A water retaining structure for flood control of a pumped storage power station

Abstract

The invention discloses a water retaining structure for flood prevention in a pumped storage power station, comprising a concrete edge prevention, an impeller, a waterproof wall and a linkage mechanism, wherein a water well is provided at the top of the concrete edge prevention, a drainage channel is provided at the bottom of the water well, the impeller is arranged in the water well, the waterproof wall is hinged at the top of the concrete edge prevention, the linkage mechanism comprises a push rod, a lifting screw rod, a first transmission shaft, a second transmission shaft, a gear pair and a lifting transmission member, the first transmission shaft, the second transmission shaft and the lifting transmission member are all rotatably arranged in the concrete edge prevention, the lifting screw rod is threadedly connected to the lifting transmission member, the first transmission shaft is connected to the lifting transmission member, the second transmission shaft is connected to the impeller through the gear pair, the push rod is hinged to the lifting screw rod and the waterproof wall, a clutch is provided between the first transmission shaft and the second transmission shaft, a clutch button is provided at the top of the concrete edge prevention, and the clutch button is connected to the clutch. The water retaining structure for flood prevention in a pumped storage power station can timely waterproof and disconnect the connection between the impeller and the waterproof wall, reduce damage and extend service life.

Description

Technical Field

[0001] The invention relates to the technical field of river flood control and waterproofing, and in particular to a water retaining structure for flood control of a pumped storage power station. Background Art

[0002] A floodproof wall is a concrete or masonry water-retaining structure used to ensure flood control safety or other special requirements in towns, important industrial and mining enterprises, along rivers, coastal areas. It is also called a flood control wall. The function of a flood control wall is the same as that of a dike. Since there are important traffic arteries and dense buildings along the river in the city, sometimes due to limitations of existing projects, or due to the needs of urban planning and development, or due to limited soil sources, flood control walls have to be used to reduce land occupation and demolition.

[0003] However, most of the flood-control retaining structures of pumped storage power stations cannot automatically erect the waterproof wall, and need to be manually transported. This not only wastes manpower and material resources, but is also inefficient and not suitable for widespread promotion. In addition, it takes a lot of time and energy to carry out later maintenance during use. Some waterproof walls that can be automatically erected have no power source disconnected in time after the waterproof wall is erected, which is prone to damage, short service life, and high maintenance cost. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a flood-prevention water retaining structure for a pumped-storage power station that can achieve timely waterproofing, disconnect the linkage connection between the impeller and the waterproof wall in time, reduce damage, extend service life, and reduce maintenance costs.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A flood-proof water retaining structure for a pumped storage power station comprises a concrete edge barrier, an impeller, a waterproof wall and a linkage mechanism. A water well is arranged on the top of the concrete edge barrier, a drainage channel is connected to the bottom of the water well, the impeller is rotatably arranged in the water well, and the waterproof wall is hinged to the top of the concrete edge barrier and is located outside the water well in an upside-down manner. The impeller is connected to the waterproof wall through a linkage mechanism, so that the waterproof wall is flipped up to be waterproof. The linkage mechanism includes a push rod, a lifting screw, a first transmission shaft, a second transmission shaft, a gear pair and a lifting transmission member for driving the lifting screw to lift and lower. The first transmission shaft, the second transmission shaft and the lifting transmission member are all rotatably arranged in the concrete edge protection. The lifting screw is penetrated through the center of the lifting transmission member and is threadedly connected to the lifting transmission member. The first transmission shaft is linked to the lifting transmission member, and the second transmission shaft is connected to the rotating shaft of the impeller through a gear pair. One end of the push rod is hinged to the top of the lifting screw, and the other end is hinged to the waterproof wall. A clutch is provided between the first transmission shaft and the second transmission shaft, and a clutch button is provided on the top of the concrete edge protection. The clutch button is connected to the clutch. When the waterproof wall is flipped into place, the waterproof wall presses against the clutch button, and the clutch separates the first transmission shaft and the second transmission shaft.

[0007] As a further improvement of the above technical solution:

[0008] The clutch includes a clutch sleeve and an elastic member. The clutch sleeve is slidably mounted on the first transmission shaft and the second transmission shaft and is spline-connected to the first transmission shaft and the second transmission shaft. The elastic member is disposed between the clutch sleeve and the concrete edge protection. The clutch button includes a mounting seat, a push column and a pull rope. The mounting seat is mounted on the concrete edge protection. The push column is slidably mounted on the mounting seat. One end of the push column is connected to the clutch sleeve through a pull rope, and the other end is configured as a push end for pressing against the waterproof wall.

[0009] The lifting transmission member is a first helical gear, the first transmission shaft is provided with a second helical gear, and the first helical gear is meshed with the second helical gear.

[0010] The gear pair comprises a third helical gear and a fourth helical gear meshing with each other, the third helical gear is arranged on the second transmission shaft, and the fourth helical gear is fixed on the rotating shaft of the impeller.

[0011] A hinged rod and a support rod are fixed at intervals on one side of the waterproof wall. One end of the hinged rod away from the waterproof wall is hinged on the concrete edge protection, and the push rod is hinged to the middle part of the support rod.

[0012] A lifting column is provided on the top of the concrete edge protection, and the hinged rod is hinged to the lifting column.

[0013] The concrete edge barrier is provided with a pressing surface between the lifting column and the sewer. When the waterproof wall is turned up, the bottom of the waterproof wall presses against the pressing surface.

[0014] A sealing gasket is arranged on the abutting surface.

[0015] The concrete edge protection is provided with a cover plate above the sewer, and the cover plate is provided with a water inlet, and the water inlet is located obliquely above the sewer.

[0016] A water retaining plate is arranged at the bottom of the cover plate.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The invention discloses a flood-proof water retaining structure for a pumped storage power station. When the water is not waterproofed, the waterproof wall is in a horizontal state of being turned down, which does not affect the landscape on both sides of the river. When the flood comes and waterproofing is required, the flood first flows from the river into the sewer well to drive the impeller to rotate. During the rotation of the impeller, the second transmission shaft is driven to rotate through the gear pair, the second transmission shaft is driven to rotate through the clutch, the first transmission shaft is driven to rotate the lifting transmission member, the lifting transmission member is driven to lift the lifting screw rod, and the lifting screw rod is used to turn the waterproof wall up to a vertical state through the push rod to prevent the water in the river from flowing out of the river. When the waterproof wall and the clutch button are in contact with the vertical state, the waterproof wall presses the clutch button, and when the waterproof wall is turned up to the vertical state, the clutch button is pressed in place, and the clutch separates the first transmission shaft and the second transmission shaft, so that the linkage connection between the impeller and the waterproof wall is disconnected, and the waterproof wall that is turned up in place is prevented from restricting the rotation of the impeller, thereby reducing damage, extending the service life, and reducing maintenance costs. When a flood comes, the water retaining structure for flood prevention of the pumped storage power station can automatically flip up the waterproof wall under the action of the gravity of the flood to achieve a timely waterproof function, and can timely disconnect the linkage connection between the impeller and the waterproof wall, thereby reducing damage, extending service life and reducing maintenance costs.

[0019] The present invention provides a flood-prevention water retaining structure for a pumped storage power station. When the waterproof wall does not squeeze the push column, the clutch sleeve, under the elastic force of the elastic member, maintains a spline connection with the first transmission shaft and the second transmission shaft, so that the rotational movement of the impeller is smoothly transmitted to the waterproof wall, causing the waterproof wall to flip. When the waterproof wall squeezes the push column, the push column slides, and at the same time, the clutch sleeve is driven to slide by the pull rope, so that the clutch sleeve is separated from the second transmission shaft to disconnect the linkage connection between the impeller and the waterproof wall. Of course, the first transmission shaft can also be connected to an electric drive or a manual rotating mechanism to reverse the rotation of the first transmission shaft to achieve the downward flipping and resetting of the waterproof wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the flood control water retaining structure for a pumped storage power station of the present invention when it is not waterproof.

[0021] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0022] Figure 3 It is a schematic structural diagram of the flood-prevention water retaining structure of the pumped storage power station of the present invention when waterproofing.

[0023] Figure 4 yes Figure 3 Enlarged view of point B in the middle.

[0024] The symbols in the figure represent:

[0025] 1. Concrete edge protection; 11. Lifting column; 12. Tightening surface; 121. Sealing gasket; 2. Impeller; 3. Waterproof wall; 31. Articulated rod; 32. Support rod; 4. Linkage mechanism; 41. Push rod; 42. Lifting screw rod; 43. First transmission shaft; 44. Gear pair; 45. Lifting transmission member; 46. Second bevel gear; 47. Third bevel gear; 48. Fourth bevel gear; 49. Second transmission shaft; 5. Sewer; 51. Drainage channel; 6. Cover plate; 61. Water inlet; 62. Water retaining plate; 8. Clutch; 81. Clutch sleeve; 82. Elastic member; 9. Clutch button; 91. Mounting seat; 92. Push column; 921. Push-push end; 93. Pull rope. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Figures 1 to 4An embodiment of a flood-proof water retaining structure for a pumped-storage power station of the present invention is shown. The flood-proof water retaining structure for a pumped-storage power station comprises a concrete edge-proof structure 1, an impeller 2, a waterproof wall 3 and a linkage mechanism 4. A sewer 5 is arranged on the top of the concrete edge-proof structure 1. The bottom of the sewer 5 is connected with a drainage channel 51. The impeller 2 is rotatably arranged in the sewer 5. The waterproof wall 3 is hinged to the top of the concrete edge-proof structure 1 and is located on the outside of the sewer 5 so as to be flipped up and down. The impeller 2 is connected to the waterproof wall 3 through the linkage mechanism 4, so that the waterproof wall 3 is flipped up to prevent water. The linkage mechanism 4 comprises a push rod 41, a lifting screw rod 42, a first transmission shaft 43, a second transmission shaft 49, a gear pair 44 and a lifting transmission member 45 for driving the lifting screw rod 42 to lift and lower. The first transmission shaft 43, the second transmission shaft 49 and the lifting transmission member 45 are all rotatably arranged in the concrete edge-proof structure 1. The lifting screw rod 42 is penetrated through the center of the lifting transmission member 45 and is threadedly connected to the lifting transmission member 45. The first transmission shaft 43 is connected to the lifting screw rod 42. The lowering transmission member 45 is linked and connected, the second transmission shaft 49 is connected to the rotating shaft of the impeller 2 through the gear pair 44, one end of the push rod 41 is hinged to the top of the lifting screw rod 42, and the other end is hinged to the waterproof wall 3, a clutch 8 is provided between the first transmission shaft 43 and the second transmission shaft 49, and a clutch button 9 is provided on the top of the concrete edge protection 1, and the clutch button 9 is connected to the clutch 8. When the waterproof wall 3 is flipped up into place, the waterproof wall 3 presses against the clutch button 9, and the clutch 8 separates the first transmission shaft 43 and the second transmission shaft 49.

[0028] Specifically, the concrete edge 1 is arranged on the side of the river, the outer side of the sewer well 5 is the side away from the river, and the upper port of the sewer well 5 is used for flooding. Figure 1 and Figure 2 As shown, the waterproof wall 3 is in a horizontal state with a downward turn, which does not affect the landscape on both sides of the river; when flooding comes and waterproofing is needed, as shown in FIG. Figure 3 and Figure 4As shown, the flood first flows from the river into the sewer 5 to drive the impeller 2 to rotate. During the rotation of the impeller 2, the second transmission shaft 49 is driven to rotate through the gear pair 44. The second transmission shaft 49 drives the first transmission shaft 43 to rotate through the clutch. The first transmission shaft 43 drives the lifting transmission member 45 to rotate. The lifting transmission member 45 drives the lifting screw 42 to rise. The lifting screw 42 turns the waterproof wall 3 up to a vertical state through the push rod 41 to prevent the water in the river from flowing out of the river. When the waterproof wall 3 and the clutch button 9 are in contact with the vertical state, the waterproof wall 3 presses the clutch button 9. When the waterproof wall 3 is turned up to the vertical state, the clutch button 9 is pressed in place, and the clutch 8 separates the first transmission shaft 43 and the second transmission shaft 49. In this way, the linkage connection between the impeller 2 and the waterproof wall 3 is disconnected, so as to avoid the waterproof wall 3 that is turned up to the right position to limit the rotation of the impeller 2, reduce damage, extend the service life, and reduce maintenance costs. When a flood comes, the flood-prevention water retaining structure of the pumped storage power station can automatically flip up the waterproof wall 3 under the action of the gravity of the flood to achieve timely waterproofing function, and can timely disconnect the linkage connection between the impeller 2 and the waterproof wall 3, thereby reducing damage, extending service life, and reducing maintenance costs.

[0029] In this embodiment, the clutch 8 includes a clutch sleeve 81 and an elastic member 82. The clutch sleeve 81 is slidably mounted on the first transmission shaft 43 and the second transmission shaft 49 and spline-connected with the first transmission shaft 43 and the second transmission shaft 49. The elastic member 82 is disposed between the clutch sleeve 81 and the concrete edge protection 1. The clutch button 9 includes a mounting seat 91, a pressing column 92 and a pull rope 93. The mounting seat 91 is mounted on the concrete edge protection 1. The pressing column 92 is slidably mounted on the mounting seat 91. One end of the pressing column 92 is connected to the clutch sleeve 81 through the pull rope 93, and the other end is configured as a push end 921 for pressing against the waterproof wall 3. When the waterproof wall 3 does not squeeze the pressing column 92, as shown in FIG. Figure 2 As shown, the clutch sleeve 81 maintains the spline connection with the first transmission shaft 43 and the second transmission shaft 49 under the elastic force of the elastic member 82 (spring), so that the rotation of the impeller 2 is smoothly transmitted to the waterproof wall 3, so that the waterproof wall 3 flips. When the waterproof wall 3 squeezes the pressing column 92, the pressing column 92 slides, and at the same time, the clutch sleeve 81 is driven to slide through the pull rope 93, so that the clutch sleeve 81 is separated from the second transmission shaft 49 to disconnect the linkage connection between the impeller 2 and the waterproof wall 3. Of course, the first transmission shaft 43 can also be connected to an electric drive or a manual rotation mechanism to make the first transmission shaft 43 rotate in the opposite direction to achieve the downward flipping and resetting of the waterproof wall 3.

[0030] In this embodiment, the lifting transmission member 45 is a first bevel gear, and a second bevel gear 46 is provided on the first transmission shaft 43, and the first bevel gear is meshed with the second bevel gear 46. Since the lifting screw 42 is passed through the center of the first bevel gear and is threadedly connected with the first bevel gear, the rotation of the first bevel gear can push the lifting screw 42 to rise and fall, and when the lifting screw 42 is subjected to downward pressure, there is a reverse locking force between the lifting screw 42 and the first bevel gear, so that the lifting screw 42 cannot fall under the downward pressure, thereby keeping the waterproof wall 3 in an upward waterproof state when the impeller 2 is stationary.

[0031] In this embodiment, the gear pair 44 includes a third bevel gear 47 and a fourth bevel gear 48 meshing with each other, the third bevel gear 47 is arranged on the second transmission shaft 49, and the fourth bevel gear 48 is fixed on the rotating shaft of the impeller 2. The impeller 2 and the second transmission shaft 49 are linked by the third bevel gear 47 and the fourth bevel gear 48, and the transmission is stable. The first transmission shaft 43, the second transmission shaft 49, the lifting transmission member 45, the first bevel gear and the second bevel gear 46 are all arranged in the concrete edge protection 1, which prevents the linkage mechanism 4 from being completely immersed in water, improves the service life of the linkage mechanism 4, and at the same time, achieves the purpose of hiding the linkage mechanism 4, reduces the linkage mechanism 4 from being exposed to the outside, and occupies the external space.

[0032] In this embodiment, a hinge rod 31 and a support rod 32 are fixed at intervals on one side of the waterproof wall 3, and one end of the hinge rod 31 away from the waterproof wall 3 is hinged on the concrete edge protection 1, and the push rod 41 is hinged to the middle of the hinge rod 31. Specifically, a lifting column 11 is provided on the top of the concrete edge protection 1, and the hinge rod 31 is hinged to the lifting column 11. When not waterproofed, the waterproof wall 3 is supported on the top of the concrete edge protection 1 by the hinge rod 31 and the support rod 32, and it is best to make the waterproof wall 3 in a horizontal state to improve the aesthetics.

[0033] In this embodiment, the concrete edge protection 1 is provided with a pressing surface 12 between the lifting column 11 and the sewer shaft 5. When the waterproof wall 3 is flipped up, the bottom of the waterproof wall 3 is pressed against the pressing surface 12, thereby limiting the flipping of the waterproof wall 3 and achieving a better waterproof effect.

[0034] In this embodiment, a sealing pad 121 is provided on the abutting surface 12, so that the bottom of the waterproof wall 3 is in sealing contact with the abutting surface 12, thereby preventing water leakage and improving the waterproof effect.

[0035] In this embodiment, the concrete edge 1 is provided with a cover plate 6 above the manhole 5, and a water inlet 61 is provided on the cover plate 6. The water inlet 61 is located obliquely above the manhole 5. Specifically, when not waterproofed, the waterproof wall 3 in the downward flipped state is flush with the cover plate 6, which has a beautiful appearance and can be used as a sidewalk. The water inlet 61 is located obliquely above the manhole 5, and a diversion slope is provided on one side of the manhole 5 close to the water inlet 61. The flood flows from the water inlet 61 to the bottom of the cover plate 6, and then flows into the manhole 5 along the diversion slope, causing the impeller 2 to rotate.

[0036] In this embodiment, a water baffle 62 is provided at the bottom of the cover plate 6. The top of the water baffle 62 is fixedly connected to the cover plate 6, and the bottom of the water baffle 62 extends to the upper middle of the impeller 2, which is used to prevent water from entering the side of the impeller 2 away from the guide slope when the water inflow is too large.

[0037] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A flood-prevention water retaining structure for a pumped storage power station, characterized in that: The invention comprises a concrete edge protection device (1), an impeller (2), a waterproof wall (3) and a linkage mechanism (4); a water well (5) is provided on the top of the concrete edge protection device (1); the bottom of the water well (5) is connected to a drainage channel (51); the impeller (2) is rotatably arranged in the water well (5); the waterproof wall (3) is hingedly connected to the top of the concrete edge protection device (1) and is located outside the water well (5) in a manner that it can be turned upside down; The impeller (2) is connected to the waterproof wall (3) via a linkage mechanism (4), so that the waterproof wall (3) is turned up to prevent water from entering. The linkage mechanism (4) comprises a push rod (41), a lifting screw rod (42), a first transmission shaft (43), a second transmission shaft (49), a gear pair (44), and a lifting transmission member (45) for driving the lifting screw rod (42) to move up and down. The first transmission shaft (43), the second transmission shaft (49), and the lifting transmission member (45) are all rotatably arranged in the concrete edge protection (1). The lifting screw rod (42) is inserted into the lifting transmission member (45). The first transmission shaft (43) is connected to the center of the concrete edge protection (1) and is threadedly connected to the lifting transmission member (45); the first transmission shaft (43) is linked to the lifting transmission member (45); the second transmission shaft (49) is connected to the rotating shaft of the impeller (2) through a gear pair (44); one end of the push rod (41) is hinged to the top of the lifting screw rod (42) and the other end is hinged to the waterproof wall (3); a clutch (8) is provided between the first transmission shaft (43) and the second transmission shaft (49); a clutch button (9) is provided on the top of the concrete edge protection (1); the clutch button (9) is connected to the clutch (8) Then, when the waterproof wall (3) is turned up into position, the waterproof wall (3) is pressed against the clutch button (9), and the clutch (8) separates the first transmission shaft (43) and the second transmission shaft (49). The clutch (8) comprises a clutch sleeve (81) and an elastic member (82). The clutch sleeve (81) is slidably sleeved on the first transmission shaft (43) and the second transmission shaft (49), and is spline-connected to the first transmission shaft (43) and the second transmission shaft (49). The elastic member (82) is arranged between the clutch sleeve (81) and the concrete edge protection (1). The clutch button (9) comprises a mounting seat (91), a push column (92) and a pull rope (93), wherein the mounting seat (91) is mounted on the concrete edge protection (1), the push column (92) is slidably mounted on the mounting seat (91), one end of the push column (92) is connected to the clutch sleeve (81) via the pull rope (93), and the other end is configured as a push end (921) for pressing against the waterproof wall (3), the lifting transmission member (45) is a first bevel gear, the first transmission shaft (43) is provided with a second bevel gear (46), and the first bevel gear is meshed with the second bevel gear (46).

2. The flood-prevention water retaining structure for a pumped storage power station according to claim 1, characterized in that: The gear pair (44) comprises a third bevel gear (47) and a fourth bevel gear (48) meshing with each other, the third bevel gear (47) being arranged on the second transmission shaft (49), and the fourth bevel gear (48) being fixed on the rotating shaft of the impeller (2).

3. The flood-prevention water retaining structure for a pumped storage power station according to claim 1, characterized in that: A hinged rod (31) and a support rod (32) are fixed at intervals on one side of the waterproof wall (3); one end of the hinged rod (31) away from the waterproof wall (3) is hinged to the concrete edge protection (1); and the push rod (41) is hinged to the middle part of the support rod (32).

4. The flood-prevention water retaining structure for a pumped storage power station according to claim 3, characterized in that: A lifting column (11) is provided on the top of the concrete edge protection (1), and the hinged rod (31) is hingedly connected to the lifting column (11).

5. The flood-prevention water retaining structure for a pumped storage power station according to claim 4, characterized in that: The concrete edge barrier (1) is provided with a pressing surface (12) between the lifting column (11) and the sewer shaft (5); when the waterproof wall (3) is turned up, the bottom of the waterproof wall (3) is pressed against the pressing surface (12).

6. The flood-prevention water retaining structure for a pumped storage power station according to claim 5, characterized in that: A sealing gasket (121) is provided on the abutting surface (12).

7. A flood-prevention water retaining structure for a pumped storage power station according to any one of claims 1 to 6, characterized in that: The concrete edge protection (1) is provided with a cover plate (6) above the sewer shaft (5), and a water inlet (61) is provided on the cover plate (6). The water inlet (61) is located obliquely above the sewer shaft (5).

8. The flood-prevention water retaining structure for a pumped storage power station according to claim 7, characterized in that: A water retaining plate (62) is provided at the bottom of the cover plate (6).

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