Shock-absorbing and flow-guiding back plate structure of hydraulic dam

Abstract

The utility model relates to the field of hydraulic dams, in particular to a hydraulic dam damping flow-guiding back plate structure which comprises a gate leaf, an upper damping flow-guiding back plate and a locking device. The lower end of the gate leaf is rotationally fixed to an installation base, a water breaker is arranged at the upper end of the gate leaf, a fixing base is arranged on the back face of the gate leaf, and an upper supporting rod is arranged on the fixing base; the lower end of the upper supporting rod is connected with the lower supporting rod, the lower end of the lower supporting rod is connected with the locking device, and the upper damping flow guide back plate is arranged on the side face of the upper supporting rod. Overflowing water flow can be prevented from directly impacting an oil cylinder and other structural components behind the gate, equipment damage caused by water flow impact is prevented, and the service life of equipment is prolonged; the design of the flow guide grooves in the back plate can guide water flow to flow downstream in order, the negative pressure area formed by water flow scouring is effectively reduced, and the adverse effect of the water flow on the stability of the dam body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel dam gates, in particular to a hydraulic dam shock-absorbing and flow-guiding back plate structure. Background Art

[0002] Hydraulic dam is a new type of adjustable overflow gate, which is widely used in agricultural irrigation, fishery, ship lock, seawater tidal barrier, urban river landscape engineering and small hydropower station construction. Hydraulic dam is a movable water retaining dam surface with the bottom as the axis, which can achieve the purpose of raising the dam to retain water and lowering the dam to discharge flood.

[0003] In the related art, the existing hydraulic dam blocks the erosion of the main oil cylinder by water by setting up a covering structure. However, the single flat covering structure has poor strength, and the negative pressure is too large when the flow passes through. It is easy to tear when the water flows, affecting the normal operation of the hydraulic dam. For this reason, we propose a hydraulic dam shock-absorbing and diversion backplate structure.

[0004] The above information disclosed in this Background section is only for understanding the background of the present inventive concept and therefore it may contain information that does not constitute prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a hydraulic dam shock-absorbing and diversion back plate structure to solve the problem that the existing hydraulic dam proposed in the above background technology blocks the erosion of the main oil cylinder by water by setting a covering surface structure, but the single flat plate covering surface structure has poor strength, the negative pressure is too large when the flow passes, and it is easy to tear when the water flows, thus affecting the normal operation of the hydraulic dam.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A hydraulic dam shock-absorbing and diversion back plate structure, comprising a gate leaf, an upper support rod, an upper shock-absorbing and diversion back plate and a locking device, wherein the lower end of the gate leaf is rotatably fixed on a mounting seat through a connecting shaft, the lower end of the mounting seat is fixed to the upper end of a civil engineering foundation, a plurality of water breakers are symmetrically installed on the upper end of the gate leaf, a fixing seat is welded on the upper end of the back side of the gate leaf, an upper support rod is rotatably arranged on the fixing seat, the upper end of the upper support rod is rotatably connected to the fixing seat through a rotating shaft, the lower end of the upper support rod is hingedly connected to the upper end of the lower support rod, the lower end of the lower support rod is hingedly connected to the upper end of the locking device, and the locking device is cast and fixed on the civil engineering foundation The upper end of the upper support rod is detachably provided with an upper shock-absorbing guide back plate on the side surface of the upper support rod through a hoop, and a shock-absorbing device is installed between the upper shock-absorbing guide back plate and the upper support rod, the upper end of the shock-absorbing device is fitted with the upper shock-absorbing guide back plate, and the lower end of the shock-absorbing device is detachably connected and fixed to the upper support rod through a fixing bolt, and the lower support rod is detachably provided with a lower shock-absorbing guide back plate on the side surface of the lower support rod through a hoop, and the same shock-absorbing device is installed between the lower shock-absorbing guide back plate and the lower support rod, the upper end of the shock-absorbing device is fitted with the lower shock-absorbing guide back plate, and the lower end of the shock-absorbing device is detachably connected and fixed to the lower support rod through a fixing bolt.

[0008] In some embodiments, the upper shock-absorbing guide back plate and the lower shock-absorbing guide back plate are non-flat structures, and guide grooves are provided on the upper shock-absorbing guide back plate and the lower shock-absorbing guide back plate.

[0009] In some embodiments, two groups of oil cylinders are symmetrically installed at the rear end of the door leaf, the upper ends of the oil cylinders are rotatably connected to the rear end of the door leaf through a hinge seat, and the lower ends of the oil cylinders are hinged to the upper end of the mounting seat.

[0010] In some embodiments, a locking cylinder is connected to one side of the locking device, and the locking device is linked to the locking cylinder.

[0011] In some embodiments, the water breaker is connected and fixed to the top of the door leaf, and the upper shock-absorbing and flow-guiding back plate and the lower shock-absorbing and flow-guiding back plate are both corrosion-resistant back plates.

[0012] In some embodiments, the shock absorbing device is a corrosion-resistant damper.

[0013] The beneficial effects of the utility model are:

[0014] The design of the upper shock-absorbing guide back plate and the lower shock-absorbing guide back plate can prevent the flowing water from directly impacting the oil cylinder and other structural components behind the gate, prevent equipment damage caused by water impact, and extend the service life of the equipment; the guide groove design on the back plate can guide the water flow to flow downstream in an orderly manner, effectively reduce the negative pressure area formed by water scouring, and reduce the adverse effect of water flow on the stability of the dam body; the equipped shock-absorbing device, especially the corrosion-resistant damper, can significantly absorb and reduce the vibration and noise caused by water impacting the back plate, improve the environmental friendliness of the hydraulic dam during operation and the working environment of the operator; It drives the door leaf to open and close, and combined with the automatic locking device, it automatically locks when the door leaf reaches the highest water-blocking position to ensure the stable water-blocking state of the gate. At the same time, when the door leaf is opened, the locking device can be unlocked in time to increase the flexibility and safety of the system; the upper support rod, upper shock-absorbing guide back plate and the lower support rod, lower shock-absorbing guide back plate can be folded when water blocking is not needed, which not only reduces the negative pressure generated when water flows through, but also further reduces the direct impact of water on the gate by changing the flow state of water, thereby improving the durability and efficiency of the overall structure. The back plate adopts a non-flat structure, which effectively improves the strength of the back plate while improving the aesthetics of the back plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a hydraulic dam shock-absorbing and diversion back plate structure proposed by the utility model;

[0016] Figure 2 This is a side structural schematic diagram of a hydraulic dam shock-absorbing and diversion back plate structure proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a hydraulic dam shock-absorbing and diversion back plate structure when the gate is opened;

[0018] Figure 4 A schematic diagram of the bottom structure of a hydraulic dam of a hydraulic dam shock-absorbing and diversion back plate structure proposed by the utility model;

[0019] Figure 5 The utility model provides a schematic diagram of an upper shock-absorbing and flow-guiding back plate structure of a hydraulic dam shock-absorbing and flow-guiding back plate structure.

[0020] In the figure: 1 is a door leaf, 2 is a water breaker, 3 is an upper support rod, 4 is an upper shock-absorbing guide back plate, 5 is a lower support rod, 6 is a lower shock-absorbing guide back plate, 7 is a cylinder, 8 is a locking device, 9 is a clamp, 10 is a shock-absorbing device, 11 is a locking cylinder, 12 is a fixing seat, 13 is a connecting shaft, 14 is a mounting seat, and 15 is a guide groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Reference Figure 1 , 2, 3, 4, a hydraulic dam shock-absorbing and diversion back plate structure, comprising a gate leaf 1, an upper support rod 3, an upper shock-absorbing and diversion back plate 4 and a locking device 8, the lower end of the gate leaf 1 is rotatably fixed on a mounting seat 14 through a connecting shaft 13, the lower end of the mounting seat 14 is fixed to the upper end of a civil foundation, a plurality of water breakers 2 are symmetrically mounted on the upper end of the gate leaf 1, a fixing seat 12 is welded on the upper end of the back side of the gate leaf 1, an upper support rod 3 is rotatably arranged on the fixing seat 12, and the upper end of the upper support rod 3 is rotatably mounted on the fixing seat 12. The end is rotatably connected to the fixed seat 12 through a rotating shaft, the lower end of the upper support rod 3 is hingedly connected to the upper end of the lower support rod 5, the lower end of the lower support rod 5 is hingedly connected to the upper end of the locking device 8, the locking device 8 is cast and fixed to the upper end of the civil engineering foundation, the side of the upper support rod 3 is detachably installed with an upper shock-absorbing guide back plate 4 through a hoop 9, a shock-absorbing device 10 is installed between the upper shock-absorbing guide back plate 4 and the upper support rod 3, and the upper end of the shock-absorbing device 10 is hingedly connected to the upper shock-absorbing guide back plate 4. The plate 4 is fitted, the lower end of the shock absorbing device 10 is detachably connected and fixed to the upper support rod 3 by fixing bolts, the side of the lower support rod 5 is detachably installed with a lower shock-absorbing guide back plate 6 through a hoop 9, the same shock absorbing device 10 is installed between the lower shock-absorbing guide back plate 6 and the lower support rod 5, the upper end of the shock absorbing device 10 is fitted with the lower shock-absorbing guide back plate 6, and the lower end of the shock absorbing device 10 is detachably connected and fixed to the lower support rod 5 by fixing bolts. When the piston rod of the oil cylinder 7 is fully extended, the door leaf 1 is in the highest water-blocking state, and the locking device 8 is automatically locked at this time; when water flows over the top of the door, a waterfall effect is formed, and the flowing water is blocked by the upper shock-absorbing guide back plate 4 and the lower shock-absorbing guide back plate 6, so that it cannot cause impact on the oil cylinder 7 and the structure behind the gate, effectively protecting the equipment; at the same time, the water flows downstream through the guide groove 15 on the back plate, reducing the negative pressure formed by the scouring of the water flow; when the water flow impacts the back plate, the shock absorbing device 10 is used to reduce the vibration and noise of the equipment.

[0025] When the embodiments of the present utility model are implemented, Figure 1 , 5 As shown, the upper shock-absorbing guide back plate 4 and the lower shock-absorbing guide back plate 6 are non-flat structures, and guide grooves 15 are arranged on the upper shock-absorbing guide back plate 4 and the lower shock-absorbing guide back plate 6. A locking cylinder 11 is connected to one side of the locking device 8, and the locking device 8 is linked with the locking cylinder 11. When the piston rod of the cylinder 7 is fully retracted, the gate is in an open state and the locking device 8 is in an unlocked state; the upper support rod 3, the upper shock-absorbing guide back plate 4 and the lower support rod 5, and the lower shock-absorbing guide back plate 6 are in a folded state, which reduces the negative pressure when the water flows through the gate, and changes the flow state of the water, thereby reducing the impact of the water on the gate to a certain extent.

[0026] When the embodiments of the present utility model are implemented, Figure 1 , 3As shown, two groups of oil cylinders 7 are symmetrically installed at the rear end of the door leaf 1. The upper end of the oil cylinder 7 is rotatably connected to the rear end of the door leaf 1 through a hinge seat, and the lower end of the oil cylinder 7 is hinged to the upper end of the mounting seat 14. The gate state is controlled by the extension and retraction of the piston rod of the oil cylinder 7.

[0027] When the embodiments of the present utility model are implemented, Figure 1 , 2 As shown, the water breaker 2 is connected and fixed to the top of the door leaf 1, the upper shock-absorbing guide back plate 4 and the lower shock-absorbing guide back plate 6 are both corrosion-resistant back plates, and the shock-absorbing device 10 is a damper with corrosion resistance. By arranging the shock-absorbing device 10 between the support rod and the back plate, the vibration and noise of the device can be effectively reduced.

[0028] In this embodiment, the components are all universal standard parts or components known to those skilled in the art, and their structures and connection principles are all known to those skilled in the art through technical manuals or conventional experimental methods. The door leaf 1 is controlled by two groups of oil cylinders 7 installed at the rear end. The upper end of the oil cylinder 7 is hinged to the door leaf 1, and the lower end is connected to the mounting seat 14. When the piston rod of the oil cylinder 7 is extended, the door leaf 1 is pushed to rotate upward until it reaches the highest water-blocking position. At this time, the multiple groups of water breakers 2 on the back of the door leaf 1 help to disperse the water flow and reduce the impact force; when the piston rod of the oil cylinder 7 is fully retracted, the door leaf 1 rotates downward to the open state, allowing water to pass freely; when the door leaf 1 is in the highest water-blocking state, the locking device 8 is automatically locked to ensure that the gate is firmly water-blocking. This locking mechanism is driven by the locking cylinder 11 and is synchronized with the extended state of the piston rod of the oil cylinder 7 to ensure that the gate remains tight when needed. Closed and safely locked; the upper shock-absorbing guide back plate 4 and the lower shock-absorbing guide back plate 6 are non-flat structures and are provided with guide grooves 15, which can form a waterfall effect when water flows over the top, and effectively block the water flow from directly impacting the oil cylinder and structure behind the gate, protecting the equipment from damage caused by the impact of the water flow; the water flowing through the back plate is guided downstream through the guide grooves 15, reducing the negative pressure effect caused by the rapid passage of the water flow; the shock-absorbing device 10 (corrosion-resistant damper) is installed between the support rod and the back plate, which can effectively absorb the vibration and noise generated when the water flow impacts the back plate, and improve the stability and quietness of the system operation; the support rods (upper support rods and lower support rods) and the back plate are designed as a foldable structure. When the gate is opened, the resistance and negative pressure of the water flow are reduced, and the direction of the water flow is changed to reduce the direct impact on the gate. The entire structure realizes the detachable installation of the back plate through the clamp 9, which is convenient for maintenance and replacement.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic dam shock-absorbing and flow-guiding back plate structure, comprising a door leaf (1), an upper support rod (3), an upper shock-absorbing and flow-guiding back plate (4) and a locking device (8), characterized in that: The lower end of the door leaf (1) is rotatably fixed on the mounting seat (14) through a connecting shaft (13), and the lower end of the mounting seat (14) is fixed to the upper end of the civil engineering foundation. A plurality of water breakers (2) are symmetrically mounted on the upper end of the door leaf (1). A fixing seat (12) is welded to the upper end of the back side of the door leaf (1), and an upper support rod (3) is rotatably arranged on the fixing seat (12). The upper end of the upper support rod (3) is rotatably connected to the fixing seat (12) through a rotating shaft. The lower end of the upper support rod (3) is hingedly connected to the upper end of the lower support rod (5), and the lower end of the lower support rod (5) is hingedly connected to the upper end of the locking device (8). The locking device (8) is cast and fixed to the upper end of the civil engineering foundation. The side of the upper support rod (3) is connected by a clamp (9). An upper shock-absorbing and flow-guiding back plate (4) is detachably mounted, a shock-absorbing device (10) is mounted between the upper shock-absorbing and flow-guiding back plate (4) and the upper support rod (3), the upper end of the shock-absorbing device (10) is fitted with the upper shock-absorbing and flow-guiding back plate (4), the lower end of the shock-absorbing device (10) is detachably connected and fixed to the upper support rod (3) via a fixing bolt, a lower shock-absorbing and flow-guiding back plate (6) is detachably mounted on the side of the lower support rod (5) via a clamp (9), the same shock-absorbing device (10) is mounted between the lower shock-absorbing and flow-guiding back plate (6) and the lower support rod (5), the upper end of the shock-absorbing device (10) is fitted with the lower shock-absorbing and flow-guiding back plate (6), and the lower end of the shock-absorbing device (10) is detachably connected and fixed to the lower support rod (5) via a fixing bolt.

2. A hydraulic dam shock-absorbing and flow-guiding back plate structure according to claim 1, characterized in that: The upper shock-absorbing flow-guiding back plate (4) and the lower shock-absorbing flow-guiding back plate (6) are non-flat plate structures, and flow-guiding grooves (15) are provided on the upper shock-absorbing flow-guiding back plate (4) and the lower shock-absorbing flow-guiding back plate (6).

3. The hydraulic dam shock-absorbing and flow-guiding back plate structure according to claim 1, characterized in that: Two groups of oil cylinders (7) are symmetrically installed at the rear end of the door leaf (1), the upper ends of the oil cylinders (7) are rotatably connected to the rear end of the door leaf (1) via a hinge seat, and the lower ends of the oil cylinders (7) are hinged to the upper end of the mounting seat (14).

4. The hydraulic dam shock-absorbing and flow-guiding back plate structure according to claim 1, characterized in that: A locking cylinder (11) is connected to one side of the locking device (8), and the locking device (8) and the locking cylinder (11) are arranged in linkage.

5. The hydraulic dam shock-absorbing and flow-guiding back plate structure according to claim 1, characterized in that: The water breaker (2) is connected and fixed to the top of the door leaf (1), and the upper shock-absorbing and flow-guiding back plate (4) and the lower shock-absorbing and flow-guiding back plate (6) are both corrosion-resistant back plates.

6. The hydraulic dam shock absorption and diversion back plate structure according to claim 1, characterized in that: The shock absorbing device (10) is a damper having corrosion resistance.

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