Height-adjustable seat for old people

Abstract

The utility model discloses a height-adjustable chair for old people, which comprises a chair, a support and a lifting mechanism, a mounting plate is fixedly arranged on the support, a base is arranged below the mounting plate, a first fixing plate is fixedly arranged on the mounting plate, a second fixing plate is fixedly arranged on the base, and the lifting mechanism comprises a lifting component and a driving component. The lifting assembly comprises a first sliding rod, a second sliding rod, a first connecting rod and a second connecting rod, one end of the first sliding rod is fixedly provided with a first connecting base, the other end of the first sliding rod is slidably provided with a second connecting base, the second sliding rod is fixedly provided with a third connecting base, and the other end of the first sliding rod is slidably provided with a fourth connecting base; a second hinge rod is fixedly arranged on the second connecting base, a third hinge rod is fixedly arranged on the third connecting base, a fourth hinge rod is fixedly arranged on the fourth connecting base, the two ends of the first connecting rod are hinged to the first hinge rod and the fourth hinge rod, and the two ends of the second connecting rod are hinged to the second hinge rod and the third hinge rod. The height-adjustable seat is used for solving the technical problem that the height of the seat cannot be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of seat, especially relates to an adjustable height seat for the old. BACKGROUND

[0002] The seat is the furniture that is used very widely in the family room and various places with crowd activities, along with the improvement of living standards, the style, material, workmanship of seat are more and more diversified and high grade, they are beautiful, high grade, generally also have good use value and function.But, the adult seat of present mostly only applies to healthy adult, and can not satisfy the old people well.

[0003] With the growth of age, the body function of the old people gradually degenerates, especially the lower limb function, such as osteoporosis, joint wear and tear and so on increasingly highlight.These physiological changes lead to the old people to face greater difficulty in daily life, such as standing up or sitting down from the seat, therefore, need to provide an adjustable height seat for the old, can provide suitable seat height according to the height and lower limb strength condition of different old people, thereby reduce the physical burden, improve the convenience and comfort of life. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problem, the utility model provides an adjustable height seat for the old.

[0005] To realize the above purpose, an adjustable height seat for the old of the utility model, including chair, support, lifting mechanism, the chair is arranged on the support, the support is arranged on the lifting mechanism, the support bottom end is fixed with the installation plate that is arranged parallel to the ground, the installation plate below is spaced apart with the parallel base, the installation plate bottom face along its width direction both ends are respectively vertically fixed with the first fixed plate, the base top along its width direction both ends are respectively vertically fixed with the second fixed plate, the lifting mechanism includes two groups of lifting assembly, drive assembly, two groups lifting assembly symmetry is arranged between installation plate and base, and is arranged in installation plate along its length direction both ends;

[0006] Each of the lifting components includes a first sliding rod fixed between two first fixing plates, a second sliding rod fixed between two second fixing plates, a first connecting rod and a second connecting rod arranged in a scissor shape. One end of the first sliding rod is fixedly provided with a first connecting seat, and the other end is slidably connected with a second connecting seat. The second sliding rod is fixedly provided with a third connecting seat below the first connecting seat, and the other end is slidably connected with a fourth connecting seat. A first hinge rod is fixedly provided on the first connecting seat, a second hinge rod is fixedly provided on the second connecting seat, a third hinge rod is fixedly provided on the third connecting seat, and a fourth hinge rod is fixedly provided on the fourth connecting seat. The two ends of the first connecting rod are respectively hinged with the first hinge rod and the fourth hinge rod, the two ends of the second connecting rod are respectively hinged with the second hinge rod and the third hinge rod, and the middle parts of the first connecting rod and the second connecting rod are also hinged. The driving component drives the two fourth connecting seats to move.

[0007] Optionally, the driving component includes a first motor fixed on the second fixing plate close to the fourth connecting seat, a screw rod, a slider threadedly connected to the screw rod, and a fifth connecting seat. The output shaft of the first motor passes through the second fixing plate and is rotatably connected thereto. The fifth connecting seat is fixedly provided on one side of the top surface of the base close to the first connecting seat. One end of the screw rod is rotatably connected to the fifth connecting seat, and the other end is fixedly connected to the output shaft of the first motor. The two ends of the slider in the length direction thereof are respectively fixedly connected to the two fourth connecting seats.

[0008] Optionally, the chair includes a seat arranged parallel to the ground, a backrest vertically fixed at one end of the seat along its width direction, and two armrests in a "冂" shape. The two armrests are respectively fixed at the two ends of the seat along its length direction, and the bottom end of the armrest is fixedly connected to the bracket.

[0009] Optionally, the chair further includes a support mechanism. The support mechanism includes two air cylinders, two first connecting plates, two second connecting plates, and an arc-shaped support plate. The two air cylinders are symmetrically arranged at the two ends of the bracket along its length direction below the seat. The piston rod of the air cylinder faces away from the backrest. One end of the air cylinder is fixedly connected to the bracket. The two first connecting rods and the second connecting plates correspond to the two air cylinders respectively. One end of the first connecting plate along its length direction is fixedly provided on the piston rod of the air cylinder, and the other end is fixedly provided with a rotating rod. One end of the second connecting plate along its length direction is hinged to the rotating rod, and the other end is fixedly provided at the bottom end of the support plate. The top end of the support plate is hinged below the seat on the side away from the backrest.

[0010] Optionally, the seat further includes a moving mechanism disposed below the lifting mechanism. The moving mechanism includes two driving wheels, two driven wheels, and two second motors. The two driving wheels are rotatably connected to one end of the bottom surface of the base and are spaced apart along the length of the base. The two second motors are fixedly mounted on the bottom surface of the base near the driving wheels, and the output shafts of the second motors are fixedly connected to the center of the driving wheels. The two driven wheels are rotatably connected to the side of the base away from the driving wheels and are also spaced apart along the length of the base.

[0011] Optionally, a foot pedal is fixed to one end of the top surface of the mounting plate away from the chair back, and an anti-slip pad is fixed to the foot pedal.

[0012] Optionally, silicone pads are fixed on the seat and backrest respectively.

[0013] Optionally, a headrest is fixed to the back of the chair, and a lumbar pillow is fixed to the seat.

[0014] Optionally, a control panel is fixedly mounted on the handrail, and the control panel is electrically connected to two cylinders, a first motor, and two second motors.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This application adopts a lifting mechanism, which allows users to adjust the chair to a suitable height according to their height or physical condition, thereby improving its practicality.

[0017] 2. This application adopts a support mechanism, which allows users to activate the support mechanism, open the support plate, and place their legs on the support plate to rest, thereby improving comfort.

[0018] 3. This application adopts a moving mechanism, which allows users to control the movement of the seat themselves, making it more convenient.

[0019] 4. This application uses a control panel to control other mechanisms, which users can complete themselves, thus improving convenience. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram to show part of the lifting mechanism's structure.

[0023] Figure 3 This is a schematic diagram to show part of the structure of the moving mechanism.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Chair; 11. Seat; 12. Backrest; 13. Armrest; 131. Control Panel; 14. Support Mechanism; 141. Cylinder; 142. First Connecting Plate; 143. Second Connecting Plate; 144. Support Plate; 145. Rotating Rod; 15. Silicone Pad; 16. Headrest; 17. Lumbar Pillow; 18. Rubber Pad; 2. Bracket; 21. Mounting Plate; 211. First Fixing Plate; 22. Foot Pedal; 221. Anti-slip Pad; 3. Lifting Mechanism; 31. Lifting Component; 311. First Slide Rod; 312. Second Slide Rod; 313. 314. First connecting rod; 315. First connecting seat; 3151. First hinge rod; 316. Second connecting seat; 3161. Second hinge rod; 317. Third connecting seat; 3171. Third hinge rod; 318. Fourth connecting seat; 3181. Fourth hinge rod; 32. Drive assembly; 321. First motor; 322. Screw; 323. Slider; 324. Fifth connecting seat; 33. Base; 331. Second fixing plate; 4. Moving mechanism; 41. Driving wheel; 42. Driven wheel; 43. Second motor. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Reference Figure 1 An adjustable height chair for the elderly includes a chair 1, a support 2, a lifting mechanism 3, and a moving mechanism 4. The chair 1 is mounted on the support 2, and the support 2 is mounted on the lifting mechanism 3, which is used to adjust the height of the chair. The moving mechanism 4 is located below the lifting mechanism 3 and is used to control the movement of the chair.

[0028] Reference Figure 1, the chair 1 includes a seat 11, a backrest 12, armrests 13, and a support mechanism 14. The seat 11 is placed parallel to the ground and fixedly connected to the top end of the bracket 2. The backrest 12 is vertically fixed at one end of the top surface of the seat 11 along its width direction, and silicone pads 15 are fixedly provided on the seat 11 and the backrest 12 respectively to improve the comfort of the seat. A headrest 16 is fixedly provided at the top end of the side of the backrest 12 close to the seat 11, and a lumbar pillow 17 is fixedly provided at one end of the top surface of the seat 11 close to the backrest 12. The number of armrests 13 is two, and the armrests 13 are arranged in a "冂" shape. The two armrests 13 are respectively fixedly provided at both ends of the seat 11 along its length direction, and the bottom ends of the armrests 13 are fixed to the bracket 2. Rubber pads 18 are fixedly provided on the top surfaces of the two armrests 13 respectively, which also helps to improve the comfort of the seat. A control panel 131 is also fixedly provided on the side of one of the armrests 13, and the control panel 131 is used to control the lifting mechanism 3, the moving mechanism 4, and the support mechanism 14. An installation plate 21 is fixedly provided at the bottom end of the bracket 2, and the installation plate 21 is arranged parallel to the seat 11. A footrest 22 is fixedly provided at one end of the top surface of the installation plate 21 away from the backrest 12. The footrest 22 is arranged parallel to the top surface of the installation plate 21, and an anti-slip pad 221 is fixedly provided on the footrest 22.

[0029] Referring to Figure 1 and Figure 2 , the support mechanism 14 includes cylinders 141, first connecting plates 142, second connecting plates 143, and support plates 144. The number of cylinders 141 is two, and the two cylinders 141 are electrically connected to the control panel 131. The two cylinders 141 are symmetrically arranged on both sides of the bracket 2 along its length direction under the seat 11, and the piston rods of the cylinders 141 face away from the backrest 12. The cylinders 141 are arranged along the width direction of the seat 11, and one end of each cylinder 141 is fixedly connected to the side wall of the bracket 2. The number of the first connecting plates 142 and the second connecting plates 143 is two, and they respectively correspond to the two cylinders 141 one by one. One end of the first connecting plate 142 along its length direction is fixedly provided on the piston rod of the cylinder 141, and a rotating rod 145 is fixedly provided at the end of the first connecting plate 142 away from the cylinder 141. One end of the second connecting plate 143 along its length direction is hinged to the rotating rod 145. The support plate 144 is arranged in an arc shape, and one end of the support plate 144 is hinged below the side of the seat 11 away from the backrest 12, and the other end is fixedly provided at the end of the second connecting plate 143 away from the rotating rod 145.

[0030] Since the top of the support plate 144 is hinged to the lower part of the seat 11 away from the backrest 12, the position of the top of the support plate 144 is essentially fixed. When the support mechanism 14 is not in use, the support plate 144 is in a vertical state. When in use, after the user sits on the seat 11, they can press the control panel 131. The control panel 131 can activate the cylinder 141, causing the piston rod of the cylinder 141 to extend, which will push the bottom of the support plate 144 upward. Since the position of the top of the support plate 144 remains unchanged, the top surface of the support plate 144 will eventually be approximately parallel to the top surface of the seat 11. The user can place their legs on the support plate 144, which will support the user's legs, making it easier for the user to rest and improving comfort. When not in use, pressing the control panel 131 again will retract the piston rod of the cylinder 141, causing the bottom of the support plate 144 to move downward, so that the support plate 144 is retracted under the seat 11 in a vertical state, without affecting the user's movement.

[0031] Reference Figures 1-3 The lifting mechanism 3 includes a lifting assembly 31 and a drive assembly 32. A base 33 is spaced apart below the mounting plate 21, and the base 33 is parallel to the mounting plate 21. First fixing plates 211 are vertically fixed at both ends of the bottom surface of the mounting plate 21 along its width direction, and second fixing plates 331 are vertically fixed at both ends of the top surface of the base 33 along its width direction. There are two sets of lifting assemblies 31, arranged symmetrically between the mounting plate 21 and the base 33 at both ends of the mounting plate 21 along its length direction. Each set of lifting assemblies 31 includes a first slide rod 311, a second slide rod 312, a first connecting rod 313, and a second connecting rod 314. The first slide rod 311 is fixed between the two first fixing plates 211 and is arranged along the width direction of the mounting plate 21. The second slide rod 312 is fixed between the two second fixing plates 331 and is arranged along the width direction of the base 33. One end of the first slide rod 311 is fixed with a first connecting seat 315, and the other end is slidably connected to a second connecting seat 316. A first hinge rod 3151 is fixedly mounted at the bottom end of the first connecting seat 315, and a second hinge rod 3161 is fixedly mounted at the bottom end of the second connecting seat 316. A third connecting seat 317 is fixedly mounted below the first connecting seat 315, and a fourth connecting seat 318 is slidably connected to the other end of the second sliding rod 312. A third hinge rod 3171 is fixedly mounted at the top end of the third connecting seat 317, and a fourth hinge rod 3181 is fixedly mounted at the top end of the fourth connecting seat 318. The first connecting rod 313 and the second connecting rod 314 are arranged in a scissor-like configuration. The top end of the first connecting rod 313 is hinged to the first hinge rod 3151, and the bottom end is hinged to the fourth hinge rod 3181. The top end of the second connecting rod 314 is hinged to the second hinge rod 3161, and the bottom end is hinged to the third hinge rod 3171. The middle part of the first connecting rod 313 is also hinged to the middle part of the second connecting rod 314. The drive assembly 32 drives the two fourth connecting seats 318 to move.

[0032] When the drive assembly 32 is activated, it can move the two fourth connecting seats 318, causing the fourth connecting seats 318 to move closer to the third connecting seat 317. Since the first connecting rod 313 and the second connecting rod 314 are hinged in the middle, the second connecting seat 316 moves closer to the first connecting seat 315, thereby raising the height. Similarly, the drive assembly 32 can also move the two fourth connecting seats 318 away from the third connecting seat 317, thereby lowering the height, and finally adjusting the seat height.

[0033] Reference Figure 1 and Figure 3 The drive assembly 32 includes a first motor 321, a screw 322, and a slider 323. The control panel 131 is electrically connected to the first motor 321. The first motor 321 is fixed to the side of the second fixing plate 331 near the fourth connecting seat 318. The output shaft of the first motor 321 faces the first connecting seat 315 and passes through the second fixing plate 331 and is rotatably connected to it. A fifth connecting seat 324 is fixed to the top surface of the base 33 near the first connecting seat 315. The screw 322 is arranged along the width direction of the base 33. One end of the screw 322 is rotatably connected to the fifth connecting seat 324, and the other end is fixedly connected to the output shaft of the first motor 321. The screw 322 passes through the slider 323 and is threadedly connected to it. The two ends of the slider 323 along its length direction are respectively fixedly connected to the two fourth connecting seats 318.

[0034] When the first motor 321 is started, the output shaft of the first motor 321 can drive the screw 322 to rotate. Due to the threaded connection between the slider 323 and the screw 322 and the limiting effect of the two fourth connecting seats 318, the slider 323 can only move along the screw 322, thereby causing the two fourth connecting seats 318 to move and provide power to the lifting assembly 31.

[0035] Reference Figure 3 The moving mechanism 4 includes two driving wheels 41 and two driven wheels 42. The driving wheels 41 are rotatably connected to the bottom surface of the base 33 near the foot pedal 22, and are located at both ends of the base 33 along its length. A second motor 43 is fixedly mounted on the bottom surface of the base 33 near the two driving wheels 41. The output shaft of the second motor 43 is fixedly connected to the center position of the driving wheel 41, and the second motor 43 is electrically connected to the control panel 131. The driven wheels 42 are also two, rotatably connected to the bottom surface of the base 33 away from the driving wheels 41, and are located at both ends of the base 33 along its length. In use, pressing the control panel 131 activates the second motors 43, which drive the driving wheels 41 to rotate, thus causing the two driven wheels 42 to rotate, thereby moving the seat.

[0036] The working principle of this utility model is as follows: When in use, the user can press the control panel 131 to start the lifting mechanism 3 according to their height and physical condition, thereby adjusting the height of the chair 1. Then, the user can sit on the seat 11 and place their feet on the foot pedal 22. Alternatively, the user can start the support mechanism 14 through the control panel 131 to open the support plate 144 and place their legs on the support plate 144 to improve comfort. The user can also control the movement of the seat through the control panel 131, which improves convenience.

[0037] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. An adjustable height geriatric chair, characterized by: The utility model provides chair (1), support (2), lifting mechanism (3), chair (1) sets up on support (2), support (2) sets up on lifting mechanism (3), support (2) bottom end is fixed with the installation board (21) that sets up parallel to ground, the installation board (21) below interval sets up with its parallel base (33), the installation board (21) bottom surface along its width direction both ends are respectively vertically fixed with first fixed plate (211), the base (33) top surface along its width direction both ends are respectively vertically fixed with second fixed plate (331), lifting mechanism (3) includes two groups lifting assembly (31), drive assembly (32), two groups lifting assembly (31) symmetry sets up between installation board (21) and base (33), and sets up in installation board (21) along its length direction both ends; Each lifting assembly (31) includes first sliding rod (311) fixed between two first fixed plates (211), second sliding rod (312) fixed between two second fixed plates (331), first connecting rod (313) and second connecting rod (314) are arranged in a scissors shape, one end of first sliding rod (311) is fixed with first connecting seat (315), the other end is slidably connected with second connecting seat (316), second sliding rod (312) is fixed with third connecting seat (317) below first connecting seat (315), the other end is slidably connected with fourth connecting seat (318), first connecting seat (315) is fixed with first hinged rod (3151), second connecting seat (316) is fixed with second hinged rod (3161), third connecting seat (317) is fixed with third hinged rod (3171), fourth connecting seat (318) is fixed with fourth hinged rod (3181), both ends of first connecting rod (313) are hingedly connected with first hinged rod (3151) and fourth hinged rod (3181) respectively, both ends of second connecting rod (314) are hingedly connected with second hinged rod (3161) and third hinged rod (3171) respectively, the middle part of first connecting rod (313) and second connecting rod (314) is also hingedly connected, drive assembly (32) drives two fourth connecting seats (318) to move.

2. Height-adjustable chair for the elderly according to claim 1, characterized in that: Drive assembly (32) includes first motor (321) fixed on second fixed plate (331) close to fourth connecting seat (318), screw rod (322), sliding block (323) threadedly connected on screw rod (322), fifth connecting seat (324), the output shaft of first motor (321) passes through second fixed plate (331) and is rotatably connected therewith, fifth connecting seat (324) is fixed on the top surface of base (33) close to one side of first connecting seat (315), one end of screw rod (322) is rotatably connected on fifth connecting seat (324), the other end is fixedly connected with the output shaft of first motor (321), both ends of sliding block (323) along its length direction are fixedly connected with two fourth connecting seats (318) respectively.

3. The height-adjustable geriatric chair according to claim 1, characterized in that: The chair (1) comprises a seat (11) arranged parallel to the ground, a backrest (12) vertically fixed at one end of the seat (11) along the width direction thereof, and two "H"-shaped armrests (13) fixed at both ends of the seat (11) along the length direction thereof, and the bottom ends of the armrests (13) are fixedly connected with the support (2).

4. Height-adjustable chair for the elderly according to claim 3, characterized in that: The chair (1) further comprises a supporting mechanism (14) comprising two air cylinders (141), two first connecting plates (142), two second connecting plates (143), and an arc-shaped supporting plate (144), the two air cylinders (141) are symmetrically arranged at both ends of the support (2) along the length direction thereof below the seat (11), the piston rods of the air cylinders (141) are directed away from the backrest (12), one end of the air cylinder (141) is fixedly connected with the support (2), the two first connecting plates (142) and the second connecting plates (143) correspond to the two air cylinders (141) respectively, one end of the first connecting plate (142) is fixedly arranged on the piston rod of the air cylinder (141) along the length direction thereof, the other end of the first connecting plate (142) is fixedly arranged with a rotating rod (145), one end of the second connecting plate (143) is hingedly connected with the rotating rod (145) along the length direction thereof, the other end of the second connecting plate (143) is fixedly arranged at the bottom end of the supporting plate (144), and the top end of the supporting plate (144) is hingedly arranged below the seat (11) away from the backrest (12).

5. The height-adjustable geriatric chair according to claim 1, characterized in that: The seat further comprises a moving mechanism (4) arranged below the lifting mechanism (3), the moving mechanism (4) comprises two driving wheels (41), two driven wheels (42), and two second motors (43), the two driving wheels (41) are rotatably connected at one end of the bottom surface of the base (33) and are arranged at intervals along the length direction of the base (33), the two second motors (43) are fixedly arranged at positions close to the driving wheels (41) on the bottom surface of the base (33), and the output shafts of the second motors (43) are fixedly connected with the centers of the driving wheels (41), and the two driven wheels (42) are rotatably connected at one side of the base (33) away from the driving wheels (41) and are arranged at intervals along the length direction of the base (33).

6. The height-adjustable geriatric chair according to claim 1, characterized in that: The top end of the mounting plate (21) away from the backrest (12) is fixedly arranged with a foot pedal (22), and the foot pedal (22) is fixedly arranged with a non-slip pad (221).

7. The height-adjustable geriatric chair according to claim 3, characterized in that: The seat (11) and the backrest (12) are respectively fixedly arranged with silica gel pads (15).

8. The height-adjustable geriatric chair according to claim 3, characterized in that: The backrest (12) is fixedly arranged with a headrest (16), and the seat (11) is fixedly arranged with a waist rest (17).

9. The height-adjustable geriatric chair according to claim 3, characterized in that: The armrest (13) is fixedly arranged with a control panel (131), and the control panel (131) is electrically connected with the two air cylinders (141), the first motor (321), and the two second motors (43).

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