CN219252031U - Automatic back flush filter - Google Patents

Abstract

The utility model provides an automatic back flush filter, which is used for solving the problems that the existing back flush filter is unclean in pollution discharge and a pollution discharge outlet is easy to block. The utility model provides an automatic back flush filter, including the cartridge filter, be equipped with the filter screen section of thick bamboo in the cartridge filter, the filter screen section of thick bamboo is equipped with first filter and second filter, all be equipped with the filtration pore on first filter and the second filter, first filter slides and establishes in the filter screen section of thick bamboo, and the staggered arrangement of filtration pore of two filters, be equipped with the recoil water course in the second filter, recoil water course and filtration pore intercommunication, recoil water course and the outer recoil pipe intercommunication of cartridge filter, it is equipped with the scraper blade to slide between cartridge filter and the filter screen section of thick bamboo, the scraper blade offsets with the outer wall of cartridge filter, the scraper blade lower extreme is equipped with first pneumatic cylinder, the upper end is equipped with the connecting rod, the connecting rod runs through the outer wall of cartridge filter and links to each other with the upper end of first filter, the bottom of cartridge filter is equipped with the blow off pipe. The utility model has clean backflushing sewage discharge and is not easy to block the sewage discharge outlet.

Description

Automatic back flush filter

Technical Field

The utility model relates to the technical field of filters, in particular to an automatic back flushing filter.

Background

The back flushing filter is a filter which utilizes intelligent design to automatically identify the deposition degree of impurities and automatically discharge sewage. The existing back flushing filter receives a pollution discharge signal, and then the pollution discharge valve is generally opened for pollution discharge, but as part of impurities are adsorbed on the filter screen, the impurities on the filter screen are difficult to remove only through the pollution discharge valve, so that the filter screen cannot be cleaned cleanly; because impurities are generally deposited at the bottom of the filter, the impurities are easy to accumulate clots, so that a sewage outlet is blocked, and sewage is influenced; the filter is constantly flowing in the timing back flushing pollution discharge process, but the continuous opening of the pollution discharge outlet still can influence the flow to a certain extent, so that the flow of the filter is unstable, and the normal operation of the filter is influenced.

Disclosure of Invention

The utility model provides an automatic back flush filter, which solves the problems that the existing back flush filter is unclean in pollution discharge and a pollution discharge outlet is easy to block.

The technical scheme of the utility model is realized as follows:

the utility model provides an automatic back flush filter, including the cartridge filter, be equipped with the filter screen section of thick bamboo in the cartridge filter, filter screen section of thick bamboo from the top down is equipped with first filter and second filter in proper order, all be equipped with the filtration pore on first filter and the second filter, first filter slides and establishes in the filter screen section of thick bamboo, and the staggered arrangement of filtration pore of two filters, first filter is used for plugging up the filtration pore on the second filter, be equipped with the recoil water course in the second filter, recoil water course and filtration pore intercommunication, recoil water course and the outer recoil pipe intercommunication of cartridge filter, the recoil water course is used for the bottom of recoil filter screen section of thick bamboo, slide between cartridge filter and the filter screen section of thick bamboo is equipped with the scraper blade, the scraper blade offsets with the outer wall of filter screen section of thick bamboo, the scraper blade lower extreme is equipped with first pneumatic cylinder, the upper end is equipped with the connecting rod, the connecting rod runs through the outer wall of cartridge filter and links to each other with the upper end of first filter, the bottom of cartridge filter is equipped with the recoil water course, be equipped with second pneumatic cylinder driven shutoff in the blowdown water course.

Wherein, the below of cartridge filter is equipped with cavity axle motor drive's connecting pipe, and the connecting pipe stretches into in the cartridge filter, and rotates the intercommunication with the recoil water course, and the other end of connecting pipe rotates with the recoil pipe and links to each other, is equipped with a plurality of paddles on the connecting pipe, through the connecting pipe that rotates the setting, drives the paddle and can smash the accumulational dust impurity in cartridge filter bottom, avoids impurity jam blow off pipe.

Wherein, the sprue slide is established in the blow off pipe, and the sprue rotates with the connecting pipe and offsets, and the flexible end of second pneumatic cylinder is equipped with the arc roof, and arc roof slip cap establishes on the connecting pipe, and rotates with the connecting pipe and offset, and the lower extreme of sprue links to each other with the arc roof through the spring, according to the accumulational impurity volume in cartridge filter bottom, can make the intermittent decline of sprue discharge partial impurity, can enlarge the interval time of timing back flush, avoided the blow off pipe to open the flow that influences the filter constantly, guaranteed the stability of filter filtration flow.

Wherein, be equipped with the booster pump on the recoil pipe, can improve the impact force of recoil water course rivers, be convenient for clear up the impurity that the filter screen bottom adhesion links.

Advantageous effects

According to the utility model, the movable scraping plate is arranged, impurities adsorbed on the side wall of the filter screen cylinder can be scraped, the backflushing water channel communicated with the filter holes is arranged, the filter holes on the second filter plate are closed through the first filter plate, and high-pressure water flow sprayed out of the backflushing water channel can flush out impurities adsorbed on the bottom of the filter screen cylinder, so that the filter screen can be cleaned more cleanly, the impurities in the filter are further reduced, and the backflushing cleanliness is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in FIG. 1, an automatic back flushing filter comprises a filter cartridge 1, one side of the filter cartridge 1 is provided with a water inlet pipe 2, the top of the filter cartridge 1 is provided with a water outlet pipe 12, a filter screen cylinder 6 is arranged in the filter cartridge 1, the filter screen cylinder 6 is sequentially provided with a first filter plate 9 and a second filter plate 7 from top to bottom, filter holes 11 are formed in the first filter plate 9 and the second filter plate 7 in a sliding manner, the filter holes 11 on the two filter plates are arranged in a staggered manner, a back flushing water channel 8 is formed in the second filter plate 7, the back flushing water channel 8 is communicated with the filter holes 11, the back flushing water channel 8 is communicated with a back flushing pipe 5 arranged outside the filter cartridge 1, a scraping plate 21 is slidably arranged between the filter cartridge 1 and the filter screen cylinder 6, the scraping plate 21 is in a circular ring shape, the scraping plate 21 is propped against the outer wall of the filter screen cylinder 6, the lower end of the scraping plate 21 is provided with a first hydraulic cylinder 3, the fixed end of the first hydraulic cylinder 3 is arranged below the filter cartridge 1, a connecting rod 10 is arranged at the upper end, the two ends of the connecting rod 10 are all penetrated through the outer wall of the filter cartridge 1, the other ends of the connecting rod 10 are connected with the upper end of the first filter plate 9, the bottom of the filter rod 7 is provided with a back flushing pipe 5, the bottom of the filter 1 is provided with a drain pipe 4, and a drain pipe 4 is provided with a second driving block 20.

The working process of the embodiment comprises the following steps: when the filter cartridge 1 needs to be cleaned, the first hydraulic cylinder 3 and the second hydraulic cylinder 20 are controlled to descend, the second hydraulic cylinder 20 drives the blocking block 17 to descend and open the drain pipe 4, the first hydraulic cylinder 3 drives the scraping plate 21 to descend so as to scrape impurities on the outer wall of the filter cartridge 6, meanwhile, the connecting rod drives the first filter plate 9 to descend until the first filter plate 9 is propped against the second filter plate 7, the filter holes 11 of the second filter plate 7 are blocked due to the staggered filter holes 11 of the two filter plates, the backwash pipe 5 is opened, the backwash water flow is discharged from the lower part of the filter holes 11 of the second filter plate 7 through the backwash pipe 5 and the backwash water channel 8, the bottom of the filter cartridge 6 is washed, and then the impurities scraped by the scraping plate 21 and the impurities washed by the filter holes 11 are discharged through the drain pipe 4 at the bottom of the filter cartridge 1; since the filter cartridge 1 has a large amount of impurities accumulated at the bottom, the provision of the first filter plate 9 and the second filter plate 7 can also improve the degree of filtration of water rising at the bottom of the filter cartridge 1 to some extent.

Example 2

Preferably, a connecting pipe 16 driven by a hollow shaft motor 14 is arranged below the filter cartridge 1, the connecting pipe 16 extends into the filter cartridge 1 and is in rotary communication with the backflushing water channel 8, the other end of the connecting pipe 16 is in rotary connection with the backflushing pipe 5, a plurality of paddles 15 are arranged on the connecting pipe 16, and the paddles 15 are driven to crush dust impurities accumulated at the bottom of the filter cartridge 1 through the rotary connecting pipe 16, so that the impurities are prevented from blocking the sewage pipe 4; the blocking block 17 is arranged in the sewage pipe 4 in a sliding manner, the blocking block 17 and the connecting pipe 16 are in rotary contact, an arc-shaped top plate 19 is arranged at the telescopic end of the second hydraulic cylinder 20, the arc-shaped top plate 19 is arranged on the connecting pipe 16 in a sliding manner in a sleeved manner and in rotary contact with the connecting pipe 16, the lower end of the blocking block 17 is connected with the arc-shaped top plate 19 through a spring 18, and according to the impurity amount accumulated at the bottom of the filter cartridge 1, the blocking block 17 can be intermittently lowered to discharge part of impurities, the interval time of timing back flushing can be prolonged, the influence on the flow of the filter caused by the timing continuous opening of the sewage pipe 4 is avoided, and the stability of the filtering flow of the filter is ensured; the booster pump 13 is arranged on the recoil pipe 5, so that the impact force of recoil water channel water flow can be improved, and impurities adhered to the bottom of the filter screen can be cleaned conveniently.

Other structures of this embodiment are the same as those of embodiment 1.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (4)

1. An automatic backflushing filter comprising a filter cartridge (1), characterized in that: be equipped with filter screen section of thick bamboo (6) in cartridge filter (1), filter screen section of thick bamboo (6) from the top down are equipped with first filter (9) and second filter (7) in proper order, all be equipped with filtration pore (11) on first filter (9) and second filter (7), first filter (9) slip is established in filter screen section of thick bamboo (6), and filtration pore (11) of two filters are crisscross to be set up, be equipped with recoil water course (8) in second filter (7), recoil water course (8) and filtration pore (11) intercommunication, recoil water course (8) and cartridge filter (1) are outer recoil pipe (5) intercommunication, slide between cartridge filter (1) and the cartridge filter (6) and be equipped with scraper blade (21), scraper blade (21) offsets with the outer wall of cartridge filter (6), scraper blade (21) lower extreme is equipped with first pneumatic cylinder (3), the upper end is equipped with connecting rod (10), the outer wall that connecting rod (10) run through cartridge filter (1) links to each other with the upper end of first filter (9), the bottom of cartridge filter (1) is equipped with blow off pipe (4), be equipped with in blow off pipe (4) the blow off pipe (20) and block (17) of second drive.

2. An automatic backwash filter according to claim 1 wherein: the below of cartridge filter (1) is equipped with hollow shaft motor (14) driven connecting pipe (16), and connecting pipe (16) stretch into in cartridge filter (1), and with recoil water course (8) rotation intercommunication, the other end of connecting pipe (16) rotates with recoil pipe (5) and links to each other, is equipped with a plurality of paddles (15) on connecting pipe (16).

3. An automatic backwash filter according to claim 1 or 2, wherein: the blocking block (17) is slidably arranged in the sewage draining pipe (4), the blocking block (17) is rotatably abutted against the connecting pipe (16), an arc-shaped top plate (19) is arranged at the telescopic end of the second hydraulic cylinder (20), the arc-shaped top plate (19) is slidably sleeved on the connecting pipe (16) and rotatably abutted against the connecting pipe (16), and the lower end of the blocking block (17) is connected with the arc-shaped top plate (19) through a spring (18).

4. An automatic backwash filter according to claim 1 wherein: a booster pump (13) is arranged on the back flushing pipe (5).

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