Unidirectional filter convenient to disassemble quickly

Abstract

The utility model discloses a one-way filter convenient to quickly disassemble, which comprises a water inlet joint, a water flowing pipeline, a non-return unit, a filter unit, a connecting nut and a water outlet joint, one end of the non-return unit is connected with one end of the filter unit, and the non-return unit and the filter unit are positioned in the water flowing pipeline and the connecting nut; the connecting nut is responsible for connecting the water outlet connector and a water flowing pipeline, the non-return unit enables liquid to only flow in one direction and further has a water stopping function, the filtering unit is responsible for filtering the liquid, and after the single filter is installed, the filtering unit can jack up the non-return unit, so that the whole one-way filter circulates, and the liquid flows in from the water inlet connector and flows out from the water outlet connector. When the filtering unit is disassembled and washed, the non-return unit loses the pressure applied by the filtering unit and returns to the original position, the water flowing pipeline is blocked again, liquid cannot flow out, the whole structure is convenient to disassemble and assemble, and the filtering unit is convenient to wash.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a one-way filter which is easy to disassemble quickly. Background Art

[0002] Liquid filters are widely used in filtration and purification applications for wastewater purification, liquid separation, and other liquid-solid separation applications. Typically, after a period of use, filter residue and impurities in the liquid will coat the filter element, forming a layer of filter cake on the filter surface. This increases the resistance to the filtered liquid, severely impacting filtration effectiveness and reducing efficiency.

[0003] Existing liquid filters are not easy to clean during the filtering process of the filtered liquid. Most of the time, they are cleaned after the liquid filter is blocked or dirty. The filter is generally placed inside the instrument pipeline and is not easy to check frequently. It can only be cleaned regularly, which not only affects the filtration efficiency of the liquid filter, but also has low cleaning efficiency. For this reason, we need to design a one-way filter that is easy to disassemble quickly to achieve the beneficial effects of quickly disassembling the filter, facilitating cleaning, and maintaining filtration efficiency. Summary of the Invention

[0004] The purpose of the present utility model is to provide a one-way filter that is easy to disassemble quickly, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The one-way filter includes a water inlet joint, a water pipe, a check unit, a filter unit, a connecting nut and a water outlet joint. The water inlet joint and the water pipe are connected in a socket-and-spigot manner. The outlet end of the water inlet joint is inserted into the water pipe. The outlet end of the water pipe is provided with an external thread section. A protruding section is provided inside the water pipe. The protruding section in the water pipe is adjacent to the end of the external thread section away from the water outlet of the water pipe. One end of the connecting nut is provided with an internal thread section. The inner diameter of the connecting nut becomes smaller below the internal thread section. The other end of the connecting nut is provided with an external thread section. The water pipe and the internal thread section of the connecting nut are threadedly connected, one end of the water outlet joint is provided with an internal thread section, the inner diameter of the water outlet joint becomes smaller below the internal thread section, the water outlet joint and the external thread section of the connecting nut are threadedly connected, the check unit is located inside the water pipe, one end of the check unit is located between the water inlet joint and the protruding section in the water pipe, the other end of the check unit is connected to one end of the filter unit, and the other end of the filter unit is connected to the end face formed by the reduction of the inner diameter of the water outlet joint, and the filter unit is located inside the connecting nut and the water outlet joint.

[0007] When the single-way filter is installed, the filter unit pushes the check unit open to allow the single-way filter to flow throughout. The water inlet joint is connected to the water inlet pipe, and water is introduced into the water pipe. The water flows through the check unit to the filter unit for filtration, and then flows out through the water outlet joint.

[0008] Furthermore, the check unit includes a spring, a check pressure rod, a rubber ring and a nut, one end of the spring is connected to the nut, and the other end of the spring is connected to the protruding section in the water pipe, the outer diameter of the check pressure rod is smaller than the radius of the circle surrounded by the protruding section in the water pipe, one end of the check pressure rod is provided with an external threaded section, and the other end of the check pressure rod is provided with a cylindrical section, the radius of the cylindrical section at one end of the check pressure rod is smaller than the inner diameter of the water pipe and larger than the radius of the circle surrounded by the protruding section in the water pipe, the cylindrical section of the check pressure rod is located between the water inlet joint and the protruding section in the water pipe, one end of the external threaded section of the check pressure rod is threadedly connected to the nut, the closed end of the nut is connected to the filter unit, a groove is provided on the side of the check pressure rod, the groove is located between the cylindrical section of the check pressure rod and the protruding section in the water pipe, one end face of the groove is one end face of the cylindrical section of the check pressure rod, and the other end face of the groove is away from the protruding section in the water pipe, and the rubber ring tightly fits the groove.

[0009] The relationship requirements among the check pressure rod, the cylindrical section of the check pressure rod, the inner and outer diameters of the rubber ring and the radius of the circle enclosed by the protruding section in the water pipe ensure the normal operation of the check unit. When the filter unit of the single filter is disassembled and cleaned, the spring remains unaffected by the pressure of the filter unit, and the positions of the check pressure rod, rubber ring and nut are fixed so that the check pressure rod presses the rubber ring, and the rubber ring cooperates with the protruding section in the water pipe to block the water pipe, so that the liquid cannot flow through the water pipe.

[0010] Furthermore, a polygonal protruding column is provided at the upper end of the cylindrical section of the non-return pressure rod, and the outer diameter of the polygonal protruding column is smaller than the outer diameter of the cylindrical section of the non-return pressure rod.

[0011] The upper end of the cylindrical section of the non-return pressure rod is provided with a polygonal protruding column, which can make it more convenient to disassemble and assemble the nut and the non-return pressure rod.

[0012] Furthermore, the filter unit includes a gasket, a transparent observation piece, a metal filter and a filter fixing piece, the gasket is located between the water pipe and the end face produced by the reduction of the inner diameter of the connecting nut, the inner diameter of the gasket is larger than the outer diameter of the nut, one end of the transparent observation piece is connected to the nut, and the other end of the transparent observation piece is located between one end of the external threaded section of the connecting nut and the filter fixing piece, the filter fixing piece is located between one end of the transparent observation piece and the end face produced by the reduction of the inner diameter of the water outlet joint, the filter fixing piece is a circular ring, the inner wall surface of the filter fixing piece is provided with a groove, the metal filter is inserted into the transparent observation piece, and one end of the metal filter is stuck in the groove on the inner wall surface of the filter fixing piece, and the outer diameter of the metal filter is equal to the inner diameter of the filter fixing piece.

[0013] The washer can relieve the pressure between the water pipe and the connecting nut, and can also improve the sealing. The filter fixing piece can fix the position of the metal filter. One end of the transparent observation piece is connected to the nut. When the single filter is installed, the nut can be lifted to open the water pipe. The transparent observation piece makes it easy to observe whether the surface of the metal filter needs to be cleaned.

[0014] Furthermore, a handle is provided on the outer wall of the water inlet joint.

[0015] The handle makes it easy to hold and install the single filter.

[0016] Furthermore, the end face of one end of the cylindrical section of the non-return pressure rod does not coincide with the end face of the water inlet connector inserted into the water pipe.

[0017] Furthermore, after the single-way filter is completely installed in place, the end surface of one end of the rubber ring does not overlap with the end surface of one end of the protruding section in the water pipe.

[0018] After the single-way filter is installed as a whole, the end face of the cylindrical section of the non-return pressure rod does not coincide with the end face of the water inlet joint inserted into the water pipe, and the end face of the rubber ring does not coincide with the end face of the protruding section in the water pipe. Together, the two ensure the flow of the water pipe, allowing liquid to flow in from the water inlet joint, pass through the water pipe, the non-return unit and the filter unit, and then flow out through the water outlet joint.

[0019] Furthermore, when the filter unit is disassembled and cleaned, the end surface of one end of the rubber ring coincides with the end surface of one end of the protruding section in the water pipe.

[0020] When the filter unit is disassembled and cleaned, the spring remains free from the pressure of the filter unit, so that one end face of the rubber ring coincides with one end face of the protruding section in the water pipe, blocking the water pipe and preventing liquid from flowing out.

[0021] Compared with the prior art, the beneficial effect achieved by the present invention is that after the installation of the present invention is completed, the transparent observation piece will lift up the nut, and the nut and one end of the non-return pressure rod will be threadedly connected, and the non-return pressure rod will be lifted up, so that the rubber ring on the non-return pressure rod and the protruding section in the water pipe will be separated, causing the entire one-way filter to circulate, and the liquid will flow in from the water inlet joint, pass through the water pipe, the non-return unit, and then flow out from the water outlet joint after being filtered by the metal filter. When the filter unit is disassembled and cleaned, the spring return is not affected by the pressure of the filter unit, and the spring rebounds to bring the non-return pressure rod back, and the non-return pressure rod presses the rubber ring, so that the rubber ring and the protruding section in the water pipe fit tightly, blocking the water pipe and preventing the liquid from flowing out. The overall structure is easy to disassemble and assemble, and it is convenient to clean the filter unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0024] Figure 2 This is a schematic diagram of a half-section structure of the utility model after it is installed in place;

[0025] Figure 3 This is a structural diagram of the non-return unit of the utility model;

[0026] Figure 4 This is a schematic diagram of the filter unit structure of the utility model;

[0027] Figure 5 This is a schematic diagram of the half-section structure of the utility model after the filter unit is disassembled;

[0028] In the figure: 1-water inlet joint, 2-water flow pipe, 3-check unit, 4-filter unit, 5-connecting nut, 6-water outlet joint, 11-handle, 31-spring, 32-check pressure rod, 33-rubber ring, 34-nut, 41-washer, 42-transparent observation piece, 43-metal filter, 44-filter fixing piece, 321-polygonal protruding column. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] This utility model provides the following technical solutions:

[0031] like Figures 1 to 4 As shown, the one-way filter includes a water inlet joint 1, a water pipe 2, a check unit 3, a filter unit 4, a connecting nut 5 and a water outlet joint 6. The water inlet joint 1 and the water pipe 2 are connected in socket, the outlet end of the water inlet joint 1 is inserted into the water pipe 2, the outlet end of the water pipe 2 is provided with an external thread section, the inside of the water pipe 2 is provided with a protruding section, the protruding section in the water pipe 2 is adjacent to the end of the external thread section away from the water outlet of the water pipe 2, one end of the connecting nut 5 is provided with an internal thread section, the inner diameter of the connecting nut 5 becomes smaller below the internal thread section, and the other end of the connecting nut 5 is provided with an external thread The water pipe 2 and the internal threaded section of the connecting nut 5 are threadedly connected, one end of the water outlet joint 6 is provided with an internal threaded section, the inner diameter of the water outlet joint 6 becomes smaller below the internal threaded section, the water outlet joint 6 and the external threaded section of the connecting nut 5 are threadedly connected, the non-return unit 3 is located inside the water pipe 2, one end of the non-return unit 3 is located between the water inlet joint 1 and the protruding section in the water pipe 2, the other end of the non-return unit 3 is connected to one end of the filter unit 4, the other end of the filter unit 4 is connected to the end face formed by the reduction of the inner diameter of the water outlet joint 6, and the filter unit 4 is located inside the connecting nut 5 and the water outlet joint 6.

[0032] When the single-way filter is installed, the filter unit 4 pushes the check unit 3 open, allowing the entire single-way filter to flow. The water inlet joint 1 is connected to the water inlet pipe, and water is introduced into the water flow pipe 2. The water flows through the check unit 3 to the filter unit 4 for filtration, and then flows out through the water outlet joint 6.

[0033] like Figure 3 As shown, the non-return unit 3 includes a spring 31, a non-return pressure rod 32, a rubber ring 33 and a nut 34, one end of the spring 31 is connected to the nut 34, and the other end of the spring 31 is connected to the protruding section in the water pipe 2, the outer diameter of the non-return pressure rod 32 is smaller than the radius of the circle surrounded by the protruding section in the water pipe 2, one end of the non-return pressure rod 32 is provided with an external thread section, and the other end of the non-return pressure rod 32 is provided with a cylindrical section, the radius of the cylindrical section at one end of the non-return pressure rod 32 is smaller than the inner diameter of the water pipe 2, and larger than the radius of the circle surrounded by the protruding section in the water pipe 2, The cylindrical section of the check pressure rod 32 is located between the water inlet joint 1 and the protruding section in the water flow pipe 2. One end of the external threaded section of the check pressure rod 32 is threadedly connected to the nut 34. The closed end of the nut 34 is connected to the filter unit 4. A groove is provided on the side of the check pressure rod 32. The groove is located between the cylindrical section of the check pressure rod 32 and the protruding section in the water flow pipe 2. One end face of the groove is one end face of the cylindrical section of the check pressure rod 32, and the other end face of the groove is away from the protruding section in the water flow pipe 2. The rubber ring 33 tightly fits the groove.

[0034] The relationship requirements among the inner and outer diameters of the check pressure rod 32, the cylindrical section of the check pressure rod 32, the rubber ring 33 and the radius of the circle enclosed by the protruding section in the water pipe 2 ensure the normal operation of the check unit 3. When the single filter is disassembled and the filter unit 4 is cleaned, the spring 31 remains unaffected by the pressure of the filter unit 4, and the positions of the check pressure rod 32, the rubber ring 33 and the nut 34 are fixed, so that the check pressure rod 32 presses the rubber ring 33, and the rubber ring 33 cooperates with the protruding section in the water pipe 2 to block the water pipe 2, so that the liquid cannot flow through the water pipe 2.

[0035] like Figure 3 As shown, a polygonal protruding column 321 is provided at the upper end of the cylindrical section of the non-return pressure rod 32 , and the outer diameter of the polygonal protruding column 321 is smaller than the outer diameter of the cylindrical section of the non-return pressure rod 32 .

[0036] The upper end of the cylindrical section of the non-return pressure rod 32 is provided with a polygonal protruding column 321 to facilitate the disassembly and assembly of the nut 34 and the non-return pressure rod 32 .

[0037] like Figure 4 As shown, the filter unit 4 includes a gasket 41, a transparent observation piece 42, a metal filter 43 and a filter fixing piece 44, the gasket 41 is located between the water pipe 2 and the end face where the inner diameter of the connecting nut 5 is reduced, the inner diameter of the gasket 41 is larger than the outer diameter of the nut 34, one end of the transparent observation piece 42 is connected to the nut 34, the other end of the transparent observation piece 42 is located between one end of the external thread section of the connecting nut 5 and the filter fixing piece 44, the filter fixing piece 44 is located between one end of the transparent observation piece 42 and the end face where the inner diameter of the water outlet joint 6 is reduced, the filter fixing piece 44 is a circular ring, the inner wall surface of the filter fixing piece 44 is provided with a groove, the metal filter 43 penetrates the transparent observation piece 42, and one end of the metal filter 43 is stuck in the groove on the inner wall surface of the filter fixing piece 44, and the outer diameter of the metal filter 43 is equal to the inner diameter of the filter fixing piece 44.

[0038] The washer 41 can relieve the pressure between the water pipe 2 and the connecting nut 5, and can also improve the sealing. The filter fixing part 44 can fix the position of the metal filter 43. One end of the transparent observation part 42 is connected to the nut 34. When the single filter is installed, the nut 34 can be lifted to open the water pipe 2. The transparent observation part 42 makes it easy to observe whether the surface of the metal filter 43 needs to be cleaned.

[0039] like Figure 1 As shown, a handle 11 is provided on the outer wall of the water inlet connector 1 .

[0040] The handle 11 can be used to facilitate gripping and installing the single-item filter.

[0041] like Figure 2As shown, the end surface of one end of the cylindrical section of the non-return pressure rod 32 does not coincide with the end surface of the water inlet connector 1 inserted into the water pipe 2 .

[0042] After the single-way filter is completely installed, the end surface of one end of the rubber ring 33 does not overlap with the end surface of one end of the protruding section in the water pipe 2.

[0043] After the single-way filter is installed as a whole, the end face of the cylindrical section of the non-return pressure rod 32 does not overlap with the end face of the water inlet joint 1 inserted into the water pipe 2, and the end face of the rubber ring 33 does not overlap with the end face of the protruding section in the water pipe 2. Together, the two ensure the circulation of the water pipe 2, so that the liquid can flow in from the water inlet joint 1, pass through the water pipe 2, the non-return unit 3 and the filter unit 4, and then flow out through the water outlet joint 6.

[0044] like Figure 5 As shown, one end surface of the rubber ring 33 coincides with one end surface of the protruding section in the water pipe 2 when the filter unit 4 is disassembled and cleaned.

[0045] When the filter unit 4 is disassembled and cleaned, the spring 31 remains free from the pressure of the filter unit 4, so that one end surface of the rubber ring 33 coincides with one end surface of the protruding section in the water pipe 2, blocking the water pipe 2 and preventing the liquid from flowing out.

[0046] The working principle of the present invention: After the installation of the present invention is completed, the transparent observation part 42 will lift the nut 34, and the nut 34 and one end of the non-return pressure rod 32 will be threadedly connected, and the non-return pressure rod 32 will be lifted up, so that the rubber ring 33 on the non-return pressure rod 32 and the protruding section in the water pipe 2 are separated, causing the entire one-way filter to circulate, and the liquid flows in from the water inlet joint 1, passes through the water pipe 2, the non-return unit 3, and then flows out from the water outlet joint 6 after being filtered by the metal filter mesh 43. When the filter unit 4 is disassembled and cleaned, the spring 31 returns to a state not subject to pressure from the filter unit 4, and the spring 31 rebounds to bring the non-return pressure rod 32 back, and the non-return pressure rod 32 presses the rubber ring 33, so that the rubber ring 33 and the protruding section in the water pipe 2 fit tightly, blocking the water pipe 2 and preventing the liquid from flowing out. The overall structure is easy to disassemble and assemble, and it is convenient to clean the filter unit 4.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A one-way filter that is easy to disassemble quickly, characterized by: The one-way filter comprises a water inlet joint (1), a water pipe (2), a check unit (3), a filter unit (4), a connecting nut (5) and a water outlet joint (6); the water inlet joint (1) and the water pipe (2) are connected by a socket; the outlet end of the water inlet joint (1) is inserted into the water pipe (2); the outlet end of the water pipe (2) is provided with an external thread section; a protruding section is provided inside the water pipe (2); the protruding section inside the water pipe (2) is adjacent to the end of the external thread section away from the water outlet of the water pipe (2); one end of the connecting nut (5) is provided with an internal thread section; the inner diameter of the connecting nut (5) becomes smaller below the internal thread section; the other end of the connecting nut (5) is provided with an external thread section. The water pipe (2) and the internal thread section of the connecting nut (5) are threadedly connected. One end of the water outlet joint (6) is provided with an internal thread section. The inner diameter of the water outlet joint (6) decreases below the internal thread section. The water outlet joint (6) and the external thread section of the connecting nut (5) are threadedly connected. The check unit (3) is located inside the water pipe (2). One end of the check unit (3) is located between the water inlet joint (1) and the protruding section inside the water pipe (2). The other end of the check unit (3) is connected to one end of the filter unit (4). The other end of the filter unit (4) is connected to the end face formed by the reduced inner diameter of the water outlet joint (6). The filter unit (4) is located inside the connecting nut (5) and the water outlet joint (6).

2. The one-way filter that is easy to disassemble quickly according to claim 1, characterized in that: The non-return unit (3) comprises a spring (31), a non-return pressure rod (32), a rubber ring (33) and a nut (34). One end of the spring (31) is connected to the nut (34), and the other end of the spring (31) is connected to the protruding section in the water pipe (2). One end of the non-return pressure rod (32) is provided with an external thread section, and the other end of the non-return pressure rod (32) is provided with a cylindrical section. The radius of the cylindrical section at one end of the non-return pressure rod (32) is smaller than the inner diameter of the water pipe (2) and larger than the radius of the circle surrounded by the protruding section in the water pipe (2). The cylindrical section of the non-return pressure rod (32) is located at Between the water inlet joint (1) and the protruding section in the water pipe (2), one end of the external threaded section of the non-return pressure rod (32) is threadedly connected to the nut (34), and the closed end of the nut (34) is connected to the filter unit (4). A groove is provided on the side of the non-return pressure rod (32), and the groove is located between the cylindrical section of the non-return pressure rod (32) and the protruding section in the water pipe (2). One end face of the groove is one end face of the cylindrical section of the non-return pressure rod (32), and the other end face of the groove is away from the protruding section in the water pipe (2). The rubber ring (33) is tightly fitted into the groove.

3. The one-way filter that is easy to disassemble quickly according to claim 2, characterized in that: A polygonal protruding column (321) is provided at the upper end of the cylindrical section of the non-return pressure rod (32), and the outer diameter of the polygonal protruding column (321) is smaller than the outer diameter of the cylindrical section of the non-return pressure rod (32).

4. The one-way filter that is easy to disassemble quickly according to claim 3, characterized in that: The filter unit (4) comprises a washer (41), a transparent observation piece (42), a metal filter screen (43) and a filter screen fixing piece (44). The washer (41) is located between the water pipe (2) and the end face formed by the reduced inner diameter of the connecting nut (5). The inner diameter of the washer (41) is larger than the outer diameter of the nut (34). One end of the transparent observation piece (42) is connected to the nut (34). The other end of the transparent observation piece (42) is located between one end of the external thread section of the connecting nut (5) and the filter screen fixing piece. The filter fixing member (44) is located between one end of the transparent observation member (42) and the end face of the water outlet joint (6) where the inner diameter is reduced. The filter fixing member (44) is a circular ring. The inner wall of the filter fixing member (44) is provided with a groove. The metal filter (43) penetrates the transparent observation member (42). One end of the metal filter (43) is stuck in the groove of the inner wall of the filter fixing member (44). The outer diameter of the metal filter (43) is equal to the inner diameter of the filter fixing member (44).

5. The one-way filter that is easy to disassemble quickly according to claim 4, characterized in that: A handle (11) is provided on the outer wall surface of the water inlet joint (1).

6. The one-way filter that is easy to disassemble quickly according to claim 5, characterized in that: After the single-way filter is installed as a whole, the end surface of one end of the rubber ring (33) does not overlap with the end surface of one end of the protruding section in the water pipe (2).

7. The one-way filter that is easy to disassemble quickly according to claim 6, characterized in that: The end face of one end of the cylindrical section of the non-return pressure rod (32) does not overlap with the end face of one end of the water inlet joint (1) inserted into the water pipe (2).

8. The one-way filter that is easy to disassemble quickly according to claim 7, characterized in that: When the filter unit (4) is disassembled and cleaned, one end surface of the rubber ring (33) coincides with one end surface of the protruding section in the water pipe (2).

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