Automatic detaching lifting hook structure

Abstract

The utility model relates to the technical field of space lifting objects, and discloses an automatic detaching lifting hook structure which comprises a bearing plate, a movable limiting block, a driving air cylinder and a clamping hook piece, the movable limiting block is rotationally connected to the middle of the bearing plate, and the clamping hook piece and the driving air cylinder are rotationally connected to the two sides of the lower end of the bearing plate respectively. The inner side of one end of the movable limiting block is provided with a clamping groove part, the other end of the movable limiting block is connected with the output end of the driving air cylinder, the top end of the clamping hook piece is provided with a hook block part matched with the clamping groove part, and the supporting force of the bearing plate on the clamping hook piece is parallel to the pulling force of a hung object on the clamping hook piece. And the clamping hook piece is arranged close to the hook block part under the pulling force of a hung object.

Description

TECHNICAL FIELD

[0001] The utility model relates to space hoisting object technical field especially relates to a kind of automatic unhooking hook structure. BACKGROUND

[0002] Now the unhooking hook that can unload object in the air commonly used in market, whole basically is mainly with simple mechanical structure, and its unhooking mode is mainly to use external force to exert pull on the pull rope on unhooking hook, make the main movable part of unhooking hook produce certain inclination, to make the object lifted drop down.

[0003] This unhooking hook often needs person to pull rope cooperation operation when using, if in some relatively dangerous place operation will be limited. Or in other places needing to use to lift the object lifted and then do free-fall motion, unhooking hook will be affected by the horizontal component force produced in the moment when rope is pulled, to make the object lifted produce sway, to increase unnecessary security risk and influence the stability of object falling. UTILITARIAN CONTENT

[0004] The utility model solves the technical problem of overcoming the deficiency of prior art, and provides an automatic unhooking hook structure, which does not need to manually pull the unhooking hook, and is safer and more stable to use.

[0005] The technical scheme of the utility model provides an automatic unhooking hook structure, which comprises a bearing plate, a movable limiting block, a driving cylinder and a clamping hook piece, the movable limiting block is rotationally connected to the middle part of the bearing plate, the clamping hook piece and the driving cylinder are rotationally connected to the lower end of the bearing plate on both sides, respectively, a clamping groove part is arranged on the inner side of one end of the movable limiting block, the other end is connected to the output end of the driving cylinder, a hook block part that is matched with the clamping groove part is arranged at the top end of the clamping hook piece, the supporting force of the bearing plate on the clamping hook piece is parallel to the pulling force of the hanging object of the clamping hook piece, and the pulling force of the hanging object of the clamping hook piece is arranged close to the hook block part.

[0006] From the above scheme can be known, the load plate is used for limiting the hook piece through the movable limiting block, the hook piece is used for hanging heavy objects, the driving cylinder is used for driving the relative rotation between the movable limiting block and the load plate, drives the clamping groove part to do lifting movement to realize the limiting and unlimiting of the hook piece, the center of the pulling force of the hook piece is not on the same straight line with the center of the supporting force of the hook piece, the eccentric design facilitates the relative rotation between the hook block and the load plate after the unlimiting of the hook block to realize the automatic unloading of the hanging object, the center of the pulling force of the hook piece is close to the hook block after the driving cylinder drives the hook block and the clamping groove part to be unlocked, the relative rotation of the hook piece on the load plate is driven by the weight of the hanging object, thereby realizing the automatic unloading of the hanging object, the movement of the movable limiting block is controlled by the driving cylinder, thereby indirectly limiting the folding or unfolding of the connected parts of the hook piece. The assembly is simple in structure and convenient to operate. In the use process, it is no longer necessary to pull the unloading rope manually, which eliminates the hidden danger that the object may hit the person. At the same time, because the human influence on the object is eliminated, the unloading of the object can be more stable.

[0007] The movable limiting block is rotatably connected to the load plate through a first connecting assembly, the hook piece is rotatably connected to the load plate through a second connecting assembly, and the fixed end of the driving cylinder is rotatably connected to the load plate through a third connecting assembly. The first connecting assembly, the second connecting assembly and the third connecting assembly respectively include a bolt, a slotted nut, a latch and a gasket. The movable limiting block is provided with a slot, one end of the bolt extends out of the slot and is connected to the slotted nut, the bolt is provided with a hole, the gasket is arranged between the bolt and the slotted nut, and the outer side of the slotted nut is annularly arranged with a plurality of limiting slots. The latch is inserted into the hole and the limiting slot. As can be seen, the first connecting assembly, the second connecting assembly and the third connecting assembly facilitate the realization of rotary connection, the latch is inserted into the hole and the limiting slot to realize limiting, and this kind of connection mode can ensure that the nut will not fall off, and also can ensure that other parts can rotate around the bolt.

[0008] The end of the movable limiting block is provided with a slot, and the movable limiting block is provided with a fastener on both sides of the slot. The output shaft of the driving cylinder is connected to the fastener through a joint bearing.

[0009] The load plate is provided with a receiving opening part matched with the hook piece, the bottom end of the hook piece is provided with a connecting block rotatably connected to the load plate, and the inner side of the hook piece is provided with a hanging arc part. As can be seen, the hook piece is used for hanging objects through the hanging arc part.

[0010] The middle part of the movable limiting block is provided with a penetrating groove matched with the load bearing plate.

[0011] The load bearing plate is provided with a lifting hole, and the load bearing plate is hung on an external lifting hook through the lifting hole. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the utility model;

[0013] Figure 2 is a front view of the utility model;

[0014] Figure 3 is an explosion view of the utility model;

[0015] Figure 4 is a structural schematic diagram of automatic dismounting of the hanging object;

[0016] Figure 5 is a structural schematic diagram of the utility model in use. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0018] As shown in Figures 1 to 5 the utility model discloses an automatic dismounting lifting hook structure, including load bearing plate 1, movable limiting block 2, drive cylinder 3 and card hook spare 4, movable limiting block 2 is rotatably connected in the middle part of load bearing plate 1, card hook spare 4 is rotatably connected with drive cylinder 3 respectively in load bearing plate 1 lower end both sides, movable limiting block 2 one end inboard is provided with the card slot part 21, and the other end is connected with the output end of drive cylinder 3, and the top of card hook spare 4 is provided with the hook block part 41 matched with the card slot part 21, and the support force of load bearing plate 1 to card hook spare 4 is parallel with the tension of the hanging object to card hook spare 4, and the tension of the hanging object to card hook spare 4 is arranged close to the hook block part 41.

[0019] In the embodiment, the bottom fixed end of the driving cylinder 3 is rotationally connected with the load bearing plate 1, the rotationally connecting structure is same as the first connecting assembly, a gas pipe quick connector is connected with the driving cylinder 3, the gas pipe 9 is connected with the gas pipe quick connector to control the driving cylinder 3, the hook block part 41 of the hook part 4 is arranged outside the load bearing plate 1, so that the hanging object drives the hook part 4 to rotate relative to the supporting force point by the gravity, thereby realizing automatic unloading of the hanging object, the load center position of the load bearing plate 1 and the hanging object load center position of the hook part 4 have a certain distance in the horizontal direction, so that the hanging object drives the hook part 4 to rotate by the gravity without locking of the movable limiting block 2, thereby making the hanging object fall.

[0020] The load bearing plate 1 is provided with a lifting hole 11, and the load bearing plate 1 is hung on the external lifting hook 5 through the lifting hole 11. The utility model can be used directly by lifting the external lifting hook 5. In the embodiment, the lifting hole 11 is arranged at the upper end of the load bearing plate 1.

[0021] The movable limiting block 2 is rotationally connected with the load bearing plate 1 through the first connecting assembly, the hook part 4 is rotationally connected with the load bearing plate through the second connecting assembly, the fixed end of the driving cylinder 3 is rotationally connected with the load bearing plate 1 through the third connecting assembly, the first connecting assembly, the second connecting assembly and the third connecting assembly respectively include a bolt 61, a slotted nut 62, a bolt pin 63 and a gasket 64, the movable limiting block 2 is provided with a slot 23, one end of the bolt 61 extends out of the slot 23 and is connected with the slotted nut 62, the bolt 61 is provided with a hole 611, the gasket 64 is arranged between the bolt 61 and the slotted nut 62, a plurality of limiting slots 621 are arranged in an annular array outside the slotted nut 62, and the bolt pin 63 is inserted into the hole 611 and the limiting slot 621. In the embodiment, the limiting slot 621 is arranged in a slot.

[0022] The end of the movable limiting block 2 is provided with a slot 22, the movable limiting block 2 is provided with a fastener on both sides of the slot 22, and the output shaft of the driving cylinder 3 is connected with the fastener through a joint bearing 10.

[0023] The load bearing plate 1 is provided with a containing opening part 12 matched with the hook part 4, the bottom end of the hook part 4 is provided with a connecting block 42 rotationally connected with the load bearing plate 1, the inner side of the hook part 4 is provided with a hanging arc part 43, and the hanging arc part 43 receives the pulling force of the weight and is parallel to the supporting force center of the hook part 4.

[0024] The movable limiting block 2 is provided with a through groove 24 matched with the load bearing plate 1.

[0025] The working process of the utility model is as follows: the movable limiting block 2 is pulled down by the contraction of the driving cylinder 3, ensuring that the clamping hook 4 can normally move, then the hanging object is hung on the clamping hook 4 through the connecting hook 7, the clamping hook 4 is then adjusted, when locked, the driving cylinder 3 drives the output shaft to extend and drive the right end of the movable limiting block 2 to push upward, the movable limiting block 2 rotates counterclockwise on the load bearing plate 1, the left end of the movable limiting block 2 moves downward, the clamping hook 4 is locked by the clamping groove part 21 and the hook block part 41, and the locking of the hanging object is realized.

[0026] When disassembled, the driving cylinder 3 drives the output shaft to contract and drive the right end of the movable limiting block 2 to move downward, the movable limiting block 2 rotates clockwise on the load bearing plate 1, the left end of the movable limiting block 2 moves upward, the movable limiting block 2 is away from the clamping hook 4, the clamping groove part 21 releases the locking of the hook block part 41, since the supporting force of the load bearing plate 1 on the clamping hook 4 is parallel to the pulling force of the hanging object on the clamping hook 4, the pulling force of the hanging object on the clamping hook 4 is left, the hanging object drives the clamping hook 4 to rotate counterclockwise through its own gravity, and the automatic disassembly of the hanging object is realized.

[0027] Finally, it needs to be emphasized that the above description is not used to limit the utility model, for the person skilled in the art, the utility model can have various changes and changes, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic unhooking hook structure, characterized by: Including the load plate (1), the movable limiting block (2), the drive cylinder (3) and the hook piece (4), the movable limiting block (2) is rotatably connected in the middle of the load plate (1), the hook piece (4) and the drive cylinder (3) are rotatably connected on both sides of the lower end of the load plate (1), one end of the movable limiting block (2) is provided with a clamping groove (21), the other end is connected with the output end of the drive cylinder (3), the top end of the hook piece (4) is provided with a hook block (41) matched with the clamping groove (21), the supporting force of the load plate (1) on the hook piece (4) is parallel to the tension of the hanging object of the hook piece (4), and the tension of the hanging object of the hook piece (4) is arranged close to the hook block (41).

2. An automatic unhooking hook structure according to claim 1, characterized in that: The movable limiting block (2) is rotatably connected with the load plate (1) through a first connecting assembly, the hook piece (4) is rotatably connected with the load plate through a second connecting assembly, and the fixed end of the drive cylinder (3) is rotatably connected with the load plate (1) through a third connecting assembly; the first connecting assembly, the second connecting assembly and the third connecting assembly respectively include a bolt (61), a slotted nut (62), a bolt (63) and a gasket (64), the movable limiting block (2) is provided with a slot (23), one end of the bolt (61) extends out of the slot (23) and is connected with the slotted nut (62), the bolt (61) is provided with a hole (611), the gasket (64) is arranged between the bolt (61) and the slotted nut (62), and the outer side of the slotted nut (62) is annularly arranged with a plurality of limiting slots (621), and the bolt (63) is inserted into the hole (611) and the limiting slot (621).

3. The automatic unhooking hook structure according to claim 1, characterized in that: The end of the movable limiting block (2) is provided with a slot (22), and the movable limiting block (2) is provided with a fastener penetrating and inserting on both sides of the slot (22), and the output shaft of the drive cylinder (3) is connected with the fastener through a joint bearing (10).

4. The automatic unhooking hook structure according to claim 1, characterized in that: The load plate (1) is provided with a containing opening (12) matched with the hook piece (4), the bottom end of the hook piece (4) is provided with a connecting block (42) rotatably connected with the load plate (1), and the inner side of the hook piece (4) is provided with a hanging arc-shaped part (43).

5. The automatic unhooking hook structure according to claim 1, characterized in that: The middle of the movable limiting block (2) is provided with a penetrating slot (24) matched with the load plate (1).

6. The automatic unhooking hook structure according to claim 1, characterized in that: The load plate (1) is provided with a lifting hole (11), and the load plate (1) is hung on an external lifting hook (5) through the lifting hole (11).

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