Filter element for air filter

Abstract

The utility model discloses a filter element for an air filter, which relates to the technical field of filter elements and comprises a filter element box, a positioning plate is movably assembled on the front surface of the filter element box, and a plurality of groups of filter element components connected with the positioning plate are longitudinally arranged in the filter element box at equal intervals; the filter element assembly comprises an outer frame fixed to the side wall of the positioning plate, and an inner frame is movably arranged in the top of the outer frame in a sleeved mode. Through the wavy filter screen, dust can be attached to the lowest point of the filter screen and cannot completely cover the filter screen, so that normal ventilation of the filter screen is guaranteed, and the filtered dust is located in a space formed by the frame edge and the filter screen and cannot be scraped off when extending out of the filter element box along with the positioning plate; and under the auxiliary cooperation of the side strips, a plurality of groups of filter screens can be quickly taken out to be cleaned, and meanwhile, the independent filter screen can be taken out to be replaced, so that the convenience of the filter element is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter core technical field, concretely is a filter core for air filter. BACKGROUND

[0002] The filter core of air filter traps dust, oil dirt and other impurities from gas-solid two-phase flow through the action of porous filter material, so that the gas can be purified, and it sends the air purified after containing dust low into the room to ensure the process requirement of clean room and the air cleanliness in general air conditioning room.

[0003] Through searching China patent network (CN215539335 U) discloses a filter core for air filter, its linkage plate can install or detach with filter core box, and when the linkage plate is detached, a plurality of filter layers can be detached, so that they can be replaced and cleaned according to the use requirement, simple and convenient operation can make the air filter core normal use, the filtering effect is better, and the normal use of air filter is ensured.

[0004] But the technical scheme has certain defects in the actual application process, because the number of filter layers is more, and it is fixed on the side wall of linkage plate, so that its cleaning or dismounting has certain difficulty, and the top of multiple filter layers is in horizontal state, and the dust filtered by air will adhere to the upper surface, which will form dust layer on the upper surface of filter layer for a long time, so that the filtering performance is greatly weakened, and even when the linkage plate is manually detached to drive the filter layer, the dust will block the rectangular hole and fall into the filter box, therefore, a filter core for air filter is provided. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a filter core for air filter to solve the technical problems in the above background.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a filter core for air filter, comprising a filter core box, the front surface of the filter core box is movably assembled with a positioning plate, a plurality of filter assembly groups connected with the positioning plate are longitudinally and equidistantly arranged in the filter core box;

[0007] The filter assembly group comprises an outer frame fixed with the side wall of the positioning plate, an inner frame movably sleeved in the top of the outer frame, a frame edge extending to the lower side of the inner frame is fixed to the inner wall of the inner frame, a positioning frame movably sleeved in the top of the inner frame, a filter screen is fixed to the inner wall of the positioning frame, two groups of side strips are inlaid in the inner side wall of the positioning plate on both sides of the filter assembly group, a plurality of T blocks are fixed to one side of the side strip close to the filter assembly group, and a side groove is formed in the outer wall of the inner frame corresponding to the T block.

[0008] As an air filter filter core optimization technical scheme of the utility model, the top of the filter core box is reserved with an air inlet, the front surface of the filter core box is provided with a plurality of groups of rectangular grooves matched with the filter core assembly, and the inner wall of the filter core box is provided with a strip-shaped groove at the corresponding position of the outer frame.

[0009] As an air filter filter core optimization technical scheme of the utility model, the end face outer wall of the outer frame is provided with an L-shaped groove at the corresponding position of the side groove, and the size of the L-shaped groove is matched with the side groove.

[0010] As an air filter filter core optimization technical scheme of the utility model, the filter screen is arranged in a wave shape, and the front and rear surfaces of the filter screen are attached to the frame edge.

[0011] As an air filter filter core optimization technical scheme of the utility model, the inner wall of the filter core box is provided with a storage groove at the contact position of the side strip, and a rubber pad is attached in the storage groove.

[0012] As an air filter filter core optimization technical scheme of the utility model, the pore size of a plurality of groups of filter screens gradually decreases from top to bottom.

[0013] As an air filter filter core optimization technical scheme of the utility model, the outer wall of the positioning plate is provided with a positioning groove near the four corner positions, and a rotating handle connected with the outer wall of the filter core box by a damping shaft is connected in the positioning groove.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] The filter screen in a wave shape can make dust adhere to the lowest position of the filter screen, and the dust will not completely cover the filter screen, so that the normal air permeability of the filter screen is ensured, and the dust filtered is located in the space formed by the frame edge and the filter, so that the dust will not be scraped off when the positioning plate extends outside the filter core box, thereby ensuring the cleanliness inside the filter core box, and under the auxiliary cooperation of the side strip, a plurality of groups of filter screens can be quickly taken out for cleaning, and the individual filter screen can also be taken out for replacement, further improving the convenience of the filter core. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the utility model;

[0017] Figure 2 It is a filter core box and positioning plate structure view of the utility model;

[0018] Figure 3 It is a positioning plate and a plurality of filter core assembly structure view of the utility model;

[0019] Figure 4 It is a filter core assembly expansion structure view of the utility model;

[0020] Figure 5 This is a structural diagram of the side strip and part of the filter element assembly of this utility model;

[0021] Figure 6 This is a cross-sectional view of the side strip filter element assembly of this utility model;

[0022] Figure 7 For the present utility model Figure 6 Enlarged view of point A in the middle.

[0023] In the diagram: 100, filter box; 101, air inlet; 102, rectangular slot;

[0024] 110. Positioning plate; 111. Positioning groove; 112. Handle; 120. Filter element assembly; 121. Outer frame; 122. Frame edge; 123. Inner frame; 124. Positioning frame; 125. Filter screen; 126. Side strip; 127. Side groove; 128. T-block. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The embodiments of this utility model will be described below based on its overall structure.

[0027] An air filter element, such as Figures 1 to 7 As shown, the filter cartridge box 100 is included, and a positioning plate 110 is movably mounted on the front surface of the filter cartridge box 100. Multiple filter cartridge assemblies 120 connected to the positioning plate 110 are arranged longitudinally and equidistantly inside the filter cartridge box 100.

[0028] The filter element assembly 120 includes an outer frame 121 fixed to the side wall of the positioning plate 110, an inner frame 123 movably sleeved on the top of the outer frame 121, a frame edge 122 extending to the bottom of the inner frame 123 fixed on the inner wall of the inner frame 123, a positioning frame 124 movably sleeved on the top of the inner frame 123, a filter screen 125 fixed on the inner wall of the positioning frame 124, two sets of side strips 126 embedded in the inner side wall of the positioning plate 110 on both sides of the filter element assembly 120, multiple sets of T-blocks 128 fixed on the side of the side strips 126 near the filter element assembly 120, and side grooves 127 opened on the outer wall of the inner frame 123 at positions corresponding to the T-blocks 128.

[0029] The filter screen 125 has a wavy appearance, and the front and back surfaces of the filter screen 125 are in contact with the frame edge 122.

[0030] The wavy filter screen 125 prevents dust from forming a dust layer on the top of the filter screen 125, so that the air entering from the air inlet 101 can normally pass through the filter screen 125 to complete the filtering effect, and the dust stays in the space position formed by the filter screen 125 and the frame edge 122, thereby preventing the filter core assembly 120 from being scraped and falling out of the filter core box 100 along with the positioning plate 110, and ensuring that the filtered dust is located on the surface of the filter screen 125 and can be completely taken out when cleaned manually.

[0031] When disassembled, the locking between the positioning plate 110 and the filter core box 100 is released, and the positioning plate 110 is pulled away from the filter core box 100, so that the filter core assembly 120 is taken out. At this time, the user can apply an external force to the side strip 126 away from the positioning plate 110 with both hands, so that the T block 128 enters the side slot 127, and when the side strip 126 cannot continue to move, an upward external force is applied to the side strip 126, thereby simultaneously driving multiple inner frames 123 and filter screens 125 to separate from the outer frame 121. Similarly, an upward external force can be applied to the positioning frame 124 to take out the filter screen 125 from the inner frame 123, thereby realizing separate disassembly, replacement or cleaning of the filter screen 125, and improving the efficiency of cleaning or replacing the filter screen 125.

[0032] Please refer to Figure 1 and Figure 2 , the top of the filter core box 100 is provided with an air inlet 101, the front surface of the filter core box 100 is provided with multiple rectangular slots 102 matched with the filter core assembly 120, and the inner wall of the filter core box 100 is provided with a strip-shaped slot corresponding to the outer frame 121.

[0033] The filter core assembly 120 can conveniently enter and exit the filter core box 100 through the rectangular slot 102, thereby realizing disassembly and cleaning of the filter core assembly 120, and the strip-shaped slot can support the end of the outer frame 121 away from the positioning plate 110, so that the outer frame 121 is stably placed in the filter core box 100.

[0034] Please refer to Figure 4 , the end surface of the outer frame 121 is provided with an L slot corresponding to the side slot 127, and the size of the L slot matches the size of the side slot 127.

[0035] The L slot is provided to facilitate the sliding of the T block 128 into the side slot 127, thereby realizing synchronous disassembly of multiple filter screens 125 and facilitating rapid disassembly and assembly of the filter screens 125 by the user.

[0036] Please refer to Figure 3 , the inner side wall of the filter core box 100 is provided with a storage slot at the contact position with the side strip 126, and a rubber pad is attached in the storage slot.

[0037] The storage groove provides a hidden storage space for the side strip 126, ensuring that the positioning plate 110 can fully contact the filter cartridge box 100 to complete the locking purpose, and the rubber pad increases the friction coefficient between the outer wall of the side strip 126, thereby preventing the side strip 126 from falling out of the storage groove.

[0038] Please refer to Figure 3 The pore size of the plurality of filter screens 125 gradually decreases from top to bottom.

[0039] The quality of the filtered air can be better improved.

[0040] Please refer to Figure 1 The outer wall of the positioning plate 110 is provided with a positioning groove 111 near the four corners, and the positioning groove 111 is connected with the outer wall of the filter cartridge box 100 by a damping shaft.

[0041] When the positioning plate 110 is attached to the filter cartridge box 100, the handle 112 also enters the positioning groove 111 at this time, and only needs to be rotated to ninety degrees, so that the positioning plate 110 is locked on the outer wall of the filter cartridge box 100, thereby facilitating the subsequent manual removal of the filter cartridge assembly 120.

[0042] The side wall of the filter cartridge box 100 is connected with an air outlet pipe near the bottom.

[0043] The air outlet pipe can discharge the filtered air outside the filter cartridge box 100.

[0044] In use, the wavy filter screen 125 prevents the formation of a dust layer on the top of the filter screen 125, allowing the air entering from the air inlet 101 to normally pass through the filter screen 125 to complete the filtering effect, and the dust will be retained in the space formed by the filter screen 125 and the frame 122. In this way, the phenomenon of the filter cartridge assembly 120 being scraped and falling out of the filter cartridge box 100 along with the positioning plate 110 can be prevented, ensuring that the dust filtered is located on the surface of the filter screen 125, and can be completely taken out when manually cleaned;

[0045] When disassembling, the locking between the positioning plate 110 and the filter core box 100 is released, and the positioning plate 110 is pulled away from the filter core box 100, so that the filter core assembly 120 is taken out, at this time, the artificial can exert an external force on the side strip 126 to the side away from the positioning plate 110, the T-shaped block 128 is driven into the side groove 127, and when the side strip 126 cannot continue to move, the upward external force is exerted on the side strip 126, so that a plurality of groups of inner frames 123 and filter screens 125 are separated from the outer frame 121, and the upward external force can also be exerted on the positioning frame 124, so that the filter screen 125 is taken out from the inner frame 123, the separate filter screen 125 is disassembled, replaced or cleaned, and the efficiency of cleaning or replacing the filter screen 125 can be improved.

[0046] Although the embodiments of the utility model have been shown and described, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and the person skilled in the art can make modifications, replacements and changes without creative contribution after reading the specification without departing from the principles and purposes of the utility model, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A filter cartridge for an air filter, comprising a filter cartridge housing (100), characterized in that: The front surface of the filter core box (100) is movably provided with a positioning plate (110), and a plurality of groups of filter core assemblies (120) connected with the positioning plate (110) are longitudinally and equidistantly arranged in the filter core box (100); The filter core assembly (120) comprises an outer frame (121) fixed to the side wall of the positioning plate (110), an inner frame (123) movably sleeved on the top of the outer frame (121), a frame edge (122) fixed to the inner wall of the inner frame (123) and extending below the inner frame (123), a positioning frame (124) movably sleeved on the top of the inner frame (123), a filter screen (125) fixed to the inner wall of the positioning frame (124), two groups of side strips (126) inlaid in the inner side walls of the positioning plate (110) on both sides of the filter core assembly (120), a plurality of groups of T-shaped blocks (128) fixed to one side of the side strip (126) close to the filter core assembly (120), and a side groove (127) formed in the outer wall of the inner frame (123) at a position corresponding to the T-shaped block (128).

2. A filter cartridge for an air filter according to claim 1, characterized in that: The top of the filter core box (100) is reserved with an air inlet (101), the front surface of the filter core box (100) is formed with a plurality of groups of rectangular grooves (102) matched with the filter core assembly (120), and the inner wall of the filter core box (100) is formed with a strip-shaped groove at a position corresponding to the outer frame (121).

3. A filter cartridge for an air filter according to claim 1, wherein: The end face outer wall of the outer frame (121) is formed with an L-shaped groove at a position corresponding to the side groove (127), and the size of the L-shaped groove is matched with the size of the side groove (127).

4. A filter cartridge for an air filter according to claim 1, wherein: The filter screen (125) is arranged in a wave shape, and the front and rear surfaces of the filter screen (125) are attached to the frame edge (122).

5. A filter cartridge for an air filter according to claim 1, wherein: The inner side wall of the filter core box (100) is formed with a storage groove at a position in contact with the side strip (126), and a rubber pad is attached in the storage groove.

6. A filter cartridge for an air filter according to claim 1, wherein: The pore sizes of a plurality of groups of the filter screen (125) gradually decrease from top to bottom.

7. A filter cartridge for an air filter according to claim 1, wherein: The outer wall of the positioning plate (110) is formed with a positioning groove (111) close to four corners, and a rotating handle (112) rotationally connected to the outer wall of the filter core box (100) by a damping shaft is connected in the positioning groove (111).

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