A cross-shaped shaft anti-rotation quick-release device

Abstract

This utility model discloses a cross-axis anti-rotation quick-release device, including an upper fixing member and a lower fixing member. The upper fixing member has anti-rotation quick-release channels on both sides of its bottom. These channels include limiting grooves A, B, and C, all located on the sidewalls of the upper fixing member. A switch sleeve is fitted onto the outer circumference of the lower fixing member, and a fixing rod and a sliding rod are respectively inserted into the lower fixing member. In this dual-axis anti-rotation quick-release device, rotating the upper fixing member causes the fixing rod to slide and fix itself inside the limiting groove C along the channel of limiting groove B in limiting groove A. At this time, the sliding rod is fixed in limiting groove A, forming a dual-axis locking anti-rotation effect. The upper fixing member of the dual-axis locking device can be used to install a net-collecting head, using a rotational locking method instead of a screw connection for a stable connection. The operation is simple and quick.

Description

Technical Field

[0001] This utility model relates to the field of hardware, specifically a cross-shaped anti-rotation quick-release device. Background Technology

[0002] Landing nets, rod holders (commonly known as "cannons" or "ram's horn holders"), harpoons, and anti-loss hook devices used to connect safety lines in sea fishing are all indispensable key accessories in modern fishing activities. The reliability, convenience, and anti-rotation performance of the connection between these accessories and the fishing rod or extension rod are of paramount importance.

[0003] Traditionally, these connections are typically secured using screw threads, where the fitting connector has external threads and the rod tip has internal threads, requiring screwing to tighten and secure the connection. However, in practical use, especially when landing fish, adjusting the rod holder, or dealing with the impact of large fish, this method reveals significant drawbacks: anglers' hands are often contaminated with fish mucus, bait oil, or water, making it extremely easy to slip when tightening the threads. In this situation, the user may instinctively apply more force, but the direction of force easily deviates from the thread axis, causing the threads to experience abnormal "lateral shear force" rather than "axial tightening force," easily resulting in irreversible damage such as thread breakage, wear, or stripping. This not only affects the connection strength and poses a risk of sudden detachment during use, but also makes quick installation or disassembly (such as changing tackle heads with different functions) cumbersome and time-consuming, severely impacting the fishing experience and efficiency.

[0004] Therefore, there is an urgent need for a new type of quick-release connection device that can adapt to humid and oily environments, is quick and easy to operate, has a firm connection, and can effectively prevent rotation and detachment. Utility Model Content

[0005] The purpose of this invention is to provide a cross-shaped shaft anti-rotation quick-release device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a cross-shaped anti-rotation quick-release device is provided, comprising an upper fixing member and a lower fixing member. The upper fixing member has anti-rotation quick-release channels on both sides of its bottom. The anti-rotation quick-release channels include limiting groove A, limiting groove B, and limiting groove C, and limiting groove A, limiting groove B, and limiting groove C are all located on the side wall of the upper fixing member. A switch sleeve is fitted onto the outer circumference of the lower fixing member, and a fixing rod and a sliding rod are respectively inserted into the lower fixing member. The fixing rod and the sliding rod are arranged in a cross shape.

[0007] Furthermore, an anti-slip seat is fixedly provided on the outer circumference of the switch sleeve, and an anti-slip seat is fixedly provided on the upper outer circumference of the upper fixing member.

[0008] Furthermore, the limiting grooves A, B, and C are connected and arranged in a manner that limits the groove B to an angle, while the included angle between the limiting grooves A and C is 90 degrees.

[0009] Furthermore, the switch sleeve has a mating hole, and the lower fixing member has a through hole and a waist hole respectively. A fixing rod is inserted inside the through hole, and a sliding rod is inserted inside the waist hole. A spring is provided at the bottom of the sliding rod, and the sliding rod passes through the mating hole and is movably connected inside the waist hole.

[0010] Furthermore, the bottom of the sliding rod is supported by a spring, and the spring is fixedly connected inside the lower fixing member. Meanwhile, the switch sleeve is fitted on the outside of the lower fixing member and is a vertically floating structure.

[0011] Furthermore, the upper fixing member is inserted into the interior of the lower fixing member and is rotated and locked through the anti-rotation quick-release channel, the fixing rod, and the sliding rod, and the upper fixing member, the switch sleeve, and the lower fixing member are in a concentric circle structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This solution involves pressing the upper fixing component into the lower fixing component, i.e., the limiting groove A is installed on the fixing rod. When the upper fixing component is pressed down, it will cause the sliding rod to compress the spring and slide downward. Then, the upper fixing component is rotated, causing the fixing rod to slide and fix in the limiting groove C along the limiting groove B channel in the limiting groove A. At this time, the sliding rod will be fixed on the limiting groove A, forming a double-axis locking anti-rotation effect. The upper fixing component on the double-axis locking device can be used to install the net head. The net head is locked by rotation, replacing the use of screw connection for docking, achieving a stable connection. It will not fall off during use, and the operation process is simple and quick.

[0014] 2. This solution uses the downward pressure of the switch sleeve to cause the sliding rod to compress the spring and move downward, causing the sliding rod to pop out of the limit groove A. Then, the upper fixing part is rotated in the opposite direction, causing the fixing rod to slide in the opposite direction to the limit groove A within the limit groove C. When the upper fixing part is removed, the spring will reset the sliding rod, achieving a quick-release effect. Attached Figure Description

[0015] Figure 1 This is an exploded view of the structure of this utility model;

[0016] Figure 2 for Figure 1 Cross-sectional view;

[0017] Figure 3 for Figure 1 Top view;

[0018] Figure 4 for Figure 1 A bottom view;

[0019] Figure 5 for Figure 1 Diagram showing the assembly and installation process.

[0020] The following are the labels in the diagram: 100, upper fixing part; 200, lower fixing part; 201, spring; 1, limiting groove A; 2, limiting groove B; 3, limiting groove C; 4, fixing rod; 5, sliding rod; 6, switch sleeve; 7, through hole; 8, waist hole; 81, mating hole. Detailed Implementation

[0021] Detailed Implementation Method 1: Please refer to... Figure 1-5 This utility model provides a cross-shaped anti-rotation quick-release device, including an upper fixing member 100 and a lower fixing member 200. The bottom two sides of the upper fixing member 100 are provided with anti-rotation quick-release channels, which include limiting grooves A1, B2 and C3. The limiting grooves A1, B2 and C3 are all opened on the side wall of the upper fixing member 100. A switch sleeve 6 is sleeved on the outer circumference of the lower fixing member 200, and a fixing rod 4 and a sliding rod 5 are respectively inserted on the lower fixing member 200. The fixing rod 4 and the sliding rod 5 are arranged in a cross shape.

[0022] Specific implementation method 2: An anti-slip seat is fixedly installed on the outer circumference of the switch sleeve 6, and an anti-slip seat is fixedly installed on the upper outer circumference of the upper fixing member 100. This structure can enhance the anti-slip performance during operation and prevent slippage caused by wet, water-soaked or oil-soaked hands; improve grip stability, facilitate users to apply rotation or downward pressure, and enhance the operating experience and safety; the structure is simple, practical, and suitable for outdoor humid environments.

[0023] Specific implementation method three: Limiting grooves A1, B2, and C3 are connected and arranged, with limiting groove B2 inclined. At the same time, the included angle between limiting grooves A1 and C3 is 90 degrees. Through the inclined limiting groove B2, the fixing rod 4 is guided to smoothly transition and achieve natural rotation locking, avoiding jamming. The 90° rotation angle design ensures that after locking, the fixing rod 4 and the sliding rod 5 form an orthogonal double-axis lock, significantly enhancing the anti-rotation capability. The structure is reasonable, easy to manufacture and assemble, and improves reliability.

[0024] Specific Implementation Method 4: The switch sleeve 6 has a docking hole 81, and the lower fixing member 200 has a through hole 7 and a waist hole 8 respectively. A fixing rod 4 is inserted inside the through hole 7, and a sliding rod 5 is inserted inside the waist hole 8. A spring 201 is provided at the bottom of the sliding rod 5. The sliding rod 5 passes through the docking hole 81 and is movably connected inside the waist hole 8. The waist hole 8 is designed to allow the sliding rod 5 to move up and down within a certain range, and automatically resets in conjunction with the spring 201. The docking hole 81 cooperates with the through hole 7 and the waist hole 8 to ensure that the switch sleeve 6 can accurately push the sliding rod 5 to achieve precise control. The spring 201 provides a continuous upward thrust to ensure a stable locking state and prevent accidental loosening.

[0025] Specific implementation method 5: The bottom of the sliding rod 5 is supported by the spring 201, and the spring 201 is fixedly connected to the inside of the lower fixing part 200. At the same time, the switch sleeve 6 is fitted on the outside of the lower fixing part 200 as a vertical floating structure. The spring support structure enables the sliding rod 5 to have an automatic rebound function, realizing one-click quick release.

[0026] The vertically floating design of the switch sleeve 6 allows users to operate it with one hand, making it easy to use. The overall structure is compact, the response is sensitive, and the service life is extended.

[0027] Specific implementation method six: The upper fixing part 100 is inserted into the lower fixing part 200 and rotated and snapped together through the anti-rotation quick-release channel, fixing rod 4, and sliding rod 5. The upper fixing part 100, switch sleeve 6 and lower fixing part 200 are in a concentric circle structure. The concentric circle structure ensures that the components are well aligned and the force is evenly distributed during rotation, avoiding uneven wear or jamming. The rotation snap-fit ​​method replaces the threaded connection, eliminates the risk of stripping threads and improves the reliability of the connection. The overall structure is compact, suitable for various outdoor tool interfaces, and has strong versatility.

[0028] Work process: such as Figure 1-4 As shown: When quickly disassembling the upper fixing part 100 and the lower fixing part 200; press down the switch sleeve 6, which drives the sliding rod 5 to compress the spring 201 and move downward, so that the sliding rod 5 pops out of the limit groove A1. Then rotate the upper fixing part 100 in the opposite direction, so that the fixing rod 4 slides in the opposite direction to the limit groove A1 in the limit groove C3. Take out the upper fixing part 100, and the spring 201 will reset the sliding rod 5, achieving the effect of quick disassembly.

[0029] The limiting grooves A1 and C3 are at 90 degrees, and the fixed rod 4 and sliding rod 5 are also set at right angles. When the fixed rod 4 is on the limiting groove C3, the sliding rod 5 will be on the limiting groove A1, forming a double-axis locking anti-rotation.

[0030] The upper fixing member 100 is inserted into the lower fixing member 200 and is rotated and snapped together through the anti-rotation quick-release channel, the fixing rod 4, and the sliding rod 5. The upper fixing member 100, the switch sleeve 6, and the lower fixing member 200 are in a concentric circle structure.

[0031] The locking and anti-rotation principle of this device is as follows: the upper fixing part 100 is pressed and inserted into the lower fixing part 200, that is, the limiting groove A1 is installed on the fixing rod 4. When the upper fixing part 100 is pressed down, it will drive the sliding rod 5 to compress the spring 201 and slide downward. Then the upper fixing part 100 is rotated, so that the fixing rod 4 slides and is fixed in the limiting groove C3 along the limiting groove B2 channel in the limiting groove A1. At this time, the sliding rod 5 will be fixed on the limiting groove A1 to form a double-axis locking and anti-rotation effect.

[0032] This dual-axis anti-rotation quick-release device has a wide range of applications and is highly practical. It can be used with landing nets: the lower fixing part 200 connects to the landing net rod, and the upper fixing part 100 connects to the landing net head, enabling instant installation and removal, completely solving the problems of thread slippage and stripping. It can also be used with fishing rod holders (ram's horn holders): enabling quick switching and locking of the holder head, facilitating angle adjustment or rod reeling. It can also be used with harpoons or similar hook-setting tools: ensuring the connector remains stable and does not rotate or loosen during the struggle with large fish. Furthermore, it can be used as an anti-lost hook device in sea fishing (for connecting the safety line to the fishing rod), providing a reliable connection when the fishing rod is accidentally dragged into the water, and allowing for one-button quick release when active release is needed. This rotational locking method replaces the traditional screw connection, providing a stable, fast, and reliable solution for various fishing tackle connection scenarios, significantly improving the convenience and safety of fishing. Simultaneously, the upper fixing part 100 on the dual-axis locking device can also connect to the long rod of a fruit picker, broadening its application range.

Claims

1. A cross-shaped shaft anti-rotation quick-release device, comprising an upper fixing member (100) and a lower fixing member (200), characterized in that: The bottom sides of the upper fixing member (100) are provided with anti-rotation quick-release channels. The anti-rotation quick-release channels include limiting groove A (1), limiting groove B (2) and limiting groove C (3). The limiting groove A (1), limiting groove B (2) and limiting groove C (3) are all opened on the side wall of the upper fixing member (100). A switch sleeve (6) is sleeved on the outer circumference of the lower fixing member (200). A fixing rod (4) and a sliding rod (5) are respectively inserted on the lower fixing member (200). The fixing rod (4) and the sliding rod (5) are arranged in a cross shape.

2. The cross-shaped shaft anti-rotation quick-release device according to claim 1, characterized in that: An anti-slip seat is fixedly provided on the outer circumference of the switch sleeve (6), and an anti-slip seat is fixedly provided on the upper circumference of the upper fixing member (100).

3. The cross-shaped shaft anti-rotation quick-release device according to claim 1, characterized in that: The limiting grooves A (1), B (2) and C (3) are connected and the limiting groove B (2) is inclined. The included angle between the limiting grooves A (1) and C (3) is 90 degrees.

4. The cross-shaped shaft anti-rotation quick-release device according to claim 2, characterized in that: The switch sleeve (6) has a docking hole (81), and the lower fixing member (200) has a through hole (7) and a waist hole (8) respectively. A fixing rod (4) is inserted inside the through hole (7), and a sliding rod (5) is inserted inside the waist hole (8). A spring (201) is provided at the bottom of the sliding rod (5). The sliding rod (5) passes through the docking hole (81) and is movably connected inside the waist hole (8).

5. The cross-shaped shaft anti-rotation quick-release device according to claim 4, characterized in that: The bottom of the sliding rod (5) is supported by a spring (201), and the spring (201) is fixedly connected to the inside of the lower fixing member (200). Meanwhile, the switch sleeve (6) is fitted on the outside of the lower fixing member (200) and is a vertical floating structure.

6. The cross-shaped shaft anti-rotation quick-release device according to claim 1, characterized in that: The upper fixing member (100) is inserted into the lower fixing member (200) and rotated and snapped together through the anti-rotation quick-release channel, the fixing rod (4), and the sliding rod (5). The upper fixing member (100), the switch sleeve (6), and the lower fixing member (200) are in a concentric circle structure.

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