Hinge device and gantry container having the same

Abstract

The present application provides a hinge device and a platform-type container having the same, wherein the hinge device includes a first hinge assembly, a second hinge assembly, a third hinge assembly, a first locking assembly, and a second locking assembly, wherein the second hinge assembly is pivotally connected to the first hinge assembly about a first axis; the third hinge assembly is pivotally connected to the second hinge assembly about a second axis; the first locking assembly is movably connected to the first hinge assembly between a first locked position and a first unlocked position; the second locking assembly is movably connected to the third hinge assembly between a second locked position and a second unlocked position, or the second locking assembly is movably connected to the second hinge assembly between the second locked position and a second unlocked position. The present application can automatically unlock and lock the first locking assembly or the second locking assembly without additional operation during the operation of flipping the end wall to the upright position, making the use of the platform container more labor-saving and efficient.

Description

Technical Field

[0001] The present application generally relates to the technical field of container structures, and more particularly to a hinge device and a platform-type container having the same. Background Art

[0002] As a type of container, a pallet container consists of a cargo-carrying chassis and end walls at either end. With foldable end walls, pallet containers meet the same lifting, stacking, and transportation requirements as conventional containers. When empty, the end walls are folded onto the chassis, and multiple pallet containers are linked together to form a module. This minimizes space, reduces the number of cranes required at the dock, and reduces the costs of empty container transportation, storage, and dock handling. As a result, pallet containers with foldable end walls are gaining popularity among customers.

[0003] Figure 1 The figure shows a platform-type container with bidirectionally reversible end walls in the related art. The end wall 50 is pivotally connected to the base frame 30 via a hinge device 10. The hinge device 10 usually uses two sets of pin-shaft sliding hammer mechanisms to achieve folding and turning functions. Figure 1 This type of folding box requires manual operation of the sliding hammer 11 to strike the movable pin 12 to lock or unlock the end wall 50 in the vertical position, or to switch between the folded and turned-out positions. This process is time-consuming and labor-intensive. Due to human negligence, people may forget to lock the hinge, which is difficult to detect, posing a significant safety hazard during subsequent lifting, storage, and transportation.

[0004] Therefore, it is necessary to provide a hinge device and a platform-type container having the same to at least partially solve the above problems. Summary of the Invention

[0005] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention of this application is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the present application provides a hinge device for a platform container in a first aspect, the hinge device comprising:

[0007] a first hinge assembly for connecting to a chassis of the platform container;

[0008] a second hinge assembly pivotally connected to the first hinge assembly about a first axis between a first position and a second position;

[0009] a third hinge assembly for connection to an end wall of the platform container, the third hinge assembly being pivotally connected to the second hinge assembly about a second axis between a third position and a fourth position, the second axis being parallel to the first axis, wherein a pivoting direction of the third hinge assembly from the third position to the fourth position is opposite to a pivoting direction of the second hinge assembly from the first position to the second position;

[0010] a first locking assembly movably connected to the first hinge assembly relative to the first hinge assembly between a first locking position locking the second hinge assembly and a first unlocking position releasing the second hinge assembly; and

[0011] a second locking assembly, wherein the second locking assembly is movably connected to the third hinge assembly between a second locking position for locking the third hinge assembly and a second unlocking position for releasing the third hinge assembly relative to the third hinge assembly, or the second locking assembly is movably connected to the second hinge assembly between the second locking position for locking the third hinge assembly and the second unlocking position for releasing the third hinge assembly relative to the second hinge assembly,

[0012] Wherein, the hinge device is constructed such that:

[0013] When the hinge device is mounted on the platform container, the first axis is parallel to the end beam of the platform container.

[0014] When the first locking assembly is in a first unlocking position for releasing the second hinge assembly, and the second locking assembly is in a second locking position for locking the third hinge assembly, the second hinge assembly is in the first position, and the end wall is turned outward relative to the base frame to the outside of the base frame;

[0015] When the first locking assembly is in a first locking position for locking the second hinge assembly, and the second locking assembly is in a second unlocking position for releasing the third hinge assembly, the third hinge assembly is in the third position and the second hinge assembly is in the second position, and the end wall is folded relative to the base frame to above the base frame.

[0016] According to the first aspect of the present application, a hinge device is provided with a first locking assembly that can maintain the second hinge assembly in the first locking position when the second hinge assembly is in the second position, and disengage the first locking assembly from the first locking position during the second hinge assembly's pivoting toward the second position, allowing the second hinge assembly to reach the second position. A second locking assembly is provided that can maintain the third hinge assembly in the second locking position when the third hinge assembly is in the fourth position, and disengage the second locking assembly from the second locking position during the third hinge assembly's pivoting toward the fourth position, allowing the third hinge assembly to reach the fourth position. The present application provides for a three-stage hinge device in which the second hinge assembly is disposed between the first and second hinge assemblies in the height direction. When the end wall is turned outward to serve as a loading ramp, the end wall is connected to the first hinge assembly via the second hinge assembly. The height difference between the outward ramp and the loading surface of the chassis is minimized, making loading more convenient. When the end wall is folded inward, the end wall is flipped onto the chassis platform via the third hinge assembly. The second axis is slightly higher than the first axis. After folding, the chassis can be placed at a higher height, thereby reducing the chassis's weight while maintaining a certain strength and lowering costs.

[0017] A second aspect of the present application provides a hinge device for a platform-type container, the hinge device comprising:

[0018] a first hinge assembly for connecting to a chassis of the platform container;

[0019] a second hinge assembly pivotally connected to the first hinge assembly about a first axis between a first position and a second position;

[0020] a third hinge assembly for connection to an end wall of the platform container, the third hinge assembly being pivotally connected to the second hinge assembly about a second axis between a third position and a fourth position, the second axis being parallel to the first axis, wherein a pivoting direction of the third hinge assembly from the third position to the fourth position is opposite to a pivoting direction of the second hinge assembly from the first position to the second position;

[0021] a first locking assembly movably connected to the first hinge assembly relative to the first hinge assembly between a first locking position locking the second hinge assembly and a first unlocking position releasing the second hinge assembly; and

[0022] a second locking assembly, wherein the second locking assembly is movably connected to the third hinge assembly between a second locking position for locking the third hinge assembly and a second unlocking position for releasing the third hinge assembly relative to the third hinge assembly, or the second locking assembly is movably connected to the second hinge assembly between the second locking position for locking the third hinge assembly and the second unlocking position for releasing the third hinge assembly relative to the second hinge assembly,

[0023] Wherein, the hinge device is constructed such that:

[0024] When the second hinge assembly is in the second position, the first locking assembly is in the first locking position and is locked between the first hinge assembly and the second hinge assembly, so that the second hinge assembly cannot pivot relative to the first hinge assembly. When the third hinge assembly is in the third position and the fourth position, the first locking assembly is always kept in the first locking position, and the first locking assembly can always be kept in the first locking position without external force.

[0025] During the process of the third hinge assembly pivoting from the third position to the fourth position, the third hinge assembly or the second hinge assembly is used to apply a second unlocking force to the second locking assembly so that the second locking assembly is disengaged from the second locking position; when the third hinge assembly is in the fourth position, the second locking assembly is in the second locking position to be clamped between the third hinge assembly and the second hinge assembly, so that the third hinge assembly cannot pivot relative to the second hinge assembly, and during the process of the second hinge assembly pivoting between the first position and the second position, the second locking assembly is always maintained in the second locking position, and the second locking assembly can always be maintained in the second locking position without the application of external force;

[0026] When the hinge device is mounted to the platform container, the first axis is parallel to the end beam of the platform container, so that when the second hinge assembly is in the second position and the third hinge assembly is in the fourth position, the end wall is upright relative to the base frame.

[0027] According to the hinge device of the second aspect of the present application, the first locking component is arranged so that it can remain in the first locking position when the second hinge component is in the second position, and the first locking component is disengaged from the first locking position during the process of the second hinge component pivoting toward the second position to allow the second hinge component to reach the second position; the second locking component is arranged so that it can remain in the second locking position when the third hinge component is in the fourth position, and the second locking component is disengaged from the second locking position during the process of the third hinge component pivoting toward the fourth position to allow the third hinge component to reach the fourth position. By adopting the technical solution of the present application, when the hinge device of the present application is applied to a platform-type container, it can help the end wall of the platform-type container to pivot in opposite directions. At the same time, in the process of the end wall moving to the position upright on the base frame, the first locking component can be moved to the first unlocked position and the first locked position in succession, and the second locking component can be moved to the second unlocked position and the second locked position in succession without manual operation. Moreover, the first locking component can be maintained in the first locked position when the end wall is in the position upright on the base frame, and the second locking component can be maintained in the second locked position when the end wall is in the position upright on the base frame, making the flipping operation of the end wall more convenient and labor-saving, thereby improving operational efficiency and reducing labor intensity.

[0028] Optionally, the hinge device further includes:

[0029] a first operating portion connected to the first locking assembly, the first operating portion being configured to drive the first locking assembly to move when a first operating force is applied to the first operating portion, so as to deviate the first locking assembly from the first locking position; and

[0030] a second operating portion connected to the second locking assembly, the second operating portion being configured to drive the second locking assembly to move when a second operating force is applied to the second operating portion, so as to cause the second locking assembly to deviate from the second locking position;

[0031] Wherein, the hinge device is constructed as follows:

[0032] After the first operating force is released from the first operating portion, the first locking assembly returns to the first locking position under the action of an automatic restoring force;

[0033] After the second operating force is released from the second operating portion, the second locking assembly returns to the second locking position under the action of the automatic restoring force.

[0034] Optionally, the first locking assembly is pivotally connected to the first hinge assembly about a third axis parallel to the first axis between the first locked position and the first unlocked position,

[0035] The first locking assembly includes a first locking block, and when the second hinge assembly is in the second position, the first locking block is clamped between the second hinge assembly and the first hinge assembly to restrict the second hinge assembly from moving toward the first position;

[0036] The second locking assembly is pivotally connected to the third hinge assembly about a fourth axis parallel to the first axis between the second locked position and the second unlocked position,

[0037] The second locking assembly includes a second locking block. When the third hinge assembly is located at the fourth position, the second locking block is clamped between the second hinge assembly and the third hinge assembly to restrict the third hinge assembly from moving toward the third position.

[0038] Optionally, the first locking assembly further comprises a first bracket and a first counterweight, the first bracket being pivotally connected to the first hinge assembly around the third axis, the first bracket being connected to the first locking block, the first counterweight being connected to the first bracket, the first counterweight and the first locking block being respectively located on either side of the third axis, the first counterweight being configured to apply an automatic restoring force to the first locking assembly during the process of the first hinge assembly pivoting from the first position to the second position, so that the first locking assembly pivots toward the first locked position; when the second hinge assembly moves to the second position, the first locking block returns to the first locked position under the action of the automatic restoring force along with the first locking assembly;

[0039] The second locking assembly further comprises a second bracket and a second counterweight, the second bracket being pivotally arranged about the fourth axis, the second locking block being movably connected to the second bracket, the second counterweight being connected to the second bracket, the second counterweight and the second locking block being respectively located on either side of the fourth axis, the second counterweight being configured to provide an automatic restoring force for the second locking assembly during a process in which the third hinge assembly pivots from the third position to the fourth position, so that the second locking assembly pivots toward the second locked position; when the third hinge assembly moves to the fourth position, the second locking block returns to the second locked position under the action of the automatic restoring force along with the second locking assembly;

[0040] The second hinge assembly includes a first boss and a second boss. When the second hinge assembly is in the second position, the first boss and the second boss are respectively located on opposite sides of the second hinge assembly along a first direction, wherein the first direction is perpendicular to the first axis.

[0041] When the second hinge assembly is located at the second position, the first locking block is clamped between the first boss and the first hinge assembly.

[0042] When the third hinge assembly is located at the fourth position, the second locking block is clamped between the second boss and the third hinge assembly.

[0043] Optionally, the hinge device further comprises a limiter, wherein the limiter is pivotally connected to the second hinge assembly about a seventh axis parallel to the first axis between a stop position and an avoidance position, and the limiter located at the stop position is used to apply a force to the second locking assembly located at the second unlocked position, so that the second locking assembly remains in the second unlocked position.

[0044] The limiter includes a limit operating portion, and the limit operating portion is used to be operated to cause the limiter to pivot between the stop position and the avoidance position.

[0045] Optionally, the hinge device further comprises a chain and a synchronous link, wherein the chain is pivotally connected to the second hinge assembly around an eighth axis parallel to the first axis, the chain is pivotally connected to one end of the synchronous link around a ninth axis parallel to the eighth axis, and the other end of the synchronous link is pivotally connected to the limiter around a tenth axis parallel to the ninth axis, and the chain has a chain stop lever.

[0046] When the limiter is in the stop position, the locking lever abuts against the first locking assembly in the first locking position; the first locking assembly is used to push the locking lever during the movement of the first locking assembly from the first locking position to the first unlocking position, so as to drive the limiter to pivot to the avoidance position via the chain.

[0047] Optionally, the first locking assembly further comprises a first bracket and a first counterweight, the first bracket being pivotally connected to the first hinge assembly around the third axis, the first bracket being connected to the first locking block, the first counterweight being connected to the first bracket, the first counterweight and the first locking block being respectively located on either side of the third axis, the first counterweight being configured to apply an automatic restoring force to the first locking assembly during the process of the first hinge assembly pivoting from the first position to the second position, so that the first locking assembly pivots toward the first locked position; when the second hinge assembly moves to the second position, the first locking block returns to the first locked position under the action of the automatic restoring force along with the first locking assembly;

[0048] The second locking assembly further comprises a second bracket and a second counterweight, the second bracket being pivotally arranged about the fourth axis, the second locking block being movably connected to the second bracket, the second counterweight being connected to the second bracket, the second counterweight and the second locking block being respectively located on either side of the fourth axis, the second counterweight being configured to provide an automatic restoring force for the second locking assembly during a process in which the third hinge assembly pivots from the third position to the fourth position, so that the second locking assembly pivots toward the second locked position; when the third hinge assembly moves to the fourth position, the second locking block returns to the second locked position under the action of the automatic restoring force along with the second locking assembly;

[0049] The second hinge assembly includes a first boss, and the third hinge assembly includes a third boss.

[0050] When the second hinge assembly is in the second position and the third hinge assembly is in the fourth position, the first boss and the third boss are oriented away from each other along the first direction, and the first direction is perpendicular to the first axis.

[0051] When the second hinge assembly is located at the second position, the first locking block is clamped between the first boss and the first hinge assembly.

[0052] When the third hinge assembly is located at the fourth position, the second locking block is clamped between the third boss and the second hinge assembly.

[0053] Optionally, the hinge device further includes a first positioning assembly connected to the first locking assembly, the first positioning assembly including a first positioning ball and a first elastic member, the first positioning ball being movably arranged in a direction parallel to the first axis, and the first elastic member being used to apply an elastic force to the first positioning ball toward the second hinge assembly.

[0054] The second hinge assembly includes a first receiving hole for receiving the first positioning ball.

[0055] During the process of the first locking assembly pivoting around the third axis, the first locking assembly passes through the first locking position, the first unlocking position, and the first manual unlocking position in sequence. When the first locking assembly is located at the first manual unlocking position and the second hinge assembly is located at the second position, the first positioning ball is partially located in the first accommodating hole, and the volume of the first positioning ball located in the first accommodating hole is less than or equal to half of the volume of the first positioning ball.

[0056] Optionally, the hinge device further includes a second positioning assembly connected to the second locking assembly, the second positioning assembly including a second positioning ball and a second elastic member, the second positioning ball being movably arranged in a direction parallel to the first axis, and the second elastic member being used to apply an elastic force to the second positioning ball toward the third hinge assembly.

[0057] The third hinge assembly includes a second receiving hole for receiving the second positioning ball.

[0058] During the process of the second locking assembly pivoting around the fourth axis, the second locking assembly passes through the second locking position, the second unlocking position, and the second manual unlocking position in sequence. When the second locking assembly is located at the second manual unlocking position and the third hinge assembly is located at the fourth position, the second positioning ball is partially located in the second accommodating hole, and the volume of the second positioning ball located in the second accommodating hole is less than or equal to half of the volume of the second positioning ball.

[0059] Optionally, the first boss includes a first abutting surface and a first supporting surface, and the first hinge assembly further includes a first stopping member.

[0060] The first abutment surface is used to apply a first unlocking force to the first locking block during the process of the second hinge assembly pivoting from the first position to the second position, so that the first locking block drives the first locking assembly to move toward the first unlocked position; when the second hinge assembly is in the second position, the first locking block is clamped between the first supporting surface and the first stop member;

[0061] The second boss includes a second abutting surface and a second supporting surface, and the third hinge assembly further includes a second stopping member.

[0062] The second abutment surface is used to apply a second unlocking force to the second locking block during the process of the third hinge assembly pivoting from the third position to the fourth position, so that the second locking block drives the second locking assembly to move toward the second unlocked position; when the third hinge assembly is in the fourth position, the second locking block is clamped between the second supporting surface and the first stop member.

[0063] Optionally, the first boss includes a first abutting surface and a first supporting surface, and the first hinge assembly further includes a first stopping member.

[0064] The first abutment surface is used to apply a first unlocking force to the first locking block during the process of the second hinge assembly pivoting from the first position to the second position, so that the first locking block drives the first locking assembly to move toward the first unlocked position; when the second hinge assembly is in the second position, the first locking block is clamped between the first supporting surface and the first stop member;

[0065] The third boss includes a third abutting surface and a third supporting surface, and the third hinge assembly further includes a third stopping member.

[0066] The third abutment surface is used to apply a second unlocking force to the second locking block during the process of the third hinge assembly pivoting from the third position to the fourth position, so that the second locking block drives the second locking assembly to move toward the second unlocked position; when the third hinge assembly is in the fourth position, the second locking block is clamped between the third supporting surface and the third stop member.

[0067] Optionally, the second locking assembly further comprises a second bracket and a synchronization shaft, the second bracket being pivotally connected to the third hinge assembly around the fourth axis, the synchronization shaft being connected to the second bracket, the second locking block being movably connected to the second bracket, and the second locking block being located between the fourth axis and the synchronization shaft.

[0068] The hinge device further includes a moving link and a fixed link, wherein the first end of the moving link is pivotally connected to the second bracket via the synchronization shaft, the second end of the moving link is pivotally connected to the first end of the fixed link around a fifth axis, and the second end of the fixed link is pivotally connected to the second hinge assembly around a sixth axis, and the fifth axis and the sixth axis are both parallel to the first axis.

[0069] When the third hinge assembly is located at the third position, the fixed link and the dynamic link are used together to apply a force to the second bracket to restrict the second locking block from moving toward the outside of the third hinge assembly.

[0070] Optionally, the hinge device further includes a first limiting member and a second limiting member, the first limiting member is connected to the second end of the moving link, and the second limiting member is connected to the first end of the fixed link. When the third hinge assembly is in the third position, the sixth axis and the fifth axis define a first plane, the fifth axis and the axis of the synchronization shaft define a second plane, and the angle between the first plane and the second plane is less than 180°.

[0071] Optionally, in a direction parallel to the first axis, the first hinge assembly has a first size, the second hinge assembly has a second size, and the third hinge assembly has a third size;

[0072] In a direction parallel to the first axis, a distance between any two of the centers of mass of the first hinge assembly, the second hinge assembly, and the third hinge assembly is less than half of the smallest of the first dimension, the second dimension, and the third dimension.

[0073] Optionally, the third hinge assembly includes a lifting hole plate, which is provided with a lifting hole. When the hinge device is installed to the platform container, the lifting hole faces upward when the third hinge assembly is in the third position, so as to be used for coupling the platform container.

[0074] A third aspect of the present application provides a platform container, comprising:

[0075] an underframe, the underframe including end beams;

[0076] end walls; and

[0077] As in the hinge device described above, the first hinge assembly is connected to the base frame, the third hinge assembly is connected to the end wall, and the first axis is parallel to the end beam, so that when the second hinge assembly is in the second position and the third hinge assembly is in the fourth position, the end wall is upright relative to the base frame.

[0078] Wherein, the hinge device is constructed such that:

[0079] During the pivoting of the second hinge assembly from the first position to the second position, the end wall is capable of pivoting from an outwardly turned position to the upright position, outwardly turned to the exterior of the chassis;

[0080] During the pivoting of the third hinge assembly from the third position to the fourth position, the end wall is pivotable from a folded position folded on the base frame to an erected position erected on the base frame.

[0081] According to the third aspect of the present application, the platform-type container, by applying the above-mentioned hinge device, during the flipping operation of the end wall from the folded position to the upright position and from the outward-turned position to the upright position, the first locking component or the second locking component can be automatically unlocked and locked without additional operation. When the end wall is in the upright position, the first locking component can be maintained in the first locking position without external force, and the second locking component can be maintained in the second locking position without external force, thereby making the use of the platform container more labor-saving and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] The following drawings of the embodiments of the present application are hereby incorporated as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the principles of the present application. In the drawings,

[0083] Figure 1 A partial three-dimensional view of a platform-type container in the related art;

[0084] Figure 2 is a perspective view of a platform container according to a preferred embodiment of the present application, wherein the end wall is in a folded position;

[0085] Figure 3 for Figure 2 Another perspective view of the bench-type container is shown with the end walls in the upright position;

[0086] Figure 4 for Figure 2 Still another perspective view of the rack container is shown with the end walls in an outward-turned position;

[0087] Figure 5 is a perspective view of a hinge device according to a preferred embodiment of the present application, wherein the second hinge assembly is located in the second position, and the third hinge assembly is located in the fourth position;

[0088] Figure 6 for Figure 5 Another perspective view of the hinge assembly is shown with the second hinge assembly in the second position and the third hinge assembly in the fourth position;

[0089] Figure 7 for Figure 5 A schematic diagram of the internal structure of the hinge device shown, wherein the second hinge assembly is located in the second position and the third hinge assembly is located in the fourth position;

[0090] Figure 8 for Figures 5 to 7 a perspective view of the third hinge assembly shown;

[0091] Figure 9 for Figures 5 to 7 a perspective view of the second hinge assembly shown;

[0092] Figure 10 for Figures 5 to 7 a perspective view of the first hinge assembly shown;

[0093] Figure 11 for Figure 7 a perspective view of the second locking assembly shown;

[0094] Figure 12for Figure 7 A perspective view of the first locking assembly is shown;

[0095] Figure 13 for Figure 7 A perspective view of the stopper shown;

[0096] Figure 14 for Figure 7 A perspective view of the interlock shown;

[0097] Figure 15 for Figure 7 A three-dimensional view of the connection structure of the moving connecting rod and the fixed connecting rod shown;

[0098] Figure 16 for Figure 5 A front view of the hinge assembly shown, wherein the second hinge assembly is in a second position and the third hinge assembly is in a fourth position;

[0099] Figure 17 For the Figure 16 A sectional view taken along line AA in FIG, wherein the second hinge assembly is in the second position, the third hinge assembly is in the third position, and the first locking assembly is in the first locking position;

[0100] Figure 18 For the Figure 16 Another cross-sectional view taken along line AA in FIG, wherein the second hinge assembly is in the second position, the third hinge assembly is in a position between the third position and the fourth position, and the first locking assembly is in the first locked position;

[0101] Figure 19 For the Figure 16 Another cross-sectional view taken along line AA in FIG, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first locking position, and the second locking assembly is in the second locking position;

[0102] Figure 20 For the Figure 16 Another cross-sectional view taken along line AA in FIG, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first locking position, the second locking assembly is in the second unlocking position, and the limiter is in the avoidance position;

[0103] Figure 21 For the Figure 16 Another cross-sectional view taken along line AA in FIG, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first locking position, the second locking assembly is in the second unlocking position, and the limiter is in the stop position;

[0104] Figure 22 For the Figure 16 Another cross-sectional view taken along line AA in FIG, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first unlocked position and abuts the interlocking lever, the second locking assembly is about to move from the second unlocked position to the second locked position, and the limiter is in the avoidance position;

[0105] Figure 23 For the Figure 16 Another cross-sectional view taken along line AA in FIG, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first unlocked position and abuts the interlocking lever, the second locking assembly is in the second locked position, and the limiter is in the avoidance position;

[0106] Figure 24 For the Figure 16 Another cross-sectional view taken along line AA in FIG, wherein the second hinge assembly is in a position between the second position and the first position, the third hinge assembly is in a fourth position, the first locking assembly is in a position between the first unlocked position and the first locked position, and the second locking assembly is in the second locked position;

[0107] Figure 25 For the Figure 16 Another cross-sectional view taken along line AA in FIG, wherein the second hinge assembly is in the first position, the third hinge assembly is in the fourth position, the first locking assembly is in the first locking position, and the second locking assembly is in the second locking position;

[0108] Figure 26 is a perspective view of a hinge device according to another preferred embodiment of the present application, wherein the second hinge assembly is located in the second position, and the third hinge assembly is located in the fourth position;

[0109] Figure 27 for Figure 26 Another perspective view of the hinge assembly is shown with the second hinge assembly in the second position and the third hinge assembly in the fourth position;

[0110] Figure 28 for Figure 26 A schematic diagram of the internal structure of the hinge device shown, wherein the second hinge assembly is located in the second position and the third hinge assembly is located in the fourth position;

[0111] Figure 29 for Figures 26 to 28 a perspective view of the third hinge assembly shown;

[0112] Figure 30 for Figures 26 to 28 a perspective view of the second hinge assembly shown;

[0113] Figure 31 for Figures 26 to 28 a perspective view of the first hinge assembly shown;

[0114] Figure 32 for Figure 28 an exploded perspective view of the second locking assembly shown;

[0115] Figure 33 for Figure 28 An exploded perspective view of the first locking assembly is shown;

[0116] Figure 34 for Figures 26 to 28 a cross-sectional view of the hinge assembly shown, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first locked position, and the second locking assembly is in the second locked position;

[0117] Figure 35 For the Figure 34 A partial cross-sectional view taken along line BB in FIG.

[0118] Figure 36 for Figures 26 to 28 Another cross-sectional view of the hinge assembly is shown, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first locked position, the second locking assembly is in the second manually unlocked position, and the second positioning ball is located in the second receiving hole;

[0119] Figure 37 For the Figure 36 A partial cross-sectional view taken along line CC in FIG.

[0120] Figure 38 for Figures 26 to 28 Still another cross-sectional view of the hinge assembly is shown, wherein the second hinge assembly is in the second position, the third hinge assembly is in a position between the fourth position and the third position, the first locking assembly is in the first locked position, the second locking assembly is substantially in the second unlocked position, and the second positioning ball is disengaged from the second receiving hole;

[0121] Figure 39 for Figures 26 to 28 Still another cross-sectional view of the hinge assembly shown, wherein the second hinge assembly is in the second position, the third hinge assembly is in the third position, the first locking assembly is in the first locked position, and the second locking assembly is in the second locked position;

[0122] Figure 40 for Figures 26 to 28Another cross-sectional view of the hinge assembly is shown, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first locked position, the second locking assembly is substantially in the second unlocked position, and the second positioning ball is offset from the second receiving hole;

[0123] Figure 41 for Figures 26 to 28 Still another cross-sectional view of the hinge assembly is shown, wherein the second hinge assembly is in the second position, the third hinge assembly is in the fourth position, the first locking assembly is in the first manually unlocked position, the second locking assembly is in the second locked position, and the first positioning assembly is aligned with the second receiving aperture;

[0124] Figure 42 for Figures 26 to 28 yet another cross-sectional view of the hinge assembly shown, wherein the second hinge assembly is positioned somewhere between the second position and the first position, the third hinge assembly is positioned in a fourth position, the first locking assembly is substantially positioned in the first unlocked position, the second locking assembly is positioned in the second locked position, and the first positioning assembly is disengaged from the second receiving aperture; and

[0125] Figure 43 for Figures 26 to 28 Another cross-sectional view of the hinge assembly is shown, wherein the second hinge assembly is located in the first position, the third hinge assembly is located in the fourth position, the first locking assembly is located in the first locking position, and the second locking assembly is located in the second locking position.

[0126] Description of reference numerals:

[0127] 10: Hinge device 11: Slide hammer

[0128] 12: Moving pin 30: Base frame

[0129] 50: End wall 100, 200: Hinge device

[0130] 110, 210: First hinge assembly 110a, 210a: First notch

[0131] 111, 211: First stop member 112, 212: First wall panel

[0132] 113: Bottom plate 114: Lower limit block

[0133] 115: bottom corner piece 120, 220: second hinge assembly

[0134] 121, 221: first bosses 121a, 221a: first abutting surfaces

[0135] 121b, 221b: first supporting surface 122: second boss

[0136] 122a: Second abutting surface 122b: Second supporting surface

[0137] 123: Upper wing plate 124: Lower wing plate

[0138] 125: Outer wing plate 125b: Second limit block

[0139] 126: inner wing plate 126b: first limit block

[0140] 127: Web 130, 230: Third hinge assembly

[0141] 130a: second notch 131: second stopping member

[0142] 132: Corner column base plate 133: Third wall plate

[0143] 134: Upper limit block 135: Lifting hole plate

[0144] 140, 240: Second locking assembly 141, 241: Second locking block

[0145] 141a: Trunnion 142, 242: Second bracket

[0146] 142a: Second bracket plate 142a1: Second locking shaft hole

[0147] 142a2: Drive shaft hole 142a3: Trunnion hole

[0148] 142b: Synchronous shaft 142c: Second counterweight

[0149] 144: Dynamic link 144a: First limiting member

[0150] 145: Fixed link 145a: Second limiting member

[0151] 148, 248: Second operating part 149: Transmission shaft

[0152] 150, 250: First locking assembly 151, 251: First locking block

[0153] 152, 252: First bracket 152a: First bracket plate

[0154] 152b: First panel 152c: First counterweight

[0155] 153, 254: First operating part 160: Limiter

[0156] 161: Limit lever 162: Limit operation part

[0157] 163: Limiting turntable 163a: Limiting shaft hole

[0158] 163b: First connecting hole 170: Interlock

[0159] 171: interlocking turntable 171a: interlocking shaft hole

[0160] 171b: Second connecting hole 172: Synchronous connecting rod

[0161] 176: Chain stop bar 214: First connecting angle piece

[0162] 215: bottom corner piece 220a: third notch

[0163] 220b: First receiving hole 222: Third stopping member

[0164] 223: Second wall panel 224: Second corner piece

[0165] 230a: Second receiving hole 231: Third boss

[0166] 231a: third abutting surface 231b: third supporting surface

[0167] 239: Stacking block 280: First positioning component

[0168] 290: Second positioning component 291: Second positioning ball

[0169] 292: Second elastic member 293: Second plunger

[0170] 300: Base frame 500: End wall

[0171] AX1: First axis AX2: Second axis

[0172] AX3: third axis AX4: fourth axis

[0173] AX5: fifth axis AX6: sixth axis

[0174] AX7: Seventh axis AX8: Eighth axis

[0175] AX9: Ninth axis AX10: Tenth axis

[0176] D1: First direction D2: Second direction

[0177] D3: Third direction DETAILED DESCRIPTION

[0178] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application embodiments can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described to avoid confusion with the present application embodiments.

[0179] In order to fully understand the embodiments of the present application, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art.

[0180] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present application. The singular forms "a", "an" and "said / the" are also intended to include the plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right" and similar expressions used in this application are for illustrative purposes only and are not limiting.

[0181] Ordinal numbers such as “first” and “second” cited in this application are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term “first component” itself does not imply the existence of a “second component”, and the term “second component” itself does not imply the existence of a “first component”.

[0182] Hereinafter, specific embodiments of the present application will be described in more detail with reference to the accompanying drawings. These drawings illustrate representative embodiments of the present application and do not limit the present application.

[0183] First embodiment

[0184] See Figures 2 to 4The present application provides a hinge device 100. The hinge device 100 is used to pivotally connect the end wall 500 of a platform container to the base frame 300. The hinge device 100 has a first end and a second end opposite along a first direction D1, a first side and a second side opposite along a second direction D2, and a bottom end and a top end opposite along a third direction D3. The first direction D1 is perpendicular to the second direction D2. The third direction D3 is perpendicular to the first direction D1 and the second direction D2. When the hinge device 100 is installed in the platform container, the first direction D1 is parallel to the length direction of the platform container, and the first end is closer to the middle of the base frame 300 in the length direction than the second end. The second direction D2 is parallel to the width direction of the platform container, and the first side is closer to the middle of the base frame 300 in the width direction than the second side. The third direction D3 is parallel to the height direction of the platform container, and the top end is located above the bottom end.

[0185] like Figures 5 to 25 As shown, the hinge device 100 according to the present application includes a first hinge assembly 110 , a second hinge assembly 120 , a third hinge assembly 130 , a first locking assembly 150 and a second locking assembly 140 .

[0186] The first hinge assembly 110 is used to connect to the bottom frame 300 of the platform container.

[0187] The second hinge assembly 120 is pivotally connected to the first hinge assembly 110 about a first axis AX1 between a first position and a second position. That is, the second hinge assembly 120 is pivotally connected to the first hinge assembly 110 about the first axis AX1 and can pivot relative to the first hinge assembly 110 between the first position and the second position. The first axis AX1 is parallel to the second direction D2.

[0188] The third hinge assembly 130 is configured to be connected to the end wall 500 of the platform container. The third hinge assembly 130 is pivotally connected to the second hinge assembly 120 about a second axis AX2 between a third position and a fourth position. In other words, the third hinge assembly 130 is pivotally connected to the second hinge assembly 120 about the second axis AX2 and is capable of pivoting relative to the second hinge assembly 120 between a third position and a fourth position. The second axis AX2 is parallel to the first axis AX1. The pivot direction of the third hinge assembly 130 from the third position to the fourth position is opposite to the pivot direction of the second hinge assembly 120 from the first position to the second position.

[0189] The first locking assembly 150 is movably connected to the first hinge assembly 110 between a first locked position, in which it locks the second hinge assembly 120, and a first unlocked position, in which it releases the second hinge assembly 120. In other words, the first locking assembly 150 is movably connected to the first hinge assembly 110 and is movable between a first locked position and a first unlocked position relative to the first hinge assembly 110. When the first locking assembly 150 is in the first locked position, it is capable of locking the second hinge assembly 120 to restrict the second hinge assembly 120 from pivoting relative to the first hinge assembly 110. When the first locking assembly 150 is in the first unlocked position, it is capable of releasing the second hinge assembly 120, thereby allowing the second hinge assembly 120 to pivot relative to the first hinge assembly 110.

[0190] The second locking assembly 140 may be movably coupled to the third hinge assembly 130 between a second locked position, which locks the third hinge assembly 130, and a second unlocked position, which releases the third hinge assembly 130. Specifically, the second locking assembly 140 is movably coupled to the third hinge assembly 130 and is movable between a second locked position and a second unlocked position relative to the third hinge assembly 130. When the second locking assembly 140 is in the second locked position, the third hinge assembly 130 is locked to the second hinge assembly 120, restricting the third hinge assembly 130 from pivoting relative to the second hinge assembly 120. When the second locking assembly 140 is in the second unlocked position, the third hinge assembly 130 is released, allowing the third hinge assembly 130 to pivot relative to the second hinge assembly 120.

[0191] The hinge device 100 is configured such that:

[0192] During the pivoting of the second hinge assembly 120 from the first position to the second position, the second hinge assembly 120 is configured to apply a first unlocking force to the first locking assembly 150, causing the first locking assembly 150 to disengage from the first locked position. When the second hinge assembly 120 is in the second position, the first locking assembly 150 is in the first locked position, clamped between the first hinge assembly 110 and the second hinge assembly 120, preventing the second hinge assembly 120 from pivoting relative to the first hinge assembly 110. During the pivoting of the third hinge assembly 130 between the third and fourth positions, the first locking assembly 150 remains in the first locked position and can remain in the first locked position without external force. For example, during the pivoting of the second hinge assembly 120 from the first position to the second position, the second hinge assembly 120 abuts against the first locking assembly 150, causing the first locking assembly 150 to move toward the first unlocked position. When the second hinge assembly 120 reaches the second position, the first locking block 151 returns to the first locked position under the action of an automatic restoring force. When the second hinge assembly 120 is located at the second position, the first locking assembly 150 can always remain in the first locking position in the absence of external force.

[0193] During the pivoting of the third hinge assembly 130 from the third position to the fourth position, the third hinge assembly 130 or the second hinge assembly 120 is configured to apply a second unlocking force to the second locking assembly 140, causing the second locking assembly 140 to disengage from the second locked position. When the third hinge assembly 130 is in the fourth position, the second locking assembly 140 is in the second locked position, being retained between the third hinge assembly 130 and the second hinge assembly 120, preventing the third hinge assembly 130 from pivoting relative to the second hinge assembly 120. During the pivoting of the second hinge assembly 120 between the first position and the second position, the second locking assembly 140 remains in the second locked position and can remain in the second locked position without external force. For example, during the pivoting of the third hinge assembly 130 from the third position to the fourth position, the third hinge assembly 130 abuts against the second locking assembly 140, causing the second locking assembly 140 to move toward the second unlocked position. When the third hinge assembly 130 moves to the fourth position, the second locking assembly 140 returns to the second locking position under the action of the automatic restoring force. When the third hinge assembly 130 is in the fourth position, the second locking assembly 140 can always remain in the second locking position without external force.

[0194] When the hinge device 100 is installed to the platform container, the first axis AX1 is parallel to the end beam of the platform container, so that when the second hinge assembly 120 is in the second position and the third hinge assembly 130 is in the fourth position, the end wall 500 is upright relative to the base frame 300.

[0195] According to the hinge device 100 of the present application, the first locking assembly 150 is configured to be maintained in the first locking position when the second hinge assembly 120 is in the second position, and the first locking assembly 150 is disengaged from the first locking position during the process of the second hinge assembly 120 pivoting toward the second position, thereby allowing the second hinge assembly 120 to reach the second position. The second locking assembly 140 is configured to be maintained in the second locking position when the third hinge assembly 130 is in the fourth position, and the second locking assembly 140 is disengaged from the second locking position during the process of the third hinge assembly 130 pivoting toward the fourth position, thereby allowing the third hinge assembly 130 to reach the fourth position. When the hinge device 100 of the present application is applied to a platform-type container, it can facilitate the pivoting of the end wall 500 of the platform-type container in two opposite directions. Simultaneously, as the end wall 500 moves toward a position erected on the base frame 300, the first locking assembly 150 can be moved to a first unlocked position and then a first locked position, and the second locking assembly 140 can be moved to a second unlocked position and a second locked position, without additional manual operation. Furthermore, the first locking assembly 150 can be maintained in the first locked position when the end wall 500 is positioned upright on the base frame 300, and the second locking assembly 140 can be maintained in the second locked position when the end wall 500 is positioned upright on the base frame 300. When the hinge device 100 of the present application is applied to a platform-type container, the flipping operation of the end wall 500 can be made more convenient and labor-saving, thereby improving operational efficiency and reducing labor intensity. The present application is directed to a three-section hinge device in which the second hinge assembly 120 is disposed between the first hinge assembly 110 and the second hinge assembly 120 in the height direction. When the end wall 500 is turned outward to serve as a loading ramp, it is connected to the first hinge assembly 110 via the second hinge assembly 120. The slope formed by the outward-turned end wall 500 and the loading surface of the base frame 300 are less likely to create a height difference, making loading more convenient. When the end wall 500 is folded inward, it is flipped onto the base frame 300 via the third hinge assembly. The second axis AX2 is slightly higher than the first axis AX1. After folding, the base frame 300 can be placed at a higher height, thereby reducing the weight of the base frame 300 while maintaining a certain strength and lowering costs.

[0196] See Figures 5 to 7 、 Figure 11 and Figure 12 ,as well as Figures 16 to 25In addition, the hinge device 100 may further include a first operating portion 153 and a second operating portion 148. The first operating portion 153 is connected to the first locking assembly 150. When a first operating force is applied to the first operating portion 153, the first operating portion 153 is configured to move the first locking assembly 150, thereby deviating from the first locked position. Deviating here can also be understood as disengaging. That is, when operated by a user, the first operating portion 153 can move the first locking assembly 150 out of the first locked position, thereby unlocking the first locking assembly 150. This is used to manually unlock the first locking assembly 150. The unlocked position of the first locking assembly 150 in the unlocked state can be the first unlocked position or another position. The unlocked state here can be understood as allowing the second hinge assembly 120 to pivot relative to the first hinge assembly 110. The second operating portion 148 is connected to the second locking assembly 140. When a second operating force is applied to the second operating portion 148, the second operating portion 148 is configured to move the second locking assembly 140, thereby deviating from the second locked position. That is, when operated by a user, the second operating portion 148 can disengage the second locking assembly 140 from the second locked position, thereby unlocking the second locking assembly 140. This is used to manually unlock the second locking assembly 140. The unlocked position of the second locking assembly 140 can be the first unlocked position or another position. The unlocked state here can be understood as allowing the third hinge assembly 130 to pivot relative to the second hinge assembly 120.

[0197] The hinge device 100 can be configured such that after the first operating force on the first operating portion 153 is released, the first locking assembly 150 returns to the first locked position under the action of an automatic restoring force. Thus, the first locking assembly 150 can remain in the first locked position when no external force is applied. After the second operating force on the second operating portion 148 is released, the second locking assembly 140 returns to the second locked position under the action of an automatic restoring force. Thus, the second locking assembly 140 can remain in the second locked position when no external force is applied.

[0198] Continue reading Figures 5 to 7 、 Figure 11 and Figure 12 ,as well as Figures 16 to 25 For example, the first locking assembly 150 may include a first locking block 151. When the second hinge assembly 120 is in the second position, the first locking block 151 is engaged between the second hinge assembly 120 and the first hinge assembly 110 to restrict movement of the second hinge assembly 120 toward the first position. The second locking assembly 140 may include a second locking block 141. When the third hinge assembly 130 is in the fourth position, the second locking block 141 is engaged between the second hinge assembly 120 and the third hinge assembly 130 to restrict movement of the third hinge assembly 130 toward the third position.

[0199] See also Figures 5 to 7 、 Figure 11 and Figure 12 ,as well as Figures 16 to 25 Furthermore, when the second hinge assembly 120 is in the second position, a first slot is formed between the second hinge assembly 120 and the first hinge assembly 110. At this point, the first locking block 151 engages with the first slot, thereby preventing the second hinge assembly 120 from moving toward the first position. When the third hinge assembly 130 is in the fourth position, a second slot is formed between the second hinge assembly 120 and the third hinge assembly 130. At this point, the second locking block 141 engages with the second slot, thereby preventing the third hinge assembly 130 from moving toward the third position.

[0200] See Figures 5 to 25 For example, the first locking assembly 150 is pivotally connected to the first hinge assembly 110 about a third axis AX3 parallel to the first axis AX1, between a first locked position and a first unlocked position. That is, the first locking assembly 150 is pivotally connected to the first hinge assembly 110 about the third axis AX3 and is capable of pivoting between the first locked position and the first unlocked position. The second locking assembly 140 is pivotally connected to the third hinge assembly 130 about a fourth axis AX4 parallel to the first axis AX1, between a second locked position and a second unlocked position. That is, the second locking assembly 140 is pivotally connected to the third hinge assembly 130 about the fourth axis AX4 and is capable of pivoting between the second locked position and the second unlocked position. The second hinge assembly 120 may include a first boss 121 and a second boss 122. When the second hinge assembly 120 is in the second position, the first boss 121 and the second boss 122 are located on opposite sides of the second hinge assembly 120 along a first direction D1. The first direction D1 is perpendicular to the first axis AX1. The first axis AX1 is parallel to the second direction D2. When the second hinge assembly 120 is in the second position, the first locking block 151 is clamped between the first boss 121 and the first hinge assembly 110. When the third hinge assembly 130 is in the fourth position, the second locking block 141 is clamped between the second boss 122 and the third hinge assembly 130.

[0201] Continue reading Figures 5 to 25Furthermore, the first boss 121 may include a first abutting surface 121a and a first supporting surface 121b. The first hinge assembly 110 may also include a first stop member 111. The first abutting surface 121a is configured to apply a first unlocking force to the first locking block 151 during the pivoting of the second hinge assembly 120 from the first position to the second position, causing the first locking block 151 to drive the first locking assembly 150 toward the first unlocked position. In other words, when the second hinge assembly 120 is in the second position, the distance from the first abutting surface 121a to the top end along the third direction D3 gradually decreases along the first direction D1 toward the first end of the hinge device 100. During the pivoting of the second hinge assembly 120 from the first position to the second position, the first abutting surface 121a pushes against the first locking block 151, causing the first locking block 151 to drive the first locking assembly 150 toward the first unlocked position. When the second hinge assembly 120 is located at the second position, the first locking block 151 is clamped between the first supporting surface 121b and the first stopping member 111. At this time, a first clamping groove is formed between the first supporting surface 121b and the first stopping member 111.

[0202] The second boss 122 may include a second abutting surface 122a and a second supporting surface 122b. The third hinge assembly 130 may also include a second stop member 131. The second abutting surface 122a is configured to apply a second unlocking force to the second locking block 141 during pivoting of the third hinge assembly 130 from the third position to the fourth position, causing the second locking block 141 to drive the second locking assembly 140 toward the second unlocked position. In other words, when the second hinge assembly 120 is in the second position, the distance from the second abutting surface 122a to the top end along the third direction D3 gradually increases in the first direction D1 toward the first end. During pivoting of the third hinge assembly 130 from the third position to the fourth position, the second abutting surface 122a pushes against the second locking block 141, causing the second locking block 141 to drive the second locking assembly 140 toward the second unlocked position. When the third hinge assembly 130 is in the fourth position, the second locking block 141 is retained between the second supporting surface 122b and the first stop member 111. At this time, a second locking groove is formed between the second supporting surface 122 b and the first stopping member 111 .

[0203] See also Figures 5 to 25Furthermore, the first hinge assembly 110 may include a first notch 110a located near the first end. A first stop member 111 is located in the first notch 110a and is positioned near the top end along the third direction D3. The first stop member 111 has a first stop surface. When the second hinge assembly 120 is in the second position, a first engagement groove is formed between the first stop surface and the first support surface 121b. The first locking block 151 in the first unlocked position is further away from the second end than the first locking block 151 in the first locked position. When the second hinge assembly 120 is in the second position, the distance between the first support surface 121b and the first stop surface along the third direction D3 increases in the first direction D1 toward the first end. For example, the distance from the first stop surface to the top end along the third direction D3 gradually decreases in the first direction D1 toward the first end. That is, the first stop surface is inclined upward in the first direction D1 toward the first end. The third hinge assembly 130 may include a second notch 130a located near the second end. The second stop member 131 is located in the second notch 130a and is positioned away from the top end along the third direction D3. The second stop member 131 has a second stop surface. When the third hinge assembly 130 is in the fourth position, a second slot is formed between the second support surface 122b and the second stop surface. The second locking block 141 is further away from the first end when in the second unlocked position than when in the second locked position. The second locking block 141 in the second unlocked position is further away from the first end than when in the second locked position. When the second hinge assembly 120 is in the second position and the third hinge assembly 130 is in the fourth position, the distance between the second support surface 122b and the second stop surface along the third direction D3 increases in the first direction D1 away from the first end. For example, when the second hinge assembly 120 is in the second position and the third hinge assembly 130 is in the fourth position, the distance from the second stop surface to the top end along the third direction D3 increases in the first direction D1 away from the first end. That is, the second stop surface is inclined downward in the first direction D1 away from the first end.

[0204] See Figures 5 to 7 、 Figure 13 as well as Figures 16 to 25In addition, the hinge device 100 may further include a limiter 160. The limiter 160 is pivotally connected to the second hinge assembly 120 about a seventh axis AX7 parallel to the first axis AX1 between a stop position and a relief position. The limiter 160 in the stop position is used to apply a force to the second locking assembly 140 in the second unlocked position, so that the second locking assembly 140 remains in the second unlocked position. The limiter 160 in the relief position is disengaged from the second locking assembly 140, that is, the limiter 160 is now outside the rotation range of the second locking assembly 140, thereby releasing the restriction on the pivoting of the second locking assembly 140 and allowing the second locking assembly 140 to pivot toward the second locked position under the action of the automatic restoring force. The limiter 160 may include a limit operating portion 162. The limit operating portion 162 is used to be operated to cause the limiter 160 to pivot between the stop position and the relief position. The user can operate the limiter 160 by operating the limiter operating portion 162 so that the limiter 160 pivots about the seventh axis AX7.

[0205] See Figures 5 to 7 、 Figure 13 and Figure 14 ,as well as Figures 16 to 25 In addition, the hinge device 100 may further include a chain 170 and a synchronization link 172. The chain 170 is pivotally connected to the second hinge assembly 120 about an eighth axis AX8 parallel to the first axis AX1. The chain 170 is pivotally connected to one end of the synchronization link 172 about a ninth axis AX9 parallel to the eighth axis AX8. The other end of the synchronization link 172 is pivotally connected to the stopper 160 about a tenth axis AX10 parallel to the ninth axis AX9. The chain 170 has a chain stopper 176.

[0206] When the limiter 160 is in the stop position, the interlocking lever 176 abuts the first locking assembly 150 in the first locked position. As the first locking assembly 150 moves from the first locked position to the first unlocked position, the first locking assembly 150 pushes against the interlocking lever 176, driving the limiter 160 to pivot toward the escape position via the interlock 170. This allows the second locking assembly 140 to escape the restraint of the limiter 160 and move toward the second locked position under the action of the automatic return force. This is used to simultaneously unlock the first locking assembly 150 while ensuring that the second locking assembly 140 returns to or remains in the second locked position. When the external force applied to the first locking assembly 150 is removed or released, the first locking assembly 150 can return to the first locked position under the action of the automatic return force. When the first locking assembly 150 is in the first locked position, the first locking assembly 150 remains in the first locked position under the action of the automatic return force when the external force applied to the second locking assembly 140 causes the second locking assembly 140 to move toward the second unlocked position.

[0207] See Figure 7 、 Figure 12 as well as Figures 16 to 25 In addition, the first locking assembly 150 may further include a first bracket 152 and a first counterweight 152c. The first bracket 152 is pivotally connected to the first hinge assembly 110 around the third axis AX3. The first bracket 152 is connected to the first locking block 151. The first counterweight 152c is connected to the first bracket 152. The first counterweight 152c and the first locking block 151 are respectively located on both sides of the third axis AX3. The first counterweight 152c is used to apply an automatic restoring force to the first locking assembly 150 during the process of the first hinge assembly 110 pivoting from the first position to the second position, so that the first locking assembly 150 pivots toward the first locking position. When the second hinge assembly 120 moves to the second position, the first locking block 151 returns to the first locking position with the first locking assembly 150 under the action of the automatic restoring force. Here, by adding a first counterweight 152c to the first bracket 152, the center of gravity of the first locking assembly 150 is located on the side of the third axis AX3 where the first counterweight 152c is set. When no external force is applied, the first locking assembly 150 automatically resets under the action of its own gravity.

[0208] In other embodiments of the present application, the first counterweight 152c may be replaced by other elastic members to apply an elastic automatic restoring force to the first locking assembly 150, thereby moving the first locking assembly 150 toward the first locking position.

[0209] See Figure 7 、 Figure 11 and Figure 15 ,as well as Figures 16 to 25In addition, the second locking assembly 140 may further include a second bracket 142 and a synchronization shaft 142b. The second bracket 142 is pivotally connected to the third hinge assembly 130 around the fourth axis AX4. The synchronization shaft 142b is connected to the second bracket 142. The second locking block 141 is movably connected to the second bracket 142. And the second locking block 141 is located between the fourth axis AX4 and the synchronization shaft 142b. The hinge device 100 may further include a dynamic link 144 and a fixed link 145. The first end of the dynamic link 144 is pivotally connected to the second bracket 142 via the synchronization shaft 142b. The second end of the dynamic link 144 is pivotally connected to the first end of the fixed link 145 around a fifth axis AX5 parallel to the second direction D2. The second end of the fixed link 145 is pivotally connected to the second hinge assembly 120 around a sixth axis AX6 parallel to the second direction D2. When the third hinge assembly 130 is in the third position, the fixed link 145 and the movable link 144 jointly apply a force to the second bracket 142 to restrict the second locking block 141 from moving outward from the third hinge assembly 130. When the hinge device 100 is installed in a platform container, when the third hinge assembly 130 is in the third position, the end wall 500 is in the folded position. The force applied by the movable link 144 and the fixed link 145 to the second locking assembly 140 prevents the second locking block 141 from protruding beyond the third hinge assembly 130, thereby reducing interference between the folded platform containers during stacking and facilitating the stacking and connection of the folded platform containers.

[0210] See Figure 7 、 Figure 15 as well as Figures 16 to 25 In addition, the hinge device 100 may further include a first limiting member 144a and a second limiting member 145a. The first limiting member 144a is connected to the second end of the dynamic link 144. The second limiting member 145a is connected to the first end of the fixed link 145. When the third hinge assembly 130 is in the third position, the sixth axis AX6 and the fifth axis AX5 define a first plane, the fifth axis AX5 and the axis of the synchronization shaft 142b define a second plane, and the angle between the first plane and the second plane is less than 180° (e.g., Figure 17 (as shown), and the angle here points away from the second locking block 141. This is to ensure that the dynamic link 144 and the fixed link 145 can perform their functions over a longer period of use. That is, whenever the third hinge assembly 130 is in the third position, the force exerted by the dynamic link 144 and the fixed link 145 on the second locking assembly 140 can reliably prevent the second locking block 141 from protruding from the third hinge assembly 130.

[0211] See Figure 7 、 Figure 11 as well as Figures 16 to 25Furthermore, the second locking assembly 140 may further include a second bracket 142 and a second counterweight 142c. The second bracket 142 is pivotally mounted about a fourth axis AX4. The second locking block 141 is movably connected to the second bracket 142. The second counterweight 142c is connected to the second bracket 142. The second counterweight 142c and the second locking block 141 are respectively located on either side of the fourth axis AX4. The second counterweight 142c is configured to provide an automatic restoring force to the second locking assembly 140 during pivoting of the third hinge assembly 130 from the third position to the fourth position, thereby causing the second locking assembly 140 to pivot toward the second locked position. When the third hinge assembly 130 moves to the fourth position, the second locking block 141 returns to the second locked position with the second locking assembly 140 under the action of the automatic restoring force. The position of the second locking block 141 when the second locking assembly 140 is in the second unlocked position is further from the interior of the third hinge assembly 130 than when the second locking assembly 140 is in the second locked position. Here, the center of gravity of the second locking assembly 140 is adjusted by adding a second counterweight 142 c , so that the second locking assembly 140 automatically returns to the second locking position due to its own gravity.

[0212] In other embodiments of the present application, an elastic member can be selected to replace the second counterweight member 142c, and the elastic member is connected to the second locking assembly 140 and the third hinge assembly 130, so as to apply an elastic force to the second locking assembly 140, so that the second locking assembly 140 automatically resets to the second locking position when not affected by external force.

[0213] In a direction parallel to the first axis AX1, the first hinge assembly 110 has a first dimension, the second hinge assembly 120 has a second dimension, and the third hinge assembly 130 has a third dimension. In a direction parallel to the first axis AX1, the distance between any two of the centers of mass of the first hinge assembly 110, the second hinge assembly 120, and the third hinge assembly 130 is less than half the smallest of the first, second, and third dimensions. This is to make the assembly structure of the hinge assembly 100 in a direction parallel to the first axis AX1 more compact within an allowable tolerance, thereby helping to reduce the dimension of the hinge assembly 100 in the second direction D2.

[0214] Refer to the following Figures 5 to 25 The illustrated example further illustrates the hinge device 100 of this embodiment.

[0215] like Figures 5 to 7As shown, the hinge device 100 may include a third hinge assembly 130, a first hinge assembly 110, a second hinge assembly 120, a second locking assembly 140, a first locking assembly 150, a stopper 160, a chain 170, an upper link assembly, and a synchronization link 172. The third hinge assembly 130 is hinged to the upper portion of the second hinge assembly 120, and the lower portion of the second hinge assembly 120 is hinged to the first hinge assembly 110.

[0216] like Figure 8 As shown, the third hinge assembly 130 may include a third wall panel 133, a corner post base plate 132, a sealing plate, a lifting hole plate 135, and an upper limit block 134. The third hinge assembly 130 is generally constructed as an open box. The corner post base plate 132 is fixedly connected to the bottom of the corner post of the end wall 500. A pair of coaxial bearings and a pair of coaxial bracket shaft holes are respectively provided on the two third wall panels 133. The third wall panel 133 is composed of two layers of steel plates. The inner layer has a notch between the sealing plate and the lifting hole plate to form a second notch 130a. The outer layer of steel plate closes the outside of the notch, and a second stop member 131 is provided at the bottom of the notch, thereby forming a slide groove at the notch between the third wall panel 133, the second stop member 131, and the outer layer of steel plate. The lifting hole plate 135 has a standard lifting hole. When the end wall is in the folded position, this lifting hole faces upward and is used for container coupling. The upper limit block 134 can strengthen the edge of the third wall panel 133 and is provided with a "U" shaped opening (such as Figure 16 as shown) to avoid the second hinge assembly 120.

[0217] like Figure 9 As shown, the second hinge assembly 120 may include an upper wing plate 123, an outer wing plate 125, a first stopper 126b, a first hinge bearing, a lower wing plate 124, an inner wing plate 126, a second stopper 125b, a third hinge bearing, and a web 127. The second hinge assembly 120 may be welded together. The web 127 is recessed to form a groove and is provided with an axial hole for mounting the stopper 160 and an axial hole for mounting the interlock 170. When the first stopper 126b and the second stopper 125b contact the upper stopper 134 and the lower stopper 114, respectively, they limit the relative rotation angle of the second hinge assembly 120 and the third hinge assembly 130, allowing the end wall 500 to remain upright under its own weight when unlocked. The inner wing plate 126 and the outer wing plate 125 are respectively provided with a boss and an inclined surface. The second stopping member 131 and the first stopping member 111 form a slot with the corresponding boss, and the rotation of the corresponding hinge can be locked after the locking block is inserted.

[0218] like Figure 10As shown, the first hinge assembly 110 may include a bottom corner piece 115, a bottom plate 113, a first wall panel 112 and a lower limit block 114. The first hinge assembly 110 is generally constructed as a box that opens front and back. A pair of coaxial bearings and a pair of coaxial bracket shaft holes are respectively provided on the two first wall panels 112. A first stop member 111 is connected to the lower part of the lower limit block 114. The lower limit block 114 can strengthen the edge of the first wall panel 112 and is provided with a "U"-shaped opening to avoid the second hinge assembly 120. One side of the bottom plate 113 of the first hinge assembly 110 is connected to the end of the bottom side beam of the base frame 300, and the side of the bottom corner piece 115 without a side hole is connected to the end beam end of the base frame 300.

[0219] like Figure 11 As shown, the second locking assembly 140 is divided into two parts: a second locking block 141 and a second bracket 142. The second locking block 141 is provided with a pair of ear shafts 141a. The ear shafts 141a are located within ear shaft holes 142a3 of the second bracket plate 142a and are able to freely rotate or translate relative to the second bracket plate 142a. The ear shaft holes 142a3 can be configured as bar-shaped holes, such as oblong holes. The second locking block 141 is assembled into the slide groove of the third hinge assembly 130 and can freely move and rotate within a limited range. The second bracket 142 includes a pair of second bracket plates 142a, a counterweight 152c, and a synchronization shaft 142b. The synchronization shaft 142b connects the upper portions of the two second bracket plates 142a, maintaining their upper ends coaxially. The axial hole of the second bracket plate 142a near the first side of the hinge device 100 serves as the transmission shaft hole 142a2, which can be configured as a bar-shaped hole or a square hole. The shaft hole of the other second bracket plate 142a serves as the second locking shaft hole 142a1, which can be constructed as a round hole. The second locking shaft hole 142a1 and the transmission shaft hole 142a2 are coaxial and hinged to the bracket shaft hole position of the third hinge assembly 130. The transmission shaft 149 with a square head at the shaft end passes through the third wall plate 133 and is respectively connected to the strip hole of the second bracket plate 142a and the foot pedal (such as the second operating part 148). Figure 5 ), rotating the pedal can drive the second bracket 142 to rotate.

[0220] like Figure 12As shown, the first locking assembly 150 is divided into two parts: a first locking block 151 and a first bracket 152. The first locking block 151 is equipped with an anti-drop bolt, forming a boss. The first bracket 152 comprises two first bracket plates 152a, a first panel 152b, and a first connecting portion. The lower portion of the first bracket plate 152a extends a support surface that contacts the bottom corner piece 115 of the first hinge assembly 110 to form a support. The upper portion of the first bracket plate 152a is provided with a limiting surface to limit the outward tilting angle of the first bracket 152. The first bracket plate 152a also has a slot that accommodates the first locking block 151, allowing it to move and rotate freely within a limited range. Below the slot is a bracket shaft hole that is hinged to the shaft hole of the first bracket 152 of the first hinge assembly 110. A footrest extends horizontally rearward from the first bracket plate 152a, serving as the first operating portion 153. The first connecting portion connects the two first bracket plates 152a at the footrest position. The first panel 152 b is provided with an anti-dropping slot, and the boss of the first locking block 151 is embedded in the slot to prevent the first locking block 151 from being separated from the first bracket 152 .

[0221] like Figure 13 As shown, the limiter 160 may include a limit rotary disc 163, a limit operating portion 162, and a limit stop rod 161. The limit operating portion 162 and the limit stop rod 161 are connected to the limit rotary disc 163 and axially fixed to prevent them from falling out. The limit rotary disc 163 is provided with a limit shaft hole 163a, which is connected to the shaft hole of the second hinge assembly 120 for mounting the limiter 160 through a pin. The limit rotary disc 163 is also provided with a first connecting hole 163b for connecting one end of the synchronous link 172 ( Figure 17 ).

[0222] like Figure 14 As shown, the interlock 170 includes an interlocking rotary disc 171 and an interlocking stopper 176. The interlocking rotary disc 171 is provided with an interlocking shaft hole 171a, which is connected to the shaft hole of the second hinge assembly 120 for mounting the interlock 170 via a pin. The interlocking rotary disc 171 is also provided with a second connecting hole 171b, which is used to connect the other end of the synchronous link 172 ( Figure 17 ).

[0223] like Figure 15 As shown, the upper connecting rod assembly may include a movable connecting rod 144 and a fixed connecting rod 145. The movable connecting rod 144 and the fixed connecting rod 145 are hingedly connected by a pin. A limiting boss is provided at the end of the movable connecting rod 144 at the hinge point to form a first limiting member 144a. A limiting bolt is provided on the fixed connecting rod 145 to form a second limiting member 145a, thereby limiting the angle between the plane where the axis of the two ends of the movable connecting rod 144 is located and the plane where the axis of the two ends of the fixed connecting rod 145 is located to be no greater than 180° ( Figure 16The other end of the moving link 144 is hinged to the synchronization shaft 142 b of the second bracket 142 . The other end of the fixed link 145 is hinged to the shaft hole of the second hinge assembly 120 for mounting the fixed link 145 .

[0224] When the end wall 500 is in the folded state, as shown in FIG. Figure 2 As shown, the end wall 500 is stacked on the base frame 300. Since the weight of the end wall 500 is much greater than the third hinge assembly 130, the states of the various components of the hinge device 100 can be maintained as follows. Figure 17 As shown. With the second bracket 142 rotation axis as the rotation axis, the torque generated by the deadweight of the second bracket 142 is greater than the torque generated by the deadweight of the second locking block 141. The second locking block 141 has a driving force for upward movement. In order to prevent the second locking block 141 from protruding from the upper plane of the lifting hole plate, an upper connecting rod group is provided to connect the synchronous shaft 142b end of the second bracket 142 with the second hinge assembly 120 to provide additional downward pulling force and limit to maintain the second locking block 141 in the position shown in the figure. When the end wall 500 is erected, the distance between the synchronous shaft 142b of the second bracket 142 and the rotating axis of the upper connecting rod group of the second hinge assembly 120 gradually decreases. The upper connecting rod group needs to be foldable or retractable to adapt to this change. This embodiment selects a folding solution with lower processing and assembly requirements. To ensure that the upper link assembly can be folded and stored in the appropriate direction when the end wall 500 is erected, the angle between the planes containing the axes of the two ends of the dynamic link 144 and the planes containing the axes of the two ends of the fixed link 145 is no greater than 180°. Therefore, a limit stop is set at the hinge point of the upper link assembly. Because the fixed link 145 and the bearing on the second hinge assembly 120 for pivoting to the third hinge assembly 130 are in the same plane, to prevent interference between the two, the fixed link 145 is configured as a curved link.

[0225] The first locking assembly 150, the stopper 160, and the interlock 170 are all stabilized under their own weight. Figure 17 In the position shown, the limit block of the first hinge assembly 110 is in contact with the lower limit block of the second hinge assembly 120, and the second hinge assembly 120 rotates clockwise to the limit position relative to the first hinge assembly 110. At the same time, the first locking block 151 is embedded in the slot formed by the pad of the first hinge assembly 110 and the lower boss of the second hinge assembly 120, so that the first hinge assembly 110 is in a locked state and will not rotate relative to the second hinge assembly 120.

[0226] During the erection process of the end wall 500, when it is about to enter the erection position, if Figure 18As shown, the upper inclined surface of the second hinge assembly 120 contacts and squeezes the second locking block 141, pushing it away from the locked position. When the end wall 500 is completely vertical, the limit block of the third hinge assembly 130 contacts the upper limit block of the second hinge assembly 120, and the third hinge assembly 130 rotates to the extreme position. The upper boss of the second hinge assembly 120 and the pad of the third hinge assembly 130 form a slot. The second locking block 141 passes over the upper boss of the second hinge assembly 120. At this time, the center of gravity of the second bracket 142 is on the other side of the rotating shaft, which can provide a clockwise torque to rotate the second bracket 142, thereby driving the second locking block 141 to slide into the slot, thereby locking the relative rotation of the third hinge assembly 130 and the second hinge assembly 120 ( Figure 19 ).

[0227] When the third hinge assembly 130 and the second hinge assembly 120 need to be released, the second locking assembly 140 pedal is toggled to press the second bracket 142 to release the third hinge assembly 130 and the second hinge assembly 120. Figure 20 The stopper 160 is rotated in the direction shown to the limit position, and then the stopper 160 will rotate clockwise under the action of its own weight, and the stopper 160 lever is rotated to the bottom of the second bracket 142 to form a support. After the pedal is released, the second locking assembly 140 will remain in the unlocked state, as shown in FIG. Figure 21 As shown. At this time, the folding operation of the end wall 500 can be performed. Figure 21 In the state shown, the handle of the limiter 160 is toggled to the left, and the lever of the limiter 160 moves out from under the second bracket 142. The second bracket 142 rotates clockwise under its own weight, bringing the second locking block 141 back to the locked position, so that the third hinge assembly 130 is locked with the second hinge assembly 120 (as shown in FIG. Figure 20 shown).

[0228] catch Figure 21 If a downward force is applied to the first bracket 152 pedal at this time, the first bracket 152 can be pressed Figure 22 As shown, the first bracket 152 rotates clockwise to the limit position, at which time the first bracket 152 pushes the first locking block 151 away from the locked position, and the first hinge assembly 110 and the second hinge assembly 120 are unlocked. At the same time, the first bracket 152 contacts the gear lever of the interlock 170 and pushes the limiter 160 to rotate around the axis. The interlock 170 then drives the limiter 160 to rotate counterclockwise through the lower connecting rod. The gear lever of the limiter 160 moves out from under the second bracket 142. The second bracket 142 rotates clockwise under the action of its own weight, bringing the second locking block 141 back into the locked position, so that the third hinge assembly 130 and the second hinge assembly 120 are locked (as shown in FIG. Figure 23 shown).

[0229] exist Figure 23In the state of maintaining the force of the first bracket 152, that is, maintaining the unlocked state of the first hinge assembly 110 and the second hinge assembly 120, the end wall 500 can be turned outward, such as Figure 24 and Figure 25 At this time, the center of gravity of the second locking assembly 140 can always generate a clockwise rotation torque, so that the second locking block 141 always remains in the locked position, maintaining the locked state of the third hinge assembly 130 and the second hinge assembly 120 when the end wall 500 is turned outward.

[0230] During the process of the end wall 500 being erected from the outward-turned state, the first abutting surface 121a of the second hinge assembly 120 contacts the first locking block 151 (eg, Figure 24 As shown) and pushes it away from the locked position. When the end wall 500 is fully erected, the first limit block of the second hinge assembly 120 contacts the lower limit block of the first hinge assembly 110, and the second hinge assembly 120 rotates to the limit position. At the same time, the first stop member 111 of the first hinge assembly 110 and the first boss 121 of the second hinge assembly 120 form a slot, and the first locking block 151 bypasses the first boss 121 of the second hinge assembly 120. The first bracket 152 rotates counterclockwise under the action of its own weight and pushes the first locking block 151 into the slot, so that the first hinge assembly 110 and the second hinge assembly 120 are locked (as shown). Figure 19 shown).

[0231] Optionally, the second stop member 131 and the first stop member 111 can be tilted so that the slot for accommodating the locking block has a structure that is wide on the outside and narrow on the inside. Simultaneously, the contact surfaces between the first locking block 151 and the first stop member 111, and between the second locking block 141 and the second stop member 131, are designed to be inclined surfaces that match the angles, which can further facilitate the locking block from the unlocked position to the locked position.

[0232] from Figure 22 and Figure 23 It can be easily observed that if the first bracket 152 and the interlock 170 are slightly modified, the limit lever 161 will be pushed away from the bottom of the second bracket 142 before the first bracket 152 reaches the limit position. When the first bracket 152 reaches the limit position, the interlock 170 lever will rotate to the bottom of the first bracket 152 under the weight of the interlock 170 and the limiter 160, so that the first bracket 152 can be kept flipped without relying on the continuous action of external force, so that the first locking assembly 150 remains in the unlocked state. When the first locking assembly 150 needs to be relocked, Figure 23 Just move the limit operating part 162 to the right as shown.

[0233] Second embodiment

[0234] The parts of the hinge device 200 of this embodiment that are the same as those of the first embodiment will not be described in detail, and the following differences will be emphasized.

[0235] like Figures 26 to 43 As shown, in this embodiment, the second locking assembly 240 is movably connected to the second hinge assembly 220 between a second locked position, which locks the third hinge assembly 230, and a second unlocked position, which releases the third hinge assembly 230. Specifically, the second locking assembly 240 is movably connected to the second hinge assembly 220 and is movable between the second locked position and the second unlocked position relative to the second hinge assembly 220. When the second locking assembly 240 is in the second locked position, the third hinge assembly 230 is locked to the second hinge assembly 220, restricting the third hinge assembly 230 from pivoting relative to the second hinge assembly 220. When the second locking assembly 240 is in the second unlocked position, the third hinge assembly 230 is released, allowing the third hinge assembly 230 to pivot relative to the second hinge assembly 220.

[0236] See Figures 26 to 28 For example, the first locking assembly 250 is pivotally connected to the first hinge assembly 210 about a third axis AX3 parallel to the first axis AX1 between a first locked position and a first unlocked position. The second locking assembly 240 is pivotally connected to the second hinge assembly 220 about a fourth axis AX4 parallel to the first axis AX1 between a second locked position and a second unlocked position. The second hinge assembly 220 may include a first boss 221. The third hinge assembly 230 has a third boss 231. When the second hinge assembly 220 is in the second position and the third hinge assembly 230 is in the fourth position, the first boss 221 and the third boss 231 face away from each other in a first direction D1 perpendicular to the first axis AX1. When the second hinge assembly 220 is in the second position, the first locking block 251 is retained between the first boss 221 and the first hinge assembly 210. In this case, a first retaining groove is formed between the first boss 221 and the first hinge assembly 210 to allow the first locking block 251 to be retained. When the third hinge assembly 230 is located at the fourth position, the second locking block 241 is clamped between the third boss 231 and the second hinge assembly 220. At this time, a second clamping groove is formed between the third boss 231 and the second hinge assembly 220 to allow the second locking block 241 to be clamped.

[0237] See Figures 26 to 43Furthermore, the first boss 221 may include a first abutting surface 221a and a first supporting surface 221b. The first hinge assembly 210 may also include a first stop member 211. The first abutting surface 221a is configured to apply a first unlocking force to the first locking block 251 during the pivoting of the second hinge assembly 220 from the first position to the second position, causing the first locking block 251 to drive the first locking assembly 250 toward the first unlocked position. In other words, when the second hinge assembly 220 is in the second position, the distance from the first abutting surface 221a to the top end along the third direction D3 gradually decreases along the first direction D1 toward the first end of the hinge device. During the pivoting of the second hinge assembly 220 from the first position to the second position, the first abutting surface 221a pushes against the first locking block 251, causing the first locking block 251 to drive the first locking assembly 250 toward the first unlocked position. When the second hinge assembly 220 is located at the second position, the first locking block 251 is clamped between the first supporting surface 221b and the first stopping member 211. At this time, a first clamping groove is formed between the first supporting surface 221b and the first stopping member 211.

[0238] The third boss 231 may include a third abutting surface 231a and a third supporting surface 231b. The third hinge assembly 230 may also include a third stop member 222. The third abutting surface 231a is configured to apply a second unlocking force to the second locking block 241 during pivoting of the third hinge assembly 230 from the third position to the fourth position, causing the second locking block 241 to drive the second locking assembly 240 toward the second unlocked position. In other words, when the second hinge assembly 220 is in the second position and the third hinge is in the fourth position, the distance from the third abutting surface 231a to the top end of the hinge assembly along the third direction D3 decreases along the first direction D1 toward the second end of the hinge assembly. During pivoting of the third hinge assembly 230 from the third position to the fourth position, the third abutting surface 231a pushes against the second locking block 241, causing the second locking block 241 to drive the second locking assembly 240 toward the second unlocked position. The third stop member 222 has a third stop surface. When the third hinge assembly 230 is located at the fourth position, the second locking block 241 is locked in the second locking groove formed between the third supporting surface 231 b and the third stopping cotton.

[0239] See Figures 26 to 31 as well as Figures 34 to 43For example, the first hinge assembly 210 may further include a first notch 210a disposed near the first end. A first stop member 211 is located in the first notch 210a and is disposed near the top end along the third direction D3. The first stop member 211 has a first stop surface. When the second hinge assembly 220 is in the second position, a first engaging groove is formed between the first stop surface and the first support surface 221b. The first locking block 251 in the first unlocked position is further away from the second end than the first locking block 251 in the first locked position. When the second hinge assembly 220 is in the second position, the distance between the first support surface 221b and the first stop surface along the third direction D3 increases in the first direction D1 toward the first end. For example, the distance from the first stop surface to the top end along the third direction D3 gradually decreases in the first direction D1 toward the first end. In other words, the first stop surface is inclined upward in the first direction D1 toward the first end.

[0240] The second hinge assembly 220 may further include a third notch 220a. The second stop member is located in the third notch 220a and is disposed near the top end of the hinge assembly along the third direction D3. The second locking block 241 in the second unlocked position is further away from the first end than the second locking block 241 in the second locked position. When the second hinge assembly 220 is in the second position and the third hinge assembly 230 is in the fourth position, the distance from the third support surface 231b to the third stop surface along the third direction D3 increases in the first direction D1 away from the first end. When the second hinge assembly 220 is in the second position and the third hinge assembly 230 is in the fourth position, the distance from the third stop surface to the top end of the hinge assembly along the third direction D3 gradually decreases in the first direction D1 away from the first end. That is, the third stop surface is inclined downward in the first direction D1 away from the first end.

[0241] See Figures 27 to 30 as well as Figures 32 to 43 In addition, the hinge device may further include a first positioning assembly 280. The first positioning assembly 280 is connected to the first locking assembly 250. The first positioning assembly 280 may include a first positioning ball and a first elastic member. The first positioning ball is movably arranged along the second direction D2. The first elastic member is used to apply an elastic force to the first positioning ball toward the second hinge assembly 220. The second hinge assembly 220 includes a first receiving hole 220b for accommodating the first positioning ball. During the process of the first locking assembly 250 pivoting about the third axis AX3, the first locking assembly 250 sequentially passes through the above-mentioned first locking position, the above-mentioned first unlocking position, and the first manual unlocking position. When the first locking assembly 250 is in the first manual unlocking position and the second hinge assembly 220 is in the second position, the first positioning ball is partially located in the first receiving hole 220b. At this time, the volume of the first positioning ball located in the first receiving hole 220b is less than or equal to half the volume of the first positioning ball.

[0242] See Figure 27 、 Figure 28 、 Figure 30 as well as Figures 33 to 43 In addition, the hinge device may further include a second positioning assembly 290. The second positioning assembly 290 is connected to the second locking assembly 240. The second positioning assembly 290 may include a second positioning ball 291 and a second elastic member 292. The second positioning ball 291 is movably arranged along the second direction D2. The second elastic member 292 is configured to apply an elastic force to the second positioning ball 291 toward the third hinge assembly 230. The third hinge assembly 230 may include a second receiving hole 230a for accommodating the second positioning ball 291. During the pivoting process of the second locking assembly 240 about the fourth axis AX4, the second locking assembly 240 sequentially passes through the aforementioned second locked position, the aforementioned second unlocked position, and the second manually unlocked position. When the second locking assembly 240 is in the second manually unlocked position and the third hinge assembly 230 is in the fourth position, the second positioning ball 291 is partially located in the second receiving hole 230a. At this time, the volume of the second positioning ball 291 located in the second receiving hole 230a is less than or equal to half the volume of the second positioning ball 291.

[0243] The main differences between this embodiment and the first embodiment are:

[0244] The upper part of the second hinge assembly 220 is changed from a solid structure to a hollow semi-open box structure (such as Figure 30 As shown), the third hinge assembly 230 is changed from a semi-open box structure to a solid structure (as shown Figure 29 ), and inserted between the wall panels of the second hinge assembly 220 (as Figure 28 The first locking assembly 250 and second locking assembly 240 of this embodiment are essentially the same in principle and function as the first locking assembly 250 of the first embodiment. The difference is that the second operating portion 248 of this embodiment can be folded inward so that it does not protrude from the outer contour of the container. The limiter, interlock, and associated connecting rod are eliminated to simplify the structure. A detailed description is as follows:

[0245] like Figure 262 is an isometric view of the inner side of the hinge assembly, which includes a third hinge assembly 230, a second hinge assembly 220, a first hinge assembly 210, a stacking block 239, a second locking assembly 240, and a first locking assembly 250. The hinge assembly also includes a third hinge shaft connecting the third hinge assembly 230 and the second hinge assembly 220, a first hinge shaft connecting the second hinge assembly 220 and the first hinge assembly 210, a second locking shaft connecting the second hinge assembly 220 and the second locking assembly 240, and a first locking shaft connecting the first hinge assembly 210 and the first locking assembly 250. All of the aforementioned shafts have a pivoting function. The third hinge assembly 230 can be maintained in a stable state by the locking action of the third hinge shaft and the second locking assembly 240, and the second hinge assembly 220 can be maintained in a stable state by the locking action of the first hinge shaft and the first locking assembly 250. The stacking block 239 is used to limit the rotation of the second hinge assembly 220 in one direction.

[0246] like Figure 27 and Figure 28 The following are the axonometric drawings of the outer side of the hinge device and the axonometric drawings of the internal structure of the hinge device, except Figure 26 In addition to the visible structure, it also includes a second operating portion 248 and a first operating portion 254. The second operating portion 248 and the first operating portion 254 are foldable structures. In the figure, the second operating portion 248 is in a folded state, and the first operating portion 254 is in a vertical state. The purpose is that the handle is in a folded state under the action of gravity in a free state and does not extend beyond the outer side of the box. The tail of the second operating portion 248 is designed to be inclined toward the outer end of the container. It should be noted that the handle does not necessarily need to be set on the outside. It can be set on the inside, the outer end, or the inner end according to actual operational needs. The second operating portion 248 is connected to the second locking assembly 240 to drive its movement, and the first operating portion 254 is connected to the first locking assembly 250 to drive its movement.

[0247] like Figure 29 The figure shows the structure of the third hinge assembly 230, which includes a third hinge pin hole, a second accommodating hole 230a, and a third boss 231, wherein the third boss 231 includes a third supporting surface 231b and a third abutting surface 231a, and the third hinge pin hole is used to install the third hinge shaft.

[0248] like Figure 30The figure shows the structure of the second hinge assembly 220, which includes an upper portion, a lower portion, and a second hinge connecting plate. The upper portion of the second hinge assembly is wider, while the lower portion is narrower, and the two portions are connected by the second hinge connecting plate to form a single integral assembly. The upper portion of the second hinge includes a second wall panel 223, a second connecting angle member 224, and a third stop member 222. The second wall panel 223 includes a second hinge upper pin hole for mounting the third hinge shaft. The bracket hole of the second hinge assembly 220 is for mounting the second locking shaft. The second wall panel 223 includes a second avoidance hole for clearing the second operating portion 248. The lower part of the second hinge assembly includes a lower pin hole of the second hinge assembly, a first accommodating hole 220b, and a first boss 221. The lower pin hole of the second hinge assembly is used to install the first hinge shaft, wherein the first boss 221 includes a supporting surface of the second hinge assembly 220 and an abutting surface of the second hinge assembly 220.

[0249] like Figure 31 As shown, this is a structural diagram of the first hinge assembly 210, whose structure includes a first wall panel 212, a first connecting angle piece 214, and a first stop member 211. The first wall panel 212 includes a first hinge pin hole for installing the first hinge shaft and a first locking shaft hole for installing the first locking shaft. The first wall panel 212 includes a first avoidance hole, and the first avoidance hole is used to avoid the first operating part 254.

[0250] like Figure 32 The figure shows the structure of the second locking assembly 240, which includes a second bracket 242, a second locking block 241, and a second locking shaft. The second bracket 242 retains the second outer plate, the second inner plate, and the second connecting plate. The second outer plate and the second inner plate are both provided with a second locking shaft hole, a second locking shaft hole, and a second positioning assembly 290. The second outer plate also includes a second operating accommodating hole for installing the second operating part 248. The second locking block 241 is installed between the second outer plate and the second inner plate. The second locking shaft passes through the second locking shaft hole of the second outer plate, the second locking block 241, and the second locking shaft hole of the second inner plate, respectively, and is fixedly connected to the second locking block 241, so that the second locking block 241 and the second locking shaft are clamped between the two second locking shaft holes and have a certain amount of movable space.

[0251] like Figure 33The figure shows the structure of the first locking assembly 250, which includes a first bracket 252, a first locking block 251, and a locking shaft of the first locking block 251. The first bracket 252 includes a first outer plate, a first inner plate, and a first connecting plate. The first outer plate and the first inner plate are both provided with a first locking shaft hole, a first locking shaft hole, and a first positioning assembly 280. The first outer plate also includes a first operating accommodating hole for installing the first operating part 254. The first locking block 251 is installed between the first outer plate and the first inner plate. The first locking shaft passes through the first locking shaft hole of the first outer plate, the first locking block 251, and the first locking shaft hole of the first inner plate, respectively, and is fixedly connected to the first locking block 251, so that the first locking block 251 and the first locking shaft are clamped between the two first locking shaft holes and have a certain amount of movable space.

[0252] like Figure 34 As shown in the figure, the second locking block 241 is clamped between the third stop member 222 and the third boss 231. The stacking block 239 is against the second connecting angle piece 224. The second hinge assembly 220 cannot rotate clockwise or counterclockwise around the third hinge axis and is in a stable state. The first locking block 251 is clamped between the first stop member 211 and the first boss 221. The second hinge connecting plate of the second hinge assembly 220 is against the first connecting angle piece 214. The second hinge assembly 220 cannot rotate clockwise or counterclockwise around the first hinge axis and is in a stable state. At this time, the second hinge assembly is in the second position, and the third hinge assembly is in the fourth position, that is, the hinge device as a whole is in a vertical state, and its third hinge assembly 230 can withstand the force along the first direction D1 of the hinge device.

[0253] like Figure 35 As shown, it is a schematic diagram of the state where the second positioning assembly 290 and the second receiving hole 230a are staggered. Figure 34 The second positioning assembly 290 comprises a second positioning ball 291, a second elastic member 292, and a second plunger 293. The second positioning assembly 290 shown in the figure is mounted on the outer edge of the second bracket 242 of the second locking assembly 240. The second positioning ball 291 abuts against the side of the third hinge assembly 230 under the elastic force of the second elastic member 292. Due to the abutting force, the compression spring constituting the second elastic member 292 is compressed, resulting in minimal friction when the second positioning ball 291 moves relative to the third hinge assembly 230.

[0254] like Figure 36As shown, by operating the second operating part 248, the second locking assembly 240 is flipped clockwise along the second locking axis, and the second locking block 241 is disengaged from the cavity formed by the third stop member 222 and the third boss 231, thereby releasing the restriction on the counterclockwise rotation of the third hinge assembly 230. This state is the unlocked state of the second locking assembly 240.

[0255] like Figure 37 As shown, it is a schematic diagram of the state where the second positioning assembly 290 is aligned with the second receiving hole 230a. Figure 36 The CC cross-sectional view shows that due to the clockwise rotation of the second locking assembly 240, when the second positioning ball 291 moves to the second receiving hole 230a, the second positioning ball 291 is acted upon by the second elastic member 292 and extends into the second receiving hole 230a. Moreover, at this time, the second positioning ball 291 is acted upon by the tangential upward force of the second receiving hole 230a, supporting the entire second locking assembly 240 and overcoming the gravity of the second locking assembly 240, so that the second locking assembly 240 can be maintained. Figure 36 Unlocked state shown.

[0256] like Figure 38 and Figure 39 The figure shows a schematic diagram of the third hinge assembly 230 turning inward - the second locking assembly 240 being manually unlocked and the third hinge assembly 230 turning inward - the second locking assembly 240 being locked. This is a continuous process. The third hinge assembly 230 rotates 90 degrees counterclockwise around the third hinge axis, and the ball plunger gradually disengages from the second accommodating hole 230a, and its upward force disappears accordingly. Since the center of gravity of the second locking assembly 240 is located at the inner end of the center of the second locking axis, under the influence of gravity, the second locking assembly 240 rotates around the second locking axis to return to the locked state, and the second locking assembly 240 is supported by the second hinge connecting plate.

[0257] Continue to refer to Figure 34 、 Figure 36 、 Figure 38 and Figure 39 , and refer to Figure 40 The third hinge assembly 230 is turned inward and the second locking assembly 240 is automatically unlocked. The forward process is the process from the bracket unlocking to the third hinge assembly 230 flipping and folding. The reverse process is the third hinge assembly 230 standing up from the folded state. The order shown is Figure 39 、 Figure 38 、 Figure 40 、 Figure 34When the third hinge assembly 230 is about to reach the fourth position, the third abutting surface 231a squeezes the second locking block 241, forcing the second locking assembly 240 to rotate clockwise around the second locking shaft until the second locking block 241 is separated from the third protrusion 231 and is no longer squeezed. The second locking assembly 240 is affected by gravity and rotates counterclockwise around the second locking shaft to return to its original position. Since the second locking block 241 is in a state with a certain amount of movement, when the third hinge assembly 230 reaches the fourth position, the locking block is reversed by the bracket and falls back into the cavity formed by the third protrusion 231 and the third stop member 222, returning to the Figure 34 The locked state is shown.

[0258] contrast Figure 36 and Figure 40 , are all in the unlocked state of the second locking assembly 240, Figure 36 The second locking assembly 240 is unlocked by operating the second operating portion 248 to flip the second locking assembly 240. The second locking block 241 is obviously away from the third boss 231, and the ball plunger can reach the position of the second receiving hole 230a, which is manual unlocking. Figure 40 The second locking assembly 240 is unlocked by the third abutting surface 231a squeezing the second locking block 241 to force the second locking assembly 240 to flip over. Since the second locking assembly 240 has a tendency to return to its original position under the influence of gravity, the second locking block 241 is always close to the third boss 231, and the second locking assembly 240 does not rotate much. Figure 36 The manual unlocking is not large enough, the ball plunger cannot reach the position of the second accommodating hole 230a, the second locking assembly 240 will not remain in a tilted and stranded state, and the second locking block 241 will first move away due to the squeezing of the third boss 231, and then automatically return to the cavity formed by the third stop member 222 and the third boss 231.

[0259] like Figure 41 、 Figure 42 、 Figure 43 As shown, it is a schematic diagram of the process of unlocking the first locking component 250, turning the second hinge component 220 outward, and locking the first locking component 250. The forward process is the process of turning the second hinge component 220 outward, and the reverse process is the process of the second hinge component 220 from turning outward to erecting. The principle and process are similar to the process of turning the third hinge component 230 upright to turning inward described above. A detailed description is not given here. The special point is that during the process of turning the second hinge component 220 outward, the second locking component 240 is always in a locked state, that is, the center of gravity of the second locking component 240 is always at the inner end of the center of the second locking shaft. Figure 42 and Figure 43As shown, under the influence of the gravity of the second locking component 240, the second locking component 240 always has a counterclockwise rotation force, and the second locking block 241 can always be in the locked position. Figure 43 When shown, it will remain in the folded position due to gravity.

[0260] See Figures 2 to 4 , and combined with Figures 5 to 43 The present application also provides a platform-type container, comprising a base frame 300, an end wall 500, and a hinge device 100 obtained from any of the above embodiments or any combination thereof. The base frame 300 includes an end beam. A first hinge assembly 110 is connected to the base frame 300. A third hinge assembly 130 is connected to the end wall 500. The first axis AX1 is parallel to the end beam. When the second hinge assembly 120 is in the second position and the third hinge assembly 130 is in the fourth position, the end wall 500 is upright relative to the base frame 300. The hinge device 100 is configured such that:

[0261] When the second hinge assembly 120 pivots from the first position to the second position, the end wall 500 can pivot from the outward-turned position to the upright position outside the bottom frame 300. When the third hinge assembly 130 pivots from the third position to the fourth position, the end wall 500 can pivot from the folded position to the upright position.

[0262] According to the platform-type container of the present application, by applying the above-mentioned hinge device, during the flipping operation of the end wall from the folded position to the upright position and from the outward-turned position to the upright position, the first locking component or the second locking component can be automatically unlocked and locked without additional operation. When the end wall is in the upright position, the first locking component can be maintained in the first locking position without external force, and the second locking component can be maintained in the second locking position without external force, thereby making the use of the platform container more labor-saving and efficient.

[0263] like Figures 2 to 4 As shown, the platform container includes a bottom frame 300 for loading cargo, and end walls 500 arranged at both ends of the bottom frame 300 are hinged to the bottom frame 300 through hinge devices 100. When loading cargo, the end walls 500 are upright and the cargo is placed on the bottom frame 300. The cargo can be transported in the same way as a conventional container, meeting the needs of transportation and stacking at the same time. Figure 3 As shown, when the pallet container is empty, the end wall 500 is folded inward onto the base frame 300 via the hinge assembly 100. The folded pallet containers are linked together using standard twist locks, and several pallets form a transport module, which occupies a small space. Furthermore, the number of dock hoists is reduced, and the costs of empty container transportation, storage, and dock hoisting operations are low. Figure 4As shown, when loading, the end wall 500 is tilted outward from the container. In an example not shown, if the end wall 500 tilts downward after being tilted outward, that is, the free end of the end wall 500 is lower than the installation plane of the base frame 300 after being tilted outward, the end wall 500 can then serve as a ramp or part of a ramp for loading cargo, such as using a forklift to transport cargo onto the base frame 300 of the platform container. If the cargo is a vehicle, the end wall 500 can also serve as a ramp to allow the vehicle to be driven into the container.

[0264] It should be noted that the bottom corner fitting of the first hinge assembly 110 and the lifting eye plate of the third hinge assembly 130 are not essential to the hinge device 100 itself. They do not contribute to the hinge's flipping and locking functions, but only serve as structural connections. They can be replaced by other parts or eliminated without affecting the functionality of the hinge device 100. Because the hinge device 100 of the platform-type container in this example is located at the same position as the container's standard corner fitting and lifting position, it is necessary to consider both lifting issues and the coordination between the hinge and corner fitting. This situation is quite common in actual applications, so this example is used to demonstrate the substantial feasibility and versatility of the present invention.

[0265] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the technical field of this application. The terms used herein are only for describing specific implementation purposes and are not intended to limit this application. Terms such as "setting" appearing in this document can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate component. Features described in this document in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0266] The present application has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present application to the described embodiments. Those skilled in the art will appreciate that many more variations and modifications may be made based on the teachings of this application, and all of these variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A hinge device for a platform container, characterized in that: The hinge device comprises: a first hinge assembly for connecting to a chassis of the platform container; a second hinge assembly pivotally connected to the first hinge assembly about a first axis between a first position and a second position; a third hinge assembly for connection to an end wall of the platform container, the third hinge assembly being pivotally connected to the second hinge assembly about a second axis between a third position and a fourth position, the second axis being parallel to the first axis, wherein a pivoting direction of the third hinge assembly from the third position to the fourth position is opposite to a pivoting direction of the second hinge assembly from the first position to the second position; a first locking assembly movably connected to the first hinge assembly relative to the first hinge assembly between a first locking position locking the second hinge assembly and a first unlocking position releasing the second hinge assembly; and a second locking assembly, wherein the second locking assembly is movably connected to the third hinge assembly between a second locking position for locking the third hinge assembly and a second unlocking position for releasing the third hinge assembly relative to the third hinge assembly, or the second locking assembly is movably connected to the second hinge assembly between the second locking position for locking the third hinge assembly and the second unlocking position for releasing the third hinge assembly relative to the second hinge assembly, Wherein, the hinge device is constructed such that: When the hinge device is mounted on the platform container, the first axis is parallel to the end beam of the platform container. When the first locking assembly is in a first unlocking position for releasing the second hinge assembly, and the second locking assembly is in a second locking position for locking the third hinge assembly, the second hinge assembly is in the first position, and the end wall is turned outward relative to the base frame to the outside of the base frame; When the first locking assembly is in a first locking position for locking the second hinge assembly, and the second locking assembly is in a second unlocking position for releasing the third hinge assembly, the third hinge assembly is in the third position and the second hinge assembly is in the second position, and the end wall is folded relative to the base frame to above the base frame.

2. A hinge device for a platform container, characterized in that: The hinge device comprises: a first hinge assembly for connecting to a chassis of the platform container; a second hinge assembly pivotally connected to the first hinge assembly about a first axis between a first position and a second position; a third hinge assembly for connection to an end wall of the platform container, the third hinge assembly being pivotally connected to the second hinge assembly about a second axis between a third position and a fourth position, the second axis being parallel to the first axis, wherein a pivoting direction of the third hinge assembly from the third position to the fourth position is opposite to a pivoting direction of the second hinge assembly from the first position to the second position; a first locking assembly movably connected to the first hinge assembly relative to the first hinge assembly between a first locking position locking the second hinge assembly and a first unlocking position releasing the second hinge assembly; and a second locking assembly, wherein the second locking assembly is movably connected to the third hinge assembly between a second locking position for locking the third hinge assembly and a second unlocking position for releasing the third hinge assembly relative to the third hinge assembly, or the second locking assembly is movably connected to the second hinge assembly between the second locking position for locking the third hinge assembly and the second unlocking position for releasing the third hinge assembly relative to the second hinge assembly, Wherein, the hinge device is constructed such that: When the second hinge assembly is in the second position, the first locking assembly is in the first locking position and is locked between the first hinge assembly and the second hinge assembly, so that the second hinge assembly cannot pivot relative to the first hinge assembly. When the third hinge assembly is in the third position and the fourth position, the first locking assembly is always kept in the first locking position, and the first locking assembly can always be kept in the first locking position without external force. During the process of the third hinge assembly pivoting from the third position to the fourth position, the third hinge assembly or the second hinge assembly is used to apply a second unlocking force to the second locking assembly so that the second locking assembly is disengaged from the second locking position; when the third hinge assembly is in the fourth position, the second locking assembly is in the second locking position to be clamped between the third hinge assembly and the second hinge assembly, so that the third hinge assembly cannot pivot relative to the second hinge assembly, and during the process of the second hinge assembly pivoting between the first position and the second position, the second locking assembly is always maintained in the second locking position, and the second locking assembly can always be maintained in the second locking position without the application of external force; When the hinge device is mounted to the platform container, the first axis is parallel to the end beam of the platform container, so that when the second hinge assembly is in the second position and the third hinge assembly is in the fourth position, the end wall is upright relative to the base frame.

3. The hinge device according to claim 1 or 2, characterized in that: The hinge device further comprises: a first operating portion connected to the first locking assembly, the first operating portion being configured to drive the first locking assembly to move when a first operating force is applied to the first operating portion, so as to deviate the first locking assembly from the first locking position; and a second operating portion connected to the second locking assembly, the second operating portion being configured to drive the second locking assembly to move when a second operating force is applied to the second operating portion, so as to cause the second locking assembly to deviate from the second locking position; Wherein, the hinge device is constructed as follows: After the first operating force is released from the first operating portion, the first locking assembly returns to the first locking position under the action of an automatic restoring force; After the second operating force is released from the second operating portion, the second locking assembly returns to the second locking position under the action of the automatic restoring force.

4. The hinge device according to claim 3, characterized in that The first locking assembly is pivotally connected to the first hinge assembly about a third axis parallel to the first axis between the first locked position and the first unlocked position, The first locking assembly includes a first locking block, and when the second hinge assembly is in the second position, the first locking block is clamped between the second hinge assembly and the first hinge assembly to restrict the second hinge assembly from moving toward the first position; The second locking assembly is pivotally connected to the third hinge assembly about a fourth axis parallel to the first axis between the second locked position and the second unlocked position, The second locking assembly includes a second locking block. When the third hinge assembly is located at the fourth position, the second locking block is clamped between the second hinge assembly and the third hinge assembly to restrict the third hinge assembly from moving toward the third position.

5. The hinge device according to claim 4, characterized in that: The first locking assembly further includes a first bracket and a first counterweight, the first bracket being pivotally connected to the first hinge assembly about the third axis, the first bracket being connected to the first locking block, the first counterweight being connected to the first bracket, the first counterweight and the first locking block being located on either side of the third axis, respectively, the first counterweight being configured to apply an automatic restoring force to the first locking assembly during pivoting of the first hinge assembly from the first position to the second position, causing the first locking assembly to pivot toward the first locked position; When the second hinge assembly moves to the second position, the first locking block returns to the first locking position along with the first locking assembly under the action of the automatic restoring force; The second locking assembly further includes a second bracket and a second counterweight, the second bracket being pivotally disposed about the fourth axis, the second locking block being movably connected to the second bracket, the second counterweight being connected to the second bracket, the second counterweight and the second locking block being respectively located on either side of the fourth axis, the second counterweight being configured to provide an automatic restoring force to the second locking assembly during a process in which the third hinge assembly pivots from the third position to the fourth position, so as to cause the second locking assembly to pivot toward the second locked position; When the third hinge assembly moves to the fourth position, the second locking block returns to the second locking position along with the second locking assembly under the action of the automatic restoring force; The second hinge assembly includes a first boss and a second boss. When the second hinge assembly is in the second position, the first boss and the second boss are respectively located on opposite sides of the second hinge assembly along a first direction, wherein the first direction is perpendicular to the first axis. When the second hinge assembly is located at the second position, the first locking block is clamped between the first boss and the first hinge assembly. When the third hinge assembly is located at the fourth position, the second locking block is clamped between the second boss and the third hinge assembly.

6. The hinge device according to claim 5, characterized in that The hinge device further includes a limiter, the limiter being pivotally connected to the second hinge assembly about a seventh axis parallel to the first axis between a stop position and an avoidance position, the limiter being located at the stop position being used to apply a force to the second locking assembly located at the second unlocked position so that the second locking assembly remains in the second unlocked position. The limiter includes a limit operating portion, and the limit operating portion is used to be operated to cause the limiter to pivot between the stop position and the avoidance position.

7. The hinge device according to claim 6, characterized in that The hinge device further includes a chain and a synchronous link, wherein the chain is pivotally connected to the second hinge assembly around an eighth axis parallel to the first axis, the chain is pivotally connected to one end of the synchronous link around a ninth axis parallel to the eighth axis, and the other end of the synchronous link is pivotally connected to the limiter around a tenth axis parallel to the ninth axis, and the chain has a chain stop lever. When the limiter is located at the stop position, the interlocking lever abuts against the first locking assembly located at the first locking position; The first locking assembly is used to push the locking lever when the first locking assembly moves from the first locking position to the first unlocking position, so as to drive the limiter to pivot toward the avoidance position via the chain.

8. The hinge device according to claim 4, characterized in that The first locking assembly further includes a first bracket and a first counterweight, the first bracket being pivotally connected to the first hinge assembly about the third axis, the first bracket being connected to the first locking block, the first counterweight being connected to the first bracket, the first counterweight and the first locking block being located on either side of the third axis, respectively, the first counterweight being configured to apply an automatic restoring force to the first locking assembly during pivoting of the first hinge assembly from the first position to the second position, causing the first locking assembly to pivot toward the first locked position; When the second hinge assembly moves to the second position, the first locking block returns to the first locking position along with the first locking assembly under the action of the automatic restoring force; The second locking assembly further includes a second bracket and a second counterweight, the second bracket being pivotally disposed about the fourth axis, the second locking block being movably connected to the second bracket, the second counterweight being connected to the second bracket, the second counterweight and the second locking block being respectively located on either side of the fourth axis, the second counterweight being configured to provide an automatic restoring force to the second locking assembly during a process in which the third hinge assembly pivots from the third position to the fourth position, so as to cause the second locking assembly to pivot toward the second locked position; When the third hinge assembly moves to the fourth position, the second locking block returns to the second locking position along with the second locking assembly under the action of the automatic restoring force; The second hinge assembly includes a first boss, and the third hinge includes a third boss. When the second hinge assembly is in the second position and the third hinge assembly is in the fourth position, the first boss and the third boss are oriented away from each other along a first direction, wherein the first direction is perpendicular to the first axis. When the second hinge assembly is located at the second position, the first locking block is clamped between the first boss and the first hinge assembly. When the third hinge assembly is located at the fourth position, the second locking block is clamped between the third boss and the second hinge assembly.

9. The hinge device according to claim 8, characterized in that: The hinge device further includes a first positioning assembly connected to the first locking assembly, the first positioning assembly including a first positioning ball and a first elastic member, the first positioning ball being movably arranged in a direction parallel to the first axis, the first elastic member being used to apply an elastic force to the first positioning ball toward the second hinge assembly, The second hinge assembly includes a first receiving hole for receiving the first positioning ball. During the process of the first locking assembly pivoting around the third axis, the first locking assembly passes through the first locking position, the first unlocking position, and the first manual unlocking position in sequence. When the first locking assembly is located at the first manual unlocking position and the second hinge assembly is located at the second position, the first positioning ball is partially located in the first accommodating hole, and the volume of the first positioning ball located in the first accommodating hole is less than or equal to half of the volume of the first positioning ball.

10. The hinge device according to claim 8, characterized in that The hinge device further includes a second positioning assembly connected to the second locking assembly, the second positioning assembly including a second positioning ball and a second elastic member, the second positioning ball being movably arranged in a direction parallel to the first axis, and the second elastic member being used to apply an elastic force toward the third hinge assembly to the second positioning ball. The third hinge assembly includes a second receiving hole for receiving the second positioning ball. During the process of the second locking assembly pivoting around the fourth axis, the second locking assembly passes through the second locking position, the second unlocking position, and the second manual unlocking position in sequence. When the second locking assembly is located at the second manual unlocking position and the third hinge assembly is located at the fourth position, the second positioning ball is partially located in the second accommodating hole, and the volume of the second positioning ball located in the second accommodating hole is less than or equal to half of the volume of the second positioning ball.

11. The hinge device according to claim 5, characterized in that The first boss includes a first abutting surface and a first supporting surface, and the first hinge assembly further includes a first stopping member. The first abutting surface is used to apply a first unlocking force to the first locking block during the process of the second hinge assembly pivoting from the first position to the second position, so that the first locking block drives the first locking assembly to move toward the first unlocked position; When the second hinge assembly is located at the second position, the first locking block is clamped between the first supporting surface and the first stopping member; The second boss includes a second abutting surface and a second supporting surface, and the third hinge assembly further includes a second stopping member. The second abutment surface is used to apply a second unlocking force to the second locking block during the process of the third hinge assembly pivoting from the third position to the fourth position, so that the second locking block drives the second locking assembly to move toward the second unlocked position; when the third hinge assembly is in the fourth position, the second locking block is clamped between the second supporting surface and the first stop member.

12. The hinge device according to claim 8, characterized in that The first boss includes a first abutting surface and a first supporting surface, and the first hinge assembly further includes a first stopping member. The first abutting surface is used to apply a first unlocking force to the first locking block during the process of the second hinge assembly pivoting from the first position to the second position, so that the first locking block drives the first locking assembly to move toward the first unlocked position; When the second hinge assembly is located at the second position, the first locking block is clamped between the first supporting surface and the first stopping member; The third boss includes a third abutting surface and a third supporting surface, and the third hinge assembly further includes a third stopping member. The third abutment surface is used to apply a second unlocking force to the second locking block during the process of the third hinge assembly pivoting from the third position to the fourth position, so that the second locking block drives the second locking assembly to move toward the second unlocked position; when the third hinge assembly is in the fourth position, the second locking block is clamped between the third supporting surface and the third stop member.

13. The hinge device according to claim 5, characterized in that The second locking assembly further includes a second bracket and a synchronization shaft, the second bracket being pivotally connected to the third hinge assembly about the fourth axis, the synchronization shaft being connected to the second bracket, the second locking block being movably connected to the second bracket, and the second locking block being located between the fourth axis and the synchronization shaft, The hinge device further includes a moving link and a fixed link, wherein the first end of the moving link is pivotally connected to the second bracket via the synchronization shaft, the second end of the moving link is pivotally connected to the first end of the fixed link around a fifth axis, and the second end of the fixed link is pivotally connected to the second hinge assembly around a sixth axis, and the fifth axis and the sixth axis are both parallel to the first axis. When the third hinge assembly is located at the third position, the fixed link and the dynamic link are used together to apply a force to the second bracket to restrict the second locking block from moving toward the outside of the third hinge assembly.

14. The hinge device according to claim 13, characterized in that The hinge device also includes a first limiting member and a second limiting member, the first limiting member is connected to the second end of the dynamic link, and the second limiting member is connected to the first end of the fixed link. When the third hinge assembly is in the third position, the sixth axis and the fifth axis define a first plane, and the fifth axis and the axis of the synchronization shaft define a second plane, and the angle between the first plane and the second plane is less than 180°.

15. The hinge device according to claim 1 or 2, characterized in that: In a direction parallel to the first axis, the first hinge component has a first size, the second hinge component has a second size, and the third hinge component has a third size; In a direction parallel to the first axis, a distance between any two of the centers of mass of the first hinge assembly, the second hinge assembly, and the third hinge assembly is less than half of the smallest of the first dimension, the second dimension, and the third dimension.

16. The hinge device according to claim 1 or 2, characterized in that: The third hinge assembly includes a lifting hole plate, which is provided with a lifting hole. When the hinge device is installed on the platform container, the lifting hole faces upward when the third hinge assembly is in the third position, so as to be used for coupling the platform container.

17. A platform-type container, characterized in that: The platform container includes: an underframe, the underframe including end beams; end walls; and The hinge device according to claim 1 or any one of claims 2 to 16, wherein the first hinge assembly is connected to the base frame, the third hinge assembly is connected to the end wall, and the first axis is parallel to the end beam, so that when the second hinge assembly is in the second position and the third hinge assembly is in the fourth position, the end wall is upright relative to the base frame. Wherein, the hinge device is constructed such that: During the pivoting of the second hinge assembly from the first position to the second position, the end wall is capable of pivoting from an outwardly turned position to the upright position, outwardly turned to the exterior of the chassis; During the pivoting of the third hinge assembly from the third position to the fourth position, the end wall is pivotable from a folded position folded on the base frame to an erected position erected on the base frame.

Images