CN219795629U - Dual-purpose low noise centrifugal fan of fire control ventilation - Google Patents
Dual-purpose low noise centrifugal fan of fire control ventilation Download PDFInfo
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- CN219795629U CN219795629U CN202321374290.7U CN202321374290U CN219795629U CN 219795629 U CN219795629 U CN 219795629U CN 202321374290 U CN202321374290 U CN 202321374290U CN 219795629 U CN219795629 U CN 219795629U
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- impeller
- fan shell
- base
- screw
- dual
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- 238000009423 ventilation Methods 0.000 title claims abstract description 14
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 18
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a fire-fighting and ventilation dual-purpose low-noise centrifugal ventilator, which relates to the technical field of centrifugal fans and comprises a base, wherein a fan shell is fixedly arranged on one side of the upper end of the base, a motor is fixedly arranged on the other side of the upper end of the base, the motor is electrically connected with an external controller through a connecting wire, an air inlet is formed in one side of the fan shell, an air outlet is formed in the rear end of the fan shell, an impeller frame is arranged in the fan shell and is rotatably arranged in the fan shell through a rotating shaft, and a bearing seat is fixedly arranged on the base positioned on one side of the fan shell. The upper end and the lower end of the impeller blade are respectively provided with the upper air holes and the lower air holes which are arranged in a staggered way, so that the wind noise during rotation of the impeller blade can be reduced by utilizing the porous structure, meanwhile, the upper air holes and the lower air holes which are arranged in the staggered way can not greatly influence the wind power during rotation of the impeller blade, and the two spoilers arranged on the impeller blade can reduce the generation of vortex, so that the wind quantity of the impeller blade can not be influenced by the vortex.
Description
Technical Field
The utility model relates to the technical field of centrifugal fans, in particular to a low-noise centrifugal ventilator for firefighting and ventilation.
Background
The centrifugal fan is a machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, is a driven fluid machine, and is widely used for ventilation, dust discharge and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings;
the centrifugal fan can generate certain noise due to the fact that the impeller inside the centrifugal fan rotates at a high speed, so that the noise generated during operation of the centrifugal fan can be transmitted to the room through the shell of the fan and the air duct, noise of the indoor environment is increased, when the centrifugal fan is noise-reduced, the whole fan can be selectively installed in the sound insulation box by the partial centrifugal fan, so that the noise generated during operation of the centrifugal fan is reduced, the structural size of the whole centrifugal fan can be increased, and in addition, disassembly and assembly maintenance of the centrifugal fan are not facilitated, and the noise generated by vortex during rotation of the impeller of the centrifugal fan cannot be eliminated.
Disclosure of Invention
The utility model aims to provide a dual-purpose low-noise centrifugal ventilator for fire-fighting and ventilation, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a dual-purpose low noise centrifugal fan of fire control ventilation, includes the base, base upper end one side fixed mounting has the fan housing, base upper end opposite side fixed mounting has the motor, just the motor passes through connecting wire and external control ware electric connection, the air intake has been seted up to fan housing one side, the air outlet has been seted up to the fan housing rear end, be equipped with the impeller frame in the fan housing, the impeller frame is rotated through the pivot and is installed in the fan housing, is located fixed mounting has the bearing frame on the base of fan housing one side, just pivot one end is rotated and is installed in the bearing frame, be connected through the belt between the band pulley of output of base and pivot one end, fixedly connected with protection casing between bearing frame and the base, impeller frame outside fixed mounting has the impeller dish, a plurality of impeller pieces of equal fixed mounting in impeller dish both sides.
As a further preferable scheme of the utility model, one side of the fixed shaft is fixedly arranged on one side of the impeller disc in a welding mode, a slot is formed in one side of the fixed shaft, and a screw groove is formed in one side of the slot.
As a further preferable scheme of the utility model, a plurality of upper air holes are formed in the upper ends of the impeller blades, a plurality of lower air holes are formed in the lower ends of the impeller blades, the upper air holes and the lower air holes are arranged in a staggered manner, the impeller blades are installed on two fixed shafts in a penetrating manner, and a spoiler is movably installed on one side of each fixed shaft.
As a further preferable scheme of the utility model, the lower end of the spoiler is provided with the inserted link, one side of the upper end of the inserted link is fixedly arranged at the lower end of the spoiler in a welding mode, the inserted link is internally provided with an inserting hole, the inserted link is installed in an inserting groove corresponding to the fixed shaft in a penetrating way, and the inserted link is internally provided with a fastening screw.
As a further preferable scheme of the utility model, a rotating block is arranged on one side of the fastening screw, one side of the rotating block is fixedly arranged on one side of the fastening screw in a welding mode, the fastening screw is installed in an inserting hole of a corresponding inserting rod in a penetrating mode, one side of the impeller blade is further connected in a corresponding screw groove in a threaded mode, and one side of the rotating block is tightly pressed on one side of the fixing shaft and one side of the impeller blade.
Compared with the prior art, the utility model has the following beneficial effects:
according to the dual-purpose low-noise centrifugal ventilator for fire protection and ventilation, the upper air holes and the lower air holes which are arranged in a staggered mode are respectively formed in the upper end and the lower end of the impeller blade, so that the air noise during rotation of the impeller blade can be reduced by utilizing the porous structure, meanwhile, the wind force during rotation of the impeller blade cannot be greatly influenced by the upper air holes and the lower air holes which are arranged in the staggered mode, and the vortex can be reduced by the two spoilers arranged on the impeller blade, so that the air quantity of the impeller blade cannot be influenced by the vortex.
Drawings
FIG. 1 is a schematic diagram of the main structure of the present utility model;
FIG. 2 is a schematic view of an impeller rack structure according to the present utility model;
FIG. 3 is a schematic view of an impeller blade mounting structure of the present utility model;
fig. 4 is a split view of a fixed shaft structure according to the present utility model.
In the figure: 1. a base; 2. a fan housing; 3. a motor; 4. an impeller frame; 5. a rotating shaft; 6. a bearing seat; 7. a protective cover; 8. an air inlet; 9. an air outlet; 10. impeller blades; 11. a fixed shaft; 12. a spoiler; 13. a slot; 14. a screw groove; 15. a windward hole; 16. a wind outlet; 17. a rod; 18. a jack; 19. fastening a screw; 20. rotating the block; 21. an impeller plate.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-4, the dual-purpose low noise centrifugal ventilator for fire protection and ventilation provided by the utility model comprises a base 1, wherein a fan shell 2 is fixedly arranged on one side of the upper end of the base 1, a motor 3 is fixedly arranged on the other side of the upper end of the base 1, the motor 3 is electrically connected with an external controller through a connecting wire, an air inlet 8 is formed on one side of the fan shell 2, an air outlet 9 is formed in the rear end of the fan shell 2, an impeller frame 4 is arranged in the fan shell 2, the impeller frame 4 is rotatably arranged in the fan shell 2 through a rotating shaft 5, a bearing seat 6 is fixedly arranged on the base 1 positioned on one side of the fan shell 2, one end of the rotating shaft 5 is rotatably arranged in the bearing seat 6, the output end of the base 1 is connected with a belt wheel at one end of the rotating shaft 5 through a belt, a protective cover 7 is fixedly connected between the bearing seat 6 and the base 1, an impeller disc 21 is fixedly arranged on the outer side of the impeller frame 4, and a plurality of impeller blades 10 are fixedly arranged on both sides of the impeller disc 21.
The fixed shaft 11 is fixedly arranged on one side of the impeller disc 21 in a welding mode, a slot 13 is formed in one side of the fixed shaft 11, a spiral groove 14 is formed in one side of the slot 13, a plurality of air holes 15 are formed in the upper end of the impeller blade 10, a plurality of air holes 16 are formed in the lower end of the impeller blade 10, the air holes 15 and the air holes 16 are arranged in a staggered mode, the impeller blade 10 is arranged on the two fixed shafts 11 in a penetrating mode, the air holes 15 and the air holes 16 are formed in the upper end and the lower end of the impeller blade 10 respectively, the air holes 15 and the air holes 16 are arranged in a staggered mode, noise during rotation of the impeller blade 10 can be reduced, and output air quantity lost due to the fact that the air holes 15 and the air holes 16 are formed is reduced to the greatest extent;
the fixed axle 11 side movable mounting has spoiler 12, the spoiler 12 lower extreme is equipped with inserted bar 17, inserted bar 17 upper end one side is fixed mounting in spoiler 12 lower extreme through welded mode, set up jack 18 in the inserted bar 17, inserted bar 17 alternate and install in the slot 13 that corresponds fixed axle 11, and be equipped with fastening screw 19 in the inserted bar 17, fastening screw 19 one side is equipped with rotatory piece 20, rotatory piece 20 one side is fixed mounting in fastening screw 19 one side through welded mode, fastening screw 19 alternate and install in jack 18 that corresponds inserted bar 17, and impeller blade 10 one side still threaded connection is in corresponding helicoid 14, rotatory piece 20 one side then compresses tightly in fixed axle 11 and impeller blade 10 one side, the setting of two spoiler 12 on the impeller blade 10, the vortex that produces when can less impeller blade 10 rotates, thereby prevent to reduce impeller blade 10 output amount of wind because of the seting up of upwind hole 15, downwind hole 16.
It should be noted that, when the impeller blade 10 is mounted on one side of the impeller disc 21, the impeller blade 10 is firstly installed on two corresponding fixed shafts 11 in a penetrating way, then the inserted rods 17 at the lower ends of the two spoilers 12 are respectively installed in the slots 13 of the corresponding fixed shafts 11 in a penetrating way, the spoilers 12 are placed above the impeller blade 10, then the fastening screw 19 is installed in the insertion holes 18 in a penetrating way, and the rotary block 20 is rotated by a tool, so that one end of the rotary block 20 drives the fastening screw 19 to be connected in the screw groove 14 at the inner side of the slot 13 in a threaded way, namely, the inserted rods 17 are fixed in the slots 13 by the fastening screw 19 and the rotary block 20, and the spoilers 12 are fixed on the impeller blade 10, meanwhile, the impeller blades 10 are fixedly arranged on the two fixed shafts 11, then, when the motor 3 drives the rotating shaft 5 through the belt, the rotating shaft 5 drives the impeller disc 21 to rotate through the impeller frame 4, so that the impeller disc 21 drives the impeller blades 10 on two sides to rotate, the impeller blades 10 output external air to the room through the air outlet 9, the upper air holes 15 and the lower air holes 16 on the impeller blades 10 are formed, the wind noise generated when the impeller blades 10 rotate can be reduced, in addition, the spoiler 12 on the impeller blades 10 can reduce vortex generated when the impeller blades 10 rotate, the wind noise is further reduced, and meanwhile, the problem of reducing the wind output due to the forming of the upper air holes 15 and the lower air holes 16 can be reduced.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a dual-purpose low noise centrifugal fan of fire control ventilation, includes base (1), base (1) upper end one side fixed mounting has fan shell (2), base (1) upper end opposite side fixed mounting has motor (3), just motor (3) are through connecting wire and external control ware electric connection, air intake (8) have been seted up to fan shell (2) one side, air outlet (9) have been seted up to fan shell (2) rear end, be equipped with impeller frame (4) in fan shell (2), impeller frame (4) are rotated through pivot (5) and are installed in fan shell (2), are located fixed mounting has bearing frame (6) on base (1) of fan shell (2) one side, just pivot (5) one end is rotated and is installed in bearing frame (6), its characterized in that: the output end of the base (1) is connected with a belt wheel at one end of the rotating shaft (5) through a belt, a protective cover (7) is fixedly connected between the bearing seat (6) and the base (1), an impeller disc (21) is fixedly arranged on the outer side of the impeller frame (4), and a plurality of impeller blades (10) are fixedly arranged on two sides of the impeller disc (21).
2. The dual-purpose low-noise centrifugal ventilator for fire and ventilation according to claim 1, wherein: one side of the fixed shaft (11) is fixedly arranged on one side of the impeller disc (21) in a welding mode, one side of the fixed shaft (11) is provided with a slot (13), and one side of the slot (13) is provided with a spiral groove (14).
3. The dual-purpose low-noise centrifugal ventilator for fire and ventilation according to claim 2, wherein: a plurality of upper wind holes (15) are formed in the upper ends of the impeller blades (10), a plurality of lower wind holes (16) are formed in the lower ends of the impeller blades (10), the upper wind holes (15) and the lower wind holes (16) are arranged in a staggered mode, the impeller blades (10) are installed on two fixed shafts (11) in an penetrating mode, and a spoiler (12) is movably installed on one side of each fixed shaft (11).
4. A dual-purpose low noise centrifugal ventilator for fire and ventilation according to claim 3, characterized in that: the utility model discloses a spoiler, including spoiler (12), fixed axle (11), inserted bar (17) lower extreme, inserted bar (17) upper end one side is through welded mode fixed mounting in spoiler (12) lower extreme, jack (18) have been seted up in inserted bar (17), inserted bar (17) alternate install in slot (13) of corresponding fixed axle (11), just be equipped with fastening screw (19) in inserted bar (17).
5. The dual-purpose low-noise centrifugal ventilator for fire and ventilation according to claim 4, wherein: the utility model discloses a motor rotor blade, including fixed axle (11) and impeller blade (10), screw (20) are equipped with on one side of fastening screw (19), screw (20) are equipped with on one side of screw, screw (20) one side of screw (20) is through welded mode fixed mounting on one side of fastening screw (19), fastening screw (19) alternate install in jack (18) of corresponding inserted bar (17), just impeller blade (10) one side still threaded connection is in screw groove (14) that correspond, screw (20) one side then compresses tightly on fixed axle (11) and impeller blade (10) one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321374290.7U CN219795629U (en) | 2023-06-01 | 2023-06-01 | Dual-purpose low noise centrifugal fan of fire control ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321374290.7U CN219795629U (en) | 2023-06-01 | 2023-06-01 | Dual-purpose low noise centrifugal fan of fire control ventilation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795629U true CN219795629U (en) | 2023-10-03 |
Family
ID=88150712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321374290.7U Active CN219795629U (en) | 2023-06-01 | 2023-06-01 | Dual-purpose low noise centrifugal fan of fire control ventilation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795629U (en) |
-
2023
- 2023-06-01 CN CN202321374290.7U patent/CN219795629U/en active Active
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