CN109224426B

CN109224426B - Starting measuring device

Info

Publication number: CN109224426B
Application number: CN201811294099.5A
Authority: CN
Inventors: 路国华
Original assignee: Yangtze University
Current assignee: Yangtze University
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2020-11-17
Anticipated expiration: 2038-11-01
Also published as: CN109224426A

Abstract

The invention belongs to the technical field of auxiliary equipment for exercise training, and discloses a starting measuring device, which comprises: the running starter comprises a base plate and pedals, wherein the pedals comprise a left pedal and a right pedal which are connected with the base plate in a sliding way in tandem, and the surface of the base plate is longitudinally provided with first scale marks for measuring the longitudinal distance between the left pedal and the right pedal; and the detection system comprises a control chip, and a three-dimensional force transducer, a pressure sensor and an inclination angle sensor which are in signal connection with the control chip and are all arranged on the pedal. The beneficial effects of the invention include: the foot distance can be measured, and the magnitude and direction of the acting force applied to the pedals by the soles during starting can be measured and recorded; the pedals are adjustable to facilitate adjustment based on the aforementioned measurements to achieve an optimal starting position.

Description

Starting measuring device

Technical Field

The invention relates to the technical field of exercise training auxiliary equipment, in particular to a starting measuring device.

Background

Sprinting is the oldest competition item in the world sports history, is the basis of track and field sports and other sports, and because the competition time is short, thousandth of a second is particularly important for athletes. Therefore, effective starting is one of the key factors for achieving the success of the race. Squat starting is an international advanced mainstream short-distance starting mode, is a starting technology of a complete sprint technology, and influences the exertion of subsequent technologies and the psychological state during competition. Optimal starting positions take into account a combination of forward horizontal pushing force, time taken to reach maximum force and equilibrium force.

The starting parameters of the athlete can be measured during training, so that the athlete can be helped to correct the posture and optimize the starting technology. The starting parameters mainly comprise an included angle between a sole and a horizontal plane, a horizontal vertical distance between two feet, and a front-back vertical distance between the two feet, which all influence the magnitude of a horizontal pushing force obtained by an athlete during starting.

Disclosure of Invention

The invention aims to provide a starting measuring device which can be used for comprehensively and effectively measuring starting parameters of athletes.

In order to achieve the above technical object, a starting measurement device according to an aspect of the present invention includes:

the running starter comprises a base plate and pedals, wherein the pedals comprise a left pedal and a right pedal which are connected with the base plate in a sliding way in tandem, and the surface of the base plate is longitudinally provided with first scale marks for measuring the longitudinal distance between the left pedal and the right pedal; and

the detection system comprises a control chip, and a three-dimensional force transducer, a pressure sensor and an inclination angle sensor which are connected with the control chip through signals and are arranged on the pedal.

Compared with the prior art, the invention has the beneficial effects that: the foot distance can be measured, and the magnitude and direction of the acting force applied to the pedals by the soles during starting can be measured and recorded; the pedals are adjustable to facilitate adjustment based on the aforementioned measurements to achieve an optimal starting position.

Drawings

FIG. 1 is a schematic view of the start of run measuring apparatus of the present invention;

FIG. 2 is a cross-sectional view of the foot peg of the present invention;

FIG. 3 is a schematic block diagram of the detection system of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, the present invention provides a starting run measuring apparatus including: a starting block 100 and a detection system 200.

The starting block 100 comprises a base plate 110 and a foot support 120, wherein the foot support 120 comprises a left foot support 120a and a right foot support 120b, which are slidably connected to the base plate 110 in tandem, and a first scale mark 115 for measuring a longitudinal distance between the left foot support 120a and the right foot support 120b is longitudinally provided on a surface of the base plate 110.

The detection system comprises a control chip 210, and a three-dimensional load cell 220, a pressure sensor 230 and an inclination sensor 240 which are in signal connection with the control chip 210 and are all arranged on the foot pedal 120.

When the device is used, the left foot support 120a and the right foot support 120b can be slid to adjust the longitudinal distance of the device and adjust the inclination angle of the foot supports 120, thus the included angle between the soles of the athlete and the horizontal plane can be adjusted when the athlete starts running. During each measurement, the three-dimensional force sensor 220, the pressure sensor 230 and the tilt sensor 240 on the foot pedal 120 respectively collect starting parameters such as thrust, angle and the like, and then transmit the starting parameters to the control chip 210, and the control chip 210 transmits information to external equipment after processing.

In order to make the lateral distance between the left foot support 120a and the right foot support 120b adjustable, the following preferred schemes are proposed: the base plate 110 includes left and

right bases

111 and 112 arranged in parallel, and a linear motion mechanism 113 that drives the left and

right bases

111 and 112 to approach or separate from each other, so that the base plate is laterally adjustable, i.e., the distance between the left foot support 120a and the right foot support 120b is adapted to the lateral distance of both feet of the athlete in the optimum starting posture. The bottom of the base plate 110 can be provided with anti-slip teeth, the opening direction of the anti-slip teeth is opposite to the inclination direction of the pedals 120, so that the anti-slip teeth can increase the friction between the bottom of the base plate 110 and the ground when an athlete starts running, and the stability of the device is improved.

More specifically, the linear motion mechanism 113 includes an adjusting sleeve 113a disposed on the left base 111 and the right base 112, a bolt post 113b passing through the adjusting sleeve 113a, a nut 113c engaged with the bolt post 113b, and a spring 113d disposed between the left base 111 and the right base 112 and sleeved on the bolt post 113 b. When the adjustable pedal is used, under the matching of the spring 113d, the distance between the left base 111 and the right base 112 can be adjusted by adjusting the tightness of the nut 113c, and further, the transverse distance between the left pedal 120a and the right pedal 120b which are respectively connected to the left base 111 and the right base 112 is adjusted. It is understood that the linear motion mechanism 113 may also be a screw mechanism or other linear motion mechanisms that can drive the left base 111 and the right base 112 to move toward or away from each other and achieve position locking, and multiple sets, such as one set at the head and the tail, may be arranged to achieve a stabilizing effect.

To facilitate a perception of the lateral distance between left foot support 120a and right foot support 120b, the surface of bolt post 113b is provided with second scale markings 116 for measuring the lateral distance between left base 111 and right base 112 to facilitate recording each measurement, i.e., lateral separation of the feet.

As a specific scheme of the connection manner of the pedal 120 and the base plate 110, a sliding groove 114 for sliding the pedal 120 is longitudinally disposed on the surface of the base plate 110, the pedal 120 includes a pedal body 121, and a connecting member 122 connected to the pedal body 121 and slidably connected to the sliding groove 114, and the connecting member 122 includes a slider 122a extending into the sliding groove 114, and a locking member 122b for locking the slider 122 a. When the position of the pedal 120 needs to be adjusted, the locking of the slider 122a by the locking piece 122b is released, the pedal 120 is moved, the pedal 120 moves along the slide groove 114 along with the slider 122a, and the slider 122a is locked by the locking piece 122b after the pedal 120 is adjusted to the target position, so that the adjustment operation is completed.

More specifically, the sliding groove 114 includes a connecting piece sliding groove 114a disposed on the upper surface of the base plate 110 and a pedal sliding groove 114b disposed on the side surface of the base plate 110, and the connecting piece sliding groove 114a and the pedal sliding groove 114b are communicated with each other; the slider 122a includes a sliding plate connected to the pedal body 121 and extending into the pedal slide groove 114b, and an adjustment post inserted into the connector slide groove 114a and connected to the sliding plate. Such a sliding connection structure provides more stability and firmness between the foot support 120 and the base plate 110. Locking piece 122b include with adjust post threaded connection's lock nut, and locate lock nut with the anti-skidding rubber pad of base plate 110 contact surface, locking and release only need rotate lock nut can, the thickness of anti-skidding rubber pad preferably is 0.5 ~ 1 cm.

Specifically, the pedal body 121 includes a pedal seat 1211, a pedal plate 1212, and an angle adjustment mechanism 1213, wherein the angle adjustment mechanism 1213 connects the pedal seat 1211 and the pedal plate 1212, and is used for adjusting the inclination angle of the pedal plate 1212. The angle between the pedal 1212 and the pedal seat 1211 can be adjusted by the angle adjustment mechanism 1213, and the pedal seat 1211 is usually disposed parallel to the ground, i.e. the angle between the pedal 1212 and the ground. The three-dimensional force sensor 220, the pressure sensor 230 and the tilt sensor 240 can be disposed on the pedal plate 1212, so as to effectively collect real-time parameters such as the magnitude and angle of the thrust when the athlete starts running.

In a further specific embodiment, the angle adjustment mechanism 1213 includes a hinge 1213a connecting one end of the pedal plate 1212 to the pedal seat 1211, and an extension rod 1213b having two ends respectively hinged to the other end of the pedal plate 1212 and the pedal seat 1211, and the size of the included angle can be adjusted by adjusting the length of the extension rod 1213 b.

In order to facilitate the arrangement of the detection system, the pedal seat 1211 is a hollow structure, the control chip 210 is disposed in the pedal seat 1211, and a data transmission interface 250 connected to the control chip 210 is disposed on an outer wall of the pedal seat 1211.

As an extension, the detection system further includes a processor 260 connected to the control chip 210, and a display device 270 and a command input device 280 connected to the processor 260. The display device 270 and the command input device 280 may be replaced with a human-machine interface device such as a touch screen.

The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A starting block measuring device characterized by comprising:

the detection system comprises a control chip, and a three-dimensional force transducer, a pressure sensor and an inclination angle sensor which are in signal connection with the control chip and are all arranged on the pedal;

the base plate comprises a left base and a right base which are arranged in parallel, and a linear motion mechanism which drives the left base and the right base to approach or depart from each other; the left foot support and the right foot support are respectively connected with the left base and the right base in a sliding manner;

the linear motion mechanism is including locating adjusting sleeve on left side base and the right base passes adjusting sleeve's bolt post, with bolt post complex nut, and locate between left side base and the right base and the cover is located spring on the bolt post, the surface of bolt post is equipped with and is used for measuring left side base and right base transverse distance's second scale mark.

2. The starting measurement device of claim 1, wherein: the surface of base plate is equipped with along vertically to be used for the gliding spout of pedal, the pedal include the pedal body, and with this body coupling of pedal and with spout sliding connection's connecting piece, the connecting piece is including stretching into the saddle of spout, and be used for the locking piece of saddle.

3. The starting measurement device of claim 2, wherein: the sliding groove comprises a connecting piece sliding groove arranged on the upper surface of the base plate and a pedal sliding groove arranged on the side surface of the base plate, and the connecting piece sliding groove and the pedal sliding groove are communicated with each other; the sliding piece comprises a sliding plate connected with the pedal body and extending into the pedal sliding groove, and an adjusting column inserted into the connecting piece sliding groove and connected with the sliding plate; the locking piece comprises a locking nut in threaded connection with the adjusting column and an anti-skid rubber pad arranged on the contact surface of the locking nut and the base plate.

4. The starting measurement device according to claim 2 or 3, characterized in that: the pedal body comprises a pedal seat, a pedal plate and an angle adjusting mechanism, wherein the angle adjusting mechanism is connected with the pedal seat and the pedal plate and is used for adjusting the inclination angle of the pedal plate.

5. The starting measurement device of claim 4, wherein: the angle adjusting mechanism comprises a hinge connecting one end of the pedal plate with the pedal seat and a telescopic rod with two ends respectively hinged with the other end of the pedal plate and the pedal seat.

6. The starting measurement device of claim 4, wherein: the pedal seat is of a hollow structure, the control chip is arranged in the pedal seat, and a data transmission interface connected with the control chip is arranged on the outer wall of the pedal seat.

7. The starting measurement device of claim 1, wherein: the detection system also comprises a processor connected with the control chip, and a display device and a command input device which are connected with the processor.