Device for disassembling and assembling lock head of spin lock of lifting appliance

Abstract

The utility model belongs to the technical field of port mechanical equipment, and particularly relates to a lifting appliance spin lock head disassembling and assembling device which comprises a top plate, a positioning auxiliary ring, plate teeth and a ratchet wheel connecting sleeve. The top plate is a round iron plate, six M8 through holes are formed in the top plate and distributed in a six-equal-division circumference mode with the circle center of the top plate as the center, the positioning auxiliary ring is welded to the center of the bottom face of the top plate, and the plate teeth penetrate through the through holes of the top plate and are fixed through nuts. The ratchet connecting sleeve is welded to the center of the top face of the top plate. The inner diameter of the positioning auxiliary ring is matched with the size of a positioning notch of the lifting appliance spin lock nut to form clearance fit. When dismounting and mounting operation is carried out, the positioning auxiliary ring can be rapidly and accurately sleeved into the positioning notch of the spin lock nut, accurate positioning is provided for the whole dismounting and mounting process, the phenomena of slipping and dislocation which are prone to occurring when a traditional tool is operated are avoided, and time for finding and adjusting the position of the tool is greatly saved.

Description

Technical Field

[0001] This utility model belongs to the technical field of port machinery and equipment, and specifically relates to a device for disassembling and assembling a spreader twistlock head. Background Technology

[0002] In logistics operations such as cargo transportation and warehousing, as well as in the hoisting of large machinery and equipment, lifting equipment plays a crucial role. Lifting equipment is typically connected and secured to the cargo or object being hoisted via twistlocks to ensure the safety and stability of the hoisting process.

[0003] However, during long-term use, due to frequent loading and unloading operations, significant external impacts, and harsh working environments, the twistlock head and its related components are prone to wear and damage. Once a malfunction occurs, the twistlock head needs timely disassembly, repair, or replacement to ensure the normal operation of the spreader.

[0004] Currently, existing methods for disassembling and assembling spinlock heads on lifting devices have numerous problems. Traditional tools and methods often lack specificity and professionalism, leading to cumbersome and inefficient processes. For example, some tools are difficult to align accurately with the spinlock nut, easily causing slippage and misalignment during operation. This not only increases the workload of operators but also prolongs the disassembly and assembly time, affecting the overall lifting operation's progress. Furthermore, the lack of suitable positioning and auxiliary devices can cause unnecessary damage to the spinlock head and surrounding components during disassembly and assembly, further reducing the lifespan and reliability of the lifting device. Moreover, some existing disassembly and assembly tools have poor versatility, making it difficult to adapt to different specifications and models of spinlock heads on lifting devices, increasing tool procurement costs and management difficulties for enterprises.

[0005] In summary, the existing methods for disassembling and assembling spinlock heads on spreaders can no longer meet the needs of actual operations. There is an urgent need for a device that can efficiently, accurately, and safely disassemble and assemble spinlock heads on spreaders to improve operational efficiency, reduce labor intensity, and decrease equipment wear and costs. Utility Model Content

[0006] The purpose of this utility model is to provide a device for disassembling and assembling a lifting device with a twist lock head, so as to solve the problems existing in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lifting device for disassembling and assembling a spin lock head, comprising a top plate, a positioning auxiliary ring, plate teeth, and a ratchet connecting sleeve; the top plate is a circular iron plate with six M8 through holes, the through holes being distributed in a six-part circle with the center of the top plate as the center; the positioning auxiliary ring is a 25mm high ring formed by cutting a 75mm diameter circular tube, which is welded to the center of the bottom surface of the top plate; the plate teeth pass through the through holes of the top plate and are fixed by nuts; the ratchet connecting sleeve is welded to the center of the top surface of the top plate.

[0008] Preferably, the bolt head of the plate tooth is flush with the top surface of the top plate, and the nut is fixed to the bottom surface of the top plate.

[0009] Preferably, the number of the plate teeth is consistent with the number of positioning notches in the lifting tool's locking nut, forming a one-to-one correspondence.

[0010] Preferably, the outer diameter of the ratchet connecting sleeve is adapted to the interface size of a commonly used ratchet wrench.

[0011] The beneficial effects of this utility model are as follows: The inner diameter of the positioning auxiliary ring matches the positioning notch size of the spin lock nut of the lifting tool, forming a clearance fit. During disassembly and assembly operations, the positioning auxiliary ring can quickly and accurately fit into the positioning notch of the spin lock nut, providing precise positioning for the entire disassembly and assembly process. This avoids the slippage and misalignment that easily occur when operating traditional tools, greatly saving time in finding and adjusting the tool position, allowing operators to quickly begin disassembly and assembly operations, and effectively improving work efficiency. The number of teeth on the plate is consistent with the number of positioning notches on the spin lock nut of the lifting tool, forming a one-to-one correspondence. This design allows the teeth to accurately embed into the positioning notch of the spin lock nut, enabling more effective torque transmission when rotating the ratchet wrench, making the disassembly and installation of the spin lock nut smoother, reducing operational jamming and repeated adjustments caused by poor tool-nut fit, and further improving disassembly and assembly efficiency. Attached Figure Description

[0012] Figure 1 This is the front view of this utility model;

[0013] Figure 2 This is the left view of this utility model;

[0014] Figure 3 This is the right view of this utility model. Detailed Implementation

[0015] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0019] like Figure 1-3 As shown, an emergency unlocking device for a spreader side lock is used when the spreader's twist lock head needs to be disassembled or assembled. First, the device is brought close to the spreader's twist lock nut. The positioning auxiliary ring 2 plays a crucial role; it is a 25mm high ring cut from a 75mm diameter round tube and welded to the center of the bottom surface of the top plate 1. Its inner diameter matches the positioning notch size of the spreader's twist lock nut, forming a clearance fit. The operator can easily slip the positioning auxiliary ring 2 into the positioning notch of the twist lock nut. This process provides precise initial positioning for the entire disassembly and assembly operation, ensuring accurate alignment between the device and the twist lock nut and preventing misalignment or slippage during subsequent operations.

[0020] The top plate 1 has six M8 through holes, which are distributed in a six-part circle around the center of the top plate, with each circle 25mm away from the center. The plate teeth 3 are M8×30 ​​bolts that pass through the through holes in the top plate 1 and are secured with nuts. The number of plate teeth 3 corresponds to the number of positioning notches in the spin lock nut of the lifting device, forming a one-to-one correspondence. After the positioning auxiliary ring 2 completes the positioning, the plate teeth 3 fit precisely into the positioning notches of the spin lock nut, further enhancing the connection stability and compatibility between the device and the spin lock nut, preparing for subsequent torque transmission.

[0021] When the operator operates the ratchet wrench, the rotation of the ratchet wrench is transmitted to the top plate 1 through the ratchet connecting sleeve 4. The top plate 1 then transmits the torque to the lock nut through the plate teeth 3 fixedly connected to it. When disassembling the lock nut, the operator rotates the ratchet wrench counterclockwise, gradually loosening the lock nut through the torque transmission path described above; when installing the lock nut, the operator rotates the ratchet wrench clockwise to tighten the lock nut.

[0022] Top plate 1 is a circular iron plate with a thickness of 8mm and a diameter of 80mm, made of Q235 carbon structural steel. This structural and material design ensures that top plate 1 has sufficient strength and stability to withstand the large torque transmitted by the ratchet wrench during assembly and disassembly, while avoiding deformation due to stress, thus ensuring the overall reliability of the device.

[0023] The positioning auxiliary ring 2 is fully welded to the center of the bottom surface of the top plate 1, with a weld height of not less than 3mm. This welding process ensures the firmness of the connection between the positioning auxiliary ring 2 and the top plate 1, preventing loosening or separation during torque transmission and further guaranteeing the stability and accuracy of the device's operation.

[0024] In summary, this spinlock head disassembly and assembly device for spreader lifting achieves precise positioning, stable connection, and efficient torque transmission through the rational design and coordinated operation of its components, thereby completing the disassembly and assembly of the spinlock head for spreader lifting.

[0025] It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A device for disassembling a spinning lock head of a spreader, characterized in that: It includes a top plate, a positioning auxiliary ring, a plate tooth and a ratchet connecting sleeve; the top plate is a circular iron plate, six M8 through holes are arranged on the top plate, the through holes are distributed in a six-equal-division circle with the center of the top plate as the center, the positioning auxiliary ring is a circular ring with a height of 25 mm which is cut from a circular tube with a diameter of 75 mm and is welded on the center of the bottom surface of the top plate, the plate tooth passes through the through hole of the top plate and is fixed by a nut; and the ratchet connecting sleeve is welded on the center of the top surface of the top plate.

2. The lifting device spin lock head dismounting device according to claim 1, characterized in that: The bolt head of the plate tooth is flush with the top surface of the top plate, and the nut is fixed on the bottom surface of the top plate.

3. The device according to claim 1, wherein: The number of the plate tooth is consistent with the number of the positioning notches of the hoist spin lock nut, forming a one-to-one correspondence.

4. The lifting device spin lock head dismounting device according to claim 1, characterized in that: The outer diameter of the ratchet connecting sleeve is matched with the interface size of a commonly used ratchet wrench.

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