Sewage discharge device for water conservancy project

Abstract

The invention relates to the technical field of hydraulic engineering, and discloses a sewage discharge device for hydraulic engineering, which comprises a main body, and the left side of the main body is fixedly connected with a water inlet pipe. When the flowing speed of sewage is reduced, a sliding plate is reset under the release of elastic potential energy of a reset spring, and when the sliding plate is reset, sewage in a water storage cavity can be pushed, so that the sewage can impact the surface of a conical barrel under the pushing of reset of the sliding plate, and reverse impact is formed on the conical barrel; impurities attached to the inner wall of the conical barrel can be separated from the inner wall of the conical barrel under the impact of reverse sewage through the reverse impact of the sewage on the conical barrel, the situation that frequent cleaning is needed due to the fact that the discharging flow speed is decreased after blockage occurs during sewage discharging is reduced, the stability during sewage discharging is ensured, and the sewage discharging efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a sewage discharge device for water conservancy projects. Background Technology

[0002] Hydraulic engineering projects are engineering works constructed to control and regulate surface water and groundwater in nature to achieve the goals of mitigating harm and promoting benefits. They are also called water engineering projects. Water is a precious resource essential for human production and life, but its natural state does not fully meet human needs. Only by constructing hydraulic engineering projects can water flow be controlled, floods prevented, and water volume regulated and distributed to meet the water needs of people's lives and production. Hydraulic engineering projects require the construction of various types of hydraulic structures such as dams, dikes, spillways, sluice gates, intakes, canals, ferries, raft channels, and fishways to achieve their objectives. When discharging sewage, because sewage contains a lot of impurities, a baffle plate is usually installed inside the sewage pipe to intercept the impurities. When a large amount of sewage is discharged, the impurities in the sewage will adhere to the baffle plate, which can easily cause the baffle plate to become clogged. This requires frequent manual cleaning during discharge and also affects the sewage discharge speed and efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a sewage discharge device for water conservancy projects to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a sewage discharge device for water conservancy projects, comprising a main body, an inlet pipe fixedly connected to the left side of the main body, and further comprising; A connecting mechanism is installed on the side wall of the main body to intercept impurities in the sewage during sewage discharge. An auxiliary mechanism is installed on the side wall of the connecting mechanism to prevent sediment from settling during wastewater discharge. When sewage flows outward through the main body, the connecting mechanism can intercept impurities in the sewage to reduce the possibility of blockage during discharge. At the same time, the auxiliary mechanism can prevent sediment from settling due to slow local discharge speed when the connecting mechanism intercepts impurities.

[0005] Furthermore, the main body includes: The emission assembly is installed on the side wall of the main body.

[0006] Furthermore, the connecting mechanism includes a central rod disposed inside the emission assembly, and the connecting mechanism also includes: The sliding assembly is mounted on the side wall of the central rod; The movable assembly is mounted on the side wall of the sliding assembly.

[0007] Further, the auxiliary mechanism comprises: The moving assembly is mounted on the outer wall of the movable assembly; The rotating assembly is mounted on the inside of the discharge assembly.

[0008] Further, the discharge assembly comprises a discharge pipe bolted to the side of the main body away from the water inlet pipe, the inside of the discharge pipe is fixedly connected with a fixed ring, and the inner wall of the fixed ring is fixedly connected with a horizontal plate.

[0009] Further, the central rod is fixedly connected to the side wall of the horizontal plate; The sliding assembly comprises a sliding plate slidingly connected to the outer surface of the central rod, and the side wall of the sliding plate is provided with a plurality of circular holes; The side of the sliding plate close to the fixed ring is fixedly connected with a return spring, and the end of the return spring away from the sliding plate is fixedly connected with the side wall of the fixed ring; The inside of the discharge pipe is rotatably connected with a conical cylinder, and the side of the conical cylinder close to the sliding plate is fixedly connected with a fan plate; The central rod is rotatably penetrated into the inside of the conical cylinder, and the outer surface of the conical cylinder is provided with a plurality of water outlet grooves.

[0010] Further, the movable assembly comprises two connecting blocks arranged in the inside of the conical cylinder, and one of the connecting blocks is fixedly connected with the central rod; The side wall of one of the connecting blocks is fixedly connected with two long rods, and the two long rods are slidingly penetrated into the side wall of the other connecting block; The two connecting blocks are sleeved with a ring spring.

[0011] Further, the side of the connecting block away from the ring spring is fixedly connected with a connecting lug, the side wall of the connecting lug is rotatably connected with a semicircular pipe, and the side wall of the semicircular pipe is fixedly connected with a plurality of inclined plates; The plurality of inclined plates are arranged at equal distances.

[0012] Further, the moving assembly comprises rotating plates rotatably connected to the outer walls of the top and bottom of the connecting block, and the end of the four rotating plates away from the connecting block is rotatably connected with a curved ring; The rotating assembly comprises three limiting plates fixedly connected to the inner wall of the discharge pipe, the side wall of the limiting plate is rotatably penetrated with a short shaft, the side of the short shaft close to the conical cylinder is fixedly connected with a roller, and the outer surface of the roller is in contact with the side wall of the conical cylinder.

[0013] Further, the short shaft is fixedly connected with a curved plate at one end away from the roller, the curved plate is rotatably connected with a connecting rod at one end away from the short shaft, and the connecting rod is rotatably connected with a C-shaped block at one end away from the curved plate. The C-shaped block is rotatably connected with the side wall of the sliding plate at one end away from the connecting rod.

[0014] The present application has the following beneficial effects: 1、The present application, through the sliding assembly, when the flow speed of the sewage decreases, the sliding plate resets under the release of the elastic potential energy of the reset spring, and when the sliding plate resets, the sewage in the water storage cavity is pushed, so that the sewage can impact the surface of the conical cylinder under the pushing of the resetting of the sliding plate, and form a reverse impact on the conical cylinder, and the reverse impact of the sewage on the conical cylinder can separate the impurities attached to the inner wall of the conical cylinder under the impact of the reverse sewage, reduce the situation that the discharge flow rate decreases and needs to be cleaned frequently after the sewage is blocked during discharge, ensure the stability of the sewage discharge, and improve the discharge efficiency of the sewage.

[0015] 2、The present application, through the movable assembly and the sliding assembly, when part of the sewage flows between the two semicircular pipes, the branch water flow of the front and rear branches flowing between the two semicircular pipes will form a reverse convergence with the main flow between the two semicircular pipes, at this time, the water flow flowing normally through the semicircular pipe will slow down, the flow rate of the sewage flowing through the conical cylinder is slowed down, the starting flow rate of the sewage is reduced, the situation that the impurities are difficult to separate from the inner wall of the conical cylinder due to the high starting flow rate of the sewage is reduced, the separation speed of the impurities is improved, and the discharge efficiency of the sewage flow is further improved.

[0016] 3、The present application, through the moving assembly and the sliding assembly, when the sewage flows through the surface of the curved ring, part of the sewage will be guided by the curvature of the curved ring to produce a reverse backflow, the impurities entering the inside of the conical cylinder are impacted to the inside of the main body in the reverse direction through the reverse backflow formed in the sewage, the impurities in the sewage are prevented from gathering in the inside of the conical cylinder during flow, so that the situation that the impurities separated from the side wall of the conical cylinder and the impurities in the remaining sewage gather and stay in the conical cylinder is reduced, the situation that the impurities are difficult to separate from the conical cylinder due to the continuous gathering of the impurities is reduced, the cleaning efficiency of the impurities is further improved, and the stability of the discharge is further improved.

[0017] 4、The application, when the flow of water flow pushes the sliding plate to slide, the sliding of the sliding plate will stretch the curved plate through the connecting rod, so that the curved plate is in a horizontal state, then when the water flow impacts the conical cylinder to drive the conical cylinder to rotate, the rotation of the conical cylinder will drive the curved plate to rotate through the friction between the roller, when the curved plate rotates, it will disturb the water flow inside the water storage cavity, the disturbance of the curved plate to the sewage flow can reduce the situation that the silt in the sewage is deposited in the water storage cavity when the sewage slowly flows under the blockage of the curved plate, reduce the situation that the discharge channel of the sewage is reduced due to the deposition of silt, reduce the situation that the reverse resistance is caused when the reverse water is flushed, ensure the stability of the sewage flow pressure and resistance, improve the discharge efficiency.

[0018] Of course, implementing any product of the present application does not necessarily require all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The whole structure of the present application is shown in the schematic diagram. Figure 2 The whole local section structure of the present application is shown in the schematic diagram. Figure 3 The whole internal structure of the present application is shown in the schematic diagram. Figure 2 The enlarged schematic diagram of A in the present application is shown in the schematic diagram. Figure 4 The whole internal structure of the present application is shown in the schematic diagram. Figure 5 The sliding assembly of the present application is shown in the schematic diagram. Figure 6 The moving assembly of the present application is shown in the schematic diagram. Figure 7 The side structure of the moving assembly of the present application is shown in the schematic diagram. Figure 8 The rotating assembly of the present application is shown in the schematic diagram.

[0021] In the drawings, the components represented by each number are listed as follows: As shown in the figure, 1, the main body; 101, the water inlet pipe; 11, the discharge assembly; 111, the discharge pipe; 112, the fixed ring; 113, the cross plate; 2, the connecting mechanism; 201, the center rod; 21, the sliding assembly; 211, the sliding plate; 212, the conical cylinder; 213, the fan plate; 22, the movable assembly; 221, the connecting block; 222, the connecting lug; 223, the semicircular pipe; 224, the inclined plate; 3, the auxiliary mechanism; 31, the moving assembly; 311, the rotating plate; 312, the curved ring; 32, the rotating assembly; 321, the limiting plate; 322, the roller; 323, the curved plate; 324, the connecting rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0023] Please refer to Figure 1 - Figure 8 As shown in the figure, the present application is a sewage discharge device for water conservancy projects, which comprises a main body 1, a water inlet pipe 101 fixedly connected to the left side of the main body 1, and a connecting mechanism 2 installed on the side wall of the main body 1, used for intercepting impurities in sewage during sewage discharge; an auxiliary mechanism 3 installed on the side wall of the connecting mechanism 2, used for preventing sedimentation during sewage discharge; When the sewage flows outward through the main body 1, the connecting mechanism 2 can intercept impurities in the sewage to reduce the blockage of impurities during discharge, and the auxiliary mechanism 3 can prevent sedimentation due to slow local discharge speed when the connecting mechanism 2 intercepts impurities.

[0024] The main body 1 comprises: a discharge assembly 11 installed on the side wall of the main body 1.

[0025] The connecting mechanism 2 comprises a center rod 201 installed inside the discharge assembly 11, and the connecting mechanism 2 further comprises: a sliding assembly 21 installed on the side wall of the center rod 201; a movable assembly 22 installed on the side wall of the sliding assembly 21.

[0026] The auxiliary mechanism 3 comprises: a moving assembly 31 installed on the outer wall of the movable assembly 22; The rotating assembly 32 is arranged inside the discharging assembly 11.

[0027] The discharging assembly 11 comprises a discharging pipe 111 which is bolted to the main body 1 away from the water inlet pipe 101. The inner side of the discharging pipe 111 is fixedly connected with a fixing ring 112, and the inner wall of the fixing ring 112 is fixedly connected with a horizontal plate 113. First, the discharging pipe 111 is connected with the valve device outside. Then, when the sewage pretreated in the main body 1 is discharged, the valve is opened to make the main body 1 communicate with the discharging pipe 111, and the sewage in the main body 1 is discharged outside through the discharging pipe 111.

[0028] The central rod 201 is fixedly connected to the side wall of the horizontal plate 113. The sliding assembly 21 comprises a sliding plate 211 which is slidingly connected to the outer surface of the central rod 201. The side wall of the sliding plate 211 is provided with a plurality of circular holes. The side of the sliding plate 211 close to the fixing ring 112 is fixedly connected with a return spring, and the end of the return spring away from the sliding plate 211 is fixedly connected with the side wall of the fixing ring 112. The inner side of the discharging pipe 111 is rotatably connected with a conical cylinder 212, and the side of the conical cylinder 212 close to the sliding plate 211 is fixedly connected with a fan plate 213. The central rod 201 is rotatably penetrated into the inner side of the conical cylinder 212, and the outer surface of the conical cylinder 212 is provided with a plurality of water outlets. When a large amount of sewage flows outside through the discharging pipe 111, the sewage flows outside through the surface of the conical cylinder 212. When the sewage flows through the conical cylinder 212, the impurities in the sewage are intercepted by the conical cylinder 212 due to the small holes on the surface of the sliding plate 211.

[0029] The movable assembly 22 comprises two connecting blocks 221 arranged in the conical cylinder 212. One of the connecting blocks 221 is fixedly connected with the central rod 201. The side wall of one of the connecting blocks 221 is fixedly connected with two long rods which are slidingly penetrated into the side wall of the other connecting block 221. The two connecting blocks 221 are sleeved with a ring spring. When a large amount of sewage flows through the water outlets on the surface of the conical cylinder 212, the flow of the sewage impacts the two semicircular pipes 223, and the semicircular pipes 223 rotate on the surface of the connecting ears 222 when impacted.

[0030] The side of the connecting block 221 away from the ring spring is fixedly connected with a connecting ear 222, the side wall of the connecting ear 222 is rotatably connected with a semicircular pipe 223, and the side wall of the semicircular pipe 223 is fixedly connected with a plurality of inclined plates 224. The plurality of inclined plates 224 are arranged at equal distances, and when sewage impacts the semi-circular pipes 223, the sewage will impact the plurality of inclined plates 224 on the side walls of the two semi-circular pipes 223 through the flared portion at the front end of the semi-circular pipes 223.

[0031] The moving assembly 31 comprises rotating plates 311 rotatably connected to the top and bottom outer walls of the connecting block 221, and the ends of the four rotating plates 311 away from the connecting block 221 are rotatably connected with curved rings 312. The rotating assembly 32 comprises three limiting plates 321 fixedly connected to the inner wall of the discharge pipe 111, the side walls of the limiting plates 321 are rotatably penetrated by short shafts, the short shafts are fixedly connected with rollers 322 on the side close to the conical cylinder 212, the outer surface of the roller 322 is in contact with the side wall of the conical cylinder 212, when the flow of water pushes the sliding plate 211 to slide, the sliding of the sliding plate 211 will stretch the curved plate 323 through the connecting rod 324, so that the curved plate 323 is in a horizontal state, and then when the water flow impacts the conical cylinder 212 to make it rotate, the rotation of the conical cylinder 212 will drive the curved plate 323 to rotate through the friction between them.

[0032] The ends of the short shafts away from the rollers 322 are fixedly connected with curved plates 323, the ends of the curved plates 323 away from the short shafts are rotatably connected with connecting rods 324, and the ends of the connecting rods 324 away from the curved plates 323 are rotatably connected with C-shaped blocks. The ends of the C-shaped blocks away from the connecting rods 324 are rotatably connected with the side walls of the sliding plates 211, when the curved plates 323 rotate, they will disturb the water flow inside the water storage cavity, and the disturbance of the curved plates 323 to the sewage flow can reduce the situation that the silt in the sewage deposits in the water storage cavity when the sewage slowly flows under the blockage of the curved plates 323.

[0033] All the orientation words in the text are subject to Figure 2 When in use, first, the discharge pipe 111 is connected with the valve equipment outside, and then when the pretreated sewage in the main body 1 is discharged, the valve is opened to make the main body 1 communicate with the discharge pipe 111, so that the sewage in the main body 1 is discharged outside through the discharge pipe 111, achieving the purpose of discharging the sewage outside.

[0034] When a large amount of sewage flows out through the discharge pipe 111, the sewage will flow outwards through the surface of the conical cylinder 212. When the sewage flows through the conical cylinder 212, due to the small holes on the surface of the sliding plate 211, the conical cylinder 212 will intercept impurities in the sewage while the sewage flows, and the sliding plate 211 will slide and compress the return spring behind it due to the pushing force generated by the flow of a large amount of sewage. At the same time, the fan plate 213 will drive the conical cylinder 212 to rotate under the flow of the water flow when the sewage flows through the surface of the conical cylinder 212. When the conical cylinder 212 rotates, it can dynamically intercept impurities in the sewage. When the sewage flow is normal, the water flow impacts the sliding plate 211 to make it slide and compress the return spring, and the water storage cavity is formed between the sliding plate 211 and the conical cylinder 212. Then, as the conical cylinder 212 surface intercepts a large amount of impurities due to the continuous discharge of sewage, the discharge speed of the sewage through the conical cylinder 212 will become slow, and the water flow through the conical cylinder 212 will decrease or even stop flowing. When the flow rate of the sewage decreases, the sliding plate 211 resets under the elastic potential energy released by the return spring. When the sliding plate 211 resets, it pushes the sewage in the water storage cavity, so that the sewage can impact the surface of the conical cylinder 212 under the push of the sliding plate 211 resetting, and form a reverse impact on the conical cylinder 212. Through the reverse impact of the sewage on the conical cylinder 212, the impurities attached to the inner wall of the conical cylinder 212 can be separated from the inner wall of the conical cylinder 212 under the impact of the reverse sewage, reducing the situation that the discharge flow rate needs to be cleaned frequently due to blockage during sewage discharge, ensuring the stability of sewage discharge, and improving the efficiency of sewage discharge.

[0035] When a large amount of sewage flows through the water outlet groove on the surface of the conical cylinder 212, the flow of sewage will impact the two semicircular pipes 223, and when the semicircular pipes 223 are impacted, they will rotate on the surface of the connecting lug 222. Through the flared end of the semicircular pipe 223, when the sewage impacts the semicircular pipe 223, the sewage will impact the multiple inclined plates 224 on the side walls of the two semicircular pipes 223. Since the multiple inclined plates 224 are inclined, when the sewage flows normally and impacts the inclined plates 224, the impact of the sewage will push the semicircular pipe 223 to rotate through the inclined plates 224. Since the semicircular pipe 223 is limited by the connecting lug 222 after rotating, when the sewage continues to flow through the inclined plates 224 to generate an outward pushing force on the semicircular pipe 223, the flow of sewage will drive the connecting block 221 to slide through the semicircular pipe 223. When the two semicircular pipes 223 are opened away from each other, through the inclined arrangement of the multiple inclined plates 224, when part of the sewage flows between the two semicircular pipes 223, the branch water flow flowing between the two semicircular pipes 223 will form a reverse convergence with the main flow between the two semicircular pipes 223. At this time, the flow rate of the water flowing normally through the semicircular pipe 223 will slow down. By slowing down the flow rate of the sewage flowing through the conical cylinder 212, the starting flow rate of the sewage can be reduced, which can reduce the situation that the starting flow rate of the sewage is too fast to cause a large impact on the conical cylinder 212. The situation that the starting flow rate of the sewage is too fast to cause the impurities to be difficult to separate from the inner wall of the conical cylinder 212 due to the large adhesion strength of the impurities is reduced, the impurity separation speed is improved, and the discharge efficiency of the sewage flowing is further improved.

[0036] Since one of the connecting blocks 221 is fixed to the center rod 201, when the sewage pushes the semicircular pipe 223 to drive the connecting block 221 to slide, the connecting block 221 will slide on the surface of the long rod. At this time, the two connecting blocks 221 will slide in opposite directions and stretch the annular spring on the side wall. When the two connecting blocks 221 move away from each other, the two connecting blocks 221 will drive the curved ring 312 connected thereto to slide backward through the rotating plate 311.

[0037] When the conical cylinder 212 is blocked by impurities, the water flow inside the conical cylinder 212 will stop or flow slowly when the conical cylinder 212 is blocked, at this time the two connecting blocks 221 will reset under the action of the ring spring, when the two connecting blocks 221 reset, the curved ring 312 will be pushed forward by the rotating plate 311, when the curved ring 312 slides forward, it can slide in the sewage that flows slowly in the conical cylinder 212 due to blockage, because the side wall of the curved ring 312 has a certain curvature, when the sewage flows through the surface of the curved ring 312, part of the sewage will be guided by the curvature of the curved ring 312 to produce a reverse flow, by forming a reverse flow in the sewage, the impurities entering the inside of the conical cylinder 212 can be impacted in the opposite direction to the inside of the main body 1, reducing the situation that impurities in the sewage gather in the inside of the conical cylinder 212 when flowing, thereby reducing the situation that impurities separated from the conical cylinder 212 and impurities in the remaining sewage gather in the conical cylinder 212, reducing the situation that impurities are difficult to separate from the conical cylinder 212 due to continuous gathering of impurities, further enhancing the cleaning efficiency and stability of the reverse impact of impurities.

[0038] When the water flow pushes the sliding plate 211 to slide, the sliding of the sliding plate 211 will stretch the curved plate 323 through the connecting rod 324, so that the curved plate 323 is in a horizontal state, then when the water flow impacts the conical cylinder 212 to make it rotate, the rotation of the conical cylinder 212 will drive the curved plate 323 to rotate through the friction between the conical cylinder 212 and the roller 322, when the curved plate 323 rotates, it will disturb the water flow inside the water storage cavity, by disturbing the sewage flow when the curved plate 323 is blocked, the situation that the silt in the sewage deposits in the water storage cavity when the sewage flows slowly can be reduced, the situation that the discharge channel of the sewage is reduced due to the deposition of silt can be reduced, by reducing the deposition of silt, the situation that the reverse resistance is caused when the reverse water is discharged can also be reduced, ensuring the stability of the sewage flow pressure and resistance, improving the discharge efficiency.

[0039] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present application. The embodiments are selected and described in detail in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited by the claims and their entire scope and equivalents.

Claims

1. A sewage discharge device for water conservancy projects, comprising a main body (1), wherein an inlet pipe (101) is fixedly connected to the left side of the main body (1), characterized in that, Also includes; A connecting mechanism (2) is installed on the side wall of the main body (1) for intercepting impurities in the sewage when discharging sewage; Auxiliary mechanism (3) is installed on the side wall of the connecting mechanism (2) to prevent sediment from settling when discharging sewage; When sewage flows outward through the main body (1), the connecting mechanism (2) can intercept impurities in the sewage to reduce the situation of impurity blockage during discharge. At the same time, the auxiliary mechanism (3) can prevent the sedimentation of mud and sand due to the slow local discharge speed when the connecting mechanism (2) intercepts impurities.

2. The sewage discharge device for water conservancy projects according to claim 1, characterized in that: The main body (1) includes: The emission assembly (11) is installed on the side wall of the main body (1).

3. A sewage discharge device for water conservancy projects according to claim 2, characterized in that: The connecting mechanism (2) includes a central rod (201) disposed inside the discharge assembly (11), and the connecting mechanism (2) further includes: A sliding assembly (21) is mounted on the side wall of the central rod (201); The active component (22) is mounted on the side wall of the sliding component (21).

4. A sewage discharge device for water conservancy projects according to claim 3, characterized in that: The auxiliary mechanism (3) includes: A movable component (31) is mounted on the outer wall of the active component (22); Rotating assembly (32) is installed inside the discharge assembly (11).

5. A sewage discharge device for water conservancy projects according to claim 4, characterized in that: The discharge assembly (11) includes a discharge pipe (111) bolted to the side of the main body (1) away from the water inlet pipe (101), and a fixing ring (112) is fixedly connected inside the discharge pipe (111), and a cross plate (113) is fixedly connected to the inner wall of the fixing ring (112).

6. A sewage discharge device for water conservancy projects according to claim 5, characterized in that: The central rod (201) is fixedly connected to the side wall of the horizontal plate (113); The sliding assembly (21) includes a sliding plate (211) slidably connected to the outer surface of the central rod (201), and the side wall of the sliding plate (211) has a plurality of circular holes. A return spring is fixedly connected to the side of the sliding plate (211) near the fixed ring (112), and the end of the return spring away from the sliding plate (211) is fixedly connected to the side wall of the fixed ring (112). The discharge pipe (111) is rotatably connected to a conical cylinder (212), and a fan plate (213) is fixedly connected to the side of the conical cylinder (212) near the sliding plate (211). The central rod (201) rotates through the interior of the conical cylinder (212), and the outer surface of the conical cylinder (212) is provided with several water outlet grooves.

7. A sewage discharge device for water conservancy projects according to claim 6, characterized in that: The movable component (22) includes two connecting blocks (221) disposed inside the conical cylinder (212), one of which is fixedly connected to the central rod (201); Two long rods are fixedly connected to the side wall of one of the connecting blocks (221), and the two long rods slide through to the side wall of the other connecting block (221); A ring spring is sleeved between the two connecting blocks (221).

8. A sewage discharge device for water conservancy projects according to claim 7, characterized in that: The connecting block (221) is fixedly connected to a connecting ear (222) on the side away from the annular spring. A semi-circular tube (223) is rotatably connected to the side wall of the connecting ear (222). Several inclined plates (224) are fixedly connected to the side wall of the semi-circular tube (223). Several of the inclined plates (224) are arranged at equal intervals.

9. A sewage discharge device for water conservancy projects according to claim 8, characterized in that: The moving component (31) includes rotating plates (311) rotatably connected to the top and bottom outer walls of the connecting block (221), and a curved ring (312) is rotatably connected to one end of each of the four rotating plates (311) away from the connecting block (221). The rotating assembly (32) includes three limiting plates (321) fixedly connected to the inner wall of the discharge pipe (111). The side wall of the limiting plate (321) is rotatably connected to a short shaft. A roller (322) is fixedly connected to the side of the short shaft near the conical cylinder (212). The outer surface of the roller (322) is in contact with the side wall of the conical cylinder (212).

10. A sewage discharge device for water conservancy projects according to claim 9, characterized in that: A bending plate (323) is fixedly connected to the end of the short shaft away from the roller (322), and a connecting rod (324) is rotatably connected to the end of the bending plate (323) away from the short shaft. A C-shaped block is rotatably connected to the end of the connecting rod (324) away from the bending plate (323). The end of the C-shaped block away from the connecting rod (324) is rotatably connected to the side wall of the sliding plate (211).

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