A hand exercise device

Abstract

The application discloses a hand exercise device, which comprises a ring body, a counterweight and a handle. The ring body is internally provided with a rolling channel arranged in a circle. The counterweight is rollingly installed in the rolling channel. The handle is installed on the ring body, is arranged along the radial direction of the ring body and is located on the outer side of the ring body, so that the hand exercise device is in the shape of a racket. The handle is arranged on the ring body, so that the hand exercise device is in the shape of a racket and is convenient for a user to hold. Meanwhile, the handle also increases the shaking distance of the counterweight and the hands of the user. When the hand exercise device is shaken with the wrist, the elbow or the shoulder as the origin, compared with the exercise device with only a ring or the exercise device with a handle arranged in the ring body, the counterweight of the hand exercise device provided by the application can have a longer starting distance, so that the starting of the counterweight is more convenient or the counterweight is started with less power. Therefore, the application range of the hand exercise device provided by the application is improved.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, and in particular to a hand exercise device. Background Technology

[0002] An existing hand exercise device with a circular structure includes a circle and a counterweight set inside the circle. By holding the circle and swinging the hand, the counterweight swings and rotates along the circle, generating and producing exercise force. The person controls the exercise device with their hand to achieve the purpose of exercise.

[0003] Patent document CN202173731U discloses an exercise device. The device consists of a rigid annular tubular ring with an inner hole, and a spherical weighted movable member that can be placed inside the ring and move around it. The device also includes a handle member extending radially inward from the ring. By repeatedly rotating the exercise device, the spherical object rolls within the ring, generating inertial resistance within the device, thereby strengthening the user's wrists, abdomen, and other body parts.

[0004] This device utilizes the weight of a spherical, weighted movable component (i.e., a counterweight ball) to train hand and wrist strength. However, because the distance between the counterweight ball and the hand is relatively short, the device requires significant hand force to generate a large swinging distance to move the counterweight ball when activated. If hand strength is insufficient or the swinging distance is small, it is difficult to move the counterweight ball, making it difficult to activate the device. Therefore, this device is less suitable for users with insufficient hand strength. Utility Model Content

[0005] This invention addresses the above-mentioned problems and overcomes at least one deficiency by proposing a hand exercise device.

[0006] This application provides a hand exercise device, including a ring body, a grip bar, and at least one counterweight;

[0007] The inner part of the ring body is provided with a circumferentially arranged rolling channel;

[0008] The counterweight is rotatably disposed within the rotatable channel;

[0009] The grip bar is connected to the ring body, and the grip bar is arranged radially along the ring body and located on the outside of the ring body.

[0010] By incorporating a grip on the ring, the hand exercise device takes on a racket-like shape, making it easier for users to hold. Simultaneously, the grip increases the swing distance between the counterweight and the user's hand. When swinging the hand exercise device with the wrist, elbow, or shoulder as a fulcrum, compared to exercise devices with only a ring or handles located inside the ring, the counterweight in this hand exercise device has a longer starting distance (i.e., when the hand is gripped, only a smaller swing amplitude is needed to move the counterweight ball), making it easier to activate the counterweight or to activate it with less force. This further expands the applicable population of the hand exercise device provided in this application, including, for example, women, children, and the elderly.

[0011] As one possible implementation, the ring body is a circular ring body, and the rolling channel is a circular rolling channel;

[0012] Alternatively, the ring body may be an elliptical ring body, and the rolling channel may be an elliptical rolling channel.

[0013] In one possible implementation, the longitudinal section of the rolling channel is circular, the counterweight is a counterweight ball, the outer diameter of the counterweight ball is smaller than the inner diameter of the circular rolling channel, and each counterweight ball has equal or unequal mass.

[0014] In one possible implementation, the ring body includes an upper ring body and a lower ring body, which are interlocked and detachably connected.

[0015] After the upper and lower rings are disassembled, weights of different masses can be replaced, or the number of weights can be increased or decreased. By designing the upper and lower rings as detachable, the weight distribution of the hand exercise device is replaceable. This means users can add different numbers or weights of weights, thus flexibly adjusting the overall weight of the hand exercise device. This design not only allows for setting different exercise difficulties but also meets diverse usage needs. Different users can choose an appropriate weight for training based on their strength level.

[0016] In one possible implementation, the upper ring body and the lower ring body are respectively provided with corresponding connecting lugs, and the connecting lugs are provided with connecting holes; when the upper ring body and the lower ring body are fastened together, the connecting lugs are also fastened together accordingly, and the fasteners pass through the connecting holes to detachably fix the upper ring body and the lower ring body.

[0017] In one possible implementation, the two ends of the grip bar are a connecting end and a grip end, respectively. The connecting end is fixedly connected to the ring body, and the grip end has multiple gripping positions.

[0018] In practical applications, the grip end is typically longer than the width of an adult's palm. Users can choose to hold the grip closer to or further away from the connection end based on their personal preferences. The recommended grip end length is 2.5 times the width of an adult's palm. The width of an adult's palm referred to here is calculated based on the average width of an adult's palm (the distance from the base of the thumb to the base of the little finger), which is generally between 7 and 10 centimeters.

[0019] In addition, the grip end is provided with a grip groove, which is adapted to the shape of the user's hand when gripping the grip end, so that the user can grip the bar more comfortably.

[0020] In one possible implementation, the grip end includes a cap that is detachably mounted on the shaft, and a first receiving groove is formed in the shaft for placing a counterweight.

[0021] By incorporating a first receiving slot within the rod, excess counterweights outside the rolling channel can be accommodated. Furthermore, by placing different numbers or weights of counterweights, the overall weight of the hand exercise device can be controllably varied. This not only allows for different exercise levels but also caters to the needs of diverse users. Different users can choose different weights based on their own strength.

[0022] In actual use, the first receiving groove is located at the handle end.

[0023] In one possible implementation, the grip bar further includes a connecting rod portion disposed between the connecting end and the grip end. The connecting rod portion is a telescopic rod, which includes a telescopic end and a fixed end.

[0024] When the telescopic rod is in working condition, the telescopic end of the telescopic rod is in a retracted or extended state and remains fixed relative to the fixed end of the telescopic rod.

[0025] By incorporating a retractable connecting rod, users can adjust the length of the grip according to their individual needs, thereby enhancing the practicality and adaptability of this hand exercise device.

[0026] As one possible implementation, the connecting end of the grip is a "T" type connector:

[0027] The large end of the "T"-shaped connector has a connecting through hole, and it is fitted onto the ring body through the connecting through hole;

[0028] The small end of the "T"-shaped connector is fixed to the handle end;

[0029] Or,

[0030] The connecting end of the grip is a "Y" type connector:

[0031] The small end of the “Y” type connector is fixed to the outer wall of the ring body and is connected to the ring body in an arc transition.

[0032] The large end of the "Y"-shaped connector is fixed to the handle end.

[0033] In this application, the large end of a "T" type connector refers to the crossbar portion of the "T" type connector, while the small end of a "T" type connector refers to the longitudinal bar portion of the "T" type connector. Correspondingly, the large end of a "Y" type connector refers to the longitudinal bar portion of the "Y" type connector, while the small end of a "Y" type connector refers to the two branch pipes installed on the large end (longitudinal bar).

[0034] As one possible implementation, it also includes a display screen, a main control board, a counter, and / or a timer;

[0035] The counter is electrically connected to the main control board, and the counter is used to count the number of times the counterweight passes by.

[0036] The timer is electrically connected to the main control board and is used to record motion time.

[0037] The display screen is electrically connected to the main control board and is used to display the results of counting and / or timing.

[0038] In practical applications, the grip bar can be equipped with a rechargeable battery to power the display screen, main control board, counter, and / or timer, facilitating multiple uses of the device. Furthermore, to enhance portability and user experience, the rechargeable battery can be charged via a USB interface, allowing users to easily replenish the battery using everyday charging devices. Additionally, to remind users to charge in time, the device can also feature a power indicator light; when the battery is low, the indicator light will emit a warning signal, ensuring that users are not interrupted from exercising due to depleted power.

[0039] In addition, a timing button is provided on the grip bar. The timing button is set to correspond to the timing switch on the main control board. By pressing the timing button, the timing can be started or stopped.

[0040] In one possible implementation, the connecting end of the rod is further provided with a second receiving groove, in which the display screen, main control board, counter and / or timer are installed.

[0041] As one possible implementation, the counterweight is a magnetic counterweight;

[0042] The counter includes a Hall sensor, and the main control board includes a main control module;

[0043] The Hall sensor is located on the side of the connection end near the ring body. When the counterweight passes the Hall sensor, the Hall sensor detects the change in magnetic field and outputs a signal to the main control module, which then performs counting.

[0044] In practical applications, the main control board is equipped with a microcontroller, such as an Arduino Nano or ESP32. When the magnetic weight component approaches the Hall sensor, the sensor detects the presence of a magnetic field; conversely, when the magnetic weight component moves away, the magnetic field disappears. This periodic appearance and disappearance of the magnetic field allows the Hall sensor to perform a counting function by detecting periodic changes in the magnetic field. Specifically, after detecting a change in the magnetic field, the Hall sensor outputs a pulse signal (e.g., a square wave signal). Each pulse signal represents one change in the magnetic field; therefore, counting is achieved by counting the number of pulse signals. The output signal of the Hall sensor is connected to the microcontroller, and the pulse signals are processed by programming to count, ultimately displaying the counting result on a display screen.

[0045] By configuring a counter (Hall sensor), the main control board will automatically count each time the weight ball passes a specific position. The count value is displayed on the screen in real time to quantitatively record the number of times the weight ball circulates during the exercise, thereby achieving a quantitative assessment of the exercise effect. At the same time, by setting a timer, the time consumed in the entire exercise cycle can be accurately recorded, and a countdown function is supported. The time information is also displayed on the screen, making the user experience more convenient.

[0046] Furthermore, the main control board integrates a data analysis module, enabling in-depth analysis of the user's exercise data. Through algorithmic processing, it can provide detailed exercise reports, including but not limited to parameters such as the average speed, acceleration, and trajectory of the weighted ball. This data not only helps users understand their athletic performance but also provides valuable reference for the scientific planning and adjustment of exercise training.

[0047] In terms of hardware design, high-precision Hall sensors and microprocessors are employed to ensure the accuracy and real-time performance of data acquisition. Meanwhile, considering user convenience, the system interface, i.e., the display screen, is designed to be simple and intuitive, allowing users to easily set and operate various functions. Furthermore, the portable design of the hand exercise device allows users to exercise in different settings, without location restrictions.

[0048] The beneficial effects of this utility model are:

[0049] (1) A grip is provided on the ring body, making the hand exercise device resemble a racket shape, which is convenient for the user to hold. In addition, the grip increases the swing distance between the counterweight and the user's hand. When swinging with the wrist, elbow or shoulder as the rotation center, compared with exercise devices that only have a ring structure or whose handle is located inside the ring body, the counterweight of the hand exercise device involved in this utility model has a longer starting distance (that is, when the hand is holding the handle, only a small swing amplitude is needed to trigger the movement of the counterweight ball), thus making it easier to start the counterweight or to start the counterweight with less force. Therefore, the hand exercise device involved in this application can expand the scope of applicable people, including but not limited to women, children, the elderly, etc.

[0050] (2) By designing the upper and lower rings as detachable, the weight system of the hand training device allows users to change the weight. Different users can choose different weights or numbers of weights according to their own needs. In addition, by setting a receiving slot in the shaft, not only can excess weights be stored, but the overall weight of the racket can also be flexibly controlled by adjusting the number or weight of the weights. This allows the training difficulty and usage needs to be personalized to meet the specific needs of different users.

[0051] (3) Through the telescopic connecting rod, the user can adjust the length of the grip according to personal needs, thereby improving the practicality and adaptability of the hand exercise device of this application.

[0052] (4) By configuring a counter (Hall sensor), the system automatically counts once each time the counterweight ball passes a specific position. The counting result is displayed on the screen in real time, thus accurately recording the number of laps the counterweight ball moves throughout the entire exercise process and quantifying the exercise effect. At the same time, by setting a timer, the time consumed throughout the entire exercise process can be accurately measured, and a countdown function is supported, with the time information also displayed on the screen. This design makes the user experience more convenient. Attached Figure Description

[0053] Figure 1 This is an axonometric structural diagram of the hand exercise device according to Embodiment 1 of this utility model (the counter and display screen are not shown).

[0054] Figure 2 This is a side view of the hand exercise device according to Embodiment 1 of this utility model;

[0055] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of AA;

[0056] Figure 4 yes Figure 3 A magnified schematic diagram of the structure of part A in the diagram;

[0057] Figure 5 This is a side view of the hand exercise device according to Embodiment 1 of this utility model (hiding the upper ring body, bar cover, etc.).

[0058] Figure 6 This is a front view structural schematic diagram of the hand exercise device according to Embodiment 1 of this utility model;

[0059] Figure 7 This is a schematic diagram illustrating the principle and structure of the hand exercise device according to an embodiment of the present invention, which saves effort during use.

[0060] The labels for the attached figures are as follows:

[0061] 10. Ring body; 101. Rolling channel; 102. Gap position; 110. Upper ring body; 120. Lower ring body; 130. Connecting lug; 131. Connecting hole; 20. Counterweight; 30. Grip bar; 301. First receiving groove; 302. Second receiving groove; 310. Connecting end; 320. Grip end; 321. First grip position; 322. Second grip position; 323. Third grip position; 330. Rod body; 340. Rod cover; 40. Display screen; 50. Counter. Detailed Implementation

[0062] The present invention will now be described in detail with reference to the accompanying drawings. Example

[0063] like Figures 1-7 As shown, this application provides a hand exercise device, including a ring body 10, a counterweight 20, and a grip bar 30;

[0064] The inner part of the ring body 10 is provided with a circumferentially arranged rolling channel 101;

[0065] The counterweight 20 is swirled within the swirling channel 101;

[0066] The grip bar 30 is mounted on the ring body 10. The grip bar 30 is arranged radially along the ring body 10 and located on the outside of the ring body 10, so that the hand exercise device is shaped like a racket.

[0067] By mounting a grip bar 30 on the ring body 10, the hand exercise device takes on a racket-like shape, making it easy for the user to hold. The grip bar 30 not only increases the swing distance between the weight 20 and the user's hand, but also allows for a longer starting distance (e.g., when swinging the hand exercise device with the wrist, elbow, or shoulder as the fulcrum, compared to exercise devices using only a ring or those with handles located inside the ring body 10). Figure 7As shown, when the hand is gripping the handle 30, the wrist moves (rotates) a distance of H1, and the counterweight 20 moves (rotates) a distance of H2 along the ring 10, where H2 is much larger than H1. This means that only a small swing amplitude is needed to move the counterweight ball a large distance, making it easier to activate the counterweight 20 and reducing the force required to activate it. This further expands the applicable population of the hand exercise device of this application, including women, children, and the elderly.

[0068] In this embodiment, the grip bar 30 is detachably mounted on the ring body 10 by fasteners.

[0069] In other embodiments, the grip 30 and the ring body 10 can be integrally formed. Specifically, the upper ring body 110 and the rod cap 340 are integrally formed, and the lower ring body 120 and the rod body 330 are integrally formed.

[0070] In this embodiment, the ring body 10 is a circular ring body, and the rolling channel 101 is a circular rolling channel.

[0071] In other embodiments, the ring body 10 is an elliptical ring body, and the rolling channel 101 is an elliptical rolling channel.

[0072] In this embodiment, the longitudinal section of the rolling channel 101 is circular, and the counterweight 20 is a counterweight ball. The outer diameter of the counterweight ball is smaller than the inner diameter of the circular rolling channel 101. There are multiple counterweight balls, and the multiple counterweight balls may have equal or unequal masses.

[0073] In other embodiments, a train track structure is configured within the rolling channel 101, wherein the counterweight 20 adopts a double-cone structure. The two conical portions of the double-cone counterweight are located on the two side rails of the train track structure and roll along the rails. In this case, the longitudinal section of the rolling channel 101 can be rectangular or circular.

[0074] In this embodiment, the ring body 10 includes an upper ring body 110 and a lower ring body 120 that are interlocked with each other, and the upper ring body 110 and the lower ring body 120 are detachably connected.

[0075] After the upper ring body 110 and the lower ring body 120 are disassembled, the counterweights 20 with different masses can be replaced or the number of counterweights 20 can be increased or decreased.

[0076] By designing the ring 10 as a detachable upper ring 110 and lower ring 120, the counterweights 20 of the hand exercise device can be easily replaced. This means that users can place different numbers or weights of counterweights 20 to achieve precise adjustment of the overall weight of the device. This design not only provides exercises of different difficulty levels but also meets diverse usage needs. Different users can choose an appropriate weight for training according to their own strength level.

[0077] In this embodiment, the upper ring body 110 and the lower ring body 120 are respectively provided with corresponding connecting lugs 130, and the connecting lugs 130 are provided with connecting holes 131; when the upper ring body 110 and the lower ring body 120 are fastened together, the connecting lugs 130 are also fastened together accordingly, and the fasteners pass through the connecting holes 131 to detachably fix the upper ring body 110 and the lower ring body 120.

[0078] In other embodiments, the upper ring body 110 may be provided with a locking block, and the lower ring body 120 may be provided with a locking groove. Alternatively, the upper ring body 110 may be provided with a locking groove, and the lower ring body 120 may be provided with a locking block, with the locking block engaging in the locking groove, so that the upper ring body 110 and the lower ring body 120 can be detachably fixed.

[0079] In this embodiment, the two ends of the grip 30 are a connecting end 310 and a grip end 320, respectively, and the grip 30 is fixed to the ring body 10 through the connecting end 310;

[0080] The grip end 320 has multiple grip positions.

[0081] In practical use, the length of the grip end 320 can be greater than the width of a palm, allowing the hand to grip the grip end 320 either closer to or further away from the connecting end 310. The preferred length of the grip end 320 is 2.5 times the width of a palm. The width of a palm is calculated based on the width of an adult's palm (the distance from the base of the thumb to the base of the little finger), which is 7 to 10 centimeters.

[0082] In this embodiment, the length of the grip end 320 is 25 centimeters.

[0083] like Figure 6 As shown, in this embodiment, the handle has three gripping positions: a first gripping position 321, a second gripping position 322, and a third gripping position 323.

[0084] In this embodiment, the grip end 320 is provided with a grip groove, which is adapted to the shape of the user's hand when gripping the grip end 320, so that the user can grip the handle 30 more comfortably.

[0085] In this embodiment, the grip bar 30 includes a bar body 330 and a bar cover 340 detachably mounted on the bar body 330. A first receiving groove 301 is formed in the bar body 330 for placing the counterweight 20.

[0086] By providing a first receiving groove 301 within the rod body 330, excess counterweights 20 outside the rolling channel 101 can be accommodated. Furthermore, by placing different numbers or weights of counterweights 20, the overall weight of the hand exercise device can be controllably varied, thereby achieving different exercise difficulties and meeting the needs of different users. Different users can choose different weights for exercise based on their own strength.

[0087] In actual use, the first receiving groove 301 is located at the handle end 320.

[0088] In this embodiment, the connecting end 310 of the grip 30 is a "Y" type connector:

[0089] The small end of the “Y” type connector is fixed on the outer wall of the ring body 10 and is connected to the ring body 10 in an arc transition.

[0090] The large end of the “Y” type connector is fixed to the handle end at 320°.

[0091] In other embodiments, the connecting end 310 of the grip 30 is a "T"-shaped connector:

[0092] The large end of the “T” type connector has a connecting through hole, and it is fitted onto the ring body 10 through the connecting through hole;

[0093] The small end of the "T" connector is fixed to the handle end 320.

[0094] like Figure 6 As shown, in this embodiment, it also includes a display screen 40, a main control board (not shown in the figure), a counter 50, and a timer (not shown in the figure).

[0095] Counter 50 is electrically connected to the main control board and is used to count the number of times the counterweight 20 passes by.

[0096] The timer is electrically connected to the main control board and is used to record motion time.

[0097] The display screen 40 is electrically connected to the main control board and is used to display the results of counting and / or timing.

[0098] In this embodiment, the main control board and the timer are respectively installed inside the connection end 310 of the grip 30. In actual use, when the interval between the "Y" type connector and the ring body 10 is small or there is no interval, the counter 50 can also be installed inside the connection end 310.

[0099] In this embodiment, the counter 50 is installed at the gap position 102 between the Y-shaped connector of the grip 30 and the ring body 10, and the display screen 40 is installed outside the connection end 310.

[0100] In actual use, the grip 30 can also have a built-in rechargeable battery to power the display 40, main control board, counter 50 and / or timer for easy reuse.

[0101] In this embodiment, a timing button (not shown in the figure) is also provided on the grip 30. The timing button is set to correspond to the timing switch on the main control board. By pressing the timing button, the timing can be started or stopped.

[0102] In other embodiments, the timer may also be a 555 timer, with its pins connected to the main control board.

[0103] In other embodiments, the timer can also be started or stopped via an accelerometer. The timer starts when the accelerometer detects a change in the acceleration of the hand exercise device; it stops when no change is detected. In this case, the main control board controls the entire process.

[0104] In this embodiment, the display screen 40 is an OLED display screen or a seven-segment digital tube.

[0105] In this embodiment, the connecting end 310 of the rod 330 is also formed with a second receiving groove 302, and the main control board, counter 50 and timer are installed in the second receiving groove 302.

[0106] In this embodiment, the counterweight 20 is a magnetic counterweight;

[0107] The counter 50 is equipped with a Hall sensor, which is mounted near the connection end 310, close to the side of the ring body 10. Each time the Hall sensor detects that the counterweight 20 passes through the connection end 310, it communicates with the main control board and performs a count.

[0108] The main control board is used to process sensor data and control the display screen 40.

[0109] In practical applications, the main control board is equipped with a microcontroller, such as an Arduino Nano or ESP32. When the magnetic weight approaches the Hall sensor, the sensor detects the presence of a magnetic field; when the magnetic weight is removed, the magnetic field disappears. This periodic appearance and disappearance of the magnetic field allows the Hall sensor to count by detecting periodic changes in the magnetic field. Specifically, whenever the Hall sensor detects a change in the magnetic field, it outputs a pulse signal (e.g., a square wave). Each pulse signal represents one change in the magnetic field; therefore, by counting the number of pulse signals, we can achieve the counting function. After connecting the output signal of the Hall sensor to the microcontroller, the pulse signals are counted through programming, and the counting result is displayed on the display screen 40.

[0110] By setting counter 50 (Hall sensor), the counterweight ball counts each time it passes this position. The count is displayed on display screen 40, thus recording the number of revolutions the counterweight ball makes during the entire exercise, quantifying the exercise effect. By setting a timer, the total exercise time can be recorded, or a countdown can be started, with the time displayed on display screen 40. This makes it more convenient to use. Example

[0111] The difference between this embodiment and Embodiment 1 lies in the structure of the grip. In this embodiment, the grip also includes a connecting rod (not shown), which is located between the connecting end and the grip end. The connecting rod is a telescopic rod, and the telescopic rod has at least a first working position and a second working position.

[0112] When the telescopic rod is in the first working position, the telescopic end of the telescopic rod is in a retracted state;

[0113] When the telescopic rod is in the second working position, the telescopic end of the telescopic rod is in an extended state and remains fixed relative to the fixed end of the telescopic rod.

[0114] With the retractable connecting rod, the user can adjust the length of the grip bar 30 as needed, which enhances the practicality and adaptability of the hand exercise device of this application.

[0115] The above description is only a preferred embodiment of the present utility model and does not limit the scope of patent protection of the present utility model. Any equivalent structural transformations made based on the content of the present utility model specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present utility model.

Claims

1. A hand exercise device, characterized in that, Includes the ring body, grip bar, and at least one counterweight; The inner part of the ring body is provided with a circumferentially arranged rolling channel; The counterweight is rotatably disposed within the rotatable channel; The grip bar is connected to the ring body, and the grip bar is arranged radially along the ring body and located on the outside of the ring body.

2. The hand exercise device as described in claim 1, characterized in that, The ring body is a circular ring body, and the rolling channel is a circular rolling channel; Alternatively, the ring body may be an elliptical ring body, and the rolling channel may be an elliptical rolling channel.

3. The hand exercise device as described in claim 1, characterized in that, The longitudinal section of the rolling channel is circular, and the counterweight is a counterweight ball. The outer diameter of the counterweight ball is smaller than the inner diameter of the circular rolling channel, and each counterweight ball may have equal or unequal mass.

4. The hand exercise device as described in claim 1, characterized in that, The ring body includes an upper ring body and a lower ring body, which are interlocked and detachably connected.

5. A hand exercise device as described in claim 1, characterized in that, The two ends of the grip are a connecting end and a grip end, respectively. The connecting end is fixedly connected to the ring body, and the grip end has multiple gripping positions.

6. A hand exercise device as described in claim 5, characterized in that, The grip end includes a cap that is detachably mounted on the shaft, and a first receiving groove is formed in the shaft for placing a counterweight.

7. A hand exercise device as described in claim 5, characterized in that, The grip also includes a connecting rod portion, which is disposed between the connecting end and the grip end. The connecting rod portion is a telescopic rod, which includes a telescopic end and a fixed end. When the telescopic rod is in working condition, the telescopic end of the telescopic rod is in a retracted or extended state and remains fixed relative to the fixed end of the telescopic rod.

8. A hand exercise device as described in claim 5, characterized in that, The connecting end of the grip is a "T" type connector: the large end of the "T" type connector has a connecting through hole, and is fitted onto the ring body through the connecting through hole; the small end of the "T" type connector is fixed to the grip end; Or, The connecting end of the grip is a "Y" type connector: the small end of the "Y" type connector is fixed to the outer wall of the ring body and is connected to the ring body in an arc transition; the large end of the "Y" type connector is fixed to the grip end.

9. A hand exercise device as described in claim 1, characterized in that, It also includes a display screen, main control board, counters and / or timers; The counter is electrically connected to the main control board, and the counter is used to count the number of times the counterweight passes by. The timer is electrically connected to the main control board and is used to record motion time. The display screen is electrically connected to the main control board and is used to display the results of counting and / or timing.

10. A hand exercise device as described in claim 9, characterized in that, The counterweight is a magnetic counterweight; The counter includes a Hall sensor, and the main control board includes a main control module; The Hall sensor is located on the side of the grip connecting end near the ring body. When the counterweight passes the Hall sensor, the Hall sensor detects the change in magnetic field and outputs a signal to the main control module, which then performs counting.

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