CN210583914U - Prefilter of multilayer filter screen - Google Patents
Prefilter of multilayer filter screen Download PDFInfo
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- CN210583914U CN210583914U CN201921343651.5U CN201921343651U CN210583914U CN 210583914 U CN210583914 U CN 210583914U CN 201921343651 U CN201921343651 U CN 201921343651U CN 210583914 U CN210583914 U CN 210583914U
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Abstract
The utility model discloses a prefilter of multilayer filter screen, including casing and cap, the casing adopts to dismantle with the cap and is connected, the cap top is equipped with the delivery port, the casing side is equipped with the water inlet, the inside filter equipment that is equipped with of casing, filter equipment includes first filter mantle and second filter mantle, second filter mantle periphery is located to first filter mantle cover, still including cleaning device, cleaning device includes a plurality of connecting rods, first annular doctor-bar, second annular doctor-bar and annular push pedal, first annular doctor-bar sets up in first filter mantle periphery, second annular doctor-bar sets up in second filter mantle periphery, the annular push pedal sets up in the cap top, first annular doctor-bar and second annular doctor-bar all are connected with the annular push pedal through the connecting rod, connecting rod and cap sliding connection. The utility model provides a prefilter of multilayer filter screen can clear up the filter screen surface to when using for a long time, improve prefilter's filter effect.
Description
Technical Field
The utility model relates to a prefilter technical field especially relates to a prefilter of multilayer filter screen.
Background
The filter is an indispensable device on a medium conveying pipeline and is usually arranged at the inlet end of a pressure reducing valve, a pressure relief valve, a constant water level valve and other equipment of a squaring filter. After water to be treated passes through the filter cartridge of the filter screen, impurities in the water are blocked in the filter cartridge, and the filtered water is discharged out of the filter for people to use.
The filter comprises a liquid inlet pipe, an end cover, a liquid outlet pipe, a filter element support, a filter cylinder, a spiral filter screen and a filter element, wherein the end cover is fixedly arranged on an opening of the filter cylinder, the liquid inlet pipe and the liquid outlet pipe are arranged on one side of the filter cylinder, the liquid inlet pipe is arranged above the liquid outlet pipe, the filter element is fixedly arranged in the filter cylinder through the filter element support, and the spiral filter screen is arranged in the filter element.
In the structure, the spiral filter screen is arranged in the filter element, so that the filter screen can be arranged layer by layer in the filter cylinder, the filtering times are increased, and the filtering effect of the prefilter is improved. However, the structure is not provided with a cleaning device to clean the surface of the filter screen, so that the filtering effect of the filter screen is reduced in the long-term use process of the prefilter. It is desirable to be able to clean the surface of the multi-layer filter web of the pre-filter.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prefilter of multilayer filter screen can clear up the filter screen surface to when using for a long time, improve prefilter's filter effect.
The utility model discloses a technical scheme that prefilter of multilayer filter screen adopted is:
a prefilter of a multilayer filter screen comprises a shell and a shell cover, wherein the shell and the shell cover are detachably connected, a water outlet is arranged at the top of the shell cover, a water inlet is arranged on the side surface of the shell, a filtering device is arranged in the shell and comprises a first filtering cover and a second filtering cover, the first filtering cover and the second filtering cover are arranged on one side of the shell cover close to the shell, the first filtering cover is arranged on the periphery of the second filtering cover, the water outlet is communicated with the inner cavity of the second filtering cover, the prefilter further comprises a cleaning device, the cleaning device comprises a plurality of connecting rods, a first annular scraping blade, a second annular scraping blade and an annular push plate, the first annular scraping blade is arranged on the periphery of the first filtering cover, the second annular scraping blade is arranged on the periphery of the second filtering cover, and the annular push plate is arranged above the shell cover corresponding to the first annular scraping, the first annular scraping blade and the second annular scraping blade are connected with the annular push plate through connecting rods, the connecting rods penetrate through the shell cover, and the connecting rods are connected with the shell cover in a sliding mode.
Preferably, the bottom surface of the shell is of a circular arc surface structure.
As the preferred scheme, the bottom of the shell is provided with a sewage draining outlet which is arranged in the center of the bottom of the shell.
As the preferred scheme, the contact part of the shell cover and the connecting rod is provided with a sealing ring, and the sealing ring is in interference fit with the connecting rod and the shell cover.
Preferably, a handle is arranged on one side, away from the shell cover, of the annular push plate and used for pulling the annular push plate.
Preferably, the first filter cover, the second filter cover, the first annular scraper and the second annular scraper are all arranged along the same axis.
The utility model discloses a prefilter of multilayer filter screen's beneficial effect is: the water inlet on the side of the shell is filled with water flow to be filtered, the water enters the shell and sequentially passes through the first filter cover and the second filter cover of the filter device, enters the inner cavity of the second filter cover and is discharged out of the shell through the water outlet at the top of the shell cover, and therefore the whole filtering process is completed. Through a first annular scraping blade arranged on the periphery of the first filter cover and a second annular scraping blade arranged on the periphery of the second filter cover, the surfaces of the first filter housing and the second filter housing are cleaned, the first annular scraping blade and the second annular scraping blade are connected with the annular push plate through connecting rods, the connecting rods penetrate through the housing cover and are connected with the housing cover in a sliding manner, people push the annular push plate up and down, thereby the connecting rod moves up and down on the surface of the shell cover, the other end of the connecting rod pushes the first annular scraping blade and the second annular scraping blade in the shell to move up and down together, the first annular scraping blade and the second annular scraping blade scrape impurities on the surfaces of the first filter housing and the second filter housing respectively, therefore, the filtering effect of the first filtering cover and the second filtering cover is not influenced by impurities, and the filtering effect of the prefilter is improved when the prefilter is used for a long time.
Drawings
Fig. 1 is an exploded view of the pre-filter of the multi-layer filter net of the present invention.
Fig. 2 is a schematic structural diagram of the cleaning device of the pre-filter of the multi-layer filter screen of the present invention.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
referring to fig. 1, a prefilter with multiple layers of filter screens includes a housing 10 and a housing cover 20, the housing 10 is detachably connected to the housing cover 20, a water outlet 21 is disposed at the top of the housing cover 20, a water inlet 11 is disposed at the side of the housing 10, and a filter device is disposed inside the housing 10.
The filtering device comprises a first filtering cover 31 and a second filtering cover 32, the first filtering cover 31 and the second filtering cover 32 are arranged on one side, close to the shell 10, of the shell cover 20, the first filtering cover 31 covers the periphery of the second filtering cover 32, and the water outlet 21 is communicated with the inner cavity of the second filtering cover 32.
The mounting table 22 is arranged on one side, close to the casing 10, of the casing cover 20, the mounting table 22 is stepped, threads are arranged on the surface of the mounting table 22, and the first filter housing 31 and the second filter housing 32 are sequentially in threaded connection with the mounting table 22, so that the mounting table 22 is detachably connected with the first filter housing 31 and the second filter housing 32, and people can replace the first filter housing 31 and the second filter housing 32 conveniently.
The water inlet 11 on the side of the shell 10 is filled with water flow to be filtered, the water enters the shell 10 and sequentially passes through the first filter housing 31 and the second filter housing 32 of the filter device, enters the inner cavity of the second filter housing 32, and is discharged out of the shell 10 through the water outlet 21 on the top of the shell cover 20, so that the whole filtering process is completed.
Referring to fig. 1 and 2, the cleaning device 40 further includes a plurality of connecting rods 41, a first annular wiper 42, a second annular wiper 43, and an annular push plate 44, the first annular wiper 42 is disposed on the periphery of the first filter housing 31, the second annular wiper 43 is disposed on the periphery of the second filter housing 32, the annular push plate 44 is disposed above the housing cover 20 corresponding to the first annular wiper 42 and the second annular wiper 43, the first filter housing 31, the second filter housing 32, the first annular wiper and the second annular wiper are disposed along the same axis, the first annular wiper 42 and the second annular wiper 43 are connected to the annular push plate 44 through the connecting rods 41, the connecting rods 41 pass through the housing cover 20, and the connecting rods 41 are slidably connected to the housing cover 20.
The surfaces of the first filter housing 31 and the second filter housing 32 are cleaned by a first annular scraping blade 42 arranged on the periphery of the first filter housing 31 and a second annular scraping blade 43 arranged on the periphery of the second filter housing 32, the first annular scraping blade 42 and the second annular scraping blade 43 are both connected with an annular push plate 44 through a connecting rod 41, the connecting rod 41 penetrates through the housing cover 20, the connecting rod 41 is connected with the housing cover 20 in a sliding manner, people push the annular push plate 44 up and down, so that the connecting rod 41 moves up and down on the surface of the housing cover 20, the other end of the connecting rod 41 pushes the first annular scraping blade 42 and the second annular scraping blade 43 in the housing 10 to move up and down together, the first annular scraping blade 42 and the second annular scraping blade 43 scrape the surface impurities of the first filter housing 31 and the second filter housing 32 respectively, and the filtering effect of the first filter housing 31 and the second filter housing 32 is not influenced by the impurities, the filtering effect of the prefilter is improved in long-term use.
In the above-described embodiment, a sealing ring (not shown) is provided at a contact portion between housing cover 20 and tie rod 41, and the sealing ring is in interference fit with both tie rod 41 and housing cover 20, so that water in housing 10 can be prevented from leaking between housing cover 20 and tie rod 41. And when people do not clear up first filter housing 31 and second filter housing 32 surface, can laminate annular push pedal 44 and cap 20 to further block cap 20, prevent the condition of seepage and take place.
The handle 45 is arranged on one side, away from the shell cover 20, of the annular push plate 44, and the handle 45 is used for pulling the annular push plate 44, so that people can conveniently push the annular push plate 44 up and down by using the handle 45.
In the above scheme, the bottom surface of the shell 10 is of an arc surface structure, the bottom of the shell 10 is provided with the drain outlet 12, and the drain outlet 12 is arranged in the center of the bottom of the shell 10. Impurity after first filter mantle 31 and second filter mantle 32 carry out the separation with impurity to and utilize the impurity that cleaning device 40 scraped off first filter mantle 31 and second filter mantle 32 surface, deposit in casing 10 bottom, thereby utilize drain 12 to discharge the casing 10 with the magazine, avoid piling up in casing 10, and casing 10 bottom surface is the arc surface structure, can collect drain 12 department with impurity better.
The utility model provides a prefilter of multilayer filter screen lets in the water flow that needs to filter at the water inlet of casing side, and water enters into inside first filter mantle and the second filter mantle that passes filter equipment in proper order of casing, enters into the inner chamber of second filter mantle, and the delivery port discharge casing at rethread shell lid top to accomplish whole filtering process. Through a first annular scraping blade arranged on the periphery of the first filter cover and a second annular scraping blade arranged on the periphery of the second filter cover, the surfaces of the first filter housing and the second filter housing are cleaned, the first annular scraping blade and the second annular scraping blade are connected with the annular push plate through connecting rods, the connecting rods penetrate through the housing cover and are connected with the housing cover in a sliding manner, people push the annular push plate up and down, thereby the connecting rod moves up and down on the surface of the shell cover, the other end of the connecting rod pushes the first annular scraping blade and the second annular scraping blade in the shell to move up and down together, the first annular scraping blade and the second annular scraping blade scrape impurities on the surfaces of the first filter housing and the second filter housing respectively, therefore, the filtering effect of the first filtering cover and the second filtering cover is not influenced by impurities, and the filtering effect of the prefilter is improved when the prefilter is used for a long time.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A prefilter of a multilayer filter screen comprises a shell and a shell cover, wherein the shell and the shell cover are detachably connected, the top of the shell cover is provided with a water outlet, the side surface of the shell is provided with a water inlet, and the shell is internally provided with a filtering device which is characterized by comprising a first filtering cover and a second filtering cover, the first filtering cover and the second filtering cover are arranged on one side of the shell cover close to the shell, the first filtering cover is arranged at the periphery of the second filtering cover, the water outlet is communicated with the inner cavity of the second filtering cover, the prefilter further comprises a cleaning device which comprises a plurality of connecting rods, a first annular doctor blade, a second annular doctor blade and an annular push plate, the first annular doctor blade is arranged at the periphery of the first filtering cover, the second annular doctor blade is arranged at the periphery of the second filtering cover, and the annular push plate is arranged above the shell cover corresponding to the first annular doctor blade and, the first annular scraping blade and the second annular scraping blade are connected with the annular push plate through connecting rods, the connecting rods penetrate through the shell cover, and the connecting rods are connected with the shell cover in a sliding mode.
2. The prefilter of a multilayer filter screen of claim 1 wherein said bottom surface of said housing is of arcuate configuration.
3. The prefilter of a multilayer filter screen as claimed in claim 2 wherein a drain outlet is provided in the bottom of the housing, said drain outlet being centrally located in the bottom of the housing.
4. The prefilter of a multilayer filter screen as claimed in claim 1 wherein the contact part of said cover with said connecting rod is provided with a sealing ring, and said sealing ring is in interference fit with said connecting rod and said cover.
5. The prefilter of a multilayer filter screen according to claim 4 wherein a handle is provided on the side of said annular push plate remote from said housing cover, said handle being adapted to pull said annular push plate.
6. The prefilter of a multi-layer filter web of any one of claims 1 to 5 wherein said first filter sock, said second filter sock, said first annular scraper, and said second annular scraper are all disposed along the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921343651.5U CN210583914U (en) | 2019-08-19 | 2019-08-19 | Prefilter of multilayer filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921343651.5U CN210583914U (en) | 2019-08-19 | 2019-08-19 | Prefilter of multilayer filter screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210583914U true CN210583914U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921343651.5U Active CN210583914U (en) | 2019-08-19 | 2019-08-19 | Prefilter of multilayer filter screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210583914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228865A3 (en) * | 2020-07-31 | 2021-06-10 | 苏州普轮电子科技有限公司 | Water purification apparatus |
| CN115259285A (en) * | 2022-08-26 | 2022-11-01 | 徐细芝 | Water purification equipment and control method thereof |
-
2019
- 2019-08-19 CN CN201921343651.5U patent/CN210583914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228865A3 (en) * | 2020-07-31 | 2021-06-10 | 苏州普轮电子科技有限公司 | Water purification apparatus |
| CN115259285A (en) * | 2022-08-26 | 2022-11-01 | 徐细芝 | Water purification equipment and control method thereof |
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