A lighted float

Abstract

This invention relates to a luminous float. The luminous float includes a float tail with a first battery slot for accommodating a portion of a battery; the outer wall of the float tail has a first external thread; and a circuit board and a light-emitting element are disposed within the float tail. A locking cap has a second battery slot for accommodating the remaining portion of the battery; the inner wall of the locking cap has a first internal thread that mates with the first external thread. A float body is threadedly and fixedly connected to either the float tail or the locking cap. When the float tail and the locking cap are locked together, the circuit board illuminates the light-emitting element via the battery. This invention provides a luminous float with a compact overall structure and reliable performance, avoiding the loosening, poor contact, and extremely high failure rate issues that often occur with luminous floats during long-distance casting.

Description

Technical Field

[0001] This invention relates to the field of fishing tackle technology, and in particular to a luminous float. Background Technology

[0002] A luminous float is a fishing float with a built-in light-emitting element that is powered by a battery. It is widely used for night fishing or fishing in low-light conditions. A luminous float generally consists of a float body, float tip, float stem, battery, light-emitting element, and conductive components. The upper part of the float tip is usually made of a semi-transparent material to allow light to pass through; the light-emitting element is located inside the float tip and forms a circuit with the battery through the conductive components. When the circuit is open, the light-emitting element emits light.

[0003] Existing methods for securing batteries in luminous floats typically rely on a snap-fit ​​or interference fit between the conductive components and the battery, or on the frictional resistance between the inner wall of the battery housing and the outer periphery of the battery to restrict battery movement. However, during long-distance casting, these methods subject the float to significant inertial impacts and vibrations, making the battery prone to loosening or displacement. This can lead to poor contact between the conductive components and the battery electrodes, causing the luminous material to flicker or extinguish. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, this invention provides a luminous float with a compact overall structure and reliable performance, which avoids the issues of loosening, poor contact, and extremely high failure rates that occur when luminous floats are cast over long distances.

[0005] Specifically, the present invention proposes a luminous float, comprising: The float has a first battery slot for accommodating a portion of the battery. The outer side wall of the float has a first external thread, and the float contains a circuit board and a light-emitting element. The locking cap has a second battery slot for accommodating another part of the battery, and the inner wall of the locking cap has a first internal thread that engages with the first external thread. The float body is fixedly connected to the float tail or the locking cap via a threaded engagement. When the drift tail and the locking cap are locked together, the circuit board illuminates the light source through the battery.

[0006] According to one embodiment of the present invention, the outer side wall of the float tail is provided with a second external thread protruding radially outward, the second external thread being located above the first external thread, the float body having a hollow structure, the inner side wall of the float body being provided with a second internal thread, the second internal thread engaging with the second external thread.

[0007] According to one embodiment of the present invention, the outer side wall of the locking cap is provided with a third external thread, the float body is a hollow structure, the inner side wall of the float body is provided with a third internal thread, and the third internal thread mates with the third external thread.

[0008] According to one embodiment of the present invention, the bottom of the locking cap is flat or conical.

[0009] According to one embodiment of the present invention, the bottom of the locking cap is provided with a through hole.

[0010] According to one embodiment of the present invention, the locking cap is provided with a gasket for contacting the bottom of the battery.

[0011] According to one embodiment of the present invention, the locking cap is provided with a spring for contacting the bottom of the battery.

[0012] According to one embodiment of the present invention, the bottom of the locking cap is provided with a threaded hole, and a bolt is fitted in the threaded hole for contacting the bottom of the battery.

[0013] According to one embodiment of the present invention, the circuit board is provided with a downwardly protruding slot structure, the top surface of the battery is the positive terminal of the battery, and a negative terminal pin of the battery is formed at the center of the positive terminal of the battery, the pin being adapted to be inserted and fixed with the slot structure.

[0014] According to one embodiment of the present invention, a helical spring is sleeved on the outside of the slot structure, and the positive terminal of the battery is electrically connected to the circuit board through the helical spring.

[0015] According to one embodiment of the present invention, the light-emitting body includes an LED lamp and / or a light-guiding optical fiber.

[0016] This invention provides a luminous float that achieves mechanical fastening of the battery through the threaded engagement of the first internal thread on the inner wall of the locking cap and the first external thread on the outer wall of the float tip. Compared to traditional snap-fit ​​or interference fits, the threaded engagement provides a continuous and stable fastening force, preventing loosening even after prolonged use. Simultaneously, the threaded connection between the float body and the float tip or locking cap creates a second threaded fixation. The combined effect of these two threaded engagements further enhances the structural stability of the battery, effectively solving the technical problem of insufficient battery fixation reliability. The sealing ring further improves waterproof performance, protecting the battery and electrical connection components from moisture corrosion.

[0017] It should be understood that the above general description and the following detailed description of the present invention are exemplary and illustrative, and are intended to provide further explanation of the present invention. Attached Figure Description

[0018] The accompanying drawings are included to provide a further understanding of the invention; they are incorporated into and constitute a part of this application. The drawings illustrate embodiments of the invention and, together with this specification, serve to explain the principles of the invention. In the drawings: Figure 1 A schematic diagram of the structure of a luminous float according to an embodiment of the present invention is shown.

[0019] Figure 2 A schematic diagram of the structure of a luminous float according to another embodiment of the present invention is shown.

[0020] Figure 3 A schematic diagram of the locking cap according to an embodiment of the present invention is shown.

[0021] Figure 4 A schematic diagram of the locking cap according to another embodiment of the present invention is shown.

[0022] Figure 5 A schematic diagram of the locking cap according to another embodiment of the present invention is shown.

[0023] Figure 6 A schematic diagram of the locking cap according to another embodiment of the present invention is shown.

[0024] Figure 7 A schematic diagram of the locking cap according to another embodiment of the present invention is shown.

[0025] Figure 8 A schematic diagram of the locking cap according to another embodiment of the present invention is shown.

[0026] Figure 9 A schematic diagram of the structure of a drift tail according to an embodiment of the present invention is shown.

[0027] Figure 10 A schematic diagram of the drift tail structure according to another embodiment of the present invention is shown.

[0028] The above figures include the following reference numerals: 100 luminous floats Floating tail 110 First battery compartment 111 Circuit board 112 113 luminescent body Second external thread 114 LED light 115 Fiber optic cable 116 Copper Wire Lamp 117 Color-changing chip 118 Slot structure 119 Locking cap 120 Second battery compartment 121 Third external thread 122 Annular contact surface 123 First round pipe fitting 124 Second round pipe fitting 125 Connecting part 126 Gasket 127 Threaded hole 128 Battery 130 Battery positive terminal 131 Negative terminal pin 132 Coil spring 133 Floating body 140 150 sealing ring 160 bolts Floating feet 170 Hanging ring 180 190 protective sleeve Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0033] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0035] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0036] Figure 1 A schematic diagram of the structure of a luminous float according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of the structure of a luminous float according to another embodiment of the present invention is shown. As shown, in some examples, the luminous float 100 includes a float tail 110, a locking cap 120, a battery 130, and a float body 140. The bottom of the float tail 110 is provided with a first battery slot 111 for accommodating the upper part of the battery 130. The float tail 110 also contains a circuit board 112 and a light-emitting element 113, which are electrically connected via conductive lines. The outer side wall of the float tail 110 is provided with a first external thread for engaging with the locking cap 120. The locking cap 120 is an independent, detachable component, and its interior is provided with a second battery slot 121. The inner side wall of the second battery slot 121 is machined with a first internal thread, which engages with the first external thread on the outer side of the float tail 110. As an example, and not a limitation, the first external thread and the first internal thread can be standard metric threads. The pitch is reasonably set according to the size of the battery 130 and the locking force requirements, usually in the range of 0.5 mm to 1.5 mm, to balance locking speed and connection strength. The thread direction is usually right-handed, which conforms to the operating habits of general users, but left-handed design can also be used according to special requirements.

[0037] The negative terminal of battery 130 is inserted into the first battery slot 111 with the float 110 facing inwards, and the lower part of battery 130 protrudes outside the first battery slot 111. When the locking cap 120 is tightened along the first external thread, the lower part of battery 130 gradually extends into the second battery slot 121, and the inner wall of the locking cap 120 contacts the bottom surface of battery 130 and pushes battery 130 upwards, so that battery 130 is stably clamped between float 110 and locking cap 120. During this assembly process, as the locking cap 120 is screwed in, battery 130 slides axially upwards in the first battery slot 111 until the positive terminal of battery 130 makes reliable contact with the conductive area of ​​circuit board 112. Float 110 or locking cap 120 is fixed to float body 140 by a threaded engagement, i.e., a secondary threaded engagement. The luminous float 100 employs a double-threaded engagement, generating a continuous axial clamping force during rotation and tightening to stably hold the battery 130. The threaded engagement also resists external forces generated during use, such as water flow impact, casting vibration, and fish biting, avoiding the loosening problems caused by wear in traditional snap-fit ​​or interference fits. The float body 140 is threadedly fixed to the float tip 110 or locking cap 120. When the float tip 110 and locking cap 120 are locked together, the circuit board 112 illuminates the light-emitting element 113 via the battery 130.

[0038] In some examples, reference Figure 1 The outer wall of the float tip 110 is provided with a second external thread 114 protruding radially outward, located above the first external thread. The float body 140 is a hollow structure with a second internal thread on its inner wall. The second internal thread and the second external thread 114 are threadedly engaged to fix the float tip 110 and the float body 140. With this structure, the float body 140 and the float tip 110 are fixed together by the second internal thread and the second external thread 114, forming a second threaded fixation. The two threaded engagements work together to further improve the structural stability of the battery 130, making the overall connection of the float more secure and reliable. During assembly, first, the lower part of the float tip 110 containing the battery 130 is screwed into the locking cap 120 through the first external thread and the first internal thread. Then, the float tip 110 and the float body 140 are screwed together and fixed by the second external thread 114 and the second internal thread. The two threaded fixations are independent of each other, facilitating step-by-step assembly and subsequent maintenance.

[0039] In some examples, reference Figure 2The locking cap 120 has a third external thread 122 on its outer wall, and the float body 140 has a hollow structure with a third internal thread on its inner wall. The third internal thread and the third external thread 122 engage to fix the locking cap 120 and the float body 140 together. With this structure, the locking cap 120 and the float body 140 are fixed together by a second thread through the third internal thread and the third external thread 122. The combined effect of these two thread engagements further enhances the structural stability of the battery 130, making the overall connection of the float more robust and reliable. Compared to the design where the float tail 110 has a second external thread 114, placing the third external thread 122 on the locking cap 120 shortens the axial length of the float tail 110, making its structure simpler. Simultaneously, the locking cap 120 serves the dual function of securing the battery 130 and connecting the float body 140, reducing the number of parts and simplifying the assembly process. This embodiment is suitable for designs that prioritize compact structure and streamlined components.

[0040] In some examples, reference Figure 1 The luminous float 100 also includes a sealing ring 150. The top of the locking cap 120 forms an annular contact surface 123, and the sealing ring 150 is positioned between the second external thread 114 and the annular contact surface 123. When the locking cap 120 is tightened, the bottom of the second external thread 114 forms a contact limit with the annular contact surface 123, pressing the sealing ring 150 and limiting the depth to which the locking cap 120 can be further screwed in. The sealing ring 150 is typically made of an elastic material such as rubber or silicone, and its cross-sectional shape can be circular or rectangular to accommodate the fit gap between the float tail 110 and the locking cap 120. When the thread is tightened, the annular contact surface 123 of the locking cap 120 contacts the lower surface of the sealing ring 150 and applies axial pressure, causing the sealing ring 150 to elastically deform and fill the fit gap, thereby blocking the path of water penetration and achieving a reliable waterproof seal. The annular contact surface 123, while compressing the sealing ring 150, limits the depth to which the locking cap 120 can be screwed in, achieving a sealing effect and preventing the battery 130 from being excessively compressed or the sealing ring 150 from being crushed due to over-tightening of the locking cap 120. The tightening force can be adjusted by tightening or loosening the threads to suit different users' operating habits. By way of example and not limitation, the sealing ring 150 is made of nitrile rubber or silicone rubber, ensuring both good elastic recovery and sufficient wear resistance and water resistance. In the tightened state, the compression of the sealing ring 150 is typically controlled within the range of 15% to 30% of its cross-sectional diameter. This provides sufficient sealing pressure to prevent moisture penetration without causing permanent deformation or damage to the sealing ring 150 due to over-compression. Even after long-term use, if the sealing ring 150 hardens or shrinks to some extent due to aging, the performance degradation of the sealing ring 150 can still be compensated by appropriately increasing the tightening force of the locking cap 120, maintaining a reliable waterproof effect.

[0041] In some examples, the sealing ring 150 is fitted onto the outer wall of the float 110 and located below the second external thread 114. The sealing ring 150 is naturally limited by the bottom of the second external thread 114, and when the locking cap 120 is tightened, the annular contact surface 123 directly presses against the sealing ring 150 to achieve a seal. This layout is simple in structure, requires no additional positioning structure, and is easy to assemble and mass-produce. The outer diameter of the sealing ring 150 is slightly smaller than the outer diameter of the annular contact surface 123. During assembly, the sealing ring 150 is slightly compressed and pre-tightened, and when the locking cap 120 is tightened, it is further compressed and deformed to form a reliable sealing barrier.

[0042] In some examples, a sealing ring 150 groove is provided on the bottom surface or annular contact surface 123 of the second external thread 114, and the sealing ring 150 is disposed within the sealing ring 150 groove. The sealing ring 150 groove provides precise positioning for the sealing ring 150, preventing the sealing ring 150 from shifting in the circumferential or radial direction, thereby improving the reliability and stability of the seal. By way of example and not limitation, the sealing ring 150 groove can be a recess with a rectangular or semi-circular cross-section, the depth and width of which are reasonably set according to the cross-sectional dimensions of the sealing ring 150, typically in the range of 0.3 mm to 1.0 mm, to ensure that the sealing ring 150 maintains a stable sealing effect after being deformed under pressure. The bottom of the sealing ring 150 groove may be chamfered to facilitate the assembly and positioning of the sealing ring 150.

[0043] Figure 3 A schematic diagram of the locking cap according to an embodiment of the present invention is shown. Figure 4 A schematic diagram of the locking cap according to another embodiment of the present invention is shown. Figure 5 A schematic diagram of the locking cap according to another embodiment of the present invention is shown. Figure 6 A schematic diagram of the locking cap according to another embodiment of the present invention is shown. Figure 7 A schematic diagram of the locking cap according to another embodiment of the present invention is shown. Figure 8 A schematic diagram of the locking cap according to another embodiment of the present invention is shown. In some examples, the bottom of the locking cap 120 is flat or conical. (See reference) Figure 3 , Figure 6 and Figure 8 The locking cap 120 has a flat bottom. This flat bottom makes large-area contact with the bottom surface of the battery 130, providing stable support and even force distribution, making it suitable for battery type 130 with relatively flat bottoms. (Reference) Figure 4The bottom of the locking cap 120 is conical. The inner surface of the conical bottom tapers in a conical shape, which guides and positions the outer edge of the bottom of the battery 130. Even before the battery 130 is fully tightened, the conical surface guides it to slide naturally into the center position, facilitating quick alignment during assembly. The conical bottom can be selected based on the bottom shape of the battery 130 and process requirements. Flat bottom structures are simple to process, while conical bottoms offer greater assembly tolerance, adapting to different production conditions and usage scenarios.

[0044] In some examples, reference Figure 5 The locking cap 120 is a hollow component. The locking cap 120 includes a first circular tube 124, a second circular tube 125, and a connecting portion 126. The diameter of the first circular tube 124 is larger than that of the second circular tube 125. The connecting portion 126 is a tapered transition piece used to connect the first circular tube 124 and the second circular tube 125. A third external thread 122 is provided on the outer wall of the second circular tube 125. The hollow structure with both ends through-holes makes the locking cap 120 lighter, which helps to lower the overall center of gravity of the float and maintain the float's sensitivity and stability on the water surface. The tapered transition design of the connecting portion 126 can generate axial thrust on the bottom of the battery 130 when tightened, smoothly pushing the battery 130 into the first battery slot 111. The length of the first circular tube 124 is reasonably set according to the exposed length of the battery 130 to ensure that the battery 130 is fully covered and supported.

[0045] In some examples, the locking cap 120 has a through hole at its bottom. The diameter of the through hole is slightly larger than the outer diameter of the negative terminal pin of the battery 130, see reference. Figure 3 and 6 This design facilitates both normal and reverse storage of the battery 130. Specifically, after the luminous float 100 is used, the battery 130 can be removed and inserted backwards into the locking cap 120, allowing the negative terminal pin to pass downwards through the through hole and be stored in the float body 140. This prevents the negative terminal pin from being bent or damaged by collisions with other objects during transport, making storage and carrying easier. In some examples, the edges of the through hole are chamfered or rounded to prevent sharp edges from scratching the surface of the battery 130 or the negative terminal pin.

[0046] In some examples, the locking cap 120 is made of insulating materials such as plastic or nylon. Using insulating materials prevents short circuits between the positive and negative terminals of the battery 130 through the locking cap 120, improving the safety of the float. Simultaneously, the lightweight nature of materials like plastic or nylon helps lower the overall center of gravity of the float, maintaining its sensitivity. By way of example, and not limitation, the locking cap 120 can also be injection molded from engineering plastics such as polycarbonate or ABS plastic. These materials have good mechanical strength and water resistance, making them suitable for long-term use in underwater environments. Furthermore, the locking cap 120 made of insulating material provides a comfortable feel when screwing on, unlike metal materials which can feel cold in low temperatures, enhancing the user experience. The surface of the locking cap 120 can be frosted or knurled to increase friction during screwing, facilitating operation. In some examples, the outer surface of the locking cap 120 has longitudinal or mesh-like anti-slip textures, providing sufficient grip even when hands are wet, preventing slippage during screwing.

[0047] In some examples, reference Figure 7 A gasket 127 is provided inside the locking cap 120. The gasket 127 is located at the bottom of the locking cap 120. When the locking cap 120 is tightened, the bottom of the battery 130 contacts the gasket 127, which smoothly pushes the battery 130 into the first battery slot 111. The gasket 127 can be made of materials with a certain degree of elasticity and strength, such as plastic, rubber, or metal, providing support while cushioning the impact force on the bottom of the battery 130. When the float is impacted by an external force, the gasket 127 can absorb some energy through elastic deformation, preventing the bottom of the battery 130 from directly colliding with the rigid locking cap 120 and causing damage. In some examples, the gasket 127 is disc-shaped, with a diameter slightly smaller than the inner diameter of the second battery slot 121, allowing it to move freely within the slot and adaptively adjust its position, ensuring uniform force on the bottom of the battery 130. The thickness of the gasket 127 is reasonably set according to the size of the battery 130 and the required tightening stroke, typically in the range of 0.5 mm to 2 mm.

[0048] In some examples, the shim 127 can be replaced by an elastic element. The elastic element is located on the bottom inner side of the locking cap 120, serving a supporting function instead of the shim 127. When the locking cap 120 is tightened, the elastic element is compressed, and its rebound force keeps the battery 130 in an upward trend, further enhancing the tightness of the fit between the battery 130 and the first battery slot 111. The elastic properties of the elastic element also provide some vibration damping for the battery 130, absorbing vibration energy generated during use and reducing the adverse effects of vibration on the battery 130 and the electrical connection points. By way of example and not limitation, the elastic element can be a compression spring, a disc spring, or a wave spring, with its elastic coefficient appropriately selected based on the weight of the battery 130 and the required tightening force. Compression springs have a large compression stroke and are suitable for scenarios requiring a large adjustment range; disc springs have high load-bearing capacity and occupy little space; wave springs combine buffering and vibration damping functions.

[0049] In some examples, reference Figure 8 The locking cap 120 has a threaded hole 128 at its bottom, and a bolt 160 fits into the threaded hole 128. The head of the bolt 160 is located outside the locking cap 120, and the shank of the bolt 160 extends into the locking cap 120. After the locking cap 120 is tightened, the bolt 160 is rotated so that the top of the bolt 160 contacts the bottom of the battery 130, pushing the battery 130 into the first battery slot 111. Using the bolt 160 allows for precise adjustment of the insertion depth of the battery 130, accommodating size differences between different batches of batteries 130, and ensuring reliable contact between the battery 130 and the circuit board 112. The bolt 160 can be made of insulating materials such as plastic or nylon, or it can be made of metal. When using a metal bolt 160, it is recommended to add an insulating washer 127 to the top of the bolt 160 to prevent the bolt 160 from contacting the negative terminal of the battery 130 and causing a short circuit. Bolt 160 typically has a smaller pitch to allow for fine-tuning, with the feed per revolution controlled within the range of 0.3 mm to 0.8 mm.

[0050] Figure 9A schematic diagram of the structure of a drift tail according to an embodiment of the present invention is shown. As shown, in some examples, a circuit board 112 is disposed inside the drift tail 110. The circuit board 112 is fixed in the internal cavity of the drift tail 110, and is typically positioned by means of snap-fit, adhesive or interference fit to ensure that it will not shift under vibration. The circuit board 112 has a downwardly protruding slot structure 119. The top surface of the battery 130 is the positive terminal 131 of the battery, and a negative terminal pin 132 is formed in the center of the positive terminal 131. When the locking cap 120 is tightened, the battery 130 moves upward, and the negative terminal pin 132 is inserted into the slot structure 119 to complete the negative terminal connection. The downwardly protruding design of the slot structure 119 forms a clear insertion space inside the drift tail 110, which facilitates the accurate alignment and insertion of the negative terminal pin 132. The electrical connection can be automatically completed without additional assembly operations, and the insertion depth is also increased, improving the reliability of the electrical connection. The inner wall of the slot structure 119 can be plated with gold or silver to reduce contact resistance and improve conductivity.

[0051] In some examples, a helical spring 133 is fitted around the outer side of the slot structure 119. The upper end of the helical spring 133 abuts against the conductive area of ​​the circuit board 112, and the lower end abuts against the positive terminal 131 of the battery. When the locking cap 120 is tightened, the positive terminal 131 of the battery compresses the helical spring 133, forming a tight electrical contact between the helical spring 133 and the circuit board 112, thus achieving an electrical connection at the positive terminal. The elastic contact pressure provided by the helical spring 133 can compensate for assembly tolerances and maintain a stable contact force even after long-term use, avoiding power interruption due to loose contact. The elastic characteristics of the helical spring 133 also enable it to maintain continuous contact pressure when the float is vibrated, further improving the reliability of the electrical connection. The helical spring 133 is made of a metal material with good conductivity, such as phosphor bronze or beryllium copper alloy, and the surface can be gold-plated to improve corrosion resistance and conductivity. The wire diameter, number of turns, and free height of the helical spring 133 are rationally designed based on the contact area and required contact pressure of the battery positive electrode 131. This pressure range is sufficient to ensure reliable electrical contact without generating excessive mechanical stress on the battery positive electrode 131. Under long-term repeated compression and release conditions, the fatigue life of the helical spring 133 can reach several thousand cycles, meeting the needs of the entire service life of the float.

[0052] In some examples, the light source 113 is an LED lamp 115, an LED lamp 115 and a light guide fiber 116, or a copper wire lamp 117. (See reference) Figure 1 and Figure 2 The light-emitting element 113 is an LED lamp 115. The LED lamp 115 is small in size, has low power consumption, and high brightness, making it suitable as a direct light source for the float. It can be directly soldered or plugged into the circuit board 112. (Reference) Figure 9The light-emitting element 113 is a combination of an LED lamp 115 and a light-guiding optical fiber 116. The light-guiding optical fiber 116 is housed within the protective sleeve 190 of the float 110, which can guide the light emitted by the LED lamp 115 from the lower end of the float 110 to a specific position or evenly scatter it along the entire protective sleeve 190, making the light emission more uniform and softer. When the two are combined, the LED lamp 115 acts as the light source, and the light-guiding optical fiber 116 guides and disperses the light, resulting in a uniform light emission effect for the entire float 110, avoiding the glare problem of a single LED lamp 115 as a point light source. Figure 10 A schematic diagram of the float tip and locking cap according to another embodiment of the present invention is shown. As shown, the light source 113 is a copper wire lamp 117. The copper wire lamp 117 has the characteristics of a long and thin filament and soft light emission. After being connected to the circuit board 112, it is powered by the battery 130 to emit light. The light emitted by the copper wire lamp 117 shines outward through the transparent or semi-transparent material on the upper part of the float tip 110, forming a unique and soft visual halo effect. Compared with the point light source of the LED lamp 115, it is more decorative and recognizable. At the same time, the copper wire lamp 117 has lower power consumption and can be lit continuously for a longer period of time. The light source 113 can be selected according to the requirements of light intensity, uniformity and power consumption to adapt to different fishing environments.

[0053] In some examples, circuit board 112 also includes a color-changing chip 118. The color-changing chip 118 is electrically connected to circuit board 112 and controls the color of the light-emitting element 113. It can change color according to a preset program in different water depths or when a fish bites, allowing anglers to quickly identify float signals. By way of example and not limitation, the color-changing chip 118 can automatically switch its color at preset time intervals, or it can trigger a color switch when a change in resistance is detected. For example, when a fish bites, causing the float to tilt or sink, the current in the battery 130 power supply circuit changes. The color-changing chip 118 senses this change and switches its color, promptly reminding the angler to lift the rod. The operating current of the color-changing chip 118 is typically in the microamp level, having minimal impact on the overall battery life of 130. In some examples, the color-changing chip 118 can also automatically adjust the brightness of the light-emitting element 113 according to the ambient light intensity, reducing brightness at night to save energy and increasing brightness at dawn or dusk to ensure visibility, further extending the battery life of 130.

[0054] In some examples, reference Figure 2The luminous float 100 also includes a float stem 170. The float stem 170 is located at the bottom of the float body 140 and is typically made of a material with a certain degree of toughness, such as carbon fiber or fiberglass. It possesses strength and elasticity, capable of withstanding the impact of casting without easily breaking. A swivel 180 is located at the bottom of the float stem 170. The swivel 180 is used to directly connect the fishing line. The fishing line can be connected to the swivel 180 via a knot or connector, allowing the float to float stably on the water surface and transmitting the pulling force generated by a fish biting the hook to the fishing line, making it easier for the angler to detect fish bites promptly.

[0055] In some examples, the float foot 170 and the float body 140 are designed as separate units. The upper end of the float foot 170 has an external thread or snap-fit ​​structure that engages with the connecting hole at the bottom of the float body 140 for fixation. When the float foot 170 breaks or is damaged, it can be replaced separately without replacing the entire float, reducing usage costs. The diameter and length of the float foot 170 are rationally selected based on the buoyancy of the float and the usage environment to ensure that it has sufficient rigidity to maintain the float's attitude while also having a certain degree of elasticity to adapt to water flow fluctuations.

[0056] The luminous float provided by this invention has the following advantages: 1. The battery is secured by the threaded engagement of the locking cap and the float tip, providing a continuous and stable axial clamping force that prevents loosening due to wear after long-term use. At the same time, the float body is fixed by a second threaded engagement with the float tip or locking cap, forming a double-threaded fixing structure that further enhances the structural stability of the battery.

[0057] 2. The annular contact surface at the top of the locking cap mates with the sealing ring, forming a sealing barrier while achieving threaded locking, preventing moisture from seeping into the battery compartment area and protecting the battery and electrical connection components.

[0058] 3. The locking cap can be flat or conical to accommodate different battery bottom shapes and assembly process requirements.

[0059] 4. The opening at the bottom of the locking cap makes it easy to store the battery in reverse, preventing damage to the negative terminal pin during storage and transport.

[0060] 5. A gasket, spring, or bolt can be installed inside the locking cap to provide a variety of battery insertion options to meet different usage needs.

[0061] 6. The negative electrode pin and slot structure automatically complete the connection during the thread tightening process, and the positive electrode achieves elastic electrical connection through a helical spring, ensuring reliable dual-path connection between the positive and negative electrodes.

[0062] 7. It can be adapted to various light-emitting bodies such as LED lights, optical fiber lights, and copper wire lights to meet the needs of different light brightness, uniformity and visual effects.

[0063] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments described above without departing from the spirit and scope of the invention. Therefore, it is intended that this invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A luminous float, comprising: The float has a first battery slot for accommodating a portion of the battery. The outer side wall of the float has a first external thread, and the float contains a circuit board and a light-emitting element. The locking cap has a second battery slot for accommodating another part of the battery, and the inner wall of the locking cap has a first internal thread that engages with the first external thread. The float body is fixedly connected to the float tail or the locking cap via a threaded engagement. When the drift tail and the locking cap are locked together, the circuit board illuminates the light source through the battery.

2. The luminous float as described in claim 1, characterized in that, The outer side wall of the float tail is provided with a second external thread protruding radially outward, the second external thread being located above the first external thread. The float body is a hollow structure, and the inner side wall of the float body is provided with a second internal thread, which mates with the second external thread.

3. The luminous float as described in claim 1, characterized in that, The outer side wall of the locking cap is provided with a third external thread, the float body is a hollow structure, the inner side wall of the float body is provided with a third internal thread, and the third internal thread mates with the third external thread.

4. The luminous float as described in claim 1, characterized in that, The bottom of the locking cap is flat or conical.

5. The luminous float as described in claim 1, characterized in that, The bottom of the locking cap has a through hole.

6. The luminous float as described in claim 1, characterized in that, The locking cap has a gasket inside, which is used to contact the bottom of the battery.

7. The luminous float as described in claim 1, characterized in that, The locking cap contains a spring, which is used to contact the bottom of the battery.

8. The luminous float as described in claim 1, characterized in that, The bottom of the locking cap is provided with a threaded hole, and a bolt is fitted into the threaded hole for contacting the bottom of the battery.

9. The luminous float as described in claim 1, characterized in that, The circuit board has a downward-protruding slot structure. The top surface of the battery is the positive terminal of the battery. A negative terminal pin is formed at the center of the positive terminal of the battery. The pin is adapted to be inserted and fixed with the slot structure.

10. The luminous float as described in claim 9, characterized in that, A helical spring is fitted on the outside of the slot structure, and the positive terminal of the battery is electrically connected to the circuit board through the helical spring.

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