Double lifting mechanism of a treadmill and treadmill

Abstract

Double lifting mechanism of a treadmill, which is applied below a treadmill body (1), characterized in that the double lifting mechanism comprises: a first lifting mechanism (2) designed for mounting on a first end of the treadmill body (1) and comprising a support rod (21) and a telescopic drive (23), wherein during assembly a first end of the support rod (21) is designed for rotatable connection with a lower part of the treadmill body (1) and a second end of the support rod (21) is designed for resting on the floor, wherein a first end of the telescopic drive (23) is rotatably connected to the support rod (21), wherein a second end of the telescopic drive (23) is rotatably connected to the treadmill body (1), wherein the telescopic drive (23) drives the support rod (21) such that it rotates about a pivot point of the first end of the support rod (21); and a second lifting mechanism (3) designed for mounting on a second end of the treadmill body (1) and comprising an adjusting block (31) for rotatable coupling on the second end of the treadmill body (1), wherein at least two support surfaces with different radii are distributed around a center of rotation on an outer edge of the adjusting block (31); wherein the first lifting mechanism (2) and the second lifting mechanism (3) are independently adjustable.

Description

[0001] Embodiments of the present invention relate to the field of sports equipment, in particular to a double lifting mechanism of a treadmill and a treadmill.

[0002] Treadmills are becoming increasingly popular among consumers as cardio equipment. A treadmill can train a user's physical strength, endurance, and cardiopulmonary function, thus achieving the goal of scientific training. Most treadmills currently on the market have an incline adjustment function. Users can adjust the incline of the treadmill's drive and adjust the exercise intensity. However, existing treadmills have a single adjustment method, resulting in a single gear for incline adjustment.

[0003] Embodiments of the present invention provide a double lift mechanism of a treadmill and a treadmill in which an incline adjustment of the treadmill occurs at both ends of the treadmill, thereby enabling multi-slope adjustment of the treadmill.

[0004] In a first aspect of the embodiments of the present invention, there is provided a double lifting mechanism of a treadmill applied below a treadmill body and comprising: a first lifting mechanism configured for mounting at a first end of the treadmill body and comprising a support rod and a telescopic drive, wherein, upon mounting, a first end of the support rod is configured for rotatable connection to a lower part of the treadmill body and a second end of the support rod is configured for contact with the ground, wherein a first end of the telescopic drive is rotatably connected to the support rod, wherein a second end of the telescopic drive is rotatably connected to the treadmill body, wherein the support rod is driven by the telescopic drive to rotate about a pivot point of the first end of the support rod; and a second lifting mechanism adapted to be mounted on a second end of the treadmill body and comprising an adjustment block for rotatable coupling to the second end of the treadmill body, wherein at least two support surfaces with different radii are distributed around a center of rotation on an outer edge of the adjustment block; wherein the first lifting mechanism and the second lifting mechanism are independently adjustable.

[0005] The first lifting mechanism comprises two support rods, wherein the two support rods are firmly connected to one another via a connecting frame, wherein the second end of the telescopic drive is rotatably connected to the connecting frame, wherein the connecting frame is driven by the telescopic drive such that the support rod can be rotated about the pivot point of the first end of the support rod.

[0006] In some embodiments, a roller is mounted on the second end of the support rod, wherein when the support rod rotates about the pivot point of the first end, rolling friction is generated between the second end of the support rod and the ground via the roller.

[0007] In some embodiments, a pivot block is provided on the adjustment block, wherein a first through-hole is provided on the pivot block; wherein the second lifting mechanism further comprises a connecting piece and a pivot shaft, wherein a second through-hole is provided at a first end of the connecting piece, wherein a second end of the connecting piece is fixedly connected to the treadmill body; wherein the pivot shaft is guided through the first through-hole and the second through-hole to pivotally connect the connecting piece to the adjustment block.

[0008] In some embodiments, two groups of second lifting mechanisms are provided, wherein during assembly the axes of the two rotary shafts of two second lifting mechanisms are on an identical straight line.

[0009] In some embodiments, the second lifting mechanism further comprises a limit rod, the limit rod being configured to be mounted on the lower part of the treadmill body, a limit groove being provided on the adjustment block, wherein, when the adjustment block rotates until one of the support surfaces performs the support, a rod body part of the limit rod lies in the limit groove.

[0010] In some embodiments, the overall shape of the adjustment block is triangular, wherein the support surfaces comprise a first support surface and a second support surface, each provided at two vertices of the adjustment block, such that a triangle with three unequal sides is formed by the center of rotation of the adjustment block, the center of the first support surface and the center of the second support surface.

[0011] The overall shape of the adjustment block is a right-angled triangle, with the first support surface located at the right angle, wherein, when the first support surface is in contact with the ground for support, a hypotenuse of the adjustment block opposite to the first support surface abuts a lower surface of the treadmill body; wherein, when the second support surface is in contact with the ground for support, a right-angled side of the adjustment block opposite to the second support surface abuts the lower surface of the treadmill body.

[0012] In some embodiments, several non-slip strips are provided on the support surface.

[0013] In a further aspect of the embodiments of the present invention, a treadmill is provided which comprises a treadmill body, wherein a double lifting mechanism of a treadmill according to one of the solutions described above is provided on a lower part of the treadmill body.

[0014] From the analysis, it can be seen that the present invention discloses a double lifting mechanism of a treadmill and a treadmill, wherein a lifting mechanism is provided at each end of the lower part of the treadmill body, wherein both the first lifting mechanism and the second lifting mechanism can independently perform an inclination adjustment of the running platform of the treadmill; wherein the adjustment block of the second lifting mechanism is provided with at least two support surfaces, each of the support surfaces having a different distance from the rotating shaft, thereby enabling adjustment of different support heights;wherein a limit rod is mounted on a lower part of a body of the second lifting mechanism, wherein a second groove is provided on the adjustment block, wherein, when the second support surface is in contact with the ground, the rod body part of the limit rod lies in the second groove to limit further rotation of the adjustment block to the limit rod side and maintain support stability; wherein anti-slip strips are provided on each support surface of the adjustment block to improve the support stability of the adjustment block in the current support position;

[0015] Compared with the prior art, the double lifting mechanism of a treadmill according to the present invention can realize a variety of gears of the treadmill for incline adjustment to suit different exercise needs of users.

[0016] The drawings, which form part of the present disclosure, are intended to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are intended to explain the invention and do not unduly limit the invention. In the drawings: Fig. 1 shows a first schematic perspective structural view of a treadmill with a double lifting mechanism in an embodiment of the present invention; Fig. 2 shows a two-schematic perspective structural view of the treadmill with a double lifting mechanism in the embodiment of the present invention; Fig. 3 is a schematic structural view of a first lifting mechanism in the embodiment of the present invention; Fig. 4 is a schematic exploded view of the structure of the first lifting mechanism in the embodiment of the present invention; Fig. 5 is a schematic structural view showing a first state for inclination adjustment of the treadmill with a double lifting mechanism in the embodiment of the present invention; Fig. 6 is a schematic structural view showing a second state for inclination adjustment of the treadmill with a double lifting mechanism in the embodiment of the present invention; Fig. Fig. 7 is a schematic structural view of a third state for adjusting the inclination of the treadmill with a double lifting mechanism in the embodiment of the present invention, and Fig. 8 is a schematic structural view showing a fourth state for inclination adjustment of the treadmill with a double lifting mechanism in the embodiment of the present invention.

[0017] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. Various examples are provided to illustrate the present disclosure rather than to limit it. Indeed, it will be apparent to those skilled in the art that modifications and variations may be made to the present invention without departing from the scope or spirit of the present invention. For example, features shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. It is therefore desired that the present invention cover such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0018] In the description of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal," "transverse," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "apex," "bottom," etc., is based on the orientation or positional relationship shown in the drawings and is provided merely to facilitate the description of the present invention, but does not require that the present application be configured or operated in a particular orientation. Therefore, it should not be construed as limiting the present application. The terms "connect," "attach," and "provide" used in the present disclosure should be construed in a broader sense.For example, it may be a fixed connection or a detachable connection; it may be a direct connection or an indirect connection via an intermediate component; it may also be a wired electrical connection, a radio connection, or a signal connection via wireless communication. A person of ordinary skill in the art can determine the specific meaning of the above terms depending on specific situations.

[0019] One or more examples of the present invention are illustrated in the accompanying drawings. In the detailed description, numeric and alphabetic reference numerals are used to refer to features in the drawings. Like or similar reference numerals in the drawings and description have been used to refer to like or similar parts of the present disclosure. As used herein, terms "first," "second," "third," and the like may be used interchangeably to distinguish one component from another. However, such terms are not intended to represent the position or importance of any individual component.

[0020] As in Fig. 1 to 4, according to an embodiment of the present invention, there is provided a double lifting mechanism of a treadmill which is arranged below a treadmill body 1 and which comprises a first lifting mechanism 2 arranged at a front side of the treadmill body 1 and a second lifting mechanism 3 arranged at a rear side of the treadmill body 1, wherein both the first lifting mechanism 2 and the second lifting mechanism 3 can perform an inclination adjustment of the running platform of the treadmill independently of each other.

[0021] The first lifting mechanism 2 comprises two support rods 21 of the same shape and size, wherein first ends of the two support rods 21 are each pivotally connected to a lower part of the treadmill body 1, wherein second ends of the two support rods 21 are each used for contact with the ground. A connecting frame 22 is provided between the two support rods 21, wherein the connecting frame 22 is fixedly connected to the support rods 21 on both sides, such that the connecting frame 22 drives the two support rods 21 for synchronous movement. The first lifting mechanism 2 further comprises a telescopic drive 23, wherein a first end of the telescopic drive 23 is fixedly mounted to the treadmill body 1 and a second end of the telescopic drive is rotatably connected to the connecting frame 22.The second end of the telescopic drive 23 drives the connecting frame 22 such that the support rod 21 can be rotated about a pivot point of the first end of the support rod 21.

[0022] In some embodiments, the telescopic drive 23 includes a motor and a lead screw mechanism connected to an output of the motor, the motor driving the lead screw mechanism to extend or contract to adjust an angle between the support rod 21 and the ground, thereby adjusting the height of a front end of the walking platform of the treadmill to the ground and enabling adjustment of the inclination of the walking platform of the treadmill.

[0023] In some embodiments, a roller 24 is mounted on the second end of the support rod 21. When the support rod 21 rotates about the pivot point of the first end, the roller 24 creates rolling friction between the second end of the support rod 21 and the ground, thereby facilitating tilt adjustment.

[0024] The second lifting mechanism 3 comprises two adjustment blocks 31, each of which is pivotally connected to the treadmill body 1. When the two adjustment blocks 31 are mounted on the lower part of the treadmill body 1, the rotating shafts of the two adjustment blocks 31 lie on an identical straight line. Thus, the rear end of the treadmill body 1 is supported at the same height by the two adjustment blocks 31. A first support surface 315 and a second support surface 316 are provided on the edge of the adjustment block 31, each of which is distributed with different radii around the pivot point, so that when different support surfaces come into contact with the ground, the height of a rear end of the treadmill platform relative to the ground is different. This enables adjustment of the angle of inclination of the treadmill platform.

[0025] In some embodiments, a plurality of non-slip strips are provided on the support surface of the adjustment block 31 to increase the friction force between the support surface of the adjustment block 31 and the floor.

[0026] In some embodiments, the overall shape of the adjustment block 31 is triangular, with the first support surface 315 and the second support surface 316 each located at two vertices of the adjustment block 31, so that a triangle with three unequal sides is formed by the axis center of the first through-hole 313, the center point of the first support surface 315 and the center point of the second support surface 316.

[0027] In some embodiments, the overall shape of the adjustment block 31 is a right-angled triangle, with the first support surface 315 located at the right angle. When the first support surface 315 is in contact with the ground for support, a hypotenuse of the adjustment block 31 opposite the first support surface 315 abuts a lower surface of the treadmill body 1. When the second support surface 316 is in contact with the ground for support, a right-angled side of the adjustment block 31 opposite the second support surface 316 abuts the lower surface of the treadmill body 1. This improves the stability of the support provided by the adjustment block 31.

[0028] In some embodiments, a first groove 311 is provided on a first side of the adjustment block 31, wherein a pivot block 312 is provided within the first groove 311, wherein a first through-hole 313 is provided on the pivot block 312. The second lifting mechanism 3 further comprises a connecting piece 32 and a rotating shaft 33, wherein the connecting piece 32 is a U-shaped plate with a third groove 321 in the center, wherein a second through-hole 322 is provided at a first end of the connecting piece 32. During assembly, the rotary block 312 is placed in the third groove 321 of the connecting piece 32, wherein the first through hole 313 and the second through hole 322 are opposite to each other, wherein the rotary shaft 33 is guided through the first through hole 313 and the second through hole 322 in order to realize an articulated connection between the adjustment block 31 and the connecting piece 32.A second end of the connecting piece 32 is fixedly connected to the treadmill body 1 to realize a hinged connection between the adjustment block 31 and the treadmill body 1. The size of the connecting piece 32 is adjusted so that when the second support surface 316 contacts the ground, a bottom plate of the second end of the connecting piece 32 lies within the first groove 311, which facilitates stable contact of a rectangular side of the adjustment block 31, which is opposite to the second support surface 316, with the lower surface of the treadmill body 1.

[0029] In some embodiments, the bottom plate of the second end of the connecting piece 32 is connected to the treadmill body 1 by welding, screwing or gluing.

[0030] In some embodiments, the second lifting mechanism 3 further comprises a limit rod 34, wherein the limit rod 34 is fixedly connected to the lower part of the treadmill body 1. A second groove 314 is provided on each of the two adjustment blocks 31, wherein the second grooves 314 of the two adjustment blocks 31 are opposite one another, so that when the adjustment block 31 rotates until the second support surface 316 is in contact with the ground for support, the two ends of the limit rod 34 are each located in the two second grooves 314, thereby limiting further rotation of the adjustment block 31 in the direction of the limit rod 34. When the adjustment block 31 rotates until the first support surface 315 is in contact with the ground for support, a surface of the adjustment block 31 that is opposite the first support surface 315 rests against the lower surface of the treadmill body 1.

[0031] In Fig. Figures 5 to 8 show some incline states of the treadmill. Fig. Figure 5 shows a first state for inclination adjustment of the treadmill, with the second support surface 316 of the adjustment block 31 in contact with the ground and the first lifting mechanism 2 in an initial state. At this time, the running platform is in a horizontal state. Fig. 6 shows a second state for adjusting the inclination of the treadmill. Based on the first state, the adjustment block 31 is rotated counterclockwise so that the first support surface 315 rests against the ground, with the first lifting mechanism 2 in the initial state. Since the distance between the first support surface 315 and the rotating shaft 33 is smaller than the distance between the second support surface 316 and the rotating shaft 33, rotating the adjustment block 31 to this position reduces the support height of the rear end of the treadmill body 1. Fig. 7 shows that, based on the first state, the adjustment block 31 is in contact with the ground with the second support surface 316, and the support rod 21, driven by the telescopic drive 23, increases an angle between the support rod 21 and the ground, so that the support height of the front end of the treadmill body 1 is increased. Fig. 8 shows that, based on the second state, the adjustment block 31 is in contact with the ground with the first support surface 315, and the support rod 21, driven by the telescopic drive 23, increases an angle between the support rod 21 and the ground, so that the support height of the front end of the treadmill body 1 is increased, thereby further increasing the degree of inclination between the running platform and the ground based on the second state.

[0032] From the above description, it is apparent that the above-mentioned embodiments of the present invention achieve the following technical effects: 1. A lifting mechanism is provided at each end of the lower part of the treadmill body, whereby both the first lifting mechanism and the second lifting mechanism can independently adjust the inclination of the running platform of the treadmill. 2. The adjustment block of the second lifting mechanism is provided with at least two support surfaces, each of the support surfaces having a different distance from the rotating shaft, thereby enabling adjustment with different support heights. 3. A limit rod is mounted on a lower part of a body of the second lifting mechanism, wherein a second groove is provided on the adjustment block, wherein, when the second support surface is in contact with the ground, the rod body part of the limit rod lies in the second groove to limit further rotation of the adjustment block to the side of the limit rod. 4. Anti-slip strips are provided on each support surface of the adjustment block to improve the support stability of the adjustment block in the current support position.

[0033] Compared with the prior art, the treadmill with a double lifting mechanism according to the present invention has a variety of incline adjustment gears to suit different exercise needs of users.

[0034] The above illustrates only a few embodiments of the present invention, which are not intended to limit the present invention. Various modifications and alterations of the present invention are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are intended to be within the scope of the present invention. Explanation of reference symbols: 1 treadmill body; 2 first lifting mechanism; 21 support rod; 22 connecting frames; 23 Telescopic drive; 24 roll; 3 second lifting mechanism; 31 adjustment block; 311 first groove; 312 turning block; 313 first through hole; 314 second groove; 315 first support surface; 316 second support surface; 32 connecting piece; 321 third groove; 322 second through hole; 33 rotating shaft; 34 Limit bar

Claims

[1] Double lifting mechanism of a treadmill, which is applied below a treadmill body (1), characterized by that the double lifting mechanism includes: a first lifting mechanism (2) which is designed for mounting on a first end of the treadmill body (1) and comprises a support rod (21) and a telescopic drive (23), wherein during assembly a first end of the support rod (21) is designed for rotatable connection to a lower part of the treadmill body (1) and a second end of the support rod (21) is designed for contact with the ground, wherein a first end of the telescopic drive (23) is rotatably connected to the support rod (21), wherein a second end of the telescopic drive (23) is rotatably connected to the treadmill body (1), wherein the support rod (21) is driven by the telescopic drive (23) to rotate about a pivot point of the first end of the support rod (21); and a second lifting mechanism (3) which is designed for mounting on a second end of the treadmill body (1) and comprises an adjustment block (31) for rotatable coupling to the second end of the treadmill body (1), wherein at least two support surfaces with different radii are distributed around a center of rotation on an outer edge of the adjustment block (31); wherein the first lifting mechanism (2) and the second lifting mechanism (3) are adjustable independently of each other. [2] Double lifting mechanism of a treadmill according to claim 1, characterized byin that the first lifting mechanism (2) comprises two support rods (21), wherein the two support rods (21) are firmly connected to one another via a connecting frame (22), wherein the second end of the telescopic drive (23) is rotatably connected to the connecting frame (22), wherein the connecting frame (22) is driven by the telescopic drive (23) in such a way that the support rod (21) can be brought into rotation about the pivot point of the first end of the support rod (21). [3] Double lifting mechanism of a treadmill according to claim 1 or 2, characterized by that a roller (24) is mounted on the second end of the support rod (21), wherein when the support rod (21) rotates about the pivot point of the first end, a rolling friction is generated between the second end of the support rod (21) and the ground via the roller (24). [4] Double lifting mechanism of a treadmill according to one of claims 1 to 3, characterized by , that a rotary block (312) is provided on the adjustment block (31), wherein a first through hole (313) is provided on the rotary block (312); wherein the second lifting mechanism (3) further comprises a connecting piece (32) and a rotating shaft (33), wherein a second through hole (322) is provided at a first end of the connecting piece (32), wherein a second end of the connecting piece (32) is fixedly connected to the treadmill body (1); and wherein the rotary shaft (33) is guided through the first through hole (313) and the second through hole (322) in order to pivotally connect the connecting piece (32) to the adjustment block (31). [5] Double lifting mechanism of a treadmill according to claim 4, characterized by that two groups of second lifting mechanisms (3) are provided, wherein during assembly the axes of the two rotary shafts (33) of two second lifting mechanisms (3) lie on an identical straight line. [6] Double lifting mechanism of a treadmill according to claim 4 or 5, characterized by in that the second lifting mechanism (3) further comprises a limit rod (34), wherein the limit rod (34) is designed for mounting on the lower part of the treadmill body (1), wherein a limit groove (314) is provided on the adjustment block (31), wherein, when the adjustment block (31) rotates until one of the support surfaces performs the support, a rod body part of the limit rod (34) lies in the limit groove (314). [7] Double lifting mechanism of a treadmill according to one of claims 4 to 6, characterized bythat an overall shape of the adjustment block (31) is triangular, wherein the support surfaces comprise a first support surface (315) and a second support surface (316), which are each provided at two vertices of the adjustment block (31), so that a triangle with three unequal sides is formed by the center of rotation of the adjustment block (31), the center of the first support surface (315) and the center of the second support surface (316). [8] Double lifting mechanism of a treadmill according to claim 7, characterized bythat the overall shape of the adjustment block (31) is a right-angled triangle, wherein the first support surface (315) is located at the right angle, wherein, when the first support surface (315) is in contact with the ground for support, a hypotenuse of the adjustment block (31) opposite the first support surface (315) abuts a lower surface of the treadmill body (1); wherein, when the second support surface (316) is in contact with the ground for support, a right-angled side of the adjustment block (31) opposite the second support surface (316) abuts the lower surface of the treadmill body (1). [9] Double lifting mechanism of a treadmill according to one of claims 4 to 8, characterized by that several anti-slip strips are provided on the support surface. [10] Treadmill, characterized bythat it comprises a treadmill body (1), wherein a double lifting mechanism of a treadmill according to one of claims 1 to 9 is provided on a lower part of the treadmill body (1).

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