A fixed mechanism for lifting and transferring a culture work ship

Abstract

This invention relates to the field of hoisting and fixing technology, specifically a fixing mechanism for hoisting and transferring aquaculture vessels. It includes two straps for securing stacked turnover boxes. The straps are wrapped around the outside of the turnover boxes, and a ratchet tightening mechanism is installed on the outside of the straps to tighten them. A lifting frame is located at the bottom of the ratchet tightening mechanism and is positioned on top of the turnover boxes. The straps connect the turnover boxes to the lifting frame. During hoisting and transfer, the hoisting equipment connects to the lifting frame, changing the center of gravity and preventing the turnover boxes from tipping over. Furthermore, since the hoisting equipment is connected to a lifting ring instead of the straps, the straps are not subjected to lateral tension, making them less prone to tilting and providing better fixation for the turnover boxes. The length of the adjusting cylinder and side guards can be adjusted according to requirements to accommodate different types of turnover boxes. The side guards limit the sides of the turnover boxes, preventing them from tilting or misaligning during hoisting, making the hoisting operation more stable and safer.

Description

Technical Field

[0001] This invention relates to the field of hoisting and fixing components, specifically a fixing mechanism for hoisting and transferring aquaculture vessels. Background Technology

[0002] With the large-scale development of deep-sea aquaculture, aquaculture vessels have become the core equipment for intensive aquaculture. The transfer of adult fish is a key link in the production closed loop. Due to the limited draft of aquaculture vessels and dock conditions, in most cases, the transfer of turnover boxes needs to be completed by small barges. The crane of the aquaculture vessel lifts the turnover boxes loaded with chilled fish one by one onto the deck of the barge, realizing the offshore transfer and replenishment of chilled fish. This operation mode is flexible and adaptable to the working conditions of the open sea, which can effectively reduce the berthing cost of large ships and improve the continuity of aquaculture production.

[0003] The marine operating environment is complex and changeable. Wind and waves can easily cause asynchronous heave, roll and pitch movements between aquaculture vessels and shuttle vessels. In particular, shuttle vessels are small in tonnage and have low freeboard, so they are more prone to undulation in the waves. The relative displacement and attitude difference between the two vessels is significant, which brings great instability to the hoisting and docking. In order to improve the transfer efficiency, the double-box synchronous hoisting method is generally used on site. Multiple turnover boxes containing fresh fish are hoisted at one time. Although this can shorten the operation time, it also amplifies the hoisting risk.

[0004] In existing technology, workers use two sets of straps to vertically fix the two boxes. During the synchronous placement of the two boxes, the deck of the connecting boat rises and falls rapidly with the waves. When the turnover boxes come into contact with the deck, uneven force may occur, and one side may touch the bottom first. When the two boxes are hoisted together, the center of gravity is more likely to be tilted. The two turnover boxes that are only tied together may tip over. The fresh fish inside the boxes may spill onto the deck, causing not only direct economic losses but also pollution to the working environment. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a fixing mechanism for hoisting and transferring aquaculture vessels, which solves the problem in the prior art where multiple turnover boxes are easily tipped over due to the reliance on two sets of straps for packaging.

[0006] A fixing mechanism for hoisting and transferring aquaculture vessels includes two straps for securing stacked turnover boxes. The straps are wrapped around the outside of the turnover boxes, and a ratchet tightening mechanism is installed on the outside of the straps to tighten them. A lifting frame is provided at the bottom of the ratchet tightening mechanism. The lifting frame is mounted on the top of the turnover box at the upper position, and the straps fix the turnover box to the lifting frame. During hoisting and transportation, the hoisting equipment is connected to the lifting frame to change the center of gravity, making it less likely for the turnover box to tip over.

[0007] Preferably, lifting rings connected to the lifting equipment are fixedly installed at each of the four corners of the lifting frame.

[0008] Preferably, the ratchet tightening mechanism further includes a base, which is fixedly installed on the top of the lifting frame. A stop block is slidably inserted into the inner side of the base, and a tightening spring is fixedly installed between the stop block and the base. Two tightening ratchet wheels are symmetrically rotated and installed in the middle of the base. A stop block abuts against the root of the tightening ratchet teeth. Two tightening components are engaged in the middle of the two tightening ratchet wheels. A winding through hole for wrapping straps is preset between the two tightening components.

[0009] Preferably, a tightening handle is rotatably mounted on the outer sides of the two tightening components, and an actuating plate is slidably mounted in the middle of the tightening handle, with the actuating plate abutting against the root of the tightening ratchet teeth; An unlocking handle is fixedly installed on the outside of the toggle plate. The unlocking handle slides through the tightening handle. A return spring is fixedly installed between the tightening handle and the toggle plate. The return spring is movably sleeved around the unlocking handle.

[0010] Preferably, a fixing post is fixedly installed on the outside of the base, and one end of the strap is fixedly set on the outside of the fixing post.

[0011] Preferably, the lifting frame is divided into two sections that are interlocked. One section has multiple locking through holes on its outer side, and the other section has an insertion hole on its outer side. A pin is inserted into the middle of the insertion hole and the locking through hole.

[0012] Preferably, the lifting frame is equipped with side guard plate assemblies at both ends to prevent the turnover box from tilting.

[0013] Preferably, the overall length of the side guard plate assembly is adjustable, including four adjusting cylinders. The four adjusting cylinders are symmetrically fixedly installed in pairs at the bottom of the lifting frame. A side guard plate to prevent the turnover box from sliding is slidably installed on the inner side of the adjusting cylinder. Multiple adjusting through holes are opened through the outer side of the adjusting cylinder. A fixing through hole is opened through the outer side of the side guard plate. A fixing pin is inserted into the middle of the adjusting through hole and the fixing through hole.

[0014] The beneficial effects of this invention are as follows: The straps are used to connect the turnover box to the lifting frame. During hoisting and transportation operations, the hoisting equipment docks with the lifting frame to complete the lifting. In the prior art, the straps are directly wrapped around the outside of the turnover box, and the force is concentrated at the bottom of the turnover box where it is in contact with the straps. This invention uses the lifting ring of the lifting frame as the main force-bearing point, changing the overall center of gravity and effectively preventing the turnover box from tipping over during hoisting. At the same time, the hoisting equipment is directly connected to the lifting ring, replacing the traditional force-bearing method of the straps, avoiding lateral tension on the straps, preventing the straps from shifting or tilting, and greatly improving the overall stability of the turnover box.

[0015] By adjusting the extension length of the adjustable cylinder and side guard plates, it can accommodate various sizes of turnover boxes. The side guard plates can limit and constrain the sides of the turnover boxes, preventing them from shifting or misaligning during hoisting and ensuring a stable and safe hoisting operation. In addition, the overall length of the lifting frame can be adjusted as needed to accommodate turnover boxes of different widths, thus broadening its applicability.

[0016] The curved surface of the tightening ratchet presses against the stop block, forcing the stop block to compress the tensioning spring and thus avoid rotation. When the actuating plate rotates in the opposite direction, the stop block, under the elastic reset action of the tensioning spring, presses against the root of the ratchet teeth, forming a one-way locking limit on the ratchet and preventing it from rotating in the opposite direction. Through this ratchet tightening mechanism, the unidirectional locking and gradual tightening of the straps effectively improves the connection tightness between the turnover box and the lifting frame and the overall assembly stability. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of a fixing mechanism for hoisting and transferring aquaculture vessels provided by the present invention; Figure 2 A schematic diagram of the ratchet tightening mechanism of a fixing mechanism for hoisting and transferring aquaculture vessels provided by the present invention; Figure 3 A schematic diagram of the tightening handle structure of a fixing mechanism for hoisting and transferring aquaculture vessels provided by the present invention; Figure 4 A schematic diagram of the base structure of a fixing mechanism for hoisting and transferring aquaculture vessels provided by the present invention; Figure 5 A schematic diagram of a tightening ratchet structure for a fixing mechanism used for hoisting and transferring aquaculture vessels provided by the present invention; Figure 6 This invention provides a schematic diagram of the usage state of a fixed mechanism for hoisting and transferring aquaculture vessels. Figure 7 This is a schematic diagram of a turnover box hoisting method in the prior art.

[0019] In the picture: 1. Lifting frame; 2. Hanging rings; 3. Ratchet tightening mechanism; 31. Base; 32. Stop block; 33. Tensioning spring; 36. Tightening handle; 38. Actuating plate; 39. Unlocking handle; 310. Return spring; 311. Tightening component; 312. Tightening ratchet; 313. Strap; 314. Winding through hole; 315. Fixing post; 4. Adjusting cylinder; 5. Side guards; 6. Adjust the through hole; 7. Locking through hole; 8. Socket. Detailed Implementation

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0021] like Figure 1 , Figure 2 As shown, this embodiment of the invention provides a fixing mechanism for hoisting and transferring aquaculture vessels, including two straps 313 for fixing stacked turnover boxes. The straps 313 are wrapped around the outside of the turnover boxes. A ratchet tightening mechanism 3 is installed on the outside of the straps 313 to tighten them. A lifting frame 1 is provided at the bottom of the ratchet tightening mechanism 3. Lifting rings 2 connected to hoisting equipment are fixedly installed at the four corners of the lifting frame 1. The lifting frame 1 is erected on the top of the turnover box at the upper position. The straps 313 fix the turnover box to the lifting frame 1.

[0022] In this embodiment, the binding strap 313 connects the turnover box to the lifting frame 1. During hoisting and transportation, the hoisting equipment is connected to the lifting frame 1, changing the center of gravity, making it less likely for the turnover box to tip over. Moreover, the hoisting equipment is connected to the lifting ring 2 instead of the binding strap 313, so the binding strap 313 is not subject to lateral tension and is less likely to tilt, resulting in a better fixing effect on the turnover box.

[0023] Specifically, such as Figure 7 As shown, in the prior art, the strap 313 is directly wrapped around the outside of the turnover box, and the force is concentrated at the bottom of the turnover box where it is in contact with the strap 313; like Figure 6 As shown, this invention uses the lifting ring 2 of the lifting frame 1 as the main stress point, changing the overall center of gravity and effectively preventing the turnover box from tipping over during lifting. Simultaneously, the lifting equipment is directly connected to the lifting ring 2, replacing the traditional force-bearing method of the binding strap 313, avoiding lateral tension on the binding strap 313, preventing the binding strap 313 from shifting or tilting, and significantly improving the overall stability of the turnover box.

[0024] Specifically, such as Figure 1 As shown, the lifting frame 1 is divided into two sections that are interlocked. One section has multiple locking through holes 7 through its outer side, and the other section has an insertion hole 8 through its outer side. A pin is inserted into the middle of the insertion hole 8 and the locking through hole 7.

[0025] In this embodiment, the width of the lifting frame 1 is adjusted according to the requirements, the pin is pulled out, and the overall length of the two sections of the lifting frame 1 is adjusted so that the corresponding locking through hole 7 and the insertion hole 8 are coaxial. The pin is then inserted to accommodate turnover boxes of more widths.

[0026] Specifically, such as Figure 1 As shown, the lifting frame 1 is equipped with side guard plate assemblies at both ends to prevent the turnover box from tilting. The overall length of the side guard plate assembly is adjustable, including four adjusting cylinders 4. The four adjusting cylinders 4 are symmetrically fixedly installed in pairs at the bottom of the lifting frame 1. Side guard plates 5 are slidably installed on the inner side of the adjusting cylinders 4 to prevent the turnover box from sliding sideways. Multiple adjusting through holes 6 are opened through the outer side of the adjusting cylinders 4. Fixed through holes are opened through the outer side of the side guard plate 5. A fixing pin is inserted into the middle of the adjusting through hole 6 and the fixed through hole to fix the matching length of the side guard plate 5 and the adjusting cylinder 4, so as to adapt to more working conditions.

[0027] In this embodiment, the matching length of the adjusting cylinder 4 and the side guard plate 5 is adjusted according to the needs to adapt to more types of turnover boxes. The side guard plate 5 limits the side of the turnover box, making it less likely to tilt or misalign during the hoisting process, and making the hoisting operation more stable and safe.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the ratchet tightening mechanism 3 also includes a base 31, which is fixedly installed on the top of the lifting frame 1. A fixing post 315 is fixedly installed on the outside of the base 31. One end of the strap 313 is fixedly installed on the outside of the fixing post 315. A stop block 32 is slidably inserted into the inside of the base 31. A tensioning spring 33 is fixedly installed between the stop block 32 and the base 31. Two tightening ratchet wheels 312 are symmetrically rotated in the middle of the base 31. The tensioning spring 33 is in a compressed state, and its elasticity causes the stop block 32 to abut against the root of the teeth of the tightening ratchet wheel 312. Two tightening members 311 are engaged in the middle of the two tightening ratchet wheels 312. A winding through hole 314 for winding the strap 313 is preset between the two tightening members 311.

[0029] Specifically, such as Figure 2 , Figure 3 , Figure 5 As shown, a tightening handle 36 is rotatably mounted on the outer side of the two tightening components 311. A toggle plate 38 is slidably mounted in the middle of the tightening handle 36. The toggle plate 38 abuts against the root of the teeth of the tightening ratchet 312. An unlocking handle 39 is fixedly mounted on the outer side of the toggle plate 38. The unlocking handle 39 slides through the tightening handle 36. A return spring 310 is fixedly provided between the tightening handle 36 and the toggle plate 38. The return spring 310 is in a compressed state, and its elasticity causes the toggle plate 38 to abut against the root of the teeth of the tightening ratchet 312. The return spring 310 is movably sleeved around the unlocking handle 39.

[0030] In this embodiment, the ratchet tightening mechanism 3 tightens the strap 313, making the connection between the turnover box and the lifting frame 1 more stable.

[0031] Specific working methods: Adjust the width of the lifting frame 1 as needed, pull out the pin, adjust the overall length of the two sections of the lifting frame 1 so that the corresponding locking through hole 7 and the insertion hole 8 are coaxial, insert the pin, and adapt to turnover boxes of more widths.

[0032] The staff stacked two turnover boxes containing fish vertically. The lifting equipment connected the four lifting rings 2 of the lifting frame 1 with ropes and moved the lifting frame 1 to the top of the turnover box. The staff used the strap 313 to wrap around the bottom of the turnover box at the lower position, and then moved it up through the gap of the tightening part 311 and around the winding through hole 314 to pre-tighten the strap 313. like Figure 2 As shown, the return spring 310 presses the actuating plate 38 against the root of the teeth of the tightening ratchet 312. Turning the tightening handle 36 to the left causes the actuating plate 38 to move the tightening ratchet 312 and the tightening member 311 to rotate, thereby winding up the strap 313. Turning the tightening handle 36 to the right causes the actuating plate 38 to move along the arc surface of the tightening ratchet 312, and the tightening ratchet 312 does not rotate. Then turn the tightening handle 36 to the left again, and repeat this process to wind up the strap 313 and fix the two turnover boxes to the lifting frame 1. During the leftward rotation of the tightening handle 36, the actuating plate 38 actuates the tightening ratchet 312, and the arc surface of the tightening ratchet 312 presses against the stop block 32, causing it to move out of position. When the actuating plate 38 rotates in the opposite direction, the stop block 32 abuts against the root of the teeth of the tightening ratchet 312 under the elastic force of the top spring 33, and the tightening ratchet 312 will not rotate in the opposite direction. The lifting hook of the hoisting equipment is connected to the lifting ring 2. When transferring the turnover box, the hoisting equipment is connected to the lifting ring 2 instead of the strap 313. The strap 313 is not subject to lateral tension, is not easy to tilt, and has a better fixing effect on the turnover box. Adjust the length of the adjusting cylinder 4 and the side guard plate 5 according to the needs, pull out the fixing pin, move the side guard plate 5 to make the required adjusting through hole 6 and fixing through hole coaxial, insert the fixing pin to adapt to the more suitable type of turnover box, the side guard plate 5 limits the side of the turnover box, the turnover box is not easy to tilt or misalign during the hoisting process, and the hoisting operation is more stable and safe.

[0033] The turnover box is lowered onto the docking boat. The staff pulls the unlocking handle 39, causing the actuating plate 38 to disengage from the tightening ratchet 312. The staff presses and squeezes the stop block 32, causing it to disengage from the tightening ratchet 312. The tightening ratchet 312 and the tightening member 311 rotate in opposite directions under the pull of the strap 313 and the staff, causing the strap 313 to disengage from the tightening member 311. The staff then transfers the turnover box.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fixing mechanism for hoisting and transferring aquaculture workboats, comprising two straps (313) for securing stacked turnover boxes, the straps (313) being wrapped around the outside of the turnover boxes, characterized in that: The strap (313) is fitted with a ratchet tightening mechanism (3) to tighten it. The bottom of the ratchet tightening mechanism (3) is equipped with a lifting frame (1). The lifting frame (1) is mounted on the top of the turnover box at the upper position, and the straps (313) fix the turnover box to the lifting frame (1). During hoisting and transportation, the hoisting equipment is connected to the lifting frame (1) to change the center of gravity, making it less likely for the turnover box to tip over.

2. The fixing mechanism for hoisting and transferring aquaculture vessels as described in claim 1, characterized in that: The lifting frame (1) is fixedly installed with lifting rings (2) at each of its four corners, which are connected to the lifting equipment.

3. The fixing mechanism for hoisting and transferring aquaculture vessels as described in claim 1, characterized in that: The ratchet tightening mechanism (3) also includes a base (31), which is fixedly installed on the top of the lifting frame (1). A stop block (32) is slidably inserted into the inner side of the base (31), and a top spring (33) is fixedly installed between the stop block (32) and the base (31). Two tightening ratchet wheels (312) are symmetrically rotated in the middle of the base (31). The stop block (32) abuts against the root of the teeth of the tightening ratchet wheel (312). The two tightening ratchet wheels (312) are engaged with two tightening parts (311) in the middle. There is a winding through hole (314) for winding the strap (313) between the two tightening parts (311).

4. The fixing mechanism for hoisting and transferring aquaculture vessels as described in claim 3, characterized in that: The two tightening parts (311) are rotatably mounted with a tightening handle (36) on their outer sides. A toggle plate (38) is slidably mounted in the middle of the tightening handle (36), and the toggle plate (38) abuts against the root of the teeth of the tightening ratchet (312). An unlocking handle (39) is fixedly installed on the outside of the toggle plate (38). The unlocking handle (39) slides through the tightening handle (36). A return spring (310) is fixedly installed between the tightening handle (36) and the toggle plate (38). The return spring (310) is movably sleeved around the unlocking handle (39).

5. The fixing mechanism for hoisting and transferring aquaculture vessels as described in claim 3, characterized in that: A fixing post (315) is fixedly installed on the outside of the base (31), and one end of the strap (313) is fixedly set on the outside of the fixing post (315).

6. The fixing mechanism for hoisting and transferring aquaculture vessels as described in claim 1, characterized in that: The lifting frame (1) is divided into two sections and is connected by a plug. One section has multiple locking through holes (7) through its outer side, and the other section has a plug hole (8) through its outer side. A pin is inserted into the middle of the plug hole (8) and the locking through hole (7).

7. The fixing mechanism for hoisting and transferring aquaculture vessels as described in claim 1, characterized in that: The lifting frame (1) is equipped with side guard plate assemblies at both ends to prevent the turnover box from tilting.

8. The fixing mechanism for hoisting and transferring aquaculture vessels as described in claim 7, characterized in that: The side guard plate assembly has an adjustable overall length and includes four adjusting cylinders (4). The four adjusting cylinders (4) are symmetrically fixed in pairs at the bottom of the lifting frame (1). The side guard plate (5) is slidably installed on the inner side of the adjusting cylinder (4) to prevent the turnover box from sliding. Multiple adjusting through holes (6) are opened through the outer side of the adjusting cylinder (4). A fixing through hole is opened through the outer side of the side guard plate (5). A fixing pin is inserted into the middle of the adjusting through hole (6) and the fixing through hole.

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