A stop fixing structure of a stop log gate for overhaul of a ship lock
By setting limit brackets and positioning holes on the stacked beam gate unit, combined with limit pins, the problem of positional displacement of the stacked beam gate unit under water level and water pressure fluctuations was solved, thus ensuring the sealing of the stacked beam gate and the smooth progress of maintenance work.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN JIALINGJIANG TONGZIHAO HANGDIAN DEV CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-03
AI Technical Summary
The existing stacked gate units are prone to positional displacement under fluctuations in water level and pressure, leading to water leakage at the sealing contact surface and affecting the maintenance of the lock.
A horizontal and vertical limiting device is installed at the connection position of the stacked beam gate unit. Through the combination of limiting brackets, positioning holes and positioning pins, the stacked beam gate unit is ensured not to shift its position when the water level and water pressure fluctuate, thus achieving complete sealing.
It effectively prevents the stacked gate units from shifting position under water level and pressure fluctuations, ensuring sealing and guaranteeing the smooth progress of lock maintenance work.
Smart Images
Figure CN224451536U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stacked beam gates, specifically to a stacked beam gate limiting and fixing structure for the maintenance of ship locks. Background Technology
[0002] A stacked beam gate is a structure used to temporarily block water during the maintenance of a lock. It consists of multiple stacked beam gate units, each with a hollow interior. The upstream facade of each stacked beam gate unit is equipped with an inlet valve and a drain valve, which allow the stacked beam gate unit to float and sink in the water. Each individual stacked gate is approximately 16.8 meters long and is normally placed on land. When the lock needs maintenance, a crane lifts each stacked gate individually and places them into the gate slot to form a stacked gate. The lock chamber between the stacked gate and the lock is then pumped dry, allowing maintenance workers to inspect the lock from the emptied chamber. However, the existing stacked gates rely on their side facades fitting into the gate slot to create a limiting mechanism. Due to the large gaps between the side facades and the gate slot, each stacked gate has a certain amount of displacement in both the horizontal and vertical directions. During the drainage process, the stacked gates are affected by fluctuations in water level and pressure, causing the connection positions between the stacked gates to shift. This leads to increased leakage at the sealing surfaces, making it impossible for maintenance workers to carry out lock maintenance. Summary of the Invention
[0003] To address the aforementioned problems, this utility model provides a limiting and fixing structure for stacked beam gates used in the maintenance of ship locks. By setting horizontal and vertical limiting devices at the connection points of each stacked beam gate unit, the stacked beam gate units will not shift in position when subjected to fluctuations in water level and pressure, ensuring the integrity of the seal at the connection points of each stacked beam gate unit and preventing large amounts of water leakage. This allows ship lock maintenance personnel to carry out maintenance work smoothly.
[0004] The technical solution of this utility model is as follows: a limiting and fixing structure for a stacked beam gate used for the maintenance of a ship lock, comprising multiple stacked beam gate units. Each stacked beam gate unit is a hollow structure composed of an upstream facade, a downstream facade, two side facades, a top surface, and a bottom surface. The upstream facade is provided with an inlet valve and a drain valve. The upstream facade of each stacked beam gate unit is provided with multiple sets of fixing brackets for the vertical direction of the stacked beam gate unit. Each set of fixing brackets includes upper and lower fixing brackets. Both the upper and lower fixing brackets of each set are provided with through holes for inserting bolts. Limiting brackets are provided at the upper end of both the upstream and downstream facades. The limiting brackets extend beyond the top surface. The number, position, and size of the limiting brackets on the upstream facade and the limiting brackets on the downstream facade are the same. Positioning holes are provided at both ends of the top surface of each stacked beam gate unit. Positioning pins are provided on the bottom surface of each stacked beam gate unit at positions corresponding to the positioning holes.
[0005] The upstream and downstream facades of the stacked beam gate unit are each provided with at least two lifting lugs.
[0006] The limiting bracket has a thickness of at least 25mm, a length of at least 200mm, and a width of 80-100mm.
[0007] The portion of the limiting bracket extending beyond the top surface is provided with a guide slope, the lowest edge of which is higher than the top surface.
[0008] The inclination angle of the guide ramp is 30° to 45°.
[0009] The front end of the positioning pin is provided with a guide cone surface.
[0010] The clearance between the positioning pin and the positioning hole is 1-2 mm.
[0011] The advantages of this utility model are:
[0012] 1. This utility model provides limiting holes at both ends of the top surface of the stacked beam door unit and limiting pins at both ends of the bottom surface. By combining the limiting holes on the top surface of the lower stacked beam door unit with the limiting pins on the bottom surface of the upper stacked beam door unit, the stacked beam door unit is positioned and horizontally limited.
[0013] 2. This utility model sets multiple limiting brackets at corresponding positions on the upstream and downstream facades of the stacked beam gate unit, thereby forming a horizontal limit on the stacked beam gate unit.
[0014] 3. This utility model fixes the stacked beam door unit vertically by setting multiple sets of fixed brackets on the upstream facade of the stacked beam door unit, and by passing bolts through the through holes of the upper fixed bracket of the lower stacked beam door unit and the lower fixed bracket of the upper stacked beam door unit, and tightening them with nuts. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of the stacked beam door unit of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of two overlapping beam door units of this utility model. Detailed Implementation
[0017] See Figure 1 and Figure 2A limiting and fixing structure for a stacked beam gate used for the maintenance of a ship lock includes multiple stacked beam gate units 1. Each stacked beam gate unit 1 is a hollow structure consisting of an upstream facade 2, a downstream facade, two side facades, a top surface 3, and a bottom surface. The upstream facade 2 is provided with an inlet valve 23 and a drain valve 24. The upstream facade 2 and the downstream facade of each stacked beam gate unit 1 are each provided with at least two lifting lugs 22 for the installation and fixing of lifting equipment to the stacked beam gate unit 1, so as to facilitate the lifting equipment to lift and lower the stacked beam gate unit 1. The upstream facade 2 of the stacked beam door unit 1 is provided with multiple sets of fixed supports for the vertical direction of the stacked beam door unit. Each set of fixed supports includes upper and lower fixed supports. The upper fixed support 25 and the lower fixed support 26 of each set are provided with through holes 21 for inserting bolts 6. Limiting supports 4 are provided at the upper end of both the upstream facade 2 and the downstream facade. The limiting supports 4 extend out of the top surface 3. The number, position and size of the limiting supports 4 on the upstream facade 2 and the limiting supports 4 on the downstream facade are the same. The limiting supports 4 are at least 25mm thick, at least 200mm long, and 80-100mm wide to ensure the strength of the limiting supports 4 and prevent them from being too weak when horizontally limiting, which could lead to bending deformation or even breakage, thus causing the limiting failure. In this embodiment, the limiting supports 4 are 25mm thick, 200mm long and 80mm wide. The portion of the limiting bracket 4 extending beyond the top surface 3 is provided with a guide slope 41. The lowest edge of the guide slope 41 is higher than the top surface 3. By providing the guide slope 41 on the upper end face of the limiting bracket 4, the upper stacked beam door unit can be guided when it falls, facilitating the positioning of the stacked beam door unit. Since the lowest edge of the guide slope 41 is higher than the top surface 3, the limiting bracket between the vertical height of the guide slope 41 and the top surface 3 is a straight surface, which facilitates the horizontal limiting of the upper stacked beam door unit by the limiting bracket 4. The inclination angle of the guide slope 41 is 30° to 45°. If the inclination angle of the guide slope 41 is less than 30°, the slope is too gentle and not conducive to guidance. If the inclination angle of the guide slope 41 is greater than 45°, the upper stacked beam door unit is prone to colliding with the limiting bracket 4, causing the limiting bracket 4 to be damaged. The top surface 3 of the stacked beam door unit 1 is provided with positioning holes 31 at both ends. The bottom surface of the stacked beam door unit 1 is provided with positioning pins 5 corresponding to the positioning holes 31. The front end of the positioning pin 5 is provided with a guide cone surface 51. The fitting clearance between the positioning pin 5 and the positioning hole 31 is 1-2mm to facilitate the insertion of the positioning pin 5 into the positioning hole 31. In this embodiment, all the fixing brackets, limiting brackets 4, positioning holes 31, and positioning pins 5 are fixed to the stacked beam door unit 1 by welding.
[0018] The usage process of this utility model is as follows: The lifting equipment lifts the first stacked beam gate unit, forms a limit in the gate slot, and places it on the water surface. Water is poured into the first stacked beam gate unit through the water inlet valve, making it semi-floating on the water surface. Then, the second stacked beam gate unit is lifted, forms a limit in the gate slot, and is placed on the first stacked beam gate. Guided by the guide slope of the limit bracket of the first stacked beam gate unit, the positioning pin on the bottom surface of the second stacked beam gate unit is inserted into the positioning hole on the top surface of the first stacked beam gate unit to form a positioning. At the same time, the limit bracket and positioning hole on the first stacked beam gate unit form a horizontal limit for the second stacked beam gate unit. Bolts are inserted into the through holes of the lower fixed bracket of the second stacked beam gate unit and the upper fixed bracket of the first stacked beam gate unit, and tightened with nuts to achieve vertical limit between the first and second stacked beam gate units. Similarly, the third stacked beam gate unit can be stacked on the second stacked beam gate unit, and so on, stacking all the stacked beam gates to form a stacked beam gate.
[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A stop structure for the stop gate of a ship lock, comprising a plurality of stop gate units (1), the stop gate unit (1) being an internally hollow structure composed of an upstream facade (2), a downstream facade, two side facades, a top surface (3) and a bottom surface, the upstream facade (2) being provided with a water inlet valve (23) and a water discharge valve (24), characterized in that: The upstream facade (2) of the stacked beam door unit (1) is provided with multiple sets of fixed brackets for the vertical direction of the stacked beam door unit. Each set of fixed brackets includes upper and lower fixed brackets. The upper fixed bracket (25) and the lower fixed bracket (26) of each set are provided with through holes (21) for inserting bolts (6). The upper end of the upstream facade (2) and the downstream facade are provided with limiting brackets (4). Each limiting bracket (4) extends out of the top surface (3). The number, position and size of the limiting brackets (4) on the upstream facade (2) and the limiting brackets (4) on the downstream facade are the same. The top surface (3) of the stacked beam door unit (1) is provided with positioning holes (31) at both ends. The bottom surface of the stacked beam door unit (1) is provided with positioning pins (5) at the positions corresponding to the positioning holes (31).
2. The stopper fixing structure for the stoplog gate of the ship lock according to claim 1, characterized in that: The upstream facade (2) and downstream facade of the stacked beam gate unit (1) are respectively provided with at least two lifting lugs (22).
3. The stopper fixing structure for the stoplog gate of the ship lock according to claim 1, characterized in that: The limiting bracket (4) has a thickness of at least 25 mm, a length of at least 200 mm, and a width of 80-100 mm.
4. The stacked beam gate limiting and fixing structure for repairing a ship lock according to claim 1, characterized in that: The portion of the limiting bracket (4) extending out of the top surface (3) is provided with a guide slope (41), the lowest edge of which is higher than the top surface (3).
5. The stopper fixing structure for the stoplog gate of the ship lock according to claim 4, characterized in that: The inclination angle of the guide slope (41) is 30° to 45°.
6. The stopper fixing structure for the stoplog gate of the ship lock according to claim 1, characterized in that: The front end of the positioning pin (5) is provided with a guide cone surface (51).
7. The stopper fixing structure for the stoplog gate of the ship lock according to claim 1, characterized in that: The clearance between the positioning pin (5) and the positioning hole (31) is 1-2 mm.