Leading filter and clean drink equipment

文档序号：1030885 发布日期：2020-10-30 浏览：28次中文

阅读说明：本技术 一种前置过滤器及净饮设备 (Leading filter and clean drink equipment ) 是由王斌黄育忠张建芳刘文锋陈双梅于 2020-07-21 设计创作，主要内容包括：本发明涉及净饮设备的技术领域,提供了一种前置过滤器及净饮设备,其中前置过滤器包括：滤桶,过滤腔、进水管和出水管；过滤管组件,转动连接于滤桶的过滤腔,过滤管组件连通进水管和出水管；叠片滤芯,活动套设于过滤管组件上,叠片滤芯包括层叠设置的多个过滤叠片；调节组件,包括用于抵顶于叠片滤芯的第一端的第一抵顶件和用于抵顶于叠片滤芯的第二端的第二抵顶件,第一抵顶件和第二抵顶件之间的距离可调；以及转轮件,同轴固定于过滤管组件上；净饮设备设有上述的前置过滤器；本发明提供的前置过滤器及净饮设备具有以下优点：免除了需要拆解叠片滤芯进行清洗的繁杂步骤,降低了清洁的操作难度,同时提高了清洁的效果。(The invention relates to the technical field of clean drinking equipment, and provides a pre-filter and clean drinking equipment, wherein the pre-filter comprises: the filter vat, the filter chamber, the water inlet pipe and the water outlet pipe; the filter pipe assembly is rotatably connected to the filter cavity of the filter barrel and is communicated with the water inlet pipe and the water outlet pipe; the laminated filter element is movably sleeved on the filter pipe assembly and comprises a plurality of filter laminations which are arranged in a laminated mode; the adjusting assembly comprises a first abutting piece and a second abutting piece, the first abutting piece is used for abutting against the first end of the laminated filter element, the second abutting piece is used for abutting against the second end of the laminated filter element, and the distance between the first abutting piece and the second abutting piece is adjustable; the rotating wheel piece is coaxially fixed on the filter pipe assembly; the water purification device is provided with the pre-filter; the pre-filter and the water purification and drinking device provided by the invention have the following advantages: the complicated step of disassembling the laminated filter core for cleaning is avoided, the cleaning operation difficulty is reduced, and the cleaning effect is improved.)

1. A pre-filter, comprising:

the filter vat comprises a filter cavity, a water outlet pipe communicated with the filter cavity and a water inlet pipe communicated with the filter cavity, wherein the water inlet pipe is used for guiding a water body to be filtered to enter the filter vat and generate rotational flow;

the filter pipe assembly is rotatably connected in the filter cavity and is communicated with the water inlet pipe and the water outlet pipe;

the laminated filter element is movably sleeved on the filter tube assembly and comprises a plurality of filter laminations which are arranged in a laminated mode;

the adjusting assembly is used for adjusting the tightness state between filtering laminations of the lamination filter element and comprises a first abutting piece and a second abutting piece, the first abutting piece is abutted against the first end of the lamination filter element, the second abutting piece is abutted against the second end of the lamination filter element, and the distance between the first abutting piece and the second abutting piece is adjustable; and

the rotating wheel piece is coaxially fixed on the filter pipe assembly and drives the filter pipe assembly to rotate under the impact of rotational flow, and then the filter laminations in a loosening state are driven to rotate.

2. The prefilter of claim 1 wherein said filter tube assembly comprises a central tube received in said filter cartridge and a sleeve movably mounted on said central tube, said central tube communicating with said outlet tube, said sleeve communicating with said inlet tube, a plurality of said filter laminations movably mounted on said sleeve, said rotor element comprising a vaned tube coaxially mounted on said sleeve and a plurality of vanes circumferentially spaced about said vaned tube.

3. The prefilter of claim 2 wherein said adjusting assembly further comprises an adjusting member connected between said filter cartridge and said center tube for urging said center tube axially along said filter cartridge, said first abutting member being disposed on said center tube and said second abutting member being disposed on said sleeve.

4. The prefilter of claim 3 wherein a first end of said center tube is provided with a limiting tube for abutting against said first abutting member, said limiting tube being movably connected to said outlet tube, and a second end of said center tube is provided with a connecting post for threaded connection with said adjusting member.

5. The prefilter of claim 4 further comprising a drain pipe in communication with the exterior, said drain pipe being in communication with the interior of said adjusting member, said adjusting member defining a drain opening in communication with said lauter tub, said connecting post being movable in the axial direction of said adjusting member to close and open said drain opening.

6. The prefilter of claim 4 wherein said adjusting means further comprises a resilient member, one end of said resilient member abutting said limiting tube and the other end of said resilient member abutting said first abutting member.

7. The prefilter of claim 3 wherein said adjusting member further comprises a rotatable cap fixedly attached to said adjusting member, said rotatable cap being coaxially disposed with said adjusting member and having a portion thereof exposed outside said filter cartridge, said rotatable cap having a radius greater than a radius of said adjusting member.

8. The pre-filter of any one of claims 1 to 7, wherein one end of the water inlet pipe is in communication with the lauter tub, and the central axis of the water inlet pipe is tangential or at a predetermined angle to the transverse cross-section of the lauter tub.

9. The prefilter of claim 8 further comprising a spiral channel for directing a body of water to be filtered into said barrel in a spiral-like rotation, said spiral channel having an inlet in communication with said inlet pipe and an outlet in communication with said barrel.

10. A clean drink apparatus comprising a main unit and a pre-filter according to any one of claims 1 to 9, the pre-filter being mounted on the main unit.

Technical Field

The invention relates to the technical field of clean drinking equipment, in particular to a pre-filter and clean drinking equipment.

Background

Along with the development of society, consumers attach more and more importance to the safety and health problems of drinking water, and municipal tap water is usually mixed with trace amount of impurities such as silt and iron filings. In order to make the water quality of tap water reach safe and healthy drinking standards, a laminated filter is generally added at the front end of water purification equipment, drinking equipment or water purification equipment at present, and tap water is subjected to pre-filtration treatment through the laminated filter so as to remove particle impurities such as trace silt, scrap iron and the like mixed in the tap water.

However, because the lamination type filter normally works, certain pressing force exists between the stacked filtering laminations, impurities such as silt and iron filings in tap water easily block the filtering gap between the filtering laminations, and the impurities in the filtering gap are difficult to be washed clean, so that the filtering efficiency and the filtering effect are influenced. Currently, the laminated filter element is generally required to be loosened and stacked to compress the filter lamination and then self-cleaned, but the loosened filter lamination has poor cleaning effect and is easy to have impurities remained in the gap.

Disclosure of Invention

The invention aims to provide a front filter and a clean drinking device, which aim to solve the technical problem that the self-cleaning effect of filtering laminations of a lamination type filter is poor in the prior art.

In order to achieve the above object, the present invention adopts a technical solution that is a prefilter, comprising:

the filter pipe assembly is rotatably connected in the filter cavity and is communicated with the water inlet pipe and the water outlet pipe;

the laminated filter element is movably sleeved on the filter tube assembly and comprises a plurality of filter laminations which are arranged in a laminated mode;

In one embodiment, the filter tube assembly comprises a central tube accommodated in the filter vat and a sleeve movably sleeved on the central tube, the central tube is communicated with the water outlet tube, the sleeve is communicated with the water inlet tube, the plurality of filter laminations are movably sleeved on the sleeve, and the rotating wheel element comprises a vane tube coaxially sleeved on the sleeve and a plurality of vanes which are distributed at intervals along the circumferential direction of the vane tube.

In one embodiment, the adjusting assembly further comprises an adjusting member connected between the filter barrel and the central tube for driving the central tube to move axially along the filter barrel, the first abutting member is disposed on the central tube, and the second abutting member is disposed on the sleeve.

In one embodiment, a first end of the central tube is provided with a limiting tube used for abutting against the first abutting piece, the limiting tube is movably connected in the water outlet tube, and a second end of the central tube is provided with a connecting column used for being in threaded connection with the adjusting piece.

In one embodiment, the prefilter further comprises a drain pipe communicated with the outside, the drain pipe is communicated with the inside of the adjusting piece, the adjusting piece is provided with a drain hole communicated with the filter barrel, and the connecting column moves along the axial direction of the adjusting piece to close and open the drain hole.

In one embodiment, the adjusting assembly further includes an elastic member, one end of the elastic member abuts against the limiting pipe, and the other end of the elastic member abuts against the first abutting member.

In one embodiment, the adjusting assembly further comprises a rotating cover fixedly connected with the adjusting piece, the rotating cover and the adjusting piece are coaxially arranged, part of the rotating cover is exposed out of the filter barrel, and the radius of the rotating cover is larger than that of the adjusting piece.

In one embodiment, one end of the water inlet pipe is communicated with the filter vat, and the central axis of the water inlet pipe is tangent to the transverse section of the filter vat or forms a predetermined included angle.

In one embodiment, the prefilter further comprises a spiral channel for guiding the water to be filtered to spirally and rotatably flow into the filter vat, wherein the water inlet of the spiral channel is communicated with the water inlet pipe, and the water outlet of the spiral channel is communicated with the filter vat.

Another objective of the present invention is to provide a clean drinking device, which comprises a main machine and the pre-filter mentioned above, wherein the pre-filter is mounted on the main machine.

The pre-filter and the water purification equipment provided by the invention have the beneficial effects that:

the preposed filter is characterized in that a filter tube assembly is arranged in a filter barrel, a lamination filter core is movably sleeved on the filter tube assembly, an adjusting assembly for adjusting the tightness of filter laminations of the lamination filter core is arranged, and a rotating wheel piece coaxially fixed on the filter tube assembly is also arranged; when the laminated filter element needs to be used, the distance between the first abutting piece and the second abutting piece is reduced, so that the first abutting piece abuts against the first end of the laminated filter element along the axial direction, the second abutting piece abuts against the second end of the laminated filter element along the axial direction, a plurality of filtering laminations of the laminated filter element are in a compact state, and the filtering effect on particle impurities such as silt, scrap iron and the like mixed in water is improved; when the front filter needs to be cleaned, the distance between the first abutting piece and the second abutting piece is enlarged, so that the first abutting piece is far away from the first end of the laminated filter element along the axial direction, the plurality of filter laminations of the laminated filter element are in a loose state, namely, gaps among the plurality of filter laminations are enlarged, particle impurities in the gaps are discharged from the gaps under the washing of vortex, and meanwhile, the vortex impacts the runner piece to drive the filter pipe assembly to rotate, so that the plurality of filter laminations are guided to rotate, and the quantity of the impurities in the gaps between every two adjacent filter laminations in each group is different, so that the rotating speeds of the two adjacent filter laminations are different, the two adjacent filter laminations are enabled to rotate relatively, and the impurities in the gaps are favorably discharged; the pre-filter of the embodiment can complete self-cleaning without disassembling the filter lamination, thereby improving the use experience of users.

Drawings

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

FIG. 1 is a perspective view of a pre-filter according to an embodiment of the present invention;

FIG. 2 is an exploded view of a pre-filter provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a pre-filter provided in accordance with an embodiment of the present invention;

FIG. 4 is a perspective block diagram of a center tube, a sleeve and an adjustment member provided in accordance with an embodiment of the present invention;

FIG. 5 is a perspective view of a filter stack according to an embodiment of the present invention;

fig. 6 is a perspective view of another aspect of a filter stack according to embodiments of the present invention.

The figures are numbered:

1-a filter vat; 11-a water inlet pipe; 12-a water outlet pipe; 13-a helical channel;

2-a laminated filter element; 21-filtration lamination; 211-a body; 212-a first inclined surface; 213-a second inclined surface; 214-first filter ribs; 215-second filter rib;

3-a regulating component; 31-a first abutting member; 32-a second abutting piece; 33-an adjustment member; 34-an elastic member; 35-a sewage draining hole; 36-a rotating cap;

4-a runner; 41-a bladed tube; 42-blades;

10-a filter tube assembly;

5-a central tube; 51-a first water inlet hole; 52-connecting column; 53-a limit tube; 531-sliding groove;

6-a sleeve; 61-a second water inlet hole;

7-a sewage draining pipe.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the invention, and do not indicate that the device or component must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as indicating a number of technical features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The following describes a specific implementation of the present invention in more detail with reference to specific embodiments:

as shown in fig. 1 to 3, the pre-filter provided in the embodiment of the present invention is suitable for pre-filtering of water purification equipment, drinking water equipment, and water purification equipment, and filtering particulate impurities such as silt, iron filings, and the like in tap water.

The prefilter of this embodiment includes: the filter barrel comprises a filter barrel 1, a filter pipe assembly 10, a laminated filter element 2, an adjusting assembly 3 for adjusting the tightness state between filter laminations 21 of the laminated filter element 2 and a rotating wheel piece 4 for driving the filter laminations 21 in the loosened state to rotate. The filter vat 1 comprises a filter cavity, and a water inlet pipe 11 and a water outlet pipe 12 which are communicated with the filter cavity, wherein the water inlet pipe 11 is used for guiding water to be filtered into the filter vat 1 and generating rotational flow, and the water outlet pipe 12 is used for outputting the water which is filtered in the filter vat 1; the filter tube assembly 10 is rotatably connected in a filter cavity of the filter barrel 1, the filter tube assembly 10 is communicated with a water inlet tube 11 and a water outlet tube 12, the filter barrel 1 is in a cylindrical shape, and the filter tube assembly 10 is arranged along the axial direction of the filter barrel 1; the laminated filter element 2 is movably sleeved on the filter pipe assembly 10, the laminated filter element 2 comprises a plurality of filter laminations 21 which are arranged in a laminated mode, the plurality of filter laminations 21 can move along the axial direction of the filter pipe assembly 10 in a loose state and can rotate around the axis of the filter pipe assembly 10, gaps for filtering are formed between two adjacent filter laminations 21 in a compression state, and when water flows through the gaps, granular impurities can be clamped in the gaps, so that the impurities of the water passing through the gaps are reduced; the adjusting assembly 3 is used for adjusting the loose state between the filtering laminations 21 of the laminated filter element 2, the adjusting assembly 3 comprises a first abutting piece 31 for abutting against a first end of the laminated filter element 2 and a second abutting piece 32 for abutting against a second end of the laminated filter element 2, the first abutting piece 31 abuts against the first end of the laminated filter element 2 along the axial direction of the filter barrel 1, the second abutting piece 32 abuts against the second end of the laminated filter element 2 along the axial direction of the filter barrel 1, the distance between the first abutting piece 31 and the second abutting piece 32 is adjustable, when the first abutting piece 31 moves close to the laminated filter element 2, the distance between the first abutting piece 31 and the second abutting piece 32 is reduced, so that the laminated filter element 2 is in a compressed state and can filter a water body, and when the first abutting piece 31 moves away from the laminated filter element 2, the distance between the first abutting piece 31 and the second abutting piece 32 is enlarged, so that the laminated filter element 2 is in the loose state, the gaps between the filter laminations 21 can be cleaned by water; the rotating wheel piece 4 is coaxially fixed on the filter pipe assembly 10, and the rotating wheel piece 4 drives the filter pipe assembly 10 to rotate under the impact of the rotational flow, so as to drive the plurality of filter laminations 21 in a loosening state to rotate.

The working principle of the prefilter provided by the embodiment is as follows:

the pre-filter filters a water body, a water inlet pipe 11 is connected with tap water, the tap water forms a vortex in the filter barrel 1 under the guidance of the water inlet pipe 11, the distance between a first abutting part 31 and a second abutting part 32 of the adjusting assembly 3 is reduced, so that the laminated filter element 2 arranged between the first abutting part 31 and the second abutting part 32 is in a compression state, a small gap is formed between two adjacent filter laminated sheets 21, the tap water enters the gap after forming the vortex in the filter barrel 1, particle impurities in the tap water are clamped in the gap, and the tap water enters the inside of the filter pipe assembly 10 after passing through the gap and is discharged from a water outlet pipe 12;

the pre-filter carries out self-cleaning operation, a water inlet pipe 11 is connected with tap water, the tap water forms vortex in a filter barrel 1 under the guide of the water inlet pipe 11, the distance between a first abutting part 31 and a second abutting part 32 of an adjusting component 3 is enlarged, so that a laminated filter core 2 arranged between the first abutting part 31 and the second abutting part 32 is in a loose state, a larger gap is formed between two adjacent filter laminated sheets 21, particle impurities are washed away by the vortex and fall off from the gap, in addition, the vortex impacts a rotating wheel part 4 to rotate the rotating wheel part 4, further, a filter pipe component 10 is driven to rotate, so that the filter laminated sheets 21 are driven to rotate, the two adjacent filter laminated sheets 21 are relatively rotated, the particle impurities in the gap are not easy to attach to the filter laminated sheets 21, the particle impurities in the gap are easier to be discharged, the cleaning degree is improved, the particle impurities are discharged from the gap and then deposited at the bottom of the filter barrel 1, then the sewage mixed with a large amount of particle impurities is discharged out of the filter vat 1, and the self-cleaning of the pre-filter is completed.

The pre-filter provided by the embodiment has the beneficial effects that:

the pre-filter is provided with a filter pipe assembly 10 in a filter barrel 1, a lamination filter core 2 is movably sleeved on the filter pipe assembly 10, an adjusting assembly 3 for adjusting the tightness state of filter laminations 21 of the lamination filter core 2 is arranged, and a rotating wheel assembly 4 coaxially fixed on the filter pipe assembly 10 is also arranged; when the laminated filter element 2 needs to be used, the distance between the first abutting piece 31 and the second abutting piece 32 is reduced, so that the first abutting piece 31 abuts against the first end of the laminated filter element 2 along the axial direction, the second abutting piece 32 abuts against the second end of the laminated filter element 2 along the axial direction, the plurality of filtering laminations 21 of the laminated filter element 2 are in a compression state, and the filtering effect on particle impurities such as silt, scrap iron and the like mixed in water is improved; when the pre-filter needs to be cleaned, the distance between the first abutting part 31 and the second abutting part 32 is enlarged, so that the first abutting part 31 is far away from the first end of the laminated filter element 2 along the axial direction, the plurality of filter laminations 21 of the laminated filter element 2 are in a loose state, namely, gaps among the plurality of filter laminations 21 are enlarged, particle impurities in the gaps are discharged from the gaps under the scouring of eddy currents, and meanwhile, the eddy currents impact the rotating wheel part 4 to further drive the filter tube assembly 10 to rotate, so that the plurality of filter laminations 21 are guided to rotate, and the quantity of impurities existing in the gaps between two adjacent filter laminations 21 in each group is different, so that the friction force between the two adjacent filter laminations 21 is different, the rotating speed is different, the two adjacent filter laminations 21 are enabled to rotate relatively, and the impurities in the gaps are discharged.

It should be further explained that when the prefilter filters tap water, the rotating wheel element 4 does not rotate, and the water body forming vortex in the filter barrel 1 can enter the gap formed by the filter lamination 21 in a tangential direction, which is more beneficial to improving the effect of gap filtration; when the pre-filter is self-cleaned, the vortex can drive the runner 4 to rotate, and further drive the filter lamination 21 to rotate, so as to achieve the self-cleaning effect; from the above, it can be seen that the vortex formed by the water inlet pipe 11 in the different working states of the pre-filter has different functions, i.e. the water inlet pipe 11 integrates at least two functions, so as to improve the integration level of the pre-filter and reduce the volume of the pre-filter.

Referring to fig. 4, in one embodiment, the filter tube assembly 10 includes a central tube 5 received in the filter barrel 1 and a sleeve 6 movably sleeved on the central tube 5, the central tube 5 is communicated with the water outlet tube 12, the sleeve 6 is communicated with the water inlet tube 11, the plurality of filter laminations 21 are movably sleeved on the sleeve 6, and the rotary wheel element 4 includes a vane tube 41 coaxially sleeved on the sleeve 6 and a plurality of vanes 42 spaced apart from each other along a circumferential direction of the vane tube 41. Specifically, the first end of the central tube 5 is an open end, the second end of the central tube is a closed end, the tube wall of the central tube 5 is provided with a first water inlet hole 51, the first water inlet hole 51 is communicated with the inside of the central tube 5, and the inside of the central tube 5 is communicated with the water outlet tube 12; the first end and the second end of the sleeve 6 are both open ends, the pipe wall of the sleeve 6 is provided with a second water inlet hole 61 communicated with the interior of the sleeve 6, the second water inlet hole 61 is communicated with the first water inlet hole 51, and the interior of the sleeve 6 is used for accommodating the central pipe 5; when the tap water is input into the filter barrel 1 through the water inlet pipe 11, the tap water enters the second water inlet hole 61 through the laminated filter element 2, then flows into the first water inlet hole 51, and further enters the central pipe 5, so that the tap water is discharged from the water outlet pipe 12. The water of vortex strikes to blade 42 on, and blade 42 pushes down blade pipe 41 under the effect of impact force, and then drives sleeve 6 and rotate, and on sleeve 6 was located to a plurality of filter lamination 21 movable sleeve, filter lamination 21 and sleeve 6 between have the frictional force of mutually supporting production, consequently, can drive filter lamination 21 and rotate when sleeve 6 takes place to rotate.

In one embodiment, the adjusting assembly 3 further comprises an adjusting element 33 connected between the lauter tub 1 and the central tube 5 for driving the central tube 5 to move axially along the lauter tub 1, the first abutting element 31 being provided on the central tube 5 and the second abutting element 32 being provided on the sleeve 6. Specifically, the filter vat 1, the central tube 5 and the sleeve 6 are coaxially arranged, and the adjusting member 33 drives the central tube 5 to move along the axial direction of the filter vat 1, so as to adjust the distance between the first abutting member 31 and the second abutting member 32, thereby adjusting the tightness state of the laminated filter element 2.

Specifically, the second end of the central tube 5 is provided with a connecting column 52 for insertion into the adjusting member 33, and the column wall of the connecting column 52 is provided with an external thread that mates with the internal thread of the adjusting member 33. In this embodiment, the user rotates regulating part 33, because spliced pole 52 is located on center tube 5, center tube 5 can only move along the axis direction, and consequently the cooperation of external screw thread and internal thread makes spliced pole 52 move along the axis, and then drives center tube 5 and remove, and both cooperation simple structures, external screw thread and internal thread are connected reliably simultaneously, are favorable to improving the durability of this cooperation structure.

In one embodiment, the first end of the central tube 5 is provided with a limiting tube 53 for abutting against the first abutting member 31, and the limiting tube 53 is movably connected to the water outlet tube 12. In this embodiment, the spacing tube 53 is in clearance fit with the water outlet tube 12, and can move up and down along the axis of the part of the water outlet tube 12 connected with the filter vat 1, so as to facilitate the operation of a user.

Specifically, the inner wall of the limiting pipe 53 is provided with a sliding groove 531 along the axis, and the inner wall of the water outlet pipe 12 is provided with a sliding block matched with the sliding groove 531. In this embodiment, the sliding grooves 531 and the sliding blocks are matched to limit the moving direction of the central tube 5, so that the central tube 5 can only move along the axial direction, and the first abutting piece 31 arranged on the central tube 5 and the second abutting piece 32 arranged on the sleeve 6 also move along the axial direction through the above design, and then can abut against the two ends of the laminated filter element 2 along the axial direction respectively, so as to adjust the tightness state of the laminated filter element 2.

In one embodiment, the adjusting assembly 3 further includes an elastic member 34, one end of the elastic member 34 abuts against the limiting tube 53, and the other end of the elastic member 34 abuts against the first abutting member 31. In this embodiment, the limiting pipe 53 does not directly abut against the first abutting member 31, but the elastic member 34 elastically connects the limiting pipe 53 and the first abutting member 31, so that it is avoided that when the limiting pipe 53 abuts against the first abutting member 31, an excessive abutting force is suddenly applied to the first end of the laminated filter element 2, and the excessive abutting force may generate an impact and cause damage to the laminated filter element 2, and by elastically connecting the first abutting member 31 and the limiting pipe 53, a buffer structure is provided therebetween, so that even if the excessive abutting force is applied to the limiting pipe 53, the elastic member 34 can also have its buffer effect, thereby avoiding damage to the laminated filter element 2.

Specifically, the elastic member 34 is a spring, the spring is sleeved on the central tube 5, the edge of the limiting tube 53 protrudes out of the edge of the central tube 5, the joint of the limiting tube 53 and the central tube 5 forms a structure of a limiting table, and then one end of the spring abuts against the limiting table.

In one embodiment, the prefilter further comprises a sewage pipe 7 communicated with the outside, the sewage pipe 7 is communicated with the inside of the adjusting piece 33, the adjusting piece 33 is provided with a sewage hole 35 communicated with the filter barrel 1, and the connecting column 52 moves along the axial direction of the adjusting piece 33 to close and open the sewage hole 35. Specifically, a user rotates the adjusting member 33 to drive the connecting column 52 to move upwards, open the sewage draining hole 35, meanwhile, the limiting pipe 53 moves upwards and does not abut against the elastic member 34 any longer, the elastic member 34 does not apply elastic force on the first abutting member 31 any longer, and the distance between the first abutting member 31 and the second abutting member 32 is enlarged, so that the laminated filter element 2 is in a loose state, and during cleaning operation, sewage mixed with particle impurities can be discharged from the sewage draining hole 35 to the filter barrel 1, so that the sewage is prevented from being discharged from the filter barrel 1 through the water outlet pipe 12, and the pollution of the water outlet pipe 12 is avoided; the user only needs operation regulating part 33 can open drain hole 35, makes lamination filter core 2 be not hard up state simultaneously, is convenient for wash, and above-mentioned design has improved the convenient degree that the leading filter of user's operation washing.

In one embodiment, adjusting assembly 3 further comprises a rotating cover 36 fixedly connected to adjusting member 33, rotating cover 36 is coaxially disposed with adjusting member 33, and a portion of rotating cover 36 is exposed outside filter tub 1, and a radius of rotating cover 36 is larger than a radius of adjusting member 33. In this embodiment, should be convenient for the user to rotate regulating part 33 through setting up this rotation, can understand that, the radius of rotatory lid 36 is greater than the radius of regulating part 33, and according to lever principle, this design can make the user use less dynamics can rotate regulating part 33, has improved user's use experience.

In one embodiment, one end of the inlet pipe 11 communicates with the lauter tub 1, and the central axis of the inlet pipe 11 is tangential to the transversal cross-section of the lauter tub 1. In this embodiment, above-mentioned design can be through the inner wall entering lauter tub 1 of tangential inlet tube 11 guide water of treating to filter along lauter tub 1, guarantees that the direction of rivers is tangent with lauter tub 1's inner wall for rivers can be along the rotatory tenesmus of lauter tub 1's inner wall under the effect of centrifugal force, and then produce the whirl of quick rotation, prolonged rivers and in lauter tub 1 internal flow's time. In this way, the granular impurities such as silt, iron filings and the like in the water body (such as tap water) to be filtered are rapidly settled and separated to the bottom of the filter barrel 1 along the inner wall of the filter barrel 1 under the action of the centrifugal force of the rotating water flow due to the heavier gravity of the filter barrel, and finally, the sediment is generated at the bottom of the filter barrel 1, so that the granular impurities such as silt, iron filings and the like in the water flow can be greatly reduced to pass through the laminated filter element 2, more granular impurities can be effectively prevented from being adhered to the laminated filter element 2, the laminated filter element 2 is prevented from being blocked, the filtering efficiency and the filtering effect of the laminated filter element 2 are further improved, and the service; in addition, when the front filter is cleaned, the water inlet pipe 11 guides the water body to form a vortex, the vortex drives the rotating wheel piece 4 to rotate, and then drives the laminated filter element 2 to rotate, so that the cleaning efficiency is improved, and meanwhile, the cleaning degree is improved.

In particular, it is understood that in another embodiment of the present application, the axis of the inlet pipe 11 may also form a predetermined angle with the transverse section of the lauter tub 1, and the predetermined angle may be maintained within an angle range of 0 ° to 20 °. In other words, the angle between the central axis of the inlet pipe 11 and the tangent of the specific point of the transverse section of the lauter tub 1 is 5 °, 10 °, 15 °, allowing the angular deviation of the axis of the inlet pipe 11 and the tangent of the specific point of the transverse section of the lauter tub 1 to be 5 °, 10 °, 15 °, but not only limited to the case that the axis of the water inlet pipe 11 is tangent to the transverse section of the lauter tub 1 (when the deviation angle of the tangent of the axis of the water inlet pipe 11 to the specific point of the transverse section of the lauter tub 1 is 0 °), it is only necessary to ensure that the water flow guided into the lauter tub 1 through the water inlet pipe 11 can generate rotational flow along the inner wall of the lauter tub 1, so that the water flow can rotate and fall along the inner wall of the lauter tub 1 under the action of centrifugal force, and then produce the whirl of quick rotation, realize that particle impurities such as silt, iron fillings in the rivers then can produce the settlement separation under the combined action of self gravity and centrifugal force.

In one embodiment, the prefilter further comprises a spiral channel 13 for guiding the water to be filtered to flow into the filter vat 1 in a spiral rotation manner, wherein the water inlet of the spiral channel 13 is communicated with the water inlet pipe 11, and the water outlet of the spiral channel 13 is communicated with the filter vat 1.

In this embodiment, with the water inlet and the inlet tube 11 intercommunication of helical passage 13, with the delivery port and the lauter tub 1 intercommunication of helical passage 13, then accessible inlet tube 11 will wait to filter the water guide and get into helical passage 13, make rivers flow into helical passage 13 by the tangential direction of helical passage 13, reduce the loss of rivers kinetic energy, have great centrifugal force when making rivers get into lauter tub 1. Spiral channel 13 can guide the quick rotatory flow of rivers, when rotatory rivers that flow get into lauter tub 1, can obtain along the tangential velocity that the inner wall vortex of lauter tub 1 flows and along the perpendicular tenesmic whereabouts speed of inner wall of lauter tub 1 betterly, thereby the time that rivers flow in lauter tub 1 has been prolonged, can make silt in the rivers, granule impurity such as iron fillings, can be quick, fully along the bottom of the inner wall sedimentation separation to lauter tub 1 of lauter tub 1, further reduce silt in the rivers, granule impurity such as iron fillings adheres on lamination filter core 2, effectively prevent lamination filter core 2 to block up, and then improved lamination filter core 2's filtration efficiency and filter effect.

As shown in fig. 5, in one embodiment, the laminated filter element 2 includes a plurality of stacked filter laminates 21, each of the filter laminates 21 includes an annular body 211, the body 211 is formed with a first inclined surface 212 and a second inclined surface 213, the first inclined surface 212 and the second inclined surface 213 are parallel to each other and intersect with an axis of the body 211 at a predetermined angle, the first inclined surface 212 and the second inclined surface 213 are respectively disposed at upper and lower sides of the body 211, the first inclined surface 212 is provided with a plurality of first filter ribs 214 arranged at intervals, the first filter ribs 214 extend from an outer side of the first inclined surface 212 to an inner side of the first inclined surface 212, and a first filter passage is formed between the first inclined surface 212, the second inclined surface 213 connected to the first inclined surface 212, and two adjacent first filter ribs 214.

The filtering principle of the laminated filter cartridge 2 provided in this embodiment is as follows:

a plurality of filtering laminations 21 are stacked along the axis direction to form a lamination filter element 2, and water to be filtered enters the lamination filter element 2 from the outer side of the lamination filter element 2 and then enters the inner side of the lamination filter element 2 to be discharged; wherein be formed with first filtration passageway between two adjacent filtration lamination 21, when the water got into first filtration passageway from the outside, its impurity can depend on first inclined plane 212 and second inclined plane 213, purifies the water for the water after purifying gets into lamination filter core 2 inboard.

The laminated filter element 2 provided by the embodiment has the advantages that:

when the laminated filter element 2 is used for filtering water, water mixed with impurities enters the laminated filter element 2 from the outer side of the laminated filter element 2 and then enters the inner side of the laminated filter element 2 to finish water filtering, wherein when the water flows through a filtering channel formed between two adjacent filtering laminated sheets 21, the impurities are blocked in the filtering channel to realize a water purifying effect, and in the embodiment, the first inclined surface 212 and the second inclined surface 213 which are intersected with the axis of the body 211 are arranged, so that the impurities are blocked by the first inclined surface 212 and the second inclined surface 213 when passing through the filtering channel, and more impurities are attached to the first inclined surface 212 and the second inclined surface 213, so that the water purifying efficiency and the water purifying effect are improved; in addition, this embodiment is through setting up the first filtration sand grip 214 of interval arrangement for can not compress first filtration passageway because of hydraulic pressure's squeezing action between the first inclined plane 212 that meets and the second inclined plane 213, guarantee the efficiency of passing through of water, guarantee water purification efficiency promptly.

In one embodiment, a plurality of second filtering protrusions 215 are disposed on the second inclined surface 213 at intervals, the second filtering protrusions 215 extend from the outer edge of the second inclined surface 213 to the inner edge of the second inclined surface 213, and a second filtering channel is formed between the second inclined surface 213, the first inclined surface 212 connected to the second inclined surface 213, and two adjacent second filtering protrusions 215. In this embodiment, through the upper and lower both sides at body 211 be formed with first filtration passageway and second filtration passageway, increased filtration passageway's quantity manyfold, improved the efficiency of passing through of water, and then promoted water purification efficiency.

The beneficial effect of the clean drink equipment that this embodiment provided lies in:

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

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