Gate hoisting system

Abstract

The utility model relates to the technical field of hydraulic mechanical equipment, in particular to a gate hoisting system which comprises a grabbing beam and a gate lifting lug, and the grabbing beam comprises a grabbing beam body, an unhooking pin assembly and a hook assembly; the hook assembly comprises a hook body and a hook, the gate lifting lug comprises a gate lifting lug body, an upper guide part and a lower guide part, and a lifting lug hole is formed in the gate lifting lug body; the upper guide part comprises an upper guide inclined surface; the upper guide inclined surface is connected with the inner wall of the gate lifting lug body; the lower guide part comprises a supporting piece and a lower guide slope, the supporting piece is located on the inner side of the gate lifting lug body, one end of the lower guide slope is connected with the supporting piece, and the other end is inserted into the lifting lug hole; and in the downward moving process of the hook, the hook is in contact fit with the upper guide inclined surface or the lower guide inclined surface to drive the hook to rotate in the direction away from the lifting lug hole. By means of the hoisting system, the problem that positioning and guiding cannot be achieved in the hooking and unhooking process can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic machinery and equipment technology, and in particular to a gate hoisting system. Background Technology

[0002] A lifting beam is a type of beam lifting device used to lift multiple gate leaves or sections of gates separately and can automatically hook and unhook them. It can reduce heavy manual operation and replace the lifting rod to lift the gate leaves out of the dam surface or put them into the gate slot.

[0003] In the prior art, a Chinese utility model patent document with publication number CN209114436U and publication date of July 16, 2019 has been proposed. The technical solution disclosed in this patent document is as follows: a rotary mechanical automatic grab beam double lifting point synchronous linkage mechanism, including a pair of bidirectional telescopic linkages coaxially arranged between two lifting shafts of the rotary mechanical automatic grab beam. The middle part of the two bidirectional telescopic linkages is hinged to the upper surface of the rotary mechanical automatic grab beam. The opposing telescopic ends of the two bidirectional telescopic linkages are connected as one unit through a cross shaft universal coupling. Their opposing telescopic ends are respectively hinged to the supports of bidirectional thrust roller bearings horizontally arranged at the upper end of the two lifting shafts. The fixed shaft of the bidirectional thrust roller bearing is vertically downward and coaxially welded and fixed to the lifting shaft.

[0004] In actual use, the above technical solution may encounter the following problems: During the process of automatically grabbing the gate lifting lugs, because the automatic grabbing beam achieves synchronous grabbing of the lifting points on both sides through the synchronous linkage mechanism, when the gate or grabbing beam tilts, it is easy for one hook to be able to grab the gate lifting lug while the other hook cannot. This can cause the gate to fall off the hook during the process of the grabbing beam driving the gate to rise and fall.

[0005] In the prior art, a Chinese invention patent document with publication number CN110054076A and publication date of July 26, 2019 has also been proposed. The technical solution disclosed in this patent document is as follows: a gate hoisting system, comprising: a gate; a grab beam, the grab beam being used to hoist the gate, the grab beam including a grab beam body and a lifting device, the lifting device being connected to the grab beam body and disposed below the grab beam body; a safety mechanism disposed on the grab beam body, and the safety mechanism being used to restrict the movement of the lifting device relative to the gate.

[0006] The above technical solution will have the following problems in actual use: during the hooking and unhooking process, it is impossible to achieve positioning and guidance, resulting in low efficiency and accuracy of hooking and unhooking. Summary of the Invention

[0007] To solve the above-mentioned technical problems, this utility model proposes a gate hoisting system that can effectively solve the problem of inability to achieve positioning and guidance during the hooking and unhooking process.

[0008] This utility model is achieved by adopting the following technical solution:

[0009] A gate lifting system includes a grab beam and a gate lifting lug. The grab beam includes a grab beam body, a release pin assembly, and a hook assembly rotatably mounted on the grab beam body. The hook assembly includes a hook body and a hook located at the lower part of the hook body. The gate lifting lug includes a gate lifting lug body, an upper guide portion, and a lower guide portion. The gate lifting lug body has a lifting lug hole. The upper guide portion includes an upper guide ramp connected to the inner wall of the gate lifting lug body. The lower guide portion includes a support member and a lower guide ramp. The support member is located inside the gate lifting lug body, and one end of the lower guide ramp is connected to the support member, while the other end is inserted into the lifting lug hole. During the downward movement of the hook, the hook contacts and engages with the upper or lower guide ramp, causing the hook to rotate in a direction away from the lifting lug hole.

[0010] The hook is provided with an inclined surface for cooperating with the upper guide slope and the lower guide slope.

[0011] The hook body is also equipped with a positioning block.

[0012] The release pin assembly is located on one side of the hook assembly, and the hook body is provided with a limiting block; the release pin assembly includes a limiting rod and a driving assembly; the driving assembly is used to drive the limiting rod to extend and retract; the limiting rod extends and, through its cooperation with the limiting block, achieves the limiting of the hook assembly; the limiting rod retracts and releases the limiting of the hook assembly.

[0013] The drive assembly includes a pin seat and a spring. An adjusting nut is threaded onto the external part of the pin seat, and the limiting rod is disposed inside the pin seat. A spring is sleeved on the limiting rod, with one end of the spring connected to the limiting rod and the other end connected to the adjusting nut. The adjusting nut rotates and moves, causing the limiting rod to extend and abut against the limiting block, and compressing the spring until the limiting block moves to the corresponding position. The limiting rod and the limiting block cooperate with each other to limit the hook assembly.

[0014] The limiting rod includes a first limiting rod and a second limiting rod. The spring is sleeved on the second limiting rod, with one end of the spring connected to the first limiting rod and the other end connected to the adjusting nut.

[0015] The second limiting rod extends outward through the pin seat and the adjusting nut, and a nut is provided at the outwardly protruding part.

[0016] The gate is an arc-shaped gate; the grab beam also includes a guide mechanism, and the grab beam body includes a straight section and inclined sections located at both ends of the straight section; the hook assembly is set on the straight section; the guide mechanism is arranged on the inclined section and matches the gate slot.

[0017] It also includes a counterweight and two sets of reinforcing frames. The counterweight is located on the water-facing side of the straight section, and the reinforcing frames are located on the back side. The inclined sections are connected to the straight section through the reinforcing frames.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, the structure and position of the upper and lower guide parts ensure the correct position and direction of the hook during hooking and unhooking, guiding the hook's accurate entry and exit, and achieving good positioning and guiding effects. Physical contact provides additional stability, reducing the risk of lifting accidents caused by hook offset or swaying, and reducing wear and damage to the hook assembly and gate lifting lugs caused by collisions. This utility model also solves the problem of requiring multiple hook position adjustments in existing technologies, achieving fast and accurate hooking and unhooking, and facilitating subsequent maintenance.

[0020] This utility model, through the design of the upper and lower guide parts, makes the hook assembly applicable to gate lifting lugs of different sizes and shapes. It is only necessary to adjust the angle and position of the upper and lower guide slopes according to the specific gate lifting lug size.

[0021] 2. The hook has an inclined surface, which works better with the upper and lower guide inclined surfaces.

[0022] 3. The positioning block ensures that the hook assembly is positioned in conjunction with the upper guide during movement, increases the rotation angle of the hook in the limited descent stroke, and prevents the lower part of the hook from touching the lower guide slope, thus avoiding smooth hooking. The edges of the positioning block can be made into rounded corners, reducing damage to the upper guide when it touches it, and also providing a certain degree of protection for the gate.

[0023] 4. The structural design of this unhooking pin assembly is low in cost and easy to maintain.

[0024] 5. When the hook is released, the spring, adjusting nut and limiting rod work together to make the limiting rod abut against the limiting block until the limiting block moves to the corresponding position. The limiting rod and the limiting block work together to limit the hook assembly. Compared with the existing method of using pawl and slot, it is easier to operate, the driving assembly is more stable, and it can effectively prevent loosening or displacement caused by vibration or external force.

[0025] 6. By setting a nut on the outward extension of the second limit rod, the position of the nut can be further controlled and stabilized, which can better control and stabilize the state of the spring.

[0026] 7. Through the structural design of the grab beam body, this utility model is suitable not only for flat gates, but also for arc-shaped gates.

[0027] 8. The counterweight and the two sets of reinforcing frames enhance the structural stability of the grab beam body, meet the static balance requirements along the water flow direction, ensure that the grab beam body can smoothly enter the gate slot and reduce the deflection of the hook when grabbing the gate, and ensure that the grab beam body is in a balanced state.

[0028] 9. This lifting system improves lifting efficiency and accuracy, enhances lifting stability, and reduces wear and damage during hooking and unhooking processes. Attached Figure Description

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein:

[0030] Figure 1 This is a schematic diagram of the gate structure in this utility model;

[0031] Figure 2 This is a schematic diagram of the gate lifting lug in view A of this utility model;

[0032] Figure 3 This is an enlarged structural diagram of region B in this utility model;

[0033] Figure 4 This is a schematic diagram of the hook assembly in this utility model;

[0034] Figure 5 This is a schematic diagram of the grab beam structure in this utility model. Figure 1 ;

[0035] Figure 6 This is a schematic diagram of the grab beam structure in this utility model. Figure 2 ;

[0036] Figure 7 This is a schematic diagram showing the cooperation between the grab beam and the arc-shaped gate in this utility model;

[0037] Figure 8 This is a schematic diagram of the structure of the release pin assembly in front of the hook in this utility model;

[0038] Figure 9 This is a schematic diagram of the structure of the release pin assembly in this utility model during release;

[0039] Figure 10 This is a schematic diagram of the hook-up process in this utility model;

[0040] Figure 11 This is a schematic diagram of the unhooking process in this utility model;

[0041] Marked in the image:

[0042] 1. Grab beam body; 2. Unhooking pin assembly; 3. Hook assembly; 4. Hook body; 5. Hook; 6. Gate lifting lug body; 7. Upper guide part; 8. Lower guide part; 9. Lifting lug hole; 10. Upper guide ramp; 11. Support component; 12. Lower guide ramp; 13. Inclined surface; 14. Positioning block; 15. Limiting block; 16. Pin seat; 17. Spring; 18. Adjusting nut; 19. First limit rod; 20. Second limit rod; 21. Nut; 22. Arc-shaped gate; 23. Guide mechanism; 24. Straight section; 25. Inclined section; 26. Gate slot; 27. Counterweight block; 28. Reinforcing frame; 29. ​​Grab beam lifting lug; 30. Handle. Detailed Implementation

[0043] Example 1

[0044] As a basic embodiment of this utility model, the utility model includes a gate hoisting system, comprising a grab beam and gate lifting lugs disposed on the gate. This embodiment does not limit the shape and size of the gate. The grab beam includes a grab beam body 1, a release pin assembly 2, and a hook assembly 3 rotatably mounted on the grab beam body 1. The hook assembly 3 includes a hook body 4 and a hook 5 located at the lower part of the hook body 4.

[0045] The structure and mutual cooperation of the grab beam body 1, the release pin assembly 2, and the hook assembly 3 can all adopt conventional technical means in the field. For example, the release pin assembly 2 can adopt the technical solution disclosed in Chinese Utility Model Patent Publication No. CN110054076A, published on July 26, 2019: the release pin assembly 2 includes a slot and a pawl, the slot is disposed on the outer periphery of the hook body 4; the pawl is disposed on the grab beam body 1 and is disposed corresponding to the slot, the pawl and the slot cooperate to limit the rotation of the hook assembly 3.

[0046] The gate lifting lug includes a gate lifting lug body 6, an upper guide portion 7, and a lower guide portion 8. The gate lifting lug body 6 has a lifting lug hole 9. The upper guide portion 7 can be an upper guide slope 10, which is connected to the inner wall of the gate lifting lug body 6. The lower guide portion 8 includes a support member 11 and a lower guide slope 12. The support member 11 is located inside the gate lifting lug body 6, and one end of the lower guide slope 12 is connected to the support member 11, while the other end is inserted into the lifting lug hole 9. In this invention, "inner" refers to the direction closer to the central axis of the grab beam body 1.

[0047] As the hook 5 moves downward, it comes into contact with the corresponding upper guide slope 10 and lower guide slope 12, causing the hook 5 to rotate in a direction away from the lifting lug hole 9.

[0048] Example 2

[0049] In a preferred embodiment of this utility model, a gate lifting system is provided, comprising a grab beam and a gate lifting lug. The grab beam includes a grab beam body 1, a release pin assembly 2, and a hook assembly 3 rotatably mounted on the grab beam body 1. The hook assembly 3 includes a hook body 4 and a hook 5 located at the lower part of the hook body 4. The gate lifting lug includes a gate lifting lug body 6, an upper guide portion 7, and a lower guide portion 8. The gate lifting lug body 6 is provided with a lifting lug hole 9. The upper guide portion 7 includes an upper guide slope 10, which is connected to the inner wall of the gate lifting lug body 6 via an upper support member. The upper support member may be plate-shaped, and the inner wall of the upper support member and the inner wall of the gate lifting lug body 6 are located in the same vertical plane. The lower guide portion 8 includes a support member 11 and a lower guide slope 12. The support member 11 is located inside the gate lifting lug body 6, and one end of the lower guide slope 12 is connected to the support member 11, while the other end is inserted into the lifting lug hole 9. As the hook 5 moves downward, it comes into contact with the corresponding upper guide slope 10 or lower guide slope 12, causing the hook 5 to rotate in a direction away from the lifting lug hole 9.

[0050] In order to improve the fit between the hook 5 and the upper guide slope 10 or the lower guide slope 12, the hook 5 is provided with an inclined surface 13 for fitting with the upper guide slope 10 and the lower guide slope 12.

[0051] The release pin assembly 2 is mounted on the grab beam body 1 and located on one side of the hook assembly 3. The hook body 4 has a limiting block 15 protruding towards the release pin assembly 2. The release pin assembly 2 includes a limiting rod and a driving assembly. The driving assembly can be a cylinder, etc. The limiting block 15 may have a limiting hole matching the limiting rod. The limiting hole may be concave. When the hook assembly 3 rotates the hook 5 and the limiting block 15 to the corresponding position, the cylinder drives the limiting rod to extend outward into the limiting hole, completing the limiting of the hook 5. When the limiting of the hook 5 is not required, for example during hooking, the cylinder does not operate, maintaining the initial state of the limiting rod and preventing it from extending outward.

[0052] Example 3

[0053] In another preferred embodiment of this utility model, a gate hoisting system is provided, comprising a grab beam and a gate lifting lug disposed on the gate. The grab beam includes a grab beam body 1, a release pin assembly 2, and a hook assembly 3 rotatably mounted on the grab beam body 1. The hook assembly 3 includes a hook body 4 and a hook 5 located at the lower part of the hook body 4. The gate lifting lug includes a gate lifting lug body 6, an upper guide portion 7, and a lower guide portion 8. The gate lifting lug body 6 is provided with a lifting lug hole 9. The upper guide portion 7 includes an upper guide slope 10, the lowest point of which is connected to the upper surface of the inner wall of the gate lifting lug body 6. The lower guide portion 8 includes a support member 11 and a lower guide slope 12. The support member 11 is located inside the gate lifting lug body 6, and one end of the lower guide slope 12 is connected to the support member 11, while the other end is inserted into the lifting lug hole 9. As the hook 5 moves downward, it comes into contact with the upper guide slope 10 or the lower guide slope 12, causing the hook 5 to rotate in a direction away from the lifting lug hole 9.

[0054] The release pin assembly 2 is mounted on the grab beam body 1 and located on one side of the hook assembly 3. The hook body 4 is provided with a limiting block 15 protruding towards the side of the release pin assembly 2. The release pin assembly 2 includes a limiting rod and a driving assembly. The limiting block 15 is provided with a limiting hole that matches the limiting rod. The limiting hole can be a through hole in the limiting block 15. The driving assembly includes a pin seat 16 and a spring 17. The pin seat 16 is externally threaded with an adjusting nut 18, and the limiting rod is located inside the pin seat 16. The spring 17 is sleeved on the limiting rod. One end of the spring 17 is connected to the limiting rod, and the other end is connected to the adjusting nut 18. When the adjusting nut 18 rotates, it moves relative to the pin seat 16, causing the limiting rod to extend out and abut against the limiting block 15, and compressing the spring 17 until the limiting block 15 moves to the corresponding position. At this time, the limiting rod extends into the limiting hole under the force of the spring 17, thereby limiting the hook assembly (3).

[0055] When the limit switch is not required, simply keep spring 17 in its normal state.

[0056] Example 4

[0057] In another preferred embodiment of this utility model, a gate hoisting system is provided, comprising a grab beam and gate lifting lugs. The grab beam includes a grab beam body 1, a release pin assembly 2, and a hook assembly 3 rotatably mounted on the grab beam body 1. The gate can be a flat gate, and the grab beam body 1 is linear. The hook assembly 3 includes a hook body 4 and a hook 5 located at the lower part of the hook body 4.

[0058] The gate lifting lug includes a gate lifting lug body 6, an upper guide portion 7, and a lower guide portion 8. The gate lifting lug body 6 has a lifting lug hole 9. The upper guide portion 7 includes an upper guide ramp 10, which can be connected to the inner wall of the gate lifting lug body 6 via an upper support member. Specifically, the upper support member can be plate-shaped, with its outer wall fitting against the inner wall of the gate lifting lug body 6, and it has a through hole corresponding to the lifting lug hole 9. The lower guide portion 8 includes a support member 11 and a lower guide ramp 12. The support member 11 is located inside the gate lifting lug body 6, and one end of the lower guide ramp 12 is connected to the support member 11, while the other end is inserted into the through hole and the lifting lug hole 9.

[0059] As the hook 5 moves downward, it contacts and engages with the upper guide slope 10 or the lower guide slope 12, causing the hook 5 to rotate in a direction away from the lifting lug hole 9. Furthermore, the hook 5 is provided with an inclined surface 13 for engaging with the upper guide slope 10 and the lower guide slope 12. The upper guide slope 10, the lower guide slope 12, and the inclined surface 13 have the same inclination angle. To ensure that the hook assembly 3 is positioned in conjunction with the upper guide part 7 during movement, the hook body 4 is also provided with a positioning block 14. Furthermore, the edges of the positioning block 14 can all be rounded.

[0060] The release pin assembly 2 is mounted on the grab beam body 1 and located on one side of the hook assembly 3. The hook body 4 has a limiting block 15 protruding towards the release pin assembly 2. The release pin assembly 2 includes a limiting rod and a driving assembly. The driving assembly includes a pin seat 16 and a spring 17. The pin seat 16 is connected to the grab beam body 1. An adjusting nut 18 is threaded onto the external part of the pin seat 16, and the limiting rod is located inside the pin seat 16. The limiting rod includes a first limiting rod 19 and a second limiting rod 20, whose outer diameters may be the same or different. The second limiting rod 20 extends outward through the pin seat 16 and the adjusting nut 18, and a nut 21 is provided at the outwardly extended portion. The position of the adjusting nut 18 can be fixed by the limiting of the adjusting nut 18 and the nut 21. The spring 17 is sleeved on the second limiting rod 20, with one end connected to the first limiting rod 19 and the other end connected to the adjusting nut 1. When the adjusting nut 18 rotates, it moves relative to the pin seat 16. When the end face of the limiting rod abuts against the limiting block 15, it will further compress the spring 17 until the limiting block 15 rotates with the hook assembly 3 to expose the limiting rod. The limiting rod extends under the action of the spring 17, and the wall of the limiting rod abuts against the wall of the limiting block 15, preventing the hook assembly 3 and the limiting block 15 from rotating in opposite directions.

[0061] Example 5

[0062] In another preferred embodiment of this utility model, a gate lifting system is provided, comprising a grab beam and gate lifting lugs. The grab beam includes a grab beam body 1, a release pin assembly 2, two sets of guide mechanisms 23, two sets of reinforcing frames 28, and a hook assembly 3 rotatably mounted on the grab beam body 1. The hook assembly 3 includes a hook body 4 and a hook 5 located at the lower part of the hook body 4. The shape of the hook 5 can be designed according to the shape of the gate lifting lugs. Specifically, the upper part of the hook body 4 is provided with a mounting hole, and the hook body 4 is rotatably mounted on the grab beam body 1 through a rotating shaft that engages with the mounting hole, thereby allowing the hook assembly 3 to rotate around the rotating shaft.

[0063] Refer to the instruction manual appendix Figure 5 ~Refer to the attached instruction manual Figure 7 In this embodiment, the gate is an arc-shaped gate 22. The grab beam body 1 can be a split type, specifically a three-section structure, including a straight section 24 and inclined sections 25 located at both ends of the straight section 24. For ease of transportation, the sections can be connected by connectors such as bolts, and then connected into a whole during installation. There are two sets of hook assemblies 3, located at both ends of the straight section 24, so that the two sets of hook assemblies 3 do not move together, and the two hook assemblies 3 can act independently during hooking and unhooking operations, hooking and unhooking the gate lifting lugs on both sides of the upper end of the gate respectively. Thus, even when the arc-shaped gate 22 or the grab beam body 1 is tilted, the two gate lifting lugs can still be hooked and unhooked, avoiding the problem of falling off when lifting the arc-shaped gate 22. The straight section 24 is also provided with grab beam lifting lugs 29 for connecting with a mobile hoist. The guide mechanism 23 is arranged on the inclined section 25 and matches the gate slot 26. The guide mechanism 23 can be a grab beam guide wheel.

[0064] Refer to the instruction manual appendix Figure 1 ~Instruction manual included Figure 3 The gate lifting lug includes a gate lifting lug body 6, an upper guide portion 7, and a lower guide portion 8. The gate lifting lug body 6 has a lifting lug hole 9. The upper guide portion 7 includes an upper guide slope 10, the lowest point of which is connected to the inner wall of the gate lifting lug body 6. The lower guide portion 8 includes a support member 11 and a lower guide slope 12. The support member 11 is located inside the gate lifting lug body 6, maintaining a certain distance from it. One end of the lower guide slope 12 is connected to the support member 11, and the other end is inserted into the lifting lug hole 9. Furthermore, the lower guide slope 12 is connected to the inner wall of the lifting lug hole 9, making the structure more stable.

[0065] Furthermore, please refer to the instruction manual appendix. Figure 4The hook 5 is provided with an inclined surface 13 for engaging with the upper guide slope 10 and the lower guide slope 12. To ensure that the hook assembly 3 is positioned in conjunction with the upper guide part 7 during movement, the hook body 4 is also provided with a positioning block 14. The inclination angles of the upper guide slope 10, the lower guide slope 12, and the inclined surface 13 can be the same. The edges of the positioning block 14 can all be rounded. During the downward movement of the hook 5, the hook 5 contacts and engages with the upper guide slope 10 or the lower guide slope 12, causing the hook 5 to rotate in a direction away from the lifting lug hole 9.

[0066] Refer to the instruction manual appendix Figure 8 and refer to the instruction manual appendix Figure 9 The release pin assembly 2 is mounted on the grab beam body 1 and located on one side of the hook assembly 3. The hook body 4 has a limiting block 15 protruding towards the release pin assembly 2. A certain distance can be maintained between the limiting block 15 and the release pin assembly 2. The release pin assembly 2 includes a limiting rod and a driving assembly. The driving assembly includes a pin seat 16 and a spring 17. The pin seat 16 is connected to the grab beam body 1. An adjusting nut 18 is threaded onto the external part of the pin seat 16, and the limiting rod is movably disposed inside the pin seat 16. The limiting rod can be stepped, including a first limiting rod 19 and a second limiting rod 20 fixedly connected. The outer diameter of the first limiting rod 19 is larger than the outer diameter of the second limiting rod 20. The other end of the second limiting rod 20 extends outward through the pin seat 16 and the adjusting nut 18, and a nut 21 is provided at the outwardly extended portion. The spring 17 is sleeved on the second limiting rod 20, with one end abutting against the first limiting rod 19 and the other end abutting against the adjusting nut 18. Under normal conditions, the adjusting nut 18 and nut 21 restrict the position of the adjusting nut 18, fixing it in a suitable initial position so that the spring 17 is in a freely extended state and does not move along the limiting rod. At this time, the end of the first limiting rod 19 is in contact with the limiting block 15 or within the distance range between the limiting block 15 and the release pin assembly 2. When limiting is required, the adjusting nut 18 is rotated, causing it to move relative to the pin seat 16, causing the end face of the first limiting rod 19 to abut against the end face of the limiting block 15, compressing the spring 17. The limiting block 15 rotates with the hook assembly 3 until the first limiting rod 19 is exposed. Under the action of the spring 17, the first limiting rod 19 continues to extend outward. The wall of the first limiting rod 19 abuts against the wall of the limiting block 15 to prevent the hook assembly 3 and the limiting block 15 from rotating in opposite directions.

[0067] To ensure the grab beam body 1 smoothly enters the gate slot 26 and reduces the deflection of the hook 5 when grabbing the arc-shaped gate 22, the grab beam body 1 must be kept in a balanced state. Since the grab beam body 1 is symmetrical, its center of gravity is on the downstream side. A counterweight 27 is arranged at the straight section 24 in the middle of the grab beam body 1 to meet the static balance requirements along the water flow direction. More specifically, the counterweight 27 is located on the upstream side. Furthermore, the reinforcing frame 28 is located on the downstream side, and the inclined section 25 is connected to the straight section 24 via the reinforcing frame 28. The reinforcing frame 28 is L-shaped, with one end connected to the straight section 24 and the other end connected to the inclined section 25, so that the reinforcing frame 28, the inclined section 25, and the straight section 24 form a more stable triangular shape. Furthermore, a first reinforcing rib is provided between the reinforcing frame 28 and the inclined section 25, and a second reinforcing rib is provided between the reinforcing frame 28 and the straight section 24.

[0068] When the grab beam is engaged in hooking operation, the adjusting nut 18 of the release pin assembly 2 needs to be unscrewed to ensure that the spring 17 mounted on the second limiting rod 20 is not subjected to any external force and is in a normal state. This ensures that when the hook assembly 3 rotates to engage hooking, the limiting block 15 moves relative to the release pin assembly 2, and the end face of the first limiting rod 19 is within the distance range between the limiting block 15 and the release pin assembly 2. The first limiting rod 19 will not be subjected to the elastic deformation force of the spring 17 to extend and limit the hook assembly 3, thus ensuring the smooth operation of the hooking process. A handle 30 is provided on the adjusting nut 18 for easy adjustment.

[0069] When the grab beam is unhooked, tighten the adjusting nut 18 of the unhooking pin assembly 2. During the tightening process, the adjusting nut 18 will move relative to the pin seat 16, causing the first limiting rod 19 to gradually abut against the limiting block 15. At the same time, since the two ends of the spring 17 abut against the first limiting rod 19 and the adjusting nut 18 respectively, continued movement will compress the spring 17. When the hook 5 of the hook assembly 3 can be disengaged from the lifting lug hole 9 of the gate lifting lug, the limiting block 15 moves relative to the unhooking pin assembly 2 until the first limiting rod 19 is misaligned with the limiting block 15. The first limiting rod 19 no longer abuts against the limiting block 15. Under the elastic deformation force of the spring 17, the first limiting rod 19 extends out of the pin seat 16, thereby positioning the first limiting rod 19 against the limiting block 15 and preventing the hook assembly 3 from rotating into the lifting lug hole 9 under the action of gravity, thus achieving unhooking of the lifting lug hole 9.

[0070] Example 6

[0071] As another preferred embodiment of the present invention, the present invention includes a method for using a gate hoisting system, which is based on the gate hoisting system in any of the embodiments 1 to 5 above.

[0072] Refer to the instruction manual appendix Figure 10 When hooking, firstly, control the release pin assembly 2 to prevent it from limiting the hook assembly 3. The gate hoist drives the grab beam to move towards the gate. When the hook 5 of the hook assembly 3 contacts the upper guide slope 10, it drives the hook assembly 3 to continue moving downward. Under the action of the upper guide slope 10, the hook assembly 3 rotates, causing it to continue moving downward into the lifting lug hole 9. At the same time, under the action of gravity, the hook assembly 3 rotates in the opposite direction, causing the hook 5 to enter the lifting lug hole 9, thus achieving hooking 5 into the lifting lug hole 9.

[0073] During the hook-up process 5, when the grab beam or the arc gate 22 tilts (as shown in the attached diagram) Figure 5 As shown, the grab beam tilts from left to right. During the descent, the hook assembly 3 on the left side will first contact the gate lifting lug on the left side of the arc gate 22. At the same time, under the action of the upper guide 7, the hook assembly 3 on the left side hooks onto the gate lifting lug on the left side. Since the hook assembly 3 on the left side and the hook assembly 3 on the right side are not linked, the hook assembly 3 on the right side can contact the gate lifting lug on the right side of the arc gate 22 during the continued descent of the grab beam. At the same time, under the action of the upper guide 7, the gate lifting lug on the right side hooks onto the gate lifting lug on the right side.

[0074] Refer to the instruction manual appendix Figure 11 When the hook is released, it drives the grab beam to move towards the gate. When the hook 5 of the hook assembly 3 contacts the lower guide slope 12, the hook assembly 3 continues to move downward. Under the action of the lower guide slope 12, the hook assembly 3 rotates, causing the hook 5 of the hook assembly 3 to exit the lifting lug hole 9. The control of the unhooking pin assembly 2 and the hook assembly 3 to perform a limiting action prevents the hook assembly 3 from rotating into the lifting lug hole 9 under the action of gravity, thus realizing the unhooking of the lifting lug hole 9.

[0075] During the uncoupling process, when the grab beam or the arc gate 22 tilts (as shown in the attached diagram) Figure 5As shown, the grab beam tilts from left to right. During the descent, the hook assembly 3 on the left side will first contact the gate lifting lug on the left side of the arc gate 22. At the same time, under the combined action of the lower guide part 8 and the unhooking pin assembly 2, the hook assembly 3 on the left side will unhook the gate lifting lug on the left side. Since the hook assembly 3 on the left side and the hook assembly 3 on the right side are not linked, the hook assembly 3 on the right side can contact the gate lifting lug on the right side of the arc gate 22 during the continued descent of the grab beam. At the same time, under the combined action of the lower guide part 8 and the unhooking pin assembly 2, the gate lifting lug on the right side will unhook the gate lifting lug on the right side.

[0076] In summary, any other corresponding modifications made by those skilled in the art based on the technical solution and concept of this utility model without creative mental effort after reading this utility model document are all within the scope of protection of this utility model.

Claims

1. A gate lifting system, comprising a grab beam and gate lifting lugs, the grab beam comprising a grab beam body (1), a release pin assembly (2), and a hook assembly (3) rotatably mounted on the grab beam body (1); the hook assembly (3) comprising a hook body (4) and a hook (5) located at the lower part of the hook body (4), characterized in that: The gate lifting lug includes a gate lifting lug body (6), an upper guide part (7), and a lower guide part (8). The gate lifting lug body (6) is provided with a lifting lug hole (9). The upper guide part (7) includes an upper guide slope (10), which is connected to the inner wall of the gate lifting lug body (6). The lower guide part (8) includes a support member (11) and a lower guide slope (12). The support member (11) is located inside the gate lifting lug body (6). One end of the lower guide slope (12) is connected to the support member (11), and the other end is inserted into the lifting lug hole (9). During the downward movement of the hook (5), the hook (5) contacts and engages with the upper guide slope (10) or the lower guide slope (12), causing the hook (5) to rotate in a direction away from the lifting lug hole (9).

2. The gate hoisting system according to claim 1, characterized in that: The hook (5) is provided with an inclined surface (13) for cooperating with the upper guide slope (10) and the lower guide slope (12).

3. The gate hoisting system according to claim 1, characterized in that: The hook body (4) is also provided with a positioning block (14).

4. The gate hoisting system according to claim 1, characterized in that: The release pin assembly (2) is located on one side of the hook assembly (3), and the hook body (4) is provided with a limiting block (15); the release pin assembly (2) includes a limiting rod and a driving assembly; the driving assembly is used to drive the limiting rod to extend and retract; the limiting rod extends and, through mutual cooperation with the limiting block (15), realizes the limiting of the hook assembly (3); the limiting rod retracts and releases the limiting of the hook assembly (3).

5. A gate hoisting system according to claim 4, characterized in that: The drive assembly includes a pin seat (16) and a spring (17). The pin seat (16) is threaded with an adjusting nut (18). The limiting rod is located inside the pin seat (16). The spring (17) is sleeved on the limiting rod. One end of the spring (17) is connected to the limiting rod, and the other end is connected to the adjusting nut (18). The adjusting nut (18) rotates and moves, causing the limiting rod to extend and abut against the limiting block (15), and squeezing the spring (17) until the limiting block (15) moves to the corresponding position. The limiting rod and the limiting block (15) cooperate with each other to realize the limiting of the hook assembly (3).

6. A gate hoisting system according to claim 5, characterized in that: The limiting rod includes a first limiting rod (19) and a second limiting rod (20). The spring (17) is sleeved on the second limiting rod (20). One end of the spring (17) is connected to the first limiting rod (19), and the other end is connected to the adjusting nut (18).

7. A gate hoisting system according to claim 6, characterized in that: The second limiting rod (20) extends outward through the pin seat (16) and the adjusting nut (18), and the outwardly extended part is provided with a nut (21).

8. A gate hoisting system according to any one of claims 1 to 7, characterized in that: The gate is an arc-shaped gate (22); the grab beam also includes a guide mechanism (23), the grab beam body (1) includes a straight section (24) and inclined sections (25) located at both ends of the straight section (24); the hook assembly (3) is set on the straight section (24); the guide mechanism (23) is arranged on the inclined section (25) and matches the gate slot (26).

9. A gate hoisting system according to claim 8, characterized in that: It also includes a counterweight (27) and two sets of reinforcing frames (28). The counterweight (27) is located on the water-facing side of the straight section (24), and the reinforcing frames (28) are located on the back side. The inclined section (25) is connected to the straight section (24) through the reinforcing frames (28).

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