A container top-opening door structure and a container

Abstract

This application discloses a container top-hinged door structure and a container. The top-hinged door structure includes a top-hinged door and a bottom lock. The top-hinged door includes a door panel, the top of which is pivotally connected to the container body. The bottom lock is used to lock or unlock the door panel and includes a hook assembly, a rod assembly, and a handle assembly. The hook assembly includes a hook and a hook baffle. The hook baffle is fixedly connected to the lower end of the door panel, and the hook cooperates with the hook baffle to lock or unlock the door panel. The rod assembly includes a rod, which is detachably connected to the inside of the door sill and can rotate about the rod's axis. One end of the rod and the hook are connected via a connecting member, which passes through the rod and hook to allow the hook to rotate with the rod. The handle assembly includes a handle, which is detachably connected to the rod and used to actuate the rod's rotation. According to the top-hinged door structure of this application, the bottom lock's rod, hook, handle, and other components are all detachably connected, making installation and disassembly convenient, allowing for individual replacement, and minimizing hook wear.

Description

Technical Field

[0001] This application relates to the field of container design technology, and more specifically to a container top-opening door structure and a container. Background Technology

[0002] Containers are widely used as a means of freight transport. To facilitate unloading, container ends can feature upward-opening doors, with bottom locking devices installed at the bottom of the container to lock the doors during transport. Typically, the bottom locking device for upward-opening containers includes a locking rod, handle, bracket, and hook. In traditional bottom locking devices, the hook is welded to the locking rod and engages with a lock hole on the door panel. The bracket and hook are prone to wear during use, and the bottom locking device is not easy to install and disassemble. Damage to parts requires replacement of the entire device, which is inconvenient for future maintenance and costly.

[0003] Therefore, a container top-hinged door structure and a container are needed to at least partially solve the above problems. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, a first aspect of this application provides a container top-opening door structure, comprising:

[0006] The upward-opening door includes:

[0007] A door panel, the top of which is pivotally connected to the container body;

[0008] A bottom lock, used to lock or unlock the door panel, the bottom lock comprising:

[0009] A locking hook assembly, comprising a locking hook and a locking hook baffle, wherein the locking hook baffle is fixedly connected to the lower end of the door panel, and the locking hook cooperates with the locking hook baffle to lock or unlock the door panel;

[0010] A locking bar assembly, the locking bar assembly including a locking bar detachably connected to the inside of the sill and rotatable about the axis of the locking bar, the locking bar and one end of the locking hook being connected by a connecting member passing through the locking bar and the locking hook, so that the locking hook rotates with the locking bar;

[0011] A handle assembly, the handle assembly including a handle, the handle being detachably and kinetically connected to the locking lever, the handle being used to actuate the locking lever to rotate.

[0012] The container top-hinged door structure according to this application includes a top-hinged door and a bottom lock. The bottom lock's hook cooperates with a hook baffle fixed to the lower end of the top-hinged door panel to lock or unlock the door panel, resulting in minimal wear on the hook. Furthermore, a locking rod is detachably connected to the inside of the door sill. One end of the locking rod and the hook are connected via a connector, and the handle is detachably connected to the locking rod. Therefore, the bottom lock's locking rod, hook, handle, and other components are all detachably connected, facilitating installation and disassembly. Damaged parts can be replaced individually without replacing the entire bottom lock.

[0013] Optionally, the tail end of the connection between the locking hook and the locking rod has an opening, and the locking hook and the locking rod are fastened together by bolts through the opening.

[0014] Optionally, the locking lever assembly further includes:

[0015] A fixing plate, the fixing plate being fixed to the inside of the threshold;

[0016] A bracket, detachably connected to the fixing plate, wherein the locking bar extends through the bracket along the width direction of the container;

[0017] A bushing is disposed between the locking rod and the bracket.

[0018] Optionally, one end of the locking bar extends through the bottom side beam of the container, the handle is located on the outside of the bottom side beam, and the locking bar and the handle are connected in an L-shape.

[0019] Optionally, the handle and the locking rod are connected by a flat key, the handle having a threaded hole through which a screw abuts against the flat key.

[0020] Optionally, the handle has an outwardly projecting portion along the width direction of the container, the projecting portion having a first through hole, and the handle assembly further includes a locking mechanism for fixing the position of the handle such that the locking hook is in the position of locking the door panel, the locking mechanism including:

[0021] A fixing seat, which is fixedly connected to the lower surface of the upper edge of the bottom side beam;

[0022] A side plate, which is fixedly connected to the bottom side beam at a position higher than the handle, and the side plate has a second through hole;

[0023] A pin, which is movably connected to the fixed base via a chain;

[0024] A limiting plate, pivotally connected to the fixed base about an axis along the width direction of the container, the lower end of the limiting plate having a third through hole, the limiting plate being pivotable to align with the first through hole and the third through hole, a pin passing through the first through hole and the third through hole, and the limiting plate being pivotable to align with the second through hole and the third through hole, the pin passing through the second through hole and the third through hole.

[0025] Optionally, the lock hook baffle has a bent structure for avoiding the rubber strip at the lower end of the door panel.

[0026] Optionally, the upward-opening door further includes a hinge, one end of which is connected to the door panel, and the other end of which is connected to the back beam of the end face of the container.

[0027] Optionally, the upward-opening door further includes a limiting member, the upper end of which is fixedly connected to the lower end of the door panel, and the lower end of which is configured to contact the threshold of the container when the door panel is in the closed position.

[0028] A second aspect of this application provides a container including an upward-opening door structure according to any of the preceding claims.

[0029] Optionally, the upper edge of the bottom side beam of the container has a notch, the notch being configured such that the handle can be rotated upwards until the tail of the handle extends beyond the upper edge.

[0030] Optionally, the container also includes a protective panel connected to the lower part of the container's threshold and bottom side beams.

[0031] Optionally, the container further includes a rotating member pivotally connected to a corner post of the container between a first position and a second position, wherein the rotating member in the first position is located to the side of the upward-opening door to allow the door panel to open normally, and the rotating member in the second position prevents the door panel from opening.

[0032] According to this application, the bottom lock for locking or unlocking the top-hinged door of the container comprises a detachable locking rod, locking hook, handle, and other components, facilitating easy installation and disassembly, and allowing for individual replacement of damaged parts. Notches on the upper and / or lower edges of the bottom side beam increase the rotation angle of the handle. When the container's bottom corner fittings are connected to the transport vehicle, the container's sill and the protective plate below the bottom side beam protect the locking rod from damage due to impact. The rotating component serves as a safety mechanism to prevent accidental opening of the top-hinged door. Attached Figure Description

[0033] The following drawings, which are incorporated herein by reference and are used to understand this application, illustrate embodiments of the invention and their descriptions to explain the principles of the invention.

[0034] Figure 1 This is a schematic diagram of the container top-opening door structure according to a specific embodiment of this application, viewed along the length of the container.

[0035] Figure 2 This is a top view schematic diagram of the bottom lock of a container top-opening door structure according to a specific embodiment of this application, wherein the locking mechanism is not shown;

[0036] Figure 3 For along Figure 2 Schematic cross-sectional view of midline AA;

[0037] Figure 4 For along Figure 2 A partial schematic diagram in the B direction;

[0038] Figure 5 For along Figure 2 Cross-sectional view of the center line CC;

[0039] Figure 6 This is a schematic diagram of the container top-opening door structure according to a specific embodiment of this application, viewed along the width of the container.

[0040] Figure 7 This is a three-dimensional structural diagram of a container top-opening door structure according to a specific embodiment of this application;

[0041] Figure 8 for Figure 7 A magnified view of a portion of region D in the middle.

[0042] Explanation of reference numerals in the attached figures:

[0043] 10: Door panel; 20: Limiting component

[0044] 30: Rotating component; 40: Hinge

[0045] 50: Back beam; 60: Threshold

[0046] 70: Bottom side beam 80: Notch

[0047] 90: Protective panel; 100: Column

[0048] 111: Locking hook 112: Locking hook baffle

[0049] 113 / 134: Pin; 114: Cotter pin

[0050] 115: Bolt; 116: Connector

[0051] 121: Locking bar 122: Bracket

[0052] 123: Fixing plate; 124: Bushing

[0053] 125: Flat key 131: Handle

[0054] 132: Protrusion 133: First through hole

[0055] 135: Fixture 136: Side plate

[0056] 137: Limiting plate; 138: Second through hole

[0057] 139: Third through hole; 140: Threaded hole

[0058] 141: Hook and Loop Detailed Implementation

[0059] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.

[0060] To fully understand this application, a detailed description will be set forth in the following description. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. Obviously, the implementation of embodiments of this application is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this application are described in detail below; however, in addition to these detailed descriptions, this application may have other implementations.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0062] Ordinal numbers such as “first” and “second” used in this application are merely identifiers and have no other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0063] It should be noted that the terms “up,” “down,” “front,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used in this article are for illustrative purposes only and are not intended to be restrictive.

[0064] This application provides a container top-opening door structure and a container.

[0065] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings.

[0066] refer to Figures 1 to 4 The first aspect of this application provides a container top-hinged door structure, including a top-hinged door and a bottom lock. The top-hinged door includes a door panel 10, the top of which is pivotally connected to the container body, for example, to a central crossbeam on the end face. The top-hinged door is a semi-high door. The bottom lock is used to lock or unlock the door panel 10. The bottom lock includes a hook assembly, a lever assembly, and a handle assembly. The hook assembly includes a hook 111 and a hook baffle 112. The hook baffle 112 is fixedly connected to the lower end of the door panel 10. The hook 111 cooperates with the hook baffle 112 to lock or unlock the door panel 10. When the hook 111 abuts against the hook baffle 112 on its outer side, it prevents the door panel 10 from opening. Rotating the hook 111 outward releases the hook baffle 112, unlocking the door panel 10. The lever assembly includes a lever 121, which is detachably connected to the inner side of a sill 60 and rotatable about its axis E. One end of the locking lever 121 and the locking hook 111 are connected via a connector 116, which passes through the locking lever 121 and the locking hook 111, allowing the locking hook 111 to rotate with the locking lever 121. The handle assembly includes a handle 131, which is detachably connected to the locking lever 121 and is used to actuate the locking lever 121 to rotate.

[0067] According to the upward-opening door structure of this application, the lock hook 111 does not need to pass through the door panel 10 during locking or unlocking, resulting in less wear on the lock hook 111. Furthermore, components such as the lock rod 121, lock hook 111, and handle 131 are all detachable, making installation and disassembly convenient. Damaged parts can be replaced individually without replacing the entire bottom lock. The holes in the lock rod 121 are machined to ensure installation accuracy.

[0068] Specifically, the threshold 60 has a through hole to allow the locking hook 111 to pass through the inside of the threshold 60 to the outside of the threshold 60 and engage with the locking hook baffle 112. The size of the through hole is set so that the locking hook 111 can rotate at a certain angle with the locking rod 121. Preferably, a penetrating tube is provided in the through hole to protect the threshold 60, and the locking hook 111 passes through the hollow part of the penetrating tube.

[0069] Preferably, such as Figure 3As shown, the locking hook 111 is generally L-shaped. The locking rod 121 passes through one end of the locking hook 111. The connecting member 116 includes a pin 113 and a cotter pin 114. The pin 113 passes through the locking rod 121 and the locking hook 111, and the cotter pin 114 passes through the pin 113 to fix the connection between the pin 113 and the locking rod 121 and the locking hook 111, thereby allowing the locking hook 111 to rotate with the locking rod 121. It should be noted that the connecting member 116 can also be a cotter pin or a threaded pin passing through the locking rod 121 and the locking hook 111. The connecting member 116 can also be a bolt or a nut. In addition, the connecting member 116 can also be other metal parts passing through the locking rod 121 and the locking hook 111, etc. This application does not limit this.

[0070] Optionally, such as Figure 3 As shown, the tail end of the connection between the locking hook 111 and the locking rod 121 has an opening. The opening is tightened by bolts 115 and nuts to connect and secure the locking hook 111 and the locking rod 121. When the locking rod 121 drives the locking hook 111 to rotate, the force on the pin 113 can be reduced, thus reducing the risk of deformation or damage to the pin 113.

[0071] like Figure 5 As shown, the locking bar assembly also includes a fixing plate 123, a bracket 122, and a bushing 124. The fixing plate 123 is fixedly connected (e.g., welded) to the inside of the container's sill 60. The fixing plate 123 has a certain thickness to facilitate the detachable connection (e.g., by screws) of the bracket 122 to the fixing plate 123, and also provides space for the installation of the handle 131. The bracket 122 is generally Ω-shaped, and the locking bar 121 extends through the bracket 122 along the width direction D2 of the container and is rotatable about axis E. The bushing 124 is disposed between the locking bar 121 and the bracket 122 to prevent friction between the locking bar 121 and the bracket 122 during rotation.

[0072] The locking bar assembly preferably includes multiple fixing plates 123, brackets 122, and bushings 124, and the bottom lock preferably includes multiple locking hook assemblies. More preferably, the multiple brackets 122 and the multiple locking hook assemblies are spaced apart along the width direction D2 of the container.

[0073] Preferably, such as Figure 4 As shown, the handle 131 and the locking rod 121 are connected by a flat key 125. The handle 131 has a threaded hole 140, through which a screw passes and abuts against the flat key 125 to prevent the handle 131 from slipping out. It should be noted that the handle 131 and the locking rod 121 can also be detachably connected by a cotter pin, bolt, etc., but this application does not limit this.

[0074] Preferably, such as Figure 6 As shown, the handle 131 is configured to have a downward bend in the vertical plane, thereby giving the handle 131 more room to rotate upward.

[0075] Preferably, one end of the locking rod 121 extends through the bottom side beam 70 of the container, and the handle 131 is located on the outside of the bottom side beam 70. The locking rod 121 and the handle 131 are connected in an L-shape. Therefore, personnel can operate the opening and locking of the top-hinged door from the side of the container, which is safer.

[0076] Optionally, refer to Figure 2 as well as Figures 6 to 8 The handle 131 has a protrusion 132 extending outward along the width direction D2 of the container, and the protrusion 132 has a first through hole 133. The handle assembly also includes a locking mechanism for fixing the position of the handle 131 such that the locking hook 111 is in the locked position of locking the door panel 10.

[0077] Specifically, the locking mechanism includes a fixed base 135, a side plate 136, a pin 134, and a limiting plate 137. The fixed base 135 is fixedly connected to the lower surface of the upper edge of the bottom side beam 70. The side plate 136 is fixedly connected to the bottom side beam 70 at a position above the handle 131, and has a second through hole 138. For example, the side plate 136 is approximately at the same height as the fixed base 135, and the second through hole 138 is approximately horizontal. The pin 134 is movably connected to the fixed base 135 by a chain to prevent loss. The limiting plate 137 is pivotally connected to the fixed base 135 about an axis along the width direction D2 of the container, and its lower end has a third through hole 139. The limiting plate 137 is located outside the handle 131. The limiting plate 137 is configured to pivot to align with the first through hole 133 and the third through hole 139, with the pin 134 passing through the first through hole 133 and the third through hole 139, thereby preventing the handle 131 from rotating upward. The limiting plate 137 is also configured to pivot to align with the second through hole 138 and the third through hole 139, with the pin 134 passing through the second through hole 138 and the third through hole 139, thereby releasing the limitation of the limiting plate 137 on the upward rotation of the handle 131. For example, when the handle 131 is in the position to lock the door panel 10, the first through hole 133 of the protrusion 132 is provided in the vertical direction, and the lower end of the limiting plate 137 is provided with a connecting part extending outward along the width direction D2 of the container. A third through hole 139 is provided on the connecting part along the length direction of the limiting plate 137. When the limiting plate 137 is pivoted to the vertical direction, the first through hole 133 and the third through hole 139 are aligned.

[0078] Preferably, such as Figure 6 and Figure 8 As shown, the handle assembly also includes a generally L-shaped latch 141, which is connected to the bottom side beam 70 and is pivotable in a vertical plane. When the handle 131 is in the unlocked position, the latch 141 is pivoted to prevent the handle 131 from rotating downward, thereby maintaining the unlocked position of the door panel 10.

[0079] Preferably, such as Figure 8 As shown, the lock hook baffle 112 has a bent structure for avoiding the rubber strip at the lower end of the door panel 10.

[0080] like Figure 1 and Figure 6 As shown, the top-hinged door also includes a hinge 40. One end of the hinge 40 is connected to the door panel 10, and the other end of the hinge 40 is connected to the back beam 50 of the end face of the container. Therefore, the connection between the door panel 10 and the container body has high strength. At the same time, the hinge plate of the hinge 40 is designed with a bent structure to avoid the rubber strip.

[0081] Preferably, such as Figure 1 and Figure 8 As shown, the upward-opening door also includes a limiting member 20, the upper end of which is fixedly connected (e.g., welded) to the lower end of the door panel 10. The lower end of the limiting member 20 is configured to contact the sill 60 of the container when the door panel 10 is in the just-closed position, to prevent the door panel 10 from being over-closed.

[0082] A second aspect of this application provides a container, which includes the aforementioned upward-opening door structure. For example... Figure 8 As shown, the upper edge of the bottom side beam 70 of the container has a notch 80, which is configured to allow the handle 131 to rotate upward until the tail of the handle 131 extends beyond the upper edge, thereby increasing the rotation space of the handle 131.

[0083] like Figure 1 and Figure 6 As shown, the container also includes protective panels 90, which are connected to the lower part of the container's sill 60 and bottom side beam 70. For example, the protective panel 90 is triangular, with two sides of the triangle connected to the lower part of the sill 60 and bottom side beam 70 respectively, and one protective panel 90 connected to each end of the sill. Thus, when the container's bottom corner fittings are connected to the transport vehicle, the protective panels 90 can protect the locking rod 121 from damage due to impact.

[0084] The container also includes a rotating member 30 pivotally connected to the corner post 100 of the container between a first position and a second position. The rotating member 30 in the first position is located to the side of the upward-opening door (to the side along the width direction D2 of the container) to allow the door panel to open normally, while the rotating member 30 in the second position prevents the door panel 10 from opening. Figure 1 The rotating member 30 shown is in the second position.

[0085] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this application. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0086] This application has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This application is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this application, and all such variations and modifications fall within the scope of protection claimed in this application.

Claims

1. A container top-opening door structure, characterized in that, The upward-opening door structure includes: The upward-opening door includes: A door panel, the top of which is pivotally connected to the container body; a bottom lock for locking or unlocking the door panel, the bottom lock comprising: A locking hook assembly, comprising a locking hook and a locking hook baffle, wherein the locking hook baffle is fixedly connected to the lower end of the door panel, and the locking hook cooperates with the locking hook baffle to lock or unlock the door panel; A locking bar assembly includes a locking bar detachably connected to the inside of the sill of the container and rotatable about its axis. The locking bar passes through one end of a locking hook, and the locking bar and one end of the locking hook are connected by a connecting member that passes through the locking bar and the locking hook, allowing the locking hook to rotate with the locking bar. The tail end of the connection between the locking hook and the locking bar has an opening, and the opening is fastened by bolts to secure the locking hook to the locking bar. A handle assembly including a handle detachably and drively connected to the locking bar, the handle being used to actuate the locking bar to rotate, one end of the locking bar extending through the bottom side beam of the container, the handle being located on the outside of the bottom side beam.

2. The upward-opening door structure according to claim 1, characterized in that, The locking lever assembly also includes: A fixing plate, the fixing plate being fixed to the inside of the threshold; A bracket, detachably connected to the fixing plate, wherein the locking bar extends through the bracket along the width direction of the container; A bushing is disposed between the locking rod and the bracket.

3. The upward-opening door structure according to claim 1, characterized in that, The locking bar and the handle are connected in an L-shape.

4. The upward-opening door structure according to claim 1, characterized in that, The handle and the locking rod are connected by a flat key. The handle has a threaded hole through which a screw passes and abuts against the flat key.

5. The upward-opening door structure according to claim 3, characterized in that, The handle has an outwardly projecting portion along the width direction of the container, the projecting portion having a first through hole. The handle assembly further includes a locking mechanism for fixing the position of the handle such that the locking hook is in a position where it locks the door panel. The locking mechanism includes: A fixing seat, which is fixedly connected to the lower surface of the upper edge of the bottom side beam; A side plate, which is fixedly connected to the bottom side beam at a position higher than the handle, and the side plate has a second through hole; A pin, which is movably connected to the fixed base via a chain; A limiting plate, pivotally connected to the fixed base about an axis along the width direction of the container, the lower end of the limiting plate having a third through hole, the limiting plate being pivotable to align with the first through hole and the third through hole, a pin passing through the first through hole and the third through hole, and the limiting plate being pivotable to align with the second through hole and the third through hole, the pin passing through the second through hole and the third through hole.

6. The upward-opening door structure according to claim 1, characterized in that, The locking hook baffle has a bent structure for avoiding the rubber strip at the lower end of the door panel.

7. The upward-opening door structure according to claim 1, characterized in that, The upward-opening door also includes a hinge, one end of which is connected to the door panel, and the other end of which is connected to the back beam of the end face of the container.

8. The upward-opening door structure according to claim 1, characterized in that, The upward-opening door also includes a limiting member, the upper end of which is fixedly connected to the lower end of the door panel, and the lower end of which is configured to contact the threshold of the container when the door panel is in the closed position.

9. A container, characterized in that, The container includes an upward-opening door structure according to any one of claims 1-8.

10. The container according to claim 9, characterized in that, The upper edge of the bottom side beam of the container has a notch, which is configured to allow the handle to rotate upward until the tail of the handle extends beyond the upper edge.

11. The container according to claim 9, characterized in that, The container also includes a protective panel that is connected to the lower part of the container's threshold and bottom side beam.

12. The container according to claim 9, characterized in that, The container also includes a rotating member pivotally connected to a corner post of the container between a first position and a second position, wherein the rotating member in the first position is located to the side of the upward-opening door to allow the door panel to open normally, and the rotating member in the second position prevents the door panel from opening.

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