CN113230052A

CN113230052A - Auxiliary standing type intelligent old-age assisting device

Info

Publication number: CN113230052A
Application number: CN202011024361.1A
Authority: CN
Inventors: 康杰; 庄雨婷; 刘音; 王志远; 夏浩然; 卢刘锴; 刘广泽; 庄莹莹
Original assignee: Sanjiang University
Current assignee: Sanjiang University
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-08-10
Anticipated expiration: 2040-09-25
Also published as: CN113230052B

Abstract

The invention discloses an auxiliary standing type intelligent old-age assisting device which comprises a base, a motor and a speed reducer, wherein the motor and the speed reducer are both arranged on the base, the motor is connected with the speed reducer, a first gear is fixedly connected onto an output shaft of the speed reducer, a second gear is meshed with the top of the first gear, a rotating shaft is fixedly connected onto the second gear, two ends of the rotating shaft are rotatably connected with bearing seats, and the bearing seats are fixedly connected onto the base. The invention can enable the user to independently and autonomously carry out the safe conversion of the sitting posture without supporting assistance by other people except the user, on one hand, the time for monitoring the guardian of the user can be released to a certain extent, on the other hand, the invention gives the user great humanistic care.

Description

Auxiliary standing type intelligent old-age assisting device

Technical Field

The invention relates to the field of nursing of old people, in particular to an auxiliary standing type intelligent old-age assisting device.

Background

In recent years, with the continuous progress and development of society, the medical level is greatly improved and better medical services are gradually popularized, so that the service life of the whole population is continuously prolonged. In the proportion of the world population, the proportion of the elderly population is gradually increased, the aging trend of the population is deepened, and even a part of countries with developed capital meanings enter the aged society in the early period of the century. The increase of the population number of the old people can expand the demand of the old-age assistive device, and the multifunctional and intelligent demand of the old-age assistive device can be gradually improved.

The existing old-people assisting device does not have the function of assisting old people to stand, lacks an intelligent old-people assisting device with high economic and applicable cost performance and assisting to stand, urgently waits for a device capable of helping a user to independently and autonomously perform sitting posture safety conversion, and then other personnel except the user do not need to support the assisting device.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to solve the problems and designs an auxiliary standing old-assisting device with a simple structure, which has the function of safely and reliably assisting a user to perform the conversion from a flat sitting state to a standing state by a transplantable and refitted common wheelchair.

The technical scheme is as follows: the invention relates to an auxiliary standing type intelligent old-age assisting device which comprises a base, a motor and a speed reducer, wherein the motor and the speed reducer are both arranged on the base;

fixedly connected with swinging boom on the rotation axis, the swinging boom includes spring steel plate, first rotary rod and second rotary rod, spring steel plate's one end and rotation axis fixed connection, spring steel plate's the other end passes through damping pivot moment of torsion hinge and first rotary rod swing joint, first rotary rod is articulated with the second rotary rod, the top fixedly connected with seat of second rotary rod, the tip of second rotary rod passes through the hinge and is connected with the top rotation of base.

Preferably, the quantity of swinging boom is two, and the both sides of fixedly connected with rotation axis respectively are provided with the connecting rod between two swinging booms, the both ends of connecting rod respectively with first rotary rod fixed connection.

Preferably, still include draw-in groove formula bedpan slide rail, draw-in groove formula bedpan slide rail sliding connection has the bedpan, the draw-in groove formula bedpan slide rail passes through the connecting piece and installs on the base, the through-hole has been seted up on the seat, the through-hole is aimed at the bedpan, the through-hole is used for the user to defecate, swivelling joint closing plate on the through-hole.

Preferably, the bedpan comprises a buffer area and a storage area, wherein the buffer area is aligned with the through hole, the storage area is used for storing excrement of a user, the bottom of the storage area is communicated with a drainage pipe, and a drainage valve is arranged on the drainage pipe.

Preferably, the safety device further comprises a safety assembly, the safety assembly comprises two safety belts, one ends of the two safety belts are fixedly connected with the seat plate, the other end of one safety belt is fixedly connected with a first buckle, the other end of the other safety belt is fixedly connected with a second buckle, the first buckle and the second buckle can be detachably connected, and the first buckle and the second buckle are matched to enable the safety belts to tightly restrain a human body and reduce the motion tendency of the human body.

Preferably, the motor is an 86 stepping motor, and the reducer is a PLX planetary reducer.

Preferably, the base constitute by optical axis support, fluting aluminium alloy, three-dimensional angle groove connecting piece, two-dimentional angle groove connecting piece, T type nut, angle sign indicating number and aluminium system bottom plate, the motor is all installed on aluminium system bottom plate with slowing down.

Has the advantages that: 1. the invention can enable the user to independently and autonomously carry out the safe conversion of the sitting posture without supporting assistance by other people except the user, on one hand, the time for monitoring the guardian of the user can be released to a certain extent, on the other hand, the invention gives the user great humanistic care.

2. Through motor and speed reducer drive, drive first gear and second gear revolve, rethread revolving shaft transmission power to swinging boom, and the swinging boom holds in the palm and moves the seat and slowly upwards the lifting and accomplish the assistance and stand. Wherein the safety component on the seat plate can avoid accidental injury caused by unstable gravity center of a user when the output of the motor is unstable or the machine body shakes, and plays a role in protecting the human body when the user stands. The bedpan can effectively solve the problem that a user is inconvenient to go to the toilet, and the device is reliable, simple, easy to clean and replace.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of another embodiment of the present invention.

Fig. 3 is a perspective view of the power driving structure of the present invention.

Fig. 4 is a schematic perspective view of the bedpan of the present invention.

Fig. 5 is a schematic structural view of the invention installed on a wheelchair.

Fig. 6 is a schematic structural view of the invention installed on a wheelchair.

Fig. 7 is a schematic diagram of the posture conversion process when the human body is standing up.

Fig. 8 is a schematic diagram of a basic model of a human body.

FIG. 9 is a diagram showing the quantitative analysis of a basic model of a human body.

Fig. 10 is a schematic diagram of a human hip trajectory curve.

FIG. 11 is a schematic diagram of the basic model quantitative analysis of the human body according to the present invention.

FIG. 12 is a schematic diagram of the basic model quantitative analysis of the human body according to the present invention.

Fig. 13 is a schematic structural diagram of a safety assembly according to the present invention.

In the figure, 1-base, 2-motor, 3-speed reducer, 4-first gear, 5-second gear, 6-rotation shaft, 7-rotation arm, 701-spring steel plate, 702-first rotation rod, 703-second rotation rod, 8-damping rotation shaft torque hinge, 9-seat plate, 10-sealing plate, 11-hinge, 12-bedpan, 13-buffer zone, 14-storage zone, 15-clamping groove type bedpan slide rail; 16-connecting piece, 17-safety assembly, 18-wheelchair.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example (b): as shown in fig. 1-12, an assisted-standing old people assisting device comprises a power driving structure (a base 1, a motor 2, a speed reducer 3, a first gear 4 and a second gear 5), a push rod actuator (a rotating shaft 6 and a rotating arm 7), a toilet device (a clamping groove type bedpan sliding rail 15 and a bedpan 12) and a safety fixing structure (a safety component 17). The power driving structure drives the push rod executing mechanism through the transmission of the first gear and the second gear, the push rod executing mechanism drives the seat plate 9 to rotate, and then a user can convert the sitting posture into a standing posture, the toilet device is arranged above the power driving structure through the clamping groove type toilet bowl sliding rail and is connected with the base, and the safety component of the safety fixing device is connected with the seat plate above the toilet device, so that the fixation is finally realized.

Specifically, the power driving structure is shown in fig. 1-3, and includes a 86 stepping motor and a PLX planetary reducer, wherein the 86 stepping motor is used in cooperation with the PLX planetary reducer, the 86 stepping motor is fixed in a motor box in cooperation with the PLX planetary reducer through a half-round bolt and a nut, the power driving structure further includes a base 1 formed by combining a plurality of sections of grooved aluminum alloy materials, the base 1 includes a bracket aluminum plate, the motor box is mounted on the bracket aluminum plate, the 86 stepping motor rotates to drive the PLX planetary reducer to operate, a second gear 5 is meshed with the top of a first gear 4, a rotating shaft 6 is fixedly connected to the second gear 5, two ends of the rotating shaft 6 are rotatably connected to bearing seats, and the bearing seats are fixedly connected to the base 1, so that the structure is.

Fixedly connected with swinging boom 7 on rotation axis 6, swinging boom 7 includes spring steel plate 701, first rotary rod 702 and second rotary rod 703, spring steel plate 701's one end and rotation axis 6 fixed connection, spring steel plate 701's the other end passes through damping pivot moment of torsion hinge 8 and first rotary rod 702 swing joint, first rotary rod 702 is articulated with second rotary rod 703, the top fixedly connected with seat 9 of second rotary rod 703, the tip of second rotary rod 703 is passed through hinge 11 and is connected with the top rotation of base 1.

In this embodiment, the number of the rotating arms 2 is two, and the two rotating arms 7 are respectively fixedly connected with two sides of the rotating shaft 6, and a connecting rod is arranged between the two rotating arms, and two ends of the connecting rod are respectively fixedly connected with the first rotating rod 702.

The spring steel plate 701 is formed by overlapping a plurality of stages of spring steel sheets with different sizes, a middle fixing hole is fastened by using bolts and screws, and a plurality of spring steel sheets are wrapped by steel bar turns to play a role in auxiliary fixing

In this embodiment, preferably, the toilet further includes a slot type toilet slide rail 15, the slot type toilet slide rail 15 is slidably connected to the toilet 12, the slot type toilet slide rail 15 is installed on the base 1 through a connecting member 16, a through hole is opened on the seat plate 9, the through hole is aligned to the toilet 12, the through hole is used for defecation of a user, and the sealing plate 10 is rotatably connected to the through hole.

In this embodiment, preferably, the bedpan 12 comprises a buffer area 13 and a storage area 14, the buffer area 13 is aligned with the through hole, the storage area 14 is used for storing excrement of a user, the bottom of the storage area 14 is communicated with a drainage pipe, and a drainage valve is arranged on the drainage pipe.

In this embodiment, it is preferred, still include safety assembly 17, safety assembly 17 includes two safety belts, two the one end of safety belt all with seat fixed connection, the other end fixedly connected with buckle one of a safety belt, the other end fixedly connected with buckle two of another safety belt, buckle one with buckle two can be dismantled and be connected, buckle one with buckle two mutually supports makes the safety belt tighten the human body and reduces human motion trend.

This embodiment, it is preferred, base 1 constitute by optical axis support, fluting aluminium alloy, three-dimensional angle groove connecting piece, two-dimensional angle groove connecting piece, T type nut, angle sign indicating number and aluminium system bottom plate, the motor is all installed on aluminium system bottom plate with slowing down.

In use, motor 2 cooperation speed reducer 3 uses and drives first gear 4 and rotate, and first gear 4 drives second gear 5 and rotates, and second gear 5 drives rotation axis 6 and rotates, and second rotation axis 6 drives swinging boom 7 and rotates, and swinging boom 7 drives seat 9 and rotates, and then makes the human body convert the gesture of standing by sitting the gesture into, and wherein the concrete rotation process of swinging boom 7 is: the second rotating shaft 6 drives the spring steel plate 701 to rotate, the spring steel plate 701 drives the first rotating rod 702 to rotate, the first rotating rod 702 drives the second rotating rod 703 to rotate, and the second rotating rod 703 drives the seat 9 to rotate. And then can make the independent autonomic posture safety conversion of sitting of user, other personnel outside not needing the user support supplementary, the time of the guardian guardianship that will liberate the user to a certain extent on the one hand, on the other hand has given the user very big literary care, this embodiment low price in addition, it is intelligent high, the price/performance ratio is stronger than the product of the same type, can combine together with the wheelchair, realize the volume production, popularize on a large scale, remain to benefit to more users

In this embodiment, material selection and calculation are described, and in order to ensure that a human body can be stably converted from a sitting posture to a standing posture, the following material selection and mathematical and mechanical calculation are performed.

According to the practical requirement, the movement track of the aging aid device in the embodiment has to fit the hip track of the sitting up of a normal human body. Based on the consideration, firstly, the rationality of the design of the wheelchair auxiliary device is ensured, and secondly, the comfort and the safety of the user when using the device are ensured. See fig. 7, which shows the posture transformation process when the human body is erected.

From the standing characteristic of the human body, for the convenience of calculation, a basic model of the human body is established, as shown in fig. 8, and the model is roughly divided into three limbs and three joints, namely a trunk, a thigh, a shank, a hip joint, a knee joint and an ankle joint, from the change condition of the posture. From the above figure, it can be seen that the human body standing includes not only the rising of the limbs and the movement of the center, but also the rotation of the joint angle, and based on this, the simplified model quantification is continued to analyze the human body standing process, see fig. 9.

As identified in fig. 9, the lengths and weights of the human torso, thigh, and calf are labeled as L1, L2, L3, m1, m2, m3, respectively; homogenizing hip joint, knee joint and ankle joint into mass points k (Xk, Kk), q (Xq, Kq) and h (Xh, Kh); defining the activity range of each joint as ≤ 1, < 2, < 3, the general activity range of the hip joint is 75 ° -90 °, the general activity range of the knee joint is 100 ° -180 °, and the general activity range of the ankle joint is 90 ° -110 °; let the centroids of the trunk, thigh, and calf be a (Xa, Ka), b (Xb, Kb), and c (Xc, Kc), respectively, and the distances of the centroids to the next joint be d1, d2, and d 3.

The trajectory of the joint can then be approximated, as shown in the following equation.

Defining the joint angle function as:

∠i＝θ(t)＝a+b[1-cos(c*t)] (3-1)

wherein a, b and c are undetermined coefficients.

The formula 3-1 has three parameters, and the result can be solved by only three equations. Assuming that there are n pieces of data, and grouping these pieces of joint data into [ θ (1), θ (n/2), θ (n) ], [ θ (2), θ (n/2), θ (n-1) ], [ θ (3), θ (n/2), θ (n-2) ], [ θ (n/2-1), θ (n/2), θ (n/2+1) ], where n is an even number; if n is odd number, theta (n/2) is changed to theta [ (n +1)/2) ], each group of data can obtain a group of solutions, which are set as theta i' (t), and the order is given

The fitting function of the joint is pi_imin as a fitting function.

The approximate fitting functions of the hip joint, the knee joint and the ankle joint can be obtained by following the method:

and (3) obtaining an approximate fitting function, substituting the approximate fitting function into the length of each limb to obtain an actual joint angle function:

both sides of the above formula are simultaneously divided by l₂Obtaining:

and then adding the squares of the above formula to obtain:

the same can be obtained:

for finding theta₁The following can be calculated:

wherein X_refThe horizontal coordinate of the acting point of the sole zero moment (resultant force) is represented, and the value range is 30-50 mm.

To sum up, if the ankle point h is defined as the origin of coordinates, the final hip trajectory equation is:

according to a human sitting posture size data table in a reference related document, MATLAB is used for simulating a track curve, wherein the first, second and third are human hip track curves with the heights of 180cm, 175cm and 170cm respectively, and the detailed description is shown in an attached figure 10.

For more accurate calculation, an AB rod is 350mm according to the hip track of a human body, a BC rod is 150mm by combining the sitting depth of a human body with approximately 450mm, the AB rod is used as a quasi-parallelogram structure, opposite sides are certainly not the same in length, the side width of the popular wheelchair is considered, a CD rod and an AD rod are respectively 310mm and 190mm, and the AD rod is regarded as a horizontal rod. The CD rod is used as a power rod, and the D point is still connected with a motor. A simple mechanical quantitative analysis of this structure is then made:

degree of freedom: f ═ 3 × 3-2 × 4 ═ 1 (3-12)

The mechanism only needs one motor. FIG. 11 is a schematic design diagram of the present invention.

As noted in the torque analysis chart of FIG. 12, the power provided by the motor at point D is transmitted through the CD rod and is actually finally applied to the CB rod in the direction from point C to point B, i.e., the force F_CBThe rotation center is D point and the vertical distance is L₂(ii) a G is the weight of the human body, the weight of the shank is removed, the weight accounts for about 16 percent of the weight of the human body, and the maximum load of 100Kg is required by the designThe actual value of G is approximately 840N, the point A is taken as a rotation center, and the moment arm is L₁And only relates to the actual sitting depth, according to experience, the sitting depth of normal adults is about 450mm, and considering that the whole wheelchair also has a pedal, L is₁A value of 350mm, then

Required torque: t is_α＝F_CB×L₂＝G_{Human being}×L₁＝840N×350mm＝294Nm (3-13)

In view of the manufacturing difficulty and cost, the invention adopts a motor drive.

It can be seen from the above calculations that the torque generated by the motor drive alone is far from sufficient, so the transmission is divided into three stages, one stage being the base torque T provided by the motor_{Base of}The second stage is to generate a primary torque increase T through a speed reducer_ReducingThe third stage is a transmission mechanism for connecting the speed reducer and the rotating shaft and generating a secondary increased final torque T_{Final (a Chinese character of 'gan')}。

Then the formula can be obtained: t is_{Final (a Chinese character of 'gan')}＝T_{Base of}i_Reducingη_Reducingi_{Conveying appliance}η_{Conveying appliance}＞T_{Need to} (3-14)

Wherein i_Reducing-the speed ratio of the speed reducer;

η_reducing-the transmission efficiency of the reducer;

i_{conveying appliance}-the speed ratio of the transmission;

η_{conveying appliance}-the transmission efficiency of the transmission mechanism;

the final torque is obtained by the primary increase of the speed reducer and the secondary increase of the transmission mechanism through the basic torque provided by the motor, which is analyzed by the formulas 3 to 14. This adopts and just pushes away the thinking, and the basic moment of torsion of frame motor at first, static moment, then selects suitable speed reducer and drive mechanism through the machinery manual, considers the characteristic of motor in the market, and the bigger is the static moment the bigger is corresponding motor volume more, required power is also bigger, this will lead to the installation space not enough, so the static moment T who temporarily limits the motor_{Base of}The selection range is approximately 10-15 Nm, and then a proper transmission ratio i is selected_Reducing、i_{Conveying appliance}And mechanical efficiency eta_Reducing、η_{Conveying appliance}To meet the final requirements.

The executive component of the sitting mechanism is a direct current motor which provides power source for the sitting mechanism. Through the above framing, if a load needs to be driven, a reasonable motor cannot be directly selected and matched, which also proves the assumption in the overall scheme that the speed and the distance are reduced and increased through a speed reduction and transmission mechanism. The following list shows the comparison between the advantages and disadvantages of several types of motors, see table 1:

TABLE 1

By comparison of the table, the characteristics of the sitting-up mechanism are considered, the precision requirement is not high, the sitting-up mechanism is safe and comfortable, the sitting-up mechanism does not work continuously for a long time, the required requirements are that the rated torque of the motor is large, the installation space is relatively small, but a subsequent speed reducing and transmission mechanism is also provided, a stepping motor is considered and the static torque is 12Nm, because the working voltage of the static torque which reaches more than ten and several newton meters generally reaches more than 110 volts, the auxiliary device is obviously unsuitable only for the auxiliary device, and the corresponding volume and weight can be increased, so that the auxiliary device cannot be supported by a common wheelchair at all, and the cost is not negligible. Overview the driver of the present invention is selected from a stepper, and since various types of stepper motors have their drivers adapted thereto, the driver of the present invention is selected from a driver that is compatible with the stepper.

The matching condition of the speed reducer is that the rated torque of the speed reducer is more than or equal to the rated torque of the motor multiplied by the reduction ratio and the efficiency, and then the speed reducer should meet two basic conditions by combining the output shaft diameter of the motor in the foregoing description: firstly, the input aperture of the speed reducer is 14 mm; second, T after moment increase of speed reducer_Reducing＝T_{Base of}i_Reducingη_Reducing≥T_{Need to}. Therefore, four speed reducers, such as a harmonic speed reducer, a worm gear speed reducer, a planetary speed reducer and the like, are selected, but only the planetary speed reducer is optimal from the practical situation. The reason is as follows:

for the harmonic reducer, although the basic conditions are relatively satisfied, the purchase cost is actually too high.

For a worm gear speed reducer, basic conditions are met, although efficiency is low, the transmission ratio can be large, and unfortunately, the installation space is not met.

For a gear reducer, if the gear ratio is desired to be large, its physical size and weight must be large. The gear ratio and the gear tooth number are hooked, the gear diameter is influenced by the tooth number, and even if the gear is in multi-stage transmission, the manufactured speed reducer is inevitably large and heavy, and the installation requirement cannot be met.

The planetary reducer not only meets basic conditions, but also can ensure relatively small volume and quality under the condition of large reduction ratio, and has high efficiency although the price is slightly higher.

Therefore, the PLX planetary reducer is selected finally.

Since the transmission is the last torque increase, the actual torques for the first two steps are first calculated:

torque at output end of speed reducer is equal to torque of motor, and reduction ratio of speed reducer is equal to efficiency of speed reducer

Namely T_Reducing＝T_{Base of}i_Reducingη_ReducingWherein the torque T of the motor_{Base of}Is 12Nm, speed ratio i of speed reducer_ReducingFrom the above, it can be seen that 16, the reduction gear efficiency is 0.94

Theoretical torque: t is_Reducing＝12×16×0.94＝180Nm (3-15)

However, the actual situation is far from such a large situation, because the actual static torque of the stepping motor may only reach 10Nm, so the actual distance increase can be understood as follows:

actual torque: t is_Reducing＝10×16×0.94＝150Nm＜162Nm (3-16)

The output torque of the speed reducer is smaller than the rated torque, so that the type of the speed reducer is consistent.

However, the actual torque far does not reach the required torque, so that the design of the transmission mechanism not only needs to consider the problems of stability, efficiency and the like, but also mainly needs the size of the transmission ratio to carry out secondary torque increase.

By the formula T_{Final (a Chinese character of 'gan')}＝T_Reducingi_{Conveying appliance}η_{Conveying appliance}＝150·i_{Conveying appliance}η_{Conveying appliance}＞T_{Need to}294Nm can understand i_{Conveying appliance}η_{Conveying appliance}The product of (a) is at least greater than 2, so the transmission ratio of the transmission is not very large. According to the advantage and disadvantage comparison of the transmission types, firstly, the worm and gear transmission is considered, and because the output form of the speed reducer is determined to be the shaft output and the diameter of the output shaft is 22mm, the worm is correspondingly in the hole input form, but no accessory directly meeting the requirements is available on the market, autonomous design and processing are needed, the design is completely unnecessary, the design difficulty is improved, and the manufacturing cost is greatly higher, so that the worm and gear transmission is temporarily not used. Secondly, looking at the chain transmission and the belt transmission, the two forms have no difference, and the most important is the size and the tightening problem of the transmission wheel, and the tightening device also raises the unnecessary design requirement, so the tightening device is not used. The transmission mode is determined to be straight-tooth cylindrical gear transmission, the efficiency of the transmission mode is very high and is approximately 0.9-0.99, special customization is not needed, two gears can be meshed with each other, so that a small cam is arranged on an output shaft of the speed reducer, the speed reducer is safe, reliable and easy to fasten, and secondary moment-increasing transmission can be formed by matching the small cam with a corresponding large gear.

Turning over a mechanical manual and surveying the market, if the aperture of a 22mm output shaft of the reducer is required to be met, only 2 moulds with 25 teeth of small cams on the market can be selected, and then i is considered_{Conveying appliance}η_{Conveying appliance}The product of (a) is at least greater than 2, i.e. the number of teeth of the gearwheel is at least greater than 55, but for reliability the final torque should be increased appropriately, i.e. the number of teeth of the gearwheel should be slightly greater than i_{Conveying appliance}Enlarged, so a 2 die 65 tooth bull gear, i.e. i, is selected to mate with a small cam_{Conveying appliance}2.6, the meshing efficiency of the two gears reaches 0.94, namely eta_{Conveying appliance}0.94. Obviously i_{Conveying appliance}η_{Conveying appliance}The product of (d) is greater than 2. The small cam and the large gear described below are only the first gear and the second gear.

The specific parameters of the small cam and the large gear are respectively shown in tables 2-1 and 2-1.

TABLE 2-1 Small cam parameters

TABLE 2-2 Large Gear parameters

And again according to formula 3-14T_{Final (a Chinese character of 'gan')}＝T_{Base of}i_Reducingη_Reducingi_{Conveying appliance}η_{Conveying appliance}＞T_{Need to}294Nm, as described above, T_{Base of}＝10Nm、i_Reducing＝16、η_Reducing＝0.94、i_{Conveying appliance}＝2.6、η_{Conveying appliance}When the value is 0.94, the substitution can obtain:

T_{final (a Chinese character of 'gan')}＝10×16×0.94×2.6×0.94＝367Nm＞T_{Need to}＝294Nm

I.e. meets the requirements.

And finishing the material selection and calculation description part of the auxiliary standing type intelligent old-fashioned aid.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An auxiliary standing type intelligent old-age assisting device is characterized by comprising a base, a motor and a speed reducer, wherein the motor and the speed reducer are both arranged on the base;

2. The intelligent auxiliary standing aging device as claimed in claim 1, wherein the number of the rotating arms is two, the two rotating arms are fixedly connected with two sides of the rotating shaft respectively, a connecting rod is arranged between the two rotating arms, and two ends of the connecting rod are fixedly connected with the first rotating rod respectively.

3. The intelligent assistant for aging of claim 2, further comprising a slot-type bedpan slide rail, wherein the slot-type bedpan slide rail is mounted on the base through a connector, the slot-type bedpan slide rail is slidably connected with a bedpan, the seat plate is provided with a through hole, the through hole is aligned with the bedpan, the through hole is used for defecation of a user, and the through hole is rotatably connected with the sealing plate.

4. The intelligent assisted-standing-type device of claim 3, wherein the bedpan comprises a buffer area and a storage area, the buffer area is aligned with the through hole, the storage area is used for storing excrement of a user, the bottom of the storage area is communicated with a drainage pipe, and a drainage valve is arranged on the drainage pipe.

5. The intelligent auxiliary standing aging device as claimed in claim 1, further comprising a safety assembly, wherein the safety assembly comprises two safety belts, one end of each of the two safety belts is fixedly connected with the seat plate, the other end of one safety belt is fixedly connected with a first buckle, the other end of the other safety belt is fixedly connected with a second buckle, the first buckle and the second buckle can be detachably connected, and the first buckle and the second buckle cooperate to enable the safety belts to tighten the human body to reduce the tendency of human movement.

6. The intelligent assistant for aging of claim 1, wherein the motor is a 86 stepping motor, and the reducer is a PLX planetary reducer.

7. The intelligent auxiliary standing aging aid as claimed in claim 1, wherein the base is composed of an optical axis bracket, a slotted aluminum profile, a three-dimensional corner groove connecting piece, a two-dimensional corner groove connecting piece, a T-shaped nut, a corner brace and an aluminum bottom plate, and the motor and the speed reducer are both mounted on the aluminum bottom plate.