Air filtering device with filter element convenient to replace

Abstract

The utility model discloses an air filtering device with a filter element convenient to replace, which belongs to the technical field of filter element replacement and comprises an air filtering device body and a filter element body, the air filtering device body comprises an air inlet, the filter element body comprises a front cover plate, and a through opening of the front cover plate is in sliding fit with the inner wall of the air inlet. The front cover plate can be inserted into the air inlet under the pressure of the adjusting spring, the adjusting block can slide into the clamping groove at the moment, the limiting rod is rotated, the limiting rod rotates in the limiting opening so that the adjusting block can slide in the inner wall of the clamping groove, the front cover plate is tightly attached to the air inlet at the moment, and installation can be completed; the limiting rod continues to be rotated, the adjusting block is separated from the clamping groove, then force is applied to the direction of the limiting rod, the front cover plate can be separated from the air inlet, the filter element body can be taken out, and therefore the effect of facilitating operation of workers can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter element replacement, and in particular relates to an air filtering device which is convenient for replacing the filter element. Background Art

[0002] Air purification refers to providing overall solutions for various indoor environmental problems such as sterilization, dust reduction and haze removal, removal of harmful decoration residues and odors, etc., to improve living and working conditions and enhance physical and mental health. In today's world where air pollution is serious and people are paying more and more attention to their health, the importance of air purification is self-evident, and air filtration devices are a type of device widely used in air purifiers and fresh air machine industries.

[0003] At present, a Chinese patent with announcement number CN207395162U discloses an air filter device, including a wind cavity, an air inlet and an air outlet are arranged on the wind cavity, a filter assembly is arranged inside the wind cavity, a wind baffle is arranged around the outside of the filter assembly, the two ends of the wind baffle are arranged in contact with the inner wall of the wind cavity, and the two ends of the wind baffle are arranged on both sides of the air inlet; the top and bottom of the filter assembly are provided with ventilation holes; and a PTFE filter element is arranged inside the filter assembly. The utility model realizes double-head air suction, greatly increases the ventilation cross-sectional area, reduces wind resistance, and improves the effective utilization rate of the PTFE membrane; the utility model makes full use of the excellent characteristics of PTFE, solves the problems of non-washable filter materials, low dust holding capacity, and harmful to human body, and the filter element has high strength, high toughness, can be repeatedly cleaned and used, has a low rate of decrease in filtration efficiency, low wind resistance, and large air output.

[0004] However, when the above device is in use, the filter assembly is fixedly connected to the inner wall of the air cavity. After the filter assembly has been used for a long time, it is necessary to disassemble and clean the filter assembly, which is inconvenient for the staff to operate. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an air filter device that is convenient for replacing the filter element. The utility model has the advantages of being easy for the staff to operate.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An air filter device for convenient replacement of filter elements, comprising an air filter device body and a filter element body, the air filter device body comprising an air inlet, the filter element body comprising a front cover plate, the through opening of the front cover plate forming a sliding fit with the inner wall of the air inlet, a plurality of evenly distributed fixing strips fixedly connected to one side of the front cover plate, a filter screen being arranged in the fixing strip, a bottom plate being arranged on one side of the fixing strip, and the bottom plate being in contact with an inner wall of one side of the air filter device body.

[0008] Through the above technical scheme: when in use, press the adjusting block, and the adjusting block slides in the inner wall of the adjusting groove to squeeze the adjusting spring, and then slide the front cover and the bottom plate into the air filter device body. After the opening of the front cover is flush with the air inlet, it can be inserted into the air inlet under the pressure of the adjusting spring. At this time, the adjusting block will slide into the slot, and the limit rod will be rotated. The rotation of the limit rod in the limit opening can make the adjusting block slide in the inner wall of the slot. At this time, the front cover is tightly fitted with the air inlet, and the installation can be completed. When disassembling, continue to rotate the limit rod to separate the adjusting block from the slot, and then apply force in the direction of the limit rod to separate the front cover from the air inlet, and the filter element body can be taken out. Therefore, the effect of facilitating operation for the staff can be achieved.

[0009] The utility model is further configured that an adjustment groove is opened on one side of the bottom plate, an adjustment spring is fixedly connected to an inner wall of one side of the adjustment groove, and an adjustment block is fixedly connected to one side of the adjustment spring to form a sliding fit with the inner wall of the adjustment groove.

[0010] Through the above technical solution: the setting of the adjustment block can slide in the inner wall of the adjustment groove to adjust the position of the front cover.

[0011] The utility model is further configured that a groove is provided on an inner wall of one side of the air filter body to form a sliding fit with the inner wall of the adjustment block.

[0012] Through the above technical solution: the arrangement of the card slot can cooperate with the opening of the front cover plate to fix the filter element body.

[0013] The utility model is further configured that a limiting opening extending into the slot is opened on an outer wall of one side of the air filter body, and an inner wall of the limiting opening is connected to a limiting rod via a thread.

[0014] Through the above technical solution: the setting of the limit opening can adjust the position of the adjustment block when the limit rod rotates.

[0015] The utility model is further configured that the limiting rod is in a T-shaped structure.

[0016] Through the above technical solution: the T-shaped structure design can avoid separation between the limit rod and the limit opening.

[0017] The utility model is further configured that a plurality of evenly distributed guide plates are fixedly connected to one side of the bottom plate, and the guide plates are arranged in an inclined manner.

[0018] Through the above technical solution: the inclined setting can facilitate the airflow to be guided to a position away from the adjustment block through the guide plate, so that the filter can be used evenly.

[0019] The utility model is further configured that a connecting groove is opened on one side of the bottom plate, and a connecting ring is connected to the inner wall of the connecting groove through a thread, and the connecting ring is fixedly connected to the fixing bar.

[0020] Through the above technical solution: the connection ring is set, the filter can be disassembled and assembled. After being separated from the connection groove, the filter can be directly pulled out. When installing, the filter can be installed by gluing the convex corners of the inner wall of the fixing strip.

[0021] The beneficial effects of the utility model are:

[0022] 1. The air filter device with convenient filter element replacement can be inserted into the air inlet under the pressure of the adjustment spring. At this time, the adjustment block will slide into the slot, and the limit rod can be rotated. The rotation of the limit rod in the limit port can make the adjustment block slide in the inner wall of the slot. At this time, the front cover plate is tightly fitted with the air inlet, and the installation can be completed. When disassembling, the limit rod is continued to be rotated to separate the adjustment block from the slot, and then force is applied in the direction of the limit rod to separate the front cover plate from the air inlet, so that the filter element body can be taken out. Therefore, the effect of convenient operation for the staff can be achieved.

[0023] 2. The air filter device, which is convenient for replacing the filter element, can facilitate the airflow to be guided to a position away from the adjustment block through the inclined guide plate, so that the filter can be used evenly; the filter can be disassembled and assembled through the connecting ring, and after being separated from the connecting groove, the filter can be directly pulled out. When installing, the filter can be installed by applying glue to the convex corners of the inner wall of the fixing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional structural schematic diagram of an air filter device for convenient filter element replacement proposed by the utility model;

[0025] Figure 2 This is a partial cross-sectional structural schematic diagram of an air filter device for convenient filter element replacement proposed by the utility model;

[0026] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0027] In the figure: 1. Air filter body; 2. Air inlet; 3. Front cover; 4. Fixing strip; 5. Filter; 6. Bottom plate; 7. Adjustment slot; 8. Adjustment spring; 9. Adjustment block; 10. Slot; 11. Limiting port; 12. Limiting rod; 13. Connecting slot; 14. Connecting ring; 15. Guide plate. DETAILED DESCRIPTION

[0028] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent 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, and therefore cannot be understood as a limitation on this patent.

[0031] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0032] Reference Figure 1-3 An air filter device for convenient replacement of filter elements comprises an air filter device body 1 and a filter element body, the air filter device body 1 comprises an air inlet 2, the filter element body comprises a front cover plate 3, the through opening of the front cover plate 3 forms a sliding fit with the inner wall of the air inlet 2, one side of the front cover plate 3 is fixedly connected with a plurality of evenly distributed fixing strips 4, a filter screen 5 is arranged in the fixing strip 4, a bottom plate 6 is arranged on one side of the fixing strip 4, and the bottom plate 6 contacts with the inner wall of one side of the air filter device body 1.

[0033] It should be noted that, in the present embodiment, an adjustment groove 7 is opened on one side of the base plate 6, an adjustment spring 8 is fixedly connected to the inner wall of one side of the adjustment groove 7, and an adjustment block 9 which forms a sliding fit with the inner wall of the adjustment groove 7 is fixedly connected to one side of the adjustment spring 8, and the adjustment block 9 can slide in the inner wall of the adjustment groove 7 to adjust the position of the front cover 3.

[0034] Furthermore, in this embodiment, a slot 10 is provided on one side inner wall of the air filter body 1 to form a sliding fit with the inner wall of the adjustment block 9, and the slot 10 can cooperate with the opening of the front cover 3 to fix the filter element body.

[0035] A limit opening 11 extending into the slot 10 is formed on one side outer wall of the air filter body 1, and a limit rod 12 is threadedly connected to the inner wall of the limit opening 11. When the limit rod 12 rotates, the position of the adjustment block 9 can be adjusted through the limit opening 11.

[0036] The limiting rod 12 has a T-shaped structure, and the limiting rod 12 with the T-shaped structure can prevent the limiting rod 12 and the limiting opening 11 from being separated.

[0037] A plurality of evenly distributed guide plates 15 are fixedly connected to one side of the bottom plate 6, and the guide plates 15 are inclined. The inclined guide plates 15 can facilitate the airflow to be guided to a position away from the adjustment block 9 through the guide plates 15, so that the filter screen 5 can be used evenly.

[0038] A connecting groove 13 is provided on one side of the bottom plate 6, and a connecting ring 14 is connected to the inner wall of the connecting groove 13 through a thread. The connecting ring 14 is fixedly connected to the fixing bar 4. The filter 5 can be disassembled and assembled through the connecting ring 14. After being separated from the connecting groove 13, the filter 5 can be directly pulled out. During installation, the filter 5 can be installed by applying glue to the convex corners of the inner wall of the fixing bar 4.

[0039] Working principle: When in use, press the adjusting block 9, and the adjusting block 9 slides in the inner wall of the adjusting groove 7 to squeeze the adjusting spring 8, and then slide the front cover 3 and the bottom plate 6 into the air filter device body 1. When the through-hole of the front cover 3 is flush with the air inlet 2, it can be inserted into the air inlet 2 under the pressure of the adjusting spring 8. At this time, the adjusting block 9 will slide into the slot 10, and the limiting rod 12 can be rotated. The rotation of the limiting rod 12 in the limiting opening 11 can make the adjusting block 9 slide in the inner wall of the slot 10. At this time, the front cover 3 is tightly fitted with the air inlet 2, and the installation can be completed. When disassembling, continue to rotate the limiting rod 12 to separate the adjusting block 9 from the slot 10, and then apply force in the direction of the limiting rod 12 to separate the front cover 3 from the air inlet 2, and the filter element body can be taken out. Therefore, the effect of facilitating operation for the staff can be achieved.

[0040] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air filter device for conveniently replacing a filter element, comprising an air filter device body (1) and a filter element body, wherein the air filter device body (1) comprises an air inlet (2), characterized in that: The filter element body comprises a front cover plate (3), the opening of the front cover plate (3) forms a sliding fit with the inner wall of the air inlet (2), one side of the front cover plate (3) is fixedly connected to a plurality of evenly distributed fixing strips (4), a filter screen (5) is arranged inside the fixing strip (4), and one side of the fixing strip (4) is provided with a bottom plate (6), and the bottom plate (6) is in contact with the inner wall of one side of the air filter device body (1).

2. The air filter device for convenient filter element replacement according to claim 1, characterized in that: An adjustment groove (7) is provided on one side of the bottom plate (6); an adjustment spring (8) is fixedly connected to an inner wall of one side of the adjustment groove (7); and an adjustment block (9) is fixedly connected to one side of the adjustment spring (8) and forms a sliding fit with the inner wall of the adjustment groove (7).

3. The air filter device for convenient filter element replacement according to claim 2, characterized in that: A slot (10) is provided on one inner wall of the air filter body (1) and is slidably matched with the inner wall of the adjustment block (9).

4. The air filter device for convenient filter element replacement according to claim 3, characterized in that: A limiting opening (11) extending into the slot (10) is formed on one side outer wall of the air filter device body (1).

5. The air filter device for convenient filter element replacement according to claim 4, characterized in that: The inner wall of the limiting opening (11) is connected to a limiting rod (12) via a thread.

6. The air filter device for convenient filter element replacement according to claim 5, characterized in that: The limiting rod (12) is in a T-shaped structure.

7. The air filter device with convenient filter element replacement according to claim 1, characterized in that: A plurality of evenly distributed guide plates (15) are fixedly connected to one side of the bottom plate (6), and the guide plates (15) are arranged in an inclined manner.

8. The air filter device with convenient filter element replacement according to claim 7, characterized in that: A connection groove (13) is provided on one side of the bottom plate (6), and a connection ring (14) is connected to the inner wall of the connection groove (13) via a thread, and the connection ring (14) is fixedly connected to the fixing bar (4).

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