Electric control stair step unit structure with variable functions

Abstract

The utility model discloses a function-variable electric control stair step unit structure which is specifically characterized in that a middle-layer stair is a variable stair, and the variable stair is formed by sequentially connecting a first node wood plate, a second node wood plate and a third node wood plate through hinges; the top end of the first node wood plate is connected with a vertical plate of an upper-layer stair through a hinge, and the lower end of the third node wood plate is connected with a plane plate of a lower-layer stair through a hinge. Supporting members for providing vertical support are arranged at the bottoms of the variable stairway and the lower-layer stairway; and telescopic web members for providing telescopic power and support are arranged at the bottom of the node wood plate II. According to the utility model, the shape of the staircase can be changed, a non-standard staircase form is formed, and the reasonable change of actual use functions is realized; two functions can be realized in one component, so that the space use is optimized; a variable structure can be formed on the premise of not increasing redundant stair components, cost is saved, and implementation feasibility is high.

Description

Technical Field

[0001] The utility model belongs to a multifunctional staircase structure, in particular to an electrically controlled staircase step unit structure with variable functions. Background Art

[0002] The size of stair steps used in daily transportation is selected based on the size of the adult's foot and the appropriate range of upward stepping. The tread size is generally 260-280mm, and the riser height is between 140-160mm. In buildings, especially in sheltered indoor atriums, large steps are often built for gatherings. The height must be adapted to the calf height of an adult when sitting or standing, generally 300-320mm, and the step depth is usually between 500-550mm, which is exactly the sum of the two stair step sizes. This provides theoretical space for the adjustable multifunctional stair structure. Utility Model Content

[0003] The utility model provides a function-variable electric-controlled stair step unit structure, which can be used as a passage staircase under normal circumstances, and can be changed in shape during gatherings, by retracting a tread and a riser through an internal electric-controlled support rod to become a large-sized staircase suitable for sitting or standing. The same space can realize two functions, which is conducive to the intensive use of space and facilities.

[0004] The utility model discloses a variable function electric controlled stair step unit structure, wherein the middle staircase is a variable staircase, and the variable staircase is composed of a node board 1, a node board 2 and a node board 3 connected in sequence through a movable hinge. The top of the node board 1 is connected to the vertical board of the upper staircase through a movable hinge, and the bottom of the node board 3 is connected to the flat board of the lower staircase through a movable hinge. A support member providing vertical support is arranged at the bottom of the variable staircase and the lower staircase; a telescopic brace providing telescopic power and support is arranged at the bottom of the node board 2.

[0005] Furthermore, three hinge points are respectively arranged at the two ends and the middle of the node plank 1, the node plank 2 and the node plank 3 in the long direction, and each hinge point can only rotate 90° around a fixed axis parallel to the long direction of the stair slab.

[0006] Furthermore, the telescopic rod is an electrically controlled telescopic rod, and the bottom of the electrically controlled telescopic rod is rigidly connected to the bottom of the stairs. When the telescopic rod is at its longest length, the variable stairs forms a staircase shape, which is fixed and has a corresponding load-bearing capacity. When the telescopic rod is at its shortest length, the variable stairs forms a grandstand shape, which is fixed and has a corresponding load-bearing capacity.

[0007] Furthermore, the telescopic web needs to be able to be electrically controlled to extend and retract under load.

[0008] Furthermore, the telescopic belly rod has a locking protection mechanism to prevent the structure from collapsing in the event of a power outage.

[0009] The beneficial technical effects of the utility model are:

[0010] 1. The utility model can realize the change of staircase shape, form non-standard staircase form, and realize reasonable change of actual use function.

[0011] 2. The utility model can realize two functions in one component, optimizing the use of space.

[0012] 3. The utility model can form a variable structure without adding extra stair components, thus saving costs and having high feasibility of implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the unfolded structure of the electric-controlled stair step unit.

[0014] In the figure: 11-node wooden board one; 12-node wooden board two; 13-node wooden board three; 2-upper stairs; 3-lower stairs; 4-telescopic web rod; 5-supporting member.

[0015] Figure 2 It is a schematic diagram of the closed state of the electric-controlled stair step unit structure of the utility model. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] The utility model is a kind of electric control stair step unit with variable functions. Figure 1 As shown, the middle staircase is a variable staircase, which is composed of a node plank 11, a node plank 2 12 and a node plank 3 13 connected in sequence by hinges. The top of the node plank 11 is connected to the vertical board of the upper staircase 2 by a hinge, and the bottom of the node plank 3 13 is connected to the flat board of the lower staircase 3 by a hinge. A support member 5 providing vertical support is set at the bottom of the variable staircase and the lower staircase 3; a telescopic web rod 4 providing telescopic power and support is set at the bottom of the node plank 2 12.

[0018] Furthermore, three hinge points are set at the two ends and the middle of the long direction of the node plank 11, the node plank 2 12 and the node plank 3 13, and the hinge points play a role of rotation and connection, and each hinge point can only rotate 90 degrees around a fixed axis parallel to the long direction of the stair slab. The material used has good compression resistance, tensile resistance and large rigidity, and can rotate relative to the stair slab within a certain limit in the system, which can ensure that the stair slab will not be relatively displaced when the system is deformed. Ensure the stability of the system under horizontal load and avoid structural instability when the stair slab is subjected to load.

[0019] Furthermore, the telescopic web 4 is an electrically controlled telescopic web, the bottom of which is rigidly connected to the bottom of the stairs, and the stair slab connected thereto needs to have sufficient rigidity and strength to be able to bear the bending moment caused by the load. The telescopic web 4 is required to reach the same plane at the same time when telescoping, ensuring that the electrically controlled deployment system does not generate excessive internal force to damage components or cause failure to automatically telescope.

[0020] like Figure 1 As shown, the electric stair step unit is constructed in an unfolded state, at which time the telescopic web 4 is the longest, which is the normal state of the staircase, fixed and has a corresponding load-bearing capacity. Figure 2 As shown, the electric-controlled stair step unit is constructed in a closed form, at which time the telescopic web 4 is the shortest, and the staircase is deformed and folded to form a stand form, which is fixed and has a corresponding bearing capacity.

[0021] Furthermore, when in use, according to the specific use requirements such as the predetermined size, shape, and prestressed state, all telescopic webs 4 are controlled to extend to a certain size to reach a predetermined state by means of a program or other means. When the telescopic webs 4 are in operation, the internal force of the system should be reduced as much as possible to avoid damage to the webs. In addition, the telescopic webs 4 must be equipped with a locking protection mechanism to prevent the structure from collapsing when the power is off.

Claims

1. A functionally variable electrically controlled stair step unit structure, characterized in that: The middle staircase is a variable staircase, which is composed of a node board 1 (11), a node board 2 (12) and a node board 3 (13) connected in sequence through movable hinges; the top of the node board 1 (11) is connected to the vertical board of the upper staircase (2) through a movable hinge, and the bottom of the node board 3 (13) is connected to the flat board of the lower staircase (3) through a movable hinge; a supporting member (5) for providing vertical support is arranged at the bottom of the variable staircase and the lower staircase (3); and a telescopic web rod (4) for providing telescopic power and support is arranged at the bottom of the node board 2 (12).

2. A functionally variable electrically controlled stair step unit structure according to claim 1, characterized in that: The node wood board 1 (11), the node wood board 2 (12) and the node wood board 3 (13) are respectively provided with three hinge points at both ends and the middle of the long direction, and each hinge point can only rotate 90 degrees around a fixed axis parallel to the long direction of the stair board.

3. The function-variable electrically controlled stair tread unit structure according to claim 1 is characterized in that: The telescopic rod (4) is an electrically controlled telescopic rod, the bottom of which is rigidly connected to the bottom of the staircase; when the telescopic rod (4) is at its longest length, the variable staircase forms a staircase shape, which is fixed and has a corresponding load-bearing capacity; when the telescopic rod (4) is at its shortest length, the variable staircase forms a grandstand shape, which is fixed and has a corresponding load-bearing capacity.

4. A function-variable electrically controlled stair tread unit structure according to claim 3, characterized in that: The telescopic web (4) needs to be able to be electrically controlled to extend and retract under load.

5. The function-variable electrically controlled stair tread unit structure according to claim 3 is characterized in that: The telescopic web (4) is provided with a locking protection mechanism to prevent the structure from collapsing when power is cut off.

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