CN114451680B - Dust removal low noise formula compact shelf - Google Patents
Dust removal low noise formula compact shelf Download PDFInfo
- Publication number
- CN114451680B CN114451680B CN202110068621.3A CN202110068621A CN114451680B CN 114451680 B CN114451680 B CN 114451680B CN 202110068621 A CN202110068621 A CN 202110068621A CN 114451680 B CN114451680 B CN 114451680B
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- CN
- China
- Prior art keywords
- blade
- blades
- dust
- compact shelf
- cover plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000428 dust Substances 0.000 title claims abstract description 56
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect 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
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B53/00—Cabinets or racks having several sections one behind the other
- A47B53/02—Cabinet systems, e.g. consisting of cabinets arranged in a row with means to open or close passages between adjacent cabinets
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a dust-removing low-noise compact shelf which comprises a shelf body (1), a base (2), a control panel (3), a rocking wheel (4), rollers (5), sliding grooves (6), vertical plates (7), a storage plate (8), a dust collection opening (9), a dust collection main pipe (10), an exhaust fan (11) and a dust collection filter box (12), wherein the exhaust fan is a centrifugal blower, and an impeller comprises a front cover plate, a rear cover plate, a plurality of first blades and a plurality of second blades, and is characterized in that: the first blade (15) is conical, the radial inner end is small, the radial outer end is large, the second blade (16) comprises a first conical part (161), a straight part (162) and a second conical part (163) which are connected in sequence, and the radial length of the second blade is smaller than that of the first blade. Through the structural design of the impeller, dust can be effectively prevented from being accumulated on the blades, so that the dust removing effect of the compact shelf is improved; can reduce the noise of the exhaust fan, thereby improving the noise reduction effect of the compact shelf.
Description
Technical Field
The invention relates to the technical field of compact shelves and compact cabinets, in particular to a dust-removing low-noise compact shelf.
Background
The compact shelf is used for placing books, data, electronic products, dry goods and other various articles, as shown in fig. 1, and comprises a shelf body 1, a base 2, a control panel 3, a rocking wheel 4, rollers 5, sliding grooves 6, vertical plates 7, a storage plate 8, a dust collection opening 9, a dust collection main pipe 10, an exhaust fan 11 and a dust collection filter box 12, wherein the control panel 3 and the rocking wheel 4 are arranged on the side face of the shelf body 1, the base 2 is arranged at the lower end of the shelf body 1, the sliding grooves 6 and/or the rollers 5 are arranged at the lower end of the base 2, a plurality of vertical plates 7 are arranged in the shelf body 1, a plurality of storage plates 8 are connected between the plurality of vertical plates 7, the upper end of the shelf body 1 is provided with a plurality of dust collection openings 9 which are connected with the exhaust fan 11 through the dust collection main pipe 10, and the exhaust fan 11 is connected with the dust collection filter box 12 through a pipeline. However, the existing exhaust fan has the problems that dust gathers on the blades and noise is large.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a dust-removing low-noise compact shelf, which can effectively prevent dust from gathering on the blades and reduce the damage of the blades by the structural design of the first blades and the second blades, thereby improving the dust removing performance of an exhaust fan/a centrifugal blower and the dust removing effect of the compact shelf. Through the design of the grooves, the outlet pressure of the impeller can be homogenized, so that the noise of the exhaust fan/centrifugal blower is reduced, and the noise reduction effect of the compact shelf is improved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a dust removal low noise type compact shelf, it includes support body (1), base (2), control panel (3), shake round (4), gyro wheel (5), spout (6), riser (7), put thing board (8), dust absorption mouth (9), dust absorption is responsible for (10), air exhauster (11), dust collection filter box (12), the side of support body is provided with control panel, shake round, the lower extreme of support body is provided with the base, the lower extreme of base is provided with spout and/or gyro wheel, be provided with a plurality of risers in the support body, be connected with a plurality of thing boards of putting between a plurality of risers, the upper end of support body just is located the support body and is provided with a plurality of dust absorption mouthful, a plurality of dust absorption mouthful are responsible for being connected with the air exhauster through the dust absorption, the air exhauster is connected with dust collection filter box through the pipeline, the air exhauster is centrifugal air-blower, centrifugal air blower includes the spiral case, the impeller includes front shroud (13), back shroud (14), a plurality of first blades (15), a plurality of second blades (16), a plurality of first blades set up along circumference interval, and a plurality of second blades set up, and a plurality of first blades are connected with the back shroud, a plurality of first blades, a plurality of second blades are connected with the back shroud, characterized in that between the front shroud. The first blade (15) is conical, the radial inner end is small, the radial outer end is large, the second blade (16) comprises a first conical part (161), a straight part (162) and a second conical part (163) which are connected in sequence, and the radial length of the second blade is smaller than that of the first blade.
Further, the first blade (15) has an outer radius R1, the second blade (16) has an outer radius R2, the second blade has an inner radius R3, R3 < R2 < R1, and r3= (0.35-0.55) R1, r2= (0.75-0.95) R1.
Further, the circumferential maximum thickness of the first blade (15) is greater than the circumferential maximum thickness of the second blade (16), and the circumferential maximum thickness of the first blade is equal to 1.1-2.0 times the circumferential maximum thickness of the second blade.
Further, a plurality of grooves (17) are formed in the rear cover plate (14) and located on the outer side of the second blades in the radial direction, the number of the grooves is equal to that of the second blades (16), and the grooves are correspondingly formed in positions.
Further, the groove (17) has an outer radius equal to R1 and an inner radius equal to R2.
Further, the circumferential width of the groove (17) is greater than the circumferential maximum thickness of the second blade (16), and the circumferential width of the groove is equal to 1.5-3 times the circumferential maximum thickness of the second blade.
Further, the taper angles of the first tapered portion (161) and the second tapered portion (163) are 20-30 °.
According to the dust-removing low-noise compact shelf, through the structural design of the first blades and the second blades, dust can be effectively prevented from being accumulated on the blades, damage to the blades is reduced, and therefore the dust removing performance of an exhaust fan/centrifugal blower is improved, and the dust removing effect of the compact shelf is improved. Through the design of the grooves, the outlet pressure of the impeller can be homogenized, so that the noise of the exhaust fan/centrifugal blower is reduced, and the noise reduction effect of the compact shelf is improved.
Drawings
FIG. 1 is a schematic view of a dust removing type compact shelf in the prior art;
FIG. 2 is a schematic diagram of the exhaust fan of the dust-removing low-noise compact shelf of the invention;
FIG. 3 is a schematic diagram of the exhaust fan of the dust-removing low-noise compact shelf of the invention;
fig. 4 is a schematic diagram of the structure of the exhaust fan of the dust-removing low-noise compact shelf of the invention.
In the figure: the dust collection device comprises a frame body 1, a base 2, a control panel 3, a rocking wheel 4, rollers 5, sliding grooves 6, a vertical plate 7, a storage plate 8, a dust collection opening 9, a dust collection main pipe 10, an exhaust fan 11, a dust collection filter box 12, a front cover plate 13, a rear cover plate 14, a first blade 15, a second blade 16, a groove 17, a first conical part 161, a straight part 162 and a second conical part 163.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1-4, a dust removal low noise type compact shelf, it includes support body 1, the base 2, control panel 3, shake the wheel 4, the gyro wheel 5, spout 6, riser 7, put thing board 8, dust absorption mouth 9, dust absorption is responsible for 10, air exhauster 11, dust collection filter box 12, the side of support body 1 is provided with control panel 3, shake the wheel 4, the lower extreme of support body 1 is provided with base 2, the lower extreme of base 2 is provided with spout 6 and/or gyro wheel 5, be provided with a plurality of risers 7 in the support body 1, be connected with a plurality of thing boards 8 between a plurality of risers 7, the upper end of support body 1 just is provided with a plurality of dust absorption mouths 9 in support body 1, a plurality of dust absorption mouths 9 are responsible for 10 and are connected with air exhauster 11 through the pipeline, air exhauster 11 is connected with dust collection filter box 12, air exhauster 11 is centrifugal blower, centrifugal blower includes the spiral case, the impeller includes front cover 13, back cover plate 14, a plurality of first blades 15, a plurality of second blades 16 are connected with a plurality of blades 16 along a plurality of circumference blades 16, a plurality of blades 16 are located between a plurality of back cover plates 13, and a plurality of blades are connected with a plurality of second blades 14, characterized in that they are located between the front cover plate 13: the first blade 15 is tapered, and has a small radially inner end and a large radially outer end, and the second blade 16 includes a first tapered portion 161, a straight portion 162, and a second tapered portion 163 connected in this order, and the radial length of the second blade 16 is smaller than the radial length of the first blade 15.
The taper angle of the first tapered portion (161) and/or the second tapered portion (163) is 20-30 °, preferably 25 °.
The invention relates to a dust-removing low-noise compact shelf, which is characterized in that through the structural design of a first blade 15 and a second blade 16, in particular to a first blade 15 is conical, the second blade 16 comprises a first conical part 161, a straight part 162 and a second conical part 163 which are sequentially connected, so that dust can be effectively prevented from gathering on the blades, the damage of the blades is reduced, the dust removing performance of an exhaust fan/centrifugal blower is improved, and the dust removing effect of the compact shelf is improved.
Further, the first blades 15 have an outer radius R1, the second blades 16 have an outer radius R2, the second blades 16 have an inner radius R3, R3 < R2 < R1, in particular r3= (0.4-0.5) R1, preferably 0.45; r2= (0.8-0.9) R1, preferably 0.85.
Further, the circumferential maximum thickness of the first blades 15 is greater than the circumferential maximum thickness of the second blades 16, and the circumferential maximum thickness of the first blades 15 is equal to 1.1-1.6 times, preferably 1.4 times, the circumferential maximum thickness of the second blades 16.
As shown in fig. 2-4, further, a plurality of grooves 17 are provided on the rear cover plate 14 and located radially outside the second blades 16, the number of the grooves 17 is equal to that of the second blades 16, the grooves 17 are located correspondingly, the outer radius of the grooves 17 is equal to R1, and the inner radius is equal to R2.
Further, the circumferential width of the groove 17 is larger than the circumferential maximum thickness of the second blade 16, and the circumferential width of the groove 17 is equal to 1.5-2.5 times, preferably 2 times, the circumferential maximum thickness of the second blade 16.
According to the dust-removing low-noise compact shelf, through the design of the grooves 17, specifically, the grooves 17 are formed in the rear cover plate 14 and located on the outer side of the second blades 16 in the radial direction, the number of the grooves 17 is equal to that of the second blades 16, the grooves are correspondingly arranged in positions, and the outlet pressure of the impeller can be homogenized, so that the noise of an exhaust fan/a centrifugal blower is reduced, and the noise reduction effect of the compact shelf is improved.
The invention relates to a dust-removing low-noise compact shelf, which is characterized in that through the structural design of a first blade 15 and a second blade 16, in particular to a first blade 15 is conical, the second blade 16 comprises a first conical part 161, a straight part 162 and a second conical part 163 which are sequentially connected, so that dust can be effectively prevented from gathering on the blades, the damage of the blades is reduced, the dust removing performance of an exhaust fan/centrifugal blower is improved, and the dust removing effect of the compact shelf is improved. Through the design of the grooves 17, specifically, a plurality of grooves 17 are formed in the rear cover plate 14 and located on the radial outer side of the second blades 16, the number of the grooves 17 is equal to that of the second blades 16, the grooves are correspondingly arranged, the outlet pressure of the impeller can be homogenized, the noise of the exhaust fan/centrifugal blower is reduced, and the noise reduction effect of the compact shelf is improved.
The above-described embodiments are illustrative of the present invention and are not intended to be limiting, and it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents.
Claims (3)
1. The exhaust fan is a centrifugal blower, and comprises a volute and an impeller, wherein the impeller comprises a front cover plate (13), a rear cover plate (14), a plurality of first blades (15) and a plurality of second blades (16), the first blades and the second blades are arranged at intervals along the circumferential direction, and the first blades and the second blades are connected between the front cover plate and the rear cover plate;
the method is characterized in that: the first blade (15) is conical, the radial inner end is small, the radial outer end is large, the second blade (16) comprises a first conical part (161), a straight part (162) and a second conical part (163) which are connected in sequence, and the radial length of the second blade is smaller than that of the first blade;
the first blade (15) has an outer radius R1, the second blade (16) has an outer radius R2, the second blade has an inner radius R3, R3 < R2 < R1, and r3= (0.35-0.55) R1, r2= (0.75-0.95) R1;
a plurality of grooves (17) are formed in the rear cover plate (14) and located on the outer side of the second blades in the radial direction, the number of the grooves is equal to that of the second blades (16), and the grooves are correspondingly formed in positions; the circumferential maximum thickness of the first blade (15) is greater than the circumferential maximum thickness of the second blade (16), and the circumferential maximum thickness of the first blade is 1.1-2.0 times of the circumferential maximum thickness of the second blade; the outer radius of the groove (17) is equal to R1, and the inner radius is equal to R2;
the circumferential width of the groove (17) is greater than the circumferential maximum thickness of the second blade (16), and the circumferential width of the groove is equal to 1.5-3 times the circumferential maximum thickness of the second blade.
2. An exhaust fan for a dust removing low noise type compact shelf according to claim 1, wherein the taper angles of the first and second tapered portions (161, 163) are 20-30 °.
3. The utility model provides a dust removal low noise type compact shelf, it includes an air exhauster for removing dust low noise type compact shelf according to claim 1, it includes support body (1), base (2), control panel (3), rocking wheel (4), gyro wheel (5), spout (6), riser (7), put thing board (8), dust absorption mouth (9), dust absorption is responsible for (10), air exhauster (11), dust collection filter box (12), the side of support body is provided with control panel, rocking wheel, the lower extreme of support body is provided with the base, the lower extreme of base is provided with spout and/or gyro wheel, be provided with a plurality of risers in the support body, be connected with a plurality of thing boards of putting between a plurality of risers, the upper end of support body just is provided with a plurality of dust absorption mouths in the support body, a plurality of dust absorption mouths are connected with the air exhauster through the dust absorption is responsible for, the air exhauster is connected with dust collection filter box through the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110068621.3A CN114451680B (en) | 2021-01-19 | 2021-01-19 | Dust removal low noise formula compact shelf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110068621.3A CN114451680B (en) | 2021-01-19 | 2021-01-19 | Dust removal low noise formula compact shelf |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114451680A CN114451680A (en) | 2022-05-10 |
| CN114451680B true CN114451680B (en) | 2024-03-19 |
Family
ID=81405913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110068621.3A Active CN114451680B (en) | 2021-01-19 | 2021-01-19 | Dust removal low noise formula compact shelf |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114451680B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2472299A1 (en) * | 2003-07-07 | 2005-01-07 | Snecma Moteurs | Improvement in the retention capacity of an assymetric hammer attachment blade |
| CN205873027U (en) * | 2016-06-16 | 2017-01-11 | 江西宏达保安器材有限公司 | Dampproof compact shelving |
| CN207892888U (en) * | 2017-10-25 | 2018-09-21 | 莱克电气股份有限公司 | A kind of dust catcher noise reduction movable vane wheel and dust catcher |
| CN109538528A (en) * | 2019-01-30 | 2019-03-29 | 吉林大学 | A kind of centrifugal fan impeller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6893220B2 (en) * | 2002-06-20 | 2005-05-17 | Delphi Technologies, Inc. | Centrifugal fan |
-
2021
- 2021-01-19 CN CN202110068621.3A patent/CN114451680B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2472299A1 (en) * | 2003-07-07 | 2005-01-07 | Snecma Moteurs | Improvement in the retention capacity of an assymetric hammer attachment blade |
| CN205873027U (en) * | 2016-06-16 | 2017-01-11 | 江西宏达保安器材有限公司 | Dampproof compact shelving |
| CN207892888U (en) * | 2017-10-25 | 2018-09-21 | 莱克电气股份有限公司 | A kind of dust catcher noise reduction movable vane wheel and dust catcher |
| CN109538528A (en) * | 2019-01-30 | 2019-03-29 | 吉林大学 | A kind of centrifugal fan impeller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114451680A (en) | 2022-05-10 |
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