A water gate buffering protection mechanism
By introducing components such as guide channels, guide plates, buffer sleeves, and support mechanisms into the sluice gate, the problem of sluice gate damage caused by water flow impact has been solved, the safe and stable operation of the sluice gate has been achieved, and the maintenance frequency and risk have been reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-28
AI Technical Summary
Sluice gates are prone to fatigue damage under the impact of water flow, leading to frequent maintenance and safety hazards.
Design a sluice gate buffer protection mechanism, including a flow guide channel, a flow guide plate, a buffer sleeve, a flow diversion unit and a support mechanism. It reduces the impact force of water flow on the gate plate through flow guidance, buffering, diversion and support, and reduces the torque on the drive shaft by using elastic components and support rods.
It effectively reduces the impact of water flow on the sluice gate, lowers maintenance difficulty, improves safety, reduces safety hazards, and extends the service life of the sluice gate.
Smart Images

Figure CN120443609B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sluice gate protection equipment, and specifically to a sluice gate buffer protection mechanism. Background Technology
[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.
[0003] A sluice gate is a low-head hydraulic structure built on rivers and canals to control flow and regulate water levels. Closing the gates can impound floods, block tides, or raise upstream water levels to meet the needs of irrigation, power generation, navigation, aquaculture, environmental protection, industry, and domestic water use. Opening the gates can release floodwaters, waterlogged water, wastewater, or polluted water, and can also supply water to downstream rivers or canals. In water conservancy projects, sluice gates are widely used as structures for impounding, releasing, or drawing water. In larger rivers or lakes, the water inside is not in a stable state due to the influence of its own potential energy, tidal energy, and wind energy. This causes the sluice gate to be constantly impacted by the water flow, reducing the fatigue strength of some components and leading to damage. Therefore, sluice gates require frequent maintenance and repair during use, increasing labor intensity and posing certain safety hazards. Summary of the Invention
[0004] The main objective of this invention is to provide a protective mechanism for sluice gates.
[0005] To achieve the above objectives, a sluice gate buffer protection mechanism includes symmetrically arranged power chambers, a guide bar connected between the two power chambers, a drive shaft connected between the two power chambers, a gate plate connected to the drive shaft, the drive shaft being used to drive the gate plate to rotate and change the water flow interception height, the gate plate being provided with multiple water flow buffering and guiding guide grooves, and the top of the gate plate being provided with a guide plate for guiding the flow, the guide plate being used to guide the backflow disturbance of the water flow, and the guide plate adopting an arc-shaped structure;
[0006] Furthermore, a flow-disrupting mechanism is also installed inside the flow channel to turbulent the impact water.
[0007] Furthermore, the flow disturbance mechanism includes an installation groove that is slidably fitted inside the flow guide groove. A flexible buffer sleeve is provided at the bottom of the installation groove. The buffer sleeve is fixed relative to the flow guide groove and is filled with water. Multiple flow diversion units slide inside the installation groove for water diversion and energy dissipation, and for water flow buffering. The multiple flow diversion units are connected in sequence.
[0008] Furthermore, the transfer unit includes a movable box that can be slidably installed in the mounting groove. A return bucket is fixedly connected to the movable box, and a rotating pipe is rotatably connected to the middle of the return bucket. A collection bucket is provided at one end of the rotating pipe, and multiple drive plates are also connected to the outer wall of the rotating pipe. An impact sleeve is also provided at the bottom of the movable box, and multiple elastic components are provided inside the impact sleeve. Multiple return pipes are connected to both sides of the movable box for backflow and backflushing of liquid in the movable box. A guide pipe is fixedly connected to the middle of the movable box on the same side as the return pipe. A connecting pipe is connected between two guide pipes located on the same movable box. The connecting pipe has a smaller diameter than the guide pipe and is used for water pressurization. One end of the connecting pipe is connected to the impact sleeve. A supplementary pipe connected to the buffer sleeve is connected to the bottom of the impact sleeve. A slidable sleeve is sleeved between the guide pipes located on two adjacent movable boxes. The sleeve is fixed relative to the mounting groove. A flow control pipe connected to the outside is connected to the middle of the sleeve. A flow control valve is connected to the flow control pipe.
[0009] Furthermore, the bottom end of the buffer sleeve is connected to a series pipe, and the other end of the series pipe is connected to a temporary support unit for reducing the lever arm.
[0010] Furthermore, the temporary support unit includes a through strip connected to the riverbed, the through strip being connected to the series pipe, and multiple support telescopic rods fixedly connected to the through strip. The fixed end of the support telescopic rod is connected to the through strip, and the actuating end of the support telescopic rod is fixedly connected to a support plate. The support plate is matched with the drive shaft. When the gate is subjected to impact, the support plate contacts the drive shaft to reduce the torque of the drive shaft.
[0011] Furthermore, a support mechanism is provided on the outside of the drive shaft to mitigate instantaneous impacts. The support mechanism is connected to a temporary support unit, which is used to support and stabilize the drive shaft.
[0012] Furthermore, the support mechanism includes a fixed box that is fixed relative to the riverbed, a mounting box connected to the fixed box, a bearing installed inside the fixed box, and an interference fit between the drive shaft and the bearing.
[0013] Furthermore, a diversion block is fixedly connected to one side of the mounting box, and multiple mixing holes are provided on the diversion block. A protective sleeve connects the fixed box and the mounting box.
[0014] Furthermore, the turbulence mechanism includes multiple rotating disks disposed within the guide channel. The rotating disks are rotatably connected to the gate. The gate is hollow and contains multiple support columns. One end of the rotating disk is connected to a generator located within the gate. Multiple irregularly shaped pieces are fixedly connected to one side of the rotating disk located within the guide channel.
[0015] Furthermore, a cutting strip is provided between the two guide channels, and a flexible waterproof strip is provided between the gate and the power chamber.
[0016] The beneficial effects of this invention are reflected in:
[0017] This invention mitigates localized impacts by guiding the flow through guide channels and guide plates. Simultaneously, the elasticity of the buffer sleeve and its water transfer properties reduce instantaneous impacts. Furthermore, the combination of a rotating inlet pipe and a return pipe creates mixed flow, and the rotating drive plate further reduces the impact and redirects the water flow, thus forming a coordinated buffer. This reduces the force of the water contacting the gate plate. During the water impact process, the pressure from the supplementary pipe and the shaped plate forces the internal components into the support telescopic rod, pushing the support plate to provide auxiliary support for the drive shaft, thereby reducing the torque and stress on other devices, and lowering the impact force. Combined with a movable arc-shaped block, this forms a continuous instantaneous buffer system, adapting to sudden large impacts and prolonged periodic impacts, protecting critical components of the sluice gate, increasing its safety, eliminating most safety hazards, reducing maintenance difficulty, and lowering risks. Attached Figure Description
[0018] In the attached diagram:
[0019] Figure 1 This is a front-view perspective structural diagram of the present invention;
[0020] Figure 2 This is a rear-view perspective structural diagram of the present invention;
[0021] Figure 3 This is a three-dimensional structural diagram of the temporary support unit;
[0022] Figure 4 For the front-view three-dimensional structural diagram of the supporting mechanism;
[0023] Figure 5 This is a three-dimensional structural diagram of the transfer unit;
[0024] Figure 6 This is a front-view 3D structural diagram of the mobile box;
[0025] Figure 7 This is a partial front-view 3D structural diagram of the movable box;
[0026] Figure 8 This is a front-view stereoscopic structural diagram of Example 5;
[0027] Figure 9 for Figure 8 Enlarged diagram of point A.
[0028] Explanation of reference numerals in the attached figures:
[0029] 01. Power chamber; 02. Gate; 03. Guide plate; 04. Guide channel; 05. Guide strip; 06. Rotating disk; 07. Shaped piece; 08. Cutting strip; 09. Control tube; 13. Fixed box; 14. Through strip; 15. Support telescopic rod; 16. Mounting slot; 17. Buffer sleeve; 18. Guide tube; 19. Moving box; 20. Sleeve; 21. Return pipe; 22. Return hopper; 23. Drive plate; 24. Collection hopper; 25. Rotating tube; 26. Elastic component; 27. Supplementing pipe; 28. Connecting pipe; 29. Impact sleeve; 30. Support plate; 31. Mounting box; 32. Bearing; 33. Series pipe; 35. Diverter block; 36. Mixing hole; 43. Protective sleeve. Detailed Implementation
[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0031] Example 1: See Figures 1 to 7 ;
[0032] This invention discloses a sluice gate buffer protection mechanism, including symmetrically arranged power chambers 01, a guide bar 05 connected between the two power chambers 01, a drive shaft connected between the two power chambers 01, a gate plate 02 connected to the drive shaft, a plurality of water flow buffer and guiding guide grooves 04 provided on the gate plate 02, and a guide plate 03 for guiding flow on the top of the gate plate 02. When the water flow impacts the gate plate 02, it is guided by the guide grooves 04 and the guide plate 03, so that the water flow has an upward tendency, and then overflows or flows back through the guide plate 03, relieving part of the impact force to achieve the protection of the sluice gate. The power chambers 01 are provided with a power component for rotating the drive shaft to flip the gate plate 02 and realize the water flow guidance.
[0033] In one embodiment, a turbulence-inducing mechanism is also provided in the guide channel 04 to buffer the impact water. The turbulence-inducing mechanism further turbulents the water to ensure the safety and stability of the gate 02 and the drive shaft, and further ensures the safety and stability of the power components.
[0034] In one embodiment, a cutting strip 08 is provided between the two guide channels 04, and a flexible waterproof strip is provided between the gate 02 and the power chamber 01. The cutting strip 08 performs local water flow cutting and guiding, so that the water flow impacting the gate 02 is locally disturbed. The waterproof strip seals the gap between the two sides of the gate 02 and the power chamber 01, ensuring the function of the sluice gate.
[0035] Example 2: Figure 1 , Figure 2 and Figure 6-8 As shown, the difference between this embodiment and Embodiment 1 lies in the different turbulence mechanism;
[0036] In this embodiment, the flow disturbance mechanism includes an installation groove 16 slidably fitted inside the flow guide groove 04. A flexible buffer sleeve 17 is provided at the bottom of the installation groove 16. The buffer sleeve 17 is fixed relative to the flow guide groove 04 and is filled with water. Multiple flow diversion units are slidably fitted inside the installation groove 16 for water diversion and energy dissipation, and water flow buffering. The multiple flow diversion units are connected in sequence. When the water flow impacts the buffer sleeve 17, the water in the buffer sleeve 17 flows out through one side. Since the outflow rate of the liquid is constant, a certain degree of buffering can be achieved. The flow diversion units divert the water flow and dissipate energy, thus removing the corresponding instantaneous impact and periodic impact.
[0037] In the second embodiment, the diversion unit includes a movable box 19 that can be slidably fitted into the mounting groove 16. A return bucket 22 is fixedly connected to the movable box 19, and a rotating pipe 25 is rotatably connected to the middle of the return bucket 22. A collecting bucket 24 is provided at the top of the rotating pipe 25, and multiple driving plates 23 are connected to the outer wall of the rotating pipe 25. When the water flow impacts the movable box 19, it can drive the movable box 19 to move up and down along the mounting groove 16 for initial stress relief and mixing. At the same time, some water flows into the movable box 19 through the collecting bucket 24 and the rotating pipe 25. The synchronously flowing water can drive the driving plates 23 to rotate, further reducing the pressure. The mixing and unloading of water, and the dispersion of water around the return bucket 22 when some water comes into contact with it, forming a reverse flow, further mixing the water and unloading it from multiple directions, reducing the instantaneous local impact. Friction blocks are also connected to the outside of the rotating pipe 25, which contact the return bucket 22 to slow down the rotation speed of the rotating pipe 25. An impact sleeve 29 is also provided at the bottom of the moving box 19, containing multiple elastic components 26. Multiple return pipes 21 are connected to both sides of the moving box 19 for backflow and flushing of the liquid within the moving box 19. A guide pipe 18 is fixedly connected to the middle of the moving box 19 on the same side as the return pipes 21. A connecting pipe 28 connects two guide pipes 18 on the same movable box 19. One end of the connecting pipe 28 is connected to the impact sleeve 29. The bottom of the impact sleeve 29 is connected to a supplementary pipe 27 connected to the buffer sleeve 17. A slidable sleeve 20 is fitted between the guide pipes 18 on two adjacent movable boxes 19. The sleeve 20 is fixed relative to the mounting groove 16. A flow control pipe 09 connected to the outside is connected to the middle of the sleeve 20. A flow control valve is connected to the flow control pipe 09. Water entering the movable box 19 impacts the impact sleeve 29 for instantaneous buffering. At the same time, the water overflows through the return pipe 21 and mixes again, achieving the effect of... The system continues to buffer and unload the impact water flow. During the impact movement of the moving box 19, the space in the sleeve 20 is changed, so that the external water, after being controlled by the flow control valve, enters the impact sleeve 29 through the connecting pipe 28, and further enters the buffer sleeve 17 through the replenishment pipe 27, exerting a reverse force on the vertical impact. When the vertical impact is too large, the fluid flow can also form a reverse force for buffering and depressurization. At the same time, the combination of multiple devices forms multiple unloading mixed flow states, reducing local instantaneous impacts, and the mixed flow reduces subsequent peak impacts, thereby protecting the safety of the sluice gate.
[0038] Example 3: Figures 1-7 As shown. The difference between this embodiment and Embodiment 1 lies in the temporary support unit;
[0039] In this embodiment, the bottom end of the buffer sleeve 17 is also connected to a series pipe 33, and the other end of the series pipe 33 is connected to a temporary support unit for reducing the lever arm. The series pipe 33 guides the flow of the buffer sleeve 17 and then delivers it into the snack support unit, triggering the snack support unit to perform its action.
[0040] In the three embodiments, the temporary support unit includes a through strip 14 connected to the riverbed, which is connected to the series pipe 33. Multiple support telescopic rods 15 are fixedly connected to the through strip 14. The fixed end of the support telescopic rod 15 is connected to the through strip 14, and the execution end of the support telescopic rod 15 is fixedly connected to a support plate 30. The support plate 30 is matched with the drive shaft. Water entering the moving box 19 enters the support telescopic rod 15, causing the execution end of the support telescopic rod 15 to move. The extension of the support telescopic rod 15 causes the support plate 30 to contact the drive shaft, thereby reducing the torque on the drive shaft, protecting the stability and installation of the drive shaft. After the drive shaft is stabilized, it can provide better support force to the gate 02, thereby further ensuring the safety and stability of the gate 02 and reducing its deformation.
[0041] Example 4: Figures 1-7 As shown. The difference between this embodiment and Embodiment 1 lies in the different support mechanism;
[0042] In this embodiment, a support mechanism for mitigating instantaneous impact is also provided on the outside of the drive shaft. The support mechanism is connected to the temporary support unit. The support mechanism provides long-term support for the drive shaft and can provide a certain buffer when subjected to impact, ensuring the safety of the support shaft and the gate 02.
[0043] In the four embodiments, the support mechanism includes a fixed box 13 that is fixed relative to the riverbed. The fixed box 13 is connected to an installation box 31. A bearing 32 is provided inside the installation box 31. The drive shaft is interference-fitted with the bearing 32. The installation of the two boxes facilitates the installation of the entire gate 02 and the drive shaft.
[0044] In the four embodiments, a diversion block 35 is fixedly connected to one side of the mounting box 31. The diversion block 35 is provided with a plurality of mixing holes 36. A protective sleeve 43 is connected between the fixed box 13 and the mounting box 31. The mixing holes 36 cut the water flow that impacts the mounting box 31 from the bottom. At the same time, the mixing holes 36 guide and mix part of the water flow, thereby further reducing the instantaneous impact.
[0045] Example 5: Figure 8 and Figure 9 As shown, the difference between this embodiment and Embodiment 1 lies in the different turbulence mechanism;
[0046] In this embodiment, the turbulence mechanism includes multiple rotating disks 06 disposed within the guide channel 04. The rotating disks 06 are rotatably connected to the gate 02. The gate 02 is hollow and contains multiple support columns. One end of the rotating disk 06 is connected to a generator located within the gate 02. Multiple irregularly shaped pieces 07 are fixedly connected to one side of the rotating disk 06 located within the guide channel 04. When the impacting water flow hits the gate 02, some of the water flow is guided out through the gate 02 and the guide channel 04, achieving a certain degree of mixed flow disturbance. Simultaneously, the flow of water drives the irregularly shaped pieces 07 to rotate, further driving the rotating disk 06 and the drive end of the generator to rotate, generating electricity and dissipating energy, reducing the impact, and recovering some energy. Furthermore, the rotation of the irregularly shaped pieces 07 causes local water mixing, achieving a disturbance effect and reducing the impact on the gate 02.
[0047] The above are merely preferred embodiments of the present invention and are 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 within the protection scope of the present invention.
[0048] It should be noted that if the embodiments of the invention involve directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0049] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.
Claims
1. A sluice gate buffer protection mechanism, characterized in that, It includes symmetrically arranged power chambers (01), with a guide strip (05) connecting the two power chambers (01), and a drive shaft connecting the two power chambers (01). A gate plate (02) is connected to the drive shaft, and the drive shaft is used to drive the gate plate (02) to rotate. The gate plate (02) is provided with multiple water flow buffer and guidance channels (04), and the top of the gate plate (02) is also provided with a guide plate (03) for guiding the flow. The guide plate (03) is used for guiding the backflow disturbance of the water flow, and the guide plate (03) adopts an arc-shaped structure. The guide channel (04) is also equipped with a turbulence mechanism for turbulence of the impact water; The turbulence mechanism includes an installation groove (16) that is slidably sleeved in the guide groove (04). A flexible buffer sleeve (17) is provided at the bottom of the installation groove (16). The buffer sleeve (17) is fixed relative to the guide groove (04). The buffer sleeve (17) is elastic and filled with water. Multiple flow-shifting units slide in the installation groove (16) for water diversion and energy unloading, and for water flow buffering. The multiple flow-shifting units are connected in sequence. The transfer unit includes multiple movable boxes (19) slidably disposed in the mounting groove (16). A return bucket (22) is fixedly connected to the movable box (19). A rotating tube (25) is rotatably connected to the middle of the return bucket (22). A collection bucket (24) is provided at one end of the rotating tube (25). Multiple drive plates (23) are also connected to the outer wall of the rotating tube (25). An impact sleeve (29) is also provided at the bottom of the movable box (19). Multiple elastic components (26) are provided inside the impact sleeve (29). Multiple return pipes (21) are connected to both sides of the movable box (19) for backflow and flushing of the liquid in the movable box (19). The middle of the movable box (19) on the same side as the return pipe (21) is... A guide pipe (18) is fixedly connected between the two guide pipes (18) located on the same movable box (19). A connecting pipe (28) is connected between the two guide pipes (18). The connecting pipe (28) has a smaller diameter than the guide pipe (18) and is used for water pressurization. The middle part of the connecting pipe (28) is connected to the impact sleeve (29). The bottom of the impact sleeve (29) is connected to the supplementary pipe (27) connected to the buffer sleeve (17). A slidable sleeve (20) is sleeved between the guide pipes (18) located on two adjacent movable boxes (19). The sleeve (20) is fixed relative to the mounting groove (16). A flow control pipe (09) connected to the outside is connected in the middle of the sleeve (20). A flow control valve is connected to the flow control pipe (09).
2. The sluice gate buffer protection mechanism according to claim 1, characterized in that, The bottom end of the buffer sleeve (17) is also connected to a series pipe (33), and the other end of the series pipe (33) is connected to a temporary support unit. The temporary support unit is distributed along the length of the drive shaft and supports the drive shaft from the side.
3. A sluice gate buffer protection mechanism according to claim 2, characterized in that, The temporary support unit includes a through strip (14) fixed to the riverbed, the through strip (14) being connected to the series pipe (33), and a plurality of support telescopic rods (15) being fixedly connected to the through strip (14). The fixed end of the support telescopic rod (15) is connected to the through strip (14), and the execution end of the support telescopic rod (15) is fixedly connected to a support plate (30). The support plate (30) is matched with the drive shaft. When the gate (02) is subjected to impact, the support plate (30) contacts the drive shaft to reduce the torque of the drive shaft.
4. A sluice gate buffer protection mechanism according to claim 3, characterized in that, The outer side of the drive shaft is also provided with a support mechanism for mitigating instantaneous impact. The support mechanism is connected to a temporary support unit and is used to support and stabilize the drive shaft.
5. A sluice gate buffer protection mechanism according to claim 4, characterized in that, The support mechanism includes a fixed box (13) that is fixed relative to the riverbed. The fixed box (13) is connected to an installation box (31). A bearing (32) is provided inside the fixed box (13). The drive shaft is interference-fitted with the bearing (32).
6. A sluice gate buffer protection mechanism according to claim 5, characterized in that, A diversion block (35) is fixedly connected to one side of the mounting box (31). The diversion block (35) is provided with multiple mixing holes (36). A protective sleeve (43) is connected between the fixed box (13) and the mounting box (31).
7. A sluice gate buffer protection mechanism according to claim 1, characterized in that, A cutting strip (08) is provided between the two flow channels (04), and a flexible waterproof strip is provided between the gate (02) and the power chamber (01).