Gate lifting device for water conservancy and hydropower

Abstract

The utility model relates to the technical field of lifting devices, in particular to a gate lifting device for water conservancy and hydropower. When the gate body is lifted, a rotating shaft, a limiting plate and a trigger block synchronously rotate, in the rotating process, under the interaction of the trigger block and a protruding block, gas in a gas storage cylinder is extruded to enter a cylinder, and under the action of a second piston rod and a connecting plate, a limiting rod is pushed to enter a limiting hole to be connected with the limiting hole in a clamped mode; in the continuous rotating process of the rotating shaft, under the action of a plurality of protruding blocks and a triggering block, a limiting rod can repeatedly and discontinuously enter a limiting hole to be clamped, and discontinuously limiting of the rotating shaft in the rotating process is facilitated; and the rotating shaft can be limited and supported when an operator applies acting force to rotate the rotating shaft, the situation that the gate body suddenly falls off when the applied acting force is weakened is avoided, and the stability of the gate body during lifting is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, in particular to a gate lifting device used for water conservancy and hydropower. Background Art

[0002] Water conservancy projects are projects built to control and allocate natural surface water and groundwater to achieve the purpose of eliminating harm and promoting benefits. Only by building water conservancy projects can we control water flows, prevent floods and disasters, and regulate and distribute water. Among them, gates are one of the most widely used components and also the most important component in water conservancy projects. By opening and closing the gates, the water level in the dam is controlled, thereby achieving the normal operation of water conservancy and hydropower projects.

[0003] The Chinese patent "A gate lifting device for water conservancy and hydropower projects" authorization announcement number: "CN215252705U" is set up with a rope lifting mechanism. The operator holds the hexagonal bent rod and inserts it into the hexagonal groove and rotates it. The rotating shaft drives the winding drum to reel in the wire rope to lift the gate upward. There is no need to use a threaded screw to lift the gate, which avoids the rust of the components and the jamming of the gate, and improves the service life and weather resistance of the device. The rubber sleeve is connected to the outside of the wire rope to further prevent the wire rope from rusting, solving the problem that the components of the existing gate lifting device for water conservancy and hydropower projects are prone to rust.

[0004] In the above scheme, the winding drum is driven by the rotating shaft to reel in the wire rope to achieve the lifting and lowering of the valve. However, since the gate itself has a certain weight, the operator needs to continuously apply force when rotating it. When the force applied by the staff weakens, the gate will lose support and suddenly fall, causing damage to the gate.

[0005] Therefore, a gate lifting device for water conservancy and hydropower is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a gate lifting device for water conservancy and hydropower in order to solve the above-mentioned problem, thereby improving the problem that since the gate itself has a certain weight, the operator needs to continuously apply force when turning it. When the force applied by the operator weakens, the gate will lose support and suddenly fall, causing damage to the gate.

[0007] The utility model achieves the above-mentioned purpose through the following technical solutions: a gate lifting device for water conservancy and hydropower, comprising: a fixed frame, a gate body is installed on the inner side of the fixed frame, two mounting plates are fixedly connected to the top of the fixed frame, a rotating shaft is rotatably connected between the opposite sides of the two mounting plates, a steel wire rope is sleeved on the surface of the rotating shaft, one end of the steel wire rope passes through the fixed frame and is connected to the top of the gate body, and a limiting mechanism is arranged on the top of the fixed frame; wherein, the limiting mechanism comprises a mounting frame fixedly connected to one side of the top of the fixed frame, one end of the rotating shaft passes through the inside of the mounting frame and is fixedly connected to the limiting plate, the surface of the limiting plate is provided with annularly distributed limiting holes, and a limiting component is arranged on the inner wall of the mounting frame.

[0008] Preferably, the position limiting assembly includes a gas cylinder fixedly connected to one side of the inner wall of the installation frame, the inner wall of the gas cylinder is slidably connected to a first piston rod, one end of the first piston rod passes through the gas cylinder and is fixedly connected to a circular plate, the other end of the circular plate is fixedly connected to convex blocks distributed in equal rows, the other end of the position limiting plate is fixedly connected to a mounting rod, one side of the mounting rod is fixedly connected to a trigger block, the surface of the trigger block is in contact with the other end of the circular plate. The interaction between the trigger block and the convex block is conducive to intermittent squeezing of the gas in the gas cylinder.

[0009] Preferably, the limit assembly further comprises a cylinder fixedly connected to the other side of the inner wall of the installation frame, the inner wall of the cylinder is slidably connected with a second piston rod, the bottom end of the second piston rod passes through the cylinder and is fixedly connected with a connecting plate, the bottom end of the connecting plate is slidably connected with a limit rod, and a connecting pipe is provided between the cylinder and the gas storage cylinder. When gas enters the cylinder, the limit rod is pushed into the limit hole by the action of the second piston rod and the connecting plate, and is engaged with the limit hole to limit the limit plate, thereby limiting the rotation axis.

[0010] Preferably, a first spring is fixedly connected between the other end of the first piston rod and the inner wall of the gas reservoir. Under the action of the first spring, when the trigger block releases the squeezing of the protrusion, it is conducive to the gas to flow back into the gas reservoir, so that the limit rod is released from the clamping connection with the limit hole, ensuring the normal rotation of the rotating shaft.

[0011] Preferably, a slider is slidably connected to the bottom end of the connecting plate, the bottom end of the slider is fixedly connected to the top end of the limiting rod, and a second spring is fixedly connected between the two sides of the slider and the inner wall of the connecting plate. Under the action of the slider and the second spring, a certain amount of activity space is given to the limiting rod when it enters the limiting hole, which is conducive to ensuring that the limiting rod smoothly enters the limiting hole, thereby ensuring the stability of the device when in use.

[0012] Preferably, the limiting hole is spherical, and the bottom end of the limiting rod is curved into a sphere. When the rotating shaft drives the limiting plate to rotate, the limiting rod is facilitated to be separated from the limiting hole by the action of the spherical surface of the inner wall of the limiting hole and the spherical surface of the bottom end of the limiting rod.

[0013] Preferably, the shapes of the protrusion and the trigger block are both set to be half a sphere, and the diameter of the trigger block is larger than the diameter of the protrusion, which is conducive to the trigger block to better squeeze the protrusion.

[0014] Preferably, the opening of the limiting hole is trumpet-shaped, which is conducive to making the limiting rod enter the limiting hole better.

[0015] The beneficial effects of the utility model are:

[0016] 1. When the gate body is lifted, the rotating shaft, the limit plate and the trigger block are rotated synchronously. During the rotation process, the interaction between the trigger block and the protrusion is conducive to squeezing the gas in the gas storage cylinder into the cylinder, and the limit rod is pushed into the limit hole under the action of the second piston rod and the connecting plate, and is engaged with the limit hole to limit the limit plate. During the continuous rotation of the rotating shaft, under the action of multiple protrusions and the trigger block, the limit rod will repeatedly and intermittently enter the limit hole for engagement, which is conducive to intermittently limiting the rotating shaft during the rotation process, and is conducive to enabling the operator to limit the rotating shaft when applying a force to rotate the rotating shaft, thereby avoiding the gate body from suddenly falling when the applied force is weakened, and ensuring the stability of the gate body during lifting;

[0017] 2. Under the action of the slider and the second spring, a certain amount of activity space is given to the limit rod when it enters the limit hole, which is conducive to ensuring that the limit rod smoothly enters the limit hole, thereby ensuring the stability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0020] Figure 3 It is a cross-sectional view of the installation frame of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0022] Figure 5 It is a cross-sectional view of the cylinder and the connecting plate of the utility model.

[0023] In the figure: 1, fixed frame; 2, gate body; 3, mounting plate; 4, rotating shaft; 5, wire rope; 6, limiting mechanism; 601, mounting frame; 602, limiting plate; 603, limiting hole; 604, limiting assembly; 6041, air storage cylinder; 6042, first piston rod; 6043, round plate; 6044, bump; 6045, mounting rod; 6046, trigger block; 6047, cylinder; 6048, second piston rod; 6049, connecting plate; 60410, limiting rod; 60411, connecting pipe; 60412, first spring; 60413, slider; 60414, second spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] When implementing: Figure 1-5 As shown, a gate lifting device for water conservancy and hydropower comprises: a fixed frame 1, a gate body 2 is installed on the inner side of the fixed frame 1, two mounting plates 3 are fixedly connected to the top of the fixed frame 1, a rotating shaft 4 is rotatably connected between the opposite sides of the two mounting plates 3, a steel wire rope 5 is sleeved on the surface of the rotating shaft 4, one end of the steel wire rope 5 passes through the fixed frame 1 and is connected to the top of the gate body 2, and a limiting mechanism 6 is arranged at the top of the fixed frame 1; wherein, the limiting mechanism 6 comprises a mounting frame 601 fixedly connected to one side of the top of the fixed frame 1, one end of the rotating shaft 4 passes through the inside of the mounting frame 601 and is fixedly connected to a limiting plate 602, a surface of the limiting plate 602 is provided with annularly distributed limiting holes 603, and an inner wall of the mounting frame 601 is provided with a limiting component 604.

[0026] The gate body 2 is slidingly connected to the inner wall of the fixed frame 1, the surface of the wire rope 5 is covered with a rubber sleeve, and the top of the gate body 2 is movably connected to the wire rope 5, and the connection method is the same as that in the original scheme. The top of the fixed frame 1 is fixedly connected to a protective frame, and the mounting plate 3 is arranged inside the protective frame. The other end of the rotating shaft 4 passes through the mounting plate 3 and the protective frame in sequence. When the gate body 2 needs to be lifted, the operator holds the hexagonal bent rod and inserts it into the hexagonal groove at the other end of the rotating shaft 4 and rotates it, thereby driving the rotating shaft 4 to rotate to reel in the wire rope 5, thereby realizing the lifting of the gate body 2. This operation method is the same as that in the original scheme.

[0027] like Figure 3 , Figure 4 and Figure 5As shown, the limiting assembly 604 includes an air cylinder 6041 fixedly connected to one side of the inner wall of the mounting frame 601, the inner wall of the air cylinder 6041 is slidably connected with a first piston rod 6042, one end of the first piston rod 6042 passes through the air cylinder 6041 and is fixedly connected with a circular plate 6043, the other end of the circular plate 6043 is fixedly connected with equally distributed protrusions 6044, the other end of the limiting plate 602 is fixedly connected with a mounting rod 6045, one side of the mounting rod 6045 is fixedly connected with a trigger block 6046, and the surface of the trigger block 6046 is in contact with the other end of the circular plate 6043. The limiting assembly 604 also includes a cylinder 6047 fixedly connected to the other side of the inner wall of the installation frame 601, the inner wall of the cylinder 6047 is slidably connected to a second piston rod 6048, the bottom end of the second piston rod 6048 passes through the cylinder 6047 and is fixedly connected to a connecting plate 6049, the bottom end of the connecting plate 6049 is slidably connected to a limiting rod 60410, and a connecting pipe 60411 is provided between the cylinder 6047 and the gas storage cylinder 6041. The shapes of the protrusion 6044 and the trigger block 6046 are both set to be half a sphere, and the diameter of the trigger block 6046 is larger than the diameter of the protrusion 6044.

[0028] The number of the protrusions 6044 is the same as the number of the limiting holes 603, and the positions correspond. The gas storage cylinder 6041 stores gas. When the rotating shaft 4 rotates, it drives the limiting plate 602 to rotate synchronously, so that the mounting rod 6045 drives the trigger block 6046 to rotate synchronously. The center of the circular plate 6043 and the center of the rotating shaft 4 are on the same horizontal plane, and the trigger block 6046 rotates with the center of the rotating shaft 4 as the rotation center point. The rotation path of the trigger block 6046 will coincide with the protrusion 6044. When the rotating shaft 4 rotates and drives the trigger block 6046 to contact the protrusion 6044, under the action of the arc surface of the trigger block 6046 and the protrusion 6044, the trigger block 6046 will squeeze the protrusion 6044. One of the limiting holes 603 is located below the limiting rod 60410. When the trigger block 6046 is in contact with it When one of the protrusions 6044 is squeezed, it will drive one of the limit holes 603 to be located below the limit rod 60410. When the protrusion 6044 is squeezed, it will drive the circular plate 6043 to move to the side away from the trigger block 6046. At this time, the movement of the circular plate 6043 will drive the first piston rod 6042 to squeeze the gas in the gas storage cylinder 6041. The squeezed gas will enter the cylinder 6047 through the connecting pipe 60411 and push the second piston rod 6048 to move downward, thereby pushing the connecting plate 6049 to drive the limit rod 60410 to move downward synchronously. When the limit rod 60410 moves downward, it will enter the limit hole 603 and be clamped with the limit hole 603, so that the rotating shaft 4 is limited by the limit plate 602 to prevent the gate body 2 from falling suddenly due to the weakening of the force applied by the operator.

[0029] A first spring 60412 is fixedly connected between the other end of the first piston rod 6042 and the inner wall of the air storage cylinder 6041 .

[0030] When the operator continuously applies force to rotate the rotating shaft 4, the trigger block 6046 will be driven to release the squeezing of the protrusion 6044. At this time, under the action of the first spring 60412, the gas in the cylinder 6047 will flow back into the gas storage cylinder 6041, so that the limiting rod 60410 will lose its resistance. Under the rotation of the rotating shaft 4 and the action of the limiting hole 603, the limiting rod 60410 will be released from the clamping of the limiting hole 603, and the limiting of the rotating shaft 4 will be released.

[0031] When the trigger block 6046 rotates and contacts the protrusion 6044 again and presses the protrusion 6044, the limiting rod 60410 will enter the limiting hole 603 again, and this operation will be repeated during the rotation of the rotating shaft 4.

[0032] like Figure 5 As shown, the bottom end of the connecting plate 6049 is slidably connected to a slider 60413, the bottom end of the slider 60413 is fixedly connected to the top end of the limiting rod 60410, and a second spring 60414 is fixedly connected between both sides of the slider 60413 and the inner wall of the connecting plate 6049.

[0033] A slide groove matching the slider 60413 is provided at the bottom end of the connecting plate 6049, and the other end of the second spring 60414 is fixedly connected to the inner wall of the slide groove. When the limiting rod 60410 moves downward into the limiting hole 603, it can better enter the limiting hole 603 under the action of the slider 60413.

[0034] like Figure 4 and Figure 5 As shown, the shape of the limiting hole 603 is a spherical hole, and the bottom end of the limiting rod 60410 is bent into a spherical shape. The opening of the limiting hole 603 is trumpet-shaped. The shape of the limiting hole 603 matches the shape of the end of the limiting rod 60410.

[0035] When the utility model is in use, when the gate body 2 is lifted, the steel wire rope 5 is wound up by rotating the rotating shaft 4, so as to realize the lifting of the gate body 2. When the rotating shaft 4 rotates, it drives the limit plate 602 to rotate synchronously, so that the mounting rod 6045 drives the trigger block 6046 to rotate synchronously, and the rotation path of the trigger block 6046 will coincide with the protrusion 6044. When the rotating shaft 4 drives the trigger block 6046 to contact the protrusion 6044, under the action of the arc surface of the trigger block 6046 and the protrusion 6044, the trigger block 6046 will squeeze the protrusion 6044. When the protrusion 6044 is squeezed, the circular plate 6043 will be driven to move to the side away from the trigger block 6046. At this time, the movement of the circular plate 6043 will drive the first piston rod 6042 to squeeze the gas in the gas storage cylinder 6041, and the squeezed gas will enter the cylinder 6047 through the connecting pipe 60411. And push the second piston rod 6048 to move downward, thereby pushing the connecting plate 6049 to drive the limiting rod 60410 to move downward synchronously and enter the limiting hole 603, and engage with the limiting hole 603, so as to limit the rotating shaft 4 through the limiting plate 602. When the operator continues to apply force to rotate the rotating shaft 4, it will drive the trigger block 6046 to release the squeezing of the protrusion 6044. At this time, under the action of the first spring 60412, the gas in the cylinder 6047 will flow back into the gas storage cylinder 6041, and the limiting rod 60410 will lose its resistance and release the engagement with the limiting hole 603. When the trigger block 6046 rotates to contact and squeeze the protrusion 6044 again, the limiting rod 60410 will enter the limiting hole 603 again, thereby realizing intermittent limiting of the rotating shaft 4 during the rotation process.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A gate lifting device for water conservancy and hydropower, characterized in that: include: A fixed frame (1), a gate body (2) is installed on the inner side of the fixed frame (1), two mounting plates (3) are fixedly connected to the top of the fixed frame (1), a rotating shaft (4) is rotatably connected between the opposite sides of the two mounting plates (3), a steel wire rope (5) is sleeved on the surface of the rotating shaft (4), one end of the steel wire rope (5) passes through the fixed frame (1) and is connected to the top of the gate body (2), and a limiting mechanism (6) is provided at the top of the fixed frame (1); The limiting mechanism (6) comprises a mounting frame (601) fixedly connected to one side of the top end of the fixing frame (1); one end of the rotating shaft (4) passes through the interior of the mounting frame (601) and is fixedly connected to a limiting plate (602); a surface of the limiting plate (602) is provided with limiting holes (603) distributed in an annular pattern; and a limiting component (604) is provided on the inner wall of the mounting frame (601).

2. A gate lifting device for water conservancy and hydropower according to claim 1, characterized in that: The limiting assembly (604) comprises an air cylinder (6041) fixedly connected to one side of the inner wall of the mounting frame (601); the inner wall of the air cylinder (6041) is slidably connected to a first piston rod (6042); one end of the first piston rod (6042) passes through the air cylinder (6041) and is fixedly connected to a circular plate (6043); the other end of the circular plate (6043) is fixedly connected to convex blocks (6044) distributed in equal rows; the other end of the limiting plate (602) is fixedly connected to a mounting rod (6045); one side of the mounting rod (6045) is fixedly connected to a trigger block (6046); the surface of the trigger block (6046) is in contact with the other end of the circular plate (6043).

3. A gate lifting device for water conservancy and hydropower according to claim 1, characterized in that: The limiting assembly (604) further comprises a cylinder (6047) fixedly connected to the other side of the inner wall of the mounting frame (601); a second piston rod (6048) is slidably connected to the inner wall of the cylinder (6047); the bottom end of the second piston rod (6048) passes through the cylinder (6047) and is fixedly connected to a connecting plate (6049); the bottom end of the connecting plate (6049) is slidably connected to a limiting rod (60410); and a connecting pipe (60411) is provided between the cylinder (6047) and the air storage cylinder (6041).

4. A gate lifting device for water conservancy and hydropower according to claim 2, characterized in that: A first spring (60412) is fixedly connected between the other end of the first piston rod (6042) and the inner wall of the air storage cylinder (6041).

5. A gate lifting device for water conservancy and hydropower according to claim 3, characterized in that: The bottom end of the connecting plate (6049) is slidably connected to a slider (60413), the bottom end of the slider (60413) is fixedly connected to the top end of the limiting rod (60410), and a second spring (60414) is fixedly connected between the two sides of the slider (60413) and the inner wall of the connecting plate (6049).

6. A gate lifting device for water conservancy and hydropower according to claim 3, characterized in that: The limiting hole (603) is in the shape of a spherical hole, and the bottom end of the limiting rod (60410) is bent into a spherical shape.

7. A gate lifting device for water conservancy and hydropower according to claim 2, characterized in that: The shapes of the protrusion (6044) and the trigger block (6046) are both set to be half a sphere, and the diameter of the trigger block (6046) is larger than the diameter of the protrusion (6044).

8. A gate lifting device for water conservancy and hydropower according to claim 1, characterized in that: The opening of the limiting hole (603) is in a trumpet shape.

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