CN210799466U - A high-efficiency ventilation negative pressure fan - Google Patents

Abstract

The utility model discloses a negative-pressure air fan of high-efficient ventilation relates to ventilation blower technical field, specifically is a negative-pressure air fan of high-efficient ventilation, including outer frame, the inside of outer frame is from last to having seted up motor room and fan room down. This negative-pressure air fan of high-efficient ventilation, through the inside at the fan room be provided with the air inlet room, air storage chamber and the room of airing exhaust, and the first flabellum and the second flabellum of the inside of air inlet room and the room of airing exhaust respectively with two positive and negative output shaft swing joint of asynchronous machine, and then can inhale the gas of the indoor side of air inlet through first flabellum, and transmit it to the inside of air storage chamber, and the second flabellum carries out the negative pressure by another output shaft drive of asynchronous machine and rotates simultaneously, make the inside gas of air storage chamber discharge to the outside of fan room through the room of airing exhaust, thereby increased the indoor second flabellum of airing exhaust and carried out negative pressure pivoted efficiency, the problem that current device negative pressure rotation efficiency is low has been solved.

Description

A high-efficiency ventilation negative pressure fan

technical field

The utility model relates to the technical field of ventilation fans, in particular to a high-efficiency ventilation negative pressure fan.

Background technique

The negative pressure fan is a device that uses the cooling principle of air convection and negative pressure ventilation. It is a device that naturally inhales fresh air from the opposite of the installation site, such as a door or window, and quickly forcibly discharges the hot indoor air to the outside. The negative pressure fan is fixed. Installed inside many workshops, workshops and greenhouses, it is responsible for discharging the internal gas, and an air inlet is fixed on the other side of the negative pressure fan to inhale fresh air.

However, due to the limitation of the shape of its own fan blades, the existing negative pressure fans have limited ventilation efficiency, so many workshops are equipped with multiple negative pressure fans to work at the same time, which not only wastes resources, but also causes long-term high-power motor operation. In addition, because the interior of many workshops will contaminate oil stains and dust on the outside of the fan blades of the negative pressure machine when the negative pressure machine is working, and most of the negative pressure machines are installed in the upper part of the workshop frame, it is difficult to It is cleaned frequently, therefore, we have developed a negative pressure fan for efficient ventilation.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a negative pressure fan with high efficiency ventilation, which solves the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the present utility model is realized through the following technical solutions: a negative pressure fan with high efficiency ventilation, comprising an outer frame, a motor room and a fan room are opened inside the outer frame from top to bottom, and the motor room is provided with a motor room and a fan room. The inside of the fan is provided with an asynchronous motor, the two ends of the asynchronous motor are respectively provided with a first output shaft and a second output shaft, the outside of the first output shaft and the second output shaft are movably sleeved with belts, and the fan There are shutters on both sides of the chamber, and the interior of the fan chamber is provided with an air inlet chamber, an air storage chamber and an air exhaust chamber in sequence from left to right. The inside of the fan chamber is provided with a fixed support rod, the outside of the fixed support rod is fixedly connected with a filter screen, one end of the fixed support rod is fixedly installed with a cleaning agent cavity, and the top of the cleaning agent cavity is provided with an atomizing nozzle. The two ends of the fixed support rod are respectively provided with a first rotating shaft and a second rotating shaft, and the outer parts of the first rotating shaft and the second rotating shaft are respectively fixed and sleeved with a first pulley and a second pulley, so The outer sides of the first rotating shaft and the second rotating shaft are respectively fixed with a first fan blade and a second fan blade.

Optionally, there are two output ends of the asynchronous motor, one is fixedly sleeved with the first output shaft, and the other is fixedly sleeved with a second output shaft located on one side of the first output shaft, the first output shaft is A first pulley is movably connected to the outside through a belt, and a second pulley located on one side of the first pulley is movably connected to the outside of the second output shaft through a belt, and the rotation direction of the first output shaft is the same as that of the second output shaft. The direction of rotation is opposite, the first output shaft rotates in the forward direction, and the second output shaft rotates in the reverse direction.

Optionally, one side of the air inlet chamber is provided with an air storage chamber, and one side of the air storage chamber is provided with an air exhaust chamber, and the air inlet chamber, the air storage chamber and the air exhaust chamber are separated by a filter screen. , and the filter material is activated carbon adsorption layer.

Optionally, one end of the first rotating shaft is fixedly sleeved inside the bearing, one end of the second rotating shaft is also fixedly sleeved inside the other bearing, and the outside of the two bearings are fixedly connected to the fixed support rod. The outer ends of the first rotating shaft and the second pulley are respectively fixed and sleeved with the first pulley and the second pulley, and the outer ends of the first rotating shaft and the second rotating shaft are fixedly installed with the first pulley and the second pulley. fan blade and second fan blade.

Optionally, there are two waste liquid chambers, and the two waste liquid chambers are respectively fixedly installed below the first fan blade and the second fan blade.

Optionally, the interior of the cleaning agent cavity is filled with cleaning agent, the number of the cleaning agent cavity is two, and the two cleaning agent cavities are respectively arranged on the inner side of the first fan blade and the second fan blade, and the cleaning agent The top and bottom ends of the cavity are each provided with three atomizing nozzles.

The utility model provides a high-efficiency ventilation negative pressure fan, which has the following beneficial effects:

1. The high-efficiency ventilation negative pressure fan is provided with an air inlet chamber, an air storage chamber and an air exhaust chamber inside the fan chamber, and the first fan blade and the second fan blade inside the air inlet chamber and the air exhaust chamber are provided. It is movably connected with the positive and negative output shafts of the asynchronous motor respectively, and the asynchronous motor can be used to drive the first fan blade to rotate under positive pressure, so that the gas inside the air inlet chamber can be inhaled through the first fan blade and transmitted to the air inlet. The inside of the air storage chamber, and at the same time the second fan blade is driven by the other output shaft of the asynchronous motor to rotate under negative pressure, so that the gas inside the air storage chamber is discharged to the outside of the fan chamber through the exhaust chamber, thereby increasing the exhaust air. The efficiency of the negative pressure rotation of the second fan blade inside the chamber solves the problem of low negative pressure rotation efficiency of the existing device.

2. The high-efficiency ventilation negative pressure fan is provided with a cleaning agent cavity on the inner side of the first fan blade and the second fan blade, and an atomizing nozzle is fixedly installed on the outside of the cleaning agent cavity, and the first fan blade and the second fan blade are installed. When the two fan blades are working, the atomizing nozzle outside the cleaning agent chamber can spray the cleaning agent inside the cleaning agent chamber to the first fan blade and the atomizing nozzle head, and the first fan blade and the second fan blade are automatically cleaned and reused. A waste liquid chamber is provided below the first fan blade and the second fan blade, and the waste liquid chamber can be used to collect the waste liquid after cleaning, which increases the practicability of the device.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the utility model side view;

FIG. 3 is a schematic structural diagram of the first fan blade of the present invention viewed from the side.

In the figure: 1, outer frame; 2, first output shaft; 3, motor room; 4, fixed support rod; 5, first fan blade; 6, detergent cavity; 7, first pulley; 8, first Rotating shaft; 9. Fan chamber; 10. Filter screen; 11. Atomizing nozzle; 12. Waste liquid chamber; 13. Shutter; 14. Second rotating shaft; 15. Second pulley; 16. Second fan blade; 17. Belt; 18. Second output shaft; 19. Asynchronous motor; 20. Air inlet chamber; 21. Air storage chamber; 22. Air exhaust chamber.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. .

Please refer to FIG. 1 to FIG. 3, the present utility model provides a technical solution: a negative pressure fan with high efficiency ventilation, including an outer frame 1, and a motor chamber 3 and a fan chamber 9 are opened inside the outer frame 1 from top to bottom, The interior of the motor room 3 is provided with an asynchronous motor 19, the two ends of the asynchronous motor 19 are respectively provided with a first output shaft 2 and a second output shaft 18, and the outside of the first output shaft 2 and the second output shaft 18 are movably sleeved with The belt 17, the two sides of the fan chamber 9 are provided with shutters 13, the interior of the fan chamber 9 is sequentially provided with an air inlet chamber 20, an air storage chamber 21 and an exhaust chamber 22 from left to right. A waste liquid chamber 12 is fixedly installed, a fixed support rod 4 is arranged inside the fan chamber 9, a filter screen 10 is fixedly connected to the outside of the fixed support rod 4, and one end of the fixed support rod 4 is fixedly installed with a cleaning agent chamber 6. The cleaning agent chamber 6. The top is provided with an atomizing nozzle 11, the two ends of the fixed support rod 4 are respectively provided with a first rotating shaft 8 and a second rotating shaft 14, and the outside of the first rotating shaft 8 and the second rotating shaft 14 are respectively fixed and sleeved with a second rotating shaft. The outer side of the pulley 7 and the second pulley 15, the first rotating shaft 8 and the second rotating shaft 14 are respectively fixed with the first fan blade 5 and the second fan blade 16.

Among them, there are two output ends of the asynchronous motor 19 , one is fixedly sleeved with the first output shaft 2 , and the other is fixedly sleeved with the second output shaft 18 located on one side of the first output shaft 2 . The first pulley 7 is movably connected through the belt 17 , the second pulley 15 on the side of the first pulley 7 is movably connected to the outside of the second output shaft 18 through the belt 17 , and the rotation direction of the first output shaft 2 is the same as that of the first pulley 7 . The rotation direction of the second output shaft 18 is opposite, the first output shaft 2 rotates in the forward direction, and the second output shaft 18 rotates in the reverse direction. The gas outside the chamber 20 is sucked in and discharged into the air storage chamber 21, and the second output shaft 18 drives the second fan blade 16 to rotate under negative pressure, so that the gas inside the air storage chamber 21 is discharged from the outside of the exhaust chamber 22. The discharge, in addition, increases the ventilation efficiency of the device and increases the practicality of the device.

Among them, one side of the air inlet chamber 20 is provided with an air storage chamber 21, one side of the air storage chamber 21 is provided with an air exhaust chamber 22, and a filter screen 10 is used between the air inlet chamber 20, the air storage chamber 21 and the air exhaust chamber 22. Separate, and the material of the filter screen 10 is activated carbon adsorption layer, the first fan blade 5 inside the air inlet chamber 20 inhales the gas outside the air inlet chamber 20, and the second fan blade 16 inside the exhaust chamber 22 stores the air. The gas inside the chamber 21 is discharged from the outside of the exhaust chamber 22, thereby increasing the ventilation efficiency of the device, and the filter screen 10 can also adsorb and purify the passing gas.

One end of the first rotating shaft 8 is fixedly sleeved inside the bearing, one end of the second rotating shaft 14 is also fixedly sleeved inside another bearing, and the outside of the two bearings are fixedly connected to both ends of the fixed support rod 4 , the outer ends of the first rotating shaft 8 and the second pulley 15 are respectively fixed and sleeved with the first pulley 7 and the second pulley 15, and the outer ends of the first rotating shaft 8 and the second rotating shaft 14 are fixedly installed with the first pulley 7 and the second pulley 15. A fan blade 5 and a second fan blade 16, the first output shaft 2 and the second output shaft 18 drive the first rotating shaft 8 and the second rotating shaft 14 to rotate, and then drive the first rotating shaft 8 and the second rotating shaft 14 The first fan blade 5 and the second fan blade 16 at the outer end are rotated to achieve the effect of rotating the first fan blade 5 and the air storage chamber 21 in different directions respectively.

Among them, there are two waste liquid chambers 12 , and the two waste liquid chambers 12 are fixedly installed under the first fan blade 5 and the second fan blade 16 respectively, and the atomizing nozzle 11 outside the cleaning agent chamber 6 The first fan blade 5 and the second fan blade 16 are cleaned, and the waste liquid after the cleaning is dropped into the waste liquid chamber 12, so as to achieve the effect of automatically cleaning the first fan blade 5 and the second fan blade 16, so that the The utility of the device increases.

The interior of the cleaning agent chamber 6 is filled with cleaning agent, and the number of the cleaning agent chambers 6 is two. The top and bottom ends of 6 are each provided with three atomizing nozzles 11, and the multiple atomizing nozzles 11 can fully clean the first fan blade 5 and the second fan blade 16 with high efficiency, and the waste liquid after cleaning will be When the waste liquid falls inside the waste liquid chamber 12, the waste liquid inside the waste liquid chamber 12 is cleaned regularly, so that the first fan blade 5 and the second fan blade 16 can be automatically cleaned.

To sum up, when the high-efficiency ventilation negative pressure fan is in use, the asynchronous motor 19 is turned on, so that the first output shaft 2 on one side of the asynchronous motor 19 rotates in the forward direction, and the second output shaft on the other side of the asynchronous motor 19 is rotated. 18 performs reverse rotation, and drives the first fan blade 5 and the second fan blade 16 inside the air inlet chamber 20 and the exhaust chamber 22 to perform positive pressure rotation and negative pressure rotation respectively, and the positive pressure rotation of the first fan blade 5 The air outside the first fan blade 5 can be inhaled and transported to the inside of the air storage chamber 21 , and the negative pressure rotation of the second fan blade 16 can remove the gas inside the air storage chamber 21 from the outside of the exhaust chamber 22 . discharge, which increases the ventilation efficiency of the device for the gas. In addition, while the first fan blade 5 and the second fan blade 16 are working, the atomizing nozzle 11 outside the cleaning agent chamber 6 is directed to the first fan blade 5 and the second fan respectively. The blade 16 is sprayed with detergent, which can automatically clean the first fan blade 5 and the second fan blade 16 . Finally, the waste liquid in the two waste liquid chambers 12 below the first fan blade 5 and the second fan blade 16 is cleaned. You can deal with it accordingly.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. A negative pressure fan for efficient ventilation, comprising an outer frame (1), characterized in that: the interior of the outer frame (1) is provided with a motor chamber (3) and a fan chamber (9) from top to bottom, so that the The interior of the motor room (3) is provided with an asynchronous motor (19), and both ends of the asynchronous motor (19) are respectively provided with a first output shaft (2) and a second output shaft (18). The outside of the shaft (2) and the second output shaft (18) are movably sleeved with belts (17), the two sides of the fan chamber (9) are provided with shutters (13), and the interior of the fan chamber (9) An air inlet chamber (20), an air storage chamber (21) and an air exhaust chamber (22) are arranged in sequence from left to right, and waste liquid chambers (12) are fixedly installed on both sides of the bottom of the inner cavity of the fan chamber (9). , a fixed support rod (4) is arranged inside the fan chamber (9), a filter screen (10) is fixedly connected to the outside of the fixed support rod (4), and one end of the fixed support rod (4) is fixedly installed There is a cleaning agent cavity (6), the top of the cleaning agent cavity (6) is provided with an atomizing nozzle (11), and the two ends of the fixed support rod (4) are respectively provided with a first rotating shaft (8) and a second rotating shaft (8) A rotating shaft (14), a first pulley (7) and a second pulley (15) are respectively fixed and sleeved on the outside of the first rotating shaft (8) and the second rotating shaft (14). A first fan blade (5) and a second fan blade (16) are fixedly installed on the outer sides of the rotating shaft (8) and the second rotating shaft (14), respectively. 2. A kind of high-efficiency ventilation negative pressure fan according to claim 1, characterized in that: there are two output ends of the asynchronous motor (19), one is fixedly sleeved with the first output shaft (2), and the other is A fixed sleeve is provided with a second output shaft (18) located on one side of the first output shaft (2), and a first pulley (7) is movably connected to the outside of the first output shaft (2) through a belt (17), The outside of the second output shaft (18) is movably connected with a second pulley (15) on one side of the first pulley (7) through a belt (17), and the rotation direction of the first output shaft (2) is the same as that of the first pulley (7). The rotation direction of the second output shaft (18) is opposite, the first output shaft (2) rotates in the forward direction, and the second output shaft (18) rotates in the reverse direction. 3. The high-efficiency ventilation negative pressure fan according to claim 1, characterized in that: one side of the air inlet chamber (20) is provided with an air storage chamber (21), and one side of the air storage chamber (21) is provided with an air storage chamber (21). An exhaust chamber (22) is provided on the side, and the air inlet chamber (20), the air storage chamber (21) and the exhaust chamber (22) are separated by a filter screen (10), and the filter screen (10) The material is activated carbon adsorption layer. 4. The high-efficiency ventilation negative pressure fan according to claim 1, characterized in that: one end of the first rotating shaft (8) is fixedly sleeved inside the bearing, and the second rotating shaft (14) has a One end is also fixedly sleeved inside the other bearing, and the outer parts of the two bearings are fixedly connected to the two ends of the fixed support rod (4), the outer parts of the first rotating shaft (8) and the second pulley (15) The first pulley (7) and the second pulley (15) are fixedly sleeved respectively, and the outer ends of the first rotating shaft (8) and the second rotating shaft (14) are fixedly installed with the first fan blade (5) and the second fan blade (16). 5. The high-efficiency ventilation negative pressure fan according to claim 1, characterized in that: the number of the waste liquid chambers (12) is two, and the two waste liquid chambers (12) are fixedly installed on the first Below the first fan blade (5) and the second fan blade (16). The high-efficiency ventilation negative pressure fan according to claim 1, characterized in that: the interior of the cleaning agent chamber (6) is filled with cleaning agent, and the number of the cleaning agent chamber (6) is two , the two cleaning agent chambers (6) are respectively arranged on the inner side of the first fan blade (5) and the second fan blade (16), and the top and bottom ends of the cleaning agent chamber (6) are respectively provided with three atomizing nozzles (11).

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