Energy-saving lifting mechanism capable of assisting in going upstairs and downstairs and using and control method of energy-saving lifting mechanism

Abstract

The energy-saving lifting mechanism comprises an upper frame, a lower frame and a controller, an elastic energy storage part and a liftable support set are arranged between the upper frame and the lower frame, the liftable support set can drive the upper frame to ascend and descend and has a self-locking function, and when the upper frame bears force and descends, the elastic energy storage part is connected with the controller. The liftable support set can keep elastic deformation of the elastic energy storage part so as to store elastic potential energy, when the upper frame ascends, the elastic energy storage part recovers elastic deformation and releases the stored elastic potential energy to assist the upper frame to ascend, and a pedal is connected to the upper frame. The first pressure sensor electrically connected with the controller is arranged between the upper frame and the pedal or at the bottom of the lower frame, gravitational potential energy generated when the user goes down stairs or steps can be stored to assist in going up stairs or steps, and the energy-saving effect is good; the elastic energy storage piece assists the motor to ascend during ascending, the elastic energy storage piece assists the motor to descend during descending, energy can be saved, the power needed by the motor can be reduced, and the equipment cost is saved.

Description

Technical Field

[0001] This invention relates to the field of assistive mechanisms for going up and down stairs, and in particular to an energy-saving lifting mechanism for assisting in going up and down stairs, and its use and control method. Background Technology

[0002] Buildings of varying heights typically rely on elevators, staircases, or steps for movement between floors. While elevators are convenient and fast, they are prohibited in emergencies such as fires, making staircases or steps indispensable as safe evacuation routes. Especially for older, existing buildings, retrofitting elevators often faces numerous technical and spatial challenges, making implementation extremely difficult. Beyond staircases, steps in tourist attractions and parks also present challenges. Simply walking up and down stairs or steps is essentially using one's own physical strength to overcome gravity, raising and lowering oneself—a very strenuous activity. As living standards improve, people increasingly desire to reduce the physical burden of climbing stairs or steps, achieving easier travel. Therefore, the demand for effort-saving assistive devices for stairs or steps is growing. However, current stair-climbing or step-assistive devices generally lack energy-saving functions, exhibiting disadvantages such as high energy consumption and low levels of intelligence, making it difficult to meet practical application needs.

[0003] This invention is based on the above circumstances. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides an energy-saving lifting mechanism that assists in going up and down stairs, as well as its use and control method. It can not only easily go up and down stairs or steps, but also store the gravitational potential energy when going down stairs or steps to assist in going up stairs or steps. It has good energy-saving effect and a high degree of intelligence.

[0005] This invention is achieved through the following technical solution:

[0006] An energy-saving lifting mechanism for assisting in climbing stairs includes an upper frame, a lower frame, and a controller. An elastic energy storage component and a self-locking liftable support assembly are provided between the upper and lower frames. When the controller controls the self-locking liftable support assembly to lower the upper frame, the elastic energy storage component undergoes elastic deformation, increasing its elastic potential energy and assisting the upper frame in bearing the load during descent. The self-locking liftable support assembly maintains the elastic deformation of the elastic energy storage component, thus storing elastic potential energy. When the controller controls the self-locking liftable support assembly to raise the upper frame, the elastic energy storage component recovers its elastic deformation, releasing the stored elastic potential energy and assisting the upper frame in rising. A footboard is connected to the upper frame, and a first pressure sensor electrically connected to the controller is provided between the upper frame and the footboard or at the bottom of the lower frame.

[0007] As described above, an energy-saving lifting mechanism for assisting in going up and down stairs includes a liftable support assembly consisting of a geared motor with a self-locking function and at least one pair of lifting supports, wherein the lifting supports are X-shaped supports or A-frame supports; the liftable support assembly is connected to a connecting rod for driving it to perform shearing lifting action, the connecting rod is connected between two opposite lifting supports, and the output end of the geared motor is connected to a transmission conversion mechanism that can convert its rotation into driving the connecting rod to move laterally.

[0008] As described above, an energy-saving lifting mechanism for assisting in going up and down stairs includes a crank-connecting rod mechanism, wherein the output end of a geared motor is connected to one end of a crank, and the other end of the crank is connected to a connecting rod via a connecting rod.

[0009] As described above, an energy-saving lifting mechanism for assisting in going up and down stairs includes a transmission conversion mechanism comprising sprockets and a chain, with two sprockets; one sprocket is connected to the output end of a reduction motor, and the other sprocket is rotatably connected to the lower frame, with the connecting rod fixed to the chain.

[0010] As described above, in an energy-saving lifting mechanism that assists in going up and down stairs, the transmission conversion mechanism is a steering conversion mechanism or a telescopic rod structure.

[0011] As described above, in an energy-saving lifting mechanism for assisting in climbing stairs, when the liftable support assembly has two pairs of A-frame supports, the transmission conversion mechanism is a steering conversion mechanism. The left support rod of the left pair of A-frame supports is connected to a connecting rod, and a first slider is provided on the connecting rod. The right support rod of the right pair of A-frame supports is connected to a connecting rod, and a second slider is provided on the connecting rod. The first and second sliders are threadedly connected to a transmission screw. The output end of the steering conversion mechanism is connected to a double universal coupling (E). One end of the double universal coupling (E) is connected to a transmission screw with double helical threads. The rotation of the reduction motor links the first and second sliders to move in opposite directions or in opposite directions, and simultaneously links the two pairs of A-frame supports to move in opposite directions or in opposite directions from the rotation connection point with the lower frame, thereby linking the upper frame to rise or fall.

[0012] As described above, an energy-saving lifting mechanism for assisting in going up and down stairs is provided with a safety protection component on the upper frame or tread that can extend and retract as the upper frame moves up and down, thereby covering the gap between the upper frame and the lower frame.

[0013] The present invention also discloses a method for using and controlling the above-mentioned energy-saving lifting mechanism. The method of using the mechanism includes setting at least one energy-saving lifting mechanism on each step of the staircase to form a lifting mechanism group. The controllers in each energy-saving lifting mechanism are communicatively connected to form a control system. The lifting mechanism group also includes a second pressure sensor or human body sensing device located in the upper staircase area and the lower staircase area of ​​the staircase. The second pressure sensor and human body sensing device are communicatively connected to the control system.

[0014] Its control methods include methods for controlling access to upper floors:

[0015] S1. When there is no one on the steps, the upper stairwell area and the lower stairwell area of ​​each energy-saving lifting mechanism and the control system is in a waiting state, if someone steps into the lower stairwell area first, and the pressure received by the second pressure sensor in the lower stairwell area is greater than the preset value or the human body sensor detects a person, the control system switches to the upper stairwell mode, and the steps of each energy-saving lifting mechanism descend to the lowest position.

[0016] S2. When the pressure received by the first pressure sensor of the energy-saving lifting mechanism is greater than the preset value, the controller of the energy-saving lifting mechanism controls the pedal of the energy-saving lifting mechanism to rise from the lowest position to the highest position. This process is repeated until the pedal of the energy storage lifting step at the highest position rises from the lowest position to the highest position. When the pressure received by all the first pressure sensors is not greater than the preset value, the control system switches to the waiting state.

[0017] S3. When the pressure received by the first pressure sensor of a certain step of the energy-saving lifting mechanism exceeds the preset value, and the pressure received by the second pressure sensor in the area at the bottom of the stairs exceeds the preset value, or the human body sensor detects a person, the pedals of the energy-saving lifting mechanism whose pressure received by the first pressure sensor does not exceed the preset value will all descend to the lowest position. Starting from the lowest position of the energy-saving lifting mechanism, as the pressure received by the first pressure sensor of the energy-saving lifting mechanism exceeds the preset value, the controller of the energy-saving lifting mechanism will control the pedals of the energy-saving lifting mechanism to rise from the lowest position to the highest position. When the pressure received by all the first pressure sensors does not exceed the preset value, the control system switches to the waiting state.

[0018] Its control methods also include methods for controlling descent:

[0019] S4. When there is no one on the steps, the upper stairwell area, and the lower stairwell area of ​​each energy-saving lifting mechanism, and the control system is in a waiting state, if someone steps onto the upper stairwell area first, and the pressure received by the second pressure sensor in the upper stairwell area is greater than the preset value or the human body sensor detects a person, the control system switches to the lower stairwell mode, and the steps of each energy-saving lifting mechanism rise to the highest position.

[0020] S5. When the pressure received by the first pressure sensor of the energy-saving lifting mechanism is greater than the preset value, the controller of the energy-saving lifting mechanism controls the pedal of the energy-saving lifting mechanism to descend to the lowest position. This process is repeated until the pedal of the lowest position energy-saving lifting mechanism descends from the highest position to the lowest position. When the pressure received by all the first pressure sensors is not greater than the preset value, the control system switches to the waiting state.

[0021] S6. When the pressure received by the first pressure sensor of a certain step energy-saving lifting mechanism is greater than the preset value, and the pressure received by the second pressure sensor in the stairwell area is greater than the preset value, or the human body sensor detects a person, the pedals of the energy-saving lifting mechanism whose pressure received by the first pressure sensor does not exceed the preset value will all rise to the highest position. When the pressure received by the first pressure sensor of the energy-saving lifting mechanism is greater than the preset value, the pedals of the energy-saving lifting mechanism will fall from the highest position to the lowest position until the pressure received by all the first pressure sensors is not greater than the preset value, at which point the control system switches to the waiting state.

[0022] As described above, the energy-saving lifting mechanism is used and controlled by a lifting mechanism group on both the left and right sides of the stair steps, and each lifting mechanism group is independently controlled by the control system.

[0023] In the energy-saving lifting mechanism and control method described above, the human body sensing device is an infrared sensor, radar sensor, ultrasonic sensor, or human body recognition camera module.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. The gravitational potential energy when going down stairs or steps can be stored to help go up stairs or steps, resulting in good energy-saving effect.

[0026] 2. When rising, the elastic energy storage component helps the motor to rise; when falling, the elastic energy storage component helps the motor to bear less load. This not only saves energy but also reduces the power required by the motor, thus saving equipment costs.

[0027] 3. Equipped with sensors and controllers, it can intelligently control and assist people in going up and down stairs or steps, demonstrating a high degree of intelligence.

[0028] 4. It can be used not only for stairs, but also for steps in tourist attractions and parks. Attached Figure Description

[0029] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0030] Figure 1 This is a schematic diagram of the structure of an embodiment of the energy-saving lifting mechanism of the present invention;

[0031] Figure 2This is a schematic diagram of the structure of Embodiment 2 of the energy-saving lifting mechanism of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the energy-saving lifting mechanism of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of the energy-saving lifting mechanism of the present invention;

[0034] Figure 5 This is a schematic diagram of the fifth embodiment of the energy-saving lifting mechanism of the present invention;

[0035] Figure 6 This is a schematic diagram of the transmission screw structure with double helical threads in Embodiment 5 of the energy-saving lifting mechanism of the present invention;

[0036] Figure 7 This is a schematic diagram of a combined embodiment of the energy-saving lifting mechanism of the present invention;

[0037] Figure 8 This is a schematic diagram of a second embodiment of the energy-saving lifting mechanism combination of the present invention;

[0038] Figure 9 This is a schematic diagram of the third embodiment of the energy-saving lifting mechanism combination of the present invention. Detailed Implementation

[0039] The present invention will now be further described with reference to the accompanying drawings:

[0040] Example 1 of an energy-saving lifting mechanism for assisting in going up and down stairs:

[0041] like Figure 1As shown, an energy-saving lifting mechanism for assisting in climbing stairs includes an upper frame 1, a lower frame 2, an elastic energy storage component 3, and a liftable support assembly 4 with a self-locking linkage function. The liftable support assembly 4 with the self-locking linkage function comprises a geared motor 5A with a self-locking function and at least one pair of lifting supports. The output end of the geared motor 5A is connected to a transmission conversion mechanism 5B that can drive the liftable support assembly 4 to rise and fall. The transmission conversion mechanism 5B can be a telescopic rod structure 5G. A pedal 6 is provided on the upper frame 1. The elastic energy storage component 3 is located between the upper frame 1 and the lower frame 2. When the controller controls the geared motor 5A with the self-locking function to lower the pedal 6, the geared motor 5A with the self-locking function provides the downward rotational force. The telescopic rod structure 5G converts the rotation of the geared motor 5A with the self-locking function into movement, which in turn lowers the liftable support assembly 4. The upper frame 1 and the pedal 6 also fall in conjunction with this movement, and the pressure on the pedal 6... The combined force causes the elastic energy storage component 3 to deform under stress, increasing its elastic potential energy. Simultaneously, this assists the self-locking geared motor 5A in lowering the pedal 6. After the descent stops, the self-locking geared motor 5A automatically locks the elastic energy storage component 3 in its geometric shape, storing the elastic potential energy. When the controller controls the self-locking geared motor 5A to raise the pedal 6, the rotation direction of the self-locking geared motor 5A is opposite to that during descent, providing the upward lifting force. The lifting support assembly 4, the upper frame 1, and the pedal 6 also rise in tandem. The elastic energy storage component 3 simultaneously recovers its deformation, releasing the elastic potential energy stored during descent, thus assisting the self-locking geared motor 5A in raising the pedal 6. When someone is on the pedal 6, the weight on the pedal 6 increases. Since the weight of the human body is much greater than the weight of the pedal 6, the required motor power is larger. The elastic energy storage component 3 can assist the motor in raising the pedal 6 and supporting the downward descent of the pedal 6, thus not only saving energy but also reducing the power required by the motor.

[0042] A first pressure sensor 8 is provided between the upper frame 1 and the pedal 6 or at the bottom of the lower frame 2. The energy-saving lifting mechanism also includes a controller, which is electrically connected to the first pressure sensor 8. The first pressure sensor 8 can sense the pressure change on the pedal 6. When someone steps on the pedal 6, the pressure increases and when the person leaves, the pressure decreases.

[0043] like Figure 1The height-adjustable support assembly 4 shown includes at least one pair of X-shaped supports 4A1. Each pair of X-shaped supports 4A1 is located on opposite sides between the upper frame 1 and the lower frame 2. Each X-shaped support 4A1 has two support rods that are rotatably connected at the intersection point. The two support rods have four ends: upper left, lower left, upper right, and lower right. When the two support rods rotate around the intersection point and the upper left and upper right ends separate, the X-shaped support 4A1 lowers; when the upper left and upper right ends move closer together, the X-shaped support 4A1 rises. The upper right end and lower right end are rotatably connected to the upper frame 1 and lower frame 2, respectively. The upper left end and lower left end are rotatably connected to the upper frame 1 and lower frame 2, respectively. Frame 1 and lower frame 2 are slidably connected. The lower left support section is between the lower left end of the X-shaped bracket 4A1 and the intersection point. A connecting rod 5D is provided between the lower left support sections of a pair of X-shaped brackets 4A1 to drive the X-shaped brackets 4A1 to perform shearing and lifting. The front end of the telescopic rod structure 5G is connected to the connecting rod 5D, and the rear end of the telescopic rod structure 5G is connected to the output end of the geared motor 5A with self-locking function on the lower frame 2. The telescopic rod structure 5G converts the rotation of the geared motor 5A with self-locking function into movement. Through its telescopic push and pull linkage, it links the support rod of the X-shaped bracket 4A1, and links the upper frame 1 and the pedal 6 to lift and lower.

[0044] Furthermore, the upper frame 1 or the pedal 6 is equipped with a safety protection component 7 that can extend and retract as the upper frame 1 moves up and down, thereby blocking the gap between the upper frame 1 and the lower frame 2. The safety protection component 7 can prevent foreign objects from entering the gap between the upper frame 1 and the lower frame 2 and being trapped. The safety protection component 7 can be multiple sliding plates that are slidably connected; as the upper frame 1 rises, the sliding plates automatically slide downwards under the influence of gravity.

[0045] Furthermore, the elastic energy storage component 3 can be an energy storage spring, or of course, other elastic elements.

[0046] Example 2 of an energy-saving lifting mechanism for assisting in going up and down stairs:

[0047] like Figure 2 The difference between Embodiment 2 and Embodiment 1 of the energy-saving lifting mechanism for assisting in going up and down stairs is that:

[0048] The transmission conversion mechanism 5B consists of a sprocket 5B1 and a chain 5C. The upper and lower ends of the left side of the X-shaped bracket 4A1 are slidably connected to the upper frame 1 and the lower frame 2, respectively, and the upper and lower ends of the right side are rotatably connected to the upper frame 1 and the lower frame 2, respectively. One sprocket 5B1 is connected to the output end of the geared motor 5A with a self-locking function, and the other sprocket 5B1 is rotatably connected to the lower frame 2. The chain 5C is connected between the two sprockets. The connecting rod 5D is connected to the chain 5C. The chain 5C drives the connecting rod 5D to move, thereby converting the rotation of the geared motor 5A with a self-locking function into movement, and linking the X-shaped bracket 4A1, the upper frame 1, and the pedal 6 to rise and fall.

[0049] Embodiment 3 of an energy-saving lifting mechanism for assisting in going up and down stairs:

[0050] like Figure 3 The energy-saving lifting mechanism for assisting in going up and down stairs shown in Embodiment 3 differs from Embodiment 1 in that: the transmission conversion mechanism 5B is a crank-connecting rod mechanism, the output end of the geared motor 5A with self-locking function is connected to one end of the crank, the other end of the crank is connected to the connecting rod, and the other end of the connecting rod is connected to the connecting rod 5D. The upper frame 1 and the pedal 6 can be raised and lowered once in one circular motion of the crank, so the lifting and lowering can be achieved without changing the direction of the motor.

[0051] Example 4 of an energy-saving lifting mechanism for assisting in going up and down stairs:

[0052] like Figure 4 As shown, an energy-saving lifting mechanism for assisting in going up and down stairs is described. The difference between Embodiment 4 and Embodiment 1 is that the X-shaped bracket 4A1 is replaced by a herringbone bracket 4A2. The herringbone bracket 4A2 has two support rods, with the two ends connected by a rotatable joint. When the other two ends are separated, the herringbone bracket 4A2 lowers, and when they are close together, the herringbone bracket 4A2 rises, thus allowing for foldable lifting. Since a pair of herringbone brackets 4A2 also needs to have a device to maintain the balance of the upper frame 1, for ease of explanation, the lifting bracket 4 in this example consists of two pairs of herringbone brackets 4A2. The near ends of the two pairs of herringbone brackets 4A2 are rotatably connected, and the lower right end of the right herringbone bracket 4A2 is rotatably connected to the lower frame 2. The remaining connections to the upper frame 1 and the lower frame 2 are movable connections.

[0053] Embodiment 5 of an energy-saving lifting mechanism for assisting in going up and down stairs:

[0054] like Figure 5 The energy-saving lifting mechanism for assisting in going up and down stairs shown in Embodiment 5 differs from Embodiment 4 in that:

[0055] The two pairs of herringbone brackets 4A2 are rotatably connected to the lower frame 2, while the remaining connections to the upper frame 1 and the lower frame 2 are slidable. A connecting rod 5D is connected between the left support rods of the left pair of herringbone brackets 4A2, and a slider 5F1 is mounted on this connecting rod 5D. Another connecting rod 5D is connected between the right support rods of the right pair of herringbone brackets 4A2, and a slider 5F2 is mounted on this connecting rod 5D. The first slider 5F1 and the second slider 5F2 are threadedly connected to the transmission screw 5H. The transmission conversion mechanism 5B is a steering converter. The structure involves changing the direction of the self-locking geared motor 5A by 90°. The output end of the steering change mechanism is connected to one end of the double universal coupling 5E, and the other end of the double universal coupling 5E is connected to one end of the double-threaded transmission screw 5H. The rotation of the self-locking geared motor 5A causes the sliders 5F1 and 5F2 to move in opposite directions, simultaneously causing the two pairs of herringbone brackets 4A2 to move in opposite directions to their rotational connection points with the lower frame 2, and also causing the upper frame 1 and the pedal 6 to rise and fall. The schematic diagram of the double-threaded transmission screw 5H is shown below. Figure 6 As shown.

[0056] This invention also discloses the use and control method of the energy-saving lifting mechanism for assisting in going up and down stairs, Example 1:

[0057] like Figures 1 to 6 and Figure 7 As shown, each step of the staircase 100 is equipped with at least one energy-saving lifting mechanism to form a lifting mechanism group, and the controllers of each energy-saving lifting mechanism are communicatively connected to form a control system. The lifting mechanism group also includes a second pressure sensor or human body sensing device located in the upper staircase area 17 and the lower staircase area 10 of the staircase 100, and the second pressure sensor and human body sensing device are communicatively connected to the control system.

[0058] Taking a staircase 100 with six steps as an example, the energy-saving lifting mechanism includes a first energy-saving lifting mechanism 11, a second energy-saving lifting mechanism 12, a third energy-saving lifting mechanism 13, a fourth energy-saving lifting mechanism 14, a fifth energy-saving lifting mechanism 15, and a sixth energy-saving lifting mechanism 16, which are respectively installed on each step of the staircase 100. The above-mentioned control system has an upstairs control method, a downstairs control method, and a waiting state mode.

[0059] Methods to control upstairs access:

[0060] S1: When there is no one on the pedals 6, the upper stairwell area 17 and the lower stairwell area 10 of each energy-saving lifting mechanism, and the control system is in a waiting state, if someone steps into the lower stairwell area 10 first, and the pressure received by the second pressure sensor in the lower stairwell area 10 is greater than the preset value or the human body sensor detects a person, the control system switches to the upper stairwell mode, and the pedals 6 of each energy-saving lifting mechanism descend to the lowest position.

[0061] S2: When the pressure received by the first pressure sensor 8 of the energy-saving lifting mechanism is greater than the preset value, the controller of the energy-saving lifting mechanism controls the pedal 6 of this energy-saving lifting mechanism to rise from the lowest position to the highest position, that is, the lowest position of the pedal 6 of the previous energy-saving lifting mechanism. This is repeated until the pedal 6 of the highest energy-saving lifting mechanism rises from the lowest position to the highest position. When the pressure received by all the first pressure sensors 8 is not greater than the preset value, the control system switches to the waiting state.

[0062] That is, if a person steps onto the lowest position of the first energy-saving lifting mechanism 11, the controller of the first energy-saving lifting mechanism 11 controls the pedal 6 of the first energy-saving lifting mechanism 11 to rise from the lowest position to the highest position, and so on. As the person steps onto the energy-saving lifting mechanism, it helps the person climb one step at a time until the climb is completed, and then the control system returns to the waiting state.

[0063] S3: When the pressure received by the first pressure sensor 8 of a certain energy-saving lifting mechanism is greater than the preset value, and the pressure received by the second pressure sensor in the stairwell area is greater than the preset value or the human body sensor detects a person, the pedals 6 of the energy-saving lifting mechanism whose pressure received by the first pressure sensor 8 is less than the preset value will all descend to the lowest position. Starting from the lowest position of the energy-saving lifting mechanism, as the pressure received by the first pressure sensor 8 of the energy-saving lifting mechanism is greater than the preset value, the controller of the energy-saving lifting mechanism will control the pedals 6 of this energy-saving lifting mechanism to rise from the lowest position to the highest position. When the pressure received by all the first pressure sensors 8 is less than the preset value, the control system switches to the waiting state.

[0064] That is, if someone has not finished going upstairs and someone else wants to go upstairs, as long as they wait for the previous energy-saving lifting mechanism to descend to the lowest position, the system can assist the person going upstairs to go up one step at a time until everyone has finished going upstairs, and then the control system returns to the waiting state.

[0065] Methods for controlling descent:

[0066] S4: When there is no one on the pedals 6, the upper stairwell area 17 and the lower stairwell area 10 of each energy-saving lifting mechanism, and the control system is in a waiting state, if someone steps onto the upper stairwell area 17 first, and the pressure received by the second pressure sensor of the upper stairwell area 17 is greater than the preset value or the human body sensor detects a person, the control system switches to the lower stairwell mode, and the pedals 6 of each energy-saving lifting mechanism rise to the highest position.

[0067] S5: When the pressure received by the first pressure sensor 8 of the energy-saving lifting mechanism is greater than the preset value, the controller of the energy-saving lifting mechanism controls the pedal 6 of the energy-saving lifting mechanism to descend to the lowest position. This process is repeated until the pedal 6 of the energy-saving lifting mechanism in the lowest position descends from the highest position to the lowest position. When the pressure received by all the first pressure sensors 8 is not greater than the preset value, the control system switches to the waiting state.

[0068] That is, when someone steps onto the highest position of the sixth energy-saving lifting mechanism 16, the pressure on its first pressure sensor 8 is greater than the preset value. The controller of the sixth energy-saving lifting mechanism 16 controls the pedal 6 in the sixth energy-saving lifting mechanism 16 to descend from the highest position to the lowest position, helping the person to go down one step and reducing the force on the person going down one step. This is repeated, helping the person to go down one step at a time with the rhythm of the person's steps, and finally leaving the lowest first energy-saving lifting mechanism 11. The control system then returns to the waiting state.

[0069] S6: When the pressure received by the first pressure sensor 8 of a certain step is greater than the preset value, and the pressure received by the second pressure sensor in the stairwell area is greater than the preset value, or the human body sensor detects a person, the pedals 6 of the energy-saving lifting mechanism that are not under pressure of the first pressure sensor 8 will all rise to the highest position. When the pressure received by the first pressure sensor 8 of the energy-saving lifting mechanism is greater than the preset value, the pedals 6 of the energy-saving lifting mechanism will fall from the highest position to the lowest position until the pressure received by all the first pressure sensors 8 is not greater than the preset value, at which point the control system switches to the waiting state.

[0070] That is, if someone has not finished going downstairs and someone else wants to go downstairs, as long as we wait for at least one interval for the energy-saving lifting mechanism to rise to the highest position, it can assist the person going downstairs one step at a time until everyone has finished going downstairs, and then the control system returns to the waiting state.

[0071] Example 2 of the use and control method of the energy-saving lifting mechanism for assisting in going up and down stairs:

[0072] like Figures 1 to 3 He Ru Figure 8As shown, the difference between Embodiment 2 and Embodiment 1 is that energy-saving lifting mechanisms are provided on both the left and right sides of the staircase 100, and the energy-saving lifting mechanisms on both sides are controlled independently. On one side, the first energy-saving lifting mechanism 11 to the sixth energy-saving lifting mechanism 16 form one column, and on the other side, the seventh energy-saving lifting mechanism 21, the eighth energy-saving lifting mechanism 22, the ninth energy-saving lifting mechanism 23, the tenth energy-saving lifting mechanism 24, the eleventh energy-saving lifting mechanism 25, and the twelfth energy-saving lifting mechanism 26 form another column. The second pressure sensors or human body sensing devices of the two columns are correspondingly set at the same column position of each energy-saving lifting mechanism. The two columns are controlled independently and are unrelated to each other. The control method of each column of energy-saving lifting mechanism is the same as the control method of the previous example. Therefore, there are many combinations of control for the two columns going up and down the stairs. They can go up and down the stairs at the same time, or one column can go up and the other column can go down.

[0073] Example 3 of the use and control method of the energy-saving lifting mechanism for assisting in going up and down stairs:

[0074] like Figures 1 to 3 He Ru Figure 9 As shown, the difference between Example 3 and Example 1 is that:

[0075] The first energy-saving lifting mechanism 11 to the sixth energy-saving lifting mechanism 16, which are respectively installed on each step of the staircase 100, only occupy a part of each step. The unoccupied part can be used to walk up and down the stairs just like the original staircase 100. The second pressure sensor or human body sensing device is set in the corresponding position of the energy-saving lifting mechanism, which can save the material cost of the lifting mechanism and reduce the load on the staircase 100.

[0076] Furthermore, the human body sensing device in the above embodiments can be one or more of the following: infrared sensor, radar sensor, ultrasonic sensor, human body recognition camera module, or other human body sensing devices.

[0077] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An energy-saving lifting mechanism for assisting in going up and down stairs, characterized in that: The system includes an upper frame (1), a lower frame (2), and a controller. An elastic energy storage component (3) and a liftable support group (4) that can drive the upper frame (1) to rise and fall and has a self-locking function are provided between the upper frame (1) and the lower frame (2). When the controller controls the liftable support group (4) with the self-locking function to move the upper frame (1) down, the elastic energy storage component (3) increases its elastic potential energy by elastic deformation, which helps the upper frame (1) to bear the load and fall. The liftable support group (4) with the self-locking function can maintain the elastic deformation of the elastic energy storage component (3) to store elastic potential energy. When the controller controls the liftable support group (4) with the self-locking function to move the upper frame (1) up, the elastic energy storage component (3) restores its elastic deformation and releases the stored elastic potential energy to help the upper frame (1) to rise. A pedal (6) is connected to the upper frame (1). A first pressure sensor (8) that is electrically connected to the controller is provided between the upper frame (1) and the pedal (6) or at the bottom of the lower frame (2).

2. The energy-saving lifting mechanism for assisting in going up and down stairs according to claim 1, characterized in that: The liftable support assembly (4) consists of a geared motor (5A) with a self-locking function and at least one pair of lifting supports. The lifting supports are X-shaped supports (4A1) or herringbone supports (4A2). The liftable support assembly (4) is connected to a connecting rod (5D) for driving it to perform shearing and lifting actions. The connecting rod (5D) is connected between two opposite lifting supports. The output end of the geared motor (5A) is connected to a transmission conversion mechanism (5B) that can convert its rotation into driving the connecting rod (5D) to move laterally.

3. The energy-saving lifting mechanism for assisting in going up and down stairs according to claim 2, characterized in that: The transmission conversion mechanism (5B) includes a crank-connecting rod mechanism, the output end of the geared motor (5A) is connected to one end of the crank, and the other end of the crank is connected to the connecting rod (5D) through a connecting rod.

4. The energy-saving lifting mechanism for assisting in going up and down stairs according to claim 2, characterized in that: The transmission conversion mechanism (5B) includes a sprocket (5B1) and a chain (5C). There are two sprockets (5B1); one sprocket (5B1) is connected to the output end of the geared motor (5A), and the other sprocket (5B1) is rotatably connected to the lower frame (2). The connecting rod (5D) is fixed to the chain (5C).

5. The energy-saving lifting mechanism for assisting in going up and down stairs according to claim 2, characterized in that: The transmission conversion mechanism (5B) is a steering conversion mechanism or a telescopic rod structure (5G).

6. The energy-saving lifting mechanism for assisting in going up and down stairs according to claim 5, characterized in that: When the liftable support assembly (4) has two pairs of herringbone brackets (4A2), the transmission conversion mechanism (5B) is a steering conversion mechanism. The left support rod of the pair of herringbone brackets (4A2) on the left is connected to the connecting rod (5D), and the connecting rod (5D) is provided with a first slider (5F1). The right support rod of the pair of herringbone brackets (4A2) on the right is connected to the connecting rod (5D), and the connecting rod (5D) is provided with a second slider (5F2). The first slider (5F1) and the second slider (5F2) are connected to the connecting rod (5D). 5F2) is threadedly connected to the transmission screw (5H). The output end of the steering conversion mechanism is connected to a double universal coupling (5E). One end of the double universal coupling (5E) is connected to the transmission screw (5H) with double helical threads. The rotation of the reduction motor (5A) is linked to the first slider (5F1) and the second slider (5F2) to move in opposite directions or in opposite directions. At the same time, it is linked to the two pairs of herringbone brackets (4A2) to move in opposite directions or in opposite directions to the rotation connection point with the lower frame (2), thereby linking the upper frame (1) to rise or fall.

7. An energy-saving lifting mechanism for assisting in going up and down stairs according to any one of claims 1-6, characterized in that: The upper frame (1) or the pedal (6) is provided with a safety protection component (7) that can extend and retract as the upper frame (1) moves up and down, thereby blocking the gap between the upper frame (1) and the lower frame (2).

8. A method for using and controlling the energy-saving lifting mechanism as described in claim 7, characterized in that: The method of use includes setting at least one energy-saving lifting mechanism on each step of the staircase to form a lifting mechanism group, and the controllers in each energy-saving lifting mechanism are connected in communication to form a control system. The lifting mechanism group also includes a second pressure sensor or human body sensing device located in the upper staircase area (17) and the lower staircase area (10) of the staircase. The second pressure sensor and human body sensing device are connected in communication with the control system. Its control methods include methods for controlling access to upper floors: S1. When there is no one on the pedal (6), the upper stairwell area (17) and the lower stairwell area (10) of each energy-saving lifting mechanism, and the control system is in a waiting state, if someone steps into the lower stairwell area (10) first, and the pressure received by the second pressure sensor in the lower stairwell area (10) is greater than the preset value or the human body sensor detects a person, the control system switches to the upper stairwell mode, and the pedal (6) of each energy-saving lifting mechanism descends to the lowest position. S2. When the pressure received by the first pressure sensor (8) of the energy-saving lifting mechanism is greater than the preset value, the controller of the energy-saving lifting mechanism controls the pedal (6) of the energy-saving lifting mechanism to rise from the lowest position to the highest position. This is repeated until the pedal (6) of the energy storage lifting step at the highest position rises from the lowest position to the highest position. When the pressure received by all the first pressure sensors (8) is not greater than the preset value, the control system switches to the waiting state. S3. When the pressure on the first pressure sensor (8) of a certain step of the energy-saving lifting mechanism is greater than the preset value, and the pressure on the second pressure sensor in the stairwell area (10) is greater than the preset value or the human body sensor detects a person, the pedals (6) of the energy-saving lifting mechanism whose pressure on the first pressure sensor (8) does not exceed the preset value will all descend to the lowest position. Starting from the lowest position of the energy-saving lifting mechanism, as the pressure on the first pressure sensor (8) of the energy-saving lifting mechanism exceeds the preset value, the controller of the energy-saving lifting mechanism controls the pedals (6) of the energy-saving lifting mechanism to rise from the lowest position to the highest position. When the pressure on all the first pressure sensors (8) is not greater than the preset value, the control system switches to the waiting state. Its control methods also include methods for controlling descent: S4. When there is no one on the pedals (6), the upper stairwell area (17) and the lower stairwell area (10) of each energy-saving lifting mechanism, and the control system is in a waiting state, if someone steps onto the upper stairwell area (17) first, and the pressure received by the second pressure sensor of the upper stairwell area (17) is greater than the preset value or the human body sensor detects a person, the control system switches to the lower stairwell mode, and the pedals (6) of each energy-saving lifting mechanism rise to the highest position. S5. When the pressure received by the first pressure sensor (8) of the energy-saving lifting mechanism is greater than the preset value, the controller of the energy-saving lifting mechanism controls the pedal (6) of the energy-saving lifting mechanism to descend to the lowest position. This is repeated until the pedal (6) of the energy-saving lifting mechanism in the lowest position descends from the highest position to the lowest position. When the pressure received by all the first pressure sensors (8) is not greater than the preset value, the control system switches to the waiting state. S6. When the pressure received by the first pressure sensor (8) of a certain step energy-saving lifting mechanism is greater than the preset value, and the pressure received by the second pressure sensor in the stairwell area (17) is greater than the preset value or the human body sensing device detects a person, the pedals (6) of the energy-saving lifting mechanism whose pressure received by the first pressure sensor (8) does not exceed the preset value will all rise to the highest position. When the pressure received by the first pressure sensor (8) of the energy-saving lifting mechanism is greater than the preset value, the pedals (6) of the energy-saving lifting mechanism will fall from the highest position to the lowest position until the pressure received by all the first pressure sensors (8) is not greater than the preset value, at which point the control system switches to the waiting state.

9. The method for using and controlling the energy-saving lifting mechanism according to claim 8, characterized in that: Each of the two sides of the stair steps is equipped with a lifting mechanism group, and each lifting mechanism group is independently controlled by the control system.

10. The method for using and controlling the energy-saving lifting mechanism according to claim 8, characterized in that: The human body sensing device is an infrared sensor, radar sensor, ultrasonic sensor, or human body recognition camera module.

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