CN203939782U - A kind of blower fan protective cover of capable of adjusting air inlet amount - Google Patents
A kind of blower fan protective cover of capable of adjusting air inlet amount Download PDFInfo
- Publication number
- CN203939782U CN203939782U CN201420344646.7U CN201420344646U CN203939782U CN 203939782 U CN203939782 U CN 203939782U CN 201420344646 U CN201420344646 U CN 201420344646U CN 203939782 U CN203939782 U CN 203939782U
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- Prior art keywords
- movable disk
- ring
- fixed
- fan
- grooving
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Abstract
A kind of blower fan protective cover of capable of adjusting air inlet amount, comprise air intake cylinder, the exhaust outlet side of air intake cylinder has been bolted to connection fixed tray, fixed tray upper sleeve has cross section to be the movable disk of ' Contraband ' font, the inside bottom surface of movable disk movable disk leans against on the front-end face of fixed tray, and fixed tray and movable disk all form fan-shaped vent hole; Described movable disk upper sleeve has back-up ring, back-up ring is fixed on air intake cylinder, on the sidewall of back-up ring, form the grooving that runs through sidewall, on the outer side wall of the back-up ring of arc grooving both sides, be fixed with respectively pillar, between pillar, be fixed with connecting plate, on connecting plate, form arc-shaped slot, on the outer side wall of described movable disk, be fixed with shifting block, the grooving that back-up ring is exposed in the outer end of shifting block is bolted with fastening screw trip bolt, and fastening screw trip bolt sleeve is in the arc-shaped slot of connecting plate.It can regulate the size of air inlet, thereby can change the air output of blower fan, can stop some middle-size and small-size particles to enter into blower fan inside simultaneously.
Description
Technical field:
The utility model relates to the technical field of blower fan, more specifically to a kind of blower fan protective cover of capable of adjusting air inlet amount.
Background technique:
Blower fan is a kind of ventilation and heat equipment common during people live or work at present, and safty shield is generally installed on existing blower fan, and safty shield can stop large particle foreign material to enter blower fan inside.But existing safty shield is fixed, can not regulate, cannot stop some middle-size and small-size particles to enter into blower fan inside.Also cannot regulate the air output of air inlet simultaneously.
Model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and a kind of blower fan protective cover of capable of adjusting air inlet amount is provided, and can regulate the size of air inlet, when changing air output, can stop some middle-size and small-size particles to enter into blower fan inside.
Technology solution of the present utility model is as follows:
A kind of blower fan protective cover of capable of adjusting air inlet amount, comprise air intake cylinder, the exhaust outlet side of air intake cylinder has been bolted to connection fixed tray, fixed tray upper sleeve has cross section to be the movable disk of ' Contraband ' font, the inside bottom surface of movable disk movable disk leans against on the front-end face of fixed tray, and fixed tray and movable disk all form fan-shaped vent hole; Described movable disk upper sleeve has back-up ring, back-up ring is fixed on air intake cylinder, on the sidewall of back-up ring, form the grooving that runs through sidewall, on the outer side wall of the back-up ring of arc grooving both sides, be fixed with respectively pillar, between pillar, be fixed with connecting plate, on connecting plate, form arc-shaped slot, on the outer side wall of described movable disk, be fixed with shifting block, the grooving that back-up ring is exposed in the outer end of shifting block is bolted with fastening screw trip bolt, and fastening screw trip bolt sleeve is in the arc-shaped slot of connecting plate.
Described vent hole around the center of fixed tray or the center annular of movable disk be evenly distributed in fixed tray and movable disk, the fan-shaped angle of described vent hole equals the angle between adjacent two vent hole sidewalls.
Grooving on described back-up ring and be all fan-shaped through the shape of the shifting block of grooving, the fan-shaped angle of back-up ring equals the fan-shaped angle of the vent hole of twice, and the fan-shaped angle of shifting block equals the fan-shaped angle of vent hole, and the top of shifting block forms driving lever.
The beneficial effects of the utility model are:
1, it can be used as common blower fan safty shield use, stops large particle foreign material to enter blower fan inside and protection personnel's safety.
2, it can regulate the size of air inlet, thereby can change the air output of blower fan, can stop some middle-size and small-size particles to enter into blower fan inside simultaneously, and can be used in combination and prevent burning things which may cause a fire disaster diffusion with fire-closing valve.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation in the utility model front;
Fig. 3 is the structural representation at the utility model back side;
Fig. 4 is sectional structure schematic diagram of the present utility model;
Structural representation when Fig. 5 is the utility model closure;
In figure: 1, air intake cylinder; 2, fixed tray; 3, movable disk; 4, back-up ring; 5, pillar; 6, connecting plate; 7, fastening screw trip bolt; 8, shifting block; 9, bolt; 41, grooving; 61, arc-shaped slot; 81, driving lever; A, vent hole.
Embodiment:
Embodiment: see shown in Fig. 1 to 5, a kind of blower fan protective cover of capable of adjusting air inlet amount, comprise air intake cylinder 1, the exhaust outlet side of air intake cylinder 1 is fixedly connected with fixed tray 2 by bolt 9, fixed tray 2 upper sleeves have cross section to be the movable disk 3 of ' Contraband ' font, the inside bottom surface of movable disk 3 movable disk 3 leans against on the front-end face of fixed tray 2, and fixed tray 2 and movable disk 3 all form fan-shaped vent hole a; Described movable disk 3 upper sleeves have back-up ring 4, back-up ring 4 is fixed on air intake cylinder 1, on the sidewall of back-up ring 4, form the grooving 41 that runs through sidewall, on the outer side wall of the back-up ring 4 of arc grooving 41 both sides, be fixed with respectively pillar 5, between pillar 5, be fixed with connecting plate 6, on connecting plate 6, form arc-shaped slot 61, on the outer side wall of described movable disk 3, be fixed with shifting block 8, the grooving 41 that back-up ring 4 is exposed in the outer end of shifting block 8 is bolted with fastening screw trip bolt 7, and fastening screw trip bolt 7 sleeves are in the arc-shaped slot 61 of connecting plate 6.
Described vent hole a around the center of fixed tray 2 or the center annular of movable disk 3 be evenly distributed in fixed tray 2 and movable disk 3, the fan-shaped angle of described vent hole a equals the angle between adjacent two vent hole a sidewalls.
Grooving 41 on described back-up ring 4 and be all fan-shaped through the shape of the shifting block 8 of grooving 41, the fan-shaped angle of back-up ring 4 equals the fan-shaped angle of the vent hole a of twice, and the fan-shaped angle of shifting block 8 equals the fan-shaped angle of vent hole a, and the top of shifting block 8 forms driving lever 81.
Working principle: the structure under the utility model ventilation state as shown in Figure 1, its fixed tray 2 coincides with the vent hole a in movable disk 3, its ventilation effect is best, and stir shifting block 8, can make movable disk 3 rotate, can make vent hole a on fixed tray 2 reduce gradually with the part that overlaps of vent hole a in movable disk 3, vent hole a thereby air output just diminishes on fixed tray 2 with the vent hole a in movable disk 3 without the part that overlaps, in closed state, as shown in Figure 5.
Claims (3)
1. the blower fan protective cover of a capable of adjusting air inlet amount, comprise air intake cylinder (1), it is characterized in that: the exhaust outlet side of air intake cylinder (1) is fixedly connected with fixed tray (2) by bolt (9), fixed tray (2) upper sleeve has cross section to be the movable disk (3) of ' Contraband ' font, the inside bottom surface of movable disk (3) movable disk (3) leans against on the front-end face of fixed tray (2), and fixed tray (2) and movable disk (3) all form fan-shaped vent hole (a); described movable disk (3) upper sleeve has back-up ring (4), back-up ring (4) is fixed on air intake cylinder (1), on the sidewall of back-up ring (4), form the grooving (41) that runs through sidewall, on the outer side wall of the back-up ring (4) of arc grooving (41) both sides, be fixed with respectively pillar (5), between pillar (5), be fixed with connecting plate (6), on connecting plate (6), form arc-shaped slot (61), on the outer side wall of described movable disk (3), be fixed with shifting block (8), the grooving (41) that back-up ring (4) are exposed in the outer end of shifting block (8) is bolted with fastening screw trip bolt (7), fastening screw trip bolt (7) sleeve is in the arc-shaped slot (61) of connecting plate (6).
2. the blower fan protective cover of a kind of capable of adjusting air inlet amount according to claim 1, it is characterized in that: described vent hole (a) is around the center of fixed tray (2) or the center annular of movable disk (3) is evenly distributed on fixed tray (2) and movable disk (3) is upper, and the fan-shaped angle of described vent hole (a) equals the angle between adjacent two vent holes (a) sidewall.
3. the blower fan protective cover of a kind of capable of adjusting air inlet amount according to claim 1, it is characterized in that: the grooving (41) on described back-up ring (4) and be all fan-shaped through the shape of the shifting block (8) of grooving (41), the fan-shaped angle of back-up ring (4) equals the fan-shaped angle of the vent hole (a) of twice, the fan-shaped angle of shifting block (8) equals the fan-shaped angle of vent hole (a), and the top of shifting block (8) forms driving lever (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344646.7U CN203939782U (en) | 2014-06-25 | 2014-06-25 | A kind of blower fan protective cover of capable of adjusting air inlet amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420344646.7U CN203939782U (en) | 2014-06-25 | 2014-06-25 | A kind of blower fan protective cover of capable of adjusting air inlet amount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939782U true CN203939782U (en) | 2014-11-12 |
Family
ID=51859098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420344646.7U Expired - Fee Related CN203939782U (en) | 2014-06-25 | 2014-06-25 | A kind of blower fan protective cover of capable of adjusting air inlet amount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939782U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330179A (en) * | 2020-03-08 | 2020-06-26 | 邢雪芳 | Infectious department epidemic prevention mask with adjustable respirator angle |
| CN112728773A (en) * | 2020-12-31 | 2021-04-30 | 广东超人节能厨卫电器有限公司 | Fan subassembly and water heater |
| CN113521539A (en) * | 2020-04-16 | 2021-10-22 | 汪嵘 | Portable plasma wound therapeutic apparatus and use method thereof |
-
2014
- 2014-06-25 CN CN201420344646.7U patent/CN203939782U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330179A (en) * | 2020-03-08 | 2020-06-26 | 邢雪芳 | Infectious department epidemic prevention mask with adjustable respirator angle |
| CN113521539A (en) * | 2020-04-16 | 2021-10-22 | 汪嵘 | Portable plasma wound therapeutic apparatus and use method thereof |
| CN112728773A (en) * | 2020-12-31 | 2021-04-30 | 广东超人节能厨卫电器有限公司 | Fan subassembly and water heater |
| CN112728773B (en) * | 2020-12-31 | 2022-05-06 | 广东超人节能厨卫电器有限公司 | Fan subassembly and water heater |
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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: 20141112 Termination date: 20170625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |