CN216295364U

CN216295364U - Self-cleaning pre-filter capable of manually rotating scraping and washing assembly

Info

Publication number: CN216295364U
Application number: CN202122510871.6U
Authority: CN
Inventors: 曹开军; 董钰
Original assignee: Haining Beirui Environmental Protection Technology Co ltd
Current assignee: Haining Beirui Environmental Protection Technology Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-04-15
Anticipated expiration: 2031-10-19

Abstract

The utility model relates to a self-cleaning pre-filter capable of manually rotating a scraping and washing assembly, which comprises a machine head with a water inlet and a water outlet, a filter flask and a drain outlet at the bottom of the filter flask, wherein a filtering mechanism is arranged in the filter flask; the scraping and washing assembly comprises a scraping and washing framework, a scraping and washing strip and a sewage discharge channel, the scraping and washing framework is sleeved outside the filtering mechanism and can rotate relatively, and the scraping and washing framework is provided with a driving blade; through the adjustment of structure, realize leading filter's normalized washing, avoid the filth to adhere to on filter screen surface, ensure that filtering mechanism's filtration performance maintains a higher level, when really needing manual blowdown to scrape and wash, scrape through manual rotation and wash the subassembly, the abundant further washing blowdown of efficient improves leading filter's filtration performance, prolongs leading filter's life.

Description

Self-cleaning pre-filter capable of manually rotating scraping and washing assembly

Technical Field

The utility model relates to a self-cleaning pre-filter capable of manually rotating a scraping and washing assembly, and belongs to the technical field of water purification equipment.

Background

The prior art filter comprises: the filter flask that aircraft nose, upper end and aircraft nose are connected is provided with filter element group spare in the filter flask, and filter element group spare includes the filter screen skeleton, and the outer wall cover of filter screen skeleton is equipped with the filter screen. In the using process, water flows into a gap between the filter flask and the filter screen from a water inlet of the machine head, flows into the center of the filter screen framework after being filtered by the filter screen, and then flows to a water outlet of the machine head from the center of the filter screen framework, and the filter is deeply inserted into thousands of households and high-grade hotels.

Current filter does not have self-cleaning function, and filter element group spare can block up after using for a long time, needs to be changed or wash, and prior art mostly passes through the manual blowoff valve that opens during the washing, operates corresponding mechanism and rotates and scrape and wash or change the water route backwash, in case the scale deposit is too much when, operates and to get up the time and energy consuming that can be considerable, and filtering quality of filtering mechanism descends very fast moreover. The utility model aims to solve the technical problem and provides a self-cleaning prefilter capable of manually rotating a scraping and washing assembly, which realizes normalization of scraping and washing, avoids attachment of dirt on the surface of a filter screen, ensures that the filtering performance of a filtering mechanism maintains a higher level, and efficiently and fully further cleans and discharges the dirt through manually rotating the scraping and washing assembly when manual dirt discharging and scraping are really needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a self-cleaning prefilter capable of manually rotating a scraping and washing assembly. Through the adjustment of structure, realize leading filter's normalized washing, avoid the filth to adhere to on filter screen surface, ensure that filtering mechanism's filtration performance maintains a higher level, when really needing manual blowdown to scrape and wash, scrape through manual rotation and wash the subassembly, the abundant further washing blowdown of efficient improves leading filter's filtration performance, prolongs leading filter's life.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a self-cleaning prefilter capable of manually rotating a scraping and washing assembly comprises a machine head with a water inlet and a water outlet, a filter flask and a sewage discharge outlet at the bottom of the filter flask, wherein a filtering mechanism is arranged in the filter flask, and a rotating mechanism capable of rotating inlet water flow is arranged at the top of the filtering mechanism;

the scraping and washing assembly comprises a scraping and washing framework, a scraping and washing strip and a sewage discharge channel, the scraping and washing framework is sleeved outside the filtering mechanism and can rotate relatively, and the scraping and washing framework is provided with a driving blade;

the blowdown control assembly comprises a blowdown sealing member arranged at a blowdown port, a blowdown control valve is arranged at an outlet of the blowdown sealing member, and the blowdown sealing member is in rotary sealing connection with the filter flask;

the limiting assembly comprises a rotating disc and a one-way rotating structure, the rotating disc can rotate along with the rotation of the pollution discharge sealing element, and the one-way rotating structure is a ratchet structure or an elastic arm structure arranged between the scraping and washing framework and the rotating disc;

during filtering, the scraping and washing assembly can rotate along the water flow direction under the impact of water flow; when in pollution discharge, the rotating disc can rotate along with the pollution discharge sealing element along the direction against the water flow under the action of external force, and the scraping and washing framework synchronously rotates under the driving of the unidirectional rotating structure, so that manual scraping and washing are realized; and after the sewage discharge is finished, the filtering state is recovered.

The utility model has reasonable structural design and convenient assembly and use, and realizes the normalized cleaning of the pre-filter through the adjustment of the structure. When the dirt is more, when scraping the subassembly card jail, through the reverse scraping of manual mode and wash, the dirt is clear away to the high efficiency, convenient to use, good reliability.

Preferably, the unidirectional rotation structure adopts a ratchet structure, the rotating disc is circumferentially provided with at least one pawl and an adaptive elastic piece, the bottom end of the scraping and washing framework is circumferentially provided with a ratchet, and when the rotating disc rotates against the water flow, the pawl is linked with the ratchet to drive the scraping and washing framework to rotate synchronously.

The bottom end of the scraping and washing framework is provided with a framework lower cover, and the ratchet wheel is arranged on the framework lower cover.

Preferably, the scraping and washing strip comprises an inner scraping and washing strip and an outer scraping and washing strip which are respectively abutted with the outer surface of the filtering mechanism and the inner wall of the filter bottle.

Preferably, a lower cover assembly is fixedly arranged outside the pollution discharge control valve, and during pollution discharge, the pollution discharge control valve is driven by the lower cover assembly, so that a pollution discharge sealing element is driven.

Preferably, the rotating disc is provided with a sewage discharge hole A, the framework lower cover is provided with a sewage discharge hole B, and a sewage discharge cavity channel is arranged between the rotating disc and the framework lower cover.

Preferably, a cover body is fixedly arranged outside the machine head.

According to the utility model, under the action of water flow, the scraping and washing assembly can rotate continuously to remove dirt on the filter flask and the filter screen. When meetting the large granule dirt, perhaps do not have the blowdown for a long time, lead to scraping the condition of washing the subassembly card jail, can open the blowdown switch, manual rotatory lower cover subassembly, the lower cover subassembly drives the blowdown sealing member and rotates, and then drives and scrape the skeleton and rotate, scrapes the subassembly and scrapes washing the clearance to filter flask and filter screen, can realize the blowdown of large granule blowdown or siphon back flush switching blowdown. When the scraping and washing framework is cleaned, the framework can automatically rotate, sewage can be discharged and automatically cleaned, the sewage is continuously in a direct flushing and siphon back flushing switching state at the moment, and the sewage discharging effect is better.

The utility model mainly comprises functional components: the mouth of the filter flask is provided with a rotating mechanism which drives the water flow to rotate, and the water flow is clamped into the filter mechanism and is fixed relative to the filter flask. Scrape and wash the subassembly by scraping and wash the skeleton, scrape and wash the strip, scrape and wash a fixed lid, skeleton lower cover and drive blade and constitute, scrape and wash the strip and be fixed in through scraping and wash the strip fixed lid and scrape and wash the skeleton, scrape and wash and be equipped with the siphon groove on the subassembly, drive blade is gone into from upper portion card, and the skeleton lower cover is gone into from bottom card and is scraped and wash the skeleton.

The bottom of the utility model is provided with a unidirectional rotation structure, a pawl can be arranged on a rotating disc, and the unidirectional rotation is realized by matching with an elastic piece (spring) or adopting a structure of an elastic arm to press a ratchet wheel on a framework lower cover. The sealing ring is arranged on the outer side of the rotating disc, so that dirt is prevented from entering the pawl part from the outer side, the shielding rib is arranged on the lower portion of the framework lower cover, the dirt is prevented from entering the position where the pawl is matched with the ratchet wheel, meanwhile, the small hole is formed in the position, a small amount of entering dirt can be discharged from the small hole, and meanwhile, the rotating disc is provided with a plurality of openings, so that the dirt can smoothly enter the bottom of the filter flask.

The working principle of the utility model is as follows: after the pre-filter is filled with water, water flow enters the filter flask from the left water inlet, passes through the rotating mechanism, the rotating mechanism is provided with the guide blades, and the water flow rotates along one direction.

When the rotating water flow impacts the driving blade on the scraping and washing framework, the driving blade is stressed to rotate together with the scraping and washing framework. At this time, the ratchet 6 on the rotating disc is expanded outwards under the action of the guiding force on the framework lower cover, and the spring is compressed. Therefore, the scraping framework continuously rotates to scrape and wash the filter flask and the filter mechanism, and dirt sinks into the bottom.

When in a sewage discharge state, the knob on the lower cover component is opened, and large-particle dirt flows into the sewage discharge outlet through the sewage discharge hole A on the rotating disc or the sewage discharge cavity channel between the large-particle dirt and the lower cover of the framework. Meanwhile, a sewage discharge hole B is formed in the bottom of the lower framework cover, and when the lower framework cover is firmly aligned with an opening in the middle of the rotating disc in the rotating process, large-particle dirt is discharged through a sewage discharge port; when the rotation process of the blow-off hole B at the bottom of the lower cover of the framework is blocked by the rotating disc, the framework is scraped and washed to form a siphon environment which is relatively closed due to the fact that the siphon groove is formed in the framework and the lower cover of the framework is arranged at the lower portion of the framework, and dirt such as colloid on the filtering mechanism enters from the siphon groove and is discharged from the blow-off port at the bottom. In the whole working process, the siphon and the direct flushing are continuously switched.

When the foreign matter blocks the blowdown state, the lower cover subassembly is rotated along a direction manually, and there is spacing lower cover subassembly and rolling disc bottom, drives the rolling disc and rotates, and at this moment, the pawl card is gone into skeleton lower cover department ratchet structure, drives to scrape and washes the skeleton and rotate, clears up the foreign matter. In the rotating process, the lower cover component can be properly rotated, the rotating angle is between 90 degrees and 180 degrees, and then the rotation is continued, so that siphon back washing and large particle pollution discharge washing can be switched. When the foreign matters are cleaned to a certain degree, the scraping and washing framework can rotate automatically, and the lower cover assembly can stop rotating to enter a self-cleaning and pollution-discharging state.

In the utility model, the bottom pawl structure can also be considered to be similar to an elastic arm structure, is connected with the rotating disc into a whole and has similar functions.

The utility model has the beneficial effects that:

through the adjustment of structure, realize leading filter's normalized washing, avoid the filth to adhere to on filter screen surface, ensure that filtering mechanism's filtration performance maintains a higher level, when really needing manual blowdown to scrape and wash, scrape through manual rotation and wash the subassembly, the abundant further washing blowdown of efficient improves leading filter's filtration performance, prolongs leading filter's life.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

fig. 4 is a partial schematic view of the present invention.

In the figure: 1. the device comprises a machine head, 2, a filter flask, 3, a lower cover assembly, 4, a rotating disc, 5, a spring, 6, a pawl, 7, a framework lower cover, 8, a scraping and washing framework, 9, a scraping and washing strip, 10, a scraping and washing strip fixing element, 11, a filtering mechanism, 12, a driving blade, 13, a rotating mechanism, 14 and a sealing ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

A pre-filter according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

As shown in fig. 1-4, the self-cleaning prefilter of a manually rotatable scraping and washing assembly comprises a machine head 1 with a water inlet and a water outlet, a filter flask 2 and a sewage discharge outlet at the bottom of the filter flask 2, wherein a filter mechanism 11 is arranged in the filter flask 2, and a rotating mechanism 13 capable of rotating inflow water is arranged at the top of the filter mechanism 11;

the scraping and washing assembly comprises a scraping and washing framework 8, a scraping and washing strip 9 (fixed through a scraping and washing strip fixing piece 10) and a sewage discharge channel, the scraping and washing framework 8 is sleeved outside the filtering mechanism 11 and can rotate relatively, and the scraping and washing framework 8 is provided with a driving blade 12;

the blowdown control assembly comprises a blowdown sealing member arranged at a blowdown port, a blowdown control valve is arranged at the outlet of the blowdown sealing member, and the blowdown sealing member is in rotary sealing connection with the filter flask 2;

the limiting assembly comprises a rotating disc 4 and a one-way rotating structure, the rotating disc 4 can rotate along with the rotation of the pollution discharge sealing element, and the one-way rotating structure is a ratchet structure or an elastic arm structure arranged between the scraping and washing framework 8 and the rotating disc 4;

during filtering, the scraping and washing assembly can rotate along the water flow direction under the impact of water flow; when in pollution discharge, the rotating disc 4 can rotate along with the pollution discharge sealing element along the direction against the water flow under the action of external force, and the scraping and washing framework 8 synchronously rotates under the driving of the unidirectional rotating structure, so that manual scraping and washing are realized; and after the sewage discharge is finished, the filtering state is recovered.

Specifically, the one-way rotating structure adopts a ratchet wheel structure, at least one pawl 6 and an adaptive elastic part (spring 5) are circumferentially arranged on the rotating disc 4, the ratchet wheel is circumferentially arranged at the bottom end of the scraping and washing framework 8, and when the rotating disc 4 rotates against the water flow, the pawl 6 is linked with the ratchet wheel to drive the scraping and washing framework 8 to synchronously rotate.

The bottom end of the scraping and washing framework 8 is provided with a framework lower cover 7, and the ratchet wheel is arranged on the framework lower cover 7.

Specifically, the scraping and washing strip 9 comprises an inner scraping and washing strip and an outer scraping and washing strip which are respectively abutted against the outer surface of the filtering mechanism 11 and the inner wall of the filter flask 2.

In the utility model, the lower cover component 3 is fixedly arranged outside the pollution discharge control valve, and when in pollution discharge, the pollution discharge control valve is driven by the lower cover component 3, so that the pollution discharge sealing element is driven.

Furthermore, the rotating disc 4 is provided with a sewage discharge hole A, the framework lower cover 7 is provided with a sewage discharge hole B, and a sewage discharge cavity channel is arranged between the rotating disc 4 and the framework lower cover 7. A cover body is fixedly arranged outside the machine head 1.

In this embodiment, the one-way stopping structure is a ratchet structure. A cover body is fixedly arranged outside the machine head 1.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A self-cleaning prefilter capable of manually rotating a scraping and washing assembly comprises a machine head with a water inlet and a water outlet, a filter flask and a sewage discharge outlet at the bottom of the filter flask, wherein a filtering mechanism is arranged in the filter flask, and a rotating mechanism capable of rotating inlet water flow is arranged at the top of the filtering mechanism;

2. The self-cleaning prefilter of a manually rotatable scraping assembly as claimed in claim 1 wherein said unidirectional rotation structure is a ratchet structure, said rotating disk is circumferentially provided with at least one pawl and an adaptive elastic member, said scraping frame is circumferentially provided with a ratchet at its bottom end, and when said rotating disk rotates against the counter-current, said pawl and said ratchet are linked to drive said scraping frame to rotate synchronously.

3. A self cleaning prefilter of a manually rotatable scraping assembly as claimed in claim 2 wherein said scraping frame is provided at its bottom end with a frame lower cover and said ratchet wheel is provided on said frame lower cover.

4. The self-cleaning prefilter of a manually rotatable scraping assembly according to claim 1, 2 or 3 wherein said scraping strips comprise inner scraping strips and outer scraping strips abutting the outer surface of the filter mechanism and the inner wall of the filter bottle, respectively.

5. The self-cleaning prefilter of a manually rotatable scraping assembly as claimed in claim 1, 2 or 3 wherein said blowdown control valve is externally fixed with a lower cover assembly, and wherein during blowdown, the blowdown control valve is driven by the lower cover assembly to drive the blowdown seal.

6. The self-cleaning prefilter of a manually rotatable scraping and washing assembly according to claim 3 wherein said rotary disc is provided with a drain hole A, said skeleton lower cover is provided with a drain hole B, and a drain channel is provided between said rotary disc and said skeleton lower cover.

7. The self-cleaning prefilter of a manually rotatable scraping assembly as claimed in claim 1 wherein a hood is fixedly attached to the exterior of said handpiece.

8. A self-cleaning prefilter of a manually rotatable scraping assembly as claimed in claim 3 wherein said rotary disc is provided on its outside with a sealing ring to prevent dirt from entering the pawl, and the lower portion of said skeleton lower cover is provided with a shielding rib to prevent dirt from entering the position where said pawl engages said ratchet wheel.

9. A self cleaning prefilter of a manually rotatable scraping assembly as claimed in claim 8 wherein the location where the pawl engages the ratchet wheel is provided with apertures through which a small amount of incoming dirt can be removed.