Ecological dam device for self-purification of water quality and method thereof

Abstract

The application relates to the field of ecological dams, in particular to an ecological dam device with self-purification of water quality and a method thereof, which comprises a dam main body and a water quality purification device, the water quality purification device comprises a rectangular frame with two open sides, the rectangular frame is installed in the inside of the dam main body, and a plurality of distance-arranged partition plates are fixedly connected in the inside of the rectangular frame. The water quality purification device is combined with the dam main body, when water flows through the dam main body, the water flow can be preliminarily purified by using the purification box, then the purified liquid is sprayed in the water flow after preliminary purification by using the medicine spraying mechanism, and the water flow can be stirred at the same time, so that the mixing effect of the water flow and the purified liquid can be improved, the water flow and the purified liquid are fully mixed, the water quality purification effect is guaranteed, the position of the water quality purification device does not need to be changed, and the work load is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ecological dam, in particular to an ecological dam device for self-purification of water quality and a method thereof. BACKGROUND

[0002] River system is an important factor in urban natural environment and agricultural ecological system, and is one of the most dynamic factors in urban and rural ecological system, which not only plays a water conservancy function of flood control and disaster reduction, but also creates a harmonious natural landscape, and plays an extremely important role in social and economic development. A large amount of untreated or incompletely treated sewage is discharged into rivers, lakes and other water bodies through river systems at all levels, resulting in overall deterioration of water quality of rivers and lakes. Therefore, source interception and purification of pollutants in river systems at all levels have become an important measure for water environment protection.

[0003] At present, when purifying water quality, the purifying liquid is usually sprayed into the river channel, and a series of chemical reactions between the water flow and the purifying liquid are utilized to reduce the concentration of pollutants. This method can effectively reduce the non-point source pollution of pollutants to downstream water bodies. However, when spraying the purifying liquid into the river channel, the position of the water quality purification device needs to be constantly moved to achieve comprehensive spraying of the purifying liquid, which not only has a huge workload, but also is easy to miss, affecting the purification effect of water quality.

[0004] Therefore, the present application provides an ecological dam device for self-purification of water quality to solve the above problems. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present application provides an ecological dam device for self-purification of water quality and a method thereof to solve the problem that the position of the device needs to be constantly moved to achieve comprehensive spraying of the purifying liquid when spraying the purifying liquid into the river channel in the prior art, which not only has a huge workload, but also is easy to miss.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0007] An ecological dam device for self-purification of water quality, comprising a dam main body and a water quality purification device, the water quality purification device comprising a rectangular frame with two open sides, the rectangular frame being installed inside the dam main body, a plurality of equally spaced partition plates being fixedly connected inside the rectangular frame, water quality purification boxes being arranged between the inner wall of the rectangular frame and the partition plates and between adjacent two partition plates, and a pesticide spraying mechanism being arranged on one side of the water quality purification box.

[0008] The medicine spraying mechanism comprises a U-shaped frame and a plurality of equidistantly arranged liquid storage cylinders, the U-shaped frame is fixedly connected to the upper surface of the rectangular frame, the outer surface of each liquid storage cylinder is fixedly connected with two support columns, the support column is fixedly connected to the upper surface of the U-shaped frame at the end away from the liquid storage cylinder, the bottom of each liquid storage cylinder is fixedly connected with a liquid spraying pipe, the liquid spraying pipe is inserted into the interior of the rectangular frame at the end away from the liquid storage cylinder, and a liquid blocking assembly is arranged on the upper surface of each liquid storage cylinder.

[0009] The top of the rectangular frame is fixedly connected with a shell, a plurality of equidistantly arranged stirring shafts are rotatably arranged between the shell and the inner bottom wall of the rectangular frame, a plurality of stirring blades are fixedly connected to the outer surface of each stirring shaft, a driving assembly is arranged on the shell, and the driving assembly is used for driving the rotation of the plurality of stirring shafts and the upward movement of the plurality of liquid blocking assemblies.

[0010] Preferably, the water quality purification tank comprises a purification tank main body, a rectangular slot is formed in the top of the rectangular frame for the purification tank main body to pass through, the bottom of the purification tank main body penetrates through the rectangular slot and is in contact with the inner bottom wall of the rectangular frame, the top of the purification tank main body is fixedly connected with a mounting plate, and the mounting plate is mounted on the top of the rectangular frame by screws.

[0011] Preferably, the liquid blocking assembly comprises a liquid blocking ball and a lifting plate, the top of the liquid blocking ball is fixedly connected with a connecting column, the connecting column is fixedly connected with the bottom surface of the lifting plate at the end away from the liquid blocking ball, the bottom surface of the lifting plate is fixedly connected with a spring, and the end of the spring away from the lifting plate is fixedly connected to the upper surface of the liquid storage cylinder.

[0012] Preferably, the bottom surface of the lifting plate is fixedly connected with a toothed plate and a sleeve, the bottom end of the sleeve is in contact with the upper surface of the liquid storage cylinder, and the spring is located in the interior of the sleeve.

[0013] Preferably, the driving mechanism comprises a double-shaft motor mounted on the upper surface of the shell, both output ends of the double-shaft motor are fixedly connected with driving shafts, the upper surface of the shell is fixedly connected with two symmetrical support plates, the ends of the two driving shafts away from each other are rotatably connected to the interiors of the two support plates, the outer surfaces of the two driving shafts are fixedly connected with a plurality of incomplete gears, and the incomplete gears are in mesh with the toothed plate.

[0014] Preferably, a driven shaft is rotatably arranged in the interior of the shell, the outer surface of the driven shaft is fixedly connected with two second synchronous wheels, the outer surfaces of the two driving shafts are fixedly connected with first synchronous wheels, and the first synchronous wheels and the second synchronous wheels are drivingly connected by a synchronous belt.

[0015] Preferably, the outer surface of the driven shaft is fixedly connected with a plurality of first bevel gears, the outer surface of each stirring shaft is fixedly connected with a second bevel gear, and the second bevel gear is engaged with the first bevel gear.

[0016] Preferably, the top of each liquid storage cylinder is fixedly connected with a liquid adding pipe, and a pipe cover is threadedly connected to each liquid adding pipe.

[0017] The method of the ecological dam device for self-purification of water quality comprises the following steps: when water flows through the water quality purification device, the water quality purification box first performs preliminary purification on the water flow, then a double-shaft motor is started, the double-shaft motor drives two driving shafts to rotate, the driving shafts drive the incomplete gears to rotate correspondingly, the incomplete gears drive the toothed plates to move upwards, the toothed plates drive the lifting plates and the liquid blocking balls to move upwards and lengthen the springs, the liquid blocking balls move upwards and leak out of the openings at the top of the liquid spraying pipes, so that the purified liquid in the liquid storage cylinders flows into the liquid spraying pipes, and then is sprayed into the water flow in the rectangular frame, thereby further purifying the water quality; when the incomplete gears are not in contact with the toothed plates, the toothed plates and the liquid blocking balls move downwards to the reset position under the action of the springs, at this time, the liquid blocking balls block the purified liquid in the liquid storage cylinders, so that the automatic interval spraying of the purified liquid is realized, thereby saving the purified liquid under the premise of ensuring the comprehensive mixing of the water flow and the purified liquid; while spraying the purified liquid, the driven shaft also drives the plurality of stirring shafts to rotate synchronously, the stirring shafts drive the stirring blades to rotate correspondingly, the stirring blades rotate and stir the water flow in the rectangular frame, thereby realizing the stirring and mixing of the water flow and the purified liquid while spraying the purified liquid, and effectively improving the mixing effect of the water flow and the purified liquid.

[0018] The beneficial effects of the present application are as follows:

[0019] 1. The water quality purification device and the dam main body are combined, the water flow is preliminarily purified by the purification box when the water flow passes through the dam main body, the purified liquid is sprayed into the preliminarily purified water flow by the liquid spraying mechanism, and the water flow is stirred at the same time, so that the mixing effect of the water flow and the purified liquid is improved, thereby realizing the comprehensive mixing of the water flow and the purified liquid, ensuring the purification effect of the water quality, and greatly reducing the workload without changing the position of the water quality purification device.

[0020] 2. The automatic interval spraying of the purified liquid is realized by the cooperation of the lifting plates, the springs, the sleeves, the toothed plates, the incomplete gears, the connecting columns and the lifting plates, so that the purified liquid is effectively saved under the premise of ensuring the comprehensive mixing of the water flow and the purified liquid. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1It is a perspective view of the ecological dam of the present application;

[0022] Figure 2 It is a sectional view of the present application;

[0023] Figure 3 It is a perspective view of the ecological dam of the present application;

[0024] Figure 4 It is a perspective view of the ecological dam of the present application;

[0025] Figure 5 It is a perspective view of the ecological dam of the present application;

[0026] Figure 6 It is a perspective view of the ecological dam of the present application;

[0027] In the figure: 1, dam body; 2, rectangular frame; 3, partition; 4, purification tank body; 5, mounting plate; 6, shell; 7, double-shaft motor; 8, support plate; 9, driving shaft; 10, driven shaft; 11, first synchronous wheel; 12, first bevel gear; 13, second bevel gear; 14, stirring shaft; 15, stirring blade; 16, U-shaped frame; 17, liquid storage cylinder; 18, support column; 19, liquid filling pipe; 20, liquid blocking ball; 21, connecting column; 22, lifting plate; 23, toothed plate; 24, incomplete gear; 25, spring; 26, sleeve; 27, liquid spraying pipe; 28, second synchronous wheel. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0029] An ecological dam device for self-purification of water quality, as shown in Figures 1-3 The ecological dam device for self-purification of water quality, as shown in

[0030] The ecological dam device for self-purification of water quality, as shown in Figures 1-3As shown in the figure, the water purification tank includes a purification tank body 4, a rectangular groove is opened at the top of the rectangular frame 2 for the purification tank body 4 to pass through, and the bottom of the purification tank body 4 penetrates through the rectangular groove and is in contact with the inner bottom wall of the rectangular frame 2, the top of the purification tank body 4 is fixedly connected with a mounting plate 5, the mounting plate 5 is installed on the top of the rectangular frame 2 by screws, the purification tank body 4 uses the physical blocking effect of the filter element to intercept solid impurities, microorganisms and macromolecular substances in water to achieve preliminary purification, and then uses the strong adsorption capacity of activated carbon to adsorb organic matter, odor and part of heavy metal ions in water to improve the purity of water quality. After the screws are unscrewed from the mounting plate 5, the purification tank body 4 can be taken out from the rectangular frame 2 for cleaning.

[0031] As shown in Figure 2 , Figure 3 and Figure 5 , a medicine spraying mechanism is arranged on one side of the water purification tank, the medicine spraying mechanism includes a U-shaped frame 16 and a plurality of liquid storage cylinders 17 arranged at equal distances, the U-shaped frame 16 is fixedly connected to the upper surface of the rectangular frame 2, two support columns 18 are fixedly connected to the outer surface of each liquid storage cylinder 17, and the ends of the support columns 18 away from the liquid storage cylinders 17 are fixedly connected to the upper surface of the U-shaped frame 16. The bottom of each liquid storage cylinder 17 is fixedly connected with a liquid spraying pipe 27, and the end of the liquid spraying pipe 27 away from the liquid storage cylinder 17 penetrates through the U-shaped frame 16 and is inserted into the interior of the rectangular frame 2. The liquid storage cylinder 17 is made of transparent material to facilitate the staff to check the capacity of the purification liquid inside the liquid storage cylinder 17.

[0032] As shown in Figure 3 , Figure 5 and Figure 6 , the liquid blocking assembly includes a liquid blocking ball 20 and a lifting plate 22, the top of the liquid blocking ball 20 is fixedly connected with a connecting column 21, the end of the connecting column 21 away from the liquid blocking ball 20 penetrates through the liquid storage cylinder 17 and is fixedly connected with the bottom surface of the lifting plate 22, the bottom surface of the lifting plate 22 is fixedly connected with a spring 25, the end of the spring 25 away from the lifting plate 22 is fixedly connected to the upper surface of the liquid storage cylinder 17, and the outer diameter of the liquid blocking ball 20 is matched with the inner diameter of the liquid spraying pipe 27. In the initial state, the liquid blocking ball 20 is clamped at the connection between the liquid storage cylinder 17 and the liquid spraying pipe 27, at this time the liquid blocking ball 20 can block the purification liquid inside the liquid storage cylinder 17, and when the liquid blocking ball 20 moves upward to the inside of the liquid storage cylinder 17, the purification liquid inside the liquid storage cylinder 17 will flow into the inside of the liquid spraying pipe 27, and then be sprayed in the water flow inside the rectangular frame 2 through the liquid spraying pipe 27.

[0033] As shown in Figure 5 and Figure 6As shown, the bottom surface of the lifting plate 22 is fixedly connected with a toothed plate 23 and a sleeve 26, the toothed plate 23 is located at one side of the liquid storage cylinder 17, the bottom end of the sleeve 26 is in contact with the upper surface of the liquid storage cylinder 17, and the spring 25 is located inside the sleeve 26, the sleeve 26 can shield and protect the spring 25, so as to reduce the probability of rusting and damaging the spring 25.

[0034] As shown in the Figures 2-4 As shown, the top of the rectangular frame 2 is fixedly connected with a shell 6, a plurality of stirring shafts 14 are rotatably installed between the shell 6 and the inner bottom wall of the rectangular frame 2, the outer surface of each stirring shaft 14 is fixedly connected with a plurality of stirring blades 15, the shell 6 is provided with a driving assembly, the driving assembly is used for driving the plurality of stirring shafts 14 to rotate and the plurality of liquid blocking assemblies to move upward, the driving mechanism includes a double-shaft motor 7 installed on the upper surface of the shell 6, the two output ends of the double-shaft motor 7 are fixedly connected with driving shafts 9, the upper surface of the shell 6 is fixedly connected with two symmetrical support plates 8, the ends of the two driving shafts 9 away from each other are rotatably connected inside the two support plates 8, the outer surfaces of the two driving shafts 9 are fixedly connected with a plurality of incomplete gears 24, the incomplete gears 24 are meshed with the toothed plate 23, and the incomplete gears 24 correspond one-to-one with the toothed plate 23, starting the double-shaft motor 7, the double-shaft motor 7 can drive the two driving shafts 9 to rotate, the driving shafts 9 rotating can drive the incomplete gears 24 to rotate correspondingly, the incomplete gears 24 rotating can drive the toothed plate 23 to move upward, the toothed plate 23 moving can drive the lifting plate 22, the liquid blocking balls 20 and the like to move upward and lengthen the spring 25, the liquid blocking balls 20 moving upward can leak out of the opening at the top of the liquid spraying pipe 27, so that the purified liquid in the interior of the liquid storage cylinder 17 flows into the interior of the liquid spraying pipe 27, and then is sprayed in the water flow inside the rectangular frame 2 through the liquid spraying pipe 27, achieving purification of the water quality, and when the incomplete gears 24 rotate to be not in contact with the toothed plate 23, the toothed plate 23 and the liquid blocking balls 20 and the like will move downward to reset under the action of the spring 25, at this time, the liquid blocking balls 20 can block the purified liquid in the interior of the liquid storage cylinder 17, so that automatic interval spraying of the purified liquid is achieved, thereby effectively saving the purified liquid on the premise of ensuring comprehensive mixing of the water flow and the purified liquid.

[0035] As shown in the Figure 2 and Figure 4 The interior of the shell 6 is rotatably installed with a driven shaft 10, the outer surface of the driven shaft 10 is fixedly connected with two second synchronous wheels 28, the outer surfaces of the two driving shafts 9 are fixedly connected with first synchronous wheels 11, and the first synchronous wheels 11 and the second synchronous wheels 28 are drivingly connected through a synchronous belt, the interior of the shell 6 is provided with a notch matched with the synchronous belt, under the action of the first synchronous wheels 11, the second synchronous wheels 28 and the synchronous belt, the driving shafts 9 rotating can drive the driven shaft 10 to rotate correspondingly.

[0036] As shown in the Figure 2 andFigure 4 As shown, the outer surface of the driven shaft 10 is fixedly connected with a plurality of first bevel gears 12, the outer surface of each stirring shaft 14 is fixedly connected with a second bevel gear 13, and the second bevel gear 13 is engaged with the first bevel gear 12, and the second bevel gear 13 corresponds to the first bevel gear 12 one by one. Under the action of the first bevel gear 12 and the second bevel gear 13, the driven shaft 10 can drive the plurality of stirring shafts 14 to rotate synchronously while rotating, and the stirring shaft 14 can drive the stirring blade 15 to rotate correspondingly, and the stirring blade 15 rotates to stir the water flow in the rectangular frame 2, thereby realizing the stirring and mixing of the water flow and the purification liquid while spraying the purification liquid, and effectively improving the mixing effect of the water flow and the purification liquid.

[0037] As shown in the figure, Figure 5 As shown, the top of each liquid storage cylinder 17 is fixedly connected with a liquid adding pipe 19, and the pipe cover is threadedly connected with each liquid adding pipe 19. After the pipe cover is unscrewed from the liquid adding pipe 19, the purification liquid can be added to the inside of the liquid storage cylinder 17.

[0038] Working principle: when the water flow passes through the water quality purification device, the water quality purification tank will first purify the water flow, and then the double-shaft motor 7 is started, which can drive the two driving shafts 9 to rotate, and the driving shaft 9 can drive the incomplete gear 24 to rotate correspondingly, and the incomplete gear 24 can drive the toothed plate 23 to move upwards, and the toothed plate 23 can drive the lifting plate 22, the liquid blocking ball 20 and the like to move upwards and lengthen the spring 25. When the liquid blocking ball 20 moves upwards, it can leak out of the opening at the top of the liquid spraying pipe 27, so that the purification liquid in the liquid storage cylinder 17 flows into the liquid spraying pipe 27, and then is sprayed into the water flow in the rectangular frame 2, thereby realizing further purification of the water quality. When the incomplete gear 24 rotates to be not in contact with the toothed plate 23, the toothed plate 23 and the liquid blocking ball 20 and the like will move downward to reset under the action of the spring 25. At this time, the liquid blocking ball 20 can block the purification liquid in the liquid storage cylinder 17, so that automatic interval spraying of the purification liquid can be realized, thereby effectively saving the purification liquid under the premise of ensuring the overall mixing of the water flow and the purification liquid. At the same time of spraying the purification liquid, the driven shaft 10 can also drive the plurality of stirring shafts 14 to rotate synchronously, and the stirring shaft 14 can drive the stirring blade 15 to rotate correspondingly, and the stirring blade 15 rotates to stir the water flow in the rectangular frame 2, thereby realizing the stirring and mixing of the water flow and the purification liquid while spraying the purification liquid, and effectively improving the mixing effect of the water flow and the purification liquid.

[0039] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0040] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will fall within the protection scope of the present application.

Claims

1. An ecological dam device for self-purification of water quality, comprising a dam main body (1) and a water quality purification device, characterized in that, The water purification device includes a rectangular frame (2) with two open sides, which is installed inside the dam body (1), a plurality of equally spaced partition plates (3) are fixedly connected inside the rectangular frame (2), water purification boxes are arranged between the inner wall of the rectangular frame (2) and the partition plates (3) and between adjacent two partition plates (3), and one side of the water purification box is provided with a pesticide spraying mechanism. The pesticide spraying mechanism includes a U-shaped frame (16) and a plurality of equally spaced liquid storage cylinders (17), the U-shaped frame (16) is fixedly connected to the upper surface of the rectangular frame (2), two support columns (18) are fixedly connected to the outer surface of each liquid storage cylinder (17), one end of the support column (18) away from the liquid storage cylinder (17) is fixedly connected to the upper surface of the U-shaped frame (16), a liquid spraying pipe (27) is fixedly and communicatively connected to the bottom of each liquid storage cylinder (17), one end of the liquid spraying pipe (27) away from the liquid storage cylinder (17) penetrates the U-shaped frame (16) and is inserted into the inside of the rectangular frame (2), and a liquid blocking assembly is arranged on the upper surface of each liquid storage cylinder (17). A shell (6) is fixedly connected to the top of the rectangular frame (2), a plurality of equally spaced stirring shafts (14) are rotatably installed between the shell (6) and the inner bottom wall of the rectangular frame (2), a plurality of stirring blades (15) are fixedly connected to the outer surface of each stirring shaft (14), a driving assembly is arranged on the shell (6) and used for driving the plurality of stirring shafts (14) to rotate and the plurality of liquid blocking assemblies to move upward.

2. The ecological dam device for self-purification of water quality according to claim 1, characterized in that The water purification box includes a purification box body (4), a rectangular groove is formed in the top of the rectangular frame (2) and used for allowing the purification box body (4) to pass through, one end of the purification box body (4) penetrates the rectangular groove and is in contact with the inner bottom wall of the rectangular frame (2), an installation plate (5) is fixedly connected to the top of the purification box body (4), and the installation plate (5) is installed on the top of the rectangular frame (2) through screws.

3. The ecological dam device for self-purification of water quality according to claim 2, characterized in that The liquid blocking assembly includes a liquid blocking ball (20) and a lifting plate (22), a connecting column (21) is fixedly connected to the top of the liquid blocking ball (20), one end of the connecting column (21) away from the liquid blocking ball (20) penetrates the liquid storage cylinder (17) and is fixedly connected to the bottom surface of the lifting plate (22), a spring (25) is fixedly connected to the bottom surface of the lifting plate (22), and one end of the spring (25) away from the lifting plate (22) is fixedly connected to the upper surface of the liquid storage cylinder (17).

4. The ecological dam device for self-purification of water quality according to claim 3, characterized in that The bottom surface of the lifting plate (22) is fixedly connected to a toothed plate (23) and a sleeve (26), the bottom end of the sleeve (26) is in contact with the upper surface of the liquid storage cylinder (17), and the spring (25) is located in the inside of the sleeve (26).

5. The ecological dam device for self-purification of water quality according to claim 4, characterized in that The driving assembly comprises a double-shaft motor (7) mounted on the upper surface of the shell (6), both output ends of the double-shaft motor (7) are fixedly connected with driving shafts (9), the upper surface of the shell (6) is fixedly connected with two symmetrical supporting plates (8), the inner parts of the two supporting plates (8) are respectively rotationally connected with the ends of the driving shafts (9) away from each other, the outer surfaces of the driving shafts (9) are fixedly connected with a plurality of incomplete gears (24), and the incomplete gears (24) are in mesh with toothed plates (23).

6. The ecological dam device for self-purification of water quality according to claim 5, characterized in that A driven shaft (10) is rotationally mounted in the shell (6), the outer surface of the driven shaft (10) is fixedly connected with two second synchronous wheels (28), the outer surfaces of the driving shafts (9) are fixedly connected with first synchronous wheels (11), and the first synchronous wheels (11) and the second synchronous wheels (28) are transmissionally connected through synchronous belts.

7. The ecological dam device for self-purification of water quality according to claim 6, characterized in that The outer surface of the driven shaft (10) is fixedly connected with a plurality of first bevel gears (12), the outer surface of each stirring shaft (14) is fixedly connected with a second bevel gear (13), and the second bevel gear (13) is in mesh with the first bevel gear (12).

8. The ecological dam device for self-purification of water quality according to claim 7, characterized in that The top of each liquid storage cylinder (17) is fixedly connected with a liquid adding pipe (19), and a pipe cover is threadedly connected to each liquid adding pipe (19).

9. The method of claim 8, wherein the water quality self-purification ecological dam device is characterized by: When the water flows through the water quality purifying device, the water quality purifying box first performs preliminary purification on the water flow, then the double-shaft motor (7) is started, the double-shaft motor (7) drives the two driving shafts (9) to rotate, the driving shafts (9) drive the incomplete gears (24) to rotate correspondingly, the incomplete gears (24) drive the toothed plates (23) to move upwards, the toothed plates (23) drive the lifting plates (22) and the liquid blocking balls (20) to move upwards and lengthen the springs (25), the liquid blocking balls (20) move upwards and leak out of the openings at the top of the liquid spraying pipes (27), so that the purified liquid in the liquid storage cylinders (17) flows into the liquid spraying pipes (27), and then is sprayed into the water flow in the rectangular frame (2), thereby further purifying the water quality, when the incomplete gears (24) are not in contact with the toothed plates (23), the toothed plates (23) and the liquid blocking balls (20) move downwards to reset under the action of the springs (25), at this time, the liquid blocking balls (20) block the purified liquid in the liquid storage cylinders (17), so that the automatic interval spraying of the purified liquid is realized, thereby saving the purified liquid under the premise of ensuring the overall mixing of the water flow and the purified liquid, while spraying the purified liquid, the driven shaft (10) also drives the plurality of stirring shafts (14) to rotate synchronously, the stirring shafts (14) drive the stirring blades (15) to rotate correspondingly, the stirring blades (15) rotate and stir the water flow in the rectangular frame (2), thereby realizing the stirring and mixing of the water flow and the purified liquid while spraying the purified liquid, and effectively improving the mixing effect of the water flow and the purified liquid.

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