CN214057808U

CN214057808U - Built-in folder

Info

Publication number: CN214057808U
Application number: CN202023162286.3U
Authority: CN
Inventors: 钱芳富; 温久威; 王志凯
Original assignee: Shenzhen Fairway Technology Development Co ltd
Current assignee: Shenzhen Fairway Technology Development Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-27
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a built-in folder, which comprises a first folding block and a second folding block with hollow inside, wherein the tail end of the first connecting sheet is hinged in the first folding block and is provided with a first hinge shaft, the front end of the first connecting sheet is hinged in the front end of a first hinge, and the tail end of the first hinge is hinged in the second folding block and is provided with a fourth hinge shaft; the tail end of the second connecting piece is hinged to the second folding block and internally provided with a third hinge shaft, the front end of the second connecting piece is hinged to the front end of a second hinge, and the tail end of the second hinge is hinged to the first folding block and internally provided with a second hinge shaft; the first hinge and the second hinge are hinged at the middle parts of the first hinge and the second hinge; the first hinge shaft and the second hinge shaft respectively penetrate through the first accommodating groove, and the third hinge shaft and the fourth hinge shaft respectively penetrate through the second accommodating groove. The built-in folder is convenient to fold, high in strength and neat in appearance.

Description

Built-in folder

Technical Field

The utility model relates to a scray, in particular to can be applied to interior concealed scray of folding bicycle.

Background

Energy conservation and emission reduction are advocated all over the world, and China is a creditable bicycle great country. Folding bicycles and folding electric vehicles are very important in traveling vehicles due to the fact that the folding bicycles and the folding electric vehicles are convenient to carry and small in occupied space, and have a trend of becoming more and more popular.

Most of the existing folding bicycles and folding electric vehicles are provided with a folding joint in the middle of a frame. For example, chinese patent CN201220642260.5 discloses a "folding joint for foldable bicycle", which comprises an outer connecting plate and an inner connecting plate of a cavity connected by a hinge shaft, wherein the hinge shaft is the only rotating shaft, cannot bear large load, and is only suitable for light foldable bicycles; when a rider rides on a heavy or long-term bumpy road, the risk of deformation or fracture exists; in addition, the single hinge shaft enables the folding angle of the outer connecting plate and the inner connecting plate to be limited when the bicycle is opened, so that the bicycle is labor-consuming to fold, and the appearance is not neat enough after being folded, thereby being not beneficial to storage or packaging.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a folding convenient, bearing strength is high, interior concealed scray of appearance neatly.

The utility model discloses a realize like this: the built-in folder comprises a first folding block and a second folding block which are hollow inside, the tail end of a first connecting sheet is hinged in the first folding block, a first hinge shaft is arranged in the first folding block, the front end of the first connecting sheet is hinged in the front end of a first hinge, and the tail end of the first hinge is hinged in a fourth hinge shaft arranged in the second folding block; the tail end of the second connecting piece is hinged to the second folding block and internally provided with a third hinge shaft, the front end of the second connecting piece is hinged to the front end of a second hinge, and the tail end of the second hinge is hinged to the first folding block and internally provided with a second hinge shaft; the first hinge and the second hinge are hinged at the middle parts of the first hinge and the second hinge; the inner side of the first folding block is provided with a first accommodating groove, the inner side of the second folding block is provided with a second accommodating groove, the first hinge shaft and the second hinge shaft are respectively arranged in the first accommodating groove in a penetrating manner, and the third hinge shaft and the fourth hinge shaft are respectively arranged in the second accommodating groove in a penetrating manner; in the buckling state of the first folding block and the second folding block, the first connecting sheet, the second connecting sheet, the first hinge and the second hinge are contained in the space formed by the first containing groove and the second containing groove.

The axial leads of the first hinge shaft, the second hinge shaft, the third hinge shaft and the fourth hinge shaft are respectively parallel.

The second hinge front end has two crooked arms, forms U type breach between two crooked arms, and first hinge front end has a linking arm, the linking arm assembles in U type breach.

The middle part of the first connecting sheet is provided with a first arc-shaped groove, and the middle part of the second connecting sheet is provided with a second arc-shaped groove; in the completely unfolded state of the first folding block and the second folding block, the tail end part of the second hinge is accommodated in the first arc-shaped groove, and the tail end part of the first hinge is accommodated in the second arc-shaped groove.

The outer edges of the first folding block and the second folding block are respectively provided with a first notch and a second notch, and the first notch and the second notch correspond to each other and are communicated in the buckling state of the first folding block and the second folding block; the first notch is fixedly provided with a fifth hinge shaft, and the second notch is fixedly provided with a sixth hinge shaft; and a locking device is arranged in a space formed by the first notch and the second notch.

The locking device is provided with a handle and a connecting rod, the front end of the handle is hinged to the sixth hinge shaft, the front end of the connecting rod is connected to the fifth hinge shaft, and the tail end of the connecting rod is connected to the inner side of the handle.

The front end of the connecting rod is in threaded connection with the fifth hinge shaft, the screw penetrates through the cross rod arranged on the inner side of the handle, and the front end of the screw is connected to the tail end of the connecting rod.

In the buckling state of the first folding block and the second folding block, the outer surface of the handle is flush with the outer surface of the first folding block arranged on the handle side.

The shaft axes of the fifth hinge shaft and the sixth hinge shaft are respectively parallel to the shaft axis of the first hinge shaft.

The inner side edge of the first folding block is provided with an inner opening, the inner side edge of the second folding block is provided with a protrusion, and the inner opening is meshed and matched with the protrusion.

The concealed folder of the utility model uses the first connecting sheet, the second connecting sheet, the first hinge and the second hinge as the rotating pivot, is convenient to fold, can bear larger load, and is firm and reliable; in the folding and buckling state, the connecting sheet, the link and the handle are all positioned at the inner side of the folder, and no obvious protrusion exists, so that the risk of scraping a user is avoided, and the appearance is attractive; when unfolding the folding joint device, the perfect unfolding of 180 degrees can be realized due to the mobility of the first hinge and the second hinge, so that the bicycle is more neat after being folded and is easy to store.

Drawings

FIG. 1 is a perspective view of the concealed folder according to the present invention;

FIG. 2 is a perspective view of the concealed folder according to the present invention at another angle;

FIG. 3 is a perspective view of the concealed folder according to the present invention at another angle;

FIG. 4 is a side view of the concealed folder according to the present invention;

FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is a perspective view of the concealed folder of the present invention in a folded state;

FIG. 7 is another perspective view of the folding state of the concealed folder of the present invention;

FIG. 8 is a side view of the folding state of the concealed folder according to the present invention;

FIG. 9 is a schematic cross-sectional view taken along line B-B of FIG. 8;

FIG. 10 is a side view of the inner folder of the present invention at another angle;

FIG. 11 is an exploded view of the inner folder of the present invention;

FIG. 12 is a top view of the inner components of the inner folder of the present invention;

FIG. 13 is a side view of the inner components of the inner folder of the present invention;

FIG. 14 is a perspective view of the internal components of the concealed folder of the present invention;

fig. 15 is a schematic view of the locking device of the concealed folder of the present invention.

Detailed Description

The concealed folder of the present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 14, the inner folder includes a first folding block 1 and a second folding block 2 having a hollow interior, a first hinge shaft 11 is provided at a rear end of a first connecting piece 3 hinged to the first folding block, a front end of the first connecting piece is hinged to a front end of a first hinge 5, and a fourth hinge shaft 22 is provided at a rear end of the first hinge hinged to the second folding block; the tail end of the second connecting piece 4 is hinged to the second folding block and internally provided with a third hinge shaft 21, the front end of the second connecting piece is hinged to the front end of the second hinge 6, and the tail end of the second hinge is hinged to the first folding block and internally provided with a second hinge shaft 12; the first hinge and the second hinge are hinged at the middle parts of the first hinge and the second hinge; the inner side of the first folding block 1 is provided with a first containing groove 13, the inner side of the second folding block 2 is provided with a second containing groove 23, the first hinge shaft and the second hinge shaft respectively penetrate through the first containing groove, and the third hinge shaft and the fourth hinge shaft respectively penetrate through the second containing groove; in the buckling state of the first folding block and the second folding block, the first connecting sheet, the second connecting sheet, the first hinge and the second hinge are contained in the space formed by the first containing groove and the second containing groove.

Further, the first receiving groove 13 and the second receiving groove 23 are oppositely disposed with an inward opening, and the inward opening is a direction toward the buckling surface of the first folding block and the second folding block. In addition, the openings of the first accommodating groove and the second accommodating groove are positioned at the same height and are matched.

Further, as shown in fig. 9 and 10, the first hinge 5 and the second hinge 6 are hingedly connected at the middle thereof by a central hinge shaft 56, which is located at the outer side edges of the first folding block and the second folding block in the folded state.

The axial leads of the first hinge shaft, the second hinge shaft, the third hinge shaft and the fourth hinge shaft are respectively parallel. Further, as shown in fig. 5 and 9, the second hinge shaft 12 is closer to the fastening surfaces of the first and

second folding blocks

1 and 2 with respect to the first hinge shaft 11, and the fourth hinge shaft 22 is closer to the fastening surfaces of the first and

second folding blocks

1 and 2 with respect to the third hinge shaft 21. This ensures that the normal movement of the elements does not interfere during folding. In addition, the first hinge shaft, the second hinge shaft, the third hinge shaft and the fourth hinge shaft can be respectively kept fixed with the first folding block and the second folding block through transverse pins.

As shown in fig. 14, the second hinge front end has two curved arms 61 forming a U-shaped notch 62 therebetween, and the first hinge front end has a connecting arm 51 fitted in the U-shaped notch.

As shown in fig. 9 and 14, the first connecting piece 3 is provided with a first arc-shaped groove 31 in the middle, and the second connecting piece 4 is provided with a second arc-shaped groove 41 in the middle; in the completely unfolded state of the first folding block and the second folding block, the tail end part of the second hinge is accommodated in the first arc-shaped groove, and the tail end part of the first hinge is accommodated in the second arc-shaped groove. Thereby realizing the compactness and the stability of the whole structure.

As shown in fig. 2 and 11, the outer edges of the first folding block 1 and the second folding block 2 are respectively provided with a first notch 14 and a second notch 24, and in the state that the first folding block and the second folding block are buckled, the first notch and the second notch correspond to each other and are communicated; the first notch is fixedly provided with a fifth hinge shaft 15, and the second notch is fixedly provided with a sixth hinge shaft 25; the space formed by the first notch and the second notch is internally provided with a locking device 7. The shaft axes of the fifth hinge shaft and the sixth hinge shaft are respectively parallel to the shaft axis of the first hinge shaft.

As shown in fig. 15, the locking device 7 has a handle 71 having a front end hinged to the sixth hinge shaft 25 and a connection rod having a front end connected to the fifth hinge shaft 15 and a rear end connected to the inside of the handle. The front end of the connecting rod is in threaded connection with the fifth hinge shaft, a screw 73 penetrates through a cross rod 72 arranged on the inner side of the handle, and the front end of the screw is connected to the tail end of the connecting rod. Therefore, through the rotation regulation connecting rod, can realize the function of adjustment handle elasticity to satisfy different demand scenes and different users' dynamics hobby. Further, the connection line of the axis of the cross bar 72 and the axis of the sixth hinge shaft 25 is located at the lower side of the axis of the fifth hinge shaft 15, so that when the handle is rotated to the position shown in fig. 15, a stable connection is formed in the mechanical structure, and the handle cannot be turned outwards and loosened.

As shown in fig. 1 and 2, in the state where the first folding block is engaged with the second folding block, the outer surface of the handle of the locking device 7 is flush with the outer surface of the first folding block on which the handle side is disposed. Therefore, after the first folding block and the second folding block are buckled, the side surface is not provided with an obvious projection, scraping damage can not be caused, and the appearance is not influenced.

As shown in fig. 6 and 7, the inside edge of the first folded piece has an inner mouth 16 and the inside edge of the second folded piece has a protrusion 26, the inner mouth and the protrusion snap-fit together. Further, the inner openings and the protrusions may be a plurality of pairs of mating openings, for example, the inner openings and the protrusions may be respectively disposed on the upper side, the lower side, or the middle portion of the fastening surfaces of the first folding block and the second folding block. In addition, an inner opening and a protrusion can be arranged on the inner side edge of the first folding block, and a matched protrusion and an inner opening are arranged at the corresponding position of the inner side edge of the second folding block. Therefore, when the first folding block is buckled with the second folding block, transverse dislocation cannot occur, and the stability is further improved.

And chamfers are arranged at the edges of the combined surfaces of the first folding block and the second folding block. The first folding block and the second folding block need to be folded when being folded, the structure of the chamfer angle enables the folding to be more labor-saving, and meanwhile, interference and collision are avoided.

The first folding block and the second folding block of the built-in folder are respectively and fixedly connected to the front part and the rear part of a beam of a folding bicycle or a folding electric vehicle.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A built-in folder comprising a first folding block (1) and a second folding block (2) having an inner hollow, characterized in that: the tail end of the first connecting piece (3) is hinged to the first folding block and internally provided with a first hinge shaft (11), the front end of the first connecting piece is hinged to the front end of the first hinge (5), and the tail end of the first hinge is hinged to the second folding block and internally provided with a fourth hinge shaft (22); the tail end of the second connecting piece (4) is hinged to the second folding block and internally provided with a third hinge shaft (21), the front end of the second connecting piece is hinged to the front end of the second hinge (6), and the tail end of the second hinge is hinged to the first folding block and internally provided with a second hinge shaft (12); the first hinge and the second hinge are hinged at the middle parts of the first hinge and the second hinge;

the inner side of the first folding block is provided with a first containing groove (13), the inner side of the second folding block is provided with a second containing groove (23), the first hinge shaft and the second hinge shaft respectively penetrate through the first containing groove, and the third hinge shaft and the fourth hinge shaft respectively penetrate through the second containing groove; in the buckling state of the first folding block and the second folding block, the first connecting sheet, the second connecting sheet, the first hinge and the second hinge are contained in the space formed by the first containing groove and the second containing groove.

2. The interior folder of claim 1, wherein: the axial leads of the first hinge shaft, the second hinge shaft, the third hinge shaft and the fourth hinge shaft are respectively parallel.

3. The interior folder of claim 2, wherein: the second hinge front end has two curved arms (61) forming a U-shaped gap (62) therebetween, and the first hinge front end has a connecting arm (51) fitted in the U-shaped gap.

4. The interior folder of any one of claims 1-3, wherein: the middle part of the first connecting piece is provided with a first arc-shaped groove (31), and the middle part of the second connecting piece is provided with a second arc-shaped groove (41); in the completely unfolded state of the first folding block and the second folding block, the tail end part of the second hinge is accommodated in the first arc-shaped groove, and the tail end part of the first hinge is accommodated in the second arc-shaped groove.

5. The interior folder of any one of claims 1-3, wherein: the outer edges of the first folding block and the second folding block are respectively provided with a first notch (14) and a second notch (24), and the first notch and the second notch are corresponding in position and communicated in a buckling state of the first folding block and the second folding block;

the first notch is fixedly provided with a fifth hinge shaft (15), and the second notch is fixedly provided with a sixth hinge shaft (25);

and a locking device (7) is arranged in a space formed by the first notch and the second notch.

6. The interior folder of claim 5, wherein: the locking device is provided with a handle and a connecting rod, the front end of the handle is hinged to the sixth hinge shaft, the front end of the connecting rod is connected to the fifth hinge shaft, and the tail end of the connecting rod is connected to the inner side of the handle.

7. The interior folder of claim 6, wherein: the front end of the connecting rod is in threaded connection with the fifth hinge shaft, the screw penetrates through the cross rod arranged on the inner side of the handle, and the front end of the screw is connected to the tail end of the connecting rod.

8. The interior folder of claim 6, wherein: in the buckling state of the first folding block and the second folding block, the outer surface of the handle is flush with the outer surface of the first folding block arranged on the handle side.

9. The interior folder of claim 5, wherein: the shaft axes of the fifth hinge shaft and the sixth hinge shaft are respectively parallel to the shaft axis of the first hinge shaft.

10. The interior folder of any one of claims 1-3, wherein: the inner side edge of the first folding block is provided with an inner opening (16), the inner side edge of the second folding block is provided with a projection (26), and the inner opening is matched with the projection in a snapping way.