River crab catching device

By designing a crab-catching device with an outer shell, inclined plate, guiding mechanism, and limiting structure, the problem of easy leg breakage during crab catching was solved, achieving safe catching and stable device.

CN223585083UActive Publication Date: 2025-11-25JIANGSU JIUZHOU NOAH AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423279019.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-11-25
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

River crabs are prone to leg breakage during harvesting, and existing equipment poses a risk of damaging the crabs' legs during the harvesting process.

Method used

A crab-catching device was designed, including an outer shell, an inclined plate, an induction mechanism, a limiting ring, and a barrier block. The inclined plate guides the crab into the outer shell, and the limiting ring and barrier block ensure that the crab does not climb out. The device is fixed in the soil by the limiting ring and positioning nails to prevent it from being washed away by the river. At the same time, anti-slip strips are set to increase friction and a permeable plate is set to drain water.

Benefits of technology

It effectively prevents leg injuries to crabs during the fishing process, ensures the crabs safely enter the fishing device, and the device is stable and not easily washed away by the river, thus improving fishing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a river crab catching device which comprises a shell, a fixing plate is fixedly connected to the outer surface of the shell, an inclined plate is fixedly connected to the outer surface of the fixing plate, an induction mechanism is fixedly connected to the inner wall of the shell and comprises a fixing box, the fixing box is fixedly connected to the inner wall of the shell, and the inclined plate is fixedly connected to the outer surface of the fixing plate. A limiting ring is fixedly connected to the inner wall of the fixing box, a rotating block is rotatably connected to an inner cavity of the limiting ring, a partition plate is fixedly connected to the end of the rotating block, a blocking block is fixedly connected to the inner wall of the fixing box, and the blocking block and the partition plate are matched in an extrusion mode. The river crab catching device has the effect that river crabs cannot be damaged when the river crabs are taken out.
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Description

TECHNICAL FIELD

[0001] The utility model relates to river crab fishing technical field especially relates to a river crab fishing device. BACKGROUND

[0002] River crab fishing is the key link of river crab breeding industry harvest, and is related to the economic benefits of breeders. With the growth of river crab, the choice of fishing time is very important. Usually according to the degree of gonad development of river crab, crab yellow fullness and market demand to judge, generally in autumn, when the water temperature begins to drop, river crab crab yellow is full, and crab meat is compact, which is the best fishing period. There are various fishing tools, and ground cage is the most common one, which is woven by polyethylene material with medium mesh, in the form of long cylinder, with bait inside, placed at the bottom of crab pond along the climbing path of river crab, and river crab is difficult to escape after entering. There is also crab cage, which utilizes the phototaxis and water tracing of river crab, and is set on the migration channel of river crab, like a fence, and river crab is intercepted and captured when flowing upstream at night.

[0003] The utility model discloses a kind of fishing devices of early market river crab, and its technical scheme points are as follows: setting bait box and night light, for solving the problem of poor river crab attracting and fishing effect, setting limiting structure, for solving the problem of not being able to be placed in different positions of breeding pond for fishing operation;Through the night light in the transparent box, it is convenient to pass through light at night, and then utilize the phototaxis of river crab, so that river crab is more likely to approach the inside of cage body, and utilize the bait in the bait box, so that river crab is more quickly through crab entrance and enters the inside of cage body;Through the elastic force of limiting spring, the limiting block is slid to restore original position, the top opening of fixing ring is shielded, to avoid accidental separation of connecting rope and fixing ring, and then cage body can be placed in different positions in breeding pond for fishing river crab operation, and connecting rope and cage body can be disassembled, and then it is convenient to store.

[0004] Similar to the above application, the following deficiencies still exist:

[0005] River crab is easy to break legs when taking out. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of river crab fishing devices, to solve the technical problem that river crab is easy to break legs when taking out.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides a kind of river crab fishing device, including shell, the outer surface of the shell is fixedly connected with fixed plate, the outer surface of the fixed plate is fixedly connected with inclined plate, the inner wall of the shell is fixedly connected with inducing mechanism, the inducing mechanism includes fixed box, the inner wall of the fixed box is fixedly connected in shell, the inner wall of the fixed box is fixedly connected with limit ring, the inner cavity of the limit ring is rotatably connected with rotating block, the end of the rotating block is fixedly connected with baffle, the inner wall of the fixed box is fixedly connected with blocking block, the blocking block is pressed with baffle adaptation.

[0009] By setting inclined plate, river crab can climb to the opening of shell, by setting inducing mechanism, river crab can be induced, and after river crab enters the inner cavity of shell, river crab cannot run out of the inner cavity of shell, and the inducing material can be replaced conveniently, by setting limit ring, rotating block can be limited, so that rotating block can stably rotate in the inner cavity of limit ring, and then baffle shakes, by setting blocking block, baffle can only rotate in single direction, so that after river crab enters the inner cavity of shell, river crab cannot climb out.

[0010] In a preferred embodiment, the limit ring is fixedly connected to the corner of the lower surface of the shell, the inner cavity of the limit ring is slidably connected with the positioning nail, the upper surface of the inclined plate is fixedly connected with the anti-skid strip, the number of the anti-skid strip is several, and the several anti-skid strips are uniformly distributed, and the bottom surface of the inner cavity of the shell penetrates the water-permeable plate.

[0011] By setting the limit ring, the positioning nail can be limited to move up and down, by setting the positioning nail, the soil can be inserted into the soil, so that the shell cannot be washed away by the river water, by setting the anti-skid strip, the friction force of the river crab on the upper surface of the inclined plate can be increased, and by setting the water-permeable plate, the water in the inner cavity of the shell can be discharged.

[0012] In a preferred embodiment, the inner cavity of the fixed box is slidably connected with the sliding frame, the upper surface of the sliding frame is fixedly connected with the handle, the inner cavity of the sliding frame is slidably connected with the sliding rod, the outer surface of the sliding rod is sleeved with the spring, the bottom end of the spring is fixedly connected to the upper surface of the sliding frame, the bottom end of the sliding rod is fixedly connected with the clamping plate, and the upper surface of the clamping plate is provided with bait.

[0013] By setting the handle, the movement of the sliding frame can be facilitated, by setting the sliding rod, the sliding rod can slide in the inner cavity of the sliding frame, so that the sliding rod can move up and down, by setting the spring, the sliding rod can be pulled, and by setting the clamping plate, the bait can be clamped by the clamping plate when the sliding rod is pulled upward.

[0014] From the above, a river crab fishing device, compared with the prior art, has the following improvements and advantages.

[0015] One: by setting the inclined plate, the river crab can climb to the opening of the shell, by setting the induction mechanism, the river crab can be induced, and after the river crab enters the inner cavity of the shell, the river crab will not run out of the inner cavity of the shell, and the induction material can be replaced conveniently.

[0016] Second: by setting the limiting ring, the rotating block can be limited, so that the rotating block can produce stable rotation in the inner cavity of the limiting ring, and then the baffle can produce shaking, by setting the blocking block, the baffle can only produce unidirectional rotation, and then the river crab will not climb out after entering the inner cavity of the shell. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of a river crab fishing device is provided.

[0018] Figure 2 A partial structure diagram of a river crab fishing device is provided.

[0019] Figure 3 An induction mechanism diagram of a river crab fishing device is provided.

[0020] Figure 4 A partial induction mechanism diagram of a river crab fishing device is provided.

[0021] In the drawings: 1, shell; 2, limiting ring; 3, positioning nail; 4, inclined plate; 5, fixed plate; 6, anti-skid strip; 7, water permeable plate; 8, induction mechanism; 81, fixed box; 82, limiting ring; 83, rotating block; 84, baffle; 85, blocking block; 86, sliding frame; 87, handle; 88, sliding rod; 89, spring; 810, clamping plate; 811, bait. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0023] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0024] The utility model discloses a kind of river crab fishing devices mainly applied to the scene when river crab is taken out, leg is easily broken.

[0025] With reference to Figure 1 Figure 3 A river crab fishing device, comprising an outer shell 1, the outer surface of the outer shell 1 is fixedly connected with a fixed plate 5, the outer surface of the fixed plate 5 is fixedly connected with an inclined plate 4, the inner wall of the outer shell 1 is fixedly connected with an induction mechanism 8, the induction mechanism 8 comprises a fixed box 81, the fixed box 81 is fixedly connected at the inner wall of the outer shell 1, the inner wall of the fixed box 81 is fixedly connected with a limiting ring 82, the inner cavity of the limiting ring 82 is rotatably connected with a rotating block 83, the end of the rotating block 83 is fixedly connected with a partition plate 84, the inner wall of the fixed box 81 is fixedly connected with a blocking block 85, the blocking block 85 is extruded and matched with the partition plate 84, by setting the inclined plate 4, the river crab can climb to the opening of the outer shell 1, by setting the induction mechanism 8, the river crab can be induced, and after the river crab enters the inner cavity of the outer shell 1, the river crab will not run out of the inner cavity of the outer shell 1, and the induction material can be replaced conveniently, by setting the limiting ring 82, the rotating block 83 can be limited, so that the rotating block 83 can produce stable rotation in the inner cavity of the limiting ring 82, and then the partition plate 84 shakes, by setting the blocking block 85, the partition plate 84 can only produce unidirectional rotation, and then the river crab will not climb out after entering the inner cavity of the outer shell 1.

[0026] With reference to Figure 1 And Figure 2 In a preferred embodiment, the edge corners of the lower surface of the outer shell 1 are fixedly connected with a limiting ring 2, the inner cavity of the limiting ring 2 is slidably connected with a positioning nail 3, by setting the limiting ring 2, the positioning nail 3 can be limited, so that the positioning nail 3 can produce the effect of moving up and down, by setting the positioning nail 3, it can be inserted into the soil, and then the outer shell 1 will not be washed away by river water, the upper surface of the inclined plate 4 is fixedly connected with an anti-skid strip 6, the number of the anti-skid strip 6 is several, and the several anti-skid strips 6 are evenly distributed, by setting the anti-skid strip 6, the friction force of the river crab on the upper surface of the inclined plate 4 can be increased, the bottom surface of the inner cavity of the outer shell 1 penetrates a water-permeable plate 7, by setting the water-permeable plate 7, the water in the inner cavity of the outer shell 1 can be discharged.​

[0027] Referring to Figure 1 , Figure 3 and Figure 4 , in a preferred embodiment, the inner cavity of the fixed box 81 is slidably connected with a sliding frame 86, the upper surface of the sliding frame 86 is fixedly connected with a handle 87, by setting the handle 87, the operator can conveniently move the sliding frame 86, the inner cavity of the sliding frame 86 is slidably connected with a sliding rod 88, the outer surface of the sliding rod 88 is sleeved with a spring 89, the bottom end of the spring 89 is fixedly connected with the upper surface of the sliding frame 86, by setting the sliding rod 88, the sliding rod 88 can slide in the inner cavity of the sliding frame 86, and the sliding rod 88 can move up and down, by setting the spring 89, the sliding rod 88 can be pulled, the bottom end of the sliding rod 88 is fixedly connected with a clamping plate 810, the upper surface of the clamping plate 810 is provided with bait 811, by setting the clamping plate 810, when the sliding rod 88 is pulled upward, the clamping plate 810 can clamp the bait 811.

[0028] Working principle: in use, the operator presses the sliding rod 88, then places the bait 811 on the upper surface of the clamping plate 810, then under the elastic potential of the spring 89, the clamping plate 810 extrudes the bait 811, then the sliding frame 86 is inserted into the inner cavity of the fixed box 81, under the temptation of the bait 811, the river crab climbs up the inclined plate 4 and pushes the partition plate 84, so as to fall into the inner cavity of the shell 1, then under the influence of the gravity of the partition plate 84, the partition plate 84 closes the opening of the fixed box 81, so as to prevent the river crab from climbing out.

[0029] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The replacement can be a partial structure, device, method step replacement, or a complete technical solution. According to the technical scheme of the present application and the utility model concept, equivalent replacement or change should be covered within the protection scope of the present application.

Claims

1. A river crab catching device, comprising a shell (1), the outer surface of the shell (1) is fixedly connected with a fixed plate (5), the outer surface of the fixed plate (5) is fixedly connected with an inclined plate (4), characterized in that, The inner wall of the shell (1) is fixedly connected with an induction mechanism (8), the induction mechanism (8) comprises a fixed box (81), the fixed box (81) is fixedly connected at the inner wall of the shell (1), the inner wall of the fixed box (81) is fixedly connected with a limiting ring (82), the inner cavity of the limiting ring (82) is rotatably connected with a rotating block (83), the end of the rotating block (83) is fixedly connected with a partition plate (84), the inner wall of the fixed box (81) is fixedly connected with a blocking block (85), and the blocking block (85) is in extrusion fit with the partition plate (84).

2. The river crab catching device according to claim 1, characterized in that, The lower surface of the shell (1) is fixedly connected with a limiting ring (2), and the inner cavity of the limiting ring (2) is slidably connected with a positioning nail (3).

3. The river crab catching device according to claim 1, characterized in that, The upper surface of the inclined plate (4) is fixedly connected with an anti-skid strip (6), the number of the anti-skid strip (6) is several, and the several anti-skid strips (6) are uniformly distributed.

4. The river crab catching device according to claim 1, characterized in that, The bottom surface of the inner cavity of the shell (1) penetrates a water permeable plate (7).

5. The river crab catching device according to claim 1, characterized in that, The inner cavity of the fixed box (81) is slidably connected with a sliding frame (86), and the upper surface of the sliding frame (86) is fixedly connected with a handle (87).

6. The river crab catching device according to claim 5, characterized in that, The inner cavity of the sliding frame (86) is slidably connected with a sliding rod (88), the outer surface of the sliding rod (88) is sleeved with a spring (89), and the bottom end of the spring (89) is fixedly connected to the upper surface of the sliding frame (86).

7. The river crab catching device according to claim 6, characterized in that, The bottom end of the sliding rod (88) is fixedly connected with a clamping plate (810), and the upper surface of the clamping plate (810) is provided with bait (811).

Citation Information

Patent Citations

  • Fishing device for river crabs on market early

    CN217609057U