A sediment discharge device for a hydraulic dam

Abstract

The present invention provides a sand discharging device for a hydraulic dam, which comprises a sand discharging cylinder, a cap, and a driving mechanism; a sand discharging hole is formed on the surface of the hydraulic dam, the sand discharging cylinder is communicated with the sand discharging hole, and the driving mechanism drives the cap to cover or disengage from the sand discharging cylinder. The sand discharging device for the hydraulic dam provided by the present invention connects the sand discharging cylinder to the sand discharging hole at the bottom of the dam surface, and drives the cap to cover or disengage from the sand discharging cylinder through the driving mechanism, so that the sand and stones deposited at the bottom of the water can be automatically discharged through the sand discharging cylinder. The structure is simple, the practicability is strong, the sand discharging efficiency is improved, and there is no need for the dam surface to lie down, thus saving the water flow.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic dams, and particularly to a sand discharging device for a hydraulic dam. Background Art

[0002] A hydraulic dam is a water retaining structure that intercepts the water flow of rivers and channels to raise the water level or regulate the flow rate. It can form a reservoir to raise the water level, regulate runoff, concentrate the water head, and is used for flood control, water supply, irrigation, hydropower generation, improving shipping, etc. With years of accumulation, a lot of sand and gravel will be deposited at the bottom of the water. In the prior art, sand is discharged by lying down the dam surface, which will waste a large amount of water and has a low sand discharging efficiency.

[0003] In view of this, it is necessary to improve the sand discharging device for a hydraulic dam in the prior art to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to disclose a sand discharging device for a hydraulic dam. The sand discharging cylinder is connected to the sand discharging hole at the bottom of the dam surface, and the driving mechanism drives the cap to cover or disengage from the sand discharging cylinder, so that the sand and gravel deposited at the bottom of the water can be automatically discharged through the sand discharging cylinder. The structure is simple, the practicability is strong, the sand discharging efficiency is improved, and there is no need to lie down the dam surface, saving the water flow.

[0005] To achieve the above purpose, the present invention provides a sand discharging device for a hydraulic dam, including a sand discharging cylinder, a cap, and a driving mechanism; a sand discharging hole is opened on the hydraulic dam surface, the sand discharging cylinder is communicated with the sand discharging hole, and the driving mechanism drives the cap to cover or disengage from the sand discharging cylinder.

[0006] In some embodiments, the driving mechanism is a hydraulic cylinder or a pneumatic cylinder.

[0007] In some embodiments, the driving mechanism includes a cylinder body and a piston rod. A first connecting rod is connected to the sand discharging cylinder, a second connecting rod and a third connecting rod are connected to the cap. The cylinder body is hinged to the first connecting rod, the piston rod is hinged to the third connecting rod, and the first connecting rod is hinged to the second connecting rod.

[0008] In some embodiments, the number of the first connecting rods is two, the number of the second connecting rods is two, and the third connecting rod is located between the two second connecting rods.

[0009] In some embodiments, it further includes a fourth connecting rod located between the two first connecting rods, and the cylinder body is hinged to the first connecting rod and the fourth connecting rod.

[0010] In some embodiments, the cap is located on the backwater side of the hydraulic dam surface.

[0011] In some embodiments, the sand discharging hole is opened at the bottom of the hydraulic dam surface.

[0012] In some embodiments, a radially outwardly extending edge is provided at the end of the sand discharge tube, and a plurality of mounting holes are provided on the edge.

[0013] In some embodiments, the cap further has an inner retaining lining extending into the sand discharge tube, and the inner retaining lining is in an inclined shape.

[0014] In some embodiments, a rubber ring abutting against the sand discharge tube is provided on the cap.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The sand discharge device for a hydraulic dam provided by the present invention connects the sand discharge tube to the sand discharge hole at the bottom of the dam surface, and drives the cap to cover or disengage from the sand discharge tube through the driving mechanism, so that the sand and stones deposited at the bottom of the water can be automatically discharged through the sand discharge tube. The structure is simple, the practicability is strong, the sand discharge efficiency is improved, and there is no need for the dam surface to lie down, saving the water flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a sand discharge device for a hydraulic dam shown in the present invention;

[0017] Figure 2 is Figure 1 a side view of;

[0018] Figure 3 is Figure 1 a schematic structural diagram of the sand discharge device (cap disengaged from the sand discharge tube) shown in;

[0019] Figure 4 is Figure 3 a front view of;

[0020] Figure 5 is Figure 3 a top view of;

[0021] Figure 6 is Figure 1 a schematic structural diagram of the sand discharge device (cap covering the sand discharge tube) shown in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, it should be noted that these embodiments do not limit the present invention, and any equivalent transformation or substitution in terms of function, method, or structure made by those of ordinary skill in the art based on these embodiments shall fall within the protection scope of the present invention.

[0023] As Figures 1-6 shown, a sand discharge device for a hydraulic dam, the sand discharge device 2 includes a sand discharge tube 3, a cap 4, and a driving mechanism 5. The cap 4 is located on the water-receiving side 10 of the dam surface 11 of the hydraulic dam 1.

[0024] A sand discharge hole (not shown) is provided on the dam surface 11 of the hydraulic dam 1. The sand discharge hole is provided at the bottom of the dam surface 11 of the hydraulic dam 1, facilitating the discharge of sand and gravel deposited at the bottom of the water through the sand discharge hole.

[0025] The sand discharge cylinder 3 is communicated with the sand discharge hole. In this embodiment, an edge 31 extending radially outward is provided at the end of the sand discharge cylinder 3, and a plurality of mounting holes 310 are provided on the edge 31, thereby facilitating the installation and connection of the sand discharge cylinder 3 to the dam surface 11.

[0026] The driving mechanism 5 is a hydraulic cylinder or a pneumatic cylinder. The driving mechanism 5 includes a cylinder block 51 and a piston rod 52. A first connecting rod 61 is connected to the sand discharge cylinder 3, a second connecting rod 62 and a third connecting rod 63 are connected to the cap 4, the cylinder block 51 is hinged to the first connecting rod 61, the piston rod 52 is hinged to the third connecting rod 63, and the first connecting rod 61 is hinged to the second connecting rod 62.

[0027] The number of the first connecting rods 61 is two, the number of the second connecting rods 62 is two, and the third connecting rod 63 is located between the two second connecting rods 62, improving the stability during the rotation of the cap 4. A fourth connecting rod 64 located between the two first connecting rods 61 is further included, and the cylinder block 51 is hinged to the first connecting rod 61 and the fourth connecting rod 64, ensuring the stability during the rotation of the cylinder block 51.

[0028] The cap 4 is further provided with an inner baffle 8 extending into the sand discharge cylinder 3, and the inner baffle 8 is in an inclined shape. Before the cap 4 covers the sand discharge cylinder 3, the inner baffle 8 first inserts into the sand discharge cylinder 3, improving the stability during the covering process of the cap 4 and the sand discharge cylinder 3, and ensuring the sealing performance of the connection between the cap 4 and the sand discharge cylinder 3.

[0029] A rubber ring 7 abutting against the sand discharge cylinder 3 is provided on the cap 4, ensuring the sealing performance of the connection between the cap 4 and the sand discharge cylinder 3 and preventing water from flowing out through the gap between the cap 4 and the sand discharge cylinder 3.

[0030] The driving mechanism 5 drives the cap 4 to cover or disengage from the sand discharge cylinder 3. When the cap 4 disengages from the sand discharge cylinder 3, the sand and gravel deposited at the bottom of the water can be automatically discharged through the sand discharge cylinder 3. The structure is simple, the practicability is strong, the sand discharge efficiency is high, and there is no need for the dam surface 11 to lie down, saving water flow. When the cap 4 covers the sand discharge cylinder 3, water cannot flow out from the sand discharge cylinder 3.

[0031] The usage method of the sand discharging device for the hydraulic dam is as follows: The piston rod 52 of the driving mechanism 5 retracts, driving the third connecting rod 63 to rotate upward. The third connecting rod 63 drives the cap 4 to rotate away from the sand discharging cylinder 3, and the third connecting rod 63 drives the cylinder block 51 to rotate upward. At the same time, the cap 4 drives the second connecting rod 62 to rotate upward, and the cap 4 disengages from the sand discharging cylinder 3, and then sand discharging can be carried out. The piston rod 52 of the driving mechanism 5 extends, driving the third connecting rod 63 to rotate downward. The third connecting rod 63 drives the cap 4 to rotate towards the sand discharging cylinder 3, and the third connecting rod 63 drives the cylinder block 51 to rotate downward. At the same time, the cap 4 drives the second connecting rod 62 to rotate downward. The inner baffle 8 first extends into the sand discharging cylinder 3, and finally the cap 4 covers the sand discharging cylinder 3 to stop sand discharging.

[0032] The series of detailed descriptions listed above are only specific descriptions of the feasible implementation manners of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation manners or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

[0033] In addition, it should be understood that although this specification is described according to implementation manners, not every implementation manner only includes an independent technical solution. The narrative manner of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A sand discharging device for a hydraulic dam, characterized in that It includes a sand discharge tube (3), a cap (4), and a driving mechanism (5); a sand discharge hole is formed on the dam surface (11) of the hydraulic dam (1), the sand discharge tube (3) is communicated with the sand discharge hole, and the driving mechanism (5) drives the cap (4) to cover or disengage from the sand discharge tube (3); the driving mechanism (5) is a hydraulic cylinder or a pneumatic cylinder; The driving mechanism (5) includes a cylinder block (51) and a piston rod (52), a first connecting rod (61) is connected to the sand discharge tube (3), a second connecting rod (62) and a third connecting rod (63) are connected to the cap (4), the cylinder block (51) is hinged to the first connecting rod (61), the piston rod (52) is hinged to the third connecting rod (63), and the first connecting rod (61) is hinged to the second connecting rod (62); The number of the first connecting rods (61) is two, the number of the second connecting rods (62) is two, and the third connecting rod (63) is located between the two second connecting rods (62); It further includes a fourth connecting rod (64) located between the two first connecting rods (61), and the cylinder block (51) is hinged to the first connecting rod (61) and the fourth connecting rod (64); The cap (4) is located on the water-receiving side (10) of the dam surface (11) of the hydraulic dam (1).

2. The sand discharging device for a hydraulic dam according to claim 1, characterized in that, The sand discharge hole is formed at the bottom of the dam surface (11) of the hydraulic dam (1).

3. The sand discharging device for a hydraulic dam according to claim 1, characterized in that An edge (31) extending radially outward is provided at the end of the sand discharge tube (3), and a plurality of mounting holes (310) are provided on the edge (31).

4. The sand discharging device for a hydraulic dam according to claim 1, characterized in that, The cap (4) is further provided with an inner retaining lining (8) extending into the sand discharge tube (3), and the inner retaining lining (8) is in an inclined shape.

5. The sand discharging device for a hydraulic dam according to claim 1, characterized in that A rubber ring (7) for abutting against the sand discharge tube (3) is provided on the cap (4).

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