Height-adjustable treadmill and control method thereof

Abstract

The invention relates to a height-adjustable treadmill and a control method thereof, and relates to the technical field of treadmills, the height-adjustable treadmill comprises a support rod and a lifting rod; the supporting rod is provided with a fixing structure used for fixing the lifting rod. The fixing structure comprises a connecting part and a fixing part. The connecting part comprises a connecting bolt, a connecting cover, a connecting spring, a connecting gasket and a connecting block; the connecting gasket is connected with one side, away from the inner wall of the connecting cover, of the connecting spring; the fixing part comprises a fixing hoop and a fixing support lug connected with the fixing hoop, a connecting groove used for containing the connecting cover is formed in the side, close to the connecting bolt, of the fixing support lug, a threaded groove used for being matched with the connecting bolt for threaded connection is formed in the fixing support lug, and the fixing support lug is used for driving the fixing hoop to conduct clamping so as to fix the lifting rod. A rotating groove used for containing the connecting block and conducting rotating guiding is formed in the fixed supporting lug, and the rotating groove communicates with the connecting groove. The running machine has the effect of improving the safety of the running machine.

Description

Technical Field

[0001] The present invention relates to the technical field of treadmills, and more particularly to a treadmill with adjustable height and its control method. Background Art

[0002] At present, the treadmill is a kind of fitness equipment widely used in families and commercial gyms, mainly used for aerobic exercise, especially for the exercise of cardiopulmonary function.

[0003] In the prior art, the treadmill includes handrails, a running belt, a transmission system and a display terminal. Currently, the display terminal is set on the handrail with a fixed height. The running belt is for the user to run on, and it is convenient to adjust the display terminal. The handrail is used to support the display terminal and for the user to hold to keep balance.

[0004] In view of the above related technologies, when there are users with different heights, it is not easy for the handrail to match with users of different heights to keep the balance of the users, and it is not easy to operate the display terminal on the handrail to start, stop or adjust the speed of the treadmill, resulting in potential safety hazards such as bumps or falls when users of different heights use the treadmill with a fixed height. Summary of the Invention

[0005] In order to improve the safety of the treadmill, the present invention provides a treadmill with adjustable height and its control method.

[0006] In a first aspect, the present invention provides a treadmill with adjustable height, adopting the following technical solution: A treadmill with adjustable height includes a support rod, and further includes a lifting rod connected to the side of the support rod away from the ground and used for adjusting the height. A sliding cavity for the lifting rod to slide is opened on the support rod; A fixing structure for fixing the lifting rod is arranged on the support rod. The fixing structure is located at the orifice of the sliding cavity. The fixing structure includes a connecting part and a fixing part; The connecting part includes a connecting bolt, a connecting cover for strengthening the connection and fixation of the connecting bolt, a connecting spring connected to the inner wall of the connecting cover away from the fixing part, a connecting gasket located between the connecting spring and the connecting bolt, and a connecting block for fixing the connecting cover; The connecting gasket is connected to the inner wall side of the connecting spring away from the connecting cover, and the connecting spring is used to drive the connecting gasket to press tightly towards the connecting bolt direction; The fixing part includes a fixing hoop and fixing lugs connected to the fixing hoop. A connection groove for placing the connection cover is formed on one side of the fixing lug close to the connection bolt. A threaded groove for threaded connection with the connection bolt is formed on the fixing lug. The fixing lug is used to drive the fixing hoop to clamp and fix the lifting rod. A rotating groove for placing the connection block and guiding rotation is formed on the fixing lug, and the rotating groove communicates with the connection groove.

[0007] By adopting the above technical solution, the height of the treadmill can be adjusted by installing a lifting rod in the cavity of the support rod. Then, the bolt tightening and fixing structure outputs a pressing force to the support rod, so as to fix the lifting rod located in the cavity of the support rod. A connection cover is installed on the bolt, which can reduce the probability of the bolt rotating and falling off. A spring is arranged on the connection cover, which can continuously fix the bolt with tightening errors and generate a reaction force on the bolt to strengthen the fixing effect on the bolt, so as to adjust the height of the handrail on the treadmill and improve the safety of the treadmill.

[0008] Optionally, an elastic clamping member for adjusting the distance between the lifting rod and the support rod is arranged on the lifting rod. An installation hole for installing the elastic clamping member is formed on the lifting rod. A clamping hole for clamping and fixing the elastic clamping member is formed on one side of the support rod close to the installation hole. The clamping hole is located in the height direction of the support rod and at least two clamping holes are formed; A guide plate for installing the elastic clamping member is arranged on one side of the lifting rod close to the installation hole along the height direction. A guide groove for the guide plate to slide is formed on one side of the lifting rod close to the guide plate.

[0009] By adopting the above technical solution, the elastic clamping member installed in the installation hole can be elastically clamped and fixed in several clamping holes on the support rod, so as to pre-fix the lifting rod corresponding to different heights while adjusting the height of the treadmill. The guide plate on the lifting rod can be installed to guide and slide in the guide groove, and the installation hole is located on the guide plate, which is convenient for the installation of the elastic clamping member.

[0010] Optionally, the elastic clamping member includes a fixing protrusion, a connection column connected to one side of the fixing protrusion away from the guide plate, a limiting plate connected to one side of the connection column away from the fixing protrusion, a fixing spring connected to one side of the limiting plate away from the connection column, and a fixing pad connected to one side of the fixing spring away from the limiting plate; The limiting plate is used to limit the fixed protrusion and is mutually limited with the mounting hole. The fixed spring is used to drive the fixed protrusion to slide. The side of the fixed cushion block away from the fixed spring abuts against the inner wall of the rotary sleeve away from the mounting hole. On the side of the guide plate away from the support rod, there is a rotary sleeve for installing the fixed protrusion, the connecting column, the limiting plate, the fixed spring and the fixed cushion block. An internal cavity for the limiting plate to slide is formed on the rotary sleeve. The side of the fixed cushion block away from the fixed spring abuts against the inner wall of the rotary sleeve away from the mounting hole. The side of the lifting rod close to the rotary sleeve is threadedly connected to the rotary sleeve.

[0011] By adopting the above technical solution, the elastic clamping member is threadedly connected to the guide plate through the fixed sleeve and is allowed to slide. The spring in the elastic clamping member causes the fixed protrusion to slide towards the mounting hole. The limiting member in the elastic clamping member can limit the sliding distance of the fixed protrusion. The fixed protrusion in the elastic clamping member can slide and expand and contract while the lifting rod is adjusted in height. When the mounting hole corresponds to the clamping hole, the spring drives the fixed protrusion to slide and be clamped on the clamping hole, so as to pre-fix the lifting rod. And by pressing the fixed protrusion, the lifting rod can continue to be adjusted in height.

[0012] Optionally, a rubber strip is sleeved on the support rod. Rubber protrusions are arranged on the side of the rubber strip that fits the fixed protrusion, and the rubber protrusions abut against the fixed protrusion. One end of the rubber strip is provided with a connecting band, and the other end of the rubber strip is provided with a fixed box for the connecting band to be inserted and fixed. The fixed box includes a shell fixedly connected to the rubber strip and a meshing gear meshing with the connecting band. A meshing hole for the meshing gear to pass through is formed on the shell. A meshing shaft for driving the connecting band to rotate and mesh is fixedly connected to the meshing gear. A rotating hole for the meshing shaft to rotate is formed on the shell. A knob is fixed on the side of the meshing shaft close to the ground. A locking rod for pressing the meshing shaft to rotate is in threaded fit on the side of the shell away from the connecting band.

[0013] By adopting the above technical solution, by rotating the knob, the meshing shaft in the meshing hole can be driven to rotate, and the inserted connecting band can be driven to move to tighten the rubber strip, so that the rubber strip can be fixed on the lifting rod and the rubber protrusions can abut against the fixed protrusions, thereby reducing the influence of pain caused by manually pressing the fixed protrusions.

[0014] Optionally, a handrail is provided on the lifting rod. A clamping column for clamping and fixing the lifting rod is provided on one side of the handrail close to the lifting rod. A clamping groove for the clamping column to be clamped and fixed is formed on one side of the lifting rod close to the clamping column. The clamping groove is located in the height direction of the lifting rod and at least two clamping grooves are provided. A clamping magnet is provided on the lifting rod. A floating magnet for controlling the clamping magnet to float is provided on the lifting rod. A sliding groove for the clamping magnet to slide is formed on one side of the lifting rod away from the ground. A locking groove for locking the floating magnet is formed on one side of the lifting rod close to the ground. The clamping groove, the locking groove and the sliding groove communicate with each other. An adsorption magnet for attracting the clamping magnet is provided on one side of the clamping column close to the clamping magnet. A locking cavity for locking the adsorption magnet is formed on the clamping column. The adsorption magnet is used for adsorbing and abutting against the clamping magnet.

[0015] By adopting the above technical solution, when the clamping column is installed in the clamping groove, the clamping magnet in the clamping groove is attracted by the adsorption magnet and abuts against each other to pre-fix the clamping column. The sliding groove can limit the clamping magnet and reduce the influence of the dropping of the clamping magnet when the floating magnet in the clamping groove does not produce a floating effect on the clamping magnet. Multiple clamping grooves are formed on the lifting rod to facilitate the selection of different handrail heights when the height of the treadmill is fixed.

[0016] Optionally, a fixing sleeve for fixing the handrail is sleeved on the lifting rod. A connecting rod is provided between the clamping column and the handrail. A clamping groove for clamping and fixing the connecting rod is formed on one side of the fixing sleeve close to the ground. When the connecting rod falls into the clamping groove, the side of the fixing sleeve close to the lifting rod is limited and fixed with the side of the clamping column close to the connecting column.

[0017] By adopting the above technical solution, when the clamping column is pre-fixed in the clamping groove, the fixing sleeve is pressed down so that the clamping groove abuts against the connecting column and limits and fixes the clamping column, thereby being able to fix the handrail.

[0018] In a second aspect, the present application provides a control method for a treadmill with adjustable height, adopting the following technical solution: A control method for a treadmill with adjustable height includes: Obtaining image detection information on the treadmill and height detection information of the treadmill; Determining that the treadmill does not start or determining the human height information according to the image detection information and the preset human characteristics; Determine to output a preset prompt message or determine the adjusted height information according to the comparison between the human body height information and the preset body posture situation; Determine to complete the adjustment or determine the height deviation value according to the consistency between the adjusted height information and the height detection information; Determine the adjustment position according to the height deviation value and the height detection information, and give a prompt at the adjustment position.

[0019] Optionally, after determining the human body height information, the control method of the treadmill further includes: Determine to start the treadmill or output a preset prompt message according to the comparison between the image detection information and the preset reference image information, and obtain the weight detection information on the treadmill; Determine the foreign object position according to the image detection information; Obtain the contact distance between the treadmill and the surroundings according to the preset treadmill placement position; Determine the foreign object state and the foreign object size information corresponding to the foreign object state according to the image detection information; Determine the minimum foreign object distance according to the foreign object size information and the foreign object state; Determine the movement time according to the foreign object state; Select the angle corresponding to the contact distance greater than the minimum foreign object distance as the discharge angle according to the comparison between the contact distance and the minimum foreign object distance; Determine the running direction according to the discharge angle; Determine the angle vector deviation value according to the discharge angle and the placement angle corresponding to the preset treadmill placement position, and control the preset rotating device to lift and rotate the treadmill according to the angle vector deviation value; After the treadmill is lifted and rotated, control the treadmill to run according to the running direction and the movement time to discharge the foreign object.

[0020] Optionally, after determining the adjusted height information, the control method of the treadmill further includes: Determine the running of the treadmill or determine the number of people according to the comparison between the adjusted height information and the preset reference height information; If the number of people is one, output a preset prompt message; If the number of people is two or more, determine the real-time face orientation of the face corresponding to the people according to the image detection information; Determine to output a preset prompt message or determine the person distance corresponding to the number of people according to the real-time face orientation and the preset reference face orientation; Determine to output a preset prompt message or control the running of the treadmill according to the comparison between the person distance and the preset reference safety distance.

[0021] Optionally, the specific steps after controlling the running of the treadmill are further included: Obtain the running speed of the treadmill; Determine the reference motion amplitude according to the running speed; Determine the human body motion amplitude according to the human body height information and the image detection information; Determine whether the treadmill continues to output or determine the falling direction according to the comparison between the human body motion amplitude and the reference motion amplitude; Determine the head position according to the falling direction, the human body height information and the preset placement position of the treadmill; Determine the ejection distance according to the head position and the preset placement position of the treadmill; Determine the corresponding real-time inflation amount based on the ejection distance; Control the preset airbag device to inflate according to the real-time inflation amount and the falling direction; Determine the falling angle according to the real-time motion amplitude; Determine whether the treadmill continues to run or control the preset airbag device to eject according to the comparison between the falling angle and the preset reference falling angle.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. By installing a lifting rod in the cavity of the support rod, the height of the treadmill can be adjusted. Then, through the bolt tightening and fixing structure, the pressing force output by the support rod is used to fix the lifting rod located in the cavity of the support rod. A connecting cover is installed on the bolt, which can reduce the probability of the bolt falling off and rotating. A spring is provided on the connecting cover to continuously fix the bolt with tightening errors and generate a reaction force on the bolt to strengthen the fixing effect of the bolt, so that the safety of the treadmill can be improved while adjusting the height of the treadmill; 2. The elastic clamping parts installed in the installation holes can be elastically clamped and fixed in several clamping holes on the support rod, so that while adjusting the height of the treadmill, a pre-fixing effect for different height gears of the lifting rod can be achieved. The guide plate on the lifting rod can be installed to guide and slide in the guide groove, and the installation holes are located on the guide plate, which can facilitate the installation of the elastic clamping parts; 3. The elastic clamping parts are threadedly connected to the guide plate through the fixing sleeve and are provided for the elastic clamping parts to slide. The spring in the elastic clamping parts makes the fixing protrusion slide in the direction of the installation hole. The limiting parts in the elastic clamping parts can limit the sliding distance of the fixing protrusion. The fixing protrusion in the elastic clamping parts can slide and expand while the height of the lifting rod is adjusted. When the installation hole corresponds to the clamping hole, the spring drives the fixing protrusion to slide and be clamped on the clamping hole, so as to pre-fix the lifting rod. And by pressing the fixing protrusion, the height of the lifting rod can continue to be adjusted. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a treadmill with adjustable height according to an embodiment of the present invention; Figure 2 It is an exploded structural schematic diagram of the lifting rod, guide plate, fixing structure, elastic clamping member and fixing box according to an embodiment of the present invention; Figure 1 ; Figure 3 It is an exploded structural schematic diagram of the lifting rod, guide plate, fixing structure, elastic clamping member and fixing box; Figure 2 ; Figure 4 It is Figure 2 a partial enlarged view of part A in Figure 5 It is Figure 2 a partial enlarged view of part B in Figure 6 It is Figure 2 a partial enlarged view of part C in Figure 7 It is Figure 3 a partial enlarged view of part D in Figure 8 It is Figure 2 a partial enlarged view of part E in Figure 9 It is a partial enlarged cross-sectional view of the lifting rod, handrail, clamping column and clamping groove according to an embodiment of the present invention.

[0024] The names of the parts referred to by each numerical label in the above drawings are as follows: 1, treadmill body; 2, support rod; 3, display device; 4, lifting rod; 5, sliding cavity; 6, fixing structure; 7, connecting part; 8, fixing part; 9, fixing hoop; 10, fixing support ear; 11, connecting bolt; 12, connecting cover; 13, connecting spring; 14, connecting gasket; 15, connecting block; 16, threaded groove; 17, connecting groove; 18, rotating groove; 20, mounting hole; 21, clamping hole; 22, guide plate; 23, guide groove; 24, fixing protrusion; 25, connecting column; 26, limiting plate; 27, fixing spring; 28, fixing pad; 29, rubber strip; 30, rubber protrusion; 31, connecting band; 33, housing; 34, meshing gear; 35, internal teeth; 37, meshing shaft; 38, rotating hole; 39, meshing through hole; 40, knob; 41, locking rod; 42, handrail; 43, clamping column; 44, clamping groove; 45, clamping magnet; 46, sliding groove; 47, floating magnet; 48, locking groove; 49, adsorption magnet; 50, locking cavity; 51, clamping protrusion; 52, inclined surface; 53, fixing sleeve; 54, connecting rod; 55, clamping groove; 56, rotating sleeve; 57, guide groove; 58, guide protrusion. Detailed implementation manners

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Referring to Figure 1 and Figure 2 , an embodiment of the present application discloses a treadmill with adjustable height, which includes a treadmill body 1 and a support rod 2 connected to the side of the treadmill body 1 away from the ground. There are two support rods 2 and they are symmetrically installed on both sides of the treadmill body 1. A lifting rod 4 is installed on the side of the support rod 2 away from the treadmill body 1. The side of the lifting rod 4 away from the support rod 2 is connected to a display device 3. The lifting rod 4 is used to adjust the height of the display device 3. The support rod 2 is provided with a sliding cavity 5 for the lifting rod 4 to slide along the height direction. The lifting rod 4 slides in the sliding cavity 5 and the number of the lifting rods 4 corresponds to that of the support rods 2 one by one. Thus, the height of the display device 3 can be adjusted by the sliding of the lifting rod 4, which is convenient for the user to observe or adjust the speed of the treadmill. In this embodiment, the display device 3 can be a touchable liquid crystal display screen.

[0027] Referring to Figure 1 and Figure 2 , a fixing structure 6 for fixing the lifting rod 4 is sleeved on the support rod 2, so that the lifting rod 4 after adjusting the height can be fixed, and further the movement of the display device 3 is prevented from affecting the user's observation of the display device 3. The fixing structure 6 is located at the orifice of the sliding cavity 5, which is convenient for the fixing structure 6 to press the support rod 2 to fix the lifting rod 4.

[0028] Referring to Figure 3 and Figure 4, the fixing structure 6 includes a connecting part 7 and a fixing part 8. The fixing part 8 includes a fixing hoop 9 and fixing lugs 10. The inner side wall of the fixing hoop 9 abuts against the support rod 2. The fixing hoop 9 is U-shaped and has fixing lugs 10 connected to both ends. The connecting part 7 includes a connecting bolt 11, a connecting cover 12, a connecting spring 13, a connecting gasket 14 and a connecting block 15. Thread grooves 16 for threaded connection of the connecting bolt 11 are formed on the fixing lugs 10. The connecting cover 12 is used to strengthen the connection and fixation of the connecting bolt 11. The connecting cover 12 covers the connecting bolt 11, so that the connecting bolt 11 is not easily detached. A connecting groove 17 is formed on one side of the fixing lug 10 close to the connecting bolt 11. The connecting groove 17 and the thread groove 16 are coaxial. The connecting groove 17 is used for placing the connecting cover 12 to fix the connecting bolt 11, so that the connecting bolt 11 is not easily detached. The connecting block 15 is located on the outer side wall of the connecting cover 12 and is used for fixing the connecting block 15. In this embodiment, the number of connecting blocks 15 is two. Rotating grooves 18 for placing the connecting blocks 15 are formed on the fixing lugs 10. When the connecting blocks 15 are installed in the rotating grooves 18, they rotate to fix the connecting cover 12. The rotating grooves 18 communicate with the connecting grooves 17. In this embodiment, the cross-sectional area of the rotating groove 18 is L-shaped, and the number of rotating grooves 18 corresponds to the number of connecting blocks 15 one by one.

[0029] Refer to Figure 4 , a connecting gasket 14 is welded to one side of the connecting spring 13 close to the connecting bolt 11. The connecting gasket 14 is used to reduce the friction between the connecting spring 13 and the connecting bolt 11 to improve the service life of the connecting spring 13. When the connecting bolt 11 is connected to the thread groove 16, it can drive the fixing hoop 9 to clamp the support rod 2, so as to fix the lifting rod 4. The connecting spring 13 is located between the connecting cover 12 and the connecting gasket 14 and is connected to the inner wall of the connecting cover 12 far from the fixing part 8. The connecting spring 13 is used to drive the connecting gasket 14 to press tightly towards the connecting bolt 11.

[0030] Refer to Figure 2 And Figure 5The lifting rod 4 is of a hollow structure, and an elastic clamping member 19 is installed on the lifting rod 4. The elastic clamping member 19 is used to adjust the distance from the support rod 2, so as to be able to adjust the height of the treadmill. The lifting rod 4 is provided with an installation hole 20 for installing the elastic clamping member 19, and the installation hole 20 can allow the elastic clamping member 19 to slide. A clamping hole 21 is provided on one side of the support rod 2 close to the installation hole 20. The clamping hole 21 is used for the elastic clamping member 19 to be clamped and fixed. The clamping hole 21 is located on the support rod 2 in the height direction and at least two clamping holes 21 are provided. When the height of the treadmill is adjusted, the height is adjusted through the lifting rod 4. When the clamping hole 21 corresponds to the installation hole 20, the elastic clamping member 19 is clamped and fixed in the clamping hole 21 to fix the lifting rod 4 on the support rod 2. And when it is necessary to continue to adjust the height of the treadmill, the elastic clamping member 19 is pressed to withdraw from the clamping hole 21 so that the lifting rod 4 can slide, so as to facilitate subsequent height adjustment.

[0031] Refer to Figure 2 And Figure 3 On one side of the lifting rod 4 close to the installation hole 20 in the height direction, a guide plate 22 is provided. The guide plate 22 is used to facilitate the installation of the elastic clamping member 19. A guide groove 23 for the guide plate 22 to slide along the height direction of the lifting rod 4 is provided on one side of the lifting rod 4 close to the guide plate 22. A rotating sleeve 56 for placing the elastic clamping member 19 is installed on one side of the guide plate 22 close to the lifting rod 4. The rotating sleeve 56 is threadedly connected to a groove with threads on the guide plate 22.

[0032] Refer to Figure 2 And Figure 5 On both sides of the guide plate 22 abutting against the guide groove 23, guide protrusions 58 are provided. The guide protrusions 58 are used to fix the guide plate 22 and slide on the guide groove 23. Guide grooves 57 for the guide protrusions 58 to slide are provided on both sides of the guide groove 23 close to the guide plate 22. The guide grooves 57 and the guide protrusions 58 are in mutual abutment, so that the guide plate 22 can slide and be fixed on the guide groove 23, thereby facilitating the installation of the elastic clamping member 19.

[0033] Refer to Figure 5, the elastic clamping member 19 includes a fixing protrusion 24, a connecting column 25, a limiting plate 26, a fixing spring 27 and a fixing cushion block 28. The fixing protrusion 24 is located in the mounting hole 20, and the protruding part corresponding to the fixing protrusion 24 faces the guide plate 22. The connecting column 25 is connected to the side of the fixing protrusion 24 away from the guide plate 22. The connecting column 25 is used to guide the fixing protrusion 24 in the mounting hole 20, so that the fixing protrusion 24 is not easily displaced. The limiting plate 26 is connected to the side of the connecting column 25 away from the fixing protrusion 24. The limiting plate 26 and the mounting hole 20 limit each other to limit the sliding distance of the fixing protrusion 24. The fixing spring 27 is connected to the side of the limiting plate 26 away from the connecting column 25. The fixing spring 27 is used to drive the fixing protrusion 24 to slide away from the lifting rod 4 so as to be clamped and fixed in the clamping hole 21, thereby pre-fixing the lifting rod 4 on the support rod 2. The side of the fixing spring 27 away from the limiting plate 26 is connected to the fixing cushion block 28. The fixing cushion block 28 is used to reduce the friction generated by the fixing spring 27 during the installation of the rotating sleeve 56 to improve the service life of the fixing spring 27. The fixing cushion block 28 is located between the fixing spring 27 and the rotating sleeve 56, and the side of the fixing cushion block 28 away from the fixing spring 27 abuts against the inner wall of the rotating sleeve 56 close to the guide plate 22.

[0034] Refer to Figure 3 And Figure 6 , a rubber strip 29 for reducing the pain caused by manually pressing the fixing protrusion 24 is sleeved on the support rod 2. Rubber protrusions 30 for fitting with the fixing protrusion 24 are arranged on the rubber strip 29. The rubber protrusions 30 are used to reduce the pain caused by manually pressing the fixing protrusion 24 and are located in the middle part of the rubber strip 29. One end of the rubber strip 29 is connected with a connecting band 31. The end of the rubber strip 29 away from the connecting band 31 is connected with a fixing box for inserting and fixing the connecting band 31, so that the rubber strip 29 can be fixed by the fixing box and the connecting band 31, and further the pain caused by manually pressing the fixing protrusion 24 can be reduced.

[0035] Refer to Figure 1 , Figure 6 And Figure 7, the fixed box includes a housing 33 and a meshing gear 34. The housing 33 is connected to the end of the rubber strip 29 away from the connecting belt 31. Along the height direction, the housing 33 is provided with a meshing gear 34 for meshing with the internal teeth 35 on the connecting belt 31. The meshing gear 34 is used to drive the connecting belt 31 to tighten the rubber strip 29 for fixing the rubber strip 29. A meshing shaft 37 for driving the connecting belt 31 to rotate and mesh is fixedly connected to the meshing gear 34. A rotation hole 38 for the meshing shaft 37 to rotate is provided on the housing 33, and the rotation hole 38 penetrates the housing 33 along the height direction. A meshing through hole 39 for the connecting belt 31 to pass through is provided on the housing 33. The meshing through hole 39 penetrates the housing 33 and communicates with the rotation hole 38, facilitating the passing through of the connecting belt 31 and meshing with the meshing gear 34.

[0036] Refer to Figure 7 , a knob 40 is fixedly installed on the side of the meshing shaft 37 close to the ground. The knob 40 is used to drive the meshing shaft 37 to rotate and for fixing the rubber strip 29.

[0037] Refer to Figure 7 , a locking rod 41 for pressing the meshing shaft 37 to rotate is installed on the side of the housing 33 away from the connecting belt 31. When it is necessary to fix the meshing shaft 37, by rotating the locking rod 41, the side of the locking rod 41 close to the meshing shaft 37 abuts and presses against the meshing shaft 37, so that the meshing shaft 37 can be fixed from rotating by friction, and then the rubber strip 29 can be fixed.

[0038] Refer to Figure 2 And Figure 8 , a handrail 42 is installed on the side of the lifting rod 4 away from the guide plate 22. The handrail 42 is for the user of the treadmill to hold for improving the safety of the user. A clamping post 43 is provided on the side of the handrail 42 close to the lifting rod 4. The clamping post 43 is used to clamp and fix the handrail 42 to fix the handrail 42 on the lifting rod 4. A clamping groove 44 is provided on the side of the handrail 42 close to the clamping post 43. The clamping groove 44 is for the clamping post 43 to be clamped and fixed, and the clamping groove 44 is located along the height direction of the lifting rod 4 and at least two clamping grooves 44 are provided, so that the adjustment of different heights of the handrail 42 can be realized. Furthermore, while the height of the handrail 42 can be adjusted, the fixing stability of the handrail 42 can be increased, and the safety of the user using the treadmill can be further improved.

[0039] Refer to Figure 9, a clamping magnet 45 for clamping and fixing the clamping post 43 is arranged on the lifting rod 4. The clamping magnet 45 is located on the inner wall of the clamping groove 44 away from the ground. A sliding groove 46 for the clamping magnet 45 to slide is formed on the side of the lifting rod 4 away from the ground. The sliding groove 46 is communicated with the clamping groove 44. The sliding groove 46 is used to limit the clamping magnet 45 during suspension and reduce the deviation of the clamping magnet 45. A suspension magnet 47 for controlling the suspension of the clamping magnet 45 is arranged on the lifting rod 4. The suspension magnet 47 is located on the inner wall of the clamping groove 44 close to the ground. A locking groove 48 for locking the suspension magnet 47 is formed on the inner wall of the clamping groove 44 away from the sliding groove 46. The locking groove 48 is used to fix the suspension magnet 47 so that the suspension distance of the clamping magnet 45 remains unchanged.

[0040] Refer to Figure 9 , an adsorption magnet 49 is installed on the side of the clamping post 43 close to the clamping magnet 45. The adsorption magnet 49 is used to attract the clamping magnet 45 to make the clamping magnet 45 abut against the clamping post 43, so as to clamp and fix the clamping post 43. A locking cavity 50 for locking the adsorption magnet 49 is formed on the clamping post 43. The locking cavity 50 is located on the side of the clamping post 43 close to the clamping magnet 45. The adsorption magnet 49 and the clamping magnet 45 are mutually adsorbed. The adsorption magnet 49 is locked through the locking cavity 50, so as to reduce the probability of the adsorption magnet 49 detaching due to magnetic attraction. In this embodiment, the clamping post 43 is made of a magnetic isolation material. When the clamping post 43 is clamped and fixed, the magnetic isolation material weakens the repulsive magnetic force between the suspension magnet 47 and the clamping magnet 45, resulting in a decrease in the suspension distance of the clamping magnet 45. And the range of magnetic force weakening changes with the range of the clamping post 43 covering the suspension magnet 47, resulting in left-right deviation when the clamping magnet 45 is suspended.

[0041] Refer to Figure 9 , a clamping protrusion 51 is arranged on the side of the clamping post 43 away from the ground. The clamping protrusion 51 is used to push the clamping magnet 45 to slide along the height direction of the sliding groove 46 when the clamping post 43 is clamped and fixed. Two inclined surfaces 52 are arranged on the clamping protrusion 51. The inclined surfaces 52 are used to facilitate the clamping protrusion 51 to push the clamping magnet 45 to slide along the height direction of the sliding groove 46 when the clamping post 43 is clamped and fixed or disengaged from the clamping groove 44, so as to reduce the difficulty of clamping and fixing the clamping post 43 or disengaging from the clamping groove 44 when the suspension distance of the clamping magnet 45 is deviated.

[0042] Refer to Figure 2 And Figure 3, a fixing sleeve 53 for fixing the handrail 42 is sleeved on the lifting rod 4, and the inner wall of the fixing sleeve 53 abuts against the lifting rod 4 and slides along the height direction of the lifting rod 4. A connecting rod 54 is welded between the clamping column 43 and the handrail 42, and a clamping groove 55 for clamping and fixing the connecting rod 54 is opened on the side of the fixing sleeve 53 close to the ground. The clamping groove 55 of the fixing sleeve 53 slides downward by gravity to make the connecting rod 54 fall into the clamping groove 55. When the connecting rod 54 falls into the clamping groove 55, the side of the fixing sleeve 53 close to the lifting rod 4 abuts against the side of the clamping column 43 close to the connecting column 25, so that the clamping column 43 is fixed in the clamping groove 44 to fix the handrail 42, thereby further improving the stability of the handrail 42.

[0043] The operation process of a height-adjustable treadmill according to an embodiment of the present invention is as follows: 1. Press the elastic clamping piece 19 to drive the lifting rod 4 to slide on the support rod 2, and match the corresponding mounting hole 20 on the lifting rod 4 with the clamping hole 21, and then drive the fixing protrusion 24 to clamp and fix in the clamping hole 21 through the connecting spring 13, so that the lifting rod 4 is pre-fixed on the support rod 2; 2. Sleeve the fixing hoop 9 on the connection between the support rod 2 and the lifting rod 4, and thread the connecting bolt 11 with the threaded groove 16 on the fixing lug 10 to fix the lifting rod 4, then fit the rubber protrusion 30 on the rubber strip 29 and the fixing protrusion 24 to each other and sleeve the rubber strip 29 on the support rod 2, insert the connecting strip on the rubber strip 29 into the engaging through hole 39, and rotate the knob 40 to make the connecting belt 31 tighten the rubber strip 29 so that the rubber strip 29 is fixed on the support rod 2, and thread the locking rod 41 with the side of the shell 33 away from the connecting belt 31 until the locking rod 41 abuts and presses against the engaging shaft 37.

[0044] Based on the same inventive concept, an embodiment of the present invention provides a control method for a treadmill with adjustable height, comprising: Step S100: Acquire image detection information on the treadmill and height detection information of the treadmill.

[0045] Image detection information refers to the image detected on the treadmill, which is obtained by shooting with a camera preset on the treadmill display device. Height detection information refers to the height information corresponding to the treadmill display device, which is obtained by detecting the distance between the display device and the ground with an infrared rangefinder preset on the treadmill display device.

[0046] Step S101: determining whether the treadmill is started or determining the height information of the human body according to the image detection information and the preset human body features.

[0047] Human body features refer to the features on a person's body, which are formed after the operator pre-stores the feature parameters of the corresponding parts on the person. Human body height information refers to the height of the human body corresponding to the treadmill. When no human body features appear in the image detection information, it means no one is using it, and the treadmill does not start. When human body features appear in the image detection information, it means someone is using the treadmill, and the parameter calculated by the height of the human body features corresponding to the image detection information and the preset image ratio is used as the human body height information.

[0048] Step S102: Determine whether to output a preset prompt message or determine the adjusted height information according to the comparison between the human body height information and the preset body posture situation.

[0049] The body posture situation refers to the body posture such as sitting or standing of the human body in the image detection information, which is formed after being preset and stored by the operator. The prompt message refers to the information used to prompt the person on the treadmill, which is formed after being preset and stored by the operator. The adjusted height information refers to the height corresponding to the display device on the treadmill after adjustment. When the body posture of the human body in the image detection information is a sitting position, it means the treadmill is not in use, and it is indicated that the selected human body features are bent and there is a detection deviation in the human body height information, then a preset prompt message is output. When the body posture of the human body in the image detection information is a standing position, it means the treadmill will be used, and the adjusted height information is matched from the preset motion database through the human body height information. Different human body heights corresponding to the treadmill heights are preset by humans in the motion database, which will not be elaborated here.

[0050] Step S103: Determine whether the adjustment is completed or determine the height deviation value according to the consistency between the adjusted height information and the height detection information.

[0051] The height deviation value refers to the deviation value between the adjusted height information and the height detection information. When the adjusted height information is consistent with the height detection information, it means that the height of the treadmill does not need to be adjusted. When the adjusted height information is inconsistent with the height detection information, it means that the height of the treadmill needs to be adjusted, and the deviation value between the adjusted height information and the height detection information is calculated as the height deviation value.

[0052] Step S104: Determine the adjustment position according to the height deviation value and the height detection information, and give a prompt at the adjustment position.

[0053] The adjustment position refers to the position after adjusting the height of the treadmill. When the height deviation value is negative, the height detection information is used to prompt the position corresponding to the downward adjustment of the height deviation value as the adjustment position. When the height deviation value is positive, the height detection information is used to prompt the position corresponding to the upward adjustment of the height deviation value as the adjustment position.

[0054] In step S101 shown above, in order to further ensure the rationality of the control method of the treadmill after determining the human height information, it is necessary to perform a further separate analysis and calculation on the control method of the treadmill after determining the human height information, which will be described in detail through the following steps.

[0055] After determining the human height information, the control method of the treadmill further includes: Step S200: Determine whether to start the treadmill or output a preset prompt message according to the comparison between the image detection information and the preset reference image information, and obtain the weight detection information on the treadmill.

[0056] The reference image information refers to the reference image corresponding to the situation when there is no foreign object or person on the treadmill, which is formed after being preset and stored by the operator. The weight detection information refers to the weight of the foreign object detected on the treadmill. By comparing the image detection information with the reference image information, when there is no foreign object in the image detection information, it means that the treadmill can be directly started. When a foreign object appears in the image detection information, a preset prompt message is output to prompt the personnel to carry the foreign object, and the parameters detected by the pressure sensor preset on the treadmill are used as the weight detection information.

[0057] Step S201: Determine the position of the foreign object according to the image detection information.

[0058] The position of the foreign object refers to the position where the foreign object exists on the treadmill. The coordinate position parameter obtained by calculating the size of the foreign object in the image detection information with the preset image ratio is used as the position of the foreign object.

[0059] Step S202: Obtain the abutting distance between the treadmill and the surroundings according to the preset placement position of the treadmill.

[0060] The placement position of the treadmill refers to the coordinate position where the treadmill is placed, which is formed after being preset and stored by the operator. The abutting distance refers to the distance between the treadmill corresponding to the placement position of the treadmill and the surroundings that can be abutted. The distance detected by the infrared rangefinder preset on the treadmill to the surroundings is used as the abutting distance.

[0061] Step S203: Determine the state of the foreign object and the foreign object size information corresponding to the state of the foreign object according to the image detection information.

[0062] The state of the foreign object refers to the state where the foreign object on the treadmill is tilted. The foreign object size information refers to the size information corresponding to the foreign object on the treadmill. The foreign object size information is obtained by calculating the size of the foreign object in the image detection information with the preset image ratio, and the state where the foreign object on the treadmill is tilted is determined as the state of the foreign object by the parallel situation between the foreign object in the image detection information and the treadmill.

[0063] Step S204: Determine the minimum foreign object distance based on the foreign object size information and the foreign object state.

[0064] The minimum foreign object distance refers to the minimum distance at which the foreign object can be placed. When in the foreign object state, the minimum horizontal distance corresponding to the foreign object is used as the minimum foreign object distance.

[0065] Step S205: Determine the movement time based on the foreign object state.

[0066] The movement time refers to the time required for the treadmill to move to discharge the foreign object. The movement time is matched from the preset discharge database based on the foreign object state. In the discharge database, the movement time of different foreign objects corresponding to different states on the treadmill and the movement amplitude of the user corresponding to different running speeds of the treadmill are preset manually, which will not be elaborated here.

[0067] Step S206: Select the angle corresponding to the abutment distance greater than the minimum foreign object distance as the discharge angle according to the comparison between the abutment distance and the minimum foreign object distance.

[0068] The discharge angle refers to the angle information after rotation corresponding to the discharge of the foreign object by the treadmill. The angle after rotation of the treadmill corresponding to the abutment distance greater than the minimum foreign object distance is selected as the discharge angle.

[0069] Step S207: Determine the running direction according to the discharge angle.

[0070] The running direction refers to the direction in which the conveyor belt on the treadmill needs to run. The direction corresponding to the shortest distance for discharging the foreign object through the discharge angle is used as the running direction.

[0071] Step S208: Determine the angle vector deviation value according to the discharge angle and the placement angle corresponding to the preset treadmill placement position, and control the preset rotating device to lift and rotate the treadmill according to the angle vector deviation value.

[0072] The placement angle refers to the angle at the time of placement corresponding to the treadmill placement position, which is formed by being preset and stored by the operator. The angle vector deviation value refers to the vector deviation value between the discharge angle and the placement angle. The difference between the discharge angle and the placement angle is calculated as the angle vector deviation value, and the preset rotating device is controlled to lift and rotate the treadmill according to the angle vector deviation value.

[0073] Step S209: After the treadmill is lifted and rotated, control the treadmill to run according to the running direction and the movement time to discharge the foreign object.

[0074] After the treadmill is lifted and rotated, the treadmill is controlled to run by the running direction and moving time to discharge foreign objects, so that the foreign objects on the treadmill can be discharged, reducing the potential safety hazards such as unstable running of the treadmill caused by foreign objects during use and the risk of users falling.

[0075] In the above-mentioned step S104, in order to further ensure the rationality of the control method of the treadmill after determining the adjusted height information, it is necessary to conduct a further separate analysis and calculation on the control method of the treadmill after determining the adjusted height information, which will be specifically described in detail through the following steps.

[0076] It also includes the control method of the treadmill after determining the adjusted height information: Step S300: Determine whether the treadmill runs or determine the number of people in the image according to the comparison between the adjusted height information and the preset reference height information.

[0077] The reference height information refers to the reference height corresponding to the personal use allowed by the treadmill, which is formed after being preset and stored by the operator. The number of people in the image refers to the number of people existing in the image detection information. When the adjusted height information is not less than the reference height information, the treadmill allows personal use and continues to run. When the adjusted height information is less than the reference height information, the treadmill does not allow personal use, and the number of people existing in the image detection information is used as the number of people in the image.

[0078] Step S301: If the number of people in the image is one, output the preset prompt information.

[0079] When the number of people in the image is one and the treadmill does not allow personal use, output the preset prompt information to remind the user that they need to run under the supervision of an adult.

[0080] Step S302: If the number of people in the image is two or more, determine the real-time face orientation of the face corresponding to the people in the image according to the image detection information.

[0081] The real-time face orientation refers to the real-time face orientation of the people in the image detection information. When the number of people in the image is two or more, it means that the treadmill can run, and the direction corresponding to the facial features of the people in the image detection information is identified as the real-time face orientation.

[0082] Step S303: Determine whether to output the preset prompt information or determine the distance of the people corresponding to the number of people in the image according to the real-time face orientation and the preset reference face orientation.

[0083] The reference face orientation refers to the direction corresponding to the face of the portrait in the image detection information facing the treadmill, which is formed by the operator's pre-setting and storing. The portrait distance refers to the distance between the portrait in the image detection information and the treadmill, and the parameter obtained by determining the size corresponding to the facial features in the image detection information and calculating it with the pre-set image ratio is used as the portrait distance.

[0084] Step S304: Determine whether to output the pre-set prompt information or control the operation of the treadmill according to the comparison between the portrait distance and the pre-set reference safety distance.

[0085] The reference safety distance refers to the safety distance between the person in the image detection information and the treadmill, which is formed by the operator's pre-setting and storing. When the portrait distance is greater than the reference safety distance, it indicates that there is a safety hazard for the user on the treadmill, and the pre-set prompt information is output. When the portrait distance is greater than the reference safety distance, it indicates that there is a care situation for the user on the treadmill, and the treadmill is controlled to continue running.

[0086] In step S104 shown above, in order to further ensure the rationality of the specific steps after controlling the operation of the treadmill, it is necessary to perform a further separate analysis and calculation on the specific steps after controlling the operation of the treadmill, which is specifically described in detail through the following steps.

[0087] It also includes the specific steps after controlling the operation of the treadmill: Step S401: Obtain the running speed of the treadmill.

[0088] The running speed refers to the real-time running speed of the treadmill, and the parameter on the display device of the treadmill is retrieved as the running speed.

[0089] Step S402: Determine the reference movement amplitude according to the running speed.

[0090] The reference movement amplitude refers to the reference amplitude of the up-and-down or left-and-right swing when the user of the treadmill moves corresponding to the running speed, and the reference movement amplitude is matched from the movement database through the running speed.

[0091] Step S403: Determine the human movement amplitude according to the human height information and the image detection information.

[0092] The human movement amplitude refers to the amplitude of the up-and-down or left-and-right swing when detecting the movement of the user of the treadmill. The position change and the height change interval of the human height information in the image detection information are used as the human movement amplitude.

[0093] Step S404: Determine whether the treadmill continues to output or determine the fall direction according to the comparison between the human movement amplitude and the reference movement amplitude.

[0094] The falling direction refers to the direction in which a treadmill user is likely to fall. When the amplitude of human movement is not greater than the reference movement amplitude, it indicates that the user is not likely to fall, and the treadmill continues to run. When the amplitude of human movement is greater than the reference movement amplitude, it indicates that the user is likely to fall. In this case, the direction in which the amplitude of human movement is greater than the reference movement amplitude is obtained by comparing the amplitude of human movement with the reference movement amplitude and is used as the falling direction. Step S405: Determine the head position based on the falling direction, the human height information, and the preset treadmill placement position.

[0095] The head position refers to the position of the head corresponding to the treadmill user when falling. Taking the treadmill placement position as the center, the parameter position corresponding to the human height information extended in the falling direction is used as the head position.

[0096] Step S406: Determine the ejection distance based on the head position and the preset treadmill placement position.

[0097] The ejection distance refers to the distance that the airbag device ejects. The straight-line distance between the head position and the treadmill placement position is calculated as the ejection distance. The airbag device is used to reduce the bumps or impacts generated when a treadmill user falls.

[0098] Step S407: Determine the corresponding real-time inflation volume based on the ejection distance.

[0099] The real-time inflation volume refers to the inflation volume required for the airbag device to eject at the ejection distance. The real-time inflation volume is matched from the preset inflation database based on the ejection distance. The inflation database is set in advance by humans to record different inflation volumes corresponding to different distances at which the airbag does not need to eject, which will not be elaborated here.

[0100] Step S408: Control the preset airbag device to inflate according to the real-time inflation volume and the falling direction.

[0101] Control the airbag device to inflate according to the real-time inflation volume and the falling direction to provide buffer protection when a treadmill user falls.

[0102] Step S409: Determine the falling angle based on the real-time movement amplitude.

[0103] The falling angle refers to the maximum angle corresponding to the treadmill user when falling. The angle of left and right swing of the treadmill user is retrieved based on the real-time movement amplitude as the falling angle.

[0104] Step S410: Determine whether the treadmill continues to run or control the preset airbag device to eject based on the comparison between the falling angle and the preset reference falling angle.

[0105] The reference fall angle refers to the minimum angle of swing when a user on the treadmill falls. When the fall angle is not less than the reference fall angle, the preset airbag device is controlled to pop up to protect the falling user. When the fall angle is less than the reference fall angle, the treadmill is controlled to continue running.

[0106] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. An adjustable-height treadmill, comprising a support rod (2), characterized in that: It further includes a lifting rod (4) connected to the side of the support rod (2) away from the ground and used for adjusting the height, and a sliding cavity (5) is formed on the support rod (2) for the lifting rod (4) to slide. A fixing structure (6) for fixing the lifting rod (4) is arranged on the support rod (2), the fixing structure (6) is located at the orifice of the sliding cavity (5), and the fixing structure (6) includes a connecting part (7) and a fixing part (8). The connecting part (7) includes a connecting bolt (11), a connecting cover (12) for strengthening the connection and fixation of the connecting bolt (11), a connecting spring (13) connected to the inner wall of the connecting cover (12) away from the fixing part (8), a connecting gasket (14) located between the connecting spring (13) and the connecting bolt (11), and a connecting block (15) for fixing the connecting cover (12). The connecting gasket (14) is connected to the inner wall side of the connecting spring (13) away from the connecting cover (12), and the connecting spring (13) is used to drive the connecting gasket (14) to press tightly towards the connecting bolt (11). The fixing part (8) includes a fixing hoop (9) and a fixing lug (10) connected to the fixing hoop (9). A connecting groove (17) for placing the connecting cover (12) is formed on the side of the fixing lug (10) close to the connecting bolt (11). A threaded groove (16) for cooperating with the connecting bolt (11) for threaded connection is formed on the fixing lug (10). The fixing lug (10) is used to drive the fixing hoop (9) to clamp to fix the lifting rod (4). A rotating groove (18) for placing the connecting block (15) and guiding the rotation is formed on the fixing lug (10), and the rotating groove (18) communicates with the connecting groove (17).

2. The adjustable-height treadmill according to claim 1, wherein: An elastic clamping member (19) for adjusting the distance between the lifting rod (4) and the support rod (2) is arranged on the lifting rod (4). An installation hole (20) for installing the elastic clamping member (19) is formed on the lifting rod (4). A clamping hole (21) for clamping and fixing the elastic clamping member (19) is formed on the side of the support rod (2) close to the installation hole (20). The clamping hole (21) is located in the height direction of the support rod (2) and at least two clamping holes (21) are formed. A guide plate (22) for installing the elastic clamping member (19) is arranged on the side of the lifting rod (4) close to the installation hole (20) along the height direction. A guide groove (23) for the guide plate (22) to slide is formed on the side of the lifting rod (4) close to the guide plate (22).

3. The adjustable-height treadmill according to claim 2, wherein: The elastic clamping member (19) includes a fixing protrusion (24), a connecting column (25) connected to a side of the fixing protrusion (24) away from the guide plate (22), a limiting plate (26) connected to a side of the connecting column (25) away from the fixing protrusion (24), a fixing spring (27) connected to a side of the limiting plate (26) away from the connecting column (25), and a fixing cushion block (28) connected to a side of the fixing spring (27) away from the limiting plate (26); The limiting plate (26) is used to limit the fixing protrusion (24) and is mutually limited with the mounting hole (20), the fixing spring (27) is used to drive the fixing protrusion (24) to slide, and a side of the fixing cushion block (28) away from the fixing spring (27) abuts against an inner wall of the rotary sleeve (56) away from the mounting hole (20); A rotary sleeve (56) for installing the fixing protrusion (24), the connecting column (25), the limiting plate (26), the fixing spring (27) and the fixing cushion block (28) is arranged on a side of the guide plate (22) away from the support rod (2). An internal cavity for the limiting plate (26) to slide is formed in the rotary sleeve (56). A side of the fixing cushion block (28) away from the fixing spring (27) abuts against an inner wall of the rotary sleeve (56) away from the mounting hole (20). A side of the lifting rod (4) close to the rotary sleeve (56) is threadedly connected to the rotary sleeve (56).

4. The adjustable-height treadmill according to claim 3, wherein: A rubber strip (29) is sleeved on the support rod (2). Rubber protrusions (30) are arranged on a side of the rubber strip (29) attached to the fixing protrusion (24), and the rubber protrusions (30) abut against the fixing protrusion (24); One end of the rubber strip (29) is provided with a connecting band (31), and the other end of the rubber strip (29) is provided with a fixing box for the connecting band (31) to be inserted and fixed; The fixing box includes a housing (33) fixedly connected to the rubber strip (29) and a meshing gear (34) meshing with the connecting band (31); A meshing hole for the meshing gear (34) to pass through is formed in the housing (33). A meshing shaft (37) for driving the connecting band (31) to rotate and mesh is fixedly connected to the meshing gear (34). A rotating hole (38) for the meshing shaft (37) to rotate is formed in the housing (33). A knob (40) is fixed to a side of the meshing shaft (37) close to the ground; A locking rod (41) for pressing the meshing shaft (37) to rotate is in threaded cooperation with a side of the housing (33) away from the connecting band (31).

5. The adjustable-height treadmill according to claim 1, wherein: An armrest (42) is provided on the lifting rod (4). A clamping post (43) for clamping and fixing the lifting rod (4) is provided on one side of the armrest (42) close to the lifting rod (4). A clamping groove (44) for the clamping post (43) to be clamped and fixed is formed on one side of the lifting rod (4) close to the clamping post (43). The clamping groove (44) is located in the height direction of the lifting rod (4) and at least two clamping grooves (44) are formed. A clamping magnet (45) is provided on the lifting rod (4). A levitation magnet (47) for controlling the clamping magnet (45) to levitate is provided on the lifting rod (4). A sliding groove (46) for the clamping magnet (45) to slide is formed on one side of the lifting rod (4) away from the ground. A locking groove (48) for locking the levitation magnet (47) is formed on one side of the lifting rod (4) close to the ground. The clamping groove (44), the locking groove (48) and the sliding groove (46) communicate with each other. An adsorption magnet (49) for attracting the clamping magnet (45) is provided on one side of the clamping post (43) close to the clamping magnet (45). A locking cavity (50) for locking the adsorption magnet (49) is formed on the clamping post (43). The adsorption magnet (49) is used for adsorbing the clamping magnet (45) and abutting against it.

6. The adjustable-height treadmill according to claim 5, wherein: A fixing sleeve (53) for fixing the armrest (42) is sleeved on the lifting rod (4). A connecting rod (54) is provided between the clamping post (43) and the armrest (42). A clamping groove (55) for the connecting rod (54) to be clamped and fixed is formed on one side of the fixing sleeve (53) close to the ground. When the connecting rod (54) falls into the clamping groove (55), one side of the fixing sleeve (53) close to the lifting rod (4) and one side of the clamping post (43) close to the connecting post (25) are limited and fixed.

7. A control method for a treadmill with adjustable height, applied to a treadmill with adjustable height as described in claim 1, characterized in that, Including: Obtaining image detection information on the treadmill and height detection information of the treadmill; Determining that the treadmill does not start or determining the human body height information according to the image detection information and preset human body characteristics; Determining to output preset prompt information or determining height adjustment information according to the comparison between the human body height information and the preset body posture; Determining to complete the adjustment or determining the height deviation value according to the consistency between the height adjustment information and the height detection information; Determining the adjustment position according to the height deviation value and the height detection information, and giving a prompt at the adjustment position.

8. The control method of a treadmill with adjustable height according to claim 7, characterized in that, After determining the human body height information, the control method of the treadmill further includes: Determining that the treadmill starts or outputting preset prompt information according to the comparison between the image detection information and the preset reference image information, and obtaining the weight detection information on the treadmill; Determining the foreign object position according to the image detection information; Obtaining the abutting distance between the treadmill and the surroundings according to the preset treadmill placement position; Determining the foreign object state and the foreign object size information corresponding to the foreign object state according to the image detection information; Determining the minimum foreign object distance according to the foreign object size information and the foreign object state; Determining the moving time according to the foreign object state; Select the angle corresponding to the abutment distance greater than the minimum distance of the foreign object as the discharge angle according to the comparison between the abutment distance and the minimum distance of the foreign object; Determine the running direction according to the discharge angle; Determine the angular vector deviation value according to the discharge angle and the placement angle corresponding to the preset treadmill placement position, and control the preset rotating device to lift and rotate the treadmill according to the angular vector deviation value; After the treadmill is lifted and rotated, control the treadmill to run to discharge the foreign object according to the running direction and the moving time.

9. The control method of a treadmill with adjustable height according to claim 7, characterized in that, It also includes the control method of the treadmill after determining the adjustment height information: Determine whether the treadmill runs or determine the number of human figures according to the comparison between the adjustment height information and the preset reference height information; If the number of human figures is one, output the preset prompt information; If the number of human figures is two or more, determine the real-time face orientation of the face corresponding to the human figure according to the image detection information; Determine whether to output the preset prompt information or determine the human figure distance corresponding to the number of human figures according to the real-time face orientation and the preset reference face orientation; Determine whether to output the preset prompt information or control the treadmill to run according to the comparison between the human figure distance and the preset reference safety distance.

10. The control method of a treadmill with adjustable height according to claim 9, characterized in that, It also includes the specific steps after controlling the treadmill to run: Obtain the running speed of the treadmill; Determine the reference motion amplitude according to the running speed; Determine the human body motion amplitude according to the human body height information and the image detection information; Determine whether the treadmill continues to output or determine the falling direction according to the comparison between the human body motion amplitude and the reference motion amplitude; Determine the head position according to the falling direction, the human body height information and the preset treadmill placement position; Determine the ejection distance according to the head position and the preset treadmill placement position; Determine the corresponding real-time inflation amount based on the ejection distance; Control the preset airbag device to inflate according to the real-time inflation amount and the falling direction; Determine the falling angle according to the real-time motion amplitude; Determine whether the treadmill continues to run or control the preset airbag device to pop out according to the comparison between the falling angle and the preset reference falling angle.

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