CN213884883U - Punching dumbbell - Google Patents

Abstract

The utility model provides a sprint dumbbell, which comprises a dumbbell body and a filling mechanism, wherein the dumbbell body is provided with at least one accommodating cavity, and the cavity wall of the accommodating cavity comprises an impact surface; the filling mechanism is positioned in the accommodating cavity and can impact the impact surface when the movement speed of the dumbbell body changes and deform when impacting the impact surface. The filling mechanism deforms, the gravity center of the filling mechanism moves towards the impact surface in the deformation process of the filling mechanism, and the impact force of the filling mechanism on the impact surface can simulate the stress change caused by movement of a throwing rope and the like, so that a user can obtain the mechanical feedback of mobility, and the user experience is improved. 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.

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 an impact surface;

and the filling mechanism is positioned in the accommodating cavity, can impact the impact surface when the movement speed of the dumbbell body is changed, and deforms when impacting the impact surface.

In one embodiment, the filling mechanism is capable of elastic or plastic deformation upon impact with the impact surface.

In one embodiment, the filling mechanism comprises a wrapping bag and a filling fluid, the wrapping bag is made of a flexible material and has a bag cavity, and the filling fluid is filled in the bag cavity.

In one embodiment, the filling mechanism further comprises a filling solid located within the capsule, the filling solid being movable within the capsule.

In one embodiment, the filling solid comprises at least one first filling member and at least one second filling member, and the first filling member and the second filling member have an attraction state of being attracted into a whole.

In one embodiment, the dumbbell body is provided with a handheld part for being held by a hand and a supporting part connected with the handheld part, and the supporting part is provided with a supporting plane.

In one embodiment, the support portion is magnetic.

In one embodiment, the number of the accommodating cavities is three, and the filling mechanism is filled in each accommodating cavity.

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 mechanism 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.

The utility model discloses technical effect for prior art is: this spurt dumbbell is through setting up the filling mechanism in the holding intracavity, make the user hand dumbbell body and sway, go out when action such as fist, filling mechanism can strike to the striking face under the inertial action, filling mechanism takes place to warp this moment, at the in-process that filling mechanism takes place to warp, filling mechanism's focus moves towards the striking face, filling mechanism can simulate the atress change that motion such as getting rid of the rope and bring to the impact force of striking face, make the user obtain mobile mechanical feedback, user experience has been improved. 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. an impact surface; 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 filling mechanism; 21. wrapping the leather bag; 22. a fill fluid; 23. filling solids; 231. a first filling member; 232. 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 mechanism 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 an impact surface 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 mechanism 20 is located in the accommodating cavity 101, that is, the accommodating cavity 101 is filled with the filling mechanism 20, wherein the accommodating cavity 101 is not filled with the filling mechanism 20, and the filling mechanism 20 can move freely in the accommodating cavity 101. The filling mechanism 20 can strike the striking surface 1011 when the movement speed of the dumbbell body 10 changes, and can deform when striking the striking surface 1011. 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 mechanism 20 can be driven to move synchronously, and when the dumbbell body 10 is decelerated or changes direction, the filling mechanism 20 still continues to move in the accommodating cavity 101 along the acceleration direction under the action of inertia until the impact surface 1011 is impacted.

Specifically, the filling mechanism 20 can be elastically or plastically deformed when it strikes the striking surface 1011. In the present embodiment, it is preferable that the filling mechanism 20 is plastically deformed when it strikes the striking surface 1011, and the center of gravity is gradually moved toward the striking surface 1011, and in this case, the contact area between the filling mechanism 20 and the striking surface 1011 may be increased or may not be changed.

Get rid of big rope is common body-building mode, and people carry out the training of arm through getting rid of the standing rope about fast. But get rid of big rope and need prepare the rope, still occupy very big place, 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 mechanism 20 in holding chamber 101 for the user is when handheld dumbbell body 10 sways, goes out actions such as fist, and filling mechanism 20 can strike to striking face 1011 under the inertial action, and filling mechanism 20 takes place to warp this moment. In the process that the filling mechanism 20 deforms, the gravity center of the filling mechanism 20 moves towards the impact surface 1011, the force applied by the filling mechanism 20 to the impact surface 1011 is progressively increased, and the impact force of the filling mechanism 20 to the impact surface 1011 can simulate the stress change caused by the movement of throwing a rope and the like, so that a user obtains the mechanical feedback of the flowability, and the user experience is improved. 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.

The filling mechanism 20 may be a solid body such as plasticine, rubber ball, etc., or may be a combination of various structures. In the present embodiment, referring to fig. 2, the filling mechanism 20 includes a wrapping bag 21 and a filling fluid 22, the wrapping bag 21 is a wrapping bag 21 made of a flexible material, such as a rubber bag or a plastic bag, the wrapping bag 21 has a bag cavity, and the filling fluid 22 fills the bag cavity. Fill fluid 22 may be a liquid, which may be water, a solution, an oil, or other viscous fluid, or the like, or a combination of both, i.e., the liquid does not fill the bladder cavity. This allows the filling mechanism 20 to have a greater flowability, which provides a more pronounced flowability-bearing experience for the user.

Referring to fig. 2, the filling mechanism 20 may further include a filling solid 23, and the filling solid 23 can move along with the movement of the filling mechanism 20. The filler solid 23 may be a metallic or magnetic member, such as steel grit. In this case, the filling solid bodies 23 may be spheres, and the size of each filling solid body 23 may be the same or different from that of at least two first filling members 231. The filling solid 23 may also be an adhesive, an elastically or plastically deformable object. The filling solid 23 may be insoluble in the fluid or soluble in the fluid under certain conditions, for example, when the acceleration is greater than or less than a specific value, the filling solid 23 may be suspended in the fluid or may be a heavy object with a density greater than that of the fluid. When the filling solid 23 is a heavy object with a density greater than that of the fluid, the filling solid 23 may impact the impact surface 1011 through the wrapping bag 21 to increase the impact feeling on the basis of the fluidity, so that the user can obtain instant mechanical feedback and sound feedback, thereby improving the user experience. Wherein, filling fluid 22 can play the cushioning effect to filling solid 23, has reduced filling solid 23 to the vibrations influence of dumbbell body 10. The parcel leather bag 21 can make filling fluid 22 more have an organic whole nature, and the focus is more concentrated, compares in not setting up parcel leather bag 21, and the striking sense of this scheme is stronger, has improved the experience sense that the user obtained instant feedback.

Referring to fig. 2, in the present embodiment, the accommodating cavity 101 is a square, the striking surface 1011 is a first side wall, the cavity wall of the accommodating cavity 101 further includes a second side wall 1012, a third side wall 1013 opposite to the striking surface 1011, and a fourth side wall 1014 opposite to the second side wall 1012, that is, the striking surface 1011, the second side wall 1012, the third side wall 1013, and the fourth side wall 1014 surround together to form a quadrangle, and when the user swings the sprint dumbbell, the filling mechanism 20 can strike the striking surface 1011, the second side wall 1012, the third side wall 1013, or the fourth side wall 1014 according to the change of the motion acceleration. Optionally, the second side wall 1012, the third side wall 1013 and the fourth side wall 1014 of the impact surface 1011 are formed in a square shape, such as a rectangle or a square, so as to uniformly apply force to the opposite walls of the receiving cavity 101. In other embodiments, the accommodating cavity 101 may also be oval, polygonal, irregular, etc.

Referring to fig. 2, preferably, the filling solid 23 may include at least one first filling member 231 and at least one second filling member 232, and both the first filling member 231 and the second filling member 232 may be metal members or magnetic members, such as steel grit. The first filling members 231 may be spheres, and the sizes of the first filling members 231 may be the same or at least two first filling members 231 may be different. In other embodiments, the first and second filling members 231 and 232 may also be adhesive members, or objects that can be elastically or plastically deformed. When the filling mechanism 20 strikes the impact surface 1011, the first filling member 231 and the second filling member 232 can move relatively by inertia. In this embodiment, the first filling member 231 and the second filling member 232 have an engaging state that engages as a whole. When the first filling member 231 and the second filling member 232 are in an attraction state, the first filling member 231 and the second filling member 232 are combined into a whole, but because the first filling member 231 and the second filling member 232 are combined in an independent and dispersed structure, when the filling solid 23 impacts the impact surface 1011, the filling solid 23 can move relatively under the action of inertia force, and the filling solid 23 can also deform to some extent as seen from the whole filling solid 23. At this moment, the first filling members 231 can impact the impact surface 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 231 and the second filling member 232 may be attracted together by magnetic force, electric force, or other attractive force.

In this embodiment, the first filling member 231 and the second filling member 232 are magnetically attracted, and the plurality of first filling members 231 and the second filling member 232 are magnetically attracted. At least one of the first filling member 231 and the second filling member 232 is a magnetic member, and the other is a magnetic member or a metal.

The first filling member 231 and the second filling member 232 have a magnetic attraction state, and the first filling member 231 and the second filling member 232 can be in the attraction state when the impact force applied to the filling solid 23 impacting the impact surface 1011 is smaller than the magnetic attraction force between the first filling member 231 and the second filling member 232. In this embodiment, the first filling members 231 are metal balls, the second filling members 232 are permanent magnets, and the plurality of first filling members 231 are all capable of being attracted to the second filling members 232 under the magnetic attraction of the second filling members 232. It can be understood that the impact force generated by the solid filler 23 when the absolute value of the acceleration of the dumbbell body 10 is smaller than the preset value can be smaller than the magnetic attraction force between the first filler 231 and the second filler 232, that is, when the speed of the dumbbell body 10 does not change much, the first filler 231 and the second filler 232 can still be in the attraction state even if being impacted, and the solid filler 23 may only be deformed integrally or not deformed.

The first and second filling members 231 and 232 also have a separated state in which they are separated from each other, and the first and second filling members 231 and 232 can be in the separated state when the impact force applied when the filling solid 23 strikes the impact surface 1011 is greater than the magnetic attraction force between the first and second filling members 231 and 232. It can be understood that the impact force generated by the solid filler 23 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 filler 231 and the second filler 232, that is, when the speed of the dumbbell body 10 changes rapidly, the first filler 231 and the second filler 232 can be separated when being impacted, and the separation can be separation which is separated from the magnetic attraction force, and also can be separation which is not separated from the magnetic attraction force. The above-mentioned default value is relevant with the magnetic attraction between first filler 231 and the second filler 232, and the regulation accessible of the size of default value is changed the second filler 232 of different magnetic attraction or the first filler 231 of different gravity and is realized, and the user can change the packing solid 23 according to the training requirement of self difference. However, because the hydraulic pressure or the pneumatic pressure of the filling fluid 22 is higher than that of a sprint dumbbell in which only the filling solid 23 is disposed without the filling fluid 22, the filling solid 23 has a larger preset value that needs to be reached to obtain the acceleration of the dumbbell body 10 in the separated state, and therefore, in the present embodiment, the filling solid 23 can provide stronger instant force feedback and impact feeling.

The solid filler 23 is capable of striking the striking face 1011 when the dumbbell body 10 moves along the swing axis and striking the second side wall 1012 when moving along the impact axis, that is, the line between the striking face 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 231 and the second filling member 232 can be in an attraction state when the impact force received when the filling solid 23 impacts the second sidewall 1012 is smaller than the magnetic attraction force between the first filling member 231 and the second filling member 232, and are in a separation state when the impact force received when the filling solid 23 impacts the second sidewall 1012 is larger than the magnetic attraction force between the first filling member 231 and the second filling member 232, and the swing shaft and the impact shaft are arranged at an included angle. The principle of the filled solid 23 striking the second side wall 1012 is the same as that striking the striking face 1011 and is not described in detail here.

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 a user swings the dumbbell body 10 in the up-down direction, the wrapping bag 21 can drive the filling fluid 22 and the filling solid 23 to impact the impact surface 1011 or the third side wall 1013, taking the impact surface 1011 as an example, when the user swings at a high speed, the absolute value of the acceleration is large, when the absolute value of the acceleration is larger than a preset value, the impact force of the filling solid 23 on the impact surface 1011 can be made larger than the magnetic attraction between the first filling member 231 and the second filling member 232, the first filling member 231 and the second filling member 232 are switched to the separated state, that is, the filling solid 23 is scattered, the plurality of first filling members 231 can impact the impact surface 1011 at different time points, and due to the magnetic attraction between the first filling member 231 and the second filling member 232, even if the filling solid 23 is in the separated state, the distance interval between the plurality of first filling members 231 is small, and the impact has continuity, thereby enabling the user to obtain a better fluid force experience. This exercise mode simulates the motion of a swing rope, without the need to prepare the field and rope, at home, the exercise can be performed, and the fluid 22 can be changed according to different training requirements. 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 sidewall 1012 in front of the fourth sidewall 1014 as an example, the user stops moving the dumbbell body 10 temporarily after punching, the filling fluid 22 and the filling solid 23 can both impact the second sidewall 1012, because the speed of the user when punching is stopped 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 solid 23 on the second sidewall 1012 can be made smaller than the magnetic attraction force between the first filling part 231 and the second filling part 232, the first filling part 231 and the second filling part 232 can be always in an attraction state, that is, the first filling part 231 is always an integral body, and when the filling mechanism 20 impacts the second sidewall 1012, the impact force is short, rapid and violent, so that the user can obtain the force experience of hitting the target object, and well simulate the force process of punching, meanwhile, the impact sound of the filling solid 23 on the dumbbell body 10 can provide sound feedback for a user, and user experience is improved. Fill fluid 22 now acts as a buffer for fill solids 23.

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.

Referring to fig. 2, a plurality of accommodating cavities 101 may be provided, and each accommodating cavity 101 is filled with a filling mechanism 20. Set up the effect that a plurality of holding chambeies 101 can strengthen mobility and 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, and the accommodating cavities 101 are arranged at intervals. Preferably, at least two of the accommodating cavities 101 have different extending directions, so as to meet the requirement of mobility of a user during swing training in different directions.

Optionally, the three accommodating chambers 101 are sequentially arranged along the swing axis, wherein the accommodating chamber 101 in the middle extends along the swing axis, and the two accommodating chambers 101 respectively located at the two ends extend perpendicular to the swing axis. That is to say. The distance between the striking surface 1011 of the receiving chamber 101 and the third sidewall 1013 is smaller at both ends than between the second sidewall 1012 and the fourth sidewall 1014, and the distance between the striking surface 1011 of the receiving chamber 101 and the third sidewall 1013 is larger at the middle than between the second sidewall 1012 and the fourth sidewall 1014.

If the user swings up and down, the up-down distance of the two accommodating cavities 101 is smaller than the front-back distance of the two accommodating cavities, so that when the user swings the dumbbell body 10 up and down, the wrapping leather bag 21 in the accommodating cavity 101 drives the filling fluid 22 and the filling solid 23 to move up and down, the filling fluid 22 is easily shaken and scattered in a short distance, and when the impact force of the filling mechanism 20 is larger than the magnetic attraction force between the first filling piece 231 and the second filling piece 232, the scattered filling solid 23 is not enough to be attracted into a whole again in a short distance, namely, the attraction state is not enough to be switched into again, and the flowing experience in the later impact process is enhanced. When a user holds the dumbbell body 10 to punch a fist, the filling mechanism 20 in the accommodating cavity 101 moves forwards, when the impact force of the filling solid 23 is smaller than the magnetic attraction force between the first filling piece 231 and the second filling piece 232, the filling solid 23 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 is also enough flying distance for the filling mechanism 20 in the accommodating cavity 101, the filling solid 23 can integrally apply force to the second side wall 1012, so that the user obtains larger and stronger stress feedback and sound feedback, and the user instant experience is improved. The distance is less than upper and lower distance around the holding chamber 101 in the middle of, is the same with the principle of above-mentioned holding chamber 101, nevertheless can strengthen the atress feedback when rocking the training to promote the striking and experience when going out the fist.

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 mechanism 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 an impact surface;

and the filling mechanism is positioned in the accommodating cavity, can impact the impact surface when the movement speed of the dumbbell body is changed, and deforms when impacting the impact surface.

2. The sprint dumbbell of claim 1, wherein the filling mechanism is capable of elastic or plastic deformation upon impact with the impact surface.

3. The sprint dumbbell of claim 1, wherein the filling mechanism includes a wrapping bladder and a filling fluid, the wrapping bladder is made of a flexible material and has a bladder cavity, and the filling fluid fills the bladder cavity.

4. The sprint dumbbell of claim 3, wherein the filling mechanism further comprises a solid fill located within the bladder cavity, the solid fill being movable within the bladder cavity.

5. The sprint dumbbell of claim 4, wherein the filling solid includes at least one first filling member and at least one second filling member, and the first filling member and the second filling member have an engagement state in which they are engaged as a whole.

6. The sprint dumbbell of any one of claims 1 to 5, wherein the dumbbell body has a hand-held portion for holding by hand and a support portion connected to the hand-held portion, the support portion having a support plane.

7. The sprint dumbbell of claim 6, wherein the support portion is magnetic.

8. The sprint dumbbell of claim 6, wherein there are three receiving chambers, and each receiving chamber is filled with the filling mechanism.

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

10. 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.

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