A pressable filter cartridge end cap structure with a sealing ring

Abstract

The utility model discloses a kind of pressable filter core end cover structure with sealing ring, including lower end cap and upper end cap, the cylindrical filter core is equipped between lower end cap and upper end cap, lower end cap side is equipped with first positioning rod, the upper end cap side is equipped with second positioning rod, second positioning rod lower end is equipped with third positioning rod, and the positioning groove of third positioning rod and the first positioning rod one end is inserted and is matched, positioning groove and third positioning rod are also equipped with locking mechanism, the utility model utilizes lower end cap side is equipped with first positioning rod, upper end cap side is equipped with second positioning rod and third positioning rod, the positioning groove of third positioning rod and the first positioning rod one end is inserted and is matched, lower end cap and upper end cap are fixed in the way of press insertion in cylindrical filter core both ends, convenient and fast dismounting.

Description

Technical Field

[0001] This utility model relates to the field of filter element end cap technology, specifically a pressable filter element end cap structure with a sealing ring. Background Technology

[0002] Filter cartridges are core consumables in the filtration industry, widely used in water purifiers, air purification, and other fields. Filter cartridges separate solid particles from liquids or gases, or allow different substances to come into full contact, accelerating reaction time. This protects the normal operation of equipment or ensures air cleanliness. When fluid enters a filter cartridge containing a filter screen of a specific size, impurities are blocked, while clean fluid flows out through the filter cartridge. Liquid filter cartridges purify contaminated liquids (including oil, water, etc.) to a state suitable for production and daily life, achieving a certain level of cleanliness. Filter cartridges need to be connected and secured using end caps.

[0003] A hydraulic filter element with a valve-type end cap snap-fit ​​structure, as described in application number 202021485047.9, includes an upper end cap, a central tube, a lower end cap, a filter element, a pressure relief spring, and a plug. The lower end cap has a cavity snap-fit ​​structure on its inner side to ensure that the upper and lower end caps are not easily detached when the amount of glue is insufficient, and the entire hydraulic filter element is snap-fit ​​assembled with high efficiency. The lower end cap integrates a pressure relief valve. When the external pressure of the hydraulic filter element reaches the designed pressure value, the plug of the pressure relief valve is pushed open, and pressure can be relieved by using the gap between the plug and the pressure relief hole on the lower end cap. However, it is not convenient to fix the lower and upper end caps to the two ends of the cylindrical filter element by pressing and plugging, resulting in inconvenience in disassembling and assembling the filter element end caps. Utility Model Content

[0004] The purpose of this utility model is to provide a pressable filter element end cap structure with a sealing ring, so as to solve the problem in the prior art that it is not convenient to fix the lower end cap and the upper end cap to the two ends of the cylindrical filter element by pressing and plugging, resulting in inconvenience in disassembling and assembling the filter element end cap.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressable filter element end cap structure with a sealing ring, comprising a lower end cap and an upper end cap, wherein a cylindrical filter element is disposed between the lower end cap and the upper end cap, a first positioning rod is disposed on one side of the lower end cap, a second positioning rod is disposed on one side of the upper end cap, a third positioning rod is disposed at the lower end of the second positioning rod, and the third positioning rod is inserted into a positioning groove at one end of the first positioning rod, wherein the positioning groove and the third positioning rod are further provided with a locking mechanism.

[0006] Furthermore, the outer diameter of the third positioning rod is smaller than the inner diameter of the positioning groove, and the depth of the positioning groove is the insertion length.

[0007] Furthermore, the locking mechanism includes a locking hole provided on the side wall of the positioning groove, and a locking rod is elastically slidably provided in the limiting groove inside one end of the third positioning rod, and the locking rod is elastically engaged with the locking hole.

[0008] Furthermore, one end of the locking rod is elastically slidably disposed in the limiting groove via a limiting slider and a first spring.

[0009] Furthermore, the limiting groove is also provided with a guide rod that slides with the limiting slider, and a first spring is sleeved on the outer side of one end of the guide rod.

[0010] Furthermore, the upper end cover is provided with an installation groove, and a sealing ring is provided in the installation groove via a second spring, with a sealing gasket on the lower side of the sealing ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model utilizes a first positioning rod on one side of the lower end cover and a second and third positioning rod on one side of the upper end cover. The third positioning rod is inserted into the positioning groove at one end of the first positioning rod, which facilitates the lower end cover and the upper end cover to be fixed to both ends of the cylindrical filter element by pressing and inserting. The assembly and disassembly are convenient and quick.

[0013] 2. This utility model utilizes the positioning groove and the third positioning rod, and also provides a locking mechanism. The locking mechanism includes a locking hole set in the side wall of the positioning groove, and a locking rod elastically sliding in the limiting groove inside one end of the third positioning rod. The locking rod is elastically engaged with the locking hole to lock the third positioning rod inserted in the positioning groove, which facilitates the improvement of the stability of the insertion and fixing between the lower end cover and the upper end cover.

[0014] 3. This utility model utilizes the installation groove provided in the upper end cover, and the installation groove is provided with a sealing ring body through a second spring. The sealing ring body is provided with a sealing gasket on the lower side, which can elastically press the sealing ring body onto one end of the cylindrical filter element, thereby improving the sealing performance of one end of the cylindrical filter element installed in the upper end cover. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a longitudinal sectional view of the upper end cover structure of this utility model;

[0018] Figure 3 This is an enlarged schematic diagram of the structure at point A of this utility model.

[0019] In the diagram: 1. Lower end cap; 2. Cylindrical filter element; 3. Upper end cap; 4. First positioning rod; 5. Second positioning rod; 6. Second spring; 7. Mounting groove; 8. Sealing ring; 9. Sealing gasket; 10. Locking rod; 11. Third positioning rod; 12. Positioning groove; 13. Locking hole; 14. Limiting slide groove; 15. Guide rod; 16. First spring; 17. Limiting slider. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , Figure 2 , Figure 3 In this embodiment of the present invention, a pressable filter element end cap structure with a sealing ring includes a lower end cap 1 and an upper end cap 3. A cylindrical filter element 2 is disposed between the lower end cap 1 and the upper end cap 3. A first positioning rod 4 is disposed on one side of the lower end cap 1, and a second positioning rod 5 is disposed on one side of the upper end cap 3. A third positioning rod 11 is disposed at the lower end of the second positioning rod 5, and the third positioning rod 11 is inserted into the positioning groove 12 at one end of the first positioning rod 4. The outer diameter of the third positioning rod 11 is smaller than the inner diameter of the positioning groove 12, and the depth of the positioning groove 12 is the insertion length. The insertion of the third positioning rod 11 into the positioning groove 12 at one end of the first positioning rod 4 facilitates the fixing of the lower end cap 1 and the upper end cap 3 to both ends of the cylindrical filter element 2 by pressing and inserting.

[0022] like Figure 1 and Figure 3As shown, in order to improve the stability of the insertion and fixing between the lower end cover 1 and the upper end cover 3, a locking mechanism is also provided in the positioning groove 12 and the third positioning rod 11. The locking mechanism includes a locking hole 13 provided in the side wall of the positioning groove 12, and a locking rod 10 elastically sliding in the limiting slide groove 14 inside one end of the third positioning rod 11. The locking rod 10 is elastically engaged with the locking hole 13. One end of the locking rod 10 is elastically sliding in the limiting slide groove 14 through the limiting slider 17 and the first spring 16. The limiting slide groove 14 is also provided with a guide rod 15 that slides with the limiting slider 17. The first spring 16 is sleeved on the outside of one end of the guide rod 15 to lock the third positioning rod 11 inserted in the positioning groove 12, which facilitates the improvement of the stability of the insertion and fixing between the lower end cover 1 and the upper end cover 3. Moreover, one end of the locking rod 10 is set in a hemispherical shape, which makes it easy to pull the second positioning rod 5 in the opposite direction to make the locking rod 10 disengage from the locking hole 13, making disassembly and assembly convenient and quick.

[0023] like Figure 1 and Figure 2 As shown, an installation groove 7 is provided in the upper end cover 3, and a sealing ring 8 is provided in the installation groove 7 through the second spring 6. A sealing gasket 9 is provided on the lower side of the sealing ring 8, which can elastically press the sealing ring 8 onto one end of the cylindrical filter element 2, so as to improve the sealing performance of one end of the cylindrical filter element 2 installed in the upper end cover 3.

[0024] The working principle and usage process of this utility model are as follows: In use, the first positioning rod 4 is provided on one side of the lower end cover 1, and the second positioning rod 5 and the third positioning rod 11 are provided on one side of the upper end cover 3. The third positioning rod 11 is inserted into the positioning groove 12 at one end of the first positioning rod 4, which facilitates the lower end cover 1 and the upper end cover 3 to be fixed to both ends of the cylindrical filter element 2 by pressing and inserting. Moreover, the positioning groove 12 and the third positioning rod 11 are also provided with a locking mechanism to lock the third positioning rod 11 inserted in the positioning groove 12, which facilitates the stability of the insertion and fixing between the lower end cover 1 and the upper end cover 3, and makes disassembly and assembly convenient and quick.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressable filter cartridge end cap structure with a sealing ring, comprising a lower end cap (1) and an upper end cap (3), characterized in that: A cylindrical filter element (2) is provided between the lower end cover (1) and the upper end cover (3). A first positioning rod (4) is provided on one side of the lower end cover (1), and a second positioning rod (5) is provided on one side of the upper end cover (3). A third positioning rod (11) is provided at the lower end of the second positioning rod (5), and the third positioning rod (11) is inserted into the positioning groove (12) at one end of the first positioning rod (4). The positioning groove (12) and the third positioning rod (11) are also provided with a locking mechanism.

2. The pressable filter cartridge end cap structure with a sealing ring according to claim 1, characterized in that: The outer diameter of the third positioning rod (11) is smaller than the inner diameter of the positioning groove (12), and the depth of the positioning groove (12) is the insertion length.

3. The pressable filter cartridge end cap structure with a sealing ring according to claim 1, characterized in that: The locking mechanism includes a locking hole (13) provided on the side wall of the positioning groove (12), and a locking rod (10) is elastically slidably provided in the limiting slide groove (14) inside one end of the third positioning rod (11), and the locking rod (10) is elastically engaged with the locking hole (13).

4. The pressable filter cartridge end cap structure with a sealing ring according to claim 3, characterized in that: One end of the locking rod (10) is elastically slidably disposed in the limiting groove (14) through the limiting slider (17) and the first spring (16).

5. The pressable filter cartridge end cap structure with a sealing ring according to claim 4, characterized in that: The limiting groove (14) is also provided with a guide rod (15) that slides with the limiting slider (17), and a first spring (16) is sleeved on the outside of one end of the guide rod (15).

6. The pressable filter cartridge end cap structure with sealing ring according to claim 1, characterized in that: The upper end cover (3) is provided with an installation groove (7), and a sealing ring (8) is provided in the installation groove (7) via a second spring (6), and a sealing gasket (9) is provided on the lower side of the sealing ring (8).

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