Sports chair with lifting backrest structure

Abstract

The utility model discloses a sports chair with a lifting backrest structure, which comprises a rack, a seat plate is fixed at one end of the top surface of the rack, and a turntable is arranged in the center of the seat plate; a backup plate structure is arranged on the top surface of the rack, a connecting support plate is fixed to the end edge of the seat plate, one end of the backup plate structure is rotatably connected to the connecting support plate through a shaft rod, and an electric telescopic rod is arranged between the backup plate structure and the rack; the electric telescopic rod stretches out and draws back and enables the backup plate structure to rotate with the shaft rod as the center to be vertically or horizontally placed. A telescopic adjusting rod is arranged on the bottom face of the rack, and a presser foot frame is fixed to the end of the telescopic adjusting rod and located on the side, away from the backup plate structure, of the rack. The waist twisting exercise machine is reasonable in structural arrangement, the backup plate structure is horizontally placed or erected through the electric telescopic rod, the convenience and effectiveness of operation are improved, waist twisting exercise is achieved, the diversity of exercise is improved, the position of the foot pressing frame can be adjusted according to needs through the telescopic adjusting rod, and repeated movement operation of old people can be achieved easily.

Description

Technical Field

[0001] This utility model belongs to the technical field of exercise equipment for the elderly, and specifically relates to an exercise chair with a height-adjustable backrest structure. Background Technology

[0002] As people's living standards improve, they are paying more and more attention to their health in daily life. The elderly, in particular, are very focused on their health. Currently, the elderly use various exercise tools to improve their health, such as waist-twisting machines, stretching machines, and sit-up machines. This not only greatly increases the demand for exercise equipment and costs, but also makes it difficult for the elderly to effectively achieve the desired exercise results due to their weakened physical condition and difficulty in getting up from a lying position. Furthermore, existing exercise equipment has limited structure and function, failing to meet the needs of different situations, and cannot be adjusted or assisted as needed, thus limiting its applicability and making it difficult to meet the needs of the elderly population. Utility Model Content

[0003] The purpose of this utility model is to provide a sports chair with a lifting backrest structure that has a reasonable structural design and multiple functions.

[0004] The technical solution to achieve the purpose of this utility model is a sports chair with a height-adjustable backrest structure, including a frame, a seat plate fixed to one end of the top surface of the frame, and a turntable for rotating and twisting waist exercise set in the center of the seat plate.

[0005] The top surface of the frame is provided with a backing plate structure, and the end edge of the seat plate is fixed with a connecting support plate. One end of the backing plate structure is rotatably connected to the connecting support plate through a shaft, and an electric telescopic rod is provided between the backing plate structure and the frame.

[0006] The electric telescopic rod extends and retracts, and the backrest structure rotates around the axis to achieve vertical or horizontal positioning.

[0007] A further preferred embodiment is that the backrest structure includes a backrest support, a backrest, two armrests, and connecting lugs;

[0008] The backrest is fixed to the top surface of the backrest support, the two armrests are arranged at the symmetrical edges of the backrest support, and the connecting lugs are fixed to the bottom surface of the end of the backrest support.

[0009] The bottom end of the electric telescopic rod is rotatably connected to the bottom surface of the frame via a pin, and the top end of the electric telescopic rod is rotatably connected to the connecting lug via a connecting shaft.

[0010] A further preferred embodiment is that the connecting lug is located at one end of the backrest bracket near the seat plate.

[0011] A further preferred embodiment is that a pull bag bracket is fixed to the end of the backrest support.

[0012] A further preferred embodiment is that the frame or backrest support is equipped with a power supply and control switch.

[0013] A further preferred embodiment is that a ball bearing is provided at the connection between the edge of the turntable and the base plate.

[0014] A further preferred embodiment is that: a telescopic adjustment rod is provided on the bottom surface of the frame, and a pressure foot bracket is fixed to the end of the telescopic adjustment rod, with the pressure foot bracket located on the side of the frame away from the backing plate structure.

[0015] This utility model has positive effects: The structure of this utility model is reasonably designed, including a frame, a seat, a turntable, a backrest structure, an electric telescopic rod, and a telescopic adjustment rod. In use, the backrest structure can be laid flat or upright by the electric telescopic rod, allowing the exerciser to lie down and sit up by the backrest structure, thus improving the convenience and effectiveness of operation. In addition, it can be used with a foot presser to perform foot press operation, and the turntable can be used for waist twisting exercises, increasing the diversity of exercise and meeting the exercise needs of different situations.

[0016] 2. The position of the presser foot can be adjusted as needed via the telescopic adjustment rod to meet the needs of different groups of people, avoiding the situation where the elderly do not have the strength to manually lift the backrest structure, which is conducive to the repeated movement operation of the elderly and has strong applicability;

[0017] 3. The backrest structure includes a backrest support, a backrest, two armrests, connecting lugs, and a pull bag frame, which helps improve the functionality and stability of the backrest structure, making it easier for people to support themselves during exercise and improving its usability. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the backing plate structure when it is upright in this utility model;

[0021] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0022] Figure 4 This is another structural view of the disassembled structure of this utility model;

[0023] Figure 5for Figure 4 Enlarged structural diagram at point A in the middle.

[0024] Reference numerals: 1. Frame; 2. Seat plate; 3. Turntable; 4. Insert cylinder; 5. Vertical waist twisting armrest; 6. Backrest structure; 61. Backrest bracket; 62. Armrest; 63. Connecting lug; 64. Connecting support plate; 7. Electric telescopic rod; 8. Telescopic adjustment rod; 9. Outer cylinder; 91. Control motor; 92. Inner rod; 93. Presser foot bracket; 10. Drive motor; 11. Crank arm; 12. Bearing body; 13. Caster bracket; 14. Bag puller bracket; 15. Ball bearing; 16. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] See Figures 1 to 5 As shown, an exercise chair with a height-adjustable backrest structure includes a frame 1. A seat plate 2 is fixed to one end of the top surface of the frame, and a turntable 3 for rotating and twisting waist exercises is arranged at the center of the seat plate. In this embodiment, during waist twisting exercises, the user can rotate left and right while standing or sitting on the turntable, and the rotation of the turntable can also achieve the effect of full-body swinging exercises. To prevent falls, a tube 4 is fixed to the end of the frame, and a vertical waist twisting armrest 5 is inserted into the tube and fixed with screws. The vertical waist twisting armrest and the backrest structure are located on the symmetrical side of the seat plate. The user can hold onto the vertical waist twisting armrests during waist twisting.

[0028] In this embodiment, a backrest structure 6 is provided on the top surface of the frame, and a connecting support plate 7 is fixed to the end edge of the seat plate. One end of the backrest structure is rotatably connected to the connecting support plate via a shaft, and an electric telescopic rod 8 is provided between the backrest structure and the frame. In use, the electric telescopic rod extends and retracts, causing the backrest structure to rotate around the shaft to achieve vertical or horizontal positioning. This improves the ease of raising and lowering the backrest structure, avoids situations where elderly people lack the strength to manually lift the backrest structure, and facilitates repeated movement operations for the elderly.

[0029] In this embodiment, a telescopic adjustment rod 9 is provided on the bottom surface of the frame, and a pressure foot bracket 10 is fixed to the end of the telescopic adjustment rod. The pressure foot bracket is located on the side of the frame away from the backing plate structure. The telescopic adjustment rod includes an outer cylinder 91, a control motor 92, a transmission screw, and several inner rod sections 93. The crank arm is fixed to one end face of the outer cylinder, the shaft is located on the top and bottom surfaces of the other end of the outer cylinder, the control motor is fixed to the outer wall of the outer cylinder, the transmission screw is located inside the outer cylinder and connected to the main shaft of the control motor, and the inner rod is inserted into the outer cylinder and threadedly connected to the transmission screw. That is, in this embodiment, both the telescopic adjustment rod and the electric telescopic rod are conventional structures of the prior art, and the electric telescopic rod has the same structure as the telescopic adjustment rod, so they are not described in detail, but simply applied.

[0030] In practical application, a drive motor 11 is fixed to the bottom of the frame, and a crank arm 12 is provided at the end of the telescopic adjustment rod. The main shaft of the drive motor is connected to the crank arm. A shaft is fixed to the top and bottom surfaces of the telescopic adjustment rod, and the shaft is connected to the bottom surface of the frame through a bearing body 13. During use, the drive motor rotates, and the crank arm drives the telescopic adjustment rod to swing left and right around the shaft as a fulcrum. Through the above structure, the presser foot frame swing exercise can be realized, making the exercise function more diverse.

[0031] In practical applications, the presser foot is fixed above the end of the inner rod, and a caster frame 14 is fixed below the end of the inner rod, with the caster frame directly below the presser foot. The smooth and effective movement facilitated by the caster frame meets the needs of different users.

[0032] In practical applications, the backrest structure includes a backrest support 61, a backrest 62, two armrests 63, and connecting lugs 64. During processing and assembly, the backrest is fixed to the top surface of the backrest support, the two armrests are located at the symmetrical edges of the backrest support, and the connecting lugs are fixed to the bottom surface of the end of the backrest support. The bottom end of the electric telescopic rod is rotatably connected to the bottom surface of the frame via a pin, and the top end of the electric telescopic rod is rotatably connected to the connecting lugs via a connecting shaft. The armrests facilitate hand operation.

[0033] In practical applications, the connecting lugs are located at one end of the backrest bracket near the seat plate. A pull-out bag bracket 15 is fixed to the end of the backrest bracket. Furthermore, in practical applications, a power supply and control switch are installed on the frame or backrest bracket. This is a common technical structure in the prior art, primarily used for power supply and control adjustment. In practical applications, the power supply can be a battery or a conventional structure such as a mains power connection plug.

[0034] In this embodiment, a ball bearing 16 is provided at the connection between the edge of the turntable and the base plate to ensure the effectiveness and smoothness of the turntable's rotation.

[0035] This utility model has the following positive effects: 1. The structure of this utility model is reasonable. It includes a frame, a seat, a turntable, a backrest structure, an electric telescopic rod, a telescopic adjustment rod, and a presser foot. In use, the backrest structure can be laid flat or upright by the electric telescopic rod, so that the person exercising can lie flat and sit up by the backrest structure, which improves the convenience and effectiveness of operation. Moreover, it can be used with the presser foot to perform foot pressing operation, and the turntable can be used to perform waist twisting exercises, which improves the diversity of exercise and can meet the exercise needs of different situations. In addition, the position of the presser foot can be adjusted as needed by the telescopic adjustment rod to meet the needs of different groups of people and has strong applicability.

[0036] 2. A drive motor is fixed at the bottom of the frame, and the main shaft of the drive motor is connected to the crank arm. When the drive motor rotates, the crank arm drives the telescopic adjustment rod to swing left and right around the shaft. With the telescopic adjustment rod, stretching and repetitive movements can be achieved, which improves the diversity of exercise.

[0037] 3. A caster frame is fixed to the lower end of the inner rod, and the caster frame is located directly below the presser foot frame. Through the above structure, the smoothness and effectiveness of the telescopic adjustment rod's extension and retraction can be improved, thereby enhancing exercise comfort.

[0038] 4. The backrest structure includes a backrest support, a backrest, two armrests, connecting lugs, and a pull bag frame, which helps improve the functionality and stability of the backrest structure, making it easier for people to support themselves during exercise and improving its usability.

[0039] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A sports chair with a height-adjustable backrest structure, comprising a frame, characterized in that: A seat plate is fixed to one end of the top surface of the frame, and a turntable for rotating and twisting waist exercises is set in the center of the seat plate. The top surface of the frame is provided with a backing plate structure, and the end edge of the seat plate is fixed with a connecting support plate. One end of the backing plate structure is rotatably connected to the connecting support plate through a shaft, and an electric telescopic rod is provided between the backing plate structure and the frame. The electric telescopic rod extends and retracts, and the backrest structure rotates around the axis to achieve vertical or horizontal positioning.

2. The sports chair with a height-adjustable backrest structure according to claim 1, characterized in that: The backrest structure includes a backrest support, a backrest, two armrests, and connecting lugs; The backrest is fixed to the top surface of the backrest support, the two armrests are arranged at the symmetrical edges of the backrest support, and the connecting lugs are fixed to the bottom surface of the end of the backrest support. The bottom end of the electric telescopic rod is rotatably connected to the bottom surface of the frame via a pin, and the top end of the electric telescopic rod is rotatably connected to the connecting lug via a connecting shaft.

3. A sports chair with a height-adjustable backrest structure according to claim 2, characterized in that: The connecting lug is located at one end of the backrest bracket near the seat plate.

4. A sports chair with a height-adjustable backrest structure according to claim 3, characterized in that: A pull bag bracket is fixed to the end of the backrest support.

5. A sports chair with a height-adjustable backrest structure according to claim 3, characterized in that: The frame or backrest is equipped with a power supply and control switch.

6. A sports chair with a height-adjustable backrest structure according to claim 1, characterized in that: A ball bearing is provided at the connection between the edge of the turntable and the base plate.

7. A sports chair with a height-adjustable backrest structure according to claim 1, characterized in that: The bottom surface of the frame is provided with a telescopic adjustment rod, and a pressure foot bracket is fixed to the end of the telescopic adjustment rod. The pressure foot bracket is located on the side of the frame away from the backing plate structure.

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