CN111920597A

CN111920597A - Multifunctional standing assisting chair

Info

Publication number: CN111920597A
Application number: CN202010919838.6A
Authority: CN
Inventors: 薛强; 韩小龙; 张守威
Original assignee: Tianjin University of Science and Technology
Current assignee: Tianjin University of Science and Technology
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2020-11-13

Abstract

The invention discloses a multifunctional auxiliary standing chair which comprises a bottom frame, anti-rollover mechanisms fixedly arranged on two sides of the bottom frame, pedals fixedly arranged at the front end of the bottom frame, a sitting and standing conversion mechanism rotatably arranged on the bottom frame, four electric push rods rotatably arranged between the sitting and standing conversion mechanism and the bottom frame, an armrest frame rotatably arranged on the sitting and standing conversion mechanism, a chair back rotatably arranged on the sitting and standing conversion mechanism, an angle adjusting mechanism rotatably arranged between the chair back and the sitting and standing conversion mechanism, and a headrest slidably arranged on the chair back. The standing assisting chair is simple in structure, can assist the old to move and complete the conversion from sitting to standing, and improves the life quality of the old.

Description

Multifunctional standing assisting chair

Technical Field

The invention relates to the technical field of rehabilitation instruments, in particular to a multifunctional auxiliary standing chair.

Background

The people who sit and stand frequently repeat actions in daily life, and as the phenomena of reduced joint motion amplitude, lowered ligament elasticity, lowered muscle strength and the like exist in the aging process of people, many old people with walking ability lack the standing ability, so that the old people cannot finish toilet independently, and the burden of nursing staff is increased. In addition, for the old with lower limb disorder, the lower limb rehabilitation training is also very important, the muscle strength of the lower limbs can be effectively exercised, and the function decline of the lower limbs is delayed, so that the old is helped to recover the self-care ability of life, and the life quality is improved.

At present, the auxiliary standing device basically meets the requirements of old people from sitting to standing in application, but the movement mode is single, the adaptability of the movement track of the old people under the normal condition is not high, and the adjustability is not strong, so that the development of a multifunctional auxiliary standing chair which is safe, reliable, high in adaptability and good in adjustability is very necessary.

Disclosure of Invention

The invention aims to provide a multifunctional auxiliary standing chair aiming at the technical defects in the prior art.

The technical scheme adopted for realizing the purpose of the invention is as follows:

the utility model provides a multi-functional supplementary chair of standing, includes the chassis, prevents side turning mechanism, pedal mechanism, sits and found shifter, electric putter, handrail frame, the back of the chair, angle adjustment mechanism and headrest, the fixed mechanism that prevents side turning that is provided with in chassis both sides, the chassis front end fixed be provided with the running-board, the chassis on rotationally be provided with sit and found the shifter, sit stand the shifter with the chassis between rotationally be provided with four electric putter, sit and stand the shifter on rotationally be provided with handrail frame, sit and stand the shifter on rotationally be provided with the back of the chair, the back of the chair with sit and found the shifter between rotationally be provided with angle adjustment mechanism, the back of the chair on the slidable be provided with the headrest.

The chassis include two longitudinal support pole, two longitudinal extension pole, two side support poles, chassis horizontal pole and universal year wheel, longitudinal extension pole slidable ground set up longitudinal support pole in, longitudinal extension pole on equidistantly be provided with a plurality of screw holes, longitudinal support pole on be provided with set screw, the side support pole fixed set up the longitudinal support pole outside, the chassis horizontal pole fixed set up longitudinal support pole between, longitudinal support pole front end with the longitudinal extension pole rear end under the fixed universal year wheel that can brake that is provided with.

The anti-rollover mechanism comprises a connecting rod, an L-shaped outer tube and a roller, the L-shaped outer tube is slidably sleeved on the connecting rod, a plurality of threaded holes are formed in the connecting rod at equal intervals, a positioning screw is arranged on the L-shaped outer tube, and the roller is rotatably arranged at the bottom of the L-shaped outer tube.

The pedal mechanism comprises a pedal and a fixed rod, and the pedal is rotatably connected with the fixed rod.

The sitting and standing conversion mechanism comprises a seat plate, two front rocking bars, two rear rocking bars and two rear connecting rods, wherein the front end of the seat plate is rotatably connected with the upper ends of the front rocking bars, the upper ends of the rear connecting rods are rotatably arranged at the rear ends of the seat plate, and the upper ends of the rear rocking bars are rotatably connected with the lower ends of the rear connecting rods.

The sitting and standing conversion mechanism and the bottom frame form a five-rod mechanism.

The handrail frame include first connecting rod, second connecting rod, handrail, handle, ratchet, pawl, spring, pivot and rotary switch, handrail middle part rotationally with first connecting rod upper end connect, second connecting rod upper end rotationally with the handrail rear portion connect, the handle fixed set up the handrail front end, the ratchet fixed set up first connecting rod on, the pawl with the ratchet cooperation, spring fixed connection in the pawl on, the pivot with pawl fixed connection, rotary switch with pivot fixed connection.

The back of the chair include backplate, first telescopic link, backplate frame and push away the handle, first telescopic link fixed set up the backplate after, first telescopic link slidable ground set up the backplate frame in, first telescopic link on equidistantly be provided with a plurality of screw holes, the backplate frame on be provided with set screw, the push away the fixed setting of handle be in behind the backplate.

The angle adjusting mechanism comprises a second telescopic rod and an outer tube, the second telescopic rod is connected with the outer tube in a sliding mode, a plurality of threaded holes are formed in the second telescopic rod at equal intervals, and positioning screws are arranged on the outer tube.

The headrest include headrest piece, third telescopic link and the lantern ring, the lantern ring fixed set up the chair back behind, third telescopic link slidable ground set up the lantern ring in, the headrest piece fixed set up the third telescopic link on, the third telescopic link on the equidistance be provided with a plurality of screw holes, the lantern ring on be provided with set screw.

Compared with the prior art, the invention has the beneficial effects that:

the multifunctional auxiliary standing chair has the advantages of simple structure, coordinated movement and convenient operation, can provide good assistance for a user, enables the user to more smoothly complete the conversion from sitting to standing through the sitting and standing conversion mechanism, and can enable the user to carry out rehabilitation training. The telescopic chassis improves the stability of the device. The chair back with adjustable height can satisfy the crowd of different heights to use, and angle adjustment mechanism has increased user experience. The height-adjustable headrest improves the comfort of the device. The armrest frame can ensure the safety of the user and simultaneously does not obstruct the movement of the user. The anti-rollover mechanism improves the safety of the device.

Drawings

FIG. 1 shows a front side view of a multi-function standing assist chair;

FIG. 2 illustrates a rear side view of the multi-function standing assist chair;

FIG. 3 is a schematic view of a chassis;

FIG. 4 is a schematic view of a sitting and standing conversion mechanism;

FIG. 5 is a schematic view of the armrest frame;

FIG. 6 is a schematic view of a chair back;

FIG. 7 is a schematic view of the assisted stance state;

fig. 8 is a schematic diagram showing the state of assisting movement and performing rehabilitation training.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, the multifunctional auxiliary standing chair of the present invention includes a base frame 1, rollover prevention mechanisms 2 fixedly provided on both sides of the base frame 1, a footrest 3 fixedly provided at a front end of the base frame 1, a sitting/standing conversion mechanism 4 rotatably provided on the base frame 1, four electric push rods 9 rotatably provided between the sitting/standing conversion mechanism 4 and the base frame 1, an armrest frame 5 rotatably provided on the sitting/standing conversion mechanism 4, a seat back 6 rotatably provided on the sitting/standing conversion mechanism 4, an angle adjustment mechanism 7 rotatably provided between the seat back 6 and the sitting/standing conversion mechanism 4, and a headrest 8 slidably provided on the seat back 6.

The multifunctional standing-assisting chair of the invention can help a user to complete the conversion from sitting to standing after defecating, as shown in fig. 1, 2, 3, 4 and 7, the sitting conversion mechanism 4 comprises a seat plate 41, a rear connecting rod 42, a front rocker 43 and a rear rocker 44, the electric push rod 91 is rotatably arranged between the front rocker 43 and the side supporting rod 12, and the electric push rod 92 is rotatably arranged between the rear rocker 44 and the longitudinal supporting rod 11. Specifically, as shown in fig. 1 and 7, the feet of the universal carrier wheels are adjusted to fix the standing-assisting chair above the toilet, after the user finishes using the toilet, the electric push rod 91 and the electric push rod 92 are driven to drive the standing-sitting conversion mechanism 4 to move, so that the user is helped to complete the conversion from sitting to standing, and the standing state of the user is assisted as shown in fig. 7.

Further, in order to improve the stability of the multifunctional standing-assisting chair, the length of the underframe 1 of the multifunctional standing-assisting chair can be adjusted, as shown in fig. 3, the underframe 1 comprises a longitudinal support bar 11, a lateral support bar 12, an underframe cross bar 13, a longitudinal telescopic bar 14, a universal carrier wheel 15 and a positioning screw 16, the longitudinal telescopic bar 14 is slidably arranged in the longitudinal support bar 11, the longitudinal telescopic bar 14 is provided with a plurality of threaded holes at equal intervals, and the longitudinal support bar 11 is provided with the positioning screw 16. The set screw 16 is first loosened, the longitudinal extension rod 14 is adjusted to the proper threaded position, and then the set screw 16 is tightened, so that the longitudinal extension rod 16 is locked in the longitudinal support rod 11.

Further, in order to improve the application range and meet the requirements of people with different heights, the chair back 6 of the multifunctional standing-assisting chair of the invention can be adjusted in height, as shown in fig. 1, 2 and 6, the chair back 6 comprises a back plate 61, a push handle 62, a first telescopic rod 63, a back plate frame 64 and a positioning screw 65, the first telescopic rod 63 is fixedly arranged behind the back plate 61, the first telescopic rod 63 is slidably arranged in the back plate frame 64, the first telescopic rod 63 is equidistantly provided with a plurality of threaded holes, the back plate frame 64 is provided with the positioning screw 65, and the push handle 62 is fixedly arranged behind the back plate 61. First, the positioning screw 65 is loosened, the first telescopic rod 63 is adjusted to a proper threaded hole position, and then the positioning screw 65 is tightened, so that the first telescopic rod 63 is locked in the backboard bracket 64.

Further, in order to improve the use feeling of the user, the chair back 6 of the multifunctional standing-assisting chair of the present invention can be angularly adjusted, as shown in fig. 2 and 6, the angular adjustment mechanism 7 includes a second telescopic rod 71, an outer tube 72 and a positioning screw 73, the second telescopic rod 71 is slidably connected with the outer tube 72, the second telescopic rod 71 is equidistantly provided with a plurality of threaded holes, and the outer tube 72 is provided with the positioning screw 73. The set screw 73 is first loosened, the second telescoping rod 71 is adjusted to the appropriate threaded position, and then the set screw 73 is tightened, and the second telescoping rod 71 is locked within the outer tube 72.

Further, in order to improve the comfort of the multifunctional standing-assisting chair, the headrest 8 of the multifunctional standing-assisting chair of the present invention can be adjusted in height, as shown in fig. 6, the headrest 8 includes a headrest block 81, a third telescopic rod 82, a collar 83 and a positioning screw 84, the collar 83 is fixedly disposed behind the back plate 61, the third telescopic rod 82 is slidably disposed in the collar 83, the headrest block 81 is fixedly disposed on the third telescopic rod 82, the third telescopic rod 82 is equidistantly provided with a plurality of threaded holes, and the collar 83 is provided with the positioning screw 84. The set screw 84 is first loosened, the third telescoping rod 82 is adjusted to the appropriate threaded position, and the set screw 84 is tightened, thereby locking the third telescoping rod 82 within the collar 83.

Further, in order to improve the comfort and safety of the multifunctional standing-assisting chair, the armrest frame 5 of the multifunctional standing-assisting chair of the invention can rotate, as shown in fig. 5, the armrest frame 5 comprises a first connecting rod 51, a second connecting rod 52, an armrest 53, a grip 54, a ratchet 55, a pawl 56, a rotating shaft 57, a rotating switch 58 and a spring 59, the middle part of the armrest 53 is rotatably connected with the upper end of the first connecting rod 51, the upper end of the second connecting rod 52 is rotatably connected with the rear part of the armrest 53, the grip 54 is fixedly arranged at the front end of the armrest 53, the ratchet wheel 55 is fixedly arranged on the first connecting rod 51, the pawl 56 is matched with the ratchet wheel 55, the spring 59 is fixedly connected on the pawl 56, the rotating shaft 57 is fixedly connected with the pawl 56, and the rotating switch 58 is fixedly connected with the rotating shaft 57. The user sits and stirs rotary switch 58 upwards with both hands when assisting the chair of standing, and pawl 56 breaks away from the engaged state under the drive of pivot 57, and at this moment, but handrail frame 5 free rotation, the user can adjust suitable position with handrail 53 according to the demand of oneself, then loosens rotary switch 58, and pawl 56 resumes the normal position under the effect of spring 59, and at this moment, handrail 53 is locked, and the user can support body weight with the help of handrail 53 and handle 54, alleviates low limbs muscle burden.

Further, in order to improve the safety factor of the multifunctional auxiliary standing chair and prevent the multifunctional auxiliary standing chair from side turning due to unstable gravity center in the process of sitting and standing conversion, the multifunctional auxiliary standing chair is provided with a side turning prevention mechanism 2, as shown in fig. 1 and 2, the side turning prevention mechanism 2 comprises a connecting rod 21, an L-shaped outer tube 22, a roller 23 and a positioning screw 24; the L-shaped outer tube 22 is slidably sleeved on the connecting rod 21, the roller 23 is rotatably arranged at the bottom of the L-shaped outer tube 22, the connecting rod 21 is equidistantly provided with a plurality of threaded holes, and the L-shaped outer tube 22 is provided with the positioning screws 24. The width of the anti-rollover mechanism can be increased by matching the positioning screws 24 with different threaded holes, so that the safety is improved.

The multifunctional auxiliary standing chair can complete the functions of helping a user to move and perform rehabilitation training, as shown in fig. 8, particularly, a seat plate 41 is replaced by a common seat plate, the feet of universal carrier wheels are adjusted, so that the multifunctional auxiliary standing chair can move freely, and a nursing worker pushes a push handle 62 to move; when rehabilitation training is needed, a user sits on the seat board, puts two arms on the handrails 53, holds the grip 54 with two hands, drives the electric push rod 91 and the electric push rod 92 to drive the sitting and standing conversion mechanism 4 to move, and helps the user to realize lower limb rehabilitation training.

In conclusion, the multifunctional auxiliary standing chair has the advantages of simple structure, coordinated movement and convenient operation, can provide good assistance for a user, and enables the user to more smoothly complete the conversion from sitting to standing through the sitting and standing conversion mechanism. The telescopic chassis has improved the stability of device, but height-adjusting's the back of the chair can satisfy the crowd use of different heights, and angle adjustment mechanism has increased user experience, but height-adjusting's headrest has improved the travelling comfort of device, but handrail frame can guarantee that the user is safe while not hinder user's removal, prevents that side turning over mechanism has improved the security of device.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a multi-functional supplementary chair of standing, its characterized in that includes the chassis, prevents side turning mechanism, pedal mechanism, sits and stands shifter, electric putter, handrail frame, the back of the chair, angle adjustment mechanism and headrest, the fixed side turning mechanism that prevents that is provided with in chassis both sides, the chassis front end fixed be provided with the running-board, the chassis on rotationally be provided with sit and stand the shifter, sit stand the shifter with the chassis between rotationally be provided with four electric putter, sit stand the shifter on rotationally be provided with handrail frame, sit stand the shifter on rotationally be provided with the back of the chair, the back of the chair with sit stand the shifter between rotationally be provided with angle adjustment mechanism, the back of the chair on be provided with the headrest slidable.

2. The multifunctional standing-assisting chair as claimed in claim 1, wherein the bottom frame comprises two longitudinal support rods, two longitudinal telescopic rods, two side support rods, a bottom frame cross rod and universal carrier wheels, the longitudinal telescopic rods are slidably disposed in the longitudinal support rods, a plurality of threaded holes are equidistantly formed in the longitudinal telescopic rods, positioning screws are disposed on the longitudinal support rods, the side support rods are fixedly disposed on the outer sides of the longitudinal support rods, the bottom frame cross rod is fixedly disposed between the longitudinal support rods, and the front ends of the longitudinal support rods and the rear ends of the longitudinal telescopic rods are fixedly provided with the universal carrier wheels capable of braking.

3. The multifunctional auxiliary standing chair as claimed in claim 1, wherein the anti-rollover mechanism comprises a connecting rod, an L-shaped outer tube and a roller, the connecting rod is fixedly arranged on the bottom frame, the L-shaped outer tube is slidably sleeved on the connecting rod, the connecting rod is equidistantly provided with a plurality of threaded holes, the L-shaped outer tube is provided with a set screw, and the roller is rotatably arranged at the bottom of the L-shaped outer tube.

4. The multifunctional assisted standing chair of claim 1, wherein the pedal mechanism comprises a pedal and a fixed rod, the pedal being rotatably connected to the fixed rod.

5. The multifunctional standing-assistance chair as claimed in claim 1, wherein the sitting-standing conversion mechanism comprises a seat plate, two front rockers, two rear rockers and two rear links, wherein the front end of the seat plate is rotatably connected to the upper ends of the front rockers, the upper ends of the rear links are rotatably disposed at the rear end of the seat plate, and the upper ends of the rear rockers are rotatably connected to the lower ends of the rear links.

6. The multifunctional assisted standing chair of claim 1 wherein the seat conversion mechanism and the base frame comprise a five bar mechanism.

7. The multifunctional standing-assisting chair as claimed in claim 1, wherein the armrest frame comprises a first link, a second link, an armrest, a grip, a ratchet, a pawl, a spring, a shaft and a rotary switch, wherein the middle part of the armrest is rotatably connected to the upper end of the first link, the upper end of the second link is rotatably connected to the rear part of the armrest, the grip is fixedly disposed at the front end of the armrest, the ratchet is fixedly disposed on the first link, the pawl is engaged with the ratchet, the spring is fixedly connected to the pawl, the shaft is fixedly connected to the pawl, and the rotary switch is fixedly connected to the shaft.

8. The multifunctional auxiliary standing chair as claimed in claim 1, wherein the chair back comprises a back plate, a first telescopic rod, a back plate frame and a push handle, the first telescopic rod is fixedly arranged behind the back plate, the first telescopic rod is slidably arranged in the back plate frame, the first telescopic rod is equidistantly provided with a plurality of threaded holes, the back plate frame is provided with positioning screws, and the push handle is fixedly arranged behind the back plate.

9. The multifunctional standing-assistance chair as claimed in claim 1, wherein the angle adjustment mechanism comprises a second telescopic rod and an outer tube, the second telescopic rod is slidably connected with the outer tube, the second telescopic rod is provided with a plurality of threaded holes at equal intervals, and the outer tube is provided with a set screw.

10. The multifunctional auxiliary standing chair as claimed in claim 1, wherein the headrest comprises a headrest block, a third telescopic rod and a collar, the collar is fixedly disposed at the back of the chair, the third telescopic rod is slidably disposed in the collar, the headrest block is fixedly disposed on the third telescopic rod, the third telescopic rod is equidistantly provided with a plurality of threaded holes, and the collar is provided with a set screw.