Treadmill capable of preventing edge lifting of a running belt

Abstract

The utility model relates to the field of running machine discloses a kind of running machine capable of preventing running belt edge warping, including side beam, running belt, further include limiting roller group, limiting roller group includes elastic suspension mechanism, first roller, second roller, first roller, second roller are arranged up and down, the edge of running belt is clamped between first roller and second roller, first roller is rotatable and liftable by elastic suspension mechanism and is installed on side beam, second roller is rotatably installed on side beam.The running machine is arranged up and down and cooperates first roller and second roller, and corresponding limiting structure is set on roller and running belt, can be overall limiting from multiple directions to the edge of running belt, effectively prevent running belt from appearing edge warping phenomenon in operation process, improve the operation stability and security of running machine.

Description

Technical Field

[0001] This utility model relates to the field of treadmills, and in particular to a treadmill that can prevent the running belt from curling up. Background Technology

[0002] Treadmills are a common type of fitness equipment, widely used in homes, gyms, and other places. During the use of a treadmill, the running belt is a key component, and its operating condition directly affects the user's experience and safety.

[0003] After prolonged use, the edges of the running belt on existing treadmills are prone to warping. Warping not only affects the transmission stability between the running belt and the rollers, causing the treadmill to run unevenly, producing noise and vibration, but it can also cause the running belt to rub against other parts of the treadmill, accelerating wear and tear, shortening its lifespan, and even posing safety hazards. Utility Model Content

[0004] The purpose of this invention is to provide a treadmill that can prevent the running belt from curling up, thereby solving the technical problem that the edges of the running belt are prone to curling up in the prior art.

[0005] To solve the above problems, the present invention provides a treadmill that can prevent the running belt from warping, which adopts the following technical solution: it includes a side beam, a running belt, and a limiting roller assembly. The limiting roller assembly includes an elastic suspension mechanism, a first roller, and a second roller. The first roller and the second roller are arranged vertically. The edge of the running belt is clamped between the first roller and the second roller. The first roller is rotatably and vertically mounted on the side beam through the elastic suspension mechanism, and the second roller is rotatably mounted on the side beam.

[0006] Furthermore, the first roller has an annular recessed area on its side wall facing the running belt, and the second roller has a protrusion that matches the annular recessed area. The second roller and the first roller are fitted with a clearance.

[0007] Furthermore, the second roller is provided with limiting grooves on both sides of the protrusion, and guide portions are formed at both ends of the second roller so that the cross-section of the second roller has a "convex-concave-convex" structure.

[0008] Furthermore, the lower surface of the edge of the running belt is provided with a groove that matches the protrusion, and the upper surface of the edge of the running belt is provided with a support protrusion that matches the annular recessed area.

[0009] Furthermore, the surface of the first roller is provided with a buffer layer, and the surface of the second roller is provided with a wear-resistant layer.

[0010] Furthermore, each side beam is provided with at least three sets of limiting rollers at intervals along its length, located in the front roller area, the rear roller area, and the middle area of ​​the running belt, respectively.

[0011] Furthermore, the elastic suspension mechanism includes a support frame and an elastic element. The two ends of the first roller are provided with mounting shafts. The support frame is provided with a guide groove. The mounting shaft is movably inserted into the guide groove. The elastic element abuts against the guide groove and the mounting shaft. The support frame is fixedly connected to the side beam.

[0012] Furthermore, the elastic element is a compression spring or an elastic rubber pad, and the preload provided by the elastic element is perpendicular to the plane of the running belt.

[0013] Furthermore, the side beam is provided with lubricating oil channels, and the oil outlets of the lubricating oil channels correspond to the first roller and the second roller.

[0014] The beneficial effects of the treadmill provided by this utility model, which can prevent the running belt from curling up, are:

[0015] 1. By setting up first and second rollers arranged vertically and cooperating with each other, and setting corresponding limiting structures on the rollers and running belt, this treadmill can comprehensively limit the edge of the running belt from multiple directions, effectively preventing the running belt from warping during operation, and improving the running stability and safety of the treadmill.

[0016] 2. The first roller is rotatably and height-adjustably mounted on the side beam via an elastic suspension mechanism. The elastic element can automatically adjust the position and preload of the first roller according to the tension of the running belt, so that the first roller always applies appropriate pressure to the edge of the running belt, achieving adaptive clamping of the edge of the running belt and ensuring effective prevention of edge warping under different usage conditions. Attached Figure Description

[0017] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0018] Figure 1 This is a partial cross-sectional view of a treadmill according to the present invention, which can prevent the running belt from curling up. Figure 1 ;

[0019] Figure 2 for Figure 1 A magnified view of the structure at point A in the middle;

[0020] Figure 3This is a partial cross-sectional view of a treadmill according to the present invention, which can prevent the running belt from curling up. Figure 2 .

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Side beam; 11. Lubrication oil passage;

[0023] 2. Running belt; 21. Groove; 22. Supporting convex surface;

[0024] 3. Limiting roller assembly; 31. Elastic suspension mechanism; 311. Support frame; 312. Guide groove; 313. Elastic element; 32. First roller; 321. Annular recessed area; 322. Mounting shaft; 33. Second roller; 331. Protrusion; 332. Limiting groove; 333. Guide part. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0027] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0028] This utility model provides a treadmill that can prevent the running belt from curling up, such as... Figures 1 to 3 As shown, it includes a side beam 1, a running belt 2, and a limiting roller assembly 3. The limiting roller assembly 3 includes an elastic suspension mechanism 31, a first roller 32, and a second roller 33. The first roller 32 and the second roller 33 are arranged vertically. The edge of the running belt 2 is clamped between the first roller 32 and the second roller 33. The first roller 32 is rotatably and vertically mounted on the side beam 1 through the elastic suspension mechanism 31, and the second roller 33 is rotatably mounted on the side beam 1.

[0029] By adopting the above technical solution, the first roller 32 can adaptively adjust according to the actual situation of the running belt 2 under the action of the elastic suspension mechanism 31, and always maintain effective clamping on the edge of the running belt 2.

[0030] In this embodiment, the first roller 32 has an annular recessed area 321 on the side wall facing the running belt 2, and the second roller 33 has a protrusion 331 that matches the annular recessed area 321. The second roller 33 and the first roller 32 are in clearance fit, which further enhances the limiting effect on the edge of the running belt 2 and prevents the running belt 2 from shifting or warping in the horizontal direction.

[0031] In this embodiment, limiting grooves 332 are provided on both sides of the protrusion 331 on the second roller 33, and guide portions 333 are formed at both ends of the second roller 33, so that the cross-section of the second roller 33 has a "convex-concave-convex" structure. The limiting grooves 332 can laterally limit the edge of the running belt 2, preventing the edge of the running belt 2 from sliding to both sides during operation; the guide portions 333 help guide the running belt 2 to run smoothly, reducing friction and wear between the running belt 2 and the second roller 33.

[0032] In this embodiment, the lower edge surface of the running belt 2 is provided with a groove 21 that matches the protrusion 331, and the upper edge surface of the running belt 2 is provided with a supporting protrusion 22 that matches the annular recessed area 321. This allows the edge of the running belt 2 to fit better with the first roller 32 and the second roller 33, further improving the limiting effect and ensuring that the running belt 2 will not warp during operation.

[0033] In this embodiment, a buffer layer is provided on the surface of the first roller 32. In other embodiments, the buffer layer may be made of materials such as rubber or silicone. During the operation of the running belt 2, the buffer layer can provide flexible pressing force, absorb some vibration and impact force, reduce rigid collisions between the running belt 2 and the first roller 32, avoid excessive friction leading to wear of the running belt 2, and reduce noise.

[0034] In this embodiment, a wear-resistant layer is provided on the surface of the second roller 33. In other embodiments, the wear-resistant layer may be made of a high-hardness alloy material or a specially treated coating. Since the second roller 33 is in direct contact with the running belt 2 and bears a large frictional force, the wear-resistant layer can effectively improve the wear resistance of the second roller 33, reduce wear, and extend its service life.

[0035] In this embodiment, each side beam 1 is provided with at least three sets of limiting rollers 3 at intervals along the length direction, which are located near the front roller area, the rear roller area and the middle area of ​​the running belt 2 of the treadmill, respectively. They can fully limit the edge of the running belt 2 from different positions of the treadmill, ensuring that the running belt 2 remains flat throughout the entire operation and effectively preventing the occurrence of edge warping.

[0036] In other embodiments, both the first roller 32 and the second roller 33 are rotatably mounted via bearings.

[0037] In this embodiment, the elastic suspension mechanism 31 includes a support frame 311 and an elastic element 313. Mounting shafts 322 are provided at both ends of the first roller 32. A guide groove 312 is provided on the support frame 311, and the mounting shafts 322 movably pass through the guide groove 312. The elastic element 313 abuts against the guide groove 312 and the mounting shaft 322. The support frame 311 is fixedly connected to the side beam 1. In this embodiment, the preload provided by the elastic element 313 is perpendicular to the plane of the running belt 2. This allows the first roller 32 to move up and down within the guide groove 312 under the action of the elastic element 313, achieving elastic clamping of the edge of the running belt 2.

[0038] In this embodiment, the elastic element 313 is a compression spring or an elastic rubber pad. The compression spring or elastic rubber pad has good elasticity and recovery performance, and can automatically adjust the pretension according to the tension of the running belt 2, so as to ensure that the first roller 32 always applies appropriate pressure to the edge of the running belt 2, so that the running belt 2 will not be affected by excessive pressure, nor will it be unable to effectively prevent the edge from curling due to insufficient pressure.

[0039] In this embodiment, a lubrication channel 11 is provided on the side beam 1, and the oil outlet of the lubrication channel 11 corresponds to the first roller 32 and the second roller 33. The lubrication channel 11 can provide lubricating oil to the first roller 32 and the second roller 33, reduce the friction between the rollers and the running belt 2, reduce wear, and improve the operating efficiency and stability of the treadmill.

[0040] This utility model discloses a treadmill that prevents the running belt 2 from warping. When in use, the treadmill is started, and the running belt 2 begins to run driven by the front and rear rollers. During the running belt 2's operation, the first roller 32, under the action of the elastic suspension mechanism 31, automatically adjusts its position and preload according to the tension of the running belt 2, consistently applying appropriate pressure to the edge of the running belt 2, clamping the edge of the running belt 2 between the first roller 32 and the second roller 33. Simultaneously, the annular recess 321 on the first roller 32, the protrusion 331 and limiting groove 332 on the second roller 33, as well as the groove 21 and supporting protrusion 22 on the edge of the running belt 2, cooperate to limit the edge of the running belt 2 from multiple directions, preventing the running belt 2 from warping. Furthermore, lubricating oil can be provided to the first roller 32 and the second roller 33 through the lubrication channel 11 on the side beam 1, reducing friction between the rollers and the running belt 2, lowering wear and noise, and ensuring the treadmill operates smoothly and quietly.

[0041] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0042] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A treadmill capable of preventing the edge of a running belt from being raised, comprising a side beam, a running belt, characterized in that, It also includes a limiting roller assembly, which includes an elastic suspension mechanism, a first roller, and a second roller. The first roller and the second roller are arranged vertically, and the edge of the running belt is clamped between the first roller and the second roller. The first roller is rotatably and vertically mounted on the side beam through the elastic suspension mechanism, and the second roller is rotatably mounted on the side beam.

2. The treadmill capable of preventing the running belt from being warped according to claim 1, wherein, The first roller has an annular recessed area on the side wall facing the running belt, and the second roller has a protrusion that matches the annular recessed area. The second roller and the first roller are fitted with a clearance.

3. The treadmill capable of preventing the running belt from being warped according to claim 2, wherein, Limiting grooves are provided on both sides of the protrusion on the second roller, and guide portions are formed at both ends of the second roller so that the cross-section of the second roller has a "convex-concave-convex" structure.

4. The treadmill capable of preventing the running belt from being warped according to claim 3, wherein, The lower edge of the running belt has a groove that matches the protrusion, and the upper edge of the running belt has a support protrusion that matches the annular recessed area.

5. The treadmill capable of preventing the running belt from being warped according to any one of claims 1 to 4, characterized in that, The surface of the first roller is provided with a buffer layer, and the surface of the second roller is provided with a wear-resistant layer.

6. A treadmill capable of preventing the running belt from curling up according to any one of claims 1 to 4, characterized in that, Each side beam is provided with at least three sets of limiting rollers at intervals along its length, located in the front roller area, the rear roller area, and the middle area of ​​the running belt, respectively.

7. The treadmill capable of preventing the running belt from being warped according to any one of claims 1 to 4, characterized in that, The elastic suspension mechanism includes a support frame and an elastic element. The first roller has mounting shafts at both ends. The support frame has a guide groove, and the mounting shafts are movably inserted into the guide grooves. The elastic element abuts against the guide grooves and the mounting shafts. The support frame is fixedly connected to the side beam.

8. The treadmill capable of preventing the running belt from being warped according to claim 7, wherein, The elastic element is a compression spring or an elastic rubber pad, and the preload provided by the elastic element is perpendicular to the plane of the running belt.

9. The treadmill capable of preventing the running belt from being warped according to any one of claims 1 to 4, characterized in that, The side beam is equipped with lubricating oil channels, and the oil outlets of the lubricating oil channels correspond to the first roller and the second roller.

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