Limiting device of buoyancy tank type gate

Abstract

The invention provides a limiting device of a buoyancy tank type gate. The limiting device comprises a hollow L-shaped shell and a telescopic assembly arranged in the L-shaped shell. The telescopic assembly comprises a guide cylinder, a guide piston arranged in the guide cylinder in a sliding and penetrating mode, a plurality of telescopic blocks arranged outside the guide cylinder in a surrounding mode and a plurality of springs connected between the guide cylinder and the telescopic blocks; the limiting device penetrates through a gate box body through a long rod body of the L-shaped shell penetrating through a reserved inserting opening of the buoyancy tank type gate. At the inserting opening, the portions, exposed out of the L-shaped shell, of the telescopic blocks located at the working positions and detachable fasteners abut against the inner wall and the outer wall of the box body respectively, and fastening between the limiting device and the buoyancy tank type gate is achieved. The floating box type gate is easy, convenient and rapid to disassemble and assemble, easy to operate and capable of being installed under the condition that no access door groove exists and disassembled under the condition that the access door groove exists, and use of the floating box type gate under the condition that the access door groove exists is not affected.

Description

Technical Field

[0001] This invention relates to a floating gate, and more specifically to a limiting device for a floating gate. Background Technology

[0002] Floating box locks are large, enclosed box-shaped structures, typically divided into multiple independent compartments by bulkheads. Floating box locks increase their weight by filling hollow pontoons with water, and are commonly used as maintenance locks, significantly saving on raw materials.

[0003] The difficulties in installing a floating pontoon gate without a maintenance gate slot are: at the start of construction, the pontoon is not yet filled with water, and the hollow pontoon is subject to buoyancy, which causes the gate to float easily, making it difficult to control and impossible to install correctly in the designated position. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention proposes a limiting device for a floating box gate, which is simple and quick to assemble and disassemble, easy to operate, can be installed in the absence of a maintenance gate slot, and can be removed when a maintenance gate slot is available, without affecting the use of the floating box gate in the presence of a maintenance gate slot.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A limiting device for a floating box gate includes a hollow L-shaped shell and a telescopic component built into the L-shaped shell; The L-shaped outer casing has a pre-reserved expansion hole and guide hole on the long rod. The telescopic assembly includes a guide cylinder, a guide piston that slides through the guide cylinder, several telescopic blocks surrounding the guide cylinder, and several springs connected between the guide cylinder and each telescopic block. The entire assembly is installed in the long rod of the L-shaped outer shell through the guide cylinder. The guide piston and the several telescopic blocks form a rolling engagement. The telescopic assembly is driven by the exposed section of the guide piston that passes through the guide hole of the outer shell and is exposed outside the L-shaped outer shell. Alternatively, it can be driven by external force through the drive end to slide the guide piston along the guide cylinder. Through the rolling engagement between the guide piston and the several telescopic blocks, it can drive each telescopic block to open outward until it passes through the telescopic hole of the outer shell and is partially exposed outside the L-shaped outer shell, so that each telescopic block reaches the working position. Alternatively, it can release the external force and rely on the elastic force of the springs to drive each telescopic block to retract inward until it is completely built into the L-shaped outer shell, so that each telescopic block returns to the initial position. When each telescopic block is in the initial position, the spring is in a natural state. The limiting device passes through the pre-reserved socket of the floating box gate via a long rod of the L-shaped outer shell, penetrating the gate box. The rod section with the telescopic hole of the outer shell is inserted into the box, while the rod section with the guide hole of the outer shell is exposed outside the box and hooked to the side pier by a short rod. At the socket, the parts of each telescopic block in the working position that are exposed outside the L-shaped outer shell and the detachable fasteners are respectively pressed against the inner and outer walls of the box to achieve the fastening between the limiting device and the floating box gate.

[0006] The structural features of this invention also lie in: In the telescopic component: An axial central hole is formed inside the guide cylinder, extending to one side of the shaft end. Multiple guide holes are reserved on the side wall of the cylinder. The lengths of the axial central hole and the guide holes are arranged parallel to the long rod of the L-shaped outer shell. The guide piston is an L-shaped rod. The short rod passes through the guide hole of the outer shell and protrudes outside the L-shaped outer shell, serving as the driving end. The long rod is cylindrical and slides through the axial central hole. The long rod has multiple sliding rods, which are evenly spaced along the circumference of the guide cylinder. Each sliding rod is connected to the long rod at one end and extends radially along the guide cylinder. The other end is fitted with a rolling ball. Each sliding rod passes through the guide hole of the cylinder in a corresponding manner and can slide along the length of the guide hole. The end with the ball extends out of the guide cylinder. Through the cooperation between the sliding rod and the guide hole of the cylinder, the guide piston can reciprocate along the axial central hole within the length range of the guide hole of the cylinder. The number and position of the telescopic blocks are matched with each sliding rod. Each telescopic block is equidistantly distributed around the central axis of the guide cylinder along the circumferential direction, and is arranged radially around the periphery of the guide cylinder, and is aligned with each sliding rod along the radial direction of the guide cylinder. The telescopic blocks are inclined, with one end hinged to the guide cylinder and the hinge axis arranged along the tangent of the guide piston. The other end is a limiting part and is connected to the guide cylinder by a spring. The deformation direction of the spring is arranged along the radial direction of the guide cylinder. The telescopic blocks have sliding grooves, and the sliding rod of the guide piston always maintains rolling engagement with the sliding grooves through the ball at the end. The guide piston moves the slide rod along the length of the guide hole in the cylinder. The rolling action between the ball and the groove pushes the telescopic block to rotate outward around the hinge axis to the working position, causing the spring to deform and the limiting part to pass through the telescopic hole of the outer shell and be exposed outside the L-shaped outer shell.

[0007] The guide cylinder is screwed into the long rod of the L-shaped outer shell by means of an external threaded section.

[0008] The outer peripheral wall of the guide cylinder is provided with a ring of fixing plate, and the telescopic block is hinged to the fixing plate.

[0009] The fastener includes an externally threaded section on the long rod of the L-shaped outer shell, and a matching nut. The long rod of the L-shaped outer shell is inserted into the socket of the floating box gate. The nut, which is screwed onto the externally threaded section, is tightened until it abuts against the outer wall of the floating box gate. The drive end of the guide piston always maintains a distance from the nut. The parts of each telescopic block in the working position that are exposed outside the L-shaped outer shell always maintain a distance from the nut.

[0010] The telescopic block is provided in four sets.

[0011] The short rod of the L-shaped shell is conical in shape and smoothly transitions to the long rod through a rounded transition, with a pointed end.

[0012] Compared with existing technologies, the beneficial effects of this invention are reflected in: Compared to traditional installation methods such as welding hooks and rope fixing, the present invention provides a limiting device for the floating box gate. Its structure is simple yet ingenious, allowing for convenient assembly and disassembly with the floating box gate. It is easy to operate and implement, effectively and reliably controlling the position of the floating box gate and preventing it from being affected by buoyancy. It can be installed in the absence of a maintenance gate slot and removed when a maintenance gate slot is available. After disassembly, it will not affect the use of the floating box gate in the presence of a maintenance gate slot. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial structural diagram of the L-shaped outer shell long rod; Figure 3 This is a schematic diagram of the telescopic assembly when each telescopic block is in its initial position; Figure 4 This is a schematic diagram of the telescopic assembly when each telescopic block is in the working position; Figure 5 This is a structural schematic diagram of the guide cylinder; Figure 6 This is a schematic diagram of the guide piston structure; Figure 7 This is a structural diagram of the telescopic block; Figure 8 This is an application example diagram of the present invention.

[0014] In the picture: 11. Floating sluice gate; 12. Side piers; 2. L-shaped housing; 21. Housing expansion hole; 22. Housing guide hole; 23. External thread section; 3. Telescopic assembly; 31. Guide cylinder; 311. Axial central hole; 312. Cylinder guide hole; 313. Fixing plate; 32. Guide piston; 321. Slide rod; 322. Ball bearing; 33. Telescopic block; 331. Limiting part; 332. Slide groove; 34. Spring; 4 nuts. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please refer to Figures 1 to 8 The limiting device of the floating box gate in this embodiment includes a hollow L-shaped shell 2 and a telescopic component 3 built into the L-shaped shell 2; L-shaped outer casing 2, with a pre-reserved outer casing expansion hole 21 and outer casing guide hole 22 on the long rod body; The telescopic assembly 3 includes a guide cylinder 31, a guide piston 32 slidably passing through the guide cylinder 31, several telescopic blocks 33 surrounding the guide cylinder 31, and several springs 34 respectively connecting the guide cylinder 31 and each telescopic block 33. The entire assembly is installed in the long rod of the L-shaped outer casing 2 through the guide cylinder 31. The guide piston 32 and the several telescopic blocks 33 form a rolling engagement. The telescopic assembly 3 is driven by the exposed section of the guide piston 32 passing through the guide hole 22 of the outer casing and protruding outside the L-shaped outer casing 2, or according to... External force drives the guide piston 32 to slide along the guide cylinder 31 via the drive end. Through the rolling cooperation between the guide piston 32 and several telescopic blocks 33, each telescopic block 33 is driven to open outward until it passes through the telescopic hole 21 of the outer shell, so that part of it is exposed outside the L-shaped outer shell 2, so that each telescopic block 33 reaches the working position. Alternatively, the external force is released and the elastic force of the spring 34 drives each telescopic block 33 to retract inward until it is completely built into the L-shaped outer shell 2, so that each telescopic block 33 returns to the initial position. When each telescopic block 33 is in the initial position, the spring 34 is in a natural state. The limiting device passes through the pre-reserved socket of the floating box gate 11 via the long rod of the L-shaped outer shell 2, and extends the rod section with the outer shell telescopic hole 21 into the box, while the rod section with the outer shell guide hole 22 protrudes out of the box and is hooked onto the side pier 12 by the short rod. At the socket, the parts of each telescopic block 33 in the working position that are exposed outside the L-shaped outer shell 2 and the detachable fasteners respectively abut against the inner and outer walls of the box, thereby achieving the fastening between the limiting device and the floating box gate 11.

[0017] In this embodiment, the limiting device of the floating gate 11 also includes the following structural features in its specific implementation: In telescopic component 3: An axial central hole 311 is formed inside the guide cylinder 31, extending to one side of the shaft end. Multiple cylinder guide holes 312 are reserved on the side wall of the cylinder. The lengths of the axial central hole 311 and the cylinder guide holes 312 are arranged parallel to the long rod of the L-shaped outer shell 2. The guide piston 32 is an L-shaped rod. The short rod part passes through the guide hole 22 of the outer shell and is exposed outside the L-shaped outer shell 2 as the driving end. The long rod part is cylindrical and slides through the axial central hole 311. The long rod part has multiple sliding rods 321. The multiple sliding rods 321 are evenly distributed along the circumference of the guide cylinder 31. Each sliding rod 321 is connected to the long rod part at one end and extends radially along the guide cylinder 31. The other end is fitted with a rolling ball 322. Each sliding rod 321 passes through the guide hole 312 of the cylinder in a corresponding manner and can slide along the length of the guide hole 312. The end with the ball 322 extends out of the guide cylinder 31. Through the cooperation of the sliding rod 321 and the guide hole 312, the guide piston 32 can slide back and forth along the axial central hole 311 within the length range of the guide hole 312. The number and position of the telescopic blocks 33 match the sliding rods 321. The telescopic blocks 33 are equidistantly distributed around the central axis of the guide cylinder 31 along the circumferential direction, and are arranged radially around the periphery of the guide cylinder 31, and are aligned with the sliding rods 321 in the radial direction of the guide cylinder 31. The telescopic blocks 33 are inclined, with one end hinged to the guide cylinder 31 and the hinge axis arranged along the tangent of the guide piston 32. The other end is a limiting part 331, which is connected to the guide cylinder 31 by a spring 34. The deformation direction of the spring 34 is arranged in the radial direction of the guide cylinder 31. The telescopic blocks 33 have a sliding groove 332. The sliding rods 321 of the guide piston 32 always maintain a rolling engagement with the sliding groove 332 through the ball bearings 322 at the end. Guide piston 32 drives slide rod 321 to slide along the length of guide hole 312 in cylinder. Relying on the rolling cooperation between ball 322 and slide groove 332, telescopic block 33 is pushed to rotate outward around hinge axis to working position, causing spring 34 to deform and limiting part 331 to pass through telescopic hole 21 of outer shell and be exposed outside L-shaped outer shell 2.

[0018] The guide hole 22 of the outer shell is arranged parallel to the long rod of the L-shaped outer shell 2, and the driving end of the guide piston 32 moves along the guide hole 22 of the outer shell along the length of the hole.

[0019] The guide cylinder 31 is screwed into the long rod of the L-shaped outer shell 2 by the external thread section 23.

[0020] The outer peripheral wall of the guide cylinder 31 is provided with a ring of fixing plate 313, and the telescopic block 33 is hinged to the fixing plate 313.

[0021] The fasteners include an externally threaded section 23 on the long rod of the L-shaped housing 2, and a matching nut 4. The long rod of the L-shaped housing 2 is inserted into the socket of the floating box gate 11. The nut 4, which is screwed onto the externally threaded section 23, is tightened until it abuts against the outer wall of the box of the floating box gate 11. The drive end of the guide piston 32 always maintains a distance from the nut 4. The parts of each telescopic block 33 in the working position that are exposed outside the L-shaped housing 2 always maintain a distance from the nut 4.

[0022] The telescopic block 33 has four sets.

[0023] The short rod of the L-shaped outer shell 2 is conical in shape, and it transitions smoothly to the long rod through a rounded shape, with a pointed end.

[0024] The following is an application example of the limiting device of the floating gate 11 in this embodiment: Before hoisting the floating gate 11, first, put the nut 4 from the fastener onto the external thread section 23 of the L-shaped rod. With each telescopic block 33 in its initial position, insert the limiting device into the pre-reserved slot of the floating gate 11, so that the section of the L-shaped rod with the outer shell telescopic hole 21 extends into the box, and the section of the L-shaped rod with the outer shell guide hole 22 protrudes outside the box. Then, apply external force to the driving end of each guide piston 32, so that the guide piston 32 moves forward along the outer shell guide hole 22. The rolling engagement between the ball 322 at the end of the sliding rod 321 of the guide piston 32 and the sliding groove 332 on the telescopic block 33 is achieved. Push each telescopic block 33 to rotate outward around the hinge axis to the working position, and the limiting part 331 passes through the telescopic hole 21 of the outer shell and is exposed outside the L-shaped outer shell 2. At this time, the spring 34 has been deformed. Then, pull the limiting device outward until the limiting part 331 of each telescopic block 33 completely abuts against the inner wall of the box at the insertion point and the limiting device can no longer be pulled outward. Then tighten the nut 4 on the L-shaped rod so that the nut 4 abuts against the outer wall of the box at the insertion point. Thus, the clamping force between the limiting part 331 of each telescopic block 33 and the nut 4 is used to fasten the limiting device to the floating box gate 11, and the installation of the limiting device on the floating box gate 11 is completed. After the floating gate 11 is used, open the drain valve and air vent valve of the gate. The water inside the gate will be automatically discharged. After all the water has flowed out, close all drain valves and air vent valves. Then, the gate will slowly float up. When the gate floats to its maximum height, the workers will remove the limiting device by boat. During removal, first loosen the nut 4 on the L-shaped rod, then apply external force to make the device extend deeper into the box along the insertion port, leaving enough operating space for the resetting of the telescopic block 33. Then, make the guide piston 32 move in the opposite direction along the guide hole 22 of the outer shell. Relying on the rolling engagement between the ball 322 at the end of the slide rod 321 of the guide piston 32 and the slide groove 332 on the telescopic block 33, and with the help of the elastic force of the spring 34, make each telescopic block 33 retract inward around the hinge axis to the initial position, and then the limiting device can be taken out of the insertion hole. Finally, remove the nut 4 on the L-shaped rod, thus completing the disassembly of the limiting device. After the limit device is removed, the floating gate 11 can be towed to a suitable position by a powered vessel and then lifted out.

[0025] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A limiting device for a floating gate, characterized in that: It includes a hollow L-shaped outer shell and a telescopic component built into the L-shaped outer shell; The L-shaped outer casing has a pre-reserved expansion hole and guide hole on the long rod. The telescopic assembly includes a guide cylinder, a guide piston that slides through the guide cylinder, several telescopic blocks surrounding the guide cylinder, and several springs connected between the guide cylinder and each telescopic block. The entire assembly is installed in the long rod of the L-shaped outer shell through the guide cylinder. The guide piston and the several telescopic blocks form a rolling engagement. The telescopic assembly is driven by the exposed section of the guide piston that passes through the guide hole of the outer shell and is exposed outside the L-shaped outer shell. Alternatively, it can be driven by external force through the drive end to slide the guide piston along the guide cylinder. Through the rolling engagement between the guide piston and the several telescopic blocks, it can drive each telescopic block to open outward until it passes through the telescopic hole of the outer shell and is partially exposed outside the L-shaped outer shell, so that each telescopic block reaches the working position. Alternatively, it can release the external force and rely on the elastic force of the springs to drive each telescopic block to retract inward until it is completely built into the L-shaped outer shell, so that each telescopic block returns to the initial position. When each telescopic block is in the initial position, the spring is in a natural state. The limiting device passes through the pre-reserved socket of the floating box gate via a long rod of the L-shaped outer shell, penetrating the gate box. The rod section with the telescopic hole of the outer shell is inserted into the box, while the rod section with the guide hole of the outer shell is exposed outside the box and hooked to the side pier by a short rod. At the socket, the parts of each telescopic block in the working position that are exposed outside the L-shaped outer shell and the detachable fasteners are respectively pressed against the inner and outer walls of the box to achieve the fastening between the limiting device and the floating box gate.

2. The limiting device for the floating gate according to claim 1, characterized in that: In the telescopic component: An axial central hole is formed inside the guide cylinder, extending to one side of the shaft end. Multiple guide holes are reserved on the side wall of the cylinder. The lengths of the axial central hole and the guide holes are arranged parallel to the long rod of the L-shaped outer shell. The guide piston is an L-shaped rod. The short rod passes through the guide hole of the outer shell and protrudes outside the L-shaped outer shell, serving as the driving end. The long rod is cylindrical and slides through the axial central hole. The long rod has multiple sliding rods, which are evenly spaced along the circumference of the guide cylinder. Each sliding rod is connected to the long rod at one end and extends radially along the guide cylinder. The other end is fitted with a rolling ball. Each sliding rod passes through the guide hole of the cylinder in a corresponding manner and can slide along the length of the guide hole. The end with the ball extends out of the guide cylinder. Through the cooperation between the sliding rod and the guide hole of the cylinder, the guide piston can reciprocate along the axial central hole within the length range of the guide hole of the cylinder. The number and position of the telescopic blocks are matched with each sliding rod. Each telescopic block is equidistantly distributed around the central axis of the guide cylinder along the circumferential direction, and is arranged radially around the periphery of the guide cylinder, and is aligned with each sliding rod along the radial direction of the guide cylinder. The telescopic blocks are inclined, with one end hinged to the guide cylinder and the hinge axis arranged along the tangent of the guide piston. The other end is a limiting part and is connected to the guide cylinder by a spring. The deformation direction of the spring is arranged along the radial direction of the guide cylinder. The telescopic blocks have sliding grooves, and the sliding rod of the guide piston always maintains rolling engagement with the sliding grooves through the ball at the end. The guide piston moves the slide rod along the length of the guide hole in the cylinder. The rolling action between the ball and the groove pushes the telescopic block to rotate outward around the hinge axis to the working position, causing the spring to deform and the limiting part to pass through the telescopic hole of the outer shell and be exposed outside the L-shaped outer shell.

3. The limiting device for the floating gate according to claim 1, characterized in that: The guide cylinder is screwed into the long rod of the L-shaped outer shell by means of an external threaded section.

4. The limiting device for the floating gate according to claim 2, characterized in that: The outer peripheral wall of the guide cylinder is provided with a ring of fixing plate, and the telescopic block is hinged to the fixing plate.

5. The limiting device for the floating gate according to claim 1, characterized in that: The fastener includes an externally threaded section on the long rod of the L-shaped outer shell, and a matching nut. The long rod of the L-shaped outer shell is inserted into the socket of the floating box gate. The nut, which is screwed onto the externally threaded section, is tightened until it abuts against the outer wall of the floating box gate. The drive end of the guide piston always maintains a distance from the nut. The parts of each telescopic block in the working position that are exposed outside the L-shaped outer shell always maintain a distance from the nut.

6. The limiting device for the floating gate according to claim 1 or 2, characterized in that: The telescopic block is provided in four sets.

7. The limiting device for the floating gate according to claim 1, characterized in that: The short rod of the L-shaped shell is conical in shape and smoothly transitions to the long rod through a rounded transition, with a pointed end.

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