Treadmill with lifting structure

Abstract

The utility model discloses a running machine with a lifting structure. Comprising a treadmill body rack, a driving roller is rotationally arranged at the front end of the treadmill body rack, a driven roller is rotationally arranged at the rear end of the treadmill body rack, and the driving roller and the driven roller are sleeved with a running belt; the treadmill head rack is rotationally connected to the front end of the treadmill main body rack and is provided with a first position for enabling the treadmill platform to be in a horizontal state and a second position for enabling the treadmill platform to be in an inclined state; the outer end of the treadmill head rack is rotationally connected with a driving unit, and the distance between the rotating center line of the driving roller and the rotating center line of the treadmill head rack ranges from 0 mm to 25 mm. The whole front part of the treadmill can be turned over, and the front part shell of the treadmill can be driven to be turned over synchronously during turning over, so that the front part shell of the treadmill avoids the front-back movement range of feet of a user during running, the user is prevented from kicking the front part shell of the treadmill during running, and the front part shell of the treadmill is prevented from being kicked off due to the fact that the user does not kick the front part shell of the treadmill. And the movable range of the user on the treadmill is enlarged.

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] Running has become an activity suitable for everyone. When the weather outside is bad and you don’t want to interrupt your fitness plan, the treadmill has become a popular way of running and fitness. The treadmill is a must-have fitness equipment in many gyms and is also a must-have artifact for many families to run and exercise.

[0003] Existing treadmills generally have a flat training mode and a climbing training mode. For the climbing training mode, a lifting structure is generally used to lift the front end of the treadmill. The lifting structure, such as the existing public patent documents CN218248322U and CN219941696U, includes a reversible support foot. When the support foot is retracted or folded, it is used for the flat training mode. When the support foot is unfolded, the front end of the treadmill is lifted and the treadmill is tilted for the climbing training mode.

[0004] Taking the picture in the existing public patent document CN307898688S as an example, the front end of the treadmill generally has an outer shell, which is used to accommodate various components including the drive structure and components. The outer shell is usually higher than the treadmill platform.

[0005] In the climbing mode, the user's running intensity is higher. Accordingly, the user is likely to run further forward on the treadmill platform. However, due to the presence of the outer shell at the front end of the treadmill, the user is likely to kick the outer shell in the climbing mode, which not only easily damages the outer shell, but also easily affects the user's running rhythm. In severe cases, it may cause the user to trip when retracting his legs, posing a safety hazard. The lifting structure of the flippable supporting feet cannot solve the above technical problems. Therefore, the applicant has made improvements. Utility Model Content

[0006] The utility model aims at the deficiencies in the prior art and provides a treadmill with a lifting structure.

[0007] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0008] A treadmill with a lifting structure, comprising

[0009] A main frame of the treadmill, wherein a driving roller is rotatably arranged at the front end thereof, and a driven roller is rotatably arranged at the rear end thereof, and a running belt is sleeved on the driving roller and the driven roller; and

[0010] A treadmill head frame, which is rotatably connected to the front end of the treadmill main frame, and has a first position that makes the treadmill platform in a horizontal state and a second position that makes the treadmill platform in an inclined state;

[0011] The outer end of the treadmill head frame is rotatably connected to a driving unit, and the spacing between the rotation center line of the active roller and the rotation center line of the treadmill head frame is in the range of 0-25 mm.

[0012] In the above technical solution, preferably, the treadmill head frame includes an outer end cross bar and support arms arranged at both ends of the outer end cross bar, and the two support arms are rotatably connected to both sides of the front end of the treadmill main body frame respectively.

[0013] In the above technical solution, preferably, the driving unit is rotatably connected to the outer end cross bar.

[0014] In the above technical solution, preferably, the driving unit is rotatably connected to the bottom surface of the outer end cross bar.

[0015] In the above technical solution, preferably, the driving unit is connected to a screw rod in a transmission manner, and the treadmill main body frame is rotatably connected to a screw sleeve threadedly connected to the screw rod;

[0016] The driving unit includes an outer shell, a motor and a transmission gear arranged in the outer shell. The outer shell is rotatably arranged at the outer end of the treadmill head frame. The transmission gear is meshed with a gear on the motor output shaft to connect the two in transmission. The screw is fixedly connected to the transmission gear.

[0017] In the above technical solution, preferably, the front end of the treadmill main body frame includes an inner end cross bar, and the screw sleeve is rotatably connected to the inner end cross bar.

[0018] In the above technical solution, preferably, the front end of the treadmill main body frame includes an inner end cross bar, and the screw sleeve is rotatably connected to the bottom surface of the inner end cross bar.

[0019] In the above technical solution, preferably, the screw sleeve includes an inner cavity with an internal thread, and one end of the screw rod penetrates into the inner cavity and is connected to the inner cavity thread.

[0020] In the above technical solution, preferably, a first connecting member is fixedly provided at the outer end of the treadmill head frame, the first connecting member includes a first built-in cavity, and at least a part of the driving unit is arranged in the first built-in cavity and is rotatably connected to a pin or a bolt passing through the first connecting member.

[0021] In the above technical solution, preferably, a second connecting piece is fixedly provided at the front end of the treadmill main body frame, the second connecting piece includes a second built-in cavity, the inner end of the screw sleeve is arranged in the second built-in cavity and is rotatably connected to a pin shaft or a bolt passing through the second connecting piece.

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

[0023] The front part of the treadmill of the utility model can be turned over as a whole, and when it turns over, it can drive the front shell of the treadmill to turn over synchronously, so that the front shell of the treadmill avoids the front and rear range of movement of the user's feet when running, and prevents the user from kicking the front shell of the treadmill when running. At the same time, because the user will not kick the front shell of the treadmill, the range of movement of the user on the running platform is increased;

[0024] Compared with the reversible support feet, the reversible length of the present application is longer, so that the front platform of the treadmill can be higher and the adjustable slope range of the treadmill is larger;

[0025] After the front part of the treadmill is flipped down as a whole, it forms a "panoramic treadmill" effect, which is more beautiful overall. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the utility model.

[0027] Figure 2 It is a schematic diagram of the partial structure of the front part of the utility model.

[0028] Figure 3 It is a schematic diagram of the partial structure of the front part of the utility model from another perspective.

[0029] Figure 4 This is a schematic diagram of the utility model in which the motor is arranged on the head frame of the treadmill.

[0030] Figure 5 This is a schematic diagram of the utility model in which the motor is arranged on the main frame of the treadmill. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementations:

[0032] See also Figure 1-Figure 5 A treadmill with a lifting structure includes a treadmill main frame 1 and a treadmill head frame 2 rotatably connected to the treadmill main frame 1, that is, the present application divides the existing common treadmill frame into two parts: the treadmill main frame 1 and the treadmill head frame 2, and uses the treadmill head frame 2 as a lifting structure. The front end of the treadmill is lifted by flipping the treadmill head frame 2, so that the treadmill running platform is tilted for climbing exercise.

[0033] In the present embodiment, the front end of the treadmill main frame 1 is rotatably configured with an active roller, and the rear end is rotatably configured with a driven roller, and the running belt 11 is sleeved on the active roller and the driven roller. The design here is the same as the existing design. In fact, the setting positions of the active roller, the driven roller and the running belt in the existing treadmill are the same or similar to those of the present application. After the design improvement of the present application, for users, the running-related effects will not be reduced at all.

[0034] As for the treadmill head frame 2, in this embodiment, it includes an outer end cross bar 21 and support arms 22 fixed to both ends of the outer end cross bar 21. The two support arms 22 can be fixed to the two ends of the outer end cross bar 21 by welding, integral molding or bolts, and the other ends of the two support arms 22 are respectively rotatably connected to the two sides of the front end of the treadmill main frame 1, such as Figure 1 shown.

[0035] As for the driving unit 3, it is used to provide power output. As one of the options, it includes an outer shell and a motor and a transmission gear installed in the outer shell. The outer shell is divided into a part for accommodating the motor and a part for accommodating the transmission gear, wherein the front end of the part for accommodating the transmission gear is rotatably connected to the outer end cross bar.

[0036] In this embodiment, a first connecting member 23 is fixed on the bottom surface of the outer end cross bar 21. The first connecting member 23 can be a metal bent member, which includes a first built-in cavity 231. The front end of the part accommodating the transmission gear is arranged in the first built-in cavity 231 and is rotatably connected to a pin shaft or a bolt passing through the first connecting member 23.

[0037] Therefore, when the motor and the transmission gear are in transmission cooperation with each other, the entire drive unit (including the outer shell) forms a rotational cooperation with the outer end cross bar.

[0038] Furthermore, a screw rod 4 is fixed on the transmission gear, and the screw rod 4 passes through the outer shell and extends to the outside. The component that cooperates with the screw rod 4 is a screw sleeve 5, and the screw sleeve 5 is rotatably connected to the front end of the treadmill main body frame 1.

[0039] Specifically, the front end of the treadmill main frame 1 includes an inner cross bar 12, and a second connecting member 13 is fixedly provided on the bottom surface of the inner cross bar 12. The second connecting member 13 can be a metal bent member, which includes a second built-in cavity 131. The inner end of the screw sleeve 5 is arranged in the second built-in cavity 131 and is rotatably connected to a pin shaft or a bolt passing through the second connecting member 13. Thus, a rotational fit is formed between the screw sleeve 5 and the inner cross bar 12.

[0040] In this embodiment, the screw sleeve 5 includes an inner cavity with an internal thread, and one end of the screw rod 4 penetrates into the inner cavity and is connected with the inner cavity thread. When the motor is started, the screw rod 4 is driven to rotate. Relying on the threaded cooperation between the screw rod 4 and the screw sleeve 5, and the corresponding rotation cooperation form, when the screw rod 4 rotates in one direction, the two move in a gradually contracting form. At this time, the treadmill head frame 2 flips around the treadmill main frame 1, thereby lifting the front end of the treadmill platform and tilting the treadmill platform; when the screw rod 4 rotates in the opposite direction, the two open in a gradually separated form. At this time, the treadmill head frame 2 flips around the treadmill main frame 1, thereby lowering the front end of the treadmill platform and returning the treadmill platform to a horizontal state.

[0041] As we all know, when a user is running, there cannot be any obstructing parts within the range of the forward and backward movement of his feet. The front shell of the existing treadmill limits the user to move only within a certain range of the running belt. Under the same size of running belt, the design improvement of this application can provide the user with a more sufficient range of movement, which is equivalent to lengthening the length of the running belt. This is an increased effect at the same cost.

[0042] Compared with the reversible support feet, the reversible head frame of the treadmill greatly increases the length of the "rotating arm". The longer the "rotating arm", the higher the height that can be lifted, and the more slope modes available for users to choose, and the support effect remains after lifting.

[0043] After the front part of the treadmill is flipped down as a whole, from the perspective of the user standing on the treadmill, the front part of the treadmill is hidden under the treadmill platform, which creates a "panoramic treadmill" effect visually, bringing visual effects like a full-screen mobile phone and a panoramic sunroof, and is more beautiful overall.

[0044] To facilitate the support of the treadmill head frame 2, in this embodiment, a plurality of support wheels 24 are arranged at the front end of the treadmill head frame 2. As one option, a support wheel 24 can be installed on both sides of the front end of the treadmill head frame 2 respectively.

[0045] As for the driving structure of the running belt, in this embodiment, it is driven by a motor 8, and the motor 8 can be fixed on the treadmill head frame 2 or the treadmill main frame 2, such as Figure 4 , Figure 5 shown.

[0046] When the motor 8 is fixed on the treadmill head frame 2, when the treadmill head frame 2 is flipped, the motor 8 flips accordingly, and the active roller matched with the running belt needs to rotate continuously to provide the power required for the running belt movement. Therefore, as a preference, the rotating connection point of the active roller and the treadmill head frame 2 is designed to be concentric, so that no matter how the motor 8 flips, the power required by the active roller can always be stably provided.

[0047] In this embodiment, a belt 81 or a chain is provided between the active roller and the motor 8 so that the two are rotationally matched. Since the belt or the chain has a certain tension and a certain controllable elongation range, especially the belt, as one of the options, the rotation connection point between the active roller and the treadmill head frame 1 may not be concentric, but the deviation should not be too large. In this embodiment, the spacing between the rotation centerline of the active roller and the rotation centerline of the treadmill head frame 2 is in the range of 0-25 mm.

[0048] When the motor 8 is fixed on the main frame 1 of the treadmill, the active roller and the motor 8 are directly connected by a belt 81 or a chain to form a rotational fit between the two. In this way, the motor 8 always keeps synchronous and stationary with the treadmill.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions 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 A main frame of the treadmill, wherein a driving roller is rotatably arranged at the front end thereof, and a driven roller is rotatably arranged at the rear end thereof, and a running belt is sleeved on the driving roller and the driven roller; and A treadmill head frame, which is rotatably connected to the front end of the treadmill main frame, and has a first position that makes the treadmill platform in a horizontal state and a second position that makes the treadmill platform in an inclined state; The outer end of the treadmill head frame is rotatably connected to a driving unit, and the spacing between the rotation center line of the active roller and the rotation center line of the treadmill head frame is in the range of 0-25 mm.

2. The treadmill with a lifting structure according to claim 1, characterized in that: The treadmill head frame comprises an outer end cross bar and support arms arranged at both ends of the outer end cross bar, and the two support arms are rotatably connected to the two sides of the front end of the treadmill main body frame respectively.

3. The treadmill with a lifting structure according to claim 2, characterized in that: The driving unit is rotatably connected to the outer end cross bar.

4. The treadmill with a lifting structure according to claim 3, characterized in that: The driving unit is rotatably connected to the bottom surface of the outer end cross bar.

5. The treadmill with a lifting structure according to claim 1, characterized in that: The driving unit is connected to a screw rod in a transmission manner, and the treadmill main body frame is rotatably connected to a screw sleeve threadedly connected to the screw rod; The driving unit includes an outer shell, a motor and a transmission gear arranged in the outer shell. The outer shell is rotatably arranged at the outer end of the treadmill head frame. The transmission gear is meshed with a gear on the motor output shaft to connect the two in transmission. The screw is fixedly connected to the transmission gear.

6. The treadmill with a lifting structure according to claim 5, characterized in that: The front end of the treadmill main body frame includes an inner end cross bar, and the screw sleeve is rotatably connected to the inner end cross bar.

7. The treadmill with a lifting structure according to claim 5, characterized in that: The front end of the treadmill main body frame includes an inner end cross bar, and the screw sleeve is rotatably connected to the bottom surface of the inner end cross bar.

8. The treadmill with a lifting structure according to any one of claims 5 to 7, characterized in that: The screw sleeve includes an inner cavity with internal threads, and one end of the screw rod penetrates into the inner cavity and is connected with the inner cavity thread.

9. The treadmill with a lifting structure according to claim 1, characterized in that: A first connecting piece is fixedly provided at the outer end of the treadmill head frame, and the first connecting piece includes a first built-in cavity. At least a part of the driving unit is arranged in the first built-in cavity and is rotatably connected to a pin shaft or a bolt passing through the first connecting piece.

10. The treadmill with a lifting structure according to claim 5, characterized in that: A second connecting piece is fixedly provided at the front end of the treadmill main body frame. The second connecting piece includes a second built-in cavity. The inner end of the screw sleeve is arranged in the second built-in cavity and is rotatably connected to a pin shaft or a bolt passing through the second connecting piece.

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