A treadmill and method of using same

Abstract

The application relates to the technical field of treadmills, in particular to a treadmill and a use method thereof, which comprises a treadmill main body, a running track, a driving motor; wherein the running track comprises a bottom track, an upper running area, a middle upper running area, a middle lower running area, a lower running area, a triggering mechanism and a reset mechanism; the triggering mechanism comprises a plurality of resistance sleeves with different resistance values, the positions of the resistance sleeves with different resistance values correspond to the positions below the upper running area, the middle upper running area, the middle lower running area and the lower running area respectively, one side of the resistance sleeve is provided with a triggering block, and the resistance sleeve is connected with the driving motor through a central circuit. The application has the advantages that: according to the movement in different running areas, the current input of the driving motor is controlled by the resistance value of the resistance sleeve arranged under the different running areas, the output rotating speed of the driving motor is further controlled, when speed regulation is needed, the corresponding speed regulation can be completed by independently moving to the corresponding running area, accurate speed regulation is realized, and the operation is convenient and fast.

Description

Technical Field

[0001] This application relates to the field of treadmill technology, and in particular to a treadmill and its method of use. Background Technology

[0002] A treadmill is a device that allows an object to run or walk on the upper part of a moving circular belt (walking belt), thereby enabling indoor running and walking, for example, for training and rehabilitation.

[0003] All existing treadmills can adjust the speed. For manually adjustable treadmills, if you release the handrail to adjust the speed at a high speed, you are prone to falling and causing safety accidents. For voice-controlled treadmills, because runners often breathe rapidly during running, it is not easy to give the correct instructions when adjusting the speed, and the treadmill has difficulty recognizing the instructions.

[0004] Based on this, the applicant filed a Chinese invention patent application with application number CN202211661095.2 on December 23, 2022, which describes a treadmill and its usage method. When speed adjustment is required, the user can control the current input to the AC motor by changing the running position on the treadmill, thereby changing the speed of the treadmill. The resistance level is controlled by the running time after changing the position, thereby changing the current level and precisely controlling the running speed of the treadmill.

[0005] As shown in the patent document, when the treadmill speed needs to be adjusted, the user runs from the middle running board position to the upper running board position. After the upper running board bounces, it first triggers the drive mechanism, which in turn activates the interval mechanism. After multiple activations of the interval mechanism, the adjustment mechanism controls the resistance of the sliding rheostat to decrease, thereby increasing the current input to the AC motor and making the running platform move faster. When the treadmill speed needs to be adjusted, the user runs from the middle running board position to the lower running board position. After the lower running board bounces, it first triggers the drive mechanism, which in turn activates the interval mechanism. After multiple activations of the interval mechanism, the adjustment mechanism controls the resistance of the sliding rheostat to increase, thereby decreasing the current input to the AC motor and making the running platform move slower.

[0006] Regarding the above solution, the applicant found after production testing that, in terms of speed adjustment, the areas of the upper running board, middle running board and lower running board are clearly divided, which results in only three speed adjustment levels and limits the scope of use.

[0007] This application proposes improvements to address these issues. Summary of the Invention

[0008] The purpose of this application is to address at least one of the aforementioned technical deficiencies.

[0009] Therefore, one objective of this application is to provide a treadmill and a method of using it to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0010] To achieve the above objectives, one embodiment of this application provides a treadmill and its method of use, including a treadmill body, a running platform, and a drive motor; wherein, the drive motor is installed inside the treadmill body and is used to drive a transmission belt to move the running platform; the running platform includes a base, an upper running zone, a middle-upper running zone, a middle-lower running zone, a lower running zone, a trigger mechanism, and a reset mechanism; the trigger mechanism includes several resistor sleeves with different resistance values, the positions of the resistor sleeves with different resistance values ​​corresponding to the lower part of the upper running zone, the middle-upper running zone, the middle-lower running zone, and the lower running zone, respectively, and a trigger block is disposed on one side of each resistor sleeve. The central circuit is connected to the drive motor to provide different currents to control the speed of the drive motor. The reset mechanism includes a drive rack, which is a half-tooth rack, with a drive gear meshing on one side and a winding part on one side of the drive gear. It also includes a reset rack, which is a full-tooth rack, with a reset gear meshing on one side and a driven gear meshing on one side of the reset gear. The reset mechanism is used to slowly reset the running platform to ensure that the speed of the drive motor does not change when another area is not stepped on.

[0011] Preferably, one side of the base platform has several limiting holes and a few through slots, the positions of which correspond to one side of the drive rack and one side of the reset rack, respectively.

[0012] Preferably, one side of the base is fixedly connected to a plurality of support plates, the support plates being concave in shape, the support plates being arranged in an array evenly on the base, and a plurality of mounting holes being provided on one side of the support plates, the interior of the mounting holes being fixedly connected to the outside of the resistor sleeve.

[0013] Preferably, in any of the above embodiments, the upper running area includes an upper running plate, one side of which is fixedly connected to one side of a drive rack, one side of which is fixedly connected to one side of a reset rack, one side of which is fixedly connected to a first limiting rod, one side of which is slidably connected to the inside of a limiting hole, and one side of which is fixedly connected to one side of a trigger block. The middle-upper running area includes a middle-upper running plate, one side of which is fixedly connected to one side of a drive rack, one side of which is fixedly connected to one side of a reset rack, one side of which is fixedly connected to a second limiting rod, one side of which is slidably connected to the inside of a limiting hole, and one side of which is fixedly connected to one side of a trigger block.

[0014] Preferably, in any of the above embodiments, the lower running zone includes a lower running plate, one side of which is fixedly connected to one side of the drive rack, one side of which is fixedly connected to one side of the reset rack, one side of which is fixedly connected to a third limiting rod, one side of which is slidably connected to the inside of a limiting hole, and one side of which is fixedly connected to one side of a trigger block. The lower running zone includes a lower running plate, one side of which is fixedly connected to one side of the drive rack, one side of which is fixedly connected to one side of the reset rack, one side of which is fixedly connected to a fourth limiting rod, one side of which is slidably connected to the inside of a limiting hole, and one side of which is fixedly connected to one side of the trigger block.

[0015] Preferably, in any of the above embodiments, the winding section includes a mounting plate, a fixing sleeve is fixedly connected to one side of the mounting plate, a coil spring is fixedly connected inside the fixing sleeve, a connecting rod is rotatably connected to one side of the fixing sleeve, a mounting groove is provided on one side of the connecting rod, the inside of the mounting groove is fixedly connected to one side of the coil spring, and one side of the connecting rod is fixedly connected to one side of the drive gear.

[0016] Preferably, in any of the above embodiments, a positioning rod is fixedly connected to one side of the driven gear, a pawl is rotatably connected to one side of the positioning rod, an elastic baffle is disposed on one side of the pawl, one side of the elastic baffle is fixedly connected to one side of the driven gear, an annular groove is formed on one side of the driven gear, an inner ratchet is rotatably connected inside the annular groove, the ratchet teeth of the inner ratchet are disposed on one side of the pawl, a positioning plate is provided on one side of the driven gear, and two support rods are rotatably connected to one side of the positioning plate, one side of one support rod is fixedly connected to one side of the reset gear, and one side of the other support rod is fixedly connected to one side of the driven gear.

[0017] A method of using a treadmill, characterized in that, upon starting the treadmill, the speed of the drive motor is determined based on the user's initial position (specific parameters: in the upper running zone, the resistance value of the resistor sleeve at this location is the lowest, the current of the drive motor is the highest, and the speed of the drive motor is the highest; in the upper-middle running zone, the resistance value of the resistor sleeve at this location is greater than the resistance value in the upper running zone, and so on; the resistance value of the resistor sleeve at the lower running zone is greater than the resistance value of the resistor sleeve at the lower-middle running zone, greater than the resistance value of the resistor sleeve at the lower-middle running zone, greater than the resistance value of the resistor sleeve at the lower-middle running zone, and similarly, the speed of the drive motor is greater in the upper running zone than in the upper-middle running zone, greater than the speed of the drive motor at the lower-middle running zone, and greater than the speed of the drive motor at the lower running zone). If the user initially runs in the lower-middle running zone and needs to reduce the speed, simply move downwards from the upper position to decrease the speed of the drive motor, thus reducing the speed; if the user needs to increase the speed, move upwards from the lower position to increase the speed of the drive motor, thus increasing the speed.

[0018] Compared with the prior art, the advantages and beneficial effects of this application are as follows:

[0019] In this application, the input current to the drive motor is controlled by varying the resistance values ​​of resistor sleeves configured in different running zones, thereby controlling the output speed of the drive motor. When speed adjustment is needed, the user simply moves to the corresponding running zone to complete the adjustment, achieving precise and convenient speed control. Furthermore, it offers more speed settings, enabling near-stepless speed regulation depending on the area.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a perspective view of the assembly according to an embodiment of this application;

[0023] Figure 2 This is a partial schematic diagram according to an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of a treadmill according to an embodiment of this application;

[0025] Figure 4 This is a partial schematic diagram of the treadmill according to an embodiment of this application;

[0026] Figure 5According to the embodiments of this application Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a schematic diagram of the running area according to an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the reset mechanism according to an embodiment of this application;

[0029] Figure 8 This is a schematic diagram of the drive gear connection according to an embodiment of this application;

[0030] Figure 9 This is a schematic diagram of a ratchet explosion according to an embodiment of this application;

[0031] Figure 10 This is a schematic diagram of the winding section according to an embodiment of this application.

[0032] In the diagram: 1. Treadmill body; 2. Running platform; 21. Base platform; 2101. Support plate; 22. Upper running zone; 2201. Upper running plate; 2202. First limit bar; 23. Upper middle running zone; 2301. Upper middle running plate; 2302. Second limit bar; 24. Lower middle running zone; 2401. Lower middle running plate; 2402. Third limit bar; 25. Lower running zone; 2501. Lower running plate; 2502. Fourth limit bar; 26. Trigger mechanism; 2601 2602. Resistor sleeve; 27. Trigger block; 28. Reset mechanism; 29. ​​Drive rack; 2002. Drive gear; 2003. Reset rack; 2004. Reset gear; 2005. Driven gear; 2006. Pawl; 2007. Inner ratchet; 2008. Positioning plate; 2009. Support rod; 20000. Winding part; 2001. Mounting plate; 2002. Fixing sleeve; 2003. Coil spring; 2004. Connecting rod; 3. Drive motor. Detailed Implementation

[0033] like Figures 1 to 10 As shown, a treadmill and its usage method are disclosed, which includes a treadmill body 1, a running platform 2, and a drive motor 3.

[0034] Furthermore, the drive motor 3 is installed inside the treadmill body 1 and is used to drive the transmission belt to move the running platform 2.

[0035] Furthermore, the running platform 2 includes a base platform 21, an upper running area 22, a middle-upper running area 23, a middle-lower running area 24, a lower running area 25, a triggering mechanism 26, and a reset mechanism 27.

[0036] Furthermore, in order to match the different speeds of the drive motor to achieve different gears, a trigger mechanism 26 is provided. The trigger mechanism 26 includes several resistor sleeves 2601 with different resistance values. The positions of the resistor sleeves 2601 with different resistance values ​​correspond to the lower part of the upper running area 22, the upper middle running area 23, the lower middle running area 24, and the lower running area 25, respectively. A trigger block 2602 is arranged on one side of the resistor sleeve 2601. The resistor sleeve 2601 is connected to the drive motor 3 through a central circuit.

[0037] Furthermore, in order to reset the movement of the corresponding running platforms (upper running platform, upper middle running platform, lower middle running platform, and lower running platform) when running in different running areas, a reset mechanism 27 is provided. The reset mechanism 27 includes a drive rack 2701, which is a half-tooth rack. A drive gear 2702 is meshed on one side of the drive rack 2701, and a winding part 28 is provided on one side of the drive gear 2702. It also includes a reset rack 2703, which is a full-tooth rack. A reset gear 2704 is meshed on one side of the reset rack 2703, and a driven gear 2705 is meshed on one side of the reset gear 2704.

[0038] The winding section 28 includes a mounting plate 2801. A fixing sleeve 2802 is fixedly connected to one side of the mounting plate 2801. A coil spring 2803 is fixedly connected inside the fixing sleeve 2802. A connecting rod 2804 is rotatably connected to one side of the fixing sleeve 2802. A mounting groove is provided on one side of the connecting rod 2804. The inside of the mounting groove is fixedly connected to one side of the coil spring 2803. One side of the connecting rod 2804 is fixedly connected to one side of the drive gear 2702.

[0039] The drive rack 2701 is a half-tooth rack and the reset rack 2703 is a full-tooth rack, to match the winding and releasing stroke of the coil spring 2803.

[0040] Furthermore, to ensure that the movement between the drive rack and the reset rack does not interfere with each other, a positioning rod is fixedly connected to one side of the driven gear 2705, and a pawl 2706 is rotatably connected to one side of the positioning rod. An elastic baffle is disposed on one side of the pawl 2706, and one side of the elastic baffle is fixedly connected to one side of the driven gear 2705. An annular groove is formed on one side of the driven gear 2705, and an inner ratchet 2707 is rotatably connected inside the annular groove. The ratchet teeth of the inner ratchet 2707 are disposed on one side of the pawl 2706. A positioning plate 2708 is provided on one side of the driven gear 2705, and two support rods 2709 are rotatably connected to one side of the positioning plate 2708. One side of one support rod 2709 is fixedly connected to one side of the reset gear 2704, and one side of the other support rod 2709 is fixedly connected to one side of the driven gear 2705.

[0041] Furthermore, a plurality of limiting holes are provided on one side of the base platform 21, and a plurality of through slots are provided on one side of the base platform 21. The positions of the through slots correspond to one side of the drive rack 2701 and one side of the reset rack 2703, respectively. A plurality of support plates 2101 are fixedly connected to one side of the base platform 21. The support plates 2101 are concave in shape and are evenly arranged in an array on the base platform 21. A plurality of mounting holes are provided on one side of the support plates 2101. The interior of the mounting holes is fixedly connected to the outside of the resistor sleeve 2601.

[0042] A rubber buffer block is fixed on one side of the support plate 2101 to buffer the running track when it comes into contact with the support plate 2101.

[0043] The upper running area 22 includes an upper running plate 2201, one side of which is fixedly connected to one side of a drive rack 2701, and another side of which is fixedly connected to one side of a reset rack 2703. A first limiting rod 2202 is fixedly connected to one side of the upper running plate 2201, and one side of the first limiting rod 2202 is slidably connected to the inside of a limiting hole. One side of the upper running plate 2201 is also fixedly connected to one side of a trigger block 2602. The middle-upper running area 23 includes a middle-upper running plate 2301, one side of which is fixedly connected to one side of a drive rack 2701, and one side of the upper-middle running platform 2 is fixedly connected to one side of a reset rack 2703. A second limiting rod 2302 is fixedly connected to one side of the middle-upper running plate 2301, and one side of the second limiting rod 2302 is slidably connected to the inside of a limiting hole. One side of the middle-upper running plate 2301 is also fixedly connected to one side of the trigger block 2602. The lower running zone 24 includes a lower running plate 2401. One side of the lower running plate 2401 is fixedly connected to one side of the drive rack 2701, and another side of the lower running plate 2401 is fixedly connected to one side of the reset rack 2703. A third limiting rod 2402 is fixedly connected to one side of the lower running plate 2401, and one side of the third limiting rod 2402 is slidably connected to the inside of the limiting hole. One side of the lower running plate 2401 is fixedly connected to one side of the trigger block 2602. The lower running zone 25 includes a lower running plate 2501. One side of the lower running plate 2501 is fixedly connected to one side of the drive rack 2701, and another side of the lower running plate 2501 is fixedly connected to one side of the reset rack 2703. A fourth limiting rod 2502 is fixedly connected to one side of the lower running plate 2501, and one side of the fourth limiting rod 2502 is slidably connected to the inside of the limiting hole. One side of the lower running plate 2501 is fixedly connected to one side of the trigger block 2602.

[0044] A treadmill and its usage method, the working principle of which is as follows:

[0045] When using the treadmill, start the machine and determine the speed of the drive motor 3 based on the user's initial position (specific parameters: in the upper running zone 22, the resistance of the resistor sleeve 2601 is at its minimum, the current of the drive motor 3 is at its maximum, and the speed of the drive motor 3 is at its maximum; in the upper-middle running zone 23, the resistance of the resistor sleeve 2601 is greater than that in the upper running zone 22, and so on; the resistance of the resistor sleeve 2601 in the lower running zone 25 is greater than that in the lower-middle running zone 24, which is greater than that in the upper-middle running zone 23, which is greater than that in the upper running zone 22; similarly, the speed of the drive motor 3 is greater in the upper running zone 22 than in the upper-middle running zone 23). When the speed of drive motor 3 is greater than that when it is in the lower middle running zone 24 (and greater than that when it is in the lower running zone 25), if the user initially runs in the lower middle running zone 24, the user's running motion causes the upper middle running plate 2301 to be subjected to the stepping force. The upper running plate 2201 drives the trigger block 2602 to move, causing the trigger block 2602 to move towards the resistor sleeve 2601. The trigger block 2602 contacts the inside of the resistor sleeve 2601, so that the current connected to drive motor 3 remains unchanged. Simultaneously, it drives the drive rack 2701 and the reset rack 2703 installed with it to move downward. As the drive rack 2701 moves, when the teeth of the drive rack 2701 mesh with the drive gear 2702, it drives the drive gear 2702 to rotate, driving... The rotation of the drive gear 2702 drives the connecting rod 2804 to move, which in turn drives the coil spring 2803 to coil up. In this rotational direction, the drive gear 2702 drives the inner ratchet 2707 to rotate. When the inner ratchet 2707 and pawl 2706 are aligned, the driven gear 2705 does not rotate. The movement of the reset rack 2703 drives the reset gear 2704 to rotate, which in turn drives the driven gear 2705 to rotate. At this time, the cooperation between the reset gear 2704 and the driven gear 2705 ensures that the driven gear 2705 rotates in the same direction as the drive gear 2702. When one side is finished pedaling, the other side is pedaled. After the foot on that side is lifted, the coil spring 2803 is no longer under the coiling force, and the coiling action is switched. In the released state, the drive connecting rod 2804 reverses, which in turn causes the drive gear 2702 to reverse. Under the mounting direction of the inner ratchet 2707 and pawl 2706, the driven gear 2705 rotates synchronously. The rotation of the driven gear 2705 drives the reset gear 2704, which meshes with it, to rotate in the opposite direction. The reset gear 2704 drives the reset rack 2703 to move, resetting the upper and middle running plates (similarly, the principle is the same when in the upper running zone 22, the lower running zone 24, and the lower running zone 25). When downshifting is needed, simply move downwards from the upper zone to reduce the speed of the drive motor 3, completing the downshifting operation. When upshifting is needed, move upwards from the lower zone to increase the speed of the drive motor 3, completing the upshifting operation. Except for the corresponding running zones...It also allows for exercise between every two running zones. During these intervals, the resistance sleeves under the two corresponding running zones work synchronously to achieve a different pace.

[0046] In addition, regarding intelligence, the treadmill shown in this application integrates advanced sensors to monitor user exercise data (such as speed, heart rate, cadence, calorie consumption, etc.), and analyzes the user's exercise habits and health status through AI algorithms to provide personalized exercise plans and fitness suggestions.

[0047] Utilizing biometric technology, such as fingerprint or facial recognition, the device ensures that only authorized users can activate it. Based on the user's profile, it automatically adjusts to preset comfortable exercise parameters. Furthermore, it can recommend specific times and areas for users to run at specific speeds based on data recorded or entered in their profile, thus forming a complete running plan. This plan can be delivered to the user via voice prompts.

[0048] It integrates with the Internet of Things and mobile applications: deeply connected to mobile devices such as smartphones and smartwatches, it synchronizes exercise data in real time and supports remote control and scheduling of training courses. It can also push health reports, physical fitness assessments, and nutritional advice through the app.

[0049] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A treadmill, characterized in that: Includes the treadmill body (1), running platform (2), and drive motor (3); The drive motor (3) is installed inside the treadmill body (1) and is used to drive the transmission belt to move the running platform (2). The running platform (2) includes a base platform (21), an upper running area (22), an upper middle running area (23), a lower middle running area (24), a lower running area (25), a triggering mechanism (26), and a reset mechanism (27). The triggering mechanism (26) includes several resistor sleeves (2601) with different resistance values. The positions of the resistor sleeves (2601) with different resistance values ​​correspond to the lower part of the upper running area (22), the upper middle running area (23), the lower middle running area (24), and the lower running area (25), respectively. A trigger block (2602) is arranged on one side of the resistor sleeve (2601). The resistor sleeve (2601) is connected to the drive motor (3) through the central circuit and is used to provide different currents to the drive motor (3) to control the speed of the drive motor (3). The reset mechanism (27) includes a drive rack (2701), which is a half-tooth rack. A drive gear (2702) meshes with one side of the drive rack (2701), and a winding part (28) is provided on one side of the drive gear (2702). It also includes a reset rack (2703), which is a full-tooth rack, and a reset gear (2704) meshes on one side of the reset rack (2703) and a driven gear (2705) meshes on one side of the reset gear (2704). The reset mechanism (27) is used to slowly reset the running platform (2) to ensure that the speed of the drive motor (3) does not change when the other area is not stepped on.

2. The treadmill according to claim 1, characterized in that: The base (21) has several limiting holes on one side and several through slots on one side, the positions of which correspond to one side of the drive rack (2701) and one side of the reset rack (2703).

3. A treadmill according to claim 1, characterized in that: A number of support plates (2101) are fixedly connected to one side of the base (21). The support plates (2101) are concave in shape and are evenly arranged in an array on the base (21). A number of mounting holes are opened on one side of the support plates (2101), and the inside of the mounting holes is fixedly connected to the outside of the resistor sleeve (2601).

4. A treadmill according to claim 1, characterized in that: The upper running area (22) includes an upper running plate (2201), one side of which is fixedly connected to one side of a drive rack (2701), and another side of which is fixedly connected to one side of a reset rack (2703). A first limiting rod (2202) is fixedly connected to one side of the upper running plate (2201), and one side of the first limiting rod (2202) is slidably connected to the inside of a limiting hole. One side of the upper running plate (2201) is fixedly connected to one side of a trigger block (2602). The upper running area (23) includes an upper running plate (2301), one side of which is fixedly connected to one side of a drive rack (2701), one side of which is fixedly connected to one side of a reset rack (2703), one side of which is fixedly connected to a second limiting rod (2302), one side of which is slidably connected to the inside of a limiting hole, and one side of which is fixedly connected to one side of a trigger block (2602).

5. A treadmill according to claim 1, characterized in that: The lower running zone (24) includes a lower running plate (2401). One side of the lower running plate (2401) is fixedly connected to one side of the drive rack (2701), and another side of the lower running plate (2401) is fixedly connected to one side of the reset rack (2703). A third limiting rod (2402) is fixedly connected to one side of the lower running plate (2401), and one side of the third limiting rod (2402) is slidably connected to the inside of the limiting hole. One side of the lower running plate (2401) is fixedly connected to the trigger block (2602). On one side, the lower running area (25) includes a lower running plate (2501), one side of the lower running plate (2501) is fixedly connected to one side of the drive rack (2701), one side of the lower running plate (2501) is fixedly connected to one side of the reset rack (2703), one side of the lower running plate (2501) is fixedly connected to a fourth limiting rod (2502), one side of the fourth limiting rod (2502) is slidably connected to the inside of the limiting hole, and one side of the lower running plate (2501) is fixedly connected to one side of the trigger block (2602).

6. A treadmill according to claim 1, characterized in that: The winding section (28) includes a mounting plate (2801), a fixing sleeve (2802) is fixedly connected to one side of the mounting plate (2801), a coil spring (2803) is fixedly connected inside the fixing sleeve (2802), a connecting rod (2804) is rotatably connected to one side of the fixing sleeve (2802), an installation groove is provided on one side of the connecting rod (2804), the inside of the installation groove is fixedly connected to one side of the coil spring (2803), and one side of the connecting rod (2804) is fixedly connected to one side of the drive gear (2702).

7. A treadmill according to claim 1, characterized in that: A positioning rod is fixedly connected to one side of the driven gear (2705), and a pawl (2706) is rotatably connected to one side of the positioning rod. An elastic baffle is provided on one side of the pawl (2706), and one side of the elastic baffle is fixedly connected to one side of the driven gear (2705). An annular groove is provided on one side of the driven gear (2705), and an inner ratchet (2707) is rotatably connected inside the annular groove. The ratchet teeth of the inner ratchet (2707) are located on one side of the pawl (2706). A positioning plate (2708) is provided on one side of the driven gear (2705), and two support rods (2709) are rotatably connected to one side of the positioning plate (2708). One side of one support rod (2709) is fixedly connected to one side of the reset gear (2704), and one side of the other support rod (2709) is fixedly connected to one side of the driven gear (2705).

8. A method of using a treadmill according to any one of claims 1-7, characterized in that, When in use, start the treadmill and determine the specific parameters of the drive motor (3) speed based on the user's initial position. In the upper running zone (22), the resistance value of the resistor sleeve (2601) is the smallest, the current of the drive motor (3) is the largest, and the speed of the drive motor (3) is the largest. In the middle-upper running zone (23), the resistance value of the resistor sleeve (2601) is greater than that in the upper running zone (22), and so on: the resistance value of the resistor sleeve (2601) in the lower running zone (25) is greater than that in the middle-lower running zone (24), which is greater than that in the middle-upper running zone (23), which is greater than that in the upper running zone (25). The resistance value of the resistor sleeve (2601) under the upper running zone (22) is similar. When the user is in the upper running zone (22), the speed of the drive motor (3) is greater than when the user is in the middle-upper running zone (23), the speed of the drive motor (3) is greater than when the user is in the middle-lower running zone (24), and the speed of the drive motor (3) is greater than when the user is in the lower running zone (25). If the user needs to downshift when running in the middle-lower running zone (24), the user only needs to move from the running zone to the lower running zone (25) to reduce the speed of the drive motor (3) and complete the downshift operation. If the user needs to upshift, the user moves from the running zone to the upper running zone (22) to increase the speed of the drive motor (3) and complete the upshift operation.

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