A sit-to-stand training device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI WEIJIANG EDUCATION TECHNOLOGY CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing technology, seated forward bend training lacks dedicated training equipment, the training conditions are limited and progress cannot be quantified, and traditional training methods pose a risk of injury.
A seated forward bend trainer was designed, comprising a floor frame, pedals, slide rails, slide bases, grips, a winding mechanism, and a connecting strap. Through the cooperation of the winding mechanism and the connecting strap, it provides diverse training conditions, supports active and assisted training modes, records training progress, and adjusts training intensity.
It provides safe and flexible training conditions, supports personalized training progress recording and low-risk breakthrough training, and is suitable for different training needs.
Smart Images

Figure CN224388002U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of physical training equipment, specifically to a seated forward bend training device. Background Technology
[0002] In the process of physical exercise, flexibility training is an essential basic training. Traditional flexibility training methods include forceful stretching and extreme weight-bearing leg presses. Forceful stretching may lead to muscle and ligament strains, while extreme weight-bearing leg presses may overload the body and cause joint damage. These traditional training methods lack progressiveness, have limited training effects, and are relatively risky.
[0003] For flexibility training, compared to the aforementioned training programs that carry a risk of injury, the sit-and-reach exercise offers the advantages of balancing effectiveness and safety. However, the sit-and-reach exercise involves relatively simple movements, there is a lack of specialized training equipment available, trainees lack auxiliary training methods, training conditions are limited, and individual training progress cannot be quantified. Therefore, this invention proposes a sit-and-reach exercise device. Utility Model Content
[0004] The purpose of this invention is to provide a seated forward bend training device to solve the above-mentioned problems.
[0005] This utility model achieves the above objectives through the following technical solutions:
[0006] This utility model provides a seated forward bend training device, including a floor frame, a pedal on one side of the floor frame, a slide rail on the floor frame, a slide seat slidably mounted on the slide rail, and a handle on the slide seat. The slide rail has scale lines, and a bracket is provided at one end of the slide rail away from the pedal. A rocker arm is rotatably connected to the bracket, and the rocker arm is provided with a winding mechanism. A connecting strap is wound around the handle, one end of which is fixed to the bracket, and the other end is fixed to the winding mechanism. The winding mechanism is used to wind and unwind the connecting strap.
[0007] As a further optimization of this utility model, the winding mechanism includes a U-shaped winding frame, with a rotating rod on the inner side of the winding frame, and one end of the connecting belt fixed to the rotating rod.
[0008] As a further optimization of this utility model, a back plate is provided on the side of the rocker arm away from the slide, and the winding frame is connected to the rocker arm and the back plate to form an integral, limitable sliding connection.
[0009] As a further optimization of this utility model, the rocker arm is provided with a sliding groove that cooperates with the winding frame, and the winding frame passes through the sliding groove.
[0010] As a further optimization of this utility model, a number of linearly distributed limiting slots are provided on the back plate, and the winding frame and the back plate are detachably fixedly connected by the cooperation of the positioning pin and the limiting slots.
[0011] As a further optimization of this utility model, the rocker arm and the bracket are rotatably connected by a ratchet bearing.
[0012] As a further optimization of this utility model, a stop is provided at the end of the slide rail away from the rocker arm.
[0013] As a further optimization of this utility model, the slide rail is provided with scale lines.
[0014] The beneficial effects of this utility model are as follows:
[0015] This utility model provides a seated forward bend trainer that, through the combination of a rocker arm, a winding mechanism, a handle, and a connecting strap, offers users diverse training conditions. Users can train individually and record their progress, or perform low-risk breakthrough training with the assistance of professionals. The trainer also boasts high flexibility and wide applicability; during training, either the user or a professional assistant can adjust the trainer according to the user's ability and training progress, comprehensively achieving the effect of providing effective and safe training conditions. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall appearance of the present utility model;
[0017] Figure 2 This is an overall side view of the present invention;
[0018] Figure 3 This is a side view diagram showing the assembly of the rocker arm, bracket, back plate, and winding mechanism.
[0019] Figure 4 This is a top view diagram showing the assembly of the rocker arm, back plate, and winding mechanism.
[0020] In the diagram: 1. Floor stand; 2. Pedal; 3. Slide rail; 4. Slide base; 5. Handle; 6. Bracket; 7. Rocker arm holder; 8. Back plate; 9. Slide groove; 10. Winding frame; 11. Positioning pin; 12. Rotating rod; 13. Connecting belt; 14. Stop block. Detailed Implementation
[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.
[0022] Example 1
[0023] like Figure 1-4 As shown, the seated forward bend training device of this embodiment includes a floor frame 1, a pedal 2 located on one side of the floor frame 1, a slide rail 3 located on the floor frame 1, a slide seat 4 slidably located on the slide rail 3, and a handle 5 located on the slide seat 4. The slide rail 3 is provided with scale lines, and a bracket 6 is provided at one end of the slide rail 3 away from the pedal 2. A rocker arm 7 is rotatably connected to the bracket 6. A stop block 14 is provided at one end of the slide rail 3 away from the rocker arm 7. The rocker arm 7 is provided with a winding mechanism. A connecting strap 13 is wound around the handle 5. One end of the connecting strap 13 is fixed to the bracket 6, and the other end is fixed to the winding mechanism. The winding mechanism is used to wind and unwind the connecting strap 13. The winding mechanism is controlled by operating the switch of the rotary drive component (including but not limited to a motor) on it. The switch of the rotary drive component is installed on the handle 5.
[0024] When using this seated forward bend trainer for body flexibility training, place the floor frame 1 on the ground, sit facing the trainer with the soles of your feet on the pedals 2. The bottom of the floor frame 1 can be equipped with anti-slip rubber pads to improve stability. Then, the user can use the trainer for active or assisted training.
[0025] Active training refers to training without the aid of external force, relying on the trainee's own ability to complete the seated forward bend. The trainer only serves to record the training progress. In this training state, the user only needs to grasp the handle 5 and then complete the forward bend, thereby driving the entire assembly of the handle 5 and the slide 4 to move along the slide rail 3. The user can directly read the scale lines on the slide rail 3 to record while in the forward bend state.
[0026] Assisted training refers to training in which the user maintains a forward flexion state with the assistance of external forces, including self-operation state and cooperative operation state;
[0027] In self-operation mode: After the user grips handle 5, the winding mechanism is activated. The winding mechanism begins to wind the connecting belt 13, causing the connecting belt 13 between the slide 4 and the fixed bracket 6 to gradually shorten. This causes the slide 4 and handle 5 to gradually move away from the human body. As long as the user grips handle 5 tightly, handle 5 can cause the user's arm to gradually extend forward, and the user's body bending angle will gradually increase until the user feels the bending pressure. At this point, the winding mechanism can be temporarily stopped until the user adapts to the stretching sensation. Then, the winding mechanism can be restarted and repeated several times. The user can gradually improve their flexibility. Self-operation mode provides the user with independent training conditions. It is convenient and efficient to operate, and the user can control the training process according to their own ability, which is highly flexible.
[0028] The operating state is as follows: the assistant holds the rocker arm 7 and rotates it away from the trainee. The corresponding end of the connecting belt 13 will move away from the trainee along with the rocker arm 7 and the winding mechanism, thus driving the trainee to stretch further. This state is suitable for trainees who aim to break through their flexibility limits. On the one hand, a professional assistant can be assigned to control the training progress and prevent the trainee from overtraining. On the other hand, the rocker arm 7 causes the connecting belt 13 to move only a small range, meaning that the trainee's body bending is not significantly affected. Furthermore, when the rocker arm 7 is manually controlled, it allows for flexible operations such as emergency stops, rotations, and speed changes, facilitating quick adjustments to the training intensity. Overall, this improves the safety of the training.
[0029] Preferably, the winding mechanism includes a U-shaped winding frame 10, with a rotating rod 12 on the inner side of the winding frame 10. One end of the connecting belt 13 is fixed to the rotating rod 12. The rotation drive on the winding mechanism is used to drive the rotating rod 12 to rotate, which can drive the connecting belt 13 to wind around the rotating rod 12. When resetting, the rotating rod 12 is rotated in the opposite direction to unwind the connecting belt 13, and then the slide block 4 is pushed back to the initial position.
[0030] Preferably, the rocker arm 7 is provided with a back plate 8 on the side away from the slide block 4, and the winding frame 10 is connected to the rocker arm 7 and the back plate 8 to form an integral, limitable sliding connection;
[0031] The rocker arm 7 has a groove 9 that mates with the winding frame 10, and the winding frame 10 passes through the groove 9;
[0032] The back plate 8 has several linearly distributed limiting slots. The winding frame 10 and the back plate 8 are detachably fixedly connected by the cooperation of the positioning pin 11 and the limiting slots. The positioning pin 11 is a threaded positioning pin to prevent slippage.
[0033] The height of the winding mechanism can be adjusted by sliding the rocker arm 7 up and down. The height of the winding mechanism can be fixed by screwing the positioning pin 11 into the corresponding limiting slot. With the same rotation angle of the rocker arm 7, the higher the winding mechanism, the longer the arc traced by the end of the connecting belt 13, resulting in a longer distance the connecting belt 13 pulls the slide 4, and a greater impact on the trainee's bending range. Therefore, when performing assisted training with the help of professionals, the height of the winding mechanism can be adjusted to regulate the training intensity that the trainer can cover, further improving its flexibility.
[0034] Preferably, the rocker arm 7 and the support 6 are rotatably connected by a ratchet bearing. The ratchet shaft can prevent the rocker arm from reversing. When conducting assisted training with the help of professionals, if it is necessary to pause to allow the trainee to adapt to the stretching, the assistant can temporarily release the rocker arm 7. The ratchet bearing can prevent the rocker arm 7 from rotating in reverse, making the operation more convenient.
[0035] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A seated forward bend training device, comprising a floor frame (1), a foot pedal (2) disposed on one side of the floor frame (1), a slide rail (3) disposed on the floor frame (1), a slide seat (4) slidably disposed on the slide rail (3), and a handle (5) disposed on the slide seat (4), characterized in that: A bracket (6) is provided at one end of the slide rail (3) away from the pedal (2). A rocker arm (7) is rotatably connected to the bracket (6). The rocker arm (7) is provided with a winding mechanism. A connecting strip (13) is wound around the handle (5). One end of the connecting strip (13) is fixed to the bracket (6), and the other end is fixed to the winding mechanism. The winding mechanism is used to wind and unwind the connecting strip (13).
2. The seated forward bend training device according to claim 1, characterized in that: The winding mechanism includes a U-shaped winding frame (10), with a rotating rod (12) on the inner side of the winding frame (10), and one end of the connecting belt (13) is fixed to the rotating rod (12).
3. The seated forward bend training device according to claim 2, characterized in that: The rocker arm (7) has a back plate (8) on the side away from the slide (4), and the winding frame (10) is connected to the rocker arm (7) and the back plate (8) to form an integral, limitable sliding connection.
4. The seated forward bend training device according to claim 3, characterized in that: The rocker arm (7) has a groove (9) that cooperates with the winding frame (10), and the winding frame (10) passes through the groove (9).
5. A seated forward bend training device according to claim 3, characterized in that: The back plate (8) has several linearly distributed limiting slots. The winding frame (10) and the back plate (8) are detachably fixedly connected by the cooperation of the positioning pin (11) and the limiting slots.
6. The seated forward bend training device according to claim 1, characterized in that: The rocker arm (7) and the bracket (6) are rotatably connected by a ratchet bearing.
7. A seated forward bend training device according to claim 1, characterized in that: A stop (14) is provided at one end of the slide rail (3) away from the rocker arm (7).
8. The seated forward bend training device according to claim 1, characterized in that: The slide rail (3) is provided with scale lines.