CN221395132U - Hinge device and bidirectional folding container - Google Patents

Abstract

The utility model relates to the field of folding containers, in particular to a hinge device and a bidirectional folding container. When the brake shaft is in the locking position, the brake shaft part is embedded into the first notch, and the inner hinge is locked in the vertical position; when the brake shaft is in the release position, the inner hinge is free to pass through the second notch and rotate between a horizontal position and a reclined position. The utility model provides a bi-directional folding container through the bi-directional folding hinge device, does not need to load and unload cargoes from the side surface or the upper side of the container, does not need auxiliary equipment such as a crane or a forklift, reduces the cost and improves the efficiency.

Description

Hinge device and bidirectional folding container

Technical Field

The utility model relates to the field of folding containers, in particular to a hinge device and a bidirectional folding container.

Background

The folding container is a kind of rack type container, which includes a cargo chassis and foldable end walls at both ends of the chassis. The end wall of the existing folding container can only be folded or erected in the container, and when the folding container is used, the end wall is erected, loaded and transported; when the empty container returns, the end wall is folded into the container, the height of the whole container is reduced, and the plurality of folded containers are folded to form a header for transporting the container, so that return transportation cost is reduced.

The existing hinge devices of the folding container are all characterized in that the eccentric hinges are utilized to enable the position of the corner posts to be folded to be lower than the ground, but due to the design of the eccentric hinges and the stop blocks, the folding direction of the corner posts can only be one direction facing the inside of the container and cannot be folded outside the container, so that when goods are loaded and unloaded, the container can only be operated from the side or the upper side, particularly when a vehicle is loaded, the container must be loaded from the side or the upper side by the aid of a crane or a forklift, and the cost is increased and the efficiency is reduced by using auxiliary equipment. The folding and rotating mechanism of the bidirectional folding hinge of the prior patent is complex in design, such as two bidirectional folding containers disclosed in application number 200720306856.7 and application number 200920001302.5.

Disclosure of utility model

The utility model aims to provide a hinge device and a bi-directional folding container, which are used for solving the problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the hinge device comprises an inner hinge and an outer hinge, wherein the inner hinge is pivotally connected to the outer hinge through a central rotating shaft, a first notch is formed in the end part of the inner hinge, and the whole first notch is parallel to the central rotating shaft; the hinge device further comprises a rotatable brake shaft, wherein the brake shaft penetrates through the outer hinge in parallel to the central rotating shaft and is axially provided with a second notch; the brake shaft is close to the end of the inner hinge and rotates between a locking position and a release position;

The brake shaft is partially embedded into the first notch when the brake shaft is in the locking position, and the inner hinge is locked in the vertical position; when the brake shaft is in the release position, the inner hinge can freely pass through the second notch and rotate between a horizontal position and a leaning position.

Thus, when the inner hinge rotates around the central rotating shaft, whether the inner hinge is locked or not can be selected through the brake shaft arranged at the end part. When in locking, the inner hinge realizes the locking at the vertical position through the double limitation of the central rotating shaft and the brake shaft; when the locking action of the brake shaft is not needed, the brake shaft is rotated to open, and a space for the rotation of the inner hinge is provided, so that the end part of the inner hinge can be limited only by the central rotating shaft, and can rotate in two directions.

Preferably, the inner hinge comprises a straight surface and a curved surface which are connected, the curved surface is provided with the first notch, and the first notch is close to the straight surface; the brake shaft is provided with a concave curved wall, and the concave space is the second notch; the curved surface is capable of sliding engagement with the curved wall when the inner hinge is free to rotate. Therefore, when the inner hinge rotates to the side where the curved surface is located, the inner hinge can horizontally lie down due to the cooperation of the curved surface and the curved wall and is used for folding the middle end wall of the container into the container; when the inner hinge rotates to the side where the straight face is located, the straight face is not constrained by the limiting shaft, so that the inner hinge can be inclined and laid down finally, and the inner hinge is used for folding the middle end wall of the container to fold outwards and incline to form a ramp.

Preferably, one end of the brake shaft passes through the outer hinge, and a through rotation stopping hole is radially arranged at the end; and the outer hinge is provided with a rotation stopping pin matched with the rotation stopping hole, and the rotation stopping pin limits the rotation of the brake shaft. Therefore, the brake shaft can rotate 180 degrees by limiting the rotation stop pin, so that the position of the curved wall is changed, and locking and releasing of the inner hinge are realized.

Preferably, a torsion spring is sleeved outside the brake shaft, one end of the torsion spring is fixed on the brake shaft, and a pressing block is fixed at the other end of the torsion spring. Therefore, the torsion spring and the pressing block are matched to enable the brake shaft to have autorotation tendency, so that the brake shaft can automatically rotate when meeting the first notch without limitation of the rotation stop pin.

Preferably, the outer hinge comprises hinge vertical plates arranged at two sides of the inner hinge.

Preferably, the outer hinge further comprises a hinge reinforcing plate arranged beside the hinge vertical plate, and the hinge reinforcing plate is parallel to the hinge vertical plate. The overall strength of the outer hinge is thereby reinforced on the basis of the hinge uprights and is required to be made to conform to the standard specifications of the container.

Preferably, the top of the outer hinge is provided with an upper end plate. Thus, after the inner hinge is folded into the case, a plurality of containers can be stacked and transported based on the upper end plate.

The utility model simultaneously provides the following technical scheme: the bidirectional folding container comprises a bottom frame and two end walls, wherein two ends of each end wall are arranged at two ends of the bottom frame along the length direction through hinge devices.

Therefore, through the hinge device, the end wall can be folded inwards to meet the basic requirement of a folded container, and can be folded outwards to lean against the ground obliquely to form a passage for loading and unloading cargoes.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a hinge device of the present utility model;

FIG. 2 is a partial exploded view of the structure of FIG. 1;

FIG. 3 is a schematic view of the inner hinge of FIG. 1;

FIG. 4 is a schematic illustration of the construction of the brake shaft of FIG. 1;

FIG. 5 is a cross-sectional view of the embodiment with the inner hinge in an upright position and the brake shaft in a locked position;

FIG. 6 is a cross-sectional view of the embodiment with the inner hinge in a horizontal position and the brake shaft in a released position;

FIG. 7 is a cross-sectional view of the embodiment with the inner hinge in a reclined position and the brake shaft in a released position;

FIG. 8 is a schematic view of the structure of the bi-directional folding container of the present utility model when folded inside;

FIG. 9 is a schematic view of the structure of the bi-directional folding container of the present utility model during shipment;

Fig. 10 is a schematic view of the structure of the bi-directional folding container of the present utility model when it is folded outside.

Detailed Description

Referring to fig. 1 to 7, an embodiment of the present utility model discloses a hinge device, which includes an inner hinge 1 and an outer hinge 2, wherein the inner hinge 1 is pivotally connected to the outer hinge 2 through a central rotating shaft 3, the central rotating shaft 3 is axially limited inside the outer hinge 2, the inner hinge 1 can rotate relative to the outer hinge 2 between a horizontal position, an upright position and a leaning position, the horizontal position corresponds to the in-box folding of the inner hinge 1, the leaning position corresponds to the out-box folding of the inner hinge 1, and the specific structure of the hinge device is as follows:

Referring to fig. 1 and 2, the outer hinge 2 includes hinge vertical plates 21 disposed at both sides of the inner hinge 1 and hinge reinforcing plates 22 disposed at sides of the hinge vertical plates 21, the hinge reinforcing plates 22 are welded to the hinge vertical plates 21 in parallel, and the hinge reinforcing plates 22 reinforce the overall strength of the outer hinge 2 on the basis of the hinge vertical plates 21. An upper end plate 25 is welded and fixed to the top of the outer hinge 2, and the upper end plate 25 covers the hinge vertical plate 21 and the hinge reinforcing plate 22, so that a plurality of containers can be stacked and transported based on the upper end plate 25 when the inner hinge 1 is folded inside the case.

Referring to fig. 1 and 3, the central rotating shaft 3 is disposed at one end of the inner hinge 1, the inner hinge 1 includes a straight surface 11 and a curved surface 12 connected to each other, the straight surface 11 and the curved surface 12 are both located at the end of the central rotating shaft 3, and the curved surface 12 is coaxial with the central rotating shaft 3. The curved surface 12 is provided with a crescent shaped first notch 13, i.e. the end of the inner hinge 1 is provided with a first notch 13, the first notch 13 being close to the straight surface 11 and being wholly parallel to the central rotation axis 3. The hinge device further comprises a brake shaft 4 rotatable about its own axis, and referring to fig. 1 and 4, the brake shaft 4 penetrates the outer hinge 2 parallel to the central rotation shaft 3, and a fixing plate 24 is provided on the outer side of the outer hinge 2 to axially fix both ends of the brake shaft 4, respectively. The brake shaft 4 is close to the end of the inner hinge 1, the brake shaft 4 is axially provided with a concave curved wall 41, the concave space is a crescent-shaped second notch 46, the curved wall 41 is matched with the curved surface 12 in shape, when the inner hinge 1 rotates freely, the curved surface 12 can pass through the second notch 46 in an unobstructed manner and is in sliding fit with the curved wall 41, and the straight surface 11 is always in no contact with the curved wall 41.

Referring to fig. 1, one end of the brake shaft 4 passes through the outer hinge 2 a distance, and a rotation stopping hole 42 radially penetrating the brake shaft 4 is provided at the end, and a radial torsion block 45 is provided at the outermost end. The outer hinge 2 is provided with a rotation stopping pin 5 cooperating with the rotation stopping hole 42, a placing table 23 is fixed at the outer side of the outer hinge 2, the rotation stopping pin 5 can be hung on the placing table 23, and when the rotation stopping pin 5 is hung on the placing table 23, the rotation stopping pin 5 can be inserted into the rotation stopping hole 42, and at the moment, the rotation stopping pin 5 limits the rotation of the brake shaft 4. Under the limitation of the stop pin 5, the brake shaft 4 can perform 180-degree reciprocating rotation according to the requirement, namely the second notch 46 also performs 180-degree reciprocating rotation, and the position of the curved wall 41 is changed, so that two position states of the brake shaft 4 are obtained: a locking position and a release position, between which the brake shaft 4 can be rotated.

Referring to fig. 5, when the brake shaft 4 is in the locked position, the inner hinge 1 needs to be in the upright position, at this time, the brake shaft 4 is partially embedded in the first notch 13, and "part" herein means that a part of the brake shaft 4 is embedded in and fills the first notch 13, and the inner hinge 1 is locked in the upright position by the double limitation of the central rotating shaft 3 and the brake shaft 4, which can be used for loading and transporting the folded container, and fig. 9 is combined. When the brake shaft 4 is in the release position, the second notch 46 is opposite to the first notch 13, the brake shaft 4 provides a space for the inner hinge 1 to rotate, and the end part of the inner hinge 1 is limited only by the central rotating shaft 3 and is not limited by the brake shaft 4, so that the inner hinge can rotate in two directions.

When the inner hinge 1 needs to be folded in both directions from the upright position, turning to fig. 6 or fig. 5 to fig. 7, the brake shaft 4 changes from the locking position to the releasing position: the stop pin 5 is removed, the torsion block 45 is manually rotated, and the brake shaft 4 is operated to rotate 180 degrees, so that the brake shaft 4 completely rotates out of the first notch 13, and the second notch 46 is opposite to the first notch 13. Due to the special structure of the inner hinge 1 at the end of the central rotating shaft 3, when the inner hinge 1 rotates to the side of the curved surface 12, the curved surface 12 and the curved wall 41 are matched, the inner hinge 1 can be turned to lie horizontally, and at the moment, the inner hinge 1 is positioned in a horizontal position, and referring to fig. 6, the inner hinge can be used for folding in a container, and can be used for folding in the container, and is combined with fig. 8. When the inner hinge 1 rotates to the side of the straight surface 11, the curved wall 41 is opposite to the straight surface 11 after passing through a small section of curved surface 12, but the straight surface 11 is not constrained by the brake shaft 4, so that the inner hinge 1 can be tilted and laid down finally, and the container can be used for folding the container outside, referring to fig. 7, and fig. 10 is combined.

In order to realize the automatic locking of the inner hinge 1 from the leaning position or the horizontal position to the vertical position, turning to fig. 5 or fig. 7 to fig. 5 referring to fig. 6, a torsion spring 43 is sleeved outside the brake shaft 4, one end of the torsion spring 43 is fixed on the brake shaft 4, and the other end is fixed with a pressing block 44. The brake shaft 4 always has a tendency to rotate under the cooperation of the torsion spring 43 and the pressing block 44, i.e., the brake shaft 4 without blocking can automatically rotate when the limitation of the stop pin 5 is not present. Therefore, before the inner hinge 1 rotates until the curved wall 41 is attached to the curved surface 12 and the first notch 13 is opposite to the second notch 46, the stop pin 5 of the brake shaft 4 in the release position is removed, the brake shaft 4 can rotate under the cooperation of the torsion spring 43 and the pressing block 44 when encountering the first notch 13, and then the brake shaft 4 rotates gradually until being partially embedded into the first notch 13 in the process of rotating the inner hinge 1, so that the inner hinge 1 is locked. When the brake shaft 4 is in the release position, the inner hinge 1 can be rotated directly from the reclined position to the horizontal position or vice versa without removing the rotation stop pin 5, see fig. 6 and 7 for a mutual rotation.

The hinge device thus enables a rotation of the inner hinge 1 relative to the outer hinge 2 in the upright position, the horizontal position and the reclined position by rotating the detent shaft 4 back and forth between the locking position and the release position.

Referring to fig. 8 to 10, a bi-directional folding container is disclosed using a hinge device in a folding container. The container comprises a bottom frame 6 and two end walls 7, wherein two ends of the end walls 7 are arranged at two ends of the bottom frame 6 along the length direction through two hinge devices: the end walls 7 are fixed at both bottom ends thereof to the two inner hinges 1, respectively, and the outer hinge 2 of each hinge device is fixed to the corner pieces 72 at both lengthwise ends of the bottom chassis 6. In order to make the hinge arrangements conform to the standard specifications of the container, the placement table 23 and the stop pin 5 may be arranged on opposite sides of the two hinge arrangements, the opposite sides of the two hinge arrangements not being additionally provided with structures.

Thus, through the hinge device, the end wall 7 rotates along with the inner hinge 1, and referring to fig. 8, the end wall 7 can be folded into the box and is in a horizontal position, so that the basic requirement of stacking and transporting the folded container is met; also capable of being automatically locked in an upright position, see fig. 9, meeting the transportation needs of the loaded cargo; also, the folding type of the container can be outwards folded, referring to fig. 10, by the contact of the top corner pieces 71 at the two ends of the top of the end wall 7 with the ground, the end wall 7 is inclined against the ground and the underframe 6, and in the inclined position, a ramp for loading and unloading goods can be formed after the auxiliary base plate 73 is paved on the end wall 7, for example, if a vehicle needs to be transported, the vehicle can run in through the ramp. The end walls 7 at the two ends can be inclined, so that the loading and unloading efficiency is further improved. When the end wall 7 is folded into the box, a buffer device in the prior art can be adopted, and when the end wall 7 is folded out of the box, auxiliary folding and buffering such as a forklift can be used before the ground and the end wall 7.

In summary, the utility model provides a bi-directional folding container through the bi-directional folding hinge device without loading and unloading goods from the side surface or the upper side of the container, without auxiliary equipment such as a crane or a forklift, thereby reducing the cost and improving the efficiency.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model 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, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. Hinge device, including interior hinge (1) and outer hinge (2), interior hinge (1) pass through center pivot (3) pivot connect in outer hinge (2), its characterized in that:

The end part of the inner hinge (1) is provided with a first notch (13), and the first notch (13) is integrally parallel to the central rotating shaft (3); the hinge device further comprises a rotatable brake shaft (4), wherein the brake shaft (4) penetrates through the outer hinge (2) in parallel to the central rotating shaft (3) and is axially provided with a second notch (46); the brake shaft (4) is close to the end of the inner hinge (1) and rotates between a locking position and a release position;

When the brake shaft (4) is in the locking position, the brake shaft (4) is partially embedded into the first notch (13), and the inner hinge (1) is locked in the vertical position; when the brake shaft (4) is in the release position, the inner hinge (1) can pass freely through the second notch (46) and rotate between a horizontal position and a leaning position.

2. The hinge device according to claim 1, wherein: the inner hinge (1) comprises a straight surface (11) and a curved surface (12) which are connected, the curved surface (12) is provided with the first notch (13), and the first notch (13) is close to the straight surface (11); the brake shaft (4) is provided with a concave curved wall (41), and the concave space is the second notch (46); the curved surface (12) is capable of sliding engagement with the curved wall (41) when the inner hinge (1) is free to rotate.

3. The hinge device according to claim 1, wherein: one end part of the brake shaft (4) passes through the outer hinge (2), and a through rotation stopping hole (42) is radially arranged at the end part; the outer hinge (2) is provided with a rotation stopping pin (5) matched with the rotation stopping hole (42), and the rotation stopping pin (5) limits the rotation of the brake shaft (4).

4. A hinge assembly according to claim 3, wherein: the outside cover of braking axle (4) is equipped with torsional spring (43), one end of torsional spring (43) is fixed in braking axle (4), and the other end is fixed with briquetting (44).

5. The hinge device according to claim 1, wherein: the outer hinge (2) comprises hinge vertical plates (21) arranged on two sides of the inner hinge (1).

6. The hinge apparatus of claim 5, wherein: the outer hinge (2) further comprises a hinge reinforcing plate (22) arranged beside the hinge vertical plate (21), and the hinge reinforcing plate (22) is parallel to the hinge vertical plate (21).

7. The hinge device according to claim 5 or 6, wherein: an upper end plate (25) is arranged at the top of the outer hinge (2).

8. A bi-directional folding container comprising a chassis (6) and two end walls (7), characterized in that: both ends of the end wall (7) are provided at both ends in the longitudinal direction of the chassis (6) by the hinge device according to any one of claims 1 to 7.