Water purification device for gate of water conservancy project

By designing a water purification device for a water conservancy project gate, and utilizing the gate knife lifting and chemical mixing mechanism, the problem of impurity layer on the filter screen surface was solved, achieving multi-stage filtration and high-efficiency water purification.

CN120967893APending Publication Date: 2025-11-18HENAN WATER INVESTMENT CAIZHOU WATER ECOLOGY CO LTD
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Patent Information

Application Number
CN202511282176.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

After a period of use, existing gate filters tend to develop a layer of impurities on their screens that is difficult to clean, affecting filtration efficiency and overall performance.

Method used

A water purification device for a gate in a water conservancy project was designed, comprising a purification tank, a lifting mechanism, a detection mechanism, a liquid dosing mechanism, and a mixing mechanism. Multi-stage filtration is achieved through the lifting and lowering of the gate blades, combined with the addition of chemicals and agitation mixing, to remove impurities and prevent clogging.

Benefits of technology

It achieves multi-stage filtration of water flow, improves worker cleaning efficiency, ensures the quality and efficiency of water purification, avoids clogging of filter screens, and guarantees the long-term performance of the gate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of hydraulic engineering gates, and discloses a hydraulic engineering gate water purification device which comprises a water purification tank, an end cover plate is fixedly mounted on the left side of the upper end face of the water purification tank, a gate cutter is slidably mounted in an inner cavity of the water purification tank, a top plate is fixedly mounted on the upper end face of the end cover plate, and the hydraulic engineering gate water purification device further comprises a hoisting mechanism. The hoisting mechanism is arranged on the lower end face of the top plate; the detection mechanism is arranged on the left side of the inner cavity of the water purification tank; the liquid feeding mechanisms are arranged on the front side and the rear side of the upper end face of the end cover plate; and a mixing mechanism. Through the arrangement of the hoisting mechanism, the gate can be opened and closed, through the arrangement of multiple groups of filter screen plates, water flow after the gate is opened can be intercepted and filtered, and through the cooperation of the liquid feeding mechanism and the mixing mechanism, chemicals can be fed into the water purification tank, and impurity layers attached to the surfaces of the filter screen plates can be removed; and the purification efficiency and quality during subsequent gate opening are ensured.
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Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering gate technology, specifically to a water purification device for water conservancy engineering gates. Background Technology

[0002] Water conservancy projects are engineering projects constructed to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. They are also called water engineering. Water is an essential and precious resource for human production and life, but its natural state does not fully meet human needs. Only by constructing water conservancy projects can we control water flow, prevent floods, and regulate and distribute water to meet the needs of people's lives and production for water resources. Water conservancy projects require the construction of different types of hydraulic structures such as dams, dikes, spillways, sluice gates, intakes, canals, ferries, rafts, and fishways to achieve their goals.

[0003] However, existing sluice gates still have some shortcomings. For example, most sluice gates only use filter screens to intercept and purify water. After a period of use, due to the influence of aquatic animals, phytoplankton, and other impurities, a layer of impurities that is difficult to wash off forms on the surface of the filter screen. The presence of this impurity layer affects the normal use of the filter screen, thus reducing the overall efficiency of the sluice gate in the water conservancy project. Therefore, there is an urgent need for a water purification device for water conservancy project sluice gates to solve this problem. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a water purification device for a gate in a water conservancy project to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a water purification device for a gate in a water conservancy project, comprising a water purification tank, a baffle fixedly installed on the right side of the bottom surface of the inner cavity of the water purification tank, an end cover plate fixedly installed on the left side of the upper surface of the water purification tank, a gate blade slidably installed in the inner cavity of the water purification tank, a top plate fixedly installed on the upper surface of the end cover plate, and a filter screen plate detachably installed in the middle of the bottom surface of the inner cavity of the water purification tank, and further comprising:

[0008] A lifting mechanism is provided on the lower end face of the top plate, and the lifting mechanism is used to lift the gate knife.

[0009] A detection mechanism is located on the left side of the inner cavity of the water purification tank, and the detection mechanism is used to monitor the water level in real time;

[0010] Liquid injection mechanism, which is arranged on the front and back of the upper end surface of the end cover plate, and is used for adding medicament to the inner cavity of the water purifying tank;

[0011] Mixing mechanism, which is arranged on the right side of the inner cavity of the water purifying tank, and is used for stirring the standing water in the inner cavity of the water purifying tank.

[0012] Preferably, the lifting mechanism comprises limiting columns fixedly installed on the front and back of the lower end surface of the top plate, and a lifting lead screw rotatably installed in the middle of the inner cavity of the top plate, the limiting columns are in sliding connection with the gate knife, and the lifting lead screw is in threaded connection with the gate knife.

[0013] Preferably, the upper end surface of the lifting lead screw is fixedly installed with a lifting worm gear, the upper end surface of the top plate is fixedly installed with support plates on the left and right sides, a lifting worm rotatably installed between the support plates on the left and right sides, the lifting worm is in meshing connection with the lifting worm gear, the right side of the upper end surface of the top plate is fixedly installed with a lifting motor through the rack, and the output shaft end of the lifting motor is fixedly connected with the lifting worm.

[0014] Preferably, the detection mechanism comprises a positioning sleeve fixedly installed on the left side of the lower end surface of the end cover plate, and movable plates slidingly installed on the upper and lower sides of the positioning sleeve, a rack plate fixedly installed between the movable plates on the upper and lower sides, a transmission rod rotatably installed on the right end surface of the positioning sleeve, a driving gear fixedly installed on the left end surface of the transmission rod, and a floating plate fixedly installed on the lower end surface of the rack plate.

[0015] Preferably, the driving gear is in meshing connection with the rack plate, the left and right end surfaces of the floating plate are provided with inclined surfaces, a driving pulley is fixedly installed on the right end surface of the transmission rod, a bracket is fixedly installed on the right end surface of the positioning sleeve, the transmission rod is in rotary connection with the bracket, a torsional spring is woundly installed on the right side wall of the transmission rod, one end of the torsional spring is fixedly installed on the side wall of the bracket, and the other end is fixedly installed on the side wall of the driving pulley.

[0016] Preferably, the liquid injection mechanism comprises a support plate fixedly installed on the right side of the upper end surface of the end cover plate, and a positioning cylinder rotatably installed in the inner cavity of the support plate, a threaded rod in threaded connection with the inner cavity of the positioning cylinder, a piston rod fixedly installed on the right end surface of the threaded rod, a driven pulley fixedly installed on the side wall of the positioning cylinder, and the driving pulley and the driven pulley in transmission connection through a belt.

[0017] Preferably, the right side of the upper end surface of the end cover plate is fixedly installed with an energy storage cylinder, a piston plate slidingly installed in the inner cavity of the energy storage cylinder, the piston plate in fixed connection with the piston rod, a return spring fixedly installed on the right end surface of the piston plate, the other end of the return spring fixedly installed on the inner cavity side wall of the energy storage cylinder, and a liquid storage box fixedly installed on the right side of the middle of the upper end surface of the end cover plate.

[0018] Preferably, the front and rear sides of the energy storage cylinder outer wall is fixedly installed with a double pipe, the inner cavity of the double pipe is provided with a one-way water valve with an outlet to the energy storage cylinder inner cavity, the other end of the double pipe extends to the inner cavity of the liquid storage box, the lower end face of the end cover plate is fixedly installed with a sprayer on the right side, the outer wall of the energy storage cylinder is fixedly installed with a liquid outlet pipe, the other end of the liquid outlet pipe is fixedly connected with the sprayer, and the inner cavity of the liquid outlet pipe is provided with a one-way water valve with an outlet to the inner cavity of the sprayer.

[0019] Preferably, the mixing mechanism comprises a mounting plate fixedly installed on the right side of the upper end face of the end cover plate, and a mixing worm installed in the inner cavity of the mounting plate, the left end face of the mixing worm is fixedly installed with a spiral rod, the spiral rod is connected with the energy storage cylinder in a penetrating manner, the spiral rod is threadedly connected with the piston rod, and the thread lifting of the spiral rod is greater than the equivalent friction angle of the inner cavity of the piston rod.

[0020] Preferably, the right side of the upper end face of the end cover plate is rotatably installed with an extension rod, the upper end face of the extension rod is fixedly installed with a mixing worm wheel, the mixing worm wheel is meshingly connected with the mixing worm, the lower end face of the extension rod is fixedly installed with an impeller seat, and the impeller seat is arranged at the bottom of the inner cavity of the water purification tank.

[0021] Compared with the prior art, the present application has the following advantages:

[0022] 1、In the present application, workers can start the lifting motor to run, so that the lifting wire rod rotates, and under the limiting constraint of the front and rear side limiting columns on the gate knife, the lifting wire rod can shrink into the inner cavity of the gate knife, so that the gate knife continuously rises upward, the left side inlet of the water purification tank can be opened, water flow can pass through the inner cavity of the water purification tank, and under the cooperation of the multiple filter screen plates arranged in the inner cavity of the water purification tank, the garbage and impurities in the flowing water flow can be intercepted and filtered, so that the entire gate realizes the function of multi-stage filtering of water flow, and after the gate knife falls, workers can regularly and quickly clean the garbage and impurities in the water purification tank, thereby improving the work efficiency of workers.

[0023] 2、The invention, when the gate knife drops, under the blocking effect of the enclosure, the water flow in the water tank will continue to drop, until the water flow liquid level is lower than the height of the enclosure, and at this time the water flow buoyancy of the floating plate will gradually decrease, the torsional spring will rebound, the floating plate is placed on the water flow liquid surface, the return spring is also rebounded, the piston plate moves to the left side of the inner cavity of the energy storage cylinder, with the continuous decrease of the volume of the left cavity of the energy storage cylinder, the medicament in the energy storage cylinder can enter the inner cavity of the sprayer through the liquid outlet pipe, realizing the function of adding medicament to the inner cavity of the water tank; When the piston rod is driven by the piston plate to move to the left side of the inner cavity of the energy storage cylinder, the spiral rod can drive the mixing worm to rotate, the mixing worm wheel can drive the extension rod to rotate, at this time the impeller seat can rotate in the inner cavity of the water tank, realizing the stirring and mixing of water flow and medicament, increasing the contact area of medicament and filter screen plate, avoiding the blockage of impurity layer to the holes of filter screen plate, ensuring the efficiency and quality of water purification in subsequent use of the whole gate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view overall structure schematic diagram of the water conservancy gate water purification device of the invention;

[0025] Figure 2 It is a rear view overall structure schematic diagram of the water conservancy gate water purification device of the invention;

[0026] Figure 3 It is a top view overall structure schematic diagram of the water conservancy gate water purification device of the invention;

[0027] Figure 4 It is a schematic diagram of the state of the water conservancy gate water purification device of the invention when the gate is closed;

[0028] Figure 5 It is a schematic diagram of the structure of the positioning sleeve of the water conservancy gate water purification device of the invention;

[0029] Figure 6 It is a schematic diagram of the structure of the end cover plate of the water conservancy gate water purification device of the invention;

[0030] Figure 7 It is a schematic diagram of the structure of the energy storage cylinder of the water conservancy gate water purification device of the invention;

[0031] Figure 8 It is a schematic diagram of the connection structure of the piston rod of the water conservancy gate water purification device of the invention.

[0032] In the diagram: 1. Clean water tank; 11. Enclosure; 2. End cover plate; 3. Gate knife; 4. Top plate; 5. Filter screen; 6. Lifting mechanism; 61. Limiting post; 62. Lifting screw; 63. Lifting worm gear; 64. Support plate; 65. Lifting worm; 66. Lifting motor; 7. Detection mechanism; 71. Positioning sleeve; 72. Movable plate; 73. Rack plate; 74. Transmission rod; 75. Drive gear; 76. Float plate; 77. Drive pulley; 78. Support frame 79. Torsion spring; 8. Liquid dosing mechanism; 81. Support plate; 82. Positioning cylinder; 83. Threaded rod; 84. Piston rod; 85. Driven pulley; 86. Energy storage cylinder; 861. Double-pass pipe; 862. Liquid outlet pipe; 87. Piston plate; 88. Return spring; 89. Liquid storage box; 810. Sprayer; 9. Mixing mechanism; 91. Mounting plate; 92. Mixing worm gear; 93. Helical rod; 94. Extension rod; 95. Mixing worm wheel; 96. Impeller seat. Detailed Implementation

[0033] 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-8 This invention provides a technical solution for a water purification device for a gate in a water conservancy project: It includes a purification tank 1, a baffle 11 fixedly installed on the right side of the bottom surface of the inner cavity of the purification tank 1, an end cover plate 2 fixedly installed on the left side of the upper surface of the purification tank 1, a gate blade 3 slidably installed in the inner cavity of the purification tank 1, a top plate 4 fixedly installed on the upper surface of the end cover plate 2, and a filter screen 5 detachably installed in the middle of the bottom surface of the inner cavity of the purification tank 1. It also includes:

[0035] The lifting mechanism 6 is located on the lower end face of the top plate 4 and is used to lift the gate knife 3.

[0036] The detection mechanism 7 is located on the left side of the inner cavity of the water purification tank 1. The detection mechanism 7 is used to monitor the water level in real time.

[0037] The liquid dosing mechanism 8 is located on both sides of the upper end of the end cover plate 2. The liquid dosing mechanism 8 is used to add chemicals into the inner cavity of the water purification tank 1.

[0038] The mixing mechanism 9 is located on the right side of the inner cavity of the water purification tank 1. The mixing mechanism 9 is used to agitate the static water in the inner cavity of the water purification tank 1.

[0039] Furthermore, the lifting mechanism 6 includes limiting posts 61 fixedly installed on both the front and rear sides of the lower end face of the top plate 4, and a lifting screw rod 62 rotatably installed in the middle of the inner cavity of the top plate 4. The limiting posts 61 are slidably connected to the gate knife 3, and the lifting screw rod 62 is threadedly connected to the gate knife 3.

[0040] A lifting worm gear 63 is fixedly installed on the upper end face of the lifting screw 62. Support plates 64 are fixedly installed on the left and right sides of the upper end face of the top plate 4. A lifting worm 65 is rotatably installed between the support plates 64 on the left and right sides. The lifting worm 65 is meshed with the lifting worm gear 63. A lifting motor 66 is fixedly installed on the right side of the upper end face of the top plate 4 through the frame. The output shaft end of the lifting motor 66 is fixedly connected to the lifting worm 65.

[0041] It should be noted that workers can start the lifting motor 66 to rotate the lifting screw 62. Since the lifting screw 62 is threadedly connected to the gate blade 3, under the limiting constraint of the gate blade 3 by the front and rear limit posts 61, the lifting screw 62 can retract into the inner cavity of the gate blade 3, causing the gate blade 3 to rise continuously. At this time, the left inlet of the water tank 1 can be opened, and water can flow through the inner cavity of the water tank 1. The inner cavity of the water tank 1 is equipped with multiple sets of filter screens 5, which can intercept and filter garbage and impurities in the flowing water, so that the entire gate can realize the function of multi-stage filtration of water flow. After the gate blade 3 falls, workers can regularly and quickly clean the garbage and impurities in the water tank 1, improving the workers' work efficiency.

[0042] Furthermore, the detection mechanism 7 includes a positioning sleeve 71 fixedly installed on the left side of the lower end face of the end cover plate 2, and movable plates 72 slidably installed on the upper and lower sides of the positioning sleeve 71. A rack plate 73 is fixedly installed between the upper and lower movable plates 72. A transmission rod 74 is rotatably installed on the right end face of the positioning sleeve 71. A drive gear 75 is fixedly installed on the left end face of the transmission rod 74. A float plate 76 is fixedly installed on the lower end face of the rack plate 73.

[0043] The drive gear 75 meshes with the rack plate 73. The left and right end faces of the float plate 76 are set as inclined surfaces. The right end face of the transmission rod 74 is fixedly installed with the drive pulley 77. The right end face of the positioning sleeve 71 is fixedly installed with the bracket 78. The transmission rod 74 is rotatably connected with the bracket 78. A torsion spring 79 is wound and installed on the right side wall of the transmission rod 74. One end of the torsion spring 79 is fixedly installed on the side wall of the bracket 78, and the other end is fixedly installed on the side wall of the drive pulley 77.

[0044] It should be noted that when the gate knife 3 rises, water can continuously flow through the inner cavity of the clean water tank 1. At this time, the water level is relatively high. Under the buoyancy of the water flow, the float plate 76 can be driven to move the movable plate 72 upward. The movable plates 72 on both the upper and lower sides can drive the rack plate 73 to move towards the upper part of the inner cavity of the positioning sleeve 71. Since the rack plate 73 is meshed with the drive gear 75, the drive gear 75 can drive the transmission rod 74 to rotate, causing the torsion spring 79 to be compressed. Since the transmission rod 74 is fixedly connected to the drive pulley 77, the transmission rod 74 can drive the drive pulley 77 to rotate.

[0045] Furthermore, the liquid dispensing mechanism 8 includes a support plate 81 fixedly installed on the right side of the upper end face of the end cover plate 2, and a positioning cylinder 82 rotatably installed in the inner cavity of the support plate 81. A threaded rod 83 is threadedly installed in the inner cavity of the positioning cylinder 82, and a piston rod 84 is fixedly installed on the right end face of the threaded rod 83. A driven pulley 85 is fixedly installed on the side wall of the positioning cylinder 82, and the drive pulley 77 and the driven pulley 85 are connected by belt drive.

[0046] An energy storage cylinder 86 is fixedly installed on the right side of the upper end face of the end cover plate 2. A piston plate 87 is slidably installed in the inner cavity of the energy storage cylinder 86. The piston plate 87 is fixedly connected to the piston rod 84. A return spring 88 is fixedly installed on the right end face of the piston plate 87. The other end of the return spring 88 is fixedly installed on the inner cavity side wall of the energy storage cylinder 86. A liquid storage box 89 is fixedly installed in the middle of the right side of the upper end face of the end cover plate 2.

[0047] A double-pass pipe 861 is fixedly installed on the outer wall of the energy storage cylinder 86 on both the front and rear sides. The inner cavity of the double-pass pipe 861 is provided with a one-way water valve with the outlet leading to the inner cavity of the energy storage cylinder 86. The other end of the double-pass pipe 861 extends to the inner cavity of the liquid storage box 89. A sprayer 810 is fixedly installed on the front and rear sides of the lower right side of the end cover plate 2. A liquid outlet pipe 862 is fixedly installed on the outer wall of the energy storage cylinder 86. The other end of the liquid outlet pipe 862 is fixedly connected to the sprayer 810. The inner cavity of the liquid outlet pipe 862 is provided with a one-way water valve with the outlet leading to the inner cavity of the sprayer 810.

[0048] It should be noted that under the transmission of the belt, the driven pulley 85 also rotates. Since the driven pulley 85 is fixedly connected to the positioning cylinder 82, the positioning cylinder 82 will also rotate. Because the piston plate 87 slides within the cavity of the energy storage cylinder 86, the threaded rod 83 will move to the right side of the cavity of the positioning cylinder 82. The threaded rod 83 can drive the piston rod 84 to pull the piston plate 87 to the right side of the cavity of the energy storage cylinder 86, compressing the return spring 88. As the volume of the cavity on the left side of the energy storage cylinder 86 continuously increases, the pressure volume of the internal agent continuously decreases. The agent in the storage box 89 can enter the cavity of the energy storage cylinder 86 through the double-pass pipe 861. The pressure of the agent inside the energy storage cylinder 86 is balanced. When the gate knife 3 descends, the water flow in the water tank 1 will continuously decrease due to the obstruction of the enclosure 11 until the water level is lower than the height of the enclosure 11. At this time, the buoyancy of the water flow on the float 76 will gradually decrease, and the torsion spring 79 will rebound, placing the float 76 on the water surface. The return spring 88 will also rebound, causing the piston plate 87 to move to the left side of the inner cavity of the energy storage cylinder 86. As the volume of the cavity on the left side of the energy storage cylinder 86 continuously decreases, the agent in the energy storage cylinder 86 can enter the inner cavity of the sprayer 810 through the liquid outlet pipe 862, realizing the function of adding agent to the inner cavity of the water tank 1.

[0049] Furthermore, the mixing mechanism 9 includes a mounting plate 91 fixedly installed on the right side of the upper end face of the end cover plate 2, and a mixing worm 92 rotatably installed in the inner cavity of the mounting plate 91. A helical rod 93 is fixedly installed on the left end face of the mixing worm 92. The helical rod 93 is connected through the energy storage cylinder 86 and threadedly connected to the piston rod 84. The threaded lifting of the helical rod 93 is greater than the equivalent friction angle of the inner cavity of the piston rod 84.

[0050] An extension rod 94 is rotatably mounted on the right side of the upper end face of the end cover plate 2. A mixing worm gear 95 is fixedly mounted on the upper end face of the extension rod 94. The mixing worm gear 95 is meshed with the mixing worm 92. An impeller seat 96 is fixedly mounted on the lower end face of the extension rod 94. The impeller seat 96 is located at the bottom of the inner cavity of the water purification tank 1.

[0051] It should be noted that when the piston plate 87 drives the piston rod 84 to move to the left side of the inner cavity of the energy storage cylinder 86, the spiral rod 93 can drive the mixing worm 92 to rotate because the thread lifting of the spiral rod 93 is greater than the equivalent friction angle of the inner cavity of the piston rod 84. The mixing worm 92 meshes with the mixing worm wheel 95, and the mixing worm wheel 95 can drive the extension rod 94 to rotate. The extension rod 94 is fixedly connected to the impeller seat 96. At this time, the impeller seat 96 can rotate continuously in the inner cavity of the water purification tank 1 to agitate and mix the water flow and the agent, thereby increasing the contact area between the agent and the filter screen plate 5, avoiding the blockage of the holes in the filter screen plate 5 by the impurity layer, and ensuring the efficiency and quality of water purification when the entire gate is used in subsequent applications.

[0052] Working principle:

[0053] The reagents in the inner cavities of the energy storage cylinder 86 and the liquid storage box 89 in this device are microbial agents, composed of Bacillus, Pseudomonas and nitrifying bacteria. Bacillus can decompose carbohydrates, Pseudomonas can degrade oily substances, and nitrifying bacteria can convert ammonia nitrogen into nitrates. They can basically decompose and adsorb the impurity layer in the water flow.

[0054] During operation, the worker can start the lifting motor 66 to rotate the lifting screw 62. Since the lifting screw 62 is threadedly connected to the gate blade 3, under the limiting constraint of the gate blade 3 by the limit posts 61 on both the front and rear sides, the lifting screw 62 can retract into the inner cavity of the gate blade 3, causing the gate blade 3 to rise continuously. At this time, the left inlet of the water tank 1 can be opened, and water can flow through the inner cavity of the water tank 1. The inner cavity of the water tank 1 is equipped with multiple sets of filter screens 5, which can intercept and filter garbage and impurities in the flowing water, so that the entire gate can realize the function of multi-stage filtration of water flow. After the gate blade 3 falls, the worker can clean the garbage and impurities in the water tank 1 regularly and quickly, which improves the worker's work efficiency. It should be noted that the lifting motor 66 is equipped with an advanced control system that can accurately adjust the speed and torque to adapt to the lifting requirements under different working conditions, ensuring the stability and accuracy of the lifting action.

[0055] When the gate valve 3 rises, water can continuously flow through the inner cavity of the clean water tank 1. At this time, the water level is relatively high. Under the buoyancy of the water flow, the float plate 76 can be driven to move the movable plate 72 upward. The movable plates 72 on both the upper and lower sides can drive the rack plate 73 to move towards the upper part of the inner cavity of the positioning sleeve 71. Since the rack plate 73 is meshed with the drive gear 75, the drive gear 75 can drive the transmission rod 74 to rotate, causing the torsion spring 79 to compress. Since the transmission rod 74 is fixedly connected to the drive pulley 77, the transmission rod 74 can drive the drive pulley 77 to rotate. Under the transmission action of the belt, the driven pulley 85 also... As it rotates, the driven pulley 85 is fixedly connected to the positioning cylinder 82, and the positioning cylinder 82 will also rotate. Since the piston plate 87 slides in the inner cavity of the energy storage cylinder 86, the threaded rod 83 will move to the right side of the inner cavity of the positioning cylinder 82. The threaded rod 83 can drive the piston rod 84 to pull the piston plate 87 to the right side of the inner cavity of the energy storage cylinder 86. The return spring 88 is compressed. As the volume of the cavity on the left side of the energy storage cylinder 86 increases, the pressure volume of the agent inside decreases. The agent in the liquid storage box 89 can enter the inner cavity of the energy storage cylinder 86 through the double-pass pipe 861 to achieve the balance of the agent pressure inside the energy storage cylinder 86.

[0056] When the gate 3 descends, the water flow in the water tank 1 will continuously decrease due to the obstruction of the enclosure 11 until the water level is lower than the height of the enclosure 11. At this time, the buoyancy of the water flow on the float 76 will gradually decrease, the torsion spring 79 will rebound, and the float 76 will be placed on the surface of the water flow. The return spring 88 will also rebound, causing the piston plate 87 to move to the left side of the inner cavity of the energy storage cylinder 86. As the volume of the cavity on the left side of the energy storage cylinder 86 continuously decreases, the agent in the energy storage cylinder 86 can enter the inner cavity of the sprayer 810 through the liquid outlet pipe 862, realizing the function of adding agent to the inner cavity of the water tank 1.

[0057] When the piston plate 87 drives the piston rod 84 to move to the left side of the inner cavity of the energy storage cylinder 86, the spiral rod 93 can drive the mixing worm 92 to rotate because the thread lifting of the spiral rod 93 is greater than the equivalent friction angle of the inner cavity of the piston rod 84. The mixing worm 92 meshes with the mixing worm wheel 95, and the mixing worm wheel 95 can drive the extension rod 94 to rotate. The extension rod 94 is fixedly connected to the impeller seat 96. At this time, the impeller seat 96 can rotate continuously in the inner cavity of the water purification tank 1 to agitate and mix the water flow and the agent, thereby increasing the contact area between the agent and the filter screen plate 5, avoiding the blockage of the holes in the filter screen plate 5 by the impurity layer, and ensuring the efficiency and quality of water purification when the entire gate is used in subsequent applications.

[0058] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A water purification device for a gate in a water conservancy project, comprising a water purification tank (1), wherein a baffle (11) is fixedly installed on the right side of the bottom surface of the inner cavity of the water purification tank (1), and an end cover plate (2) is fixedly installed on the left side of the upper end surface of the water purification tank (1), characterized in that, The inner cavity of the water purification tank (1) is slidably fitted with a gate knife (3), the upper end face of the end cover plate (2) is fixedly fitted with a top plate (4), and a filter screen plate (5) is detachably installed in the middle of the bottom surface of the inner cavity of the water purification tank (1). It also includes: The lifting mechanism (6) is located on the lower end face of the top plate (4) and is used to lift the gate knife (3); The detection mechanism (7) is located on the left side of the inner cavity of the water purification tank (1) and is used to monitor the water level in real time. Liquid dosing mechanism (8) is provided on both sides of the upper end of the end cover plate (2). The liquid dosing mechanism (8) is used to add medicine to the inner cavity of the water purification tank (1). A mixing mechanism (9) is provided on the right side of the inner cavity of the water purification tank (1). The mixing mechanism (9) is used to agitate the static water in the inner cavity of the water purification tank (1).

2. The water purification device for a water conservancy project gate according to claim 1, characterized in that: The lifting mechanism (6) includes a limiting post (61) fixedly installed on both sides of the front and rear of the lower end of the top plate (4), and a lifting screw (62) rotatably installed in the middle of the inner cavity of the top plate (4). The limiting post (61) is slidably connected to the gate knife (3), and the lifting screw (62) is threadedly connected to the gate knife (3).

3. The water purification device for a water conservancy project gate according to claim 2, characterized in that: A lifting worm gear (63) is fixedly installed on the upper end face of the lifting screw (62). Support plates (64) are fixedly installed on the left and right sides of the upper end face of the top plate (4). A lifting worm (65) is rotatably installed between the support plates (64) on the left and right sides. The lifting worm (65) is meshed with the lifting worm gear (63). A lifting motor (66) is fixedly installed on the right side of the upper end face of the top plate (4) through a frame. The output shaft end of the lifting motor (66) is fixedly connected to the lifting worm (65).

4. A water purification device for a gate in a water conservancy project according to claim 1, characterized in that: The detection mechanism (7) includes a positioning sleeve (71) fixedly installed on the left side of the lower end face of the end cover plate (2), and movable plates (72) slidably installed on the upper and lower sides of the positioning sleeve (71). A rack plate (73) is fixedly installed between the movable plates (72) on the upper and lower sides. A transmission rod (74) is rotatably installed on the right end face of the positioning sleeve (71). A drive gear (75) is fixedly installed on the left end face of the transmission rod (74). A float plate (76) is fixedly installed on the lower end face of the rack plate (73).

5. A water purification device for a gate in a water conservancy project according to claim 4, characterized in that: The drive gear (75) meshes with the rack plate (73), the left and right end faces of the float plate (76) are set as inclined surfaces, the right end face of the transmission rod (74) is fixedly installed with a drive pulley (77), the right end face of the positioning sleeve (71) is fixedly installed with a bracket (78), the transmission rod (74) is rotatably connected with the bracket (78), a torsion spring (79) is wound on the right side wall of the transmission rod (74), one end of the torsion spring (79) is fixedly installed on the side wall of the bracket (78), and the other end is fixedly installed on the side wall of the drive pulley (77).

6. A water purification device for a gate in a water conservancy project according to claim 5, characterized in that: The liquid dispensing mechanism (8) includes a support plate (81) fixedly installed on the right side of the upper end face of the end cover plate (2), and a positioning cylinder (82) rotatably installed in the inner cavity of the support plate (81). A threaded rod (83) is threadedly installed in the inner cavity of the positioning cylinder (82). A piston rod (84) is fixedly installed on the right end face of the threaded rod (83). A driven pulley (85) is fixedly installed on the side wall of the positioning cylinder (82). The drive pulley (77) and the driven pulley (85) are connected by belt drive.

7. A water purification device for a gate in a water conservancy project according to claim 6, characterized in that: An energy storage cylinder (86) is fixedly installed on the right side of the upper end face of the end cover plate (2). A piston plate (87) is slidably installed in the inner cavity of the energy storage cylinder (86). The piston plate (87) is fixedly connected to the piston rod (84). A return spring (88) is fixedly installed on the right end face of the piston plate (87). The other end of the return spring (88) is fixedly installed on the inner cavity side wall of the energy storage cylinder (86). A liquid storage box (89) is fixedly installed in the middle of the right side of the upper end face of the end cover plate (2).

8. A water purification device for a gate in a water conservancy project according to claim 7, characterized in that: A double-pass pipe (861) is fixedly installed on the outer wall of the energy storage cylinder (86) on both the front and rear sides. The inner cavity of the double-pass pipe (861) is provided with a one-way water valve with an outlet to the inner cavity of the energy storage cylinder (86). The other end of the double-pass pipe (861) extends to the inner cavity of the liquid storage box (89). A sprayer (810) is fixedly installed on the front and rear sides of the lower right side of the end cover plate (2). A liquid outlet pipe (862) is fixedly installed on the outer wall of the energy storage cylinder (86). The other end of the liquid outlet pipe (862) is fixedly connected to the sprayer (810). The inner cavity of the liquid outlet pipe (862) is provided with a one-way water valve with an outlet to the inner cavity of the sprayer (810).

9. A water purification device for a gate in a water conservancy project according to claim 7, characterized in that: The mixing mechanism (9) includes a mounting plate (91) fixedly installed on the right side of the upper end face of the end cover plate (2), and a mixing worm (92) rotatably installed in the inner cavity of the mounting plate (91). A helical rod (93) is fixedly installed on the left end face of the mixing worm (92). The helical rod (93) is connected through the energy storage cylinder (86). The helical rod (93) is threadedly connected to the piston rod (84). The threaded lifting of the helical rod (93) is greater than the equivalent friction angle of the inner cavity of the piston rod (84).

10. A water purification device for a gate in a water conservancy project according to claim 9, characterized in that: An extension rod (94) is rotatably mounted on the right side of the upper end face of the end cover plate (2). A mixing worm gear (95) is fixedly mounted on the upper end face of the extension rod (94). The mixing worm gear (95) is meshed with the mixing worm (92). An impeller seat (96) is fixedly mounted on the lower end face of the extension rod (94). The impeller seat (96) is located at the bottom of the inner cavity of the water purification tank (1).