treadmill

Abstract

The present application discloses a treadmill, including a treadmill and a transmission mechanism installed on the treadmill, the transmission mechanism including: a front roller, including a front roller and a front synchronous rod, and the front synchronous rod is provided with front rollers at both ends; a rear roller, including a rear roller and a rear synchronous rod, and the rear synchronous rod is provided with rear rollers at both ends; a conveyor belt, which is arranged on the front roller and the rear roller on the same side, and the conveyor belt forms a belt transmission connection with the front roller and the rear roller; wherein a plurality of protrusions are arranged on the working surface of the rear roller, and the plurality of protrusions are arranged at intervals along the circumference of the rear roller, and each protrusion is provided with a plurality of synchronous teeth, and the inner side surface of the conveyor belt is provided with a slot adapted to the synchronous teeth. Since the transmission mechanism of the embodiment of the present application is provided with a plurality of protrusions on the rear roller, it can ensure that the conveyor belts on both sides can rotate synchronously with the two rear rollers, so as to improve the stability of the two conveyor belts during operation, and is conducive to reducing the noise during operation.

Description

Technical Field

[0001] The present application relates to the field of mechanical equipment, and in particular to a treadmill. Background Art

[0002] Treadmills are common fitness equipment in homes and gyms, and are the simplest type of home fitness equipment today. They are the best choice for home fitness equipment. A treadmill consists of a running platform and handrails. The running platform is used to support users to run or walk on it, and the handrails are provided with various electronic components to control the treadmill and provide interactive functions. A treadmill with a tilting function is proposed in the related art, that is, the running platform of the treadmill can be tilted, but because the structure of the device driving the treadmill to tilt is relatively complex, the external size of the treadmill is relatively large, and the stability of the treadmill during the tilting process is also relatively poor. Summary of the invention

[0003] The embodiment of the present application provides a treadmill to solve one or more technical problems in the prior art.

[0004] The treadmill according to the embodiment of the present application includes a treadmill and a transmission mechanism installed on the treadmill, the transmission mechanism includes: a front roller, including a front roller and a front synchronization rod, and front rollers are provided at both ends of the front synchronization rod; a rear roller, including a rear roller and a rear synchronization rod, and rear rollers are provided at both ends of the rear synchronization rod; a conveyor belt, which is arranged on the front roller and the rear roller located on the same side, and the conveyor belt forms a belt drive connection with the front roller and the rear roller; wherein a plurality of protrusions are arranged on the working surface of the rear roller, the plurality of protrusions are arranged at intervals along the circumference of the rear roller, each protrusion is arranged with a plurality of synchronization teeth, and the inner side surface of the conveyor belt is provided with a card groove adapted to the synchronization teeth.

[0005] In one embodiment, a projection shape of the plurality of synchronous teeth on the axial cross section of the rear drum is a sawtooth shape.

[0006] In one embodiment, a plurality of synchronous teeth are provided on each protrusion, and the grooves on the inner side surface of the conveyor belt cooperate with the synchronous teeth.

[0007] In one embodiment, there are two conveyor belts, which are respectively mounted on the front roller and the rear roller on both sides, and a crawler belt is installed between the two conveyor belts.

[0008] In one embodiment, the crawler track is formed by splicing a plurality of crawler strips, and each crawler strip is fixed between two conveyor belts.

[0009] In one embodiment, the track is made of metal material, and the outer surface of the track is covered with rubber material.

[0010] In one embodiment, a rear retaining ring is provided on the outer edge of the end surface of the rear roller on the side away from the conveyor belt.

[0011] In one embodiment, a front retaining ring is provided on the outer edge of the end surface of the front roller on the side away from the conveyor belt.

[0012] In one embodiment, a polyurethane layer is provided on the working surface of the front roller.

[0013] In one embodiment, the treadmill further includes: a first driving device, the first driving device is installed on the treadmill, and the first driving device is drivingly connected to the rear synchronization rod.

[0014] In one embodiment, the first driving device includes a motor, and the treadmill also includes: a control system, the control system is electrically connected to the motor, the control system is used to control the motor to switch rotation modes, the rotation modes include a first rotation mode and a second rotation mode, wherein in the first rotation mode, the speed of the motor gradually decreases, and in the second rotation mode, the motor rotates forward and reverse within a preset time period.

[0015] In one embodiment, the treadmill also includes a lifting mechanism, which includes: a sliding rod, which is arranged on the treadmill; a slider, which is slidably mounted on the sliding rod; a support rod, one end of which is hinged to the treadmill, and the other end of which is rotatably supported on the ground; a connecting rod, one end of which is hinged to the slider, and the other end of which is hinged to the support rod; a second driving device, the output end of which is connected to the slider, and is used to drive the slider to slide on the sliding rod while controlling the connecting rod to drive the support rod to rotate relative to the treadmill to adjust the inclination angle of the treadmill.

[0016] In one embodiment, the sliding rod is arranged along the length direction of the treadmill.

[0017] In one embodiment, the other end of the support rod is supported on the ground via rollers.

[0018] In one embodiment, the treadmill includes: two baffles, which are arranged opposite to each other in the width direction of the treadmill, and one end of the support rod is hinged to at least one baffle; two cross bars, which are connected between the two baffles, and the two cross bars are arranged opposite to each other along the length direction of the treadmill, and the sliding rod is connected between the two cross bars.

[0019] In one embodiment, there are two sliding rods that are disposed opposite to each other and arranged side by side along the width direction of the treadmill, and the sliding block is slidably mounted on the two sliding rods.

[0020] In one embodiment, there are two supporting rods arranged opposite to each other, one end of each supporting rod is hinged to two baffles respectively; there are two connecting rods, one end of each connecting rod is hinged to two ends of a sliding block respectively, and the other end of each connecting rod is hinged to the two supporting rods respectively.

[0021] In one embodiment, a synchronization rod is provided between the two support rods, and two ends of the synchronization rod are respectively connected to the two support rods.

[0022] In one embodiment, the second driving device is fixed to one of the two cross bars, and the output end of the second driving device is constructed as a telescopic rod structure.

[0023] In one embodiment, the support rod includes a first section and a second section connected to the first section, an angle is formed between the first section and the second section with the opening direction being upward, and a connection between the first section and the second section is smoothly transitioned.

[0024] One embodiment of the above application has the following advantages or beneficial effects: by setting multiple protrusions on the rear roller, it can be ensured that the conveyor belts on both sides can rotate synchronously with the two rear rollers, so as to improve the stability of the two conveyor belts during operation and help reduce noise during operation.

[0025] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0027] Figure 1 A schematic structural diagram of a treadmill according to an embodiment of the present application is shown;

[0028] Figure 2 A schematic structural diagram of a lifting mechanism of a treadmill according to an embodiment of the present application is shown;

[0029] Figure 3 A schematic structural diagram of a rear roller of a treadmill according to an embodiment of the present application is shown;

[0030] Figure 4 A schematic diagram showing the structure of the front roller of a treadmill according to an embodiment of the present application is shown;

[0031] Figure 5 A schematic structural diagram of a treadmill according to an embodiment of the present application is shown;

[0032] Figure 6 Show Figure 1 A local enlarged schematic diagram of the middle A;

[0033] Figure 7 Show Figure 1 A local enlarged schematic diagram of point B in the middle. DETAILED DESCRIPTION

[0034] The following is a description of exemplary embodiments of the present application in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0035] Refer to the following Figure 1-Figure 7 A treadmill 1000 according to an embodiment of the present application is described.

[0036] like Figure 1 and Figure 3 As shown, the treadmill 1000 according to the embodiment of the present application includes a transmission mechanism 100 and a treadmill 200. The transmission mechanism 100 includes a front roller 10, a rear roller 20 and a conveyor belt 30.

[0037] Specifically, the front roller 10 includes a front roller 12 and a front synchronization rod 11, and the front rollers 12 are provided at both ends of the front synchronization rod 11, and the front synchronization rod 11 is used to keep the two front rollers 12 rotating synchronously. The rear roller 20 includes a rear roller 22 and a rear synchronization rod 21, and the rear rollers 22 are provided at both ends of the rear synchronization rod 21, and the rear rollers 22 are used to keep the two rear synchronization rods 21 rotating synchronously. The conveyor belt 30 is arranged on the front roller 12 and the rear roller 22 located on the same side, and the conveyor belt 30 is connected with the front roller 12 and the rear roller 22 in a belt transmission.

[0038] In one example, if Figure 3 As shown, the front roller 10 and the rear roller 20 are arranged opposite to each other in the front-to-back direction. The two front rollers 12 are connected to the left and right ends of the front synchronization rod 11, and the two rear rollers 22 are located at the left and right ends of the rear synchronization rod 21. The front roller 12 located on the left side is arranged opposite to the rear roller 22 located on the left side, and the front roller 12 located on the right side is arranged opposite to the rear roller 22 located on the right side. There are two conveyor belts 30, one of which is sleeved on the front roller 12 and the rear roller 22 located on the left side, and the other conveyor belt 30 is sleeved on the front roller 12 and the rear roller 22 located on the right side. A crawler belt 40 can be connected between the two conveyor belts 30, and the crawler belt 40 is synchronously driven with the two conveyor belts 30.

[0039] Further, a plurality of protrusions 22a are provided on the working surface of the rear roller 22, and the plurality of protrusions 22a on the two rear rollers 22 are arranged opposite to each other, and the plurality of protrusions 22a are arranged at intervals along the circumference of the rear roller 22, and a clamping groove 31 adapted to the synchronous tooth 22b is provided on the inner side surface of the conveyor belt 30. For example, the plurality of protrusions 22a on the two rear rollers 22 can be configured to be arranged one-to-one in the left-right direction, thereby ensuring the parallelism of a pair of protrusions 22a correspondingly arranged on the two rear rollers 22 in the left-right direction, thereby ensuring the synchronous transmission of the conveyor belts 30 located on both sides. It can be understood that the plurality of protrusions 22a are distributed at intervals in the circumference of the rear roller 22, and through the cooperation of the clamping groove 31 and the protrusions 22a, the conveyor belt 30 and the rear roller 22 can form a chain transmission mechanism 100, thereby improving the transmission ratio between the rear roller 22 and the conveyor belt 30.

[0040] In one example, the rear synchronization rod 21 can be connected to the output end of the driving device so that the rear synchronization rod 21 rotates around its central axis and drives the two rear rollers 22 to rotate synchronously. The two front rollers 12 and the rear rollers 22 rotate synchronously through the two conveyor belts 30.

[0041] According to the transmission mechanism 100 of the embodiment of the present application, by providing a plurality of protrusions 22a on the rear roller 22, and the conveyor belt 30 having a slot 31 adapted to the plurality of protrusions 22a, it is ensured that the conveyor belts 30 on both sides can rotate synchronously with the two rear rollers 22, thereby avoiding relative displacement between the two conveyor belts 30, and further ensuring the synchronous operation of the two conveyor belts 30. Thus, it can be ensured that the crawler belt 40 connected between the two conveyor belts 30 runs smoothly, and the noise during operation is small.

[0042] In one embodiment, Figure 4 and Figure 6 As shown, the projection shape of the synchronous tooth 22b in the cross section in the axial direction of the rear drum 20 is a sector ring. The cross section of the synchronous tooth 22b in the axial direction of the rear drum 20 can be understood as the projection of the synchronous tooth 22b on a plane perpendicular to the central axis of the rear drum 20, and the projection shape of the synchronous tooth 22b is a sector ring.

[0043] In one embodiment, continue to refer to Figure 4 and Figure 6 As shown, each protrusion 22a is provided with a plurality of synchronous teeth 22b, and the slots 31 on the inner side surface of the conveyor belt 30 cooperate with the synchronous teeth 22b.

[0044] In one example, the projection shape of the multiple synchronous teeth 22b in the cross section in the axial direction of the rear drum 20 is a sawtooth shape. Specifically, the multiple synchronous teeth 22b on the protrusion 22a can be arranged in multiple groups along the circumferential direction of the rear roller 22, and the projection shape of the multiple synchronous teeth 22b in each group in the cross section in the circumferential direction of the rear drum 20 is a sawtooth shape. Thus, while ensuring the transmission connection between the rear roller 22 and the conveyor belt 30, the number of the protrusions 22a can be reduced, thereby reducing the difficulty of processing the multiple protrusions 22a and improving the processing efficiency of the rear roller 22.

[0045] In one embodiment, Figure 3 As shown, there are two conveyor belts 30, which are respectively sleeved on the front roller 12 and the rear roller 22 on both sides, and a crawler belt 40 is connected between the two conveyor belts 30. For example, the crawler belt 40 can be constructed as a closed loop structure, and the inner surface of the crawler belt 40 is fixedly connected to the outer surfaces of the two conveyor belts 30, so that the two conveyor belts 30 drive the crawler belt 40 to operate. Among them, the crawler belt 40 can be used as the running belt of the treadmill 1000 to realize the running function of the treadmill 1000.

[0046] In one embodiment, the crawler belt 40 is formed by splicing a plurality of crawler rails 41 , and each crawler rail 41 is connected between two conveyor belts 30 .

[0047] In one example, if Figure 6 and Figure 7 As shown, a plurality of tracks 41 are sequentially arranged along the circumference of the conveyor belt 30 to form a track 40 with a closed loop structure. The two conveyor belts 30 are respectively provided with mounting holes corresponding to each other in the left-right direction, and the mounting holes on each conveyor belt 30 are arranged at intervals along the length direction of the conveyor belt 30. Each track 41 is provided with two positioning posts, and the two positioning posts are respectively penetrated through the mounting holes corresponding to the positions on the two conveyor belts 30. In this way, the parallelism of the plurality of tracks 41 between the two conveyor belts 30 can be ensured, and the stability of the operation of the track 40 can be further improved.

[0048] Preferably, an elastic member is provided between the conveyor belt 30 and the crawler belt 40, and the positioning column on the crawler belt 40 passes through the elastic member and fits into the mounting hole on the conveyor belt 30. Thus, direct contact between the crawler belt 40 and the conveyor belt 30 can be avoided, and a shock absorbing and buffering effect is achieved.

[0049] In one embodiment, the crawler 40 is composed of an aluminum alloy and a synthetic rubber. For example, each crawler 41 can be a structure in which a synthetic rubber is coated on the outer surface of the aluminum alloy. Thus, while ensuring the rigidity of the crawler 41, the outer surface of the crawler 41 can have a certain elasticity. When the user runs on the crawler 40, the crawler 40 can provide the user with a certain vibration reduction and buffering effect, thereby improving the user experience.

[0050] In one embodiment, Figure 4 As shown, the rear roller 22 includes a rear sleeve 221 and a rear hub 222. The rear hub 222 is sleeved on the rear sleeve 221. The rear sleeve 221 is provided with a keyway 121a adapted to the rear synchronization rod 21. Among them, a plurality of protrusions 22a are provided on the outer circumference of the rear hub 222. The rear sleeve 221 is connected to the synchronization rod 333 through a positioning key installed in the keyway 121a to achieve torque transmission. Preferably, the rear hub 222 is concentrically arranged with the rear sleeve 221.

[0051] Optionally, the rear axle sleeve 221 is made of 45# steel, and the rear wheel hub 222 is made of reinforced nylon. It is understandable that 45# steel has higher strength and deformation resistance than ordinary A3 steel, thereby improving the mechanical properties of the rear axle sleeve 221 to extend the service life of the rear axle sleeve 221. Reinforced nylon can be a mixed material of nylon and glass fiber, so that the rear wheel hub 222 has better mechanical properties and is not easily deformed.

[0052] Alternatively, if Figure 4 As shown, the rear wheel hub 222 includes an inner ring portion 2221 and an outer ring portion 2222, the inner ring portion 2221 is sleeved on the rear shaft sleeve 221, the outer ring portion 2222 is sleeved on the inner ring portion 2221, the inner ring portion 2221 and the outer ring portion 2222 are connected by a plurality of spokes 2223, the plurality of spokes 2223 are arranged at intervals along the circumference of the outer ring portion 2222, and each spoke 2223 extends from the inner ring portion 2221 to the outer ring portion 2222 along the radial direction of the outer ring portion 2222. The inner ring portion 2221 and the rear shaft sleeve 221 are in interference fit, and the plurality of spokes 2223 and the inner ring portion 2221 can be an integral piece.

[0053] Furthermore, the inner circumferential wall of the outer ring portion 2222 is provided with a plurality of positioning grooves 2222a corresponding to the plurality of spokes 2223, and one end of the spoke 2223 away from the inner ring portion 2221 is provided with a positioning portion 2223a matched in the positioning groove 2222a. Specifically, the plurality of positioning grooves 2222a are arranged at intervals along the circumference of the outer ring portion 2222, and one end of the spoke 2223 adjacent to the outer ring portion 2222 is configured with a positioning portion 2223a, and the positioning portion 2223a is clamped in the positioning groove 2222a, so that the inner ring portion 2221 drives the outer ring portion 2222 to rotate through the plurality of spokes 2223.

[0054] In one embodiment, Figure 4As shown, a rear retaining ring 23 is provided on the side of the rear roller 22 away from the conveyor belt 30 in the axial direction, and the outer diameter of the rear retaining ring 23 is larger than the maximum outer diameter of the rear roller 22. For example, the rear retaining ring 23 on the rear roller 22 located on the left side of the rear synchronization rod 21 is located on the left side of the rear roller 22, and the rear retaining ring 23 on the rear roller 22 located on the right side of the rear synchronization rod is located on the right side of the rear roller 22, and the outer diameter of the rear retaining ring 23 is larger than the diameter of the outer edge contour formed by the multiple protrusions 22a on the rear roller 22. In this way, the conveyor belt 30 can be prevented from detaching from the rear roller 22 from the side of the rear roller 22.

[0055] In one embodiment, Figure 5 As shown, a front retaining ring 123 is provided on the side of the front roller 12 in the axial direction away from the conveyor belt 30, and the outer diameter of the front retaining ring 123 is larger than the maximum outer diameter of the front roller 12. For example, the front retaining ring 123 on the front roller 12 located on the left side of the front synchronization rod 11 is located on the left side of the front roller 12, and the front retaining ring 123 on the front roller 12 located on the right side of the front synchronization rod is located on the right side of the front roller 12, and the outer diameter of the front retaining ring 123 is larger than the diameter of the outer edge contour formed by the multiple protrusions 22a on the front roller 12. In this way, the conveyor belt 30 can be prevented from detaching from the front roller 12 from the side of the front roller 12.

[0056] In one embodiment, Figure 5 As shown, the front roller 12 includes a front shaft sleeve 121 and a front wheel hub 122. The front wheel hub 122 is sleeved on the front shaft sleeve 121. The front shaft sleeve 121 is provided with a keyway 121a adapted to the front synchronization rod 11. The front shaft sleeve 121 is connected to the synchronization rod 333 through a positioning key installed in the keyway 121a to achieve torque transmission. Preferably, the front wheel hub 122 is concentrically arranged with the front shaft sleeve 121. Among them, the front wheel hub 122 can adopt the same structure as the rear wheel hub 222, which will not be repeated here.

[0057] Optionally, the front shaft sleeve 121 is made of 45# steel, and the front wheel hub 122 is made of reinforced nylon. It is understandable that 45# steel has higher strength and deformation resistance than ordinary A3 steel, thereby improving the mechanical properties of the front shaft sleeve 121 to extend the service life of the front shaft sleeve 121. Reinforced nylon can be a mixed material of nylon and glass fiber, so that the front wheel hub 122 has better mechanical properties and is not easily deformed.

[0058] In one embodiment, the outer peripheral wall of the front roller 12 is provided with a PU (polyurethane) layer, that is, the outer peripheral wall of the front roller 12 is provided with a coating layer made of polyurethane material. Since the polyurethane material has good vibration reduction and anti-skid properties, on the one hand, the friction between the front roller 12 and the conveyor belt 30 can be increased to prevent the conveyor belt 30 from sliding against the front roller 12; on the other hand, the vibration and noise generated by the conveyor belt 30 during operation can be reduced.

[0059] In one embodiment, the treadmill 1000 further includes a first driving device 400, which is mounted on the treadmill 200, and the output end of the first driving device 400 is transmission-connected to the rear synchronization rod 21. Specifically, the output end of the driving device drives the rear synchronization rod 21 to rotate around its central axis to drive the two rear rollers 22 to rotate, and the two front rollers 12 are transmission-connected to the two rear rollers 22 through the two conveyor belts 30, and at the same time, the crawler belt 40 rotates with the operation of the two conveyor belts 30.

[0060] Optionally, the first driving device 400 includes a motor, and the treadmill 1000 also includes a control system. The control system is electrically connected to the motor, and the control system is used to control the motor to switch the rotation mode, and the rotation mode includes a first rotation mode and a second rotation mode. In the first rotation mode, the speed of the motor gradually decreases, and in the second rotation mode, the motor rotates forward and reversely within a preset time period. In the motor, it can be a servo motor. Since the servo motor has the characteristics of low speed and high torque, it can provide users with a smooth and smooth use experience.

[0061] In one example, in the first rotation mode, by controlling the motor speed from fast to slow, the running speed of the crawler 40 can be changed from fast to slow, thereby gradually increasing the resistance that the user needs to overcome during exercise, so as to realize the resistance training function of the treadmill 1000. In the second rotation mode, by controlling the motor to rotate forward and reverse alternately, the crawler 40 can rotate forward and reverse alternately in a short time, thereby providing the user with a vibration experience, so that the user can relax the muscles and realize the vibration massage function of the treadmill 1000. In addition, the controller can also control the motor to release the brake when it is not powered on, so that the motor can run with the operation of the crawler 40. As a result, when the user is running or walking on the crawler 40, the running speed of the crawler 40 changes with the change of the user's running frequency, thereby realizing the non-powered training function of the treadmill 1000.

[0062] In one embodiment, Figure 1 and Figure 2 As shown, treadmill 1000 further includes a lifting mechanism 300 .

[0063] Specifically, the lifting mechanism 300 includes a sliding rod 310, a slider 320, a support rod 330, a connecting rod 340 and a second driving device 350. The sliding rod 310 is provided on the treadmill 200. The slider 320 is slidably sleeved on the sliding rod 310. One end of the support rod 330 is hinged to the treadmill 200, and the other end of the support rod 330 is rotatably supported on the ground. One end of the connecting rod 340 is hinged to the slider 320, and the other end of the connecting rod 340 is hinged to the support rod 330. The output end of the second driving device 350 is connected to the slider 320, and is used to drive the slider 320 to slide on the sliding rod 310, while controlling the connecting rod 340 to drive the support rod 330 to rotate relative to the treadmill 200, so as to adjust the inclination angle of the treadmill 200.

[0064] Refer to the following Figure 2 The working principle of the lifting mechanism 300 is described. The slider 320 slides along the length direction of the sliding rod 310 (i.e., the front-back direction in the figure) under the drive of the second driving device 350, and the first end of the connecting rod 340 (i.e., the end of the connecting rod 340 hinged with the slider 320) moves together with the slider 320, so that the connecting rod 340 rotates relative to the support rod 330 with the second end (i.e., the end of the connecting rod 340 hinged with the support rod 330) as the rotation center. During the rotation of the connecting rod 340 relative to the support rod 330, the slider 320 and the sliding rod 310 are displaced in the vertical direction, so that the treadmill 200 is lifted and lowered. Further, during the lifting and lowering of the treadmill 200, the first end of the support rod 330 (i.e., the end of the support rod 330 hinged with the treadmill 200) is lifted and lowered together with the treadmill 200, and the second end of the support rod 330 (i.e., the end of the treadmill 200 supported on the ground) can slide relative to the ground.

[0065] In one example, continue to refer to Figure 2 As shown, when the second driving device 350 drives the slider 320 to slide forward along the sliding rod 310, the first end of the connecting rod 340 moves together with the slider 320, and the connecting rod 340 rotates counterclockwise relative to the support rod 330 with the second end as the rotation center. During the rotation of the connecting rod 340, the slider 320 rises relative to the ground along with the first end of the connecting rod 340, so that the slider 320 drives the sliding rod 310 and the treadmill 200 to move upward. At the same time, since the first end of the support rod 330 rises along the treadmill 200, the support rod 330 rotates relative to the ground, and the second end of the support rod 330 slides backward. On the contrary, when the second driving device 350 drives the slider 320 to slide backward along the sliding rod 310, the lifting mechanism 300 can cause the sliding rod 310 and the treadmill 200 to move downward.

[0066] It should be noted that the treadmill 200 has a support portion supported on the ground, and one end of the support rod 330 hinged to the treadmill 200 is spaced apart from the support portion in the length direction of the treadmill 200. Thus, during operation, the lifting mechanism 300 can drive the treadmill 200 to rotate around the support portion, thereby causing the treadmill 200 to tilt relative to the ground, thereby achieving the climbing function of the treadmill 1000.

[0067] According to the treadmill 1000 of the embodiment of the present application, the slider 320 is driven to slide along the sliding rod 310 by the second driving device 350, and the slider 320 drives the connecting rod 340 to link with the support rod 330, so that the treadmill 200 is tilted relative to the ground. In this way, the tilt of the treadmill 200 can be automatically controlled, and the tilt angle of the treadmill 200 relative to the ground can be adjusted, thereby realizing various fitness functions of the treadmill 1000. Secondly, in the process of driving the slider 320 to slide, the second driving device 350 can transfer part of the driving force for driving the treadmill 200 to tilt to the sliding rod 310 and the support rod 330, thereby, the overall force of the lifting mechanism 300 is uniform, and the impact damage to the second driving device 350 can be reduced, thereby improving the stability of the lifting mechanism 300.

[0068] In one embodiment, Figure 2 As shown, the sliding rod 310 is arranged along the length direction (i.e., the front-to-back direction in the figure) of the treadmill 200. Therefore, the sliding rod 310 can be arranged in the inner space of the treadmill 200 to prevent the sliding rod 310 and the slider 320 from being exposed to the outer space of the treadmill 200, thereby making the structure of the treadmill 1000 more compact and facilitating the improvement of the aesthetics of the treadmill 1000.

[0069] In one embodiment, Figure 2 As shown, the other end of the support rod 330 is supported on the ground through a roller 334. That is, the second end of the support rod 330 is provided with a roller 334 supported on the ground, and the roller 334 can slide along the ground in the front-back direction. Therefore, during the operation of the lifting mechanism 300, the support rod 330 can rotate relative to the ground with the roller 334 as the rotation center, and the second end of the support rod 330 can slide relative to the ground in the front-back direction.

[0070] In one embodiment, Figure 2As shown, the treadmill 200 includes a baffle 210 and a crossbar 220. There are two baffles 210 (one of which is not shown in the figure) and they are arranged opposite to each other in the width direction of the treadmill 200. One end of the support rod 330 is hinged to at least one baffle 210. There are two crossbars 220 and they are connected between the two baffles 210. The two crossbars 220 are arranged opposite to each other along the length direction of the treadmill 200. The sliding rod 310 is connected between the two crossbars 220. As a result, the fixing effect of the sliding rod 310 on the treadmill 200 is better, and the sliding rod 310 is located between the two baffles 210 and the two crossbars 220, that is, the sliding rod 310 is located in the internal space surrounded by the two baffles 210 and the two crossbars 220, thereby further improving the concealment of the sliding rod 310 and the slider 320 in the treadmill 200, thereby making the structure of the treadmill 1000 more compact.

[0071] Optionally, two sliding rods 310 are arranged opposite to each other and arranged side by side along the width direction of the treadmill 200 (i.e., the left-right direction in the figure), and the slider 320 is slidably mounted on the two sliding rods 310. In one example, the slider 320 has through holes corresponding to the two sliding rods 310, and the two sliding rods 310 are respectively inserted into the two through holes, so that the slider 320 can slide along the two sliding rods 310. In this way, the slider 320 can be prevented from rotating relative to the sliding rod 310, thereby improving the stability of the slider 320 during the sliding process.

[0072] Optionally, there are two support rods 330 arranged opposite to each other, and one end of the two support rods 330 is hinged to the two baffles 210 respectively. There are two connecting rods 340, and one end of the two connecting rods 340 is hinged to the two ends of the slider 320 respectively, and the other ends of the two connecting rods 340 are hinged to the two support rods 330 respectively. As a result, the two support rods 330 have a better supporting effect on the treadmill 200, which can prevent the treadmill 200 from tipping over in its width direction, and improve the stability of the treadmill 200 during the tilting process. Preferably, the two support rods 330 can be arranged between the two baffles 210, that is, each support rod 330 is hinged to the inner surface of the corresponding baffle 210. As a result, it can be avoided that the support rods 330 are all exposed to the external space of the treadmill 200, thereby further reducing the external size of the treadmill 1000.

[0073] Optionally, a synchronization rod 333 is provided between the two support rods 330, and both ends of the synchronization rod 333 are respectively connected to the two support rods 330. Thus, the synchronization of the two support rods 330 can be improved, thereby further improving the stability of the treadmill 200.

[0074] In one embodiment, the second driving device 350 is fixed to one of the two cross bars 220, and the output end of the second driving device 350 is configured as a telescopic rod structure. Figure 2In the example shown, the second driving device 350 can be installed on the horizontal plate at the rear side, and the output end of the second driving device 350 is connected to the slider 320 to push the slider 320 to slide along the length direction of the sliding rod 310. Thus, the second driving device 350 can be cleverly installed inside the treadmill 200, thereby preventing the second driving device 350 from being exposed to the external space of the treadmill 200, further improving the structural compactness of the treadmill 1000.

[0075] In one embodiment, Figure 1 and Figure 2 As shown, the support rod 330 includes a first section 331 and a second section 332 connected to the first section 331 , an angle is formed between the first section 331 and the second section 332 with the opening direction being upward, and the connection between the first section 331 and the second section 332 is smoothly transitioned.

[0076] In one example, the first end of the support rod 330 is formed at the end of the second section 332, and the second end of the support rod 330 is formed at the end of the first section 331. The angle between the first section 331 and the second section 332 is an obtuse angle and the opening is upward, so that when the support rod 330 rotates, an escape space can be formed above the second section 332, thereby preventing the second section 332 from interfering with the cross bar 220 located at the front side. In addition, since the first section 331 and the second section 332 are smoothly connected, the structural strength of the support rod 330 at the connection between the first section 331 and the second section 332 can be improved.

[0077] It should be noted that other components of the treadmill 1000 of the embodiment of the present application, such as a display screen, an armrest, etc., may adopt various technical solutions known to those skilled in the art now and in the future.

[0078] According to the technical solution of the embodiment of the present application, by arranging a plurality of protrusions 22a on the rear roller 22, and a plurality of synchronous teeth 22b on the protrusion 22a, the plurality of synchronous teeth 22b on the two rear rollers 22 are arranged relatively, so that the conveyor belts 30 on both sides can be rotated synchronously with the two rear rollers 22, thereby ensuring that the crawler belt 40 connected between the two conveyor belts 30 runs smoothly, and is conducive to reducing the noise during operation. In the description of this specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples without contradiction.

[0079] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0080] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A treadmill, characterized in that: It comprises a treadmill and a transmission mechanism installed on the treadmill, and the transmission mechanism comprises: The front roller comprises a front roller and a front synchronization rod, wherein the front rollers are arranged at both ends of the front synchronization rod; The rear drum comprises a rear roller and a rear synchronization rod, wherein the rear rollers are arranged at both ends of the rear synchronization rod; A conveyor belt is arranged on the front roller and the rear roller located on the same side, and the conveyor belt forms a belt transmission connection with the front roller and the rear roller; A first driving device, the first driving device is installed on the treadmill, and the first driving device is drivingly connected to the rear synchronization rod; A control system, the control system is electrically connected to the motor, the control system is used to control the motor to switch a rotation mode, the rotation mode includes a first rotation mode and a second rotation mode, wherein in the first rotation mode, the rotation speed of the motor gradually decreases, and in the second rotation mode, the motor rotates forward and reverse within a preset time period; Among them, a plurality of protrusions are arranged on the working surface of the rear roller, and the plurality of protrusions are arranged at intervals along the circumference of the rear roller. A plurality of synchronous teeth are arranged on each of the protrusions, and a card groove matched with the synchronous teeth is arranged on the inner side surface of the conveyor belt.

2. The treadmill according to claim 1, characterized in that: The projection shape of the plurality of synchronous teeth on the axial cross section of the rear drum is a sawtooth shape.

3. The treadmill according to claim 1, characterized in that: There are two conveyor belts, which are respectively sleeved on the front roller and the rear roller located on both sides, and a crawler belt is installed between the two conveyor belts.

4. The treadmill according to claim 3, characterized in that: The crawler belt is formed by splicing a plurality of crawler strips, and each crawler strip is fixed between two conveyor belts.

5. The treadmill according to claim 4, characterized in that: The track is made of metal material, and the outer surface of the track is covered with rubber material.

6. The treadmill according to claim 1, characterized in that: A rear retaining ring is arranged on the outer edge of the end surface of one side of the rear roller away from the conveyor belt.

7. The treadmill according to claim 1, characterized in that: A front retaining ring is arranged on the outer edge of the end surface of one side of the front roller away from the conveyor belt.

8. The treadmill according to claim 1, characterized in that: A polyurethane layer is provided on the working surface of the front roller.

9. The treadmill according to any one of claims 1 to 8, characterized in that: It also includes a lifting mechanism, the lifting mechanism comprising: A sliding rod, the sliding rod is arranged on the treadmill; A slider, the slider being slidably mounted on the sliding rod; A support rod, one end of which is hinged to the treadmill, and the other end of which is rotatably supported on the ground; A connecting rod, one end of which is hinged to the slider, and the other end of which is hinged to the support rod; A second driving device, the output end of which is connected to the slider, is used to drive the slider to slide on the sliding rod and control the connecting rod to drive the support rod to rotate relative to the treadmill to adjust the inclination angle of the treadmill.

10. The treadmill according to claim 9, characterized in that: The sliding rod is arranged along the length direction of the treadmill.

11. The treadmill according to claim 9, characterized in that: The other end of the support rod is supported on the ground through a roller.

12. The treadmill according to claim 9, characterized in that: The treadmill comprises: baffles, wherein the number of the baffles is two and the baffles are arranged opposite to each other in the width direction of the treadmill, and the one end of the support rod is hinged to at least one of the baffles; A cross bar, wherein there are two cross bars connected between the two baffles, the two cross bars are arranged opposite to each other along the length direction of the treadmill, and the sliding rod is connected between the two cross bars.

13. The treadmill according to claim 12, characterized in that: The two sliding rods are arranged opposite to each other and arranged side by side along the width direction of the treadmill, and the sliding block is slidably sleeved on the two sliding rods.

14. The treadmill according to claim 13, characterized in that: The supporting rods are two and are arranged opposite to each other, and one end of the two supporting rods is hinged to the two baffles respectively; There are two connecting rods, one ends of the two connecting rods are respectively hinged to the two ends of the sliding block, and the other ends of the two connecting rods are respectively hinged to the two supporting rods.

15. The treadmill according to claim 14, characterized in that: A synchronization rod is arranged between the two support rods, and two ends of the synchronization rod are respectively connected to the two support rods.

16. The treadmill according to claim 12, characterized in that: The second driving device is fixed to one of the two cross bars, and the output end of the second driving device is constructed as a telescopic rod structure.

17. The treadmill according to claim 9, characterized in that: The support rod comprises a first section and a second section connected to the first section. An angle with an opening direction upward is formed between the first section and the second section, and a connection between the first section and the second section is smoothly transitioned.

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