CN220616921U

CN220616921U - Twist lock structure and folding container with same

Info

Publication number: CN220616921U
Application number: CN202322126295.4U
Authority: CN
Inventors: 姚飞; 朱春锋; 徐悦晨
Original assignee: Shanghai Huanyu Logistics Technology Co Ltd; Dongfang International Container Qidong Co Ltd
Current assignee: Shanghai Huanyu Logistics Technology Co Ltd; Dongfang International Container Qidong Co Ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-03-19
Anticipated expiration: 2033-08-08

Abstract

The application discloses twist-lock structure and have folding container of this structure, twist-lock structure includes twist-lock body, connecting piece and rotation axis, and twist-lock body and rotation axis are connected respectively at the both ends of connecting piece, and the rotation axis activity sets up in the outside of fixed hinge along folding container's length direction, and rotation axis perpendicular to pivot, and when twist-lock body is located the position of use, the connecting piece passes through from fixed hinge's side, and the level of connecting piece is not higher than fixed hinge's highest point's level. The connecting piece bypasses along the side edge of the fixed hinge, so that a groove is not required to be formed in the corner piece plate of the fixed hinge, the processing difficulty of the corner piece plate or the fixed hinge is reduced, and the workload is reduced; meanwhile, the movement mode of the twist lock body is realized through a rotating shaft perpendicular to the pivot shaft, and the twist lock is more convenient and safer than the original overturning operation.

Description

Twist lock structure and folding container with same

Technical Field

The utility model relates to the field of folding containers, in particular to a twist lock structure of a folding container.

Background

When the folding container is transported in empty, the end walls are folded through the hinge device, and then other folded containers are stacked upwards in sequence, so that each layer of container is fixed, sliding is prevented during transportation, twist locks are arranged on the hinge device, the twist lock overturning mode of the folding container commonly used at present mainly comprises two modes, one mode is that the twist lock overturns towards the inner side of the container (in the width direction of the container), and the folding container needs to occupy the space in the container for storage, so that the storage of cargoes in the container is affected; another version of the utility model disclosed in application number 202222076755 2, entitled hinge assembly and collapsible container, is shown in fig. 1, where twist lock 310 is in the storage position and the top surface of second plate 342 is provided with upwardly opening recess 344; when the twist-lock 310 is pivoted to the use position, as shown in fig. 2, the twist-lock arms 320 are positioned within the grooves 344 and the twist-lock arms 320 are configured not to extend beyond the top surface of the second plate 342. The solution is turned over towards the end of the box (the length of the box), and the corner fitting plate (i.e. the second plate 342 in fig. 1) needs to be slotted (notched) to store the connection plate of the twist lock (i.e. the twist lock arm 320 in fig. 2); and after the connecting plate of the twist lock is turned over, the connecting plate is stressed greatly, and the phenomenon of breakage of the connecting plate is easy to occur.

Disclosure of Invention

The utility model aims to provide a twist lock structure which does not occupy space in a box, does not need grooving of a diagonal member plate and can better protect the twist lock.

According to one aspect of the present utility model, there is provided a twist-lock structure provided to a hinge device of a folding container, the hinge device including a movable hinge and a fixed hinge connected by a pivot shaft, the twist-lock structure including a twist-lock body, a connecting member, and a rotation shaft, both ends of the connecting member being respectively connected to the twist-lock body and the rotation shaft, the rotation shaft being movably provided to an outer side of the fixed hinge in a length direction of the folding container, and the rotation shaft being perpendicular to the pivot shaft, the twist-lock body being moved between a use position and a storage position by the rotation shaft; when the twist lock body is positioned at the storage position, the twist lock structure is arranged at the outer side of the fixed hinge along the length direction of the folding container; when the twistlock body is located at the using position, the connecting piece passes through the side edge of the fixed hinge, and the horizontal height of the connecting piece is not higher than the horizontal height of the highest point of the fixed hinge.

In some embodiments, a U-shaped corner fitting plate is disposed above the fixed hinge, the corner fitting plate is perpendicular to the rotation axis, the U-shaped groove of the corner fitting plate is a twist lock hole, when the twist lock body is in the use position, the twist lock body falls into the interior of the twist lock hole, and the connecting piece starts from the rotation axis and winds along the horizontal side edge of the corner fitting plate to the interior of the twist lock hole.

Further, the connecting piece includes first connecting portion and second connecting portion, first connecting portion with second connecting portion are located the coplanar, one end of first connecting portion with one end fixed connection or swing joint of second connecting portion, another end fixed connection of first connecting portion one end of rotation axis, another end fixed connection of second connecting portion the twistlock body.

In some embodiments, the fixing hinge is fixed with a sleeve along an outer side of the length direction of the folding container, the rotating shaft is positioned in the middle of the sleeve, and a baffle is arranged at the extreme end of the rotating shaft and used for preventing the rotating shaft from being separated from the sleeve.

In some embodiments, a pallet is provided extending from a side edge of the chassis of the folding container, the pallet being configured to support the twistlock body in the storage position while retaining the twistlock body.

Based on the technical scheme, the utility model has the beneficial effects that: the connecting piece bypasses along the side edge of the fixed hinge, so that a groove is not required to be formed in the corner piece plate of the fixed hinge, the processing difficulty of the corner piece plate or the fixed hinge is reduced, and the workload is reduced; meanwhile, the movement mode of the twist lock body is realized through a rotating shaft perpendicular to the pivot shaft, so that the twist lock is more convenient and safer than the original overturning operation; when the twistlock body falls down after rotating in place, the bottom is provided with the supporting plate to drag the twistlock body, and the connection part among the rotating shaft, the connecting piece and the twistlock body can reduce impact force and can better protect the twistlock structure.

Meanwhile, the folding container has the advantages of the twist lock structure and the corresponding advantages.

Drawings

FIG. 1 is a schematic view of a prior art twist-lock in a storage position;

FIG. 2 is a schematic view of a prior art twist lock in a use position;

FIG. 3 is a schematic view of the twist-lock structure of the present utility model in a storage position;

FIG. 4 is a front view of the twist-lock structure of the present utility model in a storage position;

FIG. 5 is a top view of the twist-lock structure of the present utility model in a storage position;

FIG. 6 is a front view of the twist-lock structure of the present utility model in a use position;

fig. 7 is a top view of the twist-lock structure of the present utility model in a use position.

Detailed Description

The utility model will be described in further detail with reference to the accompanying drawings, wherein the twist-lock structure is provided in a hinge device of a folding container.

The hinge means comprise a living hinge and a fixed hinge 4 connected by a pivot axis 41, the folding container being mostly in use when the living hinge is in an upright position, without the use of a twist-lock structure in the storage position. When the movable hinge is in the lying position, the folding container is in a transportation state, and a plurality of containers are generally stacked for transportation, and the twist lock structure is required to be rotated from the storage position to the use position at the moment, so that the upper layer container and the lower layer container are locked. Based on the above basic structure, fig. 3 to 7 are all corresponding structures of the twist-lock structure when the movable hinge is in the lying state with respect to the fixed hinge 4 in the storage position and the use position, so as to better explain, and since the structural design of the movable hinge does not affect the twist-lock structure, the movable hinge is not shown in the drawings.

The twist lock structure comprises a twist lock body 1, a connecting piece 2 and a rotating shaft 3, wherein two ends of the connecting piece 2 are respectively connected with the twist lock body 1 and the rotating shaft 3, the rotating shaft 3 is made of round steel with a certain length, and is movably arranged on the outer side of a fixed hinge 4 along the length direction of a folding container, and the rotating shaft 3 is perpendicular to a pivot shaft 41. The embodiment is characterized in that a sleeve 44 is fixed on the outer side of the fixed hinge 4 along the length direction of the folding container, the rotating shaft 3 is positioned in the middle of the sleeve 44, a baffle 5 is arranged at the tail end of the rotating shaft 3, the baffle 5 is circular, the circle center is arranged on the axis of the rotating shaft 3, the diameter of the baffle 5 is larger than that of the sleeve 44, and therefore the baffle 5 can prevent the rotating shaft 3 from being pulled out of the sleeve 44 in movement.

The connecting piece 2 comprises a first connecting part 21 and a second connecting part 22, wherein the first connecting part 21 is specifically L-shaped round steel, the bending part is a round angle, and the second connecting part 22 is 1/4 circular arc-shaped round steel. The first connecting portion 21 and the second connecting portion 22 are located in the same plane, the short side end of the first connecting portion 21 is fixedly connected with the rotating shaft 3, the long side end of the first connecting portion 21 is connected with one end of the second connecting portion 22, the other end of the second connecting portion 22 is fixedly connected with the twistlock body 1, and meanwhile, the arc of the second connecting portion 22 faces the first connecting portion 21.

The twist lock body 1 and the connecting piece 2 move between the use position and the storage position through the rotating shaft 3, when the twist lock body 1 is positioned at the storage position, the twist lock structure is placed on the outer side of the fixed hinge 4 along the length direction of the folding container, and the twist lock structure is specifically expressed as: the side of the underframe (not shown in the figure) of the folding container is extended and provided with a supporting plate 6, and the supporting plate 6 is arranged on the outer side of the fixed hinge 4 along the length direction of the folding container and used for supporting the twistlock body 1 at the storage position and limiting the twistlock body 1. The supporting plate 6 comprises a supporting portion 61 and a limiting portion 62, the supporting portion 61 is used for supporting the torsion body falling onto the supporting portion, the limiting portion 62 is arranged in two, the two limiting portions are symmetrically arranged on two corresponding sides of the supporting portion 61, an obtuse angle is formed between each limiting portion 62 and the supporting portion 61, and the three limiting portions are matched with each other to limit the torsion lock body 1 falling onto the supporting portion 61.

When the twistlock body 1 is in the use position, the connecting piece 2 passes through the side edge of the fixed hinge 4, and the horizontal height of the connecting piece 2 is not higher than the horizontal height of the highest point of the fixed hinge 4, which is specifically expressed as follows: the fixed hinge 4 generally uses a U-shaped corner fitting plate 42, the corner fitting plate 42 is disposed above the fixed hinge 4 and is perpendicular to the rotation axis 3, the U-shaped groove of the corner fitting plate 42 is a twist lock hole 43, when the twist lock body 1 is located at the use position, the twist lock body 1 falls into the twist lock hole 43, and the connecting piece 2 starts from the rotation axis 3, winds around the horizontal side edge of the corner fitting plate 42 into the twist lock hole 43, and the two horizontal side edges of the corner fitting plate 42 are selected to be on one side, i.e. the connecting piece 2 is just in the same plane with the corner fitting plate 42 at this time, and extends from the closed position of the U-shape to the opening of the U-shape along one side edge of the corner fitting plate 42. Therefore, redundant bulges do not influence the stacking and transportation of a plurality of folding containers, and when stacking, the twistlock body 1 is twisted from the operation hole of the fixed hinge, so that the upper and lower folded containers can be locked.

The twist-lock body 1 requires three steps from the storage position to the use position:

in the first step, the twistlock body 1 in the storage position is lifted to a limit that the twistlock body 1 is separated from the pallet 6 and the level of the twistlock body 1 needs to be higher than the level of the corner fitting plate 42.

In the second step, the connector 2 and the twist lock body 1 are rotated 180 ° in this plane by taking the rotation axis 3 as a reference, so that the connector is rotated above the twist lock hole 43, and a specific rotation direction is required to correspond to a specific bending direction of the connector 2. In this embodiment, the twist-lock body 1 is rotated clockwise by 180 ° as seen in fig. 5 and 7.

Thirdly, the twistlock body 1 is put down, and after the twistlock body 1 falls down, the twistlock body can be clamped by the twistlock hole 43, and at the moment, the twistlock body is located at the using position.

The twist lock body 1 is similar to the steps from the use position to the storage position, and the twist lock body is also subjected to three steps of lifting, rotating and falling. And in the connecting piece 2, the connection between the first connecting part 21 and the second connecting part 22 can be fixed connection or movable connection. The fixed connection can be realized by adopting a welding mode, and the whole connecting piece 2 is integrated after welding, and the change of the twist lock body 1 between two positions can be realized only by the operation of the three steps. If the movable connection is used, the end of the second connecting portion 22 can be sleeved at the end of the long side of the first connecting portion 21, but is not separated from the first connecting portion 21, that is, the second connecting portion 22 and the twist lock body 1 can rotate with the long side of the first connecting portion 21 as an axis, so that the movement of the twist lock body 1 in the three steps can be more flexible.

Based on the application, the utility model simultaneously applies for protection of a folding container, and the folding container has the twist lock structure.

In summary, the connecting piece 2 of the twist lock structure of the utility model bypasses along the side edge of the fixed hinge 4, so that the corner fitting plate 42 of the fixed hinge 4 does not need to be grooved, the processing difficulty of the corner fitting plate 42 or the fixed hinge 4 is reduced, and the workload is reduced; meanwhile, the movement mode of the twistlock body 1 is realized through the rotating shaft 3 vertical to the pivot shaft 41, which is more convenient and safer than the original overturning operation; when the twistlock body 1 falls down after rotating in place, the bottom is provided with the supporting plate 6 to drag the twistlock body 1, and the connection part among the rotating shaft 3, the connecting piece 2 and the twistlock body 1 can reduce impact force and can better protect the twistlock structure.

The foregoing is merely one embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several similar modifications and improvements can be made without departing from the inventive concept, and these should also be considered as being within the scope of the present utility model.

Claims

1. A twist-lock arrangement provided in a hinge device for a collapsible container, the hinge device comprising a living hinge and a fixed hinge (4) connected by a pivot axis (41), characterized in that:

the twist lock structure comprises a twist lock body (1), a connecting piece (2) and a rotating shaft (3), wherein two ends of the connecting piece (2) are respectively connected with the twist lock body (1) and the rotating shaft (3), the rotating shaft (3) is movably arranged on the outer side of the fixed hinge (4) along the length direction of the folding container, the rotating shaft (3) is perpendicular to the pivoting shaft (41), and the twist lock body (1) moves between a use position and a storage position through the rotating shaft (3);

when the twist lock body (1) is positioned at the storage position, the twist lock structure is arranged at the outer side of the fixed hinge (4) along the length direction of the folding container; when the twistlock body (1) is located at the using position, the connecting piece (2) passes through the side edge of the fixed hinge (4), and the horizontal height of the connecting piece (2) is not higher than the horizontal height of the highest point of the fixed hinge (4).

2. The twist-lock structure as set forth in claim 1, wherein: the utility model discloses a twist lock is characterized by including fixed hinge (4), fixed hinge (4) top is provided with U-shaped corner fitting board (42), corner fitting board (42) perpendicular to rotation axis (3), the U-shaped groove of corner fitting board (42) is twistlock hole (43), works as twistlock body (1) are located when using the position, twistlock body (1) falls into twistlock hole (43) inside, just connecting piece (2) are from rotation axis (3) start, follow the horizontal side of corner fitting board (42) winds to twistlock hole (43) inside.

3. The twist-lock structure as set forth in claim 2, wherein: the connecting piece (2) comprises a first connecting part (21) and a second connecting part (22), the first connecting part (21) and the second connecting part (22) are located in the same plane, one end part of the first connecting part (21) and one end part of the second connecting part (22) are fixedly connected or movably connected, the other end part of the first connecting part (21) is fixedly connected with one end part of the rotating shaft (3), and the other end part of the second connecting part (22) is fixedly connected with the twist lock body (1).

4. The twist-lock structure as set forth in claim 1, wherein: the fixed hinge (4) is fixed with a sleeve (44) along the outer side of the length direction of the folding container, the rotating shaft (3) is positioned in the middle of the sleeve (44) and a baffle (5) is arranged at the extreme end of the rotating shaft (3), and the baffle (5) is used for preventing the rotating shaft (3) from being separated from the sleeve (44).

5. The twist-lock structure as set forth in claim 1, wherein: the folding container is characterized in that a supporting plate (6) is arranged on the side edge of the underframe of the folding container in an extending mode, the supporting plate (6) is used for supporting the twistlock body (1) in a storage position, and meanwhile limiting is conducted on the twistlock body (1).

6. A collapsible container having a twist-lock arrangement as claimed in any one of claims 1 to 5.