Adjustable river crab fishing net

Abstract

The utility model relates to the technical field of river crab catching netting gears, and discloses an adjustable river crab catching netting gear which comprises two fixing rods, a length adjusting assembly and a clamping installation assembly are arranged at the ends of the two fixing rods respectively, the other end of one fixing rod is fixedly connected with a first shell, and the other end of the other fixing rod is fixedly connected with a second shell. An angle adjusting assembly is arranged on the inner side of the first shell, a shell is fixedly connected to the outer side of the first shell, and a restoring assembly is arranged on the inner side of the shell; the restoring assembly comprises a second shell, the second shell is rotationally connected to the inner side of the end of the shell, and a sliding rod is slidably connected to the inner side of the second shell. According to the anti-escape fishing net, the anti-escape rod is arranged at the bottom of the limiting plate, an effective barrier is formed, and river crabs can be prevented from escaping from the fishing net in the fishing process. Even if the river crabs try to climb or struggle, the anti-escape rods can limit the river crabs to move, it is ensured that the caught river crabs are firmly trapped in the net, and the completeness of the catching result is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of crab fishing nets, and in particular to an adjustable crab fishing net. Background Technology

[0002] Adjustable crab fishing nets are a type of professional fishing tool specifically designed for crab fishing operations, possessing high flexibility in structure and function. Their core feature lies in the ability to tailor key parameters of the net to diverse fishing environments, the characteristics of crabs at different growth stages, and actual fishing needs.

[0003] Currently, the structure and angle of crab fishing nets are fixed. This fixed structure and angle allow the nets to maintain a stable shape and position in relatively calm, slow-moving waters with a relatively uniform underwater environment. Because of the fixed structure and angle, fishermen do not need complex operating skills. They simply place the net in the appropriate position and operate according to the standard fishing procedure. For newcomers to fishing, the learning curve is low, allowing them to quickly familiarize themselves with and master the fishing methods and begin operations in a short time.

[0004] Although the fixed structure and angle of crab-catching nets offer high stability and relatively easy operation, this fixed design limits their coverage to specific areas, making flexible adjustments based on the crabs' distribution impossible. Furthermore, fixed-structure nets often lack specific escape-prevention measures. Crabs, with their agility and climbing / struggling abilities, can easily find weak points or openings in the nets to escape. Therefore, this paper proposes an adjustable crab-catching net to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable crab catching net, which aims to improve the existing technology's inability to effectively adjust the angle according to the distribution of crabs and prevent the problem.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable crab catching net includes two fixed rods, each with a length adjustment component and a snap-fit ​​mounting component at its end. One of the fixed rods is fixedly connected to a housing at its other end. An angle adjustment component is provided inside the housing, and a shell is fixedly connected to the outside of the housing. A recovery component is provided inside the shell.

[0008] The restoration component includes a second outer shell, which is rotatably connected to the inner side of the end of the outer shell. A sliding rod is slidably connected to the inner side of the second outer shell, and a spring is sleeved on the outer side of the sliding rod. One end of the spring is located on the inner side of the bottom of the second outer shell, and the other end of the spring is located on the inner side of the end of the sliding rod. A second connecting rod is rotatably connected to the inner side of the outer shell. A fixing plate is fixedly connected to the outer side of the middle part of the second connecting rod. The fixing plate is rotatably connected to the inside of the shell, and the bottom of the sliding rod is rotatably connected to the outer side of the fixing plate.

[0009] As a further description of the above technical solution:

[0010] The angle adjustment assembly includes a connecting rod 1, with both ends of the connecting rod 1 rotatably connected to the inner sides of both ends of the housing 1. Gear 1 is rotatably connected to the inner sides of both ends of the housing 1. Two gear 1s are fixedly connected to the two ends of the connecting rod 1. A dual-head motor is fixedly connected to the inner side of the housing 1. Gear 2s are rotatably connected to the inner sides of both ends of the housing 1. Two gear 2s are fixedly connected to the output ends of the dual-head motor. The two gear 2s are meshed with the outer sides of the two gear 1s.

[0011] As a further description of the above technical solution:

[0012] The length adjustment assembly includes a lifting shell, which is fixedly connected to the outside of one of the fixed rods. A telescopic rod is slidably connected to the inside of the lifting shell. Multiple holes are opened on the inside of the telescopic rod. A hole is also opened on the inside of the end of the lifting shell. Fixing bolts are installed on the inside of the holes of the telescopic rod and the lifting shell.

[0013] As a further description of the above technical solution:

[0014] The installation assembly includes a first connecting block, which is fixedly connected to the side of one of the first connecting blocks. A second connecting block is slidably connected to the inner side of the first connecting block. The side of the second connecting block is fixedly connected to the outer side of the end of the telescopic rod. Multiple sliding grooves are provided on the outer side of the second connecting block. Multiple sliders are fixedly connected to the inner side of the first connecting block. Spring push rods are installed on the inner side of the ends of the multiple sliding grooves. The multiple sliders are slidably connected to the inner side of the sliding grooves. The multiple sliders are respectively disposed on the outer side of the multiple spring push rods.

[0015] As a further description of the above technical solution:

[0016] Multiple fishing nets are provided on the outer side of the connecting rod, and multiple protective layers are fixedly connected to the outer side of the connecting rod.

[0017] As a further description of the above technical solution:

[0018] Multiple anti-escape rods are fixedly connected to the outer side of the second connecting rod, and multiple limiting blocks are rotatably connected to the outer side of the second connecting rod. The inner side of the ends of the multiple limiting blocks is rotatably connected to the outer side of the first connecting rod.

[0019] As a further description of the above technical solution:

[0020] A limiting plate is fixedly connected to one side of the connecting rod, and multiple anti-escape rods are all set at the bottom of the limiting plate;

[0021] As a further description of the above technical solution:

[0022] One of the fixing rods is fitted with an anti-slip pad on its outer side.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the escape-proof rod installed at the bottom of the limiting plate forms an effective barrier, which can prevent crabs from escaping from the net during the fishing process. Even if the crabs try to climb or struggle, the escape-proof rod can restrict their movement, ensuring that the caught crabs are firmly trapped in the net, greatly improving the integrity of the fishing results and reducing losses caused by the escape of crabs.

[0025] 2. In this utility model, the angle adjustment component allows users to flexibly adjust the angle of the fishing net according to different water conditions. In areas with rapid currents, the fishing net can be adjusted to an angle perpendicular to the direction of the current to better intercept crabs flowing downstream; in areas with abundant aquatic plants, the angle of the net can be adjusted to facilitate deep-penetration fishing through the gaps in the aquatic plants, improving the accuracy and success rate of the catch. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an adjustable crab-catching net proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of an adjustable crab-catching net proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the limiting plate of an adjustable crab catching net proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of a gear in an adjustable crab-catching net proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the spring in an adjustable crab-catching net proposed in this utility model;

[0031] Figure 6This is a schematic diagram of the anti-slip pad structure of an adjustable crab-catching net proposed in this utility model;

[0032] Figure 7 This is a schematic diagram of the slider of an adjustable crab-catching net proposed in this utility model.

[0033] Legend:

[0034] 1. Fixed rod; 2. Outer shell one; 3. Limiting plate; 4. Telescopic rod; 5. Lifting shell; 6. Fixing bolt; 7. Anti-slip pad; 8. Connecting block one; 9. Fishing net; 10. Connecting rod one; 11. Protective layer; 12. Dual-head motor; 13. Gear one; 14. Limiting rotating block; 15. Outer shell; 16. Connecting rod two; 17. Anti-escape rod; 18. Gear two; 19. Outer shell two; 20. Sliding rod; 21. Spring; 22. Connecting block two; 23. Slide groove; 24. Spring push rod; 25. Sliding block; 26. Fixed plate. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figure 1 , Figure 3 and Figure 5 An embodiment of this utility model is provided: an adjustable crab catching net, including two fixed rods 1, with a length adjustment component and a snap-fit ​​installation component respectively provided at the ends of the two fixed rods 1, and a housing 2 fixedly connected to the other end of one of the fixed rods 1, with an angle adjustment component provided inside the housing 2, and a housing 15 fixedly connected to the outside of the housing 2, with a recovery component provided inside the housing 15.

[0037] The recovery assembly includes a second outer shell 19, which is rotatably connected to the inner side of the end of the outer shell 15. A sliding rod 20 is slidably connected to the inner side of the second outer shell 19, and a spring 21 is sleeved on the outer side of the sliding rod 20. One end of the spring 21 is located on the inner side of the bottom of the second outer shell 19, and the other end of the spring 21 is located on the inner side of the end of the sliding rod 20. A second connecting rod 16 is rotatably connected to the inner side of the outer shell 15, and a fixing plate 26 is fixedly connected to the outer side of the middle part of the second connecting rod 16. The fixing plate 26 is rotatably connected to the inside of the outer shell 15, and the bottom of the sliding rod 20 is rotatably connected to the outer side of the fixing plate 26. When the net is subjected to external force, such as when a crab enters the fishing net 9, the second connecting rod 16 will rotate. The second connecting rod 16 will drive the fixing plate 26 to rotate, and the fixing plate 26 will press the sliding rod 20, causing the sliding rod 20 to slide within the second outer shell 19 and compress the spring 21. After the external force disappears, the elastic restoring force of spring 21 pushes sliding rod 20 to slide in the opposite direction, causing fixed plate 26 and connecting rod 26 to rotate in the opposite direction, restoring the net to its initial state, ensuring the net continues to work normally, and extending its service life. Multiple escape-prevention rods 17 are fixedly connected to the outside of connecting rod 26, and multiple limiting blocks 14 are rotatably connected to the outside of connecting rod 10. The inner ends of the multiple limiting blocks 14 are rotatably connected to the outside of connecting rod 10. When crabs enter the fishing net 9 and attempt to climb or struggle to escape, the escape-prevention rods 17 block their movement. The limiting blocks 14 connect and limit the connection between connecting rod 10 and connecting rod 26, ensuring the relative position of the escape-prevention rods 17 is stable, effectively preventing crabs from escaping from the net, and improving the integrity of the fishing results.

[0038] Reference Figure 2 and Figure 4 The angle adjustment assembly includes a connecting rod 10, with both ends of the connecting rod 10 rotatably connected to the inner sides of both ends of a housing 2. Gears 13 are rotatably connected to the inner sides of both ends of the housing 2, and the two gears 13 are fixedly connected to the two ends of the connecting rod 10. A dual-head motor 12 is fixedly connected to the inner side of the housing 2, and gears 18 are rotatably connected to the inner sides of both ends of the housing 2. The two gears 18 are fixedly connected to the output ends of the dual-head motor 12, and are meshed with the outer sides of the two gears 13. When the dual-head motor 12 is started, it drives the gears 18 to rotate. Because the gears 18 mesh with the gears 13, the rotation of the gears 18 drives the rotation of the gears 13. Since gear 13 is fixed at both ends of connecting rod 10, the rotation of gear 13 causes connecting rod 10 to rotate inside both ends of outer shell 2, thereby driving the fishing net 9 on the outside of connecting rod 10 to change its angle, so as to meet the needs of fishing angle in different water environments, such as intercepting river crabs at a vertical angle to the water flow in areas with rapid currents, and adjusting the angle to go deep into the gaps between aquatic plants to catch them in areas with aquatic plants.

[0039] Reference Figure 1 and Figure 5The length adjustment assembly includes a lifting shell 5, which is fixedly connected to the outside of one of the fixed rods 1. A telescopic rod 4 is slidably connected to the inside of the lifting shell 5. Multiple holes are formed on the inside of the telescopic rod 4, and a hole is also formed on the inside of the end of the lifting shell 5. Fixing bolts 6 are installed inside the holes of the telescopic rod 4 and the lifting shell 5. When the net length needs to be adjusted, the operator first unscrews the fixing bolts 6 from the holes of the telescopic rod 4 and the lifting shell 5, allowing the telescopic rod 4 to slide freely within the lifting shell 5. The telescopic rod 4 is then pulled out or pushed into the lifting shell 5. After adjusting to the appropriate length, the fixing bolts 6 are reinserted into the corresponding holes of the telescopic rod 4 and the lifting shell 5 and tightened to fix the position of the telescopic rod 4, thus completing the net length adjustment to meet the needs of different fishing areas.

[0040] Reference Figure 4 , Figure 6 and Figure 7 The installation assembly includes a first connecting block 8, which is fixedly connected to the side of another first connecting block 8. A second connecting block 22 is slidably connected to the inside of the first connecting block 8. The side of the second connecting block 22 is fixedly connected to the outer end of the telescopic rod 4. Multiple sliding grooves 23 are formed on the outer side of the second connecting block 22. Multiple sliders 25 are fixedly connected to the inside of the first connecting block 8. Spring push rods 24 are installed on the inner side of the ends of the multiple sliding grooves 23. The multiple sliders 25 are slidably connected to the inner side of the sliding grooves 23 and are respectively located on the outer side of the multiple spring push rods 24. When the second connecting block 22 is aligned with the first connecting block 8 and inserted, the sliding grooves 23 on the outer side of the second connecting block 22 and the sliders 25 on the inner side of the first connecting block 8 cooperate with each other, and the sliders 25 slide within the sliding grooves 23. When the slider 25 slides to the end of the groove 23, it compresses the spring push rod 24 to produce elastic deformation. The reverse thrust of the spring push rod 24 makes the slider 25 stably stuck in the groove 23, realizing the tight connection between the connecting block 1 8 and the connecting block 22, thereby completing the reliable connection of the two fixed rods 1 and ensuring the overall structural stability of the net.

[0041] Reference Figure 1 , Figure 2 and Figure 3 Multiple fishing nets 9 are installed on the outer side of the connecting rod 10, and multiple protective layers 11 are fixedly connected to the outer side of the connecting rod 10. The protective layers 11 can protect the nets and internal structure during the fishing process and reduce damage caused by collisions and friction. A limiting plate 3 is fixedly connected to the outer side of the connecting rod 10, and multiple escape-prevention rods 17 are all set at the bottom of the limiting plate 3. The limiting plate 3 effectively restricts the position of the escape-prevention rods 17. An anti-slip pad 7 is fitted on the outer side of one of the fixed rods 1. The anti-slip pad 7 increases the friction between the operator's hand and the fixed rod 1.

[0042] Working principle: First, unscrew the fixing bolt 6 from the holes in the telescopic rod 4 and the lifting shell 5. At this time, the telescopic rod 4 can slide freely inside the lifting shell 5. According to the actual fishing needs, pull out or push the telescopic rod 4 into the lifting shell 5, adjust it to a suitable length, and then reinsert the fixing bolt 6 into the corresponding holes in the telescopic rod 4 and the lifting shell 5 and tighten it, thereby fixing the position of the telescopic rod 4 and realizing the adjustment of the net length.

[0043] Then, the dual-head motor 12 is started to drive gear 18 to rotate. Since gear 18 meshes with gear 13, the rotation of gear 18 will drive gear 13 to rotate. The rotation of gear 13 will cause the connecting rod 10 to rotate inside both ends of the outer casing 2, thereby adjusting the angle of the fishing net 9 outside the connecting rod 10.

[0044] Finally, after the crab enters the fishing net 9, the escape-prevention rod 17 prevents the crab from escaping, thus preventing escape. Simultaneously, the limiting block 14 connects and limits the connection between connecting rod 10 and connecting rod 16, ensuring the relative stability of the escape-prevention rod 17. When the crab first enters the fishing net 9, its weight causes the escape-prevention rod 17 to rotate downwards. This downward rotation of the escape-prevention rod 17 also causes the fixing plate 26 to rotate. After the escape-prevention rod 17 rotates downwards, the crab falls into the fishing net 9, and the fixing plate 26, under the elastic force of the spring 21, causes the escape-prevention rod 17 to rotate upwards to return to its original position.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable crab-catching net, comprising two fixed rods (1), characterized in that: The two fixed rods (1) are respectively provided with a length adjustment component and a snap-fit ​​installation component at their ends. One of the fixed rods (1) is fixedly connected to a housing (2) at the other end. An angle adjustment component is provided inside the housing (2). A housing (15) is fixedly connected to the outside of the housing (2). A restoration component is provided inside the housing (15). The restoration component includes a second outer shell (19), which is rotatably connected to the inner side of the end of the housing (15). A sliding rod (20) is slidably connected to the inner side of the second outer shell (19). A spring (21) is sleeved on the outer side of the sliding rod (20). The end of the spring (21) is located on the inner side of the bottom of the second outer shell (19), and the other end of the spring (21) is located on the inner side of the end of the sliding rod (20). A second connecting rod (16) is rotatably connected to the inner side of the housing (15). A fixing plate (26) is fixedly connected to the outer side of the middle part of the second connecting rod (16). The fixing plate (26) is rotatably connected to the inside of the housing (15), and the bottom of the sliding rod (20) is rotatably connected to the outer side of the fixing plate (26).

2. The adjustable crab-catching net according to claim 1, characterized in that: The angle adjustment assembly includes a connecting rod (10), the two ends of which are rotatably connected to the inner sides of the two ends of the outer casing (2). Gears (13) are rotatably connected to the inner sides of both ends of the outer casing (2). The two gears (13) are fixedly connected to the two ends of the connecting rod (10). A dual-head motor (12) is fixedly connected to the inner side of the outer casing (2). Gears (18) are rotatably connected to the inner sides of both ends of the outer casing (2). The two gears (18) are fixedly connected to the output end of the dual-head motor (12). The two gears (18) are meshed with the outer sides of the two gears (13).

3. The adjustable crab-catching net according to claim 1, characterized in that: The length adjustment assembly includes a lifting shell (5), which is fixedly connected to the outside of one of the fixed rods (1). A telescopic rod (4) is slidably connected to the inside of the lifting shell (5). Multiple holes are opened on the inside of the telescopic rod (4). A hole is also opened on the inside of the end of the lifting shell (5). Fixing bolts (6) are installed on the inside of the holes of the telescopic rod (4) and the lifting shell (5).

4. The adjustable crab-catching net according to claim 3, characterized in that: The installation assembly includes a first connecting block (8), which is fixedly connected to the side of one of the first connecting blocks (8). A second connecting block (22) is slidably connected to the inside of the first connecting block (8). The side of the second connecting block (22) is fixedly connected to the outside of the end of the telescopic rod (4). Multiple sliding grooves (23) are provided on the outside of the second connecting block (22). Multiple sliders (25) are fixedly connected to the inside of the first connecting block (8). Spring push rods (24) are installed on the inside of the ends of the multiple sliding grooves (23). The multiple sliders (25) are slidably connected to the inside of the sliding grooves (23). The multiple sliders (25) are respectively arranged on the outside of the multiple spring push rods (24).

5. The adjustable crab-catching net according to claim 2, characterized in that: Multiple fishing nets (9) are provided on the outside of the connecting rod (10), and multiple protective layers (11) are fixedly connected to the outside of the connecting rod (10).

6. The adjustable crab-catching net according to claim 2, characterized in that: Multiple anti-escape rods (17) are fixedly connected to the outside of the second connecting rod (16), and multiple limiting blocks (14) are rotatably connected to the outside of the second connecting rod (16). The inner side of the ends of the multiple limiting blocks (14) are rotatably connected to the outside of the first connecting rod (10).

7. The adjustable crab-catching net according to claim 6, characterized in that: The connecting rod (10) is fixedly connected to the limiting plate (3) on the outside, and multiple escape prevention rods (17) are all set at the bottom of the limiting plate (3).

8. The adjustable crab-catching net according to claim 1, characterized in that: One of the fixing rods (1) is fitted with an anti-slip pad (7) on its outer side.

Images