Fitness trainer

By introducing rollers, brake wheels, and a one-way transmission structure into ab wheel-type fitness equipment, combined with a manual or motor-controlled braking structure, the problem of high operational difficulty has been solved, enabling autonomous control of training difficulty and improving safety.

CN223930622UActive Publication Date: 2026-02-24ZHEJIANG XINRAN IND & TRADE CO LTD
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Patent Information

Application Number
CN202520425191.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-24
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing ab wheel fitness equipment is difficult to operate, making it hard to control the training intensity independently and increasing the risk of injury.

Method used

A fitness trainer was designed, which uses rollers, brake wheels and a one-way transmission structure, combined with a manual or motor-controlled braking structure to achieve resistance adjustment and training phase switching.

Benefits of technology

By adjusting resistance and switching training phases, users can control the difficulty of their training, reduce the risk of injury, and improve training results.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223930622U_ABST
    Figure CN223930622U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of fitness equipment, in particular to a fitness trainer which comprises a body, a roller is mounted on the body, a shaft of the roller is rotatably connected with the body, one part of the roller extends out of the bottom of the body, a brake wheel is rotatably sleeved on the shaft of the roller, and the brake wheel is connected with the shaft of the roller through a one-way transmission structure. The body is further provided with a manually-controlled brake structure matched with the brake wheel. When a user holds the device to carry out fitness training, the trainer is placed in front of the body, bends and grabs the body with one hand, the shape of the body is controlled through muscles of the body, the trainer is slowly pushed forwards, and at the moment, the first stage of training can be carried out, and the second stage of training can be carried out by pulling the trainer backwards. In the second stage, the trainer can smoothly roll backwards, backward rolling is not affected by a brake structure, and the training difficulty can be autonomously controlled by controlling the resistance of a brake.
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Description

Technical Field

[0001] This utility model relates to the field of fitness equipment, specifically fitness training equipment. Background Technology

[0002] Ab wheel fitness machines are small, push-type exercise devices that can work muscles and joints and help with weight loss. They are generally made of high-quality engineering plastics, with a simple and attractive design, are sturdy and durable, and easy to use. They are used to exercise various parts of the body, such as the abdomen, waist, hips, and arms, to reduce excess fat. Because they require little space, they are convenient for home use.

[0003] Most ab wheel fitness machines currently available are operated with two hands, with very few that can be operated with one hand. Moreover, they are very difficult to operate, making it easy to lose control of the speed and get injured, and it is difficult to independently control the training difficulty. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as high operational difficulty and difficulty in independently controlling training difficulty, this utility model provides a fitness training device.

[0005] The technical solution of this utility model is as follows:

[0006] This utility model provides a fitness training device, including a main body with rollers mounted on it. The rollers' axles are rotatably connected to the main body. A portion of the rollers extends from the bottom of the main body. A brake wheel is also rotatably mounted on the roller's axle. The brake wheel is connected to the roller's axle via a one-way transmission structure. The main body also features a manually controlled braking mechanism that works in conjunction with the brake wheel.

[0007] Furthermore, the main body includes a base and a housing, with the housing fixedly mounted on the upper side of the base, and the roller shaft rotatably connected to the base.

[0008] Furthermore, a wear-resistant pad is fixedly installed at the bottom of the base on the side of the roller.

[0009] Furthermore, the unidirectional transmission structure uses a unidirectional bearing.

[0010] Furthermore, the unidirectional transmission structure is a ratchet and ratchet assembly.

[0011] Furthermore, the brake structure includes a rotating block having a hinged end that is rotatably connected to the body, a brake pad mounting surface facing the brake wheel, a brake pad being fixedly mounted on the brake pad mounting surface, and a drive end having a portion of the drive end extending to the front side of the body.

[0012] Furthermore, it includes a rotating plate, one end of which is rotatably connected to the main body. A brake pad is fixedly installed on the side of the rotating plate facing the brake wheel. The other end of the rotating plate is connected to a push block, which is threaded onto a lead screw. The lead screw is connected to a motor inside the main body, and the main body is equipped with a control module connected to the motor.

[0013] Furthermore, the control module has a power supply, a controller, and a control button. The power supply and controller are installed inside the main body, and part of the control button extends out from the side of the housing.

[0014] Furthermore, the rear side of the main body is connected to a traction plate, and the main body and the plate are detachably connected. A sliding component is installed at the bottom of the plate.

[0015] Furthermore, the push block is slidably mounted on the rotating plate, and grooves are provided on both sides of the rotating plate. The push block is provided with a sliding part that cooperates with the groove.

[0016] The beneficial effects achieved by this utility model are as follows:

[0017] When using this device for fitness training, the user places the trainer in front of them, leans forward, and grasps the main body with one hand. Using their muscles to control their body shape, they slowly push the trainer forward, initiating the first stage of training. After the trainer rolls forward a certain distance, the braking mechanism increases the resistance of the brake wheel. Due to the one-way transmission structure, this resistance is transmitted to the roller, increasing the resistance to continue pushing the trainer forward. This resistance helps the user control the trainer's speed, allowing for better stopping. Once the brake wheel is completely stopped, the user can keep the trainer on the ground even when relaxing their body. The user then continues to exert force, pulling the trainer backward to begin the second stage of training. In the second stage, the trainer rolls smoothly backward, unaffected by the braking mechanism. By controlling the braking resistance, the user can autonomously control the difficulty of the training. Attached Figure Description

[0018] Figure 1 This is a top view of one embodiment of the present invention.

[0019] Figure 2 This is a rear view structural schematic diagram of one embodiment of the present invention.

[0020] Figure 3 This is a first cross-sectional structural schematic diagram of one embodiment of the present invention.

[0021] Figure 4 This is a second cross-sectional structural schematic diagram of one embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the internal structure of one embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the first embodiment of the brake structure of this utility model.

[0024] Figure 7This is a schematic diagram of the second embodiment of the brake structure of this utility model.

[0025] Figure 8 This is a schematic diagram showing the connection between the main body and the tray in one embodiment of this utility model.

[0026] Figure 9 This is a training state diagram of one embodiment of this utility model. Detailed Implementation

[0027] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0028] like Figures 1-9 As shown, this utility model provides a fitness training device, including a main body 1. The main body 1 includes a base 101 and a housing 102. The housing 102 is fixedly installed on the upper side of the base 101. A roller 2 is installed on the base 101. The roller's shaft is rotatably connected to the base, preferably through a bearing. A part of the roller extends from the bottom of the base. A brake wheel 3 is also rotatably mounted on the roller's shaft. The brake wheel 3 is connected to the roller 2's shaft through a one-way transmission structure. The housing 102 has a front end and a rear end. The main body is also equipped with a manually controlled braking structure that cooperates with the brake wheel. Controlling the braking structure can increase the resistance of the brake wheel's rotation relative to the main body. After the brake wheel is completely stopped by the braking structure, the roller can no longer rotate towards the front end. At this time, the roller can be braked. The roller can then rotate towards the rear end of the housing 102. Through this principle, after the brake wheel is completely stopped by the braking structure, the training device cannot continue to roll forward on the ground, but it can roll backward.

[0029] like Figure 9 As shown, when a user holds this device for fitness training, they place the trainer in front of them, bend over, and grasp the main body 1 with one hand. Using their muscles, they control their body shape and slowly push the trainer forward, thus beginning the first stage of training. After the trainer rolls forward a certain distance, the braking structure increases the resistance of the brake wheel. Due to the one-way transmission structure, the resistance is transmitted to the roller, increasing the resistance to continue pushing the trainer forward. This resistance helps the user control the trainer's speed and better stop it from moving forward. After the brake wheel is completely stopped by the braking structure, the user can keep the trainer on the ground and prevent it from moving forward even if they relax their body. The user then continues to exert force and pulls the trainer backward to begin the second stage of training. In the second stage, the trainer can roll backward smoothly without being affected by the braking structure. By controlling the resistance of the brake, the user can control the difficulty of the training independently.

[0030] like Figure 6As shown, a wear-resistant pad 4 is fixedly installed on the side of the roller at the bottom of the base 101. During use, even if the side of the base rubs against the ground, it can be protected by the wear-resistant pad, thus improving its service life. The wear-resistant pad is preferably made of a material with a smooth surface. When the wear-resistant pad comes into contact with the ground during use, it will not instantly increase the movement resistance of the trainer, allowing the user to better control the movement speed of the trainer.

[0031] like Figure 3 As shown, in the first embodiment of the one-way transmission structure, the shafts of the brake wheel and the roller are connected by a one-way bearing 5.

[0032] like Figure 4 As shown in the second embodiment of the unidirectional transmission structure, the shafts of the brake wheel and the roller are connected by a ratchet assembly 6.

[0033] like Figure 3 As shown, the first embodiment of the brake structure includes a rotating block 7. The rotating block has a hinged end 701 that is rotatably connected to the main body. A torsion spring is installed at the connection between the hinged end 701 and the main body. The rotating block has a brake pad mounting surface facing the brake wheel, and a brake pad 8 is fixedly mounted on the brake pad mounting surface. The rotating block also has a drive end 702. When no external force is applied to the drive end, the torque of the torsion spring prevents the brake pad from contacting the brake wheel. A portion of the drive end extends to the front side of the housing, and a window is opened in the housing corresponding to the position of the drive end. When the user holds the housing, they can press the drive end with their fingers to drive the rotating block to rotate around the hinged end, thereby causing the brake pad to squeeze the brake wheel to brake.

[0034] like Figure 7 As shown, the second embodiment of the brake structure includes a rotating plate 9. One end of the rotating plate 9 is rotatably connected to the main body. A brake pad is fixedly installed on the side of the rotating plate facing the brake wheel. The other end of the rotating plate is connected to a push block 10. The push block is threadedly mounted on a lead screw 11. The lead screw 11 is connected to a motor 12 inside the main body. The motor drives the lead screw to rotate, and the lead screw drives the push block to move through the threaded connection. The push block drives the rotating plate to move closer to the brake wheel for braking. The push block is slidably mounted on the rotating plate. Slide grooves 13 are provided on both sides of the rotating plate. The push block has a sliding part that cooperates with the slide groove. The push block rotates along the slide groove. When the other end of the plate moves, it presses the rotating plate closer to the brake wheel. It also includes a control module 14. The motor is connected to the control module 14. The control module has a power supply 141, a controller 142 and a control button 143. The power supply and controller are installed inside the main body. Part of the control button 143 extends out from the side of the housing. When the control button is pressed, the motor rotates forward and drives the push block to move through the lead screw. The push block drives the rotating plate closer to the brake wheel to brake. When the button is released, the motor reverses and the rotating plate moves away from the brake wheel. With this design, the braking force can be controlled by the control button, making the control more flexible and effortless.

[0035] like Figure 8As shown, the rear side of the main body is connected to the support plate 15, and the main body and the support plate are detachably connected. The upper surface of the support plate has a concave arc surface, and the bottom of the support plate is equipped with a sliding component 16. The sliding component can be a sliding wheel or a ball bearing. If a sliding wheel is selected, a universal sliding wheel is preferred. When the user is training, the support plate can support the arm, reducing the difficulty of training. The support plate can be removed at any time according to the training situation.

[0036] The above-described embodiments of this utility model do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A fitness training device, characterized in that: The device includes a main body, on which a roller is mounted. The roller's shaft is rotatably connected to the main body. A portion of the roller extends from the bottom of the main body. A brake wheel is also rotatably mounted on the roller's shaft. The brake wheel is connected to the roller's shaft via a one-way transmission structure. The main body also features a manually controlled braking structure that works in conjunction with the brake wheel.

2. The fitness training device according to claim 1, characterized in that: The main body includes a base and a housing. The housing is fixedly installed on the upper side of the base, and the roller shaft is rotatably connected to the base.

3. The fitness training device according to claim 2, characterized in that: A wear-resistant pad is fixedly installed at the bottom of the base on the side of the roller.

4. The fitness training device according to claim 1, characterized in that: The unidirectional transmission structure uses a unidirectional bearing.

5. The fitness training device according to claim 1, characterized in that: The unidirectional transmission structure is a ratchet and ratchet assembly.

6. The fitness training device according to claim 1, characterized in that: The brake structure includes a rotating block with a hinged end that is rotatably connected to the main body. The rotating block has a brake pad mounting surface facing the brake wheel, on which a brake pad is fixedly mounted. The rotating block also has a drive end, a portion of which extends to the front side of the main body.

7. The fitness training device according to claim 1, characterized in that: The brake structure includes a rotating plate, one end of which is rotatably connected to the main body. A brake pad is fixedly installed on the side of the rotating plate facing the brake wheel. The other end of the rotating plate is connected to a push block, which is threaded onto a lead screw. The lead screw is connected to a motor inside the main body, and the main body is equipped with a control module connected to the motor.

8. The fitness training device according to claim 7, characterized in that: The control module has a power supply, a controller, and a control button. The power supply and controller are installed inside the main body, and part of the control button extends out from the side of the housing.

9. The fitness training device according to claim 1, characterized in that: The rear side of the main body is connected to a traction plate, and the main body and the plate are detachably connected. A sliding component is installed at the bottom of the plate.

10. The fitness training device according to claim 8, characterized in that: The push block is slidably mounted on the rotating plate. Slide grooves are provided on both sides of the rotating plate, and the push block is provided with a sliding part that cooperates with the slide groove.