Resistance exercise device

Abstract

The application discloses a resistance type bodybuilding equipment, which comprises a bodybuilding equipment main body, a training rope and a vortex spring resistance device. One end of the training rope is located outside the bodybuilding equipment main body and is connected with a handle, and the other end of the training rope extends into the bodybuilding equipment main body. The vortex spring resistance device comprises a driving gear and a plurality of driven gears. The driving gear is rotatably arranged on a rotating shaft through an inner hole. The inner hole of the driving gear is provided with an annular protruding part in the axial direction. The end of the training rope extending into the bodybuilding equipment main body is wound on the protruding part. The driven gears are arranged around the driving gear and are located on the same plane. The driven gears are coaxially connected with the vortex springs. Each driven gear is connected with a linear motion device on the side. The moving direction of the linear motion device is the direction of the connecting line between the driven gears and the driving gear. One end of the vortex spring is connected on the linear motion device. The other end of the vortex spring is coaxially connected with the driven gear.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of fitness equipment, and relates to a resistance type fitness equipment. BACKGROUND

[0002] With the development of economy and the increasing of living standards, more and more people begin to pay attention to fitness and shaping, and the demand for home fitness is increasing. Common home fitness products such as treadmills, bicycles and the like are mostly aerobic equipment, and traditional strength fitness equipment is mostly frame structure, using metal blocks as counterweights, which is large in area and very heavy, and is inconvenient to place at home. Although there is now a scheme of using a motor to provide a pulling force to replace the traditional metal block as a counterweight, if sufficient pulling force is to be provided, the volume of the motor is still large, and an encoder, a driver and the like are needed as a matching set, the pulling force, speed, acceleration and the like of the pulling rope are detected in real time, and a complex algorithm is combined to control the output torque of the motor in real time. The device of this scheme is still large in volume, high in cost and complex in control, and is not convenient for popularization. SUMMARY

[0003] The present application aims to overcome the shortcomings of the prior art, and provides a resistance type fitness equipment, which reduces the weight, volume and cost of the fitness device as a whole.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] A resistance type fitness equipment, comprising a fitness equipment main body, a training rope and a spiral spring resistance device;

[0006] One end of the training rope is located outside the fitness equipment main body and is connected with a handle, and the other end extends into the interior of the fitness equipment main body;

[0007] The spiral spring resistance device is located in the interior of the fitness equipment main body, the spiral spring resistance device comprises one driving gear and a plurality of driven gears, the interior of the fitness equipment main body is provided with a rotating shaft, the center of the driving gear is provided with an inner hole which is nested on the rotating shaft, the driving gear is rotationally connected with the rotating shaft, the inner hole of the driving gear is provided with an axially annular protruding portion, and one end of the training rope extending into the interior of the fitness equipment main body is wound on the protruding portion;

[0008] The driven gears are arranged around the driving gear and located on the same plane, each driven gear is coaxially connected with a spiral spring, each driven gear is connected with a linear motion device on the side surface, the moving direction of the linear motion device is the direction of the connecting line between the driven gear and the driving gear, one end of the spiral spring is connected on the linear motion device, and the other end of the spiral spring is coaxially connected with the driven gear.

[0009] Preferably, two swing arms are arranged on the two sides of the body of the fitness equipment respectively, one end of each swing arm is a hinged end, the hinged end is rotationally hinged with the side of the body of the fitness equipment, and the other end is a free end; the training ropes are two, one training rope is arranged in each swing arm, one end of each training rope extends out of the free end of the swing arm and is connected with a handle, and the other end of each training rope extends out of the hinged end of the swing arm and extends into the body of the fitness equipment.

[0010] Preferably, the linear motion device comprises a driving device and a sliding plate, and the output end of the driving device is connected with the sliding plate.

[0011] Further, the driving device is a motor, the output end of the motor is threadedly connected with the sliding plate, the bottom of the sliding plate is slidingly connected with a sliding rail, and the sliding rail is fixed in the body of the fitness equipment and the bottom of the sliding plate is buckled on the sliding rail.

[0012] Still further, the output end of the motor is threadedly connected with a push-pull rod which is perpendicular to the output end of the motor, the push-pull rod is provided with springs which are parallel to the output end of the motor at two ends, one end of each spring is connected with the push-pull rod, and the other end of each spring is connected with the sliding plate.

[0013] Preferably, the body of the fitness equipment is provided with a control module, and the control module is electrically connected with each linear motion device.

[0014] Further, two position detection modules are arranged beside each driven gear in the body of the fitness equipment, the output end of each position detection module is connected with the input end of the control module, one of the position detection modules is located at a measuring point when the driven gear meshes with the driving gear, and the other position detection module is located at a measuring point after the driven gear moves away from the driving gear.

[0015] Preferably, the number of the driven gears is multiple, and the resistances of the vortex springs connected with each driven gear are different.

[0016] Further, the number of the driven gears is six, and the resistances of the vortex springs connected with the six driven gears are in the relationship of 1 unit, 2 units, 4 units, 8 units, 16 units and 32 units.

[0017] Preferably, the body of the fitness equipment is provided with a mounting plate.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The present application controls the linear motion device, meshes the driven gear with the driving gear, and the fitness person pulls the training rope to drive the driving gear to rotate, the vortex spring on the driven gear provides resistance to the rotation of the driving gear, the fitness person feels the resistance to move, and the fitness effect is achieved, the vortex spring is simple in processing, small in size, light in weight and low in cost, the weight of the fitness device is reduced, the size is reduced, and the cost is reduced.

[0020] Further, two swing arms are arranged on both sides of the body of the fitness equipment, and the two arms can be periodically exercised left and right.

[0021] Further, the spring can continuously provide tension when the driven gear and the driving gear tooth tip are in contact, and after the driving gear rotates a certain angle to make the tooth tips stagger, the driven gear is pulled to continue to approach the driving gear, so that the driven gear and the driving gear are fully engaged.

[0022] Further, the control module can control the start and stop and movement direction of the linear motion device, facilitate control, and after the position detection module detects that the driven gear is located away from the point or the engagement point, the linear motion device is automatically controlled to stop through the pre-set program, to prevent damage to the components.

[0023] Further, the resistances of the plurality of spiral springs are different, the number of driven gears is controlled by the approaching or away control of the linear motion device, so that different resistance sizes are combined, various and variable resistance outputs are realized, and fitness needs of different muscle strength are realized. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a front view of the portable fitness device of the present application;

[0025] Figure 2 is an internal structure view of the portable fitness device of the present application;

[0026] Figure 3 is a structure schematic view of the spiral spring resistance device of the present application;

[0027] Figure 4 is an internal structure schematic view of the spiral spring resistance device of the present application;

[0028] Figure 5 is a structure schematic view of the linear motion device of the present application;

[0029] Figure 6 is a schematic view of the driven gear away from the driving gear of the present application.

[0030] 1 - fitness equipment body; 2 - swing arm; 3 - training rope; 4 - control module; 5 - handle; 6 - driving gear; 7 - driven gear; 8 - driving device; 9 - push-pull rod; 10 - spring; 11 - slide plate; 12 - slide rail; 13 - spiral spring; 14 - position detection module; 15 - limit block; 16 - round shaft. DETAILED DESCRIPTION

[0031] Clearly, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments; based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0034] As shown in Figure 1 and Figure 2 The resistance type fitness equipment described in the present application comprises a fitness equipment body 1, swing arms 2, a vortex spring resistance device, training ropes 3 and a control module 4.

[0035] Two swing arms 2 are arranged on the two sides of the fitness equipment body 1 respectively, one end of each swing arm 2 is a hinged end, the hinged end is rotationally hinged to the side surface of the fitness equipment body 1, and the other end is a free end; the training ropes 3 are two, one training rope 3 is arranged in each swing arm 2, and one end of the training rope 3 extending out of the free end of the swing arm 2 is connected with a handle 5, as shown in Figure 2 The other end of the training rope 3 extending out of the hinged end of the swing arm 2 extends into the fitness equipment body 1, and each training rope 3 is connected with a vortex spring resistance device.

[0036] A fixed pulley is arranged on the training rope 3 on the inner side of the fitness equipment body 1 close to the hinged end and directly above the driving gear 6.

[0037] An installation plate is arranged on the outer side of the fitness equipment body 1 for fixing the fitness equipment body 1 on a wall surface or other object.

[0038] The vortex spring resistance device is located in the inner side of the fitness equipment body 1, and the vortex spring resistance device comprises a driving gear 6 and a plurality of driven gears 7. A rotating shaft is arranged in the inner side of the fitness equipment body 1, an inner hole of the driving gear 6 is arranged at the center of the driving gear 6 and is nested on the rotating shaft, the inner hole is rotationally connected with the rotating shaft, the inner hole of the driving gear 6 is provided with an axially annular protruding part, and one end of the training rope 3 extending into the inner side of the fitness equipment body 1 is wound on the protruding part.

[0039] As shown in Figure 3 The driven gear 7 is arranged around the driving gear 6 and both are located in the same plane, each driven gear 7 is coaxially connected with a spiral spring 13, each driven gear 7 is connected with a linear motion device on the side, the moving direction of the linear motion device is the direction of the axis connecting line of the driven gear 7 and the driving gear 6, the linear motion device is connected with one end of the spiral spring 13, the other end of the spiral spring 13 is coaxially connected with the driven gear 7.

[0040] As shown in Figure 4 The sliding plate 11 is provided with a circular shaft 16, the driven gear 7 is rotatably arranged on the circular shaft 16 through a bearing, one side of the inner hole of the driven gear 7 is provided with a protruding part, the spiral spring 13 is sleeved on the protruding part of the inner hole of the driven gear 7, one end of the spiral spring 13 is mechanically connected with the protruding part of the inner hole of the driven gear 7, the other end of the spiral spring 13 is mechanically connected with the sliding plate 11, the driven gear 7 rotates to drive the spiral spring 13 to tighten or expand.

[0041] The linear motion device includes a driving device 8 and a sliding plate 11, the output end of the driving device 8 is connected with the sliding plate 11, the driven gear 7 and the spiral spring 13 are located on the sliding plate 11.

[0042] The output end of the driving device 8 is connected with the sliding plate 11, the bottom of the sliding plate 11 is slidably connected with a slide rail 12, the slide rail 12 is fixed in the body of the fitness equipment 1, and the bottom of the sliding plate 11 is buckled on the slide rail 12.

[0043] The output end of the driving device 8 is connected with a push-pull rod 9 perpendicular to the driving device 8, the push-pull rod 9 is provided with a spring 10 parallel to the output end of the motor at both ends, one end of the spring 10 is connected with the push-pull rod 9, and the other end of the spring 10 is connected with the sliding plate 11.

[0044] The preferred driving device 8 of the embodiment adopts a motor, the motor is fixedly arranged on the body of the fitness equipment 1, the push-pull rod 9 is provided with a screw hole, and the output screw rod of the motor is matched with the screw hole.

[0045] The body of the fitness equipment 1 is provided with a control module 4, the control module 4 is electrically connected with each linear motion device, the control module 4 is used for controlling the forward rotation or reverse rotation of the motor, the push-pull movement of the push-pull rod 9, the sliding of the sliding plate 11 on the slide rail 12 after being conducted through the spring 10, and the meshing or non-meshing of the driven gear 7 and the driving gear 6. The control module 4 in the embodiment preferably adopts an STM32 series CPU.

[0046] Inside the main body 1 of the fitness equipment, two position detection modules 14 are set next to each driven gear 7. The output end of the position detection module 14 is connected to the input end of the control module 4. One position detection module 14 is located at the measurement point when the driven gear 7 and the driving gear 6 are engaged, and the other position detection module 14 is located at the measurement point when the driven gear 7 and the driving gear 6 are far apart. When the position detection module 14 detects that the push-pull rod 9 has reached the preset position, it feeds back to the control module 4, and the control module 4 controls the motor to stop rotating in the same direction as before.

[0047] There are multiple driven gears 7, and the resistance of the scroll spring 13 connected to each driven gear 7 is different. In this embodiment, the preferred number of driven gears 7 is six, and the resistance of the scroll spring 13 connected to the six driven gears 7 is in the relationship of 1 unit, 2 units, 4 units, 8 units, 16 units, and 32 units. By determining whether the driven gears 7 and the driving gear 6 are engaged, resistance ranging from 0 to 63 units can be output in 1-unit increments. It should be noted that the above preset is only one scenario and does not constitute a limitation on other presets or scenarios.

[0048] Limiting blocks 15 are also provided on the front and rear sides of the sliding plate 11 in the direction of movement to limit the sliding plate 11 from sliding off the slide rail 12.

[0049] like Figure 5 The diagram shows a partial structural schematic of the linear motion device in which the spring 10 is in a stretched state. At this time, the spring 10 pulls the slide plate 11 closer to the driving gear 6, causing the driven gear 7 on the slide plate 11 to also move closer to the driving gear 6 and mesh with the driving gear 6.

[0050] like Figure 6 The diagram shows a partial structural schematic of the linear motion device in which the spring 10 is in a compressed state. At this time, the spring 10 pushes the slide plate 11 away from the driving gear 6, so that the driven gear 7 on the slide plate 11 also moves away from the driving gear 6 and does not mesh with the driving gear 6.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the technology should be determined, not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated by reference for all purposes. The omission in the foregoing description of any aspect of the subject matter disclosed herein is not a disclaimer of such subject matter, nor should it be regarded that the applicant has disclaimed any such subject matter, nor should any such omission be regarded as affecting the scope of the claimed teaching.

Claims

1. A resistance-type fitness device, characterized in that, Includes the main body of the fitness equipment (1), training rope (3) and a spiral spring resistance device; One end of the training rope (3) is located outside the main body (1) of the fitness equipment and is connected to a handle (5), while the other end extends into the main body (1) of the fitness equipment. The spiral spring resistance device is located inside the main body (1) of the fitness equipment. The spiral spring resistance device includes a driving gear (6) and multiple driven gears (7). The resistance of the spiral spring (13) connected to each driven gear (7) is different. A rotating shaft is provided inside the main body (1) of the fitness equipment. An inner hole is provided in the center of the driving gear (6). The driving gear (6) is sleeved on the rotating shaft through the inner hole. The driving gear (6) is rotatably connected to the rotating shaft. An axial annular protrusion is provided in the inner hole of the driving gear (6). One end of the training rope (3) extends into the main body (1) of the fitness equipment and is wrapped around the protrusion. The driven gear (7) is arranged around the driving gear (6) and the two are located on the same plane. Each driven gear (7) is coaxially connected to a spiral spring (13). Each driven gear (7) is connected to a linear motion device on its side. The linear motion device moves along the line connecting the axes of the driven gear (7) and the driving gear (6). One end of the spiral spring (13) is connected to the linear motion device, and the other end of the spiral spring (13) is coaxially connected to the driven gear (7). The main body (1) of the fitness equipment is equipped with a control module (4), which is electrically connected to each linear motion device.

2. The resistance fitness equipment according to claim 1, characterized in that, Two swing arms (2) are provided on both sides of the main body (1) of the fitness equipment. One end of each swing arm (2) is a hinge end, which is rotatably hinged to the side of the main body (1) of the fitness equipment, and the other end is a free end. There are two training ropes (3). Each swing arm (2) is equipped with a training rope (3). One end of the training rope (3) extends out of the free end of the swing arm (2) and is connected to a handle (5). The other end of the training rope (3) extends out of the hinge end of the swing arm (2) and extends into the interior of the main body (1) of the fitness equipment.

3. The resistance fitness equipment according to claim 1, characterized in that, The linear motion device includes a drive unit (8) and a slide plate (11). The output end of the drive unit (8) is connected to the slide plate (11), and the driven gear (7) and the spiral spring (13) are located on the slide plate (11).

4. The resistance-type fitness equipment according to claim 3, characterized in that, The drive device (8) uses a motor. The motor output end is threadedly connected to the slide plate (11). The bottom of the slide plate (11) is slidably connected to the slide rail (12). The slide rail (12) is fixed inside the main body (1) of the fitness equipment. The bottom of the slide plate (11) is fastened to the slide rail (12).

5. The resistance fitness equipment according to claim 4, characterized in that, The motor output end is threadedly connected to a push-pull rod (9) perpendicular to it. The two ends of the push-pull rod (9) are respectively provided with springs (10) parallel to the motor output end. One end of the spring (10) is connected to the push-pull rod (9), and the other end is connected to the slide plate (11).

6. The resistance fitness equipment according to claim 1, characterized in that, Inside the main body (1) of the fitness equipment, two position detection modules (14) are set next to each driven gear (7). The output end of the position detection module (14) is connected to the input end of the control module (4). One position detection module (14) is located at the measurement point when the driven gear (7) meshes with the driving gear (6), and the other position detection module (14) is located at the measurement point after the driven gear (7) and the driving gear (6) move away from each other.

7. The resistance fitness equipment according to claim 1, characterized in that, The number of driven gears (7) is six, and the resistance of the spiral springs (13) connected to the six driven gears (7) is 1 unit, 2 units, 4 units, 8 units, 16 units and 32 units respectively.

8. The resistance fitness equipment according to claim 1, characterized in that, The main body of the fitness equipment (1) has an external mounting plate.

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