A double door structure of an assembled cargo compartment

Abstract

This utility model discloses a double-door structure for an assembled cargo box, including a cargo box body and doors. One end of the cargo box body has a first opening, and the two ends of the first opening are respectively hinged to the doors. The two doors rotate to cooperate with each other to close the cargo box body. Each door is equipped with a connecting component, and both sides of the cargo box body are equipped with limiting components. The doors can rotate to open the first opening, and the connecting components can rotate to engage with the limiting components. This utility model achieves stable transmission cooperation between the connecting components and the limiting components, thereby limiting the installation of the connecting components and preventing accidental rotation of the doors under external force, thus ensuring the safety of loading and unloading operations.

Description

Technical Field

[0001] This utility model relates to the field of cargo box technology, and in particular to a double-door structure for an assembled cargo box. Background Technology

[0002] As an important land transportation tool, van trucks have many advantages such as high work efficiency and large cargo transport capacity. The main transportation method of van trucks is to place the goods in the cargo box. In order to prevent the goods from moving out of the cargo box, the cargo box needs to be closed after loading. A double door structure is commonly used to close the cargo box.

[0003] Existing double-door cargo box structures can only limit the doors when they are closed, but cannot limit them when they are open. As a result, when the doors are opened to unload goods, they may be affected by external forces and rotate, which will affect the loading and unloading of goods and also pose a safety hazard to the loading and unloading personnel. Utility Model Content

[0004] (a) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a double-door structure for assembled cargo boxes. When the doors are opened for loading and unloading operations, the connecting components and the limiting components form a stable transmission cooperation, thereby completing the installation limiting of the connecting components and preventing the doors from rotating unexpectedly under external force. This ensures the safety of loading and unloading operations, avoids safety hazards caused by door movement, and improves loading and unloading efficiency.

[0006] (II) Technical Solution

[0007] This utility model provides a double-door structure for an assembled cargo box, including a cargo box body and doors. One end of the cargo box body is provided with a first opening, and the two ends of the first opening are respectively hinged to the doors. The two doors can be rotated to cooperate with each other to close the cargo box body. The doors are provided with connecting components, and the two sides of the cargo box body are provided with limiting components. The doors can be rotated to open the first opening, and the connecting components can be rotated to engage with the limiting components.

[0008] Preferably, the connecting assembly includes a first mounting block and a rotating plate. The first mounting block is connected to the door. The first mounting block has a first notch. The rotating plate is rotatably disposed within the first notch. The door has a second mounting block. The second mounting block is spaced apart from the first mounting block and has a second notch for accommodating the rotating plate. The second mounting block has a limiting unit for limiting the rotation plate.

[0009] Preferably, the limiting unit includes a limiting block and a limiting plate. The upper end of the second mounting block is provided with a first through hole communicating with the second notch. The limiting block is slidably disposed in the first through hole. The limiting plate is connected to the upper end of the limiting block and fits against the upper end of the second mounting block. The rotating plate can rotate into the second notch and fits against the inner wall of the second notch. The limiting block can move to fit against the end of the rotating plate away from the inner wall of the second notch.

[0010] Preferably, the limiting component includes a third mounting block, which is connected to the side end of the cargo box body. The third mounting block has a third notch, and the rotating plate can be rotatably extended into the third notch. The third mounting block has a fixing unit for fixing the rotating plate and a positioning unit for positioning the rotating plate.

[0011] Preferably, the fixing unit includes a fixing plate, a locking block, and a threaded rod. The fixing plate is connected to the side end of the cargo box body and is located above the third mounting block. The third mounting block has a second through hole that communicates with the third notch. The fixing plate has a first threaded through hole. The locking block is slidably disposed in the second through hole. The locking block can be moved to extend into the third notch and abut against the rotating plate. The threaded rod is threadedly disposed in the first threaded through hole. One end of the threaded rod is coaxially provided with a first handle, and the other end of the threaded rod is rotatably connected to the locking block.

[0012] Preferably, the positioning unit includes a connecting plate, a spring, and a positioning block. The connecting plate is connected to the side end of the cargo box body and is located below the third mounting block. The bottom end of the third mounting block is provided with a third through hole communicating with the third notch. The positioning block is slidably disposed in the third notch. The positioning block is provided with an inclined surface facing the opening direction of the third notch. The inclined surface is inclined from top to bottom towards the opening direction of the third notch. The spring is vertically disposed, and its two ends are respectively connected to the positioning block and the connecting plate. The rotating plate can be rotated to abut against the inclined surface, and the upper end of the positioning block can be moved to abut against the bottom end of the rotating plate.

[0013] Preferably, the assembly further includes a movable plate, a fixed block, a limiting rod, and a screw. The movable plate is connected to the side end of the cargo box body. The end of the movable plate away from the cargo box body is connected to the third mounting block, the fixed plate, and the connecting plate, respectively. Two fixed blocks are spaced apart on both sides of the movable plate and are both connected to the cargo box body. A horizontally arranged screw is rotatably provided between the two fixed blocks. Two horizontal limiting rods are spaced vertically between the two fixed blocks and are located on the upper and lower sides of the screw, respectively. The movable plate has a second threaded through hole for the screw to pass through and two first openings for the two limiting rods to pass through, respectively. The movable plate is threadedly connected to the screw and slidably connected to the limiting rods. One of the fixed blocks has a second opening for the screw to pass through, and one end of the screw passes through the second opening and is coaxially provided with a second handle.

[0014] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0015] In this invention, the cargo compartment is opened by rotating the door when needed. After the cargo compartment is opened, the cooperation structure of the connecting component and the limiting component solves the problem that the door cannot be limited when it is open in the prior art. When the door is open for loading and unloading operations, the connecting component and the limiting component form a stable transmission cooperation, thereby completing the installation limit of the connecting component. This prevents the door from rotating unexpectedly under the action of external force, thus ensuring the safety of loading and unloading operations, avoiding safety hazards caused by door movement, and improving loading and unloading efficiency. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a double-door structure for an assembled cargo box proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the closed state of a double-door structure for an assembled cargo box proposed in this utility model.

[0018] Figure 3 This is a partially enlarged structural diagram of point A in the double-door structure of the assembled cargo box proposed in this utility model.

[0019] Figure 4 This is a partially enlarged structural diagram of point B in the double-door structure of the assembled cargo box proposed in this utility model.

[0020] Reference numerals in the attached drawings: 1. Cargo box body; 2. Cargo door; 3. First mounting block; 4. Rotating plate; 5. Second mounting block; 6. Limiting block; 7. Limiting plate; 8. Third mounting block; 9. Fixing plate; 10. Locking block; 11. Threaded rod; 12. Connecting plate; 13. Spring; 14. Positioning block; 15. Moving plate; 16. Fixing block; 17. Limiting rod; 18. Screw. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1-4 As shown, the present invention proposes a double-door structure for a modular cargo box, including a cargo box body 1 and doors 2. One end of the cargo box body 1 is provided with a first opening, and the two ends of the first opening are respectively hinged to doors 2. The two doors 2 can be rotated to cooperate with each other to close the cargo box body 1. The doors 2 are provided with connecting components, and the two sides of the cargo box body 1 are provided with limiting components. The doors 2 can be rotated to open the first opening, and the connecting components can be rotated to cooperate with the limiting components.

[0025] In this utility model: when needed, the cargo compartment is opened by rotating the door 2. After the cargo compartment is opened, the cooperation structure of the connecting component and the limiting component solves the problem that the door 2 cannot be limited when it is open in the prior art. When the door 2 is opened for loading and unloading operations, the connecting component and the limiting component form a stable transmission cooperation, thereby completing the installation limit of the connecting component, thus preventing the door 2 from rotating unexpectedly under the action of external force, thereby ensuring the safety of loading and unloading operations, avoiding safety hazards caused by the movement of the door 2, and improving loading and unloading efficiency.

[0026] Furthermore, this application also proposes that the connecting assembly includes a first mounting block 3 and a rotating plate 4. The first mounting block 3 is connected to the door 2. The first mounting block 3 is provided with a first notch. The rotating plate 4 is rotatably disposed in the first notch. The door 2 is provided with a second mounting block 5. The second mounting block 5 is spaced apart from the first mounting block 3 and is provided with a second notch for accommodating the rotating plate 4. The second mounting block 5 is provided with a limiting unit for limiting the rotation plate 4.

[0027] By rotating the rotating plate 4 into the second notch and limiting it through the limiting unit, the rotating plate 4 can be effectively limited when it is not needed. For example, when the door 2 closes the first opening, the rotating plate 4 can be limited to prevent it from rotating.

[0028] Furthermore, this application also proposes that the limiting unit includes a limiting block 6 and a limiting plate 7. The upper end of the second mounting block 5 is provided with a first through hole that communicates with the second notch. The limiting block 6 is slidably disposed in the first through hole. The limiting plate 7 is connected to the upper end of the limiting block 6 and fits against the upper end of the second mounting block 5. The rotating plate 4 can be rotated into the second notch and fits against the inner wall of the second notch. The limiting block 6 can be moved to fit against the end of the rotating plate 4 away from the inner wall of the second notch.

[0029] When in use, after rotating the rotating plate 4 into the second notch, the rotating plate 4 is made to fit against the inner wall of the second notch, so that the limiting block 6 can be inserted into the first through hole to cooperate with the inner wall of the second notch to limit the rotating plate 4. And by moving the limiting plate 7, the limiting block 6 can be easily moved.

[0030] Furthermore, this application also proposes that the limiting component includes a third mounting block 8, which is connected to the side end of the cargo box body 1. The third mounting block 8 is provided with a third notch, and the rotating plate 4 can be rotatably extended into the third notch. The third mounting block 8 is provided with a fixing unit for fixing the rotating plate 4 and a positioning unit for positioning the rotating plate 4.

[0031] Specifically, the fixing unit can be implemented in the following way: the fixing plate 9 is connected to the side end of the cargo box body 1 and is located above the third mounting block 8. The third mounting block 8 is provided with a second through hole that communicates with the third notch. The fixing plate 9 is provided with a first threaded through hole. The locking block 10 is slidably disposed in the second through hole. The locking block 10 can be moved to extend into the third notch and abut against the rotating plate 4. The threaded rod 11 is threadedly disposed in the first threaded through hole. One end of the threaded rod 11 is coaxially provided with a first handle. The other end of the threaded rod 11 is rotatably connected to the locking block 10. The positioning unit can be implemented in the following way: the connecting plate 12 is connected to the side end of the cargo box body 1, the connecting plate 12 is located below the third mounting block 8, the bottom end of the third mounting block 8 is provided with a third through hole that communicates with the third notch, the positioning block 14 is slidably disposed in the third notch, the positioning block 14 is provided with an inclined surface facing the opening direction of the third notch, the inclined surface is inclined from top to bottom towards the opening direction of the third notch, the spring 13 is vertically disposed, its two ends are respectively connected to the positioning block 14 and the connecting plate 12, the rotating plate 4 can be rotated to abut against the inclined surface, and the upper end of the positioning block 14 can be moved to abut against the bottom end of the rotating plate 4.

[0032] When the door 2 is opened, the rotating plate 4 rotates and extends into the third notch. Rotating the first handle drives the threaded rod 11 to rotate, causing the locking block 10 to move and abut against the rotating plate 4, thus fixing the rotating plate 4. Simultaneously, the rotating plate 4 contacts the inclined surface of the positioning block 14 and pushes the positioning block 14 downwards. When the rotating plate 4 is fully inserted into the third notch, the positioning block 14 moves upwards under the action of the spring 13 and abuts against the bottom end of the rotating plate 4, thus positioning the rotating plate 4. Compared with existing technologies, this solution effectively solves the problem of the door 2 not being able to be limited when opened, improving the safety and convenience of loading and unloading goods.

[0033] Furthermore, this application also proposes that the movable plate 15 is connected to the side end of the cargo box body 1, and the end of the movable plate 15 away from the cargo box body 1 is connected to the third mounting block 8, the fixing plate 9 and the connecting plate 12 respectively. Two fixing blocks 16 are spaced apart on both sides of the movable plate 15 and are both connected to the cargo box body 1. A horizontally arranged screw 18 is rotatably provided between the two fixing blocks 16. Two horizontal limiting rods 17 are spaced vertically between the two fixing blocks 16. The two limiting rods 17 are located on the upper and lower sides of the screw 18 respectively. The movable plate 15 is provided with a second threaded through hole for the screw 18 to pass through and two first openings for the two limiting rods 17 to pass through respectively. The movable plate 15 is threadedly connected to the screw 18 and slidably connected to the limiting rods 17. One of the fixing blocks 16 is provided with a second opening for the screw 18 to pass through. One end of the screw 18 passes through the second opening and is coaxially provided with a second handle.

[0034] Specifically, the movable plate 15 moves horizontally through the cooperation of the screw 18 and the limiting rod 17. The rotation of the screw 18 causes the movable plate 15 to slide along the limiting rod 17, thereby adjusting the position of the movable plate 15. The fixing block 16 supports the screw 18 and the limiting rod 17 to ensure the stability of the movement of the movable plate 15. The second handle facilitates manual operation of the screw 18. The movement of the movable plate 15 can effectively drive the third mounting block 8, the fixing plate 9, and the connecting plate 12 to move, thereby effectively changing the position of the rotating plate 4 extending into the third notch. This allows the plate to still extend into the third notch when the door 2 is rotated to different angles, thus ensuring that the door 2 is still limited when rotated to different angles.

[0035] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A double-door structure for an assembled cargo box, characterized in that, The container includes a cargo box body and doors. One end of the cargo box body is provided with a first opening, and the two ends of the first opening are respectively hinged to the doors. The two doors can be rotated to cooperate with each other to close the cargo box body. The doors are provided with connecting components, and the two sides of the cargo box body are provided with limiting components. The doors can be rotated to open the first opening, and the connecting components can be rotated to engage with the limiting components.

2. The double-door structure of the assembled cargo box according to claim 1, characterized in that, The connecting assembly includes a first mounting block and a rotating plate. The first mounting block is connected to the compartment door. The first mounting block has a first notch. The rotating plate is rotatably disposed within the first notch. The compartment door has a second mounting block. The second mounting block is spaced apart from the first mounting block. The second mounting block has a second notch for accommodating the rotating plate. The second mounting block has a limiting unit for limiting the rotation plate.

3. The double-door structure of an assembled cargo box according to claim 2, characterized in that, The limiting unit includes a limiting block and a limiting plate. The upper end of the second mounting block is provided with a first through hole that communicates with the second notch. The limiting block is slidably disposed in the first through hole. The limiting plate is connected to the upper end of the limiting block and fits against the upper end of the second mounting block. The rotating plate can rotate into the second notch and fits against the inner wall of the second notch. The limiting block can move to fit against the end of the rotating plate away from the inner wall of the second notch.

4. The double-door structure of an assembled cargo box according to claim 2, characterized in that, The limiting component includes a third mounting block, which is connected to the side end of the cargo box body. The third mounting block has a third notch, and the rotating plate can be rotatably extended into the third notch. The third mounting block has a fixing unit for fixing the rotating plate and a positioning unit for positioning the rotating plate.

5. The double-door structure of an assembled cargo box according to claim 4, characterized in that, The fixing unit includes a fixing plate, a locking block, and a threaded rod. The fixing plate is connected to the side end of the cargo box body and is located above the third mounting block. The third mounting block has a second through hole that communicates with the third notch. The fixing plate has a first threaded through hole. The locking block is slidably disposed in the second through hole. The locking block can be moved to extend into the third notch and abut against the rotating plate. The threaded rod is threadedly disposed in the first threaded through hole. One end of the threaded rod is coaxially provided with a first handle, and the other end of the threaded rod is rotatably connected to the locking block.

6. The double-door structure of an assembled cargo box according to claim 4, characterized in that, The positioning unit includes a connecting plate, a spring, and a positioning block. The connecting plate is connected to the side end of the cargo box body and is located below the third mounting block. The bottom end of the third mounting block is provided with a third through hole communicating with the third notch. The positioning block is slidably disposed in the third notch. The positioning block is provided with an inclined surface facing the opening direction of the third notch. The inclined surface is inclined from top to bottom towards the opening direction of the third notch. The spring is vertically disposed, and its two ends are respectively connected to the positioning block and the connecting plate. The rotating plate can be rotated to abut against the inclined surface, and the upper end of the positioning block can be moved to abut against the bottom end of the rotating plate.

7. The double-door structure of an assembled cargo box according to claim 4, characterized in that, It also includes a movable plate, a fixed block, a limiting rod, and a screw. The movable plate is connected to the side end of the cargo box body. The end of the movable plate away from the cargo box body is connected to the third mounting block, the fixed plate, and the connecting plate, respectively. Two fixed blocks are spaced apart on both sides of the movable plate and are both connected to the cargo box body. A horizontally arranged screw is rotatably provided between the two fixed blocks. Two horizontal limiting rods are spaced vertically between the two fixed blocks and are located on the upper and lower sides of the screw, respectively. The movable plate has a second threaded through hole for the screw to pass through and two first openings for the two limiting rods to pass through, respectively. The movable plate is threadedly connected to the screw and slidably connected to the limiting rod. One of the fixed blocks has a second opening for the screw to pass through. One end of the screw passes through the second opening and is coaxially provided with a second handle.

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