Filter with good sealing effect

Abstract

The utility model relates to the technical field of filters, in particular to a filter with a good sealing effect, which comprises a machine body, a pipeline fixedly connected with the outer wall of the machine body, a connecting pipe mounted on the outer wall of the pipeline, a sealing ring slidably connected with the top end of the pipeline and slidably connected with the bottom end of the connecting pipe, and a rubber ring slidably connected with the inner wall of the pipeline. The bottom end of the connecting pipe is fixedly connected with a conical surface pressing ring which is in sliding connection with the outer wall of the pipeline, the outer wall of the connecting pipe is fixedly connected with two upper lug blocks which are distributed in a mirroring mode, the sealing ring, the rubber ring and the conical surface pressing ring are arranged to effectively cope with pressure changes in different directions and sizes, and the pressure compensation capacity and stability of a sealing system are enhanced; the sealing ring is made of a special fluororubber material, the elastic deformation capacity can be kept within the extreme temperature difference range, the sealing failure risk caused by the heat expansion and cold contraction effect is effectively avoided, the multi-layer composite structure of the sealing ring achieves multi-path dissipation of abrasion energy through the pressure gradient dispersion design, and the service life of a sealing piece is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter with good sealing effect. Background Technology

[0002] A filter is a high-precision filtration device made of plastic materials such as polypropylene (PP) and polyphenylene sulfide (PPSU). It is widely used in chemical, pharmaceutical, food, electronics, and water treatment industries. Its core function is to intercept impurities such as tiny particles, colloids, and microorganisms in liquids or gases through the filter element, ensuring the high purity of the medium.

[0003] Confirm that the filter housing is free of cracks and deformation, and that the filter element mounting holes and sealing ring grooves are intact. Check the filter element model and media compatibility to ensure the filter element is undamaged. Avoid installation in dusty or corrosive gas environments. Open the filter top cover and vertically insert the filter element into the filter element seat, ensuring that the filter element sealing ring fits tightly with the filter element seat. For multi-element filters, each filter element must be installed one by one, and the position of the filter element must be fixed with a pressure plate. Before installing the top cover, check that the O-ring seal is clean and not twisted. Tighten the top cover bolts evenly. Connect the filter inlet and outlet to the system pipeline. Install the pressure gauge, air vent valve, and drain valve. Close the outlet valve, open the air vent valve, slowly open the inlet valve, and close it after water comes out of the air vent valve. Open the outlet valve and adjust the flow rate to the rated value.

[0004] However, traditional plastic filters mostly use rigid plastics or ordinary rubber as sealing materials. They have low elastic modulus and are difficult to effectively fill the micro gaps on the contact surface when under pressure, resulting in poor sealing. When pressure fluctuates or temperature changes, gaps easily appear at the sealing interface, causing leakage. Ordinary rubber or low-end plastics are prone to swelling, hardening or cracking after contact with oils, acids and alkalis. After long-term use, the sealing performance drops sharply. Utility Model Content

[0005] This solves the problem of poor applicability of sealing materials, avoids the decrease in sealing performance caused by hardening and cracking, and improves the performance of the device.

[0006] In view of the above-mentioned sealing problems, this utility model is proposed.

[0007] To solve the above technical problems, this utility model provides the following technical solution: a filter with good sealing effect, including a body, a pipe fixedly connected to the outer wall of the body, a connecting pipe installed on the outer wall of the pipe, a sealing ring slidably connected to the bottom end of the connecting pipe and slidably connected to the top end of the pipe, a rubber ring slidably connected to the inner wall of the pipe, a conical pressure ring slidably connected to the bottom end of the connecting pipe and slidably connected to the outer wall of the pipe, and two upper ear blocks fixedly connected to the outer wall of the connecting pipe in a mirror distribution, with a lower ear block fixedly connected to the outer wall of the upper ear block.

[0008] As a preferred embodiment of the filter with good sealing effect of this utility model, the top end of the pipe is provided with an annular groove that facilitates the sliding connection of the rubber ring, the top end of the pipe is provided with an inclined groove that facilitates the sliding connection of the conical pressure ring, the top end of the inclined groove is provided with a chamfer, and the top end of the pipe is fixedly connected with a trapezoidal block that slides with the conical pressure ring.

[0009] As a preferred embodiment of the filter with good sealing effect of this utility model, the bottom end of the upper ear block is fixedly connected to two positioning columns that are distributed in a mirror image, the bottom end of the upper ear block is fixedly connected to an installation block that is slidably connected to the inner wall of the lower ear block, the top end of the lower ear block is provided with two positioning grooves that facilitate the sliding of the positioning columns, and the top end of the lower ear block is provided with a limiting groove that facilitates the sliding of the installation block.

[0010] As a preferred embodiment of the filter with good sealing effect of this utility model, the inner wall of the mounting block is fixedly connected with a plurality of linearly distributed cylinders, the inner wall of the cylinders is slidably connected with a fixing column, and the outer wall of the fixing column is fixedly connected with a limiting block that is slidably connected to the inner wall of the mounting block.

[0011] As a preferred embodiment of the filter with good sealing effect of this utility model, a plurality of springs are connected between the outer wall of the limiting block and the inner wall of the mounting block and are slidably connected to the outer wall of the cylinder, and a moving block is slidably connected to the inner wall of the lower ear block and is slidably connected to the outer wall of the limiting block.

[0012] As a preferred embodiment of the filter with good sealing effect of this utility model, the inner wall of the movable block is slidably connected to a cylinder, the outer wall of the cylinder is fixedly connected to a limiting disk, the inner wall of the movable block is fixedly connected to a rubber block that is slidably connected to the outer wall of the limiting disk, and the inner wall of the lower ear block is provided with a slot to facilitate the sliding connection of the limiting disk.

[0013] The beneficial effects of this utility model are:

[0014] 1. The sealing ring, rubber ring, and conical pressure ring effectively cope with pressure changes of different directions and magnitudes, enhancing the pressure compensation capability and stability of the sealing system. The sealing ring is made of special fluororubber, which has excellent temperature and corrosion resistance and can maintain elastic deformation capability within extreme temperature ranges, effectively avoiding the risk of seal failure caused by thermal expansion and contraction, and strengthening environmental adaptability. Its multi-layer composite structure, through pressure gradient dispersion design, evenly distributes stress to each functional layer, realizing multi-path dissipation of wear energy, extending the service life of the seals, and providing key guarantees for the long-term reliable operation of the equipment.

[0015] 2. Through optimized mechanical linkage design, operators only need to push the moving block to release the locking state of the limit block and the limit groove. Then, rotating the cylinder can drive the limit plate to accurately embed into the slot, realizing the rapid separation and reset of the connecting pipe. This structure innovatively adopts a modular separation mechanism, completely abandoning the traditional tool-dependent disassembly and assembly mode, improving the efficiency of connecting pipe replacement or seal maintenance, and significantly reducing operational complexity and time costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the rubber ring installation structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the conical pressure ring mounting structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the mounting block installation structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the installation structure of the limiting block of this utility model.

[0022] Figure 6 This is a schematic diagram of the installation structure of the limiting plate of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Body; 2. Pipe; 3. Connecting pipe; 4. Sealing ring; 5. Rubber ring; 6. Conical pressure ring; 7. Trapezoidal block; 8. Upper ear block; 9. Lower ear block; 10. Limiting block; 11. Moving block; 12. Cylinder; 13. Positioning post; 14. Mounting block; 15. Cylindrical cylinder; 16. Fixing post; 17. Spring; 18. Limiting disc; 19. Rubber block. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0025] Reference Figure 1-3This is the first embodiment of the present invention, which provides a filter with good sealing effect, including a body 1. A pipe 2 is fixedly connected to the outer wall of the body 1. A connecting pipe 3 is installed on the outer wall of the pipe 2. A sealing ring 4 is slidably connected to the bottom end of the connecting pipe 3 and slidably connected to the top end of the pipe 2. The sealing ring 4 is made of fluororubber, which is resistant to high temperatures of -20℃ to 200℃ and is resistant to corrosion such as acids, alkalis and oils. A rubber ring 5 is slidably connected to the inner wall of the pipe 2. The rubber ring 5 is made of silicone and pre-compressed by 25%. A conical pressure ring 6 is fixedly connected to the bottom end of the connecting pipe 3 and slidably connected to the outer wall of the pipe 2. The conical pressure ring 6 is made of stainless steel to further enhance the sealing effect of the pipe 2. Two upper ear blocks 8 are fixedly connected to the outer wall of the connecting pipe 3 in a mirror distribution. A lower ear block 9 is fixedly connected to the outer wall of the upper ear block 8 and fixedly connected to the outer wall of the pipe 2.

[0026] The top end of pipe 2 is provided with an annular groove to facilitate the sliding connection of rubber ring 5. The top end of pipe 2 is provided with an inclined groove to facilitate the sliding connection of conical pressure ring 6. The top end of the inclined groove is provided with a chamfer to facilitate the insertion and installation of conical pressure ring 6. The top end of pipe 2 is fixedly connected with a trapezoidal block 7 that slides with conical pressure ring 6. The trapezoidal block 7 is used to fit with conical pressure ring 6. Conical pressure ring 6 converts axial pressure into radial sealing force through the inclined groove structure, which, together with the elastic deformation of sealing ring 4, enhances the sealing effect.

[0027] The bottom end of the upper ear block 8 is fixedly connected to two mirror-distributed positioning posts 13. The positioning posts 13 are used to achieve quick docking. The bottom end of the upper ear block 8 is fixedly connected to an installation block 14 that is slidably connected to the inner wall of the lower ear block 9. The inner wall of the installation block 14 is provided with a through hole to facilitate the sliding of the limiting block 10. The top end of the lower ear block 9 is provided with two positioning grooves to facilitate the sliding of the positioning posts 13. The top end of the lower ear block 9 is provided with a limiting groove to facilitate the sliding of the installation block 14.

[0028] During use, first place the sealing ring 4 at the top of the pipe 2, then embed the rubber ring 5 into the inner wall of the circular groove. Subsequently, insert the positioning pin 13 of the upper ear block 8 into the positioning groove, drive the connecting pipe 3 to move, and make the conical pressure ring 6 fit with the trapezoidal block 7 and insert it into the inclined groove. Example 2

[0029] Reference Figure 1-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the inner wall of the mounting block 14 is fixedly connected with a plurality of linearly distributed cylinders 15, the bottom end of the mounting block 14 is chamfered to facilitate the insertion of the mounting block 14 into the limiting groove, the inner wall of the cylinder 15 is slidably connected with a fixing post 16, and the outer wall of the fixing post 16 is fixedly connected with a limiting block 10 that is slidably connected to the inner wall of the mounting block 14.

[0030] Multiple springs 17 are connected between the outer wall of the limiting block 10 and the inner wall of the mounting block 14 and are slidably connected to the outer wall of the cylinder 15. The springs 17 are used to push the limiting block 10 to move. The inner wall of the lower ear block 9 is slidably connected to a moving block 11 that is slidably connected to the outer wall of the limiting block 10. The moving block 11 is used to push the limiting block 10.

[0031] A cylinder 12 is slidably connected to the inner wall of the movable block 11. The cylinder 12 is used to drive the limiting disk 18 to rotate. The limiting disk 18 is fixedly connected to the outer wall of the cylinder 12. A protrusion is provided on the outer wall of the limiting disk 18 to lock the position of the movable block 11. A rubber block 19 is fixedly connected to the inner wall of the movable block 11 and slidably connected to the outer wall of the limiting disk 18. The rubber block 19 is used to push the limiting disk 18. A slot is provided on the inner wall of the lower ear block 9 to facilitate the sliding connection of the limiting disk 18.

[0032] During use, the upper ear block 8 drives the mounting block 14 to insert into the limiting groove. Since the bottom end of the mounting block 14 has a chamfer, the limiting block 10 is forced to compress the spring 17. When the mounting block 14 is fully inserted, the spring 17 releases its elastic force to push the limiting block 10 along the inner wall of the mounting block 14 to engage with the limiting groove. At the same time, the limiting block 10 pushes the moving block 11 to move. When it is necessary to maintain the seal, the moving block 11 is pushed to compress the limiting block 10. The limiting block 10 drives the fixed column 16 to move along the cylinder 15. At the same time, the limiting block 10 compresses the spring 17, pushes the cylinder 12 to drive the limiting plate 18 to compress the rubber block 19. After rotating the cylinder 12 to drive the limiting plate 18 to embed into the inner wall of the slot, the user releases the grip and pulls the upper ear block 8 to drive the mounting block 14 to disengage from the lower ear block 9. The sealing ring 4 and the rubber ring 5 are then removed for maintenance. The operation is now complete.

[0033] The remaining structure is the same as that in Example 1.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A filter with a good sealing effect, characterized by: The device includes a body (1), a pipe (2) is fixedly connected to the outer wall of the body (1), a connecting pipe (3) is installed on the outer wall of the pipe (2), a sealing ring (4) is slidably connected to the bottom end of the connecting pipe (3) and slidably connected to the top end of the pipe (2), a rubber ring (5) is slidably connected to the inner wall of the pipe (2), a conical pressure ring (6) is fixedly connected to the bottom end of the connecting pipe (3) and slidably connected to the outer wall of the pipe (2), and two upper ear blocks (8) are fixedly connected to the outer wall of the connecting pipe (3) in a mirror distribution, and a lower ear block (9) is fixedly connected to the outer wall of the upper ear block (8).

2. The filter with good sealing effect according to claim 1, characterized in that: The top end of the pipe (2) is provided with an annular groove that facilitates the sliding connection of the rubber ring (5), the top end of the pipe (2) is provided with an inclined groove that facilitates the sliding connection of the conical pressure ring (6), the top end of the inclined groove is provided with a chamfer, and the top end of the pipe (2) is fixedly connected with a trapezoidal block (7) that is slidably connected to the conical pressure ring (6).

3. The filter with good sealing effect according to claim 1, characterized in that: The bottom end of the upper ear block (8) is fixedly connected to two positioning posts (13) that are distributed in a mirror image. The bottom end of the upper ear block (8) is fixedly connected to an installation block (14) that is slidably connected to the inner wall of the lower ear block (9). The top end of the lower ear block (9) has two positioning grooves that facilitate the sliding of the positioning posts (13). The top end of the lower ear block (9) has a limiting groove that facilitates the sliding of the installation block (14).

4. The filter with good sealing effect according to claim 3, characterized in that: The inner wall of the mounting block (14) is fixedly connected to a plurality of linearly distributed cylinders (15), the inner wall of the cylinders (15) is slidably connected to a fixing column (16), and the outer wall of the fixing column (16) is fixedly connected to a limiting block (10) that is slidably connected to the inner wall of the mounting block (14).

5. The filter with a good sealing effect according to claim 4, characterized in that: The outer wall of the limiting block (10) is connected to the inner wall of the mounting block (14) by a plurality of springs (17) that are slidably connected to the outer wall of the cylinder (15), and the inner wall of the lower ear block (9) is slidably connected to a moving block (11) that is slidably connected to the outer wall of the limiting block (10).

6. The filter with good sealing effect according to claim 5, characterized in that: The inner wall of the movable block (11) is slidably connected to a cylinder (12), the outer wall of the cylinder (12) is fixedly connected to a limiting disk (18), the inner wall of the movable block (11) is fixedly connected to a rubber block (19) that is slidably connected to the outer wall of the limiting disk (18), and the inner wall of the lower ear block (9) is provided with a slot to facilitate the sliding connection of the limiting disk (18).

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