Flood discharge equipment for water conservancy projects

Abstract

The present invention belongs to the technical field of water conservancy engineering equipment, and proposes a flood discharge equipment for water conservancy engineering, including a dam foundation, a guardrail, a gate, a gate and a power mechanism are arranged on the dam foundation, the front end face of the gate is provided with a sealing chamfer, the front end face of the gate is provided with a prism plate matched with the sealing chamfer, the gate is provided with a water outlet inside, the water outlet is obliquely connected to the rear end face of the gate from the bottom face of the gate, the top of the gate is provided with a slide matched with the dam foundation, the power mechanism includes a gear rack mechanism, a rotating shaft and a motor, the motor drives the gear rack mechanism to drive the gate to move horizontally along the gate, the rear end face of the gate is provided with a slot plate, the slot plate is provided with a horizontal limit mechanism, and the horizontal limit mechanism is provided with a guide rod connected with the dam foundation. The device is reasonably designed, has a strong water storage and flood discharge capacity, is conducive to reducing the height of civil construction, and is suitable for large-scale promotion.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy engineering equipment, and in particular relates to flood discharge equipment for water conservancy engineering. Background Art

[0002] Projects built to eliminate water hazards and develop and utilize water resources. According to the objects they serve, they are divided into flood control projects, farmland water conservancy projects, hydropower projects, waterway and port projects, water supply and drainage projects, environmental water conservancy projects, and sea reclamation projects. Water conservancy project planning is an integral part of basin planning or regional water conservancy planning, and the construction of a water conservancy project will have a great impact on the environment of the surrounding areas, with both favorable aspects of promoting benefits and eliminating harm, and unfavorable aspects such as flooding, submergence, immigration, and relocation. Flood discharge equipment is a safety facility built on the dam, which can discharge flood water and close the gate at a reasonable time according to needs.

[0003] Existing patent CN202122675343.6 discloses a rapid flood discharge structure for mountain ponds used in water conservancy projects, which includes a water gate, a hoist for opening and closing the water gate, and two slideways symmetrically arranged on both sides of the dam for sliding the water gate in the vertical direction. A cover plate is movably connected to one side of the water gate, and a water discharge port is provided at one end of the water gate away from the hoist. The cover plate is used to open and close the water discharge port. The water gate is also provided with an opening and closing device for driving the cover plate to open and close the water discharge port as the water gate is raised and lowered. This flood discharge structure is similar to many existing flood discharge equipment, and both use a lifting gate. In order to ensure that the lifting end has sufficient travel, the building foundation of the flood discharge must be greater than the height of the lifting gate, and the civil engineering cost is relatively high. In addition, the sealing of the lifting gate needs to be further improved to improve the water storage and flood discharge capacity of the flood discharge structure. Summary of the invention

[0004] In view of the technical problems existing in the above-mentioned flood discharge structure, the present invention proposes a flood discharge device for water conservancy projects which has a reasonable design, a strong water storage and flood discharge capacity and is conducive to reducing the height of civil construction.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is that the flood discharge equipment for water conservancy projects provided by the present invention includes a dam foundation, a guardrail and a plurality of evenly distributed gates are arranged on the dam foundation, a gate is arranged in the gate, a power mechanism is arranged at the driving end of the gate, the gate is a rectangular structure, a sealing chamfer is arranged on the front end face of the gate, a trapezoidal groove is arranged on the front end face of the gate, a prism plate is arranged in the trapezoidal groove, a small bottom face of the prism plate cooperates with the trapezoidal groove, a side face of the prism plate cooperates with the sealing chamfer, a water outlet is arranged inside the gate, and the water outlet flows out from the gate The bottom surface of the door is obliquely connected to the rear end surface of the gate. A slide is provided on the top of the gate, and the slide is movably matched with a slide mouth provided on the foundation of the dam. Columnar sliding protrusions are provided on both sides of the slide, and the columnar sliding protrusions are movably matched with a slide groove provided on the slide mouth. A gear rack mechanism is provided on the top surface of the slide, and a rotating shaft and a motor are provided at the power input end of the gear rack mechanism. The motor drives the gear rack mechanism to drive the gate to move horizontally along the gate. A slot plate is provided on the rear end surface of the gate, and a horizontal limiting mechanism is provided on the slot plate. A guide rod connected to the foundation of the dam is provided on the horizontal limiting mechanism.

[0006] Preferably, the trapezoidal groove is provided with a plurality of connecting holes distributed in a rectangular array, the prism plate is provided with a plurality of countersunk holes corresponding one to one with the connecting holes, and bolts connecting the prism plate and the gate are provided in the connecting holes and the countersunk holes.

[0007] Preferably, the horizontal limiting mechanism includes an inverted T-shaped plate, which includes a vertical portion and a horizontal portion, the vertical portion is provided with a through hole cooperating with the guide rod, and the horizontal portion is provided with two symmetrically distributed screw holes, the screw holes are provided with screws connected to the slot plate, and the screws are provided with fixing nuts.

[0008] Preferably, a rear edge plate is provided on the dam foundation, a guide base block is provided below the rear edge plate, and the guide base block is connected to a guide rod.

[0009] Preferably, the front end face of the dam foundation is an inclined surface, on which a plurality of main guide plates are arranged at intervals, and a plurality of auxiliary guide plates are arranged between the main guide plates. The main guide plates and auxiliary guide plates are both triangular in shape, and the length of the main guide plates is greater than that of the auxiliary guide plates, and the maximum vertical distance between the auxiliary guide plates and the surface of the dam foundation is greater than the maximum vertical distance between the main guide plates and the surface of the dam foundation.

[0010] Preferably, a spillway foundation is provided at the rear end face of the dam foundation, the rear end face of the spillway foundation is an L-shaped two-stage slope, and a plurality of rear wall panels spaced apart from the gate are provided at the top of the spillway foundation and below the rear edge plate.

[0011] Preferably, an L-shaped diversion baffle is provided on the drainage base, and the rear end surface of the drainage base is inclined upward.

[0012] Preferably, a dovetail groove is provided on the bottom surface of the gate, and a dovetail block matching the dovetail groove is provided on the bottom of the gate.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. The flood discharge equipment for water conservancy projects provided by the present invention has a prism plate on the gate and a sealing chamfer to improve the sealing of the gate in a closed state. The power mechanism composed of a motor, a rotating shaft and a gear rack mechanism drives all gates to move horizontally along the gate. The flood flows out from the water outlet inside the gate in a diverting manner to achieve the purpose of flood discharge. The horizontal limit mechanism can prevent the gate from completely separating from the gate, and improve the movement stability of the gate through the guide rod connected thereto. The device can reduce the design height of the dam foundation by discharging flood in a horizontal gate opening manner, so as to reduce the civil engineering cost and maintenance cost. The device has a reasonable design, a strong water storage and flood discharge capacity, and is conducive to reducing the height of civil engineering construction, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 An axonometric diagram of a flood discharge device for a water conservancy project provided in an embodiment;

[0017] Figure 2 A front view of a flood discharge device for a water conservancy project provided in an embodiment;

[0018] Figure 3 A rear view of a flood discharge device for a water conservancy project provided in an embodiment;

[0019] Figure 4 A cross-sectional view of the flood discharge equipment for a water conservancy project provided in the embodiment along the BB direction;

[0020] Figure 5 for Figure 2 A magnified schematic diagram of the structure in the middle;

[0021] Figure 6 An axonometric view of a gate and a horizontal limit mechanism provided for an embodiment;

[0022] Figure 7 A rear view of the gate and the horizontal limit mechanism provided in the embodiment;

[0023] Figure 8 A cross-sectional view of a gate and a horizontal limiting mechanism provided in an embodiment;

[0024] In the above figures:

[0025] 1. Dam foundation; 11. Gate; 12. Sealing chamfer; 13. Slide; 14. Back edge plate; 15. Guide foundation block; 16. Main guide plate; 17. Secondary guide plate; 18. Discharge foundation; 19. Back wall plate; 110. Diversion baffle;

[0026] 2. Gate; 21. Water outlet; 22. Slide; 23. Columnar slide; 24. Prismatic plate; 241. Countersunk hole; 25. Groove plate; 26. Dovetail block;

[0027] 3. Gear rack mechanism;

[0028] 4. Horizontal limit mechanism; 41. Inverted T-shaped plate; 42. Screw rod; 43. Fixing nut;

[0029] 5. Guide rod;

[0030] 6. Guardrail. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the accompanying drawings themselves, and do not limit the structure.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0033] Examples, such as Figure 1As shown in FIG. 8 , the flood discharge equipment for water conservancy projects provided by the present invention comprises a dam foundation 1, on which a guardrail 6 and a plurality of evenly distributed gates 11 are arranged, a gate 2 is arranged in the gate 11, a driving end of the gate 2 is arranged with a power mechanism, the gate 11 is a rectangular structure, a sealing chamfer 12 is arranged on the front end face of the gate 11, a trapezoidal groove is arranged on the front end face of the gate 2, a prism plate 24 is arranged in the trapezoidal groove, a small bottom face of the prism plate 24 cooperates with the trapezoidal groove, a side face of the prism plate 24 cooperates with the sealing chamfer 12, a water outlet 21 is arranged inside the gate 2, and the water outlet 21 is obliquely connected to the gate 2 from the bottom face of the gate 2. 2, a slide 22 is arranged on the top of the gate 2, the slide 22 is movably matched with the slide 13 arranged on the dam foundation 1, cylindrical sliding protrusions 23 are arranged on both sides of the slide 22, the cylindrical sliding protrusions 23 are movably matched with the slide grooves arranged on the slide 13, a gear rack mechanism 3 is arranged on the top surface of the slide 22, a rotating shaft and a motor are arranged at the power input end of the gear rack mechanism 3, the motor drives the gear rack mechanism 3 to drive the gate 2 to move horizontally along the gate 11, a slot plate 25 is arranged on the rear end surface of the gate 2, a horizontal limiting mechanism 4 is arranged on the slot plate 25, and a guide rod 5 connected with the dam foundation 1 is arranged on the horizontal limiting mechanism 4.

[0034] Specifically, in the present invention, a power mechanism is formed by a motor, a rotating shaft and a gear rack mechanism 3 to drive all gates 2 to move horizontally along the gate 11, wherein the motor drives the rotating shaft, the rotating shaft drives the gear on the rotating shaft to rotate, the gear drives the rack together with the slide 22 and the gate 2 to move horizontally, and the flood flows into the inside of the gate 2 from the bottom and flows out in a diversion manner, so that the purpose of flood discharge can be achieved, and the present invention provides a large number of gates 2 to improve the flood storage and flood discharge capacity of the present invention. The device can reduce the design height of the dam foundation 1 by discharging floods in a horizontal gate opening manner, so as to reduce the civil engineering cost and maintenance cost, and the design of this horizontal switch gate plus the prism plate 24 cooperates with the sealing chamfer 12 to improve the sealing of the gate 2 in the closed state. Further, during the movement of the gate 2 along the gate 11, the cylindrical sliding protrusion 23 cooperates with the slide groove, which can improve the movement stability of the gate 2 on the one hand, and improve the sealing at the gate 11 on the other hand. The horizontal limit mechanism 4 can prevent the gate 2 from completely disengaging from the gate opening 11, thereby playing a role of safety limit; at the same time, the guide rod 5 connected thereto can improve the movement stability of the gate 2, thereby improving the safety of opening and closing the gate.

[0035] In order to facilitate the assembly of the gate 2, the present invention connects the prism plate 24 to the gate 2 in a detachable form. Specifically, the outer contour of the gate 2 is opposite to the caliber of the gate 11, and the assembly process can be first inserted from the rear end of the gate 11, and then the prism plate 24 is installed at the front end of the gate 2. The present invention provides a plurality of connection holes distributed in a rectangular array in the trapezoidal groove at the front end of the gate 2, and a plurality of countersunk holes 241 corresponding to the connection holes are provided on the prism plate 24, and bolts connecting the prism plate 24 and the gate 2 are provided in the connection holes and the countersunk holes 241. The prism plate 24 establishes an assembly relationship with the gate 2 through bolts, the small bottom end of the prism plate 24 contacts and cooperates with the groove surface of the trapezoidal groove, the large bottom end of the prism plate 24 faces the front end surface of the dam foundation 1, and the large bottom end edge of the prism plate 24 is sealed and connected with the edge of the sealing chamfer 12.

[0036] In order to improve the utilization rate of the horizontal limit mechanism 4, the horizontal limit mechanism 4 provided by the present invention includes an inverted T-shaped plate 41, which includes a vertical portion and a horizontal portion. The vertical portion is provided with a through hole that cooperates with the guide rod 5, and the horizontal portion has two symmetrically distributed screw holes, in which screw holes are provided with screw rods 42 connected to the slot plate 25, and the screw rods 42 are provided with fixing nuts 43. Among them, the two ends of the horizontal portion of the inverted T-shaped plate 41 are opposite to the rear end surface of the gate 11, that is, the length of the horizontal portion is smaller than the diameter of the gate 11, and when the power mechanism drives the gate 2 to move horizontally to a position close to the limit, the inverted T-shaped plate 41 can be stuck on the outside of the gate 11, and the screw rods 42 provide sufficient safety travel to avoid the gate 2 completely separated from the gate 11 by the power mechanism, which increases the difficulty of closing the gate.

[0037] In order to improve the stability of the gate 2 moving along the gate mouth 11, the present invention is provided with a rear edge plate 14 on the dam foundation 1, and a guide base block 15 is provided below the rear edge plate 14. The guide base block 15 is connected to the guide rod 5. At the same time, the bottom surface of the guide base block 15 is used to limit the groove plate 25 and the upper end surface of the gate 2, which can avoid the problem of the gate 2 heading and tail lifting, and increase the stability of the power mechanism driving the gate 2.

[0038] In order to improve the flood discharge effect, the front end face of the dam foundation 1 provided by the present invention is an inclined surface, on which a plurality of main guide plates 16 are arranged at intervals, and a plurality of auxiliary guide plates 17 are arranged between the main guide plates 16, the main guide plates 16 and the auxiliary guide plates 17 are both triangular, and the length of the main guide plates 16 is greater than the length of the auxiliary guide plates 17, and the maximum vertical distance between the auxiliary guide plates 17 and the surface of the dam foundation 1 is greater than the maximum vertical distance between the main guide plates 16 and the surface of the dam foundation 1. In this way, during the flood discharge process, the flood water is discharged from the water outlet 21 at the bottom of the gate 2, and under the pressure of the water surface, the water flow below the water surface can flow toward the water outlet 21 along the guide channel formed by the main guide plates 16 and the auxiliary guide plates 17, and the structural characteristics of the main guide plates 16 and the auxiliary guide plates 17 make the formed water flow intensity gradually increase from the bottom to the top, and the main guide plates 16 and the auxiliary guide plates 17 can also reduce the probability of vortexes appearing at the water outlet 21, thereby improving the flood discharge effect of the present invention.

[0039] In order to improve the safety of discharge, the present invention is provided with a discharge foundation 18 at the rear end face of the dam foundation 1, the rear end face of the discharge foundation 18 is an L-shaped two-stage slope, and a plurality of rear wall panels 19 spaced apart from the gate 11 are provided at the top of the discharge foundation 18 and below the rear edge plate 14. The rear wall panels 19 can be designed to allow the discharged flood to continue to form a relatively clear diversion, which is conducive to avoiding the flood from converging at the discharge end and affecting the pressure balance at different water outlets 21, thereby improving the safety of flood discharge.

[0040] Furthermore, an L-shaped diversion baffle 110 is provided on the discharge foundation 18 provided by the present invention, and the rear end surface of the discharge foundation 18 is inclined upward. The inclined design of the discharge foundation 18 and the diversion baffle 110 can allow the discharged flood to continue to form a relatively clear diversion, and allow the flood to be discharged in a diversion manner at the end of the discharge foundation 18, which is conducive to promoting the advancement of water flow, and reducing the pressure on both sides of the embankment, further improving the safety of the discharge.

[0041] In order to improve the stability of the movement of the gate 2, the present invention is provided with a dovetail groove on the bottom surface of the gate 11, and a dovetail block 26 matching the dovetail groove is provided at the bottom of the gate 2. The length of the dovetail groove is less than the straight length of the gate 11 in the water flow direction, the front end of the dovetail groove is a closed surface, and the rear end is an open end, which is not only convenient for assembly, but also can improve the sealing of the gate 2 and the gate 11.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A flood discharge device for a water conservancy project, comprising a dam foundation, a guardrail and a plurality of evenly distributed gates are arranged on the dam foundation, a gate is arranged in the gate, and a power mechanism is arranged at the driving end of the gate, characterized in that: The gate is a rectangular structure, and a sealing chamfer is provided on the front end face of the gate, a trapezoidal groove is provided on the front end face of the gate, a prism plate is provided in the trapezoidal groove, the small bottom face of the prism plate cooperates with the trapezoidal groove, and the side face of the prism plate cooperates with the sealing chamfer; a water outlet is provided inside the gate, and the water outlet is obliquely connected to the rear end face of the gate from the bottom face of the gate; a slide is provided on the top of the gate, and the slide is movably cooperated with the slide provided on the dam foundation; columnar sliding protrusions are provided on both sides of the slide, and the columnar sliding protrusions are movably cooperated with the slide groove provided on the slide; a gear rack mechanism is provided on the top surface of the slide, a rotating shaft and a motor are provided at the power input end of the gear rack mechanism, and the motor drives the gear rack mechanism to drive the gate to move horizontally along the gate; a slot plate is provided on the rear end face of the gate, and a horizontal limiting mechanism is provided on the slot plate, and a guide rod connected with the dam foundation is provided on the horizontal limiting mechanism.

2. The flood discharge equipment for water conservancy projects according to claim 1, characterized in that: The trapezoidal groove is provided with a plurality of connecting holes distributed in a rectangular array, the prism plate is provided with a plurality of countersunk holes corresponding to the connecting holes one by one, and the connecting holes and the countersunk holes are provided with bolts connecting the prism plate and the gate.

3. The flood discharge equipment for water conservancy projects according to claim 2, characterized in that: The horizontal limiting mechanism includes an inverted T-shaped plate, which includes a vertical portion and a horizontal portion. The vertical portion is provided with a through hole that cooperates with the guide rod, and the horizontal portion is provided with two symmetrically distributed screw holes. The screw holes are provided with screws connected to the slot plate, and the screws are provided with fixing nuts.

4. The flood discharge equipment for water conservancy projects according to claim 3, characterized in that: A rear edge plate is arranged on the dam foundation, a guide base block is arranged below the rear edge plate, and the guide base block is connected to a guide rod.

5. The flood discharge equipment for water conservancy projects according to claim 1, characterized in that: The front end face of the dam foundation is an inclined surface, on which a plurality of main guide plates are arranged at intervals, and between the main guide plates a plurality of auxiliary guide plates are arranged, the main guide plates and the auxiliary guide plates are both triangular in shape, and the length of the main guide plates is greater than that of the auxiliary guide plates, and the maximum vertical distance between the auxiliary guide plates and the surface of the dam foundation is greater than the maximum vertical distance between the main guide plates and the surface of the dam foundation.

6. The flood discharge equipment for water conservancy projects according to claim 1, characterized in that: A spillway foundation is arranged at the rear end face of the dam foundation. The rear end face of the spillway foundation is an L-shaped two-stage slope. A plurality of rear wall panels spaced apart from the gate are arranged at the top of the spillway foundation and below the rear edge plate.

7. The flood discharge equipment for water conservancy projects according to claim 6, characterized in that: The drainage base is provided with an L-shaped diverting baffle, and the rear end surface of the drainage base is inclined upward.

8. The flood discharge equipment for water conservancy projects according to claim 1, characterized in that: The bottom surface of the gate is provided with a dovetail groove, and the bottom of the gate is provided with a dovetail block matched with the dovetail groove.

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