Sit-up device for exercise
By introducing structures such as rotating seats, lifting seats and sliding seats into the sit-ups, the adjustment of the reclining plate angle and the pitch of the leg rolls is achieved, solving the problems of single structure and low applicability of the existing sit-ups, and improving the comfort and effect of exercise.
Patent Information
- Application Number
- CN202420384863.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The existing sit-ups have a single structure and are fixed structure, and the exercise intensity cannot be adjusted according to the requirements of the exerciser, and the spacing of the pinched leg rollers cannot be adjusted, resulting in low applicability and poor training effect.
A sit-up device including a rotating seat, a first rotating shaft, a second rotating shaft, a lifting seat and a sliding seat is designed, through which the angle of the fixed lying plate is adjusted, and the spacing of the pinch rollers is adjusted through the slide groove, slider, pin and positioning groove.
It improves the practicality and adjustability of sit-ups, enhances the comfort performance after exercise, and is suitable for different training groups, improving the training effect.
Smart Images
Figure CN222816224U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sit-up machines, in particular to a sit-up machine for exercise. Background Art
[0002] The existing sit-up equipment has a single and fixed structure, and cannot adjust different exercise intensities according to the requirements of the exercisers. At the same time, during the training process, the leg clamping rollers at one end are usually fixedly installed on the sit-up equipment, and the spacing cannot be adjusted according to different trainers, resulting in low applicability of the device and poor training effect. Summary of the invention
[0003] The utility model aims to provide a sit-up device for exercise, which solves the problem that the sit-up device in the prior art has a single and fixed structure and cannot adjust different exercise intensities according to the requirements of the exerciser.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sit-up machine for exercise, comprising a base, one end of the upper part of the base is fixedly connected to a rotating seat, the upper end of the rotating seat is rotatably connected to a first rotating shaft, the upper end of the first rotating shaft is fixedly connected to a fixed lying plate, and the other end of the upper part of the base is fixedly connected to a lifting seat;
[0005] The extending end of the lifting seat is rotatably connected to a second rotating shaft, and the other end of the second rotating shaft is provided with a sliding seat.
[0006] As a further description of the above technical solution: the other end of the sliding seat is fixedly connected to the fixed lying plate, and the second rotating shaft is slidably connected to the sliding seat.
[0007] As a further description of the above technical solution: auxiliary handles are fixedly connected to both ends of the upper side of the fixed lying board.
[0008] As a further description of the above technical solution: the other end above the fixed lying board is fixedly connected with a first fixed frame, a leg clamping roller is arranged on the inner side of the first fixed frame, and a second fixed frame is arranged on the other end of the leg clamping roller.
[0009] As a further description of the above technical solution: a slide groove is opened on the inner side of the first fixing frame and the second fixing frame, and sliders are fixedly connected to both ends of the leg clamping roller, and the sliders are slidably connected inside the slide groove.
[0010] As a further description of the above technical solution: both ends of the first fixing frame and the second fixing frame are movably connected with latches, both ends of the sliding block are provided with positioning grooves, and the latches correspond to the positioning grooves.
[0011] As a further description of the above technical solution: a spring is arranged on the latch.
[0012] The utility model has the following beneficial effects:
[0013] Compared with the prior art, the sit-up machine for exercise can adjust the angle of the fixed lying plate by arranging the rotating seat, the first rotating shaft, the second rotating shaft, the lifting seat and the sliding seat, thereby improving the practicality and adjustability of the entire sit-up machine and improving the comfort performance after exercise;
[0014] Compared with the prior art, the sit-up machine for exercise can adjust the distance between the two leg clamping rollers by arranging a slide groove, a slider, a latch and a positioning groove, so that it is suitable for different training groups and improves the auxiliary effect of sit-ups.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0017] Figure 1 This is a schematic diagram of the overall structure of a sit-up machine for exercise according to the utility model;
[0018] Figure 2 This is a schematic diagram of the leg clamping roller structure of a sit-up machine for exercise according to the utility model;
[0019] Figure 3 The utility model is a schematic diagram of the structure of a fixing frame of a sit-up machine for exercise.
[0020] Legend:
[0021] 1. Sliding seat; 2. Auxiliary handle; 3. Fixed lying plate; 4. First rotating shaft; 5. Rotating seat; 6. Base; 7. Lifting seat; 8. Second rotating shaft; 9. First fixed frame; 10. Slide groove; 11. Leg clamping roller; 12. Second fixed frame; 13. Sliding block; 14. Latch; 15. Spring; 16. Positioning groove. DETAILED DESCRIPTION
[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0023] Reference Figure 1-3The utility model provides an embodiment: a sit-up device for exercise, comprising a base 6, one end of the upper part of the base 6 is fixedly connected with a rotating base 5, the upper end of the rotating base 5 is rotatably connected with a first rotating shaft 4, the upper end of the first rotating shaft 4 is fixedly connected with a fixed lying plate 3, and the other end of the upper part of the base 6 is fixedly connected with a lifting base 7, the lifting base 7 is a hydraulic rod, which can drive the upper fixed lying plate 3 to rise and fall, so as to realize its angle adjustment operation, improve the comfort of its users in sit-ups, facilitate adjustment, and improve the practicality of the device;
[0024] The extended end of the lifting seat 7 is rotatably connected with the second rotating shaft 8, and the other end of the second rotating shaft 8 is provided with a sliding seat 1, and the other end of the sliding seat 1 is fixedly connected to the fixed lying plate 3, and the second rotating shaft 8 is slidably connected to the sliding seat 1. By providing the sliding seat 1, the stability of the fixed lying plate 3 during adjustment can be ensured;
[0025] Auxiliary handles 2 are fixedly connected to the two ends of the fixed lying plate 3, and the other end of the fixed lying plate 3 is fixedly connected to the first fixed frame 9. A leg clamping roller 11 is arranged on the inner side of the first fixed frame 9, and a second fixed frame 12 is arranged on the other end of the leg clamping roller 11. A slide groove 10 is opened on the inner sides of the first fixed frame 9 and the second fixed frame 12. Slide blocks 13 are fixedly connected to the two ends of the leg clamping roller 11, and the slide blocks 13 are slidably connected to the inside of the slide groove 10. The stability of exercise can be improved by holding the auxiliary handle 2, and when the spacing between the two leg clamping rollers 11 is adjusted for different groups of people, the pins 14 at both ends are pulled outward so that the pins 14 are disengaged from the positioning groove 16. At this time, the spacing between the two leg clamping rollers 11 can be adjusted under the action of the slider 13. After the adjustment is completed, the pins 14 at both ends are released, and the clamping and positioning function can be achieved under the action of the spring 15;
[0026] The first fixing frame 9 and the second fixing frame 12 are movably connected with a latch 14 at both ends, and positioning grooves 16 are provided at both ends of the slider 13. The latch 14 corresponds to the positioning groove 16. A spring 15 is provided on the latch 14. There are multiple latches 14, and under the action of the spring 15, the latch has its elastic force and can realize its rebound effect.
[0027] Working principle: When the device is in use, the operator first moves the exercise device to a suitable working position and connects it to a power source. During use, the operator controls the lifting and lowering of the lifting seat 7, which can make the fixed lying board 3 on the top be diagonally supported. The operator can perform sit-ups by lying directly on the top of the fixed lying board 3, with the feet placed between the two leg clamping rollers 11. The stability of the exercise can be improved by holding the auxiliary handle 2. When adjusting the distance between the two leg clamping rollers 11 for different groups of people, the pins 14 at both ends are pulled outward to disengage the positioning groove 16. At this time, the distance between the two leg clamping rollers 11 can be adjusted under the action of the slider 13. After the adjustment is completed, the pins 14 at both ends are released, and the function of clamping and positioning can be achieved under the action of the spring 15, thereby improving its stability and adjustability.
[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A sit-up machine for exercise, comprising a base (6), characterized in that: One end of the upper part of the base (6) is fixedly connected to a rotating seat (5), the upper end of the rotating seat (5) is rotatably connected to a first rotating shaft (4), the upper end of the first rotating shaft (4) is fixedly connected to a fixed lying plate (3), and the other end of the upper part of the base (6) is fixedly connected to a lifting seat (7); The extended end of the lifting seat (7) is rotatably connected to a second rotating shaft (8), and the other end of the second rotating shaft (8) is provided with a sliding seat (1); The other end of the upper part of the fixed lying board (3) is fixedly connected to a first fixed frame (9), a leg clamping roller (11) is arranged on the inner side of the first fixed frame (9), and a second fixed frame (12) is arranged on the other end of the leg clamping roller (11); a slide groove (10) is provided on the inner side of the first fixed frame (9) and the second fixed frame (12), and sliders (13) are fixedly connected at both ends of the leg clamping roller (11), and the sliders (13) are slidably connected inside the slide groove (10); a latch (14) is movably connected at both ends of the first fixed frame (9) and the second fixed frame (12), and positioning grooves (16) are provided at both ends of the slider (13), and the latch (14) corresponds to the positioning groove (16).
2. A sit-up machine for exercise according to claim 1, characterized in that: The other end of the sliding seat (1) is fixedly connected to the fixed lying plate (3), and the second rotating shaft (8) is slidably connected to the sliding seat (1).
3. A sit-up machine for exercise according to claim 1, characterized in that: Auxiliary handles (2) are fixedly connected to both ends of the upper side of the fixed lying plate (3).
4. A sit-up machine for exercise according to claim 1, characterized in that: The latch (14) is provided with a spring (15).