CN201851407U - Louver bracket on air outlet of negative pressure fan - Google Patents
Louver bracket on air outlet of negative pressure fan Download PDFInfo
- Publication number
- CN201851407U CN201851407U CN2010205468000U CN201020546800U CN201851407U CN 201851407 U CN201851407 U CN 201851407U CN 2010205468000 U CN2010205468000 U CN 2010205468000U CN 201020546800 U CN201020546800 U CN 201020546800U CN 201851407 U CN201851407 U CN 201851407U
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- China
- Prior art keywords
- drive link
- sidewall
- chute
- connecting rod
- negative
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a louver bracket on the air outlet of a negative pressure fan. The louver bracket comprises a fan body and a connection rod mounted on the sidewall of the fan body, wherein the connection rod is movably connected with impellers; the bottom end of the connection rod is fixedly connected with a connection arm; a transmission rod is inserted between the connection rod and the connection arm; the transmission rod is located on the inner surface of the sidewall after penetrating the sidewall, and is movably connected with the inner surface of the sidewall through screws. The louver bracket on the air outlet of the negative pressure fan can prolong the service life of the motor, reduce the power consumption, lower the operation cost, but correspondingly increase the air output.
Description
Technical field
The utility model relates to a kind of negative-pressure air fan exhaust outlet blinds support.
Background technique
At present, the general on the market negative-pressure air fan that is using, comprise blower fan body and the supporting frame that is installed on the blower fan body, be installed with fan blade on the supporting frame, be movably installed with fan blade on the fan blade, blower fan body bottom is equipped with motor, is connected by v belt between the motor Vee pulley V on the motor and the fan blade.During use, all be, drive fan blade and rotate, thereby make the fan blade rotation, open by reaching certain wind speed drive exhaust outlet blinds by the motor drives belt movement.Need to consume very big electric energy like this and drive blinds and open, power consumption is bigger, influences motor working life and the also corresponding increase of operating cost.
The model utility content
The purpose of this utility model is to provide a kind of negative-pressure air fan exhaust outlet blinds support, and the utility model has increased the motor life-span, and power consumption reduces, and operating cost also reduces, but the corresponding increase of air output.
In order to achieve the above object, the technical solution of the utility model is:
A kind of negative-pressure air fan exhaust outlet blinds support comprises the blower fan body and is installed in connecting rod on the sidewall of blower fan body, connecting rod and fan blade flexible connection; Connecting rod bottom and link arm are connected, and are fitted with a drive link between connecting rod and the link arm, and drive link is positioned at the sidewall internal face after passing sidewall, and flexibly connect by screw and sidewall internal face.
Offer vertical slot on the described blower fan body, the top of vertical slot is extended with a transverse groove to a side, and an end of drive link just can be stretched out outside vertical slot or the transverse groove.
Described drive link is made up of first drive link and second drive link, and offers first chute and second chute respectively on first drive link and second drive link; Flexibly connect by 2 screws between first chute and second chute.
The beneficial effects of the utility model are: the purpose of this utility model is not only to make negative-pressure air fan open fan blade by wind-force, can also open fan blade by manual pulling drive link, can alleviate the load of motor by the manual unlocking fan blade, increase the motor life-span, power consumption reduces, operating cost also reduces, but the corresponding increase of air output.
Description of drawings
Fig. 1 is the utility model negative-pressure air fan overall structure schematic representation;
Fig. 2 is the right elevation of Fig. 1;
Fig. 3 is the enlarged diagram of the utility model negative-pressure air fan exhaust outlet blinds support.
Embodiment
As shown in Figure 1, 2, 3, a kind of negative-pressure air fan exhaust outlet blinds support of the utility model indication comprises blower fan body 1 and is installed in connecting rod 2 on the sidewall 7 of blower fan body 1 that connecting rod 2 flexibly connects with fan blade 3; Connecting rod 2 bottoms and link arm 4 are connected, and are fitted with a drive link 5 between connecting rod 2 and the link arm 4, and drive link 5 is positioned at sidewall 7 internal faces after passing sidewall 7, and flexibly connect by screw 6 and sidewall 7 internal faces.Offer vertical slot 8 on the described blower fan body 1, the top of vertical slot 8 is extended with a transverse groove 9 to a side, and an end of drive link 5 just can be stretched out outside vertical slot 8 or the transverse groove 9.Described drive link 5 is made up of first drive link 51 and second drive link 52, and offers first chute 53 and second chute 54 respectively on first drive link 51 and second drive link 52; Flexibly connect by 2 screws 55 between first chute 53 and second chute 54.During use, when needs manually strut fan blade 3, only need hold the drive link 5 that is positioned at outside the vertical slot 8, pass through lever principle, balance pivot is a screw 6 just, and pulling drive link 5 is located in the transverse groove 9, at this moment, the other end of drive link 5, just the drive link between connecting rod 2 and link arm 45 just descends, because the effect of link arm 4, pulling connecting rod 2 also descends, and drives fan blade 3 and opens.When needs are closed fan blade 3, otherwise, the drive link that will be positioned at transverse groove 9 is drawn in vertical slot 8 bottoms for 5 times, pass through lever principle, the other end of drive link 5, just the drive link between connecting rod 2 and link arm 45 just rises, because the effect of link arm 4, pulling connecting rod 2 rises, and drives fan blade 3 and closes.When negative-pressure air fan does not use, when perhaps needing to carry, to stretch out the vertical slot 8 second outer drive links 52 pushes away to first drive link, 51 directions, this moment is by the effect of first chute 53 and second chute 54 and 2 screws 55, make second drive link 52 be positioned at blower fan body 1 inside, do not influence carrying and outward appearance.When reusing, only need just can be pulled outwardly and stretch out second drive link 52, can normally use so again by the effect of first chute 53 and second chute 54 and 2 screws 55 by outwards spurring second drive link 52.The support of present embodiment not only can make negative-pressure air fan open fan blade by wind-force, can also open fan blade by manual pulling drive link, can alleviate the load of motor by the manual unlocking fan blade, increase the motor life-span, power consumption reduces, operating cost also reduces, but the corresponding increase of air output.
Claims (3)
1. negative-pressure air fan exhaust outlet blinds support comprises blower fan body (1) and is installed in connecting rod (2) on the sidewall (7) of blower fan body (1) that connecting rod (2) flexibly connects with fan blade (3); It is characterized in that: connecting rod (2) bottom and link arm (4) are connected, be fitted with a drive link (5) between connecting rod (2) and the link arm (4), drive link (5) is positioned at sidewall (7) internal face after passing sidewall (7), and flexibly connects by screw (6) and sidewall (7) internal face.
2. negative-pressure air fan belt protection device as claimed in claim 1; it is characterized in that: offer vertical slot (8) on the described blower fan body (1); the top of vertical slot (8) is extended with a transverse groove (9) to a side, and an end of drive link (5) just can be stretched out outside vertical slot (8) or the transverse groove (9).
3. negative-pressure air fan belt protection device as claimed in claim 1, it is characterized in that: described drive link (5) is made up of first drive link (51) and second drive link (52), and offers first chute (53) and second chute (54) respectively on first drive link (51) and second drive link (52); Flexibly connect by 2 screws (55) between first chute (53) and second chute (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205468000U CN201851407U (en) | 2010-09-26 | 2010-09-26 | Louver bracket on air outlet of negative pressure fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205468000U CN201851407U (en) | 2010-09-26 | 2010-09-26 | Louver bracket on air outlet of negative pressure fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851407U true CN201851407U (en) | 2011-06-01 |
Family
ID=44093800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205468000U Expired - Fee Related CN201851407U (en) | 2010-09-26 | 2010-09-26 | Louver bracket on air outlet of negative pressure fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488080A (en) * | 2018-03-20 | 2018-09-04 | 南通悦能节能净化设备有限公司 | A kind of negative-pressure air fan |
-
2010
- 2010-09-26 CN CN2010205468000U patent/CN201851407U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488080A (en) * | 2018-03-20 | 2018-09-04 | 南通悦能节能净化设备有限公司 | A kind of negative-pressure air fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20120926 |