A filter with a filter cartridge that is easy to replace

Abstract

The utility model is suitable for filtering device technical field provides a kind of filter of filter core convenient to replace, including the shell of two ends open and the shell cover being equipped with top, the water outlet pipe is communicated in the side of shell, detachably be provided with filter core in the inner chamber of shell, the fixed ring for fixing filter core is provided in the bottom of shell inner chamber, the bottom of shell inner chamber is provided with multiple elastic telescopic link that can filter core be bounced up, the compacting mechanism for compacting filter core bounce is detachably provided in the upper portion of shell inner chamber.The filter core convenient to replace of the filter, by setting fixed ring, filter core is placed in filter housing and is supported on the bottom of fixed ring by being sleeved on it, the bottom of filter core is fixed, meanwhile, detachable compacting mechanism is also provided, the top of filter core is fixed by compacting mechanism, the installation and disassembly of filter core are facilitated, and elastic member is also provided in the bottom of shell, when the top of filter core loses fixation, filter core is bounced up by elastic member, and filter core is conveniently removed.

Description

Technical Field

[0001] This utility model belongs to the technical field of filtration devices, and in particular relates to a filter that is easy to replace the filter element. Background Technology

[0002] Filters are an indispensable device in pipelines transporting media, typically installed at the inlet end of pressure reducing valves, pressure relief valves, positioning water valves, and other equipment. After the filter cartridge with a filter screen of a certain size is installed, impurities are blocked. When cleaning is required, simply remove the detachable filter cartridge, clean it, and reinstall it. Therefore, its use and maintenance are extremely convenient.

[0003] However, in existing filters, the filter element is often fixed with screws, as shown in Chinese Patent Publication No. CN212799900U. Although the screw installation method is relatively stable, it often causes inconvenience when disassembling and cleaning. In addition, the filter element itself does not have an easy gripping part, making it difficult to remove the filter element. Therefore, a filter that is easy to replace the filter element is needed to solve the above-mentioned problems. Utility Model Content

[0004] This utility model provides a filter that facilitates filter element replacement, aiming to solve the problems of existing filters, which are usually fixed with screws. Filters fixed with screws are inconvenient to disassemble and clean, and the filter element itself does not have an easy-to-grip part, making it troublesome to remove the filter element from the filter.

[0005] This utility model is implemented as follows: a filter that facilitates filter element replacement includes a housing with open ends and a cap on top, one side of which is connected to a water outlet pipe. The filter element is detachably disposed within the inner cavity of the housing. A fixing ring for securing the filter element is provided at the bottom of the inner cavity. Multiple elastic telescopic rods that can spring the filter element upwards are provided at the bottom of the inner cavity and outside the fixing ring. A pressing mechanism for pressing the spring-loaded filter element is detachably disposed at the upper part of the inner cavity.

[0006] Preferably, the pressing mechanism includes a mounting plate and multiple insert rods. The top of the mounting plate has a recessed cavity, and the inner wall of the mounting plate has multiple through slots extending outward. Each insert rod can be pulled laterally within one of the through slots. The upper part of the inner wall of the housing has multiple limiting holes. When each insert rod is inserted into one of the limiting holes, the mounting plate can be fixed in the upper part of the inner cavity of the housing and the top of the filter element can be pressed.

[0007] Preferably, the clamping mechanism further includes multiple push blocks, multiple springs, and multiple mounting blocks. The multiple mounting blocks are respectively fixedly connected to the inner wall surface of the cavity at positions corresponding to one of the through slots. The outer end of each insertion rod continuously passes through one mounting block and one through slot and extends outward. Each push block is fixedly connected to the inner end of one insertion rod. Each spring is respectively disposed between one mounting block and one push block and located on the outside of one insertion rod.

[0008] Preferably, the clamping mechanism further includes a rotating shaft, a fixed block, and multiple connecting rods. The rotating shaft is rotatably and vertically disposed at the center of the cavity. The fixed block is fixedly connected to the rotating shaft. One end of each connecting rod is hinged to a fixed block, and the other end of each connecting rod is hinged to a push block. When the rotating shaft rotates and drives the fixed block to rotate, each insert rod moves toward the rotating shaft.

[0009] Preferably, a first sealing ring is provided on the outer ring surface of the fixing ring for sealing the gap between the outer ring surface of the fixing ring and the inner ring surface of the bottom of the filter element.

[0010] Preferably, a second sealing ring is provided on the inner wall surface of the housing to seal the gap between the outer ring surface of the filter element and the inner wall surface of the housing.

[0011] Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: The filter of this utility model, which facilitates filter element replacement, is provided with a fixing ring. The filter element is placed in the filter housing and fitted onto the fixing ring to support its bottom and fix the bottom of the filter element. At the same time, a detachable clamping mechanism is provided to fix the top of the filter element, which facilitates the installation and removal of the filter element. Furthermore, an elastic element is provided at the bottom of the housing. When the top of the filter element is not fixed, the elastic element will pop the filter element upward, making it easy to remove the filter element. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the filter element after it has been removed in this utility model; Figure 3 This is a schematic diagram of the clamping mechanism in this utility model.

[0013] In the diagram: 1-shell, 2-filter element, 3-fixing ring, 4-elastic telescopic rod, 5-first sealing ring, 6-second sealing ring, 7-mounting plate, 8-insertion rod, 9-limiting hole, 10-connecting rod, 11-rotating shaft, 12-fixing block, 13-blocking block, 14-spring, 15-push block, 16-support ring, 17-mounting block. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] First Embodiment Please see Figure 1 and Figure 2 This utility model provides a technical solution: a filter that facilitates filter element replacement, comprising a housing 1 with open ends and a top cover, wherein a water outlet pipe is connected to one side of the housing 1. The filter element 2 is detachably disposed within the inner cavity of the housing 1; a fixing ring 3 for fixing the filter element 2 is disposed at the bottom of the inner cavity of the housing 1; multiple elastic telescopic rods 4 for lifting the filter element 2 upwards are disposed at the bottom of the inner cavity of the housing 1 and outside the fixing ring 3; and a pressing mechanism for pressing the filter element 2 upwards is detachably disposed at the upper part of the inner cavity of the housing 1. In this embodiment, the housing 1 is the housing of a right-angle filter. The filter is connected to the water inlet pipe at the bottom, and the water source is discharged through the outlet pipe connected to one side after being filtered by the filter. The fixing ring 3 is inserted into the inner cavity of the housing 1 from bottom to top and is connected to the inner cavity of the housing 1. The filter element 2 is a relatively common cylindrical shape, and the bottom of the filter element 2 can be precisely fitted into the fixing ring 3. A support ring 16 is also provided at the bottom of the inner cavity of the housing 1. When the filter element 2 is completely placed in the housing 1, the bottom end is tightly fitted with the top end of the support ring 16. The support ring 16 provides support for the bottom of the filter element 2. It should be noted that the components used in the housing 1 are all engineering plastics or other waterproof materials, and will not rust or have other problems that reduce the service life of the materials due to use in water.

[0016] Please refer to Figure 1 and Figure 3 Furthermore, the pressing mechanism includes a mounting plate 7 and multiple insert rods 8. The top of the mounting plate 7 has a recessed cavity, and multiple through slots are formed on the inner wall of the mounting plate 7 extending outward. Each insert rod 8 can be pulled laterally into one through slot. Multiple limiting holes 9 are formed on the upper part of the inner wall of the housing 1. When each insert rod 8 is inserted into a limiting hole 9, the mounting plate 7 can be fixed in the upper part of the inner cavity of the housing 1 and the top of the filter element 2 can be pressed.

[0017] In this embodiment, a locking block 13 is fixedly connected to the bottom of the mounting plate 7. Since the filter element 2 is cylindrical, when the bottom of the mounting plate 7 is tightly fitted with the top of the filter element 2, the locking block 13 will be embedded in the inner cavity of the filter element 2 to further press and fix the top of the filter element 2. The filter element 2 is of a uniform type by default. The position of the limiting hole 9 is exactly the position where the mounting plate 7 can press the top of the filter element 2 after the filter element 2 is completely placed into the housing 1.

[0018] Second Embodiment Based on the same concept as the first embodiment described above, please refer to Figure 1 and Figure 3 Furthermore, the clamping mechanism also includes multiple push blocks 15, multiple springs 14, and multiple mounting blocks 17. The multiple mounting blocks 17 are respectively fixedly connected to the inner wall surface of the cavity at a position corresponding to a through groove. The outer end of each insertion rod 8 continuously passes through a mounting block 17 and a through groove and extends outward. Each push block 15 is fixedly connected to the inner end of an insertion rod 8. Each spring 14 is respectively disposed between a mounting block 17 and a push block 15 and located on the outside of an insertion rod 8.

[0019] The clamping mechanism also includes a rotating shaft 11, a fixing block 12, and multiple connecting rods 10. The rotating shaft 11 is rotatably and vertically arranged at the center of the cavity. The fixing block 12 is fixedly connected to the rotating shaft 11. One end of each connecting rod 10 is hinged to a fixing block 12, and the other end of each connecting rod 10 is hinged to a push block 15. When the rotating shaft 11 rotates and drives the fixing block 12 to rotate, each insert rod 8 moves toward the rotating shaft 11.

[0020] In this embodiment, rotating the shaft 11 drives the fixing block 12 to rotate, thereby pulling all the insertion rods 8 towards the center, i.e., the shaft 11. At the same time, each push block 15 moves outward. At this time, the spring 14 undergoes elastic deformation due to the squeezing force between the push block 15 and the mounting block 17. It should be noted that the length of the insertion rod 8 inserted into the limiting hole 9 is limited. Therefore, the shaft 11 does not need to rotate a large angle; a rotation of less than or equal to 90° is sufficient to pull all the insertion rods 8 out of the limiting hole 9. When the shaft 11 is released, the push block 15 will move inward again and release the distance between itself and the mounting block 17. The spring 14 will return to its elastic state, and the insertion rod 8 will move outward again towards the mounting plate 7.

[0021] Please refer to Figure 1 and Figure 2 A first sealing ring 5 is provided on the outer ring surface of the fixing ring 3 to seal the gap between the outer ring surface of the fixing ring 3 and the inner ring surface at the bottom of the filter element 2.

[0022] In this embodiment, since the bottom of the housing 1 is connected to the water inlet pipe, a first sealing ring 5 is provided on the outer ring surface of the fixing ring 3 to prevent water from seeping out of the fixing ring 3 when water is introduced. Furthermore, a second sealing ring 6 is provided on the inner wall surface of the housing 1 to seal the gap between the outer ring surface of the filter element 2 and the inner wall surface of the housing 1.

[0023] In this embodiment, in order to prevent excessive water from seeping into the top of the housing 1 from the inner cavity of the housing 1 and below the mounting plate 7, a second sealing ring 6 is provided on the inner wall surface of the housing 1 and below the mounting plate 7.

[0024] The working principle and usage process of this utility model are as follows: After installation, first place the filter element 2 into the housing 1. The bottom of the filter element 2 will be fitted onto the outer ring surface of the fixing ring 3. Then, rotate the rotating shaft 11 to retract the insertion rod 8 and simultaneously place the mounting plate 7 into the housing 1, pressing the top of the filter element 2 firmly. Then, release the rotating shaft 11. At this time, each insertion rod 8 will be inserted into a limiting hole 9, and the filter element 2 will be fixed in the inner cavity of the housing 1. Then, the housing cover can be closed to connect the water inlet pipe and the water outlet pipe for filtration. To remove the filter element 2, the housing cover needs to be opened, and then the rotating shaft 11 needs to be rotated to retract the insertion rod 8. The filter element 2 will be elastically restored by the elastic telescopic rod 4 and popped upward. At this time, the filter element 2 can be removed for cleaning.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter with easy-to-replace filter element, comprising a housing (1) open at both ends and provided with a cover at the top, wherein a water outlet pipe is connected to one side of the housing (1), characterized in that: A filter element (2) is detachably disposed in the inner cavity of the housing (1). A fixing ring (3) for fixing the filter element (2) is disposed at the bottom of the inner cavity of the housing (1). A plurality of elastic telescopic rods (4) that can spring the filter element (2) upward are disposed at the bottom of the inner cavity of the housing (1) and outside the fixing ring (3). A pressing mechanism for pressing the filter element (2) to spring up is detachably disposed at the upper part of the inner cavity of the housing (1).

2. The filter with an easily replaceable filter element as described in claim 1, characterized in that: The pressing mechanism includes a mounting plate (7) and multiple insert rods (8). The top of the mounting plate (7) has a recessed cavity. Multiple through slots are formed on the inner wall of the mounting plate (7) extending outward. Each insert rod (8) can be pulled outward in one of the through slots. Multiple limiting holes (9) are formed on the upper part of the inner wall of the housing (1). When each insert rod (8) is inserted into one of the limiting holes (9), the mounting plate (7) can be fixed in the upper part of the inner cavity of the housing (1) and the top of the filter element (2) can be pressed.

3. A filter with an easily replaceable filter element as described in claim 2, characterized in that: The clamping mechanism also includes multiple push blocks (15), multiple springs (14) and multiple mounting blocks (17). The multiple mounting blocks (17) are fixedly connected to the inner wall surface of the cavity at a position corresponding to one of the through slots. The outer end of each insertion rod (8) continuously passes through one mounting block (17) and one of the through slots and extends outward. Each push block (15) is fixedly connected to the inner end of one insertion rod (8). Each spring (14) is respectively disposed between one mounting block (17) and one push block (15) and located on the outside of one insertion rod (8).

4. A filter with an easily replaceable filter element as described in claim 3, characterized in that: The clamping mechanism also includes a rotating shaft (11), a fixing block (12), and multiple connecting rods (10). The rotating shaft (11) is rotatably and vertically arranged at the center of the cavity. The fixing block (12) is fixedly connected to the rotating shaft (11). One end of each connecting rod (10) is hinged to a fixing block (12), and the other end of each connecting rod (10) is hinged to a push block (15). When the rotating shaft (11) rotates and drives the fixing block (12) to rotate, each insert rod (8) moves toward the rotating shaft (11).

5. A filter with an easily replaceable filter element as described in claim 1, characterized in that: The outer ring surface of the fixing ring (3) is provided with a first sealing ring (5) for sealing the gap between the outer ring surface of the fixing ring (3) and the inner ring surface at the bottom of the filter element (2).

6. A filter with an easily replaceable filter element as described in claim 1, characterized in that: A second sealing ring (6) is provided on the inner wall surface of the housing (1) to seal the gap between the outer ring surface of the filter element (2) and the inner wall surface of the housing (1).

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