CN211799187U - Back flush filter based on filter screen floats - Google Patents
Back flush filter based on filter screen floats Download PDFInfo
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- CN211799187U CN211799187U CN202020158650.XU CN202020158650U CN211799187U CN 211799187 U CN211799187 U CN 211799187U CN 202020158650 U CN202020158650 U CN 202020158650U CN 211799187 U CN211799187 U CN 211799187U
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Abstract
The utility model discloses a back flush filter based on filter screen floats, it includes: the novel valve comprises a basic barrel, a filter screen, a valve core and a plunger, wherein a cavity with a downward pointing opening is formed in the basic barrel, a valve sleeve is arranged at the top of the filter screen, a water inlet communicated with the cavity is formed in the top of the basic barrel, the valve core is arranged in the cavity, the top of the valve core is connected with the water inlet, the lower portion of the valve core extends into the valve sleeve, a blind hole is formed in the top of the valve core in an inwards concave mode, a first valve hole and a second valve hole are formed in the outer circle of the valve core at the upper portion and the lower portion, two sealing rings are arranged in the valve sleeve at the upper portion and the. Back flush filter based on filter screen floats, through the rotation of plunger, the switching of filtration mode and back flush mode is realized to the fluctuation of drive filter screen, and is easy and simple to handle, structural stability is high.
Description
Technical Field
The utility model relates to the technical field of filters, especially, relate to a back flush filter based on floating filter screen.
Background
The water filter is a device capable of filtering and purifying water flow, and along with the improvement of living standard of people, the requirement of people on drinking water safety is higher and higher, so that the water filter is widely used and has higher requirement on stability.
The core of the water filter is a filter screen, and impurities in water are easily attached to the inner wall of the filter screen in the using process, so that the filtering effect and efficiency are reduced, and the water filter needs to be replaced or maintained. In order to reduce the cost of use, the filter screen is usually cleaned and maintained when the impurities are excessive. In the prior art, the filter screen is mostly cleaned by designing a backwashing waterway, the backwashing waterway is usually switched by a complex structure, the manufacturing cost is high, the operation is complicated, and the stability cannot be ensured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a back flush filter based on filter screen floats carries out the swift switching of filtration mode and back flush mode, ensures the stability of using.
To achieve the purpose, the utility model adopts the following technical proposal:
a floating screen based backflush filter comprising: the filter comprises a basic barrel, a filter screen, a valve core and a plunger, wherein a cavity with a downward opening is arranged in the basic barrel, the filter screen is concentrically arranged in the cavity, one side of the basic barrel is provided with a water outlet communicated with the cavity, the top of the filter screen is provided with a valve sleeve, the top of the basic barrel is provided with a water inlet communicated with the cavity, the valve core is arranged in the cavity, the top of the valve core is connected with the water inlet, the lower part of the valve core extends into the valve sleeve, the top of the valve core is concavely provided with a blind hole, the excircle of the valve core is provided with a first valve hole and a second valve hole at intervals up and down, two sealing rings are arranged in the valve sleeve at intervals up and down, the bottom of the cavity is provided with a section of threaded hole, the plunger is arranged in the threaded hole, the top, and a plug is arranged in the sewage discharge hole.
Wherein, the flange is connected with the stepped hole in a threaded manner.
Wherein, the end cap is a bolt.
Wherein, internal threads are arranged in the water inlet hole.
Wherein, plunger bottom annular array is provided with the several spanner jack.
Wherein, first valve opening is located the top of second valve opening, be provided with the annular that corresponds with the sealing washer in the valve barrel.
After the plunger rotates to drive the filter screen to rise, the first valve hole is located between the two sealing rings, the second valve hole is located in the filter screen, and the purification mode is started.
After the plunger rotates to drive the filter screen to descend, the first valve hole is located above the valve sleeve, the second valve hole is located between the two sealing rings, and the backwashing mode is started.
The utility model has the advantages that: the utility model provides a back flush filter based on filter screen floats, through the rotation of plunger, the drive filter screen floats from top to bottom, changes the position height of first valve opening and second valve opening, utilizes two sealing washers to carry out the sealed of first valve opening or second valve opening, realizes the switching of filtration mode and back flush mode, and is easy and simple to handle, can not reveal moreover, and structural stability is high.
Drawings
FIG. 1 is a schematic diagram of the purification mode of the present invention;
fig. 2 is a schematic structural diagram of the back washing mode of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1 to fig. 2.
The floating screen based backflush filter as shown in fig. 1 and 2 includes: basic barrel 1, filter screen 2, case 3 and plunger 7, be provided with the directional below cavity 10 of opening in the basic barrel 1, basic barrel 1 top is provided with the inlet opening 9 with cavity 10 intercommunication, and external inlet tube is provided with the valve on the inlet tube, carries out the management and control.
The improved water flow valve is characterized in that internal threads are arranged in the water inlet hole 9, the valve core 3 is arranged in the cavity 10, the top of the valve core is connected with the water inlet hole 9 in a threaded mode, a blind hole 4 extending downwards is formed in the top of the valve core 3 in an inwards concave mode, the filter screen 2 is concentrically arranged in the cavity 10, the valve sleeve 12 is connected to the top of the filter screen 2 in a threaded mode, the lower portion of the valve core 3 extends into the valve sleeve 12, a first valve hole 5 and a second valve hole 6 communicated with the blind hole 4 are formed in the surface of the outer circle of the valve core 3 at the upper portion and the lower portion of the surface of the outer circle of the valve core 3 at intervals, the first valve hole 5 is located above.
As shown in fig. 1, two sealing rings 11 are arranged in the valve housing 12 at intervals up and down, and a ring groove corresponding to the sealing ring 11 is arranged in the valve housing 12, so that the installation is convenient. When the filter screen 2 rises, make first valve opening 5 be located between two sealing washer 11, and second valve opening 6 is located filter screen 2, opens the purification mode, 1 one side of basis barrel is provided with apopore 13 with cavity 10 intercommunication, and external water pipe way, the rivers after the purification flow out from apopore 13.
As shown in fig. 2, after the filter screen 2 descends, the first valve hole 5 is located above the valve sleeve 12, the second valve hole 6 is located between the two sealing rings 11, the back flushing mode is started, water flows from the outer side to the inner side of the filter screen 2, the inner wall of the filter screen 2 is flushed, and the stability of the switching process between the purification mode and the back flushing mode is improved.
The utility model discloses a filter screen 2, including cavity 10, plunger 7, wrench socket 16, cavity 10 bottom is provided with one section screw hole 15, plunger 7 sets up in screw hole 15, plunger 7 bottom annular array is provided with 4 annular array distributions, conveniently utilizes special spanner to carry out the rotation of plunger 7, changes filter screen 2's floating position.
The bottom of the plunger 7 is provided with a sewage discharge hole 18 communicated with the stepped hole 17, a plug 8 is arranged in the sewage discharge hole 18, the plug 8 is a bolt, after the back flush mode is started, the plug 8 is removed, impurities are discharged through the sewage discharge hole 18, and a sewage bucket can be placed to carry out carrying of the impurities and sewage and then centralized treatment.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (8)
1. A backwash filter based on a floating filter screen, comprising: the filter comprises a basic barrel, a filter screen, a valve core and a plunger, wherein a cavity with a downward opening is arranged in the basic barrel, the filter screen is concentrically arranged in the cavity, one side of the basic barrel is provided with a water outlet communicated with the cavity, the top of the filter screen is provided with a valve sleeve, the top of the basic barrel is provided with a water inlet communicated with the cavity, the valve core is arranged in the cavity, the top of the valve core is connected with the water inlet, the lower part of the valve core extends into the valve sleeve, the top of the valve core is concavely provided with a blind hole, the excircle of the valve core is provided with a first valve hole and a second valve hole at intervals up and down, two sealing rings are arranged in the valve sleeve at intervals up and down, the bottom of the cavity is provided with a section of threaded hole, the plunger is arranged in the threaded hole, the top, and a plug is arranged in the sewage discharge hole.
2. The floating screen-based backflush filter of claim 1, wherein the flange is threadably connected to the stepped bore.
3. The floating screen-based backflush filter of claim 1, wherein the plugs are bolts.
4. The floating screen-based backflush filter of claim 1, wherein internal threads are provided within the water inlet aperture.
5. The floating screen-based backflush filter of claim 1, wherein the annular array of plunger bottoms is provided with a plurality of wrench sockets.
6. The floating screen-based backflush filter of claim 1, wherein the first valve opening is located above the second valve opening, and an annular groove corresponding to the sealing ring is provided in the valve housing.
7. The floating screen-based backflush filter of claim 6, wherein the purge mode is enabled when the plunger rotates to drive the screen up such that the first valve opening is located between the two seals and the second valve opening is located within the screen.
8. The floating screen-based backflush filter of claim 6, wherein the first valve opening is positioned above the valve housing and the second valve opening is positioned between the two sealing rings after the plunger is rotated to drive the screen down, thereby initiating the backflush mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020158650.XU CN211799187U (en) | 2020-02-10 | 2020-02-10 | Back flush filter based on filter screen floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020158650.XU CN211799187U (en) | 2020-02-10 | 2020-02-10 | Back flush filter based on filter screen floats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211799187U true CN211799187U (en) | 2020-10-30 |
Family
ID=72992712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020158650.XU Active CN211799187U (en) | 2020-02-10 | 2020-02-10 | Back flush filter based on filter screen floats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211799187U (en) |
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2020
- 2020-02-10 CN CN202020158650.XU patent/CN211799187U/en active Active
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