CN210544414U - Filter core end cover assembly and filter core - Google Patents

Abstract

The utility model discloses a filter element end cover component and a filter element, wherein, the filter element end cover is in a hollow cylinder shape, and a filter membrane element is arranged inside the filter element end cover; a top cover is arranged at one end of the filter element end cover so as to seal one end of the filter element end cover; the middle part of the top cover is provided with a central hole, the central tube is arranged in the central hole, and the filter membrane element is arranged around the central tube, so that purified water generated after raw water is filtered by the filter membrane element flows into the central tube through the water collecting hole; the top cover is provided with a plurality of drain holes, and wastewater generated by filtering through the filter membrane element is drained through the drain holes. The utility model discloses an adopt the top cap that is provided with the wash port for the raw water just can discharge through the filter membrane element through the filter core outside of wash port discharge through the waste water that the filter membrane element produced after filtering, because the raw water needs pass through completely, and raw water filtration efficiency is high, along with the extension of rivers runner, improves the problem of the waste water that current filter core structure exists.

Description

Filter core end cover assembly and filter core

Technical Field

The utility model relates to a water purification unit field, in particular to filter core end cover subassembly and filter core.

Background

The water-saving concept conforms to the current industrial situation and is a development trend of the technology, the recovery rate of the current high-flux reverse osmosis machine is mainly 50%, 1 ton of wastewater can be generated under the condition of generating 1 ton of pure water, and the wastewater is not easy to be utilized, so that great waste is caused.

In the existing filter element structure, the arrangement of the end cover part is unreasonable, so that the amount of waste water generated after raw water is filtered by a filter membrane is large, and water resources are wasted; because the runner is shorter, the velocity of water flow is slow, cause the easy jam of filter membrane to pollute, shortened the life of filter membrane.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a filter core end cover subassembly and filter core, aim at improving the problem that the water waste, the filter membrane that present filter core exists block up the pollution easily.

In order to achieve the purpose, the utility model provides a filter element end cover assembly which is used for installing a filter element assembly, wherein the filter element assembly is provided with a filter membrane element and a central tube, the central tube is provided with a water collecting hole, the filter element end cover is in a hollow tube shape, and the filter membrane element is arranged inside the filter element end cover;

a top cover is arranged at one end of the filter element end cover so as to seal one end of the filter element end cover;

the middle part of the top cover is provided with a central hole, the central tube is arranged in the central hole, and the filter membrane element is arranged around the central tube, so that purified water generated after raw water is filtered by the filter membrane element flows into the central tube through the water collecting hole;

the top cover is provided with a plurality of drain holes, and wastewater generated by filtering through the filter membrane element is drained through the drain holes.

Optionally, a boss is arranged on the top cover;

the drain hole is a through hole arranged on the boss.

Optionally, the boss annularly surrounds the central hole edge;

the drain holes are uniformly distributed on the boss along the circumferential direction of the boss.

Optionally, ribs are arranged on the end face of one side of the top cover facing the filter membrane element;

the ribs are arranged on the top cover in an annular array by taking the center of the center hole as the center, and an installation position for positioning the filter membrane element is formed between every two adjacent ribs;

the drain hole corresponds to the mounting region, and one end of the filter membrane element, which is close to the top cover, is arranged in the mounting region, so that waste water generated by filtering through the filter membrane element is drained through the drain hole.

Optionally, a plurality of groups of filter membrane elements are arranged in the filter element end cover;

the filter membrane elements are arranged in an annular array by taking the center of the center hole as the center;

and one end of the filter membrane element, which faces the top cover, is adhered to the corresponding mounting area through glue.

Optionally, one end of the central tube extends out of the outer part of one side of the top cover, which is away from the filter membrane element, and a first waterway conversion piece is arranged on the central tube;

the first waterway conversion piece is sleeved on the outer wall of the central pipe and abuts against one side, away from the filter membrane element, of the top cover;

and the first waterway conversion piece is provided with a water passing hole corresponding to the position of the water discharging hole.

Optionally, a positioning pipe is arranged inside the first waterway conversion piece;

the positioning pipe is coaxial with the central pipe, and the positioning pipe is inserted into the inner side of the central pipe so that purified water in the central pipe is discharged through the positioning pipe.

The utility model provides a filter element based on the filter element end cover component, which comprises a filter shell, a connecting seat, a lower end cover arranged in the filter shell and the filter element end cover component;

the filter element end cover assembly is used for installing a filter element assembly, the filter element assembly is provided with a filter membrane element and a central pipe, the central pipe is provided with a water collecting hole, the filter element end cover is in a hollow cylindrical shape, and the filter membrane element is arranged inside the filter element end cover;

a top cover is arranged at one end of the filter element end cover so as to seal one end of the filter element end cover;

the middle part of the top cover is provided with a central hole, the central tube is arranged in the central hole, and the filter membrane element is arranged around the central tube, so that purified water generated after raw water is filtered by the filter membrane element flows into the central tube through the water collecting hole;

a plurality of drain holes are formed in the top cover, and wastewater generated by filtering through the filter membrane element is drained through the drain holes;

the connecting seat is arranged at one end of the filter shell;

the filter element end cover is arranged at one end of the filter shell close to the connecting seat;

the lower end cover and the filter element end cover are respectively arranged at two ends of the filter membrane element in an aligned mode, so that the filter element end cover and the lower end cover respectively seal the two ends of the filter membrane element.

Optionally, one end of the filter shell is an open end, the other end of the filter shell is a closed end, and the connecting seat is arranged at the open end of the filter shell;

and the waste water discharged by the drain hole and the purified water discharged by the central pipe are discharged through the filter shell.

Optionally, a second waterway conversion piece is sleeved outside the filter element end cover;

a raw water channel for inputting raw water is formed between the second water channel conversion piece and the filter shell;

one end of the second waterway conversion piece, which is far away from the filter element end cover, is connected with the connecting seat.

According to the technical scheme of the utility model, the top cover provided with the drain hole is adopted, so that the waste water generated after the raw water is filtered by the filter membrane element is discharged out of the filter element through the drain hole, the water flow channel of the waste water is prolonged, the problem that the existing filter membrane element is easy to block is further avoided, and the service life of the filter membrane element is prolonged; because the raw water just can filter through the filter membrane component completely, raw water filtration efficiency is high, along with the extension of rivers runner, the waste water volume that produces reduces greatly, improves the problem of a large amount of wastes water that current filter core structure exists.

Drawings

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

Fig. 1 is a schematic view of a filter element end cap according to an embodiment of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic view of the internal structure of the filter element end cap assembly and the filter element in an embodiment of the present invention;

fig. 5 is an exploded view of a filter element end cap assembly and filter element engagement structure according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a filter element end cap assembly with ribs according to an embodiment of the present invention;

FIG. 7 is a bottom view of FIG. 6;

fig. 8 is a schematic structural view of a first waterway conversion member according to an embodiment of the present invention;

fig. 9 is an axial cross-sectional view of a first waterway conversion member according to an embodiment of the present invention;

fig. 10 is a schematic view of an internal structure of a filter element end cap assembly with a first waterway conversion member according to an embodiment of the present invention;

fig. 11 is an exploded view of a filter element end cap assembly with a first waterway conversion member according to an embodiment of the present invention;

fig. 12 is a schematic view of an internal structure of a filter element according to an embodiment of the present invention;

fig. 13 is an exploded view of the filter element of fig. 12;

fig. 14 is a schematic view of an internal structure of a filter element provided with a second water path switching element according to an embodiment of the present invention;

fig. 15 is an exploded view of the filter element of fig. 14.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Filter shell	11	Connecting seat
12	Lower end cap	13	Second waterway conversion piece
				14	Raw water flow passage	20	Central tube
21	Water collecting hole	22	Water purification runner
				30	First waterway conversion piece	31	Water through hole
32	Reinforcing rib	33	Positioning tube
				40	Filter membrane element	50	Filter element end cover
51	Waste water flow passage	52	Center hole
				53	Boss	54	Drain hole
55	Top cover	56	Ribs
				57	Mounting location

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

Detailed Description

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

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

In addition, if there is a description relating to "first", "second", etc. in the embodiments 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 technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic view of a filter element end cover according to an embodiment of the present invention, fig. 2 is a front view of fig. 1, and fig. 3 is a top view of fig. 1; the utility model provides a filter element end cover component, which is used for installing a filter element component, the filter element component is provided with a filter membrane element 40 and a central tube 20, the central tube 20 is provided with a water collecting hole 21, the filter element end cover 50 is in a hollow tube shape, and the filter membrane element 40 is arranged inside the filter element end cover 50; a top cover 55 is arranged at one end of the filter element end cover 50, so that one end of the filter element end cover 50 is closed; the top cover 55 is provided with a central hole 52 in the middle, the central tube 20 is arranged in the central hole 52, and the filter membrane element 40 is arranged around the central tube 20, so that purified water generated after raw water is filtered by the filter membrane element 40 flows into the central tube 20 through the water collecting hole 21; the top cover 55 is provided with a plurality of drainage holes 54, and the wastewater generated by filtering through the filter membrane element 40 is discharged through the drainage holes 54. One end of the filter membrane element 40 is installed inside the cylindrical structure of the filter element end cover 50, so that the filter membrane element 40 can block a raw water path, and when raw water is input into the filter element assembly, the raw water can only continuously flow through the filter membrane element 40.

Referring to fig. 4 and 5, fig. 4 is a schematic diagram illustrating an internal structure of a filter element end cover assembly and a filter element in an embodiment of the present invention, fig. 5 is an exploded view illustrating the filter element end cover assembly and the filter element in an embodiment of the present invention, a raw water flow channel 14 is disposed in the filter element assembly, raw water enters the filter element through the raw water flow channel 14, one end of the filter element 40 abuts against the top cover 55, the filter element 40 is wrapped on the central tube 20, raw water enters the filter element assembly and is filtered along a direction a in fig. 4, when raw water is filtered through the filter element 40, purified water generated by filtering enters the central tube 20 through the water collecting hole 21 on the central tube 20, a purified water flow channel 22 is formed inside the central tube 20, and is output along the central tube 20 along a direction B in fig. 4.

The position of the drain hole 54 on the filter element end cover 50 correspondingly forms a waste water flow passage 51, and in the process of filtering raw water, continuously generated waste water is output through the drain hole 54 on the filter element end cover 50 along the direction C in fig. 4. In the process of filtering the raw water, the raw water must pass through the filter membrane element 40 for filtering, so that the filtering is more sufficient; in the process of outputting the wastewater generated by filtering, the wastewater must be conveyed to the drain hole 54 through the filter membrane element 40, and the whole wastewater flow passage 51 is completely communicated with the filter membrane element 40, so that the flow passage for outputting the wastewater is increased, the inflow flow rate of the end face of the filter membrane element 40 is accelerated, the problem of blocking the filter membrane element 40 can be avoided, and the problems of easy pollution and short service life of the conventional filter membrane element 40 can be improved.

The filter element end cover 50 is provided with the drain hole 54, which may be a counter bore structure sinking to the side of the top cover 55 away from the filter membrane element 40, so that the surfaces of the drain hole 54 and the filter membrane element 40 are staggered with each other, when the wastewater flows out from the filter membrane element 40, the wastewater flows to the drain hole 54, and through the design of the counter bore structure, the width of the wastewater runner 51 is increased, and further the sectional area of the wastewater runner 51 is increased, and under the condition that the wastewater flow is constant, the larger the sectional area of the wastewater runner 51 is, the larger the flow velocity of the wastewater is, and further the flow velocity of the wastewater is faster, which helps to avoid the problem of blockage of the filter membrane element 40, and effectively prolongs the service life of the filter.

Due to the increase of the wastewater channel 51, the generated wastewater can be output only after passing through the filter membrane element 40, so that the water filtration is more sufficient, and the amount of wastewater generated after passing through the filter membrane element 40 can be greatly reduced.

The filter membrane element 40 is wrapped outside the central tube 20, purified water generated after filtration by the filter membrane element 40 enters the central tube 20 through the water collecting holes 21, and because the filter membrane element 40 can be completely wrapped outside the central tube 20, raw water can be input into the filter membrane element 40 from the outside of the filter membrane element 40 in multiple directions, the raw water filtration part is relatively dispersed, and the problem of local blockage of the filter membrane element 40 is not easy to occur.

Because the filter membrane element 40 tip inserts and is being the cavity tube-shape inside the filter core end cover 50, through being the cavity tube-shape the filter membrane end cover blocks that the raw water is direct through being close to top cap 55 one end the filter membrane element 40 flows for the raw water inputs filter core subassembly is inside after, can not direct flow to 50 positions of filter core end cover, raw water process are kept away from 50 one end of filter core end cover the filter membrane element 40 filters, and raw water runner 14 greatly increases, and then has avoided current filter membrane element 40 because the filter membrane element 40 that the raw water input position leads to concentrates the problem of blockking up relatively.

The top cover 55 can limit the installation position of the filter membrane element 40, so as to fix the end of the filter membrane element 40, and meanwhile, since the drain holes 54 are intensively arranged on the top cover 55, after the positions of the drain holes 54 are determined, the installation positions of the drain holes 54 are relatively determined, so that other drainage structures of the filter element assembly can be conveniently arranged, the filter element end cover 50 and the existing filter element assembly can be conveniently matched with each other, and the universality of the filter element end cover assembly is improved.

The drain holes 54 form a specific path of the wastewater channel 51, so that the position from which wastewater flows out is relatively determined, and wastewater cannot flow out of the filter element assembly through other positions, thereby avoiding the problem of relatively short channel caused by the fact that wastewater is output from the edge of the filter element 40 in the conventional filter element structure.

The inner diameter of the central bore 52 is equal to the outer diameter of the center tube 20 so that the center tube 20 can be fixed inside the central bore 52 and the problem of relative misalignment of the center tube 20 is avoided. In the process that the wastewater is output outwards through the drainage hole 54, the wastewater can impact the filter element end cover 50, and the central tube 20 is fixed through the central hole 52, so that unnecessary displacement of the filter element end cover 50 and the central tube 20 can be avoided when the wastewater continuously impacts the filter element end cover 50.

The utility model discloses an adopt and be provided with the filter core end cover 50 of wash port 54, make the waste water that filter membrane element 40 produced only can pass through wash port 54 output makes the waste water runner extension that waste water flows, filter membrane element 40 can not lead to blockking up because the runner is short excessively, and then helps the extension filter membrane element 40's life.

The filter membrane element 40 may be an existing RO membrane (Reverse Osmosis membrane), the filter membrane element 40 may be wound around the outside of the central tube 20, and raw water may be filtered through the filter membrane element 40; the membrane element 40 may be provided in a plurality of modules, and the modules are combined in an array outside the central tube 20, so that raw water is filtered by the membrane element 40 and then enters the inside of the central tube 20 through the water collecting holes 21.

Referring to fig. 1, in an embodiment of the present invention, a boss 53 is disposed on the top cover 55; the drain hole 54 is a through hole provided in the boss 53. By arranging the boss 53, the drain hole 54 can be conveniently positioned, and when the filter element end cover 50 is matched with other filter element assemblies, the filter element end cover 50 can be conveniently and quickly positioned, so that the universality of the filter element end cover 50 is improved.

When the filter membrane element 40 is installed, in order to position the filter membrane element 40 conveniently, colloid is arranged on the end surface of one side, facing the top cover 55, of the filter membrane element 40, so that the colloid seals the contact surface of the filter membrane element 40 and the top cover 55, the part of the boss 53 is not coated with the colloid in the process of gluing the contact surface, the boss 53 limits a gluing area, and the problem that the colloid enters the drain hole 54 to cause blockage in the gluing process is solved. To facilitate matching with other structures of the filter cartridge assembly and positioning of the center tube 20, the design position of the boss 53 can be determined according to the specific shape of the filter cartridge end cap 50.

In order to avoid the problem that the drainage holes 54 are too concentrated to cause partial blockage of the filter membrane elements 40, the boss 53 is optionally annularly wrapped around the edge of the central hole 52; the drainage holes 54 are uniformly distributed on the boss 53 along the circumferential direction of the boss 53. The drainage holes 54 are through holes uniformly distributed on the boss 53, and two ends of the drainage holes 54 are respectively communicated with the inner side and the outer side of the top cover 55, so that the wastewater flows from one side of the filter membrane element 40 to the outer side of the top cover 55.

Because boss 53 is located the centre bore 52 edge, will filter core end cover 50 is installed when the filter element subassembly is gone up, it is right to be convenient filter core end cover 50 with the exterior structure of filter element subassembly is fixed a position fast. Because the drain holes 54 are uniformly distributed, a plurality of uniformly distributed waste water flow passages 51 can be formed at the positions of the drain holes 54, and the problem that the filter element end cover 50 is easily damaged due to impact caused by too concentrated waste water output positions can be further avoided.

Referring to fig. 6 and 7, fig. 6 is a schematic structural view of a filter element end cap assembly with ribs according to an embodiment of the present invention, fig. 7 is a bottom view of fig. 6, and in an embodiment of the present invention, the top cap 55 has ribs 56 towards an end surface of the filter membrane element 40; the ribs 56 are arranged on the top cover 55 in an annular array by taking the center of the center hole 52 as the center, and an installation position 57 for positioning the filter membrane element 40 is formed between the adjacent ribs 56; the drainage hole 54 corresponds to the mounting location 57, and one end of the filter membrane element 40 close to the top cover 55 is arranged in the mounting location 57, so that the wastewater filtered by the filter membrane element 40 is drained through the drainage hole 54. The ends of the filter membrane elements 40 are arranged in the mounting locations 57, wherein the mounting locations 57 are capable of positioning the filter membrane elements 40.

When the contact surface between the filter membrane element 40 and the top cover 55 is glued, the glue does not flow to the position of the drain hole 54 due to the limitation of the ribs 56 and the bosses 53, and the problem of blockage of the drain hole 54 can be avoided.

To facilitate installation of the filter membrane elements 40, in one embodiment of the present invention, a plurality of sets of the filter membrane elements 40 are disposed in the filter cartridge end cap 50; the filter membrane elements 40 are arranged in an annular array by taking the center of the center hole 52 as the center; the filter membrane element 40 is glued towards the end of the cover 55 in the corresponding mounting location 57. The filter membrane elements 40 are assembled outside the central tube 20 in an array, and when installed, each filter membrane element 40 is positioned through the installation location 57 toward the end of the top cover 55.

The water collecting holes 21 provided on the central tube 20 correspond to the positions of the filter elements 40, so that raw water can be filtered only through the filter elements 40, and the purified water filtered through the filter elements 40 can enter the interior of the central tube 20 only through the water collecting holes 21 corresponding to the positions of the filter elements 40.

By adopting a mode of combining a plurality of groups of filter membrane elements 40 in an array manner, the filter membrane elements 40 and the installation position 57 can be conveniently positioned with each other, so that the filter membrane elements 40 can be conveniently installed; since the filter membrane elements 40 can be individually installed, when a single filter membrane element 40 needs to be replaced, the filter membrane element 40 can be replaced and installed, and the maintenance cost of the filter membrane element 40 can be reduced.

Referring to fig. 8 and 9, fig. 8 is a schematic structural view of a first water path conversion member in an embodiment of the present invention, fig. 9 is a schematic axial cross-sectional view of the first water path conversion member in an embodiment of the present invention, when wastewater flows out through the wastewater channel 51, the wastewater may impact the filter element end cap 50, in order to prevent the filter element end cap 50 from being damaged by the wastewater, in an embodiment of the present invention, one end of the central tube 20 extends out of the top cap 55 and deviates from one side of the filter membrane element 40, and the central tube 20 is provided with a first water path conversion member 30; the first waterway conversion member 30 is sleeved on the outer wall of the central tube 20, and the first waterway conversion member 30 abuts against one side of the top cover 55, which is far away from the filter membrane element 40; the first water passage switching member 30 is provided with a water through hole 31 corresponding to the position of the water discharge hole 54. The first waterway switcher 30 may be fixed to the outer housing of the cartridge assembly, while the first waterway switcher 30 is coupled to the center tube 20.

When the waste water is discharged through the drain hole 54, the first waterway conversion member 30 is pressed against the top cover 55 under the action of the first waterway conversion member 30, so as to prevent the top cover 55 from being deformed or damaged under the impact of the waste water.

First water route conversion member 30 is close to top cap 55 one end can threaded connection be in on the center tube 20, will filter core end cover 50 is installed when on the filter element group spare, can be directly with first water route conversion member 30 is installed on the filter element group spare, and then can conveniently realize filter core end cover 50 with the cooperation of filter element group spare, it is convenient filter core end cover 50 and difference filter element group spare is mutually supported, in order to improve filter core end cover 50's commonality.

The aperture of the water through hole 31 may be relatively larger than the aperture of the water discharge hole 54, or may be set as required, so that the wastewater output through the water discharge hole 54 can be output into the wastewater channel 51 through the water through hole 31, and the water through hole 31 may serve as an extension of the wastewater channel 51, thereby realizing the output of the wastewater.

Since the waste water may impact the top cover 55, in order to improve the stability of the first waterway conversion member 30, in an embodiment of the present invention, a reinforcing rib 32 may be disposed on the first waterway conversion member 30, and the reinforcing rib 32 is used to support a surface of the top cover 55 against which the first waterway conversion member 30 abuts, so as to improve the deformation resistance of the first waterway conversion member 30.

Referring to fig. 9, 10 and 11, fig. 10 is a schematic view of an internal structure of a filter element end cover assembly provided with a first waterway conversion member according to an embodiment of the present invention, fig. 11 is an exploded view of a filter element end cover assembly provided with a first waterway conversion member according to an embodiment of the present invention, in an embodiment of the present invention, a positioning pipe 33 is disposed inside the first waterway conversion member 30; the positioning tube 33 is coaxial with the central tube 20, and the positioning tube 33 is inserted into the inner side of the central tube 20, so that the purified water in the central tube 20 is discharged through the positioning tube 33. After the first waterway conversion member 30 is installed in the central tube 20, the positioning tube 33 is inserted into the central tube 20, and at this time, the positioning tube 33 and the central tube 20 are matched with each other, so that the purified water flow passage 22 can continue to extend in the positioning tube 33.

After the first waterway conversion member 30 and the filter element assembly are mounted to each other, the positioning pipe 33 can realize the mutual positioning of the first waterway conversion member 30 and the central pipe 20 from the inside, thereby helping to improve the mounting stability of the first waterway conversion member 30 and the central pipe 20, and by stably mounting the first waterway conversion member 30 on the central pipe 20, the first waterway conversion member 30 can generate a stable supporting effect on the top cover 55, thereby helping to prevent the top cover 55 from deforming.

The utility model discloses on the basis of above-mentioned filter core end cover subassembly, provide an embodiment of filter core.

Referring to fig. 12 and 13, fig. 12 is a schematic view of a filter element according to an embodiment of the present invention, fig. 13 is an exploded view of the filter element of fig. 12, wherein the filter element includes a filter housing 10, a connecting seat 11, a lower end cap 12 disposed inside the filter housing 10, and the filter element end cap assembly; the connecting seat 11 is arranged at one end of the filter shell 10; the filter element end cover 50 is arranged at one end of the filter shell 10 close to the connecting seat 11; the lower end cap 12 and the filter element end cap 50 are respectively aligned to two ends of the filter membrane element 40, so that the filter element end cap 50 and the lower end cap 12 respectively seal two ends of the filter membrane element 40.

The filter housing 10 and the adapter 11 form an interior filter space of the filter cartridge in which the filter cartridge end cap assembly is installed such that the filter membrane element 40 is installed inside the filter housing 10.

Raw water enters the interior of the filter housing 10 through the raw water flow passage 14, the raw water is filtered by the filter membrane element 40, the produced purified water enters the purified water flow passage 22 through the water collecting hole 21 of the central tube 20, and the produced wastewater enters the wastewater flow passage 51 through the water discharging hole 54.

Since the raw water can be filtered only through the filter membrane element 40, the waste water generated inside the filter element can be transported to the outside of the filter element only through the drain hole 54, so that the amount of waste water generated by the filter element is greatly reduced.

In the process of outputting the wastewater, the wastewater must pass through the filter membrane element 40 and be conveyed to the drain hole 54, so that the flow path of the wastewater in the filter membrane element 40 is relatively prolonged, thereby reducing the problem that the filter membrane element 40 is blocked by the wastewater, improving the blocking problem of the filter membrane element 40, improving the flow velocity of the water in the filter membrane element 40, avoiding the pollution of the filter membrane element 40, and further being beneficial to prolonging the service life of the filter membrane element 40.

The filter shell 10 may have a cylindrical structure, and a cylindrical structure is formed corresponding to the filter membrane element 40, the output ends of the raw water channel 14 and the wastewater channel 51 may be disposed on the connection seat 11, and the connection seat 11 may have a structure provided with a plurality of output pipelines, which is not described in detail.

The input port of the raw water channel 14 may be disposed on the connecting seat 11, or may be disposed at an end of the filter housing 10 far from the connecting seat 11.

In an embodiment of the present invention, one end of the filter housing 10 is an open end, and the other end is a closed end, and the connecting seat 11 is disposed at the open end of the filter housing 10; the waste water discharged from the drain hole 54 and the clean water discharged from the central pipe 20 are discharged through the filter housing 10. Strain shell 10 one end and seal, strain the shell 10 other end and pass through the joint chair 11 seals for clean water and waste water all can only pass through the output of joint chair 11 one end, it is convenient the pipeline design of filter core.

At this moment, the filter element end cover 50 can be quickly matched with the connecting seat 11 and the filter shell 10 in a mutually positioning mode, and when the filter element end cover 50 is installed, the filter element end cover 50 can be connected with the connecting seat 11, so that the filter element end cover 50 can be suitable for different filter shells 10 and is convenient to communicate with other filter elements of other models.

Referring to fig. 14 and 15, fig. 14 is a schematic view of an internal structure of a filter element provided with a second water path switching element according to an embodiment of the present invention, fig. 15 is an exploded view of the filter element of fig. 14, and in order to facilitate the pipeline design of the filter element, in an embodiment of the present invention, a second water path switching element 13 is sleeved outside the end cover 50 of the filter element; a raw water channel 14 for inputting raw water is formed between the second water path switching piece 13 and the filter shell 10; the end of the second waterway conversion member 13 away from the filter element end cover 50 is connected to the connecting seat 11. At this time, the pipelines for raw water, purified water and waste water are all arranged on one side of the joint 11.

Raw water is input into the raw water flow passage 14 formed between the second water path switching element 13 and the filter shell 10 through the joint 11 and flows in, a channel for continuous raw water flow is formed between the filter membrane element 40 and the filter shell 10 as an extension of the raw water flow passage 14, and the filter membrane element 40 generates certain resistance to the raw water, so that the raw water can flow to one end far away from the joint 11 along the raw water flow passage 14, at this time, the relative position of the raw water input into the filter membrane element 40 along the direction a in fig. 12 and 14 is relatively dispersed, and the water inlet end face of the raw water is enlarged, which is helpful for avoiding the problem of blockage of the filter membrane element 40; moreover, the flow passage of the raw water in the filter membrane element 40 is relatively prolonged, so that the filter membrane element 40 is further prevented from being blocked, and the purification efficiency of the raw water by the filter membrane element 40 is relatively improved; because the raw water is gradually input into the filter membrane element 40, the raw water cannot directly impact the filter membrane element 40 close to the side of the drain hole 54 under the limitation of the filter element end cover 50, thereby being beneficial to reducing the amount of the waste water generated by the filter membrane element 40 and improving the utilization rate of the raw water.

As the wastewater can only flow to the position of the drainage hole 54 along the direction C as shown in fig. 12 and 14, the wastewater channel 51 is also extended, thereby preventing the filter membrane element 40 from being blocked at the position close to the drainage hole 54; the purified water generated by filtering can only flow to the direction of the connecting seat 11 along the direction B as shown in fig. 10 and 11, so that the design of a purified water output pipeline is facilitated.

The lower end cap 12 is used to position the end of the filter membrane element 40 remote from the filter element end cap 50 to maintain the filter membrane element 40 in a stable condition.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. A filter element end cover assembly is used for installing a filter element assembly, the filter element assembly is provided with a filter membrane element and a central pipe, and the central pipe is provided with a water collecting hole;

a top cover is arranged at one end of the filter element end cover so as to seal one end of the filter element end cover;

the middle part of the top cover is provided with a central hole, the central tube is arranged in the central hole, and the filter membrane element is arranged around the central tube, so that purified water generated after raw water is filtered by the filter membrane element flows into the central tube through the water collecting hole;

the top cover is provided with a plurality of drain holes, and wastewater generated by filtering through the filter membrane element is drained through the drain holes.

2. The filter element end cap assembly of claim 1, wherein the top cap defines a boss;

the drain hole is a through hole arranged on the boss.

3. The filter element end cap assembly of claim 2, wherein the boss annularly surrounds the central aperture edge;

the drain holes are uniformly distributed on the boss along the circumferential direction of the boss.

4. The filter element end cap assembly of claim 3 wherein said top cap has ribs on a side facing said filter membrane element;

the ribs are arranged on the top cover in an annular array by taking the center of the center hole as the center, and an installation position for positioning the filter membrane element is formed between every two adjacent ribs;

the drain hole corresponds to the mounting region, and one end of the filter membrane element, which is close to the top cover, is arranged in the mounting region, so that waste water generated by filtering through the filter membrane element is drained through the drain hole.

5. The filter element end cap assembly of claim 4 wherein a plurality of sets of said filter membrane elements are provided in said filter element end cap;

the filter membrane elements are arranged in an annular array by taking the center of the center hole as the center;

and one end of the filter membrane element, which faces the top cover, is adhered to the corresponding mounting area through glue.

6. The filter element end cap assembly of claim 1 wherein one end of said center tube extends outwardly of a side of said top cap facing away from said filter membrane element, said center tube having a first waterway conversion member thereon;

the first waterway conversion piece is sleeved on the outer wall of the central pipe and abuts against one side, away from the filter membrane element, of the top cover;

and the first waterway conversion piece is provided with a water passing hole corresponding to the position of the water discharging hole.

7. The filter cartridge end cap assembly of claim 6, wherein the first waterway conversion member has a positioning tube disposed therein;

the positioning pipe is coaxial with the central pipe, and the positioning pipe is inserted into the inner side of the central pipe so that purified water in the central pipe is discharged through the positioning pipe.

8. A filter cartridge comprising a filter housing, a receptacle, a lower end cap disposed within the filter housing, and a filter cartridge end cap assembly according to any one of claims 1-7;

the connecting seat is arranged at one end of the filter shell;

the filter element end cover is arranged at one end of the filter shell close to the connecting seat;

the lower end cover and the filter element end cover are respectively arranged at two ends of the filter membrane element in an aligned mode, so that the filter element end cover and the lower end cover respectively seal the two ends of the filter membrane element.

9. The filter cartridge of claim 8, wherein the filter housing has an open end at one end and a closed end at the other end, and wherein the adapter is disposed at the open end of the filter housing;

and the waste water discharged by the drain hole and the purified water discharged by the central pipe are discharged through the filter shell.

10. The filter element of claim 9, wherein a second waterway conversion member is sleeved outside the filter element end cover;

a raw water channel for inputting raw water is formed between the second water channel conversion piece and the filter shell;

one end of the second waterway conversion piece, which is far away from the filter element end cover, is connected with the connecting seat.

Images