CN203548367U - Impurity prevention fan - Google Patents
Impurity prevention fan Download PDFInfo
- Publication number
- CN203548367U CN203548367U CN201320743124.XU CN201320743124U CN203548367U CN 203548367 U CN203548367 U CN 203548367U CN 201320743124 U CN201320743124 U CN 201320743124U CN 203548367 U CN203548367 U CN 203548367U
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- CN
- China
- Prior art keywords
- fan
- air intake
- impurity
- air inlet
- inlet end
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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.)
- Expired - Fee Related
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Abstract
The utility model discloses an impurity prevention fan which comprises a shell, the rear end of the shell is an air outlet end, the front end of the shell is an air inlet end, and a fan and a motor are arranged in the shell. A protective net is arranged at the air inlet end of the shell. The impurity prevention fan further comprises a closing plate. A long hole is formed in the left side of the air inlet end and used for inserting the closing plate. A long groove is formed in the inner wall of the right side of the air inlet end and used for containing the closing plate. A concave part is formed in the bottom of the air inlet end and used for communicating the long groove and the long hole. The closing plate can move left and right along the concave part. The protective net is arranged, so that it is avoided that because impurities enter inside the fan along with wind when air is sucked out at the air inlet end, fan blades or the motor is damaged, the impurity prevention effect is better, which helps the air to be sucked out, and air exchange efficiency is improved. The closing plate is arranged and can be inserted into the fan when the fan is not in use, dust and other impurities are prevented from entering a room, and furthermore insects can be prevented from entering the room through the fan.
Description
Technical field
The utility model relates to mechanical engineering field, especially relates to a kind of anti-impurity blower fan.
Background technique
Existing blower fan generally arranges venetian blind at air intake, and this venetian blind plays the function that necessarily stops impurity, but its blade area is large, has reduced suction air volume, has reduced the working efficiency of blower fan; At present for the blower fan ventilating, be used for factory, and factory's internal contamination is large, impurity is many, space between fan blade is large, anti-impurity weak effect, the impurity in room easily enters in blower fan through blade, and then damages motor and fan, and venetian blind in use easily damages because wind-force is excessive, change difficulty, and increased maintenance cost.
Model utility content
The utility model, in order to overcome the deficiencies in the prior art, provides a kind of drafting efficiency high, non-damageable anti-impurity blower fan.
To achieve these goals, the utility model is by the following technical solutions: a kind of anti-impurity blower fan, comprise housing, described housing rear end is outlet air end, housing front end is air intake, in described housing, be provided with fan and motor, this motor has the rotating shaft that connects fan, the air intake of described housing is provided with catch net, also comprise shut, the left side opening of described air intake is useful on the slotted hole that inserts shut, the right side inwall of described air intake is provided with for holding the elongated slot of shut, described air intake bottom has the recess that is communicated with elongated slot and slotted hole, this shut can move left and right along this recess.
As preferably, described catch net fixes by the installing ring with screw and air intake opening's edge.
In sum, the utlity model has following advantage: this catch net is set and can avoids air intake when sucking-off gas, there is impurity to enter with the wind blower fan inside, cause fan blade or motor to damage, the void ratio venetian blind of this catch net little, anti-impurity better effects if, simultaneously also large than venetian blind of vent area, be conducive to the sucking-off of gas, improved scavenging efficiency; This shut is set, when not using blower fan, can inserts shut, avoid external dust or etc. impurity enter indoorly, also can avoid insect to enter by blower fan indoor, simple in structure, easy to operate, and mounting point is accurate, installation rate is fast.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make those skilled in the art person better understand the utility model scheme, below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is carried out to clear, complete description.
As shown in Figure 1, a kind of anti-impurity blower fan, comprises housing 1, described housing 1 rear end is outlet air end 11, and housing 1 front end is air intake 12, in described housing 1, is provided with fan 2 and motor, this motor has the rotating shaft that connects fan 2, and the air intake 12 of described housing 1 is provided with catch net 5; This catch net is set can avoid air intake when sucking-off gas; there is impurity to enter with the wind blower fan inside; cause fan blade or motor to damage; the void ratio venetian blind of this catch net little; anti-impurity better effects if, simultaneously also large, also not fragile than venetian blind of vent area; be conducive to the sucking-off of gas, improved scavenging efficiency.
In order to make installing/dismounting convenient, cleaning is more prone to, and described catch net 5 fixes by the installing ring with screw and air intake 12 opening's edges.
Concrete, also comprising shut 6, the left side opening of described air intake 12 is useful on the slotted hole that inserts shut 6; This shut is set, installs firmly, not fragile, when not using blower fan, can insert shut, avoid external dust or etc. impurity enter indoorly, also can avoid insect to enter by blower fan indoor, the right side inwall of described air intake 12 is provided with for holding the elongated slot 7 of shut 6, described air intake 12 bottoms have the recess 9 that is communicated with elongated slot 7 and slotted hole 8, this shut 6 can move left and right along this recess 9, and this arranges simple in structure, easy to operate, and mounting point is accurate, installation rate is fast.
Obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all should belong to the scope of the utility model protection.
Claims (2)
1. an anti-impurity blower fan, comprise housing (1), described housing (1) rear end is outlet air end (11), housing (1) front end is air intake (12), in described housing (1), be provided with fan (2) and motor, this motor has the rotating shaft of connection fan (2), it is characterized in that: the air intake (12) of described housing (1) is provided with catch net (5), also comprise shut (6), the left side opening of described air intake (12) is useful on the slotted hole that inserts shut (6), the right side inwall of described air intake (12) is provided with the elongated slot (7) for holding shut (6), described air intake (12) bottom has the recess (9) that is communicated with elongated slot (7) and slotted hole (8), this shut (6) can move left and right along this recess (9).
2. anti-impurity blower fan according to claim 1, is characterized in that: described catch net (5) fixes by the installing ring with screw and air intake (12) opening's edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743124.XU CN203548367U (en) | 2013-11-14 | 2013-11-14 | Impurity prevention fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743124.XU CN203548367U (en) | 2013-11-14 | 2013-11-14 | Impurity prevention fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548367U true CN203548367U (en) | 2014-04-16 |
Family
ID=50466491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743124.XU Expired - Fee Related CN203548367U (en) | 2013-11-14 | 2013-11-14 | Impurity prevention fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351996A (en) * | 2015-12-10 | 2016-02-24 | 浙江金美太电器有限公司 | Smoke exhaust ventilator |
-
2013
- 2013-11-14 CN CN201320743124.XU patent/CN203548367U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351996A (en) * | 2015-12-10 | 2016-02-24 | 浙江金美太电器有限公司 | Smoke exhaust ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |