A ship lift vertical lifting lock gate locking system

Abstract

A ship lift vertical lifting lock gate locking system, including work platform one, work platform two, lock gate, work gate slot, winch type hoist, locking device, the winch type hoist is arranged in work platform one, is used for controlling lock gate to lift, drop, lock gate is arranged in work gate slot, is used for blocking upstream and downstream water body, the locking device is arranged in work platform two, is used for locking, unlocking to lock gate in working condition and overhauling state, locking device includes locking beam, locking beam tail end is driven telescopic through locking drive oil cylinder, locking beam first end is equipped with the hook, the hook is supported on the locking block of lock gate in locking state and is limited. A ship lift vertical lifting lock gate locking system provided by the utility model can realize quick and stable hook locking and unhook unlocking of lock gate in working condition and reliable bearing locking in overhauling state.

Description

Technical Field

[0001] This utility model relates to the field of navigation operation of ship lifts, and in particular to a vertical lifting gate locking system for ship lifts. Background Technology

[0002] Ship lifts are crucial facilities in water conservancy projects and navigation engineering, enabling ships to pass quickly through dams. The lock gate, a core component of the ship lift, functions to block upstream and downstream waterways when not in navigation, and to open during navigation to connect the ship-carrying chamber with the waterway, creating a passage for ships to enter and exit. Vertical lifting lock gates are widely used in engineering practice due to their simple structure, lack of underwater hydraulic equipment, and ease of maintenance and repair.

[0003] During the operation of the ship lift, the locking system of the lock gate must meet two core operating conditions: first, working lock during navigation, that is, during the entry and exit of ships from the ship lift chamber, the lock gate must be quickly and reliably locked in a high position to ensure the stability of the gate during navigation; second, the lock gate must be extended from the working gate slot during maintenance to provide stable mechanical support for the lock gate, ensuring maintenance lock during long-term shutdown maintenance conditions and ensuring the safety of maintenance operations.

[0004] Traditional locking methods often employ a hydraulic pin structure. This method requires high alignment accuracy between the pin and the locking hole, and is prone to jamming due to gate deformation and installation errors. During the gate's lifting, locking, unlocking, and lowering phases, this locking method necessitates frequent switching between the gate's hydraulic system and the locking mechanism, resulting in a complex operation and slow response. In actual operation, inaccurate gate positioning often prevents successful locking and unlocking, impacting navigation efficiency. Furthermore, since the gate's position differs between navigation and maintenance states, separate working and maintenance locking devices are typically required, leading to system complexity, large space requirements, and high manufacturing, installation, and maintenance costs. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a vertical lifting gate locking system for a ship lift, which can realize fast and stable hook locking and unhooking of the gate in the working state, as well as reliable support locking in the maintenance state.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A vertical lifting gate locking system for a ship lift includes a working platform 1, a working platform 2, a gate, a working gate slot, a winch-type hoist, and a locking device. The winch-type gate hoist is arranged on the working platform one and is used to control the lifting and lowering of the gate head; the gate head is arranged in the working gate slot and is used to block the upstream and downstream water bodies. The locking device is arranged on the second working platform and is used to lock and unlock the gate in the working state and the maintenance state. The locking device includes a locking beam, the tail end of which is driven to extend and retract by a locking drive cylinder, and a hook is installed at the head end of the locking beam. When the hook is in the locked state, it supports and limits the locking block on the gate.

[0007] The locking device consists of two sets, respectively arranged on both sides of the working platform. The two sets of locking devices lock the left and right ends of the gate respectively.

[0008] The locking beam includes a main beam, with side beams fixedly connected to both sides of the main beam to form an "I"-shaped structure. Each side beam is fixed with an ear plate, and the piston rod end of the locking drive cylinder is connected to the ear plate.

[0009] The locking beam adopts an "I"-shaped structure, which not only increases the overall rigidity of the locking beam, but also increases the anti-overturning moment due to the side beams. This effectively prevents lateral overturning when the locking beam bears the huge weight of the gate body, making the locking action more reliable and stable.

[0010] Multiple sliders are fixed at equal intervals along the length of the lower end face of the side beam. The sliders slide in conjunction with the track, and the track is connected to the concrete embedded parts on the second working platform.

[0011] The purpose of setting up sliders and tracks is to effectively reduce the driving force of the locking drive cylinder, and at the same time prevent the locking beam from becoming skewed due to uneven cylinder output caused by different local friction coefficients during the extension and retraction of the locking beam, thus ensuring that the extension and retraction of the locking beam is more stable and smooth.

[0012] The slider is made of engineering plastic alloy material. This material possesses excellent self-lubricating properties, high wear resistance, high load-bearing capacity, and corrosion resistance, enabling long-life operation with minimal or no maintenance. MGB engineering plastic alloy sliders are commonly used in hydraulic gate systems.

[0013] The hook includes a bracket, one end of which is fixedly connected to the main beam, and the other end of which is rotatably connected to the hook body via a bearing.

[0014] The card body includes a horizontal segment and a vertical segment, with an obtuse angle between the center lines of the horizontal segment and the vertical segment; the end of the horizontal segment is a right angle; when the card body is locked, the right angle side of the end of the horizontal segment is in contact with the vertical surface of the locking block; the other right angle side of the end of the horizontal segment is in contact with the horizontal surface of the locking block and supports the locking block.

[0015] The locking blocks are located at the top of the web plates of the side beams on both sides of the gate. The upper end of the locking block has an outward-facing protrusion, which is a right-angled trapezoidal structure. The upper end of the protrusion is an outward-sloping downward surface, the outer surface of the protrusion is a vertical plane, and the lower surface of the protrusion is a horizontal plane. The outward-sloping downward surface at the upper end of the protrusion mainly serves a guiding function, preventing interference between the locking and locking bodies caused by slight swaying of the gate during movement.

[0016] Multiple sets of cantilever wheels and side guide wheels are installed on both sides and the water-facing side of the gate head, and a water-stopping device is installed on the non-water-facing side; guide frames are installed on both sides of the working gate slot; the gate head moves up and down in the working gate slot along the guide frames.

[0017] This utility model provides a vertical lifting gate locking system for a ship lift, which has the following technical advantages: 1) The system has a high degree of integration. It can meet the needs of both working and maintenance locking through a single locking device. There is no need to set up separate working and maintenance locking devices, which simplifies the system structure, reduces the number of devices and installation space, reduces manufacturing costs and installation and maintenance difficulty, and improves the economic efficiency of the project.

[0018] 2) By setting a hook with a specific geometric shape ("whistle" shape) to cooperate with the stepped locking block on the gate, the gate position can be automatically adapted and reliably locked, which reduces the stringent requirements for the gate's stopping accuracy, effectively compensates for position deviations caused by gate deformation, installation errors, etc., reduces jamming, and improves locking success rate and operational reliability.

[0019] 3) A coordinated control strategy is adopted between the hoist-type gate opener and the locking device. Through graded speed control (high speed V1, medium speed V2, low speed V3) during the lifting and lowering of the gate, coupled with precise deceleration (h1), hooking (h2), disengagement (h3), and maintenance (h4) positions, stable operation of the gate is achieved under various working conditions. Especially during the hooking and unlocking phases, precise low-speed micro-motion avoids impact and vibration on the gate body, improving the safety and stability of equipment operation and extending its service life. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a side view of the layout of this utility model (the gate is located in the working gate slot).

[0021] Figure 2 This is the main view of the layout of this utility model (the gate is located in the working gate slot).

[0022] Figure 3 for Figure 2A magnified view of the gate locking block at point X.

[0023] Figure 4 This is a side view of the locking device in this utility model.

[0024] Figure 5 This is a top view of the locking device in this utility model.

[0025] Figure 6 This is a side view of the hook in this utility model.

[0026] Figure 7 This is a side view of the card body in its free state in this utility model.

[0027] Figure 8 This is a side view of the card body in the working locked state of this utility model.

[0028] Figure 9 This is a top view showing the positional relationship between the gate and the guide frame of the working gate slot in this utility model.

[0029] Figure 10 This is a side view of the position of the gate of this utility model when it is raised to the deceleration position h1.

[0030] Figure 11 This is a front view of the position of the gate of this utility model when it is raised to the deceleration position h1.

[0031] Figure 12 for Figure 11 Detailed diagram showing the positional relationship between the locking device and the locking block at point Y.

[0032] Figure 13 This is the position (side view) of the gate in this utility model when it is raised to the hook position h2.

[0033] Figure 14 This is the position of the gate in the middle of the present invention when it is raised to the hook position h2 (front view).

[0034] Figure 15 for Figure 14 Detailed diagram showing the positional relationship between the locking device and the locking block at point Z.

[0035] Figure 16 This is the side view of the gate in the working locked position of this utility model.

[0036] Figure 17 This is the main view of the gate in the working locked position of this utility model.

[0037] Figure 18 for Figure 17 Detailed diagram showing the positional relationship between the locking device and the locking block at point W.

[0038] Figure 19 This is the position (side view) of the gate of this utility model when it is lifted to the unhooking position h3.

[0039] Figure 20 This is the position of the gate in the middle of this utility model when it is lifted to the unhooking position h3 (front view).

[0040] Figure 21 for Figure 20 Detailed diagram showing the positional relationship between the locking device and the locking block at point V.

[0041] Figure 22 This is the position (side view) of the gate in the middle of this utility model when it is raised to the maintenance position h4.

[0042] Figure 23 This is the position (front view) of the gate in the middle of this utility model when it is raised to the maintenance position h4.

[0043] Figure 24 This is the side view of the gate in the maintenance lock position of this utility model.

[0044] Figure 25 This is the view of the gate in the maintenance lock position (main view) of this utility model.

[0045] Figure 26 This is a schematic diagram of the movement state (locking process) of the hook and locking block in this utility model.

[0046] Figure 27 This is a schematic diagram of the movement state of the hook and locking block in this utility model (unlocking process).

[0047] Figure 28 This is a front view of the locking state of the left and right hooks and the locking block of the gate in this utility model.

[0048] In the diagram: 1. Working platform 1; 2. Working platform 2; 3. Gate head; 4. Working gate slot; 5. Winch-type hoist; 6. Locking device; 301. Cantilever wheel; 302. Side guide wheel; 303. Water-stopping device; 304. Locking block; 401. Guide frame; 601. Locking beam; 602. Slider; 603. Track; 604. Locking drive cylinder; 605. Hook; 605. Main beam; 606. Side beam; 607. Ear plate; 608. Cylinder support; 609. Lock body; 610. Bracket; 611. Transverse section; 612. Longitudinal section; 613. Detailed Implementation

[0049] like Figure 1-2As shown, a vertical lifting lock gate locking system for a ship lift includes a working platform 1, a working platform 2, a lock gate 3, a gate slot 4, a winch-type hoist 5, and a locking device 6. The winch-type hoist 5 is located on the working platform 1 and is used to control the lifting and lowering of the lock gate 3. The locking device 6 is located on the working platform 2 and is used to lock and unlock the lock gate 3 in both working and maintenance states. The lock gate 3 is located within the gate slot 4 and is used to isolate upstream and downstream water bodies.

[0050] like Figure 4-5 As shown, there are two sets of locking devices 6, which are respectively arranged on both sides of the working platform 2. Each set of locking devices 6 includes a locking beam 601, multiple sliders 602, two tracks 603, two locking drive cylinders 604, and a hook 605.

[0051] The locking beam 601 includes a main beam 606 and two side beams 607, which are fixedly connected to form an "I" shape. Two ear plates 608 are arranged on both sides of the side beams 607 respectively.

[0052] The multiple sliders 602 are evenly and uniformly fixedly connected below the two side beams 607 of the locking beam 601. The sliders 602 are made of engineering plastic alloy material, which has excellent self-lubricating, high wear resistance, high load-bearing capacity and corrosion resistance, enabling long-term operation with no or low maintenance. Sliders commonly used in hydraulic gates are made of engineering plastic alloy MGB. The locking beam 601 is supported on the track 603 by the sliders 602.

[0053] The two tracks 603 are arranged on the concrete embedded parts of the working platform 2.

[0054] The two locking drive cylinders 604 are arranged at the tail of the locking beam 601 via cylinder supports 609, and the piston rod ends of the locking drive cylinders 604 are respectively connected to the two ear plates 608. The locking drive cylinders 604 can drive the locking beam 601 to move, and the locking beam 601 moves on the track 603 via the slider 602. When the gate 3 is in a non-maintenance state, the locking drive cylinders 604 are in a retracted state; when the gate 3 is in a maintenance state, the locking drive cylinders 604 are in an extended state.

[0055] like Figure 6-8 As shown, the latch 605 includes a latch body 610 and a bracket 611. The latch body 610 is whistle-shaped and includes a transverse section 612 and a longitudinal section 613. The transverse section 612 and the longitudinal section 613 are connected by an arc to form a bent shape, with their center lines forming a 135° angle. The end of the transverse section 612 is a right angle. The bracket 611 is triangular and is arranged in the middle of the locking beam 601 and fixedly connected to the main beam 606. The latch body 610 and the bracket 611 are movably connected by a bearing assembly, allowing the latch body 610 to rotate on the bracket 611 along the center line of the bearing assembly.

[0056] like Figure 7 As shown, in the free state, the center lines of the transverse segment 612 and the longitudinal segment 613 make angles of 25° and 20° with the horizontal direction, respectively, and the outer ends of the transverse segment 612 and the longitudinal segment 613 both point downwards.

[0057] like Figure 8 As shown, when locked, the center line of the horizontal segment 612 forms a 45° angle with the horizontal direction. One side of the right angle at the end of the horizontal segment 612 is vertical, and the other side is horizontal. The right angle at the end of the horizontal segment 612 can completely fit with the lower right angle surface of the locking block 304. The center line of the vertical segment 613 is vertical.

[0058] like Figure 28 As shown, setting the end of the transverse section 612 at a right angle is key to achieving reliable locking: during operation, the right-angled horizontal edge forms surface contact with the lower bottom surface of the protrusion of the locking block 304, bearing the vertical load; the right-angled vertical edge is tightly fitted with the vertical surface of the locking block 304, providing rigid horizontal restraint (limiting the rotation of the hook 605). The tight fit between the right angle at the end of the transverse section 612 and the included angle of the locking block 304 simultaneously forms a geometric interlock, providing stable load-bearing capacity and anti-slip capability.

[0059] The card body 610 is designed to have a certain self-adjusting capability through a rotatable bearing connection, which can offset the positional misalignment caused by gate operation deviation, gate deformation, installation error, etc., and ensure that the end of the transverse section 612 of the card body 610 is always precisely and tightly fitted with the right angle surface of the locking body 304, thus ensuring the reliability of locking.

[0060] The center lines of the transverse section 612 and the longitudinal section 613 form a 135° angle, which ensures that the card body is in the optimal stress state when locked.

[0061] like Figure 3 , Figure 9 As shown, multiple sets of cantilever wheels 301 and side guide wheels 302 are installed on both sides and the water-facing side of the gate 3, while a water-stopping device 303 is installed on the non-water-facing side. Two locking blocks 304 are fixedly connected to the top of the web plate of the side beams 607 on both sides of the gate 3. The locking blocks 304 are stepped with a right angle. The center line of the locking blocks 304 coincides with the vertical center line of the gate body 3. When locked, the locking blocks 304 and the end of the transverse section 612 of the locking body 610 are kept in contact.

[0062] like Figure 2 As shown, guide frames 401 are installed on both sides of the working gate slot 4. The gate 3 is operated by a winch-type hoist 5 and is supported by cantilever wheels 301 and side guide wheels 302, moving up and down along the guide frames 401 within the working gate slot 4.

[0063] A method for locking the vertical lifting gate of a ship lift includes the following steps: S1: As Figures 1-2 As shown, the gate 3 is initially located in the working gate slot 4. When the ship carrier and the gate head are in a docking state, before the ship enters or exits the ship carrier, the gate 3 is first quickly lifted by the high-speed V1 operation of the winch-type hoist 5.

[0064] S2: As Figures 10-12 As shown, when the gate 3 is raised to the deceleration position h1, the hoisting speed of the hoist 5 switches from high speed V1 to medium speed V2; Figures 13-15 As shown, the operating gate 3 continues to lift until it reaches the hook position h2, at which point the winch hoist 5 stops operating.

[0065] S3: As Figures 16-18 As shown, the winch-type gate hoist 5 then operates the gate head gate 3 at a low speed V3 to slowly descend until the locking blocks 304 on both sides of the gate head gate 3 are in contact with the end of the transverse section 612 of the locking body 610, the gate head gate 3 is locked, the winch-type gate hoist 5 stops operating, and the ship enters and exits the ship carrier.

[0066] In S1-S3, during the process of the gate 3 being raised from the bottom of the working gate slot 4 to the upper locking position, the state changes of the hook 605 and the locking block 304 are as follows: Figure 26 As shown.

[0067] S4: As Figures 19-21 As shown, when the ship has finished entering and exiting the ship-carrying compartment and the ship-carrying compartment is disconnected from the lock head, the winch-type hoist 5 first operates the lock head gate 3 at a low speed V3 to slowly lift it to the unhooking position h3, and then the winch-type hoist 5 stops operating.

[0068] S5: Subsequently, the hoist 5 operates the gate head 3 at a medium speed V2 to descend. When the gate head 3 descends to the deceleration position h1, the descent speed of the hoist 5 switches from medium speed V2 to high speed V1, and the gate head 3 descends rapidly until the gate head 3 descends to the initial position in the working gate slot 4, at which point the hoist 5 stops operating.

[0069] In S4-S5, during the process of the gate 3 moving from being locked at the top to descending to the bottom of the working gate slot 4, the state changes of the hook 605 and the locking block 304 are as follows: Figure 27 As shown.

[0070] S6: As Figures 22-23 As shown, when the gate 3 needs maintenance, the gate 3 is quickly lifted to the maintenance position h4 by the high-speed operation of the winch hoist 5 using V1, and the winch hoist 5 stops running.

[0071] S7: As Figures 24-25As shown, the locking drive cylinder 604 then extends, driving the locking beam 601 to the bottom of the gate 3. The winch hoist 5 operates the gate 3 at a low speed V3 to slowly lower it until the gate 3 lands on the locking beam 601, at which point the winch hoist 5 stops operating.

[0072] S8: After the gate 3 is inspected and repaired, the gate 3 is slowly raised to the inspection position h4 by operating the winch hoist 5 at low speed V3. The winch hoist 5 stops running and the locking drive cylinder 604 retracts.

[0073] S9: Then the hoist 5 operates the gate head 3 at high speed V1 to descend rapidly until the gate head 3 descends to the initial position in the working gate slot 4, at which point the hoist 5 stops running.

Claims

1. A vertical lifting gate locking system for a ship lift, characterized in that: Includes working platform one (1), working platform two (2), gate head (3), working gate slot (4), winch hoist (5), and locking device (6); The winch-type gate hoist (5) is arranged on the working platform (1) and is used to control the lifting and lowering of the gate head gate (3); the gate head gate (3) is arranged in the working gate slot (4) and is used to block the upstream and downstream water bodies; The locking device (6) is arranged on the second working platform (2) and is used to lock and unlock the gate (3) in the working state and the maintenance state. The locking device (6) includes a locking beam (601), the tail end of which is driven to extend and retract by a locking drive cylinder (604), and the head end of the locking beam (601) is equipped with a hook (605), which supports and limits the locking block (304) on the gate (3) when it is locked.

2. The vertical lifting gate locking system for a ship lift according to claim 1, characterized in that: The locking device (6) consists of two sets, which are respectively arranged on both sides of the working platform (2).

3. The vertical lifting gate locking system for a ship lift according to claim 2, characterized in that: The locking beam (601) includes a main beam (606), which is fixedly connected to the side beams (607) on both sides to form an "I" shaped structure. Each side beam (607) is fixed with an ear plate (608), and the piston rod end of the locking drive cylinder (604) is connected to the ear plate (608).

4. The vertical lifting gate locking system for a ship lift according to claim 3, characterized in that: Multiple sliders (602) are fixed at equal intervals along the length direction on the lower end face of the side beam (607). The sliders (602) slide with the track (603), and the track (603) is connected to the concrete embedded parts on the working platform (2).

5. A vertical lifting gate locking system for a ship lift according to claim 4, characterized in that: The slider (602) is made of engineering plastic alloy material.

6. A vertical lifting gate locking system for a ship lift according to claim 4, characterized in that: The hook (605) includes a bracket (611), one end of which is fixedly connected to the main beam (606), and the other end of which is rotatably connected to the card body (610) via a bearing.

7. A vertical lifting gate locking system for a ship lift according to claim 6, characterized in that: The card body (610) includes a horizontal section (612) and a vertical section (613). The center lines of the horizontal section (612) and the vertical section (613) form an obtuse angle. The end of the horizontal section (612) is a right angle. When the card body (610) is locked, the right angle side of the end of the horizontal section (612) is in contact with the vertical surface of the locking block (304) and locked. The other right angle side of the end of the horizontal section (612) is in contact with the horizontal surface of the locking block (304) and supports the locking block (304).

8. A vertical lifting gate locking system for a ship lift according to claim 7, characterized in that: The locking block (304) is arranged on the top of the web of the side beams on both sides of the gate (3). The upper end of the locking block (304) has a protrusion that extends outward. The protrusion is a right-angled trapezoidal structure. The upper end of the protrusion is an outward and downward inclined surface. The outer side of the protrusion is a vertical plane, and the lower bottom surface of the protrusion is a horizontal plane.

9. A vertical lifting gate locking system for a ship lift according to claim 8, characterized in that: Multiple sets of cantilever wheels (301) and side guide wheels (302) are installed on both sides and the water-facing side of the gate (3), and a water-stopping device (303) is installed on the non-water-facing side; guide frames (401) are installed on both sides of the working gate slot (4); the gate (3) moves up and down in the working gate slot (4) along the guide frames (401).

Images