PTFE filter bag with waterproof function

By introducing a waterproof shell and sealing mechanism into the PTFE filter bag, the problem of insufficient waterproof performance of the filter bag in humid environments is solved, achieving higher filtration efficiency and service life, and ensuring the stability and reliability of the filtration effect.

CN223732350UActive Publication Date: 2025-12-30JIANGSU ZHIZHEN TAIRUI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202422706025.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-12-30
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

Existing PTFE filter bags are not waterproof in humid or water-containing environments, resulting in decreased filtration efficiency, filter bag damage, and shortened service life.

Method used

A waterproof mechanism was designed, comprising components such as a waterproof shell, filter bag body, partition, sealing mechanism, one-way tube, and sealing disc. The waterproof performance and filtration efficiency of the filter bag are improved through the sealing mechanism and adjustment mechanism.

Benefits of technology

It effectively prevents moisture penetration, improves the waterproof performance and service life of the filter bag, and ensures filtration efficiency and system safety and reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223732350U_ABST
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Abstract

The utility model discloses a PTFE filter bag with a waterproof function, which comprises a waterproof shell, the waterproof shell is mounted on external equipment, a waterproof mechanism is arranged on the waterproof shell, and the waterproof mechanism comprises a filter bag body, a partition plate, a sealing mechanism, a one-way pipe, a sealing disc, a discharge pipe, a middle rod, a handle and an adjusting mechanism, a plurality of partition plates are installed on the inner wall of the waterproof shell at equal intervals, the filter bag body is attached to the partition plates, and the waterproof mechanism provides an effective waterproof solution for the PTFE filter bag through cooperation of the waterproof shell, the filter bag body, the partition plates and other components, so that the filter bag can be stably installed on external equipment through arrangement of the waterproof shell; the supporting force of the filter bag is increased due to the installation of the partition plate, the stability of the filter bag in the filtering process is ensured, the waterproof performance of the filter bag is improved due to the overall design of the waterproof mechanism, the filter efficiency is ensured, the service life is prolonged, and the PTFE filter bag can be safely and reliably used in various environments.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PTFE filter bag, more specifically, it relates to a PTFE filter bag with waterproof function. BACKGROUND

[0002] In the current environmental protection technology and industrial production, PTFE filter bag as a kind of high-efficiency filter material, is widely used in various filtering equipment, and its main role is to capture and filter the tiny particulate matter in gas. However, the existing PTFE filter bag has a significant problem in the process of use, that is, it cannot effectively prevent water. Due to the material characteristics of PTFE filter bag, it does not have good waterproof performance, which leads to water penetration into the filter bag when used in humid or water-containing environment. The penetration of water not only affects the filtering efficiency of the filter bag, but also may cause the particulate matter in the filter bag to stick due to moisture absorption, thereby reducing the service life and overall use effect of the filter bag. This problem restricts the application of PTFE filter bag in some specific environments to a great extent, and affects its performance.

[0003] Specifically, the poor waterproof performance of PTFE filter bag is mainly because the microporous structure of its material can easily let water pass through. In the filtering process, if the filter bag cannot effectively prevent water penetration, not only will the filtering efficiency decrease, but also the filter bag may be damaged. For example, when dealing with gas containing corrosive chemicals, the penetration of water may accelerate the aging and corrosion of the filter bag, shorten its service life. In addition, the penetration of water may also cause the formation of water film inside the filter bag, affect the smooth passage of airflow, increase energy consumption, and even cause the blockage of the filter bag. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the problems existing in the prior art, the utility model provides a PTFE filter bag with waterproof function to solve the technical problems mentioned in the background art.

[0006] (II) Technical scheme

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A PTFE filter bag with waterproof function, including waterproof shell, waterproof shell is installed on outside equipment, waterproof shell is provided with waterproof mechanism, waterproof mechanism includes filter bag body, baffle, sealing mechanism, one way pipe, sealing disc, discharge pipe, middle rod, handle and adjusting mechanism, the inner wall of waterproof shell is installed with a plurality of baffles equidistantly, filter bag body is attached on a plurality of baffles, sealing mechanism is installed on filter bag body, a plurality of one way pipes are arranged, and a plurality of one way pipes are installed on the outer wall of waterproof shell respectively, sealing disc is attached on one way pipe, one end of middle rod is connected on sealing disc, the other end of middle rod is connected on handle, a plurality of discharge pipes are arranged, and a plurality of discharge pipes are installed on the side wall of one way pipe respectively, adjusting mechanism is installed in one way pipe.

[0008] The utility model further sets up, sealing mechanism includes fixed ring and pressure cover, fixed ring is coaxial and is installed on filter bag body, and pressure cover is pressed on fixed ring, and the design of sealing mechanism guarantees the effect of sealing.

[0009] The utility model further sets up, waterproof shell is equipped with receiving shell, fixed ring is pressed on receiving shell, fixed bolt is slidably arranged on pressure cover, and fixed bolt is threadedly connected on receiving shell, and the design of receiving shell guarantees the continuity of sealing.

[0010] The utility model further sets up, adjusting mechanism includes thread sleeve and sealing ring, thread sleeve is threadedly connected on one way pipe, and sealing ring is installed on one way pipe, and sealing ring is attached on the inner wall of one way pipe, and the design of adjusting mechanism guarantees the continuity of adjustment.

[0011] The utility model further sets up, sealing spring is arranged on thread sleeve, sealing spring is pressed on sealing disc, and the design of sealing spring guarantees the sealing force supply of sealing disc.

[0012] The utility model further sets up, top pipe is sleeved on middle rod, follow-up disc is coaxially arranged on top pipe, pressure spring is arranged on follow-up disc, pressure spring is sleeved and is installed on top pipe, and pressure spring is in contact with thread sleeve, and the design of top pipe guarantees the fixation of sealing disc.

[0013] The utility model further sets up, rotating disc is arranged on the upper end surface of thread sleeve, and rotating disc and thread sleeve are coaxial, and the design of rotating disc guarantees the continuity of rotation.

[0014] The utility model further sets up, middle rod and handle are coaxial.

[0015] (Three) beneficial effect

[0016] Compared with the prior art, this utility model provides a PTFE filter bag with waterproof function, which has the following beneficial effects:

[0017] 1. The waterproof mechanism, through the cooperation of components such as the waterproof shell, filter bag body, and partitions, provides an effective waterproof solution for PTFE filter bags. The waterproof shell allows the filter bags to be stably installed on external equipment, while the partitions increase the support of the filter bags, ensuring their stability during the filtration process. The overall design of the waterproof mechanism not only improves the waterproof performance of the filter bags but also ensures increased filtration efficiency and service life, enabling PTFE filter bags to be used safely and reliably in various environments.

[0018] 2. The sealing mechanism includes components such as a fixing ring, a pressure sleeve, and a sealing spring. It provides a reliable sealing method for the PTFE filter bag. The elasticity of the sealing spring ensures a tight connection between the sealing disc and the one-way tube, preventing the penetration of moisture and particles. The design of the fixing ring and pressure sleeve allows the sealing mechanism to be easily installed on the filter bag body, while ensuring the stability and durability of the sealing performance. This sealing method greatly improves the waterproof effect of the PTFE filter bag and avoids filter bag damage and filtration efficiency reduction caused by moisture penetration.

[0019] 3. The adjustment mechanism consists of components such as a threaded sleeve, a sealing ring, and a rotating disk. It provides a flexible adjustment method for PTFE filter bags. By rotating the disk, the position of the threaded sleeve can be easily adjusted, thereby changing the elasticity of the sealing spring and achieving precise control of the exhaust pressure. The design of the adjustment mechanism allows users to adjust the sealing state of the filter bag according to actual needs, ensuring the smooth operation of the filtration process. It also improves the safety and reliability of the system, making the use of PTFE filter bags more convenient and efficient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a waterproof PTFE filter bag according to the present invention;

[0021] Figure 2 In this utility model Figure 1 A schematic diagram of the exploded structure;

[0022] Figure 3 This is a schematic diagram of the one-way tube in this utility model;

[0023] Figure 4 In this utility model Figure 3 A schematic diagram of the cross-sectional structure;

[0024] Figure 5 This is a schematic diagram of the jacking pipe structure in this utility model.

[0025] In the figure: 1, waterproof shell; 2, filter bag body; 3, partition; 4, one-way pipe; 5, sealing disc; 6, discharge pipe; 7, intermediate rod; 8, handle; 9, fixed ring; 10, pressing sleeve; 11, receiving shell; 12, fixing bolt; 13, threaded sleeve; 14, sealing ring; 15, sealing spring; 16, top pipe; 17, follow-up disc; 18, compression spring; 19, rotating disc. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0028] In the present application, unless otherwise stated, the orientation such as "up, down" is generally with respect to the direction shown in the drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally with respect to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0029] Please refer to Figures 1-5The utility model provides a PTFE filter bag with waterproof function, including waterproof shell 1, waterproof shell 1 is installed on the outside equipment, waterproof shell 1 is provided with waterproof mechanism, waterproof mechanism includes filter bag body 2, baffle 3, sealing mechanism, one-way pipe 4, sealing disc 5, discharge pipe 6, intermediate rod 7, handle 8 and adjusting mechanism, the inner wall of waterproof shell 1 is equidistantly installed with a plurality of baffle 3, filter bag body 2 is attached on a plurality of baffle 3, sealing mechanism is installed on filter bag body 2, one-way pipe 4 is provided with a plurality of, and a plurality of one-way pipe 4 is installed on the outer wall of waterproof shell 1 respectively, sealing disc 5 is attached on one-way pipe 4, one end of intermediate rod 7 is connected in sealing disc 5, the other end of intermediate rod 7 is connected in handle 8, discharge pipe 6 is provided with a plurality of, and a plurality of discharge pipe 6 is installed on the lateral wall of one-way pipe 4 respectively, adjusting mechanism is installed in one-way pipe 4, sealing mechanism includes fixed ring 9 and pressure sleeve 10, fixed ring 9 is coaxial and installed on filter bag body 2, pressure sleeve 10 is pressed on fixed ring 9, waterproof shell 1 is equipped with receiving shell 11, fixed ring 9 is pressed on receiving shell 11, fixed bolt 12 is slidably equipped on pressure sleeve 10, fixed bolt 12 is threadedly connected on receiving shell 11, adjusting mechanism includes threaded sleeve 13 and sealing ring 14, threaded sleeve 13 is threadedly connected on one-way pipe 4, and one-way pipe 4 is installed with sealing ring 14, sealing ring 14 is attached on the inner wall of one-way pipe 4, sealing spring 15 is equipped on threaded sleeve 13, sealing spring 15 is pressed on sealing disc 5, top pipe 16 is sleeved and equipped on intermediate rod 7, top pipe 16 is coaxial and equipped with follow-up disc 17 on, follow-up disc 17 is equipped with pressure spring 18, pressure spring 18 is sleeved and installed with top pipe 16, and pressure spring 18 is in contact on threaded sleeve 13, the upper end surface of threaded sleeve 13 is equipped with rotary disc 19, rotary disc 19 and threaded sleeve 13 are coaxial and arranged, intermediate rod 7 and handle 8 are coaxial and arranged.

[0030] In the embodiment, when needing to use, waterproof shell 1 is installed on the outside equipment, then filtering is carried out through filter bag body 2, and the filtered gas passes one-way pipe 4 on waterproof shell 1, when the pressure is greater than the elasticity of sealing spring 15, the connection between sealing disc 5 and one-way pipe 4 is released, then discharging is carried out through discharge pipe 6, thereby completing the filtering process, because of the one-way connection of sealing disc 5, when the outer wall of waterproof shell 1 has water, the water cannot enter waterproof shell 1 through sealing disc 5, thereby guaranteeing the waterproof effect of the filter bag.

[0031] More specifically, when needing to adjust the pressure of exhaust, rotary disc 19 is rotated, because threaded sleeve 13 is threadedly connected on one-way pipe 4, the position of sealing spring 15 can be changed, thereby changing the elasticity of sealing spring 15, the sealing force between sealing disc 5 and one-way pipe 4 is changed, thereby guaranteeing the change of discharging force, when needing to continuously fix, top rod is rotated, because top rod is threadedly connected in threaded sleeve 13, when top rod is in contact on sealing disc 5, sealing disc 5 is in the sealed state, thereby guaranteeing the continuous sealing property.

[0032] In summary, the whole device in use or operation: when need to use, because the waterproof shell 1 is installed on the external device, and then filtered through the filter bag body 2, the filtered gas through the one-way pipe 4 on the waterproof shell 1, when the pressure is greater than the elastic force of the sealing spring 15 will open the connection between the sealing disc 5 and the one-way pipe 4, and then through the exhaust pipe 6 exhaust, thus completing the filtering process, because the one-way connection of the sealing disc 5, therefore, when the outer wall of the waterproof shell 1 has a sleep, it cannot enter the waterproof shell 1 through the sealing disc 5, thereby ensuring the waterproof effect of the filter bag, when need to adjust the exhaust pressure, by rotating the rotating disc 19, because the threaded sleeve 13 is threadedly connected to the one-way pipe 4, therefore, the position of the sealing spring 15 can be changed, thereby changing the elastic force of the sealing spring 15, so that the sealing force between the sealing disc 5 and the one-way pipe 4 changes, ensuring the change of the exhaust force, when need to continue to fix, only need to rotate the top rod because the top rod is threadedly connected in the threaded sleeve 13, so that the top rod abuts on the sealing disc 5 will make the sealing disc 5 in the sealed state, thereby ensuring the continuous sealing property.

[0033] In all the above schemes, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which is not described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A PTFE filter bag with waterproof function, comprising a waterproof shell (1), characterized in that, The waterproof shell (1) is installed on the external device, the waterproof shell (1) is provided with a waterproof mechanism, the waterproof mechanism comprises a filter bag body (2), a partition (3), a sealing mechanism, a one-way pipe (4), a sealing disc (5), a discharge pipe (6), an intermediate rod (7), a handle (8) and an adjusting mechanism, a plurality of partitions (3) are installed on the inner wall of the waterproof shell (1) at equal intervals, the filter bag body (2) is attached to the plurality of partitions (3), the sealing mechanism is installed on the filter bag body (2), a plurality of one-way pipes (4) are provided, and the plurality of one-way pipes (4) are respectively installed on the outer wall of the waterproof shell (1), the sealing disc (5) is attached to the one-way pipe (4), one end of the intermediate rod (7) is connected to the sealing disc (5), the other end of the intermediate rod (7) is connected to the handle (8), a plurality of discharge pipes (6) are provided, and the plurality of discharge pipes (6) are respectively installed on the side wall of the one-way pipe (4), and the adjusting mechanism is installed in the one-way pipe (4).

2. The PTFE filter bag with waterproof function according to claim 1, characterized in that: The sealing mechanism comprises a fixed ring (9) and a pressing sleeve (10), the fixed ring (9) is coaxially installed on the filter bag body (2), and the pressing sleeve (10) is pressed on the fixed ring (9).

3. The PTFE filter bag with waterproof function according to claim 2, characterized in that: The waterproof shell (1) is provided with a receiving shell (11), the fixed ring (9) is pressed on the receiving shell (11), and a fixed bolt (12) is slidably arranged on the pressing sleeve (10), and the fixed bolt (12) is threadedly connected to the receiving shell (11).

4. The PTFE filter bag with waterproof function according to claim 3, characterized in that: The adjusting mechanism comprises a threaded sleeve (13) and a sealing ring (14), the threaded sleeve (13) is threadedly connected to the one-way pipe (4), the one-way pipe (4) is provided with the sealing ring (14), and the sealing ring (14) is attached to the inner wall of the one-way pipe (4).

5. The PTFE filter bag with waterproof function according to claim 4, characterized in that: The threaded sleeve (13) is provided with a sealing spring (15), and the sealing spring (15) is pressed on the sealing disc (5).

6. The PTFE filter bag with waterproof function according to claim 5, characterized in that: The intermediate rod (7) is provided with a top pipe (16), the top pipe (16) is coaxially provided with a follow-up disc (17), the follow-up disc (17) is provided with a compression spring (18), the compression spring (18) is sleeved with the top pipe (16), and the compression spring (18) abuts against the threaded sleeve (13).

7. The PTFE filter bag with waterproof function according to claim 6, characterized in that: The upper end surface of the threaded sleeve (13) is provided with a rotating disc (19), and the rotating disc (19) and the threaded sleeve (13) are coaxially arranged.

8. The PTFE filter bag with waterproof function according to claim 1, characterized in that: The intermediate rod (7) and the handle (8) are coaxially arranged.