Anti-deviation structure for running belt of running machine

Abstract

The utility model provides a running machine running belt anti-deviation structure which comprises an anti-deviation assembly fixed to a running plate support or a running plate, the anti-deviation assembly comprises a fixing plate, a rotating shaft and a rotating cylinder capable of rotating relative to the rotating shaft, an included angle alpha is formed between the rotating shaft and the fixing plate and larger than 90 degrees, the rotating cylinder abuts against the side portion of an annular running belt, and the rotating cylinder is connected with the side portion of the annular running belt. And the drum drives the annular running belt to keep a centered state relative to the running plate. According to the anti-deviation device, the rotatable anti-deviation assembly is arranged, the rotary drum in the anti-deviation assembly can rotate in situ and abut against the side portion of the annular running belt all the time, the annular running belt is limited, and it is guaranteed that the annular running belt is in central transmission and prevented from deviating.

Description

Technical Field

[0001] The utility model belongs to the technical field of treadmills, and particularly relates to an anti-deviation structure for a treadmill running belt. Background Art

[0002] A treadmill generally includes a frame and two rollers rotatably arranged on the frame. A running belt is wound around the two groups of rollers. The rollers can be inertial rollers or driven by a motor to rotate. However, no matter which driving method is used, due to the fact that the force exerted by human feet cannot achieve complete balance, the running belt is prone to deviation during the rotation process.

[0003] If no adjustment is made for a long time, it will damage the running belt, which will affect the normal use of the treadmill to a lesser extent and may even cause safety accidents and more serious consequences. Content of the Utility Model

[0004] In view of the above-mentioned defects of the prior art, the utility model provides an anti-deviation structure for a treadmill running belt, including: an anti-deviation component fixed to the running board bracket or the running board. The anti-deviation component includes a fixing plate, a rotating shaft, and a rotating cylinder rotatable relative to the rotating shaft. An included angle α is formed between the rotating shaft and the fixing plate, and the included angle α is greater than 90°. The rotating cylinder abuts against the side of the annular running belt, and the rotating cylinder drives the annular running belt to keep centered relative to the running board.

[0005] Preferably, a shaft hole for the rotating shaft to pass through is arranged in the rotating cylinder, and sinking grooves are arranged at both ends of the rotating cylinder, and bearings are tightly connected in the sinking grooves.

[0006] Preferably, the bearing includes an inner ring, an outer ring, and rolling elements arranged between the inner ring and the outer ring. The rotating cylinder is tightly connected to the outer ring, and an anti-disengagement buckle is connected between the rotating shaft and the inner ring.

[0007] Preferably, the anti-disengagement buckle includes an elastic ring piece with an opening. Pulling ears are arranged at both ends of the opening of the elastic ring piece, and annular grooves for the elastic ring piece to be embedded are arranged at both ends of the rotating shaft.

[0008] Preferably, a shaft hole for the rotating shaft to pass through is arranged in the rotating cylinder, and a sinking groove is arranged at the bottom of the rotating cylinder, and a bearing is tightly connected in the sinking groove. The bearing includes an inner ring, an outer ring, and rolling elements arranged between the inner ring and the outer ring. The rotating cylinder is tightly connected to the outer ring, and an installation platform is arranged at the top of the rotating shaft. The installation platform and the inner ring are connected by a fixing pin.

[0009] Preferably, the rolling element is one of a ball, a cylindrical roller, and a tapered roller.

[0010] Preferably, the range of the included angle α is 100°-110°.

[0011] Preferably, the fixing plate sequentially includes a connecting section and a supporting section, and a stepped portion is arranged between the connecting section and the supporting section.

[0012] Preferably, the anti-deviation components are symmetrically arranged on both sides of the running board bracket or the running board.

[0013] Preferably, a friction-reducing coating is provided on the outer wall of the rotating cylinder.

[0014] The beneficial effects of the present utility model are as follows:

[0015] By providing a rotatable anti-deviation component, the rotating cylinder in the anti-deviation component can rotate in place and always abut against the side of the endless running belt, thereby limiting the endless running belt and ensuring that the endless running belt is driven in the middle to prevent it from deviating. Description of the Drawings

[0016] Figure 1 Schematic diagram of a treadmill equipped with an anti-deviation component provided by the present embodiment.

[0017] Figure 2 Schematic assembly diagram of the anti-deviation component provided by the present embodiment.

[0018] Figure 3 Exploded view of Embodiment 1 of the anti-deviation component provided by the present embodiment.

[0019] Figure 4 Schematic diagram of the rotating cylinder provided by the present utility model.

[0020] Figure 5 Schematic diagram of anti-disengagement provided by the present utility model.

[0021] Figure 6 Cross-sectional view of Embodiment 1 of the anti-deviation component provided by the present utility model.

[0022] Figure 7 Exploded view of Embodiment 2 of the anti-deviation component provided by the present embodiment.

[0023] Figure 8 Cross-sectional view of Embodiment 2 of the anti-deviation component provided by the present utility model. Detailed Embodiments

[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Here, it should also be noted that in order to avoid obscuring the present utility model with unnecessary details, only the structures and / or processing steps closely related to the solution of the present utility model are shown in the drawings, while other details less related to the present utility model are omitted.

[0026] In addition, it should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Embodiment 1:

[0028] As Figures 1-6 shown, the present utility model discloses an anti-deviation structure for a treadmill running belt, comprising: an anti-deviation assembly 100 fixed to a running board bracket 200 or a running board 300. The anti-deviation assembly 100 includes a fixing plate 110, a rotating shaft 120 and a rotating cylinder 130 rotatable relative to the rotating shaft 120. An included angle α is formed between the rotating shaft 120 and the fixing plate 110, and the included angle α is greater than 90°. The rotating cylinder 130 abuts against the side of the annular running belt 400, and the rotating cylinder 130 drives the annular running belt 400 to remain centered relative to the running board 300. It can be understood that, since the included angle α formed between the rotating shaft 120 and the fixing plate 110 is greater than 90°, annular running belts 400 of different widths can be adapted, avoiding the need to adjust the installation position of the anti-deviation assembly 100 when installing annular running belts 400 of different widths.

[0029] In this embodiment, a shaft hole 131 for the rotating shaft 120 to pass through is provided in the rotating cylinder 130. Sinking grooves 132 are provided at both ends of the rotating cylinder 130, and bearings 140 are tightly connected in the sinking grooves 132. The bearings 140 are fixedly embedded in the sinking grooves 132, reducing the frictional force during the rotation of the rotating cylinder 130 and reducing frictional noise.

[0030] In this embodiment, the bearing 140 includes an inner ring 142, an outer ring 141 and rolling elements 143 provided between the inner ring 142 and the outer ring 141. The rotating cylinder 130 is tightly connected to the outer ring 141, and an anti-release buckle 150 is connected between the rotating shaft 120 and the inner ring 142 to prevent the rolling elements 143 from disengaging from the rotating shaft 120 under the action of gravity or centrifugal force during rotation.

[0031] In this embodiment, the anti-release buckle 150 includes an elastic ring plate having an opening 151. Pulling ears 152 are provided at both ends of the opening 151 of the elastic ring plate, facilitating the opening of the elastic ring plate for installation. Annular grooves 121 for the elastic ring plate to be embedded are provided at both ends of the rotating shaft 120, playing a role in assembly limit.

[0032] In this embodiment, the rolling element 143 is one of a ball, a cylindrical roller and a tapered roller.

[0033] In this embodiment, the range of the included angle α is 100° to 110°, preferably 105°.

[0034] In this embodiment, the fixing plate 110 successively includes a connecting section 111 and a supporting section 112, and a stepped portion 113 is arranged between the connecting section 111 and the supporting section 112. The connecting section 111 is fixedly connected to the running board bracket 200 or the running board 300, and the rotating shaft 120 is connected to the supporting section 112. Since an included angle α is formed between the rotating shaft 120 and the fixing plate 110, the stepped portion 113 is arranged between the connecting section 111 and the supporting section 112, so that the supporting section 112 is elevated to prevent the rotating cylinder 130 from directly contacting the running board bracket 200 or the running board 300.

[0035] In this embodiment, the anti-deviation components are symmetrically arranged on both sides of the running board bracket or the running board, that is, on the left and right sides, to prevent the endless running belt 400 from deviating to the left or right.

[0036] In this embodiment, in order to further reduce the friction between the endless running belt 400 and the anti-deviation component 100 and ensure a silent effect, an anti-friction coating can be arranged on the outer wall of the rotating cylinder 130.

[0037] Embodiment 2:

[0038] As Figures 7-8 shown, the difference between Embodiment 2 and Embodiment 1 lies in the different connection methods of the rotating cylinder 130 and the bearing 140. In this embodiment, a shaft hole 131 for the rotating shaft 120 to pass through is arranged in the rotating cylinder 130, a sinking groove 132 is arranged at the bottom of the rotating cylinder 130, a bearing 140 is tightly connected in the sinking groove 132, the bearing 140 includes an inner ring 142, an outer ring 141 and rolling elements 143 arranged between the inner ring 142 and the outer ring 141, the rotating cylinder 130 is tightly connected to the outer ring 141, and an installation platform 122 is arranged at the top of the rotating shaft 120, and the installation platform 122 is connected to the inner ring 142 through a fixing pin 123.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An anti-deviation structure for a treadmill running belt, characterized in that Comprising: An anti-deviation component fixed to the running board bracket or the running board. The anti-deviation component includes a fixing plate, a rotating shaft, and a rotating cylinder that can rotate relative to the rotating shaft. An included angle α is formed between the rotating shaft and the fixing plate, and the included angle α is greater than 90°. The rotating cylinder abuts against the side of the annular running belt, and the rotating cylinder drives the annular running belt to remain centered relative to the running board.

2. The anti-deviation structure of a treadmill running belt according to claim 1, characterized in that, An axial hole for the rotating shaft to pass through is provided in the rotating cylinder, and sink grooves are provided at both ends of the rotating cylinder, and bearings are tightly connected in the sink grooves.

3. A treadmill running belt anti-deviation structure according to claim 2, characterized in that, The bearing includes an inner ring, an outer ring, and rolling elements arranged between the inner ring and the outer ring. The rotating cylinder is tightly connected to the outer ring, and an anti-disengagement buckle is connected between the rotating shaft and the inner ring.

4. A treadmill running belt anti-deviation structure according to claim 3, characterized in that, The anti-disengagement buckle includes an elastic ring piece with an opening. Pulling ears are provided at both ends of the opening of the elastic ring piece, and annular grooves for embedding the elastic ring piece are provided at both ends of the rotating shaft.

5. The anti-deviation structure of the treadmill running belt according to claim 1, characterized in that, An axial hole for the rotating shaft to pass through is provided in the rotating cylinder, and a sink groove is provided at the bottom of the rotating cylinder, and a bearing is tightly connected in the sink groove. The bearing includes an inner ring, an outer ring, and rolling elements arranged between the inner ring and the outer ring. The rotating cylinder is tightly connected to the outer ring, and a mounting table is provided at the top of the rotating shaft, and the mounting table is connected to the inner ring through a fixing pin.

6. A treadmill running belt anti-deviation structure according to claim 3 or 5, characterized in that The rolling element is one of a ball, a cylindrical roller, and a tapered roller.

7. The anti-deviation structure of a treadmill running belt according to claim 1, wherein, The range of the included angle α is 100° to 110°.

8. A treadmill running belt anti-deviation structure according to any one of claims 1-5 or 7, characterized in that, The fixing plate sequentially includes a connecting section and a supporting section, and a stepped portion is provided between the connecting section and the supporting section.

9. The anti-deviation structure of a treadmill running belt according to claim 8, characterized in that, The anti-deviation components are symmetrically arranged on both sides of the running board bracket or the running board.

10. A treadmill running belt anti-deviation structure according to claim 9, characterized in that, A friction-reducing coating is provided on the outer wall of the rotating cylinder.

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