An old people's chair

Abstract

The utility model relates to the technical field of chair, specifically relates to an old people power-assisted chair, it includes: base frame, the base frame upper end face is provided with the seat board, the clearance between base frame and seat board is provided with the backplate perpendicularly, is located seat board rear, the base frame front side is connected with the leg support, the base frame lower part is provided with the cavity for installing power-assisted mechanism, power-assisted mechanism is correspondingly provided with three, and three power-assisted mechanisms correspond with seat board, backplate and leg support one side are connected. The old people power-assisted chair, three movable power-assisted mechanism output ends correspond movably connect seat board, backplate and leg support, cooperate seat board, backplate and leg support with the design of movable connection of base frame, form power-assisted function, facilitate to push the old people to stand up or sit down slowly, greatly improve the convenience of the old people to stand up or sit down, and further be favorable to the promotion and use.

Description

Technical Field

[0001] This utility model relates to the field of chair technology, and in particular to an assistive chair for the elderly. Background Technology

[0002] Currently, aging has become a prominent social problem worldwide. Many elderly people experience mobility difficulties due to physical decline, especially those who are in poor health, live alone, or whose children are not around. If they cannot sit up smoothly while in a chair, it will have a significant negative impact on their quality of life and freedom, seriously hindering their quality of life. At the same time, there are also a considerable number of disabled people in society who may need to use sufficient arm strength to sit up in a chair due to leg problems.

[0003] In existing technologies, users need to rely entirely on their own strength to sit up and get up. When users lack sufficient physical strength, it seriously affects their mobility. Therefore, it is necessary to provide an assistive chair for the elderly that can smoothly transform the user into a sitting position when the user requests to sit down, and can smoothly push the user up when the user requests to stand up. In addition, the structure is simple and easy to use, helping the elderly or those with mobility difficulties to sit up and get up. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. To overcome the aforementioned shortcomings of existing technologies, this utility model provides an assistive chair for the elderly, aiming to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides an assistive chair for the elderly, comprising: a base frame, a seat plate disposed on the upper surface of the base frame, a back panel vertically disposed at the gap between the base frame and the seat plate, located behind the seat plate, a leg rest connected to the front side of the base frame, and a cavity for installing assistive mechanisms pre-set in the lower part of the base frame. Three assistive mechanisms are correspondingly disposed, and each of the three assistive mechanisms is connected to one side of the seat plate, the back panel, and the leg rest. The fixed ends of the three assistive mechanisms are movably connected to the cavity via bearings, and the movable ends of the three assistive mechanisms are movably connected to the seat plate, the back panel, and the leg rest via bearings. Furthermore, one side of the seat plate, the back panel, and the leg rest are movably connected to the base frame via bearings.

[0006] The base frame is made of aluminum alloy, providing overall stability and support for the device. The seat, backrest, and leg rest are auxiliary components of the base frame, corresponding to the user's sitting position, back support, and foot support, respectively. This technology is common knowledge and will not be elaborated further. The cavity formed between the four vertical and four horizontal bars on the base frame primarily serves as installation space for the assistive mechanisms. The output ends of the three movable assistive mechanisms are movably connected to the seat, backrest, and leg rest. This design, combined with the movable connection of the seat, backrest, and leg rest to the base frame, creates an assistive function, facilitating the elderly to slowly stand up or sit down, greatly improving their ease of use.

[0007] Preferably, all three assist mechanisms are electric actuators.

[0008] The electric actuator adopts an existing structure on the market, specifically model HTA18, which is designed for medical equipment. It operates silently and supports customized processing.

[0009] Preferably, the upper surface of the seat panel and the outer surface of the back panel near the seat panel are provided with an adhesive layer for bonding the seat cushion and the back cushion.

[0010] The adhesive layer is designed to bond the external seat cushion and back cushion. The adhesive design makes it easy for users to disassemble and reassemble the seat cushion and back cushion for cleaning and maintenance.

[0011] Preferably, the outer surface of the back panel away from the seat panel has a pre-set connection hole, and the connection hole is of the internal thread type. Furthermore, there are two internal thread type connection holes symmetrically arranged about the longitudinal midline of the back panel.

[0012] The internal threaded connection hole is used for threaded connection to an external handle, allowing the device to be used with the assistance of medical staff or family members.

[0013] Preferably, it also includes a travel mechanism, which includes travel wheels and steering wheels; two travel wheels are symmetrically arranged on the lower end face of the base frame, and the two travel wheels are connected by a connecting rod; the steering wheels are arranged on the lower end face of the base frame, in front of the travel wheels, and two steering wheels are symmetrically arranged about the longitudinal midline of the base frame, and both steering wheels are omnidirectional wheel structures.

[0014] The driving mechanism is an auxiliary component on the base frame, enabling the base frame to move and walk. The driving wheels bear the main weight of the user and wheelchair, providing forward propulsion, while the steering wheels control the direction of travel and allow turning by changing their angle. This technology is common knowledge and will not be elaborated further.

[0015] Preferably, a drive mechanism is connected to the driving wheel, the drive mechanism including a reduction motor and a gear set; the reduction motor is arranged parallel to the connecting rod via a connecting plate; the gear set includes a drive gear and a driven gear, the drive gear is located at the output end of the reduction motor, the driven gear is located on the connecting rod, and the drive gear and the driven gear are meshed.

[0016] The drive mechanism is used to drive the traveling wheels to rotate, achieving the function of automatic walking. The geared motor and gear set both use existing commercially available structures. The geared motor drives the connecting rod to rotate in both directions via the gear set. The rotation of the connecting rod drives the traveling wheels to rotate. This technology is common knowledge in the mechanical field and will not be elaborated further.

[0017] Preferably, it also includes a support plate, which is arranged parallel to the left and right sides of the back plate, and the upper surface of the support plate is made of TPE material.

[0018] The support plate is used to support the user's elbow. The upper surface of the support plate, made of TPE material, is not only soft and elastic, reducing the pressure during long-term use, but also suitable for sensitive skin and scenarios requiring shock absorption, demonstrating the practicality of this device.

[0019] Preferably, the support plate is provided with a control switch, and the control switch is electrically connected to the electric push rod and the reduction motor.

[0020] The control switch is mainly used for speed adjustment, direction control, and the use of electric actuators, forming an automated structure. Its electrical connection method adopts a conventional layout in the art; this application only seeks to protect the mechanical structure, and therefore will not elaborate further.

[0021] The beneficial effects of this utility model are: In use, the output ends of the three movable assist mechanisms of this invention are movably connected to a seat plate, a backrest, and a leg rest. The design of the seat plate, backrest, and leg rest being movably connected to the base frame forms an assist function, making it easier to push the elderly to stand up or sit down slowly, greatly improving the convenience of the elderly to stand up or sit down, and thus facilitating its widespread use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the entire embodiment of this utility model; Figure 2 This is a rear view structural diagram of the overall embodiment of this utility model; Figure 3 This is a side view of the overall structure of a specific embodiment of the present utility model; Figure 4 This is a top view of the overall structure of a specific embodiment of this utility model.

[0024] Part Name 1. Base frame; 2. Seat panel; 3. Backrest; 4. Leg rest; 5. Electric actuator; 6. Traveling wheels; 7. Steering wheels; 8. Gear motor; 9. Gear set; 10. Support plate; 11. Control switch. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings. Preferably, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Please see Figures 1 to 4This utility model provides an assistive chair for the elderly, comprising: a base frame 1, a seat plate 2 disposed on the upper surface of the base frame 1, a back plate 3 vertically disposed at the gap between the base frame 1 and the seat plate 2, located behind the seat plate 2, a leg rest 4 connected to the front side of the base frame 1, and a cavity for installing assistive mechanisms pre-set in the lower part of the base frame 1. Three assistive mechanisms are correspondingly provided, and each of the three assistive mechanisms is connected to one side of the seat plate 2, the back plate 3, and the leg rest 4. The fixed ends of the three assistive mechanisms are movably connected to the cavity via bearings, and the movable ends of the three assistive mechanisms are movably connected to the seat plate 2, the back plate 3, and the leg rest 4 via bearings. The seat plate 2, the back plate 3, and the leg rest 4 are movably connected to the base frame 1 via bearings. All three assistive mechanisms are electric push rods 5. An adhesive layer is pre-set on the upper surface of the seat plate 2 and the outer surface of the back plate 3 near the seat plate 2 for bonding the seat cushion and backrest. A connecting hole is pre-set on the outer surface of the back plate 3 away from the seat plate 2, and the connecting hole has an internal thread structure. Two connecting holes are symmetrically arranged about the longitudinal center axis of the back plate 3. The driving mechanism includes driving wheels 6 and steering wheels 7. Two driving wheels 6 are symmetrically arranged on the lower end face of the base frame 1 and are connected by a connecting rod. The steering wheels 7 are located on the lower end face of the base frame 1, in front of the driving wheels 6, and are symmetrically arranged about the longitudinal center axis of the base frame 1. Both steering wheels 7 are universal wheels. A drive mechanism is connected to the driving wheels 6. The drive mechanism includes a reduction motor 8 and a gear set 9. The reduction motor 8 is arranged parallel to the connecting rod via a connecting plate. The gear set 9 includes a drive gear and a driven gear. The drive gear is located at the output end of the reduction motor 8, and the driven gear is located on the connecting rod. The drive gear and the driven gear are meshed. The support plate 10 is arranged parallel to the left and right sides of the back plate 3. The upper surface of the support plate 10 is made of TPE material. A control switch 11 is provided on the support plate 10, and the control switch 11 is electrically connected to the electric push rod 5 and the reduction motor 8.

[0028] In this embodiment: First, the seat cushion and backrest are glued to the seat plate 2 and backrest 3 respectively, and the handle is threaded onto the backrest 3.

[0029] Secondly, when the user is accompanied by medical staff or family members, the user can sit on the seat board 2 with the assistance of medical staff or family members. The user's back is supported by the backrest 3, the feet are placed on the leg rest 4 and supported by the leg rest 4, and the elbows are supported by the support plate 10. After the user's sitting posture is adjusted, the medical staff or family members can push the device by the handle, so that the base frame 1 moves with the cooperation of the driving wheel 6 and the steering wheel 7, thereby moving the user to the designated position.

[0030] Finally, when the user is not accompanied by medical staff or family members, the user can slowly sit on the seat 2 and adjust their posture using the methods described above. Once the posture is adjusted, the control switch 11 starts the reduction motor 8, which drives the driving wheel 6 to rotate through the gear set 9. The driving wheel 6, in conjunction with the steering wheel 7, moves the user to the designated position, thus providing assisted movement. When the user needs to stand up after moving to the designated position, the control switch 11 starts the three electric actuators 5, which drive the seat 2, backrest 3, and leg rest 4 respectively. This allows the seat 2 and leg rest 4 to rotate and be raised to lift the elderly person, while simultaneously moving the backrest 3 forward to protect the user's lower back. The support plate 10 is designed to provide support for the elderly person, thus achieving the function of assisting them to stand up.

[0031] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A geriatric assist chair comprising: A base frame (1) is provided with a seat plate (2) on its upper surface. A back plate (3) is vertically provided in the gap between the base frame (1) and the seat plate (2) and is located behind the seat plate (2). A leg rest (4) is connected to the front side of the base frame (1). The base frame (1) is characterized in that a cavity for installing an assist mechanism is pre-set in the lower part of the base frame (1). Three assist mechanisms are provided, and the three assist mechanisms are connected to one side of the seat plate (2), the back plate (3) and the leg rest (4). The fixed ends of the three assist mechanisms are movably connected to the cavity via bearings, and the movable ends of the three assist mechanisms are movably connected to the seat plate (2), the back plate (3) and the leg rest (4) via bearings. The seat plate (2), the back plate (3) and the leg rest (4) are movably connected to the base frame (1) via bearings. The upper surface of the seat plate (2) and the outer surface of the back plate (3) near the seat plate (2) are provided with an adhesive layer for bonding the seat cushion and the back cushion. The back plate (3) has a pre-set connection hole on the outer surface away from the seat plate (2), and the connection hole is an internal thread type structure. There are two internal thread type connection holes symmetrically arranged about the longitudinal midline of the back plate (3).

2. The chair of claim 1, wherein, All three assist mechanisms are electric actuators (5).

3. The chair of claim 1, wherein, It also includes a driving mechanism, which includes driving wheels (6) and steering wheels (7); there are two driving wheels (6) symmetrically arranged on the lower end face of the base frame (1), and the two driving wheels (6) are connected by a connecting rod; the steering wheels (7) are arranged on the lower end face of the base frame (1), in front of the driving wheels (6), and there are two steering wheels (7) symmetrically arranged about the longitudinal midline of the base frame (1), and both steering wheels (7) are universal wheel structures.

4. The chair of claim 3, wherein, The driving wheel (6) is connected to a drive mechanism, which includes a reduction motor (8) and a gear set (9). The reduction motor (8) is arranged parallel to the connecting rod via a connecting plate. The gear set (9) includes a drive gear and a driven gear. The drive gear is located at the output end of the reduction motor (8), and the driven gear is located on the connecting rod. The drive gear and the driven gear are meshed.

5. The chair of claim 1, wherein, It also includes a support plate (10), which is arranged in parallel on the left and right sides of the back plate (3), and the upper surface of the support plate (10) is made of TPE material.

6. The chair of claim 5, wherein, The support plate (10) is provided with a control switch (11), and the control switch (11) is electrically connected to the electric push rod (5) and the geared motor (8).

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