Container limiting door hinge assembly

Abstract

The utility model discloses a container limiting door hinge assembly which comprises a hinge plate hinged to a door corner post through a hinge lug, the hinge plate is further connected with a door leaf and located between the hinge lug and the door corner post, a hinge groove is formed in an inlay of the hinge plate and is a cylindrical groove with two limiting edges, a through pin shaft groove is formed in the hinge lug, and the hinge lug is connected with the hinge plate. A hinge pin is inserted into the pin shaft groove, the hinge pin is completely matched with the pin shaft groove, the hinge pin further penetrates through the hinge groove, and rotation of the door leaf is restrained by the hinge pin and the limiting edge. By adjusting the opening sizes of the pin shaft groove and the hinge groove and changing the position and the angle of the pin shaft groove relative to the hinge lug and the angle of the hinge groove relative to the hinge plate, the rotation amplitude of the hinge pin in the hinge groove is limited, the door opening angle is finally limited, and the purpose is achieved in the mode that cost is lower and the structure is more ingenious.

Description

Technical Field

[0001] The utility model relates to the technical field of container production, and more specifically, it relates to a container limit door hinge assembly. Background Art

[0002] During the use of sea containers, there are special requirements for the opening angle of the double-leaf door. Ordinary container doors cannot meet such usage requirements. Usually, by adding components, a strut is added between the door and the container body to limit the opening angle. However, this method will undoubtedly increase the production cost, and the strut may also affect the normal opening operation. Summary of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a container limit door hinge assembly to solve one or more of the above problems.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] The container limit door hinge assembly includes a hinge plate hinged to the door corner post through a hinge ear. The hinge plate is also connected to the door leaf. The hinge plate is located between the hinge ear and the door corner post. An articulated groove is formed on the inlay of the hinge plate. The articulated groove is a cylindrical groove with two limiting edges. A through pin shaft groove is formed on the hinge ear. A hinge pin is inserted into the pin shaft groove. The hinge pin fits perfectly with the pin shaft groove. The hinge pin also passes through the articulated groove. The rotation of the door leaf is restricted by the hinge pin and the limiting edges.

[0006] Furthermore, the limiting edges meet at the center of the articulated groove. The articulated groove is filled with a limiting column. The limiting column is a sector column. The side of the limiting column coincides with the limiting edge.

[0007] Furthermore, the hinge pin is a column pin, and the cross-section of the hinge pin is a notch circle structure.

[0008] Furthermore, the fillet angle of the cross-section of the hinge pin is not greater than the fillet angle of the cross-section of the articulated groove.

[0009] Furthermore, the fillet angles of the cross-sections of the pin shaft groove, the hinge pin, and the articulated groove are not unique. The opening position and angle of the pin shaft groove on the hinge ear are not fixed. The opening angle of the articulated groove on the inlay is not fixed.

[0010] Furthermore, the hinge ear is fixed to the door corner post, and the hinge pin is fixed relative to the door corner post.

[0011] In summary, the utility model has the following beneficial effects: By adjusting the opening sizes of the pin shaft slots and hinge slots, changing the position and angle of the pin shaft slots relative to the hinge ears, and the angle of the hinge slots relative to the hinge plates, the rotation amplitude of the hinge pins in the hinge slots is restricted, ultimately restricting the opening angle of the door, achieving this purpose in a way with lower cost and more ingenious structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the main structure of an embodiment provided by the utility model;

[0013] Figure 2 is a schematic diagram of the structure of the hinge plate in an embodiment provided by the utility model;

[0014] Figure 3 is a top view of the hinge plate in an embodiment provided by the utility model;

[0015] Figure 4 is a schematic diagram of the structure of the hinge ear in an embodiment provided by the utility model;

[0016] Figure 5 is a schematic diagram of the structure of the hinge pin in an embodiment provided by the utility model;

[0017] Figure 6 is a schematic diagram of the cross-sectional change during the opening and closing operation of the box door in an embodiment provided by the utility model;

[0018] Figure 7 is a schematic diagram of the plane change of the hinge plate during the opening and closing operation of the box door in an embodiment provided by the utility model;

[0019] Figure 8 is a plan view of the box door structure of the prior art provided by the utility model;

[0020] Figure 9 is a plan view of the box door structure with a strut of the prior art provided by the utility model.

[0021] In the figure: 1, hinge ear; 2, door corner post; 3, hinge plate; 4, door leaf; 5, limiting edge; 6, pin shaft slot; 7, hinge pin; 8, limiting post. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further elaborates on the utility model in detail with reference to the Figures 1-9 drawings.

[0023] As Figure 8 shown, it is the door hinge structure of a common container in the prior art. It can be seen from the figure that the rotation amplitude of the door leaf 4 is basically unrestricted. As long as the door leaf 4 does not collide with or contact the door corner post 2, theoretically, a large range of opening and closing actions can be achieved. AsFigure 9 As shown, in order to meet some special usage scenarios or requirements, it is necessary to limit the opening range of the door leaf 4, that is, the angle by which it can rotate. Generally, a strut is installed between the door leaf 4 and the door corner post 2, and the opening and closing range of the door leaf 4 is reasonably limited by the elongation limit of the strut. The installation of the strut undoubtedly increases the production cost of the container and is not conducive to cost reduction and efficiency improvement.

[0024] The container limit door hinge assembly provided by this application, as Figure 1 shown, the main structure is similar to the conventional container hinge structure. The hinge plate 3 is pivotally connected to the door corner post 2 through two upper and lower hinge ears 1 in the middle. The hinge ear 1 is fixed to the door corner post 2, and the other end of the hinge plate 3 is connected to the door leaf 4, forming a basic door structure for the container. As Figure 2 and Figure 3 shown, the difference is that an articulated groove is provided on the inlay of the hinge plate 3, and two limiting edges 5 are provided in the articulated groove. In order to ensure the structural strength and production cost, the acute-angled fan-shaped area formed by the limiting edges 5 is filled, leaving a cylindrical groove with a fan-shaped notch. The two limiting edges 5 meet at the neutral line of the inlay. Figure 4 As shown, a through pin shaft groove 6 is provided on the hinge ear 1. The pin shaft groove 6 is a semi-circular groove. A hinge pin 7 is inserted into the pin shaft groove 6, and the edges of the pin shaft groove 6 and the hinge pin 7 fit perfectly. Since the hinge ear 1 is fixed relative to the door corner post 2, the hinge pin 7 is also fixed. Figure 5 As shown, the hinge pin 7 is a semi-cylindrical body. The hinge pin 7 also passes through the articulated groove. The rotation of the door leaf 4 is restricted by the hinge pin 7 and the limiting edges 5.

[0025] Generally, the straight edge of the semi-circle of the pin shaft groove 6 is parallel to the wide edge of the hinge ear 1. However, in order to cooperate with the limitation of the rotation angle of the door leaf 4 in different situations, the entire pin shaft groove 6 can be rotated and moved relative to the hinge ear 1. Similarly, the articulated groove can be rotated relative to the hinge plate 3 around the center line of the inlay. In addition to this, the circumferential angles of the articulated groove, the pin shaft groove 6, and the hinge pin 7 can be directly changed. However, it is necessary to ensure that the fillet angle of the hinge pin 7 and the pin shaft groove 6 is not greater than the fillet angle of the space outside the limiting column 8 formed by the two limiting edges 5 of the articulated groove, so that there is a rotation space for the articulated groove relative to the hinge pin 7, and the door leaf 4 can rotate. Figure 6 and Figure 7 As shown, when the door leaf 4 is opened, the articulated groove rotates relative to the hinge pin 7, and the rotation range is limited by the two limiting edges 5. The opening angle of the container door can be limited without additional struts.

[0026] It should be noted that this specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contributions according to needs after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A container limited door hinge assembly, comprising a hinge plate (3) hinged to a door corner column (2) via a hinge ear (1), wherein the hinge plate (3) is also connected to a door leaf (4), and is characterized in that: The hinge plate (3) is located between the hinge ear (1) and the door corner column (2); a hinge groove is provided on the inlay of the hinge plate (3); the hinge groove is a cylindrical groove with two limiting edges (5); a through pin groove (6) is provided on the hinge ear (1); a hinge pin (7) is inserted into the pin groove (6); the hinge pin (7) is completely matched with the pin groove (6); the hinge pin (7) also passes through the hinge groove; the rotation of the door leaf (4) is constrained by the hinge pin (7) and the limiting edges (5).

2. The container limit door hinge assembly according to claim 1, characterized in that: The limiting edges (5) intersect at the center of the hinge groove, and a limiting column (8) is filled in the hinge groove. The limiting column (8) is a fan-shaped column, and the side of the limiting column (8) coincides with the limiting edge (5).

3. The container limit door hinge assembly according to claim 1, characterized in that: The hinge pin (7) is a cylindrical pin, and the cross section of the hinge pin (7) is a notched circular structure.

4. The container limit door hinge assembly according to claim 3, characterized in that: The fillet angle of the cross section of the hinge pin (7) is not greater than the fillet angle of the cross section of the hinge groove.

5. The container limit door hinge assembly according to claim 1, characterized in that: The cross-sectional fillet angles of the pin slot (6), the hinge pin (7), and the hinge slot are not unique; the opening position and angle of the pin slot (6) on the hinge ear (1) are not fixed; and the opening angle of the hinge slot on the inlay is not fixed.

6. The container limit door hinge assembly according to claim 1, characterized in that: The hinge ear (1) is fixed to the door corner post (2), and the hinge pin (7) is fixed relative to the door corner post (2).

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