CN213981282U - Roof fan with clearance function - Google Patents
Roof fan with clearance function Download PDFInfo
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- CN213981282U CN213981282U CN202023001077.0U CN202023001077U CN213981282U CN 213981282 U CN213981282 U CN 213981282U CN 202023001077 U CN202023001077 U CN 202023001077U CN 213981282 U CN213981282 U CN 213981282U
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- cleaning
- cylindrical surface
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- vertical telescopic
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Abstract
The utility model discloses a roof fan with cleaning function, the cleaning device comprises a circular lifting support ring arranged in a hood in a lifting way; a cleaning support ring is rotationally arranged in the inner cylindrical surface of the lifting support ring; a pair of fan-ring-shaped side cleaning blocks which are uniformly distributed on the circumference are formed on the lower end surface of the cleaning support ring; a lower cleaning plate in a straight shape is formed on the bottom surfaces of the pair of side cleaning blocks; a plurality of cleaning bristles are uniformly distributed on the outer cylindrical surface of the side cleaning block and the bottom surface of the lower cleaning plate; the cleaning bristles on the side cleaning block are contacted with the inner cylindrical surface of the air duct; a vertical telescopic sleeve is formed on the bottom surface of the central block; a vertical telescopic rod is vertically and elastically arranged in the vertical telescopic sleeve along the length direction of the vertical telescopic sleeve in a telescopic way; a cross-shaped connecting block is formed at the bottom of the vertical telescopic rod; a circular plate-shaped lower connecting block is formed at the bottom of the connecting block; the utility model has the advantages that: the upper end face of the safety net and the inner cylindrical surface of the air duct are convenient to clean, and dust is prevented from entering the room.
Description
Technical Field
The utility model relates to an axial fan's technical field, concretely relates to roof fan with clearance function.
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 with clearance function to the difficult technical problem who clears up of the 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 with a cleaning function comprises a roof fan body and a cleaning device; 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 air duct is detachably fixed with a circular bird-preventing 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; the cleaning device comprises a circular lifting support ring which is arranged in the blast cap in a lifting way; a cleaning support ring is rotationally arranged in the inner cylindrical surface of the lifting support ring; a pair of fan-ring-shaped side cleaning blocks which are uniformly distributed on the circumference are formed on the lower end surface of the cleaning support ring; a lower cleaning plate in a straight shape is formed on the bottom surfaces of the pair of side cleaning blocks; a plurality of cleaning bristles which are uniformly distributed are respectively arranged on the outer cylindrical surface of the side cleaning block and the bottom surface of the lower cleaning plate; the cleaning bristles on the side cleaning block are contacted with the inner cylindrical surface of the air duct; a vertical telescopic sleeve is formed on the bottom surface of the central block; a vertical telescopic rod is vertically and elastically arranged in the vertical telescopic sleeve along the length direction of the vertical telescopic sleeve in a telescopic way; a cross-shaped connecting block is formed at the bottom of the vertical telescopic rod; a circular plate-shaped lower connecting block is formed at the bottom of the connecting block; the size of the lower connecting block is larger than that of the connecting block; a lower through groove in a circular hole shape matched with the lower connecting block is formed on the lower end surface of the lower cleaning plate; an upper through groove which is matched with the connecting block and penetrates upwards is formed on the upper side wall of the lower through groove.
As the optimization of the technical scheme, a plurality of cleaning bristles which are uniformly distributed are arranged on the bottom surface of the lower connecting block.
Preferably, a circular spring mounting ring is formed at the lower part of the vertical telescopic sleeve; the vertical telescopic rod is in a cross shape; the lower parts of the vertical telescopic rod and the vertical telescopic sleeve are sleeved with tension springs; the upper end of the tension spring is fixed on the lower end face of the spring mounting ring, and the lower end of the tension spring is fixed on the upper end face of the connecting block.
Preferably, a pair of left and right distributed lifting electric cylinders is fixed on the upper end surface of the blast cap; the lifting support ring is fixed at the lower end of the piston rods of the pair of lifting electric cylinders.
Preferably, the left end and the right end of the air duct are respectively formed with a horizontal electric cylinder; a horizontal guide rod is fixed on a piston rod of the horizontal electric cylinder; and a vertical moving groove for the horizontal guide rod to vertically move is formed on the outer cylindrical surface of the pair of side cleaning blocks.
Preferably, a plurality of connecting slots with uniformly distributed circumferences are formed at the upper end of the outer cylindrical surface of the air duct; a plurality of connecting insertion blocks matched with the connecting insertion slots are formed on the bottom surface of the bird-preventing net; a horizontal connecting bolt horizontally penetrates through the connecting insert block; the inner side end of the horizontal connecting bolt is screwed on the inner side wall of the connecting slot.
The beneficial effects of the utility model reside in that: simple structure conveniently clears up the up end of safety net and the interior cylinder face of dryer, prevents that the dust from getting into indoorly.
Drawings
Fig. 1 is a schematic structural view of a cross section of the present invention;
in the figure, 10, a roof fan body; 11. a base; 12. an air duct; 120. connecting the slots; 13. a bird net; 131. connecting the plug blocks; 14. a hood; 15. a fan connecting seat; 16. a fan motor; 17. a center block; 171. a fan blade; 18. a vertical telescopic sleeve; 181. a spring mounting ring; 19. a safety net; 20. a cleaning device; 21. a lifting electric cylinder; 22. lifting the support ring; 23. cleaning the support ring; 25. a side cleaning block; 250. a vertical moving groove; 26. a lower cleaning plate; 260. an upper through groove; 261. a lower through groove; 27. cleaning the bristles; 28. connecting blocks; 281. a lower connecting block; 282. a vertical telescopic rod; 283. a tension spring; 29. a horizontal electric cylinder; 291. a horizontal guide bar.
Detailed Description
As shown in fig. 1, a roof fan with a cleaning function comprises a roof fan body 10 and a cleaning device 20; 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 air duct 12 is detachably fixed with a circular bird-preventing 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 17 is fixed at the lower end of an output shaft of the fan motor 16; a plurality of fan blades 171 which are uniformly distributed on the circumference are formed on the cylindrical surface of the central block 17; the cleaning device 20 comprises an annular lifting support ring 22 arranged in the hood 14 in a lifting way; a cleaning support ring 23 is rotationally arranged in the inner cylindrical surface of the lifting support ring 22; a pair of fan-ring-shaped side cleaning blocks 25 which are uniformly distributed on the circumference are formed on the lower end surface of the cleaning support ring 23; a lower cleaning plate 26 in a straight shape is formed on the bottom surface of the pair of side cleaning blocks 25; a plurality of cleaning bristles 27 which are uniformly distributed are respectively arranged on the outer cylindrical surface of the side cleaning block 25 and the bottom surface of the lower cleaning plate 26; the cleaning bristles on the side cleaning block 25 are contacted with the inner cylindrical surface of the air duct 12; a vertical telescopic sleeve 18 is formed on the bottom surface of the central block 17; a vertical telescopic rod 282 is vertically and elastically arranged in the vertical telescopic sleeve 18 along the length direction; the bottom of the vertical telescopic rod 282 is formed with a cross-shaped connecting block 28; a lower connecting block 281 in a circular plate shape is formed at the bottom of the connecting block 28; the size of the lower connecting block 281 is larger than that of the connecting block 28; a lower through groove 261 in a circular hole shape matched with the lower connecting block 281 is formed on the lower end surface of the lower cleaning plate 26; an upper through groove 260 which is matched with the connecting block 28 and penetrates upwards is formed on the upper side wall of the lower through groove 261.
As shown in fig. 1, a plurality of cleaning bristles 27 are uniformly distributed on the bottom surface of the lower connecting block 281.
As shown in fig. 1, a ring-shaped spring mounting ring 181 is formed at the lower part of the vertical telescopic sleeve 18; the vertical extension bar 282 is cross-shaped; the tension springs 283 are sleeved on the lower parts of the vertical telescopic rod 282 and the vertical telescopic sleeve 18; the upper end of the tension spring 283 is fixed on the lower end face of the spring mounting ring 181, and the lower end is fixed on the upper end face of the connecting block 28.
As shown in fig. 1, a pair of left and right distributed lifting electric cylinders 21 are fixed on the upper end surface of the blast cap 14; the elevating support ring 22 is fixed to the lower ends of the piston rods of the pair of elevating electric cylinders 21.
As shown in fig. 1, horizontal electric cylinders 29 are respectively formed at the left end and the right end of the air duct 12; a horizontal guide rod 291 is fixed on a piston rod of the horizontal electric cylinder 29; a vertical moving groove 250 for the horizontal guide 291 to vertically move is formed on the outer cylindrical surface of the pair of side cleaning blocks 25.
As shown in fig. 1, a plurality of connection slots 120 with uniformly distributed circumferences are formed at the upper end of the outer cylindrical surface of the air duct 12; a plurality of connecting plug blocks 131 matched with the connecting slots 120 are formed on the bottom surface of the bird-preventing net 13; a horizontal connecting bolt horizontally penetrates through the connecting plug block 131; the inner side end of the horizontal coupling bolt is screwed to the inner side wall of the coupling slot 120.
The working principle of the roof fan with the cleaning function is as follows;
during normal operation, the lifting support ring 22 is at the uppermost end, the lower cleaning plate 26 is at the uppermost end, the connecting block 28 is at the uppermost end, the cleaning bristles 27 on the bottom surface of the lower cleaning plate 26 and the bottom surface of the lower connecting block 281 are separated from the safety net 19, and the upper through groove 260 is separated from the connecting block 28; the horizontal guide rods 291 are inserted into the vertical moving slots 250 of the respective sides; so that the connecting block 28 is in a freely rotating state;
when cleaning is needed, the lifting support ring 22 descends, the lower cleaning plate 26 is sleeved on the connecting blocks 28 and the lower connecting blocks 281 and synchronously descends along with the lifting support ring 22 until the cleaning bristles 27 on the bottom surface of the lower cleaning plate 26 and the bottom surface of the lower connecting blocks 281 are contacted with the safety net 19, and then the pair of horizontal electric cylinders 29 are started to enable the horizontal guide rods 291 to be separated from the vertical moving groove 250; then the fan motor 16 is started, the cleaning support ring 23, the pair of side cleaning blocks 25 and the lower cleaning plate 26 are driven to rotate through the matching of the connecting block 28 and the upper penetrating groove 260, so that the left side cleaning bristles 27 and the right side cleaning bristles 27 clean the inner cylindrical surface of the air duct 12, the bottom cleaning bristles 27 clean the safety net 19, and meanwhile, the cleaned dust is discharged outwards along with the air flow;
therefore, the upper end surface of the safety net and the inner cylindrical surface of the air duct are convenient to clean, and dust is prevented from entering a room.
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. The utility model provides a roof fan with clearance function which characterized in that: comprises a roof fan body (10) and a cleaning device (20); 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 air duct (12) is detachably fixed 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 (17) is fixed at the lower end of an output shaft of the fan motor (16); a plurality of fan blades (171) which are uniformly distributed on the circumference are formed on the cylindrical surface of the central block (17); the cleaning device (20) comprises a circular lifting support ring (22) which is arranged in the blast cap (14) in a lifting way; a cleaning support ring (23) is rotationally arranged in the inner cylindrical surface of the lifting support ring (22); a pair of fan-ring-shaped side cleaning blocks (25) which are uniformly distributed on the circumference are formed on the lower end surface of the cleaning support ring (23); a lower cleaning plate (26) in a straight shape is formed on the bottom surface of the pair of side cleaning blocks (25); a plurality of cleaning bristles (27) which are uniformly distributed are respectively arranged on the outer cylindrical surface of the side cleaning block (25) and the bottom surface of the lower cleaning plate (26); the cleaning bristles on the side cleaning block (25) are contacted with the inner cylindrical surface of the air duct (12); a vertical telescopic sleeve (18) is formed on the bottom surface of the central block (17); a vertical telescopic rod (282) is vertically and elastically arranged in the vertical telescopic sleeve (18) along the length direction; a cross-shaped connecting block (28) is formed at the bottom of the vertical telescopic rod (282); a lower connecting block (281) in a circular plate shape is formed at the bottom of the connecting block (28); the size of the lower connecting block (281) is larger than that of the connecting block (28); a round hole-shaped lower through groove (261) matched with the lower connecting block (281) is formed on the lower end face of the lower cleaning plate (26); an upward through upper through groove (260) matched with the connecting block (28) is formed on the upper side wall of the lower through groove (261).
2. The roof fan with cleaning function of claim 1, characterized in that: a plurality of cleaning bristles (27) which are uniformly distributed are arranged on the bottom surface of the lower connecting block (281).
3. The roof fan with cleaning function of claim 1, characterized in that: a circular spring mounting ring (181) is formed at the lower part of the vertical telescopic sleeve (18); the vertical telescopic rod (282) is in a cross shape; the lower parts of the vertical telescopic rod (282) and the vertical telescopic sleeve (18) are sleeved with a tension spring (283); the upper end of the tension spring (283) is fixed on the lower end surface of the spring mounting ring (181), and the lower end is fixed on the upper end surface of the connecting block (28).
4. The roof fan with cleaning function of claim 1, characterized in that: a pair of left and right distributed lifting electric cylinders (21) are fixed on the upper end surface of the blast cap (14); the lifting support ring (22) is fixed at the lower end of the piston rod of the pair of lifting electric cylinders (21).
5. The roof fan with cleaning function of claim 1, characterized in that: the left end and the right end of the air duct (12) are respectively provided with a horizontal electric cylinder (29); a horizontal guide rod (291) is fixed on a piston rod of the horizontal electric cylinder (29); a vertical moving groove (250) for the horizontal guide rod (291) to move vertically is formed on the outer cylindrical surface of the pair of side cleaning blocks (25).
6. The roof fan with cleaning function of claim 1, characterized in that: a plurality of connecting slots (120) which are uniformly distributed circumferentially are formed at the upper end of the outer cylindrical surface of the air duct (12); a plurality of connecting plug blocks (131) matched with the connecting slots (120) are formed on the bottom surface of the bird-proof net (13); a horizontal connecting bolt horizontally penetrates through the connecting insert block (131); the inner side end of the horizontal connecting bolt is screwed on the inner side wall of the connecting slot (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023001077.0U CN213981282U (en) | 2020-12-14 | 2020-12-14 | Roof fan with clearance function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023001077.0U CN213981282U (en) | 2020-12-14 | 2020-12-14 | Roof fan with clearance function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213981282U true CN213981282U (en) | 2021-08-17 |
Family
ID=77243230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023001077.0U Active CN213981282U (en) | 2020-12-14 | 2020-12-14 | Roof fan with clearance function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213981282U (en) |
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2020
- 2020-12-14 CN CN202023001077.0U patent/CN213981282U/en active Active
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