CN113144707A - Multi-layer filtering system and front-back flushing clean prefilter - Google Patents
Multi-layer filtering system and front-back flushing clean prefilter Download PDFInfo
- Publication number
- CN113144707A CN113144707A CN202110447404.5A CN202110447404A CN113144707A CN 113144707 A CN113144707 A CN 113144707A CN 202110447404 A CN202110447404 A CN 202110447404A CN 113144707 A CN113144707 A CN 113144707A
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- fixedly connected
- filter
- valve body
- fixed valve
- filtration system
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- 238000001914 filtration Methods 0.000 title claims abstract description 52
- 238000011045 prefiltration Methods 0.000 title claims description 25
- 238000011010 flushing procedure Methods 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 239000002699 waste material Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 238000007790 scraping Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 238000004140 cleaning Methods 0.000 abstract description 11
- 238000005406 washing Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 230000007306 turnover Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000243686 Eisenia fetida Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
Abstract
The invention relates to a multilayer filtering system and a front filter cleaned by forward and backward washing, which comprises a fixed valve body, wherein the top of the fixed valve body is provided with a control device, the inside of the control device is provided with a limiting block, the inside of the control device is fixedly connected with a rotating bearing, the inside of the rotating bearing is fixedly connected with a connecting rod, the outside of the connecting rod is fixedly connected with a locking clamping ring, and the bottom of the connecting rod is fixedly connected with a forward and backward conversion device. This multilayer filtration system and positive and negative clear leading filter that washes drives positive and negative conversion equipment at fixed valve body internal rotation through the pulling connecting rod, changes the position of business turn over water, thereby the water of intaking mouth directly pours into filterable inside into, makes it to wash the filter equipment surface through rivers, reaches the abluent effect of recoil, will strike the harmful substance that will adhere to on the surface, makes it accomplish self-cleaning's effect.
Description
Technical Field
The invention relates to the technical field of prefilters, in particular to a multilayer filtering system and a prefilter cleaned by positive and negative flushing.
Background
The pre-filter is the first coarse filter equipment for the whole house water, can filter the large granular substances such as silt, rust, worm eggs and red worms in the tap water, is generally arranged at the front end of a pipeline, is named as a 'pre' two-character, and 'filters' refers to the basic principle of the equipment.
People are to quality of life's improvement, pay more attention to the material that relies on, water commonly used in the life, previously we all are direct use, it just uses to filter the back now, prefilter is also born consequently, but current prefilter has the single filtration, unable fine carry out effective treatment to the water source, can't guarantee safe in utilization, and the washing effect of device self is relatively poor, can't satisfy self-cleaning's effect, the device is not cleared up for a long time and also carries out secondary pollution to the water source, thereby lead to the inconvenient use of prefilter, the availability factor and the result of use of prefilter have been reduced, so propose multilayer filtration system and positive and negative clean prefilter and solve the problem that the aforesaid provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a multi-layer filtering system and a front filter capable of being cleaned by positive and negative flushing, which have the advantages of multiple filtering, positive and negative cleaning and the like, and solves the problems that the existing front filter cannot effectively treat a water source and ensure the use safety after single filtering, the washing effect of the device is poor, the automatic cleaning effect cannot be met, the device cannot clean for a long time and also secondarily pollute the water source, so that the front filter is inconvenient to use, and the use efficiency and the use effect of the front filter are reduced.
(II) technical scheme
The technical scheme for solving the technical problems is as follows: the multilayer filtering system and the forward and backward washing and cleaning prefilter comprise a fixed valve body, wherein a control device is arranged at the top of the fixed valve body, a limiting block is arranged inside the control device, a rotating bearing is fixedly connected inside the control device, a connecting rod is fixedly connected inside the rotating bearing, a locking collar is fixedly connected outside the connecting rod, a forward and backward conversion device is fixedly connected at the bottom of the connecting rod, a water delivery pipe is fixedly connected at the bottom of the forward and backward conversion device, a movable bearing is arranged outside the water delivery pipe, a sealing ring is fixedly connected outside the water delivery pipe, a high-efficiency filter screen is arranged outside the sealing ring, a primary filter screen is arranged outside the high-efficiency filter screen, a bottom support plate is arranged at the bottom of the primary filter screen, and filtering devices are fixedly connected on the left side and the right side of the bottom support plate, the filter device is characterized in that the inner walls of two sides of the filter device are fixedly connected with filter scrapers, the bottom of the filter device is in threaded connection with a waste liquid discharge pipe, the outside of the waste liquid discharge pipe is fixedly connected with locking threads, the top of the locking threads is provided with a sealing isolation ring, and the outside of the waste liquid discharge pipe is provided with a control valve.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the left side fixedly connected with water installations of fixed valve body, water installations's inside threaded connection has the rotation screw thread.
Further, the inside fixedly connected with inlet tube of rotation screw thread, fixed valve body right side fixedly connected with water outlet device.
Furthermore, the internal thread of the water outlet device is connected with a connecting thread, and the internal part of the connecting thread is fixedly connected with a water outlet pipe.
Further, the top of connecting rod fixedly connected with is rotatory cap, filter equipment's outside swing joint has the connection mount.
Further, the bottom of the fixed valve body is fixedly connected with a connecting and fixing device, and the inner thread of the connecting and fixing device is connected with a fixing thread.
Further, the inside fixedly connected with inside of high efficiency filter screen supports, filter equipment's front is provided with the observation window.
Further, the rotating cap is a rubber plastic cover, and the filter scraping sheet is movably connected with the primary filter screen.
Further, a mounting hole is formed in the top of the fixed valve body, and the control device penetrates through the mounting hole and extends to the inside of the fixed valve body.
(III) advantageous effects
Compared with the prior art, the invention provides a multi-layer filtering system and a front filter capable of being washed and cleaned in a front-back mode, and the multi-layer filtering system has the following beneficial effects:
1. this multilayer filtration system and positive and negative clear leading filter that washes drives positive and negative conversion equipment at fixed valve body internal rotation through the pulling connecting rod, changes the position of business turn over water, thereby the water of intaking mouth directly pours into filterable inside into, makes it to wash the filter equipment surface through rivers, reaches the abluent effect of recoil, will strike the harmful substance that will adhere to on the surface, makes it accomplish self-cleaning's effect.
2. This multi-layer filtering system and positive and negative clean prefilter that washes carry out preliminary purification to the water that flows in through primary filter screen, purify the back that finishes, carry out final treatment through high-efficient filter screen, make it can reach the rank of normal use, and purification rate is fast, and is effectual, simple structure facilitates the use.
Drawings
FIG. 1 is a cross-sectional view of a multi-layer filtration system and a front-loading clean prefilter construction according to the present invention;
FIG. 2 is a front view of a multi-layer filtration system and a front-to-back flush clean pre-filter arrangement according to the present invention;
FIG. 3 is an enlarged view of the multi-layer filtration system and the front-to-back flushing clean prefilter of the present invention at point A.
In the figure: the device comprises a fixed valve body 1, a water inlet device 2, a rotating thread 201, a water inlet pipe 202, a water outlet device 203, a connecting thread 204, a water outlet pipe 205, a control device 3, a 301 limiting block, a 302 rotating bearing, a 303 connecting rod, a 304 locking clamping ring, a 305 rotating cap, a 4 forward and reverse conversion device, a 5 water conveying pipe, a 6 movable bearing, a 7 sealing ring, an 8 connecting and fixing device, a 801 fixing thread, an 802 filtering device, a 803 bottom supporting plate, a 804 primary filtering net, a 805 efficient filtering net, 806 internal support, 807 filtering scraping blades, a 9 locking thread, a 901 waste liquid discharge pipe, a 902 sealing and isolating ring, a 903 control valve and a 10 connecting and fixing frame.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the multi-layer filtering system and the front filter for forward and backward washing and cleaning in the present embodiment includes a fixed valve body 1, a water inlet device 2 is fixedly installed on the left side of the fixed valve body 1, a threaded hole matched with the external thread of the rotating thread 201 is formed inside the water inlet device 2, the water inlet device 2 is in threaded connection with the rotating thread 201 through the threaded hole, a water inlet pipe 202 is fixedly connected inside the rotating thread 201, a water outlet device 203 is fixedly installed on the right side of the fixed valve body 1, a threaded groove matched with the external thread of the connecting thread 204 is formed inside the water outlet device 203, the water outlet device 203 is in threaded connection with the connecting thread 204 through the threaded groove, a water outlet pipe 205 is fixedly connected inside the connecting thread 204, a control device 3 is fixedly connected to the top of the fixed valve body 1, a mounting hole is formed in the top of the fixed valve body 1, the control device 3, the inner walls of the left side and the right side of the control device 3 are fixedly connected with limit blocks 301, the inside of the control device 3 is fixedly provided with a rotating bearing 302, the inside of the rotating bearing 302 is fixedly connected with a connecting rod 303, the rotating bearing 302 comprises an inner ring, a rolling ball and an outer ring, the outer ring of the rotating bearing 302 is fixedly connected with the control device 3, the inner ring of the rotating bearing 302 is fixedly connected with the connecting rod 303, the top of the connecting rod 303 is fixedly connected with a rotating cap 305, the rotating cap 305 is a rubber plastic cover, the outside of the connecting rod 303 is fixedly connected with a locking collar 304, the bottom of the connecting rod 303 is fixedly connected with a forward and reverse conversion device 4, the left side of the forward and reverse conversion device 4 is provided with a water flowing hole, the bottom of the forward and reverse conversion device 4 is fixedly connected with a water conveying pipe 5, the, the outside of the conduit pipe 5 is fixedly provided with a movable bearing 6, the lower side of the outside movable bearing 6 of the conduit pipe 5 is fixedly provided with a sealing ring 7, the bottom of the fixed valve body 1 is fixedly connected with a connecting and fixing device 8, the inner thread of the connecting and fixing device 8 is connected with a fixed thread 801, the inside of the fixing device 8 is provided with a thread opening matched with the fixed thread 801, the fixing device 8 is in threaded connection with the fixed thread 801 through the thread opening, the outside of the sealing ring 7 is clamped with a high-efficiency filter screen 805, the inside of the high-efficiency filter screen 805 is fixedly connected with an inner support 806, the outside of the high-efficiency filter screen 805 is sleeved with a primary filter chamber 804, the filter holes inside the primary filter chamber 804 are larger than the filter holes on the high-efficiency filter screen 805, the bottom of the primary filter screen 804 is movably connected with a bottom support plate 803, the inside of the support plate 803 is provided with water guide holes, the left side and the right side of the bottom support plate 803 are both fixedly connected with filter devices 802, filter equipment 802's positive fixed mounting has the observation window, the equal fixedly connected with of filter equipment 802's both sides inner wall filters doctor-bar 807, filter doctor-bar 807 and primary filter screen 804 swing joint, filter equipment 802's bottom threaded connection has waste liquid discharge pipe 901, the connecting hole has been seted up to filter equipment 802's bottom, waste liquid discharge pipe 901 runs through and extends to filter equipment 802's inside through the connecting hole, and utilize locking screw thread 9 to carry out effective fixed, waste liquid discharge pipe 901's outside fixedly connected with locking screw thread 9, locking screw thread 9's top swing joint has sealed cage 902, waste liquid discharge pipe 901's outside fixedly connected with control valve 903, filter equipment 802's outside cover is equipped with connection mount 10, connect the inside fixedly connected with protection foam-rubber cushion of mount 10.
The working principle of the above embodiment is as follows:
1) the water inlet device 2, the rotating thread 201, the water inlet pipe 202, the water outlet device 203, the connecting thread 204 and the water outlet pipe 205 are mounted on the fixed valve body 1, so that the fixed valve body 1 can be conveniently utilized to effectively fix and connect the whole structure, the normal operation of the whole structure is ensured, the whole structure can smoothly operate, the rotating thread 201 is used for effectively connecting the water inlet pipe 202 with the water inlet device 2, the accidental falling off in the use process is prevented, the connection reliability of the device is ensured, the water outlet device 203 and the water outlet pipe 205 are effectively connected and fixed correspondingly to the connecting thread 204, the use looseness is prevented, the mounting performance of the device is further improved, and the structure can be rapidly mounted;
2) the control device 3, the limiting block 301, the rotating bearing 302, the connecting rod 303, the locking collar 304 and the rotating cap 305 are mounted on the fixed valve body 1, so that the control device 3 can be conveniently used for effectively and fixedly mounting the whole structure, the normal use of the structure is ensured, the mutual interference is avoided, the limiting block 301 and the locking collar 304 are constrained mutually, the situation that the connecting rod 303 is excessively shaken and accidentally rotated is prevented, the device can withstand the impact of water flow, the rotating bearing 302 can conveniently adjust the forward and reverse conversion device 4, the purpose that the filter element of the whole device can be conveniently washed forward and reversely to be cleaned is achieved, and the rotating cap 305 is convenient for operators to use, and the external appearance and experience are improved;
3) the forward and reverse conversion device 4, the water delivery pipe 5, the movable bearing 6 and the sealing ring 7 are mounted on the fixed valve body 1, so that water at a water inlet can be conveniently and directly collected into the filtering device 802 by rotating the forward and reverse conversion device 4, harmful substances attached to the surface of a filter are washed, secondary pollution of the substances to a water source is avoided, the water delivery pipe 5 is used for conveying purified water flow out and also has the function of carrying back flushing, the movable bearing 6 is convenient to rotate, the overall controllability is improved, the sealing ring 7 is used for protecting the movable bearing 6, the service life of the bearing is prolonged, and the cleaning effect of the device is further ensured;
4) the connection fixing device 8, the fixing thread 801, the filtering device 802, the bottom supporting plate 803, the primary filtering net 804, the high-efficiency filtering net 805, the internal support 806 and the filtering scraping piece 807 are arranged on the fixed valve body 1, so that the filtering device 802 can be conveniently connected through the fixing thread 801 by using the connection fixing device 8, the threaded connection is convenient, the use is reliable, the threaded connection is rapid, the assembly and the disassembly are convenient, the cleaning is convenient, the bottom supporting plate 803 can effectively support the filtering device to prevent the filtering device from being damaged due to the overlarge internal pressure, the primary filtering net 804 can preliminarily purify a water source to isolate larger particles, the high-efficiency filtering net 805 can adsorb floating objects in water, the overall purification effect is ensured, the water source can be integrally filtered through twice purification, the use safety is ensured, the use quality is improved, and the internal support 806 can support the inside of the filter, the structure is ensured to be reliable and stable, the service life of the whole body is further prolonged, accidents are avoided, the filtering scraping piece 807 effectively scrapes the outside of the filtering device, larger particles are removed, and the whole body can normally run;
5) by installing the locking screw thread 9, the waste liquid discharge pipe 901, the sealing isolation ring 902, the control valve 903 and the connecting and fixing frame 10 on the filtering device 802, the waste liquid discharge pipe 901 and the filtering device 802 can be conveniently and effectively connected by the locking screw thread 9, the integral connection is ensured to be reliable, the control valve 903 plays a role in controlling the discharge of waste water, the integral inside is ensured to be clean and tidy, the sealing isolation ring 902 plays a role in preventing the leakage of water liquid, the sealing reliability of the device is ensured, the connecting and fixing frame 10 plays a role in convenient installation, the integral structure can be effectively fixed, the integral structure is simple, the use is convenient, the problems that the existing preposed filter has single filtration, the effective treatment of a water source cannot be well carried out, the use safety cannot be ensured, the washing effect of the device per se is poor, the automatic cleaning effect cannot be met, and the device can carry out secondary pollution on the water source without cleaning for a long time are solved, thereby causing the inconvenient use of the pre-filter and reducing the use efficiency and the use effect of the pre-filter.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. Multilayer filtration system and positive and negative clear prefilter that washes, including fixed valve body (1), its characterized in that: the top of the fixed valve body (1) is provided with a control device (3), the inside of the control device (3) is provided with a limiting block (301), the inside of the control device (3) is fixedly connected with a rotating bearing (302), the inside of the rotating bearing (302) is fixedly connected with a connecting rod (303), the outside of the connecting rod (303) is fixedly connected with a locking collar (304), the bottom of the connecting rod (303) is fixedly connected with a forward and reverse conversion device (4), the bottom of the forward and reverse conversion device (4) is fixedly connected with a water pipe (5), the outside of the water pipe (5) is provided with a movable bearing (6), the outside of the water pipe (5) is fixedly connected with a sealing ring (7), the outside of the sealing ring (7) is provided with a high-efficiency filter screen (805), the outside of the high-efficiency filter screen (805) is provided with a primary filter (804), the bottom of the primary filter screen (804) is provided with a bottom supporting plate (803), the left side and the right side of the bottom supporting plate (803) are fixedly connected with a filtering device (802), the inner walls of the two sides of the filtering device (802) are fixedly connected with filtering scrapers (807), the bottom of the filtering device (802) is in threaded connection with a waste liquid discharge pipe (901), the outside of the waste liquid discharge pipe (901) is fixedly connected with locking threads (9), the top of the locking threads (9) is provided with a sealing isolation ring (902), and the outside of the waste liquid discharge pipe (901) is provided with a control valve (903).
2. The multi-layer filtration system and front-to-back flushing clean pre-filter of claim 1, wherein: the left side fixedly connected with water installations (2) of fixed valve body (1), the internal thread of water installations (2) is connected with and rotates screw thread (201).
3. The multi-layer filtration system and front-to-back flushing clean pre-filter of claim 2, wherein: the inside fixedly connected with inlet tube (202) of rotation screw thread (201), fixed valve body (1) right side fixedly connected with goes out water installation (203).
4. The multi-layer filtration system and front-to-back flushing clean pre-filter of claim 3, wherein: the internal thread of the water outlet device (203) is connected with a connecting thread (204), and the internal part of the connecting thread (204) is fixedly connected with a water outlet pipe (205).
5. The multi-layer filtration system and front-to-back flushing clean pre-filter of claim 1, wherein: the top of connecting rod (303) fixedly connected with is rotatory cap (305), the outside swing joint of filter equipment (802) has connection mount (10).
6. The multi-layer filtration system and front-to-back flushing clean pre-filter of claim 1, wherein: the bottom of the fixed valve body (1) is fixedly connected with a connecting and fixing device (8), and the internal thread of the connecting and fixing device (8) is connected with a fixing thread (801).
7. The multi-layer filtration system and front-to-back flushing clean pre-filter of claim 1, wherein: the inside fixedly connected with inside support (806) of high efficiency filter screen (805), the front of filter equipment (802) is provided with the observation window.
8. The multi-layer filtration system and front-to-back flushing clean pre-filter of claim 1, wherein: the rotary cap (305) is a rubber plastic cover, and the filter scraping blade (807) is movably connected with the primary filter screen (804).
9. The multi-layer filtration system and front-to-back flushing clean pre-filter of claim 1, wherein: the top of the fixed valve body (1) is provided with a mounting hole, and the control device (3) penetrates through the mounting hole and extends to the inside of the fixed valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110447404.5A CN113144707A (en) | 2021-04-25 | 2021-04-25 | Multi-layer filtering system and front-back flushing clean prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110447404.5A CN113144707A (en) | 2021-04-25 | 2021-04-25 | Multi-layer filtering system and front-back flushing clean prefilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113144707A true CN113144707A (en) | 2021-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110447404.5A Withdrawn CN113144707A (en) | 2021-04-25 | 2021-04-25 | Multi-layer filtering system and front-back flushing clean prefilter |
Country Status (1)
| Country | Link |
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| CN (1) | CN113144707A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730985A (en) * | 2021-09-22 | 2021-12-03 | 南京飞婕环保科技有限公司 | Automatic abluent filter |
-
2021
- 2021-04-25 CN CN202110447404.5A patent/CN113144707A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730985A (en) * | 2021-09-22 | 2021-12-03 | 南京飞婕环保科技有限公司 | Automatic abluent filter |
| CN113730985B (en) * | 2021-09-22 | 2022-12-16 | 华盛龙环保科技(宁夏)有限公司 | Automatic abluent filter |
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Application publication date: 20210723 |
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| WW01 | Invention patent application withdrawn after publication |