Efficient sealing joint of gas filter

By designing a high-efficiency sealing joint for the gas filter, the problems of insufficient sealing, inconvenient filter replacement, and unstable sewage pipe fixation are solved, thereby improving the system's operating efficiency and safety, reducing maintenance costs, and enhancing the equipment's reliability and flexibility.

CN223725763UActive Publication Date: 2025-12-26ZHEJIANG DEXIANG INTELLIGENT INSTRUMENT CO LTD
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Patent Information

Application Number
CN202520450037.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2025-12-26
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

Traditional gas filters suffer from problems such as insufficient sealing, inconvenient filter replacement, unstable drain pipe fixing, and complex installation and maintenance, which affect system operating efficiency, safety, and equipment reliability.

Method used

A high-efficiency sealing joint for gas filters was designed. The sealing performance is ensured by fixing the upper and lower flanges together with the use of mounting screws and nuts. The design of the snap-fit ​​assembly and clamping plate achieves stable fixation of the drain pipe. The process of replacing the filter screen and disassembling the inner cylinder is simplified.

Benefits of technology

It improves the sealing performance of the gas filter and system safety, reduces maintenance costs and time, enhances the reliability and versatility of the equipment, and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of gas filters, particularly relates to a high-efficiency sealing joint of a gas filter, and provides the following scheme aiming at the problems of insufficient sealing performance, inconvenience in replacement of a filter screen, instability in fixation of a blow-off pipe and complexity in overall installation and maintenance of the conventional gas filter in the use process: the high-efficiency sealing joint of the gas filter comprises a filter main body, an upper flange and a lower flange are fixedly arranged on the filter main body, mounting screws and mounting nuts are arranged on the upper flange and the lower flange, an air inlet pipe and an air outlet pipe are respectively and fixedly communicated with two sides of the filter main body, a connector is arranged at one end of each of the air inlet pipe and the air outlet pipe, and a connecting pipe is fixedly communicated with the bottom of the filter main body. The sealing performance of the filter main body is ensured, the operation efficiency and the safety of a system are improved, the upper flange is designed to be openable, so that a user can conveniently replace an internal filter screen, the maintenance cost is reduced, the maintenance time is shortened, the filter can be adapted to blow-off pipes with different sizes, and the universality and the flexibility of equipment are improved.
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Description

Technical Field

[0001] This utility model relates to the field of gas filter technology, and in particular to a high-efficiency sealing joint for gas filters. Background Technology

[0002] In gas treatment systems, filters are critical components for ensuring gas quality and system safety. Traditional gas filters suffer from problems such as insufficient sealing, inconvenient filter replacement, unstable drain pipes, and complex overall installation and maintenance. For example, insufficient sealing can lead to gas leaks, affecting system efficiency and safety; inconvenient filter replacement increases maintenance costs and time; unstable drain pipes can leave impurities, affecting filtration effectiveness; and complex overall installation and maintenance reduce equipment reliability and lifespan. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in current gas filters, such as insufficient sealing, inconvenient filter replacement, unstable drain pipe fixation, and complex overall installation and maintenance. For example, insufficient sealing may lead to gas leakage, affecting system operating efficiency and safety; inconvenient filter replacement increases maintenance costs and time; unstable drain pipe fixation may lead to impurity residue, affecting filtration effect; and complex overall installation and maintenance reduces the reliability and service life of the equipment. The proposed invention provides a high-efficiency sealing joint for gas filters.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-efficiency sealing joint for a gas filter includes a filter body, with an inlet pipe and an outlet pipe fixedly connected to both sides of the filter body, and a connector provided at one end of each of the inlet pipe and the outlet pipe. A connecting pipe is fixedly connected to the bottom of the filter body, and a connecting cylinder is fixedly connected to the bottom of the connecting pipe through a connecting assembly.

[0006] The bottom of the connecting cylinder is integrally formed with an inner cylinder, the bottom of the inner cylinder is open, and a drain pipe is snapped into the inside of the inner cylinder by a snap-fit ​​component.

[0007] The top of the filter body is provided with a mounting assembly for mounting devices.

[0008] In one possible design, the connecting assembly includes a first insertion hole inside the connecting tube, and a second insertion hole inside the connecting cylinder, wherein the same pin is inserted into the second insertion hole and the first insertion hole.

[0009] In a possible design, the clamping assembly comprises two symmetrically arranged accommodation grooves formed in the inner wall of the inner cylinder, a round rod slidingly penetrating through one side of the accommodation grooves, a first clamping plate fixedly connected to one end of the round rod, an arc-shaped head fixedly connected to the other end of the round rod, and a same first spring fixedly connected between one side of the arc-shaped head and one side of the inner cylinder, the first spring being sleeved on the round rod.

[0010] In a possible design, the mounting assembly comprises a lower flange integrally formed at the top of the filter body, the top of the filter body is provided with an upper flange, the inner threads of the upper flange and the lower flange are penetrated by a plurality of mounting screws, and the outer wall of the mounting screw is threadedly sleeved with a mounting nut.

[0011] In a possible design, the outer wall of the connecting pipe is threadedly sleeved with a sleeve plate, the bottom of the sleeve plate is provided with an opening, and the inner wall of the sleeve plate is fixedly connected with two symmetrically arranged arc-shaped pieces.

[0012] In a possible design, the top inner wall of the inner cylinder is slidingly connected with two symmetrically arranged second clamping plates, and a same second spring is fixedly connected between one side of the second clamping plate and one side of the inner cylinder.

[0013] In a possible design, the top of the upper flange is integrally formed with a mounting seat, and the top of the mounting seat is rotatably connected with a mounting ring.

[0014] In use, in the present application, gas enters the inside of the filter body through the gas inlet pipe, is filtered, and is then discharged through the gas outlet pipe, impurities remaining inside enter the inside of the inner cylinder through the connecting pipe, and are finally discharged through the blowdown pipe. When mounting, the filter body can be hoisted to a suitable position through the mounting ring, and the lower flange and the upper flange are fixedly mounted to ensure the sealing property of the device. After the upper flange is opened, the internal filter screen can be replaced.

[0015] In addition, due to the different sizes of the blowdown pipe, the blowdown pipe can be inserted into the inside of the inner cylinder from below, the second clamping plate moves transversely under the elastic force of the second spring, at this time the blowdown pipe is clamped by the two second clamping plates, and at the same time, the sleeve plate above is rotated, the sleeve plate gradually moves downward, at this time the sleeve plate drives the arc-shaped pieces to rotate and move downward, the arc-shaped head is continuously pressed due to the fact that one end of the arc-shaped piece is thin and the other end is thick, the arc-shaped head drives the round rod to move transversely, the round rod drives the two first clamping plates to move close to each other, and then the first clamping plate can clamp the blowdown pipe again to ensure the stability of the blowdown pipe, and then the blowdown pipe of different sizes can be adapted.

[0016] Meanwhile, when the inner cylinder needs to be disassembled, the blowdown pipe needs to be removed first. When there is a blowdown pipe inside the inner cylinder, the sleeve plate cannot move to the lowest point, and the latch is always inside the sleeve plate and cannot be exposed. After the blowdown pipe is removed, the sleeve plate can move to the lowest point, and the latch is exposed. After the latch is removed, the inner cylinder and the connecting pipe can be separated, and the inner cylinder can be removed.

[0017] Beneficial effects: The fixed installation of the upper flange and the lower flange, as well as the cooperation of the installation screws and the installation nuts, ensure the sealing of the filter body, effectively prevent gas leakage, and improve the operation efficiency and safety of the system.

[0018] The upper flange can be opened, so that the user can conveniently replace the internal filter screen, reduce the maintenance cost and time, and improve the reliability and service life of the equipment.

[0019] Through the design of the clamping assembly, the blowdown pipe can be pre-clamped by the two first clamping plates, and through the cooperation of the sleeve plate and the arc-shaped piece, the stable fixation of the blowdown pipe is further realized. This design can adapt to blowdown pipes of different sizes, improving the versatility and flexibility of the equipment.

[0020] When the inner cylinder needs to be disassembled, only the blowdown pipe needs to be removed first, and then the sleeve plate is moved down to expose the latch and remove it, so that the inner cylinder and the connecting pipe can be separated, thereby conveniently removing the inner cylinder for maintenance. This design simplifies the disassembly process and reduces the maintenance difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A three-dimensional structure schematic diagram of the efficient sealing joint of the gas filter is provided for the utility model;

[0022] Figure 2 A three-dimensional structure schematic diagram of the efficient sealing joint of the gas filter is provided for the utility model;

[0023] Figure 3 A three-dimensional structure schematic diagram of the efficient sealing joint of the gas filter is provided for the utility model;

[0024] Figure 4 A three-dimensional structure schematic diagram of the efficient sealing joint of the gas filter is provided for the utility model;

[0025] In the figure: 1, filter body; 2, connecting head; 3, air inlet pipe; 4, connecting pipe; 5, blowdown pipe; 6, cover plate; 7, air outlet pipe; 8, mounting ring; 9, mounting seat; 10, upper flange; 11, lower flange; 12, mounting nut; 13, mounting screw; 14, inner cylinder; 16, first insertion hole; 17, connecting cylinder; 18, arc-shaped piece; 19, arc-shaped head; 20, first spring; 21, first clamping plate; 22, round rod; 23, clearance groove; 24, second insertion hole; 25, bolt; 26, second spring; 27, second clamping plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0027] Embodiment 1

[0028] Referring to Figures 1-4 , the connecting head, comprising: a filter body 1, both sides of the filter body 1 are fixedly connected with an air inlet pipe 3 and an air outlet pipe 7, one end of the air inlet pipe 3 and the air outlet pipe 7 is provided with a connecting head 2, the bottom of the filter body 1 is fixedly connected with a connecting pipe 4, the bottom of the connecting pipe 4 is fixedly connected with a connecting cylinder 17 through a connecting assembly, the connecting assembly comprises a first insertion hole 16 opened in the inside of the connecting pipe 4, the inside of the connecting cylinder 17 is opened with a second insertion hole 24, the same bolt 25 is inserted into the inside of the first insertion hole 16 and the second insertion hole 24, the outer wall of the connecting pipe 4 is threadedly sleeved with a cover plate 6, the bottom of the cover plate 6 is provided with an opening, the inner wall of the cover plate 6 is fixedly connected with two symmetrically arranged arc-shaped pieces 18, the arc-shaped pieces 18 are used in cooperation with arc-shaped heads 19, and when it is needed to dismount the inner cylinder 14, it is needed to first dismount the blowdown pipe 5, when the inner cylinder 14 is provided with the blowdown pipe 5, the cover plate 6 cannot be moved to the lowest point, and then the bolt 25 is always located in the inside of the cover plate 6 and cannot be exposed, after the blowdown pipe 5 is taken out, the cover plate 6 can be moved to the lowest point, and then the bolt 25 is exposed, after the bolt 25 is taken out, the inner cylinder 14 and the connecting pipe 4 can be separated, and then the inner cylinder 14 can be taken out;

[0029] The bottom of the connecting cylinder 17 is integrally formed with an inner cylinder 14, the bottom of the inner cylinder 14 is provided with an opening, the inside of the inner cylinder 14 is clamped with a blowdown pipe 5 through a clamping assembly, the clamping assembly includes two symmetrically arranged displacement grooves 23 provided on the inner wall of the inner cylinder 14, a circular rod 22 is slidably penetrated into one side of the inner wall of the displacement groove 23, one end of the circular rod 22 is fixedly connected with a first clamping plate 21, the other end of the circular rod 22 is fixedly connected with an arc-shaped head 19, the same first spring 20 is fixedly connected between one side of the arc-shaped head 19 and one side of the inner cylinder 14, the first spring 20 is sleeved on the circular rod 22, the top inner wall of the inner cylinder 14 is slidably connected with two symmetrically arranged second clamping plates 27, the same second spring 26 is fixedly connected between one side of the second clamping plate 27 and one side of the inner wall of the inner cylinder 14, and because the sizes of the blowdown pipes 5 are different, the blowdown pipe 5 can be inserted into the inside of the inner cylinder 14 from below, the second clamping plate 27 moves laterally under the elastic force of the second spring 26, at this time the blowdown pipe 5 is clamped by the two second clamping plates 27, at the same time the sleeve plate 6 above is rotated and gradually moves downward, at this time the sleeve plate 6 drives the arc-shaped piece 18 to rotate and move downward, because one end of the arc-shaped piece 18 is thin and the other end is thick, at this time the arc-shaped head 19 is continuously pressed, and then the arc-shaped head 19 drives the circular rod 22 to move laterally, the circular rod 22 drives the two first clamping plates 21 to move close to each other, and then the first clamping plate 21 can clamp the blowdown pipe 5 again, so as to ensure the stability of the blowdown pipe 5, and then different sizes of blowdown pipes 5 can be adapted;

[0030] The top of the filter body 1 is provided with a mounting assembly for mounting the device, the mounting assembly includes a lower flange 11 integrally formed on the top of the filter body 1, the top of the filter body 1 is provided with an upper flange 10, the inside of the upper flange 10 and the lower flange 11 is threaded with a plurality of mounting screws 13, the outer wall of the mounting screw 13 is threaded with a mounting nut 12, the gas enters the inside of the filter body 1 through the gas inlet pipe 3, after being filtered, it is discharged through the gas outlet pipe 7, the impurities remaining inside enter the inside of the inner cylinder 14 through the connecting pipe 4, and finally are discharged through the blowdown pipe 5, during installation, the filter body 1 can be hoisted to a suitable position through the mounting ring 8, and the lower flange 11 and the upper flange 10 are fixedly mounted to ensure the sealing of the device, after the upper flange 10 is opened, the internal filter screen can be replaced.

[0031] The present application can be used in the field of gas filters, and can also be used in other fields applicable to the present application.

[0032] Example 2

[0033] Reference Figures 1-4 On the basis of improving example 1: the gas filter high-efficiency sealing joint is applied to the field of gas filters, the top of the upper flange 10 is integrally formed with a mounting seat 9, and the mounting ring 8 is rotatably connected to the top of the mounting seat 9.

[0034] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high efficiency seal joint for a gas filter, characterized in that, Include: Filter body (1), both sides of the filter body (1) are fixedly connected with air inlet pipe (3) and air outlet pipe (7) respectively, one end of the air inlet pipe (3) and the air outlet pipe (7) is provided with a connector (2), the bottom of the filter body (1) is fixedly connected with a connecting pipe (4), the bottom of the connecting pipe (4) is fixedly connected with a connecting cylinder (17) through a connecting assembly; The bottom of the connecting cylinder (17) is integrally formed with an inner cylinder (14), the bottom of the inner cylinder (14) is provided with an opening, and the inner cylinder (14) is internally connected with a blowdown pipe (5) through a clamping assembly; The top of the filter body (1) is provided with a mounting assembly for mounting device.

2. The gas filter high efficiency seal joint of claim 1, wherein, The connecting assembly comprises a first jack (16) formed in the connecting pipe (4), a second jack (24) is formed in the connecting cylinder (17), and the second jack (24) and the first jack (16) are internally inserted with the same plug (25).

3. The gas filter high efficiency seal joint of claim 1, wherein, The clamping assembly comprises two symmetrically arranged displacement grooves (23) formed in the inner wall of the inner cylinder (14), the displacement groove (23) is slidably connected with a circular rod (22), one end of the circular rod (22) is fixedly connected with a first clamping plate (21), the other end of the circular rod (22) is fixedly connected with an arc head (19), the arc head (19) is fixedly connected with the same first spring (20) between one side and one side of the inner cylinder (14), and the first spring (20) is sleeved on the circular rod (22).

4. The gas filter high efficiency seal joint of claim 1, wherein, The mounting assembly comprises a lower flange (11) integrally formed on the top of the filter body (1), the top of the filter body (1) is provided with an upper flange (10), the inner threads of the upper flange (10) and the lower flange (11) are threaded through a plurality of mounting screws (13), and the outer wall of the mounting screw (13) is threaded with a mounting nut (12).

5. The gas filter high efficiency seal joint of claim 1, wherein, The outer wall of the connecting pipe (4) is threaded with a cover plate (6), the bottom of the cover plate (6) is provided with an opening, the inner wall of the cover plate (6) is fixedly connected with two symmetrically arranged arc-shaped pieces (18), and the arc-shaped pieces (18) are used in cooperation with the arc-shaped head (19).

6. The gas filter high efficiency seal joint of claim 1, wherein, The top inner wall of the inner cylinder (14) is slidably connected with two symmetrically arranged second clamping plates (27), and the same second spring (26) is fixedly connected between one side of the second clamping plate (27) and one side of the inner wall of the inner cylinder (14).

7. The gas filter high efficiency seal joint of claim 4, wherein, The top of the upper flange (10) is integrally formed with a mounting seat (9), and the mounting ring (8) is rotatably connected to the top of the mounting seat (9).