Treadmill convenient to fold

Abstract

The invention discloses a treadmill convenient to fold, and relates to the technical field of treadmills, the treadmill convenient to fold comprises a treadmill table, armrests, a folding assembly and two stand columns, the folding assembly comprises a handle, a connecting rod, a pull wire disc and a plug pin, the handle is rotatably connected to the armrests, the connecting rod is connected with the handle and the pull wire disc, a rope is wound on the pull wire disc, and the plug pin is inserted into the pull wire disc. The rope is connected with the bolt; the stand column is provided with a guide plate, the guide plate is provided with an arc-shaped guide hole, positioning holes are formed in the two ends of the arc-shaped guide hole, the diameter of the positioning holes is larger than that of the arc-shaped guide hole and is matched with that of the plug pin, and a guide shaft is arranged at the end of the plug pin. The diameter of the guide shaft is smaller than that of the bolt and is matched with that of the arc-shaped guide hole; the bolt is inserted into the positioning hole; the stand columns of the treadmill are folded in the mode that the handles are slightly pinched, the folding mode is simple, operation is convenient, and the folding structure is simple.

Description

Technical Field

[0001] This invention relates to the field of treadmill technology, specifically a foldable treadmill. Background Technology

[0002] Treadmills are fitness equipment used for indoor exercise.

[0003] Treadmills are typically bulky and inconvenient to transport, leading to the development of treadmills with foldable uprights. However, existing foldable treadmills often have complex folding mechanisms. For example, the treadmill one-button linkage folding mechanism disclosed in publication number CN210278104U includes an upright assembly, a base frame assembly, an upright sleeve, a pivot seat, a positioning bushing, a left pull rope, a right pull rope, a mounting plate, a pull rope sliding seat, and a linkage rod. The upright assembly includes a left column and a right column, with the lower ends of both the left and right columns equipped with... A column sleeve has a positioning plate with positioning holes formed on its outer circumference. The base assembly includes a left frame and a right frame. A pivot seat is installed on the outer side of both the left and right frames, and a positioning bushing is installed on the bottom surface of both the left and right frames. A spring and a positioning pin are installed inside the positioning bushing. One end of the left pull rope and one end of the right pull rope enter the positioning bushing from the inside, and after passing through the spring, they connect to one end of the positioning pin. The other ends of the left and right pull ropes simultaneously pass around the pull rope sliding seat and connect to the middle end of the linkage rod. This mechanism achieves a one-button linkage folding method, simplifying operation and ensuring safety and reliability. However, it has the following defects: (1) The linkage folding structure is complex and has many parts, and the stability of the locking and unlocking process is not good; (2) When folding the column assembly, by pressing down the free end of the linkage rod (which can be done by foot), the middle end of the linkage rod pulls the other end of the left and right pull ropes at the same time, so that one end of the positioning pin in the positioning bushing on both sides exits the positioning hole. At this time, the spring is compressed, the column sleeve and the rotating shaft seat are released from positioning, and the column assembly can be rotated down to realize the folding of the treadmill. During the folding process, the linkage rod must be continuously acted on to complete the down or unfolding state of the column assembly at the same time. It requires two people to complete, so the folding operation is troublesome. Summary of the Invention

[0004] This invention discloses a treadmill that is easy to fold, in order to solve the technical problem of the complicated folding operation process.

[0005] To address the aforementioned technical problems, the present invention proposes the following optimized technical solutions: A foldable treadmill includes a running platform, handrails, a folding assembly, and two uprights, one end of which is rotatably connected to the running platform, and the handrails are connected to the other end of the uprights. The folding assembly includes a handle, a connecting rod, a pull cord reel, and a pin. The handle is rotatably connected to the armrest. The connecting rod connects the handle and the pull cord reel. A rope is wound around the pull cord reel and connected to the pin. The column has a guide plate with an arc-shaped guide hole. Positioning holes are located at both ends of the arc-shaped guide hole. The diameter of the positioning holes is larger than the diameter of the arc-shaped guide hole and matches the diameter of the pin. A guide shaft is located at the end of the pin. The diameter of the guide shaft is smaller than the diameter of the pin and matches the diameter of the arc-shaped guide hole. The pin is inserted into the positioning hole. When the handle is squeezed, the handle drives the pull reel to rotate via the connecting rod, and the rope retracts to pull the pin away from the positioning hole.

[0006] Furthermore, the handrail is provided with a first connecting plate, the first connecting plate having a strip-shaped hole, one end of the handle being rotatably connected to the first connecting plate, and the middle part being connected to the connecting rod via a connecting shaft.

[0007] Furthermore, there are two connecting rods, which are connected end to end and connect the handle and the pull cable reel.

[0008] Furthermore, the pin is fitted with a spring.

[0009] Furthermore, the handrail is rotatably connected to the column, the handle is provided with a locking strip, the column is provided with a second connecting plate, the second connecting plate is provided with a locking groove, and the locking strip is inserted into the locking groove.

[0010] Furthermore, the folding assembly also includes a guide sleeve disposed on the running platform, and the pin is movably disposed within the guide sleeve. When the rope is pulled, the rope pulls the pin to move the guide sleeve away from the column.

[0011] Furthermore, the treadmill includes a frame, a drive assembly, and a treadmill belt. The drive assembly is mounted on the frame, and the treadmill belt is mounted on the drive assembly. The drive assembly is used to drive the treadmill belt.

[0012] Furthermore, the drive assembly includes a motor, a conveyor belt, a front roller, and a rear roller. The motor is mounted on the frame, and a drive gear is sleeved on the output shaft of the motor. The front roller and the rear roller are rotatably connected to the frame. A driven gear is sleeved on the front roller. The conveyor belt is sleeved on the drive gear and the driven gear, and the running belt is sleeved on the front roller and the rear roller.

[0013] Furthermore, the frame is provided with a horizontal shaft, which is rotatably connected to the frame, and the two columns are respectively connected to both ends of the horizontal shaft.

[0014] Furthermore, the present invention also includes a buffer assembly, which includes a buffer cylinder and a bushing, the bushing being sleeved on the horizontal shaft, and the output shaft of the buffer cylinder being rotatably connected to the connecting lug of the bushing.

[0015] Furthermore, the present invention also includes a lifting assembly, which includes a lifting motor and a sleeve, the sleeve being fitted onto the horizontal shaft, and the lifting motor being connected to a connecting lug of the sleeve.

[0016] The present invention has the following advantages over the prior art: The treadmill provided by this invention discloses a running platform, handrails, a folding assembly, and two uprights. When the handle of the folding assembly is squeezed, since the handle is rotatably connected to the handrail, the squeezed end of the handle can rise and drive the connecting rod to rise. The rising connecting rod drives the cable reel to rotate. When the cable reel rotates, the cable is wound up, and the wound cable pulls the pin, causing the pin to move away from the upright and disengage from the positioning hole. At this time, the guide shaft is located in the positioning hole, and the upright can be folded downwards. The upright can rotate from its bottom end, and the guide shaft moves from the positioning hole through the arc-shaped guide hole to another positioning hole, realizing the folding of the upright. The upright of the treadmill is folded by gently squeezing the handle. The folding method is simple, easy to operate, and the folding structure is simple. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the treadmill in its unfolded state according to the present invention.

[0018] Figure 2 This is a structural schematic diagram of the treadmill handrail in its folded state according to the present invention.

[0019] Figure 3 This is a structural schematic diagram of the treadmill handrails and uprights in a folded state according to the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the treadmill of the present invention. Figure 1 .

[0021] Figure 5 This is a schematic diagram of the structure of the treadmill of the present invention. Figure 2 .

[0022] Figure 6 This is a structural schematic diagram of the handrail, column, and folding assembly of the present invention.

[0023] Figure 7 yes Figure 6 Enlarged view of point A.

[0024] Figure 8 yes Figure 6 Enlarged view of point B.

[0025] Figure 9 yes Figure 6 Enlarged view of point C.

[0026] Figure 10 This is a structural diagram of the guide plate and the pin.

[0027] In the diagram: 1. Running board; 2. Handrail; 3. Column; 4. Folding assembly; 5. Handle; 6. Connecting rod; 7. Cable tray; 8. Pin; 9. Guide plate; 10. Arc-shaped guide hole; 11. Positioning hole; 12. Guide shaft; 13. First connecting plate; 14. Strip hole; 15. Locking strip; 16. Second connecting plate; 17. Locking slot; 18. Guide sleeve; 19. Frame; 20. Running belt; 21. Motor; 22. Conveyor belt; 23. Front roller; 24. Rear roller; 25. Horizontal shaft; 26. Buffer cylinder; 27. Bushing; 28. Wear-resistant block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] See Figures 1-10 A foldable treadmill includes a running platform 1, handrails 2, a folding assembly 4, and two uprights 3. One end of each upright is rotatably connected to the running platform 1, and the other end of each handrail is connected to the handrail 3. The handrail 2 is used to mount a control panel.

[0030] The folding assembly 4 includes a handle 5, a connecting rod 6, a pull cord reel 7, and a pin 8. The handle 5 is rotatably connected to the armrest 2, specifically by a pivot. The connecting rod 6 connects the handle 5 and the pull cord reel 7, specifically by a pivot at one end of the connecting rod 6 to the handle 5 and at the other end to the pull cord reel 7. A rope is wound around the pull cord reel 7, and the rope is connected to the pin 8. The column 3 is provided with a guide plate 9, which has an arc-shaped guide hole 10. The arc-shaped guide hole 10 has positioning holes 11 at both ends. The diameter of the positioning holes 11 is larger than the diameter of the arc-shaped guide hole 10 and matches the diameter of the pin 8. The end of the pin 8 has a guide shaft 12, which has a smaller diameter than the diameter of the pin 8 and matches the diameter of the arc-shaped guide hole 10. The pin 8 is inserted into the positioning holes 11.

[0031] When the column 3 needs to be folded, squeeze the handle 5. The handle 5 will rotate and the squeezed end will rise. When the handle 5 rises, it will drive the connecting rod 6 to move upward. The upward movement of the connecting rod 6 will drive the pull coil 7 to rotate. The rotation of the pull coil 7 will cause the rope to contract. The extension and retraction of the rope will pull the pin 8 away from the positioning hole 11. Specifically, the pin 8 will move away from the column 3. At this time, the pin 8 will be disengaged from the positioning hole 11 and the guide shaft 12 will be located in the positioning hole 11. Since the diameter of the guide shaft 12 is smaller than the diameter of the positioning hole 11 and is adapted to the diameter of the arc-shaped guide hole 10, the guide plate 9 can rotate when the column 3 is folded down. At this time, the guide shaft 12 will move from the positioning hole 11 through the arc-shaped guide hole 10 to another positioning hole 11. After releasing the handle 5, the pin 8 will reset and be inserted into the other positioning hole 11. At this time, the pin 8 has a positioning function for the guide plate 9 and the column 3, which can limit the column 3 to the folded state.

[0032] Here, the rope is preferably a steel wire rope.

[0033] In this embodiment, the handrail 2 is provided with a first connecting plate 13, the first connecting plate 13 is provided with a strip hole 14, one end of the handle 5 is rotatably connected to the first connecting plate 13, and the middle part is connected to the connecting rod 6 through a connecting shaft. When the handle 5 is squeezed, the handle 5 rotates with one end, and the squeezed end rises. At this time, the handle 5 drives the connecting rod 6 to rise, and the connecting shaft moves within the strip hole 14.

[0034] In this embodiment, there are two connecting rods 6, which are connected end to end and connect the handle 5 and the pull cable reel 7.

[0035] In this embodiment, the pin 8 is fitted with a spring. When the spring is squeezed, the pin 8 moves away from the column 3 and compresses the spring. When the handle 5 is released, the spring rebounds and can reset the pin 8 to be re-inserted into the positioning hole 11. Therefore, the function of the spring is to reset the pin 8.

[0036] In this embodiment, the handrail 2 is rotatably connected to the column 3. The handle 5 is provided with a locking strip 15, and the column 3 is provided with a second connecting plate 16. The second connecting plate 16 is provided with a locking groove 17, and the locking strip 15 is inserted into the locking groove 17. When the handle 5 is pinched, the pinched end of the handle 5 rises upward. At this time, the locking strip 15 disengages from the locking groove 17, allowing the handrail 2 to be rotated to fold the handrail 2, thus further folding the treadmill to a higher degree.

[0037] In this embodiment, the folding assembly 4 further includes a guide sleeve 18, which is disposed on the running platform 1. The pin 8 is movably disposed within the guide sleeve 18. When the rope is pulled, the rope pulls the pin 8 to move the guide sleeve 18 away from the column 3. The guide sleeve 18 has a guiding effect on the pin 8 and can limit the movement direction of the pin 8 to a straight line, moving closer to or away from the column 3.

[0038] In this embodiment, the treadmill 1 includes a frame 19, a drive assembly, and a running belt 20. The drive assembly is disposed on the frame 19, and the running belt 20 is disposed on the drive assembly. The drive assembly is used to drive the running belt 20 for transmission, and people run on the running belt 20.

[0039] In this embodiment, the drive assembly includes a motor 21, a conveyor belt 22, a front roller 23, and a rear roller 24. The motor 21 is mounted on the frame 19, and the output shaft sleeve 27 of the motor 21 has a drive gear. The front roller 23 and the rear roller 24 are both rotatably connected to the frame 19. A driven gear is fitted on the front roller 23. The conveyor belt 22 is fitted on the drive gear and the driven gear, and the running belt 20 is fitted on the front roller 23 and the rear roller 24. The motor 21 can drive the front roller 23 to rotate through the drive gear, the driven gear, and the conveyor belt 22. With the running belt 20 connected, the front roller 23 and the rear roller 24 rotate together to ensure the transmission of the running belt 20.

[0040] Additionally, the frame 19 is equipped with a support plate, which is located between the front roller 23 and the rear roller 24. The running belt 20 also covers the support plate. When a person runs on the running belt 20, the support plate serves to support the person.

[0041] In this embodiment, the frame 19 is provided with a horizontal shaft 25, which is rotatably connected to the frame 19. The two columns 3 are respectively connected to the two ends of the horizontal shaft 25. The horizontal shaft 25 is used to connect the columns 3 and make the columns 3 present a certain angle.

[0042] Additionally, wear-resistant blocks 28 are provided on the frame 19. When the upright is folded, the wear-resistant blocks 28 are placed between the support and the upright to provide wear resistance.

[0043] In this embodiment, the invention further includes a buffer assembly comprising a buffer cylinder 26 and a bushing 27. The bushing 27 is fitted onto the horizontal shaft 25, and the output shaft of the buffer cylinder 26 is rotatably connected to the connecting lug of the bushing 27. The buffer cylinder 26 provides a buffering effect against the rotation of the bushing 27. When the column 3 is folded, the buffer cylinder 26 allows the column 3 to be lowered slowly, preventing the column 3 from collapsing suddenly and causing an impact.

[0044] In this embodiment, the invention further includes a lifting assembly, which comprises a lifting motor and a sleeve. The sleeve is fitted onto the horizontal shaft 25, and the lifting motor is connected to the connecting lug of the sleeve. The lifting motor has a conventional structure, with core components including a motor body, an output shaft, and a gear housing. The output shaft is a cylindrical shaft with surface teeth. The gear housing meshes with the output shaft and is connected to a bushing 27. The lifting motor, through the meshing of the output shaft and the gear housing, can control the lifting and lowering of the front end of the treadmill.

[0045] Additionally, the bottom of the running board 1 is equipped with anti-slip pads.

[0046] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A foldable treadmill, characterized in that, It includes a running platform, handrails, a folding assembly, and two uprights, one end of which is rotatably connected to the running platform, and the handrails are connected to the other end of the uprights; The folding assembly includes a handle, a connecting rod, a pull cord reel, and a pin. The handle is rotatably connected to the armrest. The connecting rod connects the handle and the pull cord reel. A rope is wound around the pull cord reel and connected to the pin. The column has a guide plate with an arc-shaped guide hole. Positioning holes are located at both ends of the arc-shaped guide hole. The diameter of the positioning holes is larger than the diameter of the arc-shaped guide hole and matches the diameter of the pin. A guide shaft is located at the end of the pin. The diameter of the guide shaft is smaller than the diameter of the pin and matches the diameter of the arc-shaped guide hole. The pin is inserted into the positioning hole. When the handle is squeezed, the handle drives the pull reel to rotate via the connecting rod, and the rope retracts to pull the pin away from the positioning hole.

2. The foldable treadmill according to claim 1, characterized in that, The handrail is provided with a first connecting plate, which has a strip hole. One end of the handle is rotatably connected to the first connecting plate, and the middle part is connected to the connecting rod through a connecting shaft.

3. A foldable treadmill according to claim 1 or 2, characterized in that, There are two connecting rods, which are connected end to end and connect the handle and the pull cable reel.

4. A foldable treadmill according to claim 1, characterized in that, The pin is fitted with a spring.

5. A foldable treadmill according to claim 1, characterized in that, The handrail is rotatably connected to the column, the handle is provided with a locking strip, the column is provided with a second connecting plate, the second connecting plate is provided with a locking groove, and the locking strip is inserted into the locking groove.

6. A foldable treadmill according to claim 1, characterized in that, The folding assembly also includes a guide sleeve disposed on the running platform, and a pin movably disposed within the guide sleeve. When the rope is pulled, the rope pulls the pin, causing the guide sleeve to move away from the column.

7. A foldable treadmill according to claim 1, characterized in that, The treadmill includes a frame, a drive assembly, and a treadmill belt. The drive assembly is mounted on the frame, and the treadmill belt is mounted on the drive assembly. The drive assembly is used to drive the treadmill belt.

8. A foldable treadmill according to claim 5, characterized in that, The drive assembly includes a motor, a conveyor belt, a front roller, and a rear roller. The motor is mounted on the frame, and a drive gear is sleeved on the output shaft of the motor. The front roller and the rear roller are rotatably connected to the frame. A driven gear is sleeved on the front roller. The conveyor belt is sleeved on the drive gear and the driven gear. The running belt is sleeved on the front roller and the rear roller.

9. A foldable treadmill according to claim 5, characterized in that, The frame is provided with a horizontal shaft, which is rotatably connected to the frame, and the two columns are respectively connected to both ends of the horizontal shaft.

10. A foldable treadmill according to claim 8, characterized in that, It also includes a buffer assembly, which includes a buffer cylinder and a bushing, the bushing being fitted onto the horizontal shaft, and the output shaft of the buffer cylinder being rotatably connected to the connecting lug of the bushing.

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