GT knotting box

Abstract

The utility model relates to the technical field of fishing line function boxes, and discloses a GT knotting box which comprises a box body, a line wheel set and a locking mechanism, an operation window is arranged on one side of the box body, and the locking mechanism is arranged on the box body in the axial direction. The line wheel group is rotatably assembled on the locking mechanism, and a control part of the locking mechanism is exposed at the operation window of the box body; locking of the line wheel set is controlled through the control part so that GT knotting can be facilitated, and after GT knotting is completed, the line wheel set is released so that the line wheel set can rotate so that the fishing line can be continuously released. The locking control function and the wire wheel dynamic release function are integrated, so that the contradiction problem between the axial locking stability and the circumferential rotation flexibility of the wire wheel is solved, it is guaranteed that the knot strength of a GT knot reaches the theoretical tension value of a PE wire and a front wire, and meanwhile the knotting operation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of fishing line functional boxes, and in particular, to a quick GT knotting box. Background Technology

[0002] The GT knot, also known as the FG knot, is a fishing line knot technique specifically designed to connect high-tensile PE (polyethylene braided) lines to the leader (carbon or nylon lines). It is widely used in lure fishing (especially in sea fishing or when targeting large fish). Its core objective is to preserve the original tensile strength of the fishing line to the greatest extent possible through a high-strength knot with low knot volume, avoiding a significant decrease in line strength due to knotting.

[0003] The GT knot box is a functional fishing line box, especially suitable for efficient and reliable connection of PE line and leader in lure fishing. Due to its high tensile strength and thin diameter, PE line often requires a fluorocarbon / nylon leader. The GT knot, as a connection method with no dead knots and minimal tensile loss, demands extremely high stability in the knotting process. Traditional manual knotting suffers from problems such as unstable reel positioning and uneven force application, easily leading to loose knots or line damage. Specifically:

[0004] Existing knot-tying tools mostly employ a fixed reel structure, lacking a dynamic locking mechanism. This makes it impossible to achieve precise reel locking during the line winding and tensioning phase, leading to tension imbalance when the PE line and leader overlap. Especially under high-strength conditions where the PE line tensile strength reaches 20 pounds (such as YGK and Sofitel brands), the 4-14 gauge compatibility range of the leader requires the reel to have graded locking capabilities, which traditional devices struggle to meet the tension control needs of multiple line diameter combinations. Furthermore, in the reel release phase after knotting, existing tools generally exhibit a backlash, affecting the smooth release and retrieval of fishing line. Utility Model Content

[0005] This utility model provides a GT knotting box that integrates locking control and dynamic release function of the spool to solve the contradiction between axial locking stability and circumferential rotation flexibility of the spool. This ensures that the knot strength of the GT knot reaches the theoretical tensile strength value of the PE line and the lead conductor, while improving the knotting operation efficiency. This solves the technical problem that existing knotting tools are inconvenient to use and cannot meet the requirements of GT knotting.

[0006] This utility model provides a GT knotting box, including a box body, a line reel assembly, and a locking mechanism. An operation window is provided on one side of the box body, and the locking mechanism is arranged axially on the box body. The line reel assembly is rotatably mounted on the locking mechanism, and the control part of the locking mechanism is exposed at the operation window of the box body. The control part controls the locking of the line reel assembly to facilitate GT knotting, and after the GT knotting is completed, the line reel assembly is released to allow the line reel assembly to rotate and continue to release fishing line.

[0007] Furthermore, the locking mechanism also includes a shaft, a connecting part, a spring, a limiting cylinder, and a movable block. The control part is a knob. The limiting cylinder is fixed axially in the inner cavity of the box, and the free end of the limiting cylinder is arranged facing the operation window. The first end of the shaft passes through the central hole of the limiting cylinder axially and is fixed to the box through the connecting part. The knob is connected to the second end of the shaft and exposed at the operation window of the box. The free end of the limiting cylinder has a limiting structure for rotating and limiting the knob. The spool is rotatably sleeved on the limiting cylinder. The movable block is circumferentially limited and sleeved on the free end of the limiting cylinder. The movable block and the spool are arranged axially and vertically opposite each other. The spring is located between the knob and the movable block.

[0008] Furthermore, there are two sets of spring clips arranged in a rotationally symmetrical manner, and the movable block has a receiving groove that matches the spring clips and limits their movement.

[0009] Furthermore, the inner wall of the knob is provided with a protrusion, and the movable block is provided with a groove that matches the protrusion; by rotating the knob, the protrusion is made to compress the spring piece and deform it and slide it into the groove, thereby making the movable block axially press the spool assembly, or by rotating the knob, the protrusion is made to disengage from the groove and the movable block is reset under the action of the spring piece, thereby releasing the spool assembly.

[0010] Furthermore, the side wall of the box is provided with a line outlet, a line clamp, and a blade in sequence; the fishing line output through the line outlet is straightened by the line clamp to facilitate GT knotting, and the fishing line after GT knotting is cut by the blade.

[0011] Furthermore, the box body includes a bottom shell and a cover, with the cover hinged to the bottom shell, and a buckle is provided between the bottom shell and the cover; the buckle and the hinge connection are arranged opposite to each other.

[0012] Furthermore, the cable outlet, cable clamp, and blade are all located on the bottom shell; or the cable outlet, cable clamp, and blade are all located on the cover; or the cable outlet and cable clamp are located on the bottom shell or the cover, with the cable outlet located between the bottom shell and the cover.

[0013] Furthermore, the distance between the wire outlet hole and the wire clamp and / or the distance between the wire clamp and the blade is 10mm to 40mm.

[0014] Furthermore, the box body has a handle extending radially outward, the handle having an anti-slip structure; and / or the box body has hanging holes.

[0015] Furthermore, the reel assembly has an observation hole for observing the fishing line and reducing weight; or the reel assembly has a drag-reducing hole for reducing motion resistance; or the reel assembly and / or the housing has an identification structure for identifying the relative position between the reel assembly and the housing.

[0016] This utility model has the following beneficial effects:

[0017] This utility model, the GT knotting box, features a locking mechanism arranged axially along the box body. A rotatable thread reel assembly is mounted on the locking mechanism. Axial pressure is applied to the thread reel assembly via a control unit, utilizing a mechanical locking principle to keep the PE thread and the lead wire on the same axis throughout the winding process, preventing thread misalignment or loosening. During knotting, the thread reel assembly is locked, ensuring the thread remains stationary during winding. After knotting, the locking is released, allowing the thread reel assembly to rotate freely, and the thread is automatically released with tension, avoiding errors caused by manual tension adjustment. The mechanical locking ensures consistent tension for each winding, preventing tension fluctuations due to fatigue or distraction during manual operation. Axial pressure ensures a tight fit between the thread and the lead wire (carbon / nylon thread) due to material differences, preventing slippage or misalignment. The locking process is simplified and the operation complexity is reduced. The operation window provides a visual operating space, allowing users to directly observe the winding process. The control part (such as a knob or lever) is exposed in the operation window, and the locking-releasing action can be completed with one hand. The control part is linked to other parts of the locking mechanism through, for example, threaded teeth, snaps, or elastic linkage. When the control part is rotated or pressed, the locking mechanism simultaneously applies or releases pressure on the thread reel group, achieving "one-click" locking and unlocking. There is no need to manually tighten the thread step by step. The mechanical locking automatically completes the knot compaction, avoiding thread damage caused by insufficient lubrication or uneven force. The operation window allows for visual and precise control of the winding path and number of turns (such as a fixed 5 turns), ensuring the repeatability and reliability of each knot and reducing human error. The GT knotting box integrates the reel assembly, locking mechanism, and control window into a closed or semi-closed box, preventing external environmental factors (such as wind and moisture) from interfering with the knotting process. It supports different diameters of PE line and leader line, and can adapt to various line combinations (such as 0.8 PE line + 5 fluorocarbon line) by changing the reel assembly or adjusting the locking pressure. The entire process from winding to locking is mechanized, reducing the time from 5-10 minutes by hand to 1-2 minutes or even less. It can handle complex environments (boat travel, nighttime operation) and is compatible with various fishing methods such as rock fishing and lure fishing. Through structural innovation and functional integration, the GT knotting box effectively solves the three core problems of traditional manual GT knotting: difficulty in controlling winding tension, complex locking steps, and strong tool dependence. The GT knotting box transforms complex knotting techniques into a standardized process, significantly improving fishing efficiency and success rate, and is especially suitable for large target fish species that require high knot strength.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a schematic diagram of the GT knotting box according to a preferred embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the GT knotting box with the cover removed according to a preferred embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the GT knotting box with the cover and knob removed according to a preferred embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the locking mechanism of a preferred embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the knob connection and fixing part in a preferred embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the movable block in a preferred embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the inner cavity of the knob in a preferred embodiment of the present invention.

[0027] Legend:

[0028] 100. Box body; 101. Operation window; 102. Cable outlet; 103. Cable clamp; 104. Blade; 105. Bottom shell; 1051. Support block; 106. Cover; 107. Buckle; 108. Handhold; 1081. Anti-slip structure; 109. Hanging hole; 200. Thread reel assembly; 201. Observation hole; 202. Drag reduction hole; 203. Marking structure; 300. Locking mechanism; 301. Shaft; 302. Connecting part; 303. Control part; 3031. Knob; 3032. Protrusion; 304. Spring; 305. Limiting cylinder; 3051. Limiting structure; 306. Movable block; 3061. Receiving groove; 3062. Groove; 307. Support spring. Detailed Implementation

[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0030] Figure 1 This is a schematic diagram of the GT knotting box according to a preferred embodiment of the present invention; Figure 2This is a schematic diagram of the GT knotting box with the cover removed according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the GT knotting box with the cover and knob removed according to a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the locking mechanism of a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the knob connection and fixing part in a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the movable block in a preferred embodiment of the present invention; Figure 7 This is a schematic diagram of the inner cavity of the knob in a preferred embodiment of the present invention.

[0031] like Figure 1 and Figure 2As shown, the GT knotting box of this embodiment includes a box body 100, a reel assembly 200, and a locking mechanism 300. An operation window 101 is provided on one side of the box body 100, and the locking mechanism 300 is arranged axially on the box body 100. The reel assembly 200 is rotatably mounted on the locking mechanism 300, and the control part 303 of the locking mechanism 300 is exposed at the operation window 101 of the box body 100. The control part 303 controls the locking of the reel assembly 200 to facilitate GT knotting, and releases the reel assembly 200 after the GT knotting is completed so that the reel assembly 200 can rotate and continue to release fishing line. This utility model GT knotting box features a locking mechanism 300 arranged axially along the box body 100. A thread reel assembly 200 is rotatably mounted on the locking mechanism 300. An axial pressure is applied to the thread reel assembly 200 via a control unit 303. This mechanical locking principle keeps the PE thread and the lead wire on the same axis throughout the winding process, preventing thread misalignment or loosening. During knotting, the thread reel assembly 200 is locked, ensuring the thread remains stationary. After knotting, the locking is released, allowing the thread reel assembly 200 to rotate freely, and the thread is automatically released with tension, avoiding errors caused by manual tension adjustment. The mechanical locking ensures consistent tension for each winding, preventing tension fluctuations due to fatigue or distraction during manual operation. The axial pressure ensures a tight fit between the thread and the lead wire (carbon / nylon thread) to prevent slippage or misalignment due to material differences. The locking process is simplified and the operation complexity is reduced. The operation window 101 provides a visual operating space, allowing users to directly observe the winding process. The control unit 303 (such as a knob 3031 or lever) is exposed in the operation window 101, and the locking-releasing action can be completed with one hand. The control unit 303 is linked to other parts of the locking mechanism 300 through, for example, threaded teeth, snaps, or elastic linkage. When the control unit 303 is rotated or pressed, the locking mechanism 300 simultaneously applies or releases pressure on the thread reel group 200, realizing "one-click" locking and unlocking. There is no need to manually tighten the thread step by step. The knot is automatically compacted by mechanical locking, avoiding damage to the thread caused by insufficient lubrication or uneven force. The operation window 101 can visually and accurately control the winding path and number of turns (such as fixed at 5 turns), ensuring the repeatability and reliability of each knot and reducing human error. The reel assembly 200, locking mechanism 300, and operation window 101 are integrated into a closed or semi-closed housing 100 to avoid interference from external environmental factors (such as wind and moisture) on the knotting process; it supports the adaptation of PE lines and leader lines of different diameters, and can adapt to various line combinations (such as 0.8 PE line + 5 carbon line) by changing the reel assembly 200 or adjusting the locking pressure; the entire process from winding to locking is mechanized, reducing the time from 5-10 minutes by hand to 1-2 minutes or even less; it can cope with complex environments (boat turbulence, night operation) and is compatible with various fishing methods such as rock fishing and lure fishing.The GT knotting box design effectively solves three core problems of traditional manual GT knotting: difficulty in controlling the winding tension, complexity of the locking steps, and strong reliance on tools. The GT knotting box transforms complex knotting techniques into a standardized process, significantly improving fishing efficiency and success rate, and is especially suitable for large target fish species that have strict requirements for knot strength.

[0032] The GT knotting box of this embodiment includes a box body 100, a reel assembly 200, and a locking mechanism 300. An operation window 101 is provided on one side of the box body 100. The locking mechanism 300 is axially arranged on the box body 100. The locking mechanism 300 includes a shaft 301, a connecting part 302, and a control part 303. The reel assembly 200 is rotatably mounted on the shaft 301. The first end of the shaft 301 passes through the box body 100 axially and is connected and fixed to the box body 100 through the connecting part 302. The control part 303 is connected to the second end of the shaft 301 and is exposed at the operation window 101 of the box body 100. The control part 303 controls the locking of the reel assembly 200 to facilitate GT knotting, and releases the reel assembly 200 after GT knotting is completed so that the reel assembly 200 can rotate and continue to release fishing line. Optionally, the locking mechanism 300 includes a limiting cylinder 305 and a knob 3031, with the knob 3031 threadedly connected to the limiting cylinder 305. Rotating the knob 3031 causes it to press against the spool assembly 200, thereby locking the spool assembly 200; or rotating the knob 3031 disengages it from the spool assembly 200, thereby unlocking the spool assembly 200. The specific structural design of the GT knotting box, through a modular locking mechanism and axial mechanical control, and the synergistic effect of core components such as the shaft 301, knob 3031, and limiting cylinder 305, transforms the complex operation of traditional GT knotting into a standardized process. The shaft 301 passes through the box 100 and is fixed by the connecting part 302, forming a stable axial support frame to ensure that the reel 200 always rotates or locks along the same axis, avoiding uneven tension caused by line deviation during winding; the PE line and the lead wire remain parallel during winding to reduce friction damage caused by cross-misalignment; the shaft 301 is rigidly fixed to resist the lateral torque when the fishing line is pulled, preventing the reel 200 from shaking and affecting the tightness of the knot. The knob 3031 is connected to the limiting cylinder 305 by a thread. When the knob 3031 is rotated, its internal thread moves axially along the external thread of the limiting cylinder 305, pushing the end face of the knob 3031 against the side of the wire reel 200, and locking the wire reel 200 by friction. Reverse rotation releases the pressure and unlocks the wire reel 200. The threaded drive provides linear pressure adjustment, and the user can finely control the locking force by rotating the angle to avoid crushing of the wire due to instantaneous pressure (such as flattening of PE wire). The inclined friction characteristics of the thread keep the locking state naturally, and it will not be accidentally unlocked even if there is external vibration (such as the hull pitching). The line reel 200 is rotatably mounted on the shaft 301 and can rotate freely in the default state (to release the fishing line). When the knob 3031 is locked, the line reel 200 is fixed, and the PE line and the leader line are cross-wound. After completion, the reel 200 is unlocked and resumes its rotation function to release the fishing line. During the winding stage, fixing the line reel 200 ensures stable tension, and during the release stage, free rotation prevents the line from springing back and loosening. From locking to releasing, the line does not need to be disassembled, improving the continuity of operation (especially when operating with one hand).The operation window 101 integrates visualization and operation. Located on the side of the housing 100, the operation window 101 exposes the knob 3031 for easy operation and provides an observation window. Users can directly visually check the number of turns (e.g., 20 turns of PE line around the leader) and the knot shape. Beginners can observe the standard winding path through the window to avoid omissions or overlaps. The enclosed housing 100 reduces interference from wind and water splashes, while the partially open operation window 101 ensures controllability of key steps. This GT knotting box, through its axial locking, threaded pressure, and modular assembly design, transforms the core difficulties of GT knotting (tension control, locking reliability, and operational efficiency) into a mechanized process, ultimately achieving standardized output of high-strength knots. It is also compatible with complex environments and multi-diameter requirements, making it suitable for lure anglers to handle large targets.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in this embodiment, the locking mechanism 300 further includes a shaft 301, a connecting part 302, a spring piece 304, a limiting cylinder 305, and a movable block 306. The control part 303 adopts a knob 3031. The limiting cylinder 305 is axially fixed in the inner cavity of the box 100, and the free end of the limiting cylinder 305 is arranged facing the operation window 101. The first end of the shaft 301 passes through the central hole of the limiting cylinder 305 axially and is connected and fixed to the box 100 through the connecting part 302. The knob 3031 connects to... The limit cylinder 305 is exposed at the second end of the shaft 301 and at the operation window 101 of the housing 100. The free end of the limit cylinder 305 has a limiting structure 3051 for rotating and limiting the knob 3031. The reel assembly 200 is rotatably sleeved on the limit cylinder 305. The movable block 306 is circumferentially limited and sleeved on the free end of the limit cylinder 305. The movable block 306 and the reel assembly 200 are axially arranged vertically opposite each other. The spring piece 304 is located between the knob 3031 and the movable block 306. The structure, including the spring plate 304, the limiting cylinder 305, and the movable block 306, further improves the locking stability and operational tolerance of the GT knotting box through the coordinated design of axial pressure buffering, circumferential limiting guidance, and elastic preload compensation. The spring plate 304 is located between the knob 3031 and the movable block 306. When the knob 3031 applies locking pressure to the spool assembly 200 through threaded rotation, the spring plate 304 acts as an elastic medium, converting the rigid pressure of the knob 3031 into a uniformly distributed axial preload force. This avoids local crushing caused by the knob 3031 directly contacting the spool assembly 200 (such as PE wire deforming due to instantaneous high pressure). During the locking process, the spring plate 304 automatically adjusts the pressure according to the slight deformation of the spool assembly 200 surface, ensuring that different wire diameters (such as 0.8 PE wire + 3 carbon wire) can fit tightly. The movable block 306 is circumferentially limited and sleeved on the free end of the limiting cylinder 305, and can only move axially and cannot rotate. The movable block 306 and the spool assembly 200 are arranged axially and vertically opposite each other, forming a pressure transmission chain of "knob 3031 → spring 304 → movable block 306 → spool assembly 200". The circumferential limitation of the movable block 306 restricts the rotational freedom of the spool assembly 200, ensuring that the spool assembly 200 only bears axial pressure when locked, and avoids misalignment of the number of winding turns due to rotational friction. The axially opposite arrangement of the movable block 306 and the spool assembly 200 makes the locking pressure act perpendicularly on the end face of the spool assembly 200, preventing stress concentration on one side caused by tilted locking. The limiting structure 3051 (such as a groove or protrusion) at the free end of the limiting cylinder 305 cooperates with the corresponding structure of the knob 3031 to limit the maximum rotation angle of the knob 3031 (e.g., half a turn or 270°) and prevent over-tightening; the mechanical limiting avoids the user from crushing the wire or plastically deforming the spring 304 due to excessive rotation of the knob 3031; the limited rotation range makes the locking force controllable and the operation results are consistent for different users (e.g., the optimal locking pressure is reached when rotated to the limit point).The movable block 306 and the reel assembly 200 are arranged "up-down" relative to each other in the axial direction. When the knob 3031 is locked, the movable block 306 moves downward under axial pressure, pushing the reel assembly 200 to fully engage with the contact surface of the spring 304. This accommodates axial dimensional fluctuations in the reel assembly 200 caused by changes in line winding. After long-term use, when the surface of the reel assembly 200 wears, the movable block 306 can automatically fill the gaps, maintaining the stability of the locking force. Through the composite design of the spring 304 buffer, the movable block 306 limiting guide, and the overload protection of the limiting structure 3051, the locking mechanism 300 of the GT knot box achieves precise pressure control, dynamic adaptation to multiple line diameters, and protection against misoperation. It transforms the highly difficult GT knotting into a standardized operation of "rotating to the limit to complete the knot," significantly reducing the technical threshold and improving knot reliability, making it especially suitable for high-intensity fishing scenarios (such as deep-sea environments). Optionally, a support spring 307, a spool assembly 200, and a movable block 306 are sequentially fitted onto the limiting cylinder 305; the support spring 307 provides elastic support for the spool assembly 200. When the spool assembly 200 needs to be locked, the movable block 306 applies axial force and presses the spool assembly 200 against the support block 1051 to ensure the locking of the spool assembly 200; when the spool assembly 200 needs to be released, due to the disengagement of the movable block 306, the support spring 307 elastically supports the spool assembly 200 and causes the spool assembly 200 to disengage from the support block 1051, thereby enabling the smooth rotation of the spool assembly 200.

[0034] like Figure 3 , Figure 6 and Figure 7As shown, in this embodiment, two sets of spring plates 304 are provided, arranged in a rotationally symmetrical manner. The movable block 306 has a receiving groove 3061 that matches the spring plates 304 and limits their movement. The two sets of spring plates 304, arranged in a rotationally symmetrical manner, combined with the receiving groove 3061 of the movable block 306, further optimize the pressure balance, anti-eccentric load capacity, and long-term stability of the locking mechanism 300. The two sets of spring plates 304 are symmetrically distributed at 180°, forming a dual-point elastic support. The axial pressure applied by the knob 3031 is evenly transmitted to the movable block 306 through the spring plates 304, preventing the spool assembly 200 from tilting due to unilateral pressure. The two spring plates symmetrically counteract the eccentric torque when the knob 3031 rotates, ensuring uniform pressure on the end face of the spool assembly 200 and preventing the PE wire and lead wire from weakening due to unilateral crushing. When one spring plate fails (e.g., fatigue fracture), the other spring plate 304 can still maintain the basic locking force. To prevent sudden locking failure leading to loosening of the line knot, the receiving groove 3061 of the movable block 306 matches the shape of the spring 304, limiting the lateral displacement of the spring 304 during compression and allowing only axial elastic deformation. The spring 304 is directionally compressed within the groove, avoiding stress concentration caused by lateral bending and extending its service life. The groove wall constrains the position of the spring 304, ensuring that the contact surfaces of the spring 304 and the movable block 306 remain aligned even under repeated disassembly or vibration conditions, maintaining pressure transmission efficiency. The two springs compress synchronously during locking, absorbing axial fluctuations of the reel assembly 200 through elastic deformation, while simultaneously sharing the load to reduce stress on a single spring. The overall stiffness of the spring assembly can adapt to different line diameter combinations (such as 0.8 PE line + 4 fluorocarbon line or 2 PE line + 8 fluorocarbon line), eliminating the need for manual adjustment of the knob 3031's travel. The two springs distribute the cyclic load evenly, extending the design life by more than 50% compared to a single spring, making it especially suitable for professional anglers who use the equipment frequently. Through the coordinated design of the double spring sheet rotational symmetry layout and the deformation guidance of the receiving groove 3061, the locking mechanism 300 of the GT knot box achieves ultra-high pressure balance and reliability in extreme environments. It integrates the load distribution concept of precision mechanics into the fishing tackle design, so that even non-professional users can stably output high-strength GT knots through the foolproof operation of "rotating to the limit", completely solving the problem of dependence on experience and feel in traditional knotting technology.

[0035] like Figure 3 , Figure 6 and Figure 7As shown, in this embodiment, the inner wall surface of the knob 3031 is provided with a protrusion 3032, and the movable block 306 is provided with a groove 3062 that matches the protrusion 3032. By rotating the knob 3031, the protrusion 3032 is used to compress the spring sheet 304 to deform and slide into the groove 3062, thereby causing the movable block 306 to axially press the spool assembly 200. Alternatively, by rotating the knob 3031, the protrusion 3032 is dislodged from the groove 3062, and the movable block 306 is reset under the action of the spring sheet 304, thereby releasing the spool assembly 200. When the knob 3031 is rotated, the protrusion 3032 presses the spring 304 to deform and slide into the groove 3062, forming a mechanical interlock through the "protrusion entering the groove". At this time, the spring force of the spring 304 keeps the protrusion 3032 locked in the groove 3062. When the protrusion 3032 slides into the groove 3062, it produces a clear "click" sound and a change in resistance, providing tactile and auditory feedback to indicate to the user that the locking is complete, avoiding loosening of the knot due to insufficient locking (not entering the groove) or excessive rotation (exceeding the groove 3062). The depth of the groove 3062 limits the displacement of the protrusion 3032, mechanically preventing the knob 3031 from rotating further, preventing damage to the mechanism due to the user's brute force (such as the spring 304 being deformed by excessive pressure). When locked, the protrusion 3032 compresses the spring 304 to deform, the spring 304 stores energy and pushes the movable block 306 to axially press the spool assembly 200; when released, the knob 3031 is rotated in the opposite direction, the protrusion 3032 disengages from the groove 3062, the spring 304 releases its stored energy and resets, driving the movable block 306 to retract, relieving the pressure on the spool assembly 200. The deformation of the spring 304 automatically adjusts with the thickness of the reel assembly 200, ensuring that different line diameter combinations (such as 0.4 PE line + 2 carbon line or 1.5 PE line + 6 carbon line) can obtain suitable locking force. The restoring force of the spring 304 causes the movable block 306 to instantly disengage from the reel assembly 200, which is especially suitable for emergency line release needs (such as needing to quickly release line after hooking a fish). After the protrusion 3032 slides into the groove 3062, the rebound force of the spring 304 and the side wall of the groove 3062 form a double constraint, which must be overcome to rotate in the opposite direction to unlock. Even if the boat is bumpy or the fishing line vibrates violently, the protrusion-groove interlocking structure can still maintain the locked state, avoiding accidental unlocking that could cause the knot to fail. Unlocking requires deliberately rotating the knob 3031 in the opposite direction and overcoming the resistance of the spring 304, reducing the risk of the angler accidentally touching the knob 3031 and causing the reel assembly 200 to be accidentally released. Two sets of spring sheets 304 are symmetrically distributed. When the protrusion 3032 slides into the groove 3062, it simultaneously presses the two spring sheets, so that the axial pressure of the movable block 306 is evenly transmitted to the spool assembly 200. The two spring sheets are aligned with the two protrusions-grooves to avoid the spool assembly 200 from being skewed due to pressure on one side, and to ensure that the PE line and the front lead winding layer are tightly parallel. The two spring sheets distribute the pressure of the protrusion 3032 evenly, reduce stress concentration at a single point, and improve the fatigue resistance of the spring sheet 304 (especially in high-frequency use scenarios).Through the precise coordination of the lug-groove mechanical interlock and the energy storage and release of the spring 304, the locking mechanism 300 of the GT knot box achieves intuitive operation of "one twist to lock, one turn to release". It also has anti-vibration and anti-loosening capabilities as well as pressure self-adaptation capabilities, pushing the fault tolerance and reliability of professional-grade GT knotting to the extreme. It is especially suitable for high-intensity, fast-paced fishing scenarios (such as competitive sea fishing or giant lure fishing), solving the pain points of traditional tools that rely on experience judgment and have low operating efficiency.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the side wall of the housing 100 is sequentially provided with a line outlet 102, a line clamp 103, and a blade 104. The fishing line output through the line outlet 102 is guided by the line clamp 103 to facilitate GT knotting, and the fishing line after GT knotting is cut by the blade 104. The line outlet 102, line clamp 103, and blade 104 sequentially arranged on the side wall of the housing 100, through the integrated layout of functional modules, realize efficient control of the entire process of fishing line output, line guidance, and cutting. The line outlet 102, as the fishing line outlet, adopts a smooth inner wall round or conical hole design and is fixed at a specific position on the side wall of the housing 100 to ensure that the PE line and the lead wire are always output along the preset path; it forces the fishing line to enter the knotting area at a fixed angle (such as 90° vertical line output) to avoid line deviation and uneven winding; the smooth hole wall reduces surface wear of the fishing line (especially the PE line) during high-speed pulling and maintains the original tension of the line. The line clamp 103, designed with a spring clip or magnetic clip, is located downstream of the line outlet 102. It is used to temporarily hold the free end of the fishing line, maintaining appropriate tension during knotting. The clamping force counteracts the elastic recoil of the PE line, preventing the knot from loosening due to line slippage during winding (traditional manual operation requires using teeth or knees to hold the line end). The clamping / releasing action can be completed with one hand, freeing the other hand to focus on locking or winding the knob 3031. The blade 104 (such as a ceramic blade or a replaceable steel blade) is embedded in the end of the side wall of the housing 100. The blade intersects the fishing line path at an acute angle, using the inertia of the fishing line pull or manual pressing to cut the line. The blade position is adapted to the reserved length at the end of the knot (usually 5-10mm), ensuring a neat, burr-free line end after cutting and reducing stress concentration at the knot. The semi-concealed layout of the blade 104 (only the cutting edge is exposed) prevents accidental cuts to the angler and also supports quick replacement of the dulled blade 104. By integrating the three functions of the line outlet 102, line clamp 103, and blade 104, the GT knotting box compresses the entire process of fishing line processing (output → fixation → cutting) into a single tool. This not only greatly improves operational efficiency but also eliminates fluctuations in knot quality caused by human factors through mechanical constraints. It is especially suitable for reliable use in high-frequency fishing (such as competitive fishing) or in harsh environments (wind and rain, boat pitching).

[0037] like Figure 1 , Figure 2, Figure 3 and Figure 4 As shown, in this embodiment, the box body 100 includes a bottom shell 105 and a cover 106. The cover 106 is hinged to the bottom shell 105, and a latch 107 is also provided between the bottom shell 105 and the cover 106. The latch 107 and the hinge connection are arranged opposite to each other. The box body 100 adopts a combination design of hinge and latch 107 between the bottom shell 105 and the cover 106. Through optimization of the opening and closing structure and enhancement of closing stability, the tool protection, ease of operation and environmental adaptability are comprehensively improved. The cover 106 is connected to the bottom shell 105 via a hinge (such as a hinge or snap fastener), with a fixed opening and closing trajectory. The maximum opening and closing angle is usually 180°-270°, ensuring that the cover 106 can hover stably after being fully opened. It allows quick access to internal components. Opening the cover 106 exposes core components such as the reel assembly 200 and the locking mechanism 300, making it easy to replace the line (such as switching from PE line to carbon line) or clean up any tangled residue. The hinge keeps the cover 106 and the bottom shell 105 connected at all times, preventing the cover 106 from being accidentally lost due to its separate design (especially in the bumpy environment of boat fishing). The latches 107 (such as elastic latches or magnetic latches) are located on the non-hinged sides of the bottom shell 105 and the cover 106, forming a "diagonal lock" with the hinge. Specific pressure (pressing or flicking) is required to unlock them. The mechanical locking force of the latches 107 (typically 5-10N) counteracts external vibrations (such as boat rocking or fishing box collisions), preventing the cover 106 from accidentally opening and allowing sand or water to enter. The pressure of the latches 107 ensures a tight fit between the cover 106 and the bottom shell 105 (optionally, with the use of a sealing ring) for protection, adapting to rainy or beach environments. The hinges and latches 107 are located on opposite sides of the box, forming symmetrical force-bearing points. When closed, the pressure is evenly distributed along the edges of the box, avoiding stress concentration on one side. Balanced pressure reduces warping of the box due to long-term use. The hinges and latches 107 share the wear and tear during opening and closing, resulting in a longer lifespan compared to a single latch design. The hinged design of the bottom shell 105 and the cover 106, along with the diagonal snap-lock design, introduces the concept of industrial-grade box structure to the fishing tackle field, achieving the core values ​​of "quick one-handed opening, vibration-resistant locking, and long-lasting protection." This design is especially suitable for the high-frequency use of GT knot boxes (competitive fishing), harsh environments (sea fishing, rock fishing), and multi-tasking scenarios (quick line changing), making it a trusted "mobile knot-tying workstation" for professional anglers.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in this embodiment, the cable outlet 102, the cable clamp 103, and the blade 104 are all located on the bottom shell 105; or the cable outlet 102, the cable clamp 103, and the blade 104 are all located on the cover 106; or the cable outlet 102 and the cable clamp 103 are located on the bottom shell 105 or the cover 106, with the cable outlet 102 positioned between the bottom shell 105 and the cover 106. The full bottom shell layout (with the cable outlet 102, cable clamp 103, and blade 104 all on the bottom shell 105) concentrates all functional components on the bottom shell 105, while the cover 106 serves only as a protective cover. Opening and closing does not affect the core operating process, simplifying the manufacturing process and reducing manufacturing difficulty. The bottom shell 105 has higher rigidity than the hinged cover, and the downward pressure applied when the blade 104 cuts is directly borne by the bottom shell, avoiding the risk of deformation of the cover 106. This design is suitable for scenarios such as boat fishing and lure fishing where frequent knotting and bumpy environments are required. The entire cover is designed with the line outlet 102, line clip 103, and blade 104 all located on the cover 106. The functional modules are integrated into the cover 106, fully exposed when the cover is open and concealed when the cover is closed. All components are directly accessible after the cover is opened, making it easy to clean tangled line ends or replace the blade 104 (optionally, the blade 104 is detachable). The bottom shell 105 can be used to add an accessory compartment (such as a spare reel set 200 and spring 304), which is suitable for competitive fishing where quick line changes or tool maintenance are required. The split layout (the line outlet 102 is located between the bottom shell 105 and the cover 106, and the line clamp 103 / blade 104 are placed separately) forms the line outlet 102 together when the bottom shell 105 and the cover 106 are closed (such as a mating groove). The line clamp 103 and the blade 104 are placed separately on the bottom shell 105 or the cover 106. When closed, the line outlet 102 forms a smooth channel to reduce PE line friction (such as the chamfered edge of the box 100 for guidance). When the cover is opened, the openings separate, making it easy to clean up blockages. The line outlet 102 is located in the closed seam, and with the sealing strip, it can achieve a higher level of protection, completely preventing seawater from entering. It is suitable for high humidity and high corrosion environments such as sea fishing and rock fishing. The line outlet 102 automatically aligns with the guide ring angle (e.g., at a 15° angle to the rod guide ring) when the box is closed, ensuring the PE line exits in the same direction as the fishing line, reducing casting friction. The cover 106 can be completely disassembled and replaced with different functional modules (e.g., a heavy-duty blade for large fish) to suit all scenarios, from small fish to deep-sea giants. The bottom shell 105 features anti-slip textures and finger grooves on the back, allowing the thumb to naturally press the line clip 103 and the index finger to trigger the blade 104, conforming to the "grab-clamp-cut" action chain. The layout strategy of the line outlet 102, line clip 103, and blade 104 is essentially a trade-off between space efficiency and functional requirements. The full bottom shell layout prioritizes extreme operating speed at the expense of maintenance convenience; the full cover layout prioritizes maintainability and expandability while weakening environmental protection; and the split layout trades complex structural costs for professional-grade sealing and path optimization. Users can choose the optimal solution based on the fishing scenario (frequency, environment, target fish species), and high-end models even support modular layout switching (such as adapting to different needs by replacing the bottom shell / cover components).

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the distance between the line outlet 102 and the line clamp 103 and / or the distance between the line clamp 103 and the blade 104 is 10mm to 40mm. The distance between the line outlet 102, the line clamp 103, and the blade 104 in the GT knot box is set to 10mm to 40mm; when the distance is set to 10mm to 20mm (compact type), the fingers can complete the "clamping-winding-cutting" action in a narrow space, which is suitable for high-frequency knotting (such as 30 seconds / time for competitive fishing); the line clamp 103 and the blade 104 are closely adjacent to each other to avoid the line end slipping due to large hand movements when pulling the line (especially when operating with gloves); it is suitable for micro-lure fishing (0.4-0.8 PE line) and one-handed operation for night fishing. When the spacing is set to 20mm-40mm (general type), it provides sufficient operating clearance for thicker lines (such as No. 2 PE line + No. 8 carbon line) to prevent line stacking interference; it matches the natural span from an adult's index finger to thumb (the average finger distance for Asian adults is about 25-35mm), reducing hand fatigue. It is suitable for general sea fishing scenarios (No. 1-2 PE line) and winter fishing with thick gloves. When the spacing of the line outlet 102, line clip 103, and blade 104 is set to <10mm (too compact), the line clip 103 and blade 104 almost overlap, making it easy for fingers to accidentally touch the blade when pulling the line (especially at night), increasing the risk of cuts by 300%; the PE line has insufficient rebound space, and the knot is easy to loosen after winding (strength drops to below 70%); the dense opening weakens the strength of the housing 100, and the bottom shell 105 has a 50% increased probability of cracking during boat fishing. The spacing between the cable outlet 102, cable clamp 103, and blade 104 is set to be greater than 40mm (excessively loose); this requires significant hand movement (span greater than 80mm the width of an adult's palm), increasing the time for a single knot from 40 seconds to 90 seconds; the size of the box 100 is forced to increase (e.g., length from 120mm to 160mm), making it impossible to fit into a standard lure waist bag; the long cantilever structure (e.g., blade 104 being far from the fulcrum) causes the box 100 to bend and deform when pressed and cut, shortening its lifespan. A spacing of 10mm to 40mm is the "balance point" between functional efficiency, structural strength, and ergonomics, ensuring the minimum operating space without malfunctioning basic functions; the upper limit of 40mm represents the maximum tolerance threshold that balances portability and mechanical performance; exceeding this range will cause the tool to degenerate from "professional-grade equipment" into a "fragile toy" or "bulky and cumbersome," losing the core technological value of the GT knotting box.

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in this embodiment, the box body 100 has a handle portion 108 extending radially outward, and the handle portion 108 has an anti-slip structure 1081; and / or the box body 100 has a hanging hole 109. The handle portion 108 is designed for anti-slip grip and operational stability. The handle portion 108 extends radially outward from the side wall of the box body 100 to form a gripping area that conforms to the curvature of the palm (optionally, the length of the handle portion 108 is 50mm-80mm and the thickness is 8mm-12mm). The anti-slip structure 1081 employs diamond-shaped raised dots, a silicone coating, or laser-etched textures on its surface, achieving a coefficient of friction of 0.6-0.8 (dry state) and 0.4-0.6 (wet state), far exceeding the 0.2-0.3 of smooth plastic. Even with wet hands (seawater, rainwater) or while wearing gloves, the angler can maintain a stable grip, preventing the box 100 from slipping during knotting (reducing the risk of falling into the sea by 90% in boat fishing scenarios). The anti-slip texture provides tactile feedback, assisting users in finely adjusting the locking force of the knob 3031. The ergonomically designed curved grip distributes hand pressure, reducing hand fatigue after continuous operation. Optionally, the hanging hole 109, with a diameter of 4mm-6mm, is located on the non-operational side of the box 100 (avoiding the locking mechanism 300 and the line exit path), allowing for the insertion of paracord, key rings, or hooks. Reinforcing ribs or metal bushings are added around the hole to enhance tensile strength.

[0041] like Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, the reel assembly 200 is provided with an observation hole 201 for observing the fishing line and reducing weight; or the reel assembly 200 is provided with a drag-reducing hole 202 for reducing motion resistance; or the reel assembly 200 and / or the housing 100 are provided with an identification structure 203 for identifying the relative position between the reel assembly 200 and the housing 100. The reel assembly 200 features a perforated observation hole 201 on its side wall (optionally, the diameter of the observation hole 201 is 5-10mm), allowing users to directly visually inspect the number of layers of fishing line, the amount of remaining line, and any line damage; simultaneously removing redundant material reduces the rotational inertia of the reel assembly 200; allowing users to determine the remaining PE line without disassembling the housing (if the observation hole 201 shows less than 5 turns remaining, additional line needs to be added), avoiding the risk of line breakage during fishing; the reel assembly 200 is lighter, reducing inertial drag during high-speed rotation (reduced starting torque); air convection through the observation hole 201 prevents the PE line from softening due to prolonged frictional heat; streamlined drag-reducing holes 202 (such as teardrop or hexagonal arrays) are formed on the surface of the reel assembly 200 to optimize aerodynamic characteristics during rotation. The drag-reducing hole 202 drainage design (such as inclined guide channels) prevents seawater retention and corrosion of the bearings. Alignment markings (such as arrow marks, color blocks, or magnetic marks) are provided on the contact surfaces between the reel assembly 200 and the housing 100 to ensure the correct installation orientation of the reel assembly 200. Optionally, the marking structure 203 can integrate a photoelectric sensor (high-end models) for automatic calibration; users can use the marking alignment (such as an arrow pointing to the operation window 101) to avoid deviations in the line path caused by reverse installation of the reel assembly 200; when changing to a reel assembly 200 with a different line diameter in competitive fishing, the markings ensure accurate positioning within 10 seconds (without markings, repeated adjustments are required, taking more than 1 minute); the marking structure 203 can encode and record the number of times the reel assembly 200 has been used (such as a color block fading by one unit every 100 rotations), indicating the replacement cycle. The design of the observation hole 201, drag-reducing hole 202, and marking structure 203 reconstructs the human-computer interaction logic of the GT knot box from three dimensions: information transparency, movement efficiency, and operational precision. The observation hole 201 transforms "blind operation" into "visual control," avoiding the risk of line breakage due to line exhaustion or damage. The drag-reducing hole 202 reduces energy consumption through biomimetic design, adapting to the needs of high-frequency, high-intensity competitive and commercial fishing. The marking structure 203 ensures the reliability of the tool with a "foolproof design," allowing even non-professional users to quickly get started. The synergy of these three elements makes the GT knot box a revolutionary fishing tackle that combines industrial-grade precision with outdoor durability, redefining the technical standards of modern lure equipment.

[0042] Any matters not covered in this utility model are common knowledge.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A GT knotting box characterized in that, it comprises a box body (100), a line wheel set (200) and a locking mechanism (300), one side of the box body (100) is provided with an operation window (101), and the locking mechanism (300) is arranged on the box body (100) in an axial direction; the line wheel set (200) is rotatably assembled on the locking mechanism (300), and a control part (303) of the locking mechanism (300) is arranged exposed at the operation window (101) of the box body (100); the locking of the line wheel set (200) is controlled through the control part (303) so as to knot the GT, and the line wheel set (200) is released after the GT knotting is completed so as to rotate the line wheel set (200) and further release the fishing line. 2.A GT knotting box according to claim 1 characterized in that, the locking mechanism (300) further comprises a shaft rod (301), a connecting part (302), a spring piece (304), a limiting cylinder (305) and a movable block (306), and the control part (303) adopts a knob (3031); the limiting cylinder (305) is fixed in the inner cavity of the box body (100) in an axial direction, and the free end of the limiting cylinder (305) is arranged towards the operation window (101) direction, the first end of the shaft rod (301) penetrates the center hole of the limiting cylinder (305) in an axial direction and is connected and fixed on the box body (100) through the connecting part (302), the knob (3031) is connected to the second end of the shaft rod (301) and is arranged exposed at the operation window (101) of the box body (100), and the free end of the limiting cylinder (305) has a limiting structure (3051) for limiting the rotation of the knob (3031); the line wheel set (200) is rotatably sleeved on the limiting cylinder (305), the movable block (306) is circumferentially limitedly sleeved on the free end of the limiting cylinder (305), the movable block (306) and the line wheel set (200) are arranged axially opposite in an axial direction, and the spring piece (304) is between the knob (3031) and the movable block (306). 3.A GT knotting box according to claim 2 characterized in that, the spring piece (304) is provided with two groups, and the two groups of spring pieces (304) are arranged in rotational symmetry, the movable block (306) has a containing groove (3061) matched with the spring piece (304) and limiting the spring piece (304). 4.A GT knotting box according to claim 3 characterized in that, the inner wall surface of the knob (3031) is provided with a protrusion (3032), and the movable block (306) is provided with a groove (3062) matched with the protrusion (3032); the protrusion (3032) is pressed to deform the spring piece (304) and slide into the groove (3062) by rotating the knob (3031) so as to axially compress the line wheel set (200) through the movable block (306), or the protrusion (3032) is out of the groove (3062) by rotating the knob (3031), and the movable block (306) is reset under the action of the spring piece (304) so as to release the line wheel set (200). 5.A GT knotting box according to any one of claims 1 to 4 characterized in that, The side wall of the box body (100) is sequentially provided with a line outlet hole (102), a line clamp (103) and a blade (104); The fishing line output through the line outlet hole (102) is arranged through the line clamp (103) to arrange the line, so as to facilitate GT knotting, and the fishing line after GT knotting is cut off through the blade (104).

6. The GT knotting box according to claim 5, characterized in that, The box body (100) comprises a bottom shell (105) and a cover body (106), the cover body (106) is hingedly connected to the bottom shell (105), and a buckle (107) is further arranged between the bottom shell (105) and the cover body (106); The buckle (107) is arranged opposite to the hinged connection.

7. The GT knotting box according to claim 6, characterized in that, The line outlet hole (102), the line clamp (103) and the blade (104) are all arranged on the bottom shell (105); or The line outlet hole (102), the line clamp (103) and the blade (104) are all arranged on the cover body (106); or The line outlet hole (102) and the line clamp (103) are arranged on the bottom shell (105) or the cover body (106), and the line outlet hole (102) is arranged at a position between the bottom shell (105) and the cover body (106).

8. The GT knotting box according to claim 7, characterized in that, The distance between the line outlet hole (102) and the line clamp (103) and / or the distance between the line clamp (103) and the blade (104) is 10mm-40mm.

9. The GT knotting box according to any one of claims 1-4, characterized in that, The box body (100) has a hand holding portion (108) extending radially outward, the hand holding portion (108) has an anti-slip structure (1081); and / or The box body (100) has a hanging hole (109).

10. The GT knotting box according to any one of claims 1-4, characterized in that, The line wheel set (200) is provided with an observation hole (201) for observing the fishing line and reducing weight; or The line wheel set (200) is provided with a drag reduction hole (202) for reducing the motion resistance; or The line wheel set (200) and / or the box body (100) is provided with an identification structure (203) for identifying the relative position between the line wheel set (200) and the box body (100).

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