Fishing net broken hole rapid detection device

By designing a rapid detection device for holes in fishing nets, and combining a transmission mechanism with computer vision algorithms, rapid and accurate detection of holes in fishing nets has been achieved, solving the problem of low efficiency in manual screening and improving product quality and detection accuracy.

CN223897344UActive Publication Date: 2026-02-10CHAOHU HONGCHEN NET MFG CO LTD
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Patent Information

Application Number
CN202520196375.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-02-10
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

The current method of detecting holes in fishing nets relies on manual screening, which is inefficient and cannot ensure product quality, thus failing to meet quality control requirements.

Method used

Design a rapid detection device for holes in fishing nets. The device uses a detection mechanism and a transmission mechanism in conjunction with a computer vision algorithm to collect and analyze images of the fishing net surface through a camera, screen out fishing nets with holes and defects, and adapt to fishing nets of different thicknesses through an adjustable transmission roller.

Benefits of technology

It enables rapid and accurate detection of holes in fishing nets, improves product quality assurance, adapts to the needs of fishing nets of different thicknesses, and enhances detection efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fishing net broken hole rapid detection device which comprises a supporting frame, first transmission rollers are rotatably connected between the two sides of the top wall of the supporting frame, the first transmission rollers are sequentially arranged along the top wall of the supporting frame, a detection mechanism is arranged at the top end of the supporting frame, and the detection mechanism is parallel to the axis line of the first transmission rollers. The detection mechanism is arranged on one side of the supporting frame, a transmission mechanism is arranged on one side of the transmission mechanism, and a first motor is arranged on one side of the transmission mechanism and is rotationally connected with the transmission mechanism through a first transmission belt. Effective quality guarantee is provided for final factory products of enterprises, the distance between the second transmission roller and the third transmission roller is adjustable, so that the equipment can adapt to fishing nets with different thicknesses, the use requirements in different scenes are met, and the applicability of the products is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of fishing gear processing technology, specifically relating to a rapid detection device for holes in fishing nets. Background Technology

[0002] Quality control is crucial in the processing of fishing nets. Raw materials must be rigorously inspected to ensure they meet quality standards. Each processing step must be monitored to check whether the product's dimensions, strength, mesh size, and other indicators are up to standard. Finished fishing nets must be sampled and inspected to ensure that their performance meets usage requirements.

[0003] Visual inspection technology acquires image information of target objects through image acquisition devices such as cameras and industrial cameras, converts it into digital signals, and then uses computer vision algorithms to process and analyze the images to extract feature information of the target objects, such as shape, size, color, and texture. Finally, it classifies, identifies, measures, and detects defects in the target objects according to preset standards or rules.

[0004] In current production processes, the screening of holes in fishing nets usually relies on manual visual inspection and screening, which is inefficient and cannot guarantee the final inspection results, resulting in the inability to effectively guarantee product quality. Therefore, visual inspection technology can be applied to the inspection of fishing nets to solve the weakness of the existing inspection procedures that rely on manual screening. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a rapid detection device for holes in fishing nets.

[0006] The technical solution adopted to solve the above technical problems is: to provide a rapid detection device for holes in fishing nets, including a support frame, a first transmission roller rotatably connected between the two sides of the top wall of the support frame, the first transmission rollers being arranged sequentially along the top wall of the support frame, a detection mechanism being provided at the top of the support frame, the detection mechanism being parallel to the axis of the first transmission rollers, a transmission mechanism being provided on one side of the support frame, a first motor being provided on one side of the transmission mechanism, and the first motor being rotatably connected to the transmission mechanism via a first transmission belt.

[0007] The above technical solution, by setting up an inspection mechanism to inspect the surface of the fishing net, filters out fishing nets with holes and defects, providing effective quality assurance for the final products of enterprises. The adjustable spacing between the second and third drive rollers allows the equipment to adapt to fishing nets of different thicknesses, meeting the needs of different scenarios and improving the applicability of the product.

[0008] Furthermore, the transmission mechanism includes a first support plate, which is symmetrically arranged. A limit rod is fixedly connected to the top wall of the first support plate. A second support plate is slidably sleeved on the top of the limit rod. A second transmission roller is rotatably connected between the second support plates. A third transmission roller is arranged parallel to the bottom end of the second transmission roller. Both ends of the third transmission roller are rotatably connected to the side wall of the first support plate.

[0009] Through the above technical solution, the second support plate can slide up and down along the limiting rod, thereby adjusting the distance between the second and third transmission rollers. This makes it convenient for operators to pass the fishing net between the second and third transmission rollers. The net is transported by the opposite rotation of the second and third transmission rollers. Furthermore, the adjustable distance between the second and third transmission rollers allows the equipment to adapt to fishing nets of different thicknesses, improving the applicability of the product.

[0010] Furthermore, a first connecting ring and a second connecting ring are fixedly connected to the same side wall of the first support plate and the second support plate, respectively. The first connecting ring and the second connecting ring are connected by a threaded transmission rod. The threaded transmission rod is rotatably connected to the first connecting ring and threadedly connected to the second connecting ring.

[0011] Through the above technical solution, by means of the rotational connection between the threaded transmission rod and the first connecting ring, and the threaded connection between the threaded transmission rod and the second connecting ring, when the threaded transmission rod rotates, it can drive the second support plate to slide up and down along the limiting rod.

[0012] Furthermore, a drive rod is arranged parallel to the bottom end of the third transmission roller. The two ends of the drive rod are rotatably connected to the side wall of the first support plate, respectively. One end of the drive rod passes through the first support plate and is fixedly connected to a second transmission wheel. The output end of the first motor is fixedly connected to a first transmission wheel. Both the first and second transmission wheels are rotatably connected to the first transmission belt. A drive gear is fixedly connected to the outer wall of one end of the drive rod, and a driven gear is fixedly connected to the outer wall of one end of the third transmission roller. The drive gear meshes with the driven gear.

[0013] With the above technical solution, when the first motor starts, the first transmission wheel drives the second transmission wheel to rotate through the first transmission belt. The rotation of the second transmission wheel drives the drive rod to rotate. Through the meshing relationship between the drive gear and the driven gear, the third transmission roller is rotated.

[0014] Furthermore, the end of the drive rod away from the second transmission wheel passes through the side wall of the first support plate and is fixedly connected to a first drive wheel. A second drive wheel is provided at the top of the first drive wheel. A connecting shaft is rotatably connected to the axis of the second drive wheel. The second drive wheel and the first drive wheel are rotatably connected through a first synchronous belt. The connecting shaft and the drive rod are rotatably connected through a first connecting plate. One end of the second transmission roller passes through the side wall of the second support plate and is fixedly connected to a third drive wheel. The third drive wheel and the second drive wheel are rotatably connected through a second synchronous belt. The second transmission roller and the connecting shaft are rotatably connected through a second connecting plate.

[0015] Through the above technical solution, the rotation of the drive rod drives the first drive wheel to rotate, the first drive wheel drives the second drive wheel to rotate through the first synchronous belt, and the second drive wheel drives the third drive wheel to rotate through the second synchronous belt, thereby realizing the rotation of the second transmission roller. When the second support plate drives the second transmission roller to change the distance between it and the third transmission roller, the first connecting plate and the second connecting plate limit the rotation, and the first connecting plate and the second connecting plate and the connecting shaft rotate the first drive wheel and the second drive wheel, as well as the second drive wheel and the third drive wheel, to always maintain a rotational connection, thereby ensuring the normal rotation of the second transmission roller.

[0016] Furthermore, the detection mechanism includes a top plate, a second motor is fixedly connected to the top wall of the top plate, the output end of the second motor passes through the top plate and is fixedly connected to a third transmission wheel, a fourth transmission wheel is correspondingly provided at one end of the third transmission wheel, the third transmission wheel and the fourth transmission wheel are rotatably connected by a second transmission belt, a moving rod is fixedly connected to the outer wall of the second transmission belt, a limit plate is provided on one side of the moving rod, a through groove is opened on the side wall of the limit plate, one end of the moving rod is inserted into the through groove, and the two sides of the limit plate are slidably connected to the top plate.

[0017] Furthermore, sliding grooves are respectively provided on the side walls of the top plate, and limiting wheels are rotatably connected to both sides of the limiting plate, with the limiting wheels corresponding to the sliding grooves.

[0018] With the above technical solution, the second motor starts, the third transmission wheel rotates and drives the second transmission belt to rotate, thereby realizing the reciprocating motion of the moving rod. The reciprocating motion of the moving rod drives the limiting plate to make linear reciprocating motion along the sliding groove.

[0019] Furthermore, the detection mechanism includes a camera, the top of which is fixedly connected to a limiting plate.

[0020] The above technical solution involves capturing images of the fishing net surface using a camera, then processing and analyzing the images using computer vision algorithms to identify damaged or broken nets. A limiting plate drives the camera's reciprocating motion, increasing the camera's coverage area and expanding the detection area, thereby ensuring the final detection accuracy.

[0021] The beneficial effects of this utility model are as follows:

[0022] This invention utilizes a detection mechanism to inspect the surface of fishing nets, filtering out those with holes or defects, thus providing effective quality assurance for the final products shipped by enterprises. A moving rod drives a limiting plate and a camera to reciprocate along a sliding groove, enabling the camera to sample information from the net surface. The camera's reciprocating motion expands the sampling area, improving detection accuracy. A transmission mechanism, through the opposing rotation of the second and third transmission rollers, ensures the orderly transfer of the fishing net. The limiting positions of the first and second connecting plates, and the rotational connection between the first and second connecting plates and the connecting shaft, ensure that the first, second, and third drive wheels maintain a constant rotational connection, guaranteeing the normal rotation of the second transmission roller. The adjustable distance between the second and third transmission rollers allows the device to adapt to fishing nets of different thicknesses, meeting the needs of various scenarios and improving product applicability. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a three-dimensional schematic diagram of the transmission mechanism of this utility model;

[0025] Figure 3 This is a first-view diagram of the testing mechanism of this utility model;

[0026] Figure 4 This is a second-view diagram of the testing mechanism of this utility model.

[0027] Reference numerals: 1. Support frame; 2. First transmission roller; 3. Detection mechanism; 301. Top plate; 302. Sliding groove; 303. Second motor; 304. Third transmission wheel; 305. Second transmission belt; 306. Fourth transmission wheel; 307. Limiting plate; 308. Through groove; 309. Limiting wheel; 310. Moving rod; 312. Camera; 4. Transmission mechanism; 401. First support plate; 402. Limiting rod; 403. Second support plate; 404. Second connecting ring; 405. Thread 406. Transmission rod; 407. First connecting ring; 408. Third drive wheel; 409. Third transmission roller; 410. Drive rod; 411. Second transmission wheel; 412. Driven gear; 413. First synchronous belt; 414. First drive wheel; 415. Connecting shaft; 416. Second drive wheel; 417. Second connecting plate; 418. Second transmission roller; 419. First connecting plate; 420. Drive gear; 5. First transmission belt; 6. First motor; 601. First transmission wheel. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] like Figure 1 - Figure 4 As shown, a rapid detection device for holes in fishing nets includes a support frame 1. A first transmission roller 2 is rotatably connected between the two sides of the top wall of the support frame 1. The first transmission roller 2 is arranged sequentially along the top wall of the support frame 1. A detection mechanism 3 is provided at the top of the support frame 1. The detection mechanism 3 is parallel to the axis of the first transmission roller 2. A transmission mechanism 4 is provided on one side of the support frame 1. A first motor 6 is provided on one side of the transmission mechanism 4. The first motor 6 and the transmission mechanism 4 are rotatably connected through a first transmission belt 5.

[0030] The transmission mechanism 4 includes a first support plate 401, which is symmetrically arranged. A limit rod 402 is fixedly connected to the top wall of the first support plate 401. A second support plate 403 is slidably sleeved on the top of the limit rod 402. A second transmission roller 418 is rotatably connected between the second support plates 403. A third transmission roller 408 is arranged parallel to the bottom of the second transmission roller 418. Both ends of the third transmission roller 408 are rotatably connected to the side wall of the first support plate 401.

[0031] The second support plate 403 can slide up and down along the limiting rod 402, thereby adjusting the distance between the second transmission roller 418 and the third transmission roller 408. This makes it easier for operators to pass the fishing net through the gap between the second transmission roller 418 and the third transmission roller 408. The fishing net is transported by the opposite rotation of the second transmission roller 418 and the third transmission roller 408. The adjustable distance between the second transmission roller 418 and the third transmission roller 408 also makes it easier for the equipment to adapt to fishing nets of different thicknesses, thus improving the applicability of the product.

[0032] A first connecting ring 406 and a second connecting ring 404 are fixedly connected to the sidewalls of the first support plate 401 and the second support plate 403 respectively. The first connecting ring 406 and the second connecting ring 404 are connected by a threaded transmission rod 405. The threaded transmission rod 405 is rotatably connected to the first connecting ring 406 and threadedly connected to the second connecting ring 404.

[0033] Through the rotational connection between the threaded transmission rod 405 and the first connecting ring 406, and the threaded connection between the threaded transmission rod 405 and the second connecting ring 404, when the threaded transmission rod 405 rotates, it can drive the second support plate 403 to slide up and down along the limiting rod 402.

[0034] A drive rod 409 is arranged parallel to the bottom end of the third transmission roller 408. Both ends of the drive rod 409 are rotatably connected to the side wall of the first support plate 401. One end of the drive rod 409 passes through the first support plate 401 and is fixedly connected to the second transmission wheel 410. The output end of the first motor 6 is fixedly connected to the first transmission wheel 601. Both the first transmission wheel 601 and the second transmission wheel 410 are rotatably connected to the first transmission belt 5. A drive gear 420 is fixedly connected to the outer wall of one end of the drive rod 409. A driven gear 411 is fixedly connected to the outer wall of one end of the third transmission roller 408. The drive gear 420 meshes with the driven gear 411.

[0035] When the first motor 6 starts, the first transmission wheel 601 drives the second transmission wheel 410 to rotate through the first transmission belt 5. The rotation of the second transmission wheel 410 drives the drive rod 409 to rotate. Through the meshing relationship between the drive gear 420 and the driven gear 411, the third transmission roller 408 is rotated.

[0036] One end of the drive rod 409, away from the second transmission wheel 410, passes through the side wall of the first support plate 401 and is fixedly connected to the first drive wheel 414. The top of the first drive wheel 414 is provided with a second drive wheel 416. A connecting shaft 415 is rotatably connected to the axis of the second drive wheel 416. The second drive wheel 416 and the first drive wheel 414 are rotatably connected through the first synchronous belt 412. The connecting shaft 415 and the drive rod 409 are rotatably connected through the first connecting plate 419. One end of the second transmission roller 418 passes through the side wall of the second support plate 403 and is fixedly connected to the third drive wheel 407. The third drive wheel 407 and the second drive wheel 416 are rotatably connected through the second synchronous belt 413. The second transmission roller 418 and the connecting shaft 415 are rotatably connected through the second connecting plate 417.

[0037] The rotation of the drive rod 409 drives the first drive wheel 414 to rotate. The first drive wheel 414 drives the second drive wheel 416 to rotate via the first synchronous belt 412. The second drive wheel 416 drives the third drive wheel 407 to rotate via the second synchronous belt 413, thereby realizing the rotation of the second transmission roller 418. When the second support plate 403 drives the second transmission roller 418 to change the distance between it and the third transmission roller 408, the first connecting plate 419 and the second connecting plate 417 limit the rotation, and the first connecting plate 419 and the second connecting plate 417 and the connecting shaft 415 rotate the first drive wheel 414 and the second drive wheel 416, as well as the second drive wheel 416 and the third drive wheel 407, to always maintain a rotational connection, thereby ensuring the normal rotation of the second transmission roller 418.

[0038] The detection mechanism 3 includes a top plate 301. A second motor 303 is fixedly connected to the top wall of the top plate 301. The output end of the second motor 303 passes through the top plate 301 and is fixedly connected to a third transmission wheel 304. A fourth transmission wheel 306 is correspondingly provided at one end of the third transmission wheel 304. The third transmission wheel 304 and the fourth transmission wheel 306 are rotatably connected through a second transmission belt 305. A moving rod 310 is fixedly connected to the outer wall of the second transmission belt 305. A limit plate 307 is provided on one side of the moving rod 310. A through groove 308 is opened on the side wall of the limit plate 307. One end of the moving rod 310 is inserted into the through groove 308. The two sides of the limit plate 307 are slidably connected to the top plate 301.

[0039] The top plate 301 has sliding grooves 302 on both sides of its sidewalls. The limiting plate 307 is rotatably connected to the limiting wheels 309 on both sides, and the limiting wheels 309 correspond to the sliding grooves 302.

[0040] The second motor 303 starts, and the third transmission wheel 304 rotates, driving the second transmission belt 305 to rotate, thereby realizing the reciprocating motion of the moving rod 310. The reciprocating motion of the moving rod 310 drives the limiting plate 307 to make linear reciprocating motion along the sliding groove 302.

[0041] The detection mechanism 3 includes a camera 312, the top of which is fixedly connected to a limiting plate 307. The camera 312 captures images of the surface of the fishing net to obtain image information, and then uses computer vision algorithms to process and analyze the images to screen out the fishing nets with holes and defects. The limiting plate 307 drives the camera 312 to reciprocate, thereby increasing the shooting coverage of the camera 312, expanding the detection area, and ensuring the final detection accuracy.

[0042] In use, the first motor 6 is started first. The first transmission wheel 601 drives the second transmission wheel 410 to rotate via the first transmission belt 5. The rotation of the second transmission wheel 410 drives the drive rod 409 to rotate. Through the meshing relationship between the drive gear 420 and the driven gear 411, the third transmission roller 408 rotates. The rotation of the drive rod 409 drives the first drive wheel 414 to rotate. The first drive wheel 414 drives the second drive wheel 416 to rotate via the first synchronous belt 412. The second drive wheel 416 drives the third drive wheel 407 to rotate via the second synchronous belt 413, thereby realizing the rotation of the second transmission roller 408. The second transmission roller 418 and the third transmission roller 408 rotate in opposite directions to realize the transmission and transportation of the fishing net. At this time, the second motor 303 is started, and the third transmission wheel 304 rotates to drive the second transmission belt 305 to rotate, thereby realizing the reciprocating motion of the moving rod 310. The reciprocating motion of the moving rod 310 drives the limiting plate 307 to make linear reciprocating motion along the sliding groove 302, thereby realizing the linear reciprocating motion of the camera 312. The camera 312 takes pictures of the surface of the fishing net to obtain image information, and then uses computer vision algorithms to process and analyze the images to screen out the fishing nets with holes and defects.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A rapid detection device for holes in fishing nets, comprising a support frame (1), characterized in that: The support frame (1) is rotatably connected between the two sides of the top wall of the support frame (1). The first transmission roller (2) is arranged sequentially along the top wall of the support frame (1). The top of the support frame (1) is provided with a detection mechanism (3). The detection mechanism (3) is parallel to the axis of the first transmission roller (2). The support frame (1) is provided with a transmission mechanism (4) on one side. The transmission mechanism (4) is provided with a first motor (6) on one side. The first motor (6) and the transmission mechanism (4) are rotatably connected through a first transmission belt (5).

2. The rapid detection device for holes in fishing nets according to claim 1, characterized in that, The transmission mechanism (4) includes a first support plate (401), which is symmetrically arranged. A limit rod (402) is fixedly connected to the top wall of the first support plate (401). A second support plate (403) is slidably sleeved on the top of the limit rod (402). A second transmission roller (418) is rotatably connected between the second support plates (403). A third transmission roller (408) is arranged parallel to the bottom end of the second transmission roller (418). Both ends of the third transmission roller (408) are rotatably connected to the side wall of the first support plate (401).

3. The rapid detection device for holes in fishing nets according to claim 2, characterized in that, The first support plate (401) and the second support plate (403) are respectively fixedly connected to the sidewalls of the same side by a first connecting ring (406) and a second connecting ring (404). The first connecting ring (406) and the second connecting ring (404) are connected by a threaded transmission rod (405). The threaded transmission rod (405) is rotatably connected to the first connecting ring (406) and threadedly connected to the second connecting ring (404).

4. The rapid detection device for holes in fishing nets according to claim 2, characterized in that, A drive rod (409) is arranged parallel to the bottom end of the third transmission roller (408). The two ends of the drive rod (409) are rotatably connected to the side wall of the first support plate (401). One end of the drive rod (409) passes through the first support plate (401) and is fixedly connected to the second transmission wheel (410). The output end of the first motor (6) is fixedly connected to the first transmission wheel (601). The first transmission wheel (601) and the second transmission wheel (410) are both rotatably connected to the first transmission belt (5). A drive gear (420) is fixedly connected to the outer wall of one end of the drive rod (409). A driven gear (411) is fixedly connected to the outer wall of one end of the third transmission roller (408). The drive gear (420) meshes with the driven gear (411).

5. The rapid detection device for holes in fishing nets according to claim 4, characterized in that, The end of the drive rod (409) away from the second transmission wheel (410) passes through the side wall of the first support plate (401) and is fixedly connected to the first drive wheel (414). The top of the first drive wheel (414) is provided with a second drive wheel (416). The axis of the second drive wheel (416) is rotatably connected to a connecting shaft (415). The second drive wheel (416) and the first drive wheel (414) are rotatably connected through the first synchronous belt (412). The connecting shaft (415) and the drive rod (409) are rotatably connected through the first connecting plate (419). One end of the second transmission roller (418) passes through the side wall of the second support plate (403) and is fixedly connected to the third drive wheel (407). The third drive wheel (407) and the second drive wheel (416) are rotatably connected through the second synchronous belt (413). The second transmission roller (418) and the connecting shaft (415) are rotatably connected through the second connecting plate (417).

6. The rapid detection device for holes in fishing nets according to claim 1, characterized in that, The detection mechanism (3) includes a top plate (301). A second motor (303) is fixedly connected to the top wall of the top plate (301). The output end of the second motor (303) passes through the top plate (301) and is fixedly connected to a third transmission wheel (304). A fourth transmission wheel (306) is correspondingly provided at one end of the third transmission wheel (304). The third transmission wheel (304) and the fourth transmission wheel (306) are rotatably connected by a second transmission belt (305). A moving rod (310) is fixedly connected to the outer wall of the second transmission belt (305). A limiting plate (307) is provided on one side of the moving rod (310). A through groove (308) is opened on the side wall of the limiting plate (307). One end of the moving rod (310) is inserted into the through groove (308). The two sides of the limiting plate (307) are slidably connected to the top plate (301).

7. The rapid detection device for holes in fishing nets according to claim 6, characterized in that, The top plate (301) has sliding grooves (302) on both sides of its sidewalls. The limiting plate (307) has rotatably connected limiting wheels (309) on both sides of its sidewalls. The limiting wheels (309) correspond to the sliding grooves (302).

8. A rapid detection device for holes in fishing nets according to claim 6, characterized in that, The detection mechanism (3) includes a camera (312), the top of which is fixedly connected to a limiting plate (307).