A multi-section spliced modular water distributor

Abstract

The application provides a multi-section spliced modular water distributor, relates to the technical field of water treatment water distribution equipment, and solves the technical problems of poor adaptability and inconvenient installation and maintenance of the existing water distributor. The water distributor comprises a plurality of radially uniform water distribution branch pipes, the water distribution branch pipes are sealed and spliced through buckle structures of a first section, an intermediate section and a tail section module, the length can be freely adjusted to adapt to different inner diameters of tank bodies, a blockage cleaning scraper is completely limited in the intermediate section to axially reciprocate, a one-way elastic scraping ring is arranged on the outer ring to realize mud scraping without mud return, an elastic column is arranged in the inner part to follow the water distribution hole, a non-interference coil spring reset mechanism is arranged in the first section, and a mechanical trigger sealing automatic blowdown mechanism is arranged in the tail section. The application realizes free length adjustment of the water distribution branch pipe, automatic blockage cleaning and blowdown, stable and reliable operation, convenient installation and maintenance, greatly improves the universality of the equipment, and reduces the non-standard customization cost and operation and maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of water treatment distribution equipment technology, and in particular to a multi-section modular water distributor. Background Technology

[0002] In fields such as water treatment or chemical reactions, water distributors are widely used in tank or pool equipment to achieve uniform fluid distribution. The water distribution effect directly determines the reaction efficiency and the final effect of water treatment.

[0003] Currently, existing water distributors generally suffer from the following intractable technical defects: 1. Most existing water distributors are one-piece fixed structures with non-adjustable water distribution branch pipe lengths. For tanks of different inner diameters and pool sizes, dedicated water distributors must be designed, molded, and manufactured separately, resulting in a high proportion of non-standard customization. This leads to long design cycles, high mold costs, and an inability to adapt a single device to multiple operating conditions. 2. The water distribution holes of existing water distributors are prone to clogging by sludge, suspended solids, and impurities during long-term operation, causing uneven water distribution, short flow, and dead zones. Conventional cleaning structures often use rigid scraper designs, which are prone to jamming and scratching the pipe walls during operation. Furthermore, during the cleaning process, sediment can be radially pushed into the water distribution holes, exacerbating the clogging and resulting in poor cleaning effectiveness or even adverse effects. Therefore, a multi-section, modular water distributor is urgently needed to address the pain points of existing technologies. Summary of the Invention

[0004] This invention proposes a multi-section modular water distributor, which solves the problems of the inability to adjust the length of the water distribution branch pipe and its easy clogging in the prior art.

[0005] The technical solution of this invention is implemented as follows: A multi-section modular water distributor includes a main body with several water distribution branch pipes evenly distributed along its circumference. The branch pipes are characterized by being formed by sequentially sealing and splicing a first section module, a middle section module, and a last section module using a snap-fit ​​structure. Each branch pipe contains a cleaning scraper. The first section module contains a front limiting block, and the last section module contains a rear limiting block. The front limiting block is located at the splicing end between the first and middle section modules, and the rear limiting block is located at the splicing end between the last and middle section modules. The limiting block completely restricts the axial movement of the cleaning scraper within the internal cavity of the intermediate section module. The intermediate section module has water distribution holes on its pipe wall. The outer ring of the cleaning scraper has an elastic sludge scraping structure. When the cleaning scraper moves towards the tail section module, the elastic sludge scraping structure moves the sediment towards the tail section module. The tail section module has a sewage discharge mechanism mechanically triggered by the cleaning scraper. The first section module has a coil spring reset mechanism connected to the cleaning scraper. The cleaning scraper has a cleaning hole structure inside for unblocking the water distribution holes.

[0006] Furthermore, the buckle structure includes a male connector and a female connector. One end of the first section module is a water inlet connection end, and the other end is a female connector. One end of the middle section module is a male connector, and the other end is a female connector. One end of the tail section module is a male connector, and the other end is a closed end. The outer wall of the male connector is provided with an L-shaped rotating locking groove, and the end of the male connector is provided with a sealing ring groove. The inner wall of the female connector is provided with a locking protrusion that matches the L-shaped rotating locking groove.

[0007] Furthermore, at least two symmetrically distributed straight guide grooves are provided on the inner wall of the intermediate section module along the axial direction, and the outer edge of the elastic scraper structure is integrally formed with guide wings that match the straight guide grooves, and the guide wings are embedded in the straight guide grooves.

[0008] Furthermore, the elastic sludge scraping structure is a hollow frustum-shaped elastic scraper ring. The small end of the elastic scraper ring is fixedly connected to the outer ring of the unblocking scraper, and there is a radial gap between the side wall of the small end of the elastic scraper ring and the inner wall of the middle section module. The large end of the elastic scraper ring faces the tail section module, and the side wall of the large end of the elastic scraper ring abuts against the inner wall of the middle section module. The unblocking scraper has a main water passage hole at its center, and several secondary water passage holes are evenly distributed around the main water passage hole.

[0009] Furthermore, the coil spring reset mechanism includes a guide core rod fixed inside the center of the first section module, with a coil spring wound around the guide core rod. One end of the coil spring is fixed to the end of the guide core rod, and the other end passes through the clearance hole and is fixedly connected to the end face of the unblocking scraper.

[0010] Furthermore, the inner end of the water distribution hole is provided with a funnel-shaped guide chamfer, and the large end of the elastic scraper ring is integrally formed with an annular scraper lip. The cross-section of the scraper lip is a right-angled triangle, and the apex of the scraper lip away from the elastic scraper ring abuts against the inner wall of the middle section module. The funnel-shaped guide chamfer on the inner side of the water distribution hole can reduce mud adhesion, making it easier for impurities to be carried away by the water flow, and significantly reducing the probability of clogging.

[0011] Furthermore, the elastic scraper ring has several blind holes evenly distributed radially, and each blind hole corresponds to a water distribution hole. A compression spring and an elastic column are installed sequentially inside the blind hole. One end of the elastic column abuts against the compression spring, and the other end protrudes from the outer wall of the elastic scraper ring.

[0012] Furthermore, the sewage discharge mechanism includes a sewage discharge port opened on the tail section module. A sliding chamber is fixedly connected to the inner side of the sewage discharge port. A sealing plate that can slide axially is provided in the sliding chamber. A top rod is fixed to the side of the sealing plate facing the middle section module. The end of the sealing plate away from the middle section module abuts against the end of the sliding chamber through a return spring. The return spring can push the sealing plate to close the sewage discharge port.

[0013] Furthermore, a filter bag is connected to the outlet end of the sewage outlet.

[0014] The beneficial effects of this technical solution are: The water distribution branch pipe of this invention adopts a three-section snap-fit ​​splicing structure consisting of a first section module, a middle section module, and a tail section module. The overall length of the water distribution branch pipe can be freely adjusted by increasing or decreasing the number of middle section modules. This allows for precise adjustment of the water distribution range according to the actual inner diameter of the tank or pool, enabling a single set of equipment to adapt to tanks and pools of different specifications. This significantly reduces the proportion of non-standard customization, greatly shortens the design and production cycle, and lowers equipment manufacturing costs. By precisely adjusting the length of the water distribution branch pipe, the water distribution holes can evenly cover the entire cross-section inside the tank, completely avoiding water distribution dead zones, short flows, and flow deviations, ensuring uniform mixing and sufficient reaction of the fluid inside the tank. The system utilizes a cleaning scraper in the middle section of the water distribution branch pipe to achieve fully hydraulic automatic cleaning, eliminating the need for manual shutdown and significantly reducing maintenance intensity. The elastic scraper ring features a one-way elastic design; as the cleaning scraper moves towards the tail section, it scrapes and pushes away sediment along the pipe wall, and automatically retracts and detaches from the pipe wall upon resetting, achieving mud-free return and completely avoiding secondary pollution caused by sediment backflow. The sewage discharge mechanism of the tail section module is mechanically triggered by the cleaning scraper, using the water pressure inside the pipe to forcefully discharge the sediment accumulated in the tail section, achieving rapid cleaning of sediment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the water distributor of the present invention; Figure 2 This is a three-dimensional sectional view of the water distribution branch pipe. Figure 3 for Figure 3 Enlarged view of part 2 in the middle; Figure 4 This is a three-dimensional sectional view of the middle section module. Figure 5 An exploded diagram of a cleaning scraper and a one-way elastic scraper ring; Figure 6 A three-dimensional cross-sectional view of the unclogging scraper and the one-way elastic scraper ring; Figure 7 This is a three-dimensional sectional view of the tail section module.

[0017] The components include: 1. Water distributor body; 2. Water distribution branch pipe; 3. First section module; 4. Middle section module; 5. Tail section module; 6. Cleaning scraper; 7. Front limit block; 8. Rear limit block; 9. Water distribution hole; 10. Snap-fit ​​structure; 11. Male connector; 12. Female connector; 13. L-shaped rotating locking groove; 14. Sealing ring groove; 15. Locking protrusion key; 16. Straight guide groove; 17. Guide wing; 18. One-way elastic scraper ring; 19. Main water passage hole; 20. Secondary water passage hole; 21. Guide core rod; 22. Coil spring; 23. Guide chamfer; 24. Sludge scraper lip; 25. Blind hole; 26. Compression spring; 27. Elastic column; 28. Drain outlet; 29. ​​Sliding chamber; 30. Sealing plate; 31. Top rod; 32. Reset spring; 33. Filter bag. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this embodiment, it should be understood that the terms "center and longitudinal and lateral and up and down and front and back and left and right and vertical and horizontal and top and bottom and inside and outside" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the invention 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 limiting the invention.

[0020] like Figure 1-7As shown, this embodiment of the invention provides a multi-section modular water distributor, including a water distributor body 1. Six water distribution branch pipes 2 are radially and evenly distributed along the circumference of the water distributor body 1. Each water distribution branch pipe 2 is formed by sequentially sealing and splicing a first section module 3, a middle section module 4, and a last section module 5 through a snap-fit ​​structure 10. A cleaning scraper 6 is provided inside the water distribution branch pipe 2. A front limiting block 7 is provided inside the first section module 3, and a rear limiting block 8 is provided inside the last section module 5. The front limiting block 7 is located at the splicing end between the first section module 3 and the middle section module 4, and the rear limiting block 8 is located at the splicing end between the last section module 5 and the middle section module 4. The axial movement of the cleaning scraper 6 is completely confined within the internal cavity of the intermediate section module 4, so that the cleaning scraper 6 can only perform axial linear reciprocating motion within the intermediate section module 4. Multiple sets of water distribution holes 9 are evenly opened along the axial direction on the pipe wall of the intermediate section module 4. An elastic sludge scraping structure is provided on the outer ring of the cleaning scraper 6. When the cleaning scraper 6 moves towards the tail section module 5, it pushes the sediment to move towards the tail section module 5 together. The tail section module 5 is equipped with a sewage discharge mechanism mechanically triggered by the cleaning scraper 6. The first section module 3 is equipped with a coil spring reset mechanism connected to the cleaning scraper 6. The cleaning scraper 6 is equipped with a cleaning hole structure for unblocking the water distribution holes 9.

[0021] In use, according to the actual inner diameter of the tank, select the corresponding number of intermediate section modules 4 to splice into water distribution branch pipes 2 of suitable length. The water distribution branch pipes 2 are radially and evenly installed on the main body 1 of the water distributor, and the whole is placed inside the tank. The water distribution branch pipes 2 are installed in sequence with the first section module 3, the intermediate section module 4 and the tail section module 5. Water flows into the water distribution branch pipes 2 from the first section module 3. Under the action of water pressure, the cleaning scraper 6 is pushed to move smoothly from the first section to the tail section. During the movement, the cleaning scraper 6 scrapes off the sludge and impurities attached to the pipe wall through the elastic scraper ring 18 and the mud scraper lip 24 of the outer ring, and then transports the sediment forward in an orderly manner. Most of the sediment is carried out of the pipe by the water flow from the water distribution hole 9 during the transportation process. When the cleaning scraper 6 is pushed by the water flow to the rear limit block 8 at the end of the tail section, the cleaning scraper 6 pushes the top rod 31 to open the drain port 28, collecting and discharging the residual sediment that cannot be discharged through the water distribution hole 9. After the water distribution and cleaning operation is completed and the machine stops, the coil spring reset mechanism retracts and rebounds, pulling the cleaning scraper 6 to automatically reset to the first section module 3. During the reset process, the elastic scraper ring 18 retracts and detaches from the pipe wall, preventing the sediment from being carried back and avoiding secondary pollution and blockage. By using multi-section snap-fit ​​modular splicing, the length of the water distribution branch pipe can be freely combined, and the length of the water distribution rod can be adjusted according to the actual radius of the tank, so that the water distribution point evenly covers the entire cross-section inside the tank, ensuring that there are no dead corners or deflection in the water distribution inside the tank, and it can adapt to the inner diameter of different tanks or pools, reducing the cost of non-standard customization and greatly improving the equipment's versatility and adaptability. The cleaning scraper in the middle section achieves fully automatic cleaning, eliminating the need for manual shutdown for cleaning and reducing the intensity of operation and maintenance. The modular water distribution branch pipe structure facilitates transportation, storage, and component replacement, thus improving overall economic efficiency.

[0022] like Figure 3 , 4 As shown, the first segment module 3 has a water inlet connection at one end and a female connector 12 at the other end. The middle segment module 4 has a male connector 11 at one end and a female connector 12 at the other end, allowing for continuous splicing of multiple sections. The tail segment module 5 has a male connector 11 at one end and a closed end at the other. The outer wall of the male connector 11 has two sets of symmetrically distributed L-shaped rotating locking grooves 13, and the end of the male connector has a sealing ring groove 14. The sealing ring groove 14 is filled with an O-ring fluororubber sealing ring. The inner wall of the female connector 12 has a locking protrusion 15 that matches the L-shaped rotating locking groove 13. In this embodiment, the water inlet connection uses a flange interface, which can be replaced with a threaded interface as needed for connecting to the main water inlet pipe.

[0023] During assembly, select the corresponding number of intermediate section modules 4 according to the actual inner diameter of the tank and the required water distribution length. Align the male connector 11 with the female connector 12 and insert it axially. Rotate 45° to engage the locking key 15 with the locking end of the L-shaped rotating locking groove 13, achieving axial positioning and circumferential locking. Simultaneously, the O-ring seal in the sealing groove 14 is compressed to form an axial seal, ensuring no leakage at the joint. Disassembly is achieved by rotating 45° in the opposite direction, allowing for quick assembly and disassembly. The assembly method is simple and quick, eliminating the need for bolts, welding, or other complex connections. Installation and maintenance efficiency are high. The L-shaped rotating locking mechanism, combined with the sealing structure, provides high connection strength, reliable sealing, and prevents loosening and leakage.

[0024] like Figure 3 , 5 As shown, the inner wall of the middle section module 4 is provided with two symmetrically distributed linear guide grooves 16 along the axial direction. The two ends of the linear guide grooves 16 can be rounded to avoid impurities getting stuck. The outer edge of the elastic sludge scraping structure is integrally formed with guide wings 17 that match the linear guide grooves 16. The guide wings 17 are embedded in the linear guide grooves 16. During water distribution, the water flow pushes the cleaning scraper 6 to move. The guide wings 17 on the outer edge of the elastic sludge scraping structure slide axially along the linear guide grooves 16. The linear guide grooves 16 constrain the guide wings 17. The elastic sludge scraping structure restricts the rotation of the cleaning scraper 6 around the axis and limits radial sway and offset, so that the cleaning scraper 6 always moves stably along a straight line, avoiding tilting, jamming, or scraping the pipe wall. The mechanical guide structure ensures the movement accuracy of the cleaning scraper 6, ensuring smooth and reliable operation without flipping or jamming, reducing abnormal wear between the cleaning scraper 6 and the pipe wall, and extending its service life. The symmetrically distributed linear guide grooves 16 can bear force symmetrically, resulting in low movement resistance, reducing the water flow driving load, and improving the stability of the cleaning action.

[0025] like Figure 3 , 6As shown in Figure 7, the unblocking scraper 6 is a rigid disc structure. The outer ring of the unblocking scraper 6 is provided with an annular groove. The small end of the elastic scraper ring 18 is interference-fitted into the annular groove. The two ends of the groove are provided with limiting bosses to restrict the axial movement of the elastic scraper ring 18, thereby preventing the elastic scraper ring 18 from falling off during reciprocating motion. The elastic scraper ring 18 is a hollow frustum structure, made of wear-resistant and aging-resistant nitrile rubber. The small end of the elastic scraper ring 18 is fixedly connected to the unblocking scraper 6, and there is a 2mm radial gap between the side wall of the small end of the elastic scraper ring 18 and the inner wall of the middle section module 4. This gap is used for the elastic scraper ring 18 to retract inward and detach from the pipe wall when the unblocking scraper 6 is reset. The large end of the elastic scraper ring 18 faces the tail section module 5, and the side wall of the large end of the elastic scraper ring 18 abuts against the inner wall of the middle section module 4. A main water passage hole 19 is provided at the center of the unblocking scraper 6, and six secondary water passage holes 20 are evenly distributed around the circumference of the main water passage hole 19. The unblocking scraper 6 can be made of stainless steel.

[0026] When the water flow propels the cleaning scraper 6 towards the tail section module 5, the elastic scraper ring 18 opens outward under the pressure of the water flow and the friction of the pipe wall, tightly adhering to the pipe wall and scraping up and pushing sludge, impurities, and other sediments forward. When the cleaning scraper 6 returns to the head section module 3, the force direction of the elastic scraper ring 18 changes, automatically contracting inward and disengaging from the pipe wall, no longer contacting the sediments. This reduces the amount of sediment carried back to the head section module 3 during the return stroke, achieving thorough cleaning without secondary pollution. The water flow can smoothly pass through the cleaning scraper 6 through the main water passage 19 and the circumferentially arranged secondary water passage 20, ensuring sufficient water area and stable water flow, making the movement of the cleaning scraper 6 more stable. This prevents violent collisions caused by excessive water pressure pushing the cleaning scraper 6 against the tail section module 5. The elastic scraper ring 18 has good wall adhesion and can adapt to a certain range of dimensional deviations, resulting in a better cleaning effect than traditional rigid scrapers.

[0027] like Figure 3 , 4 As shown, a guide rod 21 is fixed at the center of the first module 3. A limiting ring can be set at the end of the guide rod 21 to limit the maximum tensile length of the coil spring 22 and prevent excessive stretching failure. The coil spring 22 is wound on the guide rod 21. The front limiting block 7 does not interfere with the extension and retraction of the coil spring 22, and at the same time prevents the cleaning scraper 6 from entering the first module 3. One end of the coil spring 22 is fixed to the end of the guide rod 21, and the other end passes through the clearance hole and is fixedly connected to the front end face of the cleaning scraper 6. The limiting ring is an existing technology for limiting the tensile length of the coil spring 22.

[0028] When the water distributor is running, the water flow pushes the cleaning scraper 6 towards the tail section module 5. The coil spring 22 is gradually stretched, storing elastic potential energy. When the machine stops and the water flow is stopped, the water pressure disappears, and the coil spring 22 contracts and rebounds under the action of elasticity, pulling the cleaning scraper 6 smoothly from the tail section module 5 to the head section module 3, so that the cleaning scraper 6 automatically returns to its initial position, preparing for the next operation. It adopts a purely mechanical reset structure, which does not require power supply, sensors or controllers. It has a simple structure, extremely low failure rate, and reliable operation. The reset force is uniform and stable, which can ensure that the cleaning scraper 6 returns to its position accurately every time, avoiding failure due to jamming. The coil spring reset mechanism occupies little space, has sufficient elasticity, and has a long service life, making it suitable for water treatment environments with long-term continuous operation.

[0029] like Figure 3 , 5 As shown, a bell-shaped guide chamfer 23 is provided at the inner end of the water distribution hole 9. The angle of the guide chamfer 23 can be 45°. By setting the guide chamfer 23, the adhesion of sediment at the water distribution hole 9 can be reduced, making it easier for impurities to be carried out by the water flow. The large end of the elastic scraper ring 18 is integrally formed with an annular scraper lip 24. The cross-section of the scraper lip 24 is a right-angled triangle. The apex of the scraper lip 24, away from the elastic scraper ring 18, abuts against the inner wall of the middle section module 4. When the cleaning scraper 6 moves forward, the oblique scraper lip 24 contacts the sediment on the pipe wall. Since the scraper lip 24 is a right-angled triangle structure, it is arranged with the large end of the elastic scraper ring 18 facing the tail section module 5, and only generates an axial pushing force along the pipe wall to push the sediment forward. It does not generate radial extrusion force, avoiding the blockage caused by pressing impurities into the water distribution hole 9. This avoids the problem of pressure blockage from the root and protects the water distribution hole 9 from blockage. At the same time, the rubber elastic scraper ring 18 can also reduce scratches on the inner wall of the middle section module 4.

[0030] like Figure 6 , 7 As shown, the elastic scraper ring 18 has several blind holes 25 evenly distributed radially. The blind holes 25 can correspond one-to-one with the water distribution holes 9. A compression spring 26 and an elastic column 27 are installed in sequence in the blind holes 25. One end of the elastic column 27 abuts against the compression spring 26, and the other end passes through the through hole and protrudes halfway out of the outer wall of the scraper ring. Under normal conditions, the elastic column 27 is in contact with the inner wall of the middle section module 4.

[0031] During the movement of the cleaning scraper 6, the elastic column 27 moves synchronously with the cleaning scraper 6, passing through each water distribution hole 9. When the elastic column 27 reaches the water distribution hole 9, it slightly protrudes under the thrust of the compression spring 26, providing flexible pressure to the inside of the water distribution hole 9, thereby loosening and clearing the impurities attached to the hole opening and inside. When the elastic column 27 contacts the pipe wall at a non-hole opening position, it is squeezed and can automatically retract into the blind hole 25, without affecting the sliding of the cleaning scraper 6 or causing jamming. The elastic cleaning structure is a flexible contact, which will not jam or damage the water distribution hole 9. The follow-up cleaning can achieve uninterrupted clearing throughout the process, keeping the water distribution hole 9 unobstructed for a long time. The closed blind hole 25 structure prevents the compression spring 26 and the elastic column 27 from falling off and entering the water flow system, making it safe and reliable. The overall structure is simple, requires no maintenance, and has a stable and long-lasting clearing effect.

[0032] like Figure 3 As shown, the tail section module 5 has a drain outlet 28. A sliding chamber 29 is fixedly connected to the inner side of the drain outlet 28. A sealing plate 30 that can slide axially is provided in the sliding chamber 29. A top rod 31 is fixed to the side of the sealing plate 30 facing the middle section module 4. The end of the sealing plate 30 away from the middle section module 4 is abutted against the end of the sliding chamber 29 by a return spring 32. Under normal conditions, the return spring 32 pushes the sealing plate 30 to fit against the end face of the drain outlet 28, thereby closing the drain outlet 28. A filter bag 33 is provided at the outlet end of the drain outlet 28. The filter bag 33 can be detachably connected to the tail section module 5 via threads. When the cleaning scraper 6 is pushed to the rear limit block 8 at the end of the tail section by the water flow, the rear end face of the cleaning scraper 6 directly pushes the push rod 31, thereby causing the sealing plate 30 to compress the reset spring 32 and move backward, opening the drain port 28. Under the action of water pressure in the pipe, the sediment collected in the tail section is automatically and forcefully discharged from the drain port 28 with the water flow. The discharged sediment can be collected by the filter bag 33 and cleaned regularly, reducing the subsequent water filtration and cleaning costs. When the machine stops, the cleaning scraper 6 returns to the first section module 3, the push rod 31 loses its pushing force, and the sealing plate 30 automatically returns to its position under the action of the reset spring 32, reliably closing the drain port 28.

[0033] With mechanically triggered automatic sewage discharge, the fine sediment that cannot be discharged from the water distribution hole 9 can be completely discharged without electrical control or manual operation. The timing of sewage discharge is linked to the stroke of the cleaning scraper 6, resulting in high sewage discharge efficiency and thorough effect, which greatly improves the overall stability and service life of the water distributor.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-section modular water distributor, comprising a water distributor body (1), wherein a plurality of water distribution branch pipes (2) are evenly distributed in the circumferential direction of the water distributor body (1), characterized in that: The water distribution branch pipe (2) is formed by sequentially sealing and splicing the first section module (3), the middle section module (4), and the last section module (5) through a snap-fit ​​structure (10). The water distribution branch pipe (2) is equipped with a cleaning scraper (6). The first section module (3) is equipped with a front limiting block (7), and the last section module (5) is equipped with a rear limiting block (8). The front limiting block (7) is located at the splicing end of the first section module (3) and the middle section module (4), and the rear limiting block (8) is located at the splicing end of the last section module (5) and the middle section module (4). The front limiting block (7) and the rear limiting block (8) will move the cleaning scraper (6) axially. The process is completely confined within the internal cavity of the intermediate section module (4). The intermediate section module (4) has water distribution holes (9) on its pipe wall. The outer ring of the cleaning scraper (6) is provided with an elastic sludge scraping structure. When the cleaning scraper (6) moves towards the tail section module (5), the elastic sludge scraping structure moves the sediment towards the tail section module (5). The tail section module (5) is provided with a sewage discharge mechanism mechanically triggered by the cleaning scraper (6). The first section module (3) is provided with a coil spring reset mechanism connected to the cleaning scraper (6). The cleaning scraper (6) is provided with a cleaning hole structure for unblocking the water distribution holes (9).

2. The multi-section modular water distributor according to claim 1, characterized in that: The buckle structure (10) includes a male connector (11) and a female connector (12). One end of the first section module (3) is a water inlet connection end and the other end is a female connector (12). One end of the middle section module (4) is a male connector (11) and the other end is a female connector (12). One end of the tail section module (5) is a male connector (11) and the other end is a closed end. The outer wall of the male connector (11) is provided with an L-shaped rotating locking groove (13). The end of the male connector (11) is provided with a sealing ring groove (14). The inner wall of the female connector (12) is provided with a locking protrusion (15) that matches the L-shaped rotating locking groove (13).

3. The multi-section modular water distributor according to claim 1, characterized in that: At least two symmetrically distributed straight guide grooves (16) are provided on the inner wall of the intermediate section module (4) along the axial direction. The outer edge of the elastic scraper structure is integrally formed with a guide wing (17) that matches the straight guide groove (16). The guide wing (17) is embedded in the straight guide groove (16).

4. The multi-section modular water distributor according to claim 1, characterized in that: The elastic sludge scraping structure is a hollow frustum-shaped elastic scraper ring (18). The small end of the elastic scraper ring (18) is fixedly connected to the outer ring of the unblocking scraper (6). A radial gap is provided between the side wall of the small end of the elastic scraper ring (18) and the inner wall of the middle section module (4). The large end of the elastic scraper ring (18) faces the tail section module (5). The side wall of the large end of the elastic scraper ring (18) abuts against the inner wall of the middle section module (4). The center position of the unblocking scraper (6) is provided with a main water passage hole (19). Several secondary water passage holes (20) are evenly distributed around the main water passage hole (19).

5. The multi-section modular water distributor according to claim 1, characterized in that: The coil spring reset mechanism includes a guide core rod (21) fixed inside the center of the first section module (3), and a coil spring (22) is wound on the guide core rod (21). One end of the coil spring (22) is fixed to the end of the guide core rod (21), and the other end passes through the clearance through hole and is fixedly connected to the end face of the cleaning scraper (6).

6. The multi-section modular water distributor according to claim 4, characterized in that: The water distribution hole (9) has a flared guide chamfer (23) at the inner end. The large end of the elastic scraper ring (18) is integrally formed with an annular scraper lip (24). The cross section of the scraper lip (24) is a right triangle. The apex of the scraper lip (24) away from the elastic scraper ring (18) abuts against the inner wall of the middle section module (4).

7. The multi-section modular water distributor according to claim 4, characterized in that: The elastic scraper ring (18) has several blind holes (25) evenly distributed radially. The blind holes (25) correspond one-to-one with the water distribution holes (9). A compression spring (26) and an elastic column (27) are installed in sequence inside the blind holes (25). One end of the elastic column (27) abuts against the compression spring (26), and the other end protrudes out of the outer wall of the elastic scraper ring (18).

8. The multi-section modular water distributor according to claim 1, characterized in that: The sewage discharge mechanism includes a sewage discharge port (28) opened on the tail section module (5). A sliding chamber (29) is fixedly connected to the inner side of the sewage discharge port (28). A sealing plate (30) that can slide axially is provided in the sliding chamber (29). A top rod (31) is fixed on the side of the sealing plate (30) facing the middle section module (4). The end of the sealing plate (30) away from the middle section module (4) abuts against the end of the sliding chamber (29) through a return spring (32). The return spring (32) can push the sealing plate (30) to close the sewage discharge port (28).

9. The multi-section modular water distributor according to claim 8, characterized in that: The outlet end of the sewage outlet (28) is connected to a filter bag (33).

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