CN210993283U - Automatic back-washing rotary scraping filter - Google Patents

Automatic back-washing rotary scraping filter Download PDF

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Publication number
CN210993283U
CN210993283U CN201921693254.0U CN201921693254U CN210993283U CN 210993283 U CN210993283 U CN 210993283U CN 201921693254 U CN201921693254 U CN 201921693254U CN 210993283 U CN210993283 U CN 210993283U
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CN
China
Prior art keywords
filter
scraping
skeleton
filter screen
automatic
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Application number
CN201921693254.0U
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Chinese (zh)
Inventor
胡效军
陈志超
顾博焕
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HAINING SHUIXIANG WATER PURIFICATION EQUIPMENT CO Ltd
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HAINING SHUIXIANG WATER PURIFICATION EQUIPMENT CO Ltd
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Priority to CN201921693254.0U priority Critical patent/CN210993283U/en
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Abstract

The utility model provides an automatic back flush is scraped filter soon, including last block, filter flask, filter screen and skeleton, the inside inlay card of last block has the neck bush, the neck bush lower extreme has the internal thread, the filter flask upper end has the external screw thread, filter flask and neck bush threaded connection, the filter screen is cylindricly and overlaps outside the skeleton, is cylindric skeleton upper end and supports and lean on in the neck bush, and the skeleton lower extreme supports and leans on in the filter flask bottom, and the nested support cover that has in skeleton upper end, and the filter screen overcoat has the cap of scraping that can freely slide from top to bottom and have certain buoyancy, and the filter screen overcoat has still the spring, and spring one end supports and leans on the support cover, and the spring other end supports and. The scraping cap which can move up and down is arranged outside the filter screen, so that impurities outside the filter screen can be cleaned; the rotating blades are arranged in the framework, so that attachments on the inner wall of the framework can be cleaned.

Description

Automatic back-washing rotary scraping filter
Technical Field
The utility model belongs to the technical field of leading filter, a filter is scraped soon in automatic back flush is related to.
Background
The pre-filter is generally arranged at the front end of the pipeline, is a first coarse filtering device for water used in the whole house and can filter large granular substances such as silt, rust, ova, red worms and the like in tap water. The pre-filter can prevent a large amount of precipitated impurities generated in water supply networks of cities and communities from damaging human bodies, and plays a positive pre-protection role in hidden pipelines, faucets, water heaters, boilers, washing machines, toilets, dish-washing machines, coffee machines and other household water appliances (water purifiers, water purifiers and water softeners).
After a long-term use, impurities may adhere to the filter net of the filter element, resulting in a deteriorated filtering effect. Some pre-filters have the function of backwashing or scraping the filter screen to remove impurities on the filter screen. The patent application (application number 201810046894.6) discloses an external pressure type prefilter with positive flushing and back flushing functions, which comprises a prefilter body, wherein the prefilter body comprises a machine head with a water inlet and a water outlet, a filter flask connected with the machine head, a framework arranged in the filter flask, a filter element arranged in the framework and a drainage piece arranged at the bottom, a drainage channel is arranged in the framework, a drainage channel switching mechanism for positive flushing and back flushing is further arranged at the bottom of the framework, the drainage channel switching mechanism is provided with a first channel port and a second channel port, the second channel port can be opened or closed, and when the second channel port is closed, a first drainage channel is formed among a drainage channel outlet, the first channel port and the drainage piece; when the second passage opening is opened, a second drainage flow channel is formed among the second passage opening, the first passage opening and the drainage piece; and the part between the inner wall of the filter bottle and the drainage flow channel switching mechanism is positioned at the lower part of the second passage opening and is directly or indirectly sealed in a rotating way. When the second passage opening is closed by the conversion part, the water flow is discharged by the drainage part through the drainage passage outlet and the first passage opening at the bottom of the cavity in a back washing mode, and impurities embedded into the surface of the filter element are sucked out by siphon force generated when the water flow passes through the drainage passage and then are discharged; when the rotating piece rotates to open the second passage opening, water flow is directly discharged from the water discharging piece through the second passage opening, and the large-particle impurities on the surface of the filter element are directly washed away in a positive washing mode. F1 is more than F2, and the framework can not rotate synchronously when the rotating piece opens or closes the second passage. However, the cleaning is troublesome because the cleaning is manually performed at regular time.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having the above-mentioned problem to current technique, provided an automatic back flush is scraped filter soon, had the cap of scraping of automatic scraping filter screen, the filter screen is washd in the scraping when carrying out the drainage, makes impurity can not attach to on the filter screen, improves filter screen filter effect.
The purpose of the utility model can be realized by the following technical proposal: the utility model provides an automatic back flush is scraped filter soon, includes block, filter flask, filter screen and skeleton, its characterized in that, the inside inlay card of block has the neck bush, the neck bush lower extreme has the internal thread, the filter flask upper end has the external screw thread, filter flask and neck bush threaded connection, the filter screen is cylindricly and overlaps outside the skeleton, is cylindric skeleton upper end and supports and lean on in the neck bush, and the skeleton lower extreme supports and leans on in the filter flask bottom, and the nested support cover that has of skeleton upper end, filter screen overcoat have can freely slide from top to bottom and have the cap of scraping of certain buoyancy, and the filter screen overcoat has still the spring, and spring one end supports and leans on the support cover, and the spring other.
When the faucet is turned on, tap water enters the filter flask due to water pressure, the flow velocity of the water downwards impacts the scraping cap, and the scraping cap moves downwards in cooperation with the thrust of the spring; when water is stopped to enter, the buoyancy of the scraping cap is larger than the elastic force of the spring because the filter flask is filled with water, so that the scraping cap floats upwards and moves upwards along the filter screen. Therefore, the action of scraping the filter screen by the scraping cap one by one causes the impurities to fall and deposit in the sewage pipe at the bottom of the filter flask, and the sewage pipe at the bottom can be periodically opened for cleaning.
Furthermore, the framework is internally provided with a rotating blade in a sliding fit mode, the outer end of the rotating blade is attached to the inner wall of the framework, and the upper end of the rotating blade is tied with a floating ball through a thin rope.
The rotating blade scrapes the inner wall of the framework up and down under the driving of the floating ball, so that the attachment in the framework is automatically cleaned.
Furthermore, the filter flask outer wall has the riser that a plurality of circumference set up, and the filter flask overcoat has the commentaries on classics board, and it has a plurality of draw-in grooves to open on the commentaries on classics board, riser and draw-in groove one-to-one. The filter flask can be easily rotated through the rotating plate, and the installation and the disassembly are more convenient.
Further, the scraping cap is made of hollow plastic materials.
Further, the inner wall of the scraping cap is coated with a wear-resistant layer.
As another scheme, a rubber ring is adhered to the inner wall of the scraping cap, and the thickness of the rubber ring is 1-1.5 mm.
Compared with the prior art, the automatic backwashing rotary scraping filter has the advantages that:
1. the scraping cap which can move up and down is arranged outside the filter screen, so that impurities outside the filter screen can be cleaned;
2. the rotating blades are arranged in the framework, so that attachments on the inner wall of the framework can be cleaned.
Drawings
Fig. 1 is a cross-sectional view of the present automatic backflush spin-scraping filter.
Fig. 2 is a schematic perspective view of the automatic backwashing rotary scraping filter.
FIG. 3 is a schematic structural view of a second shaving cap according to the embodiment.
In the figure, 1, a cover cap is arranged; 2. a filter flask; 21. a vertical plate; 3. filtering with a screen; 4. a framework; 5. an inner liner; 6. scraping the cap; 61. a rubber ring; 7. a spring; 8. a support sleeve; 9. rotating the leaves; 10. a floating ball; 11. and (6) rotating the plate.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1-2, the automatic backwashing spin-scraping filter comprises an upper cap 1, a filter flask 2, a filter screen 3 and a framework 4, wherein an inner bushing 5 is embedded in the upper cap 1 in a clamping manner, an internal thread is arranged at the lower end of the inner bushing 5, an external thread is arranged at the upper end of the filter flask 2, the filter flask 2 is in threaded connection with the inner bushing 5, and the filter screen 3 is cylindrical and is sleeved outside the framework 4.
The upper end of a cylindrical framework 4 is abutted against the inner lining 5, the lower end of the framework 4 is abutted against the bottom of the filter flask 2, the upper end of the framework 4 is nested with a support sleeve 8, the filter screen 3 is externally sleeved with a scraping cap 6 which can freely slide up and down and has certain buoyancy, the filter screen 3 is further externally sleeved with a spring 7, one end of the spring 7 is abutted against the support sleeve 8, and the other end of the spring 7 is abutted against the scraping cap 6.
The normal filtering direction of the filter is that the filter flask 2 flows into the framework 4, the filter screen 3 is arranged between the framework 4 and the filter flask 2, the filter is suitable for being installed on a water pipe in front of a water faucet, when the water faucet is turned on, tap water enters the filter flask 2 due to water pressure, the flow velocity of the water is downward and impacts the scraping cap 6, and the scraping cap 6 is moved downward by matching with the thrust of the spring 7; when water inflow is stopped, the buoyancy of the scraping cap 6 is larger than the elastic force of the spring 7 due to the fact that the filter flask 2 is filled with water, so that the scraping cap 6 floats upwards and moves upwards along the filter screen 3. Therefore, the action of scraping the filter screen 3 by the scraping cap 6 is carried out one by one, so that impurities fall and are deposited in the sewage discharge pipe at the bottom of the filter flask 2, and the sewage discharge pipe at the bottom can be periodically opened for cleaning.
The framework 4 is internally provided with a rotating blade 9 in a sliding fit mode, the outer end of the rotating blade 9 is attached to the inner wall of the framework 4, and the upper end of the rotating blade 9 is tied with a floating ball 10 through a thin rope.
The rotating blade 9 is driven by the floating ball 10 to scrape the inner wall of the framework 4 up and down, so that the attachments in the framework 4 can be automatically cleaned.
2 outer walls of filter flask have the riser 21 that a plurality of circumference set up, and 2 overcoat of filter flask have changeing board 11, change and open on the board 11 and have a plurality of draw-in grooves, riser 21 and draw-in groove one-to-one. The filter flask 2 can be easily rotated through the rotating plate 11, and the installation and the disassembly are convenient.
Scrape cap 6 and make for hollow plastic material, scrape 6 inner walls of cap and scribble the wearing layer.
Example two
As shown in fig. 3, a rubber ring 61 is adhered to the inner wall of the scraping cap 6, and the thickness of the rubber ring 61 is 1-1.5 mm.
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.

Claims (6)

1. The utility model provides an automatic back flush is scraped filter soon, includes block, filter flask, filter screen and skeleton, its characterized in that, the inside inlay card of block has the neck bush, the neck bush lower extreme has the internal thread, the filter flask upper end has the external screw thread, filter flask and neck bush threaded connection, the filter screen is cylindricly and overlaps outside the skeleton, is cylindric skeleton upper end and supports and lean on in the neck bush, and the skeleton lower extreme supports and leans on in the filter flask bottom, and the nested support cover that has of skeleton upper end, filter screen overcoat have can freely slide from top to bottom and have the cap of scraping of certain buoyancy, and the filter screen overcoat has still the spring, and spring one end supports and leans on the support cover, and the spring other.
2. The automatic back-washing rotary scraping filter of claim 1, wherein the frame is slidably fitted with a rotary blade, the outer end of the rotary blade is attached to the inner wall of the frame, and the upper end of the rotary blade is tied with a floating ball through a thin rope.
3. The automatic back-washing rotary scraping filter of claim 2, wherein the outer wall of the filter flask is provided with a plurality of circumferentially arranged vertical plates, the filter flask is sleeved with a rotating plate, the rotating plate is provided with a plurality of clamping grooves, the vertical plates and the clamping grooves are in one-to-one correspondence, the filter flask can be easily rotated through the rotating plate, and the installation and the disassembly are convenient.
4. The automatic backwash spin-on filter according to claim 3, wherein said scraping cap is made of hollow plastic material.
5. The automatic backwash spin-on filter according to claim 4, wherein the inner wall of said scraping cap is coated with an abrasion resistant layer.
6. The automatic back-washing rotary scraping filter of claim 4, wherein a rubber ring is adhered to the inner wall of the scraping cap, and the thickness of the rubber ring is 1-1.5 mm.
CN201921693254.0U 2019-10-10 2019-10-10 Automatic back-washing rotary scraping filter Active CN210993283U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921693254.0U CN210993283U (en) 2019-10-10 2019-10-10 Automatic back-washing rotary scraping filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921693254.0U CN210993283U (en) 2019-10-10 2019-10-10 Automatic back-washing rotary scraping filter

Publications (1)

Publication Number Publication Date
CN210993283U true CN210993283U (en) 2020-07-14

Family

ID=71466228

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921693254.0U Active CN210993283U (en) 2019-10-10 2019-10-10 Automatic back-washing rotary scraping filter

Country Status (1)

Country Link
CN (1) CN210993283U (en)

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