阅读说明：本技术 辅助老人起卧床 (Bed for assisting old people to get up and lie down ) 是由 陈俞飞 徐嘉润 黄文泰 黄佳燕 杜习之 张毫杰 于 2020-05-29 设计创作，主要内容包括：辅助老人起卧床,包括背部抬升机构,包括底座、背板起升部以及背板；扶手联动升降机构,设置于背部抬升机构的前部,包括坐板、扶手联动装置和扶手,坐板后部与背板的前部铰接,坐板的两侧各设有一滑槽；扶手联动装置包括滑动部和起升部,滑动部的顶部安装扶手,底部插入滑槽内；起升部的前端固装在腿板下放机构的后部,后端向上翘起形成顶起端；腿板下放机构,设置在扶手联动升降机构的前部,包括腿板、多级传动连杆组件、气弹簧和水平推动装置；以及控制机构,包括控制器和人机交互装置。本发明的有益效果是：利用模块化床板、多个连杆机构,通过步进电机驱动,实现整体从背板、腿板到扶手一体化联动。(The bed for assisting the old to get up comprises a back lifting mechanism, a bed frame and a bed frame, wherein the back lifting mechanism comprises a base, a back plate lifting part and a back plate; the armrest linkage lifting mechanism is arranged at the front part of the back lifting mechanism and comprises a seat plate, an armrest linkage device and armrests, the rear part of the seat plate is hinged with the front part of the back plate, and two sliding chutes are respectively arranged at two sides of the seat plate; the handrail linkage device comprises a sliding part and a lifting part, the top of the sliding part is provided with a handrail, and the bottom of the sliding part is inserted into the sliding groove; the front end of the lifting part is fixedly arranged at the rear part of the leg plate lowering mechanism, and the rear end of the lifting part is tilted upwards to form a jacking end; the leg plate lowering mechanism is arranged at the front part of the handrail linkage lifting mechanism and comprises a leg plate, a multi-stage transmission connecting rod assembly, an air spring and a horizontal pushing device; and the control mechanism comprises a controller and a human-computer interaction device. The invention has the beneficial effects that: the modularized bed board and the plurality of connecting rod mechanisms are driven by the stepping motor, so that the integral linkage from the back board, the leg board to the handrail is realized.)

1. Supplementary old man gets up bed, its characterized in that includes:

the back lifting mechanism comprises a base, a back plate lifting part and a back plate, wherein the upper part of the base is provided with a mounting plane with a high front part and a low back part, and the mounting plane is used for mounting the back plate lifting part; the backboard lifting part is arranged on the mounting surface of the base, and the lifting end of the backboard lifting part is connected with the bottom of the backboard and used for driving the rear part of the backboard to lift; the back plate is arranged at the upper lifting end of the back plate lifting part and used for lifting the back of a user to enable the user to synchronously lift;

the armrest linkage lifting mechanism is arranged at the front part of the back lifting mechanism and comprises a seat plate, an armrest linkage device and armrests, the rear part of the seat plate is hinged with the front part of the back plate, and two sliding grooves are respectively arranged at two sides of the seat plate and used for accommodating the armrests; the handrail linkage device comprises a sliding part and a lifting part, the top of the sliding part is provided with a handrail, and the bottom of the sliding part is inserted into the sliding groove and is in sliding fit with the sliding groove; the front end of the lifting part is fixedly arranged at the rear part of the leg plate lowering mechanism, and the rear end of the lifting part is tilted upwards to form a jacking end for jacking the handrail to turn upwards;

the leg plate lowering mechanism is arranged at the front part of the handrail linkage lifting mechanism and comprises a leg plate, a multi-stage transmission connecting rod assembly, an air spring and a horizontal pushing device, and the rear part of the leg plate is hinged with the front part of the seat plate; the upper end of the multistage transmission connecting rod assembly is hinged with the bottom of the leg plate, and the lower end of the multistage transmission connecting rod assembly is connected with the pushing end of the horizontal pushing device in a sliding mode and used for putting down or lifting the leg plate; the rear end of the horizontal pushing device is hinged with the lower movable end of the back plate lifting part, and the front end of the horizontal pushing device is used as a pushing end and hinged with the lower end of the multistage transmission connecting rod assembly and used for lowering the leg plate; the horizontal movable end of the gas spring is hinged with the lower end of the multistage transmission connecting rod assembly and is used for automatically realizing the leveling of the leg plate;

the signal output end of the controller is electrically connected with the signal input end of the back plate lifting part through a control circuit, and the signal input end of the controller is in signal or electric connection with the signal output end of the human-computer interaction device and is used for controlling the movement of the back lifting mechanism and the leg plate lowering mechanism; and the control circuit is provided with a power switch.

2. The elderly assisted bed of claim 1, wherein: the backboard lifting part comprises a backboard stepping motor, a screw nut pair, a linear guide rail, a sliding connecting rod and a herringbone connecting rod, the backboard stepping motor is arranged in the front of the mounting plane of the base, and the output end of the backboard stepping motor is connected with the front end of a screw of the screw nut pair and used for driving a screw of the screw nut pair to rotate; the screw rod and nut pair comprises a screw rod, a nut and a supporting bearing, the screw rod and two end parts of the optical axis are respectively arranged on the surface of the mounting plane through corresponding supporting bearing frames, the front end of the screw rod is connected with the output end of the backboard stepping motor, the nut is sleeved outside the screw rod and is in threaded connection with the screw rod, so that the nut moves axially along the screw rod when the screw rod rotates around a self central shaft; the linear guide rail comprises an optical axis, a linear bearing and an optical axis supporting seat, the linear bearing freely moves along the axial direction of the optical axis, and the optical axis is supported on the mounting plane by the optical axis supporting seat; the sliding connecting rod is perpendicular to the screw rod, two ends of the sliding connecting rod are sleeved on the optical axis and fixedly connected with a linear bearing with a flange on the optical axis, and the middle part of the sliding connecting rod is fixedly connected with a nut on the screw rod and used for realizing synchronous movement of the screw rod nut and the linear bearing on the optical axis; the herringbone connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod, the bottom end of the first connecting rod is hinged to the sliding connecting rod, and the upper end of the first connecting rod is hinged to the other two connecting rods through joint joints; the bottom end of the second connecting rod is hinged to the front part of the base, and the upper end of the second connecting rod is hinged to the upper end of the first connecting rod and the bottom end of the third connecting rod; the bottom end of the third connecting rod is hinged with the other two connecting rods, and the upper end of the third connecting rod is hinged with the back plate through a joint bearing, so that the upper end of the third connecting rod supports the back plate to lift or descend in the moving process of the first connecting rod along with the sliding connecting rod, and when the nut of the screw-nut pair moves to the rear end of the screw rod, the back plate and the seat plate are positioned on the same horizontal plane.

3. The elderly assisted bed of claim 2, wherein: the back plate comprises a main back plate and two side back plates, wherein two sides of the main back plate are respectively hinged with one side back plate, and the front end of the main back plate is hinged with the rear end of the seat plate.

4. The elderly assisted bed of claim 3, wherein: the two sets of herringbone connecting rods are arranged, the lower ends of the two sets of herringbone connecting rods are symmetrically hinged to the two ends of the sliding connecting rod respectively, and the upper ends of the herringbone connecting rods are hinged to the bottoms of the side back plates on the same side through corresponding joint bearings respectively.

5. The elderly assisted bed of claim 1, wherein: the handrail linkage device comprises two sets of handrail linkage devices, the sliding part comprises at least one pair of first sliding rods, the same pair of first sliding rods are arranged oppositely, and gaps are directly reserved between the two first sliding rods and used for the lifting part to pass through; the upper end of the first sliding rod is provided with a handrail, and the lower part of the first sliding rod is inserted into the sliding groove of the seat plate and is in sliding fit with the sliding groove; the lifting part comprises a first push rod and a roller, the first push rod is of an ivory structure, the front end of the first push rod is hinged to the bottom of the leg plate, the rear end of the first push rod upwards tilts to form a pushing end for pushing the handrail, the roller used for reducing friction force between the first push rod and the handrail is installed at the rear end of the first push rod, when the seat plate and the leg plate are located on the same horizontal plane, the roller of the pushing end of the first push rod is not in contact with the handrail, and when the leg plate is placed down, the roller is in contact with the handrail and pushes the handrail to lift from the sliding groove of the seat plate.

6. The elderly assisted bed of claim 1, wherein: the multistage transmission connecting rod assembly comprises a first leg plate connecting rod, a long pin shaft and a second leg plate connecting rod, wherein the upper end of the first leg plate connecting rod is hinged with the bottom of the leg plate, and the lower end of the first leg plate connecting rod is hinged with the long pin shaft; two ends of the long pin shaft are respectively hinged with a second leg plate connecting rod, the corner of the second leg plate connecting rod is hinged with the fixed hinge support, and the lower end of the second leg plate connecting rod is respectively connected with the horizontal movable end of the gas spring and the front end of the horizontal pushing device in a sliding manner; the movement direction of the front end of the horizontal pushing device and the movement direction of the horizontal movable end of the gas spring are opposite or reverse.

7. The elderly assisted bed of claim 6, wherein: the horizontal pushing device comprises a second push rod, a push rod fixing sleeve, a sliding sleeve, a third push rod and a joint, wherein the rear end of the second push rod is vertical, and the sliding sleeve is sleeved outside the second push rod; the sliding sleeve is hinged with the sliding connecting rod; the front end of the second push rod is inserted into the push rod sleeve, and the front end of the second push rod and the push rod sleeve form a sliding pair, so that the second push rod axially extends and retracts along the push rod sleeve, and the sliding sleeve vertically ascends and descends along the second push rod in the extension and retraction process of the second push rod; the rear end of the third push rod is inserted into the push rod fixing sleeve and is in sliding connection with the push rod fixing sleeve, the front end of the third push rod horizontally slides in a sliding groove at the lower end of the second leg plate connecting rod, and the third push rod and the gas spring are coaxial.

8. The elderly assisted bed of claim 6, wherein: the sum of the maximum length of the second push rod inserted into the push rod sleeve and the maximum length of the third push rod inserted into the push rod fixing sleeve is greater than the total length of the push rod fixing sleeve, so that the leg plate lags behind the back plate to move.

9. The elderly assisted bed of claim 4, wherein: the first connecting rod and the third connecting rod are straight lines when the backboard is horizontally placed, and the second connecting rod and the third connecting rod are straight lines when the backboard is completely lifted, so that the backboard and the backboard are self-locked respectively when two states are formed.

Technical Field

The invention relates to a bed for assisting the old to get up.

Background

Getting up is a very easy and simple matter for the normal population. With the aggravation of aging of the society, the old people in the society are more and more, the old people have certain difficulty in getting up after sleeping and waking up, for example, the problems of dizziness caused by muscle weakness for supporting the getting up action and reduction of cerebral blood pressure in the getting up process, and the like, so that the special people are difficult to get up alone, and even have certain danger in getting up alone. Therefore, there is a great need for tools to assist the special population to safely complete the waking up action.

Disclosure of Invention

In order to solve the problems, the invention provides a bed-rising assisting device for assisting the old to rise and lie in bed, which can assist a user to rise and is safe and convenient.

The invention relates to a bed for assisting the old to get up, which is characterized by comprising:

the back lifting mechanism comprises a base, a back plate lifting part and a back plate, wherein the upper part of the base is provided with a mounting plane with a high front part and a low back part, and the mounting plane is used for mounting the back plate lifting part; the backboard lifting part is arranged on the mounting surface of the base, and the lifting end of the backboard lifting part is connected with the bottom of the backboard and used for driving the rear part of the backboard to lift; the back plate is arranged at the upper lifting end of the back plate lifting part and used for lifting the back of a user to enable the user to synchronously lift;

the armrest linkage lifting mechanism is arranged at the front part of the back lifting mechanism and comprises a seat plate, an armrest linkage device and armrests, the rear part of the seat plate is hinged with the front part of the back plate, and two sliding grooves are respectively arranged at two sides of the seat plate and used for accommodating the armrests; the handrail linkage device comprises a sliding part and a lifting part, the top of the sliding part is provided with a handrail, and the bottom of the sliding part is inserted into the sliding groove and is in sliding fit with the sliding groove; the front end of the lifting part is fixedly arranged at the rear part of the leg plate lowering mechanism, and the rear end of the lifting part is tilted upwards to form a jacking end for jacking the handrail to turn upwards;

the leg plate lowering mechanism is arranged at the front part of the handrail linkage lifting mechanism and comprises a leg plate, a multi-stage transmission connecting rod assembly, an air spring and a horizontal pushing device, and the rear part of the leg plate is hinged with the front part of the seat plate; the upper end of the multistage transmission connecting rod assembly is hinged with the bottom of the leg plate, and the lower end of the multistage transmission connecting rod assembly is connected with the pushing end of the horizontal pushing device in a sliding mode and used for putting down or lifting the leg plate; the rear end of the horizontal pushing device is hinged with the lower movable end of the back plate lifting part, and the front end of the horizontal pushing device is used as a pushing end and hinged with the lower end of the multistage transmission connecting rod assembly and used for lowering the leg plate; the horizontal movable end of the gas spring is hinged with the lower end of the multistage transmission connecting rod assembly and is used for automatically realizing the leveling of the leg plate;

the signal output end of the controller is electrically connected with the signal input end of the back plate lifting part through a control circuit, and the signal input end of the controller is in signal or electric connection with the signal output end of the human-computer interaction device and is used for controlling the movement of the back lifting mechanism and the leg plate lowering mechanism; and the control circuit is provided with a power switch.

The backboard lifting part comprises a backboard stepping motor, a screw nut pair, a linear guide rail, a sliding connecting rod and a herringbone connecting rod, the backboard stepping motor is arranged in the front of the mounting plane of the base, and the output end of the backboard stepping motor is connected with the front end of a screw of the screw nut pair and used for driving a screw of the screw nut pair to rotate; the screw rod and nut pair comprises a screw rod, a nut and a supporting bearing, the screw rod and two end parts of the optical axis are respectively arranged on the surface of the mounting plane through corresponding supporting bearing frames, the front end of the screw rod is connected with the output end of the backboard stepping motor, the nut is sleeved outside the screw rod and is in threaded connection with the screw rod, so that the nut moves axially along the screw rod when the screw rod rotates around a self central shaft; the linear guide rail comprises an optical axis, a linear bearing and an optical axis supporting seat, the linear bearing can freely move along the axial direction of the optical axis, and the optical axis is supported on the mounting plane by the optical axis supporting seat; the sliding connecting rod is perpendicular to the screw rod, two ends of the sliding connecting rod are sleeved on the optical axis and are fixedly connected with the linear bearing with the flange on the optical axis, and the sliding connecting rod is used for realizing synchronous movement of the screw rod nut and the linear bearing on the optical axis; the herringbone connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod, the bottom end of the first connecting rod is hinged to the sliding connecting rod, and the upper end of the first connecting rod is hinged to the other two connecting rods through joint joints; the bottom end of the second connecting rod is hinged to the front part of the base, and the upper end of the second connecting rod is hinged to the upper end of the first connecting rod and the bottom end of the third connecting rod; the bottom end of the third connecting rod is hinged with the other two connecting rods, and the upper end of the third connecting rod is hinged with the back plate through a joint bearing, so that the upper end of the third connecting rod supports the back plate to lift or descend in the moving process of the first connecting rod along with the sliding connecting rod, and when the nut of the screw-nut pair moves to the rear end of the screw rod, the back plate and the seat plate are positioned on the same horizontal plane.

The back plate comprises a main back plate and two side back plates, wherein two sides of the main back plate are respectively hinged with one side back plate, and the front end of the main back plate is hinged with the rear end of the seat plate.

The two sets of herringbone connecting rods are arranged, the lower ends of the two sets of herringbone connecting rods are symmetrically hinged to the two ends of the sliding connecting rod respectively, and the upper ends of the herringbone connecting rods are hinged to the bottoms of the side back plates on the same side through corresponding joint bearings respectively.

The handrail linkage device comprises two sets of handrail linkage devices, the sliding part comprises at least one pair of first sliding rods, the same pair of first sliding rods are arranged oppositely, and gaps are directly reserved between the two first sliding rods and used for the lifting part to pass through; the upper end of the first sliding rod is provided with a handrail, and the lower part of the first sliding rod is inserted into the sliding groove of the seat plate and is in sliding fit with the sliding groove; the lifting part comprises a first push rod and a roller, the first push rod is of an ivory structure, the front end of the first push rod is hinged to the bottom of the leg plate, the rear end of the first push rod upwards tilts to form a pushing end for pushing the handrail, the roller used for reducing friction force between the first push rod and the handrail is installed at the rear end of the first push rod, when the seat plate and the leg plate are located on the same horizontal plane, the roller of the pushing end of the first push rod is not in contact with the handrail, and when the leg plate is placed down, the roller is in contact with the handrail and pushes the handrail to lift from the sliding groove of the seat plate.

The multistage transmission connecting rod assembly comprises a first leg plate connecting rod, a long pin shaft and a second leg plate connecting rod, wherein the upper end of the first leg plate connecting rod is hinged with the bottom of the leg plate, and the lower end of the first leg plate connecting rod is hinged with the long pin shaft; two ends of the long pin shaft are respectively hinged with a second leg plate connecting rod, the transfer part of the second leg plate connecting rod is hinged with the fixed hinge support, and the lower end of the second leg plate connecting rod is respectively connected with the horizontal movable end of the gas spring and the front end of the horizontal pushing device in a sliding manner; the movement direction of the front end of the horizontal pushing device and the movement direction of the horizontal movable end of the gas spring are opposite or reverse.

The horizontal pushing device comprises a second push rod, a push rod fixing sleeve, a sliding sleeve, a third push rod and a joint, wherein the rear end of the second push rod is vertical, and the sliding sleeve is sleeved outside the second push rod; the sliding sleeve is hinged with the sliding connecting rod; the front end of the second push rod is inserted into the push rod sleeve, and the front end of the second push rod and the push rod sleeve form a sliding pair, so that the second push rod axially extends and retracts along the push rod sleeve, and the sliding sleeve vertically ascends and descends along the second push rod in the extension and retraction process of the second push rod; the rear end of the third push rod is inserted into the push rod fixing sleeve and is in sliding connection with the push rod fixing sleeve, the front end of the third push rod horizontally slides in a sliding groove at the lower end of the second leg plate connecting rod, and the third push rod and the gas spring are coaxial.

The sum of the maximum length of the second push rod inserted into the push rod sleeve and the maximum length of the third push rod inserted into the push rod fixing sleeve is greater than the total length of the push rod fixing sleeve, so that the leg plate lags behind the back plate to move.

The first connecting rod and the third connecting rod are straight lines when the backboard is horizontally placed, and the second connecting rod and the third connecting rod are straight lines when the backboard is completely lifted, so that the backboard and the backboard are self-locked respectively when two states are formed.

The invention has the beneficial effects that: the auxiliary bed for the old people is designed through experiments, and mainly aims to solve the problems of the old people and improve the life quality of the old people.

The design of the auxiliary bed accords with the human engineering and is convenient to operate. The bed board is divided into three parts, namely a backrest, a seat board and a leg board. The auxiliary bed for taking up and lying utilizes the modularized bed board and the plurality of connecting rod mechanisms, and is driven by the stepping motor to realize the integral linkage from the back board, the leg board to the handrail. When the old gets up, the old presses the button to lift the back plate by 70 degrees, the leg plates are put down by 110 degrees after lagging, and the armrests are lifted to assist the old to get up. When the old people go to bed, the user presses the 'flat' button, the back plate and the leg plate are flat, the handrails descend, and the old people are assisted to sleep.

The backrest is controlled to lift through a three-link mechanism, and two limit positions in the movement of the three links are positioned at dead points, so that the stability of the backrest is improved; armrests are arranged on two sides of the seat plate, and when the leg plates are lowered, the mechanism is linked to drive the armrests to ascend, so that the safety of the old is protected, and the old can get up conveniently; the air spring is additionally arranged on the connecting rod below the leg plate, so that the movement elasticity of the leg plate is increased, and the control and the fixation of the leg plate are more stable.

The operation of assisting the old to get up and lie in bed is simple and convenient, the motor of the bed is controlled by a controller with a simple control interface, and the leg plate can be automatically placed after a certain time when the backrest rises through the linkage mechanism of the backrest part and the leg plate part, so that the bed is ingenious and convenient in design.

Drawings

Fig. 1 is a structural view of a back plate lifting mechanism (lifted state) of the present invention.

Fig. 2 shows a structure of a back plate lifting mechanism (in a flat state) according to the present invention.

Fig. 3 is a structural view of the armrest linkage elevating mechanism of the present invention.

FIG. 4 is a view showing the structure of the leg plate and the first push rod of the present invention.

Fig. 5 is a structural view of a leg-plate lowering mechanism (in a flat state) of the present invention.

Fig. 6 is a structural view of a leg plate lowering mechanism (lowered state) of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

With reference to the accompanying drawings: