WO2022094979A1

WO2022094979A1 - Treadmill

Info

Publication number: WO2022094979A1
Application number: PCT/CN2020/127314
Authority: WO
Inventors: 陈霞
Original assignee: 绍兴市柯桥区锦策智能科技有限公司
Priority date: 2020-11-04
Filing date: 2020-11-07
Publication date: 2022-05-12
Also published as: CN112451911A

Abstract

The present invention relates to sports equipment. Disclosed is a treadmill. A micro weighing sensor is provided at the bottom of each accommodating groove in an off-contact manner, and a hard bearing plate is provided above the micro weighing sensor; and a circuit board is provided below the micro weighing sensor, the circuit board is provided with a control module coupled to the micro weighing sensor, a frequency converter is coupled to the control module, and a power device for controlling the operation of the treadmill is coupled to the frequency converter. The treadmill of the present invention can effectively identify, by detecting a pressure change on the hard bearing plate by means of the micro weighing sensor, whether a water container is placed in the accommodating groove, thereby determining whether a user needs to drink water in the container; and when the power device drives the operation of the treadmill at a relatively high speed, if the user takes the water container out of the accommodating groove, the control module can reduce the operation speed of the power device by means of the frequency converter, thereby decelerating the treadmill, so as to ensure the safety of the user in the process of drinking water.

Description

treadmill

technical field

The present invention relates to sports equipment, in particular to treadmills.

Background technique

Treadmill is a standing fitness equipment in homes and gyms, and it is the simplest type of home fitness equipment today, and it is the best choice for home fitness equipment.

When people exercise on the treadmill, they usually need to add water. In the process of drinking water, they often need to reduce the running speed of the treadmill first; after drinking water, increase the running speed of the treadmill to the normal level. The whole operation The process is cumbersome, and dangerous accidents such as slipping are prone to occur if the operation is careless, so there is still a certain room for improvement in the existing treadmill.

technical problem

Aiming at the shortcomings of the prior art, the present invention provides a treadmill, which can automatically slow down when the user is drinking water to ensure safety.

technical solutions

In order to solve the above technical problems, the present invention is solved by the following technical solutions.

A treadmill comprises a chassis and a column arranged on the front side of the chassis, an operation panel is arranged on the top of the column, and a receiving groove for placing a water container is opened on one side of the operating panel; the bottom of the receiving groove is overhead with a micro scale Load cell, a hard supporting plate is arranged above the micro weighing sensor; a gap is maintained between the outer edge of the hard supporting plate and the inner wall of the accommodating slot; a circuit board is arranged below the micro weighing sensor, and the circuit board There is a control module coupled to the miniature weighing sensor, the control module is coupled with a frequency converter, and the frequency converter is coupled with a power device for controlling the running of the treadmill; the power device is provided with a speed measurement module to monitor the power device For the running speed, the speed measuring module is coupled to the control module to send the measured running speed parameters to the control module; a reference speed value is preset in the control module.

The micro load cell is used to monitor the pressure value applied to the hard support plate and send the monitored pressure value signal to the control module, the control module is used to receive the pressure value signal and output the corresponding control signal, and the frequency converter is used to receive Control signals and output voltage signals of corresponding frequencies to the power device, and the power device responds to the voltage signals to control the running of the treadmill.

When the micro load cell detects that there is pressure on the hard support plate, the control module controls the inverter to maintain the current output voltage signal parameters, so as to control the power unit to maintain the current running state.

When the micro load cell does not detect the existence of pressure on the hard support plate, the control module retrieves the running speed parameter of the power unit measured by the speed measuring module and compares it with the built-in reference speed value, if the actual running speed of the power unit If the value is greater than the reference speed value, the control module controls the inverter to reduce the frequency and output the voltage signal to the power device to control the power device to decelerate to run until the actual running speed value measured by the speed measurement module is equal to or less than the reference speed value, the control module controls the inverter to stop. The frequency is reduced to maintain the current operating speed of the power unit.

On the contrary, if the actual running speed value of the power plant is less than or equal to the reference speed value, the control module controls the inverter to maintain the current output voltage signal parameters to maintain the current running speed of the power plant.

Preferably, the miniature load cell is suspended at the bottom of the accommodating slot through a support rod.

Preferably, an elastic film is attached to the upper surface of the rigid support board, and the outer edge of the elastic film is clamped and embedded in the inner side wall of the accommodating groove.

Preferably, the control module is further coupled with a prompting module, and a pressure reference change value is preset in the control module; the control module makes the difference between the pressure value measured by the micro load cell and the previous measured pressure value to obtain the pressure difference value and compare this differential pressure value to the pressure reference change value.

If the pressure difference value is greater than the pressure reference change value, the control module controls the prompting module to give an indication; on the contrary, if the pressure difference value is less than or equal to the pressure reference change value, the prompting module does not give an indication.

Preferably, the prompting module is an audible and/or luminous alarm.

Preferably, the control module is further coupled to a speed control module for outputting a speed control signal to the control module in response to an external trigger, and the control module controls the frequency converter to change the frequency of the output voltage signal in response to the speed control signal to control the speed change of the power plant.

Preferably, the control module is further coupled to a start module for outputting a start signal to the control module in response to an external trigger, and the control module controls the inverter to output a voltage signal of a specific frequency to the power plant in response to the start signal to make the power plant run.

Preferably, the control module is further coupled to a stop module for outputting a stop signal to the control module in response to an external trigger, and the control module controls the inverter to stop outputting a voltage signal in response to the stop signal to stop the power plant from running.

beneficial effect

Due to the adoption of the above technical solutions, the present invention has significant technical effects: the pressure change on the hard support plate is detected by the micro weighing sensor, which can effectively identify whether the water container is placed in the accommodating tank, so as to determine whether the user is It is necessary to drink the water in the container; when the power unit drives the treadmill at a lower speed (that is, the actual running speed value of the power unit is less than or equal to the reference speed value), no matter whether the water container is taken out from the accommodating tank or not, the power unit will This running state can be maintained to ensure safety; on the contrary, when the power unit drives the treadmill to run at a higher speed (that is, the actual running speed value of the power unit is greater than the reference speed value), if the user removes the water container from the accommodating tank Take it out, the control module can reduce the running speed of the power unit through the frequency converter, so that the treadmill runs at a reduced speed, so as to ensure the safety of the user during the drinking process, which is more humane.

Description of drawings

FIG. 1 is a schematic structural diagram of this embodiment.

FIG. 2 is a partial cross-sectional view of this embodiment.

FIG. 3 is an enlarged schematic view of part A shown in FIG. 2 .

FIG. 4 is a schematic diagram of the system structure of this embodiment.

The names of the parts referred to by the numbers in the above drawings are as follows: 1. Chassis; 2. Upright column; 3. Operation panel; 4. Water container; 5. Accommodating tank; 6. Micro load cell; Quality support plate; 8. Circuit board; 9. Control module; 10. Frequency converter; 11. Power unit; 12. Speed measurement module; 13. Support rod; 14. Elastic film; 15. Prompt module; 16. Speed control module ; 17. Start the module; 18. Stop the module.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1 to FIG. 4 , a treadmill disclosed in this embodiment includes a chassis 1 and uprights 2 arranged on the front side of the chassis 1 . . The top of the column 2 is provided with an operation panel 3, and the operation panel 3 is used to set the running parameters of the treadmill, which belongs to common knowledge in the art, and will not be repeated here.

Further, one side of the operation panel 3 is provided with an accommodating groove 5 for placing the water container 4, and two accommodating grooves 5 are provided. You can place the water container 4 on the left or right side according to your own habits. Each accommodating slot 5 is cylindrical, and the water container 4 is preferably a sports bottle, which is not only easy to adapt to the shape of the accommodating slot 5, but also convenient for users to use during exercise.

Further, the bottom of the accommodating slot 5 is overhead with a miniature load cell 6, and the miniature load cell 6 is overhead at the bottom of the accommodating slot 5 through a support rod 13. The support rod 13 is provided with two, two support rods. 13 are respectively arranged on both sides of the micro load cell 6 and fixed on both sides of the inner wall of the accommodating groove 5 respectively. A hard support plate 7 is arranged above the miniature load cell 6 , the surface of the hard support plate 7 is preferably circular, and the outer edge of the hard support plate 7 and the inner wall of the accommodating groove 5 are arranged between A gap is maintained, so that the surface of the hard support plate 7 can not only adapt to the shape of the accommodating groove 5 , but also ensure that the rigid supporting plate 7 performs longitudinal reciprocating linear motion in the accommodating groove 5 . An elastic film 14 is attached to the upper surface of the rigid support board 7 . The elastic film 14 is preferably made of rubber, so it has better elasticity, and the elastic film 14 is pasted to the board of the rigid support board 7 through glue. noodle. The outer edge of the elastic film 14 is inserted into the inner side wall of the accommodating groove 5, which can not only ensure the up and down displacement of the rigid supporting plate 7, but also effectively fill the gap between the rigid supporting plate 7 and the inner wall of the accommodating groove 5. , to avoid water leakage at the bottom of the accommodating tank 5 . A circuit board 8 is disposed below the miniature load cell 6, and the circuit board 8 is preferably an integrated circuit board. The circuit board 8 is provided with a control module 9 coupled to the miniature weighing sensor 6 . The control module 9 is a chip with data processing capability, including but not limited to a single-chip microcomputer, a CPU, an MCU, and an ARM. A frequency converter 10 is coupled to the control module 9, and a power device 11 for controlling the running of the treadmill is coupled to the frequency converter 10. The power device 11 is preferably a motor, and the linkage structure between the power device 11 and the treadmill belongs to the present invention. Common knowledge in the field will not be repeated here. The power unit 11 is provided with a speed measuring module 12 to monitor the running speed of the power unit 11 , the speed measuring module 12 is preferably a motor speed measuring sensor, and the speed measuring module 12 is coupled to the control module 9 to send the measured running speed parameters to the control module 9 ; A reference speed value is preset in the control module 9, and the reference speed value can be adaptively adjusted according to the actual needs of the user.

In this embodiment, the micro load cell 6 is used to monitor the pressure value applied to the hard support plate 7 and send the monitored pressure value signal to the control module 9, and the control module 9 is used to receive the pressure value signal and output it The corresponding control signal, the frequency converter 10 is used to receive the control signal and output a voltage signal of the corresponding frequency to the power device 11, and the power device 11 responds to the voltage signal to control the running of the treadmill; when the frequency of the voltage signal output by the frequency converter 10 is higher , the higher the running speed of the power device 11 is; on the contrary, the lower the frequency of the voltage signal output by the inverter 10 is, the lower the running speed of the power device 11 is.

More specifically, when the micro load cell 6 detects that there is pressure on the hard support plate 7, it means that the water container 4 has been placed in the accommodating tank 5, and the user has not picked up the water container 4 to drink water. At this time, the control module 9 controls the inverter 10 to maintain the current output voltage signal parameters to control the power device 11 to maintain the current running state, so that the treadmill can maintain the current running speed, so that the user can run indoors more efficiently.

When the micro load cell 6 does not detect that there is pressure on the hard support plate 7 , it means that the user has taken out the water container 4 from the accommodating tank 5 . At this time, the control module 9 retrieves the running speed parameter of the power device 11 measured by the speed measuring module 12 and compares it with the built-in reference speed value. If the actual running speed value of the power device 11 is greater than the reference speed value, it means that the current running speed of the treadmill is When the running speed is too high, the control module 9 controls the inverter 10 to reduce the frequency and output the voltage signal to the power device 11 to control the power device 11 to decelerate to run until the actual running speed value measured by the speed measuring module 12 is equal to or less than the reference speed value, The control module 9 controls the frequency converter 10 to stop frequency reduction to maintain the current running speed of the power device 11 so that the treadmill can run at a lower speed to ensure the safety of the user during running and drinking.

On the contrary, if the actual running speed value of the power device 11 is less than or equal to the reference speed value, it means that the current running speed of the treadmill is at a relatively safe level. At this time, the control module 9 controls the frequency converter 10 to maintain the current output voltage signal parameters to maintain the current running speed of the power device 11, so that the treadmill can run at the current relatively safe speed; it not only saves power, but also ensures that the user is running Stability and safety during in-flight drinking.

Furthermore, the control module 9 is also coupled with a prompting module 15, and the prompting module 15 is an audible and/or light-emitting alarm. Among them, the sounding alarm is preferably a speaker or a buzzer, and the light-emitting alarm is preferably an LED prompt light. A pressure reference change value is also preset in the control module 9 . In this embodiment, the control module 9 makes a difference between the pressure value measured by the micro load cell 6 and the pressure value measured last time to obtain the pressure difference value, and compares the pressure difference value with the pressure reference change value; the The pressure difference represents the amount of water the user drinks during the run. During the running process, the user should not drink too much water each time. In order to ensure the health of the user during exercise, if the pressure difference value is greater than the pressure reference change value, it means that the user's water consumption is too large this time. At this time, the control module 9 controls The prompting module 15 instructs to remind the user to reduce the amount of drinking water; on the contrary, if the pressure difference is less than or equal to the pressure reference change value, it means that the current drinking water of the user is normal, and the prompting module 15 does not instruct at this time.

Furthermore, the control module 9 is also coupled to a speed control module 16 for outputting a speed control signal to the control module 9 in response to an external trigger. The speed control module 16 is preferably a physical button or a virtual button integrated in the touch screen. The control module 9 controls the frequency converter 10 to change the frequency of the output voltage signal in response to the speed regulation signal to control the speed of the power device 11 so that the user can adjust the running speed of the treadmill by triggering the speed regulation module 16 .

Furthermore, the control module 9 is also coupled to an activation module 17 for outputting an activation signal to the control module 9 in response to an external trigger. The activation module 17 is preferably a physical button integrated on the operation panel 3 . The control module 9 controls the inverter 10 to output a voltage signal of a specific frequency to the power device 11 in response to the start signal, so as to make the power device 11 run, so that the user can start the treadmill by triggering the start module 17 .

Furthermore, the control module 9 is also coupled to a stop module 18 for outputting a stop signal to the control module 9 in response to an external trigger. The stop module 18 is preferably a physical button integrated on the operation panel 3 . The control module 9 controls the inverter 10 to stop outputting the voltage signal in response to the stop signal, so as to stop the power device 11 from running, so that the user can control the treadmill stop by triggering the stop module 18 .

Embodiments of the present invention

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Industrial Applicability

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Sequence Listing Free Content

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Claims

A treadmill, comprising a chassis (1) and a column (2) arranged on the front side of the chassis (1), characterized in that: an operation panel (3) is arranged on the top of the column (2), and one of the operation panels (3) The side opening is provided with an accommodating groove (5) for placing the water container (4); the bottom of the accommodating groove (5) is overhead with a miniature load cell (6), and a hard disk is arranged above the miniature load cell (6). a supporting plate (7); a gap is maintained between the outer edge of the hard supporting plate (7) and the inner wall of the accommodating groove (5); a circuit board (8) is arranged below the micro-loading sensor (6), The circuit board (8) is provided with a control module (9) coupled to the miniature load cell (6), a frequency converter (10) is coupled to the control module (9), and a frequency converter (10) is coupled to A power device (11) for controlling the running of the treadmill; a speed measurement module (12) is provided on the power device (11) to monitor the running speed of the power device (11), and the speed measurement module (12) is coupled to the control module (9) to The measured running speed parameter is sent to the control module (9); a reference speed value is preset in the control module (9);

The miniature load cell (6) is used for monitoring the pressure value applied to the hard support plate (7) and sending the monitored pressure value signal to the control module (9), and the control module (9) is used for receiving the pressure value signal and output the corresponding control signal, the frequency converter (10) is used for receiving the control signal and outputting the voltage signal of the corresponding frequency to the power device (11), and the power device (11) responds to the voltage signal to control the running of the treadmill;

When the micro load cell (6) detects that there is pressure on the hard support plate (7), the control module (9) controls the frequency converter (10) to maintain the current output voltage signal parameters, so as to control the power device (11) to maintain current operating state;

When the micro load cell (6) does not detect that there is pressure on the hard support plate (7), the control module (9) acquires the running speed parameter of the power device (11) measured by the speed measuring module (12) and matches it with The built-in reference speed values are compared, and if the actual running speed value of the power unit (11) is greater than the reference speed value, the control module (9) controls the frequency converter (10) to down-convert the output voltage signal to the power unit (11) to control the power The device (11) decelerates to run until the actual running speed value measured by the speed measuring module (12) is equal to or less than the reference speed value, and the control module (9) controls the frequency converter (10) to stop frequency reduction, so as to maintain the current value of the power device (11). running speed;

On the contrary, if the actual running speed value of the power device (11) is less than or equal to the reference speed value, the control module (9) controls the frequency converter (10) to maintain the current output voltage signal parameters, so as to maintain the current running speed of the power device (11). .
The treadmill according to claim 1, characterized in that: the miniature load cell (6) is suspended at the bottom of the accommodating groove (5) through the support rod (13).
The treadmill according to claim 1, characterized in that: an elastic film (14) is attached to the upper surface of the hard support plate (7), and the outer edge of the elastic film (14) is inserted into the accommodating groove ( 5) of the inner wall.
The treadmill according to claim 1, 2 or 3, characterized in that: the control module (9) is further coupled with a prompt module (15), and a pressure reference change value is preset in the control module (9); the control module (9) Make a difference between the pressure value measured by the miniature load cell (6) and the pressure value measured last time to obtain the pressure difference value, and compare the pressure difference value with the pressure reference change value;

If the pressure difference value is greater than the pressure reference change value, the control module (9) controls the prompting module (15) to give an indication; otherwise, if the pressure difference value is less than or equal to the pressure reference change value, the prompting module (15) does not give an indication.
The treadmill according to claim 4, characterized in that: the prompting module (15) is an audible and/or luminous alarm.
The treadmill according to claim 1, characterized in that: the control module (9) is further coupled with a speed control module (16) for outputting a speed control signal to the control module (9) in response to an external trigger, and the control module (9) ) controls the frequency converter (10) to change the frequency of the output voltage signal in response to the speed regulation signal, so as to control the speed change of the power plant (11).
The treadmill according to claim 1, characterized in that: the control module (9) is further coupled to an activation module (17) for outputting an activation signal to the control module (9) in response to an external trigger, and the control module (9) responds The frequency converter (10) is controlled to output a voltage signal of a specific frequency to the power device (11) according to the starting signal, so as to make the power device (11) run.
The treadmill according to claim 1, characterized in that: the control module (9) is further coupled with a stop module (18) for outputting a stop signal to the control module (9) in response to an external trigger, and the control module (9) responds The frequency converter (10) is controlled to stop outputting a voltage signal according to the stop signal, so that the power device (11) stops running.