Flap gate supporting device

Abstract

A flap gate supporting device is composed of a bottom shaft, a door plate, a supporting rod, a hydraulic cylinder and a dam body. Wherein four sliding rails are attached to the front end of the door plate, each sliding rail is provided with four supporting arc-shaped grooves, and the four supporting grooves are in smooth transition. The door plate, the supporting rod and the hydraulic cylinder are all installed on the base and form a hinge with the base, and the base is fixed to the dam body. The fan gate is provided with two hydraulic cylinders and four supporting rods, and the front ends of the hydraulic cylinders and the front ends of the supporting rods form hinges through linkage shafts. Four rolling shaft sleeves are installed at the linkage shaft at the front end of the supporting rod, the rolling shaft sleeves and the supporting grooves form a contact pair when water is stored in the gate, and the rolling shaft sleeves and the supporting grooves are separated from each other when the gate lies flat. The two hydraulic cylinders are provided with a synchronizing device, so that synchronous operation of the hydraulic cylinders is ensured. When the gate is used for storing water, the door plate, the supporting rod and the base are hinged to form a triangle, so that the door plate has enough pressure bearing capacity. The gate can fully store water when standing upright and can thoroughly discharge flood when lying flat, fish migration is not affected, and channel smoothness is guaranteed.

Description

Technical Field

[0001] The utility model patent belongs to the field of hydraulic bottom hinged flap gates, which are used for water storage and flood discharge in small and medium-sized rivers, and particularly relates to a flap gate supporting device. Background Art

[0002] A flap gate support device is used for bottom hinge flap gates. The bottom hinge flap gate can lie flat on the riverbed, which ensures the migration of fish and the smooth flow of waterways. However, the gate plate and mechanism are subject to huge water pressure and water torque during water storage, and a strong support device is required. However, the existing bottom hinge flap gate support is insufficient, which poses a hidden danger to the reliability and safety of gate operation. For example, "A Hydraulic Bottom Hinge Flap Gate" (application number 201710115817.7) requires the pressure maintenance of the oil cylinder because the door plate and mechanism are subject to huge water pressure and water torque during flood storage, which has high requirements for the power consumption of the hydraulic station, pipelines and oil cylinder sealing. For example, "A hydraulic gate opening, closing and locking linkage mechanism" (application number 201910456518.9) has the following deficiencies: ① The support rod is between the gate plate and the lifting cylinder, and the torque generated by the support rod on the gate plate hinge is small; ② There are only two water storage positions; ③ The block 9 is triangular, and there is a large acceleration impact when adjusting the water storage position. The roller structure 10 is in line contact with the block 9, which easily causes plastic deformation or scratches on the roller structure 10. Utility Model Content

[0003] The utility model proposes a flap gate support device to adapt to the huge water pressure and water torque borne by the door plate and mechanism when the bottom flap gate is storing flood water, so that the gate can operate safely and reliably. In order to achieve the reliability and safety of the gate when storing water, the utility model adopts the following technical solutions:

[0004] A flap gate supporting device is characterized in that it is composed of a door plate, a rolling sleeve, a linkage shaft, a hydraulic cylinder, a strut, a hydraulic cylinder shaft, a strut shaft, embedded bolts, a cement pier, a dam body, a base, a bottom shaft, a water-stop rubber, etc.

[0005] The front end of the door panel is equipped with four rectangular slide rails I, II, III and IV. Each slide rail is provided with four supporting arc-shaped grooves. When the four supporting arc-shaped grooves contact with the rolling sleeve in sequence, the gate forms four water storage positions with different inclination angles, and the four supporting arc-shaped grooves have a smooth transition.

[0006] Each gate is equipped with two hydraulic cylinders and four support rods, and the two hydraulic cylinders and four support rods are symmetrically arranged along the middle surface of the door panel in the length direction. A group of supports is formed between the cylinders, support rods and bases, and the number of groups can be used as a single set or multiple sets according to the size of the door.

[0007] The door panel, strut and hydraulic cylinder are all installed on the base, and are hingedly connected to the base through the bottom shaft, strut shaft and hydraulic cylinder shaft respectively. The three can rotate around their center to form a hinge structure; the base is cast and fixed in the concrete of the dam body by pre-embedded bolts; the upper end of the hydraulic cylinder and the upper end of the strut are hinged and fixed through the linkage shaft 3 to form a hinge structure; when the gate is filled with water, the rolling sleeve and the supporting groove form a contact pair. When the gate is filled with water, the rolling sleeve is stuck in the supporting groove, and the door panel, strut and base form a triangular stable structure; when the gate is lying flat, the rolling sleeve and the supporting groove are disengaged from each other.

[0008] The support rod is located at the rightmost side of the gate, and the hydraulic cylinder is located between the door plate and the support rod. The two hydraulic cylinders are equipped with a synchronization device.

[0009] The beneficial effects of the utility model are embodied in:

[0010] 1. When the gate is closed to store water, a stable triangle is formed between the hinges of the door panel, the support rod and the base. The stability of the triangle is used to resolve the huge water pressure and water torque on the door panel. The hydraulic cylinder does not need to provide pressure support and can be in a pressure relief state.

[0011] 2. Each slide rail is provided with four supporting arc-shaped grooves. When the four supporting arc-shaped grooves contact with the rolling sleeve in sequence, the gate can form four water storage positions with different inclination angles to meet the water storage requirements of multiple working conditions.

[0012] 3. Smooth transition is adopted between the four supporting arc-shaped grooves. When adjusting the water storage position, no large acceleration impact will be generated. The rolling sleeve and the supporting arc-shaped groove are in surface contact, which improves the bearing capacity of the supporting mechanism and avoids plastic deformation or scratching of the rolling sleeve.

[0013] 4. The support rod is located at the rightmost side of the gate, and the hydraulic cylinder is located between the door plate and the support rod. The support rod can form a larger force arm on the bottom shaft, which increases the reliability of the supporting device.

[0014] 5. Each gate is equipped with multiple hydraulic cylinders and multiple support rods. Multiple hydraulic cylinders have sufficient opening force and opening torque, and multiple support rods have sufficient bearing capacity. Multiple support rods are safe and reliable, with safety reserves. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a flap gate supporting device when it is upright.

[0016] Figure 2 The present invention is a cross-sectional schematic diagram of a flap gate supporting device.

[0017] Figure 3 It is a schematic diagram of a flap gate support device lying flat.

[0018] Figure 4This is a three-dimensional image of the door panel.

[0019] Among them, 1. door panel; 1-1. supporting arc-shaped groove; 1-2. supporting arc-shaped groove; 1-3. supporting arc-shaped groove; 1-4. supporting arc-shaped groove; 2. rolling bushing; 3. linkage shaft; 4. hydraulic cylinder; 5. strut; 6. hydraulic cylinder shaft; 7. strut shaft; 8. embedded bolts; 9. cement pier; 10. dam body; 11. base; 12. bottom shaft; 13. water-stop rubber; slide rail I; slide rail II; slide rail III; slide rail IV. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 4 As shown, a flap gate supporting device is characterized in that it is composed of a door panel 1, a rolling sleeve 2, a linkage shaft 3, a hydraulic cylinder 4, a strut 5, a hydraulic cylinder shaft 6, a strut shaft 7, embedded bolts 8, a cement pier 9, a dam body 10, a base 11, a bottom shaft 12, a water-stop rubber 13, etc.

[0021] The front end of the door panel 1 is provided with four rectangular slide rails I, II, III and IV, each of which is provided with four supporting arc-shaped grooves. When the four supporting arc-shaped grooves contact with the rolling sleeve 2 in sequence, the gate forms four water storage positions with different inclination angles, and the four supporting arc-shaped grooves have a smooth transition.

[0022] The gate is provided with two hydraulic cylinders 4 and four support rods 5, and the two hydraulic cylinders 4 and the four support rods 5 are symmetrically arranged along the middle surface of the length direction of the door panel 1, and a group of supports is formed between the cylinders 4, the support rods 5 and the base 11, and the number of groups can be used as a single set or multiple sets according to the size of the door.

[0023] The door panel 1, the strut 5 and the hydraulic cylinder 4 are all mounted on the base 11, and are hingedly connected to the base 11 through the bottom shaft 12, the strut shaft 7 and the hydraulic cylinder shaft 6 respectively, and the three can rotate around their centers to form a hinge structure; the base 11 is cast and fixed in the concrete of the dam body 10 by pre-embedded bolts 8; the upper end of the hydraulic cylinder 4 and the upper end of the strut 5 are hinged and fixed through the linkage shaft 3 to form a hinge structure; when the gate is filled with water, the rolling sleeve 2 forms a contact pair with the supporting groove. When the gate is filled with water, the rolling sleeve 2 is stuck in the supporting groove, and the door panel 1, the strut 5 and the base 11 form a triangular stable structure; when the gate is lying flat, the rolling sleeve 2 and the supporting groove are disengaged from each other.

[0024] The support rod 5 is located at the rightmost side of the gate, and the hydraulic cylinder 4 is located between the door panel 1 and the support rod 5.

[0025] The two hydraulic cylinders 4 are equipped with synchronization devices.

[0026] Gate opening and closing operation principle:

[0027] (1) Closing process: The hydraulic cylinder is in its longest state, the door panel 1 is in a flat state, the hydraulic control device is started, the cylinder is slowly retracted, driving the support rod 5 and the hydraulic cylinder 4 to rotate counterclockwise, the rolling sleeve 2 slides along the slide rail, and the door panel 1 is gradually erected. When the rolling sleeve 2 slides to the position of the support groove 1-4, the gate rises from the flat state to the first water storage position. Due to the water pressure and the gravity of the door panel, the rolling sleeve 2 is stuck in the support groove 1-4, and the support rod 5 supports the gate; at this time, the door panel 1, the support rod 5, and the base 11 form a stable triangle through the hinges of the three, and the stability of the triangle is used to resist the water pressure and water torque on the door panel 1, and the hydraulic cylinder does not need to provide pressure support; similarly, when the rolling sleeve 2 is stuck in the other three support grooves, the gate can still be in a stable state. Since a smooth transition is set between different support grooves, there will be no large acceleration impact when the rolling sleeve 2 moves between different support grooves. As the hydraulic cylinder continues to shrink, the rolling sleeve 2 gradually slides from the support groove 1-4 to the position of the support groove 1-1. At this time, the hydraulic cylinder 4 is just shrunk to the bottom (minimum length), the gate is completely closed and in a stable state, and the hydraulic cylinder 4 is depressurized and in a pressure-free state.

[0028] (2) Opening process: When the gate is fully closed, the rolling sleeve 2 is stuck in the supporting groove 1-1, and the hydraulic control device is started to slowly extend the hydraulic cylinder 4, driving the support rod 5 and the hydraulic cylinder 4 to rotate clockwise, and the rolling sleeve 2 slides upward synchronously along the slide rail; when the rolling sleeve 2 moves to the junction of the supporting groove 1-1 and the supporting groove 1-2, the gate will tilt slightly forward in the direction of the water; when the rolling sleeve 2 slides into the supporting groove 1-2, the gate opens to the next station; as the hydraulic cylinder continues to extend, the rolling sleeve 2 gradually slides into the supporting groove 1-4, and then the rolling sleeve 2 slides along the slide rail to the front end of the door panel 1 until the gate lies flat and the door panel 1 rests on the concrete pier 9, and the gate is fully opened.

Claims

1. A flap gate support device, characterized in that: The invention comprises a door panel (1), a rolling sleeve (2), a linkage shaft (3), a hydraulic cylinder (4), a strut (5), a hydraulic cylinder shaft (6), a strut shaft (7), embedded bolts (8), a cement pier (9), a dam body (10), a base (11), a bottom shaft (12), and a water-stop rubber (13); the door panel (1), the strut (5), and the hydraulic cylinder (4) are all mounted on the base (11), and are respectively hingedly connected to the base (11) through the bottom shaft (12), the strut shaft (7), and the hydraulic cylinder shaft (6), and the three can rotate around the center thereof. The hinge structure is formed by rotating; the base (11) is cast and fixed on the dam body (10) by embedded bolts (8); the upper end of the hydraulic cylinder (4) and the upper end of the support rod (5) are hinged and fixed by a linkage shaft (3) to form a hinge structure; when the gate is filled with water, the rolling sleeve (2) and the supporting groove form a contact pair; when the gate is filled with water, the rolling sleeve (2) is stuck in the supporting groove, and the door plate (1), the support rod (5) and the base (11) form a triangular stable structure; when the gate is lying flat, the rolling sleeve (2) and the supporting groove are disengaged from each other.

2. A flap gate support device according to claim 1, wherein the front end of the door panel (1) is attached with four rectangular slide rails I, II, III and IV, each slide rail is provided with four supporting arc-shaped grooves, when the four supporting arc-shaped grooves contact with the rolling sleeve (2) in sequence, the gate forms four water storage stations with different inclination angles, and there is a smooth transition between the four supporting arc-shaped grooves.

3. A flap gate support device according to claim 1, characterized in that: The gate is provided with two hydraulic cylinders (4) and four support rods (5), and the two hydraulic cylinders (4) and the four support rods (5) are symmetrically arranged along the middle surface of the length direction of the gate plate (1).

4. A flap gate support device according to claim 1, characterized in that: The support rod (5) is located at the rightmost side of the gate, and the hydraulic cylinder (4) is located between the door panel (1) and the support rod (5).

5. A flap gate support device according to claim 1, characterized in that: The two hydraulic cylinders (4) are equipped with synchronization devices.

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