Drainage simulation test device for municipal water supply and drainage design

Abstract

The invention discloses a drainage simulation test device for municipal water supply and drainage design, and relates to the technical field of urban water supply and drainage simulation.The drainage simulation test device comprises a sliding cylinder, a sliding groove is formed in the inner side of the sliding cylinder, a sliding arc plate is slidably mounted on the inner side of the sliding groove, and an extension arc plate is welded to the top end of the sliding arc plate; the device is scientific and reasonable in structure and safe and convenient to use, an extension plate is welded to the top end of an extension arc plate, a fixing rod is welded to the top end of the extension plate, the outer side of the fixing rod is rotationally sleeved with a lifting rod, a sliding arc plate is pulled upwards through the extension arc plate, and the extension plate is fixed to the top end of the extension plate. At the moment, a drainage port is formed between the sliding arc plate and the communication groove, then a water source in the collection cavity flows from the drainage port to the bottom of the communication groove, the drainage condition in the local direction can be simulated, and the reaction capacity of the drainage system for coping with inflow of a large amount of sewage in different directions is tested.

Description

Technical Field

[0001] This invention relates to the field of urban water supply and drainage simulation technology, specifically to a drainage simulation test device for municipal water supply and drainage design. Background Technology

[0002] The urban drainage simulation system is a digital management tool based on hydrodynamic principles and computer technology. Its core component, the drainage simulation device, constructs a simulation environment that combines physics and numerical data to achieve high-precision restoration and prediction of the operational status of the urban drainage system. This device can not only verify the rationality of the drainage system's design capacity and layout, but also assess the risk of urban flooding, optimize scheduling strategies, and practice emergency response under extreme weather conditions. Through the deep integration of hardware interaction and software calculation, the drainage simulation device provides scientific and intuitive decision support for urban drainage planning, sponge city construction, and flood control management, significantly improving the resilience management and intelligence level of infrastructure. For example, in the prior art, Chinese patent application number 202123380661.6, entitled "A Drainage Simulation Device for Municipal Water Supply and Drainage Design", can accurately simulate rainfall in the natural environment, thereby ensuring the accuracy of simulation test data. At the same time, it can realize the recycling of simulated rainwater, avoid waste of water resources, and is conducive to promotion. However, existing drainage simulation devices are difficult to accurately control the direction and flow of drainage from sewer wells, resulting in an inaccurate experimental database and difficulty in accurately verifying the stability of drainage devices. This leads to subsequent drainage designs failing to meet urban needs and causing flooding. To avoid the above-mentioned technical problems, it is indeed necessary to provide a drainage simulation test device for municipal water supply and drainage design to overcome the defects in the existing technology. Summary of the Invention

[0003] This invention provides a drainage simulation testing device for municipal water supply and drainage design, which can effectively solve the problem mentioned in the background art that the existing drainage simulation devices are difficult to accurately control the direction and flow of drainage from the sewer wells, resulting in an inaccurate experimental database, difficulty in accurately verifying the stability of the drainage device, and subsequent drainage design failing to meet urban needs, causing urban flooding.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a drainage simulation test device for municipal water supply and drainage design, comprising a sliding cylinder, wherein a control component is installed at the top of the sliding cylinder; The control component includes a sliding groove; The sliding cylinder has a sliding groove on its inner side, and a sliding arc plate is slidably installed on the inner side of the sliding groove. An extension arc plate is welded to the top of the sliding arc plate. A limit groove is opened at the top of the sliding cylinder. An extension plate is welded to the top of the extension arc plate. A fixing rod is welded to the top of the extension plate. A lifting rod is rotatably sleeved on the outer side of the fixing rod. A fixing groove is opened on the inner side of the lifting rod at a position corresponding to the fixing rod. A pull-locking groove is opened on the inner side of the lifting rod at a position symmetrical to the fixing groove. A support arm is welded to the outer side of the sliding cylinder. A mounting groove plate is welded to one end face of the support arm. A hydraulic cylinder is installed on the inner side of the mounting groove plate. A telescopic rod is connected to the telescopic end of the hydraulic cylinder. A pulling plate is welded to the bottom end of the telescopic rod. A locking pin is welded to the top end of the pulling plate. A water injection cylinder is sleeved on the outer side of the sliding arc plate, a collection chamber is opened on the inner side of the water injection cylinder, and a connecting groove is opened at the bottom end of the water injection cylinder.

[0005] Preferably, a water injection pipe is installed on the outside of the water injection cylinder, an electromagnetic control valve is installed on the outside of the water injection pipe, and a flow sensor is installed at the bottom of the inner side of the sliding cylinder.

[0006] Preferably, a plurality of sliding arc plates are provided, and the plurality of sliding arc plates are installed at equal angles on the inner side of the sliding groove.

[0007] Preferably, a plurality of limiting grooves are provided, and the plurality of limiting grooves are all provided at the top of the sliding cylinder and at the corresponding position of the extension arc plate, and the extension arc plate is slidably connected to the sliding cylinder through the limiting grooves.

[0008] Preferably, the inner diameter of the fixing groove is equal to the outer diameter of the fixing rod, and the contact surfaces of the fixing groove and the fixing rod are both smooth curved surfaces.

[0009] Preferably, there are several locking pins, the number of which is the same as the number of lifting rods, and the inner diameter of the pulling locking groove is equal to the outer diameter of the locking pin.

[0010] Preferably, there are several water injection pipes, which are installed at equal angles on the outer side of the water injection cylinder. The input ends of the electromagnetic control valve and the hydraulic cylinder are electrically connected to the output end of the external controller, and the data output end of the flow sensor is electrically connected to the input end of the external controller.

[0011] Preferably, a stabilizing component is installed at the bottom of the sliding cylinder; The stabilizing component includes a rotating base; A rotating seat is welded to the outside of the water injection cylinder, a rotating pin is welded to the inside of the rotating seat, an adjusting plate is rotatably sleeved on the outside of the rotating pin, a threaded rod is welded to one end of the adjusting plate, a threaded sleeve is threaded to the outside of the threaded rod, a nut is sleeved on the outside of the threaded sleeve, and an adjusting groove is opened on the inside of the adjusting plate. The threaded sleeve has a threaded extension chamber on its inner side, and a disc groove is provided at one end of the threaded sleeve. An adjusting disc is rotatably sleeved on the inner side of the disc groove. A stabilizing arm is welded to one end face of the adjusting disc, and a stabilizing rod is welded to one end of the stabilizing arm. A stabilizing seat is rotatably installed on the outer side of the stabilizing rod, and a stabilizing base plate is welded to one end of the stabilizing seat.

[0012] Preferably, the outer diameter of the rotating pin is equal to the inner diameter of the adjusting groove, and the rotating pin is rotatably connected to the adjusting plate through the adjusting groove.

[0013] Preferably, several rotating seats are provided, and the several rotating seats are welded at equal angles to the outer side of the water injection cylinder, and the inner diameter of the disc groove is equal to the outer diameter of the adjusting disc.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use. 1. The system is equipped with a sliding arc plate that can be pulled upwards by extending the arc plate. This creates a discharge port between the sliding arc plate and the connecting channel. Water from the collection chamber flows from the discharge port to the bottom of the connecting channel, simulating drainage in specific directions. This allows for testing the drainage system's ability to handle large influxes of sewage from different directions. Simultaneously opening the sliding arc plates at symmetrical locations simulates convective sewage flow, testing the sewage well's internal water flow management capabilities during heavy rain and preventing sewage accumulation. Furthermore, simulating severe rainstorms, all sliding arc plates can be opened to simulate the discharge of sufficient rainwater, testing the system's maximum drainage capacity. This allows for improvements to the bottom drainage system to prevent flooding during severe rainstorms. Accurate simulation of various water flow conditions in the sewage well helps designers design urban drainage systems precisely, ensuring the effectiveness and stability of urban sewage systems and providing accurate and effective simulation data for subsequent urban sewage system construction.

[0015] 2. A screw-in sleeve is installed. At this time, the adjusting disc at the top of the stabilizing arm will rotate inside the disc groove, and then the length of the screw sleeve and the screw rod will be continuously extended to stabilize the water injection cylinder. Then, all the stabilizing base plates are adjusted in sequence, so that the water injection cylinder can be processed to fit completely against the surface of the sewage well. Then, when the operator performs water volume simulation, the water flow direction is also simulated by adjusting the angle of the water injection cylinder. When there is a certain slope, the influence of the slope on the water flow acceleration is simulated, which accurately restores the sewage treatment capacity of sewage wells at different angles in reality during sewage discharge, and can further optimize the urban sewage system.

[0016] In summary, by simulating the discharge of sufficient rainwater to test the maximum drainage capacity of the drainage system, and then improving the drainage system at the bottom, the direction of water flow was also simulated by adjusting the angle of the water injection cylinder. The influence of slope on water flow acceleration was also simulated when there is a certain slope. This can help designers to accurately design urban drainage systems and ensure that the design of urban sewage systems can meet the sewage discharge requirements under various conditions. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0018] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the control component of the present invention; Figure 3 This is a schematic diagram of the installation structure of the extended arc plate of the present invention; Figure 4 This is a schematic diagram of the installation structure of the pull plate of the present invention; Figure 5 This is a schematic diagram of the installation structure of the hydraulic cylinder of the present invention; Figure 6 This is a schematic diagram of the installation structure of the water injection pipe of the present invention; Figure 7 This is a schematic diagram of the installation structure of the threaded sleeve of the present invention; Figure 8 This is a schematic diagram of the installation structure of the stabilizing component of the present invention; Labels in the diagram: 1. Sliding cylinder; 2. Control components; 201. Sliding groove; 202. Sliding arc plate; 203. Extended arc plate; 204. Limiting groove; 205. Outer extension plate; 206. Fixing rod; 207. Lifting rod; 208. Fixing groove; 209. Pull-out locking groove; 210. Support arm; 211. Mounting groove plate; 212. Hydraulic cylinder; 213. Telescopic rod; 214. Pulling disc; 215. Locking pin; 216. Water injection cylinder; 217. Collection chamber; 218. Connecting groove; 219. Water injection pipe; 220. Electromagnetic control valve; 221. Flow sensor; 3. Stabilizing components; 301. Rotating seat; 302. Rotating pin; 303. Adjusting plate; 304. Threaded rod; 305. Threaded sleeve; 306. Nut; 307. Adjusting groove; 308. Threaded extension chamber; 309. Disc slot; 310. Adjusting disc; 311. Stabilizing arm; 312. Stabilizing rod; 313. Stabilizing seat; 314. Stabilizing base plate. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] Example: Figure 1-8 As shown, the present invention provides a technical solution, a drainage simulation test device for municipal water supply and drainage design, including a sliding cylinder 1, and a control component 2 installed at the top of the sliding cylinder 1; The control component 2 includes a sliding groove 201, a sliding arc plate 202, an extension arc plate 203, a limiting groove 204, an extension plate 205, a fixing rod 206, a lifting rod 207, a fixing groove 208, a pull-and-connect groove 209, a support arm 210, a mounting groove plate 211, a hydraulic cylinder 212, a telescopic rod 213, a pulling disc 214, a locking pin 215, a water injection cylinder 216, a collecting chamber 217, a connecting groove 218, a water injection pipe 219, an electromagnetic control valve 220, and a flow sensor 221. A sliding groove 201 is provided on the inner side of the sliding cylinder 1. A sliding arc plate 202 is slidably installed on the inner side of the sliding groove 201. Several sliding arc plates 202 are provided and are installed at equal angles on the inner side of the sliding groove 201 for easy angle control. An extension arc plate 203 is welded to the top of the sliding arc plate 202. A limiting groove 204 is provided on the top of the sliding cylinder 1. Several limiting grooves 204 are provided and are all located at the top of the sliding cylinder 1 corresponding to the positions of the extension arc plate 203. The extension arc plate 203 is connected to the sliding cylinder 1 through the limiting groove 204. The cylinder 1 is slidably connected to facilitate changes in water flow. An extension plate 205 is welded to the top of the extension arc plate 203, and a fixing rod 206 is welded to the top of the extension plate 205. A lifting rod 207 is rotatably sleeved on the outside of the fixing rod 206. A fixing groove 208 is provided on the inner side of the lifting rod 207 at the corresponding position of the fixing rod 206. The inner diameter of the fixing groove 208 is equal to the outer diameter of the fixing rod 206. The contact surfaces of the fixing groove 208 and the fixing rod 206 are both smooth curved surfaces, which facilitates rapid rotation. A pull-locking groove 209 is provided on the inner side of the lifting rod 207 at the symmetrical position of the fixing groove 208. A support arm 210 is welded to the outside of the sliding cylinder 1. A mounting groove plate 211 is welded to one end face of the support arm 210. A hydraulic cylinder 212 is installed on the inner side of the mounting groove plate 211. A telescopic rod 213 is connected to the telescopic end of the hydraulic cylinder 212. A pulling plate 214 is welded to the bottom end of the telescopic rod 213. A locking pin 215 is welded to the top end of the pulling plate 214. Several locking pins 215 are provided. The number of locking pins 215 is the same as the number of lifting rods 207. The inner diameter of the pulling locking groove 209 is equal to the outer diameter of the locking pin 215, which facilitates the control of water flow in different directions. A water injection cylinder 216 is sleeved on the outer side of the sliding arc plate 202. A collection chamber 217 is opened on the inner side of the water injection cylinder 216. A connecting groove 218 is opened at the bottom end of the water injection cylinder 216.

[0021] A water injection pipe 219 is installed on the outside of the water injection cylinder 216, and an electromagnetic control valve 220 is installed on the outside of the water injection pipe 219. A flow sensor 221 is installed at the bottom of the inner side of the sliding cylinder 1. Several water injection pipes 219 are provided, and the several water injection pipes 219 are installed at equal angles on the outside of the water injection cylinder 216. The input ends of the electromagnetic control valve 220 and the hydraulic cylinder 212 are electrically connected to the output end of the external controller, and the data output end of the flow sensor 221 is electrically connected to the input end of the external controller.

[0022] A stabilizing component 3 is installed at the bottom of the sliding cylinder 1; The stabilizing component 3 includes a rotating seat 301, a rotating pin 302, an adjusting plate 303, a threaded rod 304, a threaded sleeve 305, a nut 306, an adjusting groove 307, a threaded extension chamber 308, a disc slot 309, an adjusting disc 310, a stabilizing arm 311, a stabilizing rod 312, a stabilizing seat 313, and a stabilizing base plate 314; A rotating seat 301 is welded to the outside of the water injection cylinder 216. A rotating pin 302 is welded to the inside of the rotating seat 301. An adjusting plate 303 is rotatably sleeved on the outside of the rotating pin 302. A threaded rod 304 is welded to one end of the adjusting plate 303. A threaded sleeve 305 is threaded to the outside of the threaded rod 304. A nut 306 is sleeved on the outside of the threaded sleeve 305. An adjusting groove 307 is opened on the inside of the adjusting plate 303. The outer diameter of the rotating pin 302 is equal to the inner diameter of the adjusting groove 307. The rotating pin 302 is rotatably connected to the adjusting plate 303 through the adjusting groove 307, which is conducive to quick adjustment of the support angle. The inner side of the threaded sleeve 305 is provided with a threaded extension chamber 308, and one end of the threaded sleeve 305 is provided with a disc groove 309. Several rotating seats 301 are provided, and several rotating seats 301 are welded at equal angles to the outer side of the water injection cylinder 216. The inner diameter of the disc groove 309 is equal to the outer diameter of the adjusting disc 310, which is conducive to support from different angles. The adjusting disc 310 is rotatably sleeved on the inner side of the disc groove 309. A stabilizing arm 311 is welded to one end face of the adjusting disc 310. A stabilizing rod 312 is welded to one end of the stabilizing arm 311. A stabilizing seat 313 is rotatably installed on the outer side of the stabilizing rod 312. A stabilizing base plate 314 is welded to one end of the stabilizing seat 313.

[0023] The working principle and usage process of this invention are as follows: First, the operator lifts the sliding cylinder 1 into the air using the support arm 210. When the operator needs to conduct a sewage well drainage simulation experiment, the direction and flow rate of sewage entering the sewage well need to be adjusted. At this time, the water injection cylinder 216 is moved to the bottom position of the sliding cylinder 1, and the connecting groove 218 at the bottom of the water injection cylinder 216 is fitted onto the outer side of all the sliding arc plates 202. At this time, the sewage well is simulated through the connecting groove 218, and external water is injected into the inside of the collection chamber 217 through the water injection pipe 219, so that a large amount of water can be collected inside the collection chamber 217. If the operator needs to simulate sewage discharge from different directions, they only need to rotate the lifting rod 207 at the top of the corresponding extended arc plate 203. The lifting rod 207 will then rotate outside the fixed rod 206 via the fixed groove 208. The other end of the lifting rod 207 can then be rotated to the position where the top of the pulling disc 214 aligns with the locking pin 215. Then, the hydraulic cylinder 212 inside the mounting plate 211 is controlled to retract the telescopic rod 213, thereby moving the pulling disc 214 upwards. The locking pin 215 can then be engaged with the inner side of the corresponding pulling groove 209, pulling the extended arc plate 203 upwards. The extended arc plate 203 then pulls the sliding arc plate 202 upwards. At this point, the sliding arc plate 202 forms a drain outlet with the connecting groove 218, allowing water from the collecting chamber 217 to flow from the drain outlet to the bottom of the connecting groove 218. Subsequently, the flow sensor 221 will process the sewage flow data generated at this time. If it is necessary to generate data of simultaneous discharge of sewage from both sides to form convection, it is only necessary to lift the two sliding arc plates 202 at the symmetrical positions to complete the simulation. If it is necessary to simulate the impact intensity generated when the sewage well is completely submerged during flooding, the operator can hang all the lifting rods 207 on the top of the locking pin 215, and then control the hydraulic cylinder 212 to lift the pulling plate 214 upward. At this time, all the sliding arc plates 202 can be driven to move upward inside the sliding groove 201. At this time, all the water in the collecting chamber 217 will flow into the connecting groove 218 at the same time. At this time, the drainage system at the bottom can be simulated for flooding. During the simulation, multiple water injection cylinders 216 can be used to inject water into the collecting chamber 217 at the same time to ensure the water volume inside the collecting chamber 217 and ensure the duration of the simulation. By extending the arc plate 203 and pulling the sliding arc plate 202 upward, a discharge port is formed between the sliding arc plate 202 and the connecting channel 218. Then, the water inside the collecting chamber 217 flows from the discharge port to the bottom of the connecting channel 218. This can simulate the drainage situation in a local direction and test the drainage system's ability to respond to a large influx of sewage from different directions. By simultaneously opening the sliding arc plates 202 at symmetrical positions, convective sewage can be simulated to test the water flow management ability inside the sewage well when sewage from different directions flows into the sewage well under heavy rain conditions, preventing sewage from accumulating and becoming difficult to drain. Furthermore, during the simulation of a severe rainstorm, all sliding arc plates 202 can be opened to simulate the discharge of sufficient rainwater, testing the maximum drainage capacity of the drainage system. Then, the drainage system at the bottom can be improved to prevent the sewage well from failing to drain quickly and causing flooding during severe rainstorms. Accurate simulation of various water flow conditions in the sewage well can help designers design urban drainage systems accurately, ensuring the effectiveness and stability of urban sewage systems and providing accurate and effective simulation data for the subsequent construction of urban sewage systems. Finally, for sewage wells at special locations and angles, the angle of the injection cylinder 216 needs to be adjusted so that it can completely fit the top of the simulated sewage well. The operator first rotates all the adjusting plates 303 upwards, then fits the injection cylinder 216 to the top of the angled sewage well. Next, the operator rotates the adjusting plate 303 at its lowest horizontal position towards the sewage well plane. Then, the nut 306 can be rotated on the outside of the threaded rod 304. The nut 306 then moves the threaded sleeve 305 on the outside of the threaded rod 304, causing the threaded sleeve 305 to move downwards. After adjusting a certain distance, the stabilizing base plate 314 will then fit... The threaded sleeve 305 is then continuously screwed onto the plane of the sewage well. At this time, the adjusting disc 310 at the top of the stabilizing arm 311 will rotate inside the disc slot 309. Then, the length of the threaded sleeve 305 and the threaded rod 304 is continuously extended to stabilize the water injection cylinder 216. Then, all the stabilizing base plates 314 are adjusted in sequence so that the water injection cylinder 216 can be completely fitted to the surface of the sewage well. Then, when the operator simulates the water volume, the water flow direction is also simulated by adjusting the angle of the water injection cylinder 216. When there is a certain slope, the influence of the slope on the water flow acceleration is simulated, which accurately restores the sewage treatment capacity of sewage wells at different angles in reality when discharging sewage, and can further optimize the urban sewage system.

[0024] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drainage simulation test device for municipal water supply and drainage design, comprising a sliding cylinder (1), characterized in that: The top of the sliding cylinder (1) is equipped with a control component (2); The control component (2) includes a sliding groove (201); The sliding cylinder (1) has a sliding groove (201) on its inner side. A sliding arc plate (202) is slidably installed on the inner side of the sliding groove (201). An extension arc plate (203) is welded to the top of the sliding arc plate (202). A limit groove (204) is opened at the top of the sliding cylinder (1). An extension plate (205) is welded to the top of the extension arc plate (203). A fixing rod (206) is welded to the top of the extension plate (205). A lifting rod (207) is rotatably sleeved on the outer side of the fixing rod (206). A fixing groove (208) is opened on the inner side of the lifting rod (207) at a position corresponding to the fixing rod (206). A pull-locking groove (209) is opened on the inner side of the lifting rod (207) at a position symmetrical to the fixing groove (208). A support arm (210) is welded to the outside of the sliding cylinder (1). A mounting groove plate (211) is welded to one end face of the support arm (210). A hydraulic cylinder (212) is installed on the inside of the mounting groove plate (211). A telescopic rod (213) is connected to the telescopic end of the hydraulic cylinder (212). A pull plate (214) is welded to the bottom end of the telescopic rod (213). A locking pin (215) is welded to the top end of the pull plate (214). A water injection cylinder (216) is sleeved on the outer side of the sliding arc plate (202), a collection chamber (217) is opened on the inner side of the water injection cylinder (216), and a connecting groove (218) is opened at the bottom end of the water injection cylinder (216).

2. The drainage simulation test device for municipal water supply and drainage design according to claim 1, characterized in that: A water injection pipe (219) is installed on the outside of the water injection cylinder (216), an electromagnetic control valve (220) is installed on the outside of the water injection pipe (219), and a flow sensor (221) is installed at the bottom of the inner side of the sliding cylinder (1).

3. The drainage simulation test device for municipal water supply and drainage design according to claim 1, characterized in that: Several sliding arc plates (202) are provided, and several sliding arc plates (202) are installed at equal angles on the inner side of the sliding groove (201).

4. The drainage simulation test device for municipal water supply and drainage design according to claim 1, characterized in that: The limiting groove (204) is provided in several places. The limiting groove (204) is provided at the top of the sliding cylinder (1) and at the corresponding position of the extension arc plate (203). The extension arc plate (203) is slidably connected to the sliding cylinder (1) through the limiting groove (204).

5. A drainage simulation testing device for municipal water supply and drainage design according to claim 1, characterized in that: The inner diameter of the fixing groove (208) is equal to the outer diameter of the fixing rod (206), and the contact surfaces of the fixing groove (208) and the fixing rod (206) are both smooth curved surfaces.

6. The drainage simulation test device for municipal water supply and drainage design according to claim 1, characterized in that: The locking pins (215) are provided in a plurality of numbers, the number of which is the same as the number of lifting rods (207), and the inner diameter of the pulling locking groove (209) is equal to the outer diameter of the locking pins (215).

7. A drainage simulation testing device for municipal water supply and drainage design according to claim 1, characterized in that: The water injection pipe (219) is provided in several places, and the several water injection pipes (219) are installed at the same angle on the outside of the water injection cylinder (216). The input ends of the electromagnetic control valve (220) and the hydraulic cylinder (212) are electrically connected to the output end of the external controller. The data output end of the flow sensor (221) is electrically connected to the input end of the external controller.

8. A drainage simulation testing device for municipal water supply and drainage design according to claim 1, characterized in that: A stabilizing component (3) is installed at the bottom of the sliding cylinder (1); The stabilizing component (3) includes a rotating base (301); A rotating seat (301) is welded to the outside of the water injection cylinder (216), a rotating pin (302) is welded to the inside of the rotating seat (301), an adjusting plate (303) is rotatably sleeved on the outside of the rotating pin (302), a threaded rod (304) is welded to one end of the adjusting plate (303), a threaded sleeve (305) is threaded to the outside of the threaded rod (304), a nut (306) is sleeved on the outside of the threaded sleeve (305), and an adjusting groove (307) is opened on the inside of the adjusting plate (303). The threaded sleeve (305) has a threaded extension chamber (308) on its inner side. One end of the threaded sleeve (305) has a disc groove (309). An adjusting disc (310) is rotatably sleeved on the inner side of the disc groove (309). A stabilizing arm (311) is welded to one end face of the adjusting disc (310). A stabilizing rod (312) is welded to one end of the stabilizing arm (311). A stabilizing seat (313) is rotatably installed on the outer side of the stabilizing rod (312). A stabilizing base plate (314) is welded to one end of the stabilizing seat (313).

9. A drainage simulation testing device for municipal water supply and drainage design according to claim 8, characterized in that: The outer diameter of the rotating pin (302) is equal to the inner diameter of the adjusting groove (307), and the rotating pin (302) is rotatably connected to the adjusting plate (303) through the adjusting groove (307).

10. A drainage simulation test device for municipal water supply and drainage design according to claim 8, characterized in that: Several rotating seats (301) are provided, and several rotating seats (301) are welded at equal angles to the outer side of the water injection cylinder (216). The inner diameter of the disc groove (309) is equal to the outer diameter of the adjusting disc (310).

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