CN113230052B - A standing-assisted intelligent elderly care device - Google Patents

Abstract

The invention discloses an auxiliary standing type intelligent elderly assistance device, which includes a base, a motor and a reducer. The motor and the reducer are both installed on the base. The motor is connected to the reducer, and a first gear is fixedly connected to the output shaft of the reducer. , the top of the first gear meshes with the second gear, the second gear is fixedly connected with a rotating shaft, both ends of the rotating shaft are rotationally connected to the bearing seat, and the bearing seat is fixedly connected to the base. The invention enables the user to safely switch between sitting and standing postures independently without the need for support and assistance from other personnel other than the user. On the one hand, it will free up the user's guardian time to a certain extent, and on the other hand, it will give the user It has great humanistic care. In addition, the invention is low in price, highly intelligent, and more cost-effective than similar products. It can be combined with wheelchairs to achieve mass production and popularize on a large scale, which can benefit more users.

Description

A standing-assisted intelligent elderly care device

Technical field

The invention relates to the field of nursing care for the elderly, and is specifically an intelligent assistive device for assisting the elderly in standing.

Background technique

In recent years, with the continuous progress and development of society, the medical level has been greatly improved and better medical services have gradually become popular, which has led to the continuous improvement of the average life expectancy. In the proportion of the world's population, the proportion of the elderly population is gradually increasing, and the trend of population aging is deepening. What's more, some capitalist developed countries have gradually entered "aging societies" at the beginning of this century. As the number of elderly people increases, the demand for assistive devices for the elderly will increase, and the requirements for multifunctional and intelligent devices for assisting the elderly will also gradually increase.

Existing elderly assistance devices do not have the function of assisting the elderly to stand, and there is a lack of an economical and cost-effective intelligent assistance device for assisting the elderly to stand. There is an urgent need for a device that can help users safely switch between sitting and standing postures independently, and then not A device that requires support and assistance from someone other than the user.

Contents of the invention

Purpose of the invention: In order to solve the above problems, the purpose of the present invention is to design a simple structure of a stand-assisting device for the elderly, which has the function of being transplantable and modified into an ordinary wheelchair to safely and reliably assist the user in transitioning from a flat sitting position to a standing position. .

Technical solution: an auxiliary standing type intelligent elderly assistance device according to the present invention, including a base, a motor and a reducer. The motor and the reducer are both installed on the base. The motor is connected to the reducer, and the reducer is connected to the base. A first gear is fixedly connected to the output shaft, a second gear is engaged with the top of the first gear, a rotating shaft is fixedly connected to the second gear, and both ends of the rotating shaft are rotationally connected to the bearing seats. The bearing seat is fixedly connected to the base;

A rotating arm is fixedly connected to the rotating shaft. The rotating arm includes a spring steel plate, a first rotating rod and a second rotating rod. One end of the spring steel plate is fixedly connected to the rotating shaft, and the other end of the spring steel plate is damped. The rotating shaft torque hinge is movably connected to the first rotating rod, the first rotating rod is hinged to the second rotating rod, the top of the second rotating rod is fixedly connected with a seat plate, and the end of the second rotating rod is hinged to The top of the base pivots to connect.

Preferably, there are two rotating arms, each of which is fixedly connected to both sides of the rotating shaft. A connecting rod is provided between the two rotating arms, and both ends of the connecting rod are fixedly connected to the first rotating rod.

Preferably, it also includes a slotted bedpan slide rail, the slotted bedpan slide rail is slidingly connected to the toilet bowl, the slotted bedpan slide rail is installed on the base through a connecting piece, and the seat plate is provided with a through hole. , the through hole is aligned with the bedpan, the through hole is used for the user to defecate, and the sealing plate is rotatably connected to the through hole.

Preferably, the bedpan includes a buffer area and a storage area, the buffer area is aligned with the through hole, the storage area is used to store user excreta, the bottom of the storage area is connected to a discharge pipe, and a discharge pipe is provided on the discharge pipe. valve.

Preferably, it also includes a safety component. The safety component includes two safety belts. One end of the two safety belts is fixedly connected to the seat board. The other end of one safety belt is fixedly connected with a buckle and the other one. The other end of the safety belt is fixedly connected with buckle two. The buckle one and the buckle two can be detachably connected. The buckle one and the buckle two cooperate to make the safety belt tighten the human body and reduce the movement of the human body. trend.

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

Preferably, the base is composed of an optical axis bracket, a slotted aluminum profile, a three-dimensional angle slot connector, a two-dimensional angle slot connector, a T-shaped nut, an angle code and an aluminum base plate. The motor and speed reducer are both installed on the aluminum base plate. on the base plate.

Beneficial effects: 1. The present invention enables users to safely switch between sitting and standing postures independently without the need for support and assistance from other personnel other than the user. On the one hand, it will free up the user's guardian time to a certain extent, and on the other hand, it will free up the user's guardian time to a certain extent. It provides users with great humanistic care. In addition, the invention is low in price, highly intelligent, and more cost-effective than similar products. It can be combined with wheelchairs to achieve mass production and be popularized on a large scale, which can benefit more users. By.

2. Driven by the motor and reducer, the first gear and the second gear are driven to rotate, and then the force is transmitted to the rotating arm through the rotating shaft. The rotating arm supports the seat plate and slowly lifts upward to complete assisted standing. Among them, the safety components on the seat board can prevent accidental injuries caused by unstable motor output or body vibration, and the user's center of gravity is unstable, and protect the human body when standing. The bedpan can effectively solve the user's inconvenience problem when going to the toilet, and the device is reliable, simple and easy to clean and replace.

Description of the drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention.

Figure 2 is a schematic three-dimensional structural diagram of the present invention from another perspective.

Figure 3 is a schematic three-dimensional view of the power drive structure of the present invention.

Figure 4 is a schematic three-dimensional structural diagram of the bedpan of the present invention.

Figure 5 is a schematic structural diagram of the present invention installed on a wheelchair.

Figure 6 is a schematic structural diagram of the present invention installed on a wheelchair.

Figure 7 is a schematic diagram of the posture transformation process when the human body stands up.

Figure 8 is a schematic diagram of the basic model of the human body.

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

Figure 10 is a schematic diagram of the human hip trajectory curve.

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

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

Figure 13 is a schematic structural diagram of the safety component of the present invention.

In the drawing, 1-base, 2-motor, 3-reducer, 4-first gear, 5-second gear, 6-rotating shaft, 7-rotating arm, 701-spring steel plate, 702-first rotating rod , 703-second rotating rod, 8-damping shaft torque hinge, 9-seat plate, 10-sealing plate, 11-hinge, 12-potty, 13-buffer area, 14-storage area, 15-card slot potty slide Rail; 16-connection piece, 17-safety component, 18-wheelchair.

Detailed ways

The technical solution of the present invention will be described in detail below through the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

Embodiment: As shown in Figure 1-12, an assistive standing device for the elderly includes a power drive structure (base 1, motor 2, reducer 3, first gear 4 and second gear 5), push rod execution Mechanism (rotating shaft 6 and rotating arm 7), toilet device (slotted toilet bowl slide 15 and toilet bowl 12) and safety fixing structure (safety component 17). The power drive structure drives the push rod actuator through the first gear and the second gear transmission. The push rod actuator drives the seat plate 9 to rotate, thereby allowing the user to convert from a sitting posture to a standing posture. The toilet device slides through the slotted toilet bowl. The rail is placed above the power drive structure and connected to the base. The safety component of the safety fixation device is connected to the seat plate on the toilet device, and is finally fixed.

Specifically, the power drive structure is shown in Figure 1-3, which includes an 86 stepper motor and a PLX planetary reducer. The 86 stepper motor is used with the PLX planetary reducer. The 86 stepper motor is used with the PLX planetary reducer. Semi-round head bolts and nuts are fixed in the motor box, which also includes a base 1 composed of a multi-section slotted aluminum alloy material. The base 1 includes a bracket aluminum plate. The motor box is installed on the bracket aluminum plate. The 86 stepper motor rotates to drive the PLX planetary deceleration. When the machine is running, the top of the first gear 4 is meshed with the second gear 5, and the second gear 5 is fixedly connected to a rotating shaft 6. Both ends of the rotating shaft 6 are rotationally connected to the bearing seats, and the bearing seats are fixedly connected to the base 1 to make its structure stable and reliable.

A rotating arm 7 is fixedly connected to the rotating shaft 6. The rotating arm 7 includes a spring steel plate 701, a first rotating rod 702 and a second rotating rod 703. One end of the spring steel plate 701 is fixedly connected to the rotating shaft 6, so The other end of the spring steel plate 701 is movably connected to the first rotating rod 702 through the damping shaft torque hinge 8. The first rotating rod 702 is hinged to the second rotating rod 703. The top of the second rotating rod 703 is fixedly connected with a seat. plate 9, the end of the second rotating rod 703 is rotationally connected to the top of the base 1 through the hinge 11.

In this embodiment, the number of the rotating arms 7 is two, which are fixedly connected to both sides of the rotating shaft 6 respectively. A connecting rod is provided between the two rotating arms 7, and the two ends of the connecting rod are respectively connected to the first The rotating rod 702 is fixedly connected.

Among them, the spring steel plate 701 is composed of multiple levels of spring steel sheets of different sizes. The middle fixing holes are fastened with bolts and screws, and multiple spring steel sheets are wrapped with turns of steel bars to assist in fixing.

This embodiment preferably also includes a slotted bedpan slide rail 15, which is slidably connected to the toilet bowl 12. The slotted bedpan slide rail 15 is installed on the base 1 through a connector 16. , the seat plate 9 is provided with a through hole, the through hole is aligned with the toilet bowl 12, the through hole is used for the user to defecate, and the sealing plate 10 is rotatably connected to the through hole.

In this embodiment, preferably, the bedpan 12 includes 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 to store user excrement. The bottom of the storage area 14 is connected to the excretion. pipe, and a drain valve is provided on the drain pipe.

This embodiment preferably also includes a safety component 17. The safety component 17 includes two safety belts, one end of the two safety belts is fixedly connected to the seat board, and the other end of one safety belt is fixedly connected with a clip. Buckle one, the other end of the other safety belt is fixedly connected with buckle two. The buckle one and the buckle two can be detachably connected. The buckle one and the buckle two cooperate to make the safety belt tight. Bundle the human body and reduce the tendency of human movement.

In this embodiment, preferably, the base 1 is composed of an optical axis bracket, a slotted aluminum profile, a three-dimensional angle slot connector, a two-dimensional angle slot connector, a T-shaped nut, an angle code and an aluminum bottom plate. The motor and speed reducer All mounted on an aluminum base plate.

In use, the motor 2 cooperates with the reducer 3 to drive the first gear 4 to rotate, the first gear 4 drives the second gear 5 to rotate, the second gear 5 drives the rotating shaft 6 to rotate, the rotating shaft 6 drives the rotating arm 7 to rotate, and the rotating arm 7 drives the seat plate 9 to rotate, thereby converting the human body from a sitting posture to a standing posture. The specific rotation process of the rotating arm 7 is: the rotating shaft 6 drives the spring steel plate 701 to rotate, and the spring steel plate 701 drives the first rotating rod 702 to rotate. The rotating rod 702 drives the second rotating rod 703 to rotate, and the second rotating rod 703 drives the seat 9 to rotate. This enables the user to safely switch between sitting and standing postures independently without the need for support and assistance from other people other than the user. On the one hand, it will free up the user's guardian time to a certain extent, and on the other hand, it will give the user a great deal of security. Great humanistic care. In addition, this embodiment is low in price, highly intelligent, and more cost-effective than similar products. It can be combined with wheelchairs to achieve mass production and be popularized on a large scale, waiting to benefit more users.

In this embodiment, the material selection and calculation instructions are as follows. In order to ensure that the human body can stably transform from a sitting posture to a standing posture, the following material selection and mathematical mechanics calculations are made.

According to practical requirements, the motion trajectory of the elderly assistance device in this embodiment must fit the hip trajectory of a normal human body when sitting up. Based on this consideration, one is to ensure the rationality of the design of the wheelchair assistive device, and the other is to ensure the user's comfort and safety when using the device. See Figure 7, which shows the posture transformation process when the human body stands up.

From the perspective of the characteristics of the human body standing up, in order to facilitate calculations, a basic model of the human body is established, as shown in Figure 8. From the changes in posture, the model is roughly divided into three limbs and three joints, namely the trunk, thighs, and calves. , hip, knee and ankle joints. As can be seen from the above figure, the standing up of the human body includes not only the rise of the limbs, the movement of the center, but also the rotation of the joint angles. Based on this, we will continue to simplify the model to quantitatively analyze the standing process of the human body, as shown in Figure 9.

As shown in Figure 9, the length and weight of the human trunk, thigh, and calf are marked as L1, L2, L3, m1, m2, and m3 respectively; the hip joint, knee joint, and ankle joint are homogenized into mass points k (Xk, Kk) , q(Xq, Kq), h(Xh, Kh); define the range of motion of each joint as ∠1, ∠2, ∠3, and the approximate range of motion of the hip joint is 75°~90°, and the approximate range of motion of the knee joint is 100°~180°, and the approximate range of motion of the ankle joint is 90°~110°; assuming that the centers of mass of the trunk, thighs, and calves are a(Xa, Ka), b(Xb, Kb), and c(Xc, Kc) respectively, And the distances between each center of mass and the next joint are d1, d2, and d3.

Then the trajectory of the joint can be approximately planned, and the equation is as follows.

Define the joint angle function form as:

∠i＝θ(t)＝a+b[1-cos(c*t)] (3-1)

Among them, a, b, c are all undetermined coefficients.

Equation 3-1 has three parameters, and only three equations are needed to solve the result. Suppose there are n pieces of data, and these joint data are grouped 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)], when n is an even number; if n is an odd number, replace θ(n/2) with θ[(n+1)/2)], and each set of data can calculate a set of Solution, let the solution be θi'(t), let

The fitting function of the joint is the fitting function of Π _i min.

Following the above method, the approximate fitting functions of the hip joint, knee joint, and ankle joint can be obtained:

After obtaining the approximate fitting function, substitute the length of each limb to obtain the actual joint angle function:

Divide both sides of the above equation by l ₂ to get:

Then square the above equations and add them together to get:

In the same way, we can get:

As for finding θ ₁ , it can be calculated:

Among _them ,

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

According to the human body sitting size data table in the relevant literature, MATLAB is used to simulate the trajectory curve. ①, ②, and ③ are the human hip trajectory curves with heights of 180cm, 175cm, and 170cm respectively. See Figure 10 for details.

For a more accurate calculation, take the AB rod 350mm based on the trajectory of the human hip, combined with the person's sitting depth of approximately 450mm, and take the BC rod 150mm. As a quasi-parallelogram structure, the opposite sides are definitely not the same length. Consider the side width of a mass wheelchair. Take the CD rod and AD rod to be 310mm and 190mm respectively, and the AD rod is regarded as a horizontal rod. Rod CD can be used as a power rod, and point D is still connected to the motor. Next, a simple mechanical quantitative analysis of this structure is performed:

Degree of freedom: F＝3×3-2×4＝1 (3-12)

Explain that this mechanism only requires one motor. Figure 11 is a schematic diagram of the design of the present invention.

According to the torque analysis diagram in Figure 12, the power provided by the motor at point D is transmitted through rod CD. In fact, it is finally supported on rod CB. The direction is from point C to point B, that is, force F _CB , and the center of rotation is D. point, the vertical distance is L ₂ ; and G is the human gravity, excluding the mass of the calf, which accounts for about 16% of the human body mass. The design requires a maximum load of 100Kg, so the actual value of G is approximately 840N, and point A is used as the center of rotation , the moment arm is L ₁ , and is only related to the actual sitting depth. According to experience, the sitting depth of a normal adult is approximately 450mm. Considering the overall wheelchair and foot pedals, the value of L ₁ is 350mm, then

Required torque: T _need = F _CB × L ₂ = G _people × L ₁ = 840N × 350mm = 294Nm (3-13)

Considering the manufacturing difficulty and cost, the present invention adopts a motor drive.

It can be seen from the above calculation that the torque generated by the motor drive alone is far from enough, so the transmission is divided into three levels. The first level is the basic torque T _base provided by the motor, and the second level is an increase in torque T _base generated by the reducer. , the third stage is the transmission mechanism that connects the reducer and the rotating shaft and generates a secondary increase in the final torque T _end .

Then we _can get the formula: T _terminal = T _basis i _minus eta minus i _transfer eta _transfer > T _needs (3-14)

Where i _minus - the speed ratio of the reducer;

eta _minus - the transmission efficiency of the reducer;

i _transmission - the speed ratio of the transmission mechanism;

eta _transmission - the transmission efficiency of the transmission mechanism;

According to the analysis of Equation 3-14, the final torque is obtained by the basic torque provided by the motor through the primary increase of the reducer and the secondary increase of the transmission mechanism. This time, we adopt the idea of forward thrust. We first define the basic torque of the motor, that is, the static torque, and then select the appropriate reducer and transmission mechanism through the mechanical manual. Taking into account the characteristics of the motors on the market, the greater the static torque, the larger the volume of the corresponding motor, so the size of the motor will be larger. The greater the power required, which will lead to insufficient installation space, so the static torque T _base selection range of the motor is temporarily limited to roughly 10~15Nm, and then the appropriate transmission ratio i _reduction , i _transmission and mechanical efficiency eta _reduction , eta are selected. _{came to} satisfy the last request.

The actuator of the sitting mechanism is a DC motor, which provides a power source. Through the above framework, if you need to drive a load, you cannot directly select a reasonable motor. This also confirms the assumption in the overall plan. It is necessary to reduce the speed and increase the distance through deceleration and transmission mechanisms. The following is a comparison of the advantages and disadvantages of several types of motors, see Table 1:

Table 1

By comparing the above table, considering the characteristics of the sitting mechanism in this article, the accuracy requirements are not high, safe, comfortable and will not continue to work for a long time. The required requirements are that the rated torque of the motor should be large and the installation space should be relatively small, but there are still There are subsequent deceleration and transmission mechanisms. Consider choosing a stepper motor with a static torque of 12Nm. Because the general static torque reaches more than ten Nm, its working voltage will reach more than 110 volts. It is obviously not suitable for this auxiliary device only. , and the corresponding volume and weight will also increase, which is simply unsupportable for ordinary wheelchairs, and the cost cannot be ignored. To summarize the selection of a stepper motor, since various types of stepper motors have corresponding drivers, the driver of the present invention is selected to be a driver matching the stepper machine.

The selection condition of the reducer is that the rated torque of the reducer must be greater than or equal to the rated torque of the motor multiplied by the reduction ratio and efficiency. Combined with the output shaft diameter of the motor mentioned above, the reducer should meet two basic conditions: 1. The first is that the input aperture of the reducer is 14mm; the second is that after the reducer increases the torque, T _minus = T _base i _minus eta _minus ≥ T _required . Therefore, there are four types of reducers to choose from, including harmonic reducer, worm gear reducer, gear reducer, and planetary reducer. However, based on the actual situation, only planetary reducer is the best. The reasons are as follows:

For harmonic reducers, although the basic conditions are relatively satisfied, the purchase cost is too high.

For the worm gear reducer, the basic conditions are met. Although the efficiency is low, the transmission ratio can be made very large. Unfortunately, the installation space is not sufficient.

For a gear reducer, if you want a large transmission ratio, its actual size and weight must be large. The transmission ratio is linked to the number of gear teeth, and the number of teeth affects the gear diameter. Even if multi-stage transmission is possible, the resulting reducer will be large and bulky and cannot meet the installation requirements.

The planetary reducer not only meets the basic conditions, but also ensures a relatively small volume and mass even when the reduction ratio is large. Although the price is slightly higher, the efficiency is very high.

Therefore, this invention finally selects PLX planetary reducer.

Because the transmission mechanism is the last time to increase torque, the actual torque of the first two steps is first calculated:

The torque at the output end of the reducer = the torque of the motor × the reduction ratio of the reducer × the efficiency of the reducer

That is, T _minus = T _base i _minus eta _minus , where the torque T _base of the motor is 12Nm, the speed ratio i _minus of the reducer is 16 from the above, and the efficiency of the reducer is 0.94, then

Theoretical torque: T _minus = 12 × 16 × 0.94 = 180Nm (3-15)

But the actual situation is far from that big, because the actual static torque of the stepper motor may only reach 10Nm, so the actual distance increase can be understood like this:

Actual torque: T _minus = 10×16×0.94＝150Nm＜162Nm (3-16)

It can also be seen from the above formula that the output torque of the reducer is less than its rated torque, so the model of the reducer is consistent.

However, the actual torque is far from reaching the required torque. Therefore, the design of the transmission mechanism must not only consider issues such as stability and efficiency, but the most important thing is the size of the transmission ratio for secondary torque increase.

From the _formula T = T _minus i, eta _, = 150·i, _eta > _T = _294Nm , it can be understood that the _product of i, eta is at least _greater than 2, so the transmission ratio of the _transmission mechanism will not be very large. According to the comparison of advantages and disadvantages of transmission types, first consider worm gear transmission. Since it has been determined above that the output form of the reducer is shaft output and the output shaft diameter is 22mm, then the worm must be in the hole input form, but there is no direct solution on the market. The required accessories need to be designed and processed independently, which is completely unnecessary for this design. Firstly, it will increase the difficulty of design, and secondly, the production cost will be much higher, so it is not planned to be used for the time being. Secondly, let’s look at chain drive and belt drive. There is no difference between the two forms. The most important thing is the size and tension of the transmission wheel. Because the tensioning device will also increase unnecessary design requirements, it is not intended to be used. It was finally determined to be spur gear transmission. The efficiency of this transmission method is very high, roughly 0.9 to 0.99, and does not require special customization. As long as the two gears can mesh, so the output shaft of the reducer is equipped with a small The cam is safe, reliable and easy to tighten, and then matched with a corresponding large gear, it can form a secondary torque-increasing transmission.

Looking through the mechanical manual and surveying the market, if you want to meet the 22mm output shaft diameter of the reducer, you can only choose a 2-mode 25-tooth small cam on the market, and then consider that the product of i transmission and eta _transmission is at _least greater than 2, that is, the number of teeth of the large gear At least greater than 55 teeth, but from the perspective of reliability, the final torque should be appropriately increased, that is, the number of teeth of the large gear should be slightly larger to increase the i- _transmission , so a 2-mode 65-tooth large gear matched with the small cam is selected, i.e., i- _transmission = 2.6, the meshing efficiency of the two gears reaches 0.94, that is, _eta = 0.94. Obviously the _product of i _and eta is greater than 2. The small cam and large gear described below are only the first gear and the second gear.

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

Table 2-1 Small cam parameters

Table 2-2 Large gear wheel parameters

Then according to the formula 3-14 T _final = T _base i _minus eta _minus i _{transmission eta transmission >} T _{needs to} = 294Nm. Combined with the above description, it can be seen that T _base = 10Nm, i _minus = 16, eta _minus = 0.94, i _transmission = 2.6, _eta = 0.94, substitute it to get:

T _final =10×16×0.94×2.6×0.94=367Nm>T _required =294Nm

That is, it meets the requirements.

This concludes the material selection and calculation instructions for the assisted standing intelligent elderly assistance device.

As stated above, although the present invention has been shown and described with reference to specific preferred embodiments, this is not to be construed as limiting the invention itself. Various changes may be made in form and details without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (4)

1. An auxiliary standing type intelligent elderly assistance device, characterized in that it includes a base, a motor and a reducer. The motor and the reducer are both installed on the base. The motor is connected to the reducer, and the output of the reducer A first gear is fixedly connected to the shaft, a second gear is meshed with the top of the first gear, a rotating shaft is fixedly connected to the second gear, and both ends of the rotating shaft are rotationally connected to the bearing seat, and the bearing The seat is fixedly connected to the base; A rotating arm is fixedly connected to the rotating shaft. The rotating arm includes a spring steel plate, a first rotating rod and a second rotating rod. One end of the spring steel plate is fixedly connected to the rotating shaft, and the other end of the spring steel plate is damped. The rotating shaft torque hinge is movably connected to the first rotating rod, the first rotating rod is hinged to the second rotating rod, the top of the second rotating rod is fixedly connected with a seat plate, and the end of the second rotating rod is hinged to The top of the base is pivoted and connected; The motor is an 86 stepper motor, and the reducer is a PLX planetary reducer; The base is composed of an optical axis bracket, a slotted aluminum profile, a three-dimensional angle slot connector, a two-dimensional angle slot connector, a T-nut, an angle code and an aluminum base plate. The motor and speed reducer are installed on the aluminum base plate; There are two rotating arms, which are respectively fixedly connected to both sides of the rotating shaft. A connecting rod is provided between the two rotating arms, and both ends of the connecting rod are fixedly connected to the first rotating rod respectively. 2. An auxiliary standing type intelligent elderly assistance device according to claim 1, characterized in that it also includes a slotted bedpan slide rail, and the slotted bedpan slide rail is installed on the base through a connecting piece, so The slotted bedpan slide rail is slidably connected to a bedpan, and a through hole is provided on the seat plate. The through hole is aligned with the bedpan. The through hole is used for the user to defecate. The through hole is rotatably connected and sealed. plate. 3. A standing-assisted intelligent elderly assistance device according to claim 2, characterized in that the bedpan includes a buffer area and a storage area, the buffer area is aligned with the through hole, and the storage area is used for storage. The bottom of the user's excrement storage area is connected to a discharge pipe, and a discharge valve is provided on the discharge pipe. 4. A standing-assisted intelligent elderly assistance device according to claim 1, characterized in that it also includes a safety component, the safety component includes two safety belts, one end of the two safety belts is connected to the seat. The plate is fixedly connected, the other end of one safety belt is fixedly connected with buckle one, and the other end of the other safety belt is fixedly connected with buckle two. The buckle one and the buckle two can be detachably connected, and the The buckle one cooperates with the buckle two so that the safety belt tightens the human body and reduces the tendency of human body movement.