CN212119191U - Self-cleaning pre-filter - Google Patents

Self-cleaning pre-filter Download PDF

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Publication number
CN212119191U
CN212119191U CN202020211508.7U CN202020211508U CN212119191U CN 212119191 U CN212119191 U CN 212119191U CN 202020211508 U CN202020211508 U CN 202020211508U CN 212119191 U CN212119191 U CN 212119191U
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valve
adapter
water inlet
filter
communicated
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CN202020211508.7U
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Chinese (zh)
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曾奇风
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曾奇风
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Abstract

The utility model belongs to the technical field of filtration equipment, a leading filter of self-cleaning is related to, it has solved current leading filter can not the anti-installation, influence the installation convenience scheduling problem in the complex environment. The pre-filter comprises a valve body, an adapter, a filter cartridge and a drain pipe, wherein the valve body is provided with an inner cavity, the side wall of the valve body is provided with a water inlet and a water outlet, the adapter is rotatably arranged in the inner cavity of the valve body, the side wall of the adapter is provided with a water inlet hole, the adapter can enable the water inlet hole to be communicated with the water inlet or the water outlet through rotation, the filter cartridge is arranged in the inner cavity, the upper end of the filter cartridge is communicated with the adapter; when the water inlet hole on the adapter is communicated with the water inlet on the valve body, the cavity is communicated with the water outlet on the valve body; when the water inlet hole on the adapter is communicated with the water outlet on the valve body, the cavity is communicated with the water inlet on the valve body. The utility model has the advantages of can just adorn the dress instead, install the convenience good etc.

Description

Self-cleaning pre-filter
Technical Field
The utility model belongs to the technical field of filtration equipment, a leading filter of self-cleaning is related to.
Background
The front filter can preliminarily filter impurities at the front end, purify water sources and be widely used in families. After leading filter used a period, will be by some fine sand or other impurity shutoff on the cartridge filter in the leading filter, just need clear up the cartridge filter this moment, adopt to dismantle leading filter among the prior art and clear up the filter screen usually, the operation is comparatively inconvenient. And because the clearance filter screen is comparatively difficult, for avoiding the filter screen to block up regularly, the mesh design of filter screen can be great relatively to influence the filter effect. In addition, because the actual installation environment of the pre-filter is relatively complex, the pre-filter can be difficult to install normally and is relatively simple and convenient to install reversely, but the existing pre-filter only supports normal installation, so that the pre-filter cannot be well adapted to various installation environments.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided a leading filter of self-cleaning, the utility model aims to solve the technical problem that: how to make this leading filter can just adorn with turning over the dress to adapt to all kinds of installation environment, improve the installation convenience.
The purpose of the utility model can be realized by the following technical proposal:
a self-cleaning pre-filter, the pre-filter comprising:
the valve body is provided with an inner cavity, and the side wall of the valve body is provided with a water inlet and a water outlet;
the adapter is rotatably arranged in the inner cavity of the valve body, a water inlet hole is formed in the side wall of the adapter, and the adapter can enable the water inlet hole to be communicated with the water inlet or the water outlet through rotation;
the filter cartridge is arranged in the inner cavity, a cavity capable of being communicated with the water inlet or the water outlet is formed between the filter cartridge and the inner cavity, and the upper end of the filter cartridge is communicated with the adapter;
the upper end of the sewage discharge pipe is connected with the lower end of the filter cylinder, and the sewage discharge pipe is also connected with a valve capable of controlling the on-off of the sewage discharge pipe;
when the water inlet hole on the adapter is communicated with the water inlet on the valve body, the cavity is communicated with the water outlet on the valve body;
when the water inlet hole on the adapter is communicated with the water outlet on the valve body, the cavity is communicated with the water inlet on the valve body.
The working principle is as follows: when the device is normally used, a valve on the sewage discharge pipe can be closed, a water inlet hole on the adapter is communicated with a water inlet on the valve body, fluid flows into the adapter through the water inlet hole on the adapter from the water inlet of the valve body and then flows into the filter cartridge, the filtered water flows into the cavity through the filter cartridge and finally flows out from a water outlet of the valve body, and the filtered impurities are remained on the filter cartridge; when the filter cartridge needs to be cleaned, the valve of the drain pipe can be opened, the adapter is rotated, so that the water inlet hole on the adapter is communicated with the water outlet on the valve body, the cavity is communicated with the water inlet on the valve body, fluid flows into the cavity from the water inlet on the valve body, impurities on the wall of the filter cartridge are flushed into the drain pipe to be discharged, and self-cleaning is realized; in addition, valve body water inlet and delivery port mounted position in this application can be exchanged, and the water inlet can be used to go out water promptly, and the delivery port also can be used to intake, only needs according to actual installation needs, and this adapter is rotatory can be realized switching and realize just adorning and anti-device to adapt to all kinds of installation environment. Compared with the prior art, this application need not to dismantle the filter when wasing, washs convenient and fast, and can change the function of water inlet and delivery port according to actual need, improves installation convenience and flexibility.
In the self-cleaning prefilter, the filter cartridge comprises a cylindrical upper support, a cylindrical lower support and a cylindrical filter screen, a step surface is formed between the upper support and the lower support, a central hole communicated with the water inlet hole is formed in the adapter, the adapter is sleeved on the upper support through the central hole and is attached to the step surface, and the filter screen is embedded in the lower support. The cartridge filter designs as above, when needs change adapter or filter screen, directly with the adapter pull out can, change convenient and fast.
In the self-cleaning prefilter, a first through groove communicated with the water inlet hole on the adapter is formed in the side wall of the upper support, and a second through groove communicated with the cavity is formed in the side wall of the lower support. After the first through groove is designed, fluid can flow to the filter cylinder from the adapter or flow to the adapter from the filter cylinder; and a second through groove is designed to ensure that the fluid can flow from the inside of the filter screen to the outside of the filter screen or flow from the outside of the filter screen to the inside of the filter screen.
In the self-cleaning prefilter, a plurality of through holes are formed in the lower end face of the adapter, one end of each through hole is communicated with the cavity, and when a water inlet hole in the adapter is communicated with a water inlet in the valve body, the other end of each through hole is communicated with a water outlet in the valve body; when the water inlet hole on the adapter is communicated with the water outlet on the valve body, the other end of the through hole is communicated with the water inlet on the valve body.
In the self-cleaning prefilter, the upper bracket, the lower bracket and the adapter are all made of plastic, wherein the upper bracket and the lower bracket are of an integrated structure. The upper bracket and the lower bracket adopt plastic integrated design, so that the product cost can be reduced.
In the self-cleaning prefilter, the prefilter further comprises a valve cover, the valve cover is connected with the upper end of the valve body, the lower end surface of the valve cover is provided with a first annular groove, and the upper end of the upper support is embedded in the first annular groove; and the lower end of the lower support is embedded in the second annular groove. During installation, the lower end of the lower support of the filter cartridge can be inserted into the second annular groove in a plugging mode, then the valve cover is covered, the upper end of the upper support is enabled to be embedded into the first annular groove of the lower end face of the valve cover, and therefore the filter cartridge is limited, and installation is achieved.
In the self-cleaning prefilter, the upper end of the valve body is provided with a mounting hole, the lower end face of the valve cover is provided with an annular boss connected with the mounting hole, and the lower end face of the annular boss is close to the upper end face of the adapter. When the adapter is installed, the adapter can be sleeved on the filter cartridge, the lower end face of the adapter is enabled to be attached to the step face of the filter cartridge, the annular boss on the valve cover can limit the upper end face of the adapter, and therefore the adapter is installed.
In the self-cleaning prefilter, the valve is an electric valve, and the electric valve is connected with a controller with a timing device. After a controller with a timing device is designed, the opening and closing of the electric valve can be controlled at regular time, and the filter screen can be cleaned at regular time.
In the self-cleaning prefilter described above, the valve has a control unit for manual operation. The valve in the scheme needs manual operation and control, so that the valve is matched with other parts in the pre-filter to clean the filter screen, and compared with a mode with a timing device, the scheme with manual operation and control is low in cost.
Compared with the prior art, the utility model has the advantages of it is following:
this application need not to dismantle the filter when wasing, washs convenient and fast, and can change the function of water inlet and delivery port according to actual need, improves installation convenience and flexibility.
Drawings
Fig. 1 is a cross-sectional view of the present prefilter.
Fig. 2 is an exploded view of the present prefilter.
Fig. 3 is a schematic structural diagram of the adapter.
In the figure, 1, a valve body; 2. a water inlet; 3. a water outlet; 4. an adapter; 5. a water inlet hole; 6. a central bore; 7. a filter cartridge; 8. a cavity; 9. a blow-off pipe; 10. a valve; 11. a step surface; 12. a first through groove; 13. a second through groove; 14. a through hole; 15. a valve cover; 16. a first annular groove; 17. a second annular groove; 18. mounting holes; 19. an annular boss; 20. an upper bracket; 21. a lower bracket; 22. and (5) filtering by using a filter screen.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2 and 3, the prefilter comprises a valve body 1, a joint 4, a filter cartridge 7 and a sewage discharge pipe 9. Wherein, the inner chamber has been seted up to valve body 1, water inlet 2 and delivery port 3 have been seted up to the lateral wall of valve body 1, adapter 4 rotates and sets up in the inner chamber of valve body 1, inlet opening 5 has been seted up to adapter 4's lateral wall, adapter 4 can make this inlet opening 5 be linked together with water inlet 2 or delivery port 3 through the rotation, cartridge filter 7 sets up in the inner chamber, and form the cavity 8 that can be linked together with water inlet 2 or delivery port 3 between the two, cartridge filter 7's upper end is linked together with adapter 4, the upper end of blow off pipe 9 is connected with cartridge filter 7's lower extreme, and this blow off pipe 9 still is connected with the. Wherein, the valve 10 is an electric valve, and preferably, the electric valve is connected with a controller with a timing device. Of course, the valve 10 may be provided with a control portion for manual operation by a human operator.
When the water inlet hole 5 on the adapter 4 is communicated with the water inlet 2 on the valve body 1, the cavity 8 is communicated with the water outlet 3 on the valve body 1;
when the water inlet hole 5 on the adapter 4 is communicated with the water outlet 3 on the valve body 1, the cavity 8 is communicated with the water inlet 2 on the valve body 1.
Specifically, as shown in fig. 1 and 2, in the present embodiment, the filter cartridge 7 includes an upper bracket 20, a lower bracket 21 and a filter screen 22, which are cylindrical, and the upper bracket 20, the lower bracket 21 and the adapter 4 are preferably made of plastic, wherein the upper bracket 20 and the lower bracket 21 are preferably of an integral structure, thereby further reducing the cost. A step surface 11 is formed between the upper support 20 and the lower support 21, a central hole 6 communicated with the water inlet hole 5 is formed in the adapter 4, the adapter 4 is sleeved on the upper support 20 through the central hole 6 and is attached to the step surface 11, and the filter screen 22 is embedded in the lower support 21. The lateral wall of the upper bracket 20 is provided with a first through groove 12 communicated with the water inlet hole 5 on the adapter 4, and the lateral wall of the lower bracket 21 is provided with a second through groove 13 communicated with the cavity 8.
As shown in fig. 3, a plurality of through holes 14 are formed in the lower end surface of the adapter 4, one end of each through hole 14 is communicated with the cavity 8, and when the water inlet 5 of the adapter 4 is communicated with the water inlet 2 of the valve body 1, the other end of each through hole 14 is communicated with the water outlet 3 of the valve body 1; when the water inlet 5 on the adapter 4 is communicated with the water outlet 3 on the valve body 1, the other end of the through hole 14 is communicated with the water inlet 2 on the valve body 1.
As shown in fig. 1 and 2, in order to facilitate disassembly and assembly, the prefilter further comprises a valve cover 15, the valve cover 15 is connected with the upper end of the valve body 1, a first annular groove 16 is formed in the lower end surface of the valve cover 15, and the upper end of the upper bracket 20 is embedded in the first annular groove 16; the lower end of the inner cavity of the valve body 1 is provided with a second annular groove 17, and the lower end of the lower support 21 is embedded in the second annular groove 17. The upper end of the valve body 1 is provided with a mounting hole 18, the lower end surface of the valve cover 15 is provided with an annular boss 19 connected with the mounting hole 18, and the lower end surface of the annular boss 19 is close to the upper end surface of the adapter 4.
The working principle of the utility model is as follows: when the device is normally used, the valve 10 on the sewage discharge pipe 9 can be closed, the water inlet hole 5 on the adapter 4 is communicated with the water inlet 2 on the valve body 1, fluid flows into the adapter 4 from the water inlet 2 on the valve body 1 through the water inlet hole 5 on the adapter 4 and then flows into the filter cylinder 7, the filtered water flows into the cavity 8 through the filter cylinder 7 and finally flows out from the water outlet 3 of the valve body 1, and the filtered impurities are remained on the filter cylinder 7; when the filter cartridge 7 needs to be cleaned, the drain pipe valve 10 can be opened, the adapter 4 is rotated, the water inlet hole 5 on the adapter is communicated with the water outlet 3 on the valve body 1, the cavity 8 is communicated with the water inlet 2 on the valve body 1 at the moment, fluid flows into the cavity 8 from the water inlet 2 on the valve body 1, impurities on the wall of the filter cartridge 7 are flushed into the drain pipe 9 to be discharged, and self-cleaning is realized; in addition, valve body water inlet 2 and 3 mounted positions of delivery port in this application can be exchanged, and water inlet 2 can be used to go out water promptly, and delivery port 3 also can be used to intake, only needs according to actual installation needs, and the switching can be realized to this adapter 4 of rotation.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (9)

1. A self-cleaning pre-filter, the pre-filter comprising:
the water-saving valve comprises a valve body (1), wherein an inner cavity is formed in the valve body (1), and a water inlet (2) and a water outlet (3) are formed in the side wall of the valve body (1);
the adapter (4) is rotatably arranged in an inner cavity of the valve body (1), a water inlet hole (5) is formed in the side wall of the adapter (4), and the adapter (4) can enable the water inlet hole (5) to be communicated with the water inlet (2) or the water outlet (3) through rotation;
the filter cartridge (7) is arranged in the inner cavity, a cavity (8) which can be communicated with the water inlet (2) or the water outlet (3) is formed between the filter cartridge (7) and the inner cavity, and the upper end of the filter cartridge (7) is communicated with the adapter (4);
the upper end of the sewage discharge pipe (9) is connected with the lower end of the filter cylinder (7), and the sewage discharge pipe (9) is also connected with a valve (10) capable of controlling the on-off of the sewage discharge pipe;
when the water inlet hole (5) on the adapter (4) is communicated with the water inlet (2) on the valve body (1), the cavity (8) is communicated with the water outlet (3) on the valve body (1);
when inlet opening (5) on adapter (4) are linked together with delivery port (3) on valve body (1), cavity (8) are linked together with water inlet (2) on valve body (1).
2. The self-cleaning prefilter of claim 1 wherein said filter cartridge (7) comprises a cylindrical upper support (20), a cylindrical lower support (21) and a cylindrical filter screen (22), a step surface (11) is formed between said upper support (20) and said lower support (21), said adapter (4) has a central hole (6) communicating with said inlet hole (5), said adapter (4) is fitted to said upper support (20) through said central hole (6) and abuts against said step surface (11), and said filter screen (22) is fitted in said lower support (21).
3. The self-cleaning prefilter of claim 2 wherein the side wall of said upper support (20) defines a first channel (12) communicating with said inlet opening (5) of said adapter (4), and the side wall of said lower support (21) defines a second channel (13) communicating with said chamber (8).
4. A self-cleaning prefilter according to claim 3 wherein the lower end face of said adapter (4) is provided with a plurality of through holes (14), one end of said through holes (14) being in communication with said chamber (8), the other end of said through holes (14) being in communication with the water outlet (3) of said valve body (1) when the water inlet (5) of the adapter (4) is in communication with the water inlet (2) of the valve body (1); when the water inlet hole (5) on the adapter (4) is communicated with the water outlet (3) on the valve body (1), the other end of the through hole (14) is communicated with the water inlet (2) on the valve body (1).
5. A self-cleaning pre-filter according to claim 2, 3 or 4, characterised in that the upper bracket (20), the lower bracket (21) and the adapter (4) are all made of plastics, wherein the upper bracket (20) and the lower bracket (21) are of one-piece construction.
6. The self-cleaning prefilter according to claim 4 further comprising a valve cover (15), wherein the valve cover (15) is connected with the upper end of the valve body (1), the lower end surface of the valve cover (15) is provided with a first annular groove (16), and the upper end of the upper support (20) is embedded in the first annular groove (16); and the lower end of the inner cavity of the valve body (1) is provided with a second annular groove (17), and the lower end of the lower support (21) is embedded in the second annular groove (17).
7. A self-cleaning prefilter according to claim 6 wherein the upper end of the valve body (1) is provided with a mounting hole (18), and the lower end face of the valve cover (15) has an annular boss (19) connected to the mounting hole (18), the lower end face of the annular boss (19) being adjacent to the upper end face of the adapter (4).
8. Self-cleaning pre-filter according to claim 1 or 2 or 3 or 4, characterised in that the valve (10) is an electrically operated valve, which is connected to a controller with a timing device.
9. Self-cleaning prefilter according to claim 1 or 2 or 3 or 4 wherein said valve (10) has a control for manual manipulation.
CN202020211508.7U 2020-02-26 2020-02-26 Self-cleaning pre-filter Active CN212119191U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020211508.7U CN212119191U (en) 2020-02-26 2020-02-26 Self-cleaning pre-filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020211508.7U CN212119191U (en) 2020-02-26 2020-02-26 Self-cleaning pre-filter

Publications (1)

Publication Number Publication Date
CN212119191U true CN212119191U (en) 2020-12-11

Family

ID=73678670

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020211508.7U Active CN212119191U (en) 2020-02-26 2020-02-26 Self-cleaning pre-filter

Country Status (1)

Country Link
CN (1) CN212119191U (en)

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