Opening and fixing device integrated grating cover

Abstract

The utility model discloses an opening and fixing device integrated grating cover, which comprises a cover body (1), a limiting steel plate (2), a limiting hinge steel plate (3), a hinge steel plate (4) and a tongue bolt (7), the limiting steel plate (2) is fixed on the cover body (1), the limiting hinge steel plate (3) and the hinge steel plate (4) are respectively fixed on a deck, and the tongue bolt (7) is fixed on the limiting hinge steel plate (3). The cover body (1) is movably installed between the limiting hinge steel plate (3) and a deck and between the hinge steel plate (4) and the deck, an eye ring is arranged on the limiting steel plate (2), and a left eye hole and a right eye hole are formed in the limiting hinge steel plate (3). The grid cover integrated with the opening and fixing device is opened from the upper portion of the platform, a limiting hook does not need to be additionally provided, no extra part needing to be welded is needed, and the grid cover is convenient, fast, safe and high in practicability and operation performance.

Description

Technical Field

[0001] The utility model relates to a grating cover with an integrated opening and fixing device. Background Art

[0002] Inspection channels for straight ladders exist in areas such as the interior of all types of ships at sea. In areas with a deck structure, a grating cover is required to temporarily seal it to prevent crew members from accidentally falling in. The original grating cover is generally located near the bulkhead. After it is opened, an additional hook is provided on the bulkhead to temporarily hook and fix the cover plate. When in the closed state, the locking device is located below the deck and can only be opened from below. During the preliminary design stage of the FPSO (Floating Production Storage and Offloading Unit) modification project, it was found that most such grating covers need to be opened from above the deck and are far from the bulkhead. Providing additional hooks in the corresponding area above the grating cover is also likely to trip people, which is inconvenient and poses a great safety hazard. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a grating cover with an integrated opening and fixing device that is convenient, safe, and has strong practicality and operability.

[0004] The technical solution adopted by the utility model to achieve the above purpose is: a grating cover with an integrated opening and fixing device, including a cover body (1), a limit steel plate (2), a limit hinge steel plate (3), a hinge steel plate (4), and a tongue bolt (7). The limit steel plate (2) is fixed on the cover body (1). The limit hinge steel plate (3) and the hinge steel plate (4) are respectively fixed on the deck. The cover body (1) is movably installed between the limit hinge steel plate (3), the hinge steel plate (4), and the deck. An eye ring is provided on the limit steel plate (2), and two left and right eye holes are provided on the limit hinge steel plate (3). When the cover body (1) is closed, the eye ring on the limit steel plate (2) is aligned with the left eye hole on the limit hinge steel plate (3), and the tongue bolt (7) is inserted for limit fixation. When the cover body (1) is opened, the eye ring on the limit steel plate (2) is aligned with the right eye hole on the limit hinge steel plate (3), and the tongue bolt (7) is inserted for limit fixation.

[0005] A small eye plate (5) is fixedly installed on the cover body (1), and the tongue bolt (7) is tied to the small eye plate (5) through a steel wire rope (6).

[0006] When the cover body (1) is opened, the angle between the cover body (1) and the deck is between 90° and 110°.

[0007] The grating cover with an integrated opening and fixing device of the utility model is opened from above the platform, without the need to additionally provide a limit hook, and there are no additional components that need to be welded. It is convenient, safe, and has strong practicality and operability. Description of the Drawings

[0008] Figure 1 It is a schematic diagram of the overall structure of a grille cover with an integrated opening and fixing device of the present utility model.

[0009] Figure 2 It is an enlarged view of the partial structure at position A of a grille cover with an integrated opening and fixing device of the present utility model.

[0010] Figure 3 It is a schematic diagram of the closed state of a grille cover with an integrated opening and fixing device of the present utility model.

[0011] Figure 4 It is a schematic diagram of the open state of a grille cover with an integrated opening and fixing device of the present utility model.

[0012] In the figure: 1. Cover body; 2. Limit steel plate; 3. Limit hinge steel plate; 4. Hinge steel plate; 5. Small eye plate; 6. Steel wire rope; 7. Tongue bolt. Specific implementation manner

[0013] As Figures 1 to 4 shown, the grille cover with an integrated opening and fixing device includes a cover body 1, a limit steel plate 2, a limit hinge steel plate 3, a hinge steel plate 4 and a tongue bolt 7. The limit steel plate 2 is fixed on the cover body 1, the limit hinge steel plate 3 and the hinge steel plate 4 are respectively fixed on the deck. The cover body 1 is movably installed between the limit hinge steel plate 3 and the hinge steel plate 4 and the deck. An eye ring is provided on the limit steel plate 2, and two left and right eye holes are provided on the limit hinge steel plate 3. A small eye plate 5 is fixedly installed on the cover body 1. The tongue bolt 7 is tied to the small eye plate 5 through a steel wire rope 6. When the cover body 1 is closed, the eye ring on the limit steel plate 2 is aligned with the left eye hole on the limit hinge steel plate 3, and the tongue bolt 7 is inserted for limit fixation to serve as a locking device, which can be not inserted when no locking is required. When the cover body 1 is opened, the eye ring on the limit steel plate 2 is aligned with the right eye hole on the limit hinge steel plate 3, and the tongue bolt 7 is inserted for limit fixation. When the cover body 1 is opened, the angle between the cover body 1 and the deck is between 90° and 110°, and the angle can be adjusted according to requirements. The grille cover with an integrated opening and fixing device of the present utility model is opened from above the platform, without the need to provide an additional limit hook, and there are no additional parts to be welded, which is convenient, safe, and has strong practicability and operability.

Claims

1. A grille cover integrated with an opening and fixing device, characterized in that: It includes a cover body (1), a limit steel plate (2), a limit hinge steel plate (3), a hinge steel plate (4) and a tongue bolt (7). The limit steel plate (2) is fixed on the cover body (1), the limit hinge steel plate (3) and the hinge steel plate (4) are respectively fixed on the deck, the cover body (1) is movably installed between the limit hinge steel plate (3), the hinge steel plate (4) and the deck. An eyebolt is provided on the limit steel plate (2), and two left and right eyeholes are provided on the limit hinge steel plate (3). When the cover body (1) is closed, the eyebolt on the limit steel plate (2) is aligned with the left eyehole on the limit hinge steel plate (3), and the tongue bolt (7) is inserted for limit fixation. When the cover body (1) is opened, the eyebolt on the limit steel plate (2) is aligned with the right eyehole on the limit hinge steel plate (3), and the tongue bolt (7) is inserted for limit fixation.

2. The integrated grille cover with opening and fixing device according to claim 1, characterized in that: A small eyeplate (5) is fixedly installed on the cover body (1), and the tongue bolt (7) is tied to the small eyeplate (5) through a steel wire rope (6).

3. The integrated grille cover with opening and fixing device according to claim 1, characterized in that: When the cover body (1) is opened, the angle between the cover body (1) and the deck is between 90° and 110°.

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