Running surface deflection prevention mechanism on running machine

Abstract

The utility model discloses a running surface deflection prevention mechanism on a running machine, which comprises a frame on the running machine, a front roller and a rear roller are correspondingly arranged at the front end and the rear end of the frame, a crawler belt is arranged on the frame, and the front roller and the rear roller are connected through the crawler belt and drive the crawler belt to operate. A front side guide shaft assembly is arranged on the front roller, a rear side guide shaft assembly is arranged on the rear roller, and the front side guide shaft assembly and the rear side guide shaft assembly make contact with the inner side of the crawler belt. According to the running machine, the technical problem that the track of the running machine in the prior art deflects and the extra shaking phenomenon occurs is solved, and the running machine is more beneficial to meeting the modern use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of treadmills, in particular to a mechanism for preventing a running surface from deflecting on a treadmill. Background Art

[0002] It is known that the current treadmill has a small track deflection amplitude when the trainer's running force is uniform and the speed is low, which is not detectable by human perception. The track deflection in this state meets normal requirements. However, when the trainer's running force is uneven and the speed is high, the track deflection amplitude when the trainer's running force is uneven and the speed is high, the track deflection amplitude when the trainer's running force is uneven and the track edge of the running surface is swaying can be observed by human vision. The track deflection in this state does not meet the requirements of specific usage scenarios. The reason for this result is that the body vibration caused by uneven foot force and high-speed rotation causes the wave-like shaking of the track drooping section. The amplitude of this shaking on both sides of the track drooping section is different, which leads to a height difference in the amplitude on both sides of the track. The height difference in the amplitude on both sides is immediately converted into a left-right position difference of the track on the horizontal plane under high-speed conditions, resulting in a visible left-right swing phenomenon of the running surface during high-speed operation. In addition, due to the uneven force exerted by the trainer's feet perpendicular to the direction of movement of the track, the swing amplitude of the rear track of the treadmill will be greater than the swing amplitude of the front track. This increased swing amplitude will increase the amplitude difference on both sides of the drooping section of the track, further increasing the left and right swing of the track.

[0003] For example, in the prior art, a Chinese utility model patent document with authorization announcement number CN217091923U records a device for preventing a treadmill belt from running off track, comprising a treadmill motor and a treadmill deck, with a running belt arranged between the treadmill decks, and guide wheels for preventing the belt from running off track are arranged on both sides of the running belt between the front end of the running deck and the front roller of the treadmill. When this structure is in use, since the guide wheel is a wheel with a groove in the middle, the side of the running belt located in the groove will form relatively large friction, especially in the case of high-speed operation, it will form additional jitter. Such long-term additional jitter will also affect the loosening or detachment of the treadmill components, and will also make the user prone to injury when running, so it is necessary to make improvements. Utility Model Content

[0004] 1. Technical issues that need to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a mechanism for preventing the running surface of a treadmill from swaying, which solves the technical problems of the swaying phenomenon of the crawler track of the treadmill in the prior art and the occurrence of additional shaking phenomenon, and is more conducive to meeting modern usage needs.

[0006] (II) Technical solutions that need to be adopted

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A treadmill anti-sway mechanism for the running surface comprises a frame on the treadmill, a front roller and a rear roller are respectively arranged at the front and rear ends of the frame, a crawler is arranged on the frame, the front roller and the rear roller are connected by the crawler and drive the crawler to operate, a front guide shaft assembly is arranged on the front roller, and a rear guide shaft assembly is arranged on the rear roller, and the front guide shaft assembly and the rear guide shaft assembly are respectively in contact with the inner side of the crawler.

[0009] Preferably, the crawler track includes a running belt and a screw, a nut and a running strip distributed in parallel with each other, the screw is arranged on the running strip, the screw and the running strip are integrally formed, the screw passes through the running belt, each of the screws is locked with the running belt by the nut, and the screws on the two running belts correspond to each other one by one, the corresponding screws on the two running belts are connected by the running strip, and the inner surface of the running belt is provided with contact with the front guide shaft assembly and the rear guide shaft assembly respectively.

[0010] Preferably, each of the running belts has a certain width, and the inner side of each of the running belts is divided into mounting position one and mounting position two, wherein mounting position one is used to install the screw, and mounting position two is used to contact the front guide shaft assembly and the rear guide shaft assembly respectively.

[0011] Preferably, there is at least one front guide shaft assembly and at least one rear guide shaft assembly.

[0012] Preferably, there are two front guide shaft assemblies and two rear guide shaft assemblies.

[0013] Preferably, the front guide shaft assembly includes a front guide belt frame arranged on the front roller, a front bearing 1 is arranged on the upper end surface of the front guide belt frame, the front bearing 1 and the front guide belt frame are locked together by a front locking piece, and the front bearing 1 contacts the inner side of the crawler track; the rear guide shaft assembly includes a rear guide belt frame arranged on the rear roller, a rear bearing 1 is arranged on the upper end surface of the rear guide belt frame, the rear bearing 1 and the rear guide belt frame are locked together by a rear locking piece, and the rear bearing 1 contacts the inner side of the crawler track.

[0014] Preferably, the front belt guide frame is fixedly connected to the front roller via a front nut; and the rear belt guide frame is fixedly connected to the rear roller via a rear nut.

[0015] Preferably, the front locking member includes a front gasket and a front screw, and the front gasket is arranged between the front screw and an upper end surface of the front bearing; the rear locking member includes a rear gasket and a rear screw, and the rear gasket is arranged between the rear screw and an upper end surface of the rear bearing.

[0016] Preferably, the front roller includes a front axle core arranged on the front end of the frame, the front axle core is provided with two front bearings distributed in pairs, each of the two front bearings is provided with a front roller wheel, and the front guide shaft assembly is arranged on the front axle core between adjacent front roller wheels; the rear roller includes a rear axle core arranged on the rear end of the frame, the rear axle core is provided with two rear bearings distributed in pairs, each of the two rear bearings is provided with a rear roller wheel, and the rear guide shaft assembly is arranged on the rear axle core between adjacent rear roller wheels.

[0017] (III) Technical effects to be achieved

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] Firstly, the utility model is provided with a front guide shaft assembly on the front roller, and a rear guide shaft assembly on the rear roller, and the front guide shaft assembly and the rear guide shaft assembly are respectively in contact with the inner side of the crawler track. The utility model solves the technical problems of the crawler track sway phenomenon and the additional shaking phenomenon of the treadmill in the prior art by having the front guide shaft assembly and the rear guide shaft assembly respectively in contact with the inner side of the crawler track, and is more conducive to meeting modern usage needs.

[0020] Secondly, the front guide shaft assembly of the utility model includes a front guide belt frame arranged on the front roller, the upper end surface of the front guide belt frame is provided with a front bearing, the front bearing and the front guide belt frame are locked together by a front locking piece, and the front bearing contacts the inner side of the crawler track; the rear guide shaft assembly includes a rear guide belt frame arranged on the rear roller, the upper end surface of the rear guide belt frame is provided with a rear bearing, the rear bearing and the rear guide belt frame are locked together by a rear locking piece, and the rear bearing contacts the inner side of the crawler track. Such front guide belt frame and rear guide shaft assembly have a simple structure and are easy to manufacture and install, which greatly reduces the difficulty of production and also reduces the investment in production costs, is more conducive to mass production, and is also conducive to large-scale promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the utility model.

[0022] Figure 2 It is a three-dimensional schematic diagram of the utility model.

[0023] Figure 3 It is a schematic diagram of the utility model when viewed from above.

[0024] Figure 4 It is a schematic diagram of the frame structure of the utility model.

[0025] Figure 5 It is a schematic structural diagram of the front roller and front guide shaft assembly of the utility model.

[0026] Figure 6 It is a schematic diagram of the structure of the front guide shaft assembly of the utility model.

[0027] Figure 7 It is a schematic diagram of the exploded view of the front guide shaft assembly of the utility model.

[0028] Figure 8 It is a schematic structural diagram of the rear roller and rear guide shaft assembly of the utility model.

[0029] Fig. 9 It is a schematic diagram of the exploded view of the rear guide shaft assembly of the utility model.

[0030] Fig.10 It is a schematic diagram of the crawler structure of the utility model.

[0031] In the figure: 1, frame; 2, front roller; 3, rear roller; 4, crawler track; 5, front guide shaft assembly; 6, rear guide shaft assembly; 21, front axle core; 22, front bearing 2; 23, front roller wheel; 31, rear axle core; 32, rear bearing 2; 33, rear roller wheel; 51, front guide belt rack; 52, front bearing 1; 53, front locking piece; 54, front nut; 41, running belt; 42, screw; 43, nut; 44, running strip; 61, rear guide belt rack; 62, rear bearing 1; 63, rear locking piece; 64, rear nut; 411, mounting position 1; 412, mounting position 2; 531, front gasket; 532, front screw; 631, rear gasket; 632, rear screw. DETAILED DESCRIPTION

[0032] In the description of the present utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0036] Example 1: See Figure 1 , Figure 2 and Figure 3 A treadmill running surface anti-sway mechanism includes a frame 1 on the treadmill, a front roller 2 and a rear roller 3 are correspondingly arranged at the front and rear ends of the frame 1, a crawler 4 (mainly composed of a running belt and a running strip) is arranged on the frame 1, the front roller 2 and the rear roller 3 are connected by the crawler 4 and drive the crawler 4 to operate, a front guide shaft assembly 5 is arranged on the front roller 2, and a rear guide shaft assembly 6 is arranged on the rear roller 3, the front guide shaft assembly 5 and the rear guide shaft assembly 6 are respectively in contact with the inner side of the crawler 4, so as to prevent the crawler 4 from running off.

[0037] Embodiment 2: It can be explained on the basis of embodiment 1, such as Fig.10 As shown, the crawler track 4 includes a running belt 41 and a screw 42, a nut 43 and a running strip 44 which are parallel to each other. The running strip 44 is provided with a screw 42, and the screw 42 and the running strip 44 are formed as one piece. The screw (42) passes through the running belt 41. Each running belt 41 is provided with screws 42 at even intervals. Each screw 42 is locked with the running belt 41 by a nut 43. The screws 42 on the two running belts 41 correspond to each other one by one. The corresponding screws 42 on the two running belts 41 are connected by the running strip 44. The screw 42 and the running strip 44 are formed as one piece. The inner surface of the running belt 41 is provided with contact portions which are in contact with the front guide shaft assembly 5 and the rear guide shaft assembly 6 respectively. This helps to prevent the crawler track 4 from running off during the rotation process on the frame 1. It should be noted that each running belt 41 has a certain width, and the inner side of each running belt 41 is divided into a mounting position 1 411 and a mounting position 2 412. The mounting position 1 411 is used to install the screw rod 42, and the mounting position 2 412 is used to contact the front guide shaft assembly 5 and the rear guide shaft assembly 6 respectively, which neither affects the normal rotation of the crawler belt 4 nor affects the deviation of the front guide shaft assembly 5 and the rear guide shaft assembly 6 during the rotation restriction process.

[0038] Embodiment 3: It can be described on the basis of Embodiment 1 or Embodiment 2, such as Figure 5 , Figure 6 and Figure 7 As shown, there is at least one front guide shaft assembly 5 and at least one rear guide shaft assembly 6, and in this embodiment, there are two front guide shaft assemblies 5 and two rear guide shaft assemblies 6. This arrangement is reasonable and is conducive to preventing the crawler 4 from running off during the rotation process on the frame 1. The front guide shaft assembly 5 includes a front guide belt frame 51 arranged on the front roller 2, and a front bearing 1 52 is arranged on the upper end surface of the front guide belt frame 51. The front bearing 1 52 and the front guide belt frame 51 are locked together by a front locking member 53. The front bearing 1 52 contacts the inner side of the crawler 4. This structure is simple and easy to implement. It is to be noted that the front guide belt frame 51 and the front roller 2 are fixedly connected by a front nut 54, which is convenient for the installation and removal of the front guide belt frame 51 and the front roller 2. It is also to be noted that the front locking member 53 includes a front gasket 531 and a front screw 532. The front gasket 531 is arranged between the front screw 532 and the upper end surface of the front bearing 1 52, which is easy to implement.

[0039] Among them, Figure 8 and Fig. 9As shown, the rear guide shaft assembly 6 includes a rear guide frame 61 disposed on the rear drum 3, and a rear bearing 1 62 is disposed on the upper end surface of the rear guide frame 61. The rear bearing 1 62 and the rear guide frame 61 are locked together by a rear locking member 63. The rear bearing 1 62 contacts the inner side of the crawler 4. This structure is simple and easy to implement. It is to be noted that the rear guide frame 61 and the rear drum 3 are fixedly connected by a rear nut 64, which is convenient for the installation and removal of the rear guide frame 61 and the rear drum 3. It is also to be noted that the rear locking member 63 includes a rear gasket 631 and a rear screw 632. The rear gasket 631 is disposed between the rear screw 632 and the upper end surface of the rear bearing 1 62, which is easy to implement.

[0040] Embodiment 4: It can be described on the basis of Embodiment 1, Embodiment 2 or Embodiment 3, such as Figure 5 and Figure 8 As shown, the front roller 2 includes a front axle core 21 arranged on the front end of the frame 1, and the front axle core 21 is provided with two front bearings 22 distributed in pairs, each of the front bearings 22 is provided with a front roller wheel 23, and a front guide shaft assembly 5 is provided on the front axle core 21 between adjacent front roller wheels 23; the rear roller 3 includes a rear axle core 31 arranged on the rear end of the frame 1, and the rear axle core 31 is provided with two rear bearings 32 distributed in pairs, each of the rear bearings 32 is provided with a rear roller wheel 33, and a rear guide shaft assembly 6 is provided on the rear axle core 31 between adjacent rear roller wheels 33. This arrangement is reasonable, which is conducive to the installation of the front guide shaft assembly 5 and the rear guide shaft assembly 6, and better prevents the deviation from occurring during the rotation of the crawler track 4.

[0041] In the utility model, when the crawler 4 is rotating at a high speed, the deflection caused by the uneven foot force of the trainer at the rear end of the treadmill is contacted by the rear bearing 1 62 of the rear guide shaft assembly 6 at the mounting position 2 412 of the running belt 41, thereby eliminating the limiting effect and reducing the influence on the fluctuation of the sagging section of the crawler 4. The deflection amplitude at the horizontal position of the running surface, which is converted by the uneven amplitude of the trainer's foot force and the vibration of the whole treadmill on both sides of the sagging section below the running surface, is contacted by the front bearing 1 52 of the front guide shaft assembly 5 at the mounting position 2 412 of the running belt 41, thereby eliminating the limiting effect.

[0042] The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part adopt conventional means such as mature bolts and rivets in the existing technology. The internal components of the treadmill all adopt conventional models in the existing technology, and its internal structure belongs to the existing technology structure. Workers can complete normal operation of it according to the existing technical manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and no specific description is given here.

[0043] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process changes made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the utility model patent.

Claims

1. A treadmill anti-sway mechanism for a running surface, comprising a frame (1) on the treadmill, wherein a front roller (2) and a rear roller (3) are respectively arranged at the front and rear ends of the frame (1), a crawler (4) is arranged on the frame (1), the front roller (2) and the rear roller (3) are connected by the crawler (4) and drive the crawler (4) to operate, and the characteristics are: The front roller (2) is provided with a front guide shaft assembly (5), and the rear roller (3) is provided with a rear guide shaft assembly (6). The front guide shaft assembly (5) and the rear guide shaft assembly (6) are respectively in contact with the inner side of the crawler (4).

2. The anti-sway mechanism for the running surface of a treadmill according to claim 1, characterized in that: The crawler belt (4) comprises a running belt (41) and a screw rod (42), a nut (43) and a running strip (44) which are arranged in parallel with each other. The running strip (44) is provided with the screw rod (42). The screw rod (42) and the running strip (44) are integrally formed. The screw rod (42) passes through the running belt (41). Each of the screw rods (42) and the running belt (41) are locked by the nut (43). The screw rods (42) on the two running belts (41) correspond to each other one by one. The corresponding screw rods (42) on the two running belts (41) are connected by the running strip (44). The inner surface of the running belt (41) is provided with screws which are in contact with the front guide shaft assembly (5) and the rear guide shaft assembly (6) respectively.

3. The anti-sway mechanism for the running surface of a treadmill according to claim 2, characterized in that: Each of the running belts (41) has a certain width, and the inner side of each of the running belts (41) is divided into a mounting position one (411) and a mounting position two (412), wherein the mounting position one (411) is used to mount the screw rod (42), and the mounting position two (412) is used to contact the front guide shaft assembly (5) and the rear guide shaft assembly (6) respectively.

4. The anti-sway mechanism for the running surface of a treadmill according to claim 1, 2 or 3, characterized in that: There is at least one front guide shaft assembly (5) and at least one rear guide shaft assembly (6).

5. The anti-sway mechanism for the running surface of a treadmill as claimed in claim 4, characterized in that: There are two front guide shaft assemblies (5) and two rear guide shaft assemblies (6).

6. The anti-sway mechanism for the running surface of a treadmill according to claim 1, 2 or 5, characterized in that: The front guide shaft assembly (5) comprises a front guide belt frame (51) arranged on the front roller (2), the upper end surface of the front guide belt frame (51) is provided with a front bearing 1 (52), the front bearing 1 (52) and the front guide belt frame (51) are locked together by a front locking member (53), and the front bearing 1 (52) contacts the inner side of the crawler belt (4); the rear guide shaft assembly (6) comprises a rear guide belt frame (61) arranged on the rear roller (3), the upper end surface of the rear guide belt frame (61) is provided with a rear bearing 1 (62), the rear bearing 1 (62) and the rear guide belt frame (61) are locked together by a rear locking member (63), and the rear bearing 1 (62) contacts the inner side of the crawler belt (4).

7. The mechanism for preventing the running surface from deflecting on a treadmill as claimed in claim 6, characterized in that: The front guide belt rack (51) is fixedly connected to the front roller (2) via a front nut (54); and the rear guide belt rack (61) is fixedly connected to the rear roller (3) via a rear nut (64).

8. The mechanism for preventing the running surface from deflecting on a treadmill as claimed in claim 6, characterized in that: The front locking member (53) comprises a front gasket (531) and a front screw (532), wherein the front gasket (531) is arranged between the front screw (532) and the upper end surface of the front bearing (52); the rear locking member (63) comprises a rear gasket (631) and a rear screw (632), wherein the rear gasket (631) is arranged between the rear screw (632) and the upper end surface of the rear bearing (62).

9. The anti-sway mechanism for the running surface of a treadmill as claimed in claim 1, 2, 3, 7 or 8, characterized in that: The front roller (2) comprises a front axle core (21) arranged at the front end of the frame (1), the front axle core (21) is provided with two front bearings (22) distributed in pairs, each of the two front bearings (22) is provided with a front roller wheel (23), and the front guide shaft assembly (5) is arranged on the front axle core (21) between adjacent front roller wheels (23); the rear roller (3) comprises a rear axle core (31) arranged at the rear end of the frame (1), the rear axle core (31) is provided with two rear bearings (32) distributed in pairs, each of the two rear bearings (32) is provided with a rear roller wheel (33), and the rear guide shaft assembly (6) is arranged on the rear axle core (31) between adjacent rear roller wheels (33).

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