A fitness dumbbell with video instruction

Abstract

The present invention relates to the technical field of fitness equipment, and specifically to a fitness dumbbell with video teaching, including a fitness dumbbell with video teaching, comprising a dumbbell rod, a dumbbell head and a counterweight block, wherein dumbbell heads are installed at both ends of the dumbbell rod, and the dumbbell heads are in a group of two, and a counterweight block is installed on the outer side of the dumbbell head, and a display component is installed on the dumbbell head, and one end of the display component is connected to the outer end of the dumbbell head. The display component rotates periodically through an internal display screen, so that the video rotates cyclically along the path of the display screen. The present invention deflects the gravity block inside the dumbbell head following the change of the center of gravity of the dumbbell, and then uses a rotating module to toggle the display screen so that the display angle of the display screen rotates periodically, thereby solving the problem that beginners cannot perform dumbbell fitness training with video follow-up anytime and anywhere.

Description

Technical Field

[0001] The present invention relates to the technical field of fitness equipment, and in particular to a fitness dumbbell with video teaching. Background Art

[0002] Dumbbells are a common piece of fitness equipment, typically consisting of a long or short bar with two weights attached at either end. They are used to strengthen muscles and sculpt the body. One advantage of dumbbells over other fitness equipment is their portability and flexibility, making them suitable for training at home, in the gym, and outdoors.

[0003] Nowadays, more and more women are beginning to pay attention to fitness. Active participation in fitness exercises can not only help them improve their body shape and strengthen their bodies, but also help to improve their self-confidence and positive attitude towards life. Therefore, compact women's fitness dumbbells are more suitable for women's fitness. Since female beginners lack fitness knowledge, they usually follow the corresponding dumbbell exercises by following the video. When doing common dumbbell exercises such as dumbbell curls and some standing dumbbell exercises, beginners usually need to watch the video instruction while doing the exercise training. Usually, the video volume is amplified or the video is projected to ensure that the trainees can follow the video and perform the training correctly.

[0004] However, in daily training, female beginners cannot learn the key points of a certain training movement well, and when following video teaching training, they usually use TV or mobile phones to watch the video. However, since TV is not easy to carry, the trainees cannot exercise anytime and anywhere. It is not convenient for the trainees to free one hand to use the mobile phone during exercise, and exercise usually requires the use of more muscles. Therefore, using mobile phones to watch videos makes it inconvenient for the trainees to devote themselves to training, which in turn makes it impossible for the trainees to perform dumbbell training with video teaching anytime and anywhere.

[0005] In view of the above situation, in order to overcome the above technical problems, the present invention designs a fitness dumbbell with video teaching, which solves the above technical problems. Summary of the Invention

[0006] The technical purpose to be achieved by the present invention is: the present invention provides a fitness dumbbell with video teaching. By installing a display component that can project videos on the circumference of the dumbbell head, the display component uses the periodic sweeping of the display screen caused by the change of the center of gravity of the dumbbell, so that the display screen is always pointed above the dumbbell, thereby ensuring that the trainee can follow the video teaching to perform dumbbell fitness anytime and anywhere.

[0007] In order to achieve the above technical objectives, the present invention provides the following technical solutions:

[0008] The present invention provides a fitness dumbbell with video teaching, including a fitness dumbbell with video teaching, comprising a dumbbell rod, a dumbbell head and a counterweight block, wherein dumbbell heads are installed at both ends of the dumbbell rod, and the dumbbell heads are in a group of two, and the outer side of the dumbbell head is installed with a counterweight block, and further comprising a display component, wherein the display component is installed on the dumbbell head, one end of the display component is connected to the outer end of the dumbbell head, and the other end of the display component is connected to the counterweight block; while the display component provides video teaching to the user through the display screen on the surface, the dumbbell head is lifted to drive the gravity block inside the display component to rotate, and then the display screen inside the display component rotates along the path of the display screen under the periodic toggling of the toggle lever.

[0009] The dumbbell head is a regular hexagon with a unique shape design, which allows it to be easily placed in any direction to ensure stability. This design not only improves the convenience of use, but also strengthens the stability of the dumbbell head, providing a safer and more stable training environment for trainers.

[0010] During training, trainees can learn through the video teaching screen on the display screen. This screen not only provides clear demonstrations, but also allows for corresponding adjustments based on the trainee's actual situation to ensure the accuracy and safety of the training.

[0011] To better meet the needs of different trainees, the position of the display component can be adjusted initially. This design takes into account individual differences and training needs, allowing each trainee to find the training angle and method that best suits them.

[0012] The weight block is designed to point vertically downward, which can drive the display to compensate for the same direction of rotation. This design ensures that the image is always aligned with the trainer's perspective, so that the trainer can obtain the best visual effect regardless of their position or angle.

[0013] The display assembly includes a supporting frame, a display screen, a protective cover, a rotating module, a display screen and a gravity turntable. The supporting frame is installed on the outer shell of the display assembly, a guide slide groove is opened on the inner side of the supporting frame, the display screen is embedded in the supporting frame, the outer end face of the supporting frame is installed with a protective cover, the rotating module is installed on the inner side of the protective cover, three mounting feet are installed in a circular array on the rotating module, at least one display screen is installed on the mounting feet, the display screen is rectangular and the display size is larger than the display size of the display screen, connecting pillars are installed at both ends of the display screen, both ends of the connecting pillars are nested in the guide slide groove, a gravity turntable is also installed behind the rotating module, a gravity block is rotatably installed on the gravity turntable, the gravity block is tear drop-shaped and the center of gravity of the gravity block does not exceed the inner diameter range of the gravity turntable.

[0014] The weight block is teardrop-shaped, with the tail concentrated and weighted, and equipped with a gravity turntable to balance the unbalanced force caused by rotation, thereby improving stability. At the same time, the other parts of the dumbbell head have been lightweighted, and the transmission part is made of lighter plastic. The display size of the display screen is larger than the display size of the display screen to increase the picture size and facilitate viewing for the trainee. However, there is a certain gap between the display screen and the display screen. As the display distance increases, the picture size will decrease, so the display size needs to be adjusted.

[0015] The outer contour of the support frame is a regular hexagon, and positioning grooves perpendicular to the adjacent sides are opened at the top corners of the regular hexagon. Each display screen in the support frame corresponds to a pair of mutually parallel positioning grooves, and positioning magnets are installed in the positioning grooves.

[0016] Two connecting guide rings are installed in the guide chute. The connecting guide rings are in groups of two. The connecting guide rings are stacked up and down in the connecting chute. There is a gap between the upper and lower guide rings. The trigger wires inside the two connecting guide rings are respectively connected to the positive and negative poles of the power supply unit.

[0017] First, the design of the regular hexagonal outer contour and vertical positioning grooves provides a sturdy support structure, which helps ensure the stability and durability of the product. Secondly, the positioning grooves and positioning magnets equipped with the display screen within the supporting frame can effectively ensure the accurate positioning of the display screen, preventing it from shaking or loosening during the connection process, thereby providing a clearer and more stable visual experience. In addition, the connecting guide ring design in the guide groove provides a reliable power transmission channel, which provides stable and reliable power support for internal mechanisms such as the display screen by triggering the connection between the wire and the power supply unit. Overall, these design details complement each other and provide strong guarantees for the stability, positioning accuracy and power transmission efficiency of the product.

[0018] A connecting frame is rotatably installed on the outer side of the rotating module, a protective cover is installed on the upper end of the connecting frame, a plurality of mounting feet are installed in a circular array on the side of the connecting frame, a screen control system is installed in the mounting feet, the upper end of the connecting pillar is a horizontally mounted contact wheel, the lower end of the connecting pillar is a vertically mounted support wheel, and the left and right contact wheels are provided with connecting contacts that are staggered up and down, the upper connecting contact is in contact with the upper connecting guide ring, and the lower connecting contact is in contact with the lower connecting guide ring.

[0019] A guide plate is installed inside the rotation module, and the guide plate is connected to the protective cover through a central connecting shaft. A gravity block is installed at the bottom end of the rotation module, and six U-shaped slide grooves are provided on the guide plate. The U-shaped slide grooves are arranged in a circular array on the guide plate. A power gear is coaxially installed below the guide plate, and the power gear is engaged with a transmission gear at an eccentric position. A drive lever is coaxially installed above the transmission gear, and the front end boss of the drive lever is slidably installed in the U-shaped slide groove.

[0020] According to the above, the rotation module includes components such as a connecting frame, a protective cover, and mounting feet. The connecting frame is mounted on the rotation module by rotating from the outside. A protective cover is installed on the top, and multiple mounting feet are arranged on the side circumference. The screen control system is installed in these mounting feet. In the design of the connecting pillar, a horizontally mounted contact wheel is installed on the top, and a vertically mounted support wheel is equipped on the bottom. The two contact wheels are provided with connecting contacts that are staggered up and down, of which the upper connecting contact is connected to the upper connecting guide ring, and the lower connecting contact is connected to the lower connecting guide ring. This design combination provides a reliable foundation for the stability and functionality of the rotation module, and ensures its smooth rotation and reliable screen control function.

[0021] A limit plate is coaxially and co-frequencyally installed between the guide plate and the power gear; a positioning top plate is coaxially and co-frequencyally installed between the transmission gear and the driving lever, and the positioning top plate is provided with a space groove with a quarter-circle angle, the center of the space groove is aligned with the center position of the driving lever, and the positioning top plate is tangent to the outer contour of the limit plate.

[0022] The limiting plate has a circumferential array of limiting grooves, which are concave arc-shaped and six of which are distributed on the limiting plate. The concave arc surface of the limiting grooves is tangent to the circular outer contour of the positioning top plate.

[0023] A limit plate is coaxially mounted between the guide plate and the power gear, limiting its rotation. A positioning top plate is coaxially mounted between the transmission gear and the drive lever, with a slot defined in the positioning top plate, aligned with the center of the drive lever. The limit plate also features a concave, inferior arc-shaped limit slot, tangential to the positioning top plate, limiting rotation of the transmission gear.

[0024] The limiting plate is provided with a circumferential array of limiting grooves, which are in the shape of an inward-concave minor arc, and six of these arc-shaped circumferential arrays are distributed on the limiting plate. The inward-concave arc surface of these grooves is tangent to the circular outer contour of the positioning top plate. The limiting plate is coaxially and co-frequency-mounted with the power gear to limit the rotation of the guide plate. In addition, a positioning top plate is also coaxially and co-frequency-mounted between the transmission gear and the drive lever. This positioning top plate has a space slot that is aligned with the center of the drive lever. The limiting grooves provided on the limiting plate are in the shape of a concave minor arc and are tangent to the positioning top plate to limit the rotation of the transmission gear.

[0025] A planetary gear mechanism is installed above the gravity block. The planetary gear train inside the planetary gear mechanism is connected to the gravity block through a connecting plate. A fixed gear ring is engaged on the outside of the planetary gear train. A sun gear is engaged in the center of the planetary gear train. A power gear is coaxially installed above the sun gear. The transmission ratio between the planetary gear train and the sun gear inside the planetary gear mechanism is 1:6.

[0026] The fixed gear ring is installed on the inner wall of the dumbbell head. The sun gear is connected to the power gear through the output shaft. The number of gear teeth in the planetary gear system is smaller than that of the sun gear, and the diameter of the power gear is smaller than that of the sun gear.

[0027] Based on the above analysis, the gravity block does not control the rotation of the display screen in real time. The transmission of the gravity block will first be accelerated by the planetary gear mechanism, which will then cause the sun gear to rotate at a faster speed. At this time, driven by the power gear, the transmission gear will also rotate in the opposite direction. Only then will the driving lever rotate. Moreover, the driving lever needs to rotate a full circle before it drives the U-shaped slide groove to slide. As a result, the guide plate intermittently rotates 60 degrees under the drive of the six U-shaped slide grooves. The display screen just rotates to the other adjacent side end face of the regular hexagonal support frame and stays there again for the time it takes for the driving lever to rotate one circle, so that the trainee can watch the video better and more stably.

[0028] If the gravity block is directly connected to the display screen for transmission, the change in the center of gravity of the gravity block will rotate the display screen in real time and the gravity block will shake back and forth. At this time, the display screen will shake back and forth, which will seriously affect the trainee's viewing experience. After the gravity block is accelerated through the planetary gear mechanism, the driving lever obtains a sufficient rotation angle to drive the U-shaped slide groove, and the rotation clearance of the driving lever can make the display screen display stably without being interfered with by the gravity block, thereby improving the display stability of the display component and the reliability of the mechanism transmission.

[0029] This design allows the planetary gear train to transmit power while reducing friction and wear, improving transmission efficiency. Furthermore, because the number of teeth in the planetary gear train is smaller than that of the sun gear, the output power is more uniform and stable. Furthermore, the smaller diameter of the power gear than the sun gear further reduces friction and wear, improving transmission smoothness and reliability. The planetary gear mechanism enables the dumbbells to transmit power more smoothly, reliably, and efficiently, thereby better training the user's muscles. Furthermore, the planetary gear train design makes the dumbbells' weight distribution more even, making them more comfortable to use.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. The present invention uses a gravity block inside the dumbbell head to deflect as the dumbbell's center of gravity changes, and then uses a rotation module to move the display screen so that the display angle of the display screen rotates periodically. The rotation module uses the gravity block and the deflection angle of the display screen to ensure that the display screen always faces the upper inner side of the dumbbell, so that the trainee can better learn and grasp the movement details of the video teaching.

[0032] 2. The present invention solves the problem of small video screens by setting the display area of ​​the display screen larger than the display screen, thereby better balancing the visual difference caused by the gap between the two. The trainees can focus on the clearer projection screen, thereby further improving the trainees' mastery of video teaching.

[0033] 3. The present invention uses the mutual transmission between the planetary gear mechanism and the driving lever. The gravity block accelerates the rotation of the power gear through the planetary gear. At the same time, the driving lever and the U-shaped slide groove are used to rotate periodically, so that the gravity block rotates the display screen periodically, thereby allowing the trainee to watch the video display more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 is a schematic diagram of a display assembly of the present invention;

[0038] Figure 3 is a plan view schematic diagram of a display assembly of the present invention;

[0039] Figure 4 is a schematic diagram of the interior of the display assembly of the present invention;

[0040] Figure 5 This invention Figure 3 The cross-sectional view at AA;

[0041] Figure 6 It is a schematic diagram of the installation relationship of the gravity block of the present invention;

[0042] Figure 7 is a schematic diagram of the rotation module of the present invention;

[0043] Figure 8 This is a schematic diagram of the interior of the rotating module of the present invention;

[0044] Figure 9 Schematic diagram of the planetary gear mechanism of the present invention;

[0045] Figure 10 It is a schematic diagram of the lower end of the rotating module of the present invention.

[0046] Figure: 1. Dumbbell bar; 2. Dumbbell head; 3. Counterweight; 4. Display assembly; 41. Support frame; 411. Guide slot; 412. Positioning slot; 413. Positioning magnet; 414. Connecting guide ring; 42. Display screen; 43. Protective cover; 44. Rotating module; 441. Connecting frame; 442. Mounting foot; 443. Guide plate; 444. Connecting shaft; 445. U-shaped slot; 446. Power gear; 4461. Limit plate ; 4462, limit groove; 447, transmission gear; 4471, positioning top plate; 4472, space slot; 448, driving lever; 45, display screen; 451, connecting pillar; 452, contact wheel; 4521, connecting contact; 453, support wheel; 46, gravity turntable; 461, gravity block; 462, planetary gear mechanism; 4621, connecting plate; 4622, planetary gear system; 4623, fixed gear ring; 4624, sun gear. DETAILED DESCRIPTION

[0047] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0048] like Figures 1 to 10As shown, the present invention provides a fitness dumbbell with video teaching, including a fitness dumbbell with video teaching, including a dumbbell rod 1, a dumbbell head 2 and a counterweight 3, dumbbell heads 2 are installed at both ends of the dumbbell rod 1, the dumbbell heads 2 are in a group of two, and the outer side of the dumbbell head 2 is installed with a counterweight 3, and also includes a display component 4, the dumbbell head 2 is installed with a display component 4, one end of the display component 4 is connected to the outer end of the dumbbell head 2, and the other end of the display component 4 is connected to the counterweight 3; while the display component 4 provides video teaching to the user through the display screen 42 on the surface, the dumbbell head 2 is lifted to drive the gravity block 461 inside the display component 4 to rotate, and then the display screen 45 inside the display component 4 rotates along the path of the display screen 42 under the periodic toggling of the lever.

[0049] The dumbbell head 2 is a regular hexagon, so that when the dumbbell is placed, the six faces of the regular hexagon can be used to place it stably in different directions, thereby preventing the dumbbell from rolling. When the trainee holds the dumbbell and prepares to start training, the trainee practices dumbbell movements through the video teaching screen displayed on the display screen 42 on the dumbbell head 2. If the trainee is not particularly comfortable with the viewing angle of the display screen 42 at the initial position, the trainee can make an initial adjustment by adjusting the installation position of the display screen 45 of the display assembly 4 on the internal mounting foot 442, and adjust the display screen 45 of the display assembly 4 according to his own training habits, viewing angle, and training. The dumbbell head 2 is adjusted according to different exercises. The dumbbell head 2 mainly uses the internal gravity block 461 to always have gravity pointing in the vertical downward direction. Therefore, when the trainee uses the arm to pull the dumbbell head 2 to rotate toward the inside of the wrist, the gravity of the gravity block 461 will also drive the display screen 45 inside the dumbbell head 2 to perform corresponding compensation and rotate in the same direction, thereby ensuring that the image displayed on the display screen 45 is always aligned with the trainee's perspective, ensuring that the trainee focuses on the training movements and the teaching video and corrects each other, thereby improving the trainee's learning and mastery of the teaching video.

[0050] like Figures 2 to 6As shown, the display assembly 4 includes a support frame 41, a display screen 42, a protective cover 43, a rotation module 44, a display screen 45 and a gravity turntable 46. The support frame 41 is installed on the outer shell of the display assembly 4. A guide groove 411 is opened on the inner side of the support frame 41. The display screen 42 is embedded in the support frame 41. The outer end surface of the support frame 41 is installed with a protective cover 43. The inner side of the protective cover 43 is installed with a rotation module 44. Three mounting feet are installed in a circular array on the rotation module 44. 442, at least one display screen 45 is installed on the mounting foot 442, the display screen 45 is rectangular and the display size is larger than the display size of the display screen 42, connecting pillars 451 are installed at both ends of the display screen 45, and both ends of the connecting pillars 451 are nested in the guide slide groove 411, and a gravity turntable 46 is also installed behind the rotating module 44, and a gravity block 461 is rotatably installed on the gravity turntable 46, and the gravity block 461 is teardrop-shaped and the center of gravity of the gravity block 461 does not exceed the inner diameter range of the gravity turntable 46.

[0051] The gravity block 461 is the trigger mechanism and power source for adjusting the entire display assembly 4. Considering that the single design of the gravity block 461 cannot accurately ensure that the deflection of the dumbbell head 2 will accurately drive the movement of the internal mechanism, the gravity block 461 is in the shape of a teardrop. The weight of the tail of the gravity block 461 is concentrated and weighted, and a gravity turntable 46 is installed on the inner side of the gravity block 461 to assist the rotation of the gravity block 461. The gravity turntable 46 balances the unbalanced force brought by the rotation of the gravity block 461, thereby ensuring the stability of the rotation of the gravity block 461. At the same time, the entire The weight of other parts of the dumbbell head 2 is lightweight, and the entire transmission part is made of lighter plastic; the display size of the display screen 45 is larger than the display size of the display screen 42. This is because there is a certain gap between the display screen 45 and the display screen 42. As the display distance of the display screen 45 becomes farther, the picture of the display screen 45 viewed by the trainee will also become smaller. While more pictures of the display screen 45 can be seen, the size of the picture will also become smaller. At this time, by increasing the size of the display screen 45, the trainee can obtain a more comprehensive and clear video teaching picture.

[0052] like Figure 2 and Figure 3 As shown, the outer contour of the supporting frame 41 is a regular hexagon, and the supporting frame 41 is provided with a positioning groove 412 perpendicular to the adjacent side at the top corner position of the regular hexagon. The display screen 45 in the supporting frame 41 corresponds to a pair of mutually parallel positioning grooves 412, and the positioning grooves 412 are installed with positioning magnets 413, and the positioning magnets 413 are used to magnetically position the two ends of the display screen 45.

[0053] The supporting frame 41 supports the internal structure through the outline of a regular hexagon, and at the same time, the six flat display screens 42 can have a better display effect. A positioning groove 412 perpendicular to the adjacent side is opened in the top corner position of the regular hexagon of the supporting frame 41. The positioning groove 412 is the position where the display screen 45 intermittently stays. The display screen 45 is accurately positioned directly below the display screen 42 through the positioning groove 412, and the content of the video teaching is transmitted to the trainee through the screen of the display screen 42. The positioning groove 412 is perpendicular to the adjacent side to ensure that the display screen 45 is directly opposite the bottom of the display screen 42, thereby preventing the display screen 45 from being displayed in the wrong position and affecting the trainee's training effect, further improving the accuracy of the display component 4 for video delivery.

[0054] like Figure 2 and Figure 5 As shown, two connecting guide rings 414 are installed in the guide groove 411. The connecting guide rings 414 are in a group of two. The connecting guide rings 414 are stacked up and down in the connecting groove. There is a gap between the upper and lower guide rings. The trigger wires inside the two connecting guide rings 414 are respectively connected to the positive and negative poles of the power supply unit.

[0055] Two connecting guide rings 414 are installed within the guide slot 411. These connecting guide rings 414 form a pair and are stacked one above the other within the slot. It should be noted that a certain gap should be maintained between the two guide rings. Furthermore, the trigger wires within the connecting guide rings 414 should be connected to the positive and negative terminals of the power supply unit, respectively.

[0056] Two springs can also be provided within the guide slot 411 to provide a guiding force and maintain the stability and smooth sliding of the connecting guide ring 414 within the slot. One end of the spring is fixed to the bottom of the slot, and the other end contacts the connecting guide ring 414, maintaining the connecting guide ring 414 in the correct position through elastic force. In addition, a trigger switch is also provided on the connecting guide ring 414. When the connecting guide ring 414 slides within the slot, the trigger switch contacts the side wall of the slot, thereby triggering the power supply unit to start supplying power. The power supply unit controls the direction and intensity of the current at the positive and negative poles based on the position and direction of the trigger switch, thereby achieving motion control of the connecting guide ring 414.

[0057] Through the above, the connecting guide ring 414 can achieve stable and smooth movement in the guide groove 411, and the movement of the connecting guide ring 414 can be controlled by the power supply unit, thereby achieving the purpose of accurately controlling the movement of the connecting guide ring 414.

[0058] like Figure 5 and Figure 7As shown, a connecting frame 441 is rotatably installed on the outer side of the rotating module 44, a protective cover 43 is installed on the upper end of the connecting frame 441, a plurality of mounting feet 442 are installed in a circular array on the side of the connecting frame 441, a screen control system is installed in the mounting feet 442, the upper end of the connecting pillar 451 is a horizontally mounted contact wheel 452, the lower end of the connecting pillar 451 is a vertically mounted support wheel 453, and the left and right contact wheels 452 are provided with upper and lower staggered connecting contacts 4521, the upper connecting contact 4521 is in contact with the upper connecting guide ring 414, and the lower connecting contact 4521 is in contact with the lower connecting guide ring 414.

[0059] A connecting frame 441 is rotatably mounted on the outside of the rotating module 44. A protective cover 43 is fitted on the top of the connecting frame 441 to prevent the ingress of dust and other impurities. Multiple mounting feet 442 are mounted in a circular array on the side of the connecting frame 441. These mounting feet 442 house the screen control system. The top end of the connecting support 451 is mounted horizontally and equipped with a contact wheel 452, while the bottom end is mounted vertically and equipped with a support wheel 453. The left and right contact wheels 452 are provided with vertically staggered connecting contacts 4521. The top connecting contact 4521 contacts the top connecting guide ring 414, while the bottom connecting contact 4521 contacts the bottom connecting guide ring 414. This design ensures the stability and reliability of the device while providing good contact contact, enabling the screen control system to function better.

[0060] like Figures 4 to 7 As shown, a guide plate 443 is installed inside the rotating module 44, and the guide plate 443 is connected to the protective cover 43 through the central connecting shaft 444. A gravity block 461 is installed at the bottom end of the rotating module 44, and six U-shaped slide grooves 445 are opened on the guide plate 443. The U-shaped slide grooves 445 are arranged in a circular array on the guide plate 443. A power gear 446 is coaxially installed below the guide plate 443, and the power gear 446 is engaged with a transmission gear 447 at an eccentric position. A driving lever 448 is coaxially installed above the transmission gear 447, and the front end boss of the driving lever 448 is slidably installed in the U-shaped slide groove 445.

[0061] As described, the rotation module 44 is internally provided with a guide plate 443, which is connected to the protective cover 43 via a central connecting shaft 444. Furthermore, a gravity block 461 is mounted at the bottom end of the rotation module 44. Six U-shaped chutes 445 are formed on the guide plate 443, arranged in a circular array on the guide plate 443. Furthermore, a power gear 446 is coaxially disposed below the guide plate 443, meshing eccentrically with a transmission gear 447. Furthermore, a drive lever 448 is coaxially mounted above the transmission gear 447, with the front end boss of the drive lever 448 slidingly mounted within the U-shaped chutes 445.

[0062] As described above, the rotation module 44 is internally provided with a guide plate 443, which is tightly connected to the protective cover 43 via a central connecting shaft 444. Furthermore, a weight block 461 is mounted at the bottom end of the rotation module 44 to enhance the module's stability during operation. Six U-shaped slots 445 are arranged in a circular array on the guide plate 443, ensuring smoother module operation. Furthermore, a power gear 446 is coaxially positioned below the guide plate 443. This power gear 446 engages eccentrically with a transmission gear 447, thereby transmitting power to the transmission gear 447. Furthermore, a drive lever 448 is coaxially mounted above the transmission gear 447. The front end boss of the drive lever 448 slides within the U-shaped slot 445, enabling the drive lever 448 to precisely control the module's operation.

[0063] like Figure 7 and Figure 8 As shown, a limit plate 4461 is coaxially and co-frequencyally installed between the guide plate 443 and the power gear 446; a positioning top plate 4471 is coaxially and co-frequencyally installed between the transmission gear 447 and the driving lever 448, and the positioning top plate 4471 is provided with a space groove 4472 at a quarter-circle angle, and the center of the space groove 4472 is aligned with the center position of the driving lever 448, and the positioning top plate 4471 is tangent to the outer contour of the limit plate 4461.

[0064] The guide plate 443 and the power gear 446 are coaxially and synchronously installed with a limit plate 4461; a positioning top plate 4471 is coaxially and synchronously installed between the transmission gear 447 and the driving lever 448, and the positioning top plate 4471 is provided with a space groove 4472 with a quarter-circle angle, and the center of the space groove 4472 is completely aligned with the center position of the driving lever 448. In addition, the outer contour of the positioning top plate 4471 is completely tangent to the limit plate 4461.

[0065] The guide plate 443 and power gear 446 are coaxially mounted on a limit plate 4461. This limit plate 4461 plays a crucial role in the transmission system, limiting the range of movement of the guide plate 443 and power gear 446, ensuring transmission stability and accuracy. It also ensures that the relative position between the guide plate 443 and power gear 446 remains constant, guaranteeing the proper operation of the entire transmission system.

[0066] A positioning plate 4471 is coaxially mounted between the transmission gear 447 and the drive lever 448, in a co-axial, co-rotating arrangement. This plate 4471 defines a slot 4472 extending a quarter of its circumference. The center of this slot 4472 is perfectly aligned with the center of the drive lever 448, ensuring the precise relative positioning of the transmission gear 447 and the drive lever 448. This design prevents misalignment and errors during transmission, ensuring stable and accurate transmission.

[0067] Furthermore, the contour of the positioning top plate 4471 is perfectly tangent to the limiting plate 4461. This design ensures smooth contact between the positioning top plate 4471 and the limiting plate 4461 during transmission, avoiding significant friction or resistance. This not only improves transmission efficiency but also extends the service life of the transmission system. This design also enhances the overall system's seismic resistance, reducing the impact of vibration on transmission.

[0068] like Figure 8 As shown, a limiting groove 4462 is provided in a circular array on the limiting plate 4461. The limiting groove 4462 is a concave inferior arc and six such arc-shaped circular arrays are distributed on the limiting plate 4461. The concave arc surface of the limiting groove 4462 is tangent to the circular outer contour of the positioning top plate 4471.

[0069] The limiting plate 4461 is provided with a circumferential array of limiting grooves 4462. These limiting grooves 4462 exhibit an inwardly concave inferior arc shape, thereby achieving better sliding contact and positioning with the positioning top plate 4471. Six such arc-shaped circular arrays are distributed on the limiting plate 4461. When the limiting plate 4461 rotates, the inwardly concave arc surface of the limiting grooves 4462 becomes tangent to the circular outer contour of the positioning top plate 4471.

[0070] like Figures 8 to 10As shown, a planetary gear mechanism 462 is installed above the gravity block 461. The planetary gear train 4622 in the planetary gear mechanism 462 is connected to the gravity block 461 through a connecting plate 4621. A fixed gear ring 4623 is engaged with the outer side of the planetary gear train 4622. A sun gear 4624 is engaged with the center of the planetary gear train 4622. A power gear 446 is coaxially installed above the sun gear 4624. The transmission ratio between the planetary gear train 4622 and the sun gear 4624 inside the planetary gear mechanism 462 is 1:6.

[0071] The planetary gear mechanism 462 amplifies and transmits the power of the gravity block 461 through a transmission ratio of 1:6, so that the power gear 446 above the planetary gear mechanism 462 rotates at a faster speed. When the gravity block 461 rotates exactly sixty degrees, that is, the dumbbell head 2 is lifted so that it twists one face of the regular hexagon along the trainee's arm swing, the power gear 446 will quickly rotate a full circle, and drive the guide plate 443 to rotate the corresponding sixty degrees and stay for a full circle by driving the lever 448.

[0072] like Figure 5 and Figure 10 As shown, the fixed gear ring 4623 is installed on the inner wall of the dumbbell head 2, and the sun gear 4624 is connected to the power gear 446 through the output shaft. The number of gear teeth in the planetary gear system 4622 is smaller than the number of teeth of the sun gear 4624, and the diameter of the power gear 446 is smaller than the diameter of the sun gear 4624.

[0073] The fixed gear ring 4623 is mounted on the inner wall of the dumbbell head 2 and is used to mesh with the sun gear 4624 to transmit power to the planetary gear train 4622. The sun gear 4624 is connected to the power gear 446 via an output shaft. The number of teeth on the gears in the planetary gear train 4622 is smaller than that on the sun gear 4624, and the diameter of the power gear 446 is smaller than that of the sun gear 4624. This achieves a larger transmission torque, making the power transmission more reliable and stable.

[0074] During operation of the present invention, the trainee holds the dumbbell bar 1 and ensures that the display screen 45 in the display screen 42 on the dumbbell head 2 is facing his or her viewing angle. The trainee can change the initial display viewing angle of the display screen 45 by changing the initial position of the display screen 45 installed on the mounting foot 442. The trainee ensures that the viewing angle is facing the display screen 45 inside the display screen 42. At this time, the trainee starts to lift the dumbbells, and the arm force drives the dumbbell bar 1 to move upward, and the dumbbell head 2 also changes its center of gravity. The gravity block 461 inside the dumbbell head 2 rotates along the trainee's arm swing trajectory. The rotation of the gravity block 461 drives the gravity turntable 46 to rotate and causes the connecting plate 4621 to rotate through the output shaft. The rotation of the connecting plate 4621 drives the multiple planetary gear trains 4622 to rotate in the same direction.

[0075] At this time, the outer fixed gear ring 4623 is fixed, so that the inner planetary gear system 4622 rotates and drives the central sun gear 4624 to rotate. The rotation of the sun gear 4624 causes the coaxial and co-frequency mounted power gear 446 to rotate, and the power gear 446 meshes with the transmission gear 447. At this time, the transmission gear 447 rotates in the opposite direction, and the driving lever 448 on the transmission gear 447 rotates, thereby driving the protruding column at the front end of the driving lever 448 to slide into the U-shaped groove 445 on the guide plate 443, and the driving lever 448 squeezes the inner wall of the U-shaped groove 445, thereby driving the guide plate 443 to move in the opposite direction again, so that the guide plate 443 and the gravity block 461 deflect in the same direction. At the same time, the limiting plate 4461 below the guide plate 443 and the positioning top plate 4471 perform tangential motion, that is, the positioning top plate 4471 and the limiting groove 4462 slide and rotate tangentially with each other;

[0076] Then, the rotation of the guide plate 443 will drive the protective cover 43 to rotate through the connecting shaft 444. The rotation of the protective cover 43 will cause the outer connecting frame 441 to drive the display screen 45 on the mounting foot 442 to rotate at the same angle. Since the transmission ratio of the planetary gear mechanism 462 is 1:6, the rotation of the gravity block 461 by sixty degrees will cause the driving lever 448 to rotate one circle, thereby driving the U-shaped slide 445 of the guide plate 443. The U-shaped slide 445 drives the guide plate 443 to rotate under the quick sweep of the driving lever 448, thereby causing the connecting frame 441 to rotate.

[0077] Although the present disclosure has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made based on the embodiments of the present disclosure. Therefore, such modifications or improvements, as long as they do not depart from the spirit of the present disclosure, are within the scope of protection claimed by the present disclosure.

Claims

1. A fitness dumbbell with video teaching, comprising a dumbbell bar (1), a dumbbell head (2) and a counterweight (3), wherein dumbbell heads (2) are installed at both ends of the dumbbell bar (1), the dumbbell heads (2) are arranged in groups of two, and a counterweight (3) is installed on the outside of the dumbbell heads (2), characterized in that: It also includes a display component (4), the display component (4) is installed on the dumbbell head (2), one end of the display component (4) is connected to the outer end of the dumbbell head (2), and the other end of the display component (4) is connected to the counterweight (3); The display assembly (4) comprises a supporting frame (41), a display screen (42), a protective cover (43), a rotation module (44), a display screen (45) and a gravity turntable (46). The supporting frame (41) is mounted on the outer shell of the display assembly (4). A guide slot (411) is provided on the inner side of the supporting frame (41). The display screen (42) is embedded in the supporting frame (41). The outer end surface of the supporting frame (41) is mounted with a protective cover (43). The inner side of the protective cover (43) is mounted with a rotation module (44). Three mounting feet are mounted in a circumferential array on the rotation module (44). (442), at least one display screen (45) is mounted on the mounting foot (442), the display screen (45) is rectangular and has a display size larger than the display size of the display screen (42), connecting pillars (451) are mounted at both ends of the display screen (45), both ends of the connecting pillars (451) are nested in the guide chute (411), a gravity turntable (46) is further mounted behind the rotating module (44), a gravity block (461) is rotatably mounted on the gravity turntable (46), the gravity block (461) is teardrop-shaped and the center of gravity of the gravity block (461) does not exceed the inner diameter range of the gravity turntable (46); A guide plate (443) is installed inside the rotation module (44), and the guide plate (443) is connected to the protective cover (43) through a central connecting shaft (444). A gravity block (461) is installed at the bottom end of the rotation module (44). Six U-shaped slide grooves (445) are opened on the guide plate (443). The U-shaped slide grooves (445) are arranged in a circular array on the guide plate (443). A power gear (446) is installed coaxially below the guide plate (443). The power gear (446) is engaged with a transmission gear at an eccentric position. Gear (447), a driving lever (448) is coaxially mounted above the transmission gear (447), and a front end boss of the driving lever (448) is slidably mounted in a U-shaped slide groove (445). When the display component (4) provides video teaching to the user through the display screen (42) on the surface, the dumbbell head (2) is lifted to drive the gravity block (461) inside the display component (4) to rotate, and then the display screen (45) inside the display component (4) rotates along the path of the display screen (42) under the periodic toggling of the driving lever (448).

2. The fitness dumbbell with video teaching according to claim 1, characterized in that: The supporting frame (41) has an outer contour of a regular hexagon, and a positioning groove (412) perpendicular to the adjacent side is opened in the top corner position of the regular hexagon. The display screen (45) in the supporting frame (41) corresponds to a pair of mutually parallel positioning grooves (412), and a positioning magnet (413) is installed in the positioning groove (412).

3. The fitness dumbbell with video teaching according to claim 1, characterized in that: Two connecting guide rings (414) are installed in the guide chute (411). The connecting guide rings (414) are arranged in a group of two. The connecting guide rings (414) are stacked up and down in the connecting chute, with a gap between the upper and lower guide rings. The trigger wires inside the two connecting guide rings (414) are respectively connected to the positive and negative poles of the power supply unit.

4. The fitness dumbbell with video instruction according to claim 1, characterized in that: A connecting frame (441) is rotatably mounted on the outer side of the rotating module (44), a protective cover (43) is mounted on the upper end of the connecting frame (441), a plurality of mounting feet (442) are mounted in a circumferential array on the side of the connecting frame (441), a screen control system is mounted in the mounting feet (442), the upper end of the connecting pillar (451) is a horizontally mounted contact wheel (452), the lower end of the connecting pillar (451) is a vertically mounted support wheel (453), and the left and right contact wheels (452) are provided with upper and lower staggered connecting contacts (4521), the upper connecting contact (4521) contacts the upper connecting guide ring (414), and the lower connecting contact (4521) contacts the lower connecting guide ring (414).

5. The fitness dumbbell with video teaching according to claim 1, characterized in that: A limiting disk (4461) is coaxially and co-frequency mounted between the guide disk (443) and the power gear (446); a positioning top disk (4471) is coaxially and co-frequency mounted between the transmission gear (447) and the driving lever (448); the positioning top disk (4471) is provided with a space groove (4472) having a quarter circumference angle, the center of the space groove (4472) being aligned with the center position of the driving lever (448), and the outer contours of the positioning top disk (4471) and the limiting disk (4461) are tangent.

6. The fitness dumbbell with video instruction according to claim 5, characterized in that: The limiting plate (4461) is provided with a circumferential array of limiting grooves (4462), the limiting grooves (4462) are concave inferior arcs and six arc-shaped circumferential arrays are distributed on the limiting plate (4461), and the concave arc surface of the limiting grooves (4462) is tangent to the circular outer contour of the positioning top plate (4471).

7. The fitness dumbbell with video instruction according to claim 1, characterized in that: A planetary gear mechanism (462) is installed above the gravity block (461). A planetary gear train (4622) in the planetary gear mechanism (462) is connected to the gravity block (461) via a connecting plate (4621). A fixed gear ring (4623) is meshed on the outside of the planetary gear train (4622). A sun gear (4624) is meshed in the center of the planetary gear train (4622). A power gear (446) is coaxially installed above the sun gear (4624). The transmission ratio between the planetary gear train (4622) and the sun gear (4624) in the planetary gear mechanism (462) is 1:

6.

8. The fitness dumbbell with video instruction according to claim 7, characterized in that: The fixed gear ring (4623) is mounted on the inner wall of the dumbbell head (2). The sun gear (4624) is connected to the power gear (446) via an output shaft. The number of teeth of the gears in the planetary gear train (4622) is smaller than that of the sun gear (4624). The diameter of the power gear (446) is smaller than that of the sun gear (4624).

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