Energy-saving building fan

Abstract

The invention relates to the technical field of building fans, and discloses an energy-saving building fan which comprises a machine shell, a support is fixedly connected to the circumferential face of the machine shell, a fixed supporting rod is fixedly connected to the inner wall of the machine shell, a motor is fixedly connected to the side, away from the machine shell, of the fixed supporting rod, and a rotating shaft is fixedly connected to the output end of the motor. After the fan is placed, a worker switches on a power supply to start the motor to start to operate to drive a brush head to rotate to be in contact with a filter plate for scraping and brushing off dust, so that the dust is prevented from being accumulated in filter holes of the filter plate, and the blowing effect of the fan is improved; the service life of the equipment is prolonged, and when the filter plate is brushed, the rotating rod rotates to drive the filter plate to vibrate so as to vibrate off dust on the surface, so that the air circulation effect is better, and the filtering effect is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of building fans, and in particular to an energy-saving building fan. Background Art

[0002] During the construction process, the building needs to be continuously cooled by air to prevent uneven stress inside the building. Therefore, energy-saving fans are needed to dissipate heat and reduce dust. The promotion of energy-saving building fans will help reduce carbon emissions during the operation of the building and meet environmental protection requirements.

[0003] Patent application number 201822208053.9 relates to an energy-saving building fan, which particularly includes a base, wherein the upper end of the base is rotatably connected to a support tube with an opening at the upper end through a ball bearing, the outer wall of the support tube close to the bottom end is fixedly sleeved with a gear, a lifting rod is slidably engaged in the support tube, the upper end of the lifting rod is fixedly connected to a fan, and the rod wall at one end of the lifting rod located in the support tube is symmetrically provided with two cylindrical grooves, a thrust spring is arranged in the cylindrical groove, and one end of the thrust spring is fixedly connected to the bottom of the cylindrical groove. The other end of the thrust spring is fixedly connected to the limit rod, and the wall of the support cylinder is evenly provided with a plurality of limit rods corresponding to the limit rod. This patent improves the heat dissipation efficiency and can adjust the relative height of the fan, making it convenient for people to carry and move the fan. However, this device does not filter the air inlet, and a large amount of dust will be generated when the fan is working, which reduces the air quality and affects the health of the staff. It also increases the maintenance cost of the fan and reduces the service life of the fan. Therefore, an energy-saving building fan is proposed to solve the above-mentioned problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an energy-saving building fan in view of the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: an energy-saving building fan, comprising a casing, a circumferential surface of the casing is fixedly connected with a bracket, an inner wall of the casing is fixedly connected with a fixed support rod, a side of the fixed support rod away from the casing is fixedly connected with a motor, an output end of the motor is fixedly connected with a rotating shaft, an end of the rotating shaft away from the motor is fixedly connected with a fan, and the inner wall of the casing is fixedly connected with a protective frame; an ash filtering mechanism is provided on the inner wall of the casing, a dust reduction mechanism is provided on the inner wall of the casing, and a recycling mechanism is provided on the inner wall of the casing; the ash filtering mechanism comprises a slider 1, a fixed rod 1, a rotating rod, a brush head, a filter plate, a protrusion 1, a slider 2, a limit block and a protrusion 2, the slider 1 is slidably connected to the inner wall of the rotating shaft, the outer surface of the fixed rod 1 contacts the outer surface of the slider 1, the rotating rod is fixedly connected to the left side of the fixed rod 1, and the brush head is fixedly connected to On the left side of the rotating rod, the protrusion one is fixedly connected to the left side of the rotating rod, the circumferential surface of the protrusion two is in contact with the circumferential surface of the protrusion one, the filter plate is fixedly connected to the side of the protrusion two away from the protrusion one, the limit block is fixedly connected to the left end of the filter plate by a spring, and the slider two is fixedly connected to the two ends of the rotating rod. When the fan is placed, the worker turns on the power to start the motor to start running and drives the brush head to rotate and contact the filter plate to scrape and brush off the dust, thereby preventing dust from accumulating in the filter holes of the filter plate, improving the blowing effect of the fan and extending the service life of the equipment. While cleaning the filter plate, the rotating rod rotates to drive the filter plate to vibrate and shake off the surface dust, so that the air circulation effect is better and the filtering effect is enhanced. The outer surface of the slider two is slidably connected to the inner wall of the casing, the limit block is fixedly connected to the inner wall of the casing, the left side of the brush head contacts the filter plate, and the filter plate is slidably connected to the inner wall of the casing; Preferably, the dust reduction mechanism includes a water tank, a water pump, a guide pipe, an annular water pipe, a humidifying nozzle and a water inlet, the water tank is fixedly connected to the circumferential surface of the casing, the water pump is fixedly connected to the front side of the water tank, the guide pipe is fixedly installed at the output end of the water pump, the water inlet is provided on the inner wall of the casing, the annular water pipe is rotatably connected to the inner wall of the casing, and the humidifying nozzle is fixedly connected to the inner wall of the annular water pipe; the dust reduction mechanism also includes an annular guide plate, a guide block and a second fixing rod, the annular guide plate is fixedly connected to the right end of the annular water pipe, the inner wall of the annular guide plate is provided with a slide groove, the guide block is slidably connected to the inner wall slide groove of the annular guide plate, and the second fixing rod is fixedly connected to the guide block away from the annular shaped guide plate; while the fan is working, the water pump can be started by the control button to spray out through the humidifying nozzle, and at the same time the fan blows out water to reduce the dust in the air, preventing the dust on the construction site from flying around and being inhaled by workers to cause harm to people, thereby improving safety, and can also provide a relatively humid storage environment for buildings, reduce damage caused by dryness, and extend their service life. While humidifying, the filter plate moves to drive the humidifying nozzle to rotate and spray, thereby increasing the spraying area, making the dust reduction effect better, enhancing the humidification effect, and improving the working efficiency of the fan. The end of the guide pipe away from the water pump is fixedly installed on the inner wall of the casing, and the fixing rod 2 is fixedly connected to the left end of the filter plate.

[0006] Preferably, the recycling mechanism includes a baffle, a collection box, a slider three, a pressure plate one, an L-shaped connecting rod, a pressure plate two, a push rod and a cleaning port, the baffle is fixedly connected to the inner wall of the casing, the cleaning port is opened on the inner wall of the casing, the top of the slider three is in contact with the slider two, the pressure plate one is fixedly connected to both sides of the slider three, the L-shaped connecting rod is in contact with the bottom inclined surface of the slider three, the pressure plate two is fixedly connected to the left side of the L-shaped connecting rod, the push rod is fixedly connected to the side of the L-shaped connecting rod away from the slider three, and the inner wall of the collection box is in contact with the bottom of the push rod; after the filter plate is cleaned, a part below the baffle is used to block the dust from leaving Centrifugal force drops the dust into the collection box through the cleaning port, preventing dust from accumulating inside the fan and affecting the internal parts of the fan, thereby increasing the service life of the fan and improving the exhaust effect. While collecting the dust, the rotation of slider 2 drives the water outlet to indirectly flow water through the water tank into the collection box to prevent dust from flying around. At the same time, the L-shaped connecting rod pushes the dust settled in the collection box to both sides, increasing the collection space, making the dust collection effect better and enhancing work efficiency. The collection box is fixedly connected to the circumferential surface of the casing, the outer surface of the slider three is slidably connected to the inner wall of the casing, and the L-shaped connecting rod is slidably connected to the inner wall of the collection box.

[0007] The present invention adopts the above technical solution to bring the following beneficial effects: 1. This energy-saving building fan operates through the cooperation between a slider 1, a fixed rod 1, a rotating rod, a brush head, a filter plate, a protrusion 1, a slider 2, a limit block and a protrusion 2. After the fan is placed, the worker turns on the power to start the motor to drive the brush head to rotate and contact the filter plate to scrape and brush off the dust, preventing dust from accumulating in the filter holes of the filter plate, thereby improving the blowing effect of the fan and extending the service life of the equipment. While the filter plate is being cleaned, the rotating rod rotates to drive the filter plate to vibrate and shake off the surface dust, thereby improving the air circulation effect and enhancing the filtering effect.

[0008] 2. This energy-saving building fan works through the coordinated operation of a water tank, a water pump, a guide pipe, a circular water pipe, a humidifying nozzle, a guide plate, a guide block, a fixed rod and a water inlet. While the fan is working, the water pump can be started by a control button to spray out through the humidifying nozzle. At the same time, the fan blows out water to reduce dust in the air, preventing dust on the construction site from flying around and being inhaled by workers to cause harm, thereby improving safety. It can also provide a relatively humid storage environment for buildings, reduce damage caused by dryness, and extend their service life. While humidifying, the filter plate moves to drive the humidifying nozzle to rotate and spray, thereby increasing the spraying area, making the dust reduction effect better, enhancing the humidification effect, and improving the working efficiency of the fan.

[0009] 3. This energy-saving building fan cooperates with the baffle, collection box, slider three, pressure plate one, L-shaped connecting rod, pressure plate two, push rod and cleaning port to operate. After the filter plate is cleaned, a part under the baffle is blocked to allow dust to escape from centrifugal force and fall into the collection box through the cleaning port, thereby preventing dust from accumulating inside the fan and affecting the internal parts of the fan, thereby increasing the service life of the fan and making the exhaust effect better. While collecting dust, the rotation of slider two drives water from the water outlet to indirectly flow into the collection box through the water tank to prevent dust from flying around. At the same time, the L-shaped connecting rod pushes the dust settled in the collection box to both sides, thereby increasing the collection space, making the dust collection effect better and enhancing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the casing structure of the present invention; Figure 3 This is a schematic diagram of the brush head structure of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure in the middle; Figure 5 This is a schematic diagram of the structure of the humidifying nozzle of the present invention; Figure 6 For the present invention Figure 5Middle B is an enlarged schematic diagram of the structure; Figure 7 This is a schematic diagram of the structure of the collecting box of the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the C structure in the middle.

[0011] In the figure: 1, housing; 2, bracket; 3, fixed support rod; 4, motor; 5, rotating shaft; 6, fan; 7, dust filter mechanism; 701, slider 1; 702, fixed rod 1; 703, rotating rod; 704, brush head; 705, filter plate; 706, bump 1; 707, slider 2; 708, limit block; 709, bump 2; 8, dust suppression mechanism; 801, water tank; 802, water pump; 80 3. Guide pipe; 804. Annular water pipe; 805. Humidifier nozzle; 806. Annular guide plate; 807. Guide block; 808. Fixed rod 2; 809. Water inlet; 9. Recovery mechanism; 901. Baffle; 902. Collection box; 903. Slider 3; 904. Press plate 1; 905. L-shaped connecting rod; 906. Press plate 2; 907. Push rod; 908. Ash cleaning port; 10. Protective frame. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] See also Figure 1-Figure 8An embodiment of the present invention is: an energy-saving building fan, comprising a casing 1, a bracket 2 is fixedly connected to the circumferential surface of the casing 1, a fixed support rod 3 is fixedly connected to the inner wall of the casing 1, a motor 4 is fixedly connected to the fixed support rod 3 on the side away from the casing 1, a rotating shaft 5 is fixedly connected to the output end of the motor 4, a fan 6 is fixedly connected to the end of the rotating shaft 5 away from the motor 4, and a protective frame 10 is fixedly connected to the inner wall of the casing 1; an ash filtering mechanism 7 is provided on the inner wall of the casing 1, a dust reduction mechanism 8 is provided on the inner wall of the casing 1, and a recycling mechanism 9 is provided on the inner wall of the casing 1; the ash filtering mechanism 7 includes a slider 701, a fixed rod 702, a rotating rod 703, a brush head 704, and a filter plate 70 5. Bump 1 706, slider 2 707, limit block 708 and bump 2 709, slider 1 701 is slidably connected to the inner wall of the rotating shaft 5, the outer surface of the fixed rod 1 702 contacts the outer surface of the slider 1 701, the rotating rod 703 is fixedly connected to the left side of the fixed rod 1 702, the brush head 704 is fixedly connected to the left side of the rotating rod 703, the bump 1 706 is fixedly connected to the left side of the rotating rod 703, the circumferential surface of the bump 2 709 contacts the circumferential surface of the bump 1 706, the filter plate 705 is fixedly connected to the side of the bump 2 709 away from the bump 1 706, when the fan is placed, the worker turns on the power to start the motor 4 to start running, and the motor 4 drives the rotating shaft 5 The rotating shaft 5 drives the fan 6 to rotate. When the fan 6 starts to exhaust air, the rotating shaft 5 rotates and drives the slider 701 to rotate. When the slider 701 moves the outer surface of the fixed rod 702 to contact and drive the fixed rod 702 to rotate, the fixed rod 702 rotates and drives the rotating rod 703 to rotate. The rotating rod 703 drives the brush head 704 to rotate and contact the filter plate 705 to scrape and brush off the dust. At the same time, under the action of centrifugal force, the slider 701 slowly moves to break away from the contact with the fixed rod 702, stops cleaning the filter plate 705, and prevents dust from accumulating in the filter holes of the filter plate 705, thereby improving the blowing effect of the fan and extending the service life of the equipment. 8 is fixedly connected to the left end of the filter plate 705 through a spring, and the second slider 707 is fixedly connected to the two ends of the rotating rod 703. While cleaning the filter plate 705, the rotating rod 703 drives the protrusion 1 706 to rotate, and the rotating circumferential surface of the protrusion 1 706 contacts with the second protrusion 709 to drive the second protrusion 709 to move, and the second protrusion 709 drives the filter plate 705 to vibrate and shake off the surface dust, so that the air circulation effect is better and the filtering effect is enhanced. The outer surface of the second slider 707 is slidably connected to the inner wall of the casing 1, and the limit block 708 is fixedly connected to the inner wall of the casing 1. The left side of the brush head 704 contacts the filter plate 705, and the filter plate 705 is slidably connected to the inner wall of the casing 1; The dust suppression mechanism 8 includes a water tank 801, a water pump 802, a guide pipe 803, an annular water pipe 804, a humidifying nozzle 805 and a water inlet 809. The water tank 801 is fixedly connected to the circumferential surface of the housing 1, the water pump 802 is fixedly connected to the front side of the water tank 801, the guide pipe 803 is fixedly installed at the output end of the water pump 802, the water inlet 809 is opened on the inner wall of the housing 1, the annular water pipe 804 is rotatably connected to the inner wall of the housing 1, and the humidifying nozzle 805 is fixedly connected to the inner wall of the annular water pipe 804; while the fan is working The water pump 802 can be started by a control button, the water pump 802 brings the water from the water tank 801 into the guide pipe 803, the guide pipe 803 brings the water into the annular water pipe 804 through the water inlet 809, the water is sprayed out through the humidifying nozzle 805 in the annular water pipe 804, and the fan 6 blows out the water to reduce the dust in the air, preventing the dust on the construction site from flying around and being inhaled by the workers to cause harm to people, thereby improving safety and providing a relatively humid storage environment for the building, reducing damage caused by dryness. bad, prolonging their service life, the dust reduction mechanism 8 also includes an annular guide plate 806, a guide block 807 and a second fixed rod 808, the annular guide plate 806 is fixedly connected to the right end of the annular water pipe 804, the inner wall of the annular guide plate 806 is provided with a slide groove, the guide block 807 is slidably connected to the inner wall slide groove of the annular guide plate 806, and the second fixed rod 808 is fixedly connected to the side of the guide block 807 away from the annular guide plate 806; while humidifying, the filter plate 705 moves to drive the second fixed rod 808 to move, and the second fixed rod 80 8 moves to drive the guide block 807 to move, the guide block 807 contacts the inner wall groove of the annular guide plate 806 to drive the annular guide plate 806 to rotate, the annular guide plate 806 drives the annular water pipe 804 to rotate, the annular water pipe 804 drives the humidification nozzle 805 to rotate and spray, thereby increasing the spraying area, making the dust reduction effect better, enhancing the humidification effect, and improving the working efficiency of the fan. The end of the guide pipe 803 away from the water pump 802 is fixedly installed on the inner wall of the casing 1, and the fixing rod 808 is fixedly connected to the left end of the filter plate 705.

[0014] Working principle: After the fan is placed, the worker turns on the power to start the motor 4 to start running, the motor 4 drives the shaft 5 to rotate, the shaft 5 drives the fan 6 to rotate, and when the fan 6 starts to exhaust air, the shaft 5 rotates to drive the slider 701 to rotate, when the slider 701 moves the outer surface of the fixed rod 702 to contact and drive the fixed rod 702 to rotate, the fixed rod 702 rotates and drives the rotating rod 703 to rotate, the rotating rod 703 drives the brush head 704 to rotate and contact the filter plate 705 to scrape and brush off the dust, and at the same time, under the action of centrifugal force, the slider The first 701 moves slowly to disengage from the contact with the fixed rod 1 702, and stops cleaning the filter plate 705, preventing dust from accumulating in the filter holes of the filter plate 705, thereby improving the blowing effect of the fan and extending the service life of the equipment. While cleaning the filter plate 705, the rotating rod 703 rotates to drive the first convex block 706 to rotate, and the rotating circumferential surface of the first convex block 706 contacts the second convex block 709 to drive the second convex block 709 to move, and the second convex block 709 drives the filter plate 705 to vibrate to shake off the dust on the surface, so that the air circulation effect is better and the filtering effect is enhanced; When the fan is working, the water pump 802 can be started by the control button, and the water pump 802 brings the water in the water tank 801 into the guide pipe 803, and the guide pipe 803 brings the water to the annular water pipe 804 through the water inlet 809, and the water is sprayed out through the humidifying nozzle 805 in the annular water pipe 804. At the same time, the fan 6 blows out the water to reduce the dust in the air, preventing the dust on the construction site from flying around and being inhaled by the workers to cause harm to people, thereby improving safety and providing a relatively humid storage environment for the building, reducing the risk of dust. The damage caused by drying is avoided, and their service life is extended. During humidification, the filter plate 705 moves to drive the fixed rod 808 to move, and the fixed rod 808 moves to drive the guide block 807 to move. The guide block 807 contacts the inner wall groove of the annular guide plate 806 to drive the annular guide plate 806 to rotate, and the annular guide plate 806 drives the annular water pipe 804 to rotate, and the annular water pipe 804 drives the humidification nozzle 805 to rotate and spray, thereby increasing the spraying area, making the dust reduction effect better, enhancing the humidification effect, and improving the working efficiency of the fan.

[0015] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the recovery mechanism 9 includes a baffle 901, a collection box 902, a slider three 903, a pressure plate one 904, an L-shaped connecting rod 905, a pressure plate two 906, a push rod 907 and a cleaning port 908. The baffle 901 is fixedly connected to the inner wall of the casing 1, and the cleaning port 908 is opened on the inner wall of the casing 1. After the filter plate 705 is cleaned, a part below the baffle 901 is blocked to allow the dust to escape from the centrifugal force and fall into the collection box 902 through the cleaning port 908, thereby preventing the dust from accumulating inside the fan and affecting the internal parts of the fan, thereby improving the service life of the fan and making the exhaust effect better. The top of the slider three 903 contacts the slider two 707, the pressure plate one 904 is fixedly connected to both sides of the slider three 903, and the L-shaped connecting rod 905 contacts the bottom inclined surface of the slider three 903. The pressure plate 906 is fixedly connected to the left side of the L-shaped connecting rod 905, and the push rod 907 is fixedly connected to the side of the L-shaped connecting rod 905 away from the slider 3 903. While collecting dust, the slider 2 707 rotates to drive the slider 3 903 to move, and the slider 3 903 drives the L-shaped connecting rod 905 to move back and forth. The L-shaped connecting rod 905 drives the water outlet to indirectly have water flow through the water tank 801 into the collection box 902 to prevent dust from flying around. At the same time, the L-shaped connecting rod 905 pushes the dust precipitated in the collection box 902 to both sides, increasing the collection space, making the dust collection effect better, and enhancing the work efficiency. The inner wall of the collection box 902 contacts the bottom of the push rod 907; the collection box 902 is fixedly connected to the circumferential surface of the casing 1, the outer surface of the slider 3 903 is slidably connected to the inner wall of the casing 1, and the L-shaped connecting rod 905 is slidably connected to the inner wall of the collection box 902.

[0016] Working principle: After cleaning the filter plate 705, a part of the lower part of the baffle 901 is blocked to allow the dust to escape from the centrifugal force and fall into the collection box 902 through the cleaning port 908, thereby preventing the dust from accumulating inside the fan and affecting the internal parts of the fan, thereby increasing the service life of the fan and improving the exhaust effect. While collecting the dust, the slider 2 707 rotates to drive the slider 3 903 to move, and the slider 3 903 drives the L-shaped connecting rod 905 to move back and forth. The L-shaped connecting rod 905 drives the water outlet to indirectly flow into the collection box 902 through the water tank 801 to prevent dust from flying around. At the same time, the L-shaped connecting rod 905 pushes the dust precipitated in the collection box 902 to both sides, thereby increasing the collection space, making the dust collection effect better and enhancing work efficiency.

[0017] The present invention provides an energy-saving building fan. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. An energy-saving building fan, comprising a casing (1), characterized in that: The circumferential surface of the casing (1) is fixedly connected to a bracket (2), the inner wall of the casing (1) is fixedly connected to a fixed support rod (3), a side of the fixed support rod (3) away from the casing (1) is fixedly connected to a motor (4), an output end of the motor (4) is fixedly connected to a rotating shaft (5), an end of the rotating shaft (5) away from the motor (4) is fixedly connected to a fan (6), and the inner wall of the casing (1) is fixedly connected to a protective frame (10); The inner wall of the casing (1) is provided with an ash filtering mechanism (7), the inner wall of the casing (1) is provided with a dust reduction mechanism (8), and the inner wall of the casing (1) is provided with a recovery mechanism (9); The ash filtering mechanism (7) comprises a slider 1 (701), a fixed rod 1 (702), a rotating rod (703), a brush head (704), a filter plate (705), a protrusion 1 (706), a slider 2 (707), a limit block (708) and a protrusion 2 (709), wherein the slider 1 (701) is slidably connected to the inner wall of the rotating shaft (5), the outer surface of the fixed rod 1 (702) contacts the outer surface of the slider 1 (701), and the rotating rod (703) is fixedly connected to the left side of the fixed rod 1 (702). The brush head (704) is fixedly connected to the left side of the rotating rod (703), the first protrusion (706) is fixedly connected to the left side of the rotating rod (703), the circumferential surface of the second protrusion (709) contacts the circumferential surface of the first protrusion (706), the filter plate (705) is fixedly connected to the side of the second protrusion (709) away from the first protrusion (706), the limit block (708) is fixedly connected to the left end of the filter plate (705) by a spring, and the second slider (707) is fixedly connected to both ends of the rotating rod (703).

2. The energy-saving building fan according to claim 1, characterized in that: The outer surface of the second sliding block (707) is slidably connected to the inner wall of the casing (1), and the limiting block (708) is fixedly connected to the inner wall of the casing (1).

3. An energy-saving building fan according to claim 2, characterized in that: The left side of the brush head (704) contacts the filter plate (705), and the filter plate (705) is slidably connected to the inner wall of the housing (1).

4. The energy-saving building fan according to claim 3 is characterized in that: The dust reduction mechanism (8) comprises a water tank (801), a water pump (802), a flow guide pipe (803), an annular water pipe (804), a humidifying nozzle (805) and a water inlet (809); the water tank (801) is fixedly connected to the circumferential surface of the casing (1); the water pump (802) is fixedly connected to the front side of the water tank (801); the flow guide pipe (803) is fixedly installed at the output end of the water pump (802); the water inlet (809) is provided on the inner wall of the casing (1); the annular water pipe (804) is rotatably connected to the inner wall of the casing (1); and the humidifying nozzle (805) is fixedly connected to the inner wall of the annular water pipe (804).

5. The energy-saving building fan according to claim 4, characterized in that: The dust reduction mechanism (8) further comprises an annular guide plate (806), a guide block (807) and a second fixing rod (808); the annular guide plate (806) is fixedly connected to the right end of the annular water pipe (804); a sliding groove is provided on the inner wall of the annular guide plate (806); the guide block (807) is slidably connected to the sliding groove on the inner wall of the annular guide plate (806); and the second fixing rod (808) is fixedly connected to a side of the guide block (807) away from the annular guide plate (806).

6. The energy-saving building fan according to claim 5, characterized in that: One end of the flow guide pipe (803) away from the water pump (802) is fixedly mounted to the inner wall of the casing (1), and the second fixing rod (808) is fixedly connected to the left end of the filter plate (705).

7. The energy-saving building fan according to claim 6, characterized in that: The recovery mechanism (9) comprises a baffle (901), a collection box (902), a slider three (903), a pressure plate one (904), an L-shaped connecting rod (905), a pressure plate two (906), a push rod (907) and an ash cleaning port (908), wherein the baffle (901) is fixedly connected to the inner wall of the casing (1), the ash cleaning port (908) is provided on the inner wall of the casing (1), and the top of the slider three (903) is connected to the slider two (907). The pressure plate 1 (904) is fixedly connected to both sides of the slider 3 (903), the L-shaped connecting rod (905) is in contact with the bottom inclined surface of the slider 3 (903), the pressure plate 2 (906) is fixedly connected to the left side of the L-shaped connecting rod (905), the push rod (907) is fixedly connected to the side of the L-shaped connecting rod (905) away from the slider 3 (903), and the inner wall of the collection box (902) is in contact with the bottom of the push rod (907).

8. The energy-saving building fan according to claim 7, characterized in that: The collection box (902) is fixedly connected to the circumferential surface of the casing (1), the outer surface of the slider (903) is slidably connected to the inner wall of the casing (1), and the L-shaped connecting rod (905) is slidably connected to the inner wall of the collection box (902).

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