EP2050969A1 - Guide device for blowers - Google Patents
Guide device for blowers Download PDFInfo
- Publication number
- EP2050969A1 EP2050969A1 EP07118858A EP07118858A EP2050969A1 EP 2050969 A1 EP2050969 A1 EP 2050969A1 EP 07118858 A EP07118858 A EP 07118858A EP 07118858 A EP07118858 A EP 07118858A EP 2050969 A1 EP2050969 A1 EP 2050969A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- case
- blower
- plate
- apertures
- fixed plate
- Prior art date
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/003—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by throttling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/462—Fluid-guiding means, e.g. diffusers adjustable especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/51—Inlet
Definitions
- the present invention relates to a blower and more particularly, to a guide device of a blower and the guide device controls the volume of inlet air into the blower.
- a conventional blower for inflating inflatable huge kids toys is shown in Figs. 9 and 10 , and generally includes a base 3 which has a top hole 32 so that a motor 4 is inserted into the base 3 and fixed on a top of the base 3.
- the motor 4 drives a blade unit 41 which generates suction force to suck air into a case 5 fixed on the top of the base 3.
- the case 5 has an outlet 51 which is connected with the inflatable items so as to inflate the inflatable items by air.
- the base 3 includes at least one inlet 31 defined in a side of the base 3 so as to suck air into the base 3 and sends the air to the inflatable items.
- the conventional blower cannot adjust the volume that is to be sent into the inflatable items and wastes a lot of energy to keep the motor 4 to run so as to maintain the inflatable items in good shapes.
- the base 3 generally sits on the ground and dust, pebbles, or even small garbage is sucked into the inflatable items.
- the present invention intends to provide a blower having an adjustable guide device which is able to adjust the volume of air that is sucked into the blower so that the blower can be used to inflate inflatable items of different sizes.
- the present invention relates to a blower that comprises a main part including a case unit, a motor and a blade unit.
- the case unit includes an air inlet and an air outlet.
- An adjusting device is connected to the air outlet of the case unit and includes a fixed plate, a rotatable plate which is rotatably connected to the fixed plate.
- the fixed plate has two first apertures and the rotatable plate has two second apertures. The users rotate the rotatable plate to adjust a size of communication of the first and second apertures to control the volume of air into the blower.
- the blower of the present invention comprises a main part 1 which includes a case unit 11, a motor 14 and a blade unit 15.
- the case unit 11 includes a base 12 and a case 13.
- the base 12 includes a plurality of recesses 121 defined in a top thereof and the motor 14 includes plurality of lugs 141 which are engaged with the recesses 121 and fixed to the base 12 by bolts.
- the motor 14 is securely received in the base 12 and includes an output shaft 142 which is connected to the blade unit 15.
- At least one heat dispensing hole 122 is defined through a wall of the base 12 so as to cool the motor 14.
- the case 13 includes a through hole 131 and a cover plate 132 is connected to the through hole 131 of the case 13 and the air inlet 133 is defined through the cover plate 132.
- An inward and inclined guide surface 134 is defined around the air inlet 133 so that air can be guided and concentrated to enter into the case 13.
- the cover plate 132 has a curved top surface which includes a higher central portion and a lower periphery.
- the case 13 includes the air outlet 135 which is connected to an inflatable item (not shown) to introduce air into the inflatable item via the air outlet 135.
- An adjusting device 2 is connected to the air outlet 135 of the case unit 11 and includes a fixed plate 21, a rotatable plate 22 which is rotatably connected to the fixed plate 21.
- the fixed plate 21 includes a plurality of positioning pins 211 extending from an underside thereof so as to be inserted into holes in the top surface of the curved cover plate 132.
- a plurality of suction gaps 212 are defined between the fixed plate 21 and the cover plate 132 such that air can be sucked into the case 13 via the suction gaps 212.
- the fixed plate 21 includes a central hole 213 and a plurality of positioning holes 215, two stops 216 extend from a top of the fixed plate 21 and located beside the two first apertures 214.
- the rotatable plate 22 includes a pivot 221 on an underside thereof and the pivot 221 is rotatably inserted into the central hole 213.
- Two handles 222 extend from a top of the rotatable plate 22 so that the user may rotate the rotatable plate 22 by the handles 222.
- An extension 224 extends radially outward from a periphery of the rotatable plate 22 and can be stopped by one of the stops 216 when rotating the rotatable plate 22 relative to the fixed plate 21.
- a protrusion 225 extends from an underside of the rotatable plate 22 and is removably engaged with one of the positioning holes 215 to set the rotatable plate 22 relative to the fixed plate 21.
- the fixed plate 21 has two first apertures 214 and the rotatable plate 22 having two second apertures 223.
- the second apertures 223 can be adjusted to communicate the first apertures 214 so as to adjust the size of communication of the first and second apertures 214, 223.
- the air is sucked into the case 13 via the suction gaps 212 and the air inlet 133 via the communicated first and second apertures 214, 223. It is noted that the air sucked into the case 13 is from a certain height from the ground so that less dust, pebbles and garbage is involved.
- Fig. 5 if a smaller amount of air is needed to be sucked into the case 13, the user can rotate the rotatable plate 22 to partially cover the first and second apertures 214, 223.
- Fig. 6 shows that the first and second apertures 214, 223 can also be completely closed and air can only be sucked from the suction gaps 212 when needed.
- Figs. 7 and 8 show that the case 13 can be connected to a side of the main part 1 so that the air outlet 135 is located on a side of the blower and the air inlet 133 is defined in an end of the case 11.
- the adjusting device 2 is connected to the end of the case 11 and the first and second apertures 214, 223 are located on the same end with the air inlet 133.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A blower includes an adjusting device connected to the air outlet of the case unit and the adjusting device includes a fixed plate, a rotatable plate which is rotatably connected to the fixed plate. The fixed plate includes two first apertures and the rotatable plate includes two second apertures. The rotatable plate is rotated to adjust a size of communication of the first and second apertures so as to control the volume of air that is sucked into the blower.
Description
- The present invention relates to a blower and more particularly, to a guide device of a blower and the guide device controls the volume of inlet air into the blower.
- A conventional blower for inflating inflatable huge kids toys is shown in
Figs. 9 and10 , and generally includes abase 3 which has atop hole 32 so that amotor 4 is inserted into thebase 3 and fixed on a top of thebase 3. Themotor 4 drives ablade unit 41 which generates suction force to suck air into acase 5 fixed on the top of thebase 3. Thecase 5 has anoutlet 51 which is connected with the inflatable items so as to inflate the inflatable items by air. Thebase 3 includes at least oneinlet 31 defined in a side of thebase 3 so as to suck air into thebase 3 and sends the air to the inflatable items. However, the conventional blower cannot adjust the volume that is to be sent into the inflatable items and wastes a lot of energy to keep themotor 4 to run so as to maintain the inflatable items in good shapes. Besides, thebase 3 generally sits on the ground and dust, pebbles, or even small garbage is sucked into the inflatable items. - The present invention intends to provide a blower having an adjustable guide device which is able to adjust the volume of air that is sucked into the blower so that the blower can be used to inflate inflatable items of different sizes.
- The present invention relates to a blower that comprises a main part including a case unit, a motor and a blade unit. The case unit includes an air inlet and an air outlet. An adjusting device is connected to the air outlet of the case unit and includes a fixed plate, a rotatable plate which is rotatably connected to the fixed plate. The fixed plate has two first apertures and the rotatable plate has two second apertures. The users rotate the rotatable plate to adjust a size of communication of the first and second apertures to control the volume of air into the blower.
- The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
-
-
Fig. 1 is an exploded view to show the blower and the guide device of the present invention; -
Fig. 2 is a perspective view to show the blower with the guide device of the present invention; -
Fig. 3 is a cross sectional view to show the blower with the guide device of the present invention; -
Fig. 4 shows that the first and second apertures are fully opened; -
Fig. 5 shows that the first and second apertures are partially opened; -
Fig. 6 shows that the first and second apertures are completely closed; -
Fig. 7 shows the other embodiment of the blower wherein the adjusting device is connected to a side of the main part of the blower; -
Fig. 8 is a cross sectional view to show the blower inFig. 7 ; -
Fig. 9 is an exploded view to show a conventional blower, and -
Fig. 10 is a perspective view to show the conventional blower. - Referring to
Figs. 1 to 4 , the blower of the present invention comprises amain part 1 which includes acase unit 11, amotor 14 and ablade unit 15. Thecase unit 11 includes abase 12 and acase 13. Thebase 12 includes a plurality ofrecesses 121 defined in a top thereof and themotor 14 includes plurality oflugs 141 which are engaged with therecesses 121 and fixed to thebase 12 by bolts. Themotor 14 is securely received in thebase 12 and includes anoutput shaft 142 which is connected to theblade unit 15. At least one heat dispensinghole 122 is defined through a wall of thebase 12 so as to cool themotor 14. Thecase 13 includes a throughhole 131 and acover plate 132 is connected to the throughhole 131 of thecase 13 and theair inlet 133 is defined through thecover plate 132. An inward andinclined guide surface 134 is defined around theair inlet 133 so that air can be guided and concentrated to enter into thecase 13. Thecover plate 132 has a curved top surface which includes a higher central portion and a lower periphery. Thecase 13 includes theair outlet 135 which is connected to an inflatable item (not shown) to introduce air into the inflatable item via theair outlet 135. - An adjusting
device 2 is connected to theair outlet 135 of thecase unit 11 and includes afixed plate 21, arotatable plate 22 which is rotatably connected to thefixed plate 21. Thefixed plate 21 includes a plurality ofpositioning pins 211 extending from an underside thereof so as to be inserted into holes in the top surface of thecurved cover plate 132. A plurality ofsuction gaps 212 are defined between thefixed plate 21 and thecover plate 132 such that air can be sucked into thecase 13 via thesuction gaps 212. Thefixed plate 21 includes acentral hole 213 and a plurality ofpositioning holes 215, twostops 216 extend from a top of thefixed plate 21 and located beside the twofirst apertures 214. Therotatable plate 22 includes apivot 221 on an underside thereof and thepivot 221 is rotatably inserted into thecentral hole 213. Twohandles 222 extend from a top of therotatable plate 22 so that the user may rotate therotatable plate 22 by thehandles 222. Anextension 224 extends radially outward from a periphery of therotatable plate 22 and can be stopped by one of thestops 216 when rotating therotatable plate 22 relative to thefixed plate 21. Aprotrusion 225 extends from an underside of therotatable plate 22 and is removably engaged with one of thepositioning holes 215 to set therotatable plate 22 relative to thefixed plate 21. - The
fixed plate 21 has twofirst apertures 214 and therotatable plate 22 having twosecond apertures 223. When rotating therotatable plate 22, thesecond apertures 223 can be adjusted to communicate thefirst apertures 214 so as to adjust the size of communication of the first andsecond apertures - When the
motor 14 is activated, the air is sucked into thecase 13 via thesuction gaps 212 and theair inlet 133 via the communicated first andsecond apertures case 13 is from a certain height from the ground so that less dust, pebbles and garbage is involved. - As shown in
Fig. 5 , if a smaller amount of air is needed to be sucked into thecase 13, the user can rotate therotatable plate 22 to partially cover the first andsecond apertures Fig. 6 shows that the first andsecond apertures suction gaps 212 when needed. -
Figs. 7 and8 show that thecase 13 can be connected to a side of themain part 1 so that theair outlet 135 is located on a side of the blower and theair inlet 133 is defined in an end of thecase 11. The adjustingdevice 2 is connected to the end of thecase 11 and the first andsecond apertures air inlet 133. - While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims (8)
- A blower comprising:a main part (1) including a case unit (11), a motor (14) and a blade unit (15), the case unit (11) including an air inlet (133) and an air outlet (135);an adjusting device (2) connected to the air outlet (135) of the case unit (11) and including a fixed plate (21), a rotatable plate (22) which is rotatably connected to the fixed plate (21), the fixed plate (21) having two first apertures (214) and the rotatable plate (22) having two second apertures (223), the rotatable plate (22) being rotated to adjust a size of communication of the first and second apertures (214, 223).
- The blower as claimed in claim 1, wherein the fixed plate (21) includes a central hole (213) and a plurality of positioning holes (215), two stops (216) extend from a top of the fixed plate (21) and located beside the two first apertures (214).
- The blower as claimed in claim 1, wherein the rotatable plate (22) includes a pivot (221) on an underside thereof and the pivot (221) is rotatably inserted into the central hole (213), two handles (222) extend from a top of the rotatable plate (22), an extension (224) extends radially outward from a periphery of the rotatable plate (22 and a protrusion (225) extends from an underside of the rotatable plate (22).
- The blower as claimed in claim 1, wherein the case unit (11) includes a base (12) and a case (13), the motor (14) is securely received in the base (12) and includes an output shaft (142) which is connected to the blade unit (15), the case (13) includes a through hole (131).
- The blower as claimed in claim 4, wherein at least one heat dispensing hole (122) is defined through a wall of the base (12) so as to cool the motor (14).
- The blower as claimed in claim 4, wherein a cover plate (132) is connected to the through hole (131) of the case (13) and the air inlet (133) is defined through the cover plate (132), an inward and inclined guide surface (134) is defined around the air inlet (133), the cover plate (132) has a curved top surface which includes a higher central portion and a lower periphery, the case (13) includes the air outlet (135).
- The blower as claimed in claim 6, wherein the fixed plate (21) includes a plurality of positioning pins (211) extending from an underside thereof so as to fixedly connected to the top surface of the curved cover plate (132), a plurality of suction gaps (212) are defined between the fixed plate (21) and the cover plate (132).
- The blower as claimed in claim 1, wherein the air inlet (133) is defined in an end of the case (11) and the air outlet (135) is defined in a side of a top of the case (11), the adjusting device (2) is connected to the end of the case (11), the first and second apertures (214, 223) are located on the same end with the air inlet (133).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07118858A EP2050969A1 (en) | 2007-10-19 | 2007-10-19 | Guide device for blowers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07118858A EP2050969A1 (en) | 2007-10-19 | 2007-10-19 | Guide device for blowers |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2050969A1 true EP2050969A1 (en) | 2009-04-22 |
Family
ID=39228542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07118858A Withdrawn EP2050969A1 (en) | 2007-10-19 | 2007-10-19 | Guide device for blowers |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2050969A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103775368A (en) * | 2014-01-24 | 2014-05-07 | 云浮市益康生环保科技有限公司 | Air volume regulation mechanism |
US20170241443A1 (en) * | 2016-02-23 | 2017-08-24 | Yamabiko Corporation | Portable power working machine |
CN112412849A (en) * | 2020-10-29 | 2021-02-26 | 苏州首信电机有限公司 | Fan with adjustable air inlet and air outlet directions |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2050700A (en) * | 1935-05-23 | 1936-08-11 | B F Sturtevant Co | Centrifugal fan |
US2443263A (en) * | 1944-09-18 | 1948-06-15 | American Blower Corp | Fluid flow control apparatus |
US3781127A (en) * | 1972-06-14 | 1973-12-25 | Westinghouse Electric Corp | Centrifugal fan inlet and vane capacity control |
DE29906877U1 (en) * | 1999-04-09 | 1999-07-08 | Chang, Kwei-Tang, Panchiao, Taipeh | Fan device |
EP1416123A2 (en) * | 2002-10-29 | 2004-05-06 | Bayerische Motoren Werke Aktiengesellschaft | Vortex inlet vanes |
-
2007
- 2007-10-19 EP EP07118858A patent/EP2050969A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2050700A (en) * | 1935-05-23 | 1936-08-11 | B F Sturtevant Co | Centrifugal fan |
US2443263A (en) * | 1944-09-18 | 1948-06-15 | American Blower Corp | Fluid flow control apparatus |
US3781127A (en) * | 1972-06-14 | 1973-12-25 | Westinghouse Electric Corp | Centrifugal fan inlet and vane capacity control |
DE29906877U1 (en) * | 1999-04-09 | 1999-07-08 | Chang, Kwei-Tang, Panchiao, Taipeh | Fan device |
EP1416123A2 (en) * | 2002-10-29 | 2004-05-06 | Bayerische Motoren Werke Aktiengesellschaft | Vortex inlet vanes |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103775368A (en) * | 2014-01-24 | 2014-05-07 | 云浮市益康生环保科技有限公司 | Air volume regulation mechanism |
US20170241443A1 (en) * | 2016-02-23 | 2017-08-24 | Yamabiko Corporation | Portable power working machine |
EP3210462A1 (en) * | 2016-02-23 | 2017-08-30 | Yamabiko Corporation | Portable power working machine |
US10495115B2 (en) | 2016-02-23 | 2019-12-03 | Yamabiko Corporation | Portable power working machine |
CN112412849A (en) * | 2020-10-29 | 2021-02-26 | 苏州首信电机有限公司 | Fan with adjustable air inlet and air outlet directions |
CN112412849B (en) * | 2020-10-29 | 2022-04-22 | 苏州首信电机有限公司 | Fan with adjustable air inlet and air outlet directions |
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