CN210919500U - Smoke exhaust fan with small smoke exhaust resistance - Google Patents
Smoke exhaust fan with small smoke exhaust resistance Download PDFInfo
- Publication number
- CN210919500U CN210919500U CN201922071807.5U CN201922071807U CN210919500U CN 210919500 U CN210919500 U CN 210919500U CN 201922071807 U CN201922071807 U CN 201922071807U CN 210919500 U CN210919500 U CN 210919500U
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- China
- Prior art keywords
- motor
- rotating shaft
- gear
- smoke exhaust
- fan
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- 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.)
- Expired - Fee Related
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- 239000000779 smoke Substances 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000003517 fume Substances 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 12
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 108010066114 cabin-2 Proteins 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a smoke exhaust fan that resistance of discharging fume is little, including the fan casing, its characterized in that: a motor cabin is arranged outside the fan shell, an impeller is arranged in the fan shell, and an inner gear and blades are arranged on the impeller; a motor is arranged in the motor bin, a rotating shaft of the motor is connected with a driving gear which is an external gear, the driving gear is connected with a first transmission gear through a chain, and the first transmission gear is an external gear; the first transmission gear is fixedly connected with a rotating shaft, one end of the rotating shaft is fixed on the rotating shaft support, the other end of the rotating shaft is fixedly connected with a second transmission gear, the two transmission gears are external gears, and the second transmission gear is meshed with the internal gears on the impellers. The utility model discloses it is fast to have to air exhaust, and the volume of airing exhaust is big, and is efficient, and the noise is little, and the resistance of airing exhaust is little, the good beneficial effect of motor heat dissipation.
Description
Technical Field
The utility model relates to a fire-fighting equipment technical field, in particular to smoke exhaust fan that resistance of discharging fume is little.
Background
With the rapid development of the building industry, more and more high-rise buildings are built, and the fire prevention problem of the buildings is increasingly serious. Modern buildings built in recent years are generally provided with a fire-fighting smoke exhaust system which mainly comprises a sensing device, a control device, a smoke exhaust air duct, a smoke exhaust fan and the like. The smoke exhaust fan is a core component of a fire-fighting smoke exhaust system, and the development of the high-performance fire-fighting smoke exhaust fan can generate good economic and social benefits. At present, the general smoke exhaust fan in China all adopts axial flow fan, and the motor is coaxial with the blade, and the motor is often exposed under the high temperature environment, and not only the noise is big, breaks down easily moreover. In order to solve the above problems, chinese utility model patent CN200620010590.7 discloses a self-radiating smoke exhaust fan for fire control, which mainly comprises an outer cylinder, an inner cylinder, an impeller assembly, a motor, a guide plate and an air guide pipe, and is characterized in that an induced draft guide pipe is arranged between the inner cylinder and the outer cylinder, the induced draft guide pipe is transversely distributed at two ends of the outer cylinder left and right, the inner cylinder and the outer cylinder are connected together, and an air outlet bent pipe is arranged at the front end of the inner cylinder. The utility model discloses a although the self-cooling type fire control smoke exhaust fan that provides can reduce noise and power that motor heat dissipation impeller produced, still have following problem: because the motor is arranged in the smoke exhaust channel, the motor is in a high-temperature environment, the self-radiating effect is not ideal enough by adopting the induced draft pipeline, the radiating wind power is small, and the motor is easy to overheat and lose efficacy. However, the motors of the smoke exhaust fans are arranged in the smoke exhaust channel, so that resistance is formed on smoke exhaust, and the smoke exhaust effect is influenced.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an efficient, the noise is little, the installation is compact, the good little smoke exhaust fan of resistance of discharging fume of motor heat dissipation.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a smoke exhaust fan that resistance of discharging fume is little, includes fan housing, its characterized in that: a motor cabin is arranged outside the fan shell, an impeller is arranged in the fan shell, and an inner gear and blades are arranged on the impeller; a motor is arranged in the motor bin, a rotating shaft of the motor is connected with a driving gear which is an external gear, the driving gear is connected with a first transmission gear through a chain, and the first transmission gear is an external gear; the first transmission gear is fixedly connected with a rotating shaft, one end of the rotating shaft is rotatably connected to the rotating shaft support, the other end of the rotating shaft is fixedly connected with a second transmission gear, the two transmission gears are external gears, and the second transmission gear is meshed with the internal gears on the impellers.
The fan is characterized in that a plurality of rolling shafts are arranged on the fan shell, the rolling shafts are rotatably connected to the inner side of the fan shell through bearings, and the rolling shafts are in rolling connection with the impeller.
And a rotating shaft of the motor is also provided with a small blade, and the small blade synchronously rotates along with the rotating shaft of the motor.
The front end of the motor cabin is provided with an air inlet, a filter screen is arranged outside the air inlet, and the rear end of the motor cabin is provided with an air outlet. The blade on the motor shaft drives the outside cold air to enter the motor cabin, the motor is cooled, sundries can be prevented from entering the motor cabin through the filter screen at the air inlet, and the sundries are prevented from being clamped between the gear and the chain to cause transmission faults.
The utility model discloses set up the internal gear on the impeller, avoided traditional impeller to adopt the pivot to provide the drawback that power brought, the impeller of pivot is taken to the tradition, need set up the crossbeam, and the impeller pivot is fixed on the crossbeam, and impeller pivot and crossbeam can influence and air exhaust, to the formation resistance of airing exhaust. The utility model discloses reduced the resistance that traditional impeller pivot and crossbeam brought, had fast airing exhaust, it is big to arrange the volume of airing exhaust, efficient, and the noise is little, advantage that the resistance of airing exhaust is little.
The utility model discloses set up small-size blade in motor shaft, this small-size blade is along with motor shaft pivoted in-process, with external cold air suction motor storehouse, this motor cooling has simple structure, the cooling is effectual, the energy consumption is low advantage.
To sum up, the utility model discloses it is fast to have to air exhaust, and it is big to arrange the volume of airing exhaust, and is efficient, and the noise is little, and the resistance of airing exhaust is little, the good beneficial effect of motor heat dissipation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of an assembly structure of the impeller and the second transmission gear.
Detailed Description
As shown in fig. 1 and 2, the smoke exhaust fan with small smoke exhaust resistance comprises a fan shell 1, wherein a motor cabin 2 is arranged outside the fan shell 1, an impeller 3 is arranged in the fan shell 1, and an internal gear 31 and blades 32 are arranged on the impeller 3; a motor 4 is arranged in the motor bin 2, a rotating shaft 41 of the motor is connected with a driving gear 5, the driving gear 5 is an external gear, the driving gear 5 is connected with a first transmission gear 7 through a chain 6, and the first transmission gear 7 is an external gear; the first transmission gear 7 is fixedly connected with a rotating shaft 8, one end of the rotating shaft 8 is fixed on a rotating shaft support 9, the other end of the rotating shaft 8 is fixedly connected with a second transmission gear 10, the second transmission gear 10 is an external gear, and the second transmission gear 10 is meshed with an internal gear 31 on the impeller 3. The fan casing 1 is provided with a plurality of rolling shafts 11, the rolling shafts 11 are rotatably connected to the inner side of the fan casing 1 through bearings, and the rolling shafts 11 are in rolling connection with the impeller 3. The rotating shaft 41 of the motor is also provided with a small blade 12, and the small blade 12 rotates synchronously with the rotating shaft 41 of the motor. An air inlet 21 is formed in the front end of the motor bin 2, a filter screen 22 is arranged outside the air inlet, and an air outlet 23 is formed in the rear end of the motor bin.
Claims (3)
1. The utility model provides a smoke exhaust fan that resistance of discharging fume is little, includes fan housing, its characterized in that: a motor cabin is arranged outside the fan shell, an impeller is arranged in the fan shell, and an inner gear and blades are arranged on the impeller; a motor is arranged in the motor bin, a rotating shaft of the motor is connected with a driving gear which is an external gear, the driving gear is connected with a first transmission gear through a chain, and the first transmission gear is an external gear; the first transmission gear is fixedly connected with a rotating shaft, one end of the rotating shaft is fixed on the rotating shaft support, the other end of the rotating shaft is fixedly connected with a second transmission gear, the two transmission gears are external gears, and the second transmission gear is meshed with the internal gears on the impellers.
2. The smoke exhaust fan with small smoke exhaust resistance according to claim 1, characterized in that: the fan is characterized in that a plurality of rolling shafts are arranged on the fan shell, the rolling shafts are rotatably connected to the inner side of the fan shell through bearings, and the rolling shafts are in rolling connection with the impeller.
3. The smoke exhaust fan with small smoke exhaust resistance according to claim 1, characterized in that: the rotating shaft of the motor is also provided with a small blade which synchronously rotates along with the rotating shaft of the motor; the front end of the motor cabin is provided with an air inlet, a filter screen is arranged outside the air inlet, and the rear end of the motor cabin is provided with an air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922071807.5U CN210919500U (en) | 2019-11-27 | 2019-11-27 | Smoke exhaust fan with small smoke exhaust resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922071807.5U CN210919500U (en) | 2019-11-27 | 2019-11-27 | Smoke exhaust fan with small smoke exhaust resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919500U true CN210919500U (en) | 2020-07-03 |
Family
ID=71344633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922071807.5U Expired - Fee Related CN210919500U (en) | 2019-11-27 | 2019-11-27 | Smoke exhaust fan with small smoke exhaust resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210919500U (en) |
-
2019
- 2019-11-27 CN CN201922071807.5U patent/CN210919500U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 |