A pure water supply device having a purification structure

Abstract

The application provides a pure water supply device with a purification structure, and relates to the technical field of water treatment. The pure water supply device with the purification structure comprises a filter cartridge, the purification mechanism comprises a permeation membrane built in the filter cartridge, a rotating assembly is coaxially arranged in the permeation membrane, a through hole for water flow is arranged on the side wall of the center pipe, the part of the center pipe located in the permeation membrane is uniformly sleeved with a disc, the bottom end of the center pipe is detachably and fixedly connected with an impeller serving as a power source, a spacing for water flow is left between the circumferential side of the impeller and the permeation membrane, the rotation of the impeller drives the rotation of the center pipe and the disc thereon, the water flow entering the permeation membrane has a certain centrifugal force, the impurities in the water flow quickly rush to the permeation membrane, the filtration efficiency is improved, the water flow flows from the bottom end to the top end of the center pipe and is discharged from the multilayer through holes, and the impurities can not accumulate at the bottom of the permeation membrane due to gravity under the impact of the water flow.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, in particular to a pure water supply device with purification structure. BACKGROUND

[0002] The pure water supply device generally adopts a filter with purification structure. In the prior art, a filter core is generally used to remove impurities in the water source. Water flows into one end of the filter, penetrates through one side of the filter core and then flows out from the other end of the filter. During the process, the water and the filter core are directly penetrated and filtered, and the filter core is used to filter the impurities in the water source.

[0003] However, in this way, the filter core has limited filtering effect on the water source. The impurities in the water are easily accumulated at a certain position of the filter core along the direction of the water flow, so that filter cake is easily formed on the side wall of the filter core at this position, which affects the normal use of the filter core and reduces the overall water purification efficiency of the filter core. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a pure water supply device with purification structure, which comprises a filter cartridge, a neck is sealingly arranged on the filter cartridge, a cover is detachably and sealingly installed on the neck, a cavity is formed in communication inside the filter cartridge, the neck and the cover, wherein a purification structure is built-in in the filter cartridge for purifying the water source, a bottom-end water inlet pipe is arranged at the bottom end of the side wall of the filter cartridge, an electromagnetic valve is connected at the water outlet pipe, a water outlet pipe is arranged at the bottom end of the filter cartridge, a water outlet pipe is arranged on the side wall of the neck, a connecting pipe is in communication between the bottom-end water inlet pipe and the water outlet pipe, a backwashing valve is arranged on the connecting pipe, the backwashing valve is connected with the water source, and the pure water supply device further comprises:

[0005] An annular inner ledge is arranged at the bottom of the inner wall of the filter cartridge.

[0006] The purification structure is a purification mechanism, the purification mechanism comprises a permeable membrane built-in in the filter cartridge, the permeable membrane is hollow, the permeable membrane is axially limited and inserted into the inner ledge, a space is left between the side wall and the top end of the permeable membrane and the filter cartridge, a rotating assembly is coaxially arranged in the permeable membrane, the rotating assembly is rotationally connected to the permeable membrane, the rotating assembly comprises a central pipe coaxially arranged and rotated with the permeable membrane, the central pipe is hollow inside and has a closed top and bottom, a through hole is arranged on the side wall of the central pipe for water flow, the part of the central pipe located in the permeable membrane is uniformly sleeved with a disc, a impeller serving as a power source is detachably and fixedly connected to the bottom end of the central pipe, and a space is left between the circumferential side of the impeller and the permeable membrane for water flow.

[0007] In addition, the water purifying device with the purifying structure according to the embodiment of the application has the following additional technical features.

[0008] In some embodiments of the application, the water outlet pipe of the purified water is provided with a purified water end electromagnetic valve at one end of the connecting pipe.

[0009] In some embodiments of the application, the top end of the permeable membrane is fixedly connected with a top cover, the bottom end of the permeable membrane is fixedly connected with a bottom cover, and the bottom cover and the inner wall of the inner casing are sealingly and plug-in connected.

[0010] In some embodiments of the application, the bottom end of the bottom cover is connected with a communication pipe, the impeller is located in the communication pipe, and a spacing for water flow is left between the inner wall of the communication pipe and the impeller.

[0011] In some embodiments of the application, a positioning groove is arranged on the inner wall of the bottom cover.

[0012] In some embodiments of the application, the center pipe is sealingly and rotationally plugged in the top cover and the bottom cover.

[0013] In some embodiments of the application, a through hole for water flow is arranged on the side wall of the center pipe as a water outlet hole, the water outlet holes are annularly distributed in multiple layers on the side wall of the center pipe, the disc is fixedly sleeved between two adjacent layers of the water outlet holes, a top positioning disc is rotationally sleeved at one end of the center pipe extending out of the top cover, the top positioning disc abuts against the top cover, a bottom positioning disc is sealingly and rotationally sleeved on the bottom side wall of the center pipe, and the bottom positioning disc sealingly and fixedly cooperates with the positioning groove.

[0014] In some embodiments of the application, there are at least one layer of the water outlet holes between the impeller and the bottom positioning disc.

[0015] In some embodiments of the application, a plurality of the discs are arranged between the top cover and the bottom cover, the plurality of discs have the same structure and size, and an arc-shaped groove is arranged on the bottom side of the disc.

[0016] In some embodiments of the application, the arc-shaped grooves are uniformly arranged with the center of the disc as the axis, and the arc-shaped grooves are radially arranged on the disc.

[0017] In some embodiments of the application, a descaling mechanism and an auxiliary mechanism are coaxially arranged in the barrel neck and the barrel cover, the auxiliary mechanism is limitingly and rotationally penetrated through the barrel cover, and a positioning strip is fixedly connected on the side wall of the auxiliary mechanism.

[0018] The barrel cover is provided with a lifting cabin.

[0019] The positioning pipe is uniformly fixed on the top cover;

[0020] The descaling mechanism comprises a sliding ring sliding in the lifting cabin, the sliding ring is slidingly sleeved on the auxiliary mechanism, the bottom side of the sliding ring is coaxially connected with a connecting ring, the connecting ring is rotatably sleeved on the auxiliary mechanism, the bottom side of the connecting ring is fixedly connected with a clamping ring sleeved on the auxiliary mechanism, the clamping ring is inserted and matched with the positioning strip, the clamping ring is uniformly fixed with a positioning rod, the positioning rod is inserted and matched with the positioning pipe, one end of the auxiliary mechanism extending out of the barrel cover is rotatably sleeved with a positioning ring, the positioning ring is respectively threadedly connected with a driving rod and slidingly connected with a driven rod, and the driving rod slidingly penetrates the barrel cover and is rotatably connected with the sliding ring, the driven rod slidingly penetrates the barrel cover and is fixedly connected with the sliding ring.

[0021] In some embodiments of the application, the bottom end of the connecting ring is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the clamping ring.

[0022] In some embodiments of the application, the inner wall of the clamping ring is uniformly provided with a limiting groove, and the limiting groove and the positioning strip are slidingly inserted and matched.

[0023] In some embodiments of the application, the auxiliary mechanism comprises a rotating cylinder rotatably connected to the barrel cover, a supporting rod is slidingly inserted into the rotating cylinder, one end of the supporting rod inserted into the rotating cylinder abuts against an elastic member, and one end of the supporting rod extending out of the rotating cylinder abuts against the center pipe.

[0024] In some embodiments of the application, the rotating cylinder and the sliding ring are slidingly and rotatably connected, and the rotating cylinder and the connecting ring are slidingly matched.

[0025] In some embodiments of the application, the top end of the rotating cylinder extends out of the barrel cover, and the positioning ring is rotatably sleeved on one end of the rotating cylinder extending out of the barrel cover.

[0026] In some embodiments of the application, one end of the rotating cylinder extending out of the barrel cover is fixedly connected with a knob.

[0027] According to the pure water supply device with the purification structure provided by the embodiment of the application, the beneficial effects are:

[0028] In the normal purification operation of the water source, the water source enters the filter cartridge from the bottom inlet pipe, and the water flow entering the filter cartridge is forced to flow from the periphery of the impeller by the spacing between the periphery of the impeller and the permeable membrane. Then, under the action of the water flow, the impeller is driven to rotate, and the central pipe and the disc thereon are further driven to rotate by the impeller. Then, under the condition of the rotation of the plurality of discs, the water flow entering the permeable membrane has a certain centrifugal force, so that the impurities in the water flow quickly to the permeable membrane, thereby improving the filtration efficiency. At the same time, due to the segmentation of the water flow by the plurality of discs, the impurities in the water source can be as evenly distributed as possible inside the permeable membrane. The water flow flows from the bottom to the top of the central pipe and is discharged from the plurality of through holes, so that the impurities can be impacted by the water flow and not accumulated at the bottom of the permeable membrane due to gravity. Therefore, the problem that the impurities in the water flow are easily accumulated at a certain place of the filter cartridge in the prior art, so that filter cake is easily formed on the side wall of the filter cartridge at that place, thereby affecting the normal use of the filter cartridge and reducing the overall water purification efficiency of the filter cartridge, can be avoided as much as possible.

[0029] Additional aspects and advantages of the application will be set forth in part in the description that follows, and in part will become apparent to those skilled in the art upon examination of the following description and drawings or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 is a schematic diagram of the overall structure of a pure water supply device with a purification structure according to an embodiment of the application;

[0032] Figure 2 is a schematic diagram of the internal structure of a pure water supply device with a purification structure according to an embodiment of the application;

[0033] Figure 3 is a schematic diagram of the position of the purification mechanism in the filter cartridge according to an embodiment of the application;

[0034] Figure 4 is a schematic diagram of the internal structure of the purification mechanism according to an embodiment of the application;

[0035] Figure 5 is a schematic diagram of the internal structure of the purification mechanism according to an embodiment of the application;

[0036] Figure 6 is a schematic diagram of the internal structure of the purification mechanism according to an embodiment of the application; Figure 5Enlarged view of the middle A;

[0037] Figure 7 is a structural exploded view of the rotating assembly according to an embodiment of the present application;

[0038] Figure 8 is a schematic diagram of the flow path of the process water flow in the purification mechanism and the filter cartridge according to an embodiment of the present application;

[0039] Figure 9 is a schematic diagram of the structure of the disc according to an embodiment of the present application;

[0040] Figure 10 is a schematic diagram of the position of the descaling mechanism according to an embodiment of the present application;

[0041] Figure 11 is a structural exploded view between the descaling mechanism and its connecting parts according to an embodiment of the present application;

[0042] Figure 12 is a schematic diagram of the flow path of the process water flow in the purification mechanism and the filter cartridge according to an embodiment of the present application; Figure 11 is an enlarged view of the structure of the descaling mechanism;

[0043] Figure 13 is a schematic diagram of the flow path of the process water flow in the purification mechanism and the filter cartridge according to an embodiment of the present application;

[0044] Figure 14 is a schematic diagram of the position of the auxiliary mechanism and its structural sectional view according to an embodiment of the present application.

[0045] Figure: 1, filter cartridge; 101, inner wall; 11, bottom end water inlet pipe; 12, clean water outlet pipe; 121, clean water end electromagnetic valve; 13, drain pipe; 14, connecting pipe; 141, backwashing valve; 2, cartridge neck; 3, barrel cover; 31, lifting cabin; 4, purification mechanism; 41, permeable membrane; 411, top cover; 412, bottom cover; 413, communication pipe; 414, positioning groove; 415, positioning pipe; 42, rotating assembly; 421, center pipe; 422, water outlet hole; 423, disc; 424, top positioning disc; 425, bottom positioning disc; 426, arc-shaped groove; 43, impeller; 5, descaling mechanism; 51, sliding ring; 52, connecting ring; 521, connecting rod; 53, clamping ring; 531, limiting groove; 54, positioning rod; 55, positioning ring; 551, driving rod; 552, driven rod; 6, auxiliary mechanism; 601, positioning strip; 61, rotating drum; 62, supporting rod; 63, elastic member; 64, knob. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0047] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0048] As shown in Figures 1-14 A pure water supply device with a purification structure according to an embodiment of the present application comprises a filter cartridge 1, a cartridge neck 2 is sealingly arranged on the filter cartridge 1, a barrel cover 3 is detachably and sealingly arranged on the cartridge neck 2, and a cavity is formed in communication inside the filter cartridge 1, the cartridge neck 2 and the barrel cover 3. A purification structure is arranged inside the filter cartridge 1 for purifying a water source. A bottom-end water inlet pipe 11 is arranged at a bottom end of a side wall of the filter cartridge 1. A drain pipe 13 is arranged at the bottom end of the filter cartridge 1, and an electromagnetic valve is connected to the drain pipe 13. A purified water outlet pipe 12 is arranged on a side wall of the cartridge neck 2. A connecting pipe 14 is arranged in communication between the bottom-end water inlet pipe 11 and the purified water outlet pipe 12. A backwashing valve 141 is arranged on the connecting pipe 14, and a water source is connected to the backwashing valve 141.

[0049] It should be noted that in the embodiment of the present application, the backwashing valve 141 can be used to control whether the water source enters the filter cartridge 1 from the bottom-end water inlet pipe 11 or the purified water outlet pipe 12. Meanwhile, the electromagnetic valve at the drain pipe 13 is used to control the opening and closing of the drain pipe 13. The specific control mode and electrical connection mode are prior art, and will not be described in detail in the embodiment of the present application.

[0050] Specifically, the pure water supply device with a purification structure according to the embodiment of the present application further comprises an annular inner ledge 101 arranged at a bottom of an inner wall of the filter cartridge 1, so as to position the permeable membrane 41.

[0051] The purification structure is a purification mechanism 4, the purification mechanism 4 comprises a permeation membrane 41 arranged in the filter cartridge 1, the permeation membrane 41 is hollow, the permeation membrane 41 is in axial limiting plug-in cooperation with the inner rim 101, it is to be explained that the bottom end of the permeation membrane 41 is in sealing limiting plug-in cooperation with the inner rim 101, and the permeation membrane 41 and the inner rim 101 cannot rotate, the side wall and the top end of the permeation membrane 41 are spaced apart from the filter cartridge 1, in this way, the permeation membrane 41 forms a water flow channel through the space between the side wall and the filter cartridge 1, the permeation membrane 41 is coaxially provided with a rotating assembly 42, the rotating assembly 42 is rotatably connected to the permeation membrane 41, the rotating assembly 42 comprises a central pipe 421 rotatably arranged coaxially with the permeation membrane 41, the central pipe 421 is hollow and the top and bottom ends are closed, the side wall of the central pipe 421 is provided with a through hole for water flow, in this way, the hollow part of the permeation membrane 41 and the through hole on the side wall of the central pipe 421 form a water flow channel, the part of the central pipe 421 in the permeation membrane 41 is uniformly sleeved with a disc 423, the bottom end of the central pipe 421 is detachably fixed with an impeller 43 as a power source, the circumferential side of the impeller 43 is spaced apart from the permeation membrane 41 to form a water flow channel.

[0052] In addition, the pure water supply device with a purification structure according to the embodiment of the application further has the following additional technical features:

[0053] The end of the water purification outlet pipe 12 extending out of the connecting pipe 14 is provided with a water purification end electromagnetic valve 121, which is convenient for cooperating with the backwashing valve 141 to control the flow direction of water.

[0054] It can be understood that the water flow direction can be controlled by the backwashing valve 141 to flow to the bottom end water inlet pipe 11 or the water purification outlet pipe 12, when the water flows to the bottom end water inlet pipe 11, the water purification end electromagnetic valve 121 is opened, and the electromagnetic valve at the drain pipe 13 is closed, so that the water flows from the bottom of the filter cartridge 1, is purified, and flows out from the water purification outlet pipe 12; when the water flows to the water purification outlet pipe 12, the water purification end electromagnetic valve 121 is closed, and the electromagnetic valve at the drain pipe 13 is opened, so that the water flows from the top of the filter cartridge 1, reversely passes through the permeation membrane 41 and the central pipe 421, and is discharged from the drain pipe 13.

[0055] Further, the top end of the permeation membrane 41 is fixedly connected with a top cover 411, and the bottom end of the permeation membrane 41 is fixedly connected with a bottom cover 412, the bottom cover 412 is in sealing plug-in cooperation with the inner rim 101 to limit the permeation membrane 41.

[0056] It should be noted that the side wall of the top cover 411 and the inner wall of the filter cartridge 1 are spaced apart to allow water to flow through.

[0057] The water purification outlet pipe 12 extends out of one end of the connecting pipe 14 and is provided with a water purification end electromagnetic valve 121, which is convenient for cooperating with the backwashing valve 141 to control the flow direction of water. Figures 4-6As shown, the bottom end of the bottom cover 412 is communicated with a communicating pipe 413, the impeller 43 is located in the communicating pipe 413, and a spacing for water flow is left between the inner wall of the communicating pipe 413 and the impeller 43.

[0058] Further, the inner wall of the bottom cover 412 is provided with a positioning groove 414.

[0059] Further, the center pipe 421 is sealingly rotatably inserted into the top cover 411 and the bottom cover 412.

[0060] Specifically, the side wall of the center pipe 421 is provided with a through hole for water flow as a water outlet hole 422, the water outlet hole 422 is annularly distributed in multiple layers on the side wall of the center pipe 421, a disc 423 is fixedly sleeved between two adjacent layers of the water outlet hole 422, the center pipe 421 extends out of the top cover 411 and is rotatably sleeved with a top positioning disc 424, the top positioning disc 424 abuts against the top cover 411, for limiting the top cover 411, i.e. limiting the permeable membrane 41, and the bottom side wall of the center pipe 421 is sealingly rotatably sleeved with a bottom positioning disc 425, the bottom positioning disc 425 sealingly and fixedly cooperates with the positioning groove 414.

[0061] Further, there is at least one layer of the water outlet hole 422 between the impeller 43 and the bottom positioning disc 425.

[0062] Therefore, it can be understood that, in the water purification process, after the water flow enters the filter cartridge 1 from the bottom inlet pipe 11, it will flow upwards from the communicating pipe 413, and then, when the water flow passes between the communicating pipe 413 and the impeller 43, the impeller 43 will be driven to rotate under the action of the water flow, and the water flow will enter the center pipe 421 from the water outlet hole 422 between the impeller 43 and the bottom positioning disc 425, and flow upwards along the axial direction of the center pipe 421, and due to the influence of the top end of the center pipe 421, the water flow will flow out from the multiple layers of the water outlet hole 422, and then, after being filtered by the permeable membrane 41, it will flow to the water outlet pipe 12 from the channel between the outer wall of the permeable membrane 41 and the inner wall of the filter cartridge 1, thus forming the water purification process, which can be seen from Figure 8 As shown, the approximate flow direction of the water flow in the filter cartridge 1 during the water purification process is shown.

[0063] Further, the multiple discs 423 are arranged between the top cover 411 and the bottom cover 412, the multiple discs 423 are the same in structure and size, and the bottom side of the disc 423 is provided with an arc-shaped groove 426.

[0064] Further, as shown in Figure 9As shown, the arc-shaped grooves 426 are uniformly arranged with the center of the disc 423 as the axis, and the plurality of arc-shaped grooves 426 are arranged in a radial manner on the disc 423. It should be noted that the radial arc-shaped grooves 426 on the disc 423 disturb the water flow passing through the disc 423, form a rotating cross flow, and the centrifugal force generated by the rotation of the axial flow (axial flow of the central pipe 421) separates the fluid into high and low concentrations. The different linear speeds at the inner and outer rings of the disc 423 generate different shear forces to deal with liquid materials of different concentrations (the purification device in the embodiment of the present application can be applied to the purification of liquid of different concentrations, and is not limited to water sources. In the embodiment of the present application, only water sources are described to facilitate understanding).

[0065] It can be understood that the impeller 43 is driven to rotate due to the action of the water flow, and the impeller 43 and the central pipe 421 are detachably fixed. The central pipe 421 is rotatably connected through the top positioning disc 424 and the top cover 411, and is rotatably connected through the bottom positioning disc 425 and the bottom cover 412. The disc 423 and the central pipe 421 are fixedly sleeved, so that when the impeller 43 rotates, the central pipe 421 and the disc 423 thereon will synchronously and synchronously rotate.

[0066] The use process of the pure water supply device with the purification structure according to the embodiment of the present application will be described below with reference to the accompanying drawings:

[0067] In the process of purifying water, the water flows into the filter cartridge 1 from the bottom side, and into the center tube 421 from the bottom side, and then flows out from the water outlet holes 422 on the side wall of the center tube 421, and finally flows to the purified water outlet pipe 12 at the top end through the permeable membrane 41. In this process, the water flow will drive the impeller 43 to rotate, and when the impeller 43 rotates, it will synchronously drive the center tube 421 and the disc 423 on it to rotate synchronously and in the same direction. In this way, when the water flow flows out from the water outlet holes 422 between the discs 423, it will have a centrifugal force. The effect of the centrifugal force will make the impurities in the water flow quickly flow towards the inner wall direction of the permeable membrane 41, thereby improving the filtering efficiency. Because the disc 423 is uniformly provided with a plurality of arc-shaped grooves 426 arranged in a radial manner with the center of the disc 423 as the axis, when the water flow passes through the disc 423, the rotating disc 423 and the arc-shaped grooves 426 arranged in a radial manner on it will affect the water flow, and the water flow will form a rotational flow on the surface of the disc 423. Under the action of the wall shear force, the water flow will remove the filter cake layer on the surface of the disc 423, thereby avoiding the formation of the filter cake layer on the surface of the disc 423, which affects the flow of the water flow. At the same time, under the influence of the arc-shaped grooves 426, after the water flow flows out from the water outlet holes 422, it will continuously be promoted to form a turbulent flow. In this way, it is more difficult for the impurities in the water flow to accumulate on the surface of the disc 423. At the same time, under the action of the rotation of the center tube 421 and the disc 423 and the upward flow of the water flow from the bottom end of the center tube 421, the impurities in the water flow inside the permeable membrane 41 are mixed more uniformly. Therefore, when passing through the permeable membrane 41, it is difficult to quickly form a filter cake layer at a certain place of the permeable membrane 41 due to too many impurities, thereby causing the local filtering of the permeable membrane 41 to lose effect, thereby affecting the overall filtering efficiency of the permeable membrane 41.

[0068] In the related art, with the extension of the use time, a filter cake layer will inevitably form on the inner wall of the permeable membrane 41. The existence of the filter cake layer will gradually affect the filtering effect and speed of the permeable membrane 41.

[0069] According to some embodiments of the present application, as shown in Figures 10-13 The cylinder neck 2 and the bucket cover 3 are coaxially provided with a descaling mechanism 5 and an auxiliary mechanism 6. The auxiliary mechanism 6 is limited to rotate on the bucket cover 3 (it should be noted that the auxiliary mechanism 6 is limited to rotate on the bucket cover 3 and cannot axially displace), and the side wall of the auxiliary mechanism 6 is uniformly and circumferentially fixed with a positioning strip 601.

[0070] The bucket cover 3 is provided with a lifting cabin 31.

[0071] The top cover 411 is uniformly fixed with a positioning tube 415.

[0072] The descaling mechanism 5 comprises a sliding ring 51 sliding in the lifting cabin 31. It should be noted that the sliding ring 51 can be axially displaced in the lifting cabin 31. The sliding ring 51 is slidingly sleeved on the auxiliary mechanism 6. The bottom side of the sliding ring 51 is coaxially connected with a connecting ring 52. The connecting ring 52 is rotatably sleeved on the auxiliary mechanism 6. It can be understood that the connecting ring 52 and the sliding ring 51 can be independently rotated. The bottom side of the connecting ring 52 is fixedly connected with a clamping ring 53 sleeved on the auxiliary mechanism 6. The clamping ring 53 is inserted and connected with the positioning strip 601. It can be understood that when the clamping ring 53 and the positioning strip 601 are in the inserted and connected state, the clamping ring 53 and the auxiliary mechanism 6 can be synchronously rotated. The clamping ring 53 is uniformly fixedly connected with a positioning rod 54. The positioning rod 54 is inserted and connected with the positioning pipe 415. It can be understood that after the positioning rod 54 and the positioning pipe 415 are in the inserted and connected state, the top cover 411 can be synchronously rotated with the clamping ring 53. The auxiliary mechanism 6 extending from one end of the bucket cover 3 is rotatably sleeved with a positioning ring 55. The positioning ring 55 is respectively screw-connected with a driving rod 551 and slidingly connected with a driven rod 552. The driving rod 551 is rotatably and slidingly penetrating through the bucket cover 3 and connected with the sliding ring 51. The driven rod 552 is slidingly penetrating through the bucket cover 3 and fixedly connected with the sliding ring 51. Thus, the driving rod 551 will drive the sliding ring 51 to be axially displaced in the lifting cabin 31 along the driving rod 551.

[0073] The bottom end of the connecting ring 52 is fixedly connected with a connecting rod 521. The connecting rod 521 is fixedly connected with the clamping ring 53.

[0074] Further, the inner wall of the clamping ring 53 is uniformly provided with a limiting groove 531. The limiting groove 531 is slidingly inserted and connected with the positioning strip 601.

[0075] Therefore, it can be understood that when the bucket cover 3 rotates on the barrel neck 2, the driving rod 551 and the driven rod 552 will be rotated, and then the sliding ring 51 will be rotated. The connection between the connecting ring 52 and the sliding ring 51 is a rotating connection, so the connecting ring 52 will not be affected when the bucket cover 3 rotates on the barrel neck 2. The positioning ring 55 and the auxiliary mechanism 6 are in a rotating connection, so the movement interference between the positioning ring 55 and the auxiliary mechanism 6 will not occur when the bucket cover 3 rotates on the barrel neck 2. Therefore, the installation or disassembly of the bucket cover 3 will not be affected. Specifically, during use, the rotation of the driving rod 551 on the positioning ring 55 will drive the sliding ring 51 to displace in the axial direction of the driving rod 551 in the lifting cabin 31. Further, the connecting ring 52 drives the snap ring 53 and the positioning rod 54 thereon to displace synchronously in the axial direction. In this way, the limiting groove 531 and the positioning strip 601 are inserted or separated, and the positioning rod 54 and the positioning tube 415 are inserted or separated. It should be noted that when the limiting groove 531 and the positioning strip 601 are inserted, the positioning rod 54 and the positioning tube 415 have already formed an insertion relationship. After the limiting groove 531 and the positioning strip 601 in the embodiment of the application are inserted, the auxiliary mechanism 6 is rotated, and then the snap ring 53 is rotated. Further, the snap ring 53 drives the positioning rod 54 and the positioning tube 415 that have formed an insertion relationship, and further makes the top cover 411 rotate. Because the bottom cover 412 and the inner eave 101 are in a sealing insertion fit relationship, the bottom cover 412 cannot rotate when the top cover 411 rotates. In this way, the permeable membrane 41 between the two will be twisted, and the top cover 411 will displace axially downward under the condition that the permeable membrane 41 is twisted. At this time, the filter cake layer on the inner wall of the permeable membrane 41 will fall off, be crushed, or the like under the action of the permeable membrane 41 being twisted. Specifically, the auxiliary mechanism 6 can repeatedly rotate as described above, further improving the falling off of the filter cake layer on the permeable membrane 41. Then, the auxiliary mechanism 6 is reset. It should be noted that a spring can be additionally arranged between the top disc 423 and the top cover 411 (specifically, the spring can be sleeved on the central tube 421) to facilitate the axial resetting of the top cover 411. The water flow is controlled by the backwashing valve 141 to flow to the clean water outlet pipe 12. The clean water end electromagnetic valve 121 is closed, and the electromagnetic valve at the drain pipe 13 is opened. At this time, the water flow will flow from the channel between the top end of the permeable membrane 41 and the inner wall of the filter cartridge 1. The water flow will permeate from the outer wall of the permeable membrane 41 to the inner wall direction under the obstruction of the bottom cover 412 and the inner eave 101. After entering the inside of the permeable membrane 41, the water flow will flow to the inside of the central tube 421 from the water outlet hole 422 on the central tube 421. Finally, the water flow will flow out from the water outlet hole 422 (between the bottom positioning disc 425 and the impeller 43) at the bottom of the central tube 421, enter the drain pipe 13 through the channel between the impeller 43 and the communication tube 413, and then be discharged.The water flow will play a backwashing role on the permeable membrane 41, and will carry the filter residue formed by the falling filter cake layer out, clean the permeable membrane 41, and discharge the filter residue, thereby improving the service efficiency and service life of the permeable membrane 41.

[0076] In the related art, in the purification process, because the water flow flows from the bottom to the top of the filter cartridge 1, especially at the center tube 421, the water flow will generate an upward force on the impeller 43 at the bottom end of the center tube 421 and the disc 423 on the side wall thereof during upward flow. Once the center tube 421 is axially displaced upward by the water flow, the water outlet hole 422 at the top of the side wall thereof will be displaced above the top cover 411, and further, part of the water flow will be directly discharged from the water outlet hole 422 into the purified water outlet pipe 12, thereby polluting the water flow purified by the permeable membrane 41 and reducing the water purification effect.

[0077] According to some embodiments of the present application, as shown in Figure 14 The auxiliary mechanism 6 comprises a rotating barrel 61 rotatably connected to the bucket cover 3, and a supporting rod 62 slidably inserted into the rotating barrel 61. One end of the supporting rod 62 inserted into the rotating barrel 61 abuts against an elastic member 63, and the other end of the supporting rod 62 extending out of the rotating barrel 61 abuts against the center tube 421.

[0078] The rotating barrel 61 and the sliding ring 51 are slidably and rotatably connected, and the rotating barrel 61 and the connecting ring 52 are slidably connected.

[0079] Specifically, the rotating barrel 61 extends out of the bucket cover 3 at the top end, and the positioning ring 55 is rotatably sleeved on one end of the rotating barrel 61 extending out of the bucket cover 3.

[0080] Further, the one end of the rotating barrel 61 extending out of the bucket cover 3 is fixedly connected with a knob 64.

[0081] It should be noted that the rotating barrel 61 can only rotate on the bucket cover 3 and cannot axially displace.

[0082] Therefore, during specific use, the elastic force of the elastic member 63 will make the supporting rod 62 in the rotating barrel 61 tightly abut against the one end of the center tube 421 extending out of the top cover 411, thereby positioning the center tube 421 to avoid axial displacement. It should be noted that the elastic member 63 can be a spring, and the elastic force thereof can be sufficient to prevent the center tube 421 from being displaced upward. Thus, during the purification process, the flow of the water flow will not cause the center tube 421 to be displaced upward, and further, the water not purified will be prevented from directly flowing to the purified water outlet pipe 12, thereby preventing the purified water from being polluted.

[0083] It should be noted that the specific model and specifications of the electromagnetic valve 121, the backwashing valve 141, the permeable membrane 41 and the impeller 43 need to be determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it is not necessary to be described in detail.

[0084] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A pure water supply device with purification structure, comprising a filter cartridge (1), a cartridge neck (2) is sealingly sleeved on the filter cartridge (1), a barrel cover (3) is detachably sealingly installed on the cartridge neck (2), and a cavity in communication is formed inside the filter cartridge (1), the cartridge neck (2) and the barrel cover (3), wherein the filter cartridge (1) is internally provided with a purification structure for purifying water source, a bottom-end water inlet pipe (11) is arranged at the bottom end of the side wall of the filter cartridge (1), a drain pipe (13) is arranged at the bottom end of the filter cartridge (1), an electromagnetic valve is connected at the drain pipe (13), a purified water outlet pipe (12) is arranged on the side wall of the cartridge neck (2), a connecting pipe (14) is in communication between the bottom-end water inlet pipe (11) and the purified water outlet pipe (12), a backwashing valve (141) is arranged on the connecting pipe (14), and the backwashing valve (141) is externally connected with a water source, characterized in that: an annular inner ledge (101) is arranged at the bottom of the inner wall of the filter cartridge (1); the purification structure is a purification mechanism (4) comprising a permeation membrane (41) internally arranged in the filter cartridge (1), the permeation membrane (41) is hollow, the permeation membrane (41) is axially limitingly inserted and connected with the inner ledge (101), a space is left between the side wall and the top end of the permeation membrane (41) and the filter cartridge (1), a rotating assembly (42) is coaxially arranged in the permeation membrane (41), the rotating assembly (42) is rotationally connected with the permeation membrane (41), the rotating assembly (42) comprises a central pipe (421) coaxially rotationally arranged with the permeation membrane (41), the central pipe (421) is hollow at the inside and is closed at the top and bottom ends, a through hole for water flow is arranged on the side wall of the central pipe (421), the part of the central pipe (421) located in the permeation membrane (41) is uniformly sleeved with a disc (423), and an impeller (43) serving as a power source is detachably fixed at the bottom end of the central pipe (421), a space for water flow is left between the circumferential side of the impeller (43) and the permeation membrane (41). A purified water end electromagnetic valve (121) is arranged at one end of the connecting pipe (14) extending out of the purified water outlet pipe (12). A top cover (411) is fixedly connected with the top end of the permeation membrane (41), and a bottom cover (412) is fixedly connected with the bottom end of the permeation membrane (41).

2. The apparatus for supplying pure water having a purifying structure according to claim 1, wherein: A communication pipe (413) is in communication with the bottom end of the bottom cover (412), the impeller (43) is located in the communication pipe (413), and a space for water flow is left between the inner wall of the communication pipe (413) and the impeller (43).

3. The apparatus for supplying pure water having a purifying structure according to claim 1, wherein: A positioning groove (414) is arranged on the inner wall of the bottom cover (412).

4. The apparatus for supplying pure water having a purifying structure according to claim 3, wherein: The central pipe (421) is sealingly rotationally inserted into the top cover (411) and the bottom cover (412).

5. The apparatus for supplying pure water having a purifying structure according to claim 3, wherein: ​ 6. The apparatus for supplying pure water having a purifying structure according to claim 3, wherein: ​ 7. The apparatus for supplying pure water having a purifying structure according to claim 5, wherein: The side wall of the center pipe (421) is provided with a through hole for water flow, which is a water outlet hole (422), the water outlet hole (422) is annularly distributed with multiple layers on the side wall of the center pipe (421), the disc (423) is fixedly sleeved between two adjacent water outlet holes (422), one end of the center pipe (421) extending out of the top cover (411) is rotatably sleeved with a top positioning disc (424), the top positioning disc (424) and the top cover (411) abut, and the bottom side wall of the center pipe (421) is rotatably and sealingly sleeved with a bottom positioning disc (425), and the bottom positioning disc (425) and the positioning groove (414) are sealingly and fixedly matched.

8. The apparatus for supplying pure water having a purifying structure according to claim 7, wherein: There is at least one layer of the water outlet hole (422) between the impeller (43) and the bottom positioning disc (425).

9. The apparatus for supplying pure water having a purifying structure according to claim 7, wherein: Multiple discs (423) are arranged between the top cover (411) and the bottom cover (412), the multiple discs (423) are the same in structure and size, and the bottom side of the disc (423) is provided with an arc-shaped groove (426).

10. The apparatus for supplying pure water having a purifying structure according to claim 9, wherein: The arc-shaped grooves (426) are uniformly arranged with the center of the disc (423) as the axis, and the multiple arc-shaped grooves (426) are radially arranged on the disc (423).

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