Hinge structure for folding container

Abstract

The utility model discloses a hinge structure for a folding container, which is characterized by comprising a container body hinge plate, a middle hinge plate and a door frame hinge plate, and the container body hinge plate and the door frame hinge plate are respectively hinged on two sides of the middle hinge plate and can turn over relative to the middle hinge plate. After the rotating mechanism is applied to the container, the door frame and the container door can rotate by 270 degrees, so that the door frame and the container door are overlapped on the outer side wall of the container in parallel, and the container can be conveniently overlapped, stored and unloaded.

Description

TECHNICAL FIELD

[0001] The utility model relates to container hinge field especially relates to a hinge structure for folding container is applied to container rear. BACKGROUND

[0002] Container sea freight goods often do not have goods to and fro transport after reaching the destination, but empty box also needs to be transported to other places to transport new goods, and the empty box is large in size and light in weight, in order to save freight, so folding container is needed, and the empty box is transported after folding to save cost.

[0003] In the prior art, the container structure generally comprises a box body, door frames arranged on both ends of the box body, and two pairs of opposite box doors arranged on the door frames. The hinge structure for mounting the box door on the door frame comprises a hinge pin and two hinge plates (the two hinge plates can also be a hinge seat and a hinge plate), and the two hinge plates are respectively mounted on the door frame and the box door. The box door mounted by the above-mentioned hinge cannot be folded parallel to the outer side wall of the box body after being opened, and the whole container cannot be effectively folded, so further improvement is needed. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides a hinge structure for folding container, which is applied to the rear of the container and can realize 270° rotation of the door frame and the box door, so that the door frame and the box door are parallel and superimposed on the outer side wall of the container, thereby reducing the size of the container after folding.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A hinge structure for folding container, characterized in that: comprising a box body hinge plate, an intermediate hinge plate and a door frame hinge plate, the box body hinge plate and the door frame hinge plate are respectively hinged on both sides of the intermediate hinge plate and can be flipped relative to the intermediate hinge plate.

[0007] Preferably, a first hinge sleeve is arranged on each side of the intermediate hinge plate, a second hinge sleeve is arranged on each side of the box body hinge plate and the door frame hinge plate facing the intermediate hinge plate, and the first hinge sleeve and the second hinge sleeve are connected and provided with a hinge pin;

[0008] Preferably, the mounting surface of the second hinge sleeve is curved away from the box body hinge plate and the door frame hinge plate, and the first hinge sleeve and the second hinge sleeve are curved in the same direction.

[0009] Preferably, a hinge rear cover is connected to the mounting surface of the box body hinge plate, and the box body hinge plate is installed on the container box body through the hinge rear cover.

[0010] Preferably, the hinge rear cover and the box body hinge plate are connected through screws.

[0011] Preferably, the hinge rear cover and the box hinge plate have connecting holes for the screw to pass through, and the box hinge plate has a counterbore corresponding to the connecting hole on the back surface.

[0012] Preferably, the hinge rear cover has a positioning groove on the side facing the box hinge plate, and the box hinge plate has a positioning clamping platform matched with the positioning groove on the mounting surface.

[0013] Preferably, the width of the positioning groove gradually increases from the groove bottom to the groove opening.

[0014] Preferably, the positioning groove is in a ring structure and is coaxially arranged with the connecting hole.

[0015] The advantages of the utility model are:

[0016] 1. The box hinge plate, the intermediate hinge plate and the door frame hinge plate form a three-fold folding structure, are installed between the box body and the door frame of the container, can make the door frame and the container door rotate 270° on the box body, make the door frame and the container door parallelly adhere to the same side outer wall of the box body after rotating, further reduce the thickness of the folded container, and facilitate the stacking between the upper and lower containers;

[0017] 2. The bending of the first hinge sleeve and the second hinge sleeve can avoid the frictional interference between the outer side wall of the first hinge sleeve and the second hinge sleeve and the third mounting surface when the box hinge plate, the intermediate hinge plate and the door frame hinge plate relatively rotate.

[0018] 3. The box hinge plate is connected with the hinge rear cover through the screw and is installed on the box body, which can facilitate the disassembly and assembly of the door frame and the container door relative to the box body.

[0019] 4. The cooperation of the positioning groove and the positioning clamping platform can improve the accuracy and stability of the installation position of the hinge and the container door on the box body. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the hinge structure for the folding container provided in the embodiment;

[0021] Figure 2 It is a sectional view of the hinge structure for the folding container provided in the embodiment;

[0022] Figure 3 It is a top view of the hinge applied to the container in the folded state provided in the embodiment;

[0023] Figure 4 It is a top view of the hinge applied to the container in the unfolded state provided in the embodiment;

[0024] Figure 5A side view of the hinge provided by the embodiment is applied to a container in an unfolded state. DETAILED DESCRIPTION

[0025] Combination Figures 1 to 5 The folding container hinge structure is further described.

[0026] A folding container hinge structure is characterized by comprising a box hinge plate 1, an intermediate hinge plate 2 and a door frame hinge plate 3, the box hinge plate 1 and the door frame hinge plate 3 are respectively hinged on both sides of the intermediate hinge plate 2 and can be flipped relative to the intermediate hinge plate 2.

[0027] In the container mounting structure, the front of the box hinge plate 1 is a mounting surface 13 for being assembled to the outer side wall of the tail of the container body 9 as shown in Figure 3 , 4 , 5, the front of the door frame hinge plate 3 is a mounting surface 32 for being assembled to the door frame 10 as shown in Figure 3 , 4 , 5, so that the door frame 10 and the container door on the door frame are rotated by 270° relative to the container body, and the door frame 10 can be attached to the same side outer side wall of the container body 9 in the open state as shown in Figure 3 . Specifically, when the door frame 10 is in the closed state, the box hinge plate 1, the intermediate hinge plate 2 and the door frame hinge plate 3 are in a straight line, and the end face of the door frame 10 is attached to the end face of the container body 9 as shown in Figure 4 ; when the folding state is opened, the intermediate hinge plate 2 is rotated by 90° relative to the box hinge plate 1, so that the door frame 10 is rotated by 90° around the box hinge plate 1 with the intermediate hinge plate 2, so that the end face of the door frame 10 is separated from the end face of the container body, and then the door frame hinge plate 3 is rotated by 180° relative to the intermediate hinge plate 2, so that the door frame 10 is parallel and overlapped on the container side wall as shown in Figure 3 . In the opening process, the hinge structure and the door frame 10 do not interfere with the tail position of the container body 9, and the door frame 10 can be smoothly opened and attached to the outer side wall of the container body.

[0028] The first hinge sleeve 21 is provided on both sides of the intermediate hinge plate 2, and the second hinge sleeve 31 is provided on the side of the box hinge plate 1 and the door frame hinge plate 3 facing the intermediate hinge plate 2, the first hinge sleeve 21 and the second hinge sleeve 31 are connected and provided with a hinge pin 5, so as to realize the rotary connection between the box hinge plate 1, the intermediate hinge plate 2 and the door frame hinge plate 3.

[0029] The second hinge sleeve 31 is curved away from the mounting surface of the box hinge plate 1 and the door frame hinge plate 3, and the first hinge sleeve 21 and the second hinge sleeve 31 are curved in the same direction, so that the first hinge sleeve 21 and the second hinge sleeve 31 are located on the back side of the mounting surface or flush with the mounting surface as shown in Figure 2As shown, the structure can make the mounting surface 13 of the box hinge plate 1 smoothly adhere to the mounting surface of the box 9, the mounting surface 32 of the door frame hinge plate 3 smoothly adhere to the mounting surface of the door frame 10, and the first hinge sleeve 21 and the second hinge sleeve 31 not interfere with the box 9 and the door frame 10 when rotating.

[0030] The mounting surface 13 of the box hinge plate 1 is connected with the hinge rear cover 4, the box hinge plate 1 is installed to the container box through the hinge rear cover 4, the hinge rear cover 4 is connected with the box hinge plate 1 through a plurality of screws 6, and the side of the hinge rear cover 4 away from the box hinge plate 1 is fixed on the box 9 by welding. This structure can facilitate the disassembly operation of the box hinge plate 1 relative to the hinge rear cover 4 and the box 9.

[0031] The box hinge plate 1 and the hinge rear cover 4 have connecting holes 7 that are mutually butted and through which the screws 6 pass, and the box hinge plate 1 has a counterbore 8 corresponding to the connecting hole 7 on the back surface, which hides the head 61 of the screw 6.

[0032] The hinge rear cover 4 has a plurality of positioning grooves 41 on the side facing the box hinge plate 1, and the box hinge plate 1 has a plurality of positioning clamping tables 11 on the mounting surface 13 that cooperate with the positioning grooves 41. Through the cooperation of the positioning grooves 41 and the positioning clamping tables 11, the box hinge plate 1 can be precisely assembled to the hinge rear cover 4, and the stability after assembly can be ensured, avoiding the problem that the box hinge plate 1 slides relative to the hinge rear cover 4, causing the position of the door frame 10 to change.

[0033] The width of the positioning groove 41 gradually increases from the groove bottom to the groove opening, so that the groove opening of the positioning groove 41 is larger, facilitating the positioning clamping table 11 to be clamped into the positioning groove 41.

[0034] The positioning groove 41 is an annular structure and is coaxially arranged with the connecting hole 7, that is, the positioning groove 41 and the positioning clamping table 11 are annular structures, and the connecting hole 7 is located at the center position of the positioning groove 41 and the positioning clamping table 11. Under this structure, when the screw 6 is tightened, the clamping of the positioning groove 41 and the positioning clamping table 11 is uniformly stressed, and the positioning clamping table 11 is stably pressed into the positioning groove 41, which can ensure the stability and accuracy during assembly, and also ensure the stability and structural strength during subsequent use.

[0035] Unless otherwise defined, all terms used in the disclosure, such as "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, are to be interpreted, unless otherwise indicated, on the basis of the positions of the figures described and illustrated in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and therefore the terms describing the orientation or position relationship in the present application are merely used for exemplary description, and cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the terms describing the orientation or position relationship in the present application are merely used for exemplary description, and cannot be understood as limiting the patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0036] Unless otherwise specified and limited, in the present application, the terms "provided", "connected" and "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0037] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the scope of the present application is within the protection scope of the present application. It should be noted that for those of ordinary skill in the art, some improvements and decorations without departing from the principles of the present application are also considered to be within the protection scope of the present application.

Claims

1. A hinge structure for a folding container, characterized in that: It includes a housing hinge plate, a middle hinge plate, and a door frame hinge plate. The housing hinge plate and the door frame hinge plate are respectively hinged to both sides of the middle hinge plate and can be rotated relative to the middle hinge plate.

2. The hinge structure for a folding container according to claim 1, characterized in that: in The middle hinge plate has a first hinge sleeve on both sides, and a second hinge sleeve on the side of the box hinge plate and the door frame hinge plate facing the middle hinge plate. The first hinge sleeve and the second hinge sleeve are connected and are provided with hinge pins. The second hinge sleeve is bent away from the mounting surfaces of the box hinge plate and the door frame hinge plate, while the first hinge sleeve and the second hinge sleeve are bent in the same direction.

3. The hinge structure for a folding container according to claim 1, characterized in that: A hinge cover is connected to the mounting surface of the container hinge plate, and the container hinge plate is installed onto the container body through the hinge cover.

4. The hinge structure for a folding container according to claim 3, characterized in that: The hinge back cover is connected to the box hinge plate by screws.

5. The hinge structure for a folding container according to claim 4, characterized in that: The hinge back cover and the housing hinge plate have connection holes for screws to pass through, and there are countersunk holes on the back of the housing hinge plate corresponding to the connection holes.

6. The hinge structure for a folding container according to claim 3, characterized in that: The hinge back cover has a positioning groove on the side facing the hinge plate of the housing, and the mounting surface of the hinge plate of the housing has a positioning plate that mates with the positioning groove.

7. The hinge structure for a folding container according to claim 6, characterized in that: The width of the positioning groove gradually increases from the bottom to the opening.

8. The hinge structure for a folding container according to claim 7, characterized in that: The positioning groove is an annular structure and is coaxially arranged with the connecting hole.

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