CN211691155U

CN211691155U - Electric folding attic stair

Info

Publication number: CN211691155U
Application number: CN201922056952.6U
Authority: CN
Inventors: 沈小虎
Original assignee: Wuxi Outlets Intelligent Technology Co ltd
Current assignee: Wuxi Outlets Intelligent Technology Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-10-16
Anticipated expiration: 2029-11-25

Abstract

The utility model belongs to the technical field of electric stair, especially, be an electronic folding loft stair, including stair frame, upset ladder and extension ladder, the stair frame is the rectangle framework, the both sides fixed mounting on stair frame base has the axle bed, two alternate between the axle bed and install the pivot, the middle part of pivot alternates and is connected with two channel beams, two the equidistance is fixed with the first footboard constitution that eight are parallel to each other between the channel beam the upset ladder, two the equal activity gomphosis in middle part of channel beam has the removal slider. The utility model discloses a upset ladder and extension ladder can overturn through the pivot, raise or descend between stair frame and ground, and simultaneously, the extension ladder can carry out relative slip along the upset ladder through removing the slider, and the relative position of the two is adjusted through the rotation of transmission lead screw in the rotation in-process of flexible motor to place in putting into the stair frame, reduce occupation space, promote pleasing to the eye degree.

Description

Electric folding attic stair

Technical Field

The utility model relates to an escalator technical field specifically is an electronic folding loft stair.

Background

A loft, namely a room positioned at the lower part of a sloping roof of a house, is a building structure, namely the space of the building is higher, a layer of loft floor slab is manufactured in the middle, the loft floor slab is generally used for private spaces of storage, office work, people living and the like, loft decoration is very popular in recent years, particularly, the decoration of a small loft is popular among young people, people add stairs at the entrance of the loft in order to conveniently enter the loft, the stairs have the defects of convenience, rapidness and poor safety, and at present, people generally use electric power as power for going upstairs and downstairs, but the conventional elevator is large in size, high in manufacturing cost and not suitable for families, particularly the loft.

The current attic stairs therefore suffer from the following problems:

1. when the existing attic stairs are folded and unfolded, the operation is complex, the room space is occupied, and the attractiveness and the practicability of the room are reduced.

2. Present loft stair are mostly manually opened and folding through the manual work, complex operation and consume time long when using.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an electronic folding loft stair has solved present loft stair when receiving and releasing, and complex operation just occupies the space in room, causes that the room is pleasing to the eye degree and the practicality descend and open and folding through artifical manual, complex operation just expends the problem of long time when using.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an electric folding loft stair comprises a stair outer frame, a turnover ladder and an extension ladder, wherein the stair outer frame is a rectangular frame body, shaft seats are fixedly arranged on two sides of the bottom edge of the stair outer frame, a rotating shaft is arranged between the two shaft seats in an inserting way, the middle part of pivot alternates and is connected with two channel beams, two the equidistance is fixed with eight first footboards that are parallel to each other between the channel beam and constitutes the upset ladder, two the equal activity gomphosis of middle part of channel beam has the removal slider, two the channel beam is close to the one end of pivot all is fixed with flexible motor, two the output shaft of flexible motor all is connected with transmission lead screw, two transmission lead screw all closes to spiral and closes to penetrate and its corresponding removal slider, two the top of removing the slider all fixedly connected with shifting beam, two parallel fixed eight second footboards between the shifting beam constitute the extension ladder.

As a preferred technical scheme of the utility model, the equal fixedly connected with wire rope in both sides of extension ladder bottom, the both sides of the stair frame other end all have concatenated winding roller and worm wheel through the round pin axle is coaxial, wire rope connect in the winding roller, fixed mounting has gear motor in the stair frame, gear motor's output shaft has the worm, the worm meshing the worm wheel.

As a preferred technical scheme of the utility model, one side of stair frame is fixed with the control box, install the control unit, wireless communication module and four relays in the control box, wireless communication module electric connection the control unit's input, the control unit's output electric connection is four the control end of relay, four the output electric connection of relay is two flexible motor and two gear motor.

As an optimal technical scheme of the utility model, the both ends of two flute profile roof beams and limit switch is all installed to the inboard of stair frame, limit switch electric connection the control unit's signal input part.

As an optimal technical scheme of the utility model, two the top surface of channel beam is equipped with the inside flanging, the inside flanging pressfitting the avris of removing the slider top surface.

(III) advantageous effects

Compared with the prior art, the utility model provides an electronic folding loft stair possesses following beneficial effect:

1. this electronic folding loft stair, turnover ladder and extension ladder can overturn through the pivot, raise or descend between stair frame and ground, and simultaneously, the extension ladder can carry out the relative slip along the turnover ladder through removing the slider, and the relative position of the two is adjusted through the rotation of transmission lead screw in the rotation in-process of flexible motor to place in putting into the stair frame, reduce occupation space.

2. This electronic folding loft stair, the user sends control command to wireless communication module through hand-held controller or mobile communication terminal, and wireless communication module conveys the instruction to the control unit, and the control unit moves through two flexible motors of four relay control and two gear motor, has realized the automatic extension of stair and has receive and release labour saving and time saving.

Drawings

FIG. 1 is a schematic view of the subjective structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the structure of the transmission mechanism of the present invention;

fig. 4 is a schematic view of the structure of the sliding block for the embedded slot beam of the present invention.

In the figure: 1. a stair outer frame; 2. a shaft seat; 3. a rotating shaft; 4. a channel beam; 401. inward flanging; 5. a first pedal; 6. turning over the ladder; 7. moving the slide block; 8. a telescopic motor; 9. a transmission screw rod; 10. a moving beam; 11. a second pedal; 12. an extension ladder; 13. a wire rope; 14. a winding roller; 15. a worm gear; 16. a reduction motor; 17. a worm; 18. a control box; 19. a control unit; 20. a wireless communication module; 21. a relay; 22. and a limit switch.

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.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: an electric folding loft stair comprises a stair outer frame 1, the stair comprises a turnover ladder 6 and a telescopic ladder 12, the stair outer frame 1 is a rectangular frame body, shaft seats 2 are fixedly mounted on two sides of the bottom edge of the stair outer frame 1, rotating shafts 3 are arranged between the two shaft seats 2 in an inserting mode, the middle of each rotating shaft 3 is connected with two groove-shaped beams 4 in an inserting mode, eight mutually parallel first pedals 5 are fixed between the two groove-shaped beams 4 at equal intervals to form the turnover ladder 6, moving sliding blocks 7 are movably embedded in the middle of the two groove-shaped beams 4, telescopic motors 8 are fixed at one ends, close to the rotating shafts 3, of the two groove-shaped beams 4, output shafts of the two telescopic motors 8 are connected with transmission screw rods 9, the two transmission screw rods 9 are screwed to penetrate through corresponding moving sliding blocks 7, moving beams 10 are fixedly connected to the top ends of the two moving sliding blocks 7, and eight second pedals 11 are fixed between the two moving beams.

In this embodiment, upset ladder 6 and extension ladder 12 can overturn through pivot 3, thereby raise or descend between stair frame 1 and ground, and simultaneously, extension ladder 12 can carry out the relative slip along upset ladder 6 through removing slider 7, the relative position of the two carries out corresponding regulation through the rotation of transmission lead screw 9 and loft and the height on ground at the rotation in-process of telescopic motor 8, the regulation of ladder length has been realized, when the ladder increases in length, it falls to the bottom surface, people's climbing of being convenient for, when its length shortens, can raise it, so that place in putting into stair frame 1, in order to reduce occupation space, promote pleasing to the eye degree.

Specifically, the two sides of the bottom end of the extension ladder 12 are fixedly connected with steel wire ropes 13, the two sides of the other end of the stair outer frame 1 are coaxially connected with a winding roller 14 and a worm wheel 15 in series through pin shafts, the steel wire ropes 13 are wound on the winding roller 14, a speed reducing motor 16 is fixedly installed in the stair outer frame 1, an output shaft of the speed reducing motor 16 is connected with a worm 17, and the worm 17 is meshed with the worm wheel 15.

In this embodiment, draw in when needs in the utility model discloses during stair, to 16 forward circular telegrams of gear motor, gear motor 16 drives worm 17 forward and rotates, and then meshes worm wheel 15 forward and rotate, and worm wheel 15 drives and rotates rather than coaxial winding roller 14 forward, winds wire rope 13, and the bottom of wire rope 13 pulling extension ladder 12 is raised, has realized the utility model discloses the operation of drawing in of stair, as above, need put down the utility model discloses during stair, can to 16 reverse circular telegrams of gear motor.

Specifically, one side of the stair outer frame 1 is fixed with a control box 18, a control unit 19, a wireless communication module 20 and four relays 21 are installed in the control box 18, the wireless communication module 20 is electrically connected with the input end of the control unit 19, the output end of the control unit 19 is electrically connected with the control ends of the four relays 21, and the output ends of the four relays 21 are electrically connected with two telescopic motors 8 and two speed reducing motors 16.

In this embodiment, a user sends a control command to the wireless communication module 20 through a handheld controller or a mobile communication terminal, the wireless communication module 20 transmits the received command to the control unit 19, the control unit 19 performs analysis and calculation according to its own program and the current state of the electric folding ladder, and then outputs a corresponding execution signal, and the execution signal is executed by four relays 21, and then powers on or powers off the two telescopic motors 8 and the two reduction motors 16, so that the two telescopic motors 8 drive the extension ladder 12 to extend or retract, and the two reduction motors 16 drive the turning ladder 6 and the extension ladder 12 to lift up or fall down, wherein the control unit 19 adopts an MCU chip, which is an integrated circuit chip formed by integrating a central processor with data processing capability, a random access memory, a read only memory, and an integrated circuit, the system has the functions of analyzing and calculating signals, and outputs the transportation result through the output port of the system, so that the working process of the system can be well controlled; the wireless communication module 20 is a WIFI chip, a GSM chip, or a CDMA chip, and these three chips are all the currently mature wireless communication technologies, and can well transmit control instructions, and the cost is low.

Specifically, limit switches 22 are installed at two ends of the two channel beams 4 and at the inner side of the stair outer frame 1, and the limit switches 22 are electrically connected to the signal input end of the control unit 19.

In this embodiment, limit switch 22 is used for detecting the position of moving slider 7, when limit switch 22 detected moving slider 7 and moved the both ends to channel beam 4, with detection signal transmission to the control unit 19, the power off of control unit 19 to corresponding relay 21, stop two telescopic motor 8's rotation, when the bottom of extension ladder 12 was promoted to stair frame 1's inboard, current limit switch 22 also detected corresponding signal and transmitted it to the control unit 19, two gear motor 16 stall of control unit 19 control, realize automatic stop, so just realized the utility model discloses an automatic control function.

Specifically, the top surfaces of the two channel beams 4 are provided with inner flanges 401, and the inner flanges 401 are pressed on the side edges of the top surfaces of the movable sliding blocks 7.

In this embodiment, the avris of the top surface of slider 7 is removed in the gomphosis of intussuseption 401, makes it can be smooth and easy when receiving the power of all the other directions slide in channel beam 4, has avoided the user to trample the utility model discloses during stair, remove slider 7 and from slipping out in channel beam 4, prevent the utility model discloses product structure's damage.

The control unit 19 and the wireless communication module 20 in the present embodiment are known technologies that have been disclosed and widely used in industrial production and daily life.

The utility model discloses a theory of operation and use flow: the turning ladder 6 and the extension ladder 12 can be turned over through the rotating shaft 3, so as to lift or fall between the outer frame 1 and the ground, meanwhile, the extension ladder 12 can slide relatively along the turning ladder 6 through the movable slide block 7, the relative position of the two can be correspondingly adjusted through the rotation of the transmission screw rod 9 and the height of the attic and the ground in the rotation process of the extension motor 8, so as to realize the adjustment of the length of the ladder, when the ladder is lengthened, the ladder falls to the bottom surface, so that people can climb up, when the length of the ladder is shortened, the ladder can be lifted so as to be placed in the outer frame 1 of the ladder, so as to reduce the occupied space, a user sends a control command to the wireless communication module 20 through a handheld controller or a mobile communication terminal, the wireless communication module 20 transmits the received command to the control unit 19, and the control unit 19 performs analysis and calculation according to the self program and the current state of the electric folding ladder, then corresponding execution signals are output, after the execution signals are executed by the four relays 21, the two telescopic motors 8 and the two speed reducing motors 16 are powered on or powered off, so that the telescopic ladder 12 is driven to extend forwards or retract through the two telescopic motors 8, and the overturning ladder 6 and the telescopic ladder 12 are driven to lift or fall through the two speed reducing motors 16.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electronic folding loft stair, includes stair frame (1), upset ladder (6) and extension ladder (12), its characterized in that: the stair outer frame (1) is a rectangular frame body, shaft seats (2) are fixedly installed on two sides of the bottom edge of the stair outer frame (1), a rotating shaft (3) is installed between the two shaft seats (2) in an inserting mode, the middle of the rotating shaft (3) is connected with two groove-shaped beams (4) in an inserting mode, eight first pedals (5) which are parallel to each other are fixed between the two groove-shaped beams (4) at equal intervals to form the overturning ladder (6), movable sliding blocks (7) are movably embedded in the middle of the two groove-shaped beams (4), telescopic motors (8) are fixed at one ends, close to the rotating shaft (3), of the two groove-shaped beams (4), output shafts of the two telescopic motors (8) are connected with transmission screw rods (9), the two transmission screw rods (9) are screwed and penetrate through the corresponding movable sliding blocks (7), and movable beams (10) are fixedly connected to the top ends of the two movable sliding blocks (7), eight second pedals (11) are fixed between the two movable beams (10) in parallel to form the extension ladder (12).

2. An electrically powered folding loft ladder as claimed in claim 1, wherein: the equal fixedly connected with wire rope (13) in both sides of extension ladder (12) bottom, the both sides of stair frame (1) other end all have concatenated winding roller (14) and worm wheel (15) through the round pin axle is coaxial, wire rope (13) around connect in winding roller (14), fixed mounting has gear motor (16) in stair frame (1), the output shaft of gear motor (16) has worm (17), worm (17) meshing worm wheel (15).

3. An electrically powered folding loft ladder as claimed in claim 2, wherein: one side of stair frame (1) is fixed with control box (18), install control unit (19), wireless communication module (20) and four relay (21) in control box (18), wireless communication module (20) electric connection the input of control unit (19), the output electric connection of control unit (19) is four the control end of relay (21), four the output electric connection of relay (21) is two telescopic motor (8) and two gear motor (16).

4. An electrically powered folding loft ladder as claimed in claim 3, wherein: and the two ends of the two groove-shaped beams (4) and the inner side of the stair outer frame (1) are respectively provided with a limit switch (22), and the limit switches (22) are electrically connected with the signal input end of the control unit (19).

5. An electrically powered folding loft ladder as claimed in claim 1, wherein: the top surface of two channel beam (4) is equipped with inside flanging (401), inside flanging (401) pressfitting remove the avris of slider (7) top surface.