阅读说明：本技术 一种助老功能床 (Bed with function of helping old people ) 是由 侍中楼 张朝刚 张龙 叶俊吉 许敬羚 曾亦 叶家豪 刘鹏 徐志杰 于 2020-05-06 设计创作，主要内容包括：本发明公开了一种助老功能床,其包括床体和第一连杆组件,床体中的背板组件、坐板组件和脚板组件从左至右依次并列设置,驱动支撑件的上端与第一板件的下端驱动连接,坐板组件的两端分别与背板组件、脚板组件可转动的连接,第二板件安装于支架的上端,旋转杆与坐板组件的左端和右端之间可转动的连接,旋转杆的两端分别与驱动杆、拉升杆可转动的连接,驱动杆的右端位于第二板件的上侧,拉升杆与旋转杆的连接端位于第二板件的下侧,驱动杆的左端与背板组件连接,拉升杆的右端与脚板组件连接,本发明提供的助老功能床,使得老年人的背部抬起和腿部弯曲,实现了帮助老年人由平躺到坐起再到起身站立的动作；增强了老年人背部及头部起身的舒适性。(The invention discloses an old-age-helping functional bed, which comprises a bed body and a first connecting rod assembly, wherein a back plate assembly, a seat plate assembly and a foot plate assembly in the bed body are sequentially arranged in parallel from left to right, the upper end of a driving supporting piece is connected with the lower end of a first plate in a driving way, the two ends of the seat plate assembly are respectively rotatably connected with the back plate assembly and the foot plate assembly, a second plate is arranged at the upper end of a bracket, a rotating rod is rotatably connected between the left end and the right end of the seat plate assembly, the two ends of the rotating rod are respectively rotatably connected with a driving rod and a lifting rod, the right end of the driving rod is positioned at the upper side of the second plate, the connecting end of the lifting rod and the rotating rod is positioned at the lower side of the second plate, the left end of the driving rod is connected with the back plate, the back of the old is lifted and the legs are bent, so that the actions of helping the old to get up and stand after lying down to sit up are realized; the back and head rising comfort of the old is enhanced.)

1. An old-person-assisting functional bed, comprising:

a bed body and a first connecting rod component;

the bed body comprises a back plate assembly, a seat plate assembly and a foot plate assembly, wherein two ends of the seat plate assembly are respectively rotatably connected with the back plate assembly and the foot plate assembly; the backboard component comprises a first board and a driving support piece, wherein the upper end of the driving support piece is in driving connection with the lower end of the first board; the seat plate assembly comprises a second plate and a bracket, and the second plate is arranged at the upper end of the bracket;

the first connecting rod assembly comprises a driving rod, a rotating rod and a pulling and lifting rod, the rotating rod is rotatably connected with two ends of the seat board assembly, two ends of the rotating rod are respectively rotatably connected with the driving rod and the pulling and lifting rod, the connecting end of the driving rod and the rotating rod is positioned on one side of the second board, and the connecting end of the pulling and lifting rod and the rotating rod is positioned on the other side of the second board; the end of the driving rod far away from the rotating rod is connected with the back plate assembly, and the end of the lifting rod far away from the rotating rod is connected with the foot plate assembly.

2. The aging aid functional bed according to claim 1, wherein: the first connecting rod assembly is symmetrically arranged and further comprises a first push rod, a second push rod and a third push rod, the two ends of the first push rod are respectively connected with the two sides in a rotatable mode, the two ends of the second push rod are respectively connected with the two sides in a rotatable mode, and the two ends of the third push rod are respectively connected with the two sides in a rotatable mode.

3. The aging aid functional bed according to claim 2, wherein: the first plate comprises a plurality of first single plates, the first single plates are hinged to one another, each first single plate comprises two plates, a protection pad and a plurality of hinged joints, the two ends of each plate are bent and formed, the two plates are assembled to form the first single plates, the protection pads are installed on the outer side faces of the plates in a coated mode, and the two sides of the hinged joints are fixedly connected with the inner side faces of the plates respectively.

4. The aging aid functional bed according to claim 3, wherein: the backboard component further comprises a second connecting rod component and a steering engine, the upper end of the second connecting rod component is rotatably connected with the hinge joint, and the steering engine is in driving connection with the lower end of the second connecting rod component; the second connecting rod assembly comprises two transverse rods, a plurality of first longitudinal rods, a plurality of driven rods, a plurality of second longitudinal rods, a driving rod and at least one fixed rod, the two transverse rods are arranged in parallel, one end, close to the second plate, of each transverse rod is provided with a first rotating hole matched with the corresponding first push rod, and the first push rods are rotatably arranged in the first rotating holes; each the both ends of first vertical pole respectively with two rotatable the being connected of horizontal pole, it is a plurality of at least two in the driven lever all with rotatable the being connected in both ends of horizontal pole, it is a plurality of rotatable connection between the driven lever, each the both ends of second vertical pole all correspond rather than the rotatable connection of tip of driven lever, the hinge joint with rotatable the being connected of second vertical pole, rotatable the installing in two respectively in both ends of driving lever the horizontal pole, the inside meshing tooth that is provided with the output end looks adaptation of steering wheel of one end of driving lever, the steering wheel with the driving lever meshing sets up, the dead lever is the triangle-shaped, one of them base angle of dead lever with driving lever fixed connection, two other base angles of dead lever all with rotatable the being connected of driven lever.

5. The aging aid functional bed according to claim 2, wherein: the backboard component also comprises an underframe and universal idler wheels with locking pieces, the underframe is fixedly arranged at the lower end of the bracket, and the universal idler wheels are arranged at four bottom corners of the underframe; the chassis comprises at least two cross beams and at least one longitudinal beam, the cross beams are arranged side by side, two ends of the longitudinal beam are respectively and fixedly connected with the cross beams, and the support is fixedly arranged at the upper ends of the cross beams.

6. The aging aid functional bed according to claim 5, wherein: the lower end of the driving support piece is fixedly connected with the underframe; the driving support piece comprises an electric push rod, a push plate and a cylinder, the push plate is fixedly installed on the underframe, a groove is formed in the middle of the push plate, the cylinder is fixedly installed in the groove, one end of the electric push rod is fixedly connected with the cylinder, and the other end of the electric push rod is fixedly connected with the first push rod.

7. The aging aid functional bed according to claim 2, wherein: the second plate comprises a second single plate, a fixed plate, a rotating rod and a torsion spring, two ends of the second single plate are respectively hinged with the first plate and the foot plate assembly, the second single plate is provided with a second rotating hole matched with the second push rod, and the second push rod is rotatably arranged in the second rotating hole; the fixed plate is fixedly arranged at the upper end of the bracket, one end of the rotating rod is rotatably connected with the fixed plate, and the other end of the rotating rod is abutted against the lower end of the second single plate; the torsion spring is arranged at one end of the second single plate hinged to the foot plate component, so that the foot plate component has a tendency of rotating towards the second single plate.

8. The aging aid functional bed according to claim 1, wherein: the seat plate assembly further comprises a driving assembly, the driving assembly comprises a supporting plate, a seat body, a motor, a coupler, a worm wheel and a lead screw, the supporting plate is fixedly installed on the support, the seat body comprises a motor base, a fixed base and a worm wheel base, the motor base, the fixed base and the worm wheel base are all fixedly installed at one end of the supporting plate, the motor is fixedly installed on the motor base, the output end of the motor is fixedly connected with one end of the coupler, the other end of the coupler is fixedly connected with the worm, the end part of the worm is rotatably installed on the fixed base, and the worm is meshed with the worm wheel; the worm wheel is rotatably arranged on the worm wheel seat, a threaded hole matched with the screw rod is formed in the worm wheel, the screw rod is in threaded connection with the threaded hole, and the upper end of the screw rod is connected with the lower end of the second plate.

9. The aging aid functional bed according to claim 8, wherein: the drive assembly further comprises a bearing assembly and an end cover, the bearing assembly comprises a tapered roller bearing and a thrust ball bearing, and the tapered roller bearing is arranged in the fixed seat so that the worm can be rotatably arranged on the fixed seat; the end cover is covered and installed on the thrust ball bearing, so that the worm wheel is rotatably installed on the turbine seat.

10. The aging aid functional bed according to claim 2, wherein: the foot plate assembly comprises a third plate, the third plate comprises a third single plate and a pulling piece, a plurality of through holes are uniformly formed in the third single plate, the pulling piece is fixedly installed at the lower end of the third single plate, a third rotating hole matched with the third push rod is formed in one end, far away from the second plate, of the pulling piece, and the third push rod is rotatably installed in the third rotating hole.

Technical Field

The invention relates to the technical field of rehabilitation tables and chairs for old people or patients, in particular to a bed with an old-age assisting function.

Background

With the progress of the times, the life of human beings is greatly prolonged, and in addition, the growth peak of the century is relatively centralized, so that the aging times come. Many old people can live alone or get into the asylum for the aged, however, the old people mostly all have physical exhaustion, the strength of four limbs is weaker, the action of climbing when getting up is difficult to realize, if suffer from diseases, then it is more difficult to get up independently.

The existing old-people-assisting functional bed has the following problems: the first plate (namely the plate part which is attached to the back of the old when lying down) is designed into an integral plate-shaped structure, so that the first plate cannot be well attached to the spine of a human body when the old sits up, comfortableness is affected, and experience is poor; the back and the legs can not be linked, namely when the old-person back is pushed up, the third plate placed on the legs is still in a horizontal state, so that the motion rule of the human body is not met, and the legs are easily pulled when the back is pushed up; the whole process of changing the lying posture into the sitting posture and then standing up for the old people cannot be helped.

Disclosure of Invention

In view of the above, the present invention provides an old people assisting bed to solve the above-mentioned problem that the old people lying down are difficult to independently perform the actions of getting up and climbing.

In order to achieve the above object, the present invention provides an old people assisting functional bed, comprising:

a bed body and a first connecting rod component;

the bed body comprises a back plate assembly, a seat plate assembly and a foot plate assembly, wherein two ends of the seat plate assembly are respectively rotatably connected with the back plate assembly and the foot plate assembly; the backboard component comprises a first board and a driving support piece, wherein the upper end of the driving support piece is in driving connection with the lower end of the first board; the seat plate assembly comprises a second plate and a bracket, and the second plate is arranged at the upper end of the bracket;

the first connecting rod assembly comprises a driving rod, a rotating rod and a pulling and lifting rod, the rotating rod is rotatably connected with two ends of the seat board assembly, two ends of the rotating rod are respectively rotatably connected with the driving rod and the pulling and lifting rod, the connecting end of the driving rod and the rotating rod is positioned on one side of the second board, and the connecting end of the pulling and lifting rod and the rotating rod is positioned on the other side of the second board; the end of the driving rod far away from the rotating rod is connected with the back plate assembly, and the end of the lifting rod far away from the rotating rod is connected with the foot plate assembly.

The invention provides a bed with an old-age assisting function, which has the following beneficial effects: the first plate integrally ascends and rotates due to the fact that stress of the first connecting rod assembly ascends, the head, the neck and the back of the old person are greatly lifted, the rotating rod rotates due to stress and drives the lifting rod to rotate, then the lifting rod pulls the foot plate assembly to rotate and move downwards, bending landing of the lower legs and the feet of the old person is facilitated, and in the rotating process of the rotating rod, the two hands of the old person can stand up by virtue of force, so that the old person can sit up after lying down to stand up; due to the hinged arrangement of the plurality of first single plates in the first plate and the arrangement of the second connecting rod assembly, the first plate is slightly deformed so as to better fit the head, the neck and the back of the old, and the rising comfort is enhanced; under the motor drive in drive assembly, make the second plate rise and rotate, further lift old person's buttock and thigh, it is more convenient to get up.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention, and in which:

FIG. 1 is a schematic structural view of an embodiment of a functional bed for aiding old people according to the present invention;

FIG. 2 is a schematic structural view of an embodiment of a first link assembly;

FIG. 3 is a schematic structural view of the first embodiment after the first plate member has been flipped over;

FIG. 4 is a schematic structural view of an embodiment of the old-aid functional bed with the first plate and the third single plate removed;

FIG. 5 is a schematic structural view of an embodiment of a second linkage assembly coupled to a first plate;

FIG. 6 is a schematic structural view of an embodiment of a second linkage assembly;

FIG. 7 is a front view of one embodiment of the active lever of FIG. 6;

FIG. 8 is an elevation view of an embodiment of the second linkage assembly rotationally deformed by an external force;

FIG. 9 is a schematic view of an embodiment of the connection of the chassis to the bracket;

FIG. 10 is a schematic view of an embodiment of the drive support coupled to the undercarriage;

FIG. 11 is a schematic structural view of the second embodiment after the second plate member has been flipped over;

FIG. 12 is a schematic structural view of an embodiment of a drive assembly;

FIG. 13 is a schematic structural view of the embodiment of FIG. 12 with the motor, the coupling, the upper end of one of the mounting blocks, the turbine housing, and the upper end cap removed;

FIG. 14 is a schematic structural view of the embodiment after the foot plate assembly has been flipped over;

reference numerals: a bed body-1; a first link assembly-2;

a backplane assembly-11; a seat plate assembly-12; -a foot plate assembly-13; a drive rod-21; rotating rod-22; a pull rod-23; a first push rod-24; a second push rod-25; a third push rod-26;

a first plate-111; a drive support-112; a second connecting-rod assembly-113; a steering engine-114; a chassis-115; a universal roller-116; a second plate-121; a support-122; a drive assembly-123; a third single board-131; a pull-up member-132;

a first veneer 111 a; an electric push rod-1121; a push plate-1122; cylinder-1123; a groove-1124; a cross bar-113 b; a first side rail-1131; a driven rod-1132; a second side rail-1133; an active bar-1134; fixing rod-1135; beam-1151; stringer-1152; a second veneer-121 c; an anchor plate-1211; a rotating rod-1212; torsion spring-1213; a seat body-123 d; a support plate-1231; motor-1232; a coupling-1233; a worm-1234; a worm gear-1235; screw-1236; end cap-1237; a through hole-1311; a third rotary bore-1321;

panel-a 1; pad-a 2; hinge-a 3; first orifice-b 1; second rotary aperture-c 1; motor mount-d 1; holder-d 2; worm gear seat-d 3; tapered roller bearing-e 1; thrust ball bearing-e 2.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

As shown in fig. 1, the old-helping functional bed comprises a bed body 1 and a first connecting rod component 2;

the bed body 1 comprises a back plate assembly 11, a seat plate assembly 12 and a foot plate assembly 13, wherein the back plate assembly 11, the seat plate assembly 12 and the foot plate assembly 13 are sequentially arranged in parallel from left to right to form a plane for the old to lie down; the backboard assembly 11 comprises a first board 111 and a driving support 112, wherein the upper end of the driving support 112 is in driving connection with the lower end of the first board 111; the left end and the right end of the seat plate component 12 are respectively rotatably connected with the right end of the back plate component 11 and the left end of the foot plate component 13; the seat plate assembly 12 includes a second plate 121 and a bracket 122, and the second plate 121 is mounted to the upper end of the bracket 122 (the second plate 121 is detachable from the bracket 122).

It should be reminded that the back board assembly 11 mainly supports the head, neck and back of the elderly who lies down, the seat board assembly 12 mainly supports the hip and thighs of the elderly, and the foot board assembly 13 mainly supports the thighs and feet of the elderly.

The first link assembly 2 includes a driving rod 21, a rotating rod 22 and a pulling-up rod 23, the rotating rod 22 is rotatably connected to the left end and the right end of the seat assembly 12, it should be noted that the rotating rod 22 can be rotatably connected to the second plate 121 of the seat assembly 12, and can also be rotatably connected to the bracket 122 of the seat assembly 12; the left end and the right end of the rotating rod 22 are rotatably connected with the right end of the driving rod 21 and the left end of the pull-up rod 23 respectively, and the connecting end of the driving rod 21 and the rotating rod 22, that is, the right end of the driving rod 21 is located on the upper side of the second plate 121, and the connecting end of the pull-up rod 23 and the rotating rod 22 is located on the lower side of the second plate 121; further, the left end of the driving rod 21 is connected to the backboard assembly 11, and the right end of the pull-up rod 23 is connected to the footboard assembly 13.

When assisting the action of rising of lying down old person, at first under the external force drive, make actuating lever 21 rise, the rising of actuating lever 21 drives the holistic rising and the rotation of first plate 111, thereby lift up old person's head and back by a wide margin, moreover, actuating lever 21 is at the in-process that rises, the left end of rotary rod 22 receives the drive power of actuating lever 21 and clockwise turning, and then drive pull-up rod 23 and move down and clockwise turning, pull down footboard subassembly 13 from this and revolve the right-hand member of second plate 121 rotatory certain angle, realize footboard subassembly 13 and bedplate subassembly 11's linkage, with the human body posture of getting up of better laminating, it is special, old person when rising, both hands can hold rotary rod 22, in order to further accomplish the action of standing of rising under the boosting of external force.

For better explanation of the first link assembly 2, please continue to refer to fig. 2, the first link assembly 2 is symmetrically disposed, and the first link assembly 2 further includes a first push rod 24, a second push rod 25 and a third push rod 26, two ends of the first push rod 24 are respectively rotatably connected to the driving rods 21 at two sides, two ends of the second push rod 25 are respectively rotatably connected to the rotating rods 22 at two sides, and two ends of the third push rod 26 are respectively rotatably connected to the pulling-up rods 23 at two sides.

For better explaining the backboard assembly 11, please continue to refer to fig. 3-8, the first board 111 includes a plurality of first single boards 111a, the plurality of first single boards 111a are hinged to each other, each first single board 111a includes two boards a1, a pad a2 and a plurality of hinges a3, two ends of the board a1 are bent and formed, the two boards a1 are assembled to form the first single board 111a, the pad a2 is wrapped and installed on the outer side surfaces of the two boards a1 to protect the head and back of the elderly and increase the comfort of lying, and the left end and the right end of the hinge a3 are respectively fixedly connected with the inner side surfaces of the boards a 1; the first single plates 111a are hinged in parallel to better fit the head, neck and back of a human body, so that the comfort of the human body is enhanced.

Preferably, the back plate assembly 11 further includes a second connecting rod assembly 113 and a steering engine 114, an upper end of the second connecting rod assembly 113 is rotatably connected to the hinge joint a3, and the steering engine 114 is in driving connection with the second connecting rod assembly 113, so that the second connecting rod assembly 113 rotates and deforms under the driving of the steering engine 114, and further the first single plate 111a is pushed upwards and rotates, so that the head and the neck of the elderly person lying on the back are slightly raised.

Specifically, the second connecting rod assembly 113 includes two crossbars 113b, a plurality of first vertical rods 1131, a plurality of driven rods 1132, a plurality of second vertical rods 1133, a driving rod 1134 and at least one fixing rod 1135, the two crossbars 113b are arranged in parallel, the right end of the crossbar 113b is provided with a first rotating hole b1 matched with the first push rod 24, the first push rod 24 is rotatably installed in the first rotating hole b1, the front end and the rear end of the first vertical rod 1131 are respectively rotatably connected with the front and rear crossbars 113b, the left driven rods 1132 and the right driven rods 1132 are both rotatably connected with the crossbars 113b, the driven rods 1132 are rotatably connected with each other, both ends of each second vertical rod 1133 are rotatably connected with the end of the corresponding driven rod 1132, the hinged head a3 is rotatably connected with the second vertical rod 1133, the front end and the rear end of the driving rod 1134 are respectively installed in the middle of the two crossbars 113b, engaging teeth matched with the output end of the steering engine 114 are arranged inside the front end of the driving rod 1134, the output end of the steering engine 114 is meshed with the driving rod 1134, so as to drive the driving rod 1134 to rotate under the rotation drive of the output end of the steering engine 114, preferably, the model of the steering engine 114 is a prosperous digital steering engine DS 3230; dead lever 1135 is the triangle-shaped, the lower extreme base angle and the active rod 1134 fixed connection of dead lever 1135, two other base angles of dead lever 1135 all with the rotatable connection of driven lever 1132, start steering wheel 114, steering wheel 114 drives active rod 1134 clockwise turning, and then drive dead lever 1135 clockwise turning, the rotation of dead lever 1135 can drive driven lever 1132 rotatory, and then second link assembly 113 after the deformation is passed first plate 111 by means of articulated joint a3 and is rotated, make and take place small deformation between a plurality of first veneers 111a in first plate 111, in order to laminate people's head better, neck and back.

Further, with continued reference to fig. 9-10, the backboard assembly 11 further includes a base frame 115 and a universal roller 116 with a locking member, the base frame 115 is fixedly mounted at the lower end of the bracket 122, and the universal roller 116 is mounted at four bottom corners of the base frame 115; the underframe 115 comprises two cross beams 1151 and at least one longitudinal beam 1152, the two cross beams 1151 are arranged in parallel, two ends of the longitudinal beam 1152 are respectively and fixedly connected with the inner side of the cross beam 1151, and the support 122 is fixedly arranged at the upper end of the cross beam 1151.

The driving support 112 includes an electric pushing rod 1121, a pushing plate 1122 and a cylinder 1123, the pushing plate 1122 is fixedly mounted on the bottom frame 115, more specifically, two ends of the pushing plate 1122 are respectively and fixedly mounted on two sides of the inside of the cross beam 1151, a groove 1124 is formed in the middle of the pushing plate 1122, the cylinder 1123 is fixedly mounted in the groove 1124, as a further limitation, the lower end of the electric pushing rod 1121 is fixedly connected with the cylinder 1123, and the upper end of the electric pushing rod 1121 is fixedly connected with the first pushing rod 24, so that the first plate 111 is integrally rotated and lifted when the electric pushing rod 1121 is pushed upwards.

For better illustration of the second plate 121, please refer to fig. 11, the second plate 121 includes a second single plate 121c, a fixed plate 1211, a rotating rod 1212 and a torsion spring 1213, a left end of the second single plate 121c is hinged to a right end of the first plate 111, more specifically, a left end of the second single plate 121c is hinged to a right end of the first single plate 111a closest to the second plate 121, a right end of the second single plate 121c is hinged to a left end of the foot plate assembly 13, the second single plate 121c is provided with a second rotating hole c1 adapted to the second push rod 25, and the second push rod 25 is rotatably installed in the second rotating hole c1, so that the rotating rod 22 rotates around the second plate 121.

The fixing plate 1211 is fixedly installed at the upper end of the bracket 122, the right end of the rotating rod 1212 is rotatably connected to the fixing plate 1211, the left end of the rotating rod 1212 abuts against the lower end of the second single plate 121c, and when the rotating rod 1212 is moved upward by an external force, the rotating rod 1212 rotates clockwise around the fixing plate 1211 and pushes the second single plate 121c to move upward and rotate, so as to push the hip and thigh of the elderly person lying on their back upward and rotate, thereby assisting the elderly person to complete the rotation.

The torsion spring 1213 is installed at the right end of the second single plate 121c, so that the foot plate assembly 13 tends to rotate towards the second single plate 121c, that is, when the elderly lies down, the lower leg and the foot of the elderly are supported by the rotation force of the torsion spring 1213, and after the elderly has finished the standing and standing actions, the torsion spring 1213 rotates around the restoring direction (the torsion spring 1213 needs to act together with the second connecting rod assembly 113 and the driving support 112, so that the foot plate assembly 13, the second plate 121 and the first plate 111 are in the same horizontal plane again, which is convenient for the next use).

For better illustration of the seat assembly 12, please continue to refer to fig. 11-13, the seat assembly 12 further includes a driving assembly 123, the driving assembly 123 includes a supporting plate 1231, a seat body 123d, a motor 1232, a coupling 1233, a worm 1234, a worm gear 1235, and a lead screw 1236, the front end and the rear end of the supporting plate 1231 are both fixedly connected with the bracket 122, and the supporting plate 1231 has a certain height from the ground; the seat body 123d comprises a motor seat d1, two fixed seats d2 and a worm wheel seat d3, the motor seat d1, the fixed seat d2 and the worm wheel seat d3 are all fixedly mounted at the upper end of the supporting plate 1231, the motor 1232 is fixedly mounted at the motor seat d1, the output end of the motor 1232 is fixedly connected with the left end of the coupler 1233, and the right end of the coupler 1233 is fixedly connected with the left end of the worm 1234 so as to drive the worm 1234 to rotate in the same direction under the rotation of the motor 1232; the left end and the right end of the worm 1234 are respectively and rotatably mounted on a left fixed seat d2 and a right fixed seat d2, and the worm 1234 is meshed with the worm wheel 1235; the worm wheel 1235 is rotatably installed on the worm wheel seat d3, a threaded hole (not shown in the figure) matched with the lead screw 1236 is formed inside the worm wheel 1235, the lead screw 1236 is in threaded connection with the threaded hole of the worm wheel 1235, the upper end of the lead screw 1236 is connected with the rotating rod 1212, specifically, the lead screw 1236 and the rotating rod 1212 can be in fixed connection or rotational connection, so as to drive the second plate 121 to rotate towards the third plate 23 under the driving of the lead screw 1236, i.e., clockwise rotation, during operation, the motor 1232 is started, the rotation of the motor 1232 drives the rotation of the worm 1234, and further the worm wheel 1235 engaged with the worm 1234 rotates, and the worm wheel 1235 rotates in the worm wheel seat d3 to drive the lead screw 1236 to ascend and descend, so as to push the second plate 121 to rotate by a certain angle.

Preferably, the driving assembly 5 further includes a bearing assembly 123e and an end cap 1237, the bearing assembly 123e includes a plurality of tapered roller bearings e1 and a thrust ball bearing e2, the plurality of tapered roller bearings e1 are respectively installed in their corresponding holders d2, as an embodiment, an outer ring of the tapered roller bearing e1 is fixedly connected with an inner portion of the holder d2, and an inner ring of the tapered roller bearing e1 is fixedly connected with both ends of the worm 1234, so as to realize the rotation movement of the worm 1234 in the holder d 2; the thrust ball bearings e2 are sleeved on the upper end and the lower end of the worm wheel 1235, the end cap 1237 includes an upper end cap and a lower end cap, the upper end cap and the lower end cap are respectively covered and installed on the upper end and the lower end of the d2, and under the action of the d2 and the end cap 1237, the worm wheel 1235 is enabled to rotate in the worm wheel seat d 3.

For better explaining the foot plate assembly 13, please refer to fig. 14, the foot plate assembly 13 includes a third single plate 131 and a lifting member 132, the third single plate 131 is uniformly provided with a plurality of through holes 1311 to reduce the weight of the third single plate 131, the lifting member 132 is fixedly installed at the left side of the lower end of the third single plate 131, the right end of the lifting member 132 is provided with a third rotating hole 1321 adapted to the third push rod 26, the third push rod 26 is rotatably installed at the third rotating hole 1321, and the lifting rod 23 is movably installed at the third rotating hole 1321.

Preferably, the bed with the function of helping the old people is further provided with a controller, the model of the controller is STM32 preferably, the controller is electrically connected with the steering engine 114, the electric push rod 1121 and the motor 1232 respectively so as to control the starting and the closing of the steering engine 114, the starting and the closing of the electric push rod 1121 and the starting and the closing of the motor 1232 respectively, and the operation of the old people is facilitated.