Treadmill with lifting structure

Abstract

The utility model discloses a running machine with a lifting structure. The two sides of the front end of the treadmill main frame body are rotationally connected with rolling units correspondingly. The running machine auxiliary frame body has a first state that the running machine auxiliary frame body is arranged in front of the running machine main frame body and a second state that the running machine auxiliary frame body is arranged below the front end of the running machine main frame body to lift a running platform of the running machine, and arc-shaped rails matched with the rolling units are assembled on the two sides of the running machine auxiliary frame body; and the driving unit is used for driving the change of the state of the auxiliary frame body of the running machine. According to the utility model, the exercise experience during uphill can be simulated, so that the training of a user is more diversified and interesting, and the exercise effect is improved; the treadmill is lifted by adopting a head deformation mode of the treadmill, the structure is more novel, the operation is simple, and the stability is high.

Description

Technical Field

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

[0002] Traditional treadmills have a simple structure, mainly consisting of a fixed frame, including a running platform, a support frame, and a control panel. Users can only perform two-dimensional movements during use, and lack the ability to simulate a real outdoor sports environment, especially unable to provide a real experience like climbing a hill. In addition, the existing treadmills are prone to reduce users' interest in exercise and affect their enthusiasm for continuous exercise due to the lack of sufficient variability during use.

[0003] In order to improve the above problems, some treadmills with tilt function have appeared on the market, but these treadmills usually need to adjust the tilt angle manually, which is inconvenient to operate and unsafe to adjust during exercise, such as the public patent document CN2675182Y. Therefore, they need to be improved urgently. Utility Model Content

[0004] The utility model aims at the deficiencies in the prior art and provides a treadmill with a lifting structure, which can realize the dynamic lifting of the treadmill platform and has a simple and reliable structure and is easy to realize.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A treadmill with a lifting structure, comprising

[0007] The treadmill main frame has rolling units rotatably connected to both sides of its front end;

[0008] A treadmill sub-frame having a first state of being arranged in front of the treadmill main frame and a second state of being arranged below the front end of the treadmill main frame to lift the treadmill platform, and arc tracks matching the rolling unit are mounted on both sides of the treadmill sub-frame; and

[0009] A driving unit is used to drive the change of the state of the treadmill sub-frame.

[0010] In the above scheme, preferably, the driving unit includes a first driving motor rotatably connected to the treadmill sub-frame, a screw drivingly connected to the first driving motor, and a sleeve threadedly mounted on the screw, and one end of the sleeve is rotatably connected to the treadmill main frame.

[0011] In the above scheme, preferably, the output end of the first drive motor is transmission-connected with a reduction mechanism, and the reduction mechanism is assembled with the first drive motor as a whole to form a drive body, and one end of the screw is inserted into the reduction mechanism and transmission-connected with the reduction mechanism;

[0012] A first pivot seat is fixedly disposed on the treadmill sub-frame, and the driving body is rotatably mounted on the first pivot seat;

[0013] A second pivot seat is fixedly arranged on the bottom cross bar of the treadmill main frame, and one end of the sleeve is rotatably assembled on the second pivot seat.

[0014] In the above scheme, preferably, the front and rear ends of the treadmill main frame are respectively rotatably connected with an active roller and a driven roller, a running belt is wound around the active roller and the driven roller, and the active roller is transmission-connected to a second drive motor fixed on the treadmill sub-frame through a belt or a chain.

[0015] In the above scheme, preferably, the treadmill sub-frame includes a bottom plate and two side plates fixedly arranged at both ends of the bottom plate, and when the treadmill sub-frame is in the first state, the bottom plate is located below the rolling unit;

[0016] The corresponding arc-shaped tracks are fixedly arranged on the inner side walls of the two side plates respectively.

[0017] In the above solution, preferably, the rolling unit is a gear, and the outer wall of the arc track has a convex tooth that meshes with the gear, and the convex tooth is arranged in an arc shape on the arc track.

[0018] In the above scheme, preferably, a bracket is fixedly provided at the front end of the treadmill main frame, a first connecting shaft is fixedly provided on the bracket, and the rolling unit is rotatably connected to the first connecting shaft.

[0019] In the above scheme, preferably, a second connecting shaft is fixedly provided on the side plate of the treadmill sub-frame, a connecting bar is rotatably connected to the second connecting shaft, and the other end of the connecting bar is rotatably connected to the first connecting shaft.

[0020] In the above solution, preferably, the second connecting shaft is arranged at the center of the arc-shaped convex tooth so that the moving path of the rolling unit and the connecting strip are concentric.

[0021] In the above scheme, preferably, it also includes a treadmill head shell, a main shell of the treadmill head shell and a front side plate whose upper end is rotatably connected to the main shell, the rear end of the main shell is rotatably connected to the front end of the treadmill main frame, and the lower end of the front side plate is rotatably connected to the front end of the treadmill sub-frame.

[0022] The beneficial effects of the utility model are:

[0023] The utility model can simulate the motion experience when going uphill, making the user's training more diversified and interesting, and improving the exercise effect; it realizes the lifting of the treadmill by deforming the head of the treadmill, with a more novel structure, simple operation and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the lifting state of the utility model.

[0025] Figure 2 It is a schematic diagram of the utility model.

[0026] Figure 3 is Figure 2 an enlarged schematic diagram of the position D in

[0027] Figure 4 It is a schematic diagram of the bottom structure of the utility model.

[0028] Figure 5 It is a schematic diagram of the matching structure between the main frame body and the auxiliary frame body of the treadmill of the utility model.

[0029] Figure 6 It is a schematic diagram of the cooperation between the rolling unit and the arc track of the utility model.

[0030] Figure 7 It is a schematic diagram of the partial structure decomposition state of the utility model.

[0031] Figure 8 It is a schematic diagram of the bracket of the utility model.

[0032] Figure 9 It is a schematic diagram of the connecting bar of the utility model.

[0033] Figure 10 It is a schematic diagram of the lifting state of the treadmill head housing of the utility model.

[0034] Figure 11 It is a schematic diagram of the non-lifting state of the utility model.

[0035] Figure 12 It is a schematic diagram of the decomposition state of the treadmill head housing of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following further describes the utility model in detail in conjunction with the drawings and the specific embodiments:

[0037] Refer to Figures 1 - 12 , a treadmill with a lifting structure, including a treadmill main frame body 1, a treadmill auxiliary frame body 2 and a driving unit 3.

[0038] The front and rear ends of the main frame 1 of the treadmill are respectively rotatably connected with a driving roller 11 and a driven roller 12. A running belt 13 is wound around the driving roller 11 and the driven roller 12. The driving roller 11 is in transmission connection with a second driving motor 15 fixed on the auxiliary frame 2 of the treadmill through a belt 14 or a chain, so as to drive the running belt 13 to move in a cycle. Of course, structures such as a running board can be arranged below the running belt 13 for reference to the existing design.

[0039] In this embodiment, brackets 4 are respectively fixed on the left and right sides of the front end of the main frame 1 of the treadmill. The brackets 4 can be specifically fixed on the outer side of the front end of the main frame 1 of the treadmill. The inner part of the front end of the main frame 1 of the treadmill is used for installing the driving roller 11 so that the two are isolated from each other without interference.

[0040] A first connecting shaft 41 is fixed on the bracket 4. As an option, the first connecting shaft 41 is integrally formed with the bracket 4.

[0041] The first connecting shaft 41 extends horizontally towards the outer side of the main frame 1 of the treadmill. A rolling unit 5 is assembled on the first connecting shaft 41. The rolling unit 5 is a gear or a roller. In this embodiment, a gear is specifically selected, that is, corresponding gears are respectively provided on the left and right sides of the front end of the main frame 1 of the treadmill.

[0042] The middle part of the rolling unit 5 has a mounting hole adapted to the first connecting shaft 41, so as to be assembled on the first connecting shaft 41 and can rotate on the first connecting shaft 41.

[0043] For the auxiliary frame 2 of the treadmill, it has a first state arranged in front of the main frame 1 of the treadmill and a second state arranged below the main frame 1 of the treadmill to lift the running platform of the treadmill. Among them, in the first state as Figure 11 shown, the running platform of the treadmill is in a horizontal state and is used for flat running exercise; in the second state as Figure 1 、 Figure 10 shown, the running platform of the treadmill is in an inclined state and is used for climbing exercise.

[0044] In this embodiment, the auxiliary frame 2 of the treadmill includes a bottom plate 21 and two side plates 22 fixed at both ends of the bottom plate 21. Corresponding arc-shaped tracks 6 are respectively fixed on the inner side walls of the two side plates 22. The arc-shaped tracks 6 are used to cooperate with the rolling unit 5 so that the rolling unit 5 moves along the track set by the arc-shaped tracks 6.

[0045] As described above, the rolling unit 5 is preferably a gear. Correspondingly, the outer wall of the arc-shaped track 6 has convex teeth 61 meshing with the gear. The cooperation state of the two is as Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, in this embodiment, the protruding teeth 61 are arranged in an arc shape on the arc track 6, that is, the moving path of the rolling unit 5 on the arc track 6 is in an arc shape. Of course, the arc track 6 can also be designed as an arc shape as a whole.

[0046] In order to make the connection between the treadmill main frame 1 and the treadmill sub-frame 2 more stable and firm, in this embodiment, a second connecting shaft 23 is fixedly provided on the side plate 22 of the treadmill sub-frame 2, and the second connecting shaft 23 is installed at the center of the convex teeth 61 arranged in a circular arc shape. A connecting bar 7 is rotatably connected to the second connecting shaft 23 so that the moving path of the rolling unit 5 and the connecting bar is concentric.

[0047] Specifically, one end of the connecting strip 7 is rotatably connected to the second connecting shaft 23, and the other end is rotatably connected to the first connecting shaft 41. As one option, one end of the connecting strip 7 and the first connecting shaft 41 can be arranged between the rolling unit 5 and the bracket 4, such as Figure 6 shown.

[0048] The cooperation between the rolling unit 5 and the arc track 6 defines the moving path of the front end of the treadmill main frame 1 , and the lifting action of the treadmill depends on the drive of the drive unit 3 .

[0049] Specifically, the drive unit 3 includes a first drive motor 31, a screw 32 and a sleeve 33. The first drive motor 31 is rotatably connected to the treadmill sub-frame 2. One end of the screw 32 is transmission-connected to the first drive motor 31, and the other end is passed through the sleeve 33 and threadedly connected to the sleeve 33. The sleeve 33 is rotatably connected to the treadmill main frame 1.

[0050] The sleeve 33 is a screw sleeve structure, one end of which is open and has a hollow cavity that matches the screw 32, and an internal thread that matches the thread of the screw 32 is provided on the inner wall of the hollow cavity, so that when the screw 32 rotates forward, one end of the screw 32 can move into the sleeve 33 through thread cooperation, that is, the screw 32 and the sleeve 33 shrink relatively, and the overall size of the screw 32 and the sleeve 33 is shortened; when the screw 32 reverses, the screw 32 and the sleeve 33 stretch relatively, and the overall size of the screw 32 and the sleeve 33 becomes longer, and the forward and reverse rotation of the screw 32 is controlled by the forward and reverse rotation of the first drive motor 31.

[0051] As a further option, a reduction mechanism is transmission-connected to the output end of the first drive motor 31, and the reduction mechanism is assembled with the first drive motor 31 as a whole to form a drive body. The drive body can directly select the reduction motor, or add a related reduction structure in the prior art to the motor. One end of the screw 32 is inserted into the reduction mechanism and transmission-connected to the reduction mechanism to increase the output torque.

[0052] As one of the implementation manners, a first pivot seat 24 is fixedly provided on the auxiliary frame body 2 of the treadmill, and a second pivot seat 16 is fixedly provided on the bottom cross bar of the main frame body 1 of the treadmill. The driving body is rotationally assembled on the first pivot seat 24, and the outer end of the sleeve 33 is rotationally assembled on the second pivot seat 16.

[0053] When it is necessary to lift the treadmill, start the first driving motor 31 to rotate forward to drive the screw 32 to rotate. Relying on the threaded cooperation relationship between the screw 32 and the sleeve 33, the two contract relatively. During this action process, the rolling unit 5 climbs along the track set by the arc track 6, and the auxiliary frame body 2 of the treadmill gradually moves downward below the head of the main frame body 1 of the treadmill, and the head of the main frame body 1 of the treadmill is gradually lifted. After lifting, as Figure 1 shown; and when it is necessary to restore the treadmill to the flat state as Figure 11 shown, only need to control the first driving motor 31 to rotate reversely, the screw 32 and the sleeve 33 expand relatively, and the main frame body 1 and the auxiliary frame body 2 of the treadmill can be restored to the original state.

[0054] To improve the stability of the morphological change of the treadmill, in this embodiment, when the auxiliary frame body 2 of the treadmill is in the first state, the bottom plate 21 of the auxiliary frame body 2 is located below the rolling unit 5. As a further option, at least part of the bottom plate 21 is located directly below the rolling unit 5.

[0055] As one of the options, a baffle 25 can also be provided at the front part of the auxiliary frame body 2 of the treadmill. As Figure 7 shown, the left and right ends of the baffle 25 are respectively fixedly connected to the left and right side plates 22, and the lower end is fixedly connected to the bottom plate 21. The baffle 25, the two side plates 22 and the bottom plate 21 are connected into one body.

[0056] In this embodiment, a treadmill head housing is also configured, which is used to cover the treadmill head structure and includes two states: lifting and non-lifting.

[0057] Specifically, the treadmill head housing includes a main housing 81 and a front side plate 82. Among them, the main housing 81 includes a top side plate 811 and two side panels 812 arranged on the left and right sides of the top side plate 811. It has an opening 813 at the front part, and the front side plate 82 is assembled at the opening 813.

[0058] In this embodiment, the lower end of the front side plate 82 is rotationally connected to the lower front part of the auxiliary frame body 2 of the treadmill, and the upper end of the front side plate 82 is rotationally connected to the main housing 81. As one of the implementation manners, the upper end of the front side plate 82 is specifically rotationally connected to the upper end position of the opening 813. For example, the extending edges 821 at both ends of the front side plate 82 are arranged on the two side panels 812 of the main housing 81 and can be arranged to fit each other. The upper ends of the extending edges 821 are rotationally connected to the corresponding positions of the side panels 812, and this position is located at the upper end of the opening 813.

[0059] In this embodiment, the rear end of the main housing 81 is rotatably connected to the front end of the main frame 1 of the treadmill. As one implementation, the rear end of the main housing 81 is rotatably connected to the first connecting shaft 41, and the rotation connection is concentric with the rolling unit 5.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A treadmill with a lifting structure, characterized in that: include The treadmill main frame has rolling units rotatably connected to both sides of its front end; A treadmill sub-frame, which has a first state arranged in front of the treadmill main frame and a second state arranged below the front end of the treadmill main frame to lift the treadmill platform, and arc tracks matching the rolling unit are installed on both sides of the treadmill sub-frame; as well as A driving unit is used to drive the change of the state of the treadmill sub-frame.

2. The treadmill with a lifting structure according to claim 1, characterized in that: The driving unit includes a first driving motor rotatably connected to the treadmill sub-frame, a screw rod drivingly connected to the first driving motor, and a sleeve threadedly mounted on the screw rod, wherein one end of the sleeve is rotatably connected to the treadmill main frame.

3. The treadmill with a lifting structure according to claim 2, characterized in that: The output end of the first driving motor is connected to a reduction mechanism, and the reduction mechanism is assembled with the first driving motor to form a driving body, and one end of the screw is inserted into the reduction mechanism and connected to the reduction mechanism; A first pivot seat is fixedly disposed on the treadmill sub-frame, and the driving body is rotatably mounted on the first pivot seat; A second pivot seat is fixedly arranged on the bottom cross bar of the treadmill main frame, and one end of the sleeve is rotatably assembled on the second pivot seat.

4. The treadmill with a lifting structure according to any one of claims 1 to 3, characterized in that: The front and rear ends of the treadmill main frame are rotatably connected with a driving roller and a driven roller respectively, and a running belt is wound around the driving roller and the driven roller. The driving roller is transmission-connected to a second driving motor fixedly mounted on the treadmill sub-frame through a belt or a chain.

5. The treadmill with a lifting structure according to claim 1, characterized in that: The treadmill sub-frame includes a bottom plate and two side plates fixedly arranged at both ends of the bottom plate, and when the treadmill sub-frame is in a first state, the bottom plate is located below the rolling unit; The corresponding arc-shaped tracks are fixedly arranged on the inner side walls of the two side plates respectively.

6. The treadmill with a lifting structure according to claim 1 or 5, characterized in that: The rolling unit is a gear, and the outer wall of the arc track is provided with a convex tooth meshing with the gear, and the convex tooth is arranged on the arc track in an arc shape.

7. The treadmill with a lifting structure according to claim 6, characterized in that: A bracket is fixedly provided at the front end of the treadmill main frame, a first connecting shaft is fixedly provided on the bracket, and the rolling unit is rotatably connected to the first connecting shaft.

8. The treadmill with a lifting structure according to claim 7, characterized in that: A second connecting shaft is fixedly arranged on the side plate of the treadmill sub-frame, a connecting bar is rotatably connected to the second connecting shaft, and the other end of the connecting bar is rotatably connected to the first connecting shaft.

9. The treadmill with a lifting structure according to claim 8, characterized in that: The second connecting shaft is arranged at the center of the arc-shaped convex tooth so that the moving path of the rolling unit and the connecting strip are concentric.

10. The treadmill with a lifting structure according to claim 1, characterized in that: It also includes a treadmill head shell, a main shell of the treadmill head shell and a front side plate whose upper end is rotatably connected to the main shell, the rear end of the main shell is rotatably connected to the front end of the treadmill main frame, and the lower end of the front side plate is rotatably connected to the front end of the treadmill sub-frame.

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