CN111167066A

CN111167066A - Resistance device of body-building machine and body-building machine thereof

Info

Publication number: CN111167066A
Application number: CN202010086022.XA
Authority: CN
Inventors: 曾晴
Original assignee: Xiamen Dmaster Health Tech Co ltd
Current assignee: Xiamen Dmaster Health Tech Co ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-05-19

Abstract

The invention discloses a resistance device of a body-building machine, which comprises a wind resistance unit and a magnetic resistance unit; the wind resistance unit comprises an air volume adjusting disc, and the air volume adjusting disc is rotated to adjust the flow of a flow channel so as to change the resistance of the wind resistance; the magnetic resistance unit comprises a guide rail disc, a metal ring sheet, at least one magnetic seat and at least one guide post; the guide rail disc is provided with a guide disc track for the guide post to pass through; the magnetic base is used for generating magnetic resistance with the metal ring sheet and is provided with a magnetic base track; the guide post is connected with the air volume adjusting disc, penetrates through the guide disc track and extends into the magnetic seat track, and the guide post can move in the magnetic seat track along with the rotation of the air volume adjusting disc so as to drive the magnetic seat to pivot relative to the guide rail disc, so that the magnetic resistance between the magnetic seat and the metal ring sheet is adjusted. The resistance adjusting device is convenient to adjust resistance and large in resistance adjusting range. The invention also discloses a body-building machine applying the resistance device.

Description

Resistance device of body-building machine and body-building machine thereof

Technical Field

The invention relates to fitness equipment, in particular to a resistance device of a fitness machine and the fitness machine.

Background

The flywheel exercise bike imitates the feeling of a real riding road bike, can simulate different riding slopes or resistance through a multi-section resistance device, and can train heart, lung, legs and whole body muscle groups at the same time. In addition, the flywheel exercise bike has good durability, and is very suitable for trainers who want to perform High-intensity intermittent exercise (HIIT).

The existing resistance devices are divided into a wind resistance type resistance device and a magnetic resistance type resistance device, the resistance adjustment range of the single wind resistance type resistance device or the single magnetic resistance type resistance device is small, and the requirements of partial users cannot be met, so that the flywheel exercise bicycle with wind resistance and magnetic resistance simultaneously appears on the market, but the adjustment modes of the wind resistance and the magnetic resistance are respectively and independently operated, the operation is troublesome, and the use is inconvenient.

Disclosure of Invention

Therefore, an object of the present invention is to provide a resistance device of an exercise machine, which is convenient for resistance adjustment and has a wide resistance adjustment range.

In order to achieve the purpose, the technical scheme of the invention is as follows: a resistance device of an exercise machine comprises a wind resistance unit and a magnetic resistance unit.

The wind resistance unit comprises a shell, a wind wheel, a rotating shaft and an air volume adjusting disc, wherein the wind wheel and the air volume adjusting disc are arranged in the shell, the wind wheel is fixedly connected with the rotating shaft and can rotate relative to the shell around the axis of the rotating shaft, the air volume adjusting disc can rotate relative to the shell and is matched with the shell to define a flow channel for air to flow, and the flow of the flow channel is adjusted by rotating the air volume adjusting disc;

the reluctance unit is adjustably disposed in the wind resistance unit, and includes:

a guide rail disc surrounding the axis of the rotating shaft and fixedly connected to the shell, wherein the guide rail disc is provided with at least one guide disc track;

the metal ring sheet surrounds the axis of the rotating shaft and rotates along with the wind wheel;

at least one magnetic base which is magnetic and used for generating magnetic resistance with the metal ring sheet, and the magnetic base is pivotally arranged on the guide rail disc and provided with a magnetic base track;

the guide posts are connected with the air volume adjusting disc, penetrate through the guide disc track and extend into the magnetic seat track, and can move in the magnetic seat track along with the rotation of the air volume adjusting disc so as to drive the magnetic seat to pivot relative to the guide rail disc, so that the magnetic resistance between the magnetic seat and the metal ring sheet is adjusted.

In a further improvement, the magnetic base track has a first end, a second end opposite to the first end, and a turning part between the first end and the second end; when the guide post is positioned at the second end, the resistance device of the body-building machine only generates wind resistance, and when the guide post slides from the second end and passes through the turning part, the resistance device of the body-building machine simultaneously generates wind resistance and magnetic resistance.

Furthermore, the magnetic base is also provided with a pivot point pivoted to the guide rail disc and a magnetic area which is far away from the pivot point and used for generating magnetic resistance with the metal ring sheet, the magnetic base track extends from the pivot point to the direction of the magnetic area, the magnetic base track is bent close to the magnetic area, and the magnetic resistance generated when the guide post slides to the first end is larger than the magnetic resistance generated when the guide post slides to the second end.

Furthermore, the at least one magnetic seat is provided with a seat body pivoted to the guide rail disc and at least one magnetic piece arranged on the seat body, the seat body is provided with the magnetic seat track, the magnetic piece forms the magnetic area, and when the guide pillar is positioned at the first end, the projection of the magnetic piece is overlapped on the metal ring sheet; when the guide post is located at the second end of the magnetic seat track, the projection of the magnetic member does not fall within the range of the metal ring sheet.

Preferably, the reluctance unit includes two magnetic bases and two guide pillars, and the magnetic bases are symmetrically arranged with the axis of the rotating shaft as the center.

Preferably, each magnetic base has a base body pivoted to the guide rail disc and at least one magnetic member arranged on the base body.

Preferably, the position of the magnetic seat on the axis of the rotating shaft is located between the guide rail disc and the metal ring sheet.

In a further improvement, the wind resistance unit further comprises an indicator fixed on the wind volume adjusting disc, and the indicator is exposed out of the shell and used for indicating the number of resistance sections. So as to indicate the resistance generated and facilitate the use of the trainer.

Preferably, the metal ring sheet is circular, the guide rail disc is disc-shaped, and the central axis of the metal ring sheet is overlapped with the central axis of the guide rail disc.

Another object of the present invention is to provide an exercise machine that can adjust wind resistance and magnetic resistance simultaneously.

Therefore, the exercise machine of the present invention comprises a frame unit, a force application set operatively disposed on the frame unit, and the resistance device of the exercise machine for generating resistance, and is installed on the frame unit and connected to the force application set.

The invention has the effects that the wind resistance is generated by the wind resistance unit, the magnetic resistance is generated by the magnetic resistance unit, the wind resistance is adjusted by rotating the wind volume adjusting disc, in the process of adjusting the wind resistance, the wind volume adjusting disc can drive the at least one guide post to slide relative to the guide rail disc so as to enable the at least one magnetic seat to pivot, and the overlapping degree of the projection of the magnetic area on the magnetic seat on the metal ring sheet is changed so as to adjust the magnetic resistance. Therefore, the wind resistance and the magnetic resistance can be adjusted simultaneously only by rotating the wind volume adjusting disk, and the resistance is very convenient to adjust. On the other hand, the resistance is generated by adopting the wind resistance and the magnetic resistance, so that the adjustment range of the resistance is relatively large. Can generate larger movement resistance, improve the training effect and meet the requirements of different trainers.

Drawings

FIG. 1 is an exploded perspective view of the resistance device of the present invention;

FIG. 2 is a side view of the resistance assembly of the present invention with a protective cap omitted;

FIG. 3 is a cross-sectional view taken along line IV-IV in FIG. 2;

FIG. 4 is a perspective view of a magnetoresistive unit of the resistance assembly of the present invention;

FIG. 5 is a fragmentary side view illustrating each of the guide posts of the magnetoresistive unit at the second end of each of the magnet holder rails;

FIG. 6 is a view similar to FIG. 2, illustrating turning of an air quantity adjusting disk and increasing the wind resistance;

FIG. 7 is a view similar to FIG. 5 illustrating each post of the magnetoresistive unit passing through a turn of each pedestal rail, the magnetoresistive unit beginning to generate a magnetic reluctance;

FIG. 8 is a view similar to FIG. 6, illustrating the flow rate adjusting disk continuing to be rotated to the maximum windage;

FIG. 9 is a view similar to FIG. 7, illustrating each post of the magnetoresistive unit at a first end of each magnet holder rail where the resistive force of the magnetoresistive unit is greatest;

FIG. 10 is a perspective view of a first embodiment of the exercise apparatus of the present invention;

FIG. 11 is a perspective view of a second embodiment of the exercise apparatus of the present invention;

FIG. 12 is a perspective view of a third embodiment of the exercise apparatus of the present invention;

[ notation ] to show

1, an exercise machine 1', an exercise machine 10, a frame unit 10', a frame unit 20, a force application group 20', a force application group

30, a handrail 40, a saddle 40', a saddle 500, a resistance device 6, a wind resistance unit 61, a shell 611, a bottom cover 612, an outer cover 613, a protective cover 614, an air inlet area 615, a shielding area 616, a slot 62, a rotating shaft 63, a wind wheel 631, a fixing piece 632, a blade 64, an air quantity adjusting disk 641, an opening area 642, a blocking area 65, an indicating piece 7, a magnetic resistance unit 71, a guide disk 711, a guide disk track 72, a metal ring piece 73, a magnetic seat 730, a magnetic area 731, a seat body 732, a magnetic piece

733, pivot point 734, magnetic base track 735, first end 736, second end 737, turning part 74, guide pillar 75, connecting rod I, flow channel L, axis X, front-back direction

Detailed Description

To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The invention will now be further described with reference to the accompanying drawings and detailed description.

Before the present invention is described in detail, it should be noted that in the following description, the front-back direction X is referred to as the direction viewed by the trainer.

Referring to fig. 1 to 5, a resistance device 500 of an exercise machine is used to generate multi-stage exercise resistance to expand the resistance adjustment range and facilitate increasing exercise intensity. The resistance device 500 includes a wind resistance unit 6 for generating wind resistance, and a magnetic resistance unit 7 for generating magnetic resistance.

Referring to fig. 2 to 4, the wind resistance unit 6 is substantially drum-shaped and includes a housing 61, a rotating shaft 62, a wind wheel 63, an air volume adjusting plate 64, and an indicator 65. The housing 61 has a bottom cover 611, an outer cover 612 detachably mounted on the bottom cover 611, and a protective cover 613, preferably, the outer cover 612 has a plurality of air inlet regions 614 and a plurality of shielding regions 615, each air inlet region 614 is hollow and is used for air inflow, and each shielding region 615 is solid and is used for blocking air inflow. The protective cover 613 covers the outer cover 612 and is used for dust prevention and decoration.

The shaft 62 extends along the axis L and is rotatably mounted to the bottom cover 611. The wind wheel 63 is sleeved on the rotating shaft 62 and fixedly connected to the rotating shaft 62 and driven by the rotating shaft 62 to rotate relative to the housing 61 and generate wind resistance, and the wind wheel 63 has a fixing plate 631 through which the rotating shaft 62 is fixedly connected and a plurality of blades 632 arranged at intervals along the circumferential direction and arranged on the fixing plate 631.

The airflow adjusting disk 64 is rotatably connected to the outer cover 612 and can rotate relative to the housing 61, the airflow adjusting disk 64 and the outer cover 612 cooperate to define a flow channel I for air to flow in, preferably, the airflow adjusting disk 64 has a plurality of opening areas 641 for air to flow in and a plurality of blocking areas 642 for blocking air from flowing in, each opening area 641 is a hollow structure, and each blocking area 642 is a solid structure. The opening areas 641, the blocking areas 642, the air intake areas 614, and the shielding areas 615 cooperate to define the flow channel I, and the airflow adjusting disk 64 is rotated to adjust the flow rate of the flow channel I, thereby generating a wind resistance from low to high.

The indicator 65 is fixed to the airflow adjusting disk 64 and exposed from a slot 616 of the outer cover 612 of the housing 61, the housing 61 is marked with numbers (not shown) of the number of resistance segments, and the indicator 65 can slide in the slot 616 and rotate relative to the outer cover 612 along with the rotation of the airflow adjusting disk 64, thereby being used for marking the number of the resistance segments and being convenient for visual identification of trainers.

The reluctance unit 7 is adjustably disposed in the housing 61 of the wind resistance unit 6, and the reluctance unit 7 includes a guide plate 71, a metal ring 72, two magnetic bases 73, and two guide posts 74.

The guiding plate 71 and the cover 612 are located at two sides of the airflow adjusting plate 64, the guiding plate 71 is substantially disc-shaped and surrounds the axis L, the guiding plate 71 is fixedly connected to the cover 612 through a plurality of connecting rods 75 penetrating through the opening areas 641 of the airflow adjusting plate 64, the guiding plate 71 is made of a material (such as plastic or aluminum) which cannot be absorbed by a magnet, the guiding plate 71 has two guiding plate tracks 711, and preferably, the guiding plate tracks 711 are respectively arc-shaped slots and are symmetrically arranged with the axis L as a center. The metal ring 72 is elevated and fixed to a fixing piece 631 of the wind wheel 63, and the metal ring 72 in this embodiment is made of aluminum, but other metals that can generate eddy current, such as iron and copper, can be used. The metal ring piece 72 is substantially circular and surrounds the axis L and rotates with the wind wheel 63, and preferably, a projection of the metal ring piece 72 on the axis L is located outside the rail disc 71. More preferably, the metal ring piece 72 is coaxial with the guide rail plate 71 and the air volume adjusting plate 64, the metal ring piece 72 is located between the fixing piece 631 and the guide rail plate 71, and in other variations, the metal ring piece 72 can be disposed eccentrically or located between the air volume adjusting plate 64 and the guide rail plate 71.

Referring further to fig. 3 to 5, the magnetic bases 73 are magnetic and are used to generate magnetic resistance with the metal ring plate 72, and the embodiment has two magnetic bases 73, but in other variations, the number of the magnetic bases 73 can be one or more than three, and the number of the magnetic bases 73 can be changed according to the magnetic force requirement. The magnetic bases 73 are arranged symmetrically about the axis L and are pivotally disposed on the track plate 71. The position of the magnetic seats 73 on the axis L is between the rail disc 71 and the metal ring plate 72. Each magnetic base 73 has a base 731 pivotally connected to the guiding plate 71, and two magnetic members 732 disposed on the base 731, the base 731 has a pivot point 733 pivotally connected to the guiding plate 71, and a magnetic base rail 734, the magnetic base rail 734 is a slot and has a first end 735 adjacent to the pivot point 733, a second end 736 opposite to the first end 735, and a turning portion 737 between the first end 735 and the second end 736. The magnetic members 732 are far from the pivot point 733 and form a magnetic region 730 for generating magnetic resistance with the metal ring 72, and the seat rail 734 extends from the pivot point 733 toward the magnetic region 730, and the seat rail 734 is bent near the magnetic region 730. In the present embodiment, each of the magnetic members 732 is a circular magnet and is disposed on a side of the base 731 adjacent to the bottom cover 611, and in other variations, the magnetic members 732 can also be a block magnet and are assembled with the base 731 to form the magnetic region 730.

The guide posts 74 are matched with the disk guide rails 711 and the magnetic bases 73 in number, one end of each guide post 74 is connected to the airflow adjusting disk 64, and the other end of each guide post 74 passes through the respective disk guide rail 711 and extends into the corresponding magnetic base rail 734, so that each guide post 74 can move in the respective magnetic base rail 734 and the corresponding disk guide rail 711 simultaneously along with the rotation of the airflow adjusting disk 64, thereby driving the respective magnetic base 73 to pivot relative to the disk guide 71 around the pivot point 733, so that the projection of the respective magnetic base 73 is gradually overlapped with the metal ring plate 72, and since the metal ring plate 72 moves relative to the magnetic bases 73 along with the continuous rotation of the wind wheel 63, the magnetic flux changes on the surface of the metal ring plate 72 to generate eddy current and magnetic resistance force.

Referring to fig. 2 and 5, when the indicator 65 is located at the position with the lowest number of resistance sections, the flow rate of the flow channel I (see fig. 3) is the smallest, the wind wheel 63 drives the metal ring sheet 72 to rotate relative to the housing 61, the air volume adjusting disk 64, the guide rail disk 71 and the magnetic bases 73, and the generated wind resistance is the smallest, and when the guide posts 74 are located at the second end 736 of the magnetic base rails 734, the projection of the magnetic pieces 732 does not fall within the range of the metal ring sheet 72, and at this time, the magnetic resistance unit 7 does not generate the magnetic resistance.

Referring to fig. 6 and 7, when the airflow adjusting disk 64 (see fig. 2) is rotated, the indicator 65 moves and points at a position centered in the number of resistance sections, at this time, the flow rate of the flow channel I increases, the wind resistance increases, meanwhile, the guide posts 74 are driven to pass through the bends 737 from the second ends 736, the magnetic bases 73 are pushed to overlap with the metal ring 72 by the projection of the magnetic members 732, and the magnetic resistance unit 7 starts to generate magnetic resistance along with the rotation of the metal ring 72.

Referring to fig. 8 and 9, when the airflow adjusting disk 64 is continuously rotated to the position where the indicator 65 is at the highest number of resistance sections, the flow rate of the flow channel I is the largest, the wind resistance is the largest, and the guide posts 74 are driven to move from the turning portions 737 to the first ends 735, the magnetic bases 73 are pushed to the position where the projections of the magnetic members 732 completely overlap the metal ring piece 72, so that the magnetic resistance of the magnetic resistance unit 7 reaches the maximum value.

The magnetic bases 73 are pivoted by the guide posts 74, so that the magnetic resistance of the magnetic resistance unit 7 can be gradually increased from the second ends 736 to the first ends 735, and the wind resistance and the magnetic resistance can be adjusted at the same time. Not only is the resistance adjustment convenient, but also the adjustment range of the resistance is enlarged.

Thus, when the trainer selects the lowest number of resistance stages, the guide posts 74 are located at the second ends 736, and the resistance device 500 generates only minimal wind resistance and no magnetic resistance. As the number of resistance sections is increased, the guide posts 74 respectively slide from the second ends 736 and pass through the turns 737, so that the wind resistance is increased and the resistance device 500 simultaneously generates a magnetic resistance. When the guide posts 74 move to the first ends 735, the wind resistance and the magnetic resistance are maximized at the same time, the number of resistance sections is the highest, and the strength of motion is the greatest. Therefore, the trainer can synchronously adjust the wind resistance and the magnetic resistance by rotating the wind volume adjusting disk 64, does not need to adjust twice, can increase the movement resistance, improves the training effect, is more convenient to use, and can really achieve the purpose of the invention.

It can be understood that the guide posts 74 referred to in the first embodiment are located at the second ends 736 of the magnet holder rails 734, and in practical terms, should be understood to be adjacent to or near the second ends 736, and it is not limited to two guide posts 74 falling at the second ends 736 at the same time and completely. In another modification, the number of resistance stages at which the magnetic resistance starts to be generated can be changed by slightly changing the shape, size, or orientation of the magnet holder rail 734, and the magnetic resistance starts to be generated from the middle resistance stage without being limited.

Referring to fig. 10, the first embodiment of the exercise machine 1 of the present invention is a flywheel exercise bicycle, and the exercise machine 1 includes a frame unit 10, a force application set 20, a handrail 30, a saddle 40, and a resistance device 500.

The rack unit 10 extends in the front-rear direction X. The force application set 20 is two pedals and is operatively disposed at the rear end of the frame unit 10, and is respectively used for being pedaled by two feet of the trainer. The armrest 30 is disposed at the front end of the frame unit 10 and is used for holding by both hands of the trainer. The saddle 40 is provided to the frame unit 10 and is used for a trainee to ride.

The resistance device 500 is installed at the front end of the frame unit 10 and connected to the force application set 20 through a chain-sprocket set (not shown), and the resistance device 500 is used for generating resistance to the force application set 20.

Referring to fig. 11, the second embodiment of the present invention is similar to the first embodiment, with the difference that:

the exercise machine 1' is a rowing machine, and includes a frame unit 10', a force application unit 20' provided to the frame unit 10', a saddle 40' for seating, and the resistance device 500. The trainer sits on the saddle 40 'and applies force to the force application group 20' by using both hands, and can simulate various rowing situations through the resistance device 500, and not only can train the abdomen, but also can drive the core muscle group by the lower body and link the upper body muscle group, thereby improving the exercise effect.

Referring to fig. 12, a third embodiment of the present invention is similar to the first embodiment with the difference that:

the exercise machine 1 "is a ski machine, and includes a frame unit 10", a force application set 20 "disposed on the frame unit 10", and the resistance device 500. During the training process, the lower limb needs to stand stably, and the two hands are used for applying force to the force application group 20 ", so that various skiing slopes can be simulated through the resistance device 500, and the training of the upper limb including triceps, back and core can be enhanced.

Thus, the resistance device 500 of the present invention can be applied to a flywheel exercise bike, a rowing machine, a skiing machine, a straight exercise bike, a recumbent exercise bike, a walker, an elliptical machine, or other types of resistance exercise equipment, but not limited thereto.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A resistance device of an exercise machine, characterized in that: the wind resistance unit and the magnetic resistance unit are included;

the guide post is connected with the air volume adjusting disc, penetrates through the guide disc track and extends into the magnetic seat track, and can move in the magnetic seat track along with the rotation of the air volume adjusting disc so as to drive the magnetic seat to pivot relative to the guide rail disc, so that the magnetic resistance between the magnetic seat and the metal ring sheet is adjusted.

2. The resistance device of an exercise machine according to claim 1, wherein: the magnetic base track is provided with a first end, a second end opposite to the first end and a turning part positioned between the first end and the second end; when the guide post is positioned at the second end, the resistance device of the body-building machine only generates wind resistance, and when the guide post slides from the second end and passes through the turning part, the resistance device of the body-building machine simultaneously generates wind resistance and magnetic resistance.

3. The resistance device of an exercise machine according to claim 2, wherein: the magnetic base also has a pivot point pivoted to the guide rail disc and a magnetic area far away from the pivot point and used for generating magnetic resistance with the metal ring sheet, the magnetic base track extends from the pivot point to the direction of the magnetic area, the position of the magnetic base track close to the magnetic area is bent, and the magnetic resistance generated when the guide post slides to the first end is larger than the magnetic resistance generated when the guide post slides to the second end.

4. The resistance device of an exercise machine according to claim 3, wherein: the at least one magnetic seat is provided with a seat body pivoted to the guide rail disc and at least one magnetic piece arranged on the seat body, the seat body is provided with the magnetic seat track, the magnetic piece forms the magnetic area, and when the guide pillar is positioned at the first end, the projection of the magnetic piece is overlapped with the metal ring sheet; when the guide post is located at the second end of the magnetic seat track, the projection of the magnetic member does not fall within the range of the metal ring sheet.

5. The resistance device of an exercise machine according to claim 1, wherein: the magnetic resistance unit comprises two magnetic seats and two guide posts, and the magnetic seats are symmetrically arranged by taking the axis of the rotating shaft as a center.

6. The resistance device of an exercise machine according to claim 5, wherein: each magnetic seat is provided with a seat body pivoted on the guide rail disc and at least one magnetic piece arranged on the seat body.

7. The resistance device of an exercise machine according to claim 1, wherein: the magnetic seat is positioned between the guide rail disc and the metal ring sheet on the axis of the rotating shaft.

8. The resistance device of an exercise machine according to claim 1, wherein: the wind resistance unit also comprises an indicator fixed on the wind volume adjusting disc, and the indicator is exposed out of the shell and used for marking the number of resistance sections.

9. The resistance device of an exercise machine according to claim 1, wherein: the metal ring sheet is in a ring shape, the guide rail disc is in a disc shape, and the central axis of the metal ring sheet is overlapped with the central axis of the guide rail disc.

10. An exercise machine comprising:

a frame unit;

a force application set operatively disposed on the rack unit; and

a resistance device for an exercise machine according to any one of claims 1 to 9 for generating resistance and mounted to the frame unit and connected to the force applying assembly.