Water purifier is inverted filter element leakage-proof structure
Technical field
This utility model belongs to water correction plant field, is specifically related to a kind of water purifier inversion filter element and prevents
Drain structure.
Background technology
Conventional water purifier, by a water route sealed, makes former water to be filtered lead at elevated pressures
Cross one or more levels the filter element being made up of filtering material, become after filtering impurity or other harmful substances
" pure water ", drinks for directly drinking or heating or needs the field of water quality safety health for other
Close.Filtering material is typically to be encapsulated in filter flask.Through after a while or the water yield passed through is accumulative reaches
After certain value, the resistance of material for core increases or after activity reduction, filter efficiency is decreased obviously, and needs
To change in time, it is common that change after the filter flask entirety being packaged with filter material is disassembled from water purifier.
During changing filter flask, water route and filter flask are in open-circuit condition, wherein when dismantling, installing
The water of remaining can spill, and makes troubles to user, the excessive circuit often making water purifier of water leakage
Impaired, bring unsafe factor.
Utility model content
The purpose of this utility model is to provide a kind of water purifier that can prevent from leaking when dismantling filter flask
Put filter element leakage-proof structure.
For achieving the above object, this utility model provides techniques below scheme: falling of a kind of water purifier
Putting filter element leakage-proof structure, described water purifier includes support and filter flask, and described filter flask is reverse mounted at support
On, described support is provided with water source interface and pure water interface, and described filter flask is provided with water inlet and goes out
The mouth of a river, described water inlet connects with water source interface, and outlet and pure water orifice, current pass through
Water source interface flows into filter flask, flows into pure water interface from outlet after filter element filtering, described filter flask
Water inlet and outlet are respectively equipped with the first check valve assembly and the second check valve assembly, and described first is single
Turning in bottle to valve module, the second check valve assembly turns on outside bottle, under atmospheric pressure state first,
Two check valve assemblies are closed mode, when the water inlet of filter flask is connected with the water source interface of support,
First check valve assembly can be opened by the one-way valve crown on support, the second check valve assembly can be
Open under hydraulic pressure effect;
Preferably, described support is additionally provided with the 3rd check valve assembly, described 3rd check valve assembly bag
Including spool, stage clip and top cover, stage clip loads spool roundlet styletable, and the other end of stage clip loads top cover
Cylindrical inside, described spool is positioned in the pipeline of support;Spool upper end is provided with top, and described top is convex
Extending outside pipeline, when not installing filter flask, the pipeline of support closes under spool effect, when filter flask is pacified
When being contained on support, top can move downward by band movable valve plug under the suppressing action of filter flask bottleneck, makes
The pipeline conducting of support;Withstand on described first check valve assembly simultaneously, make the first check valve group
Part turns on;
Preferably, described support is additionally provided with swivel joint, described water source interface, pure water interface and
3rd check valve assembly is respectively positioned on swivel joint, and described filter flask is connected with swivel joint, it is possible to rotation
Adaptor swings;
Preferably, the amplitude of fluctuation of described swivel joint is 20 °-30 °;
Preferably, described valve core upper sleeve is equipped with sealing ring, and when spool closes, sealing ring is close with support
End-blocking contact;
Preferably, described first check valve assembly includes silica gel plug, the first stage clip and valve core case;Silicon
The cylindrical end of glue plug loads inside the first stage clip, and the cylindrical end of valve core case loads another of the first stage clip
End is internal, and whole first check valve assembly is contained at the water inlet position of filter flask, silica gel plug and filter flask
Inner part inclined-plane is formed and seals, and valve core case touches with filter flask inner part flat face, middle by the first stage clip
Controller perturbation;
Preferably, described second check valve assembly includes that square top, the second stage clip and the second silica gel are stifled
Head;The cylindrical end of the second silica gel plug loads inside the second stage clip, and the cylindrical end of square top loads the
Inside the other end of two stage clips, whole second check valve assembly is arranged on the outlet position of filter flask, the
Second silica gel plug is formed with filter flask inner part inclined-plane and seals, square top and filter flask inner part flat face
Touch, middle by the second stage clip controller perturbation;
Preferably, under filter flask before pressure, between existing between top and the filter flask lower surface of described spool
Gap, during so that filter flask pressure certain distance, sealing member produce certain sealing force, spool just starts to be subject to
Check valve is opened in compression;
Preferably, the depression stroke that the stroke of described spool is installed more than filter flask, it is to avoid install with filter flask
Space interferes;
Preferably, snap fit spiral or with the level is used to be connected between described filter flask and support.
Of the present utility model having the technical effect that is respectively provided with check valve assembly on support and filter flask, when
When filter flask separates with support, check valve closes, and prevents water from overflowing, when filter flask is connected with support, single
Turn on to valve, make the water route water conservancy pass through filter element, it is to avoid the circuit caused due to seepage during dismounting filter flask
Damage problem.
Accompanying drawing explanation
Fig. 1 is the structural representation before filter flask of the present utility model is connected with support;
Fig. 2 is the structural representation after filter flask of the present utility model is connected with support;
Fig. 3 is the I partial enlarged view of Fig. 2;
Fig. 4 is the rotational structure schematic diagram of support.
Detailed description of the invention
As Figure 1-4, the inversion filter element leakage-proof structure of a kind of water purifier, described water purifier includes machine
Seat 10 and filter flask 20, described filter flask 20 is reverse mounted on support 10, and described support 10 is provided with
Water source interface 11 and pure water interface 12, described filter flask 20 is provided with water inlet 21 and outlet 22,
Described water inlet 21 connects with water source interface 11, and outlet 22 connects with pure water interface 12, water
Stream flows into filter flask 20 by water source interface 11, flows into pure water from outlet 22 and connect after filter element filtering
Mouth 12, the water inlet 21 of described filter flask 20 and outlet 22 are respectively equipped with the first check valve assembly 23
With the second check valve assembly 24, described first check valve assembly 23 turns in bottle, the second check valve
Assembly 24 turns on outside bottle, and under atmospheric pressure state, first, second check valve assembly 23,24 is closedown
State, when the water inlet 21 of filter flask 20 is connected with the water source interface 11 of support 10, first is unidirectional
Valve module can be opened by the one-way valve crown on support, the second check valve assembly can be in hydraulic pressure effect
Under open.
Preferably, described support 10 is additionally provided with the 3rd check valve assembly 13, described 3rd check valve
Assembly 13 includes spool 131, stage clip 132 and top cover 133, and stage clip 132 loads spool 131 roundlet
Styletable, the other end of stage clip 132 loads the cylindrical inside of top cover 133, and described spool 131 is positioned at machine
In the pipeline of seat 10;Spool 131 upper end is provided with top 134, and described top 134 protrudes out to outside pipeline
Portion, when not installing filter flask 20, the pipeline of support 10 closes under spool 131 acts on, when filter flask 20
When being arranged on support 10, top 134 can be under bottleneck end face 201 suppressing action of filter flask 20
Band movable valve plug 131 moves downward, and makes the pipeline of support 10 turn on, and top 134 withstands on described the simultaneously
On one check valve assembly 23, the first check valve assembly 23 is made to turn on.During assembling, first by sealing ring 135
Load the big cylindrical end of spool 131, next stage clip 132 is loaded spool 131 roundlet styletable, then
The other end of stage clip 135 is loaded the cylindrical inside of top cover 133, then semi-finished product module now is filled
Enter base inner, finally by top cover 133 and support 10 ultra-sonic welded, sealing ring 135 and support 10
Inner plane is formed and seals, middle by stage clip 132 controller perturbation.During work (during dress filter element), filter element
Head top is to spool 131 so that spool 131 moves to stage clip 132 direction with sealing ring 135, water
Circulation road is opened.During dismounting filter element, stage clip 132 spring return, by spool 131 and sealing ring 135
Pushing support sealed end to, sealing ring 135 contacts again with support 10 plane, is formed and seals, it is ensured that water
Stream will not spill.
Preferably, described support 10 is additionally provided with swivel joint 14, described water source interface 11, pure
Water interface 12 and the 3rd check valve assembly 13 are respectively positioned on swivel joint 14, described filter flask 20 and rotation
Adaptor 14 connects, it is possible to swing with swivel joint 14.
Preferably, the amplitude of fluctuation of described swivel joint 14 is 20 °-30 °.
Preferably, described spool 131 is set with sealing ring 135, when spool 131 closes, close
Seal 135 contacts with support 10 sealed end.
Preferably, described first check valve assembly 23 includes silica gel plug, the first stage clip and valve core case;
The cylindrical end of silica gel plug loads inside the first stage clip, and the cylindrical end of valve core case loads the another of the first stage clip
Inside one end, whole first check valve assembly is contained at the water inlet position of filter flask, silica gel plug and filter
Bottle inner part inclined-plane is formed and seals, and valve core case touches with filter flask inner part flat face, middle by the first pressure
Spring controller perturbation.During assembling, first silica gel plug cylindrical end is loaded inside the first stage clip, then by spool
Seat cylindrical end loads inside the other end of the first stage clip, finally whole semi-finished product module is put into filter element
In parts, silica gel plug is formed with filter element inner part inclined-plane and seals, valve core case and filter element inner part plane
Contact, middle by the first stage clip controller perturbation.During work, silica gel plug is pressed to first under hydraulic pressure
Spring end moves, and valve core case maintains static, and the first stage clip forced compression, water stream channel is opened.Hydraulic pressure disappears
Missing the season, the first stage clip recovers elastic force, and valve core case maintains static, and silica gel plug moves to opposite direction, with
Filter element inner part contacts again, is formed and seals, it is ensured that current will not spill.
Preferably, described second check valve assembly 24 includes square top, the second stage clip and the second silica gel
Plug;The cylindrical end of the second silica gel plug loads inside the second stage clip, and the cylindrical end of square top loads
Inside the other end of the second stage clip, whole second check valve assembly is arranged on the outlet position of filter flask,
Second silica gel plug is formed with filter flask 20 inner part inclined-plane and seals, square top and filter flask 20 inner part
Flat face touches, middle by the second stage clip controller perturbation.During assembling, first by the second silica gel plug cylinder
End loads inside the second stage clip, then is loaded by square cylindrical end inside the other end of the second stage clip, finally
Whole semi-finished product module is put into filter element inner part, the second silica gel plug and filter element inner part scarf
Becoming to seal, square top is touched with filter element inner part flat face, middle by the second stage clip controller perturbation,
During work, the second silica gel plug moves to stage clip end under hydraulic pressure, and square top maintains static, and second
Stage clip forced compression, water stream channel is opened.When hydraulic pressure disappears, the second stage clip recovers elastic force, square top
Head maintains static, and the second silica gel plug moves to opposite direction, again contacts with filter element inner part, is formed
Seal, it is ensured that current will not spill.
Preferably, before 20 times pressures of filter flask, top 134 and the filter flask of described spool 131 20 times
Gap is there is between end face, during so that certain distance depressed by filter flask 20, sealing member produces certain sealing force,
Spool 131 just starts to be opened check valve by compression.
Preferably, the depression stroke that the stroke of described spool 131 is installed more than filter flask 20, it is to avoid with filter
Bottle installing space interferes.
Preferably, clamping side spiral or with the level is used between described filter flask 20 and support 10
Formula connects.
This utility model is respectively provided with check valve assembly on support 10 and filter flask 20, when filter flask 20 and machine
When seat 10 separates, check valve closes, prevents water from overflowing, when filter flask 20 is connected with support 10, single
Turn on to valve, make the water route water conservancy pass through filter element, it is to avoid the electricity caused due to seepage during dismounting filter flask 20
Path loss bad problem.