CN218871154U - Handle of skipping rope and skipping rope - Google Patents

Abstract

The present disclosure relates to a handle and skipping rope of skipping rope, including: the magnetic fluid sealing device comprises a shell (1), a first cavity (11) is arranged inside the shell, a magnetic fluid (12) is contained in the first cavity (11), a rotating shaft (2) is arranged in the shell (1) and can rotate around the central axis of the rotating shaft relative to the shell (1), the rotating shaft (2) penetrates through the first cavity (11) in a sealing mode, a second cavity (21) is arranged inside the rotating shaft (2), a magnetic part (22) capable of rotating along with the rotating shaft (2) is arranged in the second cavity (21), the magnetic part (22) can attract the magnetic fluid (12) mutually, and the size of attraction between the magnetic part (22) and the magnetic fluid (12) is adjustable. Through above-mentioned technical scheme, the nonadjustable technical problem of the rotational speed of rope skipping can be solved to the handle of rope skipping and rope skipping that this disclosure provided.

Description

Handle of skipping rope and skipping rope

Technical Field

The disclosure relates to the technical field of sports equipment, in particular to a handle of a skipping rope and the skipping rope.

Background

The cordless skipping rope is a novel sports apparatus, and can generally record skipping rope times, exercise duration and calorie number consumed by a human body in the skipping rope process, and display the data on an LED screen on a handle, so that the inconvenience of skipping while counting is avoided for a user, the user can also visually see heat consumed in the skipping rope process, and the user can enjoy the exercise. The existing wireless skipping rope simulates the weight of a real rope through a solid ball with certain weight at one end of a handle, a user obtains the same use feeling as a common skipping rope by swinging the solid ball on the handle in the skipping rope process, and the rotation of the solid ball is mainly realized through a single or a pair of rotating bearings on the handle.

However, when the solid ball is swung by the same amount of force, the requirements of each person on the rotation speed of the skipping rope are different, some users want the solid ball to rotate relative to the handle more gently and smoothly, and some users want the solid ball to have certain damping between the solid ball and the handle to improve the hand feeling during swinging. At present, the rotating speed of the solid ball on the skipping rope handle is mainly controlled by friction between a rotor and a shaft sleeve in the bearing, so that the rotating speed of the solid ball is fixed and unadjustable.

SUMMERY OF THE UTILITY MODEL

To overcome the problems in the related art, the present disclosure provides a handle for a skipping rope and a skipping rope.

According to a first aspect of the embodiment of the disclosure, a handle of a skipping rope is provided, which includes a housing, a first cavity is arranged inside the housing, a magnetic fluid is accommodated in the first cavity, and a rotating shaft is arranged in the housing and can rotate around a central axis of the rotating shaft relative to the housing, the rotating shaft penetrates through the first cavity in a sealing manner, a second cavity is arranged inside the rotating shaft, a magnetic part capable of rotating along with the rotating shaft is arranged in the second cavity, the magnetic part and the magnetic fluid can attract each other, and the attraction force between the magnetic part and the magnetic fluid is adjustable.

Optionally, the magnetic part includes a plurality of permanent magnets that follow the axial of pivot is arranged in proper order, and is a plurality of the magnetic pole of permanent magnet is followed the radial of pivot is arranged, and adjacent two the magnetic pole of permanent magnet sets up in opposite directions, the pivot still includes the cushion chamber, the cushion chamber sets up the edge of second cavity the axial is kept away from the one end of first cavity, just the cushion chamber with the second cavity communicates each other, the magnetic part can be followed the axial gets into the cushion chamber, so that the magnetic part is followed the axial gets into the length of second cavity is adjustable.

Optionally, the pivot still includes the regulating part, the one end that is close to of pivot the cushion chamber be provided with the opening of cushion chamber intercommunication, the end of regulating part can pass through in proper order the opening with the cushion chamber inserts in the second cavity, the regulating part can drive magnetism portion follows axial displacement.

Optionally, the magnetism portion inscription in the inner wall of second cavity, just the inner wall of second cavity is along circumference locking magnetism portion, the regulating part is the bolt, the bolt with pivot threaded connection, magnetism portion can with the end of bolt attracts mutually to close, so that the bolt for when the pivot rotates can drive magnetism portion follows axial displacement.

Optionally, the magnetic part is an electromagnet, and the current of the electromagnet is adjustable.

Optionally, the system further comprises a circuit control system for adjusting the current magnitude of the electromagnet.

Optionally, the rotating shaft is rotatably connected to the housing through two bearings, and a mounting seat for fixedly connecting with an outer ring of the bearing is arranged in the housing.

Optionally, the first cavity, the rotating shaft, and the second cavity are coaxially disposed.

Optionally, the first cavity is filled with the magnetic fluid.

Optionally, the second cavity is housed in the first cavity.

According to a second aspect of the embodiments of the present disclosure, there is provided a skipping rope, which includes the handle in the above technical solution, and a solid ball connected to the rotating shaft.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: in the handle of rope skipping that this disclosure provides, the magnetism position is in the inside second cavity of pivot, and the magnetic current body is located the first cavity of pivot outside, and the magnetic current body can contact with the outer peripheral face of pivot, can attract each other between magnetism portion and the magnetic current body to make the magnetic current body have certain viscosity, when the pivot drove magnetism portion and rotate together, the magnetic current body that has viscosity can produce the damping effect to the rotation of pivot. The magnetic fluid has variable viscosity due to adjustable attraction between the magnetic part and the magnetic fluid, so that the damping from the magnetic fluid on the rotating shaft in the rotating process can be adjusted. That is, when the user swings the handle with the same amount of force to rotate the rotation shaft, the rotation speed of the rotation shaft is adjustable because the amount of damping applied to the rotation shaft is adjustable. In addition, the viscosity of the magnetic fluid can damp the rotating shaft, so that the noise in the rotating process of the rotating shaft can be reduced. The skipping rope provided by the present disclosure has the same technical effect as the above technical solutions, and is not described herein in detail in order to avoid unnecessary repetition.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is an isometric view of a handle of a skipping rope shown according to an exemplary embodiment.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a cross-sectional view of fig. 1.

Fig. 4 is a cross-sectional view of a handle of a jump rope according to another exemplary embodiment.

Description of the reference numerals

1-shell, 11-first cavity, 12-magnetic fluid, 13-mounting seat, 2-rotating shaft, 21-second cavity, 22-magnetic part, 221-permanent magnet, 23-buffer cavity, 24-adjusting part, 241-tail end, 25-opening, 3-bearing and 4-circuit control system.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

In the present disclosure, the use of directional terms such as "inner and outer" refers to the inner and outer of the profile of the corresponding component part itself, unless otherwise stated. The terms "first," "second," and the like, as used in this disclosure, are intended to distinguish one element from another, and are not necessarily order or importance.

According to a first aspect of the embodiments of the present disclosure, there is provided a handle for skipping rope, which is shown in fig. 1 to 4, and includes a housing 1 and a rotating shaft 2, wherein a first cavity 11 may be disposed inside the housing 1, a magnetic fluid 12 is accommodated in the first cavity 11, the rotating shaft 2 may be disposed in the housing 1 and may rotate relative to the housing 1 around a central axis thereof, the rotating shaft 2 sealingly penetrates through the first cavity 11, a second cavity 21 may be disposed inside the rotating shaft 2, a magnetic portion 22 that may rotate along with the rotating shaft 2 may be disposed in the second cavity 21, the magnetic portion 22 may attract the magnetic fluid 12, and a magnitude of an attraction force between the magnetic portion 22 and the magnetic fluid 12 may be adjustable.

Through the technical scheme, in the handle of rope skipping that this disclosure provided, magnetism portion 22 is located the inside second cavity 21 of pivot 2, magnetic current body 12 is located the first cavity 11 in the 2 outsides of pivot, and magnetic current body 12 can contact with the outer peripheral face of pivot 2, can inter attraction between magnetism portion 22 and the magnetic current body 12, so that magnetic current body 12 has certain viscosity, when pivot 2 drives magnetism portion 22 and rotates together, magnetic current body 12 that has viscosity can produce the damping effect to the rotation of pivot 2. Because the attractive force between the magnetic part 22 and the magnetic fluid 12 is adjustable, the viscosity of the magnetic fluid 12 is variable, and therefore, the damping from the magnetic fluid 12 on the rotating shaft 2 during the rotation process is adjustable. That is, when the user swings the handle with the same amount of force to rotate the rotation shaft 2, the rotation speed of the rotation shaft 2 is adjustable because the amount of damping applied to the rotation shaft 2 is adjustable. In addition, the viscosity of the magnetic fluid 12 damps the rotating shaft 2, so that noise generated during the rotation of the rotating shaft 2 can be reduced.

In one embodiment of the present disclosure, the magnitude of the attractive force between the magnetic portion 22 and the magnetic fluid 12 may be adjusted by adjusting the distance between the magnetic portion 22 and the magnetic fluid 12. Specifically, referring to fig. 2 and 3, the magnetic part 22 may include a plurality of permanent magnets 221 sequentially arranged along the axial direction of the rotating shaft 2, wherein magnetic poles of the plurality of permanent magnets 221 are arranged along the radial direction of the rotating shaft, and the magnetic poles of two adjacent permanent magnets 221 are oppositely arranged, so that the plurality of permanent magnets 221 can be attracted and fixed to each other. The rotating shaft 2 may further include a buffer chamber 23, the buffer chamber 23 is disposed at one end of the second cavity 21 far away from the first cavity 11 in the axial direction, and the buffer chamber 23 and the second cavity 21 are communicated with each other, the magnetic portion 22 can enter the buffer chamber 23 in the axial direction, so that the length of the magnetic portion 22 entering the second cavity 21 in the axial direction is adjustable, that is, in the process that the magnetic portion 22 moves from the second cavity 21 toward the buffer chamber 23 in the axial direction and finally enters the buffer chamber 23 partially or completely, the magnetic portion 22 can gradually move away from the first cavity 11 and the magnetic fluid 12, so that the attraction force between the magnetic portion 22 and the magnetic fluid 12 becomes small, the viscosity of the magnetic fluid 12 becomes low, so that the damping received by the rotating shaft 2 decreases, and correspondingly, in the process that the magnetic portion 22 moves from the buffer chamber 23 toward the second cavity 21 in the axial direction and finally enters the second cavity 21 partially or completely, the magnetic portion 22 can gradually move close to the first cavity 11 and the magnetic fluid 12, so that the viscosity between the magnetic portion 22 and the magnetic fluid 12 becomes large, so that the viscosity received by the rotating shaft 2 is increased.

In order to enable the magnetic part 22 to move axially, referring to fig. 1 to 3, the rotating shaft 2 may further include a rod-shaped adjusting member 24, one end of the rotating shaft 2 close to the buffer cavity 23 may be provided with an opening 25 communicating with the buffer cavity 23, a distal end of the adjusting member 24 may be inserted into the second cavity 21 through the opening 25 and the buffer cavity 23 in sequence, and the adjusting member 24 may drive the magnetic part 22 to move axially.

In order to enable the magnetic part 22 to rotate around the central axis with the rotating shaft 2, referring to fig. 3, the magnetic part 22 may be internally connected to the inner wall of the second cavity 21, and the inner wall of the second cavity 21 may lock the magnetic part 22 in the circumferential direction, so that the magnetic part 22 cannot rotate relative to the second cavity 21 in the circumferential direction. Specifically, magnetism portion 22 can be constructed for the cuboid structure, and second cavity 21 is not less than the axial length of following of magnetism portion 22 along axial length to make magnetism portion 22 can hold completely in second cavity 21, the outside profile of magnetism portion 22 can laminate mutually with the inner wall of second cavity 21, in order to avoid magnetism portion 22 to hold and shake along the radial emergence of pivot 2 when in second cavity 21, thereby make pivot 2 can drive magnetism portion 22 and take place to rotate together, and the process of rotating is steady in the same direction as smooth. In order to fix the adjusting member 24 to the rotating shaft 2 in the axial direction, the adjusting member 24 may be a bolt, the bolt may be in threaded connection with the rotating shaft 2, and the magnetic portion 22 may be capable of engaging with the end 241 of the bolt, so as to ensure the relative fixation between the magnetic portion 22 and the bolt in the axial direction. Due to the limitation of the second cavity 21 to the magnetic part 22 in the radial direction, when the bolt rotates relative to the rotating shaft 2, the magnetic part 22 can rotate relative to the end 241 of the bolt in the radial plane, and remains fixed relative to the end 241 of the bolt in the axial direction, so that the bolt can drive the magnetic part 22 to move in the axial direction.

In another embodiment of the present disclosure, the magnitude of the attractive force between the magnetic portion 22 and the magnetic fluid 12 may be adjusted by changing the magnitude of the magnetic force of the magnetic portion 22. Specifically, referring to fig. 4, the magnetic portion 22 may be an electromagnet, and the current of the electromagnet when energized is adjustable, so that the attractive force between the magnetic portion 22 and the magnetic fluid 12 is adjustable.

In order to adjust the current of the electromagnet when the electromagnet is powered, referring to fig. 4, the handle may further include a circuit control system 4 for adjusting the current of the electromagnet, and accordingly, a button (not shown) for adjusting the current may be provided on the housing 1 so that a user can control the circuit control system 4 by the button.

Referring to fig. 1 to 4, the rotating shaft 2 may be rotatably connected to the housing 1 through two bearings 3 to ensure that the rotating process of the rotating shaft 2 is smooth and smooth, and accordingly, the housing 1 may be provided with a mounting seat 13 for fixedly connecting with an outer ring of the bearing 3, and an inner ring of the bearing 3 may be sleeved on an outer circumferential surface of the rotating shaft 2.

In order to make the rotating shaft 2 uniformly stressed and the rotating process smooth and stable, referring to fig. 1 to 4, the first cavity 11, the rotating shaft 2 and the second cavity 21 may be coaxially disposed, and the first cavity 11 may be filled with the magnetic fluid 12 to prevent the rotating shaft 2 from shaking during the rotating process.

In the embodiment of the present disclosure, the second cavity 21 may be offset from the first cavity 11 in the axial direction of the rotating shaft 2, or the second cavity 21 may be partially accommodated in the first cavity 11. In order to reduce the length of the handle and simplify the structure of the handle, referring to fig. 3 and 4, the second cavity 21 may be completely accommodated in the first cavity 11, and the length of the second cavity 21 in the axial direction is not greater than the length of the first cavity 11 in the axial direction. In addition, two mounting seats 13 may be respectively located at two sides of the first cavity 11, so that the force applied to the rotating shaft 2 is uniform and the rotating shaft rotates smoothly.

According to a second aspect of the embodiments of the present disclosure, there is provided a skipping rope, which includes the handle in the above technical solution, and a solid ball connected to the rotating shaft. It should be noted that the handle of the present disclosure can be used not only for a cordless skipping rope but also for a corded skipping rope, and when the handle is used for a corded skipping rope, the rotating shaft is connected with one end of the rope.

Through the technical scheme, the skipping rope provided by the disclosure has the same technical effect as the technical scheme, and is not repeated herein in order to avoid unnecessary repetition.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (11)

1. A handle for a skipping rope, comprising:

a housing (1) inside which a first cavity (11) is arranged, a magnetic fluid (12) being accommodated in the first cavity (11), and

the rotating shaft (2) is arranged in the shell (1) and can rotate around the central axis of the rotating shaft (2) relative to the shell (1), the rotating shaft (2) penetrates through the first cavity (11) in a sealing mode, the second cavity (21) is arranged inside the rotating shaft (2), a magnetic part (22) capable of rotating along with the rotating shaft (2) is arranged in the second cavity (21), the magnetic part (22) can attract the magnetic fluid (12) mutually, and the size of attraction between the magnetic part (22) and the magnetic fluid (12) is adjustable.

2. The handle according to claim 1, wherein the magnetic part (22) comprises a plurality of permanent magnets (221) sequentially arranged along the axial direction of the rotating shaft (2), the magnetic poles of the plurality of permanent magnets (221) are arranged along the radial direction of the rotating shaft (2), and the magnetic poles of two adjacent permanent magnets (221) are oppositely arranged,

the rotating shaft (2) further comprises a buffer cavity (23), the buffer cavity (23) is arranged at one end, far away from the first cavity (11), of the second cavity (21) in the axial direction, the buffer cavity (23) is communicated with the second cavity (21), and the magnetic part (22) can enter the buffer cavity (23) in the axial direction, so that the length of the magnetic part (22) entering the second cavity (21) in the axial direction is adjustable.

3. The handle according to claim 2, wherein the rotating shaft (2) further comprises an adjusting member (24), an opening (25) communicated with the buffer cavity (23) is formed in one end, close to the buffer cavity (23), of the rotating shaft (2), a tail end (241) of the adjusting member (24) can be inserted into the second cavity (21) through the opening (25) and the buffer cavity (23) in sequence, and the adjusting member (24) can drive the magnetic part (22) to move along the axial direction.

4. The handle according to claim 3, wherein the magnetic portion (22) is inscribed in an inner wall of the second cavity (21), and the inner wall of the second cavity (21) circumferentially locks the magnetic portion (22),

the adjusting piece (24) is a bolt, the bolt is in threaded connection with the rotating shaft (2), the magnetic part (22) can be attracted with the tail end (241) of the bolt, so that the bolt can drive the magnetic part (22) to move axially relative to the rotating shaft (2) when rotating.

5. A handle according to claim 1, wherein the magnetic part (22) is an electromagnet, the current level of which is adjustable.

6. A handle according to claim 5, further comprising a circuit control system (4) for adjusting the magnitude of the current of the electromagnet.

7. Handle according to claim 1, characterized in that the rotation shaft (2) is rotatably connected in the housing (1) by means of two bearings (3),

and the shell (1) is internally provided with a mounting seat (13) which is fixedly connected with the outer ring of the bearing (3).

8. The handle according to claim 1, wherein the first cavity (11), the spindle (2) and the second cavity (21) are coaxially arranged.

9. The handle according to claim 1, wherein the first cavity (11) is filled with the magnetic fluid (12).

10. The handle according to any of claims 1-9, wherein the second cavity (21) is housed in the first cavity (11).

11. A skipping rope comprising a handle as claimed in any of claims 1 to 10 and a solid ball connected to the shaft.

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