Gate hoisting system and using method thereof

Abstract

The invention relates to the technical field of hydraulic mechanical equipment, in particular to a gate hoisting system and a using method thereof.The hoisting system 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 and the using method thereof, the problem that positioning and guiding cannot be achieved in the hooking and unhooking process can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic machinery and equipment, and in particular to a gate hoisting system and a use method thereof. Background Art

[0002] Grab beam refers to a beam-type lifting device used to lift multiple or multiple gate leaves separately and can automatically hook and unhook. It can reduce heavy manual operations 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 July 16, 2019 is proposed. The technical solution disclosed in the patent document is as follows: a rotary mechanical automatic grab beam double-hanging point synchronous connecting rod mechanism, comprising a pair of bidirectional telescopic connecting rods coaxially arranged between two hanging shafts of the rotary mechanical automatic grab beam, the middle parts of the two bidirectional telescopic connecting rods are hinged to the upper surface of the rotary mechanical automatic grab beam, the opposite telescopic ends of the two bidirectional telescopic connecting rods are connected as a whole through a cross-axis universal coupling, and the back-facing telescopic ends are respectively hinged to the supports of the bidirectional thrust roller bearings horizontally arranged at the upper ends of the two hanging shafts, and the fixed shafts of the bidirectional thrust roller bearings are vertically downward and coaxially welded and fixed to the hanging shafts.

[0004] During actual use of the above technical solution, the following problems may arise: when the automatic grab beam is hooking and detaching the gate lifting ear, since the automatic grab beam realizes the synchronous grabbing of the lifting points on both sides by setting a synchronous connecting rod mechanism, when the gate or the grab beam is tilted, it is easy for the hooks on both sides working synchronously to have one hook that can hook onto the gate lifting ear while the other hook cannot, resulting in the gate falling off the hook during the process of the grab 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 July 26, 2019 has also been proposed. The technical solution disclosed in the patent document is as follows: a gate lifting system, comprising: a gate; a grab beam, the grab beam is used to lift the gate, the grab beam comprises a grab beam body and a lifting device, the lifting device is connected to the grab beam body and is arranged below the grab beam body; a safety mechanism is arranged on the grab beam body, and the safety mechanism is used to limit the movement of the lifting device relative to the gate.

[0006] The above technical solution may have the following problems during actual use: during the hooking and unhooking process, positioning and guidance cannot be achieved, resulting in low efficiency and accuracy of hooking and unhooking. Summary of the invention

[0007] In order to solve the above technical problems, the present invention proposes a gate hoisting system and a method of using the same, which can effectively solve the problem that positioning and guiding cannot be achieved during the hooking and unhooking process.

[0008] The present invention is achieved by adopting the following technical solutions: A gate lifting system comprises a grab beam and a gate lifting ear, wherein the grab beam comprises a grab beam body, a unhooking pin assembly and a hook assembly rotatably mounted on the grab beam body; the hook assembly comprises a hook body and a hook located at the lower part of the hook body, and the gate lifting ear comprises a gate lifting ear body, an upper guide portion and a lower guide portion, and the gate lifting ear body is provided with a lifting ear hole; the upper guide portion comprises an upper guide inclined surface, and the upper guide inclined surface is connected to the inner wall of the gate lifting ear body; the lower guide portion comprises a support member and a lower guide inclined surface, and the support member is located inside the gate lifting ear body, one end of the lower guide inclined surface is connected to the support member, and the other end is inserted into the lifting ear hole; during the downward movement of the hook, the hook contacts and cooperates with the upper guide inclined surface or the lower guide inclined surface, driving the hook to rotate in a direction away from the lifting ear hole.

[0009] The hook is provided with an inclined surface for matching with the upper guiding inclined surface and the lower guiding inclined surface.

[0010] A positioning block is also provided on the hook body.

[0011] The unhooking pin subassembly is arranged on one side of the hook assembly, and a limit block is provided on the hook body; the unhooking pin subassembly includes a limit rod and a driving assembly; the driving assembly is used to drive the limit rod to extend and retract; the limit rod is extended, and the limit of the hook assembly is achieved through mutual cooperation with the limit block; the limit rod is retracted to release the limit of the hook assembly.

[0012] The driving assembly includes a pin seat and a spring, the external thread of the pin seat is matched with an adjusting nut, and the limit rod is arranged inside the pin seat; a spring is sleeved on the limit rod, one end of the spring is connected to the limit rod, and the other end is connected to the adjusting nut; the adjusting nut rotates and moves, driving the limit rod to extend and abut against the limit block, and squeezes the spring until the limit block moves to the corresponding position, and the limit rod and the limit block cooperate with each other to realize the limiting of the hook assembly.

[0013] The limiting rod comprises a first limiting rod and a second limiting rod, the spring is sleeved on the second limiting rod, one end of the spring is connected to the first limiting rod, and the other end is connected to the adjusting nut.

[0014] The second limiting rod extends outwardly after passing through the pin seat and the adjusting nut, and a nut is provided at the portion extending outwardly.

[0015] 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 respectively located at both ends of the straight section; the hook assembly is arranged on the straight section; the guide mechanism is arranged in the inclined section and matches the gate groove.

[0016] It also includes a counterweight block and two sets of reinforcement frames. The counterweight block is arranged on the water-facing side of the straight section, and the reinforcement frame is arranged on the water-receiving side. The inclined sections are connected to the straight sections through the reinforcement frames.

[0017] A method for using a gate hoisting system, when hooking, controlling a decoupling pin assembly not to limit the hook assembly, driving the grab beam to move toward the gate, and when the hook of the hook assembly contacts an upper guide slope, driving the hook assembly to continue to move downward, and the hook assembly rotates under the action of the upper guide slope, so that the hook assembly continues to move downward into a lifting ear hole, and at the same time, under the action of gravity, the hook assembly rotates in the opposite direction, so that the hook enters the lifting ear hole, and the hook of the lifting ear hole is realized; When unhooking, the grab beam is driven to move toward the gate. When the hook of the hook assembly contacts the lower guide slope, the hook assembly continues to move downward. Under the action of the lower guide slope, the hook assembly rotates, so that the hook of the hook assembly withdraws from the lifting ear hole, and the unhooking pin assembly and the hook assembly are controlled to have a limiting effect. The hook assembly cannot rotate into the lifting ear hole under the action of gravity, thereby achieving unhooking of the lifting ear hole.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, the structure and position setting of the upper guide part and the lower guide part ensure the correct position and direction of the hook during the hooking and unhooking process, and can guide the hook to enter and exit accurately, so as to achieve good positioning and guiding effects. Physical contact provides additional stability, reduces the risk of hoisting accidents caused by hook offset or shaking, and reduces the wear and damage of the hook assembly and the gate lifting lug caused by collision. The present invention can also solve the problem of the need for multiple adjustments of the hook position in the prior art, achieve fast and accurate hooking and unhooking, and facilitate maintenance in the later stage.

[0019] The present invention adopts the design of the upper guide part and the lower guide part so that the hook assembly can be applied to gate lifting ears of different sizes and shapes, and the angles and positions of the upper guide bevel and the lower guide bevel need only be adjusted according to the specific size of the gate lifting ear.

[0020] 2. The hook is provided with an inclined surface, which cooperates better with the upper guide inclined surface and the lower guide inclined surface.

[0021] 3. The setting of the positioning block can ensure that the hook assembly is positioned in coordination with the upper guide part during movement, and can increase the rotation angle of the hook in a limited descending stroke to prevent the lower part of the hook from touching the lower guide slope and hindering smooth hooking. The edges of the positioning block can be made into rounded corners to reduce damage to the upper guide part when touching it, and also play a certain protective role on the gate.

[0022] 4. The structural design of the unhooking pin subassembly is low in cost and easy to maintain.

[0023] 5. When unhooking, the limit rod and the limit block are counteracted by the cooperation of the spring, the adjusting nut and the limit rod until the limit block moves to the corresponding position. The limit rod and the limit block cooperate with each other to achieve the limitation of the hook assembly. Compared with the existing cooperation method of using the ratchet and the slot, it is easier to operate, the stability of the driving assembly is also stronger, and it can effectively prevent loosening or displacement caused by vibration or external force.

[0024] 6. By arranging a nut at the outwardly extending portion of the second limit rod, the position of the nut can be further controlled and stably adjusted, and the state of the spring can be better controlled and stabilized.

[0025] 7. Through the structural design of the grab beam body, the present invention is not only suitable for flat gates, but also for arc gates.

[0026] 8. The setting of the counterweight block and two sets of reinforcement frames can 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 smoothly enters the gate slot and reduces the deflection of the hook when grabbing the gate, and ensure that the grab beam body is in a balanced state.

[0027] 9. Through this lifting system, the lifting efficiency and accuracy can be improved, the lifting stability can be enhanced, and wear and damage can be reduced during the hooking and unhooking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, wherein: Figure 1 It is a structural schematic diagram of the gate in the present invention; Figure 2 It is a schematic diagram of the structure of the gate lifting ear in the A-direction view of the present invention; Figure 3 It is a schematic diagram of the enlarged structure of region B in the present invention; Figure 4 It is a structural schematic diagram of the hook assembly in the present invention; Figure 5 The structure of the grab beam in the present invention is schematically shown Figure 1 ; Figure 6The structure of the grab beam in the present invention is schematically shown Figure 2 ; Figure 7 It is a schematic diagram of the cooperation between the grab beam and the arc gate in the present invention; Figure 8 It is a schematic structural diagram of the unhooking pin assembly before hooking in the present invention; Fig. 9 It is a structural schematic diagram of the unhooking pin subassembly in the present invention during unhooking; Fig.10 It is a schematic diagram of the process of hooking in the present invention; Fig.11 It is a schematic diagram of the process of decoupling in the present invention; Markings in the figure: 1. Grab beam body, 2. Unhooking pin assembly, 3. Hook assembly, 4. Hook body, 5. Hook, 6. Gate lifting ear body, 7. Upper guide part, 8. Lower guide part, 9. Lifting ear hole, 10. Upper guide slope, 11. Support, 12. Lower guide slope, 13. Inclined surface, 14. Positioning block, 15. Limit block, 16. Pin seat, 17. Spring, 18. Adjusting nut, 19. First limit rod, 20. Second limit rod, 21. Nut, 22. Arc gate, 23. Guide mechanism, 24. Straight section, 25. Inclined section, 26. Gate slot, 27. Counterweight, 28. Strengthening frame, 29. Grab beam lifting ear, 30. Handle. DETAILED DESCRIPTION

[0029] Example 1 As a basic embodiment of the present invention, the present invention includes a gate hoisting system, including a grab beam and a gate hoisting lug arranged 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 decoupling 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.

[0030] The structures and mutual cooperation relationship of the grab beam body 1, the unhooking pin assembly 2 and the hook assembly 3 can adopt conventional technical means in the art. For example, the unhooking pin assembly 2 can adopt the technical solution disclosed in the Chinese invention patent with publication number CN110054076A and publication date July 26, 2019: the unhooking pin assembly 2 includes a slot and a pawl, the slot is arranged on the outer periphery of the hook body 4; the pawl is arranged on the grab beam body 1 and corresponds to the slot, and the pawl cooperates with the slot to limit the rotation of the hook assembly 3.

[0031] The gate lifting ear includes a gate lifting ear body 6, an upper guide portion 7 and a lower guide portion 8. The gate lifting ear body 6 is provided with a lifting ear hole 9. The upper guide portion 7 can be an upper guide slope 10, and the upper guide slope 10 is connected to the inner wall of the gate lifting ear body 6. The lower guide portion 8 includes a support member 11 and a lower guide slope 12, the support member 11 is located on the inner side of the gate lifting ear 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 ear hole 9. Among them, the inner in the present invention refers to the direction close to the side of the central axis of the grab beam body 1.

[0032] During the downward movement of the hook 5 , the hook 5 contacts and cooperates with the corresponding upper guide slope 10 and lower guide slope 12 , driving the hook 5 to rotate in a direction away from the lifting ear hole 9 .

[0033] Example 2 As a preferred embodiment of the present invention, the present invention includes a gate hoisting system, including a grab beam and a gate lifting ear. The grab beam includes a grab beam body 1, a decoupling 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 ear includes a gate lifting ear body 6, an upper guide portion 7, and a lower guide portion 8. The gate lifting ear body 6 is provided with a lifting ear hole 9. The upper guide portion 7 includes an upper guide slope 10, and the upper guide slope 10 is connected to the inner wall of the gate lifting ear body 6 through an upper support. Among them, the upper support can be in a plate shape, and the inner wall of the upper support and the inner wall of the gate lifting ear 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 ear 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 ear hole 9. During the downward movement of the hook 5 , the hook 5 contacts and cooperates with the corresponding upper guiding inclined surface 10 or lower guiding inclined surface 12 , driving the hook 5 to rotate in a direction away from the lifting ear hole 9 .

[0034] In order to achieve a better matching effect when the hook 5 contacts the upper guide slope 10 or the lower guide slope 12 , the hook 5 is provided with an inclined surface 13 for matching with the upper guide slope 10 and the lower guide slope 12 .

[0035] Wherein, the unhooking pin subassembly 2 is arranged on the grab beam body 1 and is located on one side of the hook assembly 3. The hook body 4 is provided with a limit block 15 protruding toward one side of the unhooking pin subassembly 2. The unhooking pin subassembly 2 includes a limit rod and a driving assembly. The driving assembly can be a cylinder, etc. The limit block 15 can be provided with a limit hole matching the limit rod. Wherein, the limit hole can be in the shape of a concave hole. When the hook assembly 3 drives the hook 5 and the limit block 15 to rotate to the corresponding position, the cylinder drives the limit rod to extend outward into the limit hole to complete the limiting of the hook 5. When the hook 5 does not need to be limited, for example, during the hooking process, the cylinder does not move, maintains the initial state of the limit rod, and prevents the limit rod from extending outward.

[0036] Example 3 As another preferred embodiment of the present invention, the present invention includes a gate hoisting system, including a grab beam and a gate lifting ear arranged on the gate, the grab beam includes a grab beam body 1, a decoupling 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 ear includes a gate lifting ear body 6, an upper guide portion 7 and a lower guide portion 8, and the gate lifting ear body 6 is provided with a lifting ear 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 ear 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 ear 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 ear hole 9. During the downward movement of the hook 5 , the hook 5 contacts and cooperates with the upper guiding inclined surface 10 or the lower guiding inclined surface 12 , driving the hook 5 to rotate in a direction away from the lifting ear hole 9 .

[0037] The unhooking pin assembly 2 is arranged on the grab beam body 1 and is located on one side of the hook assembly 3. The hook body 4 is provided with a stopper 15 protruding toward one side of the unhooking pin assembly 2. The unhooking pin assembly 2 includes a stopper rod and a driving assembly. The stopper block 15 is provided with a stopper hole matching the stopper rod. The stopper hole may be a through hole provided in the stopper block 15. The driving assembly includes a pin seat 16 and a spring 17. The pin seat 16 is externally threaded with an adjustment nut 18. The stopper rod is provided inside the pin seat 16. The stopper rod is sleeved with a spring 17. One end of the spring 17 is connected to the stopper rod and the other end is connected to the adjustment nut 18. The adjustment nut 18 rotates and moves relative to the pin seat 16, driving the stopper rod to extend and abut against the stopper block 15, and compressing the spring 17 until the stopper block 15 moves to a corresponding position. At this time, the stopper rod extends into the stopper hole under the action of the spring 17, thereby achieving the stopper of the hook assembly (3).

[0038] When there is no need to limit the position, just keep the spring 17 in the normal state.

[0039] Example 4 As another preferred embodiment of the present invention, the present invention includes a gate hoisting system, including a grab beam and a gate lifting lug. The grab beam includes a grab beam body 1, a decoupling 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 a straight line. The hook assembly 3 includes a hook body 4 and a hook 5 located at the lower part of the hook body 4.

[0040] The gate lifting ear includes a gate lifting ear body 6, an upper guide portion 7 and a lower guide portion 8. The gate lifting ear body 6 is provided with a lifting ear hole 9. The upper guide portion 7 includes an upper guide slope 10, and the upper guide slope 10 can be connected to the inner wall of the gate lifting ear body 6 through an upper support. Specifically, the upper support can be in a plate shape, the outer wall of the upper support fits the inner wall of the gate lifting ear body 6, and the upper support is provided with a through hole corresponding to the lifting ear hole 9. The lower guide portion 8 includes a support member 11 and a lower guide slope 12, the support member 11 is located on the inner side of the gate lifting ear 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 through hole and the lifting ear hole 9.

[0041] During the downward movement of the hook 5, the hook 5 contacts and cooperates with the upper guide slope 10 or the lower guide slope 12, driving the hook 5 to rotate in a direction away from the ear hole 9. Further, the hook 5 is provided with an inclined surface 13 for cooperating 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. In order to ensure that the hook assembly 3 is positioned in coordination with the upper guide portion 7 during movement, a positioning block 14 is also provided on the hook body 4. Further, the edges of the positioning block 14 can all be made into rounded corners.

[0042] The unhooking pin assembly 2 is arranged on the grab beam body 1 and is located on one side of the hook assembly 3. The hook body 4 is provided with a limit block 15 protruding toward one side of the unhooking pin assembly 2. The unhooking pin assembly 2 includes a limit rod and a driving assembly. The driving assembly includes a pin seat 16 and a spring 17, and the pin seat 16 is connected to the grab beam body 1. The pin seat 16 is threaded with an adjustment nut 18 on the outside, and the limit rod is arranged inside the pin seat 16. The limit rod includes a first limit rod 19 and a second limit rod 20, and the outer diameters of the first limit rod 19 and the second limit rod 20 can be the same or different. The second limit rod 20 extends outward through the pin seat 16 and the adjustment nut 18, and a nut 21 is provided at the outwardly extending portion. The position of the adjustment nut 18 can be fixed by the restriction of the adjustment nut 18 and the nut 21. The spring 17 is sleeved on the second limit rod 20, and one end of the spring 17 is connected to the first limit rod 19, and the other end is connected to the adjustment nut 1. The adjusting nut 18 rotates and moves relative to the pin seat 16. When the end face of the limit rod abuts against the limit block 15, the spring 17 will be further squeezed until the limit block 15 rotates with the hook assembly 3 to expose the limit rod. The limit rod is extended under the action of the spring 17, and the wall of the limit rod abuts against the wall of the limit block 15 to prevent the hook assembly 3 and the limit block 15 from rotating in the opposite direction.

[0043] Example 5 As another preferred embodiment of the present invention, the present invention includes a gate hoisting system, including a grab beam and a gate lifting lug. The grab beam includes a grab beam body 1, a decoupling 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 accordingly according to the shape of the gate lifting lug. Specifically, a mounting hole is provided on the upper part of the hook body 4, and the hook body 4 is rotatably mounted on the grab beam body 1 through a rotating shaft in cooperation with the mounting hole, so that the hook assembly 3 can rotate with the rotating shaft as the center of the circle.

[0044] Refer to the instruction manual Figure 5 ~ Refer to the instruction manual Figure 7In this embodiment, the gate is a curved 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. In order to facilitate transportation, the sections can be connected by connecting pieces such as bolts, and then connected into a whole during installation. The number of the hook components 3 is two groups, which are located at both ends of the straight section 24, so that the two sets of hook components 3 are not linked, so that the two hook components 3 can act separately during the hooking and unhooking work, and the gate ears on both sides of the upper end of the gate can be hooked and unhooked respectively, so that when the curved gate 22 or the grab beam body 1 is tilted, the hooking and unhooking of the two gate ears can also be realized, avoiding the problem of falling off when lifting the curved gate 22. The straight section 24 is also provided with a grab beam ear 29 for connecting to a mobile gate hoist. The guide mechanism 23 is arranged in the inclined section 25 and matches the gate slot 26. Among them, the guide mechanism 23 can be a grab beam guide wheel.

[0045] Refer to the instruction manual Figure 1 ~Instructions attached Figure 3 , the gate lifting ear includes a gate lifting ear body 6, an upper guide portion 7 and a lower guide portion 8. The gate lifting ear body 6 is provided with a lifting ear hole 9. The upper guide portion 7 includes an upper guide slope 10, and the lowest point of the upper guide slope 10 is connected to the inner wall of the gate lifting ear body 6. The lower guide portion 8 includes a support member 11 and a lower guide slope 12, and the support member 11 is located on the inner side of the gate lifting ear body 6 and maintains a certain distance from the gate lifting ear 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 ear hole 9. Furthermore, the lower guide slope 12 is connected to the inner wall of the lifting ear hole 9, making the structure more stable.

[0046] For further information, please refer to the attached manual. Figure 4 , the hook 5 is provided with an inclined surface 13 for cooperating with the upper guiding bevel 10 and the lower guiding bevel 12. In order to ensure that the hook assembly 3 is positioned in coordination with the upper guide portion 7 during movement, a positioning block 14 is also provided on the hook body 4. Among them, the inclination angles of the upper guiding bevel 10, the lower guiding bevel 12 and the inclined surface 13 can be the same. The edges of the positioning block 14 can all be made into rounded corners. During the downward movement of the hook 5, the hook 5 contacts and cooperates with the upper guiding bevel 10 or the lower guiding bevel 12, driving the hook 5 to rotate in a direction away from the lifting ear hole 9.

[0047] Refer to the instruction manual Figure 8 and refer to the instruction manual Fig. 9, the unhooking pin subassembly 2 is arranged on the grab beam body 1 and is located on one side of the hook assembly 3. The hook body 4 is provided with a limit block 15 protruding toward one side of the unhooking pin subassembly 2. A certain distance can be maintained between the limit block 15 and the unhooking pin subassembly 2. The unhooking pin subassembly 2 includes a limit rod and a drive assembly. The drive assembly includes a pin seat 16 and a spring 17, and the pin seat 16 is connected to the grab beam body 1. The external thread of the pin seat 16 is matched with an adjusting nut 18, and the limit rod is movably arranged inside the pin seat 16. The limit rod can be stepped, including a first limit rod 19 and a second limit rod 20 that are fixedly connected. The outer diameter of the first limit rod 19 is larger than the outer diameter of the second limit rod 20. The other end of the second limit rod 20 extends outward through the pin seat 16 and the adjusting nut 18, and a nut 21 is provided at the outwardly extending portion. The spring 17 is sleeved on the second limiting rod 20, one end of the spring 17 abuts against the first limiting rod 19, and the other end abuts against the adjusting nut 18. In a normal state, the position of the adjusting nut 18 can be fixed at an appropriate initial position by adjusting the restrictions of the nut 18 and the nut 21, so that the spring 17 is just in a free extension state and does not move on the limiting rod. At this time, the end of the first limiting rod 19 contacts the limiting block 15 or is located within the spacing range between the limiting block 15 and the unhooking pin assembly 2. When limiting is required, the adjusting nut 18 is rotated to move the adjusting nut 18 relative to the pin seat 16, driving the end face of the first limiting rod 19 to abut against the end face of the limiting block 15, and squeezing the spring 17, so that the spring 17 is in a compressed state. The limit block 15 rotates with the hook assembly 3 until the first limit rod 19 is exposed. Under the action of the spring 17, the first limit rod 19 continues to extend outward, and the wall of the first limit rod 19 abuts against the wall of the limit block 15 to prevent the hook assembly 3 and the limit block 15 from rotating in the opposite direction.

[0048] In order to ensure that the grab beam body 1 smoothly enters the gate groove 26 and reduces the deflection of the hook 5 when grabbing the arc gate 22, it is necessary to ensure that the grab beam body 1 is in a balanced state. Since the grab beam body 1 is bilaterally symmetrical, the center of gravity of the grab beam body 1 is on the downstream side, and a counterweight block 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 block 27 is arranged on the side facing the water. Further, the reinforcement frame 28 is arranged on the side facing away from the water, and the inclined section 25 is also connected to the straight section 24 through the reinforcement frame 28. The reinforcement frame 28 is L-shaped, one end is connected to the straight section 24, and the other end is connected to the inclined section 25, so that the reinforcement frame 28, the inclined section 25 and the straight section 24 are enclosed to form a roughly more stable triangular shape. Furthermore, a first reinforcement rib is also provided between the reinforcement frame 28 and the inclined section 25, and a second reinforcement rib is also provided between the reinforcement frame 28 and the straight section 24.

[0049] When the grab beam is hooked, the adjustment nut 18 of the unhooking pin assembly 2 needs to be unscrewed so that the spring 17 mounted on the second limit rod 20 will not be subjected to any external force and will be in a normal state, that is, when the hook assembly 3 rotates to hook, the limit block 15 moves relative to the unhooking pin assembly 2, and the end face of the first limit rod 19 is located within the spacing range between the limit block 15 and the unhooking pin assembly 2. The first limit rod 19 will not be stretched out by the elastic deformation force of the spring 17 to limit the hook assembly 3, thereby ensuring the smooth progress of the hooking process. In order to facilitate the adjustment of the adjustment nut 18, a handle 30 is provided on the adjustment nut 18.

[0050] When the grab beam is unhooked, the adjusting nut 18 of the unhooking pin assembly 2 is tightened. In the process of tightening the adjusting nut 18, the adjusting nut 18 moves relative to the pin seat 16, driving the first limit rod 19 to gradually abut against the limit block 15. At the same time, since the two ends of the spring 17 abut against the first limit rod 19 and the adjusting nut 18 respectively, the spring 17 is compressed when it continues to move. When the hook 5 of the hook assembly 3 can be withdrawn from the ear hole 9 of the gate ear, the limit block 15 moves relative to the unhooking pin assembly 2 until the first limit rod 19 is misaligned with the limit block 15, and the first limit rod 19 no longer abuts against the limit block 15. Under the elastic deformation force of the spring 17, the first limit rod 19 extends from the pin seat 16, so that the first limit rod 19 can position the limit block 15, preventing the hook assembly 3 from rotating into the ear hole 9 under the action of gravity, and realizing the unhooking of the ear hole 9.

[0051] Example 6 As another preferred embodiment of the present invention, the present invention includes a method for using a gate hoisting system, which is implemented based on the gate hoisting system in any one of the above-mentioned embodiments 1 to 5.

[0052] Refer to the instruction manual Fig.10 When hooking, first control the unhooking pin assembly 2 not to limit the hook assembly 3. The gate hoist drives the grab beam to move toward the gate direction. When the hook 5 of the hook assembly 3 contacts the upper guide slope 10, the hook assembly 3 is driven to continue to move downward. Under the action of the upper guide slope 10, the hook assembly 3 rotates, so that the hook assembly 3 continues to move downward into the lifting ear hole 9. At the same time, under the action of gravity, the hook assembly 3 rotates in the opposite direction, so that the hook 5 enters the lifting ear hole 9, and the hook 5 of the lifting ear hole 9 is hooked.

[0053] During the hooking process 5, when the grab beam or the arc gate 22 is tilted (such as the attached Figure 5As shown, the grab beam tilts from left to right), at this time, the hook assembly 3 on the left side will first contact the gate lifting ear on the left side of the arc gate 22 during the descent process, and at the same time, under the action of the upper guide part 7, the hook assembly 3 on the left side is hooked to the gate lifting ear 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 ear on the right side of the arc gate 22 during the continued descent of the grab beam, and at the same time, under the action of the upper guide part 7, the gate lifting ear on the right side is hooked to the gate lifting ear on the right side.

[0054] Refer to the instruction manual Fig.11 When unhooking, the grab beam is driven to move toward the gate direction. 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, so that the hook 5 of the hook assembly 3 withdraws from the lifting ear hole 9, and the unhooking pin assembly 2 and the hook assembly 3 are controlled to have a limiting effect. The hook assembly 3 cannot rotate into the lifting ear hole 9 under the action of gravity, thereby realizing the unhooking of the lifting ear hole 9.

[0055] During the unhooking process, when the grab beam or the radial gate 22 tilts (such as the attached Figure 5 As shown, the grab beam tilts from left to right), at this time, the hook assembly 3 on the left side will first contact the gate lifting ear on the left side of the arc gate 22 during the descent process, and at the same time, the lower guide part 8 and the unhooking pin assembly 2 jointly achieve the unhooking of the hook assembly 3 on the left side from the gate lifting ear 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 ear on the right side of the arc gate 22 during the continued descent of the grab beam, and at the same time, the lower guide part 8 and the unhooking pin assembly 2 jointly achieve the unhooking of the gate lifting ear on the right side.

[0056] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the present invention without creative mental labor, which all fall within the scope of protection of the present invention.

Claims

1. A gate hoisting system, comprising a grab beam and a gate lifting lug, wherein the grab beam comprises a grab beam body (1), a decoupling pin assembly (2), and a hook assembly (3) rotatably mounted on the grab beam body (1); the hook assembly (3) comprises a hook body (4) and a hook (5) located below the hook body (4), characterized in that: The gate lifting ear comprises a gate lifting ear body (6), an upper guide portion (7) and a lower guide portion (8), wherein the gate lifting ear body (6) is provided with a lifting ear hole (9); the upper guide portion (7) comprises an upper guide inclined surface (10), wherein the upper guide inclined surface (10) is connected to the inner wall of the gate lifting ear body (6); the lower guide portion (8) comprises a support member (11) and a lower guide inclined surface (12), wherein the support member (11) is located on the inner side of the gate lifting ear body (6), wherein one end of the lower guide inclined surface (12) is connected to the support member (11), and the other end is inserted into the lifting ear hole (9); during the downward movement of the hook (5), the hook (5) contacts and cooperates with the upper guide inclined surface (10) or the lower guide inclined surface (12), thereby driving the hook (5) to rotate in a direction away from the lifting ear hole (9).

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

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

4. A gate hoisting system according to claim 1, characterized in that: The unhooking pin assembly (2) is arranged on one side of the hook assembly (3), and a limit block (15) is provided on the hook body (4); the unhooking pin assembly (2) comprises a limit rod and a driving assembly; the driving assembly is used to drive the limit rod to extend and retract; the limit rod extends and cooperates with the limit block (15) to achieve the limit of the hook assembly (3); the limit rod retracts to release the limit of the hook assembly (3).

5. A gate hoisting system according to claim 4, characterized in that: The driving assembly comprises a pin seat (16) and a spring (17); the pin seat (16) is externally threaded with an adjusting nut (18); the limiting rod is arranged inside the pin seat (16); a 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, driving the limiting rod to extend and abut against the limiting block (15), and compressing the spring (17), until the limiting block (15) moves to a corresponding position, and the limiting rod and the limiting block (15) cooperate with each other to achieve the limiting of the hook assembly (3).

6. A gate hoisting system according to claim 5, characterized in that: The limiting rod comprises 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 outwards after passing through the pin seat (16) and the adjusting nut (18), and a nut (21) is provided at the portion extending outwards.

8. A gate hoisting system according to any one of claims 1 to 7, characterized in that: The gate is a curved gate (22); the grab beam further comprises a guide mechanism (23); the grab beam body (1) comprises a straight section (24) and inclined sections (25) respectively located at both ends of the straight section (24); the hook assembly (3) is arranged 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 block (27) and two sets of reinforcement frames (28), wherein the counterweight block (27) is arranged on the water-facing side of the straight section (24), and the reinforcement frame (28) is arranged on the water-receiving side, and the inclined sections (25) are connected to the straight sections (24) via the reinforcement frames (28).

10. The method for using a gate hoisting system according to claim 1, characterized in that: When hooking, the unhooking pin assembly (2) is controlled not to have a limiting effect on the hook assembly (3), driving the grab beam to move toward the gate direction. When the hook (5) of the hook assembly (3) contacts the upper guide inclined surface (10), the hook assembly (3) is driven to continue to move downward. Under the action of the upper guide inclined surface (10), the hook assembly (3) rotates, so that the hook assembly (3) continues to move downward into the lifting ear hole (9). At the same time, under the action of gravity, the hook assembly (3) rotates in the opposite direction, so that the hook (5) enters the lifting ear hole (9), thereby achieving the hook (5) on the lifting ear hole (9); When unhooking, the grab beam is driven to move toward the gate. When the hook (5) of the hook assembly (3) contacts the lower guide inclined surface (12), the hook assembly (3) continues to move downward. Under the action of the lower guide inclined surface (12), the hook assembly (3) rotates, so that the hook (5) of the hook assembly (3) exits the lifting ear hole (9), and the unhooking pin assembly (2) and the hook assembly (3) are controlled to have a limiting effect. The hook assembly (3) cannot rotate into the lifting ear hole (9) under the action of gravity, thereby realizing unhooking of the lifting ear hole (9).

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