Sealing structure of air filter

Abstract

The utility model provides a sealing structure of an air filter, which relates to the technical field of air filters, and comprises an upper frame body and a lower frame body, the bottom of the upper frame body is fixedly connected with a sealing block, the outer surface of the sealing block is sleeved with a first rubber pad, the outer surface of the upper frame body is symmetrically and fixedly connected with insertion blocks, and the insertion blocks are fixedly connected with the lower frame body. Limiting grooves are formed in the front surfaces of the two inserting blocks correspondingly, and a sealing groove is formed in the top of the lower frame body. According to the utility model, the connecting blocks, the inserting blocks, the limiting grooves, the limiting blocks, the sliding grooves, the springs, the sliding rods and the connecting rings are matched for use, and the upper frame body and the lower frame body are connected in a clamping manner, so that the problem that the sealing performance is not high when threads are damaged is avoided; and the upper frame body and the lower frame body are sealed for multiple times during connection, so that the sealing performance after connection is ensured, and the practicability is relatively high.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to a sealing structure of an air filter. Background Art

[0002] An air filter is a device that captures dust from gas-solid two-phase flow and purifies the gas through the action of porous filter materials. It purifies the air with low dust content and sends it into the room to ensure the process requirements of the clean room and the air cleanliness in the general air-conditioned room.

[0003] In the prior art, for example, Chinese patent publication number CN211411405U discloses a sealing device for an air filter, comprising an upper frame and a lower frame, an air intake pipe is located at one side of the upper frame and fixedly connected to the upper frame, a filter element is located below the air intake pipe, and also comprises a first sealing structure and a second sealing structure, wherein the bottom of the air intake pipe is provided with an internal thread, the top of the filter element is provided with an external thread, and the bottom of the air intake pipe is threadedly connected to the filter element; the second sealing structure comprises a support rod and a filter plate, the filter plate is fixed to the inner side of the bottom of the air intake pipe, the inner side of the filter plate is provided with an internal thread, the support rod is fixed to the top of the filter element, the outer side of the support rod is provided with an external thread, and the support rod is threadedly connected to the filter plate. The utility model solves the problem of a single sealing structure and poor sealing effect by providing the first sealing structure and the second sealing structure.

[0004] In the above patent, the problems of single sealing structure and poor sealing effect are solved by setting a first sealing structure and a second sealing structure. However, when the internal filter element needs to be replaced, since the upper frame and the lower frame are connected by threads, when installing or disassembling the threaded connection, once the torque applied exceeds the bearing capacity of the threaded material, it will cause damage to the thread, causing the connection to fail or loosen, and the expected sealing effect cannot be achieved. Utility Model Content

[0005] The purpose of the utility model is to solve the problem of a single sealing structure and poor sealing effect in the above-mentioned patent by setting a first sealing structure and a second sealing structure. However, when the internal filter element needs to be replaced, since the upper frame and the lower frame are connected by threads, when installing or disassembling the threaded connection, once the torque applied exceeds the bearing capacity of the threaded material, it will cause damage to the thread, causing the connection to fail or loosen, and the expected sealing effect cannot be achieved. A sealing structure of an air filter is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sealing structure of an air filter, comprising: an upper frame and a lower frame, the bottom of the upper frame is fixedly connected with a sealing block, the outer surface of the sealing block is sleeved with a first rubber pad, the outer surface of the upper frame is symmetrically fixedly connected with plug blocks, the front surfaces of the two plug blocks are both provided with limiting grooves, the top of the lower frame is provided with a sealing groove, the inner bottom of the sealing groove is provided with a second rubber pad, the outer surface of the lower frame is symmetrically fixedly connected with connecting blocks, the inner walls of one side of the two connecting blocks are provided with sliding grooves, and the inner surfaces of the two sliding grooves are movably connected to the limiting blocks.

[0007] Preferably, a sliding rod is movably penetrated through the inner wall of one side of the two sliding grooves, and the rear end surfaces of the two sliding rods are fixedly connected to the front surfaces of the two limit blocks respectively.

[0008] Preferably, the front surfaces of the two sliding rods are fixedly connected with rectangular blocks, and the outer surfaces of the two sliding rods are sleeved with springs.

[0009] Preferably, the two springs are respectively located inside the two sliding grooves, and the outer surfaces of the two limit blocks are respectively engaged with the inner surfaces of the two limit grooves.

[0010] Preferably, a connecting ring is fixedly connected between the outer surfaces of the two rectangular blocks, and the outer surface of the connecting ring is provided with holes.

[0011] Preferably, the inner surface of the connecting ring is fitted with the outer surface of the lower frame, and the outer surface of the sealing block is matched with the inner surface of the sealing groove.

[0012] Preferably, the outer surfaces of the two plug-in blocks are matched with the inner surfaces of the two connecting blocks respectively, the bottoms of the two plug-in blocks are rounded, and the inner surface of the lower frame is provided with a filter element.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, the upper frame and the lower frame are connected by a snap-fitting manner through the cooperation of a connecting block, an insert block, a limit groove, a limit block, a sliding groove, a spring, a sliding rod and a connecting ring, thereby avoiding the problem of low sealing caused by damage to the thread. At the same time, the first rubber pad, the second rubber pad, the sealing groove and the sealing block cooperate to perform multiple sealing treatments on the upper frame and the lower frame when connected, thereby ensuring the sealing after connection, and having high practicality.

[0015] 2. In the present invention, the rounded corners of the insert block make it easier to dock the insert block with the connecting block, and a connecting rope can be inserted into the hole to facilitate pulling of the connecting ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a sealing structure of an air filter proposed by the utility model;

[0017] Figure 2 The utility model provides an expanded view of a sealing structure of an air filter;

[0018] Figure 3 A partial structural cross-sectional view of a sealing structure of an air filter proposed by the utility model;

[0019] Figure 4 The utility model provides a cross-sectional view of a lower frame of a sealing structure of an air filter.

[0020] Legend: 1. Upper frame; 2. Lower frame; 3. Connecting block; 4. Insert block; 5. Limiting groove; 6. Limiting block; 7. Sliding groove; 8. Spring; 9. Sliding rod; 10. Rectangular block; 11. Connecting ring; 12. Hole; 13. Sealing groove; 14. Sealing block; 15. First rubber pad; 16. Filter element; 17. Second rubber pad. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4As shown, the utility model provides a sealing structure of an air filter, comprising: an upper frame 1 and a lower frame 2, a sealing block 14 is fixedly connected to the bottom of the upper frame 1, a first rubber pad 15 is sleeved on the outer surface of the sealing block 14, an insert block 4 is symmetrically fixedly connected to the outer surface of the upper frame 1, and a limiting groove 5 is provided on the front surfaces of the two insert blocks 4, a sealing groove 13 is provided on the top of the lower frame 2, and a second rubber pad 17 is provided on the inner bottom of the sealing groove 13, a connecting block 3 is symmetrically fixedly connected to the outer surface of the lower frame 2, a sliding groove 7 is provided on one side inner wall of the two connecting blocks 3, and the inner surfaces of the two sliding grooves 7 are movably connected to the limiting block 6, and the two sliding grooves 7 are movably connected to the limiting block 6. A sliding rod 9 is movably penetrated through the inner wall of one side of the movable groove 7, and the rear end surfaces of the two sliding rods 9 are respectively fixedly connected to the front surfaces of the two limit blocks 6, and the front surfaces of the two sliding rods 9 are respectively fixedly connected to rectangular blocks 10. The outer surfaces of the two sliding rods 9 are sleeved with springs 8, and the two springs 8 are respectively located inside the two sliding grooves 7. The outer surfaces of the two limit blocks 6 are respectively engaged with the inner surfaces of the two limit grooves 5, the outer surface of the sealing block 14 is matched with the inner surface of the sealing groove 13, the outer surfaces of the two plug blocks 4 are respectively matched with the inner surfaces of the two connecting blocks 3, and a connecting ring 11 is fixedly connected between the outer surfaces of the two rectangular blocks 10.

[0024] The effect achieved by the entire embodiment 1 is that when installing the upper frame 1 and the lower frame 2, the upper frame 1 is picked up and the two plug blocks 4 are aligned with the two connecting blocks 3, and then the connecting ring 11 is pulled to move the two rectangular blocks 10 outward, thereby driving the sliding rod 9 to move, so that the limit block 6 moves into the sliding groove 7, and drives the spring 8 to be squeezed, and then the lower frame 1 is pressed downward, so that the plug block 4 will be inserted along the inner wall of the connecting block 3. When the plug block 4 is fully inserted into the connecting block 3, the connecting ring 11 is released, and under the action of the two springs 8, the limit block 6 will be pushed out of the sliding groove 7 and then inserted into the limit groove 5, completing the installation of the plug block 4 and the connecting block 3, so that the lower frame The body 1 and the upper frame 2 are installed. After the lower frame 1 and the upper frame 2, the sealing block 14 will be inserted into the sealing groove 13, and the second rubber pad 17 will be squeezed to deform, and the connection between the sealing block 14 and the sealing groove 13 will be filled to ensure the sealing. At the same time, the lower frame 1 and the upper frame 2 will squeeze the first rubber pad 15 to deform, and the connection between the lower frame 1 and the upper frame 2 will be further sealed to further ensure the sealing of the connection between the upper frame 1 and the lower frame 2. When it is necessary to disassemble the upper frame 1 and the lower frame 2, it is only necessary to pull the connecting ring 11 outward, and the limit block 6 and the limit groove 5 are no longer engaged, and the disassembly can be carried out, which is more convenient and easy to disassemble the filter element 16.

[0025] Embodiment 2, as Figure 1-Figure 4As shown, a hole 12 is formed on the outer surface of the connecting ring 11 , the inner surface of the connecting ring 11 is fitted with the outer surface of the lower frame 2 , the bottoms of the two inserts 4 are rounded, and a filter element 16 is disposed on the inner surface of the lower frame 2 .

[0026] The effect achieved by the entire embodiment 2 is that, through the rounded corner setting of the plug block 4, the plug block 4 is more convenient to connect with the connecting block 3, and at the same time, the connecting rope can be inserted into the hole 12, thereby facilitating the pulling of the connecting ring 11.

[0027] Working principle: when installing the upper frame 1 and the lower frame 2, pick up the upper frame 1 and align the two plug blocks 4 with the two connecting blocks 3, then pull the connecting ring 11 to move the two rectangular blocks 10 outward, thereby driving the sliding rod 9 to move, so that the limit block 6 moves into the sliding groove 7, and drives the spring 8 to squeeze, and then press the lower frame 1 downward, so that the plug block 4 will be inserted along the inner wall of the connecting block 3. When the plug block 4 is fully inserted into the connecting block 3, release the connecting ring 11, and under the action of the two springs 8, the limit block 6 will be pushed out of the sliding groove 7 and then inserted into the limit groove 5, completing the installation of the plug block 4 and the connecting block 3, so that the lower frame 1 and the upper frame 2 are installed. After the frame 1 and the upper frame 2 are assembled, the sealing block 14 will be inserted into the sealing groove 13, and the second rubber pad 17 will be squeezed to deform, and the connection between the sealing block 14 and the sealing groove 13 will be filled to ensure the sealing. At the same time, the lower frame 1 and the upper frame 2 will squeeze the first rubber pad 15 to deform, and the connection between the lower frame 1 and the upper frame 2 will be further sealed to further ensure the sealing of the connection between the upper frame 1 and the lower frame 2. When the upper frame 1 and the lower frame 2 need to be disassembled, the connecting rope is inserted into the hole 12, and then the connecting ring 11 is pulled outward by the connecting rope so that the limit block 6 and the limit groove 5 are no longer engaged, and the disassembly can be carried out. It is more convenient and easy to disassemble the filter element 16.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A sealing structure of an air filter, characterized in that: include: An upper frame (1) and a lower frame (2), wherein a sealing block (14) is fixedly connected to the bottom of the upper frame (1), and a first rubber pad (15) is sleeved on the outer surface of the sealing block (14); an insert block (4) is symmetrically fixedly connected to the outer surface of the upper frame (1), and a limiting groove (5) is provided on the front surface of the two insert blocks (4); a sealing groove (13) is provided on the top of the lower frame (2), and a second rubber pad (17) is provided on the inner bottom of the sealing groove (13); a connecting block (3) is symmetrically fixedly connected to the outer surface of the lower frame (2), and a sliding groove (7) is provided on one side inner wall of the two connecting blocks (3), and the inner surfaces of the two sliding grooves (7) are movably connected to the limiting block (6).

2. The sealing structure of the air filter according to claim 1, characterized in that: A sliding rod (9) is movably penetrated through the inner wall of one side of the two sliding grooves (7), and the rear end surfaces of the two sliding rods (9) are respectively fixedly connected to the front surfaces of the two limit blocks (6).

3. The sealing structure of the air filter according to claim 2, characterized in that: The front surfaces of the two sliding rods (9) are both fixedly connected with rectangular blocks (10), and the outer surfaces of the two sliding rods (9) are both sleeved with springs (8).

4. The sealing structure of the air filter according to claim 3, characterized in that: The two springs (8) are respectively located inside the two sliding grooves (7), and the outer surfaces of the two limit blocks (6) are respectively engaged with the inner surfaces of the two limit grooves (5).

5. The sealing structure of the air filter according to claim 4, characterized in that: A connecting ring (11) is fixedly connected between the outer surfaces of the two rectangular blocks (10), and a hole (12) is provided on the outer surface of the connecting ring (11).

6. The sealing structure of the air filter according to claim 5, characterized in that: The inner surface of the connecting ring (11) is arranged in a close fit with the outer surface of the lower frame (2), and the outer surface of the sealing block (14) is arranged in a matching manner with the inner surface of the sealing groove (13).

7. The sealing structure of the air filter according to claim 6, characterized in that: The outer surfaces of the two plug blocks (4) are matched with the inner surfaces of the two connection blocks (3), the bottoms of the two plug blocks (4) are both rounded, and a filter element (16) is provided on the inner surface of the lower frame (2).

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