Dam slope reinforcing device for pumped storage power station

Abstract

The utility model discloses a pumped storage power station dam slope reinforcing device, and relates to the technical field of dam slope reinforcement, the pumped storage power station dam slope reinforcing device comprises a slope protection plate, a plurality of anchor rods are installed on the rear side of the slope protection plate, the anchor rods comprise hollow anchor rods, two internal thread sleeves are fixedly connected to the front sides of the interiors of the hollow anchor rods, and the two internal thread sleeves are fixedly connected to the rear side of the slope protection plate. A threaded anchor rod is in threaded connection with the interior of the inner threaded sleeve, two openings are formed in the outer end of the hollow anchor rod, an anti-disengaging mechanism is installed in the hollow anchor rod, penetrates through the openings and extends to the outer side of the hollow anchor rod, and the anti-disengaging mechanism is located behind the inner threaded sleeve. The front side of the outer end of the hollow anchor rod is fixedly connected with a flange piece, and the slope protection plate and the flange piece are fixedly connected through bolts. The stability of the hollow anchor rod in soil is greatly improved through cooperation of the threaded anchor rod and the anti-falling mechanism, the whole anchor rod is matched with the slope protection plate, the dam slope of the energy storage power station can be fully reinforced, and the overall reinforcing effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to dam slope reinforcement technical field especially relates to a pumped storage power station dam slope reinforcement device. BACKGROUND

[0002] Pumped storage power station utilizes the electric energy of electric power load low valley to pump to upper reservoir, and generates electricity again to lower reservoir during electric power load peak period. It is also called energy storage type hydropower station. It can change the surplus electric energy of electric power load low time into high value electric energy of electric power load peak period, and is suitable for frequency modulation, phase modulation, stabilizes the cycle and voltage of electric power system, and is suitable for accident backup, and can improve the efficiency of thermal power station and nuclear power station in system. In the energy storage power station, the water in the reservoir flows out through the water outlet under the dam after impacting the generator impeller, and the water flow is guided to the downstream reservoir storage through the downstream dam slope. The dam slope is subjected to water flow impact for a long time, and the water flow can take away the soil on the surface, causing soil erosion. Therefore, the dam slope needs to be reinforced by the dam slope reinforcement device to reduce soil erosion.

[0003] Through retrieval, the Chinese patent number CN218436889U discloses a pumped storage power station dam slope reinforcement device, which comprises a slope protection plate, a plurality of anchoring mechanisms are arranged at the bottom of the slope protection plate, the anchoring mechanism comprises a reinforcing cylinder, a sharp end is arranged at the end of the reinforcing cylinder, an adjusting screw is arranged in the reinforcing cylinder, a threaded hole matched with the adjusting screw is arranged on the slope protection plate, a through groove is arranged on the side wall of the reinforcing cylinder for the pin plate to pass through, a protruding block corresponding to the pin plate is arranged on the adjusting screw, a driving slope is arranged outside the protruding block, and the lower end of the pin plate is supported on the driving slope.

[0004] The above-mentioned document increases a plurality of extendable pin plates on the conventional anchor rod, i.e. the reinforcing cylinder, to improve the stability of the reinforcing cylinder in the dam slope soil. Although the pin plates can indeed improve the stability of the reinforcing cylinder to some extent, there are still some deficiencies in actual use, such as the small size of the pin plates and the inability to provide gradually increasing resistance when the reinforcing cylinder is pulled out, which leads to the general reinforcement capacity. In order to solve the above-mentioned deficiencies, the present application provides a pumped storage power station dam slope reinforcement device. UTILITY MODEL CONTENTS

[0005] The utility model provides a pumped storage power station dam slope reinforcement device to solve the above-mentioned technical problems.

[0006] To solve the above technical problems, the utility model provides a kind of pumped storage power station dam slope reinforcing device, including revetment, the rear side of the revetment is equipped with multiple anchor rods, the anchor rod includes hollow anchor rod, two internal thread sleeves are fixedly connected in the front side of the inside of the hollow anchor rod, the internal thread sleeve is threadedly connected with threaded anchor rod, the threaded anchor rod is located in the inside of the hollow anchor rod and extends to the outside of the hollow anchor rod, two openings are formed in the outer end of the hollow anchor rod, the anti -drop mechanism is installed in the inside of the hollow anchor rod, and the anti -drop mechanism extends to the outside of the hollow anchor rod and is penetrated opening, the anti -drop mechanism is located in the rear of internal thread sleeve, the flange sheet is fixedly connected in the front side of the outer end of the hollow anchor rod, and the revetment and flange sheet are fixedly connected by bolt.

[0007] Preferably, the anti -drop mechanism includes connecting plate, the connecting plate is fixedly connected in the inside of the hollow anchor rod, the opening is adaptively installed with fin, the inboard of the fin is fixedly connected with connecting block, the connecting block and connecting plate are movably connected by pivot, the inboard of the fin is fixedly connected with arc block, the arc block is located in the front of connecting block, the inboard wall of the hollow anchor rod is fixedly connected with baffle, the baffle is located between two arc blocks, one spring is fixedly connected on the both sides of the baffle, and the end of the spring is abutted with arc block.

[0008] Preferably, the fin is integrally formed with the head piece in front side, and the head piece is located in the inside of the opening and extends to the outside of the hollow anchor rod.

[0009] Preferably, the arc block is formed with round hole in front side, the lock rod is connected in the inside of the round hole and extends to the front side of the hollow anchor rod.

[0010] Preferably, the threaded anchor rod is fixedly connected with internal hexagonal head in front side, and the internal hexagonal head is located in the front side of the internal thread sleeve.

[0011] Preferably, the rear side of the hollow anchor rod is fixedly connected with sharp cone.

[0012] Compared with the related art, the pumped storage power station dam slope reinforcing device has the following advantages:

[0013] By installing internal thread sleeve on the hollow anchor rod, and then threading a threaded anchor rod in the internal thread sleeve, compared with the hollow anchor rod, the threaded anchor rod inserted obliquely can improve the stability of the hollow anchor rod inserted in the dam slope, and the anti -drop mechanism in the hollow anchor rod can be inserted obliquely into the soil after the lock rod is pulled out, and can be gradually inserted deeper and at a larger angle into the soil when the hollow anchor rod is pulled out, greatly improving the stability of the hollow anchor rod in the soil, and the whole anchor rod and the revetment can fully reinforce the dam slope of the pumped storage power station, and the overall reinforcing effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a pumped storage power station dam slope reinforcement device proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the anchor structure of a pumped storage power station dam slope reinforcement device proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the hollow anchor structure of a pumped storage power station dam slope reinforcement device proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the threaded anchor structure of a pumped storage power station dam slope reinforcement device proposed in this utility model;

[0018] Figure 5 This is a schematic diagram of the anti-detachment mechanism of a pumped storage power station dam slope reinforcement device proposed in this utility model;

[0019] Figure 6 This is a schematic diagram of the fin structure of a pumped storage power station dam slope reinforcement device proposed in this utility model.

[0020] The following are the labels in the diagram: 1. Slope protection plate, 2. Hollow anchor bolt, 3. Flange plate, 4. Internal threaded sleeve, 5. Threaded anchor bolt, 6. Hexagonal head, 7. Cone, 8. Opening, 9. Fin, 10. Curved end plate, 11. Connecting block, 12. Connecting plate, 13. Arc-shaped block, 14. Round hole, 15. Partition plate, 16. Spring, 17. Locking rod. Detailed Implementation

[0021] Implementation examples, by Figures 1-6 The present invention includes a slope protection plate 1, with multiple anchor rods installed on the rear side of the slope protection plate 1. Each anchor rod includes a hollow anchor rod 2. Two internally threaded sleeves 4 are fixedly connected to the front side of the hollow anchor rod 2. Threaded anchor rods 5 are threadedly connected inside the internally threaded sleeves 4. The threaded anchor rods 5 are located inside the hollow anchor rod 2 and extend to the outside of the hollow anchor rod 2. Two openings 8 are formed at the outer end of the hollow anchor rod 2. An anti-detachment mechanism is installed inside the hollow anchor rod 2, and the anti-detachment mechanism penetrates the openings 8 and extends to the outside of the hollow anchor rod 2. The anti-detachment mechanism is located behind the internally threaded sleeves 4. A flange 3 is fixedly connected to the front side of the outer end of the hollow anchor rod 2. The slope protection plate 1 and the flange 3 are fixedly connected by bolts.

[0022] The anti-falling mechanism comprises a connecting plate 12 fixedly connected inside the hollow anchor rod 2, a fin 9 fitted and installed inside the opening 8, a connecting block 11 fixedly connected inside the fin 9, the connecting block 11 and the connecting plate 12 being movably connected through a rotating shaft, an arc-shaped block 13 fixedly connected inside the fin 9, the arc-shaped block 13 being located in front of the connecting block 11, a partition plate 15 fixedly connected to the inner wall of the hollow anchor rod 2, the partition plate 15 being located between the two arc-shaped blocks 13, one spring 16 fixedly connected to each side of the partition plate 15, the end of the spring 16 abutting against the arc-shaped block 13, a bent head piece 10 integrally formed and connected to the front side of the fin 9, the bent head piece 10 being located inside the opening 8 and extending to the outside of the hollow anchor rod 2. When the hollow anchor rod 2 is inside the dam slope soil, only the bent head piece 10 slightly protrudes from the outer wall of the hollow anchor rod 2, and according to the insertion direction of the hollow anchor rod 2, the outside of the bent head piece 10 is also arc-shaped, so it does not affect the insertion operation of the hollow anchor rod 2. At the same time, when the hollow anchor rod 2 is pulled out in the opposite direction, the fin 9 will also be gradually inserted into the soil at an angle due to the bent shape of the bent head piece 10, and the pushing of the spring 16, and the insertion angle will also become larger. The longer the depth of the fin 9 inserted into the soil, the larger the insertion angle, the greater the resistance provided by the fin 9 to the pulling out of the hollow anchor rod 2, thereby improving the stability of the slope protection plate 1 on the dam slope, and ultimately improving the reinforcement effect of the dam slope.

[0023] The front side of the arc-shaped block 13 is provided with a circular hole 14, and the circular hole 14 is penetrated and connected with a locking rod 17. The locking rod 17 is located inside the hollow anchor rod 2 and extends to the front side of the hollow anchor rod 2. When the anchor rod is installed, the locking rod 17 is inserted into the circular hole 14 in the arc-shaped block 13, so that the fin 9 cannot be pushed out by the spring 16 inside the opening 8. After installation is completed, the locking rod 17 is pulled out, and the fin 9 is no longer restricted and can be unfolded at will.

[0024] The front side of the threaded anchor rod 5 is fixedly connected with an internal hexagonal head 6, and the internal hexagonal head 6 is located at the front side of the internal threaded sleeve 4. When the threaded anchor rod 5 is installed, an electric drill tool can be used to insert the internal hexagonal head 6 to rotate the threaded anchor rod 5. Since the threaded anchor rod 5 is threadedly connected with the internal threaded sleeve 4, the threaded anchor rod 5 can be automatically inserted into the dam slope soil at an angle when it is rotated, thereby assisting the hollow anchor rod 2 in reinforcement.

[0025] The rear side of the hollow anchor rod 2 is fixedly connected with a sharp cone 7, which can make the hollow anchor rod 2 have smaller resistance when inserted into the dam slope soil and be easier to insert.

[0026] Working principle:

[0027] When installing, the hollow anchor rod 2 is inserted into the dam slope, at this time the locking rod 17 is inserted into the round hole 14 so that the position of the fin 9 cannot be moved and can only be shrunk inside the opening 8, and after the insertion of the hollow anchor rod 2 is completed, the locking rod 17 can be pulled out, at this time the arc block 13 is no longer restricted and will also be pushed by the elastic force of the spring 16, thereby making the front side of the fin 9 have a tendency to expand, if the hollow anchor rod 2 is pulled out by external force, the tilted head piece 10 on the fin 9 will cooperate with the pushing of the spring 16, so that the fin 9 will be inserted into the soil at an angle, thereby causing great resistance to the pulling out of the hollow anchor rod 2, and after the installation of the hollow anchor rod 2 is completed, the threaded anchor rod 5 can also be inserted into the internal threaded sleeve 4 and inserted on the internal hexagonal head 6 through a drill or other instruments and rotated, the threaded anchor rod 5 will gradually insert through the threaded connection with the internal threaded sleeve 4 when rotating, until the threaded anchor rod 5 is inserted into the soil at an angle, and at the same time, due to the threaded connection of the internal threaded sleeve 4 and the threaded anchor rod 5, the threaded anchor rod 5 and the hollow anchor rod 2 form an integral whole, further improving the firmness of the hollow anchor rod 2, making it not easy to be pulled out, after the hollow anchor rod 2 and the threaded anchor rod 5 are installed and the locking rod 17 has been pulled out, the slope protection plate 1 and the flange piece 3 can then be fixedly connected through bolts to form an integral device, so as to reinforce the dam slope.

Claims

1. A device for reinforcing the slope of a dam of a pumped storage power plant, comprising a revetment plate (1), characterized in that: The back side of the slope protection plate (1) is provided with a plurality of anchor rods, the anchor rod comprises a hollow anchor rod (2), the front side of the hollow anchor rod (2) is fixedly connected with two internal thread sleeves (4), the internal thread sleeves (4) are threadedly connected with threaded anchor rods (5), the threaded anchor rods (5) are located in the hollow anchor rod (2) and extend to the outside of the hollow anchor rod (2), two openings (8) are formed in the outer end of the hollow anchor rod (2), an anti-disengagement mechanism is installed in the hollow anchor rod (2), and the anti-disengagement mechanism penetrates the opening (8) and extends to the outside of the hollow anchor rod (2), the anti-disengagement mechanism is located behind the internal thread sleeve (4), the flange sheet (3) is fixedly connected to the front side of the outer end of the hollow anchor rod (2), and the slope protection plate (1) and the flange sheet (3) are fixedly connected through bolts.

2. A device for reinforcing the slope of a dam of a pumped storage power plant according to claim 1, characterized in that The anti-disengagement mechanism comprises a connecting plate (12), the connecting plate (12) is fixedly connected in the hollow anchor rod (2), the opening (8) is fitted with a fin (9), the fin (9) is fixedly connected with a connecting block (11) on the inner side, the connecting block (11) and the connecting plate (12) are movably connected through an axis, the fin (9) is fixedly connected with an arc-shaped block (13) on the inner side, the arc-shaped block (13) is located in front of the connecting block (11), a partition plate (15) is fixedly connected to the inner side wall of the hollow anchor rod (2), the partition plate (15) is located between the two arc-shaped blocks (13), one spring (16) is fixedly connected to each side of the partition plate (15), and the spring (16) is in abutment with the arc-shaped block (13) at the tail end.

3. A device for reinforcing the slope of a dam of a pumped storage power plant according to claim 2, characterized in that The fin (9) is integrally connected with a bent head piece (10) on the front side, the bent head piece (10) is located in the opening (8) and extends to the outside of the hollow anchor rod (2).

4. The device for reinforcing the slope of a dam of a pumped storage power station according to claim 2, characterized in that, The front side of the arc-shaped block (13) is provided with a circular hole (14), a lock rod (17) penetrates through the circular hole (14), and the lock rod (17) is located in the hollow anchor rod (2) and extends to the front side of the hollow anchor rod (2).

5. The device for reinforcing the slope of a dam of a pumped storage power station according to claim 1, characterized in that, The threaded anchor rod (5) is fixedly connected with an internal hexagonal head (6) on the front side, and the internal hexagonal head (6) is located on the front side of the internal thread sleeve (4).

6. A device for reinforcing the slope of a dam of a pumped storage power plant according to claim 1, characterized in that The back side of the hollow anchor rod (2) is fixedly connected with a sharp cone (7).

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