JP6384918B2 - Dust collector - Google Patents

Description

  The present invention relates to a dust collector that collects dust in a gas, and more particularly to a dust collector that is suitable for use in the food industry.

  Most of the conventional dust collectors are industrial ones installed at work sites where dust is generated, and are rarely used in the food industry. However, in the food factory, when dust such as wheat flour accumulates on the beam of the factory, there is a risk of microbial contamination by mold and bacteria, and in recent years, dust collectors have been used also in the food industry. Against this background, there is a situation in which demands for cleaning of manufacturing factories are increasing due to prolonged food storage periods. However, until now there have been few dust collectors for the food industry, and industrial dust collectors have generally been substituted.

  However, industrial dust collectors are not manufactured from the standpoint of washing the entire device, so it is particularly difficult to clean the interior, and the cleaning is incomplete and the dust collector itself has the risk of microbial contamination. There is. Therefore, it is not preferable from the viewpoint of hygiene and safety to use an industrial dust collector as it is in a food factory. For these reasons, recently, dust collectors for the food industry have been developed and put into practical use. Patent Document 1 describes a dust collector that is used at the manufacturing site of foods and pharmaceuticals and is intended to simplify internal cleaning work.

  By the way, if the filter of the dust collector is clogged with dust, the dust collecting performance is lowered, and means for removing the dust attached to the filter is required. For example, the dust collector of Patent Document 1 is provided with a facility for scraping off particles adhering to the outer surface of the bag filter. The blade facility includes a blade shaft provided below the filter along the parallel direction of the bag filters, and a blade unit provided on the blade shaft. The kite unit includes a base member mounted on the kite shaft, a large number of kite kites erected on the base member, and an outer kite member projecting forward from the kite kite. When the blade shaft is reciprocated in the left-right direction, each blade 往復 reciprocates in the left-right direction in conjunction with the blade shaft and strikes each bug filter to wipe off the powder particles adhering to the outer surface of the filter.

  Various techniques for removing dust adhering to the filter have been proposed in Patent Documents 2 to 7. In Patent Document 2, dust is removed by striking a filter with a hose that squeezes compressed gas and makes a random motion. In Patent Document 3, a ring member is attached to a cylindrical filter, and dust is removed by utilizing expansion and contraction of the filter. In Patent Document 4, a rotating shaft having a projecting piece is provided inside the filter, and dust is removed by hitting the bellows portion inside the filter with the projecting piece by the rotation of the rotating shaft. In patent document 5, dust is removed by giving a vibration of a longitudinal direction to a filter with an impact head. In Patent Document 6, a rotary shaft provided with an arm made of a spring is provided inside a filter, and dust is removed by the vibration of the arm while rubbing the inner surface of the filter by the rotation of the rotary shaft. In Patent Document 7, dust is removed by hitting an operation grip and swinging a cylindrical filter.

JP 2014-508221 A JP-A-11-309322 JP 2010-227863 A JP 2010-89027 A JP-T58-500109 Japanese Utility Model Publication No. 7-39913 Utility Model Registration No. 3153489

  In the dust collector of Patent Document 1, since dust flows from the outside to the inside of the bag filter, a large amount of dust adheres to the outer surface of the bag filter. For this reason, when the bag filter is hit with a hammer to remove clogs, or when the bag filter itself is removed for replacement, dust is scattered and accumulates on the inside of the housing or floor to remove it. Cleaning work is required. In addition, since the dust-off part (blade equipment) is provided in the space where the gas containing dust is introduced and is exposed to dust, it is necessary to remove the dust-off part from the dust collector main body and clean it.

  An object of the present invention is to provide a dust collector that can easily perform cleaning by suppressing dust scattering and accumulation, and that does not require cleaning by removing a dust-off portion.

A dust collector according to the present invention includes a main body including a filter and a housing that stores the filter, a gas introduction portion provided below the main body portion, a dust box provided below the gas introduction portion, and a filter And a wiping-off portion for wiping off dust adhering to the surface. The filter is a cylindrical molded filter obtained by molding a filter medium. The filter is closed at the top and has an opening at the bottom, and the gas introduced from the gas inlet through the opening is It is configured to flow from the inside toward the outside. The gas introduction part and the space outside the filter in the casing are partitioned by a partition plate provided in the lower part of the casing. A hole corresponding to the opening of the filter is formed in the partition plate, and the filter is placed on the partition plate in a state where a part of the filter is locked to a part of the partition plate in the vicinity of the hole. Installed. In addition, a sealing member is provided between the filter and the partition plate to seal the periphery of the hole. This sealing member is compressed by the weight of the filter and seals the periphery of the hole of the partition plate. The payout part is disposed in the outer space and includes a striking mechanism that strikes the filter . This striking mechanism strikes the upper part of the filter , so that dust adhering to the inside of the filter is wiped off and dropped into the dust box, and a force acting in the direction of compressing the sealing member is applied to the filter .

  According to such a configuration, the gas containing dust is introduced from the lower part of the filter and flows from the inside to the outside of the filter, so that the dust is collected inside the filter. For this reason, if a filter is hit | damaged by a wiping off part, the dust adhering to the inner side of a filter will fall and will be collect | recovered by the dust box through the opening part of a filter lower part. As a result, when the filter is hit for clogging removal or when the filter itself is removed for replacement, dust is prevented from scattering and accumulating on the inside of the housing or the floor. Further, even if dust is scattered and accumulated, the amount of the dust is small, so that the cleaning work for dust removal becomes easy. Furthermore, the scraping part is arranged in a space outside the filter in the housing, and since this space is a clean space through which clean gas passes through the filter, the scraping part may be exposed to dust. Absent. For this reason, the operation | work which removes a removal part from a dust collector and wash | cleans becomes unnecessary.

Moreover, according to this invention, it can prevent reliably that the dust of a gas introduction part leaks into the clean space of a main-body part through between a filter and a partition plate.

  According to a preferred embodiment of the present invention, the sealing member is an annular elastic member having a groove along the outer periphery. According to this, a strong tightening force as in the case of using sponge rubber as a sealing member becomes unnecessary, and since there is little influence of aging deterioration like sponge rubber, it is possible to easily maintain stable sealing performance. .

In the present invention, the sealing member is compressed by the weight of the filter and seals the periphery of the hole, so that a desired sealing performance can be obtained only by placing the filter equipped with the sealing member on the partition plate. Can do.

In the present invention, the filter in the vicinity of the hole of the partition plate, with a portion of the filter is engaged with the portion of the partition plate, since it is mounted on the partition plate, and easily position the filter The filter can be installed on the partition plate, and the filter can be detachably attached to the partition plate. Furthermore, the vertical movement of the filter can be restricted.

  In the present invention, the filter typically comprises a molded filter obtained by molding a filter medium. The filter medium is preferably a non-woven fabric that has a large amount of filtration and can be easily molded. The filter may be a pleated cylindrical filter having a large number of ridges.

  According to a preferred embodiment of the present invention, the gas introduction part is detachable from the main body part, and the dust box is detachable from the gas introduction part. According to this, only the dust box can be easily taken out while the gas introduction part is fixed to the main body part. Further, the dust box and the gas introduction part can be taken out as a single body.

  According to a preferred embodiment of the present invention, the gas introduction unit includes a duct into which gas is sucked and an intake box that is open and closed having an introduction port communicating with the duct. A baffle plate is provided for adjusting the flow of the gas introduced through the. According to this, since the dust falling from the main body part passes through the intake box opened up and down and reaches the dust box, even if the intake box is provided, it does not become an obstacle to collecting the dust. And by distributing the airflow containing dust to the plurality of filters equally by the baffle plate of the intake box, it is possible to prevent the airflow from being concentrated on a specific filter and the filter from being worn by dust.

  According to a preferred embodiment of the present invention, the scraping portion is disposed in the vicinity of the upper portion of the filter and includes a striking mechanism that moves up and down. This striking mechanism strikes the top of the filter when moving downward. According to this, impact is applied to the entire filter by hitting the closed filter upper part, and the dust adhering to the inner surface of the filter falls through the opening part under the filter.

  In the present invention, the scraping portion may further include a rotating shaft. In this case, the striking mechanism moves up and down in conjunction with the rotation of the rotating shaft. According to this, the striking mechanism can be moved up and down by rotating the rotating shaft manually or electrically.

  According to a preferred embodiment of the present invention, when the rotation shaft and the striking mechanism are engaged, the rotation shaft rotates, so that the striking mechanism moves upward, and the engagement between the rotation shaft and the striking mechanism is released. When hitting, the striking mechanism moves down. According to this, the striking mechanism can be moved up and down with a simple configuration without providing a complicated mechanism for converting the rotational motion of the rotating shaft into the vertical motion of the striking mechanism.

  According to a preferred embodiment of the present invention, the impact mechanism strikes the upper portion of the filter a plurality of times by one rotation of the rotating shaft. According to this, since the number of times that the striking mechanism strikes the filter increases, it is possible to efficiently remove dust.

  According to a preferred embodiment of the present invention, a handle for rotating the rotating shaft is provided, and this handle is exposed to the outside of the housing. According to this, when the handle is turned, the rotating shaft rotates and the striking mechanism moves up and down, so that dust can be manually removed.

  According to a preferred embodiment of the present invention, a stopper for locking the handle in place is further provided, and when the handle is in place, the striking mechanism is held at a position spaced from the upper part of the filter. According to this, when the filter is replaced, if the handle is locked at a predetermined position by the stopper, the striking mechanism is kept away from the filter, so that the filter can be easily replaced without being disturbed by the striking mechanism. be able to.

  According to a preferred embodiment of the present invention, the striking mechanism includes a striking member having a weight. According to this, at the time of operation of the dust collector that does not operate the striking mechanism, by placing the striking member on the top of the filter, the weight presses the filter from above, so even if the weight of the filter is not sufficient, The filter is prevented from being lifted or rotated by air pressure. Moreover, since the gravity of the weight acts in the direction in which the sealing member is compressed, the sealing performance of the sealing member is improved.

  ADVANTAGE OF THE INVENTION According to this invention, while suppressing scattering and accumulation of dust, it can clean easily, and can provide the dust collector which does not need to remove a washing-off part and wash | clean.

It is an external view of the dust collector which concerns on this invention. It is the perspective view which showed the internal structure of the dust collector. It is the front view which showed the internal structure of the dust collector. It is the figure which looked at the housing | casing of the main-body part of the dust collector from diagonally downward. It is sectional drawing which showed the filter attachment part. It is sectional drawing which showed the other example of the filter attachment part. It is sectional drawing etc. which showed the other example of the filter attaching part. It is sectional drawing etc. which showed the other example of the filter attaching part. It is the perspective view which showed the detail of the payout part. It is the figure which showed the component of the payout part. It is the figure which showed the other example of the rotating shaft. It is the figure which showed the component of the contact part. It is the figure which showed the other example of the dust box and the intake box. It is an external view of the dust collector which concerns on other embodiment. It is the perspective view which showed the internal structure of the dust collector. It is the front view which showed the internal structure of the dust collector. It is sectional drawing which showed the other example of the sealing member. It is sectional drawing which showed the other example of the sealing member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each drawing, the same reference numerals are given to the same or corresponding parts.

  1 to 3 show a dust collector 100 according to an embodiment of the present invention. This dust collector 100 is mainly used in a food factory, and as shown in FIG. 1, includes an exhaust part 101, a main body part 102, and a powder contact part 103 in order from the top. The schematic configuration of each part will be described below.

  The exhaust unit 101 is a part that exhausts clean gas from which dust has been removed by a filter 15 (described later) of the main body unit 102, and includes a housing 1. The upper part of the housing 1 is covered with a top plate 2, and the top plate 2 is provided with exhaust holes 3 for discharging clean gas. A door 4 that can be freely opened and closed is provided on the front surface of the housing 1. The door 4 is attached to the housing 1 with a hinge (not shown) at the left end in FIG. 1 and attached to the housing 1 with a catch clip 5 at the right end. As shown in FIGS. 2 and 3, the housing 1 accommodates a motor 6 and a blower 7 having a fan that is rotated by the motor 6. An opening 8 that communicates with the internal space of the housing 10 of the main body 102 is formed on the bottom surface of the housing 1.

  The main body 102 is a portion that generates dust by removing dust contained in the gas with the filter 15, and includes the housing 10. A door 11 that can be opened and closed is provided on the front surface of the housing 10. The door 11 is attached to the housing 10 with a hinge (not shown) at the left end in FIG. 1 and attached to the housing 10 with a catch clip 12 at the right end. A reinforcing rib 13 that protrudes inward is formed integrally with the door 11 by beading. On the side surface 10c of the casing 10, reinforcing ribs 14 protruding inward are formed integrally with the casing 10 by beading. A support frame 17 that supports the main body 102 is provided on the lower side of the housing 10. The support frame 17 includes casters 18.

  As shown in FIG. 4A, a large window W is formed on the upper surface 10a of the housing 10, and most of the upper surface 10a is open. The partition plate 10 b provided at the lower part of the housing 10 forms the bottom surface of the housing 10. A total of four circular holes 10 d are formed in the partition plate 10 b at positions corresponding to the filters 15. As shown in an enlarged view in FIG. 4B, two notches 10e and two locking pieces 10f are formed on the edge of the hole 10d. The locking piece 10f is not necessarily provided at the edge of the hole 10d, and may be provided at a position away from the hole 10d as long as it is in the vicinity of the hole 10d. Further, the locking piece 10f may be formed integrally with the partition plate 10b, or may be a separate member fixed to the partition plate 10b. On the rear surface of the partition plate 10b, a protruding wall 10h having an L-shaped cross section is provided so as to surround three sides of the region where the hole 10d is formed. The protruding wall 10h is fixed to the partition plate 10b by welding, for example.

  As shown in FIGS. 2 and 3, a plurality of (four in this case) filters 15 and a scraping portion 16 for scraping dust adhering to the inner surface of the filter 15 are accommodated in the housing 10. Yes. The filters 15 are arranged in two rows on the upper surface of the partition plate 10b, and the lower openings 15b of the filter 15 correspond to the holes 10d of the partition plate 10b. The scraping portion 16 is provided in the space S <b> 2 outside the filter 15 inside the housing 10, and is located above the filter 15. The scraping portion 16 has a rotating shaft 25, a striking mechanism 26, and a guide portion 27. A handle H for rotating the rotary shaft 25 is provided outside the housing 10. Details of the filter 15 and the pay-off unit 16 will be described later.

  The powder contact portion 103 includes an intake box 20 provided below the main body portion 102, a duct 21 provided on a side surface of the intake box 20, and a dust box 22 provided below the intake box 20. The intake box 20 and the duct 21 constitute a gas introduction part 23 that introduces the gas sucked from the duct 21 into the internal space S1 of the filter 15. The intake box 20 is formed of a frame-like body whose upper and lower sides are opened, and a flow of gas sucked from the duct 21 is adjusted by a baffle plate 20b described later. The dust box 22 includes a tray having an open top, and collects dust that falls from the internal space S1 of the filter 15. The intake box 20 is detachably attached to the housing 10 of the main body 102, the dust box 22 is detachably attached to the intake box 20, and the duct 21 is detachably attached to the intake box 20. ing. Details of the intake box 20, the duct 21, and the dust box 22 will be described later.

  In the dust collector 100 described above, the gas sucked from the duct 21 passes from the intake box 20 to the internal space S1 of the filter 15 through the hole 10d of the partition plate 10b of the housing 10 and the opening 15b below the filter 15. be introduced. The gas flows from the inner side to the outer side of the filter 15 and passes through the filter 15, whereby dust contained in the gas is collected on the inner surface of the filter 15. The gas that has passed through the filter 15 becomes a clean gas from which dust has been removed. After exiting the space S2 outside the filter 15, the gas passes through the window W of the housing 10 and the opening 8 of the housing 1, and then the exhaust portion 101. To be introduced. The clean gas introduced into the exhaust unit 101 is guided to the exhaust hole 3 by the rotation of the fan of the blower 7 and is discharged from the exhaust hole 3 to the outside.

  When the filter 15 is clogged with dust, the rotary shaft 25 is rotated by turning the handle H in order to remove the dust. Then, the striking mechanism 26 moves up and down in conjunction with the rotary shaft 25, and the striking member 26c provided in the striking mechanism 26 repeatedly strikes the upper portion 15a of the filter 15 to wipe off dust adhering to the inner surface of the filter 15 ( Details will be described later). The dust that has been removed falls from the internal space S1 of the filter 15 to the dust box 22 through the opening 15b of the filter 15, the hole 10d of the partition plate 10b, and the intake box 20.

  Next, details of the filter 15 will be described. As shown in FIG. 2, the filter 15 used in this embodiment is a pleated cylindrical filter having a large number of ridges 15c formed by folding a filter medium. The reason for using such a filter 15 is to increase the filtration area by the ridge 15c. The filter 15 is a molded filter obtained by molding a filter medium, and a non-woven fabric such as felt is used as the filter medium. Since the non-woven fabric has a porosity that is twice or more that of the woven fabric, a large amount of filtration can be secured, and there is an advantage that it can be easily formed into a pleated shape.

  The upper portion 15a of the filter 15 is closed, and the opening 15b described above is formed in the lower portion of the filter 15. Further, a flange 15 d is provided at the lower part of the filter 15.

  FIG. 5 shows the detailed structure of the filter mounting portion. On the back side of the flange 15d, a hollow boss portion 15e that fits into the hole 10d of the partition plate 10b is formed integrally with the flange 15d. A pin 35 protruding outward is embedded in the boss portion 15e. A plurality of the pins 35 are provided along the circumferential direction of the boss portion 15e. A sealing member 30 is interposed between the filter 15 and the partition plate 10b. The sealing member 30 is made of an annular elastic member (for example, rubber) having a V-shaped groove 30a along the outer periphery, and is attached to the boss portion 15e in advance.

  In order to attach the filter 15 to the partition plate 10b, the filter 15 is placed on the partition plate 10b so that the pin 35 passes through the notch 10e (FIG. 4B) of the partition plate 10b. Then, when the filter 15 is rotated in the circumferential direction in this state, the pin 35 is locked to the locking piece 10f (FIG. 4B) which is a part of the partition plate 10b. Thereby, the filter 15 is installed on the partition plate 10b in a positioned state.

  In a state where the filter 15 is installed on the partition plate 10b, the sealing member 30 is compressed by the weight of the filter 15 and seals the periphery of the hole 10d of the partition plate 10b. For this reason, the dust in the gas introduced into the intake box 20 from the duct 21 passes between the filter 15 and the partition plate 10b and does not leak into the space S2 in the housing 10, and is filtered by the filter 15. It is possible to prevent the clean gas from being recontaminated. Moreover, desired sealing performance can be obtained only by mounting the filter 15 equipped with the sealing member 30 on the partition plate 10b.

  In addition, although it is possible to use sponge rubber instead of the sealing member 30 described above, the sponge rubber requires a strong tightening force, and if the tightening force is insufficient, sufficient sealing performance cannot be obtained. Moreover, since sponge rubber deteriorates over time, it is difficult to maintain stable sealing performance over a long period of time. On the other hand, when the sealing member 30 of this embodiment is used, sufficient sealing performance can be obtained without requiring a strong tightening force, and since there is little influence of aging deterioration, stable sealing performance is achieved. Can be maintained.

  When removing the filter 15 from the partition plate 10b, the filter 15 is rotated in the direction opposite to that at the time of attachment. Then, since the pin 35 is disengaged from the locking piece 10f, if the filter 15 is lifted upward at a position where the pin 35 and the notch 10e of the partition plate 10b coincide with each other, the pin 35 passes through the notch 10e. Thus, the filter 15 can be removed.

  As described above, in this embodiment, the filter 15 can be easily attached and detached without using a tool, so that the filter 15 can be easily installed or replaced. Further, by rotating the filter 15 at the time of mounting, the pin 35 is locked to the locking piece 10f, so that the filter 15 can be easily positioned and installed on the partition plate 10b, and the partition plate 10b The filter 15 can be detachably attached. Furthermore, the vertical movement of the filter 15 can be restricted by the locking of the pin 35 and the locking piece 10f.

  FIG. 6 shows another example of the filter mounting portion. In FIG. 6, the same parts as those in FIG. In FIG. 6, a mounting flange 36 is provided instead of the pin 35 of FIG. The mounting flange 36 includes a flange portion 36a, a boss portion 36b, an opening portion 36c, a first projecting piece 36d, and a second projecting piece 36e. A plurality of first projecting pieces 36d and second projecting pieces 36e are provided in the circumferential direction of the flange portion 36a.

  When attaching the filter 15, the sealing member 30 is fitted to the boss portion 36 b of the attachment flange 36, the attachment flange 36 is attached to the lower part of the filter 15 by an appropriate means, and then the first projecting piece 36 d is a partition plate. The filter 15 is placed on the upper surface of the partition plate 10b so as to pass through the notch portion 10e (FIG. 4B). At this time, the second projecting piece 36e comes into contact with the upper surface of the partition plate 10b, and the distance between the filter 15 and the partition plate 10b is kept constant. When the filter 15 is rotated in the circumferential direction in this state, the first projecting piece 36d is locked to the locking piece 10f (FIG. 4B) of the partition plate 10b. Thereby, the filter 15 is installed on the partition plate 10b in a positioned state. When removing the filter 15, follow the reverse procedure of the attachment. According to the embodiment of FIG. 6, the filter 15 can be attached to the partition plate 10 b by using the mounting flange 36 without modifying the ready-made (standard product) filter 15.

  FIG. 7 shows another example of the filter mounting portion. 7, the same parts as those in FIGS. 5 and 6 are denoted by the same reference numerals. In FIG. 7, the filter 15 has a hollow boss 15g surrounding the opening 15b, and a male screw (not shown) is formed on the outer periphery of the boss 15g. This male screw may be formed in the entire outer periphery of the boss portion 15g, or may be formed only in a region excluding a portion where the sealing member 30 is fitted. Further, a hollow boss portion 10g protruding downward is formed at the periphery of the hole 10d of the partition plate 10b, and a male screw of the boss portion 15g of the filter 15 is screwed into the inner periphery of the boss portion 10g. An internal thread is formed.

  In attaching the filter 15, after the sealing member 30 is fitted to the boss portion 15g, the boss portion 15g is inserted into the boss portion 10g through the hole 10d of the partition plate 10b, the filter 15 is rotated, and each boss portion is rotated. Screw the two screws together. Thereby, the filter 15 is installed on the partition plate 10b in a positioned state. When removing the filter 15, follow the reverse procedure of the attachment. According to the embodiment of FIG. 7, the filter 15 can be attached to and detached from the partition plate 10 b simply by rotating the filter 15 without using a dedicated mounting bracket or the like.

  FIG. 8 shows another example of the filter mounting portion. In FIG. 8, the same parts as those in FIGS. In FIG. 8, the filter 15 has a hollow boss portion 15 h that surrounds the opening 15 b, and a ring member 37 that is externally fitted to the filter 15 is provided. The ring member 37 is made of metal and is placed on the flange 15 d of the filter 15 to press the filter 15 against the partition plate 10 b and to act as a weight against the sealing member 30.

  In attaching the filter 15, the sealing member 30 is fitted to the boss portion 15h, and then the boss portion 15h is inserted into the hole 10d of the partition plate 10b to temporarily install the filter 15 on the partition plate 10b. Thereafter, the ring member 37 is externally fitted to the filter 15 from above and placed on the flange 15d. Thereby, the filter 15 is placed on the partition plate 10b in a state where the gravity of the ring member 37 is added to its own weight and the filter 15 is positioned. When removing the filter 15, follow the reverse procedure of the attachment. According to the embodiment of FIG. 8, the installation work of the filter 15 becomes very simple, and the sealing member 30 is compressed by receiving the gravity of the ring member 37 in addition to the weight of the filter 15. The peripheral sealing performance can be further enhanced.

  Next, details of the payout unit 16 will be described. As shown in FIG. 9, the scraping portion 16 is provided in a space above the filter 15, and includes a rotating shaft 25 that is rotated by the handle H, and an impact mechanism 26 that moves up and down in conjunction with the rotation of the rotating shaft 25. And a guide portion 27 that guides the vertical movement of the striking mechanism 26. Two rotation shafts 25 are provided corresponding to each row of the filters 15. Four striking mechanisms 26 are provided corresponding to the respective filters 15. In FIG. 9, the striking mechanisms 26 in the front row move up and are separated from the upper portion 15 a of the filter 15, and the striking mechanisms 26 in the far row move down and move to the upper portion of the filter 15. The state which hit | damaged 15a is shown.

  FIG. 10 shows components of the payout portion 16. As shown in FIGS. 10A and 10B, two drive members 25 a for vertically moving the striking mechanism 26 are attached to the rotating shaft 25 corresponding to the striking mechanisms 26. Each drive member 25a is formed with a U-shaped notch 25b. As shown in FIG. 3, both end portions of the rotation shaft 25 are rotatably supported by the housing 10. A right end portion of the rotation shaft 25 protrudes from the housing 10 and is coupled to the handle H. Further, as shown in FIG. 1, a rotatable stopper 19 for locking the handle H at a predetermined position is provided on the side surface 10 c of the housing 10.

  As shown in FIG. 10C, the striking mechanism 26 includes an engaging portion 26a that engages with the notch 25b of the drive member 25a of the rotating shaft 25, a striking member 26c that strikes the upper portion 15a of the filter 15, It has the pin 26b which connects the engaging part 26a and the striking member 26c. The striking member 26c includes a metal weight 26d and a resin or rubber striking plate 26e attached to the lower surface of the weight 26d.

  As shown in FIG. 10 (d), the guide portion 27 includes a substrate 27a provided for each row of the filters 15, and a guide bracket 27b attached to the upper surface of the substrate 27a. A guide hole 27c through which the pin 26b of the striking mechanism 26 is inserted is formed in the guide bracket 27b. Also, a guide hole 27d through which the pin 26b is inserted is formed in the substrate 27a at a position facing the guide hole 27c. As shown in FIG. 3, both end portions in the longitudinal direction of the substrate 27 a are fixed to the housing 10.

  Next, the operation of the payout unit 16 will be described. In FIG. 9, when the handle H is gripped by hand and turned rightward, the rotary shaft 25 rotates rightward. Along with this rotation, the drive member 25a provided on the rotary shaft 25 also rotates to the right, and the notch 25b of the drive member 25a engages with the engagement portion 26a of the striking mechanism 26. Here, since the width of the engaging portion 26a is larger than the width of the notch portion 25b, the engaging portion 26a is scooped up by the drive member 25a as shown in the front row of FIG. Move up. As a result, the striking member 26c connected to the engaging portion 26a also moves upward, and the striking member 26c is separated from the upper portion 15a of the filter 15. When the striking member 26c moves up, the pin 26b is guided by the guide hole 27c of the guide bracket 27b and the guide hole 27d of the substrate 27a, so that the striking member 26c moves up smoothly.

  When the handle H is further rotated to the right, the drive member 25a is eventually separated from the engagement portion 26a and the engagement between the two is released. Then, since there is no support for the striking mechanism 26, the striking mechanism 26 moves down (falls) by its own weight. For this reason, the striking plate 26e (FIG. 10C) of the striking member 26c strikes the upper surface of the upper portion 15a of the filter 15. The back row in FIG. 9 shows this state. Even when the striking member 26c is moved downward, the pin 26b is guided by the guide holes 27c and 27d, so that the striking member 26c moves smoothly.

  When the upper portion 15a of the filter 15 is struck by the striking plate 26e, an impact is applied to the entire filter 15. Due to this impact, the dust adhering to the inside of the filter 15 falls and passes through the opening 15b at the lower portion of the filter. And collected in the dust box 22. In this case, the falling dust passes through the intake box 20 that is open at the top and bottom and reaches the dust box 22, so even if the intake box 20 is provided, it does not hinder dust collection.

  In this way, each time the handle H is turned once, the striking mechanism 26 moves up and down, and the upper portion 15a of the filter 15 is struck once. Therefore, the handle H is turned many times so that the upper portion 15a of the filter 15 is moved. By repeatedly hitting, the dust adhering to the filter 15 can be removed. As described above, since the striking plate 26e is made of resin or rubber, the filter 15 is not damaged at the time of striking.

  When the striking mechanism 26 strikes the filter 15, the force applied to the filter 15 acts in the direction of compressing the sealing member 30 in FIG. 5 and the like. For this reason, the sealing performance at the periphery of the hole 10d of the partition plate 10b is not impaired by the impact, but rather the sealing performance is improved.

  When replacing the filter 15, if the stopper 19 (FIG. 1) is rotated forward to bring the handle H into contact with the stopper 19, the handle H is locked at that position and the striking mechanism 26 is moved to the filter 15. It is held at a position spaced from the upper portion 15a. For this reason, the filter 15 can be easily replaced without being disturbed by the striking mechanism 26.

  Further, when the dust collector 100 that does not operate the striking mechanism 26 is operated, the handle H may be unlocked, the striking mechanism 26 may be moved down, and the striking member 26 c may be placed on the upper portion 15 a of the filter 15. In this case, since the weight 26d provided in the striking member 26c presses the filter 15 from above, the filter 15 can be prevented from being lifted or rotated by the air pressure even if the weight of the filter 15 is not sufficient. In addition, since the gravity of the weight 26d acts in the direction in which the sealing member 30 is compressed, the sealing performance of the sealing member 30 can be improved.

  FIG. 11 shows another example of the rotating shaft 25. Since the striking mechanism 26 and the guide portion 27 are the same as those shown in FIGS. 10C and 10D, the illustration is omitted. In the rotating shaft 25 of FIG. 11, two driving members 25 a corresponding to one striking mechanism are provided in the rotating direction of the rotating shaft 25. When this rotating shaft 25 is used, each time the handle H is rotated once (that is, by one rotation of the rotating shaft 25), the striking member 26c strikes the upper portion 15a of the filter 15 twice. Therefore, compared with the case where the rotating shaft 25 of FIG. 10 is used, the number of hits of the hitting member 26c increases, so that dust adhering to the filter 15 can be efficiently removed.

  Next, details of the intake box 20, the duct 21, and the dust box 22 constituting the powder contact portion 103 will be described. As shown in FIG. 12 (a), the intake box 20 is made of a frame-like body that is open at the top and bottom, has a gripping tool 20a on the front surface, and a baffle plate 20b inside. Further, on the side surface of the intake box 20, an introduction port 20 c communicating with the duct 21 (FIG. 12C), an attachment rod 20 d for attaching the duct 21, and a catch clip of the dust box 22 (FIG. 12B). A locking piece 20e locked by 22c and a catch clip 20f for detachably attaching the intake box 20 itself to the housing 10 of the main body 102 are provided. The locking piece 20e and the catch clip 20f are also provided on the opposite side surface (not shown).

  The baffle plate 20b is provided in the vicinity of the inlet 20c and straddling the opposing side walls of the intake box 20. The baffle plate 20b interferes with the gas introduced from the duct 21 through the introduction port 20c, and the airflow including dust is equally distributed to the plurality of filters 15 through the holes 10d of the partition plate 10b. Thus, the flow of gas is adjusted. Thereby, it can prevent that an airflow concentrates on the specific filter 15, and the said filter 15 wears with dust. Here, the baffle plate 20b is bent into a pentagonal shape, but the baffle plate 20b may be shaped like an arch shape or an inverted V shape. In any case, the baffle plate 20b is preferably shaped so that dust does not accumulate on the upper surface.

  As shown in FIG. 12 (b), the dust box 22 is composed of a tray with an open top, and has a gripping tool 22a on the front surface. The bottom surface 22 b of the dust box 22 receives dust falling from the filter 15. On the side surface of the dust box 22, a catch clip 22c that is locked to the locking piece 20e of the intake box 20 and a caster 22d are provided. The catch clip 22c and the caster 22d are also provided on the opposite side surface (not shown).

  As shown in FIG. 12C, the duct 21 includes a duct main body 21a formed of a tubular body, and a flange 21b provided integrally with the duct main body 21a. The flange 21b is provided at the end of the main body 21a, and has hook-shaped attachment holes 21c at four corners. That is, the flange 21 b constitutes an attachment member for attaching the duct body 21 a to the intake box 20. As shown in FIG. 12D, a sealing member 40 is fitted to the end of the duct body 21a protruding into the flange 21b. The sealing member 40 is the same as the sealing member 30 shown in FIG. 5 and the like, and is formed of an annular elastic member having a V-shaped groove 40a along the outer periphery.

  When the mounting hole 21c of the flange 21b is inserted into the mounting rod 20d (FIG. 12 (a)) of the intake box 20 and the duct 21 is rotated a little, the flange 21b is locked by the mounting rod 20d, and the duct 21 is sucked. It is fixed to the box 20. In this state, the internal space of the intake box 20 communicates with the duct 21 via the introduction port 20c. Moreover, the sealing member 40 is compressed between the intake box 20 and the flange 21b, and seals the periphery of the inlet 20c. Also in this case, compared with the case where sponge rubber is used, a strong tightening force is not required, and stable sealing performance can be maintained. When the duct 21 is removed, the flange 21b is unlocked by slightly rotating the duct 21 in the direction opposite to that at the time of attachment, and the flange 21b can be pulled out from the attachment rod 20d. In this way, the flange 21b is detachably attached to the intake box 20. Thereby, the duct main body 21a is detachably attached to the intake box 20 via the flange 21b.

  By the way, the catch clip 20f of the intake box 20 is locked to a J-shaped locking piece 10i provided on the housing 10, as shown in FIG. Thereby, the intake box 20 is detachably attached to the housing 10. The dust box 22 is detachably attached to the intake box 20 by engaging the catch clip 22c of the dust box 22 with the engaging piece 20e of the intake box 20. Further, as described above, the duct 21 is also detachably attached to the intake box 20.

  Therefore, when the entire powder contact portion 103 is removed from the main body portion 102, the engagement between the catch clip 20 f of the intake box 20 and the locking piece 10 i of the housing 10 with the dust box 22 attached to the intake box 20. Release the stop. Thereby, the intake box 20 and the dust box 22 can be integrated and separated from the main body 102. Next, the duct 21 is removed from the intake box 20. Thereafter, the gripping tool 20 a of the intake box 20 or the gripping tool 22 a of the dust box 22 is gripped, and the unit in which the suction box 20 and the dust box 22 are integrated is pulled out from the main body 102. At this time, since the dust box 22 includes the casters 22d, the unit can be easily pulled out.

  Further, when it is desired to remove only the dust box 22 of the powder contact portion 103 from the main body portion 102, the catch clip is kept with the intake box 20 attached to the main body portion 102 (the catch clip 20f and the locking piece 10i are locked). The locking between the 22c and the locking piece 20e is released. Thereby, the dust box 22 is separated from the intake box 20 and can be pulled out by the gripping tool 22a. This is useful when the dust accumulated in the dust box 22 is discarded.

  Further, when it is desired to remove the duct 21 from the intake box 20, as described above, when the duct 21 is rotated in the direction opposite to that at the time of attachment, the flange 21 b can be pulled out from the attachment rod 20 d, and the duct 21 is removed from the intake box 20. Can be removed. This is useful when cleaning the duct 21.

  In the present embodiment, in a state where the intake box 20 is attached to the housing 10, the flange 21b of the duct 21 is a part of the housing 10, specifically, the protruding wall 10h (see FIG. 4 (a)), the duct 21 cannot be rotated to a removable position. Further, as shown in FIG. 3, the entire contact portion 103 is attached to the housing 10 by a catch clip 20 f and a locking piece 10 i in a state where it floats by a predetermined distance y from the floor surface F. Therefore, the catch clip 20f and the locking piece 10i are unlocked, the intake box 20 is separated from the main body portion 102, and the entire powder contact portion 103 is lowered to the floor surface F. 10 h no longer interferes and the duct 21 can be rotated, and the duct 21 can be removed from the intake box 20.

  According to this configuration, it is possible to prevent the duct 21 from being inadvertently rotated in a state where the powder contact portion 103 is attached to the housing 10, thereby preventing the sealing performance at the periphery of the inlet 20 c from being impaired, and the intake box 20. The height of the dust collector 100 can be reduced and the overall height of the dust collector 100 can be reduced. However, the present invention is not limited to this configuration, and only the duct 21 may be detached from the intake box 20 in a state where the powder contact portion 103 is attached to the housing 10.

  According to the above-described embodiment, the gas containing dust is introduced from the lower part of the filter 15 and flows from the inside of the filter 15 toward the outside, so that the dust is collected inside the filter 15. For this reason, if the filter 15 is struck by the dropping portion 16, the dust adhering to the inside of the filter 15 falls and is collected in the dust box 22 through the opening 15b at the lower portion of the filter. As a result, when the filter 15 is hit for clogging removal or when the filter 15 itself is removed for replacement, dust is prevented from being scattered and deposited on the inside of the housing 10 or the floor. Further, even if dust is scattered and accumulated, the amount of the dust is small, so that the cleaning work for dust removal becomes easy.

  Further, the scraping portion 16 is disposed in a space S2 outside the filter 15 in the housing 10, and this space S2 is a clean space through which clean gas that has passed through the filter 15 flows. Is not exposed to dust. For this reason, the operation | work which removes the removal part 16 from the dust collector 100, and wash | cleans becomes unnecessary. Further, since the scraping portion 16 is configured as shown in FIG. 9, it is possible to hit with a simple configuration without providing a complicated mechanism for converting the rotary motion of the rotary shaft 25 into the vertical movement of the hitting mechanism 26. The mechanism 26 can be moved up and down.

  By the way, as a method for removing dust adhering to the filter, a method using pulse jet air is well known. However, since this method uses compressed air, a supply source of compressed air is required. However, in a food factory, a compressed air supply source is often not provided, and the pulse jet air system cannot be adopted in such a field. However, since the dust collector 100 does not require compressed air, the dust collector 100 described above can be widely introduced even in food factories that do not have a compressed air supply source.

  Furthermore, in the dust collector for food factories, there is a high demand for hygiene management that the entire device can be washed, but if the industrial dust collector is diverted as in the past, the device can be easily disassembled. In addition, it is virtually impossible to wash. In addition, since there are many uneven portions and welded portions inside the apparatus, it is very difficult to clean the interior from corner to corner.

  However, in the dust collector 100 described above, if the filter 15 is taken out from the housing 10, only the wiping portion 16 is substantially left in the housing 10, and the wiping portion 16 is positioned above. Therefore, a wide empty space can be secured in the housing 10. For this reason, the inside of the housing | casing 10 can be wash | cleaned thoroughly or can be cleaned carefully to every corner, and it can prevent that the inside of a housing | casing is contaminated with mold | fungi and bacteria.

  Moreover, since the partition plate 10b of the housing 10 is a flat plate and there is no conspicuous uneven portion inside the housing 10, it is easier to clean the inside. The reinforcing ribs 13 and 14 protrude inward, but are formed integrally with the housing 10 by beading, so that the ribs 13 and 14 as in the case of welding the ribs of different members are used. There is no gap between the housing 10 and the housing 10. Therefore, dust does not remain in the slit, and the cleaning becomes easier.

  Further, since the intake box 20, the duct 21, and the dust box 22 constituting the powder contact portion 103 can be easily removed from the dust collector main body, they can be easily cleaned, and each part can be washed as a whole. For this reason, as a whole dust collector, cleaning and washing can be facilitated and improved in efficiency.

  FIG. 13 shows another example of the dust box and the intake box in the contact portion 103. The duct is not shown because it is substantially the same as the duct 21 of FIG.

  A dust box 41 shown in FIG. 13A is formed of a shallow tray with an open top, and has a gripping tool 41a on the front surface. The bottom surface 41 b of the dust box 41 receives dust falling from the filter 15. Unlike the dust box 22 in FIG. 12B, the dust box 41 is not provided with casters or catch clips.

  An intake box 42 shown in FIG. 13 (b) is formed of a deep tray with an open top, and has a gripping tool 42a and an opening 42d on the front surface, and a baffle plate 42b inside. Further, on the side surface of the intake box 42, an inlet 42c communicating with a duct (not shown), a caster 42e, and a catch clip 42f for detachably attaching the intake box 42 itself to the housing 10 of the main body 102 are provided. Is provided. The casters 42e and the catch clips 42f are also provided on the opposite side surfaces (not shown). Further, a mounting rod similar to the mounting rod 20d in FIG. 12A is provided in the vicinity of the introduction port 42c, but the illustration is omitted. A duct similar to that shown in FIG. 12C is detachably attached to the intake box 42.

  The dust box 41 is accommodated in the intake box 42 from the opening 42 d of the intake box 42 and is taken out from the opening 42 d of the intake box 42. That is, the dust box 41 is detachable from the intake box 42. As a means for fixing the dust box 41 in the intake box 42, for example, a magnet is used. FIG. 13C shows a state in which the dust box 41 is stored in the intake box 42.

  Also in the embodiment of FIG. 13, the intake box 42 is detachably attached to the housing 10, the dust box 41 is detachably attached to the intake box 42, and the duct is also detachably attached to the intake box 42. Therefore, only the dust box 41 can be taken out while leaving the intake box 42 and the duct on the main body 102 side, and the dust box 41 and the intake box 42 can be taken out from the main body 102 as a unit. Furthermore, only the duct can be removed from the intake box 42.

  14 to 16 show a dust collector 200 according to another embodiment of the present invention. In each figure, the same parts as those in FIGS. The dust collector 200 includes a HEPA filter unit 104 that houses a HEPA filter (High Efficiency Particulate Air Filter) between the exhaust unit 101 and the main body unit 102. About another structure, it is the same as FIGS. 1-3.

  The HEPA filter unit 104 includes a housing 50, and a door 51 that can be opened and closed is provided on the front surface of the housing 50. The door 51 is attached to the housing 50 with a hinge (not shown) at the left end in FIG. 14, and is attached to the housing 50 with a catch clip 52 at the right end. As shown in FIGS. 15 and 16, a box-type HEPA filter 53 is accommodated in the housing 50. The HEPA filter 53 is a high-performance air filter capable of collecting 99.97% or more of fine particles having a particle diameter of 0.3 μm in a gas.

  Windows are formed on the upper surface and the bottom surface of the housing 50, and the internal space of the housing 50 communicates with the internal space of the exhaust portion 101 and the internal space of the main body portion 102. For this reason, the gas from which the dust is removed by the filter 15 in the main body 102 flows into the HEPA filter 104, and after the particulates are almost completely removed by the HEPA filter 53, the gas is sent from the HEPA filter 104 to the exhaust unit 101. It is. As a result, a high-purity clean gas that does not substantially contain fine particles is discharged from the exhaust hole 3 of the exhaust unit 101. Moreover, in this dust collector 200, cleaning of the air blower 7 of the exhaust part 101 becomes unnecessary.

  In the present invention, the following various embodiments can be adopted in addition to the embodiments described above.

In the above embodiment, the filter 15 has a cylindrical molded filter using nonwoven as filter medium, three-dimensional shape of the filter 15 is not limited to a cylindrical, or may be a polygonal cylindrical body. Further, the upper portion 15a of the filter 15 may be a lid that can be removed from the filter body. In this case, the upper surface 15a can be removed and the inner surface of the filter 15 can be easily cleaned.

  In the said embodiment, although the structure shown in FIGS. 5-8 was mentioned as an example as an attachment structure of the filter 15, you may employ | adopt structures other than these. For example, in FIG. 7, instead of providing the partition plate 10b with a boss portion 10g formed with an internal thread, a nut member (not shown) formed with an internal thread is used for the filter 15 protruding downward from the hole 10d. A nut member may be screwed into the boss portion 15g.

  In the above-described embodiment, an annular elastic member having a V-shaped groove along the outer periphery is used as the sealing members 30 and 40. However, the outer peripheral groove is not limited to a V-shape, for example, a U-shape. May be. Moreover, you may use the cyclic | annular elastic member which does not have a groove | channel on outer periphery. In short, the types of the sealing members 30 and 40 are not limited as long as the sealing members have moderate elasticity and sufficient sealing performance. For example, as shown in FIG. 17, a sealing member 30 having a V-shaped groove 30a along the outer periphery and a V-shaped groove 30b along the inner periphery may be used. In this case, the sealing member 30 comes into contact with the partition plate 10b at two locations, and a sealed space is formed between them, so that the sealing performance is improved. Moreover, you may use the cyclic | annular sealing member 30 which has the groove | channel 30c formed along the circumferential direction in each of an outer periphery, an inner periphery, an upper surface, and a lower surface as shown in FIG. Also in this case, since the sealing member 30 contacts the partition plate 10b at two locations, the sealing performance is improved. The duct sealing member 40 (FIGS. 12C and 12D) can employ the same structure as the sealing member 30 shown in FIGS.

  In the above embodiment, one (FIG. 10) or two (FIG. 11) drive members 25a of the rotary shaft 25 of the scraping portion 16 are provided in the rotational direction of the rotary shaft 25. It is not restricted to this, You may provide the three or more drive members 25a in the rotation direction of the rotating shaft 25. FIG. In this case, since the striking member 26c strikes the filter 15 three times or more by one rotation of the rotating shaft 25, dust adhering to the filter 15 can be more efficiently removed.

  In the embodiment, as shown in FIG. 9, the two rotation shafts 25 provided corresponding to each row of the filter 15 are individually rotated by separate handles H. However, the two rotation shafts 25 are provided. It is also possible to provide a mechanism for interlocking the rotary shafts 25 and rotate each rotary shaft 25 by one handle H. Further, the number of the rotation shafts 25 is not limited to two, and three or more may be provided according to the number of columns of the filter 15.

  In the embodiment, the rotating shaft 25 is manually rotated by the handle H, but the rotating shaft 25 may be rotated by an electric motor.

  In the above-described embodiment, the impact mechanism 26 is moved up and down by rotating the rotary shaft 25 with the handle H. However, the impact mechanism 26 may be moved up and down by other means. For example, the striking mechanism 26 may be pulled up or down by connecting a rope or string to the striking mechanism 26 and operating them by hand. Further, the striking mechanism 26 may be moved up and down by an electric cylinder. Further, the striking mechanism 26 may be moved up and down by an operation member that moves in the front-rear direction and a link mechanism that converts the movement in the front-rear direction of the operation member into a movement in the up-down direction.

  In the embodiment described above, the scraping portion 16 is disposed above the filter 15, but the scraping portion of the present invention may be disposed on the side of the filter 15.

  In the above embodiment, as shown in FIGS. 12 and 13, the catch clips 20f and 42f are used as attachments for detachably attaching the intake boxes 20 and 42 to the housing 10, but the catch clips 20f and 42f Instead, a hook piece or the like may be provided in the intake boxes 20 and 42. Similarly, a hook piece or the like may be provided in the dust box 22 instead of the catch clip 22c.

  In the above-described embodiment, the HEPA filter 53 is used (FIGS. 15 and 16). Alternatively, a ULPA filter (Ultra Low Penetration Air Filter) having higher performance than the HEPA filter may be used.

  In the above embodiment, the dust collectors 100 and 200 for the food industry have been taken as an example, but the present invention can also be applied to a dust collector used in industries other than the food industry.

DESCRIPTION OF SYMBOLS 10 Housing | casing 10b Partition plate 10d Hole 15 Filter 15a Filter upper part 15b Opening part 16 Drop-off part 19 Stopper 20 Intake box 20b Baffle plate 21 Duct 22 Dust box 23 Gas introduction part 25 Rotating shaft 26 Impact mechanism 26c Impact member 26d Weight 30 Sealing Stop member 30a, 30b, 30c Groove 100, 200 Dust collector 102 Main body H Handle S2 Space outside filter

Claims (13)

A main body including a filter and a housing storing the filter;
A gas introduction part provided below the main body part;
A dust box provided below the gas introduction part;
A removal part for removing dust adhering to the filter,
The filter is a cylindrical molded filter obtained by molding a filter medium, the upper part is closed and the lower part has an opening, and the gas introduced from the gas introduction part through the opening part is It is configured to flow from the inside to the outside of the filter,
The gas introduction part and the space outside the filter in the casing are partitioned by a partition plate provided in a lower part of the casing,
A hole corresponding to the opening of the filter is formed in the partition plate,
The filter is installed on the partition plate in a state where a part of the filter is locked to a part of the partition plate in the vicinity of the hole of the partition plate,
A sealing member is provided between the filter and the partition plate to seal the periphery of the hole,
The sealing member is compressed by the weight of the filter and seals the periphery of the hole,
The scraping portion is disposed in the outer space and includes a striking mechanism that strikes the filter .
The striking mechanism strikes the upper part of the filter , so that dust adhering to the inside of the filter is wiped off and dropped into the dust box, and a force acting in the direction of compressing the sealing member is applied to the filter. A dust collector characterized by adding . The dust collector according to claim 1,
The striking mechanism has a striking member that strikes the top of the filter,
During operation of the dust collector that does not operate the impact mechanism, the impact member is placed on the filter and presses the filter from above. The dust collector according to claim 2, wherein
The dust collector is characterized in that the striking member includes a weight. In the dust collector in any one of Claim 1 thru | or 3 ,
The dust collector is characterized in that the sealing member is formed of an annular elastic member having a groove along the outer periphery. In the dust collector in any one of Claims 1 thru | or 4 ,
The dust collector according to claim 1, wherein the filter is a pleated cylindrical filter having a large number of ridges. In the dust collector in any one of Claims 1 thru | or 5 ,
The gas introduction part is detachable from the main body part,
The dust box is detachable from the gas introduction part. The dust collector according to any one of claims 1 to 6 ,
The gas introduction unit includes a duct into which gas is sucked, and an upper and lower intake box having an introduction port communicating with the duct,
A dust collector, wherein a baffle plate for adjusting a flow of gas introduced from the duct through the inlet is provided inside the intake box. In the dust collector in any one of Claim 1 thru | or 7 ,
The dust removal unit is located near the top of the filter,
The dust collector is capable of moving up and down and hits the upper part of the filter when moving downward . The dust collector according to claim 8 , wherein
The scraping portion further includes a rotating shaft,
The dust collector is characterized in that the striking mechanism moves up and down in conjunction with rotation of the rotating shaft. The dust collector according to claim 9 ,
With the rotating shaft and the striking mechanism engaged, the rotating shaft rotates, so that the striking mechanism moves up,
The dust collector, wherein when the engagement between the rotating shaft and the striking mechanism is released, the striking mechanism moves downward. In the dust collector of Claim 9 or Claim 10 ,
The dust collector, wherein the hitting mechanism hits the upper portion of the filter a plurality of times by one rotation of the rotating shaft. The dust collector according to any one of claims 9 to 11 ,
A handle for rotating the rotating shaft;
The dust collector is characterized in that the handle is exposed to the outside of the housing. The dust collector according to claim 12 ,
A stopper for locking the handle in place;
The dust collector according to claim 1, wherein when the handle is in the predetermined position, the striking mechanism is held at a position separated from an upper portion of the filter.

Images