An intelligent monitoring dumbbell for body-building exercise

Abstract

The present application relates to the technical field of sports dumbbell, in particular to a kind of dumbbell of intelligent monitoring type of body-building action, including dumbbell piece, threaded rod, range finder, power, signal light, the dumbbell piece is installed on threaded rod, the threaded rod is connected with connecting plate, the range finder is installed below balance plate, the power is installed below the balance plate of another side, the signal light is installed at the top of balance plate, it is characterized by further including adjusting mechanism, the adjusting mechanism two sides are connected with threaded rod, after exerciser extrudes protective sleeve, protective sleeve drives the movement of both sides of curved rod to both ends, the both ends of curved rod drive slider movement, slider movement extrudes connecting plate and is connected with power, current reaches the balance plate of another side by curved rod, and range finder at the bottom of balance plate measures arm height from ground;By setting adjusting mechanism, when dumbbell is in flat lifting, adjusting mechanism measures the height of arm lifting by controlling the height of range finder from ground, so as to monitor the height change of arm when dumbbell is in flat lifting.

Description

Technical Field

[0001] This invention relates to the field of exercise dumbbell technology, specifically to a dumbbell with intelligent monitoring of fitness movements. Background Technology

[0002] In daily life, besides diet, appropriate exercise is beneficial to health. When space is limited but you still want to exercise, dumbbells are undoubtedly a good choice. Dumbbells primarily use their own weight to stimulate arm muscles through arm bending, and different exercises can work different muscles. In recent years, with the increasing demand for fitness, various fitness products have sprung up, including smart dumbbells. Compared to traditional dumbbells, smart dumbbells are equipped with a smart module. This module monitors the dumbbell's movement path, allowing for more targeted and enjoyable exercise.

[0003] Existing smart dumbbells monitor exercise movements by tracking the dumbbell's trajectory using a smart module. However, this means that smart dumbbells cannot accurately monitor the details of the exerciser's movements, leading to improper form. Over time, this not only affects the quality of exercise but can also cause muscle strains, especially for beginners who are unfamiliar with proper form. One of the most common mistakes beginners make when using dumbbells is the dumbbell raise. This movement requires the arms to be parallel to the ground to better engage the back muscles, but as the arms tire, beginners often don't realize they haven't raised their arms high enough.

[0004] In view of the above, in order to overcome the above technical problems, the present invention designs a dumbbell with intelligent monitoring of fitness movements, which solves the above technical problems. Summary of the Invention

[0005] The technical objective of this invention is to address the difficulty in monitoring the accuracy of arm movements during exercise with smart dumbbells. Beginners often experience arm fatigue, leading to a reduction in arm height and incorrect form when performing dumbbell raises. This invention provides a reminder to exercisers.

[0006] To achieve the above-mentioned technical objectives, the present invention provides the following technical solution: A smart dumbbell for monitoring fitness movements includes dumbbell plates, a threaded rod, a rangefinder, a power supply, and a signal light. The dumbbell plates are mounted on the threaded rod, which is connected to a connecting plate. The rangefinder is mounted below a balance plate, and the power supply is mounted below the balance plate on the other side. The signal light is mounted on the top of the balance plate. The dumbbell also includes an adjustment mechanism connected to the threaded rod on both sides. When the user squeezes a protective sleeve, the sleeve moves the curved rod to both ends, causing sliders to move. The sliders then press the connecting plate, connecting to the power supply. Current flows through the curved rod to the balance plate on the other side. The rangefinder at the bottom of the balance plate measures the height of the arm off the ground.

[0007] The adjustment mechanism includes a protective sleeve, a handle, a crank, a slider, a connecting plate, a rotary rod, a balance plate, a clamping plate, and a vibration block. The protective sleeve, made of rubber, is installed on the outer surface of the handle to allow the crank to retract into the handle under hand grip. The crank is installed on the inner wall of the handle, and sliders are rotatably installed at both ends of the crank. One end of the connecting plate is connected to the handle, and the other end is connected to a threaded rod. The rotary rod is installed inside the connecting plate. The balance plate is rotatably installed on the threaded rod, which has protrusions to prevent displacement of the balance plate. The balance plate is connected to the connecting plate via the rotary rod. The clamping plate is fixedly installed inside the balance plate. The vibration block is located inside the balance plate, with one end fixedly connected to the balance plate and the other end slidably connected to the clamping plate.

[0008] The athlete squeezes the crank by gripping the handle. The squeezed crank pushes the slider to connect with both ends, allowing the balance plate on the other side of the power supply to receive current. This enables the rangefinder inside the balance plate to work properly. The rangefinder then measures and terminates the measurement by pushing the clamp plate up and down with the vibration block.

[0009] The handle has an olive-shaped structure, which ensures that the user always grips the middle of the handle when grabbing. Multiple limiting grooves are arranged in a circular array on the outer surface of the handle, and sliding grooves are provided at the lower part of both ends of the limiting grooves.

[0010] After the crank is compressed and bent, the olive-shaped structure of the handle determines the degree of bending of the crank, reduces the resistance when the crank is bent, protects the crank from bending, and increases the service life of the crank.

[0011] The crank is made of an elastic material and is arched when not under stress. The elastic material allows the crank to recover its shape after bending. Guide grooves are provided at both ends of the crank, and the top of the guide grooves is not smoothly connected to the crank. Connecting blocks are provided at both ends of the crank, and through holes are provided on the side of the connecting blocks.

[0012] When the top of the crank is displaced to be level with the top of the handle, the sliding blocks at both ends of the crank slide into contact with the connecting plate, so that the current in the connecting plate can be connected to the connecting plates on both sides of the handle through the crank.

[0013] The top of the slider is an arc surface, which is smoothly connected to the crank rod. A first guide head is installed at the front end of the slider. A connecting groove that passes through the slider is opened above the slider. A wire groove is opened at the upper part of the rear end of the slider for installing wires. Slide plates are provided on both sides of the lower part of the slider. The slide plates are connected to the sliding groove opened on the handle, so that the slider will not deviate during the sliding process and is not easy to get stuck.

[0014] The curved surface structure at the top of the slider is smoothly connected to the crank, preventing the slider and crank from rubbing against the protective sleeve during movement, thus improving the safety of the slider during movement.

[0015] The bottom of the connecting plate has a groove, and the bottom of the groove is connected to the compression block by a spring. The connecting plate has an annular sliding cavity inside, and the top of the sliding cavity is connected to the outside, so that the rotary rod can be connected to the balance plate when rotating. An annular slide rail is installed inside the sliding cavity. The annular slide rail provides direction for the rotation of the rotary rod, so that the rotary rod is not easy to slip off during rotation. The slide rail does not contact the connecting plate at the top and bottom, and the inner wall of the slide rail does not directly contact the connecting plate.

[0016] The rotary rod can rotate in the sliding cavity, so that no matter how the balance plate rotates, the current can enter the connecting plate through the rotary rod, and the contact between the pressing block and the sliding block allows the current to enter the slider.

[0017] Both the outer and inner circumferential surfaces of the rotary rod are arc surfaces, coaxial with the connecting plate. The bottom of the end of the rotary rod away from the balance plate is also arc surface. A second guide head is installed at the end of the rotary rod away from the balance plate. The top of the second guide head is arc surface. A limit block is installed at the other end of the lower part of the rotary rod. The limit block has a groove and is slidably connected to the push block by a spring. The push block has a groove, and one side of the limit block is located inside the push block. The limit block being located inside the push block allows the push block to rotate together with the rotary rod when it rotates, so that the push block continuously pushes the rotary rod.

[0018] The slewing rod is compressed by the spring, ensuring that the second guide head is always located within the slide rail of the connecting plate. Furthermore, the arc surface at the bottom of the slewing rod reduces the frictional force when the slewing rod rotates in the connecting plate, thereby reducing the resistance when the balance plate connected to the slewing rod rotates.

[0019] The balance plate consists of two circles joined vertically, with the lower circular structure weighing significantly more than the upper circular structure. Alternatively, it could be any other structure with varying weights around its axis. This ensures that the rangefinder at the bottom of the balance plate remains perpendicular to the ground. A through hole is provided on the axis where the two circles meet. A fixing groove is provided on the top surface of the balance plate, which is slidably connected to the rotating rod. An observation hole is provided at the bottom apex of the balance plate. A fixing plate is provided on the inner wall of one side of the balance plate, and a rectangular protrusion is provided in the middle of the fixing plate.

[0020] The weight at the bottom of the balance board is much greater than the weight at the top, ensuring that the rangefinder at the bottom apex of the balance board remains perpendicular to the ground during dumbbell exercises.

[0021] The clamping plate has symmetrical grooves at both ends. A lifting plate is slidably installed in the upper groove of the clamping plate. The lifting plate has a concave structure. A pressure plate is slidably installed in the lower groove of the clamping plate. The pressure plate also has a concave structure. The pressure plate is located inside the lifting plate and does not contact the lifting plate. This avoids collisions between the pressure plate and the lifting plate during movement. A transmission plate is installed in the gap between the pressure plate and the lower part of the lifting plate. The transmission plate is fixedly installed on the balance plate. Under normal conditions, the transmission plate does not contact the pressure plate and the lifting plate.

[0022] The current in the clamping plate is obtained from the rotating rod through the wire, and the clamping plate supplies the current to the pressure plate and the lifting plate. When the pressure plate and the lifting plate move, the current is supplied to the transmission plate, which in turn supplies power to the rangefinder.

[0023] The vibrating block has a spherical structure in the middle and cylindrical structures at both ends. The vibrating block is hollow inside. The axis of the vibrating block is perpendicular to the end face of the balance plate. The angle between the apex of the spherical structure and the connection point of the cylindrical structure and the horizontal ground is 30°. The 30° angle setting prevents motion errors and avoids the ball bearings from being constantly triggered. A sensing plate is installed on one side of the cylindrical structure. The ball bearings are installed inside the circular structure. A swing rod is installed on the outer surface of the vibrating block. The swing rod is made of elastic material. One end of the swing rod is fixedly connected to the fixed plate, and the end face of the swing rod faces upward.

[0024] The ball bearings in the vibrating block are used to measure the degree of tilt of the dumbbell in the horizontal direction, while the balance plate keeps the vibrating block always vertical.

[0025] The beneficial effects of this invention are as follows: 1. This invention solves the problem that beginners often experience reduced arm height when performing dumbbell raises due to arm fatigue, a problem that is not easily noticed by the beginners themselves. By setting up an adjustment mechanism, the balance board drives the rangefinder to always be perpendicular to the ground, and the vibration block and clamp plate are used to switch the rangefinder on and off, so that the rangefinder can measure the height of the arm off the ground after the arm stops.

[0026] 2. This invention solves the problem that when fitness enthusiasts use dumbbells, they unconsciously loosen their grip, which can easily cause the dumbbells to slip and endanger safety. By setting up a curved bar, the power supply is connected to both sides, so that current will only flow through the balance plate after the curved bar is fully pressed down.

[0027] 3. This invention solves the problem of uneven weight distribution on both sides of the wrist during exercise due to the hand not being held in the middle of the handle when gripping the dumbbell, which can easily cause the dumbbell to flip and injure the wrist. By setting the handle to an olive shape, it ensures that the palm is always in the middle of the handle when gripping the dumbbell. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] The above and other aspects of the invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the adjustment mechanism of the present invention; Figure 3 This is a schematic diagram showing the positional relationship between the clamping plate and the vibrating block in this invention; Figure 4 This is a schematic diagram of the handle structure of the present invention; Figure 5 This is a schematic diagram of the crank structure of the present invention; Figure 6 This is a schematic diagram of the slider structure of the present invention; Figure 7 This is a cross-sectional view of the connecting plate of the present invention; Figure 8 This is a cross-sectional view of the rotary rod of the present invention; Figure 9 This is a cross-sectional view of the balance plate of the present invention; Figure 10 This is a schematic diagram of the clamping plate structure of the present invention; Figure 11 This is a cross-sectional view of the vibration block of the present invention.

[0030] In the diagram: 1. Dumbbell plate; 2. Threaded rod; 3. Rangefinder; 4. Power supply; 5. Signal light; 6. Adjustment mechanism; 61. Protective sleeve; 62. Handle; 621. Limiting groove; 622. Sliding groove; 63. Crank rod; 631. Guide groove; 632. Connecting block; 64. Slider; 641. First guide head; 642. Connecting groove; 643. Wire groove; 644. Slide plate; 65. Connecting plate; 651. Power supply groove; 652. Extrusion block; 653. Sliding cavity; 654. Slide rail; 66. Rotary rod; 661. Second guide head; 662. Limiting block; 663. Push block; 67. Balance plate; 671. Fixing groove; 672. Observation hole; 673. Fixing plate; 68. Clamping plate; 681. Lifting plate; 682. Pressure plate; 683. Transmission plate; 69. Vibration block; 691. Sensing plate; 692. Ball bearing; 693. Swing rod. Detailed Implementation

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figures 1 to 11 As shown, a smart dumbbell for monitoring fitness movements includes dumbbell plates 1, a threaded rod 2, a rangefinder 3, a power supply 4, and a signal light 5. The dumbbell plates 1 are mounted on the threaded rod 2, which is connected to a connecting plate 65. The rangefinder 3 is mounted below a balance plate 67, and the power supply 4 is mounted below the balance plate 67 on the other side. The signal light 5 is mounted at the top of the balance plate 67. The dumbbell also includes an adjustment mechanism 6, which is connected to the threaded rod 2 on both sides. When the user squeezes the protective sleeve 61, the sleeve 61 causes the curved rod 63 to move to both ends. The curved rod 63 then causes the sliders 64 to move. After the sliders 64 move, they squeeze the connecting plate 65, connecting to the power supply 4. Current flows through the curved rod 63 to the balance plate 67 on the other side. A vibrating block 69 located in the balance plate 67 pushes a clamping plate 68, causing the clamping plate 68 to lift. After the clamping plate 68 is lifted, current flows through the lifted clamping plate 68 into the rangefinder 3.

[0033] like Figures 2 to 11As shown, the adjustment mechanism 6 includes a protective sleeve 61, a handle 62, a crank 63, a slider 64, a connecting plate 65, a rotary rod 66, a balance plate 67, a clamping plate 68, and a vibration block 69. The protective sleeve 61 is installed on the outer surface of the handle 62. Multiple cranks 63 are arranged in a circumferential array along the axis on the inner wall of the handle 62. Slider 64 is rotatably installed at both ends of the cranks 63. The cooperation between the cranks 63 and the sliders 64 makes the cranks 63 a pressure switch. One end of the connecting plate 65 is connected to the handle 62, and the other end of the connecting plate 65 is connected to a screw. The threaded rod 2 is connected to the rotating rod 66, which is slidably installed inside the connecting plate 65. The balance plate 67 is rotatably installed on the threaded rod 2, and the balance plate 67 is connected to the connecting plate 65 through the rotating rod 66. The clamping plate 68 is fixedly installed inside the balance plate 67. The vibration block 69 is located inside the balance plate 67, with one end fixedly connected to the balance plate 67 through the fixing plate 673, and the other end slidably connected to the clamping plate 68. The vibration block 69 does not contact the balance plate 67, so that the vibration block 69 is not affected by the balance plate 67 during the movement.

[0034] When the crank 63 is pressed down so that the sliders 64 at both ends of the crank 63 contact the connecting plates 65 on both sides, the power supply 4 connects the two ends through the crank 63. During the dumbbell's movement, the center of gravity of the balance plate 67 remains unchanged, and the rangefinder 3 located at the bottom of the balance plate 67 remains perpendicular to the ground. Furthermore, the cooperation between the clamp 68 inside the balance plate 67 and the vibration block 69 allows the vibration block 69 to use inertia to switch the rangefinder 3 on and off and record values. Compared with existing smart dumbbells, it is more accurate in monitoring the height of the raised arm.

[0035] like Figure 2 and Figure 4 As shown, the handle 62 has an olive-shaped structure. This olive-shaped structure allows the curved bar 63 to maintain a certain curvature after being squeezed, which helps the curved bar 63 to contract. When the user grips it, they can hold it in the middle of the handle 62, making the weight of the handle 62 even on both sides, preventing the dumbbell from tipping over and protecting the wrist. Multiple limiting grooves 621 are arranged in a circular array along the axial direction on the outer surface of the handle 62. The curved bar 63 is slidably installed in the limiting grooves 621. The multiple limiting grooves 621 ensure that the user can only press down the curved bar 63 completely by completely wrapping the handle 62, thereby correcting the user's grip posture and improving the safety of the dumbbell. Sliding grooves 622 are provided at the lower part of both ends of the limiting grooves 621.

[0036] While holding the handle 62, the palm squeezes the crank 63 to move the apex of the crank 63 into the limiting groove 621. When the apex of the crank 63 is aligned with the apex of the limiting groove 621, the crank 63 stops moving. Compared with the existing handle 62, the olive-shaped handle is less prone to slipping and is easier to grip.

[0037] like Figure 2and Figure 5 As shown, the crank 63 is made of an elastic material, which allows the crank 63 to return to its original posture after being deformed by force. The crank 63 is arched when not under force. Under normal conditions, the arched shape of the crank 63 allows both ends of the crank 63 to contract towards the center when it recovers, thereby causing the sliders 64 at both ends of the crank 63 to contract and de-energize the crank 63. Guide grooves 631 are provided at both ends of the crank 63. The top of the guide groove 631 is not smoothly connected to the crank 63, which increases the contact area between the top of the guide groove 631 and the wire when the wire passes through the guide groove 631, preventing damage to the wire. Connecting blocks 632 are provided at both ends of the crank, and through holes are provided on the side of the connecting blocks 632.

[0038] When the crank 63 is compressed and moves downward, both ends of the crank 63 extend to the sides, and at the same time, the crank 63 drives the slider 64 to move to the sides. When the force on the crank 63 disappears, the crank 63 retracts and drives the sliders 64 at both ends of the crank 63 to move closer to the middle of the crank 63. Compared with the button type used in existing dumbbells, the crank 63 of the present invention automatically cuts off the power when the handle 62 is released and automatically turns on the power when the handle 62 is gripped, which is more convenient.

[0039] like Figure 2 and Figure 6 As shown, the top of the slider 64 is an arc surface, which is smoothly connected to the crank rod 63. When the slider 64 moves, it reduces friction with the protective sleeve 61, preventing the slider 64 from getting stuck when it retracts, thus preventing the crank rod 63 from retracting and consequently preventing the crank rod 63 from being de-energized. A first guide head 641 is installed at the front end of the slider 64. A connecting groove 642 is provided above the slider 64, which is rotatably connected to the connecting block 632. A wire groove 643 is provided at the upper part of the rear end of the slider 64, in which a wire is installed. Slide plates 644 are provided on both sides of the lower part of the slider 64, and the slide plates 644 are slidably connected to the sliding groove 622.

[0040] Slider 64 moves along the sliding groove 622 under the drive of crank 63. When crank 63 extends, the first guide head 641 at the front end of slider 64 enters the energized groove 651 and pushes the extrusion block 652. The extrusion block 652 is tightly connected to slider 64 under the push of spring. When crank 63 retracts, slider 64 moves towards the center of crank 63 along the sliding groove 622 under the drive of crank 63.

[0041] like Figure 2 and Figure 7As shown, the bottom of the connecting plate 65 has multiple energized grooves 651 arranged in a circular array along the axis. The energized grooves 651 are opposite to the first guide head 641, and the diameter of the energized grooves 651 is larger than the diameter of the first guide head 641. This allows the first guide head 641 to extend into the energized grooves 651 when the slider 64 moves, thereby making the connection between the first guide head 641 and the extrusion block 652 tighter. The bottom of the energized grooves 651 is connected to the extrusion block 652 by a spring. The connecting plate 65 has an annular sliding cavity 653 inside. The top of the annular sliding cavity 653 is connected to the outside. An annular slide rail 654 is installed inside the sliding cavity 653. The slide rail 654 does not contact the connecting plate 65 at the top and bottom, making the slide rail 654 smaller and thus reducing the resistance of the slide rail 654. The inner wall of the slide rail 654 does not directly contact the inner wall of the connecting plate 65.

[0042] The connecting plate 65 on the side closer to the power source 4 receives current through the rotating rod 66. At the same time, the connecting plate 65 transmits the current to the slider 64 through the pressing block 652. The slider 64 transmits the current out through the wire behind the wire groove 643. The connecting plate 65 on the side closer to the rangefinder 3 receives current from the slider 64 and transmits it to the balance plate 67 where the rangefinder 3 is located through the rotating rod 66. Currently, the dumbbell does not have connecting plates 65 at both ends to protect it from slippage. By adding connecting plates 65, the dumbbell's anti-slip function is further enhanced, making the dumbbell safer.

[0043] like Figure 2 , Figure 7 , Figure 8 and Figure 9 As shown, both the outer and inner circumferential surfaces of the rotary rod 66 are arc surfaces, and the arc surfaces are coaxial with the connecting plate 65. This makes the force on the rotary rod 66 more even when it rotates, making it less prone to vibration during rotation. Furthermore, the bottom of the end of the rotary rod 66 away from the balance plate 67 is also arc-shaped. This arc-shaped bottom reduces the contact area between the rotary rod 66 and the connecting plate 65, making it easier to rotate. A second guide head 661 is installed at the end of the rotary rod 66 away from the balance plate 67. The top of the second guide head 661 is arc-shaped, increasing the contact area with the slide rail 654 and making it less likely for the rotary rod 66 to disengage during rotation. A limit block 662 is installed at the other end of the lower part of the slide rail 654 and the rotary rod 66. The limit block 662 has a groove and is slidably connected to the push block 663 by a spring. The spring presses the second guide head 661 tightly onto the slide rail 654, making it difficult for the second guide head 661 to fall off the slide rail 654, thereby enabling the rotary rod 66 to stably transmit current. The push block 663 has a groove, and one side of the limit block 662 is located inside the push block 663, so that the rotary rod 66 can use the limit block 662 to push the push block 663 to rotate around the axis of the connecting plate 65 during rotation, thereby causing the spring to continuously push the rotary rod 66.

[0044] During the rotation of the balance plate 67, the balance plate 67 drives the rotary rod 66 to rotate along the axis of the threaded rod 2. When the rotary rod 66 rotates, the push block 663 uses a spring to push the limit block 662, so that during the rotation of the rotary rod 66, the second guide head 661 is always in contact with the slide rail 654. At the same time, the part of the limit block 662 located inside the push block 663 drives the push block 663 to rotate together. When the handle 62 is turned, the handle 62 drives the connecting plate 65 to rotate. However, since one end of the rotary rod 66 is connected to the balance plate 67, the connecting plate 65 cannot drive the rotary rod 66 to rotate, so that the rotary rod 66 is not affected when the handle 62 is turned.

[0045] like Figure 3 and Figure 9 As shown, the balance plate 67 consists of two circles connected vertically, making it easier to find the center of gravity of the balance plate 67 during installation, thus facilitating the installation of the rangefinder 3. The weight of the lower circular structure is much greater than that of the upper circular structure. A through hole is provided on the axis at the junction of the two circles, so that when the balance plate 67 rotates, the lower part of the balance plate 67 is always below the axis, and the axis of the balance plate 67 is always perpendicular to the ground. A fixing groove 671 is provided on the top surface of the upper part of the balance plate 67, and the fixing groove 671 is slidably connected to the rotating rod 66. An observation hole 672 is provided at the lower apex of the balance plate 67. A fixing plate 673 is provided on the inner wall of one side of the balance plate 67, and a rectangular protrusion is provided in the middle of the fixing plate 673.

[0046] When a fitness enthusiast performs dumbbell lateral raises, the dumbbells move in a circular motion along the shoulders, causing the center of gravity of the dumbbells to constantly change direction during the ascent. Since the balance plate 67 is lighter at the top and heavier at the bottom, it rotates continuously during the dumbbell movement, keeping the center of gravity of the balance plate 67 constant. This ensures that the rangefinder 3 installed at the bottom of the balance plate 67 remains perpendicular to the ground, and that the vibrating block 69 is always subjected to vertical acceleration.

[0047] like Figure 3 and Figure 10As shown, the clamping plate 68 has symmetrical grooves at both ends. A lifting plate 681 is slidably installed in the upper groove of the clamping plate 68. The lifting plate 681 has a concave structure, which allows it to move synchronously up and down when it moves. A pressure plate 682 is slidably installed in the lower groove of the clamping plate 68. The pressure plate 682 also has a concave structure, which allows it to move synchronously up and down when it moves. The pressure plate 682 is located inside the lifting plate 681 and does not contact the lifting plate 681, so that the pressure plate 682 and the lifting plate 681 will not interfere with each other when they are working. A spring is installed at the lower part of the pressure plate 682, so that the pressure plate 682 never contacts the bottom of the clamping plate 68. A spring is installed at the upper part of the lifting plate 681, so that the lifting plate 681 never contacts the top of the clamping plate 68. A transmission plate 683 is installed at the lower gap between the pressure plate 682 and the lifting plate 681. Power can be transmitted to the transmission plate 683 whenever either the pressure plate 682 or the lifting plate 681 moves. The transmission plate 683 is fixedly installed on the balance plate 67. Under normal conditions, the transmission plate 683 does not contact the pressure plate 682 and the lifting plate 681, so that no current flows through the transmission plate 683 under normal conditions.

[0048] When the dumbbell moves upward, the vibrating block 69 pushes the pressure plate 682 downward under the action of inertia. After the pressure plate 682 moves downward, the bottom of the pressure plate 682 contacts the upper part of the transmission plate 683, making the transmission plate 683 energized. This allows the transmission plate 683 to transmit current to the rangefinder 3 through the wire, thus activating the rangefinder 3. When the dumbbell moves downward, the vibrating block 69 pushes the lifting plate 681 upward under the action of inertia. After the lifting plate 681 moves upward, the bottom of the lifting plate 681 contacts the bottom of the transmission plate 683, making the transmission plate 683 energized. This ensures that the rangefinder 3 can work during the dumbbell's movement. However, when the arm is stationary and the dumbbell is not moving, the rangefinder 3 is not activated.

[0049] like Figure 3 and Figure 11As shown, the vibrating block 69 has a spherical structure in the middle, which prevents the ball bearing 692 from rolling when the dumbbell is slightly tilted, thus preventing errors. The two ends are cylindrical structures, which prevent the ball bearing 692 from vibrating during movement, making the movement of the vibrating block 69 more stable. The vibrating block 69 is hollow inside, providing space for the ball bearing 692 to move. The axis of the vibrating block 69 is perpendicular to the end face of the balance plate 67, allowing the vibrating block 69 to monitor the horizontal tilt of the handle 62 using the ball bearing 692. The angle between the apex of the spherical structure and the connection point of the cylindrical structure and the horizontal ground is 30°. Only when the dumbbell tilt exceeds 30° will the ball bearing 692 detach from the circular structure and engage with the sensing plate. The cylindrical structure has induction plates 691 installed on both sides, allowing the ball bearings to monitor the tilt direction of the dumbbell regardless of which side it tilts. A ball bearing 692 is installed inside the circular structure. A swing arm 693 is installed on the outer surface of the vibrating block 69. The swing arm 693 is made of elastic material, which allows the vibrating block 69 to swing under inertia. Furthermore, the elastic swing arm 693 ensures that the vibrating block 69 will not stop vibrating for a short period, thus continuously pushing the clamping plate 68. One end of the swing arm 693 is fixedly connected to the fixing plate 673, with the end face of the swing arm 693 facing upwards. This upward-facing end face of the swing arm 693 means that the swing direction of the swing arm 693 can only be vertical.

[0050] When the dumbbell moves upward, the vibrating block 69 moves downward under the action of inertia, pushing the pressure plate 682, while the swing rod 693 bends downward; when the dumbbell moves downward, the vibrating block 69 moves upward under the action of inertia, pushing the lifting plate 681, while the swing rod 693 bends upward; when the dumbbell is stationary for a short time, the swing rod 693 drives the vibrating block 69 to swing up and down, so that the pressure plate 682 and the lifting plate 681 are constantly being pushed; when the dumbbell tilts more than 30° in the horizontal direction, the ball bearing 692 rolls inside the vibrating block and squeezes the sensing plate 691, and the sensing plate 691 sends a signal to make the indicator light 5 light up. Compared with the existing vibrating block 69, the vibrating block 69 of the present invention can not only push the clamping plate 68 by inertia, but also use the ball bearing 692 to monitor the horizontal tilt of the dumbbell, and the vibrating block 69 is kept vertical by the action of the balance plate 67.

[0051] In operation, when the user grips the dumbbells, their palm squeezes the rubber protective sleeve 61, causing the sleeve to compress the apex of the curved rod 63. This compression causes both ends of the curved rod 63 to move laterally, driving the sliders 64 at both ends to move. After the sliders 64 move, the first guide head 641 at the front end of the slider 64 presses against the compression block 652 on the connecting plate 65. Current in the connecting plate 65 is transmitted to the slider 64 through the compression block 652. The current in the slider 64 then passes through a wire through the curved rod 63 to the other end of the slider 64. The other end of the slider 64 is slidably connected to the compression block 652, allowing current to flow through the slider 64 into the connecting plate 65. The current is transmitted through the rotary rod 66 to the balance plate 67 on the other side opposite the power source 4. When the balance plate 67 rotates, it will drive the rotary rod 66 to rotate around the axis of the handle 62. At the same time, when the connecting plate 65 rotates under the drive of the handle 62, the rotation of the connecting plate 65 will not drive the rotary rod 66 to rotate. The current in the balance plate 67 is supplied to the signal light 5 and the rangefinder 3. When the exerciser's grip strength decreases or the grip posture is incorrect, the pressure on one side of the curved rod 63 decreases, and the curved rod 63 retracts towards the middle, pulling the sliders 64 at both ends towards the middle. At this time, the sliders 64 are disconnected from the squeezing block 652 and the power to the sliders 64 is cut off. The remaining unretracted curved rods 63 continue to supply current to the balance plate 67. When one side of the curved rod 63 is de-energized, the signal light 5 on the top of the balance plate 67 will issue a reminder.

[0052] During the dumbbell's movement, the balance plate 67, being top-light and bottom-heavy, and capable of rotating around the threaded rod 2, ensures that its axis remains perpendicular to the ground, thereby keeping the rangefinder 3 perpendicular to the ground. When the dumbbell tilts more than 30° in the horizontal direction, the ball bearing 692 rolls inside the vibrating block 69, pressurizing the sensing plate 691. The sensing plate 691 then sends a signal to illuminate the indicator light. During the upward movement of the dumbbell, the inertia of the vibrating block 69 during movement causes it to push the lower pressure plate 682. After the pressure plate 682 is pushed downward, its bottom contacts the top of the transmission plate 683, thereby transmitting current to the transmission plate 683. The transmission plate 683 then transmits the current to the rangefinder 3 through wires, enabling the rangefinder 3 to operate. When the dumbbell moves downward, the vibrating block 69 moves upward, pushing the lifting plate 681. After the lifting plate 681 moves upward, its bottom contacts the bottom of the transmission plate 683, thereby transmitting current to the transmission plate 683.

[0053] The description herein is provided to enable those skilled in the art to implement or use the present disclosure. Various modifications to the present disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dumbbell with intelligent monitoring of fitness movements, comprising dumbbell plates (1), a threaded rod (2), a rangefinder (3), a power supply (4), and a signal light (5), wherein the dumbbell plates (1) are mounted on the threaded rod (2), the threaded rod (2) is connected to a connecting plate (65), the rangefinder (3) is mounted below a balance plate (67), the power supply (4) is mounted below the balance plate (67) on the other side, and the signal light (5) is mounted on the top of the balance plate (67), characterized in that, It also includes an adjustment mechanism (6), which is connected to the threaded rod (2) on both sides. After the exerciser squeezes the protective sleeve (61), the protective sleeve (61) drives the two sides of the crank rod (63) to move to both ends. The two ends of the crank rod (63) drive the slider (64) to move. After the slider (64) moves, it squeezes the connecting plate (65) to connect the power supply (4). The current passes through the crank rod (63) to the balance plate (67) on the other side. The lifting plate (681) and the pressure plate (682) are slidably installed inside the clamping plate (68), and the transmission plate (683) is fixedly installed in the gap between the pressure plate (682) and the lifting plate (681). When the vibration block (69) located inside the balance plate (67) moves downward or upward under the action of inertia, it pushes the pressure plate (682) or the lifting plate (681) to contact the transmission plate (683), so that the current enters the rangefinder (3) through the transmission plate (683). The adjustment mechanism (6) includes a protective sleeve (61), a handle (62), a crank (63), a slider (64), a connecting plate (65), a rotary rod (66), a balance plate (67), a clamping plate (68), and a vibration block (69). The protective sleeve (61) is installed on the outer surface of the handle (62). Multiple cranks (63) are arranged in a circular array along the axis of the inner wall of the handle (62). Sliders (64) are installed at both ends of the cranks (63). When the cranks (63) move downward, they cause the sliders (64) at both ends to contact the connecting plate (65). One end of the connecting plate (65) is connected to the handle (62), and the other end of the connecting plate (65) is connected to the handle (62). The end is connected to the threaded rod (2), the rotary rod (66) is slidably installed in the connecting plate (65), the balance plate (67) is rotatably installed on the threaded rod (2), and the balance plate (67) is connected to the connecting plate (65) through the rotary rod (66), the clamping plate (68) is fixedly installed inside the balance plate (67), the vibration block (69) is located inside the balance plate (67), and one end is fixedly connected to the balance plate (67), and the other end is slidably connected to the clamping plate (68); the front end of the slider (64) is equipped with a first guide head (641); the curved rod (63) is made of elastic material, and the curved rod (63) is arched when there is no force; The bottom of the connecting plate (65) is provided with a plurality of energized grooves (651) arranged in a circular array along the axial direction. The energized grooves (651) are opposite to the first guide head (641), and the diameter of the energized grooves (651) is larger than the diameter of the first guide head (641). The bottom of the energized grooves (651) is connected to the extrusion block (652) by a spring. The connecting plate (65) is provided with an annular sliding cavity (653). The end of the sliding cavity (653) facing the balance plate (67) is connected to the outside. The annular sliding cavity (653) allows the rotary rod (66) to rotate around the axis in the sliding cavity (653). An annular slide rail (654) is installed inside the sliding cavity (653). The top and bottom surfaces of the slide rail (654) do not contact the connecting plate (65). The outer and inner circumferential surfaces of the rotary rod (66) are both arc surfaces, and the arc surfaces are coaxial with the connecting plate (65). The bottom of the end of the rotary rod (66) away from the balance plate (67) is also arc surface. A second guide head (661) is installed at the end of the rotary rod (66) away from the balance plate (67). The top of the second guide head (661) is arc surface. A limit block (662) is installed at the other end of the lower part of the rotary rod (66). The limit block (662) has a groove. The limit block (662) is slidably connected to the push block (663) by a spring. The push block (663) has a groove, and one side of the limit block (662) is located inside the push block (663). The balance plate (67) consists of two circles connected vertically, with the weight of the lower circular structure being much greater than that of the upper circular structure. A through hole is provided on the axis where the two circles meet. A fixing groove (671) is provided on the top surface of the upper part of the balance plate (67). The fixing groove (671) is slidably connected to the rotating rod (66). An observation hole (672) is provided at the lower apex of the balance plate (67). A fixing plate (673) is provided on the inner wall of one side of the balance plate (67). The clamping plate (68) has symmetrical grooves at both ends. A lifting plate (681) is slidably installed in the upper groove of the clamping plate (68). The lifting plate (681) has a concave structure. A pressure plate (682) is slidably installed in the lower groove of the clamping plate (68). The pressure plate (682) also has a concave structure. The pressure plate (682) is located inside the lifting plate (681) and does not contact the lifting plate (681). A spring is installed at the lower part of the pressure plate (682) and a spring is installed at the upper part of the lifting plate (681). A transmission plate (683) is installed at the gap between the pressure plate (682) and the lower part of the lifting plate (681). The transmission plate (683) is fixedly installed on the balance plate (67). Under normal conditions, the transmission plate (683) does not contact the pressure plate (682) and the lifting plate (681).

2. The intelligent fitness movement monitoring dumbbell according to claim 1, characterized in that: The handle (62) has an olive-shaped structure. Multiple limiting grooves (621) are arranged in a circular array along the axial direction on the outer surface of the handle (62). Sliding grooves (622) are provided at the lower part of both ends of the limiting grooves (621).

3. The intelligent fitness movement monitoring dumbbell according to claim 2, characterized in that: The curved rod (63) has guide grooves (631) at both ends, and connecting blocks (632) are provided at both ends of the curved rod (63), with through holes provided on the connecting blocks (632).

4. The intelligent fitness movement monitoring dumbbell according to claim 3, characterized in that: The top of the slider (64) is an arc surface, and the top of the arc surface is smoothly connected to the crank rod (63). A connecting groove (642) is provided above the slider (64) and passes through the slider (64). A wire groove (643) is provided at the upper part of the rear end of the slider (64). Slide plates (644) are provided on both sides of the lower part of the slider (64).

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