CN211676552U

CN211676552U - Innovative backwashing filter

Info

Publication number: CN211676552U
Application number: CN201921539948.9U
Authority: CN
Inventors: 林叔翔; 吴克麟; 李智钦; 陈良
Original assignee: Quanzhou Kefa Sanitary Ware Co ltd
Current assignee: Quanzhou Kefa Sanitary Ware Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-10-16
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses an innovative backwashing filter, which comprises a filter body, a filter screen component and a filter core component; the filter body is provided with a main water inlet, a first water outlet, a back flush water outlet and a filter element assembly port; the filter screen assembly is provided with a filter screen raw water side and a filter screen water purifying port, the filter screen raw water side is communicated with the main water inlet, and a rotary drainage blade is arranged at a transition position correspondingly communicated with the main water inlet; the back washing water outlet corresponds to the raw water side of the filter screen; the filter element group spare is installed on filter element equipment mouth, and filter screen water purification mouth is linked together the setting through the raw water side intercommunication of filter body with the filter element group spare, the water purification side of filter element group spare and first delivery port. The filter core subassembly back flush demand is avoided to the present case ingenious, not only realizes simple but also convenient self-cleaning filter screen subassembly effect, and the filter core part has simply moreover, economizes material, low cost advantage.

Description

Innovative backwashing filter

Technical Field

The utility model relates to the technical field of filters, specifically indicate an innovation back flush filter.

Background

The filter is a filtering device placed in the water inlet pipe, can filter impurities in water such as silt, rust, flotage and the like, can improve water quality, and can also protect the device. The core of the filter is the filter element assembly, and in order to prolong the service life of the filter element assembly, an effective measure is to adopt back washing to clean the filter element assembly, so that the filter element assembly can be recycled to a certain extent.

At present, the backwashing treatment of the filter element assembly is generally realized by changing the water flow direction inside and outside the filter element assembly and switching a water way. In this way, the related valve body assembly is usually required to be designed to realize switching, and the structural design is relatively complex.

In addition, the filter has the following disadvantages in practical application: first, the filter element assembly typically requires periodic replacement, which is often annoying to the user in use because the user does not remember the time of replacement; second, the filter may be damaged under freezing conditions.

In view of the above, the present application provides an innovative backwash filter, which is made based on the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an innovation back flush filter avoids filter element group spare back flush demand ingeniously, not only realizes simple but also convenient self-cleaning filter screen subassembly effect, and the filter element part has simple moreover, economizes material, low-cost advantage.

In order to achieve the above purpose, the solution of the present invention is:

an innovative backwashing filter comprises a filter body, a filter screen assembly and a filter element assembly; the filter body is provided with a main water inlet, a first water outlet, a back flush water outlet and a filter element assembly port; the filter screen assembly is provided with a filter screen raw water side and a filter screen water purifying port, the filter screen raw water side is communicated with the main water inlet, and a rotary drainage blade is arranged at a transition position correspondingly communicated with the main water inlet; the back washing water outlet corresponds to the raw water side of the filter screen; the filter element group spare is installed on filter element equipment mouth, and filter screen water purification mouth is linked together the setting through the raw water side intercommunication of filter body with the filter element group spare, the water purification side of filter element group spare and first delivery port.

An inner sleeve is formed in an inner cavity of the filter body, and an external communication channel for communicating a filter screen water purifying port with a filter element assembly raw water side is formed between the inner sleeve and the filter body; the cylinder cavity of the inner sleeve is formed into an interconnecting passage which is communicated with the water purifying side of the filter element component and the first water outlet.

The filter body is also provided with a second water outlet which is communicated with the filter screen water purifying port.

The rotating drainage vanes are disposed on the end of the screen assembly and are disposed toward the main water inlet.

The rotary drainage blade is provided with at least two pieces, and at least two paths of rotary water flow are formed.

A quick-dismounting mechanism is arranged between the filter element assembly and the filter element assembly port, and mainly comprises a shifting piece and a spring part; the side wall of the assembly part of the filter element assembly is convexly arranged on the fixture block, the filter element assembly opening is provided with an insertion opening for the fixture block to be axially inserted, a clamping groove for axially limiting the fixture block is arranged beside the insertion opening, and a communication opening for the fixture block to rotate is formed between the clamping groove and the insertion opening; the below of socket is equipped with plectrum groove, and the plectrum passes through the spring part and assembles in plectrum inslot to the plectrum receives the spring part effect to make its top up the closed intercommunication mouth setting of top limit, has the portion of dialling of the hand that stretches out filter body on the plectrum.

The top of the shifting piece is designed into an inclined top surface to form a triangular top limit part.

The bottom of the plectrum groove is provided with a through bottom opening, and the bottom of the plectrum extends out of the bottom opening and is provided with a barb part limited on the bottom opening.

The outer side wall of the filter body is convexly provided with a shifting piece box, the shifting piece box is internally provided with a shifting piece groove, and the shifting piece box is provided with an adjusting opening for stretching out the hand shifting part and adjusting the vertical displacement.

The filter element assembly is characterized in that an auxiliary block opposite to the clamping block is further arranged on the side wall of the assembly part of the filter element assembly in a protruding mode, and an auxiliary groove for allowing the auxiliary block to be placed in a rotating mode is formed in the filter element assembly opening.

And a plug nut is arranged at the back washing water outlet.

And a month dial is arranged on the filter element component.

Still be equipped with the rubber mat that prevents frostbite in the filter body, this rubber mat that prevents frostbite corresponds to install the position that can adjust the water route volume in the filter body.

After the technical scheme is adopted, the utility model discloses innovation back flush filter lies in for prior art's beneficial effect: the filter is equipped with filter screen subassembly and two sets of filter assembly of filter element group spare, and the filter screen subassembly is used for filtering great impurity in the front, and filter element group spare is after doing secondary filter, filters tiny impurity. The filter core component backwashing requirement is ingeniously avoided, the filter core part is simply and simply designed, and the cost advantage of saving consumable filter cores is brought.

Moreover, the present case is still ingenious the unique back flush mode of designing filter screen subassembly, creatively designs rotatory drainage blade, and the water that total water inlet introduced forms rotatory water under the blade guide, and rotatory water is rotatory in filter screen subassembly department, brings two points of benefit: firstly, the filter screen is not easy to block in the water outlet process; secondly, in the back washing operation, under the action of centrifugal force, water can take away impurities at the filter screen assembly and finally flows out from the back washing water outlet. The filter screen assembly is simply and conveniently automatically cleaned.

The present case the filter core equipment mouth of filter body's design still provides very convenient feasibility design for filter element group spare quick assembly disassembly, realizes the simple and convenient advantage of renew cartridge.

Preferably, the scheme also has an anti-freezing structure design, and the problem that the filter is frozen and cracked can be effectively avoided. And the filter element replacement prompting function is realized, and the filter element replacement prompting device is practical, simple and understandable.

Drawings

FIG. 1 is a perspective view of a backflush filter;

FIG. 2 is an exploded view of the backflush filter;

FIG. 3 is a cross-sectional view of a backflush filter;

FIG. 4 is a schematic view of the structure of the backwash section of the backwash filter;

FIG. 5 is a schematic view of the internal structure of the filter body of the backflush filter;

FIG. 6 is a schematic view of the water outlet function of the backflush filter;

FIG. 7 is a functional schematic of the backwash filter;

FIG. 8 is a schematic view of the quick release mechanism portion of the cartridge assembly port;

FIG. 9 is an enlarged view of a portion of the structure of FIG. 8;

FIG. 10 is a schematic structural view of the paddle;

FIG. 11 is a schematic view of a portion of the quick release mechanism;

fig. 12 is a front view of the month dial;

FIG. 13 is a schematic view of the installation action of the filter cartridge assembly;

FIG. 14 is a schematic illustration of the disassembly action of the filter cartridge assembly.

Description of the reference symbols

A filter body 1, a main water inlet 11, a first water outlet 12, a back washing water outlet 13,

a second water outlet 14, a water inlet connector 15, a filter element assembling port 16,

an inner sleeve 17, an external communication passage 171, an internal and external communication passage 172,

a filter screen component 2, a filter screen raw water side 21, a filter screen water purifying opening 22,

a filter element assembly 3, a housing 30, a raw water side 31, a purified water side 32,

the rotating drainage blade 4, the anti-freezing rubber mat 6,

a quick-release mechanism 5, a shifting piece 51, a triangular top limit part 511, a hand-pulling part 512, an inverted hook part 513, a spring part 52, a clamping block 53, a socket 54, a clamping groove 55, a communication opening 551,

a piece-pulling groove 56, a piece-pulling box 57, an adjusting opening 571, a bottom opening 572, an auxiliary block 58,

a month dial 7, a first mark 71, a second mark 72, a plug nut 8.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The scheme relates to an innovative backwashing filter, which mainly comprises a filter body 1, a filter screen assembly 2 and a filter core assembly 3, as shown in figures 1-14.

The filter body 1 is provided with a main water inlet 11, a first water outlet 12, a back flush water outlet 13 and a filter element assembly port 16. The filter screen assembly 2 is assembled at the position of the filter body 1 corresponding to the main water inlet 11, and the filter screen assembly 2 is provided with a filter screen raw water side 21 and a filter screen water purifying opening 22. In the embodiment, the strainer assembly 2 is installed in the filter body 1 through the flange portion, the strainer raw water side 21 and the strainer water purification port 22 are respectively located at two sides of the flange portion, wherein the strainer raw water side 21 is correspondingly close to one side of the total water inlet 11 and the two are communicated with each other, the flange portion is preferably provided with a sealing member to hermetically separate the strainer raw water side 21 and the strainer water purification port 22, and the strainer assembly 2 is realized to exert a filtering function. In addition, in order to realize the simple assembly of the filter screen assembly 2 at the main water inlet 11, a water inlet joint 15 is also arranged at the main water inlet 11.

The former water side 21 of filter screen subassembly 2 sets up with total water inlet 11 intercommunication to the transition position department that corresponds the intercommunication is equipped with rotatory drainage blade 4. Thus, the water fed from the main water inlet 11 is converted into rotational flow water by the rotating flow guide blades 4 and then is guided to the raw water side 21 of the filter screen.

In the preferred scheme, the rotary drainage blades 4 are provided with at least two pieces (two pieces in the specific embodiment) to form at least two paths (two paths in the specific embodiment) of rotary water flow, so that the rotary drainage effect brought by the rotary drainage blades 4 is improved, and the exerted effects of difficult blockage and backwashing are better. Furthermore, the specific way of mounting the rotating guide vanes 4 in the filter body 4, preferably the rotating guide vanes 4 are arranged on the end of the sieve assembly 2 and towards the total water inlet 11.

The position of the backwash water outlet 13 on the filter body 1 is a position corresponding to the raw water side 21 of the filter screen, and certainly, the backwash water outlet 13 is communicated with the raw water side 21 of the filter screen. Specifically, the side of the main water inlet 11 is the front, the side of the filter screen assembly 2 is the rear, and the backwashing water outlet 13 is arranged at the rear position of the rotary drainage blade 4. The backwash water outlet 13 is opened only when the backwash operation is performed, and is otherwise in a sealed and non-water-discharging state, and therefore, preferably, the backwash water outlet 13 is also provided with a plug nut 8.

The filter element assembly 3 is installed on the filter element assembly opening 16, the filter element assembly 3 comprises a shell 30 and a filter element arranged in the shell 30, and the filter element is provided with a raw water side 31 and a purified water side 32. The filter screen water purifying port 22 is communicated with the raw water side 31 of the filter element assembly 3 through the filter body 1, and the water purifying side 32 of the filter element assembly 3 is communicated with the first water outlet 12. Thus, the primary filtered and purified water from the filter net water gap 22 of the filter assembly 2 is delivered to the raw water side 31 of the filter core assembly 3 through the filter body 1, enters the purified water side 32 of the filter core assembly 3 for secondary filtering and purification, and is finally delivered out from the first water outlet 12.

Preferably, the strainer water purification port 22 is communicated with the raw water side 31, an inner sleeve 17 is formed in an inner cavity of the filter body 1, an external communication path 171 is formed by separating the inner sleeve 17 from the inner cavity wall of the filter body 1, and the communication path 171 is communicated with the strainer water purification port 22 and the raw water side 31 of the strainer core assembly 3; the barrel cavity of the inner sleeve 17 is formed as an interconnecting passage 172 connecting the clean water side 32 of the cartridge module 3 with the first water outlet 12.

Preferably, the filter is designed to have the primary filtration purified water and the secondary filtration purified water, and the purified water which is sent out from the first water outlet 12 is the purified water which is filtered for the second time. The filter body 1 of the present disclosure is further provided with a second water outlet 14, and the second water outlet 14 is communicated with the filter screen water purifying port 22 (the external communication path 171), and specifically is communicated with the external communication path 171. The purified water can be sent out through the second water outlet 14 for one time of filtration, so as to be used in different occasions.

Preferably, the filter element assembly 3 is arranged independently of the filter body 1, and the filter element assembly 3 is mounted on the filter element assembly port 16 in a quick-assembly and disassembly mode. A quick-dismounting mechanism 5 is arranged between the filter element assembly 3 and the filter element assembly opening 16, and the quick-dismounting mechanism 5 mainly comprises a shifting piece 51 and a spring piece 52. The filter element assembly 3 has an assembly portion 33 assembled corresponding to the filter element assembly opening 16, a latch 53 is protruded from a side wall of the assembly portion 33, a socket 54 is provided on the filter element assembly opening 16, and the latch 53 can be inserted into the socket 54 in an axial matching manner. A clamping groove 55 capable of axially limiting the clamping block 53 is arranged beside the inserting hole 54, and a communication opening 551 is formed between the clamping groove 55 and the inserting hole 54; the latch 53 is inserted from the insertion opening 54, and then is rotated into the latch groove 55 through the communication opening 551, so that the latch 53 is axially limited by the latch groove 55.

A shifting piece groove 56 is arranged below the inserting hole 54, the shifting piece 51 is assembled in the shifting piece groove 56 through the spring piece 52, specifically, the spring piece 52 is sleeved on the shifting piece 51, and the upper end and the lower end of the spring piece are respectively supported on the top 511 and the groove bottom of the shifting piece groove 56. The shifting piece 51 is elastically supported by the spring piece 52, so that the top 511 of the shifting piece 51 is limited to be arranged at the automatic closing communication port 551 upwards, and the shifting piece 51 is provided with a hand-pulling part 512 extending out of the filter body 1.

The filter element assembly 3 is installed on the filter element assembling opening 16 of the filter body 1, as shown in fig. 8, the assembling portion 33 of the filter element assembly 3 faces the filter element assembling opening 16, the latch 53 is correspondingly inserted from the insertion opening 54, the latch 53 presses against the top 511 of the dial 51 to open the communication opening 551, and then the communication opening 551 is rotated clockwise until the communication opening is not rotated, the latch 53 is matched with the slot 55, the dial 51 automatically returns to the closed communication opening 551 under the elastic force of the spring element 52, and the filter element is installed. The axial direction of the fixture block 53 is limited by the clamping groove 55, and the radial direction of the fixture block 53 is limited by the top 511, thereby ensuring that the filter element assembly 3 is stably and reliably installed on the filter body 1.

The operation of disassembling the filter element assembly 3 from the filter element assembling port 16 of the filter body 1 is to pull down and not to release the hand-pulling portion 512 extending out of the filter body 1 as shown in fig. 9, at this time, the communicating port 551 is opened, the filter element assembly 3 is rotated counterclockwise (the inserting port 54 has a rotation stopping effect on the filter element), and then the hand-pulling portion 512 is released, and the filter element assembly is taken out upward. During the filter element group spare 3 change of present case filter, regardless of the installation still disassemble the operation, all very simple, quick.

Preferably, the top 511 of the pick 51 is designed as an inclined top surface to form a triangular top limit part, wherein the inclined high end part is arranged corresponding to the side of the communication port 551. Therefore, the closing effect of the communication opening 551 is realized, the pushing of the shifting piece 51 during installation is facilitated, and the shifting piece 51 can flexibly and smoothly move.

Preferably, the mounting manner of the pick 51 is that the bottom of the pick groove 56 has a bottom opening 571 therethrough, and the bottom of the pick 51 extends out of the bottom opening 571 and is provided with a barb part 513 limited on the bottom opening 571.

Preferably, the design mode of the shifting sheet groove 56 is that a shifting sheet box 57 is convexly arranged on the outer side wall of the filter body 1, the shifting sheet groove 56 is formed in the shifting sheet box 57, and an adjusting opening 572 is formed in the box surface of the shifting sheet box 57 and used for the manual shifting portion 512 to stretch out and shift up and down for adjustment.

Preferably, an auxiliary block 58 is further protruded on the side wall of the assembling portion 33 of the filter element assembly 3, and the auxiliary block 58 is arranged opposite to the block 53; the filter element assembling opening 16 is provided with an auxiliary groove for the auxiliary block to be rotatably arranged. Thus, the stability of the assembly of the filter element assembly 3 is improved by the matching of the auxiliary block 58 and the auxiliary groove.

Further, a month dial 7 for reminding of filter element replacement is provided in particular, the month dial 7 being preferably provided on top of the filter element assembly 3. The specific scheme of the month dial 7 is that the month dial has an inner ring and an outer ring which can rotate relatively inside and outside, month scales are arranged on the outer ring, and a first mark 71 and a second mark 72 are arranged on the inner ring at proper intervals. When the filter element assembly 3 is replaced, an operator can conveniently adjust the month dial 7 on the filter element assembly, so that the current month scale is aligned with the first mark 71, and the month scale aligned with the second mark 72 is the month of the next replacement rate core assembly, thereby realizing the filter element replacement prompting function, being simple and easy to understand, and overcoming the trouble that a user forgets to replace time easily in use. Of course, the month dial 7 can be arranged at any other position, and the arrangement of the month dial on the filter element assembly 3 is the best embodiment, so that the best prompt function is achieved.

In a preferable scheme, an anti-freezing rubber mat 6 is further arranged in the filter body 1, and the anti-freezing rubber mat 6 is correspondingly arranged at a position where the volume of a water path in the filter body can be adjusted. So, under freezing condition, when the water in the water route of filter body 15 takes place to freeze, the volume grow plays the compression volume effect through the cushion 6 that prevents frostbite, offsets the volume grow of falling water part, can effectively avoid the filter by freezing the spalling, has the function of preventing frostbite. In the specific design, the antifreeze rubber pad 6 is installed at the filter element assembling port 16 and located between the filter element assembly 3 and the inner sleeve 17, and the antifreeze rubber pad 6 has an outer ring portion and an inner ring portion which respectively extend to the outer communication path 171 and the inner communication path 172, so that the excellent antifreeze function is exerted inside and outside.

The principle of the filter backwashing automatic cleaning filter screen assembly is as follows: when the water outlet of the filter (including the first water outlet 12 and the second water outlet 14) is not in a water outlet state, the main water inlet 11 continuously feeds water, the plug nut 8 at the back flush water outlet 13 is opened, the rotary drainage blades 4 form rotary water (in the specific embodiment, two rotary water flows), the rotary water flows rotate at the filter screen assembly 2, and under the action of centrifugal force, the water can take away impurities at the filter screen assembly 2 and finally flows out from the back flush water outlet 13.

The innovative backwashing filter of the scheme has the main innovative points embodied in the following closely-associated overall design:

1. two sets of filtering component of secondary filter around the filter design, wherein filter screen subassembly 2 is used for filtering in the front and filters great impurity, and filter element subassembly 3 filters tiny impurity at the back of doing the secondary filter. The filter element component 3 is ingeniously avoided from carrying out high-difficulty backwashing, and the filter element part can be greatly and simply designed, so that the cost advantage of saving the consumable filter element is brought.

2. Moreover, on the basis, the present case still designs the unique back flush mode of filter screen subassembly 2 ingeniously, creatively designs rotatory drainage blade 4, and the water that total water inlet 12 was introduced forms rotatory water under the blade guide, and rotatory water is rotatory in filter screen subassembly 2 department, brings two points of benefit: firstly, the filter screen component is not easy to block in the water outlet process; secondly, in the back washing operation, under the action of centrifugal force, water can take away impurities at the filter screen assembly 2 and finally flows out from the back washing water outlet 13. The function of simply and conveniently automatically cleaning the filter screen assembly 2 is realized, and complicated disassembling and cleaning operations are not needed.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. An innovative backwash filter, which is characterized in that: comprises a filter body, a filter screen component and a filter element component; the filter body is provided with a main water inlet, a first water outlet, a back flush water outlet and a filter element assembly port; the filter screen assembly is provided with a filter screen raw water side and a filter screen water purifying port, the filter screen raw water side is communicated with the main water inlet, and a rotary drainage blade is arranged at a transition position correspondingly communicated with the main water inlet; the back washing water outlet corresponds to the raw water side of the filter screen; the filter element group spare is installed on filter element equipment mouth, and filter screen water purification mouth is linked together the setting through the raw water side intercommunication of filter body with the filter element group spare, the water purification side of filter element group spare and first delivery port.

2. An innovative backflush filter according to claim 1, characterized in that: an inner sleeve is formed in an inner cavity of the filter body, and an external communication channel for communicating a filter screen water purifying port with a filter element assembly raw water side is formed between the inner sleeve and the filter body; the cylinder cavity of the inner sleeve is formed into an interconnecting passage which is communicated with the water purifying side of the filter element component and the first water outlet.

3. An innovative backflush filter according to claim 1, characterized in that: the filter body is also provided with a second water outlet which is communicated with the filter screen water purifying port.

4. An innovative backflush filter according to claim 1, characterized in that: the rotating drainage vanes are disposed on the end of the screen assembly and are disposed toward the main water inlet.

5. An innovative backflush filter according to claim 1, characterized in that: the rotary drainage blade is provided with at least two pieces, and at least two paths of rotary water flow are formed.

6. An innovative backflush filter according to claim 1, characterized in that: a quick-dismounting mechanism is arranged between the filter element assembly and the filter element assembly port, and mainly comprises a shifting piece and a spring part; the side wall of the assembly part of the filter element assembly is convexly arranged on the fixture block, the filter element assembly opening is provided with an insertion opening for the fixture block to be axially inserted, a clamping groove for axially limiting the fixture block is arranged beside the insertion opening, and a communication opening for the fixture block to rotate is formed between the clamping groove and the insertion opening; the below of socket is equipped with plectrum groove, and the plectrum passes through the spring part and assembles in plectrum inslot to the plectrum receives the spring part effect to make its top up the closed intercommunication mouth setting of top limit, has the portion of dialling of the hand that stretches out filter body on the plectrum.

7. An innovative backflush filter according to claim 6, wherein: the bottom of the plectrum groove is provided with a through bottom opening, and the bottom of the plectrum extends out of the bottom opening and is provided with a barb part limited on the bottom opening.

8. An innovative backflush filter according to claim 6, wherein: the outer side wall of the filter body is convexly provided with a shifting piece box, the shifting piece box is internally provided with a shifting piece groove, and the shifting piece box is provided with an adjusting opening for stretching out the hand shifting part and adjusting the vertical displacement.

9. An innovative backflush filter according to claim 1, characterized in that: and a month dial is arranged on the filter element component.

10. An innovative backflush filter according to claim 1, characterized in that: still be equipped with the rubber mat that prevents frostbite in the filter body, this rubber mat that prevents frostbite corresponds to install the position that can adjust the water route volume in the filter body.