CN111920597A - A multifunctional auxiliary standing chair - Google Patents

Abstract

The invention discloses a multifunctional auxiliary standing chair, comprising a base frame, anti-rollover mechanisms fixedly arranged on both sides of the base frame, and foot pedals fixedly arranged at the front end of the base frame, which are rotatably arranged The sit-to-stand conversion mechanism on the bottom frame, four electric push rods rotatably arranged between the sit-to-stand conversion mechanism and the bottom frame, are rotatably provided on the sit-stand conversion mechanism The armrest frame on the conversion mechanism, the seat back on the seat-to-stand conversion mechanism rotatably arranged, and the angle adjustment mechanism rotatably provided between the seat back and the sit-to-stand conversion mechanism, can A headrest that slides on the seat back. The auxiliary standing chair of the invention has a simple structure, can assist the elderly to move and complete the transition from sitting to standing, and improves the quality of life of the elderly.

Description

A multifunctional auxiliary standing chair

technical field

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

Background technique

Sitting to standing is a high-frequency repetitive action in daily life. Due to the reduction of joint motion range, ligament elasticity and muscle strength in the process of aging, many elderly people who have the ability to walk lack the ability to stand, which leads to their lack of ability to stand. Unable to complete the toilet independently, increasing the burden on nursing staff. In addition, for the elderly with lower limb disorders, lower limb rehabilitation training is also very important, which can effectively exercise the muscle strength of the lower limbs and delay the decline of lower limb function, thereby helping the elderly to restore their self-care ability and improve their quality of life.

At present, the application of assisted standing equipment basically meets the needs of the elderly from sitting to standing, but its movement mode is single, and its adaptability to the normal movement trajectory of the elderly is not high, and its adjustability is not strong. Therefore, to develop a safe and reliable device , High adaptability, good adjustability, multi-functional auxiliary standing chair is very necessary.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a multifunctional auxiliary standing chair for the technical defects existing in the prior art.

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

A multifunctional auxiliary standing chair, comprising a bottom frame, an anti-rollover mechanism, a foot pedal mechanism, a sitting-to-stand conversion mechanism, an electric push rod, an armrest frame, a seat back, an angle adjustment mechanism and a headrest. A rollover prevention mechanism is fixedly arranged, a foot pedal is fixedly arranged at the front end of the bottom frame, a sitting-to-stand conversion mechanism is rotatably arranged on the bottom frame, and the sitting-to-stand conversion mechanism is connected to the bottom frame. There are four electric push rods rotatably arranged between them, an armrest frame is rotatably provided on the sitting-to-stand conversion mechanism, a seat back is rotatably provided on the sitting-to-stand conversion mechanism, and the seat back An angle adjusting mechanism is rotatably provided with the sitting-stand converting mechanism, and a headrest is slidably provided on the seat back.

The bottom frame includes two longitudinal support rods, two longitudinal telescopic rods, two side support rods, a bottom frame cross rod and a universal carrier wheel, and the longitudinal telescopic rods are slidably arranged in the longitudinal direction. In the support rod, the longitudinal telescopic rod is provided with a plurality of threaded holes at equal intervals, the longitudinal support rod is provided with positioning screws, and the side support rod is fixedly arranged on the outside of the longitudinal support rod, The bottom frame cross bar is fixedly arranged between the longitudinal support rods, and the front end of the longitudinal support rod and the rear end of the longitudinal telescopic rod are fixedly provided with a brakeable universal carrier wheel.

The anti-rollover mechanism includes a connecting rod, an L-shaped outer tube and a roller, the L-shaped outer tube is slidably sleeved on the connecting rod, and the connecting rod is equidistantly provided with a plurality of A threaded hole, the L-shaped outer tube is provided with a positioning screw, and the roller is rotatably arranged at the bottom of the L-shaped outer tube.

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

The sitting-to-stand conversion mechanism includes a seat plate, two front rockers, two rear rockers and two rear links, the front end of the seat plate is rotatably connected with the upper end of the front rocker, and the The upper end of the rear link is rotatably arranged at the rear end of the seat plate, and the upper end of the rear rocker is rotatably connected with the lower end of the rear link.

The sitting-to-stand conversion mechanism and the chassis form a five-bar mechanism.

The armrest frame includes a first link, a second link, an armrest, a handle, a ratchet, a pawl, a spring, a rotating shaft and a rotary switch, and 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 of the armrest, the handle is fixedly arranged at the front end of the armrest, and the ratchet is fixedly arranged at the first link On the upper side, the pawl cooperates with the ratchet wheel, the spring is fixedly connected to the pawl, the rotating shaft is fixedly connected to the pawl, and the rotary switch is connected to the The shaft is fixedly connected.

The seat back includes a backboard, a first telescopic rod, a backboard frame and a push handle, the first telescopic rod is fixedly arranged behind the backboard, and the first telescopic rod is slidably arranged on the back of the backboard. In the back plate frame, the first telescopic rod is provided with a plurality of threaded holes equidistantly, the back plate frame is provided with positioning screws, and the push handle is fixedly arranged behind the back plate .

The angle adjustment mechanism includes a second telescopic rod and an outer tube, the second telescopic rod is slidably connected with the outer tube, and a plurality of threaded holes are arranged at equal intervals on the second telescopic rod, The outer tube is provided with a positioning screw.

The headrest includes a headrest block, a third telescopic rod and a collar, the collar is fixedly arranged on the back of the chair, and the third telescopic rod is slidably arranged in the collar The headrest block is fixedly arranged on the third telescopic rod, the third telescopic rod is provided with a plurality of threaded holes at equal intervals, and the collar is provided with positioning screws.

Compared with the prior art, the beneficial effects of the present invention are:

The multifunctional auxiliary standing chair of the present invention has the advantages of simple structure, coordinated movement, convenient operation, and can provide good assistance to users. for rehabilitation training. The retractable chassis increases the stability of the unit. The height-adjustable seat back can be used by people of different heights, and the angle adjustment mechanism increases the user experience. The height-adjustable headrest enhances the comfort of the unit. The armrest frame can not hinder the movement of the user while ensuring the safety of the user. The anti-rollover mechanism improves the safety of the device.

Description of drawings

Figure 1 shows the front side view of the multifunctional assisted standing chair;

Figure 2 shows the rear side view of the multifunctional auxiliary standing chair;

Figure 3 shows a schematic diagram of the chassis;

Figure 4 shows a schematic diagram of a sitting-to-stand conversion mechanism;

Figure 5 shows a schematic diagram of the armrest;

Figure 6 shows a schematic diagram of the back of the chair;

Figure 7 shows a schematic diagram of the assisted standing state;

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

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

As shown in FIGS. 1 and 2 , the multifunctional auxiliary standing chair of the present invention includes a base frame 1 , anti-rollover mechanisms 2 fixedly arranged on both sides of the base frame 1 , and an anti-rollover mechanism 2 fixedly arranged at the front end of the base frame 1 The foot pedal 3, the sitting-to-stand conversion mechanism 4 rotatably arranged on the base frame 1, the four electric motor The push rod 9, the armrest frame 5 rotatably arranged on the sitting-to-stand conversion mechanism 4, the seat back 6 rotatably arranged on the sitting-to-stand conversion mechanism 4, rotatably arranged on the The angle adjustment mechanism 7 between the seat back 6 and the sitting-stand converting mechanism 4 is slidably arranged on the headrest 8 on the seat back 6 .

The multifunctional auxiliary standing chair of the present invention can help the user to complete the transition from sitting to standing after sitting on the toilet. As shown in Figs. The rear link 42, the front rocker 43 and the rear rocker 44, the electric push rod 91 is rotatably arranged between the front rocker 43 and the side support rod 12, the electric push rod 91 is rotatably arranged between the front rocker 43 and the side support rod 12 The push rod 92 is rotatably disposed between the rear rocker 44 and the longitudinal support rod 11 . Specifically, as shown in Figures 1 and 7, adjust the feet of the universal wheel to fix the auxiliary standing chair above the toilet, and after the user finishes using the toilet, drive the electric push rod 91 and the electric push rod 92 to drive The sitting-stand converting mechanism 4 moves to help the user to complete the transition from sitting to standing, and the state of assisting the user to stand is shown in FIG. 7 .

Further, in order to improve the stability of the multifunctional auxiliary standing chair, the length of the base frame 1 of the multifunctional auxiliary standing chair of the present invention can be adjusted, as shown in FIG. The side support rod 12, the bottom frame cross rod 13, the longitudinal telescopic rod 14, the universal carrier wheel 15 and the positioning screw 16, the longitudinal telescopic rod 14 is slidably arranged in the longitudinal support rod 11, the The longitudinal telescopic rod 14 is provided with a plurality of threaded holes at equal intervals, and the longitudinal support rod 11 is provided with positioning screws 16 . First, loosen the positioning screw 16 , adjust the longitudinal telescopic rod 14 to a suitable threaded hole position, and then tighten the positioning screw 16 , and the longitudinal telescopic rod 16 is locked in the longitudinal support rod 11 .

Further, in order to improve the scope of application and satisfy people of different heights, the seat back 6 of the multifunctional auxiliary standing chair of the present invention can be adjusted in height, as shown in FIGS. 1, 2 and 6, the seat back 6 includes a back plate. 61. The push handle 62, the first telescopic rod 63, the back plate frame 64 and the positioning screw 65. After the first telescopic rod 63 is fixed on the back plate 61, the first telescopic rod 63 can slide The first telescopic rod 63 is provided with a plurality of threaded holes equidistantly, the back plate frame 64 is provided with positioning screws 65, and the push handle 62 It is fixedly arranged behind the back plate 61 . First, loosen the positioning screw 65, adjust the first telescopic rod 63 to a suitable threaded hole position, and then tighten the positioning screw 65, and the first telescopic rod 63 is locked in the backplane frame 64.

Further, in order to improve the user's experience of use, the seat back 6 of the multifunctional auxiliary standing chair of the present invention can be adjusted in angle. As shown in Figs. 2 and 6, the angle adjustment mechanism 7 includes a second telescopic rod 71, The outer tube 72 and the positioning screw 73, the second telescopic rod 71 is slidably connected with the outer tube 72, the second telescopic rod 71 is provided with a plurality of threaded holes at equal distances, the outer A set screw 73 is provided on the tube 72 . First, loosen the positioning screw 73 , adjust the second telescopic rod 71 to a suitable threaded hole position, and then tighten the positioning screw 73 , and the second telescopic rod 71 is locked in the outer tube 72 .

Further, in order to improve the comfort of the multifunctional assisting standing chair, the headrest 8 of the multifunctional assisting standing chair of the present invention can be adjusted in height. As shown in FIG. 6 , the headrest 8 includes a headrest block 81, a first Three telescopic rods 82 , a collar 83 and a positioning screw 84 . After the collar 83 is fixedly arranged on the back plate 61 , the third telescopic rod 82 is slidably arranged in the collar 83 , the headrest block 81 is fixedly arranged on the third telescopic rod 82, the third telescopic rod 82 is provided with a plurality of threaded holes at equal intervals, and the collar 83 is provided with positioning screws 84. First, loosen the positioning screw 84 , adjust the third telescopic rod 82 to a suitable threaded hole position, and then tighten the positioning screw 84 , and the third telescopic rod 82 is locked in the collar 83 .

Further, in order to improve the comfort and safety of the multifunctional auxiliary standing chair, the armrest frame 5 of the multifunctional auxiliary standing chair of the present invention can be rotated. As shown in FIG. 5 , the armrest frame 5 includes a first link 51 , the second link 52, the armrest 53, the handle 54, the ratchet 55, the pawl 56, the shaft 57, the rotary switch 58 and the spring 59, the middle of the armrest 53 is rotatably connected to the upper end of the first link 51 The upper end of the second link 52 is rotatably connected to the rear of the armrest 53, the handle 54 is fixedly arranged at the front end of the armrest 53, and the ratchet wheel 55 is fixedly arranged at the armrest 53. On the first connecting rod 51, the pawl 56 cooperates with the ratchet wheel 55, the spring 59 is fixedly connected to the pawl 56, the rotating shaft 57 and the pawl 56 Fixed connection, the rotary switch 58 is fixedly connected with the rotating shaft 57 . When the user sits on the auxiliary standing chair, his hands turn the rotary switch 58 upward, and the pawl 56 is disengaged from the meshing state under the drive of the rotating shaft 57. At this time, the armrest frame 5 can rotate freely, and the user can adjust the armrest 53 according to his own needs. Adjust to an appropriate position, then release the rotary switch 58, the pawl 56 returns to its original position under the action of the spring 59, at this time, the armrest 53 is locked, the user can support the body weight with the armrest 53 and the handle 54, and reduce the lower limbs Muscle burden.

Further, in order to improve the safety factor of the multi-functional auxiliary standing chair and prevent the multi-functional auxiliary standing chair from rolling over due to the unstable center of gravity during the process of sitting and standing conversion, the multi-functional auxiliary standing chair of the present invention is provided with an anti-rollover mechanism 2 . 1, 2, the anti-rollover mechanism 2 includes 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 On the connecting rod 21, the roller 23 is rotatably arranged at the bottom of the L-shaped outer tube 22, and the connecting rod 21 is provided with a plurality of threaded holes at equal distances. The L-shaped outer tube The positioning screw 24 is provided on the 22 . The width of the anti-rollover mechanism can be increased by matching the positioning screws 24 with different threaded holes, thereby improving the safety.

The multifunctional auxiliary standing chair of the present invention can complete the function of helping the user to move and perform rehabilitation training. The multi-functional assisted standing chair can move freely, and the nursing staff pushes the push handle 62 to move; when it is necessary to perform rehabilitation training, the user sits on the seat plate, puts both arms on the armrest 53, holds the handle 54 with both hands, and drives the electric The push rod 91 and the electric push rod 92 drive the sit-to-stand conversion mechanism 4 to move, so as to help the user to achieve lower limb rehabilitation training.

To sum up, the multifunctional auxiliary standing chair of the present invention has the advantages of simple structure, coordinated movement, convenient operation, and can provide good assistance to the user, and the sitting-to-stand conversion mechanism can enable the user to complete the transition from sitting to standing more smoothly. . The retractable bottom frame improves the stability of the device, the height-adjustable seat back can meet the use of people of different heights, the angle adjustment mechanism increases the user experience, and the height-adjustable headrest improves the comfort of the device, The armrest frame can not hinder the movement of the user while ensuring the safety of the user, and the anti-rollover mechanism improves the safety of the device.

The above are only the preferred embodiments of the present invention. It should be noted that, for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. These improvements and Retouching should also be regarded as the protection scope of the present invention.

Claims (10)

1. A multifunctional auxiliary standing chair, characterized in that it comprises a base frame, an anti-rollover mechanism, a footrest mechanism, a sitting-stand conversion mechanism, an electric push rod, an armrest frame, a chair back, an angle adjustment mechanism and a headrest, all of which are The bottom frame is fixedly provided with an anti-rollover mechanism on both sides, the front end of the bottom frame is fixedly provided with a foot pedal, and a sit-to-stand conversion mechanism is rotatably provided on the bottom frame. Four electric push rods are rotatably arranged between the base frame and the seat-stand conversion mechanism, an armrest frame is rotatably arranged on the sit-to-stand conversion mechanism, and a seat back is rotatably provided on the sit-to-stand conversion mechanism An angle adjusting mechanism is rotatably arranged between the seat back and the sitting-stand converting mechanism, and a headrest is slidably arranged on the seat back. 2. The multifunctional auxiliary standing chair according to claim 1, wherein the base frame comprises two longitudinal support rods, two longitudinal telescopic rods, two side support rods, a To the carrier wheel, the longitudinal telescopic rod is slidably arranged in the longitudinal support rod, the longitudinal telescopic rod is provided with a plurality of threaded holes at equal intervals, and the longitudinal support rod is provided with positioning screws , the side support rods are fixedly arranged on the outside of the longitudinal support rods, the chassis cross rods are fixedly arranged between the longitudinal support rods, the front end of the longitudinal support rods and the longitudinal support rods A brakeable universal load wheel is fixed under the rear end of the telescopic rod. 3. The multifunctional auxiliary standing chair according to claim 1, wherein the anti-rollover mechanism comprises a connecting rod, an L-shaped outer tube and a roller, and the connecting rod is fixedly arranged on the bottom frame On the above, the L-shaped outer tube is slidably sleeved on the connecting rod, the connecting rod is provided with a plurality of threaded holes at equal distances, and the L-shaped outer tube is provided with positioning screws, The roller is rotatably arranged at the bottom of the L-shaped outer tube. 4 . The multifunctional auxiliary standing chair according to claim 1 , wherein the foot pedal mechanism comprises a pedal and a fixing rod, and the pedal is rotatably connected with the fixing rod. 5 . 5. The multifunctional auxiliary standing chair according to claim 1, wherein the sitting-to-stand conversion mechanism comprises a seat plate, two front rockers, two rear rockers and two rear links, and the The front end of the seat plate is rotatably connected to the upper end of the front rocker, the upper end of the rear connecting rod is rotatably arranged at the rear end of the seat plate, and the upper end of the rear rocker is rotatably connected to the upper end of the rear rocker. The lower end of the rear connecting rod is connected. 6 . The multifunctional auxiliary standing chair according to claim 1 , wherein the sitting-to-stand conversion mechanism and the bottom frame form a five-bar mechanism. 7 . 7. The multifunctional auxiliary standing chair according to claim 1, wherein the armrest frame comprises a first link, a second link, an armrest, a handle, a ratchet, a pawl, a spring, a rotating shaft and a rotating The middle part of the armrest is rotatably connected to the upper end of the first connecting rod, the upper end of the second connecting rod is rotatably connected to the rear part of the armrest, and the handle is fixedly arranged on the The front end of the armrest, the ratchet wheel is fixedly arranged on the first link, the ratchet pawl cooperates with the ratchet wheel, the spring is fixedly connected to the ratchet pawl, and the The rotating shaft is fixedly connected with the pawl, and the rotating switch is fixedly connected with the rotating shaft. 8 . The multifunctional auxiliary standing chair according to claim 1 , wherein the chair back comprises a back plate, a first telescopic rod, a back plate frame and a push handle, and the first telescopic rod is fixedly arranged on the After the back plate, the first telescopic rod is slidably arranged in the back plate frame, and the first telescopic rod is provided with a plurality of threaded holes at equal intervals, and the back plate frame A positioning screw is arranged on the upper part, and the push handle is fixedly arranged behind the back plate. 9 . The multifunctional auxiliary standing chair according to claim 1 , wherein the angle adjustment mechanism comprises a second telescopic rod and an outer tube, and the second telescopic rod and the outer tube are slidable. 10 . For connection, the second telescopic rod is provided with a plurality of threaded holes equidistantly, and the outer pipe is provided with positioning screws. 10. The multifunctional auxiliary standing chair according to claim 1, wherein the headrest comprises a headrest block, a third telescopic rod and a collar, and the collar is fixedly arranged on the back of the chair , the third telescopic rod is slidably arranged in the collar, the headrest block is fixedly arranged on the third telescopic rod, and the third telescopic rod is equidistantly provided with There are a plurality of threaded holes, and the collar is provided with a positioning screw.

Images