Anti-unhooking device for a crane hook

Abstract

The utility model belongs to the technical field of steelmaking equipment, disclose a kind of crane hook anti-unhooking device. Anti-unhooking device can be detachably connected with crane hook setting, crane hook is arranged along horizontal direction, crane hook is provided with crane hook socket on crane hook, and the opening of crane hook socket is set as crane hook opening, to prevent the weight hoisted by crane hook from disengaging from hook when moving. The device can be detachably connected with crane hook, effectively prevent the weight hoisted by crane hook from disengaging from hook when moving, and enhance the safety of operation. The cylindrical side of anti-unhooking connecting rod can be engaged with crane hook socket and connected, to ensure that the hoisting device is firmly clamped in the hook socket and is not easy to fall off.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of steelmaking equipment, especially a crane hook anti-unhooking device. BACKGROUND

[0002] The crane hook is an important component of the crane, which is used to connect and suspend heavy objects, and realize the lifting, transportation and positioning of the heavy objects. In the fields of industrial production, construction, port loading and unloading, the crane hook is widely used, and its safety and reliability are directly related to the production efficiency and personnel safety. The old crane is simple in design in terms of anti-unhooking, and it is urgent to design a new anti-unhooking device to improve it. However, the old crane is relatively simple in design, small in strength and easy to deform, which loses the anti-unhooking function. There is only one anti-unhooking plate and a hinge device, which has a large safety hazard, and the actual application effect is very poor. In the actual operation process, safety accidents may occur due to the heavy object moving away from the hook, which not only causes the interruption of production, but also may cause serious damage to personnel and equipment.

[0003] Therefore, it is urgent to design a new anti-unhooking device to improve the shortcomings of the old crane in terms of anti-unhooking and improve the safety and reliability of the operation. SUMMARY

[0004] The utility model aims at overcoming the insufficient in prior art, provide a crane hook anti-unhooking device.

[0005] The utility model solves the technical scheme that it adopts:

[0006] A crane hook anti-unhooking device, the anti-unhooking device can be detachably connected with the crane hook, the crane hook is arranged along the horizontal direction, the crane hook is provided with a crane hook socket on the crane hook, the opening of the crane hook socket is arranged as a crane hook opening, which prevents the heavy object lifted by the crane hook from moving away from the hook, the device comprises a shaft, a support frame, a connecting counterweight, an anti-unhooking connecting rod and a locking ring, the shaft is connected with the locking ring, the shaft, the connecting counterweight and the anti-unhooking connecting rod are connected with the support frame;

[0007] The locking ring is arranged along the horizontal direction, the locking ring can be coaxially and closely connected with the hook neck of the crane hook, the shafts are symmetrically and fixedly connected on the longitudinal two sides of the outer surface of the locking ring along the horizontal direction, the shafts are arranged along the longitudinal direction, and the two shafts are arranged along the longitudinal center line in a straight line;

[0008] The support frame and the shaft are movably connected and arranged together, the support frame can swing back and forth along the horizontal direction around the shaft, and then the opening of the crane hook can be opened and closed;

[0009] The support frame comprises a first support part and a second support part, the first support part is arranged upwardly inclined along the horizontal direction, the second support part is arranged downwardly inclined along the horizontal direction, the top of the first support part is connected with the top of the second support part, and the top of the first support part and the top of the second support part are movably hinged together with the rotating shaft, the length of the first support part along the horizontal direction is less than the length of the second support part along the horizontal direction;

[0010] The connecting counterweight is arranged along the longitudinal direction, the longitudinal two ends of the connecting counterweight are fixedly connected with the bottoms of the two second support parts, and the two second support parts are connected together by the connecting counterweight; the anti-unhooking connecting rod is arranged along the longitudinal direction, the longitudinal two ends of the anti-unhooking connecting rod are fixedly connected with the bottoms of the two first support parts, and the two first support parts are connected together by the anti-unhooking connecting rod;

[0011] The longitudinal center lines of the two rotating shafts, the longitudinal center line of the connecting counterweight and the longitudinal center line of the anti-unhooking connecting rod are arranged in parallel;

[0012] The anti-unhooking connecting rod can be detachably connected with the inner surface of the crane hook close to the opening of the crane hook, and the anti-unhooking connecting rod is detachably arranged in the opening of the crane hook.

[0013] Further, the crane hook anti-unhooking device further comprises a structure reinforcing rod, the structure reinforcing rod is arranged along the horizontal direction, one end of the structure reinforcing rod is fixedly connected with the first support part, and the other end of the structure reinforcing rod is fixedly connected with the second support part.

[0014] Further, the connecting angle between the first support part and the second support part is 60°.

[0015] Further, the first support part and the second support part in the crane hook anti-unhooking device are connected in a "7" shape.

[0016] Further, the mass ratio of the anti-unhooking connecting rod to the connecting counterweight is 1:3.

[0017] Further, the crane hook anti-unhooking device further comprises an anti-skid pad 8, which is arranged between the locking ring and the crane hook.

[0018] The advantages and positive effects obtained by the utility model are as follows:

[0019] 1. The device can be detachably connected with the crane hook, effectively prevents the heavy object hoisted by the crane hook from disengaging from the hook during movement, and enhances the safety of operation. The cylindrical side surface of the anti-unhooking connecting rod can be connected with the hook socket of the crane, ensuring that the hoisted device is firmly clamped in the hook socket and is not easy to fall off.

[0020] 2. The position of the connecting counterweight can be adjusted to further ensure that the hoisted device is not easy to fall off, thereby reducing the interruption of operation caused by the falling of the heavy object and improving the hoisting efficiency. The structure is simple, expandable and widely applicable to crane hooks.

[0021] 3. In use, the anti-unhooking device is detachably connected with the crane hook, then the connecting counterweight is lifted to make the anti-unhooking connecting rod run downward, thereby opening the opening of the crane hook, and then the connecting member such as steel wire rope of the device to be hoisted is connected with the crane hook, then the connecting counterweight is loosened and moves downward under the action of gravity, thereby making the anti-unhooking connecting rod move upward until it is tightly pressed on the inner surface of the crane hook, and the connecting member such as steel wire rope of the device to be hoisted is arranged in the hook socket of the crane, and then hoisting work is carried out.

[0022] The device can be detachably connected with the crane hook, effectively prevents the heavy object hoisted by the crane hook from disengaging from the hook during movement, and enhances the safety of operation. The anti-unhooking connecting rod can be connected with the hook socket of the crane and is always arranged in the hook socket, ensuring that the hoisted device is firmly clamped in the hook socket and is not easy to fall off. The arrangement of the connecting counterweight ensures that the hoisted device is not easy to fall off, thereby reducing the interruption of operation caused by the falling of the heavy object and improving the hoisting efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural connection front view of the utility model;

[0024] Figure 2 is another structural connection front view of the utility model;

[0025] Figure 3 is a top view of the locking device part structure of the utility model. DETAILED DESCRIPTION

[0026] The utility model will be further described in combination with specific embodiments, the following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

[0027] The raw materials used in the utility model, such as no special instruction, are all conventional market products, the method used in the utility model, such as no special instruction, is all conventional method in the field, the mass of each substance used in the utility model is all conventional use mass.

[0028] A crane hook anti-unhooking device, as shown in Figure 1 The anti-unhooking device can be detachably connected with the crane hook 5, the crane hook is arranged in the horizontal direction, the crane hook is provided with a crane hook socket 51, and the opening of the crane hook socket is provided with a crane hook opening 52; the device comprises a rotating shaft 1, a support frame 2, a connecting counterweight 3, an anti-unhooking connecting rod 4 and a locking ring 7; the rotating shaft is connected with the locking ring; the rotating shaft, the connecting counterweight and the anti-unhooking connecting rod are connected with the support frame.

[0029] The locking ring is arranged in the horizontal direction, and the locking ring can be coaxially and tightly sleeved with the hook neck of the crane hook; the rotating shafts are symmetrically and fixedly arranged on the outer surfaces of the longitudinal sides of the locking ring in the horizontal direction; the rotating shafts are arranged in the longitudinal direction, and the two rotating shafts are arranged in the same line along the center line in the longitudinal direction.

[0030] The support frame and the rotating shaft are movably hinged and arranged together, the support frame can swing back and forth along the horizontal direction around the rotating shaft, so as to open and close the opening of the crane hook; the support frame can improve the stability and structural strength of the device.

[0031] The support frame comprises a first support part 2-1 and a second support part 2-2; the first support part is arranged to be inclined upward in the horizontal direction; the second support part is arranged to be inclined downward in the horizontal direction; the top of the first support part is connected with the top of the second support part; the top of the first support part and the top of the second support part are movably hinged with the rotating shaft; the length of the first support part in the horizontal direction is smaller than the length of the second support part in the horizontal direction.

[0032] The connecting counterweight is arranged in the longitudinal direction, and the longitudinal ends of the connecting counterweight are fixedly connected with the bottoms of the two second support parts; the connecting counterweight connects the two second support parts together; the anti-unhooking connecting rod is arranged in the longitudinal direction, and the longitudinal ends of the anti-unhooking connecting rod are fixedly connected with the bottoms of the two first support parts; the anti-unhooking connecting rod connects the two first support parts together.

[0033] The center line of the two rotating shafts in the longitudinal direction, the center line of the connecting counterweight in the longitudinal direction and the center line of the anti-unhooking connecting rod in the longitudinal direction are arranged in parallel.

[0034] The anti-unhooking connecting rod can be detachably connected with the inner surface of the crane hook close to the opening of the crane hook, and the anti-unhooking connecting rod is detachably arranged in the crane hook socket, so that the connecting member such as a steel wire in the crane hook can be taken out or locked in the crane hook, thereby avoiding the connecting member from sliding out of the crane hook, and the weight of the connecting counterweight is more than 3 times the weight of the anti-unhooking connecting rod, so that the connecting counterweight plays the effect of counterweight by its own weight, and the connecting counterweight automatically falls downward under the action of gravity during use of the device, thereby enabling the anti-unhooking connecting rod to be automatically and tightly pressed on the inner surface of the crane hook under the action of gravity during lifting by the crane, so as to avoid the opening of the crane hook from being widened and the steel wire from falling off.

[0035] In use, the anti-unhooking device is detachably connected with the crane hook, then the connecting counterweight is lifted by the worker to make the anti-unhooking connecting rod run downward, thereby opening the crane hook, then the connecting member such as a steel wire of the device to be lifted is connected with the crane hook, then the connecting counterweight is released by the worker, and the connecting counterweight moves downward under the action of gravity, thereby making the anti-unhooking connecting rod move upward until being tightly pressed on the inner surface of the crane hook, so that the connecting member such as a steel wire of the device to be lifted is arranged in the crane hook socket, and then lifting work is performed.

[0036] The device can be detachably connected with the crane hook, effectively prevents the heavy object lifted by the crane hook from falling off the crane hook during movement, and enhances the safety of operation. The anti-unhooking connecting rod can be clamped and connected with the crane hook socket, and is always arranged in the crane hook socket, so that the device to be lifted is firmly clamped in the crane hook socket and is not easy to fall off. The connecting counterweight is arranged, so that the device to be lifted is not easy to fall off, thereby reducing the interruption of operation caused by falling of the heavy object and improving the lifting efficiency.

[0037] In the embodiment, as shown in Figure 2 The structure reinforcing rod is arranged along the horizontal direction, a horizontal one end of the structure reinforcing rod is fixedly and connectively arranged with the first supporting part, and a horizontal other end of the structure reinforcing rod is fixedly and connectively arranged with the second supporting part, so that the overall stability and structural strength of the device are improved, the device is not easy to be damaged, and the service life is improved.

[0038] In the embodiment, the connecting angle between the first supporting part and the second supporting part is 60°, so that the anti-unhooking effect of the device is ensured, the connecting member such as a steel wire is not easy to fall off, the lifting effect is ensured, and the safety of lifting is improved.

[0039] In the embodiment, as shown in Figure 2 The first supporting part and the second supporting part of the crane hook anti-unhooking device are connected in a "7" shape, which can improve the stability of the device, make the device more stable during use, improve the structural strength and prevent the device from being easily unhooked.

[0040] Preferably, the mass ratio of the anti-unhooking connecting rod and the connecting counterweight is 1:3.

[0041] In the embodiment, as shown in Figure 3 The crane hook anti-unhooking device further comprises a non-slip pad 8, which is installed between the locking ring and the crane hook, and can improve the anti-falling strength of the device.

[0042] Although the embodiments of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the utility model and the appended claims, therefore, the scope of the utility model is not limited to the content disclosed in the embodiments.

Claims

1. A crane hook trip prevention device, characterized by: The anti-unhooking device can be detachably connected with the crane hook, the crane hook is arranged in the horizontal direction, the crane hook is provided with a crane hook socket, and the opening of the crane hook socket is arranged as a crane hook opening to prevent the weight lifted by the crane hook from being separated from the hook during movement. The locking ring is arranged in the horizontal direction, and the locking ring can be coaxially and tightly connected with the hook neck of the crane hook. The two ends of the locking ring are symmetrically arranged with the shafts in the horizontal direction. The support frame and the shafts are movably connected and arranged together, and the support frame can swing back and forth in the horizontal direction around the shafts, thereby opening and closing the opening of the crane hook. The support frame includes a first support part and a second support part, the first support part is arranged upwardly inclined in the horizontal direction, the second support part is arranged downwardly inclined in the horizontal direction, the top of the first support part is connected with the top of the second support part, and the top of the first support part and the top of the second support part are movably connected with the shafts. The connecting counterweight is arranged in the longitudinal direction, and the two ends of the connecting counterweight are fixedly connected with the bottoms of the two second support parts in the longitudinal direction, and the connecting counterweight connects the two second support parts together. The two shafts, the connecting counterweight, and the anti-unhooking connecting rod are arranged in parallel along the longitudinal direction. The anti-unhooking connecting rod can be detachably connected with the inner surface of the crane hook near the crane hook opening, and the anti-unhooking connecting rod is detachably arranged in the crane hook socket.

2. Crane hook trip device according to claim 1, characterized in that: The crane hook anti-unhooking device further includes a structure reinforcing rod, which is arranged in the horizontal direction, and the horizontal one end of the structure reinforcing rod is fixedly connected with the first support part, and the horizontal other end of the structure reinforcing rod is fixedly connected with the second support part.

3. Crane hook trip device according to claim 1, characterized in that: The connection angle between the first support part and the second support part is 60°.

4. Crane hook trip device according to claim 1, characterized in that: The first support part and the second support part of the crane hook anti-unhooking device are connected in a "7" shape.

5. Crane hook trip according to claim 4, characterized in that: The mass ratio of the anti-unhooking connecting rod to the connecting counterweight is 1:

3.

6. The crane hook trip device of claim 1, wherein: The crane hook anti-unhooking device further includes an anti-skid pad, which is installed between the locking ring and the crane hook.

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