CN216825107U - Reversible anti-blocking automatic scraping mechanism of front filter - Google Patents

Abstract

The utility model relates to a reversible anti-blocking type automatic scraping and washing mechanism of a front filter. It has solved the automatic technical problem such as blocking easily of time scraping of current leading filter. The water distribution piece is circumferentially positioned between the top fixing piece and the filter shell, an oblique flow guide type brush frame driving structure is arranged between the water distribution piece and the brush frame body, and the lower end of the brush frame body is connected with a reverse anti-clamping type driving structure. Has the advantages that: make brush yoke body circumferential direction on leading rivers to the impeller wheel seat through slant water conservancy diversion seat, scrape on the brush yoke body and wash filter housing or filter screen, realize scraping automatically and wash the function, when the too much brush yoke body of filter screen internal impurity is blocked, prevent card formula drive structure through the reversal and drive brush yoke body counter-rotation and make brush yoke body circumferential direction again to continue to scrape and wash, filtration state and scraping and washing state can automatic adjustment discharge.

Description

Reversible anti-blocking automatic scraping mechanism of front filter

Technical Field

The utility model belongs to the technical field of filter equipment, concretely relates to automatic mechanism of scraping of reversible anticreep card formula of leading filter.

Background

The pre-filter is the first coarse filtration equipment for the water used in the whole house, is generally arranged at the front end of a pipeline and can filter large granular substances such as silt, rust, ova, red worms and the like in tap water. The filter has impurity to remain on the filter screen at the in-process that uses, so traditional leading filter need regularly with the whole dismantlement of filter, the adnexed dirt on the filter screen is scraped and washed in manual clearance, and the inconvenient dismantlement of leading filter is nevertheless rinsed, makes very inconvenient when wasing the filter screen like this, has reduced user's use and has experienced.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document previously filed by the applicant discloses a double-turbine cleaning structure of a pre-filter [202120148610.1], which includes a filter element cylinder disposed in a filter housing and having a filter screen in a circumferential direction, a filter frame body sleeved on a circumferential outer side of the filter element cylinder and forming a raw water chamber between a circumferential outer side of the filter screen and a circumferential inner side of the filter housing, the filter frame body rotating in a circumferential direction and being axially positioned with respect to the filter element cylinder, an upper turbine assembly for communicating a water inlet with the raw water chamber is disposed at an upper end of the filter frame body, a lower turbine assembly for communicating the raw water chamber with a drain outlet is disposed at a lower end of the filter frame body, the upper turbine assembly and/or the lower turbine assembly is/are linked with the filter frame body, and an oblique flow guide mechanism located between the upper turbine assembly and the lower turbine assembly and facing the circumferential outer side of the filter screen is disposed in the circumferential direction of the filter frame body.

Above-mentioned scheme has solved leading unable self-cleaning's of filter problem to a certain extent, drives through two turbines and filters the support body and realize scraping automatically and wash, but this scheme still has a great deal of not enough, for example can die the support body card of filtering when filter screen impurity is too much, makes it unable realization automatic scrape and wash the scheduling problem.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide an automatic mechanism of scraping of formula of blocking is prevented in leading filter's reversal.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this automatic mechanism of washing of scraping of reversible anti-sticking formula of leading filter, including setting up the filter core body that just circumference has the filter screen in the filter housing, filter core body circumference outside movable sleeve be equipped with and scrape the brush yoke body of washing the strip, its characterized in that, filter core body upper end be connected with central play water spare, central play water spare week outside cover be equipped with the top mounting just top mounting circumference outside cover be equipped with water distribution spare, water distribution spare circumference be located between top mounting and the filter housing, just water distribution spare and brush yoke body between be equipped with and enable the brush yoke body for filter core body circumferential direction's slant water conservancy diversion formula brush yoke drive structure, brush yoke body lower extreme be connected with and can drive brush yoke body antiport's reversal anti-sticking formula drive structure by the card when brush yoke body circumferential direction.

In the reversible anti-blocking automatic scraping and washing mechanism of the pre-filter, the lower end of the filter shell is provided with a drain valve capable of rotating circumferentially, and the reversible anti-blocking driving structure is arranged between the drain valve and the brush frame body.

In the automatic mechanism of washing of scraping of foretell leading filter's reversible anti-sticking formula, the reverse anti-sticking formula drive structure include two arcwall faces that set up terminal surface under the brush yoke body, thereby two arcwall faces end to end and arcwall face one end to the height of the other end all grow gradually form two spacing steps between two arcwall faces, blowoff valve upper end have with the arcwall face contact and with spacing step circumference spacing blowdown arch, terminal surface center has the locating hole under the brush yoke body, just blowoff valve upper end have the activity reference column of pegging graft in the locating hole.

In the reversible anti-blocking automatic scraping and washing mechanism of the front filter, the lower end of the central water outlet part is connected with the upper end of the filter element body in a clamping manner through a plurality of buckles, and the inside of the central water outlet part is communicated with the inside of the filter element body.

In the reversible anti-blocking automatic scraping and washing mechanism of the pre-filter, the top fixing piece is cylindrical and is provided with a plurality of water inlets in the circumferential outer side, the water distribution piece is provided with a plurality of water distribution positioning parts which are positioned in the circumferential outer periphery of the top fixing piece, and a water distribution notch corresponding to the water inlets is formed between every two adjacent water distribution positioning parts, and the upper end of each water distribution positioning part and the circumferential inner side of the filter shell and/or the circumferential outer side of the top fixing piece are circumferentially positioned through the concave-convex positioning structure.

In the reversible anti-blocking automatic scraping and washing mechanism of the pre-filter, the lower end of the water distribution piece is provided with a first sealing surface which is abutted against a second sealing surface at the upper end of the brush frame body, and an elastic jacking mechanism is arranged between the central water outlet piece and the water distribution piece.

In the reversible anti-blocking automatic scraping and washing mechanism of the pre-filter, the elastic jacking mechanism comprises a jacking spring sleeved on the circumferential outer side of the central water outlet piece, a plurality of spring limiting parts abutting against one end of the jacking spring are arranged on the circumferential outer side of the upper end of the central water outlet piece, and the other end of the jacking spring abuts against limiting steps on the circumferential inner side of the water distribution piece.

In the reversible anti-blocking automatic scraping and washing mechanism of the pre-filter, the inclined flow guide type brush carrier driving structure comprises an inclined flow guide seat which is arranged at the lower end of the water distribution piece and is contacted with the upper end of the filter element body, and the inclined flow guide seat is inserted into the circumferential inner side of the upper end of the brush carrier body and corresponds to the impeller seat formed on the circumferential inner side of the upper end of the brush carrier body.

In the reversible anti-blocking automatic scraping and washing mechanism of the front filter, the oblique diversion seat comprises a plurality of oblique diversion strips arranged on the circumferential inner side of the lower end surface of the water distribution piece, the oblique diversion strips are uniformly distributed by taking the center of the water distribution piece as the circumferential direction of a circle center, the oblique diversion strips extend towards the inclined direction in a clockwise or anticlockwise mode, and an oblique diversion channel is formed between every two adjacent diversion strips.

In the reversible anti-blocking automatic scraping mechanism of the pre-filter, the impeller seat comprises a plurality of inclined blades which are formed on the circumferential inner side of the upper end of the brush frame body and are uniformly distributed, the inclined blades correspond to the inclined flow guide channel, a plurality of water passing holes are formed on the circumferential outer side of the brush frame body, and each water passing hole is respectively positioned between the lower ends of two adjacent inclined blades.

Compared with the prior art, the utility model has the advantages of: simple structure leads rivers to make brush yoke body circumferential direction on the impeller seat through slant water conservancy diversion seat, scrapes to wash the strip on the brush yoke body and scrape filter housing or filter screen and wash, realizes scraping automatically and washes the function, when the too much brush yoke body of filter screen internal impurity is blocked, prevents through the reversal card formula drive structure and drives brush yoke body counter-rotation and make brush yoke physical stamina circumferential direction again to continue to scrape and wash, filtration state and scraping the state can automatic adjustment discharge.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a structural sectional view of the present invention.

Fig. 3 is a partial explosion diagram of the present invention.

Fig. 4 is a partial exploded view from another perspective of the present invention.

Fig. 5 is a schematic structural view of the middle water distribution member of the present invention.

In the figure: the filter comprises a filter shell 1, a filter element body 2, a brush holder body 3, a scraping and washing strip 31, a second sealing surface 32, a central water outlet part 4, a buckle 41, a top pressure spring 42, a spring limiting part 43, a spring limiting step 44, a top fixing part 5, a water inlet 51, a water distribution part 6, a water distribution positioning part 61, a water distribution notch 62, a first sealing surface 63, an oblique flow guide type brush holder driving structure 7, an oblique flow guide seat 71, an oblique flow guide strip 711, an oblique flow guide channel 712, an impeller seat 72, an oblique blade 721, a water through hole 722, a reverse anti-blocking driving structure 8, an arc-shaped surface 81, a limiting step 82, a sewage discharge protrusion 83, a positioning hole 84, a positioning column 85 and a sewage discharge valve 9.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-5, the reversible anti-jamming automatic scraping mechanism of the pre-filter comprises a filter element body 2 which is arranged in a filter shell 1 and is circumferentially provided with a filter screen, a brush frame body 3 provided with a scraping and washing strip 31 is movably sleeved on the outer circumferential side of the filter element body 2, a central water outlet piece 4 is connected to the upper end of the filter element body 2, a top fixing piece 5 is sleeved on the outer circumferential side of the central water outlet piece 4, a water distribution piece 6 is sleeved on the outer circumferential side of the top fixing piece 5, the water distribution piece 6 is circumferentially positioned between the top fixing piece 5 and the filter shell 1, an oblique flow guiding type brush frame driving structure 7 which enables the brush frame body 3 to circumferentially rotate relative to the filter element body 2 is arranged between the water distribution piece 6 and the brush frame body 3, and a reverse anti-jamming type driving structure 8 which can drive the brush frame body 3 to reversely rotate when the brush frame body 3 circumferentially rotates is connected to the lower end of the brush frame body.

When needs carry out the automation and scrape and wash, rivers pass through water distribution spare 6 by top mounting 5, drive brush yoke body 3 for 2 circumferential direction of filter element body under the effect of slant water conservancy diversion formula brush yoke drive structure 7, scrape and wash 1 inner wall of filter screen and/or filter housing under the effect of washing strip 31, when the more brush yoke body 3 of impurity is died unable continuation rotation by the card, drive 3 antiport of drive brush yoke body through reversal anticreep formula drive structure 8 and make brush yoke body physical stamina circumferential direction again, thereby continue to scrape and wash.

Preferably, the filter housing 1 here has a circumferentially rotatable waste valve 9 at its lower end, and a reverse rotation anti-jamming drive arrangement 8 is provided between the waste valve 9 and the brush holder body 3. Wherein, the card formula drive structure 8 is prevented in reversal includes two arcwall faces 81 that set up terminal surface under the brush yoke body 3, thereby two arcwall faces 81 end to end and arcwall face 81 one end highly all grow gradually to the other end form two spacing steps 82 between two arcwall faces 81, blowoff valve 9 upper end have with arcwall face 81 contact and with spacing step 82 circumference spacing blowdown arch 83, terminal surface center has locating hole 84 under the brush yoke body 3, and blowoff valve 9 upper end has the activity reference column 85 of pegging graft in locating hole 84. During the in-service use, brush yoke body 3 falls in 9 upper ends of blowoff valve and arcwall face 81 and the protruding 83 contact of blowdown under the action of gravity, 3 forward circumferential direction of brush yoke body under the state of scraping and washing, the protruding 83 of blowdown is rotated to high higher one end by the highly lower one end of arcwall face 81 for arcwall face 81, brush yoke body 3 can last to rotate for blowoff valve 9 like this, when brush yoke body 3 is died by the card and can't continue forward rotation, through reverse circumferential rotation blowoff valve 9, realize blowoff valve 9 and 3 one-way location of brush yoke body when the protruding 83 of blowdown supports to lean on each other with spacing step 82, drive 3 reverse circumferential direction of brush yoke body under the blowoff valve 9 effect.

Preferably, the slant flow guiding type brush holder driving structure 7 includes a slant flow guiding seat 71 disposed at a lower end of the water distributing member 6 and contacting with an upper end of the filter element body 2, and the slant flow guiding seat 71 is inserted into a circumferential inner side of an upper end of the brush holder body 3 and corresponds to an impeller seat 72 formed at a circumferential inner side of the upper end of the brush holder body 3.

The inclined flow guide seat 71 here includes a plurality of inclined flow guide strips 711 disposed on the circumferential inner side of the lower end surface of the water distribution member 6, the inclined flow guide strips 711 are circumferentially and uniformly distributed around the center of the water distribution member 6, the inclined flow guide strips 711 extend in the inclined direction in a clockwise or counterclockwise manner, and an inclined flow guide channel 712 is formed between two adjacent flow guide strips.

The impeller seat 72 includes a plurality of inclined blades 721 formed on the circumferential inner side of the upper end of the brush holder body 3 and uniformly distributed, the inclined blades 721 correspond to the inclined flow guide channels 712, the circumferential outer side of the brush holder body 3 has a plurality of water through holes 722, and each water through hole 722 is respectively located between the lower ends of two adjacent inclined blades 721.

Further, the lower end of the central water outlet member 4 is connected with the upper end of the filter element body 2 in a clamping manner through a plurality of buckles 41, and the inside of the central water outlet member 4 is communicated with the inside of the filter element body 2. The top fixing piece 5 is cylindrical and has a plurality of water inlet holes 51 on the circumferential outer side, the water distribution piece 6 has a plurality of water distribution positioning parts 61 positioned on the circumferential periphery of the top fixing piece 5, a water distribution gap 62 corresponding to the water inlet holes 51 is formed between two adjacent water distribution positioning parts 61, and the upper ends of the water distribution positioning parts 61 and the circumferential inner side of the filter shell 1 and/or the circumferential outer side of the top fixing piece 5 are circumferentially positioned by a concave-convex positioning structure. Preferably, the outer side of the upper end of the water distribution positioning part 61 is provided with a protrusion for clamping on the inner wall of the filter shell 1, and the protrusion of the circumferential outer side of the top fixing piece 5 is clamped with the inner groove of the upper end of the water distribution positioning part 61.

Furthermore, the lower end of the water distributor 6 has a first sealing surface 63, the first sealing surface 63 abuts against the second sealing surface 32 at the upper end of the brush holder body 3, and an elastic pressing mechanism is arranged between the central water outlet 4 and the water distributor 6. The elastic pressing mechanism comprises a pressing spring 42 sleeved on the circumferential outer side of the central water outlet part 4, a plurality of spring limiting parts 43 abutting against one end of the pressing spring 42 are arranged on the circumferential outer side of the upper end of the central water outlet part 4, and the other end of the pressing spring 42 abuts against a spring limiting step 44 on the circumferential inner side of the water distribution part 6.

In the scraping state, the first sealing surface 63 and the second sealing surface 32 are kept in contact, at this time, the water flow passing through is not large, but the water flow passing through the oblique flow guide channel 712 is enough to ensure the impact force for driving the impeller seat 72 to rotate circumferentially, so that the brush holder body 3 rotates circumferentially at a high speed; in order to ensure the water flow during normal use, the water impacts the top of the filter element body 2, the filter element body 2 moves downwards to leave the inclined flow guide seat 71 under the action of water pressure and overcoming the acting force of the top pressure spring 42, and the water passes through the inclined flow guide channel 712 and between the filter element body 2 and the water distribution member 6, so that the normal use water flow is ensured, therefore, the top pressure spring 42 plays a role in adjusting the water flow, and the filter element body 2 moves up and down to play a role in switching the water flow.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the filter housing 1, the filter element body 2, the brush holder body 3, the scraping and washing strip 31, the second sealing surface 32, the central water outlet 4, the buckle 41, the top pressure spring 42, the spring limiting part 43, the spring limiting step 44, the top fixing part 5, the water inlet 51, the water distribution part 6, the water distribution positioning part 61, the water distribution notch 62, the first sealing surface 63, the oblique flow guide type brush holder driving structure 7, the oblique flow guide seat 71, the oblique flow guide strip 711, the oblique flow guide channel 712, the impeller seat 72, the oblique blade 721, the water through hole 722, the reverse rotation anti-blocking type driving structure 8, the arc surface 81, the limiting step 82, the drainage protrusion 83, the positioning hole 84, the positioning column 85, the drainage valve 9, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides a mechanism is washed in automatic scraping of reversible anticreep formula of leading filter, includes that the setting has filter core body (2) of filter screen in filter casing (1) and circumference, filter core body (2) circumference outside activity cover be equipped with have scrape brush carrier body (3) of washing strip (31), its characterized in that, filter core body (2) upper end be connected with central play water spare (4), central play water spare (4) circumference outside cover be equipped with top mounting (5) just top mounting (5) circumference outside cover be equipped with water distribution spare (6), water distribution spare (6) circumference be located between top mounting (5) and filter casing (1), just water distribution spare (6) and brush carrier body (3) between be equipped with and make brush carrier body (3) for filter core body (2) circumferential direction's slant formula brush carrier drive structure (7), the lower end of the brush frame body (3) is connected with a reverse anti-blocking type driving structure (8) which is blocked when the brush frame body (3) rotates in the circumferential direction and can drive the brush frame body (3) to rotate in the reverse direction.

2. A reversible anti-seize automatic scraping mechanism of a pre-filter as claimed in claim 1, wherein the filter housing (1) has a blowoff valve (9) at its lower end which can rotate circumferentially, and the reversible anti-seize driving structure (8) is provided between the blowoff valve (9) and the brush holder body (3).

3. The automatic scraping and washing mechanism of the reversible anti-blocking type of the pre-filter according to claim 2, characterized in that the reverse anti-blocking type driving structure (8) comprises two arc-shaped surfaces (81) arranged on the lower end surface of the brush holder body (3), the two arc-shaped surfaces (81) are connected end to end, the heights of one end and the other end of the arc-shaped surfaces (81) are gradually increased, so that two limit steps (82) are formed between the two arc-shaped surfaces (81), the upper end of the blowoff valve (9) is provided with a blowoff protrusion (83) which is in contact with the arc-shaped surfaces (81) and circumferentially limited with the limit steps (82), the center of the lower end surface of the brush holder body (3) is provided with a positioning hole (84), and the upper end of the blowoff valve (9) is provided with a positioning column (85) movably inserted into the positioning hole (84).

4. The reversible anti-blocking automatic scraping mechanism of the pre-filter as claimed in claim 1, 2 or 3, wherein the lower end of the central water outlet member (4) is connected with the upper end of the filter element body (2) in a clamping way through a plurality of buckles (41), and the inside of the central water outlet member (4) is communicated with the inside of the filter element body (2).

5. The reversible anti-blocking automatic scraping mechanism of the pre-filter according to claim 4, wherein the top fixing member (5) is cylindrical and has a plurality of water inlet holes (51) on the circumferential outer side, the water distribution member (6) has a plurality of water distribution positioning portions (61) located on the circumferential periphery of the top fixing member (5), a water distribution gap (62) corresponding to the water inlet hole (51) is formed between two adjacent water distribution positioning portions (61), and the upper end of the water distribution positioning portion (61) is circumferentially positioned with the circumferential inner side of the filter housing (1) and/or the circumferential outer side of the top fixing member (5) through a concave-convex positioning structure.

6. The automatic scraping mechanism of the pre-filter with the reversible anti-jamming function according to claim 4 is characterized in that the lower end of the water distributing member (6) is provided with a first sealing surface (63), the first sealing surface (63) abuts against a second sealing surface (32) at the upper end of the brush frame body (3), and an elastic pressing mechanism is arranged between the central water outlet member (4) and the water distributing member (6).

7. The automatic scraping and washing mechanism of the pre-filter with the reversible anti-jamming function as claimed in claim 6, wherein the elastic jacking mechanism comprises a jacking spring (42) sleeved on the circumferential outer side of the central water outlet member (4), the circumferential outer side of the upper end of the central water outlet member (4) is provided with a plurality of spring limiting parts (43) abutting against one end of the jacking spring (42), and the other end of the jacking spring (42) abuts against the spring limiting step (44) on the circumferential inner side of the water distribution member (6).

8. The reversible anti-blocking automatic scraping mechanism of the pre-filter according to claim 6, wherein the inclined flow guiding type brush holder driving structure (7) comprises an inclined flow guiding seat (71) arranged at the lower end of the water distribution member (6) and contacted with the upper end of the filter element body (2), and the inclined flow guiding seat (71) is inserted into the circumferential inner side of the upper end of the brush holder body (3) and corresponds to the impeller seat (72) formed on the circumferential inner side of the upper end of the brush holder body (3).

9. The reversible anti-blocking automatic scraping mechanism of the pre-filter according to claim 8, wherein the oblique guide seat (71) comprises a plurality of oblique guide strips (711) arranged on the circumferential inner side of the lower end surface of the water distribution member (6), the oblique guide strips (711) are circumferentially and uniformly distributed by taking the center of the water distribution member (6) as a circle center, the oblique guide strips (711) are arranged in a clockwise or counterclockwise manner and extend towards an oblique direction, and an oblique guide channel (712) is formed between two adjacent guide strips.

10. The reversible anti-jamming automatic scraping mechanism of the pre-filter according to claim 9, characterized in that the impeller seat (72) comprises a plurality of inclined blades (721) formed on the inner circumferential side of the upper end of the brush frame body (3) and evenly distributed, the inclined blades (721) correspond to the oblique guide channel (712), the outer circumferential side of the brush frame body (3) is provided with a plurality of water through holes (722), and each water through hole (722) is respectively positioned between the lower ends of two adjacent inclined blades (721).

Images