Centrifugal ventilator

Abstract

The utility model provides a centrifugal ventilator, and relates to the technical field of centrifugal ventilators, the centrifugal ventilator comprises a ventilator, a cleaning device is arranged on the side face of the ventilator, a driver is fixedly connected to the side face of the ventilator, the output end of the driver is fixedly connected with an impeller, and the impeller is fixedly connected with a motor. A cleaning device is arranged at an air outlet of the ventilator and comprises a rectangular frame fixedly connected to the side face of the ventilator, a rectangular groove is formed in the inner wall of the rectangular frame, a threaded rod is rotationally connected into the rectangular groove, and a motor is fixedly connected to the upper top of the rectangular frame. The output end of the motor is fixedly connected with a threaded rod, the surface of the threaded rod is in threaded connection with a sliding block, the side face of the sliding block is rotationally connected with a protection frame, a protection net is arranged in the protection frame, and the interior of the rectangular groove is fixedly connected with a fixing rod; the utility model solves the problem that the air inlet quantity of the ventilator becomes small after the protective net is blocked by large-particle impurities.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to a centrifugal fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. When exhausting waste gas, the fan is installed at the location where exhaust is required. After installation, start the fan to exhaust.

[0003] The inventor discovered during daily use of the ventilator that due to the provision of a protective net at the air inlet of the ventilator, some large particles of impurities would be blocked outside when the ventilator was in use. When too many impurities were blocked on the surface of the protective net, the air intake of the protective net would become smaller, thereby affecting the use of the ventilator and causing problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a centrifugal fan.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a centrifugal fan, comprising a fan, a cleaning device is arranged on the side of the fan, a driving machine is fixedly connected to the side of the fan, an impeller is fixedly connected to the output end of the driving machine, a purification device is arranged at the air outlet of the fan, the cleaning device comprises a rectangular frame fixedly connected to the side of the fan, a rectangular groove is provided on the inner wall of the rectangular frame, a threaded rod is rotatably connected to the inside of the rectangular groove, a motor is fixedly connected to the upper top of the rectangular frame, a threaded rod is fixedly connected to the output end of the motor, a slider is threadedly connected to the surface of the threaded rod, a protective frame is rotatably connected to the side of the slider, and a protective net is arranged inside the protective frame.

[0006] The effect achieved by the above components is: under the action of the motor, the slider can move up and down, so that the protective frame can be folded, so that the protective frames collide with each other, and then the impurities in the mesh of the protective net are shaken out. When using the ventilator, connect the air inlet of the ventilator to the position where the exhaust gas is to be discharged, start the ventilator, so that the exhaust gas can be quickly discharged through the ventilator.

[0007] Preferably, a fixing rod is fixedly connected to the inside of the rectangular groove, and a sliding block is slidably connected to the surface of the fixing rod.

[0008] The effect achieved by the above components is that under the action of the fixing rod, the slider will not shake left and right when moving up and down, thereby achieving the effect of stabilizing the slider.

[0009] Preferably, one end of the protection frame is fixedly connected to a hinge, and the other end of the hinge is fixedly connected to the protection frame.

[0010] The effect achieved by the above components is: under the action of the hinge, the protection frame can be folded, and then the protection frame can be folded and collided, so that the impurities inside the mesh are shaken out.

[0011] Preferably, a groove is provided on the side of the protection frame, a round rod is rotatably connected inside the groove, a rectangular block is fixedly connected to the surface of the round rod, and a clamping rod is inserted at one end of the round rod.

[0012] The effect achieved by the above components is that under the action of the clamping rod, after the protective net is fixed inside the protective frame by the rectangular block, the round rod can be fixed, thereby achieving the fixing effect.

[0013] Preferably, a rubber ring is fixedly connected to the inside of the protection frame, and the rubber ring is arranged between the protection net and the protection frame.

[0014] The effects achieved by the above components are: under the action of the rubber ring, the protective net will not directly contact the protective frame, avoiding the phenomenon of rigid contact. When the protective net fixed on the surface of the protective frame needs to be cleaned, the motor is started to make the slider move relatively. Under the action of the hinge, the protective frame can be folded and collided together, so that the impurities in the dustproof net mesh are shaken out. When there are too many impurities inside the mesh and cannot be cleaned, the round rod is rotated to make the rectangular block return to the inside of the groove body, so that the protective net can be replaced. Under the action of the rubber ring, the protective net will not directly contact the protective frame, avoiding the phenomenon of rigid contact. After the protective net is installed inside the protective frame, the round rod is rotated so that the rectangular block squeezes the protective net, so that the protective net is fixed inside the protective frame. Under the action of the clamping rod, after the protective net is fixed inside the protective frame by the rectangular block, the round rod can be fixed, thereby achieving the fixing effect, thereby achieving the cleaning effect.

[0015] Preferably, the purification device includes a baffle fixedly connected to the inside of the air outlet, a purification bag is arranged on the side of the baffle, the interior of the purification bag is filled with sodium hydroxide, a groove is opened on the inner wall of the air outlet, a screw is rotatably connected to the inside of the groove, and a clamping plate is threadedly connected to the surface of the screw.

[0016] The effect achieved by the above components is that under the action of the purification bag, harmful substances such as sulfur dioxide in the exhaust gas can be purified, thereby achieving the purification effect.

[0017] Preferably, a sponge block is provided on the side of the purification bag, and the clamping plate is closely attached to the side of the sponge block.

[0018] The effect achieved by the above components is that under the action of the sponge block, the colored smoke in the exhaust gas can be adsorbed on the surface of the sponge block, thereby preventing the colored smoke from flying out of the ventilator.

[0019] Preferably, a limiting rod is fixedly connected to the interior of the groove, and a clamping plate is slidably connected to the surface of the limiting rod.

[0020] The effect achieved by the above components is: under the action of the limit rod, the card plate will not shake. When it is necessary to purify the exhaust gas, the purification bag is placed on the side of the baffle and the sponge block is placed close to the purification bag. Then, the screw is turned to move the card plate toward the sponge block, thereby better placing the sponge block and the purification bag inside the air outlet, thereby achieving the effect of purifying the exhaust gas.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, by arranging a cleaning device, when it is necessary to clean the protective net fixed on the surface of the protective frame, the motor is started to make the slider move relatively, and under the action of the hinge, the protective frame can be folded and collided together, so that the impurities in the mesh of the dustproof net are shaken out, and when there are too many impurities inside the mesh that cannot be cleaned, the round rod is rotated to make the rectangular block return to the inside of the groove body, so that the protective net is replaced, and under the action of the rubber ring, the protective net will not directly contact the protective frame, avoiding the phenomenon of rigid contact, and when the protective net is installed inside the protective frame, the round rod is rotated to make the rectangular block squeeze the protective net, so that the protective net is fixed inside the protective frame, and under the action of the clamping rod, the protective net is fixed inside the protective frame by the rectangular block, and the round rod can be fixed, so as to achieve the fixing effect, thereby achieving the cleaning effect, thereby solving the problem of reduced air intake of the ventilator after large particles of impurities block the protective net. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional structural schematic diagram of a centrifugal fan is proposed for the utility model;

[0024] Figure 2 A schematic diagram of a cleaning device for a centrifugal fan is provided for the utility model;

[0025] Figure 3 A partial schematic diagram of a cleaning device for a centrifugal fan proposed by the utility model;

[0026] Figure 4 The utility model provides a schematic diagram of a purification device of a centrifugal fan.

[0027] Legend: 1. Fan; 2. Cleaning device; 21. Rectangular frame; 22. Rectangular groove; 23. Motor; 24. Threaded rod; 25. Slider; 26. Protective frame; 27. Fixed rod; 28. Groove body; 29. ​​Round rod; 210. Clamping rod; 3. Purification device; 31. Baffle; 32. Purification bag; 33. Sponge block; 34. Screw; 35. Groove; 36. Limiting rod; 37. Clamping plate; 4. Impeller. DETAILED DESCRIPTION

[0028] Embodiment 1, as Figure 1-4 As shown, a centrifugal fan 1 includes a fan 1, a cleaning device 2 is arranged on the side of the fan 1, a driving machine is fixedly connected to the side of the fan 1, an impeller 4 is fixedly connected to the output end of the driving machine, and a purification device 3 is arranged at the air outlet of the fan 1. When the fan 1 is used, the air inlet of the fan 1 is connected to the position where the exhaust gas is to be discharged, and the fan 1 is started so that the exhaust gas can be quickly discharged through the fan 1.

[0029] Reference Figure 2-3The cleaning device 2 includes a rectangular frame 21 fixedly connected to the side of the ventilator 1, and the inner wall of the rectangular frame 21 is provided with a rectangular groove 22, and the inner part of the rectangular groove 22 is rotatably connected with a threaded rod 24, and the upper top of the rectangular frame 21 is fixedly connected with a motor 23, and the output end of the motor 23 is fixedly connected with a threaded rod 24, and the surface of the threaded rod 24 is threadedly connected with a slider 25, and the side of the slider 25 is rotatably connected with a protective frame 26, and a protective net is arranged inside the protective frame 26. Under the action of the motor 23, the slider 25 can move up and down, so that the protective frame 26 can be folded, so that the protective frames 26 collide with each other, and then the impurities in the mesh of the protective net are shaken out. When the ventilator 1 is in use, the ventilator 1 The air inlet is connected to the position where the exhaust gas is to be discharged, and the ventilator 1 is started so that the exhaust gas can be quickly discharged through the ventilator 1. The interior of the rectangular groove 22 is fixedly connected with a fixing rod 27, and the surface of the fixing rod 27 is slidably connected with a slider 25. Under the action of the fixing rod 27, the slider 25 will not shake left and right when moving up and down, thereby achieving the effect of stabilizing the slider 25. One end of the protective frame 26 is fixedly connected with a hinge, and the other end of the hinge is fixedly connected with a protective frame 26. Under the action of the hinge, the protective frame 26 can be folded, and then the protective frame 26 can be folded and collided, so that the impurities inside the mesh are shaken out. The side of the protective frame 26 is provided with a groove body 28. The inside of the groove body 28 is rotatably connected with a round rod 29, and the surface of the round rod 29 is fixedly connected with a rectangular block. A clamping rod 210 is inserted at one end of the round rod 29. Under the action of the clamping rod 210, after the protective net is fixed inside the protective frame 26 by the rectangular block, the round rod 29 can be fixed, thereby achieving the fixing effect. The inside of the protective frame 26 is fixedly connected with a rubber ring, and the rubber ring is arranged between the protective net and the protective frame 26. Under the action of the rubber ring, the protective net will not directly contact the protective frame 26, avoiding the phenomenon of rigid contact. When it is necessary to clean the protective net fixed on the surface of the protective frame 26, the motor 23 is started to make the slider 25 move relatively, and under the action of the hinge, the protective frame 26 The two parts can be folded and collided together, so that the impurities in the dustproof net mesh are shaken out. When there are too many impurities in the mesh and cannot be cleaned up, the round rod 29 is rotated to make the rectangular block return to the inside of the groove body 28, so that the protective net can be replaced. Under the action of the rubber ring, the protective net will not directly contact the protective frame 26, avoiding the phenomenon of rigid contact. When the protective net is installed inside the protective frame 26, the round rod 29 is rotated to make the rectangular block squeeze the protective net, so that the protective net is fixed inside the protective frame 26. Under the action of the clamping rod 210, after the protective net is fixed inside the protective frame 26 by the rectangular block, the round rod 29 can be fixed, thereby achieving the fixing effect, thereby achieving the cleaning effect.

[0030] Reference Figure 4The purification device 3 includes a baffle 31 fixedly connected to the inside of the air outlet, a purification bag 32 is arranged on the side of the baffle 31, and sodium hydroxide is filled in the purification bag 32. A groove 35 is opened on the inner wall of the air outlet, and a screw 34 is rotatably connected to the inside of the groove 35. A clamping plate 37 is threadedly connected to the surface of the screw 34. Under the action of the purification bag 32, harmful substances such as sulfur dioxide in the exhaust gas can be purified, thereby achieving the purification effect. A sponge block 33 is arranged on the side of the purification bag 32, and the clamping plate 37 is tightly attached to the side of the sponge block 33. Under the action of the sponge block 33, the colored smoke in the exhaust gas can be In order to adsorb on the surface of the sponge block 33, thereby preventing colored smoke from flying out of the ventilator 1, the interior of the groove 35 is fixedly connected to a limit rod 36, and the surface of the limit rod 36 is slidably connected to a clamping plate 37. Under the action of the limit rod 36, the clamping plate 37 will not shake. When it is necessary to purify the exhaust gas, the purification bag 32 is placed on the side of the baffle 31 to place the sponge block 33 close to the purification bag 32. Then, the screw 34 is rotated to move the clamping plate 37 toward the sponge block 33, so that the sponge block 33 and the purification bag 32 are better placed inside the air outlet, thereby achieving the effect of purifying the exhaust gas.

[0031] Working principle: when the centrifugal fan 1 is needed, the air inlet of the fan 1 is connected to the position where the exhaust gas is to be discharged, and the fan 1 is started, so that the exhaust gas can be quickly discharged through the fan 1. When the protective net fixed on the surface of the protective frame 26 needs to be cleaned, the motor 23 is started to make the slider 25 move relatively. Under the action of the hinge, the protective frame 26 can be folded and collided together, so that the impurities in the dustproof net mesh are shaken out. When there are too many impurities in the mesh that cannot be cleaned, the round rod 29 is rotated to make the rectangular block return to the inside of the slot 28, so that the protective net can be replaced. Under the action of the rubber ring, the protective net will not directly contact the protective frame 26. The phenomenon of rigid contact is avoided. When the protective net is installed inside the protective frame 26, the round rod 29 is rotated to make the rectangular block squeeze the protective net, so that the protective net is fixed inside the protective frame 26. Under the action of the clamping rod 210, after the protective net is fixed inside the protective frame 26 by the rectangular block, the round rod 29 can be fixed, thereby achieving the fixing effect, thereby achieving the cleaning effect. When it is necessary to purify the exhaust gas, the purification bag 32 is placed on the side of the baffle 31 and the sponge block 33 is placed close to the purification bag 32. After completion, the screw 34 is rotated to make the clamping plate 37 move toward the direction of the sponge block 33, thereby better placing the sponge block 33 and the purification bag 32 inside the air outlet, thereby achieving the effect of purifying the exhaust gas.

Claims

1. A centrifugal fan, comprising a fan (1), characterized in that: A cleaning device (2) is provided on the side of the ventilator (1), a driving machine is fixedly connected to the side of the ventilator (1), an impeller (4) is fixedly connected to the output end of the driving machine, a purification device (3) is provided at the air outlet of the ventilator (1), the cleaning device (2) comprises a rectangular frame (21) fixedly connected to the side of the ventilator (1), a rectangular groove (22) is provided on the inner wall of the rectangular frame (21), a threaded rod (24) is rotatably connected inside the rectangular groove (22), a motor (23) is fixedly connected to the upper top of the rectangular frame (21), a threaded rod (24) is fixedly connected to the output end of the motor (23), a slider (25) is threadedly connected to the surface of the threaded rod (24), a protective frame (26) is rotatably connected to the side of the slider (25), and a protective net is provided inside the protective frame (26).

2. The centrifugal fan according to claim 1, characterized in that: A fixing rod (27) is fixedly connected inside the rectangular groove (22), and a sliding block (25) is slidably connected to the surface of the fixing rod (27).

3. The centrifugal fan according to claim 2, characterized in that: One end of the protection frame (26) is fixedly connected to a hinge, and the other end of the hinge is fixedly connected to the protection frame (26).

4. The centrifugal fan according to claim 3, characterized in that: A groove body (28) is provided on the side of the protection frame (26), a round rod (29) is rotatably connected inside the groove body (28), a rectangular block is fixedly connected to the surface of the round rod (29), and a clamping rod (210) is inserted at one end of the round rod (29).

5. The centrifugal fan according to claim 4, characterized in that: A rubber ring is fixedly connected to the interior of the protection frame (26), and the rubber ring is arranged between the protection net and the protection frame (26).

6. The centrifugal fan according to claim 5, characterized in that: The purification device (3) comprises a baffle (31) fixedly connected to the inside of the air outlet, a purification bag (32) is arranged on the side of the baffle (31), and the purification bag (32) is filled with sodium hydroxide. The inner wall of the air outlet is provided with a groove (35), the inside of the groove (35) is rotatably connected to a screw (34), and the surface of the screw (34) is threadedly connected to a clamping plate (37).

7. The centrifugal fan according to claim 6, characterized in that: A sponge block (33) is arranged on the side of the purification bag (32), and the clamping plate (37) is closely attached to the side of the sponge block (33).

8. The centrifugal fan according to claim 7, characterized in that: A limiting rod (36) is fixedly connected inside the groove (35), and a clamping plate (37) is slidably connected to the surface of the limiting rod (36).

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