A filter that is easy to replace the filter screen

Abstract

The utility model relates to the technical field of filters, and discloses a filter that is easy to replace the filter screen, including a filter, a sealing cover is threadedly installed on the top of the filter, a water inlet pipe is connected to the top of one side of the filter, a water outlet pipe is connected to the bottom of the other side of the filter, a positioning ring is fixedly installed on the top side of the filter, and a quick disassembly mechanism is installed on the positioning ring. When the utility model is installed through the filter cartridge, it can be directly inserted into the inside of the positioning ring and the extrusion ring, and the extrusion ring is squeezed to continuously compress the first springs sleeved on the outer wall of the multiple groups of limit rods, and the filter cartridge is slowly rotated so that the block on the top of the filter cartridge is squeezed by the extrusion ring and the positioning plate, and the filter cartridge can be quickly positioned inside the filter. Conversely, the filter cartridge is rotated again to separate the block on the top of the filter cartridge from the positioning plate, and the filter cartridge will be automatically supported by the extrusion ring to complete the disassembly, so that the filter cartridge can be quickly disassembled and the inner wall of the filter cartridge can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a filter which is convenient for replacing a filter screen. Background Art

[0002] At present, the filter is an indispensable device on the medium conveying pipeline. It is usually installed at the inlet end of the pressure reducing valve, pressure relief valve, water level valve, and other equipment of Fanggong filter. The filter is composed of a cylinder, a stainless steel filter screen, a sewage discharge part, a transmission device and an electrical control part. After the water to be treated passes through the filter cartridge of the filter screen, its impurities are blocked.

[0003] Among them, in the sewage treatment process, the sewage needs to be purified to meet the water quality requirements for discharge into a certain water body or reuse. In the sewage, there are often many particles or solid debris, so a filter is needed to filter it first.

[0004] When the filter is in use, as the filter is used for a long time, the surface of the filter screen inside the filter will absorb a large amount of particulate matter, which will seriously affect the filtering effect. The filter screen needs to be disassembled regularly to ensure the normal use of the filter. However, when disassembling the filter screen on the market, multiple sets of bolts need to be screwed together, and the steps are relatively cumbersome. Therefore, a new technical solution needs to be designed to solve the problem, which can quickly disassemble and assemble the filter screen. Utility Model Content

[0005] The purpose of the utility model is to provide a filter which is convenient for replacing the filter screen, thereby solving the problems raised in the background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a filter that is easy to replace the filter screen, comprising a filter, a sealing cap is threadedly installed on the top of the filter, a water inlet pipe is connected to the top of one side of the filter, and a water outlet pipe is connected to the bottom of the other side of the filter, a positioning ring is fixedly installed on the top side of the filter, and a quick-disassembly mechanism is installed on the positioning ring;

[0007] The quick-disassembly mechanism includes a plurality of groups of equally spaced limiting holes on the outside of the positioning ring, limiting rods movably installed in each group of limiting holes, an extrusion ring fixedly installed on the top of each group of limiting rods, a first spring sleeved on the outer wall of each group of limiting rods, and positioning plates fixedly installed on both sides of the top of the filter.

[0008] As an optional solution of the technical solution of the present application, a filter cartridge is detachably installed inside the filter, and both sides of each group of the first springs are fixedly installed to the outer wall of the positioning ring and the extrusion ring respectively, so as to support the extrusion ring.

[0009] As an optional solution of the technical solution of the present application, the filter cartridge is movably connected to the inner wall of the positioning ring and the extrusion ring, and the top of the filter cartridge is fixedly installed with abutment rings on both sides. The two groups of abutment rings correspond to the extrusion plate and the positioning plate respectively, so as to position the filter cartridge.

[0010] As an optional solution of the technical solution of the present application, a limiting slip ring is slidably installed inside the water inlet pipe, and a docking mechanism is installed on one side of the limiting slip ring.

[0011] As an optional solution of the technical solution of the present application, the docking mechanism includes an insert tube installed in communication with one side of the limit slip ring, a second spring sleeved on one side of the insert tube, and a rubber ring fixedly installed on one side of the outer wall of the insert tube. The second spring is respectively fixedly installed on the limit slip ring and the outer wall of the insert tube, so that the insert tube can be inserted into the filter cartridge.

[0012] As an optional solution of the technical solution of the present application, a docking groove is opened on one side of the outer wall of the filter cartridge, and the docking groove corresponds to the insert cartridge, so that the water inlet pipe can be introduced into the interior of the filter cartridge.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The technical solution of the present application can be directly inserted into the positioning ring and the extrusion ring during installation through the filter cartridge, and the extrusion ring is squeezed to continuously compress the first springs sleeved on the outer walls of the multiple sets of limit rods, and then the filter cartridge is slowly rotated so that the block on the top of the filter cartridge is squeezed by the extrusion ring and the positioning plate, so that the filter cartridge can be quickly positioned inside the filter. Conversely, the filter cartridge is rotated again to separate the block on the top of the filter cartridge from the positioning plate, and the filter cartridge will be automatically supported by the extrusion ring to complete the disassembly, so that the filter cartridge can be quickly disassembled and the inner wall of the filter cartridge can be cleaned.

[0015] 2. The technical solution of the present application is to install a limit slip ring by sliding inside the water inlet pipe, and a docking mechanism is installed on one side of the limit slip ring. When the operator is installing the filter cartridge, the operator needs to continuously rotate and adjust the filter cartridge, and the outer wall of the filter cartridge will continuously squeeze the insert cartridge in the water inlet pipe. When the insert cartridge corresponds to the docking groove on the filter cartridge, the second spring installed on the insert cartridge is used to quickly squeeze the insert cartridge into the docking groove, so that the water flowing inside the water inlet pipe is continuously introduced into the filter cartridge for efficient filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of a filter that is easy to replace the filter screen in the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a docking mechanism of a filter that is convenient for replacing the filter screen in the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the filter cartridge structure of a filter that is easy to replace the filter screen.

[0020] In the figure: 1. filter; 11. sealing cover; 12. water inlet pipe; 13. water outlet pipe; 2. positioning ring; 21. limiting hole; 22. limiting rod; 23. extrusion ring; 24. first spring; 25. positioning plate; 3. filter cartridge; 31. stop block; 32. docking groove; 4. limiting slip ring; 41. insert cylinder; 42. second spring; 43. rubber ring. DETAILED DESCRIPTION

[0021] See also Figure 1-3 The utility model provides a technical solution: a filter that is easy to replace the filter screen, including a filter 1, characterized in that: a sealing cover 11 is threadedly installed on the top of the filter 1, a water inlet pipe 12 is connected to the top of one side of the filter 1, and a water outlet pipe 13 is connected to the bottom of the other side of the filter 1, and a positioning ring 2 is fixedly installed on the top side of the filter 1, and a quick disassembly mechanism is installed on the positioning ring 2;

[0022] The quick disassembly and assembly mechanism includes a plurality of groups of equally spaced limiting holes 21 provided on the outside of the positioning ring 2, limiting rods 22 movably installed in each group of limiting holes 21, an extrusion ring 23 fixedly installed on the top of each group of limiting rods 22, a first spring 24 sleeved on the outer wall of each group of limiting rods 22, and a positioning plate 25 fixedly installed on both sides of the top of the filter 1. A filter cartridge 3 is detachably installed inside the filter 1, and both sides of each group of first springs 24 are fixedly installed on the outer walls of the positioning ring 2 and the extrusion ring 23 respectively.

[0023] In this technical solution, when installing, the filter cartridge 3 can be directly inserted into the positioning ring 2 and the extrusion ring 23, and the extrusion ring 23 can be squeezed to continuously compress the first springs 24 sleeved on the outer walls of the multiple groups of limit rods 22. The filter cartridge 3 is slowly rotated so that the stop block 31 at the top of the filter cartridge 3 is squeezed by the extrusion ring 23 and the positioning plate 25, and the filter cartridge 3 can be quickly positioned inside the filter 1. Conversely, the filter cartridge 3 is rotated again to separate the stop block 31 at the top of the filter cartridge 3 from the positioning plate 25, and the filter cartridge 3 is automatically supported by the extrusion ring 23 to complete the disassembly, so that the filter cartridge 3 can be quickly disassembled and the inner wall of the filter cartridge 3 can be cleaned.

[0024] In some technical solutions, a limiting slip ring 4 is slidably installed inside the water inlet pipe 12, and a docking mechanism is installed on one side of the limiting slip ring 4. The docking mechanism includes an insert tube 41 installed on one side of the limiting slip ring 4, a second spring 42 sleeved on one side of the insert tube 41, and a rubber ring 43 fixedly installed on one side of the outer wall of the insert tube 41. The second spring 42 is fixedly installed on the limiting slip ring 4 and the outer wall of the insert tube 41, respectively, so that the insert tube can be inserted into the filter cartridge 3.

[0025] In this technical solution, when the operator is installing the filter cartridge 3, since the operator needs to continuously rotate and adjust the filter cartridge 3, the outer wall of the filter cartridge 3 will continuously squeeze the insert cartridge 41 in the water inlet pipe 12. When the insert cartridge 41 corresponds to the docking groove 32 on the filter cartridge 3, the second spring 42 installed on the insert cartridge 41 cooperates to quickly squeeze the insert cartridge 41 into the docking groove 32, so that the water flowing inside the water inlet pipe 12 is continuously introduced into the filter cartridge 3 for efficient filtration.

[0026] In some technical solutions, a docking groove 32 is opened on one side of the outer wall of the filter cartridge 3 , and the docking groove 32 corresponds to the inserting tube 41 , so that the water inlet pipe 12 can be introduced into the interior of the filter cartridge 3 .

[0027] In this technical solution, after the insert 41 is docked with the docking groove 32 , the water flowing inside the water inlet pipe 12 can be filtered.

[0028] In some technical solutions, the filter cartridge 3 is movably connected to the inner wall of the positioning ring 2 and the extrusion ring 23, and abutment rings are fixedly installed on both sides of the top of the filter cartridge 3. The two sets of abutment rings correspond to the extrusion plate and the positioning plate 25 respectively, so that the filter cartridge 3 can be positioned.

[0029] In this technical solution, when the stopper 31 on the top of the filter cartridge 3 is squeezed by the squeezing ring 23 and the positioning plate 25 , the filter cartridge 3 can be firmly positioned inside the filter 1 .

[0030] When a filter that is easy to replace the filter screen is used, it should be noted that the utility model is a filter that is easy to replace the filter screen, and each component is a universal standard part or a component known to technical personnel in this field, and its structure and principle can be known to technical personnel through technical manuals or through conventional experimental methods.

[0031] When in use, first screw on the top cover 11 of the filter 1, insert the filter cartridge 3 to be installed into the inside of the filter 1, then the water introduced by the water inlet pipe 12 can be filtered and discharged from the water outlet pipe 13. At the same time, with the quick disassembly mechanism, when the filter cartridge 3 is being installed, it can be directly inserted into the positioning ring 2 and the squeezing ring 23, and the squeezing ring 23 is squeezed to make the first springs 24 sleeved on the outer walls of the multiple groups of limit rods 22 continuously compressed, and then slowly rotate the filter cartridge 3 so that the block 31 on the top of the filter cartridge 3 is squeezed by the squeezing ring 23 and the positioning plate 25, so that the filter cartridge 3 can be quickly positioned inside the filter 1, and vice versa, the filter cartridge 3 is rotated again to separate the block 31 on the top of the filter cartridge 3 from the positioning plate 25. , the filter cartridge 3 will be automatically supported by the squeezing ring 23 and the disassembly is completed, so that the filter cartridge 3 can be quickly disassembled and assembled, and the inner wall of the filter cartridge 3 can be cleaned. At the same time, a limit slip ring 4 is installed by sliding inside the water inlet pipe 12, and a docking mechanism is installed on one side of the limit slip ring 4. When the operator is installing the filter cartridge 3, since the operator needs to continuously rotate and adjust the filter cartridge 3, the outer wall of the filter cartridge 3 will continuously squeeze the insert cylinder 41 in the water inlet pipe 12. When the insert cylinder 41 corresponds to the docking groove 32 on the filter cartridge 3, the second spring 42 installed on the insert cylinder 41 is cooperated to quickly squeeze the insert cylinder 41 into the docking groove 32, so that the water flowing inside the water inlet pipe 12 is continuously introduced into the filter cartridge 3 for efficient filtration.

Claims

1. A filter for easily replacing a filter screen, comprising a filter (1), characterized in that: A sealing cap (11) is threadedly mounted on the top of the filter (1); a water inlet pipe (12) is connected to and mounted on the top of one side of the filter (1); a water outlet pipe (13) is connected to and mounted on the bottom of the other side of the filter (1); a positioning ring (2) is fixedly mounted on the top side of the filter (1); and a quick-release assembly mechanism is mounted on the positioning ring (2); The quick-disassembly mechanism comprises a plurality of groups of equally spaced limiting holes (21) provided on the outer side of the positioning ring (2), limiting rods (22) movably installed in each group of limiting holes (21), an extrusion ring (23) fixedly installed on the top of each group of limiting rods (22), a first spring (24) sleeved on the outer wall of each group of limiting rods (22), and positioning plates (25) fixedly installed on both sides of the top of the filter (1).

2. A filter that is easy to replace the filter screen according to claim 1, characterized in that: A filter cartridge (3) is detachably mounted inside the filter (1), and both sides of each group of the first springs (24) are fixedly mounted to the outer walls of the positioning ring (2) and the extrusion ring (23), respectively.

3. A filter for easy replacement of filter screen according to claim 2, characterized in that: The filter cartridge (3) is movably connected to the inner wall of the positioning ring (2) and the extrusion ring (23), and both sides of the top of the filter cartridge (3) are fixedly installed with abutment rings, and the two groups of abutment rings correspond to the extrusion plate and the positioning plate (25) respectively.

4. The filter for easy replacement of filter screen according to claim 1, characterized in that: A limit slip ring (4) is slidably installed inside the water inlet pipe (12), and a docking mechanism is installed on one side of the limit slip ring (4).

5. A filter for easily replacing a filter screen according to claim 4, characterized in that: The docking mechanism comprises an insert sleeve (41) installed in communication with one side of the limiting slip ring (4), a second spring (42) sleeved on one side of the insert sleeve (41), and a rubber ring (43) fixedly installed on one side of the outer wall of the insert sleeve (41), wherein the second spring (42) is fixedly installed on the limiting slip ring (4) and the outer wall of the insert sleeve (41), respectively.

6. The filter for easily replacing the filter screen according to claim 2, characterized in that: A docking groove (32) is provided on one side of the outer wall of the filter cartridge (3), and the docking groove (32) corresponds to the insert cartridge (41).

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