Orifice plate type variable air volume valve

Abstract

The pore plate type variable air volume valve comprises an air valve shell, a first air pipe and a second air pipe are fixedly connected to the two sides of the air valve shell respectively, a dustproof filter screen is arranged at the top of the first air pipe in a penetrating mode, the dustproof filter screen is tightly attached to the inner wall of the first air pipe, and an air baffle is arranged at the bottom of the air valve shell in a penetrating mode. One end of the bottom of the wind shield is fixedly connected with a rack, the rack is in meshed connection with a gear, one side of the gear is provided with two synchronous wheels, the two synchronous wheels are provided with the same synchronous belt, the synchronous wheel located at the bottom end is fixedly connected with the gear, and one side of the synchronous wheel located at the top end is fixedly connected with a rotating shaft. The rotating shaft penetrates through one side of the first air pipe, the side, away from the synchronous wheel, of the rotating shaft is fixedly connected with a driving shaft, and the outer wall of the driving shaft is fixedly connected with a worm. According to the utility model, the dustproof filter screen can be cleaned conveniently, the manual maintenance frequency is reduced, the labor and time cost is saved, and the stable and normal operation of equipment is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to variable air volume valve technical field especially relates to a hole plate type variable air volume valve. BACKGROUND

[0002] The air volume regulating valve is also called air regulating door, and is indispensable central air conditioning terminal fittings in the ventilation, air conditioning and air purification engineering of industrial plants and civil buildings, and is generally used in the air conditioning and ventilation system pipeline to regulate the air volume of branch pipes and can be used for mixing and regulating fresh air and return air.

[0003] Through the search, the patent with the Chinese patent authorization number CN218864400U discloses a hole plate type variable air volume valve, which comprises a wind valve shell, a first air duct is arranged on the left side of the wind valve shell, a second air duct is arranged on the right side of the wind valve shell, and the side of the first air duct close to the wind valve shell and the side of the second air duct close to the wind valve shell are provided with positioning installation supports.

[0004] The hole plate type variable air volume valve in the above patent has the following disadvantages: there is no mechanism for cleaning the dust filter screen, and there is a lot of dust in the air in some areas, so the surface of the dust filter screen will accumulate a lot of dust in a short time, which will affect the air intake, in order to ensure the stability of the air intake, the dust filter screen needs to be cleaned regularly, and without the cleaning mechanism, the staff needs to take out the dust filter screen frequently for cleaning, which is troublesome, and the air intake valve needs to be closed during cleaning, which affects the use, so the above problems need to be solved. UTILITARY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a hole plate type variable air volume valve.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a orifice plate type variable air volume valve, including the air valve casing, the first air pipe and the second air pipe are fixedly connected with both sides of air valve casing respectively, the top of first air pipe is equipped with the dust filter screen, the dust filter screen is close to the inner wall of first air pipe and sets, the bottom of air valve casing is equipped with the baffle, the baffle is connected with air valve casing, the bottom one end of baffle is fixedly connected with the rack, the rack is connected with the gear, the one side of gear is equipped with two synchronous pulleys, two synchronous pulleys all are equipped with same synchronous belt, the synchronous pulley of bottom is fixedly connected with gear, the one side of synchronous pulley of top is fixedly connected with the rotating shaft, the rotating shaft passes through the one side of first air pipe, the rotating shaft is fixedly connected with the drive shaft on the side away from synchronous pulley, the outer wall of drive shaft is fixedly connected with the worm, the top of worm is equipped with the worm wheel matched with it, the one side of worm wheel is fixedly connected with the H shape wheel, the H shape wheel is sleeved with fixed plate, the inner wall of first air pipe is fixedly connected with fixed plate, the H shape wheel is fixedly connected with the cleaning brush on the side away from worm wheel, the bristle of cleaning brush is contacted with dust filter screen, because the technical means that can make the cleaning brush rotate and scrape and clean the dust filter screen in the process of adjusting the position of baffle is adopted, can clean the dust accumulated on the surface of dust filter screen, avoid the dust filter screen being covered with a lot of dust and being blocked, effectively solve the lack of cleaning mechanism for dust filter screen in the background art, the air in some areas contains more dust, so the surface of dust filter screen will accumulate more dust in a short time, will influence the air intake, in order to ensure the stability of air intake, need to clean the dust filter screen regularly, lack of cleaning mechanism, need staff to take out the dust filter screen frequently and clean, it is more troublesome, and need to close the air intake valve in the process of cleaning, influence use, further realize the technical effect that the dust filter screen is cleaned conveniently, the frequency of manual maintenance is reduced, the manpower and time cost are saved, and the stable and normal operation of equipment is ensured.

[0008] Preferably, the drive shaft is sleeved with a sleeve at both ends, and the sleeve is fixedly connected to the inner wall of the first air pipe.

[0009] Preferably, a fixed shaft is provided on the gear, and two mounting frames are provided on the side away from the synchronous pulley, the fixed shaft is fixedly connected to one of the mounting frames, the mounting frames are fixedly connected to the bottom of the air valve casing, and two contact sterilization rollers are rotatably connected to the mounting frames.

[0010] Preferably, an activated carbon screen and a microporous screen are sequentially provided on the top of the first air pipe near the air valve casing, and the activated carbon screen and the microporous screen are closely arranged against the inner wall of the first air pipe.

[0011] Preferably, a motor is fixedly connected to the top of the air valve casing.

[0012] Preferably, the output end of the motor is fixedly connected with a driving screw rod, the driving screw rod is sleeved with a screw rod nut, the screw rod nut is matched with the screw rod nut, and the outer wall of the screw rod nut is fixedly connected with a wind shield.

[0013] Preferably, the top of the wind shield is provided with guide rods at both ends, the guide rods are fixedly connected with the inner wall of the top of the air valve shell, and the wind shield is slidably connected with the guide rods.

[0014] The utility model discloses the beneficial effects are:

[0015] Because adopt the technical means that the position of the wind shield can make the cleaning brush rotate and scrape the dust filter screen during adjusting, so the dust accumulated on the surface of the dust filter screen can be cleaned, the dust filter screen is prevented from being blocked by a large amount of dust, the mechanism for cleaning the dust filter screen is provided, the air in some areas contains a lot of dust, so the surface of the dust filter screen will accumulate a lot of dust in a short time, the air inlet will be affected, in order to ensure the stability of the air inlet, the dust filter screen needs to be cleaned regularly, the cleaning mechanism is lacked, the dust filter screen needs to be taken out and cleaned frequently by the staff, which is troublesome, and the air inlet valve needs to be closed during cleaning, which affects use, and the technical effects of facilitating the cleaning of the dust filter screen, reducing the frequency of manual maintenance, saving manpower and time cost and ensuring the stable and normal operation of the equipment are realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic view of the orifice plate type variable air volume valve is provided for the utility model;

[0017] Figure 2 A cross-sectional development structure schematic view of the orifice plate type variable air volume valve is provided for the utility model;

[0018] Figure 3 A local structure schematic view of the orifice plate type variable air volume valve is provided for the utility model;

[0019] Figure 4 A cleaning plate structure schematic view of the orifice plate type variable air volume valve is provided for the utility model;

[0020] Figure 5 A wind shield expansion structure schematic view of the orifice plate type variable air volume valve is provided for the utility model;

[0021] Figure 6 A gear expansion structure schematic view of the orifice plate type variable air volume valve is provided for the utility model;

[0022] Figure 7The utility model provides an unfolding structure schematic view at drive shaft of orifice plate type variable air volume valve.

[0023] In the figure: 1, air valve casing; 2, first air pipe; 3, second air pipe; 4, dust filter screen; 5, wind baffle; 6, rack; 7, gear; 8, synchronous wheel; 9, synchronous belt; 10, rotating shaft; 11, drive shaft; 12, worm; 13, worm wheel; 14, I-shaped wheel; 15, cleaning brush; 16, sleeve; 17, fixed shaft; 18, mounting frame; 19, contact sterilization roller; 20, activated carbon screen plate; 21, microporous filter screen; 22, motor; 23, drive screw; 24, screw nut; 25, guide rod; 26, fixed plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Reference Figures 1-7The utility model discloses a hole plate type variable air volume valve, including the air valve casing 1, the first air pipe 2 and the second air pipe 3 are fixedly connected with the both sides of air valve casing 1 respectively, the top of first air pipe 2 is equipped with the dust filter screen 4, and the dust filter screen 4 is close to the inner wall of first air pipe 2 and is equipped, the bottom of air valve casing 1 is equipped with the baffle 5, and the baffle 5 is slidably connected air valve casing 1, and the bottom one end of baffle 5 is fixedly connected with the rack 6, and the rack 6 is engagedly connected with the gear 7, and the gear 7 is provided with two synchronous pulleys 8 on one side, and the same synchronous belt 9 is arranged on the two synchronous pulleys 8, and the synchronous pulley 8 at the bottom is fixedly connected with the gear 7, and the synchronous pulley 8 at the top is fixedly connected with the rotating shaft 10 on one side, and the rotating shaft 10 passes through the one side of first air pipe 2, and the rotating shaft 10 is fixedly connected with the drive shaft 11 on the side away from the synchronous pulley 8, and the outer wall of drive shaft 11 is fixedly connected with the worm 12, and the top of worm 12 is provided with the worm wheel 13 matched therewith, and the worm wheel 13 is fixedly connected with the I-shaped wheel 14 on one side, and the I-shaped wheel 14 is sleeved with the fixed plate 26, and the fixed plate 26 is fixedly connected with the inner wall of first air pipe 2, and the I-shaped wheel 14 is fixedly connected with the cleaning brush 15 on the side away from the worm wheel 13, and the bristles of cleaning brush 15 contact with dust filter screen 4, because the technical means that the position of baffle is adjusted can make the cleaning brush rotate and scrape and clean dust filter screen, so that the dust accumulated on the surface of dust filter screen can be cleaned, the dust filter screen is prevented from being blocked by a large amount of dust, the problem that the mechanism for cleaning dust filter screen is lacked in the background art is solved, the air in some areas contains a lot of dust, so the surface of dust filter screen can accumulate a lot of dust in a short time, which can affect the air intake, in order to ensure the stability of air intake, the dust filter screen needs to be cleaned regularly, and the cleaning mechanism is lacked, so the staff needs to take out the dust filter screen frequently for cleaning, which is troublesome, and the air intake valve needs to be closed during the cleaning process, which affects use, and the technical effects that the dust filter screen is cleaned conveniently, the frequency of manual maintenance is reduced, the labor and time cost are saved, and the equipment can stably and normally operate are achieved.

[0026] In the utility model, the both ends of drive shaft 11 are sleeved with sleeve 16, and sleeve 16 is fixedly connected with the inner wall of first air pipe 2.

[0027] In the utility model, fixed shaft 17 is arranged on gear 7, and two mounting frames 18 are arranged on the side away from synchronous pulley 8, and fixed shaft 17 is fixedly connected with one of mounting frames 18, and mounting frame 18 is fixedly connected with the bottom of air valve casing 1, and two contact sterilization rollers 19 are rotatably connected on two mounting frames 18, and the bacteriostatic agent sprayed on the surface of contact sterilization roller 19 can sterilize the bacteria possibly generated on guide rod 25.

[0028] In this utility model, an activated carbon mesh plate 20 and a microporous filter 21 are sequentially installed at the top of the first air duct 2 near the air valve housing 1. Both the activated carbon mesh plate 20 and the microporous filter 21 are closely attached to the inner wall of the first air duct 2. The activated carbon mesh plate 20 adsorbs and removes moisture, pigments, odors and other impurities, while the microporous filter 21 adsorbs and removes small particulate dust impurities.

[0029] In this utility model, a motor 22 is fixedly connected to the top of the air valve housing 1.

[0030] In this utility model, the output end of the motor 22 is fixedly connected to a drive screw 23, the drive screw 23 is fitted with a screw nut 24, the screw nut 24 is adapted to the screw nut 24, and the outer wall of the screw nut 24 is fixedly connected to a baffle plate 5, which moves close to the inner wall of the air valve housing 1.

[0031] In this utility model, guide rods 25 are provided at both ends of the top of the wind baffle 5. The guide rods 25 are fixedly connected to the top inner wall of the wind valve housing 1. The wind baffle 5 is slidably connected to the guide rods 25. When the wind baffle 5 moves, it will move along the guide rods 25 to ensure the stability of the wind baffle 5 when it moves.

[0032] Working Principle: Before use, the dust filter 4, activated carbon mesh 20, and microporous filter 21 are sequentially inserted into the first air duct 2. The dust filter 4 removes large dust particles and impurities, while the activated carbon mesh 20 adsorbs and removes moisture, pigments, odors, and other impurities. The microporous filter 21 then adsorbs and removes small dust particles and impurities. The treated air enters the air valve housing 1 and is then discharged through the second air duct 3. It is powered by an external power supply. The motor 22 is started by an external controller. The output of the motor 22 drives the drive screw 23 to rotate, which in turn moves the screw nut 24. The screw nut 24 then moves the baffle 5 along the guide rod 25, allowing the baffle 5 to rise or fall to adjust the airflow. During the adjustment of the baffle 5, the baffle 5 moves the rack 6, which in turn moves the gear 7 on the fixed shaft 17. The rotation of the gear 7 drives the synchronous pulley 8 to rotate. Through the synchronous belt 9, both synchronous pulleys 8 rotate synchronously. The rotation of wheel 8 drives the rotation of shaft 10, which in turn drives the rotation of drive shaft 11 on sleeve 16. Drive shaft 11 drives worm gear 12, which in turn drives worm wheel 13. Worm wheel 13 drives I-beam wheel 14 on fixed plate 26, which in turn drives cleaning brush 15. The bristles of cleaning brush 15 clean the dust filter 4, scraping away accumulated dust to ensure airflow and lower the baffle 5 to its lowest position. Then it rises again. During this process, the baffle plate 5 will come into contact with the sterilization roller 19. The baffle plate 5 will drive the sterilization roller 19 to rotate. The antibacterial agent sprayed on the surface of the sterilization roller 19 will sterilize the bacteria that may grow on the guide rod 25. The treated air then enters the second air duct 3 through the air valve housing 1 and is discharged from the second air duct 3. When it is necessary to treat the dust in the first air duct 2, the dust filter 4 is taken out and the vacuum cleaner head is inserted into the first air duct 4 to extract the dust.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An orifice plate type variable air volume valve, comprising a valve housing (1), characterized in that, The first air duct (2) and the second air duct (3) are fixedly connected to both sides of the air valve housing (1). A dust filter (4) is installed on the top of the first air duct (2) and is closely attached to the inner wall of the first air duct (2). A baffle plate (5) is installed at the bottom of the air valve housing (1) and is slidably connected to the air valve housing (1). A rack (6) is fixedly connected to one bottom end of the baffle plate (5) and is meshed with a gear (7). Two synchronous pulleys (8) are provided on one side of the gear (7). The same synchronous belt (9) is provided on both synchronous pulleys (8). The synchronous pulley (8) at the bottom is fixedly connected to the gear (7), and the synchronous pulley (8) at the top is fixedly connected to the gear (7). A rotating shaft (10) is fixedly connected to one side of the first air duct (2). The rotating shaft (10) passes through one side of the first air duct (2). A drive shaft (11) is fixedly connected to the rotating shaft (10) on the side away from the synchronous wheel (8). A worm gear (12) is fixedly connected to the outer wall of the drive shaft (11). A worm wheel (13) is provided at the top of the worm gear (12) to cooperate with it. An I-shaped wheel (14) is fixedly connected to one side of the worm wheel (13). A fixing plate (26) is sleeved on the I-shaped wheel (14). The fixing plate (26) is fixedly connected to the inner wall of the first air duct (2). A cleaning brush (15) is fixedly connected to the side of the I-shaped wheel (14) away from the worm wheel (13). The bristles of the cleaning brush (15) are in contact with the dust filter (4).

2. The orifice plate type variable air volume valve according to claim 1, characterized in that, Both ends of the drive shaft (11) are fitted with sleeves (16), and the sleeves (16) are fixedly connected to the inner wall of the first air duct (2).

3. The orifice plate type variable air volume valve according to claim 1, characterized in that, A fixed shaft (17) is provided on the gear (7). Two mounting frames (18) are provided on the side of the fixed shaft (17) away from the synchronous wheel (8). The fixed shaft (17) is fixedly connected to one of the mounting frames (18). The mounting frame (18) is fixedly connected to the bottom of the air valve housing (1). Two contact sterilization rollers (19) are rotatably connected to both mounting frames (18).

4. The orifice plate type variable air volume valve according to claim 2, characterized in that, An activated carbon mesh plate (20) and a microporous filter (21) are sequentially installed at the top of the first air duct (2) near the air valve housing (1). The activated carbon mesh plate (20) and the microporous filter (21) are both installed close to the inner wall of the first air duct (2).

5. The orifice plate type variable air volume valve according to claim 4, characterized in that, A motor (22) is fixedly connected to the top of the air valve housing (1).

6. The orifice plate type variable air volume valve according to claim 5, characterized in that, The output end of the motor (22) is fixedly connected to a drive screw (23), the drive screw (23) is fitted with a screw nut (24), the screw nut (24) is adapted to the screw nut (24), and the outer wall of the screw nut (24) is fixedly connected to a wind baffle (5).

7. The orifice plate type variable air volume valve according to claim 6, characterized in that, Guide rods (25) are provided at both ends of the top of the wind baffle (5). The guide rods (25) are fixedly connected to the top inner wall of the wind valve housing (1). The wind baffle (5) is slidably connected to the guide rods (25).

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