CN209865444U - Can be from leading filter who washes - Google Patents

Abstract

This paper discloses a can be from leading filter who washes, including filter core joint chair and the main part that meets from top to bottom, the main part includes filter element group spare, the filter core joint chair is provided with water purification mouth of a river and raw water mouth, by in the main part filter element group spare divide with raw water passageway of raw water mouth intercommunication and with the water purification passageway of water purification mouth intercommunication, but be provided with open closed washing mouth on the filter core joint chair, be provided with in the main part and wash the passageway, wash the passageway one end with wash a mouthful intercommunication for the discharge washes the water of filter element group spare. This paper relates to the filter field, provides a can be from leading filter who washes, can solve the problem of wasing the difficulty, and the rivers in it can be utilized wash the filter element group spare, avoid manual abluent trouble to wash the mouth setting on the filter core joint chair, make rivers business turn over all integrate on the filter core joint chair, simplified the structure.

Description

Can be from leading filter who washes

Technical Field

The present disclosure relates to the field of filters, and more particularly to a self-cleaning prefilter.

Background

In recent years, water purifiers have been popularized due to abnormal fire explosion in the water purification market, and become the most potential products in the field of household appliances. Meanwhile, the upgrading rhythm of the product is accelerated, and the industry technology is continuously promoted. In addition, because the filter element on the water purifier belongs to consumables, the filter element needs to be replaced after being used for a period of time, and the service life of the filter element and the cost of replacing the filter element become the common pain points of consumers and manufacturers. In order to prolong the service life of the filter element of the water purifier, a pre-filter (namely a filter of a stainless steel net) can be added at the front end of the water purifier, thereby effectively solving the problems.

However, the problem of cleaning the pre-filter is also annoying to the user. When the filter screen of the front filter is washed, only a user can manually wash the filter screen, the filter screen is very troublesome, most users rarely wash the filter screen, and then the front filter is blocked, so that the household water is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can be from leading filter who washes can solve the problem of wasing the difficulty, and the rivers in its usable wash the filter element group spare, avoid manual abluent trouble to wash the mouth setting on the filter core joint chair, make the rivers business turn over all integrated on the filter core joint chair, simplified the structure.

In order to achieve the purpose of the invention, the utility model provides a can be from leading filter that washes, including filter core joint chair and the main part that meets from top to bottom, the main part includes filter element group spare, filter core joint chair is provided with water purification mouth and raw water mouth, by in the main part by filter element group spare divide with raw water channel and with the water purification passageway of water purification mouth intercommunication, be provided with the washing mouth that can open and close on the filter core joint chair, be provided with the washing passageway in the main part, the one end of washing passageway with the washing mouth intercommunication is used for discharging the water that washes the filter element group spare.

A possible design, be provided with the center tube in the main part, the center tube runs through from top to bottom the filter element subassembly and with the filter element joint chair meets, constitutes the washing passageway.

One possible design, the filter element assembly includes a support cylinder and a filter screen arranged outside the support cylinder, the bottom of the support cylinder is sealed and provided with a fixing hole, the central tube runs through the fixing hole, and a first sealing ring is arranged between the fixing holes.

In one possible design, a connecting pipe extending upwards is arranged at the top of the supporting cylinder, the connecting pipe is connected with the filter element connecting seat in a sealing mode, and the central pipe penetrates through the connecting pipe.

According to a possible design, a cavity with an opening at the lower end is arranged at the bottom of the filter element connecting seat, the water purifying port and the flushing port are respectively communicated with the cavity, the connecting pipe is in sealing connection with the cavity, and the upper end of the central pipe penetrates through the cavity and is in sealing connection with the flushing port.

In one possible embodiment, a plurality of guide ribs are arranged between the connecting tube and the central tube to prevent the central tube from tilting.

One possible design, the main body includes a filter flask, the filter element assembly is disposed in the filter flask, the bottom of the filter element assembly with be provided with the location muscle between the filter flask.

One possible design is that the supporting cylinder comprises a cylinder body and an upper end cover arranged at the top of the cylinder body, the connecting pipe is arranged on the upper end cover, and a second sealing ring is arranged between the cylinder body and the upper end cover.

In one possible embodiment, the cross-section of the chamber is circular and is arranged concentrically with the connecting tube.

In one possible embodiment, the flushing opening is provided with a solenoid valve for opening and closing the flushing opening.

Compared with the prior art, the utility model discloses a leading filter's beneficial effect as follows:

1. this leading filter can utilize rivers in it to wash filter element group spare, avoids manual abluent trouble to wash the mouth setting on the filter core joint chair, make rivers business turn over all integrated on the filter core joint chair, simplified the structure.

2. The center tube runs through the lower extreme of a support section of thick bamboo and sets up sealedly, prevents to enter into the center tube through filterable water.

3. A plurality of guide ribs are arranged between the connecting pipe and the central pipe, so that the central pipe is vertical, the central pipe is prevented from inclining, and the sealing of two ends of the central pipe is ensured.

4. Be provided with the location muscle between the bottom of filter element group spare and the filter flask, this filter element group spare of location guarantees assembly stability.

5. The flushing port is provided with an electromagnetic valve for controlling automatic opening and closing of the flushing port, so that the purpose of cleaning at regular time can be achieved, manual operation is avoided, and convenience is brought to users.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

FIG. 1 is a schematic cross-sectional view of a prefilter of one embodiment of the present invention;

FIG. 2 is a schematic exploded view of a prefilter according to a first embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is an enlarged view of a portion of FIG. 1 at C;

FIG. 5 is an enlarged view of a portion of FIG. 1 at A;

FIG. 6 is an enlarged view of a portion of FIG. 1 at D;

FIG. 7 is a schematic diagram of the pre-filter filtering state according to the first embodiment;

FIG. 8 is a schematic view showing a pre-filter flushing state according to the first embodiment;

FIG. 9 is a schematic exploded view of a prefilter according to a second embodiment;

FIG. 10 is a schematic cross-sectional view of a prefilter of a second embodiment;

FIG. 11 is a schematic sectional view of a prefilter of a third embodiment;

FIG. 12 is an enlarged view of a portion of FIG. 11 at E;

FIG. 13 is a schematic cross-sectional view of a prefilter of a fourth embodiment.

Reference numerals: 1-filter element connecting seat, 2-main body, 3-filter element component, 4-raw water channel, 5-purified water channel, 6-flushing channel, 7-raw water port, 8-purified water port, 9-flushing port, 10-filter flask upper cover, 11-filter flask, 12-positioning rib, 13-central tube, 14-supporting cylinder, 15-filter screen, 16-upper cover, 17-connecting tube, 18-third sealing ring, 19-second sealing ring, 20-fourth sealing ring, 21-cylinder, 22-external thread, 23-first sealing ring, 24-fixing hole, 25-positioning projection, 26-limiting ring, 27-cavity, 28-fifth sealing ring, 29-annular groove, 30-sixth sealing ring, 31-buckle projection, 32-buckling position and 33-guiding rib.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Example one

Please refer to fig. 1 and 8, which illustrate a first embodiment of a prefilter according to the present invention. As shown in fig. 1, the pre-filter comprises a filter element connecting seat 1 and a main body 2 which are arranged up and down and are in threaded connection, wherein the main body 2 comprises a filter element assembly therein, the filter element connecting seat 1 is provided with a water purifying port 8 and a raw water port 7, and the water purifying port 8 and the raw water port 7 are respectively communicated with the inside and the outside of the pre-filter. In addition, a raw water channel 4 communicated with a raw water port 7 and a water purification channel 5 communicated with a water purification port 8 are separated by the filter element assembly 3 in the main body 2, the raw water channel 4 is arranged at the periphery of the filter element assembly 3, and the water purification channel 5 is arranged in the filter element assembly 3. Particularly, this filter core connects and is provided with openable and closable washing mouth 9 on the seat 1, and is provided with in the main part 2 and washes passageway 6, should wash the one end of passageway 6 with wash mouthful 9 intercommunication, the other end extends filter element group spare 3 bottom for the water that the drainage washed filter element group spare 3. From this, this leading filter can be by raw water mouth 7 intaking and discharge by washing mouth 9 after scouring away filter element group spare 3, reach the self-cleaning mesh, avoid manual abluent trouble, wash a 9 setting on filter core joint chair 1 moreover for rivers business turn over all be integrated on filter core joint chair 1, simplified the structure, convenient production and use.

Specifically, as shown in fig. 1 and 2, the main body 2 includes a filter bottle 11 and a filter element assembly 3 disposed therein, and the upper end of the filter bottle 11 is open and a filter bottle cap 10 for covering the filter bottle is disposed, and the lower end of the filter bottle cap 10 is welded to the filter bottle 11 by a spin-melt process and ensures sealing of the junction. The upper end of the filter flask upper cover 10 is provided with an external thread 22, and correspondingly, the lower end of the filter element joint seat 1 is provided with an internal thread, thereby forming the connection of the main body 2 and the filter element joint seat 1. The inner wall of the filter flask 11 and the filter element assembly 3 are spaced apart from each other, thereby forming a raw water passage 4 therebetween.

As shown in fig. 2, 3 and 6, the filter element assembly 3 includes a support cylinder 14 and a filter screen 15, wherein the filter screen 15 is a stainless steel net, the side wall of the support cylinder 14 is provided with a plurality of through holes for allowing water to pass through, and the filter screen 15 is sleeved outside the support cylinder 14 to perform a filtering function. The clean water passage 5 is thus formed in the support cylinder 14. In particular with regard to the support cylinder 14, it comprises a cylinder body 21 in a single piece, the lower end of the cylinder body 21 being closed by the sheet material thereon, and the upper end of the cylinder body 21 being provided with an opening, the upper end cap 16 covering the opening. Meanwhile, a second sealing ring 19 is arranged between the inner wall of the cylinder 21 and the outer wall of the upper end cover 16, so that the connection and the sealing between the cylinder and the upper end cover are ensured, and the filtered water is prevented from flowing into the raw water channel 4 by mistake. In addition, ultrasonic welding may be performed between the cylinder 21 and the upper end cap 16 to perform a sealing function instead of the second sealing ring 19. Meanwhile, a fifth sealing ring 28 is arranged between the cylinder 21 and the filter screen 15, so that the influence of water flow between the cylinder 21 and the filter screen 15 on filtering can be avoided.

As shown in fig. 1 and 2, a central tube 13 is disposed in the main body 2, and penetrates the filter element assembly 3 up and down, and the upper end thereof is connected to the filter element holder 1, and the lower end thereof, even the lower side of the filter element assembly 3, is disposed in the raw water passage 4, and the inside thereof forms the flushing passage 6.

As for the filter element connecting seat 1, as shown in fig. 2 and 5, the filter element connecting seat 1 is provided with a water purifying port 8, a raw water port 7 and a flushing port 9 which penetrate through to the lower end thereof, the water purifying port 8 can be connected with a water tap through a water pipe to provide filtered water for the water tap, and the flushing port 9 is provided with a valve which is connected with a sewer pipe to discharge waste water for flushing; the upper end cover 16 is provided with a connecting pipe 17 extending upwards, wherein the raw water port 7 is vertically arranged and is connected with a water supply source, and the lower end of the raw water port is arranged at the periphery of the filter element assembly 3 to form communication with the raw water channel 4; the bottom of the filter element connecting seat 1 is provided with a cavity 27 with an opening at the lower end, the section of the cavity 27 is circular and is concentrically arranged with the connecting pipe 16, and the water purifying port 8 and the flushing port 9 are respectively communicated with the cavity 27; meanwhile, the upper end of the central tube 13 is communicated to the flushing port 9, so that the communication between the flushing port 9 and the cavity 27 is blocked; in addition, the upper end of the connecting pipe 17 is connected with the lower end of the cavity 27, and the water purifying channel 5 in the filter element assembly 3 is communicated with the water purifying port 8. Notably, the central tube 13 is connected with the flushing port 9 in a sealing manner through the fourth sealing ring 20, and the connecting tube 17 is connected with the cavity 27 in a sealing manner through the third sealing ring 13, so that the fluid of the water purifying channel 5 and the fluid of the flushing channel 6 are prevented from leaking, and the safety of saving users and water is ensured.

In order to position and fix the center tube, as shown in fig. 5, the upper end of the center tube 13 penetrates the connection pipe 17, and a plurality of guide ribs 33 are provided between the connection pipe 17 and the center tube 13 to prevent the center tube 13 from being inclined. As also shown in fig. 1 and 4, the filter flask 11 is provided with a plurality of positioning ribs 12 at the bottom of the filter cartridge assembly 3 for positionally mounting and supporting the filter cartridge assembly 3. Meanwhile, as shown in fig. 4, the bottom of the cylinder 21 is provided with a fixing hole 24, the central tube 21 penetrates through the fixing hole 24 and is sealed by a first sealing ring 23, so that the bottom of the filter element assembly 3 is ensured to be closed, and filtered water cannot directly flow into the central tube 13. The lower end of the central tube 13 is provided with a limiting ring 26, the limiting ring 26 is clamped between the support cylinder 26 and the positioning rib 12, and the positioning bulge 25 protruding out of the bottom of the filter flask 11 is arranged at an interval with the lower end of the central tube 13, so that sufficient water inflow of the central tube 13 is ensured.

When installing the pre-filter, firstly, the central tube 13 needs to be inserted from the bottom of the cylinder 21; then, the upper end cover is sleeved into the central tube 13 from the upper part and is connected with the cylinder 21 in a sealing way; then, the filter screen 15 is sleeved on the cylinder 21 to form a filter element assembly 3; the filter element assembly is placed in a filter flask 11, and the filter flask 11 is connected with a filter flask upper cover 10 by adopting a spin-melting process to assemble a main body 2; and finally, rotating the main body 2, and screwing the main body on the filter element connecting seat 1 to complete the installation of the pre-filter.

As shown in fig. 7, when the faucet is turned on and the valve on the flushing port 9 is closed, that is, when the flushing port 9 is closed and the water purifying port 8 is opened, the pre-filter is in a filtering state, raw water enters the inside of the filter flask 11 through the raw water port 7, and at this time, water flows into the water purifying channel 5 after being filtered by the filter screen 15 and then flows out through the water purifying port 8 to realize filtering. As shown in fig. 8, when closing tap and opening and washing the valve on the mouth 9, when washing mouth 9 opened and the water purification mouth 8 closed promptly, this leading filter was in the state of washing, and raw water can get into inside filter flask 11 through raw water mouth 7, gets into center tube 13 through filter flask 11 bottom afterwards, flows out through washing mouth 9 afterwards, and the raw water carries out the side to the filter screen and washes, forms the side shearing force and promotes the washing effect, extension filter screen life, protects tap one side water purifier filter core, carries out the prefiltration to the whole room water.

Example two

Please refer to fig. 9 and 10 for a second embodiment of the pre-filter of the present invention. The main differences of this implementation with respect to the first embodiment are: the main body 2 and the filter element connecting seat 1 are connected in different modes.

Specifically, as shown in fig. 9 and 10, the upper end of the filter flask upper cover 10 is provided with two laterally protruding snap protrusions 31, the two snap protrusions 31 are disposed on two sides of the filter flask upper cover 10, and correspondingly, the lower end of the filter cartridge holder 1 is provided with a snap position 32. When connecting main part 2 and filter core joint chair 1, need with buckle arch 31 and the crisscross setting of knot position 32 to insert filter core joint chair 1 with the upper end of main part 2 in, after the upper end of main part 2 offsets with filter core joint chair 1, rotatory main part 2, buckle arch 31 corresponds with knot position 32, forms the buckle, locks main part 2 and filter core joint chair 1.

In addition, a sixth sealing ring 30 is arranged between the main body 2 and the filter element connecting seat 1 to prevent water from leaking.

This embodiment is for embodiment one, and its connection form is simpler, and the dismouting is more convenient.

EXAMPLE III

Please refer to fig. 11 and 12, which illustrate a third embodiment of the prefilter of the present invention. The main differences of this embodiment from the second embodiment are: the raw water port and the purified water port are different in position.

Specifically, as shown in fig. 11 and 12, the support cylinder 14 includes a cylinder 21 and a filter screen 15 disposed inside thereof, wherein the filter screen 15 is a stainless steel net and covers an inner surface of the cylinder 21. In addition, the raw water port 7 communicates with the filter element assembly 3, a raw water passage 4 is formed in the filter element assembly 3, and simultaneously, the water purifying port 8 communicates with the periphery of the filter element assembly 3, and a water purifying passage 5 is formed between the filter element assembly 3 and the filter flask 11. Correspondingly, the central tube 13 serves as a flushing channel 6, the upper end of the central tube extends out of the filter element assembly 3 and is communicated with a flushing port on the filter element connecting seat 1, and the lower end of the central tube extends to the bottom of the inner side of the filter element assembly 3 and does not extend out of the filter element assembly 3.

When this leading filter was in the filtration state, the raw water can get into filter element group spare 3 inside through raw water mouth 7, and at this moment, rivers filter the back through the filter screen and get into in the water purification passageway 5 of filter element group spare 3 periphery, flow through water purification mouth 8 afterwards, realize filtering. When this leading filter was in the state of washing, the raw water can get into filter element group spare 3 through raw water mouth 7 inside, and back gets into center tube 13 through 3 bottoms of filter element group spare, flows through washing mouthful 9 afterwards, and the raw water carries out the side to the filter screen and washes, extension filter screen life equally.

Example four

Please refer to fig. 13, which shows a fourth embodiment of the prefilter of the present invention. The main differences of this embodiment from the second embodiment are: the center tube does not extend through the filter element assembly.

Specifically, as shown in fig. 13, the center pipe 13 is a zigzag pipe which laterally protrudes from the filter element assembly 3 and vertically extends to the bottom of the filter element assembly 3. Center tube 13 does not influence the filtration process, and when washing the state, the raw water still can be through filter flask bottom entering center tube 13, can carry out the side to the filter screen and wash, promotes and erodees the effect.

EXAMPLE five

Please refer to the fifth embodiment of the prefilter of the present invention. The main differences of this embodiment from the second embodiment are: the flushing port is provided with an electromagnetic valve.

Specifically, the valve provided in the flushing port is an electromagnetic valve capable of opening and closing the flushing port. In addition, the prefilter also comprises a controller, wherein the electromagnetic valve is electrically connected with the controller, and can control the opening and closing of the flushing port to realize the timing flushing, so that the manual control of cleaning is omitted, and the water consumption of a user is not influenced.

For example, the controller sets up and washes the time in early morning, and at washing the time, the user is in the sleep state mostly, and the end is all closed with the water, has equaled closed the water purification mouth, and at this moment, the controller can control and open the solenoid valve of washing mouthful department, and the raw water can be in proper order through former mouth of a river, filter flask inside, center tube and wash the mouth, and its flow process has washed the filter screen, has realized the washing of filter element group spare.

Combine above-mentioned embodiment one to embodiment five, the utility model discloses a filter element group spare is washed to rivers in the leading filter is usable, avoids manual abluent trouble to wash the mouth setting on the filter core joint chair, make the rivers business turn over all integrated on the filter core joint chair, simplified the structure. The utility model discloses a lower extreme that the center tube runs through a support section of thick bamboo just sets up sealedly, prevents to enter into the center tube through filterable water. The utility model discloses a be provided with a plurality of direction muscle between connecting pipe and the center tube, can make the center tube vertical, prevent its slope, guarantee the sealed at its both ends. The utility model discloses a be provided with the location muscle between the bottom of filter element group spare and the filter flask, this filter element group spare of location guarantees assembly stability. The utility model discloses a wash mouthful and be provided with the solenoid valve, control automatic switching and wash mouthful, can reach regularly abluent purpose, still avoided manual operation, further convenience of customers.

In the description of the present application, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a can be from leading filter that washes, includes filter core joint chair and the main part that meets from top to bottom, the main part includes filter element group spare, the filter core joint chair is provided with clean mouth of a river and former water mouth, by in the main part filter element group spare divide the play with former water channel of former water mouth intercommunication and with the water purification passageway of water purification mouth intercommunication, a serial communication port, but be provided with open closed washing mouth on the filter core joint chair, be provided with in the main part and wash the passageway, wash the passageway one end with wash the mouth intercommunication for the discharge washes the water of filter element group spare.

2. The self-flushable prefilter of claim 1 wherein said body has a center tube disposed therein, said center tube extending up and down through said filter element assembly and contacting said filter element adapter to form said flushing path.

3. The self-flushing prefilter of claim 2 wherein said filter element assembly comprises a support cylinder and a filter screen arranged outside said support cylinder, the bottom of said support cylinder is closed and provided with a fixing hole, said central tube penetrates through said fixing hole and is provided with a first sealing ring.

4. A self-flushable pre-filter as claimed in claim 3, wherein the top of the support cartridge is provided with an upwardly extending connecting tube which is sealingly connected to the cartridge receptacle, the central tube extending through the connecting tube.

5. The self-flushing prefilter of claim 4 wherein a cavity with an open lower end is formed at the bottom of said filter element seat, said clean water port and said flushing port are respectively communicated with said cavity, said connecting pipe is hermetically connected with said cavity, and the upper end of said central pipe penetrates through said cavity and is hermetically connected with said flushing port.

6. A self-flushable pre-filter as claimed in claim 4, wherein a plurality of guide ribs are provided between the connecting tube and the central tube to prevent the central tube from tilting.

7. The self-flushable pre-filter of claim 3, wherein the body comprises a filter flask, the filter element assembly being disposed within the filter flask, a positioning rib being disposed between a bottom of the filter element assembly and the filter flask.

8. The self-flushable pre-filter of claim 4, wherein the support cartridge comprises a cartridge body and an upper end cap disposed on top of the cartridge body, the connection tube being disposed on the upper end cap, and a second sealing ring being disposed between the cartridge body and the upper end cap.

9. The self-flushable pre-filter of claim 5, wherein the cavity is circular in cross-section and is disposed concentrically with the connecting tube.

10. A self-flushable pre-filter according to any one of claims 1 to 9, wherein the flushing port is provided with a solenoid valve for opening and closing the flushing port.