CN208177052U - Switching valve and backwash fore filter with switching valve - Google Patents
Switching valve and backwash fore filter with switching valve Download PDFInfo
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- CN208177052U CN208177052U CN201820380794.2U CN201820380794U CN208177052U CN 208177052 U CN208177052 U CN 208177052U CN 201820380794 U CN201820380794 U CN 201820380794U CN 208177052 U CN208177052 U CN 208177052U
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Abstract
The utility model provides a kind of switching valve and the backwash fore filter with switching valve, which includes valve body, transaxle and actuator.Valve body has first fluid entrance, second fluid entrance and fluid outlet, and first fluid entrance is normally opened fluid inlet.Transaxle is turnably inserted in valve body and between second fluid entrance and fluid outlet, transaxle includes shaft and the sealing element that is set on shaft, the two sides of sealing element are respectively formed the sealing inclined-plane of elasticity, and along the radial direction of shaft, the distance between two sealing inclined-planes are gradually reduced.Actuator is set to shaft, is rotated in valve body by shaft band dynamic seal, sealing inclined-plane sealing second fluid entrance or fluid outlet on sealing element.
Description
Technical field
The utility model relates to a kind of filter elements, and before in particular to a kind of switching valve and backwash with switching valve
Set filter.
Background technique
For a long time, iron rust, silt, asbestos fibre, red worm, moss algae for being generated in civil running water transmission process etc.
Secondary pollution can not all solve.With the continuous improvement of living standards, the mankind also have stringent hygienic requirements to drinking water,
Modern house water can all install a fore filter, avoid water pollution once again.Fore filter is to full room water
First of coarse filtration equipment can filter the large particulate matters such as silt, the iron rust in tap water.Fore filter is typically mounted at
The front end of pipeline, so being named with " preposition " two word；And " filtering ", then refer to the basic principle of this kind of equipment.
The impurity such as gravel, iron rust can be accumulated and are adhered on strainer in use for some time for filter on the market at present,
It causes the blocking of strainer and breeds bacterium, while can also lower filter effect to a certain extent and slow down the water velocity of water outlet.
And the impurity of such filter is cleared up in the prior art, it is typically cleared up, is operated by dismantling the strainer of filter
Trouble, it is cumbersome, it is also inconvenient.
Utility model content
The utility model is inconvenient in order to overcome the problems, such as existing fore filter cleaning, provides a kind of without disassembly
The switching valve cleaned and the backwash fore filter with switching valve.
To achieve the goals above, the utility model provides a kind of switching valve, the switching valve include valve body, transaxle and
Actuator.Valve body has first fluid entrance, second fluid entrance and fluid outlet, and first fluid entrance is normally opened fluid
Entrance.Transaxle is turnably inserted in valve body and between second fluid entrance and fluid outlet, and transaxle includes
Shaft and the sealing element being set on shaft, the two sides of sealing element are respectively formed the sealing inclined-plane of elasticity, close along the radial direction of shaft
Inclined-plane is sealed gradually to tilt to the center of sealing element.Actuator is set to shaft, is rotated in valve body by shaft band dynamic seal,
Sealing inclined-plane sealing second fluid entrance or fluid outlet on sealing element.
An embodiment according to the present utility model, sealing element include the axial alignment along shaft and enter respectively with second fluid
Mouthful and two independent sealing blocks being correspondingly arranged of fluid outlet, the corresponding sealing inclined-plane on two sealing blocks seal second fluid
Entrance or fluid outlet.
An embodiment according to the present utility model, sealing block is cylindrical, and the circumferential direction of sealing block is set to shaft, Mei Gemi
The one of bottom surface for sealing block forms sealing inclined-plane.
An embodiment according to the present utility model, switching valve further include two sealing positioning sleeves, two sealing positioning sleeves point
It is not sheathed on second fluid entrance and fluid outlet, two sealing positioning sleeves cooperate with the sealing inclined-plane on sealing element respectively to be sealed
Second fluid entrance or fluid outlet.
Corresponding with above-mentioned switching valve, the utility model also provides a kind of backwash prefilter with switching valve
Device, including filter body, above-mentioned switching valve and blowdown component.Filter body includes filter housings and is set to filtering
The intracorporal filter assemblies of device shell, form intake tunnel between filter housings and filter assemblies.Switching valve is set to filter
Ontology, first fluid entrance are connected with intake tunnel, and second fluid entrance and fluid outlet are respectively and in filter assemblies
Portion's connection.Blowdown component is set to filter body and is respectively communicated with the inside of intake tunnel and filter assemblies.
Under filtration condition, the sealing element on transaxle seals second fluid entrance, opens fluid outlet, and blowdown component closes
It closes, raw water enters intake tunnel after filtering component filters from first fluid entrance and enters inside filter assemblies and from fluid
Outlet outflow.
Under backwashing state, the sealing element on transaxle seals fluid outlet, opens second fluid entrance, raw water difference
Enter inside intake tunnel and filter assemblies through first fluid entrance and second fluid entrance, two bursts of water flows are constantly to filtering
The side wall of device assembly is washed away, and blowdown component is opened after cleaning, and sewage is flowed out out of blowdown component.
An embodiment according to the present utility model, fluid outlet and second fluid entrance are arranged in a staggered manner, and fluid outlet is located at
Side of the second fluid entrance far from blowdown component.
An embodiment according to the present utility model, the backwash fore filter with switching valve further includes control panel,
Control panel is electrically connected actuator, controls the driving condition of actuator.
An embodiment according to the present utility model, blowdown component include that blowdown component includes being connected to filter body in turn
Connector, Electronic control ball valve and the pollution discharge joint of end.
On the other hand, the utility model also provides another switching valve and fore filter knot corresponding with the valve body
Structure.The switching valve includes valve body, transaxle and actuator.Valve body has first fluid entrance, second fluid entrance and stream
Body outlet, first fluid entrance are normally opened fluid inlet, and the end face of second fluid entrance and fluid outlet is oblique.Turn
It changes axis to be turnably inserted in valve body and between second fluid entrance and fluid outlet, transaxle includes shaft and sets
The sealing element being placed on shaft, the two sides of sealing element are respectively formed the sealing plane of elasticity, and along the radial direction of shaft, second fluid enters
Mouthful end face and the distance between sealing plane gradually increase, the distance between the end face of fluid outlet and sealing plane gradually increase
Add.Actuator is set to shaft, is rotated in valve body by shaft band dynamic seal, the sealing plane sealing second on sealing element
Fluid inlet or fluid outlet.
In conclusion switching valve provided by the utility model and the backwash fore filter with switching valve pass through conversion
Valve realizes the variation of the water (flow) direction in filter body, under flushing state first fluid entrance and second fluid entrance point
Two-way mutual punching is not carried out to the side wall of filter assemblies not simultaneously, is constantly flushed in during the mutual collision of two bursts of water flows
The residue being adhered on the side wall of filter assemblies under filtration condition, substantially increases cleaning effect and user was without removing
Filter need to only change the water (flow) direction in filter by actuator, and square impact filtering, recoil cleaning, user can basis
Actual conditions indiscriminately ad. as one wishes switch over, swift to operate, conveniently, securely and reliably, and can replace home-use house lead in main valve, save
The installation of one family, one valve.
In addition, the change of water (flow) direction is by first fluid entrance, second fluid entrance, fluid outlet in switching valve
And the cooperation between transaxle.By the way that sealing element is arranged on transaxle, shaft band dynamic seal rotates to realize second
The sealing of fluid inlet or fluid outlet.By the way that the two sides of sealing element are formed sealing inclined-plane and along radial two sealings of shaft
Tiltedly gradually to the center of sealing element tilt, the setting overcome sealing element during rotation because of caused by seal width
Shaft radially different location motion profile different problems realize the sealing or second between sealing element and second fluid entrance
Sealing between fluid inlet and fluid outlet.
For above and other objects, features and advantages of the utility model can be clearer and more comprehensible, preferable reality is cited below particularly
Example is applied, and cooperates attached drawing, is described in detail below.
Detailed description of the invention
Fig. 1 show an embodiment of the present invention and provides the structural schematic diagram of switching valve.
Fig. 2A to Fig. 2 C, which is respectively shown in, is respectively at filtration condition, mistake for valve body and transaxle in switching valve shown in FIG. 1
Cross the structural schematic diagram under state and backwashing state.
Fig. 3 show the structural schematic diagram of transaxle.
Fig. 4 show the top view of transaxle in Fig. 3.
The structure that Fig. 5 show the backwash fore filter with switching valve of an embodiment of the present invention offer is shown
It is intended to.
Fig. 6 show the decomposition diagram of Fig. 5.
Fig. 7 show the structure that the backwash fore filter shown in fig. 5 with switching valve is under filtration condition and shows
It is intended to.
Fig. 8 show the structure that the backwash fore filter shown in fig. 5 with switching valve is under backwashing state
Schematic diagram.
Fig. 9 show the structure that valve body and transaxle match in the switching valve that another embodiment of the utility model provides and shows
It is intended to.
Specific embodiment
As shown in Figures 1 to 4, switching valve 200 provided in this embodiment includes valve body 1, transaxle 2 and actuator 3.Valve
Body 1 has first fluid entrance 11, second fluid entrance 12 and fluid outlet 13, and first fluid entrance 11 is normally opened fluid
Entrance.Transaxle 2 is turnably inserted in valve body and between second fluid entrance 12 and fluid outlet 13, transaxle 2
Including shaft 21 and the sealing element 22 being set on shaft 21, the two sides of sealing element 22 are respectively formed the sealing inclined-plane 221 of elasticity,
Along the radial direction of shaft 21, two sealing inclined-planes 22 are gradually tilted to the center of sealing element 2.Actuator 3 is set to shaft 21, passes through
Shaft 21 rotates in valve body 1 with dynamic seal 22, and the sealing inclined-plane 221 on sealing element 22 seals second fluid entrance 12 or stream
Body outlet 13.
In this present embodiment, first fluid entrance 11, second fluid entrance 12 and external raw water inlet three are formed
Three-port structure.However, the utility model is not limited in any way this.In other embodiments, first fluid entrance 11 and second
Fluid inlet 12 can be independently arranged.
Corresponding, as shown in Fig. 5 to Fig. 8, the present embodiment also provides a kind of backwash prefilter with switching valve
Device, it includes filter body 100, above-mentioned switching valve 200 and blowdown component that this, which has the backwash fore filter of switching valve,
300.Filter body 100 includes filter housings 101 and the filter assemblies 102 being set in filter housings 101, filtering
Intake tunnel 103 is formed between device shell 101 and filter assemblies 102.Switching valve 200 is set to filter body 100, first-class
Body entrance 11 is connected with intake tunnel 103, and second fluid entrance 12 and fluid outlet 13 are respectively and in filter assemblies 102
Portion's connection.Blowdown component 300 is set to filter body 100 and is respectively communicated in intake tunnel 101 and filter assemblies 102
Portion.
In this present embodiment, blowdown component 300 includes the connector 301, electronic for being connected to filter body end in turn
Control ball valve 302 and pollution discharge joint 303.However, the utility model is not limited in any way this.
Backwash fore filter provided in this embodiment with switching valve is realized by controlling the state of switching valve
The change of water (flow) direction in filter body, thus realize the 2-way state that the forward filter of filter and direction rinse, user
The cleaning of filter can be realized without carrying out any disassembly to filter, enormously simplify the cleaning of filter, make
With very convenient.Switching valve provided in this embodiment is discussed in detail below with reference to Fig. 1 to Fig. 8 in backwash prefilter
Application in device.However, the utility model is not limited in any way the application environment of switching valve, backwash fore filter is only
It is an application scenarios of switching valve.In other embodiments, switching valve can be applied to other dresses for needing to change flow direction
It sets, for example the change of oil circuit or other application scene in oil pump.
As shown in Fig. 2A and Fig. 7, when the backwash fore filter with switching valve is in filtration condition, in switching valve
Sealing element 22 seal second fluid entrance 12, open fluid outlet 13, blowdown component 300 close.At this point, arrow in Fig. 7
Direction is the flow direction of the water under filtration condition.Raw water from normally opened first fluid entrance 11 enter on filter body 100 into
In aquaporin 103, after the side wall of filter assemblies 102 intercepts, impurity (such as silt and moss substance) in raw water will be by
It is trapped on the lateral wall of filter assemblies 102, filtered water enters the inside of filter assemblies 102 and from fluid outlet 13
Flow into external water outlet connector.
In use for some time, the impurity retained on filter body 102 will be more and more, and excessive impurity not only influences
The speed of drainage, while being adhered to impurity on filter body 102 and can be added in water again, to influence water after filter
Quality, therefore user can change the state of transaxle 2 by actuator 3 in use for some time, so that filter
In backwashing state.In this present embodiment, actuator 3 includes driving motor 31 and driving circuit 32 and has the anti-of switching valve
Rinsing fore filter further includes control panel 400, and control panel 400 is electrically connected actuator 3, is changed by driving circuit
The state of driving motor, and the output shaft of motor connects shaft.However, the utility model is not limited in any way this.In other
In embodiment, actuator 3 can be the manual switch of connection shaft.
As shown in Fig. 2 C and Fig. 8, when the backwash fore filter with switching valve is in back flush state, sealing
Part 22 seals fluid outlet 13.At this point, the direction of arrow is the flow direction of the water under backwashing state in Fig. 8.Raw water is from first-class
Body entrance 11 and second fluid entrance 12 respectively enter in the intake tunnel 103 and filter assemblies 102 of filter body, due to
The side wall of filter assemblies has filter hole, and two bursts water flow will certainly mutually collision forms rapids on the side wall of filter assemblies
Stream, greatly increases the frictional force of the side wall of water flow and filter assemblies, so that the impurity mistake in filter hole will be adhered to or be wrapped in
It filters.The impurity that is soft and being easy winding such as moss, unidirectional water, which washes away, to be difficult to be cleaned up, only bimodal current
Constantly liquidate and be possible to be washed away.Sewage after cleaning is discharged through the blowdown component 300 of filter body end,
To realize that backwash fore filter reversely cleans.
Backwash fore filter provided in this embodiment with switching valve be not only not necessarily to disassembly can be realized cleaning and
Two bursts of constantly washing away for water flow also greatly improve clean dynamics, to increase substantially filtered water quality.
Switching valve 200 is the important component for backwashing fore filter, and in switching valve, the change of water flow is by the
The switching of 22 three of two fluid inlets 12, fluid outlet 13 and sealing element cooperates to complete.To realize to enter second fluid
Mouthfuls 12 or fluid outlet 13 sealing, in this present embodiment, as shown in Figures 1 to 4, sealing element 22 be arranged on shaft 21 and with
The sealing to realize second fluid entrance 12 or fluid outlet 13 is rotated with shaft 21.Have in the radial upper seal 22 of shaft
One fixed width, the distance which move the different location on sealing element during rotation will be different, and off-axis bar is got over
The distance of its movement of remote point will be longer, and the end face of second fluid entrance 12 and the end face of fluid outlet 13 are equal under normal conditions
For plane, this certainly will will appear rotation rear seal can not end face to second fluid entrance 12 or fluid outlet 13 be sealed
Situation.Therefore in order to overcome the problems, such as this, in this present embodiment, there are two the sealing inclineds of elasticity for the two sides tool of setting sealing element 22
Face 221,
Along the radial direction of shaft 21, two sealing inclined-planes 22 are gradually tilted to the center of corresponding sealing element.The setting makes
The both ends of radially two sealing elements after must rotating in shaft can seal second fluid entrance 12 or fluid outlet well
13。
The setting of sealing inclined-plane is very ingenious on sealing element provided in this embodiment, is not only simple in structure and energy is good
Realize sealing.Since sealing element is made of flexible material, greatly facilitates and its side wall is processed into sealing inclined-plane.Yu Benshi
It applies in example, 22 detachable connection of sealing element is in shaft.However, the utility model is not limited in any way this.
In fact, both the end face and the end face of fluid outlet 13 of second fluid entrance 12 are matched with the sealing on sealing element
Relationship between conjunction face be it is opposite, in other embodiments, as shown in figure 9, the end face of settable second fluid entrance and stream
The end face of body outlet is oblique, and the two sides of sealing element are respectively formed the sealing plane of elasticity, along the radial direction of shaft, second
The distance between the end face of body entrance and sealing plane gradually increase, the distance between the end face of fluid outlet and sealing plane
It gradually increases.This kind of structure equally may be implemented to seal after rotation.Likewise, the switching valve of this kind of structure can also be applied to instead
It rinses in fore filter, compared with the structure of the backwash fore filter provided in this embodiment with switching valve, area
The end face of the end face and fluid outlet that are not only in that second fluid entrance is oblique, and the two sides of sealing element are respectively formed bullet
The sealing plane of property, along the radial direction of shaft, the distance between second fluid entrance and sealing plane are gradually increased, fluid outlet
The distance between end face and sealing plane also gradually increase.Alternatively, also second fluid can be arranged simultaneously in other embodiments and enter
Mouthful end face be skewed, fluid outlet end face be skewed and sealing element on have cooperate with above-mentioned two inclined end face
Sealing inclined-plane.
In this present embodiment, sealing inclined-plane has elasticity, can block second fluid entrance 12 or fluid outlet 13 very well.For
Sealing effect is further increased, switching valve further includes two sealing positioning sleeves 4, and two sealing positioning sleeves 4 are sheathed on second respectively
Fluid inlet 12 and fluid outlet 13, two sealing positioning sleeves 4 seal second with the sealing inclined-plane cooperation on sealing element respectively
Body entrance 12 or fluid outlet 13.
Since the space in filter assemblies is far longer than the intracorporal space of valve, to avoid the intracorporal pressure of filtration condition lower valve
Power is excessive, needs to increase the space being discharged in valve body as far as possible.Therefore in this present embodiment, fluid outlet 13 and second fluid enter
Mouth 12 is arranged in a staggered manner, and fluid outlet 13 is located at side of the second fluid entrance 12 far from blowdown component 300.The position that the two is staggered
Water to flow out out of filter assemblies 102 provides the space of caching, not only takes into account drainage flow while also can effectively avoid
The excessive problem of pressure in valve body.It is corresponding with the position of second fluid entrance 12 and fluid outlet 13, it is in this present embodiment, close
Sealing 22 include along shaft axial alignment and respectively be correspondingly arranged with second fluid entrance and fluid outlet two it is independent
Sealing block, corresponding sealing inclined-plane sealing second fluid entrance 12 or fluid outlet 13 on two sealing blocks.Further, for into
One step improves the intracorporal space of valve, is arranged that two sealing blocks are cylindrical, and the circumferential direction of each sealing block is set to shaft 21, often
One of bottom surface of a sealing block forms sealing inclined-plane.Further, in order to be replaced to extending each sealing element
Two bottom surfaces of each sealing block are processed into sealing inclined-plane in this present embodiment by service life, when in use can be any
Replacement.However, the utility model is not limited in any way this.In other embodiments, each sealing block can only setting one it is close
Seal inclined-plane.
In other embodiments, can be used one, there is the sealing element of certain length to realize that second fluid enters in the axial direction
The sealing of mouth 12 and fluid outlet 13.The utility model is not limited in any way the shape of sealing element, and the shape of sealing element can be
Cylindric or cuboid or cube.Or also settable second fluid entrance 12 and fluid outlet 13 are coaxially disposed, at this time only
The sealing of the two need to can be realized using a sealing block.
For the pressure in real-time detection switching valve 200, in this present embodiment, the backwash fore filter with switching valve
It further include the pressure gauge 500 being set on switching valve 200, the pressure detecting part on pressure gauge gos deep into inside switching valve, and pressure refers to
Show that the lateral wall of switching valve is then arranged in panel.
In this present embodiment, the backwash fore filter with switching valve further includes upper housing 600 and lower case 700,
Upper housing coats the top of switching valve 200 and filter body, and lower case 700 coats blowdown component.Due to switching valve
Backwash fore filter is mounted in moist environment, and upper housing 600 and lower case 700 can effectively protect internal metal not
It is corroded, to improve the service life of filter.
In conclusion switching valve provided by the utility model and the side with switching valve rinse fore filter and pass through conversion
Valve realizes the variation of the water (flow) direction in filter body, under flushing state first fluid entrance and second fluid entrance point
Two-way mutual punching is not carried out to the side wall of filter assemblies not simultaneously, is constantly flushed in the overshoot of two bursts of water flows mutually collided
The residue being adhered on the side wall of filter assemblies under filtration condition, substantially increases cleaning effect and user was without removing
Filter need to only change the water (flow) direction in filter by actuator, and square impact filtering, recoil cleaning, user can basis
Actual conditions indiscriminately ad. as one wishes switch over, swift to operate, conveniently, securely and reliably, and can replace home-use house lead in main valve, save
The installation of one family, one valve.
In addition, the change of water (flow) direction is by first fluid entrance, second fluid entrance, fluid outlet in switching valve
And the cooperation between transaxle.By the way that sealing element is arranged on transaxle, shaft band dynamic seal rotates to realize second
The sealing of fluid inlet or fluid outlet.By the way that the two sides of sealing element are formed sealing inclined-plane and along radial two sealings of shaft
The distance between inclined-plane is gradually reduced, which overcomes sealing element during rotation because of caused by seal width in axis
Bar radially its motion profile different problems of different location realize the sealing or second between sealing element and second fluid entrance
Sealing between fluid inlet and fluid outlet.
Although the utility model is disclosed above by preferred embodiment, it is not intended to limit the utility model, it is any
This known those skilled in the art can make some changes and embellishment without departing from the spirit and scope of the utility model, therefore this is practical
Novel protection scope is subject to view claims range claimed.
Claims (10)
1. a kind of switching valve characterized by comprising
Valve body, has first fluid entrance, second fluid entrance and fluid outlet, and the first fluid entrance is normally opened stream
Body entrance；
Transaxle is turnably inserted in the conversion in the valve body and between second fluid entrance and fluid outlet
Axis includes shaft and the sealing element that is set on shaft, and the two sides of the sealing element are respectively formed the sealing inclined-plane of elasticity, along axis
The radial direction of bar, sealing inclined-plane are gradually tilted to the center of sealing element；
Actuator is set to the shaft, is rotated in valve body by shaft band dynamic seal, the sealing inclined-plane on sealing element is close
Seal second fluid entrance or fluid outlet.
2. switching valve according to claim 1, which is characterized in that the sealing element includes the axial alignment along shaft and divides
Two independent sealing blocks not being correspondingly arranged with second fluid entrance and fluid outlet, the corresponding sealing inclined on two sealing blocks
Face seals second fluid entrance or fluid outlet.
3. switching valve according to claim 2, which is characterized in that the sealing block is cylindrical, and the circumferential direction of sealing block is set
It is placed in shaft, one of bottom surface of each sealing block forms sealing inclined-plane.
4. switching valve according to claim 1, which is characterized in that the switching valve further includes two sealing positioning sleeves, and two
A sealing positioning sleeve is sheathed on second fluid entrance and fluid outlet respectively, two sealing positioning sleeves respectively with it is close on sealing element
Seal inclined-plane cooperation sealing second fluid entrance or fluid outlet.
5. a kind of switching valve characterized by comprising
Valve body, has first fluid entrance, second fluid entrance and fluid outlet, and the first fluid entrance is normally opened stream
The end face of body entrance, the second fluid entrance and fluid outlet is oblique；
Transaxle is turnably inserted in the conversion in the valve body and between second fluid entrance and fluid outlet
Axis includes shaft and the sealing element that is set on shaft, and the two sides of the sealing element are respectively formed the sealing plane of elasticity, along axis
The radial direction of bar, the distance between the end face of second fluid entrance and sealing plane gradually increase, the end face of fluid outlet and sealing
The distance between plane gradually increases；
Actuator is set to the shaft, is rotated in valve body by shaft band dynamic seal, the sealing plane on sealing element is close
Seal second fluid entrance or fluid outlet.
6. a kind of backwash fore filter with switching valve characterized by comprising
Filter body, including filter housings and the filter assemblies being set in filter head housings body, filter housings and mistake
Intake tunnel is formed between filter component；
The described in any item switching valves of Claims 1-4, are set to the filter body, the first fluid entrance with into
Aquaporin is connected, and second fluid entrance and fluid outlet are connected to the inside of filter assemblies respectively；
Blowdown component is set to the filter body and is respectively communicated with the inside of intake tunnel and filter assemblies；
Under filtration condition, the sealing element on transaxle seals second fluid entrance, opens fluid outlet, and blowdown component is closed,
Raw water enters intake tunnel from first fluid entrance and enters inside filter assemblies after filtering component filters and go out from fluid
Mouth outflow；
Under backwashing state, sealing element on transaxle seals fluid outlet, opens second fluid entrance, and raw water is respectively through the
One fluid inlet and second fluid entrance enter inside intake tunnel and filter assemblies, and two bursts of water flows are constantly to filter group
The side wall of part is washed away, and blowdown component is opened after cleaning, and sewage is flowed out out of blowdown component.
7. the backwash fore filter according to claim 6 with switching valve, which is characterized in that the fluid outlet
It is arranged in a staggered manner with second fluid entrance, fluid outlet is located at side of the second fluid entrance far from blowdown component.
8. the backwash fore filter according to claim 6 with switching valve, which is characterized in that described that there is conversion
The backwash fore filter of valve further includes control panel, and the control panel is electrically connected actuator, controls the drive of actuator
Dynamic state.
9. the backwash fore filter according to claim 6 with switching valve, which is characterized in that the blowdown component
Connector, Electronic control ball valve and pollution discharge joint including being connected to filter body end in turn.
10. a kind of backwash fore filter with switching valve characterized by comprising
Filter body, including filter housings and the filter assemblies being set in filter head housings body, filter housings and mistake
Intake tunnel is formed between filter component；
Switching valve described in claim 5, is set to the filter body, and the first fluid entrance is connected with intake tunnel
Logical, second fluid entrance and fluid outlet are connected to filter assemblies inside respectively；
Blowdown component is set to the filter body and is respectively communicated with the inside of intake tunnel and filter assemblies；
Under filtration condition, the sealing element on transaxle seals second fluid entrance, opens fluid outlet, and blowdown component is closed,
Raw water enters intake tunnel from first fluid entrance and enters inside filter assemblies after filtering component filters and go out from fluid
Mouth outflow；
Under backwashing state, sealing element on transaxle seals fluid outlet, opens second fluid entrance, and raw water is respectively through the
One fluid inlet and second fluid entrance enter the inside of intake tunnel and filter assemblies, and two bursts of water flows are constantly to filter
The side wall of component is washed away, and blowdown component is opened after cleaning, and sewage is flowed out out of blowdown component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380794.2U CN208177052U (en) | 2018-03-20 | 2018-03-20 | Switching valve and backwash fore filter with switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820380794.2U CN208177052U (en) | 2018-03-20 | 2018-03-20 | Switching valve and backwash fore filter with switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208177052U true CN208177052U (en) | 2018-12-04 |
Family
ID=64438292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820380794.2U Expired - Fee Related CN208177052U (en) | 2018-03-20 | 2018-03-20 | Switching valve and backwash fore filter with switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208177052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211461A (en) * | 2018-03-20 | 2018-06-29 | 倪秀秀 | Switching valve and the backwash fore filter with switching valve |
-
2018
- 2018-03-20 CN CN201820380794.2U patent/CN208177052U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211461A (en) * | 2018-03-20 | 2018-06-29 | 倪秀秀 | Switching valve and the backwash fore filter with switching valve |
| CN108211461B (en) * | 2018-03-20 | 2023-09-19 | 倪秀秀 | Switching valve and back flush prefilter with switching valve |
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