CN201253509Y - Backwashing water purification apparatus - Google Patents

Abstract

The utility model relates to the water treatment industry, in particular to the further filtration and the purification of drinking water. The utility model comprises a base, a filter element, a bifacial waterway switcher and a gland cover, wherein the bifacial waterway switcher comprises an upper disc, a middle disc and a lower disc with switching water gaps and is arranged in the base, and the gland cover is in contact fit with the upper disc, the middle disc, the lower disc and the base; the waterway switcher is provided with 4 to 8 pairs of equant switching positions, the water switching gaps of the upper disc of the waterway switcher are respectively communicated with independent waterway channels A and B, the middle disc of the waterway switcher forms a sealed internal cavity communicated with a waterway channel C together with the upper disc, the lower disc and the base and can switch the seal of two switching interfaces rotatably simultaneously, and the communication relation of the switching water gaps on the three discs can be changed along with the rotation of the middle disc. The utility model has the advantages of simple and practical structure, low cost, easy control of assembly quality, good back-flushing effect and high environmental suitability.

Description

The band backwashing water purification apparatus

Technical field

The utility model 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 adopt the filter element of water purifier of milipore filter, NF membrane, reverse osmosis membrane,, be easy to produce clogging during use, influence filter element life because mesh size is few at some.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 utility model mainly solves provides a kind of simple and practical band backwashing water purification apparatus, to overcome above-mentioned defective and deficiency.

The utility model comprises support, filter core, also comprises by the upper, middle and lower at three band switching mouths of a river coiling two interfaces waterway switcher and the sealing gland that constitutes in support.The sealing gland is in contact with one another with upper, middle and lower dish and support and cooperates.Under the effect of pressing of sealing gland, two interface switching guarantee that for the sealing interface switching water in the waterway switcher can not leak outside along interface switching.This waterway switcher has 4～8 equity branch switching positions, and the switching mouth of a river of last dish is communicated with waterway channel A, B respectively.The lower wall mouth of a river is communicated with the mouth of a river of filter core.Mid-game and upper and lower dish and support constitute a closed cavity that is communicated with waterway channel C, and 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.

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.

Described waterway switcher can adopt quartering switching position and two mouthfuls of supporting application of filter core: on coil and have the position adjacent and all be communicated with the water inlet and the recoil mouth of a river of waterway channel A and the delivery port that is communicated with waterway channel B on the quartering switching position.The entery and delivery port that is communicated with two mouthfuls of filter core mouths of a river is arranged on the lower wall, and the recoil mouth of a river that is communicated with the delivery port that is positioned at lower wall central authorities.The lower wall water inlet is corresponding with last dish water inlet.The entery and delivery port of mid-game and the corresponding connection of upper and lower dish entery and delivery port; The mid-game discharge outlet that is communicated with waterway channel C is positioned on the switching position relative with the upper and lower dish recoil mouth of a river for bending the hole down.After the rotation mid-game makes the mid-game water inlet switch to the recoil position by run location, running water is flowed into by the dish recoil mouth of a river of going up that is communicated with waterway channel A, enter filter core and pass filtering layer through mid-game water inlet, the lower wall recoil mouth of a river and delivery port, flow out by lower wall water inlet, mid-game discharge outlet and waterway channel C again.

In above-mentioned quartering switching position technical scheme, the another kind of mouth of a river arrangement form of waterway switcher can be exchanged mid-game water inlet and discharge outlet position, and the dish recoil mouth of a river is gone up in cancellation.Other layout and connected relations that respectively coil the mouth of a river are constant.Running water channel C by water enters, and channel B, A flow out by water respectively again.

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 waterway channel A, B, C front and back; Be positioned at the waterway channel B of the preceding waterway switcher of fine filtering filter core, after connection, also connect the preposition paths D that purifies waste water in the level waterway switcher waterway channel A; Waterway channel B, the C of final stage waterway switcher are interconnected.

There is concave-convex type fit tube pipeline joint described support waterway channel A, B, C front and rear end, can connect inserting by a plurality of head and the tail, and with seal, locking member sealing and fixing, and the filter core that will connect separately is connected between total inlet and outlet pipe interface.

In multimachine seat technical scheme of the present utility model, described support is 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 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 preposition support waterway channel B is communicated with, and no longer connects the preposition paths D that purifies waste water of follow-up support.

Described final stage filter core support waterway channel B can be communicated with discharge water paths C.

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

Second kind of switch forms of the utility model waterway switcher, can adopt five five equilibrium switching positions and three mouthfuls of supporting application of filter core: the water inlet and first and second recoil mouth of a river that are communicated with waterway channel A are arranged on the five five equilibrium switching positions of dish on it, and the delivery port that is communicated with waterway channel B.On the described lower wall switching position, entery and delivery port and discharge outlet are communicated with the entery and delivery port and the discharge outlet of three mouthfuls of filter cores.First recoil mouth of a river next-door neighbour's water inlet, and connection is positioned at the delivery port of disk center down.The second recoil mouth of a river communicated drainage mouth, and constitute three mouthfuls of filter core first filtering layers recoil passages with the relevant mouth of a river.In the described mid-game, entery and delivery port is communicated with upper and lower dish entery and delivery port respectively; The mid-game discharge outlet that is communicated with waterway channel C is for bending the hole down, with the water inlet angle be 216 °.This discharge outlet not with other mouth of a river conducting.Only turn to first and second recoil during position in mid-game, this draining eloquence can be distinguished and is communicated with lower wall discharge outlet, water inlet separately.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 first and second recoil position, the mouth of a river by rotating the mid-game of waterway switcher, running water just can be respectively to two filtering layers of three mouthfuls of filter cores by after the cleaning that recoils forward.

Of the present utility model pair of interface, five five equilibrium switching position waterway switchers can expand to six, seven five equilibrium switching positions, two interfaces waterway switcher, the mutual handoff relation basically identical between its switching principle and the mouth of a river.

The third switch forms of described waterway switcher can adopt the eight equal parts switching position.The water inlet and first and second recoil mouth of a river that are communicated with waterway channel A are arranged on the last dish eight equal parts switching position, and the delivery port that is communicated with waterway channel B; The lower wall entery and delivery port is corresponding with last dish entery and delivery port, and is communicated with the entery and delivery port of three mouthfuls of filter cores respectively; The contiguous water inlet of discharge outlet connects the filter core discharge outlet, and the first recoil mouth of a river is positioned on the opposite side switching position of contiguous water inlet, is communicated with the recoil passage of the second recoil mouth of a river and three mouthfuls of filter core first filtering layers of relevant mouth of a river formation with delivery port.The mid-game entery and delivery port respectively with the corresponding connection of upper and lower dish entery and delivery port; The discharge outlet that connects waterway channel C is curved hole down, with 270 ° of water inlet angles.

On the basis of above-mentioned five, eight equal parts switching position technical scheme, the mouth of a river distribution pattern that can develop and make new advances.The second recoil mouth of a river is arranged on next-door neighbour's water inlet, on the position of corresponding lower wall discharge outlet, and adjusts the annexation at the relevant mouth of a river, constitute the recoil passage of three mouthfuls of filter core first filtering layers, realize corresponding two-way recoil pattern.In addition, change water inlet and draining water (flow) direction, equally, the mouth of a river distribution pattern that can develop and make new advances.Mid-game water inlet and discharge outlet position are exchanged: promptly water inlet is for bending the hole down, and discharge outlet is a through hole, and other respectively coil mouth of a river distribution and connected relation is adjusted accordingly, and just can derive from the mouth of a river arrangement form that makes new advances.Running water channel C by water enters, and channel B, A flow out by water respectively.And, adopt the waterway switcher of mid-game water inlet that unidirectional and two-way two kinds of recoil patterns also can be arranged.

Filter core described in the utility model 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.

In the technique scheme described in the utility model, the upper-lower position relation of support and sealing gland can be exchanged, as long as original filter core connector on the sealing gland is moved on on the support, and assurance and lower wall and the constant original function that then do not influence of the original connected relation of filter core.

The utility model is compared with existing water purifier and is had 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, to individual layer multi-stage filter core carries out successively or step by step more up hill and dale recoil clean, 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 utlity model 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 utility model adopts two interfaces waterway switcher, two mouthfuls of filter core operation principle schematic diagrames.

Fig. 2 be the utility model adopt quartering switching position, on coil water inlet pattern principle schematic.

Fig. 3 is that the utility model adopts quartering switching position, mid-game water inlet pattern principle schematic.

Fig. 4 is that the utility model adopts five five equilibrium switching positions, goes up dish water inlet, unidirectional switch mode principle schematic.

Fig. 5 is that the utility model adopts five five equilibrium switching positions, goes up dish water inlet, two-way switch mode principle schematic.

Fig. 6 is that the utility model adopts five five equilibrium switching positions, mid-game water inlet, unidirectional switch mode principle schematic.

Fig. 7 is that the utility model adopts five five equilibrium switching positions, mid-game water inlet, two-way switch mode principle schematic.

Fig. 8 is that the utility model adopts the eight equal parts switching position, goes up dish water inlet, unidirectional switch mode principle schematic.

Fig. 9 is that the utility model adopts the eight equal parts switching position, goes up dish water inlet, two-way switch mode principle schematic.

Figure 10 is that the utility model adopts eight equal parts switching position, mid-game water inlet, unidirectional switch mode principle schematic.

Figure 11 is that the utility model adopts eight equal parts switching position, mid-game water inlet, two-way switch mode principle schematic.

Figure 12 is that the utility model adopts three grades of supports, four waterway channels, head and the tail to inserting the connection mode principle schematic.

The specific embodiment

Fig. 1,2,12 shows the optimum embodiment of the utility model waterway switcher.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 4～8 equity branch switching positions, and switching mouth of a river of dish 1 can independent waterway channel A with two of support 4, B be communicated with on it; The mouth of a river of its lower wall is communicated with the entery and delivery port of filter core 9; Its mid-game 2 constitutes a closed cavity that is communicated with 5 with upper and lower dish 1,3 and support 4.Closed cavity 5 is communicated with water hole C ' with waterway channel C.Mid-game can be rotated, and upper and lower 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.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 water route interface that has concentric annular on the sealing gland 7, its medial extremity can be communicated with waterway switcher lower wall entery and delivery port and 31,32,34 sealings of the recoil mouth of a river; Its outboard end can be inserted with 9 pairs of two mouthfuls of filter cores being furnished with the concentric annular interface and be tightly connected.Filter core 9 can be tightened on the support 4.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 lower wall 3 contact-making surfaces.Lower wall 3 mouths of a river 34 are also sealed by mid-game 2 contact-making 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 used a period of time, when impurities accumulation was needed recoil to clean to a certain amount of and activated carbon filter material surface by the decline of organic impurities adsorption effect in the water that filter course is held back, the mid-game 2 that can rotate waterway switcher was to the switching position that recoils.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 first recoil mouth of a river 34 and the 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 drained into closed cavity 5, flow out by water hole C ', waterway channel C again through filter core water inlet, lower wall water inlet 31, mid-game floss hole 23.

Fig. 2 show the utility model waterway switcher adopt quartering switching position, on coil water inlet pattern and two mouthfuls of supporting application of filter core: on coil and have the position adjacent and all be communicated with the water inlet 11 of waterway channel A and the mouth of a river 14 of recoiling on the quartering switching position, and be separated by with water inlet 11 and be communicated with the delivery port 12 of waterway channel B.The entery and delivery port 31,32 that is communicated with two mouthfuls of filter core 9 mouths of a river is arranged on the lower wall, and the recoil mouth of a river 34 that is communicated with the delivery port 32 that is positioned at lower wall central authorities.Lower wall water inlet 31 is corresponding with last dish water inlet 11.The entery and delivery port 21,22 of mid-game and upper and lower dish entery and delivery port 11,12,31,32 corresponding connections; The mouth of a river 20 is the transition mouth of a river, is communicated with the mouth of a river 22 and corresponding with last dish delivery port 12; The mid-game discharge outlet 23 of communication seals inner chamber 5 is curved hole down, between the mouth of a river 21,20, and on the switching position relative with the upper and lower dish recoil mouth of a river 14,34, by water hole C ' connection waterway channel C.After rotation mid-game 2 makes mid-game water inlet 21 switch to the recoil position by run location, running water is flowed into by the dish recoil mouth of a river 14 of going up that is communicated with waterway channel A, enter filter core and pass filtering layer through mid-game water inlet 21, the lower wall recoil mouth of a river 34 and delivery port 32, flow out by lower wall water inlet 31, mid-game discharge outlet 23 and waterway channel C again.

Fig. 3 shows the utility model waterway switcher and adopts quartering switching position, mid-game water inlet pattern and two mouthfuls of another kind of mouth of a river arrangement forms that filter core is supporting.Mid-game water inlet 21 and discharge outlet 23 positions can be exchanged, and the dish recoil mouth of a river 14 is gone up in cancellation.Other layout and connected relations that respectively coil the mouth of a river are constant.During operation, running water channel C by water enters the water inlet of the mid-game mouth of a river 21, lower wall water inlet 31, filter core 9 through closed cavity 5, passes behind the filtering layer again by the filter core delivery port, and three dish delivery ports 32,22,12 and waterway channel B flow out.During recoil, running water channel C by water enters the delivery port of the mid-game mouth of a river 21, the lower wall recoil mouth of a river 34, delivery port 32 and filter core 9 through closed cavity 5, passes behind the filtering layer again by the filter core water inlet, and the mouth of a river 31,23,11 of three dishes and waterway channel A flow out.

Figure 12 shows the utility model 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 seal 8, locking member 10 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, by waterway channel A, the B of preposition support 42, is flowed out by the final stage support 43 waterway channel B that connect the fine filtering filter core 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 only 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 that primary filter is handled.

On above-mentioned embodiment basis, the waterway channel B of described final stage support 43 can pass through the cover plate 16 of band elastic sealing element, or silently is communicated with discharge water paths C.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.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.

On above-mentioned embodiment basis, described elementary support front end concave-convex type mating interface is connected inserting with water pipeline concave-convex type mating interface E, and with elastic sealing element 8, locking member 10 sealing and fixing.

As the utility model 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 with elastic sealing element 8, locking member 10 sealing and fixing, and adopt same connection mode to be connected inserting with push mode sealing filter core, constitute single-stage multi-filtering layer water purifier.

Usually, the waterway switcher of elementary and preposition support 41,42 adopts four switching position patterns and two mouthfuls of supporting uses of filter core.Elementary filter core often adopts the PP fabric filter element large scale impurity such as particle silt colloid that dam, or adds KDF again and handle impurity such as heavy metal.The filtrate of preposition filter core adopts active carbon in order to absorption chlorine, organic matter mostly.Prefiltration and big flow that preceding two-stage filter core mainly solves 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 adopts five or eight switching position patterns and three mouthfuls of supporting uses of filter core.If machine dimensions allows, the waterway switcher of support can all adopt four switching positions and two mouthfuls of filter core matching models.

The utility model also can be combined with normal conventional filter core water purifier.In this case, has only the filter core cleaning that can recoil of band waterway switcher.

Waterway switcher in the support promptly can adopt four switching positions and two mouthfuls of supporting uses of filter core, also can adopt five, eight switching positions corresponding with three mouthfuls of filter cores.For support, promptly can select dish Inlet and outlet water, mid-game discharging mode for use, also can select for use the mid-game water inlet, on coil water exit mode.

Two interfaces, five to eight switching position waterway switchers are adopted in Fig. 4～11st, the utility model, eight embodiments that are used with three mouthfuls of filter cores.

Fig. 4 shows the waterway switcher corresponding with three mouthfuls of filter cores and adopts five five equilibrium switching positions, goes up the unidirectional recoil embodiment of dish water inlet.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 five five equilibrium switching positions of last dish 1, and the delivery port 12 that is communicated with waterway channel B.On the lower wall switching position, entery and delivery port 31,32 and discharge outlet 33 are communicated with the entery and delivery port and the discharge outlet of three mouthfuls of filter cores.34 connections of the first recoil mouth of a river are positioned at the delivery port 32 of disk center down, and this recoil mouth of a river 34 and the upper and lower dish mouth of a river 14,21,34,32,33,23 constitute the recoil passage of three mouthfuls of filter core second filtering layers.The second recoil mouth of a river, the 35 corresponding dish second recoil mouth of a river 15, the communicated drainage mouths 33 simultaneously of going up.This recoil mouth of a river 35 and the upper and lower dish mouth of a river 15,21,33,31,23 constitute the recoil passage of three mouthfuls of filter core first filtering layers.Mid-game entery and delivery port 21,22 is communicated with upper and lower dish entery and delivery port 11,12,31,32 respectively; The mid-game discharge outlet 23 of communicated drainage waterway channel C is curved hole down, with the water inlet angle be 216 °.This discharge outlet 23 not with other mouth of a river conducting.Only turn to first and second recoil during position in mid-game, this discharge outlet 23 just can be distinguished and is communicated with lower wall discharge outlet 33, water inlet 31 separately.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, mid-game when the rotary waterway switch, when making water inlet 21 arrive the first recoil switching mouth of a river, 34 switching positions, running water enters the purifying area of three mouthfuls of filter cores through the last dish recoil mouth of a river 14, mid-game water inlet 21, the lower wall first recoil mouth of a river 34 and delivery port 32, filter core delivery port.Under the hydraulic pressure effect,, the impurity that the infiltration of filter core mesozone is deposited in second filtering layer is oppositely gone out, and the mouth of a river and the mouth of a river 31,23 and waterway channel C discharge in the middle of filter core the cleaning that recoils of second filtering layer.Mid-game 2 continuation rotations when waterway switcher, when making water inlet 21 arrive the second recoil switching mouth of a river, 35 switching positions, running water enters the mesozone of three mouthfuls of filter cores through the last dish recoil mouth of a river 15, mid-game water inlet 21, the lower wall second recoil mouth of a river 35 and discharge outlet 33, filter core discharge outlet.Under the hydraulic pressure effect,, filter core is waited to filter the impurity that district's infiltration is deposited in first filtering layer oppositely goes out the cleaning that recoils of first filtering layer, and through filter core water inlet and the mouth of a river 31,23 and waterway channel C discharge.

Fig. 5 shows waterway switcher and adopts five five equilibrium switching positions, goes up the two-way recoil embodiment of dish water inlet.Be communicated with going up of waterway channel A and coil the second recoil mouth of a river, 15 corresponding lower wall discharge outlet 33.The second recoil mouth of a river 35 of lower wall is communicated with water inlet 31.Other layout and connected relations that respectively coil the mouth of a river are corresponding constant.Switch to first recoil 34 positions, the mouth of a river at mid-game water inlet 21, finish three mouthfuls of filter core second layers recoil clean return and return normal operation position after, the backward rotation five equilibrium switching position that staggers again, mid-game water inlet 21 is communicated with goes up the dish second recoil mouth of a river 15 and the lower wall discharge outlet 33, after running water oppositely cleans first filtering layer, flow out through mid-game discharge outlet 23 and waterway channel C.

Fig. 6 shows waterway switcher and adopts five five equilibrium switching positions, the mid-game unidirectional recoil embodiment of intaking.Discharge outlet 33, the water inlet 31 of going up the corresponding lower wall of first and second recoil mouth of a river 14,15 difference of dish of waterway switcher.Mid-game water inlet 21 is exchanged with discharge outlet 23 positions, and other respectively coil mouth of a river layout and connected relation is corresponding constant.Running water channel C by water enters, and channel B, A flow out by water respectively again.

Fig. 7 show waterway switcher adopt five five equilibrium switching positions, mid-game intake two-way recoil embodiment waterway switcher the mid-game water inlet of Fig. 6 signal, on the dish discharging mode basis, can adopt two-way recoil pattern equally: on coil 1 the second recoil mouth of a river 15 corresponding lower walls the second recoil mouth of a river 35, and dish water inlet 11 is gone up in cancellation.Other layout and connected relations that respectively coil the mouth of a river are corresponding constant.Running water channel C by water enters, and channel B, A flow out by water respectively again.

In addition, described of the present utility model 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, the mutual handoff relation basically identical between its switching principle and the mouth of a river.

Adopt in five five equilibrium switching positions, the unidirectional handoff technique scheme at the utility model, the water route at the mid-game transition mouth of a river 20 is not communicated with the water route that is connected of discharge outlet 33 with the lower wall second recoil mouth of a river 35.

Fig. 8 shows and three mouthfuls of waterway switcher employing eight equal parts switching position, unidirectional recoil embodiments of last dish water inlet 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; 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; Discharge outlet 33 contiguous water inlets 31, and connect the discharge outlet of this filter core, 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, constitute the recoil passage of three mouthfuls of first and second filtering layers of filter core.Mid-game entery and delivery port 21,22 respectively with upper and lower dish entery and delivery port 11,12,31,32 corresponding connections; The discharge outlet 23 that connects waterway channel C is for bending the hole down, with 270 ° of water inlet angles.

Fig. 9 shows waterway switcher and adopts the eight equal parts switching position, goes up the two-way recoil embodiment of dish water inlet.The lower wall second recoil mouth of a river 35 is arranged on the switching position placed in the middle between delivery port 32 and the discharge outlet 33, and is communicated with water inlet 31.The discharge outlet 33 that will go up the second recoil mouth of a river, the 15 corresponding lower walls of dish simultaneously is provided with, and other respectively coil mouth of a river layout and connected relation is corresponding constant.

Figure 10 shows waterway switcher and adopts eight equal parts switching position, the mid-game unidirectional recoil embodiment of intaking.Waterway switcher on dish water inlet, mid-game discharging mode basis in Fig. 8 signal, on coil first and second recoil mouth of a river 14,15 discharge outlet 33, the water inlet 31 of corresponding lower wall respectively.Mid-game water inlet 21 is exchanged with discharge outlet 23 positions, and other respectively coil mouth of a river layout and connected relation is corresponding constant.Running water channel C by water enters, and channel B, A flow out by water respectively again.

Figure 11 shows waterway switcher and adopts eight equal parts switching position, the mid-game two-way recoil embodiment of intaking.Waterway switcher the mid-game water inlet of Figure 10 signal, on the dish discharging mode basis, the lower wall second recoil mouth of a river 35 is arranged on the switching position placed in the middle between delivery port 32 and the discharge outlet 33, and is communicated with water inlet 31.15 corresponding lower walls, the second recoil mouth of a river 35, the last dish second recoil mouth of a river.Other respectively coil mouth of a river layout and connected relation is corresponding constant.Running water channel C by water enters, and channel B, A flow out by water respectively again.

In above-mentioned embodiment of the present utility model, 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 utility model is not limited 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 four 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 utility model protection domain.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 utility model, all should think within protection domain of the present utility model.

Claims (10)

1. a band 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 4～8 equity branch switching positions, and switching mouth of a river of dish (1) is communicated with independent waterway channel A, B respectively on it; The mouth of a river of its lower wall is communicated with the filter core entery and delivery port; Its mid-game (2) and upper and lower dish (1), (3) and support (4) constitute a closed cavity (5) that is communicated with waterway channel C, and 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. band backwashing water purification apparatus as claimed in claim 1, it is characterized in that on the described waterway switcher having on dish (1) quartering 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, and be separated by with water inlet (11) and be communicated with the delivery port (12) of waterway channel B; Described lower wall (3) has corresponding with the last dish mouth of a river respectively and is communicated with the entery and delivery port (31) (32) of two mouthfuls of filter cores (9), and the recoil mouth of a river (34) that is communicated with delivery port; 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; The discharge outlet (23) that is communicated with waterway channel C be curved hole down, is positioned at upper and lower dish to recoil on the relative switching position in the mouth of a river (14), (34).

4. band backwashing water purification apparatus as claimed in claim 1 is characterized in that on the described waterway switcher having on dish (1) quartering switching position position relatively and be communicated with entery and delivery port (11), (12) of waterway channel A, B respectively; 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), and the recoil mouth of a river (34) that is communicated with delivery port (32); Described mid-game is provided with the curved hole (21) of the water inlet down that is communicated with waterway channel C, and is corresponding with upper and lower water inlet (11), (31); Discharge outlet (23) is positioned on the switching position relative with the lower wall recoil mouth of a river (34).

5. as claim 1,2,3 or 4 described band 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 (1), (5) with waterway channel A, B, C front and back; Be positioned at the waterway channel B of the preceding waterway switcher of fine filtering filter core, after connection, also connect the preposition paths D that purifies waste water in the level waterway switcher waterway channel A; Waterway channel B, the C of final stage waterway switcher are interconnected.

6. as claim 1,2,3 or 4 described band backwashing water purification apparatus, it is characterized in that there is concave-convex type pipeline mating interface described support (4) 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 (10) sealing and fixing, and the filter core that will connect separately (9) is connected between total inlet and outlet pipe interface.

7. band backwashing water purification apparatus as claimed in claim 6, it is characterized in that described support (4) is 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; This preposition paths D that purifies waste water is communicated with the waterway channel B of preposition support (42).

8. band backwashing water purification apparatus as claimed in claim 6, it is characterized in that the elementary support of stating (41) front end concave-convex type fit tube pipeline joint with always be connected inserting into and out of pipeline and preceding pipeline interface (16), and with seal (8), locking member (10) sealing and fixing; Its final stage paths B that purifies waste water can be communicated with waterway channel C.

9. band backwashing water purification apparatus as claimed in claim 1 or 2, it is characterized in that on the described waterway switcher on the five five equilibrium switching positions of dish (1) diverter surface the water inlet (11) that is communicated with waterway channel A being arranged, and first and second recoil mouth of a river (14), (15), and the delivery port (12) that is communicated with waterway channel B; On described lower wall (3) switching position, entery and delivery port and discharge outlet (31), (32), (33) are communicated with the entery and delivery port and the discharge outlet of three mouthfuls of filter cores, the first recoil mouth of a river (34) next-door neighbour's water inlet (31), and being communicated with the delivery port (32) that is positioned at the center, the second recoil mouth of a river (35) and the mouth of a river (15), (21), (31), (33), (23) constitute the recoil passage of three mouthfuls of filter core first filtering layers; Described mid-game (2) entery and delivery port (21), (22) are communicated with upper and lower dish entery and delivery port (11), (12), (31), (32) respectively; The mid-game discharge outlet (23) that is communicated with waterway channel C is for bending the hole down, with water inlet (21) angle be 216 °.

10. band backwashing water purification apparatus as claimed in claim 1 or 2, it is characterized in that having on dish (1) eight equal parts switching position on the described waterway switcher water inlet (11) and first and second the recoil mouth of a river (14), (15) that are communicated with waterway channel A, and the delivery port (12) that is communicated with waterway channel B; Described lower wall (3) entery and delivery port (31), (32) and last dish (1) entery and delivery port (11), (12) are corresponding, and are communicated with the entery and delivery port of three mouthfuls of filter cores respectively; The contiguous water inlet (31) of discharge outlet (33), and connect the discharge outlet of this filter core, the first recoil mouth of a river (34) is positioned on the opposite side switching position of contiguous water inlet, and be communicated with delivery port (32), the second recoil mouth of a river (35) and the mouth of a river (15), (21), (31), (33), (23) constitute the recoil passage of three mouthfuls of filter core first filtering layers; Described mid-game (2) entery and delivery port (21), (22) respectively with upper and lower dish entery and delivery port (11), (12), (31), (32) corresponding connection, the discharge outlet (23) that connects waterway channel C is for bending the hole down, with 270 ° of water inlet (21) angles.

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