CN205995102U - Double-layer leaching net fore filter - Google Patents
Double-layer leaching net fore filter Download PDFInfo
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- CN205995102U CN205995102U CN201620832785.3U CN201620832785U CN205995102U CN 205995102 U CN205995102 U CN 205995102U CN 201620832785 U CN201620832785 U CN 201620832785U CN 205995102 U CN205995102 U CN 205995102U
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- separate space
- filter
- valve
- filter element
- switching
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Abstract
This utility model be related to a kind of double-layer leaching net fore filter it is characterised in that：The filter element including filter housings, being located in filter head housings body and switching valve, and it is connected to the valve head group on filter housings, described filter element has the filter screen that two-layer is nested with, described valve head group is arranged on the first end of filter element, described switching valve is arranged on the second end of filter element, form the first separate space between described filter element outer filter and filter housings inwall, form the second separate space between the inside and outside metafiltration net of described filter element, described filter element Inner filter net inner chamber is the 3rd separate space, the break-make of described switching Vavle switching first separate space and the second separate space.This utility model double-layer leaching net fore filter structure is simple, reasonable in design, is advantageously implemented filtration, just rinses, backwash inside and outside metafiltration net function, highly effective.
Description
Technical field
This utility model is related to a kind of double-layer leaching net fore filter.
Background technology
Fore filter operation principle is physics sieving, and filter element is mainly stainless (steel) wire, and main interceptor is silt, ferrum
The large particulate matters such as rust, algae, the water equipment of protection water route and family, is the first line of defence of full room water.
The precision of stainless (steel) wire plays pivotal role to the effect filtering：Precision is too low, the effect on driving birds is not good of filtration, does not have
Protective effect；Filtering accuracy is too high, and filter element easily shines into dirty stifled needs and often cleans.
For the problems referred to above, solution is that be furnished with the drainage screen filter of multiple precision with a product on the market at present
Core, the water quality situation according to different regions carries out differentiated marketing.
Content of the invention
The purpose of this utility model is to provide a kind of double-layer leaching net fore filter, this double-layer leaching net fore filter
Structure is simple, reasonable in design, is advantageously implemented filtration, just rinses, backwash inside and outside metafiltration net function, highly effective.
This utility model double-layer leaching net fore filter it is characterised in that：Including filter housings, it is located at filter housings
Interior filter element and switching valve, and it is connected to the valve head group on filter housings, described filter element has the filter screen that two-layer is nested with, institute
State the first end that valve head group is arranged on filter element, described switching valve is arranged on the second end of filter element, described filter element outer filter and mistake
Form the first separate space between filter shell inwall, form the second separate space between the inside and outside metafiltration net of described filter element, filter in described filter element
Net inner chamber is the 3rd separate space, the break-make of described switching Vavle switching first separate space and the second separate space.
Further, above-mentioned valve head group has water inlet, water purification outlet and is located between water inlet, water purification outlet
Switching switch, is connected to the first exhalant canal, connects by the water purification outlet in described valve head group by the water inlet in described valve head group
There is the second exhalant canal, in the first station of switching switch, described first exhalant canal is directly communicated with the first separate space, described
Second exhalant canal is directly communicated with the 3rd separate space；In the second station of switching switch, described first exhalant canal directly with
3rd separate space communicates, and described 3rd separate space is obstructed with the second exhalant canal, water purification outlet.
Further, the Inner filter net of above-mentioned filter element is upper end open, the cylindrical body of lower end closed, the outer leaching net of described filter element
It is the cylindrical body of opening for upper and lower end；Outer leaching net mesh number ratio is relatively low, about 50-200 mesh, and Inner filter net mesh number is higher, about
300-600 mesh, can determine according to actual water quality.
Further, above-mentioned switching valve periphery wall and filter housings internal perisporium form the 4th separate space, described 4th separate space
Communicate with the first separate space, described switching valve top is had groove cavity and communicated with the second separate space, switching valve be used for switching groove cavity,
Second separate space and the switching of the first separate space, the 4th separate space.
Further, the bottom water side of above-mentioned switching valve is connected with drainage joint, and described drainage joint is provided with manually
Switch valve.
Further, above-mentioned valve head group is triple-valve body, is provided with the rotating cylinder stretching in valve body on triple-valve body, described turn
Cylinder is switching switch, and rotating cylinder is driven by the turning handle stretching out outside triple-valve body and rotates, and rotating cylinder is the cylinder of lower openings, in cylinder
Port is had on body sidewall, cylinder is provided with projection to block the company of valve head group water inlet and the first separate space positioned at port bottom
Logical.
Further, above-mentioned switching valve includes top from top to bottom and arranges the base of groove cavity, rotating shaft and outer housing, described turn
The rotating cylinder that axle includes rotating disk and connects disk lower surface, described rotating disk sidepiece has breach, and described base is provided with by groove cavity
Towards the waterway of breach, the side wall of described rotating cylinder is provided with water hole, the case cover of described outer housing in base and turntable periphery,
Described rotating cylinder stretches out the bottom of outer housing, and is connected with knob, and described rotating cylinder bottom connects the water inlet port of drainage joint.
Further, above-mentioned switching valve includes top from top to bottom and arranges the base of groove cavity, Dingtao ceramics, dynamic pottery
Piece, rotating shaft and outer housing, the rotating cylinder that described rotating shaft includes rotating disk and connects disk lower surface, described rotating disk removable company with dynamic potsherd
Connect, and can rotate coaxially, dynamic potsherd sidepiece has breach, described base and Dingtao ceramics are provided with and lead to breach by groove cavity
Waterway, the side wall of described rotating cylinder is provided with water hole, and the case cover of described outer housing is in base and turntable periphery, described rotating cylinder
Stretch out the bottom of outer housing, and be connected with knob, described rotating cylinder bottom connects the water inlet port of drainage joint.
The method of work of this utility model double-layer leaching net fore filter, during filtration condition, valve head group is screwed into filtration condition,
Rinse switching valve to close, pollution discharge joint is closed, that is, valve head group switching switch is located at the first station, the first exhalant canal is directly with the
One separate space communicates, and described second exhalant canal is directly communicated with the 3rd separate space；First exhalant canal is obstructed with groove cavity, raw water warp
The water inlet crossing valve head group enters, and through the first exhalant canal, the first separate space, sequentially passes through outer metafiltration outside in by filter element
Net, inner filter screen, the 3rd separate space and the second exhalant canal, from the output of water purification outlet；When just rinsing outer filter state, valve head
Group is screwed into filtration condition, rinses switching valve and closes, the manual opening-closing valve of pollution discharge joint is opened, and that is, valve head group switching switch is located at the
One station, the first exhalant canal is directly communicated with the first separate space, and the first exhalant canal is obstructed with groove cavity, and pollution discharge joint is unimpeded,
Because toward the first exhalant canal, the first separate space, the 4th separate space, rotating cylinder inner chamber, pollution discharge joint non-resistance, raw water is through valve head group
Water inlet enters, and is directly over the first exhalant canal, the 4th separate space, rotating cylinder inner chamber and pollution discharge joint, toward pollution discharge joint discharge outlet
Discharge, without entering outer filter and inner filter screen, play and directly wash away outer filter.
During backwash inner filter screen state：Valve head group is screwed into backwash state, rinses switching valve and opens, pollution discharge joint manual
Open and close valve open, that is, switching switch be the second station, described first exhalant canal is directly communicated with the 3rd separate space, the described 3rd every
Chamber is obstructed with the second exhalant canal, water purification outlet, and groove cavity is communicated with the 4th separate space, and raw water is entered through the water inlet of valve head group
Enter, through the first exhalant canal directly to the inner surface of the 3rd separate space, from inner filter screen toward outer filter backwash, simultaneously because
Rinse switching valve open, pressure reduction is little, and water directly rinses downwards from inner filter screen outer surface and outer filter inwall, through second every
Chamber, groove cavity and the 4th separate space, discharge from the sewage draining exit of pollution discharge joint subsequently into after rotating cylinder inner chamber；
During backwash outer filter state：Valve head group is screwed into backwash state, rinses switching valve and closes, pollution discharge joint is opened,
I.e. switching switch is the second station, and described first exhalant canal is directly communicated with the 3rd separate space, and described 3rd separate space goes out with second
Aquaporin, water purification outlet are obstructed, and groove cavity is obstructed with the 4th separate space, and raw water enters through the water inlet of valve head group, Jing Guo
One exhalant canal directly to the inner surface of the 3rd separate space, from inner filter screen toward outer filter successively backwash, through the second separate space,
First separate space, the 4th separate space, discharge from the sewage draining exit of pollution discharge joint subsequently into after rotating cylinder inner chamber.
This utility model double-layer leaching net fore filter structure is simple, reasonable in design, is advantageously implemented filtration, just rinses,
Backwash inside and outside metafiltration net function, highly effective.
Brief description
Fig. 1 is the profile of this utility model double-layer leaching net fore filter；
Fig. 2 is the explosive view of Fig. 1；
Fig. 3 is the explosive view of filter element；
Fig. 4 is the profile of this utility model normal filtration；
Fig. 5 is the profile that this utility model is just rinsing outer filter；
Fig. 6 is the profile of this utility model backwash inner filter screen；
Fig. 7 is the profile of this utility model backwash outer filter；
Fig. 8 is a kind of explosive view of embodiment of switching valve；
Fig. 9 is the explosive view of switching valve another kind embodiment.
Specific embodiment
This utility model double-layer leaching net fore filter, including filter housings 1, the filter element 2 that is located in filter housings 1
With switching valve 3, and it is connected to the valve head group 4 on filter housings, described filter element 2 has the filter screen that two-layer is nested with, described valve
Head group 4 is arranged on the first end 201 of filter element 2, and described switching valve is arranged on the second end 202 of filter element, described filter element outer filter
Form the first separate space 5 between 203 and filter housings 1 inwall, between the inside and outside metafiltration net of described filter element, form the second separate space 6, institute
Stating filter element Inner filter net 204 inner chamber is the 3rd separate space 9, and described switching valve 3 switches the break-make of the first separate space 5 and the second separate space 6.
Further, in order to reasonable in design, several functions are realized, above-mentioned valve head group 4 has water inlet 401, water purification water outlet
Mouth 402 and the switching switch 403 being located between water inlet, water purification outlet, are connected to by the water inlet 401 in described valve head group 4
First exhalant canal 7, is connected to the second exhalant canal 8 by the water purification outlet 402 in described valve head group, the first of switching switch
During station, described first exhalant canal 7 is directly communicated with the first separate space 5, direct and the 3rd separate space 9 of described second exhalant canal 8
Communicate；In the second station of switching switch, described first exhalant canal 7 is directly communicated with the 3rd separate space 9, described 3rd separate space
9 is obstructed with the second exhalant canal 8, water purification outlet 402.Switching switch 403 effect of valve head group 4 is to allow after water inlet 401 be
Water purification filter, is still rinsed the effect of filter element.
Further, in order to reasonable in design, the Inner filter net 204 of above-mentioned filter element is upper end open, the cylindrical body of lower end closed,
The outer leaching net 203 of described filter element is the cylindrical body of opening for upper and lower end；Outer leaching net is 50-200 mesh, and Inner filter net is 300-600
Mesh.
Further, above-mentioned switching valve 3 periphery wall and filter housings internal perisporium form the 4th separate space 10, the described 4th every
Chamber 10 is communicated with the first separate space 5, and described switching valve 3 top is had groove cavity 301 and communicated with the second separate space 6, and switching valve 3 is used for
Switching groove cavity 301, the second separate space 6 and the first separate space 5, the switching of the 4th separate space 10.The effect of switching valve 3 is outside rinsing
The switching of filter screen, Inner filter net or whole filter element.
Further, in order to reasonable in design, the bottom water side of above-mentioned switching valve 3 is connected with drainage joint 11, described row
Water swivel is provided with manual switch valve 12.
Further, above-mentioned valve head group can be triple-valve body, is provided with the rotating cylinder 13 stretching in valve body on triple-valve body,
Described rotating cylinder as switches switch, and rotating cylinder drives rotation by the turning handle 14 stretching out outside triple-valve body, and rotating cylinder is lower openings
Cylinder, has port 16 on cylinder lateral wall, is provided with projection 15 to block valve head group water inlet positioned at port bottom on cylinder
Connection with the first separate space.When rotation turning handle 14 makes valve head group be in filtration condition, i.e. port 16 connection the 3rd separate space 9 He
Water purification outlet 402, and lead to first after intaking and cross aquaporin and the first separate space；And so that valve head group is in when rotating turning handle 14
During backwash state, i.e. port 16 connection water inlet 401 and the 3rd separate space 9, and lead directly to the 3rd separate space 9 after water inlet, and make into
Water cannot lead to first crosses aquaporin and the first separate space, also cannot lead to water purification outlet 402.
Further, a kind of embodiment of switching valve 3（As shown in Figure 8）, above-mentioned switching valve 3 includes top from top to bottom and sets
Put base 302, rotating shaft 303 and the outer housing 304 of groove cavity 301, described rotating shaft 303 includes rotating disk 3031 and connects disk lower surface
Rotating cylinder 3032, described rotating disk 3031 sidepiece has breach 3033, and described base is provided with and leads to breach 3033 by groove cavity 301
Waterway 3021, the side wall of described rotating cylinder 3032 is provided with water hole 3034, and the case cover of described outer housing 304 is in base 302
With rotating disk 3031 periphery, described rotating cylinder stretches out the bottom of outer housing, and is connected with knob 305, and described rotating cylinder bottom connects draining and connects
The water inlet port of head.This embodiment switching valve 3 has two kinds of work stations, and one kind is closed for switching valve 3, then water is from groove cavity 301
The 4th separate space cannot be flowed to, and when switching valve 3 is opened, then water is from groove cavity 301, by waterway 3021, rotating disk 3031 side
The breach 3033 in portion can flow to the 4th separate space.Water hole 3034 be for the 4th separate space water lead to rotating cylinder 3032 inner chamber,
Then flow to drainage joint 11.
Further, another kind of embodiment of switching valve 3（As shown in Figure 9）, above-mentioned switching valve 3 includes top from top to bottom
The base 302a of setting groove cavity 301a, Dingtao ceramics 303a, dynamic potsherd 304a, rotating shaft 305 and outer housing 306, described rotating shaft
305 rotating cylinders 3052 including rotating disk 3051 and connecting rotating disk 3051 lower surface, described rotating disk 3051 is removable with dynamic potsherd 304a
Connect, and can rotate coaxially, dynamic potsherd 304a sidepiece has breach 304a1, on described base 302a and Dingtao ceramics 303a
It is provided with the waterway 302a1 being led to breach 304a1 by groove cavity 301a, the side wall of described rotating cylinder 3052 is provided with water hole
3053, in base and turntable periphery, described rotating cylinder stretches out the bottom of outer housing to the case cover of described outer housing, and is connected with knob, institute
State the water inlet port that rotating cylinder bottom connects drainage joint.This embodiment switching valve 3 has two kinds of work stations, and a kind of is switching valve 3
Close, then water cannot flow to the 4th separate space from groove cavity 301a, and when switching valve 3 is opened, then water, from groove cavity 301a, passes through
Waterway 302a1, the breach 304a1 of rotating disk 3051 sidepiece can flow to the 4th separate space.Water hole 3053 is for the 4th separate space
Water lead to rotating cylinder 3052 inner chamber, then flow to drainage joint 11.
The method of work of this utility model double-layer leaching net fore filter, during filtration condition, valve head group is screwed into filtration condition,
Rinse switching valve to close, pollution discharge joint is closed, that is, valve head group switching switch is located at the first station, the first exhalant canal is directly with the
One separate space communicates, and described second exhalant canal is directly communicated with the 3rd separate space；First exhalant canal is obstructed with groove cavity, raw water warp
The water inlet crossing valve head group enters, and through the first exhalant canal, the first separate space, sequentially passes through outer metafiltration outside in by filter element
Net, inner filter screen, the 3rd separate space and the second exhalant canal, from the output of water purification outlet；When just rinsing outer filter state, valve head
Group is screwed into filtration condition, rinses switching valve and closes, the manual opening-closing valve of pollution discharge joint is opened, and that is, valve head group switching switch is located at the
One station, the first exhalant canal is directly communicated with the first separate space, and the first exhalant canal is obstructed with groove cavity, and pollution discharge joint is unimpeded,
Because toward the first exhalant canal, the first separate space, the 4th separate space, rotating cylinder inner chamber, pollution discharge joint non-resistance, raw water is through valve head group
Water inlet enters, and is directly over the first exhalant canal, the 4th separate space, rotating cylinder inner chamber and pollution discharge joint, toward pollution discharge joint discharge outlet
Discharge, without entering outer filter and inner filter screen, play and directly wash away outer filter.
During backwash inner filter screen state：Valve head group is screwed into backwash state, rinses switching valve and opens, pollution discharge joint manual
Open and close valve open, that is, switching switch be the second station, described first exhalant canal is directly communicated with the 3rd separate space, the described 3rd every
Chamber is obstructed with the second exhalant canal, water purification outlet, and groove cavity is communicated with the 4th separate space, and raw water is entered through the water inlet of valve head group
Enter, through the first exhalant canal directly to the inner surface of the 3rd separate space, from inner filter screen toward outer filter backwash, simultaneously because
Rinse switching valve open, pressure reduction is little, and water directly rinses downwards from inner filter screen outer surface and outer filter inwall, through second every
Chamber, groove cavity and the 4th separate space, discharge from the sewage draining exit of pollution discharge joint subsequently into after rotating cylinder inner chamber；
During backwash outer filter state：Valve head group is screwed into backwash state, rinses switching valve and closes, pollution discharge joint is opened,
I.e. switching switch is the second station, and described first exhalant canal is directly communicated with the 3rd separate space, and described 3rd separate space goes out with second
Aquaporin, water purification outlet are obstructed, and groove cavity is obstructed with the 4th separate space, and raw water enters through the water inlet of valve head group, Jing Guo
One exhalant canal directly to the inner surface of the 3rd separate space, from inner filter screen toward outer filter successively backwash, through the second separate space,
First separate space, the 4th separate space, discharge from the sewage draining exit of pollution discharge joint subsequently into after rotating cylinder inner chamber.
This utility model double-layer leaching net fore filter structure is simple, reasonable in design, is advantageously implemented filtration, just rinses,
Backwash inside and outside metafiltration net function, highly effective.
The foregoing is only preferred embodiment of the present utility model, all accomplished to become according to this utility model claim
Change and all should belong to covering scope of the present utility model with modifying.
Claims (8)
1. a kind of double-layer leaching net fore filter it is characterised in that：Including filter housings, the filter element that is located in filter head housings body
And switching valve, and it is connected to the valve head group on filter housings, described filter element has the filter screen that two-layer is nested with, described valve head group
It is arranged on the first end of filter element, described switching valve is arranged on the second end of filter element, described filter element outer filter and filter housings
Form the first separate space between inwall, form the second separate space between the inside and outside metafiltration net of described filter element, described filter element Inner filter net inner chamber is
3rd separate space, the break-make of described switching Vavle switching first separate space and the second separate space.
2. double-layer leaching net fore filter according to claim 1 it is characterised in that：Described valve head group have water inlet,
Water purification outlet and the switching switch being located between water inlet, water purification outlet, are connected to the by the water inlet in described valve head group
One exhalant canal, is connected to the second exhalant canal by the water purification outlet in described valve head group, in the first station of switching switch,
Described first exhalant canal is directly communicated with the first separate space, and described second exhalant canal is directly communicated with the 3rd separate space；In switching
During the second station of switch, described first exhalant canal is directly communicated with the 3rd separate space, and described 3rd separate space and the second water outlet are led to
Road, water purification outlet are obstructed.
3. double-layer leaching net fore filter according to claim 1 it is characterised in that：The Inner filter net of described filter element is upper end
Opening, the cylindrical body of lower end closed, the outer leaching net of described filter element is the cylindrical body of opening for upper and lower end；Outer leaching net is 50-
200 mesh, Inner filter net is 300-600 mesh.
4. the double-layer leaching net fore filter according to Claims 2 or 3 it is characterised in that：Described switching valve periphery wall with
Filter housings internal perisporium forms the 4th separate space, and described 4th separate space is communicated with the first separate space, and described switching valve top has recessed
Vallecular cavity is communicated with the second separate space, and switching valve is used for switching the switching of groove cavity, the second separate space and the first separate space, the 4th separate space.
5. double-layer leaching net fore filter according to claim 4 it is characterised in that：The bottom water side of described switching valve
It is connected with drainage joint, described drainage joint is provided with manual switch valve.
6. double-layer leaching net fore filter according to claim 2 it is characterised in that：Described valve head group is triple-valve body,
The rotating cylinder stretching in valve body is provided with triple-valve body, described rotating cylinder as switches switch, rotating cylinder is by stretching out outside triple-valve body
Turning handle drives and rotates, and rotating cylinder is the cylinder of lower openings, has port on cylinder lateral wall, is located at port bottom on cylinder
It is provided with projection to block the connection of valve head group water inlet and the first separate space.
7. double-layer leaching net fore filter according to claim 5 it is characterised in that：Described switching valve includes from top to bottom
Top arranges base, rotating shaft and the outer housing of groove cavity, and described rotating shaft includes rotating disk and connects the rotating cylinder of disk lower surface, described turn
Disk sidepiece has breach, and described base is provided with the waterway being led to breach by groove cavity, and the side wall of described rotating cylinder was provided with
Water hole, in base and turntable periphery, described rotating cylinder stretches out the bottom of outer housing to the case cover of described outer housing, and is connected with knob, institute
State the water inlet port that rotating cylinder bottom connects drainage joint.
8. double-layer leaching net fore filter according to claim 5 it is characterised in that：Described switching valve includes from top to bottom
Top arranges base, Dingtao ceramics, dynamic potsherd, rotating shaft and the outer housing of groove cavity, and described rotating shaft includes rotating disk and connects rotating disk
The rotating cylinder of lower surface, described rotating disk and dynamic potsherd releasable connection, and can rotate coaxially, dynamic potsherd sidepiece has breach, institute
State base and Dingtao ceramics is provided with the waterway being led to breach by groove cavity, the side wall of described rotating cylinder is provided with water hole, institute
In base and turntable periphery, described rotating cylinder stretches out the bottom of outer housing to the case cover stating outer housing, and is connected with knob, under described rotating cylinder
Portion connects the water inlet port of drainage joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620832785.3U CN205995102U (en) | 2016-08-03 | 2016-08-03 | Double-layer leaching net fore filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620832785.3U CN205995102U (en) | 2016-08-03 | 2016-08-03 | Double-layer leaching net fore filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205995102U true CN205995102U (en) | 2017-03-08 |
Family
ID=58199237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620832785.3U Withdrawn - After Issue CN205995102U (en) | 2016-08-03 | 2016-08-03 | Double-layer leaching net fore filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205995102U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139666A (en) * | 2016-08-03 | 2016-11-23 | 厦门建霖工业有限公司 | Double-layer leaching net fore filter and method of work thereof |
| CN107754420A (en) * | 2017-09-26 | 2018-03-06 | 海宁市水享净水设备有限公司 | A kind of new fore filter |
| CN108211461A (en) * | 2018-03-20 | 2018-06-29 | 倪秀秀 | Switching valve and the backwash fore filter with switching valve |
-
2016
- 2016-08-03 CN CN201620832785.3U patent/CN205995102U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139666A (en) * | 2016-08-03 | 2016-11-23 | 厦门建霖工业有限公司 | Double-layer leaching net fore filter and method of work thereof |
| CN106139666B (en) * | 2016-08-03 | 2018-11-23 | 厦门百霖净水科技有限公司 | Double-layer leaching net fore filter and its working method |
| CN107754420A (en) * | 2017-09-26 | 2018-03-06 | 海宁市水享净水设备有限公司 | A kind of new fore filter |
| CN107754420B (en) * | 2017-09-26 | 2023-04-28 | 杭州水享智能科技集团有限公司 | Novel pre-filter |
| CN108211461A (en) * | 2018-03-20 | 2018-06-29 | 倪秀秀 | Switching valve and the backwash fore filter with switching valve |
| CN108211461B (en) * | 2018-03-20 | 2023-09-19 | 倪秀秀 | Switching valve and back flush prefilter with switching valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180426 Address after: 361000 Tongming Park, Tongan District, Xiamen, Fujian, 305 Patentee after: Xiamen Bailin water purification technology Co. Ltd. Address before: 361000 Tianfeng Road, Jimei District, Xiamen, Fujian Province, No. 69 Patentee before: Xiamen Runner Industrial Corporation |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170308 Effective date of abandoning: 20181123 |