Crab catching net

CN224819230UActive Publication Date: 2026-10-09崔竹江
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Patent Information

Application Number
CN202522317177.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-10-09
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

一些捕蟹工具在收束过程中难以快速实现框架聚拢,导致捕捞时易出现蟹类逃逸,影响作业效率;部分装置采用的金属构件缺乏良好的延展性与抗弯曲性能,长期使用后易发生形变,不仅缩短使用寿命,还降低重复使用的便利性;此外,部分装置的牵引绳材质防水、防腐性能较弱,在淡水或海水等不同水域环境中易受侵蚀损坏,适用范围受限

Benefits of technology

[0016]本螃蟹捕抓网操作便捷性强,无需额外手动操作即可实现自动释放,握持与提拉过程轻松省力,能减少实际使用中的操作步骤。其适应能力出色,可在多种打捞环境下稳定使用,不易受环境因素影响而损坏,延长了整体使用周期。同时,捕捞时能有效实现聚拢收束,降低蟹类逃脱的概率,提升捕蟹效率,且可反复使用,进一步增强了整体实用性与经济性。

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Abstract

The utility model relates to fishing technology field and discloses a kind of crab catching nets, to solve the low efficiency of existing crab catching device convergence, easily damaged by environment, tedious operation and poor reusability etc. The utility model is based on counterweight block arranged at center, its outside hinged spring, spring end fixed wire, the end of wire away from spring is equipped with buckle ring, buckle ring is equipped with towrope inside threading;Counterweight block is connected by rope connection connector, connector upper connection tow ring, tow ring top is equipped with handle, and in spring, wire and towrope are assembled crab catching net between. When using, lifting handle can realize device convergence to salvage crab, release handle then enters the state of being caught by gravity automatically opening, convenient operation saves labor, can adapt to a variety of salvage environment, prolongs service period, reduces crab escape probability, improves crab catching efficiency, while having good reusability, enhances overall practicality and economy.
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Description

Technical Field

[0001] This utility model relates to the field of fishery fishing technology, and in particular to a crab catching net. Background Technology

[0002] In the fishing industry, crab-catching tools are crucial for improving operational efficiency. However, some crab-catching devices currently on the market still have many shortcomings that need improvement. Some tools struggle to quickly close their frames during the retraction process, leading to crabs escaping and impacting efficiency. Furthermore, some devices use metal components that lack good ductility and bending resistance, making them prone to deformation after prolonged use, shortening their lifespan and reducing reusability. Additionally, the towing ropes of some devices are poorly waterproof and corrosion-resistant, making them susceptible to erosion and damage in different aquatic environments, such as freshwater and seawater, thus limiting their applicability.

[0003] Meanwhile, some crab-catching tools have problems such as requiring manual assistance to open when releasing them, making the operation steps cumbersome and lacking in portability, which makes it difficult to meet the actual crab-catching operations' demand for efficient, durable, and convenient tools. Utility Model Content

[0004] The purpose of this utility model is to provide a crab catching net.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A crab-catching net includes a central counterweight block with six springs hinged to its exterior. Each spring has a metal wire fixed to its end furthest from the counterweight block. Each metal wire has a locking ring at its end furthest from the spring, and a traction rope is installed inside each locking ring. A connector is connected to the counterweight block via a rope, and a traction ring is connected to the upper part of the connector via a rope. A handle is provided on the upper part of the traction ring. A crab-catching net is positioned between the springs, metal wires, and traction ropes. The crab-catching net is installed crosswise with the metal wires and traction ropes, allowing the crab-catching net to be pulled up simultaneously and evenly when the metal wires and traction ropes are pulled.

[0007] Preferably, the spring is a soft spring.

[0008] Preferably, the buckle rings are a first buckle ring, a second buckle ring, a third buckle ring, a fourth buckle ring, a fifth buckle ring, and a sixth buckle ring.

[0009] Preferably, the traction rope consists of three traction ropes: a first traction rope, a second traction rope, and a third traction rope.

[0010] Preferably, the traction rope is made of nylon or polypropylene.

[0011] Preferably, the spring, the metal wire, and the buckle are integrally formed.

[0012] Preferably, the metal wire is made of 304 stainless steel.

[0013] Preferably, there are six springs, all hinged to the counterweight, and the six springs are hexagonal in shape, which enables better catching.

[0014] Preferably, a connector is fixedly connected to the handle, and the connector has two buckles that can be connected to external components.

[0015] Beneficial effects

[0016] This crab-catching net is highly user-friendly, automatically releasing without any additional manual operation. Holding and pulling it is effortless and reduces the number of steps required in actual use. Its excellent adaptability allows for stable use in various fishing environments, resisting damage from environmental factors and extending its overall lifespan. Furthermore, it effectively gathers and traps crabs during fishing, reducing the probability of escape and improving catching efficiency. Its reusability further enhances its overall practicality and economic benefits.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the crab-catching net installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the buckle ring and traction rope structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of this utility model in the pulled-up state.

[0022] In the diagram: 1-Counterweight; 2-Spring; 3-Metal wire; 4-Snap ring; 401-First snap ring; 402-Second snap ring; 403-Third snap ring; 404-Fourth snap ring; 405-Fifth snap ring; 406-Sixth snap ring; 5-Tethering rope; 501-First traction rope; 502-Second traction rope; 503-Third traction rope; 6-Connector; 7-Tethering ring; 8-Handle; 9-Crab net. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] like Figures 1-4 As shown, a crab-catching net includes a central counterweight 1. The counterweight 1 lowers the center of gravity of the device, ensuring that the lower part is always supported when other components are pulled upwards, preventing them from being dragged down. Six springs 2 are hinged to the outside of the counterweight 1. A metal wire 3 is fixed to the end of each spring 2 furthest from the counterweight 1. By pulling the metal wire 3, the spring 2 is also pulled up, thus achieving the effect of lifting the entire frame. A locking ring 4 is provided at the end of each metal wire 3 furthest from the spring 2. The locking ring 4 is used to attach a traction rope. A traction rope 5 is installed inside the buckle ring 4; a connector 6 is connected to the counterweight 1 by a rope, and a traction ring 7 is connected to the upper part of the connector 6 by a rope; a handle 8 is provided on the upper part of the traction ring 7, which is used to tighten all the traction ropes 5, making it easier for the user to hold and lift the device; a crab-catching net 9 is provided between the spring 2, the metal wire 3 and the traction rope, which is used to wrap the crabs in the device. The crab-catching net 9 is installed crosswise with the metal wire 3 and the traction rope 5, so that when the metal wire 3 and the traction rope 5 are pulled up, the crab-catching net 9 is pulled up evenly at the same time.

[0025] Specifically, spring 2 is a soft spring, which has the technical effect of good mobility and is convenient for use in lifting devices.

[0026] Specifically, the buckle rings 4 are the first buckle ring 401, the second buckle ring 402, the third buckle ring 403, the fourth buckle ring 404, the fifth buckle ring 405, and the sixth buckle ring 406. The crab net 9 is threaded through the first buckle ring 401, the second buckle ring 402, the third buckle ring 403, the fourth buckle ring 404, the fifth buckle ring 405, and the sixth buckle ring 406. Through the cooperation of the first buckle ring 401, the second buckle ring 402, the third buckle ring 403, the fourth buckle ring 404, the fifth buckle ring 405, and the sixth buckle ring 406, the crab net 9 can be pulled up simultaneously.

[0027] Specifically, there are three traction ropes 5: a first traction rope 501, a second traction rope 502, and a third traction rope 503. These three traction ropes 5 can achieve the technical effect of gathering and converging the device. The crab net 9 is threaded between the first traction rope 501, the second traction rope 502, and the third traction rope 503. The crab net 9 can be pulled up simultaneously by the first traction rope 501, the second traction rope 502, and the third traction rope 503.

[0028] Specifically, the towing rope 5 is made of nylon or polypropylene, which has the advantages of corrosion resistance, water resistance, and high strength, and is suitable for various salvage environments.

[0029] Specifically, the spring 2, the metal wire 3, and the buckle ring 4 are integrally molded, resulting in high overall strength and reducing the risk of breakage.

[0030] Specifically, the metal wire 3 is made of 304 stainless steel. 304 stainless steel has high plasticity, toughness and mechanical strength. It is not easy to rust and has strong corrosion resistance. It can be used for a long time in humid and strong acid and alkali environments, which means it can be used in the seabed environment.

[0031] Specifically, there are six springs 2, all hinged to the counterweight. The six springs 2 are hexagonal in shape, which allows for better catching.

[0032] Specifically, a connector is fixedly connected to the handle 8, and the connector has two buckles that can be connected to external components.

[0033] Assembly process:

[0034] One end of the first traction rope 501 is fixed inside the first buckle ring 401, and the other end is first passed through the second buckle ring 402, then through the traction ring 7, and finally fixed inside the handle 8. One end of the second traction rope 502 is fixed inside the third buckle ring 403, and the other end is first passed through the fourth buckle ring 404, then through the traction ring 7, and finally fixed inside the handle 8. One end of the third traction rope 503 is fixed inside the fifth buckle ring 405, and the other end is first passed through the sixth buckle ring 406, then through the traction ring 7, and finally fixed inside the handle 8. After the traction ropes 5 are fixed, the crab net 9 is fixed inside the spring 2, the metal wire 3, and the traction ropes 5.

[0035] When using

[0036] When there are enough crabs in the device, lift the handle 8, which will tighten the traction rope 5. The first traction rope 501 lifts the spring 2 and the metal wire 3 through the first buckle ring 401 and the second buckle ring 402. The second traction rope 502 lifts the spring 2 and the metal wire 3 through the third buckle ring 403 and the fourth buckle ring 404. The third traction rope 503 lifts the spring 2 and the metal wire 3 through the fifth buckle ring 405 and the sixth buckle ring 406. Due to the effect of the counterweight 1, the center of gravity of the device is always on the counterweight 1 in the center, because the middle part will not be lifted when the spring 2, the metal wire 3 and the traction rope 5 are lifted. When all the springs 2 and the metal wire 3 are tightened, the crab-catching net 9 on them forms a catching net, which can easily catch the crabs.

[0037] When fishing is no longer needed, releasing the handle 8 will cause the spring 2, wire 3, buckle ring 4, and crab net 9 to automatically open under their own weight, creating a ready-to-catch state.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A crab-catching net, characterized in that, The device includes a counterweight (1) located at the center, with six springs (2) hinged to the outside of the counterweight (1). Each spring (2) has a metal wire (3) fixed to the end away from the counterweight (1). Each metal wire (3) has a buckle (4) at the end away from the spring (2), and a traction rope (5) is provided inside the buckle (4). A connector (6) is connected to the counterweight (1) by a rope, and a traction ring (7) is connected to the upper part of the connector (6) by a rope. A handle (8) is provided on the upper part of the traction ring (7). A crab-catching net (9) is provided between the springs (2), the metal wires (3), and the traction rope (5). The crab-catching net (9) is installed crosswise with the metal wires (3) and the traction rope (5), so that when the metal wires (3) and the traction rope (5) are pulled up, the crab-catching net (9) can be pulled up evenly at the same time.

2. The crab-catching net as described in claim 1, characterized in that, The spring (2) is a soft spring.

3. The crab-catching net as described in claim 1, characterized in that, The buckle ring (4) consists of a first buckle ring (401), a second buckle ring (402), a third buckle ring (403), a fourth buckle ring (404), a fifth buckle ring (405), and a sixth buckle ring (406).

4. The crab-catching net as described in claim 1, characterized in that, The traction rope (5) consists of three traction ropes: the first traction rope (501), the second traction rope (502), and the third traction rope (503).

5. The crab-catching net as described in claim 1, characterized in that, The traction rope (5) is made of nylon or polypropylene.

6. The crab-catching net as described in claim 1, characterized in that, The spring (2), the metal wire (3), and the buckle ring (4) are integrally formed.

7. The crab-catching net as described in claim 1, characterized in that, The metal wire (3) is made of 304 stainless steel.

8. The crab-catching net as described in claim 1, characterized in that, The number of springs (2) is six, all of which are hinged to the counterweight. The six springs (2) are hexagonal in shape, which can better catch fish.

9. The crab-catching net as described in claim 1, characterized in that, A connector is fixedly connected to the handle (8), and the connector has two buckles that can be connected to external components.