A strength training apparatus

Abstract

The present application relates to the technical field of fitness equipment, and discloses a strength training equipment, which comprises a rack assembly, a resistance device, a pull rope, a sliding guide, a movable wheel frame and a handle; the resistance device is connected with the rack assembly; the sliding guide is connected with the rack assembly; the movable wheel frame is movably connected with the sliding guide and can slide along the sliding guide; the fixed end of the pull rope is connected with the resistance device; the free end of the pull rope is connected with the handle; and the part of the rope between the fixed end and the free end is arranged around the movable wheel frame; the movable wheel frame can move horizontally relative to the rack assembly, so as to adjust the position of the pull rope, thereby solving the problem that the initial position of the handle cannot be adjusted due to the fixed setting of the pull rope outlet.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fitness equipment, in particular to a strength training equipment. BACKGROUND

[0002] With the continuous improvement of living standards, people pay more and more attention to the health of the body, and the importance of exercise has also attracted people's attention. The exercise method is mainly divided into aerobic exercise and anaerobic exercise, and anaerobic exercise mainly includes some strength training. Through these strength training, the muscle content can be improved, and the metabolism in the body can be accelerated, and the physical quality of people can be improved.

[0003] The conventional strength training is mainly realized through self-weight equipment or weight equipment. The self-weight equipment generally includes barbells, dumbbells and the like.

[0004] The existing weight equipment is usually provided with a resistance source and a pull rope. The resistance source provides a load for the pull rope, and a user realizes strength training by pulling the pull rope. Different groups of people have different needs for the position of the handle of the weight equipment when doing some training actions (such as dumbbell curl), so as to achieve an ideal training effect. At present, the pull rope outlet of the weight equipment is usually arranged at a fixed position, so that the starting position of the handle cannot be adjusted, which limits the training posture, position and amplitude of the user, and leads to an undesirable training effect. SUMMARY

[0005] The embodiments of the present application aim to provide a strength training equipment to solve the technical problem in the prior art that the pull rope outlet is arranged at a fixed position, so that the starting position of the handle cannot be adjusted.

[0006] The embodiments of the present application solve the technical problem thereof by adopting the following technical scheme: a strength training equipment is provided, characterized in that it comprises a rack assembly, a resistance device, a pull rope, a sliding guide, a movable wheel frame and a handle. The resistance device is connected to the rack assembly, the sliding guide is connected to the rack assembly, the movable wheel frame is movably connected to the sliding guide and can slide along the sliding guide, the fixed end of the pull rope is connected to the resistance device, the free end of the pull rope is connected to the handle, and the part of the rope between the fixed end and the free end is wound around the movable wheel frame. The movable wheel frame can move horizontally relative to the rack assembly to adjust the outlet position of the pull rope.

[0007] In some embodiments, the sliding guide comprises an adjusting rod, and the movable wheel frame comprises an adjusting sleeve. The extending direction of the adjusting rod is parallel to the direction in which the movable wheel frame moves horizontally, and the adjusting sleeve is sleeved on the adjusting rod.

[0008] In some embodiments, the sliding guide comprises a sliding rail; the sliding rail extends in a direction parallel to the horizontal movement direction of the movable wheel frame; the movable wheel frame is arranged in the sliding rail and is movable in the sliding rail.

[0009] In some embodiments, a limiting post is protruded from the inner wall of the lower part of the adjusting sleeve; the lower part of the adjusting rod is provided with adjusting holes, and at least two adjusting holes are arranged along the extending direction of the adjusting rod; the movable wheel frame is vertically movable relative to the frame assembly, wherein the limiting post extends into the adjusting hole when vertically moved to a first position, and the limiting post exits the adjusting hole when vertically moved to a second position.

[0010] In some embodiments, the inner hole of the adjusting sleeve is larger than the size of the adjusting rod in the vertical direction.

[0011] In some embodiments, the limiting post is elongatable or shortenable, wherein the limiting post protrudes from the inner wall of the lower part of the adjusting sleeve when elongated, and does not protrude from the inner wall of the lower part of the adjusting sleeve when shortened.

[0012] In some embodiments, the inner hole of the adjusting sleeve is equal to the size of the adjusting rod in the vertical direction.

[0013] In some embodiments, the adjusting rod is a screw rod, and the screw rod is rotationally connected to the frame body; the inner hole of the adjusting sleeve is a screw hole, and the adjusting sleeve is screwed with the screw rod.

[0014] In some embodiments, the frame assembly further comprises a handle or a rotary motor; the handle or the rotary motor is connected to the screw rod.

[0015] In some embodiments, the movable wheel frame further comprises a pulley seat and a pulley; the pulley seat is connected to the adjusting sleeve, the pulley is rotationally connected to the pulley seat, and the rope segment between the resistance device and the handle is wound around the pulley.

[0016] In some embodiments, the frame assembly comprises a pedal; the pedal is provided with a guide groove; the extending direction of the guide groove is parallel to the horizontal movement direction of the movable wheel frame; and the rope segment between the movable wheel frame and the handle is threaded through the guide groove.

[0017] In some embodiments, the movable wheel frame comprises a guide sleeve; the guide sleeve extends into the guide groove, the rope segment between the movable wheel frame and the handle is threaded through the guide sleeve, and the guide sleeve is used to block the movement of the handle towards the resistance device.

[0018] In some embodiments, the inner wall of the guide sleeve is smooth; the inner hole of the guide sleeve gradually increases in diameter from the middle to the two ends.

[0019] In some embodiments, the resistance device is arranged on the axial side or the radial side of the sliding guide.

[0020] In some embodiments, the rack assembly further comprises a pulley set; the part of the rope between the resistance device and the movable wheel frame is wound around the pulley set.

[0021] In some embodiments, the rope has two, the handle has two, the fixed ends of the two ropes are wound around the resistance device, and the free ends of the two ropes are connected to the two handles respectively; or, the rope has only one, and the handle has only one.

[0022] In some embodiments, the movable wheel frame has two, the part of the rope is wound around the two movable wheel frames respectively, and the directions of the horizontal movement of the two movable wheel frames are parallel or at an angle; or, the movable wheel frame has only one, the part of the rope is wound around the movable wheel frame, and the direction of the horizontal movement of the movable wheel frame is parallel or at an angle to at least one side of the rack assembly.

[0023] In some embodiments, the resistance device has two; the fixed ends of the two ropes are wound around the two resistance devices respectively; the two resistance devices each comprise a motor and a winding wheel; the winding wheel is connected to the output shaft of the motor; and the two ropes are wound around the winding wheels of the two resistance devices respectively.

[0024] In some embodiments, the resistance device comprises a motor, a winding wheel and a resistance distribution device; the winding wheel has two; the resistance distribution device is connected to the output shaft of the motor, the two winding wheels are connected to the resistance distribution device, and the fixed ends of the two ropes are wound around the two winding wheels respectively.

[0025] In some embodiments, the resistance distribution device comprises a differential.

[0026] Compared with the prior art, in the strength training apparatus provided in the embodiments of the present application, the part of the rope between the fixed end and the free end of the rope is wound around the movable wheel frame, the movable wheel frame can move horizontally, the position of the part of the rope between the fixed end and the free end of the rope is adjusted, and the rope exit position is adjusted, so as to solve the problem that the initial position of the handle cannot be adjusted due to the fixed position of the rope exit. The strength training apparatus provided in the present application can adapt to the training posture, training position and training amplitude of the user, and greatly improves the training effect and use experience. BRIEF DESCRIPTION OF DRAWINGS

[0027] One or more embodiments are illustrated by way of example in the figures that form a part of this disclosure and which demonstrates, by way of illustration, specific embodiments. In the drawings:

[0028] Figure 1 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0029] Figure 2 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application; Figure 1 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0030] Figure 3 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0031] Figure 4 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application; Figure 1 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0032] Figure 5 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0033] Figure 6 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application; Figure 5 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0034] Figure 7 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application; Figure 1 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0035] Figure 8 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application; Figure 7 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0036] Figure 9 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application; Figure 1 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0037] Figure 10 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application; Figure 1 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0038] Figure 11 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0039] Figure 12 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application; Figure 11 is a structural schematic diagram of a strength training apparatus provided by Embodiment 1 of the present application;

[0040] Figure 13 is a structural schematic view of a movable wheel frame of a strength training apparatus provided in Embodiment 2 of the present application;

[0041] Figure 14 is Figure 13 a structural schematic view of a strength training apparatus. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "connected" to another element, it can be directly on the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "left", "right", "top", "bottom", "top", "bottom", and the like as used in this specification refer to the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0043] Unless otherwise defined, all technical and scientific terms used in the present specification have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0044] Embodiment 1

[0045] Referring to Figure 1 and Figure 2 , Embodiment 1 of the present application provides a strength training apparatus, which includes a frame assembly 1, a resistance device 2, a pull rope 3, a handle 4, a movable wheel frame 5, and a sliding guide 6. The resistance device 2 is connected to the frame assembly 1. One end of the pull rope 3 is a fixed end, and the other end is a free end. The fixed end of the pull rope 3 is connected to the resistance device 2, the free end of the pull rope 3 is connected to the handle 4, and the portion of the rope between the fixed end and the free end of the pull rope 3 is wound around the movable wheel frame 5. The sliding guide 6 is connected to the frame assembly 1, the movable wheel frame 5 is movably connected to the sliding guide 6 and can slide along the sliding guide 6, and the free end of the pull rope 3 passes through the frame assembly 1 after winding around the movable wheel frame 5.

[0046] The extension direction of the sliding guide 6 is parallel to the plane on which the frame assembly 1 is located or the support surface of the frame assembly 1.

[0047] When the handle 4 is pulled to move in a direction away from the rack assembly 1, the handle 4 drives the pull rope 3 to move in a direction away from the resistance device 2, the resistance device 2 provides resistance to hinder the pull rope 3 from moving away from the resistance device 2, which can simulate a weight to train the strength of the user; when the handle 4 is released or returned to the initial position, the resistance device 2 drives the pull rope 3 to move in a direction close to the resistance device 2, and the pull rope 3 drives the handle 4 to move in a direction close to the rack assembly 1.

[0048] The movable wheel frame 5 can move horizontally relative to the rack assembly 1 to adjust the position of the partial rope section between the free end of the pull rope 3 and the movable wheel frame 5, so as to adjust the rope exit position of the pull rope 3.

[0049] It should be noted that the rope exit position of the pull rope 3 is the position when the pull rope 3 exits or enters the rack assembly 1.

[0050] In an embodiment, the resistance device 2, the pull rope 3, the handle 4 and the movable wheel frame 5 all have two. The fixed ends of the two pull ropes 3 are respectively connected to the two resistance devices 2, the free ends of the two pull ropes 3 are respectively connected to the two handles 4, and the partial rope sections of the two pull ropes 3 are respectively arranged on the two movable wheel frames 5.

[0051] The horizontal moving directions of the two movable wheel frames 5 are parallel or at an angle, for example, the horizontal moving directions of the two movable wheel frames 5 are parallel to or at an angle with at least one side of the rack assembly, preferably parallel to the long side of the rack assembly, and the angle may be more suitable for the training trajectory of the user or specific training action to adapt to the training posture of the user. When the two movable wheel frames 5 are close to each other, the rope exit positions of the two pull ropes 3 are also close to each other; when the two movable wheel frames 5 are away from each other, the rope exit positions of the two pull ropes 3 are also away from each other. Thus, the interval between the rope exit positions of the two pull ropes 3 can be adjusted.

[0052] It can be understood that the movable wheel frame 5 is not limited to two, and in some other embodiments, one pull rope 3 is arranged on the movable wheel frame 5, and the rope exit position of the other pull rope 3 is arranged above the resistance device 2 connected by the pull rope 3. When the movable wheel frame 5 moves horizontally, the rope exit positions of the two pull ropes 3 are close to or away from each other, so that the interval between the rope exit positions of the two pull ropes 3 can also be adjusted.

[0053] In another embodiment, there can be only one resistance device 2, pull rope 3, handle 4 and movable wheel frame 5, the fixed end of the pull rope 3 is connected to the resistance device 2, the free end of the pull rope 3 is connected to the handle 4, and the partial rope section of the pull rope 3 is arranged on the movable wheel frame 5. The horizontal moving direction of the movable wheel frame 5 is parallel to or at an angle with at least one side of the rack assembly 1, and the angle is greater than 0° and less than 90°.

[0054] The rack assembly 1 comprises a rack body 10, a pedal 11, support feet 12 and a pulley set 14. The pedal 11 is arranged on the upper side of the rack body 10, and is used for standing by a user. The support feet 12 are arranged on the lower side of the rack body 10, and are used for supporting the rack body 10. The sliding guide 6 is connected to the rack body 10, and is used for slidingly connecting the movable wheel frame 5. The pulley set 14 is connected to the rack body 10, and the portion of the pull rope 3 between the resistance device 2 and the movable wheel frame 5 is arranged around the pulley set 14. The pulley set 14 changes the direction of the portion of the pull rope 3, and can drive the pulleys in the pulley set 14 to rotate when the pull rope 3 moves. The friction of the pull rope 3 is rolling friction, and the friction is small, so the pull rope 3 is not easy to wear and tear, and the pull rope 3 moves smoothly and is not easy to jam.

[0055] The resistance device 2 is connected to the rack body 10, and the handle 4 is arranged on the upper side of the pedal 11. The portion of the pull rope 3 between the free end and the movable wheel frame 5 is arranged through the pedal 11.

[0056] The pedal 11 is provided with a guide groove 110. The extension direction of the guide groove 110 is parallel to the horizontal movement direction of the movable wheel frame 5. A user can stand on the pedal 11 to train, and the pedal 11 can provide stable support and can also shield the internal components such as the resistance device 2, the movable wheel frame 5 and the sliding guide 6, so that the appearance consistency is good. The portion of the pull rope 3 between the free end and the movable wheel frame 5 is arranged through the guide groove 110, and the guide groove 110 is used for the pull rope 3 to pass in and out.

[0057] The movable wheel frame 5 is at least partially located in the same vertical plane as the guide groove 110. Specifically, a part of the movable wheel frame 5 extends into the guide groove 110, and the guide groove 110 can guide the movement of the movable wheel frame 5.

[0058] The guide groove 110 has two. The two guide grooves 110 are arranged in parallel and on the same straight line, and the straight line is parallel to the horizontal movement direction of the movable wheel frame 5. The two guide grooves 110 are respectively used for the two pull ropes 3 to pass through.

[0059] According to actual needs, the two guide grooves 110 can also be arranged at an angle, as long as the extension direction of the guide groove 110 is consistent with the movement direction of the movable wheel frame 5.

[0060] The support feet 12 can have four. The four support feet 12 are respectively arranged at the four corners of the rack body 10.

[0061] The sliding guide 6 comprises an adjusting rod 61. The movable wheel frame 5 is sleeved on the outer periphery of the adjusting rod 61.

[0062] In some other embodiments, the sliding guide 6 comprises a sliding rail. The movable wheel frame 5 is arranged in the sliding rail and is movable in the sliding rail.

[0063] The resistance device 2 is arranged at an axial side or a radial side of the sliding guide 6.

[0064] In an embodiment, the resistance device 2 is arranged at a radial side of the sliding guide 6.

[0065] It can be understood that the resistance device 2 is not limited to be arranged at a radial side of the sliding guide 6. According to actual needs, the resistance device 2 can be arranged at an axial side of the sliding guide 6, as shown in some other embodiments. Figure 3

[0066] Compared with the resistance device 2 arranged at a radial side of the sliding guide 6, by arranging the resistance device 2 at an axial side of the sliding guide 6, the resistance device 2 is located on the extension line of the track of the movable wheel frame 5, no matter where the movable wheel frame 5 moves horizontally to the sliding guide 6, the part of the rope between the fixed end and the movable wheel frame 5 of the pulling rope 3 is always parallel to the track of the movable wheel frame 5, and the pulling rope 3 does not have the risk of winding on the rack body 10, so that the part of the rope between the fixed end and the movable wheel frame 5 of the pulling rope 3 does not need to be wound on the pulley block 14, the pulley block 14 can be omitted, and the cost is lower. Of course, according to actual needs, the pulley block 14 can also not be omitted. The space at the axial side of the sliding guide 6 is not occupied by the resistance device 2, and the width of the rack assembly 1 can be arranged to be shorter.

[0067] Compared with the resistance device 2 arranged at an axial side of the sliding guide 6, by arranging the resistance device 2 at a radial side of the sliding guide 6, the space at the axial side of the sliding guide 6 is not occupied by the resistance device 2, and the length of the rack assembly 1 can be arranged to be shorter.

[0068] The sliding guide 6 has two. The two sliding guides 6 are spaced apart and are both arranged on the same straight line, which is parallel to the direction in which the movable wheel frame 5 moves horizontally. The two sliding guides 6 are movably connected to the two movable wheel frames 5, respectively.

[0069] Please refer to Figure 4 , the two resistance devices 2 each comprise a motor 20, a winding wheel 21 and a motor mounting frame 22. The motor 20 is connected to the rack body 10 through the motor mounting frame 22, the winding wheel 21 is connected to the output shaft of the motor 20, the axis of the winding wheel 21 coincides with the output shaft of the motor 20, and the winding wheel 21 and the motor 20 are fixed in the circumferential direction. The fixed ends of the two pulling ropes 3 are wound on the winding wheels 21 of the two resistance devices 2, respectively, so as to realize that the fixed ends of the two pulling ropes 3 are connected to the two resistance devices 2, respectively.

[0070] ​When the handle 4 is pulled to move away from the rack assembly 1, the handle 4 drives the pull rope 3 to move away from the resistance device 2, the winding wheels 21 rotate forward, the winding wheels 21 release the pull rope 3, and the motor 20 provides resistance; when the handle 4 is released or returned to the initial position, the output shaft of the motor 20 drives the winding wheels 21 to rotate reversely, and the winding wheels 21 wind the pull rope 3.

[0071] It can be understood that the motor mounting frame 22 can be omitted according to actual needs. For example, the motor 20 is directly connected to the rack body 10.

[0072] It can be understood that the resistance device 2 is not limited to two, and can be one according to actual needs, such as Figure 5 and Figure 6 As shown in some other embodiments, the resistance device 2 has one, and the resistance device 2 is arranged between the two sliding guides 6. The resistance device 2 includes a motor 20, two winding wheels 21, a motor mounting frame 22, and a resistance distribution device 23. The motor 20 is connected to the rack body 10 through the motor mounting frame 22, the resistance distribution device 23 is connected to the rotating shaft of the motor 20, and the two winding wheels 21 are connected to the resistance distribution device 23. The two pull ropes 3 are wound around the two winding wheels 21 respectively.

[0073] When the handle 4 is pulled to move away from the rack assembly 1, the handle 4 drives the pull rope 3 to move away from the resistance device 2, the two winding wheels 21 rotate forward, the two winding wheels 21 release the two pull ropes 3 respectively, and the motor 20 provides resistance to the two pull ropes 3 through the resistance distribution device 23; when the handle 4 is stopped, the output shaft of the motor 20 drives the two winding wheels 21 to rotate reversely through the resistance distribution device 23, and the two winding wheels 21 wind the two pull ropes 3 respectively.

[0074] The resistance distribution device 23 can be a differential. When the two handles 4 are pulled with different pulling forces, the two winding wheels 21 can rotate at different speeds, so that the two pull ropes 3 can move at different rates. Specifically, the differential includes two half axle gears 230, two planetary gears 231, and a gear support 232. For the sake of convenience in describing the positional relationship between the two winding wheels 21, the two winding wheels 21 are respectively referred to as a first winding wheel and a second winding wheel, and for the sake of convenience in describing the positional relationship between the two half axle gears 230, the two half axle gears 230 are respectively referred to as a first half axle gear and a second half axle gear. The first winding wheel, the first half axle gear, the gear support 232, the second half axle gear, and the second winding wheel are sequentially sleeved on the output shaft of the motor 20, wherein the first winding wheel is closest to the motor 20, and the second winding wheel is farthest from the motor 20. The first half axle gear is fixed to the first winding wheel, the second half axle gear is fixed to the second winding wheel, the gear support 232 is fixed to the output shaft of the motor 20, and the two planetary gears 231 are rotationally connected to the two sides of the gear support 232. The first half axle gear and the second half axle gear are respectively engaged with the two planetary gears 231.

[0075] When the two handles 4 are pulled with the same pulling force, the rotational speeds of the two winding wheels 21 are consistent, and the planetary gears 231 do not self-rotate; when the two handles 4 are pulled with different pulling forces, the rotational speeds of the two winding wheels 21 are different, and the two winding wheels 21 force the planetary gears 231 to self-rotate through the two half axle gears 230.

[0076] The sliding guide 6 is taken as an adjusting rod 61 for specific description. Referring to FIG. 4, Figures 7 to 9 The movable wheel frame 5 includes a support 50, a pulley 51, and a guide sleeve 52. The support 50 is slidingly connected to the adjusting rod 61, the pulley 51 is rotationally connected to the support 50, the axis of the pulley 51 is horizontally arranged, and the portion of the pull rope 3 between the resistance device 2 and the handle 4 is wound around the pulley 51. The pull rope 3 can drive the pulley 51 to rotate when moving, the friction on the pull rope 3 is rolling friction, the friction is small, the pull rope 3 is not easy to wear, and the pull rope 3 moves smoothly and is not easy to jam. The guide sleeve 52 is fixed to the support 50, the guide sleeve 52 is vertically arranged, and the guide sleeve 52 penetrates the guide groove 110. The portion of the pull rope 3 between the pulley 51 and the handle 4 penetrates the guide sleeve 52.

[0077] The guide sleeve 52 can protect the pull rope 3, so that the pull rope 3 is not easy to be frequently rubbed against the edge of the guide groove 110 when moving, thereby avoiding wear. Specifically, the inner hole of the guide sleeve 52 is substantially trumpet-shaped, the inner wall of the guide sleeve 52 is smooth, and the inner diameter of the inner hole of the guide sleeve 52 gradually increases from the middle to the two ends.

[0078] The handle 4 is provided with a limiting block 40, the limiting block 40 is like Figure 1The diameter of the limiting block 40 is greater than the hole diameter of the inner hole of the guide sleeve 52, so the limiting block 40 cannot pass through the guide sleeve 52. When the handle 4 is located close to the rack assembly 1, the resistance device 2 applies a downward force to the handle 4 through the pull rope 3, so that the limiting block 40 abuts against the guide sleeve 52, and at this time, the handle 4 is located at the starting position, and the free end of the pull rope 3 can be prevented from being withdrawn to the resistance device 2.

[0079] The movable wheel frame 5 is vertically movable relative to the rack assembly 1 between a first position and a second position.

[0080] In the first position, the rack assembly 1 locks the movable wheel frame 5, and the movable wheel frame 5 is fixed in the horizontal direction relative to the rack assembly 1 and cannot be moved in the horizontal direction relative to the rack assembly 1. In the second position, the rack assembly 1 releases the locking of the movable wheel frame 5, and the movable wheel frame 5 can be moved horizontally relative to the rack assembly 1, so as to adjust the rope exit position of the pull rope 3.

[0081] The cross section of the adjusting rod 61 can be circular. The lower part of the adjusting rod 61 is provided with at least two adjusting holes 610, which are spaced apart along the extension direction of the adjusting rod 61. The adjusting holes 610 are used to cooperate with the movable wheel frame 5.

[0082] The support 50 includes a pulley seat 500, an adjusting sleeve 501, and a limiting column 502. The pulley 51 is rotationally connected to the pulley seat 500, the pulley seat 500 is connected to the adjusting sleeve 501, the adjusting sleeve 501 is arranged at the lower part of the pulley seat 500, the adjusting sleeve 501 is sleeved on the adjusting rod 61 and can slide relative to the adjusting rod 61, so as to realize the movable connection of the support 50 and the adjusting rod 61, and further realize the movable connection of the movable wheel frame 5 and the adjusting rod 61.

[0083] The size of the inner hole of the adjusting sleeve 501 in the vertical direction is greater than the size of the adjusting rod 61 in the vertical direction, so that the movable wheel frame 5 can be moved vertically when it is not locked.

[0084] Specifically, the cross section of the adjusting sleeve 501 can be in the shape of a racetrack, and the length direction of the racetrack is vertically arranged.

[0085] The limiting column 502 is protruded on the inner wall of the lower part of the adjusting sleeve 501, and the limiting column 502 is used to extend into the adjusting hole 610.

[0086] It should be noted that the inner wall of the adjusting sleeve 501 is the hole wall of the inner hole of the adjusting sleeve 501.

[0087] When the handle 4 is pulled upwards, the pull rope 3 exerts an upward force on the movable wheel frame 5, and the handle 4 drives the movable wheel frame 5 to move away from the adjusting rod 61 until the movable wheel frame 5 is vertically moved to the first position, at which time the lower part of the inner wall of the adjusting sleeve 501 contacts the lower part of the adjusting rod 61, the limiting column 502 extends into the adjusting hole 610, and the movable wheel frame 5 is fixed in the horizontal direction with the rack assembly 1, so that the movable wheel frame 5 cannot move horizontally to achieve the locking of the movable wheel frame 5 by the rack assembly 1.

[0088] When the handle 4 is stopped from being pulled, for example, the handle 4 stays in the air, the movable wheel frame 5 still bears the upward force and remains in the first position, so that the rack assembly 1 keeps the movable wheel frame 5 locked, thereby ensuring that the movable wheel frame 5 remains in the first position during the training process, and the out-of-rope position of the pull rope 3 remains unchanged and does not affect the user's training.

[0089] When the handle 4 is released or put back to the starting position, the upward force on the handle 4 disappears, and the upward force on the movable wheel frame 5 also disappears. The movable wheel frame 5 moves towards the adjusting rod 61 under the action of its own gravity or is pressed to move towards the adjusting rod 61 until the movable wheel frame 5 is vertically moved to the second position, at which time the upper part of the inner wall of the adjusting sleeve 501 contacts the upper part of the adjusting rod 61, and the limiting column 502 exits the adjusting hole 610 to achieve the unlocking of the movable wheel frame 5 by the rack assembly 1.

[0090] When the movable wheel frame 5 is not locked, the handle 4 can be pulled in the horizontal direction, and the handle 4 drives the movable wheel frame 5 to move horizontally along the extension direction of the adjusting rod 61 to adjust the out-of-rope position of the pull rope 3, or the guide sleeve 52 is moved to drive the movable wheel frame 5 to move horizontally along the extension direction of the adjusting rod 61 to adjust the out-of-rope position of the pull rope 3. In this way, on the one hand, the out-of-rope position can be adaptively adjusted according to the arm length of different users, and on the other hand, the out-of-rope position can be adjusted according to the position required by different training actions. That is, the strength training equipment based on the above scheme can adapt to and meet the training of different training positions and training amplitudes of the trainer, greatly improving the training effect and use experience.

[0091] Please refer to Figure 11 and Figure 12 In other embodiments, the adjusting rod 61 is a lead screw. The lead screw is rotationally connected to the rack body 10, and the inner hole of the adjusting sleeve 501 is a screw hole. The adjusting sleeve 501 is sleeved on the lead screw and is screwed with the lead screw. The lead screw can rotate around its own axis to drive the movable wheel frame 5 to move horizontally along the axial direction of the lead screw to adjust the out-of-rope position of the pull rope 13.

[0092] The rack main body 10 comprises a rotating sleeve 100.

[0093] The rack 1 can further comprise a handle 15. The handle 15 is coaxially fixed to one end of the screw rod. When the handle 15 is rotated, the screw rod can be driven to rotate around its own axis, and manual operation is more convenient.

[0094] It can be understood that, according to actual needs, the handle 15 can be replaced by a rotary motor. The output shaft of the rotary motor is coaxially fixed to the screw rod, and is used to drive the screw rod to rotate around its own axis, so that automatic operation can be realized.

[0095] Embodiment 2

[0096] At present, for the traditional self-weight training instrument such as a dumbbell, the training track of a user is free when the user uses the dumbbell for exercise, that is, the movement direction of the weight is always consistent with the movement direction of the user's arm. However, for the existing digital resistance training equipment, the rope outlet position is fixed, and the free track training effect as same as using the dumbbell cannot be achieved.

[0097] Based on this, the embodiment 2 of the present application provides a strength training instrument, which can solve the problem that the fixed rope outlet position cannot simulate the free track training of the self-weight training instrument such as a dumbbell in the training process.

[0098] Please refer to Figure 13 and Figure 14 The strength training instrument provided in the embodiment is basically the same as the strength training instrument provided in the embodiment 1, and the main difference is as follows:

[0099] In the embodiment, the size of the inner hole of the adjusting sleeve 501 in the vertical direction is basically the same as the size of the adjusting rod 61 in the vertical direction, so that the movable wheel frame 5 can move along the extension direction of the adjusting rod 61, but cannot move vertically. The cross section of the inner hole of the adjusting sleeve 501 can be circular; the adjusting rod 61 is not provided with an adjusting hole; and the inner wall of the adjusting sleeve 501 is not provided with a limiting column.

[0100] Since the size of the inner hole of the adjusting sleeve 501 in the vertical direction is basically consistent with the size of the adjusting rod 61 in the vertical direction, and the limiting column and the adjusting hole are cancelled, the movable wheel frame 5 can slide along the horizontal direction with the pulling of the handle 4. That is, during the training process, the moving direction of the movable wheel frame 5 is consistent with the horizontal moving direction of the pull rope 3, and the movable wheel frame 5 slides along the adjusting rod 61 with the pulling of the handle 4. For example, when doing arm curl training, in the centripetal phase, the two handles 4 are close to each other, and the movable wheel frame 5 is subjected to the horizontal component force of the pull rope 3, so that the two movable wheel frames 5 are close to each other along the horizontal direction; in the centrifugal phase, the two handles 4 are away from each other, and the movable wheel frame 5 is subjected to the horizontal component force of the pull rope 3, so that the two movable wheel frames 5 are away from each other along the horizontal direction. Here, the centripetal phase is the pulling phase of the pull rope 3, and the centrifugal phase is the recovery phase of the pull rope 3. Thus, the rope position can be dynamically adjusted during the training process, thereby solving the problem that the fixed rope outlet position cannot simulate the free trajectory training of the dumbbell and other self-weight training instruments during the training process. The strength training instrument based on the above scheme can well adapt to the training posture and training action of the user, and improve the training effect and use experience.

[0101] Embodiment 3

[0102] Embodiment 3 of the present application provides a strength training instrument, which is basically the same as the strength training instrument provided in Embodiment 1, and the main difference is as follows:

[0103] In this embodiment, the limiting column is telescopic. When the limiting column is elongated, the limiting column protrudes from the inner wall of the adjusting sleeve, the limiting column is inserted into the adjusting hole to lock the movable wheel frame, and the movable wheel frame cannot move horizontally along the extension direction of the adjusting rod; when the limiting column is shortened, the limiting column does not protrude from the inner wall of the adjusting sleeve, the limiting column is withdrawn from the adjusting hole to unlock the movable wheel frame, and the movable wheel frame can move horizontally along the extension direction of the adjusting rod.

[0104] The extension and retraction of the limiting rod can be controlled by a retraction mechanism. The retraction mechanism can be an elastic pin. The user can operate the retraction mechanism as needed to control whether the limiting rod protrudes from the inner wall of the adjusting sleeve. For example, when the user needs to dynamically adjust the position of the rope (i.e., simulate the free trajectory of a self-weight training device), the user can manipulate the retraction mechanism so that the limiting rod does not protrude from the inner wall of the adjusting sleeve, and the handle can drive the movable wheel frame to move horizontally in synchronization when the handle is pulled. For another example, when the user needs to non-dynamically adjust the position of the rope, the user can manipulate the retraction mechanism so that the limiting rod protrudes from the inner wall of the adjusting sleeve, and the handle can cause the movable wheel frame to remain in the first position when the handle is pulled, so that the position of the rope is fixed. When the handle is released or returned to the initial position, the movable wheel frame moves to the second position under the action of its own gravity or by being pressed, the movable wheel frame can move horizontally along the extension direction of the adjusting rod, and the position of the rope can be changed. Based on the above scheme, the strength training device can dynamically and non-dynamically adjust the position of the rope according to the needs of the user, so as to meet the training requirements of the user for the training posture, training position, and training amplitude in different training conditions, and effectively improve the training effect and user experience.

[0105] Compared with the prior art, in the strength training device provided in Embodiments 1, 2, and 3 of the present application, the part of the rope between the fixed end and the free end of the rope is wound around the movable wheel frame, the movable wheel frame can move horizontally relative to the rack assembly, thereby adjusting the position of the part of the rope between the fixed end and the free end of the rope to adjust the position of the rope, and the problem that the initial position of the handle cannot be adjusted because the rope outlet is arranged at a fixed position can be solved, thereby achieving the technical effect that the training posture, training position, and training amplitude of the user can be adapted, and greatly improving the training effect and user experience.

[0106] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in detail for the sake of simplicity; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A strength training apparatus, characterized in that, The rack assembly, resistance device, pull rope, sliding guide, movable wheel frame and handle; the resistance device is connected with the rack assembly, the sliding guide is connected with the rack assembly, the movable wheel frame is movably connected with the sliding guide and can slide along the sliding guide; The resistance device comprises a motor and a winding wheel, the winding wheel is connected with the output shaft of the motor, the fixed end of the pull rope is wound around the winding wheel of the resistance device, the free end of the pull rope is connected with the handle, and the part of the rope between the fixed end and the free end is wound around the movable wheel frame; The rack assembly further comprises a pulley block, and the part of the pull rope between the resistance device and the movable wheel frame is wound around the pulley block; The movable wheel frame has two and can move horizontally relative to the rack assembly to adjust the position of the pull rope, and the moving directions of the two movable wheel frames are parallel; The rack assembly further comprises a pedal for the user to stand on, and the moving directions of the two movable wheel frames are parallel to the plane of the pedal.

2. The strength training machine of claim 1, wherein, The sliding guide comprises an adjusting rod, the movable wheel frame comprises an adjusting sleeve, the extending direction of the adjusting rod is parallel to the moving direction of the movable wheel frame, and the adjusting sleeve is sleeved on the adjusting rod.

3. The strength training machine of claim 1, wherein, The sliding guide comprises a sliding rail, the extending direction of the sliding rail is parallel to the moving direction of the movable wheel frame, and the movable wheel frame is arranged in the sliding rail and can move in the sliding rail.

4. The strength training machine of claim 2, wherein, The inner wall of the lower part of the adjusting sleeve is provided with a limiting column, the lower part of the adjusting rod is provided with adjusting holes, the adjusting holes are at least two, the adjusting holes are arranged at intervals along the extending direction of the adjusting rod, and the movable wheel frame can move vertically relative to the rack assembly.

5. The strength training machine of claim 4, wherein, The size of the inner hole of the adjusting sleeve in the vertical direction is greater than the size of the adjusting rod in the vertical direction.

6. The strength training machine of claim 4, wherein, The limiting column can be elongated or shortened, and when the limiting column is elongated, the limiting column protrudes from the inner wall of the lower part of the adjusting sleeve, and when the limiting column is shortened, the limiting column does not protrude from the inner wall of the lower part of the adjusting sleeve.

7. The strength training machine of claim 2, wherein, The size of the inner hole of the adjusting sleeve in the vertical direction is equal to the size of the adjusting rod in the vertical direction.

8. The strength training appliance of claim 2, wherein, The adjusting rod is a lead screw, the lead screw is rotationally connected with the rack assembly, the inner hole of the adjusting sleeve is a screw hole, and the adjusting sleeve is screwed with the lead screw.

9. The strength training machine of claim 8, wherein, The rack assembly further comprises a handle or a rotary motor, and the handle or the rotary motor is connected with the lead screw.

10. The strength training machine of claim 2, wherein, The movable wheel frame further comprises a pulley seat and a pulley, the pulley seat is connected with the adjusting sleeve, the pulley is rotationally connected with the pulley seat, and the part of the pull rope between the resistance device and the handle is wound around the pulley.

11. The strength training appliance of claim 1, wherein, The pedal is provided with a guide groove, the extending direction of the guide groove is parallel to the moving direction of the movable wheel frame, and the part of the pull rope between the movable wheel frame and the handle passes through the guide groove.

12. The strength training machine of claim 11, wherein, The movable wheel frame comprises a guide sleeve; the guide sleeve extends into the guide groove, and the part of the pull rope between the movable wheel frame and the handle passes through the guide sleeve, which is used to block the handle from moving towards the resistance device.

13. The strength training machine of claim 12, wherein, The inner wall of the guide sleeve is smooth, and the inner hole of the guide sleeve gradually increases in diameter from the middle to the two ends.

14. The strength training appliance of claim 1 wherein, The resistance device is arranged on the axial side or the radial side of the sliding guide.

15. The strength training appliance of any one of claims 1 to 14, wherein, The pull rope has two, and the handle has two; the fixed ends of the two pull ropes are arranged around the resistance device, and the free ends of the two pull ropes are connected to the two handles, respectively; or, the pull rope has only one, and the handle has only one.

16. The strength training appliance of claim 15, wherein, The movable wheel frame has two, and the part of the two pull ropes is arranged around the two movable wheel frames, respectively; the horizontal moving direction of the two movable wheel frames is parallel or at an angle; or, the movable wheel frame has only one, and the part of the pull rope is arranged around the movable wheel frame; the horizontal moving direction of the movable wheel frame is parallel or at an angle to at least one side of the rack assembly.

17. The strength training appliance of claim 15, wherein, The resistance device has two; the fixed ends of the two pull ropes are arranged around the two resistance devices, respectively; the two resistance devices each comprise a motor and a winding wheel; the winding wheel is connected to the output shaft of the motor; and the two pull ropes are arranged around the winding wheels of the two resistance devices, respectively.

18. The strength training appliance of claim 15, wherein, The resistance device comprises a motor, two winding wheels, and a resistance distribution device; the resistance distribution device is connected to the output shaft of the motor; the two winding wheels are connected to the resistance distribution device; and the fixed ends of the two pull ropes are arranged around the two winding wheels, respectively.

19. The strength training appliance of claim 18, wherein, The resistance distribution device comprises a differential.

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