Air filter

Abstract

The utility model relates to an air filter, which aims at solving the technical problems that a filter screen of an existing air filter cannot be automatically replaced, the filtering effect of the filter is influenced after the filter screen is blocked by dust, and the filter screen cannot be automatically washed under the condition that the air filter is disassembled, and comprises a shell, the interior of the shell is movably connected with a rotating shaft, the periphery of the rotating shaft is fixedly connected with four filtering frames, the filtering frames are in sealed connection with the inner wall of the shell through sealing sleeves, the center of each filtering frame is fixedly connected with a filtering net, one end of the rotating shaft is fixedly connected to the output end of a driving motor, and the other end of the rotating shaft is fixedly connected to the output end of the driving motor. One side of the driving motor is provided with an open slot communicated with the interior of the shell, and one side of the open slot is provided with a supporting plate, so that the filter screen on the filter frame can be automatically replaced, and the filter effect of the filter is prevented from being influenced after the filter screen is blocked by dust.

Description

Technical Field

[0001] The utility model relates to the field of filters, in particular to an air filter. Background Art

[0002] Before filling the filter material of the plate and frame air filter, first stick a layer of galvanized iron mesh (or stainless steel mesh) on the air outlet surface of the filter material. After filling the filter material, cover it with another layer of galvanized iron mesh (or stainless steel mesh). These two layers of iron mesh can not only protect the filter material from being blown apart, but are generally used in the coarse and medium efficiency filtration system of air conditioners to extend the service life of bag and HFPA filters and coarse filters for factory exhaust gas and processing dust collection.

[0003] According to the patent publication 202320830760.X, a plate-frame air filter includes a first galvanized iron mesh and a second galvanized iron mesh, wherein the outer wall of the first galvanized iron mesh is fixedly connected with a fixed frame, and the fixed frame is provided with a plurality of fixed frames, and the inner walls of the plurality of fixed frames are movably connected with the limit blocks through the connecting pieces. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved, and the problem of inconvenient disassembly is solved by the first galvanized iron mesh, the second galvanized iron mesh, the fixed frame, the connecting piece, the limit blocks, the through holes, the fixed blocks, the limit grooves, the guide rods, the knobs, the pressure plates, the reset springs and the sealing layers. During use, the traditional air filter cannot automatically replace the filter screen, and the filter screen is blocked by dust, which affects the filtering effect of the filter, and the air filter cannot automatically flush the filter screen when it is disassembled. For this reason, it is necessary to design a new technical solution to solve it. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide an air filter to solve the technical problems that the current air filter cannot automatically replace the filter screen, the filter screen is blocked by dust and affects the filtering effect of the filter, and the air filter cannot automatically flush the filter screen when it is disassembled.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: an air filter is designed, including a shell, a rotating shaft is movably connected inside the shell, four filter frames are fixedly connected around the rotating shaft, the filter frames are sealed and connected to the inner wall of the shell through a sealing sleeve, a filter screen is fixedly connected at the center of the filter frame, one end of the rotating shaft is fixedly connected to the output end of the driving motor, a slot communicating with the inside of the shell is opened on one side of the driving motor, and a support plate is installed on one side of the slot;

[0006] The support plate is connected to a sealing plate through an electric push rod, a slot is provided at the center of the sealing plate, the interior of one end of the sealing plate is hollow, and a plurality of nozzles are installed on the outside thereof, a hose is seal-connected to the top end of the sealing plate, and the other end of the hose is connected to a water tank through a water pump.

[0007] Preferably, one end of the shell is sealed and connected to an air inlet pipe joint, the other end of the shell is sealed and connected to an air outlet pipe joint, and one side of the outside of the shell is fixedly connected to a controller.

[0008] Preferably, a gas flow rate sensor is fixedly connected to the top end of the gas outlet pipe joint, and a monitoring end of the gas flow rate sensor is located inside the gas outlet pipe joint.

[0009] Preferably, a drainage trough body is welded in a communicating manner on one side of the bottom of the shell, and a drainage valve is sealed and connected to the bottom end of the drainage trough body.

[0010] Preferably, the height of the slot matches the overall height of the filter frame and the sealing sleeve, and the width of the slot matches the width of the filter frame and the sealing sleeve.

[0011] Preferably, the electric push rod is fixedly connected to the top of the support plate, the output end of the electric push rod is fixedly connected to the top of the sealing plate, one end of the sealing plate is sealed to the inner wall of the outer shell, and the other end of the sealing plate covers the outside of the groove and is sealed to the outer surface of the outer shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model combines a rotating shaft, a filter frame, a sealing sleeve, a filter screen, a driving motor, a slot and a gas flow rate sensor. When the air flow rate inside the outlet pipe joint is lower than the detection value of the gas flow rate sensor, the controller will control the alarm to sound a prompt, and the operator will then control the electric push rod to operate through the controller. At this time, the electric push rod will drive the sealing plate to be drawn out from the inside of the slot, and then the controller will control the driving motor to operate, so that the driving motor drives the filter frame on the rotating shaft to rotate inside the shell, so as to achieve automatic replacement of the filter screen on the filter frame, thereby avoiding the filter screen being blocked by dust and affecting the filtering effect of the filter.

[0014] When the clogged filter is replaced, the controller controls the electric push rod to operate, and the electric push rod drives the sealing plate to move downward, so that the sealing plate can be inserted into the inside of the shell through the slot. During this process, the slot on the sealing plate will be plugged into the outside of the filter frame, which can not only limit the position of the filter frame, but also separate the outer hollow of the shell, so as to prevent the dust mixed in the gas from adhering to other filters;

[0015] After the sealing plate is inserted into the outer shell, the controller controls the water pump to operate, so that the water pump draws out the water in the water tank through the hose and transports it to the hollow interior of the sealing plate. The water is then sprayed out by the nozzle to flush the filter before replacement. The flushing water will flow into the drain tank, and the drain valve can be opened to discharge the sewage. This effectively realizes the automatic flushing of the filter inside the air filter, avoids the operator having to disassemble the air filter before cleaning the filter, and improves the convenience of cleaning the filter inside the air filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a top view of the interior of the housing of the utility model;

[0018] Figure 3 This is a schematic diagram of the filtering framework structure of the utility model;

[0019] Figure 4 It is a side view of the sealing plate of the utility model;

[0020] Figure 5 It is a hollow cross-sectional view of the utility model;

[0021] In the figure: 1. housing; 11. air inlet pipe joint; 12. air outlet pipe joint; 13. controller; 14. gas flow rate sensor; 15. drain tank; 16. drain valve; 17. alarm;

[0022] 2. Rotating shaft; 21. Filter frame; 22. Sealing sleeve; 23. Filter screen; 24. Driving motor; 25. Slotting;

[0023] 3. Support plate; 31. Electric push rod; 32. Sealing plate; 33. Slot; 34. Nozzle; 35. Hose; 36. Water pump; 37. Water tank. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Example 1: An air filter, see Figures 1 to 5, including a shell 1, a rotating shaft 2 is movably connected inside the shell 1, four filter frames 21 are fixedly connected around the rotating shaft 2, the filter frame 21 is sealed and connected to the inner wall of the shell 1 through a sealing sleeve 22, a filter screen 23 is fixedly connected at the center of the filter frame 21, one end of the rotating shaft 2 is fixedly connected to the output end of the driving motor 24, a slot 25 communicating with the inside of the shell 1 is opened on one side of the driving motor 24, a support plate 3 is installed on one side of the slot 25, when the air flow velocity inside the outlet pipe joint 12 is lower than the detection velocity of the gas flow velocity sensor 14 When the value is reached, the controller 13 will send out a prompt sound from the controller 13 alarm 17, and the operator will then control the electric push rod 31 to operate through the controller 13. At this time, the electric push rod 31 will drive the sealing plate 32 to be pulled out from the inside of the slot 25, and then the controller 13 will control the driving motor 24 to operate, so that the driving motor 24 drives the filter frame 21 on the rotating shaft 2 to rotate inside the housing 1, so as to achieve automatic replacement of the filter screen 23 on the filter frame 21, thereby avoiding the filter screen 23 being blocked by dust and affecting the filtering effect of the filter;

[0026] The support plate 3 is connected to a sealing plate 32 through an electric push rod 31. The electric push rod 31 is fixedly connected to the top of the support plate 3. The output end of the electric push rod 31 is fixedly connected to the top of the sealing plate 32. One end of the sealing plate 32 is sealed to the inner wall of the housing 1. The other end of the sealing plate 32 covers the outside of the slot 25 and is sealed to the outer surface of the housing 1. A slot 33 is opened at the center of the sealing plate 32. The height of the slot 33 is consistent with the overall height of the filter frame 21 and the sealing sleeve 22. The width of the slot 33 is consistent with the width of the filter frame 21 and the sealing sleeve. The width of the filter frame 22 matches. When the blocked filter screen 23 is replaced, the controller 13 controls the electric push rod 31 to operate. At this time, the electric push rod 31 drives the sealing plate 32 to move downward, so that the sealing plate 32 is inserted into the inside of the housing 1 through the slot 25. In this process, the slot 33 on the sealing plate 32 is plugged into the outside of the filter frame 21, which can not only limit the position of the filter frame 21, but also separate the outer hollow of the housing 1, so as to prevent the dust mixed in the gas from adhering to other filter screens 23;

[0027] The interior of one end of the sealing plate 32 is hollow, and a plurality of nozzles 34 are installed on the outside thereof. The top end of the sealing plate 32 is sealed and connected to a hose 35, and the other end of the hose 35 is connected to a water tank 37 through a water pump 36. When the sealing plate 32 is inserted into the shell 1, the controller 13 controls the water pump 36 to operate, so that the water pump 36 draws out the water in the water tank 37 through the hose 35 and transports it to the hollow interior of the sealing plate 32, and then the nozzle 34 sprays the water, so as to flush the filter screen 23 before replacement. The flushed water will flow into the drain tank 15, and then the drain valve 16 can be opened to discharge the sewage, thereby effectively realizing the automatic flushing of the filter screen 23 inside the air filter, avoiding the operator to clean the filter screen 23 after disassembling the air filter, and improving the convenience of cleaning the filter screen 23 in the air filter.

[0028] For details, see Figure 1 One end of the shell 1 is sealed with an air inlet pipe joint 11, the other end of the shell 1 is sealed with an air outlet pipe joint 12, and one side of the outside of the shell 1 is fixedly connected to a controller 13, so that air can enter the shell 1 from the air inlet pipe joint 11 to be filtered, and then go out from the air outlet pipe joint 12.

[0029] For further information, see Figure 1 A gas flow rate sensor 14 is fixedly connected to the top of the gas outlet pipe joint 12, and a monitoring end of the gas flow rate sensor 14 is located inside the gas outlet pipe joint 12, so that the gas flow rate sensor 14 can monitor the gas flow rate inside the gas outlet pipe joint 12 conveniently.

[0030] It is worth noting that see Figure 1 A drainage trough 15 is welded on one side of the bottom of the shell 1, and a drainage valve 16 is sealed at the bottom of the drainage trough 15. The flushing water will flow into the drainage trough 15, and then the drainage valve 16 will be opened to discharge the sewage, thereby improving the convenience of sewage discharge.

[0031] It should be noted that the housing 1 is made of a transparent material, so that the operator can observe the internal components conveniently, so as to prevent the filter frame 21 from deviating from its position;

[0032] The controller 13 is electrically connected to the gas flow rate sensor 14, the electric push rod 31, the drive motor 24 and the water pump 36 through wires;

[0033] The controller 13 is electrically connected to the alarm 17 via a wire.

[0034] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0035] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An air filter, comprising a housing (1), characterized in that: The housing (1) is movably connected to a rotating shaft (2), four filter frames (21) are fixedly connected around the rotating shaft (2), the filter frames (21) are sealed to the inner wall of the housing (1) via sealing sleeves (22), a filter screen (23) is fixedly connected to the center of the filter frame (21), one end of the rotating shaft (2) is fixedly connected to the output end of a drive motor (24), one side of the drive motor (24) is provided with a slot (25) communicating with the interior of the housing (1), and a support plate (3) is installed on one side of the slot (25); The support plate (3) is connected to a sealing plate (32) via an electric push rod (31); a slot (33) is provided at the center of the sealing plate (32); the interior of one end of the sealing plate (32) is hollow, and a plurality of nozzles (34) are installed on the outside; the top end of the sealing plate (32) is sealedly connected to a hose (35); the other end of the hose (35) is connected to a water tank (37) via a water pump (36).

2. An air filter according to claim 1, characterized in that: One end of the housing (1) is sealedly connected to an air inlet pipe joint (11), the other end of the housing (1) is sealedly connected to an air outlet pipe joint (12), and one side of the exterior of the housing (1) is fixedly connected to a controller (13).

3. An air filter according to claim 2, characterized in that: A gas flow rate sensor (14) is fixedly connected to the top end of the gas outlet pipe joint (12), and a monitoring end of the gas flow rate sensor (14) is located inside the gas outlet pipe joint (12).

4. An air filter according to claim 1, characterized in that: A drainage trough body (15) is welded in a communicating manner on one side of the bottom of the housing (1), and a drainage valve (16) is sealed at the bottom end of the drainage trough body (15).

5. An air filter according to claim 1, characterized in that: The height of the slot (33) matches the overall height of the filter frame (21) and the sealing sleeve (22), and the width of the slot (33) matches the width of the filter frame (21) and the sealing sleeve (22).

6. An air filter according to claim 1, characterized in that: The electric push rod (31) is fixedly connected to the top end of the support plate (3), the output end of the electric push rod (31) is fixedly connected to the top end of the sealing plate (32), one end of the sealing plate (32) is sealed to the inner wall of the outer shell (1), and the other end of the sealing plate (32) covers the outside of the groove (25) and is sealed to the outer surface of the outer shell (1).

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