CN209825600U

CN209825600U - Foldable device

Info

Publication number: CN209825600U
Application number: CN201920206571.9U
Authority: CN
Inventors: 周全
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-18
Filing date: 2019-02-18
Publication date: 2019-12-24
Anticipated expiration: 2029-02-18

Abstract

A foldable device for helping people to alternately sit and stand for office work comprises four supporting plates, wherein two ends of each supporting plate are connected end to end through hinges to form a frame structure, hinge axes are parallel to each other, a connecting line of intersection points of the hinge axes and a plane which is perpendicular to the hinge axes is a quadrangle, the supporting plates are driven by manpower or a motor to rotate around the hinge axes, the quadrangle is changed from a concave quadrangle into a convex quadrangle or from the convex quadrangle into the concave quadrangle, so that the mutual distance and the included angle of each supporting plate are changed, the supporting plates are used as a working table for placing objects on the table top, and the lifting effect can be realized.

Description

Foldable device

Technical Field

The utility model relates to a foldable device, in particular to a foldable device for adjusting the height of an article on a table top.

Background

In activities such as office work, reading, maintenance and the like, people develop a plurality of lifting devices to realize alternative sitting and standing office work, but the manual driving lifting devices have more inconvenient operation actions, and other electric lifting devices realize lifting automation and convenient operation, but have large driving moment, high load requirement and complex structure.

Disclosure of Invention

For overcoming the deficiencies of the above lifting device, the utility model adopts the technical proposal that: comprises a first supporting plate (1), a second supporting plate (2), a third supporting plate (3) and a fourth supporting plate (4), wherein two ends of each supporting plate are connected end to end through hinges to form a frame structure, the axes of the hinges are parallel to each other and are in a concave quadrangle with the intersection line of the same plane which is vertically crossed with the hinge axes, the intersection points of the axes of the hinges which connect the first supporting plate (1) with the second supporting plate (2), the second supporting plate (2) with the third supporting plate (3), the third supporting plate (3) with the fourth supporting plate (4) and the first supporting plate (1) and the plane which is vertically crossed with the hinge axes are respectively recorded as A, B, C, D, and BC is greater than CD, wherein CDA is greater than 180 degrees, the foldable device is in a foldable state and can be used as a low-position working table for placing articles (such as notebook computers, tablet computers, keyboards and the like), when the & lt CDA value is larger, the second supporting plate (2) and the third supporting plate (3) are closer, when & lt CDA =360 DEG and BC-CD = AB-AD, the hinge axes at two ends of each supporting plate are in the same plane, and the foldable device is in a completely folded state; when external force (manpower or motor) is used for driving the supporting plates to rotate around the hinge shafts, the foldable device can be stretched and unfolded to enable the A, B, C, D connecting line to be a convex quadrangle, and the foldable device is in a stretching and unfolding state and can be used as a high-position workbench for placing the articles.

In practical application, the size of each supporting plate and the < CDA value at the high position and the low position are determined according to the size of the article, the height and the angle required to be placed.

Therefore, the mutual distance and the included angle of the supporting plates are changed by rotating the supporting plates around the shaft, the supporting plates are used as desktop workbenches for placing the objects, and the distance and the included angle of the objects and the desktop are changed along with the change of the mutual distance and the included angle of the supporting plates, so that the height and the angle of the objects can be adjusted.

The utility model has the advantages that:

the utility model discloses a quadrangle frame type structure, simple structure, can bear the load big, stability is good, and the drive mode is simple, only need the backup pad pivoting can, can use manpower or motor drive, can fold up and convert into and hold together, be convenient for arrange, convenient storage.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a view showing a process of changing the foldable device from the upper position to the lower position, which is represented by a quadrangle formed by connecting the axes of the hinges at both ends of the supporting plates with the intersection of the same plane which is perpendicular to the supporting plates.

Fig. 2 is a schematic view of the foldable device in the folded state according to embodiment 1.

Fig. 3 is a schematic view of the collapsible device of example 1 in an extended deployed state.

Fig. 4 is a schematic view of the foldable device in the folded state according to embodiment 2.

Figure 5 is a schematic view of the collapsible device of example 2 in an extended deployed state.

In the attached drawing, the structure comprises a first supporting plate 1, a second supporting plate 2, a third supporting plate 3, a fourth supporting plate 4, an angle driving motor 5, a high-position microswitch module 6, a low-position microswitch module 7, a supporting block 8 and a balance plate 9.

Detailed Description

In the embodiment of fig. 2 and fig. 3, the lower set value of the & lt CDA is preferably 351 °, and the A, B, C, D connection line is a concave quadrangle; and at the high position, the set value of the angle CDA is 93 degrees, and at the moment, the A, B, C, D connecting line is a convex quadrangle.

Further, the foldable device further comprises an angle driving motor (5), a single chip microcomputer, a high-position micro-switch module (6) and a low-position micro-switch module (7), preferably, the angle driving motor (5) in the embodiment adopts a worm gear and worm stepping speed reduction motor, the self-locking performance of the angle driving motor is good, the rotation angle can be controlled, the angle driving device comprises a driving module and a power supply source, the single chip microcomputer comprises a power supply module, the output end of the power supply module is electrically connected with the driving module of the angle driving motor (5), and the input end of the power supply module is electrically connected with the high-position micro-switch module (6) and the low-position micro-switch.

The high-position micro switch module (6) is arranged on the outward surface of the first supporting plate (1), and the low-position micro switch module (7) is arranged on the outward surface of the second supporting plate (2).

The angle driving motor (5) is fixed on the fourth supporting plate (4), a motor shaft of the angle driving motor is coaxial with a hinge shaft connecting the fourth supporting plate (4) and the first supporting plate (1) and is connected with the first supporting plate, and the angle driving motor (5) rotates to change the value of the angle CDA so as to enable the foldable device to be expanded, unfolded or folded.

When in use, the third supporting plate (3) is downwards used as a base to place the foldable device on a table top, when the connecting line of the & lt CDA =351 & gt and A, B, C, D is a concave quadrangle, the foldable device is in a foldable state, the article is placed on the second supporting plate (2) to be operated and used, and the article is at a low position; at the moment, if the height of the article needs to be raised, a user lifts the article, a low-level micro switch module (7) is triggered, the single chip microcomputer controls an angle driving motor (5) to rotate after receiving a signal to enable the foldable device to be stretched and unfolded to a set high-level position, namely a position when angle CDA =93 degrees, at the moment, the A, B, C, D connecting line is a convex quadrangle, and the user puts the article back to the first supporting plate (1) for operation and use to enable the article to be in the high level; at the moment, if the height of the article needs to be reduced, a user lifts the article, the high-position micro switch module (6) is triggered, the single chip microcomputer controls the angle driving motor (5) to rotate after receiving a signal to enable the foldable device to be folded and folded to a set position, namely a position of & lt CDA =351 degrees, at the moment, the A, B, C, D connecting line is a concave quadrangle, and the user puts the article back on the second supporting plate (2) to enable the article to be at a low position, so that the lifting effect is achieved.

Furthermore, the embodiment further comprises a supporting block (8) which is fixed on the third supporting plate (3) and supports against the first supporting plate (1) when the foldable device is in a folded state, so as to play a stabilizing role.

In the embodiment of fig. 4 and 5, the set value of < CDA at the lower position is preferably 360 ° and BC-CD = AB-AD, when the A, B, C, D connecting lines coincide with each other; the set value of the angle CDA at the high position is 105 degrees, and the A, B, C, D connecting line is a convex quadrangle at the moment.

Further, the foldable device further comprises an angle driving motor (5), a single chip microcomputer, a high-position micro-switch module (6) and a low-position micro-switch module (7), preferably, the angle driving motor (5) in the embodiment adopts a worm gear and worm stepping speed reduction motor, the self-locking performance of the angle driving motor is good, the rotation angle of the angle driving motor can be controlled, the angle driving motor comprises a driving module and a power supply, the single chip microcomputer comprises a power supply module, the output end of the single chip microcomputer is electrically connected with the angle driving motor (5) driving module, and the input end of the single chip microcomputer is electrically connected with the high-position micro-switch module (6) and the low-position.

The high-position microswitch module (6) is arranged on the end surface of one end of the second supporting plate, which is connected with the first supporting plate (1); the low-position microswitch module (7) is arranged outside the second support plate (2).

The angle driving motor (5) is fixed on the fourth supporting plate (4), a motor shaft of the angle driving motor is coaxial with a hinge shaft connecting the fourth supporting plate (4) and the first supporting plate (1) and is connected with the first supporting plate (1), and the angle driving motor (5) rotates to change the angle CDA value so as to enable the foldable device to be expanded, unfolded or folded.

When the foldable device is used, the third supporting plate (3) is upwards taken as a panel, the foldable device is placed on a table top, when the connecting lines of & lt CDA =360 DEG and A, B, C, D are overlapped, the foldable device is in a folded state, the article is placed on the third supporting plate (3) for operation, and the article is at a low position; at the moment, if the height of the article needs to be raised, a user lifts the whole foldable device, the article is also lifted, the low-position microswitch module (7) is triggered, the singlechip controls the angle driving motor (5) to rotate after receiving a signal so that the foldable device is stretched and opened to a set position, namely a position of ═ CDA =105 degrees, and then the user puts the foldable device and the article placed on the foldable device back to the tabletop so that the article is in a high position; at the moment, if the height of the article needs to be reduced, a user lifts the whole foldable device, the article is also lifted, the high-position microswitch module (6) is triggered, the singlechip controls the angle driving motor (5) to rotate after receiving a signal so that the foldable device is folded and folded to a set position, namely a position of & lt CDA =360 degrees, and then the user puts the foldable device and the article placed on the foldable device back to the tabletop so that the article is in a low position, thereby realizing the lifting effect.

Furthermore, this embodiment still includes balance support plate (9), and balance support plate (9) fixed connection plays the effect of supporting balanced angle regulation in the one end that is connected with first backup pad (1) of fourth backup pad (4), and its size and with the contained angle of fourth backup pad (4) is confirmed according to the focus skew condition when collapsible device is in the extension state of opening, and does not hinder the rotation of each backup pad.

Further, when the foldable device is applied to lifting of a desktop computer keyboard, the foldable device is in wired or wireless communication connection with a computer display with a lifting function, so that the computer display and the foldable device can be lifted synchronously.

The utility model discloses inwards, mean the orientation the inside direction of the frame type structure that the backup pad formed, outwards, mean the opposite direction of orientation.

Claims

1. A collapsible device, characterized by: the foldable device comprises a first supporting plate (1), a second supporting plate (2), a third supporting plate (3) and a fourth supporting plate (4), wherein two ends of each supporting plate are connected end to end through hinges to form a frame-shaped structure, the intersection lines of the hinge axes which are parallel to each other and are perpendicular to the same plane are a concave quadrangle, the intersection points of the hinge axes which connect the first supporting plate (1) with the second supporting plate (2), the second supporting plate (2) with the third supporting plate (3), the third supporting plate (3) with the fourth supporting plate (4) and the fourth supporting plate (4) with the first supporting plate (1) and the perpendicular plane are respectively A, B, C, D and BC > CD, at the moment, the & lt CDA & gt 180 DEG, the foldable device is in a folding state and can be used as a low-position working table for placing articles, at the moment, the & lt CDA value is larger, the closer the second support plate (2) and the third support plate (3) are, when ═ CDA =360 DEG and BC-CD = AB-AD, the hinge axes at the two ends of each support plate are in the same plane, and the foldable device is in a completely folded state; when external force is used for driving the supporting plates to rotate around the hinge shafts, the foldable device can be stretched and unfolded to enable the A, B, C, D connecting line to be a convex quadrangle, and the foldable device is in a stretching and unfolding state and can be used as a high-position workbench for placing the articles;

during the use, through the pivoting of each backup pad, make its mutual distance and contained angle change, use it as placing the desktop workstation of article, article and desktop distance and contained angle are followed the change of backup pad mutual distance and contained angle changes to can realize right the regulation of the height and the angle of article.

2. The foldable device according to claim 1, further comprising an angle driving motor (5), a single chip microcomputer, a high-position micro switch module (6) and a low-position micro switch module (7), wherein the angle driving motor (5) is a stepping motor or a steering engine, a direct current speed reduction motor with a limit switch, can control a rotation angle, and comprises a driving module and a power supply source, the single chip microcomputer comprises a power supply module, an output end of the power supply module is electrically connected with the driving module of the angle driving motor (5), and an input end of the power supply module is electrically connected with the high-position micro switch module (6) and the low-position micro switch module (7);

the high-position microswitch module (6) is arranged on the outward surface of the first supporting plate (1), and the low-position microswitch module (7) is arranged on the outward surface of the second supporting plate (2);

the angle driving motor (5) is fixed on the fourth supporting plate (4), a motor shaft of the angle driving motor is coaxial with a hinge shaft connecting the fourth supporting plate (4) and the first supporting plate (1) and is connected with the first supporting plate, and the angle driving motor (5) can change the angle CDA value by rotating so as to extend, open or fold the foldable device;

when the foldable device is used, the third supporting plate (3) is used as a base to be placed on a table top downwards, when the angle CDA is a set low-position numerical value and the A, B, C, D connecting line is a concave quadrangle, the foldable device is in a folded state, the article is placed on the second supporting plate (2) to be operated and used, and the article is in a low position; when the height of the article needs to be raised, a user lifts the article, the low-position microswitch module (7) is triggered, the single chip microcomputer controls the angle driving motor (5) to rotate after receiving a signal to enable the foldable device to be stretched and unfolded to a set high-position, the A, B, C, D connecting line is a convex quadrangle at the moment, and the user puts the article back to the first supporting plate (1) for operation and use to enable the article to be in the high position; at the moment, if the height of the article needs to be reduced, a user lifts the article, the high-position micro switch module (6) is triggered, the single chip microcomputer receives a signal and controls the angle driving motor (5) to rotate so that the foldable device is folded and folded to a set low position, at the moment, the A, B, C, D connecting line is a concave quadrangle, and the user puts the article back to the second supporting plate (2) so that the article is in the low position, so that the lifting effect is achieved.

3. A collapsible device according to claim 2, wherein: the foldable device is characterized by further comprising a supporting block (8) which is fixed on the third supporting plate (3) and supports against the first supporting plate (1) when the foldable device is in a folded state, so that a stabilizing effect is achieved.

4. A collapsible device according to claim 1, wherein: the foldable device further comprises an angle driving motor (5), a single chip microcomputer, a high-position micro switch module (6) and a low-position micro switch module (7), wherein the angle driving motor (5) is a stepping motor or a steering engine or a direct current speed reducing motor with a limit switch, can control the rotation angle, and comprises a driving module and a power supply source, the single chip microcomputer comprises a power supply module, the output end of the power supply module is electrically connected with the angle driving motor (5) driving module, and the input end of the power supply module is electrically connected with the high-position micro switch module (6) and the low-position micro switch module (7);

the high-position microswitch module (6) is arranged on the end surface of one end, connected with the first supporting plate (1), of the second supporting plate (2), and the low-position microswitch module (7) is arranged on the outward surface of the second supporting plate (2);

the angle driving motor is fixed on the fourth supporting plate (4), a motor shaft of the angle driving motor is coaxial with a hinge shaft connecting the fourth supporting plate (4) and the first supporting plate (1) and is connected with the first supporting plate (1), and the angle driving motor (5) rotates to change the value of the angle CDA so as to extend, open or fold the foldable device;

when the foldable device is used, the third support plate (3) is upwards used as a panel to place the foldable device on a table top, when the & lt CDA is a set low-position numerical value and the A, B, C, D connecting line is a concave quadrangle, the foldable device is in a foldable state, the article is placed on the third support plate (3) to be operated and used, and the article is at a low position; if the height of the article needs to be raised, a user lifts the whole foldable device, the article is also lifted, the low-position microswitch module (7) is triggered at the moment, the single chip microcomputer controls the angle driving motor (5) to rotate after receiving a signal so that the foldable device is stretched and unfolded to a set high-position, at the moment, the A, B, C, D connecting line is a convex quadrangle, at the moment, the foldable device is in a stretched and unfolded state, and then the user puts the foldable device and the article placed on the foldable device back to a table top so that the article is in a high position; at the moment, if the height of an article needs to be lowered, a user lifts the whole foldable device, the article is lifted together, the high-position microswitch module (6) is triggered, the single chip microcomputer receives a signal and controls the angle driving motor (5) to rotate so that the foldable device is folded and folded to a set low-position, at the moment, the A, B, C, D connecting line is a concave quadrangle, at the moment, the foldable device is in a folded and folded state, and then the user puts the foldable device and the article placed on the foldable device back to a table top so that the article is in a low position, so that the lifting effect is achieved.

5. A collapsible device according to claim 4, wherein: still include balance support plate (9), balance support plate (9) fixed connection be in the one end of being connected with first backup pad (1) of fourth backup pad (4), play the effect of supporting balanced angle regulation, its size and with the contained angle of fourth backup pad (4) is according to but the focus skew situation when folding device is in the extension state of opening is confirmed, and does not hinder the rotation of each backup pad.