CN212757579U

CN212757579U - Front filter

Info

Publication number: CN212757579U
Application number: CN202021198474.9U
Authority: CN
Inventors: 胡效军; 陈亚清; 顾博焕
Original assignee: Hangzhou Shuixiang Environmental Technology Co ltd
Current assignee: Hangzhou Shuixiang Environmental Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-03-23
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a leading filter, shell body, filter flask and filter screen outside-in are nested each other in proper order, and the butt of clearance frame need not to change the structure of filter screen between filter flask and filter screen, guarantees that the filter screen possesses good filter effect. In addition, the clearance frame links firmly with the shell body mutually, and when the shell body rotated, the clearance frame rotated along with the shell body is synchronous, and the clearance frame rotates for filter flask and filter screen respectively, made the inside and outside both sides correspondence of clearance frame scrape filter screen and filter flask adnexed impurity, realized clearance filter screen and filter flask simultaneously, clearance effect preferred. Therefore, the utility model provides a leading filter can realize promoting filter effect and clearance effect simultaneously.

Description

Front filter

Technical Field

The utility model relates to a water purification unit technical field, in particular to leading filter.

Background

City water supplied by a water plant usually flows through parts such as a water supply pipe or a pressure reducing valve, the water supply pipe is usually rusted or silt, floating objects generated due to abrasion exist in the pressure reducing valve, and the impurities seriously affect the human health and the service life of subsequent equipment such as a washing machine or a water heater.

Current leading filter includes filter screen and the filter flask of cover outside locating the filter screen usually, uses a period after, and filter screen and filter flask all are stained with a large amount of impurity, and for cleaing away these impurity, current leading filter adds the clearance brush usually in the filter screen, and the clearance brush can be for filter screen circumferential direction under the support of axis of rotation, realizes the impurity in the clearance filter screen. The cleaning brush is additionally arranged, so that the structure of the filter screen is changed, and the filtering effect of the filter screen is influenced; on the other hand, the cleaning brush cannot clean impurities adhered to the wall of the filter flask because of being positioned in the filter screen, and the cleaning effect is poor.

Therefore, how to optimize the structure of the prior prefilter to simultaneously improve the filtering effect and the cleaning effect is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a leading filter adds clearance frame between filter flask and filter screen, and clearance frame can clear up filter screen and filter flask adnexed impurity simultaneously when the shell body rotates in step, need not to change the filter screen structure, makes filter effect and clearance effect all promote to some extent.

The utility model provides a leading filter, include:

the outer shell, the filter flask and the filter screen are sequentially nested from outside to inside;

the cleaning frame is abutted between the filter bottle and the filter screen, is fixedly connected with the outer shell, and is used for rotating relative to the filter bottle and the filter screen along with the outer shell so as to scrape off impurities attached to the filter bottle and the filter screen.

Preferably, the cleaning frame comprises:

the supporting sleeve is sleeved between the filter bottle and the filter screen;

the scraping strips are fixed on the supporting sleeve along the circumferential direction, and the two opposite sides of the scraping strips are respectively provided with an outer scraping tooth and an inner scraping tooth which are correspondingly abutted against the filter bottle and the filter screen.

Preferably, the support sleeve is provided with a plurality of water holes for communicating the filter screen and the filter flask.

Preferably, the method further comprises the following steps:

the outer peripheral surface of the adapter plate is meshed with the inner side wall of the outer shell;

the sealing element is arranged in a sewage discharge port of the filter bottle, and two ends of the sealing element are respectively sleeved with the central hole of the adapter plate and the bottom end of the support sleeve;

the lower limiting part is arranged between the sealing element and the central hole to limit the relative rotation of the sealing element and the central hole in the circumferential direction;

and the upper limiting part is arranged between the sealing element and the supporting sleeve to limit the relative circumferential rotation of the sealing element and the supporting sleeve.

Preferably, the peripheral face of switching dish is equipped with outer ring gear, and the inside wall of shell body sets firmly a plurality of interior rodents that mesh mutually with outer ring gear.

Preferably, the outer scraping teeth are elastic outer scraping teeth, and the inner scraping teeth are elastic inner scraping teeth.

Preferably, the adapter plate, the sealing element and the support sleeve are arranged coaxially.

Compared with the prior art, the utility model provides a leading filter, shell body, filter flask and filter screen outside-in are nested each other in proper order, and the butt of clearance frame need not to change the structure of filter screen between filter flask and filter screen, guarantees that the filter screen possesses good filter effect. In addition, the clearance frame links firmly with the shell body mutually, and when the shell body rotated, the clearance frame rotated along with the shell body is synchronous, and the clearance frame rotates for filter flask and filter screen respectively, made the inside and outside both sides correspondence of clearance frame scrape filter screen and filter flask adnexed impurity, realized clearance filter screen and filter flask simultaneously, clearance effect preferred. Therefore, the utility model provides a leading filter can realize promoting filter effect and clearance effect simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a block diagram of a pre-filter according to an embodiment 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 block diagram of the outer housing of FIG. 3;

FIG. 5 is a block diagram of the filter screen of FIG. 3;

FIG. 6 is a block diagram of the support sleeve of FIG. 3;

FIG. 7 is a block diagram of the wiper strip of FIG. 3;

FIG. 8 is a block diagram of the adapter of FIG. 3;

fig. 9 is a structural view of the sealing member of fig. 3.

The reference numbers are as follows:

the device comprises an outer shell 1, a filter bottle 2, a filter screen 3, a cleaning frame 4, a switching disc 5 and a sealing element 6;

an inner toothing 11;

a lower limit shaft 61 and an upper limit shaft 62;

a support sleeve 41 and a wiper strip 42;

water passing holes 411 and socket holes 412;

outer wiper teeth 421 and inner wiper teeth 422;

an outer ring gear 51 and a central bore 52.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments of the scraping strip are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 9, fig. 1 is a structural diagram of a prefilter according to an embodiment 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 block diagram of the outer housing of FIG. 3; FIG. 5 is a block diagram of the filter screen of FIG. 3; FIG. 6 is a block diagram of the support sleeve of FIG. 3; FIG. 7 is a block diagram of the wiper strip of FIG. 3; FIG. 8 is a block diagram of the adapter of FIG. 3; fig. 9 is a structural view of the sealing member of fig. 3.

The embodiment of the utility model discloses leading filter, including outside-in shell body 1, filter flask 2 and filter screen 3 nested each other in proper order, the coaxial setting of three. Wherein, shell body 1 can rotate around self axis, and filter flask 2 is used for bearing other parts, and filter screen 3 locates filter assembly's periphery. In this embodiment, the structure and the matching relationship of the outer housing 1, the filter bottle 2 and the filter assembly can be referred to the prior art, and will not be described in detail herein.

The utility model discloses still include the butt in the clearance frame 4 between filter flask 2 and filter screen 3, need not to change filter screen 3's structure, guarantee that filter screen 3 possesses good filter effect. Clearance frame 4 links firmly with shell body 1 mutually, and when shell body 1 rotated, clearance frame 4 rotated along with shell body 1 is synchronous, and clearance frame 4 rotates for filter flask 2 and filter screen 3, makes the inside and outside both sides correspondence of clearance frame 4 scrape filter screen 3 and the adnexed impurity of filter flask 2, realizes clearing up filter screen 3 and filter flask 2 simultaneously, clearance effect preferred.

To sum up, the utility model provides a leading filter can realize promoting filter effect and clearance effect simultaneously.

In this embodiment, the cleaning frame 4 includes a supporting sleeve 41 and a scraping strip 42, the supporting sleeve 41 is sleeved between the filter bottle 2 and the filter screen 3, and the supporting sleeve 41, the filter bottle 2 and the filter screen 3 are coaxially disposed. Support cover 41 and be equipped with a plurality of water holes 411 of crossing, cross water hole 411 and be used for communicateing filter screen 3 and filter flask 2, avoid influencing the filter effect of filter screen 3. Since the filter net 3 and the filter bottle 2 are both cylindrical, the support sleeve 41 is also cylindrical, and the water through hole 411 is a square through hole penetrating in the radial direction of the support sleeve 41, but is not limited thereto.

The scraping strips 42 comprise a plurality of scraping strips 42, the plurality of scraping strips 42 are circumferentially fixed on the supporting sleeve 41, correspondingly, the supporting sleeve 41 is provided with a mounting groove for accommodating the scraping strips 42, and the scraping strips 42 can be fixed in the mounting groove in an interference connection mode. The wiper strips 42 each extend in the radial direction of the support sleeve 41.

In order to facilitate the scraping of impurities, the two opposite sides of the scraping strip 42 are respectively provided with an outer scraping tooth 421 and an inner scraping tooth 422, the outer scraping tooth 421 is arranged at the outer side of the scraping strip 42, so that the outer scraping tooth 421 is abutted against the inner wall of the filter flask 2, and the outer scraping tooth 421 scrapes the impurities attached to the inner wall of the filter flask 2. The inner scraping teeth 422 are arranged on the inner side of the scraping strip 42, and the inner scraping teeth 422 are abutted against the outer peripheral surface of the filter screen 3, so that the inner scraping teeth 422 scrape impurities attached to the outer peripheral surface of the filter screen 3. The outer scraping teeth 421 and the inner scraping teeth 422 both extend along the radial direction of the support sleeve 41, and the specific length of the outer scraping teeth and the inner scraping teeth 422 depends on the radial distance between the filter screen 3 and the filter flask 2, and is not limited in detail.

In order to prevent scratching the inner side wall of the filter flask 2, the outer scraping teeth 421 are elastic outer scraping teeth; similarly, to prevent scratching the filter screen 3, the inner scraping teeth 422 are elastic inner scraping teeth. The outer scraping teeth 421 and the inner scraping teeth 422 may be made of rubber, but are not limited thereto.

In order to further prevent scratching the filter bottle 2 or the filter screen 3, the adapter plate 5, the sealing element 6 and the support sleeve 41 are coaxially arranged, so that the support sleeve 41 is prevented from inclining, and further, scratching prevention is realized.

The utility model discloses still include switching dish 5 and sealing member 6, the outer peripheral face of switching dish 5 and the inboard wall interlock of shell body 1 make switching dish 5 rotate along with shell body 1 is synchronous. Specifically, the outer circumferential surface of the adapter plate 5 is provided with an outer gear ring 51, the inner side wall of the outer shell 1 is fixedly provided with a plurality of inner gear teeth 11, and the inner gear teeth 11 are meshed with the outer gear ring 51, so that the adapter plate 5 and the outer shell 1 keep synchronous rotation.

The bottom of filter flask 2 is equipped with the drain, and sealing member 6 is installed in the drain. It is critical that both ends of the sealing member 6 are respectively sleeved with the central hole 52 of the adapter plate 5 and the bottom end of the supporting sleeve 41. In this embodiment, the center of the adapter plate 5 is provided with a center hole 52 penetrating along the axial direction thereof, and the bottom of the support sleeve 41 is provided with a sleeve hole 412 for sleeve-connecting with the top of the sealing member 6. The sealing member 6 may be a rubber sealing member that seals against the drain opening by elastic force, but the material of the sealing member 6 is not limited thereto.

In order to enable the adapter plate 5 to drive the support sleeve 41 to rotate, a lower limit part is arranged between the sealing element 6 and the central hole 52, an upper limit part is arranged between the sealing element 6 and the support sleeve 41, the lower limit part is used for limiting the circumferential relative rotation of the sealing element 6 and the central hole 52, and the upper limit part is used for limiting the circumferential relative rotation of the sealing element 6 and the support sleeve 41, so that the adapter plate 5, the sealing element 6 and the support sleeve 41 rotate synchronously, the outer shell 1 drives the support sleeve 41 to rotate synchronously through the adapter plate 5, and the support sleeve 41 rotates circumferentially relative to the filter bottle 2 and the filter screen 3 respectively.

In this embodiment, the lower limiting portion includes a lower limiting hole formed in the inner sidewall of the central hole 52 and a lower limiting shaft 61 formed at the bottom end of the sealing member 6, the lower limiting hole is a square hole, and the lower limiting shaft 61 is a square shaft, although the structure of the lower limiting hole and the lower limiting shaft 61 is not limited thereto. The upper limiting portion includes an upper limiting shaft 62 disposed at the top end of the sealing member 6 and an upper limiting hole disposed on the inner side wall of the sleeve hole 412 of the support sleeve 41, and the cross sections of the upper limiting shaft 62 and the upper limiting hole are regular octagons, but may also be regular quadrangles, regular hexagons, etc., which are not specifically limited herein.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pre-filter, comprising:

the filter comprises an outer shell (1), a filter flask (2) and a filter screen (3) which are sequentially nested from outside to inside;

the cleaning frame (4) is abutted between the filter bottle (2) and the filter screen (3), is fixedly connected with the outer shell (1), and is used for rotating along with the outer shell (1) relative to the filter bottle (2) and the filter screen (3) respectively so as to scrape impurities attached to the filter bottle (2) and the filter screen (3).

2. The pre-filter according to claim 1, characterised in that the cleaning rack (4) comprises:

the support sleeve (41) is sleeved between the filter bottle (2) and the filter screen (3);

the scraping strips (42) are fixed on the support sleeve (41) along the circumferential direction, and the two opposite sides of the scraping strips (42) are respectively provided with an outer scraping tooth (421) and an inner scraping tooth (422) which are correspondingly abutted against the filter flask (2) and the filter screen (3).

3. The prefilter of claim 2 wherein said support sleeve (41) is provided with a plurality of water holes (411) for communicating said filter screen (3) with said filter flask (2).

4. The prefilter of claim 2 further comprising:

the outer peripheral surface of the adapter plate (5) is meshed with the inner side wall of the outer shell (1);

the sealing element (6) is arranged in a sewage discharge port of the filter bottle (2), and two ends of the sealing element are respectively sleeved with the central hole (52) of the adapter plate (5) and the bottom end of the support sleeve (41);

a lower retainer disposed between the seal (6) and the central bore (52) to define circumferential relative rotation therebetween;

and an upper limiting part which is arranged between the sealing element (6) and the supporting sleeve (41) to limit the relative rotation of the sealing element and the supporting sleeve in the circumferential direction.

5. The prefilter according to claim 4 wherein the adapter plate (5) is provided on its peripheral surface with an external toothing (51), and the outer housing (1) is provided on its inner side wall with a plurality of internal teeth (11) engaging with said external toothing (51).

6. The pre-filter according to any of claims 2 to 4, characterised in that the outer scraping teeth (421) are in particular elastic outer scraping teeth and the inner scraping teeth (422) are in particular elastic inner scraping teeth.

7. Prefilter according to claim 4, wherein said adaptor disc (5), said sealing element (6) and said support sleeve (41) are coaxially arranged.