CN216963742U

CN216963742U - Cleaning device for pre-filter

Info

Publication number: CN216963742U
Application number: CN202122959957.7U
Authority: CN
Inventors: 陶孟银
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-15
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a cleaning device for a pre-filter, relating to the technical field of pipeline water purification equipment parts, and the technical scheme is as follows: the device comprises a support, an impeller and a cleaning assembly, wherein the support is arranged in a raw water cavity and divides the raw water cavity, and a flow guide hole is formed in the support; the impeller is rotatably arranged in the support, a drain hole communicated with the flow guide hole is formed in the impeller, the impeller is connected with the cleaning assembly, and the cleaning assembly is arranged on the outer side of the filter element and can clean the filter element; the water guide holes can guide water to the direction of the impeller so as to drive the impeller to rotate. All water flow in the raw water cavity impacts the impeller after passing through the flow guide holes, so that the impeller is driven to rotate, the rotating impeller can drive the cleaning assembly to rotate, and the rotating cleaning assembly can clean the outer side of the filter element; the water flow in the support can be discharged only through the drain holes, so that most of the water flow can act on the impeller, the driving force of the impeller on the cleaning assembly is increased, and the cleaning effect of the cleaning assembly on the raw water cavity and/or the filter element is effectively improved.

Description

Cleaning device for pre-filter

Technical Field

The utility model relates to the technical field of pipeline water purification equipment parts, in particular to a cleaning device for a pre-filter.

Background

The pre-filter is also called as a filter, belongs to a main pipeline water quality purification product, is arranged on a water pipe from a water meter to the position in front of a first water outlet faucet of a house, can ensure that impurities in a water supply network cannot cause harm to a human body, and plays a pre-protection role in wading equipment and the like in a room.

As shown in fig. 1, a raw water cavity 11 communicated with a water inlet flow passage 12 is arranged in a pre-filter 1, a filter element 2 is arranged in the pre-filter 1, the interior of the filter element 2 is communicated with a water outlet flow passage 13, and a blow-down valve 3 is arranged at the bottom of the pre-filter 1; after the raw water in the water inlet flow passage 12 enters the raw water chamber 11, the raw water passes through the filter element 2 to become filtered water and is discharged from the water outlet flow passage 13, so that the raw water is filtered.

The impurities in the raw water cavity are accumulated more along with the increase of the service time of the pre-filter, and the filter element needs to be cleaned to ensure the filtering effect of the filter element; the existing pre-filter is provided with a cleaning device such as a brush outside a filter element, the cleaning device is driven by water flow of raw water and rotates in a raw water cavity, impurities on the filter element can be cleaned by the brush, after a blowdown valve is opened, the pre-filter is in a blowdown state, and sewage in the raw water cavity is discharged through the blowdown valve. The applicant finds that the existing cleaning device has low rotating speed and low sewage discharge efficiency, and the cleaning effect of the cleaning device with low rotating speed on the filter element is limited.

SUMMERY OF THE UTILITY MODEL

In view of the disadvantages of the prior art, the present invention provides a cleaning device for a pre-filter, which has the advantage of strong driving force.

The technical purpose of the utility model is realized by the following technical scheme: a cleaning device for a pre-filter comprises a support, an impeller and a cleaning assembly, wherein the support is arranged in a raw water cavity and divides the raw water cavity, and a flow guide hole is formed in the support; the impeller is rotationally arranged in the support, a drain hole communicated with the flow guide hole is formed in the impeller, the impeller is connected with a cleaning assembly, and the cleaning assembly is arranged on the outer side of the filter element and can clean the raw water cavity and/or the filter element; the diversion hole can guide water to the direction of the impeller so as to drive the impeller to rotate.

According to the technical scheme, the raw water cavity is divided by the support, water flow in the upper half part of the raw water cavity can only enter the lower half part of the raw water cavity through the flow guide holes, and all water flow in the raw water cavity impacts the impeller after passing through the flow guide holes, so that the impeller is driven to rotate, the rotating impeller can drive the cleaning assembly to rotate, and the rotating cleaning assembly can clean the outer side of the filter element; the water flow in the support can only be discharged through the drain hole, so that most of the water flow can act on the impeller, the driving force of the impeller on the cleaning assembly is increased, and the cleaning effect of the cleaning assembly on the original water cavity and/or the filter element is effectively improved.

Preferably, an inner cavity communicated with the diversion hole is formed in the support, the impeller is rotatably arranged in the inner cavity, a baffle is arranged on one side, close to an opening of the inner cavity, of the impeller, the outer side of the baffle is close to the inner cavity, and the drainage hole is formed in the baffle.

Through above-mentioned technical scheme, rivers can be to rivers interception after the water conservancy diversion hole gets into the inner chamber for most rivers can strike the impeller, avoid the direct downward outflow of rivers, thereby improve the utilization ratio of rivers.

Preferably, the drain hole is located at the center of the baffle.

Through the technical scheme, the drain hole is positioned in the center of the baffle, water flow directly flows out through the drain hole after impacting the blade, and cannot be discharged due to accumulation between the inner cavity and the impeller, so that the impact force of the water flow is reduced and the rotation of the impeller is influenced; and the water flow is discharged from the center of the baffle plate, so that the stable rotation of the impeller can be ensured.

Preferably, the plurality of diversion holes are circumferentially arranged at intervals, and the plurality of diversion holes are obliquely arranged.

Through above-mentioned technical scheme, the setting in a plurality of water conservancy diversion holes has also further increased the effort of rivers to the impeller when having guaranteed rivers discharge efficiency.

Preferably, one side of the inner cavity, which is close to the baffle, is provided with a yielding groove, and a reserved gap is formed between the yielding groove and the baffle.

Through above-mentioned technical scheme, the setting in reservation clearance can effectively avoid baffle and inner chamber contact, even the impeller is at rotation in-process off-centre, also can not influence the rotational speed of impeller.

Preferably, the cleaning device further comprises a support piece, the support piece is connected in the pre-filter, a support column is arranged on the support piece, a mounting hole is formed in the bottom of the impeller, the support piece can stretch into the mounting hole and limit the impeller, and the impeller can rotate along the central axis of the support column.

Through above-mentioned technical scheme, the impeller passes through the support column axial spacing, can effectively reduce the frictional force of impeller, has further improved the rotational speed of impeller.

Preferably, a reinforcing sleeve is arranged in the mounting hole, a pointed end is arranged at the upper end of the supporting column, and the pointed end can extend into the reinforcing sleeve and is attached to the reinforcing sleeve.

Through the technical scheme, the arrangement of the reinforcing sleeve ensures the structural strength of the impeller and also prolongs the service life of the impeller; in addition, the supporting column is contacted with the reinforcing sleeve through the tip of the supporting column, so that the contact area of the impeller and the supporting column is reduced, and the rotating speed of the impeller is further improved.

Preferably, the cleaning assembly comprises a support and a scraping blade, the support is arranged on the outer side of the filter element, a connecting portion penetrating through the support is arranged at the upper end of the impeller, the connecting portion is connected with the support, the scraping blade is arranged on the support, and the scraping blade can clean the raw water cavity and/or the filter element.

According to the technical scheme, the impeller is connected with the support, the scraping blade synchronously rotates along with the support, and when the scraping blade faces the filter element, the scraping blade can clean the outer side of the filter element; if the doctor-bar extends to former water cavity, filter core both sides, former water cavity and filter core alright wasing simultaneously of doctor-bar, in addition, the doctor-bar is in the pivoted while, also can drive the rivers rotation of former water intracavity for rotatory rivers wash former water cavity and/or filter core once more.

Preferably, the lower end of the support is provided with a positioning hole, a positioning block matched with the positioning hole is arranged on the connecting portion, and the positioning hole can circumferentially limit the positioning block.

Through above-mentioned technical scheme, after the locating piece inserted the locating hole, realize being connected of support and impeller for the gravity of support is all acted on the impeller, has reduced the frictional force of support with other parts.

Preferably, the support is provided with a spiral rib, and after the support rotates, the spiral rib can generate a vortex in the raw water cavity.

According to the technical scheme, when the impeller drives the support to rotate, the spiral ribs stir water in the raw water cavity, so that water flow forms a rapidly rotating vortex in the raw water cavity, and the vortex can clean impurities attached to the filter element and the raw water cavity, so that the cleaning effect is improved; and the highly rotational water flow can increase the water flow discharge efficiency.

In summary, compared with the prior art, the beneficial effects of the utility model are as follows: the cleaning assembly has higher rotating speed, so that the cleaning effect and the sewage discharge efficiency of the filter element and/or the raw water cavity are effectively improved; the impeller has high utilization rate of water flow, can effectively improve the rotating speed of the impeller and increase the driving force of the impeller; structural design is reasonable, and the frictional force of impeller, support is less, can effectively guarantee the rotational speed of impeller, support.

Drawings

FIG. 1 is a schematic diagram of a full-section structure of the background art (the arrow direction is the water flow moving direction);

FIG. 2 is an external view of the embodiment;

FIG. 3 is a schematic view in full section of FIG. 2;

FIG. 4 is a schematic partial cross-sectional view of FIG. 3;

FIG. 5 is a schematic structural view of the embodiment after the support is connected with the supporting member;

FIG. 6 is a schematic view in full section of FIG. 5;

FIG. 7 is a schematic view of the structure of an impeller in the embodiment;

FIG. 8 is a schematic bottom view of FIG. 7;

FIG. 9 is another structural diagram of the impeller in the embodiment;

FIG. 10 is a schematic structural diagram of a support member according to an embodiment;

FIG. 11 is a schematic structural diagram of a cleaning assembly according to an embodiment.

Reference numerals: 1. a pre-filter; 11. a raw water cavity; 12. a water inlet flow channel; 13. a water outlet flow channel; 14. a limiting block; 2. a filter element; 3. a blowoff valve;

100. a support; 110. a flow guide hole; 120. an inner cavity; 121. a yielding groove; 122. reserving a gap; 130. flanging;

200. an impeller; 210. a drain hole; 220. a baffle plate; 230. mounting holes; 231. a reinforcing sleeve; 240. a connecting portion; 241. positioning blocks; 250. a blade;

300. cleaning the assembly; 310. a support; 311. positioning holes; 312. a spiral rib; 320. scraping a blade;

400. a support member; 410. a support pillar; 411. a pointed tip.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The present invention will be described in further detail with reference to the accompanying drawings.

A kind of pre-filter uses the rinser, as shown in fig. 1-11, this rinser includes the support 100, impeller 200 and washes the assembly 300, the support 100 is set up in the raw water cavity 11 and separates the raw water cavity 11 into two parts up and down, and the support 100 locates under the filter element 2, the outside of the support 100 has guiding holes 110; the impeller 200 is rotatably arranged in the support 100, a drain hole 210 communicated with the diversion hole 110 is formed in the impeller 200, the impeller 200 is connected with the cleaning assembly 300, and the cleaning assembly 300 is arranged on the outer side of the filter element 2 and can clean the raw water cavity 11 and/or the filter element 2; the guide holes 110 can guide water toward the impeller 200, thereby driving the impeller 200 to rotate.

The outside of support 100 is provided with turn-ups 130, is provided with the stopper 14 that provides the support to turn-ups 130 in the former water cavity 11, and stopper 14 circumference interval distribution is in former water cavity 11.

Further, an inner cavity 120 communicated with the diversion hole 110 is formed in the support 100, the impeller 200 is rotatably arranged in the inner cavity 120, a baffle 220 is arranged on one side of the impeller 200 close to an opening of the inner cavity 120, the outer side of the baffle 220 is close to the inner cavity 120, and the drainage hole 210 is arranged on the baffle 220; as shown in fig. 7 to 9, the impeller 200 has the blades 250, and the blades 250 are close to the guide hole 110, and the blades 250 may be in a straight or curved state as long as the flow of water guided through the guide hole 110 can be interlaced with the blades 250.

Preferably, the drain hole 210 is located at the center of the baffle 220; the plurality of diversion holes 110 are circumferentially arranged at intervals, and the plurality of diversion holes 110 are obliquely arranged.

One side of the inner cavity 120 close to the baffle 220 is provided with a relief groove 121, and a reserved gap 122 is formed between the relief groove 121 and the baffle 220.

The cleaning device also comprises a support member 400, wherein the support member 400 is connected in the pre-filter 1, and of course, the support member 400 can also be connected in the raw water cavity 11 as long as the support member 400 can be limited; the upper end of support piece 400 is provided with support column 410, and mounting hole 230 has been seted up to the bottom of impeller 200, and support piece 400 can stretch into in mounting hole 230 and spacing to impeller 200 circumference, and impeller 200 can rotate along the central axis of support column 410.

The mounting hole 230 is provided with a reinforcing sleeve 231 therein, and the upper end of the supporting column 410 is provided with a tip 411, wherein the tip 411 can extend into the reinforcing sleeve 231 and abut against the reinforcing sleeve 231. To increase the service life of the reinforcing sleeve 231 and the supporting column 410, the reinforcing sleeve 231 and the supporting column 410 may be made of metal or wear-resistant material.

The cleaning assembly 300 comprises a bracket 310 and a scraper 320, the bracket 310 is arranged outside the filter element 2, the upper end of the impeller 200 is provided with a connecting part 240 penetrating through the support 100, the connecting part 240 is connected with the bracket 310, the scraper 320 is arranged on the bracket 310, and the scraper 320 can clean the raw water cavity 11 and/or the filter element 2; when the end part of the scraping blade 320 is close to the outer side wall of the filter element 2, the scraping blade 320 can clean the filter element 2; when the scraping blade 320 is only arranged on the outer side of the bracket 310, the scraping blade 320 can clean the raw water chamber 11; in this embodiment, the inner side and the outer side of the bracket 310 are both provided with the scraping blades 320, the outer scraping blades 320 can be close to the cavity wall of the raw water cavity 11, and the inner scraping blades 320 are close to the filter element 2, so that the scraping blades 320 can clean the raw water cavity 11 and the filter element 2 at the same time.

Further, the lower end of the bracket 310 is provided with a positioning hole 311, a positioning block 241 matched with the positioning hole 311 is arranged on the connecting part 240, the positioning block 241 can be inserted into the positioning hole 311, and the positioning hole 311 can limit the positioning block 241 in the circumferential direction; alternatively, the connection portion 240 and the positioning hole 311 may be connected by bonding or snapping.

The bracket 310 is provided with a spiral rib 312, and the spiral rib 312 can generate a vortex in the raw water chamber 11 after the bracket 310 rotates.

The working principle is as follows:

after the blowoff valve 3 at the bottom of the pre-filter 1 is opened, the water flow (sewage mixed by impurities and raw water) in the raw water cavity 11 is discharged through the blowoff valve 3;

because the raw water cavity 11 is partitioned by the support 100, water flow in the upper half part of the raw water cavity 11 can only enter the lower half part of the raw water cavity 11 through the diversion hole 110, so that all the water flow in the raw water cavity 11 passes through the diversion hole 110 and then impacts the impeller 200, the impeller 200 is driven to rotate, the rotating impeller 200 drives the support 310 to rotate, and the scraping blade 320 rotating along with the support 310 can clean the outer side of the filter element 2 and the cavity wall of the raw water cavity 11;

the water flow entering the inner cavity 120 through the diversion hole 110 impacts the impeller 200 and then flows out through the drainage hole 210, so that the rotation stability of the impeller 200 is ensured, and the remaining extremely small amount of water flow leaks out through the reserved gap 122, so that the utilization rate of the water flow is improved, the driving force of the impeller 200 on the support 310 is greatly enhanced, and the integral rotating speed of the impeller 200, the support 310 and the scraper 320 is directly improved; when the impeller 200 drives the bracket 310 to rotate, the spiral ribs 312 stir water in the raw water cavity 11, so that water flow forms a fast-rotating vortex in the raw water cavity 11, the vortex can perform secondary cleaning on impurities attached to the filter element 2 and the raw water cavity 11, and further cleaning effects of the filter element 2 and the raw water cavity 11 are improved.

The impeller 200 supports the weight of the bracket 310 and the scraping blade 320, and the impeller 200 is in contact with the tip 411 through the reinforcing sleeve 231, so that the friction force between the impeller 200 and the bracket 310 is effectively reduced, and the high-speed rotation of the impeller 200 is guaranteed.

The above description is intended to be illustrative of the present invention and not to limit the scope of the utility model, which is defined by the claims appended hereto.

Claims

1. A belt cleaning device for prefilter which characterized in that: the cleaning device comprises a support (100), an impeller (200) and a cleaning assembly (300), wherein the support (100) is arranged in a raw water cavity (11) and divides the raw water cavity (11), and a diversion hole (110) is formed in the support (100); the impeller (200) is rotatably arranged in the support (100), a drain hole (210) communicated with the diversion hole (110) is formed in the impeller (200), the impeller (200) is connected with a cleaning assembly (300), and the cleaning assembly (300) is arranged on the outer side of the filter element (2) and can clean the raw water cavity (11) and/or the filter element (2); the diversion hole (110) can guide water to the direction of the impeller (200) so as to drive the impeller (200) to rotate.

2. A cleaning device for a pre-filter according to claim 1, wherein: the support (100) is internally provided with an inner cavity (120) communicated with the diversion hole (110), the impeller (200) is rotatably arranged in the inner cavity (120), a baffle (220) is arranged on one side, close to the opening of the inner cavity (120), of the impeller (200), the outer side of the baffle (220) is close to the inner cavity (120), and the drainage hole (210) is formed in the baffle (220).

3. A cleaning device for a pre-filter according to claim 2, wherein: the drain hole (210) is located at the center of the baffle (220).

4. A pre-filter cleaning apparatus according to claim 2, wherein: the plurality of flow guide holes (110) are circumferentially arranged at intervals, and the plurality of flow guide holes (110) are obliquely arranged.

5. A cleaning device for a pre-filter according to claim 2, wherein: the inner chamber (120) are close to one side of baffle (220) and have seted up groove of stepping down (121), groove of stepping down (121) with reserve clearance (122) have between baffle (220).

6. A cleaning device for a pre-filter according to any one of claims 1 to 5, characterized in that: the cleaning device further comprises a supporting piece (400), the supporting piece (400) is connected into the front filter (1), a supporting column (410) is arranged on the supporting piece (400), a mounting hole (230) is formed in the bottom of the impeller (200), the supporting piece (400) can stretch into the mounting hole (230) and limit the impeller (200), and the impeller (200) can rotate along the central axis of the supporting column (410).

7. The cleaning device for the prefilter of claim 6 wherein: a reinforcing sleeve (231) is arranged in the mounting hole (230), a pointed end (411) is arranged at the upper end of the supporting column (410), and the pointed end (411) can extend into the reinforcing sleeve (231) and is attached to the reinforcing sleeve (231).

8. A cleaning device for a pre-filter according to any one of claims 1 to 5, characterized in that: wash subassembly (300) including support (310) and doctor-bar (320), support (310) set up in filter core (2) outside, impeller (200) upper end is provided with and runs through connecting portion (240) of support (100), connecting portion (240) with support (310) are connected, doctor-bar (320) set up in on support (310), just doctor-bar (320) can wash former water cavity (11) and/or filter core (2).

9. The cleaning device for the pre-filter according to claim 8, wherein: the lower end of the support (310) is provided with a positioning hole (311), a positioning block (241) matched with the positioning hole (311) is arranged on the connecting portion (240), and the positioning hole (311) can circumferentially limit the positioning block (241).

10. The cleaning device for the pre-filter according to claim 8, wherein: spiral ribs (312) are arranged on the support (310), and after the support (310) rotates, the spiral ribs (312) can generate vortices in the raw water cavity (11).