Skipping rope handle and skipping rope

Abstract

The skipping rope handle comprises a shell, a stator fixed in the shell and a rotor rotating relative to the stator, one of the opposite faces of the stator and the rotor is provided with a first magnetic pole face, and the other one of the opposite faces of the stator and the rotor is provided with a second magnetic pole face and a third magnetic pole face which are opposite in the radial direction. The polarity of the first magnetic pole face is the same as that of the third magnetic pole face. The invention further discloses a skipping rope which comprises a rope body and the skipping rope handle, and the rotor of the skipping rope handle is connected with the rope body and synchronously rotates along with the rope body. The first magnetic pole face and the second magnetic pole face repel like poles to generate repulsive force, assistance is provided for the low-speed stroke section, rotation of the rotor is accelerated, then the rope speed is increased, and the time consumed by a human body in a poor force exerting interval is shortened, the first magnetic pole face and the third magnetic pole face attract like poles to generate attraction force, resistance is provided for the high-speed stroke section, and the rope speed is increased. And the rotation of the rotor is slowed down, so that the rope speed is reduced, more reaction adjustment time is provided for athletes, and the stability and speed of rope skipping are improved.

Description

Technical Field

[0001] The invention relates to the technical field of rope skipping, and in particular to a rope skipping handle and a rope skipping. Background Art

[0002] As a traditional competitive sport that has lasted for more than 2,000 years, rope skipping has a long history and fans in my country. Due to its fitness effect and social attributes, it has become one of the earliest sports with the prototype of "national fitness". With the increasingly important educational status of sports, rope skipping has also developed from a childhood game to the current examination and international competitive event. For example, the "National Student Physical Fitness Standard (Revised in 2014)" stipulates a one-minute rope skipping test standard for primary school students from grades 1 to 6. The high school entrance examination in many places also includes rope skipping as one of the sports electives for the high school entrance examination. The World Rope Skipping Championship is held every two years.

[0003] During rope skipping, poor stability and continuity can easily lead to tripping and rope breaking. Therefore, rope skipping speed and rope stability are important factors that affect performance or exercise effects. Therefore, it is of positive significance to provide a rope skipping tool that can improve rope skipping stability and speed. Summary of the invention

[0004] In view of the above problems, the object of the present invention is to provide a skipping rope handle and a skipping rope that can improve the stability of the skipping rope and increase the speed of the skipping rope, so as to help improve the exercise effect or competition results of the athletes.

[0005] The inventor of this case integrated and analyzed a large amount of biomechanical data of rope skipping and found that during rope skipping, the maximum speed of the rope is close to 120km / h, but the speed of the rope is uneven during the entire circular motion. Due to the characteristics of the human anatomical structure, the shoulder joint of the human body is restricted by some bones when flexing and extending. When the rope passes the highest point and returns to the front of the person, the wrist and forearm can exert force. Therefore, when the rope is located in front of the person and approaches the legs at an angle of 75 degrees to the horizontal plane, the speed reaches the maximum value, but after passing the feet, the speed begins to decrease and continues until it passes the top of the head again. Therefore, in the entire circular motion of the rope, 3 / 5 of the travel is slow and 2 / 5 of the travel is fast.

[0006] Based on the above-mentioned biomechanical motion laws, in order to ensure the stability and athletic performance of rope skipping, it is necessary to increase the speed of the slow stroke phase and appropriately reduce the speed of the fast stroke phase.

[0007] Therefore, the technical solution proposed by the present invention is: A skipping rope handle comprises a shell, a stator fixed in the shell, and a rotor rotating relative to the stator. One of the opposite surfaces of the stator and the rotor is provided with a first magnetic pole face, and the other is provided with a second magnetic pole face and a third magnetic pole face which are radially opposite to each other. The first magnetic pole face and the second magnetic pole face have the same polarity, and the first magnetic pole face and the third magnetic pole face have opposite polarities.

[0008] Preferably, the second pole face extends circumferentially around the rotation axis of the rotor and the extension angle is a, 260°≤a≤270°, and the third pole face extends circumferentially around the rotation axis of the rotor and the extension angle is b, 90°≤b≤100°, a+b≤360°.

[0009] Preferably, the first magnetic pole face extends circumferentially around the rotation axis of the rotor and the extension angle is c, 90°≤c≤100°.

[0010] Preferably, the distance between the first magnetic pole face and its opposite face gradually increases along the circumferential direction.

[0011] Preferably, the outer wall of the shell is provided with a holding mark so that when holding, the second magnetic pole surface is relatively located on the back side of the human body, the third magnetic pole surface is relatively located on the front side of the human body, the angle between the upper edge of the third magnetic pole surface and the horizontal plane is 15° to 20°, and the angle between its lower edge and the horizontal plane is 75° to 80°.

[0012] Preferably, the rotor includes a first magnet and a non-magnet connected end to end in a ring shape, the stator includes a second magnet and a third magnet connected end to end in a ring shape, the rotor and the stator are coaxially arranged and relatively rotatable, the side of the first magnet facing the stator is the first magnetic pole face, the side of the second magnet facing the rotor is the second magnetic pole face, and the side of the third magnet facing the rotor is the third magnetic pole face.

[0013] Preferably, the magnetic induction intensity of the first magnet gradually decreases along the rotation direction of the rotor.

[0014] Preferably, a sliding pad, such as polytetrafluoroethylene, is provided between the rotor and the stator.

[0015] Preferably, a first retaining ring and a second retaining ring are fixed at intervals in the outer shell, and a first accommodating space is formed between the outer shell and the first retaining ring for accommodating the rope body of the skipping rope. A second accommodating space is formed between the outer shell and the first retaining ring and the second retaining ring for accommodating the rotor and the stator. One end of the stator abuts against the first retaining ring, and the other end abuts against the second retaining ring.

[0016] A skipping rope comprises a rope body and a skipping rope handle of the present invention. The rope body is connected with a rotor of the skipping rope handle, and the rotor rotates synchronously with the rope body.

[0017] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: the skipping rope handle of the present invention generates repulsive force through the principle of like-pole repulsion between the first magnetic pole face and the second magnetic pole face, provides assistance for the slow stroke section, speeds up the rotation of the rotor, thereby increasing the rope speed and reducing the time consumed in the interval where the human body is difficult to exert force; and generates suction force through the principle of opposite-pole attraction between the first magnetic pole face and the third magnetic pole face, provides resistance for the fast stroke section, slows down the rotation of the rotor, thereby reducing the rope speed and giving athletes more time to react and adjust. Therefore, the present invention can improve the stability of the skipping rope and increase the speed of the skipping rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a diagram of the rope skipping exercise process.

[0019] Figure 2 It is a longitudinal half-section schematic diagram of the outer shell of the skipping rope handle of the first embodiment.

[0020] Figure 3 It is a longitudinal half-section schematic diagram of the skipping rope handle of the first embodiment.

[0021] Figure 4 and Figure 5 It is a transverse half-section schematic diagram of the skipping rope handle of the first embodiment.

[0022] Figure 6 This is a transverse half-section schematic diagram of the skipping rope handle of the second embodiment.

[0023] Figure 7 This is a schematic transverse half-section diagram of the skipping rope handle of the third embodiment.

[0024] Figure 8 It is a transverse half-section schematic diagram of the skipping rope handle of the fourth embodiment.

[0025] Fig. 9 It is a longitudinal half-section schematic diagram of the skipping rope handle of the fourth embodiment.

[0026] Wherein: 1. shell, 2. stator, 3. rotor, 4. first magnetic pole surface, 5. second magnetic pole surface, 6. third magnetic pole surface, 7. first magnet, 8. non-magnetic body, 9. second magnet, 10. third magnet, 11. first retaining ring, 12. second retaining ring, 13. first accommodating space, 14. second accommodating space, 15. rope body, 16. rotating shaft, 17. connector. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0028] The present invention discloses a rope skipping handle, which comprises a shell 1, and a stator 2 and a rotor 3 arranged in the shell 1, wherein the stator 2 is fixedly connected to the shell 1, and the rotor 3 is rotatably arranged relative to the stator 2, and rotates synchronously with the rope body 15 of the rope skipping. One of the opposite surfaces of the stator 2 and the rotor 3 is configured with a first magnetic pole face 4, and the other is configured with a second magnetic pole face 5 and a third magnetic pole face 6 which are radially opposite to each other, wherein the second magnetic pole face 5 has the same polarity as the first magnetic pole face 4, and the third magnetic pole face 6 has the opposite polarity to the first magnetic pole face 4.

[0029] Among them, the second magnetic pole face 5 corresponds to the slow travel stage. When the first magnetic pole face 4 passes the second magnetic pole face 5, the rotation speed of the rotor 3 is accelerated by the principle of magnetic field repulsion, thereby increasing the rope speed. The third magnetic pole face 6 corresponds to the fast travel section. When the first magnetic pole face 4 passes the third magnetic pole face 6, the rotation speed of the rotor 3 is slowed down by the principle of magnetic field attraction, thereby reducing the rope speed. During the rope skipping process, the use of the rope skipping handle of the present invention can reduce the rope speed when the rope body 15 approaches the foot to improve the continuity of the rope skipping, giving athletes more reaction time and adjustment time, while increasing the speed of the rope body 15 for a long distance after the foot, so as to reduce the time consumed in the interval where the human body is difficult to exert force, achieve relative balance and stability of the entire circular motion of the rope body 15, and improve the continuity and speed of the rope skipping.

[0030] The present invention also discloses a skipping rope, which includes a rope body 15 and a skipping rope handle of the present invention. A skipping rope handle is connected to each end of the rope body 15. The rotor 3 of the skipping rope handle is connected to the rope body 15 and rotates synchronously with the rope body 15. The skipping rope handle can improve the continuity and speed of skipping rope.

[0031] The present invention is described in more detail below in conjunction with some preferred embodiments of the present invention.

[0032] Embodiment 1 Combination Figure 1 to Figure 5 The rope skipping handle of this embodiment includes a shell 1, a stator 2 and a rotor 3 which are coaxially sleeved from outside to inside. A first retaining ring 11 and a second retaining ring 12 are arranged in the shell 1 along the axial direction, and the inner cavity of the shell 1 is divided into a first accommodating space 13 and a second accommodating space 14. The rotor 3 and the stator 2 are arranged in the second accommodating space 14, and the outer peripheral wall of the stator 2 is connected to the inner peripheral wall of the shell 1, and one end of the stator 2 is abutted against the first retaining ring 11, and the other end is abutted against the second retaining ring 12. The first retaining ring 11 and the second retaining ring 12 limit the axial movement and circumferential rotation of the stator 2. Of course, the stator 2 can also be limited to rotate and move relative to the shell 1 by other means such as bonding with the shell 1. The outer peripheral wall of the rotor 3 is connected to the inner peripheral wall of the stator 2, and the rotor 3 can rotate relative to the stator 2. Of course, in order to make the rotor 3 rotate smoothly so as not to affect the smoothness of the rope skipping, a sliding pad, such as a polytetrafluoroethylene pad, can be arranged between the rotor 3 and the stator 2 to reduce the friction between the two.

[0033] The first accommodating space 13 is used to adjust the rope length. The rope body 15 passes through the first retaining ring 11, the rotor 3 and the second retaining ring 12 and is fixed, and the excess part after adjustment is stored in the first accommodating space 13.

[0034] The rotor 3 of this embodiment includes a first magnet 7 and a non-magnet 8 connected end to end in an annular shape. The outer peripheral surface of the first magnet 7 is the first magnetic pole surface 4. The non-magnet 8 itself does not have magnetism and cannot be magnetized, such as plastic or aluminum. The stator 2 includes a second magnet 9 and a third magnet 10 connected end to end in an annular shape. The inner peripheral surface of the second magnet 9 is the second magnetic pole surface 5, and the inner peripheral surface of the third magnet 10 is the third magnetic pole surface 6. The second magnetic pole surface 5 has the same polarity as the first magnetic pole surface 4, and the third magnetic pole surface 6 has the opposite polarity to the first magnetic pole surface 4, that is, if the first magnetic pole surface 4 and the second magnetic pole surface 5 are N poles, the third magnetic pole surface 6 is S pole; if the first magnetic pole surface 4 and the second magnetic pole surface 5 are S poles, the third magnetic pole surface 6 is N pole. Of course, the stator 2 can also directly use a radial magnetic ring with opposite magnetic poles on the inner peripheral surface, such as a radial oriented magnetic ring.

[0035] According to the speed change law of the skipping rope during the movement, the circumferential extension angle of the second magnetic pole surface 5 is set to a, and the circumferential extension angle of the third magnetic pole surface 6 is set to b, 260°≤a≤270°, 90°≤b≤100°, a+b=360°. Of course, in another preferred embodiment of the present invention, the second magnet 9 and the third magnet 10 are not connected end to end, and there is a gap between the two. In this case, a+b<360°.

[0036] In order to facilitate athletes to correctly hold the rope skipping handle, the outer wall of the housing 1 of this embodiment is provided with a holding mark. The athlete is abstracted as a vertical line. When the athlete correctly holds the rope skipping handle according to the holding mark, the second magnetic pole surface 5 is relatively located at the rear side of the human body, the third magnetic pole surface 6 is relatively located at the front side of the human body, the angle b1 between the upper edge of the third magnetic pole surface 6 and the horizontal plane is 15° to 20°, and the angle b2 between the lower edge of the third magnetic pole surface 6 and the horizontal plane is 75° to 80°, so as to meet the speed change law during rope skipping.

[0037] In order to match the speed change of the rope body 15 during rotation and further improve the rope skipping state, the magnetic induction intensity of the first magnet 7 can be set to gradually decrease along the rotation direction of the rotor 3, and the magnetic force gradually increases during the first magnet 7 rotates through the second magnet 9 / third magnet 10. Alternatively, the spacing h between the first magnetic pole face 4 and the inner circumferential surface of the stator 2 is set to gradually increase along the circumferential direction, so that the magnetic force on the first magnet 7 gradually increases during the first magnet 7 rotates through the second magnet 9 / third magnet 10. The angle of the circumferential extension of the first magnetic pole face 4 is c, 90°≤c≤100°.

[0038] Embodiment 2 Combination Figure 6 , the present embodiment is similar in structure to the first embodiment, and the main difference between the two is that the structures of the stator 2 and the rotor 3 of the present embodiment are different from those of the first embodiment. The stator 2 of the present embodiment includes a first magnet 7 and a non-magnet 8 connected end to end to form a ring, and the rotor 3 includes a second magnet 9 and a third magnet 10 connected end to end to form a ring, the inner circumference of the first magnet 7 is the first magnetic pole face 4, the outer circumference of the second magnet 9 is the second magnetic pole face 5, and the outer circumference of the third magnet 10 is the third magnetic pole face 6. The rest of the parts refer to the first embodiment and will not be described in detail here.

[0039] Embodiment 3 Combination Figure 7 The structure of this embodiment is similar to that of the second embodiment. The main difference between the two is that the stator 2 of this embodiment includes a first magnet 7, which is fixed to the inner wall of the housing 1. The rotor 3 is rotatably arranged in the housing 1 through a bearing or a sleeve. The rest of the parts are the same as those of the second embodiment and will not be repeated here.

[0040] Embodiment 4 Combination Figure 8 and Fig. 9 The rope skipping handle of this embodiment includes: a housing 1, a stator 2 fixed in the housing 1, a rotor 3 coaxially inserted in the stator 2, and a connector 17 connected to the rotor 3. The stator 2 includes a second magnet 9 and a third magnet 10 connected end to end in a ring shape, the inner circumference of the second magnet 9 is a second magnetic pole face 5, and the inner circumference of the third magnet 10 is a third magnetic pole face 6. The rotor 3 includes a rotating shaft 16 rotatably arranged in the stator 2 and a first magnet 7 fixed on the outer circumference of the rotating shaft 16, the rotating shaft 16 is made of non-magnetic material, the side of the first magnet 7 facing the stator 2 is the first magnetic pole face 4, one end of the rotating shaft 16 is connected to the connector 17, and the connector 17 is used to connect the rope body 15. The rope body 15 drives the rotating shaft 16 to rotate synchronously, and then drives the first magnet 7 to rotate through the second magnet 9 and the third magnet 10 in sequence, providing assistance for the slow stroke stage, speeding up the rope speed, providing resistance for the fast stroke stage, slowing down the rope speed, and then balancing the rotation speed of the rope body 15, thereby improving the skipping speed and continuity of the rope.

[0041] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A skipping rope handle, characterized in that: include: A housing (1), a stator (2) fixed in the housing (1), and a rotor (3) rotating relative to the stator (2); One of the opposing surfaces of the stator (2) and the rotor (3) is provided with a first magnetic pole face (4), and the other is provided with a second magnetic pole face (5) and a third magnetic pole face (6) which are radially opposite to each other. The first magnetic pole face (4) and the second magnetic pole face (5) have the same polarity, and the first magnetic pole face (4) and the third magnetic pole face (6) have opposite polarities.

2. The skipping rope handle according to claim 1, characterized in that: The second magnetic pole surface (5) extends circumferentially around the rotation axis of the rotor (3) and the extension angle is a, 260°≤a≤270°, and the third magnetic pole surface (6) extends circumferentially around the rotation axis of the rotor (3) and the extension angle is b, 90°≤b≤100°, a+b≤360°.

3. The skipping rope handle according to claim 2, characterized in that: The first magnetic pole surface (4) extends circumferentially around the rotation axis of the rotor (3) and has an extension angle c, 90°≤c≤100°.

4. The skipping rope handle according to claim 3, characterized in that: The distance between the first magnetic pole surface (4) and its opposite surface gradually increases along the circumferential direction.

5. The skipping rope handle according to claim 2, characterized in that: The outer wall of the housing (1) is provided with a holding mark so that when the device is held, the second magnetic pole surface (5) is relatively located at the rear side of the human body, the third magnetic pole surface (6) is relatively located at the front side of the human body, the angle between the upper edge of the third magnetic pole surface (6) and the horizontal plane is 15° to 20°, and the angle between the lower edge of the third magnetic pole surface (6) and the horizontal plane is 75° to 80°.

6. The skipping rope handle according to any one of claims 1 to 5, characterized in that: The rotor (3) comprises a first magnet (7) and a non-magnet (8) connected end to end in an annular shape, and the stator (2) comprises a second magnet (9) and a third magnet (10) connected end to end in an annular shape, and the rotor (3) and the stator (2) are coaxially sleeved and relatively rotatable, the first magnet (7) having a side facing the stator (2) as a first magnetic pole face (4), the second magnet (9) having a side facing the rotor (3) as a second magnetic pole face (5), and the third magnet (10) having a side facing the rotor (3) as a third magnetic pole face (6).

7. The skipping rope handle according to claim 6, characterized in that: The magnetic induction intensity of the first magnet (7) gradually decreases along the rotation direction of the rotor (3).

8. The skipping rope handle according to claim 7, characterized in that: A sliding pad is provided between the rotor (3) and the stator (2).

9. The skipping rope handle according to claim 1, characterized in that: A first retaining ring (11) and a second retaining ring (12) are fixedly arranged in the outer shell (1), a first accommodation space (13) is formed between the outer shell (1) and the first retaining ring (11) for accommodating a rope body (15) of a skipping rope, and a second accommodation space (14) is formed between the outer shell (1) and the first retaining ring (11) and the second retaining ring (12) for accommodating a rotor (3) and a stator (2), one end of the stator (2) abuts against the first retaining ring (11), and the other end abuts against the second retaining ring (12).

10. A skipping rope, characterized in that: It comprises a rope body (15) and a rope skipping handle according to any one of claims 1 to 9, wherein the rope body (15) is connected to a rotor (3) of the rope skipping handle, and the rotor (3) rotates synchronously with the rope body (15).

Images