CN212292430U - Flat step stair device - Google Patents

Abstract

The utility model provides a flat step stair device relates to stair device technical field, but including a plurality of footboard bodies of adaptation laminating on ladder at external each level, drive each the cam mechanism of footboard body elevating movement and messenger cam mechanism pivoted actuating mechanism, it is adjacent via between the footboard body cam mechanism's rotation corresponds the drive the relative reciprocal elevating movement of footboard body, so that it is double-phase adjacent the footboard body can remove to same level, and has at least one the configuration of laminating mutually of footboard body and its corresponding ladder. The utility model discloses need not open up new installation space, install this device and can move on original stair, this device simple structure installation cost is low moreover, is convenient for maintain, and can satisfy many people use when to solve not having the elevator go up the high building difficulty and the inconvenient problem of old man's upstairs and downstairs.

Description

Flat step stair device

Technical Field

The utility model relates to a stair device technical field particularly, relates to a flat step stair device.

Background

With the development of the times, the elevator which is a device convenient for going upstairs and downstairs is visible everywhere, people have to say that the elevator is convenient for life, and the elevator is very important when people go upstairs and downstairs and move east and west. However, some old high buildings do not have space for modifying the elevator, some users worry about potential safety hazard caused by the fact that the elevator cannot be maintained in place due to the influence of safety accidents of the elevator, and some families cannot bear the cost generated by installing the elevator, so that the buildings which adopt stairs to go upstairs and downstairs are maintained.

The stairs with two or three layers are acceptable for most people, but people with high-rise buildings, particularly those with loads, have poor physical strength and physical discomfort are not few. Going up and down stairs is not a difficult task for young people, but can be called 'difficult to go up and down youth' for old people, and leg pain and difficulty in bending and stretching knees are well known as common diseases of old people. The existing device for assisting the old to go up and down stairs is not perfect, the existing assisting device is that a handrail which can be pushed is added on one side of a wall, when the old goes up and down stairs, the old exerts force on legs and arms simultaneously to relieve the burden of the legs, and the device does not solve the fundamental problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a flat step stair device aims at improving not to have the inconvenient scheduling problem of high building difficulty and old colony stair of going up and down on the elevator.

The utility model adopts the following scheme:

a flat-step stair device comprises a plurality of pedal bodies which can be attached to each external step in an adaptive manner, a cam mechanism for driving each pedal body to move up and down, and a driving mechanism for driving the cam mechanism to rotate; the pedal bodies correspondingly reciprocate to move up and down through the rotation of the cam mechanism, two adjacent pedal bodies can move to the same horizontal height, and at least one pedal body is attached to the corresponding step.

As a further improvement, the pedal bodies each include a horizontal portion and at least one vertical portion; the horizontal part is used for supporting a user and can be attached to an external ladder; the vertical part is abutted against the cam mechanism, and the cam mechanism rotates to drive the vertical part to move up and down.

As a further improvement, the vertical portion of the pedal body is disposed on one side of the horizontal portion; the stair device also comprises at least one supporting frame body arranged on one side wall of the external ladder, and the supporting frame body is arranged in a shape similar to the wall; the pedal body is arranged on the supporting frame body at intervals of lifting and sliding along each external step arrangement direction through the vertical part, and the horizontal part is approximately vertically arranged on one side of the supporting frame body; the drive mechanism and the cam mechanism are both disposed in the support frame.

As a further improvement, the support frame includes a mounting area disposed on one side of the landing and a working area connected to the mounting area and disposed along a direction of arrangement of the outer steps.

As a further improvement, the driving mechanism is connected with the cam mechanism through a reduction gear set, the driving mechanism comprises a motor, and an output shaft of the motor is meshed with the reduction gear set; the driving mechanism and the reduction gear set are located in the installation area, and the pedal body and the cam mechanism are located in the working area.

As a further improvement, at least one half-tooth gear is arranged in the reduction gear set so as to correspondingly control the motor to transmit to the cam mechanism, and a transmission neutral gear exists, so that the cam mechanism stops rotating in the transmission neutral gear.

As a further improvement, the pedal body is correspondingly provided with one cam mechanism, the adjacent cam mechanisms are mutually and synchronously connected through a transmission piece, and the cam mechanism close to the reduction gear set is connected with the last-stage gear of the reduction gear set.

As a further improvement, the cam mechanisms each comprise a driving wheel and a cam rotating synchronously with the driving wheel; the driving wheels are synchronously connected in a transmission way and are arranged in a straight line along the arrangement direction of external steps; the driving wheels correspond to the cams one to one and are arranged on one side of the supporting frame body, and each cam is abutted and supports the corresponding vertical part so as to drive the pedal body to move up and down; wherein the size of each cam is consistent.

As a further improvement, two adjacent cams rotate synchronously to drive the pedal bodies to move up and down, so that the horizontal parts of the two adjacent pedal bodies are kept flat, one pedal body is at the highest position rotating along with the cams, and the other pedal body is at the lowest position rotating along with the cams and is attached to the step plane.

As a further improvement, the support frame comprises hydraulic rods arranged between the side wall and the support frame body and arranged at the front end and the rear end of the support frame body, and the hydraulic rods can move in a telescopic mode to support the support frame body to move up and down.

By adopting the technical scheme, the utility model discloses can gain following technological effect:

the utility model provides a flat step stair device, via actuating mechanism so that cam mechanism drives footboard body elevating reciprocating motion, adjacent footboard body can keep an equal level in same level under the drive of cam, and have a footboard body and outside ladder to laminate mutually at least, make the user of going upstairs and downstairs step on earlier the footboard body with ground laminating, rise or descend to the position of keeping an equal level with adjacent footboard body along with this footboard body, the user steps on this adjacent footboard body again, rise or descend to the footboard body position of keeping an equal level with it along with this adjacent footboard body again, so reciprocal messenger user need not lift the leg like that going upstairs and downstairs, only need like level ground walking, alright go upstairs and downstairs. And, the utility model discloses need not open up new installation space, install this device and can move on original stair, this device simple structure installation cost is low moreover, is convenient for maintain, and can satisfy many people use when to solve not having the inconvenient problem of high building difficulty and old man's upstairs and downstairs on the elevator.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a front view of the structure of a flat-step stair device according to an embodiment of the present invention;

FIG. 2 is a rear elevational view of the structure of the flat-step stair arrangement of FIG. 1;

FIG. 3 is another perspective view of the flat-stepped stair device of FIG. 1;

FIG. 4 is a schematic view of the stair traversing device of FIG. 1 while a user is upstairs;

fig. 5 is a schematic view of the stair traversing device of fig. 1 when a user steps down.

Icon: 1-step, 2-pedal body; 21-a horizontal portion; 22-a vertical portion; 23-a roller; 3-a cam mechanism; 31-a top wheel; 32-cam; 4-a drive mechanism; 41-a motor; 5-walls; 6-supporting the frame body, 61-installing area; 62-a working area; 621-a sliding groove; 622-guide groove; 7-a reduction gear set; 71-half tooth gear; 8-a transmission member; 81-belt pulley; 82-a belt; 9-a hydraulic rod; 10-a protective plate; 11-arm-rest.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

With reference to fig. 1 to 5, the present embodiment provides a flat-step stair device, which includes a plurality of tread bodies 2 that can be attached to each external step 1, a cam mechanism 3 that drives each tread body 2 to move up and down, and a driving mechanism 4 that rotates the cam mechanism 3; the pedal bodies 2 are correspondingly and reciprocally lifted and lowered through the rotation of the cam mechanism 3, and two adjacent pedal bodies 2 can be moved to the same horizontal height, at least one pedal body 2 is attached to the corresponding step 1. It should be noted that, the operation of the driving mechanism 4 is controlled by a switch (not shown), the switch can be configured at a side close to the user and manually turned on by the user, or an inductive switch is disposed at the pedal body 2, and the structure of the switch-controlled driving mechanism 4 is prior art and will not be described herein again.

The utility model provides a flat step stair device, via actuating mechanism 4 so that cam mechanism 3 drives 2 reciprocating motion that go up and down of footboard body, adjacent footboard body 2 can keep level in same level under cam 32's drive, and have at least a footboard body 2 and laminating mutually of outside ladder 1, make the user of stair about earlier step on the footboard body 2 with the laminating of ground, along with this footboard body 2 rise or descend to the position of keeping level with adjacent footboard body 2, the user steps on this adjacent footboard body 2 again, along with this adjacent footboard body 2 rise or descend to the footboard body 2 position of keeping level with it next, so reciprocal make the user need not lift the leg as if the stair about that, only need as if level land walking is like, alright stair about. And, the utility model discloses need not open up new installation space, install this device and can move on original stair, this device simple structure installation cost is low moreover, is convenient for maintain, and can satisfy many people use when to solve not having the inconvenient problem of high building difficulty and old man's upstairs and downstairs on the elevator.

Further, the pedal body 2 includes a horizontal portion 21 and at least one vertical portion 22, the horizontal portion 21 is used for supporting a user, and can be attached to the external ladder 1, the vertical portion 22 abuts against the cam mechanism 3, and the vertical portion 22 is rotated to drive the vertical portion 22 to move up and down through the cam mechanism 3. In particular, the vertical portion 22 is a rectangular frame, a top wheel 31 is disposed in the middle of the upper end frame of the rectangular frame, the top wheel 31 abuts against the cam mechanism 3, and the cam mechanism 3 rotates to abut against and drive the top wheel 31 to move up and down, so as to correspondingly lift the pedal body 2.

In the present embodiment, the pedal body 2 is substantially L-shaped, and only one vertical portion 22 is disposed on one side of the horizontal portion 21. The stair device also comprises at least one supporting frame body 6 arranged on one side wall 5 of the external stairs 1, and the supporting frame body 6 is arranged in a shape similar to the wall 5; the pedal body 2 is arranged on the supporting frame 6 at intervals of lifting and sliding through the vertical part 22 along the arrangement direction of each external stair 1, the horizontal part 21 is approximately vertically arranged on one side of the supporting frame 6, and the driving mechanism 4 and the cam mechanism 3 are both arranged in the supporting frame 6, so that the stair device is convenient to assemble, apply and detach. Specifically, in this embodiment, the supporting frame 6 is disposed on only one side of the outer step 1, the supporting frame 6 is provided with a sliding groove 621 and a guiding groove 622, the vertical portion 22 of the pedal body 2 is sleeved in the sliding groove 621 and can move up and down along the sliding groove 621, and the top portion disposed on the vertical portion 22 is accommodated in the guiding groove 622 to support the pedal body 2 to reciprocate linearly along the guiding groove 622. Further, rollers are symmetrically arranged on two sides of the rectangular frame body at the end part of the vertical part 22 close to one side of the supporting frame body 6, and the rollers are abutted against the outer wall of the supporting frame body 6 and can roll along the outer wall. The arrangement of the rollers is beneficial to improving the lifting stability of the pedal body 2, and the friction force of the pedal relative to the supporting frame body 6 during lifting and moving can be reduced, so that the pedal is lifted stably and smoothly.

It should be noted that, in other embodiments, the two side walls of the external step 1 are configured with two supporting frames 6, and the vertical portion 22 of the pedal body 2 is configured with two and located at the left and right sides of the horizontal portion 21 respectively, and configured to slidably lift with each supporting frame 6, and the horizontal portion 21 is disposed between the two supporting frames 6 to ensure a smooth bearing during use.

In this embodiment, the support frame 6 includes a mounting area 61 disposed on one side of the landing and a working area 62 connected to the mounting area 61 and disposed along the arrangement direction of the outer steps 1. It should be noted that the driving mechanism 4 is connected to the cam mechanism 3 via the reduction gear set 7, the driving mechanism 4 includes a motor 41, an output shaft of the motor 41 is engaged with the reduction gear set 7, the driving mechanism 4 and the reduction gear set 7 are both located in the installation area 61, and the pedal body 2 and the cam mechanism 3 are both located in the working area 62.

Preferably, at least one half-toothed gear 71 is provided in the reduction gear set 7, so that a transmission neutral exists when the control motor 41 transmits to the cam mechanism 3, and the cam mechanism 3 stops rotating in the transmission neutral. When the cam 32 stops moving, the two adjacent pedal bodies 2 are level at the same height, and at least one step 1 outside the pedal body 2 is attached, so that a user can step into the next pedal body 2 in the idle gear period of stopping rotating, and the user can go upstairs and downstairs leisurely.

Specifically, in the present embodiment, the pedal body 2 is correspondingly provided with a cam mechanism 3, and each adjacent cam mechanism 3 is synchronously connected with each other through a transmission member 8, and the cam mechanism 3 close to the reduction gear set 7 is connected with the last-stage gear of the reduction gear set 7. On the side of the support frame 6 close to the wall 5, a pulley 81 is provided, connected to a final reduction gear, the reduction gear set 7 making the angular speed finally transmitted to this pulley 81 meet the requirements of the movement of the cam mechanism 3.

In this embodiment, the cam mechanisms 3 each include a driving wheel and a cam 32 that rotates synchronously with the driving wheel; the driving wheels are synchronously connected in a transmission way, are in one-to-one correspondence with the cams 32 along the arrangement direction of the external ladder 1 and are arranged on one side of the supporting frame body 6, and each cam 32 is abutted and supported on the corresponding vertical part 22 so as to drive the pedal body 2 to move up and down; the size of each cam 32 is consistent, so that two adjacent pedal bodies 2 can be driven by the respective cam 32 to move to the same horizontal height corresponding to the pedal body 2 at the highest position and the pedal body 2 at the lowest position so as to be horizontally arranged in the synchronous rotation process of the cams 32. The driving wheels are belt pulleys 81 which are connected with the reduction gear and have the same specification, the belt pulleys 81 are arranged on one side, close to the wall 5, of the supporting frame body 6, the cam 32 is arranged on the other side, opposite to the driving wheels, and is connected with the driving wheels through a transmission piece 8 to rotate along with the belt pulleys 81, the driving wheels which correspond to the cam 32 in a one-to-one mode are in a straight line along the arrangement direction of the external ladder 1 and are connected through a belt 82 to enable the belt pulleys 81 to rotate synchronously. The pulley 81 connected to the reduction gear and the pulley 81 connected to the cam 32 closest to the reduction gear are synchronously connected by a belt 82. It should be noted that, the transmission connection between the pulley 81 and the driving wheel is not limited, and in other embodiments, the transmission modes such as a chain and a sprocket, or a gear and a rack may be adopted, which all fall within the protection scope of the present embodiment.

In this embodiment, two adjacent cams 32 rotate synchronously to drive the pedal bodies 2 to move up and down, so that the horizontal portions 21 of two adjacent pedal bodies 2 are level. And the maximum value and the minimum value of the two adjacent cams 32 are just opposite to each other when the two cams are abutted and supporting the lifting of the pedal body 2, so that one pedal body 2 is at the highest position moving along with the cams 32, and the other pedal body 2 is at the lowest position moving along with the cams 32 and is attached to the plane of the step 1.

Wherein, dispose hydraulic stem 9 between wall 5 and braced frame 6 and both ends around braced frame 6, hydraulic stem 9 can bear braced frame 6 and reciprocate to thereby lift each footboard body 2 correspondingly and keep away from respective ladder 1, thereby conveniently to the cleanness of this stair device and outside stair. In particular, a protective plate 10 is disposed on the supporting frame 6 to form a protective space along the outer walls of the supporting frame 6 and the wall 5, thereby improving the safety of the device during use. Furthermore, a handrail 11 is arranged on one side of the protection board 10 close to the user along the arrangement direction of the external stairs 1, so that on one hand, the stress of the user can be assisted, and on the other hand, the balance of the user using the flat-step stair device can be ensured.

The stair device of the embodiment works as follows:

referring to fig. 4 again, when the user climbs the stairs, the user horizontally steps on the pedal body 2 attached to the ground, the device is started by the switch, when the user starts to ascend along with the stepped pedal body 2 (first step), the adjacent pedal body 2 (second step) is in a descending state, when the pedal body 2 (first step) ascends to a position level with the adjacent pedal body 2 (second step), the two pedal bodies 2 stop ascending or descending, the adjacent pedal body 2 (second step) is attached to the step 1, and the user horizontally steps on the adjacent pedal body 2 (second step), so that the step 1 is formed. After the intermittent neutral gear is finished, the user continues to rise along with the adjacent pedal body 2 (second step), and when the user keeps level with the next adjacent pedal body 2 (third step), the user steps into the next pedal body 2 (third step) again, so that the purpose of going upstairs like walking on the flat ground is achieved in a reciprocating manner.

Referring to fig. 5 again, when the user steps on the pedal body 2 (penultimate step) that is level with the ground, the device is started by the switch, when the user starts to descend along with the stepped pedal body 2 (penultimate step), the adjacent pedal body 2 (penultimate step) is in a rising state, when the pedal body 2 (penultimate step) descends to a position that is level with the adjacent pedal body 2 (penultimate step), the two pedal bodies 2 stop descending or ascending, the pedal body 2 (penultimate step) where the user is located is attached to the step, and the user steps on the adjacent pedal body (penultimate step) horizontally, so that a step is formed. After the intermittent neutral gear is finished, the user continues to descend along with the adjacent pedal body 2 (the second last step), and when the user keeps level with the next adjacent pedal body 2 (the third last step), the user steps into the next pedal body 2 (the third last step) again, so that the purpose of going downstairs like walking on the flat ground is achieved.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection.

Claims (10)

1. A flat-step stair device, comprising: the pedal comprises a plurality of pedal bodies which can be attached to each external step in an adaptive manner, a cam mechanism for driving each pedal body to move up and down, and a driving mechanism for driving the cam mechanism to rotate;

the pedal bodies correspondingly reciprocate to move up and down through the rotation of the cam mechanism, two adjacent pedal bodies can move to the same horizontal height, and at least one pedal body is attached to the corresponding step.

2. The flat-step stair device of claim 1, wherein the step bodies each comprise a horizontal portion and at least one vertical portion; the horizontal part is used for supporting a user and can be attached to an external ladder; the vertical part is abutted against the cam mechanism, and the cam mechanism rotates to drive the vertical part to move up and down.

3. The device of claim 2, wherein the vertical portion of the step body is disposed on one side of the horizontal portion; the stair device also comprises at least one supporting frame body arranged on one side wall of the external ladder, and the supporting frame body is arranged in a shape similar to the wall; the pedal body is arranged on the supporting frame body at intervals of lifting and sliding along each external step arrangement direction through the vertical part, and the horizontal part is approximately vertically arranged on one side of the supporting frame body; the drive mechanism and the cam mechanism are both disposed in the support frame.

4. The device of claim 3, wherein the support frame comprises a mounting area disposed on one side of the landing and a working area connected to the mounting area and disposed along a direction of deployment of the outer steps.

5. The device according to claim 4, wherein said drive mechanism is coupled to said cam mechanism via a reduction gear set, said drive mechanism including a motor having an output shaft engaged with said reduction gear set; the driving mechanism and the reduction gear set are located in the installation area, and the pedal body and the cam mechanism are located in the working area.

6. The device as claimed in claim 5 wherein at least one half-toothed gear is provided in the reduction gear set to correspond to a drive neutral when the motor is controlled to drive the cam mechanism such that the cam mechanism stops rotating in the drive neutral.

7. The device as claimed in claim 5, wherein the pedal bodies are provided with a cam mechanism respectively, and the adjacent cam mechanisms are synchronously connected with each other by a transmission member, and the cam mechanism adjacent to the reduction gear set is connected with the last stage gear of the reduction gear set.

8. The flat-step stair device of claim 7, wherein the cam mechanisms each comprise a drive wheel and a cam that rotates in synchronization with the drive wheel; the driving wheels are synchronously connected in a transmission way and are arranged in a straight line along the arrangement direction of external steps; the driving wheels correspond to the cams one to one and are arranged on one side of the supporting frame body, and each cam is abutted and supports the corresponding vertical part so as to drive the pedal body to move up and down; wherein the size of each cam is consistent.

9. The device as claimed in claim 8, wherein two adjacent cams rotate synchronously to drive the pedal bodies to move up and down so that the horizontal portions of the two adjacent pedal bodies are level, one of the pedal bodies is at the highest position and the other pedal body is at the lowest position and fits with the step plane.

10. The device of claim 3, comprising hydraulic rods between the side walls and the support frame and disposed at the front and rear ends of the support frame, wherein the hydraulic rods are capable of telescoping movement to support the support frame to move up and down.

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