A barrier-free passing device

Abstract

The application discloses a barrier-free passing device and relates to the field of barrier-free auxiliary facilities of buildings, and aims to solve the problem that a compliant barrier-free ramp cannot be installed in a space-limited scene. The device comprises a step main body, a containing cavity, a linkage baffle assembly, a wrapping component and a control assembly. The containing cavity is arranged in the step main body, and the control assembly receives instructions through a button assembly and controls the actions of the components. In a normal passing mode, the linkage baffle assembly is completely accommodated, and the appearance of the device is integrated with the building. In a barrier-free passing mode, the control assembly drives an electric push rod to extend, a rotating shaft to rotate and baffles to overturn, so that the front baffle, the baffles and the rear baffle form a sloping or horizontal channel, which is suitable for wheelchair passing. The device does not need to reform the original building foundation, and realizes the compatibility of normal passing and barrier-free passing functions.

Description

Technical Field

[0001] This invention relates to the field of building accessibility assistance technology, and more particularly to an accessibility device. Background Technology

[0002] Currently, solutions for navigating indoor and outdoor elevation differences can be mainly divided into three categories, with the following specific structures, functions, and application scenarios:

[0003] (1) Fixed steps

[0004] Structural composition: It is made of concrete or metal, usually with multiple steps, no additional moving parts, and the appearance is mostly a single material (such as concrete or stone). Its integration with the building facade depends on the later decoration.

[0005] Working method: It only serves as a fixed carrier for pedestrians to pass through, and its height or shape cannot be adjusted, lacking barrier-free passage function;

[0006] Application scenarios: Widely used at the entrances of various buildings, but requires an independent barrier-free access (such as a ramp) or an additional space for the lifting platform to meet the needs of wheelchair users.

[0007] (2) Independent barrier-free lifting platform

[0008] Structural composition: It consists of a metal support platform, fixed brackets, manual and electric drive modules. It needs to be fixed to the ground separately. There is no uniform appearance covering on the outside. It is mostly an exposed metal structure.

[0009] Operating method: Before use, the support frame needs to be manually unfolded and the lifting height adjusted (some parts need to be manually locked). After use, the support frame needs to be manually stored. The lifting parts are exposed for a long time.

[0010] Application scenarios: Only applicable to building entrances with ample space (requires ≥1.5㎡ of dedicated installation space), with low integration of appearance with the building environment, easily forming an "obtrusive addition".

[0011] To address the core shortcomings of existing technologies, this invention aims to achieve four major goals: spatial adaptability, efficiency improvement, functional compatibility, and unified appearance. Specifically, it solves the following technical problems:

[0012] (1) Solve the problems of limited space on fixed steps that cannot be equipped with barrier-free facilities and the need for additional modifications to the appearance;

[0013] (2) Solve the problems of large space occupation, low integration and abrupt appearance of independent lifting platforms;

[0014] (3) Solve the problems of cumbersome operation and low efficiency of independent lifting platforms;

[0015] (4) Solve the problem of poor adaptability of existing solutions. Summary of the Invention

[0016] Based on the above analysis, the present invention aims to provide an accessible access device to solve the problems of fixed steps lacking accessibility functions, the inability to match ramps when space is limited (e.g., width < 1.2m), the large space occupation of independent accessible lifting platforms (requiring ≥ 1.5㎡), low integration with the overall building (e.g., exposed metal), or lack of external cladding that fails to meet the aesthetic requirements of civil buildings.

[0017] The objective of this invention is mainly achieved through the following technical solutions:

[0018] An accessible passage device includes a step body, a receiving cavity, a linkage baffle assembly, a covering component, and a control component; the receiving cavity is disposed inside the step body, the linkage baffle assembly is disposed in the receiving cavity, the covering component covers the outer surface of the step body, and the control component is used to control the passage mode switching of the step body.

[0019] Furthermore, the step body includes a fixing frame, expansion bolts, and an inlet / outlet, and the wrapping component provides an opening for the inlet / outlet on the outer surface of the step body.

[0020] Furthermore, the expansion bolts are provided at the bottom and sides of the fixing frame for fixing to the ground and the wall.

[0021] Furthermore, the receiving cavity has a cuboid structure, and the inlet and outlet are located on the central step facade of the main step body.

[0022] Furthermore, the linkage baffle assembly includes a first electric hinge, a front baffle, a rear baffle, a second electric hinge, and a baffle.

[0023] Furthermore, the front baffle is hinged to the baffle via a first electric hinge, and the rear baffle is hinged to the baffle via a second electric hinge.

[0024] Furthermore, the front baffle and the rear baffle can rotate within the range of 0°-180° along the hinge axis and stay at any position.

[0025] Furthermore, the linkage baffle assembly also includes a handrail rotating part, a handrail, and reinforcing components.

[0026] Furthermore, the handrail is hinged to both sides of the baffle via a handrail rotating part, and the handrail rotating part is provided with damping so that the handrail can stop at any rotating position.

[0027] Furthermore, the reinforcing component consists of two intersecting support bars fixed to the rear baffle.

[0028] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0029] (1) The barrier-free access device of the present invention addresses the problem that space is limited in the connection between indoor and outdoor buildings and compliant barrier-free ramps cannot be installed. It adopts a structure design with built-in lifting platform, which can directly replace traditional steps with height differences or replace part of the step structure without taking up extra space. It breaks through the limitations of traditional barrier-free facilities on installation space and is especially suitable for places with tight space such as community gates, commercial complex entrances, and public venue steps.

[0030] (2) The barrier-free passage device of the present invention realizes flexible switching between normal passage and barrier-free passage mode through the control component: in normal mode, all functional components are completely housed inside the main body of the step, and pedestrians can pass normally along the step without affecting the original passage efficiency; in barrier-free mode, it can be quickly unfolded to form a ramp or horizontal passage adapted to wheelchairs, meet the passage needs of people with disabilities, realize "one thing for two purposes", and take into account the use needs of ordinary pedestrians and special groups.

[0031] (3) The handrail and cross support bar added in this invention enhance the safety of passage and the load-bearing capacity of the rear panel, respectively; the "emergency stop" function and customized reset sequence further ensure safety during use.

[0032] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0033] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0034] Figure 1 This is a schematic diagram of the normal passage mode of the barrier-free passage device according to Embodiment 1 of the present invention;

[0035] Figure 2 This is a schematic diagram of the built-in lifting platform extending from the barrier-free ramp access mode of the barrier-free access device in Embodiment 1 of the present invention;

[0036] Figure 3 This is a cross-sectional structural schematic diagram of the barrier-free ramp access mode of the barrier-free access device according to Embodiment 1 of the present invention;

[0037] Figure 4This is a schematic diagram of the gear meshing structure of the sliding component of the barrier-free access device according to Embodiment 1 of the present invention;

[0038] Figure 5 This is a schematic diagram of the barrier-free horizontal passage mode of the barrier-free passage device according to Embodiment 1 of the present invention;

[0039] Figure 6 This is a schematic diagram of the barrier-free access device in Embodiment 2 of the present invention, showing the barrier-free lifting and anti-fall access mode.

[0040] Figure 7 This is a cross-sectional structural diagram of the barrier-free access device in Embodiment 2 of the present invention, showing its barrier-free lifting and anti-fall access mode.

[0041] Figure 8 This is a rear view structural diagram of the barrier-free access device in Embodiment 2 of the present invention, showing the barrier-free lifting and anti-fall access mode.

[0042] Figure 9 This is a schematic diagram of the raised state structure of the barrier-free access device in Embodiment 2 of the present invention in the barrier-free lifting and anti-fall access mode.

[0043] Figure label:

[0044] 1-Staircase body; 11-Fixed frame; 12-Expansion bolt; 13-Inlet / outlet; 2-Accommodating cavity; 3-Built-in lifting platform assembly; 31-Bearing frame; 32-First electric rotating shaft; 33-Guide rail; 34-Electric push rod; 35-Baffle mounting seat; 36-Second electric rotating shaft; 37-Sliding assembly; 371-Electric rotating shaft; 372-Roller; 4-Linked baffle assembly; 41-First electric hinge; 42-Front baffle; 43-Rear baffle; 44-Second electric hinge; 45-Handrail rotating part; 46-Baffle; 47-Handrail; 48-Reinforcing component; 5-Wrapping component; 6-Control assembly; 61-First button assembly; 62-Second button assembly; 63-Controller. Detailed Implementation

[0045] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0046] Example 1

[0047] A specific embodiment of the present invention discloses an accessible passage device, such as... Figure 1 and Figure 2As shown, the barrier-free access device includes a step body 1, a receiving cavity 2, a linkage baffle assembly 4, a covering component 5, and a control component 6. The receiving cavity 2 is located inside the step body 1, the linkage baffle assembly 4 is located in the receiving cavity 2, the covering component 5 covers the outer surface of the step body 1 and leaves an opening for the receiving cavity 2, and the control component 6 has a built-in action logic program for controlling the switching of the access mode of the step body.

[0048] In this embodiment, in order to be applicable to application scenarios that switch between normal passage and barrier-free passage, such as... Figures 1 to 4 As shown, the main body of the steps 1 includes a fixed frame 11, expansion bolts 12, and an entrance / exit 13. The fixed frame 11 is the overall structural frame of the main body of the steps 1. Expansion bolts 12 are provided on the bottom and sides of the fixed frame 11 for fixing to the ground and wall. The main body of the steps 1 is made of concrete (e.g., C30 concrete), and the fixed frame 11 is a steel frame structure (e.g., galvanized square steel). The entrance / exit 13 is located on the middle step facade of the main body of the steps 1 and faces the outside.

[0049] The middle step of the main step 1 is provided with a receiving cavity 2. The receiving cavity 2 is a cuboid cavity that can accommodate the built-in lifting platform assembly 3, the linkage baffle assembly 4 and the control assembly 6. The cavity lining of the receiving cavity 2 is a stainless steel plate.

[0050] The main body of the steps 1 also includes a built-in lifting platform assembly 3, which is disposed in the receiving cavity 2, such as... Figures 2 to 4As shown, the built-in lifting platform assembly 3 includes a support frame 31, a first electric rotating shaft 32, a guide rail 33, an electric push rod 34, a baffle mounting seat 35, a second electric rotating shaft 36, and a sliding assembly 37. A support frame 31 is disposed inside the receiving cavity 2 and its dimensions are adapted to the receiving cavity 2. A guide rail 33 is provided at the bottom of the support frame 31. An electric push rod 34 is disposed along the outside of the guide rail 33 and is parallel to the guide rail 33. A sliding component 37 is provided at the end of the guide rail 33 and is fixedly connected to the guide rail 33. The electric push rod 34 is provided with a gear meshing surface. The sliding component 37 includes an electric rotating shaft 371 and a rotating wheel 372, which are fixedly connected. The rotating wheel 372 is provided with end face teeth. The rotating wheel 372 and the electric push rod 34 form a gear mesh. An electric drive module is provided inside the electric rotating shaft 371 for driving the rotating wheel 372 to rotate clockwise and counterclockwise. Through the rotating wheel 372 and the electric push rod 34, the rotation of the rotating wheel 372 and the rotating wheel 372 is connected. The gears formed by the 4 drive the electric push rod 34 to extend forward and retract backward. A baffle mounting seat 35 is provided at the rear end of the supporting frame 31. The first electric rotating shaft 32 and the second electric rotating shaft 36 are respectively provided at the ends of the electric push rod 34. The electric push rod 34 is hinged to the guide rail 33 through the first electric rotating shaft 32. The hinge between the electric push rod 34 and the first electric rotating shaft 32 is provided with damping. The first electric rotating shaft 32 is used to drive the electric push rod 34 to rotate. An electric drive module is provided inside the first electric rotating shaft 32, which can drive the first electric rotating shaft 32 to rotate clockwise and counterclockwise, thereby driving the electric push rod 34 to rotate clockwise and counterclockwise synchronously along the central axis of the first electric rotating shaft 32. The electric push rod 34 can stop at any position during rotation.

[0051] The linkage baffle assembly 4 is mounted on the built-in lifting platform assembly 3, such as... Figures 2 to 5As shown, the linkage baffle assembly 4 includes a first electric hinge 41, a front baffle 42, a rear baffle 43, a second electric hinge 44, and a baffle 46. A baffle 46 is disposed inside the electric push rod 34. The front end of the baffle 46 is hinged to the electric push rod 34 via a second electric shaft 36. Damping is provided at the hinge point between the baffle 46 and the second electric shaft 36. The second electric shaft 36 drives the baffle 46 to rotate. An electric drive module is installed inside the second electric shaft 36, which can drive the second electric shaft 36 to rotate clockwise and counterclockwise, thereby causing the baffle 46 to rotate clockwise and counterclockwise synchronously along the central axis of the second electric shaft 36. The second electric shaft 36 can stop at any rotational position during rotation. A front baffle 42 is hinged to the baffle 46 via a first electric hinge 41, and a rear baffle 43 is hinged to the baffle 46 via a second electric hinge 44. Both the first electric hinge 41 and the second electric hinge 44 are damped. The second electric hinge 44 is used to drive the front baffle 42 and the rear baffle 43 to rotate and limit the rotation range to between 0° and 180°. The first electric hinge 41 and the second electric hinge 44 are both equipped with electric drive modules, which can drive the first electric hinge 41 and the second electric hinge 44 to rotate clockwise and counterclockwise between 0° and 180°, thereby driving the front baffle 42 and the rear baffle 43 to rotate synchronously between 0° and 180° along the central axis of the hinge position of the first electric hinge 41 and the second electric hinge 44 and to stop at any position. When the front baffle 42 and the rear baffle 43 are flipped above the baffle 46 and the front baffle 42, the rear baffle 43 and the baffle 46 are stacked together, the linkage baffle assembly 4 can be completely housed in the receiving cavity 2 and embedded in the baffle mounting seat 35 for fixation.

[0052] Control component 6 includes a first button component 61 and a controller 63 (not shown in the figure). For example... Figure 1 and Figure 5 As shown, the first button assembly 61 is disposed on the step surface of the step body 1, and the controller 63 is disposed in the receiving cavity 2. The first button assembly 61 includes four function buttons: "start", "raise", "retract" and "emergency stop". The buttons are connected to the controller 63 through wires. The controller 63 is connected to the electric push rod 34, the first electric hinge 41, the second electric hinge 44, the first electric rotating shaft 32 and the second electric rotating shaft 36 through wires and outputs action execution commands.

[0053] Specifically, the device of the present invention has the following passage modes: normal passage mode (step mode), barrier-free ramp passage mode, and barrier-free horizontal surface passage mode, such as... Figure 1As shown, when the main body of the steps 1 is in normal passage mode, the front baffle 42 and the rear baffle 43 flip and fold above the baffle 46, and the built-in lifting platform assembly 3 is completely housed in the receiving cavity 2. Pedestrians can pass normally along the steps. The appearance of the main body of the steps 1 blends with the architectural environment and has no protruding parts.

[0054] When the main staircase 1 needs to be switched to the accessible ramp access mode, such as Figures 2 to 4 As shown, when the user presses the "Start" button on the first button assembly 61, the electric shaft 371 drives the rotating wheel 372 to rotate. The rotating wheel 372 drives the electric push rod 34 to extend outward horizontally from the inlet / outlet 13 through gear meshing. When the electric push rod 34 is fully extended, the first electric shaft 32 drives the electric push rod 34 to rotate to the ground. At the same time, the second electric shaft 36 drives the baffle 46 to rotate to the horizontal and fit against the ground. Then, the front baffle 42 is rotated 180° to the horizontal and fit against the ground by the first electric hinge 41. The rear baffle 43 is rotated and overlapped on the highest step by the second electric hinge 44. At the same time, the first electric hinge 41 and the second electric hinge 44 rotate synchronously to adjust the angle so that the front baffle 42, baffle 46 and rear baffle 43 form a sloped passage, which can be passed through without obstacles.

[0055] When the main body of the steps 1 needs to be restored to normal passage mode, the user presses the "Retract" button on the first button assembly 61. The second electric hinge 44 drives the rear baffle 43 to flip above the baffle 46, and the first electric hinge 41 drives the front baffle 42 to flip above the baffle 46. The front baffle 42 and the rear baffle 43 overlap above the baffle 46. The second electric rotating shaft 36 drives the baffle 46 to rotate, so that the overlapped front baffle 46, rear baffle 43 and baffle 46 rotate and form the same plane with the electric push rod 34. Then the first electric rotating shaft 32 rotates to make the electric push rod 34 rotate to the horizontal position. The electric rotating shaft 371 drives the rotating wheel 372 to rotate. The rotating wheel 372 drives the electric push rod 34 to retract inward in the horizontal direction from the inlet and outlet 13 through gear meshing. When the electric push rod 34 is completely retracted into the receiving cavity 2, the built-in lifting platform assembly 3 is completely stored in the receiving cavity 2. The appearance of the main body of the steps 1 blends with the architectural environment and there are no protruding parts.

[0056] Furthermore, in this embodiment, to facilitate pedestrian passage, a passage scheme is provided in which the built-in lifting platform is raised as a whole to form a horizontal plane, such as... Figures 2 to 5As shown, when the main body of the steps 1 needs to be switched to the barrier-free horizontal passage mode, the user presses the "start" button on the first button assembly 61. The electric shaft 371 drives the rotating wheel 372 to rotate. The rotating wheel 372 drives the electric push rod 34 to extend outward horizontally from the inlet / outlet 13 through gear meshing. When the electric push rod 34 is fully extended, the first electric shaft 32 drives the electric push rod 34 to rotate to the ground. At the same time, the second electric shaft 36 drives the baffle 46 to rotate to the horizontal and fit against the ground. Then, the front baffle 42 is rotated 180° to the horizontal and fit against the ground by the first electric hinge 41. The rear baffle 43... Driven by the second electric hinge 44, the front baffle 42 flips and overlaps on the step. Pedestrians ride on the front baffle 42 and press the "raise" button on the first button assembly 61. The first electric shaft 32 drives the electric push rod 34 to rotate and rise to the height of the highest step. At this time, the horizontal plane formed by the front baffle 42 and the baffle 46 is level with the height of the highest step. Driven by the second electric hinge 44, the rear baffle 43 adjusts its angle until it forms the same horizontal plane as the front baffle 42 and the baffle 46 and overlaps on the highest step. At this time, the front baffle 42, the baffle 46 and the rear baffle 43 form a horizontal passage, allowing pedestrians to pass without obstacles.

[0057] The advantage of this embodiment lies in providing a convenient and effective design solution for building accessibility facilities. It can be specifically applied to indoor and outdoor connection scenarios (such as community gates, commercial complex entrances, public venue steps, and residential unit doors). Addressing the issue of limited space preventing the installation of compliant accessible ramps, it can directly replace traditional indoor and outdoor steps with height differences (or replace some steps with this device). Through the built-in lifting platform and retractable structural design, it achieves functional compatibility between normal pedestrian passage and wheelchair accessibility in scenarios with height differences. It does not require additional modifications to the original building foundation, has a simple appearance, and can be integrated with the original style of the building.

[0058] Example 2

[0059] Furthermore, in this embodiment, to facilitate passage for wheelchair users, a passage mode is provided that prevents falls when the built-in lifting platform is raised, as an improvement on Embodiment 1. Figures 6 to 9As shown, the linkage baffle assembly 4 also includes a handrail rotating part 45, a handrail 47, and a reinforcing component 48. The handrail 47 is symmetrically arranged on both sides of the baffle 46. The handrail 47 is hinged to the baffle 46 through the handrail rotating part 45. The handrail rotating part 45 has damping, which allows the handrail 47 to stop at any rotation position. The size of the handrail 47 can meet the requirement of being completely retracted into the receiving cavity 2. The reinforcing component 48 consists of two cross-shaped support bars (such as steel bars or alloy bars) arranged on the rear baffle 43. The reinforcing component 48 can enhance the load-bearing capacity of the rear baffle 43. The control assembly 6 also includes a second button assembly 62, which is set on the handrail 47. The second button assembly 62 includes four function buttons: "start", "raise", "retract", and "emergency stop". The buttons are connected to the controller 63 through wires. The controller 63 is connected to the electric push rod 34, the first electric hinge 41, the second electric hinge 44, the first electric rotating shaft 32, and the second electric rotating shaft 36 through wires and outputs action execution commands.

[0060] Specifically, such as Figures 6 to 9 As shown, when the step body 1 needs to be switched to the barrier-free lifting and anti-fall passage mode, the user presses the "start" button on the first button assembly 61. The electric shaft 371 drives the rotating wheel 372 to rotate. The rotating wheel 372 drives the electric push rod 34 to extend outward horizontally from the inlet / outlet 13 through gear meshing. When the electric push rod 34 is fully extended, the first electric shaft 32 drives the electric push rod 34 to rotate to the ground. At the same time, the second electric shaft 36 drives the baffle 46 to rotate to the horizontal and to be in contact with the ground. Then, the front baffle 42 is rotated 180° to the horizontal and to be in contact with the ground by the first electric hinge 41. The handrail 47 is rotated 90° to be perpendicular to the baffle 4 by the handrail rotating part 45. 6. The rear baffle 43 rotates 90° perpendicular to the baffle 46 under the action of the second electric hinge 44 to prevent the wheelchair user from falling off the built-in lifting platform assembly 3. At this time, the wheelchair user presses the "raise" button on the second button assembly 62, and the first electric rotating shaft 32 drives the electric push rod 34 to rotate and rise to the height of the highest step, so that the horizontal plane formed by the front baffle 42 and the baffle 46 is level with the height of the highest step. The rear baffle 43 rotates 90° under the action of the second electric hinge 44 to form the same horizontal plane as the front baffle 42 and the baffle 46, and overlaps on the highest step. At this time, the front baffle 42, the baffle 46 and the rear baffle 43 form a horizontal passage, which can pass through without obstacles.

[0061] If an abnormality occurs during operation (such as wheelchair jamming or component jamming), press the "Emergency Stop" button on the first button assembly 61 or the second button assembly 62 to stop all components. After the fault is cleared, press the "Retract" button. The controller 63 will automatically detect the current status of the device (such as platform height, horizontal extension length, and baffle position) and generate a customized reset sequence based on the detection results (such as: if it is in a semi-empty state, it will first descend vertically to the initial height and then wait for further instructions from the user; if it is in an extended state, it will first retract horizontally to the cavity and then wait for further instructions from the user).

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A barrier-free passage device characterized by comprising: It includes a step body, a receiving cavity, a built-in lifting platform assembly, a linkage baffle assembly, a wrapping component, and a control component; the receiving cavity is disposed inside the step body, the linkage baffle assembly is disposed in the receiving cavity, the wrapping component covers the outer surface of the step body, and the control component is used to control the passage mode switching of the step body; The built-in lifting platform assembly includes a load-bearing frame, a first electric rotating shaft, a guide rail, an electric push rod, a baffle mounting seat, a second electric rotating shaft, and a sliding assembly; The supporting frame is disposed inside the receiving cavity, the guide rail is disposed at the bottom of the supporting frame, the electric push rod is disposed along the outer side of the guide rail and parallel to the guide rail, and the sliding assembly is disposed at the end of the guide rail and fixedly connected to the guide rail; the electric push rod is provided with a gear meshing surface, and the sliding assembly includes a third electric rotating shaft and a rotating wheel, the third electric rotating shaft is fixedly connected to the rotating wheel, the rotating wheel is provided with end face teeth, and the rotating wheel meshes with the gear meshing surface of the electric push rod; The third electric rotating shaft is equipped with an electric drive module, which is used to drive the rotating wheel to rotate clockwise or counterclockwise, and drive the electric push rod to extend or retract through gear meshing; The baffle mounting base is located at the rear end of the support frame. The first electric rotating shaft and the second electric rotating shaft are respectively located at the ends of the electric push rod. The electric push rod is hinged to the guide rail through the first electric rotating shaft. The first electric rotating shaft is equipped with an electric drive module for driving the electric push rod to rotate. The linkage baffle assembly includes a first electric hinge, a front baffle, a rear baffle, a second electric hinge, and a middle baffle; the middle baffle is disposed inside the electric push rod, and the front end of the middle baffle is hinged to the electric push rod via a second electric rotating shaft; the front baffle is hinged to the middle baffle via the first electric hinge, and the rear baffle is hinged to the middle baffle via the second electric hinge; the front baffle and the rear baffle can rotate within the range of 0°-180° along the hinge axis and stop at any position.

2. The barrier device of claim 1, wherein, The main body of the step includes a fixed frame, expansion bolts, and an inlet / outlet. The wrapping component provides an opening for the inlet / outlet on the outer surface of the main body of the step.

3. The barrier device of claim 2, wherein, The expansion bolts are located at the bottom and sides of the fixed frame for fixing to the ground and wall.

4. The barrier device of claim 3, wherein, The receiving cavity has a cuboid structure, and the inlet and outlet are located on the middle step facade of the main step body.

5. The barrier device of claim 1, wherein, The linkage baffle assembly includes a handrail rotating part, a handrail, and reinforcing components.

6. The barrier device of claim 5, wherein, The handrail is hinged to both sides of the intermediate baffle via a handrail rotating part. The handrail rotating part is equipped with damping so that the handrail can stop at any rotating position.

7. The barrier device of claim 5, wherein, The reinforcing component consists of two intersecting support bars, which are fixed to the rear baffle.

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