Automatic unhooking hoisting equipment

Abstract

This invention relates to an automatic unhooking hoisting device, which includes a hook, a chain, and a cable. The hook has a hook body and a stop plate, and the hook body has a hook mouth. Furthermore, the stop plate is pivotally mounted on the hook body and can selectively close the hook mouth. The stop plate has a pull guide plate on the side opposite to the hook mouth, which covers the outside of the hook-shaped component below. In this way, the operator can pull the pull guide plate from above to simultaneously drive the stop plate, thereby opening the hook mouth of the hook below, and further enabling the hook to automatically release the suspended object.

Description

[Technical Field]

[0001] This invention belongs to the technical field of a lifting hook, specifically referring to an automatic unhooking lifting device that allows the hook to be automatically removed from the suspended object, eliminating the need for workers to wait below the suspended object and perform manual unhooking operations, thus preventing the suspended object from falling to the bottom and injuring workers, thereby improving work safety. [Previous Technology]

[0002] Note that a hook is a device used to assist in lifting objects into or out of a work area. Typically, a chain is connected to the hook for pulling up or lowering the object. For safety reasons, to prevent the hook from detaching from the object during lifting operations, a stop plate is usually installed at the hook mouth to completely or almost completely close the hook mouth, preventing the unintentional release of the load or other component contained in the hook body.

[0003] During underground construction work (such as manholes and working wells for pipeline projects, well foundations, deep excavation foundations, etc.), to remove the hooks above the suspended objects, workers often need to work at the lowest level and below the suspended objects for convenience or due to the narrow underground working space. The hooks are removed when the suspended objects are lowered to the lowest level to release the suspended objects. However, during this process, if the suspension cable breaks, the hook becomes brittle, or the suspended object becomes unstable and falls, the suspended object may fall to the bottom. At this time, if the workers at the bottom cannot avoid it in time, there is a high chance that it will hit the workers at the bottom who are removing the hooks, resulting in a serious accident.

[0004] The best way to solve the safety problem of unhooking suspended objects during underground suspended operations is to ensure that no workers are below the suspended object; and to perform the unhooking operation on the ground. This way, even if the suspended object falls to the ground floor due to the above-mentioned accident, it will not accidentally strike workers and cause a major accident. How to solve the aforementioned problem is what the industry and users expect, and it is also what this invention aims to explore.

[0005] In view of the above-mentioned shortcomings and needs, the creator believes that further improvements are necessary. Therefore, based on years of experience in related technologies and product design and manufacturing, the creator has researched and created solutions to address the above-mentioned shortcomings and actively sought solutions. Through continuous research and trial production, the creator has finally successfully developed an automatic unhooking and hoisting device to overcome the inconvenience and troubles caused by the existing structure. [Summary of the Invention]

[0006] Therefore, the main objective of this invention is to provide an automatic unhooking hoisting device that can perform unhooking operations on the ground in order to prevent and reduce the risk of objects falling during hoisting operations.

[0007] Furthermore, a second primary objective of the present invention is to provide an automatic unhooking hoisting device that is easy to operate and greatly improves the practicality of the hook.

[0008] Based on this, the present invention mainly achieves the aforementioned objectives and effects through the following technical means, which include:

[0009] A hook has a hook body and a stop plate. The hook body has an upper connecting part and a lower hook-shaped part. The lower hook-shaped part has a hooking space, and a hook mouth is formed between one side of the lower hook-shaped part and the upper connecting part, which communicates with the outside and the hooking space. Furthermore, the stop plate is pivotally mounted on the upper connecting part of the hook body to selectively close the hook mouth. The stop plate can generate an automatic fully or almost fully closed restoring force relative to the hook mouth of the hook body. The stop plate is provided with a pull guide plate covering the outside of the lower hook-shaped part on the side opposite to the hook mouth.

[0010] A lifting chain having an upper end and a lower end, wherein the lower end of the lifting chain can be connected to the hook, and the upper end of the lifting chain can be selectively provided to a fixed body located above;

[0011] A cable having an upper end and a lower end, the lower end of the cable being disposed on the pull guide plate of the stop buckle plate, and the upper end of the cable being available for operation by a worker above;

[0012] This allows the operator to pull the guide plate from above to simultaneously drive the stop plate, thereby opening the hook mouth of the hook located below, and further enabling the hook to automatically release the suspended object.

[0013] Thus, through the specific implementation of the above-mentioned technical means, the present invention can utilize the design of the stop plate on the hook being pulled by the cable, allowing the operator to operate from the surface and automatically release the hook located below. In this way, if the suspended object falls to the bottom due to the broken suspension cable, brittle hook, or unstable center of gravity of the suspended object, it will not accidentally hit the operator and cause a major accident, thus greatly improving the safety of the suspension operation, thereby increasing the added value of the product and improving its economic benefits.

[0014] Furthermore, the present invention utilizes the following technical means to further achieve the aforementioned objectives and effects; such as:

[0015] Preferably, the upper connecting part of the hook body can be a ring body.

[0016] Preferably, the top of the connecting component is provided with a coupling member, which allows the hanging chain to be selectively attached using a hook.

[0017] Preferably, the upper end of the chain has a hanging ring for hooking onto a mobile or fixed crane hook.

[0018] Preferably, the stop buckle is connected to the hook body via a pivot, and the stop buckle is provided with an elastic storage member at the coaxial position of the pivot, so that the stop buckle can generate a restoring preload.

[0019] Preferably, at least one side of the pull guide plate is connected to the hook body with an extension piece.

[0020] Preferably, the pull guide plate has a hanging lug for the pull cable to be connected.

[0021] Preferably, the pull guide plate has a hanging hole lug, and the lower end of the pull cable is fixed to the hanging hole lug of the stop buckle plate.

[0022] Preferably, the chain is provided with at least one guide plate, and the guide plate has at least one lug for the aforementioned cable to pass through, so as to avoid the cable from getting tangled or knotted during operation.

[0023] In order to enable your review committee to further understand the structure, features and other objects of the present invention, the following are preferred embodiments of the present invention, which are described in detail below with reference to the drawings, so as to enable those skilled in the art to carry out the invention.

Implementation Method

[0024] In the specific embodiments and components of the present invention illustrated in the accompanying drawings, all references to front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are for convenience of description only and are not intended to limit the present invention or restrict its components to any position or spatial orientation. The dimensions specified in the drawings and specification may be varied according to the design and requirements of the present invention without departing from the scope of the claims.

[0025] The detailed structure of the preferred embodiment of the automatic unhooking hoisting equipment of the present invention is as shown in the first and second figures, which includes a hook (10), a chain (30) and a cable (40).

[0026] The hook (10) has a hook body (11) and a stop plate (20), as shown in the third figure. The hook body (11) has an upper connecting part (12) and a lower hook-shaped part (13). The upper connecting part (12) can be a ring body. The lower hook-shaped part (13) has a hooking space (14). A connection is formed between one side of the lower hook-shaped part (13) and the upper connecting part (12). The hook mouth (15) of the hook space (14) is used for the hanging object (50) to enter and exit the hook-shaped part (13) below the hook body (11). The top of the connecting part (12) above the hook body (11) has a coupling part (16), such as a hanging ring, for the chain (30) to be selectively attached. Furthermore, the stop plate (20) is pivoted through the connecting part (12) above the hook body (11) with a pivot (21) to correspond to the hook mouth (15), so that the stop plate... The stop plate (20) can open the hook mouth (15) of the hook body (11) to the hooking space (14) side of the hook body (11), and the stop plate (20) is provided with an elastic storage member (22) at the coaxial position of the pivot (21), so that the stop plate (20) can generate an automatic fully or almost fully closed return preload relative to the hook mouth (15) of the hook body (11), and the stop plate (20) is provided with a covering on the side opposite to the hook mouth (15) to cover the lower hook. The pull guide plate (23) on the outside of the shape component (13) has an extension piece (24) connected to the hook body (11) on at least one side of the pull guide plate (23). The pull guide plate (23) and the stop buckle plate (20) of the present invention are mainly implemented with extension pieces (24) on both sides. Furthermore, the pull guide plate (23) has a hanging hole lug (25) for the aforementioned pull cable (40) to connect, so that the stop buckle plate (20) can be pulled by the pull cable (40).

[0027] The chain (30) has an upper end and a lower end, wherein the lower end of the chain (30) has a hook (31) that can be selectively coupled to the hook (10) coupling (16), such as a hook, and the upper end of the chain (30) has a hanging ring (32) for a mobile or fixed crane hook to be hooked (as shown in Figure 5). Furthermore, the middle section of the chain (30) is provided with at least one guide plate (35), and at least one lug (36) is formed on the guide plate (35) for the aforementioned cable (40) to pass through, so as to prevent the cable (40) from getting tangled or knotted during operation.

[0028] Furthermore, the cable (40) has an upper end and a lower end. The lower end of the cable (40) is fixed to the hanging hole lug (25) of the pull guide plate (23) of the stop buckle plate (20). The upper end of the cable (40) can pass through the guide plates (35) on the chain (30) and allow the operator to operate the cable (40) at the other end so that by pulling the pull guide plate (23), the stop buckle plate (20) can be driven to open the hook mouth (15) of the hook body (11) [as shown in the fourth figure].

[0029] In this way, by pulling the guide plate (23) from above, the stop plate (20) can be driven simultaneously to automatically open the hook mouth (15) of the hook (10) located below, thus forming an automatic unhooking hoisting device that is simple to operate and highly safe.

[0030] As for the actual operation of the automatic unhooking hoisting equipment of the present invention, it is as shown in Figures 1, 2, 4 and 5. In operation, the hoisting chain (30) is hooked onto the coupling member (16) of the hook (10) with the hook (31), and one end of the cable (40) is fixed to the lug (25) of the guide plate (23) of the stop buckle plate (20) of the hook (10). Then, the cable (40) is passed through the lug (36) of the guide plate (35) on the hoisting chain (30), so that the operator can operate the cable (40) at one end above the well.

[0031] In this way, when the other end of the chain (30) is hung on the hook of a mobile or fixed crane above the well (such as manholes and working wells, well foundations, deep excavation foundations, etc. in pipeline engineering), the hook (10) can be used to lift the object into the bottom of the well. When the object is lowered to the bottom and the hook is to be removed, the cable (40) is pulled so that the cable (40) can actuate the guide plate (23) of the stop plate (20), and then the stop plate (20) is actuated simultaneously to open the hook mouth (15) of the hook body (11) of the hook (10) (as shown in the fourth figure). When the cable (40) is pulled, the hook-shaped part (13) below the hook body (11) can be effectively dislodged from the object (as shown in the fifth figure), so that the hook (10) can release the object.

[0032] Through the aforementioned design and description, the automatic unhooking hoisting equipment of the present invention can utilize the stop plate (20) on the hook (10) to be pulled by the cable (40), allowing the operator to operate from the well, so that the hook (10) located below can be automatically unhooked. In this way, if the hoisting cable breaks, the hook breaks, or the hoisting object becomes unstable and falls to the bottom, it will not accidentally hit the operator and cause a major accident, thus greatly improving the safety of hoisting operations.

[0033] Therefore, it can be understood that the present invention is an excellent creation. In addition to effectively solving the problems faced by existing inventors, it greatly improves the efficacy. Moreover, no identical or similar products have been created or publicly used in the same technical field. Since it has improved efficacy, the present invention has met the requirements of "novelty" and "inventiveness" for invention patents, and an invention patent application has been filed in accordance with the law. [Simplified Explanation of the Diagram]

[0034] Figure 1: is a schematic diagram of the appearance of the automatic unhooking hoisting equipment of the present invention, for illustrating the appearance of its components and their relative relationships.

[0035] Figure 2: This is a three-dimensional schematic diagram of the hook in the automatic unhooking hoisting equipment of the present invention, for illustrating the appearance of the hook.

[0036] Figure 3: This is a three-dimensional exploded view of the hook in the automatic unhooking hoisting equipment of the present invention, which is used to illustrate the state of each component of the hook and their relative relationships.

[0037] Fourth figure: It is a planar motion diagram of the hook in the automatic unhooking hoisting equipment of the present invention.

[0038] Figure 5: A schematic diagram of the operation of the automatic unhooking and hoisting equipment of the present invention.

Claims

1. An automatic unhooking lifting device, comprising: a hook having a hook body and a stop plate, the hook body having an upper connecting member and a lower hook-shaped member, wherein the lower hook-shaped member has a hooking space, and a hook mouth communicating with the outside and the hooking space is formed between one side of the lower hook-shaped member and the upper connecting member; furthermore, the stop plate is pivotally mounted on the upper connecting member of the hook body to selectively close the hook mouth; the stop plate is pivotally mounted on the upper connecting member of the hook body by a pivot, and the stop plate is provided with an elastic storage member at the coaxial position of the pivot, so that the stop plate can generate a restoring preload to automatically and completely or almost completely close the hook mouth of the hook body; furthermore, the stop plate is provided with a pull guide plate covering the outside of the lower hook-shaped member on the side opposite to the hook mouth, and at least one side of the pull guide plate is connected to the hook body with an extension piece; A lifting chain having an upper end and a lower end, the lower end of which can be connected to a hook, the lifting chain having at least one guide plate with a lug; a cable having an upper end and a lower end, the lower end of which is provided on the pull guide plate of the stop buckle, and the cable can pass through the lug of the aforementioned guide plate to prevent the cable from getting tangled or knotted during operation, and the upper end of the cable can be operated by an operator from above; thereby allowing the operator to pull the pull guide plate from above to simultaneously drive the stop buckle to open the hook mouth of the hook located below, and further enabling the hook to automatically release the suspended object.

2. The automatic unhooking hoisting equipment as described in claim 1, wherein the upper connecting component of the hook body may be a ring body.

3. The automatic unhooking hoisting equipment as described in claim 1 or 2, wherein the top of the connecting component is provided with a coupling member for the hoisting chain to be selectively attached by a hook.

4. The automatic unhooking hoisting equipment as described in claim 3, wherein the upper end of the hoisting chain has a hanging ring for hooking a mobile or fixed crane hook.

5. The automatic unhooking hoisting equipment as described in claim 1, wherein the pull guide plate has a hanging hole lug, and the lower end of the pull cable is fixed to the hanging hole lug of the stop buckle plate.

Images