CN213884884U - Punching dumbbell - Google Patents

Abstract

The utility model provides a sprint dumbbell, which comprises a dumbbell body and a filling assembly, wherein the dumbbell body is provided with at least one accommodating cavity, and the cavity wall of the accommodating cavity comprises a first side wall; the filling assembly is located in the accommodating cavity and comprises a plurality of first filling pieces which are arranged in a dispersed mode, the filling assembly can impact the first side wall when the movement speed of the dumbbell body is changed, and at least two first filling pieces can impact the first side wall. The utility model discloses a fill subassembly can simulate the hand to get rid of the big rope or hit the atress change that the target object brought to the impact force of first lateral wall, makes the user obtain instant mechanics feedback and acoustic feedback simultaneously, has increased the function of dumbbell for the usage of dumbbell is more diversified, does not receive the restriction in place and apparatus, only needs handheld sprint dumbbell just can realize multiple body-building mode, has promoted user experience.

Description

Punching dumbbell

Technical Field

The utility model belongs to the technical field of the fitness equipment, especially, relate to a sprint dumbbell.

Background

With the increasing pressure of life, fitness becomes a healthy and more sought after lifestyle. People often assist fitness equipment in fitness so as to achieve a better exercise effect. The existing dumbbell is used for exercising the muscles of a human body in a load-bearing way, and has single function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sprint dumbbell aims at solving among the prior art technical problem that the dumbbell function is too single.

The utility model discloses a realize like this, a sprint dumbbell, include:

the dumbbell body is provided with at least one accommodating cavity, and the cavity wall of the accommodating cavity comprises a first side wall;

the filling assembly is positioned in the accommodating cavity and comprises a plurality of first filling pieces which are dispersedly arranged, the filling assembly can impact the first side wall when the motion acceleration of the dumbbell body changes, and at least two first filling pieces can impact the first side wall.

In one embodiment, the filling assembly further comprises at least one second filling member, the first filling member and the second filling member have an attraction state of being attracted into a whole, and when the filling assembly impacts the first side wall, the first filling member and the second filling member can move relatively under the action of inertia.

In one embodiment, at least one of the first filling member and the second filling member is a magnetic member, the first filling member and the second filling member have a magnetic attraction state, and the first filling member and the second filling member can be in the attraction state when the impact force applied to the filling member when the filling member impacts the first sidewall is smaller than the magnetic attraction force between the first filling member and the second filling member.

In one embodiment, the first filling member and the second filling member further have a separated state of being separated from each other, and the first filling member and the second filling member can be in the separated state when the impact force applied to the filling assembly when the filling assembly impacts the first side wall is larger than the magnetic attraction force between the first filling member and the second filling member.

In one embodiment, the cavity wall of the accommodating cavity further includes a second side wall, the filling member can impact the first side wall when the dumbbell body moves along the swing shaft and impact the second side wall when the dumbbell body moves along the impact shaft, the first filling member and the second filling member can be in the attraction state when the impact force applied to the filling member when the filling member impacts the second side wall is smaller than the magnetic attraction force between the first filling member and the second filling member, and are in the separation state when the impact force applied to the filling member when the filling member impacts the second side wall is larger than the magnetic attraction force between the first filling member and the second filling member, and the swing shaft and the impact shaft are arranged at an included angle.

In one embodiment, the cavity wall of the accommodating cavity further includes a third sidewall disposed opposite to the first sidewall and a fourth sidewall disposed opposite to the second sidewall, and a distance between the first sidewall and the third sidewall of at least one of the accommodating cavities is smaller than a distance between the second sidewall and the fourth sidewall.

In one embodiment, the accommodating cavities are provided in plurality, the filling assemblies are provided in plurality, and one of the accommodating cavities is filled with one of the filling assemblies.

In one embodiment, the barbed dumbbell further comprises an abutting piece connected to the wall of the accommodating cavity, and the abutting piece can insulate sound or/and cushion the impact force of the filling assembly on the dumbbell body.

In one embodiment, the sprint dumbbell further comprises a motion sensor arranged on the dumbbell body and used for collecting motion parameters.

In one embodiment, the dumbbell body is provided with a handheld part and a supporting part connected with the handheld part, and the supporting part is magnetic.

The utility model discloses technical effect for prior art is: this sprint dumbbell is through setting up the packing subassembly in the holding intracavity for the user can strike first lateral wall under the inertia effect when handheld dumbbell body sways, goes out actions such as fist, and the packing subassembly can simulate the hand to get rid of big rope or hit the atress change that the target object brought to the impact force of first lateral wall, makes the user obtain instant mechanics feedback and acoustic feedback simultaneously, has improved user experience. The at least two first filling pieces of the filling assembly can impact the first side wall, so that when different first filling pieces impact the first side wall at different time, mechanical feedback obtained by a user is more hierarchical, and stress change during movement is simulated. It can be seen that the utility model discloses the function of dumbbell has been increased for the usage of dumbbell is more diversified, does not receive the restriction in place and apparatus, only needs handheld sprint dumbbell just can realize multiple body-building mode.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structure diagram of a sprint dumbbell provided by the embodiment of the present invention;

fig. 2 is a sectional view of the sprint dumbbell of fig. 1.

Description of reference numerals:

10. a dumbbell body; 101. an accommodating cavity; 1011. a first side wall; 1012. a second side wall; 1013. a third side wall; 1014. a fourth side wall; 11. a hand-held portion; 12. a support portion; 20. a fill assembly; 21. a first filling member; 22. a second filling member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 and 2, the present invention provides a punching dumbbell, which includes a dumbbell body 10 and a filling assembly 20.

Referring to fig. 2, the dumbbell body 10 is provided with at least one accommodating cavity 101, the accommodating cavity 101 may be in any shape, and the cavity wall of the accommodating cavity 101 includes a first side wall 1011. The dumbbell body 10 can be held by a user or held by other auxiliary objects, so that the user can conveniently carry out weight-bearing exercise. The dumbbell body 10 may be made of metal material, or may be made of compound, polymer or other materials, such as resin material.

Referring to fig. 2, the filling element 20 is located in the accommodating cavity 101, that is, the accommodating cavity 101 is filled with the filling element 20, wherein the accommodating cavity 101 is not filled with the filling element 20, and the filling element 20 can move freely in the accommodating cavity 101. The filling assembly 20 includes a plurality of first filling members 21 disposed dispersedly, the filling assembly 20 can hit the first side wall 1011 when the moving speed of the dumbbell body 10 is changed, wherein at least two first filling members 21 can hit the first side wall 1011. In this embodiment, the first filling member 21 is a metal member or a magnetic member, such as steel grit. The first filling members 21 may be spheres, and the sizes of the first filling members 21 may be the same or different from each other. In other embodiments, the first filling member 21 may also be an adhesive member, an object that can be elastically or plastically deformed. The speed change can be the increase and decrease of the movement speed, or the change of the movement direction, etc. The above-mentioned motions capable of causing a change in speed include swinging, punching, and the like. When the dumbbell body 10 is accelerated, the filling assembly 20 can be driven to move synchronously, and when the dumbbell body 10 is decelerated or changes direction, the filling assembly 20 still continues to move in the accommodating cavity 101 along the acceleration direction under the action of inertia until the first side wall 1011 is impacted. At least two first filling members 21 can hit the first side wall 1011, i.e. the area of the first side wall 1011 is at least larger than the maximum length of the two first filling members 21.

Get rid of big rope and boxing is common body-building mode, and people carry out the training of arm through getting rid of the rope of standing about fast when getting rid of big rope. But get rid of big rope and need prepare the rope, still will occupy very big place, people need prepare sand bag and boxing gloves during the boxing, and based on the restriction of place and apparatus, people can only take exercise in the gymnasium, have certain limitation, bring a great deal of inconvenience to the body-building process. This sprint dumbbell is through setting up filling assembly 20 in holding chamber 101 for the user sways, goes out when action such as fist at handheld dumbbell body 10, and filling assembly 20 can strike first lateral wall 1011 under the inertial action, and filling assembly 20 can simulate the hand to get rid of the big rope or hit the atress change that the target object brought to the impact force of first lateral wall 1011, makes the user obtain instant mechanics feedback and sound feedback simultaneously, has improved user experience. The at least two first filling members 21 of the filling assembly 20 can hit the first side wall 1011, so that the mechanical feedback obtained by the user is more hierarchical when different first filling members 21 hit the first side wall 1011 at different times, so as to simulate the stress variation during the exercise. It can be seen that the utility model discloses the function of dumbbell has been increased for the usage of dumbbell is more diversified, does not receive the restriction in place and apparatus, only needs handheld sprint dumbbell just can realize multiple body-building mode, has promoted user experience.

Referring to fig. 2, in the present embodiment, the accommodating chamber 101 is a square body, the chamber walls of the accommodating chamber 101 further include a second sidewall 1012, a third sidewall 1013 opposite to the first sidewall 1011, and a fourth sidewall 1014 opposite to the second sidewall 1012, that is, the first sidewall 1011, the second sidewall 1012, the third sidewall 1013, and the fourth sidewall 1014 are enclosed to form a quadrangle, so that when the user swings the sprint dumbbell, the filling assembly 20 can impact the first sidewall 1011, the second sidewall 1012, the third sidewall 1013, or the fourth sidewall 1014 according to the variation of the motion acceleration. Optionally, the first sidewall 1011, the second sidewall 1012, the third sidewall 1013, and the fourth sidewall 1014 are collectively configured as a square, such as a rectangle or a square, so as to uniformly apply force to the opposing walls of the receiving chamber 101. In other embodiments, the accommodating cavity 101 may also be oval, polygonal, irregular, etc.

Referring to fig. 2, the filling assembly 20 further includes at least one second filling member 22, the first filling member 21 and the second filling member 22 have an attraction state of being attracted into a whole, and when the filling assembly 20 impacts the first sidewall 1011, the first filling member 21 and the second filling member 22 can move relatively under the inertia effect. When the first filling member 21 and the second filling member 22 are in the suction state, the first filling member 21 and the second filling member 22 are combined into a whole, but because the first filling member 21 and the second filling member 22 are combined in an independent and dispersed structure, when the filling assembly 20 impacts the first side wall 1011, a relative movement can be generated under the action of inertia force, and when the filling assembly 20 is seen from the whole filling assembly 20, the filling assembly 20 is deformed to a certain extent. At this moment, the first filling pieces 21 can impact the first side wall 1011 at different time points, so that the impact force has certain hierarchy, a user can feel stress variation, the user experience is improved, and meanwhile, the stress variation can buffer the impact force, and the risk of muscle strain of the user is reduced. The first filling member 21 and the second filling member 22 may be attracted together by magnetic force, electric force, or other attractive force.

In the embodiment, the first filling member 21 and the second filling member 22 are magnetically attracted, and the plurality of first filling members 21 are magnetically attracted to the second filling member 22. At least one of the first filling member 21 and the second filling member 22 is a magnetic member, and the other is a magnetic member or a metal.

The first filling member 21 and the second filling member 22 have a magnetic attraction state, and the first filling member 21 and the second filling member 22 can be in the attraction state when the impact force applied to the filling assembly 20 when the filling assembly hits the first sidewall 1011 is smaller than the magnetic attraction force between the first filling member 21 and the second filling member 22. In this embodiment, the first filler 21 is a metal ball, the second filler 22 is a permanent magnet, and the plurality of first fillers 21 can be attracted to the second filler 22 by the magnetic attraction of the second filler 22. It can be understood that, when the absolute value of the acceleration of the dumbbell body 10 of the filling assembly 20 is smaller than the preset value, the generated impact force can be smaller than the magnetic attraction force between the first filling member 21 and the second filling member 22, that is, when the speed of the dumbbell body 10 does not change much, the first filling member 21 and the second filling member 22 can still be in the attraction state even if being impacted, and the filling assembly 20 can only be deformed integrally, or can not be deformed.

The first and second filling members 21 and 22 also have a separated state in which they are separated from each other, and the first and second filling members 21 and 22 can be in the separated state when the impact force applied to the filling assembly 20 when it strikes the first side wall 1011 is greater than the magnetic attraction force between the first and second filling members 21 and 22. It can be understood that, the impact force generated by the filling assembly 20 when the absolute value of the acceleration of the dumbbell body 10 is greater than the preset value can be greater than the magnetic attraction force between the first filling member 21 and the second filling member 22, that is, when the speed of the dumbbell body 10 changes rapidly, the first filling member 21 and the second filling member 22 can be separated when being impacted, and the separation can be separation from the magnetic attraction force or separation from the magnetic attraction force. The preset value is related to the magnetic attraction force between the first filling piece 21 and the second filling piece 22, the adjustment of the preset value can be realized by replacing the second filling piece 22 with different magnetic attraction forces or the first filling piece 21 with different gravity, and the user can replace the filling assembly 20 according to different training requirements.

The filling assembly 20 is capable of striking the first side wall 1011 when the dumbbell body 10 moves along the swing axis and striking the second side wall 1012 when it moves along the impact axis, that is, the line between the first side wall 1011 and the third side wall 1013 is parallel to the swing axis and the line between the second side wall 1012 and the fourth side wall 1014 is parallel to the impact axis. The first filling member 21 and the second filling member 22 can be in an attraction state when the impact force received by the filling assembly 20 when the filling assembly 20 impacts the second sidewall 1012 is smaller than the magnetic attraction force between the first filling member 21 and the second filling member 22, and are in a separation state when the impact force received by the filling assembly 20 when the filling assembly 20 impacts the second sidewall 1012 is larger than the magnetic attraction force between the first filling member 21 and the second filling member 22, and the swing shaft and the impact shaft are arranged at an included angle. The principle of the filling member 20 impacting the second side wall 1012 is the same as that of the first side wall 1011, and is not described here in detail.

In the present embodiment, the extending direction of the arm may be taken as the impact axis, the direction perpendicular to the extending direction of the arm may be taken as the swing axis, the swing axis may be taken as the up-down direction, and the impact axis may be taken as the front-rear direction.

When the user swings the dumbbell body 10 in the up-and-down direction, the filling member 20 can strike the first sidewall 1011 and the third sidewall 1013, for example, the first sidewall 1011 is struck, when the user swings faster, the absolute value of the acceleration is also large, when the absolute value of the acceleration is larger than the preset value, the impact force of the filling assembly 20 on the first side wall 1011 is larger than the magnetic attraction force between the first filling member 21 and the second filling member 22, the first filling member 21 and the second filling member 22 can be switched to the separated state, that is, the filling member 20 is broken, the plurality of first filling members 21 can hit the first sidewall 1011 at different time points, and due to the magnetic attraction between the first filling members 21 and the second filling members 22, so that the distance interval between the plurality of first filling members 21 is small even in the separated state of the filling assembly 20 and the impact has continuity, thereby allowing the user to obtain the fluid force experience. This kind of exercise mode can simulate the motion process of getting rid of the standing rope, and need not to prepare place and rope, can take exercise at home, and convenient to use can require to change filling component 20 according to the training of difference. This exercise pattern can increase muscle recruitment and enhance the stability of the deep muscles by using fluidity.

When a user punches a hand by holding the dumbbell body 10 forward, taking the second side wall 1012 in front of the fourth side wall 1014 as an example, the user stops moving the dumbbell body 10 temporarily after punching, the filling component 20 can impact the second side wall 1012, because the speed of the user when punching is low, the speed change is not large when the dumbbell body 10 stops moving, that is, the absolute value of the acceleration is also low, if the absolute value is lower than the preset value, the impact force of the filling component 20 on the second side wall 1012 can be made smaller than the magnetic attraction force between the first filling component 21 and the second filling component 22, the first filling component 21 and the second filling component 22 can be always in the attraction state, that is, the first filling component 21 is always 1012 in a whole body, when the filling component 20 impacts the second side wall, the impact force is short, strong and violent, so that the user can obtain the force experience of hitting a target object, the force process during punching is well simulated, and meanwhile, the impact sound feedback can be provided for the user by the impact sound of the filling component 20 on the dumbbell body 10, the user experience is improved.

Referring to fig. 2, a plurality of accommodating cavities 101 may be provided, a plurality of filling assemblies 20 are also provided, and one accommodating cavity 101 is filled with one filling assembly 20. The effect that sets up a plurality of holding chamber 101 and fill subassembly 20 and can strengthen the striking to satisfy the different demands of user, promote user experience. In this embodiment, the dumbbell body 10 is provided with three accommodating cavities 101, the accommodating cavities 101 are arranged at intervals, the number of the filling assemblies 20 can be three, and one accommodating cavity 101 is filled with one filling assembly 20.

The distance between the first sidewall 1011 and the third sidewall 1013 of the at least one accommodating cavity 101 is smaller than the distance between the second sidewall 1012 and the fourth sidewall 1014. That is to say, the up-down distance of at least one accommodating cavity 101 is less than the front-back distance thereof, so that when the user swings the dumbbell body 10 up and down, the filling assembly 20 in the accommodating cavity 101 moves up and down, and when the impact force of the filling assembly 20 is greater than the magnetic attraction force between the first filling member 21 and the second filling member 22, the dispersed filling assembly 20 is not enough to be attracted again in a short distance to be a whole, that is, is not enough to be switched to an attraction state again, so that the flowing experience in the impact process is enhanced. When a user holds the dumbbell body 10 to punch a fist, the filling group in the accommodating cavity 101 moves forwards, when the impact force of the filling component 20 is smaller than the magnetic attraction force between the first filling part 21 and the second filling part 22, the filling component 20 can be in an attraction state in the movement process in the accommodating cavity 101, so that the second side wall 1012 is integrally impacted, the longer front-back distance provides enough flight distance for the filling component 20 in the accommodating cavity 101, the user obtains larger and stronger stress feedback and sound feedback, and the user instant experience is improved.

In the present embodiment, three receiving cavities 101 are sequentially arranged along the swinging axis, wherein the distance between the first side wall 1011 and the third side wall 1013 of the receiving cavity 101 at two ends is smaller than the distance between the second side wall 1012 and the fourth side wall 1014, and the distance between the first side wall 1011 and the third side wall 1013 of the receiving cavity 101 in the middle is larger than the distance between the second side wall 1012 and the fourth side wall 1014, so as to enhance the force feedback during the swinging training and the impact experience during the punch.

Referring to fig. 1 and 2, in particular, the dumbbell body 10 has a handheld portion 11 and a supporting portion 12 connected to the handheld portion 11, the user can exercise by holding the handheld portion 11, and the supporting portion 12 can be provided with a supporting surface, so that the user can stably support on a supporting surface, for example, the supporting surface can support on the ground to perform push-up. The user can each hold a sprint dumbbell with both hands when taking exercise, and preferably, supporting part 12 has magnetism, can be with two supporting part 12 actuation relatively if taking exercise and finish to accomodate. The two punching dumbbells can be symmetrically arranged, the supporting part 12 of one punching dumbbell is provided with magnetism, and the other punching dumbbell is made of metal materials, or the supporting parts 12 of the two punching dumbbells are provided with magnetism. In the embodiment, the handle 11 is in a shape of a stick and extends along the swing axis, and the handle 11 further has an anti-slip surface for a user to hold, and the shape of the handle meets the ergonomic requirement of hand holding. The accommodating cavity 101 in the middle of the three accommodating cavities 101 may be located in the handheld portion 11.

Preferably, the sprint dumbbell is still including connecting in the laminating piece in the chamber wall of holding chamber 101, and this laminating piece covers the chamber wall of holding chamber 101, and it can be made for sound insulation material to give sound insulation to the impact sound, also can make for cushioning material, with the impact force of buffering filling assembly 20 to dumbbell body 10, this laminating piece still can have concurrently give sound insulation and the function of bradyseism.

In order to facilitate the user to view the training data, the sprint dumbbell further comprises a motion sensor arranged on the dumbbell body 10 and used for collecting motion parameters. During the training process or after the training is completed, the motion parameters of the heart rate, the punch times and speed, the swing times and speed, the calorie consumption, the exercise duration and the like of the user can be collected through the motion sensor, so that the exercise intensity is visualized.

The foregoing is only a preferred embodiment of the present invention, and the technical principles of the present invention have been specifically described, and the description is only for the purpose of explaining the principles of the present invention, and should not be construed as limiting the scope of the present invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are intended to be included within the protection scope of the invention.

Claims (10)

1. A sprint dumbbell, comprising:

the dumbbell body is provided with at least one accommodating cavity, and the cavity wall of the accommodating cavity comprises a first side wall;

the filling assembly is positioned in the accommodating cavity and comprises a plurality of first filling pieces which are dispersedly arranged, the filling assembly can impact the first side wall when the movement speed of the dumbbell body is changed, and at least two first filling pieces can impact the first side wall.

2. The sprint dumbbell of claim 1, wherein the filling assembly further includes at least one second filling member, the first filling member and the second filling member have an engagement state in which they are engaged as a unit, and the first filling member and the second filling member are relatively movable by inertia when the filling assembly strikes the first sidewall.

3. The sprint dumbbell of claim 2, wherein at least one of the first filling member and the second filling member is a magnetic member, the first filling member and the second filling member have a magnetically attracting attraction state, and the first filling member and the second filling member are capable of being in the attraction state when the filling assembly impacts the first sidewall with an impact force that is less than the magnetic attraction force between the first filling member and the second filling member.

4. The sprint dumbbell of claim 3, wherein the first filling member and the second filling member further have a separated state in which they are separated from each other, and the first filling member and the second filling member can be in the separated state when the filling assembly strikes the first sidewall with an impact force greater than a magnetic attraction force between the first filling member and the second filling member.

5. The sprint dumbbell of claim 4, wherein the cavity wall of the receiving cavity further includes a second side wall, the filling member can strike the first side wall when the dumbbell body moves along the swinging axis and strike the second side wall when the dumbbell body moves along the striking axis, the first filling member and the second filling member can be in the attraction state when the impact force applied to the filling member when the filling member strikes the second side wall is smaller than the magnetic attraction force between the first filling member and the second filling member, and can be in the separation state when the impact force applied to the filling member when the filling member strikes the second side wall is larger than the magnetic attraction force between the first filling member and the second filling member, and the swinging axis and the striking axis are disposed at an included angle.

6. The sprint dumbbell of claim 5, wherein the cavity walls of the receiving cavity further include a third sidewall disposed opposite the first sidewall and a fourth sidewall disposed opposite the second sidewall, and wherein a distance between the first sidewall and the third sidewall of at least one of the receiving cavities is less than a distance between the second sidewall and the fourth sidewall.

7. The sprint dumbbell of any one of claims 1 to 6, wherein there are a plurality of the receiving chambers, a plurality of the filling members are provided, and one of the receiving chambers is filled with one of the filling members.

8. The sprint dumbbell of any one of claims 1 to 5, further comprising an abutment member attached to the wall of the receiving cavity, the abutment member being capable of dampening sound or/and cushioning the impact of the filler assembly on the dumbbell body.

9. The sprint dumbbell of any one of claims 1 to 5, further comprising a motion sensor provided to the dumbbell body for collecting motion parameters.

10. The sprint dumbbell of any one of claims 1 to 5, wherein the dumbbell body has a hand-held portion and a support portion connected to the hand-held portion, the support portion having magnetism.

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