Radius analysis method of running machine conforming to human body exercise and running machine
Technical Field
The invention relates to the technical field of sports equipment, in particular to a radius analysis method of a running machine conforming to human body sports and the running machine.
Background
Among exercise equipment, treadmills are a common exercise device. However, the existing unpowered running machine is a running machine with higher research and development degree, and the running machine saves electric energy and is convenient to install in places such as parks, stadiums, sports centers and the like, and is very convenient. However, in the existing unpowered running machine, the lower part of the running belt is downwards arc-shaped, so that gaps exist between the upper side of the running belt and an arc-shaped supporting roller path, and particularly impact and noise are easily generated when the running belt is separated from a track rolling roller path due to the action of centrifugal force during high-speed movement. In this case, unsafe influences caused by noise and impact may cause unsafe accidents in exercise, so that it is a urgent problem for those skilled in the art to solve in terms of noise reduction and impact reduction.
Disclosure of Invention
The invention solves the technical problem that in the prior art, the unpowered running machine is easy to generate unsafe accidents when the running machine exercises due to noise and impact generated by rolling of the track.
The invention has the following technical scheme:
a radius analysis method of a running machine conforming to human body exercise, comprising: step one: determining a motion track, setting the motion arc length as s and the speed as t, and then determining the motion rateAnd then (I)>And is also provided with<p′(t),p″(t)>=0, and further its curvature k (t) = |p '(t) ×p″ (t) |/|p' (t) | 3 = |p "(s) | the motion curvature has no abrupt change, when the curvature of one curve is constant over a certain continuous segment, the resulting curve satisfies the vector equation:
step two: determining radius r range of the running machine, and setting positions of hip joint, knee joint, ankle joint, toe joint and toe tip of human body as A 1 、A 2 、A 3 、A 4 Let 1 f The horizontal advancing distance, the vertical height difference is h, the toe tip always contacts the moving belt, and the parameter equation is:
l1=450,l2=400,l3=200,l4=60。
the leg-taking angle of the human body isTo->Radian, thus horizontally advancing distance l f About 480 to 490, the vertical height difference h is more than or equal to 40 and less than or equal to 100, and the weight is more than or equal to>So r ranges from about 1200 to 3000.
A treadmill conforming to a radius analysis method of a human body exercise treadmill, comprising: the running device and the lifting device comprise a left lifting belt pulley, a right lifting belt pulley and a lifting belt, wherein the lifting belt is wound on the left lifting belt pulley and the right lifting belt pulley, and the left lifting belt pulley and the right lifting belt pulley are in a tensioning state. The upper half of the lifting belt is approximately perpendicular to the horizontal plane. The lifting device is arranged on the rectangular underframe at the lower part of the running device.
Preferably: the running device comprises a running belt which is wound on a left belt wheel and a right belt wheel; the running device is characterized in that an arc-shaped roller way is further arranged inside the running device, the arc-shaped roller ways are arranged in a left row and a right row and are assembled on two sides of the frame, the arc-shaped roller way is attached to the running belt, the running belt is an arc-shaped roller way, and the radius of the arc-shaped roller way is 1200 mm-3000 mm.
Preferably: the upper part of the lifting belt is lifted at the lower part of the running belt, and the upper part of the running belt is in a loose state. The arc-shaped roller path and the running belt are in the same radian and are mutually attached.
Preferably: wheels and a fixing seat are also arranged at the lower part of the frame. The wheels are used for moving the running machine, and the fixing base is used for supporting and stabilizing the running machine during running.
Preferably: the left side and the right side of the frame are rigidly connected with the armrest frame.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention determines a radius analysis method of the running machine conforming to the human body exercise and the running machine conforming to the human body exercise, and the running machine has more reasonable exercise track and is more suitable for the human body exercise. The sports equipment reduces injury and is healthier and comfortable. The lifting device is additionally arranged on the structure of the running machine, and the novel technology is characterized in that the lifting belt is additionally arranged below the running belt of the running machine, so that the vertical underslung of the lower side is reduced, the upper side of the running belt is attached to the arc-shaped supporting rollaway nest, the gap is reduced, the impact of the running belt on the supporting arc-shaped passage in the exercise is reduced, and the impact noise is reduced.
Drawings
FIG. 1 is a schematic view of the internal structure of a treadmill according to the present invention;
FIG. 2 is a plan view of the treadmill according to the present invention;
description of the reference numerals
1 is a running device, 11 is a left belt wheel, 12 is a right belt wheel, 13 is a running track, 14 is an arc-shaped roller path, 2 is a lifting device, 21 is a left lifting belt wheel, 22 is a right lifting belt wheel, 23 is a lifting belt, 24 is wheels, 25 is a fixed seat, and 3 is a frame.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which illustrate but do not limit the invention.
4. A radius analysis method of a running machine conforming to human body exercise, comprising: step one: determining a motion track, setting the motion arc length as s and the speed as t, and then determining the motion rateAnd then (I)>And is also provided with<p′(t),p″(t)>=0, and further its curvature k (t) = |p '(t) ×p″ (t) |/|p' (t) | 3 = |p "(s) | the motion curvature has no abrupt change, when the curvature of one curve is constant over a certain continuous segment, the resulting curve satisfies the vector equation:
step two: determining radius r range of the running machine, and setting positions of hip joint, knee joint, ankle joint, toe joint and toe tip of human body as A 1 、A 2 、A 3 、A 4 Let 1 f The horizontal advancing distance, the vertical height difference is h, the toe tip always contacts the moving belt, and the parameter equation is:
l1=450,l2=400,l3=200,l4=60。
the leg-taking angle of the human body isTo->Radian, thus horizontally advancing distance l f About 480 to 490, the vertical height difference h is more than or equal to 40 and less than or equal to 100, and the weight is more than or equal to>So r ranges from about 1200 to 3000.
According to the structural diagram of the running machine shown in fig. 1, the running machine is divided into a running device 1 and a lifting device 2, the lifting device 2 comprises a left lifting belt pulley 21, a right lifting belt pulley 22 and a lifting belt 23, the lifting belt 23 is wound around the left lifting belt pulley 21 and the right lifting belt pulley 22, and the left lifting belt pulley 21 and the right lifting belt pulley 22 are in a tensioning state. The upper half of the lifting belt 23 is approximately perpendicular to the horizontal plane. The lifting device 2 is mounted on the underframe of the lower part of the running device 1. During exercise, the lifting belt 23 and the running belt 13 rotate synchronously, and the lifting belt 23 lifts the running belt 13 in a state of being approximately horizontal to the horizontal plane due to the tension and the pulling of the upper parts of the left lifting belt pulley 21 and the right lifting belt pulley 22. The whole running machine belongs to an unpowered running machine, does not need to consume energy, and belongs to an environment-friendly product.
The running belt 13 is wound around the left pulley 11 and the right pulley 12. The running device 1 is internally provided with arc-shaped roller paths 14, the arc-shaped roller paths 14 are arranged in left and right rows and assembled on two sides of the frame 3, and the arc-shaped roller paths 14 are attached to the running belt 13. The running belt 13 is an arc-shaped runway with a radius of 1200 mm-3000 mm. When running, the running belt 13 is very loose because of the lifting state, and the upper part of the running belt 13 is arc-shaped and is naturally attached to the arc-shaped roller path 14. Because of the synchronous movement, the running belt 13 and the lifting belt 23 always run on one track, and the situation that the running belt 13 is deviated is reduced. When the running belt 13 moves while fitting the arc-shaped roller path 14, the running belt 13 always rolls over the arc-shaped roller path 14, and no large noise is generated and the arc-shaped roller path 14 is impacted due to gaps.
The upper portion of the lifting belt 23 is lifted from the lower portion of the running belt 13, and the upper portion of the running belt 13 is in a relaxed state. The arc-shaped roller path 14 and the running belt 13 are in the same radian and are mutually attached.
The lower part of the frame 3 is also provided with wheels 24 and a fixed seat 25. The wheels are used to move the treadmill and the mounting 25 is used to support and stabilize the treadmill while running. The bottom of the fixing seat 25 is rectangular, so that the whole running machine can be in a stable state during rapid movement.
The left and right sides of the frame 3 are rigidly connected with the armrest frame 15. The armrest frame 15 is used for preventing falling during a slow movement or for the elderly.
The embodiments given above are preferred examples for realizing the present invention, and the present invention is not limited to the above-described embodiments. Any immaterial additions and substitutions made by those skilled in the art according to the technical features of the technical scheme of the invention are all within the protection scope of the invention.