Treadmill with adjustable gradient

Abstract

The treadmill with the adjustable gradient comprises a treadmill body, and two middle supporting legs and two front supporting legs are symmetrically arranged on the two sides of the bottom of the treadmill body; the middle supporting leg comprises a middle adjusting and fixing pipe and a middle adjusting shaft, the middle adjusting and fixing pipe is fixedly connected with the middle of the treadmill body, the middle adjusting shaft is inserted into the middle adjusting and fixing pipe, a first sliding groove is formed in the middle adjusting and fixing pipe, and a second sliding groove is formed in the middle adjusting and fixing pipe; two limiting points with different heights are arranged on the first sliding groove, a first limiting pin is fixedly arranged on the middle adjusting shaft, and the first limiting pin is arranged in the first sliding groove in a sliding mode; the middle adjusting shaft and the front adjusting shaft are arranged to be switched between two different-height limiting points on the middle adjusting fixing pipe and the front adjusting fixing pipe, switching of climbing running and flat running of the treadmill is achieved, different running requirements of runners are met, and the treadmill is simple in structure, easy to operate, low in price and not prone to damage.

Description

Technical Field

[0001] The present application relates to the technical field of sports equipment, and in particular to a treadmill with adjustable slope. Background Art

[0002] Treadmills are commonly used fitness equipment in life. Running is the simplest aerobic exercise among today's home fitness equipment. It is the most effective and scientific way to maintain a person's physical and mental health. It is the best choice for home fitness equipment.

[0003] In the prior art, with the gradual enrichment of treadmill functions and the iteration of treadmill products, existing treadmills usually have the function of adjusting the slope, and they usually have a variety of sophisticated electronic components inside to adjust the slope, such as cylinders, etc., and also need supporting control chips, cables and other components to realize the control function, which will increase the price of the treadmill, and its complex internal structure is also more susceptible to damage. For home treadmills, the running habits of individual users are usually fixed and rarely change. For example, they maintain a certain speed or slope, especially the slope, and will not adjust it for a long time after selecting the appropriate slope. For such runners, when choosing a treadmill, they will prefer to choose a treadmill with low price, high cost performance, and not easy to damage. For such runners, the existing treadmills will have redundant functions and waste.

[0004] Therefore, the inventor is necessary to design a new treadmill with adjustable slope to overcome the above problems. Summary of the invention

[0005] The main purpose of the present application is to provide a treadmill with adjustable slope, so as to solve the problem that the slope adjustment structure in the related art is complicated and easy to be damaged.

[0006] In order to achieve the above-mentioned object, the present application provides a treadmill with adjustable slope, comprising a treadmill body, wherein two middle support feet and two front support feet are symmetrically arranged on both sides of the bottom of the treadmill body;

[0007] The middle supporting foot comprises a middle adjusting fixed tube and a middle adjusting shaft, the middle adjusting fixed tube is fixedly connected to the middle of the treadmill body, the middle adjusting shaft is inserted into the middle adjusting fixed tube, a first slide groove is provided on the middle adjusting fixed tube, the first slide groove has two limit points at different heights, a first limit pin is fixedly provided on the middle adjusting shaft, and the first limit pin is slidably provided in the first slide groove;

[0008] The front support foot comprises a front adjustment fixing tube and a front adjustment shaft, the front adjustment fixing tube is fixedly connected to the front of the treadmill body, the front adjustment shaft is inserted into the front adjustment fixing tube, a second slide groove is provided on the front adjustment fixing tube, the second slide groove also has two limit points at different heights, a second limit pin is fixedly provided on the front adjustment shaft, and the second limit pin is slidably provided in the second slide groove;

[0009] The ratio between the height difference between the two limit points on the first slide groove and the height difference between the two limit points on the second slide groove is equal to the ratio between the distance between the middle support foot and the rear grounding point of the treadmill body and the distance between the front support foot and the rear grounding point of the treadmill body.

[0010] Preferably, the first slide groove and the second slide groove are both L-shaped.

[0011] Preferably, the ends of the horizontal sections of the first slide groove and the second slide groove are both provided with limiting grooves for embedding the first limiting pin and the second limiting pin respectively.

[0012] Preferably, a first sealing piece is fixedly provided at the bottom of the middle adjustment fixed tube, a first spring is fixedly provided between the first sealing piece and the top of the middle adjustment shaft, and the first spring is sleeved on the outside of the middle adjustment shaft.

[0013] Preferably, a second sealing piece is fixedly provided at the bottom of the front adjustment fixing tube, a second spring is fixedly provided between the second sealing piece and the top of the front adjustment shaft, and the second spring is sleeved on the outside of the front adjustment shaft.

[0014] Preferably, a middle buffer foot pad is fixedly arranged at the bottom of the middle adjustment shaft.

[0015] Preferably, a front buffer foot pad is fixedly provided at the bottom of the front adjustment shaft.

[0016] Preferably, two rear buffer foot pads are symmetrically arranged on both sides of the rear end of the bottom of the treadmill body.

[0017] Preferably, the front part of the treadmill body is also rotatably provided with moving wheels.

[0018] The utility model provides a treadmill with adjustable slope, which has the following beneficial effects compared with the prior art:

[0019] 1. By setting the middle adjustment shaft and the front adjustment shaft to rotate and switch between two different height limit points on the middle adjustment fixing tube and the front adjustment fixing tube, the treadmill can be switched between hill running and flat running to meet the different running needs of runners. The structure is simple, the operation is simple, there are no complicated electronic components, the price of the entire treadmill body is low, and it is not easy to be damaged, so it is suitable for use by family runners.

[0020] 2. Buffering pads are set at the bottom of the middle adjustment shaft and the bottom of the front adjustment shaft. Together with the rear buffering pads on the treadmill body, the position where the treadmill body contacts the ground can be buffered. When the user is running, the noise is small. At the same time, because of the buffering, it can effectively protect the knees, reduce shock, relieve pressure during running, and avoid injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0022] Figure 1 This is the overall structural diagram of the utility model (the treadmill body is in a climbing running state);

[0023] Figure 2 This utility model Figure 1 A magnified view of the structure at center;

[0024] Figure 3 It is an enlarged view of the structure at B of the utility model;

[0025] Figure 4 This is the overall structural diagram of the utility model (the treadmill body is in a flat ground running state);

[0026] Figure 5 It is an exploded view of the utility model.

[0027] Among them: 1. treadmill body; 2. middle support foot; 3. front support foot; 4. middle adjustment fixing tube; 5. middle adjustment shaft; 6. first slide groove; 7. first limit pin; 8. front adjustment fixing tube; 9. front adjustment shaft; 10. second slide groove; 11. second limit pin; 12. limit groove; 13. first sealing piece; 14. first spring; 15. second sealing piece; 16. second spring; 17. middle buffer foot pad; 18. front buffer foot pad; 19. rear buffer foot pad; 20. moving wheel. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0031] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0032] In addition, the term "plurality" shall mean two or more.

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] like Figures 1 to 5 As shown, a slope-adjustable treadmill comprises a treadmill body 1, wherein two middle supporting feet 2 and two front supporting feet 3 are symmetrically arranged on both sides of the bottom of the treadmill body 1;

[0035] The middle supporting foot 2 includes a middle adjustment fixing tube 4 and a middle adjustment shaft 5, the middle adjustment fixing tube 4 is fixedly connected to the middle of the treadmill body 1, the middle adjustment shaft 5 is inserted in the middle adjustment fixing tube 4, the middle adjustment fixing tube 4 is provided with a first slide groove 6, the first slide groove 6 has two limit points at different heights, the middle adjustment shaft 5 is fixedly provided with a first limit pin 7, and the first limit pin 7 is slidably provided in the first slide groove 6;

[0036] The front support foot 3 includes a front adjustment fixing tube 8 and a front adjustment shaft 9, the front adjustment fixing tube 8 is fixedly connected to the front of the treadmill body 1, the front adjustment shaft 9 is inserted in the front adjustment fixing tube 8, the front adjustment fixing tube 8 is provided with a second slide groove 10, the second slide groove 10 also has two limit points of different heights, the front adjustment shaft 9 is fixedly provided with a second limit pin 11, and the second limit pin 11 is slidably provided in the second slide groove 10;

[0037] The ratio between the height difference between the two limit points on the first slide groove 6 and the height difference between the two limit points on the second slide groove 10 is equal to the ratio between the distance between the middle support foot 2 and the rear grounding point of the treadmill body 1 and the distance between the front support foot 3 and the rear grounding point of the treadmill body 1; two rear buffering foot pads 19 are symmetrically arranged on both sides of the rear end of the bottom of the treadmill body 1; when working, the treadmill body 1 is placed on the ground through the two middle support feet 2, the two front support feet 3, and the two buffering foot pads, and when the first limit pin 7 is at the lower limit point in the first slide groove 6 and the second limit pin 11 is at the higher limit point in the second slide groove 10, the treadmill body 1 When the treadmill body 1 is in a horizontal state and has no slope, the user can perform flat ground running. When the first limit pin 7 is at a limit point at a higher position in the first slide groove 6 and the second limit pin 11 is at a limit point at a lower position in the second slide groove 10, the front part of the treadmill is higher than the rear part and therefore has a certain slope, and the user can perform hill climbing running. When switching between flat ground running and hill climbing running, the user only needs to lift one side of the treadmill body 1, and then rotate the middle adjustment shaft 5 and the front adjustment shaft 9 in turn to rotate the first limit pin 7 and the second limit pin 11 from the higher limit point to the lower limit point, and do the same on the other side. In this way, the treadmill body 1 can be switched from the flat ground running state to the hill climbing running state. It should be noted that, when switching, since the distance that the front part of the treadmill body 1 is raised is greater than the distance that the middle part of the treadmill body 1 is raised, the height difference between the two limit points on the first limit groove 12 is smaller than the height difference between the two limit points on the second limit groove 12. It is necessary to ensure that after the treadmill body 1 is switched to the climbing running state, the rear buffer foot pad 19, the middle support foot 2, and the front support foot 3 are in contact with the ground at the same time and are subjected to force together.

[0038] The first slide groove 6 and the second slide groove 10 are both L-shaped; the ends of the horizontal sections of the first slide groove 6 and the second slide groove 10 are provided with limit grooves 12 for embedding the first limit pin 7 and the second limit pin 11 respectively; when working, when the first limit pin 7 is at the top of the vertical section of the L-shaped first slide groove 6 (i.e., the higher limit point), the treadmill is in a flat ground running state, and when the first limit pin 7 is in the limit groove 12 of the L-shaped first slide groove 6, the treadmill is in a climbing running state, and the second slide groove 10 and the second limit pin 11 are the same. It should be noted that, in addition to the L-shape, any shape with two limit points of different heights can be used here, and at the same time, the circumferential angle of the slide groove should not exceed 90 degrees, which will greatly reduce the supporting capacity of the support foot.

[0039] A first sealing piece 13 is also fixedly provided at the bottom of the middle adjustment fixed tube 4, and a first spring 14 is also fixedly provided between the first sealing piece 13 and the top of the middle adjustment shaft 5, and the first spring 14 is sleeved on the outside of the middle adjustment shaft 5; a second sealing piece 15 is also fixedly provided at the bottom of the front adjustment fixed tube 8, and a second spring 16 is also fixedly provided between the second sealing piece 15 and the top of the front adjustment shaft 9, and the second spring 16 is sleeved on the outside of the front adjustment shaft 9; during operation, when the first adjustment shaft and the second adjustment shaft are rotated, the first spring 14 and the second spring 16 can provide elastic force to help the first limit pin 7 and the second limit pin 11 to better engage in the first slide groove 6 and the second slide groove 10.

[0040] A middle buffer foot pad 17 is fixedly provided at the bottom of the middle adjustment shaft 5; a front buffer foot pad 18 is fixedly provided at the bottom of the front adjustment shaft 9; when working, buffer foot pads are provided at the bottom of the middle adjustment shaft 5 and the bottom of the front adjustment shaft 9, and cooperate with the rear buffer foot pad 19 on the treadmill body 1, so that the position where the treadmill body 1 contacts the ground can be buffered. When the user is running, the noise is small. At the same time, because of the buffering, it can effectively protect the knees, reduce shock, relieve pressure during running, and avoid injuries.

[0041] The front part of the treadmill body 1 is also rotatably provided with moving wheels 20; when working, the rear part of the treadmill body 1 can be lifted to make the moving wheels 20 touch the ground, and the treadmill body 1 can be pushed to change the placement position.

[0042] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A treadmill with adjustable slope, comprising a treadmill body (1), characterized in that: Two middle supporting feet (2) and two front supporting feet (3) are symmetrically arranged on both sides of the bottom of the treadmill body (1); The middle supporting foot (2) comprises a middle adjusting fixed tube (4) and a middle adjusting shaft (5), wherein the middle adjusting fixed tube (4) is fixedly connected to the middle of the treadmill body (1), the middle adjusting shaft (5) is inserted into the middle adjusting fixed tube (4), the middle adjusting fixed tube (4) is provided with a first sliding groove (6), the first sliding groove (6) has two limiting points at different heights, the middle adjusting shaft (5) is fixedly provided with a first limiting pin (7), and the first limiting pin (7) is slidably provided in the first sliding groove (6); The front support foot (3) comprises a front adjustment fixing tube (8) and a front adjustment shaft (9), the front adjustment fixing tube (8) is fixedly connected to the front of the treadmill body (1), the front adjustment shaft (9) is inserted into the front adjustment fixing tube (8), a second slide groove (10) is provided on the front adjustment fixing tube (8), the second slide groove (10) also has two limit points at different heights, a second limit pin (11) is fixedly provided on the front adjustment shaft (9), and the second limit pin (11) is slidably provided in the second slide groove (10); The ratio between the height difference between the two limit points on the first slide groove (6) and the height difference between the two limit points on the second slide groove (10) is equal to the ratio between the distance between the middle support foot (2) and the rear grounding point of the treadmill body (1) and the distance between the front support foot (3) and the rear grounding point of the treadmill body (1).

2. A treadmill with adjustable slope as claimed in claim 1, characterized in that: The first sliding groove (6) and the second sliding groove (10) are both L-shaped.

3. A treadmill with adjustable slope as claimed in claim 2, characterized in that: The ends of the horizontal sections of the first slide groove (6) and the second slide groove (10) are both provided with limiting grooves (12) for respectively embedding the first limiting pin (7) and the second limiting pin (11).

4. A treadmill with adjustable slope as claimed in claim 1, characterized in that: A first sealing piece (13) is also fixedly arranged at the bottom of the middle adjustment fixing tube (4), and a first spring (14) is also fixedly arranged between the first sealing piece (13) and the top of the middle adjustment shaft (5), and the first spring (14) is sleeved on the outside of the middle adjustment shaft (5).

5. The treadmill with adjustable slope according to claim 1, characterized in that: A second sealing piece (15) is also fixedly arranged at the bottom of the front adjustment fixing tube (8), and a second spring (16) is also fixedly arranged between the second sealing piece (15) and the top of the front adjustment shaft (9), and the second spring (16) is sleeved on the outside of the front adjustment shaft (9).

6. A treadmill with adjustable slope as claimed in claim 1, characterized in that: A middle buffer foot pad (17) is fixedly arranged at the bottom of the middle adjustment shaft (5).

7. A treadmill with adjustable slope as claimed in claim 1, characterized in that: A front buffer foot pad (18) is fixedly arranged at the bottom of the front adjustment shaft (9).

8. The slope-adjustable treadmill according to claim 1, characterized in that: Two rear buffering foot pads (19) are symmetrically arranged on both sides of the rear end of the bottom of the treadmill body (1).

9. The slope-adjustable treadmill according to claim 1, characterized in that: The front part of the treadmill body (1) is also rotatably provided with moving wheels (20).

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