CN216170426U - Water inlet structure and filtering device - Google Patents

Abstract

The utility model discloses a water inlet structure and a filtering device, wherein the water inlet structure comprises a base, an installation part, a water inlet plug and an elastic part, wherein the base is provided with a water inlet, the installation part is fixedly installed on the base in a rotating clamping manner, the installation part is provided with an abutting inclined plane facing the water inlet plug, the abutting inclined plane can gradually push the water inlet plug to open the water inlet through the rotation of the installation part after the installation part is inserted and sealed in place, and the elastic part can push the water inlet plug to block the water inlet when the installation part rotates reversely; this filter equipment adopts this structure of intaking to still including filtering component, utilize this filtering component to go out water again after can filtering intaking, when effectively preventing the problem that the installation part installation or dismantlement in-process appear leaking, still can improve the quality of water of going out water.

Description

Water inlet structure and filtering device

Technical Field

The utility model relates to the technical field of water inlet structures, in particular to a water inlet structure and a filtering device.

Background

Current filter flask generally includes filter flask shell and filter core, the filter core is installed among the filter flask shell through the fixed mode of pegging graft, be provided with water intake pipe and outlet pipe way on the filter flask shell, for the dismantlement and the installation of filter core, can set up a stagnant water stopper in the position of water intake pipe usually, when the filter core is not installed to the filter flask shell, the stagnant water stopper can be with the water inlet shutoff under the effect of spring, when the filter core is installed to the filter flask shell in, the filter core can push up and support the stagnant water stopper, make stagnant water stopper position change, and open the water inlet, the water intake pipe can supply water to the filter flask this moment, adopt this structure can needn't close total water inflow when installing and dismantling the filter core. However, in the process of specifically installing or disassembling the filter element, when the filter element is inserted into the filter element shell, the end part of the filter element always pushes against the water stop plug under the condition that the sealing ring is not sealed in place, so that the filter bottle starts to feed water at the moment, and water leakage is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects or problems in the prior art, and provides a water inlet structure and a filter device, wherein a base of the water inlet structure is provided with an installation cavity for fixing an installation part, and a water inlet plug is arranged at the same time, the water inlet plug can be propped against the installation part through the installation part to open a water inlet at the bottom of the installation cavity, the installation part is provided with a propping inclined plane, when the installation part is inserted into the installation cavity and sealed in place, the propping inclined plane is not propped against the water inlet plug, only the installation part is rotated to enable the propping inclined plane to gradually push the water inlet plug to move, and the water inlet can be opened, so that the problem that the installation part is propped against the water inlet plug to cause water leakage when the installation part is not sealed in place can be solved, similarly, the installation part needs to be reversely rotated firstly when being disassembled, and then the installation part is taken out of the installation cavity after the water inlet plug gradually closes the water inlet, the problem of water leakage can also be avoided during the disassembly process.

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

a water intake structure comprising: the water inlet device comprises a base, a water inlet and a water outlet, wherein the base is provided with an installation cavity, and the bottom of the installation cavity is provided with a water inlet; the mounting piece is suitable for being plugged into the mounting cavity to form a sealed communication waterway with the base, is suitable for rotating relative to the base after being plugged into place, and is provided with an abutting inclined surface towards the end surface of the bottom of the mounting cavity; the water inlet plug is arranged on the base in a sliding mode and is suitable for being switched between a first position for blocking the water inlet and a second position for opening the water inlet; the two ends of the elastic piece are respectively abutted against the water inlet plug and the base and are configured to be suitable for pushing the water inlet plug to move from the second position to the first position; the abutment ramp is configured and adapted to progressively urge the water inlet plug from a first position to a second position as the mount is rotated relative to the base.

Furthermore, the mounting piece is provided with a clamping rib; the inner wall of the mounting cavity of the base is provided with a clamping protrusion which is used for forming clamping fit with the clamping rib so that the mounting piece is fixedly connected to the base; the mounting piece is configured to be suitable for being plugged into the mounting cavity and then enabling the clamping ribs to be clamped to the clamping protrusions through rotating relative to the base.

In addition, the utility model also provides a filter device which adopts the water inlet structure as any one of the above parts and also comprises a filter component arranged on the mounting part; the filter assembly is configured and adapted to filter water flowing through the communication waterway after the mount is mounted to the base and forms a sealed communication waterway with the base.

Furthermore, the mounting piece comprises a filter cartridge seat and a filter cartridge cover which are fixedly connected into a whole; the abutting inclined plane is arranged on the filter cylinder cover; the filter assembly is arranged between the filter cartridge seat and the filter cartridge cover and limited by the filter cartridge seat and the filter cartridge cover.

Furthermore, the filter device also comprises a liquid cylinder and a water passing seat which are arranged in the filter cylinder seat and limited by the filter cylinder seat and the filter cylinder cover; the base is also provided with a water outlet; the base, the mounting piece and the water passing seat are matched to form a water passing path communicated with the water inlet and the water outlet; the liquid cylinder and the water passing seat are matched to form a liquid storage cavity, and a liquid outlet hole for communicating the liquid storage cavity with the water passing channel is formed in the water passing seat; the diameter of the liquid outlet hole is configured to be suitable for enabling water flow to form negative pressure when the water flow passes through the liquid outlet hole and is far away from the hole end of the liquid storage cavity.

Further, the filter assembly comprises a first filter screen, a second filter screen, a third filter screen and a filter core material; the first filter screen is arranged around the filter cylinder seat, and two ends of the first filter screen are respectively abutted against the filter cylinder seat and the filter cylinder cover; the second filter screen is positioned in the filter cylinder, one end of the second filter screen abuts against the water passing base, and the third filter screen is positioned in the filter cylinder, and one end of the third filter screen abuts against the filter cylinder cover; the filter core material is positioned between the second filter screen and the third filter screen and clamped by the second filter screen and the third filter screen; one end of the liquid cylinder, which is far away from the water passing seat, is abutted against the filter cylinder seat.

Further, the filter cartridge seat is provided with a first water through hole; the water passing seat is provided with a water passing channel close to the liquid outlet hole; the filter cylinder cover is provided with a second water through hole; a water passing gap is formed between the filter cartridge and the base in a matched manner; the water passing gap, the first water passing hole, the water passing channel and the second water passing hole are used for being matched to form the water passing channel; the first filter screen is positioned between the first water passing hole and the water passing gap; the second filter screen, the filter core material and the third filter screen are positioned between the water passing channel and the second water passing hole.

Further, the water passing seat is provided with a first substrate and a second substrate which are connected with each other; the first substrate is buckled with the liquid cylinder and matched with the liquid cylinder to form the liquid storage cavity, and the liquid outlet hole is formed in the liquid storage cavity; the second base plate is used for abutting against the second filter screen and is provided with a third water through hole; the water passing space between the first substrate and the second substrate is matched with the third water passing hole to form the water passing channel.

Further, the first filter screen is a cylindrical filter screen; the second filter screen and the third filter screen are flat filter screens.

Further, the filtering pore diameters of the first filter screen, the second filter screen and the third filter screen are reduced in sequence.

As can be seen from the above description of the present invention, the present invention has the following advantages over the prior art:

1. be provided with one in this inlet structure's the base and be used for supplying the fixed installation cavity of installed part, be provided with a stopper of intaking simultaneously, this stopper of intaking can push up the water inlet that makes it open the installation cavity bottom to it through the installed part, and be provided with the butt inclined plane on this installed part, insert the installation cavity and sealed back in place when the installed part, the butt inclined plane still not with the stopper butt of intaking this moment, only rotate the installed part, make the butt inclined plane push gradually and support the stopper of intaking and remove, the mouth of intaking just can be opened, this just can solve the installed part and just push up the stopper of intaking when not sealed in place and advance and lead to the problem of leaking, it is same, need first reverse rotation installed part when dismantling the installed part, after the water inlet is closed gradually to the stopper of intaking, take out the installed part from the installation cavity again, also can avoid appearing the problem of leaking in this dismantlement process.

2. Set up the joint rib on the installed part, installation intracavity wall sets up the joint arch, and the installed part is at first inserted to the installation cavity in, and the rethread rotates and the cooperation of base joint, and this rotation process not only can make the installed part in base by the rigid coupling, can also make the butt inclined plane on the installed part push gradually the water plug removal in order to open the water inlet.

3. This filter equipment has adopted foretell structure of intaking, consequently has the relevant effect of above-mentioned structure of intaking, and this filter equipment still including filter assembly simultaneously, can filter the rivers that flow through this filter equipment through filter assembly.

4. The installed part is for straining a section of thick bamboo seat and straining a section of thick bamboo lid, and it is used for installing filter assembly, and the components of a whole that can function independently design filter assembly's assembly and fixed of being convenient for, wherein the butt inclined plane sets up on straining a section of thick bamboo lid to the installed part pushes away to advance the water stopper through rotating and removes.

5. Be provided with a liquid section of thick bamboo and cross the water seat, the two cooperation forms the stock solution chamber, can look at user's demand in the stock solution chamber and store liquid such as nursing liquid, set up out the liquid hole on crossing the water seat simultaneously, utilize during the negative pressure that rivers formed when going out liquid hole one end mixes into rivers with the liquid suction in the stock solution chamber, thereby make this filter equipment's play water itself have rather than the corresponding effect of the liquid of storing in itself, can make the user avoid paining nursing liquid etc. after using, user's use travelling comfort and convenience can be improved, utilize filtering component to filter water simultaneously, can also improve the quality of water.

6. The filter assembly comprises a first filter screen, a second filter screen and a third filter screen, the filter effect of the filter device can be effectively guaranteed through three-layer filtering, and the filter core material can be optionally arranged, for example, the filter core material used for adsorbing metal ions in water can be arranged, so that the concentration of the metal ions in the water is effectively reduced.

7. Cross the water clearance and be arranged in sending into the water route with the rivers of intaking the end, first water hole of crossing is used for straining a section of thick bamboo with the rivers entering of first filter screen filtration in, crosses water channel and is used for forming the negative pressure in liquid outlet department, and the second is crossed the water hole and is used for sending the delivery port of base to the delivery port through filterable rivers

8. The water passing base comprises a first substrate and a second substrate, the first substrate can be matched with the liquid cylinder to form a liquid storage cavity, and the second substrate is convenient for abutting and fixing the second filter screen.

9. The first cylindrical filter screen is convenient for the cover to be established outside straining a section of thick bamboo seat, and second filter screen and third filter screen can be convenient for install in straining a section of thick bamboo for flat filter screen.

10. The filtering pore diameter of the filter screen is gradually reduced, so that the filtering device has a gradient filtering level, thereby effectively improving the filtering effect and prolonging the service life of the filter screen.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an exploded view of an embodiment of a filter assembly according to the present invention;

FIG. 2 is a schematic view of a portion of the inlet plug and the resilient member of FIG. 1;

FIG. 3 is a schematic view of the filter cartridge cover of FIG. 1;

FIG. 4 is a schematic view of the filter cartridge holder of FIG. 1;

FIG. 5 is a schematic structural view of the base of FIG. 1;

FIG. 6 is a sectional view of the structure of the water passing seat and the liquid cylinder in FIG. 1;

FIG. 7 is a schematic view of the filter apparatus of FIG. 1 in a water inlet state;

FIG. 8 is an enlarged view of the structure of portion A of FIG. 7;

FIG. 9 is an enlarged view of the structure of portion C of FIG. 7;

FIG. 10 is a schematic view of the filter apparatus of FIG. 1 in a water shut-off state;

fig. 11 is an enlarged view of a portion B of fig. 10.

Description of the main reference numerals:

a base 10; a clamping protrusion 101; a guide boss 102; a guide slope 1021; a water inlet 103; straight line segment 104; a ramp section 105;

a water inlet pipe 11; a water inlet pipe member 111; a threaded sleeve 112; a water outlet pipe 12;

a filter cartridge holder 21; clamping ribs 211; a first slope 2111; a second slope 2112; a rib 212; a first water passing hole 213; a snap groove 214; a positioning groove 215;

a filter cartridge cover 22; an abutment ramp 221; a joint 222; positioning ribs 223; a clamping boss 224; a second water passing hole 225; an abutment mesa 226; an elastic rubber ring 23;

a liquid cartridge 30; a liquid outlet hole 31; a liquid storage chamber 32;

a water passing seat 40; a first substrate 401; a second substrate 402; a third water passing hole 41; a water passing tank 42;

a first sieve 51; a second screen 52; a third sieve 53; a filter core material 54;

the rod piece 61 is blocked; a sliding post 611; a limit protrusion 612; a rubber ring groove 613; an abutment post 614; an elastic member 62; an end cap 63; a sleeved post 631; a slide hole 632; a fixed rubber ring 64; the plugging rubber ring 65.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are presently preferred embodiments of the utility model and are not to be taken as an exclusion of other embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.

Referring to fig. 1, fig. 1 shows an exploded view of an embodiment of a filter device according to the present invention, which uses a water inlet structure according to the present invention, the water inlet structure mainly includes a base 10, a water inlet pipe 11, a mounting member, a water inlet plug, and an elastic member 62, and the filter device using the water inlet structure further includes a filter assembly, a liquid cartridge 30, and a water passing base 40.

It should be understood that the application of the water inlet structure to the filtering device is only one specific embodiment of the water inlet structure, and those skilled in the art can apply the water inlet structure to water outlet taps, showers, etc. in situations where the total water inlet needs to be shut off during disassembly and assembly, depending on the actual situation.

Referring to fig. 5, fig. 5 shows the structure of the base 10 of the present embodiment, which can be roughly regarded as a bottomed cylindrical member, on which a water inlet pipe 11 is installed by screwing, the above-mentioned water inlet plug and elastic member 62 are installed between the water inlet pipe 11 and the base 10, and the water inlet pipe 11 forms the water inlet end of the filtering apparatus, referring to fig. 7, a water inlet 103 is provided at the position where the base 10 is connected to the water inlet pipe 11. A water outlet pipe 12 is further provided on the base 10, the water outlet pipe 12 forms a water outlet end of the filter device, and a water outlet for communicating with the water outlet pipe 12 is provided at the bottom of the base 10. It should be noted that the inside of the base 10 forms a cylindrical installation cavity for installing the installation member, and the bottom of the installation cavity is provided with the water inlet 103 and the water outlet.

The inner wall of the opening of the base 10 is circumferentially provided with a clamping protrusion 101, a guiding boss 102 is arranged at a position close to the clamping protrusion 101, a guiding inclined plane 1021 is arranged in the direction of the guiding boss 102 towards the opening of the base 10, and the guiding inclined plane 1021 can be regarded as being upwards inclined towards the opening of the base 10 along the counterclockwise direction. In addition, referring to fig. 8 and 11, a straight line segment 104 and a slope segment 105 are further formed on the inner wall of the opening of the susceptor 10 in sequence from inside to outside, the diameter of the straight line segment 104, i.e., the inner wall of the susceptor 10, in this region is kept uniform, and the diameter of the slope segment 105, i.e., the inner wall of the susceptor 10, in this region is smoothly and gradually increased.

The mounting member includes a cartridge base 21, a cartridge cover 22 and an elastomeric grommet 23.

Referring to FIG. 4, the cartridge holder 21 can be generally considered as a bottomed cylindrical member that can be inserted into the base 10 with its bottom facing outward and is in rotational snap fit with the base 10. It is specific, strain barrel holder 21 and be equipped with joint rib 211 in the lateral wall department that is close to its diapire position, joint rib 211 can cooperate with the protruding 101 of joint on the base 10 inner wall, after strain barrel holder 21 inserts among the base 10, clockwise rotation strains barrel holder 21, can be so that joint rib 211 and the protruding 101 realization joint cooperation of joint to prevent to strain barrel holder 21 and deviate from among base 10. Specifically, a first inclined surface 2111 is provided on the clamping rib 211, the first inclined surface 2111 faces clockwise direction of rotation of the filter cartridge holder 21 and is used for abutting and matching with the clamping protrusion 101 when the filter cartridge holder 21 rotates clockwise, so that the clamping protrusion 101 can enter into a slot formed by the clamping rib 211, meanwhile, a second inclined surface 2112 is provided on the clamping rib 211, and the second inclined surface 2112 can abut and match with a guiding inclined surface 1021 on the guiding boss 102 in the process that the filter cartridge holder 21 rotates counterclockwise and is separated from the clamping and matching with the base 10, so that the filter cartridge holder 21 can slightly extend out from the inside of the base 10.

Meanwhile, referring to fig. 8 and 11, the filter cartridge holder 21 is sleeved with an elastic rubber ring 23, the elastic rubber ring 23 abuts against the straight line segment 104 on the inner wall of the base 10 when the filter cartridge holder 21 and the base 10 are in clamping fit, at this time, the force applied to the elastic rubber ring 23 is balanced in the direction perpendicular to the inner wall of the base 10, and then when the filter cartridge holder 21 is separated from the clamping fit with the base 10 and slightly extends outward, the elastic rubber ring 23 moves to the inclined plane segment 105, and at this time, the inclined plane segment 105 applies a component force to the elastic rubber ring 23, so that the filter cartridge holder 21 continues to extend outward from the base 10, and thus the filter cartridge holder 21 can automatically pop out from the base 10, and the filter cartridge holder 21 is very convenient to detach.

In addition, referring to fig. 4, a plurality of ribs 212 are further disposed on the outer wall of the filter cartridge holder 21, a plurality of first water through holes 213 are disposed on the sidewall of the filter cartridge holder 21, and a fastening groove 214 and a positioning groove 215 are further disposed on the sidewall of the filter cartridge holder near the opening.

Referring to fig. 3, the filter cartridge cover 22 is used to fixedly connect with the filter cartridge base 21 to cover the opening of the filter cartridge base 21, and is provided with a clamping boss 224 for cooperating with the clamping groove 214 and a positioning rib 223 for cooperating with the positioning groove 215, when the filter cartridge cover 22 is installed, the positioning groove 215 is in inserting fit with the positioning rib 223, and the clamping boss 224 is clamped into the clamping groove 214. Be equipped with on the terminal surface that deviates from filter cartridge seat 21 at filter cartridge lid 22 and connect 222, be equipped with second water hole 225 in connecting 222, the outside of connecting 222 is equipped with butt mesa 226 along circumference, connect 222 can be when the installed part is installed to base 10 in with the delivery port grafting cooperation on the base 10 to make second water hole 225 and the play water end intercommunication of body, butt mesa 226 can the butt be used for forming on the flange of delivery port on the base 10 diapire. Meanwhile, an abutting inclined surface 221 is further arranged on the end surface of the filter cartridge cover 22 departing from the filter cartridge seat 21, the abutting inclined surface 221 is inclined outwards along the counterclockwise direction of the rotation of the mounting piece and is used for pushing the water inlet plug to gradually open the water inlet 103 on the base 10 in the rotation process of the mounting piece.

Referring to fig. 6, the liquid cylinder 30 is installed in the filter cylinder seat 21, the water passing seat 40 is fastened at the opening of the liquid cylinder 30 and cooperates with the liquid cylinder 30 to form a liquid storage cavity 32, and the liquid storage cavity 32 can store liquid such as nursing liquid.

The water passing base 40 comprises a first substrate 401 and a second substrate 402, which are connected with each other at opposite surfaces and form a water passing groove 42 therebetween, wherein the first substrate 401 is used for fastening the opening of the liquid cylinder 30, and is further provided with a liquid outlet hole 31, and the diameter of the liquid outlet hole 31 is small, so that a negative pressure is formed outside the liquid outlet hole 31 when a water flow with a fast flow speed passes through the hole end far away from the liquid storage cavity 32, so as to suck out the liquid in the liquid storage cavity 32 and mix the liquid into the water flow. The second base plate 402 is provided with a third water through hole 41, and the water through groove 42 and the third water through hole 41 are matched to form a water through channel of the water through seat 40. Further, it should be noted that when the water passing base 40 and the liquid cartridge 30 are installed in the filter cartridge base 21, the water passing groove 42 is positioned to correspond to the first water passing hole 213 of the filter cartridge base 21 so as to facilitate the flow of water therethrough.

The filter assembly comprises a first filter screen 51, a second filter screen 52, a third filter screen 53 and a filter core material 54, and the filter assembly, the liquid cylinder 30 and the water passing base 40 are all arranged between the filter cylinder base 21 and the filter cylinder cover 22 and limited by the filter cylinder base 21 and the filter cylinder cover 22. The first filter screen 51 is disposed around the filter cylinder base 21, and two ends of the first filter screen are respectively abutted to the filter cylinder base 21 and the filter cylinder cover 22, the second filter screen 52 is disposed in the filter cylinder base 21, and one end of the second filter screen is abutted to the water passing base 40, the third filter screen 53 is disposed in the filter cylinder base 21, and one end of the third filter screen is abutted to the filter cylinder cover 22, the filter core material 54 is disposed between the second filter screen 52 and the third filter screen 53 and clamped by the two, and one end of the liquid cylinder 30 away from the water passing base 40 is abutted to the filter cylinder base 21.

Specifically, the first filter screen 51 is a cylindrical filter screen, which can be sleeved outside the filter cartridge base 21 to form a filtering structure around the filter cartridge base 21, and meanwhile, when the first filter screen 51 is sleeved outside the filter cartridge base 21, a water passing space can be formed between the first filter screen 51 and the outer wall of the filter cartridge base 21 through the convex rib 212 arranged on the outer wall of the filter cartridge base 21, so that water passing is smooth.

The second filter screen 52 and the third filter screen 53 are flat filter screens, wherein the second filter screen 52 abuts against the second substrate 402 of the water passing base 40, the third filter screen 53 abuts against the end face, facing the inner cavity of the filter cylinder base 21, of the filter cylinder cover 22, a filter core material 54 is arranged between the second filter screen and the third filter screen, and the filter core material 54 can be assembled according to actual conditions, for example, a filter material capable of adsorbing heavy metal ions can be selected, and heavy metal ions in water are adsorbed to improve water quality.

During assembly of the mounting part, the water passing seat 40 is buckled on the liquid cylinder 30, the liquid cylinder 30 is installed in the filter cylinder seat 21, the second filter screen 52, the filter core material 54 and the third filter screen 53 are sequentially placed, the first filter screen 51 is sleeved outside the filter cylinder seat 21, and the filter cylinder cover 22 is buckled, so that the liquid cylinder 30, the water passing seat 40 and the filter assembly are clamped and fixed.

When the installation piece is installed, firstly the installation piece is inserted into the base 10, and then the installation piece is rotated clockwise, so that the installation piece can be clamped and fixed to the base 10. When the mounting member is removed, the mounting member is rotated counterclockwise, so that the mounting member is separated from the base 10.

When the mounting part is mounted on the base 10, a water passing gap is formed between the mounting part and the inner wall of the base 10, the water passing gap, the first water passing hole 213, the water passing channel and the second water passing hole 225 form a sealed communication water path between the mounting part and the base 10, two ends of the communication water path are respectively a water inlet end and a water outlet section of the base 10, one end of the water passing gap is communicated with the water inlet end, the second water passing hole 225 is communicated with the water outlet end, and when passing through the communication water path, water flows are also contacted with a filtering component arranged in the filtering device, so that the filtering component can filter water.

Referring to fig. 2, the filter device further includes a water inlet plug, an elastic member 62, an end cap 63 and a fixing rubber ring 64, wherein the water inlet plug includes a blocking rod 61 and a blocking rubber ring 65, the water inlet plug is slidably disposed on the base 10 and configured to be switched between a first position for blocking the water inlet 103 and a second position for opening the water inlet 103, and two ends of the elastic member 62 abut against the water inlet plug and the base 10, respectively, and are configured to push the water inlet plug to move from the second position to the first position.

Specifically, referring to fig. 9, the water inlet pipe 11 includes a water inlet pipe 111 and a threaded sleeve 112, when the water inlet pipe 11 is installed, the fixed rubber ring 64 is first placed between the water inlet pipe 11 and the base 10, and then the water inlet pipe 11 is fixed on the base 10 by the threaded sleeve 112, at this time, the fixed rubber ring 64 is clamped and fixed by the water inlet pipe 111 and the base 10. The fixing rubber ring 64 serves to prevent water leakage between the inlet pipe 11 and the base 10, and also serves to support the end cap 63.

The blocking rod 61 is a long structure extending along the sliding direction of the water inlet plug, a flange structure protruding outwards is arranged in the middle of the blocking rod, a rubber ring groove 613 is concavely arranged on the side wall of the flange structure, the rubber ring groove 613 is used for allowing a blocking rubber ring 65 to be sleeved on the blocking rod 61, meanwhile, a butting column 614 is arranged on one side, facing the mounting piece, of the flange structure in an extending mode, the butting column 614 is used for being matched with a butting inclined surface 221 on the mounting piece, a sliding column 611 extending along the sliding direction of the water inlet plug is arranged on the other side, opposite to the butting column 614, of the flange structure, and the sliding column 611 can be matched with the end cover 63 to enable the water inlet plug to slide in the fixed direction. A limiting protrusion 612 is further disposed on the blocking rod 61, and the limiting protrusion 612 protrudes outward to prevent the water inlet plug from further moving after the water inlet plug reaches the first position for blocking the water inlet 103.

The middle of the end cap 63 is provided with a sleeve post 631, the middle of the sleeve post 631 is provided with a sliding hole 632, and the sliding post 611 can be inserted into the sliding hole 632.

The elastic member 62 is a spring, which can be sleeved on the sleeve post 631 and the sliding post 611, and two ends of the elastic member abut against the blocking rod member 61 and the end cap 63, so that the position of the end cap 63 can be fixed by the elastic force of the elastic member 62, and the blocking rod member 61 can be pushed back to the first position by the elastic member 62 when the blocking rod member 61 is not abutted by the mounting member.

Referring to fig. 6, 9 and 10, when the mounting member is inserted into the mounting cavity of the base 10 and abuts against the abutment table 226 to the bottom of the mounting cavity, the mounting member does not rotate to form a clamping connection with the base 10, and the abutment inclined surface 221 does not abut against the end of the abutment post 614 of the water inlet plug, so that the water inlet 103 is not opened, but the mounting member is inserted in place, the elastic rubber ring 23 can ensure that the water in the base 10 does not leak, and then the mounting member rotates to clamp the clamping protrusion 101 on the base 10, and the abutment inclined surface 221 starts to abut against the water inlet plug, so that the water inlet plug gradually moves from the first position for blocking the water inlet 103 to the second position for opening the water inlet 103, so that the filtering device can enter water, and when the mounting member is detached, the mounting member rotates reversely, the abutment inclined surface 221 gradually descends against the water inlet plug, and the water inlet plug gradually moves from the second position to the first position under the action of the elastic member 62, thereby stopping the filter device from feeding water. Through this structure, all can not close this filter equipment's total intake when installation and dismantlement installed part for the installation is more convenient with the dismantlement installed part, and can prevent effectively that filter equipment from just appearing leaking the condition emergence when the installed part is not installed in place.

According to the water inlet structure and the filtering device provided by the utility model, the installation mode of rotationally clamping the installation piece in the water inlet structure and the pushing action of the abutting inclined surface 221 arranged on the installation piece on the water inlet plug are utilized, so that after the installation piece is inserted into the installation cavity and sealed in place, the abutting inclined surface 221 is not abutted to the water inlet plug, only the installation piece is rotated, the abutting inclined surface 221 is gradually pushed to the water inlet plug to move, and the water inlet 103 is opened, therefore, the problem of water leakage caused by the fact that the installation piece is pushed to the water inlet plug when not sealed in place can be solved. The description of the above specification and examples is intended to be illustrative of the scope of the present invention and is not intended to be limiting. Modifications, equivalents and other improvements which may occur to those skilled in the art and which may be made to the embodiments of the utility model or portions thereof through a reasonable analysis, inference or limited experimentation, in light of the common general knowledge, the common general knowledge in the art and/or the prior art, are intended to be within the scope of the utility model.

Claims (10)

1. A water intake structure, comprising:

the water inlet device comprises a base, a water inlet and a water outlet, wherein the base is provided with an installation cavity, and the bottom of the installation cavity is provided with a water inlet;

the mounting piece is suitable for being plugged into the mounting cavity to form a sealed communication waterway with the base, is suitable for rotating relative to the base after being plugged into place, and is provided with an abutting inclined surface towards the end surface of the bottom of the mounting cavity;

the water inlet plug is arranged on the base in a sliding mode and is suitable for being switched between a first position for blocking the water inlet and a second position for opening the water inlet;

the two ends of the elastic piece are respectively abutted against the water inlet plug and the base and are configured to be suitable for pushing the water inlet plug to move from the second position to the first position;

the abutment ramp is configured and adapted to progressively urge the water inlet plug from a first position to a second position as the mount is rotated relative to the base.

2. A water intake structure as claimed in claim 1, wherein the mounting member is provided with a snap-fit rib; the inner wall of the mounting cavity of the base is provided with a clamping protrusion which is used for forming clamping fit with the clamping rib so that the mounting piece is fixedly connected to the base; the mounting piece is configured to be suitable for being plugged into the mounting cavity and then enabling the clamping ribs to be clamped to the clamping protrusions through rotating relative to the base.

3. A filter unit, wherein a water inlet structure according to claim 1 or 2 is used, and further comprising a filter member mounted to the mounting member; the filter assembly is configured and adapted to filter water flowing through the communication waterway after the mount is mounted to the base and forms a sealed communication waterway with the base.

4. A filter assembly as claimed in claim 3 wherein said mounting means comprises a cartridge base and a cartridge cover secured together; the abutting inclined plane is arranged on the filter cylinder cover; the filter assembly is arranged between the filter cartridge seat and the filter cartridge cover and limited by the filter cartridge seat and the filter cartridge cover.

5. The filter device according to claim 4, further comprising a liquid cartridge and a water passing base installed in the cartridge base and limited by the cartridge base and the cartridge cover; the base is also provided with a water outlet; the base, the mounting piece and the water passing seat are matched to form a water passing path communicated with the water inlet and the water outlet; the liquid cylinder and the water passing seat are matched to form a liquid storage cavity, and a liquid outlet hole for communicating the liquid storage cavity with the water passing channel is formed in the water passing seat; the diameter of the liquid outlet hole is configured to be suitable for enabling water flow to form negative pressure when the water flow passes through the liquid outlet hole and is far away from the hole end of the liquid storage cavity.

6. The filter apparatus of claim 5, wherein the filter assembly comprises a first screen, a second screen, a third screen, and a filter core; the first filter screen is arranged around the filter cylinder seat, and two ends of the first filter screen are respectively abutted against the filter cylinder seat and the filter cylinder cover; the second filter screen is positioned in the filter cylinder, one end of the second filter screen abuts against the water passing base, and the third filter screen is positioned in the filter cylinder, and one end of the third filter screen abuts against the filter cylinder cover; the filter core material is positioned between the second filter screen and the third filter screen and clamped by the second filter screen and the third filter screen; one end of the liquid cylinder, which is far away from the water passing seat, is abutted against the filter cylinder seat.

7. The filter device according to claim 6, wherein said cartridge holder is provided with a first water through hole; the water passing seat is provided with a water passing channel close to the liquid outlet hole; the filter cylinder cover is provided with a second water through hole; a water passing gap is formed between the filter cartridge and the base in a matched manner; the water passing gap, the first water passing hole, the water passing channel and the second water passing hole are used for being matched to form the water passing channel; the first filter screen is positioned between the first water passing hole and the water passing gap; the second filter screen, the filter core material and the third filter screen are positioned between the water passing channel and the second water passing hole.

8. The filter device as claimed in claim 7, wherein the water passing base is provided with a first base plate and a second base plate which are connected; the first substrate is buckled with the liquid cylinder and matched with the liquid cylinder to form the liquid storage cavity, and the liquid outlet hole is formed in the liquid storage cavity; the second base plate is used for abutting against the second filter screen and is provided with a third water through hole; the water passing space between the first substrate and the second substrate is matched with the third water passing hole to form the water passing channel.

9. A filter unit as claimed in claim 8, wherein said first screen is a cylindrical screen; the second filter screen and the third filter screen are flat filter screens.

10. The filter apparatus of claim 9, wherein the filter apertures of the first, second and third screens decrease sequentially.

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