CN203500084U - Exhaust fan protecting cover opening and closing device - Google Patents
Exhaust fan protecting cover opening and closing device Download PDFInfo
- Publication number
- CN203500084U CN203500084U CN201320486224.9U CN201320486224U CN203500084U CN 203500084 U CN203500084 U CN 203500084U CN 201320486224 U CN201320486224 U CN 201320486224U CN 203500084 U CN203500084 U CN 203500084U
- Authority
- CN
- China
- Prior art keywords
- protecting cover
- exhaust fan
- stay cord
- electromagnet
- extension spring
- 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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Abstract
The utility model discloses an exhaust fan protecting cover opening and closing device which comprises an exhaust fan (1), a protecting cover (2), an extension spring (3), a connecting rod (4), a connecting block (5) and a manual pulling rope (7). The exhaust fan (1) comprises a fan outer frame (11), a spring seat (12) and an inner cover (13). The exhaust fan protecting cover opening and closing device is characterized by also comprising a pulling rope (6) and an electromagnet (8), wherein an upper shackle of the extension spring (3) is hung in a hole of a spring seat (12); the connecting block (5) is respectively connected with the extension spring (3), the connecting rod (4), the pulling rope (6) and the manual pulling rope (7); the electromagnet (8) is arranged on the right lower corner of the exhaust fan (1); the electromagnet (8) is connected with the connecting block (5) by the pulling rope (6). The exhaust fan protecting cover opening and closing device has the advantages of simple structure, good protection performance, low cost and long service life.
Description
Technical field
The utility model relates to fan, specifically ventilating fan protecting cover open/close device.
Background technique
The protecting cover of existing ventilating fan is to adopt the manual stay cord of manual operation by contiguous block, connecting rod, to open or close protecting cover successively again, there are the following problems for this mode: 1, when ventilating fan just in the running, suddenly have a power failure, at this moment, may forget and close ventilating fan due to operator's carelessness; 2, manually stay cord adopts nylon thread to make mostly, and the time is used of a specified duration, may easily be torn because of rub breakage and corrosion.
Model utility content
The purpose of this utility model be just to provide a kind of simple in structure, barrier propterty good, cost is low, the ventilating fan protecting cover open/close device of long service life.
For achieving the above object, the utility model comprises ventilating fan, protecting cover, extension spring, connecting rod, contiguous block and manual stay cord, described ventilating fan comprises fan housing, spring seat and inner cap, also comprise stay cord and electromagnet, the upper shackle of described extension spring is hung in the hole of spring seat, described contiguous block is connected with extension spring, connecting rod, stay cord and manual stay cord respectively, and described electromagnet is loaded on the lower right corner of ventilating fan, and described electromagnet is connected with contiguous block by stay cord.
The utility model is owing to having adopted stay cord and electromagnet, and this structure, when ventilating fan is switched on, the electromagnet adhesive of simultaneously switching on, now, by stay cord, pull down the piece that is dynamically connected, then, contiguous block drivening rod is opened protecting cover, when ventilating fan power-off, electromagnet power-off is simultaneously thrown off, now, rely on extension spring can upwards pull contiguous block, contiguous block drivening rod is closed protecting cover; In addition, in cold situation, can open protecting cover with manual stay cord, to ventilate.The utility model is simple in structure, and barrier propterty is good, and cost is low, long service life.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Referring to Fig. 1, the utility model comprises ventilating fan 1, protecting cover 2, extension spring 3, connecting rod 4, contiguous block 5 and manual stay cord 7, described ventilating fan 1 comprises fan housing 11, spring seat 12 and inner cap 13, also comprise stay cord 6 and electromagnet 8, the upper shackle of described extension spring 3 is hung in the hole of spring seat 12, described contiguous block 5 is connected with extension spring 3, connecting rod 4, stay cord 6 and manual stay cord 7 respectively, described electromagnet 8 is loaded on the lower right corner of ventilating fan 1, and described electromagnet 8 is connected with contiguous block 5 by stay cord 6.
Claims (1)
1. ventilating fan protecting cover open/close device, comprise ventilating fan (1), protecting cover (2), extension spring (3), connecting rod (4), contiguous block (5) and manually stay cord (7), described ventilating fan (1) comprises fan housing (11), spring seat (12) and inner cap (13), it is characterized in that: also comprise stay cord (6) and electromagnet (8), the upper shackle of described extension spring (3) is hung in the hole of spring seat (12), described contiguous block (5) respectively with extension spring (3), connecting rod (4), stay cord (6) and manually stay cord (7) connect, described electromagnet (8) is loaded on the lower right corner of ventilating fan (1), described electromagnet (8) is connected with contiguous block (5) by stay cord (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486224.9U CN203500084U (en) | 2013-08-11 | 2013-08-11 | Exhaust fan protecting cover opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486224.9U CN203500084U (en) | 2013-08-11 | 2013-08-11 | Exhaust fan protecting cover opening and closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500084U true CN203500084U (en) | 2014-03-26 |
Family
ID=50331067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486224.9U Expired - Fee Related CN203500084U (en) | 2013-08-11 | 2013-08-11 | Exhaust fan protecting cover opening and closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500084U (en) |
-
2013
- 2013-08-11 CN CN201320486224.9U patent/CN203500084U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20140811 |
|
| EXPY | Termination of patent right or utility model |