Internal circulation anti-overflow device for pulse water distributor

Abstract

The utility model discloses an inner circulation anti -overflow device of pulse water distributor, including water distributor body, the water distributor body one side is established with rectangular groove, installs the anti -overflow pipeline in the rectangular groove, the upper surface of anti -overflow pipeline is equipped with rotatable lever arm, and the bottom of lever arm is connected with counterweight and movable rod, and the bottom of movable rod is connected with articulated lever, and the inside rotatory of anti -overflow pipeline is equipped with the apron, and one surface of apron is fixedly connected with second sealing washer. The utility model possesses the effect that adapts water level change, can avoid appearing the phenomenon of water level overflow, through setting lever arm, apron and counterweight, under normal water level, apron is connected counterweight through lever arm, makes apron sealed close anti -overflow pipeline under normal water level, when water level exceeds overflow port height, and the moment of force of water pressure acting on the inside of apron is greater than counterweight moment, and apron is pushed away, and water is discharged from overflow port, and after water level drops, and counterweight pulls apron reset and closes, play the function of anti -overflow.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, and in particular relates to an internal circulation anti-overflow device for a pulse water distributor. Background Technology

[0002] A pulse water distributor is a device capable of periodic and intermittent water distribution, widely used in wastewater treatment, agricultural irrigation, and other fields. Its siphon principle works by using a rapidly flowing water stream in a siphon tube to remove air from the main pipe, creating a vacuum. Under the influence of atmospheric pressure, water from a container enters the main pipe and is discharged into a pool. Due to the high water flow rate, water distribution can be completed quickly, achieving a pulsed effect. The pressure control principle involves introducing water into a pressure chamber through the inlet. As water continuously enters, the pressure inside the chamber gradually increases. When the pressure reaches a certain set value, the control device activates the power unit, opening the valve at the nozzle. Water is then ejected under pressure, forming a pulsed spray. When the pressure in the chamber drops to a certain level, the valve closes, completing one pulse cycle.

[0003] Existing pulse distributors for hydrolysis tanks are prone to overflow during operation due to fluctuations in influent flow or sludge blockage, which can cause the water level inside the distributor to rise. The fixed height of the upper opening of the existing pulse distributors cannot adapt to changes in water level. Some designs solve the overflow problem by increasing the overall height, but this results in an excessively large distributor size and difficulties in installation and maintenance. After overflow, the system needs to be shut down for cleaning, which affects the continuity of wastewater treatment. To solve the above problems, an internal circulation anti-overflow device for pulse distributors is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an internal circulation anti-overflow device for a pulse water distributor, which solves the problem.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an internal circulation anti-overflow device for a pulse water distributor, comprising a water distributor body, a bell jar and a siphon tube inside the water distributor body, a water outlet pipe fixedly connected to the bottom surface of the water distributor body, a rectangular groove on one side of the water distributor body, an anti-overflow pipe fixedly installed in the rectangular groove, a rotatable lever arm on the upper surface of the anti-overflow pipe, a counterweight and a movable rod connected to the bottom surface of the lever arm, a hinge rod connected to the bottom end of the movable rod, a cover plate rotatably installed inside the anti-overflow pipe, a second sealing ring fixedly connected to one surface of the cover plate, and one end of the hinge rod connected to the cover plate. Water pressure, combined with the counterweight, keeps the cover plate closed. When the water level exceeds the height of the anti-overflow pipe, the torque of the water pressure acting on the inner side of the cover plate is greater than the torque of the counterweight, the cover plate is pushed open, and water is discharged from the anti-overflow pipe.

[0007] Preferably, the lever arm includes a long arm and a short arm. The long arm has an internal cavity, and a screw is rotatably mounted inside the cavity. One end of the long arm is connected to a rotating wheel, and one end of the rotating wheel is fixedly connected to the screw. A movable block is threadedly connected to the circumferential side of the screw. A limit block is fixedly connected to the bottom surface of the movable block, and the bottom surface of the limit block is connected to a counterweight. When the screw rotates, the movable block drives the counterweight to move through the limit block, thereby adjusting the magnitude of the counterweight torque.

[0008] Preferably, a mounting bracket is fixedly connected to the upper surface of the overflow prevention pipe, a rotating shaft is rotatably connected inside the mounting bracket, the rotating shaft is fixedly connected to the lever arm, and a first sealing ring is fixedly installed at the connection position between the movable rod and the overflow prevention pipe.

[0009] Preferably, a plurality of siphon breaking pipes are installed inside the bell jar, a tank cover is installed on the water distributor body, a vent pipe is fixedly installed on the tank cover, a solenoid valve is fixedly installed on the vent pipe, and an inlet pipe and a return inlet pipe are fixedly connected to the peripheral side of the water distributor body.

[0010] Preferably, the short arm is inclined upwards, the long arm is inclined downwards, the hinge rod is hinged to the movable rod, and the cover plate is hinged to the hinge rod.

[0011] Preferably, a lead screw is fixedly connected to the upper surface of the counterweight, and a threaded groove is provided on the bottom surface of the limiting block. The lead screw and the threaded groove are threadedly engaged for disassembling and replacing the counterweight.

[0012] Preferably, a limiting groove is formed on the bottom surface of the long arm, and sealing airbags are fixedly installed on both sides of the inner wall of the limiting groove to seal the screw and prevent jamming without hindering the movement of the limiting block.

[0013] This utility model has the following beneficial effects:

[0014] This utility model has the effect of adapting to changes in water level and can avoid the phenomenon of water overflow. Specifically, it is made by setting up a lever arm, a cover plate and a counterweight. Under normal water level, the cover plate is connected to the counterweight through the lever arm, so that the cover plate seals and closes the overflow prevention pipe under normal water level. When the water level exceeds the overflow port height, the torque of the water pressure acting on the inner side of the cover plate is greater than the torque of the counterweight, the cover plate is pushed open, and water is discharged from the overflow port. After the water level drops, the counterweight pulls the cover plate to reset and close, thus playing the function of preventing overflow.

[0015] This invention features precise matching of water level safety thresholds. Specifically, it uses a screw and a moving block to adjust the position of the counterweight according to the amount of water entering the system. When the water flow increases, the wheel is rotated counterclockwise, causing the screw to rotate counterclockwise. The moving block, through a limit block, moves the counterweight downwards, thus lowering the counterweight and raising the safety water level. When the water flow decreases, the wheel is rotated clockwise, causing the counterweight to move upwards, preventing the cover from opening arbitrarily.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the anti-overflow mechanism of this utility model;

[0021] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure;

[0022] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0023] The components represented by each number in the attached diagram are listed below: 1. Water distributor body; 2. Overflow prevention pipe; 3. Tank cover; 4. Water outlet pipe; 5. Vent pipe; 6. Solenoid valve; 7. Counterweight; 8. Bell jar; 9. Siphon breaking pipe; 10. Siphon pipe; 11. Mounting bracket; 12. Lever arm; 13. Long arm; 14. Short arm; 15. Rotating shaft; 16. Movable rod; 17. First sealing ring; 18. Rotating wheel; 19. Hinge rod; 20. Cover plate; 21. Second sealing ring; 22. Screw; 23. Moving block; 24. Limiting block; 25. Sealing airbag. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figures 1-5 As shown, this utility model is an internal circulation anti-overflow device for a pulse water distributor, including a water distributor body 1. The water distributor body 1 is provided with a bell jar 8 and a siphon tube 10. A water outlet pipe 4 is fixedly connected to the bottom surface of the water distributor body 1. Several siphon breaking pipes 9 are installed inside the bell jar 8. A tank cover 3 is installed on the water distributor body 1. A vent pipe 5 is fixedly installed on the tank cover 3. A solenoid valve 6 is fixedly installed on the vent pipe 5. A water inlet pipe and a return water inlet pipe are fixedly connected to the peripheral side of the water distributor body 1. The rapid water flow in the siphon tube carries away the air in the main pipe, creating a certain vacuum in the main pipe. Under the action of atmospheric pressure inside and outside the pipe, the water in the container enters the main pipe and is discharged into the pool. Because the water flow speed is very fast, the water distribution can be completed in a short time, achieving the pulse effect.

[0027] A rectangular groove is provided on one side of the water distributor body 1. An overflow prevention pipe 2 is fixedly installed in the rectangular groove. A rotatable lever arm 12 is provided on the upper surface of the overflow prevention pipe 2. A mounting bracket 11 is fixedly connected to the upper surface of the overflow prevention pipe 2. A rotating shaft 15 is rotatably connected in the mounting bracket 11. The rotating shaft 15 is fixedly connected to the lever arm 12. The lever arm 12 includes a long arm 13 and a short arm 14. The short arm 14 is inclined upwards, and the long arm 13 is inclined downwards. The hinge rods 19 are all hinged to the movable rod 16. The cover plate 20 is hinged to the hinge rods 19. The bottom surface of the long arm 13 is connected to... A counterweight 7 is attached, and a movable rod 16 is hinged to the bottom surface of the short arm 13. A hinge rod 19 is hinged to the bottom end of the movable rod 16. A cover plate 20 is rotatably installed inside the overflow prevention pipe 2. Sealing bearings are provided on both sides of the inner wall of the overflow prevention pipe 2. The cover plate 20 is rotatably connected to the overflow prevention pipe 2 through the sealing bearings. A first sealing ring 17 is fixedly installed at the connection position between the movable rod 16 and the overflow prevention pipe 2. The first sealing ring 17 seals the movable position while ensuring that the movable rod 16 can move, so as to prevent impurities from entering and causing the movable rod 16 to jam.

[0028] A second sealing ring 21 is fixedly connected to one surface of the cover plate 20. One end of the hinge rod 19 is connected to the cover plate 20. When the water level is normal, the counterweight 7 generates a locking torque through the long arm 13, and the upper part of the short arm 14 presses the cover plate 20 shut. The weight of the cover plate 20 contributes to the additional locking force. The second sealing ring 21 rebounds to resist small fluctuations. When the water level exceeds the height of the overflow pipe 2 (i.e., the safe water level), the torque of the water pressure acting on the inner side of the cover plate 20 is greater than the counterweight torque. The cover plate 20 is pushed open, and water is discharged from the overflow pipe 2.

[0029] The long arm 13 has an internal cavity with a rotating screw 22 inside. The screw 22 is made of stainless steel and coated with an anti-corrosion coating to prevent rust and corrosion and avoid jamming. One end of the long arm 13 is connected to a rotating wheel 18, and one end of the rotating wheel 18 is fixedly connected to the screw 22. A moving block 23 is threadedly connected to the circumferential side of the screw 22. A limit block 24 is fixedly connected to the bottom surface of the moving block 23. A limit groove is formed on the bottom surface of the long arm 13. Sealing airbags 25 are fixedly installed on both sides of the inner wall of the limit groove. While not hindering the movement of the limit block 24, the screw 22 is sealed to prevent jamming. A lead screw is fixedly connected to the upper surface of the counterweight 7. A threaded groove is formed on the bottom surface of the limit block 24. The lead screw and the threaded groove are threaded together for disassembling and replacing the counterweight 7. When the screw 22 rotates, the moving block 23 drives the counterweight 7 to move through the limit block 24, adjusting the magnitude of the counterweight torque.

[0030] Working principle:

[0031] The overflow prevention pipe 2 is located at the safe water level on the side wall of the water distributor body 1. The cover plate 20 is precisely fitted to the edge of the overflow prevention pipe 2 through the second sealing ring 21 to form an initial sealing state. The lever arm 12 is a rigid rod with one end connected to the cover plate 20 and the other end suspending the counterweight 7. The middle part is connected through the rotating shaft 15 to form a lever structure with the rotating shaft 15 as the rotation center. During normal operation, the weight of the counterweight 7 is transmitted to the cover plate 20 through the lever arm 12, generating a downward pulling force (resistance torque). Together with the weight of the cover plate 20 and the pre-compression force of the second sealing ring 21, the cover plate 20 is tightly closed at the overflow port to prevent water from overflowing. When the water level in the water distributor body 1 rises above the safe water level due to sudden changes in the inlet flow or abnormal drainage (i.e., when the water level reaches the overflow prevention pipe 2), the water exerts pressure (driving torque) on the cover plate 20. This pressure increases linearly with the rise in water level. When the driving torque exceeds the counterweight 7, the pressure increases. When the resistance torque transmitted by the lever arm 12 is applied to block 7, the cover plate 20 is pushed to rotate, and water flows out from the overflow prevention pipe 2, realizing the automatic overflow prevention function. To prevent the overflowed water from splashing randomly, a water receiving device can be placed directly below the overflow prevention pipe 2. As the overflow proceeds, the water level in the container gradually decreases, and the driving torque decreases. When the driving torque is less than the resistance torque, the weight of the counterweight block 7 pulls the cover plate back tight through the lever arm, causing it to reset and close, restoring the sealed state, and the can lid 2 can be opened. When it is necessary to increase or decrease the water intake at a certain time, the rotating wheel 18 is rotated counterclockwise, which drives the screw 22 to rotate counterclockwise. The moving block 23 drives the counterweight block 7 to move downward through the limit block 24, so that the counterweight moves down and can raise the safe water level. When the water intake decreases, the rotating wheel 18 is rotated clockwise, and the counterweight block 7 moves upward, preventing the cover plate from opening randomly. The rotating shaft 15 is made of stainless steel.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An internal circulation anti-overflow device for a pulse water distributor, comprising a water distributor body (1), wherein a bell jar (8) and a siphon pipe (10) are provided inside the water distributor body (1), and a water outlet pipe (4) is fixedly connected to the bottom surface of the water distributor body (1), characterized in that: A rectangular groove is provided on one side of the water distributor body (1). An overflow prevention pipe (2) is fixedly installed in the rectangular groove. A rotatable lever arm (12) is provided on the upper surface of the overflow prevention pipe (2). A counterweight (7) and a movable rod (16) are connected to the bottom surface of the lever arm (12). A hinge rod (19) is connected to the bottom end of the movable rod (16). A cover plate (20) is rotatably provided inside the overflow prevention pipe (2). A second sealing ring (21) is fixedly connected to one surface of the cover plate (20). One end of the hinge rod (19) is connected to the cover plate (20). The water pressure and the counterweight force keep the cover plate (20) closed. When the water level exceeds the height of the overflow prevention pipe (2), the torque of the water pressure acting on the inner side of the cover plate (20) is greater than the counterweight torque. The cover plate (20) is pushed open, and water is discharged from the overflow prevention pipe (2).

2. The internal circulation anti-overflow device for a pulse water distributor according to claim 1, characterized in that: The lever arm (12) includes a long arm (13) and a short arm (14). The long arm (13) has a cavity inside, and a screw (22) is rotatably installed inside the cavity. One end of the long arm (13) is connected to a wheel (18), and one end of the wheel (18) is fixedly connected to the screw (22). A moving block (23) is threadedly connected to the circumferential side of the screw (22). A limit block (24) is fixedly connected to the bottom surface of the moving block (23). The bottom surface of the limit block (24) is connected to the counterweight (7). When the screw (22) rotates, the moving block (23) drives the counterweight (7) to move through the limit block (24) to adjust the magnitude of the counterweight torque.

3. The internal circulation anti-overflow device for a pulse water distributor according to claim 1, characterized in that: An installation bracket (11) is fixedly connected to the upper surface of the overflow prevention pipe (2). A rotating shaft (15) is rotatably connected inside the installation bracket (11). The rotating shaft (15) is fixedly connected to the lever arm (12). A first sealing ring (17) is fixedly installed at the connection position between the movable rod (16) and the overflow prevention pipe (2).

4. The internal circulation anti-overflow device for a pulse water distributor according to claim 1, characterized in that: The bell jar (8) is equipped with several siphon breaking pipes (9), the water distributor body (1) is equipped with a tank cover (3), the tank cover (3) is fixedly installed with a vent pipe (5), the vent pipe (5) is fixedly installed with a solenoid valve (6), and the water distributor body (1) is fixedly connected with a water inlet pipe and a return water inlet pipe.

5. The internal circulation anti-overflow device for a pulse water distributor according to claim 2, characterized in that: The short arm (14) is inclined upward, the long arm (13) is inclined downward, the hinge rod (19) is hinged to the movable rod (16), and the cover plate (20) is hinged to the hinge rod (19).

6. The internal circulation anti-overflow device for a pulse water distributor according to claim 2, characterized in that: The upper surface of the counterweight (7) is fixedly connected with a lead screw, and the bottom surface of the limiting block (24) is provided with a threaded groove. The lead screw and the threaded groove are threadedly engaged for disassembling and replacing the counterweight (7).

7. The internal circulation anti-overflow device for a pulse water distributor according to claim 2, characterized in that: The bottom surface of the long arm (13) is provided with a limiting groove, and sealing airbags (25) are fixedly installed on both sides of the inner wall of the limiting groove. While not hindering the movement of the limiting block (24), the screw (22) is sealed to prevent jamming.

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