Air filter with multiple air inlets

Abstract

The utility model discloses an air filter with multiple air inlets, and relates to the technical field related to filtration. The air filter comprises a filter cartridge, a cartridge cover, an air outlet pipe, a transfer shell, a turntable and filter elements, the cartridge cover covers the filter cartridge, the turntable is rotatably connected to the inner bottom of the filter cartridge, the three filter elements distributed in an annular array are fixed to the upper end of the turntable, the transfer shell covers the upper ends of the three filter elements jointly, and the air outlet pipe is fixed to the top end of the transfer shell. The upper part of the air outlet pipe extends out of the cylinder cover; three air inlet pipes distributed in an annular array are fixed to the circumferential side of the filter cartridge in a penetrating mode, and baffles are fixed to the positions, close to the air inlet pipes, of the inner wall of the filter cartridge. Through the arrangement of the air inlet pipe, the filter cartridge, the filter element, the cartridge cover, the turntable, the baffle and the filter element, the problems that the design of a single air inlet of the air filter cannot meet the requirement of large air inflow, the filtering effect is easy to lose at the position of the filter element opposite to the air inlet, the filter element is inconvenient to replace, and all positions of the filter element cannot be in uniform contact with air are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to filtration, and in particular relates to an air filter with multiple air inlets. Background Art

[0002] An air filter (or "air filter") is a device used to filter suspended particulate matter and impurities from the air. It is mostly used in mechanical equipment that requires air intake, such as in vehicle engine intake systems and hydraulic systems. Its primary function is to remove impurities such as dust and sand from the air, ensuring clean air entering the equipment. While various air filters are used to filter air, prevent pollution, and minimize equipment damage, current air filters still suffer from the following drawbacks in actual use:

[0003] 1. First, various air filters have only a single filter element inside, with an air inlet and an air outlet. This will reduce the air intake efficiency and completely rely on the air intake of a single air inlet. When sufficient air intake is required, the setting of a single air inlet is obviously unable to meet the requirements.

[0004] 2. Secondly, in conventional air filters, the positions of the air inlet and the filter element are fixed. The filter element is facing the air inlet, which is the most direct filtering position. Over time, this position will be blocked first, filter the most debris, and lose the filtering effect the fastest.

[0005] 3. Most conventional air filters are disposable and their internal consumables cannot be replaced, which is too costly.

[0006] 4. Finally, because the position of the filter element cannot be changed, the amount of air contacted by each position of the filter element is inconsistent, which can easily cause part of the filter element to be blocked and unusable, while another part can still be used. At this time, either replace the filter element with a new one, or continue to use it but the filtering effect will be reduced. Utility Model Content

[0007] The purpose of the utility model is to provide an air filter with multiple air inlets. By arranging an air inlet pipe, a filter cartridge, a filter element, a cartridge cover, a turntable, a baffle and a filter element, the problems that the design of an air filter with a single air inlet cannot meet the demand for a large air intake volume, the filtering effect is easily lost at the position where the filter element is facing the air inlet, the filter element is not easy to replace, and the various positions of the filter element cannot be evenly contacted with the air are solved.

[0008] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0009] The utility model is an air filter with multiple air inlets, comprising a filter cartridge, a cartridge cover, an air outlet pipe, a transfer shell, a turntable and a filter element. The upper cover of the filter cartridge is provided with a cartridge cover, the inner bottom of the filter cartridge is rotatably connected to the turntable, three filter elements distributed in a circular array are fixed to the upper end of the turntable, the upper ends of the three filter elements are jointly covered with a transfer shell, the top of the transfer shell is fixed with an air outlet pipe, and the upper part of the air outlet pipe extends out of the cartridge cover;

[0010] Three air inlet pipes distributed in a circular array are fixed through the circumference of the filter cartridge, and a baffle is fixed on the inner wall of the filter cartridge near each air inlet pipe;

[0011] The filter element comprises an upper end cover, a lower end cover, and a frame fixed between the upper end cover and the lower end cover, and an arc plate is fixed on the outer periphery of the frame.

[0012] Furthermore, a first ring strip is fixed at the outer edge of the upper end of the filter cartridge, and a second ring strip is fixed at the outer edge of the lower end of the cartridge cover, and the first ring strip and the second ring strip have the same size.

[0013] Furthermore, a threaded groove is provided in the upper port of the filter cartridge, and a threaded ring is fixed on the lower port of the cartridge cover, and the threaded ring is screwed into the threaded groove.

[0014] Furthermore, the filter element further comprises a pleated filter material, and the filter material is located inside the frame, and the upper and lower ends of the filter material are respectively bonded and fixed to the upper end cover and the lower end cover.

[0015] Furthermore, a threaded head is fixed to the bottom of the lower end cover, and three screw holes distributed in a circular array are provided on the turntable, and the threaded heads under the three lower end covers are screwed into the screw holes.

[0016] Furthermore, three curved air outlet channels are provided in the transfer shell, and the upper parts of the three air outlet channels are connected to each other, the upper ports of the air outlet channels are connected to the inner cavity of the air outlet pipe, and the lower ports of the three air outlet channels are respectively arranged outside the ports of the upper end covers of the three filter elements, and a sealing gasket is also fixed on the bottom surface of the transfer shell, and the sealing gasket is located between the transfer shell and the upper end cover.

[0017] Furthermore, a bearing is fixed at the center of the upper portion of the cylinder cover, and the outer portion of the air outlet pipe is rotatably connected to the bearing.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model solves the problem that the design of a single air inlet of an air filter cannot meet the demand for large air intake by arranging an air intake pipe, a filter cartridge, a filter element and a cartridge cover; the filter cartridge serves as the main filtering place, the upper end of the filter cartridge is closed by a cartridge cover, and air is taken in by three air intake pipes as air inlets, which can meet the demand for large air intake. Inlet pipes can be further added according to actual needs to realize the use demand of large air intake.

[0020] 2. The utility model solves the problem that the filtering effect of the filter element is easily lost quickly at the position facing the air inlet by arranging a turntable, a baffle, an air intake pipe and a filter element. When the air enters the air intake pipe, it directly hits the baffle and does not blow directly to the filter element. This prevents the unfiltered air from being concentratedly blown directly to a certain position of the filter element, thereby ensuring the normal filtering use of the filter element. In addition, an arc plate is arranged outside the filter element. After the air enters the air intake pipe, it blows along the baffle toward the arc plate, forming an annular vortex, thereby driving the filter element to rotate with the turntable as the center. The filter element moves, so that the air it contacts is more uniform, and the phenomenon of local concentrated filtration will not occur.

[0021] 3. The utility model solves the problem of inconvenient replacement of the filter element in the air filter by providing a turntable and a filter element; the filter element is screwed into the screw hole in the turntable through the threaded head at the bottom of the lower end cover to achieve fixation, and the top of the filter element is pressed by the cylinder cover and the middle turntable, so that the filter element has a detachable structure, which is convenient for replacing the filter element without replacing the entire filter.

[0022] 4. The utility model solves the problem that all positions of the filter element in the air filter cannot be evenly contacted with the air by arranging a turntable, a filter element and a middle turntable; the air is taken in by the intake pipe and blown to the baffle, which is guided by the baffle to blow it to the arc plate in the filter element. The three intake pipes take in air at the same time to form an annular vortex, thereby rotating the filter element and the turntable, so that the air at all positions entering the filter cartridge can be contacted and filtered, making the contact more uniform, and thus preventing the filtration amount at all positions of the filter element from being inconsistent, and performing the filtration process evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0024] Figure 1 A three-dimensional diagram of an air filter with multiple air inlets;

[0025] Figure 2 This is a cross-sectional view after the cylinder cover is removed;

[0026] Figure 3 This is a bottom-up connection diagram of the transfer housing, filter element, and turntable;

[0027] Figure 4 for Figure 3 Disassembly diagram;

[0028] Figure 5 is a cross-sectional view of the transfer shell;

[0029] Figure 6 This is a bottom view of the cylinder cover.

[0030] Reference numerals:

[0031] 1. Filter cartridge; 101. Air inlet pipe; 102. Ring strip 1; 103. Baffle; 104. Threaded groove; 2. Cartridge cover; 201. Bearing; 202. Ring strip 2; 203. Threaded ring; 3. Air outlet pipe; 4. Intermediate housing; 401. Sealing gasket; 402. Air outlet channel; 5. Turntable; 6. Filter element; 601. Filter material; 602. Frame; 603. Arc plate; 604. Upper end cover; 605. Lower end cover; 606. Threaded head. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] See also Figure 1-6 As shown, the utility model is an air filter with multiple air inlets, comprising a filter cartridge 1, a cartridge cover 2, an air outlet pipe 3, a transfer shell 4, a turntable 5 and a filter element 6. The upper cover of the filter cartridge 1 is provided with a cartridge cover 2, the inner bottom of the filter cartridge 1 is rotatably connected to the turntable 5, and three filter elements 6 distributed in a circular array are fixed to the upper end of the turntable 5. The upper ends of the three filter elements 6 are jointly covered with a transfer shell 4, the top of the transfer shell 4 is fixed with an air outlet pipe 3, and the upper part of the air outlet pipe 3 extends out of the cartridge cover 2;

[0034] First, the filter element 6 is placed in the filter cartridge 1, which is sealed with a cartridge cover 2. The filter element 6 is fixed to the turntable 5 and can rotate with the turntable 5. The air filtered by the filter element 6 is transferred through the transfer housing 4 and then output to the corresponding equipment through the outlet pipe 3.

[0035] Three air inlet pipes 101 arranged in a circular array are fixed through the circumference of the filter cartridge 1. A baffle 103 is fixed on the inner wall of the filter cartridge 1 near each air inlet pipe 101.

[0036] The air inlet pipe 101 is used as an air inlet to input external air and blow it onto the baffle 103 inside the filter cartridge 1. The air is redirected by the inclined baffle 103 to prevent the air from blowing directly onto the surface of the filter element 6.

[0037] The filter element 6 includes an upper end cover 604, a lower end cover 605, and a frame 602 fixed between the upper end cover 604 and the lower end cover 605. An arc plate 603 is fixed to the outer periphery of the frame 602.

[0038] The filter element 6 further includes a pleated filter material 601, and the filter material 601 is located inside the frame 602, and the upper and lower ends of the filter material 601 are respectively bonded and fixed to the upper end cover 604 and the lower end cover 605;

[0039] The filter element 6 is composed of a frame 602 fixed between the upper end cover 604 and the lower end cover 605 as the main body. The filter material 601 inside the frame 602 serves as the main consumable material for filtering air. The air entering the filter cartridge 1 is filtered by the filter material 601 and then introduced into the center of the filter element 6, and then guided to the port of the upper end cover 604 into the transfer shell 4.

[0040] A ring strip 102 is fixed at the outer edge of the upper end of the filter cartridge 1, and a ring strip 202 is fixed at the outer edge of the lower end of the cartridge cover 2, and the sizes of the ring strip 102 and the ring strip 202 are the same; the setting of the ring strip 102 and the ring strip 202 facilitates the connection between the filter cartridge 1 and the cartridge cover 2, and additional fasteners such as bolts and nuts can be added to strengthen the fixation.

[0041] A threaded groove 104 is provided in the upper end of the filter cartridge 1, and a threaded ring 203 is fixed on the lower end of the cartridge cover 2, and the threaded ring 203 is screwed into the threaded groove 104;

[0042] A bearing 201 is fixed at the center of the upper portion of the cylinder cover 2, and the outer portion of the air outlet pipe 3 is rotatably connected to the bearing 201;

[0043] When installing the cylinder cover 2, align the outlet channel 402 at the bottom of the intermediate shell 4 with the upper end cover 604 in the filter element 6, and then rotate the cylinder cover 2 to screw the threaded ring 203 into the threaded groove 104 to complete the installation and tightening. During this process, since the outlet pipe 3 is rotationally connected to the bearing 201, no motion interference will occur. The cylinder cover 2 rotates, and the outlet pipe 3 does not rotate.

[0044] A threaded head 606 is fixed to the bottom of the lower end cover 605. The turntable 5 is provided with three screw holes distributed in a circular array, and the threaded heads 606 under the three lower end covers 605 are screwed into the screw holes;

[0045] When installing the filter element 6, align the threaded head 606 of the lower end cover 605 with the screw hole in the turntable 5 and screw it in to install the filter element 6 and the turntable 5. When removing, perform the reverse operation.

[0046] Three curved air outlet channels 402 are provided in the transfer shell 4, and the upper parts of the three air outlet channels 402 are connected to each other, the upper ports of the air outlet channels 402 are connected to the inner cavity of the air outlet pipe 3, and the lower ports of the three air outlet channels 402 are respectively mounted on the outside of the ports of the upper end covers 604 in the three filter elements 6, and a sealing gasket 401 is also fixed to the bottom surface of the transfer shell 4, and the sealing gasket 401 is located between the transfer shell 4 and the upper end cover 604.

[0047] Air filtered by the filter element 6 enters the air outlet channel 402 in the transfer housing 4 and is then directed to the air outlet pipe 3 for output to external equipment. The arrangement of the sealing gasket 401 allows the sealing gasket 401 to abut against the upper end cover 604 of the filter element 6 when the transfer housing 4 moves downward, thereby improving the sealing performance and preventing unfiltered gas from entering the transfer housing 4.

[0048] The specific working principle of the present invention is as follows: first, install the filter element 6, align the threaded head 606 of the lower end cover 605 with the screw hole in the turntable 5, and screw it in to realize the installation of the filter element 6 and the turntable 5. When disassembling, the reverse operation can be performed. Then install the cylinder cover 2, align the outlet channel 402 at the bottom of the intermediate shell 4 with the upper end cover 604 in the filter element 6, and then rotate the cylinder cover 2 to screw the threaded ring 203 into the threaded groove 104 to complete the installation and tightening. The sealing gasket 401 will increase the sealing between the intermediate shell 4 and the upper end cover 604 of the filter element 6. After that, filtering can be carried out. The air inlet pipe 101 is used as an air inlet to input external air and blow it onto the baffle 103 in the filter cartridge 1. It is redirected by the inclined baffle 103 and will not blow directly onto the filter element 6. This will prevent the unfiltered air from being blown directly onto a certain position of the filter element 6. After the air is blown into the air inlet pipe 101, it blows along the baffle 103 toward the arc plate 603, forming an annular vortex, thereby driving the filter element 6 to rotate with the turntable 5 as the center. The filter element 6 moves, making the air it contacts more uniform.

[0049] The filter element 6 is composed of a frame 602 fixed between the upper end cover 604 and the lower end cover 605 as its main body. The filter material 601 in the frame 602 serves as the main consumable for filtering air. The air entering the filter cartridge 1 is filtered by the filter material 601 and then introduced into the center of the filter element 6. Then, it enters the air outlet channel 402 in the intermediate shell 4 through the port of the upper end cover 604, and is then concentratedly guided to the air outlet pipe 3 to be exported to external equipment. When the filter element 6 and the turntable 5 rotate, the air outlet pipe 3 will also rotate in the bearing 201.

[0050] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are within the scope of protection of the present invention.

Claims

1. An air filter with multiple air inlets, comprising a filter cartridge (1), a cartridge cover (2), an air outlet pipe (3), a transfer shell (4), a rotating disk (5) and a filter element (6), characterized in that: The filter cartridge (1) is provided with a cartridge cover (2) on its upper side, the inner bottom of the filter cartridge (1) is rotatably connected to a turntable (5), three filter elements (6) arranged in a circular array are fixed to the upper end of the turntable (5), the upper ends of the three filter elements (6) are commonly covered with a transfer shell (4), the top of the transfer shell (4) is fixed with an air outlet pipe (3), and the upper part of the air outlet pipe (3) extends out of the cartridge cover (2); Three air inlet pipes (101) distributed in a circular array are fixedly passed through the circumference of the filter cartridge (1), and a baffle (103) is fixedly disposed on the inner wall of the filter cartridge (1) at a position close to each air inlet pipe (101); The filter element (6) comprises an upper end cover (604), a lower end cover (605), and a frame (602) fixed between the upper end cover (604) and the lower end cover (605), and an arc plate (603) is fixed to the outer periphery of the frame (602).

2. The air filter with multiple air inlets according to claim 1, characterized in that: A first ring strip (102) is fixed at the outer edge of the upper end of the filter cartridge (1), and a second ring strip (202) is fixed at the outer edge of the lower end of the cartridge cover (2); and the first ring strip (102) and the second ring strip (202) have the same size.

3. The air filter with multiple air inlets according to claim 1, characterized in that: A thread groove (104) is provided in the upper port of the filter cartridge (1), a thread ring (203) is fixed on the lower port of the cartridge cover (2), and the thread ring (203) is screwed into the thread groove (104).

4. The air filter with multiple air inlets according to claim 1, characterized in that: The filter element (6) further comprises a pleated filter material (601), and the filter material (601) is located inside the frame (602), and the upper and lower ends of the filter material (601) are respectively bonded and fixed to the upper end cover (604) and the lower end cover (605).

5. The air filter with multiple air inlets according to claim 1, characterized in that: A threaded head (606) is fixed to the bottom of the lower end cover (605), and three screw holes distributed in a circular array are provided on the turntable (5), and the threaded heads (606) under the three lower end covers (605) are screwed into the screw holes.

6. The air filter with multiple air inlets according to claim 1, characterized in that: Three curved air outlet channels (402) are provided in the transfer shell (4), and the upper parts of the three air outlet channels (402) are interconnected, the upper ports of the air outlet channels (402) are connected to the inner cavity of the air outlet pipe (3), and the lower ports of the three air outlet channels (402) are respectively sleeved outside the ports of the upper end covers (604) of the three filter elements (6), and a sealing gasket (401) is fixed to the bottom surface of the transfer shell (4), and the sealing gasket (401) is located between the transfer shell (4) and the upper end cover (604).

7. The air filter with multiple air inlets according to claim 1, characterized in that: A bearing (201) is fixed at the center of the upper portion of the cylinder cover (2), and the outer portion of the air outlet pipe (3) is rotatably connected to the bearing (201).

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