A self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks

Abstract

This utility model discloses a self-closing fall protection device for LNG full-containment storage tanks. The device includes a door, which is rotatably connected to a first door frame via a detachable pin. The side of the door away from the first door frame abuts against a second door frame. The second and first door frames are spaced apart on the storage tank. The door forms an angle along the vertical planes of the first and second door frames, ensuring that the door always abuts against the second door frame when no one is passing through. This self-closing fall protection device for LNG full-containment storage tanks, by rotatably mounting the door on the door frame, creates an angle between the door and the vertical plane of the door frame, placing the center of gravity of the entire door slightly below the center, thus achieving a normally closed effect when no one is passing through. After operators and maintenance personnel manually open and pass through, the door automatically closes, and remains normally closed when no one is passing through.

Description

Technical Field

[0001] This utility model belongs to the field of marine oil engineering technology, and in particular relates to a self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks. Background Technology

[0002] Currently, at the connection between the emergency ladder and the top ring beam of LNG (liquefied natural gas) storage tanks, or at other high-altitude access points near the edge, there are instances where safety devices are not installed, or where safety devices are installed but are not normally closed.

[0003] The lack of safety devices or the inability of the installation devices to be normally closed at the connection between the emergency ladder and the top ring beam of the LNG storage tank and other passageways near the edge of height poses a significant risk of falls from height to operators and maintenance personnel.

[0004] Therefore, there is an urgent need to design a self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks to solve the problems mentioned above. Utility Model Content

[0005] To address the technical problem mentioned in the background art, where safety devices are not installed at the connection between the emergency ladder and the top ring beam of the LNG storage tank, or at other high-altitude access points near the edge, posing a risk of workers falling, a self-closing high-altitude fall prevention safety device for LNG full-containment storage tank is provided to solve the problem of high-altitude fall prevention for LNG storage tanks.

[0006] To achieve the above objectives, the specific technical solution of the self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks of this utility model is as follows:

[0007] A self-closing high-altitude fall prevention safety device for an LNG full-containment storage tank includes a door body. The door body is rotatably connected to a first door frame via a separable pin. The side of the door body away from the first door frame abuts against a second door frame. The second door frame and the first door frame are spaced apart on the storage tank. The door body forms an angle along the vertical plane of the first door frame and the second door frame so that the door body always abuts against the second door frame when no one is passing through.

[0008] Furthermore, both the first and second door frames are vertically connected to the storage tank.

[0009] Furthermore, the door body includes a first connecting rod and a second connecting rod. One end of both the first connecting rod and the second connecting rod is rotatably connected to the first door frame via a separable pin. The end of the first connecting rod away from the first door frame is connected to the end of the second connecting rod away from the first door frame.

[0010] Furthermore, the ends of the first connecting rod and the second connecting rod away from the first door frame are connected to form an abutment portion, which abuts against the second door frame.

[0011] Furthermore, a first support plate and a second support plate are provided at intervals along the length of the first door frame, and the first connecting rod and the second connecting rod are respectively rotatably connected to the first support plate and the second support plate by separable pins.

[0012] Furthermore, the second support plate is longer than the first support plate, so that the second connecting rod is inclined to abut against the second door frame.

[0013] Furthermore, both the first connecting rod and the second connecting rod have connecting holes at their ends, so that the separable pins can be connected to the first connecting rod and the second connecting rod respectively.

[0014] Furthermore, both the first support plate and the second support plate are provided with gaskets so that the first connecting rod and the second connecting rod are rotatably connected to the first support plate and the second support plate.

[0015] Furthermore, the gasket is positioned on the side away from the first support plate and the second support plate, away from the separable pin.

[0016] Furthermore, a handle is provided on the side of the first connecting rod away from the first support plate, so that construction workers can pull the handle to open the door.

[0017] The self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks of this invention has the following advantages:

[0018] By rotating the door body on the door frame, the door body forms a certain angle with the vertical plane of the door frame, so that the center of gravity of the entire door body is located in the lower middle position of the door body, thus creating a normally closed effect when no one is passing through. In this application, after the operator or maintenance personnel manually open the door and pass through, the door body automatically closes, and the door body remains normally closed when no one is passing through. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks of this utility model;

[0020] Figure 2 This is a side view of the self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks of this utility model;

[0021] Figure 3 This is a top view of the self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks of this utility model;

[0022] Figure 4 This is a schematic diagram showing the connection between the second support plate and the second connecting rod of the self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks of this utility model.

[0023] Explanation of markings in the diagram:

[0024] 1. Door body; 11. First connecting rod; 12. Second connecting rod; 2. First door frame; 3. Second door frame; 4. Separable latch; 5. First support plate; 6. Second support plate; 7. Gasket; 8. Handle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0027] The following is a reference to the appendix. Figure 1 To be continued Figure 4 This invention describes a self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks.

[0028] like Figure 1 As shown, the self-closing high-altitude fall prevention safety device for LNG full-containment storage tank in this utility model includes a door body 1. The door body 1 is rotatably connected to the first door frame 2 by a separable pin 4. The side of the door body 1 away from the first door frame 2 abuts against the second door frame 3. The second door frame 3 and the first door frame 2 are spaced apart on the storage tank. The door body 1 forms an angle along the vertical plane of the first door frame 2 and the second door frame 3 so that the door body 1 always abuts against the second door frame 3 when no one is passing through.

[0029] By rotating the door body 1 on the door frame, the door body 1 forms a certain angle with the vertical plane of the door frame, so that the center of gravity of the entire door body 1 is located in the lower middle position of the door body, thus creating a normally closed effect when no one is passing through. In this application, after the operator and maintenance personnel manually open the door and pass through, the door body 1 automatically closes, and when no one is passing through, the door body 1 is in a normally closed state.

[0030] Furthermore, such as Figure 1 and Figure 4As shown, the first door frame 2 and the second door frame 3 are both vertically connected to the storage tank; the door body 1 includes a first connecting rod 11 and a second connecting rod 12. One end of the first connecting rod 11 and the second connecting rod 12 are rotatably connected to the first door frame 2 through a separable pin 4. The end of the first connecting rod 11 away from the first door frame 2 is connected to the end of the second connecting rod 12 away from the first door frame 2. The ends of the first connecting rod 11 and the second connecting rod 12 away from the first door frame 2 are connected to form an abutment part, which abuts against the second door frame 3.

[0031] In this embodiment, preferably, the first door frame 2 and the second door frame 3 are both vertically welded to the storage tank. The first door frame 2, the second door frame 3 and the railings on the storage tank together form the protective structure of the storage tank, and kick plates are correspondingly installed below the railings to ensure the safety of construction workers.

[0032] The door body 1 is composed of a first connecting rod 11 and a second connecting rod 12. The first connecting rod 11 and the second connecting rod 12 are rotatably connected to the first door frame 2 at intervals, and the ends of the first connecting rod 11 and the second connecting rod 12 away from the first door frame 2 are connected to form the door body 1.

[0033] Preferably, the first connecting rod 11 and the second connecting rod 12 are welded together at the ends away from the first door frame 2 to form an abutment part, so that the door body abuts against the second door frame 3 when no one is passing through.

[0034] Furthermore, such as Figure 2 As shown, a first support plate 5 and a second support plate 6 are provided at intervals along the length direction of the first door frame 2. The first connecting rod 11 and the second connecting rod 12 are rotatably connected to the first support plate 5 and the second support plate 6 respectively by separable pins 4. The second support plate 6 is longer than the first support plate 5 so that the second connecting rod 12 is inclined to abut against the second door frame 3. The ends of the first connecting rod 11 and the second connecting rod 12 are provided with connecting holes so that the separable pins 4 are connected to the first connecting rod 11 and the second connecting rod 12 respectively.

[0035] In this embodiment, preferably, a first support plate 5 and a second support plate 6 are welded at intervals along the length direction of the first door frame 2. A first connecting rod 11 is rotatably connected to the first support plate 5, and a second connecting rod 12 is rotatably connected to the second support plate 6, thereby causing the door body 1 to rotate along the first door frame 2.

[0036] Furthermore, the second support plate 6 is longer than the first support plate 5, so that the door body 1 and the vertical plane of the door frame form a certain angle, preferably 5 degrees, so that the center of gravity of the door body 1 is located in the lower middle position of the door body. When the operator and maintenance personnel manually open the door and pass through, the door body 1 automatically closes. When no one passes through, the door body 1 is in a normally closed state, that is, it abuts against the second door frame 3.

[0037] Both the first connecting rod 11 and the second connecting rod 12 have connecting holes at their ends. Separable pins 4 are connected to the connecting holes of both the first connecting rod 11 and the second connecting rod 12, thereby allowing the first connecting rod 11 and the second connecting rod 12 to be rotatably mounted on the first support plate 5 and the second support plate 6.

[0038] Furthermore, such as Figure 3 and Figure 4 As shown, in a preferred embodiment, both the first support plate 5 and the second support plate 6 are provided with gaskets 7. The first connecting rod 11 and the second connecting rod 12 are rotatably connected to the first support plate 5 and the second support plate 6, and the gaskets 7 are provided on the side away from the first support plate 5 and the second support plate 6 and away from the separable pin 4, so that the first connecting rod 11 and the second connecting rod 12 are rotatably provided on the first support plate 5 and the second support plate 6.

[0039] The first connecting rod 11 has a handle 8 on the side away from the first support plate 5. Construction workers can manually open the door 1 by pulling the handle 8.

[0040] The working principle of the self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks in this utility model is as follows:

[0041] First, the first connecting rod 11 and the second connecting rod 12 are rotatably connected to the first support plate 5 and the second support plate 6 respectively, and the first connecting rod 11 and the second connecting rod 12 are fixed by the separable pin 4.

[0042] Then, when the construction workers need to climb onto the storage tank, they pull the handle 8, which in turn causes the door 1 to rotate and open.

[0043] Finally, after the operator and maintenance personnel manually open the door and pass through, door 1 automatically closes and remains in a normally closed state.

[0044] Based on the self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks, this utility model rotates and mounts the door body 1 on the first door frame 2. The door body 1 forms a certain angle with the vertical planes of the first door frame 2 and the second door frame 3, so that the center of gravity of the entire door body is located in the lower middle position of the door body 1, thus creating a normally closed effect when no one is passing through. After the operator or maintenance personnel manually open the door and pass through, the door body 1 automatically closes, and the door body 1 always remains in a normally closed state when no one is passing through.

[0045] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A LNG full containment tank self-closing high place anti-falling safety device, characterized in that, Includes a door body, which is rotatably connected to a first door frame via a separable latch. The side of the door body away from the first door frame abuts against a second door frame. The second door frame and the first door frame are spaced apart on the storage tank. The door body forms an angle along the vertical plane of the first door frame and the second door frame so that the door body always abuts against the second door frame when no one is passing through.

2. The LNG full containment tank self-closing overhead fall arrest safety device according to claim 1, characterized in that, Both the first and second door frames are vertically connected to the storage tank.

3. The LNG full containment tank self-closing overhead fall arrest safety device according to claim 1, wherein, The door body includes a first connecting rod and a second connecting rod. One end of the first connecting rod and the second connecting rod are rotatably connected to the first door frame via a separable pin. The end of the first connecting rod away from the first door frame is connected to the end of the second connecting rod away from the first door frame.

4. The self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks according to claim 3, characterized in that, The first connecting rod and the second connecting rod are connected at the ends away from the first door frame to form an abutment part, which abuts against the second door frame.

5. The LNG full containment storage tank self-closing overhead fall arrest safety device according to claim 3, wherein, A first support plate and a second support plate are provided at intervals along the length of the first door frame. The first connecting rod and the second connecting rod are rotatably connected to the first support plate and the second support plate respectively by separable pins.

6. The LNG full containment storage tank self-closing overhead fall arrest safety device according to claim 5, characterized in that, The second support plate is longer than the first support plate, so that the second connecting rod is inclined to abut against the second door frame.

7. The LNG full containment storage tank self-closing overhead fall arrest safety device according to claim 5, wherein, Both the first connecting rod and the second connecting rod have connecting holes at their ends, so that the separable pins can be connected to the first connecting rod and the second connecting rod respectively.

8. The self-closing high-altitude fall prevention safety device for LNG full-containment storage tanks according to claim 6, characterized in that, Both the first support plate and the second support plate are provided with gaskets so that the first connecting rod and the second connecting rod are rotatably connected to the first support plate and the second support plate.

9. The LNG full containment storage tank self-closing overhead fall arrest safety device according to claim 8, characterized in that, The gasket is positioned away from the first support plate and the second support plate, and away from the separable pin.

10. The LNG full containment storage tank self-closing overhead fall arrest safety device of claim 8, wherein, The first connecting rod has a handle on the side away from the first support plate, so that construction workers can pull the handle to open the door.

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