Multi-functional smart kettlebell

Abstract

The application provides a multifunctional intelligent kettle bell, which comprises a main body structure, a control unit, an electronic scale assembly arranged at the top of the main body structure, a liquid storage chamber arranged in the main body structure, and a light projection assembly arranged in the liquid storage chamber, wherein the electronic scale assembly weighs the liquid contained in the liquid storage chamber, and the light projection assembly projects and displays the weighing result; the electronic scale assembly, the light projection assembly and the control unit are signal connected and electrically connected, the electronic scale assembly transmits the measured data to the control unit, and the control unit controls the light projection assembly to display the measured value. The multifunctional intelligent kettle bell integrates electronic weighing, light projection display, liquid storage and digital display, can identify the weight of the internal liquid, project and display the weight value on the floor, improves the reading convenience, and realizes intuitive and convenient user experience.

Description

Technical Field

[0001] This invention relates to the field of fitness equipment technology, specifically to a multifunctional intelligent kettlebell that integrates electronic weighing, light projection display, liquid containment, and digital imaging. Background Technology

[0002] With the increasing health awareness of the public, portable, adjustable weight, and multifunctional fitness equipment is becoming increasingly popular. Traditional dumbbells and kettlebells are mostly made of cast iron or solid structure, with fixed weight, large size, inconvenient transportation and storage, and limited function, only able to meet basic weight training needs, and unable to realize intelligent needs such as real-time weight display and data feedback.

[0003] Water-filled adjustable weight dumbbells have already appeared in the prior art. For example, Chinese utility model patent CN223668562U discloses a water-filled dumbbell, including a flexible ball, a handle, and a water inlet. The water inlet is equipped with an automatic valve, which consists of an outer valve body, an inner valve body, a core valve, and a spring. Water is filled and sealed by pressing the core valve, aiming to improve the ease of use and lifespan of the valve. However, this solution only focuses on the water-filling and sealing structure and lacks weight measurement and display functions, so users cannot accurately know the actual load. At the same time, the overall structure is flexible, resulting in poor placement stability, and it does not involve the integration design with an electronic weighing module.

[0004] Another existing technology, such as US Patent US20250367494A1, discloses a multifunctional kettlebell, including a shell with a handle, multiple counterweights, and a detachable handle. The shell consists of two flip-tops with mounting slots on the inside for placing counterweights and fastening them into a kettlebell. Alternatively, the counterweights and handle can be assembled into a dumbbell or barbell. This solution focuses on the mechanical combination and form switching of the counterweights, achieving weight adjustment, but it remains a purely mechanical structure, lacking electronic weighing, data display, and intelligent control capabilities. The counterweights are cumbersome to assemble and disassemble, lack a quick-connect sealing structure, and do not involve external conductive connections or signal transmission designs.

[0005] In summary, existing fitness equipment such as water-filled dumbbells and multi-functional kettlebells generally suffer from low levels of intelligence and lack of accurate weighing and result projection display. The market urgently needs a multi-functional intelligent kettlebell that integrates liquid filling and weight adjustment, electronic weighing, and projection display. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this invention provides a multifunctional intelligent kettlebell, which overcomes the problems of low intelligence, lack of accurate weighing and result projection display in existing fitness equipment such as water-filled dumbbells and multifunctional kettlebells.

[0007] The technical solution of the present invention is as follows: a multifunctional intelligent kettlebell, comprising: a main structure, a control unit, an electronic scale assembly located on the top of the main structure, a liquid storage chamber located within the main structure, and a light projection assembly located in the liquid storage chamber, wherein the electronic scale assembly weighs the liquid contained in the liquid storage chamber, and the light projection assembly projects and displays the weighing result; the electronic scale assembly, the light projection assembly, and the main control unit are signal-connected and electrically connected, the electronic scale assembly transmits the measured data to the main control unit, and the main control unit controls the light projection assembly to display the measured value.

[0008] The main structure is pear-shaped, with the electronic scale assembly and the light projection assembly located at opposite ends of the main structure.

[0009] The electronic scale assembly includes a scale housing, a weighing sensor and a sensor rod disposed inside the scale housing; a sensor mounting base is fixedly disposed inside the scale housing, the weighing sensor is fixedly mounted on the sensor mounting base, one end of the sensor rod is fixed inside the scale housing, and the other end extends out of the scale housing, and is provided with a hanging hole or hook.

[0010] The top of the shell is pointed, and the diameter gradually expands from the top downwards to form the main body of the shell; the top is formed with a through hole for the sensor hanging rod to pass through.

[0011] The electronic scale assembly has a liquid storage chamber located below the weighing shell. An inlet pipe connects the liquid storage chamber to the electronic scale assembly, and a locking protrusion is located on the side wall of the inlet pipe. A receiving groove is located at the connection between the weighing shell and the liquid storage chamber, and an L-shaped mating groove is formed on the groove wall from the groove opening. During assembly, the inlet pipe extends into the receiving groove, and the locking protrusion enters the L-shaped mating groove, sliding circumferentially along the groove wall to form a locking fit with the L-shaped mating groove, thereby sealing the liquid storage chamber. During disassembly, the liquid storage chamber or weighing shell is rotated in the reverse direction, causing the locking protrusion to slide out of the L-shaped mating groove, thus separating the weighing shell from the liquid storage chamber.

[0012] A closed mounting chamber protrudes from the bottom of the liquid storage chamber toward the top of the weighing shell; a light projection assembly is installed in the mounting chamber, which includes an LED light located at the top of the mounting chamber, with a lampshade covering the LED light; a fixed shell is located below the lampshade, and a display screen facing the LED light is located inside the fixed shell; a convex lens is located on the bottom surface of the liquid storage chamber facing the display screen.

[0013] The control unit has a PCB main control board, which is installed in the installation chamber. The installation chamber is also equipped with a rechargeable battery, which is electrically connected to the LED lights, the main control unit and the electronic scale components to provide power.

[0014] Both the liquid storage chamber and the weighing shell are equipped with paired spring pins and conductive metal contacts. The conductive metal contacts in the liquid storage chamber are electrically connected to the PCB main control board of the control unit, and the conductive metal contacts in the weighing shell are electrically connected to the weighing sensor. The spring pins on the liquid storage chamber and the weighing shell are connected by wires.

[0015] The outer wall of the liquid storage chamber is equipped with wire grooves to accommodate wires.

[0016] The main structure includes an upper silicone shell and a lower silicone shell; the upper silicone shell covers the weighing shell of the electronic scale assembly, and its top has an upper through hole for the sensor rod to pass through; the lower silicone shell covers the liquid storage chamber, and its bottom has a lower through hole.

[0017] The beneficial effects of this invention are as follows: The multifunctional smart kettlebell of this invention integrates electronic weighing, light projection display, liquid container and digital imaging. It can accurately weigh the liquid in the storage chamber in real time and display the weighing value intuitively through projection. It solves the problems of existing water-filled fitness equipment that cannot know the actual load and multifunctional counterweights that lack data feedback, making it more intelligent and convenient to use.

[0018] The multifunctional intelligent kettlebell of this invention features a compact, stable, aesthetically pleasing, and practical pear-shaped overall structure. The main structure adopts a pear shape, with the electronic scale component and light projection component positioned at opposite ends. This rational layout and stable center of gravity facilitate both gripping and use, while also enhancing the overall aesthetic appeal. It overcomes the shortcomings of flexible water-filled devices, such as easy deformation and instability.

[0019] The multifunctional intelligent kettlebell quick-release snap-fit ​​structure of this invention allows for one-step assembly, disassembly, and sealing. The liquid storage chamber and the weighing shell are circumferentially snapped together by an inlet pipe, a snap-fit ​​protrusion, and an L-shaped groove. Rotation achieves locking and sealing, while reverse rotation allows for quick separation. This facilitates the addition and pouring of liquids to adjust the weight, resulting in high assembly efficiency and reliable sealing, which is superior to traditional threaded tightening and complex flip-top counterweight structures.

[0020] The multifunctional smart kettlebell of this invention is connected by an external wire and a spring pin contact to avoid circuit damage. The spring pin is paired with a conductive metal contact for conduction. The wire is external and stored in the cable tray on the outer wall of the liquid storage chamber, avoiding the messy wiring, squeezing damage and assembly interference problems caused by the internal casing. The circuit connection is stable and reliable, and at the same time, it greatly improves the convenience of disassembly and maintenance.

[0021] The multifunctional smart kettlebell of this invention features a sealed, built-in installation chamber with strong circuit safety protection. The sealed installation chamber inside the liquid storage room centrally arranges electronic components such as the PCB main control board, rechargeable battery, and LED lights, effectively isolating the liquid, preventing moisture-induced short circuits, and improving product lifespan and safety.

[0022] The multifunctional smart kettlebell of this invention features an integrated multifunctional design, making it applicable to a wider range of scenarios. It integrates liquid filling and weight adjustment, accurate weighing, projection display, and quick assembly and disassembly. It can be used as a weight-bearing fitness equipment and can also realize visual weight monitoring. With its simple structure and rich functions, it effectively makes up for the shortcomings of existing equipment in terms of single function and lack of intelligence. Attached image description: Figure 1 This is a schematic diagram of the structure of the multifunctional intelligent kettlebell described in this invention.

[0023] Figure 2 For along Figure 1 A cross-sectional view along line AA.

[0024] Figure 3 This is an exploded structural diagram of the electronic scale components.

[0025] Figure 4 This is an exploded structural diagram of the electronic scale components and the liquid storage chamber.

[0026] Figure 5 This is a schematic diagram of the exploded structure of the liquid storage chamber.

[0027] Explanation of reference numerals in the attached figures: 10. Main structure; 11. Upper silicone shell; 12. Lower silicone shell; 13. Upper through hole; 14. Lower through hole; 21. PCB main control board; 22. Rechargeable battery; 30. Electronic scale assembly; 31. Scale shell; 32. Weighing sensor; 33. Sensor hanging rod; 34. Sensor mounting base; 35. Hanging hole or hook; 36. Through hole; 37. Receiving groove; 38. L-shaped mating groove; 40. Liquid storage chamber; 41. Liquid inlet pipe; 42. Locking protrusion; 43. Mounting chamber; 44. Cable groove; 45. Spring pin; 46. Conductive metal contact; 50. Lighting projection assembly; 51. LED light; 52. Lamp cover; 53. Fixing shell; 54. Display screen; 55. Convex lens. Detailed Implementation

[0028] To make the objectives, technical solutions, and effects of this invention clearer, the invention will be further described below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0029] Refer to Figure 1 and Figure 2A multifunctional smart kettlebell includes: a main structure 10, a main control unit, an electronic scale assembly 30 located on top of the main structure 10, a liquid storage chamber 40 located within the main structure 10, and a light projection assembly 50 located within the liquid storage chamber 40. The electronic scale assembly 30 weighs the liquid contained in the liquid storage chamber 40, and the light projection assembly 50 projects and displays the weighing result. The electronic scale assembly 30, the light projection assembly 50, and the main control unit are connected by signals and electricity. The electronic scale assembly 30 transmits the measured data to the main control unit, and the main control unit controls the light projection assembly 50 to display the measured values.

[0030] Reference Figure 2 and Figure 3 The main structure 10 is pear-shaped, with the electronic scale assembly 30 and the light projection assembly 50 respectively located at opposite ends of the main structure 10. Specifically, the electronic scale assembly 30 includes a scale housing 31, a weighing sensor 32 and a sensor hanging rod 33 disposed within the scale housing 31. A sensor mounting base 34 is fixedly disposed inside the scale housing 31, and the weighing sensor 32 is fixedly mounted on the sensor mounting base 34. One end of the sensor hanging rod 33 is fixed inside the scale housing 31, and the other end extends out of the scale housing 31, with a hanging hole or hook 35 for hanging a multi-functional smart kettlebell.

[0031] The weighing housing 31 adopts a detachable split-shell structure, which is convenient to disassemble and assemble, thus facilitating the removal of the half-shells and the installation of parts such as the sensor mounting base 34, the weighing sensor 32, and the sensor hanging rod 33 inside the weighing housing 31.

[0032] The weighing shell 31 has a pointed top, gradually widening in diameter downwards to form the main body of the shell. A through hole 36 is formed at the top for the sensor hanging rod 33 to pass through.

[0033] Reference Figure 2 and Figure 4The liquid storage chamber 40 is located below the weighing housing 31 and is used to contain liquid. A liquid inlet pipe 41 is provided at the connection between the liquid storage chamber 40 and the electronic scale assembly 30, and a locking protrusion 42 is provided on the side wall of the liquid inlet pipe 41. A receiving groove 37 is provided at the connection between the weighing housing 31 and the liquid storage chamber 40, and an L-shaped mating groove 38 is formed on the groove wall from the groove opening of the receiving groove 37. During assembly, the liquid inlet pipe 41 extends into the receiving groove 37, and the locking protrusion 42 subsequently enters the L-shaped mating groove 38 and slides circumferentially along the groove wall, forming a locking fit with the L-shaped mating groove 38, thereby sealing the liquid storage chamber 40. During disassembly and assembly, rotate the liquid storage chamber 40 or the weighing shell 31 in the reverse direction to make the locking protrusion 42 slide out of the L-shaped mating groove 38, so that the weighing shell 31 can be separated from the liquid storage chamber 40, and then liquid can be added to or poured out into the liquid storage chamber 40 through the liquid inlet pipe 41.

[0034] Reference Figure 2 and Figure 5 A closed mounting chamber 43 protrudes from the bottom of the liquid storage chamber 40 towards the top of the weighing shell 31. A light projection assembly 50 is located in the mounting chamber 43, including an LED light 51 mounted on the top of the mounting chamber 43, with a lampshade 52 surrounding the LED light 51. A fixing shell 53 is located below the lampshade 52, and a display screen 54 facing the LED light 51 is located inside the fixing shell 53. A convex lens 55 is located on the bottom surface of the liquid storage chamber 40 facing the display screen 54. The weighing data from the electronic scale assembly 30 is displayed on the display screen 54 and magnified and projected onto the ground or wall outside the multi-functional smart kettlebell by the LED light 51 and the convex lens 55, allowing the user to intuitively observe the weighing data.

[0035] The main control unit has a PCB main control board 21, which is installed in the installation chamber 43.

[0036] The installation chamber 43 is also equipped with a rechargeable battery 22, which is electrically connected to the LED light 51, the main control unit and the electronic scale assembly 30 to provide power to them.

[0037] Both the liquid storage chamber 40 and the weighing shell 31 are equipped with paired spring pins 45 and conductive metal contacts 46. The conductive metal contacts 46 in the liquid storage chamber 40 are electrically connected to the PCB main control board 21, and the conductive metal contacts 46 in the weighing shell 31 are electrically connected to the weighing sensor 32. The spring pins 45 on the liquid storage chamber 40 and the weighing shell 31 are connected by wires. With this structure, the connecting wires can be arranged externally on the outside of the liquid storage chamber 40 and the weighing shell 31, avoiding problems such as assembly interference, messy wiring, and crushing damage caused by the wires being built into the shell. At the same time, it facilitates disassembly and maintenance, effectively improves assembly efficiency and circuit connection reliability, and makes the overall structure more concise and neat.

[0038] Preferably, the outer wall of the liquid storage chamber 40 is provided with a wire groove 44 to accommodate the wire.

[0039] Preferably, the main structure 10 includes an upper silicone shell 11 and a lower silicone shell 12. The upper silicone shell 11 covers the scale shell 31 and has an upper through hole 13 at its top for the sensor hanging rod 33 to pass through. The lower silicone shell 12 covers the liquid storage chamber 40 and has a lower through hole 14 at its bottom facing the convex lens 55.

[0040] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the invention to these descriptions. For those skilled in the art, the architectural form of this invention can be flexibly varied without departing from its conceptual framework, leading to the derivation of a series of products. Any simple deductions or substitutions should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A multifunctional intelligent kettlebell, characterized in that, include: The system includes a main structure, a main control unit, an electronic scale assembly located at the top of the main structure, a liquid storage chamber located within the main structure, and a light projection assembly located in the liquid storage chamber. The electronic scale assembly weighs the liquid contained in the liquid storage chamber, and the light projection assembly projects and displays the weighing result. The electronic scale assembly, the light projection assembly, and the main control unit are connected by signals and electricity. The electronic scale assembly transmits the measured data to the main control unit, and the main control unit controls the light projection assembly to display the measured values.

2. The multifunctional intelligent kettlebell according to claim 1, characterized in that, The main structure is pear-shaped, and the electronic scale assembly and the light projection assembly are respectively located at opposite ends of the main structure.

3. The multifunctional intelligent kettlebell according to claim 2, characterized in that, The electronic scale assembly includes a scale housing, a weighing sensor and a sensor mounting rod disposed within the scale housing; a sensor mounting base is fixedly disposed within the scale housing, the weighing sensor is fixedly mounted on the sensor mounting base, one end of the sensor mounting rod is fixedly disposed within the scale housing, and the other end extends out of the scale housing, and is provided with a hanging hole or hook.

4. The multifunctional intelligent kettlebell according to claim 3, characterized in that, The top of the scale shell is pointed, and the diameter gradually expands downward from the top to form the main body of the shell; the top is formed with a through hole for the sensor hanging rod to pass through.

5. The multifunctional intelligent kettlebell according to any one of claims 1-4, characterized in that, The electronic scale assembly has a liquid storage chamber located below the scale housing. An inlet pipe is provided at the connection between the liquid storage chamber and the electronic scale assembly, and a locking protrusion is provided on the side wall of the inlet pipe. A receiving groove is provided at the connection between the scale housing and the liquid storage chamber, and an L-shaped mating groove is formed on the groove wall from the groove opening. During assembly, the inlet pipe extends into the receiving groove, and the locking protrusion subsequently enters the L-shaped mating groove and slides circumferentially along the groove wall, forming a locking engagement with the L-shaped mating groove, thereby sealing the liquid storage chamber. During disassembly, the liquid storage chamber or the scale housing is rotated in the opposite direction, causing the locking protrusion to slide out of the L-shaped mating groove, thus separating the scale housing from the liquid storage chamber.

6. The multifunctional intelligent kettlebell according to claim 5, characterized in that, A closed mounting chamber protrudes from the bottom of the liquid storage chamber toward the top of the scale shell within the liquid storage chamber; the light projection assembly is located in the mounting chamber, and includes an LED light located at the top of the mounting chamber, with a lampshade covering the LED light; a fixing shell is located below the lampshade, and a display screen facing the LED light is located inside the fixing shell; a convex lens is located on the bottom surface of the liquid storage chamber facing the display screen.

7. The multifunctional intelligent kettlebell according to claim 6, characterized in that, The main control unit has a PCB main control board, which is installed in the installation chamber; the installation chamber is also equipped with a rechargeable battery, which is electrically connected to the LED light, the main control unit and the electronic scale assembly to supply power to them.

8. The multifunctional intelligent kettlebell according to claim 5, characterized in that, Both the liquid storage chamber and the scale housing are provided with paired spring pins and conductive metal contacts. The conductive metal contacts in the liquid storage chamber are electrically connected to the PCB main control board of the main control unit, and the conductive metal contacts in the scale housing are electrically connected to the weighing sensor. The liquid storage chamber and the spring pins on the scale housing are connected by wires.

9. The multifunctional intelligent kettlebell according to claim 1, characterized in that, The outer wall of the liquid storage chamber is provided with a wire groove to accommodate the wire.

10. The multifunctional intelligent kettlebell according to claim 1, characterized in that, The main structure includes an upper silicone shell and a lower silicone shell; the upper silicone shell covers the scale housing of the electronic scale assembly, and its top end is provided with an upper through hole for the sensor hanging rod to pass through; the lower silicone shell covers the liquid storage chamber, and its bottom end is provided with a lower through hole.

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