Hand exercise device with counting function

Abstract

The utility model discloses a hand exercise device with a counting function, and relates to the field of fitness equipment. The hand exercise device with the counting function comprises a fixed part and a rotating part, the fixed part is used for forming a path, and the rotating part rotates along the path. One of the fixed part and the rotating part is provided with a first sensing part, and the other is provided with a second sensing part. When the rotating part rotates, the first induction part and the second induction part intersect at the corresponding positions, and the first induction part and the second induction part generate induction and count. Through the arrangement of the sensor and the magnet, the sensor and the magnet intersect and generate an induction signal, and then corresponding counting is carried out according to the generated induction signal. Therefore, the hand exercise device with the counting function has the counting function, so that a user can visually and quantitatively know own exercise and exercise amount. In addition, different numbers of sensors or magnets are arranged, and the sensors and the magnets are matched in different modes to form induction signals, so that the counting function is more accurate.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to a hand exercise device with a counter. Background Art

[0002] With the progress of society, people's living standards are getting higher and higher. So people are gradually paying attention to health issues and starting to exercise. Due to the busy work schedule, more people choose to exercise at home. Therefore, various exercise equipment have begun to enter thousands of households. Among these exercise equipment, there are those that exercise the whole body, and those that exercise the arms, waist, back, legs, etc. Among them, those used to exercise the strength of the hands include: Flying Rod, Arm Strengthener, Gyro Wrist Ball, etc. However, whether it is Flying Rod, Arm Strengthener, Gyro Wrist Ball, etc., they all have the following problems:

[0003] 1. They are generally quite long. For example, a Flyx stick is approximately 150-160cm long, and even smaller arm trainers are generally around 60cm long. Even the smaller gyro wrist strength ball, due to the handle, is around 50cm long. Therefore, these exercise equipment are very bulky, making them difficult to store and pack. Especially during transportation, their slender shape can easily be squeezed or bumped by foreign objects, causing damage.

[0004] 2. Since the overall length of the Flying Rod is about 150-160CM, it will take up a lot of space when in use. Otherwise, it will easily hit people or objects around. Therefore, there are certain requirements for the use scene.

[0005] 3. Arm trainers and gyroscopic wrist strength balls are difficult for beginners with no prior training experience. Gyroscopic wrist strength balls are especially difficult to start and spin. Even with a starting aid, the gyroscopic wrist strength ball won't spin after the assistive start-up ends, thus failing to achieve the desired training effect.

[0006] 4. Many of these devices do not have a counting function, which means that users cannot have an intuitive and quantitative understanding of their exercise volume after the exercise, making it inconvenient to make accurate arrangements for their exercise plans. Utility Model Content

[0007] The present invention aims at solving the above problems, overcoming at least one of the shortcomings and providing a hand exercise device with a counter.

[0008] The technical solutions adopted by this utility model are as follows:

[0009] A hand exercise device with counting comprises a fixed part and a rotating part. The fixed part is used to form a path, and the rotating part rotates along the path.

[0010] One of the fixed part and the rotating part is provided with a first sensing part, and the other is provided with a second sensing part.

[0011] When the rotating part rotates, the first sensing part and the second sensing part intersect at a corresponding position, and both generate sensing signals and count.

[0012] During use, the sensor on the rotating part moves with it. When it passes the corresponding position of the sensor on the fixed part, the two sensors intersect, generating a sensing signal that is sent to the mainboard with a counting program for a count. Therefore, every time the two sensors intersect during exercise, a count is generated. At the end of the exercise, the total count is intuitively displayed, providing a digital display of the exercise results. This allows users to gain an intuitive understanding of their exercise workload and facilitates adjustments and planning for subsequent exercise plans.

[0013] In one embodiment of the present invention, the first sensing portion is one of the sensor and the magnet, and the second sensing portion is the other one.

[0014] In actual use, the sensor and magnet positions can be interchanged, providing multiple setup options to meet the diverse needs of design, production, assembly, and other R&D steps.

[0015] In one embodiment of the present invention, the first sensing portion is a sensor, and the second sensing portion is a magnet; the sensor is disposed on the inner wall surface of the fixed portion, and the magnet is disposed on the outer wall surface of the rotating portion.

[0016] When the rotating part rotates and the magnet moves to the corresponding position of the sensor, the sensor generates an induction signal and counts.

[0017] In actual use, the rotating part rotates, driving the magnet on its outer wall to revolve. When the magnet moves to the corresponding position of the sensor, the sensor on the inner wall of the fixed part and the magnet on the outer wall of the rotating part are facing each other. As a result, the two intersect, generating a sensing signal and counting. Therefore, each rotation is counted.

[0018] In one embodiment of the present invention, the number of sensors is greater than or equal to two and they are spaced apart from each other; the number of magnets is one;

[0019] When the rotating part rotates and the magnet moves through the corresponding position of each sensor, each sensor generates an induction signal; and after each sensor generates an induction signal, counting is performed.

[0020] In actual use, setting up multiple sensors to sense the magnet can improve the accuracy of counting and avoid the following situation: after the magnet intersects with a single sensor, that is, after the count is generated, it does not continue to move, but returns to the original path or stops, such as the last circle of the magnet rotating with the rotating part.

[0021] In one embodiment of the present invention, the number of sensors is one; the number of magnets is greater than or equal to two and they are spaced apart from each other;

[0022] When the rotating part rotates, the sensor generates an induction signal when each magnet moves past the corresponding position of the sensor; when the total number of induction signals equals the total number of magnets, it counts again.

[0023] In actual use, setting up multiple magnets to sense the sensor can improve the accuracy of counting and avoid the following situation: after a single magnet intersects the sensor, that is, after a count is generated, it does not continue to move, but returns to the original path or stops, such as the last circle of the magnet rotating with the rotating part.

[0024] In one embodiment of the present invention, the first sensing portion is a magnet, and the second sensing portion is a sensor; the magnet is disposed on the inner wall of the fixed portion, and the sensor is disposed on the outer wall of the rotating portion;

[0025] When the rotating part rotates, the sensor moves to the corresponding position of the magnet, and the sensor generates an induction signal and counts.

[0026] In actual use, the rotating part rotates, driving the sensor on its outer wall to orbit. When the sensor moves to the corresponding position of the magnet, the magnet on the inner wall of the fixed part and the sensor on the outer wall of the rotating part are facing each other. As a result, the two intersect, generating a sensing signal and counting. Therefore, each rotation is counted.

[0027] In one embodiment of the present invention, the number of magnets is greater than or equal to two and they are spaced apart from each other; the number of sensors is one;

[0028] When the rotating part rotates, the sensor generates an induction signal every time it moves past the corresponding position of each magnet. The sensor counts again when the total number of induction signals equals the total number of magnets.

[0029] In actual use, setting multiple magnets to sense the sensor can improve the accuracy of counting and avoid the following situation: after the sensor intersects with a single magnet, that is, after counting, it does not continue to move, but returns to its original position or stops.

[0030] In one embodiment of the present invention, the number of the magnet is one; the number of the sensors is greater than or equal to two and they are spaced apart from each other;

[0031] When the rotating part rotates, each sensor generates an induction signal when it moves through the corresponding position of the magnet; after each sensor generates an induction signal, it counts.

[0032] In actual use, setting up multiple sensors to sense the magnet can improve the accuracy of counting and avoid the following situation: after a single sensor intersects with the magnet and generates a count, it does not continue to move but returns to its original position or stops.

[0033] In one embodiment of the present invention, the sensor is electrically connected to a mainboard with a counting program and a battery; the mainboard is electrically connected to a display screen and / or a voice announcer.

[0034] During actual use, after the sensor transmits the generated sensing signal to the mainboard, the mainboard can display the counting information on the display screen through the built-in program for the user to check; or play the counting information through the voice announcer so that the user knows; or display the counting information on the display screen and play it through the voice announcer at the same time, so that the user can not only conveniently check the counting information, but also directly know the counting information through voice playback.

[0035] In one embodiment of the present invention, the sensor is a Hall sensor.

[0036] In actual use, the Hall sensor is the most stable and relatively low in cost, so it has the best cost performance.

[0037] The beneficial effects of the present invention are as follows: by configuring sensors and magnets, the two intersect and generate an induction signal, which is then used to perform a corresponding count. This provides a hand exercise device with a counting function, allowing users to gain an intuitive and quantitative understanding of their exercise and physical activity. Furthermore, by configuring different numbers of sensors or magnets and using different coordination methods to generate induction signals, the counting function can be made even more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 1 is a schematic structural diagram of a hand exercise device with counting function according to an embodiment;

[0039] Figure 2 1 is a schematic exploded view of the structure of a hand exercise device with counting function according to an embodiment;

[0040] Figure 3 1 is a schematic cross-sectional view of a hand exercise device with a counter according to an embodiment;

[0041] Figure 4 yes Figure 3 A magnified schematic diagram of the local structure at point A;

[0042] Figure 5 yes Figure 3 A magnified schematic diagram of the local structure at point B in the middle.

[0043] The reference numerals in the figures are:

[0044] 1. Fixed part; 2. Rotating part; 3. Hand-held part; 4. Counterweight part; 5. Cavity; 6. Roller; 8. Opening; 11. Sensor; 12. Magnet; 13. Mainboard. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0047] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0048] The present invention will be described in detail below with reference to the accompanying drawings.

[0049] Example 1

[0050] like Figures 1 to 2 As shown, a hand exercise device with a counter includes a fixed portion 1 and a rotating portion 2. The fixed portion 1 is used to form a path, and the rotating portion 2 is annular and rotates along the path. The diameter of the annular rotating portion 2 is approximately 25-30 cm. Therefore, the overall space occupied is significantly reduced compared to existing exercise equipment. This not only significantly reduces the requirements for the use scenario of a hand exercise device with a counter, but also makes it easier and more convenient to pack, store, and transport.

[0051] Moreover, compared with the slender exercise equipment in the prior art, the circular ring structure is more resistant to pressure and collision, making the whole body less likely to be damaged.

[0052] The fixing part 1 is annular, with a hand-held part 3 in the middle or in its axial direction; both ends of the hand-held part 3 are fixedly connected to the fixing part 1. The hand-held part 3 is convenient for the user to hold, so that the user can exercise the hands more effectively.

[0053] A cavity 5 is provided inside the fixed part 1 and surrounds the center of the fixed part 1 . The cavity 5 is in the shape of a circular ring as a whole and provides a path for the rotation of the rotating part 2 .

[0054] An opening 8 is provided on one side of the fixing portion 1 away from its own center. The opening 8 extends around the circumference of the fixing portion 1 to form an overall annular opening 8 . The opening 8 connects the cavity 5 with the outside of the fixing portion 1 .

[0055] The provision of the opening 8 facilitates assembly during the production process, and the counterweight portion 4 can be easily passed through the opening 8, thereby being exposed outside the fixed portion 1. The generally circular opening 8 ensures that the counterweight portion 4 exposed outside the fixed portion 1 can smoothly rotate around the fixed portion 1, thereby allowing the counterweight portion 4 to continuously generate centrifugal force, thereby continuously driving the rotation of the rotating portion 2.

[0056] The rotating part 2 is accommodated in the cavity 5, and the counterweight part 4 is fixedly or detachably connected to the outside of the rotating part 2. After the detachable counterweight part 4 is separated from the rotating part 2, it is convenient for the overall storage and transportation.

[0057] or,

[0058] A counterweight cavity is provided on the outside of the rotating part 2, and a counterweight part 4 is accommodated inside the counterweight cavity. Due to the limitation of the counterweight cavity, there is no relative movement between the counterweight part 4 and the rotating part 2, so that the two can only maintain synchronous movement. This ensures that the counterweight part 4 can smoothly drive the rotating part 2 to rotate. The counterweight part 4 is a counterweight block or a counterweight liquid or a counterweight sand. The counterweight liquid is generally water, but it can also be other liquids. When a hand exercise device with a counter needs to be transported or stored, the water can be poured out first, which can reduce its own weight and make it more convenient to transport or store. When a hand exercise device with a counter needs to be used, water can be injected, which is very convenient and simple.

[0059] The counterweight 4 passes through the opening 8 and is exposed outside the fixed portion 1. Placing the counterweight 4 outside the rotating portion 2 is easier to use and more easily drives the rotating portion 2 to rotate than placing it inside the rotating portion 2. The effect is particularly noticeable when the counterweight 4 is exposed outside the fixed portion 1.

[0060] When the counterweight 4 is swung, centrifugal force is generated and drives the rotating part 2 to rotate along the path in the cavity 5. At this time, the counterweight 4 itself will revolve around the circumference of the fixed part 1.

[0061] An accommodating chamber is provided on the inner wall of the cavity 5 , and a power assisting device is provided in the accommodating chamber; the power assisting device abuts against the outer wall surface of the rotating part 2 .

[0062] The power assist device includes a fixed shaft, both ends of which are fixed in the accommodating cavity, and a roller 6 is sleeved on the outer ring of the fixed shaft, and the roller 6 abuts against the outer wall surface of the rotating part 2.

[0063] or,

[0064] The power assist device includes a ball (not shown in the figure), which is accommodated in the accommodating cavity and abuts against the outer wall surface of the rotating part 2.

[0065] Whether it is the setting of the roller 6 or the setting of the ball, the contact area between the outer wall of the rotating part 2 and the inner wall of the cavity 5 can be reduced, thereby reducing the corresponding friction resistance, and then the rotating part 2 can rotate smoothly and fluently along the path in the cavity 5 when rotating.

[0066] During production, the fixed portion 1 and the handle portion 3 are integrally molded, and the entire assembly is divided into upper and lower sections. During assembly, the upper and lower sections are respectively placed over the upper and lower sides of the rotating portion 2 and secured together using clips or screws. The rotating portion 2 can be integrally molded separately or with the counterweight 4.

[0067] Reference Figures 3 to 5One of the fixed portion 1 and the rotating portion 2 is provided with a first sensing portion, while the other is provided with a second sensing portion. The first sensing portion is one of the sensor 11 and the magnet 12, while the second sensing portion is the other. The placement of the sensor 11 and the magnet 12 can be interchanged. This provides multiple configuration options, conveniently meeting the diverse needs of R&D processes such as design, production, and assembly.

[0068] The first sensing part is a sensor 11, and the sensor 11 is a Hall sensor. The Hall sensor is the most stable and has a relatively low cost, so it has the best cost performance.

[0069] The second sensing part is a magnet 12 ; a sensor 11 is provided on the inner wall surface of the fixed part 1 , and a magnet 12 is provided on the outer wall surface of the rotating part 2 .

[0070] When the rotating part 2 rotates and the magnet 12 moves to the corresponding position of the sensor 11, the sensor 11 generates an induction signal and counts.

[0071] In actual use, the rotating part 2 rotates, driving the magnet 12 on its outer wall to revolve. When the magnet 12 moves to the corresponding position of the sensor 11, the sensor 11 on the inner wall of the fixed part 1 and the magnet 12 on the outer wall of the rotating part 2 are facing each other. Therefore, the two intersect, that is, the first sensing part and the second sensing part intersect at the corresponding position, generating a sensing signal and counting. Therefore, each rotation is counted.

[0072] The sensor 11 is electrically connected to a mainboard 13 with a counting program and a battery; the mainboard 13 is electrically connected to a display screen and / or a voice announcer. The voice announcer is generally a speaker, a radio, etc.

[0073] After the sensor 11 transmits the generated sensing signal to the main board 13, the main board 13 can display the counting information on the display screen through the built-in program for the user to check; or play the counting information through the voice announcer so that the user knows; or display the counting information on the display screen and play it through the voice announcer at the same time, so that the user can not only conveniently check the counting information, but also directly know the counting information through voice playback.

[0074] During actual use, the user first holds the handheld part 3 with his hand, and then makes a small shaking and swinging motion similar to a circular shape. Since there is a counterweight part 4 outside the rotating part 2, the counterweight part 4 will be swung, generating centrifugal force and driving the rotating part 2 to rotate. At this time, the counterweight part 4 itself revolves around the outside of the fixed part 1. As the duration continues to increase, it can play a role in strengthening the user's hands. During this process, every time the rotating part 2 rotates one circle, the sensor 11 and the magnet 12 will intersect once, so that the sensor 11 will generate an induction signal and send the induction signal to the main board 13, which will be counted by the built-in program, and the counting information will be fed back to the user through the display screen or voice announcer.

[0075] Compared to existing exercise equipment, the presence of the counterweight 4 makes this hand exercise device with a counter much easier to use, and easily drives the rotating portion 2 to rotate. Even users with no prior exercise experience, or those with limited arm strength, such as women or children, can easily start and maintain the rotating portion 2, thereby achieving the desired hand exercise effect. Furthermore, users can intuitively access their own exercise information during and after exercise.

[0076] Example 2

[0077] The difference between this embodiment and embodiment 1 is that:

[0078] The number of sensors 11 is greater than or equal to two and they are spaced apart from each other; the number of magnets 12 is one;

[0079] As the rotating unit 2 rotates, the magnet 12 moves past the corresponding position of each sensor 11, generating a sensing signal. After each sensor 11 generates a sensing signal, a count is performed. After completing one count, a new count is performed based on the above situation. This improves counting accuracy and avoids errors.

[0080] In actual use, setting up multiple sensors 11 and magnets 12 for sensing can improve the accuracy of counting and avoid the following situation: after the magnet 12 intersects with a single sensor 11, that is, after counting, it does not continue to move, but returns to its original position or stops, thereby causing counting errors. For example:

[0081] The intersection position is in front of and very close to the starting position of magnet 12's movement. During the last rotation of magnet 12 with rotating part 2, due to inertia, magnet 12 passes the intersection position and generates a count, but does not continue to move and instead stops. This results in a count being generated even though magnet 12 has not completed a full rotation, leading to inaccurate counting information.

[0082] or,

[0083] The number of the sensor 11 is one; the number of the magnets 12 is greater than or equal to two and they are spaced apart from each other;

[0084] As the rotating part 2 rotates, each time a magnet 12 passes the corresponding position of the sensor 11, the sensor 11 generates a sensing signal. When the total number of sensing signals equals the total number of magnets 12, the sensor 11 begins counting again. After completing one count, a new round of counting is performed based on the above situation. This improves counting accuracy and avoids errors.

[0085] In actual use, setting up multiple magnets 12 to sense the sensor 11 can improve the accuracy of counting and avoid the following situation: after a single magnet 12 intersects with the sensor 11 and generates a count, it does not continue to move but returns to its original position or stops, thereby generating a counting error. For example:

[0086] The intersection position is very close to and before the starting position of the movement of the individual magnets 12. During the final rotation of the magnet 12 with the rotating part 2, due to inertia, the magnet 12 passes the intersection position and generates a count, but does not continue to move and instead stops. This results in a count being generated even though the magnet 12 has not completed a full rotation, leading to inaccurate counting information.

[0087] Example 3

[0088] The difference between this embodiment and embodiment 1 is that:

[0089] The setting position of the magnet 12 is swapped with that of the sensor 11.

[0090] The first sensing part is a magnet 12, and the second sensing part is a sensor 11; the magnet 12 is set on the inner wall of the fixed part 1, and the sensor 11 is set on the outer wall of the rotating part 2;

[0091] When the rotating part 2 rotates, the sensor 11 moves to the corresponding position of the magnet 12, and the sensor 11 generates an induction signal and counts.

[0092] In actual use, the rotating part 2 rotates, driving the sensor 11 on its outer wall to revolve. When the sensor 11 moves to the corresponding position of the magnet 12, the magnet 12 on the inner wall of the fixed part 1 and the sensor 11 on the outer wall of the rotating part 2 are facing each other. Therefore, the two intersect, generating a sensing signal and counting. Therefore, each rotation generates a count.

[0093] Example 4

[0094] The difference between this embodiment and embodiment 3 is that:

[0095] The number of magnets 12 is greater than or equal to two and they are spaced apart from each other; the number of sensors 11 is one;

[0096] As the rotating part 2 rotates, the sensor 11 generates a sensing signal each time it passes the corresponding position of each magnet 12. When the total number of sensing signals equals the total number of magnets 12, the sensor 11 counts again. After completing one count, a new round of counting is performed based on the above situation. This improves counting accuracy and avoids errors.

[0097] In actual use, setting up multiple magnets 12 to sense the sensor 11 can improve the accuracy of counting and avoid the following situation: after the sensor 11 intersects with a single magnet 12, that is, after counting, it does not continue to move, but returns to its original position or stops, thereby causing counting errors. For example:

[0098] The intersection position is in front of and very close to the starting position of sensor 11's movement. During the last rotation of sensor 11 with rotating unit 2, due to inertia, sensor 11 passes the intersection position and generates a count, but stops without continuing to move. This results in a count being generated without sensor 11 completing a full rotation, leading to inaccurate count information.

[0099] or,

[0100] The number of the magnet 12 is one; the number of the sensors 11 is greater than or equal to two and they are spaced apart from each other;

[0101] As the rotating part 2 rotates, each sensor 11 generates a sensing signal when it passes the corresponding position of the magnet 12. After each sensor 11 generates a sensing signal, a count is performed. After completing a count, a new count is performed based on the above situation. This improves counting accuracy and avoids errors.

[0102] In actual use, setting up multiple sensors 11 and magnets 12 for sensing can improve the accuracy of counting and avoid the following situation: after a single sensor 11 intersects with the magnet 12 and generates a count, it does not continue to move but returns to its original position or stops, thereby generating a counting error. For example:

[0103] The intersection position is in front of and very close to the starting position of sensor 11's movement. During the last rotation of sensor 11 with rotating unit 2, due to inertia, sensor 11 passes the intersection position and generates a count, but stops without continuing to move. This results in a count being generated without sensor 11 completing a full rotation, leading to inaccurate count information.

[0104] The above description is only a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, directly or indirectly applied in other related technical fields, is also included in the scope of protection of the present invention.

Claims

1. A hand exercise device with a counter, comprising a fixed portion and a rotating portion, wherein the fixed portion is used to form a path and the rotating portion rotates along the path, characterized in that ； One of the fixed part and the rotating part is provided with a first sensing part, and the other is provided with a second sensing part; When the rotating part rotates, the first sensing part and the second sensing part intersect at a corresponding position, and both generate sensing signals and count.

2. A hand exercise device with a counter as claimed in claim 1, characterized in that: The first sensing portion is one of the sensor and the magnet, and the second sensing portion is the other.

3. A hand exercise device with a counter as claimed in claim 2, characterized in that: The first sensing part is a sensor, and the second sensing part is a magnet; the sensor is arranged on the inner wall of the fixed part, and the magnet is arranged on the outer wall of the rotating part; When the rotating part rotates and the magnet moves to the corresponding position of the sensor, the sensor generates an induction signal and counts.

4. A hand exercise device with a counter as claimed in claim 3, characterized in that: The number of sensors is greater than or equal to two and they are spaced apart from each other; the number of magnets is one; When the rotating part rotates and the magnet moves through the corresponding position of each sensor, each sensor generates an induction signal; and after each sensor generates an induction signal, counting is performed.

5. The hand exercise device with counting function as claimed in claim 3, characterized in that: The number of sensors is one; the number of magnets is greater than or equal to two and they are spaced apart from each other; When the rotating part rotates, the sensor generates an induction signal when each magnet moves past the corresponding position of the sensor; when the total number of induction signals equals the total number of magnets, it counts again.

6. The hand exercise device with a counter as claimed in claim 2, characterized in that: The first sensing part is a magnet, and the second sensing part is a sensor; the magnet is arranged on the inner wall of the fixed part, and the sensor is arranged on the outer wall of the rotating part; When the rotating part rotates, the sensor moves to the corresponding position of the magnet, and the sensor generates an induction signal and counts.

7. The hand exercise device with counting function as claimed in claim 6, characterized in that: The number of magnets is greater than or equal to two and they are spaced apart from each other; the number of sensors is one; When the rotating part rotates, the sensor generates an induction signal every time it moves past the corresponding position of each magnet. The sensor counts again when the total number of induction signals equals the total number of magnets.

8. The hand exercise device with a counter as claimed in claim 6, characterized in that: The number of the magnet is one; the number of the sensors is greater than or equal to two and they are spaced apart from each other; When the rotating part rotates, each sensor generates an induction signal when it moves through the corresponding position of the magnet; after each sensor generates an induction signal, it counts.

9. A hand exercise device with a counter as claimed in any one of claims 1 to 8, characterized in that: The sensor is electrically connected to a mainboard with a counting program and a battery; the mainboard is electrically connected to a display screen and / or a voice announcer.

10. A hand exercise device with a counter as claimed in any one of claims 1 to 8, characterized in that: The sensor is a Hall sensor.

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