CN112057248A

CN112057248A - Intelligent old-people-assisting wheelchair

Info

Publication number: CN112057248A
Application number: CN202010883001.0A
Authority: CN
Inventors: 刘文慧; 李英杰; 彭鑫玮; 邹靖凯; 万鸿嘉; 姬孟珂; 胡志伟
Original assignee: Xian Polytechnic University
Current assignee: Xian Polytechnic University
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2020-12-11

Abstract

The invention discloses an intelligent old-age assisting wheelchair, which comprises an upper layer frame and a lower layer frame, wherein the lower layer frame is fixedly provided with a seat plate overturning lead screw sliding table and a controller through an iron plate B; the operation platform is connected with a Programmable Logic Controller (PLC) in the controller, and the operation platform controls the running process of the wheelchair by controlling the running of the stepping motor through the controller; press from both sides tight handrail after fixing good old man, the operation panel drives through controller control lifting lead screw slip table and antedisplacement lead screw slip table and presss from both sides tight handrail and accomplish the action of standing, and the operation panel drives the bedplate upset through controller control bedplate upset lead screw slip table simultaneously, guarantees that old man assists in-process buttock, armpit, knee multiple spot atress of standing makes whole supplementary process of standing safe and stable.

Description

Intelligent old-people-assisting wheelchair

Technical Field

The invention belongs to the technical field of medical auxiliary tools, and particularly relates to an intelligent old-age assisting wheelchair.

Background

At present, the degree of ageing in China is high, the cardinality of empty nesters is large, the self-care capability of the old is poor, most wheelchairs in the market cannot help the old to realize standing actions, nursing is difficult, and the like. Therefore, aiming at the condition that most of the existing wheelchairs are insufficient in function, the intelligent old-people-assisting wheelchair which is easy to control and low in price, can assist the old to stand and move in position to the greatest extent and reduce the nursing difficulty of guardians has certain necessity and certain market value.

Disclosure of Invention

The invention aims to provide an intelligent old-age assisting wheelchair, which solves the problems of inconvenient use and insufficient functions of the existing wheelchairs.

The invention adopts the technical scheme that the intelligent old-age assisting wheelchair comprises an upper layer frame and a lower layer frame;

the upper layer frame comprises a horizontally arranged U-shaped frame, E-shaped frames are welded on two sides of the U-shaped frame respectively, openings of the E-shaped frames on two sides of the U-shaped frame are opposite and coplanar with the U-shaped frame, and the closed end of the U-shaped frame is connected with two parallel backrest support rods; a backrest plate is welded between the two backrest supports, and the backrest plate and the U-shaped frame form an obtuse angle; a seat board is laid between the two sides of the U-shaped frame; the E-shaped frame is also provided with a lifting mechanism respectively, the lifting mechanism is connected with clamping handrails respectively, and the clamping handrails at two sides are positioned at the upper part of the seat board and are arranged oppositely;

the lower-layer frame comprises a U-shaped frame A parallel to the U-shaped frame in the vertical direction, the opening of the U-shaped frame is opposite to that of the U-shaped frame A, the U-shaped frame is connected with the U-shaped frame A through a plurality of vertical hollow square steel pipes, the vertical hollow square steel pipes are perpendicular to the U-shaped frame and the U-shaped frame A, two horizontal hollow square steel pipes are arranged between two side edges of the U-shaped frame A in parallel and perpendicular to two side edges of the U-shaped frame A, an iron plate A is laid on the surface of the U-shaped frame A, two universal wheels are respectively arranged at the bottom parts of two side ends of a closed end of the U-shaped frame A, and two sides of an open end of the U-shaped; the iron plate is also provided with a controller, the controller internally comprises a Programmable Logic Controller (PLC), the PLC is connected with a plurality of stepper motor drivers, and the stepper motors are respectively connected with the stepper motor drivers.

The invention is also characterized in that:

the knee protection device comprises a U-shaped frame, a knee protection beam, a bolt hole, a round hole, 2 knee protection sponge blocks and a knee protection sponge block, wherein the opening end of the U-shaped frame is further connected with the knee protection beam, one end of the knee protection beam is hinged with one side of the opening end of the U-shaped frame, the other end of the knee protection beam is provided with the bolt hole, the other side of the opening end of the U-shaped frame is provided;

wherein, the surface of the back board is evenly provided with a plurality of small holes;

wherein elevating system concrete structure includes: two lifting lead screw sliding tables are respectively arranged in gaps between the U-shaped frame and the E-shaped frames on the two sides, the lifting lead screw sliding tables on the two sides of the U-shaped frame are fixedly connected through a U-shaped plate, the two lifting lead screw sliding tables are parallel and vertical to the U-shaped frame, and the two lifting lead screw sliding tables are both connected with a sliding block B matched with the two lifting lead screw sliding tables; a forward movement lead screw sliding table is further arranged between the two lifting lead screw sliding tables, two ends of the forward movement lead screw sliding table are respectively connected with a sliding block B of the two lifting lead screw sliding tables, the forward movement lead screw sliding table is perpendicular to the two lifting lead screw sliding tables, the forward movement lead screw sliding table is connected with a sliding block C matched with the forward movement lead screw sliding table, and a clamping handrail is fixedly connected to the sliding block C;

the lifting screw rod sliding table comprises a base A, a motor fixing plate A is fixed at one end of the base A, the other end of the base A is fixedly connected with a screw rod stabilizing plate A with a bearing, one end, close to the motor fixing plate A, of the base A is fixedly connected with a long L-shaped screw rod stabilizing plate with a bearing, an end plate of the long L-shaped screw rod stabilizing plate with a bearing is perpendicular to the base A, a screw rod B penetrates through the long L-shaped screw rod stabilizing plate and is fixed on the bearing of the screw rod stabilizing plate A, a sliding block B is sleeved on the screw rod B, the lifting screw rod sliding table further comprises an optical axis B parallel to the screw rod B, and the optical axis B penetrates through the sliding block B and is fixed between; a stepping motor B is arranged on the motor fixing plate A, the screw rod B is connected with the stepping motor B through a coupler, and the stepping motor B is connected with a stepping motor driver in the controller; one end face of the long L-shaped screw rod stabilizing plate connecting screw rod B is coplanar with the E-shaped frame and is positioned in the frame of the E-shaped frame, an iron plate B is further laid on the E-shaped frame close to the U-shaped frame, and the iron plate B is fixedly connected with the long L-shaped screw rod stabilizing plate through bolts;

the device comprises a forward lead screw sliding table, a motor fixing plate B, a stepping motor C, a lead screw stabilizing plate B with a bearing, a lead screw stabilizing plate A with a bearing, a lead screw C which is arranged on the surface of the base B and is parallel to the base B, a slide block C which is sleeved on the lead screw C, two optical axes C which are parallel to the lead screw C, two optical axes C which are positioned on two sides of the lead screw C, and an optical axis C which penetrates through the slide block C and the L-shaped lead screw stabilizing plate A and is fixed between the lead screw stabilizing plate B and the motor fixing plate B, wherein the slide block B is fixedly connected with the base B through a bolt; the screw rod C is connected with a stepping motor C through a coupler, and the stepping motor C is connected with a stepping motor driver in the controller;

the sliding block C is connected with an L-shaped plate A, the sliding block C is embedded into a corner of the L-shaped plate A, a telescopic rod shell is welded on the upper surface of the L-shaped plate A, which is far away from the E-shaped frame, an elastic adjusting groove is formed in the surface of the telescopic rod shell, and a plurality of clamping grooves are uniformly formed in one side of the elastic adjusting groove; a telescopic rod parallel to the tightness adjusting groove is arranged in the telescopic rod shell, the telescopic rod comprises a hollow round iron rod, the round iron rod extends out of the telescopic rod shell and extends towards the inner side of the wheelchair, a round iron sheet is fixedly connected to one end, extending out of the telescopic rod shell, of the round iron rod, a spring is arranged in the hollow part of the telescopic rod, and two ends of the spring are respectively connected with the round iron rod and one end, far away from the round iron sheet, of the telescopic rod shell; the round iron rod is welded with a telescopic rod control handle, and the telescopic rod control handle extends out of the telescopic rod shell to be matched with a plurality of clamping grooves in the tightness adjusting groove;

the telescopic rod penetrates through the bottom of the clamping handrail, and a round iron sheet of the telescopic rod is fixedly attached to the clamping handrail in a welding mode;

the clamping handrail is also provided with an operation table through a buckle, the operation table is connected with a Programmable Logic Controller (PLC) in the controller, and the clamping handrail is also wrapped with sponge;

the universal wheel comprises a U-shaped frame A, a universal wheel, a stepping motor, a driving wheel, a shaft coupling, a driving shaft, a U-shaped frame A, a universal wheel and a universal wheel, wherein an iron plate is welded at one end of the U-shaped frame A, which is far away from the universal wheel, two ends of the iron plate are respectively connected with an L-shaped plate, one end of the L-shaped plate is overlapped with the iron plate and is connected with the iron plate through a bolt; the vertical bearing seat is fixed with the U-shaped frame A through bolts; the transmission shaft is sleeved with a brake hoop at a position close to the coupler, one end of the backrest support rod far away from the bottom plate is also provided with a brake handle, and the brake hoop and the brake handle are connected through a thin steel wire rope;

wherein one end of the seat board far away from the backrest board is hinged with two sides of the U-shaped frame, and a hinged seat A is also arranged on the central line of the seat board far away from the backrest board;

a seat plate overturning lead screw sliding table is fixed at one end, close to the iron plate, of the iron plate A through bolts and is parallel to two sides of the U-shaped frame A, and the seat plate overturning lead screw sliding table corresponds to and is parallel to the center line of the seat plate; the base plate overturning lead screw sliding table comprises a base, one end of the base is fixedly connected with a motor fixing plate, a stepping motor A is arranged on the motor fixing plate, the other end of the base is fixedly connected with a lead screw stabilizing plate with a bearing, the position, close to the motor fixing plate, of the base is fixedly connected with an L-shaped lead screw stabilizing plate with a bearing, the base further comprises a lead screw A which is positioned on the base and is parallel to the base, the lead screw A is fixed on the lead screw stabilizing plate and the L-shaped lead screw stabilizing plate, a sliding block A is sleeved on the lead screw A, the base further comprises two optical axes A which are parallel to the lead screw A, the two optical axes A penetrate through the sliding block A and the L-shaped lead screw stabilizing plate and; one end of the screw rod A is connected with a stepping motor A through a coupler, and the stepping motor A is connected with a stepping motor driver in the controller; the welding has articulated seat B on the slider A, and articulated seat B is articulated to be connected through the connecting plate with articulated seat A.

The invention has the beneficial effects that:

according to the intelligent old-person-assisting wheelchair, the base plate can be used for effectively matching the overturning screw rod sliding table, the lifting screw rod sliding table and the forward moving screw rod sliding table, so that the old can stand by assistance, the safety and stability of the auxiliary standing process are ensured, and the working strength of a guardian is reduced; a plurality of universal wheels are arranged at the bottom of the wheelchair, so that the wheelchair is flexible to turn, and meanwhile, the operating console is convenient for the old to control the wheelchair.

Drawings

FIG. 1 is an overall effect diagram of an intelligent old-age assisting wheelchair of the invention;

FIG. 2 is an effect diagram of a wheelchair frame and a backrest of the intelligent old-fashioned wheelchair of the invention;

FIG. 3 is an effect diagram of a control part and a driving part of a wheelchair of the intelligent old-age-assisting wheelchair of the invention;

FIG. 4 is a partially enlarged view of the driving part of the wheelchair of the intelligent old-fashioned wheel chair according to the invention;

FIG. 5 is an effect diagram of a turning part of a wheelchair seat plate of the intelligent old-fashioned wheel chair of the invention;

FIG. 6 is an effect diagram of a seat plate overturning screw rod sliding table of the intelligent old-assisting wheelchair of the invention;

FIG. 7 is an effect diagram of the wheelchair lifting part and the forward moving part of the intelligent old-fashioned wheel chair of the invention;

FIG. 8 is an effect diagram of a lifting screw rod sliding table of the intelligent old-fashioned wheel chair of the present invention;

FIG. 9 is an enlarged effect diagram of a fixing position of a lifting screw rod sliding table and a frame of the intelligent old-age assisting wheelchair;

FIG. 10 is a diagram illustrating the effect of the installation of the forward screw rod and the sliding table of the intelligent old-fashioned wheel chair;

FIG. 11 is an overall effect diagram of a clamping part of the intelligent old-fashioned wheelchair of the invention;

FIG. 12 is a partial enlarged view of the clamping part of the intelligent wheelchair for helping the aged;

FIG. 13 is a partial enlarged view II of the clamping part of the intelligent wheelchair for helping the aged;

FIG. 14 is a perspective view of the inside of the telescopic rod of the intelligent old-fashioned wheel chair.

In the figure, 1-1. safety bolt, 1-2. knee-pad beam, 1-3. knee-pad sponge block;

2-1. U-shaped frame, 2-2. E-shaped frame, 2-3. U-shaped frame A, 2-4. horizontal hollow square steel tube, 2-5. vertical hollow square steel tube, 2-6. backrest support rod, 2-7. brake handle, 2-8. backrest plate, 2-9. iron plate;

3-1, iron plates A, 3-2, universal wheels, 3-3, a controller, 3-4, a storage battery and 3-5, a stepping motor;

4-1, an L-shaped plate, 4-2, a vertical bearing seat, 4-3, a transmission shaft, 4-4, a brake hoop and 4-5, a driving wheel;

5-1, 5-2, 5-3, 5-4, turning over a screw rod sliding table by the seat plate;

6-1, a hinged seat B, 6-2, a base, 6-3, a motor fixing plate, 6-4, a screw rod stabilizing plate, 6-5, an L-shaped screw rod stabilizing plate, 6-6, an optical axis A, 6-7, a sliding block A, 6-8, a stepping motor A, 6-9 and a screw rod A;

7-1, lifting the screw rod sliding table, 7-2, advancing the screw rod sliding table, and 7-3, using a U-shaped plate;

8-1, a base A, 8-2, a motor fixing plate A, 8-3, a long L-shaped screw rod stabilizing plate, 8-4, a screw rod B, 8-5, a sliding block B, 8-6, a stepping motor B, 8-7, an optical axis B, 8-8 and the screw rod stabilizing plate A;

9-1, iron plate B;

10-1, a base B, 10-2, a motor fixing plate B, 10-3, a screw rod stabilizing plate B, 10-4, an L-shaped screw rod stabilizing plate A, 10-5, a screw rod C, 10-6, a sliding block C, 10-7, an optical axis C, 10-8 and a stepping motor C;

11-1, clamping the handrail, 11-2, operating the console;

12-1, a telescopic rod control handle, 12-2, a telescopic rod shell and 12-3, buckles;

13-1 parts of an elastic degree adjusting groove, 13-2 parts of a telescopic rod and 13-3 parts of an L-shaped plate A;

14-1 parts of spring, 14-2 parts of round iron rod and 14-3 parts of round iron sheet.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The invention provides an intelligent old-age assisting wheelchair, which is structurally shown in figures 1 and 2 and comprises an upper layer frame and a lower layer frame, wherein the upper layer frame is formed by welding E-shaped frames 2-2 at two sides of a U-shaped frame 2-1, the lower layer frame is formed by welding 2 horizontal hollow square steel tubes 2-4 in the middle of a U-shaped frame A2-3, and the U-shaped frame A2-3 is divided into a front area, a middle area and a rear area by the horizontal hollow square steel tubes 2-4; a vertical hollow square steel tube 2-5 is arranged between the U-shaped frame 2-1 and the U-shaped frame A2-3, one end of the vertical hollow square steel tube 2-5 is welded with a boundary point of an upper area of the U-shaped frame A2-3, the other end of the vertical hollow square steel tube 2-5 is welded with a crossing point of the U-shaped frame 2-1 and the E-shaped frame 2-2, namely, the connecting point of the horizontal hollow square steel tube 2-4 and the U-shaped frame A2-3 and the connecting point of the vertical hollow square steel tube 2-5 and the U-shaped frame A2-3 are the same point; the rear ends of two sides of the U-shaped frame 2-1 are welded and fixed with one end of a backrest support rod 2-6, one end of the backrest support rod 2-6 is provided with a brake handle 2-7, a backrest plate 2-8 is welded between the backrest support rods 2-6, and the backrest plate 2-8 is a thin iron plate with a plurality of small holes; one side of the front end of the U-shaped frame 2-1 is hinged with one end of the knee-pad beam 1-2, and the other side of the front end of the U-shaped frame 2-1 is fixed with the other end of the knee-pad beam 1-2 through a safety bolt 1-1; the safety bolt 1-1 penetrates through the knee-pad cross beam 1-2 and is inserted into the U-shaped frame 2-1 for fixing, and the old can connect the safety bolt 1-1 by using a rope, directly pull the rope to pull out the safety bolt 1-1 after the old stands in an auxiliary mode, open the knee-pad cross beam 1-2 and move conveniently; 2 knee pad sponge blocks 1-3 are arranged on the knee pad beam 1-2, the knee pad sponge blocks 1-3 can move on the knee pad beam 1-2, and the knee pad sponge blocks 1-3 ensure that the knee caps of the old are stressed and comfortable in the process of assisting standing and do not tilt forward;

as shown in fig. 3 and 4, an iron plate A3-1 is welded in the front of one surface of a U-shaped frame a2-3 close to the U-shaped frame 2-1 and in the middle area, universal wheels 3-2 are respectively welded at four ends of the other surface of the U-shaped frame a2-3 close to the front area, and iron plates 2-9 are welded at the rear area of one surface of the U-shaped frame a2-3, which is welded with the universal wheels 3-2; a controller 3-3 and a storage battery 3-4 are respectively arranged on two sides of the rear area of the iron plate A3-1, a Programmable Logic Controller (PLC) and a plurality of stepping motor drivers are arranged in the controller 3-3, and the storage battery 3-4 can supply power for the Programmable Logic Controller (PLC) and the plurality of stepping motor drivers in the controller 3-3; the two sides of the iron plate 2-9, which are close to the rear end of the U-shaped frame A2-3, are fixed with an L-shaped plate 4-1 through bolts, the other side of the L-shaped plate 4-1 is fixed with a stepping motor 3-5 through bolts, the stepping motor 3-5 is driven by a stepping motor driver in a controller 3-3, the stepping motor 3-5 is connected with a transmission shaft 4-3 through a coupler, the transmission shaft 4-3 is connected with a driving wheel 4-5 through a flat key through a vertical bearing seat 4-2 with a bearing, and the driving wheel 4-5 realizes the driving steering of the wheelchair through the rotation speed difference of 2 stepping motors 3-5; the vertical bearing seat 4-2 is fixed with the lower layer frame through bolts; the transmission shaft 4-3 is sleeved with a brake hoop 4-4 at a position close to the coupler, the brake hoop 4-4 is connected with a brake handle 2-7 through a thin steel wire rope, and the brake handle 2-7 enables the brake hoop 4-4 to tightly hold the transmission shaft 4-3 through the thin steel wire rope to realize braking.

As shown in fig. 5 and 6, the U-shaped frame 2-1 is hinged with the hinged seats 5-2 at the front positions of the two sides of the seat plate 5-1 through hinged bolts, and the hinged seat A5-3 is fixed at the front position of the center of the seat plate 5-1; the middle of the rear area of the iron plate A3-1 is fixed with a seat plate turnover screw rod sliding table 5-4 through bolts; the seat plate overturning lead screw sliding table 5-4 comprises a base 6-2, one end of the base 6-2 is fixedly connected with a motor fixing plate 6-3, the other end of the base 6-2 is fixedly connected with a lead screw stabilizing plate 6-4 with a bearing, the position, close to the motor fixing plate 6-3, of the base 6-2 is fixedly connected with an L-shaped lead screw stabilizing plate 6-5 with a bearing, a lead screw A6-9 is fixed on the lead screw stabilizing plate 6-4 and the L-shaped lead screw stabilizing plate 6-5, a sliding block A6-7 is sleeved on the lead screw A6-9, and an optical axis A6-6 penetrates through the sliding block A6-7 and the L-shaped lead screw stabilizing plate 6-5 to be fixed between the lead screw stabilizing plate 6-4 and the motor; a part of the screw A6-9 penetrates through the L-shaped screw stabilizing plate 6-5 to be connected with a stepping motor A6-8 fixed on the motor fixing plate 6-3 through a coupler, and the stepping motor A6-8 is driven by a stepping motor driver in the controller 3-3; a hinge seat B6-1 is welded on the sliding block A6-7, and two ends of the connecting plate are respectively hinged with the hinge seat B6-1 and the hinge seat A5-3; the stepping motor A6-8 drives the hinged seat B6-1 on the sliding block A6-7 to move back and forth through the lead screw A6-9, the back and forth movement of the hinged seat B6-1 is converted into the overturning action of the seat plate 5-1 through the connecting plate, and the seat plate 5-1 is overturned to ensure that the hip stress of the old is increased in comfort in the auxiliary standing process.

As shown in fig. 7, 8, 9 and 10, 4 lifting screw rod sliding tables 7-1 are arranged between the U-shaped frame 2-1 and the E-shaped frame 2-2; the lifting screw rod sliding table 7-1 comprises a base A8-1, one end of the base A8-1 is fixedly connected with a motor fixing plate A8-2, the other end of the base A8-1 is fixedly connected with a screw rod stabilizing plate A8-8 with a bearing, a long L-shaped screw rod stabilizing plate 8-3 with a bearing is fixedly connected with the base A8-1 close to a motor fixing plate A8-2, a screw rod B8-4 is fixed on the screw rod stabilizing plate A8-8 and the long L-shaped screw rod stabilizing plate 8-3, a slide block B8-5 is sleeved on the screw rod B8-4, and an optical axis B8-7 penetrates through the slide block B8-5 and the long L-shaped screw rod stabilizing plate 8-3 and is fixed between the screw rod stabilizing plate A8-8 and the motor fixing plate A8-2; one part of the screw rod B8-4 penetrates through the long L-shaped screw rod stabilizing plate 8-3 to be connected with a stepping motor B8-6 fixed on a motor fixing plate A8-2 through a coupler, and the stepping motor B8-6 is driven by a stepping motor driver in the controller 3-3; the long L-shaped screw rod stabilizing plate 8-3 and the base A8-1 are just clamped between the U-shaped frame 2-1 and the E-shaped frame 2-2, meanwhile, the long L-shaped screw rod stabilizing plate 8-3 is fixedly connected with the iron plate B9-1 through bolts, and the iron plate B9-1 is fixedly connected with the U-shaped frame 2-1 and the E-shaped frame 2-2 through bolts; the tops of the 4 lifting screw rod sliding tables 7-1 are fixedly connected by U-shaped plates 7-3.

The sliding block B8-5 is fixedly connected with a base B10-1 of the forward lead screw sliding table 7-2 through a bolt, the stepping motor B8-6 drives the sliding block B8-5 to vertically move through the lead screw B8-4, and the sliding block B8-5 vertically moves to drive the forward lead screw sliding table 7-2 to vertically move; one end of a base B10-1 is fixedly connected with a motor fixing plate B10-2, the other end of the base B10-1 is fixedly connected with a lead screw stabilizing plate B10-3 with a bearing, the position, close to a motor fixing plate B10-2, of the base B10-1 is fixedly connected with an L-shaped lead screw stabilizing plate A10-4 with a bearing, a lead screw C10-5 is fixed on the lead screw stabilizing plate B10-3 and the L-shaped lead screw stabilizing plate A10-4, a sliding block C10-6 is sleeved on the lead screw C10-5, and an optical axis C10-7 penetrates through the sliding block C10-6 and the L-shaped lead screw stabilizing plate A10-4 to be fixed between the lead screw stabilizing plate B10-3 and the motor fixing plate B10-; a part of the screw rod C10-5 penetrates through the L-shaped screw rod stabilizing plate A10-4 to be connected with a stepping motor C10-8 fixed on a motor fixing plate B10-2 through a coupler, and the stepping motor C10-8 is driven by a stepping motor driver in the controller 3-3.

As shown in fig. 11, 12, 13 and 14, a slide block C10-6 is fixedly connected with an L-shaped plate a13-3 through a bolt; the stepping motor C10-8 drives the sliding block C10-6 to move back and forth through the lead screw C10-5, and the sliding block C10-6 moves back and forth to drive the L-shaped plate A13-3 to move back and forth; an expansion link shell 12-2 is welded on the L-shaped plate A13-3, and an elasticity adjusting groove 13-1 is formed in the expansion link shell 12-2; a telescopic rod 13-2 is arranged in the telescopic rod shell 12-2, the telescopic rod 13-2 is formed by welding a round iron sheet 14-3 and a round iron rod 14-2 with a hollow end, a spring 14-1 is arranged in the hollow part of the telescopic rod 13-2, and two ends of the spring 14-1 are respectively contacted with the telescopic rod 13-2 and the telescopic rod shell 12-2; a telescopic rod control handle 12-1 is welded at the hollow part end of the telescopic rod 13-2, the telescopic rod control handle 12-1 can move in the tightness adjusting groove 13-1 to adjust the position of the telescopic rod 13-2, and the spring 14-1 ensures that the telescopic rod control handle 12-1 is clamped and fixed in the tightness adjusting groove 13-1; the telescopic rod 13-2 penetrates through the bottom of the clamping handrail 11-1, and the round iron sheet 14-3 of the telescopic rod 13-2 is fixedly attached to the clamping handrail 11-1 in a welding mode; the telescopic rod 13-2 is moved and positioned to drive the clamping handrail 11-1 to move and position, and the clamping handrail 11-1 is moved and positioned to ensure that the armpits of the old are effectively clamped and stressed in the standing process; the back-and-forth movement of the L-shaped plate A13-3 is transferred to be converted into the back-and-forth movement of the clamping handrail 11-1 through the telescopic rod 13-2; the clamping handrail 11-1 is fixed with the operating platform 11-2 through a buckle 12-3, and sponge is wrapped on the clamping handrail 11-1.

Wherein, the operation platform 11-2 is connected with a programmable logic controller PLC in the controller 3-3, and the operation platform 11-2 controls the running of the stepping motor 3-5 through the controller 3-3 to realize the control of the running process of the wheelchair; after the old people are fixed by the clamping handrail 11-1, the operation table 11-2 controls the lifting screw rod sliding table 7-1 and the advancing screw rod sliding table 7-2 to drive the clamping handrail 11-1 to complete standing actions through the controller 3-3, and simultaneously the operation table 11-2 controls the seat plate overturning screw rod sliding table 5-4 to drive the seat plate 5-1 to overturn through the controller 3-3, so that the hip, the armpit and the knee are stressed at multiple points in the process of assisting the old people to ensure that the whole process of assisting the old people to stand is safe and stable.

Claims

1. An intelligent old-age-assisting wheelchair is characterized by comprising an upper-layer frame and a lower-layer frame;

the upper-layer frame comprises a horizontally arranged U-shaped frame (2-1), E-shaped frames (2-2) are welded on two sides of the U-shaped frame (2-1) respectively, openings of the E-shaped frames (2-2) on two sides of the U-shaped frame (2-1) are opposite and coplanar with the U-shaped frame (2-1), and a closed end of the U-shaped frame (2-1) is connected with two parallel backrest support rods (2-6); a backrest plate (2-8) is welded between the two backrest support rods (2-6), and the backrest plate (2-8) and the U-shaped frame (2-1) are arranged at an obtuse angle; a seat board (5-1) is laid between the two sides of the U-shaped frame (2-1); the E-shaped frame (2-2) is also provided with a lifting mechanism respectively, the lifting mechanism is connected with clamping handrails (11-1) respectively, and the clamping handrails (11-1) at the two sides are positioned at the upper part of the seat board (5-1) and are arranged oppositely;

the lower-layer frame comprises a U-shaped frame A (2-3) parallel to the U-shaped frame (2-1) in the horizontal direction, the opening of the U-shaped frame (2-1) is opposite to that of the U-shaped frame A (2-3), the U-shaped frame (2-1) and the U-shaped frame A (2-3) are connected through a plurality of vertical hollow square steel tubes (2-5), the vertical hollow square steel tubes (2-5) are perpendicular to the U-shaped frame (2-1) and the U-shaped frame A (2-3), two horizontal hollow square steel tubes (2-4) are arranged between two side edges of the U-shaped frame A (2-3) in parallel, the horizontal hollow square steel tubes (2-4) are perpendicular to the two side edges of the U-shaped frame A (2-3), an iron plate A (3-1) is laid on the surface of the U-shaped frame A (2-3), two universal wheels (3-2) are respectively arranged at the bottoms of the two sides of the closed end of the U-shaped frame A (2-3), and the two sides of the open end of the U-shaped frame A (2-3) are respectively connected with driving wheels (4-5) through stepping motors (3-5); the iron plate A (3-1) is further provided with a controller (3-3), the controller (3-3) internally comprises a Programmable Logic Controller (PLC), the Programmable Logic Controller (PLC) is connected with a plurality of stepping motor drivers, and the stepping motors (3-5) are respectively connected with the stepping motor drivers.

2. The intelligent old-people assisting wheelchair as claimed in claim 1, wherein the open end of the U-shaped frame (2-1) is further connected with a knee-pad beam (1-2), one end of the knee-pad beam (1-2) is hinged to one side of the open end of the U-shaped frame (2-1), the other end of the knee-pad beam (1-2) is provided with a bolt hole, the other side of the open end of the U-shaped frame (2-1) is provided with a round hole matched with the bolt hole at the end of the knee-pad beam (1-2), and the knee-pad beam (1-2) is further movably sleeved with 2 knee-pad sponge blocks (1-3).

3. The intelligent wheelchair as claimed in claim 1, wherein the backboard (2-8) has a plurality of holes uniformly formed on the surface.

4. The intelligent old-age-assisting wheelchair as claimed in claim 1, wherein the lifting mechanism comprises: two lifting lead screw sliding tables (7-1) are respectively arranged in a gap between the U-shaped frame (2-1) and the E-shaped frames (2-2) at two sides, the lifting lead screw sliding tables (7-1) at two sides of the U-shaped frame (2-1) are fixedly connected through a U-shaped plate (7-3), the two lifting lead screw sliding tables (7-1) are parallel and vertical to the U-shaped frame (2-1), and the two lifting lead screw sliding tables (7-1) are both connected with a sliding block B (8-5) matched with the two lifting lead screw sliding tables; a forward lead screw sliding table (7-2) is further arranged between the two lifting lead screw sliding tables (7-1), two ends of the forward lead screw sliding table (7-2) are respectively connected with a sliding block B (8-5) of the two lifting lead screw sliding tables (7-1), the forward lead screw sliding table (7-2) is perpendicular to the two lifting lead screw sliding tables (7-1), the forward lead screw sliding table (7-2) is connected with a sliding block C (10-6) matched with the forward lead screw sliding table, and a clamping handrail (11-1) is fixedly connected to the sliding block C (10-6).

5. The intelligent old-age-assisting wheelchair as claimed in claim 4, wherein the lifting lead screw sliding table (7-1) comprises a base A (8-1), one end of the base A (8-1) is fixed with a motor fixing plate A (8-2), the other end of the base A (8-1) is fixedly connected with a lead screw stabilizing plate A (8-8) with a bearing, one end of the base A (8-1) close to the motor fixing plate A (8-2) is fixedly connected with a long L-shaped lead screw stabilizing plate (8-3) with a bearing, the end plate with a bearing of the long L-shaped lead screw stabilizing plate (8-3) is perpendicular to the base A (8-1), a lead screw B (8-4) penetrates through the long L-shaped lead screw stabilizing plate (8-3) and is fixed on the bearing of the lead screw stabilizing plate A (8-8), and a sliding block B (8-5) is sleeved on the lead screw B (8-4), the device also comprises an optical axis B (8-7) parallel to the screw rod B (8-4), wherein the optical axis B (8-7) penetrates through the sliding block B (8-5) and the long L-shaped screw rod stabilizing plate (8-3) and is fixed between the screw rod stabilizing plate A (8-8) and the motor fixing plate A (8-2); a stepping motor B (8-6) is arranged on the motor fixing plate A (8-2), the screw rod B (8-4) is connected with the stepping motor B (8-6) through a coupler, and the stepping motor B (8-6) is connected with a stepping motor driver in the controller (3-3); one end face of the long L-shaped screw rod stabilizing plate (8-3) connected with the screw rod B (8-4) is coplanar with the E-shaped frame (2-2) and is positioned in the frame of the E-shaped frame (2-2), an iron plate B (9-1) is further laid at the position, close to the U-shaped frame (2-1), of the E-shaped frame (2-2), and the iron plate B (9-1) is fixedly connected with the long L-shaped screw rod stabilizing plate (8-3) through bolts.

6. The intelligent old-age-assisting wheelchair as claimed in claim 5, wherein the forward lead screw sliding table (7-2) comprises a base B (10-1), a sliding block B (8-5) is fixedly connected with the base B (10-1) of the forward lead screw sliding table (7-2) through bolts, one end of the base B (10-1) is fixedly connected with a motor fixing plate B (10-2), a stepping motor C (10-8) is arranged on the motor fixing plate B (10-2), the other end of the base B (10-1) is connected with a lead screw stabilizing plate B (10-3) with a bearing, an L-shaped lead screw stabilizing plate A (10-4) with a bearing is fixedly connected with the position of the base B (10-1) close to the motor fixing plate B (10-2), and the intelligent old-age-assisting wheelchair further comprises a lead screw C (10-5) which is arranged on the surface of the base B (10-1) and is parallel to the base B, the screw C (10-5) is sleeved with a sliding block C (10-6) and further comprises two optical axes C (10-7) parallel to the screw C (10-5), the two optical axes C (10-7) are located on two sides of the screw C (10-5), and the optical axes C (10-7) penetrate through the sliding block C (10-6) and the L-shaped screw stabilizing plate A (10-4) and are fixed between the screw stabilizing plate B (10-3) and the motor fixing plate B (10-2); the screw rod C (10-5) is connected with the stepping motor C (10-8) through a coupler, and the stepping motor C (10-8) is connected with a stepping motor driver in the controller (3-3).

7. The intelligent old-age-assisting wheelchair as claimed in claim 6, wherein an L-shaped plate A (13-3) is connected to the slider C (10-6), the slider C (10-6) is embedded into a corner of the L-shaped plate A (13-3), a telescopic rod shell (12-2) is welded on the upper surface of the L-shaped plate A (13-3) far away from the E-shaped frame (2-2), a tightness adjusting groove (13-1) is formed in the surface of the telescopic rod shell (12-2), and a plurality of clamping grooves are uniformly formed in one side of the tightness adjusting groove (13-1); a telescopic rod (13-2) parallel to the tightness adjusting groove (13-1) is arranged in the telescopic rod shell (12-2), the telescopic rod (13-2) comprises a hollow round iron rod (14-2), the round iron rod (14-2) extends out of the telescopic rod shell (12-2) and extends towards the inner side of the wheelchair, one end, extending out of the telescopic rod shell (12-2), of the round iron rod (14-2) is also fixedly connected with a round iron sheet (14-3), a spring (14-1) is arranged in the hollow part of the telescopic rod (13-2), and two ends of the spring (14-1) are respectively connected with the round iron rod (14-2) and one end, far away from the round iron sheet (14-3), of the telescopic rod shell (12-2); the telescopic rod control handle (12-1) is welded on the round iron rod (14-2), and the telescopic rod control handle (12-1) extends out of the telescopic rod shell (12-2) to be matched with a plurality of clamping grooves in the tightness adjusting groove (13-1);

the telescopic rod (13-2) penetrates through the bottom of the clamping handrail (11-1), and the round iron sheet (14-3) of the telescopic rod (13-2) is attached to and welded with the clamping handrail (11-1).

8. The intelligent old-age-assisting wheelchair as claimed in claim 1, wherein the clamping armrest (11-1) is further provided with an operating table (11-2) through a buckle (12-3), the operating table (11-2) is connected with a Programmable Logic Controller (PLC) in the controller (3-3), and the clamping armrest (11-1) is further wrapped with sponge.

9. The intelligent old-helping wheelchair as claimed in claim 1, wherein an iron plate (2-9) is welded at one end of the U-shaped frame A (2-3) far away from the universal wheel (3-2), two ends of the iron plate (2-9) are respectively connected with an L-shaped plate (4-1), one end of the L-shaped plate (4-1) is overlapped with the iron plate (2-9) and connected through a bolt, the other end of the L-shaped plate (4-1) is fixedly connected with a stepping motor (3-5) through a bolt, the stepping motor (3-5) is connected with a transmission shaft (4-3) through a coupling, and the transmission shaft (4-3) is connected with a driving wheel (4-5) through a vertical bearing seat (4-2) with a bearing through a flat key; the vertical bearing seat (4-2) is fixed with the U-shaped frame A (2-3) through bolts; the transmission shaft (4-3) is sleeved with a brake hoop (4-4) at a position close to the coupler, one end of the backrest support rod (2-6) far away from the bottom plate (5-1) is also provided with a brake handle (2-7), and the brake hoop (4-4) is connected with the brake handle (2-7) through a thin steel wire rope.

10. The intelligent wheelchair as claimed in claim 9, wherein one end of the seat plate (5-1) far away from the backrest plate (2-8) is hinged with two sides of the U-shaped frame (2-1), and a hinged seat a (5-3) is further arranged on the center line of the seat plate (5-1) far away from the backrest plate (2-8);

one end of the iron plate A (3-1), which is close to the iron plate (2-9), is fixedly provided with a seat plate turnover screw rod sliding table (5-4) through bolts, the seat plate turnover screw rod sliding table (5-4) is parallel to two sides of the U-shaped frame A (2-3), and the seat plate turnover screw rod sliding table (5-4) corresponds to and is parallel to the center line of the seat plate (5-1); the seat plate overturning lead screw sliding table (5-4) comprises a base (6-2), one end of the base (6-2) is fixedly connected with a motor fixing plate (6-3), a stepping motor A (6-8) is arranged on the motor fixing plate (6-3), the other end of the base (6-2) is fixedly connected with a lead screw stabilizing plate (6-4) with a bearing, an L-shaped lead screw stabilizing plate (6-5) with a bearing is fixedly connected to the position, close to the motor fixing plate (6-3), of the base (6-2), the base further comprises a lead screw A (6-9) which is positioned on the base (6-2) and is parallel to the base (6-2), the lead screw A (6-9) is fixed on the lead screw stabilizing plate (6-4) and the L-shaped lead screw stabilizing plate (6-5), and a sliding block A (6-7) is sleeved on the lead screw A (6, the lead screw fixing device further comprises two optical axes A (6-6) parallel to the lead screw A (6-9), the two optical axes A (6-6) penetrate through the sliding block A (6-7) and the L-shaped lead screw stabilizing plate (6-5) and are fixed between the lead screw stabilizing plate (6-4) and the motor fixing plate (6-3), and the lead screw A (6-9) is located between the two optical axes A (6-6); one end of the screw rod A (6-9) is connected with a stepping motor A (6-8) through a coupler, and the stepping motor A (6-8) is connected with a stepping motor driver in the controller (3-3); the slider A (6-7) is welded with a hinged seat B (6-1), and the hinged seat B (6-1) is hinged with the hinged seat A (5-3) and connected through a connecting plate.