CN103349858A - Filtering device used for water purifying equipment - Google Patents

Abstract

The invention provides a filtering device used for water purifying equipment. The filtering device comprises a housing and a metal filtering gauze, wherein the housing comprises a first housing and a second housing which are mutually connected, the first housing is hermetically connected with the second housing, the housing comprises at least one water inlet and at least one water outlet, the metal filtering gauze is nested in the inner chamber of the housing, and the metal filtering gauze is a sintered screen or a sintered felt. In the filtering device used for the water purifying equipment, as the metal filtering gauze with higher density is adopted, the filtering effect of the filtering device is increased by more than 3 times when compared with that of the PP cotton filter element or other prefixed filtering devices; meanwhile the service lives of other filter elements of water purifying equipment are greatly prolonged; different metal filtering gauzes with different materials, thicknesses and densities are adopted according to different water quality, so that the water quality is ensured after filtering; the filtering device used for the water purifying equipment has a simple structure, is convenient to use, has reduced replacement frequency of the filter elements, enables the cost to be reduced and brings convenience for consumers.

Description

The filter that is used for purifier

Technical field

The present invention relates to the purifier technical field, be specifically related to a kind of filter for purifier.

Background technology

At present, the purifier commonly used scavenging material that adopts in market is the cotton filter core of PP, active carbon filter core, ultra-filtration element, active carbon filter core; Or adopt the cotton filter core of PP, active carbon filter core, RO membrane cartridge, active carbon filter core, in above two schemes, the cotton filter core of PP is pre-filtering device, its Main Function is except the impurity in anhydrating, but the service life of the cotton filter core of existing PP is short, and in use stops up easily.Generally speaking, just needed to change a filter core in average family 3-6 month, both inconvenient, increased again maintenance cost, such as untimely replacing, affect the filter effect of drinking water, brought healthy hidden danger to the user.

Thereby, design a kind of good filtration effect, neither can stop up and often do not need the more filter of renew cartridge, be the R﹠D direction of all purifier manufacturers always.

Summary of the invention

The present invention is intended to overcome the deficiencies in the prior art, provides that a kind of strainability is good, simple in structure, the filter that is used for purifier of long service life.

Technical scheme of the present invention is achieved in that

A kind of filter for purifier, it comprises housing and metal screen, described housing comprises interconnective the first housing and the second housing, described the first housing is connected with described the second housing seal, described housing comprises at least one water inlet and at least one delivery port, and described metal screen is embedded in the inner chamber of described housing.

Preferably, an end of described housing is provided with a water inlet, and its other end is provided with a delivery port, and described metal screen vertically is embedded in the inner chamber of described housing, and the cross sectional shape of the shape of described metal screen and described housing inner chamber is complementary.

Preferably, the two ends of described housing respectively are provided with a water inlet, vertically be embedded with two described metal screens in the inner chamber of described housing, be provided with certain distance between the two described metal screens, the bottom of described housing and between two described metal screens, be provided with delivery port.

Preferably, the sintered meshwork of described metal screen for being formed by multilevel-cell filter screen sintering, the precision of described sintered meshwork is 8 μ m-0.01 μ m.

Preferably, described metal screen is formed by 2 to 12 layers of unit filter screen sintering.

Preferably, described metal screen is that the precision of described sintering felt is 5 μ m-1 μ m by metal dust or the metallic fiber sintered sintering felt that forms.

Preferably, described the first housing is provided with the concave station rank with the end that described the second housing links to each other, described the second housing is provided with the boss rank with the end that described the first housing is connected, the inner surface on described concave station rank is provided with internal thread, the outer surface on described boss rank is provided with external screw thread, and described internal thread and described external screw thread are sealed and matched.

Preferably, described the first housing and described the second housing junction are provided with sealing strip.

Preferably, described the first housing and described the second housing glued joint or are welded to connect, and described the first housing is connected with described the second housing seal.

Preferably, described metal screen adopts stainless steel or copper product to make.

Than prior art, beneficial effect of the present invention is: the filter for purifier of the present invention, adopt the higher metal screen of density, filter effect improves more than 3 times than the cotton filter core of PP or other pre-filtering device effects, prolonged greatly simultaneously the service life of other filter cores of purifier, can also adopt according to different quality the metal screen of unlike material, thickness and density, the quality of the water after guaranteeing to filter; Filter for purifier of the present invention, simple in structure, easy to use, reduced the replacing number of times of filter core, reduced cost, for the consumer provides convenience.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the cross section structure schematic diagram of a kind of filter for purifier of the present invention;

Fig. 2 is the side structure schematic diagram that is used for the filter of purifier among Fig. 1;

Fig. 3 is the another kind of cross section structure schematic diagram that is used for the filter of purifier of the present invention;

Fig. 4 is another cross section structure schematic diagram for the filter of purifier of the present invention.

The specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.

As shown in Figure 1 and Figure 2, a kind of filter for purifier of the present invention, can be described as " do not need change filter core ", also can be described as " forever nonclogging filter core ", it compriseshousing 1 and metal screen, andhousing 1 comprises thefirst housing 11 and thesecond housing 12 that mutually is tightly connected, and housing comprises awater inlet 13 and adelivery port 14, metal screen vertically is embedded in the inner chamber ofhousing 1, and the cross sectional shape of the shape of metal screen and housing inner chamber is complementary.

In the present invention, thesintered meshwork 2 of metal screen for being formed by multilevel-cell filter screen sintering, in order to guarantee the quality of filtered water, the precision of sintered meshwork is 8 μ m-0.01 μ m, sinteredmeshwork 2 is comprised of 2 to 12 layers of unit filter screen.Preferably, this sintered meshwork is comprised of 5 layers of unit filter screen, and the precision of sintered meshwork is 1 μ m, 2 μ m or 3 μ m.In the present invention, the precision of the unit filter screen of close water inlet side is less than the precision of delivery port side unit filter screen, when running water enters in the purifier by water inlet, oarse-grained impurity and heavy metal molecule are at first filtered by the unit filter screen of influent side, and then short grained impurity and heavy metal molecule are successively by other unit strainer filterings.

In the present invention, thefirst housing 11 is provided withconcave station rank 111 with the end that thesecond housing 12 links to each other, thesecond housing 12 is provided withboss rank 121 with the end that thefirst housing 11 is connected, the inner surface on concave station rank is provided with internal thread, the outer surface on boss rank is provided with external screw thread, internal thread and external screw thread are sealed and matched, so that thefirst housing 11 and thesecond housing 12 are tightly connected.In order better to reach goal of the invention of the present invention, thefirst housing 11 and thesecond housing 12 junctions further are provided withsealing strip 3.

As shown in Figure 3, the filter that is used for purifier for another kind of the present invention, it compriseshousing 4 and is embedded atsintered meshwork 2 in thishousing 4,housing 4 has thefirst housing 41 and thesecond housing 42 to consist of, 43 places that are connected between thefirst housing 41 and thesecond housing 42 adopt welded seal to connect, and can reach goal of the invention of the present invention equally.In addition, can also adopt between the first housing and the second housing to glued joint and be connected or connected mode that other can link together the two secure seal connects.

As shown in Figure 4, be another filter for purifier of the present invention, it comprises the housing 5 that is comprised of the first housing 51 and the second housing 52, the two ends of housing 5 respectively are provided with a water inlet 53, vertically be embedded with twosintered meshworks 2 in the inner chamber of housing, these twosintered meshworks 2 are formed by multilevel-cell filter screen sintering, and are provided with certain distance between these twosintered meshworks 2, in the bottom of housing 5 and be provided with delivery port 54 between two sinteredmeshworks 2.

In the present invention, metal screen can also be for by metal dust or the metallic fiber sintered sintering felt that forms, and the precision of sintering felt is 5 μ m-1 μ m, and preferred, the precision of sintering felt is 5 μ m.Sintered meshwork or sintering felt adopt 304 stainless steels, 316L stainless steel or copper product or other metal materials that meets the food contact material standard to make, and the first housing and the second housing adopt plastic material injection molded.

The present invention has got respectively three kinds of different stainless steel sintered meshworks and a kind of sintering felt is tested, and test result meets the requirements fully, and test result is as follows:

In the present invention, if adopting 5 layers of filtering accuracy is that the sintered meshwork of 1 μ m, 2 μ m or 5 μ m is for the filtration of running water, especially adopt the sintered meshwork of 1 μ m to filter, impurity and heavy metal below the 1 μ m can be filtered out, this is than at present on the market more than the high twice of filter effect of the pre-filtering device of all purifiers.Further, can also adopt filtering accuracy is the sintering felt of 5 μ m.And, can also utilize more high-precision sintered meshwork or sintering felt to filter, as long as impose suitable pressure, filter effect can be set as required, this will improve the quality of drinking water significantly, reduce the replacement cost of the filter core of purifier.

Filter for purifier of the present invention is directly made filter with sintered meshwork and is installed on the running water pipe, carries out preposition filtration thereby replace traditional PP cotton filter core or other filter core, and cooperates the RO film filter; In addition, can also sintered meshwork filter, RO film filter and active carbon filtering device be carried out any combination filter according to the water quality situation, as:

1, sintered meshwork filter, the combination of RO film filter;

2, sintered meshwork filter, active carbon filtering device combination;

3, sintered meshwork filter, active carbon filtering device, the combination of RO film filter;

4, sintered meshwork filter, RO film filter, active carbon filtering device combination;

5, sintered meshwork filter, active carbon filtering device, RO film filter, active carbon filtering device combination.

Further, the filter for purifier of the present invention carries out the preposition filtration of running water with metal screen.In the use procedure, be respectively equipped with triple valve and calutron on water inlet and the delivery port, water intaking valve in the Water treatment on the water inlet and the outlet valve on the delivery port are opened, and running water enters purifier and filters to flow out by delivery port through sintered meshwork or sintering felt and drinks.When filtering device after work a period of time, water intaking valve, outlet valve is closed, cleaning water intaking valve on the delivery port and the cleaning outlet valve on the water inlet are opened, rinse water is carried out back flush sintered meshwork or sintering felt from water outlet end with uniform pressure, rinse water flows out from water inlet, to reach the purpose of reverse cleaning metal screen, cleaning in the other direction can be after each water intaking, set the scavenging period self-cleaning according to water withdrawal, cleaning process only was tens seconds, water purification after the rinse water employing is filtered or running water clean and get final product, utilize the impurity on the principle cleaning sintered meshwork that washes residual in the other direction, reach the purpose of permanent use, greatly reduce production cost, the user does not often need more that renew cartridge can reach good production effect.

In the present invention, can also adopt fixed time cleaning, at equipment button is set, the control cleaning function is set cleaning frequency according to different quality.

The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the filter that is used for purifier, it is characterized in that, it comprises housing and metal screen, described housing comprises interconnective the first housing and the second housing, described the first housing is connected with described the second housing seal, described housing comprises at least one water inlet and at least one delivery port, and described metal screen is embedded in the inner chamber of described housing.

2. the filter for purifier according to claim 1, it is characterized in that, one end of described housing is provided with a water inlet, its other end is provided with a delivery port, described metal screen vertically is embedded in the inner chamber of described housing, and the cross sectional shape of the shape of described metal screen and described housing inner chamber is complementary.

3. the filter for purifier according to claim 1, it is characterized in that, the two ends of described housing respectively are provided with a water inlet, vertically be embedded with two described metal screens in the inner chamber of described housing, be provided with certain distance between the two described metal screens, the bottom of described housing and between two described metal screens, be provided with delivery port.

4. each described filter for purifier is characterized in that according to claim 1-3, the sintered meshwork of described metal screen for being formed by multilevel-cell filter screen sintering, and the precision of described sintered meshwork is 8 μ m-0.01 μ m.

5. the filter for purifier according to claim 4 is characterized in that, described metal screen is formed by 2 to 12 layers of unit filter screen sintering.

6. each described filter for purifier is characterized in that according to claim 1-3, and described metal screen is that the precision of described sintering felt is 5 μ m-1 μ m by metal dust or the metallic fiber sintered sintering felt that forms.

7. the filter for purifier according to claim 1, it is characterized in that, described the first housing is provided with the concave station rank with the end that described the second housing links to each other, described the second housing is provided with the boss rank with the end that described the first housing is connected, the inner surface on described concave station rank is provided with internal thread, the outer surface on described boss rank is provided with external screw thread, and described internal thread and described external screw thread are sealed and matched.

8. the filter for purifier according to claim 7 is characterized in that, described the first housing and described the second housing junction are provided with sealing strip.

9. the filter for purifier according to claim 1 is characterized in that, described the first housing and described the second housing glued joint or be welded to connect, and described the first housing is connected with described the second housing seal.

10. the filter for purifier according to claim 1 is characterized in that, described metal screen adopts stainless steel or copper product to make.

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