CN216008967U - Roof fan capable of swinging to switch positions - Google Patents
Roof fan capable of swinging to switch positions Download PDFInfo
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- CN216008967U CN216008967U CN202122103613.6U CN202122103613U CN216008967U CN 216008967 U CN216008967 U CN 216008967U CN 202122103613 U CN202122103613 U CN 202122103613U CN 216008967 U CN216008967 U CN 216008967U
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Abstract
The utility model discloses a roof fan capable of swinging and switching positions, which comprises a cleaning device; the cleaning device comprises a pair of front and back side cleaning plates on the left side and a pair of front and back side cleaning plates on the right side; the two pairs of side cleaning plates rotate synchronously; a plurality of side brush hairs which are uniformly distributed are formed on the end surface of the outer side of the side cleaning plate; the side brush hair is contacted with the inner cylindrical surface of the air duct; a cylindrical lower central column is respectively pivoted between the lower ends of the left side pair of side cleaning plates and the lower ends of the right side pair of side cleaning plates; a lower cleaning plate is fixed on the lower central column; a plurality of lower bristles are uniformly distributed on the end surface of the inner side of the lower cleaning plate; the left end and the right end of the lower part of the air duct are respectively provided with a switching driving unit; when the pair of lower cleaning plates are in a horizontal state, the lower bristles are in contact with the upper end face of the safety net; the utility model has the advantages that: the roof fan has no influence when in use, and the upper end surface of the safety net and the inner cylindrical surface of the air duct are convenient to clean.
Description
Technical Field
The utility model relates to an axial fan's technical field, concretely relates to roof fan of swing switching position.
Background
The roof fan is used for ventilation and exhaust of buildings such as factory buildings, office buildings, hotels, auditoriums, movie theaters and the like. Among the roof fan on the present market, the wind gap position of fan bottom generally all is equipped with the safety net, prevents that the foreign matter from flying into the fan inside and being thrown away by the impeller, injures personnel by a crashing object, causes the incident, but along with long-time use, can the thick dust of adhesion one deck on fan safety net and the inside wall, when the fan does not use, these dusts can drop subaerial, need clear up the trouble of ten minutes.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a roof fan of position is switched in the swing to the difficult technical problem who clears up of dust of the fan safety net of present roof fan and inside wall.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a roof fan capable of swinging to switch positions comprises a roof fan body; the roof fan body comprises a circular base; an annular cylindrical air duct is fixed on the upper end surface of the base; the inner cylindrical surface of the base and the inner cylindrical surface of the air duct are positioned on the same cylindrical surface; a safety net is arranged on the inner cylindrical surface of the base; the upper end of the outer cylindrical surface of the air duct is formed with a circular bird-proof net; the upper end of the bird-preventing net is detachably fixed with a hood; the bottom of the blast cap is provided with a fan connecting seat; a fan motor is fixed on the fan connecting seat; a circular plate-shaped central block is fixed at the lower end of an output shaft of the fan motor; a plurality of fan blades which are uniformly distributed circumferentially are formed on the cylindrical surface of the central block; comprises a cleaning device; the cleaning device comprises a pair of front and back side cleaning plates on the left side and a pair of front and back side cleaning plates on the right side; the two pairs of side cleaning plates rotate synchronously; a plurality of side brush hairs which are uniformly distributed are formed on the end surface of the outer side of the side cleaning plate; the side brush hair is contacted with the inner cylindrical surface of the air duct; a cylindrical lower central column is respectively pivoted between the lower ends of the left side pair of side cleaning plates and the lower ends of the right side pair of side cleaning plates; a lower cleaning plate is fixed on the lower central column; a plurality of lower bristles are uniformly distributed on the end surface of the inner side of the lower cleaning plate; the left end and the right end of the lower part of the air duct are respectively provided with a switching driving unit; when the pair of lower cleaning plates is in a horizontal state, the lower bristles are in contact with the upper end surface of the safety net.
Preferably, the upper part of the inner cylindrical surface of the air duct is formed with a driving circular groove in the shape of a circular groove; a driving gear ring matched with the driving circular groove is formed between the outer cylindrical surfaces of the pair of side cleaning plates; a gear placing groove with a left opening and a right opening is formed at the left end of the outer cylindrical surface of the driving circular groove; a side supporting plate is formed at the left end of the upper part of the outer cylindrical surface of the air duct; a cleaning motor is fixed on the upper end surface of the side supporting plate; a driving gear is fixed on an output shaft of the cleaning motor; the right end of the driving gear is positioned in the gear containing groove and is meshed with the driving gear ring.
Preferably, the left end and the right end of the upper end surface of the base are respectively provided with a switching driving box; the switching driving box is fixedly connected with the air duct; the left end and the right end of the lower part of the air duct are respectively provided with a lower through hole with a left opening and a right opening; the switching drive unit comprises a left-right moving seat which is arranged in the switching drive box in a left-right moving way; the rack supporting seats are vertically and movably arranged on the upper parts of the end surfaces of the left and right moving seats, which are close to the air duct; the end surfaces of the pair of rack supporting seats, which are close to the air duct, are formed with switching driving racks; the lower through hole is used for the switching driving rack to pass left and right; the front end and the rear end of the lower central column are respectively fixed with a switching gear; the switching gear is matched with the switching driving rack; a horizontal baffle is formed between the pair of side cleaning plates and close to the lower end of the fan motor, and a vertical baffle is formed between the pair of side cleaning plates and far away from the middle part of the side cleaning plates and close to the fan motor; horizontal magnets are embedded at the lower ends of the end surfaces, close to each other, of the pair of lower cleaning plates, and vertical magnets are embedded at the upper ends of the end surfaces, far away from each other, of the pair of lower cleaning plates; the horizontal baffle and the vertical baffle are made of metal which can be adsorbed by the vertical magnet; the switching driving rack is positioned on the upper side of the lower central column; when the pair of lower cleaning plates are horizontally arranged, the horizontal baffle is contacted with the horizontal magnet; when a pair of lower cleaning plates is vertically arranged, the vertical baffle plate is in contact with the vertical magnet.
Preferably, a left driving threaded rod and a right driving threaded rod are pivoted between the lower end of the side wall of the switching driving box far away from the air duct and the air duct; a left driving motor and a right driving motor are fixed on the end surface of the switching driving box far away from the air duct; the left and right driving threaded rods are fixedly connected with output shafts of left and right driving motors on the corresponding sides; the left and right moving seats are screwed on the left and right driving threaded rods.
Preferably, a vertical driving electric cylinder is fixed at one end, far away from the air duct, of the upper end face of the switching driving box; a vertical adjusting seat is fixed at the lower end of a piston rod of the vertical driving electric cylinder; a left guide post and a right guide post are formed on the end surface of the vertical adjusting seat close to the air duct; vertical guide grooves are formed in the upper portions of the end faces, close to the air duct, of the left and right moving seats; the rack supporting seat is vertically movably arranged in the vertical guide groove; the left and right direction sleeves of the upper end of the rack supporting seat are arranged on the left and right guide posts.
Preferably, the horizontal cross section of the vertical guide groove is T-shaped; the rack supporting seat is in a T shape matched with the vertical guide groove.
The beneficial effects of the utility model reside in that: the roof fan has no influence when in use, and the upper end surface of the safety net and the inner cylindrical surface of the air duct are convenient to clean.
Drawings
Fig. 1 is a schematic structural view of a cross section of the present invention;
fig. 2 is a partially enlarged structural diagram of a in fig. 1 according to the present invention;
fig. 3 is a schematic structural view of a cross section of the right side cleaning plate 23 and the lower cleaning plate 24 of the present invention;
in the figure, 10, a roof fan body; 11. a base; 12. an air duct; 120. lower punching; 121. a driving circular groove; 122. a gear installation groove; 123. side supporting plates; 13. a bird net; 14. a hood; 15. a fan connecting seat; 16. a fan motor; 17. a fan blade; 18. switching the driving box; 19. a safety net; 20. a cleaning device; 21. cleaning the motor; 211. a driving gear; 22. a drive gear ring; 23. a side cleaning plate; 231. side bristles; 232. a lower central column; 233. a vertical baffle; 234. a horizontal baffle; 235. a switching gear; 24. a lower cleaning plate; 241. lower bristles; 242. a vertical magnet; 243. a horizontal magnet; 25. a left and right driving motor; 251. driving the threaded rod left and right; 26. a left and right moving seat; 260. a vertical guide groove; 27. a rack support seat; 271. switching the driving rack; 28. a vertical drive electric cylinder; 281. a vertical adjusting seat; 282. a left guide post and a right guide post.
Detailed Description
As shown in fig. 1 to 3, a roof fan for swinging a switching position includes a roof fan body 10; the roof fan body 10 comprises a circular base 11; an annular cylindrical air duct 12 is fixed on the upper end surface of the base 11; the inner cylindrical surface of the base 11 and the inner cylindrical surface of the air duct 12 are positioned on the same cylindrical surface; a safety net 19 is arranged on the inner cylindrical surface of the base 11; the upper end of the outer cylindrical surface of the air duct 12 is formed with a circular bird-proof net 13; the upper end of the bird-proof net 13 is detachably fixed with a blast cap 14; the bottom of the blast cap 14 is provided with a fan connecting seat 15; a fan motor 16 is fixed on the fan connecting seat 15; a circular plate-shaped central block is fixed at the lower end of an output shaft of the fan motor 16; a plurality of fan blades 17 which are uniformly distributed on the circumference are formed on the cylindrical surface of the central block; comprises a cleaning device 20; the cleaning device 20 comprises a pair of front and rear side cleaning plates 23 on the left side and a pair of front and rear side cleaning plates 23 on the right side; the two pairs of side cleaning plates 23 rotate synchronously; a plurality of side bristles 231 which are uniformly distributed are formed on the outer end face of the side cleaning plate 23; the side brush hairs 231 are contacted with the inner cylindrical surface of the air duct 12; a cylindrical lower central column 232 is respectively pivoted between the lower ends of the left pair of side cleaning plates 23 and the lower ends of the right pair of side cleaning plates 23; the lower central column 232 is fixed with a lower cleaning plate 24; a plurality of lower bristles 241 which are uniformly distributed are formed on the end surface of the inner side of the lower cleaning plate 24; the left end and the right end of the lower part of the air duct 12 are respectively provided with a switching driving unit; when the pair of lower cleaning plates 24 is in a horizontal state, the lower bristles 241 are in contact with the upper end surface of the safety net 19.
As shown in fig. 1 and 2, a driving circular groove 121 in the shape of a circular groove is formed at the upper part of the inner cylindrical surface of the air duct 12; a driving gear ring 22 matched with the driving circular groove 121 is formed between the outer cylindrical surfaces of the pair of side cleaning plates 23; a gear accommodating groove 122 with a left opening and a right opening is formed at the left end of the outer cylindrical surface of the driving circular groove 121; a side supporting plate 123 is formed at the left end of the upper part of the outer cylindrical surface of the air duct 12; a cleaning motor 21 is fixed on the upper end surface of the side supporting plate 123; a driving gear 211 is fixed on an output shaft of the cleaning motor 21; the right end of the driving gear 211 is located in the gear seating groove 122 and engaged with the driving ring gear 22.
As shown in fig. 1 and 3, the switching drive box 18 is provided at each of the left and right ends of the upper end surface of the base 11; the switching driving box 18 is fixedly connected with the air duct 12; the left end and the right end of the lower part of the air duct 12 are respectively provided with a lower through hole 120 with a left opening and a right opening; the switching drive unit includes a left-right movement base 26 disposed in the switching drive box 18 to move left and right; a rack supporting seat 27 is vertically arranged on the upper part of the end surface of the left and right moving seats 26 close to the air duct 12 in a moving way; the end surfaces of the pair of rack supporting seats 27 close to the air duct 12 are formed with switching driving racks 271; the lower through hole 120 is used for the switching driving rack 271 to pass left and right; the front end and the rear end of the lower central column 232 are respectively fixed with a switching gear 235; the switching gear 235 is matched with the switching driving rack 271; a horizontal baffle 234 is formed between the pair of side cleaning plates 23 and the lower end of the fan motor 16, and a vertical baffle 233 is formed between the middle part of the side cleaning plates which is far away from the fan motor 16; horizontal magnets 243 are embedded at the lower ends of the end surfaces close to each other and vertical magnets 242 are embedded at the upper ends of the end surfaces far away from each other of the pair of lower cleaning plates 24; the horizontal and vertical flaps 234 and 233 are made of metal that can be attracted by the vertical magnets 242; the switching drive rack 271 is positioned on the upper side of the lower central column 232; when the pair of lower cleaning plates 24 are horizontally disposed, the horizontal barrier 234 comes into contact with the horizontal magnet 243; when the pair of lower cleaning plates 24 are vertically disposed, the vertical barrier 233 comes into contact with the vertical magnet 242.
As shown in fig. 1 and 2, a left and right driving threaded rod 251 is pivoted between the lower end of the side wall of the switching driving box 18 far away from the air duct 12 and the air duct 12; a left driving motor 25 and a right driving motor 25 are fixed on the end surface of the switching driving box 18 far away from the air duct 12; the left and right driving threaded rod 251 is fixedly connected with the output shaft of the left and right driving motor 25 on the corresponding side; the left-right moving seat 26 is screwed on the left-right driving threaded rod 251.
As shown in fig. 1 and 2, a vertical driving electric cylinder 28 is fixed at one end of the upper end surface of the switching driving box 18 far away from the air duct 12; a vertical adjusting seat 281 is fixed at the lower end of the piston rod of the vertical driving electric cylinder 28; a left guide post 282 and a right guide post 282 are formed on the end surface of the vertical adjusting seat 281 close to the air duct 12; vertical guide grooves 260 are formed on the upper parts of the end surfaces of the pair of left and right moving seats 26 close to the air duct 12; the rack supporting seat 27 is vertically movably arranged in the vertical guide groove 260; the upper end of the rack support base 27 is sleeved on the left and right guide posts 282 in the left-right direction.
The horizontal cross section of the vertical guide groove 260 is T-shaped; the rack support base 27 is T-shaped to mate with the vertical guide groove 260.
The working principle of the roof fan for swinging the switching position;
when the machine works normally, the pair of telescopic driving plates 24 are in a vertical state, and the telescopic driving plates 24 are positioned between the pair of side cleaning plates 23 on the corresponding sides; thus, the roof fan works normally without influence;
when cleaning is required, the pair of rack support seats 27 are at the lowermost end, and then the pair of right and left traveling seats 26 are brought close to each other, so that the left pair of switching drive racks 271 and the right pair of switching drive racks 271 are passed through the respective side lower through holes 120 and engaged with the respective side switching gears 235, so that the pair of lower center posts 232 are driven to rotate so that the pair of lower cleaning plates 24 swing inward to become a horizontal state, so that the lower bristles 241 are in contact with the upper end surface of the safety net 19; then the pair of rack supporting seats 27 are lifted, and then the pair of left and right moving seats 26 are mutually separated and returned; then the two pairs of side cleaning plates 23 synchronously rotate, in the process, the side bristles 231 clean the inner cylindrical surface of the air duct 12, and the lower bristles 241 clean the upper end surface of the safety net 19; after the two pairs of side cleaning plates 23 rotate for a period of time, the fan motor 16 is started, and the dust cleaned in this way is discharged out of the roof fan;
therefore, the roof fan is free of influence during use, and the upper end face of the safety net and the inner cylindrical surface of the air duct are convenient to clean.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. A roof fan for swinging switching positions, comprising a roof fan body (10); the roof fan body (10) comprises a circular base (11); an annular cylindrical air duct (12) is fixed on the upper end surface of the base (11); the inner cylindrical surface of the base (11) and the inner cylindrical surface of the air duct (12) are positioned on the same cylindrical surface; a safety net (19) is arranged on the inner cylindrical surface of the base (11); the upper end of the outer cylindrical surface of the air duct (12) is formed with a circular anti-bird net (13); the upper end of the bird-proof net (13) is detachably fixed with a blast cap (14); the bottom of the blast cap (14) is provided with a fan connecting seat (15); a fan motor (16) is fixed on the fan connecting seat (15); a circular plate-shaped central block is fixed at the lower end of an output shaft of the fan motor (16); a plurality of fan blades (17) which are uniformly distributed on the circumference are formed on the cylindrical surface of the central block; the method is characterized in that: comprises a cleaning device (20); the cleaning device (20) comprises a pair of front and back distributed side cleaning plates (23) on the left side and a pair of front and back distributed side cleaning plates (23) on the right side; the two pairs of side cleaning plates (23) rotate synchronously; a plurality of side brush hairs (231) which are uniformly distributed are formed on the outer side end surface of the side cleaning plate (23); the side brush hairs (231) are contacted with the inner cylindrical surface of the air duct (12); a cylindrical lower central column (232) is respectively pivoted between the lower ends of the left pair of side cleaning plates (23) and the lower ends of the right pair of side cleaning plates (23); a lower cleaning plate (24) is fixed on the lower central column (232); a plurality of lower brush hairs (241) which are uniformly distributed are formed on the end surface of the inner side of the lower cleaning plate (24); the left end and the right end of the lower part of the air duct (12) are respectively provided with a switching driving unit; when the pair of lower cleaning plates (24) are in a horizontal state, the lower bristles (241) are in contact with the upper end surface of the safety net (19).
2. A swing switch position roof fan as claimed in claim 1, wherein: a driving circular groove (121) in the shape of a circular groove is formed at the upper part of the inner cylindrical surface of the air duct (12); a driving gear ring (22) matched with the driving circular groove (121) is formed between the outer cylindrical surfaces of the pair of side cleaning plates (23); a gear placing groove (122) with a left opening and a right opening is formed at the left end of the outer cylindrical surface of the driving circular groove (121); a side supporting plate (123) is formed at the left end of the upper part of the outer cylindrical surface of the air duct (12); a cleaning motor (21) is fixed on the upper end surface of the side supporting plate (123); a driving gear (211) is fixed on an output shaft of the cleaning motor (21); the right end of the driving gear (211) is positioned in the gear seating groove (122) and engaged with the driving ring gear (22).
3. A swing switch position roof fan as claimed in claim 1, wherein: the left end and the right end of the upper end surface of the base (11) are respectively provided with a switching driving box (18); the switching driving box (18) is fixedly connected with the air duct (12); the left end and the right end of the lower part of the air duct (12) are respectively provided with a lower perforation (120) with a left opening and a right opening; the switching drive unit comprises a left-right moving seat (26) which is arranged in the switching drive box (18) in a left-right moving way; a rack supporting seat (27) is vertically arranged on the upper part of the end surface of the left and right moving seats (26) close to the air duct (12); a switching driving rack (271) is formed on the end surface of the pair of rack supporting seats (27) close to the air duct (12); the lower through hole (120) is used for the switching driving rack (271) to pass left and right; the front end and the rear end of the lower central column (232) are respectively fixed with a switching gear (235); the switching gear (235) is matched with the switching driving rack (271); a horizontal baffle (234) is formed between the pair of side cleaning plates (23) and close to the lower end of the fan motor (16), and a vertical baffle (233) is formed between the middle part of the side cleaning plates far away from the fan motor (16); horizontal magnets (243) are embedded at the lower ends of the end surfaces of the pair of lower cleaning plates (24) close to each other, and vertical magnets (242) are embedded at the upper ends of the end surfaces far away from each other; the horizontal baffle (234) and the vertical baffle (233) are made of metal that can be attracted by the vertical magnet (242); the switching driving rack (271) is positioned on the upper side of the lower central column (232); when the pair of lower cleaning plates (24) are horizontally arranged, the horizontal baffle (234) is contacted with the horizontal magnet (243); when the pair of lower cleaning plates (24) are vertically arranged, the vertical baffle (233) is in contact with the vertical magnet (242).
4. A swing switch position roof fan according to claim 3, wherein: a left driving threaded rod and a right driving threaded rod (251) are pivoted between the lower end of the side wall of the switching driving box (18) far away from the air duct (12) and the air duct (12); a left driving motor and a right driving motor (25) are fixed on the end surface of the switching driving box (18) far away from the air duct (12); the left and right driving threaded rod (251) is fixedly connected with the output shaft of a left and right driving motor (25) on the corresponding side; the left and right moving seats (26) are screwed on the left and right driving threaded rods (251).
5. A swing switch position roof fan according to claim 3, wherein: a vertical driving electric cylinder (28) is fixed at one end of the upper end surface of the switching driving box (18) far away from the air duct (12); a vertical adjusting seat (281) is fixed at the lower end of a piston rod of the vertical driving electric cylinder (28); a left guide post and a right guide post (282) are formed on the end surface of the vertical adjusting seat (281) close to the air duct (12); vertical guide grooves (260) are formed in the upper portions of the end faces, close to the air duct (12), of the pair of left and right moving seats (26); the rack supporting seat (27) is vertically movably arranged in the vertical guide groove (260); the upper end of the rack supporting seat (27) is sleeved on the left and right guide posts (282) in the left and right directions.
6. An oscillating switch position roof fan according to claim 5, characterized in that: the horizontal cross section of the vertical guide groove (260) is T-shaped; the rack supporting seat (27) is in a T shape matched with the vertical guide groove (260).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122103613.6U CN216008967U (en) | 2021-09-02 | 2021-09-02 | Roof fan capable of swinging to switch positions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122103613.6U CN216008967U (en) | 2021-09-02 | 2021-09-02 | Roof fan capable of swinging to switch positions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216008967U true CN216008967U (en) | 2022-03-11 |
Family
ID=80593274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122103613.6U Active CN216008967U (en) | 2021-09-02 | 2021-09-02 | Roof fan capable of swinging to switch positions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216008967U (en) |
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2021
- 2021-09-02 CN CN202122103613.6U patent/CN216008967U/en active Active
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