CN102824773B - Fore filter - Google Patents
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- CN102824773B CN102824773B CN201110162704.5A CN201110162704A CN102824773B CN 102824773 B CN102824773 B CN 102824773B CN 201110162704 A CN201110162704 A CN 201110162704A CN 102824773 B CN102824773 B CN 102824773B
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Abstract
The invention discloses a kind of fore filter, comprise the copper lid with medium entrance and media outlet, the cylindrical shell with sewage draining exit, the draining valve assembly being arranged at sewage draining exit place, the first filter screen of being arranged on the filter screen skeleton in cylindrical shell and being arranged on this filter screen skeleton, also comprise: be arranged in copper lid, and the water-locator be connected with filter screen skeleton, which is provided with point chamber sealing ring and recoil switching hole, copper is covered with point chamber convex hole that can be sealed and matched with point chamber sealing ring; Lifting device, its one end is stretched out outside copper lid, and the other end is connected with water-locator; Be arranged in copper lid, and with the lining that water-locator is sealed and matched, it offers recoil through hole, it is equal that stroke when point chamber sealing ring moves to described point of chamber convex hole contact and recoiling switches the stroke that hole moves to when described recoil through hole overlaps.The present invention is when switching to flushing state, and carry out back flush laterally by the first filter screen inwall, its developing result is better.
Description
Technical field
The present invention relates to filter technology field, particularly a kind of fore filter.
Background technology
Running water, before pipe network arrives each user, have passed a lot of pipeline, and there is the impurity such as a lot of silt, iron rust, floating material inside pipeline, the words if do not carried out filtration treatment can cause uses water pollutions.Adopt fore filter to filter on the source entering domestic water, effectively can not only eliminate secondary pollution, reduce water pollutions disease, and can remove solid impurity, protection pipeline security of system, reduces system maintenance expense.
As shown in Figure 1, the fore filter of prior art comprises both sides and is provided with inlet opening and the copper lid 1 of delivery port, the cylindrical shell 3 be fixedly connected with copper lid 1, the filter screen skeleton 5 be arranged in cylindrical shell 3, the screen pack 4 be fixedly mounted on filter screen skeleton 5, and cylindrical shell 3 lower end is fixedly connected with drainage joint 9 and is provided with the ball valve 10 of handle 11.On the right side of copper lid 1, inlet opening internal thread is connected with water supply connector 2, and on the left of it, delivery port internal thread is connected with water out adapter 12, seals by O RunddichtringO.Filter screen skeleton 5 lower end is provided with rubber blanket 8, and rubber blanket 8 is located between filter screen skeleton 5 and drainage joint 9, plays a part to cut off and support.
During work, ball valve 10 is in closed condition, and running water enters in filter screen skeleton 5 from water inlet by screen pack 4, and because filter screen skeleton 5 is hollow, running water flows out from delivery port by after filter screen skeleton 5.When this fore filter uses a period of time to need cleaning, only needing opening handle 11, open ball valve 10, by directly flushing with tap water screen pack 4, and sewage being discharged by opening the discharge outlet that ball valve 10 formed.
But what current fore filter adopted is the mode that forward rinses, and its cleaning effect is poor.At present, the good fore filter of a kind of cleaning performance is needed badly.
Summary of the invention
In view of this, the invention provides a kind of fore filter, to improve the developing result of its filter screen.
For achieving the above object, the invention provides following technical scheme:
A kind of fore filter, comprise the copper lid with medium entrance and media outlet, the cylindrical shell with sewage draining exit, the draining valve assembly being arranged at described sewage draining exit place, the first filter screen of being arranged on the filter screen skeleton in described cylindrical shell and being arranged on this filter screen skeleton, also comprise:
Be arranged in described copper lid, and the water-locator be connected with described filter screen skeleton, which is provided with point chamber sealing ring and recoil switching hole, described copper is covered with point chamber convex hole that can be sealed and matched with described point of chamber sealing ring;
Lifting device, its one end is stretched out outside described copper lid, and the other end is connected with described water-locator;
Be arranged in described copper lid, and the lining be sealed and matched with described water-locator, it offers recoil through hole, described point of chamber sealing ring moves to stroke when described point of chamber convex hole contacts and recoils that to switch the stroke that hole moves to when described recoil through hole overlaps equal with described.
Preferably, in above-mentioned fore filter, also comprise the second filter screen be set in outside described lining.
Preferably, in above-mentioned fore filter, between described lining and described water-locator, be provided with some O RunddichtringOs.
Preferably, in above-mentioned fore filter, described lifting device specifically comprises:
Screw rod, its axial limiting covers at described copper, and its end of thread is threaded with described water-locator, and its stiff end stretches out outside described copper lid;
Screw rod knob, it is fixedly connected with the stiff end of described screw rod.
Preferably, in above-mentioned fore filter, described filter screen skeleton comprises:
Multiple ring skeleton sheets of axially-aligned, and the some braces connecting all described ring skeleton sheets, ring skeleton sheet described in adjacent two forms cannelure.
Preferably, in above-mentioned fore filter, there is bottom described water-locator the snap fit catching on described ring skeleton sheet.
Preferably, in above-mentioned fore filter, the lower end periphery face of described water-locator is provided with annular catch, and this annular catch forms with the described ring skeleton sheet being positioned at described filter screen skeleton top the sealing ring holding tank holding described point chamber sealing ring.
Preferably, in above-mentioned fore filter, described draining valve assembly is ball valve, and the valve rod of this ball valve is provided with drain knob.
As can be seen from above-mentioned technical scheme, fore filter provided by the invention comprises the copper lid with medium entrance and media outlet, the cylindrical shell with sewage draining exit, the draining valve assembly being arranged at described sewage draining exit place, the first filter screen of being arranged on the filter screen skeleton in described cylindrical shell and being arranged on this filter screen skeleton, also comprise: be arranged in described copper lid, and the water-locator be connected with described filter screen skeleton, which is provided with point chamber sealing ring and recoil switching hole, described copper is covered with point chamber convex hole that can be sealed and matched with described point of chamber sealing ring; Lifting device, its one end is stretched out outside described copper lid, and the other end is connected with described water-locator; Be arranged in described copper lid, and the lining be sealed and matched with described water-locator, it offers recoil through hole, described point of chamber sealing ring moves to stroke when described point of chamber convex hole contacts and recoils that to switch the stroke that hole moves to when described recoil through hole overlaps equal with described.
Water-locator is provided with point chamber sealing ring and recoil switches hole, copper is covered with point chamber convex hole that can be sealed and matched with point chamber sealing ring, namely water-locator move to point chamber sealing ring contact with a point chamber convex hole time, point chamber sealing ring and a point chamber convex hole fitted seal form upper and lower two cavitys, make the liquid medium entered by medium entrance directly can not enter the position of filter screen skeleton and the first filter screen, namely liquid medium can not enter the first its interior by outside the first filter screen.One end of lifting device is stretched out outside copper lid, and the other end is connected with water-locator, can realize moving axially of water-locator by this lifting device, then controls point chamber sealing ring and the sealing and the cut-out that divide chamber convex hole.Lining and described water-locator are tightly connected, it offers recoil through hole, point chamber sealing ring moves to stroke when contacting with described point of chamber convex hole and recoils that to switch the stroke that hole moves to when overlapping with described recoil through hole equal with described, make to be tightly connected at point chamber convex hole and a point chamber sealing ring, when namely being cut into upper and lower two cavity by point chamber sealing ring and a point chamber convex hole, recoil through hole switches hole with recoil and just in time overlaps, due under the effect of hydraulic pressure, inside water first screen pack, infiltration outside realizes screen pack backwash.
The present invention can realize just rinsing the switching with backwash by pulling apparatus and water-locator, by the lifting of pulling apparatus, divide chamber sealing ring to contact with a point chamber convex hole to fit, make the first filter screen form two mutual obstructed cavitys (being ended by point chamber sealing ring and a point chamber convex hole) outward; Liquid medium is entered by medium entrance, arrive first the upper end that point chamber sealing ring and point chamber convex hole end side, recoil now on the recoil through hole of lining and water-locator switches hole and overlaps, and liquid medium is directly entered in the first filter screen by recoil through hole and recoil switching hole.Ending the lower end of side through springing back over point chamber sealing ring and point chamber convex hole, directly cleaning the first filter screen inwall, carrying out back flush laterally by the first filter screen inwall.Water-locator moves downward certain distance, and upper and lower UNICOM forms a cavity, and lining recoil port switches hole misplace with described recoil, and current directly rinse the first screen pack outer wall realization and just rinse.Instead and just working and switching, screen pack rinses clean more thorough.
In a preferred version of the present invention, the second filter screen is arranged with outside lining, liquid medium is entered by medium entrance, arrive first the upper end that point chamber sealing ring and point chamber convex hole end side, recoil now on the recoil through hole of lining and water-locator switches hole and overlaps, and liquid medium is directly entered in the first filter screen after preliminary filtration by the second filter screen on lining.Ending the lower end of side through springing back over point chamber sealing ring and point chamber convex hole, directly cleaning the first filter screen inwall, reach the effect that secondary rinses.The present invention is owing to arranging the second filter screen, the liquid medium of recoil first filter screen inwall can be made to filter through preliminary, and with elimination partial impurities, thus the liquid medium rinsing the first filter screen is the liquid comparatively cleaned, the secondary pollution of the first filter screen can be avoided, improve the developing result of the first filter screen further.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.
Fig. 1 is the sectional structure schematic diagram of this existing fore filter;
The structural representation of the fore filter that Fig. 2 provides for the embodiment of the present invention;
The sectional structure schematic diagram of fore filter during the normal work that Fig. 3 provides for the embodiment of the present invention;
The sectional structure schematic diagram of fore filter during the back flush that Fig. 4 provides for the embodiment of the present invention;
The sectional structure schematic diagram of fore filter during the forward flushing that Fig. 5 provides for the embodiment of the present invention;
The sectional structure schematic diagram removing the fore filter of cylindrical shell and copper lid that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the water-locator that Fig. 7 provides for the embodiment of the present invention;
In Fig. 1-Fig. 7,1, Tong Gai; 2, water supply connector; 3, cylindrical shell; 4, screen pack; 5, filter screen skeleton; 8, rubber blanket; 9, drainage joint; 10, ball valve; 11, handle; 12, water out adapter; 101, screw rod knob; 102, collar; 103, Tong Gai; 104, lining; 105, the second filter screen; 106, water-locator; 107, the first filter screen; 108, filter screen skeleton; 109, cylindrical shell; 110, sealing ring; 111, Decorative Cover; 112, drain knob; 113, draining valve assembly; 114, screw rod; 115, O RunddichtringO; 116, chamber convex hole is divided; 117, chamber sealing ring is divided; 1061, snap fit; 1062, recoil switches hole; 1063, thread bush; 1064, water flow grooves; 1065, O RunddichtringO holding tank; 1081, ring skeleton sheet; 1082, cannelure; 1083, brace; 1141, the end of thread.
Detailed description of the invention
The invention discloses a kind of fore filter, to improve the developing result of its filter screen.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 2-Fig. 7, the structural representation of the fore filter that Fig. 2 provides for the embodiment of the present invention; The sectional structure schematic diagram of fore filter during the normal work that Fig. 3 provides for the embodiment of the present invention; The sectional structure schematic diagram of fore filter during the back flush that Fig. 4 provides for the embodiment of the present invention; The sectional structure schematic diagram of fore filter during the forward flushing that Fig. 5 provides for the embodiment of the present invention; The sectional structure schematic diagram removing the fore filter of cylindrical shell and copper lid that Fig. 6 provides for the embodiment of the present invention; The structural representation of the water-locator that Fig. 7 provides for the embodiment of the present invention.
Fore filter provided by the invention, comprise the copper lid 103 with medium entrance and media outlet, the cylindrical shell 109 with sewage draining exit, be arranged at sewage draining exit place draining valve assembly 113, be arranged on the filter screen skeleton 108 in cylindrical shell 109 and be arranged on the first filter screen 107 on this filter screen skeleton 108.During normal work, the sewage draining exit on cylindrical shell 109 is ended by draining valve assembly 113, only when outwards washing by water, just passes through draining valve assembly 113 by sewage draining exit conducting.Of the present invention focusing on also comprises water-locator 106, lifting device and lining 104.Wherein, water-locator 106 is arranged in copper lid 103, and is connected with filter screen skeleton 108, by moving up and down this water-locator 106, and can corresponding mobile filter screen skeleton 108 and the first filter screen 107.Water-locator 106 is provided with point chamber sealing ring 117 and recoil switches hole 1062, copper lid 103 is provided with point chamber convex hole 116 that can be sealed and matched with point chamber sealing ring 117, namely, when a point chamber sealing ring 117 moves to point convex hole 116 position, chamber, can be formed with point chamber convex hole 116 and be sealed and matched.
One end of lifting device is stretched out outside copper lid 103, and the other end is connected with water-locator 106, can control moving up and down of water-locator 106 accordingly, to realize the switching of forward work and back flush by the one end stretched in outside this lifting device outside copper lid 103.When water-locator 106 moves upward, a point chamber convex hole 116 on point chamber sealing ring 117 position and copper lid 103 is sealed and matched, this time-division chamber sealing ring about 117 forms two cavitys, water flows into inside filter screen skeleton 108, flow to inside the first screen pack 107, water permeates outside and realizes recoil inside the first screen pack 107; When water-locator 106 moves downward, point chamber sealing ring 117 staggers with point chamber convex hole 116 position on copper lid 103, and point chamber sealing ring about 117 is communicated with formation cavity, and current directly rinse the first screen pack outer wall and realize square impact.When it will be appreciated by persons skilled in the art that positive backwash, need draining valve assembly 113 to open, can be discharged by sewage draining exit to make the sewage after rinsing.Normal working flow direction equals forward flushing water flow path direction, is closed by draining valve assembly 113.
Lining 104 is arranged in copper lid 103, and be tightly connected with water-locator 106, it offers recoil through hole, point chamber sealing ring 117 moves to stroke when contacting with described point of chamber convex hole 116 and recoils that to switch the stroke that hole 1062 moves to when overlapping with described recoil through hole equal with described, make when point chamber convex hole 116 is tightly connected with a point chamber sealing ring 117, recoil through hole switches hole 1062 with recoil and just in time communicates, so the liquid medium entered by medium entrance can switch hole 1062 by recoil through hole and recoil enter water-locator 106 inside, and the inside of the first filter screen 107 is directly entered by water-locator 106, and under the effect of the pressure, recoiled by the inside of the first filter screen 107 outside to the first filter screen 107.
Dynamic structure of the present invention and operation principle thereof are described below:
As shown in Figure 3, when fore filter provided by the invention is in normal operating conditions, now draining valve assembly 113 is in closed condition, and point chamber convex hole 116 does not contact with a point chamber sealing ring 117.A point chamber sealing ring 117 is positioned at a point downside for chamber convex hole 116 in the present embodiment, therefore liquid medium (the such as running water entered by the medium entrance on the left of copper lid 103, certain can also be other liquid according to the application scenarios of potential quality filter, for the ease of understanding, liquid medium is replaced below with running water) directly along point chamber convex hole 116 and the space dividing chamber sealing ring 117, the outside of the first filter screen 107 can be entered.Running water, by the filtration of the first filter screen 107, enters into the inside of the first filter screen 107, and upwards flows along the inner chamber of the first filter screen 107, through the inner chamber of water-locator 106, and finally flowed out by the inner chamber of water-locator 106, and the media outlet on the right side of copper lid 103 is discharged.
As shown in Figure 4, when fore filter provided by the invention is in reverse bath state, now draining valve assembly 113 is in opening state, by the lifting of pulling apparatus, divide chamber sealing ring 117 to contact with a point chamber convex hole 116 to fit, make the outside of the first filter screen 107 form two mutual obstructed cavitys (being ended by point chamber sealing ring 117 and a point chamber convex hole 116); Running water is entered by the medium entrance on the left of copper lid 103, arrive first the upper end that point chamber sealing ring 117 and point chamber convex hole 116 end side, recoil now on the recoil through hole of lining 104 and water-locator 106 switches hole 1062 and overlaps, and running water directly enters the inside of the first filter screen 107 by recoil through hole and recoil switching hole 1062.Due to hydraulic pressure effect, the flow direction point chamber sealing ring 117 and point chamber convex hole 116 end the lower end of side, and liquid is outwards got express developed from the first filter screen 107 inwall, and reach the effect of backwash, the sewage after cleaning is discharged by sewage draining exit.
In order to optimize technique scheme further, the present invention also can comprise the second filter screen 105 be set in outside lining 104.Running water is entered by medium entrance, arrive first the upper end that point chamber sealing ring 117 and point chamber convex hole 116 end side, recoil now on the recoil through hole of lining 104 and water-locator 106 switches hole 1062 and overlaps, and running water is directly entered in the first filter screen 107 after preliminary filtration by the second filter screen 105 on lining 104.End the lower end of side through undue chamber sealing ring 117 and point chamber convex hole 116, liquid is outwards got express developed from the first filter screen 107 inwall, reaches the effect of backwash.
The present invention is owing to arranging the second filter screen 105, the running water of recoil first filter screen 107 inwall can be made to filter through preliminary, with elimination partial impurities, thus the running water rinsing the first filter screen 107 is the liquid comparatively cleaned, the secondary pollution of the first filter screen 107 can be avoided, improve the filter effect of the first filter screen 107 further.
Some O RunddichtringOs 115 are provided with, to keep the sealing between lining 104 and water-locator 106 between lining 104 and water-locator 106.The quantity of O RunddichtringO 115 is 3 in the present embodiment, 3 O RunddichtringOs 115 are in two kinds of duties, water-locator 106 moves, 3 O RunddichtringOs 115 are followed and are moved up, now 3 O RunddichtringOs 115 are divided into Liang Duan district, recoil simultaneously on the recoil through hole of lining 104 and water-locator 106 switches hole 1062 and overlaps, and water can only flow into from coincidence entrance, can realize recoiling; Water-locator moves down 3 O RunddichtringOs 115 and follows lower movement, recoil now on the recoil through hole of lining 104 and water-locator 106 switches hole 1062 and misplaces, recoil through hole is switched hole with recoil and is divided into Liang Duan district by 3 O RunddichtringOs 115,3 O RunddichtringOs 115, sealing recoil port and recoil switch hole, and water normally rinses from the first screen pack.
Lifting device provided by the invention specifically can comprise screw rod 114 and screw rod knob 101.Wherein, screw rod 114 axial limiting is on copper lid 103, and its end of thread 1141 is threaded with water-locator 106, and its stiff end stretches out outside copper lid 103.By by screw rod 114 axial limiting on copper lid 103, therefore moving axially of screw rod 114 can be limited, and can only rotate, by the rotation of screw rod 114, water-locator 106 can be pulled accordingly, due to water-locator and filter screen skeleton 108, filter screen bracket 108 and the first filter screen 107 therefore can be mentioned accordingly.By changing the rotation direction of screw rod 114, moving up and down of water-locator 106 can be realized accordingly, thus realizing the switching of duty and reverse bath state.For the ease of realizing the rotation of screw rod 114, can arrange a screw rod knob 101 be fixedly connected with the stiff end of screw rod 114 accordingly, screw rod knob 101 is more conducive to turn.Screw rod knob 101 can have convex structure, and convex structure can be beneficial to and the coordinating of the operation of hand; Screw rod knob 101 also can be column construction, and arranges the friction lines improving frictional force at the outer surface of this column construction, is beneficial to being affectedly bashful of hand.
As shown in Figure 5, filter screen skeleton 108 provided by the invention specifically can comprise multiple ring skeleton sheets 1081 of axially-aligned, and connects some braces 1083 of all ring skeleton sheets 1081, and adjacent two ring skeleton sheets 1081 form cannelure 1082.As shown in Figure 6, there is bottom water-locator 106 snap fit 1061 catching on ring skeleton sheet 1081, joined by the card of snap fit 1061 with ring skeleton sheet 1081, realize the connection of filter screen skeleton 108 and water-locator 106.The lower end periphery face of water-locator 106 is provided with annular catch, and this annular catch forms with the ring skeleton sheet 1081 being positioned at filter screen skeleton 108 top the sealing ring holding tank holding point chamber sealing ring 117, and a point chamber sealing ring 117 is arranged in sealing circle holding tank.The outer peripheral face on water-locator 106 top is provided with O RunddichtringO holding tank 1065, and this O RunddichtringO holding tank 1065 is for placing O RunddichtringO 115.The top of water-locator 106 is provided with the thread bush 1063 with screw rod 114 threaded engagement, this thread bush 1063 is connected with the inwall of water-locator 106 by some floors, form water flow grooves 1064 between adjacent two floors, running water is flowed out by this water flow grooves 1064 and by outside media outlet outflow filter.
The lower end of filter screen skeleton 108 is provided with sealing gasket 110, sealing gasket 110 function: 1. support the first screen pack, 2. seals the first screen pack lower port, and 3. water-locator moves downward and drives skeleton part to move down, and moves downward location.
Draining valve assembly 113 provided by the invention can be ball valve, and the valve rod of this ball valve is provided with drain knob 112, and the keying being beneficial to ball valve switches.The present invention can arrange a Decorative Cover 111 in the bottom of cylindrical shell 109 accordingly, and ball valve is arranged on Decorative Cover inside, and is stretched out by drain knob 112 in Decorative Cover 111 outside, to realize operating the keying of ball valve by rotating knob 112.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a fore filter, comprise the copper lid (103) with medium entrance and media outlet, the cylindrical shell (109) with sewage draining exit, the draining valve assembly (113) being arranged at described sewage draining exit place, the first filter screen (107) of being arranged on the filter screen skeleton (108) in described cylindrical shell (109) and being arranged on this filter screen skeleton (108), it is characterized in that, also comprise:
Be arranged in described copper lid (103), and the water-locator (106) be connected with described filter screen skeleton (108), which is provided with point chamber sealing ring (117) and recoil switching hole (1062), described copper lid (103) is provided with point chamber convex hole that can be sealed and matched with described point of chamber sealing ring (117);
Lifting device, described copper lid (103) is stretched out outward in its one end, the other end is connected with described water-locator (106), described lifting device specifically comprises screw rod (114) and screw rod knob (101), described screw rod (114) axial limiting is on described copper lid (103), its end of thread is threaded with described water-locator (106), and its stiff end stretches out described copper lid (103) outward; Described screw rod knob (101) is fixedly connected with the stiff end of described screw rod (114);
Be arranged in described copper lid (103), and the lining (104) be sealed and matched with described water-locator (106), it offers recoil through hole, described point of chamber sealing ring (117) moves to stroke when described point chamber convex hole (116) contacts and recoils that to switch the stroke that hole (1062) moves to when described recoil through hole overlaps equal with described.
2. fore filter as claimed in claim 1, is characterized in that, also comprises the second filter screen (105) being set in described lining (104) outside.
3. fore filter as claimed in claim 2, is characterized in that, be provided with some O RunddichtringOs between described lining (104) and described water-locator (106).
4. fore filter as claimed in claim 1, it is characterized in that, described filter screen skeleton (108) comprising:
Multiple ring skeleton sheets (1081) of axially-aligned, and connecting some braces (1083) of all described ring skeleton sheets (1081), ring skeleton sheet (1081) described in adjacent two forms cannelure (1082).
5. fore filter as claimed in claim 4, is characterized in that, described water-locator (106) bottom has the snap fit (1061) catching on described ring skeleton sheet (1081).
6. fore filter as claimed in claim 5, it is characterized in that, the lower end periphery face of described water-locator (106) is provided with annular catch, and this annular catch forms with the described ring skeleton sheet (1081) being positioned at described filter screen skeleton (108) top the sealing ring holding tank holding described point chamber sealing ring (117).
7. the fore filter as described in claim 1-6 any one, is characterized in that, described draining valve assembly (113) is ball valve, and the valve rod of this ball valve is provided with drain knob (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110162704.5A CN102824773B (en) | 2011-06-16 | 2011-06-16 | Fore filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110162704.5A CN102824773B (en) | 2011-06-16 | 2011-06-16 | Fore filter |
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| CN102824773A CN102824773A (en) | 2012-12-19 |
| CN102824773B true CN102824773B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110162704.5A Active CN102824773B (en) | 2011-06-16 | 2011-06-16 | Fore filter |
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| CN103143196A (en) * | 2013-03-12 | 2013-06-12 | 李娟� | Method and device for purifying sewage |
| CN104906855A (en) * | 2015-06-27 | 2015-09-16 | 许宏娜 | Front-mounted backwash filter |
| CN105457366B (en) * | 2015-12-22 | 2017-11-24 | 湖州恒鑫过滤科技有限公司 | A kind of big flux multicore filter |
| CN105833588B (en) * | 2016-05-30 | 2019-02-05 | 海宁市倍世环保科技有限公司 | A kind of back purge system of filter |
| CN105964032A (en) * | 2016-06-23 | 2016-09-28 | 任杰 | Filter assembly for water heater |
| CN106039802B (en) * | 2016-07-11 | 2018-04-20 | 浙江沁园水处理科技有限公司 | Fore filter |
| CN106178669B (en) * | 2016-07-25 | 2018-09-04 | 玉环美尔斯铜业有限公司 | A kind of fore filter |
| CN108159758A (en) * | 2018-01-18 | 2018-06-15 | 海宁市倍世环保科技有限公司 | The positive inner pressed fore filter rinsed with backwashing function of band |
| CN108635935A (en) * | 2018-05-09 | 2018-10-12 | 海宁美康环保科技有限公司 | A kind of cleaning method of fore filter |
| CN109432839B (en) * | 2018-12-29 | 2021-03-02 | 陆可 | Back-flushing laminated water distributor |
| CN109364540B (en) * | 2018-12-29 | 2021-03-30 | 杭州聚锋科技有限公司 | Back-flushing laminated water distributor |
| CN110404314A (en) * | 2019-07-04 | 2019-11-05 | 海宁市倍世环保科技有限公司 | Fore filter with top control backwashing function |
| CN110433548A (en) * | 2019-07-18 | 2019-11-12 | 厦门润创远工贸有限公司 | One kind rotatably can back flush filter and its control method |
| CN111318067A (en) * | 2020-03-30 | 2020-06-23 | 福建西河卫浴科技有限公司 | Water inlet filter screen pollution discharge structure and shower |
| CN112546695B (en) * | 2020-11-23 | 2022-06-14 | 君品集团有限公司 | Water filtering device |
| CN112546719B (en) * | 2020-11-23 | 2022-04-01 | 远大健康科技(天津)有限公司 | Filter core back flush mechanism based on filter |
| CN113975874A (en) * | 2021-11-10 | 2022-01-28 | 台州浙涛水控科技有限公司 | Back flush filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201855616U (en) * | 2010-10-29 | 2011-06-08 | 宁波埃美柯铜阀门有限公司 | Filter with pressure reduction and backwash functions |
| CN202155093U (en) * | 2011-06-16 | 2012-03-07 | 海宁市水享净水设备有限公司 | Pre-filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102824773A (en) | 2012-12-19 |
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