Transmission mechanism of running machine

Abstract

The utility model discloses a transmission mechanism of a treadmill, which belongs to the technical field of treadmills, and comprises two groups of side frames, one side of each side frame is fixedly connected with a first support frame, the first support frame is rotatably provided with a driving rotating rod, the outer wall of the driving rotating rod is fixedly connected with a driving roller, the driving roller is provided with a running belt, and the running belt is connected with the driving rotating rod. A first supporting frame is fixedly connected to one side of the side frame, a second supporting frame is fixedly connected to the other side of the side frame, a driven rotating rod is rotatably connected to the second supporting frame, a driven roller is fixedly connected to the driven rotating rod, and a positioning frame is further fixedly connected to one side of the side frame. The running belt is arranged in the running machine, so that the running belt is more stable during running, the use effect of the running machine can be improved, two sets of magnetic wheels are arranged for transmission, and noise generated when the running machine works can be reduced in a non-contact transmission mode.

Description

Technical Field

[0001] The utility model relates to the technical field of treadmills, in particular to a transmission mechanism of a treadmill. Background Art

[0002] A treadmill is a piece of sports equipment used for running exercises at home and in gyms. It has become a popular fitness tool with a wide speed regulation range and a belt drive working mechanism. The belt drive has a simple structure, can mitigate load impact, and runs smoothly and noiselessly. Although a mechanical treadmill can achieve self-tracking of speed, the damage it causes to the muscles and joints of the exerciser cannot be ignored.

[0003] The transmission mechanism of the existing treadmill includes a driving motor, a rotating shaft, an active roller, a driven roller, and a running belt. The active roller is installed on the output shaft of the driving motor through the rotating shaft, and then when the active roller rotates, the driven roller is driven to rotate through the running belt, so that the running belt can continue to rotate.

[0004] The above technical conditions still have defects: the above driven roller is completely driven by the running belt. Since the user runs on the running belt when it is working, it has a certain impact force, which can easily reduce the transmission effect of the running belt on the driven roller, making it impossible for the running belt to rotate more stably, thereby reducing the use effect of the treadmill.

[0005] Based on this, the utility model designs a transmission mechanism of a treadmill to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a transmission mechanism for a treadmill to solve the above technical problems.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission mechanism of a treadmill, comprising two groups of side frames, one side of the side frame is fixedly connected to a first support frame, an active rotating rod is rotatably arranged on the first support frame, an active roller is fixedly connected to the outer wall of the active rotating rod, a running belt is arranged on the active roller, the other side of the side frame is fixedly connected to a second support frame, the second support frame is rotatably connected to a driven rotating rod, the driven rotating rod is fixedly connected to a driven roller, one side of the side frame is also fixedly connected to a positioning frame, a driving motor is fixedly connected to the positioning frame, an output shaft of the driving motor is coaxially fixed with the active rotating rod, and a transmission shaft is also arranged between the active rotating rod and the driven rotating rod.

[0008] By adopting the above technical solution, the power on the active rotating rod is transmitted to the driven rotating rod through the transmission shaft, thereby increasing the rotation effect of the transmission roller, thereby making the running belt more stable during operation.

[0009] Preferably, a No. 1 magnetic wheel and a No. 2 magnetic wheel are fixedly connected to both ends of the transmission shaft, a No. 3 magnetic wheel matched with the No. 1 magnetic wheel is arranged on the active rotating rod, and a No. 4 magnetic wheel matched with the No. 2 magnetic wheel is arranged on the driven rotating rod.

[0010] By adopting the above technical solution and transmitting through a contactless magnetic wheel, the noise generated by conventional contact transmission can be reduced.

[0011] Preferably, two groups of stabilizing seats are fixedly connected to the side frame, and the transmission shaft is rotatably connected inside the two groups of stabilizing seats.

[0012] By adopting the above technical solution, the transmission shaft can be made more stable when rotating.

[0013] Preferably, both groups of the side frames are provided with lifting and lowering adjustment mechanisms, and a tensioning rod is rotatably connected between the two groups of the lifting and lowering adjustment mechanisms.

[0014] By adopting the above technical solution, the tightness of the running belt can be adjusted.

[0015] Preferably, the third magnetic wheel is placed vertically with the first magnetic wheel, and there is a 1-2mm gap between the third magnetic wheel and the first magnetic wheel, and the second magnetic wheel is placed vertically with the fourth magnetic wheel, and there is a 1-2mm gap between the second magnetic wheel and the fourth magnetic wheel.

[0016] By adopting the above technical solution, the transmission effect of the magnetic wheel is best at a gap of 1-2mm.

[0017] To sum up, the present application has the following beneficial technical effects: by setting up a transmission shaft, the transmission pressure of the running belt can be greatly reduced, thereby making the running belt more stable during operation, which can increase the use effect of the treadmill, and then by setting up two sets of magnetic wheels for transmission, the contactless transmission method can reduce the noise of the treadmill during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0020] Figure 2 It is a schematic top view of the structure of this embodiment;

[0021] Figure 3 This is a schematic diagram of the structure of removing the running belt of this embodiment;

[0022] Figure 4 Schematic diagram of the structure of the transmission shaft in this embodiment.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Side frame; 2. First support frame; 3. Active rotating rod; 4. Active roller; 5. Running belt; 6. Second support frame; 7. Driven rotating rod; 8. Driven roller; 9. Positioning frame; 10. Driving motor; 11. No. 3 magnetic wheel; 12. Stable seat; 13. Transmission shaft; 14. No. 1 magnetic wheel; 15. No. 2 magnetic wheel; 16. No. 4 magnetic wheel; 17. Lifting and adjusting mechanism; 18. Tensioning rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The following is combined with Figure 1-4 This application is described in further detail.

[0027] Reference Figure 1 and Figure 2 A transmission mechanism of a treadmill comprises two groups of side frames 1, one side of the side frame 1 is fixedly connected to a first supporting frame 2, an active rotating rod 3 is rotatably arranged on the first supporting frame 2, an active roller 4 is fixedly connected to the outer wall of the active rotating rod 3, a running belt 5 is arranged on the active roller 4, a second supporting frame 6 is fixedly connected to the other side of the side frame 1, a driven rotating rod 7 is rotatably connected to the second supporting frame 6, a driven roller 8 is fixedly connected to the driven rotating rod 7, the active roller 4 can drive the driven roller 8 to rotate through the running belt 5, a positioning frame 9 is also fixedly connected to one side of the side frame 1, a driving motor 10 is fixedly connected to the positioning frame 9, the output shaft of the driving motor 10 is coaxially fixed with the active rotating rod 3, so that the active rotating rod 3 can rotate stably, and a transmission shaft 13 is also arranged between the active rotating rod 3 and the driven rotating rod 7, so as to increase the stability of the rotation of the driven roller 8.

[0028] Reference Figure 3 and Figure 4, the two ends of the transmission shaft 13 are fixedly connected with a No. 1 magnetic wheel 14 and a No. 2 magnetic wheel 15, respectively, the active rotating rod 3 is provided with a No. 3 magnetic wheel 11 adapted to the No. 1 magnetic wheel 14, and the driven rotating rod 7 is provided with a No. 4 magnetic wheel 16 adapted to the No. 2 magnetic wheel 15. Transmission is carried out through the magnetic wheels, so that the driven roller 8 can rotate well, which is more stable than completely driving the driven roller 8 to rotate by the running belt 5, thereby increasing the use effect of the treadmill, the No. 3 magnetic wheel 11 is vertically placed with the No. 1 magnetic wheel 14, and there is a 1-2mm gap between the No. 3 magnetic wheel 11 and the No. 1 magnetic wheel 14, the No. 2 magnetic wheel 15 and the No. 4 magnetic wheel 16 are vertically placed, and there is a 1-2mm gap between the No. 2 magnetic wheel 15 and the No. 4 magnetic wheel 16, through contactless transmission, the noise during use can be reduced.

[0029] Reference Figure 3 Referring to the figure, two groups of stabilizing seats 12 are fixedly connected to the side frame 1, and the transmission shaft 13 is rotatably connected inside the two groups of stabilizing seats 12, which can increase the stability of the transmission shaft 13 when rotating. A lifting adjustment mechanism 17 is provided on both groups of side frames 1, and a tensioning rod 18 is rotatably connected between the two groups of lifting adjustment mechanisms 17, which can adjust the tightness of the running belt 5.

[0030] The implementation principle of this embodiment is: when in use, the driving motor 10 drives the active rotating rod 3 to rotate, so that the active roller 4 rotates, and at the same time the transmission shaft 13 is driven to rotate by the third magnetic wheel 11 and the first magnetic wheel 14, and then the second magnetic wheel 15 and the fourth magnetic wheel 16 drive the driven rotating rod 7 to rotate, so that the driven roller 8 rotates, so that the running belt 5 can rotate, so that the transmission effect of the running belt 5 on the driven roller 8 is reduced, the pressure of the running belt 5 is reduced, and then the use effect of the treadmill is increased.

[0031] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission mechanism for a treadmill, comprising two sets of side frames (1), characterized in that: A first support frame (2) is fixedly connected to one side of the side frame (1), an active rotating rod (3) is rotatably arranged on the first support frame (2), an active roller (4) is fixedly connected to the outer wall of the active rotating rod (3), a running belt (5) is arranged on the active roller (4), a second support frame (6) is fixedly connected to the other side of the side frame (1), a driven rotating rod (7) is rotatably connected to the second support frame (6), a driven roller (8) is fixedly connected to the driven rotating rod (7), a positioning frame (9) is also fixedly connected to one side of the side frame (1), a driving motor (10) is fixedly connected to the positioning frame (9), an output shaft of the driving motor (10) is coaxially fixed with the active rotating rod (3), and a transmission shaft (13) is also arranged between the active rotating rod (3) and the driven rotating rod (7).

2. The transmission mechanism of a treadmill according to claim 1, characterized in that: The two ends of the transmission shaft (13) are respectively fixedly connected with a first magnetic wheel (14) and a second magnetic wheel (15); the active rotating rod (3) is provided with a third magnetic wheel (11) adapted to the first magnetic wheel (14); and the driven rotating rod (7) is provided with a fourth magnetic wheel (16) adapted to the second magnetic wheel (15).

3. The transmission mechanism of a treadmill according to claim 1, characterized in that: Two groups of stabilizing seats (12) are fixedly connected to the side frame (1), and the transmission shaft (13) is rotatably connected inside the two groups of stabilizing seats (12).

4. The transmission mechanism of a treadmill according to claim 1, characterized in that: Both sets of the side frames (1) are provided with lifting and lowering adjustment mechanisms (17), and a tensioning rod (18) is rotatably connected between the two sets of the lifting and lowering adjustment mechanisms (17).

5. The transmission mechanism of a treadmill according to claim 2, characterized in that: The third magnetic wheel (11) and the first magnetic wheel (14) are placed vertically, and there is a gap of 1-2 mm between the third magnetic wheel (11) and the first magnetic wheel (14).

6. The transmission mechanism of a treadmill according to claim 2, characterized in that: The second magnetic wheel (15) and the fourth magnetic wheel (16) are placed vertically, and there is a gap of 1-2 mm between the second magnetic wheel (15) and the fourth magnetic wheel (16).

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