CN215232603U - Prefilter driven by water pressure to rotate and scrub - Google Patents

Abstract

The utility model relates to a leading filter of rotatory scrubbing of water pressure drive. It has solved the filter poor and awkward problem of linkage nature when washing the filter core among the prior art. It includes the filter main part, filter main part lower extreme is equipped with the blowdown subassembly that has the drain, be equipped with the filter element body in the filter main part, the filter element body circumference outside forms former water cavity and circumference inboard has the water purification chamber, filter element body circumference cover is equipped with rotatory brush cover, be equipped with rotary driving mechanism between filter element body and the rotatory brush cover, the blowdown subassembly has the blowdown overcoat that circumference rotation set up at the filter main part lower extreme, the blowdown inner core that links to each other with the filter element body is worn to be equipped with in the inboard activity of blowdown overcoat circumference, thereby it can drive the synchronous vertical lift of blowdown inner core and filter element body when blowdown overcoat circumference rotation to be equipped with between blowdown inner core and the blowdown overcoat and is linked together the spiral lift actuating mechanism of former water cavity and drain. The utility model has the advantages that: good linkage, convenient operation and convenient use.

Description

Prefilter driven by water pressure to rotate and scrub

Technical Field

The utility model relates to a filter technical field, concretely relates to through leading filter of water pressure drive rotation scrubbing.

Background

With the continuous improvement of the living standard of people, people pay more and more attention to the quality of their own life, and the quality of household water is also paid more and more attention by people, although tap water is subjected to water purification measures such as sterilization, filtration and disinfection in a tap water plant before being supplied to reach the drinking water standard, the purification measures of the tap water plant are only basic measures, and in the process of supplying the tap water, the tap water flows through a tap water supply pipeline with long service time, and because the tap water in the pipeline is not cleaned for a long time, more dirt is always generated, and the tap water supplied to families often contains a plurality of bacteria and pollutants, so more and more families begin to use drinking water filters. Impurities are left on the filter screen in the using process of the filter, so that the traditional filter screen needs to be detached, washed and cleaned regularly by a user, the operation is troublesome, and a drain valve needs to be manually opened during cleaning and draining, so that the filter is very inconvenient; meanwhile, when the existing filter is washed, the linkage of the internal structure is poor, the phenomenon of blocking is often caused, and the use is inconvenient.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the present applicant filed a new utility model on 17.05.2019, CN201920716884.9, comprising an outer hollow cylinder, the upper end of the outer cylinder is connected with an end cover with a water inlet and a water outlet, the lower end of the outer cylinder is provided with a sewage outlet, a cylindrical filter element which is coaxial with the outer cylinder body is arranged in the outer cylinder body, a filter screen is circumferentially covered on the filter element, the filter element and the outer cylinder body are relatively fixed in the axial direction, the scraping and washing cylinder body which is positioned in the outer cylinder body and can axially reciprocate up and down and circumferentially rotate is sleeved on the circumferential outer side of the filter element, the scraping and washing cylinder body is connected with the end cover through a lifting mechanism arranged in the middle of the filter element, and the bottom side of the scraping and washing barrel is provided with a sewage discharge structure which can be communicated with a sewage discharge outlet when the scraping and washing barrel is lifted, and the circumferential side part of the scraping and washing barrel is provided with a scraping and washing assembly.

Above-mentioned scheme has solved to a certain extent among the prior art filter's filter screen and has torn open and wash inconvenient and the drain trouble problem of opening, but this scheme still has a great deal of not enough, for example: when the filter element is washed, the linkage of the internal structure is poor, the phenomenon of blocking is often caused, and the use is inconvenient.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a leading filter that reasonable in design, convenient to use's the rotatory scrubbing of water pressure drive.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the pre-filter rotationally scrubbed by water pressure drive comprises a filter main body, a sewage discharge component with a sewage discharge outlet is arranged at the lower end of the filter main body, a filter element body is axially and movably arranged in the filter main body, a raw water cavity is formed at the circumferential outer side of the filter element body, a purified water cavity is arranged at the circumferential inner side of the filter element body, a rotary brush sleeve is movably sleeved at the circumferential outer side of the filter element body, a rotary drive mechanism which can drive the rotary brush sleeve to circumferentially rotate relative to the filter element body when the raw water cavity is communicated with the sewage discharge outlet is arranged between the filter element body and the rotary brush sleeve, the sewage discharge component is provided with a sewage discharge outer sleeve which is circumferentially and rotatably arranged at the lower end of the filter main body, and a sewage discharge inner core connected with the filter element body is movably penetrated at the circumferential inner side of the sewage discharge outer sleeve, and a spiral lifting driving mechanism which can drive the sewage disposal inner core and the filter element body to synchronously and vertically lift when the sewage disposal outer sleeve rotates in the circumferential direction is arranged between the sewage disposal inner core and the sewage disposal outer sleeve, so that the raw water cavity is communicated with the sewage disposal port. Make spiral lift actuating mechanism drive blowdown inner core and the synchronous vertical rising of filter element body through rotating the blowdown overcoat to make intercommunication each other between former water cavity and the drain, thereby utilize rotary drive mechanism to drive rotatory brush cover and scrub for the circumference of filter element body rotation realization, and because mutual intercommunication between former water cavity and the drain links to each other, consequently the sewage after the brush-washing passes through the drain and discharges, not only linkage nature is good, and convenient operation, it is more convenient to scrub the blowdown, excellent in use effect.

In foretell leading filter of brushing through water pressure drive rotation, the filter main part includes that the lower extreme has the filtration casing of blowdown mounting hole, and blowdown overcoat circumferential direction and axial positioning set up in the blowdown mounting hole, and blowdown overcoat upper end and blowdown mounting hole circumferential seal and lower extreme extend to the filtration casing outside, filter casing upper end and be connected with the filter copper head that has the inlet tube that is linked together with former water cavity and the outlet pipe that is linked together with the water purification chamber.

In foretell leading filter of brushing through water pressure drive rotation, spiral lift actuating mechanism is including setting up the threaded connection subassembly between blowdown overcoat and blowdown inner core, and blowdown inner core upper end is sealed and links to each other with the filter element joint, has the blowdown water inlet that is linked together with the drain outside blowdown inner core upper end, and is equipped with axial direction subassembly between filter element and the filter shell. The upper end of the sewage disposal inner core is closed and is connected with the filter core body in a clamping way, so that the filter core body can be driven to synchronously lift when the sewage disposal inner core body lifts.

In the above-mentioned leading filter that brushes through water pressure drive rotation, threaded connection subassembly is including setting up the internal thread or the external screw thread in blowdown inner core circumference outside, and blowdown overcoat circumference inboard has external screw thread or internal thread, and blowdown overcoat and blowdown inner core screw thread link to each other, is equipped with the blowdown knob that links to each other with the blowdown overcoat at the filter housing lower extreme. The pollution discharge outer sleeve synchronously rotates by rotating the pollution discharge knob, so that the pollution discharge inner core is in threaded lifting, and the linkage is good.

In the above-mentioned leading filter that brushes through water pressure drive rotation, axial direction subassembly includes a plurality of setting at the guide projection of filter element body upper end circumference outside, and filter shell circumference inboard is equipped with a plurality of axial extension and sets up and respectively with the guide groove of guide projection one-to-one, and guide projection and guide groove slide and link to each other. The axial guide assembly can keep the filter element body stable in the lifting process.

In the preposed filter which is rotationally scrubbed by water pressure drive, the circumferential inner side of the copper head of the filter is provided with a water inlet and outlet flow guide piece, the upper end of the filter element body is movably arranged in the flow guide cylinder body on the circumferential inner side of the water inlet and outlet flow guide piece in a penetrating way, the circumferential outer side of the upper end of the filter element body is provided with an annular sealing surface corresponding to the flow guide cylinder body, the raw water cavity is communicated between the water inlet and outlet flow guide piece and the flow guide cylinder body, and the purified water cavity is communicated with the inside of the flow guide cylinder body.

In foretell leading filter who brushes through water pressure drive rotation, business turn over water conservancy diversion spare circumference outside is equipped with water conservancy diversion spare inlet opening and water conservancy diversion spare apopore respectively, water conservancy diversion spare inlet opening communicates between business turn over water conservancy diversion spare and water conservancy diversion barrel, and water conservancy diversion spare apopore and the inside intercommunication of water conservancy diversion barrel, the sealed water inlet water conservancy diversion mounting that is equipped with of inlet tube circumference inboard of filter copper head and water inlet water conservancy diversion mounting one end are installed in the water conservancy diversion spare inlet opening, and the sealed water outlet pipe circumference inboard of filter copper head is equipped with water conservancy diversion mounting and water conservancy diversion mounting one end is installed in the water conservancy diversion spare outlet opening, and business turn over water conservancy diversion spare, water inlet water conservancy diversion mounting and water conservancy diversion mounting are made by environmental protection plastic materials. The arrangement of the water inlet and outlet guide piece, the water inlet guide fixing piece and the water outlet guide fixing piece can prevent water flow from directly contacting with the copper head of the filter, so that harmful substances are isolated, and the pollution of water quality is avoided.

In foretell leading filter of brushing through water pressure drive rotation, rotary driving mechanism is including setting up the water conservancy diversion disk body in the filter element body upper end circumference outside, the direction lug sets up in water conservancy diversion disk body circumference outside, water conservancy diversion disk body circumference has the water conservancy diversion water course of a plurality of slopes settings, be equipped with the impeller corresponding to the water conservancy diversion water course between water conservancy diversion disk body and the rotary brush cover, the impeller circumference outside has a plurality of bellying that support to lean on in filtering shell inner wall and filters the internal diameter grow gradually that the shell was provided with the impeller department to the upper end, impeller and rotary brush cover mutual joint set up and equal circumferential direction and axial movable sleeve locate the filter element body circumference outside, the blowdown inner core upper end circumference outside has the spacing portion of annular corresponding with rotary brush cover lower extreme, when water conservancy diversion disk body and impeller contact, form the clearance between spacing portion of annular and the rotary brush cover lower extreme. Water flows to the impeller through the diversion water channel on the diversion disc body and pushes the impeller to rotate, so that the rotary brush sleeve connected with the impeller in a clamped mode can rotate synchronously, linkage is good, and resistance can be prevented from being generated when the rotary brush sleeve rotates due to the arrangement of the gap.

In foretell leading filter of brushing through water pressure drive rotation, rotatory brush cover week outside has the vertical brace rod of a plurality of vertical settings, and vertical brace rod one side all has the slope upstream face that sets up towards the filter element body slope. The negative pressure area is formed on the back side of the inclined water-facing surface when water flow quickly passes through the inclined water-facing surface, the water flow on the inner side of the circumferential direction of the filter element body supplements pressure, and the water flow flows from inside to outside, so that the purpose of reversely washing the filter element body is realized, and the principle is similar to the cross flow wind blade principle in a fan.

In foretell leading filter who scrubs through water pressure drive rotation, filter copper head upper end is equipped with manometer installation shaft hole, manometer installation shaft hole circumferential direction is equipped with the rotatable manometer fixed axle that extends to in the business turn over water guide, rotatable manometer fixed axle upper end is connected with the manometer that is the slope and sets up, filter copper head and filter housing outside all cover the shell body, and shell body upper end rotation is equipped with spherical top cap, and the spherical top cap outside has the fixed cover mounting hole, and the joint has the fixed cover of manometer in the fixed cover mounting hole, and the manometer setting is inboard at the fixed cover circumference of manometer. The setting of rotatable manometer fixed axle can make fixed cover of manometer and manometer can carry out circumference free rotation, and the nimble installation environment that adapts to different water inlet directions.

Compared with the prior art, the utility model has the advantages of: reasonable in design, linkage nature is good, utilize the blowdown knob to drive blowdown overcoat circumferential direction, thereby make the blowdown inner core with blowdown overcoat threaded connection drive the vertical rising of filter element body and make the ring seal face that is located the filter element body upper end and business turn over water conservancy diversion spare bottom compress tightly sealed, and make and communicate each other between raw water cavity and the drain, this moment, thereby rivers that get into from the inlet tube rotate at filter element body circumference through water conservancy diversion water course flow direction impeller and scrub, and the sewage after the brush-washing gets into blowdown inner core circumference inboard through the blowdown water inlet and gets rid of through the drain, high durability and convenient operation, linkage nature is good and excellent in use effect.

Drawings

Fig. 1 is a sectional view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the sewage disposal inner core of the present invention;

FIG. 3 is a schematic view of the structure of the drainage sheath of the present invention;

fig. 4 is a schematic structural diagram of a filter element body in the present invention;

fig. 5 is a schematic structural view of an impeller in the present invention;

fig. 6 is a schematic structural view of a filter housing according to the present invention;

FIG. 7 is a schematic view of a rotary brush sleeve structure according to the present invention;

fig. 8 is a schematic view of the overall structure of the present invention.

In the figure, a filter body 1, a filter element body 11, a raw water cavity 12, a purified water cavity 13, a filter shell 14, a sewage discharge mounting hole 15, a filter copper head 16, a water inlet pipe 161, a water outlet pipe 162, a water inlet flow guide fixing part 163, a water outlet flow guide fixing part 164, a pressure meter mounting shaft hole 165, a rotatable pressure meter fixing shaft 166, an annular sealing surface 17, a pressure meter 18, an outer shell 19, a spherical top cover 191, a fixing cover mounting hole 192, a pressure meter fixing cover 193, a sewage discharge assembly 2, a sewage discharge outlet 21, a sewage discharge outer sleeve 22, a sewage discharge inner core 23, a sewage discharge water inlet 231, a rotary brush sleeve 3, a vertical support rib 31, an inclined upstream surface 32, a rotary driving mechanism 4, a flow guide disc body 41, a water guide channel 42, an impeller 43, a bulge 431, an annular limiting part 44, a gap 45, a threaded connection assembly 5, an internal thread 51, an external thread 52, a sewage discharge knob 53, an axial guide assembly 6, a guide lug 61, a rotary guide lug boss 61, a rotary guide assembly 6, a rotary guide assembly 3, a rotary guide assembly, a rotary guide plate, a rotary guide plate, a rotary plate, a, A guide groove 62, a water inlet and outlet guide member 7, a guide cylinder 71, a guide member water inlet hole 72, a guide member water outlet hole 73,

Detailed Description

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

As shown in figures 1-8, the pre-filter rotationally scrubbed by water pressure driving comprises a filter body 1, a sewage discharge component 2 with a sewage discharge outlet 21 is arranged at the lower end of the filter body 1, a filter core body 11 is axially and movably arranged in the filter body 1, a raw water cavity 12 is formed at the circumferential outer side of the filter core body 11, a purified water cavity 13 is formed at the circumferential inner side of the filter core body 11, a rotary brush sleeve 3 is movably sleeved at the circumferential outer side of the filter core body 11, a rotary driving mechanism 4 capable of driving the rotary brush sleeve 3 to circumferentially rotate relative to the filter core body 11 when the raw water cavity 12 is communicated with the sewage discharge outlet 21 is arranged between the filter core body 11 and the rotary brush sleeve 3, the sewage discharge component 2 is provided with a sewage discharge outer sleeve 22 which is circumferentially and rotatably arranged at the lower end of the filter body 1, a sewage discharge inner core 23 connected with the filter core body 11 is movably penetrated at the circumferential inner side of the sewage discharge outer sleeve 22, and a sewage discharge inner core 23 and a sewage discharge outer sleeve 22 are arranged between the sewage discharge inner core 23 and the sewage discharge outer sleeve 22 and capable of driving the sewage discharge inner core 23 to synchronously vertically lift and the filter core body 11 when the sewage discharge outer sleeve 22 are circumferentially rotated so as to circumferentially The water cavity 12 is communicated with the sewage draining exit 21 by a spiral lifting driving mechanism 4. The rotary pollution discharge outer sleeve 22 drives the pollution discharge inner core 23 to rotate and ascend in a threaded manner through the spiral lifting driving mechanism so as to drive the filter core body 11 to ascend synchronously and further enable the raw water cavity 12 and the pollution discharge opening 21 to be communicated with each other, at the moment, the rotary driving mechanism is utilized to drive the rotary brush sleeve 3 to rotate and scrub in the circumferential direction of the filter core body 11, and the sewage after being brushed is discharged through the pollution discharge opening 21 communicated with the raw water cavity 12.

Wherein, filter body 1 includes that the lower extreme has the filtration casing 14 of blowdown mounting hole 15, and blowdown overcoat 22 circumferential direction and axial positioning set up in blowdown mounting hole 15, and blowdown overcoat 22 upper end and 15 circumferential seal of blowdown mounting hole and lower extreme extend to the filtration casing 14 outside, and the filter copper head 16 that has the inlet tube 161 that is linked together with former water cavity 12 and the outlet pipe 162 that is linked together with water purification cavity 13 is connected to filtration casing 14 upper end. The upper end of the pollution discharge jacket 22 is provided with a support ring body, the support ring body is tightly attached to the upper end face of the pollution discharge mounting hole 15 to form sealing, water flow is prevented from directly flowing out through the pollution discharge mounting hole 15, and the pollution discharge jacket 22 is circumferentially provided with a water blocking ring body tightly attached to the circumferential inner side of the pollution discharge mounting hole 15.

Visibly, the spiral lifting driving mechanism comprises a threaded connection assembly 5 arranged between the sewage discharging outer sleeve 22 and the sewage discharging inner core 23, the upper end of the sewage discharging inner core 23 is closed and is connected with the filter core body 11 in a clamping manner, a sewage discharging water inlet 231 communicated with the sewage discharging port 21 is arranged on the outer side of the upper end of the sewage discharging inner core 23, and an axial guide assembly 6 is arranged between the filter core body 11 and the filter shell 14. The sewage inlet 231 is located at the circumferential inner side of the sewage outer sleeve 22, and after the sewage inner core 23 vertically ascends and descends, the sewage inlet 231 is exposed out of the raw water cavity 12, so that the raw water cavity 12 is communicated with the sewage outlet 21.

Obviously, the screw coupling assembly 5 includes an internal thread 51 or an external thread 52 provided at the circumferential outer side of the pollution discharging core 23, the pollution discharging sheath 22 has the external thread 52 or the internal thread 51 at the circumferential inner side, and the pollution discharging sheath 22 and the pollution discharging core 23 are screw-coupled, and a pollution discharging knob 53 coupled to the pollution discharging sheath 22 is provided at the lower end of the filter housing 14. When the pollution discharge knob 53 rotates, the pollution discharge outer sleeve 22 is driven to synchronously rotate in the circumferential direction, at the moment, the pollution discharge outer sleeve 22 does not generate lifting action, and the pollution discharge inner core 23 is lifted by screw threads.

Further, the axial guiding assembly 6 includes a plurality of guiding protrusions 61 arranged on the circumferential outer side of the upper end of the filter element body 11, a plurality of guiding grooves 62 axially extending and respectively corresponding to the guiding protrusions 61 one to one are arranged on the circumferential inner side of the filter housing 14, and the guiding protrusions 61 are connected with the guiding grooves 62 in a sliding manner. The axial guide assembly 6 is arranged to keep the filter element body 11 stable and prevent the lifting dislocation in the lifting process.

Specifically, the circumferential inner side of the filter copper head 16 is provided with a water inlet and outlet flow guide member 7, the upper end of the filter element body 11 is movably arranged in a flow guide cylinder body 71 on the circumferential inner side of the water inlet and outlet flow guide member 7, the circumferential outer side of the upper end of the filter element body 11 is provided with an annular sealing surface 17 corresponding to the flow guide cylinder body 71, the raw water cavity 12 is communicated between the water inlet and outlet flow guide member 7 and the flow guide cylinder body 71, and the purified water cavity 13 is communicated with the inside of the flow guide cylinder body 71. When the sewage discharging inner core 23 is in thread lifting, the filter core body 11 is synchronously lifted, the annular sealing surface 17 is abutted against the lower end surface of the water inlet and outlet flow guide piece 7 and is pressed tightly, and water flow entering during brushing is kept to pass through the flow guide disc body 41.

Furthermore, a water guide inlet hole 72 and a water guide outlet hole 73 are respectively arranged on the circumferential outer side of the water inlet and outlet water guide member 7, the water guide inlet hole 72 is communicated between the water inlet and outlet water guide member 7 and the water guide cylinder 71, the water guide outlet hole 73 is communicated with the inside of the water guide cylinder 71, a water inlet guide fixing member 163 is hermetically arranged on the circumferential inner side of the water inlet pipe 161 of the filter copper head 16, one end of the water inlet guide fixing member 163 is installed in the water guide inlet hole 72, a water outlet guide fixing member 164 is hermetically arranged on the circumferential inner side of the water outlet pipe 162 of the filter copper head 16, one end of the water outlet guide fixing member 164 is installed in the water guide outlet hole 73, and the water inlet and outlet water guide member 7, the water inlet guide fixing member 163 and the water outlet guide fixing member 164 are all made of an environment-friendly plastic material. The arrangement of the water inlet and outlet guide member 7, the water inlet guide fixing member 163 and the water outlet guide fixing member 164 is used for preventing the inlet and outlet water flow from directly contacting the filter copper head 16, so that harmful substances are isolated, and the water quality is prevented from being polluted.

More specifically, the rotary driving mechanism 4 comprises a deflector body 41 arranged on the circumferential outer side of the upper end of the filter element body 11, the guiding convex block 61 is arranged on the circumferential outer side of the deflector body 41, the deflector body 41 is provided with a plurality of inclined water guiding channels 42 in the circumferential direction, an impeller 43 corresponding to the water guiding channels 42 is arranged between the deflector body 41 and the rotary brush sleeve 3, the circumferential outer side of the impeller 43 is provided with a plurality of convex parts 431 abutting against the inner wall of the filter shell 14, the inner diameter of the filter shell 14 from the position where the impeller 43 is arranged to the upper end is gradually increased, the impeller 43 and the rotary brush sleeve 3 are mutually clamped and are circumferentially rotated and axially movably sleeved on the circumferential outer side of the filter element body 11, the circumferential outer side of the upper end of the sewage disposal core 23 is provided with an annular limiting part 44 corresponding to the lower end of the rotary brush sleeve 3, when the deflector body 41 and the impeller 43 are in contact, a gap 45 is formed between the annular stopper 44 and the lower end of the rotary brush holder 3. The water flow passing through the water guide channel 42 flows towards the impeller 43, so that the impeller 43 drives the rotary brush sleeve 3 to synchronously rotate, and the annular limiting part 44 is used for preventing the impeller 43 from rotating in the daily filtering process and only can rotate when being impacted by water pressure; the provision of the gap 45 here prevents drag on the rotation of the rotatable brush sleeve 3.

In detail, the circumferential outer side of the rotary brush sleeve 3 is provided with a plurality of vertical supporting ribs 31 which are vertically arranged, and one side of each vertical supporting rib 31 is provided with an inclined upstream surface 32 which is obliquely arranged towards the filter element body 11. By the arrangement, when water flow quickly passes through the inclined upstream face 32, a negative pressure area is formed on the back side of the inclined upstream face 32, the circumferential inner side of the filter element body 11 supplements pressure with the water flow, and the purpose of reversely washing the filter element body is achieved, and the principle is similar to that of a transverse flow fan in a fan.

Preferably, the upper end of the filter copper head 16 is provided with a pressure gauge mounting shaft hole 165, the pressure gauge mounting shaft hole 165 is circumferentially provided with a rotatable pressure gauge fixing shaft 166 extending into the water inlet and outlet guide member 7 in a rotating manner, the upper end of the rotatable pressure gauge fixing shaft 166 is connected with a pressure gauge 18 obliquely arranged, the outer sides of the filter copper head 16 and the filter shell 14 are respectively covered with the outer shell 19, the upper end of the outer shell 19 is rotatably provided with a spherical top cover 191, the outer side of the spherical top cover 191 is provided with a fixing cover mounting hole 192, a pressure gauge fixing cover 193 is clamped in the fixing cover mounting hole 192, and the pressure gauge 18 is arranged on the circumferential inner side of the pressure gauge fixing cover 193. The arrangement of the rotatable pressure gauge fixing shaft 166 can enable the pressure gauge fixing cover 193 and the pressure gauge 18 to rotate freely in the circumferential direction, and the installation environment of different water inlet directions can be flexibly adapted.

In summary, the principle of the present embodiment is: the pollution discharge outer sleeve 22 is driven to rotate in the circumferential direction in the pollution discharge mounting hole 15 by rotating the pollution discharge knob 53, the pollution discharge inner core 23 is driven to ascend when the pollution discharge outer sleeve 22 rotates in the circumferential direction due to the fact that the pollution discharge inner core 23 is connected with the pollution discharge outer sleeve 22 through threads, the upper end of the pollution discharge inner core 23 is connected with the filter core body 11 in a clamping mode, the filter core body 11 ascends synchronously along with the pollution discharge inner core 23, when the annular sealing surface 17 at the upper end of the filter core body 11 is abutted against and pressed against the bottom of the water inlet and outlet flow guide piece 7, the pollution discharge water inlet 231 on the pollution discharge inner core 23 is exposed in the raw water cavity 12, the raw water cavity 12 is communicated with the pollution discharge outlet 21, at the moment, water entering through the water inlet flows towards the impeller 43 through the flow guide water channel 42, so that the impeller 43 drives the rotary brush sleeve 3 to synchronously rotate and scrub in the circumferential direction of the filter core body 11, and the scrubbed sewage is discharged through the pollution discharge outlet 21.

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.

Although the filter body 1, the filter element body 11, the raw water chamber 12, the purified water chamber 13, the filter housing 14, the sewage installation hole 15, the filter copper head 16, the water inlet pipe 161, the water outlet pipe 162, the water inlet diversion fixing member 163, the water outlet diversion fixing member 164, the pressure gauge installation shaft hole 165, the rotatable pressure gauge fixing shaft 166, the annular sealing surface 17, the pressure gauge 18, the outer housing 19, the spherical top cover 191, the fixing cover installation hole 192, the pressure gauge fixing cover 193, the sewage discharge assembly 2, the sewage discharge outlet 21, the sewage discharge outer sleeve 22, the sewage discharge inner core 23, the sewage discharge water inlet 231, the rotary brush sleeve 3, the vertical support rib 31, the inclined upstream surface 32, the rotary driving mechanism 4, the guide disc body 41, the guide water channel 42, the impeller 43, the annular limiting part 44, the gap 45, the threaded connection assembly 5, the internal thread 51, the external thread 52, the sewage discharge knob 53, the axial guide assembly 6, the axial guide assembly 5, the filter housing, the filter, The terms guiding protrusion 61, guiding groove 62, water inlet and outlet flow guide 7, flow guide cylinder 71, flow guide water inlet hole 72, flow guide water outlet hole 73, etc., but do not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. The utility model provides a leading filter of rotatory scrubbing of water pressure drive, includes filter body (1), filter body (1) lower extreme be equipped with blowdown subassembly (2) that have drain (21), filter body (1) in axial activity be equipped with filter core body (11), filter core body (11) circumference outside form former water cavity (12) and the circumference inboard has water purification chamber (13), filter core body (11) circumference outside activity cover be equipped with rotary brush cover (3), filter core body (11) and rotary brush cover (3) between be equipped with and can drive rotary brush cover (3) for rotary drive mechanism (4) of filter core body (11) circumference rotation when former water cavity (12) is linked together with drain (21), its characterized in that, blowdown subassembly (2) have a blowdown overcoat (22) that circumference rotation set up at filter body (1) lower extreme, blowdown overcoat (22) circumference inboard activity wear to be equipped with blowdown inner core (23) that link to each other with filter element body (11), just blowdown inner core (23) and blowdown overcoat (22) between be equipped with thereby can drive the synchronous vertical lift of blowdown inner core (23) and filter element body (11) when blowdown overcoat (22) circumferential direction and be linked together spiral lift actuating mechanism with former water cavity (12) and drain (21).

2. The prefilter of a water pressure driven rotary scrubber according to claim 1 wherein said filter body (1) includes a filter housing (14) having a drain fitting hole (15) at its lower end, said drain sleeve (22) being circumferentially rotatable and axially positionable within said drain fitting hole (15), said drain sleeve (22) having an upper end circumferentially sealed from said drain fitting hole (15) and a lower end extending outside said filter housing (14), said filter housing (14) having an upper end connected to a filter head (16) having an inlet tube (161) communicating with said raw water chamber (12) and an outlet tube (162) communicating with said clean water chamber (13).

3. The prefilter of a water pressure driven rotary brush according to claim 2 wherein the screw-type lifting driving mechanism comprises a screw connection assembly (5) arranged between a sewage discharging jacket (22) and a sewage discharging inner core (23), the upper end of the sewage discharging inner core (23) is closed and is connected with the filter core body (11) in a clamping manner, a sewage discharging water inlet (231) communicated with the sewage discharging port (21) is arranged outside the upper end of the sewage discharging inner core (23), and an axial guide assembly (6) is arranged between the filter core body (11) and the filter shell (14).

4. The prefilter of a hydraulically driven rotary scrubber according to claim 3 wherein the screw coupling assembly (5) comprises an internal screw (51) or an external screw (52) disposed on the outer circumferential side of the inner core (23), the inner circumferential side of the outer cover (22) has the external screw (52) or the internal screw (51), the outer cover (22) and the inner core (23) are screw-coupled, and a drain knob (53) is disposed at the lower end of the filter housing (14) and coupled to the outer cover (22).

5. The prefilter of claim 3 wherein said axial guide assembly (6) comprises a plurality of guide projections (61) disposed circumferentially outward of the upper end of the filter element (11), said filter housing (14) has a plurality of axially extending guide slots (62) disposed circumferentially inward thereof, said guide projections (61) and said guide slots (62) being slidably connected to each other, said guide projections (61) and said guide slots (62) being in one-to-one correspondence with said guide projections (61).

6. The prefilter of claim 2 or 3 or 4 or 5 which is rotationally brushed by water pressure drive, wherein the circumferential inner side of the filter copper head (16) is provided with a water inlet and outlet flow guide member (7), the upper end of the filter element body (11) is movably arranged in the flow guide cylinder body (71) of the circumferential inner side of the water inlet and outlet flow guide member (7), the circumferential outer side of the upper end of the filter element body (11) is provided with an annular sealing surface (17) corresponding to the flow guide cylinder body (71), the raw water cavity (12) is communicated between the water inlet and outlet flow guide member (7) and the flow guide cylinder body (71), and the purified water cavity (13) is communicated with the inside of the flow guide cylinder body (71).

7. The prefilter driven by water pressure to rotationally scrub according to claim 6, wherein a water inlet hole (72) and a water outlet hole (73) are respectively formed in the circumferential outer side of the water inlet and outlet guide member (7), the water inlet hole (72) is communicated between the water inlet and outlet guide member (7) and the guide cylinder (71), the water outlet hole (73) is communicated with the inside of the guide cylinder (71), a water inlet guide fixing member (163) is hermetically arranged on the circumferential inner side of the water inlet pipe (161) of the filter copper head (16), one end of the water inlet guide fixing member (163) is installed in the water inlet hole (72), a water outlet guide fixing member (164) is hermetically arranged on the circumferential inner side of the water outlet pipe (162) of the filter copper head (16), and one end of the water outlet guide fixing member (164) is installed in the guide water outlet hole (73), and the water inlet and outlet guide piece (7), the water inlet guide fixing piece (163) and the water outlet guide fixing piece (164) are all made of environment-friendly plastic materials.

8. The prefilter of a water pressure driven rotary brush according to claim 5 wherein the rotary drive mechanism (4) comprises a diversion disc body (41) disposed on the circumferential outer side of the upper end of the filter element body (11), the guide projection (61) is disposed on the circumferential outer side of the diversion disc body (41), the diversion disc body (41) has a plurality of diversion water channels (42) disposed obliquely in the circumferential direction, an impeller (43) corresponding to the diversion water channels (42) is disposed between the diversion disc body (41) and the rotary brush sleeve (3), the circumferential outer side of the impeller (43) has a plurality of protrusions (431) abutting against the inner wall of the filter housing (14) and the inner diameter of the filter housing (14) where the impeller (43) is disposed gradually increases from the inner diameter to the inner diameter, the impeller (43) and the rotary brush sleeve (3) are mutually clamped and are both circumferentially rotated and axially movably sleeved on the circumferential outer side of the filter element body (11), the circumferential outer side of the upper end of the pollution discharge inner core (23) is provided with an annular limiting part (44) corresponding to the lower end of the rotary brush sleeve (3), and when the diversion disc body (41) is contacted with the impeller (43), a gap (45) is formed between the annular limiting part (44) and the lower end of the rotary brush sleeve (3).

9. The prefilter of a hydraulically driven rotating brush according to claim 1 wherein the rotating brush holder (3) has a plurality of vertical support ribs (31) disposed vertically on the outer circumferential side, and each vertical support rib (31) has an inclined upstream surface (32) disposed obliquely toward the filter element body (11) on one side.

10. The pre-filter for hydraulically driven rotary scrubbing of claim 6, the upper end of the filter copper head (16) is provided with a pressure gauge mounting shaft hole (165), the pressure gauge mounting shaft hole (165) is circumferentially and rotatably provided with a rotatable pressure gauge fixing shaft (166) extending into the water inlet and outlet flow guide piece (7), the upper end of the rotatable pressure gauge fixing shaft (166) is connected with a pressure gauge (18) which is obliquely arranged, the outer sides of the filter copper head (16) and the filter shell (14) are covered with an outer shell (19), and the upper end of the outer shell (19) is rotatably provided with a spherical top cover (191), and the outer side of the spherical top cover (191) is provided with a fixed cover mounting hole (192), a pressure gauge fixing cover (193) is clamped in the fixing cover mounting hole (192), and the pressure gauge (18) is arranged on the inner side of the circumferential direction of the pressure gauge fixing cover (193).

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