An air purification device for air conditioning and ventilation

Abstract

The present invention discloses an air purification device for air conditioning ventilation in the field of air purification technology, including a connecting head, and the connecting head is set to be spherical; the left and right ends of the connecting head are respectively fixedly connected with an air inlet pipe and an air outlet pipe, and a pump housing is rotatably installed in the connecting head; the pump housing is set to be spherical and its outer diameter is equal to the inner diameter of the connecting head, and an exhaust fan is arranged in the pump housing; an installation frame is arranged in the middle of the air inlet pipe, and a filter plate is slidably connected to the installation frame in the vertical direction; a driving mechanism for driving the pump housing to rotate is arranged at the bottom of the connecting head; the filter plate can move upward when the pump housing rotates to change the exhaust direction; the present invention can greatly improve the air purification efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and specifically relates to an air purification device for air conditioning ventilation. Background Art

[0002] The air conditioning ventilation function is to quickly discharge the dirty air in the room to achieve the purpose of purifying the air. When the existing ventilation function is used, it is divided into two methods: extracting the dirty air in the room to the outside (outdoor air can enter the room from ventilation positions such as windows) or introducing outdoor air into the room (thereby squeezing the dirty air in the room out of the room from ventilation positions such as windows). The two methods can be adaptively selected according to the distribution and concentration of the dirty air in the room. The existing two ventilation methods are switched by the forward and reverse rotation of the motor. When sucking outdoor air into the room, a filter screen is often arranged in the outdoor intake pipe to filter the dust in the outdoor air. When the motor switches the rotation direction to extract the indoor air to the outside, the position of the filter screen does not change, which will cause the particulate matter on the filter screen to enter the room again following the air the next time outdoor air is sucked into the room.

[0003] Based on this, the present invention designs an air purification device for air conditioning ventilation to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an air purification device for air conditioning ventilation to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An air purification device for air conditioning ventilation, including a connecting head, the connecting head is set to be spherical; the left and right ends of the connecting head are respectively fixedly connected with an intake pipe and an exhaust pipe, and a pump housing is rotatably installed in the connecting head; the pump housing is set to be spherical and its outer diameter is equal to the inner diameter of the connecting head, and an exhaust fan is arranged in the pump housing; a mounting frame is arranged in the middle of the intake pipe, and a filter plate is slidably connected to the mounting frame in the vertical direction; a driving mechanism for driving the pump housing to rotate is arranged at the bottom of the connecting head; the filter plate can move upward when the pump housing rotates to change the exhaust direction.

[0006] As a further solution of the present invention, a fixing plate is fixedly connected to the mounting frame, a first slider is slidably connected to the fixing plate, a pulling rope is fixedly connected to the first slider, one end of the pulling rope away from the first slider passes through the top of the mounting frame and extends into the mounting frame to be fixedly connected with the filter plate, and a guide rod is installed at the bottom of the first slider; a first rotating shaft is rotatably installed on the mounting frame, and a cylindrical cam and a first bevel gear are fixedly connected to the first rotating shaft; a cam groove capable of slidably cooperating with the guide rod is opened on the cylindrical cam; the first bevel gear meshes with a second bevel gear, and the second bevel gear is fixedly installed on the rotating shaft of the pump housing.

[0007] As a further solution of the present invention, the driving mechanism includes a motor, and the motor is fixedly installed at the bottom of the connecting head through bolts; the output shaft of the motor is fixedly connected to the rotating shaft of the pump housing.

[0008] As a further solution of the present invention, a first baffle is rotatably connected to the bottom of the filter plate, and a torsion spring for resetting it is sleeved on the rotating shaft of the first baffle.

[0009] As a further solution of the present invention, a second baffle is rotatably connected to the top of the filter plate, an incomplete gear is fixedly connected to the rotating shaft of the second baffle, and a rack bar capable of meshing with the incomplete gear is fixedly connected to the inner wall of the installation frame; an air inlet is opened at the top of the installation frame, and a sealing block is slidably connected to the top of the installation frame, and the sealing block is used to seal the air inlet.

[0010] As a further solution of the present invention, a pressure spring is fixedly connected to the top of the filter plate, and the top end of the pressure spring is fixedly connected to the installation frame.

[0011] As a further solution of the present invention, a reinforcing rib is provided between the fixing plate and the installation frame.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. In the present invention, by designing the connecting head and the pump housing into a spherical shape, the pump housing can rotate smoothly within the connecting head, and the pump housing can drive the exhaust fan to rotate at any time to change the exhaust direction (even during the operation of the exhaust fan, the direction can be switched), which can ensure the sealing between the connecting head and the intake pipe and the exhaust pipe. And when the pump housing is not working, the driving mechanism can drive the pump housing to drive the exhaust fan to rotate 90°, so that the opening of the pump housing is offset from the opening of the connecting head, and the exhaust fan will not be exposed to the air when it is not working, which can prevent a large amount of dust from adhering to the surface of the exhaust fan and enable the exhaust fan to work better when needed.

[0014] 2. When the exhaust fan of the present invention switches its working state, it can drive the filter plate to move upward so that the filter plate moves above the intake pipe. Subsequently, when the exhaust fan works to extract the indoor air to the outside, the air will not pass through the filter plate, which can greatly reduce the working pressure of the filter plate, increase the service life of the filter plate, and the filter screen will not block the discharge of particulate matter in the polluted air, which can better purify the indoor air. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic sectional view of the overall structure of the present invention;

[0017] Figure 3 Schematic cross-sectional view of the installation frame of the present invention and its internal structure;

[0018] Figure 4 Schematic view of the filter plate, first baffle and second baffle of the present invention;

[0019] Figure 5 Schematic view of the installation state of the pull rope and the pressure spring of the present invention.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] Connection head 1, intake pipe 2, exhaust pipe 3, pump housing 4, exhaust fan 5, installation frame 6, filter plate 7, fixing plate 8, first slider 9, pull rope 10, guide rod 11, first rotating shaft 12, cylindrical cam 13, first bevel gear 14, cam groove 15, second bevel gear 16, motor 17, first baffle 18, second baffle 19, incomplete gear 20, rack bar 21, air inlet 22, sealing block 23, pressure spring 24, reinforcing rib 25. Detailed implementation manners

[0022] Please refer to Figures 1-5 , the present invention provides a technical solution: an air purification device for air conditioning ventilation, including a connection head 1, the connection head 1 is set to be spherical; the left and right ends of the connection head 1 are respectively fixedly connected with an intake pipe 2 and an exhaust pipe 3, and a pump housing 4 is rotatably installed in the connection head 1; the pump housing 4 is set to be spherical and its outer diameter is equal to the inner diameter of the connection head 1, and an exhaust fan 5 is arranged in the pump housing 4; the middle of the intake pipe 2 is provided with an installation frame 6, and a filter plate 7 is slidably connected to the installation frame 6 in the vertical direction; a driving mechanism for driving the pump housing 4 to rotate is arranged at the bottom of the connection head 1; the filter plate 7 can move upward when the pump housing 4 rotates to change the exhaust direction.

[0023] A fixing plate 8 is fixedly connected to the installation frame 6, a first slider 9 is slidably connected to the fixing plate 8, a pull rope 10 is fixedly connected to the first slider 9, one end of the pull rope 10 away from the first slider 9 passes through the top of the installation frame 6 and extends into the installation frame 6 and is fixedly connected to the filter plate 7, and a guide rod 11 is installed at the bottom of the first slider 9; a first rotating shaft 12 is rotatably installed on the installation frame 6, and a cylindrical cam 13 and a first bevel gear 14 are fixedly connected to the first rotating shaft 12; a cam groove 15 capable of slidingly cooperating with the guide rod 11 is opened on the cylindrical cam 13; the first bevel gear 14 meshes with a second bevel gear 16, and the second bevel gear 16 is fixedly installed on the rotating shaft of the pump housing 4.

[0024] During operation, as Figure 1 and Figure 2 shown, when the exhaust fan 5 rotates at Figure 2When working in the shown state, the exhaust fan 5 sucks the outdoor air into the room, thereby squeezing the dirty air in the room out of the room through positions such as windows. After the air enters the intake pipe 2, it will be filtered by the filter plate 7, and then enter the room through the connecting head 1, the pump housing 4 and the outlet pipe 3; when it is necessary to directly extract the dirty air in the room to the outside, the driving mechanism drives the pump housing 4 to rotate 180° in the connecting head 1, and the pump housing 4 will drive the exhaust fan 5 to rotate 180° synchronously; the exhaust fan 5 changes the exhaust direction, and at this time the exhaust fan 5 can work to extract the dirty air in the room to the outside; it should be noted that during the process of the driving mechanism driving the pump housing 4 to rotate 180°, the pump housing 4 will drive the second bevel gear 16 to rotate synchronously, the second bevel gear 16 will drive the first bevel gear 14 to rotate synchronously, the first bevel gear 14 will drive the cylindrical cam 13 to rotate synchronously through the first rotating shaft 12, and the cylindrical cam 13 will drive the guide rod 11 to move away from the mounting frame 6 through the cam groove 15. The guide rod 11 will drive the first slider 9 to move synchronously, and the first slider 9 will drive the filter plate 7 to move upward through the pull rope 10, so that the filter plate 7 moves above the intake pipe 2. When the exhaust fan 5 works later to extract the air in the room to the outside, the air will not pass through the filter plate 7, which can greatly reduce the working pressure of the filter plate 7, increase the service life of the filter plate 7, and the filter net 7 will not block the discharge of particulate matter in the dirty air, which can better purify the indoor air; in the present invention, by designing the connecting head 1 and the pump housing 4 into a spherical shape, the pump housing 4 can rotate smoothly in the connecting head 1, and the pump housing 4 can drive the exhaust fan 5 to rotate at any time to change the exhaust direction (even when the exhaust fan is working, it can be switched), which can ensure the sealing between the connecting head 1 and the intake pipe 2 and the outlet pipe 3, and when the pump housing 4 is not working, the driving mechanism can drive the pump housing 4 to drive the exhaust fan 5 to rotate 90°, so that the opening of the pump housing 4 is staggered from the opening of the connecting head 1, and the exhaust fan 5 will not be exposed to the air when it is not working, which can avoid a large amount of dust adhering to the surface of the exhaust fan, and can make the exhaust fan 5 work better when needed; through the setting of the cylindrical cam 13 and the guide rod 11, the cylindrical cam 13 can drive the guide rod 11 to accurately move to the specified position whether it rotates forward or backward, so when the driving mechanism drives the pump housing 4 to rotate, it can rotate clockwise, or counterclockwise, or rotate in a way of switching between clockwise and counterclockwise, so the selection of the motor 17 is relatively simple.

[0025] As a further solution of the present invention, the driving mechanism includes a motor 17, and the motor 17 is fixedly installed at the bottom of the connecting head 1 through bolts; the output shaft of the motor 17 is fixedly connected to the rotating shaft of the pump housing 4.

[0026] When working, as Figure 2 shown, the motor 17 can drive the pump housing 4 to rotate in the connecting head 1.

[0027] As a further solution of the present invention, a first baffle 18 is rotatably connected to the bottom of the filter plate 7, and a torsion spring for resetting it is sleeved on the rotating shaft of the first baffle 18.

[0028] During operation, as Figures 2-4 shown, a first baffle 18 rotatably installed with the filter plate 7 is provided at the bottom of the filter plate 7. When the exhaust fan 5 draws outdoor air into the room through the intake pipe 2, more dust will gradually accumulate at the outer end of the filter plate 7. As the dust accumulates, some dust will fall, and the fallen dust will accumulate on the first baffle 18 instead of accumulating at the bottom of the installation frame 6, which can prevent dust from accumulating at the bottom of the installation frame 6 and affecting the sealing of the filter plate 7; when the exhaust fan 5 needs to switch its working state (when it needs to discharge outdoor air to the outside through the outlet pipe 3), the filter plate 7 will drive the first baffle 18 to move upward. When the indoor air flows through the intake pipe 2, the air pressure in the intake pipe 2 will decrease, and the first baffle 18 will shake under the action of the air pressure. The dust on the first baffle 18 will fall off during its shaking and be discharged together with the indoor air, which can ensure that the dust on the filter plate 7 can be discharged in time and will not accumulate on the first baffle 18.

[0029] As a further solution of the present invention, a second baffle 19 is rotatably connected to the top of the filter plate 7, an incomplete gear 20 is fixedly connected to the rotating shaft of the second baffle 19, and a rack bar 21 capable of meshing with the incomplete gear 20 is fixedly connected to the inner wall of the installation frame 6; an air inlet 22 is opened at the top of the installation frame 6, and a sealing block 23 is slidably connected to the top of the installation frame 6, and the sealing block 23 is used to seal the air inlet 22.

[0030] During operation, as Figures 2-4 shown, when the filter plate 7 moves upward, it will drive the second baffle 19 to move upward synchronously. The second baffle 19 will drive the incomplete gear 20 to move upward synchronously. When the incomplete gear 20 moves to mesh with the rack bar 21, the rack bar 21 will drive the incomplete gear 20 to rotate upward, and the incomplete gear 20 will drive the second baffle 19 to rotate to the vertical position. When the second baffle 19 moves to the highest point, it will drive the sealing block 23 to move upward to open the air inlet 22; then when the exhaust fan 5 works to discharge the indoor air to the outside, when the air flows through the intake pipe 2, the air pressure in the intake pipe 2 decreases, and then the outside air can enter the installation frame 6 from the air inlet 22 under the action of the air pressure, and then enter the intake pipe 2 from the installation frame 6 and be discharged. The air flow can promote the dust adhered to the surface of the filter plate 7 to fall off, and at the same time can make the dust on the first baffle 18 fall off and be discharged faster; in the initial state, the second baffle 19 is in a horizontal state, and at this time the second baffle 19 can play a sealing role, which can prevent a large amount of dust from entering the upper part of the installation frame 6 and accumulating on the top of the second baffle 19, affecting the operation of the second baffle 19.

[0031] As a further solution of the present invention, a pressure spring 24 is fixedly connected to the top of the filter plate 7, and the top end of the pressure spring 24 is fixedly connected to the mounting frame 6.

[0032] During operation, as Figure 2 shown, through the arrangement of the pressure spring 24, the pressure spring 24 can make the filter plate 7 fit more closely with the mounting frame 6 when in the Figure 2 state, and can make the sealing effect better.

[0033] As a further solution of the present invention, a reinforcing rib 25 is provided between the fixing plate 8 and the mounting frame 6.

[0034] During operation, as Figure 1 shown, through the arrangement of the reinforcing rib 25, the fixing plate 8 can work more stably.

[0035] Working principle: As Figure 1 and Figure 2 shown, when the exhaust fan 5 is at Figure 2When working in the shown state, the exhaust fan 5 sucks the outdoor air into the room, thereby squeezing the dirty air in the room out of the room through positions such as windows. After the air enters the intake pipe 2, it will be filtered by the filter plate 7, and then enter the room through the connecting head 1, the pump housing 4, and the outlet pipe 3; when it is necessary to directly extract the dirty air in the room to the outside, the driving mechanism drives the pump housing 4 to rotate 180° in the connecting head 1, and the pump housing 4 will drive the exhaust fan 5 to rotate 180° synchronously; the exhaust direction of the exhaust fan 5 is changed, and at this time, the exhaust fan 5 can work to extract the dirty air in the room to the outside; it should be noted that during the process of the driving mechanism driving the pump housing 4 to rotate 180°, the pump housing 4 will drive the second bevel gear 16 to rotate synchronously, the second bevel gear 16 will drive the first bevel gear 14 to rotate synchronously, the first bevel gear 14 will drive the cylindrical cam 13 to rotate synchronously through the first rotating shaft 12, and the cylindrical cam 13 will drive the guide rod 11 to move away from the mounting frame 6 through the cam groove 15. The guide rod 11 will drive the first slider 9 to move synchronously, and the first slider 9 will drive the filter plate 7 to move upward through the pull rope 10, so that the filter plate 7 moves above the intake pipe 2. When the exhaust fan 5 works to extract the indoor air to the outside later, the air will not pass through the filter plate 7, which can greatly reduce the working pressure of the filter plate 7, increase the service life of the filter plate 7, and the filter net 7 will not block the discharge of particulate matter in the dirty air, which can better purify the indoor air; in the present invention, by designing the connecting head 1 and the pump housing 4 into a spherical shape, the pump housing 4 can rotate smoothly in the connecting head 1, and the pump housing 4 can drive the exhaust fan 5 to rotate at any time to change the exhaust direction (even when the exhaust fan is working, it can be switched), which can ensure the sealing between the connecting head 1 and the intake pipe 2 and the outlet pipe 3. And when the pump housing 4 is not working, the driving mechanism can drive the pump housing 4 to drive the exhaust fan 5 to rotate 90°, so that the opening of the pump housing 4 is staggered from the opening of the connecting head 1. When the exhaust fan 5 is not working, it will not be exposed to the air, which can avoid a large amount of dust adhering to the surface of the exhaust fan, and can make the exhaust fan 5 work better when needed; through the setting of the cylindrical cam 13 and the guide rod 11, the cylindrical cam 13 can drive the guide rod 11 to accurately move to the specified position whether it rotates forward or backward. Therefore, when the driving mechanism drives the pump housing 4 to rotate, it can rotate clockwise, counterclockwise, or in a way of switching between clockwise and counterclockwise. Therefore, the selection of the motor 17 is relatively simple.

Claims

1. An air purification device for air conditioning and ventilation, characterized in that: The invention comprises a connecting head (1), which is spherical in shape; the left and right ends of the connecting head (1) are respectively fixedly connected with an air inlet pipe (2) and an air outlet pipe (3); a pump housing (4) is rotatably mounted in the connecting head (1); the pump housing (4) is provided with openings respectively connected with the air inlet pipe (2) and the air outlet pipe (3); the pump housing (4) is spherical in shape and has an outer diameter equal to the inner diameter of the connecting head (1); an exhaust fan (5) is arranged in the pump housing (4); a mounting frame (6) is arranged in the middle of the air inlet pipe (2); the mounting frame (6) is slidably connected with a filter plate (7) in a vertical direction; a driving mechanism for driving the pump housing (4) to rotate is arranged at the bottom of the connecting head (1); the filter plate (7) is capable of moving upward when the pump housing (4) rotates and changes from sucking outdoor air into the room to sucking indoor air out to the outside.

2. An air purification device for air conditioning and ventilation according to claim 1, characterized in that: A fixing plate (8) is fixedly connected to the mounting frame (6), a first sliding block (9) is slidably connected to the fixing plate (8), a pull rope (10) is fixedly connected to the first sliding block (9), an end of the pull rope (10) away from the first sliding block (9) passes through the top of the mounting frame (6) and extends into the mounting frame (6) to be fixedly connected to the filter plate (7), a guide rod (11) is installed at the bottom of the first sliding block (9); a first rotating shaft (12) is rotatably mounted on the mounting frame (6), the first rotating shaft (12) is fixedly connected to a cylindrical cam (13) and a first bevel gear (14); a cam groove (15) capable of slidably cooperating with the guide rod (11) is formed on the cylindrical cam (13); the first bevel gear (14) is meshed with a second bevel gear (16), and the second bevel gear (16) is fixedly mounted on the rotating shaft of the pump housing (4).

3. The air purification device for air conditioning and ventilation according to claim 1, characterized in that: The driving mechanism comprises a motor (17), and the motor (17) is fixedly mounted on the bottom of the connecting head (1) by means of bolts; the output shaft of the motor (17) is fixedly connected to the rotating shaft of the pump casing (4).

4. The air purification device for air conditioning and ventilation according to claim 2, characterized in that: The bottom of the filter plate (7) is rotatably connected to a first baffle plate (18), and a torsion spring for resetting the first baffle plate (18) is sleeved on the rotation axis of the first baffle plate (18).

5. The air purification device for air conditioning and ventilation according to claim 4, characterized in that: The top of the filter plate (7) is rotatably connected to a second baffle (19); an incomplete gear (20) is fixedly connected to the rotation axis of the second baffle (19); a rack rod (21) capable of meshing with the incomplete gear (20) is fixedly connected to the inner wall of the mounting frame (6); an air inlet (22) is provided at the top of the mounting frame (6); a sealing block (23) is slidably connected to the top of the mounting frame (6); the sealing block (23) is used to seal the air inlet (22).

6. The air purification device for air conditioning and ventilation according to claim 5, characterized in that: A pressure spring (24) is fixedly connected to the top of the filter plate (7), and the top end of the pressure spring (24) is fixedly connected to the mounting frame (6).

7. The air purification device for air conditioning and ventilation according to claim 2, characterized in that: A reinforcing rib (25) is provided between the fixing plate (8) and the mounting frame (6).

Images