Anti-falling safety device for crane hook

Abstract

The utility model discloses an anti-dropping safety device for a crane hook, which comprises a hook body, an arc-shaped groove is arranged on the hook body, two groups of screws are rotatably connected in the arc-shaped groove, the two groups of screws are both provided with a same hand wheel, a plurality of groups of guide rods are arranged on the hook body, and the guide rods are arranged on the arc-shaped groove. Corresponding nuts are connected to the multiple sets of guide rods in a sliding mode. After an object to be lifted is placed on the lifting hook body, an operator presses down the handle to enable the top plate on the baffle to abut against one end of the lifting hook body, and at the moment, the circular groove in the open groove of the baffle is opposite to the position of the nut; then the hand wheel is rotated by fingers to enable the screw rod to rotate and drive the screw caps on the two sides to move under the cooperation of the screw rod and the guide rod, finally, part of the screw caps are embedded into the circular grooves, locking is achieved, the device is simple and convenient to use for an operator, the operator only needs to rotate the hand wheel to enable the screw caps to be embedded into the circular grooves, and the operation is convenient. And the use efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to crane hook technical field especially relates to a crane hook anti -drop safety device. BACKGROUND

[0002] In the use process of crane, the hook unhooking accident occurs from time to time, which brings extremely serious consequences. Once the hoisted heavy object accidentally slips from the hook, it may smash the expensive production equipment, production line in the industrial plant, leading to production interruption, bringing huge economic losses to enterprises, and also seriously threatens the life safety of workers operating nearby, causes irreparable personal injury tragedy, through the retrieval, the publication (announcement) number: CN221543858U discloses a crane hook anti -unhooking device, the crane hook anti -unhooking device is equipped with two groups of limit ports on the hook body, the damage to the hook body is small, then through the cooperation of limit port, snap ring, connecting piece and baffle, the effect of locking the hook body is achieved, however, there are deficiencies: when the device is in contact locking state, the second locking ring and the first locking ring are turned by the staff in turn, so that they are located at the lowermost position of the fixed sleeve, at this time, the connecting plate can be moved downward, then when it moves downward, the baffle moves downward, then when the right end of the baffle moves downward, the snap ring moves, the inner circle of the snap ring can accommodate the bending part, then the part of the snap ring is separated from the limit port, the snap ring can be separated from the bending part, then the snap ring and the connecting plate are moved upward synchronously, the unlocking operation of the snap ring is completed, at this time, the subsequent work can be normally carried out, the overall working process is relatively cumbersome, although the device can indeed fasten and unlock the locking work, but it is relatively troublesome for the operator, which affects the use efficiency. SUMMARY

[0003] The utility model aims at solving the shortcomings in the prior art and provides a crane hook anti -drop safety device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A crane hook anti -drop safety device, including the hook body, the hook body is equipped with the arc -shaped groove, the arc -shaped groove is rotatably connected with two groups of screw rods, two groups of screw rods are provided with same hand wheel, the hook body is installed with multiple guide rods, multiple guide rods are slidably connected with corresponding nuts, two groups of nuts are threadedly connected with both ends of screw rod respectively, the hook body is rotatably connected with the baffle, the baffle is equipped with the open slot, two groups of circular grooves are formed in the open slot.

[0006] Preferably, the two groups of screw rods are fixedly connected with the baffle cap at one end and the other end, and the inner hole of the two groups of nuts is provided with an inner hole groove.

[0007] Preferably, a top plate is mounted on the baffle.

[0008] Preferably, two groups of rod bodies are fixedly connected on the baffle.

[0009] Preferably, a handle is fixedly connected between the two groups of rod bodies.

[0010] Preferably, a mounting head is fixedly connected on the hook body, and a mounting hole is formed in the mounting head.

[0011] Preferably, anti-skid lines are formed in the hand wheel.

[0012] The utility model discloses a beneficial effect is:

[0013] 1. Through the hook body, arc -shaped groove, screw rod, hand wheel, guide rod and nut of setting, after placing hoisting material on the hook body, the operator makes the top plate on the baffle can resist the one end on the hook body through pressing handle, the circular groove on the opening groove of baffle is opposite the position of nut at this time, then utilizes the finger rotation hand wheel to make the screw rod rotate and drive both sides nut can displace under the cooperation of screw rod and guide rod, finally a part of nut will be embedded into circular groove, realizes the locking, and the device is relatively simple and convenient for the operator, only need to rotate hand wheel and make nut and circular groove embed, can greatly improve its use efficiency.

[0014] 2. Through setting the cap and the inner hole groove, because the both ends of screw rod are equipped with the cap, and the cap is towards the cap's side, the inner hole groove is formed in the inner ring of cap, and the inner hole groove and the cap exist gap cooperation, so can slide through, but the part of cap without the inner hole groove will be blocked by the cap, so when the operator rotates the hand wheel, the part of the nut will be embedded into the circular groove, and finally the nut will be blocked by the cap, which can prevent it from rotating and falling, so that the operator can not worry about rotating the hand wheel, and finally the use efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural diagram of the crane hook anti -drop safety device of the utility model;

[0016] Figure 2 It is the structural diagram of the crane hook anti -drop safety device of the utility model; Figure 1 The hook body, arc -shaped groove and mounting hole structure diagram of in;

[0017] Figure 3 It is the structural diagram of the crane hook anti -drop safety device of the utility model; Figure 1 The hook body, screw rod and guide rod structure diagram of in;

[0018] Figure 4 It is the structural diagram of the crane hook anti -drop safety device of the utility model; Figure 1 The opening groove, circular groove and top plate structure diagram of in;

[0019] Figure 5 For Figure 1 Structure diagram of middle screw rod, blocking cap and nut.

[0020] In the figure: 1, hook body; 2, arc-shaped groove; 3, mounting hole; 4, screw rod; 5, hand wheel; 6, guide rod; 7, nut; 8, blocking plate; 9, open slot; 10, circular groove; 11, inner hole groove; 12, blocking cap; 13, top plate; 14, rod body; 15, handle; 16, mounting head. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0022] Embodiment 1, refer to Figures 1 to 5 A crane hook anti-falling safety device, comprising a hook body 1, an arc-shaped groove 2 is formed on the hook body 1, two groups of screw rods 4 are rotatably connected in the arc-shaped groove 2, the same hand wheel 5 is installed on the two groups of screw rods 4, rotating the hand wheel 5 makes the screw rods 4 rotate and drive the nuts 7 on both sides to displace under the cooperation of the screw rods 4 and the guide rods 6, finally a part of the nuts 7 will be embedded into the circular grooves 10 to realize locking, a plurality of guide rods 6 are installed on the hook body 1, corresponding nuts 7 are slidably connected on the plurality of guide rods 6, the two groups of nuts 7 are threadedly connected with both ends of the screw rods 4, a blocking plate 8 is rotatably connected on the hook body 1, an open slot 9 is arranged on the blocking plate 8, two groups of circular grooves 10 are formed on the open slot 9, the overall process is that after placing the hoisted object on the hook body 1, the operator presses down the handle 15 to make the top plate 13 on the blocking plate 8 abut against one end of the hook body 1, at this time the circular grooves 10 on the open slot 9 of the blocking plate 8 are opposite to the positions of the nuts 7, then the operator rotates the hand wheel 5 with fingers to make the screw rods 4 rotate and drive the nuts 7 on both sides to displace under the cooperation of the screw rods 4 and the guide rods 6, finally a part of the nuts 7 will be embedded into the circular grooves 10 to realize locking, which is relatively simple and convenient for the operator, only need to rotate the hand wheel 5 to embed the nuts 7 into the circular grooves 10, which greatly improves the use efficiency.

[0023] In the embodiment, the two groups of screw rods 4 are fixed with the caps 12 at one end and the other end, the inner hole grooves 11 are arranged in the inner holes of the two groups of caps 7, the inner hole grooves 11 are gap matched with the caps 12, so that the caps 7 can slide through, but the part of the caps 7 without the inner hole grooves 11 will be blocked by the caps 12, the top plate 13 is arranged on the baffle 8, the position of the hook body 1 pressed by the top plate 13 is just able to make the caps 7 opposite the circular grooves 10, the two groups of rod bodies 14 are fixed on the baffle 8, the handle 15 is fixed between the two groups of rod bodies 14, the mounting head 16 is fixed on the hook body 1, the mounting hole 3 is arranged on the mounting head 16, and the anti-skid lines are arranged on the hand wheel 5.

[0024] The working principle of the embodiment is as follows: in use, after the hoisting object is placed on the hook body 1, the operator presses the handle 15 to make the top plate 13 on the baffle 8 press the one end of the hook body 1, at this time, the circular grooves 10 on the opening grooves 9 of the baffle 8 are opposite the positions of the caps 7, then the operator rotates the hand wheel 5 by fingers to make the screw rod 4 rotate and drive the caps 7 on the two sides to displace under the cooperation of the screw rod 4 and the guide rod 6, finally, a part of the caps 7 will be embedded into the circular grooves 10 to realize locking, the device is relatively simple and convenient for the operator, only needs to rotate the hand wheel 5 to make the caps 7 embedded into the circular grooves 10, greatly improves the use efficiency, and because the two ends of the screw rod 4 are provided with the caps 12, the side of the caps 7 faces the caps 12, the inner hole grooves 11 are arranged in the inner rings of the caps 7, the inner hole grooves 11 are gap matched with the caps 12, so that the caps 7 can slide through, but the part of the caps 7 without the inner hole grooves 11 will be blocked by the caps 12, so that the part of the caps 7 will be embedded into the circular grooves 10 when the operator rotates the hand wheel 5, finally, the caps 7 will be blocked by the caps 12.

[0025] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A crane hook anti-drop safety device comprising a hook body (1), characterized in that, The arc-shaped groove (2) is arranged on the hook body (1), two groups of screw rods (4) are rotatably connected in the arc-shaped groove (2), the same hand wheel (5) is arranged on the two groups of screw rods (4), a plurality of guide rods (6) are arranged on the hook body (1), a corresponding nut (7) is slidably connected on the plurality of guide rods (6), the two groups of nuts (7) are respectively threadedly connected with the two ends of the screw rod (4), the baffle (8) is rotatably connected on the hook body (1), the opening groove (9) is arranged on the baffle (8), and the two groups of circular grooves (10) are arranged on the opening groove (9).

2. A load hook safety device according to claim 1, characterised in that The end and the other end of the two groups of screw rods (4) are fixedly connected with the blocking caps (12), and the inner hole grooves (11) are arranged in the inner holes of the two groups of nuts (7).

3. A load hook safety device according to claim 1, characterised in that The top plate (13) is arranged on the baffle (8).

4. A load-latching safety device for a crane hook as defined in claim 1, wherein, The two groups of rod bodies (14) are fixedly connected on the baffle (8).

5. A load-latching safety device for a crane hook according to claim 4, characterised in that The handle (15) is fixedly connected between the two groups of rod bodies (14).

6. A load-latching safety device for a crane hook as defined in claim 1, wherein, The mounting head (16) is fixedly connected on the hook body (1), and the mounting hole (3) is arranged on the mounting head (16).

7. A load-latching safety device for a crane hook as defined in claim 1, wherein, The anti-skid lines are arranged on the hand wheel (5).

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