Safety monitoring equipment facility for dam of hydraulic power plant

By designing a retrieval frame structure with switchable rotating base points in the monitoring equipment of hydropower plant dams, the problem of poor scum removal was solved, and effective scum removal and accurate flow monitoring were achieved.

CN121877121APending Publication Date: 2026-04-17TIANSHENGQIAO TWO HYDROPOWER CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANSHENGQIAO TWO HYDROPOWER CO LTD
Filing Date
2026-02-07
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing open channel flow meters are not effective at removing scum in hydropower plant dam monitoring, affecting measurement accuracy and equipment reliability.

Method used

Design a hydropower plant dam safety monitoring device that allows the retrieval frame to switch its rotation base point in the horizontal direction. Through the cooperation of filter plates, retrieval frame, support components and control components, the retrieval frame can be transformed from a vertical state to a horizontal state, and can move and rotate horizontally to ensure effective cleaning of floating scum.

Benefits of technology

It improves the scum removal effect, ensures the normal flow of water and accurate measurement by flow monitoring equipment, avoids scum falling back to the water surface, and enhances the reliability and measurement accuracy of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of flow monitoring facilities, and discloses a hydraulic power plant dam safety monitoring facility which comprises a flow monitoring device, a filter plate located in front of the flow monitoring device and a fishing frame movably attached to the surface of the filter plate, and the fishing frame is in a vertical state based on the filter plate and located on the edge of the filter plate. A supporting assembly used for supporting the fishing frame is arranged on the surface of the filter plate, and a control assembly used for driving the supporting assembly is arranged in the filter plate. Through cooperation of the filter plate, the salvage frame, the supporting assembly, the control assembly and the like, the rotating base point of the salvage frame can be horizontally transferred to the position above the ground from the position above the water surface, grooving and digging machining does not need to be conducted on the ground, it can be guaranteed that all the salvaged scum can be transferred to the ground after the salvage frame rotates subsequently, and the salvage efficiency is improved. And the situation that part of scum falls back to the water surface when the fishing frame rotates on the water surface is avoided, and the scum cleaning effect can be effectively improved.
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Description

Technical Field

[0001] This invention relates to the field of flow monitoring facilities technology, and in particular to a safety monitoring equipment and facility for a hydropower plant dam. Background Technology

[0002] Open channel flow meters are frequently used in dam monitoring to monitor the flow of various open channel systems associated with the dam. This is to ensure the overall water system management and dam safety. The open channel flow meters need to take into account the effects of high sand content and scum (dried branches, plastic) in the water flow; otherwise, blockage and siltation will directly affect the measurement accuracy and equipment reliability.

[0003] For example, Chinese Patent Publication No. CN116576926B discloses a device for measuring the flow rate of a terminal irrigation channel, including a Parshall flume. Sealed boxes are fixedly connected to both sides of the Parshall flume. A trigger box is fixedly connected to the inner wall of the right-side sealed box. Water inlet pipes are fixedly connected to both the front and rear sides of the sealed boxes. One end of each water inlet pipe inside the sealed box is fixedly connected to the side wall of the trigger box. Connecting rings are fixedly connected to the front and rear inner walls of the trigger box. Water bladders are fixedly connected to the side walls of the two connecting rings that are close to each other. A dredging net frame is installed in front of the Parshall flume in the open channel to prevent dead branches and weeds from entering the flume. When dead branches and weeds cause blockages in the open channel, the device automatically removes them from the channel without manual intervention. This timely removal prevents blockages from delaying irrigation.

[0004] The movement trajectory of the dredging net frame in this application is to first rise vertically and then rotate to discharge slag. Its rotation base point does not change in the vertical direction, which means that when the dredging net frame rotates to discharge slag, some of the floating slag may fall back into the water along the dredging net frame, affecting the effective cleaning of floating slag and having certain limitations in use.

[0005] Therefore, it is necessary to provide a safety monitoring device for hydropower plant dams to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a safety monitoring device for hydropower plant dams to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a hydropower plant dam safety monitoring equipment and facilities is designed that allows the retrieval frame to switch its rotation base point in the horizontal direction, thereby ensuring effective cleaning of floating slag.

[0008] Based on the above ideas, the present invention provides the following technical solution: a safety monitoring equipment for a hydropower plant dam, comprising a flow monitoring device, a filter plate located in front of the flow monitoring device, and a retrieval frame that is movably attached to the surface of the filter plate. The retrieval frame is vertically positioned based on the filter plate and located at the edge of the filter plate. A support component for supporting the retrieval frame is provided on the surface of the filter plate, and a control component for driving the support component is provided inside the filter plate. The control component first drives the retrieval frame from a vertical state to a horizontal state through the support component, then drives the retrieval frame to move horizontally, and finally drives the retrieval frame to continue rotating in the same direction.

[0009] As a further embodiment of the present invention: the control component includes a cylinder and a push rod fixedly installed inside the filter plate, the output shaft of the cylinder is fixedly mounted with a bracket, the inside of the bracket is elastically connected to a side plate corresponding to the position of the support component and the push rod through a second spring, and a rack that is drively connected to the support component is fixedly installed on the bracket.

[0010] As a further aspect of the present invention: the surface of the side plate extends into the bracket and forms a crossbar, and a second spring is fixedly installed between the crossbar and the bracket, the second spring causing the crossbar to drive the side plate to have a tendency to move in the direction of the bracket.

[0011] As a further aspect of the present invention: a gap is provided between the side plate and the support assembly, and the gap between the side plate and the support assembly gradually decreases when the bracket moves.

[0012] As a further aspect of the present invention: the bracket is designed in an L-shape and the bracket and the side plate together form an inverted U-shape; when the bracket is reset, the L-shaped design can drive the support components to reset synchronously.

[0013] As a further aspect of the present invention: the surface of the side plate is provided with an opening for avoiding the rack.

[0014] As a further embodiment of the present invention: the support assembly includes a base slidably installed inside the filter plate, the base being located between the bracket and the side plate, a first spring being fixedly installed between the base and the filter plate, a round rod fixedly connected to the retrieval frame being sleeved inside the base, and a gear rotatably installed on the base that rotates synchronously with the round rod and is connected to the rack and pinion drive.

[0015] As a further embodiment of the present invention: the top rod and the side plate are located on both sides of the base, the base and the top rod are offset front to back, and the gear and the top rod are offset vertically, so that the top rod can pass through from below the round rod and gradually approach the side plate.

[0016] As a further aspect of the present invention: the surface of the top rod is provided with a protruding component corresponding to the position of the retrieval frame, which contacts the protruding component when the retrieval frame continues to rotate in the same direction.

[0017] As a further aspect of the present invention: the protruding component includes an extension plate fixedly mounted on the top rod, the top of the extension plate being elastically connected to a spacer corresponding to the position of the retrieval frame via a third spring, and a slide rod inserted into the extension plate being fixedly mounted at the bottom of the spacer.

[0018] Compared with the prior art, the beneficial effects of the present invention are: through the cooperation between the filter plate, the retrieval frame, the support components and the control components, the retrieval frame can be driven from a vertical state to a horizontal state. In this process, the sediment accumulated at the bottom can be stirred up to ensure the normal passage of water flow and the accurate measurement of subsequent flow monitoring equipment. It can also scoop up the floating scum on the water surface, thereby further ensuring the accurate measurement of flow monitoring equipment.

[0019] Next, the retrieval frame can be moved horizontally towards the ground, so that the rotation base of the retrieval frame is transferred horizontally from above the water surface to above the ground. Without the need for trenching and excavation of the ground, it can be ensured that after the retrieval frame rotates, all the scum can be transferred to the ground, avoiding the situation where some scum falls back into the water when the retrieval frame rotates on the water surface, which can effectively improve the cleaning effect of scum.

[0020] Finally, the retrieval frame can be rotated again towards the ground. At this time, the original top surface of the retrieval frame can be flipped downwards. Combined with the adjustment of the rotation base point of the retrieval frame, it can be ensured that all the scum retrieved is transferred to the ground, thereby ensuring the cleaning effect of the scum and the subsequent use of the filter plate. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the filter plate and cavity structure of the present invention; Figure 3 This is a schematic diagram of the base and support structure of the present invention; Figure 4 This is a schematic diagram of the top rod and side plate structure of the present invention; Figure 5 This is a schematic diagram of the support and crossbar structure of the present invention; Figure 6 This is a schematic diagram of the round rod and retrieval frame structure of the present invention; Figure 7 This is a schematic diagram of the top rod and protruding assembly structure of the present invention; Figure 8 This is a schematic diagram of the extension plate and spacer structure of the present invention; Figure 9 This is a schematic diagram of the cavity and corrugated plate structure of the present invention; Figure 10 This is a schematic diagram of the annular groove and guide post structure of the present invention.

[0022] In the diagram: 1. Ground; 2. Flow monitoring equipment; 3. Filter plate; 4. Retrieval frame; 5. Support assembly; 6. Control assembly; 7. Protruding assembly; 8. Wave plate; 301. Cavity; 501. Base; 502. Round rod; 503. First spring; 504. Gear; 505. Annular groove; 506. Guide post; 601. Cylinder; 602. Top rod; 603. Bracket; 604. Side plate; 605. Rack; 606. Crossbar; 607. Second spring; 608. Opening; 701. Extension plate; 702. Spacer; 703. Slide rod; 704. Third spring; 705. Clearance groove. Detailed Implementation

[0023] Example 1: Please see Figures 1 to 6 This invention provides a safety monitoring device for a hydropower plant dam. By adjusting the rotation base point of a retrieval frame 4, the frame can effectively transfer floating scum from the water surface to the ground 1 after rotation. The device includes a flow monitoring device 2, a filter plate 3 located in front of the flow monitoring device 2, and a retrieval frame 4 that is movably attached to the surface of the filter plate 3. Both the flow monitoring device 2 and the filter plate 3 can be fixedly installed on the ground 1 during use. The flow monitoring device 2 can monitor the flow of various open channel systems associated with the dam, ensuring overall water system management and dam safety. The filter plate 3 can filter scum from the water flowing towards the flow monitoring device 2, thus ensuring the long-term stable performance of the device. The retrieval frame 4 is used to retrieve the scum filtered by the filter plate 3 and transfer it to the ground 1, ensuring effective filtration by the filter plate 3. The flow monitoring device 2, filter plate 3, and retrieval frame 4 are all existing mature technologies and will not be described in detail here.

[0024] In the above structure, such as Figure 1 As shown, the retrieval frame 4 is located on the side of the filter plate 3 away from the flow monitoring device 2, and the retrieval frame 4 is initially in a vertical state, with its bottom surface perpendicular to the flow monitoring device 2. At this time, the retrieval frame 4 only covers a small part of the area on both sides of the filter plate 3, and will not affect the filtration effect of the filter plate 3 on the scum.

[0025] Furthermore, such as Figure 2As shown, the surface of the filter plate 3 is provided with a support component 5 for supporting the retrieval frame 4, and the interior of the filter plate 3 is provided with a control component 6 for driving the support component 5. Correspondingly, a cavity 301 is opened on the surface of the filter plate 3 for the placement of the support component 5 and the control component 6. When the control component 6 is activated, the support component 5 can first drive the retrieval frame 4 from a vertical state to a horizontal state. During this process, the retrieval frame 4 slides along the surface of the filter plate 3, stirring up the silt accumulated at the bottom and scooping up the floating scum on the water surface. Then, the retrieval frame 4 is driven to move closer to the ground 1. At this time, the rotation base point of the retrieval frame 4 is adjusted from above the water surface to above the ground 1. Finally, the retrieval frame 4 is driven to rotate and discharge the scum onto the ground 1. The final rotation angle of the retrieval frame 4 is between 135 degrees and 180 degrees. At this time, the original top surface of the retrieval frame 4 can be flipped downwards, thereby discharging the scooped scum onto the ground 1.

[0026] In this embodiment, as Figure 1 As shown, in order to improve the cleaning effect of scum and the stirring effect of bottom mud and sand, the number of retrieval frames 4 can be set to two and distributed symmetrically from left to right. The two retrieval frames 4 are respectively arranged to fit against the ground 1, and the support components 5 and control components 6 are also increased accordingly. Subsequently, the two retrieval frames 4 rotate in sequence to ensure the cleaning range of the entire water surface area.

[0027] Reference Figures 3 to 5 In this embodiment, preferably, the support component 5 includes a base 501 slidably installed within the cavity 301. A first spring 503 is fixedly installed between the base 501 and the cavity 301, and the first spring 503 causes the base 501 to have a tendency to slide towards the control component 6. A round rod 502 fixedly connected to the retrieval frame 4 is sleeved inside the base 501. A gear 504, which rotates synchronously with the round rod 502 and is drively connected to the control component 6, is rotatably installed on the base 501. When the control component 6 is activated, the gear 504 first drives the round rod 502 to rotate, thereby completing the switch of the retrieval frame 4 from a vertical state to a horizontal state.

[0028] Specifically, such as Figure 3 As shown, the bottom of the cavity 301 may be provided with a dovetail groove for the base 501 to slide. The dovetail groove enables the base 501 to slide stably in the horizontal direction and prevents the base 501 from falling out of the cavity 301.

[0029] Reference Figures 3 to 6In this embodiment, preferably, the control component 6 includes a cylinder 601 and a push rod 602 fixedly installed in the cavity 301. A bracket 603 is fixedly installed on the output shaft of the cylinder 601. A side plate 604, corresponding to the positions of the base 501 and the push rod 602, is elastically connected inside the bracket 603 via a second spring 607. When the cylinder 601 is activated, it can drive the bracket 603 to move horizontally within the cavity 301, and the bracket 603 can drive the side plate 604 to move synchronously via the second spring 607. Simultaneously, a rack 605, which is connected to a gear 504, is fixedly installed on the bracket 603. When the bracket 603 moves horizontally, the rack 605 and the gear 504 can drive the round rod 502 to rotate.

[0030] Among them, such as Figure 5 As shown, the surface of the side plate 604 extends into the bracket 603 and forms a crossbar 606. The second spring 607 is fixedly installed between the crossbar 606 and the bracket 603. The second spring 607 causes the crossbar 606 to drive the side plate 604 to move towards the bracket 603, so that the side plate 604 can initially be in contact with the bracket 603.

[0031] In the above structure, such as Figure 5 As shown, a gap is provided between the side plate 604 and the base 501, so that when the bracket 603 moves, the round rod 502 can be rotated for the first time through the rack 605 and the gear 504, and at this time the side plate 604 moves closer to the base 501; when the retrieval frame 4 changes from a vertical state to a horizontal state, the side plate 604 and the base 501 are in contact, which can push the base 501 and the bracket 603 to move synchronously. It should be noted that the elastic force of the first spring 503 acting on the base 501 is less than the elastic force of the second spring 607 acting on the crossbar 606, so that although both the base 501 and the side plate 604 are movable, when the side plate 604 moves in contact with the base 501, the base 501 will first squeeze the first spring 503 and move synchronously with the bracket 603.

[0032] Specifically, such as Figure 4 As shown, the top rod 602 and the side plate 604 are distributed in a left-right correspondence. The base 501 and the top rod 602 are offset front-back, and the gear 504 and the top rod 602 are offset vertically. This allows the top rod 602 to pass under the round rod 502 and gradually approach the side plate 604 after the side plate 604 comes into contact with the base 501 and moves the base 501. When the top rod 602 abuts against the side plate 604, the side plate 604 can no longer move. At this time, the continued movement of the rack 605 driven by the bracket 603 will stretch the second spring 607. Since the side plate 604 no longer moves, the base 501 loses its horizontal pushing force and also stops moving. At this time, the movement of the rack 605 can drive the round rod 502 to rotate a second time through the gear 504, and the first rotation and the second rotation are in the same direction.

[0033] In this embodiment, as Figure 5 As shown, the end of the bracket 603 away from the cylinder 601 extends downward and corresponds to the side wall of the base 501 away from the side plate 604. At this time, the bracket 603 has an L-shaped design, and it can cooperate with the side plate 604 to form an inverted U-shape to cover the base 501 inside. When the bracket 603 moves to the left, its downward-extending end will not affect the movement of the base 501. When the bracket 603 resets, its downward-extending end can push the base 501 to reset along the cavity 301, thereby driving the round rod 502 and the retrieval frame 4 to reset accordingly.

[0034] Correspondingly, such as Figure 5 As shown, the side plate 604 has an opening 608 on its surface, and the rack 605 is located in the opening 608. This allows the rack 605 to move along the opening 608 when the side plate 604 stops moving after it is abutted by the top rod 602, thereby avoiding interference between the rack 605 and the side plate 604.

[0035] During use, the flow monitoring device 2 continuously monitors the water flow. After the filter plate 3 filters the scum for a period of time, the cylinder 601 is activated at a set time. The cylinder 601 drives the bracket 603, rack 605 and side plate 604 to move synchronously. At this time, because the scooping frame 4 is vertically attached to the ground 1 and the side plate 604 is not in contact with the base 501, the rack 605 can drive the round rod 502 to rotate through the gear 504, so that the scooping frame 4 changes from a vertical state to a horizontal state. At the same time, the side plate 604 can be attached to the side wall of the base 501. During this process, the scooping frame 4 can stir up the mud and sand at the bottom to prevent accumulation, and can also scoop up the scum floating on the water surface. Next, cylinder 601 drives bracket 603, rack 605, and side plate 604 to continue moving. At this time, side plate 604 pushes base 501 to move synchronously and compresses the first spring 503. Meanwhile, rack 605 and gear 504 move synchronously, causing round rod 502 and retrieval frame 4 to move synchronously, so that the rotation base of retrieval frame 4 changes from above the water surface to above the ground 1. At the same time, side plate 604 abuts against top rod 602, making side plate 604 unable to move further. Then, cylinder 601 drives bracket 603 and rack 605 to move synchronously. Since side plate 604 no longer moves, base 501 loses horizontal pushing force and no longer moves. At this time, the movement of rack 605, through gear 504 and round rod 502, can drive retrieval frame 4 to rotate in the same direction again, transferring the retrieved scum to the ground 1.

[0036] In summary, through the cooperation of structures such as the base 501, gear 504, side plate 604, and bracket 603, the round rod 502 can be rotated first, causing the retrieval frame 4 to change from a vertical state to a horizontal state. During this process, the silt accumulated at the bottom can be disturbed to ensure the normal passage of water flow and the accurate measurement of the subsequent flow monitoring device 2. The floating scum on the water surface can also be scooped up, thereby further ensuring the accurate measurement of the flow monitoring device 2.

[0037] Next, the round rod 502 and the retrieval frame 4 can be moved horizontally towards the ground 1, so that the rotation base point of the retrieval frame 4 is transferred horizontally from above the water surface to above the ground 1. Without the need for trenching and excavation of the ground, it can be ensured that after the retrieval frame 4 rotates, all the dredged scum can be transferred to the ground 1, avoiding the situation where some scum falls back into the water when the retrieval frame 4 rotates on the water surface, which can effectively improve the cleaning effect of scum.

[0038] Finally, the retrieval frame 4 can be rotated again towards the ground 1. At this time, the original top surface of the retrieval frame 4 can be flipped downwards. Combined with the adjustment of the rotation base point of the retrieval frame 4, it can be ensured that all the scum retrieved is transferred to the ground 1. This ensures the cleaning effect of the scum and the subsequent use effect of the filter plate 3, thus making the overall practicality higher.

[0039] Example 2: Please see Figures 1 to 8 Based on Embodiment 1, in order to further ensure the stable transfer of scum from the retrieval frame 4 to the ground 1, a protruding component 7 corresponding to the position of the retrieval frame 4 is provided on the surface of the top rod 602. When the retrieval frame 4 adjusts its rotation base point and rotates again, it can come into contact with the protruding component 7. At this time, the protruding component 7 can provide a vibration effect on the retrieval frame 4, thereby improving the detachment effect of scum from the retrieval frame 4.

[0040] Reference Figure 7 and Figure 8 In this embodiment, preferably, the protruding component 7 includes an extension plate 701 fixedly installed on the top rod 602. The top of the extension plate 701 is elastically connected to a spacer 702 corresponding to the position of the retrieval frame 4 via a third spring 704. When the retrieval frame 4 rotates again, it can contact the spacer 702. The third spring 704 causes the spacer 702 to tend to move upward away from the extension plate 701, so that after contacting the rotating retrieval frame 4, it can provide a vibration effect to the retrieval frame 4.

[0041] In this embodiment, as Figure 8 As shown, a slide rod 703 inserted into the extension plate 701 is fixedly installed at the bottom of the spacer 702. A third spring 704 is sleeved on the outer surface of the slide rod 703, which can improve the stability of the spacer 702 in the vertical direction and prevent the spacer 702 from shifting in the front-back direction after contacting the retrieval frame 4. A clearance groove 705 is also provided between the extension plate 701 and the top rod 602. The clearance groove 705 can prevent the retrieval frame 4 from rotating again, ensuring that after the top rod 602 abuts against the side plate 604 and the base 501 stops moving, the rotation of the retrieval frame 4 will not interfere with the extension plate 701.

[0042] In use, the base 501, side plate 604, and bracket 603, among other structures, first drive the retrieval frame 4 from a vertical to a horizontal position, then move it horizontally to switch the rotation base point, and finally rotate to discharge the scum. This part of the working process and effect is the same as in Embodiment 1, and will not be repeated here. The difference is that when the retrieval frame 4 finally rotates to discharge the scum, the flipped-down retrieval frame 4 can contact the spacer 702 and push the spacer 702 down along the extension plate 701. At this time, the spacer 702 can provide a vibration effect on the retrieval frame 4, improving the scum removal effect from the retrieval frame 4.

[0043] Compared to Embodiment 1, through the cooperation of structures such as the extension plate 701, the spacer 702, and the top rod 602, when the dredging frame 4 is flipped downwards to discharge scum, it can contact the spacer 702. The spacer 702 can move with the dredging frame 4 and provide a vibration effect on the dredging frame 4, thereby effectively reducing the scum residue on the dredging frame 4, improving the scum removal effect from the dredging frame 4, further ensuring the stable transfer of scum from the dredging frame 4 to the ground 1, and reducing the possibility that the scum will fall back into the water with the dredging frame 4 after being retrieved.

[0044] Example 3: Please see Figures 1 to 10 Based on Embodiment 2, to further ensure the stable transfer of scum from the retrieval frame 4 to the ground 1, the round rod 502 and the gear 504 are keyed together, meaning the gear 504 can drive the round rod 502 to rotate synchronously, and the round rod 502 can be displaced along the axial direction of the gear 504. Furthermore, an annular groove 505 is provided at the end of the round rod 502 near the cavity 301, and a guide post 506 is fixedly installed in the annular groove 505. A wave plate 8 is fixedly installed in the cavity 301, corresponding to the area where the round rod 502 rotates for the second time. This allows the guide post 506 to rotate with the round rod 502 and sequentially contact the wave plate 8 when the round rod 502 drives the retrieval frame 4 to rotate again to discharge scum. At this time, the guide post 506 can drive the round rod 502 and the retrieval frame 4 to reciprocate in the front-back direction, further improving the discharge effect of scum from the retrieval frame 4.

[0045] In order to realize the reciprocating movement of the round rod 502, a fourth spring (not shown in the figure) is fixedly installed between the round rod 502 and the base 501. The fourth spring makes the round rod 502 tend to move into the cavity 301. When the guide post 506 contacts the wave plate 8 and moves out of the cavity 301, the movement of the round rod 502 will stretch the fourth spring, thereby realizing the back-and-forth movement of the retrieval frame 4.

[0046] In use, the base 501, side plate 604, and bracket 603 can first drive the retrieval frame 4 from a vertical to a horizontal state, then move horizontally to switch the rotation base point and rotate to discharge scum. The extension plate 701, spacer 702, and top rod 602 can provide a vibration effect on the retrieval frame 4 to reduce scum residue on the retrieval frame 4. The working process and effect of this part are the same as in embodiment two, and will not be repeated here. The difference is that when the retrieval frame 4 changes from a vertical to a horizontal state and moves horizontally to switch the rotation base point, the round rod 502 drives the guide column 506 to move and always keeps it in a non-contact state with the wave plate 8. When the retrieval frame 4 finally rotates to discharge scum, the guide column 506 can contact the wave plate 8 and move along its surface. At this time, the fourth spring and the round rod 502 can drive the retrieval frame 4 to move back and forth. Combined with the vibration effect of the spacer 702, the scum residue on the retrieval frame 4 can be further reduced.

[0047] Compared to Embodiment 2, through the cooperation of structures such as the round rod 502, guide post 506, wave plate 8 and gear 504, when the dredging frame 4 rotates to discharge the scum, it can also drive the dredging frame 4 to move back and forth. Combined with the vibration effect of the spacer 702 on the dredging frame 4, the scum residue on the dredging frame 4 can be further reduced, ensuring the stable transfer of scum from the dredging frame 4 to the ground 1, and meeting the actual use requirements for effective scum removal.

Claims

1. A dam safety monitoring equipment and facility for a hydroelectric plant, comprising a flow monitoring equipment, a filter plate located in front of the flow monitoring equipment, and a salvage frame which is in active contact with the surface of the filter plate, characterized in that, The retrieval frame is vertically positioned based on the filter plate and located at the edge of the filter plate. The surface of the filter plate is provided with a support component for supporting the retrieval frame, and the interior of the filter plate is provided with a control component for driving the support component. The start control component first drives the retrieval frame from a vertical state to a horizontal state through the support component, then drives the retrieval frame to move horizontally, and finally drives the retrieval frame to continue rotating in the same direction.

2. The hydropower plant dam safety monitoring equipment facility of claim 1, wherein, The control component includes a cylinder and a push rod fixedly installed inside the filter plate. The output shaft of the cylinder is fixedly mounted on a bracket. The inside of the bracket is elastically connected to a side plate corresponding to the position of the support component and the push rod through a second spring. A rack that is drively connected to the support component is fixedly installed on the bracket.

3. The hydropower plant dam safety monitoring equipment facility of claim 2, wherein, The surface of the side plate extends into the bracket and forms a crossbar. A second spring is fixedly installed between the crossbar and the bracket. The second spring causes the crossbar to drive the side plate to move towards the bracket.

4. The hydropower plant dam safety monitoring equipment facility of claim 2, wherein, A gap is provided between the side plate and the support assembly, and the gap between the side plate and the support assembly gradually decreases when the bracket moves.

5. The hydropower plant dam safety monitoring equipment facility of claim 2, wherein, The bracket has an L-shaped design and the bracket and side plate together form an inverted U-shape; when the bracket is reset, the L-shaped design can drive the support components to reset synchronously.

6. The hydropower plant dam safety monitoring device installation of claim 2, wherein, The side plate has an opening on its surface to allow the rack to pass.

7. The hydropower plant dam safety monitoring equipment and facilities according to any one of claims 2-6, characterized in that, The support assembly includes a base that is slidably installed inside the filter plate. The base is located between the bracket and the side plate. A first spring is fixedly installed between the base and the filter plate. A round rod that is fixedly connected to the retrieval frame is sleeved inside the base. A gear that rotates synchronously with the round rod and is connected to the rack and pinion is rotatably installed on the base.

8. The hydropower plant dam safety monitoring equipment and facilities according to claim 7, characterized in that, The top rod and the side plate are located on both sides of the base. The base and the top rod are offset from front to back, and the gear and the top rod are offset from top to bottom, so that the top rod can pass through from below the round rod and gradually approach the side plate.

9. The hydropower plant dam safety monitoring equipment and facilities according to claim 7, characterized in that, The surface of the top rod is provided with a protruding component corresponding to the position of the retrieval frame, which contacts the protruding component when the retrieval frame continues to rotate in the same direction.

10. The hydropower plant dam safety monitoring equipment and facilities according to claim 9, characterized in that, The protruding component includes an extension plate fixedly mounted on the top rod. The top of the extension plate is elastically connected to a spacer corresponding to the position of the retrieval frame via a third spring. A slide rod inserted into the extension plate is fixedly mounted at the bottom of the spacer.

Citation Information

Patent Citations

  • A flow measurement device for the final stage of irrigation canal

    CN116576926B