Self-cleaning filter
Technical Field
The utility model relates to the field of filters, in particular to a self-cleaning filter.
Background
The self-cleaning filter is characterized in that a filter screen in the filter is used for intercepting solid impurities and particles in water. When the common self-cleaning filter works, sewage enters from a water inlet, is filtered by a coarse filter screen and a fine filter screen and then flows to an outlet. During the filtration process, impurities in the water gradually accumulate on the surface of the fine filter screen. The impurity layer is formed, and a pressure difference is formed between the inner side and the outer side of the fine filter screen due to the accumulation of the impurities on the inner side of the fine filter screen. When the pressure difference reaches the preset value of the system, the automatic cleaning function is started, the water supply of the system is not interrupted, the back washing valve or the blow-down valve is opened, and the sewage is discharged by the blow-down valve. Traditional self-cleaning filter only washs impurity through the brush, and the brush damages easily, and cleaning performance is not good, has impurity to remain easily, and remaining impurity gathers on the cartridge filter to lead to the equipment harm.
SUMMERY OF THE UTILITY MODEL
The utility model provides a self-cleaning filter, which solves the problem of impurity residue caused by poor cleaning effect in the prior art.
The technical scheme of the utility model is realized as follows:
the utility model provides a self-cleaning filter, includes the barrel, and the barrel both ends are equipped with the filter head, and the filter head passes through the flange and links to each other with the barrel, and the barrel upper end is provided with drive arrangement, and the lower extreme is equipped with delivery port and drain, and the inside filter screen that is equipped with of barrel, drive arrangement pass through the connecting piece and link to each other with the filter screen, and the barrel left and right sides is equipped with water inlet and drain, and the barrel outer wall is equipped with the blowdown subassembly, the blowdown subassembly includes stainless steel brush group and scraper plate subassembly, and stainless steel brush group and scraper plate subassembly all include the connecting pipe, are equipped with the recess in the connecting pipe, and the scraper plate subassembly passes through the pipeline and links to each other with the drain.
Further, stainless steel brush group includes shrouding and stainless steel brush, and the shrouding setting meets through a O type circle and recess at the connecting tube tip, the brush holder axle of stainless steel brush, and the cover is equipped with first spring on the brush handle axle, and first spring tip is equipped with the bolt.
Further, scraper plate subassembly includes the scraper and scrapes the knife shaft, and the scraper tip contacts with the filter screen, and the scraper tip is equipped with the suction nozzle, scrapes the epaxial cover of knife and establishes the second spring, scrapes the knife shaft and meets through second O type circle and recess.
Furthermore, an organic matter component is arranged at the joint of the water outlet and the filter end enclosure, and a shaft seal is arranged at the joint of the connecting piece and the filter end enclosure.
The beneficial effect that this technical scheme can produce: the scraper scrapes the impurity that is not washd by rivers on with the filter screen, and the impurity of scraping is siphoned away by the suction nozzle simultaneously, and the impurity that can not get rid of then is brushed by the stainless steel brush, and the drain that flows through scraper and stainless steel brush secondary cleaning, reaches the effect of wasing the blowdown.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic plan view of the present invention;
fig. 2 is a schematic plan view of the soil exhaust assembly.
In the figure: the device comprises a driving device 1, a filter end enclosure 2, a flange 3, a sewage discharge assembly 4, a water outlet 5, an organic matter assembly 6, a drain outlet 7, a water inlet 8, a filter screen 9, a connecting piece 10, a shaft seal 11, a sealing plate 12, a first O-shaped ring 13, a first spring 14, a stainless steel brush 15, a scraper shaft 16, a second O-shaped ring 17, a second spring 18, a scraper 19, a sewage discharge outlet 20 and a connecting pipe 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in figures 1-2, the embodiment provides a self-cleaning filter, which comprises a cylinder body, wherein filter end sockets 2 are arranged at two ends of the cylinder body, the filter end sockets 2 are connected with the cylinder body through flanges 3, a driving device 1 is arranged at the upper end of the cylinder body, the driving device 1 is a motor, a water outlet 5 and a drain outlet 7 are arranged at the lower end of the cylinder body, large granular impurities precipitated are discharged from the drain outlet 7, a filter screen 9 is arranged inside the cylinder body, the driving device 1 is connected with the filter screen 9 through a connecting piece 10, a water inlet 8 and a drain outlet 20 are arranged at the left side and the right side of the cylinder body, a sewage discharge assembly 4 is arranged on the outer wall of the cylinder body, as shown in figure 1, the right side of the cylinder body is provided with a plurality of groups of sewage discharging assemblies 4 from top to bottom, each sewage discharging assembly 4 comprises a stainless steel brush assembly and a scraper plate assembly, each stainless steel brush assembly and each scraper plate assembly comprise a connecting pipe 21, a groove is formed in each connecting pipe 21, and each scraper plate assembly is connected with a sewage outlet 20 through a pipeline.
Stainless steel brush group includes shrouding 12 and stainless steel brush 15, and shrouding 12 sets up at 21 tip of connecting pipe, and stainless steel brush 15's brush holder axle meets through first O type circle 13 and recess, and the cover is equipped with first spring 14 on the brush handle axle, and first spring 14 tip is equipped with the bolt. The first O-shaped ring 13 plays a role in sealing, and the first spring 14 plays a role in buffering, so that the stainless steel brush 15 can be always kept in contact with the outer wall of the cylindrical filter screen 9.
The scraper plate component comprises a scraper 19 and a scraper shaft 16, the end part of the scraper 19 is in contact with the filter screen 9, a suction nozzle is arranged at the end part of the scraper 19, a second spring 18 is sleeved on the scraper shaft 16, and the scraper shaft 16 is connected with the groove through a second O-shaped ring 17. The second O-ring 17 has a sealing effect so that the cleaned impurities can only enter from the suction nozzle. The second spring 18 plays a role of buffering, so that the scraper 19 can be always in contact with the outer wall of the filter screen 9 to clean the outer wall of the filter screen 9.
An organic matter component 6 is arranged at the joint of the water outlet 5 and the filter end enclosure 2, and a shaft seal 11 is arranged at the joint of the connecting piece 10 and the filter end enclosure 2. The organic assembly 6 and the shaft seal 11 both function as a seal.
The working process of the utility model is as follows: the medium flows in through filter water inlet 8, rotary filter screen 9 filters, the good water of filtration flows out by delivery port 5, impurity is kept off in the filter core outside, large granule impurity can subside to the filter bottom, discharge from drain port 7, a part of impurity can be attached to filter screen 9 surface, when needs wash filter screen 9, the motor drives the rotatory valve of opening drain 20 of filter core, impurity part on the filter screen 9 is washed by rivers, impurity on the filter screen 9 that does not wash is scraped from above the filter core by scraper 19, impurity above the filter core is siphoned away to the suction nozzle simultaneously, if there is impurity can not be got rid of, then take stainless steel brush group behind by scraper 19, brush remaining part impurity by stainless steel brush 15, outflow drain 20 reaches the effect of washing the blowdown.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.