Filter with replaceable filter element

Abstract

The utility model discloses a filter with a replaceable filter element, which comprises a base, a water outlet channel, an annular inner cavity and an annular outer cavity surrounding the outer side of the annular inner cavity are arranged in the base, and the water inlet end of the water outlet channel is communicated with the annular inner cavity; the end cover covers the bottom of the base and is provided with a water inlet channel; the lower end of the shell is open, and the shell is detachably connected with the base in a screwing mode; the support is inserted into the shell, the lower end of the support downwards extends out of the shell to form a connector part, the connector part is provided with a water purification channel, and the connector part is inserted into the annular inner cavity; the filter element is sleeved on the bracket and is inserted into the shell; the rotating rod is vertically arranged in the base, and the upper end of the rotating rod is connected with the support in an inserted mode. The fixed diaphragm is sleeved on the rotating rod and is provided with a water passing hole I; the movable diaphragm is overlapped with the fixed diaphragm and is provided with a water passing hole II; the second water passing hole is aligned with the first water passing hole in the using process so that the water inlet channel can communicate with the annular outer cavity, and the shell is rotated to be disconnected from the base. The shell drives the support, the rotating rod and the movable membrane to rotate together until the second water passing hole and the first water passing hole are staggered so as to cut off the water inlet channel. The water purifier has the advantage that the filter element is easy and convenient to replace.

Description

Technical Field

[0001] The utility model relates to a filter, in particular to a filter with a replaceable filter element. Background Art

[0002] The filter element needs to be replaced regularly. To do this, you must first shut off the water flow, open the filter housing, and replace the old element. After that, reinstall the housing and reopen the water flow. The water flow is typically controlled by the main valve in the house, though a check valve can also be added to the front of the filter. However, whether the main valve or a check valve is used, the water shutoff operation for replacing the filter element requires a separate water shutoff. This requires multiple steps and is not very convenient. Utility Model Content

[0003] The utility model provides a filter with a replaceable filter element, which is easy to replace and overcomes the shortcomings of the background technology. The technical solution adopted by the utility model to solve the technical problem is:

[0004] The filter with a replaceable filter element comprises a base, which is provided with a water outlet channel, an annular inner cavity and an annular outer cavity surrounding the outer side of the annular inner cavity, the water inlet end of the water outlet channel is connected to the annular inner cavity; an end cover, which covers the bottom of the base and is provided with a water inlet channel; an outer shell, which is open at the lower end and is detachably connected to the base by a screw connection; a bracket, which is inserted into the outer shell, and the lower end of which extends downward from the outer shell to form a joint part, the joint part is provided with a clean water channel, and the joint part is inserted into the annular inner cavity; a filter element is sleeved on the bracket and inserted into the outer shell; a rotating rod is vertically arranged at the In the base, the upper end is plugged into the bracket; the fixed diaphragm is sleeved on the rotating rod and is provided with a water hole 1; the movable diaphragm is stacked with the fixed diaphragm and is provided with a water hole 2, and the annular outer cavity and the water inlet channel are respectively located on the upper and lower sides of the stacked fixed diaphragm and the movable diaphragm; the water hole 2 is aligned with the water hole 1 when in use to achieve communication between the water inlet channel and the annular outer cavity. During the process of rotating the shell to release the connection with the base, the shell drives the bracket, the rotating rod and the movable diaphragm to rotate together until the water hole 2 is staggered with the water hole 1 to cut off the water inlet channel.

[0005] In a preferred embodiment: a partition is provided in the base to divide the internal space of the base into an upper space and a lower space, the annular inner cavity and the annular outer cavity are provided in the upper space, the fixed diaphragm and the movable diaphragm are provided in the lower space, and a through hole is provided on the partition.

[0006] In a preferred embodiment, the through hole is ring-shaped.

[0007] In a preferred embodiment, it further includes a spring, the lower end of the spring abuts against the end cover, and the upper end abuts against the moving diaphragm or the fixed diaphragm.

[0008] In a preferred embodiment, the moving diaphragm is stacked below the fixed diaphragm, and the lower end of the rotating rod is inserted into the moving diaphragm.

[0009] In a preferred embodiment, a positioning boss is provided at the middle position of the bottom of the moving diaphragm, an annular enclosure is provided inside the end cover, the positioning boss sinks into the annular enclosure, and the spring sleeved on the annular enclosure.

[0010] In a preferred embodiment, a slot is provided at the lower end of the bracket, and the upper part of the rotating rod is inserted into the slot.

[0011] In a preferred embodiment, there are two first water passing holes, which are symmetrically arranged; there are two second water passing holes, which are symmetrically arranged.

[0012] In a preferred embodiment, a handle is provided at the upper end of the housing.

[0013] In a preferred embodiment, the water outlet channel is horizontally arranged.

[0014] Compared with the background art, the technical solution has the following advantages:

[0015] 1. When replacing the filter element, the operator rotates the housing to loosen the housing from the base. While the housing rotates, it drives the bracket, the rotating rod, and the moving diaphragm to rotate together, so that the originally connected second water passing hole and the first water passing hole are misaligned, thus cutting off the water inlet channel at the same time. The operator can directly remove the housing, the filter element, and the bracket together. After replacing the new filter element, the housing is screwed back onto the base. During the screwing process of the housing, it drives the bracket, the rotating rod, and the moving diaphragm to rotate in the opposite direction, aligning the second water passing hole and the first water passing hole again, thereby opening the water inlet channel. Therefore, when replacing the filter element of the filter of the present utility model, tightening the housing can open the water inlet channel at the same time, and loosening the housing can cut off the water inlet channel at the same time, which has the advantage of simple filter element replacement.

[0016] 2. The fixed diaphragm and the moving diaphragm are restricted in the lower part space of the base, and the structure is stable. In particular, with the cooperation of the spring, the fixed diaphragm and the moving diaphragm can be more closely attached.

[0017] 3. A positioning boss is provided at the middle position of the bottom of the moving diaphragm, and the moving diaphragm rotates stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 The three-dimensional exploded view of the filter with replaceable filter element of the present utility model is shown.

[0020] Figure 2 illustrates Figure 1 the assembly schematic diagram of the housing, bracket and filter element of the replaceable filter element filter shown

[0021] Figure 3 illustrates Figure 1 another assembly schematic diagram of the housing, bracket and filter element of the replaceable filter element filter shown

[0022] Figure 4 illustrates Figure 1 the assembly schematic diagram of the base, end cap, rotating rod, fixed diaphragm, moving diaphragm and spring of the replaceable filter element filter shown

[0023] Figure 5 illustrates the schematic diagram of the moving diaphragm closing the water passing hole 1 of the fixed diaphragm

[0024] Figure 6 illustrates Figure 1 the three-dimensional schematic diagram of the replaceable filter element filter shown

[0025] Figure 7 illustrates Figure 6 the cross-sectional schematic diagram of the replaceable filter element filter shown

[0026] Figure 8 illustrates Figure 6 another cross-sectional schematic diagram of the replaceable filter element filter shown Detailed implementation mode

[0027] Please refer to Figures 1 to 8The filter with a replaceable filter element includes: a base 10, which is provided with a water outlet channel 12, an annular inner cavity 14 and an annular outer cavity 16 surrounding the outside of the annular inner cavity, and the water inlet end of the water outlet channel 12 is connected to the annular inner cavity 14; an end cover 20, which covers the bottom of the base 10 and is provided with a water inlet channel 22; a shell 30, which is open at the lower end and is detachably connected to the base 10 by a screw connection, that is, the shell can be fastened to the base by rotating in one direction, and the shell can be loosened by rotating in the opposite direction, such as by a threaded connection or a wedge-shaped block edge connection; a bracket 40, which is inserted into the shell 30, and the lower end of which extends downward from the shell A joint portion 42 is formed, which is provided with a clean water channel 44, and the joint portion 42 is inserted into the annular inner cavity 14; a filter element 50 is sleeved on the bracket 40 and inserted into the outer shell 30; a rotating rod 60 is vertically arranged in the base 10, and the upper end is plugged into the bracket 40; a fixed diaphragm 70 is sleeved on the rotating rod 60 and is provided with a water hole 1 72; a movable diaphragm 80 is stacked with the fixed diaphragm 70 and is provided with a water hole 2 82, the annular outer cavity 16 is located on the upper side of the stacked fixed diaphragm 70 and the movable diaphragm 80, and the water inlet channel 22 is located on the lower side of the stacked fixed diaphragm 70 and the movable diaphragm 80.

[0028] When in use, the second water hole 82 is aligned with the first water hole 72 to achieve communication between the water inlet channel 12 and the annular outer cavity 16. At this time, raw water enters from the water inlet channel 22, enters the annular outer cavity 16 through the second water hole 82 and the first water hole 72, and then enters the outer shell 30. After being filtered by the filter element 50, clean water is obtained. The clean water flows into the interior of the bracket 40, flows from the clean water channel 44 to the annular inner cavity 14, and finally flows out from the water outlet channel 12.

[0029] When the filter element 50 needs to be replaced, the outer shell 30 is rotated to release the connection with the base 10. During the rotation of the outer shell, the outer shell 30 can drive the bracket 40, the rotating rod 60, and the movable diaphragm 70 to rotate together (the outer shell and the bracket are circumferentially clamped, the bracket and the rotating rod are circumferentially clamped, and the rotating rod and the movable diaphragm are circumferentially clamped to achieve rotation together), so that the second water hole 82 and the first water hole 72 are staggered, so that the movable diaphragm 80 closes the water hole 72 of the fixed diaphragm, that is, the water inlet channel 22 is cut off. When the filter element 50 and the bracket 40 are removed together with the outer shell 30, there will be no water leakage on the base.

[0030] Preferably, a partition 18 is provided inside the base 10 to divide the internal space of the base into an upper part space and a lower part space. The annular inner cavity 14 and the annular outer cavity 16 are arranged in the upper part space, and the fixed diaphragm 70 and the moving diaphragm 80 are arranged in the lower part space. The rotating rod 60 passes through the partition and is inserted into the bracket 40. A through hole 182 is provided on the partition 18, and water enters the annular outer cavity 16 through the through hole. Further preferably, the through hole 182 is annular in shape.

[0031] Preferably, a spring 90 is further included. The lower end of the spring 90 abuts against the end cap 20, and the upper end abuts against the moving diaphragm or the fixed diaphragm, so that the moving diaphragm and the fixed diaphragm are pressed together and lean against the partition 18.

[0032] Preferably, the moving diaphragm 80 is stacked below the fixed diaphragm 70, and the lower end of the rotating rod 60 is inserted into the slot of the moving diaphragm 80.

[0033] Preferably, a positioning boss 84 is provided at the middle position of the bottom of the moving diaphragm 80. An annular enclosure 24 is provided inside the end cap 20. The positioning boss 84 sinks into the annular enclosure 24, and the spring sleeves the annular enclosure.

[0034] Preferably, a slot 46 is provided at the lower end of the bracket 40, and the upper part of the rotating rod 60 is inserted into the slot.

[0035] Preferably, there are two first water passing holes 72, which are symmetrically arranged; there are two second water passing holes 82, which are symmetrically arranged.

[0036] Preferably, a handle 32 is provided at the upper end of the housing 30 to facilitate the operator to rotate the housing.

[0037] Preferably, the water outlet channel 12 is arranged horizontally.

Claims

1. Filters with replaceable cartridges, including The base is provided with a water outlet channel, an annular inner cavity and an annular outer cavity surrounding the outer side of the annular inner cavity, and the water inlet end of the water outlet channel is connected to the annular inner cavity; An end cover, covering the bottom of the base, is provided with a water inlet channel; The housing has an open lower end and is detachably connected to the base by a screw connection; The bracket is inserted into the shell, and the lower end extends downward from the shell to form a joint portion, the joint portion is provided with a water purification channel, and the joint portion is inserted into the annular inner cavity; A filter element is sleeved on the bracket and inserted into the housing; Its characteristics are: Also includes A rotating rod is vertically arranged in the base, and an upper end thereof is plugged into the bracket; A fixed diaphragm is sleeved on the rotating rod and is provided with a water hole 1; The movable diaphragm is stacked together with the fixed diaphragm and is provided with two water holes. The annular outer cavity and the water inlet channel are respectively located on the upper side and the lower side of the stacked fixed diaphragm and the movable diaphragm; When in use, the second water hole is aligned with the first water hole to achieve communication between the water inlet channel and the annular outer cavity. During the process of rotating the outer shell to release the connection with the base, the outer shell drives the bracket, the rotating rod, and the movable diaphragm to rotate together until the second water hole is offset from the first water hole to cut off the water inlet channel.

2. The filter with a replaceable filter element according to claim 1, characterized in that: A partition is provided in the base to divide the internal space of the base into an upper space and a lower space. The annular inner cavity and the annular outer cavity are provided in the upper space, and the fixed diaphragm and the movable diaphragm are provided in the lower space. A through hole is provided on the partition.

3. The filter with a replaceable filter element according to claim 2, characterized in that: The through hole is ring-shaped.

4. The filter with a replaceable filter element according to claim 1 or 2, characterized in that: It also includes a spring, wherein the lower end of the spring presses on the end cover, and the upper end presses on the movable diaphragm or the fixed diaphragm.

5. The filter with a replaceable filter element according to claim 4, characterized in that: The movable diaphragm is stacked below the fixed diaphragm, and the lower end of the rotating rod is inserted into the movable diaphragm slot.

6. The filter with a replaceable filter element according to claim 5, characterized in that: A positioning boss is provided at the middle position of the bottom of the movable diaphragm, an annular enclosure is provided in the end cover, the positioning boss is sunk into the annular enclosure, and the spring covers the annular enclosure.

7. The filter with replaceable filter element according to claim 6, characterized in that: A slot is provided at the lower end of the bracket, and the upper part of the rotating rod is inserted into the slot.

8. The filter with a replaceable filter element according to claim 3, wherein: There are two first water holes, which are symmetrically arranged; there are two second water holes, which are symmetrically arranged.

9. The filter with a replaceable filter element according to claim 1, characterized in that: A handle is provided at the upper end of the shell.

10. The filter with a replaceable filter element according to claim 1, characterized in that: The water outlet channel is arranged horizontally.

Images