A non-detachable self-locking structure

By designing a non-removable self-locking structure and RFID tag compartment on the fishing gear, the problem of difficulty in identifying the owner and disassembling the fishing gear is solved, realizing unique identification of the fishing gear and environmental protection.

CN115823461BActive Publication Date: 2026-02-10EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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Patent Information

Application Number
CN202211432613.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-16
Publication Date
2026-02-10
Estimated Expiration
2042-11-16

AI Technical Summary

Technical Problem

Once fishing gear is abandoned, it is difficult to identify the owner, leading to "ghost fishing gear" polluting the marine environment. Existing technology cannot effectively prevent fishing gear from being dismantled.

Method used

A non-removable self-locking structure is designed, which forms a non-removable connection through the relative interlocking of the male and female shells. An RFID tag chamber is provided on the inner wall of the male shell. The self-locking is achieved by the cooperation of deformable locking strips and self-locking columns, ensuring that the fishing gear cannot be easily disassembled.

Benefits of technology

This achieves the non-removability of fishing gear, ensuring that RFID tags can uniquely identify the owner of the fishing gear, reducing the discarding of fishing gear, and protecting the marine environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of non-detachable self-locking structures, including male shell and female shell, the label chamber for encapsulating RFID label is provided in male shell inner wall, two groups of sheet deformable clamping strips are fixed in male shell inner wall, two groups of self-locking posts corresponding to two groups of deformable clamping strips are fixed in male shell inner wall, two corresponding deformable clamping strips are fixed in female shell inner wall, when male shell and female shell are relatively buckled, every group of deformable clamping strip passes through the clamping strip entrance of corresponding guide shell, and under the action of buckling force, two deformable clamping strips of every group are bent into L shape in opposite direction to outside, and respectively pass through both ends of guide passage, so that two corresponding self-locking posts are respectively inserted into the self-locking positioning hole of two deformable clamping strips. Once the self-locking structure is completed, it can only be opened by destroying its structure, which fully meets the identification management requirements.
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Description

Technical Field

[0001] This invention relates to the field of fishing gear technology, specifically to a non-detachable fishing gear tag structure with an RFID tag. Background Technology

[0002] It is estimated that at least 640,000 tons of fishing gear are abandoned, lost, or discarded in the ocean each year. The Food and Agriculture Organization of the United Nations (FAO) and the United Nations Environment Programme (UNEP) estimate that one-tenth of marine debris consists of these "ghost fishing gears." These "ghost fishing gears" pose a significant threat to the marine environment and marine resources. Even after being abandoned, these gears continue to be used for "fishing"—entangling or trapping fish and other marine species. Furthermore, these gears are difficult to decompose in the ocean, further polluting the marine environment. One reason for the existence of ghost fishing gear is that the gear lacks a clear owner and is thus silently abandoned. To reduce the abandonment of fishing gear, it is possible to label the gear to identify its owner and encourage responsible management. To prevent fishermen from dismantling the gear themselves, it is necessary to design a non-removable tagging structure for the fishing gear. Summary of the Invention

[0003] The purpose of this invention is to provide a non-removable self-locking structure so that the male shell and the female shell form a non-removable connection when they are fastened together.

[0004] The objective of this invention is achieved as follows: a non-removable self-locking structure comprising a male shell and a female shell that are snapped together and locked onto the net rope of a fishing gear, wherein the inner wall of the male shell is provided with a tag chamber for encapsulating RFID tags;

[0005] The inner wall of the male shell is fixed with two sets of sheet-like deformable clips, each set having two deformable clips. The two deformable clips in each set are arranged opposite each other and close to each other. The deformable clips extend along the fastening direction, and the portion of the deformable clips near the end is provided with a self-locking hole.

[0006] The inner wall of the male shell is fixed with two sets of self-locking pins that correspond to two sets of deformable locking strips respectively. Each set has two self-locking pins, and the two self-locking pins in each set correspond to the two deformable locking strips respectively.

[0007] The inner wall of the mother shell is fixed with two guide shells that are respectively facing two sets of deformable clips. The guide shells are provided with a through guide channel and a clip inlet that communicates with the guide channel.

[0008] When the male and female shells are fastened together, each set of deformable locking strips passes through the locking strip inlet of the corresponding guide shell. Under the action of the fastening force, the two deformable locking strips of each set bend outward in opposite directions to form an L shape and pass through the two ends of the guide channel respectively, so that the two corresponding self-locking pins are respectively inserted into the self-locking positioning holes of the two deformable locking strips.

[0009] After the male shell and female shell are fastened together, each guide shell abuts against the two corresponding self-locking pins on both sides in the outward direction.

[0010] The beneficial effects of this invention are as follows:

[0011] During the fastening process, the two deformable locking strips separate outwards in opposite directions. As the fastening process continues (i.e., the male shell is continuously pressed against the female shell), the deformable locking strips continue to bend outwards under the resistance. The self-locking pins gradually approach the end of the deformable locking strips until they are inserted into the self-locking positioning holes of the deformable locking strips. The two self-locking pins are respectively inserted into the two deformable locking strips. At the same time, the positioning protrusion of the male shell and the positioning step of the female shell match each other and are fixedly engaged, thus completing the fastening process.

[0012] After the self-locking (fastening) is completed, each guide shell abuts against the two corresponding self-locking pins on both sides in the outward direction. Therefore, when the male shell and female shell are separated by force, the self-locking pins cannot tilt inward and lift up. Thus, once the self-locking is completed, it can only be opened by destroying its structure, which fully meets the requirements of identification management. Attached Figure Description

[0013] Figure 1 This is an installation diagram of the present invention.

[0014] Figure 2 This is a three-dimensional schematic diagram of the male shell after it has been snapped together.

[0015] Figure 3 This is a schematic diagram showing the relative relationship between the deformable locking strip and the self-locking post after fastening.

[0016] Figure 4 This is a schematic diagram of an indoor encapsulation of an RFID tag in a public shell.

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the mother shell.

[0018] Figure 6 This is an overhead view of the mother shell.

[0019] Figure 7 yes Figure 6 AA section view in the image.

[0020] Figure 8 This is a schematic diagram of the connection process between the male and female shells.

[0021] Figure 9 yes Figure 8 Enlarged view of part B in the image.

[0022] Figure 10 This is a schematic diagram showing the male and female shells being joined together. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-10 The present invention will be further illustrated by specific embodiments.

[0024] like Figure 1 , 4 As shown, a non-removable self-locking structure is fixed to the net rope 3 of the fishing gear. It includes a male shell 1 and a female shell 2 that are fastened and locked to the net rope 3 of the fishing gear. The inner wall of the male shell 1 is provided with a tag chamber 4 for encapsulating RFID tags 5. The RFID tags 5 have the corresponding identification information of the fishing gear, which is convenient for identification and management.

[0025] To prevent the self-locking structure from slipping off the net rope 3, and to prevent fishermen from disassembling it themselves, the following improvements were made:

[0026] like Figure 2-4 As shown, two sets of sheet-like deformable clips 101 are fixed on the inner wall of the male shell 1. Each set of deformable clips 101 consists of two clips. The two deformable clips 101 in each set are arranged opposite to each other and close to each other. The deformable clips 101 extend along the fastening direction. A self-locking hole 101a is provided in the part of the deformable clips 101 near the end.

[0027] The inner wall of the male shell 1 is fixed with two sets of self-locking pins 102 that correspond to two sets of deformable locking strips 101 respectively. Each set of self-locking pins 102 has two pins, and the two self-locking pins 102 in each set correspond to the two deformable locking strips 101 respectively.

[0028] like Figure 5-7 As shown, the inner wall of the mother shell 2 is fixed with two guide shells 203 respectively facing the two sets of deformable clips 101. The guide shell 203 is provided with a through guide channel 203b and a clip inlet 203a connected to the guide channel 203b.

[0029] like Figure 8-10 As shown, when the male shell 1 and the female shell 2 are fastened together, each set of deformable locking strips 101 passes through the locking strip inlet 203a of the corresponding guide shell 203. Under the action of the fastening force, the two deformable locking strips 101 in each set are bent outward in opposite directions into an L shape and pass through the two ends of the guide channel 203b respectively, so that the two corresponding self-locking pins 102 are respectively inserted into the self-locking positioning holes 101a of the two deformable locking strips 101.

[0030] To optimize the design scheme, such as Figure 9 As shown, the deformable card strip 101 is rectangular before deformation. The inner side of the end of the deformable card strip 101 is set as a rounded chamfer 101b, and the rounded chamfers 101b of the two deformable card strips 101 in each group are opposite each other.

[0031] like Figure 2 , 5As shown, the male shell 1 has a positioning protrusion 103 extending along its edge on the snap-fit ​​side, and the female shell 2 has a positioning step 201 extending along its edge on the snap-fit ​​side.

[0032] like Figure 8 , 9 As shown, each guide channel 203b has a central protrusion 204 on the surface of the bottom of the card bar inlet 203a. The central protrusion 204 extends into a strip shape along the width direction of the deformable card bar 101. The cross-sectional structure of the central protrusion 204 is semi-circular. When fastened, the rounded chamfers 101b at the ends of the two deformable card bars 101 abut against the two sides of the central protrusion 204, so that the two deformable card bars 101 bend outward in opposite directions to form a right-angled L-shape.

[0033] Therefore, in order to achieve the "non-removable" function, such as Figure 8-10 As shown, during the process of the male shell 1 and the female shell 2 being fastened together, the two deformable locking strips 101 of each group pass through the locking strip inlet 203a of the corresponding guide shell 203. The rounded chamfers 101b at the ends of the two deformable locking strips 101 respectively abut against the two sides of the central protrusion 204. Guided by the rounded chamfers 101b, the ends of the two deformable locking strips 101 slide in opposite directions, so that the two deformable locking strips 101 separate outwards in opposite directions. Then, as the fastening process continues (that is, the male shell 1 is continuously pressed against the female shell 2), the deformable locking strips 101 themselves have a certain... The deformable locking strip 101 is flexible and can be deformed under pressure. Under the action of resistance, the deformable locking strip 101 is continuously bent outward (bent in the length direction) to bend into a right-angled L-shape. During this process, the self-locking pin 102 gradually approaches the end of the deformable locking strip 101 until it is inserted into the self-locking positioning hole 101a of the deformable locking strip 101. The two self-locking pins 102 are respectively inserted into the two deformable locking strips 101. At the same time, the positioning protrusion 103 of the male shell 1 and the positioning step 201 of the female shell 2 match each other and are fixedly engaged, that is, the positioning protrusion 103 is fixedly inserted into the inner groove of the positioning step 201.

[0034] After the self-locking (fastening) is completed, each guide shell 203 abuts against the corresponding two self-locking posts 102 on both sides in the outward direction. Therefore, when the male shell 1 and female shell 2 are separated by force, the self-locking posts 102 cannot tilt inward and lift up. Thus, once the self-locking is completed, it can only be opened by destroying its structure, which fully meets the requirements of identification management.

[0035] like Figure 2 , 5As shown, the male shell 1 has a first rope-passing groove 104 on each of its two opposite sidewalls, which is connected to the inner cavity of the male shell 1 and allows the rope 3 to pass through. The female shell 2 has a second rope-passing groove 202 on each of its two opposite sidewalls, which is connected to the inner cavity of the female shell 2 and allows the rope 3 to pass through. The first rope-passing groove 104 of the male shell 1 and the second rope-passing groove 202 of the female shell 2 are combined to form a rope-passing channel for the rope 3 to pass through. This means that the rope 3 passes through the inner cavity of the male shell 1 and the inner cavity of the female shell 2, and also passes through the first rope-passing groove 104 and the second rope-passing groove 202.

[0036] Two sets of deformable locking strips 101 are located on both sides of the rope threading channel, and two sets of self-locking posts 102 are located on both sides of the rope threading channel, so that the self-locking structure can be locked on both sides of the net rope 3, enhancing the locking effect and making the locking effect more reliable and stable.

[0037] See Figure 10 The guide channel 203b of the aforementioned guide shell 203 is a rectangular cavity. Since the deformable clip 101 is rectangular before deformation, the guide channel 203b matches the deformable clip 101. When the deformable clip 101 deforms, the guide channel 203b guides the sliding direction of the deformable clip 101, thereby controlling the deformation trajectory of the deformable clip 101 to ensure the smooth connection process between the male shell 1 and the female shell 2.

[0038] The aforementioned deformable clip 101 can be made of a non-metallic material with strong toughness or a corrosion-resistant metallic material. After bending and deforming, the deformable clip 101 forms a right-angled L-shape and can maintain the right-angled L-shape. It is also inserted into the guide channel 203b of the guide shell 203 to enhance the fastening effect.

[0039] The above are preferred embodiments of the present invention. Those skilled in the art can make various modifications or improvements based on these embodiments. Without departing from the overall concept of the present invention, such modifications or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. A non-removable self-locking structure, characterized in that, It includes a male shell (1) and a female shell (2) that are fastened and locked to the net rope (3) of the fishing gear, wherein the inner wall of the male shell (1) is provided with a tag chamber (4) for encapsulating an RFID tag (5); The inner wall of the male shell (1) is fixed with two sets of sheet-like deformable clips (101). Each set of deformable clips (101) consists of two clips. The two deformable clips (101) in each set are arranged opposite to each other and close to each other. The deformable clips (101) extend along the fastening direction. The portion of the deformable clips (101) near the end is provided with a self-locking hole (101a). The inner wall of the male shell (1) is fixed with two sets of self-locking pins (102) corresponding to two sets of deformable clips (101). Each set of self-locking pins (102) has two pins, and the two self-locking pins (102) in each set correspond to the two deformable clips (101) in position. The inner wall of the mother shell (2) is fixed with two guide shells (203) that are respectively facing the two sets of deformable clips (101). The guide shell (203) is provided with a through guide channel (203b) and a clip inlet (203a) connected to the guide channel (203b). When the male shell (1) and the female shell (2) are fastened together, each set of deformable clips (101) passes through the clip inlet (203a) of the corresponding guide shell (203), and under the action of the fastening force, the two deformable clips (101) of each set are bent outward in opposite directions into an L shape and pass through the two ends of the guide channel (203b), so that the two corresponding self-locking pins (102) are respectively inserted into the self-locking positioning holes (101a) of the two deformable clips (101).

2. The non-removable self-locking structure according to claim 1, characterized in that: Before deformation, the deformable card strip (101) is rectangular. The inner side of the end of the deformable card strip (101) is rounded (101b). The rounded (101b) of the two deformable card strips (101) in each group are opposite each other.

3. The non-removable self-locking structure according to claim 2, characterized in that: Each guide channel (203b) has a central protrusion (204) on the surface of the bottom of the card bar inlet (203a). The central protrusion (204) extends into a strip shape along the width direction of the deformable card bar (101). When fastened, the rounded chamfers (101b) at the ends of the two deformable card bars (101) abut against the two sides of the central protrusion (204) respectively, so that the two deformable card bars (101) bend outward in opposite directions into a right-angled L-shape.

4. The non-removable self-locking structure according to claim 1, characterized in that: The male shell (1) has a positioning protrusion (103) extending along its edge on the snap-fit ​​side, and the female shell (2) has a positioning step (201) extending along its edge on the snap-fit ​​side. When snapped together, the positioning protrusion (103) of the male shell (1) and the positioning step (201) of the female shell (2) fit together and are fixedly engaged.

5. The non-removable self-locking structure according to claim 4, characterized in that: The male shell (1) has a first rope-passing groove (104) on each of its two opposite sidewalls, which is connected to the inner cavity of the male shell (1) and allows the rope (3) to pass through. The female shell (2) has a second rope-passing groove (202) on each of its two opposite sidewalls, which is connected to the inner cavity of the female shell (2) and allows the rope (3) to pass through. The first rope-passing groove (104) of the male shell (1) and the second rope-passing groove (202) of the female shell (2) are combined to form a rope-passing channel for the rope (3) to pass through.

6. A non-removable self-locking structure according to claim 5, characterized in that: Two sets of deformable locking strips (101) are located on both sides of the rope threading channel, and two sets of self-locking posts (102) are located on both sides of the rope threading channel.

7. A non-removable self-locking structure according to claim 2, characterized in that: The guide channel (203b) of the guide shell (203) is a rectangular cavity. When the deformable card strip (101) is deformed, the guide channel (203b) guides the sliding direction of the deformable card strip (101).

8. The non-removable self-locking structure according to claim 1, characterized in that: After the male shell (1) and the female shell (2) are fastened together, each guide shell (203) abuts against the two corresponding self-locking pins (102) on both sides in the outward direction.

Citation Information

Patent Citations

  • Packaging structure and method for fishing gear tag fixed on net rope

    CN113120400A

  • Novel prevent returning goods device

    CN208796561U