CN212028311U

CN212028311U - Folding mechanism

Info

Publication number: CN212028311U
Application number: CN202020049143.2U
Authority: CN
Inventors: 任湛初
Original assignee: Guangzhou Aoweila Case Co ltd
Current assignee: Guangzhou Aoweila Case Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-11-27
Anticipated expiration: 2030-01-09

Abstract

The utility model discloses a folding mechanism, including first folded sheet, second folded sheet and third folded sheet, the one end of first folded sheet with the one end of second folded sheet is rotated and is connected, the other end of second folded sheet with the one end of third folded sheet is rotated and is connected, be equipped with J shape hole on the third folded sheet, the other end of first folded sheet be equipped with J shape hole sliding fit's fixed pin. Therefore, the utility model discloses a connection structure between first folded sheet, second folded sheet and the third folded sheet can realize the switching of expansion state and storage state, need not to establish spacing piece, buckle, bolt, threaded connection spare etc. in addition, and folding mechanism after accomodating can coincide to same sharp on, greatly practice thrift the space, have simple structure, reliable and stable, expand and accomodate convenient advantage.

Description

Folding mechanism

Technical Field

The utility model belongs to collapsible articles for use field of accomodating especially relates to a folding mechanism.

Background

Along with the population is more and more intensive and the life is urbanization day by day, people's living space is littleer and more for article that can fold and accomodate are considered when people purchase commodity, for example: folding table, folding stool, folding bed, folding leg on the wall etc. and the folded structure of these article mostly need adopt locating part, buckle, bolt, threaded connection spare etc. to fix the state of expansion of article, after dismantling folding many times, fixed connection department reduces folded structure's stability because wearing and tearing, deformation.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the folding mechanism is simple in structure, stable, reliable, and convenient to unfold and store.

In order to solve the technical problem, the utility model provides a folding mechanism, it includes first folded sheet, second folded sheet and third folded sheet, the one end of first folded sheet with the one end of second folded sheet is rotated and is connected, the other end of second folded sheet with the one end of third folded sheet is rotated and is connected, be equipped with J shape hole on the third folded sheet, the other end of first folded sheet be equipped with J shape hole sliding fit's fixed pin.

As a preferred scheme of the present invention, the J-shaped hole is provided with a linear hole section and a hook-shaped hole section, and when the relative angle between the first folding plate and the second folding plate is 0 degree, the fixing pin moves to the end of the linear hole section to form a first limiting structure; when the relative angle of first folded sheet and second folded sheet is 90 degrees, the fixed pin removes to the end of colluding the shape hole section constitutes second limit structure.

Implement the utility model provides a pair of folding mechanism, compare with prior art, its beneficial effect lies in:

the utility model discloses a connection structure between first folded sheet, second folded sheet and the third folded sheet can realize the switching of expansion state and storage state, need not to establish spacing piece, buckle, bolt, threaded connection spare etc. in addition, and folding mechanism after accomodating can coincide to same sharp on, greatly practice thrift the space, have simple structure, reliable and stable, expand and accomodate convenient advantage.

Drawings

Fig. 1 is a schematic structural view of a folding mechanism according to the present invention in an unfolded state;

fig. 2 is a schematic structural view of the folding mechanism provided by the present invention in a storage state;

in the figure: 1. the folding plate comprises a first folding plate, a second folding plate, a third folding plate, 4J-shaped holes, 41 linear hole sections, 42 hook-shaped hole sections and 5 fixing pins.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate the orientation or positional relationship, are used in the present invention as being based on the orientation or positional relationship shown in the drawings, and are used only for convenience of description and simplification of the description, and 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 "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are used in a generic sense, e.g., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the preferred embodiment of the present invention is a folding mechanism, which includes a first folding plate 1, a second folding plate 2 and a third folding plate 3, wherein one end of the first folding plate 1 is connected to one end of the second folding plate 2, the other end of the second folding plate 2 is connected to one end of the third folding plate 3, a J-shaped hole 4 is formed on the third folding plate 3, and the other end of the first folding plate 1 is provided with a fixing pin 5 slidably engaged with the J-shaped hole 4. The J-shaped hole 4 is provided with a linear hole section 41 and a hook-shaped hole section 42, and when the relative angle between the first folding plate 1 and the second folding plate 2 is 0 degree, the fixing pin 5 moves to the tail end of the linear hole section 41 to form a first limiting structure; when the relative angle between the first folding plate 1 and the second folding plate 2 is 90 degrees, the fixing pin 5 moves to the end of the hook-shaped hole section 42 to form a second limiting structure.

When the folding frame is used, the first folding plate 1 and the second folding plate 2 are respectively fixed on two relatively rotating components, taking a wall folding frame as an example, the first folding plate 1 is vertically fixed on a wall surface, and the second folding plate 2 is fixed on the bottom surface of the bearing plate in parallel; when the folding frame on the wall is unfolded, because the first folding plate 1 is fixed, when the bearing plate (i.e. the second folding plate 2) is turned upwards, the third folding plate 3 is driven to be lifted upwards, the fixing pin 5 on the first folding plate 1 moves downwards relative to the linear hole section 41, when the upward-turned angle of the bearing plate (i.e. the second folding plate 2) is more than 90 degrees and is blocked by the fixing pin 5 and can not be turned upwards, the fixing pin 5 is just at the lowest point position of the hook-shaped hole section 42, when the bearing plate (i.e. the second folding plate 2) is turned backwards downwards, the fixing pin 5 is blocked by the inner bent hole wall of the hook-shaped hole section 42 and slides into one side of the tail end of the hook-shaped hole section 42, when the bearing plate (i.e. the second folding plate 2) is turned backwards to 90 degrees downwards, the fixing pin 5 on the first folding plate 1 just moves to the tail end of the hook-shaped hole section 42 to form a second limiting structure, at this, the acting force loaded on the upper surface of the bearing plate is transmitted to the fixing pin 5 on the first folding plate 1 through the third folding plate 3, so that a triangular support structure is formed, and the triangular support structure is firm and stable; when the folding rack on the wall is stored, the bearing plate (namely the second folding plate 2) is turned upwards, until the bearing plate is blocked by the fixing pin 5 and can not be turned upwards, the fixing pin 5 is just at the lowest point position of the hook-shaped hole section 42, when the bearing plate (namely the second folding plate 2) returns downwards, the fixing pin 5 is blocked by the inner bent hole wall of the hook-shaped hole section 42 and slides into one side of the hook-shaped hole section 42 connected with the linear hole section 41, the bearing plate (namely the second folding plate 2) continues to return downwards, the third folding plate 3 is driven to fold on one side of the first folding plate 1 in the same direction, when the bearing plate (namely the second folding plate 2) returns downwards to the position where the relative angle with the first folding plate 1 is 0 degree, the fixing pin 5 on the first folding plate 1 moves to the tail end of the linear hole section 41 to form a first limiting structure, the folding is completed, and the storage is convenient.

It can be seen that, the utility model discloses a connection structure between first folded sheet 1, second folded sheet 2 and the third folded sheet 3 can realize the switching of expansion state and the state of accomodating, need not to establish spacing piece, buckle, bolt, threaded connection spare etc. in addition, and folding mechanism after accomodating can coincide to same straight line on, greatly practice thrift the space, have simple structure, reliable and stable, expand and accomodate convenient advantage.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a folding mechanism, its characterized in that, includes first folded sheet, second folded sheet and third folded sheet, the one end of first folded sheet with the one end of second folded sheet is rotated and is connected, the other end of second folded sheet with the one end of third folded sheet is rotated and is connected, be equipped with J shape hole on the third folded sheet, the other end of first folded sheet be equipped with J shape hole sliding fit's fixed pin.

2. The folding mechanism of claim 1, wherein said J-shaped hole has a straight hole section and a hook-shaped hole section, and when the relative angle between said first folding plate and said second folding plate is 0 degrees, said fixing pin moves to the end of said straight hole section to form a first limit structure; when the relative angle of first folded sheet and second folded sheet is 90 degrees, the fixed pin removes to the end of colluding the shape hole section constitutes second limit structure.