CN210236867U - Locking mechanical device that takes off of driving lifting hook hoist - Google Patents
Locking mechanical device that takes off of driving lifting hook hoist Download PDFInfo
- Publication number
- CN210236867U CN210236867U CN201921077543.8U CN201921077543U CN210236867U CN 210236867 U CN210236867 U CN 210236867U CN 201921077543 U CN201921077543 U CN 201921077543U CN 210236867 U CN210236867 U CN 210236867U
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- hook
- rod
- pull rod
- rotating shaft
- movable rod
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Abstract
The utility model relates to a hoisting accessory of hoisting equipment, in particular to an anti-loosening mechanical device of a crane hook hanger, which comprises a hook, wherein the hook comprises a hook neck and a hook head, an axle seat is arranged on the inner side surface of the hook neck, a rotating shaft is arranged in the axle seat, two connecting rods which are symmetrical relative to the axle seat are fixed on the rotating shaft, one end of the rotating shaft is provided with a counterweight pull rod, the connecting rods are connected with a movable rod through a hinge shaft, and the movable rod end rod of the movable rod is contacted with the hook head during locking; the outer side surface of the hook neck is provided with a pin seat, and a movable positioning bayonet lock is inserted into the pin seat and used for fixing the counterweight pull rod. The utility model discloses a pulling counter weight pull rod from top to bottom can realize opening and locking of lifting hook, and structural design is reasonable, and the suitability is strong, and the workman operates laborsaving convenient more.
Description
(I) technical field
The utility model relates to a hoisting equipment's hoisting accessory specifically is a locking take off mechanical device of taking a crane hook hoist.
(II) background of the invention
At present, the anti-disengaging device of the crane hook is mostly used for fixing a pressing plate at the neck of the hook by using a spring clamp and a thin screw rod, when the lifting appliance is disassembled, the anti-disengaging pressing plate device cannot meet the automatic opening requirement, and an operator presses a steel plate by using a thumb and then takes out a steel wire rope from the hook opening in the process of disassembling the lifting appliance. In the dismounting process, a person is too close to the lifting appliance, and particularly, in the dismounting process of the large-scale lifting hook, the lifting hook is easy to topple over to hurt the operator; during disassembly, the hands of the worker squeeze and push the pressing plate, so that the hands of the worker are easily squeezed and injured; the pressing plate is manually pushed, so that the operation efficiency is low. The condition that lifting hook anticreep device is malfunctioning is often found in daily inspection, and some clamp plates seriously warp, and some spring inefficacy or damage lose the anticreep effect, lead to the hoist cable unhook, cause the accident that the heavy object falls, casualties. Therefore, an anti-drop mechanical device of a crane hook with more stable structure, convenient use, time saving and labor saving is needed.
Disclosure of the invention
For overcoming the problem that exists among the prior art, the utility model provides a locking mechanical device that takes off of driving hook hoist adopts link mechanism, through pulling counter weight pull rod from top to bottom, realizes opening and locking of lifting hook.
The utility model discloses a realize through following technical scheme:
a mechanical anti-loosening device of a crane hook lifting appliance comprises a lifting hook, wherein the lifting hook comprises a hook neck and a lifting hook head, an axle seat is arranged on the inner side surface of the hook neck, a rotating shaft is arranged in the axle seat, two connecting rods which are symmetrical relative to the axle seat are fixed on the rotating shaft, a counterweight pull rod is arranged at one end of the rotating shaft, the connecting rods are connected with a movable rod through hinge shafts, the contact surface of the connecting rods and the movable rod is an inclined plane, the movable rod is a U-shaped structural rod, and a movable rod end rod of the movable rod is in contact with the lifting hook head during locking; the outer side surface of the hook neck is provided with a pin seat, and a movable positioning bayonet lock is inserted into the pin seat.
Preferably, the connection of the rotating shaft and the connecting rod and the connection of the rotating shaft and the counterweight pull rod are welded or in threaded connection.
Preferably, the weight of the counterweight pull rod is greater than the combined weight of the connecting rod, the hinge shaft and the movable rod.
Preferably, the end part of the counterweight pull rod is provided with knurls.
Preferably, the length of the knurl at the end part of the counterweight pull rod is 1/3-1/2 of the length of the counterweight pull rod.
Preferably, the counterweight pull rod is provided with a pin hole with the axis parallel to the rotating shaft, and the diameter of the pin hole is the same as the inner diameter of the pin seat and is larger than the diameter of the positioning bayonet lock.
The utility model has the advantages that:
the utility model provides an anti-loose mechanical device of a crane hook sling, which can open or lock the hook by lifting or pulling down a counterweight pull rod, and the anti-loose device is two parts which are hinged, and can be suitable for the access of thicker lifting ropes by upward folding; the counterweight pull rod is provided with a pin hole, and the counterweight pull rod can be fixed in the pin seat through the positioning bayonet lock so as to prevent the counterweight pull rod from falling down to lock the lifting hook. The utility model relates to a rationally, the suitability is strong, and the workman operates more laborsaving convenient.
(IV) description of the drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the open state of the present invention.
Fig. 2 is a left side view structural diagram of the open state of the present invention.
Fig. 3 is a schematic view of the open state overlooking structure of the present invention.
Fig. 4 is a schematic view of the locking state of the present invention.
In the figure, 1-lifting hook, 11-lifting hook neck, 12-lifting hook head, 2-movable rod, 21-movable rod end rod, 3-hinge shaft, 4-connecting rod, 5-rotating shaft, 6-shaft seat, 7-counterweight pull rod, 8-positioning clamping pin and 9-pin seat.
(V) detailed description of the preferred embodiments
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, the present embodiment is a locking mechanism for a crane hook spreader. The lifting hook comprises a lifting hook, wherein the lifting hook 1 comprises a lifting hook neck 11 and a lifting hook head 12, a shaft seat 6 is arranged on the inner side face of the lifting hook neck, a rotating shaft 5 is arranged in the shaft seat 6, the rotating shaft 5 is symmetrical about two ends of the shaft seat 6, and the rotating shaft can freely rotate in the shaft seat 6. Two connecting rods 4 which are symmetrical about the shaft seat 6 are fixed on the rotating shaft 5, and the connecting rods 4 are fixed on the rotating shaft 5 through welding or threaded connection and do not rotate relative to the rotating shaft 5. One end of the rotating shaft 5 is provided with a balance weight pull rod 7, and the balance weight pull rod 7 is also fixed on the rotating shaft 5 through threaded connection or welding, so that the rotating shaft 5 can rotate in the shaft seat 6 by pulling the balance weight pull rod 7 up and down, and simultaneously the connecting rod 4 is driven to rotate around the rotating shaft 5 in the same direction at the same angle. The weight of the balance weight pull rod 7 is larger than the weight of the combination of the connecting rod, the hinge shaft and the movable rod, so that the end rod 21 of the movable rod can always keep a pressing state with the hook head 12 when the hook is locked, and the balance weight pull rod cannot be easily loosened. Connecting rod 4 is connected with movable rod 2 through hinge pin 3, connecting rod 4 is the inclined plane with 2 contact surfaces of movable rod, and the contact inclined plane angle is complementary, and movable rod 2 can only one direction rotate for connecting rod 4 at parallel position like this, and another direction rotates the card and dies, has guaranteed the stability that the lifting hook locking takes off. The movable rod 2 is a U-shaped structural rod, and when the movable rod 2 is locked, the movable rod end rod 21 of the movable rod 2 is in contact with the hook head 12, and the hook is locked by the downward pulling force and the pressure generated by the gravity of the counterweight pull rod 7; a pin seat 9 is arranged on the outer side surface of the hook neck, and a positioning bayonet pin 8 is inserted in the pin seat 9 when the hook is in a locking state; the counterweight pull rod 7 is provided with a pin hole, when the lifting hook is in an opening state, the positioning bayonet lock 8 is taken out from the pin seat 9 and inserted into the pin hole on the counterweight pull rod 7, and then the tail part of the positioning bayonet lock 8 is inserted into the pin seat 9, so that the counterweight pull rod 7 is fixed and cannot fall down under the action of gravity to lock the lifting hook. The end part of the counterweight pull rod 7 is provided with the knurls, the length of the knurls is 1/3-1/2 of the length of the counterweight pull rod 7, and the knurls are used for increasing the friction force between a hand and the counterweight pull rod 7 and preventing the hand from sliding out.
The working process is as follows: when the lifting hook is not used or is opened, the positioning bayonet lock 8 is inserted into a pin hole on the counterweight pull rod 7, the counterweight pull rod 7 is lifted, then the tail part of the positioning bayonet lock 8 is aligned with a pin seat 9 hole and is inserted into the hole, so that the counterweight pull rod 7 is fixed, the movable rod end rod 21 is not contacted with the lifting hook head 12 any more, and the movable rod 2 is rotated outwards to take out the lifting rope; when the lifting hook needs to be locked, the lifting rope is placed into the lifting hook, the positioning clamping pin 8 is pulled out, the counterweight pull rod 7 is pressed downwards until the movable rod end rod 21 is in contact with the lifting hook head 12, the lifting hook is locked by the pressure generated by the downward pulling force and the gravity of the counterweight pull rod 7, and the positioning clamping pin 8 is inserted into the pin seat 9 to prevent loss.
In the description of the present invention, the position or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", etc. is the position or positional relationship shown based on the drawings (as in the present invention, the extending direction of the split hydraulic ram 2 is the front, and the contracting direction is the rear), and it is only for describing the present invention, but not for requiring the present invention to be constructed or operated in a specific position, and therefore, it is not understood as a limitation to the present invention. The terms "connected" and "connected" in the present invention are to be understood in a broad sense, and may be connected or detachably connected, for example; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.
The foregoing is a preferred embodiment of the present invention, and the description of the specific embodiments is only for better understanding of the idea of the present invention. For a person skilled in the art, it is obvious that several modifications and equivalent substitutions can be made according to the principles of the present invention, and these modifications and equivalent substitutions are also considered to fall within the scope of the present invention.
Claims (6)
1. The utility model provides a locking mechanical device that takes off of driving hook hoist, includes lifting hook (1), and lifting hook (1) contains lifting hook neck (11) and lifting hook head (12), its characterized in that: an axle seat (6) is arranged on the inner side surface of the hook neck (11), a rotating shaft (5) is arranged in the axle seat (6), two connecting rods (4) which are symmetrical relative to the axle seat (6) are fixed on the rotating shaft (5), a counterweight pull rod (7) is arranged at one end of the rotating shaft (5), the connecting rods (4) are connected with a movable rod (2) through a hinge shaft (3), the contact surface of the connecting rods (4) and the movable rod (2) is an inclined plane, the movable rod (2) is a U-shaped structural rod, and a movable rod end rod (21) of the movable rod (2) is in contact with the hook head (12) during locking; the outer side surface of the hook neck (11) is provided with a pin seat (9), and a movable positioning bayonet lock (8) is inserted in the pin seat (9).
2. The anti-release mechanical device of a crane hook spreader as claimed in claim 1, wherein: the rotating shaft (5) is connected with the connecting rod (4) and the counterweight pull rod (7) by welding or threads.
3. The anti-release mechanical device of a crane hook spreader as claimed in claim 1, wherein: the weight of the balance weight pull rod (7) is greater than the combined weight of the connecting rod (4), the hinge shaft (3) and the movable rod (2).
4. The anti-release mechanical device of a crane hook spreader as claimed in claim 1, wherein: the end part of the counterweight pull rod (7) is provided with knurls.
5. A mechanical anti-release device for a crane hook spreader as claimed in claim 1 or claim 4, wherein: the length of the knurls at the end part of the counterweight pull rod (7) is 1/3-1/2 of the length of the counterweight pull rod (7).
6. The anti-release mechanical device of a crane hook spreader as claimed in claim 1, wherein: the counter weight pull rod (7) is provided with a pin hole with the axis parallel to the rotating shaft (5), and the diameter of the pin hole is the same as that of the pin seat (9) and is larger than that of the positioning bayonet lock (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921077543.8U CN210236867U (en) | 2019-07-11 | 2019-07-11 | Locking mechanical device that takes off of driving lifting hook hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921077543.8U CN210236867U (en) | 2019-07-11 | 2019-07-11 | Locking mechanical device that takes off of driving lifting hook hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210236867U true CN210236867U (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921077543.8U Active CN210236867U (en) | 2019-07-11 | 2019-07-11 | Locking mechanical device that takes off of driving lifting hook hoist |
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| CN (1) | CN210236867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116812741A (en) * | 2023-08-30 | 2023-09-29 | 福建省特种设备检验研究院泉州分院 | Intelligent unhooking prevention device for crane hook |
-
2019
- 2019-07-11 CN CN201921077543.8U patent/CN210236867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116812741A (en) * | 2023-08-30 | 2023-09-29 | 福建省特种设备检验研究院泉州分院 | Intelligent unhooking prevention device for crane hook |
| CN116812741B (en) * | 2023-08-30 | 2023-11-28 | 福建省特种设备检验研究院泉州分院 | Intelligent unhooking prevention device for crane hook |
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