CN211369311U

CN211369311U - Folding stair

Info

Publication number: CN211369311U
Application number: CN201921892128.8U
Authority: CN
Inventors: 林银莲
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-08-28
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to a folding stair, which is used for communicating an upper layer and a lower layer of a house and comprises a fixed plate, a movable plate and pedals, wherein the fixed plate is provided with a plurality of first steps which are vertically upward; two ends of the pedal are respectively hinged with the first step and the second step; when the folding stair is not needed, namely the movable plate, the pedals and the fixed plate are in the same plane, the folding stair is in a folded state; when the folding stair needs to be used, namely the movable plate moves to the two ends of the pedals towards the direction far away from the fixed plate and is vertical to the movable plate and the fixed plate, the folding stair is in an unfolded state. Generally speaking, the folding stair can be used for various floor transitions, can be folded into a plane, occupies a small space, and is stable and firm.

Description

Folding stair

Technical Field

The utility model relates to the technical field of household appliances, specifically a folding stair.

Background

The stair is indispensable as the component of traffic in the current floor in our life production process, and current stair are mostly stone material stair, and this type of stair all is fixed, and occupation space is big for the usable region in house diminishes. And the folding stair that has been used for jumping the layer is mostly the flexible folding stair that is used for the loft, still has the big problem of occupation space after the shrink, and has the structure complicacy, the operation is wasted time and energy scheduling problem to the folding stair that has now to jump between the ordinary floor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

For solving the above problem, the utility model provides a folding stair can be used to all kinds of floors to jump, collapsible one-tenth plane, and occupation space is little, and is stable firm.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a folding stair is used for communicating an upper layer and a lower layer of a house and comprises a fixed plate, a movable plate and pedals, wherein the fixed plate is provided with a plurality of first steps which are vertically upward; the number of the pedals is multiple, and two ends of each pedal are hinged with the first step and the second step respectively; this folding stair is equipped with expansion state and fold condition: when the folding stair is not needed, namely the movable plate, the pedals and the fixed plate are in the same plane, the folding stair is in a folded state; when the folding stair needs to be used, namely the movable plate moves to the two ends of the pedals towards the direction far away from the fixed plate and is vertical to the movable plate and the fixed plate, the folding stair is in an unfolded state.

Preferably, still include handrail and folding rod subassembly, the folding rod subassembly is equipped with two sets ofly, and two sets of folding rod subassemblies set up both ends about the movable plate respectively, and folding rod subassembly one end is kept away from fixed plate one side with the movable plate and is connected, and the other end is connected with the handrail, and the handrail has the expansion state of keeping away from the movable plate and is close to the fold condition of movable plate through the folding rod subassembly.

Preferably, the folding rod assembly comprises a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod and the second connecting rod are respectively hinged to the moving plate, the third connecting rod is hinged to one end, far away from the moving plate, of the first connecting rod and the second connecting rod, the moving plate, the first connecting rod, the second connecting rod and the third connecting rod form a planar four-bar mechanism, and one end, far away from the first connecting rod and the second connecting rod, of the third connecting rod is hinged to the armrest.

Preferably, the pedal device further comprises a supporting component and a fixing block, one end of the fixing block is fixedly connected with the lower side of the pedal, the other end of the fixing block extends out of the pedal in the direction of the moving plate, one end of the supporting component is hinged to one end, far away from the third connecting rod, of the first connecting rod in a ball pair mode, and the other end of the supporting component is hinged to one end, extending out of the pedal, of.

Preferably, the supporting component comprises two joint bearings and a telescopic piece, the two joint bearings are hinged to the third connecting rod and the fixed block ball pair respectively, and two joint bearings are connected to two ends of the telescopic piece respectively.

Preferably, the folding stair further comprises a limiting rod, the limiting rod comprises a hinge portion and a limiting portion, the hinge portion and the lower end of the fixed plate are hinged, the lower ends of the fixed plate and the movable plate are respectively provided with a limiting piece, when the folding stair is in a folded state, the limiting portion can rotate to the movable plate and is clamped with the limiting piece, and when the folding stair needs to be unfolded, the limiting portion can rotate to the fixed plate and is clamped with the limiting piece.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that: the folding stair is used for communicating an upper layer and a lower layer of a house and comprises a fixed plate, a movable plate and pedals, wherein the fixed plate is provided with a plurality of first steps which are vertically upward, the fixed plate is erected between the upper layer and the lower layer, the upper end and the lower end of the fixed plate are fixedly connected with the upper layer and the lower layer respectively, the movable plate is provided with a plurality of second steps which are vertically downward, the movable plate is erected between the upper layer and the lower layer and is arranged in parallel with the fixed plate, the upper end and the lower end of the movable plate can be abutted to the upper layer and the lower layer respectively, and the fixed plate can be installed on a wall surface between the upper layer and the lower layer or floors of the upper layer and the lower layer in a hinge connection mode, a bolt connection; the foldable stair is characterized in that a plurality of pedals are arranged, two ends of each pedal are hinged with the first step and the second step respectively, and the pedals pass through the first step and the second step which are opposite in direction, so that when the foldable stair is unfolded for use, two ends of each pedal are perpendicular to the movable plate and the fixed plate respectively and are positioned at dead points, and the stable firmness of the foldable stair in the using process is ensured; this folding stair is equipped with expansion state and fold condition: when the folding stair is not needed, namely the movable plate, the pedals and the fixed plate are in the same plane, the folding stair is in a folded state; when the folding stair needs to be used, namely the movable plate moves to the two ends of the pedals towards the direction far away from the fixed plate and is vertical to the movable plate and the fixed plate, the folding stair is in an unfolded state. Generally speaking, the folding stair can be used for various floor transitions, can be folded into a plane, occupies a small space, and is stable and firm.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention,

in the drawings:

fig. 1 shows a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 shows an expanded state of an embodiment of the invention;

fig. 3 shows an embodiment of the invention in a folded state;

FIG. 4 shows an enlarged view of section C of FIG. 2;

FIG. 5 shows an enlarged view of section D of FIG. 3;

fig. 6 shows an enlarged view of a portion E of fig. 3.

In the figure: the folding pedal comprises an upper layer A, a lower layer B, a fixing plate 1, a first step 10, a moving plate 2, a second step 20, a pedal 3, an armrest 4, a folding rod assembly 5, a first connecting rod 51, a second connecting rod 52, a third connecting rod 53, a supporting assembly 6, a joint bearing 60, a telescopic piece 61, a fixed block 7, a limiting rod 8, a hinged part 80, a limiting part 81 and a limiting part 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, a collapsible stairway for connecting an upper floor a and a lower floor B of a building comprises: fixed plate 1, movable plate 2 and footboard 3, fixed plate 1 is equipped with a plurality of vertical ascending first steps 10, it is concrete, the quantity of first steps 10 can be set for according to actual floor height, fixed plate 1 erects between upper A and lower floor B, both ends respectively with upper A and lower floor B fixed connection about fixed plate 1, it is concrete, according to the housing structure who uses, fixed plate 1 accessible hinge connection, mode such as bolted connection is installed on the wall between upper A and lower floor B or on the floor of upper A and lower floor B, thereby make this folding stair applicable in all kinds of house floors, in this embodiment, this folding stair is applied to between the floor that has the wall.

The movable plate 2 is provided with a plurality of second steps 20 which are vertically downward, specifically, the number of the second steps 20 is the same as that of the first steps 10, the movable plate 2 is erected between the upper layer A and the lower layer B and is arranged in parallel with the fixed plate 1, and the upper end and the lower end of the movable plate 2 can be respectively abutted to the upper layer A and the lower layer B; the pedals 3 are provided with a plurality of pedals 3, specifically, the number of the pedals 3 corresponds to that of the first steps 10 and the second steps 20, two ends of each pedal 3 are respectively hinged with the first steps 10 and the second steps 20, specifically, one end of each pedal 3 is hinged with the first step 10 which is vertically upward, so that the pedals 3 can be turned over to be in the same plane with the fixed plate 1, the other end of each pedal 3 is hinged with the second step 20 which is vertically downward, so that the movable plate 2 can be turned over to be in the same plane with the fixed plate 1 along with the pedals 3, so that the folding staircase can be folded into a plane when not in use, so that the occupied space is reduced, and in addition, the tread 3 passes through the first step 10 and the second step 20 which are opposite to each other, when the folding stair is unfolded for use, two ends of the pedal 3 are respectively perpendicular to the moving plate 2 and the fixed plate 1 and are positioned at dead points, so that the stability and firmness of the folding stair in the use process are ensured;

this folding stair is equipped with expansion state and fold condition: when the folding stair is not needed, namely the moving plate 2, the pedals 3 and the fixed plate 1 are in the same plane, the folding stair is in a folded state; when the folding stair needs to be used, namely the moving plate 2 moves to the two ends of the pedals 3 towards the direction away from the fixed plate 1 and is vertical to the moving plate 2 and the fixed plate 1, the folding stair is in an unfolded state. In addition, fixed plate 1, movable plate 2 and footboard 3 can adopt tensile strength and the strong material of pliability to make, in this embodiment, preferably bamboo composite layer material, when guaranteeing each position structural stability of this folding stair, also be convenient for this folding stair to make a round trip to switch in expansion state and fold condition, increase this folding stair's convenience.

According to the scheme, when the folding stair is not used, a user can upwards push the movable plate 2 firstly, the pedal 3 is removed from the dead point position, then the movable plate 2 is pushed towards the direction of the fixed plate 1, and therefore the folding stair is folded. Generally speaking, the folding stair can be used for various floor transitions, can be folded into a plane, occupies a small space, and is stable and firm.

Referring to fig. 4 and 5, this folding stair still includes handrail 4 and folding rod subassembly 5, and folding rod subassembly 5 is equipped with two sets ofly, and two sets of folding rod subassembly 5 set up both ends about the movable plate 2 respectively, and folding rod subassembly 5 one end is kept away from fixed plate 1 one side with the movable plate 2 and is connected, and the other end is connected with handrail 4, handrail 4 has the expansion state of keeping away from the movable plate 2 and is close to the fold condition of movable plate 2 through folding rod subassembly 5, and is concrete, when this folding stair is in fold condition, handrail 4 folds to 2 upsides of movable plate under folding rod subassembly 5's effect, and when this folding stair is in the expansion state, handrail 4 can keep away from 2 upsides of movable plate and set up to make this folding stair when not influencing its whole harmony, guarantee the safety that the user is using this folding.

Further, the folding rod assembly 5 includes a first connecting rod 51, a second connecting rod 52 and a third connecting rod 53, the first connecting rod 51 and the second connecting rod 52 are respectively hinged to the moving plate 2, the third connecting rod 53 is hinged to one end of the first connecting rod 51 and the second connecting rod 52, which is far away from the moving plate 2, the first connecting rod 51, the second connecting rod 52 and the third connecting rod 53 form a planar four-bar mechanism, one end of the third connecting rod 53, which is far away from the first connecting rod 51 and the second connecting rod 52, is hinged to the armrest 4, specifically, the first connecting rod 51 and the second connecting rod 52 of the planar four-bar mechanism can be folded upwards, so that the third connecting rod 53 is folded towards the moving plate 2, and thus the armrest 4 is driven to be folded towards the four-bar moving plate 2, and similarly, when the armrest 4 is pulled to move away from the direction.

Referring to fig. 4 and 5, the foldable stair further includes a supporting component 6 and a fixing block 7, one end of the fixing block 7 is fixedly connected to the lower side of the pedal 3, the other end of the fixing block extends out of the pedal 3 toward the movable plate 2, one end of the supporting component 6 is hinged to a ball pair at one end of the first link 51 far away from the third link 53, and the other end of the supporting component is hinged to a ball pair at one end of the fixing block 7 extending out of the pedal 3, specifically, when the foldable stair is in a folded state, the supporting component 6 and the foldable link component 5 are in the same plane, when the foldable stair is unfolded from the folded state to an unfolded state, the plane four-bar mechanism is unfolded due to the fact that the supporting component 6 is hinged to the ball pair of the first link 51 in space, the handrail 4 is further driven to move away from the direction 2, when the foldable stair is in the unfolded state, the stability of the handrail 4 is ensured when the user uses the handrail 4 on a folding stair.

Further, the support assembly 6 includes two joint bearings 60 and two telescopic members 61, the two joint bearings 60 are respectively hinged with the third connecting rod 53 and the fixed block 7 by a ball pair, and two ends of the telescopic member 61 are respectively connected with the two joint bearings 60, in this embodiment, the telescopic member 61 is preferably a nitrogen spring, so as to ensure that the support assembly 6 does not limit the swing of the first connecting rod 51 and the second connecting rod 52 at a certain angle while completing the hinge with the folding rod assembly 5 in space, and avoid causing interference to the folding and unfolding of the armrest 4.

Referring to fig. 6, the folding stair further comprises a limiting rod 8, the limiting rod 8 comprises a hinge portion 80 and a limiting portion 81 at two ends, the hinge portion 80 is hinged to the lower end of the fixed plate 1, the limiting portions 9 are arranged at the lower ends of the fixed plate 1 and the movable plate 2, and when the folding stair is in a folded state, the limiting portion 81 can rotate to the movable plate 2 and is clamped with the limiting portions 9, so that the situations that the movable plate 2 swings when the folding stair is in the folded state are avoided, and stable firmness and safety of the folding stair are guaranteed; when the folding stair needs to be unfolded, the limiting part 81 can rotate to the fixing plate 1 and is clamped with the limiting part 9, and interference to the moving plate 2 is avoided when the folding stair needs to be unfolded.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A folding stair for communicating an upper floor (A) with a lower floor (B) of a house, comprising:

the fixing plate (1) is provided with a plurality of first steps (10) which are vertically upward, the fixing plate (1) is erected between an upper layer (A) and a lower layer (B), and the upper end and the lower end of the fixing plate (1) are fixedly connected with the upper layer (A) and the lower layer (B) respectively;

the movable plate (2) is provided with a plurality of second steps (20) which are vertically downward, the movable plate (2) is erected between the upper layer (A) and the lower layer (B) and is arranged in parallel with the fixed plate (1), and the upper end and the lower end of the movable plate (2) can be respectively abutted to the upper layer (A) and the lower layer (B);

the number of the pedals (3) is multiple, and two ends of each pedal (3) are hinged to the first step (10) and the second step (20) respectively;

this folding stair is equipped with expansion state and fold condition: when the folding stair is not needed, namely the moving plate (2), the pedals (3) and the fixed plate (1) are in the same plane, the folding stair is in a folded state; when the folding stair needs to be used, namely the movable plate (2) moves to the direction far away from the fixed plate (1) and the two ends of the pedal (3) are vertical to the movable plate (2) and the fixed plate (1), the folding stair is in an unfolded state.

2. The foldable stair according to claim 1, further comprising handrails (4) and folding rod assemblies (5), wherein two groups of folding rod assemblies (5) are provided, the two groups of folding rod assemblies (5) are respectively arranged at the upper end and the lower end of the movable plate (2), one end of each folding rod assembly (5) is connected with one side, away from the fixed plate (1), of the movable plate (2), the other end of each folding rod assembly is connected with the corresponding handrail (4), and the handrails (4) are in an unfolded state away from the movable plate (2) and in a folded state close to the movable plate (2) through the folding rod assemblies (5).

3. The folding staircase according to claim 2, characterized in that said folding bar assembly (5) comprises a first connecting bar (51), a second connecting bar (52) and a third connecting bar (53), said first connecting bar (51) and said second connecting bar (52) being respectively hinged to said moving plate (2), said third connecting bar (53) being hinged to the ends of said first connecting bar (51) and said second connecting bar (52) remote from said moving plate (2), said first connecting bar (51), said second connecting bar (52) and said third connecting bar (53) forming a planar four-bar mechanism, the end of said third connecting bar (53) remote from said first connecting bar (51) and said second connecting bar (52) being hinged to said handrail (4).

4. The folding stair according to claim 3, further comprising a support assembly (6) and a fixed block (7), wherein one end of the fixed block (7) is fixedly connected with the lower side of the pedal (3), the other end of the fixed block extends out of the pedal (3) towards the moving plate (2), one end of the support assembly (6) is hinged to a ball pair at one end of the first connecting rod (51) far away from the third connecting rod (53), and the other end of the support assembly is hinged to a ball pair at one end of the fixed block (7) extending out of the pedal (3).

5. Folding staircase according to claim 4, characterised in that said support assembly (6) comprises two articulated bearings (60) and a telescopic element (61), said articulated bearings (60) being respectively articulated with a third connecting rod (53) and with a fixed block (7) ball pair, said telescopic element (61) being connected at its two ends respectively to two articulated bearings (60).

6. The foldable stair according to claim 1, further comprising a limiting rod (8), wherein the limiting rod (8) comprises a hinge portion (80) and a limiting portion (81) at two ends, the hinge portion (80) is hinged to the lower end of the fixed plate (1), the lower ends of the fixed plate (1) and the movable plate (2) are respectively provided with a limiting piece (9), when the foldable stair is in a folded state, the limiting portion (81) can rotate to the movable plate (2) and is clamped with the limiting piece (9), and when the foldable stair needs to be unfolded, the limiting portion (81) can rotate to the fixed plate (1) and is clamped with the limiting piece (9).