Filtering device for water supply pipeline

Abstract

The invention discloses a water supply pipeline filtering device, and relates to the technical field of water supply systems. The water supply pipeline filtering device comprises a main pipeline and an auxiliary pipeline arranged below the main pipeline, the two ends of the auxiliary pipeline are communicated with the main pipeline respectively, a first auxiliary pipe valve is arranged on the auxiliary pipeline, and a first main pipe valve, a filter and a second main pipe valve are sequentially arranged on the main pipeline and located between the two ends of the auxiliary pipeline. The auxiliary pipeline communicated with the main pipeline is additionally arranged below the main pipeline, and the valves are arranged on the main pipeline and the auxiliary pipeline, so that a switchable bypass water supply structure is formed; when the filter needs to be cleaned or replaced, only the first main pipe valve and the second main pipe valve need to be closed and the first auxiliary pipe valve needs to be opened, water flow can be temporarily switched to the auxiliary pipeline for continuous conveying, continuous water supply is achieved, the problem that water must be cut off when an existing filter is maintained is solved, and the reliability of a water supply system in a high-demand continuous water use scene is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of water supply system technology, specifically to a water supply pipeline filtration device. Background Technology

[0002] In industrial production and residential water supply systems, water supply pipelines play a crucial role in transporting tap water from the municipal water network to end-users. Installing preliminary filtration devices in these pipelines to filter the tap water is a necessary measure to ensure water safety and the normal operation of terminal equipment.

[0003] Currently, a common preliminary filtration method is to install Y-type filters or basket filters on the main water supply pipe. These filters typically consist of a housing, filter screen, and drain outlet, using metal or nylon filter screens to intercept solid particles in the water flow, thereby achieving physical filtration.

[0004] However, when the filter screen needs cleaning or replacement due to accumulated impurities from prolonged use, the valves before and after the filter must be closed to cut off the water flow, causing a complete water supply interruption. This not only affects users' normal water use, but also causes significant inconvenience, especially in scenarios with high continuous water demand. Summary of the Invention

[0005] The purpose of this application is to provide a water supply pipeline filtration device to solve the problem of water supply pipeline interruption caused by cleaning or replacing existing filters.

[0006] The technical solution adopted by this application to solve its technical problem is: A water supply pipeline filtration device includes a main pipeline and a secondary pipeline located below the main pipeline. The two ends of the secondary pipeline are respectively connected to the main pipeline. A first secondary valve is provided on the secondary pipeline. A first main valve, a filter, and a second main valve are sequentially provided on the main pipeline between the two ends of the secondary pipeline.

[0007] Furthermore, the filter includes a mounting block fixedly sleeved on the main pipe. The mounting block has a vertically arranged mounting groove with an open top. The upper and lower sides of the main pipe are symmetrically provided with arc-shaped through grooves communicating with the mounting groove. An insert plate is movably inserted into the mounting groove, passing through the arc-shaped through groove. The insert plate seals the inner cavity of the main pipe and is sealed with the arc-shaped through groove. The insert plate has a mounting hole communicating with the inner cavity of the main pipe. A filter assembly is provided in the mounting hole. The mounting block is provided with a fixing member for fixing the insert plate.

[0008] Furthermore, the filter assembly includes a retaining ring disposed within the mounting hole and a filter box disposed within the retaining ring, the open end of the filter box facing the water flow.

[0009] Furthermore, a positioning ring is fixed to the inner wall of the fixed ring at the end facing away from the water flow, and a magnetic ring is fixed to the side of the positioning ring facing the water flow. The filter box is disposed inside the fixed ring and is magnetically connected to the magnetic ring.

[0010] Furthermore, a sealing plate is connected to the upper end of the insert plate, and the sealing plate is in a sealed fit with the upper end of the mounting block.

[0011] Furthermore, the fixing component includes a fixing block, a first spring, a control rod, and a control plate. The inner wall of the mounting groove has a horizontally arranged device groove. The fixing block is slidably fitted in the device groove. One end of the fixing block away from the insert plate is connected to one end of the control rod. The other end of the control rod extends movably through the outside of the mounting block and is connected to the control plate. The first spring is sleeved on the control rod, and its two ends abut against the bottom of the fixing block and the device groove, respectively. The insert plate has a fixing hole, and the end of the fixing block facing the insert plate is used to insert into the fixing hole.

[0012] Furthermore, the inner wall of the mounting groove also has a horizontally arranged reinforcing groove. The reinforcing groove and the device groove are respectively located on both sides of the main pipe. A reinforcing block is slidably fitted in the reinforcing groove. A second spring is provided between the end of the reinforcing block away from the insert plate and the bottom of the reinforcing groove. The insert plate has a reinforcing hole. The end of the reinforcing block facing the insert plate is used to insert into the reinforcing hole. The upper and lower sides of the end of the reinforcing block facing the insert plate are provided with guide slopes that guide and cooperate with the end of the reinforcing hole.

[0013] Furthermore, the slide plate is connected to the first secondary pipe valve, the first main pipe valve, and the second main pipe valve via a linkage assembly; the linkage assembly is configured such that when the slide plate moves up and down, it drives the valve stems of the first secondary pipe valve, the first main pipe valve, and the second main pipe valve to rotate. When the insert plate moves upward and completely disengages from the mounting slot, the first secondary pipe valve is in the open state, and the first main pipe valve and the second main pipe valve are in the closed state; when the insert plate moves downward and is completely inserted into the mounting slot, the first secondary pipe valve is in the closed state, and the first main pipe valve and the second main pipe valve are in the open state.

[0014] Furthermore, the linkage assembly includes a linkage rod fixed to the lower end of the insert plate and moving downward through the mounting block. The lower end of the linkage rod is connected to a downwardly extending lead screw, and a rotating block is threaded onto the lead screw. The rotating block is rotatably connected between the main pipe and the secondary pipe, and the rotating block is driven by the valve stems of the first secondary pipe valve, the first main pipe valve, and the second main pipe valve through a gear mechanism.

[0015] Furthermore, the gear mechanism includes a driving gear fixed on the rotating block, a connecting gear rotatably connected between the main pipe and the auxiliary pipe and meshing with the driving gear, and a driven gear fixed on each valve stem and meshing with the connecting gear.

[0016] The beneficial effects of this application are: The water supply pipeline filtration device provided in this application provides a switchable bypass water supply structure by adding a secondary pipeline connected to the main pipeline below it and installing valves on both the main pipeline and the secondary pipeline. When the filter needs to be cleaned or replaced, the water flow can be temporarily switched to the secondary pipeline to continue delivery simply by closing the first main pipeline valve and the second main pipeline valve and opening the first secondary pipeline valve, thus achieving continuous water supply. This solves the problem that water must be shut off during the maintenance of existing filters and significantly improves the reliability of the water supply system in high-demand continuous water use scenarios. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the water supply pipeline filtration device provided in the embodiments of this application; Figure 2 yes Figure 1 A sectional view; Figure 3 yes Figure 2 Enlarged view of section A in the middle; Figure 4 yes Figure 2 Enlarged view of section B in the middle; Figure 5 yes Figure 1 Another sectional view from the direction; Figure 6 yes Figure 5 Enlarged view of section C; Figure 7 yes Figure 5 Enlarged view of section D in the middle; Figure 8 This is a schematic diagram of the structure after the insert plate is pulled out of the mounting slot; Figure 9 yes Figure 8 A sectional view.

[0019] Figure label: 1-Main pipeline; 11-Arc-shaped through-groove; 2-Secondary pipe; 3-First auxiliary valve; 4-First main valve; 5-Filter; 51-Mounting block; 511-Mounting slot; 512-Device slot; 513-Reinforcing slot; 52-Insert plate; 521-Mounting hole; 522-Fixing hole; 523-Reinforcing hole; 53-Filter assembly; 531-Fixing ring; 532-Filter box; 533-Positioning ring; 534-Magnetic ring; 54-Fixed component; 541-Fixed block; 542-First spring; 543-Control lever; 544-Control panel; 55 - Closed panel; 56-Reinforcing block; 561-Guide ramp; 57 - Second spring; 58 - Sealing gasket; 59-Handle; 6-Second main valve; 7-Linkage components; 71-Linkage rod; 72-Lead screw; 73-Rotating block; 74-Driving gear; 75-Connecting gear; 76-Driven gear; 77-Connecting rod; 8-Second auxiliary valve. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0021] In the description of this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] See Figure 1 This application provides a water supply pipeline filtration device, including a main pipeline 1 and a secondary pipeline 2 located below the main pipeline 1. The two ends of the secondary pipeline 2 are respectively connected to the main pipeline 1. A first secondary valve 3 is provided on the secondary pipeline 2. A first main valve 4, a filter 5, and a second main valve 6 are sequentially provided on the main pipeline 1 between the two ends of the secondary pipeline 2.

[0024] Specifically, the main pipe 1 is horizontally installed and connected in series within the water supply pipeline to transport tap water. The secondary pipe 2 is located below the main pipe 1, and is U-shaped, with both ends connected to the inner cavity of the main pipe 1 to form a bypass path below it. A first secondary pipe valve 3 is connected in series with the secondary pipe 2 to control its opening and closing. A first main pipe valve 4, a filter 5, and a second main pipe valve 6 are connected in series with the main pipe 1 along the water flow direction. The first main pipe valve 4 and the second main pipe valve 6 control the opening and closing of the main pipe 1 on both sides of the filter 5. The filter 5 filters the tap water in the main pipe 1, thereby intercepting solid particles in the water flow.

[0025] The water supply pipeline filtration device provided in this application provides a switchable bypass water supply structure by adding a secondary pipeline 2 connected to the main pipeline 1 below it, and installing valves on both the main pipeline 1 and the secondary pipeline 2. During normal water supply, the first main pipe valve 4 and the second main pipe valve 6 are opened, and the first secondary pipe valve 3 is closed, allowing water to continuously flow after filtration through the main pipeline 1. When cleaning or replacing the filter 5 is required, the first main pipe valve 4 and the second main pipe valve 6 are closed to cut off the main pipeline 1, and then the first secondary pipe valve 3 is opened to temporarily switch the water flow to the secondary pipeline 2, ensuring continuous water supply during filter 5 maintenance. After filter 5 maintenance is completed, the first main pipe valve 4 and the second main pipe valve 6 are reopened, and the first secondary pipe valve 3 is closed to restore normal filtration and water supply to the main pipeline 1. This application solves the problem of water outages during existing filter maintenance, significantly improving the reliability of the water supply system in high-demand continuous water use scenarios.

[0026] In some embodiments, see Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 8 , Figure 9The filter 5 includes a mounting block 51 fixedly sleeved on the main pipe 1. The mounting block 51 has a vertically arranged mounting groove 511 with an open top. The main pipe 1 has symmetrical arc-shaped through grooves 11 on its upper and lower sides that communicate with the mounting groove 511. A plate 52 is movably inserted into the mounting groove 511, passing through the arc-shaped through groove 11. The plate 52 seals the inner cavity of the main pipe 1 and is sealed to the arc-shaped through groove 11. The plate 52 has a mounting hole 521 that communicates with the inner cavity of the main pipe 1. A filter assembly 53 is provided in the mounting hole 521. The mounting block 51 is provided with a fixing member 54 for fixing the plate 52.

[0027] Specifically, the mounting block 51 is cubic in shape, with a horizontally penetrating circular hole at its center. The inner diameter of the circular hole transitions with the outer diameter of the main pipe 1. After the main pipe 1 is pre-inserted through this circular hole, the inner wall of the circular hole of the mounting block 51 and the outer wall of the main pipe 1 are fully welded together with fillet welds to form a rigid, sealed connection. The mounting block 51 has a vertically arranged mounting groove 511 inside, which is open at the top and closed at the bottom, with the lower end of the mounting groove 511 located below the main pipe 1. A pair of arc-shaped through slots 11 are formed on the upper and lower sides of the main pipe 1 at positions corresponding to the mounting grooves 511. The distance between the two ends of each arc-shaped through slot 11 is equal to the inner diameter of the main pipe 1. The arc-shaped through slots 11 communicate with the mounting grooves 511, and their shapes and dimensions in the horizontal plane are identical. The insert plate 52 can be a rectangular stainless steel plate, with a thickness that fits the mounting groove 511 with a clearance. A sealing ring can be embedded around the perimeter of the insert plate 52, or a sealing layer can be formed by bonding sealant, so that it forms a radial seal when passing through the arc-shaped through groove 11, preventing tap water from leaking between the insert plate 52 and the arc-shaped through groove 11. The insert plate 52 has a horizontal through mounting hole 521 in the center, and a filter assembly 53 for filtering water flow is installed inside the mounting hole 521.

[0028] During normal water supply, the insert plate 52 is fully inserted into the mounting groove 511 and fixed by the fastener 54. The mounting hole 521 is coaxial with the main pipe 1, and the water flows through the filter assembly 53 to complete filtration. When it is necessary to clean or replace the filter assembly 53, simply close the first main valve 4 and the second main valve 6, loosen the fastener 54, and the insert plate 52 can be vertically pulled out along the mounting groove 511. The filter assembly 53 moves out of the mounting groove 511 along with the insert plate 52, and then the filter assembly 53 can be flushed or replaced. After the filter assembly 53 has been flushed or replaced, the filter assembly 53 is reinserted into the mounting groove 511 along with the insert plate 52, and the insert plate 52 is fixed by the fastener 54. Opening the first main valve 4 and the second main valve 6 will restore the normal filtration and water supply of the main pipe 1.

[0029] Compared to traditional Y-type filters or basket filters, the filter 5 of this application is directly integrated into the pipe wall of the main pipe 1. By installing the filter assembly 53 on the removable insert plate 52, when the filter assembly 53 needs to be flushed or replaced, the insert plate 52 can be vertically pulled out along the mounting groove 511 simply by loosening the fixing piece 54, without having to disassemble the filter 5 as a whole, which significantly shortens the maintenance time of the filter 5.

[0030] In some embodiments, see Figure 6 The filter assembly 53 includes a retaining ring 531 disposed in the mounting hole 521 and a filter box 532 disposed in the retaining ring 531, with the open end of the filter box 532 facing the water flow.

[0031] Specifically, the retaining ring 531 is pre-pressed into the mounting hole 521, and the two can be interference-fitted. Neither end face of the retaining ring 531 extends beyond the corresponding end face of the mounting hole 521, forming a fully embedded structure to prevent protrusions from obstructing the insertion and removal of the insert plate 52. The filter box 532 can be made of stainless steel or ABS engineering plastic. It is a cylindrical structure with one open end, consisting of a circular bottom wall and a ring of side walls. Several filter holes are arrayed on the bottom wall. The filter box 532 is fixed inside the retaining ring 531, with no exposed protrusions at either end, and the opening faces the direction of water flow, allowing filtered impurities to be collected inside the filter box 532. During maintenance, it can be pulled out along with the insert plate 52 for flushing or replacement.

[0032] In some embodiments, see Figure 6 A positioning ring 533 is fixed to the inner wall of the fixed ring 531 at the end facing away from the water flow, and a magnetic ring 534 is fixed to the side of the positioning ring 533 facing the water flow. The filter box 532 is located inside the fixed ring 531 and is magnetically connected to the magnetic ring 534.

[0033] Specifically, the positioning ring 533 and the fixing ring 531 can be welded together or integrally formed. The positioning ring 533 has a groove on the side facing the water flow, and a magnetic ring 534 is embedded in this groove, with the end face of the magnetic ring 534 flush with the end face of the positioning ring 533. During installation, the filter box 532 is inserted into the fixing ring 531 from the upstream side until the bottom wall of the filter box 532 is in contact with the magnetic ring 534 on the positioning ring 533. Under the magnetic attraction of the magnetic ring 534, the filter box 532 is axially locked and completely submerged within the fixing ring 531, with no exposed protrusions. This effectively prevents the filter box 532 from shifting or loosening under the impact of water flow, ensuring the stability and reliability of the filtration process. When cleaning or replacing the filter box 532 is required, the filter box 532 is pulled out along with the insert plate 52. The filter box 532 can be removed by hand, overcoming the magnetic attraction, facilitating cleaning and replacement.

[0034] In some embodiments, the inner wall of the retaining ring 531 is provided with a positioning groove extending along its axial direction, and the outer wall of the filter box 532 is provided with a positioning block that slides within the positioning groove. By utilizing the cooperation between the positioning groove and the positioning block, the circumferential movement of the filter box 532 can be limited, preventing the filter box 532 from rotating circumferentially under the impact of water flow.

[0035] In some embodiments, see Figure 1 , Figure 2 , Figure 3 The upper end of the insert plate 52 is connected to a sealing plate 55, which is sealed to the upper end of the mounting block 51.

[0036] Specifically, a rectangular groove is formed around the opening of the mounting groove 511 on the upper surface of the mounting block 51. A sealing gasket 58 is provided in the groove, and the upper surface of the sealing gasket 58 protrudes from the groove. When the insert plate 52 is inserted into the mounting groove 511 and in place, the sealing plate 55 can fit tightly with the sealing gasket 58, causing the sealing gasket 58 to rebound evenly and form a continuous sealing barrier to prevent external impurities from falling into the mounting groove 511.

[0037] In some embodiments, see Figure 2 A handle 59 is fixed on the closed plate 55. By setting the handle 59, the operator can hold the handle 59 to more easily grab and lift the insert plate 52, thus improving the convenience of operation.

[0038] The fastener 54 may include several bolts. After the insert plate 52 is inserted into the mounting groove 511, the insert plate 52 is fixedly connected to the mounting block 51 by the bolts.

[0039] In some embodiments, see Figure 3 The fixing component 54 includes a fixing block 541, a first spring 542, a control rod 543, and a control plate 544. The inner wall of the mounting groove 511 has a horizontally arranged device groove 512. The fixing block 541 is slidably fitted in the device groove 512. One end of the fixing block 541 away from the insert plate 52 is connected to one end of the control rod 543. The other end of the control rod 543 extends movably through the outside of the mounting block 51 and is connected to the control plate 544. The first spring 542 is sleeved on the control rod 543, and its two ends abut against the bottom of the fixing block 541 and the device groove 512, respectively. The insert plate 52 has a fixing hole 522. One end of the fixing block 541 facing the insert plate 52 is used to insert into the fixing hole 522.

[0040] Specifically, when the insert plate 52 is inserted into the mounting groove 511 and the device groove 512 is aligned with the fixing hole 522, the fixing block 541 is inserted into the fixing hole 522 under the elastic force of the first spring 542, forming a mechanical self-locking mechanism that rigidly connects the insert plate 52 and the mounting block 51, preventing the insert plate 52 from shifting or loosening under fluid pressure. This fixing method not only improves the stability of the insert plate 52 but also makes the disassembly of the insert plate 52 more convenient and efficient. During disassembly, the operator only needs to pull the control plate 544 with one hand, and the control rod 543 drives the fixing block 541 to compress the first spring 542 and disengage from the fixing hole 522, thereby releasing the fixing of the insert plate 52. Then, the insert plate 52 can be pulled out vertically along the mounting groove 511.

[0041] In some embodiments, see Figure 4 The inner wall of the mounting groove 511 also has a horizontally arranged reinforcing groove 513. The reinforcing groove 513 and the device groove 512 are respectively located on both sides of the main pipe 1. A reinforcing block 56 is slidably fitted in the reinforcing groove 513. A second spring 57 is provided between the end of the reinforcing block 56 away from the insert plate 52 and the bottom of the reinforcing groove 513. The insert plate 52 is provided with a reinforcing hole 523. The end of the reinforcing block 56 facing the insert plate 52 is used to insert into the reinforcing hole 523. The upper and lower sides of the end of the reinforcing block 56 facing the insert plate 52 are provided with guide slopes 561 that guide and cooperate with the end of the reinforcing hole 523.

[0042] Specifically, when the insert plate 52 is inserted into the mounting groove 511 and the reinforcing groove 513 is aligned with the reinforcing hole 523, the reinforcing block 56 is inserted into the reinforcing hole 523 under the elastic force of the second spring 57, thereby further enhancing the stability of the insert plate 52 in the mounting groove 511. Through the cooperation of the fixing block 541 and the reinforcing block 56, the insert plate 52 is pressed into the mounting groove 511 from the upper and lower sides of the main pipe 1 along the axial direction of the main pipe 1, effectively preventing it from shifting or loosening under fluid pressure. In addition, by providing guide slopes 561 on the upper and lower sides of the end of the reinforcing block 56 facing the insert plate 52, the insert plate 52 can automatically push the reinforcing block 56 back during insertion and removal, without additional operation, facilitating the insertion and removal of the insert plate 52.

[0043] In some embodiments, see Figure 1 The slide plate 52 is connected to the first auxiliary valve 3, the first main valve 4, and the second main valve 6 via the linkage assembly 7. The linkage assembly 7 is configured such that when the slide plate 52 moves up and down, it drives the valve stems of the first auxiliary valve 3, the first main valve 4, and the second main valve 6 to rotate. When the slide plate 52 moves upward and completely disengages from the mounting groove 511, the first auxiliary valve 3 is in the open state, and the first main valve 4 and the second main valve 6 are in the closed state. When the slide plate 52 moves downward and is completely inserted into the mounting groove 511, the first auxiliary valve 3 is in the closed state, and the first main valve 4 and the second main valve 6 are in the open state.

[0044] Specifically, by setting up the linkage component 7, the linear displacement of the slide gate 52 is converted into the rotational movement of the first auxiliary pipe valve 3, the first main pipe valve 4, and the second main pipe valve 6, forming a mechanical interlock. This transforms the maintenance and valve switching of the filter 5 from manual operation to a fully automatic process of insertion and removal, improving operational efficiency. Simultaneously, the mechanical displacement of the slide gate 52 is rigidly interlocked with the status of the three valves, completely eliminating human error such as forgetting to open the bypass or close the main pipe during operation, thus improving operational accuracy. Pulling the slide gate 52 upwards automatically opens the first auxiliary pipe valve 3 and closes the first main pipe valve 4 and the second main pipe valve 6, achieving water supply to the auxiliary pipe 2 and shut-off of the main pipe 1. Inserting the slide gate 52 downwards automatically closes the first auxiliary pipe valve 3 and opens the first main pipe valve 4 and the second main pipe valve 6, achieving shut-off of the auxiliary pipe 2 and filtration and water supply to the main pipe 1. No additional tools or inspections are required throughout the process. The linear displacement of the slide gate 52 directly reflects the valve opening, allowing for intuitive confirmation of the valve status on-site without additional indicators, thus improving maintenance efficiency.

[0045] In some embodiments, see Figure 7 , Figure 8 , Figure 9 The linkage component 7 includes a linkage rod 71 fixed to the lower end of the insert plate 52 and moving downward through the mounting block 51. The lower end of the linkage rod 71 is connected to a downwardly extending lead screw 72. A rotating block 73 is threaded onto the lead screw 72. The rotating block 73 is rotatably connected between the main pipe 1 and the auxiliary pipe 2. The rotating block 73 is connected to the valve stems of the first auxiliary pipe valve 3, the first main pipe valve 4, and the second main pipe valve 6 through a gear mechanism.

[0046] Specifically, the linkage rod 71 is made of stainless steel, and its upper end is threadedly locked to the bottom center of the insert plate 52. The bottom of the mounting block 51 has a bottom hole communicating with the mounting groove 511. The lower end of the linkage rod 71 passes through the bottom hole and connects to the upper end of the lead screw 72. The linkage rod 71 and the bottom hole form a linear guide, ensuring that the linkage rod 71 can only move vertically. The outer diameter of the lead screw 72 is smaller than the inner diameter of the bottom hole so that it can pass through the bottom hole. The lead screw 72 adopts a large helix angle trapezoidal thread, forming a non-self-locking helical pair with the nut section of the rotating block 73, so that the vertical linear displacement of the lead screw 72 can easily drive the rotating block 73 to rotate. The effective length of the thread on the lead screw 72 should precisely match the axial stroke corresponding to the rotation angle required for the rotating block 73 to drive the valve from fully closed to fully open, without leaving redundancy, and not allowing disengagement before the end of the stroke, thereby completely eliminating the hidden danger of the valve not being fully opened or closed. The threaded inlet inside the rotating block 73 is designed with a tapered or chamfered shape to facilitate automatic thread alignment when the lead screw 72 is inserted into the rotating block 73, avoiding misalignment. A bracket is welded between the main pipe 1 and the auxiliary pipe 2. The rotating block 73 is rotatably mounted on the bracket via a bearing assembly. The rotating block 73 is also connected to the valve stems of the first auxiliary pipe valve 3, the first main pipe valve 4, and the second main pipe valve 6 via a gear mechanism, so as to drive the rotation of each valve stem using the rotating block 73 to achieve mechanical linkage.

[0047] In some embodiments, see Figure 8 , Figure 9 The gear mechanism includes a drive gear 74 fixed on a rotating block 73, a connecting gear 75 rotatably connected between the main pipe 1 and the auxiliary pipe 2 and meshing with the drive gear 74, and a driven gear 76 fixed on each valve stem and meshing with the connecting gear 75.

[0048] Specifically, the driving gear 74 is coaxially locked to the outer circumference of the rotating block 73, and the connecting gear 75 is fixed to the vertically arranged connecting rod 77. The two ends of the connecting rod 77 are connected to the main pipe 1 and the secondary pipe 2 respectively through bearing assemblies. The first secondary pipe valve 3, the first main pipe valve 4, and the second main pipe valve 6 are all low-resistance rotary valves, with each valve stem parallel to the connecting rod 77. To simplify the transmission chain, the first secondary pipe valve 3 and the first main pipe valve 4 share the same valve stem, on which a driven gear 76 is fixed. A second secondary pipe valve 8 can also be connected in series on the secondary pipe 2. The opening and closing states of the second secondary pipe valve 8 are consistent with those of the first secondary pipe valve 3. The second secondary pipe valve 8 and the second main pipe valve 6 also share the same valve stem, on which a driven gear 76 is fixed. The two driven gears 76 mesh with the two connecting gears 75 respectively, and the two connecting gears 75 simultaneously mesh with the driving gear 74, ensuring that the first secondary pipe valve 3 and the second secondary pipe valve 8 open synchronously, while the first main pipe valve 4 and the second main pipe valve 6 close synchronously, and vice versa. Through force-torque calculation, the output torque of the lead screw 72 within its stroke, after deducting the efficiency of the gear pair and bearing friction, is still greater than the total resistance torque of the four valves, ensuring reliable linkage without jamming.

[0049] The working principle of the water supply pipeline filtration device provided in this application embodiment is as follows: See Figures 1 to 7 The first main pipe valve 4 and the second main pipe valve 6 are in the open state, and the first auxiliary pipe valve 3 and the second auxiliary pipe valve 8 are in the closed state. At this time, the main pipe 1 is used to filter and supply tap water. When maintenance of the filter assembly 53 is required, the operator pulls the control plate 544 with one hand, which drives the fixing block 541 to compress the first spring 542 and disengage it from the fixing hole 522 through the control rod 543, thereby releasing the fixation of the insert plate 52. The operator then holds the handle 59 with the other hand and pulls it upward to vertically pull the insert plate 52 out along the mounting groove 511. During the process, the insert plate 52 automatically pushes the reinforcing block 56 back, causing the reinforcing block 56 to disengage from the reinforcing hole 523. As the insert plate 52 moves upward, it drives the lead screw 72 upward via the linkage rod 71. The lead screw 72 drives the rotating block 73 to rotate, which in turn drives the drive gear 74 to rotate. The drive gear 74 then drives the driven gear 76 to rotate via the connecting gear 75. The driven gear 76 then drives the valve stem connected to it to rotate, causing the first main pipe valve 4 and the second main pipe valve 6 to gradually close, and the first auxiliary pipe valve 3 and the second auxiliary pipe valve 8 to gradually open. When the lead screw 72 is completely separated from the rotating block 73, the first main pipe valve 4 and the second main pipe valve 6 are completely closed, and the first auxiliary pipe valve 3 and the second auxiliary pipe valve 8 are completely open, thus achieving the cut-off of the main pipe 1 and the opening of the auxiliary pipe 2, ensuring that tap water can continue to be delivered through the auxiliary pipe 2. Figure 8 , Figure 9 As shown; at this point, the filter box 532 can be removed from the retaining ring 531 for cleaning or replacement.

[0050] After the filter box 532 is maintained, it is installed into the fixing ring 531, and the insert plate 52 is reinserted into the mounting slot 511. As the insert plate 52 is inserted, when the lead screw 72 and the rotating block 73 re-engage, the lead screw 72 drives the rotating block 73 to rotate in the opposite direction. The rotating block 73 drives the drive gear 74 to rotate in the opposite direction. The drive gear 74 then drives the driven gear 76 to rotate in the opposite direction through the connecting gear 75. The driven gear 76 then drives the valve stem connected to it to rotate in the opposite direction, so that the first main valve 4 and the second main valve 6 gradually open, and the first auxiliary valve 3 and the second auxiliary valve 8 gradually close. After the insert plate 52 is inserted into place, the reinforcing block 56 is inserted into the reinforcing hole 523, the first main pipe valve 4 and the second main pipe valve 6 are fully opened, and the first auxiliary pipe valve 3 and the second auxiliary pipe valve 8 are fully closed, restoring the smooth flow of the main pipe 1 and cutting off the auxiliary pipe 2, and reusing the main pipe 1 to filter and supply water. Then, the control plate 544 is released, and the fixing block 541 is inserted into the fixing hole 522 under the elastic force of the first spring 542 to fix the insert plate 52 in the mounting groove 511, preventing the insert plate 52 from shifting or loosening under the action of fluid pressure.

[0051] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A water supply pipeline filtration device, characterized in that, It includes a main pipe (1) and a secondary pipe (2) located below the main pipe (1). The two ends of the secondary pipe (2) are connected to the main pipe (1) respectively. A first secondary pipe valve (3) is provided on the secondary pipe (2). A first main pipe valve (4), a filter (5) and a second main pipe valve (6) are sequentially provided on the main pipe (1) between the two ends of the secondary pipe (2).

2. The water supply pipeline filtration device according to claim 1, characterized in that, The filter (5) includes a mounting block (51) fixedly sleeved on the main pipe (1). The mounting block (51) has a vertically arranged mounting groove (511) with an open top. The main pipe (1) has symmetrical arc-shaped through grooves (11) communicating with the mounting groove (511) on its upper and lower sides. A plate (52) is movably inserted into the mounting groove (511) and passes through the arc-shaped through groove (11). The plate (52) seals the inner cavity of the main pipe (1) and seals with the arc-shaped through groove (11). The plate (52) has a mounting hole (521) communicating with the inner cavity of the main pipe (1). A filter assembly (53) is provided in the mounting hole (521). The mounting block (51) has a fixing member (54) for fixing the plate (52).

3. The water supply pipeline filtration device according to claim 2, characterized in that, The filter assembly (53) includes a retaining ring (531) disposed in the mounting hole (521) and a filter box (532) disposed in the retaining ring (531), the open end of the filter box (532) facing the water flow.

4. The water supply pipeline filtration device according to claim 3, characterized in that, A positioning ring (533) is fixed to the inner wall of the fixed ring (531) facing away from the water flow. A magnetic ring (534) is fixed to the side of the positioning ring (533) facing the water flow. The filter box (532) is located inside the fixed ring (531) and is magnetically connected to the magnetic ring (534).

5. The water supply pipeline filtration device according to claim 2, characterized in that, The upper end of the insert plate (52) is connected to a sealing plate (55), and the sealing plate (55) is sealed to the upper end of the mounting block (51).

6. The water supply pipeline filtration device according to claim 2, characterized in that, The fixing component (54) includes a fixing block (541), a first spring (542), a control rod (543), and a control plate (544). The inner wall of the mounting groove (511) has a horizontally arranged device groove (512). The fixing block (541) is slidably fitted in the device groove (512). One end of the fixing block (541) away from the insert plate (52) is connected to one end of the control rod (543). The other end of the control rod (543) extends through the outside of the mounting block (51) and is connected to the control plate (544). The first spring (542) is sleeved on the control rod (543), and its two ends abut against the bottom of the fixing block (541) and the device groove (512), respectively. The insert plate (52) is provided with a fixing hole (522). One end of the fixing block (541) facing the insert plate (52) is used to insert into the fixing hole (522).

7. The water supply pipeline filtration device according to claim 6, characterized in that, The inner wall of the mounting groove (511) also has a horizontally arranged reinforcing groove (513). The reinforcing groove (513) and the device groove (512) are respectively arranged on both sides of the main pipe (1). A reinforcing block (56) is slidably fitted in the reinforcing groove (513). A second spring (57) is provided between the end of the reinforcing block (56) away from the insert plate (52) and the bottom of the reinforcing groove (513). A reinforcing hole (523) is provided on the insert plate (52). The end of the reinforcing block (56) facing the insert plate (52) is used to be inserted into the reinforcing hole (523). The upper and lower sides of the end of the reinforcing block (56) facing the insert plate (52) are provided with guide slopes (561) that guide and cooperate with the end of the reinforcing hole (523).

8. The water supply pipeline filtration device according to claim 2, characterized in that, The insert plate (52) is connected to the first secondary pipe valve (3), the first main pipe valve (4) and the second main pipe valve (6) via a linkage assembly (7); the linkage assembly (7) is configured such that when the insert plate (52) moves up and down, it drives the valve stems of the first secondary pipe valve (3), the first main pipe valve (4) and the second main pipe valve (6) to rotate. When the insert plate (52) moves upward and completely disengages from the mounting groove (511), the first auxiliary pipe valve (3) is in the open state, and the first main pipe valve (4) and the second main pipe valve (6) are in the closed state; when the insert plate (52) moves downward and is completely inserted into the mounting groove (511), the first auxiliary pipe valve (3) is in the closed state, and the first main pipe valve (4) and the second main pipe valve (6) are in the open state.

9. The water supply pipeline filtration device according to claim 8, characterized in that, The linkage assembly (7) includes a linkage rod (71) fixed to the lower end of the insert plate (52) and moving downward through the mounting block (51). The lower end of the linkage rod (71) is connected to a downwardly extending lead screw (72). A rotating block (73) is threaded onto the lead screw (72). The rotating block (73) is rotatably connected between the main pipe (1) and the secondary pipe (2). The rotating block (73) is connected to the valve stems of the first secondary pipe valve (3), the first main pipe valve (4), and the second main pipe valve (6) through a gear mechanism.

10. The water supply pipeline filtration device according to claim 9, characterized in that, The gear mechanism includes a drive gear (74) fixed on the rotating block (73), a connecting gear (75) rotatably connected between the main pipe (1) and the auxiliary pipe (2) and meshing with the drive gear (74), and a driven gear (76) fixed on each valve stem and meshing with the connecting gear (75).

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