Portable mechanical anti-falling lifting hook for travelling crane

Abstract

The portable mechanical anti-dropping lifting hook comprises a hook body, the hook body comprises a connecting part, a bent part and a hook tip, one end of the connecting part is fixed on a traveling device, the other end of the connecting part is smoothly connected with one end of the bent part, and the other end of the bent part is smoothly connected with the bottom end of the hook tip; the anti-falling part comprises a fixing piece and a connecting piece, the end of the fixing piece is connected with the connecting part of the hook body, and the bottom of the fixing piece is arranged opposite to the end of the hook tip; the connecting piece is of a hollow cylinder structure, movably arranged outside the fixing piece in a sleeving mode and capable of moving in the direction of the central axis of the fixing piece. The opening end of the connecting piece opposite to the hook tip is matched with the hook tip; according to the utility model, the anti-falling operation of the lifting hook during lifting is realized by a pure mechanical structure.

Description

Technical Field

[0001] The utility model relates to a portable mechanical anti - detachment hook for a traveling crane, belonging to the technical field of lifting hooks. Background Art

[0002] In scenarios such as industrial production and cargo hoisting, traveling cranes are commonly used lifting equipment. During the use of traditional hooks, there is a risk of accidental detachment of the cargo. Once detachment occurs, it may cause serious casualties and property losses. To improve the safety of traveling crane operations, a reliable anti - detachment device is needed to prevent the cargo on the hook from falling off.

[0003] At present, most anti - detachment hooks on the market adopt spring - type stoppers, which require the operator to press with both hands, being laborious and time - consuming. Therefore, in response to this design, technicians have attempted to use a hydraulic mode structure to achieve the anti - detachment of the hook. For example, the utility model with the application number 201921928618.9 discloses a self - adapting anti - falling hook for a hydraulic crane, including a hook, an outer cover, and a pulley. The pulley is rotatably connected to the groove on the upper side of the outer cover. The lower end of the outer cover is provided with a receiving groove, and the bottom surface of the receiving groove is provided with a first through - hole penetrating the receiving groove and communicating with the outside; a static baffle is provided on the bottom surface of the receiving groove, and a moving slide plate is provided at the upper end of the receiving groove. A static contact is provided on the static baffle, and a moving contact corresponding to the static contact is provided on the plate - shaped part; a locking groove is provided at one end of the hook head of the hook, and an electromagnet is provided at the bottom of the locking groove; a push - rod groove is provided at the position of the hook body of the hook corresponding to the locking groove, and a push rod is slidably connected in the push - rod groove. When in use, when the hook pulls the heavy object and its position drops, the moving contact contacts the static contact, causing the electromagnet to gain or lose power, thereby adaptively controlling the opening and closing of the push rod, reducing the working steps of the hook operator. The hook operator only needs to hang the rope on the hook.

[0004] However, this hydraulic structure is prone to problems after multiple uses, resulting in a relatively high replacement cost; at the same time, in some narrow workshops or outdoor temporary operation sites, large fixed anti - detachment devices may not be applicable, and a portable anti - detachment hook is needed to meet the requirements of flexible operations. Therefore, it is necessary to design a portable anti - detachment hook for a traveling crane to solve the above problems with a simple structure. Summary of the Invention

[0005] The utility model provides a portable mechanical anti - detachment hook for a traveling crane, which realizes the anti - detachment operation of the hook during hoisting with a pure mechanical structure.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A portable mechanical anti - detachment hook for a traveling crane, comprising a hook body. The hook body includes a connecting part, a bending part and a hook tip. One end of the connecting part is fixed on the traveling crane device, and the other end is smoothly connected to one end of the bending part. The other end of the bending part is smoothly connected to the bottom end of the hook tip;

[0008] It further includes an anti - detachment part, which includes a fixing piece and a connecting piece. The end of the fixing piece is connected to the connecting part of the hook body, and the bottom of the fixing piece is arranged opposite to the end of the hook tip; The connecting piece is of a hollow cylindrical structure, which is movably sleeved outside the fixing piece and can move along the central axis direction of the fixing piece;

[0009] The opening end of the connecting piece opposite to the hook tip is matched with the hook tip;

[0010] Furthermore, a hollow groove is opened along the central axis direction on the circumferential wall of the connecting piece. A movable bolt sequentially passes through the hollow groove and the fixing piece, and the movable bolt passes through perpendicular to the central axis direction of the fixing piece;

[0011] Furthermore, a through - connection hole is opened at the end of the fixing piece. One end of a connecting arm is fixed on a collar, and the collar is sleeved and fixed on the connecting part of the hook body. A connecting bolt simultaneously passes through the connection hole and the other end of the connecting arm, and the fixing piece can move relative to the connecting arm;

[0012] Furthermore, when installing the portable mechanical anti - detachment hook on the traveling crane device, one portable mechanical anti - detachment hook is installed at each position near both ends of the traveling crane device.

[0013] Through the above technical solutions, compared with the prior art, the present utility model has the following beneficial effects:

[0014] For the portable mechanical anti - detachment hook for a traveling crane provided by the present utility model, when the hook is working, only need to slide the position of the connecting piece on the fixing piece to match the positions of the hook tip and the fixing piece. At this time, the connecting piece falls back under the action of its own gravity and is sleeved outside the hook tip. The fixing piece, the connecting piece and the hook tip form a closed structure, tightly locking the hoisting rope to complete the anti - detachment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0016] Figure 1 It is the overall structural schematic diagram when the preferred embodiment provided by the present utility model is installed on the traveling crane device;

[0017] Figure 2 It is the structural schematic diagram of the preferred embodiment of the anti - detachment hook provided by the present utility model;

[0018] Figure 3It is the left view of the anti - detachment hook in the preferred embodiment provided by the present utility model;

[0019] Figure 4 It is the right view of the anti - detachment hook in the preferred embodiment provided by the present utility model.

[0020] In the figure: 1 is the hook body, 11 is the connecting part, 12 is the bending part, and 13 is the hook tip;

[0021] 2 is the anti - detachment part, 21 is the fixing part, 211 is the connecting arm, and 212 is the collar;

[0022] 22 is the connecting piece, 221 is the hollow groove, and 222 is the movable bolt. Specific embodiments

[0023] Now, the present utility model will be further described in detail with reference to the accompanying drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by terms such as "left side", "right side", "upper part", "lower part", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not represent the importance degree of the components, so it cannot be understood as a limitation to the present utility model. The specific dimensions adopted in this embodiment are only for illustrating the technical solution by way of example and do not limit the protection scope of the present utility model.

[0024] As Figure 1 shown, it is a schematic diagram when the anti - detachment hook provided by the present utility model is applied to the traveling device. When installed on the traveling device, a portable mechanical anti - detachment hook is installed at positions near both ends of the traveling device respectively. Its structure is a pure mechanical structure, and the purpose of anti - detachment is achieved through simple structural connections, and both the production cost and the use cost are greatly reduced.

[0025] Specifically, as Figure 1 shown, it is the overall schematic diagram of the anti - detachment hook. Details are as Figures 3 - 4 follows. First, it is the hook body 1. The hook body includes a connecting part 11, a bending part 12, and a hook tip 13. One end of the connecting part is fixed on the traveling device, and the other end is smoothly connected to one end of the bending part. The other end of the bending part is smoothly connected to the bottom end of the hook tip. When the hook is in use, the rope is placed inside the bending part. When the traveling device is running, the lifted heavy object may cause the rope to shake inside the bending part. If the shaking amplitude is large, the rope may break away from the bending part, resulting in an accident.

[0026] Therefore, the innovation of this application lies in the setting of the anti - detachment part 2. Different from the traditional spring structure, the anti - detachment part of this application is purely mechanical, stable and low - cost. Preferably, the anti - detachment part includes a fixing member 21 and a connecting member 22. The end of the fixing member is connected to the connecting part of the hook body, and the bottom of the fixing member is arranged opposite to the tip end of the hook. Here, the anti - detachment part is still fixed on the hook body and can be realized without external force.

[0027] To achieve the anti - detachment operation here, it is necessary to ensure that a closed structure is formed after the fixing member, the connecting member and the hook tip are connected, and the closing effect is good. In this application, the connecting member is designed as a hollow cylindrical structure, which is movably sleeved outside the fixing member and can move along the central axis direction of the fixing member. The purpose of this design is that, as an important component connecting the fixing member and the hook tip, the connecting member is designed as a movable hollow sleeve. The two open ends are respectively sleeved on the fixing member and the hook tip, and the implementation of the closed structure can be achieved. Obviously, it is the choice with the best effect and the lowest cost. Of course, in order to achieve the best closing effect, the open end of the connecting member relative to the hook tip matches the hook tip.

[0028] There are various structures for the connecting member to satisfy the movement along the central axis direction of the fixing member. Preferably in this application, a hollow groove 221 is opened along the central axis direction on the circumferential wall of the connecting member, and a movable bolt 222 sequentially passes through the hollow groove and the fixing member, and the movable bolt passes through perpendicular to the central axis direction of the fixing member. The connecting member is hung on the fixing member. Before it is activated, due to its own gravity, the movable bolt is located at the uppermost end of the hollow groove ( Figure 3 view). When in use, manually move the connecting member upward (the movable bolt moves downward in the hollow groove), adjust the position of the fixing member relative to the hook tip, and then release the connecting member. The connecting member slides downward by its own gravity, and the end of the connecting member relative to the hook tip is sleeved outside the component, and the anti - detachment closed structure is generated.

[0029] As mentioned above, it is necessary to adjust the position of the fixing member relative to the hook tip. In this application, a through - connection hole is opened at the end of the fixing member. One end of the connecting arm 211 is fixed on the collar 212, and the collar is sleeved and fixed on the connecting part of the hook body. The connecting bolt simultaneously passes through the connection hole and the other end of the connecting arm. At this time, the fixing member can move relative to the connecting arm, and the position can be adjusted.

[0030] Those skilled in the art of this technology can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used here have the same meaning as the general understanding of those of ordinary skill in the field to which this application belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as here.

[0031] As used herein, "and / or" means that each exists alone or both exist simultaneously are included.

[0032] As used herein, "connected" can mean a direct connection between components or an indirect connection between components through other components.

[0033] Based on the ideal embodiments of the present utility model as described above, through the above description, relevant staff can, without departing from the technical idea of the present utility model, make various changes and modifications. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A portable mechanical anti - detachment hook for a vehicle, characterized in that: It includes a hook body, and the hook body includes a connecting part, a bending part and a hook tip. One end of the connecting part is fixed on the traveling device, and the other end thereof is smoothly connected to one end of the bending part. The other end of the bending part is smoothly connected to the bottom end of the hook tip. It further includes an anti - detachment part, which includes a fixing member and a connecting member. The end of the fixing member is connected to the connecting part of the hook body, and the bottom of the fixing member is arranged opposite to the end of the hook tip. The connecting member is of a hollow cylindrical structure, and it is movably sleeved outside the fixing member and can move along the central axis direction of the fixing member. The open end of the connecting member opposite to the hook tip is matched with the hook tip.

2. The portable mechanical anti - detachment hook for a vehicle according to claim 1, wherein: A hollow groove is formed on the circumferential wall of the connecting member along the central axis direction. A movable bolt sequentially passes through the hollow groove and the fixing member, and the movable bolt passes through perpendicular to the central axis direction of the fixing member.

3. The portable mechanical anti - detachment hook for a vehicle according to claim 1, characterized in that: A through - connection hole is formed at the end of the fixing member. One end of a connecting arm is fixed on a collar, and the collar is sleeved and fixed on the connecting part of the hook body. A connecting bolt simultaneously passes through the connection hole and the other end of the connecting arm, and the fixing member can move relative to the connecting arm.

4. The portable mechanical anti - detachment hook for a vehicle according to claim 1, characterized in that: When installing the portable mechanical anti - detachment hook on the traveling device, one portable mechanical anti - detachment hook is installed at each position near the two ends of the traveling device.

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