CN101564610A

CN101564610A - Backwashing water purifier

Info

Publication number: CN101564610A
Application number: CNA2008100949209A
Authority: CN
Inventors: 杜也兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-27
Filing date: 2008-04-27
Publication date: 2009-10-28

Abstract

The invention relates to the water treatment industry, in particular to deep filtration and purification of drinking water. The invention discloses a backwashing water purifier which comprises a base and a filter element, wherein a double interface water path switcher and a sealing gland are also arranged in the base; the double interface water path switcher comprises an upper disk, a middle disk and a lower disk which are respectively provided with a switching water slot; the sealing gland is in contact and matched with the upper disk, the middle disk, the lower disk and the base; the water path switcher respectively comprises 5 to 8 pairs of equally divided switching positions; the switching water slot of the upper disk is respectively communicated with independent water channels A, B and C; the water slot of the lower disk is communicated with the water slot of the filter element; the middle disk which is positioned between the upper disk and the lower disk can rotate to simultaneously carry out sealing switching to the two switching interfaces; and the communicated relations among the switching water slots of the three disks can be changed along with the rotation of the middle disk. The invention has the advantages of simple and practical structure, low cost, easy control of the assembling quality, visual backwashing conditions, good effect and good environmental adaptability.

Description

Backwashing water purification apparatus

Technical field

The present invention is relevant with water treatment field, is specifically related to depth-type filtration, the purification aspect of drinking water.

Background technology

At present, water purifier uses more universal at home.When making water, adopt water purifier in the water and hydraulic pipeline cause that impurity etc. carries out depth-type filtration, has protected user's health preferably.Yet along with the popularization of water purifier, they have also progressively come out in the defective and the deficiency of application facet.The filter core of water purifier in use for some time, the filtrate outer surface that stopped up gradually and be adsorbed on by impurity of filter core filtrate causes filtration, adsorption effect obviously to descend, and, along with the impurity that filter core is retained down is more and more, tend to make " pollution " degree of this filter core impurity to surpass " pollution " degree of drinking water itself, thereby make filter core become new " pollution " source.Particularly some adopt PP fiber melt-blowing filter cores, milipore filter, NF membrane, reverse osmosis membrane than fine filter core because mesh size is few, be easy to produce clogging during use, influence filter element life.For this reason, these filter cores adopt the cross flow type filtration usually, in filter element filtering layer water inlet end one side, are provided with a discharge outlet, are used to wash.But because discharge outlet and water inlet are in the same side of filtering layer, therefore to the flushing of filtering layer, poor effect is though some high-grade water treatment facilities is changed the direction of a stream of water by electric-control system and multichannel magnetic valve, realization is gone out the impurity that is trapped in the filter core by the back flush of delivery port to water inlet.But owing to need to be equipped with power-supply system, electronic control system, timing means, a plurality of magnetic valves etc., cause price very high, though so this class water purifier equipment result of use relatively good, price is very high, is difficult for promoting.And, the forward and backward level of the existing water purifier screen cloth type filtrates that adopt more, intergrade is the structure of granular pattern filtrate, adopt impurity that contrary omnidistance recoil pattern is difficult to middle and infiltration are deposited in back level screen cloth by behind the multi-stage filter core by the water inlet discharging thoroughly, the phenomenon that interstitial impurity is not gone out by the forward and reverse row of flushing back and forth usually appears; And the water purifier that does not have " recoil " function because the user had both worried the clean-up effect very fast poor stability that fails, is afraid of the excessive impurity trapped of filter core again and is produced secondary pollution, and is reluctant to use.In addition, water purifier function singleness, conformability are poor.Generally be the pattern of low discharge, fine filtering, only limit to drinking water, lack to take into account and drink and wash bifunctional type.Often price height, volume are big and possess the water purifier of washing flow.Above-mentioned defective and deficiency cause water purifier to be difficult to obtain more extensive popularizing.

Summary of the invention

The technical problem that the present invention mainly solves provides a kind of simple and practical backwashing water purification apparatus, to overcome above-mentioned defective and deficiency.

The present invention includes support, filter core, comprise also that in support respectively having the upper, middle and lower of switching the mouth of a river by three coils two interfaces waterway switcher and the sealing gland that constitutes; The sealing gland is in contact with one another with upper, middle and lower dish and support and cooperates; This waterway switcher has 5～8 equity branch switching positions respectively, and switching mouth of a river of dish is communicated with independent waterway channel A, B, C respectively on it; The mouth of a river of its lower wall is communicated with the mouth of a river of filter core; Mid-game between upper and lower dish can be rotated two interface switching are sealed switching simultaneously; Respectively switching mouth of a river connected relation each other on three dishes can change with the rotation of mid-game.

The upper and lower dish outside of described waterway switcher respectively is provided with the leak proof seal part.Guarantee the sealing between waterway switcher upper lower burrs and support and the sealing gland.

Dish has on the five five equilibrium switching positions position adjacent and all be communicated with the water inlet and the recoil mouth of a river of waterway channel A and be communicated with the delivery port of waterway channel B on the described waterway switcher, and the discharge outlet that is communicated with waterway channel C; Have corresponding with the last dish mouth of a river respectively on the described lower wall and be communicated with the entery and delivery port of two mouthfuls of filter cores, and the corresponding recoil mouth of a river of going up the dish recoil mouth of a river and being communicated with delivery port, the discharge outlet connection water inlet corresponding with last dish discharge outlet; Described mid-game entery and delivery port and the corresponding connection of upper and lower dish entery and delivery port; The discharge outlet and the water inlet angle that are closed by upper and lower disk seal are 144 °.During operation, running water passage A by water enters waterway switcher and filter core is handled, and channel B flows out by water again.During recoil,, make water inlet switch to recoil position, the mouth of a river by rotating the mid-game of waterway switcher, running water just can to two mouthfuls of filter cores by after the cleaning that recoils forward, and the impurity that recoils out got rid of by clear water faucet.

In addition, of the present invention pair of interface, five five equilibrium switching position waterway switchers can expand to the waterway switcher at six or seven five equilibrium switching positions, two interfaces, mutual handoff relation between its switching principle and the mouth of a river and five five equilibrium switching position pattern basically identicals have just increased some useless rooms.

Have on the dish eight equal parts switching position on the described waterway switcher: the water inlet that is communicated with waterway channel A and two recoil mouths of a river; The delivery port that is communicated with waterway channel B and two discharge outlet that are communicated with waterway channel C.Described lower wall water inlet is corresponding with last dish water inlet, is communicated with the water inlet of second discharge outlet and three mouthfuls of filter cores; The lower wall delivery port is corresponding with last dish delivery port, connects the first other recoil mouth of a river of water inlet and the delivery port of three mouthfuls of filter cores; First discharge outlet that is communicated with the middle mouth of a river of this filter core is communicated with the second recoil mouth of a river, and coils the recoil passage that all mouths of a river constitute three mouthfuls of filter core first filtering layers with upper, middle and lower.Described mid-game entery and delivery port respectively with the corresponding connection of upper and lower dish entery and delivery port; The mid-game discharge outlet and the water inlet angle that are closed by upper and lower disk seal are 135 °.Only when mid-game turned to first and second recoil position, this draining eloquence can be communicated with first and second discharge outlet of upper and lower dish respectively.During operation, running water passage A first and second filtering layer of entering waterway switcher and filter core is by water handled, and channel B flows out by water again.During recoil,, make water inlet switch to first and second recoil position, the mouth of a river respectively by rotating the mid-game of waterway switcher, running water just can be in succession to two filtering layers of three mouthfuls of filter cores by after the cleaning that recoils step by step forward.

On the basis of above-mentioned eight equal parts switching position technical scheme, the mouth of a river distribution pattern that can develop and make new advances.Change upper and lower dish second discharge outlet into the second recoil mouth of a river, on the upper and lower dish position of middle position between corresponding mid-game delivery port and the discharge outlet, be equipped with second discharge outlet, and the water inlet of lower wall, first discharge outlet are communicated with second discharge outlet and second recoil mouthful respectively.Thereby constituted the recoil passage of another three mouthfuls of filter core first filtering layers, realized corresponding two-way recoil pattern.

The water purification exhalant canal B of above-mentioned final stage filter core can be communicated with discharge water paths C.

Have a plurality of waterway switchers on the described support and be connected, and the filter core that each waterway switcher is connected is connected between total support inlet and outlet pipe interface with correspondence before and after waterway channel A, B, the C; The waterway channel A that is positioned at fine filtering filter core water inlet end goes back the preposition paths D that purifies waste water of connecting band valve when connecting waterway channel B.

Described each support waterway channel A, B, C can a plurality of head and the tail correspondences connect, and the filter core that will connect separately are connected between total inlet and outlet pipe interface.

There is concave-convex type pipeline mating interface described each support waterway channel A, B, C front and rear end, can connect inserting by a plurality of head and the tail, with seal, locking member sealing and fixing.

Described each support is provided with the preposition paths D that purifies waste water of band concave-convex type fit tube pipeline joint in addition, and its concave-convex type fit tube pipeline joint is parallel with the concave-convex type fit tube pipeline joint of waterway channel A, B, and can connect inserting together; The preposition paths D that purifies waste water of band valve is communicated with fine filter core support water inlet waterway channel A.

Described elementary support front end concave-convex type fit tube pipeline joint with always be connected inserting into and out of pipeline and preceding pipeline interface, and with seal, locking member sealing and fixing.

In multimachine seat pattern of the present invention, described support is provided with the preposition paths D that purifies waste water of band concave-convex type fit tube pipeline joint.Its concave-convex type fit tube pipeline joint axis is parallel with the axis of the concave-convex type fit tube pipeline joint of waterway channel A, B, and can be together to inserting.This is preposition purifies waste water paths D with after fine filter core support water inlet waterway channel A and preposition support waterway channel B are communicated with, and the preposition paths D that purifies waste water that can also the follow-up support of continued access is so that installation filtration and warning device.

Described sealing gland both can be arranged on the waterway switcher lower wall outside, the outside that also can dish disposed thereon: for the former, the filter core entery and delivery port is by the through channel on the sealing gland, contacts with the waterway switcher lower wall mouth of a river to be connected; For the latter, then realize the sealing butt joint by the through channel that is arranged on the support, guarantee that filter core and the original connected relation of lower wall are constant, thereby do not influence original function.

Filter core of the present invention both can be single filtering layer pattern at two mouths of a river, also can adopt the pattern of two filtering layers at three mouths of a river, can also become the tandem mode of two two mouthfuls of filter cores.

The present invention compares with existing water purifier and has the following advantages: the simple structure practicality, with low cost, assembly quality is controlled easily, repercussion effect good, and has environmental suitability preferably.Switching by two interfaces waterway switcher, can be implemented in and do not change water purifier inlet and outlet pipe adapter present situation, and keep under support and the motionless situation of filter core, the single or multiple lift filter core is carried out successively or recoil cleaning more up hill and dale step by step, impurity successively or is step by step discharged, overcome the deficiency of existing water purifier.The preposition paths of purifying waste water can provide the big flow of micro-filtration level to purify waste water to satisfy the washing needs.In view of the present invention has hierarchical layered back flush, discharge function, therefore supporting filter core can carry out complicated filtering layer of multiple function or filtrate combination, and the forward and reverse obstruction screen cloth of filtrate when not worrying recoiling, thereby can improve clean-up effect greatly, prolong filter core, particularly high filtration grade filter element life effectively reduces the possibility of secondary pollution.Simultaneously, in the recoil process, the impurity that each filtering layer dams can be emitted by clear water faucet, is convenient to the user and directly observes the cleaning situation.

Description of drawings

Fig. 1 is that the present invention adopts two interfaces five five equilibrium waterway switchers, two mouthfuls of filter core operation principle schematic diagrames.

Fig. 2 is the five five equilibrium switching position waterway switcher switching principle schematic diagrames that the present invention adopts.

Fig. 3 is second kind of mouth of a river of five five equilibrium switching position waterway switchers switching schematic diagram of arranging.

Fig. 4 is the third mouth of a river of five five equilibrium switching position waterway switchers switching schematic diagram of arranging.

Fig. 5 is that the present invention adopts eight equal parts switching position waterway switcher, unidirectional switching principle schematic diagram.

Fig. 6 is that the present invention adopts eight equal parts switching position waterway switcher, two-way switching principle schematic diagram.

Fig. 7 is that the present invention adopts three grades of supports, four waterway channels, head and the tail to inserting the connection mode principle schematic.

The specific embodiment

Fig. 1 shows the optimum embodiment of waterway switcher of the present invention.Upper, middle and

lower dish

1,2,3 two interfaces waterway switcher that constitutes and the sealing glands 7 that switched the mouth of a river by three bands are arranged in the support 4.Sealing gland 7 is pressed on upper, middle and

lower dish

1,2,3 and support 4, is in contact with one another to cooperate the sealing of guaranteeing two interface switching.This waterway switcher has 5～8 equity branch switching positions, and switching mouth of a

river

11,14 of dish 1 is communicated with the waterway channel A of support 4 on it.The mouth of a river 12 is communicated with waterway channel B.The mouth of a river 13 is communicated with waterway channel C.The mouth of a

river

31,32 of its lower wall 3 is communicated with the entery and delivery port of filter core 9; The mouth of a

river

21,22 of its mid-game 2 is corresponding with the entery and

delivery port

11,12,31,32 of upper and lower dish, the mouth of a river 23 closed by upper and lower disk seal and with the water inlet angle be 144 °.The handle of swing rotation set 5 drives mid-game 2 and rotates a five equilibrium switching position, and upper and lower two interface switching are sealed switching simultaneously.The mouth of a river connected relation each other that respectively switches on three dishes also changes with the rotation of mid-game 2.The upper and lower dish outside at waterway switcher can respectively be provided with leak proof seal part 6, with the sealing between further assurance waterway switcher and support and the sealing gland.The two waterway channel interfaces that have inside and outside connection on the sealing gland 7, its medial extremity can be communicated with 31,32 sealings of waterway switcher lower wall entery and delivery port; Its outboard end can be fastenedly connected with two mouthfuls of filter cores 9 that are complementary and seal with sealing ring 8.In order to be connected with the filter core coupling of central plate-like shaped annular water gap, change lower wall delivery port 32 into blind hole up, be communicated with the blind hole down that is positioned at dish central authorities, and be connected with sealing gland 7 contact fitted seal with central plate-like shaped annular water gap, adopt the filter core of plate-like shaped annular water gap with cooperation, thereby simplified the loading and unloading of filter core and the structure that is connected of sealing gland.

In water purifier when operation,, running water enters filter core by the waterway channel A of support 4 through the

water inlet

11,21,31 of waterway switcher upper, middle and lower dish and filter core 9 water inlets and treats the filter district.At this moment, mid-game 2 floss holes 23 are sealed by upper and lower dish diverter surface.The mouth of a

river

14,34 of upper and lower dish is also sealed by mid-game 2 diverter surfaces.Under the hydraulic pressure effect, running water enters purifying area after by filter core filtering layer filtration treatment, and through being positioned at the

delivery port

32,22,12 of filter core central authorities' delivery port and three dishes, and waterway channel B flows out, and reaches the filtration, purification effect.After filter core uses a period of time, impurities accumulation is to a certain amount of in the water that filter course is held back, and the activated carbon filter material surface can make the mid-game 2 of waterway switcher forward the recoil switching position to by swing handle when descend being needed recoil to clean by the organic impurities adsorption effect.At this moment, running water is by the last dish recoil mouth of a river 14, through mid-game water inlet 21, the lower wall recoil mouth of a river 34 and delivery port 32, enter filter core 9 delivery ports, under the hydraulic pressure effect to the filtering layer cleaning that recoils, the impurity that infiltration is deposited in the filtering layer is oppositely gone out, and through the filter core water inlet, down, in, the

floss hole

33,23,13 and the waterway channel C that go up dish flow out.More during renew cartridge, only need to rotate a filter core and just can unload, newer filter core retrograde precession is loaded on the support.

Fig. 2 shows and two mouthfuls of waterway switchers that filter core is corresponding, adopts five five equilibrium switching positions to switch embodiment.Water inlet 11, the recoil mouth of a river 14 and delivery port 12 that is communicated with waterway channel B that is communicated with waterway channel A and the discharge outlet 13 that is communicated with waterway channel C are arranged on the five five equilibrium switching positions of last dish 1.On the lower wall switching position, entery and

delivery port

31,32 is communicated with the entery and delivery port of two mouthfuls of filter cores; The discharge outlet 33 that is communicated with water inlet 31 is corresponding with 13; The recoil mouth of a river 34 is communicated with delivery ports 32, and constitutes the recoil passage of two mouthfuls of filter core filtering layers with the mouth of a

river

14,21,32,31,33,23,13.Mid-game discharge outlet 23 is 144 ° with the water inlet angle.This discharge outlet 23 only when mid-game turns to the recoil position, just can be communicated with upper and lower dish discharge outlet 13,33.At this moment, coiling entery and

delivery port

11,12 on is closed.

In the above-described embodiment, also lower wall delivery port 32 directly axially can be connected, and contact cooperation with sealing gland 7; The sealing gland that is mated both can be set to the axial perforation waterway channel corresponding with lower wall delivery port 32 and be connected with two mouthfuls of filter core fitted seal, also can be set to its inner corresponding lower wall delivery port 32, its outer end and move to the waterway channel of dish central authorities and mate with filter core and be connected, thereby simplify the loading and unloading of filter core and the structure that is connected of sealing gland with central delivery port.

Fig. 3,4 shows other two kinds of mouths of a river of five five equilibrium switching position waterway switchers and arranges and switch mode, be the distortion of waterway switcher shown in Figure 2 mouth of a river arrangement model, in order that the outer end of lower wall delivery port 32 passages is moved on to dish central authorities, be connected with sealing gland and filter core coupling with central delivery port.

In addition, described of the present invention pair of interface, five five equilibrium switching position waterway switchers can expand to the waterway switcher at six or seven five equilibrium switching positions, two interfaces, mutual handoff relation between its switching principle and the mouth of a river and five five equilibrium switching position pattern basically identicals have just increased some useless rooms.

Fig. 5 shows and three mouthfuls of waterway switcher employing eight equal parts switching position, unidirectional recoil switching embodiments that filter core is corresponding.The water inlet 11 and first and second recoil mouth of a

river

14,15 that are communicated with waterway channel A are arranged on the last dish eight equal parts switching position, and the delivery port 12 that is communicated with waterway channel B, first and

second discharge outlet

13,16 that is communicated with waterway channel C in addition.Lower wall entery and

delivery port

31,32 is corresponding with last dish entery and

delivery port

11,12, and is communicated with the entery and delivery port of three mouthfuls of filter cores respectively; The discharge outlet 33 corresponding with the mouth of a river 13 is communicated with the discharge outlet of these filter cores, and the discharge outlet 36 corresponding with the mouth of a river 16 connects logical water inlet 31; First and second recoil mouth of a

river

34,35 corresponding going up are coiled first and second recoil mouth of a

river

14,15, and are communicated with delivery port 32, discharge outlet 33 respectively.Mid-game entery and

delivery port

21,22 respectively with upper and lower dish entery and

delivery port

11,12,31,32 corresponding connections; Discharge outlet 23 and 135 ° of water inlet angles.The mouth of a

river

14,21,34,32,33,23,13 constitutes the recoil passage of three mouthfuls of filter core second filtering layers; The mouth of a

river

15,21,35,33,31,36,23,16 constitutes the recoil passage of three mouthfuls of filter core first filtering layers.

Fig. 6 shows waterway switcher and adopts the eight equal parts switching position, goes up the two-way recoil embodiment of dish water inlet.On the basis of above-mentioned eight equal parts switching position technical scheme, change upper and lower dish

second discharge outlet

16,36 into the second recoil mouth of a

river

15,35;

Second discharge outlet

16,36 is set on the upper and lower dish position of middle position between corresponding mid-game delivery port 22 and the discharge outlet 23, and make the advancing of lower wall 3,

discharge outlet

31,33 is communicated with second discharge outlet 36 respectively and recoil mouthfuls 35, other respectively coil mouth of a river layout and connected relation is corresponding constant.Thereby constituted the recoil passage of another three mouthfuls of filter core first filtering layers, realized corresponding two-way recoil pattern.

On the embodiment basis of above-mentioned employing eight equal parts switching position waterway switcher, in order to be connected with filter core with the central mouth of a river, also can be with reference to the distortion of above-mentioned lower wall delivery port and the sealing gland setting of arranging, with the loading and unloading of simplifying filter core and the structure that is connected of sealing gland.

On above-mentioned embodiment basis, by means of the discharge pipe C of supports at different levels, can connect the final stage support waterway channel B of fine filtering filter core, with the discharge pipe line C that is positioned at inlet pipeline interface side, a shared tap.The connection of this end waterway channel B, C can be communicated with by end socket 19 sealings, also can realize by waterway channel in the connection support, can also realize by being communicated with the delivery port 12 and the discharge outlet 13 of coiling on the waterway switcher.During purification, the discharge water paths becomes the water purification passage of water purifier.It is not communicated with each support waterway switcher discharge outlet 23.During recoil, switch, can carry out successively or recoil cleaning step by step, and, directly emit by clear water faucet with the corresponding waterway switcher floss hole 23 of impurity warp and the discharge water paths C that clean out to each filter core by the recoil of each waterway switcher.By look-out to the impurity emission behaviour of clear water faucet, can control the recoil time of corresponding certain one deck or certain one-level filter core, obtain repercussion effect preferably.

As improvement of the present invention, a plurality of waterway switchers can be arranged on the support, and, realize recoil cleaning a plurality of filter cores of water purifier with the corresponding mutually connection of its corresponding waterway channel A, B, C.

Fig. 7 shows the present invention and adopts three grades of supports, four waterway channels head and the tail to connect embodiment to inserting.There is concave-convex type fit tube pipeline joint waterway channel A, the B of

support

41,42,43, C front and rear end, can connect inserting by a plurality of head and the tail, with sealing ring 8, locking member 17 sealing and fixing, and the filter core that will connect separately is connected between total inlet and outlet pipe interface.During work, running water enters from the waterway channel A of elementary support 41, and by waterway channel A, the B of preposition support 42, the water purification waterway channel B by the final stage support 43 that connects the fine filtering filter core flows out at last.In order to increase filtering content, prolong filtration time, to improve effect, can make up needs according to filter design, form water purifier with multilayer or multistage filtering.During recoil, can be by the switching of a certain waterway switcher, to the cleaning that recoils separately of connected corresponding filtering layer or filter core.

On above-mentioned embodiment basis, be provided with the preposition paths D that purifies waste water of band concave-convex type mating interface on the support in addition.The axis of the concave-convex type mating interface of this preposition paths D that purifies waste water, parallel with the axis of the concave-convex type fit tube pipeline joint of the waterway channel A, the B that connect entery and delivery port and floss hole, C front and rear end.Waterway channel A, the B of two supports, C front and rear end concave-convex type mating interface to insert connect in, the concave-convex type mating interface of the preposition paths D that purifies waste water of two supports also connects inserting each other.The preposition paths D that purifies waste water is connected with the waterway channel B of preposition support 42.The other end of this waterway channel D connects the water place that tap only needing to be used for thick level filtration.The user also can be connected this preposition waterway channel D as required with original tank tap, will be used for washing through the water of elementary micro-filtration filtration treatment.In addition, the preposition paths D that purifies waste water is with after fine filter core support water inlet waterway channel A and preposition support waterway channel B are communicated with, and the preposition paths D that purifies waste water that can also the follow-up support of continued access is so that installation filtration and warning device 20.

On above-mentioned embodiment basis, the front end concave-convex type fit tube pipeline joint of described elementary support 41 is inserted with total inlet and outlet pipe and 18 pairs preceding pipeline interfaces and is connected, and with seal 8, locking member 17 sealing and fixing.

In the above-described embodiment, described sealing gland both can be arranged on the waterway switcher lower wall outside, the outside that also can dish disposed thereon: for the former, the filter core entery and delivery port is by the through channel on the sealing gland, contacts with the waterway switcher lower wall mouth of a river to be connected; For the latter, then realize the sealing butt joint by the through channel that is arranged on the support.

As the present invention's three supports, four waterway channels head and the tail to inserting the extension of connection mode, the waterway switcher of each support can be arranged on the support, and with relevant waterway channel A, B, C, D it is interconnected, realize that original multimachine seat, four waterway channels head and the tail are to inserting the function of interconnection technique scheme.

On the basis of above-mentioned embodiment, the single support that the front and rear end is had the concave-convex type mating interface of waterway channel A, B, C is connected between the inlet and outlet pipe concave-convex type mating interface inserting, and, constitute single-stage multi-filtering layer water purifier with elastic seal ring 8, locking member 17 sealing and fixing.

Usually, the waterway switcher of elementary and

preposition support

41,42 adopts five switching position patterns and two mouthfuls of supporting uses of filter core.Prefiltration and big flow that elementary filter core, preposition filter core mainly solve water use problem, and the filter material layer relative quantity is big, single.The main filter core that is positioned at fine filter core behind the preposition filter core and is machine is easy to be stopped up by impurity, also is the emphasis of backwash.Owing to also will carrying out functional processing, but be subjected to the restriction of machine dimensions, often this grade filter core be arranged to multistage filtering layer, and be equipped with the waterway switcher of many switching positions by the water behind the main filter core.Therefore, final stage support 43 can adopt eight switching position patterns and three mouthfuls of supporting uses of filter core.If machine dimensions allows with filtering requirement, the waterway switcher of support can all adopt five switching position patterns and two mouthfuls of supporting use patterns of filter core.

The present invention also can combine with normal conventional filter core water purifier.In this case, has only the filter core cleaning that can recoil of band waterway switcher.

In above-mentioned embodiment of the present invention, three mouthfuls of filter cores both can be that two filtering layer patterns also can adopt cancellation first filtering layer, and made the filter core mesozone and wait to filter the pattern of distinguishing the single filtering layer that unites two into one, can also become the tandem mode of two two mouth of a river filter cores.For the filter core that adopts central delivery port, in the technical scheme that adopts the eight equal parts switching position, the lower wall delivery port both can also can be connected it by means of the water outlet pipeline that is arranged on the sealing gland inboard by the transition mouth of a river with the central mouth of a river of sealing gland, be convenient to install filter core.

The invention is not restricted to above-mentioned embodiment; do any variation no matter switch on the mouth of a river quantity at the mouth of a river or the position at waterway switcher; every employing has double containment interface switching and five to eight switching positions, and can relatively rotate change and respectively coil the water purifier of the relative switching position waterway switcher in the mouth of a river and all drop within the protection domain of the present invention.In addition; be connected between the inlet and outlet pipe concave-convex type mating interface inserting for the single support that end face is had the concave-convex type mating interface that connects the water-in and water-out switching mouth of a river; and with the fixing water purifier of seal, locking member; or the many waterway switchers of single stand are configured to and with the combination of normal conventional filter core water purifier all be a kind of distortion of the present invention, all should think within protection scope of the present invention.

Claims

1. a backwashing water purification apparatus comprises support (4), filter core (9), it is characterized in that also comprising in the support (4) by three respectively having upper, middle and lower dish (1), (2) of switching the mouth of a river, two interfaces waterway switcher and the sealing gland (7) that (3) constitute; Sealing gland (7) is in contact with one another with upper, middle and lower dish (1), (2), (3) and support (4) and cooperates; This waterway switcher has 5～8 equity branch switching positions respectively, and switching mouth of a river of dish (1) is communicated with independent waterway channel A, B, C respectively on it; The mouth of a river of its lower wall (3) is communicated with the mouth of a river of filter core; Be positioned at the mid-game (2) between upper and lower dish (1), (3), can rotate two interface switching are sealed switching simultaneously; Respectively switching mouth of a river connected relation each other on three dishes can change with the rotation of mid-game (2).

2. band backwashing water purification apparatus as claimed in claim 1 is characterized in that the upper and lower dish of described waterway switcher (1), (3) outside respectively are provided with seal (6).

3. backwashing water purification apparatus as claimed in claim 1, it is characterized in that on the described waterway switcher having on dish (1) the five five equilibrium switching position position adjacent and all be communicated with the water inlet (11) of waterway channel A and the mouth of a river (14) of recoiling, with the delivery port (12) that is communicated with waterway channel B, and the discharge outlet (13) that is communicated with waterway channel C; Described lower wall (3) has corresponding with the last dish mouth of a river respectively and is communicated with entery and delivery port (31), (32) of two mouthfuls of filter cores (9), the recoil mouth of a river (34) that reaches the corresponding mouth of a river (14) and be communicated with delivery port, the discharge outlet (33) corresponding with last dish discharge outlet (13) is communicated with water inlet (31); Described mid-game (2) entery and delivery port (21), (22) and upper and lower dish entery and delivery port (11), (12), (31), (32) corresponding connection; Discharge outlet (23) is 144 ° with water inlet (21) angle.

4. backwashing water purification apparatus as claimed in claim 1 or 2, it is characterized in that the water inlet (11) that is communicated with waterway channel A and the recoil mouth of a river (14), (15), the delivery port (12) that is communicated with waterway channel B and the discharge outlet (13), (16) that are communicated with waterway channel C are arranged on dish (1) eight equal parts switching position on the described waterway switcher; Described lower wall (3) entery and delivery port (31), (32) and last dish entery and delivery port (11), (12) are corresponding, and be communicated with the entery and delivery port of three mouthfuls of filter cores respectively, middle discharge outlet (33) is positioned between entery and delivery port (31), (32), and connect the middle mouth of a river of this filter core, the contiguous water inlet (31) in the recoil mouth of a river (34), and be communicated with water inlet (31) communicated drainage mouth (36) with delivery port (32); Described mid-game entery and delivery port (21), (22) respectively with upper and lower dish entery and delivery port (11), (12), (31), (32) corresponding connection, discharge outlet (23) is positioned on the position between the mouth of a river (21), (22), with water inlet (21) angle be 135 °; The recoil mouth of a river (35) and the mouth of a river (15), (21), (31), (33), (36), (23), (16) constitute the recoil passage of three mouthfuls of filter core first filtering layers.

5. as claim 1,2,3 or 4 described backwashing water purification apparatus, it is characterized in that the water purification waterway channel B of described final stage filter core support is communicated with each support waterway channel C.

6. as claim 1,2,3 or 4 described backwashing water purification apparatus, it is characterized in that having on the described support (4) a plurality of waterway switchers and be connected, and the filter core that each waterway switcher is connected is connected between total support inlet and outlet pipe interface with correspondence before and after waterway channel A, B, the C; Be positioned at fine filtering filter core water inlet waterway channel A when connecting waterway channel B, go back the preposition paths D that purifies waste water of connecting band valve.

7. as claim 1,2,3 or 4 described backwashing water purification apparatus, it is characterized in that described support (41) (42), (43) waterway channel A, B, C, can a plurality of head and the tail correspondences connect, and the filter core that will connect separately (9) is connected between total inlet and outlet pipe interface.

8. backwashing water purification apparatus as claimed in claim 7, it is characterized in that there is concave-convex type pipeline mating interface described support (41), (42), (43) waterway channel A, B, C front and rear end, can connect inserting by a plurality of head and the tail, with seal (8), locking member (17) sealing and fixing.

9. backwashing water purification apparatus as claimed in claim 8, it is characterized in that described support (41), (42), be provided with the preposition paths D that purifies waste water of band concave-convex type fit tube pipeline joint in addition, its concave-convex type fit tube pipeline joint is parallel with the concave-convex type fit tube pipeline joint of waterway channel A, B, and can be together to inserting; The preposition paths D that purifies waste water of band valve is communicated with fine filter core support water inlet waterway channel A.

10. backwashing water purification apparatus as claimed in claim 6, it is characterized in that described elementary support (41) front end concave-convex type fit tube pipeline joint is connected inserting with total inlet and outlet pipe and preceding pipeline interface (18), and with seal (8), locking member (17) sealing and fixing.