CN115738762A - Anti-pollution PVDF ultrafiltration membrane component structure and filtering device thereof - Google Patents

Abstract

The invention discloses an anti-pollution PVDF ultrafiltration membrane filtration device in the technical field of PVDF filtration, which includes a filter barrel, a drain outlet is arranged at the upper end of the filter barrel, a water inlet is arranged at the side of the drain outlet, and a net is arranged at the upper end of the filter barrel. Water cavity, the lower end of the filter barrel is provided with a filter cavity, the filter barrel is slidably connected with a slide bar one, and the end of the slide bar one located in the filter cavity is fixedly connected with an outer scraping ring, and the arc-shaped inner wall of the outer scraping ring is provided with Slope, the end of slide bar one away from the outer scraping ring is fixedly connected with a connecting frame, the connecting frame is fixedly connected with slide bar two, and the end of slide bar two far away from the connecting frame is provided with an inner support ring, and the inner support ring is provided with a slope, filtering The bucket is also provided with a drive mechanism that can move the sealing groove away from the water purification chamber. The invention can realize the correction of the ultrafiltration membrane assembly while cleaning.

Description

An anti-pollution PVDF ultrafiltration membrane module structure and its filtration device

technical field

The invention relates to the technical field of PVDF filtration, in particular to an anti-pollution PVDF ultrafiltration membrane module structure and a filtration device thereof.

Background technique

The filtration effect of the PVDF ultrafiltration membrane will decrease after long-term use. In order to ensure the filtration effect, it is often replaced or disassembled for cleaning before filtration. However, this will lead to the need to stop the filtration work, affecting the efficiency of filtration, and due to the difference from other materials, PVDF (polyvinylidene fluoride) has the strongest toughness, low friction coefficient and wear resistance in fluoroplastics, so it can adapt to passing through Cleaning is achieved by scraping, so the existing device also has a scraping device in the filter device, which scrapes the ultrafiltration membrane module while filtering, so as to achieve the effect of cleaning, and the filtration can also be carried out at the same time.

When the existing device is cleaned, generally only the outer wall is cleaned, but because the ultrafiltration membrane module is relatively soft, when cleaning, the extrusion of the cleaning device will prevent the ultrafiltration membrane from sticking to the cleaning device, resulting in The cleaning effect is poor, and the direct scratching of the outer wall will cause the ultrafiltration membrane module not to be tightly attached to the cleaning device, resulting in poor cleaning effect. At the same time, after long-term use, the ultrafiltration membrane module deforms and shrinks under water pressure and other factors, which is also not conducive to the filtration.

Contents of the invention

The technical problem of the present invention is to provide an anti-pollution PVDF ultrafiltration membrane module structure and its filtering device, which can realize correction of the ultrafiltration membrane module while cleaning.

In order to achieve the above object, the present invention provides the following technical solutions: a pollution-resistant PVDF ultrafiltration membrane filter device, comprising a filter barrel, the upper end of the filter barrel is provided with a drain, and the side of the drain is provided with a water inlet, The inner upper end of the filter barrel is provided with a clean water cavity, the lower end of the filter barrel is provided with a filter cavity, the filter barrel is slidably connected with a slider one, and the slider one is fixedly connected to one end located in the filter cavity There is an outer scraping ring, the inner wall of the arc-shaped contour of the outer scraping ring is provided with a slope, the end of the sliding rod one away from the outer scraping ring is fixedly connected with a connecting frame, and the connecting frame is fixedly connected with a sliding rod two, the The end of the slide bar two far away from the connecting frame is provided with an inner support ring, the inner support ring is provided with an inclined surface, and the filter barrel is also provided with a driving mechanism capable of moving the sealing groove away from the water purification chamber.

As a further solution of the present invention, an extrusion cylinder is fixedly connected to the inner support ring, an upper nozzle is arranged on the extrusion cylinder, an extrusion plug is fixedly connected to the second sliding rod, and an extrusion plug is fixedly connected to the extrusion plug. The sliding connection has a fixed frame fixedly connected to the extrusion cylinder, and a spring is arranged between the fixed frame and the extrusion plug to make the fixed frame move away from the extrusion plug, and the connection position between the filter element and the water purification chamber is set There is a limit ring fixedly connected with the water purification chamber.

As a further solution of the present invention, the outer wall of the filter element is covered with a reel, and two reels are symmetrically arranged, and sliding ears are fixedly connected to the reels, and sliding shafts are slidably connected to the sliding ears. The sliding shaft is provided with a spring that can make the two reels move toward each other, one of the reels is provided with a sealing groove, and the other reel is fixedly connected with a spring that can be snapped into the sealing groove. The inner sealing protrusion, the outer scraping ring is fixedly connected with a triangular block that can make the two reels open the gap.

As a further solution of the present invention, the lower end of the filter chamber is fixedly connected with a sewage discharge ring sleeved at the lower end of the filter element, and a sewage storage tank is provided on the sewage discharge ring, and a water outlet is provided on the sewage storage tank to connect to the filter bucket Externally, the outer wall of the filter barrel is fixedly connected with a hanging shaft, and the upper limit of the hanging shaft is slidably connected with a ring, and the hanging shaft is provided with a spring that can reset the ring toward the filter barrel. The fixed connection has a sealing plug that can block the water outlet of the sewage storage tank.

As a further solution of the present invention, a fixed block is fixedly connected to the filter bucket, and a sliding column is slidably connected to the upper limit of the fixed block. The end of the sliding column close to the ring is a round head, and the outer wall of the sliding column covers There is a spring that can make the sliding post return to the direction of the ring.

As a further solution of the present invention, the drive mechanism includes a reel that is rotatably connected to the lower surface of the filter barrel through a rotating shaft, and a pull rope is fixedly connected to the reel, and the end of the pull rope away from the reel is fixedly connected to the On the rack, the lower surface of the filter barrel is fixedly connected with a motor, the output shaft of the motor is fixedly connected with fan teeth, the rotating shaft of the reel is fixedly connected with a bevel gear meshing with the fan teeth, and the sliding rod The outer wall of one is provided with a spring that can reset the outer scraping ring toward the inside of the filter cavity.

As a further solution of the present invention, a chassis is provided at the lower end of the filter bucket.

An anti-pollution PVDF ultrafiltration membrane module structure, including a filter element, the lower end of the filter element is sealed, the upper end of the filter element is connected, the upper end of the filter element is connected and fixed to the water purification chamber, and the lower end of the filter element is fixedly connected to the On the bottom wall of the filter bucket.

Compared with prior art, the beneficial effect of the present invention is:

1. There is an inner support ring. When the inner support ring moves, the filter element can be corrected so that it is at the largest diameter, so as to always maintain the largest filtration area. The outer scraping ring can scrape the outer wall of the filter element. Scratch to clean the stains on the surface of the filter element. At the same time, when the outer scraping ring is scraping, the inner support ring will cooperate with the outer scraping ring to squeeze the filter element, so as to ensure the scraping effect.

2. Since the extrusion cylinder and the extrusion plug are installed, the cleaning process can be realized without interruption. At the same time, after the cleaning is completed, when the reset is performed, due to the friction between the extrusion cylinder and the inner wall of the filter element, the first squeeze The pressing plug rises. At this time, the spring between the extrusion plug and the fixed frame is compressed, so the extrusion plug and the extrusion cylinder are dislocated, and the upper nozzle is opened. Therefore, at the same time, the inner support ring is fixedly connected in the extrusion On the barrel, the inner support ring and the outer scraping ring will also be misaligned. Therefore, at this time, the inner support ring and the outer scraping ring will not squeeze the filter element at the same time, so that the outer scraping ring will not scratch the filter element, thereby reducing the wear on the outer wall of the filter element. At the same time, the extrusion plug and the fixing frame are misaligned, and the upper nozzle is always open, so the extrusion cylinder will not continue to squeeze the water inside the filter element to make it discharge outward, which will affect the filtration efficiency. When the extrusion cylinder moves to the position of the limit ring At the same time, the limit circle is back against the extrusion cylinder, so as to ensure that the extrusion plug does not block the upper nozzle, so that the upper nozzle is always open.

3. The set spool can make the sealing plug open only when it reaches the critical value of triggering the spool, so the water flow rate is faster at the moment of opening, so that the stain can be sprayed out through the water outlet of the sewage storage tank. The dirt can be better discharged from the filter barrel, and at the same time, the filter barrel can be discharged faster, and it is not easy to cause blockage of the outlet of the dirt storage tank and accumulation in the reel.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that are required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is the internal schematic diagram of filter tank of the present invention;

Fig. 3 is the connection structure schematic diagram of filter element of the present invention;

Fig. 4 is a schematic cross-sectional view of the interior of the reel of the present invention;

Fig. 5 is a schematic cross-sectional structure diagram of an extrusion barrel of the present invention;

Fig. 6 is a schematic cross-sectional structure diagram of the sewage discharge ring of the present invention;

Fig. 7 is a schematic structural view of the sewage discharge circle part of the present invention;

Fig. 8 is a schematic diagram of the bottom structure of the filter barrel of the present invention after being inverted.

In the accompanying drawings, the list of parts represented by each label is as follows:

01. Filter barrel; 02. Water inlet; 03. Water outlet; 04. Reel; 05. Sliding shaft; 06. Filter element; 07. Sliding ear; 08. Triangular block; 09. Slider one; 10. Ring; 11. Motor; 12. Hanging shaft; 13. Connecting frame; 14. Pull rope; 15. Sealing plug; 16. Two slide rods; 17. Inner support ring; circle; 21, limit ring; 22, extrusion cylinder; 23, fixed frame; 24, extrusion plug; 25, water purification chamber; Column; 30, fixed block; 31, filter cavity; 32, sealing convex; 33, chassis.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Fig. 1 to Fig. 8, the present invention provides a kind of technical scheme: a kind of anti-pollution PVDF ultrafiltration membrane filtration device, comprises filter barrel 01, and the upper end of filter barrel 01 is provided with drain outlet 03, and the side of drain outlet 03 is arranged There is a water inlet 02, the upper end of the filter barrel 01 is provided with a water purification chamber 25, and the lower end of the filter barrel 01 is provided with a filter chamber 31, and the filter barrel 01 is slidably connected with a slider 09, and the slider 09 is located in the filter chamber 31 An outer scraping ring 18 is fixedly connected to one end of the outer scraping ring 18, and the inner wall of the arc-shaped contour of the outer scraping ring 18 is provided with a slope, and the end of the sliding rod 109 away from the outer scraping ring 18 is fixedly connected to a connecting frame 13, and the connecting frame 13 is fixedly connected to a sliding rod. The end of rod two 16 and slide rod two 16 away from the connecting frame 13 is provided with an inner support ring 17, and the inner support ring 17 is provided with a slope, and the filter barrel 01 is also provided with a seal groove 19 that can move away from the direction of the water purification chamber 25. the drive mechanism.

When the driving mechanism drives the sealing groove 19 to move downward toward the slide bar 109, it will drive the outer scraping ring 18 and the inner support ring 17 to move away from the clean water chamber 25 at the same time, firstly, the movement of the inner support ring 17 will stretch The filter element 06 can correct the shape of the filter element 06, thereby ensuring that the subsequent filter element 06 will always maintain the maximum filtration area when filtering, so as to ensure the filtering effect. At the same time, the inner support ring 17 is provided with an inclined surface (which can be combined with Figure 5), when the inner support ring 17 moves downward, the inclined surface can first contact the inner wall of the filter element 06, so that it is not easy to be scratched when correcting, thereby ensuring the service life; the inner support ring 17. When the correction of the filter element 06 is completed, the corrected part of the filter element 06 just moves to the position of the outer scraping ring 18. At this time, due to the existence of the inner support ring 17, the inner support ring 17 will resist the filter element 06, so that The filter element 06 and the outer scraping ring 18 can be closely attached together, so that when the outer scraping ring 18 moves downward, the outer scraping ring 18 can scrape the outer wall of the filter element 06, thereby cleaning the outer wall of the filter element 06 and absorbing Hang the stains on the outer wall of the filter element 06, thereby improving the effect of subsequent filtration, so that the filter element 06 can filter for a long time, thereby realizing the anti-pollution function. In addition, because the outer scraping ring 18 is provided with an inclined surface, it is easy to clean during cleaning. When the outer scraping ring 18 moves downward, the inclined surface of the outer scraping ring 18 can cooperate with the inner support ring 17 to squeeze the filter element 06, thereby improving the scraping effect, and the inclined surface faces downward, so when the outer scraping ring 18 moves downward, the filter element 06 will Gradually squeezed to reduce wear;

An inner support ring 17 is provided, and when the inner support ring 17 moves, the filter element 06 can be rectified so that it is at the largest diameter, thereby maintaining the largest filtering area at all times. The outer wall is scraped to clean the stains on the surface of the filter element 06. At the same time, when the outer scraping ring 18 is scraping, the inner support ring 17 will cooperate with the outer scraping ring 18 to squeeze the filter element 06, thereby ensuring the scraping effect.

As a further solution of the present invention, an extrusion cylinder 22 is fixedly connected to the inner support ring 17, and an upper nozzle 26 is arranged on the extrusion cylinder 22, and an extrusion plug 24 is fixedly connected to the sliding rod two 16, and the extrusion plug 24 slides A fixed frame 23 fixedly connected to the extruding cylinder 22 is connected, and a spring that enables the fixed frame 23 to move away from the extruding plug 24 is arranged between the fixed frame 23 and the extruding plug 24. The filter element 06 and the water purification chamber 25 The communication position is provided with a limit ring 21 fixedly connected with the water purification chamber 25 .

When not cleaning, the extrusion cylinder 22 is resisted by the stop ring 21, so that the extrusion plug 24 and the extrusion cylinder 22 are dislocated, so that the water filtered into the filter element 06 can enter the net through the upper water port 26. In the water cavity 25, when cleaning, along with the decline of the slide bar 2 16, the squeeze plug 24 will be driven down at first, and the spring between the fixed mount 23 and the squeeze plug 24 will gradually recover from the compressed state, thereby The extrusion plug 24 will block the water inlet 26, and then the extrusion plug 24 will pull the extrusion cylinder 22 to move downwards as the extrusion plug 24 moves downwards, thereby driving the inner support ring 17 to move downwards at the same time, and the extrusion cylinder 22 will move downwards. During the process, since the squeeze plug 24 blocks the upper water port 26, as the squeeze cylinder 22 descends, the filtered water in the filter element 06 located under the squeeze cylinder 22 can be squeezed, so that the water flows from the inside of the filter element 06 to the outside. Reverse flow, so that the function of reverse flushing can be realized by using the filtered water, and, since the extrusion cylinder 22 is arranged above the outer scraping ring 18, it can be rinsed and cleaned after the outer scraping ring 18 is scraped, thereby further improving the cleaning effect. In addition, as the extrusion cylinder 22 descends, the filter element 06 located above the extrusion cylinder 22 can continue to perform the filtering function, thereby realizing the uninterrupted filtering function during the cleaning process. At the same time, after the cleaning is completed, the When resetting, because there is friction between the inner wall of the extrusion cylinder 22 and the filter element 06, the extrusion plug 24 rises first, and at this time the spring between the extrusion plug 24 and the fixed frame 23 is compressed, so the extrusion plug 24 and the extrusion plug 24 The cylinder 22 is dislocated, and the upper nozzle 26 is opened. Therefore, at the same time, because the inner support ring 17 is fixedly connected to the extrusion cylinder 22, the inner support ring 17 and the outer scraping ring 18 will also be dislocated. Therefore, at this time, the inner support ring 17 The ring 17 and the outer scraping ring 18 will not squeeze the filter element 06 at the same time, so that the outer scraping ring 18 will not scratch the filter element 06, thereby reducing the wear on the outer wall of the filter element 06. Always open, so the extrusion cylinder 22 will not continue to squeeze the water inside the filter element 06 to discharge it outward, thereby affecting the filtration efficiency. When the extrusion cylinder 22 moves to the position of the limit circle 21, the limit circle 21 will Hold against the extrusion cylinder 22, thereby ensuring that the extrusion plug 24 does not block the upper water port 26, so that the upper water port 26 is always opened.

As a further solution of the present invention, the outer wall of the filter element 06 is covered with a reel 04, two reels 04 are symmetrically arranged, the reel 04 is fixedly connected with a sliding ear 07, the sliding ear 07 is slidably connected with a sliding shaft 05, and the sliding ear 07 is slidably connected with a sliding shaft 05. The shaft 05 is provided with a spring that can make the two reels 04 move towards each other. One of the reels 04 is provided with a sealing groove 19, and the other reel 04 is fixedly connected with a spring that can be snapped into the sealing groove 19. The sealing protrusion 32 is fixedly connected to the outer scraping ring 18 with a triangular block 08 that can enable the two reels 04 to open the gap.

As a further solution of the present invention, the lower end of the filter chamber 31 is fixedly connected with a sewage discharge ring 20 sleeved on the lower end of the filter element 06, and a sewage storage tank 27 is provided on the sewage discharge ring 20, and a water outlet is provided on the sewage storage tank 27 to communicate with the filter bucket. 01 outside, the outer wall of the filter barrel 01 is fixedly connected with a hanging shaft 12, the upper limit of the hanging shaft 12 is slidably connected with a ring 10, and the hanging shaft 12 is provided with a spring that can reset the ring 10 toward the filter barrel 01, and the ring 10 The sealing plug 15 that can block the water outlet of the sewage tank 27 is fixedly connected with the upper.

When not cleaning, the triangular block 08 keeps against the reel 04, so that the two reels 04 always maintain a gap, so that the sewage can stably enter the inside of the reel 04 and filter through the filter element 06. When cleaning , as the outer scraping ring 18 descends, it will also drive the triangular block 08 to descend, so that the two reels 04 will gradually close together until a complete cylinder is buckled on the periphery of the filter element 06, and the inner wall of the reel 04 will stick to the outside On the outer wall of the arc-shaped contour of the scraper ring 18, the sealing groove 19 on one of the reels 04 will be inserted into the sealing protrusion 32 of the other reel 04 after fastening, so as to ensure the sealing performance, and the reel 04 can realize cleaning During the process, as the outer scraping ring 18 descends, the outer scraping ring 18 will squeeze the position below the outer scraping ring 18 between the reel 04 and the filter element 06, and firstly make a large amount of cleaned dirt remain on the reel 04 and Between the filter elements 06, the movement of the outer scraping ring 18 is then simultaneously discharged downward through the water outlet of the dirt storage tank 27, so that a large amount of dirt that has been cleaned will not flow back into the filter cavity 31, resulting in sewage in the filter cavity 31 Dirt concentration is too high, thereby continue to affect the efficiency of filtration; In addition, because the approximate trapezoid of the shape of dirt storage tank 27, thereby thick dirty water can be concentrated in the lower end of dirt storage tank 27, thereby pass through the dirt storage tank 27 more easily The water outlet is sprayed out, and since the hanging shaft 12 and the circular ring 10 are provided, the circular ring 10 can block the water outlet of the dirt storage tank 27 by the sealing plug 15, so when cleaning, along with the extruding cylinder 22 and the outer scraper As the ring 18 descends, the water pressure in the filter element 06 and the water pressure between the filter element 06 and the reel 04 continue to increase, so under the action of the water pressure, the sealing plug 15 will be pushed to open, so that water can pass through the sewage storage tank 27 The drain outlet flows out of the filter barrel 01 outside, and when filtering in normal use, the sealing plug 15 will not be opened without the effect of water pressure, thereby ensuring sealing.

As a further solution of the present invention, the filter bucket 01 is fixedly connected with a fixed block 30, and the upper limit of the fixed block 30 is slidably connected with a sliding column 29, and the end of the sliding column 29 close to the ring 10 is a round head, and the outer wall of the sliding column 29 is sleeved There is a spring that can make the sliding column 29 return to the direction of the annulus 10 .

The circular ring 10 can be limited by the sliding column 29, so when the outer scraping ring 18 and the extrusion cylinder 22 descend, the increase of water pressure will not cause the sealing plug 15 to descend the circular ring 10 at the first time, only when the hydraulic pressure Increase to sealing plug 15 and can promote circular ring 10 to make circular ring 10 cross spool 29, and this moment circular ring 10 just can move downwards and open sealing plug 15, makes water discharge by the water outlet of dirt storage tank 27, because After cleaning, the sewage in the part between the reel 04 and the filter element 06 is relatively thick, so it is easy to accumulate on the sewage ring 20 and is not easy to discharge, thereby easily causing blockage of the water outlet of the sewage storage tank 27. By setting the sliding column 29, it can be Realize that it will only open when the water pressure reaches to enable the ring 10 to cross the spool 29, so the water pressure in the reel 04 will accumulate, and it will only open when it reaches the critical value that triggers the spool 29, so the water will be opened at the moment of opening. The flow rate is faster, so that the stains can be sprayed out through the water outlet of the dirt storage tank 27, and the dirt can be better discharged from the filter barrel 01. 27 Clogging of the water outlet, and accumulation inside the reel 04.

As a further solution of the present invention, the drive mechanism includes a reel 04 that is connected to the lower surface of the filter bucket 01 through a rotating shaft. On the frame 13, the motor 11 is fixedly connected to the lower surface of the filter bucket 01, the output shaft of the motor 11 is fixedly connected with the fan teeth 28, and the rotating shaft of the reel 04 is fixedly connected with a bevel gear meshing with the fan teeth 28, and a slide bar The outer wall of 09 is covered with a spring that can reset the outer scraping ring 18 toward the inside of the filter cavity 31 .

When the sector 28 is working, the output shaft will drive the sector 28 to rotate. When the sector 28 rotates, it will drive the bevel gear on the rotating shaft of the reel 04 to drive the reel 04 to rotate, so that the reel 04 can wind the pull rope 14, so that the connecting frame 13 is pulled to lower the slide bar 09 to realize the driving function. The spring on the slide bar 09 can reset the slide bar 09. Since the fan teeth 28 are part bevel gears, only one The reel 04 rotates, and the function of intermittently driving each reel 04 to rotate one revolution can be realized as the fan teeth 28 rotate one revolution, so that each slide bar 09 will move downward intermittently, so that a filter element 06 When cleaning, it does not affect other filtering, thus ensuring the efficiency of filtering.

As a further solution of the present invention, a chassis 33 is provided at the lower end of the filter barrel 01 .

The dirt that is discharged by the water outlet of the dirt storage tank 27 can be collected by the chassis 33 .

An anti-pollution PVDF ultrafiltration membrane module structure, including a filter element 06, the lower end of the filter element 06 is sealed, the upper end of the filter element 06 is penetrated, the upper end of the filter element 06 is connected and fixed to the water purification chamber 25, and the lower end of the filter element 06 is fixedly connected to the filter barrel 01 on the bottom wall.

When installing, it is necessary to connect one end of the filter element 06 to the water purification chamber 25, and to be fixedly connected to the connected position, and the lower end is also fixedly connected to the filter barrel 01. When filtering, the filtered water will pass through the thin wall of the filter element 06 It flows into the filter element 06, and then flows into the water purification chamber 25 at the upper end, and the lower end of the filter element 06 will not have water circulation, thereby not affecting the filtering and cleaning functions.

Claims (8)

1. The utility model provides an antipollution's PVDF milipore filter equipment, includes filter vat (01), the upper end of filter vat (01) is provided with outlet (03), the side of outlet (03) is provided with water inlet (02), its characterized in that: the inside upper end of filter vat (01) is provided with water purification chamber (25), the inside lower extreme of filter vat (01) is provided with filter chamber (31), sliding connection has slide bar (09) on filter vat (01), one of slide bar (09) is gone up and is served fixedly connected with in filter chamber (31) and scrape circle (18), the arc profile inner wall of scraping circle (18) outward is provided with the inclined plane, slide bar (09) are kept away from outer one end fixedly connected with link (13) of scraping circle (18), fixedly connected with slide bar two (16) are gone up in link (13), the one end that link (13) were kept away from in slide bar two (16) is provided with interior bracer (17), be provided with the inclined plane on interior bracer (17), still be provided with on filter vat (01) and make seal groove (19) towards the actuating mechanism who keeps away from water purification chamber (25) direction motion.

2. The anti-contamination PVDF ultrafiltration membrane filtration device of claim 1, wherein: fixedly connected with recipient (22) on interior lock ring (17), be provided with mouth of a river (26) on recipient (22), fixedly connected with extrusion plug (24) on slide bar two (16), sliding connection has mount (23) of fixed connection on recipient (22) on extrusion plug (24), be provided with between mount (23) and extrusion plug (24) and enable mount (23) towards keeping away from the spring of extrusion plug (24) direction motion, filter core (06) and water purification chamber (25) intercommunication position be provided with water purification chamber (25) fixed connection's spacing collar (21).

3. The anti-contamination PVDF ultrafiltration membrane filtration device according to claim 2, wherein: the outer wall cover of filter core (06) is equipped with reel (04), reel (04) symmetry is provided with two, fixedly connected with slip ear (07) on reel (04), sliding connection has sliding shaft (05) on slip ear (07), be provided with on sliding shaft (05) and enable two reels (04) towards the spring of being close to the direction motion each other, one of them seal groove (19) have been seted up on reel (04), another fixedly connected with can joint protruding (32) in seal groove (19) on reel (04), scrape circle (18) outward and go up fixedly connected with and enable two reel (04) prop open the triangle block (08) in gap.

4. The anti-contamination PVDF ultrafiltration membrane filtration device of claim 3, wherein: the sewage draining device is characterized in that a sewage draining ring (20) at the lower end of a filter element (06) is sleeved with a fixedly connected lower end of a filter cavity (31), a sewage storing groove (27) is formed in the sewage draining ring (20), a water outlet is formed in the sewage storing groove (27) and communicated to the outside of the filter barrel (01), a hanging shaft (12) is fixedly connected to the outer wall of the filter barrel (01), a circular ring (10) is connected to the hanging shaft (12) in a limiting and sliding mode, a spring capable of enabling the circular ring (10) to reset towards the filter barrel (01) is arranged on the hanging shaft (12), and a sealing plug (15) capable of plugging the water outlet of the sewage storing groove (27) is fixedly connected to the circular ring (10).

5. The anti-contamination PVDF ultrafiltration membrane filtration device according to claim 4, wherein: fixedly connected with fixed block (30) on filter vat (01), spacing sliding connection has traveller (29) on fixed block (30), the one end that traveller (29) are close to ring (10) is the button head, the outer wall cover of traveller (29) is equipped with the spring that enables traveller (29) and reset towards ring (10) direction.

6. The anti-contamination PVDF ultrafiltration membrane filtration device of claim 1, wherein: the drive mechanism comprises a reel (04) which is rotatably connected to the lower surface of the filter barrel (01) through a rotating shaft, a pull rope (14) is fixedly connected to the reel (04), one end, far away from the reel (04), of the pull rope (14) is fixedly connected to a connecting frame (13), a motor (11) is fixedly connected to the lower surface of the filter barrel (01), sector teeth (28) are fixedly connected to an output shaft of the motor (11), bevel gears which are meshed with the sector teeth (28) are fixedly connected to the rotating shaft of the reel (04), and a spring which enables the outer scraping ring (18) to reset towards the inside of the filter cavity (31) is sleeved on the outer wall of the sliding rod I (09).

7. The anti-contamination PVDF ultrafiltration membrane filtration device of claim 1, wherein: the lower end of the filter barrel (01) is provided with a chassis (33).

8. An anti-contamination PVDF ultrafiltration membrane component structure suitable for use in an anti-contamination PVDF ultrafiltration membrane filtration device of any one of claims 1 to 5, wherein: including filter core (06), the lower extreme of filter core (06) is sealed, the upper end of filter core (06) link up, the upper end and the water purification chamber (25) of filter core (06) intercommunication are fixed, the lower extreme fixed connection of filter core (06) is on the end jade of lauter tun (01).

Images