Shock absorbing self-regulating method for treadmills with shock absorbing airbags

Abstract

The application discloses a damping self-adjusting method of a treadmill, in particular a damping self-adjusting method of a treadmill with damping air bags, which comprises the following steps: establishing a corresponding relationship data set P1 of a foot bottom pressure reference value and an air bag air pressure value; establishing a corresponding relationship data set P2 of different air bag air pressure maximum values and body weights; a control unit reverses the body weight W of a person currently standing on the treadmill according to the data set P2 A , and inflates or deflates the air bags by controlling an air pump until the corresponding air bag air pressure value P A of the foot bottom pressure reference value F A in the data set P1 is reached; the control unit determines the corresponding foot bottom pressure reference value F As in the data set P1 through a running speed s A , compares the corresponding air bag air pressure value P As with a real-time air bag air pressure maximum value, and ensures that the two values are close to or equal to each other. The application solves the technical problem of realizing damping self-adjusting of a treadmill with damping air bags, and can realize accurate adjustment.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of damping self-regulation method of treadmill, in particular to a kind of damping self-regulation method of treadmill with damping air bag. BACKGROUND

[0002] Treadmill is the health equipment that family and gymnasium is always ready, user can carry out exercise by running on running deck, traditional treadmill uses damping pad to damp, rely on the elastic deformation ability of rubber material itself to provide buffering effect, but different weight of crowd is inconsistent with the buffering performance demand of treadmill, damping pad cannot adjust buffering effect to adapt to different weight of crowd, therefore, adjustable buffering performance appears on the market.

[0003] The Chinese patent with application number CN201721795961.1 discloses a novel treadmill air bag damping structure, which comprises a treadmill chassis and a running board, an air bag support and an air pump support are arranged on the inner side of the treadmill chassis, and an air bag and an air pump are respectively arranged on the air bag support and the air pump support, a one-way air inlet valve and a one-way air outlet valve are arranged on the air pump, the one-way air outlet valve is connected with a softness and hardness adjusting switch through a first air pipe, the softness and hardness adjusting switch is connected with the air bag through a second air pipe, and a deflation port is arranged on the softness and hardness adjusting switch, the softness and hardness adjusting switch has three gears of soft, medium and hard.

[0004] The treadmill air bag damping structure controls the air bag inflation amount by adjusting the softness and hardness adjusting switch, so as to control the softness and hardness of the running board to adapt to different weight of crowd, but the user needs to weigh first before using the treadmill, and then adjusts the softness and hardness adjusting switch to the appropriate gear according to the weight, which needs to be equipped with a weight scale, and when there is no weight scale, the appropriate gear cannot be accurately judged, which is inconvenient to operate, and the setting of gears divides the weight into several ranges, which can only be roughly adjusted, and cannot play a good protection role.

[0005] Therefore, the applicant proposes the present application. SUMMARY

[0006] The present application aims to solve the above problems of the prior art and provides a damping self-regulation method of treadmill with damping air bag. According to the different weight of the person standing on the treadmill and the size of the foot pressure when moving, the method detects the air bag pressure value to deduce the reaction force (i.e. foot pressure) applied by the running board to the foot, and automatically adjusts the air bag pressure value according to the reaction force.

[0007] In order to achieve the above purpose, the present application designs a damping self-regulation method of treadmill with damping air bag, which comprises the following steps:

[0008] a. A plantar pressure measurement system was used to collect plantar pressure values ​​of people of different weights when they exercised on treadmills with different airbag pressure values ​​at different running speeds.

[0009] The steps involved in determining the reference values ​​(standard values) of plantar pressure for people of different weights exercising on a treadmill at different running speeds through a human knee injury simulation experiment, and establishing a dataset P1 showing the correspondence between the plantar pressure reference values ​​and the airbag pressure values.

[0010] b. Establish the airbag pressure value P 初始 The steps of dataset P2, which shows the relationship between the maximum airbag pressure and body weight of people of different weights standing on a constant treadmill;

[0011] c. The pressure P of the airbag caused by a person standing on the treadmill. 初始 When a change occurs, the control unit infers the current person's weight W based on the dataset P2. A Further confirmation of the weight W in dataset P1 A Reference value of plantar pressure F when a person is standing A The airbag is inflated or deflated by controlling the air pump until the plantar pressure reference value F is reached. A The corresponding airbag pressure value P A Steps;

[0012] d. Weight W A During exercise on the treadmill, the control unit analyzes the air pressure fluctuation frequency continuously collected by the air pressure sensor in real time to determine the person's running speed (s). A This allows us to determine the corresponding plantar pressure reference value F in dataset P1. As plantar pressure reference value F As The corresponding airbag pressure value P As The airbag pressure is continuously compared with the real-time maximum airbag pressure collected by the air pressure sensor. Furthermore, the air pump is repeatedly inflated or deflated to ensure that the real-time maximum airbag pressure always remains close to or equal to the airbag pressure value P. As The steps.

[0013] Compared with existing technologies, the shock absorption self-adjustment method for a treadmill with shock-absorbing airbags obtained by the present invention has the following technical advantages and features:

[0014] 1. When people of different weights on a treadmill transition from a static (standing) to a dynamic (exercise) state, the treadmill can better protect their knee joints from injury by self-adjusting different initial airbag pressure values.

[0015] 2. When people of different weights exercise on a treadmill, the air pressure sensor detects the frequency of changes in the air pressure value of the airbag to infer the person's running speed. The collected data is highly accurate. At the same time, the treadmill further adjusts the real-time maximum air pressure value of the airbag according to the running speed, and then adjusts the plantar pressure value until it reaches the plantar pressure reference value (standard value) to better protect the knee joint from injury.

[0016] 3. This invention fully realizes the shock absorption self-adjustment function of treadmills with shock-absorbing airbags, and can make precise adjustments without the need for an additional weighing scale, making the overall operation convenient. Implementation

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art are within the scope of protection of the present invention.

[0018] As one embodiment of the present invention, this embodiment provides a shock absorption self-adjustment method for a treadmill with shock-absorbing airbags, which includes the following steps:

[0019] a. A plantar pressure measurement system was used to collect plantar pressure values ​​of people of different weights when they exercised on treadmills with different airbag pressure values ​​at different running speeds.

[0020] The steps are as follows: Determine the reference values ​​of plantar pressure when people of different weights exercise on a treadmill at different running speeds through human knee injury simulation experiments, and establish a dataset P1 that establishes the correspondence between the plantar pressure reference values ​​and the airbag pressure values.

[0021] b. Establish the airbag pressure value P 初始 The steps of dataset P2, which shows the relationship between the maximum airbag pressure and body weight of people of different weights standing on a constant treadmill;

[0022] c. The pressure P of the airbag caused by a person standing on the treadmill. 初始 When a change occurs, the control unit infers the current person's weight W based on the dataset P2. A Further confirmation of the weight W in dataset P1 A Reference value of plantar pressure F when a person is standing A The airbag is inflated or deflated by controlling the air pump until the plantar pressure reference value F is reached. A The corresponding airbag pressure value P A Steps;

[0023] d. Weight W AThe person on the treadmill exercises, and the control unit determines the running speed s of the person in real time according to the air pressure floating frequency collected by the air pressure sensor A , and then determines the corresponding plantar pressure reference value F in the data set P1 As , compares the plantar pressure reference value F As with the corresponding air bag air pressure value P As , and the maximum air bag air pressure value collected by the air pressure sensor in real time, further inflates or deflates repeatedly through the control of the air pump, and ensures that the maximum air bag air pressure value in real time is always close to or equal to the air bag air pressure value P As . For example, if the running speed of the person on the treadmill increases, the maximum air bag air pressure value detected by the air pressure sensor and the air pressure floating frequency increase, at this time, the control unit reversely obtains that the reaction force of the plantar and the running board increases, and the control unit will automatically inflate again through the control of the air pump according to the database P1, so that the maximum air bag air pressure value in real time increases to the air bag air pressure value corresponding to the plantar pressure reference value set in the database P1. Conversely, if the running speed of the person on the treadmill decreases, the control unit will automatically deflate through the control of the air pump according to the database P1, at this time, the maximum air bag air pressure value will also decrease to the air bag air pressure value corresponding to the plantar pressure reference value set in the database P1, and the on-line adjustment is repeated continuously.

[0024] The plantar pressure measuring system mentioned in the above can select the Pedar shoe pad type plantar pressure measuring system developed by the German Novel company.

[0025] The present application is not limited to the above-mentioned best embodiment, anyone can derive other various forms of products under the inspiration of the present application, but regardless of any changes in shape or structure, any technical solution with the same or similar to the present application falls within the scope of the present application.

Claims

1. A method of self-adjusting damping of a treadmill having a damping air bag, characterized by The steps include the following: a. Collecting the plantar pressure values of people with different weights when they exercise on a treadmill with different air bag pressure values and different running speeds by using a plantar pressure measurement system, The steps of determining the plantar pressure reference values of people with different weights when they exercise on a treadmill with different running speeds through a human knee injury simulation experiment, and establishing a corresponding relationship data set P1 of the plantar pressure reference values and the air bag pressure values; b. Establishing the airbag air pressure value P 初始 The step of establishing the corresponding relationship data set P2 of the maximum value of different airbag air pressures and body weight under the condition that people with different body weights stand on a constant treadmill. c. The person standing on the treadmill causes the airbag pressure value P 初始 to change, and the control unit back-calculates the current weight W of the person from the data set P2 A , further confirms the foot pressure reference value F A corresponding to the weight W of the person standing in the data set P1 A , and controls the air pump to inflate or deflate the airbag until the airbag pressure value P A corresponding to the foot pressure reference value F A is reached. d, weight W A The control unit determines the running speed s of the person in real time according to the air pressure floating frequency collected by the air pressure sensor during the exercise of the person on the treadmill A , and further determines the corresponding plantar pressure reference value F in the data set P1 As The plantar pressure reference value F As The corresponding air bag air pressure value P As The real-time air bag air pressure maximum value collected by the air pressure sensor is compared constantly, and further inflated or deflated repeatedly by controlling the air pump to ensure that the real-time air bag air pressure maximum value is always close to or equal to the air bag air pressure value P As .