Heavy rapid hooking and releasing device for supply

Abstract

The invention discloses a heavy type quick hooking and releasing device for supply, which is used for being connected with a long chain ring of a receiving head of a dry cargo receiving device of a receiving ship and comprises a quick hooking and releasing device body, a long chain ring, a short chain ring, an anti-releasing ring and a stop pin, and the long chain ring is connected with the quick hooking and releasing device body through the short chain ring. And a stop pin is inserted into a pin hole in the end part of the small end of the quick hooking and releasing device body, so that the long chain ring and the quick hooking and releasing device body are fixed by the anti-releasing ring. Pins are inserted into pin holes in the two ends of the stop pin and serve as secondary locking devices, and double insurance is provided. Instantaneous safe separation under the heavy load can be achieved, operation is easy and convenient, the labor intensity is reduced, the bearing capacity is high, meanwhile, a secondary locking device is designed, an additional plug pin is arranged, double insurance is provided, and quick release, reliability and safety are both considered.

Description

Technical Field

[0001] This invention relates to a heavy-duty quick-attachment device for marine replenishment, and more particularly to a heavy-duty quick-attachment and release device for replenishment. Background Technology

[0002] Because sea voyages and maritime activities involve long distances and extended periods, and ships carry limited supplies such as fuel, fresh water, food, and spare parts, they require replenishment ships to supply the various provisions necessary for normal navigation.

[0003] Existing related patent technologies, such as the patent document (CN212921892U) which discloses a rapid unhooking device for a dual-line liquid cargo replenishment system, include: a unhooking mechanism, a connecting arm, a unhooking latch, and a rotating arm. The lower end of the unhooking mechanism has an arc-shaped corner and is hinged to the connecting arm; the lower end of the unhooking latch is connected to the rotating arm via a connecting pin; the connecting arm is fixedly connected to the rotating arm; the unhooking latch has a through hole that mates with the upper section of the unhooking mechanism. However, under heavy loads, this device cannot effectively balance the requirements of rapid release and absolute reliability. It can only provide a fixed force threshold as a release condition, without considering dynamic load changes in complex marine environments; it lacks a secondary locking device to provide double insurance, relying entirely on the reliability of a single mechanical structure, resulting in significant safety design flaws. Especially in high-risk maritime operating environments, the lack of redundant safety design (such as a secondary locking device) is a critical issue.

[0004] Therefore, it is of great significance to design heavy-duty rigging terminal components suitable for heavy-duty lateral dry cargo replenishment operations to meet the dry cargo replenishment and conveying requirements under heavy-duty lateral dry cargo replenishment conditions. Summary of the Invention

[0005] The technical problems to be solved by this invention are: 1. Design a heavy-duty connection device with instantaneous detachment.

[0006] 2. Achieve a balance between rapid release and absolute reliability under heavy loads.

[0007] 3. Improve the efficiency of heavy-duty connection operations and reduce labor intensity.

[0008] 4. Its shape design allows for intuitive identification of the working status of the quick-connect and release device, improving operational safety.

[0009] The technical solution adopted by the present invention to solve the technical problem is: a heavy-duty quick-connect and release device for replenishment, used to connect with the long chain link of the receiving head of the dry cargo receiving device of the receiving ship, including a quick-connect and release device body, a long chain link, a short chain link, an anti-detachment ring, and a stop pin. The long chain link and the quick-connect and release device body are connected by the short chain link. The stop pin is inserted into the pin hole at the small end of the quick-connect and release device body so that the anti-detachment ring fixes the long chain link to the quick-connect and release device body.

[0010] Furthermore, pins are inserted into the pin holes at both ends of the stop pin, which serve as a secondary locking device, providing double security.

[0011] Furthermore, the long chain link is connected to the end of the steel cable of the supply ship.

[0012] Furthermore, the quick-connect release device body is directly connected to the long chain link at the terminal of the receiver head on the receiving ship.

[0013] Furthermore, at the start of operation, the long chain ring and the quick-connect release device body are opened with the short chain ring as the rotation center. The long chain ring at the receiving head terminal of the receiving ship is fastened to the middle bend of the quick-connect release device body, and then the long chain ring is connected to the quick-connect release device body through the anti-detachment ring.

[0014] Compared with the prior art, the present invention has the following significant advantages: 1. Achieve instantaneous and safe release under heavy loads.

[0015] 2. Easy to operate, reducing labor intensity.

[0016] 3. It has a high load-bearing capacity and is designed with a secondary locking device, equipped with an additional pin, providing double insurance and balancing quick release with reliable safety. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of the heavy-duty quick-attachment and release device for resupply of the present invention; Figure 2 This is a top view of the structure of the heavy-duty quick-connect and release device for resupply according to the present invention; In the diagram: 1-long chain ring, 2-anti-detachment ring, 3-quick-connection and release device body, 4-short chain ring, 5-stop pin, 6-pin. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figure 1As shown in Figure 2, an embodiment of the present invention provides a heavy-duty quick-connect and release device for replenishment, which is used to connect with the long chain link of the receiving head of the dry cargo receiving device of the receiving ship. It includes a quick-connect and release device body 3, a long chain link 1, a short chain link 4, an anti-detachment ring 2, a stop pin 5, and a pin 6.

[0019] The long chain link 1 is connected to the end of the steel cable of the supply ship, and the quick-connect and release device body 3 is directly connected to the long chain link at the end of the receiving head of the receiving ship. The long chain link 1 and the quick-connect and release device body 3 are connected by a short chain link 4.

[0020] A stop pin 5 is inserted into the pin hole at the small end of the quick-connect release device body 3, and pins 6 are inserted into the pin holes at both ends of the stop pin 5, so that the anti-detachment ring 2 fixes the long chain ring 1 to the quick-connect release device body 3. Pins 6 serve as a secondary locking device, providing double security.

[0021] When starting work, the long chain ring 1 and the quick-connect and release device body 3 are opened with the short chain ring 4 as the rotation center. The long chain ring of the receiving head terminal of the receiving ship is fastened to the middle bend of the quick-connect and release device body 3, and then the long chain ring 1 and the quick-connect and release device body 3 are connected by the anti-detachment ring 2.

[0022] The key technical points of this invention are as follows: (1) The quick-release device has a very fast release speed and is easy to operate. The release action can be completed by pulling out the safety pin.

[0023] (2) The quick-connect and release device is robustly designed and can withstand high tensile forces. Its simple structure improves its economic efficiency.

[0024] (3) A secondary locking device was designed and equipped with an additional pin to provide double security.

[0025] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, all technical solutions obtained through equivalent substitution or transformation fall within the protection scope of the present invention.

Claims

1. A heavy-duty quick-connect and disconnect device for replenishment, used to connect with the long chain link of the receiving head of the dry cargo receiving device on a receiving ship, characterized in that: It includes a quick-release device body, a long chain ring, a short chain ring, an anti-detachment ring, and a stop pin. The long chain ring is connected to the quick-release device body through the short chain ring. A stop pin is inserted into the pin hole at the small end of the quick-release device body, so that the anti-detachment ring fixes the long chain ring to the quick-release device body.

2. The heavy-duty quick-connect and disconnect device for supply as described in claim 1, characterized in that: Pins are inserted into the pin holes at both ends of the stop pin, and the pins serve as a secondary locking device, providing double security.

3. The heavy-duty quick-connect and disconnect device for supply as described in claim 1, characterized in that: The long chain link is connected to the end of the steel cable of the supply ship.

4. The heavy-duty quick-connect and disconnect device for supply as described in claim 3, characterized in that: The quick-connection and release device is directly connected to the long chain link at the terminal of the receiver head on the receiving ship.

5. The heavy-duty quick-connect and disconnect device for supply as described in claim 1, characterized in that: When starting work, the long chain ring and the quick-connect release device body are opened with the short chain ring as the rotation center. The long chain ring at the end of the receiving head of the receiving ship is fastened to the middle bend of the quick-connect release device body, and then the long chain ring is connected to the quick-connect release device body through the anti-detachment ring.

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