Treadmill buffer wheel device and treadmill

Abstract

The utility model provides a treadmill buffer wheel device and a treadmill, and aims to solve the problem that in the prior art, a treadmill is in hard contact with the ground, and knees are easily injured during running. On the first aspect, the utility model provides a treadmill buffer wheel device which comprises at least one group of buffer wheels, and each buffer wheel comprises a hub and an inflatable outer wheel arranged on the outer side of the hub; the hub comprises a framework and a central rotating shaft arranged in the center of the framework; the inflatable outer wheel comprises a flexible or elastic rolling body arranged on the central rotating shaft, and an air cavity is formed in the rolling body; and the outer surface of the rolling body comprises a deformation part which is pressed to deform and has resetting capability. According to the buffering wheel device of the treadmill, the buffering wheel provided with the air cavity is adopted, when the buffering wheel device is subjected to large pressure, the deformation portion, making contact with the ground, of the buffering wheel deforms, the buffering wheel can become flat, and therefore the buffering effect is achieved; on one hand, the buffer wheels can play a role in buffering, and on the other hand, the treadmill can be moved.

Description

Technical Field

[0001] The utility model belongs to the technical field of treadmills, and particularly relates to a treadmill buffer wheel device and a treadmill. Background Art

[0002] A treadmill is a fitness device that can replace outdoor running. Users can run on the treadmill. However, at present, in order to ensure safety and service life, the frame of the treadmill is made of metal, and the treadmill is in hard contact with the ground. When a user runs on the treadmill, it is equivalent to running on a relatively hard ground, which is likely to damage the knees.

[0003] In addition, when the treadmill is in hard contact with the ground and the ground is uneven, the treadmill is likely to shake and is not stable during running. When the treadmill is in hard contact with the ground, there is likely to be an impact during running, resulting in a relatively large noise. When the treadmill is in hard contact with the ground, parts are likely to become loose under continuous impact, affecting the service life. Summary of the Utility Model

[0004] The utility model provides a treadmill buffer wheel device and a treadmill, aiming to solve the problem that the existing treadmill is in hard contact with the ground and is likely to damage the knees during running.

[0005] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0006] In a first aspect, the utility model provides a treadmill buffer wheel device, which includes at least one group of buffer wheels. Each buffer wheel includes a hub and an inflated outer wheel arranged outside the hub. The hub includes a skeleton and a central rotating shaft arranged at the center of the skeleton.

[0007] The inflated outer wheel includes a flexible or elastic rolling body arranged on the central rotating shaft. An air cavity is arranged inside the rolling body. The outer surface of the rolling body includes a deformed part that is deformed under pressure and has a resetting ability.

[0008] A further improved scheme: The inflated outer wheel is in a drum shape, and a concave annular groove is surrounded in the middle of the outer surface of the inflated outer wheel. The deformed part is a protrusion on both sides of the annular groove, and a hollow deformation cavity communicated with the air cavity is arranged inside the protrusion.

[0009] Based on the above scheme, a concave annular groove is surrounded in the middle of the outer surface of the drum-shaped inflated outer wheel, which can make the protrusion have a larger buffer height and improve the buffer effect.

[0010] A further improved scheme: Each group of the inflated outer wheels includes two buffer wheels, and the two buffer wheels share a central rotating shaft, and the two buffer wheels are respectively located at both ends of the central rotating shaft.

[0011] Based on the above solution, two buffer wheels share a central rotating shaft, which enables the two buffer wheels to rotate synchronously when rolling.

[0012] A further improved solution: A trachea is provided between the two buffer wheels, and an elastic airbag is provided at the center of the trachea.

[0013] Based on the above solution, since the buffer wheels need to have a certain load-bearing capacity when moving the treadmill, the material of the buffer wheels has a certain strength, such as rubber wheels; since rubber wheels are not easily deformed after inflation, by providing a deformable elastic airbag, the gas in the rubber wheels can enter the elastic airbag. During the running process, when the pressure increases, the gas in the buffer wheels enters the elastic airbag, and when the pressure decreases, the gas in the elastic airbag returns to the buffer wheels, thus achieving the buffering effect; on the one hand, it ensures the strength of the buffer wheels, and on the other hand, it has a good buffering effect.

[0014] A further improved solution: The trachea and the elastic airbag are provided on the central rotating shaft, and the central rotating shaft, the buffer wheels, the trachea and the elastic airbag rotate synchronously.

[0015] Based on the above solution, by arranging the trachea and the elastic airbag on the central rotating shaft, the trachea can be prevented from winding and knotting.

[0016] A further improved solution: An inflation nozzle is provided on the elastic airbag.

[0017] Based on the above solution, by providing an inflation nozzle, the elastic airbag can be inflated.

[0018] A further improved solution: Each buffer wheel is configured with a corresponding elastic airbag, and the elastic airbag is provided on one side of the buffer wheel, and a trachea is connected between each buffer wheel and the corresponding elastic airbag.

[0019] Based on the above solution, by providing an elastic airbag on each buffer wheel, the two buffer wheels can be independent of each other and rotate out of sync, which is convenient for moving the treadmill.

[0020] A further improved solution: The rolling body is spherical.

[0021] In the second aspect, the present invention provides a treadmill, including a machine body and a treadmill buffer wheel device according to any one of the above solutions provided on the machine body.

[0022] A further improved solution: The machine body includes a frame body and a belt-type runway rotatably provided on the frame body. The frame body includes a front frame body with handrails and a bottom frame provided with a belt-type runway that rotates under the action of a motor. The bottom frame is arranged to gradually incline downward from front to back; the buffer wheels are provided at the bottom of the bottom frame.

[0023] Further improved solution: A front buffer wheel assembly located at the front of the chassis and / or a rear buffer wheel assembly located at the rear of the chassis are provided on the chassis.

[0024] Based on the above solution, since the load-bearing is mainly on the rear wheels, by setting the buffer wheels as the rear wheels, a better buffering effect can be achieved.

[0025] The beneficial effects of the present utility model are as follows:

[0026] In the treadmill buffer wheel device of the present utility model, a buffer wheel configured with an air cavity is adopted. When subjected to a large pressure, the deformed part of the buffer wheel in contact with the ground deforms, causing the buffer wheel to become flat, thereby achieving a buffering effect; on the one hand, the buffer wheel can play a buffering role, and on the other hand, it also plays a role in moving the treadmill.

[0027] In addition, by setting the buffer wheels, the knees can be protected, the damage to the knees can be reduced, and running is more comfortable; by setting the buffer wheels, hard contact is also reduced, and the noise caused by hard impacts during running is reduced; in addition, due to the reduction of hard impacts, the parts are not easily loosened and the service life is high. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of the treadmill chassis in the present utility model.

[0030] Figure 2 It is a schematic structural diagram of the buffer wheel assembly in the present utility model.

[0031] Figure 3 It is a schematic structural diagram of the treadmill chassis in the first solution of the present utility model.

[0032] Figure 4 It is a schematic structural diagram of the buffer wheel assembly in the first solution of the present utility model.

[0033] Figure 5 It is a schematic structural diagram of the treadmill chassis in the second solution of the present utility model.

[0034] Figure 6 It is a schematic structural diagram of the buffer wheel assembly in the second solution of the present utility model.

[0035] Explanation of the reference numerals in the drawings:

[0036] 1 - Underframe; 2 - Rolling body; 21 - Annular groove; 22 - Protrusion; 23 - Air cavity; 3 - Elastic airbag; 4 - Air pipe; 5 - Central rotating shaft; 6 - Straps; 7 - Front wheel. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] As Figure 1 and Figure 2 shown, this embodiment provides a treadmill buffer wheel device, including at least one set of buffer wheels. The buffer wheel includes a hub and an inflated outer wheel provided on the outside of the hub; the hub includes a skeleton and a central rotating shaft 5 provided at the center of the skeleton;

[0039] The inflated outer wheel includes a flexible or elastic rolling body 2 provided on the central rotating shaft 5. An air cavity 23 is provided inside the rolling body 2; the outer surface of the rolling body 2 includes a deformed portion that is deformed under pressure and has a reset ability.

[0040] Specifically, the buffer wheel has a buffering effect when running on a treadmill and plays a role in moving the treadmill when carrying the treadmill; among them, the rolling body 2 can be in the shape of a sphere, a roller, a round cake, etc.; among them, the deformed portion of the rolling body 2 will deform when subjected to pressure, and the rolling body 2 resets when the pressure decreases, thereby achieving buffering.

[0041] One specific solution: The inflated outer wheel is in the shape of a roller, and a concave annular groove 21 is provided around the middle of the outer surface of the inflated outer wheel. The deformed portion is the protrusions 22 on both sides of the annular groove 21, and a hollow deformation cavity communicating with the air cavity 23 is provided inside the protrusions 22. Among them, the protrusions 22 are annular protrusions 22 for contacting the ground. Since the transverse area of the protrusions 22 is small, the buffering amplitude up and down is large and the buffering effect is good.

[0042] On the basis of any of the above solutions, the setting of the inflated outer wheel can also adopt but is not limited to the following solutions:

[0043] Solution 1:

[0044] Refer to Figure 3 and Figure 4, each group of the inflatable outer wheels includes two buffer wheels, and the two buffer wheels share a central rotating shaft 5, and the two buffer wheels are respectively located at both ends of the central rotating shaft 5. Among them, the two buffer wheels can be fixed on the central rotating shaft 5, and the central rotating shaft 5 can be rotatably arranged on the body of the treadmill through bearings.

[0045] On the basis of this solution, a trachea 4 is provided between the two buffer wheels, and an elastic airbag 3 is provided at the center of the trachea 4. Among them, the elastic airbag 3 can be integrally provided with the trachea 4, or two interfaces can be provided on the elastic airbag 3, and the two interfaces are respectively connected to two tracheas 4.

[0046] Specifically, the trachea 4 and the elastic airbag 3 are arranged on the central rotating shaft 5, and the central rotating shaft 5, the buffer wheels, the trachea 4 and the elastic airbag 3 rotate synchronously. The trachea 4 and the elastic airbag 3 can be fixed on the central rotating shaft by means of straps 6 or bonding.

[0047] Preferably, an inflation nozzle is provided on the elastic airbag 3, or an inflation nozzle can also be provided on the inflatable outer wheel.

[0048] Solution Two:

[0049] Refer to Figure 5 and Figure 6 , each buffer wheel is configured with a corresponding elastic airbag 3, and the elastic airbag 3 is arranged on one side of the buffer wheel, and a trachea 4 is connected between each buffer wheel and the corresponding elastic airbag 3.

[0050] Specifically, the elastic airbag 3 can be integrally provided with the trachea 4, or an interface connected to the trachea 4 can be provided on the elastic airbag 3.

[0051] Embodiment Two:

[0052] A treadmill, including a body and a treadmill buffer wheel device according to any one of the solutions in Embodiment One provided on the body.

[0053] Specifically, the body includes a frame and a belt-type runway rotatably arranged on the frame. The frame includes a front frame with handrails and a bottom frame 1 provided with a belt-type runway that rotates under the action of a motor. The bottom frame 1 is arranged to gradually incline downward from front to back; the buffer wheels are arranged at the bottom of the bottom frame 1. The belt-type runway includes two roller shafts and a transmission belt sleeved between the two roller shafts. One of the roller shafts rotates under the action of a motor, driving the transmission belt and the other roller shaft to rotate for running on the transmission belt.

[0054] Preferably, a front buffer wheel assembly located at the front of the bottom frame 1 and / or a rear buffer wheel assembly located at the rear of the bottom frame 1 are provided on the bottom frame 1. That is: buffer wheels are provided at both the front and rear of the bottom frame 1, or buffer wheels are only provided at the rear side of the bottom frame 1, and the front wheels 7 adopt ordinary rollers.

[0055] The present utility model will be further described below in conjunction with the working principle:

[0056] When running, when a person steps on the treadmill, the pressure borne by the buffer wheel increases, and the inflated outer wheel is deformed under pressure, causing the treadmill to sink; when jumping during the running process, the pressure borne by the buffer wheel decreases, the buffer wheel resets, and the treadmill rises, which can play a buffering role during running.

[0057] When the solution of the elastic airbag 3 is adopted, when a person steps on the treadmill, the pressure borne by the buffer wheel increases, the gas in the buffer wheel is squeezed into the elastic airbag 3, and the inflated outer wheel is deformed, causing the treadmill to sink; when jumping during the running process, the pressure borne by the buffer wheel decreases, the gas in the elastic airbag 3 flows back into the buffer wheel, the buffer wheel resets, and the treadmill rises, which can play a buffering role during running.

[0058] The present utility model is not limited to the above optional embodiments. On the premise of non-conflict, the various solutions can be arbitrarily combined; anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as the technical solutions fall within the scope defined by the claims of the present utility model, they all fall within the protection scope of the present utility model.

Claims

1. A treadmill buffer wheel device, characterized in that, Comprising at least one set of buffer wheels, each buffer wheel including a hub and an inflated outer wheel disposed outside the hub; the hub including a framework and a central rotating shaft disposed at the center of the framework; The inflated outer wheel includes a flexible or elastic rolling body disposed on the central rotating shaft, and an air chamber is provided inside the rolling body; the outer surface of the rolling body includes a deformed portion that is deformed under pressure and has a resetting ability.

2. The treadmill buffer wheel device according to claim 1, characterized in that: The inflated outer wheel is in the shape of a drum, and a concave annular groove is formed around the middle of the outer surface of the inflated outer wheel. The deformed portion is a protrusion on both sides of the annular groove, and a hollow deformation chamber communicating with the air chamber is provided inside the protrusion.

3. A treadmill buffer wheel device according to claim 1 or 2, characterized in that: Each set of the inflated outer wheels includes two buffer wheels, and the two buffer wheels share a central rotating shaft, and the two buffer wheels are respectively located at both ends of the central rotating shaft.

4. The treadmill buffer wheel device according to claim 3, characterized in that: A trachea is provided between the two buffer wheels, and an elastic airbag is provided at the center of the trachea.

5. A treadmill buffer wheel device according to claim 4, characterized in that: The trachea and the elastic airbag are disposed on the central rotating shaft, and the central rotating shaft, the buffer wheels, the trachea and the elastic airbag rotate synchronously.

6. The treadmill buffer wheel device according to claim 4, wherein: An inflation nozzle is provided on the elastic airbag.

7. The treadmill buffer wheel device according to claim 1, characterized in that: Each buffer wheel is configured with a corresponding elastic airbag, and the elastic airbag is disposed on one side of the buffer wheel, and a trachea is connected between each buffer wheel and the corresponding elastic airbag.

8. A treadmill, characterized in that: Comprising a machine body and a treadmill buffer wheel device according to any one of claims 1-7 disposed on the machine body.

9. A treadmill according to claim 8, wherein: The machine body includes a frame body and a belt-type runway rotatably disposed on the frame body. The frame body includes a front frame body with handrails and a bottom frame provided with a belt-type runway that rotates under the action of a motor. The bottom frame is inclined downward gradually from front to back; the buffer wheels are disposed at the bottom of the bottom frame.

10. A treadmill according to claim 9, characterized in that: The bottom frame is provided with a front buffer wheel assembly located at the front of the bottom frame and / or a rear buffer wheel assembly located at the rear of the bottom frame.

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