CN202155093U - Pre-filter - Google Patents
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- CN202155093U CN202155093U CN2011202040151U CN201120204015U CN202155093U CN 202155093 U CN202155093 U CN 202155093U CN 2011202040151 U CN2011202040151 U CN 2011202040151U CN 201120204015 U CN201120204015 U CN 201120204015U CN 202155093 U CN202155093 U CN 202155093U
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- filter screen
- water
- locator
- hole
- filter
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Abstract
The utility model discloses a pre-filter, which comprises a copper cover, a barrel, a drain valve component, a filter screen framework, a first filter screen, a water distributor, a lifting device and a bushing. The copper cover is provided with a medium inlet and a medium outlet. The barrel is provided with a sewage discharge outlet. The drain valve component is arranged at the sewage discharge outlet. The filter screen framework is arranged in the barrel. The first filter screen is arranged on the filter screen framework. The water distributor arranged in the copper cover is connected with the filter screen framework and provided with a dividing seal ring and a back-flush switch hole, and the copper cover is provided with a dividing convex ring capable of being matched with the dividing seal ring. One end of the lifting device extends out of the copper cover while the other end of the lifting device is connected with the water distributor. The bushing arranged in the copper cover is matched with the water distributor hermetically and provided with a back-flush through hole. The travel of the dividing seal ring moving to contact with the dividing convex ring is equal to that of the back-flush switch hole moving to coincide with the back-flush through hole. During the process of switching to a back-flush state, back flush to the outside is realized by the aid of the inner wall of the first filter screen, and accordingly flushing effect of the pre-filter is better.
Description
Technical field
The utility model relates to the filter technology field, particularly a kind of fore filter.
Background technology
Running water arrives before each user through pipe network, has passed through a lot of pipelines, and there are impurity such as a lot of silts, iron rust, floating material in the pipeline the inside, can cause water to pollute like the words of not carrying out filtration treatment.Adopt fore filter on the source that gets into domestic water, to filter, can not only eliminate secondary pollution effectively, reduce the water pollution disease, and can remove solid impurity, protection pipeline security of system reduces the system maintenance expense.
As shown in Figure 1; The fore filter of prior art comprises that both sides are provided with the copper lid 1 of inlet opening and delivery port, the cylindrical shell 3 that is fixedly connected with copper lid 1, are installed in the interior filter screen skeleton 5 of cylindrical shell 3, are fixedly mounted on the screen pack 4 on the filter screen skeleton 5, and cylindrical shell 3 lower ends are fixedly connected with drainage joint 9 and the ball valve 10 of handle 11 is installed.Copper covers inlet opening, 1 right side internal thread and is connected with water supply connector 2, and its left side delivery port internal thread is connected with water out adapter 12, seals by the O RunddichtringO.Filter screen skeleton 5 lower ends are provided with rubber blanket 8, and rubber blanket 8 is located between filter screen skeleton 5 and the drainage joint 9, play a part to cut off and support.
During work, ball valve 10 is in closed condition, and running water gets in the filter screen skeleton 5 through screen pack 4 from water inlet, because filter screen skeleton 5 is hollow, running water flows out from delivery port through filter screen skeleton 5 backs.When this fore filter uses a period of time to clean, only need to open handle 11, open ball valve 10, by directly flushing with tap water screen pack 4, and with sewage by opening the discharge outlet discharge that ball valve 10 forms.
But what present fore filter adopted is the mode of forward flushing, and its cleaning effect is relatively poor.At present, need the good fore filter of a kind of cleaning performance badly.
The utility model content
In view of this, the utility model provides a kind of fore filter, to improve the developing result of its filter screen.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of fore filter; Comprise copper lid, cylindrical shell, the draining valve assembly that is arranged at said sewage draining exit place, be arranged on the filter screen skeleton in the said cylindrical shell and be arranged on first filter screen on this filter screen skeleton, also comprise with sewage draining exit with medium import and media outlet:
Be arranged in the said copper lid, and the water-locator that links to each other with said filter screen skeleton, which is provided with branch chamber sealing ring and recoil switching hole, said copper is covered with the branch chamber convex hole that can be sealed and matched with said minute chamber sealing ring;
Lifting device, one of which end stretch out outside the said copper lid, and the other end links to each other with said water-locator;
Be arranged in the said copper lid; And the lining that is sealed and matched with said water-locator; Offer the recoil through hole on it, the stroke when said minute chamber sealing ring moves to chamber convex hole contact in said minute and said recoil are switched the stroke of hole when moving to said recoil through hole coincidence and are equated.
Preferably, in above-mentioned fore filter, also comprise second filter screen that is set in the said lining outside.
Preferably, in above-mentioned fore filter, be provided with some O RunddichtringOs between said lining and the said water-locator.
Preferably, in above-mentioned fore filter, said lifting device specifically comprises:
Screw rod, its axial limiting covers at said copper, and its end of thread is threaded with said water-locator, and its stiff end stretches out outside the said copper lid;
The screw rod knob, it is fixedly connected with the stiff end of said screw rod.
Preferably, in above-mentioned fore filter, said filter screen skeleton comprises:
A plurality of ring skeleton sheets of axially-aligned, and the some braces that connect all said ring skeleton sheets, adjacent two said ring skeleton sheets form cannelure.
Preferably, in above-mentioned fore filter, said water-locator bottom has the trip that catches on said ring skeleton sheet.
Preferably, in above-mentioned fore filter, the lower end outer peripheral face of said water-locator is provided with annular catch, and this annular catch forms the sealing ring holding tank that holds said minute chamber sealing ring with the said ring skeleton sheet that is positioned at said filter screen skeleton top.
Preferably, in above-mentioned fore filter, said draining valve assembly is a ball valve, and the valve rod of this ball valve is provided with the draining knob.
Can find out from above-mentioned technical scheme; The fore filter that the utility model provides comprises copper lid, the cylindrical shell with sewage draining exit, the draining valve assembly that is arranged at said sewage draining exit place with medium import and media outlet, is arranged on the filter screen skeleton in the said cylindrical shell and is arranged on first filter screen on this filter screen skeleton; Also comprise: be arranged in the said copper lid; And the water-locator that links to each other with said filter screen skeleton; Which is provided with branch chamber sealing ring and switch the hole with recoil, said copper is covered with the branch chamber convex hole that can be sealed and matched with said minute chamber sealing ring; Lifting device, one of which end stretch out outside the said copper lid, and the other end links to each other with said water-locator; Be arranged in the said copper lid; And the lining that is sealed and matched with said water-locator; Offer the recoil through hole on it, the stroke when said minute chamber sealing ring moves to chamber convex hole contact in said minute and said recoil are switched the stroke of hole when moving to said recoil through hole coincidence and are equated.
Water-locator is provided with branch chamber sealing ring and switches the hole with recoil; Copper is covered with the branch chamber convex hole that can be sealed and matched with minute chamber sealing ring; Promptly when water-locator moves to branch chamber sealing ring and contacts with branch chamber convex hole; Divide the chamber sealing ring and divide chamber convex hole fitted seal formation two cavitys up and down, make the liquid medium by medium import entering can not directly get into the position of the filter screen skeleton and first filter screen, promptly liquid medium can not be inner by first filter screen outside entering, first filter screen.One end of lifting device stretches out outside the copper lid, and the other end links to each other with water-locator, can realize moving axially of water-locator through this lifting device, and control divides chamber sealing ring and the sealing and the cut-out that divide the chamber convex hole then.Lining and said water-locator are tightly connected; Offer the recoil through hole on it; Branch chamber sealing ring moves to said minute stroke and said recoil when the chamber convex hole contacts and switches the stroke that the hole moves to when overlapping with said recoil through hole and equate; Make to be tightly connected that when promptly being cut into up and down two cavitys by minute chamber sealing ring and branchs chamber convex hole, the recoil through hole just in time overlaps with the switching hole of recoiling at minute chamber convex hole and branchs chamber sealing ring; Because under the effect of hydraulic pressure, the screen pack backwash is realized in the inboard infiltration of water first screen pack outside.
The utility model can realize just washing the switching with backwash through pulling apparatus and water-locator; Lifting through pulling apparatus; Divide the chamber sealing ring to contact applying, make outer two the mutual obstructed cavitys (ending) that form of the filter screen of winning by minute chamber sealing ring and branch chamber convex hole with branch chamber convex hole; Get into liquid medium through the medium import; Arrive first branch chamber sealing ring and the upper end of branch chamber convex hole by side; This moment, the recoil through hole and the switching of the recoil on the water-locator hole of lining overlapped, and liquid medium directly gets in first filter screen through recoil through hole and recoil switching hole.Through springing back over branch chamber sealing ring and the lower end of branch chamber convex hole by side, directly clean the first filter screen inwall, carry out back flush laterally by the first filter screen inwall.Water-locator moves downward certain distance, and UNICOM forms a cavity up and down, and the hole dislocation is switched in lining recoil port and said recoil, and current directly wash the first screen pack outer wall and realize just washing.Instead with the switching of just working, screen pack flushing cleaning is more thorough.
In a preferred version of the utility model; Be arranged with second filter screen in the lining outside; Get into liquid medium through the medium import; Arrive first branch chamber sealing ring and the upper end of branch chamber convex hole by side, the recoil through hole of lining and the recoil on the water-locator at this moment switched the hole and overlapped, and liquid medium directly gets in first filter screen through preliminary filtration back through second filter screen on the lining.Through springing back over branch chamber sealing ring and the lower end of branch chamber convex hole by side, directly clean the first filter screen inwall, reach the effect of secondary flushing.The utility model is owing to be provided with second filter screen; Can make the liquid medium of the recoil first filter screen inwall filter through preliminary; With the elimination partial impurities; Thereby wash the liquid of liquid medium for cleaning of first filter screen, can avoid the secondary pollution of first filter screen, further improve the developing result of first filter screen.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model.
Fig. 1 is the sectional structure sketch map of this existing fore filter;
The structural representation of the fore filter that Fig. 2 provides for the utility model embodiment;
The sectional structure sketch map of fore filter during operate as normal that Fig. 3 provides for the utility model embodiment;
The sectional structure sketch map of fore filter during back flush that Fig. 4 provides for the utility model embodiment;
The sectional structure sketch map of fore filter when the forward that Fig. 5 provides for the utility model embodiment washes;
The sectional structure sketch map of the fore filter that removes cylindrical shell and copper lid that Fig. 6 provides for the utility model embodiment;
The structural representation of the water-locator that Fig. 7 provides for the utility model embodiment;
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, second filter screen; 106, water-locator; 107, first filter screen; 108, filter screen skeleton; 109, cylindrical shell; 110, sealing ring; 111, cover of upholstery; 112, draining knob; 113, draining valve assembly; 114, screw rod; 115, O RunddichtringO; 116, divide the chamber convex hole; 117, divide the chamber sealing ring; 1061, trip; 1062, the hole is switched in recoil; 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.
The specific embodiment
The utility model discloses a kind of fore filter, to improve the developing result of its filter screen.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 2-Fig. 7, the structural representation of the fore filter that Fig. 2 provides for the utility model embodiment; The sectional structure sketch map of fore filter during operate as normal that Fig. 3 provides for the utility model embodiment; The sectional structure sketch map of fore filter during back flush that Fig. 4 provides for the utility model embodiment; The sectional structure sketch map of fore filter when the forward that Fig. 5 provides for the utility model embodiment washes; The sectional structure sketch map of the fore filter that removes cylindrical shell and copper lid that Fig. 6 provides for the utility model embodiment; The structural representation of the water-locator that Fig. 7 provides for the utility model embodiment.
The fore filter that the utility model provides comprises copper lid 103, the cylindrical shell 109 with sewage draining exit, the draining valve assembly 113 that is arranged at the sewage draining exit place with medium import and media outlet, is arranged on the filter screen skeleton 108 in the cylindrical shell 109 and is arranged on first filter screen 107 on this filter screen skeleton 108.During operate as normal, the sewage draining exit on the cylindrical shell 109 is ended by draining valve assembly 113, only when outwards washing by water, just passes through draining valve assembly 113 with the sewage draining exit conducting.The focusing on of the utility model also comprises water-locator 106, lifting device and lining 104.Wherein, water-locator 106 is arranged in the copper lid 103, and links to each other with filter screen skeleton 108, through moving up and down this water-locator 106, but the corresponding mobile filter screen skeleton 108 and first filter screen 107.Water-locator 106 is provided with branch chamber sealing ring 117 and switches hole 1062 with recoil; Copper lid 103 is provided with the branch chamber convex hole 116 that can be sealed and matched with minute chamber sealing ring 117; Promptly when a minute chamber sealing ring 117 moves to convex hole 116 positions, branch chamber, can be sealed and matched with 116 formation of minute chamber convex hole.
One end of lifting device stretches out outside the copper lid 103, and the other end links to each other with water-locator 106, but stretches in moving up and down of copper lid 103 an end control corresponding water-locator 106 outward outward through this lifting device, to realize the switching of forward work and back flush.When water-locator 106 moves upward; Branch chamber convex hole 116 on sealing ring 117 positions, branch chamber and the copper lid 103 is sealed and matched; This time-division chamber sealing ring 117 forms two cavitys up and down; Water flows into filter screen skeleton 108 inboards, flows to first screen pack, 107 inboards, and water is realized recoil from first screen pack, the 107 inboard infiltration outsides; When water-locator 106 moved downward, branch chamber sealing ring 117 staggered with convex hole 116 positions, branch chamber on the copper lid 103, divides chamber sealing ring 117 to be communicated with up and down and forms a cavity, and current directly wash 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 be opened, so that the sewage after the flushing can be discharged by sewage draining exit.The operate as normal water (flow) direction equals forward flushing water flow path direction, draining valve assembly 113 is closed get final product.
The dynamic structure and the operation principle thereof of the utility model are described below:
As shown in Figure 3, when the fore filter that provides at the utility model was in normal operating conditions, this moment, the draining valve assembly 113 was in closed condition, divided chamber convex hole 116 not contact with branch chamber sealing ring 117.Branch chamber sealing ring 117 is positioned at the downside of branch chamber convex hole 116 in the present embodiment; Therefore cover the liquid medium that the medium import in 103 left sides gets into (running water for example by copper; Certainly the application scenarios according to the potential quality filter can also be other liquid; For the ease of understanding, replace liquid medium with running water below) can get into the outside of first filter screen 107 directly along dividing chamber convex hole 116 and the space of dividing chamber sealing ring 117.Running water enters into the inside of first filter screen 107 through the filtration of first filter screen 107, and the inner chamber of edge first filter screen 107 is upwards mobile, and through the inner chamber of water-locator 106, and finally by the inner chamber outflow of water-locator 106, the media outlet that covers 103 right sides along copper is discharged.
As shown in Figure 4; When the fore filter that provides at the utility model is in reverse bath state; Draining valve assembly 113 is in opening state at this moment; Through the lifting of pulling apparatus, divide chamber sealing ring 117 to contact applying with branch chamber convex hole 116, make the outside of the filter screen 107 of winning form two mutual obstructed cavitys (ending) by minute chamber sealing ring 117 and branch chamber convex hole 116; The medium import of covering 103 left sides through copper gets into running water; Arrive first branch chamber sealing ring 117 and the upper end of branch chamber convex hole 116 by side; This moment, the recoil through hole and the switching of the recoil on the water-locator 106 hole 1062 of lining 104 overlapped, and running water directly gets into the inside of first filter screen 107 through recoil through hole and recoil switching hole 1062.Because the hydraulic pressure effect flows to and divides chamber sealing ring 117 and divide the lower end of chamber convex hole 116 by side, liquid is outwards got express developed from first filter screen, 107 inwalls, reaches the effect of backwash, and the sewage after the cleaning is discharged by sewage draining exit.
In order further to optimize technique scheme, the utility model also can comprise second filter screen 105 that is set in lining 104 outsides.Get into running water through the medium import; Arrive first branch chamber sealing ring 117 and the upper end of branch chamber convex hole 116 by side; This moment, the recoil through hole and the switching of the recoil on the water-locator 106 hole 1062 of lining 104 overlapped, and running water directly gets in first filter screen 107 after tentatively filtering through second filter screen 105 on the lining 104.Sealing ring 117 ends the lower end of side with dividing chamber convex hole 116 through undue chamber, and liquid is outwards got express developed from first filter screen, 107 inwalls, reaches the effect of backwash.
The utility model is owing to be provided with second filter screen 105; Can make the running water of recoil first filter screen 107 inwalls filter through preliminary; With the elimination partial impurities; Thereby wash the liquid of running water for cleaning of first filter screen 107, can avoid the secondary pollution of first filter screen 107, further improve the filter effect of first filter screen 107.
Be provided with some O RunddichtringOs 115 between lining 104 and the water-locator 106, to keep the sealing between lining 104 and the 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, move on the water-locator 106, and 3 O RunddichtringOs 115 are followed and moved up; This moment, 3 O RunddichtringOs 115 were divided into two sections districts; The recoil through hole of lining 104 and the recoil on the water-locator 106 simultaneously switched hole 1062 and overlapped, and water can only flow into from overlapping inlet, can realize recoil; Water-locator moves down 3 O RunddichtringOs 115 and follows down mobile; This moment, the recoil through hole and the switching of the recoil on the water-locator 106 hole 1062 of lining 104 misplaced; 3 O RunddichtringOs 115 through hole that will recoil switches the hole with recoil and is divided into two sections districts; 3 O RunddichtringOs 115, sealing recoil port switches the hole with recoil, and water normally washes outside first screen pack.
The lifting device that the utility model provides can specifically comprise screw rod 114 and screw rod knob 101.Wherein, screw rod 114 axial limitings are on copper lid 103, and its end of thread 1141 is threaded with water-locator 106, and its stiff end stretches out copper and covers outside 103.Through screw rod 114 axial limitings are covered on 103 at copper; Therefore can limit moving axially of screw rod 114; And can only rotate, through the rotation of screw rod 114, can spur water-locator 106 accordingly; Because therefore water-locator and filter screen skeleton 108 can mention the filter screen bracket 108 and first filter screen 107 accordingly.Through changing the rotation direction of screw rod 114, but the moving up and down of corresponding implementation water-locator 106, thus realize the switching of duty and reverse bath state.For the ease of the rotation of realization screw rod 114, but the screw rod knob 101 that corresponding setting one is fixedly connected with the stiff end of screw rod 114, and 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 cooperating of the operation of hand; Screw rod knob 101 also can be column construction, and at the outer surface of this column construction the friction lines that improves frictional force is set, and is beneficial to being affectedly bashful of hand.
As shown in Figure 5, the filter screen skeleton 108 that the utility model provides can specifically comprise a plurality of ring skeleton sheets 1081 of axially-aligned, and the some braces 1083 that connect all ring skeleton sheets 1081, and adjacent two ring skeleton sheets 1081 form cannelure 1082.As shown in Figure 6, water-locator 106 bottoms have the trip 1061 that catches on ring skeleton sheet 1081, join through the trip 1061 and the card of ring skeleton sheet 1081, and realization filter screen skeleton 108 is connected with water-locator 106.The lower end outer peripheral face of water-locator 106 is provided with annular catch, and this annular catch forms the sealing ring holding tank that holds branch chamber sealing ring 117 with the ring skeleton sheet that is positioned at filter screen skeleton 108 tops 1081, and branch chamber sealing ring 117 is arranged in the sealing circle holding tank.The outer peripheral face on water-locator 106 tops is provided with O RunddichtringO holding tank 1065, and this O RunddichtringO holding tank 1065 is used to place 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 through some floors; Form water flow grooves 1064 between adjacent two floors, running water is flowed out by this water flow grooves 1064 and passes through outside the media outlet outflow filter.
The lower end of filter screen skeleton 108 is provided with sealing gasket 110, sealing gasket 110 functions: 1. support first screen pack, and the 2. sealing first screen pack lower port, 3. water-locator moves downward and drives skeleton part and move down, and moves downward the location.
The draining valve assembly 113 that the utility model provides can be ball valve, and the valve rod of this ball valve is provided with draining knob 112, and the keying that is beneficial to ball valve is switched.The utility model can be provided with a cover of upholstery 111 accordingly in the bottom of cylindrical shell 109, and ball valve is arranged on cover of upholstery inside, and draining knob 112 is stretched out in cover of upholstery 111 outsides, realizing the keying operation to ball valve through rotation knob 112.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (8)
1. fore filter; Comprise copper lid (103), cylindrical shell (109), the draining valve assembly (113) that is arranged at said sewage draining exit place, be arranged on the filter screen skeleton (108) in the said cylindrical shell (109) and be arranged on first filter screen (107) on this filter screen skeleton (108) with sewage draining exit with medium import and media outlet; It is characterized in that, also comprise:
Be arranged in the said copper lid (103); And the water-locator (106) that links to each other with said filter screen skeleton (108); Which is provided with branch chamber sealing ring (117) and hole (1062) is switched in recoil, said copper lid (103) be provided with can with the said minute branch chamber convex hole that be sealed and matched of chamber sealing ring (117);
Lifting device, one of which end stretch out outside the said copper lid (103), and the other end links to each other with said water-locator (106);
Be arranged in the said copper lid (103); And the lining (104) that is sealed and matched with said water-locator (106); Offer the recoil through hole on it, said minute chamber sealing ring (117) stroke of moving to said minute chamber convex hole (116) when contact and said recoil are switched the stroke of hole (1062) when moving to said recoil through hole coincidence and are equated.
2. fore filter as claimed in claim 1 is characterized in that, also comprises second filter screen (105) that is set in said lining (104) outside.
3. fore filter as claimed in claim 2 is characterized in that, is provided with some O RunddichtringOs between said lining (104) and the said water-locator (106).
4. fore filter as claimed in claim 1 is characterized in that, said lifting device specifically comprises:
Screw rod (114), its axial limiting covers on (103) at said copper, and its end of thread is threaded with said water-locator (106), and its stiff end stretches out outside the said copper lid (103);
Screw rod knob (101), its stiff end with said screw rod (114) is fixedly connected.
5. fore filter as claimed in claim 1 is characterized in that, said filter screen skeleton (108) comprising:
A plurality of ring skeleton sheets (1081) of axially-aligned, and the some braces (1083) that connect all said ring skeleton sheets (1081), adjacent two said ring skeleton sheets (1081) form cannelure (1082).
6. fore filter as claimed in claim 5 is characterized in that, said water-locator (106) bottom has the trip (1061) that catches on said ring skeleton sheet (1081).
7. fore filter as claimed in claim 6; It is characterized in that; The lower end outer peripheral face of said water-locator (106) is provided with annular catch, this annular catch and the said ring skeleton sheet (1081) that is positioned at said filter screen skeleton (108) top form hold said minute the chamber sealing ring (117) the sealing ring holding tank.
8. like the described fore filter of claim 1-7, it is characterized in that said draining valve assembly (113) is a ball valve, and the valve rod of this ball valve is provided with draining knob (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202040151U CN202155093U (en) | 2011-06-16 | 2011-06-16 | Pre-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202040151U CN202155093U (en) | 2011-06-16 | 2011-06-16 | Pre-filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202155093U true CN202155093U (en) | 2012-03-07 |
Family
ID=45762744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202040151U Expired - Lifetime CN202155093U (en) | 2011-06-16 | 2011-06-16 | Pre-filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202155093U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824773A (en) * | 2011-06-16 | 2012-12-19 | 海宁市水享净水设备有限公司 | Prefilter |
| CN102989219A (en) * | 2012-10-17 | 2013-03-27 | 宁波长壁流体动力科技有限公司 | Filter cylinder assembly of high-pressure back-washing filter station |
| CN103372341A (en) * | 2012-04-17 | 2013-10-30 | 3M创新有限公司 | Back-flush-type preposed water filter |
| CN103372340A (en) * | 2012-04-17 | 2013-10-30 | 3M创新有限公司 | Back-flush-type water filter |
| CN106178669A (en) * | 2016-07-25 | 2016-12-07 | 玉环美尔斯铜业有限公司 | A kind of fore filter |
| CN106422463A (en) * | 2016-10-26 | 2017-02-22 | 海宁市倍世环保科技有限公司 | Pre-filter assembly capable of being back washed |
| 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 |
-
2011
- 2011-06-16 CN CN2011202040151U patent/CN202155093U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824773B (en) * | 2011-06-16 | 2015-09-09 | 海宁市水享净水设备有限公司 | Fore filter |
| CN102824773A (en) * | 2011-06-16 | 2012-12-19 | 海宁市水享净水设备有限公司 | Prefilter |
| CN103372340B (en) * | 2012-04-17 | 2016-01-13 | 3M创新有限公司 | Back-flush-type water filter |
| CN103372340A (en) * | 2012-04-17 | 2013-10-30 | 3M创新有限公司 | Back-flush-type water filter |
| CN103372341A (en) * | 2012-04-17 | 2013-10-30 | 3M创新有限公司 | Back-flush-type preposed water filter |
| CN103372341B (en) * | 2012-04-17 | 2016-02-17 | 3M创新有限公司 | The preposition water filter of back flush type |
| CN102989219B (en) * | 2012-10-17 | 2014-10-08 | 宁波长壁流体动力科技有限公司 | Filter cylinder assembly of high-pressure back-washing filter station |
| CN102989219A (en) * | 2012-10-17 | 2013-03-27 | 宁波长壁流体动力科技有限公司 | Filter cylinder assembly of high-pressure back-washing filter station |
| CN106178669A (en) * | 2016-07-25 | 2016-12-07 | 玉环美尔斯铜业有限公司 | A kind of fore filter |
| CN106422463A (en) * | 2016-10-26 | 2017-02-22 | 海宁市倍世环保科技有限公司 | Pre-filter assembly capable of being back washed |
| CN106422463B (en) * | 2016-10-26 | 2018-08-28 | 海宁市倍世环保科技有限公司 | The prefilter device assembly that can be backwashed |
| 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 |
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