Crab trap

By designing a crab trap with adjustable bait position and a ring-shaped elastic net, the problem of low capture efficiency of traditional crab catching tools has been solved, and efficient capture of crabs of different sizes has been achieved.

CN223568451UActive Publication Date: 2025-11-21JINLING INST OF TECH
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Patent Information

Application Number
CN202423009764.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-21
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Traditional crab-catching tools cannot adjust the bait position, resulting in low catching efficiency and an inability to meet the catching needs of crabs of different sizes.

Method used

A crab trap has been designed, comprising a base, a ring-shaped elastic fishing net, a support rod, a drawstring ring, a lifting rope, and a bait placement platform. The position of the bait placement platform can be adjusted by a limiting device to achieve flexible adjustment of the bait height. Combined with the unfolding and retraction of the ring-shaped elastic fishing net, it can adapt to the fishing needs of crabs of different sizes.

Benefits of technology

It improves the efficiency of crab fishing operations, allows for adjustment of the bait height as needed to accommodate crabs of different sizes, and increases the success rate of fishing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crabbing cage which comprises a base, an annular elastic fishing net, a supporting rod, a binding ring, lifting ropes and a bait placing table, the vertical supporting rod is installed in the center of the upper end of the base, the binding ring is installed at the top of the supporting rod, the side edge of the base is connected with an inner ring of the annular elastic fishing net, and the lifting ropes are connected with an outer ring of the annular elastic fishing net at intervals. The end, away from the annular elastic fishing net, of the multiple lifting ropes are gathered and penetrate through the gathering ring, the lifting ropes are used for pulling the outer ring of the annular elastic fishing net to move towards the gathering ring and are gathered at the gathering ring, the supporting rod is slidably sleeved with a bait containing table, a limiting device is arranged between the bait containing table and the supporting rod, and the bait containing table is used for installing bait. According to the crab catching device, the base is used for supporting the annular elastic catching net capable of being unfolded or folded to catch crabs, the bait containing table and the limiting device are used, the using position of the bait containing table is conveniently adjusted, the using height of bait is adjusted, and therefore the operation efficiency of crab catching is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of crab catching devices, specifically to a kind of crab cage. BACKGROUND

[0002] Generally, the way used by crab hobbyists to catch crabs includes hand-picking, fishing net catching, using crab cage and so on. Among them, the traditional crab cage used has a frame net cage structure, and the making method is to wrap nylon net outside steel wire frame, and to set holes on the net to induce crabs into the cage. When using, the cage with bait is thrown into the bottom of water, and the cage can be pulled out of water by pulling rope.

[0003] However, in the traditional crab catching tool, the placement position of the bait used to induce crabs cannot be adjusted, that is, the height of bait use cannot be adjusted according to the amount of crabs needed to be caught or crabs of different sizes, so that when crabs reach the bait position, they will not move because they can eat the bait, and at most, only the amount of the surface layer can be captured. In addition, it is also impossible to adjust adaptively for crabs of smaller or larger size to ensure the efficiency of catching.

[0004] Therefore, there is an urgent need for a crab cage to solve the problem of low efficiency of traditional crab catching tools. CONTENT OF THE UTILITY MODEL

[0005] The utility model provides a kind of crab cage to solve the problem of low efficiency of traditional crab catching tools according to the deficiencies in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A kind of crab cage, characterized in that: including base, annular elastic fishing net, support rod, convergence ring, pull rope and bait placement platform, the upper end center of the base is installed with vertical support rod, the top of the support rod is installed with convergence ring, the side of base is connected with the inner ring of annular elastic fishing net, the outer ring of annular elastic fishing net is connected with several pull ropes at intervals, the end of several pull ropes away from annular elastic fishing net converges and passes through the convergence ring, pull rope is used to move the outer ring of annular elastic fishing net to convergence ring and converge at convergence ring, bait placement platform is slidably sleeved on the support rod, limiting device for limiting bait placement platform sliding along support rod is arranged between bait placement platform and support rod, bait placement platform is used to install bait.

[0008] To optimize the above technical solutions, the specific measures taken also include:

[0009] Further, the limiting device comprises a fixing bolt, a bolt hole penetrating to the surface of the supporting rod is formed in the side wall of the bait placing table, and the fixing bolt is threadedly connected in the bolt hole for abutting the connection between the bait placing table and the supporting rod.

[0010] Further, the bait placing table is in a columnar structure, the center of the bait placing table is a through hole for slidingly sleeving on the supporting rod, and a ring of placing grooves is arranged in the middle of the side wall of the bait placing table, and the placing grooves are used for binding the bait.

[0011] Further, the annular elastic fishing net is interlacedly woven by a plurality of elastic steel wires, and the adjacent elastic steel wires are connected in pairs at the ends of the outer ring to form a pointed end structure, and the ends of the plurality of pulling ropes are connected to the pointed end structure at intervals.

[0012] Further, a steel wire ring is arranged at the pointed end structure, and the steel wire ring is used for connecting the ends of the pulling rope.

[0013] Further, an annular shrinkable nylon rope is further arranged, and the annular shrinkable nylon rope passes through the steel wire rings.

[0014] Further, an edge lead sinker is arranged at the pointed end structure.

[0015] Further, the pulling rope is away from the annular elastic fishing net, and a pull ring handle is arranged at the end of the collection ring.

[0016] Further, the length of the pulling rope is not less than the minimum distance from the outer ring of the annular elastic fishing net in the uncollected state to the collection ring.

[0017] Further, the pulling rope is a nylon rope.

[0018] The beneficial effects of the utility model are as follows:

[0019] The utility model discloses a base, annular elastic fishing net, supporting rod, collection ring, pulling rope and bait placing table cooperate and set, utilize the base to support the annular elastic fishing net that can be expanded or collected to catch crab, utilize supporting rod, collection ring and pulling rope, can realize the movement of the outer ring of annular elastic fishing net to the collection ring and be collected at the collection ring, realize the adjustment of annular elastic fishing net expansion or collected state, utilize the bait placing table and limiting device of slidingly sleeving on the supporting rod, can conveniently adjust the use position of bait placing table as required, so that can adjust the bait use height as required according to the required amount of capture or the crab situation of different body shapes, to increase the operation efficiency of crab catching.

[0020] The utility model discloses when using, can need through the rotation fixed bolt unfasten the spacing between the bait placing platform and the support rod, then need to move the use height of adjusting bait placing platform, after again tighten the fixed bolt, realize the close -fitted fixing between bait placing platform and the support rod, adjust conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure development schematic view of a kind of crab cage proposed in the utility model;

[0022] Figure 2 It is the structure half-open schematic view of a kind of crab cage proposed in the utility model;

[0023] Figure 3 It is the structure collection schematic view of a kind of crab cage proposed in the utility model.

[0024] Reference signs: 1, pull rope, 2, edge lead sinker, 3, ring-shaped contraction nylon rope, 4, steel wire ring, 5, bait placing platform, 6, base, 7, pull ring handle, 8, collection ring. DETAILED DESCRIPTION

[0025] The utility model is described in detail below in connection with the drawings.

[0026] As shown in the drawings Figure 1 , the drawings Figure 2 and the drawings Figure 3 , a kind of crab cage of the utility model embodiment, including base 6, annular elastic fishing net, support rod, collection ring 8, pull rope 1 and bait placing platform 5, the upper end center of base 6 is installed with vertical support rod, the top of support rod is installed with collection ring 8, the side of base 6 is connected with the inner ring of annular elastic fishing net, the outer ring of annular elastic fishing net is connected with several pull ropes 1 at intervals, the end of several pull ropes 1 away from annular elastic fishing net converges and passes through collection ring 8, pull rope 1 is used to pull the outer ring of annular elastic fishing net to move towards collection ring 8 and be collected at collection ring 8, bait placing platform 5 is slidably sleeved on support rod, and the spacing device for limiting bait placing platform 5 along support rod sliding is arranged between bait placing platform 5 and support rod, bait placing platform 5 is used to install bait.

[0027] The utility model discloses a cooperation setting of base 6, annular elastic fishing net, support rod, collection ring 8, pull rope 1 and bait placing platform 5, utilize the base 6 support to be expandable or the collection of annular elastic fishing net and utilize support rod, collection ring 8 and pull rope 1, can realize the movement of the outer ring of annular elastic fishing net to collection ring 8 and collection in collection ring 8 place, realize the adjustment of annular elastic fishing net expansion or collection state, utilize the bait placing platform 5 and limiting device of sliding sleeve setting on support rod, can conveniently adjust the use position of bait placing platform 5 as needed, thereby can adjust the bait use height as needed according to the required capture amount or the crab situation of different body shape, to increase the operation efficiency of crab fishing.

[0028] In another specific embodiment, the limiting device includes a fixing bolt, the side wall of the bait placing platform 5 is provided with a bolt hole penetrating the surface of the support rod, and the fixing bolt is threadedly connected in the bolt hole to abut the connection between the bait placing platform 5 and the support rod. In this way, during use, the limiting between the bait placing platform 5 and the support rod can be loosened as needed by rotating the fixing bolt, the use height of the bait placing platform 5 can be adjusted as needed, and then the fixing bolt is tightened to realize the abutting fixation between the bait placing platform 5 and the support rod, facilitating adjustment.

[0029] In another specific embodiment, the bait placing platform 5 is in a columnar structure, the center of the bait placing platform 5 is a through hole for sliding sleeve setting on the support rod, and a ring of placing grooves is arranged in the middle of the side wall of the bait placing platform 5, which is used for binding and installing baits. In this way, during use, baits such as fish meat, shrimp meat, crab feed balls, animal offal, or snail meat can be bound and fixed in the placing grooves by a thin line, and the annular grooves are convenient for attracting crabs around.

[0030] In another specific embodiment, the annular elastic fishing net is interlaced by a plurality of elastic steel wires, and adjacent elastic steel wires are connected in pairs at the ends of the outer ring to form a pointed structure, and the ends of the plurality of pull ropes 1 are connected to the pointed structures at intervals. In this way, the interlaced structure of the plurality of elastic steel wires can avoid mutual interference during switching between the expanded and collected states, and the pointed structures are conducive to the collection of the plurality of pointed structures at the collection ring 8.

[0031] In the further embodiments based on the above, a steel wire ring 4 is installed at each pointed structure, and the steel wire ring 4 is used to connect the ends of the pull rope 1. In this way, through the arrangement of the steel wire ring 4, the ends of the adjacent two elastic steel wires can be reinforced, and the user can adjust the number and position of the pull rope 1 as needed.

[0032] In further embodiments based on the above, a ring-shaped shrinkable nylon rope 3 is further included, and the ring-shaped shrinkable nylon rope 3 passes through the plurality of steel wire loops 4 respectively. In this way, the ring-shaped shrinkable nylon rope 3 is arranged to facilitate the uniform contraction or expansion of the plurality of pointed structures.

[0033] In further embodiments based on the above, an edge lead weight 2 is arranged at each pointed structure. In this way, the edge lead weight 2 is arranged to increase the stability of the device in water in cooperation with the base 6.

[0034] In another specific embodiment, the pulling rope 1 is arranged to pass through the end of the contraction ring 8 and is provided with a pull ring handle 7. In this way, the pull ring handle 7 can be pulled as needed during use to contract the plurality of pulling ropes 1, and the pulling rope 1 can be effectively prevented from slipping out of the contraction ring 8.

[0035] In further embodiments based on the above, the length of the pulling rope 1 is not less than the minimum distance between the outer ring of the ring-shaped elastic fishing net in the uncontracted state and the contraction ring 8. In this way, the complete expansion of the ring-shaped elastic fishing net can be ensured.

[0036] In another specific embodiment, the pulling rope 1 is a nylon rope.

[0037] A specific embodiment of the utility model is as follows:

[0038] First, the fixed bolt is twisted, the bait placement table 5 is moved to the specified position, and the bait is installed after being bound. Then, the device is placed at the specified position, and then the pull ring handle 7 is loosened, the pulling rope 1 is naturally relaxed, the ring-shaped elastic fishing net is in an expanded state due to its own elasticity and the gravity of the edge lead weight 2, the ring-shaped shrinkable nylon rope 3 is expanded, and the device is stably stopped in water due to the gravity of the edge lead weight 2 and the base 6 to catch crabs. During catching, the pull ring handle 7 is pulled, the pulling rope 1 pulls the outer ring of the ring-shaped elastic fishing net upwards to contract it, and the crabs on the ring-shaped elastic fishing net are collected to complete the catching.

[0039] The ring-shaped elastic fishing net of the device can be made of stainless steel, which has low cost, the crabs cannot be damaged by using the pincers, the device has low wear rate, the crabs can be caught at low cost and high efficiency, and the device has great popularization prospect.

[0040] It should be noted that the terms such as "up", "down", "left", "right", "front", "back" and the like cited in the utility model are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model without substantial change in technical content.

[0041] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application are deemed to be within the protection scope of the present application.

Claims

1. A crab trap, characterized in that: The system includes a base (6), an annular elastic fishing net, a support rod, a gathering ring (8), lifting ropes (1), and a bait placement platform (5). A vertical support rod is installed at the center of the upper end of the base (6), and a gathering ring (8) is installed at the top of the support rod. The side of the base (6) is connected to the inner ring of the annular elastic fishing net. Several lifting ropes (1) are connected at intervals to the outer ring of the annular elastic fishing net. The ends of the lifting ropes (1) away from the annular elastic fishing net converge and pass through the gathering ring (8). The lifting ropes (1) are used to pull the outer ring of the annular elastic fishing net toward the gathering ring (8) and gather it at the gathering ring (8). A bait placement platform (5) is slidably sleeved on the support rod. A limiting device is provided between the bait placement platform (5) and the support rod to limit the sliding of the bait placement platform (5) along the support rod. The bait placement platform (5) is used to install bait.

2. The crab trap according to claim 1, characterized in that: The limiting device includes a fixing bolt. The side wall of the bait placement platform (5) has a bolt hole that extends through to the surface of the support rod. The fixing bolt is threaded into the bolt hole and is used to tighten the connection between the bait placement platform (5) and the support rod.

3. A crab trap according to claim 1, characterized in that: The bait placement platform (5) has a columnar structure. The center of the bait placement platform (5) is a through hole for sliding on the support rod. A placement groove is provided in the middle of the side wall of the bait placement platform (5). The placement groove is used to tie and install the bait.

4. A crab trap according to claim 1, characterized in that: The ring-shaped elastic fishing net is woven from several elastic steel wires, and the ends of adjacent elastic steel wires at the outer ring are connected in pairs to form a pointed structure. The ends of several lifting ropes (1) are connected at intervals to form a pointed structure.

5. A crab trap according to claim 4, characterized in that: Each of the pointed structures is equipped with a wire ring (4), which is used to connect the end of the lifting rope (1).

6. A crab trap according to claim 5, characterized in that: It also includes a ring-shaped shrinkable nylon rope (3), which passes through several of the wire loops (4).

7. A crab trap according to claim 4, characterized in that: Each of the pointed structures is fitted with an edge weight (2).

8. A crab trap according to claim 1, characterized in that: The lifting rope (1) is located away from the ring-shaped elastic fishing net and has a pull ring handle (7) at the end that passes through the gathering ring (8).

9. A crab trap according to claim 8, characterized in that: The length of the lifting rope (1) is not less than the minimum distance between the outer ring of the uncontracted ring elastic fishing net and the contracting ring (8).

10. A crab trap according to claim 1, characterized in that: The lifting rope (1) is made of nylon.