CN113317646A - Dining chair suitable for aging - Google Patents

Abstract

The invention discloses an aging-suitable dining chair which comprises a seat bottom plate, a seat back plate, two side armrests, a dining plate, a base and a lifting support mechanism. The dining chair suitable for aging is rotatably installed by utilizing the dinning plate, so that the dinning plate can be rotated and pushed away when the old sits in the dining chair, and the dinning plate can be conveniently rotated to the front of the old after the old sits in the dining chair; the arc-shaped notch and the elastic belt are matched and sleeved on the neck of the old, so that food is prevented from falling under a table or on clothes; the falling food is collected by the collecting pit, so that the cleaning is convenient; the height position of the seat bottom plate can be conveniently adjusted by utilizing the lifting support mechanism, so that the height of the seat bottom plate is suitable for the old with different heights; the comfort of the seat back plate and the seat bottom plate is improved by utilizing the flexible pad; the alarm button and the release button are utilized, so that the old can press the alarm button under emergency, the controller controls the loudspeaker to give an alarm to the nursing personnel around, and the release button is pressed to release the alarm after the nursing personnel arrive.

Description

Dining chair suitable for aging

Technical Field

The invention relates to a dining chair, in particular to an aging-suitable dining chair.

Background

A dining chair is a chair used for a user to sit and lean during dining, while a general dining chair is used by a special group such as children, and a child dining chair is mainly used for limiting a moving area of a child and providing a dining table so that the child can safely eat on the dining table. However, there is no dining chair for the elderly in the market, the structure of the children dining chair is not suitable for the elderly, and the elderly need more convenient dining chair, so there is an urgent need for a special dining chair for the elderly.

Disclosure of Invention

The purpose of the invention is as follows: the dining chair suitable for aging is convenient for the old to have a meal and is convenient to adjust.

The technical scheme is as follows: the invention provides an aging-suitable dining chair which comprises a seat bottom plate, a seat back plate, two side armrests, a dining plate, a base and a lifting support mechanism, wherein the seat bottom plate is provided with a plurality of grooves;

a side upright post is vertically fixed at each of four top corners of the upper side surface of the seat bottom plate; the two side handrails are respectively and longitudinally fixed on the side upright columns at the left side and the right side; the lower side edge of the seat back plate is hinged with the lower parts of the two side upright posts at the rear side; the right side of the dinning plate is horizontally and rotatably arranged on the right side handrail, and the lower side surface of the dinning plate is pressed on the upper side surfaces of the two side handrails; a dinning plate clamping mechanism for clamping the dinning plate is arranged on the side handrail on the left side; a limit groove is arranged on the upper side surface of the dinning plate; a strip-shaped limiting groove is arranged at the rear edge of the upper side surface of the dinning plate; a buckle flat bar is inserted in the strip-shaped limiting groove; a rubber leakage-proof pad is fixed at the upper edge of the buckle flat strip; an arc-shaped notch is arranged at the rear edge of the rubber leakage-proof pad; an elastic belt is connected between the left edge and the right edge of the arc-shaped notch; the lifting support mechanism is arranged between the base and the seat bottom plate and is used for adjusting the height position of the seat bottom plate;

a power supply module is arranged on the base; a control box is arranged on the seat bottom plate; a controller and a memory are arranged in the control box; the memory is electrically connected with the controller; the outer wall of the control box is provided with a loudspeaker, an alarm key and a release key which are electrically connected with the controller; the power module supplies power to the controller and the memory.

Further, the dinning plate buckling mechanism comprises a telescopic cylinder, a locking tension spring and a pull ring; a limit circular groove is arranged at the left back vertex angle of the upper side surface of the dinning plate; a locking notch is arranged on the rear side edge of the dinning plate and is communicated with the limiting circular groove, and the width of the locking notch is smaller than the diameter of the limiting circular groove;

a cylindrical jack is arranged on the upper side surface of the side handrail on the left side; the lower end of the telescopic cylinder is inserted into the cylindrical insertion hole, and a tension spring mounting hole is coaxially arranged at the lower end of the telescopic cylinder; the locking tension spring is elastically connected between the hole bottom of the tension spring mounting hole and the hole bottom of the cylindrical jack; a limiting cylinder inserted in the limiting circular groove is coaxially fixed at the upper end of the telescopic cylinder, and the diameter of the limiting cylinder is larger than that of the telescopic cylinder; the pull ring is installed on spacing cylinder.

Furthermore, a top circular groove for accommodating the pull ring is coaxially arranged at the top of the limiting cylinder; a pull ring seat is arranged in the top circular groove; the pull ring is hinged on the pull ring seat.

Furthermore, a pitching driving mechanism for adjusting the inclination angle of the seat back plate is arranged on the seat bottom plate; the pitching driving mechanism comprises a pitching driving motor, a pitching driving screw rod and a pitching internal threaded pipe;

a rotary support is arranged in the middle of the rear side edge of the seat bottom plate; the pitching driving motor is hinged on the rotating support; the lower end of the pitching driving screw rod is butted on an output shaft of the pitching driving motor; the upper end of the pitching internal thread pipe is hinged on the rear side surface of the seat back plate; the upper end of the pitching driving screw rod is screwed on the lower end of the pitching internal threaded pipe;

a pitching driving circuit electrically connected with the controller is arranged in the control box; the controller drives the pitching driving motor to rotate through the pitching driving circuit; a forward tilting key and a backward tilting key which are electrically connected with the controller are arranged on the outer wall of the control box; the power module supplies power for the pitching driving circuit.

Furthermore, the lifting support mechanism comprises a lifting sleeve and a lifting rod;

the lower end of the lifting sleeve is fixed on the upper side surface of the base; a lifting driving motor is arranged on the upper side surface of the base and positioned in the lifting sleeve, and an output shaft of the lifting driving motor is vertically upward; the upper end of the lifting rod is fixed on the lower side surface of the seat bottom plate, and the lower end of the lifting rod is inserted into the lifting sleeve; a lifting threaded hole is coaxially arranged on the lower end of the lifting rod; a lifting driving screw is installed on an output shaft of the lifting driving motor in a butt joint mode; the lifting driving screw is screwed on the lifting threaded hole of the lifting rod;

a lifting drive circuit electrically connected with the controller is arranged in the control box; the controller drives the lifting driving motor to rotate through the lifting driving circuit; an ascending key and a descending key which are electrically connected with the controller are arranged on the outer wall of the control box; the power module supplies power for the lifting driving circuit.

Furthermore, a long hole is vertically arranged at the front side of the lifting sleeve; an inclined stay bar is fixed on the lifting rod; the other end of the diagonal brace passes through the strip hole and then is fixed on the seat bottom plate.

Furthermore, a pedal structure is arranged on the diagonal brace; the pedal structure comprises a sliding seat, a supporting square tube, a supporting square rod and a pedal;

a sliding inclined hole is formed in the sliding seat; the middle part of the diagonal brace penetrates through the sliding diagonal hole; a plurality of positioning holes are arranged on the diagonal brace at intervals; a positioning bolt is screwed on the sliding seat through threads and is inserted into one positioning hole; the rear end of the support square pipe is fixed on the front side surface of the sliding seat; the rear end of the supporting square rod is inserted into the front end of the supporting square tube, and the front end of the supporting square rod is fixed on the rear side edge of the pedal; a clamping bolt for pressing the supporting square rod is screwed at the front end of the supporting square tube; the upper side surface of the pedal is provided with a non-slip mat.

Furthermore, a supporting and moving mechanism is arranged on the base; the supporting and moving mechanism comprises a telescopic driving motor, four anti-toppling branches, two universal wheels and two supporting rollers;

an installation cavity is arranged in the base; the four anti-toppling branches are respectively arranged on the front, the rear, the left and the right side mountains of the base; the telescopic driving motor is arranged in the center of the upper side surface of the base and is used for driving the four anti-toppling branches; the front part and the rear part of the left side surface and the right side surface of the base are respectively provided with a roller notch, and the four roller notches are communicated with the lower side surface of the base; the two universal wheels are respectively arranged on the two roller wheel notches on the front side; the two supporting rollers are respectively arranged on the two roller notches at the rear side;

a telescopic driving circuit electrically connected with the controller is arranged in the control box; the controller drives the telescopic driving motor to rotate through the telescopic driving circuit; an extension key and a contraction key which are electrically connected with the controller are arranged on the outer wall of the control box; the power module supplies power for the telescopic driving circuit.

Furthermore, each anti-toppling branch comprises a telescopic square rod, a telescopic driving screw rod and a driven bevel gear;

the front, the rear, the left and the right sides of the base are provided with telescopic square holes; one ends of the four telescopic square rods respectively penetrate through the four telescopic square holes to extend into the mounting cavity, and the four telescopic square rods are distributed in a cross shape; a ball seat is arranged on the lower side surface of the other end of the telescopic square rod; a supporting ball for pressing on the ground is arranged on the ball seat; the driving bevel gear is arranged on the extending-in end of the output shaft of the telescopic driving motor; a telescopic threaded hole is coaxially arranged on the extending end of the telescopic square rod; the telescopic driving screw is rotatably arranged in the mounting cavity; one end of the telescopic driving screw is screwed on the telescopic threaded hole; the driven bevel gear is arranged at the other end of the telescopic driving screw rod, and the driving bevel gear is meshed with the four driven bevel gears simultaneously.

Furthermore, an arc-shaped push rod is horizontally arranged on the rear side of the seat back plate in a surrounding manner, and two ends of the arc-shaped push rod are respectively fixed on the rear side surfaces of the two side armrests; an anti-slip sleeve is arranged in the middle of the arc push rod.

Compared with the prior art, the invention has the beneficial effects that: the dinning plate is rotatably installed, so that the dinning plate is rotated and pushed away when the old people sit, the dinning plate can be conveniently placed, and meanwhile, the dinning plate can be conveniently rotated to the front of the old people after the old people sit; the meal plate is ensured to be stable when a meal is taken by using the meal plate buckling mechanism, and the meal plate is prevented from being pushed away; the food is prevented from sliding down by using the limiting groove; the arc-shaped notch and the elastic belt are matched and sleeved on the neck of the old, so that food is prevented from falling under a table or on clothes; the falling food is collected by the collecting pit, so that the cleaning is convenient; the rubber leakage-proof pad is convenient to disassemble and assemble by matching the buckling flat strip with the strip-shaped limiting groove; the height position of the seat bottom plate can be conveniently adjusted by utilizing the lifting support mechanism, so that the height of the seat bottom plate is suitable for the old with different heights; the comfort of the seat back plate and the seat bottom plate is improved by utilizing the flexible pad; the alarm button and the release button are utilized, so that the old can press the alarm button under emergency, the controller controls the loudspeaker to give an alarm to the nursing personnel around, and the release button is pressed to release the alarm after the nursing personnel arrive.

Drawings

FIG. 1 is a left side view of the present invention;

FIG. 2 is a schematic view of the dining plate latching mechanism of the present invention;

FIG. 3 is a top plan view of the dining board of the present invention;

FIG. 4 is a schematic diagram of the transmission of the support and movement mechanism of the present invention;

fig. 5 is a schematic circuit structure of the present invention.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in fig. 1-5, the present invention provides a dining chair suitable for aging, comprising: the chair comprises a seat bottom plate 5, a seat back plate 9, two side armrests 8, a dining plate 47, a base 1 and a lifting support mechanism;

a side upright post 7 is vertically fixed at four top corners of the upper side surface of the seat bottom plate 5; two side handrails 8 are respectively and longitudinally fixed on the side upright posts 7 at the left side and the right side; the lower side edge of the seat back plate 9 is hinged with the lower parts of the two side upright posts 7 at the rear side; flexible cushions 6 are arranged on the upper side surface of the seat bottom plate 5 and the front side surface of the seat back plate 9; the right side of the dinning plate 47 is horizontally and rotatably arranged on the right side handrail 8, and the lower side surface of the dinning plate 47 is pressed on the upper side surfaces of the two side handrails 8; a meal plate buckling mechanism for buckling the meal plate 47 is arranged on the side handrail 8 at the left side; a limit groove 56 is arranged on the upper side surface of the dinning plate 47; a strip-shaped limiting groove 54 is arranged at the rear edge of the upper side surface of the dinning plate 47; a block of buckling flat bar 55 is inserted in the strip-shaped limiting groove 54; a rubber leakage-proof pad 48 is fixed at the upper edge of the buckling flat strip 55; an arc-shaped notch 51 is arranged at the rear edge of the rubber leakage-proof pad 48; an elastic belt 52 is connected between the left edge and the right edge of the arc-shaped notch 51; the middle part of the rubber leakage-proof pad 48 is recessed downwards to form a collecting recess 49; the lifting support mechanism is arranged between the base 1 and the seat bottom plate 5 and is used for adjusting the height position of the seat bottom plate 5;

a power supply module 10 is arranged on the base 1; a control box 34 is mounted on the seat pan 5; a controller and a memory are provided in the control box 34; the memory is electrically connected with the controller; a loudspeaker 19, an alarm button 41 and a release button 42 which are electrically connected with the controller are arranged on the outer wall of the control box 34; the power module 10 supplies power to the controller and the memory.

The dining plate 47 is rotatably mounted, so that the dining plate 47 can be rotated and pushed away when the old people sit in the seat, and meanwhile, the dining plate 47 can be rotated to the front of the old people after the old people sit in the seat; the meal plate clamping mechanism is used for ensuring the stability of the meal plate 47 during meal, and preventing the meal plate 47 from being pushed away; the food is prevented from sliding down by the limiting groove 56; the arc-shaped notch 51 and the elastic band 52 are matched and sleeved on the neck of the old, so that food is prevented from falling under a table or on clothes; the fallen food is collected by the collecting recess 49, which is convenient for cleaning; the rubber leakage-proof pad 48 is convenient to disassemble and assemble by matching the buckling flat strip 55 with the strip-shaped limiting groove 54; the height position of the seat bottom plate 5 can be conveniently adjusted by utilizing the lifting support mechanism, so that the height of the seat bottom plate 5 is suitable for the old with different heights; the comfort of the seat back plate 9 and the seat bottom plate 5 is improved by the flexible cushion 6; the alarm button 41 and the release button 42 are used to facilitate the old man to press the alarm button 41 in an emergency, the controller controls the speaker 19 to give an alarm to the caretaker around, and the release button 42 is pressed to release the alarm after the caretaker arrives.

Further, the dinning board fastening mechanism comprises a telescopic cylinder 65, a locking tension spring 68 and a pull ring 50; a limit circular groove 58 is arranged at the left back vertex angle of the upper side surface of the dinning plate 47; a locking notch 57 is arranged on the rear side edge of the dinning plate 47, the locking notch 57 is communicated with the limiting circular groove 58, and the width of the locking notch 57 is smaller than the diameter of the limiting circular groove 58;

a cylindrical insertion hole 67 is formed in the upper side face of the left side handrail 8; the lower end of the telescopic cylinder 65 is inserted into the cylinder jack 67, and the lower end of the telescopic cylinder 65 is coaxially provided with a tension spring mounting hole 66; the locking tension spring 68 is elastically connected between the hole bottom of the tension spring mounting hole 66 and the hole bottom of the cylindrical insertion hole 67; a limiting cylinder 64 inserted in the limiting circular groove 58 is coaxially fixed on the upper end of the telescopic cylinder 65, and the diameter of the limiting cylinder 64 is larger than that of the telescopic cylinder 65; the pull ring 50 is mounted on a restraining cylinder 64.

The limit cylinder 64 is inserted into the limit circular groove 58, so that the dinner plate 47 is clamped; the locking tension spring 68 is utilized to pull the telescopic cylinder 65 downwards, so that the limiting cylinder 64 is stably buckled in the limiting circular groove 58; the use of locking notches 57 facilitates the placement of telescoping cylinders 65; the telescopic cylinder 65 and the limiting cylinder 64 can be conveniently pulled upwards by the pull ring 50.

Further, a top circular groove 62 for accommodating the pull ring 50 is coaxially arranged at the top of the limiting cylinder 64; a pull ring seat 63 is arranged in the top circular groove 62; the tab 50 is hingedly mounted on a tab holder 63.

The pull ring 50 is mounted on the pull ring seat 63 in a hinged manner by the pull ring 50, so that the pull ring 50 is conveniently accommodated in the top circular groove 62, and the pull ring 50 is ensured not to protrude and press against the hand.

Further, a pitching driving mechanism for adjusting the inclination angle of the seat back plate 9 is arranged on the seat bottom plate 5; the pitch driving mechanism comprises a pitch driving motor 44, a pitch driving screw 45 and a pitch internal threaded pipe 46;

a rotary support 43 is arranged in the middle of the rear side edge of the seat bottom plate 5; the pitch driving motor 44 is hinged on the rotating support 43; the lower end of the pitch drive screw 45 is butted on the output shaft of the pitch drive motor 44; the upper end of the pitching internal thread pipe 46 is hinged on the rear side surface of the seat back plate 9; the upper end of the pitching driving screw rod 45 is screwed on the lower end of the pitching internally threaded pipe 46;

a pitch driving circuit electrically connected with the controller is arranged in the control box 34; the controller drives the pitch driving motor 44 to rotate through the pitch driving circuit; a forward tilting button 37 and a backward tilting button 38 which are electrically connected with the controller are arranged on the outer wall of the control box 34; the power module 10 supplies power to the pitch drive circuit.

The matching between the pitching driving screw 45 and the pitching internal threaded pipe 46 is utilized, the length of the pitching driving screw 45 extending out of the pitching internal threaded pipe 46 is adjusted through the rotation of the pitching driving motor 44, and the angle adjustment of the seat back plate 9 is realized; the forward-leaning button 37 and the backward-leaning button 38 are used for controlling the pitch driving motor 44 to rotate forward and backward through the controller, so that the inclination angle of the seat back plate 9 can be adjusted conveniently.

Further, the lifting support mechanism comprises a lifting sleeve 2 and a lifting rod 3;

the lower end of the lifting sleeve 2 is fixed on the upper side surface of the base 1; a lifting driving motor is arranged on the upper side surface of the base 1 and positioned in the lifting sleeve 2, and an output shaft of the lifting driving motor is vertically upward; the upper end of the lifting rod 3 is fixed on the lower side surface of the seat bottom plate 5, and the lower end of the lifting rod 3 is inserted in the lifting sleeve 2; a lifting threaded hole is coaxially arranged on the lower end of the lifting rod 3; a lifting driving screw is installed on an output shaft of the lifting driving motor in a butt joint mode; the lifting driving screw is screwed on the lifting threaded hole of the lifting rod 3;

a lifting drive circuit electrically connected with the controller is arranged in the control box 34; the controller drives the lifting driving motor to rotate through the lifting driving circuit; an ascending key 35 and a descending key 36 electrically connected with the controller are arranged on the outer wall of the control box 34; the power module 10 supplies power to the lifting drive circuit.

By utilizing the matching between the lifting rod 3 and the lifting driving screw rod, the lifting driving motor drives the lifting driving screw rod to rotate so as to drive the lifting rod 3 to ascend or descend, so that the height position of the seat bottom plate 5 is adjusted; the ascending key 35 and the descending key 36 are used for controlling the ascending and descending driving motor to rotate forward and backward through the controller, so that the height position of the seat bottom plate 5 can be conveniently adjusted.

Further, a long hole 33 is vertically arranged at the front side of the lifting sleeve 2; a diagonal brace 23 is fixed on the lifting rod 3; the other end of the diagonal brace 23 passes through the elongated hole 33 and is fixed to the seat pan 5.

The cooperation between the inclined stay bar 23 and the strip hole 33 ensures that the lifting rod 3 always moves vertically; the seat pan 5 is supported by the diagonal braces 23, which increases the structural strength.

Furthermore, a pedal structure is mounted on the diagonal brace 23; the pedal structure comprises a sliding seat 26, a supporting square tube 28, a supporting square rod 29 and a pedal 30;

a sliding inclined hole 27 is arranged on the sliding seat 26; the middle part of the diagonal brace 23 penetrates through the sliding diagonal hole 27; a plurality of positioning holes 24 are arranged on the inclined stay bar 23 at intervals; a positioning bolt 25 is screwed on the sliding seat 26 in a threaded manner, and the positioning bolt 25 is inserted into one positioning hole 24; the rear end of the support square pipe 28 is fixed on the front side surface of the sliding seat 26; the rear end of the supporting square rod 29 is inserted into the front end of the supporting square pipe 28, and the front end of the supporting square rod 29 is fixed on the rear side edge of the pedal 30; a clamping bolt 31 for pressing the supporting square rod 29 is screwed at the front end of the supporting square tube 28; a non-slip pad 32 is provided on the upper side of the footboard 30.

The height position of the pedal 30 is adjusted by the cooperation of the sliding inclined hole 27 and the inclined stay 23, so that the feet of the old people with different heights can step on the pedal 30, and the sliding seat 26 is fixed on the inclined stay 23 by the cooperation of the positioning hole 24 and the positioning bolt 25; the front and rear positions of the pedal 30 are adjusted by the matching between the supporting square tube 28 and the supporting square rod 29, so that the comfort is improved; the friction is increased by the non-slip pad 32.

Further, a supporting and moving mechanism is arranged on the base 1; the supporting and moving mechanism comprises a telescopic driving motor 21, four anti-toppling branches, two universal wheels 15 and two supporting rollers 16;

an installation cavity is arranged in the base 1; the four anti-toppling branches are respectively arranged on the front, the rear, the left and the right side mountains of the base 1; the telescopic driving motor 21 is arranged at the center of the upper side surface of the base 1 and is used for driving four anti-toppling branches; the front part and the rear part of the left side surface and the right side surface of the base 1 are respectively provided with a roller notch 14, and the four roller notches 14 are communicated with the lower side surface of the base 1; two universal wheels 15 are respectively arranged on the two roller wheel notches 14 on the front side; two support rollers 16 are respectively arranged on the two roller notches 14 at the rear side;

a telescopic driving circuit electrically connected with the controller is arranged in the control box 34; the controller drives the telescopic driving motor 21 to rotate through the telescopic driving circuit; an extension button 39 and a contraction button 40 which are electrically connected with the controller are arranged on the outer wall of the control box 34; the power module 10 supplies power to the telescopic driving circuit.

The four anti-toppling branches are utilized to extend outwards after the old people sit in the seat for large-scale support, so that toppling is prevented; the movement of the dining chair is realized by two supporting rollers 16 and two universal wheels 15; by utilizing the extension key 39 and the contraction key 40, the controller drives the telescopic driving motor 21 to rotate forward and backward, so that the anti-toppling branch can be conveniently adjusted for supporting.

Further, each anti-toppling branch comprises a telescopic square rod 11, a telescopic driving screw 59 and a driven bevel gear 60;

the front, the rear, the left and the right sides of the base 1 are provided with telescopic square holes 20; one end of each of the four telescopic square rods 11 respectively penetrates through the four telescopic square holes 20 to extend into the mounting cavity, and the four telescopic square rods 11 are distributed in a cross shape; a ball seat 12 is arranged on the lower side surface of the other end of the telescopic square rod 11; a support ball 13 for pressing on the ground is arranged on the ball seat 12; the driving bevel gear 61 is arranged on the extending end of the output shaft of the telescopic driving motor 21; a telescopic threaded hole is coaxially arranged on the extending end of the telescopic square rod 11; the telescopic driving screw 59 is rotatably arranged in the mounting cavity; one end of the telescopic driving screw 59 is screwed on the telescopic threaded hole; a driven bevel gear 60 is installed on the other end of the telescopic drive screw 59, and a driving bevel gear 61 is simultaneously engaged with the four driven bevel gears 60.

By utilizing the matching among the driving bevel gear 61, the four driven bevel gears 60, the four telescopic square rods 11 and the four telescopic driving screws 59, the driving bevel gear 61 is driven to rotate by the telescopic driving motor 21 to drive the four telescopic driving screws 59 to synchronously rotate, so that the four telescopic square rods 11 are driven to synchronously telescope, and the anti-toppling support is realized; the four telescopic square rods 11 are guided by the four telescopic square holes 20, so that the moving directions of the four telescopic square rods 11 are ensured.

Further, an arc push rod 17 is horizontally arranged on the rear side of the seat back plate 9 in a surrounding manner, and two ends of the arc push rod 17 are respectively fixed on the rear side surfaces of the two side armrests 8; an anti-slip sleeve 18 is arranged in the middle of the arc push rod 17.

The arc-shaped push rod 17 is used for facilitating the nursing staff to push the dining chair; the friction force is increased by the anti-slip sleeve 18, so that the hand is prevented from slipping.

In the aging-suitable dining chair provided by the invention, the controller adopts the existing ARM processor module for realizing coordination control; the loudspeaker adopts the existing loudspeaker and is used for giving an alarm under the control of the controller; the memory adopts the existing memory; the pitching drive motor 44, the lifting drive motor and the telescopic drive motor 21 are all existing stepping motors; the pitching drive circuit, the lifting drive circuit and the telescopic drive circuit all adopt corresponding stepping motor drive circuits.

When the aging-suitable dining chair provided by the invention is installed and used, the dining chair is pushed to a specified position; then, the extension key 39 is pressed, the controller receives signals and then drives the telescopic driving motor 21 to rotate through the telescopic driving circuit, and the four telescopic driving screws 59 respectively drive the four telescopic square rods 11 to synchronously extend outwards for supporting; then the ascending key 35 or the descending key 36 is pressed, the controller drives the ascending and descending driving motor to rotate through the ascending and descending driving circuit after receiving signals, the ascending and descending rod 3 drives the seat bottom plate 5 to ascend or descend until the seat bottom plate is suitable for the old, the forward-leaning key 37 or the backward-leaning key 38 is pressed after the old sits on the seat, the controller drives the pitching driving motor 44 to rotate through the pitching driving circuit after receiving signals, the pitching driving screw 45 drives the pitching internal thread pipe 46 to rotate, and the seat back plate 9 is driven to incline forward or lean backward until the old leans back comfortably; then the dining plate 47 is rotated to the front of the old, the telescopic cylinder 65 is pulled up through the pull ring 50, the telescopic cylinder 65 is inserted on the locking notch 57, and the limiting cylinder 64 is inserted in the limiting circular groove 58; finally, inserting the buckle flat bar 55 into the bar-shaped limiting groove 54, and sleeving the elastic band 52 on the neck of the old;

if special conditions occur, the alarm button 41 can be pressed, and the controller receives signals and then controls the loudspeaker to give an alarm so as to inform surrounding nursing personnel; the alarm is deactivated by the caregiver pressing the deactivation button 42 after his arrival.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An aging-suitable dining chair, which is characterized in that: comprises a seat bottom plate (5), a seat back plate (9), two side armrests (8), a dinning plate (47), a base (1) and a lifting support mechanism;

a side upright post (7) is vertically fixed at four top corners of the upper side surface of the seat bottom plate (5); two side handrails (8) are respectively and longitudinally fixed on the side upright posts (7) at the left side and the right side; the lower side edges of the seat back plate (9) are hinged with the lower parts of two side upright posts (7) at the rear side; the right side of the dinning plate (47) is horizontally and rotatably arranged on the right side handrail (8), and the lower side surface of the dinning plate (47) is pressed on the upper side surfaces of the two side handrails (8); a dinning plate buckling mechanism for buckling the dinning plate (47) is arranged on the side handrail (8) at the left side; a limit groove (56) is arranged on the upper side surface of the dinning plate (47); a strip-shaped limit groove (54) is arranged at the rear edge of the upper side surface of the dinning plate (47); a buckling flat bar (55) is inserted in the bar-shaped limiting groove (54); a rubber leakage-proof pad (48) is fixed at the upper edge of the buckling flat strip (55); an arc-shaped notch (51) is arranged at the rear edge of the rubber leakage-proof pad (48); an elastic belt (52) is connected between the left edge and the right edge of the arc-shaped notch (51); the lifting support mechanism is arranged between the base (1) and the seat bottom plate (5) and is used for adjusting the height position of the seat bottom plate (5);

a power supply module (10) is arranged on the base (1); a control box (34) is arranged on the seat bottom plate (5); a controller and a memory are arranged in the control box (34); the memory is electrically connected with the controller; a loudspeaker (19) electrically connected with the controller, an alarm key (41) and a release key (42) are arranged on the outer wall of the control box (34); the power module (10) supplies power to the controller and the memory.

2. The adaptable dining chair of claim 1, wherein: the dinning plate buckling mechanism comprises a telescopic cylinder (65), a locking tension spring (68) and a pull ring (50); a limiting circular groove (58) is arranged at the left back vertex angle of the upper side surface of the dinning plate (47); a locking notch (57) is arranged on the rear side edge of the dinning plate (47), the locking notch (57) is communicated with the limiting circular groove (58), and the width of the locking notch (57) is smaller than the diameter of the limiting circular groove (58);

a cylindrical insertion hole (67) is formed in the upper side face of the left side handrail (8); the lower end of the telescopic cylinder (65) is inserted into the cylinder jack (67), and a tension spring mounting hole (66) is coaxially arranged at the lower end of the telescopic cylinder (65); the locking tension spring (68) is elastically connected between the hole bottom of the tension spring mounting hole (66) and the hole bottom of the cylindrical insertion hole (67); a limiting cylinder (64) inserted in the limiting circular groove (58) is coaxially fixed at the upper end of the telescopic cylinder (65), and the diameter of the limiting cylinder (64) is larger than that of the telescopic cylinder (65); the pull ring (50) is arranged on the limiting cylinder (64).

3. The adaptable dining chair of claim 2, wherein: a top circular groove (62) for accommodating the pull ring (50) is coaxially arranged at the top of the limiting cylinder (64); a pull ring seat (63) is arranged in the top circular groove (62); the pull ring (50) is hinged on the pull ring seat (63).

4. The adaptable dining chair of claim 1, wherein: a pitching driving mechanism for adjusting the inclination angle of the seat back plate (9) is arranged on the seat bottom plate (5); the pitching driving mechanism comprises a pitching driving motor (44), a pitching driving screw rod (45) and a pitching internal threaded pipe (46);

a rotary support (43) is arranged in the middle of the rear side edge of the seat bottom plate (5); the pitching driving motor (44) is hinged on the rotating support (43); the lower end of the pitching driving screw rod (45) is butted on an output shaft of the pitching driving motor (44); the upper end of the pitching internal thread pipe (46) is hinged on the rear side surface of the seat back plate (9); the upper end of the pitching driving screw rod (45) is screwed on the lower end of the pitching internal threaded pipe (46);

a pitching driving circuit electrically connected with the controller is arranged in the control box (34); the controller drives the pitching driving motor (44) to rotate through the pitching driving circuit; a forward tilting key (37) and a backward tilting key (38) which are electrically connected with the controller are arranged on the outer wall of the control box (34); the power module (10) supplies power for the pitching driving circuit.

5. The adaptable dining chair of claim 1, wherein: the lifting support mechanism comprises a lifting sleeve (2) and a lifting rod (3);

the lower end of the lifting sleeve (2) is fixed on the upper side surface of the base (1); a lifting driving motor is arranged on the upper side surface of the base (1) and positioned in the lifting sleeve (2), and an output shaft of the lifting driving motor is vertically upward; the upper end of the lifting rod (3) is fixed on the lower side surface of the seat bottom plate (5), and the lower end of the lifting rod (3) is inserted into the lifting sleeve (2); a lifting threaded hole is coaxially arranged on the lower end of the lifting rod (3); a lifting driving screw is installed on an output shaft of the lifting driving motor in a butt joint mode; the lifting driving screw is screwed on a lifting threaded hole of the lifting rod (3);

a lifting driving circuit electrically connected with the controller is arranged in the control box (34); the controller drives the lifting driving motor to rotate through the lifting driving circuit; an ascending key (35) and a descending key (36) which are electrically connected with the controller are arranged on the outer wall of the control box (34); the power module (10) supplies power for the lifting drive circuit.

6. The adaptable dining chair of claim 5, wherein: a long hole (33) is vertically arranged at the front side of the lifting sleeve (2); a diagonal brace (23) is fixed on the lifting rod (3); the other end of the inclined stay bar (23) passes through the long hole (33) and then is fixed on the seat bottom plate (5).

7. The adaptable dining chair of claim 6, wherein: a pedal structure is arranged on the inclined stay bar (23); the pedal structure comprises a sliding seat (26), a supporting square tube (28), a supporting square rod (29) and a pedal plate (30);

a sliding inclined hole (27) is arranged on the sliding seat (26); the middle part of the diagonal brace (23) penetrates through the sliding diagonal hole (27); a plurality of positioning holes (24) are arranged on the inclined stay bar (23) at intervals; a positioning bolt (25) is screwed on the sliding seat (26) in a threaded manner, and the positioning bolt (25) is inserted into one positioning hole (24); the rear end of the support square pipe (28) is fixed on the front side surface of the sliding seat (26); the rear end of the supporting square rod (29) is inserted into the front end of the supporting square pipe (28), and the front end of the supporting square rod (29) is fixed on the rear side edge of the pedal (30); a clamping bolt (31) for pressing the supporting square rod (29) is screwed at the front end of the supporting square tube (28); a non-slip mat (32) is arranged on the upper side surface of the pedal (30).

8. The adaptable dining chair of claim 1, wherein: a supporting and moving mechanism is arranged on the base (1); the supporting and moving mechanism comprises a telescopic driving motor (21), four anti-toppling branches, two universal wheels (15) and two supporting rollers (16);

an installation cavity is arranged in the base (1); the four anti-toppling branches are respectively arranged on the front, the rear, the left and the right side mountains of the base (1); the telescopic driving motor (21) is arranged in the center of the upper side surface of the base (1) and is used for driving four anti-toppling branches; the front part and the rear part of the left side surface and the right side surface of the base (1) are respectively provided with a roller notch (14), and the four roller notches (14) are communicated with the lower side surface of the base (1); two universal wheels (15) are respectively arranged on two roller wheel notches (14) on the front side; the two supporting rollers (16) are respectively arranged on the two roller notches (14) at the rear side;

a telescopic driving circuit electrically connected with the controller is arranged in the control box (34); the controller drives a telescopic driving motor (21) to rotate through a telescopic driving circuit; an extension key (39) and a contraction key (40) which are electrically connected with the controller are arranged on the outer wall of the control box (34); the power module (10) supplies power for the telescopic driving circuit.

9. The adaptable dining chair of claim 8, wherein: each anti-toppling branch comprises a telescopic square rod (11), a telescopic driving screw rod (59) and a driven bevel gear (60);

the front, the rear, the left and the right sides of the base (1) are provided with telescopic square holes (20); one ends of the four telescopic square rods (11) respectively penetrate through the four telescopic square holes (20) and extend into the mounting cavity, and the four telescopic square rods (11) are distributed in a cross shape; a ball seat (12) is arranged on the lower side surface of the other end of the telescopic square rod (11); a supporting ball (13) which is used for pressing the ground is arranged on the ball seat (12); the driving bevel gear (61) is arranged on the extending end of the output shaft of the telescopic driving motor (21); a telescopic threaded hole is coaxially arranged at the extending end of the telescopic square rod (11); the telescopic driving screw (59) is rotatably arranged in the mounting cavity; one end of the telescopic driving screw rod (59) is screwed on the telescopic threaded hole; a driven bevel gear (60) is installed on the other end of the telescopic driving screw (59), and a driving bevel gear (61) is simultaneously engaged with the four driven bevel gears (60).

10. The adaptable dining chair of claim 1, wherein: an arc push rod (17) is horizontally arranged on the rear side of the seat back plate (9) in a surrounding manner, and two ends of the arc push rod (17) are respectively fixed on the rear side surfaces of the two side handrails (8); an anti-skid sleeve (18) is arranged in the middle of the arc push rod (17).

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