Inlet water filter convenient for mounting of multiple filtering elements

Abstract

The utility model relates to a water inlet filter convenient for mounting a plurality of filtering elements, which comprises a filter end cover, one end of the filter end cover can be connected with an external water inlet joint, a first mounting channel is arranged in the filter end cover, and a filter water outlet joint is arranged at the other end of the filter end cover. A second mounting channel and a first water outlet channel are arranged in the filter water outlet connector, the diameter of the second mounting channel is larger than that of the first water outlet channel, and filtering elements can be mounted in the first mounting channel and the second mounting channel; according to the filter end cover, a user can install different filter elements or one-way valve elements in the first installation channel, the second installation channel and the second installation channel, so that the filter end cover has a filtering function or an anti-backflow function, the overall structure is smaller, and the filter end cover is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a water inlet filter which is convenient for installing multiple filter elements. Background Art

[0002] With the development of the economy and the continuous improvement of people's living standards, the requirements for humanized design of washing machines are getting higher and higher. People's requirements for washing machines are no longer limited to washing clothes. The water used by many consumers for washing clothes contains various impurities. Therefore, it is necessary to connect a filter in series on the water inlet pipe of the washing machine to isolate impurities and prevent the water inlet valve of the washing machine from being blocked, resulting in slow water inflow and impurities entering the washing machine.

[0003] The application announcement number is CN104775286A, which discloses a filter device for a washing machine and a washing machine having the same. Combined with its specification and drawings, the filter device includes a shell and a filter screen, and the shell has a filter cavity. However, with this structure, the filter cavity inside the shell can only allow the installation of one filter screen, and other filter elements cannot be installed inside the water inlet quick connector. If you want to reduce the volume of the entire filter, directly install one end of the water inlet quick connector on the water inlet connector and the other end on the water inlet end of the washing machine. Such a structure cannot achieve the filtering function, so this design structure has certain limitations. Summary of the Invention

[0004] The utility model mainly addresses the problems existing in the use of filters and invents a water inlet filter that is easy to install multiple filter elements. Users can install different filter elements or one-way valve elements inside the first installation channel, the second installation channel and the second installation channel according to their own needs, so that the filter end cover has a filtering function or an anti-backflow function, the overall structure is smaller, and it is more convenient to use; the double filter elements can improve the filtering effect.

[0005] The invention objective of the utility model is achieved through the following technical solutions: a water inlet filter that is convenient for installing multiple filter elements, comprising a filter end cover, one end of the filter end cover can be connected to an external water inlet joint, a first installation channel is provided inside the filter end cover, a filter outlet joint is provided at the other end of the filter end cover, a second installation channel and a first water outlet channel are provided inside the filter outlet joint, the diameter of the second installation channel is larger than the diameter of the first water outlet channel, and the filter elements can be installed inside the first installation channel and the second installation channel.

[0006] Preferably, one end of the filter end cover is provided with a threaded inner groove, which can be connected to the end of the filter housing or the water inlet joint. The inside of the filter end cover is provided with a joint limiting groove, and the outside of the filter water outlet joint is provided with a joint boss, which fits into the inside of the joint limiting groove.

[0007] Preferably, the filter element includes a first columnar filter screen and a first spherical filter screen, the outside of the first columnar filter screen is provided with a first columnar boss, the first columnar boss fits in the second installation channel, and the edge of the first spherical filter screen is provided with a first annular boss, the first annular boss fits on the surface of the joint boss.

[0008] Preferably, the filter element includes a second columnar filter screen and a first annular filter screen, a second columnar boss is provided on the outside of the second columnar filter screen, the second columnar boss is fitted in the second installation channel, and a third columnar boss is provided on the surface of the first annular filter screen, the two ends of the third columnar boss are connected to the second annular boss, and the second annular boss is fitted to the surface of the joint boss.

[0009] Preferably, the filter element includes a third columnar filter screen and a second annular filter screen, the outside of the third columnar filter screen is provided with a fourth columnar boss, the fourth columnar boss fits in the second installation channel, and the second annular filter screen fits on the surface of the joint boss.

[0010] Preferably, the filter element includes a fourth columnar filter screen and a second spherical filter screen, the outside of the fourth columnar filter screen is provided with a fifth columnar boss, the fifth columnar boss fits in the second mounting channel, and the edge of the second spherical filter screen is provided with a third annular boss, the third annular boss fits on the surface of the joint boss.

[0011] A water inlet filter that is convenient for installing multiple filter elements includes a filter end cover, a water channel connector is inserted into one end of the filter end cover, one end of the water channel connector is connected to a universal connector, a third installation channel is provided inside the filter end cover, and a filter outlet connector is provided at the other end of the filter end cover, and the filter element and a one-way valve element can be installed inside the third installation channel.

[0012] Preferably, the one-way valve element includes a one-way valve body with a second water outlet channel arranged inside, a valve body column is arranged inside the one-way valve body, a water baffle is slidably connected to the valve body column, and the outer diameter of the water baffle is larger than the second water outlet channel.

[0013] Preferably, the filter element is a third spherical filter screen, the edge of the third spherical filter screen is provided with a fourth annular boss, the fourth annular boss is attached to the surface of the joint boss, and a sheet boss is further provided inside the fourth annular boss.

[0014] Preferably, the filter element is a fifth columnar filter screen, the outside of the fifth columnar filter screen is provided with a sixth columnar boss, the sixth columnar boss is fitted in the third installation channel, the inside of the fifth columnar filter screen is provided with a sixth columnar filter screen, the bottom of the sixth columnar filter screen is provided with a fifth annular boss, the fifth annular boss is fitted to the inner bottom of the third installation channel

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. If you want to reduce the volume of the entire filter, directly install one end of the filter end cover on the water inlet joint. The user can install different filter elements or one-way valve elements inside the first installation channel, the second installation channel and the second installation channel, so that the filter end cover has a filtering function or an anti-backflow function, the overall structure is smaller, and it is more convenient to use; 2. The double filter elements can improve the filtering effect, and the filter elements installed inside the filter end cover are smaller in size and have lower manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of a filter end cap according to a first embodiment of the present invention;

[0017] Figure 2 A perspective view of a filter end cap according to a second embodiment of the present invention;

[0018] Figure 3 A cross-sectional view of a filter end cap according to a first embodiment of the present invention;

[0019] Figure 4 A cross-sectional view of an internally installed filter element according to a second embodiment of the present invention;

[0020] Figure 5 This is a cross-sectional view of an internally installed filter element according to the first embodiment of the present invention;

[0021] Figure 6 This is a cross-sectional view of an internally installed filter element according to the first embodiment of the present invention;

[0022] Figure 7 This is a cross-sectional view of an internally installed filter element according to the first embodiment of the present invention;

[0023] Figure 8 This is a cross-sectional view of a filter element of the present invention;

[0024] Figure 9A cross-sectional view of an internally mounted one-way valve element according to a third embodiment of the present invention;

[0025] Figure 10 A cross-sectional view of a third embodiment of the present invention showing an internally mounted one-way valve element and a filter element;

[0026] Figure 11 A perspective view of a third embodiment of the present invention;

[0027] Figure 12 This is a cross-sectional view of a fourth embodiment of the present invention with a filter element installed internally;

[0028] Figure 13 This is a perspective view of the fourth embodiment of the present invention.

[0029] Markings in the figure: 1. Filter end cap; 11. First installation channel; 12. Threaded inner groove; 13. Joint limiting groove; 14. Waterway joint; 15. Universal joint; 151. Universal joint body; 152. Limit screw; 153. Sealing gasket; 2. Filter outlet joint; 21. Second installation channel; 22. First water outlet channel; 23. Joint boss; 31. First columnar filter screen; 32. First spherical filter screen; 311. First columnar boss; 321. First annular boss; 41. Second columnar filter screen; 42. First annular filter screen; 411. Second columnar boss; 421. The third columnar boss; 422, the second annular boss; 51, the third columnar filter; 52, the second annular filter; 511, the fourth columnar boss; 61, the fourth columnar filter; 62, the second spherical filter; 611, the fifth columnar boss; 621, the third annular boss; 71, the second water outlet channel; 72, the one-way valve body; 73, the valve body column; 74, the water baffle; 81, the third spherical filter; 811, the fourth annular boss; 812, the sheet boss; 91, the fifth columnar filter; 92, the sixth columnar filter; 911, the sixth columnar boss; 921, the fifth annular boss. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0031] like Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7As shown, the first embodiment of the filter end cap of the utility model is a water inlet filter that is convenient for installing multiple filter elements, including a filter end cap 1, characterized in that one end of the filter end cap 1 can be connected to an external water inlet joint, the interior of the filter end cap 1 is provided with a first installation channel 11, the other end of the filter end cap 1 is provided with a filter outlet joint 2, the interior of the filter outlet joint 2 is provided with a second installation channel 21 and a first water outlet channel 22, the diameter of the second installation channel 21 is larger than the diameter of the first water outlet channel 22, the interiors of the first installation channel 11 and the second installation channel 21 can be installed with filter elements, One end of the filter end cover 1 is provided with a threaded inner groove 12, and the threaded inner groove 12 can be connected to the end of the filter housing or the water inlet joint. The interior of the filter end cover 1 is provided with a joint limiting groove 13, and the outside of the filter outlet joint 2 is provided with a joint boss 23. After the filter outlet joint 2 is inserted into the interior of the filter end cover 1, the joint boss 23 fits into the interior of the joint limiting groove 13. After this arrangement, different filter elements can be installed in the second installation channel 21 and the first water outlet channel 22 to achieve the filtering function, and the double filter element can improve the filtering effect, so that the filter end cover 1 can be directly connected to the water outlet to achieve filtering.

[0032] In this embodiment, the installed filter elements may be a second cylindrical filter screen 41 and a first annular filter screen 42. The second cylindrical filter screen 41 is provided with a second cylindrical boss 411 on its exterior, and the second cylindrical boss 411 fits in the second installation channel 21. The surface of the first annular filter screen 42 is provided with a third cylindrical boss 421, and both ends of the third cylindrical boss 421 are connected to second annular bosses 422, and the second annular boss 422 fits in the surface of the joint boss 23.

[0033] The installed filter elements may be a third cylindrical filter screen 51 and a second annular filter screen 52. The third cylindrical filter screen 51 is provided with a fourth cylindrical boss 511 on its exterior. The fourth cylindrical boss 511 fits within the second installation channel 21. The second annular filter screen 52 fits on the surface of the joint boss 23.

[0034] The installed filter elements may be a fourth cylindrical filter screen 61 and a second spherical filter screen 62. The fourth cylindrical filter screen 61 is provided with a fifth cylindrical boss 611 on its exterior, which fits into the second installation channel 21. The second spherical filter screen 62 is provided with a third annular boss 621 on its edge, which fits into the surface of the joint boss 23.

[0035] like Figure 2 and Figure 4As shown, the second embodiment of the present invention is different from the first embodiment in that the shape of the filter end cover is different, and its internal filter element can be installed with a first columnar filter screen 31 and a first spherical filter screen 32. The outside of the first columnar filter screen 31 is provided with a first columnar boss 311, and the first columnar boss 311 fits in the second installation channel 21. The edge of the first spherical filter screen 32 is provided with a first annular boss 321, and the first annular boss 321 fits on the surface of the joint boss 23.

[0036] like Figure 9 、 Figure 10 and Figure 11 As shown, in the third embodiment of the present utility model, a water channel connector 14 is plugged into one end of the filter end cover 1, and one end of the water channel connector 14 is connected to a universal connector 15. A third installation channel 16 is provided inside the filter end cover 1, and a filter outlet connector 2 is provided at the other end of the filter end cover 1. The one-way valve element includes a one-way valve body 72 with a second water outlet channel 71 provided therein, and a valve body cylinder 73 is provided inside the one-way valve body 72, and a water retaining member 73 is slidably connected to the valve body cylinder 73. Plate 74, the outer diameter of the water baffle 74 is larger than the second water outlet channel 71. After being set up in this way, when water flows normally from top to bottom, the water baffle 74 will slide downward under the impact of the water flow and the guidance of the valve body column 73. At this time, there is a gap between the water baffle 74 and the second water outlet channel 71. If water flows back upward from the first water outlet channel 22, the water baffle 74 will slide upward under the impact of the water flow and the guidance of the valve body column 73. At this time, there is no gap between the water baffle 74 and the second water outlet channel 71, thereby realizing the unidirectional conduction function.

[0037] The installed filter element can be the third spherical filter 81 or the second annular filter 52. The edge of the third spherical filter 81 is provided with a fourth annular boss 811, which is attached to the bottom surface of the third installation channel 16. The inner portion of the fourth annular boss 811 is further provided with a sheet-like boss 812.

[0038] like Figure 12 and Figure 13As shown, the fourth embodiment of the present utility model is different from the third embodiment in that the hook shape on the side of the water channel connector 14 is different. In this embodiment, the filter element installed inside can be a fifth columnar filter 91, and the outside of the fifth columnar filter 91 is provided with a sixth columnar boss 911, and the sixth columnar boss 911 fits in the third installation channel 16. The inside of the fifth columnar filter 91 is provided with a sixth columnar filter 92, and the bottom of the sixth columnar filter 92 is provided with a fifth annular boss 921, and the fifth annular boss 921 fits in the inner bottom of the third installation channel 16. The universal joint 15 includes a universal joint body 151, a limit screw 152 and a sealing gasket 153. The top of the universal joint body 151 is threadedly connected with a plurality of limit screws 152. The sealing gasket 153 is clamped between the bottom of the universal joint body 151 and the top of the water joint 14. After this arrangement, the water inlet pipe without threads can be directly inserted into the interior of the universal joint body 151 and the limit screw 152 can be rotated to lock it. The fifth columnar filter screen 91 and the sixth columnar filter screen 92 are stacked together, and can also realize the function of dual filter element filtering.

[0039] Working principle and usage of this utility model:

[0040] The user can install filter elements or one-way valve elements of suitable size but different shapes inside the first installation channel 11, the second installation channel 21 and the third installation channel 16, so that the filter end cover 1 has a filtering function or an anti-backflow function, the overall structure is smaller, and it is more convenient to use.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A water inlet filter that is convenient for installing multiple filter elements, comprising a filter end cap (1), characterized in that: One end of the filter end cap (1) can be connected to an external water inlet connector, a first installation channel (11) is provided inside the filter end cap (1), a filter outlet connector (2) is provided at the other end of the filter end cap (1), a second installation channel (21) and a first outlet channel (22) are provided inside the filter outlet connector (2), the diameter of the second installation channel (21) is larger than the diameter of the first outlet channel (22), and filter elements can be installed inside the first installation channel (11) and the second installation channel (21).

2. The water inlet filter that is convenient for installing multiple filter elements according to claim 1, characterized in that: One end of the filter end cover (1) is provided with a threaded inner groove (12), and the threaded inner groove (12) can be connected to the end of the filter housing or the water inlet joint. The interior of the filter end cover (1) is provided with a joint limiting groove (13), and the exterior of the filter water outlet joint (2) is provided with a joint boss (23), and the joint boss (23) is fitted into the interior of the joint limiting groove (13).

3. The water inlet filter that is convenient for installing multiple filter elements according to claim 2, characterized in that: The filter element comprises a first columnar filter screen (31) and a first spherical filter screen (32); a first columnar boss (311) is provided on the outside of the first columnar filter screen (31); the first columnar boss (311) is fitted into the second installation channel (21); a first annular boss (321) is provided on the edge of the first spherical filter screen (32); the first annular boss (321) is fitted onto the surface of the joint boss (23).

4. The water inlet filter that is convenient for installing multiple filter elements according to claim 2, characterized in that: The filter element comprises a second columnar filter screen (41) and a first annular filter screen (42); a second columnar boss (411) is provided on the outside of the second columnar filter screen (41); the second columnar boss (411) is fitted in the second installation channel (21); a third columnar boss (421) is provided on the surface of the first annular filter screen (42); both ends of the third columnar boss (421) are connected to second annular bosses (422); the second annular boss (422) is fitted on the surface of the joint boss (23).

5. The water inlet filter that is convenient for installing multiple filter elements according to claim 2, characterized in that: The filter element comprises a third columnar filter screen (51) and a second annular filter screen (52); a fourth columnar boss (511) is provided on the outside of the third columnar filter screen (51); the fourth columnar boss (511) is fitted in the second installation channel (21); and the second annular filter screen (52) is fitted on the surface of the joint boss (23).

6. The water inlet filter that is convenient for installing multiple filter elements according to claim 2, characterized in that: The filter element comprises a fourth columnar filter screen (61) and a second spherical filter screen (62); a fifth columnar boss (611) is provided on the outside of the fourth columnar filter screen (61); the fifth columnar boss (611) is fitted in the second installation channel (21); a third annular boss (621) is provided on the edge of the second spherical filter screen (62); the third annular boss (621) is fitted on the surface of the joint boss (23).

7. A water inlet filter for facilitating installation of multiple filter elements, comprising a filter end cap (1), characterized in that: A water channel connector (14) is inserted into one end of the filter end cover (1), and a universal connector (15) is connected to one end of the water channel connector (14). A third installation channel (16) is provided inside the filter end cover (1), and a filter outlet connector (2) is provided at the other end of the filter end cover (1). A filter element and a one-way valve element can be installed inside the third installation channel (16).

8. The water inlet filter for facilitating installation of multiple filter elements according to claim 7, characterized in that: The one-way valve element comprises a one-way valve body (72) with a second water outlet channel (71) provided therein, a valve body column (73) provided therein, a water baffle (74) slidably connected to the valve body column (73), and an outer diameter of the water baffle (74) is larger than the second water outlet channel (71).

9. The water inlet filter for facilitating installation of multiple filter elements according to claim 8, characterized in that: The filter element is a third spherical filter screen (81), the edge of the third spherical filter screen (81) is provided with a fourth annular boss (811), the fourth annular boss (811) is attached to the surface of the joint boss (23), and a sheet-shaped boss (812) is further provided inside the fourth annular boss (811).

10. The water inlet filter for facilitating installation of multiple filter elements according to claim 8, characterized in that: The filter element is a fifth columnar filter screen (91), the outside of the fifth columnar filter screen (91) is provided with a sixth columnar boss (911), the sixth columnar boss (911) is fitted in the third installation channel (16), the inside of the fifth columnar filter screen (91) is provided with a sixth columnar filter screen (92), the bottom of the sixth columnar filter screen (92) is provided with a fifth annular boss (921), the fifth annular boss (921) is fitted in the inner bottom of the third installation channel (16).

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