A running device with automatic correction of dynamic balance for great health

Abstract

The present invention discloses a large-scale health dynamic balance automatic correction running device, which relates to the field of treadmill detection devices. The present invention includes an adjustment mechanism and a detection mechanism. The detection mechanism includes a tension detection component for detecting the fixed-point pressure of the running belt on the side surface of the driven roller end, and a position detection component for detecting the degree of offset of the positioning shaft end. The driven roller is sleeved on the middle part of the positioning shaft and is movably arranged with the positioning shaft. There are two tension detection components and two position detection components; the two tension detection components are symmetrically distributed on the entire positioning shaft. The present invention makes the detection end of the pressure sensor face the driven roller and the roller, so that the pressure detected by the pressure sensor is always the directional and fixed-point positive pressure of the running belt on the roller, thereby avoiding the problem of large pressure sensor detection error caused by the offset of the driven roller and the positioning shaft or the change of the comprehensive pressure direction of the running belt due to the shrinkage and expansion of the running belt.

Description

Technical Field

[0001] The present invention relates to the field of treadmill detection devices, in particular to a treadmill device for automatic correction of dynamic balance in health. Background Art

[0002] Big health is a holistic concept based on the changing times, societal needs, and the changing spectrum of diseases. It advocates more than just a healthy lifestyle. For people to get a healthy and scientific workout at home, they often use home fitness equipment, and treadmills are a very good choice. Treadmills typically use a motor-driven active roller to rotate the running belt, which in turn drives the driven roller. The driven roller is mounted on a positioning shaft, which is connected to the treadmill frame via a screw. All treadmills require belt adjustment before shipment and after installation. However, after a period of use, belt slack may occur due to deflection of the driven roller and stretching of the running belt. This can cause problems such as stalling and slipping during running, compromising safety. If this occurs, the tightness of the running belt can be adjusted by turning the screw to adjust the position of the driven roller and the positioning shaft.

[0003] Patent CN 214074876 U discloses a "rear roller adjustment mechanism, running belt tensioning device, treadmill, and walking machine." This treadmill automatically tightens or loosens the running belt by "mounting a pressure sensor on a sensor mounting base, with the pressure sensor abutting the end of the rear roller to detect the pressure exerted by the rear roller on the drive unit under the action of the endless running belt." Furthermore, the treadmill "controls the drive unit by detecting the pressure exerted by the rear roller on the drive unit under the action of the endless running belt, causing the drive unit to drive the sensor mounting base to move longitudinally, thereby causing the end of the rear roller corresponding to the pressure sensor to move longitudinally." However, when using a pressure sensor to detect the pressure exerted by the running belt on the driven roller, it is necessary to ensure that the measured pressure is the positive pressure exerted by the running belt on the driven roller; otherwise, measurement errors may occur. This treadmill measures the pressure of the running belt on the driven roller by pressing the pressure sensor against the positioning shaft. The following two situations may occur, resulting in the pressure value measured by the pressure sensor not being the positive pressure of the running belt on the driven roller: First, when the driven roller of the treadmill is offset or the pressure of the running belt on the driven roller changes due to the shrinkage and expansion of the running belt, the running belt and the driven roller will become loose, and the contact surface between the two will change, causing the direction of the comprehensive pressure of the running belt on the driven roller to change. In this case, if the pressure sensor is pressed against the positioning shaft to measure the pressure of the running belt on the driven roller, the pressure detected by the pressure sensor will have a large error due to the change in pressure direction; second, the positioning shaft is offset. In this case, not only can the pressure sensor not face the positioning shaft, but the angle between the pressure sensor and the positioning shaft will also change frequently. At this time, the direction of the comprehensive pressure applied by the positioning shaft to the pressure sensor is inconsistent with the measurement direction of the pressure sensor, which will also make the pressure value measured by the pressure sensor inaccurate.

[0004] Therefore, the treadmill disclosed in this patent has the following problems:

[0005] In the automatic correction of dynamic balance, the change in the direction of the comprehensive pressure of the running belt on the roller and the change in the direction of the comprehensive pressure of the positioning axis on the pressure sensor make the pressure sensor detection error large. For this reason, we propose a large-scale dynamic balance automatic correction running device. Summary of the Invention

[0006] The purpose of the present invention is to provide a running device with automatic correction of dynamic balance for health, which can effectively solve the problems raised in the background technology.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention is a large-scale health dynamic balance automatic correction running device, including a running belt, a driven roller, and a positioning shaft arranged on the inner side of a frame, and also including an adjustment mechanism and a detection mechanism arranged on the end side of the frame. The detection mechanism includes a tension detection component for detecting the fixed-point pressure of the running belt on the end side of the driven roller, and a position detection component for detecting the degree of offset of the end of the positioning shaft. The driven roller is sleeved on the middle part of the positioning shaft and is movably arranged with the positioning shaft. Two of the tension detection components and two of the position detection components are provided; the two tension detection components are symmetrically distributed on the entire positioning shaft, and the two position detection components are symmetrically arranged on the entire frame of the treadmill.

[0009] An annular groove is provided at the end of the driven roller, and the tension detection assembly includes a mounting seat fixedly arranged at the end of the positioning shaft, a pressure sensor fixedly arranged at one end of the mounting seat, and a roller movably arranged at the other end of the mounting seat. The mounting seat is located inside the annular groove and is movably arranged with the driven roller. The roller is in conflict with the inner wall of the running belt and faces the detection end of the pressure sensor. The pressure sensor is used to detect the positive pressure of the running belt on the driven roller.

[0010] To address the problem of large pressure sensor detection errors caused by changes in the direction of the combined pressure, this design features a fixed mounting base and a positioning shaft that are perpendicular to each other. The sensing end of the pressure sensor faces the driven roller and the roller. This ensures that even if the driven roller shifts or the running belt expands or contracts, the pressure detected by the pressure sensor is always the positive pressure of the running belt against the roller, measured at the fixed point. The fixed point refers to the contact point between the running belt and the roller. This prevents large pressure sensor detection errors caused by shifting of the driven roller or the positioning shaft, or changes in the direction of the combined pressure due to belt expansion or contraction. By detecting the positive pressure of the running belt against the side of the driven roller, and the changes in the positive pressure, the pressure changes of the driven roller on the running belt can be more clearly and accurately reflected, significantly improving detection accuracy and effectively detecting whether the running belt is loose, allowing for timely correction and avoiding safety hazards caused by unbalanced running of the running belt.

[0011] A wiring shaft is provided at the center of the end of the positioning shaft, and the position detection component includes three distance measuring components arranged at the end of the positioning shaft and equidistantly distributed between each other. The positioning shaft is located at the center of the three distance measuring components. The distance measuring component includes an encoder, a winding shaft arranged at the output end of the encoder, a wire adjustment plate, and a measuring rope in a tensioned state. The wire adjustment plate is fixedly provided on one side of the encoder, and a limiting hole is provided inside one end of the wire adjustment plate for directional extension of the measuring rope. A limiting groove is provided on the side of the winding shaft for winding the measuring rope. One end of the measuring rope is fixedly provided on the inner wall of the limiting groove, and the other end of the measuring rope passes through the limiting hole and is fixedly connected to the side of the wiring shaft.

[0012] This design is capable of detecting the offset distances of the driven roller and the two ends of the positioning shaft. This design sets the initial position of the positioning shaft, a threshold for the offset amplitude at both ends of the positioning shaft, and a threshold for the offset amplitude difference at both ends of the positioning shaft. This design uses three-point positioning to measure the position of each adjusted connecting shaft, thereby measuring the position of each end of the positioning shaft. After the positioning shaft is adjusted using a screw to correct the running belt balance, the position of each end of the positioning shaft is determined. The offset position of the two ends of the positioning shaft is compared with the initial position of the two ends of the positioning shaft to determine the offset amplitude at both ends of the positioning shaft. When the offset amplitude at both ends of the positioning shaft exceeds the set threshold range for the offset amplitude at both ends of the positioning shaft, it is considered that both sides of the running belt are overstretched, the running belt quality has been significantly degraded, and the running belt needs to be replaced. When the threshold for the offset amplitude difference at both ends of the positioning shaft exceeds the range, it is considered that at least one side of the running belt is overstretched. In this case, correcting the running belt balance will cause excessive pressure on the threads between the positioning shaft and the screw, resulting in damage. The offset amplitude at both ends of the positioning shaft is compared with the initial position of the positioning shaft, and the direction of the offset amplitude at both ends of the positioning shaft refers to the radial direction of the initial position of the positioning shaft. If the offset amplitude at both ends of the positioning shaft in the radial direction exceeds the threshold, it is considered that the thread between the positioning shaft and the screw rod will be damaged due to excessive pressure. Therefore, this design can promptly detect the problem of excessive stretching on both sides of the running belt, which greatly reduces the quality of the running belt; and can promptly detect the problem of excessive stretching on at least one side of the running belt, so as to avoid damage caused by excessive pressure on the thread between the positioning shaft and the screw rod, thereby ensuring the safe use of the treadmill. Based on the problems promptly reflected by the detection structure, the running belt can be replaced and repaired in a timely manner.

[0013] Based on the three-point positioning of this design, the radius of the winding shaft is a fixed value. The winding shaft rotates accordingly when the measuring rope is pulled out or reeled in, so that the measuring rope is always in a taut state. After the connecting shaft moves, the measuring rope in each distance measuring component will be pulled out or reeled on the winding shaft. The winding shaft rotates accordingly when the measuring rope is pulled out or reeled in. During the rotation of the winding shaft, the encoder measures the extension or contraction length of the corresponding measuring rope by measuring the rotation angle of the winding shaft. By comparing the initial extension length of the corresponding measuring rope, the position of the connecting shaft after movement can be determined, and then the position of the positioning shaft end after offset can be determined. This design has higher accuracy in measuring the position of the positioning shaft end, which is conducive to the precise positioning of the positioning shaft end.

[0014] Preferably, an inner groove is provided inside the mounting seat, and the tension detection component further includes a moving component movably arranged inside one end of the mounting seat adjacent to the roller, a pressure ring plate and a spring arranged in the inner groove, one end of the spring is in conflict with one end of the moving component, and the other end of the spring is in conflict with the side of the pressure ring plate, the roller is movably arranged at the end of the moving component away from the spring, and the moving component, spring and pressure ring plate are facing the detection end of the pressure sensor.

[0015] Based on this design, when the running belt is stretched or the driven roller moves toward the inside of the running belt, the spring pushes the moving assembly to always press the roller against the inner wall of the running belt. When the running belt is stretched or the driven roller moves toward the inside of the running belt, causing the running belt to become unbalanced, this unbalanced state can be detected in time through the change in pressure of the pressure sensor, so that balance correction can be made in time.

[0016] Preferably, the moving assembly includes a movable frame, a moving plate and multiple moving shafts, one end of the moving shaft is fixedly connected to one side of the moving plate, the other end of the moving shaft passes through the mounting seat and extends into the interior of the inner groove and is connected to the moving plate, the roller is movably arranged in the middle of the interior of the movable frame, and the spring is in contact with the middle of the side of the moving plate away from the moving shaft.

[0017] This design ensures that the movable frame never contacts the running belt, preventing interference. The axis of movement aligns with the belt's pressure on the driven roller. The spring faces the center of the shift plate.

[0018] Preferably, a limiting shaft penetrating the shift plate is fixedly provided in the middle of the inner groove, the limiting shaft and the shift plate are movably provided, and the spring and the pressure ring plate are both sleeved on the ring side of the limiting shaft.

[0019] In this design, the limit shaft prevents spring distortion, ensuring that the spring and pressure ring plate always transmit pressure along the limit shaft. The pressure ring plate facilitates evenly transmitting the pressure exerted on the spring to the pressure sensor.

[0020] Preferably, support assemblies for supporting the starting belt are provided above and below the mounting seat, and the support assemblies include two support plates symmetrically arranged on the mounting seat and a support shaft movably arranged inside the two support plates.

[0021] Based on this design, the support shaft supports the running belt, preventing the running belt from sinking into the ring groove due to long-term tension, which may cause the sunken part to be easily deformed.

[0022] Preferably, a connecting seat is fixedly provided on one side of the mounting seat, and the connecting seat is an L-shaped structure, with one end fixedly provided on the end side of the positioning shaft.

[0023] Based on this design, the connecting seat mounting seat is fixed on the positioning shaft.

[0024] Preferably, the position detection assembly also includes a fixing ring fixedly arranged on the side of the encoder, a buckle cover fixedly arranged on the side of the winding shaft adjacent to the encoder, and a mainspring between the fixing ring and the buckle cover, one end of the mainspring is fixedly connected to the outer wall of the fixing ring, and the other end thereof is fixedly connected to the inner wall of the buckle cover, so as to keep the measuring rope in a tensioned state.

[0025] Based on this design, the mainspring generates a deflection force on the buckle cover and the winding shaft through its own elastic properties, so that the winding shaft tightens the measuring rope, putting the measuring rope in a tensioned state.

[0026] Preferably, four shift axes are provided on the side of the shift plate.

[0027] Based on this design, the linear movement of the shift plate is facilitated.

[0028] Preferably, a slot is provided on the side of the encoder to limit the buckle cover.

[0029] Based on this design, the buckle cover can be easily rotated.

[0030] Preferably, the wiring shaft and the positioning shaft are movably connected.

[0031] Based on this design, the connection between the measuring rope and the wiring shaft is more stable.

[0032] The present invention has the following beneficial effects:

[0033] 1. In the present invention, the mounting base and positioning shaft are fixedly connected and perpendicular to each other, and the detection end of the pressure sensor faces the driven roller and the roller. This ensures that even if the driven roller shifts or the running belt shrinks or expands, the pressure detected by the pressure sensor is always the directional, fixed-point positive pressure of the running belt on the roller. This avoids large pressure sensor detection errors caused by shifting of the driven roller or positioning shaft, or changes in the direction of the combined pressure due to belt expansion or contraction. By detecting the directional positive pressure of the running belt on the side of the driven roller end, and changes in the positive pressure value, the pressure changes of the driven roller on the running belt can be more clearly and accurately reflected, significantly improving detection accuracy and playing a more active role in detecting whether the running belt is loose, allowing for timely correction, thereby avoiding safety hazards caused by unbalanced running of the running belt.

[0034] 2. The present invention can detect the offset distance between the driven roller and the ends of the positioning shaft. Using three-point positioning, the position of each wire shaft after adjustment is measured, thereby determining the position of each end of the positioning shaft. After the positioning shaft is adjusted using a screw to correct the treadmill balance, the position of each end of the positioning shaft is determined. The offset position of each end of the positioning shaft is compared with the initial position of each end of the positioning shaft to determine the offset amplitude. When the offset amplitude exceeds a set threshold range, it is considered that both sides of the treadmill are overstretched, significantly deteriorating the treadmill quality. When the threshold value of the offset amplitude difference between the two ends of the positioning shaft exceeds the range, it is considered that at least one side of the treadmill is overstretched, which can cause excessive stress and damage to the threads between the positioning shaft and the screw. Therefore, this design can promptly detect problems with both sides of the treadmill being overstretched, significantly deteriorating the treadmill quality, and can also promptly detect problems with at least one side of the treadmill being overstretched, preventing damage to the threads between the positioning shaft and the screw, thereby ensuring the safety of the treadmill. Based on the problems promptly detected by the detection structure, the treadmill can be replaced or repaired in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 This is a three-dimensional cross-sectional view of a large-scale health dynamic balance automatic correction running device of the present invention;

[0037] Figure 2 The invention provides a large-scale health dynamic balance automatic correction running device Figure 1 Enlarged view of part A;

[0038] Figure 3 A three-dimensional cross-sectional view of a tension detection assembly of a large-scale health dynamic balance automatic correction running device of the present invention;

[0039] Figure 4 This is a three-dimensional cross-sectional view of a large-scale health dynamic balance automatic correction running device with a position detection component structure of the present invention;

[0040] Figure 5 The invention provides a large-scale health dynamic balance automatic correction running device Figure 4 Enlarged view of part B;

[0041] Figure 6 This is a partial exploded view of the distance measurement component of a large-scale health dynamic balance automatic correction running device of the present invention;

[0042] Figure 7 A three-dimensional diagram of a line adjustment plate of a large-scale health dynamic balance automatic correction running device of the present invention;

[0043] Figure 8 A three-dimensional diagram of a buckle cover of a large-scale health dynamic balance automatic correction running device of the present invention;

[0044] Figure 9 A three-dimensional diagram of a driven roller of a large-scale health dynamic balance automatic correction running device of the present invention;

[0045] Figure 10 This is a three-dimensional diagram of a large-scale health dynamic balance automatic correction running device with a screw rod structure according to the present invention.

[0046] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0047] 1. Running belt; 2. Driven roller; 3. Positioning shaft; 4. Ring groove; 5. Mounting seat; 6. Pressure sensor; 7. Roller; 8. Distance measuring assembly; 81. Encoder; 82. Winding shaft; 83. Wire adjustment plate; 84. Measuring rope; 85. Limiting hole; 86. Limiting groove; 9. Wiring shaft; 10. Moving assembly; 101. Movable frame; 102. Shifting plate; 103. Shifting shaft; 11. Inner groove; 12. Pressure ring plate; 13. Spring; 14. Limiting shaft; 15. Support plate; 16. Support shaft; 17. Connecting seat; 18. Fixed ring; 19. Buckle cover; 20. Spring; 21. Slot; 22. Screw rod; 23. Adjusting mechanism. DETAILED DESCRIPTION

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0049] Example:

[0050] See also Figure 1-10 As shown, a large-scale health dynamic balance automatic correction running device includes a treadmill belt 1, a driven roller 2, and a positioning shaft 3 disposed inside a frame. It also includes an adjustment mechanism 23 and a detection mechanism disposed at the end of the frame. The detection mechanism includes a tension detection assembly for detecting the fixed-point pressure of the treadmill belt 1 on the end side of the driven roller 2, and a position detection assembly for detecting the degree of displacement of the end of the positioning shaft 3. The driven roller 2 is sleeved on the middle portion of the positioning shaft 3 and is movable with the positioning shaft 3. Two tension detection assemblies and two position detection assemblies are each provided; the two tension detection assemblies are symmetrically distributed around the entire positioning shaft 3, and the two position detection assemblies are symmetrically disposed around the entire treadmill frame. The adjustment mechanism 23 adjusts the position of the positioning shaft 3 by receiving signals from the detection mechanism.

[0051] In this design, a screw rod 22 is installed inside the end of the treadmill frame. The adjustment mechanism 23 drives the screw rod 22 to rotate in place. The positioning shaft 3 is connected to the ring side of the screw rod 22 through a thread. By rotating the screw rod 22, the installation position of the positioning shaft 3 on the screw rod 22 can be adjusted without rotating the positioning shaft 3 itself.

[0052] An annular groove 4 is provided at the end of the driven roller 2, and the tension detection assembly includes a mounting seat 5 fixedly arranged at the end of the positioning shaft 3, a pressure sensor 6 fixedly arranged at one end of the mounting seat 5, and a roller 7 movably arranged at the other end of the mounting seat 5. The mounting seat 5 is located inside the annular groove 4 and is movably arranged with the driven roller 2. The roller 7 is in conflict with the inner wall of the running belt 1 and is facing the detection end of the pressure sensor 6. The pressure sensor 6 is used to detect the positive pressure of the running belt 1 on the driven roller 2; in this design, the motor drives the running belt 1 to rotate through the active roller, and the running belt 1 drives the driven roller 2 to rotate. The active roller and the driven roller 2 are arranged in parallel, and the roller 7 and the driven roller 2 are arranged in parallel, and the central axis of the roller 7 is located on the plane formed by the central axes of the active roller and the driven roller 2, so that the directional positive pressure of the running belt 1 on the driven roller 2 can be detected. The orientation here is the direction facing the detection end of the pressure sensor 6.

[0053] To address the problem of large detection errors in pressure sensor 6 caused by changes in the direction of the combined pressure, this design employs a fixed connection between mounting base 5 and positioning shaft 3, with the detection end of pressure sensor 6 facing both driven roller 2 and roller 7. This ensures that even if driven roller 2 shifts or belt 1 contracts or expands, the pressure detected by pressure sensor 6 is always the positive pressure at the directional, fixed point of contact between belt 1 and roller 7. This prevents large detection errors caused by shifting of driven roller 2 or positioning shaft 3, or changes in the direction of the combined pressure due to belt 1 contraction or expansion. By detecting the directional positive pressure of belt 1 on the side of the driven roller 2, and the changes in the positive pressure, the pressure changes of driven roller 2 on belt 1 can be more clearly and accurately reflected, significantly improving detection accuracy and effectively detecting whether belt 1 is loose, allowing for timely correction and avoiding safety hazards caused by unbalanced operation of belt 1.

[0054] A wiring shaft 9 is provided at the center of the end of the positioning shaft 3. The position detection component includes three distance measuring components 8 arranged at the end of the positioning shaft 3 and equidistantly distributed between each other. The positioning shaft 3 is located at the center of the three distance measuring components 8. The distance measuring component 8 includes an encoder 81, a winding shaft 82 arranged at the output end of the encoder 81, a wire adjustment plate 83, and a measuring rope 84 in a tensioned state. The wire adjustment plate 83 is fixedly provided on one side of the encoder 81. A limiting hole 85 is provided at one end of the wire adjustment plate 83 for directional extension of the measuring rope 84. A limiting groove 86 is provided on the side of the winding shaft 82 for winding the measuring rope 84. One end of the measuring rope 84 is fixedly provided on the inner wall of the limiting groove 86. The other end of the measuring rope 84 passes through the limiting hole 85 and is fixedly connected to the side of the wiring shaft 9.

[0055] During long-term use, the treadmill 1 may shrink and expand to varying degrees due to inconsistent force. In this case, it is necessary to rotate the screw 22 to adjust the position of the positioning shaft 3, causing the positioning shaft 3 to deflect on the screw 22, allowing the driven roller 2 to firmly press against the treadmill 1 and correct the balance of the treadmill 1. However, if the shrinkage and expansion of the two sides of the treadmill 1 become significantly inconsistent, further correction of the treadmill 1 requires further deflection of the positioning shaft 3 on the screw 22. This can cause excessive pressure on the threads between the positioning shaft 3 and the screw 22, leading to damage. This can easily cause the positioning shaft 3 and the screw 22 to loosen, affecting safety and reducing the service life of the positioning shaft 3 and the screw 22. In this case, the treadmill 1 should be replaced. However, existing treadmills do not reflect the deflection of the positioning shaft 3 on the screw 22 during balance correction. Similarly, when the running belt 1 is overstretched during long-term use, the quality of the running belt 1 will be reduced. In order to avoid problems such as the running belt 1 cracking, the running belt 1 needs to be replaced. However, the existing treadmill cannot reflect the stretching range of the running belt 1 in the balance correction.

[0056] This design can detect the offset distances at both ends of the driven roller 2 and the positioning shaft 3. This design sets the initial position of the positioning shaft 3, a threshold for the offset amplitude at both ends of the positioning shaft 3, and a threshold for the offset amplitude difference at both ends of the positioning shaft 3. This design uses three-point positioning to measure the position of each wire shaft 9 after adjustment, thereby measuring the position of each end of the positioning shaft 3. After adjusting the positioning shaft 3 using the screw 22 to correct the balance of the running belt 1, the position of each end of the positioning shaft 3 is determined. The offset positions of the two ends of the positioning shaft 3 are compared with the initial positions of the two ends of the positioning shaft 3 to determine the offset amplitude at both ends of the positioning shaft 3. When the offset amplitude at both ends of the positioning shaft 3 exceeds the set threshold range for the offset amplitude at both ends of the positioning shaft 3, it is considered that both sides of the running belt 1 are overstretched, the quality of the running belt 1 has been significantly degraded, and the running belt 1 needs to be replaced. When the threshold for the offset amplitude difference at both ends of the positioning shaft 3 exceeds the range, it is considered that at least one side of the running belt 1 is overstretched. In this case, correcting the balance of the running belt 1 will cause excessive pressure on the threads between the positioning shaft 3 and the screw 22, resulting in damage. The offset amplitude at both ends of the positioning shaft 3 is compared to the initial position of the positioning shaft 3. The direction of the offset amplitude at both ends of the positioning shaft 3 is the radial direction of the initial position of the positioning shaft 3. If the radial offset amplitude at both ends of the positioning shaft 3 exceeds a threshold, it is considered that the threads between the positioning shaft 3 and the screw rod 22 will be damaged due to excessive pressure.

[0057] Based on the three-point positioning of this design, the radius of the winding shaft 82 is a fixed value. The winding shaft 82 rotates accordingly during the pulling or reeling process of the measuring rope 84, so that the measuring rope 84 is always taut. After the connecting shaft 9 moves, the measuring rope 84 in each distance measuring component 8 is pulled out or reeled on the winding shaft 82. The winding shaft 82 rotates accordingly when the measuring rope 84 is pulled out or reeled. During the rotation of the winding shaft 82, the encoder 81 measures the extension or contraction length of the corresponding measuring rope 84 by measuring the rotation angle of the winding shaft 82. By comparing the initial extension length of the corresponding measuring rope 84, the position of the connecting shaft 9 after movement can be determined, and then the position of the end of the positioning shaft 3 after the displacement can be determined. The measuring rope 84 of this design is lightweight and highly tensile-resistant, which can avoid the influence of its own weight and deformation on the detection results. The measurement accuracy of the end position of the positioning shaft 3 is higher, which is conducive to the precise positioning of the end of the positioning shaft 3.

[0058] Among them, an inner groove 11 is opened inside the mounting seat 5, and the tension detection component also includes a moving component 10 movably arranged inside the mounting seat 5 near one end of the roller 7, a pressure ring plate 12 and a spring 13 arranged in the inner groove 11, one end of the spring 13 is in conflict with one end of the moving component 10, and the other end of the spring 13 is in conflict with the side of the pressure ring plate 12, and the roller 7 is movably arranged at the end of the moving component 10 away from the spring 13, and the moving component 10, the spring 13 and the pressure ring plate 12 are facing the detection end of the pressure sensor 6.

[0059] Based on this design, when the treadmill 1 presses against the driven roller 2, it exerts pressure on roller 7. This pressure, in turn, applies positive pressure to spring 13 via movable assembly 10. Spring 13, in turn, applies positive pressure to pressure sensor 6 via pressure ring plate 12. This process enables pressure sensor 6 to accurately detect the positive pressure exerted by the treadmill 1 on the driven roller 2. When the treadmill 1 stretches or the driven roller 2 moves inward, spring 13 pushes movable assembly 10 to keep roller 7 pressed against the inner wall of the treadmill 1. This causes the treadmill 1 to become unbalanced due to stretching or inward movement of the driven roller 2. This imbalance is promptly detected by the pressure change in pressure sensor 6, enabling timely balancing corrections.

[0060] Among them, the moving component 10 includes a movable frame 101, a moving plate 102 and multiple moving shafts 103. One end of the moving shaft 103 is fixedly connected to one side of the moving plate 102. The other end of the moving shaft 103 passes through the mounting seat 5 and extends into the interior of the inner groove 11 and is connected to the moving plate 102. The roller 7 is movably arranged in the middle of the interior of the movable frame 101, and the spring 13 is in contact with the middle of the side of the moving plate 102 away from the moving shaft 103.

[0061] Based on this design, the movable frame 101 never contacts the running belt 1, thus avoiding interference. The moving direction of the shift shaft 103 is consistent with the pressure direction of the running belt 1 on the driven roller 2. The spring 13 is directly opposite the middle of the shift plate 102.

[0062] Among them, a limiting shaft 14 that passes through the shift plate 102 is fixedly set in the middle of the inner groove 11, the limiting shaft 14 and the shift plate 102 are movably set, and the spring 13 and the pressure ring plate 12 are both sleeved on the ring side of the limiting shaft 14.

[0063] Based on this design, the limit shaft 14 is used to prevent the spring 13 from twisting, so that the spring 13 and the pressure ring plate 12 always transmit pressure along the direction of the limit shaft 14. The pressure ring plate 12 facilitates uniform transmission of the pressure exerted on the spring 13 to the pressure sensor 6.

[0064] Among them, support components for supporting the starting belt 1 are provided above and below the mounting seat 5 , and the support components include two support plates 15 symmetrically arranged on the mounting seat 5 and a support shaft 16 movably arranged inside the two support plates 15 .

[0065] Based on this design, the support shaft 16 supports the treadmill 1, thereby preventing the treadmill 1 from being easily deformed due to being sunken into the annular groove 4 due to long-term tension.

[0066] A connecting seat 17 is fixedly provided on one side of the mounting seat 5 . The connecting seat 17 is an L-shaped structure, and one end of the connecting seat 17 is fixedly provided on the end side of the positioning shaft 3 .

[0067] Based on this design, the connecting seat 17 fixes the mounting seat 5 on the positioning shaft 3.

[0068] Among them, the position detection component also includes a fixing ring 18 fixedly arranged on the side of the encoder 81, a buckle cover 19 fixedly arranged on the side of the winding shaft 82 adjacent to the encoder 81, and a spring 20 between the fixing ring 18 and the buckle cover 19. One end of the spring 20 is fixedly connected to the outer wall of the fixing ring 18, and the other end is fixedly connected to the inner wall of the buckle cover 19, which is used to keep the measuring rope 84 in a tensioned state.

[0069] Based on this design, the mainspring 20 generates a deflection force on the buckle cover 19 and the winding shaft 82 through its own elastic properties, so that the winding shaft 82 tightens the measuring rope 84, so that the measuring rope 84 is in a tensioned state.

[0070] Four shift shafts 103 are provided on the side of the shift plate 102 .

[0071] Based on this design, the linear movement of the moving plate 102 is facilitated.

[0072] The side of the encoder 81 is provided with a slot 21 for limiting the buckle cover 19.

[0073] Based on this design, the buckle cover 19 can be rotated conveniently.

[0074] The connecting shaft 9 and the positioning shaft 3 are movably connected.

[0075] Based on this design, the connection between the measuring rope 84 and the wiring shaft 9 is more stable.

[0076] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A large-scale health dynamic balance automatic correction running device, comprising a running belt (1) arranged on the inner side of a frame, a driven roller (2), and a positioning shaft (3), characterized in that: The machine also includes an adjustment mechanism (23) and a detection mechanism arranged at the end side of the frame. The detection mechanism includes a tension detection component for detecting the fixed-point pressure of the running belt (1) on the end side of the driven roller (2), and a position detection component for detecting the degree of deviation of the end of the positioning shaft (3). The driven roller (2) is sleeved on the middle part of the positioning shaft (3) and is movably arranged with the positioning shaft (3). An annular groove (4) is provided at the end of the driven roller (2); the tension detection assembly comprises a mounting seat (5) arranged at the end of the positioning shaft (3), a pressure sensor (6) arranged at one end of the mounting seat (5), and a roller (7) movably arranged at the other end of the mounting seat (5); the mounting seat (5) is located inside the annular groove (4) and is movably arranged with the driven roller (2); the roller (7) contacts the inner wall of the running belt (1) and faces the detection end of the pressure sensor (6); the pressure sensor (6) is used to detect the positive pressure of the running belt (1) on the driven roller (2); A wiring shaft (9) is provided at the center of the end of the positioning shaft (3); the position detection component comprises three distance measuring components (8) arranged at the end of the positioning shaft (3) and distributed equidistantly between each other; the positioning shaft (3) is located at the center of the three distance measuring components (8); the distance measuring component (8) comprises an encoder (81), a winding shaft (82) arranged at the output end of the encoder (81), a wire adjustment plate (83), and a measuring rope (84); the wire adjustment plate (83) is arranged on one side of the encoder (81); a limiting hole (85) is provided inside one end of the wire adjustment plate (83); a limiting groove (86) for winding the measuring rope (84) is provided on the side of the winding shaft (82); one end of the measuring rope (84) is fixedly arranged on the inner wall of the limiting groove (86); the other end of the measuring rope (84) passes through the limiting hole (85) and is fixedly connected to the side of the wiring shaft (9).

2. The running device for health and dynamic balance automatic correction according to claim 1, characterized in that: An inner groove (11) is provided inside the mounting seat (5), and the tension detection component further comprises a moving component (10) movably arranged inside one end of the mounting seat (5) adjacent to the roller (7), a pressure ring plate (12) and a spring (13) arranged in the inner groove (11), one end of the spring (13) abuts against one end of the moving component (10), and the other end of the spring (13) abuts against the side of the pressure ring plate (12), the roller (7) is movably arranged at one end of the moving component (10) away from the spring (13), and the moving component (10), the spring (13) and the pressure ring plate (12) face the detection end of the pressure sensor (6).

3. The running device for health and dynamic balance automatic correction according to claim 2, characterized in that: The moving assembly (10) comprises a movable frame (101), a moving plate (102) and a plurality of moving shafts (103); one end of the moving shaft (103) is fixedly connected to one side of the moving plate (102); the other end of the moving shaft (103) passes through the mounting seat (5) and extends into the interior of the inner groove (11) and is connected to the moving plate (102); the roller (7) is movably arranged in the middle of the interior of the movable frame (101); and the spring (13) abuts against the middle of the side of the moving plate (102) away from the moving shaft (103).

4. The running device for health and dynamic balance automatic correction according to claim 3, characterized in that: A limiting shaft (14) penetrating the shift plate (102) is fixedly provided in the middle of the inner groove (11); the limiting shaft (14) and the shift plate (102) are movably provided; and the spring (13) and the pressure ring plate (12) are both sleeved on the ring side of the limiting shaft (14).

5. The running device for health and dynamic balance automatic correction according to claim 4, characterized in that: Support assemblies for supporting the starting belt (1) are provided above and below the mounting seat (5), and the support assemblies include two support plates (15) symmetrically arranged on the mounting seat (5) and a support shaft (16) movably arranged inside the two support plates (15).

6. The running device for health and dynamic balance automatic correction according to claim 5, characterized in that: A connecting seat (17) is fixedly provided on one side of the mounting seat (5); the connecting seat (17) is an L-shaped structure, and one end is fixedly provided on the end side of the positioning shaft (3).

7. The running device for health and dynamic balance automatic correction according to claim 6, characterized in that: The position detection assembly further comprises a fixing ring (18) fixedly arranged on the side of the encoder (81), a buckle cover (19) fixedly arranged on the side of the winding shaft (82) adjacent to the encoder (81), and a spring (20) between the fixing ring (18) and the buckle cover (19), one end of the spring (20) being fixedly connected to the outer wall of the fixing ring (18), and the other end of the spring (20) being fixedly connected to the inner wall of the buckle cover (19), for keeping the measuring rope (84) in a tensioned state.

8. The running device for health and dynamic balance automatic correction according to claim 7, characterized in that: Four shift shafts (103) are provided on the side of the shift plate (102).

9. The running device for health and dynamic balance automatic correction according to claim 8, characterized in that: A slot (21) for limiting the buckle cover (19) is provided on the side of the encoder (81).

10. The running device for health and dynamic balance automatic correction according to claim 9, characterized in that: The wiring shaft (9) and the positioning shaft (3) are movably connected.

Images