CN213652062U - Double-rotation leakage-proof filtering device and water purifier - Google Patents

Abstract

The utility model discloses a double-rotation leakage-proof filtering device and a water purifier, wherein the filtering device comprises a water channel plate and a filter element arranged on the water channel plate, the water channel plate is provided with a first water flow channel and a first rotating seat which is rotatably arranged in the water channel plate and is used for switching on or off the first water flow channel; the filter element is provided with a second water flow channel and a second rotating seat which is rotatably used for switching on or off the second water flow channel in the filter element; the first rotating seat of the water channel plate can be connected and communicated with the second rotating seat of the filter element, and the first water channel and the second water channel are communicated after rotation. The utility model discloses make the filter equipment of water purifier have two rotatory leak protection functions, realized the water purifier at standby state, do not close water source, power, need not the pressure release, function that direct renew cartridge can not leak yet.

Description

Double-rotation leakage-proof filtering device and water purifier

Technical Field

The utility model relates to a filtration equipment technical field especially relates to a two rotatory leak protection filter equipment and water purifier.

Background

Although the current household tap water is treated by a tap water plant, small-particle impurities such as organic matters, heavy metal ions, iron filings and the like exist after the household tap water is conveyed to a household through a pipe network, and the household water purifier is produced as long as people eat the household tap water and harm human health.

The water purifier generally includes the casing and sets up the filter equipment in the casing, and filter equipment generally comprises water route board and installs the filter core on the water route board, adopts grafting, joint or screwed connection between filter core and the water route board.

External raw water flows in from the water channel plate and then flows into the filter element through the water channel plate, and the raw water is filtered by the filter element to obtain purified water and then flows out through the water channel plate.

Current water flow channel that water route board and filter core are connected all is direct intercommunication and does not have leak protection mechanism, takes out the filter core like this and gets the back, and water in water route board and the filter core all can spill over, influences the use and experiences.

Therefore, the prior art has yet to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, the utility model aims to provide a two rotatory leak protection filter equipment and water purifier aims at making the filter equipment of water purifier have two rotatory leak protection functions, has realized the water purifier at standby state, does not close water source, power, need not the pressure release, and direct renew cartridge can not the function of leaking yet.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a double-rotation leakproof filter device comprises a water circuit board and a filter element arranged on the water circuit board, wherein,

the water channel plate is provided with a first water channel and a first rotating seat which is rotatably used for switching on or off the first water channel in the water channel plate;

the filter element is provided with a second water flow channel and a second rotating seat which is rotatably used for switching on or off the second water flow channel in the filter element;

the first rotating seat of the water channel plate can be connected and communicated with the second rotating seat of the filter element, and the first water channel and the second water channel are communicated after rotation.

The filter element is screwed in the water flow plate and is communicated or disconnected between the first water flow channel and the second water flow channel through continuous two times of same-direction rotation.

The water circuit board comprises a first fixed seat and a first rotating seat contacted with the first fixed seat, a filter element mounting opening is formed in the first fixed seat and used for mounting the first rotating seat, a first water flow channel penetrates through the first fixed seat and the first rotating seat, and the first rotating seat rotates relative to the first fixed seat in the filter element mounting opening so as to conduct or shut off the first water flow channel;

the filter core includes the barrel and sets up the second fixing base in the barrel, and the second roating seat with the contact of second fixing base, second water flow channel wears to establish second fixing base and second roating seat, and the second roating seat is rotatory in order to switch on or turn off in the barrel relative to the second fixing base the second water flow channel.

The first fixing seat is provided with a first rotation limiting groove in the filter element mounting opening, the lower end face of the first rotating seat is provided with a first limiting rod, and the first limiting rod is inserted into the first rotation limiting groove and rotates within a preset length range of the first rotation limiting groove so that the first rotating seat rotates relative to the first fixing seat within the range;

the lower end face of the second fixing seat is provided with a second rotary limiting groove, the upper end face of the second rotary seat is provided with a second limiting rod, and the second limiting rod is inserted into the second rotary limiting groove and rotates within a preset length range of the second rotary limiting groove, so that the second rotary seat rotates relative to the second fixing seat within the range.

The first water flow channel is provided with a first fixed seat water inlet hole and a first fixed seat water outlet hole on the first fixed seat, a first rotating seat water inlet hole and a first rotating seat water outlet hole on the first rotating seat, and when the first rotating seat rotates relative to the first fixed seat, the first fixed seat water inlet hole and the first rotating seat water inlet hole are enabled to be aligned or staggered;

the second water flow channel is provided with a second fixing seat water inlet hole in a penetrating mode on the second fixing seat, a second fixing seat water outlet hole, a second rotating seat water inlet hole and a second rotating seat water outlet hole in a penetrating mode on the second rotating seat, the second rotating seat water outlet hole enables the second fixing seat water inlet hole and the second rotating seat water inlet hole to be aligned or staggered when the second rotating seat rotates relative to the second fixing seat.

Wherein, first roating seat upwards extends and is provided with the spliced pole and the play water spliced pole of intaking with first roating seat inlet opening, first roating seat apopore intercommunication, second roating seat downwardly extending is provided with the connecting hole of intaking and the connecting hole of going out of intercommunication with second roating seat inlet opening, second roating seat apopore, the spliced pole of intaking and the connecting hole plug-in connection of intaking, go out water spliced pole and a connecting hole plug-in connection of going out water.

The first fixing seat is connected with a hollow cover plate used for shielding the first rotating seat on the filter element mounting opening, a first screw-in chute and a second screw-in chute are arranged on the inner side wall of the cover plate at intervals in the circumferential direction, a first positioning opening and a first positioning wall are arranged on the first screw-in chute at intervals, and a second positioning opening and a second positioning wall are arranged on the second screw-in chute at intervals;

the lower extreme of barrel is provided with connecting portion, and the annular space is provided with first screw in arch and second screw in arch on the connecting portion, is provided with first locating piece and second locating piece on first screw in arch and the second screw in arch respectively, and first locating piece is packed into from first locating hole and is made first screw in protruding screw in first screw in chute, and the second locating piece is packed into from the second locating hole and is made second screw in protruding screw in second screw in chute.

Wherein, the interval between first location mouth and the first location wall is different with the interval between second location mouth and the second location wall.

The water circuit board further comprises a hollow pressing plate arranged between the first rotating seat and the cover plate, the pressing plate covers the first rotating seat, and the cover plate presses the pressing plate tightly;

the filter element also comprises a bracket arranged in the cylinder body, a filter screen or a filter membrane arranged on the bracket, a connecting nozzle arranged in the cylinder body and used for connecting the bracket and the second fixed seat, and a hollow retainer ring arranged on the lower end surface of the cylinder body and used for shielding the second rotary seat;

a plurality of first sealing rings are arranged at the joint of the first water flow channel between the first fixed seat and the first rotating seat;

and a plurality of second sealing rings are arranged at the joint of the second water flow channel between the second fixed seat and the second rotating seat.

The utility model also provides a water purifier, including the casing, wherein, be provided with aforementioned double-rotation leak protection filter equipment in the casing.

The utility model discloses a two rotatory leak protection filter equipment through set up rotatable first roating seat in the water route inboard, sets up rotatable second roating seat in the filter core, and the filter core is installed behind the water route board, and first roating seat and second roating seat are connected and are switched on to rotary motion through first roating seat and second roating seat switches on or turn-offs the first rivers passageway of water route board and the intercommunication between the second rivers passageway of filter core. Like this, when taking out the filter core, need rotate first roating seat earlier and the first rivers passageway of turn-offs respectively of second roating seat and second rivers passageway, then take off the filter core, filter core and water route board this moment all can not leak, during the installation filter core, connect first roating seat and second roating seat earlier, then follow former direction of rotation antiport and then can switch on first rivers passageway and second rivers passageway, thereby make filter equipment normal business turn over water, realized the water purifier at standby state, do not close the water source, a power supply, need not the pressure release, directly change the function that the filter core can not leak yet. The utility model discloses a filter equipment is because first roating seat and second roating seat all can rotate and have dual-rotation function to make water route board and filter core all have independent leak protection function, the dismouting of the filter core of being convenient for is maintained.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of a first embodiment of a double-rotation leakproof filter device of the present invention;

FIG. 2 is a schematic view of the cartridge of FIG. 1 mounted to a waterway plate in a double rotation;

FIG. 3 is an exploded view of the structure of FIG. 1;

FIG. 4 is a schematic structural view of a second embodiment of the double-rotation leakproof filter device of the present invention;

FIG. 5 is an exploded view of the circuit board of FIG. 3;

FIG. 6 is an exploded view of the first fixed base and the first rotatable base shown in FIG. 5;

FIG. 7 is an exploded view of the second stationary base and the second rotatable base shown in FIG. 3;

FIG. 8 is an exploded view of the first and second rotatable bases of FIG. 3;

FIG. 9 is a top view of the cover plate of FIG. 5;

FIG. 10 is a schematic side view of the cover plate of FIG. 5;

FIG. 11 is a bottom view of the cover plate of FIG. 5;

FIG. 12 is a first partial schematic view of the bottom of the cartridge;

FIG. 13 is a second partial schematic view of the bottom of the cartridge;

FIG. 14 is a schematic structural view of a first embodiment of a water purifier according to the present invention;

fig. 15 is a schematic view of the internal structure of the water purifier of the present invention.

Description of reference numerals:

100-filtering device, 1-water channel plate, 11-first water flow channel, 111-first fixed seat water inlet, 112-first fixed seat water outlet, 113-first rotary seat water inlet, 114-first rotary seat water outlet, 12-first rotary seat, 121-first limiting rod, 122-water inlet connecting column, 123-water outlet connecting column, 124-wastewater connecting column, 13-first fixed seat, 131-filter element mounting port, 132-first rotary limiting groove, 14-cover plate, 141-first screw-in chute, 1411-first positioning port, 1412-first positioning wall, 142-second screw-in chute, 1421-second positioning port, 1422-second positioning wall, 1431-guide inclined block, 1432-spiral groove, 1433-first stopper, 1434-a second stop block, 15-a pressing plate, 2-a filter element, 21-a second water flow channel, 211-a second fixed seat water inlet, 212-a second fixed seat water outlet, 213-a second rotary seat water inlet, 214-a second rotary seat water outlet, 22-a second rotary seat, 221-a second limit rod, 222-a water inlet connecting hole, 223-a water outlet connecting hole, 224-a wastewater connecting hole, 23-a second fixed seat, 231-a second rotary limit groove, 24-a cylinder body, 25-a connecting part, 251-a first screwing-in bulge, 2511-a first locating block, 252-a second screwing-in bulge, 2521-a second locating block, 253-an oblique bulge, 254-a transverse bulge, 26-a bracket, 27-a filter screen or a filter membrane, 28-a connecting nozzle, 29-a retainer ring, 31-a first sealing ring, 32-a second sealing ring, 300-a water purifier, 301-a shell and 302-a tourmaline water-activating device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "connected" may be a fixed connection or a removable connection, or may be integral therewith; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 3, the present invention provides a dual-rotation leakage-proof filtering device 100, which includes a circuit board 1 and a filter element 2 installed on the circuit board 1. The water circuit board 1 is used for externally connecting a water inlet pipeline and a water outlet pipeline, and is used for installing and connecting the filter element 2 to provide raw water for the filter element 2 and receive purified water flowing out of the filter element 2. A filter screen or a filter membrane is arranged in the filter element 2 to filter and purify the water inlet.

The waterway plate 1 is provided with a first water flow channel 11 and a first rotary seat 12 which is rotatably arranged in the waterway plate 1 and is used for switching on or off the first water flow channel 11. Namely, after the first rotating base 12 of the water channel plate 1 rotates by a certain angle, the first water flow channel 11 of the water channel plate 1 is switched on or off, so as to switch on or off external water inlet and outlet. When the water way plate is turned off, the water way plate 1 is prevented from overflowing and leaking at the position connected with the filter element 2 after the filter element 2 on the water way plate 1 is taken down.

The filter element 2 is provided with a second water flow passage 21, and a second rotary seat 22 rotatably provided in the filter element 2 for turning on or off the second water flow passage 21. That is, after the second rotary seat 22 of the filter element 2 rotates a certain angle, the second water flow channel 21 of the filter element 2 is switched on or off, so as to guide the water inlet and outlet of the water channel plate 1 and the filter element 2, or to switch off the water inlet and outlet of the water channel plate 1 and the filter element 2. When the water filter is turned off, water is prevented from overflowing and leaking from the connecting position of the filter element 2 and the water channel plate 1 after the filter element 2 is taken down.

The first rotary seat 12 of the water channel plate 1 and the second rotary seat 22 of the filter element 2 can be connected and communicated, and the communication between the first water flow channel 11 and the second water flow channel 21 is switched on or off after the first rotary seat 12 and the second rotary seat are rotated. That is, the utility model discloses a water route board 1 and filter core 2 of filter equipment 100 are connected through first roating seat 12 and second roating seat 22, then first rivers passageway 11 switch on completely or turn-off completely with second rivers passageway 21 behind rotatory first roating seat 12, the second roating seat 22, switch on the back completely, and water just can flow into in the filter core 2 from water route board 1. If the water is not completely conducted, for example, after the first rotary seat 12 rotates a certain angle, the first water flow channel 11 is already conducted, but the second rotary seat 22 does not rotate, so that the second water flow channel 21 is still in the off state, the water can flow out from the waterway plate 1, but cannot flow into the filter element 2, and is blocked by the first rotary seat 22 of the filter element. The same is true in the case of the shutdown, if the second water flow channel 12 is not completely shut off, for example, after the second rotary seat 22 rotates a certain angle, but the first rotary seat 12 does not rotate so that the first water flow channel 21 is still in the conducting state, water can spill out from the waterway plate 1 after the filter element 2 is taken out.

The utility model discloses a filter equipment 100, because be provided with rotatable first roating seat 12 and second roating seat 22 on water route board 1 and the filter core 2 respectively, make this filter equipment 100 have the dual rotation function, and make water route board and filter core all have independent leak protection function, dismantle filter core 2 back promptly, filter core 2 can not leak, water route board 1 can not leak yet, like this, at the water purifier at standby state, do not close the water source, the power, without the pressure release, direct renew cartridge 2 can not leak yet.

Simultaneously because the cooperation of first roating seat 12 and second roating seat 22 is used, make the utility model discloses a filter equipment 100 has the function that jointly the leak protection switches on with uniting, when taking off filter core 2 leak protection promptly, needs first roating seat 12 and second roating seat 22 all to rotate and turn off various rivers passageway, and when switching on, needs first roating seat 12 and second roating seat 22 all to rotate and switch on various rivers passageway, and rotatory first roating seat 12 or second roating seat 22 can't accomplish alone and turn off or switch on the function.

The utility model discloses a filter equipment 100 is when taking out filter core 2, need rotate second roating seat 22 earlier and first roating seat 12 and turn off second rivers passageway 21 and first rivers passageway 11 respectively, then take off filter core 2, filter core 2 and water route board 1 this moment all can not leak, when installing filter core 2, connect second roating seat 22 and first roating seat 12 earlier, then can switch on first rivers passageway 11 and second rivers passageway 12 along former direction of rotation reverse rotation, thereby make filter equipment 100 normally pass in and out water. The utility model discloses a filter equipment 100's dual-rotation leak protection mode, the dismouting of the filter core 2 of being convenient for is maintained.

Further, as shown in fig. 2, the filter element 2 of the filtering apparatus 100 of the present invention is screwed into the water channel plate 1, and is turned on or off by rotating in the same direction twice continuously to communicate between the first water channel 11 and the second water channel 21.

The two same rotations are that the first rotating base 12 rotates by a first angle, and then the second rotating base 22 rotates by a second angle along the rotating direction; alternatively, the second rotating base 22 is rotated by a first angle, and then the first rotating base 12 is rotated by a second angle along the rotating direction.

The on is one rotational direction and the off is the opposite rotational direction; when the switch is turned on, the second rotary base 22 rotates clockwise by a first angle, and the first rotary base 12 rotates clockwise by a second angle based on the first angle. The first angle and the second angle of rotation may together be 90 degrees.

As an embodiment, as shown in fig. 2, the filter cartridge 2 is moved downward to be aligned with the installation position of the water passage plate 1, and then the filter cartridge 2 is rotated clockwise as a whole so that the second rotary base 22 is rotated by 45 degrees, and then the filter cartridge 2 is rotated clockwise as a whole so that the first rotary base 22 is rotated by 45 degrees. After the two are rotated clockwise by 90 degrees in total, the first water flow channel 11 and the second water flow channel 21 are completely communicated. If the filter element 2 is removed, the filter element 2 is rotated in the opposite direction.

The utility model discloses a water route board 1 can be just installed a filter core 2 as the structure of fig. 1, also can be a plurality of filter cores 2 of integrated structure installation as fig. 4.

Specifically, as shown in fig. 3, the water channel plate 1 includes a first fixing seat 13 and a first rotating seat 12 contacting with the first fixing seat 13, the first fixing seat 13 is provided with a filter element mounting opening 131 for mounting the first rotating seat 12, the first water channel 11 penetrates through the first fixing seat 13 and the first rotating seat 12, and the first rotating seat 12 rotates in the filter element mounting opening 131 relative to the first fixing seat 13 to turn on or off the first water channel 11.

The filter element 2 comprises a cylinder body 24, a second fixed seat 23 arranged in the cylinder body 24, and a second rotating seat 22 contacted with the second fixed seat 23, the second water flow channel 21 penetrates through the second fixed seat 23 and the second rotating seat 22, and the second rotating seat 22 rotates relative to the second fixed seat 23 in the cylinder body 24 to be connected or disconnected with the second water flow channel 21.

Further, as shown in fig. 5 and fig. 6, the first water channel 11 is provided with a first fixing seat water inlet 111 on the first fixing seat 13, a first fixing seat water outlet 112, a first rotating seat water inlet 113 on the first rotating seat 12, and a first rotating seat water outlet 114, so that the first fixing seat water inlet 111 and the first rotating seat water inlet 113 are formed when the first rotating seat 12 rotates relative to the first fixing seat 13, and the first fixing seat water outlet 112 is aligned with or staggered with the first rotating seat water outlet 114. When the first fixing seat water inlet 111 and the first rotating seat water inlet 113 are aligned, and the first fixing seat water outlet 112 and the first rotating seat water outlet 114 are aligned, the first water flow channel 11 of the water circuit board 1 is communicated to normally feed and discharge water; when the first fixing seat water inlet 111 and the first rotating seat water inlet 113, and the first fixing seat water outlet 112 and the first rotating seat water outlet 114 are staggered, the first water channel 11 of the water channel plate 1 is closed to prevent leakage.

As shown in fig. 7, the second water flow channel 21 is provided with a second fixing seat water inlet 211 and a second fixing seat water outlet 212 on the second fixing seat 23, the second rotating seat 22 is provided with a second rotating seat water inlet 213, the second rotating seat water outlet 214, and the second rotating seat 22 makes the second fixing seat water inlet 211 and the second rotating seat water inlet 213 rotate relative to the second fixing seat 23, and the second fixing seat water outlet 212 is aligned with or staggered with the second rotating seat water outlet 214. When the second fixing seat water inlet 211 and the second rotating seat water inlet 213 are aligned, and the second fixing seat water outlet 212 and the second rotating seat water outlet 214 are aligned, the second water flow channel 21 of the filter element 2 is communicated to normally feed and discharge water; when the second fixing seat water inlet 211 and the second rotary seat water inlet 213, and the second fixing seat water outlet 212 and the second rotary seat water outlet 214 are staggered, the second water flow channel 21 of the filter element 2 is turned off to prevent leakage.

Preferably, the first water flow channel 11 may further be provided with a waste water hole penetrating through the first fixed seat 13 and the first rotating seat 12; the second water channel 21 may also be provided with a waste water hole penetrating through the second fixed seat 23 and the second rotating seat 22.

Preferably, as shown in fig. 6, a first rotation limiting groove 132 is disposed in the first fixing seat 13 in the filter element installation opening 131, a first limiting rod 121 is disposed on a lower end surface of the first rotating seat 12, and the first limiting rod 121 is inserted into the first rotation limiting groove 132 and rotates within a preset length range of the first rotation limiting groove 132, so that the first rotating seat 12 rotates relative to the first fixing seat 13 within the range.

As shown in fig. 7, a second rotation limiting groove 231 is disposed on a lower end surface of the second fixing seat 23, a second limiting rod 221 is disposed on an upper end surface of the second rotating seat 22, and the second limiting rod 221 is inserted into the second rotation limiting groove 231 and rotates within a preset length range of the second rotation limiting groove 231, so that the second rotating seat 22 rotates relative to the second fixing seat 23 within the preset length range.

Preferably, the first rotation limiting groove 132 and the second rotation limiting groove 231 are arc-shaped grooves. For example, the first rotation limiting groove 132 is an arc-shaped groove with a predetermined arc length of 45 degrees, and the second rotation limiting groove 231 is also an arc-shaped groove with a predetermined arc length of 4 degrees and 5 degrees.

The arrangement of the first limiting rod 121 and the first rotation limiting groove 132, and the arrangement of the second limiting rod 221 and the second rotation limiting groove 231 enable the first rotating base 12 and the second rotating base 22 to rotate to the right position accurately, so that the on and off control is accurate.

As shown in fig. 8, the utility model discloses filter equipment 100's first roating seat 12 upwards extends and is provided with the spliced pole 122 and the spliced pole 123 of leaving water with first roating seat inlet opening 113, first roating seat apopore 114 intercommunication, second roating seat 22 downwardly extending is provided with the inlet connecting hole 222 and the connecting hole 223 of leaving water that communicate with second roating seat inlet opening 213, the 22 apopores 214 of second roating seat, inlet connecting pole 122 and inlet connecting hole 222 plug-in connection, it connects with the connecting hole 223 plug-in connection to leave water spliced pole 123. And when the filter element 2 is installed on the water circuit board 1, the water inlet connection column 122 and the water inlet connection hole 222, the water outlet connection column 123 and the water outlet connection hole 223 are firstly communicated through the plug connection of the first rotary base 12 and the second rotary base 22.

Preferably, a waste water connection column 124 is further disposed on the first rotary base 12, and a waste water connection hole 224 is further disposed on the second rotary base 22, and the two are connected in a plugging manner, for a filter element 2 having a waste water discharge function, such as an RO membrane filter element.

With reference to fig. 3 and 9 to 11, the first fixing seat 13 of the water circuit board 1 of the present invention is connected to the hollow cover plate 14 for shielding the first rotary seat 12 on the filter element mounting opening 131, and the hollow cover plate 14 exposes the water inlet connecting column 122 and the water outlet connecting column 123. The inner side wall of the cover plate 14 is provided with a first screw-in chute 141 and a second screw-in chute 142 at intervals in the circumferential direction, the first screw-in chute 141 is provided with a first positioning port 1411 and a first positioning wall 1412 at intervals, and the second screw-in chute 142 is provided with a second positioning port 1421 and a second positioning wall 1422 at intervals.

As shown in fig. 12 and 13, the lower end of the cylinder 24 of the filter element 2 of the present invention is provided with a connecting portion 25, a first screwing protrusion 251 and a second screwing protrusion 252 are arranged on the connecting portion 25 at intervals in the circumferential direction, the first screwing protrusion 251 and the second screwing protrusion 252 are respectively provided with a first positioning block 2511 and a second positioning block 2521, the first positioning block 2511 is assembled from a first positioning hole 1411 to screw the first screwing protrusion 251 into the first screwing chute 141, and the second positioning block 2521 is assembled from a second positioning hole 1421 to screw the second screwing protrusion 252 into the second screwing chute 142.

That is, the connecting portion 25 of the cylinder 24 of the filter element 2 of the present invention is provided with the first screw-in protrusion 251 and the second screw-in protrusion 252 to screw in the first screw-in chute 141 and the second screw-in chute 142 respectively to be mounted on the cover plate 14 of the waterway plate 1, and the first positioning block 2511 is loaded into the first positioning hole 1411 and the second positioning block 2521 from the second positioning hole 1421 to be positioned and mounted.

Specifically, the first screw-in chute 141 and the second screw-in chute 142 each include a guide oblique block 1431, a spiral groove 1432 provided in the screw-in direction of the guide oblique block 1431, and a first stopper 1433 and a second stopper 1434 provided at the end of the spiral groove 1432; the first positioning opening 1411, the first positioning wall 1412, or the second positioning opening 1421, the second positioning wall 1422 are disposed at the head end of the spiral groove 1432. The first and second screwing-in projections 251 and 252 each include an inclined projection 253 and a horizontal projection 254 connected with the lower end of the inclined projection 253, and the first positioning block 2511 or the second positioning block 2521 is disposed on the horizontal projection 254.

During screwing installation, the first positioning block 2511 of the first screwing boss 251 is firstly aligned with the first positioning opening of the first screwing chute 141 and is installed in 1411, the second positioning block 2521 of the second screwing boss 252 is firstly aligned with the first positioning opening of the second screwing chute 142 and is installed in 1421, and then the first screwing boss 251 and the transverse boss 254 of the second screwing boss 252 are rotated to be screwed into the corresponding spiral grooves 1432, the first positioning block 2511 is abutted with the first stop block 1433 in the first screwing chute 141, and the tail end of the transverse boss 254 is abutted with the second stop block 1434 in the first screwing chute 141. The second screw-in boss 252 simultaneously performs the same screw-in action within the second screw-in chute 142.

Preferably, the distance between the first positioning hole 1411 of the first screw-in chute 141 and the first positioning wall 1412 on the cover plate 14 is different from the distance between the second positioning hole 1421 of the second screw-in chute 142 and the second positioning wall 1422. Correspondingly, the distance between the first positioning block 2511 and the end of the transverse projection 254 of the first screw-in projection 251 is different from the distance between the second positioning block 2521 and the end of the transverse projection 254 of the second screw-in projection 252. Therefore, the installation position of the filter element 2 is fixed, and the filter element can only be installed at a set position, so that the problem that the water inlet connecting column 122 on the first rotary base 12 and the water outlet connecting column 123 on the second rotary base 22 are connected in a wrong way due to the fact that the positions of the water inlet connecting column 122 and the water outlet connecting hole 222 and the water outlet connecting hole 223 are interchanged is avoided.

Referring to fig. 3, the waterway plate 1 of the filtering device 100 of the present invention further includes a hollow pressing plate 15 disposed between the first rotating base 12 and the cover plate 14, the pressing plate 15 covers the first rotating base 12, and the cover plate 14 presses the pressing plate 15. The pressing plate 15 can prevent the first rotating base 12 from falling off the first fixed base 13, and the pressing plate 15 and the first rotating base 12 are in a non-pressing state, so that the first rotating base 12 can rotate.

The filter element 2 further comprises a support 26 arranged in the cylinder 24, a filter screen or a filter membrane 27 arranged on the support 26, a connecting nozzle 28 arranged in the cylinder 24 for connecting the support 26 and the second fixed seat 23, and a hollow retainer ring 29 arranged on the lower end surface of the cylinder 24 for shielding the second rotary seat 22. The retainer 29 can block the second rotating seat 22 to prevent the second rotating seat 22 from falling off the cylinder 24, and at the same time, the retainer 29 does not press the second rotating seat 22 so that the second rotating seat 22 can rotate in the cylinder 24 relative to the second fixed seat 23.

Preferably, as shown in fig. 6, a plurality of first sealing rings 31 are disposed at the connection position of the first water flow channel 11 between the first fixed seat 13 and the first rotating seat 12.

As shown in fig. 7, a plurality of second sealing rings 32 are disposed at the connection position of the second water flow channel 21 between the second fixed seat 23 and the second rotary seat 22.

The provision of the first and second seal rings 31 and 32 improves the sealing performance of the first and second water flow passages 11 and 21.

As shown in fig. 14 to 15, the present invention further provides a water purifier 300, which comprises a housing 301, wherein the above-mentioned dual-rotation leakproof filter device 100 is arranged in the housing 301. Because the utility model discloses a water purifier 300 has set up two rotatory leak protection filter equipment 100, so when renew cartridge 2, pull down behind the filter core 2, water route board 1 and filter core 2 can not leak.

Preferably, as shown in fig. 15, the water purifier 300 of the present invention is provided with a plurality of filter elements 2 therein, including an ultrafiltration filter element, a front activated carbon filter element, an RO membrane filter element and a rear activated carbon filter element which are connected in series in sequence.

The utility model discloses a water purifier 300 obtains highly purified water after the filtering action of four filter cores to guarantee health, the safety of human drinking water.

The utility model discloses a four filter elements 2 of water purifier 300 can be installed on the top of casing 301, like this, the utility model discloses a water purifier 300 need not to unpack whole casing 301 apart when carrying out the installation and the dismantlement of filter element 2 for filter element 2 installs quick, convenient of changing.

Further, as shown in fig. 15, a tourmaline water activating device 302 is further disposed in the casing 301 of the water purifier 300. Specifically, the tourmaline water activating device 302 can activate the purified water, so that the purified water has a water molecular group structure most beneficial to human health.

The embodiment of the utility model provides a two rotatory leak protection filter equipment 100 and water purifier 300, through set up rotatable first roating seat 12 in water route board 1, set up rotatable second roating seat 22 in filter core 2, filter core 2 is installed behind water route board 1, first roating seat 12 and second roating seat 22 are connected and are switched on to through the rotary motion of first roating seat 12 and second roating seat 22 switch on or turn off the intercommunication between water route board 1's first rivers passageway 11 and filter core 2's the second rivers passageway 21. The utility model discloses a when filter equipment 100 took out filter core 2, rotated first roating seat 12 earlier and second roating seat 22 and turn-offed first rivers passageway 11 and second rivers passageway 21 respectively, then taken off filter core 2, filter core 2 and water route board 1 all can not leak like this. The water purifier realizes the function that the filter element can not leak water when being directly replaced without closing a water source and a power supply and relieving pressure in a standby state. The utility model discloses a filter equipment 100 all can rotate and have two rotation function owing to first roating seat 12 and second roating seat 22 to make water route board 1 and filter core 2 all have independent leak protection function, the dismouting of the filter core 2 of being convenient for is maintained.

The above only for the purpose of clearly illustrating the examples of the present invention, not limiting the scope of the present invention, can't be exhausted to all the embodiments, all the concepts of the present invention, utilize the equivalent structure transformation of the content of the technical solution of the present invention, or directly/indirectly use in other related technical fields and are all included in the protection scope of the present invention.

Claims (10)

1. A double-rotation leakproof filter device comprises a water circuit board and a filter element arranged on the water circuit board, and is characterized in that,

the water channel plate is provided with a first water channel and a first rotating seat which is rotatably used for switching on or off the first water channel in the water channel plate;

the filter element is provided with a second water flow channel and a second rotating seat which is rotatably used for switching on or off the second water flow channel in the filter element;

the first rotating seat of the water channel plate can be connected and communicated with the second rotating seat of the filter element, and the first water channel and the second water channel are communicated after rotation.

2. The dual rotary leak-proof filter apparatus as recited in claim 1, wherein the filter cartridge is screw-mounted to the water path plate and turns on or off the communication between the first and second water flow passages by two consecutive co-rotating movements.

3. The dual-rotation leakproof filtering device of claim 2, wherein the water passage plate comprises a first fixed seat and a first rotating seat in contact with the first fixed seat, the first fixed seat is provided with a filter element mounting opening for mounting the first rotating seat, a first water flow channel penetrates through the first fixed seat and the first rotating seat, and the first rotating seat rotates relative to the first fixed seat in the filter element mounting opening to conduct or shut off the first water flow channel;

the filter core includes the barrel and sets up the second fixing base in the barrel, and the second roating seat with the contact of second fixing base, second water flow channel wears to establish second fixing base and second roating seat, and the second roating seat is rotatory in order to switch on or turn off in the barrel relative to the second fixing base the second water flow channel.

4. The dual rotation leakproof filter device of claim 3, wherein the first fixed seat is provided with a first rotation limiting groove in the filter element mounting opening, the lower end surface of the first rotating seat is provided with a first limiting rod, and the first limiting rod is inserted into the first rotation limiting groove and rotates within a preset length range of the first rotation limiting groove, so that the first rotating seat rotates relative to the first fixed seat within the range;

the lower end face of the second fixing seat is provided with a second rotary limiting groove, the upper end face of the second rotary seat is provided with a second limiting rod, and the second limiting rod is inserted into the second rotary limiting groove and rotates within a preset length range of the second rotary limiting groove, so that the second rotary seat rotates relative to the second fixing seat within the range.

5. The dual-rotation leakproof filtering device of claim 3, wherein the first water flow channel is provided with a first fixed seat water inlet and a first fixed seat water outlet on the first fixed seat, and is provided with a first rotary seat water inlet and a first rotary seat water outlet on the first rotary seat, and when the first rotary seat rotates relative to the first fixed seat, the first fixed seat water inlet and the first rotary seat water inlet are aligned or staggered;

the second water flow channel is provided with a second fixing seat water inlet hole in a penetrating mode on the second fixing seat, a second fixing seat water outlet hole, a second rotating seat water inlet hole and a second rotating seat water outlet hole in a penetrating mode on the second rotating seat, the second rotating seat water outlet hole enables the second fixing seat water inlet hole and the second rotating seat water inlet hole to be aligned or staggered when the second rotating seat rotates relative to the second fixing seat.

6. The dual rotary leakproof filter device of claim 4, wherein the first rotary base extends upward to form a water inlet connecting column and a water outlet connecting column which are communicated with the water inlet hole of the first rotary base and the water outlet hole of the first rotary base, the second rotary base extends downward to form a water inlet connecting hole and a water outlet connecting hole which are communicated with the water inlet hole of the second rotary base and the water outlet hole of the second rotary base, the water inlet connecting column is connected with the water inlet connecting hole in a plugging manner, and the water outlet connecting column is connected with the water outlet connecting hole in a plugging manner.

7. The dual rotary leakproof filter device of claim 3, wherein the first fixed seat is connected with a hollow cover plate for shielding the first rotary seat at the filter element mounting port, a first screw-in chute and a second screw-in chute are circumferentially arranged on the inner side wall of the cover plate at intervals, a first positioning port and a first positioning wall are arranged on the first screw-in chute at intervals, and a second positioning port and a second positioning wall are arranged on the second screw-in chute at intervals;

the lower extreme of barrel is provided with connecting portion, and the annular space is provided with first screw in arch and second screw in arch on the connecting portion, is provided with first locating piece and second locating piece on first screw in arch and the second screw in arch respectively, and first locating piece is packed into from first locating hole and is made first screw in protruding screw in first screw in chute, and the second locating piece is packed into from the second locating hole and is made second screw in protruding screw in second screw in chute.

8. The dual rotary leak-proof filter apparatus of claim 7, wherein the spacing between the first locating port and the first locating wall is different from the spacing between the second locating port and the second locating wall.

9. The dual rotary leak-proof filter apparatus as recited in claim 7, wherein the water circuit board further comprises a hollow pressure plate disposed between the first rotary base and the cover plate, the pressure plate covering the first rotary base, the cover plate pressing against the pressure plate;

the filter element also comprises a bracket arranged in the cylinder body, a filter screen or a filter membrane arranged on the bracket, a connecting nozzle arranged in the cylinder body and used for connecting the bracket and the second fixed seat, and a hollow retainer ring arranged on the lower end surface of the cylinder body and used for shielding the second rotary seat;

a plurality of first sealing rings are arranged at the joint of the first water flow channel between the first fixed seat and the first rotating seat;

and a plurality of second sealing rings are arranged at the joint of the second water flow channel between the second fixed seat and the second rotating seat.

10. A water purifier comprising a housing, wherein a double rotary leak-proof filter device as claimed in any one of claims 1 to 9 is provided in the housing.

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