Non-glue-filled filter core sealing structure

Abstract

This utility model discloses a non-glue-filled filter cartridge sealing structure, including a bracket, a filter material rolled around the bracket, an outlet at the upper end of the bracket, a sealing upper cover assembly on the outlet, and a sealing lower cover assembly installed at the lower end of the filter material. The inner end of the upper cover is inserted into the upper end of the bracket, and a sealing ring II is installed in the sealing groove on the outer surface of the inner end, so that the upper cover and the bracket are sealed. When the upper cover and the upper fixed cover are threaded together, the notch I, under the action of the inclined surface I, reduces the gap, thereby achieving a seal, and at the same time, the rib I is embedded into the surface of the filter material. The connecting port of the lower cover is inserted into the lower end of the filter material, and a sealing ring III is installed in the sealing groove on the outer surface of the connecting port. When the lower cover and the lower fixed cover are threaded together, the notch II, under the action of the inclined surface II, reduces the gap, thereby achieving a seal, and at the same time, the rib II is embedded into the surface of the filter material, forming a seal, so as to solve the problems of poor sealing reliability, low production efficiency, and poor environmental performance of the existing glue-filled filter cartridge sealing method.

Description

Technical Field

[0001] This utility model relates to the field of filter element sealing technology, specifically to a non-adhesive filter element sealing structure. Background Technology

[0002] In filter cartridge applications, the most common sealing method currently used is glue injection, which involves injecting glue into the edges of the filter cartridge and achieving a seal through the curing of the glue.

[0003] Problems with existing glue application processes:

[0004] First, the issue of sealing reliability: During long-term use, the adhesive may age, crack, or delaminate due to environmental factors such as temperature, humidity, and pressure, resulting in a decline in sealing performance. This allows unfiltered impurities or contaminants to circulate around the filter element, reducing the filtration effect.

[0005] Secondly, there is the issue of production efficiency: the glue-filling process requires specialized glue-filling equipment and operators, and the glue needs a certain amount of time to cure. This increases the number of production steps and the production cycle, reduces production efficiency, and increases production costs.

[0006] Third, environmental and health issues: Some adhesives contain harmful substances such as volatile organic compounds (VOCs), which will evaporate into the air during the production process, posing a threat to the health of operators; at the same time, after the filter element is scrapped, the adhesive is difficult to degrade, which will cause environmental pollution.

[0007] Therefore, this utility model proposes a non-adhesive-filled filter element sealing structure. Utility Model Content

[0008] In view of the problems existing in the prior art, this utility model proposes a non-adhesive-filled filter element sealing structure, which improves the sealing performance of the filter element.

[0009] To achieve the above objectives, the technical solution of this utility model is as follows:

[0010] A non-adhesive-filled filter cartridge sealing structure includes a bracket with a plurality of filter holes on its outer surface, a filter material rolled around the bracket, an outlet at the upper end of the bracket, a sealing upper cover assembly for sealing the filter cartridge on the outlet, and a sealing lower cover assembly installed at the lower end of the filter material.

[0011] Furthermore, the sealing cover assembly includes an upper cover and an upper fixed cover. The upper cover includes an upper cover body, which has a plurality of notches evenly provided along its circumferential direction, and the inner wall surface of the upper cover body near the bottom is provided with a plurality of ribs.

[0012] Furthermore, the inner wall surface of the upper fixed cover near the bottom end is provided with an inclined surface. When the upper cover and the upper fixed cover are engaged, the notch is reduced by the action of the inclined surface, thereby achieving a seal.

[0013] Furthermore, the upper end of the cover body is connected to an outer port, and a sealing groove is formed on the outer surface of the outer port, wherein a sealing ring is installed on the sealing groove. The upper cover body is provided with an inner port, and the inner port is connected to the outer port.

[0014] Furthermore, a sealing groove is provided on the outer surface of the inner port; an external thread is provided on the outer surface of the upper cover body near the outer port, and an internal thread matching the external thread is provided on the inner wall of the upper fixed cover.

[0015] Furthermore, the outer diameter of the inner port is smaller than the upper port of the bracket; the outer diameter of the upper cover is smaller than the inner diameter of the upper fixed cover.

[0016] Furthermore, the sealing lower cover assembly includes a lower cover and a lower fixed cover. The lower cover has a connection port on its bottom upper surface, a sealing groove on the outer surface of the connection port, a plurality of notches evenly distributed on the outer surface of the lower cover, a rib on the inner wall of the lower cover near the upper port, and an external thread on the outer surface of the lower cover.

[0017] Furthermore, the inner wall surface of the lower fixed cover near the upper port is provided with a second inclined surface. When the lower cover and the lower fixed cover are engaged, the gap is reduced under the action of the second inclined surface, thereby achieving a seal.

[0018] Furthermore, the inner wall surface of the lower fixed cover near the lower port is provided with two internal threads, the outer diameter of the lower cover is smaller than the inner diameter of the lower fixed cover, and the outer diameter of the connection port is smaller than the inner diameter of the lower port of the filter material.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1) The inner port of the upper cover of this utility model is inserted into the upper port of the bracket. At this time, a sealing ring 2 is installed in the sealing groove on the outer surface of the inner port, so that the upper cover and the bracket are sealed. When the upper cover and the upper fixed cover are threadedly connected, the notch 1 reduces the gap under the action of the inclined surface 1, thereby achieving a seal. At the same time, the rib 1 is inserted into the surface of the filter material. The connecting port of the lower cover is inserted into the lower port of the carbon fiber filter material. At this time, a sealing ring 3 is installed in the sealing groove on the outer surface of the connecting port. When the lower cover and the lower fixed cover are threadedly connected, the notch 2 reduces the gap under the action of the inclined surface 2, thereby achieving a seal. At the same time, the rib 2 is inserted into the surface of the filter material to form a seal, so as to solve the problems of poor sealing reliability, low production efficiency, poor environmental protection and inconvenient maintenance and replacement of the existing glue filter element sealing method.

[0021] 2) The non-glued filter element sealing structure of this utility model improves the sealing performance and production efficiency of the filter element, reduces production costs, and meets environmental protection and health requirements. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the non-glued filter element sealing structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the upper cover structure of this utility model. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the upper cover structure of this utility model. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the upper fixed cover structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the lower cover structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the lower fixed cover structure of this utility model.

[0028] In the diagram: 1. Sealing ring one; 2. Top cover; 201. Notch one; 202. Rib one; 203. Outer port; 204. Inner port; 205. External thread one; 3. Sealing ring two; 4. Top fixed cover; 401. Inclined surface one; 402. Internal thread one; 5. Bracket; 6. Filter media; 7. Sealing ring three; 8. Bottom cover; 801. Connection port; 802. Notch two; 803. Rib two; 804. External thread two; 9. Bottom fixed cover; 901. Inclined surface two; 902. Internal thread two. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the scope described herein.

[0030] Please refer to Figure 1 A non-glued filter cartridge sealing structure includes a support 5 with a plurality of filter holes on its outer surface. Filter media 6 is rolled on the outer surface of the support 5. The function of the support 5 is to prevent the filter cartridge from collapsing due to water flow impact during filtration. In this embodiment, the filter media 6 is a soft carbon fiber filter media. The upper end of the support 5 is a water outlet, and a sealing upper cover assembly for sealing the filter cartridge is provided on the water outlet. A sealing lower cover assembly is installed at the lower end of the filter media 6.

[0031] During normal filtration, water enters through the surface of filter media 6, passes through filter media 6, and flows out from the outlet.

[0032] The sealing cover assembly includes an upper cover 2 and an upper fixed cover 4. Please refer to [reference needed]. Figure 2-3The upper cover 2 includes an upper cover body, which has a number of notches 201 evenly distributed along its circumferential direction, and a number of ribs 202 distributed on the inner wall surface of the upper cover body near the bottom.

[0033] Please refer to Figure 4 The inner wall surface of the upper fixed cover 4 near the bottom is provided with a bevel 401. After the upper cover 2 and the upper fixed cover 4 are threaded together, the gap 201 is reduced by the action of the bevel 401, thereby achieving a seal.

[0034] The upper end of the cover body is connected to an outer port 203. A sealing groove is provided on the outer surface of the outer port 203, and a sealing ring 1 is installed on the sealing groove. An inner port 204 is provided inside the cover body, and the inner port 204 is connected to the outer port 203.

[0035] In this embodiment, a sealing groove is provided on the outer surface of the inner port 204.

[0036] The outer surface of the upper cover body near the outer port 203 is provided with an external thread 205, and the inner wall of the upper fixed cover 4 is provided with an internal thread 402 that matches the external thread 205.

[0037] The outer diameter of the inner port 204 is smaller than the upper port of the bracket 5; the outer diameter of the upper cover 2 is smaller than the inner diameter of the upper fixed cover 4.

[0038] The inner port 204 of the upper cover 2 is inserted into the upper port of the bracket 5. At this time, a sealing ring 3 is installed in the sealing groove on the outer surface of the inner port 204, so that the upper cover 2 and the bracket 5 are sealed. When the upper cover 2 is threadedly connected to the upper fixed cover 4, the gap 201 is reduced under the action of the inclined surface 401, thereby achieving a seal. At the same time, the rib 202 is inserted into the surface of the filter material 6 to form a seal.

[0039] The sealing lower cover assembly includes a lower cover 8 and a lower fixing cover 9. Please refer to [reference needed]. Figure 5 The bottom upper surface of the lower cover 8 is provided with a connection port 801, the outer surface of the connection port 801 is provided with a sealing groove, the outer surface of the lower cover 8 is provided with several notches 802 evenly, the inner wall of the lower cover 8 is provided with ribs 803 near the upper port, and the outer surface of the lower cover 8 is provided with external threads 804.

[0040] Please refer to Figure 6 The inner wall surface of the lower fixed cover 9 near the upper port is provided with a bevel 901. When the lower cover 8 and the lower fixed cover 9 are engaged, the gap 802 is reduced by the bevel 901, thereby achieving a seal.

[0041] The inner wall surface of the lower fixed cover 9 near the lower port is provided with an internal thread 902 that matches the external thread 804. The outer diameter of the lower cover 8 is smaller than the inner diameter of the lower fixed cover 9; the outer diameter of the connection port 801 is smaller than the inner diameter of the lower port of the filter material 6.

[0042] The connection port 801 of the lower cover 8 is inserted into the lower port of the carbon fiber filter material 6. At this time, a sealing ring 7 is installed in the sealing groove on the outer surface of the connection port 801. After the lower cover 8 and the lower fixed cover 9 are threaded together, the gap 802 is reduced by the action of the inclined surface 901, thereby achieving a seal. At the same time, the rib 803 is inserted into the surface of the filter material 6 to form a seal.

Claims

1. A non-adhesive-filled filter cartridge sealing structure, comprising a support (5) having a plurality of filter holes on its outer surface, wherein filter media (6) is rolled around the support (5), and the upper end of the support (5) is a water outlet. During normal filtration, water enters from the surface of the filter media (6), passes through the filter media (6), and flows out from the water outlet, characterized in that... The outlet is provided with a sealing cover assembly for sealing the filter element, and the lower port of the filter material (6) is provided with a sealing cover assembly.

2. The non-adhesive-filled filter element sealing structure according to claim 1, characterized in that... The sealing cover assembly includes an upper cover (2) and an upper fixed cover (4). The upper cover (2) includes an upper cover body. The upper cover body is uniformly provided with a number of notches (201) along its circumferential direction. The inner wall surface of the upper cover body near the bottom is provided with a number of ribs (202).

3. The non-refilled filter element sealing structure according to claim 2, characterized in that... The inner wall surface of the upper fixed cover (4) near the bottom end is provided with a slope (401). When the upper cover (2) and the upper fixed cover (4) are engaged, the gap (201) is reduced under the action of the slope (401), thereby achieving a seal.

4. The non-adhesive-filled filter element sealing structure according to claim 2, characterized in that... The upper end of the cover body is connected to an outer port (203), and a sealing groove is provided on the outer surface of the outer port (203), wherein a sealing ring (1) is installed on the sealing groove. The upper cover body is provided with an inner port (204), and the inner port (204) is connected to the outer port (203).

5. The non-adhesive-filled filter element sealing structure according to claim 4, characterized in that... The inner port (204) has a sealing groove on its outer surface; the upper cover body has an external thread (205) on its outer surface near the outer port (203), and the inner wall of the upper fixed cover (4) has an internal thread (402) that matches the external thread (205).

6. The non-adhesive-filled filter element sealing structure according to claim 4, characterized in that... The outer diameter of the inner port (204) is smaller than that of the upper port of the bracket (5); the outer diameter of the upper cover (2) is smaller than that of the inner diameter of the upper fixed cover (4).

7. The non-adhesive-filled filter element sealing structure according to claim 1, characterized in that... The sealing lower cover assembly includes a lower cover (8) and a lower fixed cover (9). The lower cover (8) has a connection port (801) on its bottom upper surface. The connection port (801) has a sealing groove on its outer surface. The lower cover (8) has several notches (802) evenly distributed on its outer surface. The lower cover (8) has a rib (803) near the upper port on its inner wall surface. The lower cover (8) has an external thread (804) on its outer surface.

8. The non-refilled filter element sealing structure according to claim 7, characterized in that... The inner wall surface of the lower fixed cover (9) near the upper port is provided with a second inclined surface (901). When the lower cover (8) and the lower fixed cover (9) are engaged, the gap (802) is reduced under the action of the second inclined surface (901), thereby achieving a seal.

9. The non-adhesive-filled filter element sealing structure according to claim 7, characterized in that... The inner wall surface of the lower fixed cover (9) near the lower port is provided with an internal thread 2 (902). The outer diameter of the lower cover (8) is smaller than the inner diameter of the lower fixed cover (9). The outer diameter of the connection port (801) is smaller than the inner diameter of the lower port of the filter material (6).

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