Plate type primary filter

Abstract

The utility model relates to a plate type primary filter, and belongs to the technical field of primary filters, the plate type primary filter comprises a rectangular shell, a locking piece, an inner frame and a filter element arranged in the inner frame, the upper end of the rectangular shell is provided with a first sinking groove used for containing the inner frame, and the locking piece is used for locking the inner frame in the first sinking groove; through holes communicated with the first sinking grooves are formed in the front end and the rear end of the rectangular shell correspondingly, filtering frames are arranged on the through holes, and filtering nets are arranged in the filtering frames. The whole plate-type primary filter does not need to be disassembled, the filter element in the plate-type primary filter can be independently disassembled, the cleaning efficiency is high, and the working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of primary filter technology, and in particular to a plate-type primary filter. Background Technology

[0002] A pre-filter is the primary filter in an air conditioning system, mainly used to filter dust particles larger than 5μm. Pre-filters are available in three styles: panel, pleated, and bag.

[0003] Currently, existing pre-filters generally consist of an outer frame and a filter element installed inside the outer frame. The surface of the filter element will be covered with dust and impurities. However, the filter element and the outer frame are mostly fixedly connected. When cleaning the filter element, it is necessary to disassemble the entire plate-type pre-filter. Only by disassembling the plate-type pre-filter can the internal filter element be cleaned. The cleaning operation is relatively troublesome and the cleaning efficiency is low. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a plate-type primary filter.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a plate-type primary filter, including a rectangular shell, a locking member, an inner frame and a filter element disposed in the inner frame. The upper end of the rectangular shell is provided with a first recess for accommodating the inner frame. The locking member is used to lock the inner frame in the first recess. The front and rear ends of the rectangular shell are respectively provided with through holes communicating with the first recess. A filter frame is placed on the through hole, and a filter screen is disposed in the filter frame.

[0006] As a preferred embodiment, the filter element is made of non-woven fabric and has a wavy pleated structure.

[0007] As a preferred embodiment, the rectangular outer shell is provided with a second sink groove at both the front and rear ends to cooperate with the filter frame, and the filter frame is installed in the second sink groove by fixing bolts.

[0008] As a preferred embodiment, the inner frame is provided with baffles on the left and right sides, which are flush with the upper end of the inner frame, and the upper end of the rectangular outer shell is provided with a third recessed groove that cooperates with the baffles.

[0009] As a preferred embodiment, the locking component includes a locking bolt mounted on the baffle, and the bottom of the third recess has a threaded hole that mates with the locking bolt.

[0010] As a preferred embodiment, an elastic component is provided at the bottom of the first settling tank. The elastic component has a first state of compression and energy storage and a second state of recovery and energy release. When the elastic component is in the first state, the elastic component is compressed by the inner frame to store energy. When the elastic component is in the second state, the elastic component resets and pushes the inner frame to move upward and causes the baffle to disengage from the third settling tank to release energy.

[0011] As a preferred embodiment, the elastic component includes a push plate that can be slidably disposed within the first settling tank, and a plurality of return springs are provided between the push plate and the bottom of the first settling tank.

[0012] The beneficial effects of this application are as follows: 1. This application installs the inner frame with the filter element inside the rectangular outer shell. The rectangular outer shell is provided with filter screens at the front and back. The inner frame is locked in the first settling groove by locking parts. When disassembling, only the inner frame with the filter element needs to be removed from the rectangular outer shell to clean the filter element. Compared with the prior art, this application does not require disassembling the entire plate primary filter. The internal filter element can be disassembled separately, which has high cleaning efficiency and greatly improves work efficiency.

[0013] 2. This application also includes an elastic component. When the elastic component is in the first state, it is compressed by the inner frame to store energy. When the elastic component is in the second state, it resets and pushes the inner frame upward and causes the baffle to disengage from the third sink groove to release energy. At this time, the inner frame protrudes from the upper surface of the rectangular outer shell, making it easy to remove the inner frame. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the rectangular outer shell of this utility model;

[0016] Figure 3 This is a top view of the rectangular outer shell of this utility model;

[0017] Figure 4 This is an axonometric view of the third recess of the rectangular outer shell of this utility model.

[0018] The markings in the diagram are: 1. Rectangular outer shell, 11. First settling tank, 12. Third settling tank, 2. Filter frame, 21. Filter screen, 22. Fixing bolt, 3. Inner frame, 31. Filter element, 4. Baffle, 5. Locking bolt, 6. Push plate, 61. Return spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Please see Figure 1-4 This utility model provides a plate-type primary filter, including a rectangular outer shell 1, a locking member, an inner frame 3, and a filter element 31 disposed within the inner frame 3. The upper end of the rectangular outer shell 1 is provided with a first recess 11 for accommodating the inner frame 3. The locking member is used to lock the inner frame 3 within the first recess 11. The front and rear ends of the rectangular outer shell 1 are respectively provided with through holes communicating with the first recess 11. A filter frame 2 is mounted on the through hole, and a filter screen 21 is disposed within the filter frame 2. The two filter screens 21 are arranged opposite to each other.

[0021] The filter element 31 is made of non-woven fabric and has a rectangular through-hole that forms a stepped mounting hole with the first settling groove 11. The filter element 31 is rectangular and has a wave-like folded structure. The orthogonal projection of the filter screen 21 onto the filter element 31 falls entirely on the filter element 31. The front and rear ends of the rectangular outer shell 1 are respectively provided with second settling grooves that cooperate with the filter frame 2. The filter frame 2 is installed in the second settling grooves by fixing bolts 22, which are evenly distributed at the four corners of the filter frame 2. The arrangement of the second settling grooves, filter frame 2, and filter screen 21 facilitates the installation of the filter screen 21, and the filter screen also provides a primary filtration effect.

[0022] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the inner frame 3 has baffles 4 on its left and right sides, which are flush with its upper end. The baffles 4 are integrally formed with the inner frame 3. The upper end of the rectangular outer shell 1 has a third recess 12 that cooperates with the baffles 4. The third recess 12 is connected to the first recess 11. The locking component includes a locking bolt 5 set on the baffle 4. The baffle 4 has a positioning stepped through hole that cooperates with the locking bolt 5. The positioning stepped through hole includes a countersunk hole and a threaded through hole located at the bottom of the countersunk hole. The threaded through hole is threadedly engaged with the threaded part of the locking bolt 5. The bottom of the third recess 12 has a threaded hole that cooperates with the locking bolt 5.

[0023] The locking bolt 5 has a locked state and an unlocked state. When the locking bolt 5 is in the locked state, the head of the locking bolt 5 abuts against the bottom of the countersunk hole, and the threaded part of the locking bolt 5 extends into the threaded hole at the bottom of the third countersunk groove 12. When the locking bolt 5 is in the unlocked state, the threaded part of the locking bolt 5 is completely disengaged from the threaded hole at the bottom of the third countersunk groove 12. The locking bolt 5 is an internal hex bolt.

[0024] Furthermore, an elastic component is provided at the bottom of the first sink 11. The elastic component has a first state of compression and energy storage and a second state of recovery and energy release. When the elastic component is in the first state, the locking bolt 5 is locked, and the inner frame 3 is locked in the first sink 11 by the locking member. The elastic component is compressed by the inner frame 3 to store energy. When the elastic component is in the second state, the locking bolt 5 is unlocked, and the inner frame 3 can move up and down in the first sink 11. At this time, the elastic component resets and pushes the inner frame 3 upward and causes the baffle 4 to disengage from the third sink 12 to release energy. At this time, the baffle 4 of the inner frame 3 protrudes from the upper surface of the rectangular outer shell 1, making it easy to remove the inner frame 3. The elastic component includes a push plate 6 that can be slidably disposed in the first sink 11. Multiple return springs 61 are provided between the push plate 6 and the bottom of the first sink 11. The upper end of the return spring 61 is fixedly connected to the push plate 6, and the lower end is fixedly connected to the bottom of the first sink 11.

[0025] In this application, the inner frame 3 with filter element 31 is installed inside the rectangular outer shell 1. The rectangular outer shell 1 is provided with filter screens 21 at the front and back. The inner frame 3 is locked in the first sink 11 by a locking member. When disassembling, it is only necessary to remove the inner frame 3 with filter element 31 from the rectangular outer shell 1 to clean the filter element 31. Compared with the prior art, this application does not require disassembling the entire plate primary filter. The internal filter element can be disassembled separately, which has high cleaning efficiency and greatly improves work efficiency.

[0026] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A plate-type pre-filter, characterized in that, The rectangular shell (1), locking member, inner frame (3) and filter element (31) disposed in the inner frame (3) are provided. The upper end of the rectangular shell (1) is provided with a first recess (11) for accommodating the inner frame (3). The locking member is used to lock the inner frame (3) in the first recess (11). The front and rear ends of the rectangular shell (1) are respectively provided with through holes communicating with the first recess (11). A filter frame (2) is provided on the through hole. A filter screen (21) is provided in the filter frame (2).

2. A plate-type pre-filter according to claim 1, characterized in that: The filter element (31) is made of non-woven fabric and has a wave-shaped folded structure.

3. A plate-type pre-filter according to claim 1, characterized in that: The rectangular outer shell (1) has a second sink at both the front and rear ends that cooperate with the filter frame (2). The filter frame (2) is installed in the second sink by fixing bolts.

4. A plate-type pre-filter according to claim 1, characterized in that: The inner frame (3) has baffles (4) on its left and right sides that are flush with its upper end, and the upper end of the rectangular shell (1) has a third sink (12) that cooperates with the baffles (4).

5. A plate-type pre-filter according to claim 4, characterized in that: The locking component includes a locking bolt (5) set on the baffle (4), and the bottom of the third sink (12) is provided with a threaded hole that mates with the locking bolt (5).

6. A plate-type pre-filter according to claim 5, characterized in that: The bottom of the first settling tank (11) is provided with an elastic component. The elastic component has a first state of compression and energy storage and a second state of recovery and energy release. When the elastic component is in the first state, the elastic component is compressed by the inner frame (3) to store energy. When the elastic component is in the second state, the elastic component resets and pushes the inner frame (3) to move upward and causes the baffle (4) to disengage from the third settling tank (12) to release energy.

7. A plate-type pre-filter according to claim 6, characterized in that: The elastic component includes a push plate (6) that can be slidably disposed in the first sink (11), and a plurality of return springs (61) are provided between the push plate (6) and the bottom of the first sink (11).

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