Water supply pipeline filtering device

Abstract

The present invention belongs to the technical field of water pipe fittings, and in particular to a water supply pipeline filtering device. In view of the problems that the filtering devices in the prior art sacrifice water pressure and flow rate and require frequent replacement of the filter medium, the following scheme is proposed, including an arched pipe including a middle pipe, two mutually symmetrical oblique pipes, and two mutually symmetrical end pipes. The diameters and wall thicknesses of the middle pipe, the oblique pipe, and the end pipes are the same. The arched pipe as a whole is arched upward. A vertical strip pipe is passed through the circumferential outer wall of the middle pipe near the bottom, and the cross-section of the strip pipe is a strip hole structure. The length direction of the strip hole is parallel to the axis of the middle pipe. When in use, the present invention allows the water to be filtered to pass through the filter screen from bottom to top, and under the action of gravity, some impurities are prevented from being blocked on the filter screen, and the anti-backwash mechanism can intercept the blocked particles at the bottom of the main filter box.

Description

Technical Field

[0001] The present invention relates to the technical field of water pipe fittings, and in particular to a water supply pipeline filtering device. Background Art

[0002] Water supply line filtration is crucial for ensuring clean water quality and the proper functioning of pipes and equipment. Water sources often contain impurities such as sand, dirt, rust, algae, and bacteria, which can affect water quality and cause pipe blockage or damage. This is especially true for sprinkler irrigation pipes, where larger particles can easily clog the nozzles. An effective filtration system can remove these undesirable substances, maintaining clean water quality and extending the life of equipment and pipes.

[0003] After searching, it was found that the water supply pipeline filtering devices in the existing technology mostly adopt the method of installing a filter in the middle of the water pipe. Layers of filter media need to be set in the filter. The filtering effect of this filter is achieved at the expense of water pressure and flow rate and the filter media must be frequently replaced. Therefore, we propose a new water supply pipeline filtering device that can avoid the need to replace the filter media and does not affect the flow rate. Summary of the Invention

[0004] In order to solve the technical problems that the filtration device in the prior art sacrifices water pressure and flow rate and requires frequent replacement of the filter medium, the present invention adopts the following technical solutions:

[0005] A water supply pipeline filtering device comprises an arched pipe, the arched pipe comprising a middle pipe, two mutually symmetrical oblique pipes and two mutually symmetrical end pipes, the diameters and wall thicknesses of the middle pipe, the oblique pipe and the end pipes are the same, and the arched pipe as a whole is arched upward, a vertical strip pipe is passed through the circumferential outer wall of the middle pipe near the bottom, and the cross section of the strip pipe is a strip hole structure, the length direction of the strip hole is parallel to the axis of the middle pipe, the bottom end of the strip pipe is connected to the main filter box, the main filter box as a whole is a rectangular box-shaped structure with a cavity opening facing the water outlet side, and the middle of the middle pipe and the strip pipe is sealed with the same An inclined partition, an L-shaped partition is fixed near the top between the front and rear inner walls of the main filter box, the top of the L-shaped partition is sealed and docked with the bottom end of the inclined partition, and the bottom end of the L-shaped partition is fixed with an inclined baffle extending obliquely toward the opening of the main filter box, and two mutually symmetrical fan-shaped water holes are opened near the middle on the surface of the inclined baffle, the lower surface of the inclined baffle is located at the two fan-shaped water holes and is provided with a filter screen tightly attached to the fan-shaped water holes, and the upper surface of the inclined baffle is provided with a cleaning mechanism; the interior of the main filter box is provided with an anti-backlash mechanism located obliquely below the filter screen to prevent large particles of debris mixed with water from impacting the filter screen, and a sealed side cover is fixed at the opening of the main filter box.

[0006] Preferably, the cleaning mechanism includes a collecting pipe embedded in the inside of the inclined pipe near one end of the water inlet, and a sealed bearing is embedded in the middle of the inclined partition near the top, and a transmission rod is rotatably connected in the sealed bearing, a propeller blade is fixed to the end of the transmission rod close to the collecting pipe, and a small runner is fixed to the end of the transmission rod away from the collecting pipe, and the surface of the small runner is rotatably connected to a connecting rod extending into the upper surface of the inclined baffle near the circumferential edge; a grooved slide rail is fixed to the upper surface of the inclined baffle between the two fan-shaped water holes, and the grooved slide rail Mutually symmetrical L-shaped shaft rods are respectively provided on both sides of the rail, and the top ends of the two L-shaped shaft rods are rotatably connected to mutually symmetrical folding cleaning rods, and the ends of the two folding cleaning rods that are close to each other are hinged with the same double-headed hinge block; the top of the double-headed hinge block has an arc-shaped notch, and the bottom of the groove of the arc-shaped notch is plugged with a main shaft 1, and the other end of the main shaft 1 is plugged into the other end of the connecting rod; the side of the double-headed hinge block has two mutually symmetrical hinge holes near the bottom, and the size of the hinge holes is adapted to the size of the L-shaped shaft rod.

[0007] Preferably, the inner diameter of the concentrating pipe is smaller than the inner diameter of the end pipe, and the end pipes at both ends of the bow-shaped pipe are sealed and fixed with reducer joints; through such an arrangement, the flow rate of water passing through the propeller blades can be increased, thereby increasing the rotation speed of the transmission rod.

[0008] Preferably, a boss slider is slidably connected in the slide groove of the groove-type slide rail, and the double-headed hinge block is fixed to the boss slider by screws, and ball bearings are embedded in the upper and lower surfaces of the boss slider near the four corners; hard bristles are implanted on the side of the folding cleaning rod close to the filter screen. Through such an arrangement, the swing trajectory of the two folding cleaning rods can always act on the fan-shaped water hole, thereby improving the cleaning effect.

[0009] Preferably, a pressure frame is fixed at the edge of the filter screen, and the pressure frame is fixed to the lower surface of the inclined baffle by screws; by setting the pressure frame, not only the tension of the filter screen can be adjusted, but also the installation and maintenance of the device are more convenient.

[0010] Preferably, a sewage pipe is reserved in the middle of the bottom end of the main filter box, and a bottom cover is screwed to the outer wall of the bottom end of the sewage pipe; through the sewage pipe and the bottom cover, some solid particles can be temporarily stored in the bottom cover, and when draining sewage regularly, the bottom cover only needs to be disassembled and cleaned.

[0011] Preferably, a strip-shaped socket for plugging in a strip-shaped pipe is opened at the top of the main filter box, and the bottom end of the strip-shaped pipe is flush with the top inner wall of the main filter box, and the bottom end of the inclined partition is flush with the top inner wall of the main filter box; a sealing strip is clamped in the middle of the top of the L-shaped partition; the barrier effect of the L-shaped partition and the inclined partition can be improved.

[0012] Preferably, the anti-backflushing mechanism includes arc-shaped baffles fixed on the inner walls of the front and rear sides of the main filter box at equal distances, all the arc-shaped longitudinal sections are "W"-shaped, and the bottom ends of two adjacent arc-shaped baffles are fixed with blocking strips with crossed bristles.

[0013] Preferably, a single blocking strip is tangent to the arc surface at the edge of the arc baffle, and the front view of two adjacent blocking strips is V-shaped; a one-way check valve can be formed; and an observation window is provided on the front of the main filter box.

[0014] Preferably, a spring stop is fixed in the middle of the vertical inner wall of the main filter box away from the opening, and an arc-shaped water-drawing plate is hingedly connected to the top inner wall of the main filter box near the spring stop, and a reset spring is fixed between the back side of the arc-shaped water-drawing plate and the spring stop, and the arc-shaped water-drawing plate does not affect the water outlet of the strip pipe under normal circumstances; a fixed pulley frame is fixed to the lower surface of the L-shaped partition, and a fixed pulley is provided in the fixed pulley frame, and a pull rope is fixed to the middle part of the bottom end of the L-shaped partition, and the pull rope passes around the top of the fixed pulley and downward and passes through the arc-shaped baffle to fix a counterweight ball; through the setting of the arc-shaped water-drawing plate and the setting of the pull rope, the pull rope can be pulled downward when discharging sewage. At this time, the arc-shaped water-drawing plate will intercept the downward water flow to the surface facing the filter screen. At this time, the surface of the filter screen generates a strong oblique impact force, which effectively washes away the stains.

[0015] The beneficial effects of the present invention are:

[0016] 1. By setting the inclined baffle in conjunction with the filter screen that is tightly attached to its lower surface, the water to be filtered can pass through the filter screen from bottom to top during use. Under the action of gravity, some impurities are prevented from being blocked on the filter screen. In addition, the anti-backwash mechanism can intercept the blocked particles at the bottom of the main filter box, and can also prevent the disturbance of water flow from causing continuous impact of debris on the filter screen.

[0017] 2. Through the cleaning mechanism, when liquid passes through the bow-shaped pipe during use, the transmission rod can be driven to rotate, and then the two folded cleaning rods are driven by the small wheel and the connecting rod to brush the surface of the two fan-shaped water holes in the state of flapping wings, thereby cleaning the filter screen.

[0018] 3. By setting up the arc baffle and blocking strips, the large particles of impurities can be washed away by the blocking strips under the action of gravity or water flow, and then fall under the arc baffle. They will then be blocked by the cross blocking strips and cannot move upward, thereby reducing the continuous impact on the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a water supply pipeline filtering device proposed by the present invention;

[0020] Figure 2 This is a side view of a water supply pipeline filtering device proposed by the present invention;

[0021] Figure 3 A water supply pipeline filtering device proposed by the present invention Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0022] Figure 4 A water supply pipeline filtering device proposed by the present invention Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 5 This is an exploded view of a cleaning mechanism for a water supply pipeline filter device proposed by the present invention;

[0024] Figure 6 This is an assembly diagram of a double-headed hinged block and a folding cleaning rod in a water supply pipeline filtering device proposed by the present invention;

[0025] Figure 7 This is a schematic diagram of a half-cutaway three-dimensional structure of a water supply pipeline filtering device proposed by the present invention when performing sewage flushing;

[0026] Figure 8 This is a three-dimensional diagram of a double-headed hinged block in a water supply pipeline filtering device proposed by the present invention.

[0027] In the figure: 1. Filter main box; 101. Observation window 1; 102. Drain pipe; 103. Strip jack; 2. Reducer; 3. Bow pipe; 4. Strip pipe; 5. Sealing side cover; 6. Bottom cover; 7. Blocking strip; 8. Arc baffle; 9. Focusing pipe; 10. Propeller blade; 11. Oblique partition; 12. L-shaped partition; 13. Connecting rod; 14. Folding cleaning rod; 15. Filter screen; 151. Pressing frame; 16. Grooved slide rail; 17. Oblique baffle; 171. Fan-shaped water hole; 18. Counterweight ball; 19. Pull rope; 20. Reset spring; 21. Spring stop; 22. Arc-shaped water-catching plate; 23. Transmission rod; 24. Double-headed hinge block; 241. Arc-shaped notch; 242. Hinge hole; 25. Boss slider; 26. L-shaped shaft. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In this embodiment, refer to Figures 1-8A water supply pipeline filtering device includes an arched pipe 3, which includes a middle pipe, two mutually symmetrical oblique pipes and two mutually symmetrical end pipes. The diameter and wall thickness of the middle pipe, the oblique pipe and the end pipe are the same, and the arched pipe 3 is arched upward as a whole. A vertical strip pipe 4 is passed through the outer wall of the middle pipe near the bottom, and the cross section of the strip pipe 4 is a strip hole structure. The length direction of the strip hole is parallel to the axis of the middle pipe. The bottom end of the strip pipe 4 The filter main box 1 is connected. The filter main box 1 is a rectangular box-shaped structure with an internal cavity opening toward the water outlet side. The middle of the middle tube and the strip-shaped pipe 4 are sealed and connected with the same inclined partition 11. The same L-shaped partition 12 is fixed near the top between the front and rear inner walls of the filter main box 1. The top of the L-shaped partition 12 is sealed and connected to the bottom of the inclined partition 11. The bottom of the L-shaped partition 12 is fixed with an inclined baffle 17 extending obliquely toward the opening of the filter main box 1, and the surface of the inclined baffle 17 is fixed. Two symmetrical fan-shaped water holes 171 are provided near the middle of the surface. The lower surface of the inclined baffle 17 is located at the two fan-shaped water holes 171. A filter screen 15 is provided, which is closely attached to the fan-shaped water holes 171, and a cleaning mechanism is provided on the upper surface of the inclined baffle 17. The interior of the main filter box 1 is provided with an anti-backwash mechanism located obliquely below the filter screen 15 to prevent large particles of debris from mixing with the water flow to impact the filter screen 15. A sealing side cover 5 is fixed to the opening of the main filter box 1. The inclined baffle 17 is provided in conjunction with the filter screen 15 closely attached to its lower surface. When in use, the water to be filtered can pass through the filter screen 15 from bottom to top, and some impurities are prevented from being blocked on the filter screen 15 under the action of gravity. The anti-backwash mechanism can intercept the blocked particles at the bottom of the main filter box 1, and can also prevent the disturbance of the water flow from causing the debris to continuously impact the filter screen 15. The cleaning mechanism can also intermittently clean the filter screen 15 from the other side to push out some small particles that are blocking.

[0030] Reference Figure 3-Figure 5The cleaning mechanism includes a collecting pipe 9 embedded in the inside of the inclined pipe near one end of the water inlet, and a sealed bearing is embedded in the middle of the inclined partition 11 near the top, and a transmission rod 23 is rotatably connected in the sealed bearing, and a propeller blade 10 is fixed to the end of the transmission rod 23 close to the collecting pipe 9, and a small runner is fixed to the end of the transmission rod 23 away from the collecting pipe 9, and the surface of the small runner is rotatably connected to the connecting rod 13 extending into the upper surface of the inclined baffle 17 near the circumferential edge; the upper surface of the inclined baffle 17 is fixed with a grooved slide rail 16 between the two fan-shaped water holes 171, and L-shaped shafts 26 symmetrical to each other are respectively provided on both sides of the grooved slide rail 16, and the tops of the two L-shaped shafts 26 are respectively rotatably connected with symmetrical folding cleaning rods 14, and the two folding The adjacent ends of the cleaning rods 14 are hinged with the same double-headed hinge block 24; the top of the double-headed hinge block 24 has an open arc-shaped notch 241, and the bottom of the groove of the arc-shaped notch 241 is plugged with a main shaft 1, and the other end of the main shaft 1 is plugged into the other end of the connecting rod 13; the side of the double-headed hinge block 24 has two symmetrical hinge holes 242 near the bottom, and the size of the hinge hole 242 is adapted to the size of the L-shaped shaft 26; through the provided cleaning mechanism, when in use, when liquid passes through the bow-shaped pipe 3, the transmission rod 23 can be driven to rotate, and then the two folded cleaning rods 14 are driven by the action of the small wheel and the connecting rod 13 to brush the surface of the two fan-shaped water holes 171 in a flapping state, thereby cleaning the filter screen 15.

[0031] Reference Figure 3 The inner diameter of the flow-collecting pipe 9 is smaller than the inner diameter of the end pipe, and the end pipes at both ends of the bow-shaped pipe 3 are sealed and fixed with a reducer 2; through such an arrangement, the flow velocity of the water when passing through the propeller blades 10 can be increased, thereby increasing the rotation speed of the transmission rod 23.

[0032] Reference Figure 5 、 Figure 6 、 Figure 8 A boss slider 25 is slidably connected in the slide groove of the groove-type slide rail 16, and the double-headed hinge block 24 is fixed to the boss slider 25 by screws. Ball bearings are embedded in the upper and lower surfaces of the boss slider 25 near the four corners; hard bristles are implanted on the side of the folding cleaning rod 14 close to the filter screen 15. Through such an arrangement, the swing trajectory of the two folding cleaning rods 14 can always act on the fan-shaped water hole 171, thereby improving the cleaning effect.

[0033] Reference Figure 4 and Figure 6 A pressure frame 151 is fixed at the edge of the filter 15, and the pressure frame 151 is fixed to the lower surface of the inclined baffle 17 by screws; by setting the pressure frame 151, not only the tightness of the filter 15 can be adjusted, but also the installation and maintenance of the device is more convenient.

[0034] Reference Figure 2-Figure 3 A sewage pipe 102 is reserved in the middle of the bottom end of the filter main box 1, and the bottom end circumferential outer wall of the sewage pipe 102 is screwed with a bottom cover 6; through the arrangement of the sewage pipe 102 and the bottom cover 6, some solid particles can be temporarily stored in the bottom cover 6, and when draining sewage regularly, the bottom cover 6 only needs to be disassembled and cleaned.

[0035] Reference Figure 3 The top of the main filter box 1 is provided with a strip-shaped socket 103 for plugging in the strip-shaped pipe 4, and the bottom end of the strip-shaped pipe 4 is flush with the top inner wall of the main filter box 1, and the bottom end of the inclined partition 11 is flush with the top inner wall of the main filter box 1; a sealing strip is clamped in the middle of the top of the L-shaped partition 12; the barrier effect of the L-shaped partition 12 and the inclined partition 11 can be improved.

[0036] Reference Figure 1 and Figure 3 The anti-backwash mechanism includes arc-shaped baffles 8 fixed on the inner walls of the front and rear sides of the main filter box 1 at equal distances. The longitudinal sections of all the arc-shaped baffles 8 are "W"-shaped, and the bottom ends of two adjacent arc-shaped baffles 8 are fixed with blocking strips 7 with cross-bristles. Through the arrangement of the arc-shaped baffles 8 and blocking strips 7, the blocked large particles of impurities can be flushed away by the blocking strips 7 under the action of gravity or water flow, and then fall to the bottom of the arc-shaped baffles 8. After that, they will be blocked by the crossed blocking strips 7 and cannot move upward, thereby reducing the continuous impact on the filter screen 15.

[0037] Reference Figure 1 and Figure 3 A single blocking strip 7 is tangent to the arc surface at the edge of the arc baffle 8, and the front view of two adjacent blocking strips 7 is a V-shaped structure; a one-way non-return effect can be formed; an observation window 101 is provided on the front of the filter main box 1.

[0038] Reference Figure 3 and Figure 7 The water-collecting plate 22 is fixed to the bottom of the filter housing 1 at the bottom, and the water-collecting plate 22 is fixed to the bottom of the filter housing 1 at the bottom.

[0039] Working principle: When using this device, check to ensure that the bottom cover 6 and the sealing side cover 5 are sealed; then connect the reducer joints 2 at both ends of the device to the water pipe. At this time, the water flows in from the end close to the flow-collecting pipe 9, encounters the obstruction of the inclined partition 11, and flows down smoothly, enters the main filter box 1 through the strip pipe 4, and then passes through the filter screen 15 and the fan-shaped water hole 171 and then goes up through the strip pipe 4 on the other side of the inclined partition 11, and finally flows out from the reducer joint 2 at the other end; when liquid passes through the bow pipe 3, the transmission rod 23 is driven to rotate under the action of the propeller blade 10, and then the small runner and the connecting rod 13 are rotated. Under the action, the two folded cleaning rods 14 are driven to brush the surface of the two fan-shaped water holes 171 in the state of flapping wings, thereby cleaning the filter screen 15; through the provided arc baffle 8 and blocking strips 7, the blocked large particles of impurities are allowed to break through the blocking strips 7 under the action of gravity or water flow, and then fall under the arc baffle 8, and then they will be blocked by the crossed blocking strips 7 and cannot move upward, thereby reducing the continuous impact on the filter screen 15; through the provided sewage pipe 102 and bottom cover 6, some solid particles are temporarily stored in the bottom cover 6, and when draining sewage regularly, you only need to disassemble the bottom cover 6 for cleaning.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A water supply pipeline filtering device, comprising an arched pipe (3), wherein the arched pipe (3) comprises a middle pipe, two mutually symmetrical inclined pipes, and two mutually symmetrical end pipes, characterized in that: The diameter and wall thickness of the intermediate tube, the oblique tube and the end tube are all the same, and the overall arched tube (3) is arched upward, and a vertical strip tube (4) is passed through the circumferential outer wall of the intermediate tube near the bottom, and the cross section of the strip tube (4) is a strip hole structure, and the length direction of the strip hole is parallel to the axis of the intermediate tube, and the bottom end of the strip tube (4) is connected to the main filter box (1), and the main filter box (1) is a rectangular box structure, and the middle of the intermediate tube and the strip tube (4) is sealed and connected with the same oblique partition (11), and the same L-shaped partition (12) is fixed near the top between the front and rear inner walls of the main filter box (1), and the top of the L-shaped partition (12) is aligned with the oblique partition (11). The bottom ends of the L-shaped partition (12) are sealed and docked, and an inclined baffle (17) is fixed at the bottom end of the L-shaped partition (12) and extends obliquely toward the opening of the main filter box (1), and two mutually symmetrical fan-shaped water holes (171) are opened near the middle of the surface of the inclined baffle (17), and a filter screen (15) is provided on the lower surface of the inclined baffle (17) at the two fan-shaped water holes (171) and is closely attached to the fan-shaped water holes (171), and a cleaning mechanism is provided on the upper surface of the inclined baffle (17); an anti-backwash mechanism is provided inside the main filter box (1) at an angle below the filter screen (15) to prevent large particles of debris from mixing with water to impact the filter screen (15), and a sealing side cover (5) is fixed at the opening of the main filter box (1); The anti-backlash mechanism comprises arc-shaped baffles (8) fixed to the inner walls of the front and rear sides of the main filter box (1) at equal distances, the longitudinal sections of all the arc-shaped baffles (8) being arranged in a "W" shape, and the bottom ends of two adjacent arc-shaped baffles (8) are fixed with blocking strips (7) with cross-brush bristles; A single blocking wool strip (7) is tangent to the arc surface at the edge of the arc-shaped baffle (8), and the front view of two adjacent blocking wool strips (7) presents a V-shaped structure.

2. A water supply pipeline filtering device according to claim 1, characterized in that: The cleaning mechanism includes a collecting pipe (9) embedded in the interior of the inclined pipe near one end of the water inlet, and a sealed bearing is embedded in the middle of the inclined partition (11) near the top, and a transmission rod (23) is rotatably connected in the sealed bearing, a propeller blade (10) is fixed to the end of the transmission rod (23) near the collecting pipe (9), and a small wheel is fixed to the end of the transmission rod (23) away from the collecting pipe (9), and a connecting rod (13) extending into the upper surface of the inclined baffle (17) is rotatably connected to the surface of the small wheel near the circumferential edge; a grooved slide rail (16) is fixed to the upper surface of the inclined baffle (17) between the two fan-shaped water holes (171), and the two ends of the grooved slide rail (16) are fixed to the upper surface of the inclined baffle (17). The sides are respectively provided with mutually symmetrical L-shaped shaft rods (26), the top ends of the two L-shaped shaft rods (26) are respectively rotatably connected to mutually symmetrical folding cleaning rods (14), and the ends of the two folding cleaning rods (14) close to each other are hinged to the same double-headed hinge block (24); the top end of the double-headed hinge block (24) is opened with an arc-shaped notch (241), and the bottom of the groove of the arc-shaped notch (241) is plugged with a main shaft 1, and the other end of the main shaft 1 is plugged into the other end of the connecting rod (13); the side of the double-headed hinge block (24) is opened near the bottom end with two mutually symmetrical hinge holes (242), and the size of the hinge hole (242) is adapted to the size of the L-shaped shaft rod (26).

3. A water supply pipeline filtering device according to claim 2, characterized in that: The inner diameter of the concentrating pipe (9) is smaller than the inner diameter of the end pipe, and the end pipes at both ends of the bow-shaped pipe (3) are sealed and fixed with reducing pipe joints (2).

4. A water supply pipeline filtering device according to claim 2, characterized in that: A boss slider (25) is slidably connected in the slide groove of the groove-shaped slide rail (16), and a double-headed hinge block (24) is fixed to the boss slider (25) by screws. Ball bearings are embedded on the upper and lower surfaces of the boss slider (25) near the four corners; hard bristles are implanted on the side of the folding cleaning rod (14) near the filter screen (15).

5. The water supply pipeline filtering device according to claim 1, characterized in that: A pressing frame (151) is fixed at the edge of the filter screen (15), and the pressing frame (151) is fixed to the lower surface of the inclined baffle (17) by screws.

6. The water supply pipeline filtering device according to claim 1, characterized in that: A sewage pipe (102) is reserved in the middle of the bottom end of the main filter box (1), and a bottom cover (6) is screwed to the outer wall of the bottom end of the sewage pipe (102).

7. The water supply pipeline filtering device according to claim 1, characterized in that: The top of the main filter box (1) is provided with a strip-shaped insertion hole (103) for inserting the strip-shaped pipe (4), and the bottom end of the strip-shaped pipe (4) is flush with the top inner wall of the main filter box (1), and the bottom end of the inclined partition (11) is flush with the top inner wall of the main filter box (1); the middle part of the top end of the L-shaped partition (12) is clamped with a sealing strip.

8. The water supply pipeline filtering device according to claim 1, characterized in that: A spring stopper (21) is fixed in the middle of the vertical inner wall of the main filter box (1) away from the opening, and an arc-shaped water-collecting plate (22) is hingedly connected to the top inner wall of the main filter box (1) near the spring stopper (21), and a reset spring (20) is fixed between the back of the arc-shaped water-collecting plate (22) and the spring stopper (21), and the arc-shaped water-collecting plate (22) does not affect the water discharge of the strip-shaped pipe (4) in normal times; a fixed pulley frame is fixed to the lower surface of the L-shaped partition (12), and a fixed pulley is provided in the fixed pulley frame, and a pull rope (19) is fixed to the middle of the bottom end of the L-shaped partition (12), and the pull rope (19) passes around the top end of the fixed pulley and then passes downward through the arc-shaped baffle (8) to be fixed with a counterweight ball (18).

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