Air filter convenient to clean

Abstract

The utility model discloses an air filter convenient to clean, which comprises a shell, a filter element and a cleaning unit, and is communicated with an air inlet of an external exhaust fan by matching an exhaust pipe connecting lug with an air pipe, so that the filter element can filter inlet air, dust adhered to the front side of the filter element can be brushed off through bristles, and the cleaning unit is arranged on the shell. A moving motor drives a lead screw to rotate to be matched with a lead screw lug so that a sweeping frame can move along a filter element, then the filter element is comprehensively swept, negative pressure can be formed in a dust collection box through a dust collection fan, and therefore dust brushed off from the filter element is finally sucked into the dust collection box through the sweeping frame and a dust suction hose; large-particle substances are blocked through an outer net, dust can be prevented from being accumulated on a lead screw through a lead screw cover, the dust collection box can be conveniently taken out from the interior of a dust collection cavity through a buckling groove, a filter element is cooperatively mounted through a mounting groove, a fixing frame is fixed through a screw, and the filter element can be conveniently taken down.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, and specifically relates to an air filter which is convenient to clean. Background Technique

[0002] An air filter is a device that captures dust from a gas-solid two-phase flow through the action of a porous filter material and purifies the gas. It combines a suction fan and a filter element to purify the air with a low dust content and send it into the room, thereby further preventing external dust from entering the room and polluting the indoor air on the premise of realizing indoor ventilation.

[0003] However, the existing air filters have the following disadvantages. Since the filter screen of the air filter is used for a long time, the dust attached to the filter screen needs to be cleaned in time to prevent the filter screen from being blocked and affecting the subsequent filtering work. However, most of the filter screens of air filters are very inconvenient to clean, resulting in a reduction in the filtering efficiency. Therefore, an air filter that is convenient to clean is needed to solve the above problems. Content of the Utility Model

[0004] In view of the problems existing in the prior art, the present utility model discloses an air filter that is convenient for cleaning. The technical solution adopted is as follows: it includes a housing, a filter element, and a cleaning unit. The housing is a structure with a hollow interior and openings at the front and rear. Connecting ears for the air extraction pipes are respectively arranged on the left and right sides of the housing. The filter element is arranged inside the housing. A dust cleaning box with an opening at the rear is arranged below the housing. The interior of the dust cleaning box is divided into a flexible hose moving cavity and a dust collection cavity by a partition. The flexible hose moving cavity is located above the dust collection cavity. A dust collection fan is arranged at the lower end of the dust collection cavity, and the air inlet of the dust collection fan is communicated with the dust collection cavity. A dust collection box inserted from the rear opening is arranged inside the dust collection cavity, and the bottom of the dust collection box is a filter screen. A lead screw is rotatably arranged in the housing from left to right, and the lead screw is located in front of the filter element. A moving motor is arranged on the right side of the housing, and the output shaft of the moving motor is connected to the lead screw. The cleaning unit includes a cleaning frame, a lead screw ear, bristles, and a dust extraction flexible hose. The cleaning frame is a structure with a hollow interior and an opening at the rear. The lead screw ear is arranged at the rear of the cleaning frame and is threadedly installed on the lead screw. The upper and lower ends of the cleaning frame are slidably arranged in the upper and lower parts of the housing. The bristles are arranged on the rear side of the cleaning frame and are attached to the front side of the filter element. The upper end of the dust extraction flexible hose is communicated with the cleaning frame, and the lower end of the dust extraction flexible hose passes through the flexible hose moving cavity and is communicated with the dust collection cavity. The connecting ears for the air extraction pipes cooperate with an air duct to be connected to the air inlet of an external air extraction fan, so as to realize the filtered air intake of the filter element. The dust adhered to the front side of the filter element can be brushed off by the bristles. The cleaning frame can be moved along the filter element by driving the lead screw to rotate by the moving motor in cooperation with the lead screw ear, so as to comprehensively clean the filter element. The dust collection fan can make the interior of the dust collection box form a negative pressure, so that the dust brushed off from the filter element is finally sucked into the dust collection box through the cleaning frame and the dust extraction flexible hose, and is retained in the dust collection box after being blocked by the filter screen, and then is uniformly processed.

[0005] As a preferred technical solution of the air filter that is convenient for cleaning of the present utility model, an outer net is arranged on the front side of the housing, and the outer net closes the front opening of the housing to block large particulate matter.

[0006] As a preferred technical solution of the air filter that is convenient for cleaning of the present utility model, a lead screw cover is arranged inside the housing, and the lead screw cover covers the front side of the lead screw to prevent dust from accumulating on the lead screw.

[0007] As a preferred technical solution of the air filter that is convenient for cleaning of the present utility model, a buckling groove is arranged on the rear side of the dust collection box to facilitate the removal of the dust collection box from the interior of the dust collection cavity.

[0008] As a preferred technical solution of the air filter that is convenient for cleaning in the present utility model, an installation groove is provided inside the outer shell, and the installation groove is located behind the lead screw. The filter element is installed in cooperation with the installation groove.

[0009] As a preferred technical solution of the air filter that is convenient for cleaning in the present utility model, a fixing frame is provided on the periphery of the filter element. The fixing frame is arranged in the installation groove through screws arranged at the four corners. Fixing the fixing frame through screws can facilitate the removal of the filter element.

[0010] The beneficial effects of the present utility model: The present utility model is connected to the air inlet of an external exhaust fan through the air extraction pipe connecting ear and the air duct, so as to realize the filtered air intake of the filter element. The dust adhered to the front side of the filter element can be brushed off by the brush hairs. The cleaning frame can be moved along the filter element by driving the lead screw to rotate through the moving motor in cooperation with the lead screw ear, so as to comprehensively clean the filter element. The dust collection fan can make the inside of the dust collection box form a negative pressure, so that the dust brushed off from the filter element is finally sucked into the dust collection box through the cleaning frame and the dust extraction hose, and is retained in the dust collection box after being blocked by the filter screen, and then is uniformly processed. The large-particle substances are blocked by the outer net. The lead screw cover can prevent dust from accumulating on the lead screw. The dust collection box can be conveniently taken out from the dust collection cavity through the buckle groove. The filter element is installed in cooperation with the installation groove, and the fixing frame is fixed through screws, which can facilitate the removal of the filter element. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the present utility model;

[0012] Figure 2 It is a rear view of the present utility model;

[0013] Figure 3 It is a schematic structural diagram of the outer shell of the present utility model;

[0014] Figure 4 It is a schematic structural diagram of the filter element of the present utility model;

[0015] Figure 5 It is a schematic structural diagram of the cleaning unit of the present utility model;

[0016] Figure 6 It is a schematic structural diagram of the dust collection box of the present utility model.

[0017] In the figure: 1 - outer shell, 101 - air extraction pipe connecting ear, 102 - outer net, 103 - installation groove, 2 - dust cleaning box, 201 - hose movable cavity, 202 - dust collection cavity, 203 - dust collection fan, 3 - filter element, 301 - fixing frame, 302 - screw, 4 - lead screw, 401 - moving motor, 5 - cleaning unit, 51 - cleaning frame, 52 - lead screw ear, 53 - brush hair, 54 - dust extraction hose, 6 - dust collection box, 601 - filter screen, 602 - buckle groove. Detailed implementation manners

[0018] Example 1

[0019] Such as Figures 1 to 6As shown in the figure, the utility model discloses an air filter which is convenient to clean. The adopted technical solution is as follows: it includes a housing 1, a filter element 3 and a cleaning unit 5. The housing 1 is a hollow structure with openings at the front and rear. On the left and right sides of the housing 1, there are respectively arranged air extraction pipe connecting ears 101. The filter element 3 is arranged inside the housing 1. Inside the housing 1, there is an installation groove 103, and the installation groove 103 is located at the rear side of the lead screw 4. The filter element 3 is installed in cooperation with the installation groove 103. A fixing frame 301 is arranged on the periphery of the filter element 3. The fixing frame 301 is arranged in the installation groove 103 through screws 302 arranged at the four corners. By using the screws 302 to fix the fixing frame 301, it is convenient to remove the filter element 3. Below the housing 1, there is a dust cleaning box 2 with an opening at the rear side. On the front side of the housing 1, there is an outer net 102, and the outer net 102 closes the front opening of the housing 1. The outer net 102 is used to block large particle substances. The inside of the dust cleaning box 2 is divided into a hose movable cavity 201 and a dust collection cavity 202 by a partition. The hose movable cavity 201 is located above the dust collection cavity 202. At the lower end of the dust collection cavity 202, there is a dust collection fan 203, and the air inlet of the dust collection fan 203 is communicated with the dust collection cavity 202. Inside the dust collection cavity 202, there is a dust collection box 6 inserted from its rear opening. The bottom of the dust collection box 6 is a filter screen 601. On the rear side of the dust collection box 6, there is a buckle groove 602. Through the buckle groove 602, it is convenient to take out the dust collection box 6 from the inside of the dust collection cavity 202; Inside the housing 1, a lead screw 4 is rotatably arranged from left to right, and the lead screw 4 is located in front of the filter element 3. On the right side of the housing 1, there is a moving motor 401, and the output shaft of the moving motor 401 is connected to the lead screw 4. Inside the housing 1, there is a lead screw cover, and the lead screw cover covers the front side of the lead screw 4. Through the lead screw cover, it can prevent dust from accumulating on the lead screw 4; The cleaning unit 5 includes a cleaning frame 51, a lead screw ear 52, bristles 53 and a dust extraction hose 54. The cleaning frame 51 is a hollow structure with an opening at the rear side. The lead screw ear 52 is arranged at the rear side of the cleaning frame 51 and is threadedly installed on the lead screw 4. The upper and lower ends of the cleaning frame 51 are slidably arranged in the upper and lower parts of the housing 1. The bristles 53 are arranged on the rear side of the cleaning frame 51 and are attached to the front side of the filter element 3. The upper end of the dust extraction hose 54 is communicated with the cleaning frame 51, and the lower end of the dust extraction hose 54 passes through the hose movable cavity 201 and is communicated with the dust collection cavity 202. Through the air extraction pipe connecting ear 101, it is matched with an air pipe to be connected to the air inlet of an external exhaust fan, so as to realize the filtered air intake of the filter element 3. The dust adhered to the front side of the filter element 3 can be brushed off by the bristles 53. By driving the lead screw 4 to rotate by the moving motor 401 and cooperating with the lead screw ear 52, the cleaning frame 51 can be moved along the filter element 3, so as to comprehensively clean the filter element 3. Through the dust collection fan 203, a negative pressure can be formed inside the dust collection box 6, so that the dust brushed off from the filter element 3 can be finally sucked into the dust collection box 6 through the cleaning frame 51 and the dust extraction hose 54, and is retained in the dust collection box 6 after being blocked by the filter screen 601, and then is uniformly processed.

[0020] Working principle of the present utility model: The air suction pipe connection ear 101 is connected to the air inlet of an external air suction fan. When the external air suction fan is started, external air enters from the front side of the filter element 3, and the dust inside is filtered out by the filter element 3. When it is necessary to clean the dust adhered to the front side of the filter element 3, the dust collection fan 203 is started to create a negative pressure inside the dust collection box 6. The lead screw 4 is started, and the brush bristles 53 brush the dust adhered to the filter element 3 along the filter element 3. The brushed dust reaches the inside of the dust collection box 6 through the cleaning frame 51 and the dust suction hose 54 for collection. The dust collection box 6 can be taken out of the dust collection cavity 202 by grasping the buckle groove 602 and then processed.

[0021] The circuit connection involved in the present utility model is a commonly used means adopted by those skilled in the art and can obtain technical inspiration through a limited number of experiments, belonging to the prior art that is widely used.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] The components not described in detail in this article are prior art.

[0025] Although the specific embodiments of the present utility model have been described in detail above, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present utility model, and modifications or variations that do not involve creative labor are still within the protection scope of the present utility model.

Claims

1. An air filter that is easy to clean, comprising a housing (1), a filter element (3) and a cleaning unit (5), wherein the housing (1) is a hollow structure with front and rear openings, and exhaust pipe connecting ears (101) are respectively arranged on the left and right sides of the housing (1), and the filter element (3) is arranged in the housing (1), characterized in that: A dust cleaning box (2) with a rear opening is arranged below the shell (1); the interior of the dust cleaning box (2) is divided into a hose movable chamber (201) and a dust collecting chamber (202) by a partition; the hose movable chamber (201) is located above the dust collecting chamber (202); a dust collecting fan (203) is arranged at the lower end of the dust collecting chamber (202); and an air inlet of the dust collecting fan (203) is communicated with the dust collecting chamber (202); a dust collecting box (6) is arranged inside the dust collecting chamber (202) and is inserted from its rear opening; the bottom of the dust collecting box (6) is a filter screen (601); a lead screw (4) is arranged inside the shell (1) so as to rotate from left to right, and the lead screw (4) is located on the front side of the filter element (3); a moving motor (401) is arranged on the right side of the shell (1); The output shaft of the movable motor (401) is connected to the lead screw (4); the cleaning unit (5) comprises a cleaning frame (51), a lead screw ear (52), a brush (53) and a dust extraction hose (54); the cleaning frame (51) is an internally hollow structure with an opening at the rear side; the lead screw ear (52) is arranged at the rear side of the cleaning frame (51) and is threadedly mounted on the lead screw (4); the upper and lower ends of the cleaning frame (51) are slidably arranged in the upper and lower parts of the outer shell (1); the brush (53) is arranged on the rear side of the cleaning frame (51) and is attached to the front side of the filter element (3); the upper end of the dust extraction hose (54) is connected to the cleaning frame (51); and the lower end of the dust extraction hose (54) passes through the hose active cavity (201) and is connected to the dust collecting cavity (202).

2. An air filter that is easy to clean according to claim 1, characterized in that: An outer net (102) is arranged on the front side of the outer shell (1), and the outer net (102) closes the front opening of the outer shell (1).

3. The easy-to-clean air filter according to claim 1, characterized in that: A screw cover is arranged inside the housing (1), and the screw cover covers the front side of the screw (4).

4. The easy-to-clean air filter according to claim 1, characterized in that: A buckle groove (602) is provided on the rear side of the dust collecting box (6).

5. The easy-to-clean air filter according to claim 1, characterized in that: A mounting groove (103) is provided inside the housing (1), and the mounting groove (103) is located at the rear side of the lead screw (4).

6. An easy-to-clean air filter according to claim 5, characterized in that: A fixing frame (301) is arranged on one circumference of the filter element (3), and the fixing frame (301) is arranged in the installation groove (103) by means of screws (302) arranged at four corners.

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