CN103015375B - Water retaining device - Google Patents

Abstract

The invention discloses a water blocking device in the field of water conservancy facilities, which comprises at least one group of water blocking boards, the water blocking boards are integrally blocked in the river channel, gate walls are arranged on both sides of the river channel, and a concrete foundation is arranged at the bottom of the river channel. The back side of the water board is provided with a supporting pier corresponding to the water blocking board, the bottom of the water blocking board is provided with rollers supported on the concrete foundation, and an oil cylinder is arranged between the water blocking board and the supporting pier, and the cylinder body is hinged on the supporting pier Above, the extended end of the piston rod of the oil cylinder is hinged at the lower part of the water blocking plate; there is also a hinge rod on the back side of the water blocking plate, the upper end of the hinge rod is hinged on the upper part of the water blocking plate, and the lower end of the hinge rod is hinged on the hinge seat. The hinged seat is fixed on the concrete foundation. The invention has the advantages of high structural strength, low energy consumption, flexible operation and investment saving, and can be used in various water conservancy constructions such as reservoir construction, river flood discharge, urban water network management, agricultural irrigation and the like.

Description

a water blocking device

technical field

The invention relates to a water conservancy facility, in particular to a device for blocking and releasing water in a river course.

Background technique

Compared with traditional gates such as flat doors, arc doors, horizontal sliding doors, and triangular doors, new types of gates have emerged in an endless stream in recent years. In the field of gates with small and medium spans, there are down gates (with and without arms), upturn gates, and straight gates. In the field of long-span gates, such as protective mirror doors, bottom horizontal-axis flap doors (steel dams), straight-lift doors with truss structures, lodging steel gates without middle piers (patent number: 200810014314.1), rubber dam steel gates (patent Application number: 200520087469.X), steel structure hydraulic automatic control flap gate (patent application number: 201010241022). Most of these gates are variants of traditional gates in terms of the force mode and opening and closing methods of the gates. For example, the mirror door can be regarded as a variant of the arc gate; the rubber dam steel gate can be regarded as a variant of the rubber dam.

In the existing bottom horizontal shaft flap door (steel dam), the door leaf is connected as a whole, and the bottom of the door leaf is hinged on the hinge seat through the bottom shaft. When the span is large, the overall strength must be ensured, and the diameter of the bottom shaft is relatively large. , the size of the corresponding hinge seat and the hoist that drives the bottom shaft to rotate is also relatively large, and the energy consumption during opening and closing is also relatively high.

A lodging steel gate without a central pier is also disclosed in the Chinese patent database, its application number: 200810014314.1, application date: 2008-02-26, publication date: 2008-08-13, the device includes a bottom plate, the bottom plate is connected to retain water The panel, the water retaining panel is connected with at least two support frames, the support frame is connected to the support frame moving device, the support frame moving device includes a slider and a slideway, the slide block is driven by an oil cylinder, and can slide in the slideway; the water retaining panel is provided with There is a rotating shaft, the water retaining panel is arc-shaped, the lower end of the water retaining panel is connected to one end of the flexible leaf, and the other end of the flexible leaf is connected to the base plate. The device has the advantages of simple structure, unrestricted cross-domain, rapid opening and closing, and relatively large flow coefficient. Its weak point is: it is more difficult to replace and maintain the flexible loose-leaf and the bottom water stop. The structure of the gate is relatively thin and the rigidity is small, so it is prone to forced vibration of water flow; sedimentation is easy to occur in front of the gate; when the gate is closed, the force on the cylinder is relatively large.

The existing steel dam is a whole, especially the bottom shaft tube can only be regarded as a whole after installation. Even if the expansion joint is set in the middle span of the bottom shaft tube, when the span is large, it is still difficult to split the bottom plates of two adjacent structural units, and the uneven settlement of the civil structure after the split will bring great damage to the bottom shaft tube. additional force. Therefore, when the span is large, the installation accuracy of the existing steel dam bottom shaft tube is a challenge.

Contents of the invention

The purpose of the present invention is to provide a technical solution of a water blocking device, which makes the gate easy to open and close, stable in structure, flexible and convenient to install, and at the same time, can reduce manufacturing cost and power consumption.

For this reason, the technical solution of the present invention is as follows: a water blocking device, including at least one set of water blocking boards, the water blocking boards are integrally blocked in the river channel, gate walls are provided on both sides of the river channel, and concrete foundations are provided at the bottom of the river channel. The back side of the water blocking board is provided with a supporting pier corresponding to the water blocking board, the bottom of the water blocking board is provided with rollers supported on the concrete foundation, and an oil cylinder is arranged between the water blocking board and the supporting pier, and the two ends of the oil cylinder are respectively hinged on the The supporting pier and the lower part of the water blocking board; the back side of the water blocking board is also provided with a hinged rod, the upper end of the hinged rod is hinged on the back of the water blocking board, the lower end of the hinged rod is hinged on the hinged seat, and the hinged seat is fixed on the concrete basically.

When the device is working, the water blocking plate can be driven to stand up and down by driving the piston rod of the oil cylinder to stretch out and shrink. Compared with the prior art, the beneficial effect of the present invention is that the device provides a technical solution for a new type of water blocking device, which does not need to be provided with a bottom shaft in its structure, which can save investment, and when it is laid down, the water blocking plate can be Close to the bottom of the river, the flow coefficient is large, the water blocking plate can be opened and closed in a single group, and can also be opened and closed at the same time, easy to install, flexible to operate, economical and practical. The orthographic projection of the water blocking plate, the oil cylinder and the hinged rod on the gate wall is in a triangular distribution. The structural rigidity is large, and the components are evenly stressed, which can effectively reduce the probability of forced vibration of the water blocking plate in moving water. It solves the disadvantage that the stress of the existing steel dam is too concentrated on the bottom shaft, bottom shaft flange, crank arm and other components. The water blocking plate can form different orifice openings, so that the water flow can be adjusted steplessly. In the process of opening and closing the water blocking plate, the weight of the water blocking plate and the water pressure can help the oil cylinder to move together, so the average energy consumption of opening and closing is small. When the water blocking plate is erected and laid down, under the joint action of the self-weight of the water blocking plate and the hydraulic force, there is a critical point for the force on the piston rod of the oil cylinder. When this critical point is crossed, the force on the piston rod of the oil cylinder will be under pressure When switching between tension and tension, the corresponding opening and closing energy consumption will be reduced; when the water blocking plate is erected, the water force can compress the water blocking plate to stick to the concrete foundation downward, realizing self-locking, ensuring that the water blocking plate will not Turning over in the water flow, it has a certain overflow capacity as a whole. The device saves the cost of the bottom shaft and hinge seat, and has low cost and less investment. It can be used in various water conservancy constructions such as reservoir construction, river flood discharge, urban water network management, and agricultural irrigation.

As a further improvement of the present invention, each set of water blocking plates corresponds to an oil cylinder and two hinged rods, the oil cylinder is arranged in the middle of the water blocking plate, the four hinge points of the two hinged rods are arranged in a triangle or trapezoidal shape, and the two hinged The hinge point positions of the lower part of the rod are respectively arranged on both sides of the oil cylinder. The technical scheme can make the water blocking plate, the hinged rod and the oil cylinder arranged in a triangular space, further enhance the stability of the water blocking plate, and avoid its displacement in the width direction of the river channel.

As a technical solution of the present invention, each set of water blocking plates corresponds to two oil cylinders and a hinged rod, the hinged rod is located in the middle of the water blocking plate, and the oil cylinders are respectively arranged on both sides of the hinged rod. When working, the oil cylinder can synchronously drive the opening and closing of the water blocking plate, which has the advantage of simple structure.

In order to further ensure the reliable movement of the rollers, roller tracks are embedded on the concrete foundation corresponding to the rollers. The roller track can avoid wear and tear, and the water blocking plate can also be positioned by the roller track to prevent its shifting position.

As a further improvement of the present invention, a bottom water stop is provided on the lower part of the water blocking plate, and the bottom water stop includes a pressing plate and a rubber plate fixed on the water blocking plate, and the rubber plate is arranged between the pressing plate and the water blocking plate Between, the lower end of the rubber plate protrudes downwards outside the water blocking plate. When the water blocking board is erected, the water pressure can directly press the rubber sheet against the concrete foundation to achieve a seal, which can prevent water leakage at the bottom of the water blocking board; when the water blocking board is down, the rubber board can be separated from the concrete foundation to block water There is a certain gap between the bottom of the slab and the concrete foundation, part of the silt and garbage can be washed away by the water flow, and the bottom of the water blocking slab will not be silted up.

In order to prevent larger objects from colliding with the water-stopping board with the water flow, a limiting device is provided on the concrete foundation on the water-facing side of the water-stopping board, and the limiting device protrudes from the surface of the concrete foundation. On the one hand, the limit device can limit the movement limit position of the lower end of the baffle, and on the other hand, it can also block the garbage in the river. In addition, it can also withstand the impact of larger objects in the incoming flow, reduce its impact force, and avoid damage Water barrier.

In order to further ensure the sealing and prevent water leakage between the water blocking boards and between the water blocking boards and the gate wall, side water stoppers are provided between the adjacent groups of water blocking boards and between the side water blocking boards and the gate wall.

Description of drawings

Fig. 1 is the front view of the present invention.

Figure 2 is a top view of the present invention.

Fig. 3 is a left view of the present invention.

FIG. 4 is a partially enlarged view of A in FIG. 3 .

Fig. 5 is a flow chart of the force relationship of the piston rod of the oil cylinder when the water blocking plate is from standing up to down.

Figure 6 is a diagram of the relationship between force and displacement of the piston rod of the oil cylinder.

Among them, 1 gate wall, 2 water blocking board, 3 hinge rod, 4 support pier, 5 concrete foundation, 6 limit device, 7 oil cylinder, 8 roller, 9 rubber plate, 10 pressure plate, 11 hinged seat.

Detailed ways

As shown in Figure 1-4, it is a water blocking device, including several groups of water blocking boards 2, and each group of water blocking boards 2 is welded by steel panels and steel beams; A gate wall 1 is provided on the side, and a concrete foundation 5 is provided at the bottom of the river channel. Side water stoppers are provided between adjacent groups of water blocking boards, and between the side water blocking boards and the gate wall 1; each group of water blocking boards 2 On the back side of the water surface, there is a supporting pier 4 corresponding to the water blocking board. The bottom of the water blocking board 2 is provided with a roller 8 supported on the concrete foundation 5. An oil cylinder 7 is arranged between the water blocking board 2 and the supporting pier 4. The oil cylinder body Hinged on the support pier 4, the extended end of the piston rod of the oil cylinder is hinged on the lower part of the water blocking plate 2; the back of the water blocking plate is also provided with a hinged rod 3, the upper end of which is hinged on the upper part of the back of the water blocking plate 2, and the lower end of the hinged rod 3 Hinged on the hinged seat 11, the hinged seat 11 is fixed on the concrete foundation 5; each set of water blocking boards 2 corresponds to an oil cylinder 7 and two hinged rods 3, the oil cylinder 7 is arranged in the middle of the water blocking board 2, and the two hinged rods 3 The four hinge points are triangular or trapezoidal. When the upper hinge points are connected together, they form a triangle. When they are separated, they are trapezoidal. 7 sides. The lower part of the water-resisting surface of the water-stopping plate 2 is provided with a bottom water-stopping part, which includes a pressing plate 10 and a rubber plate 9 fixed on the water-stopping plate 2, and the rubber plate 9 is arranged between the pressure plate 10 and the water-blocking plate 2, and the rubber plate 9 lower ends protrude downwards outside the water blocking plate 2. The concrete foundation 5 on the water-facing side of the water blocking plate is provided with a number of limiting devices 6 , and the limiting devices 6 protrude from the surface of the concrete foundation 5 .

During this device work, stretch out and contract by the piston rod of driving oil cylinder 7, can drive water blocking plate 2 to stand up and put down, when it stands up, realizes blocking water, when putting down, realizes releasing water. When the water-blocking plate is from standing to laying down, the force on the piston rod of the cylinder can be shown in Figure 5. The thrust F1 of the water on the water-blocking plate is roughly perpendicular to the surface of the water-blocking plate, which comes from the reaction force F2 on the hinge rod and The resultant force of the force F3 from the piston rod of the oil cylinder cancels out F1. Initially, F3 is the thrust. At the critical point, F1 and F2 are opposite and equal, and F3 is zero. After crossing the critical point, F3 becomes pull. Figure 6 can show the whole process of the piston rod being stressed. In the above process, the force of the oil cylinder is small, the driving is easy, and the energy consumption is low. This is why the present invention has an energy-saving effect.

The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and modifications to some of the technical features according to the disclosed technical content without creative work. Deformation, these replacements and deformations are all within the protection scope of the present invention. For example, there are two oil cylinders and a hinged rod corresponding to each group of water blocking boards. The hinged rod is located in the middle of the water blocking board, and the oil cylinders are respectively arranged on both sides of the hinged rod. In addition, roller tracks can be embedded on the concrete foundation corresponding to the rollers. One set of the above-mentioned water blocking plates can also be provided, and multiple sets can also be connected together to form a whole. It is not limited by the width of the river channel, and any number of groups can be freely set.

Claims (7)

1. A water blocking device, comprising at least one group of water blocking boards, the water blocking boards are integrally blocked in the river channel, gate walls are provided on both sides of the river channel, and a concrete foundation is provided at the bottom of the river channel, it is characterized in that: each group of water blocking boards There is a supporting pier corresponding to the water blocking plate on the back side of the water surface, and the bottom of the water blocking plate is supported by rollers on the concrete foundation. There is an oil cylinder between the water blocking plate and the supporting pier. The lower part of the water board; the back side of the water blocking board is also provided with a hinged rod, the upper end of the hinged rod is hinged on the back of the water blocking board, and the lower end of the hinged rod is hinged on the hinged seat, and the hinged seat is fixed on the concrete foundation. 2. A water blocking device according to claim 1, characterized in that: each group of water blocking plates corresponds to an oil cylinder and two hinged rods, the oil cylinder is arranged in the middle of the water blocking plate, and the four hinged rods of the two hinged rods The first hinge point is arranged in a triangle or trapezoidal shape, and the hinge point positions of the lower parts of the two hinge rods are respectively arranged on both sides of the oil cylinder. 3. A water blocking device according to claim 1, characterized in that: each set of water blocking plates corresponds to two oil cylinders and a hinged rod, the hinged rod is located in the middle of the water blocking plate, and the oil cylinders are respectively arranged on the hinged both sides of the rod. 4. A water blocking device according to any one of claims 1-3, characterized in that: said concrete foundation is embedded with roller tracks corresponding to the rollers. 5. A water blocking device according to any one of claims 1-3, characterized in that: the lower part of the water blocking plate is provided with a bottom water stop, and the bottom water stop includes a water stop fixed on the water blocking plate A pressing plate and a rubber plate, the rubber plate is arranged between the pressing plate and the water blocking plate, and the lower end of the rubber plate protrudes downwards outside the water blocking plate. 6. A water blocking device according to any one of claims 1-3, characterized in that: the concrete foundation on the water-facing side of the water blocking plate is provided with a limiting device, and the limiting device protrudes beyond the concrete base surface. 7. A water blocking device according to any one of claims 1-3, characterized in that: side water blocking parts are provided between adjacent groups of water blocking boards and between side water blocking boards and gate walls .