Hook dismounting tool and ship construction equipment

By designing a hook removal tool that utilizes a ratchet and pawl to achieve unidirectional swinging, combined with a detachable secondary rod, the safety risks and low efficiency of traditional hook removal methods are solved, enabling safe and efficient hook removal operations.

CN121849772APending Publication Date: 2026-04-14上海外高桥造船海洋工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-10
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional unhooking methods pose high safety risks, are inconvenient to operate, and are inefficient. Construction workers need to climb to heights to operate, which increases labor costs.

Method used

Design a hook removal tool that includes an extension rod, an adjustment component, and a hook removal part. Through the cooperation of a ratchet, a pawl, and an elastic element, the hook removal part can swing in one direction relative to the extension rod to ensure stable operation. Combined with a detachable secondary rod design, it can adapt to different height requirements.

Benefits of technology

This reduces the risk of falls for construction workers, allows for dismantling operations by a single person, improves efficiency, and reduces labor costs.

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Abstract

The invention relates to the field of operation tools, in particular to a hook dismounting tool and ship construction equipment. The hook disassembling tool comprises a lengthening rod, an adjusting assembly and a hook disassembling piece. One end of the lengthening rod is a holding end, and the other end of the lengthening rod is hinged to the hook detaching piece. The adjusting assembly is installed between the lengthening rod and the hook disassembling piece so that the hook disassembling piece can swing in the single direction relative to the lengthening rod, and therefore the included angle between the lengthening rod and the hook disassembling piece can be changed. According to the hook dismounting tool, a constructor only needs to carry out hook dismounting operation on the ground, and the falling risk caused by climbing is avoided. The hook dismounting operation can be completed by a single person through the hook dismounting tool, the operation is convenient and fast, the hook dismounting efficiency can be improved, and the labor cost is reduced.
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Description

Technical Field

[0001] This application relates to the field of operating tools, and in particular to a hook-removal tool and shipbuilding equipment. Background Technology

[0002] Ship sections are assembled from various modular panels. For lighter modular panels, lifting clamps are generally used for hoisting. Before using lifting clamps to hoist modular panels, the object to be hoisted needs to be pre-secured using the locking device on the lifting clamps. After hoisting, the locking device needs to be manually released before the lifting clamps can be detached from the object.

[0003] During the hoisting process, the lifting clamps are more than 4 meters above the ground. The traditional method of dismantling the clamps involves workers climbing ladders into the air to do so. This method has the following problems: First, it poses a high safety risk, as the ladders are prone to slipping against the ship sections, increasing the risk of workers falling. Second, the dismantling operation is inconvenient and inefficient, as workers have limited operating space on the ladders, and dismantling a single clamp requires repeated climbing up and down. Third, it increases labor costs, as dismantling a single clamp requires at least two workers. Summary of the Invention

[0004] The purpose of this application is to provide a hook-removal tool and shipbuilding equipment that can perform hook-removal operations on lifting clamps and reduce operational safety risks.

[0005] This application provides a hook removal tool, including an extension rod, an adjustment assembly, and a hook removal component; One end of the extension rod is a gripping end, and the other end of the extension rod is hinged to the hook removal component; The adjustment component is installed between the extension rod and the hook removal component, so that the hook removal component can swing in one direction relative to the extension rod, thereby changing the included angle between the extension rod and the hook removal component.

[0006] In the above technical solution, the adjustment component further includes a ratchet, a pawl, and an elastic element; The extension rod is equipped with the ratchet; the pawl is movably connected to the hook-removing component, and the pawl engages in the tooth groove of the ratchet; The elastic element is installed between the pawl and the hook release member so that the pawl has a tendency to engage with the tooth groove of the ratchet.

[0007] In the above technical solution, the elastic element is further defined as a spring.

[0008] In the above technical solution, the adjustment component further includes a pressing element; The pawl includes a connecting rod and a pawl; the middle part of the connecting rod is rotatably mounted on the hook-removing component; the pawl is connected to one end of the connecting rod, and the pawl is located on the side of the connecting rod facing the ratchet; the elastic element is connected to the connecting rod, and the elastic element is located on the side of the connecting rod away from the ratchet. The pressing member is located at the other end of the connecting rod, and the pressing member is movably mounted on the hook release member; when the pressing member applies pressure to the connecting rod, the pawl moves away from the tooth groove of the ratchet.

[0009] In the above technical solution, a connecting shaft is further provided between the extension rod and the hook-removing component; The connecting shaft is connected to the extension rod, and the ratchet is connected to the connecting shaft; The end of the hook-removing component is connected to the connecting shaft, and the hook-removing component can swing around the connecting shaft.

[0010] In the above technical solution, the hook removal component is further provided with an embedding groove, and the ratchet is located in the embedding groove.

[0011] In the above technical solution, the extension rod further includes a main rod and a secondary rod; One end of the main rod is hinged to the hook-removing component, and the other end of the main rod is detachably connected to the auxiliary rod.

[0012] In the above technical solution, the number of the auxiliary rods is multiple, and the multiple auxiliary rods are detachably connected.

[0013] In the above technical solution, the surface of the extension rod is further provided with anti-slip texture.

[0014] This application also provides a shipbuilding device, including the unhooking tool described in the above-described scheme.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The hook removal tool provided in this application allows construction workers to perform hook removal operations solely on the ground, avoiding the risk of falls caused by climbing. Furthermore, the hook removal operation can be completed by a single person using the tool, making it convenient and quick, improving efficiency, and reducing labor costs.

[0016] This application also provides shipbuilding equipment, including the unhooking tool described in the above scheme. Based on the above analysis, it is clear that the shipbuilding equipment also possesses the aforementioned beneficial effects, which will not be elaborated upon further here. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A first structural schematic diagram of the hook-removing tool provided in this application; Figure 2 A first structural schematic diagram of the adjustment component provided in this application; Figure 3 A second structural schematic diagram of the adjustment component provided in this application; Figure 4 A schematic diagram of the third structure of the adjustment component provided in this application; Figure 5 This is a schematic diagram of the second structure of the hook removal tool provided in this application.

[0019] In the diagram: 101-Extend rod; 102-Hook removal part; 103-Ratchet; 104-Spring; 105-Pressing part; 106-Connecting rod; 107-Pawl; 108-Connecting shaft; 109-Claw; 110-Embedding slot; 111-Main rod; 112-Secondary rod. Detailed Implementation

[0020] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] Example 1 See Figures 1 to 5 As shown, the hook removal tool provided in this application includes an extension rod 101, an adjustment component, and a hook removal part 102; one end of the extension rod 101 is a gripping end, and the other end of the extension rod 101 is hinged to the hook removal part 102; the adjustment component is installed between the extension rod 101 and the hook removal part 102 so that the hook removal part 102 can swing in one direction relative to the extension rod 101, thereby changing the included angle between the extension rod 101 and the hook removal part 102.

[0024] Specifically, the unhooking tool provided in this application can be used in the ship assembly hull hoisting process. After the ship assembly hull is hoisted into place and temporarily fixed, the crane releases the hook, at which point the lifting clamp is clamped onto the assembly hull. First, the construction personnel adjust the angle between the unhooking part 102 and the extension rod 101 on the unhooking tool for easier operation; then, the construction personnel can hold one end of the extension rod 101. Due to the long length of the extension rod 101, the unhooking part 102 at the other end of the extension rod 101 can hook onto the handle or pull ring of the lifting clamp pre-tightening device to separate the lifting clamp from the assembly hull; subsequently, the top of the extension rod 101 is used to press against the lifting clamp to completely detach the lifting clamp from the assembly hull.

[0025] An adjustment assembly is installed between the extension rod 101 and the hook-removing component 102, allowing the hook-removing component 102 to swing in one direction relative to the extension rod 101. When adjusting the angle between the hook-removing component 102 and the extension rod 101, the hook-removing component 102 can only swing in one direction relative to the extension rod 101, that is, the hook-removing component 102 swings towards the extension rod 101. Figure 1 (as shown in direction A) swings. Thus, when the hook 102 hooks the handle or pull ring of the lifting clamp pretensioning device, the hook 102 is locked and positioned away from the extension rod 101 to keep the structure of the hook removal tool stable, prevent the hook 102 from disengaging or slipping, and ensure that the release action is completed stably and reliably during the application of force.

[0026] The hook removal tool provided in this application allows construction workers to perform hook removal operations solely on the ground, avoiding the risk of falls caused by climbing. Furthermore, the hook removal operation can be completed by a single person using the tool, making it convenient and quick, improving efficiency, and reducing labor costs.

[0027] In an optional embodiment, the adjusting assembly includes a ratchet 103, a pawl 109, and an elastic element; the extension rod 101 is equipped with the ratchet 103; the pawl 109 is movably connected to the unhooking member 102, and the pawl 109 engages in the tooth groove of the ratchet 103; the elastic element is installed between the pawl 109 and the unhooking member 102, so that the pawl 109 has a tendency to engage in the tooth groove of the ratchet 103. Optionally, the elastic element is a spring 104.

[0028] In this embodiment, the cooperation of the ratchet 103, the pawl 109, and the spring 104 ensures that the hook-removing component 102 can only swing in one direction relative to the extension rod 101, thereby adjusting the angular position of the hook-removing component 102 relative to the extension rod 101 for easier operation by the operator. Figure 2 As shown, the ratchet 103 connected to the extension rod 101 remains stationary. When the hook-removing component 102 swings clockwise, the pawl 109 slides sequentially across the teeth of the ratchet 103, thereby adjusting the angle of the hook-removing component 102. When the hook-removing component 102 needs to swing in the opposite direction, under the action of the spring 104, the pawl 109 connected to the hook-removing component 102 will continuously engage in the tooth groove of the ratchet 103.

[0029] When construction workers perform the dismantling operation, the relative position of the dismantling component 102 and the extension rod 101 remains unchanged. Furthermore, the meshing mechanism of the ratchet 103 and the pawl 109 enables precise positioning tooth by tooth, ensuring that the dismantling component 102 can stay stably at each tooth groove position, thus improving the accuracy and reliability of the operation.

[0030] In an optional embodiment, the adjustment assembly further includes a pressing member 105; the pawl 109 includes a connecting rod 106 and a pawl 107; the middle part of the connecting rod 106 is rotatably mounted on the hook-removing member 102; the pawl 107 is connected to one end of the connecting rod 106, and the pawl 107 is located on the side of the connecting rod 106 facing the ratchet 103; the elastic member is connected to the connecting rod 106, and the elastic member is located on the side of the connecting rod 106 away from the ratchet 103; the pressing member 105 is located at the other end of the connecting rod 106, and the pressing member 105 is movably mounted on the hook-removing member 102; when the pressing member 105 applies pressure to the connecting rod 106, the pawl 107 moves away from the tooth groove of the ratchet 103.

[0031] In this embodiment, after the hook removal action is completed, the locking state between the pawl 107 and the ratchet 103 can be manually released by pressing the button 105, thereby resetting or adjusting the angle of the hook removal component 102. The included angle between the hook removal component 102 and the extension rod 101 can be flexibly adjusted according to actual needs to adapt to hook structures with different installation angles and connection methods.

[0032] like Figure 2 and Figure 3As shown, the pawl 107 is located at the upper end of the connecting rod 106 and faces the ratchet 103. The connecting rod 106 is connected to the hook release member 102 via a spring 104. Under the pushing action of the spring 104, the upper end of the connecting rod 106 moves closer to the ratchet 103, so that the pawl 107 engages with the tooth groove of the ratchet 103. The pressing member 105 is located at the lower end of the connecting rod 106. When the operator presses the pressing member 105, the pressing member 105 presses down on the lower end of the connecting rod 106, and the upper end of the connecting rod 106 lifts up, so that the pawl 107 disengages from the tooth groove of the ratchet 103, thereby unlocking the hook release member 102 and the extension rod 101. At this time, the angle between the hook release member 102 and the extension rod 101 can be adjusted in both clockwise and counterclockwise directions.

[0033] In the optional solutions of this embodiment, such as Figures 2 to 4 As shown, a connecting shaft 108 is provided between the extension rod 101 and the hook removal part 102; the connecting shaft 108 is connected to the extension rod 101, and the ratchet 103 is connected to the connecting shaft 108; the end of the hook removal part 102 is connected to the connecting shaft 108, and the hook removal part 102 can swing around the connecting shaft 108.

[0034] In this embodiment, the extension rod 101 and the hook removal component 102 are hinged together by a connecting shaft 108, allowing the hook removal component 102 to swing relative to the extension rod 101. The connecting shaft 108 is fixedly connected to the extension rod 101, and a ratchet 103 is sleeved on the connecting shaft 108 to secure the ratchet 103, thereby fixing the relative position between the ratchet 103 and the extension rod 101.

[0035] In an optional embodiment, the hook detacher 102 is provided with an insert groove 110, and the ratchet 103 is located in the insert groove 110.

[0036] In this embodiment, the recessed groove 110 on the hook-removing component 102 accommodates the ratchet 103, which not only saves space but also makes the entire adjustment assembly more compact, reducing the overall size of the tool and making it easier to carry and store. The structure of the recessed groove 110 also provides physical protection for the ratchet 103, thereby improving the reliability and service life of the ratchet 103.

[0037] Example 2 The hook removal tool in this second embodiment is an improvement on the above embodiments. The technical content disclosed in the above embodiments will not be described again, and the content disclosed in the above embodiments also belongs to the content disclosed in this second embodiment.

[0038] See Figure 5 As shown, in an optional embodiment, the extension rod 101 includes a main rod 111 and a secondary rod 112; one end of the main rod 111 is hinged to the hook detachment member 102, and the other end of the main rod 111 is detachably connected to the secondary rod 112.

[0039] Preferably, there are multiple auxiliary rods 112, and the multiple auxiliary rods 112 are detachably connected.

[0040] In this embodiment, the main rod 111 and the auxiliary rod 112 are specifically steel pipes, and their detachable connection allows the length of the extension rod 101 to be adjusted according to actual needs. If the lifting clamp's height from the ground exceeds the operating height of the main rod 111 of the unhooking tool, the auxiliary rod 112 can be connected to the main rod 111 to increase the overall length of the extension rod 101. Multiple auxiliary rods 112 are used to meet the unhooking requirements of lifting clamps at different heights. The detachable connection between multiple auxiliary rods 112 allows the entire extension rod 101 to be disassembled into several shorter sections, facilitating transportation and storage, saving space, and reducing transportation costs and storage difficulties.

[0041] Optionally, the main rod 111 and the auxiliary rod 112, and the auxiliary rod 112 and the auxiliary rod 112 can be connected by threaded connection or connector.

[0042] In an optional embodiment, the surface of the extension rod 101 is provided with anti-slip texture. The anti-slip texture increases the friction between the hand and the extension rod 101, allowing the operator to more precisely control the angle and position of the extension rod 101, which helps to improve the accuracy and success rate of the hook removal operation.

[0043] Example 3 Embodiment 3 of this application provides a shipbuilding equipment, including the unhooking tool of any of the above embodiments, and thus has all the beneficial technical effects of the unhooking tool of any of the above embodiments, which will not be repeated here.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.

Claims

1. A hook removal tool, characterized in that, Includes extension rod, adjustment assembly, and hook removal parts; One end of the extension rod is a gripping end, and the other end of the extension rod is hinged to the hook removal component; The adjustment component is installed between the extension rod and the hook removal component, so that the hook removal component can swing in one direction relative to the extension rod, thereby changing the angle between the extension rod and the hook removal component.

2. The hook removal tool according to claim 1, characterized in that, The adjustment assembly includes a ratchet, a pawl, and an elastic element; The extension rod is equipped with the ratchet; the pawl is movably connected to the hook-removing component, and the pawl engages in the tooth groove of the ratchet; The elastic element is installed between the pawl and the hook release member so that the pawl has a tendency to engage with the tooth groove of the ratchet.

3. The hook removal tool according to claim 2, characterized in that, The elastic element is a spring.

4. The hook removal tool according to claim 2, characterized in that, The adjustment assembly also includes a pressing element; The pawl includes a connecting rod and a pawl; the middle part of the connecting rod is rotatably mounted on the hook-removing component; the pawl is connected to one end of the connecting rod, and the pawl is located on the side of the connecting rod facing the ratchet; the elastic element is connected to the connecting rod, and the elastic element is located on the side of the connecting rod away from the ratchet. The pressing member is located at the other end of the connecting rod, and the pressing member is movably mounted on the hook release member; when the pressing member applies pressure to the connecting rod, the pawl moves away from the tooth groove of the ratchet.

5. The hook removal tool according to claim 2, characterized in that, A connecting shaft is provided between the extension rod and the hook-removing component; The connecting shaft is connected to the extension rod, and the ratchet is connected to the connecting shaft; The end of the hook-removing component is connected to the connecting shaft, and the hook-removing component can swing around the connecting shaft.

6. The hook removal tool according to claim 5, characterized in that, The hook-removing component is provided with an insert groove, and the ratchet is located in the insert groove.

7. The hook removal tool according to claim 1, characterized in that, The extension rod includes a main rod and a secondary rod; One end of the main rod is hinged to the hook-removing component, and the other end of the main rod is detachably connected to the auxiliary rod.

8. The hook removal tool according to claim 7, characterized in that, The number of auxiliary rods is multiple, and the multiple auxiliary rods are detachably connected to each other.

9. The hook removal tool according to claim 1, characterized in that, The surface of the extension rod is provided with anti-slip texture.

10. A shipbuilding equipment, characterized in that, Includes the hook removal tool as described in any one of claims 1 to 9.