CN216778169U

CN216778169U - Filter device and water purifier

Info

Publication number: CN216778169U
Application number: CN202123071904.8U
Authority: CN
Inventors: 陶林兵; 杨玖林; 玄珍雨
Original assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Current assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-06-21
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a filtering device and a water purifier, wherein the filtering device comprises a filter element seat, a control knob, a filter element assembly and a connecting end cover, wherein the filter element seat is provided with a water inlet, a water outlet, an installation opening and a sewage draining outlet which are mutually communicated, a filter element cavity is arranged in the filter element seat, and the control knob is rotatably arranged at the installation opening so as to control the on-off of the water outlet and the sewage draining outlet. The filter element assembly is installed in the filter element cavity and is fixedly connected with the control knob. The connecting end cover is connected with one end of the filter element assembly deviating from the control knob and is arranged at the sewage discharge port, the distance from the center of the connecting end cover to the center of the filter element assembly is adjustable, and the connecting end cover is provided with a sealing part to seal the sewage discharge port. The technical scheme of the utility model can realize the filter device free of disassembly and cleaning.

Description

Filter device and water purifier

Technical Field

The utility model relates to the technical field of water purifiers, in particular to a filtering device and a water purifier.

Background

The water purifier is a water treatment device which carries out deep filtration and purification treatment on water quality according to the use requirement of the water. The water purifier is including the water inlet that lets in the water source, still including playing the filtering mechanism who purifies the water source effect, and the water source passes through the filter and realizes the filtration treatment of water, and during the filtration, some impurity are difficult to pass through the filter screen, can be stayed between filter screen and filter housing, so need regularly to dismantle the washing to the filter, and is inconvenient, and cleaning efficiency is also than low.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a filtering device, and aims to realize a filtering device free of disassembly and cleaning.

In order to achieve the above object, the present invention provides a filter device, comprising:

the filter element seat is provided with a water inlet, a water outlet, a mounting port and a drain outlet which are mutually communicated, and a filter element cavity is arranged inside the filter element seat;

the control knob is rotatably arranged at the mounting port to control the on-off of the water outlet and the sewage draining exit;

the filter element assembly is arranged in the filter element cavity and is fixedly connected with the control knob; and

the connecting end cover is connected with one end of the filter element assembly, which is far away from the control knob, is arranged at the sewage discharge port, the distance from the center of the connecting end cover to the center of the filter element assembly is adjustable, and a sealing part is arranged on the connecting end cover to seal the sewage discharge port;

the control knob rotates to enable the filtering device to be switched between a filtering state and a cleaning state, when the filtering state is achieved, the water outlet is opened, the sewage outlet is blocked by the sealing part, and water flows into the water inlet, is filtered by the filter element assembly and flows out of the water outlet; when the filter element is in a cleaning state, the distance from the center of the connecting end cover to the center of the filter element assembly is shortened, the sealing part is driven to move, so that the sewage draining outlet is opened, meanwhile, the control knob rotates to close the water outlet, and water flows into the water inlet to clean the filter element seat and flows out of the sewage draining outlet.

Optionally, an adjusting structure is arranged between the filter element assembly and the connecting end cover, and the control knob is rotated to drive the filter element assembly to rotate relative to the connecting end cover, so that the adjusting structure moves in a matched manner, and the distance from the center of the connecting end cover to the center of the filter element assembly is adjusted.

Optionally, the adjusting structure comprises a first abutting part mounted on the filter element assembly and a second abutting part mounted on the connecting end cover, the second abutting part comprises a first abutting section and a second abutting section, and the height of the first abutting section is greater than that of the second abutting section;

when in the filtering state, the first abutting part abuts against the first abutting section; when in the cleaning state, the first abutting part abuts against the second abutting section.

Optionally, an elastic piece is arranged between the sealing part and the sewage draining exit, the elastic piece enables the sealing part to always have a trend of being far away from the sewage draining exit, and the sewage draining exit is provided with a connecting part for fixing the elastic piece.

Optionally, the control knob orientation one side of filter element group spare is equipped with first installation department, filter element group spare orientation one side of control knob is equipped with the second installation department, first installation department with the second installation department is connected.

Optionally, a connection hole is formed in the control knob, the connection hole is communicated with the water outlet in a filtering state, a first sealing element is arranged between the control knob and the connection hole, and the first sealing element is annularly arranged on the water outlet.

Optionally, a stop member is disposed at an opening of the mounting opening to stop the control knob from coming off the filter element seat.

Optionally, the filter element seat includes a first housing and a second housing, the first housing is detachably connected to the second housing, the control knob is installed in the first housing, the connection end cap is installed in the second housing, and a second sealing member is disposed between the first housing and the second housing.

Optionally, a gear groove is formed in the second housing, the gear groove extends along the axial direction of the second housing, a gear piece is arranged on the connecting end cover, and the gear piece is inserted into the gear groove.

The utility model also provides a water purifier, which comprises a filtering device, wherein the filtering device comprises a filter element seat, a control knob, a filter element assembly and a connecting end cover, the filter element seat is provided with a water inlet, a water outlet, an installation opening and a sewage discharge opening which are mutually communicated, a filter element cavity is arranged in the filter element seat, and the control knob is rotatably arranged at the installation opening to control the connection and disconnection of the water outlet and the sewage discharge opening. The filter element assembly is installed in the filter element cavity and is fixedly connected with the control knob. The connecting end cover is connected with one end of the filter element assembly deviating from the control knob and is arranged at the sewage discharge port, the distance from the center of the connecting end cover to the center of the filter element assembly is adjustable, and the connecting end cover is provided with a sealing part to seal the sewage discharge port. The filter device is switched between a filtering state and a cleaning state by rotating the control knob, when in the filtering state, the water outlet is opened, the drain outlet is blocked by the sealing part, and water flows into the water inlet, is filtered by the filter element assembly and flows out of the water outlet; when the filter element is in a cleaning state, the distance from the center of the connecting end cover to the center of the filter element assembly is shortened to drive the sealing part to move, so that the sewage draining port is opened, and meanwhile, because the control knob rotates, the water outlet is closed, water flows into the water inlet to clean the filter element seat, and the water flows out of the sewage draining port.

According to the technical scheme, the control knob is installed at the installation port of the filter element seat, the filter element seat is provided with the water inlet, the water outlet, the installation port and the sewage draining port which are mutually communicated, the filter element cavity is formed in the filter element seat, the filter element assembly is installed in the filter element cavity, the control knob can drive the filter element assembly to rotate relative to the filter element seat so as to control the on-off of the water outlet, the connecting end cover is arranged between the filter element assembly and the sewage draining port, the distance from the center of the connecting end cover to the center of the filter element assembly can be adjusted through the rotation of the filter element assembly, and the end, facing the sewage draining port, of the connecting end cover is provided with the sealing part so as to control the on-off of the sewage draining port. When the filter is in a filtering state, the control knob is communicated with the water outlet, the sealing element seals the sewage outlet, and at the moment, water flow enters from the water inlet, is filtered by the filter element assembly and then flows out from the water outlet. Rotating control knob makes filter equipment become clean state, and control knob shutoff delivery port because control knob drives filter element group spare and rotates for the distance at connecting end cover center to filter element group spare's center diminishes, and connecting end cover drives the sealing member motion, in order to open the drain, makes rivers get into by the water inlet, and right filter element seat and filter element group spare wash, and discharge by the drain. When the interior of the filtering device needs to be cleaned, the filtering device can be cleaned only by rotating the control knob to adjust the filtering device to a filtering state, the cleaning of the interior of the filtering device can be completed, the filtering device is prevented from being disassembled one by one for cleaning, the cleaning difficulty is reduced, and the cleaning efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 an exploded view of one embodiment of a filter assembly of the present invention;

FIG. 2 is a cross-sectional view of the filter apparatus of FIG. 1 in a clean state;

FIG. 3 is a cross-sectional view of the filter assembly of FIG. 1 in a filter state;

FIG. 4 is a perspective view of the connecting end cap of the filter assembly of FIG. 1;

fig. 5 is a perspective view of a filter cartridge assembly in the filter device of fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Filter device	133	Second mounting part
110	Filter element seat	140	Connecting end cap
				111	Water inlet	141	Sealing part
112	Water outlet	142	Elastic piece
				113	Mounting port	143	Gear convex part
114	Drain outlet	150	Adjusting structure
				115	Filter element cavity	151	First contact part
116	Connecting part	152	Second abutting part
				117	Gear piece	153	First abutting section
120	Control knob	154	Second abutting section
				121	Connecting hole	160	First shell
122	First seal	161	Second seal
				130	Filter element assembly	170	Second shell
131	Filter element mounting rack	171	Stop groove
				132	Filter element

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides a filter apparatus 100.

In the embodiment of the present invention, as shown in fig. 1 to 3, the filter device 100 includes a filter element base 110, a control knob 120, a filter element assembly 130 and a connecting end cap 140, the filter element base 110 is provided with a water inlet 111, a water outlet 112, a mounting port 113 and a sewage outlet 114 which are mutually communicated, a filter element cavity 115 is arranged inside the filter element base 110, and the control knob 120 is rotatably mounted at the mounting port 113 to control the on-off of the water outlet 112 and the sewage outlet 114. The cartridge assembly 130 is mounted within the cartridge cavity 115 and is fixedly coupled to the control knob 120. The connecting end cap 140 is connected with one end of the filter element assembly 130 departing from the control knob 120 and is arranged at the sewage outlet 114, the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130 is adjustable, and the connecting end cap 140 is provided with a sealing part 141 to seal the sewage outlet 114. Wherein, the control knob 120 is rotated to switch the filtering device 100 between a filtering state and a cleaning state, when in the filtering state, the water outlet 112 is opened, the sewage outlet 114 is blocked by the sealing part 141, and water flows into the water inlet 111, is filtered by the filter element assembly 130, and flows out from the water outlet 112; in the cleaning state, the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130 is shortened to drive the sealing portion 141 to move, so that the sewage outlet 114 is opened, and meanwhile, due to the rotation of the control knob 120, the water outlet 112 is closed, and water flows into the water inlet 111 to clean the filter element seat 110 and flows out of the sewage outlet 114.

Specifically, the control knob 120 is installed at the installation opening 113, and is connected to the filter element assembly 130 and drives the filter element assembly 130 to rotate, the on/off of the water outlet 112 can be controlled by rotating the control knob 120, and the filter element assembly 130 is driven to control the on/off of the sewage outlet 114. Because the connecting end cover 140 is arranged between the filter element assembly 130 and the sewage draining exit 114, and the sealing part 141 is arranged on the connecting end cover 140, the distance from the center of the connecting end cover 140 to the center of the filter element assembly 130 can be controlled by rotating the filter element assembly 130, and then the sealing part 141 is driven to move so as to control the on-off of the sewage draining exit 114. In the filtering state (refer to fig. 3), the control knob 120 is communicated with the water outlet 112, the sealing member blocks the sewage outlet 114, and at this time, water flows in from the water inlet 111, is filtered by the filter element assembly 130, and then flows out from the water outlet 112. The control knob 120 is rotated to change the filtering apparatus 100 into a clean state (refer to fig. 2), the control knob 120 blocks the water outlet 112, the control knob 120 drives the filter element assembly 130 to rotate, so that the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130 is reduced, the connecting end cap 140 drives the sealing element to move, so as to open the sewage outlet 114, so that water flows into the filter element seat 110 and the filter element assembly 130 from the water inlet 111, and the water flows out of the sewage outlet 114 after being cleaned.

In this embodiment, the connecting cap 140 and the sealing portion 141 are formed separately from each other because the connecting cap 140 and the sealing portion 141 are made of different materials. The connecting end cap 140 and the sealing portion 141 may be fixed by means of snap fit, adhesive or interference fit. Of course, in other embodiments, the connecting end cap 140 and the sealing portion 141 may be fixed by integral molding.

In this embodiment, the filter element assembly 130 includes a filter element mounting bracket 131 and a filter element 132, the filter element 132 is mounted on the filter element mounting bracket 131, one end of the filter element mounting bracket 131 is connected to the control knob 120, and the other end is connected to the end cap 140.

According to the technical scheme, the control knob 120 is installed at the installation port 113 of the filter element seat 110, the filter element seat 110 is provided with the water inlet 111, the water outlet 112, the installation port 113 and the sewage draining port 114 which are communicated with each other, the filter element seat 110 is internally provided with the filter element cavity 115, the filter element assembly 130 is installed in the filter element cavity 115, the control knob 120 can drive the filter element assembly 130 to rotate relative to the filter element seat 110 so as to control the connection and disconnection of the water outlet 112, the connecting end cover 140 is arranged between the filter element assembly 130 and the sewage draining port 114, the distance from the center of the connecting end cover 140 to the center of the filter element assembly 130 can be adjusted through the rotation of the filter element assembly 130, and one end, facing the sewage draining port 114, of the connecting end cover 140 is provided with the sealing part 141 so as to control the connection and disconnection of the sewage draining port 114. In the filtering state (refer to fig. 3), the control knob 120 is communicated with the water outlet 112, the sealing part 141 seals the sewage outlet 114, and at the moment, water flows in from the water inlet 111, is filtered by the filter element assembly 130, and then flows out from the water outlet 112. The control knob 120 is rotated to change the filtering apparatus 100 into a clean state (refer to fig. 2), the control knob 120 blocks the water outlet 112, the control knob 120 drives the filter element assembly 130 to rotate, so that the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130 is reduced, the connecting end cap 140 drives the sealing element to move, so as to open the sewage outlet 114, so that water flows into the filter element seat 110 and the filter element assembly 130 from the water inlet 111, and the water flows out of the sewage outlet 114 after being cleaned. When the interior of the filtering device 100 needs to be cleaned, the inside of the filtering device 100 can be cleaned only by rotating the control knob 120 to adjust the filtering device 100 to a filtering state, so that the filtering device 100 is prevented from being cleaned one by one, the cleaning difficulty is reduced, and the cleaning efficiency is improved.

In order to smoothly adjust the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130, in an embodiment, referring to fig. 1 to 5, an adjusting structure 150 is provided between the filter element assembly 130 and the connecting end cap 140, and the filter element assembly 130 is driven to rotate relative to the connecting end cap 140 by turning the control knob 120, so that the adjusting structure 150 is moved in a matching manner, thereby adjusting the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130. Specifically, an adjusting structure 150 is provided between the filter element assembly 130 and the connecting end cap 140, and the filter element assembly 130 is rotated relative to the connecting end cap 140 by rotating the control knob 120, so that the relative rotation of the filter element assembly 130 is changed into the adjustment of the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130, and the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130 is controlled.

Further, in an embodiment, the adjustment structure 150 includes a first abutment 151 mounted on the filter element assembly 130 and a second abutment 152 mounted on the connecting end cap 140, the second abutment 152 includes a first abutment section 153 and a second abutment section 154, the height of the first abutment section 153 is greater than the height of the second abutment section 154; in the filtering state, the first abutting portion 151 abuts against the first abutting section 153; in the cleaning state, the first abutting portion 151 abuts against the second abutting section 154. Specifically, since the first abutting portion 151 and the second abutting portion 152 always abut, and the height of the first abutting section 153 is greater than the height of the second abutting section 154, the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130 becomes smaller by the rotation of the filter element assembly 130 relative to the connecting end cap 140, that is, when the first abutting portion 151 comes into abutment with the first abutting section 153 and then comes into abutment with the second abutting section 154. Thereby adjusting the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130. In addition, the first abutting section 153 is connected to the second abutting section 154, and in order to reduce the difficulty of relative sliding between the first abutting section 151 and the second abutting section 152, the cross sections of the first abutting section 151 and the second abutting section 152 are both smooth curved surfaces, that is, the first abutting section 153 is connected to the second abutting section 154 by a smooth curved surface.

In another embodiment, the adjusting structure 150 is an external thread disposed on the filter element assembly 130 and an internal thread disposed on the connecting end cap 140, and the internal thread and the external thread are both oblique threads, and the filter element assembly 130 is connected to the connecting end cap 140 by threads, and the distance from the center of the connecting end cap 140 to the center of the filter element assembly 130 is adjusted by the oblique threads.

In an embodiment, referring to fig. 1 to 3, an elastic member 142 is disposed between the sealing portion 141 and the drain outlet 114, the elastic member 142 makes the sealing portion 141 always have a tendency to be away from the drain outlet 114, and the drain outlet 114 is provided with a connecting portion 116 to fix the elastic member 142. Specifically, the elastic member 142 is disposed between the sewage draining outlet 114 and the sealing portion 141, one end of the elastic member is abutted to the sealing portion 141, the other end of the elastic member is connected to the connecting portion 116, the connecting portion 116 can be a connecting hole 121 formed in one end of the sewage draining outlet 114 close to the filter element cavity 115, the diameter of the connecting hole 121 is larger than that of the sewage draining outlet 114, so that an abutting ring portion is formed at the connecting portion of the connecting hole 121 and the sewage draining outlet 114, and the elastic member 142 is abutted to the abutting ring portion, so as to connect the sewage draining outlet 114 and the elastic member 142. The elastic member 142 makes the sealing part 141 always have a tendency to be away from the drain outlet 114, and when the distance from the center of the connection end cap 140 to the center of the filter element assembly 130 becomes smaller, the elastic member 142 pushes the sealing part 141 away from the drain outlet 114, so that the connection end cap 140 drives the sealing part 141 to move, thereby opening the drain outlet 114. The elastic member 142 reduces the difficulty of opening the sewage draining exit 114, and the elastic member 142 has a simple structure and is convenient to operate.

In this embodiment, the elastic member 142 is a compression spring, which has a simple structure and is convenient to install. Of course, in other embodiments, elastic structures having elasticity, such as elastic pieces, may be used. In this embodiment, the connecting portion 116 is a connecting hole 121 formed in the sewage hole. Of course, in other embodiments, other forms of connection 116 may be used.

To ensure that the filter element assembly 130 and the control knob 120 rotate together, in one embodiment, a first mounting portion is disposed on a side of the control knob 120 facing the filter element assembly 130, and a second mounting portion 133 is disposed on a side of the filter element assembly 130 facing the control knob 120, and the first mounting portion is connected to the second mounting portion 133. Specifically, control knob 120 is located to first installation department, and filter element subassembly 130 is located to second installation department 133, and first installation department is connected with second installation department 133 to with filter element subassembly 130 and control knob 120 fixed connection, thereby make filter element subassembly 130 and control knob 120 rotate jointly.

In this embodiment, the first mounting portion is a limiting convex portion, the second mounting portion 133 is a limiting groove, and the limiting convex portion is inserted into the limiting groove, so that the connection between the limiting groove and the limiting convex portion is achieved, and the filter element assembly 130 and the control knob 120 are fixedly connected, so that the filter element assembly 130 and the control knob 120 rotate together. Of course, in other embodiments, the first mounting portion may be a limiting groove, the second mounting portion 133 may be a limiting protrusion, or the first mounting portion and the second mounting portion 133 may be a clamping structure, or the filter element assembly 130 and the control knob 120 may be directly bonded together.

In an embodiment, the control knob 120 is provided with a connection hole 121, when in a filtering state, the connection hole 121 is communicated with the water outlet 112, a first sealing member 122 is disposed between the control knob 120 and the connection hole 121, and the first sealing member 122 is disposed around the water outlet 112. Specifically, when the filter device 100 is in the filtering state, the connection hole 121 is communicated with the water outlet 112, the first sealing member 122 seals the periphery of the water outlet 112, and when water flows in from the water inlet 111 and is filtered by the filter element assembly 130, the first sealing member 122 seals the periphery of the water outlet 112, so that the water flows out from the water outlet 112 only through the connection hole 121. In a clean state, the connection hole 121 is offset from the water outlet 112, and the first sealing member 122 seals the periphery of the water outlet 112, so that water flow is difficult to flow out from the water outlet 112.

The control knob 120 is provided with a plurality of first sealing members 122, so that the filter device 100 can block the water outlet 112 in both a filtering state and a cleaning state.

To reduce the possibility of the control knob 120 being removed from the mounting port 113, in one embodiment, a stop 117 is disposed at the opening of the mounting port 113 to prevent the control knob 120 from being removed from the cartridge seat 110. Specifically, the blocking member 117 is disposed on a side of the mounting opening 113 facing away from the control knob 120, and since the control knob 120 rotates in the filter cartridge seat 110, the control knob may be disengaged from the mounting opening 113 or may be displaced in the filter cartridge seat 110 during the rotation process, the blocking member 117 is disposed to reduce the possibility of the control knob 120 being disengaged from the mounting opening 113.

Wherein, the gear 117 is installed on the filter element seat 110 through a connecting screw, and has simple structure and convenient disassembly. The blocking member 117 may be directly adhered to the mounting opening 113, or may be connected by other fixing methods.

Referring to fig. 1 to 3 again, in an embodiment, the filter cartridge holder 110 includes a first housing 160 and a second housing 170, the first housing 160 is detachably connected to the second housing 170, the control knob 120 is installed in the first housing 160, the connection end cap 140 is installed in the second housing 170, and a second sealing member 161 is disposed between the first housing 160 and the second housing 170. Specifically, the filter cartridge base 110 includes a first housing 160 and a second housing 170, the first housing 160 and the second housing 170 are detachably connected to facilitate installation of the filter cartridge assembly 130 and the connection end cap 140, the control knob 120 is installed in the first housing 160, and the corresponding water inlet 111, the water outlet 112 and the installation port 113 are all opened on the first housing 160. The connection end cap 140 is installed in the second housing 170, and the corresponding soil discharge outlet 114 is opened on the second housing 170. The first housing 160 is removably coupled to the second housing 170 and encloses a filter element cavity 115, and the filter element assembly 130 is mounted in the filter element cavity 115. A second seal 161 is provided between the first housing 160 and the second housing 170 to reduce the likelihood of water leakage between the first seal 122 and the second seal 161.

Wherein, first casing 160 and second casing 170 can be dismantled and be connected, and in this embodiment, first casing 160 adopts the screw connection with second casing 170, simple structure, simple to operate. Of course, in other embodiments, the first housing 160 and the second housing 170 may be connected by a snap fit or an interference fit.

In an embodiment, the second housing 170 is provided with a retaining groove 171 therein, the retaining groove 171 extends along the axial direction of the second housing 170, and the connecting end cap 140 is provided with a retaining protrusion 143, and the retaining protrusion 143 is inserted into the retaining groove 171. Specifically, a stop groove 171 is formed in the second housing 170, a stop protrusion 143 is formed on the connecting end cap 140, and the stop protrusion 143 is inserted into the stop groove 171, so as to restrict the connecting cover from rotating relative to the second housing 170, thereby reducing the possibility of driving the connecting cover to rotate when the filter element assembly 130 rotates. And the mounting groove extends along the axial direction of the second housing 170 to an opening where the second housing 170 is connected to the first housing 160. When the connection end cap 140 is installed, the blocking protrusion 143 is inserted into the blocking groove 171 at the opening of the second housing 170 connected to the first housing 160, and the blocking groove 171 slides to the waste outlet 114.

The second housing 170 has a stop groove 171 therein, and the connecting end cap 140 has a stop protrusion 143 thereon. The second housing 170 may be provided with a catching protrusion 143, and the connecting cover 140 may be provided with a catching groove 171. Or a clamping structure is arranged between the second shell 170 and the connecting end cover 140, so that the connecting end cover 140 can only move along the length direction of the second shell 170 and is difficult to generate relative rotation.

The utility model further provides a water purifier, which comprises the filtering device 100, the specific structure of the filtering device 100 refers to the above embodiments, and the water purifier adopts all technical solutions of all the above embodiments, so that the water purifier at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A filter device, comprising:

2. The filter device according to claim 1, wherein an adjustment structure is provided between the filter element assembly and the connecting end cap, and wherein the adjustment structure is adapted to move in cooperation with rotation of the filter element assembly relative to the connecting end cap by rotation of the control knob, thereby adjusting the distance from the center of the connecting end cap to the center of the filter element assembly.

3. The filter apparatus of claim 2, wherein the adjustment structure comprises a first abutment mounted on the filter element assembly and a second abutment mounted on the connection endcap, the second abutment comprising a first abutment section and a second abutment section, the first abutment section having a height greater than the height of the second abutment section;

4. A filter device as claimed in claim 1, characterized in that an elastic element is arranged between the seal and the sewage drain, which elastic element causes the seal to always have a tendency to move away from the sewage drain, which sewage drain is provided with a connection to secure the elastic element.

5. The filter apparatus of claim 1, wherein the control knob is provided with a first mounting portion on a side facing the filter element assembly, the filter element assembly is provided with a second mounting portion on a side facing the control knob, the first mounting portion being connected to the second mounting portion.

6. The filtering device according to claim 1, wherein the control knob is provided with a connecting hole, the connecting hole is communicated with the water outlet in a filtering state, a first sealing member is arranged between the control knob and the connecting hole, and the first sealing member is annularly arranged on the water outlet.

7. The filter device of claim 1, wherein a stop is disposed at the opening of the mounting opening to prevent the control knob from being removed from the cartridge seat.

8. The filter device according to any one of claims 1 to 7, wherein the cartridge holder comprises a first housing and a second housing, the first housing and the second housing are detachably connected, the control knob is installed in the first housing, the connection end cap is installed in the second housing, and a second sealing member is arranged between the first housing and the second housing.

9. The filter device according to claim 8, wherein the second housing has a retaining groove therein, the retaining groove extending in an axial direction of the second housing, and the connection end cap has a retaining protrusion, the retaining protrusion being inserted into the retaining groove.

10. A water purifier characterized by comprising the filter device according to any one of claims 1 to 9.