Double-running-belt electric treadmill and application
By designing a dual-belt electric treadmill, using an independent belt system and adjusting the speed and direction through a controller, the problem that existing treadmills cannot achieve asynchronous movement of both legs and two people is solved, and a variety of training modes are realized.
Patent Information
- Application Number
- CN202511177247.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2025-09-26
AI Technical Summary
Existing treadmills use a single running belt structure, which cannot achieve asynchronous movement of both legs and joint movement of two people, and cannot meet the needs of cadence difference training and rehabilitation asymmetric training.
A dual-belt electric treadmill is designed. It adopts two independent running belt systems. Each running belt is driven by a motor. The speed and direction are independently adjusted by the controller. Synchronous, asynchronous and unilateral braking modes are supported.
It realizes asynchronous movement of both legs and joint movement of two people, meets the needs of step frequency difference training and rehabilitation asymmetric training, and enhances the functional diversity of the treadmill.
Smart Images

Figure CN120695403A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of fitness equipment processing and production, in particular to the field of treadmill processing and production, and discloses a double-belt electric treadmill and its application. Background Art
[0002] Existing treadmills generally use a single-belt structure, with a single motor driving the front and rear rollers to propel the entire belt. This limitation is that it only provides constant speed or unidirectional variable speed running, and cannot achieve asynchronous movement of the legs (such as cadence differential training or rehabilitation asymmetry training), nor can it allow two people to exercise together. Summary of the Invention
[0003] In order to solve the above technical problems, a double-belt electric treadmill and its application are provided.
[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a dual-belt treadmill, including a running deck, with a first running belt system and a second running belt system arranged above the running deck; the movement modes between the first running belt system and the second running belt system include a synchronous mode, an asynchronous mode with independently adjustable speed, a reverse mode and a unilateral braking mode.
[0005] According to the present invention, further, a controller for controlling the first treadmill system and the second treadmill system is included, and the controller controls the motion modes of the first treadmill system and the second treadmill system.
[0006] According to the present invention, further, the running board is divided into a first installation area for installing the first treadbelt system and a second installation area for installing the second treadbelt system in parallel.
[0007] According to the present invention, further, the first treadmill system includes a first treadmill arranged in a first installation area, a first driving roller and a first driven roller are respectively provided at both ends of the first treadmill, and the first treadmill surrounds the first driving roller and the first driven roller; the first motor provides a rotational driving force to the first driving roller; the second treadmill system includes a second treadmill arranged in a second installation area, a second driving roller and a second driven roller are respectively provided at both ends of the second treadmill, the second motor provides a rotational driving force to the second driving roller, and the second treadmill surrounds the second driving roller and the second driven roller.
[0008] According to the present invention, further, a gap of 10-30 mm is provided between the first treadmill and the second treadmill.
[0009] According to the present invention, it further includes an operating panel electrically connected to the controller, and the operating panel is provided with a first adjustment unit for adjusting the speed of the first motor and a second adjustment unit for adjusting the speed of the second motor; the controller receives instructions from the operating panel and outputs signals to independently adjust the speeds and / or directions of the two motors.
[0010] According to the present invention, further, a protective cover structure having an accommodating cavity is included, and the first motor and the second motor are installed in the accommodating cavity of the protective cover structure and are respectively connected to the corresponding active rollers.
[0011] Another aspect of the present invention provides an application of a dual-belt treadmill. The synchronous mode includes a forward mode and a reverse mode, and the first treadmill system and the second treadmill system move in the same direction and at the same speed; in the asynchronous mode: the first treadmill system and the second treadmill system move in the same direction but at different speeds, and the controller controls each treadmill system separately; in the unilateral braking mode: one side of the treadmill system decelerates to achieve unilateral braking.
[0012] Compared with the prior art, the beneficial effect of the present invention is that: by setting up independent dual running belt systems, the present invention can independently adjust the transmission speed of any running belt, and realize differentiated control of running speed and direction through two sets of parallel running belt systems.
[0013] The present invention can realize asynchronous movement of both legs (such as step frequency difference training and rehabilitation asymmetry training), and can also perform joint movement for two people. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of a double-belt electric treadmill according to the present invention;
[0015] Figure 2 for Figure 1 AA cross-sectional structural diagram;
[0016] Figure 3 for Figure 1 BB cutaway axonometric diagram;
[0017] Figure 4 This is a schematic structural diagram of a dual-belt electric treadmill of the present invention (excluding the first and second treadmill belts);
[0018] Figure 5 This is a schematic diagram of electronic component connections according to the present invention.
[0019] Among them, 100-support frame, 200-running board, 300-first running belt, 310-first active roller, 320-first driven roller, 330-first motor, 400-second running belt, 410-second active roller, 420-second driven roller, 430-second motor, 500-controller, 600-operation panel, 610-first adjustment unit, 620-second adjustment unit, 700-protective cover structure. DETAILED DESCRIPTION
[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.
[0021] like Figures 1 to 5 As shown, the embodiment of the present application discloses a dual-belt treadmill, including a support frame 100, a running board 200 is laid on the top of the support frame 100, and a first installation area for installing a first running belt 300 and a second installation area for installing a second running belt 400 are provided above the running board 200 in parallel and separated; a first active roller 310 and a first driven roller 320 are respectively provided at both ends of the first running belt 300, a first motor 330 provides a rotational driving force to the first active roller 310, and the first running belt 300 surrounds the first active roller 310 and the first driven roller 320. ; A second active roller 410 and a second driven roller 420 are respectively provided at both ends of the second treadmill 400, and the second motor 430 provides a rotational driving force to the second active roller 410, and the second treadmill 400 surrounds the second active roller 410 and the second driven roller 420; it also includes a controller 500 for independently controlling the two treadmills, and the controller 500 can realize a synchronous mode in which the dual treadmills run at the same speed and in the same direction; an asynchronous mode in which the dual treadmills run in the same direction but the speed is independently adjustable; a reverse mode in which the dual treadmills move in the opposite direction; and a unilateral braking mode in which the unilateral treadmill decelerates and provides resistance.
[0022] The first motor 330 drives the first active roller 310 to drive the first treadmill 300 to run; the second motor 430 drives the second active roller 410 to drive the second treadmill 400 to run.
[0023] A gap of 10-30 mm is provided between the first treadmill 300 and the second treadmill 400. The gap is provided so that the two treadmills do not touch each other during operation and can move independently and smoothly.
[0024] In this embodiment of the present application, an operating panel 600 is further provided, electrically connected to the controller 500. The operating panel 600 includes a first adjustment unit 610 for adjusting the speed of the first motor 330 and a second adjustment unit 620 for adjusting the speed of the second motor 430. The speeds of the two motors and / or the rotational speeds thereof are adjusted according to the desired motion, thereby controlling the speeds of the two treadmills. Preferably, the controller 500 receives commands from the operating panel 600 via a CAN bus and outputs PWM signals to independently adjust the speeds and / or direction of the two motors.
[0025] In this embodiment of the present application, the first motor 330 and the second motor 430 are brushless servo motors with a power of 1.5-3kW, each fixed to the bottom of the corresponding mounting area. Preferably, a protective cover structure 700 having a receiving cavity is fixedly mounted on the bottom of the support frame 100. The position of the protective cover structure 700 corresponds to the position of the two active rollers. The first motor 330 and the second motor 430 are installed in the receiving cavity of the protective cover structure 700 and are respectively connected to the corresponding active rollers; preferably, a belt connection is used.
[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A dual-belt treadmill, comprising a running deck, characterized in that: A first treadmill system and a second treadmill system are provided above the running board; the motion modes between the first treadmill system and the second treadmill system include a synchronous mode, an asynchronous mode with independently adjustable speed, a reverse mode and a unilateral braking mode.
2. The dual-belt treadmill according to claim 1, wherein: The invention also includes a controller for controlling the first treadmill system and the second treadmill system, wherein the controller controls the motion modes of the first treadmill system and the second treadmill system.
3. A dual-belt treadmill according to claim 1, characterized in that: The running board is divided into a first installation area for installing a first treadmill system and a second installation area for installing a second treadmill system in parallel.
4. A dual-belt treadmill according to claim 3, characterized in that: The first treadmill system includes a first treadmill arranged in a first installation area, a first driving roller and a first driven roller are respectively provided at both ends of the first treadmill, and the first treadmill surrounds the first driving roller and the first driven roller; the first motor provides a rotational driving force to the first driving roller; the second treadmill system includes a second treadmill arranged in a second installation area, a second driving roller and a second driven roller are respectively provided at both ends of the second treadmill, the second motor provides a rotational driving force to the second driving roller, and the second treadmill surrounds the second driving roller and the second driven roller.
5. A dual-belt treadmill according to claim 4, characterized in that: A gap of 10-30 mm is provided between the first treadmill and the second treadmill.
6. A dual-belt treadmill according to claim 4, characterized in that: It also includes an operating panel electrically connected to the controller, on which a first adjusting unit for adjusting the speed of the first motor and a second adjusting unit for adjusting the speed of the second motor are provided; the controller receives instructions from the operating panel and outputs signals to independently adjust the speeds and / or directions of the two motors.
7. The dual-belt treadmill according to claim 4, wherein: It also includes a protective cover structure with an accommodating cavity. The first motor and the second motor are installed in the accommodating cavity of the protective cover structure and are respectively connected to the corresponding active rollers.
8. An application of a double-belt treadmill, characterized by: The synchronous mode includes forward mode and reverse mode, and the first running belt system and the second running belt system move in the same direction and at the same speed; in the asynchronous mode: the first running belt system and the second running belt system move in the same direction but at different speeds, and the controller controls each running belt system individually; in the unilateral braking mode: one side of the running belt system decelerates to achieve unilateral braking.