Fitness device with adjustable weight

Abstract

An adjustable weight fitness device includes: a handle; two weight mechanisms respectively disposed at both ends of the handle, each weight mechanism having one or more weights disposed on its outer side. Each weight mechanism has: a main body; the weights disposed on the outer side of the main body; a rotating disc disposed in the main body, the handle being able to drive the rotating disc to rotate; at least one or more fasteners disposed in the main body or between the main body and the weights, the fasteners being able to engage the weights when the rotating disc rotates. When the rotating disc does not engage the fasteners, the weight mechanism releases one or more of the weights. This allows for adjustment of the weight of the fitness device.

Claims

1. An adjustable weight fitness device, comprising: a handle; two weight mechanisms respectively disposed at two ends of the handle; a first weight block disposed on the outer side of each weight mechanism; each weight mechanism having: a main body, which is hollow inside; one end of the handle extending into the main body; the first weight block disposed on the outer side of the main body; a rotating disk disposed in the main body; the handle can drive the rotating disk to rotate; at least one first fastener disposed in the main body, which can be moved out of the main body and back into the main body; when the rotating disk rotates, it can push one end of the first fastener to move out of the main body and into the first weight block; when the rotating disk does not push the first fastener, the first fastener moves back into the main body.

2. The fitness device as described in claim 1, wherein: Each of the first weights has a second weight disposed on its outer side; each counterweight mechanism has at least one first pin and at least one second fastener, the first pin being disposed in the main body in a manner that allows it to be removed and repositioned; the second fastener being disposed in the first weight in a manner that allows it to be removed and repositioned; when the rotating disk rotates, it can push one end of the first pin out of the main body and into the first weight, the first pin pushing the second fastener, causing one end of the second fastener to be removed from the first weight and into the second weight; when the rotating disk does not push the first pin, the first pin repositions back into the main body; the second fastener repositions back into the first weight.

3. The fitness device as described in claim 2, wherein: Each of the second weights has a third weight disposed on its outer side; each counterweight mechanism has at least one second pin and at least one third fastener, the second pin being disposed in the main body in a manner that allows it to be removed and moved back into the main body; the third fastener being disposed in the second weight in a manner that allows it to be removed and moved back into the second weight; when the rotating disk rotates, it can push one end of the second pin out of the main body and into the first weight, and the second pin causes one end of the third fastener to be removed out of the second weight and into the third weight; when the rotating disk does not push the second pin, the second pin moves back into the main body; the third fastener moves back into the second weight.

4. The fitness device as described in claim 3, wherein: Each counterweight mechanism also has at least one linkage pin, which is disposed in the first weight in a manner that allows it to be moved out and back into the first weight; when one end of the second top pin moves into the first weight, the linkage pin is pushed by the first top pin, and one end moves out of the first weight and into the second weight, thereby pushing the third fastener; when the rotating disc does not push the second top pin, the linkage pin moves back into the first weight.

5. The fitness device as described in claim 1, wherein: The main body has an opening on its bottom surface; one end face of the rotating disk has a plurality of gripping parts arranged in a ring; a plurality of notches are formed between the gripping parts; at least one inner weight has at least one connecting part, the inner weight is disposed in the main body and corresponds to the rotating disk; when the handle is rotated so that one of the gripping parts of the rotating disk engages with the connecting part of the inner weight, the rotating disk can grasp the inner weight; when one of the notches of the rotating disk is aligned with the connecting part of the inner weight, the rotating disk cannot grasp the inner weight, and the inner weight can detach from the main body through the opening.

6. The fitness device as described in claim 1 or 5, wherein: The bottom surface of the main body has an opening; each counterweight mechanism includes a disc-shaped gripper disposed in the main body; the handle can drive the gripper to rotate, and one end face of the gripper has a plurality of gripping portions arranged in a ring; a plurality of notches are formed between the gripping portions; at least one inner weight has at least one connecting portion, the inner weight is disposed in the main body and corresponds to the gripper; when the handle is rotated so that one of the gripping portions of the gripper engages with the connecting portion of the inner weight, the gripper can grasp the inner weight; when one of the notches of the gripper is aligned with the connecting portion of the inner weight, the gripper cannot grasp the inner weight, and the inner weight can detach from the main body through the opening.

7. The fitness device as described in claim 1, wherein: One end face of the rotating disc is provided with at least one arc-shaped ramp, the arc length of which is less than 360 degrees; the first fastener is pushed by the ramp.

8. The fitness device as described in claim 2, wherein: One end face of the rotating disk is provided with at least two concentric ramps, the arc length of which is less than 360 degrees; the first fastener and the first top pin are respectively pushed by the two ramps.

9. The fitness device as described in claim 3, wherein: One end face of the rotating disk is provided with at least three concentric ramps, the arc length of each of the three ramps being less than 360 degrees; the first fastener, the first top pin, and the second top pin are respectively pushed by the three ramps.

10. The fitness device as claimed in claim 1, wherein: At least one soft element is disposed in the first weight; the first fastener presses against the soft element when it extends into the first weight.

11. The fitness device as described in claim 2, wherein: A plurality of soft elements are disposed in the first weight and the second weight; when the first fastener extends into the first weight, it presses against one of the soft elements; when the second fastener extends into the second weight, it presses against one of the soft elements.

12. The fitness device as described in claim 3, wherein: A plurality of soft elements are disposed in the first, second and third weights; when the first fastener extends into the first weight, it presses against one of the soft elements; when the second fastener extends into the second weight, it presses against one of the soft elements; when the third fastener extends into the third weight, it presses against one of the soft elements.

13. The fitness device as described in claim 4, wherein: The outer surface of the main body has a plurality of through holes; the first fastener, the first top pin and the second top pin are respectively disposed in the through holes; the first weight, the second weight and the third weight are provided with a plurality of buckle holes; the second fastener, the third fastener and the linkage pin are movably disposed in the buckle holes respectively.

14. The fitness device as described in claim 1, wherein: At least one elastic element is disposed in the main body, and its elastic force acts elastically on the first fastener; when the first fastener is not subjected to external force, it elastically moves back into the main body.

15. The fitness device as described in claim 2, wherein: A plurality of elastic elements are disposed on the main body and the first weight, and their elastic forces are respectively applied to the fastener and the first top pin; when the first fastener and the first top pin are not subjected to external force, they elastically move back into the main body; when the second fastener is not subjected to external force, it elastically moves back into the first weight.

16. The fitness device as described in claim 3, wherein: A plurality of elastic elements are disposed in the main body, the first weight and the second weight, and their elastic forces act elastically on the fastener and the top pin respectively; when the first fastener, the first top pin and the second top pin are not subjected to external force, they elastically move back into the main body; when the second fastener is not subjected to external force, it elastically moves back into the first weight; when the third fastener is not subjected to external force, it elastically moves back into the second weight.

17. The fitness device as described in claim 3, wherein: The main body and the first weight are detachably connected; the first weight and the second weight are detachably connected; the second weight and the third weight are detachably connected.

18. The fitness device as claimed in claim 1, wherein: a window is provided on the periphery of the main body; a weight value is provided on the rotating wheel, and the window can display the weight value.

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