The filter core quick replacement device
Technical field
The present invention relates to the filter core quick replacement device, particularly can be used for the filter core quick replacement device of multistage filtering system.
Background technology
In chemical industry, biology, lifestyle device, often use the multistage filtering system, for example water purifier is made up of the filter core of 3-5 series connection usually, and the water that needs to filter filters through the filter core of series connection successively.Between the existing filter core, connect with joint usually.Between joint and the filter core, employing is threaded.But the system that the joint of traditional structure and filter core are formed has following deficiency in use: the one, and complex structure, because part causes mechanism reliability to descend more, the 2nd, more maintenance technology requires highly during renew cartridge, often needs the professional to operate; The 3rd, when a certain filter core need be changed, need cut off the water earlier or stop the supple of gas or steam, influence the operating efficiency of system.
Summary of the invention
One of the object of the invention is to provide and need not can carry out under the situation of cutting off the water the filter core quick replacement device that filter core is changed.
Another object of the present invention is to provide a kind of multistage filtering system of fast changeable filter core.
Technical scheme provided by the invention is following:
The filter core quick replacement device, it comprises:
At least one filter core unit, it removably is fixedly connected with connector unit, has at least one fluid inlet and at least one fluid issuing;
At least one connector unit, it has at least one fluid inlet and at least one fluid issuing; Said connector unit comprises that a joint and is located at the division box in the joint; The position that is fixedly connected with connector unit in the filter core unit; Said division box is switched to the fluid that gets in the connector unit fluid inlet fluid inlet of filter core unit; The fluid issuing of filter core unit is switched to the fluid issuing of connector unit, make fluid get into connector unit after, flow out from the fluid issuing of connector unit again through the filter core unit earlier; Break away from the position of connector unit in the filter core unit, this division box directly is communicated with the fluid inlet of this connector unit and the fluid issuing of connector unit, make fluid get into connector unit after, directly from the fluid issuing outflow of connector unit.
In a preferred embodiment, said connector unit is connected through snap device with said filter core unit.
In a preferred embodiment, described snap device comprises:
Be positioned at least one convexity on the outer perimeter wall of top, filter core unit;
The chute of this convexity turnover of confession that at least one convexity that is positioned at connector unit inwall and filter core unit cooperates; And
Be positioned at least one horizontal draw-in groove that is used for the clamping convexity that said chute one side and said chute are communicated with.
In a preferred embodiment, the joint of said connector unit comprises that a shell and is sheathed on the inner core of this shell, and a gap is arranged between shell and the inner core; Said shell two side is established at least one fluid inlet and at least one fluid issuing respectively, and described fluid inlet and fluid issuing are communicated with through the inner chamber of an interior pipe and said inner core respectively; Said inner core comprises at least one first import corresponding with the fluid inlet of shell, and at least one first outlet corresponding with the shell fluid issuing, also comprises second outlet that gap at least one and shell, inner core is connected.
In a preferred embodiment, described first exit position is lower than first import, and second exit position is higher than first import.
In a preferred embodiment, said division box is sheathed in the inner core of said joint, and it comprises:
One fen water axle, it comprises lower flange that upper flange that a hollow axis body, is convexly equipped with around hollow axis body, is convexly equipped with around hollow axis body and axis body once, the inwall of described upper flange and lower flange and inner core is tightly connected slidably; And,
One elastomer, it is sheathed in the chamber of said hollow axis body and stretches out in the chamber of this hollow axis body.
In a preferred embodiment, also comprise a upper cover body, it is fixed in the top of said shell, this upper cover plate bottom have one be used for fixing the spring top cylinder; Also comprise a lower cover, the lower end that it is fixed in the inner core of said joint is provided with an axial through hole.
In a preferred embodiment, described filter core unit comprises cylinder top cover and the cylindrical shell lower cover that links together, and the filter core that is sealed in cylinder top cover and the cylindrical shell lower cover, and described cylinder top cover top outer perimeter wall is provided with at least one convexity.
A kind of multistage filtering system, it has used aforesaid filter core quick replacement device.
Can be known that by foregoing description the invention provides a kind of filter core quick replacement device, the present invention adopts buckle structure to replace thread connecting joint, installation and replacing are all more quick, and tube just.Owing in joint, adopted division box, be connected to the connector unit position at the filter core unit card, said division box is switched to the filter core unit inlet with the fluid that gets in the connector unit fluid inlet, the outlet of filter core unit is switched to the outlet of connector unit; Break away from the position of connector unit in the filter core unit, this division box directly is connected the import of this connector unit and the outlet of connector unit, seals the filter core unit interface simultaneously.Therefore, can be under the situation that does not influence the water route renew cartridge more fast, simplified the more operation of renew cartridge; Even after taking off filter core, filter core is not installed can be kept the water route unobstructed yet.The present invention more work of renew cartridge need not professional's operation, greatly reduces the maintenance technology requirement of multistage filtering systems such as water purifier.
Description of drawings
Fig. 1 is the perspective view of the embodiment of the invention;
Fig. 2 is the blast structural representation of filter core of the present invention unit;
Fig. 3 is the blast structural representation of connector unit of the present invention;
Fig. 4 is the perspective view of joint;
Fig. 5 is for dividing the perspective view of water axle;
Fig. 6 is one of cutaway view after the connector unit assembling;
Fig. 7 is two of the cutaway view after the connector unit assembling, and arrow shows water (flow) direction;
Fig. 8 is the perspective view of user mode of the present invention;
Fig. 9 be among Fig. 8 along the cutaway view of A-A direction, arrow shows water (flow) direction among the figure;
Figure 10 is the partial enlarged drawing of Fig. 9.
The specific embodiment
Specific embodiment of the present invention, referring to figs. 1 through Fig. 7, the filter core quick replacement device of a kind of multistage filtering system is used for water purifier, and it comprises the filter core unit and the connector unit of a plurality of series connection.
This filter core unit comprises cylinder top cover 1, cylindrical shell lower cover 2 and filter core 3.Cylinder top cover 1 is tightly connected with cylindrical shell lower cover 2, and filter core 3 is assembled in the cavity of cylinder top cover 1 and the composition of cylindrical shell lower cover 2.Wherein the root of the filter tip 32 of filter core 3 is provided with a sealing ring 31.Cylinder top cover 1 external wall of upper portion convexes with a pair of symmetrically arrangedly protruding 11 and 12, leans on the outer wall on top, is provided with the twice groove, and sealing ring 13 and 14 are set respectively in the groove.The internal sleeve of this cylinder top cover 1 is provided with an inner core 17; Form water inlet 16 between inner core and the outer wall; The inner cavity 18 that forms of inner core, the upper end of cavity 18 is the delivery port of inner core loam cake, the inwall of inner core in cavity 18, convex with one be used to push up branch water axle 7 rib 15.The upper end spiral of the lower end of inner core 17 and filter core 3 is connected and seals with sealing ring 31.
This connector unit comprises upper cover body 4, joint 5, spring 6, divides water axle 7 and lower cover 8.
Joint comprises that a shell 50 and is sheathed on the inner core 53 of this shell 50, and a gap 501 is arranged between shell 50 and the inner core 53; Said shell two side is established a fluid import 51 and fluid outlet 52 respectively, and this fluid inlet 51 is communicated with through the inner chamber of an interior pipe and said inner core respectively with fluid issuing 52; Said inner core 53 comprises first import 531 corresponding with the fluid inlet of shell 51; And first outlet 532 corresponding with shell fluid issuing 52; Also comprise one be connected with the gap of shell, inner core second the outlet 533; Wherein these first outlet, 532 positions are lower than first import 531, the second outlet, 533 positions and are higher than first import 531.
A filter core unit interface is established in these shell 50 bottoms, and it is provided with the chute 54,56 that a pair of this convexity 11,12 of confession that is positioned at convexity 11,12 cooperations of inwall and filter core unit cylinder top cover 1 passes in and out; And the horizontal draw-in groove 55,57 that is used for the clamping convexity that lays respectively at said chute 54,56 1 sides and 54,56 connections of said chute.
Upper cover body 4 is welded on the top of joint 5 hermetically, and the bottom central of upper cover body 4 is provided with a projection 41, and an end of spring 6 is sheathed on this projection 41, and the other end is inserted in the hollow axis body 71 of minute water axle 7.
This lower cover 8 is welded on inner core 53 lower ends of joint 5, and its center is provided with axial through hole 82, and the bottom outer wall is provided with sealing ring 81.
Spring 6 is formed division boxs with branch water axle 7, wherein:
Divide water axle 7 to be located at hermetically in the inner core 53 of joint 5; It comprises a hollow axis body 71; Lower flange 73 that one upper flange that is convexly equipped with around hollow axis body 72, is convexly equipped with around hollow axis body and axis body 78 once, this upper flange 72 along the circumferential direction encircles and establishes a groove 74, establishes sealing ring 75 in the groove 74; Lower flange 73 along the circumferential direction encircles and establishes a groove 76, establishes sealing ring 77 in the groove 76.
Referring to Fig. 6 and Fig. 7, when not inserting cartridge systems, the upper flange 72 of the branch water axle 7 in joint 5 inner cores 53 is located between second outlet, 533 and first import 531 hermetically; Lower flange 73 is located between the through hole 82 and first outlet 532 hermetically; At this moment, current get into from import 51, flow in the inner core 53 from first import 531; Because the upper and lower side of this inner core 53 is respectively by the upper and lower flange 72 of minute water axle 7 and 73 sealings; Current flow out from first outlet 532 of inner core 53 directly from the spatial flow mistake between the upper and lower flange again, flow out from the outlet 52 of shell to get into next unit.
Simultaneously referring to Fig. 8 to Figure 10.After inserting cartridge systems; The lower shaft 78 that rib 15 in the cylinder top cover 1 will divide water axle 7 is jack-up upwards; Spring 6 is compressed, and the position of upper flange 72 is higher than second outlet 533 of inner core 53, and lower flange 73 is stuck between first import 531 and first outlet 532 hermetically.At this moment, current get into inner core 53 from first import 531 again from import 51; Because lower flange 73 is stuck between first import 531 and first outlet 532 hermetically, and the position of upper flange 72 is higher than second outlet 533 of inner core 53, so current flow out from second outlet 533; Get into the space 501 between inner core 53 and the shell 50, the import 16 that gets into cylinder top cover again gets into filter core 3 afterwards and filters; Get into the delivery port 18 of cylinder top cover from the outlet on the top of filter core 3; In the through hole 82 of lower cover 8,, get into next unit after first outlet 532 flows to outlet 52.
When needs replacement filter core, only need rotary barrel loam cake 1, the convexity 11,12 of cylinder top cover 1 is slided into the chute 54,46 from the horizontal draw-in groove 55,57 of joint 5 respectively, whole filter core unit can break away from connector unit.At this moment; Spring is unfolded, and promotes to divide water axle 5 to move down, and the upper flange 72 of the branch water axle 7 in joint 5 inner cores 53 is located between second outlet, 533 and first import 531 again hermetically; Lower flange 73 also is located between the through hole 82 and first outlet 532 hermetically; Promptly got back to the state among Fig. 7 again, can directly from spatial flow mistake upper and lower flange between from first outlet 532 of inner core 53 flow out again from the current that first import 531 flows in the inner core 53 this moment again.
Above-mentionedly be merely a specific embodiment of the present invention, but design concept of the present invention is not limited thereto, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.