CN111981618A - But internal recycle's roof fan - Google Patents
But internal recycle's roof fan Download PDFInfo
- Publication number
- CN111981618A CN111981618A CN202010836959.4A CN202010836959A CN111981618A CN 111981618 A CN111981618 A CN 111981618A CN 202010836959 A CN202010836959 A CN 202010836959A CN 111981618 A CN111981618 A CN 111981618A
- Authority
- CN
- China
- Prior art keywords
- air guide
- air
- plate
- fixed
- guide pipe
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/02—Roof ventilation
- F24F7/025—Roof ventilation with forced air circulation by means of a built-in ventilator
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a roof fan capable of realizing internal circulation, which comprises a rectangular mounting base plate, wherein a cylindrical air duct is formed on the mounting base plate, a fan is fixed in the air duct, an air cap is arranged right above the air duct, vertical air ducts are fixedly spliced at four corners of the mounting base plate, an inclined branch pipe is formed by bending the upper end of the air duct, the upper end of the inclined branch pipe is fixedly spliced on the air duct on the upper side of the fan, the lower end of the air duct is positioned on the lower side of the mounting base plate, and an air inlet hole is formed in the outer wall of the air duct on the lower side of the mounting base plate; the air guide pipe is internally inserted with a vertical support column, the upper end of the support column penetrates through the inclined branch pipe and is fixed on the blast cap, the lower end of the support column extends out of the air guide pipe and is fixed on a rectangular frame-shaped linkage plate, a valve plate is fixed on the support column in an inserting and sleeving manner, and the outer ring of the valve plate abuts against the inner wall of the air guide pipe on the upper side of the air inlet hole.
Description
Technical Field
The invention relates to the technical field of roof fans, in particular to a roof fan capable of internal circulation.
Background
At present, the roof fan is widely applied to the field of industrial ventilation, and various roof fans can be arranged in a common factory building to realize ventilation of the factory building. Generally, in order to protect the fan from being corroded by rainwater and prevent rainwater from leaking into a factory building, an air cap (rain cap) is arranged above an air duct on the outer side of the fan, and air outside the factory building enters the factory building through a gap between the air cap and the air duct and then enters the factory building from the upper side of the air duct; in the south, however, the rainy season exists, rain always occurs during the rainy season, air is very humid, humid air easily enters the plant from a roof fan at the top of the plant, so that the plant is more humid, and the humid air easily causes equipment or products in a plant workshop to rust; and then roof fan need rectify and change, when need can ventilate during the plum rain season, can prevent that the factory building external air from getting into in the factory building.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an internally circulating roof fan, which can be adjusted, can perform internal circulation ventilation in plum rain seasons and can perform external circulation ventilation in other seasons.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a roof fan capable of internal circulation comprises a rectangular mounting base plate, wherein a cylindrical air duct is formed on the mounting base plate, a fan is fixed in the air duct, an air cap is arranged right above the air duct, vertical air ducts are fixedly spliced at four corners of the mounting base plate, an inclined branch pipe is bent and formed at the upper end of the air duct, the upper end of the inclined branch pipe is fixedly spliced on the air duct on the upper side of the fan, the lower end of the air duct is positioned on the lower side of the mounting base plate, and an air inlet hole is formed in the outer wall of the air duct on the lower side of the mounting base plate; a vertical support column is inserted in the air guide pipe, the upper end of the support column penetrates through the inclined branch pipe and is fixed on the blast cap, the lower end of the support column extends out of the air guide pipe and is fixed on a rectangular frame-shaped linkage plate, a valve plate is fixed on the support column in an inserting and sleeving manner, and the outer ring of the valve plate abuts against the inner wall of the air guide pipe on the upper side of the air inlet;
a plurality of T-shaped guide rods are inserted into the linkage plate, the upper ends of the guide rods are fixed on the mounting base plate, support lugs are formed on the outer side wall of the linkage plate, vertical screw rods are screwed on the support lugs, and linear handles are fixed at the upper ends of the screw rods through the mounting base plate; the lower end of the screw rod is abutted against the limiting plate, the two ends of the limiting plate are fixedly provided with the stand columns, and the upper ends of the stand columns are fixedly arranged on the mounting bottom plate.
Preferably, the air inlet hole on the air guide pipe is positioned on the outer wall of one side, away from the air guide cylinder, of the air guide pipe, and an air inlet pipe communicated with the air inlet hole is fixed on the outer wall of the air guide pipe.
Preferably, the distance from the valve plate to the air inlet hole on the support column is smaller than the distance from the upper end face of the air guide cylinder to the inner wall of the blast cap right above the air guide cylinder.
Preferably, an annular sealing ring is fixed on the upper end face of the air guide cylinder.
Preferably, mounting holes are formed at four corners of the mounting bottom plate and distributed on the outer side of the air guide pipe.
Preferably, the central axis of the support column coincides with the central axis of the air guide pipe, and the diameter of the support column is smaller than that of the inner wall of the air guide pipe.
Preferably, the length of each side frame of the linkage plate is equal, and the length of the inner side wall of the linkage plate is larger than the diameter of the inner wall of the air duct.
Preferably, the air guide pipes are uniformly distributed on the mounting bottom plate in an annular shape around the central axis of the air guide cylinder.
The invention has the beneficial effects that: the roof fan that it adopted can adjust, can carry out the inner circulation ventilation in plum rain season, and outer circulation ventilation can be carried out in other seasons.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic top view of the present invention;
fig. 4 is a schematic sectional view at a-a in fig. 3.
In the figure: 1. mounting a bottom plate; 11. an air duct; 12. mounting holes; 2. a hood; 3, a fan; 4. an air guide pipe; 41. an oblique branch pipe; 42. an air inlet hole; 5. a support pillar; 6. a valve plate; 7. a linkage plate; 8. a guide bar; 9. a screw; 10. a handle; 20. a limiting sleeve; 30. a limiting plate; 40. a column; 50. an air inlet pipe; 60. and (5) sealing rings.
Detailed Description
Example (b): as shown in fig. 1 to 4, the roof fan capable of internal circulation includes a rectangular installation base plate 1, a cylindrical air duct 11 is formed on the installation base plate 1, a fan 3 is fixed in the air duct 11, an air cap 2 is arranged right above the air duct 11, vertical air ducts 4 are fixed at four corners of the installation base plate 1 in an inserted manner, inclined branch pipes 41 are formed at the upper ends of the air ducts 4 in a bent manner, the upper ends of the inclined branch pipes 41 are fixed on the air duct 11 at the upper side of the fan 3 in an inserted manner, the lower ends of the air ducts 4 are located at the lower side of the installation base plate 1, and air inlet holes 42 are formed on the outer walls of the air ducts 4 at the lower side of the; a vertical support column 5 is inserted into the air guide pipe 4, the upper end of the support column 5 penetrates through an inclined branch pipe 41 and is fixed on the blast cap 2, the lower end of the support column 5 extends out of the air guide pipe 4 and is fixed on a rectangular frame-shaped linkage plate 7, a valve plate 6 is fixed on the support column 5 in an inserting and sleeving manner, and the outer ring of the valve plate 6 abuts against the inner wall of the air guide pipe 4 on the upper side of the air inlet 42;
a plurality of T-shaped guide rods 8 are inserted into the linkage plate 7, the upper ends of the guide rods 8 are fixed on the mounting base plate 1, support lugs 71 are formed on the outer side wall of the linkage plate 7, vertical screw rods 9 are screwed on the support lugs 71, and linear handles 10 are fixed at the upper ends of the screw rods 9 after penetrating through the mounting base plate 1; the lower end of the screw 9 abuts against the limiting plate 30, the two ends of the limiting plate 30 are fixed with the upright posts 40, and the upper ends of the upright posts 40 are fixed on the mounting bottom plate 1.
The air inlet hole 42 on the air guide pipe 4 is positioned on the outer wall of the air guide pipe 4 on the side departing from the air guide cylinder 11, and an air inlet pipe 50 communicated with the air inlet hole 42 is fixed on the outer wall of the air guide pipe 4.
The distance from the valve plate 6 on the support column 5 to the air inlet 42 is less than the distance from the upper end surface of the air duct 11 to the inner wall of the blast cap 2 right above the air duct 11.
An annular sealing ring 60 is fixed on the upper end surface of the air guide cylinder 11.
The central axis of the support column 5 coincides with the central axis of the air guide pipe 4, and the diameter of the support column 5 is smaller than that of the inner wall of the air guide pipe 4.
The length of each side frame of the linkage plate 7 is equal, and the length of the inner side wall of the linkage plate 7 is larger than the diameter of the inner wall of the air duct 11.
The air guide pipes 4 are uniformly distributed on the mounting base plate 1 in an annular shape around the central axis of the air guide cylinder 11.
Two limiting sleeves 20 are screwed on the screw rod 9, and the limiting sleeves 20 are abutted against the upper end face and the lower end face of the mounting bottom plate 1.
The working principle is as follows: the invention is a roof fan capable of internal circulation, the structure of the roof fan is shown in figures 1 and 4 in ordinary seasons, external air can enter an air duct 11 through a gap between a hood 2 and the air duct 11, and airflow flows downwards from the top of a factory building under the action of a fan 3;
in plum rain season, the rotation of the screw rod 9 can be realized by rotating the handle 10, the screw rod 9 can drive the linkage plate 7 to descend, the linkage plate 7 can drive the support column 5 to move downwards, the support column 5 can drive the hood 2 to fall and close with the upper edge of the air guide cylinder 11, so that outside air cannot enter the plant from the top of the plant, meanwhile, the support column 5 moves downwards to drive the valve plate 6 to move downwards, the valve plate 6 moves to the lower side of the air inlet hole 42, and therefore the air in the plant enters the air guide pipe 4 and then enters the air guide cylinder 11 and then is discharged through the fan 3, and the internal circulation of the plant is realized.
The examples are intended to illustrate the invention, but not to limit it. The described embodiments may be modified by those skilled in the art without departing from the spirit and scope of the present invention, and therefore, the scope of the appended claims should be accorded the full scope of the invention as set forth in the appended claims.
Claims (8)
1. The utility model provides a but roof fan of inner loop, includes mounting plate (1) of rectangle, and the shaping has columniform guide duct (11) on mounting plate (1), and guide duct (11) internal fixation has fan (3), is equipped with hood (2), its characterized in that directly over guide duct (11): vertical air guide pipes (4) are fixedly inserted at four corners of the mounting base plate (1), inclined branch pipes (41) are formed at the upper ends of the air guide pipes (4) in a bending mode, the upper ends of the inclined branch pipes (41) are fixedly inserted on an air guide cylinder (11) on the upper side of the fan (3), the lower ends of the air guide pipes (4) are located on the lower side of the mounting base plate (1), and air inlet holes (42) are formed in the outer wall of the air guide pipe (4) on the lower side of the mounting base plate (1); a vertical supporting column (5) is inserted into the air guide pipe (4), the upper end of the supporting column (5) penetrates through an inclined branch pipe (41) and is fixed on the blast cap (2), the lower end of the supporting column (5) extends out of the air guide pipe (4) and is fixed on a linkage plate (7) in a rectangular frame shape, a valve plate (6) is fixed on the supporting column (5) in an inserting and sleeving manner, and the outer ring of the valve plate (6) abuts against the inner wall of the air guide pipe (4) on the upper side of the air inlet hole (42);
a plurality of T-shaped guide rods (8) are inserted into the linkage plate (7), the upper ends of the guide rods (8) are fixed on the mounting base plate (1), a support lug (71) is formed on the outer side wall of the linkage plate (7), a vertical screw rod (9) is screwed on the support lug (71), and a linear handle (10) is fixed at the upper end of the screw rod (9) through the mounting base plate (1); the lower end of the screw rod (9) abuts against the limiting plate (30), the two ends of the limiting plate (30) are fixed with the upright columns (40), and the upper ends of the upright columns (40) are fixed on the mounting bottom plate (1).
2. An internally circulating roof fan as claimed in claim 1, wherein: the air inlet hole (42) on the air guide pipe (4) is positioned on the outer wall of one side, away from the air guide cylinder (11), of the air guide pipe (4), and an air inlet pipe (50) communicated with the air inlet hole (42) is fixed on the outer wall of the air guide pipe (4).
3. An internally circulating roof fan as claimed in claim 1, wherein: the distance from the valve plate (6) to the air inlet hole (42) on the support column (5) is smaller than the distance from the upper end surface of the air guide cylinder (11) to the inner wall of the blast cap (2) right above the air guide cylinder (11).
4. An internally circulating roof fan as claimed in claim 3, wherein: an annular sealing ring (60) is fixed on the upper end face of the air guide cylinder (11).
5. An internally circulating roof fan as claimed in claim 1, wherein: mounting holes (12) are formed in four corners of the mounting base plate (1), and the mounting holes (12) are distributed on the outer side of the air guide pipe (4).
6. An internally circulating roof fan as claimed in claim 1, wherein: the central axis of the support column (5) coincides with the central axis of the air guide pipe (4), and the diameter of the support column (5) is smaller than that of the inner wall of the air guide pipe (4).
7. An internally circulating roof fan as claimed in claim 1, wherein: the length of each side frame of the linkage plate (7) is equal, and the length of the inner side wall of the linkage plate (7) is larger than the diameter of the inner wall of the air duct (11).
8. An internally circulating roof fan as claimed in claim 1, wherein: the air guide pipes (4) are uniformly distributed on the mounting bottom plate (1) in an annular shape around the central axis of the air guide cylinder (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836959.4A CN111981618A (en) | 2020-08-19 | 2020-08-19 | But internal recycle's roof fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836959.4A CN111981618A (en) | 2020-08-19 | 2020-08-19 | But internal recycle's roof fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111981618A true CN111981618A (en) | 2020-11-24 |
Family
ID=73434884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010836959.4A Pending CN111981618A (en) | 2020-08-19 | 2020-08-19 | But internal recycle's roof fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111981618A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204006322U (en) * | 2014-06-30 | 2014-12-10 | 北京米微科技有限公司 | A kind of new wind air purifier |
| KR20140145003A (en) * | 2013-06-12 | 2014-12-22 | 대동공업주식회사 | Cabin equipped with air conditioning unit for agricultural vehicle |
| CN204361216U (en) * | 2015-01-06 | 2015-05-27 | 青岛亚通达铁路设备有限公司 | A kind of ventilation unit |
| US20170276399A1 (en) * | 2016-03-24 | 2017-09-28 | Gregory Mark Huseman | Systems and methods for replaceable multiple filter units |
| CN206695240U (en) * | 2017-05-16 | 2017-12-01 | 大田县瑞杰室内空气净化服务有限责任公司 | A kind of high-rise buildings indoor air-purification device |
| CN210623169U (en) * | 2019-09-23 | 2020-05-26 | 北京上风通风机制造有限公司上虞分公司 | Roof fan with adjustable inlet and outlet |
-
2020
- 2020-08-19 CN CN202010836959.4A patent/CN111981618A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140145003A (en) * | 2013-06-12 | 2014-12-22 | 대동공업주식회사 | Cabin equipped with air conditioning unit for agricultural vehicle |
| CN204006322U (en) * | 2014-06-30 | 2014-12-10 | 北京米微科技有限公司 | A kind of new wind air purifier |
| CN204361216U (en) * | 2015-01-06 | 2015-05-27 | 青岛亚通达铁路设备有限公司 | A kind of ventilation unit |
| US20170276399A1 (en) * | 2016-03-24 | 2017-09-28 | Gregory Mark Huseman | Systems and methods for replaceable multiple filter units |
| CN206695240U (en) * | 2017-05-16 | 2017-12-01 | 大田县瑞杰室内空气净化服务有限责任公司 | A kind of high-rise buildings indoor air-purification device |
| CN210623169U (en) * | 2019-09-23 | 2020-05-26 | 北京上风通风机制造有限公司上虞分公司 | Roof fan with adjustable inlet and outlet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR200402529Y1 (en) | colum structure for assembly type | |
| CN111981618A (en) | But internal recycle's roof fan | |
| CN212328702U (en) | Spraying equipment for steel pipe machining | |
| CN206793248U (en) | A kind of air filter being easily installed | |
| CN210715203U (en) | High temperature and high pressure resistant centrifugal fan | |
| CN207732550U (en) | A kind of improved blower motor rain cover of structure | |
| CN106089779A (en) | A kind of blower fan apparatus moved up and down and can shake the head | |
| CN214065162U (en) | Roof fan with improved structure | |
| CN205639040U (en) | Height -adjustable's ceiling fan | |
| CN208124570U (en) | Rain-proof waterproof air-exhausting duct | |
| CN212843027U (en) | Cooling tower for preparing p-hydroxy-thiobenzamide | |
| CN206942082U (en) | The powder of automatic plastering machine smears device | |
| CN221432497U (en) | Building dust suppression device | |
| CN210289008U (en) | Ceiling access hole | |
| CN201779048U (en) | Rain-proof type roof fan | |
| CN217748830U (en) | Equipment for manufacturing metal corrugated pipe | |
| CN214709162U (en) | Automatic exhaust mechanism of closed big-arch shelter of wisdom agricultural | |
| CN221779698U (en) | Corrosion-resistant anti-leakage roof fan | |
| CN218102794U (en) | Motor rain-proof fan housing convenient to replace | |
| CN218151540U (en) | Axial flow fan used in high-temperature and high-pressure pipeline | |
| CN219013627U (en) | Shallow round bin vent flange protection device | |
| CN210486559U (en) | Cooling tower for aluminum processing | |
| CN211516318U (en) | Automobile wheel hub central siphon multiaxis tapping combination machine | |
| CN211903241U (en) | Flow-guiding exhaust equipment | |
| CN213237754U (en) | Precise air conditioner humidifying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201124 |