CN214192231U

CN214192231U - Automatic unlocking mechanism

Info

Publication number: CN214192231U
Application number: CN202021788065.4U
Authority: CN
Inventors: 顾中达; 沈伟; 蒋梓恬
Original assignee: Jiangyin Beihai Lsa Co ltd
Current assignee: Jiangyin Beihai Lsa Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-09-14
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses an automatic unlocking mechanism, which comprises a safety plate hinged between two side plates of an unmanned unhooking hook mechanism, wherein a hook is hinged between the two side plates and is positioned below the safety plate; the safety plate is provided with a convex block for limiting the rotation of the lifting hook, and the upper end of the lifting hook is provided with a protruded lifting hook root which is matched with the convex block; one end of the safety plate, which is far away from the hinged end, is provided with a sliding groove, a bolt is arranged in the sliding groove in a sliding mode, the bolt is fixedly connected onto a connecting plate, and the other end of the connecting plate is hinged to a lifting hook. The utility model discloses realize preventing that the lifting hook takes off safety device's automatic unblock, increase security and reliability, need not the manual unblock.

Description

Automatic unlocking mechanism

Technical Field

The utility model relates to an automatic release mechanism.

Background

When the boat or the raft is lifted, the boat or the raft is lifted on the water surface, and the hook is operated by a person in the boat or the raft on the water surface to lift the boat or the raft to the storage position. The existing safety of the lifting hook needs to be manually relieved and cannot be automatically unlocked.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide an automatic release mechanism, realize preventing that the lifting hook takes off safety device's automatic unblock, increase security and reliability, need not the manual unblock.

In order to achieve the purpose, the technical scheme of the utility model is to design an automatic unlocking mechanism, which comprises a safety plate hinged between two side plates of an unmanned unhooking hook mechanism, a hook is hinged between the two side plates, and the hook is positioned below the safety plate; the safety plate is provided with a convex block for limiting the rotation of the lifting hook, and the upper end of the lifting hook is provided with a protruded lifting hook root which is matched with the convex block; one end of the safety plate, which is far away from the hinged end, is provided with a sliding groove, a bolt is arranged in the sliding groove in a sliding mode, the bolt is fixedly connected onto a connecting plate, and the other end of the connecting plate is hinged to a lifting hook. The normal state lifting hook has the safety device insurance, through linkage earlier release insurance when pulling the unhook, the linkage lifting hook realizes the unhook again. The root of the hook is clamped by a safety device (namely a lug) in a normal state; the safety device in the unhooking state is pulled, and the safety device is linked to automatically release the clamping; the blocking is automatically released by linkage, and unhooking is completed.

The further technical scheme is that a through hole used for lifting the safety plate to unlock the safety plate and the lifting hook is arranged in the middle of the safety plate, and a lifting rope or a lifting cable is arranged in cooperation with the through hole.

The further technical scheme is that the upper limiting column and the lower limiting column which are provided with the safety plate are fixed between the two side plates, the safety plate is abutted against the lower limiting column, and the gravity height of the safety plate is lower than the lower limiting column.

The further technical proposal is that the through hole is arranged close to the chute; the distance from the sliding groove to the hinge point of the safety plate is larger than twice the distance from the through hole to the hinge point of the safety plate. When needing the unblock, upwards pulling the insurance board, the insurance board rotates along the pin joint, and the bolt slides to the lower extreme from the upper end of spout, forms the state of unblock (also the lug of its lower surface of insurance board no longer is blocked by the lifting hook root that is the bulge form promptly), continues to pull up then to drive the lifting hook rotation for the rings that are covering on the lifting hook follow the lifting hook roll-off, accomplish the action of unhooking.

The utility model has the advantages and the beneficial effects that: the automatic unlocking of the safety device for preventing the lifting hook from falling off is realized, the safety and the reliability are improved, and manual unlocking is not needed. The normal state lifting hook has the safety device insurance, through linkage earlier release insurance when pulling the unhook, the linkage lifting hook realizes the unhook again.

Drawings

Fig. 1 is a schematic view of an automatic unlocking mechanism of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic view of the direction A-A in FIG. 2;

FIG. 4 is a schematic view of the safe of FIG. 3 in an unlocked state after the safe has been pulled upward;

fig. 5 is a schematic view showing the state of the hook after the hook is rotated after the safety plate of fig. 4 is pulled upward.

In the figure: 1. a side plate; 2. a safety plate; 3. a hook; 4. a bump; 5. the root of the lifting hook; 6. a chute; 7. a bolt; 8. a connecting plate; 9. a through hole; 10. an upper limiting column; 11. a lower restraining post.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 5, the utility model relates to an automatic unlocking mechanism, which comprises a safety plate 2 hinged between two side plates 1 of an unmanned unhooking hook 3 mechanism, a hook 3 hinged between the two side plates 1, and a hook 3 positioned below the safety plate 2; the safety plate 2 is provided with a convex block 4 for limiting the rotation of the lifting hook 3, and the upper end of the lifting hook 3 is provided with a protruded lifting hook root part 5 matched with the convex block 4; one end of the safety plate 2 far away from the hinged end is provided with a sliding groove 6, a bolt 7 is arranged in the sliding groove 6 in a sliding mode, the bolt 7 is fixedly connected onto a connecting plate 8, and the other end of the connecting plate 8 is hinged to the lifting hook 3. The middle part of the safety plate 2 is provided with a through hole 9 for lifting the safety plate 2 to unlock the safety plate 2 and the lifting hook 3, and a lifting rope or a lifting cable is matched with the through hole 9. Still fixed last spacing post 10 and the lower spacing post 11 that is equipped with the insurance board 2 between two curb plates 1, the insurance board 2 supports and leans on spacing post 11 down, and the centre of gravity height of insurance board 2 is less than lower spacing post 11. The through hole 9 is arranged close to the chute 6; the distance from the sliding groove 6 to the hinge point of the safety plate 2 is more than twice the distance from the through hole 9 to the hinge point of the safety plate 2.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An automatic unlocking mechanism is characterized by comprising a safety plate hinged between two side plates of an unmanned unhooking hook mechanism, wherein a hook is hinged between the two side plates and is positioned below the safety plate; the safety plate is provided with a convex block for limiting the rotation of the lifting hook, and the upper end of the lifting hook is provided with a protruded lifting hook root which is matched with the convex block; one end of the safety plate, which is far away from the hinged end, is provided with a sliding groove, a bolt is arranged in the sliding groove in a sliding mode, the bolt is fixedly connected onto a connecting plate, and the other end of the connecting plate is hinged to a lifting hook.

2. The automatic unlocking mechanism of claim 1, wherein the middle part of the safety plate is provided with a through hole for lifting the safety plate to unlock the safety plate and the lifting hook, and a lifting rope or a lifting cable is matched with the through hole.

3. The automatic unlocking mechanism of claim 2, wherein an upper limit post and a lower limit post of the safety plate are fixedly arranged between the two side plates, the safety plate abuts against the lower limit post, and the height of the center of gravity of the safety plate is lower than that of the lower limit post.

4. The automatic unlocking mechanism according to claim 3, wherein the through hole is provided near the slide groove; the distance from the sliding groove to the hinge point of the safety plate is larger than twice the distance from the through hole to the hinge point of the safety plate.