performs discharge and suction, respectively. Accordingly, the bookshelf dust collector according to the second embodiment has better suction force than the first embodiment.

On the other hand, Figure 6 is a perspective view of a dust collector for a bookshelf according to a third embodiment of the present invention. The bookshelf dust collector according to the third embodiment of the present invention has the same configuration as that of the first embodiment described above, except that the suction nozzle 72 is inclined as shown in the drawing. At this time, the suction nozzle 72 has an inclination opposite to the discharge nozzle 62 as shown. Accordingly, since the suction nozzle 72 sucks the contaminated air in an inclined state as shown in an enlarged view, the suction nozzle 72 can suck the contaminated air more smoothly. Therefore, the dust collector for the bookshelf according to the third embodiment has better suction efficiency of contaminated air than the above-described embodiments.

Here, the discharge nozzle 62 described above may also be inclined like the suction nozzle 72. Obviously, the discharge nozzle 62 should be inclined toward the suction nozzle 72. Since the inclination of the discharge nozzle 62 can be replaced by the inclination of the suction nozzle 72, the description can be easily understood by those skilled in the art, and thus a detailed description thereof will be omitted.

On the other hand, Figure 7 is a perspective view of a dust collector for a bookshelf according to a fourth embodiment of the present invention. The bookshelf dust collector according to the fourth embodiment of the present invention has the same configuration as that of the above-described first embodiment, except that the tubular nozzle capable of injecting high-pressure compressed air to the side of the discharge nozzle 62 described above ( 62 ') is further provided from the first embodiment. Therefore, only these differences will be described with reference to the accompanying drawings.

As shown, the shelf dust collector according to the fourth embodiment of the present invention is provided with a tubular nozzle 62 ′ in the cabinet 50 . The tubular nozzle 62 ' is preferably provided adjacent to the discharge nozzle 62 as shown . Tubular nozzle (62) is un-shown in producing extruded air is built into the cabinet 50 High pressure compressed air is injected by the accumulator . Thus, the document is a dust collector for photographing according to the fourth embodiment is more flexibility in the foreign matter of the shelf Not only can it be scattered, but also the dust can be effectively collected by scattering foreign materials stacked for a long time. Since the configuration according to the fourth embodiment is easily understood by those skilled in the art, a detailed description thereof will be omitted.

Where Tubular nozzle 62 '  As shown Discharge nozzle 62 and  Can be arranged together, otherwise The discharge nozzle 62  It may be provided alone without. sure, Tubular nozzle 62 '  When provided alone, the dust is collected only by the compressed air. However, Tubular nozzle 62 ' For bookshelves  As the dust collector is shown to have various functions Discharge nozzle 62 and  It is preferred to be provided together.

On the other hand, Figure 8 is a block diagram showing another embodiment of the warning member applied to the present invention. Warning member according to another embodiment may be configured to include a suction force detector 92, the comparison unit 96 and the aller 98 as shown. The suction force detector 92 senses the pressure inside the intake duct 74 described above. The comparator 96 compares the detected value detected by the suction force detector 92 with the set value. At this time, the comparator 96 compares whether the above-described filter 76 is excessively collected and the detected value applied from the suction force detector 92 is lower than the set pressure of the intake duct 74. The alert 98 is composed of an alarm or a warning light to provide a warning light or a warning sound when the detected values compared in the comparator differ from the set values. That is, the aller 98 provides a warning light or a warning sound when the pressure of the intake duct 74 is lower than the set detection value. Thus, the user replaces the filter 76 described above when a warning light or warning sound is emitted from the aller 98.

This warning member may further include a discharge pressure sensor 96 as shown by the broken line. The discharge pressure detector 96 detects the pressure of the exhaust duct 64 and applies the sensed value to the comparator 96. Therefore, the comparator 96 compares the difference between the sensed values detected by the discharge pressure detector 94 and the suction force detector 92 with the set value. Of course, the aller 98 provides a warning light or a warning sound when the difference between the detected values compared by the comparator 96 is different from the set value.

Since the above embodiments are merely illustrative of preferred embodiments of the present invention, the scope of application of the present invention is not limited to the above, and appropriate modifications are possible within the scope of the same idea. Therefore, since the shape and structure of each component shown in the embodiment of the present invention can be carried out by deformation, it is natural that the modification of the shape and structure belong to the appended claims of the present invention.

1 is a perspective view of a bookshelf dust collector according to a first embodiment of the present invention;

FIG. 2 is a side view of the bookshelf dust collector shown in FIG. 1; FIG.

3 is a plan view of the bookshelf dust collector shown in FIG.

Figure 4 is a longitudinal sectional view schematically showing the configuration of the bookshelf dust collector shown in FIG.

Figure 5 is a side view of a bookshelf dust collector according to a second embodiment of the present invention;

6 is a perspective view of a bookshelf dust collector according to a third embodiment of the present invention;

7 is a perspective view of a bookshelf dust collector according to a fourth embodiment of the present invention; And

8 is a block diagram showing another embodiment of the warning member applied to the present invention.

<Description of Major Symbols in Drawing>

50: cabinet

59: border bar

62: discharge nozzle

64: exhaust duct

72: suction nozzle

74: intake duct

76: filter

69: blade

Claims (12)

In the dust collector for bookshelf to remove the foreign matter accumulated in the bookshelf (1), A cabinet 50 moving in close contact with the bookshelf 1; A scattering unit configured to discharge high-pressure air supplied from the inside of the cabinet 50 to one side of the cabinet 50 in close contact with the bookshelf 1 to scatter foreign matter accumulated in the bookshelf 1; A dust collecting unit for collecting and collecting the foreign matter scattered by the scattering unit to the other side of the cabinet 50 by the suction force provided in the cabinet 50; And And a fan for respectively providing suction and high pressure air to the dust collecting unit and the scattering unit in the cabinet 50. A dust collector for a bookshelf further comprising a warning member that warns that the foreign matter is excessively collected in the dust collecting unit. According to claim 1, wherein the scattering unit, A discharge nozzle 62 provided at one side of the cabinet 50 to correspond to the bookshelf 1 and discharging high-pressure air supplied from the fan to the bookshelf 1; And One side is connected to the discharge nozzle 62, the other side is connected to the discharge port side of the fan to supply the high pressure air discharged from the fan to the discharge nozzle 62, the high pressure air through the discharge nozzle 62 A bookshelf dust collector including an exhaust duct 64 for exhausting. The method of claim 1, wherein the dust collecting unit, A suction nozzle 72 provided on the other side of the cabinet 50 so as to face the bookshelf 1 and suction foreign matter scattered by the scattering unit; One side is connected to the suction nozzle 72, the other side is connected to the inlet port side of the fan to provide a suction force generated in the fan to the suction nozzle 72, the foreign material sucked into the suction nozzle 72 to the cabinet ( An intake duct 74 for guiding the inside of the cover 50; And A dust collector for a bookshelf including a filter (76) interposed between the intake duct (74) and a fan to filter foreign matter introduced into the intake duct (74). The method of claim 3, wherein the suction nozzle 72, Dust collection device for a bookshelf further comprises a filter network (72a) for filtering the foreign matter of a predetermined size from the foreign matter is sucked by the scattering unit. The method of claim 1, Providing a protruding jaw along the edge of the close contact surface of the cabinet 50 in close contact with the bookshelf (1) to prevent foreign substances spilled by the discharge unit to prevent outflow of foreign matter to the outside of the close contact surface of the cabinet 50 A bookshelf dust collector further comprising a member. The method of claim 5, wherein the foreign material leakage preventing member, A dust collector for a bookshelf, characterized in that; the border bar (59) mounted along the edge of the close contact surface of the cabinet (50). The method of claim 6, It further includes a mounting member for mounting to the cabinet 50 in the rotatable state the border bar 56, The mounting member, The bookshelf dust collector, characterized in that the fixed shaft (59a) is fixedly installed on the close contact surface of the cabinet 50, the edge bar (59) is rotatably fitted. The method of claim 1, Further comprising a discharge air inducing member for inducing high-pressure air discharged from one side of the cabinet 50 by the scattering unit to the other side of the cabinet 50, The discharge air inducing member, Dust collector for bookshelf, characterized in that the blade 69 is provided on the discharge portion to the scattering unit while having a slope in the state toward the other side of the cabinet (50). delete The method of claim 1, wherein the warning member, The dust collector for a bookshelf, characterized in that the gauge (98a) by measuring the suction force of the dust collection unit to indicate that the suction force is attenuated by foreign matter. The method of claim 1, wherein the warning member, A suction force detector 92 for detecting suction force of the dust collecting unit; A comparison unit 96 for comparing the detected value detected by the suction force detector 92 with a set value; The dust collector for a bookshelf including an aller 98 which provides a warning light or a warning sound when the detected value compared by the comparing unit 96 is different from the set value. The method of claim 1, wherein the warning member, A suction force detector 92 for detecting suction force of the dust collecting unit; A discharge pressure detector (94) for detecting a discharge pressure of air discharged from the scattering unit; A comparison unit 96 for comparing a difference between the detected values detected by the discharge pressure detector 94 and the suction force detector 92 with a set value; And A dust collector for a bookshelf including an aller (98) for providing a warning light or a warning sound when the difference between the detected values compared by the comparing unit is different from the set value.

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