CN208406297U - A kind of recoil fore filter with multi-filtering function - Google Patents

Abstract

The utility model discloses a kind of recoil fore filters with multi-filtering function, including commutation valve body, core assembly and net-filter assembly, the valve body that commutates includes shell, shell has the inner cavity supplied water and flowed into or out, with the exocoel being arranged on the outside of inner cavity, shell is equipped with the first port connecting with net-filter assembly, it is connect with core assembly and core assembly can be in the second port of inner cavity movement, and third port, inner cavity is connected to exocoel in first port, and the intercommunicating pore of connection inner cavity and exocoel is equipped at second port；Net-filter assembly has strainer ontology and water flow passing away.Flow direction can be switched in the utility model, filter is set to have both filtering, along three kinds of functions of flushing and backwash, meanwhile, make to be difficult to the impurity washed out in strainer in flush filter, the water flow for being reversed operation thoroughly washes away, while can be rinsed to strainer inner wall.

Description

A kind of recoil fore filter with multi-filtering function

Technical field

The utility model relates to water purification fields, more specifically, before it is related to a kind of recoil with multi-filtering function Set filter.

Background technique

Fore filter is typically mounted at behind water meter, and main effect is mark tap water being restored to before factory Standard protects upstream device.The water supply line in city is outmoded and very long, and the impurity such as corrosion, silt of pipeline not only will lead to brown Water and water equipment control failure, and as faucet drips, heat-exchanger pipeline blocking, rupture, and impurity can precipitate on pipeline Get off, on the one hand provide breeding ground for the growth of bacterium, on the other hand will form electric compound matter, they can be short several The corrosion or perforation of metallic conduit are caused in a month.Fore filter can be filtered originally to the filter plant of full room water Such as iron rust, silt, particulate matter, suspended matter, colloidal substance, asbestos fibre, algae substances substance in water solve tap water and exist During urban pipe network transmission & distribution water, as urban pipe network, roof tank etc. aging, breakage and caused by secondary pollution, allow from The jinx for the problems such as water is restored to Drinking water quality, is " red water ", " Heisui River ", " yellow water ", " scale ".

There are the following problems for current fore filter: the only filter of filtering function, is torn open when cleaning after cutting pipeline Filter is unloaded to clean, it is complicated for operation, it is time-consuming and laborious；With the fore filter for washing function is included, there is certain including to wash function for it Can, but due to cannot thoroughly include wash clean, lead to the growth of bacterium, to clear in the element kit hole of impurity insertion filter screen Wash clean will also cut off pipeline and unpick and wash filter element of filter screen component；With along rushing the fore filter of function, when such as water quality inferiority or The habit of consumer is bad, and filter core is easy to be blocked, and not only lesser impurity flushing does not come out, instead in filter core it is embedding it is deeper, It is tighter, it easily causes secondary pollution and can only open shell filter core is taken out and scrubbed with toothbrush, cleaning efficiency is low, is easily damaged each Component；Fore filter with counter-flush is only able to achieve one layer of strainer filtering, can not achieve multi-filtering, filter effect Difference.

Summary of the invention

The purpose of this utility model is to provide be able to achieve multi-filtering when a kind of filtering thoroughly to retain dirt, cleaning filtering The fore filter of trapped substance can be thoroughly removed when device.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of recoil fore filter with multi-filtering function, including commutation valve body, core assembly and net-filter assembly, Commutation valve body includes shell, and shell has the inner cavity supplied water and flowed into or out, and the exocoel being arranged on the outside of inner cavity, and shell is equipped with and filter The first port of screen component connection, connect with core assembly and core assembly can be at the mobile second port in inner cavity and third end Mouthful, inner cavity is connected to exocoel in first port, and the intercommunicating pore of connection inner cavity and exocoel is equipped at second port；Net-filter assembly With strainer ontology and water flow passing away.When filtering, core assembly closed communication hole, water flow passing away closing, by inner cavity The water of entrance flows through filter screen ontology, then flows out by exocoel；Along when rushing, intercommunicating pore is still closed by core assembly, water flow Passing away is opened, and is flowed through filter screen ontology by the water that inner cavity enters, is then discharged by water flow passing away；When recoil, valve Communication port between the mobile inner cavity of core assembly and net-filter assembly simultaneously seals the communication port, and water flow passing away is opened, by inner cavity into The water flow entered passes through intercommunicating pore, converges with the water flow entered by exocoel through screen modules, then arranges by water flow passing away Out.

Further, strainer ontology includes upper filter screen and lower filter screen, and upper filter screen is connected with lower filter screen by manner, strainer Ontology and strainer ontology pass through the multiple connection of manner.Net-filter assembly realizes that strainer links closely layer by layer, reaches the mesh of multi-filtering , it can thoroughly retain dirt.It is removably connected between strainer ontology, the strainer ontology of conveniently replaced damage, simultaneously Strainer ontology can be cleaned one by one, and it is higher to clean up degree.

Further, upper filter screen and lower filter screen include strainer, bracket, outer cover plate and inner cover plate, outer cover plate and inner cover plate it Between connected by bracket, strainer is positioned at outer cover plate and inner cover plate between, strainer ontology one end company of strainer pedestal and multiple connection It connects, strainer upper cover is connect with the strainer ontology other end of multiple connection.Hollow part is equipped among inner cover plate, strainer is set to hollow On the outside of portion.When filtering, water flow is passed through from net-filter assembly, and strainer concentrates retention dirt；When backwash, converged by exocoel and inner cavity and At water flow flowed out from exocoel, water is big, and water flow velocity is fast, and since dirt concentrates on strainer ontology, and can reach can be thoroughly clear The effect of dirt.

Further, outer cover plate is fused with bracket by plastic hot melt machine.The outer cover plate and branch fused by plastic hot melt machine Frame bonding strength is higher, not easy to break between outer cover plate and bracket under the impact of water flow.

Further, net-filter assembly includes the Blowoff ball valve for closure or openness water flow passing away, and accommodates strainer sheet The cup body of body, Blowoff ball valve are fixed on Blowoff ball valve fixing seat, and connector one end is connect with Blowoff ball valve fixing seat, and connector is another One end is connect with cup body, and cup body is connect by screw thread with commutation valve body.Blowoff ball valve fixing seat threadedly with blowdown ball Valve connection.

Further, gasket is equipped between connector and strainer ontology；Sealing ring is equipped between cup body and commutation valve body；Row Sealing ring is equipped between dirty ball valve and Blowoff ball valve fixing seat.The multiple settings of sealing ring are conducive to increase cup body and the valve body that commutates Between, the leakproofness between connector and strainer ontology.

Further, core assembly includes insert body, valve rod and handwheel, and valve rod one end connects insert body, and valve rod is another End connection handwheel；Insert body in external screw thread and reversal valve body by being threadedly engaged.It is cooperated by handwheel and valve rod, makes valve Core assembly can be mobile in commutation body cavity.Handwheel is fixed by screw and valve rod.

Further, valve rod and insert body are all provided with the ring recess for being arranged sealing ring.Sealing ring is using the ruler for being adapted to ring recess Very little, O shape, the O-ring that sealing ring similarly uses O-ring slot to be adapted to can be used in ring recess.The multiple settings of sealing ring are conducive to protect The leakproofness that core assembly is demonstrate,proved between the valve body that commutates.

Further, commutation valve body third port is connected with Inlet and outlet water valve body, and Inlet and outlet water valve body has mutually independent water flow Import department and water export portion, flow inlet portion are connected to commutation body cavity, and water export portion is connected to exocoel.When filtering, Filtered water flow successively passes through flow inlet portion, inner cavity, net-filter assembly, then flows out, leads to via exocoel, water export portion The automatic fitration of water flow can be realized by crossing Inlet and outlet water valve body.Inlet and outlet water valve body is realized detachable by screw thread and commutation valve body cooperation Connection, the sealing that sealing ring is equipped between Inlet and outlet water valve body and commutation valve body to increase Inlet and outlet water valve body between the valve body that commutates Property.

The course of work of the utility model is: when filtering, Blowoff ball valve is closed to close water in core assembly closed communication hole Passing away is flowed, filter screen ontology is flowed through by the water that inner cavity enters, is then flowed out by exocoel；When along rinsing, intercommunicating pore is still It is closed by core assembly, opens Blowoff ball valve, water flow passing away is open-minded, flows through filter screen ontology by the water that inner cavity enters, so It is discharged afterwards by water flow passing away；When backwash, core assembly is moved to the communication port sealed between inner cavity and net-filter assembly, Blowoff ball valve is opened, water flow passing away is open-minded, passes through intercommunicating pore by the water flow that inner cavity enters, converges with the water flow entered by exocoel It closes through filter screen ontology, is then discharged by water flow passing away.

Advantage is the utility model compared with prior art: 1, by being provided with the commutation valve body of inner cavity and exocoel, energy Enough core assemblies mobile in inner cavity and the net-filter assembly with water flow passing away, can be switched flow direction, make filter Have both filtering, along three kinds of functions of flushing and backwash.

2, by setting Inlet and outlet water valve body, Inlet and outlet water valve body has mutually independent flow inlet portion and water export portion, The automatic fitration of water flow can be achieved.

3, by the way that water flow passing away is arranged, when along rinsing, the water flow entered by inner cavity embedding in strainer can will be obtained not The deep or impurity without being embedded in strainer is disposed.

4, when backwashing, the water flow and exocoel water flow entered by inner cavity is merged into all the way, and strainer inside and outside differential pressure increases, water flow Flow velocity increases, and makes to be difficult to the impurity washed out in strainer, the water flow for being reversed operation thoroughly washes away, while can be to strainer inner wall It is rinsed.

5, by snapping together multiple strainer ontologies, it can be achieved that multi-filtering；With detachable side between strainer ontology Formula connection, the strainer ontology of conveniently replaced damage, while strainer ontology can be cleaned one by one, it is higher to clean up degree.

Detailed description of the invention

Fig. 1 is the schematic diagram of fore filter.

Fig. 2 is the installation diagram of fore filter.

Schematic diagram when Fig. 3 is fore filter filtering.

Fig. 4 is fore filter along schematic diagram during rinsing.

Schematic diagram when Fig. 5 is fore filter backwash.

Fig. 6 is the three-dimensional structure diagram of commutation valve body.

Fig. 7 is the main sectional view of commutation valve body.

Fig. 8 is the schematic diagram of net-filter assembly.

Fig. 9 is the structural schematic diagram of upper filter screen.

Figure 10 is the structural schematic diagram of lower filter screen.

Figure 11 is strainer upper cover schematic perspective view.

Figure 12 is strainer pedestal schematic perspective view.

Figure 13 is the main view of core assembly.

Figure 14 is the schematic diagram of fore filter Inlet and outlet water valve body.

It is identified in figure: commutation valve body 1, core assembly 2, net-filter assembly 3, shell 11, inner cavity 12, exocoel 13, internal screw thread 14, first port 111, second port 112, third port 113, intercommunicating pore 1121, strainer ontology 31, water flow passing away 32, Blowoff ball valve 33, cup body 34, connector 35, screw thread 341, gasket 36, sealing ring 37, Blowoff ball valve fixing seat 38, upper filter screen 311, lower filter screen 312, strainer 3111, bracket 3112, outer cover plate 3113, inner cover plate 3114, strainer pedestal 313, strainer upper cover 314, hollow part 31141, insert body 21, valve rod 22, handwheel 23, ring recess 24, external screw thread 211, Inlet and outlet water valve body 4, water flows into Oral area 41, water export portion 42, connector 43.

Specific embodiment

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

A kind of recoil fore filter with multi-filtering function, as shown in Figs. 1-5, including commutation valve body 1, spool group Part 2 and net-filter assembly 3, commutation valve body 1 include shell 11, and shell 11 has the inner cavity 12 supplied water and flowed into or out, and outside inner cavity 12 The exocoel 13 of side setting, shell 12 are equipped with the first port 111 that connect with net-filter assembly 3, connect with core assembly and spool group The second port 112 and third port 113 that part can move in inner cavity 12, inner cavity 12 and exocoel 13 connect in first port 111 It is logical, the intercommunicating pore 1121 of connection inner cavity 12 and exocoel 13 is equipped at second port 112；Net-filter assembly 3 has strainer ontology 31 and water flow passing away 32.When filtering, 2 closed communication hole 1121 of core assembly, water flow passing away 32 is closed, by inner cavity 12 The water of entrance flows through filter screen ontology, then flows out by exocoel；Along when rushing, intercommunicating pore 1121 is still closed by core assembly 2, Water flow passing away 32 is opened, and flows through filter screen ontology 31 by the water that inner cavity 12 enters, and then passes through 32 row of water flow passing away Out；When recoil, communication port that core assembly 2 is moved between inner cavity 12 and net-filter assembly 3 simultaneously seals communication port, and water flow discharge is logical Road 32 is opened, and the water flow entered by inner cavity 12 is converged with the water flow entered by exocoel 13 through filter screen sheet by intercommunicating pore 1121 Then body 31 is discharged by water flow passing away 32.

Strainer ontology 31 includes upper filter screen 311 and lower filter screen 312, and upper filter screen 311 and lower filter screen 312 are connected by manner It connects, strainer ontology 31 and strainer ontology 31 pass through the multiple connection of manner.Net-filter assembly realizes that strainer links closely layer by layer, reaches more The purpose of heavy filtration can thoroughly retain dirt.It is removably connected between strainer ontology, the strainer of conveniently replaced damage Ontology, while filtering body can be cleaned one by one, it is higher to clean up degree.

As shown in figs9-12, upper filter screen 311 and lower filter screen 312 include strainer 3111, bracket 3112,3113 and of outer cover plate Inner cover plate 3114 is connected between outer cover plate 3113 and inner cover plate 3114 by bracket 3112, and strainer 3111 is located at outer cover plate 3113 Between inner cover plate 3114, strainer pedestal 313 is connect with strainer ontology one end of multiple connection, strainer upper cover 314 and multiple company The strainer ontology other end connection connect.Hollow part 31141 is equipped among inner cover plate 3114, strainer 3111 is set to hollow part 31141 outsides.When filtering, water flow can concentrate retention dirt, when recoil, the water flow that is merged by exocoel 12 and inner cavity 13 from Exocoel 13 flows out, and water is big, and flow rate of water flow is fast, and since dirt concentrates on strainer ontology 31, can thoroughly remove dirt.

Outer cover plate 3113 is fused with bracket 3112 by plastic hot melt machine.The outer cover plate and branch fused by plastic hot melt machine Frame bonding strength is higher, not easy to break between outer cover plate and bracket under the impact of water flow.

As shown in figure 8, net-filter assembly 3 includes the Blowoff ball valve 33 for closure or openness water flow passing away 32, and hold The cup body 34 of nanofiltration net ontology 31, Blowoff ball valve 33 are fixed on Blowoff ball valve fixing seat 38,35 one end of connector and Blowoff ball valve Fixing seat 38 connects, and 35 other end of connector is connect with cup body 34, and cup body 34 is connect by screw thread 341 with commutation valve body 1.Blowdown Ball valve fixing seat 38 is cooperated by screw thread and Blowoff ball valve 33.

Gasket 36 is equipped between connector 35 and strainer ontology 31；Sealing ring is equipped between cup body 34 and commutation valve body 1 37；Sealing ring 37 is equipped between Blowoff ball valve 33 and Blowoff ball valve fixing seat 34.The multiple settings of sealing ring 37 are conducive to increase Leakproofness between cup body 34 and commutation valve body 1, between connector 35 and strainer ontology 31.

As shown in Fig. 1 and Figure 13, core assembly 2 includes insert body 21, valve rod 22 and handwheel 23, the connection of 22 one end of valve rod Insert body 21,22 other end of valve rod connect handwheel 23；Insert body 21 is matched by external screw thread 211 with screw thread 14 in reversal valve body It closes.It is cooperated by handwheel 23 and valve rod 22, keeps core assembly 2 mobile in commutation body cavity 12.Handwheel 23 passes through spiral shell Nail is fixed with valve rod 22.

As shown in figure 13, valve rod 22 and insert body 21 are all provided with the ring recess 24 for being arranged sealing ring.Sealing ring is using suitable O shape can be used in size with ring recess, ring recess 24, and sealing ring is similarly using the O-ring being adapted to O-ring slot.Sealing ring it is more Reset the leakproofness set and advantageously ensure that core assembly between the valve body that commutates.

As shown in figure 14, Inlet and outlet water valve body 4 is connect by connector 43 with commutation 1 third port 113 of valve body, Inlet and outlet water valve body 4 have mutually independent flow inlet portion 41 and water export portion 42, and flow inlet portion 41 is connected to commutation body cavity 12, water Outflow oral area 42 is connected to exocoel 13.When filtering, filtered water successively passes through flow inlet portion 41, inner cavity 12 and strainer group Then part 3 flows out via exocoel 13, water export portion 42, the automatic fitration of water flow can be realized by Inlet and outlet water valve body 4.Disengaging Water valve body 4 is detachably connected by screw thread and commutation valve body cooperation, realization, is equipped between Inlet and outlet water valve body 4 and commutation valve body 1 close Leakproofness of the seal to increase Inlet and outlet water valve body 4 between the valve body 1 that commutates.

Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, the utility model Protection scope should not be construed as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model is also and in this Field technical staff conceive according to the present invention it is conceivable that equivalent technologies mean.

Claims (9)

1. a kind of recoil fore filter with multi-filtering function, it is characterised in that: including commutation valve body, core assembly and Net-filter assembly, commutation valve body include shell, and shell has the inner cavity supplied water and flowed into or out, and the exocoel being arranged on the outside of inner cavity, shell Body is equipped with the first port connecting with net-filter assembly, connect with core assembly and core assembly can be in the second end of inner cavity movement Mouthful and third port, inner cavity and exocoel be connected in first port, be equipped at the second port and be connected to being connected to for inner cavity and exocoel Hole；Net-filter assembly has strainer ontology and water flow passing away.

2. a kind of recoil fore filter with multi-filtering function as described in claim 1, it is characterised in that: strainer sheet Body includes upper filter screen and lower filter screen, and upper filter screen is connected with lower filter screen by manner, and strainer ontology and strainer ontology pass through button The multiple connection of conjunction mode.

3. a kind of recoil fore filter with multi-filtering function as claimed in claim 2, it is characterised in that: upper filter screen Include strainer, bracket, outer cover plate and inner cover plate with lower filter screen, is connected between outer cover plate and inner cover plate by bracket, strainer position Between outer cover plate and inner cover plate, strainer pedestal is connect with strainer ontology one end of multiple connection, strainer upper cover and multiple connection The strainer ontology other end connection.

4. a kind of recoil fore filter with multi-filtering function as claimed in claim 3, it is characterised in that: outer cover plate It is fused with bracket by plastic hot melt machine.

5. a kind of recoil fore filter with multi-filtering function as claimed in claim 4, it is characterised in that: strainer group Part includes the Blowoff ball valve for closure or openness water flow passing away, and accommodates the cup body of strainer ontology, and Blowoff ball valve is fixed In Blowoff ball valve fixing seat, connector one end is connect with Blowoff ball valve fixing seat, and the connector other end is connect with cup body, and cup body is logical Cross screw thread and commutation valve body cooperation.

6. a kind of recoil fore filter with multi-filtering function as claimed in claim 4, it is characterised in that: connector Gasket is equipped between strainer ontology；Sealing ring is equipped between cup body and commutation valve body；Blowoff ball valve is fixed with Blowoff ball valve Sealing ring is equipped between seat.

7. a kind of recoil fore filter with multi-filtering function as described in claim 1, it is characterised in that: spool group Part includes insert body, valve rod and handwheel, and valve rod one end connects insert body, and the valve rod other end connects handwheel；Insert body is logical It crosses in external screw thread and reversal valve body and is threadedly engaged.

8. a kind of recoil fore filter with multi-filtering function as claimed in claim 7, it is characterised in that: valve rod and Insert body is all provided with the ring recess for being arranged sealing ring.

9. a kind of recoil fore filter with multi-filtering function as described in claim 1, it is characterised in that: reversal valve Body third port is connected with Inlet and outlet water valve body, and Inlet and outlet water valve body has mutually independent flow inlet portion and water export portion, water It flows into oral area to be connected to commutation body cavity, water export portion is connected to exocoel.