CN110124405B - Computer room dust remover - Google Patents
Computer room dust remover Download PDFInfo
- Publication number
- CN110124405B CN110124405B CN201910457718.6A CN201910457718A CN110124405B CN 110124405 B CN110124405 B CN 110124405B CN 201910457718 A CN201910457718 A CN 201910457718A CN 110124405 B CN110124405 B CN 110124405B
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- fixedly connected
- rods
- cylinder
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- wheel
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- 239000000428 dust Substances 0.000 title claims abstract description 73
- 239000004744 fabric Substances 0.000 claims description 29
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning In General (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
The invention relates to a dust remover, in particular to a dust remover for a computer room, which comprises a swing seat, a traveling wheel, a dust removing frame and a dust removing device. The swing seat comprises a middle seat, oblique rods, gears, speed reducing motors, a weight block and a shaft rod, wherein the shaft rod is fixedly connected with the front end and the rear end of the middle seat, the oblique rods are fixedly connected with the left end and the right end of the middle seat, the outer ends of the two oblique rods are downwards inclined, the weight block is fixedly connected with the lower end of the middle seat, the speed reducing motors are fixedly connected with the front end and the rear end of the weight block, and the gears are fixedly connected with the outer end output shafts of the two speed reducing motors.
Description
Technical Field
The invention relates to a dust remover, in particular to a dust remover for a computer room.
Background
The utility model discloses a novel movable bag type dust collector with the application number of CN201720253482.0, which comprises a bag type dust collector box body and a telescopic gas collecting hood, wherein the bag type dust collector box body is connected with the telescopic gas collecting hood, and a gas outlet is arranged on the bag type dust collector box body; wheels are arranged at the bottom of the bag type dust collector box body. This novel portable bag collector can directly collect the waste gas that dust exhaust emission department produced, and is with strong points. However, the bag of the bag type dust collector is easy to accumulate dust, so that the ventilation of the bag is not smooth, and the normal work of the dust collector is influenced.
Disclosure of Invention
The invention provides a computer room dust remover which has the beneficial effects that inertia of a swing seat during walking can be utilized, so that a dust removing device can vibrate continuously, and dust is prevented from accumulating on filter cloth to cause unsmooth ventilation of filter cloth.
The invention relates to a dust remover, in particular to a dust remover for a computer room, which comprises a swing seat, a traveling wheel, a dust removing frame and a dust removing device.
The swing seat comprises a middle seat, oblique rods, gears, speed reducing motors, a weight block and a shaft rod, wherein the shaft rod is fixedly connected to the front end and the rear end of the middle seat, the oblique rods are fixedly connected to the left end and the right end of the middle seat, the outer ends of the two oblique rods incline downwards, the weight block is fixedly connected to the lower end of the middle seat, the speed reducing motors are fixedly connected to the front end and the rear end of the weight block, and the gears are fixedly connected to the output shafts of the outer ends of the two speed reducing;
the travelling wheel comprises a rim, an inner ring, hubs and a toothed ring, wherein the inner ring is positioned in the center of the rim, the inner ring is connected with the rim through a plurality of hubs, and the toothed ring is fixedly connected to the position of an inner ring of the rim; the front and the back of the travelling wheels are provided with two travelling wheels, the two inner rings are respectively and rotationally connected to the two shaft levers, and the two gears are respectively in meshing transmission with the two gear rings;
the dust removal frame comprises frame rods, blocking pieces, spring sleeve rods, convex plates and single wheels, the right ends of the two frame rods are respectively rotatably connected to the two shaft rods, the single wheel is rotatably connected between the left ends of the two frame rods, the convex plates are fixedly connected to the outer sides of the two frame rods, the spring sleeve rods are fixedly connected to the upper ends of the two convex plates, the blocking pieces are fixedly connected to the upper ends of the two spring sleeve rods, the lower ends of the two spring sleeve rods are respectively sleeved with a compression spring I, and the upper ends of the two spring sleeve rods are respectively sleeved with a compression spring II;
the dust removal device comprises a cylinder, a bottom plate, a cylinder head, a miniature suction pump, vent holes and filter cloth, wherein the front end and the rear end of the bottom plate are respectively connected to two spring loop bars in a sliding mode, two compression springs I are located at the lower end of the bottom plate, two compression springs II are located at the upper end of the bottom plate, the upper end of the bottom plate is fixedly connected with the cylinder, the left end of the cylinder is provided with the miniature suction pump, the left end of the cylinder is provided with a plurality of vent holes, the left end of the bottom plate is fixedly connected to the lower side of the bottom plate.
The swing seat further comprises a rotating wheel, and the outer ends of the two inclined rods are rotatably connected with the rotating wheel.
The swing seat further comprises a limiting ring I and a limiting ring II, the outer ends of the two shaft levers are fixedly connected with the two limiting ring I, the inner ends of the two shaft levers are fixedly connected with the limiting ring II, the two limiting ring II are respectively attached to the outer sides of the two frame levers, and the front end face and the rear end face of each of the two inner rings are respectively attached to the corresponding two limiting ring I.
The swing seat further comprises a power supply groove, the lower end of the weight block is provided with the power supply groove, a power supply is placed in the power supply groove, and the power supply provides power for the two speed reducing motors and the micro air suction pump.
The travelling wheel further comprises an additional ring and protruding heads, the outer sides of the two rims are fixedly connected with the additional ring, and the outer rings of the two additional rings are uniformly distributed with the plurality of protruding heads in an annular mode.
The dust removing device further comprises a limiting block and an inserting cylinder, filter cloth is arranged at the left end of the inserting cylinder, the inserting cylinder is inserted at the left end of the inserting cylinder, and the limiting block is fixedly connected to the right end of the inserting cylinder.
The outer sides of the two rims are detachably connected with an additional ring through screws.
The distance between the two rotating wheels and the axes of the two shaft levers is larger than the outer diameter of the rim.
The dust remover for the computer room has the beneficial effects that:
according to the computer room dust remover, inertia of the swinging seat during walking can be utilized, so that the dust removing device can vibrate continuously, and dust is prevented from accumulating on filter cloth to cause unsmooth ventilation of the filter cloth.
The dust removal device is small in size, convenient to move and convenient for removing dust from places which are not easy to clean, such as a table bottom.
When the additional ring and the raised head are installed, two walking wheels can walk on a carpet of a machine room conveniently, or the ground with more wires in the machine room can walk conveniently. In addition, the invention can further prevent the filter cloth from being blocked due to the dust accumulation at the filter cloth by utilizing the vibration generated when the rim rolls through the plurality of raised heads.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of the overall structure of a computer room dust collector of the present invention;
FIG. 2 is a schematic view of the overall structure of a dust collector of a computer room according to the present invention;
FIG. 3 is a schematic view of a part of the structure of a dust collector of a computer room according to the present invention;
FIG. 4 is a first schematic structural view of the rocking base;
FIG. 5 is a second schematic structural view of the rocking base;
FIG. 6 is a first structural schematic diagram of a traveling wheel;
FIG. 7 is a structural schematic view II of a traveling wheel;
FIG. 8 is a schematic structural view of a dust-removing frame;
FIG. 9 is a first schematic structural diagram of a dust removing device;
FIG. 10 is a second schematic structural view of the dust removing device;
fig. 11 is a partial structural schematic diagram of the dust removing device.
In the figure: a swing seat 1; a middle seat 1-1; 1-2 of an inclined rod; 1-3 of a rotating wheel; gears 1-4; 1-5 of a speed reducing motor; 1-6 of a weight block; a limiting ring I1-7; 1-8 parts of a shaft lever; a spacing ring II 1-9; 1-10 of a power supply groove; a traveling wheel 2; a rim 2-1; 2-2 of an inner ring; 2-3 of a hub; 2-4 of extra ring; 2-5 of raised heads; 2-6 parts of a toothed ring; a dust removal frame 3; a rack rod 3-1; 3-2 parts of a baffle plate; 3-3 parts of a spring sleeve rod; 3-4 parts of a convex plate; 3-5 of a single wheel; a dust removing device 4; a cylinder 4-1; a bottom plate 4-2; 4-3 of a bottom sheet; 4-4 of a cylindrical head; 4-5 of a limiting block; 4-6 parts of an inserting cylinder; 4-7 parts of a micro air suction pump; 4-8 of vent holes; and 4-9 parts of filter cloth.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The first embodiment is as follows:
the embodiment is described below with reference to fig. 1-11, and relates to a dust remover, in particular to a dust remover for a computer room, which comprises a swing seat 1, a traveling wheel 2, a dust removing frame 3 and a dust removing device 4, wherein the dust removing device 4 can vibrate continuously by using the inertia of the swing seat 1 during traveling, so that dust is prevented from accumulating on filter cloth 4-9 to cause unsmooth ventilation of the filter cloth 4-9.
The swing seat 1 comprises a middle seat 1-1, inclined rods 1-2, gears 1-4, speed reduction motors 1-5, a weight 1-6 and shaft rods 1-8, wherein the front end and the rear end of the middle seat 1-1 are fixedly connected with the shaft rods 1-8, the left end and the right end of the middle seat 1-1 are fixedly connected with the inclined rods 1-2, the outer ends of the two inclined rods 1-2 incline downwards, the lower end of the middle seat 1-1 is fixedly connected with the weight 1-6, the front end and the rear end of the weight 1-6 are fixedly connected with the speed reduction motors 1-5, and the output shafts of the outer ends of the two speed reduction motors 1-5 are fixedly connected with the gears 1-4; the weight of the weight block 1-6 is heavier, so that the weight block 1-6 always faces to the lower end, the two inclined rods 1-2 can play a balance role, and the two gear wheels 1-4 can be controlled to rotate independently when the two speed reducing motors 1-5 rotate independently.
The travelling wheel 2 comprises a rim 2-1, an inner ring 2-2, hubs 2-3 and toothed rings 2-6, wherein the inner ring 2-2 is positioned at the center of the rim 2-1, the inner ring 2-2 is connected with the rim 2-1 through a plurality of hubs 2-3, and the inner ring of the rim 2-1 is fixedly connected with the toothed rings 2-6; two traveling wheels 2 are arranged in front of and behind each other, two inner rings 2-2 are respectively and rotatably connected to two shaft levers 1-8, and two gears 1-4 are respectively in meshing transmission with two gear rings 2-6; the two rims 2-1 can rotate on the two shaft rods 1-8 respectively, the two gears 1-4 can drive the two gear rings 2-6 to rotate respectively when rotating, and further drive the two rims 2-1 to rotate, so that power is provided for the movement of the invention, and when one rim 2-1 rotates and the other rim 2-1 stops, the turning movement of the invention can be controlled. When the movement of the invention is suddenly stopped, the swinging seat 1 can swing and rotate under the action of inertia, and then the two inclined rods 1-2 can also swing and rotate along with the swinging.
The dust removing frame 3 comprises frame rods 3-1, blocking pieces 3-2, spring sleeve rods 3-3, protruding plates 3-4 and single wheels 3-5, the right ends of the two frame rods 3-1 are respectively and rotatably connected to the two shaft rods 1-8, the single wheels 3-5 are rotatably connected between the left ends of the two frame rods 3-1, the protruding plates 3-4 are fixedly connected to the outer sides of the two frame rods 3-1, the spring sleeve rods 3-3 are fixedly connected to the upper ends of the two protruding plates 3-4, the blocking pieces 3-2 are fixedly connected to the upper ends of the two spring sleeve rods 3-3, compression springs I are sleeved at the lower ends of the two spring sleeve rods 3-3, and compression springs II are sleeved at the upper ends of the two spring sleeve rods 3-3; the two frame rods 3-1 can rotate relative to the two shaft rods 1-8 respectively, when the two travelling wheels 2 move, the dust removing frame 3 can be driven to move, the single wheels 3-5 are arranged to facilitate the movement of the dust removing frame 3, and the single wheels 3-5 are always in contact with the ground.
The dust removal device 4 comprises a cylinder 4-1, a bottom plate 4-2, a bottom plate 4-3, a cylinder head 4-4, a micro air suction pump 4-7, vent holes 4-8 and filter cloth 4-9, the front end and the rear end of the bottom plate 4-2 are respectively connected on two spring loop bars 3-3 in a sliding manner, two compression springs I are both positioned at the lower end of the bottom plate 4-2, two compression springs II are both positioned at the upper end of the bottom plate 4-2, the upper end of the bottom plate 4-2 is fixedly connected with the cylinder 4-1, the left end of the cylinder 4-1 is provided with the micro air suction pump 4-7, the left end of the cylinder 4-1 is provided with a plurality of vent holes 4-8, the left end of the bottom plate 4-3 is fixedly connected at the lower side of the bottom plate 4-2, the right end, the cylinder 4-1 is internally provided with filter cloth 4-9. The micro aspirator pump 4-7 can pump air, thereby drawing air into the cylinder 4-1, and dust in the air can be filtered by the filter cloth 4-9, and finally the dust is left in the cylinder 4-1, the bottom plate 4-2 can vertically slide on the two spring loop bars 3-3, the arrangement of the two compression springs I and the two compression springs II is convenient for the bottom plate 4-2 to vibrate up and down, when the swing seat 1 swings and rotates under the action of inertia, the inclined rod 1-2 at the left end can also swing and rotate, and the inclined rod 1-2 at the left end can hit the cylindrical head 4-4 on the bottom plate 4-3 when swinging and rotating, further, the inertia generated during the movement of the invention is utilized to drive the bottom plate 4-2 and the cylinder 4-1 to vibrate up and down, thereby preventing the filter cloth 4-9 from being blocked due to the accumulation of dust at the filter cloth 4-9.
The second embodiment is as follows:
referring to fig. 1-11, the embodiment will be described, wherein the swing base 1 further comprises rotating wheels 1-3, and the outer ends of the two diagonal rods 1-2 are rotatably connected with the rotating wheels 1-3. When the swing amplitude of the swing seat 1 is larger, one of the rotating wheels 1-3 can be contacted with the ground, so that the swing seat 1 is prevented from swinging too much.
The third concrete implementation mode:
the embodiment is described below with reference to fig. 1 to 11, the swing seat 1 further includes two limit rings I1-7 and two limit rings II1-9, the outer ends of the two shafts 1-8 are fixedly connected with the two limit rings I1-7, the inner ends of the two shafts 1-8 are fixedly connected with the two limit rings II1-9, the two limit rings II1-9 are respectively attached to the outer sides of the two frame rods 3-1, and the front and rear end faces of the two inner rings 2-2 are respectively attached to the corresponding two limit rings I1-7. The limiting ring I1-7 and the limiting ring II1-9 both play a limiting role.
The fourth concrete implementation mode:
referring to fig. 1-11, the embodiment will be described, wherein the swing base 1 further comprises power supply grooves 1-10, the lower ends of the weights 1-6 are provided with the power supply grooves 1-10, and a power supply is placed in the power supply grooves 1-10 and supplies power to the two speed reducing motors 1-5 and the micro air suction pumps 4-7.
The fifth concrete implementation mode:
the embodiment is described below with reference to fig. 1 to 11, the traveling wheel 2 further includes an additional ring 2-4 and protruding heads 2-5, the outer sides of the two rims 2-1 are fixedly connected with the additional ring 2-4, and the outer rings of the two additional rings 2-4 are uniformly distributed with a plurality of protruding heads 2-5 in an annular shape. When the two traveling wheels 2 need to walk on the machine room carpet and are not easy to walk, or more wires are arranged on the ground of the machine room, after the additional ring 2-4 and the raised heads 2-5 are installed, the machine room carpet can conveniently walk through the plurality of raised heads 2-5 which are uniformly distributed in the annular shape, and the plurality of raised heads 2-5 which are uniformly distributed in the annular shape can conveniently cross over the wires on the ground of the machine room. And when the wheel rim 2-1 rolls through the plurality of raised heads 2-5, the vibration generated is larger, so that the dust removing device 4 is vibrated, and the filter cloth 4-9 is further prevented from being blocked due to the accumulation of dust at the filter cloth 4-9.
The sixth specific implementation mode:
the embodiment is described below with reference to fig. 1 to 11, the dust removing device 4 further includes a limiting block 4-5 and an insertion cylinder 4-6, the left end of the insertion cylinder 4-6 is provided with filter cloth 4-9, the insertion cylinder 4-6 is inserted into the left end of the cylinder 4-1, and the right end of the insertion cylinder 4-6 is fixedly connected with the limiting block 4-5. So that the insertion cylinder 4-6 and the filter cloth 4-9 are easy to disassemble and clean.
The seventh embodiment:
the present embodiment will be described with reference to fig. 1 to 11, wherein the outer sides of the two rims 2-1 are detachably connected with the outer rings 2-4 by screws. The disassembly of the additional rings 2-4 is convenient.
The specific implementation mode is eight:
the embodiment will now be described with reference to figures 1-11, in which the two wheels 1-3 are spaced from the axis of the two axles 1-8 by a distance greater than the outer diameter of the rim 2-1.
The working principle of the invention is as follows: the weight of the weight block 1-6 is heavier, so that the weight block 1-6 always faces to the lower end, the two inclined rods 1-2 can play a balance role, and the two gear wheels 1-4 can be controlled to rotate independently when the two speed reducing motors 1-5 rotate independently. The two rims 2-1 can rotate on the two shaft rods 1-8 respectively, the two gears 1-4 can drive the two gear rings 2-6 to rotate respectively when rotating, and further drive the two rims 2-1 to rotate, so that power is provided for the movement of the invention, and when one rim 2-1 rotates and the other rim 2-1 stops, the turning movement of the invention can be controlled. When the movement of the invention is suddenly stopped, the swinging seat 1 can swing and rotate under the action of inertia, and then the two inclined rods 1-2 can also swing and rotate along with the swinging. The two frame rods 3-1 can rotate relative to the two shaft rods 1-8 respectively, when the two travelling wheels 2 move, the dust removing frame 3 can be driven to move, the single wheels 3-5 are arranged to facilitate the movement of the dust removing frame 3, and the single wheels 3-5 are always in contact with the ground. The micro aspirator pump 4-7 can pump air, thereby drawing air into the cylinder 4-1, and dust in the air can be filtered by the filter cloth 4-9, and finally the dust is left in the cylinder 4-1, the bottom plate 4-2 can vertically slide on the two spring loop bars 3-3, the arrangement of the two compression springs I and the two compression springs II is convenient for the bottom plate 4-2 to vibrate up and down, when the swing seat 1 swings and rotates under the action of inertia, the inclined rod 1-2 at the left end can also swing and rotate, and the inclined rod 1-2 at the left end can hit the cylindrical head 4-4 on the bottom plate 4-3 when swinging and rotating, further, the inertia generated during the movement of the invention is utilized to drive the bottom plate 4-2 and the cylinder 4-1 to vibrate up and down, thereby preventing the filter cloth 4-9 from being blocked due to the accumulation of dust at the filter cloth 4-9. When the swing amplitude of the swing seat 1 is larger, one of the rotating wheels 1-3 can be contacted with the ground, so that the swing seat 1 is prevented from swinging too much. When the two traveling wheels 2 need to walk on the machine room carpet and are not easy to walk, or more wires are arranged on the ground of the machine room, after the additional ring 2-4 and the raised heads 2-5 are installed, the machine room carpet can conveniently walk through the plurality of raised heads 2-5 which are uniformly distributed in the annular shape, and the plurality of raised heads 2-5 which are uniformly distributed in the annular shape can conveniently cross over the wires on the ground of the machine room. And when the wheel rim 2-1 rolls through the plurality of raised heads 2-5, the vibration generated is larger, so that the dust removing device 4 is vibrated, and the filter cloth 4-9 is further prevented from being blocked due to the accumulation of dust at the filter cloth 4-9.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457718.6A CN110124405B (en) | 2019-05-29 | 2019-05-29 | Computer room dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457718.6A CN110124405B (en) | 2019-05-29 | 2019-05-29 | Computer room dust remover |
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| Publication Number | Publication Date |
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| CN110124405A CN110124405A (en) | 2019-08-16 |
| CN110124405B true CN110124405B (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910457718.6A Active CN110124405B (en) | 2019-05-29 | 2019-05-29 | Computer room dust remover |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112619253A (en) * | 2020-12-15 | 2021-04-09 | 彩虹（合肥）液晶玻璃有限公司 | Industrial sewage filtration treatment equipment |
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| CN206473270U (en) * | 2016-10-09 | 2017-09-08 | 东莞市科玛装饰家具有限公司 | A bag type vacuum cleaner |
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| CN204522560U (en) * | 2015-04-01 | 2015-08-05 | 天津市嘉腾环保设备有限公司 | A kind of portable sack cleaner |
| CN206246137U (en) * | 2016-12-14 | 2017-06-13 | 李威特 | A kind of novel anchor rod machine dedusting denoising device in cultural relic protection project |
| CN207012710U (en) * | 2017-07-03 | 2018-02-16 | 长兴俊泽炉窑工程有限公司 | A kind of cement kiln Mobile dust remover |
| CN109249154A (en) * | 2018-09-29 | 2019-01-22 | 镇江微芯光子科技有限公司 | Industrial interior welding dust collect plant |
| CN109169571B (en) * | 2018-11-02 | 2021-06-08 | 蔡一伟 | Expelling parasite device for agricultural production |
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| DE102005013711A1 (en) * | 2005-03-24 | 2006-09-28 | Dürr Systems GmbH | Apparatus for separating wet paint overspray |
| CN206473270U (en) * | 2016-10-09 | 2017-09-08 | 东莞市科玛装饰家具有限公司 | A bag type vacuum cleaner |
| CN108421317A (en) * | 2018-04-16 | 2018-08-21 | 杨正 | Mobile air purifying vehicle |
| CN208426770U (en) * | 2018-04-17 | 2019-01-25 | 安徽科凌仪器有限公司 | A kind of air purification equipment using biological air purification filter element |
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