A drainage well with energy dissipation function

Abstract

The present invention relates to a drainage well with an energy dissipation function, comprising an inlet chamber, a vertical energy dissipation chamber, a horizontal energy dissipation chamber, an outlet chamber, and a wellbore. The inlet chamber, the vertical energy dissipation chamber, and the horizontal energy dissipation chamber are sequentially connected from top to bottom. The outlet chamber is located at the bottom of the inlet chamber and is adjacent to and connected to the vertical and horizontal energy dissipation chambers on the same side. The inlet chamber is provided with a driving mechanism and an upstream energy dissipation cylinder connected to the vertical energy dissipation chamber. The vertical energy dissipation chamber is provided with a vertical energy dissipation mechanism. The horizontal energy dissipation chamber has multiple levels of horizontal energy dissipation units arranged in series from top to bottom, and adjacent two levels of horizontal energy dissipation units are connected to each other. All horizontal energy dissipation units are respectively connected to the outlet chamber, and the outlet chamber is provided with multiple pulling mechanisms. The present invention automatically divides the upstream water into an upper water flow and a lower water flow according to the upstream water flow, and first dissipates the energy of the upper water flow. The upper water flow is then mixed with the lower water flow and discharged into the downstream drainage pipe after vertical energy dissipation and horizontal graded energy dissipation to stabilize the flow.

Description

Technical Field

[0001] The present invention relates to the technical field of supporting facilities for municipal drainage wells, and in particular to the field of supporting facilities for drainage wells with an energy dissipation function. Background Art

[0002] Drainage wells with energy dissipation function are one of the important facilities in the municipal drainage network system. Their main function is to dissipate the energy of water coming from the upstream drainage pipe with a higher elevation and then discharge it into the downstream drainage pipe with a lower elevation. Traditional drainage wells with energy dissipation function generally adopt vertical drop, stepped or vortex tube type waterfalls, which often have the following main problems: (1) The energy dissipation effect caused by the synchronous energy dissipation of the upper and lower layers of water flow is poor. The main reason is that the upper and lower layers of water flow have different potential energies. During the waterfall process, the upper and lower layers of water flow dissipate energy synchronously, resulting in the lower layer of water flow having completed energy dissipation while the upper layer of water flow still has a certain amount of energy, thus affecting the overall energy dissipation effect; (2) The vertical space of traditional drainage wells with energy dissipation function is not fully utilized, resulting in a larger plane size of the drainage well, a correspondingly larger area and higher investment, and the energy dissipation efficiency of the waterfall is also poor. The effect is not good; (3) The water outflow of traditional drainage wells with energy dissipation function is often chaotic, which has a greater impact on downstream drainage pipes and facilities; (4) The adaptability to changes in upstream water volume is poor. Traditional drainage wells with energy dissipation function are often designed based on a specific design flow rate. When the upstream water volume changes greatly, especially when the water volume in the upstream drainage pipe is much larger than the design flow rate, the energy dissipation effect is poor; (5) Traditional drainage wells with energy dissipation function often use a one-time large drop. This drop mode has a greater impact on the well body, and long-term continuous operation will cause serious damage to the well body structure. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned existing technologies and provide a drainage well with energy dissipation function. It mainly automatically distributes the water into upper and lower layers of water according to the upstream water conditions, and first dissipates the energy of the upper layer of water, and then mixes the upper and lower layers of water after energy dissipation, and then discharges them into the downstream drainage pipe after vertical energy dissipation and horizontal graded energy dissipation and flow stabilization.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a drainage well with energy dissipation function, comprising an inlet chamber, a vertical energy dissipation chamber, a horizontal energy dissipation chamber, an outlet chamber and a wellbore, the inlet chamber, the vertical energy dissipation chamber and the horizontal energy dissipation chamber are sequentially connected from top to bottom, the outlet chamber is located at the lower part of the inlet chamber and is located on the same side of the vertical energy dissipation chamber and the horizontal energy dissipation chamber, and is respectively adjacent to and connected with the vertical energy dissipation chamber and the horizontal energy dissipation chamber, the inlet chamber is provided with a driving mechanism and an upstream energy dissipation cylinder connected to the vertical energy dissipation chamber, the vertical energy dissipation chamber is provided with a vertical energy dissipation mechanism, the horizontal energy dissipation chamber is provided with multiple levels of horizontal energy dissipation units in series from top to bottom, and the adjacent two levels of the horizontal energy dissipation units are connected to each other, all the horizontal energy dissipation units are respectively connected to the outlet chamber, and the upper part of the outlet chamber and the inlet chamber are connected by a retractable side plate, the driving mechanism and the upstream energy dissipation The cylinder is separated, and a plurality of pulling mechanisms are arranged in the water outlet chamber. Except for the last-level lateral energy dissipation unit from top to bottom, the remaining lateral energy dissipation units are correspondingly provided with a movable plate and the pulling mechanism, and the driving mechanism can drive the pulling mechanism to pull the movable plate to rotate. The rotation of the movable plate can open or close the flow channel between the corresponding two adjacent levels of the lateral energy dissipation units, and synchronously close or open the flow channel between the corresponding remaining lateral energy dissipation units except the last-level lateral energy dissipation unit and the water outlet chamber. The bottom of the side wall of the water inlet chamber away from the water outlet chamber is connected to a water inlet pipe, and the bottom of the side wall of the water outlet chamber away from the side of the lateral energy dissipation chamber is connected to a water outlet pipe. The wellbore is arranged at the top of the water inlet chamber and is connected to the water inlet chamber.

[0005] The beneficial effects of the present invention are as follows: the drainage well with energy dissipation function of the present invention automatically distributes the upstream water entering the water inlet chamber into an upper water flow and a lower water flow by arranging the driving mechanism and the upstream energy dissipation cylinder in the water inlet chamber, and first dissipates the energy of the upper water flow, and then mixes with the lower water flow and dissipates the energy together, thereby eliminating the adverse effect of the upper water flow on the energy dissipation of the lower water flow. Through the combined energy dissipation mode of the vertical energy dissipation mechanism and the multi-stage horizontal energy dissipation, not only can the vertical space of the drainage well be fully utilized for energy dissipation, but also the plane size, floor space and investment of the drainage well can be reduced, and the energy dissipation effect is better, the water outlet flow state is more stable, and the impact on the downstream pipeline is also smaller. According to the different upstream water volume, through the combined action of the driving mechanism, the pulling mechanism and the movable plate, different levels of horizontal energy dissipation units are opened in turn to perform corresponding energy dissipation, effectively improving the adaptability of the drainage well with energy dissipation function to the water volume, improving the energy dissipation efficiency, and effectively reducing the impact of the water flow on the well body, thereby protecting the well body structure.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows:

[0007] Further: the driving mechanism includes an upper pull-up plate, an upper spring, a lower pull-up plate and a lower spring which are arranged in sequence from top to bottom, the upper end of the upper spring is connected and fixed to the bottom of the upper pull-up plate near the water inlet pipe, the lower end of the upper spring is connected and fixed to the top of the lower pull-up plate near the water inlet pipe, the upper end of the lower spring is connected and fixed to the bottom of the lower pull-up plate near the water inlet pipe, the lower end of the lower spring is connected and fixed to the bottom wall of the water inlet chamber near the water inlet pipe, a floating block is provided at the bottom of the upper pull-up plate near the water inlet pipe, the upper end of the retractable side plate is connected and fixed to the bottom of the upper pull-up plate near the water outlet pipe, the lower end of the retractable side plate is connected and fixed to the lower pull-up plate near the The top of the outlet pipe is connected and fixed, the top of the upstream energy dissipation cylinder is connected and fixed to the bottom of the lower pull-down plate near the outlet pipe, the bottom of the upstream energy dissipation cylinder is connected and fixed to the bottom wall of the water inlet chamber near the outlet pipe, the top of the upstream energy dissipation cylinder is communicated with the water inlet chamber through an upstream water inlet opening provided on the lower pull-down plate near the outlet pipe, the bottom of the upstream energy dissipation cylinder is communicated with the vertical energy dissipation chamber through an upstream water outlet opening provided on the bottom wall of the water inlet chamber near the outlet pipe, the upper ends of all the pulling mechanisms are respectively connected to the bottom of the upper pull-up plate in the outlet chamber, and the upper pull-up plate can drive each pulling mechanism to move up and down when it moves up and down.

[0008] The beneficial effect of the above further scheme is that: by arranging the floating block, after the upstream water enters the water inlet chamber, the water level of the water inlet chamber rises accordingly, thereby causing the floating block to float up, and the floating block pulls the upper pull plate to move upward, thereby stretching the upper spring and the retractable side plate, thereby pulling the lower pull plate to move upward, thereby driving the lower spring to stretch, so as to respectively form an upper flow channel between the upper pull plate and the lower pull plate, and a lower flow channel between the lower pull plate and the bottom wall of the water inlet chamber, thereby automatically distributing the upstream water entering the water inlet chamber into the upper flow channel. The upper water flow in the flow channel and the lower water flow flowing into the lower flow channel, and the upper water flow is first dissipated by the upper energy dissipation cylinder, thereby eliminating the adverse effect of the upper water flow on the energy dissipation of the lower water flow. In addition, when the upper pull plate moves up and down, it can also drive each pulling mechanism to move up and down and then pull the movable plate to rotate. The rotation of the movable plate can open or close the flow channel between the corresponding two adjacent levels of the lateral energy dissipation units, and synchronously close or open the flow channel between the corresponding remaining lateral energy dissipation units and the water outlet chamber except the last level of the lateral energy dissipation unit.

[0009] Further: the upstream energy dissipation cylinder includes a retractable side wall and a plurality of energy dissipation plates, the retractable side wall is arranged between the pull-down plate and the bottom wall of the water inlet chamber, and each of the energy dissipation plates is arranged on the inner wall of the retractable side wall in an upper and lower staggered manner, and each of the energy dissipation plates can move up and down with the extension and contraction of the retractable side wall.

[0010] The beneficial effect of the above-mentioned further scheme is: by setting the retractable side wall, it is convenient to stretch and compress the retractable side wall when the upper pull-up plate moves up and down, thereby facilitating the automatic adjustment of the height of the upper energy dissipation cylinder according to the amount of upper water flow flowing into the upper flow channel, and then carrying out targeted pre-energy dissipation of the upper water flow, thereby improving the efficiency of energy dissipation. By setting the energy dissipation plate, the upper water flow can be pre-energy dissipated, which is conducive to eliminating the adverse effects of the upper water flow on the energy dissipation of the lower water flow.

[0011] Furthermore: the elastic coefficients of the upper spring and the retractable side plate are both the first elastic coefficient, the elastic coefficients of the lower spring and the retractable side wall are both the second elastic coefficient, and the first elastic coefficient is not equal to the second elastic coefficient.

[0012] The beneficial effect of the above further scheme is: by setting the elastic coefficient of the upper spring and the retractable side plate to be different from the elastic coefficient of the lower spring and the retractable side wall, under the pulling action of the same buoyancy, the heights of the upper flow channel and the lower flow channel formed are different, so that the flow rates of the upper water flow flowing into the upper flow channel and the lower water flow flowing into the lower flow channel are also different, thereby realizing the automatic distribution of the upstream water volume entering the water inlet chamber, and automatically and dynamically adjusting the distribution ratio of the upper water flow and the lower water flow according to the different water volumes.

[0013] Further: a water inlet hole is provided on the bottom wall of the water inlet chamber near the side of the water outlet pipe, the top of the vertical energy dissipation chamber away from the side of the water outlet pipe is connected with the water inlet chamber through the water inlet hole, the top of the vertical energy dissipation chamber close to the side of the water outlet pipe is connected with the upstream energy dissipation cylinder through the upstream water outlet port, the lower part of the side wall of the vertical energy dissipation chamber away from the side of the water outlet chamber is provided with a horizontal water inlet port connected with the horizontal energy dissipation chamber, the side wall of the vertical energy dissipation chamber close to the side of the water outlet chamber is provided with a drain hole connected with the water outlet chamber, and the vertical energy dissipation chamber is provided with a drain bucket and the vertical energy dissipation machine that can open or close the horizontal water inlet port in sequence from top to bottom. Structure, the drain bucket is located below the water inlet and the upper water outlet port, the vertical energy dissipation mechanism is slidably arranged in the vertical energy dissipation chamber, in a natural state, the top of the vertical energy dissipation mechanism is at the same height as the bottom of the drain hole and the vertical energy dissipation mechanism closes the horizontal water inlet port, when the upstream water entering the water inlet chamber enters the vertical energy dissipation chamber through the upper water outlet port and / or the water inlet port, the water flows through the drain bucket and falls into the top of the vertical energy dissipation mechanism, and drives the vertical energy dissipation mechanism to move downward, thereby gradually opening the horizontal water inlet port, and then opening the connecting channel between the vertical energy dissipation chamber and the horizontal energy dissipation chamber.

[0014] The beneficial effects of the above further scheme are: by setting the water inlet hole, the water inlet chamber can be connected to the vertical energy dissipation chamber, by setting the horizontal water inlet orifice, the vertical energy dissipation chamber and the horizontal energy dissipation chamber can be connected, by setting the drain hole, the vertical energy dissipation chamber can be connected to the water outlet chamber, and by setting the vertical energy dissipation mechanism, the water flow in the water inlet chamber can be dissipated after entering the vertical energy dissipation chamber, and at the same time, the vertical energy dissipation mechanism can be driven downward to gradually open the horizontal water inlet orifice, so that the water flow after energy dissipation can enter the horizontal energy dissipation chamber through the horizontal water inlet orifice for further energy dissipation.

[0015] Further: the vertical energy dissipation mechanism includes a horizontal energy dissipation plate and a vertical spring. The horizontal energy dissipation plate is movably arranged in the vertical energy dissipation chamber. In the natural state, the top of the horizontal energy dissipation plate is at the same height as the bottom of the drain hole and the bottom of the horizontal energy dissipation plate is higher than the top of the horizontal water inlet opening. The upper end of the vertical spring is connected to the bottom of the horizontal energy dissipation plate, and the lower end of the vertical spring is fixed to the bottom wall of the vertical energy dissipation chamber. The water flow falling from the drain bucket can drive the horizontal energy dissipation plate to move downward and gradually open the horizontal water inlet opening, thereby opening the connecting channel between the vertical energy dissipation chamber and the horizontal energy dissipation chamber, and synchronously compressing the vertical spring.

[0016] The beneficial effect of the above-mentioned further scheme is: by movably setting the horizontal energy dissipation plate in the vertical energy dissipation chamber, when the upper water flow and the lower water flow fall into the vertical energy dissipation chamber, the two water flows are first mixed through the drain bucket, and then fall downward to the top of the horizontal energy dissipation plate. The falling water flow impacts the horizontal energy dissipation plate and then compresses the vertical spring to achieve energy dissipation. At the same time, the horizontal energy dissipation plate is pulled downward during the compression of the vertical spring, so that the horizontal energy dissipation plate moves below the horizontal water inlet orifice. At this time, the water flow on the upper part of the horizontal energy dissipation plate is divided into two parts, a smaller part of the water flow is discharged into the water outlet chamber through the drain hole, and most of the water flow enters the horizontal energy dissipation chamber through the horizontal water inlet orifice.

[0017] Further: the multiple levels of transverse energy dissipation units are arranged adjacent to each other in sequence and separated by a dividing transverse plate, the transverse energy dissipation units include a horizontally arranged upper energy dissipation bin, a vertically arranged middle energy dissipation bin and a horizontally arranged lower energy dissipation bin which are connected in sequence, and the middle energy dissipation bin of the transverse energy dissipation units at the same level is arranged on the same side of the upper energy dissipation bin and the lower energy dissipation bin away from the water outlet chamber and is connected to the upper energy dissipation bin and the lower energy dissipation bin respectively, the upper energy dissipation bin and the lower energy dissipation bin in each level of the transverse energy dissipation units are separated by an inner transverse plate, and the side wall of the upper energy dissipation bin close to the water outlet chamber of the first level of the transverse energy dissipation units from top to bottom is connected by the transverse inlet. The water orifice is connected to the side wall of the vertical energy dissipation chamber close to the water inlet pipe, and the top wall of the upper energy dissipation bin close to the water outlet chamber of the remaining levels of the horizontal energy dissipation units except the first level of the horizontal energy dissipation unit is connected to the bottom wall of the lower energy dissipation bin close to the water outlet chamber of the upper level of the horizontal energy dissipation unit through the connecting hole provided on the corresponding dividing horizontal plate, and the upper energy dissipation bin of the remaining levels of the horizontal energy dissipation units except the first level of the horizontal energy dissipation unit is separated from the water outlet chamber by the inner plate on the side of the upper energy dissipation bin close to the water outlet chamber, and the upper part of the side wall of the middle energy dissipation bin close to the upper energy dissipation bin is away from the upper energy dissipation bin. The side wall on one side of the water outlet chamber is connected, and the lower part of the side wall of the middle energy dissipation bin close to the upper energy dissipation bin is connected to the side wall of the lower energy dissipation bin away from the water outlet chamber. A water outlet hole connected to the water outlet chamber is provided on the side wall of the lower energy dissipation bin of each level of the horizontal energy dissipation unit close to the water outlet chamber, and a retaining pier is provided corresponding to the top of the water outlet hole. The movable plate that can open or close the connecting hole and the water outlet hole is rotatably provided on the dividing horizontal plate corresponding to the lower energy dissipation bin of the remaining horizontal energy dissipation units except the last level of the horizontal energy dissipation unit, and the pulling mechanism is connected to the corresponding movable plate and can drive the The movable plate rotates, and the rotation of the movable plate can open or close the connecting hole and thus open or close the flow channel between the corresponding two adjacent levels of the lateral energy dissipation units, and synchronously close or open the water outlet hole and thus close or open the flow channel between the corresponding remaining lateral energy dissipation units except the last level of the lateral energy dissipation unit and the water outlet chamber. The side wall of the lower energy dissipation bin of the last level of the lateral energy dissipation unit close to the water outlet chamber is connected to the water outlet chamber through the corresponding water outlet hole, and an energy dissipation vortex plate group is provided in the upper energy dissipation bin, an energy dissipation baffle plate group is provided in the middle energy dissipation bin, and an energy dissipation movable baffle plate group is provided in the lower energy dissipation bin.

[0018] The beneficial effect of the above-mentioned further scheme is that by arranging the upper energy dissipation bin, the middle energy dissipation bin and the lower energy dissipation bin, the water flow can be further dissipated in sequence along the direction of the water flow; by arranging the water outlet hole, the water flow in each lower energy dissipation bin can be conveniently entered into the water outlet chamber; by arranging the connecting hole, the water flow in the lower energy dissipation bin of the upper-level horizontal energy dissipation unit can be conveniently entered into the upper energy dissipation bin of the lower-level horizontal energy dissipation unit; by arranging the pulling mechanism, the movable plate can be driven to rotate; the rotation of the movable plate can open or close the flow passage between the corresponding two adjacent levels of the horizontal energy dissipation units, and synchronously close or open the flow passage between the corresponding remaining horizontal energy dissipation units except the last level and the water outlet chamber, thereby automatically switching the corresponding water flow energy dissipation channel according to the different flow rates of the upstream water entering the water inlet chamber, thereby realizing differentiated energy dissipation according to different upstream water volumes.

[0019] Further: the energy dissipation vortex plate group includes a plurality of curved energy dissipation vortex plates staggered up and down in the horizontal flow direction of the downstream water flow, the energy dissipation baffle plate group includes a plurality of energy dissipation baffle plates staggered in the flow direction of the downstream water flow, each of the energy dissipation baffle plates is rotatably arranged on the inner side wall of the corresponding middle energy dissipation bin away from the upper energy dissipation bin and the end of the corresponding inner horizontal plate away from the water outlet chamber, the energy dissipation movable baffle plate group includes a plurality of vertical energy dissipation baffles arranged perpendicular to the horizontal flow direction of the downstream water flow and a plurality of horizontally arranged transverse springs, each of the vertical energy dissipation baffles is arranged in sequence at intervals, except for the last vertical energy dissipation baffle near the water outlet hole, which is fixedly arranged in the lower energy dissipation bin, the remaining vertical energy dissipation baffles are all slidably arranged in the lower energy dissipation bin, and the adjacent two vertical energy dissipation baffles are connected by the transverse spring, and each vertical energy dissipation baffle is evenly provided with water holes.

[0020] The beneficial effects of the above-mentioned further scheme are: by staggering the plurality of energy dissipation vortex blades, a vortex can be formed when the water flows into the upper energy dissipation bin to dissipate energy; by staggering the plurality of energy dissipation baffles, when the water flows into the middle energy dissipation bin, each energy dissipation baffle can be impacted in turn so that it rotates around the inner horizontal plate or the inner side wall of the middle energy dissipation bin to dissipate energy; by setting a plurality of vertical energy dissipation baffles and a plurality of horizontally arranged transverse springs, when the water flows into the lower energy dissipation bin, each vertical energy dissipation baffle can be impacted in turn so that it slides freely in the lower energy dissipation bin and then compresses the transverse spring to dissipate energy; at the same time, water flows out from the water-permeable holes on each vertical energy dissipation baffle to achieve uniform water distribution and steady flow.

[0021] Further: the pulling mechanism includes a retractable elastic rope, a fixed pulley and a pull rope, the fixed pulley is arranged on the inner wall of the water outlet chamber close to the lower energy dissipation bin, one end of the pull rope is connected to the corresponding movable plate, and the other end of the pull rope is connected to one end of the retractable elastic rope after passing around the fixed pulley, and the other end of the retractable elastic rope is connected to the bottom of the upper pull plate in the water outlet chamber, and when the upper pull plate moves up and down, the pull rope can be driven by the retractable elastic rope to drive the corresponding movable plate to rotate, and the rotation of the movable plate can open or close the connecting hole between the corresponding two adjacent levels of the horizontal energy dissipation units, and synchronously close or open the corresponding water outlet hole on the lower energy dissipation bin.

[0022] The beneficial effect of the above-mentioned further scheme is that: when the amount of upstream water entering the water inlet chamber changes, the upper pull plate moves upward or downward, and the pull rope is driven by the retractable elastic rope to pull the corresponding movable plate to rotate, which can open or close the corresponding connecting hole between the two adjacent levels of the horizontal energy dissipation units, and then open or close the flow channel between the two adjacent levels of the horizontal energy dissipation units; and synchronously close or open the corresponding water outlet hole on the lower energy dissipation bin, and then close or open the flow channel between the corresponding remaining horizontal energy dissipation units except the last level of the horizontal energy dissipation unit and the water outlet chamber; thereby automatically switching the corresponding water flow energy dissipation channel according to the different flow rates of upstream water entering the water inlet chamber, and realizing differentiated energy dissipation according to different upstream water volumes.

[0023] Furthermore, in two adjacent levels of the lateral energy dissipation units, the elastic coefficient of the retractable elastic rope corresponding to the upper level of the lateral energy dissipation unit is smaller than the elastic coefficient of the retractable elastic rope corresponding to the lower level of the lateral energy dissipation unit.

[0024] The beneficial effect of the above further scheme is: by setting the elastic coefficient of the retractable elastic rope of the upper-level lateral energy dissipation unit to be smaller than the elastic coefficient of the retractable elastic rope of the lower-level lateral energy dissipation unit, in this way, as the amount of upstream water entering the water inlet chamber increases, the corresponding connecting holes between the upper and lower adjacent lateral energy dissipation units can be opened step by step, and the water outlet holes of the corresponding lower energy dissipation bin can be closed synchronously, thereby realizing differentiated energy dissipation according to different upstream water amounts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a drainage well with energy dissipation function according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the AA section structure;

[0027] Figure 3 for Figure 1Schematic diagram of the BB cross-section structure.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Inlet chamber; 2. Vertical energy dissipation chamber; 3. Horizontal energy dissipation chamber; 4. Outlet chamber; 5. Wellbore; 6. Inlet pipe; 7. Outlet pipe; 8. Well cover; 9. Upstream inlet opening; 10. Upstream energy dissipation cylinder; 11. Drain hole; 12. Partitioning horizontal plate; 13. Inner horizontal plate; 14. Upper pull plate; 15. Lower pull plate; 16. Upper spring; 17. Lower spring; 18. Retractable side wall; 19. Upstream outlet opening; 20. Energy dissipation plate; 21. Drain bucket; 22. Horizontal dissipation Energy plate; 23. Vertical spring; 24. Horizontal water inlet; 25. Upper energy dissipation chamber; 26. Middle energy dissipation chamber; 27. Lower energy dissipation chamber; 28. Energy dissipation vortex; 29. ​​Energy dissipation baffle; 30. Vertical energy dissipation baffle; 31. Horizontal spring; 32. Water outlet; 33. Connecting hole; 34. Movable plate; 35. Retractable elastic rope; 36. Fixed pulley; 37. Pull rope; 38. Water inlet; 39. Retractable side plate; 40. Floating block; 41. Inner plate; 42. Pier. DETAILED DESCRIPTION

[0030] The following takes the drainage well with energy dissipation function of the present invention containing three-level horizontal energy dissipation units as an example, and describes the principles and features of the present invention in combination with the accompanying drawings. Other situations are similar. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] like Figures 1 to 3As shown, a drainage well with energy dissipation function comprises an inlet chamber 1, a vertical energy dissipation chamber 2, a horizontal energy dissipation chamber 3, a water outlet chamber 4 and a wellbore 5, wherein the inlet chamber 1, the vertical energy dissipation chamber 2 and the horizontal energy dissipation chamber 3 are sequentially connected from top to bottom, the water outlet chamber 4 is located at the lower part of the inlet chamber 1 and at the same side of the vertical energy dissipation chamber 2 and the horizontal energy dissipation chamber 3, and are respectively adjacent to and connected with the vertical energy dissipation chamber 2 and the horizontal energy dissipation chamber 3, a driving mechanism and an upstream energy dissipation cylinder 10 connected with the vertical energy dissipation chamber 2 are provided in the water inlet chamber 1, a vertical energy dissipation mechanism is provided in the vertical energy dissipation chamber 2, a multi-stage horizontal energy dissipation unit is arranged in series from top to bottom in the horizontal energy dissipation chamber 3, and the adjacent two stages of the horizontal energy dissipation units are connected to each other, all the horizontal energy dissipation units are respectively connected with the water outlet chamber 4, and the upper part of the water outlet chamber 4 and the water inlet chamber 1 are connected by a retractable side plate 39, The driving mechanism is separated from the upstream energy dissipation cylinder 10, and a plurality of pulling mechanisms are arranged in the water outlet chamber 4. Except for the last level of the lateral energy dissipation unit from top to bottom, the remaining lateral energy dissipation units are correspondingly provided with a movable plate 34 and the pulling mechanism, and the driving mechanism can drive the pulling mechanism to pull the movable plate 34 to rotate. The rotation of the movable plate 34 can open or close the flow channel between the corresponding two adjacent levels of the lateral energy dissipation units, and synchronously close or open the flow channel between the corresponding remaining lateral energy dissipation units except the last level of the lateral energy dissipation unit and the water outlet chamber 4. The bottom of the side wall of the water inlet chamber 1 away from the water outlet chamber 4 is connected to a water inlet pipe 6, and the bottom of the side wall of the water outlet chamber 4 away from the lateral energy dissipation chamber 3 is connected to a water outlet pipe 7. The wellbore 5 is arranged at the top of the water inlet chamber 1 and is connected to the water inlet chamber 1.

[0032] In one or more embodiments of the present invention, the driving mechanism includes an upper pull-up plate 14, an upper spring 16, a lower pull-up plate 15 and a lower spring 17 arranged in sequence from top to bottom, the upper end of the upper spring 16 is connected and fixed to the bottom of the upper pull-up plate 14 near the water inlet pipe 6, the lower end of the upper spring 16 is connected and fixed to the top of the lower pull-up plate 15 near the water inlet pipe 6, the upper end of the lower spring 17 is connected and fixed to the bottom of the lower pull-up plate 15 near the water inlet pipe 6, the lower end of the lower spring 17 is connected and fixed to the bottom wall of the water inlet chamber 1 near the water inlet pipe 6, the bottom of the upper pull-up plate 14 near the water inlet pipe 6 is provided with a floating block 40, the upper end of the retractable side panel 39 is connected and fixed to the bottom of the upper pull-up plate 14 near the water outlet pipe 7, and the lower end of the retractable side panel 39 is connected and fixed. The end is connected and fixed to the top of the pull-down plate 15 near the water outlet pipe 7, the top of the upstream energy dissipation cylinder 10 is connected and fixed to the bottom of the pull-down plate 15 near the water outlet pipe 7, the bottom of the upstream energy dissipation cylinder 10 is connected and fixed to the bottom wall of the water inlet chamber 1 near the water outlet pipe 7, the top of the upstream energy dissipation cylinder 10 is communicated with the water inlet chamber 1 through an upstream water inlet opening 9 provided on the pull-down plate 15 near the water outlet pipe 7, the bottom of the upstream energy dissipation cylinder 10 is communicated with the vertical energy dissipation chamber 2 through an upstream water outlet opening 19 provided on the bottom wall of the water inlet chamber 1 near the water outlet pipe 7, the upper ends of all the pulling mechanisms are respectively connected to the bottom of the upper pull plate 14 located in the water outlet chamber 4, and the upper pull plate 14 can drive each pulling mechanism to move up and down when it moves up and down. By setting the floating block 40, after the upstream water enters the water inlet chamber 1, the water level of the water inlet chamber 1 rises accordingly, so that the floating block 40 floats up. The floating block 40 floats up and pulls the upper pull plate 14 to move upward, thereby stretching the upper spring 16 and the retractable side plate 39, thereby pulling the lower pull plate 15 to move upward, thereby driving the lower spring 17 to stretch, so as to form an upper flow channel between the upper pull plate 14 and the lower pull plate 15, and a lower flow channel between the lower pull plate 15 and the bottom wall of the water inlet chamber 1, respectively, so that the upstream water entering the water inlet chamber 1 is automatically distributed into the water flowing into the The upper water flow in the upper flow channel and the lower water flow flowing into the lower flow channel, and the upper water flow is first dissipated by the upper energy dissipation cylinder 10, thereby eliminating the adverse effect of the upper water flow on the energy dissipation of the lower water flow. In addition, when the upper pull plate 14 moves up and down, it can also drive each of the pulling mechanisms to move up and down and then pull the movable plate 34 to rotate. The rotation of the movable plate 34 can open or close the flow channel between the corresponding two adjacent levels of the lateral energy dissipation units, and synchronously close or open the flow channel between the corresponding remaining lateral energy dissipation units and the water outlet chamber 4 except the last level of the lateral energy dissipation unit.

[0033] In one or more embodiments of the present invention, the upstream energy dissipation cylinder 10 includes a retractable side wall 18 and a plurality of energy dissipation sheets 20. The retractable side wall 18 is arranged between the lower pull-down plate 15 and the bottom wall of the water inlet chamber 1. The energy dissipation sheets 20 are arranged on the inner wall of the retractable side wall 18 in an alternating manner, and the energy dissipation sheets 20 can move up and down together with the extension and contraction of the retractable side wall 18. By providing the retractable side wall 18, it is convenient to stretch and compress the retractable side wall 18 when the upper pull-down plate 14 moves up and down, thereby facilitating automatic adjustment of the height of the upstream energy dissipation cylinder 10 according to the amount of upper water flowing into the upper flow channel, thereby performing targeted pre-energy dissipation on the upper water flow and improving the efficiency of energy dissipation. By providing the energy dissipation sheets 20, the upper water flow can be pre-energy dissipated, which is conducive to eliminating the adverse effects of the upper water flow on the energy dissipation of the lower water flow.

[0034] Optionally, in one or more embodiments of the present invention, the elastic coefficients of the upper spring 16 and the retractable side plate 39 are both the first elastic coefficient, the elastic coefficients of the lower spring 17 and the retractable side wall 18 are both the second elastic coefficient, and the first elastic coefficient is not equal to the second elastic coefficient. By setting the elastic coefficients of the upper spring 16 and the retractable side plate 39 to be different from the elastic coefficients of the lower spring 17 and the retractable side wall 18, under the pulling action of the same buoyancy, the heights of the upper flow channel and the lower flow channel formed are different, and the flow rates of the upper water flow flowing into the upper flow channel and the lower water flow flowing into the lower flow channel are also different, thereby achieving automatic distribution of the upstream water flow entering the water inlet chamber 1 and automatically and dynamically adjusting the distribution ratio of the upper water flow and the lower water flow according to the different water volumes.

[0035] Specifically, when the upstream water enters the water inlet chamber 1, the water level of the water inlet chamber 1 rises, thereby floating the floating block 40. The floating block 40 pulls the upper pull plate 14 upward, thereby stretching the upper spring 16 and the retractable side plate 39, thereby pulling the lower pull plate 15 upward, thereby driving the lower spring 17 and the retractable side wall 18 to stretch, thereby forming an upper flow channel between the upper pull plate 14 and the lower pull plate 15, and a flow channel between the lower pull plate 15 and the bottom wall of the water inlet chamber 1. The lower flow channel, since the elastic coefficient of the upper spring 16 and the retractable side plate 39 is different from the elastic coefficient of the lower spring 17 and the retractable side wall 18, under the same buoyancy pulling action, the height of the upper flow channel and the lower flow channel formed are different, so the corresponding water volume of the upper layer water flow flowing into the upper flow channel and the water volume of the lower layer water flow flowing into the lower flow channel are also different; therefore, the driving mechanism divides the upstream water entering the water inlet chamber 1 into the upper layer water flow flowing into the upper flow channel. The upper water flow passing through the upper flow channel between the upper pull-up plate 14 and the lower pull-down plate 15 enters the upper energy dissipation cylinder 10 from the upper water inlet port 9 and then falls downward. During the falling process, it is blocked by the energy dissipation sheets 20 and gradually dissipates energy. Then, it flows into the vertical energy dissipation chamber 2 from the upper water outlet port 19; and the lower water flow passing through the lower flow channel between the lower pull-down plate 15 and the bottom wall of the water inlet chamber 1 directly enters the lower water outlet port 19. Vertical energy dissipation chamber 2; therefore, the upstream water flowing into the water inlet chamber 1 is divided into two streams of upper water flow and lower water flow according to the water level through the driving mechanism. The upper water flow with higher water level and corresponding higher potential energy is first dissipated through the upstream energy dissipation cylinder 10, and then mixed with the lower water flow for energy dissipation, thereby realizing classified energy dissipation, eliminating the adverse effect of the upper water flow on the energy dissipation of the lower water flow, and solving the problem of poor energy dissipation effect caused by the traditional drainage well with energy dissipation function simultaneously eliminating the potential energy of the upper water flow and the lower water flow.

[0036] In one or more embodiments of the present invention, a water inlet hole 38 is provided on the bottom wall of the water inlet chamber 1 close to the water outlet pipe 7, the top of the vertical energy dissipation chamber 2 away from the water outlet pipe 7 is connected to the water inlet chamber 1 through the water inlet hole 38, the top of the vertical energy dissipation chamber 2 close to the water outlet pipe 7 is connected to the upstream energy dissipation cylinder 10 through the upstream outlet orifice 19, the lower part of the side wall of the vertical energy dissipation chamber 2 away from the water outlet chamber 4 is provided with a horizontal water inlet orifice 24 connected to the horizontal energy dissipation chamber 3, the side wall of the vertical energy dissipation chamber 2 close to the water outlet chamber 4 is provided with a drain hole 11 connected to the water outlet chamber 4, and the vertical energy dissipation chamber 2 is provided with a drain bucket 21 and a horizontal water inlet orifice 2 that can be opened or closed from top to bottom. 4, the drain bucket 21 is located below the water inlet hole 38 and the upper water outlet port 19, and the vertical energy dissipation mechanism is slidably arranged in the vertical energy dissipation chamber 2. In the natural state, the top of the vertical energy dissipation mechanism is at the same height as the bottom of the drain hole 11 and the vertical energy dissipation mechanism closes the horizontal water inlet port 24. When the upstream water entering the water inlet chamber 1 enters the vertical energy dissipation chamber 2 through the upper water outlet port 19 and / or the water inlet hole 38, the water flows through the drain bucket 21 and falls into the top of the vertical energy dissipation mechanism, driving the vertical energy dissipation mechanism to move downward, thereby gradually opening the horizontal water inlet port 24, and then opening the connecting channel between the vertical energy dissipation chamber 2 and the horizontal energy dissipation chamber 3. By setting the water inlet hole 38, the water inlet chamber 1 can be connected to the vertical energy dissipation chamber 2, by setting the horizontal water inlet orifice 24, the vertical energy dissipation chamber 2 can be connected to the horizontal energy dissipation chamber 3, and by setting the drain hole 11, the vertical energy dissipation chamber 2 can be connected to the water outlet chamber 4. By setting the vertical energy dissipation mechanism, the water flow in the water inlet chamber 1 can be dissipated after entering the vertical energy dissipation chamber 2, and at the same time, the vertical energy dissipation mechanism can be driven to move downward, and the horizontal water inlet orifice 24 can be gradually opened to facilitate the water flow after energy dissipation to enter the horizontal energy dissipation chamber 3 through the horizontal water inlet orifice 24 for further energy dissipation.

[0037] Specifically, in one or more embodiments of the present invention, the vertical energy dissipation mechanism includes a horizontal energy dissipation plate 22 and a vertical spring 23. The horizontal energy dissipation plate 22 is movably arranged in the vertical energy dissipation chamber 2. In the natural state, the top of the horizontal energy dissipation plate 22 is at the same height as the bottom of the drain hole 11 and the bottom of the horizontal energy dissipation plate 22 is higher than the top of the horizontal water inlet orifice 24. The upper end of the vertical spring 23 is connected to the bottom of the horizontal energy dissipation plate 22, and the lower end of the vertical spring 23 is fixed on the bottom wall of the vertical energy dissipation chamber 2. The water flow falling from the drain bucket 21 can drive the horizontal energy dissipation plate 22 to move downward and gradually open the horizontal water inlet orifice 24, thereby opening the connecting channel between the vertical energy dissipation chamber 2 and the horizontal energy dissipation chamber 3, and synchronously compressing the vertical spring 23. By movably setting the horizontal energy dissipation plate 22 in the vertical energy dissipation chamber 2, when the upper water flow and the lower water flow fall into the vertical energy dissipation chamber 2, the two water flows are first mixed through the drain bucket 21, and then fall downward to the top of the horizontal energy dissipation plate 22. The falling water flow impacts the horizontal energy dissipation plate 22 and then compresses the vertical spring 23 to achieve energy dissipation. At the same time, the vertical spring 23 pulls the horizontal energy dissipation plate 22 downward during compression, so that the horizontal energy dissipation plate 22 moves below the horizontal water inlet orifice 24. At this time, the water flow on the upper part of the horizontal energy dissipation plate 22 is divided into two parts. A smaller part of the water flow is discharged into the water outlet chamber 4 through the drain hole 11, and most of the water flow enters the horizontal energy dissipation chamber 3 through the horizontal water inlet orifice 24.

[0038] In one or more embodiments of the present invention, multiple levels of the lateral energy dissipation units are arranged adjacent to each other in sequence and separated by a partitioning transverse plate 12. The lateral energy dissipation units include a horizontally arranged upper energy dissipation bin 25, a vertically arranged middle energy dissipation bin 26 and a horizontally arranged lower energy dissipation bin 27 which are connected in sequence. The middle energy dissipation bin 26 of the lateral energy dissipation units at the same level is arranged on the same side of the upper energy dissipation bin 25 and the lower energy dissipation bin 27 away from the water outlet chamber 4 and is connected to both of them. The upper energy dissipation bin 25 and the lower energy dissipation bin 27 in each level of the lateral energy dissipation units are arranged adjacent to each other in sequence and separated by an inner transverse plate 13. The side wall of the upper energy dissipation bin 25 of the first level of the lateral energy dissipation units close to the water outlet chamber 4 is connected by the transverse inlet. The water orifice 24 is communicated with the side wall of the vertical energy dissipation chamber 2 close to the water inlet pipe 6, and the top wall of the upper energy dissipation bin 25 of the horizontal energy dissipation units of the remaining levels except the first-level horizontal energy dissipation unit is close to the water outlet chamber 4 and the bottom wall of the lower energy dissipation bin 27 of the horizontal energy dissipation unit of the upper level close to the water outlet chamber 4 is communicated through the connecting hole 33 provided on the corresponding dividing horizontal plate 12, and the upper energy dissipation bin 25 of the horizontal energy dissipation units of the remaining levels except the first-level horizontal energy dissipation unit is separated from the water outlet chamber 4 by the inner plate 41, and the upper part of the side wall of the middle energy dissipation bin 26 close to the upper energy dissipation bin 25 is away from the water outlet chamber 4. The side wall on one side is connected, the lower part of the side wall of the middle energy dissipation bin 26 close to the upper energy dissipation bin 25 is connected to the side wall of the lower energy dissipation bin 27 away from the water outlet chamber 4, and the side wall of the lower energy dissipation bin 27 of each level of the lateral energy dissipation unit close to the water outlet chamber 4 is provided with a water outlet hole 32 connected to the water outlet chamber 4, and a pier 42 is provided corresponding to the top of the water outlet hole 32. Except for the last level of the lateral energy dissipation unit, the lower energy dissipation bin 27 of the remaining lateral energy dissipation units is provided with a movable plate 34 that can open or close the connecting hole 33 and the water outlet hole 32 on the side of the water outlet chamber 4. The pulling mechanism is connected to the corresponding movable plate 34 and can drive the movable plate 34 to rotate. The movable plate 34 rotates to open or close the connecting hole 33 and thus open or close the flow passage between the corresponding two adjacent levels of the lateral energy dissipation units, and synchronously close or open the water outlet hole 32 and thus close or open the flow passage between the corresponding remaining lateral energy dissipation units except the last level of the lateral energy dissipation unit and the water outlet chamber 4. The side wall of the lower energy dissipation bin 27 of the last level of the lateral energy dissipation unit close to the water outlet chamber 4 is connected to the water outlet chamber 4 through the water outlet hole 32, but the movable plate 34 and the corresponding pulling mechanism are not provided. An energy dissipation vortex sheet group is provided in the upper energy dissipation bin 25, an energy dissipation baffle sheet group is provided in the middle energy dissipation bin 26, and an energy dissipation movable baffle plate group is provided in the lower energy dissipation bin 27.By setting the upper energy dissipation bin 25, the middle energy dissipation bin 26 and the lower energy dissipation bin 27, the water flow can be further dissipated in sequence along the direction of the water flow. By setting the water outlet hole 32, the water flow in each lower energy dissipation bin 27 can be conveniently entered into the water outlet chamber 4. By setting the connecting hole 33, the water flow in the lower energy dissipation bin 27 of the upper-level horizontal energy dissipation unit can be conveniently entered into the upper energy dissipation bin 25 of the lower-level horizontal energy dissipation unit. By setting the pulling mechanism, the movable plate 34 can be driven to rotate. The rotation of the movable plate 34 can open or close the flow passage between the corresponding two adjacent levels of the horizontal energy dissipation units, and synchronously close and open the flow passage between the corresponding remaining horizontal energy dissipation units except the last level of the horizontal energy dissipation unit and the water outlet chamber 4, thereby automatically switching the corresponding water flow energy dissipation channel according to the different flow rates of the upstream water entering the water inlet chamber 1, thereby realizing differentiated energy dissipation according to different upstream water volumes.

[0039] Here, one end of the movable plate 34 is rotatably connected to the side of the corresponding dividing transverse plate 12 close to the water outlet chamber 4 through a return spring, and the other end can rotate around the return spring. When the movable plate 34 rotates toward the water outlet chamber 4 around the return spring under the pulling mechanism, when the movable plate 34 completely closes the water outlet hole 32, it can no longer continue to rotate toward the water outlet chamber 4 due to the blocking effect of the retaining pier 42; when the upstream water enters the water inlet chamber 1, the movable plate 34 rotates under the drive of the pulling mechanism, and in this process, the return spring is twisted to absorb energy. When the upstream water no longer enters the water inlet chamber 1 and the water in the water inlet chamber 1 is discharged through the drain hole 11, the return spring is reset and releases energy.

[0040] In one or more embodiments of the present invention, the energy dissipation vortex sheet group includes a plurality of curved energy dissipation vortex sheets 28 arranged in an up-down staggered manner in the horizontal flow direction of the water flow, and the energy dissipation baffle sheet group includes a plurality of energy dissipation baffle sheets 29 arranged in an up-down staggered manner in the flow direction of the water flow, each of the energy dissipation baffle sheets 29 is respectively rotatably arranged on the inner side wall of the corresponding middle energy dissipation bin 26 away from the upper energy dissipation bin 25 and the end of the corresponding inner transverse plate 13 away from the water outlet chamber 4. The energy dissipation movable baffle sheet group includes a plurality of curved energy dissipation vortex sheets 28 arranged in an up-down staggered manner in the horizontal flow direction of the water flow, and the plurality of curved energy dissipation baffle sheets 29 are respectively rotatably arranged on the inner side wall of the corresponding middle energy dissipation bin 26 away from the upper energy dissipation bin 25 and the end of the corresponding inner transverse plate 13 away from the water outlet chamber 4. Multiple vertical energy dissipation baffles 30 are arranged vertically in the horizontal flow direction and multiple horizontally arranged transverse springs 31. The vertical energy dissipation baffles 30 are arranged in sequence at intervals. Except for the last vertical energy dissipation baffle 30 close to the water outlet 32, which is fixed in the lower energy dissipation bin 27, the remaining vertical energy dissipation baffles 30 are all slidably arranged in the lower energy dissipation bin 27. The adjacent two vertical energy dissipation baffles 30 are connected by the transverse springs 31, and each vertical energy dissipation baffle 30 is evenly provided with water-permeable holes. By staggering the plurality of energy dissipation vortex blades 28, a vortex can be formed when the water flows into the upper energy dissipation bin 25, thereby dissipating energy. By staggering the plurality of energy dissipation baffles 29, when the water flows into the middle energy dissipation bin 26, each of the energy dissipation baffles 29 can be impacted in turn so that it rotates around the inner horizontal plate 13 or the inner side wall of the middle energy dissipation bin 26, thereby dissipating energy. By setting a plurality of vertical energy dissipation baffles 30 and a plurality of horizontally arranged transverse springs 31, when the water flows into the lower energy dissipation bin 27, each of the vertical energy dissipation baffles 30 can be impacted in turn so that it slides freely in the lower energy dissipation bin 27 and then compresses the transverse springs 31, thereby dissipating energy. At the same time, water flows out from the water-permeable holes on each of the vertical energy dissipation baffles 30, thereby achieving uniform water distribution and steady flow.

[0041] Here, the energy dissipation baffles 29 are respectively rotated on the inner side walls of the inner transverse plate 13 and the middle energy dissipation chamber 26 through corresponding reset springs. When water flows into the middle energy dissipation chamber 26, it impacts the staggered energy dissipation baffles 29 in turn, causing them to rotate around the inner transverse plate 13 or the side wall of the middle energy dissipation chamber 26 and then twist the reset spring to absorb energy. When the upstream water no longer enters the middle energy dissipation chamber 26, the reset spring resets and releases energy.

[0042] In one or more embodiments of the present invention, the pulling mechanism includes a retractable elastic rope 35, a fixed pulley 36 and a pull rope 37. The fixed pulley 36 is arranged on the inner wall of the water outlet chamber 4 near the lower energy dissipation bin 27. One end of the pull rope 37 is connected to the corresponding movable plate 34, and the other end of the pull rope 37 is connected to one end of the retractable elastic rope 35 after passing around the fixed pulley 36. The other end of the retractable elastic rope 35 is connected to the bottom of the upper pull plate 14 in the water outlet chamber 4, and when the upper pull plate 14 moves up and down, the pull rope 37 can be driven by the retractable elastic rope 35 to pull the corresponding movable plate 34 to rotate. The rotation of the movable plate 34 can open or close the corresponding connecting hole 33 between the two adjacent levels of the horizontal energy dissipation units, and synchronously close or open the corresponding water outlet hole 32 on the lower energy dissipation bin 27. When the amount of upstream water entering the water inlet chamber 1 changes, the upper pull plate 14 moves upward or downward, and the pull rope 37 is driven by the retractable elastic rope 35 to drive the corresponding movable plate 34 to rotate, which can open or close the corresponding connecting hole 33 between the two adjacent levels of the lateral energy dissipation units, and then open or close the corresponding flow channel between the two adjacent levels of the lateral energy dissipation units; and synchronously close or open the corresponding water outlet hole 32 on the lower energy dissipation bin 27, and then close or open the corresponding flow channel between the remaining lateral energy dissipation units except the last level of the lateral energy dissipation unit and the water outlet chamber 4; thereby automatically switching the corresponding water flow energy dissipation channel according to the different flow rates of the upstream water entering the water inlet chamber 1, and realizing differentiated energy dissipation according to different upstream water volumes.

[0043] Optionally, the elastic coefficient of the retractable elastic cord 35 corresponding to the upper-level transverse energy dissipation unit in two adjacent levels of the transverse energy dissipation units is smaller than the elastic coefficient of the retractable elastic cord 35 corresponding to the lower-level transverse energy dissipation unit. By setting the elastic coefficient of the retractable elastic cord 35 of the upper-level transverse energy dissipation unit to be smaller than the elastic coefficient of the retractable elastic cord 35 of the lower-level transverse energy dissipation unit, as the amount of upstream water entering the water inlet chamber 1 increases, the corresponding connecting holes 33 between the upper and lower adjacent transverse energy dissipation units can be gradually opened, and the corresponding water outlet holes 32 of the lower energy dissipation chamber 27 can be synchronously closed, thereby achieving differentiated energy dissipation based on different upstream water inflows. Here, the retractable elastic cord 35 is naturally in a relaxed state, but can be sequentially straightened and stretched under the continuously increasing upward pulling force of the upper pull plate 14.

[0044] In one or more embodiments of the present invention, an openable or closable manhole cover 8 is provided on the top of the shaft 5. The manhole cover 8 is provided to facilitate maintenance.

[0045] The operation of a drainage well with energy dissipation function of the present invention is as follows: before there is no water upstream, the upper spring 16, the lower spring 17, the retractable side wall 18, the vertical spring 23, the transverse spring 31, the retractable elastic rope 35, the retractable side plate 39, each of the reset springs, the horizontal energy dissipation plate 22, the energy dissipation baffle 29, the vertical energy dissipation baffle 30, and the movable plate 34 are all in an initial state, that is, each of the springs and the retractable side wall are in a natural state, the retractable elastic rope 35 is in a relaxed state, and each of the reset springs is in an untwisted state. The bottom of the horizontal energy dissipation plate 22 is higher than the top of the horizontal water inlet port 24, each of the energy dissipation baffles 29 does not rotate under the torsion of the corresponding reset spring, each of the vertical energy dissipation baffles 30 does not compress the horizontal spring 31, and each of the movable plates 34 completely closes the corresponding connecting hole 33 and completely opens the corresponding water outlet hole 32, that is, the flow passage between the lower energy dissipation bin 27 of the horizontal energy dissipation unit at each level and the water outlet chamber 4 is completely open, and the flow passage between the lower energy dissipation bin 27 of the horizontal energy dissipation unit at each level and the upper energy dissipation bin 25 of the horizontal energy dissipation unit at the next level is completely closed.

[0046] When the upstream water enters the water inlet chamber 1 through the water inlet pipe 6, the water level of the water inlet chamber 1 rises, thereby floating the floating block 40, which in turn pulls the upper pull plate 14 upward, thereby driving the upper spring 16 and the retractable side plate 39 to stretch, and then pulls the lower pull plate 15 upward to drive the lower spring 17 and the retractable side wall 18 to stretch, thereby forming an upper flow channel between the upper pull plate 14 and the lower pull plate 15, and a lower flow channel between the lower pull plate 15 and the bottom wall of the water inlet chamber 1. The flow channel, the water flow in the water inlet chamber 1 is divided into two parts: one part is the upper water flow flowing into the upper flow channel, and the other part is the lower water flow flowing into the lower flow channel. Since the elastic coefficient of the upper spring 16 and the retractable side plate 39 is different from the elastic coefficient of the lower spring 17 and the retractable side wall 18, under the same buoyancy pulling effect, the height of the upper flow channel and the lower flow channel are different, so the flow rates of the corresponding upper water flow and lower water flow are also different, and as The continuous change of the water flow from the upstream drainage pipe causes the water level of the water inlet chamber 1 to change accordingly, so the height reached by the upper pull plate 14 and the lower pull plate 15 pulled by the floating block 40 also changes accordingly, so the height of the upper flow channel and the lower flow channel also changes accordingly, and the upper water flow rate and the lower water flow rate also change accordingly, that is, the driving mechanism can realize the dynamic distribution of the upstream water according to the different water flow rates of the water inlet pipe 6; the upper water flow out of the upper flow channel After entering the upstream energy dissipation cylinder 10 from the upstream water inlet port 9 and falling downward, the retractable side wall 18 is stretched, so that the distance between the energy dissipation sheets 20 in the upstream energy dissipation cylinder 10 is also pulled apart. Therefore, in the process of falling in the upstream energy dissipation cylinder 10, the water flow passes through the step-by-step obstruction and energy dissipation of the energy dissipation sheets 20 in sequence, and then flows into the vertical energy dissipation chamber 2 from the upstream water outlet port 19; and the lower layer water flow flowing out of the lower layer flow channel directly enters the vertical energy dissipation chamber 2 from the water inlet port 38;

[0047] When the upper water flow and the lower water flow fall into the vertical energy dissipation chamber 2, the two water flows are first mixed through the drain bucket 21, and then fall downward to the top of the horizontal energy dissipation plate 22. The falling water flow impacts the horizontal energy dissipation plate 22 and then compresses the vertical spring 23 to achieve energy dissipation. At the same time, the vertical spring 23 pulls the horizontal energy dissipation plate 22 downward during compression, so that the horizontal energy dissipation plate 22 moves below the horizontal water inlet orifice 24. At this time, the water flow on the upper part of the horizontal energy dissipation plate 22 is divided into two parts. A smaller part of the water flows into the water outlet chamber 4 through the drain hole 11, and most of the water flows into the horizontal energy dissipation chamber 3 through the horizontal water inlet orifice 24.

[0048] The water flow entering the transverse energy dissipation chamber 3 first enters the upper energy dissipation chamber 25 of the first-stage transverse energy dissipation unit. During the flow in the upper energy dissipation chamber 25, the water flow forms a vortex through the staggered energy dissipation vortex blades 28 to dissipate energy. The water flow after energy dissipation enters the corresponding middle energy dissipation chamber 26. During the flow in the middle energy dissipation chamber 26, the water flow impacts the staggered energy dissipation baffles 29 to rotate around the inner transverse plate 13 and the side wall of the middle energy dissipation chamber 26, twisting during the rotation. The corresponding return spring absorbs energy, and the water flow after energy dissipation enters the corresponding lower energy dissipation bin 27. During the flow in the lower energy dissipation bin 27, the water impacts the vertical energy dissipation baffle 30, causing it to slide freely in the lower energy dissipation bin 27 and then compress the transverse spring 31 to dissipate energy. At the same time, the water flows out from the water-permeable holes on each of the vertical energy dissipation baffles 30 in sequence, thereby achieving uniform water distribution and steady flow. After energy dissipation and steady flow, the water flows out from the lower energy dissipation bin 27 of the first-stage transverse energy dissipation unit;

[0049] As described above, when the water level of the water inlet chamber 1 rises, thereby floating the floating block 40 and then pulling the upper pull plate 14 upward, the upper pull plate 14 moves upward and simultaneously pulls the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit. At this time, the water level of the water inlet chamber 1 has not reached the corresponding set water level, and the upper pull plate 14 has not moved to the corresponding set height. Therefore, at this time, the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit are still in a relaxed state and have not been straightened or stretched. Therefore, the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit have not passed through the corresponding pull rope 37. Pull the corresponding movable plate 34, so that the movable plates 34 of the first-level lateral energy dissipation unit and the second-level lateral energy dissipation unit still completely close the corresponding connecting holes 33 and completely open the corresponding water outlet holes 32, so the flow channels of the lower energy dissipation bin 27 of the first-level lateral energy dissipation unit and the second-level lateral energy dissipation unit and the water outlet chamber 4 are completely open, and the flow channels of the lower energy dissipation bin 27 of the first-level lateral energy dissipation unit and the upper energy dissipation bin 25 of the second-level lateral energy dissipation unit are completely closed, so the water flowing out of the lower energy dissipation bin 27 of the first-level lateral energy dissipation unit enters the water outlet chamber 4, and flows out from the outlet pipe 7 at the bottom of the side wall of the water outlet chamber 4 and is discharged into the downstream drainage pipe.

[0050] As the amount of water from upstream increases, after it enters the water inlet chamber 1 through the water inlet pipe 6, the water level of the water inlet chamber 1 continues to rise, thereby floating the floating block 40 and then pulling the upper pull plate 14 upward, thereby pulling the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit. When the water level of the water inlet chamber 1 reaches a certain set water level, the upper pull plate 14 moves to the corresponding set height, and the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit is just in a straightened state. Since the elastic coefficients of the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit are different, at this time The retractable elastic rope 35 of the second-stage lateral energy dissipation unit is still in a relaxed state and is not in a straightened state. Thereafter, as the amount of water flowing into the upstream drainage pipe continues to increase, the water level of the water inlet chamber 1 also continues to rise, thereby floating the floating block 40 and then pulling the upper pull plate 14 upward, thereby pulling the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit. Therefore, the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit, which is in a straightened state, begins to pull the corresponding movable plate 34 through the pull rope 37, while the retractable elastic rope 35 corresponding to the second-stage lateral energy dissipation unit, which is still in a relaxed state, has not yet passed through the pull rope 37. The pull rope 37 pulls the corresponding movable plate 34, so the movable plate 34 corresponding to the lower energy dissipation bin 27 of the first-stage transverse energy dissipation unit begins to rotate around the corresponding partition transverse plate 12 while twisting the corresponding reset spring, and gradually opens the corresponding connecting hole 33 but does not completely close the corresponding water outlet hole 32, so that the flow channel between the first-stage transverse energy dissipation unit and the water outlet chamber 4 is still partially open, and at the same time, the flow channel between the lower energy dissipation bin 27 of the first-stage transverse energy dissipation unit and the upper energy dissipation bin 25 of the second-stage transverse energy dissipation unit is partially opened, and the movable plate 34 corresponding to the second-stage transverse energy dissipation unit still completely closes the corresponding connecting hole 33 and is still fully open. Corresponding to the water outlet hole 32, therefore, the flow passage between the lower energy dissipation bin 27 of the second-stage said lateral energy dissipation unit and the upper energy dissipation bin 25 of the third-stage said lateral energy dissipation unit is still completely closed, and the flow passage between the energy dissipation bin 27 of the second-stage said lateral energy dissipation unit and the water outlet chamber 4 is still completely open, so the water flow out of the lower energy dissipation bin 27 of the first-stage said lateral energy dissipation unit is divided into two parts, one part enters the water outlet chamber 4 through the partially opened water outlet hole 32 corresponding to the lower energy dissipation bin 27 of the first-stage said lateral energy dissipation unit, and the other part enters the second-stage said lateral energy dissipation unit through the partially opened connecting hole 33 corresponding to the lower energy dissipation bin 27 of the first-stage said lateral energy dissipation unit.The water then passes through the upper energy dissipation chamber 25, the middle energy dissipation chamber 26, and the lower energy dissipation chamber 27 of the second-stage transverse energy dissipation unit for energy dissipation. The dissipated water flows through the outlet holes 32 corresponding to the lower energy dissipation chamber 27 of the second-stage transverse energy dissipation unit and enters the outlet chamber 4. The two water flows are mixed in the outlet chamber 4 and then flow out of the outlet pipe 7 at the bottom of the side wall of the outlet chamber 4 and into the downstream drainage pipe.

[0051] As the amount of water from upstream continues to increase, after it enters the water inlet chamber 1 through the water inlet pipe 6, the water level of the water inlet chamber 1 continues to rise, thereby floating the floating block 40 and then pulling the upper pull plate 14 upward, thereby pulling the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit. When the water level of the water inlet chamber 1 reaches another set water level, the upper pull plate 14 moves to the corresponding set height. Since the elastic coefficients of the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit are different, the retractable elastic rope 35 corresponding to the second-stage lateral energy dissipation unit is just in a straightened state, and at this time, the retractable elastic rope corresponding to the first-stage lateral energy dissipation unit is 35 is just in a stretched state. At this time, the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit pulls the corresponding movable plate 34 through the pull rope 37, so that the movable plate 34 has just completely closed the water outlet hole 32 and completely opened the connecting hole 33, that is, the flow passage between the first-stage lateral energy dissipation unit and the water outlet chamber 4 is completely closed, and the flow passage between the lower energy dissipation bin 27 of the first-stage lateral energy dissipation unit and the upper energy dissipation bin 25 of the second-stage lateral energy dissipation unit is completely opened. Thereafter, due to the blocking effect of the retaining pier 42, the retractable elastic rope 35 continues to pull the movable plate 34 through the stretching 37, and the movable plate 34 can no longer continue to rotate toward the side of the water outlet chamber 4, and the retractable elastic rope 35 continues to be in a stretched state.At the same time, the retractable elastic rope 35 corresponding to the second-stage lateral energy dissipation unit, which is in a straightened state, begins to pull the corresponding movable plate 34 through the pull rope 37, so that the movable plate 34 begins to rotate around the corresponding inner plate 41 while twisting the corresponding reset spring, and gradually opens the corresponding connecting hole 33 but does not completely close the corresponding water outlet hole 32, so that the flow passage between the lower energy dissipation bin 27 of the second-stage lateral energy dissipation unit and the upper energy dissipation bin 25 of the third-stage lateral energy dissipation unit is partially opened, and the flow passage between the second-stage lateral energy dissipation unit and the water outlet chamber 4 is partially opened, so that the water flowing out from the lower energy dissipation bin 27 of the first-stage lateral energy dissipation unit completely flows into the second-stage lateral energy dissipation unit, and passes through the second-stage lateral energy dissipation unit in turn. The upper energy dissipation bin 25, the middle energy dissipation bin 26, and the lower energy dissipation bin 27 of the unit dissipate energy. After energy dissipation, the water flow is divided into two parts. One part enters the water outlet chamber 4 through the partially opened water outlet holes 32 corresponding to the second-stage horizontal energy dissipation unit, and the other part enters the third-stage horizontal energy dissipation unit through the partially opened communication holes 33 corresponding to the second-stage horizontal energy dissipation unit. The water flow then dissipates energy by sequentially passing through the upper energy dissipation bin 25, the middle energy dissipation bin 26, and the lower energy dissipation bin 27 of the third-stage horizontal energy dissipation unit. After energy dissipation, the water flow enters the water outlet chamber 4 through the water outlet holes 32 corresponding to the lower energy dissipation bin 27 of the third-stage horizontal energy dissipation unit. After the two parts of water flow mix in the water outlet chamber 4, they flow out of the water outlet pipe 7 at the bottom of the side wall of the water outlet chamber 4 and are discharged into the downstream drainage pipe.

[0052] As the amount of water from upstream continues to increase, after it enters the water inlet chamber 1 through the water inlet pipe 6, the water level of the water inlet chamber 1 continues to rise, thereby floating the floating block 40 and then pulling the upper pull plate 14 upward, thereby pulling the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit. When the water level of the water inlet chamber 1 reaches another set water level, the upper pull plate 14 moves to the corresponding set height, and the retractable elastic rope 35 corresponding to the first-stage lateral energy dissipation unit and the second-stage lateral energy dissipation unit are both in a stretched state. The movable plate 34 corresponding to the lower energy dissipation bin 27 of the first-stage lateral energy dissipation unit still completely closes the water outlet 32 ​​and fully opens the connecting hole 33, that is, the flow passage between the first-stage lateral energy dissipation unit and the water outlet chamber 4 is still completely closed, and the flow passage between the lower energy dissipation bin 27 of the first-stage lateral energy dissipation unit and the upper energy dissipation bin 25 of the second-stage lateral energy dissipation unit is still completely closed. The channel is still fully open, and at the same time, the movable plate 34 corresponding to the lower energy dissipation bin 27 of the second-stage transverse energy dissipation unit completely closes the water outlet 32 ​​and fully opens the connecting hole 33, that is, the flow passage between the second-stage transverse energy dissipation unit and the water outlet chamber 4 is completely closed, and the flow passage between the lower energy dissipation bin 27 of the second-stage transverse energy dissipation unit and the upper energy dissipation bin 25 of the third-stage transverse energy dissipation unit is also fully opened. Therefore, the water flowing out of the lower energy dissipation bin 27 of the first-stage transverse energy dissipation unit flows into the second-stage transverse energy dissipation unit and the third-stage transverse energy dissipation unit in turn for energy dissipation, and the water flow after energy dissipation completely enters the water outlet chamber 4, and flows out from the water outlet pipe 7 at the bottom of the water outlet chamber 4 and is discharged into the downstream drainage pipe; in addition, similar to the above, due to the blocking effect of the retaining pier 42 on the movable plate 34, the retractable elastic rope 35 corresponding to the first-stage transverse energy dissipation unit and the second-stage transverse energy dissipation unit are both in a stretched state.

[0053] When water no longer comes from upstream, the water retained in the water inlet chamber 1 enters the vertical energy dissipation chamber 2 through the upper flow channel and the lower flow channel, passes through the upstream energy dissipation cylinder 10 and the water inlet hole 38, and then enters the water outlet chamber 4 through the drain hole 11, and flows out from the water outlet pipe 7 at the bottom of the side wall of the water outlet chamber 4 and is discharged into the downstream drainage pipe, thereby draining the water retained in the water inlet chamber 1. After the water retained in the water inlet chamber 1 is drained, under the action of the restoring force of each of the springs, the retractable side wall 18, the retractable side plate 39, and the retractable elastic rope 35, the upper spring 16, the lower spring 17, the retractable side wall 18, the vertical spring 23, the transverse spring 31, the retractable elastic rope 35, the retractable side plate 39, the reset springs, the horizontal energy dissipation plate 22, the energy dissipation baffle 29, the vertical energy dissipation baffle 30, and the movable plate 34 all return to their initial states.

[0054] During maintenance, the well cover 8 at the top of the wellbore 5 can be opened, and maintenance personnel or equipment can enter the well of the present invention from the wellbore 5 to perform maintenance work.

[0055] The drainage well with energy dissipation function of the present invention has the following advantages:

[0056] 1) Pre-dissipate energy of the upper water flow: By automatically dividing the upstream water into upper and lower water flows, and dissipating the energy of the upper water flow first, and then mixing it with the lower water flow to dissipate the energy together, the adverse effect of the upper water flow on the energy dissipation of the lower water flow is eliminated, solving the problem of poor energy dissipation effect caused by the traditional drainage well with energy dissipation function that simultaneously eliminates the potential energy of the upper and lower water flows;

[0057] 2) Fully utilize vertical space energy dissipation: A combined energy dissipation mode of vertical energy dissipation and multi-level horizontal energy dissipation is adopted to fully utilize the vertical space of the drainage well for energy dissipation. This not only reduces the plane size of the drainage well, reduces the floor space and investment, but also achieves better energy dissipation effect;

[0058] 3) Stable outflow pattern: Through the stabilizing effect of the vertical energy dissipation baffles in the horizontal energy dissipation units at all levels, the outflow pattern is relatively stable, with less impact on the downstream pipeline;

[0059] 4) Adaptive energy dissipation: Based on the different upstream water volumes, the drive mechanism, pull mechanism, and movable plate work together to sequentially open different levels of lateral energy dissipation units to dissipate energy accordingly. This effectively improves the adaptability of the drainage well with energy dissipation function to changes in water volume and enhances energy dissipation efficiency.

[0060] 5) Protect the drainage well structure: Through the combined energy dissipation mode of vertical energy dissipation and multi-level horizontal energy dissipation, the large impact of water flow on the well body in the traditional drainage well with a one-time large drop water drop method with energy dissipation function is overcome, thereby protecting the well structure.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drainage well with energy dissipation function, characterized by: The invention comprises a water inlet chamber (1), a vertical energy dissipation chamber (2), a horizontal energy dissipation chamber (3), a water outlet chamber (4) and a wellbore (5), wherein the water inlet chamber (1), the vertical energy dissipation chamber (2) and the horizontal energy dissipation chamber (3) are sequentially connected and arranged from top to bottom, and the water outlet chamber (4) is located at the lower part of the water inlet chamber (1) and on the same side as the vertical energy dissipation chamber (2) and the horizontal energy dissipation chamber (3), and is respectively arranged adjacent to and connected with the vertical energy dissipation chamber (2) and the horizontal energy dissipation chamber (3). A drive mechanism and an upstream energy dissipation cylinder (10) connected to the vertical energy dissipation chamber (2) are provided therein, a vertical energy dissipation mechanism is provided in the vertical energy dissipation chamber (2), a plurality of horizontal energy dissipation units are provided in series from top to bottom in the horizontal energy dissipation chamber (3), and the adjacent horizontal energy dissipation units are connected to each other, all the horizontal energy dissipation units are respectively connected to the water outlet chamber (4), the upper part of the water outlet chamber (4) is separated from the water inlet chamber (1) by a retractable side plate (39), the drive mechanism and the upstream energy dissipation cylinder (10), a plurality of pulling mechanisms are provided in the water outlet chamber (4), and the remaining horizontal energy dissipation units except the last horizontal energy dissipation unit from top to bottom are each provided with a corresponding movable plate (34 ) and the pulling mechanism, and the driving mechanism can drive the pulling mechanism to pull the movable plate (34) to rotate, the rotation of the movable plate (34) can open or close the flow passage between the corresponding two adjacent levels of the lateral energy dissipation units, and synchronously close or open the flow passage between the corresponding remaining lateral energy dissipation units except the last level of the lateral energy dissipation unit and the water outlet chamber (4), the bottom of the side wall of the water inlet chamber (1) away from the water outlet chamber (4) is connected to a water inlet pipe (6), the bottom of the side wall of the water outlet chamber (4) away from the side of the lateral energy dissipation chamber (3) is connected to a water outlet pipe (7), and the wellbore (5) is arranged at the top of the water inlet chamber (1) and is connected to the water inlet chamber (1); The driving mechanism comprises an upper pull plate (14), an upper spring (16), a lower pull plate (15) and a lower spring (17) which are arranged in sequence from top to bottom. The upper end of the upper spring (16) is connected and fixed to the bottom of the upper pull plate (14) on the side close to the water inlet pipe (6). The lower end of the upper spring (16) is connected and fixed to the top of the lower pull plate (15) on the side close to the water inlet pipe (6). The upper end of the lower spring (17) is connected and fixed to the bottom of the lower pull plate (15) on the side close to the water inlet pipe (6). The lower end of the lower spring (17) is connected and fixed to the bottom wall of the water inlet chamber (1) close to the water inlet pipe (6), a floating block (40) is provided at the bottom of the upper pull-up plate (14) close to the water inlet pipe (6), the upper end of the retractable side plate (39) is connected and fixed to the bottom of the upper pull-up plate (14) close to the water outlet pipe (7), and the lower end of the retractable side plate (39) is connected and fixed to the top of the lower pull-down plate (15) close to the water outlet pipe (7).

2. The drainage well with energy dissipation function according to claim 1, characterized in that: The top of the upstream energy dissipation cylinder (10) is connected and fixed to the bottom of the pull-down plate (15) on the side close to the outlet pipe (7), and the bottom of the upstream energy dissipation cylinder (10) is connected and fixed to the bottom wall of the water inlet chamber (1) on the side close to the outlet pipe (7). The top of the upstream energy dissipation cylinder (10) is communicated with the water inlet chamber (1) through an upstream water inlet opening (9) provided on the pull-down plate (15) on the side close to the outlet pipe (7), and the bottom of the upstream energy dissipation cylinder (10) is communicated with the vertical energy dissipation chamber (2) through an upstream water outlet opening (19) provided on the bottom wall of the water inlet chamber (1) on the side close to the outlet pipe (7). The upper ends of all the pulling mechanisms are respectively connected to the bottom of the upper pull plate (14) located in the outlet chamber (4), and the upper pull plate (14) can drive each of the pulling mechanisms to move up and down when it moves up and down.

3. The drainage well with energy dissipation function according to claim 2, characterized in that: The upstream energy dissipation cylinder (10) comprises a retractable side wall (18) and a plurality of energy dissipation sheets (20), wherein the retractable side wall (18) is arranged between the pull-down plate (15) and the bottom wall of the water inlet chamber (1), and each of the energy dissipation sheets (20) is arranged on the inner wall of the retractable side wall (18) in an alternating manner, and each of the energy dissipation sheets (20) can move up and down together with the retractability of the retractable side wall (18).

4. The drainage well with energy dissipation function according to claim 3 is characterized in that: The elastic coefficients of the upper spring (16) and the retractable side plate (39) are both the first elastic coefficient, the elastic coefficients of the lower spring (17) and the retractable side wall (18) are both the second elastic coefficient, and the first elastic coefficient is not equal to the second elastic coefficient.

5. The drainage well with energy dissipation function according to claim 2, characterized in that: The bottom wall of the water inlet chamber (1) close to the water outlet pipe (7) is provided with a water inlet hole (38), the top of the vertical energy dissipation chamber (2) away from the water outlet pipe (7) is connected to the water inlet chamber (1) through the water inlet hole (38), the top of the vertical energy dissipation chamber (2) close to the water outlet pipe (7) is connected to the upstream energy dissipation cylinder (10) through the upstream water outlet hole (19), the lower part of the side wall of the vertical energy dissipation chamber (2) away from the water outlet chamber (4) is provided with a horizontal water inlet hole (24) connected to the horizontal energy dissipation chamber (3), the side wall of the vertical energy dissipation chamber (2) close to the water outlet chamber (4) is provided with a water drain hole (11) connected to the water outlet chamber (4), and the vertical energy dissipation chamber (2) is provided with a water drain bucket (21) and a water drain hole (24) that can open or close the horizontal water inlet hole (24) in sequence from top to bottom. ), the drain hopper (21) is located below the water inlet hole (38) and the upper water outlet port (19), and the vertical energy dissipation mechanism is slidably arranged in the vertical energy dissipation chamber (2). In a natural state, the top of the vertical energy dissipation mechanism is at the same height as the bottom of the drain hole (11), and the vertical energy dissipation mechanism closes the horizontal water inlet port (24). When the upstream water entering the water inlet chamber (1) enters the vertical energy dissipation chamber (2) through the upper water outlet port (19) and / or the water inlet hole (38), the water flows through the drain hopper (21) and falls into the top of the vertical energy dissipation mechanism, and drives the vertical energy dissipation mechanism to move downward, thereby gradually opening the horizontal water inlet port (24), and then opening the connecting channel between the vertical energy dissipation chamber (2) and the horizontal energy dissipation chamber (3).

6. The drainage well with energy dissipation function according to claim 5, characterized in that: The vertical energy dissipation mechanism comprises a horizontal energy dissipation plate (22) and a vertical spring (23). The horizontal energy dissipation plate (22) is movably arranged in the vertical energy dissipation chamber (2). In a natural state, the top of the horizontal energy dissipation plate (22) is at the same height as the bottom of the drain hole (11), and the bottom of the horizontal energy dissipation plate (22) is higher than the top of the transverse water inlet opening (24). The upper end of the vertical spring (23) is connected to the bottom of the horizontal energy dissipation plate (22), and the lower end of the vertical spring (23) is fixed to the bottom wall of the vertical energy dissipation chamber (2). The water flow falling from the drain bucket (21) can drive the horizontal energy dissipation plate (22) to move downward and gradually open the transverse water inlet opening (24), thereby opening the connecting channel between the vertical energy dissipation chamber (2) and the transverse energy dissipation chamber (3), and synchronously compressing the vertical spring (23).

7. The drainage well with energy dissipation function according to claim 5, characterized in that: The multi-level transverse energy dissipation units are arranged adjacent to each other in sequence and separated by a partitioning transverse plate (12). The transverse energy dissipation units include a horizontally arranged upper energy dissipation bin (25), a vertically arranged middle energy dissipation bin (26), and a horizontally arranged lower energy dissipation bin (27) that are connected in sequence. The middle energy dissipation bin (26) of the transverse energy dissipation units at the same level is arranged on the same side of the upper energy dissipation bin (25) and the lower energy dissipation bin (27) away from the water outlet chamber (4) and is respectively connected to the upper energy dissipation bin (25) and the lower energy dissipation bin (27). The upper energy dissipation bin (25) and the lower energy dissipation bin (27) in each level of the transverse energy dissipation units are arranged adjacent to each other in sequence and separated by an inner transverse plate (13). From top to bottom, the first level of the transverse energy dissipation units The side wall of the upper energy dissipation chamber (25) close to the water outlet chamber (4) is communicated with the side wall of the vertical energy dissipation chamber (2) close to the water inlet pipe (6) through the horizontal water inlet opening (24), and the top wall of the upper energy dissipation chamber (25) close to the water outlet chamber (4) of the remaining horizontal energy dissipation units except the first-stage horizontal energy dissipation unit is communicated with the bottom wall of the lower energy dissipation chamber (27) close to the water outlet chamber (4) of the upper-stage horizontal energy dissipation unit through the communication hole (33) provided on the corresponding dividing horizontal plate (12), and the top wall of the upper energy dissipation chamber (25) close to the water outlet chamber (4) of the remaining horizontal energy dissipation units except the first-stage horizontal energy dissipation unit is communicated with the bottom wall of the lower energy dissipation chamber (27) close to the water outlet chamber (4) of the upper-stage horizontal energy dissipation unit The side of the middle energy dissipation chamber (26) is separated from the water outlet chamber (4) by an inner side plate (41); the upper part of the side wall of the middle energy dissipation chamber (26) close to the upper energy dissipation chamber (25) is communicated with the side wall of the upper energy dissipation chamber (25) away from the water outlet chamber (4); the lower part of the side wall of the middle energy dissipation chamber (26) close to the upper energy dissipation chamber (25) is communicated with the side wall of the lower energy dissipation chamber (27) away from the water outlet chamber (4); a water outlet hole (32) communicating with the water outlet chamber (4) is provided on the side wall of the lower energy dissipation chamber (27) close to the water outlet chamber (4), and a retaining pier (42) is provided corresponding to the top of the water outlet hole (32). Except for the last level of the horizontal energy dissipation unit, the rest of the horizontal energy dissipation units are connected. The movable plate (34) capable of opening or closing the connecting hole (33) and the water outlet hole (32) is rotatably provided on the dividing transverse plate (12) corresponding to the lower energy dissipation bin (27) of the transverse energy dissipation unit, close to the water outlet chamber (4). The pulling mechanism is connected to the corresponding movable plate (34) and can drive the movable plate (34) to rotate. The movable plate (34) rotates to open or close the connecting hole (33) and thereby open or close the flow passage between the corresponding two adjacent transverse energy dissipation units, and simultaneously close or open the water outlet hole (32) and thereby close or open the flow passage between the corresponding remaining transverse energy dissipation units and the water outlet chamber (4) except for the last transverse energy dissipation unit.The side wall of the lower energy dissipation chamber (27) of the last-stage horizontal energy dissipation unit close to the water outlet chamber (4) is connected to the water outlet chamber (4) through the corresponding water outlet hole (32). The upper energy dissipation chamber (25) is provided with an energy dissipation vortex plate group, the middle energy dissipation chamber (26) is provided with an energy dissipation baffle plate group, and the lower energy dissipation chamber (27) is provided with an energy dissipation movable baffle plate group.

8. The drainage well with energy dissipation function according to claim 7, characterized in that: The energy dissipation vortex plate group includes a plurality of curved energy dissipation vortex plates (28) arranged in an up-down staggered manner along the horizontal flow direction of the water flow, and the energy dissipation baffle plate group includes a plurality of energy dissipation baffle plates (29) arranged in an up-down staggered manner along the flow direction of the water flow, each of the energy dissipation baffle plates (29) being rotatably arranged on the inner side wall of the corresponding middle energy dissipation bin (26) away from the upper energy dissipation bin (25) and the end of the corresponding inner transverse plate (13) away from the water outlet chamber (4), and the energy dissipation movable baffle plate group includes a plurality of curved energy dissipation vortex plates (28) arranged in an up-down staggered manner along the horizontal flow direction of the water flow, A vertical energy dissipation baffle (30) and a plurality of horizontally arranged transverse springs (31), wherein the vertical energy dissipation baffles (30) are sequentially arranged at intervals, and except for the last vertical energy dissipation baffle (30) close to the water outlet (32) which is fixedly arranged in the lower energy dissipation bin (27), the remaining vertical energy dissipation baffles (30) are all slidably arranged in the lower energy dissipation bin (27), and two adjacent vertical energy dissipation baffles (30) are connected by the transverse springs (31), and water permeable holes are evenly arranged on each vertical energy dissipation baffle (30).

9. The drainage well with energy dissipation function according to claim 7, characterized in that: The pulling mechanism comprises a retractable elastic rope (35), a fixed pulley (36) and a pull rope (37). The fixed pulley (36) is arranged on the inner side wall of the water outlet chamber (4) near the lower energy dissipation chamber (27). One end of the pull rope (37) is connected to the corresponding movable plate (34). The other end of the pull rope (37) passes around the fixed pulley (36) and is connected to one end of the retractable elastic rope (35). The other end of the retractable elastic rope (35) is connected to the bottom of the upper pull plate (14) located in the water outlet chamber (4). When the upper pull plate (14) moves up and down, the pull rope (37) can be driven by the retractable elastic rope (35) to pull the corresponding movable plate (34) to rotate. The rotation of the movable plate (34) can open or close the corresponding connecting hole (33) between the two adjacent levels of the horizontal energy dissipation units, and synchronously close or open the corresponding water outlet hole (32) on the lower energy dissipation chamber (27).

10. The drainage well with energy dissipation function according to claim 9, characterized in that: The elastic coefficient of the retractable elastic rope (35) corresponding to the upper-level transverse energy dissipation unit in two adjacent levels of transverse energy dissipation units is smaller than the elastic coefficient of the retractable elastic rope (35) corresponding to the lower-level transverse energy dissipation unit.

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