Air circulation filtering equipment with filter screen convenient to disassemble and assemble

Abstract

The utility model discloses air circulation filtering equipment with a filter screen convenient to disassemble and assemble, and relates to the field of installation and disassembly of a filter element of the air filtering equipment, the air circulation filtering equipment comprises a shell, an upper cover is rotationally installed at the top end of the shell, and an air inlet hole is formed in the top end of the upper cover; a handle hole is formed in the position, located on one side of the air inlet hole, of the top end of the shell, the air inlet hole is of a through hole type structure, the bottom end of the handle hole is of a closed structure, an intercepting net of a porous structure is installed on the inner wall of an exhaust port below an end plate of the shell, and a suction fan is installed on the inner wall of the shell. The suction fan is fixedly installed in an inner cavity of the shell through a support mechanism, and the support mechanism is provided with a filter element through a butt joint limiting mechanism. According to the utility model, the butt-joint limiting mechanism is arranged, the butt-joint limiting mechanism can be used for quickly positioning and limiting the filter element, and the butt-joint limiting mechanism is matched with the elastic resetting of the sealing element, so that a relatively stable mounting effect can be achieved, and the effects of convenient mounting and dismounting are achieved.

Description

Technical Field

[0001] This utility model relates to the field of installation and removal of filter elements in air filtration equipment, specifically an air circulation filtration device with a convenient filter screen for easy installation and removal. Background Technology

[0002] An air circulation filtration device is a device that filters impurities and dust from the air after it is drawn in, thereby purifying the air.

[0003] After prolonged use, filter elements need to be replaced. Existing filter elements are generally fixed with bolts, which is a relatively stable method, but it takes a long time and is not convenient when replacing the filter element. Utility Model Content

[0004] The purpose of this utility model is to provide an air circulation filtration device with a convenient filter screen that can be easily disassembled and installed, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air circulation filtration device with a conveniently detachable filter screen, comprising a housing, a top cover rotatably mounted on the top of the housing, an air inlet hole on the top of the top cover, a handle hole on one side of the top of the housing located at the air inlet hole, the air inlet hole being a through-hole structure, the bottom of the handle hole being a closed structure, a porous intercepting mesh installed on the inner wall of the exhaust port below the end plate of the housing, a suction fan installed on the inner wall of the housing, the suction fan being fixedly installed in the inner cavity of the housing via a bracket mechanism, a filter element being installed on the bracket mechanism via a docking limiting mechanism, the docking limiting mechanism being distributed around the top plate of the bracket mechanism and the filter element.

[0006] As a further embodiment of this utility model: the support mechanism includes a support frame integrally formed on the upper part of the inner wall of the outer shell, a circular hole for the filter element to move downward is opened at the center of the support frame, an mounting plate is fixedly installed at the bottom end of the support frame by a vertical rod, the motor part of the suction fan is installed at the bottom end of the mounting plate, the fan blade part of the suction fan is located above the mounting plate, the output shaft of the suction fan passes through the mounting plate and is rotatably connected to the mounting plate, and a sealing ring is installed at the mating position between the top surface of the mounting plate and the bottom end plate of the filter element.

[0007] As a further embodiment of this utility model: the docking limiting mechanism includes positioning pins integrally formed at the four corners of the top of the support frame, the positioning pins protruding upwards, a rotating plate rotatably mounted on the top of the positioning pins, and a limiting plate for limiting the rotating plate mounted on the top of the positioning pins.

[0008] As a further embodiment of this utility model: the docking limiting mechanism further includes a protruding ear integrally formed on the outer periphery of the top plate of the filter element, a docking hole is provided at the center of the arc-shaped portion of the protruding ear, and a strip-shaped hole is provided on the protruding ear along the extension direction of the protruding ear, the strip-shaped hole being connected to the docking hole.

[0009] As a further improvement of this utility model: the inner diameter of the mating hole is equal to the outer diameter of the positioning pin, and the width of the rotating plate is equal to the width of the strip hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting a docking limit mechanism, the filter element can be quickly positioned and restricted. In addition, with the elastic reset of the seal, a relatively stable installation effect can be achieved, realizing convenient installation and disassembly. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the installation of the filter element of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0015] Figure 4 For the present utility model Figure 3 Enlarged view of a portion of point A in the middle.

[0016] In the diagram: 1. Outer shell; 2. Top cover; 3. Air inlet; 4. Handle hole; 5. Interception net; 6. Support frame; 7. Filter element; 8. Protruding ear; 9. Docking hole; 10. Strip hole; 11. Mounting plate; 12. Sealing ring; 13. Fan; 14. Positioning pin; 15. Rotating plate; 16. Limiting plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4In this embodiment of the present invention, an air circulation filtration device with a conveniently detachable filter screen includes a housing 1. A top cover 2 is rotatably mounted on the top of the housing 1. An air inlet 3 is opened on the top of the top of the top cover 2. A handle hole 4 is opened on one side of the top of the housing 1 at the air inlet 3. The air inlet 3 is a through-hole structure, and the bottom of the handle hole 4 is a closed structure. A porous intercepting mesh 5 is installed on the inner wall of the exhaust port below the end plate of the housing 1. A suction fan 13 is installed on the inner wall of the housing 1. The suction fan 13 is fixedly installed in the inner cavity of the housing 1 through a bracket mechanism. A filter element 7 is installed on the bracket mechanism through a docking limiting mechanism. The docking limiting mechanism is distributed on the outer periphery of the top plate of the bracket mechanism and the filter element 7.

[0019] In this embodiment: First, when disassembling the filter element 7, the upper cover 2 is opened by pulling the handle hole 4. After the upper cover 2 is opened, the docking limiting mechanism connected to the bracket mechanism is rotated so that the docking limiting mechanism on the bracket mechanism is aligned with another docking limiting mechanism on the filter element 7 in the vertical direction. At this time, the filter element 7 can be pulled upward. The upward-moving filter element 7 separates from the bracket mechanism and can be disassembled. After disassembly, a new filter element 7 can be replaced and installed. After installation, the docking limiting mechanism is rotated again to limit the installation of the filter element 7. After installation, the upper cover 2 can be closed.

[0020] It should be noted that the top of the outer shell 1 is connected to the upper cover 2 by magnetic attraction. Specifically, a positive magnet is embedded in the bottom of the upper cover 2 after it is rotated and reset, and a negative magnet is embedded in the top of the outer shell 1. After the upper cover 2 is closed, the positive magnet and the negative magnet come into contact, and the upper cover 2 is limited in the closed state under the action of magnetic attraction.

[0021] Please refer to this carefully. Figure 2 The support mechanism includes a support frame 6 integrally formed on the upper part of the inner wall of the outer shell 1. A circular hole is opened at the center of the support frame 6 for the filter element 7 to move downward. The bottom end of the support frame 6 is fixedly installed with a mounting plate 11 by a vertical rod. The motor part of the suction fan 13 is installed at the bottom end of the mounting plate 11. The fan blade part of the suction fan 13 is located above the mounting plate 11. The output shaft of the suction fan 13 passes through the mounting plate 11 and is rotatably connected to the mounting plate 11. A sealing ring 12 is installed at the mating position between the top surface of the mounting plate 11 and the bottom end plate of the filter element 7.

[0022] In this embodiment: When installing or removing the filter element 7, the filter element 7 moves up and down in the center hole of the support frame 6 during the movement process. When a new filter element 7 is installed, since the bottom plate of the filter element 7 has an annular hollow structure, it will not contact the fan blade of the suction fan 13 until the bottom plate of the filter element 7 contacts the mounting plate 11. At this time, a certain downward pressure is applied to the filter element 7, and the sealing ring 12 is deformed under pressure. Then, the docking limiting mechanism at the top of the support frame 6 is rotated to limit the filter element 7 and restrict the filter element 7 to the current position. At this time, the sealing ring 12 is in a deformed state, sealing the position where the bottom plate of the filter element 7 contacts the mounting plate 11.

[0023] After the device is powered on and started, the suction fan 13 runs. The rotating fan blades generate suction during rotation, drawing in outside air. After being filtered by the filter element 7, the air is discharged from the interception net 5, thus purifying the dust in the air.

[0024] Please refer to this carefully. Figure 2 and Figure 4 The docking limiting mechanism includes positioning pins 14 integrally formed at the four corners of the top of the support frame 6. The positioning pins 14 protrude upwards, and a rotating plate 15 is rotatably mounted on the top of the positioning pins 14. A limiting plate 16 is also installed on the top of the positioning pins 14 to limit the rotation plate 15. The docking limiting mechanism also includes a protruding ear 8 integrally formed on the outer periphery of the top plate of the filter element 7. A docking hole 9 is provided at the center of the arc-shaped part of the protruding ear 8. A strip hole 10 is provided on the protruding ear 8 along the extension direction of the protruding ear 8. The strip hole 10 is connected to the docking hole 9. The inner diameter of the docking hole 9 is equal to the outer diameter of the positioning pin 14. The width of the rotating plate 15 is equal to the width of the strip hole 10.

[0025] In this embodiment: During the installation of the filter element 7, the mating hole 9 on the protruding ear 8 needs to be aligned with the positioning pin 14. Then, the filter element 7 is lowered. After the filter element 7 is lowered to the lowest position, the rotating plate 15 is located directly above the strip hole 10, and the two are aligned. Then, a rotational force is applied to the rotating plate 15, and the rotating plate 15 rotates and is misaligned with the strip hole 10, which limits the top plate of the filter element 7 and restricts the filter element 7 to the current position.

[0026] When disassembling the filter element 7, the rotating plate 15 is rotated in the opposite direction. During the reverse rotation, the rotating plate 15 gradually approaches the limiting plate 16 until the rotating plate 15 contacts the limiting plate 16. At this time, the rotating plate 15 and the strip hole 10 are aligned in the vertical direction, and the filter element 7 can be lifted and disassembled.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An air circulation filtering device with filter screen convenient to disassemble and assemble, comprising a shell (1), characterized in that, The top of the outer shell (1) is rotatably mounted with a top cover (2). The top of the top cover (2) is provided with an air inlet (3). The top of the outer shell (1) is provided with a handle hole (4) on one side of the air inlet (3). The air inlet (3) is a through hole structure. The bottom of the handle hole (4) is a closed structure. The inner wall of the exhaust port below the end plate of the outer shell (1) is equipped with a multi-hole structure interception net (5). The inner wall of the outer shell (1) is equipped with a suction fan (13). The suction fan (13) is fixedly installed in the inner cavity of the outer shell (1) through a bracket mechanism. The bracket mechanism is equipped with a filter element (7) through a docking limiting mechanism. The docking limiting mechanism is distributed on the outer periphery of the top plate of the bracket mechanism and the filter element (7).

2. The air circulation filtering device with filter screen convenient to disassemble and assemble according to claim 1, characterized in that, The support mechanism includes a support frame (6) integrally formed on the upper part of the inner wall of the outer shell (1). A circular hole is provided at the center of the support frame (6) for the filter element (7) to move downward. An mounting plate (11) is fixedly installed at the bottom end of the support frame (6) by a vertical rod. The motor part of the suction fan (13) is installed at the bottom end of the mounting plate (11). The fan blade part of the suction fan (13) is located above the mounting plate (11). The output shaft of the suction fan (13) passes through the mounting plate (11) and is rotatably connected to the mounting plate (11). A sealing ring (12) is installed at the mating position between the top surface of the mounting plate (11) and the bottom end plate of the filter element (7).

3. The air circulation filtering device with filter screen convenient to disassemble and assemble according to claim 2, characterized in that, The docking limiting mechanism includes positioning pins (14) integrally formed at the four corners of the top of the support frame (6). The positioning pins (14) protrude upwards, and a rotating plate (15) is rotatably installed on the top of the positioning pins (14). A limiting plate (16) is also installed on the top of the positioning pins (14) to limit the rotation plate (15).

4. The air circulation filtering device with filter screen convenient to disassemble and assemble according to claim 3, characterized in that, The docking limiting mechanism also includes a protruding ear (8) integrally formed on the outer periphery of the top plate of the filter element (7). A docking hole (9) is provided at the center of the arc-shaped part of the protruding ear (8). A strip hole (10) is provided on the protruding ear (8) along the extension direction of the protruding ear (8). The strip hole (10) is connected to the docking hole (9).

5. The air circulation filtering device with filter screen convenient to disassemble and assemble according to claim 4, characterized in that, The inner diameter of the docking hole (9) is equal to the outer diameter of the positioning pin (14), and the width of the rotating plate (15) is equal to the width of the strip hole (10).

Images