A quick release joint for a wire mesh
The design, which incorporates locking pins and fastening screws, main and auxiliary springs, and a limiting structure, solves the problem of loosening of the net connector, enabling stable and convenient quick assembly and disassembly. It is suitable for various net connections, improving stability and versatility in use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI SHUNSHI FISHING TACKLE SALES CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-06-05
AI Technical Summary
The quick-release connectors of existing landfill nets are prone to loosening after long-term use, affecting the stability of use and lacking versatility.
A pair of locking posts engage with the fastening screws connecting the net, combined with main and auxiliary springs and a limiting structure to ensure a stable connection and facilitate quick assembly and disassembly. The inclined groove and locking groove prevent rotation, and the use of universal screws improves versatility.
It achieves stable and convenient connection, prevents loosening, extends the service life and ease of operation of the data collection net, and is suitable for various data collection net connection needs.
Smart Images

Figure CN224320091U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of disassembly and assembly connector technology, and more specifically, relates to a quick disassembly and assembly connector for a web-flying net. Background Technology
[0002] As a core auxiliary tool for fishing operations, landing nets typically consist of three parts: a net pole, a net ring, and a net bag. To facilitate carrying and storage, modern landing nets widely adopt a split design, allowing for quick assembly and disassembly of the net pole and net ring via adapters.
[0003] Existing quick-release connectors typically achieve fixation through the snap-fit or threaded connection of two components. Snap-fit connectors need to withstand unidirectional loads and are prone to damage after prolonged use; while threaded connections cannot prevent relative rotation of the threads, leading to loosening and affecting stability. For example, a net-catching pole and net head connection device disclosed in Chinese invention patent literature (CN202322512163.5) uses a slot at one end of the first connection end with a locking hole, which engages with a locking post inside the plug at one end of the second connection end through a plug-in engagement, preventing relative rotation between the first and second connection ends and ensuring the stability of the net head during use. However, the locking post in this application is prone to wear, and due to the gap between the locking post and the locking hole, loosening may still occur after prolonged use, affecting the stability of the net during use.
[0004] Therefore, we need a quick-connect coupling for the landing net that provides a stable connection, allows for rapid assembly and disassembly, and is highly versatile. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a quick-release connector for a landing net. The connector has a simple structure and achieves an anti-rotation effect by setting a pair of locking posts to engage with the fastening screws connecting the landing net, thereby enhancing the stability of the connection. It is easy to assemble and disassemble and has better versatility.
[0006] This utility model discloses a quick-release connector for a landing net, comprising a base, a sleeve, a cap, a main spring, and a connecting mechanism; the cap is slidably connected to the sleeve, the base is threaded to one side of the sleeve, and the other side of the sleeve is detachably connected to the connecting mechanism, which is used to connect the landing net body.
[0007] The sleeve has a pair of oppositely arranged inclined grooves on the side near the connecting mechanism. The inclined grooves are equipped with locking pins, which are slidably connected to the inclined grooves and are engaged with the connecting mechanism through the side edges of the locking pins. The side of the locking pins near the base is abutted by a support pad, which is used to support the locking pins as a whole, ensuring that the two locking pins slide stably in the inclined grooves and preventing loosening due to vibration or load.
[0008] One end of the main spring abuts against the support pad, and the other end abuts against the end of the base near the sleeve, thereby applying the elastic force of the main spring evenly to the locking pin; the main spring is fitted around the outer circumference of the sleeve to provide elastic force so that the side edge of the locking pin of the sleeve is locked to the connecting mechanism by snapping.
[0009] As a further improvement of this utility model, the sleeve includes a threaded cavity and a connecting cavity. The threaded cavity is provided with a thread that is threaded to the base. The connecting cavity is used to accommodate the connecting mechanism. Inclined grooves are located on both sides of the connecting cavity. The locking pins and the connecting mechanism are engaged in the connecting cavity. A pair of arc-shaped extensions are fixedly provided on the end face of the threaded cavity away from the base. A pair of locking grooves are formed between the two arc-shaped extensions to engage with the connecting mechanism and prevent rotation.
[0010] As a further improvement of this utility model, a support pad is provided inside the sleeve. One end of the support pad is attached to and slidably connected to the inner wall of the threaded cavity, and the other end is attached to and slidably connected to the inner wall of the connecting cavity. The connecting mechanism pushes the support pad to slide in the connecting cavity. A secondary spring is provided on the side of the support pad near the base. One end of the secondary spring abuts against the support pad, and the other end extends and abuts against the inside of the base. After the connecting mechanism pushes the support pad to slide, it compresses the secondary spring to accumulate elasticity, which is used to pop out the connecting mechanism after the locking pin is disengaged from the connecting mechanism.
[0011] As a further improvement of this utility model, the outer wall of the base near the sleeve is provided with threads, which are threaded to fit the outer wall of the threaded cavity for threaded connection with the outer wall of the threaded cavity; a limiting groove is opened on the inner wall of the base away from the sleeve for accommodating the secondary spring; a limiting step is fixedly installed on the side of the limiting groove away from the sleeve for supporting the side of the secondary spring.
[0012] As a further improvement of this utility model, the connecting mechanism includes a fastening screw, a connecting tube, and a limiting washer; the connecting tube is a spindle-shaped column with a through hole in the length direction for detachable connection with the main body of the net; a radial through hole is opened in the middle of the connecting tube for the fastening screw to pass through; a washer groove is opened in the middle of the fastening screw for rotatable connection with the inner side of the limiting washer, so as to prevent the fastening screw from falling off directly inside the connecting tube.
[0013] As a further improvement of this utility model, a pair of bosses are provided on one side of the connecting pipe near the sleeve. The bosses are located on both sides of the through hole in the radial direction of the middle of the connecting pipe. The outer periphery of the limiting gasket is rotatably connected to the inner side of the bosses. The bosses are engaged with the end face of the sleeve to prevent the connecting pipe and the sleeve from rotating relative to each other.
[0014] As a further improvement of this utility model, a limiting platform is provided on the inner side of the sleeve near the connecting mechanism. The limiting platform is fixedly installed on the inner wall of the sleeve in the circumferential direction and is slidably connected to the outer wall of the sleeve. The limiting platform is located on the side of the locking pin away from the supporting pad, and is used to push a pair of locking pins to slide evenly along the inclined groove, thereby improving the stability of the device.
[0015] As a further improvement of this utility model, a slot is provided on the outer side of the sleeve near the connecting mechanism, and a buckle can be detachably installed in the slot. The buckle is located on the side of the limiting platform away from the locking post, which is used to prevent the sleeve cap from separating from the sleeve, thus ensuring the integrity of the device structure.
[0016] As a further improvement of this utility model, the fastening screw is a universal screw, and the thread of the fastening screw matches the side edge of the locking post, which can be used for various net-flying connection needs.
[0017] As a further improvement of this utility model, the outer circumferential surface of the sleeve is provided with anti-slip texture to enhance grip stability.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a pair of locking posts that slide with the inclined groove, and using the side edges of the locking posts to engage with the connecting mechanism, the connecting mechanism can bear a uniform load, thus achieving a stable installation of the connecting mechanism; by setting a pair of bosses on the connecting tube and engaging with a pair of locking grooves between the arc-shaped extension at the end of the sleeve, the relative rotation between the connecting tube and the sleeve is avoided, improving the stability of the connection; by setting a sliding support pad supported by a secondary spring inside the sleeve, after the fastening screw abuts and pushes the support pad to compress the spring, elasticity is accumulated, and the connecting mechanism is ejected as a whole after the locking posts are released from the connecting mechanism, achieving quick disassembly and improving the ease of operation; by setting a limiting platform on the inner side of the sleeve cap, located between the locking posts and the buckle, the purpose of preventing the sleeve cap from separating from the sleeve is achieved, ensuring the integrity of the structure; by matching the threads of the locking posts with the universal screw, the universality of disassembly and assembly is improved. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model;
[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the base of this utility model;
[0023] Figure 5 This is a schematic diagram of the connection mechanism of this utility model;
[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the sleeve cap of this utility model;
[0025] Figure 7 This is a schematic diagram of the connection structure between the connector and the main body of the net in this utility model.
[0026] Explanation of the labels in the diagram:
[0027] 1. Base, 11. Limiting groove, 12. Limiting step, 2. Sleeve, 21. Inclined groove, 22. Locking post, 23. Supporting pad, 24. Threaded cavity, 25. Connecting cavity, 26. Arc-shaped extension, 27. Locking groove, 28. Locking slot, 29. Buckle, 3. Sleeve cap, 31. Limiting platform, 4. Main spring, 5. Connecting mechanism, 51. Fastening screw, 511. Washer groove, 52. Connecting pipe, 521. Boss, 53. Limiting pad, 6. Supporting pad block, 7. Secondary spring, 8. Net body. Detailed Implementation
[0028] Specific Implementation Example 1: Please refer to... Figures 1-7 A quick-release connector for a landing net includes a base 1, a sleeve 2, a cap 3, a main spring 4, and a connecting mechanism 5; the cap 3 is slidably connected to the sleeve 2, the base 1 is threadedly connected to one side of the sleeve 2, and the other side of the sleeve 2 is detachably connected to the connecting mechanism 5, which is used to connect the landing net body 8.
[0029] The sleeve 2 has a pair of oppositely arranged inclined grooves 21 on the side near the connecting mechanism 5. The inclined grooves 21 are equipped with locking posts 22, which are slidably connected to the inclined grooves 21. The locking posts 22 can be square in cross-section and are engaged with the connecting mechanism 5 through their side edges. The side of the locking posts 22 near the base 1 is abutted against by a support pad 23, which supports the locking posts 22 as a whole, ensuring that the two locking posts 22 slide stably in the inclined grooves 21, preventing loosening due to vibration or load, and improving connection stability.
[0030] like Figure 2 One end of the main spring 4 abuts against the support pad 23, and the other end abuts against the end of the base 1 near the sleeve 2, thereby applying the elastic force of the main spring 4 evenly to the locking post 22 and improving the locking effect of the locking post 22; the main spring 4 is fitted around the outer periphery of the sleeve 2 to provide elastic force so that the side edge of the locking post 22 of the sleeve 2 is locked to the connecting mechanism 5 by locking.
[0031] Specifically, such as Figure 3 The sleeve 2 shown includes a threaded cavity 24 and a connecting cavity 25. The threaded cavity 24 has threads on the outside that are threaded to the base 1. The connecting cavity 25 is used to accommodate the connecting mechanism 5. Inclined grooves 21 are located on both sides of the connecting cavity 25. The locking pins 22 engage with the connecting mechanism 5 in the connecting cavity 25. A pair of arc-shaped extensions 26 are fixedly provided on the end face of the threaded cavity 24 away from the base 1. A pair of locking grooves 27 are formed between the two arc-shaped extensions 26 for engaging with the connecting mechanism 5, thereby preventing the connecting mechanism 5 from rotating relative to the connecting cavity 25.
[0032] Specifically, a support pad 6 is provided inside the sleeve 2. One end of the support pad 6 is attached to and slidably connected to the inner wall of the threaded cavity 24, and the other end is attached to and slidably connected to the inner wall of the connecting cavity 25. The connecting mechanism 5 pushes the support pad 6 to slide in the connecting cavity 25. A secondary spring 7 is provided on the side of the support pad 6 near the base 1. One end of the secondary spring 7 abuts against the support pad 6, and the other end extends and abuts against the inside of the base 1. After the connecting mechanism 5 pushes the support pad 6 to slide, it compresses the secondary spring 7 to accumulate elasticity, which is used to pop out the connecting mechanism 5 after the locking post 22 is disengaged from the connecting mechanism 5, realizing quick disassembly and improving the convenience of operation.
[0033] Specifically, such as Figure 4 The outer wall of the base 1 near the sleeve 2 is threaded and fits into the threaded outer wall of the threaded cavity 24 for threaded connection with the outer wall of the threaded cavity 24; a limiting groove 11 is opened on the inner wall of the base 1 away from the sleeve 2 for accommodating the secondary spring 7; a limiting step 12 is fixedly installed on the side of the limiting groove 11 away from the sleeve 2 for supporting one side of the secondary spring 7.
[0034] Specifically, such as Figure 5 The connecting mechanism 5 shown includes a fastening screw 51, a connecting tube 52, and a limiting washer 53; the connecting tube 52 is a spindle-shaped column with a through hole along its length for detachable connection to the main body 8 of the net. Figure 7 As shown; the connecting tube 52 has a radial through hole in the middle for the fastening screw 51 to pass through; the fastening screw 51 has a washer groove 511 in the middle for rotating connection with the inner side of the limiting washer 53 to prevent the fastening screw 51 from falling off directly inside the connecting tube 52.
[0035] Specifically, a pair of bosses 521 are provided on one side of the connecting pipe 52 near the sleeve 2. The bosses 521 are located on both sides of the through hole in the radial direction of the middle of the connecting pipe 52. The outer periphery of the limiting gasket 53 is rotatably connected to the inner side of the bosses 521. The bosses 521 engage with the locking groove 27 at the end face of the sleeve 2 to prevent the connecting pipe 52 and the sleeve 2 from rotating relative to each other.
[0036] Specifically, such as Figure 6 A limiting platform 31 is provided on the inner side of the sleeve cap 3 near the connecting mechanism 5. The limiting platform 31 is fixedly installed on the inner wall of the sleeve cap 3 in the circumferential direction and is slidably connected to the outer wall of the sleeve 2. The limiting platform 31 is located on the side of the locking post 22 away from the support pad 23. It can push a pair of locking posts 22 to slide evenly along the inclined groove 21 towards the side where the support pad 23 is located, so as to release the locking post 22 from the fastening screw 51 and improve the stability of the device.
[0037] Specifically, a slot 28 is provided on the outer side of the sleeve 2 near the connecting mechanism 5. A buckle 29 is detachably installed in the slot 28. The buckle 29 is located on the side of the limiting platform 31 away from the locking post 22. The limiting platform 31 is located between the locking post 22 and the buckle 29, thereby achieving the purpose of preventing the sleeve cap 3 from separating from the sleeve 2 and ensuring the integrity of the device structure.
[0038] Specifically, the fastening screw 51 is an 8mm universal screw. The thread of the fastening screw 51 matches the side edge of the locking post 22, which can meet the connection needs of various nets on the market, thus improving the versatility of the device.
[0039] Specifically, the outer circumferential surface of the sleeve cap 3 is provided with anti-slip texture to enhance grip stability.
[0040] During use, the locking post 22 is installed in the inclined groove 21 of the sleeve 2 and the support pad 23 is installed. At the same time, the main spring 4, the auxiliary spring 7, and the support pad 6 are installed. The sleeve 2 is tightened to the base 1, and the threads fit tightly. The sleeve cap 3 is fitted onto the outer circumference of the sleeve 2. The limiting platform 31 is set between the locking post 22 and the buckle 29. The sleeve cap 3 is pushed towards the side of the base 1, so that the limiting platform inside the sleeve cap 3 presses the locking post 22 to slide along the inclined groove 21. At this time, the fastening screw 51 of the connecting mechanism 5 connected to the net body 8 is inserted into the sleeve 2 and slides towards the side of the base 1 against the support pad 6, compressing the auxiliary spring 7. After the sleeve cap 3 is loosened, the thread of the fastening screw 51 engages with the side edge of the locking post 22 to ensure a stable connection. At this time, the protrusion on the connecting pipe 52 The platform 521 engages with the locking groove 27 at the end of the sleeve 2, preventing relative rotation between the connecting pipe 52 and the sleeve 2. Rotating the fastening screw 51 makes the connection mechanism 5 and the sleeve 2 more tightly connected, improving connection stability. When it is necessary to remove the connecting mechanism 5, push the sleeve cap 3 towards the side where the base 1 is located. The limiting platform 31 presses the locking post 22 to slide along the inclined groove 21. At this time, the engagement between the fastening screw 51 and the locking post 22 is released. Under the action of the secondary spring 7, the support pad 6 applies elastic force to the fastening screw 51 of the connecting mechanism 5, causing the connecting mechanism 5 to pop directly out of the sleeve 2, realizing the quick disassembly of the connecting mechanism 5. Applying a uniform load to the connecting mechanism 5 through the locking post 22 not only extends the service life of the device but also improves the ease of operation.
[0041] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A quick-release connector for a landing net, characterized in that, It includes a base (1), a sleeve (2), a cap (3), a main spring (4), and a connecting mechanism (5); the cap (3) is slidably connected to the sleeve (2), the base (1) is threadedly connected to one side of the sleeve (2), and the other side of the sleeve (2) is detachably connected to the connecting mechanism (5); The sleeve (2) has a pair of oppositely arranged inclined grooves (21) on the side near the connecting mechanism (5). The inclined grooves (21) are provided with locking pins (22), which are slidably connected to the inclined grooves (21) and are engaged with the connecting mechanism (5) through the side edge of the locking pins (22). The side of the locking pins (22) near the base (1) is abutted by a support pad (23). One end of the main spring (4) abuts against the support pad (23), and the other end abuts against the end of the base (1) near the sleeve (2). The main spring (4) is fitted around the outer periphery of the sleeve (2) to provide elastic force to keep the sleeve (2) locked to the connecting mechanism (5).
2. The quick-release connector for a landfill net according to claim 1, characterized in that, The sleeve (2) includes a threaded cavity (24) and a connecting cavity (25). The threaded cavity (24) is provided with a thread that is threaded to the base (1). The connecting cavity (25) is used to accommodate the connecting mechanism (5). The inclined groove (21) is located on both sides of the connecting cavity (25). The locking post (22) engages with the connecting mechanism (5) in the connecting cavity (25). A pair of arc-shaped extensions (26) are fixedly provided on the end face of the threaded cavity (24) away from the base (1). A pair of locking grooves (27) are formed between the two arc-shaped extensions (26) to engage with the connecting mechanism (5) to prevent rotation.
3. The quick-release connector for a landfill net according to claim 2, characterized in that, The sleeve (2) is provided with a support pad (6) inside. One end of the support pad (6) is attached to and slidably connected to the inner wall of the threaded cavity (24), and the other end is attached to and slidably connected to the inner wall of the connecting cavity (25). The connecting mechanism (5) pushes the support pad (6) to slide in the connecting cavity (25). A secondary spring (7) is provided on the side of the support pad (6) near the base. One end of the secondary spring (7) abuts against the support pad (6), and the other end extends and abuts against the inside of the base (1). It is used to compress the secondary spring (7) to accumulate elasticity after the connecting mechanism (5) pushes the support pad (6) to slide.
4. The quick-release connector for a landing net according to claim 3, characterized in that, The base (1) has a thread on the outer wall near the sleeve (2), which fits into the thread on the outer wall of the threaded cavity (24) for threaded connection with the outer wall of the threaded cavity (24); a limiting groove (11) is opened on the inner wall of the base (1) away from the sleeve (2) for accommodating the secondary spring (7); a limiting step (12) is fixedly installed on the side of the limiting groove (7) away from the sleeve (2) for supporting one side of the secondary spring (7).
5. The quick-release connector for a landfill net according to claim 1, characterized in that, The connecting mechanism (5) includes a fastening screw (51), a connecting tube (52), and a limiting washer (53); the connecting tube (52) is a spindle-shaped column with a through hole in the length direction for detachable connection with the net body (8); the connecting tube (52) has a through hole in the middle radially for passing through the fastening screw (51); the fastening screw (51) has a washer groove (511) in the middle, which is rotatably connected to the inner side of the limiting washer (53).
6. The quick-release connector for a landing net according to claim 5, characterized in that, The connecting pipe (52) has a pair of bosses (521) on one side near the sleeve (2). The bosses (521) are located on both sides of the through hole in the radial direction of the middle part of the connecting pipe (52). The outer periphery of the limiting gasket (53) is rotatably connected to the inner side of the bosses (521). The bosses (521) are engaged with the end face of the sleeve (2) to prevent the connecting pipe (52) and the sleeve (2) from rotating relative to each other.
7. The quick-release connector for a landfill net according to claim 1, characterized in that: The inner side of the sleeve cap (3) near the connecting mechanism (5) is provided with a limiting platform (31). The limiting platform (31) is fixedly installed on the inner wall of the sleeve cap (3) and is slidably connected to the outer wall of the sleeve (2). The limiting platform (31) is located on the side of the locking post (22) away from the supporting pad (23) and is used to push the locking post (22) to slide along the inclined groove (21).
8. The quick-release connector for a landfill net according to claim 7, characterized in that: A slot (28) is provided on the outside of the sleeve (2) near the connecting mechanism (5). A buckle (29) is detachably installed in the slot (28). The buckle (29) is located on the side of the limiting platform (31) away from the locking post (22) and is used to restrict the sleeve cap (3) from separating from the sleeve (2).
9. A quick-release connector for a landfill net according to claim 5, characterized in that: The fastening screw (51) is a general-purpose screw, and the thread of the fastening screw (51) matches the side edge of the retaining post (22).
10. A quick-release connector for a landfill net according to claim 7, characterized in that: The outer circumferential surface of the cap (3) is provided with anti-slip texture to enhance grip stability.