Plug-in-free anti-sliding stair climbing training machine

Abstract

The invention discloses a plug-in-free anti-sliding stair climbing training machine, which comprises a main frame, a casing, a panel, a step chain plate, a motor assembly and a transmission assembly, the panel with a built-in master controller is mounted on the top side of the main frame and exposed out of the casing, and the motor assembly and the transmission assembly are integrally connected and linked based on the main frame and drive the step chain plate to roll circularly. The motor assembly is provided with a generator, a speed reducer and a reverse driving chain wheel, particularly, an input shaft of the speed reducer is sleeved with a brake, and the brake is controlled by the master controller to release operation and lock output of the speed reducer. According to the stair-climbing training machine, the brake is additionally arranged in the reverse driving link of the off-source equipment, the situation of possible sudden failures in the starting, stopping and running process of the equipment is intervened and controlled, automatic running of the transmission assembly due to the influence of the step chain plate and the load gravity of the step chain plate can be blocked in time, the safety guarantee of a stair-climbing trainee is greatly improved, and the working efficiency of the stair-climbing trainee is improved. And meanwhile, the control somatosensory of the user is enhanced.

Description

Technical Field

[0001] The present invention relates to a fitness device for indoor use, and particularly to a stair climbing training machine with self-power generation and improved safety and reliability, belonging to the technical field of mechatronics. Background Art

[0002] The pursuit of a healthy life is the consistent and urgent pursuit of the general public. With the rise and wide promotion of national fitness, from parenting centers, indoor and outdoor children's physical exercise and entertainment projects, school physical education, household small fitness appliances and equipment, to various commercial gyms, stadiums, etc., places and equipment related to physical exercise have been widely invested in construction and equipment replacement.

[0003] Especially in gyms and ordinary families, treadmills are relatively common. However, usually, the space occupied by such machines cannot be ignored, and the exercise content is single, and there is even noise pollution. Therefore, in recent years, a mountain climbing machine that simulates outdoor ladder climbing has emerged, and is also widely named a stair climbing training machine in the industry. It can simulate a mountain climbing trail of hundreds or thousands of meters in a limited space, and the exercise amount and energy consumption of stair climbing training are often several times that of traditional running. Under the continuous movement of overcoming gravity, it can achieve the shaping needs such as accelerating fat consumption and tightening hip and leg muscles.

[0004] For existing stair climbing training machines, although they have got rid of the dependence on external power supply of traditional treadmills and turned into a self-power generation operation mode of converting mechanical energy into electrical energy, usually when stepping on the steps at the starting stage, the machine will slowly slide backward, and as long as there is still a person standing on the ladder chain plate after the exercise ends, it will also keep sliding backward at a low speed until the inertia ends after the device leaves the person before it can completely stop, thus bringing an uncomfortable exercise experience. At the same time, since all the mechanical moving parts of this type of training machine are located inside the machine shell and damage is difficult to prevent and control, the safety risk increases synchronously as the exercise intensity of the user increases; especially when there are large differences in the height and weight of users, human accidental injuries such as slipping and spraining joints are often caused by mechanical failures of the stair climbing training machine. Summary of the Invention

[0005] The purpose of the present invention is to provide a stair climbing training machine that is plug-free and anti-sliding, so as to solve the problem of improving the safety and reliability of the use of stair climbing training machines.

[0006] The technical solution of the present invention to achieve the above object is a stair climbing training machine that is plug - free and anti - slipping. It includes a main frame, a housing, a panel, a stepped chain plate, a motor assembly, and a transmission assembly. The panel with a built - in main controller is installed on the top side of the main frame and exposed outside the housing. The motor assembly and the transmission assembly are integrally connected and linked based on the main frame and drive the stepped chain plate to roll cyclically. Among them, the motor assembly is provided with a generator, a reducer, and a reverse drive sprocket. The generator is connected to the input shaft of the reducer through a transmission belt. The transmission assembly is embedded with a pair of vertically distributed fixed - axis sprockets on both sides of the main frame. A closed - loop transmission chain is sleeved on each pair of fixed - axis sprockets. Both ends of several pivot shafts of the stepped chain plate are connected to the transmission chain at equal intervals. The reverse drive sprocket is coaxially installed and synchronously rotated with the two upper fixed - axis sprockets. It is characterized in that: more than two traction chains are sleeved between the output end of the reducer and the reverse drive sprocket. A brake is sleeved on the input shaft of the reducer, and the brake is controlled by the main controller to release and run towards the reducer and lock the output.

[0007] For the above - mentioned stair climbing training machine that is plug - free and anti - slipping, further, a first sensor for detecting chain breakage of the traction chain is provided in the main frame and signals are fed back to the main controller. In the state where any traction chain is disconnected, the brake is controlled to lock the output of the reducer, causing the transmission assembly to stop rotating.

[0008] For the above - mentioned stair climbing training machine that is plug - free and anti - slipping, further, the generator is provided with a second sensor for detecting torque and speed and signals are fed back to the main controller. The main controller has a speed regulation range of the stair climbing training machine built - in. In the state where the measured speed of the second sensor exceeds the warning value of the speed regulation range, the main controller outputs a warning signal. And in the state where the speed exceeds the upper limit of the speed regulation range, the brake is controlled to lock the output of the reducer, causing the transmission assembly to stop rotating.

[0009] For the above - mentioned stair climbing training machine that is plug - free and anti - slipping, further, a grating - type third sensor is provided in the standing space of the main frame corresponding to the lowest step of the stepped chain plate. When the stair climbing training machine is running and the grating is blocked, the brake is controlled to lock the output of the reducer, causing the transmission assembly to stop rotating.

[0010] For the above - mentioned stair climbing training machine that is plug - free and anti - slipping, further, the panel is provided with a charging interface and a built - in battery. The main controller takes power from the battery. The generator, the battery, and a braking resistor for releasing excess electrical energy are connected into a charging circuit. The value of the braking resistor is 500 - 700Ω.

[0011] For the above - mentioned stair climbing training machine that is plug - free and anti - slipping, further, handrail frames are installed on both sides of the steps formed by the stepped chain plate of the main frame. And the handrail frames are distributed with more than two types of gripping parts and are integrally provided with control buttons and emergency stop buttons that are signal - interconnected with the main controller.

[0012] The above-mentioned plug-free anti-backsliding stair climbing training machine, further, the main body of the handrail frame is formed by bending and welding stainless steel pipes, and an insulating and heat-conductive electric heating wire is inserted into the stainless steel pipes. The electric heating wire is connected to the control button to form a circuit.

[0013] The above-mentioned plug-free anti-backsliding stair climbing training machine, further, the main frame is provided with a temporary platform exposed outside the casing at the middle step of the ladder chain plate near the bottom side of the handrail frame.

[0014] The above-mentioned plug-free anti-backsliding stair climbing training machine, further, the main frame is provided with an integrally extended mobile phone bracket and a storage tray at the bottom side of the panel.

[0015] The above-mentioned one with a resistance motor, further, the main frame is provided with a blower that blows air to both sides of the fuselage in the lower space where the ladder chain plate circulates and rolls. The blower is powered by the panel and is controlled to operate.

[0016] Applying the stair climbing training machine of the present invention, it has substantial features and progressiveness: a brake is added to the reverse drive link of the off-source stair climbing training equipment to intervene and control the start-stop of the equipment and possible sudden failure situations during operation, and it can timely block the automatic operation of the transmission components affected by the gravity of the ladder chain plate and its load, greatly improving the safety guarantee of the climbers during the stair climbing training, and at the same time enhancing the user's control experience. Brief Description of the Drawings

[0017] Figure 1 is the overall assembly structure schematic diagram of a preferred embodiment of the stair climbing training machine of the present invention.

[0018] Figure 2 is Figure 1 the close-up structure schematic diagram of the motor assembly in the shown stair climbing training machine.

[0019] Figure 3 is the external structure schematic diagram of another preferred embodiment of the stair climbing training machine of the present invention. Detailed Description of the Preferred Embodiment

[0020] The following will further elaborate on the specific implementation manners of the present invention in conjunction with the accompanying drawings of the embodiments, so that the technical solutions of the present invention are easier to understand and master, thereby making a clearer definition of the protection scope of the present invention.

[0021] The designer of the present invention, aiming at the many deficiencies exposed in the actual use of the existing off-source stair climbing training equipment, through technical research on aspects such as the equipment structure and power transmission, innovatively proposed a plug-free anti-backsliding stair climbing training machine to improve the safety and reliability of such stepped equipment during physical training and avoid accidents such as accidental falls, bumps, and sprains.

[0022] The preferred embodiment of the stair climbing training machine is as followsFigure 1 and Figure 2 As shown, its general structural composition is as follows: It includes a main frame 1, a casing 2, a panel 3, a stepped chain plate 4, a motor assembly 5 and a transmission assembly 6. It can be seen from the figure that the panel 3 with a built-in main controller is installed on the top side of the main frame 1 and exposed outside the casing 2, and its height is suitable for adapting to the human-computer interaction of the climber and facilitating operation. The motor assembly 5 and the transmission assembly 6 are integrally connected and linked based on the main frame 1 and drive the stepped chain plate 4 to roll cyclically, while generating resistance to the stepped cycle; this is consistent with the basic principle of the existing off-source stair climbing trainer in the market. As the main feature of the technical innovation of this application, the motor assembly 5 is provided with a generator 51, a reducer 52 and a reverse drive sprocket 53. The reducer 52, defined by its function, is actually a gearbox with relatively strong practicality such as being meshed by several large and small gears and having functions of transmission and torque amplification. A brake 7 is sleeved on the input shaft thereof, and the brake 7 is driven by the main controller to release and lock the output facing the reducer. Also, since the brake is installed on the reducer, the torque and power required for it to intervene in the start and stop of the entire trainer are small, and its braking torque is only 10 ± 2 N·m.

[0023] To better understand the principle characteristics of the above technical improvement, it is necessary to further clarify the transmission principle of the stair climbing trainer. Specifically, the transmission assembly 6 is embedded with a pair of fixed-axis sprockets distributed up and down on both sides of the main frame 1. A closed-loop transmission chain 63 is sleeved on the upper fixed-axis sprocket 61 and the lower fixed-axis sprocket 62 on one side. The same is set on the other side. The two upper fixed-axis sprockets are installed on a fixed shaft close to the panel through bearings, and the two lower fixed-axis sprockets are also installed on a fixed shaft close to the ground through bearings. Both fixed shafts are integrally installed and fixed with the main frame. Both ends of the several pivot shafts 41 of the above-mentioned stepped chain plate 4 are connected to the transmission chain 63 at equal intervals. The stepped chain plate between any two pivot shafts is formed into a stepped shape, that is, in a side view, it is the hypotenuse with a fixed length of the transmission chain, and the two stepped chain plates are formed into the two right-angled sides of a triangle. And with the cyclic rolling of the transmission chain, the stepped chain plate adaptively adjusts its bending shape at the two fixed-axis sprockets due to the change in the distance between the two pivot shafts, reducing its space occupation in the casing. Combining Figure 1 and Figure 2 the details of, the generator 51 in the motor assembly is connected to the input shaft 521 of the reducer 52 through a transmission belt 54, and the reverse drive sprocket 53 is coaxially installed with the two upper fixed-axis sprockets on the upper side. More than two traction chains 64 are sleeved on the output end 522 of the reducer 52 and the reverse drive sprocket 53.

[0024] Under normal circumstances where no brake is set, when a user steps onto the steps formed by the stepped chain plates, they will slowly slide down under the action of their own gravity, and thus the transmission assembly will start to slowly accelerate. The reverse drive sprocket is also driven synchronously, and its axial rotation is transmitted to the generator through the traction chain, reducer, and drive belt. The generated electrical energy will feedback and supplement the energy storage of the relevant circuits of the main controller (assuming that the main controller is equipped with a short-term wake-up and initialization battery unit). As the climbing training progresses, the generator outputs a reverse torque through the reverse drive sprocket to increase the circulating rolling resistance of the stepped chain plates, thereby effectively preventing the speed of the climbing movement from getting out of control and meeting the required exercise intensity load. Here, two traction chains are provided to prevent the power transmission between the motor assembly and the transmission assembly from being disconnected in the event of a single chain break, which would cause the reverse torque to disappear and the transmission assembly to accelerate significantly, leading to a safety accident. Even if one of the traction chains breaks and the other remains intact, the two assemblies can still be linked for a short time, leaving a buffer time for the brake trigger device to stop the machine.

[0025] From the various possibilities of triggering the shutdown of this climbing training machine, first, a first sensor 81 for detecting chain breakage of the traction chain is provided in the above-mentioned main frame 1 and signals are fed back to the main controller. Thus, in the event of a break in any of the traction chains, the brake will be controlled to lock the output of the reducer, causing the transmission assembly to stop rotating. Second, the above-mentioned generator 51 is equipped with a second sensor 82 for detecting torque and speed and signals are fed back to the main controller. As a product factory preset parameter, the main controller has a speed regulation range of the climbing training machine built in. When the measured speed by the second sensor exceeds the warning value of the speed regulation range, the main controller outputs a warning signal to remind the climbing training personnel to adjust their step frequency in time to slow down the climbing speed; and when the climbing training personnel ignore the reminder and increase the speed beyond the upper limit of the speed regulation range, the brake is controlled to lock the output of the reducer, causing the transmission assembly to stop rotating. It should be noted that the measured speed by the second sensor is the angular velocity, and the speed regulation range can correspond to the climbing height per unit time or the circulating speed of the stepped chain plates, etc. On the premise that the height of each step formed by the stepped chain plates, the diameter of the transmission sprocket, the distance between each axis, and the speed ratio of the reducer are known, the conversion relationship between the measured speed and the speed regulation range is easily mastered by those skilled in the art and set in the main controller. Finally, a third sensor 83 in the form of a grating is provided in the standing space corresponding to the lowest step of the stepped chain plates in the above-mentioned main frame 1 and signals are fed back to the main controller. When the climbing training machine is running and the grating is blocked (indicating that there is an external object approaching or the fitness person loses speed while climbing, there is a risk of falling, etc.), similarly, the brake is controlled to lock the output of the reducer, causing the transmission assembly to stop rotating.

[0026] As a technical supplement and improvement to the stair-climbing trainer, the above-mentioned panel 3 is provided with a display for human-computer interaction and internally installed with a circuit board and a battery. The circuit board integrates electronic components such as a main controller (CPU / MCU) and resistors and is connected with an external charging interface. The main controller obtains power from the battery, and the power output end of the above-mentioned generator is connected to the battery and a braking resistor for releasing excess power to form a charging circuit. The value of the braking resistor is 500-700Ω. Under the control of the charging circuit of the circuit board, the generator charges the battery, and in the fully charged state, the excess power maintains the operation of the panel or the power supply of the peripherals of the stair-climbing trainer. For example, an optional Bluetooth speaker, a cooling fan facing the user, etc. Thus, the stair-climbing trainer does not need to be plugged in for use, and the energy storage capacity of its battery (removable and replaceable when necessary) only needs to meet the system activation of the main controller and the first state switch of the brake.

[0027] In view of the high exercise volume of stair climbing, it can be understood that the ground under and around the trainer is often wet with a large area of sweat, causing the risks of sweat corrosion and slipperiness. Therefore, it is optional that the above-mentioned main frame is provided with a blower under the space where the stepped chain plate circulates and rolls, which blows air to both sides of the fuselage and the stepped chain plate. And when the battery energy storage and the power supply of the generator are sufficient, the blower can be powered by the battery in the panel and controlled to operate, eliminating the trouble of sweat accumulation; at the same time, it keeps the air circulation inside the machine, assists in the ventilation and heat dissipation of the venue, provides a comfortable exercise environment, and reduces the body temperature of fitness personnel.

[0028] As Figure 3 Shown in the appearance diagram of the preferred embodiment, on the basis of the following preferred embodiment, the main frame 1 is further installed with handrail frames 21 on both sides of the steps formed by the stepped chain plate. The handrail frames 21 are distributed with more than two types of gripping parts and integrally provided with a control button 214 and an emergency stop button 213 that are signal-interconnected with the main controller. As shown in the figure, the gripping part can be a straight rod handrail 211 or a loop handle 212, and of course, it can also be a cross bar of various shapes. When the stair-climbing trainer is used in a public fitness venue, these gripping parts need to be disinfected periodically due to being contaminated by hand sweat. Therefore, the main body of the above-mentioned handrail frame is bent and welded by stainless steel pipes, rather than being wrapped with plastics, foam cotton, etc. that are not conducive to cleaning. However, in winter, the touch of these gripping parts is often not good. Therefore, an insulating and heat-conductive electric heating wire can be optionally inserted into the above-mentioned stainless steel pipe. The electric heating wire is connected to the control button to form a circuit and is controlled to start or stop heating.

[0029] Meanwhile, in order to enable the climber training user to quickly disengage from the ladder chain plate at the end of high-speed training and stand steadily on both feet, a temporary platform 22 exposed outside the casing is provided at the bottom side of the handrail frame of the main frame 1 near the middle step of the ladder chain plate. After the ladder chain plate decelerates to zero or the operation panel issues a stop command to lock the brake and stop the machine, the user can slowly walk downstairs and leave the equipment. In order to facilitate the climber training user to place personal items, especially when the mobile phone needs to maintain human-machine interaction, a mobile phone bracket and a storage tray 23 are integrally extended at the bottom side of the panel of the main frame 1.

[0030] Based on the working principle and actual measurement training of this climber training machine are as follows: In the non-use state, the panel and the main controller therein are in the standby silent mode, while the rest are in a static state. When climber training is required, since the brake is de-energized to lock the reducer from running, there will be no more slipping when the user steps upward to the middle step. Only when the user operates the panel to activate the built-in system of the main controller and inputs a start signal, the main controller signals to trigger the brake to release the reducer, and the steps formed by the ladder chain plate will slowly move as the transmission component is unlocked, and the electric component runs synchronously to generate electricity and form a reverse torque, entering the normal climber training state. When the user finishes training, just operate the panel or directly issue a stop signal through the emergency stop button, and the ladder chain plate can be locked and fixed in time after deceleration, and the trainer can safely exit the equipment. Of course, during the training process, if one of the traction chains breaks, the measured speed exceeds the speed regulation range, the human-machine speed is unbalanced and the user falls, etc., the main controller will respond according to the detection signals fed back by each sensor, trigger the brake to lock the transmission component in time, and prevent the accident and injury from expanding.

[0031] In summary, regarding the scheme introduction and detailed description of the embodiment of the non-plug-in anti-slip climber training machine of the present invention, this scheme has prominent substantial features and remarkable progressiveness, and its technical advantages are as follows: A brake is added to the reverse drive link of the off-source climber training equipment to intervene and control the possible sudden failure situations during the start, stop and operation of the equipment, and can timely block the automatic operation of the transmission component affected by the gravity of the ladder chain plate and its load, greatly improving the safety guarantee of the climber training user, and at the same time enhancing the user's control experience.

[0032] In addition to the above embodiments, the present invention can also have other implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A plug-in-free anti-slip stair climbing training machine, comprising a main frame, a casing, a panel, a step chain plate, a motor assembly and a transmission assembly, wherein the panel of the built-in main controller is mounted on the top side of the main frame and exposed to the casing, and the motor assembly and the transmission assembly are linked based on the main frame and drive the step chain plate to circulate and roll, wherein the motor assembly is provided with a generator, a reducer and a reverse drive sprocket, the generator is connected to the input shaft of the reducer through a transmission belt, and the transmission assembly is embedded with a pair of fixed-axis sprockets distributed up and down on both sides of the main frame, and a closed-loop transmission chain is sleeved on each pair of fixed-axis sprockets, and the two ends of the several pivots of the step chain plate are equidistantly connected to the transmission chain, and the reverse drive sprocket is coaxially mounted with the two fixed-axis sprockets on the upper side and rotates synchronously, characterized in that: The output end of the reducer and the reverse driving sprocket are sleeved with more than two traction chains, the input shaft of the reducer is sleeved with a brake, and the brake is controlled by the main controller to release the reducer and lock the output.

2. The plug-free anti-slip stair climbing training machine according to claim 1 is characterized in that: The main frame is provided with a first sensor facing the traction chain to detect chain breakage and to feed back a signal to the main controller. When any traction chain is disconnected, the brake is controlled to lock the reducer output to stop the transmission assembly.

3. The plug-free anti-slip stair climbing training machine according to claim 1, characterized in that: The generator is provided with a second sensor for detecting torque and speed and providing signal feedback to the main controller. The main controller has a built-in speed regulation range of the stair climbing training machine. When the actual speed measured by the second sensor exceeds the warning value of the speed regulation range, the main controller outputs a warning signal, and when the speed exceeds the upper limit of the speed regulation range, the brake is controlled to lock the reducer output to stop the transmission assembly.

4. The plug-free anti-slip stair climbing training machine according to claim 1, characterized in that: The main frame is provided with a grating-type third sensor in the standing space corresponding to the lowest step of the ladder chain plate. When the stair climbing training machine is running and the grating is blocked, the brake is controlled to lock the reducer output to stop the transmission component.

5. The plug-free anti-slip stair climbing training machine according to claim 1, characterized in that: The panel is provided with a charging interface and a built-in battery. The main controller draws power from the battery. The generator, the battery, and a brake resistor that releases excess electric energy are connected to form a charging circuit. The value of the brake resistor is 500-700Ω.

6. The plug-free anti-slip stair climbing training machine according to claim 1, characterized in that: The main frame is provided with handrails on both sides of the steps formed by the ladder chain plates, and the handrails are provided with more than two kinds of gripping parts and are integrated with control buttons and emergency stop buttons interconnected with the main controller signal.

7. The plug-free anti-slip stair climbing training machine according to claim 6, characterized in that: The handrail frame body is formed by bending and welding a stainless steel pipe, and an insulating and heat-conducting electric heating wire is inserted into the stainless steel pipe, and the electric heating wire is connected with the control button to form a loop.

8. The plug-free anti-slip stair climbing training machine according to claim 6, characterized in that: The main frame is provided with a temporary platform exposed from the casing at the bottom side of the handrail frame near the middle step of the ladder chain plate.

9. The plug-free anti-slip stair climbing training machine according to claim 1, characterized in that: The main frame is provided with an integrally extended mobile phone bracket and a storage tray at the bottom side of the panel.

10. The plug-free anti-slip stair climbing training machine according to claim 1, characterized in that: The main frame is provided with a blower for blowing air toward both sides of the fuselage in the space below the step chain plate where the step chain plate circulates and rolls. The blower is powered by a panel and operates in a controlled manner.

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