A functional bed for assisting the elderly

Abstract

The present invention discloses a functional bed for assisting the elderly, which comprises a bed body and a first connecting rod assembly. A backboard assembly, a seat board assembly and a footboard assembly in the bed body are arranged in parallel from left to right in sequence. The upper end of a driving support is drivingly connected to the lower end of the first plate, and two ends of the seat board assembly are rotatably connected to the backboard assembly and the footboard assembly respectively. The second plate is installed at the upper end of the bracket, and a rotating rod is rotatably connected to the left and right ends of the seat board assembly. Two ends of the rotating rod are rotatably connected to a driving rod and a lifting rod respectively, and the right end of the driving rod is located on the upper side of the second plate, and the connecting end of the lifting rod and the rotating rod is located on the lower side of the second plate, the left end of the driving rod is connected to the backboard assembly, and the right end of the lifting rod is connected to the footboard assembly. The functional bed for assisting the elderly provided by the present invention enables the elderly to lift their backs and bend their legs, thereby helping the elderly to move from lying flat to sitting up and then to standing up; and enhancing the comfort of the elderly's back and head when getting up.

Description

Technical Field

[0001] The invention relates to the technical field of rehabilitation tables and chairs for the elderly or patients, in particular to a functional bed for assisting the elderly. Background Art

[0002] With the progress of the times, human life expectancy has increased significantly. Coupled with several fertility peaks in the 21st century, the aging population is relatively concentrated, and the aging era has arrived. Many elderly people live alone or enter nursing homes. However, most elderly people are physically exhausted and have weak limbs. It is difficult for them to climb out of bed when getting up. If they suffer from diseases, it is even more difficult for them to get up independently.

[0003] The existing elderly-assisting beds have the following problems: the first plate (i.e., the plate part that the elderly person's back touches when they lie flat) is designed as an integral plate-like structure, which makes it difficult for the first plate to fit the human spine well when the elderly person sits up, affecting comfort and providing a poor experience; the back and legs cannot be linked, i.e., when the elderly-assisting bed pushes up the elderly person's back, the third plate on which the legs are placed is still in a horizontal state, which does not conform to the laws of human movement and can easily cause strain on the legs when the back is pushed up; it is unable to help the elderly person complete the entire process of changing from a lying position to a sitting position and then standing up. Summary of the invention

[0004] In view of this, the present invention provides an elderly-assisting functional bed to solve the above-mentioned problem that it is difficult for elderly people lying flat to get up and climb out of bed by themselves.

[0005] In order to achieve the above object, the present invention provides an elderly-assisting functional bed, comprising:

[0006] Bed and first connecting rod assembly;

[0007] The bed body comprises a backboard assembly, a seat assembly and a footboard assembly, and the two ends of the seat assembly are rotatably connected to the backboard assembly and the footboard assembly respectively; the backboard assembly comprises a first plate and a driving support, and the upper end of the driving support is drivingly connected to the lower end of the first plate; the seat assembly comprises a second plate and a bracket, and the second plate is installed at the upper end of the bracket;

[0008] The first connecting rod assembly includes a driving rod, a rotating rod and a lifting rod. The rotating rod is rotatably connected to both ends of the seat plate assembly, and both ends of the rotating rod are rotatably connected to the driving rod and the lifting rod respectively. The connecting end of the driving rod and the rotating rod is located on one side of the second plate, and the connecting end of the lifting rod and the rotating rod is located on the other side of the second plate; one end of the driving rod away from the rotating rod is connected to the back plate assembly, and one end of the lifting rod away from the rotating rod is connected to the foot plate assembly.

[0009] The present invention provides an elderly-assisting functional bed with the following beneficial effects: the first connecting rod assembly is forced to rise, so that the first plate member rises and rotates as a whole, the head, neck and back of the elderly are greatly lifted, the rotating rod is forced to rotate and drives the lifting rod to rotate, and then the lifting rod pulls the foot plate assembly to rotate and move downward, which is convenient for the elderly's calves and feet to bend and fall to the ground. During the rotation of the rotating rod, the elderly can get up with the help of both hands, so as to realize the movement of the elderly from lying flat to sitting up and then standing up; the hinged setting between the multiple first single plates in the first plate member and the setting of the second connecting rod assembly cause the first plate member to produce a slight deformation, so as to better fit the head, neck and back of the elderly, thereby enhancing the comfort of getting up; driven by the motor in the driving assembly, the second plate member rises and rotates, further lifting the elderly's buttocks and thighs, making it more convenient to get up. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0011] Figure 1 It is a structural schematic diagram of an embodiment of an elderly-assisting functional bed provided by the present invention;

[0012] Figure 2 is a structural schematic diagram of an implementation scheme of a first connecting rod assembly;

[0013] Figure 3 is a structural schematic diagram of an implementation method after the first plate is turned over;

[0014] Figure 4 It is a structural schematic diagram of an embodiment of the elderly-assisting functional bed after removing the first plate and the third single plate;

[0015] Figure 5 A structural schematic diagram of an implementation method when the second connecting rod assembly is connected to the first plate;

[0016] Figure 6 is a structural schematic diagram of an implementation scheme of a second connecting rod assembly;

[0017] Figure 7 yes Figure 6 A front view of an embodiment of the middle active rod;

[0018] Figure 8 is a front view of an embodiment of the second connecting rod assembly after being driven by an external force to rotate and deform;

[0019] Fig. 9 It is a structural schematic diagram of an implementation method when the base frame is connected to the bracket;

[0020] Fig.10 It is a structural schematic diagram of an implementation method when the driving support member is connected to the base frame;

[0021] Fig.11 is a structural schematic diagram of an implementation method after the second plate is flipped over;

[0022] Fig.12 is a schematic structural diagram of an implementation scheme of a drive assembly;

[0023] Fig.13 yes Fig.12 A schematic diagram of the structure of an embodiment after removing the motor, the coupling, the upper end of one of the fixed seats, the worm gear seat and the upper end cover;

[0024] Fig.14 It is a schematic structural diagram of an embodiment of the foot plate assembly after flipping;

[0025] Reference numerals: bed body-1; first connecting rod assembly-2;

[0026] Back plate assembly-11; seat plate assembly-12; foot plate assembly-13; driving rod-21; rotating rod-22; lifting rod-23; first push rod-24; second push rod-25; third push rod-26;

[0027] First plate 111; driving support 112; second connecting rod assembly 113; steering gear 114; chassis 115; universal roller 116; second plate 121; bracket 122; driving assembly 123; third single plate 131; lifting member 132;

[0028] The first single plate 111a; the electric push rod 1121; the push plate 1122; the column 1123; the groove 1124; the cross bar 113b; the first longitudinal rod 1131; the driven rod 1132; the second longitudinal rod 1133; the active rod 1134; the fixed rod 1135; the cross beam 1151; the longitudinal beam 1152; the second single plate 121c; the fixed plate 1211; the rotating rod 1212; the torsion spring 1213; the seat 123d; the support plate 1231; the motor 1232; the coupling 1233; the worm 1234; the worm wheel 1235; the screw 1236; the end cover 1237; the through hole 1311; the third rotating hole 1321;

[0029] Plate-a1; pad-a2; hinged head-a3; first rotating hole-b1; second rotating hole-c1; motor seat-d1; fixed seat-d2; worm gear seat-d3; tapered roller bearing-e1; thrust ball bearing-e2. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] like Figure 1 As shown, the elderly-assisting functional bed comprises a bed body 1 and a first connecting rod assembly 2;

[0032] The bed body 1 includes a backboard assembly 11, a seat assembly 12 and a footboard assembly 13, which are arranged in parallel from left to right to form a flat surface for the elderly to lie flat; the backboard assembly 11 includes a first plate 111 and a driving support 112, and the upper end of the driving support 112 is drivingly connected to the lower end of the first plate 111; the left and right ends of the seat assembly 12 are rotatably connected to the right end of the backboard assembly 11 and the left end of the footboard assembly 13 respectively; the seat assembly 12 includes a second plate 121 and a bracket 122, and the second plate 121 is installed at the upper end of the bracket 122 (the second plate 121 can be detached from the bracket 122).

[0033] It should be noted that the backboard assembly 11 is mainly used to support the head, neck and back of the elderly lying flat, the seat assembly 12 is mainly used to support the buttocks and thighs of the elderly, and the footboard assembly 13 is mainly used to support the calves and feet of the elderly.

[0034] The first connecting rod assembly 2 includes a driving rod 21, a rotating rod 22 and a lifting rod 23. The rotating rod 22 is rotatably connected to the left and right ends of the seat plate assembly 12. It should be noted that the rotating rod 22 can be rotatably connected to the second plate 121 in the seat plate assembly 12, and can also be rotatably connected to the bracket 122 in the seat plate assembly 12; the left and right ends of the rotating rod 22 are rotatably connected to the right end of the driving rod 21 and the left end of the lifting 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 lifting 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 back plate assembly 11, and the right end of the lifting rod 23 is connected to the foot plate assembly 13.

[0035] When assisting a lying elderly person to get up, first, the driving rod 21 is driven by an external force to rise, and the rising of the driving rod 21 drives the first plate 111 to rise and rotate as a whole, thereby greatly lifting the elderly person's head and back. Moreover, during the rising process of the driving rod 21, the left end of the rotating rod 22 rotates clockwise by the driving force of the driving rod 21, thereby driving the lifting rod 23 to move down and rotate clockwise, thereby pulling the foot plate assembly 13 down and rotating it around the right end of the second plate 121 by a certain angle, thereby realizing the linkage between the foot plate assembly 13 and the seat plate assembly 11, so as to better fit the human body's getting up posture. In particular, when getting up, the elderly can hold the rotating rod 22 with both hands to further complete the action of getting up and standing with the help of external force.

[0036] For a better explanation of the first connecting rod assembly 2, please continue to refer to Figure 2 The first connecting rod assembly 2 is symmetrically arranged, and the first connecting rod assembly 2 also includes a first push rod 24, a second push rod 25 and a third push rod 26. The two ends of the first push rod 24 are rotatably connected to the driving rod 21 on both sides, the two ends of the second push rod 25 are rotatably connected to the rotating rod 22 on both sides, and the two ends of the third push rod 26 are rotatably connected to the lifting rod 23 on both sides.

[0037] For a better explanation of the backplane components, please continue to refer to Figure 3-8 The first plate 111 includes a plurality of first single plates 111a, which are hinged to each other. Each first single plate 111a includes two panels a1, a pad a2 and a plurality of hinge joints a3. The two ends of the panel a1 are bent and formed. The two panels a1 are assembled to form a first single plate 111a. The pad a2 is covered and installed on the outer sides of the two panels a1 to protect the head and back of the elderly and increase the comfort of lying flat. The left and right ends of the hinge joint a3 are fixedly connected to the inner side of the panel a1 respectively. The plurality of first single plates 111a are hinged in parallel to better fit the head, neck and back of the human body and enhance the comfort of the human body.

[0038] Preferably, the back panel assembly 11 also includes a second connecting rod assembly 113 and a servo 114, the upper end of the second connecting rod assembly 113 is rotatably connected to the hinge joint a3, and the servo 114 is drivingly connected to the second connecting rod assembly 113 so that the second connecting rod assembly 113 rotates and deforms under the drive of the servo 114, thereby pushing and rotating the first single board 111a upward, so that the head and neck of the elderly person lying flat are slightly lifted.

[0039] Specifically, the second connecting rod assembly 113 includes two cross bars 113b, a plurality of first longitudinal bars 1131, a plurality of driven bars 1132, a plurality of second longitudinal bars 1133, an active bar 1134 and at least one fixed bar 1135. The two cross bars 113b are arranged in parallel. The right end of the cross bar 113b is provided with a first rotating hole b1 adapted to 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 longitudinal bar 1131 are respectively connected to the front and rear ends of the first longitudinal bar 1131. The two cross bars 113b are rotatably connected, the left and right driven rods 1132 are rotatably connected to the cross bar 113b, the multiple driven rods 1132 are rotatably connected, both ends of each second longitudinal rod 1133 are rotatably connected to the ends of the corresponding driven rods 1132, the hinge a3 is rotatably connected to the second longitudinal rod 1133, the front end and the rear end of the active rod 1134 are rotatably installed in the middle of the two cross bars 113b, and the active rod 1134 The front end of the fixed rod 1135 is provided with meshing teeth adapted to the output end of the steering gear 114, and the output end of the steering gear 114 is meshed with the active rod 1134 to drive the active rod 1134 to rotate under the rotation drive of the output end of the steering gear 114. Preferably, the model of the steering gear 114 is the digital steering gear DS3230 of Dasheng; the fixed rod 1135 is triangular in shape, and the bottom angle of the lower end of the fixed rod 1135 is fixedly connected to the active rod 1134, and the other two bottom angles of the fixed rod 1135 are connected to the driven The rod 1132 is rotatably connected to start the servo 114, which drives the active rod 1134 to rotate clockwise, and then drives the fixed rod 1135 to rotate clockwise. The rotation of the fixed rod 1135 will drive the driven rod 1132 to rotate, and then the deformed second connecting rod assembly 113 pushes the first plate 111 to rotate through the hinge joint a3, so that the multiple first single plates 111a in the first plate 111 are slightly deformed to better fit the human head, neck and back.

[0040] For further information, please refer to Figure 9-10 The back panel assembly 11 also includes a base frame 115 and a universal roller 116 with a locking piece. The base frame 115 is fixedly installed at the lower end of the bracket 122, and the universal roller 116 is installed at the four bottom corners of the base frame 115; the base frame 115 includes two cross beams 1151 and at least one longitudinal beam 1152. The two cross beams 1151 are arranged in parallel, and the two ends of the longitudinal beam 1152 are respectively fixedly connected to the inner side of the cross beam 1151, and the bracket 122 is fixedly installed at the upper end of the cross beam 1151.

[0041] The driving support member 112 includes an electric push rod 1121, a push plate 1122 and a column 1123. The push plate 1122 is fixedly installed on the base frame 115. More specifically, the two ends of the push plate 1122 are respectively fixedly installed on the inner two sides of the cross beam 1151. A groove 1124 is formed in the middle of the push plate 1122. The column 1123 is fixedly installed in the groove 1124. As a further limitation, the lower end of the electric push rod 1121 is fixedly connected to the column 1123, and the upper end is fixedly connected to the first push rod 24, so that the first plate member 111 can rotate and rise as a whole when the electric push rod 1121 is pushed upward.

[0042] For a better explanation of the second plate 121, please continue to 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. The left end of the second single plate 121c is hinged to the right end of the first plate 111. More specifically, the left end of the second single plate 121c is hinged to the right end of the first single plate 111a closest to the second plate 121, and the right end of the second single plate 121c is hinged to the 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. 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.

[0043] The fixed plate 1211 is fixedly installed on the upper end of the bracket 122, the right end of the rotating rod 1212 is rotatably connected to the fixed plate 1211, and the left end of the rotating rod 1212 abuts against the lower end of the second single plate 121c. During operation, the rotating rod 1212 is pushed upward under the drive of external force, and the rotating rod 1212 rotates clockwise around the fixed plate 1211 and pushes the second single plate 121c to move upward and rotate, thereby pushing the buttocks and thighs of the lying elderly person upward and rotating, helping the elderly person to complete the rotation action. It can be understood that in order to make the second single plate 121c rotate toward the direction of the third plate 23, the fixed plate 1211 should be installed at one end close to the foot plate assembly 13.

[0044] The torsion spring 1213 is installed at the right end of the second single board 121c so that the footboard assembly 13 tends to rotate toward the second single board 121c, that is, when the elderly person lies flat, the elderly person's calves and feet are supported by the rotational force of the torsion spring 1213. After the elderly person gets up and stands, the torsion spring 1213 rotates around the reset direction (it needs to work together with the second connecting rod assembly 113 and the driving support 112, so that the footboard assembly 13 and the second board 121 and the first board 111 are on the same horizontal plane again, which is convenient for the next use).

[0045] For a better explanation of the seat assembly 12, please continue to refer to Figure 11-13The seat assembly 12 also includes a drive assembly 123, which includes a support plate 1231, a seat body 123d, a motor 1232, a coupling 1233, a worm 1234, a worm wheel 1235 and a screw 1236. The front and rear ends of the support plate 1231 are fixedly connected to the bracket 122, and the support plate 1231 is at a certain height from the ground; the seat body 123d includes a motor seat d1, two fixed seats d2 and a worm wheel seat d3, and the motor The seat d1, the fixed seat d2 and the worm gear seat d3 are all fixedly installed on the upper end of the support plate 1231, the motor 1232 is fixedly installed on the motor seat d1, the output end of the motor 1232 is fixedly connected to the left end of the coupling 1233, and the right end of the coupling 1233 is fixedly connected to the left end of the worm 1234, so that the worm 1234 can be driven to rotate in the same direction under the rotation of the motor 1232; the left and right ends of the worm 1234 are respectively rotated on the fixed seat d1 installed on the left side. 2 and the fixed seat d2 on the right side, the worm 1234 is meshed with the worm wheel 1235; the worm wheel 1235 is rotatably mounted on the worm wheel seat d3, and a threaded hole (not shown in the figure) adapted to the screw rod 1236 is formed inside the worm wheel 1235, the screw rod 1236 is threadedly connected to the threaded hole of the worm wheel 1235, and the upper end of the screw rod 1236 is connected to the rotating rod 1212. Specifically, the screw rod 1236 and the rotating rod 1212 can be either fixedly connected or rotating. Dynamic connection, so that the second plate 121 is driven to rotate toward the third plate 23, that is, clockwise, under the drive of the screw rod 1236. During operation, the motor 1232 is started, and the rotation of the motor 1232 drives the rotation of the worm 1234, and then the worm wheel 1235 meshing with the worm 1234 rotates. The rotation of the worm wheel 1235 in the worm wheel seat d3 drives the screw rod 1236 to rise and fall, thereby pushing the second plate 121 to be lifted and rotated to a certain angle.

[0046] Preferably, the drive assembly 5 also includes a bearing assembly 123e and an end cover 1237. The bearing assembly 123e includes a plurality of tapered roller bearings e1 and thrust ball bearings e2. The plurality of tapered roller bearings e1 are respectively installed in their corresponding fixed seats d2. As an embodiment, the outer ring of the tapered roller bearing e1 is fixedly connected to the inside of the fixed seat d2, and the inner ring of the tapered roller bearing e1 is fixedly connected to both ends of the worm 1234 to enable the worm 1234 to rotate in the fixed seat d2; the thrust ball bearing e2 is sleeved on the upper and lower ends of the worm wheel 1235, and the end cover 1237 includes an upper end cover and a lower end cover, and the upper end cover and the lower end cover are respectively covered and installed on the upper and lower ends of d2. Under the action of d2 and the end cover 1237, the worm wheel 1235 rotates in the worm wheel seat d3.

[0047] To better explain the footboard assembly 13, please continue to refer to 14. The footboard assembly 13 includes a third single plate 131 and a lifting member 132. A plurality of through holes 1311 are evenly provided on the third single plate 131 to reduce the weight of the third single plate 131. The lifting member 132 is fixedly installed on the left side of the lower end of the third single plate 131. A third rotating hole 1321 compatible with the third push rod 26 is provided on the right end of the lifting member 132. The third push rod 26 is rotatably installed in the third rotating hole 1321, and the lifting rod 23 is movably installed in the third rotating hole 1321. Specifically, when assisting the elderly to climb out of bed, the clockwise rotation and downward movement of the lifting rod 23 drives the rotation and downward movement of the lifting member 132, thereby driving the entire third single plate 131 to rotate and move downward, so as to realize the linkage between the first plate 111 and the third single plate 131, which better meets the human body's actions of getting up and getting out of bed.

[0048] Preferably, the elderly-assisting functional bed is also provided with a controller, and the model of the controller is preferably STM32. The controller is electrically connected to the servo 114, the electric push rod 1121 and the motor 1232, respectively, to control the start and stop of the servo 114, the start and stop of the electric push rod 1121 and the start and stop of the motor 1232, so as to facilitate the operation of the elderly.

[0049] During the specific implementation, the servo 114 is first started. The clockwise rotation of the servo 114 drives the second connecting rod assembly 113 to rotate and deform, and causes the first single plates 111a in the first plate 111 to slightly deform, so that the head, neck and back of the elderly lying flat on the plate assembly 2 are slightly lifted, and the electric push rod 1121 is started. The electric push rod 1121 pushes the first push rod 24 upward. The upward movement of the driving rod 21 drives the first plate 111 to move upward as a whole and rotate clockwise around the left end of the second plate 121, so that the head, neck and back of the elderly are lifted as a whole. In the process of the driving rod 21 moving upward, the rotating The rod 22 rotates clockwise and pulls the lifting rod 23 to move down and rotate clockwise, and drives the third plate 23 to move down and rotate, which is convenient for the elderly to bend their legs and fall to the ground. During the upward movement of the electric push rod 1121, the motor 1232 is started, and the motor 1232 drives the worm 1234 to rotate, and drives the worm wheel 1235 to rotate, and then the screw rod 1236 threadedly connected to the worm wheel 1235 rises and drives the second plate 121 to rise and rotate, and the elderly's hips and thighs are lifted; in particular, during the rotation of the rotating rod 22, the elderly can hold the rotating rod 22 with both hands to achieve the action of getting up with the help of force.

[0050] In the above, the elderly person who was lying flat on his back realized the process of going from lying flat to sitting up, and then to standing up and leaving the elderly-assisting bed.

[0051] The present invention provides a functional bed for assisting the elderly, which comprises a bed body and a first connecting rod assembly. A backboard assembly, a seat board assembly and a footboard assembly in the bed body are arranged in parallel from left to right in sequence. The upper end of the driving support is drivingly connected to the lower end of the first plate, and the two ends of the seat board assembly are rotatably connected to the backboard assembly and the footboard assembly respectively. The second plate is installed on the upper end of the bracket, and the rotating rod is rotatably connected to the left and right ends of the seat board assembly. The two ends of the rotating rod are rotatably connected to the driving rod and the lifting rod respectively. The right end of the driving rod is located on the upper side of the second plate, and the connecting end of the lifting rod and the rotating rod is located on the lower side of the second plate. The left end of the driving rod is connected to the backboard assembly, and the right end of the lifting rod is connected to the footboard assembly. The force applied to the first connecting rod assembly rises so that the first plate rises as a whole. The elderly person's head, neck and back are greatly lifted up, and the rotating rod drives the lifting rod to rotate, and then the lifting rod pulls the third plate to rotate and move downward, which is convenient for the elderly person's calves and feet to bend and fall to the ground. During the rotation of the rotating rod, the elderly person can get up with the help of his hands, so as to realize the movement of the elderly person from lying flat to sitting up and then standing up; the hinged setting between the multiple first single plates in the first plate and the setting of the second connecting rod assembly, under the drive of the second connecting rod assembly, the first plate produces a slight deformation, so as to better fit the elderly person's head, neck and back, and enhance the comfort of getting up; the setting of the driving assembly enables the seat plate to rise and rotate the second plate under the drive of the motor, further lifting the elderly person's buttocks and thighs, making it more convenient to get up.

[0052] The above description is only a preferred embodiment of the invention and does not limit the invention in any form. Any ordinary technician in the industry can smoothly implement the invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A functional bed for the elderly, characterized in that ,include: Bed and first connecting rod assembly; The bed body comprises a backboard assembly, a seat assembly and a footboard assembly, and the two ends of the seat assembly are rotatably connected to the backboard assembly and the footboard assembly respectively; the backboard assembly comprises a first plate and a driving support, and the upper end of the driving support is drivingly connected to the lower end of the first plate; the seat assembly comprises a second plate and a bracket, and the second plate is installed at the upper end of the bracket; The first connecting rod assembly includes a driving rod, a rotating rod and a lifting rod, the rotating rod is rotatably connected to both ends of the seat plate assembly, the two ends of the rotating rod are rotatably connected to the driving rod and the lifting rod respectively, and the connecting end of the driving rod and the rotating rod is located on one side of the second plate, and the connecting end of the lifting rod and the rotating rod is located on the other side of the second plate; one end of the driving rod away from the rotating rod is connected to the back plate assembly, and one end of the lifting rod away from the rotating rod is connected to the foot plate assembly; The first connecting rod assembly is symmetrically arranged, and the first connecting rod assembly further comprises a first push rod, a second push rod and a third push rod, two ends of the first push rod are rotatably connected to the driving rods on both sides, two ends of the second push rod are rotatably connected to the rotating rods on both sides, and two ends of the third push rod are rotatably connected to the lifting rods on both sides; The seat plate assembly also includes a driving assembly, which includes a support plate, a seat body, a motor, a coupling, a worm, a worm wheel and a lead screw. The support plate is fixedly mounted on the bracket, and the seat body includes a motor seat, a fixing seat and a worm wheel seat. The motor seat, the fixing seat and the worm wheel seat are all fixedly mounted on one end of the support plate, and the motor is fixedly mounted on the motor seat. The output end of the motor is fixedly connected to one end of the coupling, and the other end of the coupling is fixedly connected to the worm. The end of the worm is rotatably mounted on the fixing seat, and the worm is meshed with the worm wheel; the worm wheel is rotatably mounted on the worm wheel seat, and a threaded hole matching the lead screw is formed inside the worm wheel. The lead screw is threadedly connected to the threaded hole, and the upper end of the lead screw is connected to the lower end of the second plate.

2. The elderly-assisting functional bed according to claim 1, characterized in that: The first panel member includes a plurality of first single plates, which are hinged to each other, and each of the first single plates includes two panels, a protective pad and a plurality of hinge joints. The two ends of the panels are bent into shape, and the two panels are assembled to form the first single plate. The protective pad is covered and installed on the outer side surface of the panel, and the two sides of the hinge joint are respectively fixedly connected to the inner side surface of the panel.

3. The elderly-assisting functional bed according to claim 2, characterized in that: The back plate assembly also includes a second connecting rod assembly and a steering gear, the upper end of the second connecting rod assembly is rotatably connected to the hinge joint, and the steering gear is drivingly connected to the lower end of the second connecting rod assembly; the second connecting rod assembly includes two cross rods, a plurality of first longitudinal rods, a plurality of driven rods, a plurality of second longitudinal rods, an active rod and at least one fixed rod, the two cross rods are arranged in parallel, and the end of the cross rod close to the second plate is provided with a first rotating hole adapted for the first push rod, and the first push rod is rotatably installed in the first rotating hole; the two ends of each of the first longitudinal rods are respectively rotatably connected to the two cross rods, and at least one of the plurality of driven rods is rotatably connected to the two cross rods. At least two of the two ends of the cross bar are rotatably connected to the two ends of the cross bar, a plurality of the driven rods are rotatably connected, both ends of each of the second longitudinal rods are rotatably connected to the ends of the corresponding driven rods, the hinge head is rotatably connected to the second longitudinal rod, the two ends of the active rod are rotatably installed on the two cross bars, one end of the active rod is internally provided with meshing teeth matched with the output end of the steering gear, the steering gear is meshed with the active rod, the fixed rod is triangular in shape, one of the bottom angles of the fixed rod is fixedly connected to the active rod, and the other two bottom angles of the fixed rod are rotatably connected to the driven rod.

4. The elderly-assisting functional bed according to claim 1, characterized in that: The backplane assembly also includes a base frame and a universal roller with a locking piece, the base frame is fixedly installed at the lower end of the bracket, and the universal roller is installed at the four bottom corners of the base frame; the base frame includes at least two cross beams and at least one longitudinal beam, multiple cross beams are arranged in parallel, and the two ends of the longitudinal beams are respectively fixedly connected to the cross beams, and the bracket is fixedly installed at the upper end of the cross beam.

5. The elderly-assisting functional bed according to claim 4, characterized in that: The lower end of the driving support member is fixedly connected to the base frame; the driving support member includes an electric push rod, a push plate and a column, the push plate is fixedly installed on the base frame, a groove is provided in the middle of the push plate, the column is fixedly installed in the groove, one end of the electric push rod is fixedly connected to the column, and the other end is fixedly connected to the first push rod.

6. The elderly-assisting functional bed according to claim 1, characterized in that: The second plate member includes a second single plate, a fixed plate, a rotating rod and a torsion spring. The two ends of the second single plate are respectively hinged to the first plate member and the foot plate assembly. The second single plate is provided with a second rotating hole adapted to the second push rod, and the second push rod is rotatably installed in the second rotating hole. The fixed plate is fixedly installed on the upper end of the bracket, one end of the rotating rod is rotatably connected to the fixed plate, and the other end of the rotating rod abuts against the lower end of the second single plate. The torsion spring is installed at one end of the second single plate hinged with the foot plate assembly, so that the foot plate assembly has a tendency to rotate toward the second single plate.

7. The elderly-assisting functional bed according to claim 1, characterized in that: The drive assembly also includes a bearing assembly and an end cover. The bearing assembly includes a tapered roller bearing and a thrust ball bearing. The tapered roller bearing is installed in the fixed seat so that the worm can be rotatably installed on the fixed seat; the thrust ball bearing is sleeved on the end of the worm, and the end cover is installed on the thrust ball bearing so that the worm wheel can be rotatably installed on the worm wheel seat.

8. The elderly-assisting functional bed according to claim 1, characterized in that: The foot plate assembly includes a third plate component, and the third plate component includes a third single plate and a pulling member. A plurality of through holes are evenly opened on the third single plate. The pulling member is fixedly installed on the lower end of the third single plate. A third rotating hole adapted to the third push rod is opened at one end of the pulling member away from the second plate component, and the third push rod is rotatably installed on the third rotating hole.

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