A low resistance and high efficiency air filter

Abstract

The present invention discloses a low-resistance and high-efficiency air filter, which relates to the technical field of filters and comprises a shell, wherein one end of the shell is provided with an air inlet pipe, the other end of the shell is provided with an air outlet pipe, a conversion mechanism is fixedly connected to the inner wall of the shell, a filter cartridge is fixedly connected to the conversion mechanism, a first cavity is formed between the filter cartridge and the shell, a second cavity is provided in the filter cartridge, a discharge mechanism is fixedly connected to the outer wall of the shell, the discharge mechanism is respectively connected to the first cavity and the second cavity, the present invention converts the air filter between two states by arranging a conversion mechanism, backflushes the filter cartridge with the gas that needs to be filtered, thereby cleaning the filter cartridge, reducing the resistance of the air filter, and improving the filtering efficiency of the gas, without additionally arranging a backflushing mechanism and clean air to clean the filter cartridge, thereby reducing the consumption of resources, and there is no need to close the air filter for direct cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of filters, in particular to a low-resistance and high-efficiency air filter. Background Art

[0002] An air filter is a device that captures dust from an airflow and purifies the gas through the action of a filter element. The Chinese patent with application number "202210324282.5" provides an environmentally friendly air filter with low resistance and high filtration efficiency. The application rotates the first filter cartridge and the second filter cartridge through the first gear ring and the third gear ring, so that the scraper cleans the second filter cartridge. At the same time, the connecting cartridge controls the sliding of the control slide rod, thereby driving the annular cleaning brush to clean the second filter cartridge. Alternatively, in the prior art, a recoil mechanism is provided at the air filter outlet and extends to the inside of the filter element, and the air filter is closed to clean the filter element, thereby reducing the resistance during filtration. In the prior art, an additional recoil mechanism is required for cleaning, and the recoil mechanism needs to use clean air to clean the filter element. Cleaning the filter element once consumes more resources. Summary of the invention

[0003] The object of the present invention is to provide a low resistance and high efficiency air filter to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0005] A low-resistance and high-efficiency air filter provided by the present invention comprises a shell, one end of the shell is provided with an air inlet pipe, the other end of the shell is provided with an air outlet pipe, the inner wall of the shell is fixedly connected with a conversion mechanism, the conversion mechanism is fixedly connected with a filter cartridge, a first cavity is formed between the filter cartridge and the shell, a second cavity is provided in the filter cartridge, and the outer wall of the shell is fixedly connected with a discharge mechanism, the discharge mechanism is respectively connected with the first cavity and the second cavity.

[0006] Furthermore, the conversion mechanism includes a sliding rod fixedly connected to the inner wall of the shell, the sliding rod is slidably connected with a slider, the slider is fixedly connected to the filter cartridge, the inner wall of the shell near the lower end of the filter cartridge is fixedly connected with a support cylinder, the inner wall of the support cylinder is slidably connected with a sliding plate, one end of the sliding plate is fixedly connected to the support rod, the support rod is fixedly connected to the lower end of the filter cartridge, the support cylinder and the air outlet pipe are connected via a connecting pipe, the filter cartridge is provided with an opening at one end near the air outlet pipe, the filter cartridge is symmetrically provided with sliding grooves near the opening and are connected to the opening, and a closure is slidably connected in the sliding groove.

[0007] Furthermore, the closing member includes a sealing plate slidably connected to the slide groove, the air outlet pipe is fixedly connected to a fixing rod near the inside of the filter cylinder, the fixing rod is symmetrically hinged with a connecting rod, the connecting rod is hinged to the sealing plate, the air outlet pipe is provided with a closing valve at a position outside the shell, the air inlet pipe extends to one end of the shell and is fixedly connected to a mounting rod, and a cover plate is fixedly connected to the mounting rod.

[0008] Furthermore, the discharge mechanism includes an electric push rod fixedly connected to the bottom end of the shell, the output end of the electric push rod is fixedly connected to the first dust outlet pipe, the first dust outlet pipe is connected to the second dust outlet pipe through a pipe, the second dust outlet pipe extends through the shell and is connected to the filter cartridge, the filter cartridge is provided with a connecting groove at a position corresponding to the second dust outlet pipe, a baffle is slidably connected in the connecting groove, a sliding groove is provided on the baffle, a mounting groove is provided on one side of the connecting groove, a rotating shaft is rotatably connected in the mounting groove, a rotating shaft is fixedly connected to the rotating shaft, an end of the rotating rod away from the rotating shaft is fixedly connected to the connecting shaft, the connecting shaft is located in the sliding groove, an end of the rotating shaft away from the rotating rod is fixedly connected to the connecting rod, an end of the connecting rod away from the rotating shaft is hingedly connected to the drag rod, and the other end of the drag rod is hinged to the second dust outlet pipe.

[0009] Furthermore, the electric push rod pushes the first dust outlet pipe to move and connect with the first cavity in a timely manner.

[0010] Furthermore, the diameter of the cover plate is equal to the outer diameter of the air inlet pipe, and the filter cartridge is closed in due time.

[0011] Furthermore, the travel of the sliding plate is equal to the distance from the air outlet pipe to the opening and the distance from the cover plate to the bottom end of the filter cartridge.

[0012] Furthermore, the air outlet pipe is equal to the opening in size and is connected to the opening at an appropriate time.

[0013] Furthermore, the support cylinder is communicated with the outside of the shell through a control valve.

[0014] Furthermore, the movement of the filter cartridge is used to switch the air intake pipe to a state of being connected to the first cavity and the second cavity.

[0015] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0016] The present invention switches the air filter between two states by providing a conversion mechanism, and uses the gas that needs to be filtered to backflush the filter cartridge, thereby cleaning the filter cartridge, reducing the resistance of the air filter, and improving the filtering efficiency of the gas. There is no need to additionally provide a backflush mechanism and clean air to clean the filter cartridge, thereby reducing resource consumption, and there is no need to close the air filter for direct cleaning, thereby reducing the replacement frequency of the filter cartridge and increasing the service life of the filter cartridge.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 is a side view of the present invention;

[0020] Figure 2 yes Figure 1 Sectional view at AA in the middle;

[0021] Figure 3 yes Figure 2 The enlarged view of point B in the middle;

[0022] Figure 4 yes Figure 2 Enlarged view of point C in the middle;

[0023] Figure 5 It is a schematic diagram of the internal overall structure of the present invention;

[0024] Figure 6 It is a partial structural schematic diagram of the present invention;

[0025] Figure 7 It is a partial structural schematic diagram of the discharge mechanism of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the second state of the air filter of the present invention.

[0027] In the figure:

[0028] 1. Shell; 2. Air inlet pipe; 3. Air outlet pipe; 4. Filter cartridge; 5. First cavity; 6. Second cavity; 7. Sliding rod; 8. Sliding block; 9. Support cartridge; 10. Sliding plate; 11. Support rod; 12. Connecting pipe; 13. Opening; 14. Sliding groove; 15. Closing plate; 16. Fixing rod; 17. Connecting rod; 18. Closing valve; 19. Mounting rod; 20. Cover plate; 21. Electric push rod; 22. First dust outlet pipe; 23. Second dust outlet pipe; 24. Connecting groove; 25. Baffle; 26. Sliding groove; 27. Mounting groove; 28. Rotating shaft; 29. ​​Rotating rod; 30. Connecting shaft; 31. Connecting rod; 32. Drag rod. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0030] See also Figures 1 to 8 The present invention provides a low-resistance and high-efficiency air filter, comprising a shell 1, one end of the shell 1 is provided with an air inlet pipe 2, the other end of the shell 1 is provided with an air outlet pipe 3, the inner wall of the shell 1 is fixedly connected with a conversion mechanism, a filter cartridge 4 is fixedly connected to the conversion mechanism, a first cavity 5 is formed between the filter cartridge 4 and the shell 1, a second cavity 6 is provided in the filter cartridge 4, and an outer wall of the shell 1 is fixedly connected with a discharge mechanism, the discharge mechanism is communicated with the first cavity 5 and the second cavity 6 respectively.

[0031] In the initial state, the gas enters the second cavity from the air inlet pipe 2, enters the first cavity from the second cavity through the filter cartridge 4, and is then discharged through the air outlet pipe 3 to achieve gas filtering. The air filter is put into the second state through the conversion mechanism, that is, the gas first enters the first cavity, enters the second cavity from the first cavity through the filter cartridge 4, and is then discharged from the air outlet pipe 3. When there is a lot of dust on the filter cartridge 4 and the resistance during gas filtering is large, the air filter is put into the second state through the conversion mechanism. At this time, the air outlet pipe 3 is sealed, and the gas enters the second cavity from the first cavity through the filter cartridge 4, and the dust on the inner wall of the second cavity on the filter cartridge 4 is recoiled, so that the dust is discharged through the discharge mechanism, and the gas that needs to be filtered is The body backflushes the filter cartridge 4 to clean the filter cartridge 4, reduces the resistance of the air filter, and improves the filtering efficiency of the gas. There is no need to additionally set up a backflushing mechanism and clean air to clean the filter cartridge 4, which reduces the consumption of resources, and there is no need to close the air filter for direct cleaning. Cleaning the dust on the inner wall of the first cavity on the filter cartridge 4 is the same as the above process. The air filter can filter the gas on both the inside and outside of the filter cartridge, reduces the replacement frequency of the filter cartridge, and increases the service life of the filter cartridge. When backflushing cleaning is performed, most of the dust can be cleaned, and only a small amount of dust remains. When filtering again, very little dust is brought out, which has little effect on the filtered gas.

[0032] See also Figures 2 to 6 The conversion mechanism includes a sliding rod 7 fixedly connected to the inner wall of the shell 1, and a sliding block 8 is slidably connected to the sliding rod 7, and the sliding block 8 is fixedly connected to the filter cartridge 4. A support cylinder 9 is fixedly connected to the inner wall of the shell 1 near the lower end of the filter cartridge 4, and a sliding plate 10 is slidably connected to the inner wall of the support cylinder 9, and one end of the sliding plate 10 is fixedly connected to a support rod 11, and the support rod 11 is fixedly connected to the lower end of the filter cartridge 4. The support cylinder 9 is connected to the air outlet pipe 3 through a connecting pipe 12, and an opening 13 is provided at one end of the filter cartridge 4 near the air outlet pipe 3, and a slide groove 14 is symmetrically provided at a position of the filter cartridge 4 near the opening 13 and is connected to the opening 13, and a closure is slidably connected in the slide groove 14.

[0033] See also Figure 2 and Figure 3 The closing member includes a sealing plate 15 slidably connected to the slide groove 14, the air outlet pipe 3 is fixedly connected to the inside of the filter cartridge 4 with a fixing rod 16, the fixing rod 16 is symmetrically hinged with a connecting rod 17, the connecting rod 17 is hinged to the sealing plate 15, the air outlet pipe 3 is provided with a closing valve 18 at a position outside the shell 1, and the end of the air inlet pipe 2 extending to the inside of the shell 1 is fixedly connected with a mounting rod 19, and a cover plate 20 is fixedly connected to the mounting rod 19.

[0034] The gas passing rate can be monitored by the sensor. When the passing rate is low, that is, there is a lot of dust on the filter cartridge 4, the closing valve 18 is closed to close the outlet pipe 3, while the air inlet pipe 2 continues to take in air, the pressure in the shell 1 increases, and the gas in the outlet pipe 3 enters the support cylinder 9 through the connecting pipe 12, pushing the sliding plate 10 to move. The movement of the sliding plate 10 drives the support rod 11 to move, and the movement of the support rod 11 drives the filter cartridge 4 to move. The movement of the filter cartridge 4 causes the sealing plate 15 to move toward the fixed rod 16, and the connecting rod 17 hinged to the fixed rod 16 and the sealing plate 15 enter the slide groove 14, so that the second cavity is connected to the outlet pipe 3, and the connection state of the first cavity and the outlet pipe 3 is blocked. At the same time, the filter cartridge 4 moves to cause the cover plate 20 to move relatively, so that the cover plate 20 blocks the connection state between the second cavity and the inlet pipe 2, and the inlet pipe 2 is connected to the first cavity, thereby realizing the conversion of the two states of the air filter.

[0035] See also Figure 1 , Figure 4 and Figure 7 The discharge mechanism includes an electric push rod 21 fixedly connected to the bottom end of the housing 1, and the output end of the electric push rod 21 is fixedly connected to a first dust outlet pipe 22, and the first dust outlet pipe 22 is connected to a second dust outlet pipe 23 through a pipeline, and the second dust outlet pipe 23 extends through the housing 1 and is connected to the filter cartridge 4. The filter cartridge 4 is provided with a connecting groove 24 at a position corresponding to the second dust outlet pipe 23, and a baffle 25 is slidably connected in the connecting groove 24, and a sliding groove 26 is provided on the baffle 25. A mounting groove 27 is provided on one side of the connecting groove 24, and a rotating shaft 28 is rotatably connected in the mounting groove 27, and a rotating rod 29 is fixedly connected to the rotating shaft 28, and an end of the rotating rod 29 away from the rotating shaft 28 is fixedly connected to a connecting shaft 30, and the connecting shaft 30 is located in the sliding groove 26, and an end of the rotating shaft 28 away from the rotating rod 29 is fixedly connected to a connecting rod 31, and an end of the connecting rod 31 away from the rotating shaft 28 is hinged to a drag rod 32, and the other end of the drag rod 32 is hinged to the second dust outlet pipe 23.

[0036] In the initial state, the first dust outlet pipe 22 is connected to the first cavity, and the baffle 25 blocks the connection between the second dust outlet pipe 23 and the second cavity. When converted to the second state, the electric push rod 21 pushes the first dust outlet pipe 22 to block the connection between the first dust outlet pipe 22 and the first cavity, so that the first cavity is relatively sealed. At the same time, when the filter cartridge 4 moves, the second dust outlet pipe 23 drives the drag rod 32 to move, and the movement of the drag rod 32 drives the connecting rod 31 to rotate. The rotation of the connecting rod 31 drives the rotating shaft 28 to rotate. The rotation of the rotating shaft 28 drives the rotating rod 29 to rotate. The rotation of the rotating rod 29 drives the baffle 25 to move, so that the second dust outlet pipe 23 is connected to the second cavity.

[0037] See also Figure 1 and Figure 5The electric push rod 21 pushes the first dust outlet pipe 22 to move and connect with the first cavity 5 in time, so that dust can be discharged from the shell 1 through the first dust outlet pipe 22 during backflushing, and the inner and outer walls of the filter cartridge 4 located in the first cavity are cleaned. When backflushing is not performed, the electric push rod 21 seals the first dust outlet pipe 22 to prevent gas from passing through.

[0038] See also Figure 6 The diameter of the cover plate 20 is equal to the outer diameter of the air inlet pipe 2, and the filter cartridge 4 is closed in time, so that the gas can be converted between the first cavity and the second cavity.

[0039] See also Figure 6 The travel of the sliding plate 10 is equal to the distance from the air outlet pipe 3 to the opening 13 and the distance from the cover plate 20 to the bottom end of the filter cartridge 4, thereby realizing the conversion of the two states of the air filter and preventing the gas from entering the cavity of another state when there is a gap in one state.

[0040] See also Figure 3 The outlet pipe 3 is equal in size to the opening 13 and is connected to the opening 13 at an appropriate time. When the outlet pipe 3 cooperates with the opening 13, the gas is prevented from flowing out directly from the gap between the outlet pipe 3 and the opening 13.

[0041] The support tube 9 is connected to the outside of the housing 1 through a control valve. The support tube 9 is connected to the outside through the control valve to control the lifting and lowering of the sliding plate 10.

[0042] See also Figure 2 and Figure 8 The movement of the filter cartridge 4 is used to switch the state of the air intake pipe 2 being connected to the first cavity 5 and the second cavity 6, so as to complete the cleaning of the inner wall and the outer wall of the filter cartridge 4.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low resistance and high efficiency air filter, characterized in that: The invention comprises a shell (1), one end of the shell (1) is provided with an air inlet pipe (2), the other end of the shell (1) is provided with an air outlet pipe (3), the inner wall of the shell (1) is fixedly connected with a conversion mechanism, the conversion mechanism is fixedly connected with a filter cartridge (4), a first cavity (5) is formed between the filter cartridge (4) and the shell (1), a second cavity (6) is provided in the filter cartridge (4), and the outer wall of the shell (1) is fixedly connected with a discharge mechanism, the discharge mechanism is respectively connected with the first cavity (5) and the second cavity (6); The conversion mechanism comprises a sliding rod (7) fixedly connected to the inner wall of the housing (1), a sliding block (8) being sleeved on the sliding rod (7) and being slidably connected thereto, the sliding block (8) being fixedly connected to the filter cartridge (4), a support cartridge (9) being fixedly connected to the inner wall of the housing (1) near the lower end of the filter cartridge (4), a sliding plate (10) being slidably connected to the inner wall of the support cartridge (9), one end of the sliding plate (10) being fixedly connected to a support rod (11), the support rod (11) being fixedly connected to the lower end of the filter cartridge (4), the support cartridge (9) being connected to the air outlet pipe (3) via a connecting pipe (12), an opening (13) being provided at one end of the filter cartridge (4) near the air outlet pipe (3), a sliding groove (14) being symmetrically provided on the filter cartridge (4) near the opening (13) and being connected to the opening (13), a sealing member being slidably connected in the sliding groove (14); The closure member comprises a sealing plate (15) slidably connected to the slide groove (14); the air outlet pipe (3) is fixedly connected to a fixing rod (16) near the inside of the filter cartridge (4); a connecting rod (17) is symmetrically hinged on the fixing rod (16); the connecting rod (17) is hinged to the sealing plate (15); a closing valve (18) is provided at a position of the air outlet pipe (3) outside the shell (1); one end of the air inlet pipe (2) extending to the inside of the shell (1) is fixedly connected to a mounting rod (19); and a cover plate (20) is fixedly connected to the mounting rod (19).

2. A low resistance high efficiency air filter according to claim 1, characterized in that: The discharge mechanism comprises an electric push rod (21) fixedly connected to the bottom end of the housing (1); the output end of the electric push rod (21) is fixedly connected to a first dust outlet pipe (22); the first dust outlet pipe (22) is connected to a second dust outlet pipe (23) via a pipeline; the second dust outlet pipe (23) extends through the housing (1) and is connected to the filter cartridge (4); a connection groove (24) is provided at a position of the filter cartridge (4) corresponding to the second dust outlet pipe (23); a baffle (25) is slidably connected to the connection groove (24); a sliding groove (26) is provided on the baffle (25); and the connection groove (24) is provided with a plurality of sliding grooves (26) disposed on the baffle (25). A mounting groove (27) is provided on one side of the sliding groove (24), a rotating shaft (28) is rotatably connected in the mounting groove (27), a rotating rod (29) is fixedly connected to the rotating shaft (28), an end of the rotating rod (29) away from the rotating shaft (28) is fixedly connected to a connecting shaft (30), the connecting shaft (30) is located in the sliding groove (26), an end of the rotating shaft (28) away from the rotating rod (29) is fixedly connected to a connecting rod (31), an end of the connecting rod (31) away from the rotating shaft (28) is hingedly connected to a drag rod (32), and the other end of the drag rod (32) is hingedly connected to the second dust outlet pipe (23).

3. A low resistance high efficiency air filter according to claim 2, characterized in that: The electric push rod (21) pushes the first dust outlet pipe (22) to move and connect with the first cavity (5) in due time.

4. A low resistance high efficiency air filter according to claim 1, characterized in that: The diameter of the cover plate (20) is equal to the outer diameter of the air inlet pipe (2), and the filter cartridge (4) is closed at an appropriate time.

5. A low resistance high efficiency air filter according to claim 1, characterized in that: The travel of the sliding plate (10) is equal to the distance from the air outlet pipe (3) to the opening (13) and the distance from the cover plate (20) to the bottom end of the filter cartridge (4).

6. A low resistance high efficiency air filter according to claim 1, characterized in that: The air outlet pipe (3) is equal in size to the opening (13) and is connected to the opening (13) at an appropriate time.

7. A low resistance high efficiency air filter according to claim 1, characterized in that: The support cylinder (9) is connected to the outside of the housing (1) via a control valve.

8. A low resistance high efficiency air filter according to claim 1, characterized in that: The movement of the filter cartridge (4) is used to switch the air intake pipe (2) to a state of being connected to the first cavity (5) and the second cavity (6).

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