Crab catcher

Abstract

The utility model discloses a crab trapper which comprises an N-polygon net body, N is larger than or equal to 6, the net body is manufactured in an integrated injection molding mode, and an adjustable balance weight body is arranged at the bottom of the center of the net body. A bait bin is installed on the balance weight body, a cross-shaped guide ring is arranged on the top of the bait bin, a lead hole is formed in each vertex of the net body, and N sets of pull wires penetrate through the lead holes respectively, then wind around the cross-shaped guide ring by a circle and then converge at the top. According to the structure, the bait bin is designed, and the cross-shaped guide ring capable of freely rotating is designed at the top of the bait bin, so that the uniformity of the structure in the net drawing process is improved, and the uniform net drawing effect is achieved; by designing the bait bin, the bait bin is not limited to block feed in the using process, bulk feed can also be used as bait, the using range is wider, and the attracting effect of the bait can be kept for a long time; the net body of the structure is formed through integrated injection molding, batch production can be achieved, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of aquatic product catching tools, specifically relating to a crab catcher. Background Technology

[0002] In existing technologies, crab traps designed for crab catching are generally long and narrow, open at one end and closed at the other, resulting in extremely low crab-catching efficiency. Therefore, a new type of crab-catching tool needs to be developed. Patent CN202323475945.2 discloses a crab trap, describing it as including a counterweight, a baiting unit, a mesh cage, and a traction rope, which unfolds into an open net structure. When the net is retrieved, the traction rope is pulled to tighten the net opening, thus catching the crab. However, the solution described in this patented technology involves hanging the bait on the center line via a bait-hanging unit, which can only secure large pieces of bait. Moreover, once the bait is eaten, the entire trap loses its attracting effect. On the other hand, the trap described in this patented technology uses a traction rope that passes through a guide ring, and the net is closed by pulling the traction rope. This design makes it difficult to achieve uniform net retrieval, and crabs can still easily escape. Furthermore, the cage described in this technology requires manual pressing of metal balls into a net and manual threading of the rope during the manufacturing process, which requires a high labor cost and is not suitable for large-scale production. Therefore, based on the above-mentioned defects of the existing technology, it is necessary to develop a new type of crab trap. Summary of the Invention

[0003] Purpose of the utility model: The purpose of this utility model is to address the shortcomings of the existing technology by providing a crab catcher that is easy to mass-produce, low in cost, and highly stable in practice.

[0004] Technical Solution: The present invention discloses a crab catcher comprising an N-sided net body, wherein N≥6, the net body being integrally injection molded, and an adjustable counterweight being provided at the bottom center of the net body; a bait compartment is installed on the counterweight, and a cross guide ring is provided at the top of the bait compartment; a lead wire hole is provided at each vertex of the net body, and N sets of traction lines pass through one lead wire hole respectively, then circle around the cross guide ring and converge at the top.

[0005] Furthermore, to be suitable for different working environments, the counterweight is detachably fixed to the center bottom of the net body by bolt assembly; different types of counterweights can be installed as needed.

[0006] Furthermore, to facilitate the filling or replacement of bait, the bait compartment includes an upper compartment and a lower compartment. The upper compartment and the lower compartment are fixedly connected on one side by a connector, and on the other side by a snap-fit ​​structure designed on the upper and lower compartments. The design of the bait compartment allows the catcher to use not only block bait but also loose bait.

[0007] Furthermore, as a preferred embodiment, the upper compartment is provided with a latch, and the lower compartment is provided with a slot. The upper compartment and the lower compartment are engaged by pressing the latch into the slot.

[0008] Furthermore, to avoid problems such as tangling and jamming during net retrieval, a connecting hole is provided at the top of the upper compartment, and a connecting rod is located vertically below the center of the cross guide ring. The connecting rod passes through the connecting hole and is fixed by a limiting component, thus connecting the cross guide ring to the bait compartment. The inner diameter of the connecting hole is larger than the outer diameter of the connecting rod, allowing the cross guide ring and the bait compartment to rotate relative to each other after connection. This design helps to evenly close the net during retrieval, avoiding the problem of crabs escaping due to one side of the net closing well while the other side is not properly closed.

[0009] Furthermore, to facilitate mass production, the mesh is composed of several evenly arranged warp and weft threads intersecting each other.

[0010] Furthermore, to minimize the problem of tangling during the net-closing process, one end of each set of traction lines is first wrapped around the cross guide ring and then inserted into the lead wire hole, and then passed through the inside of the cross guide ring to meet the other end.

[0011] Furthermore, to facilitate users' observation of whether the crab has been successfully caught, a float is also installed on the traction line where the cross guide rings converge at the top.

[0012] Beneficial effects: (1) By designing a bait compartment and a freely rotating cross guide ring on the top of the bait compartment, this structure improves the uniformity of the net collection process, achieving a uniform net collection effect and avoiding the problem of crabs escaping during the net collection process; (2) By designing a bait compartment, it is not limited to block material during use, but can also use loose material as bait, which has a wider range of applications and can maintain the bait's attraction effect for a longer period of time; (3) The net body of this structure is integrally injection molded, which can realize mass production, greatly improving production efficiency. Moreover, it has strong reliability during use, overcoming the problem of relying on manual production and inconsistent product quality in the existing technology. Attached Figure Description

[0013] Figure 1 This is a top view of the overall structure of this utility model;

[0014] Figure 2 This is a bottom view of the overall structure of this utility model;

[0015] Figure 3 This is a side view of the overall structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the bait compartment structure of this utility model;

[0017] The components are: 1. Hexagonal mesh, 11. Lead hole, 2. Counterweight, 3. Bait compartment, 31. Upper compartment, 32. Lower compartment, 33. Connector, 4. Cross guide ring, 41. Connecting rod, 5. Traction line. Detailed Implementation

[0018] 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.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element; the terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Example 1: As Figure 1-4As shown, this solution describes a crab trap, including a hexagonal net body 1, which is integrally injection molded and forms several evenly interlaced warp and weft lines; an adjustable counterweight 2 is provided at the bottom center of the net body, which is detachably fixed to the bottom center of the net body by bolt assembly to adapt to different working environments; different types of counterweights can be installed as needed; a bait compartment 3 is installed on the counterweight body, which includes an upper compartment 31 and a lower compartment 32 for easy filling or replacement of bait. The upper compartment 31 and the lower compartment 32 are fixedly connected on one side by a connector 33, and on the other side by the upper compartment 31. The upper compartment 31 and the lower compartment 32 are designed with a snap-fit ​​structure for snap-fit ​​connection; the upper compartment 31 is provided with a snap-fit ​​tongue, and the lower compartment 32 is provided with a snap-fit ​​groove. The snap-fit ​​connection between the upper compartment 31 and the lower compartment 32 is achieved by pressing the snap-fit ​​tongue into the snap-fit ​​groove; in order to avoid problems such as tangling and jamming of the line during the net retrieval process, the top of the upper compartment 31 is provided with a connecting hole, and a connecting rod 41 is provided vertically below the center of the cross guide ring 4. The connecting rod 41 passes through the connecting hole and is fixed by a limiting member to achieve the connection between the cross guide ring 4 and the bait compartment 3. The inner diameter of the connecting hole is slightly larger than the outer diameter of the connecting rod 41, so that the cross guide ring 4 and the bait compartment 3 can rotate relative to each other after being connected. This design helps to evenly close the net during the hauling process, avoiding the problem of crabs escaping because one side of the net is closed but the other side is not properly closed. Each vertex of the net body 1 is provided with a lead hole 11. One end of each set of traction lines 5 is first wrapped around the cross guide ring 4 and then passed through the lead hole 11. Then it passes through the inside of the cross guide ring 4 and meets the other end. The six sets of traction lines 5 pass through a lead hole 11 respectively and then meet at the top. Then the float is installed.

[0021] During use, first put an appropriate amount of bait into the bait compartment, then put it into the water. When the float sinks, it means that a crab has entered the net. At this time, you can pull the traction line to pull in the net and complete the crab catching process.

[0022] This structure improves the uniformity of net retrieval by designing a bait compartment with a freely rotating cross-shaped guide ring at the top, achieving a uniform retrieval effect and preventing crabs from escaping during the process. The bait compartment design allows for the use of loose bait, not just block bait, thus broadening its application and maintaining the bait's attractiveness for a longer period. The net body is integrally injection molded, enabling mass production and significantly improving production efficiency. Furthermore, it boasts high reliability during use, overcoming the problems of inconsistent product quality caused by reliance on manual production in existing technologies.

[0023] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A crab catcher, characterized in that: The net includes an N-sided net body, where N≥6, which is integrally injection molded. An adjustable counterweight is provided at the bottom center of the net body. A bait compartment is installed on the counterweight, and a cross guide ring is provided at the top of the bait compartment. A lead wire hole is provided at each vertex of the net body. N sets of traction lines pass through one lead wire hole, then circle around the cross guide ring and converge at the top.

2. The crab catcher according to claim 1, characterized in that: The counterweight is detachably fixed to the bottom center of the net body by a bolt assembly.

3. The crab catcher according to claim 1, characterized in that: The bait compartment includes an upper compartment and a lower compartment. The upper compartment and the lower compartment are fixedly connected on one side by a connector, and on the other side by a snap-fit ​​structure designed on the upper compartment and the lower compartment.

4. The crab catcher according to claim 3, characterized in that: The upper compartment is provided with a latch, and the lower compartment is provided with a slot. The upper compartment and the lower compartment are engaged by pressing the latch into the slot.

5. The crab catcher according to claim 4, characterized in that: The top of the upper chamber is provided with a connecting hole, and a connecting rod is provided vertically below the center of the cross guide ring. The connecting rod passes through the connecting hole and is fixed by a limiting member to realize the connection between the cross guide ring and the bait chamber. The inner diameter of the connecting hole is larger than the outer diameter of the connecting rod, so that the cross guide ring and the bait chamber can rotate relative to each other after being connected.

6. The crab catcher according to claim 1, characterized in that: The mesh is composed of several evenly arranged warp and weft lines intersecting each other.

7. The crab catcher according to claim 1, characterized in that: Each set of traction wires is first wound around the cross guide ring once, then passed through the lead wire hole, and then passed through the inside of the cross guide ring to meet the other end.

8. The crab catcher according to claim 7, characterized in that: A float is also installed on the traction line after the cross guide rings converge at the top.

Images