Shellfish culture cage opening and discharging device
By designing a cage opening and unloading device for shellfish farming, utilizing a support frame, a swing basket, and a spreading mechanism, the problems of high labor intensity and slow speed in existing technologies are solved, achieving rapid unloading and saving manpower.
Patent Information
- Application Number
- CN202520124419.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The current shellfish farming cages require multiple workers to lift and shake them during the unloading process, which is labor-intensive and slow, resulting in a waste of manpower.
A shellfish farming cage opening and unloading device was designed, comprising a support frame, a swing basket, a swing mechanism, and a spreading mechanism. The swing basket spreads open the individual cage opening and drives it to swing and shake off the shellfish. At the same time, the conveying mechanism transports the shellfish, reducing manual operation.
It reduces labor intensity, increases the speed of opening and unloading, saves manpower, and has a simple structure and quick operation.
Smart Images

Figure CN223759028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shellfish aquaculture cage unloading technology, specifically a shellfish aquaculture cage opening and unloading device that is simple in structure, saves manpower, reduces labor intensity, opens cages quickly, and unloads material rapidly. Background Technology
[0002] As is well known, Pacific oysters are mainly cultivated using various methods, including raft farming, longline farming, intertidal seeding, rack farming, and fixed farming, with raft farming and intertidal seeding being the most common. Due to its low production costs, convenient management, and high profitability, oyster farming has attracted great enthusiasm from fishermen, leading to a rapid expansion of the farming area. After 30 years of development, it has become one of the major farmed species.
[0003] Currently, single-cage culture technology refers to the technique of separating artificially cultivated oyster seedlings from their substrate and individually placing them in net cages for raft culture. Existing single cages generally consist of multiple spaced-apart partitions, with strip-shaped culture nets wrapped around the outside of the partitions. After the strip-shaped culture nets are wrapped around the partitions, the openings at both ends of the culture nets are sealed by connecting ropes. When it is necessary to empty or unload the cages, the connecting ropes need to be pulled out manually, the openings of the culture nets need to be opened, and then the cages need to be lifted and shaken by hand to shake the oysters out of the adjacent partitions. After the culture cages are used for cultivation, each single cage weighs 20-50 kilograms, requiring multiple workers to lift and shake them. Therefore, a lot of manpower is wasted, the labor intensity of the workers is high, and the unloading speed is slow. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a shellfish aquaculture cage opening and unloading device that is simple in structure, saves manpower, reduces labor intensity, and has fast cage opening and unloading speed.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A shellfish farming cage opening and unloading device is provided, characterized in that the support is provided with a swing basket, a swing mechanism and a spreading mechanism. The swing basket is swing-connected to the frame via the swing mechanism. The spreading mechanism is installed on the swing basket. The spreading mechanism spreads open the opening of the individual cage placed on the swing basket. Then, the swing mechanism drives the swing basket to swing and shake the shellfish in the individual cage off.
[0007] The swing basket of this utility model includes end plates and basket rods. The end plates are fixedly connected to each other via the basket rods. The end plates are sway-connected to the support. A swing mechanism is connected to the frame. The output end of the swing mechanism is rotatably connected to the basket rods. The swing mechanism drives the basket rods to swing.
[0008] The bracket of this utility model is equipped with a buffer cylinder, and a buffer spring is placed inside the buffer cylinder. A guide rod for inserting the buffer spring is connected to the end plate, and the swinging of the swing basket is realized through the buffer spring.
[0009] The opening mechanism of this utility model includes an opening rod, an opening cylinder, and an opening connecting rod. The opening cylinder is fixed to the end plate of the swing basket. The output end of the opening cylinder is hinged to the ends of the two opening connecting rods respectively. The other end of the opening connecting rod is rotatably connected to the opening rod. The end of the opening rod is inserted into the opening sliding hole provided on the end plate of the swing basket. The opening plug is connected in parallel to the opening rod. The opening plug is inserted into the mesh of the individual cage. Then, the opening cylinder drives the opening connecting rod, which in turn drives the opening rod to open the opening of the individual cage.
[0010] The present invention provides two opening mechanisms, which are respectively installed on the end plates at both ends of the swing cage. The opening cylinder of one opening mechanism is fixed above the end plate, and the opening cylinder of the other opening mechanism is fixed below the end plate. A material outlet is provided on the bracket on one side of the opening cylinder fixed above the end plate, and a material inlet is provided on the bracket on one side of the opening cylinder fixed below the end plate.
[0011] The present invention describes a conveying mechanism installed on the support below the swing basket. The output side of the conveying mechanism extends out of the material outlet of the support, and the shellfish shaken off by the swinging mechanism are transported away.
[0012] The material inlet position of this utility model has a feeding mechanism installed on the side of the bracket, which realizes the pulling and feeding of the individual cage.
[0013] The conveying mechanism of this utility model includes a conveying motor, a conveyor belt, and conveying rollers. The conveying rollers are rotatably connected to the support frame, and the conveyor belt is sleeved on the conveying rollers. One of the conveying rollers is fixedly connected to the output end of the conveying motor.
[0014] The feeding mechanism of this utility model includes a gantry crane, a transverse guide rail, a gantry crane motor, a lifting cable, and a lifting crossbar. The vertical rod of the gantry crane is fixedly connected to the support. The transverse rod of the gantry crane extends to the side of the support. The transverse guide rail is connected below the transverse rod of the gantry crane. The transverse guide rail is slidably connected to the slider on the gantry crane motor. The output end of the gantry crane motor is connected to the lifting cable. The end of the lifting cable is connected to the lifting hook. A single-cage lifting crossbar is connected to the lifting hook. The upper end of the lifting crossbar is provided with a hook ring connected to the lifting hook. The lower end of the lifting crossbar is connected to a net hook.
[0015] The feeding mechanism of this utility model includes a feeding inclined plate and feeding rollers. The lower end of the feeding inclined plate is fixed to the ground, and the upper end of the feeding inclined plate extends to the support at the material inlet position and is fixed to the support. Roller mounting holes are distributed on the feeding inclined plate. Ear seats are connected to both sides of the roller mounting holes on the back of the feeding inclined plate. The ear seats are connected to the feeding rollers via hinges. The wheel surface of the feeding rollers extends to the front side of the feeding inclined plate. The individual cage is manually pulled through the front side of the feeding inclined plate and pulled to the material inlet position on the support.
[0016] The swing basket of this utility model has a guide plate on the basket rod. The upper end of the guide plate is connected to the basket rod, and the lower end of the guide plate is connected to the support rod. The lower end of the guide plate is inclined towards the conveyor belt to prevent the shellfish shaken off during the swing of the basket from falling to the ground.
[0017] This utility model, due to the above-mentioned structure, has the advantages of simple structure, saving manpower, reducing labor intensity, fast opening speed, and fast unloading speed. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the first feeding mechanism used in this utility model.
[0019] Figure 2 yes Figure 1 Enlarged view of part A.
[0020] Figure 3 This is a side view of the relationship between the two support rods.
[0021] Figure 4 yes Figure 1 A schematic diagram of the side structure of the middle plate.
[0022] Figure 5 This is a schematic diagram of the structure of the second feeding mechanism used in this utility model.
[0023] Figure 6 yes Figure 5 Enlarged view of part B.
[0024] Figure 7 yes Figure 1 A schematic diagram of the side structure of the loading and unloading inclined plate. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings:
[0026] As shown in the attached figure, a shellfish farming cage opening and unloading device is provided with a support 1. The support 1 is characterized by having a swing basket, a swing mechanism and a spreading mechanism. The swing basket is swing-connected to the frame via the swing mechanism. The spreading mechanism is installed on the swing basket. The spreading mechanism spreads open the opening of the individual cage placed on the swing basket. Then, the swing mechanism drives the swing basket to swing and shake the shellfish in the individual cage off.
[0027] Furthermore, the swing basket includes end plates 2 and basket rods 3. The end plates 2 are fixedly connected to each other via the basket rods 3. The end plates 2 are sway-connected to the bracket 1. A swing mechanism is connected to the frame. The output end of the swing mechanism is rotatably connected to the basket rods 3. The swing mechanism drives the basket rods 3 to swing.
[0028] The aforementioned swing mechanism includes a double-bar motor 4, a swing rod 5, an upper swing sleeve 6, a lower swing sleeve 7, and an eccentric wheel 8. The double-bar motor 4 is fixed on the bracket 1, and its two output ends are respectively connected to the eccentric wheel 8. The eccentric shaft of the eccentric wheel 8 is rotatably connected to the lower swing sleeve 7. The lower end of the swing rod 5 is fixedly connected to the lower swing sleeve 7, and the upper end of the swing rod 5 is fixedly connected to the upper swing sleeve 6. The upper swing sleeve 6 is connected to the basket rod 3 in a swinging connection. The eccentric shafts of the eccentric wheels 8 on both sides of the double-bar motor 4 are at 180°, ensuring that while one side of the swing rod 5 on both sides of the double-bar motor 4 is swinging downwards, the other side is swinging upwards.
[0029] Furthermore, the bracket 1 is provided with a buffer cylinder 9, and a buffer spring 10 is placed inside the buffer cylinder 9. A guide rod 35 is connected to the end plate 2 through which the buffer spring 10 is inserted, so that the swinging basket can be swung by the buffer spring 10.
[0030] Furthermore, the opening mechanism includes an opening rod 11, an opening cylinder 12, and an opening connecting rod 13. The opening cylinder 12 is fixed on the end plate 2 of the swing basket. The output end of the opening cylinder 12 is hinged to the ends of the two opening connecting rods 13 respectively. The other end of the opening connecting rod 13 is rotatably connected to the opening rod 11 via the opening sleeve 36. The end of the opening rod 11 is inserted into the opening sliding hole 15 provided on the end plate 2 of the swing basket. The opening plug 14 is connected in parallel on the opening rod 11. The opening plug 14 is inserted into the mesh of the individual cage. Then, the opening cylinder 12 drives the opening connecting rod 13, which in turn drives the opening rod 11 to open the opening of the individual cage.
[0031] The aforementioned expansion plug 14 is a U-shaped plug. The open end of the U-shaped plug is connected to the expansion rod 11. The closed end of the U-shaped plug faces upward and is inclined towards the expansion direction of the expansion rod 11 to prevent the mesh of the individual cage from falling off during the expansion process, which would affect the expansion effect. The aforementioned expansion sliding hole 15 is an inclined sliding hole. The two inclined sliding holes are arranged symmetrically. The expansion sliding hole 15 is inclined to facilitate the opening of the individual cage mesh along the outer arc.
[0032] Furthermore, there are two opening mechanisms, which are respectively installed on the end plates 2 at both ends of the swing cage. The opening cylinder 12 of one opening mechanism is fixed above the end plate 2, and the opening cylinder 12 of the other opening mechanism is fixed below the end plate 2. A material outlet 16 is provided on the bracket 1 on one side of the opening cylinder 12 fixed above the end plate 2, and a material inlet 17 is provided on the bracket 1 on one side of the opening cylinder 12 fixed below the end plate 2.
[0033] Furthermore, a conveying mechanism is installed on the support 1 below the swing basket. The output side of the conveying mechanism extends out of the material outlet 16 of the support 1, and the shellfish shaken off by the swinging are transported away by the conveying mechanism.
[0034] Furthermore, a feeding mechanism is installed on the side of the bracket 1 at the material inlet 17 position, which enables the individual cage to be pulled and fed.
[0035] Furthermore, the conveying mechanism includes a conveying motor 18, a conveyor belt 19, and a conveying roller 20. The conveying roller 20 is rotatably connected to the bracket 1, and the conveyor belt 19 is fitted onto the conveying roller 20. One of the conveying rollers 20 is fixedly connected to the output end of the conveying motor 18.
[0036] There are two types of feeding mechanisms:
[0037] The first type of feeding mechanism includes a gantry crane 21, a transverse guide rail 22, a gantry crane motor 23, a lifting cable 24, and a lifting crossbar 25. The vertical rod of the gantry crane 21 is fixedly connected to the support 1. The transverse rod of the gantry crane 21 extends to the side of the support 1. The transverse guide rail 22 is connected to the lower part of the transverse rod of the gantry crane 21. The transverse guide rail 22 is slidably connected to the slider on the gantry crane motor 23. The output end of the gantry crane motor 23 is connected to the lifting cable 24. The end of the lifting cable 24 is connected to the lifting hook 26. The lifting crossbar 25 of the single cage is connected to the lifting hook 26. The upper end of the lifting crossbar 25 is provided with a hook ring 28 connected to the lifting hook 26. The lower end of the lifting crossbar 25 is connected to the net hook 29 side by side. The transverse rod of the gantry crane 21 and the transverse guide rail 22 are inclined downwards towards the material outlet 16 to reduce manpower.
[0038] The second type of feeding mechanism includes a feeding inclined plate 30 and feeding rollers 31. The lower end of the feeding inclined plate 30 is fixed to the ground, and the upper end of the feeding inclined plate 30 extends to the support 1 at the material inlet 17 and is fixed to the support 1. Roller mounting holes 32 are distributed on the feeding inclined plate 30. The two sides of the roller mounting holes 32 on the back of the feeding inclined plate 30 are respectively connected to ear seats 33. The ear seats 33 are connected to the feeding rollers 31 via hinges. The wheel surface of the feeding rollers 31 extends to the front side of the feeding inclined plate 30. The individual cage is manually pulled through the front side of the feeding inclined plate 30 and pulled to the material inlet 17 on the support 1.
[0039] Furthermore, the swing basket has a guide plate 34 on the basket rod 3. The upper end of the guide plate 34 is connected to the basket rod 3, and the lower end of the guide plate 34 is connected to the support rod 11. The lower end of the guide plate 34 is inclined towards the conveyor belt 19 to prevent the shellfish shaken off during the swing of the swing basket from falling to the ground.
[0040] In use, the individual cage is manually dragged to the position of the feeding mechanism. The feeding mechanism has two structures and two feeding methods:
[0041] The first feeding method: The hook 29 below the lifting crossbar 25 is manually hooked onto the netting of the individual cage. Then, the gantry crane motor 23 is started, retracting the lifting cable 24 to lift the individual cage. After lifting, the individual cage is manually pushed. Due to the inclined crossbar and the transverse guide rail 22, the individual cage can be easily pushed above the spreading rod 11. Then, the gantry crane motor 23 is started again to unload the individual cage. The connecting rope on the side of the individual cage is then manually pulled out, and the opening of the individual cage's aquaculture netting is lowered onto the spreading rod 11.
[0042] The second feeding method: The individual cage is manually dragged onto the feeding inclined plate 30. Under the action of the feeding rollers 31 on the feeding inclined plate 30, the individual cage is easily pulled to the top of the feeding inclined plate 30. Then, the connecting rope on the side of the individual cage is pulled out manually, with the opening of the breeding net of the individual cage facing downwards. The individual cage is then manually dragged onto the supporting rod 11 between the basket poles 3.
[0043] The opening action: The opening plugs 14 on the opening rod 11 are inserted into both sides of the opening of the aquaculture net. Then, the two opening cylinders 12 are activated. The output ends of the opening cylinders 12 drive the opening connecting rods 13 on both sides to open, thereby driving the opening rod 11 to move along the opening sliding hole 15, thus opening the opening of the aquaculture net. After opening, the swing cylinder is activated. The swing cylinder drives the swing basket to swing, thereby shaking the shellfish in the individual cage onto the conveyor belt 19 directly below. Due to the action of the guide arc plate, the shellfish can be prevented from falling to the ground and can fall onto the conveyor belt 19. Finally, the shellfish are transported away by the conveyor belt 19. The individual cage that has been shaken off is manually removed, and the opening and unloading of the next individual cage is carried out. Due to the above structure, this utility model has the advantages of simple structure, saving manpower, reducing labor intensity, fast opening speed, and fast unloading speed.
Claims
1. A device for opening and unloading a shellfish farming cage, comprising a support, characterized in that The support is provided with a swing basket, a swing mechanism and a opening mechanism, the swing basket is swing connected with the support through the swing mechanism, the opening mechanism is installed on the swing basket, the opening mechanism opens the opening of the single cage placed on the swing basket, and then the swing basket is swung through the swing mechanism to shake off the shellfish in the single cage.
2. A device for opening and emptying a shellfish cage according to claim 1, characterised in that The swing basket comprises end plates and basket rods, the end plates are fixedly connected through the basket rods, the end plates are swing connected with the support, the support is connected with the swing mechanism, and the output end of the swing mechanism is rotationally connected with the basket rod.
3. A device for opening and emptying a shellfish cage according to claim 2, characterised in that The support is provided with a buffer cylinder, a buffer spring is placed in the buffer cylinder, a guide rod is connected with the end plate and inserted into the buffer spring, and the swing of the swing basket is realized through the buffer spring.
4. A device for opening and emptying a shellfish cage according to claim 1, characterised in that The opening mechanism comprises an opening rod, an opening cylinder and an opening connecting rod, the opening cylinder is fixed on the end plate of the swing basket, the output end of the opening cylinder is hingedly connected with the end of the two opening connecting rods, the other end of the opening connecting rod is rotationally connected with the opening rod, the end of the opening rod is inserted into the opening sliding hole provided on the end plate of the swing basket, the opening plug is connected with the opening rod in parallel, the opening plug is inserted into the mesh of the single cage, and then the opening of the single cage is opened through the opening cylinder, the opening connecting rod and the opening rod.
5. A device for opening and emptying a shellfish cage according to claim 1, characterised in that The opening mechanism is provided with two, the two opening mechanisms are respectively installed on the end plates at the two ends of the swing cage, one opening cylinder of one opening mechanism is fixed above the end plate, one opening cylinder of the other opening mechanism is fixed below the end plate, the support on one side of the opening cylinder fixed above the end plate is provided with a material outlet, and the support on one side of the opening cylinder fixed below the end plate is provided with a material inlet.
6. A device for opening and emptying a shellfish cage according to claim 1, characterised in that The conveying mechanism is installed on the support below the swing basket, the output side of the conveying mechanism extends to the material outlet position of the support, and the shellfish shaken off by the swing is conveyed away through the conveying mechanism.
7. A device for opening and emptying a shellfish cage according to claim 5, characterised in that The material inlet position of the support side is provided with a feeding mechanism, and the feeding mechanism realizes the pulling and feeding of the single cage.
8. A device for opening and emptying a shellfish cage according to claim 7, characterised in that The feeding mechanism comprises a row hanger, a transverse guide rail, a row lifting motor, a lifting cable, and a lifting crossbar, the vertical rod of the row hanger is fixedly connected with the support, the horizontal rod of the row hanger extends to the side of the support, the horizontal rod of the row hanger is connected with the transverse guide rail below, the transverse guide rail is slidably connected with the sliding block on the row lifting motor, the output end of the row lifting motor is connected with the lifting cable, the end of the lifting cable is connected with the lifting hook, the lifting hook is connected with the single cage lifting crossbar, the upper end of the lifting crossbar is provided with a hook ring connected with the lifting hook, and the lower end of the lifting crossbar is connected with the mesh hook in parallel.
9. An apparatus for opening and emptying a shellfish cage according to claim 6, wherein The conveying mechanism comprises a conveying motor, a conveying belt and conveying rollers, the conveying rollers are rotationally connected with the support, and the conveying belt is sleeved on the conveying rollers.
10. A device for opening and emptying a shellfish cage according to claim 1, characterised in that The basket rod of the swing basket is provided with a guide soft plate, the upper end of the guide soft plate is connected with the basket rod, the lower end of the guide soft plate is connected with the opening rod, the lower end of the guide soft plate is inclined to the conveying belt direction, and the shellfish shaken off in the swing process is prevented from falling on the ground.