Hydraulic opening and closing structure of container tail rear door

Abstract

The utility model discloses a container tail rear door hydraulic opening and closing structure which comprises a vehicle plate, a container body fixedly installed on the vehicle plate, a door frame body and a door body, wherein the door frame body and the door body are arranged on the rear portion in the container body. Corner pieces are symmetrically fixed to the rear side of the outer end of the container body, an upper cross beam and a lower cross beam are fixedly connected to the inner sides of the upper end and the lower end of each corner piece, and side stand columns are symmetrically fixed to the inner sides of the left end and the right end of each corner piece. The door frame body is fixedly connected to the rear portion of the upper cross beam through hinges, symmetrical door bodies are connected into the door frame body through hinges, and connection limiting structures are arranged on the door frame body and the door bodies. According to the container tail rear door hydraulic opening and closing structure, the connecting quality of the opening and closing structure can be guaranteed conveniently, the problem that manual double-door opening and closing are tedious in use at the present stage is solved conveniently, the 270-degree unchanged mode of an original lock lever switch is reserved, the intelligent overall upturning 90-degree opening and closing structure is improved, safe application is met, labor is saved, and efficiency and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent opening technology for the rear door of a transport container, specifically a hydraulic opening and closing structure for the rear door of a container. Background Technology

[0002] Specialization of transportation vehicles is changing the transportation industry; it is an important link in the improvement of intelligent standards of the system, and also an important safety guarantee for the marketization of my country's circulation. With the increase in my country's circulation volume, road transportation for domestic energy circulation and import diversion has become an influence. The intelligentization of the material circulation transportation system has become a major monitoring factor. At present, vehicles are used extensively in the transportation process so that materials can be transported in a closed manner through containers behind the vehicles.

[0003] However, existing container rear doors still have some problems during use. For example, container rear doors usually use traditional lock bar type left and right opening and closing, which requires the driver to get out of the vehicle to unlock the lock bar when loading and unloading, which is cumbersome. In addition, materials are easy to fall off and hit people when opening the door, and there are situations where the driver cannot get out of the vehicle to open the door due to site safety restrictions. Therefore, we propose a hydraulic opening and closing structure for container rear doors to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic opening and closing structure for the rear door of a container, in order to solve some problems that still exist in the use of the existing container rear doors mentioned in the background art. For example, the container rear door usually adopts a traditional lock bar type left and right switch, which requires the driver to get out of the vehicle to unlock the lock bar when loading and unloading, which is cumbersome. In addition, materials are easy to fall off and hit people when the door is opened, as well as the problem that the driver cannot get out of the vehicle to open the door due to site safety restrictions.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic opening and closing structure for the rear door of a container, comprising: a vehicle platform, a container body fixedly installed on the vehicle platform, and a door frame and door body disposed at the rear of the container body;

[0006] Also includes:

[0007] The outer rear side of the container body is symmetrically fixed with corner pieces, and the upper and lower ends of the corner piece are respectively fixedly connected with the upper and lower crossbeams, and the left and right ends of the corner piece are symmetrically fixed with side columns.

[0008] The door frame is fixedly connected to the upper beam by hinges, and symmetrical door bodies are connected to the door frame by hinges. The door frame and the door bodies are provided with a connection limiting structure, which includes a limit rod, a limit block, a movable part and a fixed part.

[0009] The container body and the door frame are provided with an intelligent opening and closing structure on the inner sides of the upper and lower ends. The intelligent opening and closing structure includes a first mounting base, a first hydraulic cylinder, a second mounting base, a second hydraulic cylinder, a support arm, and a hook with a shaft lock. The first mounting base is fixedly connected to the lower side of the upper rear end of the container body and the front side of the outer end of the door frame. The first hydraulic cylinder is rotatably connected to the inner side of the first mounting base.

[0010] Preferably, the upper crossbeam, lower crossbeam, and side columns are located on the rear side of the container body, and the corner pieces, upper crossbeam, lower crossbeam, and side columns are welded as a single integrated structure, and the combination of the corner pieces, upper crossbeam, lower crossbeam, and side columns has a rectangular shape on both the inner and outer sides.

[0011] Preferably, the door frame is attached to the rear side of the upper crossbeam, lower crossbeam and side column, and the upper and lower rear ends of the door frame are symmetrically fixed with limiting blocks, and the limiting blocks are fitted with limiting rods.

[0012] Preferably, the limiting rod is located on the rear side of the door body, and the limiting rod is fixed to the door body by a clamp and screws. A movable part is fixedly connected to the lower outer side of the limiting rod, and a fixing part that is fixed to the door body by screws is snapped onto the middle outer side of the movable part.

[0013] Preferably, the second mounting base is fixedly connected to the inner side of the lower end of the container body, and a second hydraulic cylinder, a support arm and a shaft locking hook are sequentially arranged behind the second mounting base, and the second mounting base is rotatably connected to the support arm.

[0014] Preferably, the rear end of the support arm is rotatably connected to the inner side of the lower rear end of the container body, and the outer side of the rear end of the support arm is fixedly connected to a shaft-mounted locking hook that is fitted to the door frame body.

[0015] Preferably, the container body, upper crossbeam, lower crossbeam and side columns are provided with reinforcing ribs that are fixedly connected to them, and the reinforcing ribs are composed of rib plates and rib blocks that are symmetrically fixed within the rib plates.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the hydraulic opening and closing structure of the rear door of the container makes it easier to ensure the connection quality of the opening and closing structure, and solves the problem of the cumbersome use of manual double door opening and closing at the current stage. While retaining the original 270° locking bar switch, the intelligent overall flip-up 90° switching structure is improved to meet safety requirements, save labor and improve efficiency and safety.

[0017] 1. The structure is equipped with a platform, a container body, corner fittings, and an upper crossbeam. The container body is fixedly installed on the platform, and the corner fittings are symmetrically fixed to the rear outer end of the container body. The corner fittings are integrally welded to the upper crossbeam, lower crossbeam, and side columns. The container body, upper crossbeam, lower crossbeam, and side columns are equipped with reinforcing ribs that are fixedly connected to them. The reinforcing ribs are composed of rib plates and rib blocks that are symmetrically fixed within the rib plates. Therefore, it is easy to ensure the connection quality of the opening and closing structure.

[0018] 2. It is equipped with a container body, a door frame, a door, and a limit bar. Since the door frame is set on the rear side of the container body, the door body is hinged to symmetrical doors. The limit bar is defined by the clamp and screws at the rear of the door. The upper and lower ends of the limit bar are respectively connected to the limit block fixed to the rear of the door frame. The lower right end of the limit bar is fixedly connected to a movable part. The movable part is fastened to a fastener that is fixed to the door screw. Therefore, it is easy to retain the original 270° lock bar switch method.

[0019] 3. The system includes a door frame, a first mounting base, a first hydraulic cylinder, and a second mounting base. Since the door frame is fixedly connected to the upper crossbeam via hinges, the first mounting base is fixedly connected to the lower rear end of the container body and the front outer end of the door frame. The first mounting base has a first hydraulic cylinder rotatably connected to it on its inner side. The lower rear end of the container body has a second mounting base fixedly connected to it, and the second mounting base is rotatably connected to the second hydraulic cylinder. The second hydraulic cylinder is rotatably connected to a support arm that rotates with the container body. A locking hook with a shaft that snaps into the door frame is fixedly connected to the outside of the support arm. This allows the switch structure to intelligently flip upwards by 90°, meeting safety requirements, saving labor, and improving efficiency and safety. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a side view sectional structural diagram of the present invention;

[0022] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 This is a front view schematic diagram of the connection between the corner piece and the side column of this utility model;

[0024] Figure 5 This is a front view structural diagram of the reinforcing rib of this utility model.

[0025] In the diagram: 1. Platform; 2. Container body; 3. Corner piece; 4. Upper crossbeam; 5. Lower crossbeam; 6. Side column; 7. Door frame; 8. Door body; 9. Limiting rod; 10. Limiting block; 11. Movable part; 12. Fixing part; 13. First mounting seat; 14. First hydraulic cylinder; 15. Second mounting seat; 16. Second hydraulic cylinder; 17. Support arm; 18. Hook with shaft lock; 19. Reinforcing rib; 20. Rib plate; 21. Rib block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a hydraulic opening and closing structure for the rear door of a container, including a platform 1, a container body 2, corner pieces 3, an upper crossbeam 4, a lower crossbeam 5, side columns 6, a door frame 7, a door body 8, a limiting rod 9, a limiting block 10, a movable part 11, a fixing part 12, a first mounting seat 13, a first hydraulic cylinder 14, a second mounting seat 15, a second hydraulic cylinder 16, a support arm 17, a hook with a shaft lock 18, a reinforcing rib 19, a rib plate 20, and a rib block 21. The container body 2 and the door frame 7 and door body 8 are fixedly installed on the platform 1 and located at the rear of the container body 2. Corner pieces 3 are symmetrically fixed to the rear outer end of the container body 2, and the upper and lower ends of each corner piece 3 are respectively fixedly connected to the inner sides of the upper and lower crossbeams 4 and 5. Side columns 6 are symmetrically fixed on the inner sides of both ends. The door frame 7 is fixedly connected to the upper crossbeam 4 via hinges. The door frame 7 is hinged to symmetrical door bodies 8. The door frame 7 and door bodies 8 are provided with a connection limiting structure, which includes a limit rod 9, a limit block 10, a movable part 11, and a fixing part 12. The upper and lower inner sides of the container body 2 and the door frame 7 are provided with an intelligent opening and closing structure, which includes a first mounting base 13, a first hydraulic cylinder 14, a second mounting base 15, a second hydraulic cylinder 16, a support arm 17, and a hook with a shaft lock 18. The first mounting base 13 is fixedly connected to the lower side of the upper rear end of the container body 2 and the front side of the outer end of the door frame 7. The first hydraulic cylinder 14 is rotatably connected to the inner side of the first mounting base 13. Specific Implementation Example 1

[0028] To address the problem of ensuring the connection quality of the opening and closing structure in existing technologies, this embodiment employs the following technical solution: Figure 1 , Figure 2 , Figure 4 and Figure 5 A container body 2 is installed on the vehicle platform 1 and fixed thereto. Corner pieces 3 are symmetrically fixed to the rear side of the outer end of the container body 2. The upper and lower ends of the corner pieces 3 are welded and fixed to the inner sides of the upper and lower ends. Side columns 6 are symmetrically fixed to the left and right sides of the corner pieces 3. The container body 2, corner pieces 3, upper crossbeam 4, lower crossbeam 5 and side columns 6 form an integrated structure. Reinforcing ribs 19 are fixedly connected inside the container body 2, upper crossbeam 4, lower crossbeam 5 and side columns 6. The reinforcing ribs 19 are composed of rib plates 20 and rib blocks 21 symmetrically fixed to the inner side of the lower outer end of the rib plates 20. The lower rear hinge of the upper crossbeam 4 is connected to a fixed door frame body 7. Therefore, with the setting of corner pieces 3, upper crossbeam 4, lower crossbeam 5, side columns 6 and support arms 17, the connection quality of the opening and closing structure can be guaranteed. Specific Implementation Example 2

[0029] To address the problems in existing technologies where container rear doors typically use traditional lock-bar type left and right switches, requiring the driver to get out of the vehicle to unlock the bars for loading and unloading, which is cumbersome, and materials can easily fall and injure people when the door is opened, as well as situations where site safety restrictions prevent getting out of the vehicle to open the door, this embodiment adopts the following technical solution, such as... Figure 1 During the use of this opening and closing structure, the operator can use the traditional opening and closing method. For example, first disconnect the buckle between the movable part 11 and the fixed part 12 on the outside of the door body 8, and then the movable part 11 can drive the door body 8 to rotate the limit rod 9 limited by the rear clamp and screws. Disconnect the buckle between the limit rod 9 and the limit block 10 fixed on the rear side of the upper and lower ends of the door frame 7. Finally, the door body 8 can be rotated outward to achieve the purpose of opening and closing 270°. When it is necessary to close, the door body 8 can be rotated into the door frame 7, and then the movable part 11 can be held by hand to make it buckle in the fixed part 12, so that the outer end of the limit rod 9 is buckled and connected with the limit block 10 to achieve the purpose of closing. This makes it easy to retain the original 270° lock bar switch method.

[0030] like Figure 1 , Figure 3 and Figure 4The operator can connect the first hydraulic cylinder 14 and the second hydraulic cylinder 16 located on the inner rear side of the container body 2 via a solenoid valve intelligent control pipeline from the cab. The first hydraulic cylinder 14 has a first mounting seat 13 rotatably connected to its outer ends at both the front and rear ends. Each first mounting seat 13 is individually fixedly connected to the lower rear end of the container body 2 and the front outer end of the door frame 7. The upper end of the door frame 7 is fixedly connected to the upper crossbeam 4 via a hinge. The second hydraulic cylinder 16 has a second mounting seat 15 rotatably connected to its front and rear ends, and a support arm 17. The second mounting seat 15 is fixedly connected to the inner rear lower end of the container body 2, and the rear end of the support arm 17 is rotatably connected to the container body 2. The inner rear lower end of the container body 2 is provided with a support arm 17 that is fixedly connected to the support arm 17. The shaft-mounted locking hook 18, through the operation of the second hydraulic cylinder 16, facilitates the second hydraulic cylinder 16 to drive the support arm 17 to rotate under the limit of the container body 2 under the limit of the second mounting seat 15, so that the support arm 17 drives the shaft-mounted locking hook 18 to rotate, so as to achieve the purpose of disconnecting the locking hook 18 from the door frame 7. Then, through the operation of the first hydraulic cylinder 14, it is easy to drive the door frame 7 to rotate under the limit of the upper crossbeam 4, so that the switch structure can intelligently flip up 90° as a whole, avoiding the material falling and hitting people when the door is opened, and the situation where the door cannot be opened due to site safety restrictions, thus meeting the safety application, saving labor, and improving efficiency and safety. The electrical components included above are all existing technologies and will not be described in detail here.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic opening and closing structure for a container rear door, comprising: The vehicle platform (1), the container body (2) fixedly installed on the vehicle platform (1), and the door frame (7) and door (8) set at the rear of the container body (2); Its characteristic is that it further includes: The outer rear side of the container body (2) is symmetrically fixed with corner pieces (3), and the upper and lower ends of the corner piece (3) are respectively fixedly connected with the upper crossbeam (4) and the lower crossbeam (5), and the left and right ends of the corner piece (3) are symmetrically fixed with side columns (6). The door frame (7) is fixedly connected to the upper beam (4) by a hinge, and the door frame (7) is connected to a symmetrical door body (8) by a hinge. The door frame (7) and the door body (8) are provided with a connection limiting structure, which includes a limit rod (9), a limit block (10), a movable part (11) and a fixed part (12). The container body (2) and the door frame (7) are provided with an intelligent opening and closing structure on the inner sides of the upper and lower ends. The intelligent opening and closing structure includes a first mounting base (13), a first hydraulic cylinder (14), a second mounting base (15), a second hydraulic cylinder (16), a support arm (17), and a shaft-locked hook (18). The first mounting base (13) is fixedly connected to the lower side of the upper rear end of the container body (2) and the front side of the outer end of the door frame (7). The first hydraulic cylinder (14) is rotatably connected to the inner side of the first mounting base (13).

2. The hydraulic opening and closing structure for the rear door of a container according to claim 1, characterized in that: The upper crossbeam (4), lower crossbeam (5) and side column (6) are located on the rear side of the container body (2), and the corner piece (3), upper crossbeam (4), lower crossbeam (5) and side column (6) are welded as a whole structure, and the combination of the corner piece (3), upper crossbeam (4), lower crossbeam (5) and side column (6) is rectangular in shape on the inner and outer sides.

3. The hydraulic opening and closing structure for the rear door of a container according to claim 1, characterized in that: The door frame (7) is attached to the rear side of the upper crossbeam (4), the lower crossbeam (5) and the side column (6), and the upper and lower ends of the door frame (7) are symmetrically fixed with limiting blocks (10), and the limiting blocks (10) are snapped together with limiting rods (9).

4. The hydraulic opening and closing structure for the rear door of a container according to claim 1, characterized in that: The limiting rod (9) is located on the rear side of the door body (8), and the limiting rod (9) is fixed to the door body (8) by a clamp and screws. The lower outer side of the limiting rod (9) is fixedly connected to a movable part (11), and the middle outer side of the movable part (11) is snapped with a fixing part (12) that is fixed to the door body (8) by screws.

5. The hydraulic opening and closing structure for the rear door of a container according to claim 1, characterized in that: The second mounting base (15) is fixedly connected to the inner side of the lower end of the container body (2), and a second oil cylinder (16), a support arm (17) and a shaft lock hook (18) are sequentially arranged behind the second mounting base (15), and the second mounting base (15) is rotatably connected to the second mounting base (15) and the support arm (17).

6. The hydraulic opening and closing structure for the rear door of a container according to claim 1, characterized in that: The rear end of the support arm (17) is rotatably connected to the inner side of the lower rear end of the container body (2), and the outer side of the rear end of the support arm (17) is fixedly connected to a shaft-mounted locking hook (18) that is snapped into place with the door frame body (7).

7. The hydraulic opening and closing structure for the rear door of a container according to claim 1, characterized in that: The container body (2), upper crossbeam (4), lower crossbeam (5) and side column (6) are provided with reinforcing ribs (19) that are fixedly connected to them, and the reinforcing ribs (19) are formed by the reinforcing plate (20) and the rib blocks (21) that are symmetrically fixed inside the reinforcing plate (20).

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