Emergency separation structure for LNG unloading arm

By using a control scheme that drives the gears to rotate via a motor and controls the movement of the insert block through the meshing of the gears and tooth grooves, the LNG loading/unloading arm can be quickly disconnected from the transport vessel. This solves the problem of difficulty in quickly disconnecting in existing technologies and improves safety and efficiency.

CN224188406UActive Publication Date: 2026-05-01JIANGSU DENGXIN FLUID TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU DENGXIN FLUID TECH CO LTD
Filing Date
2025-06-12
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The current LNG loading arm detachment structure makes it difficult to quickly disconnect the loading arm from the LNG carrier or shore base, posing a safety hazard.

Method used

The motor drives the gear to rotate, and the meshing of the gear and the tooth groove drives the control plate to move. The control block releases the positioning of the connecting plate, so that the connecting plate moves downward along the U-shaped plate, thereby quickly disconnecting the connection.

Benefits of technology

It enables rapid disconnection between the LNG loading/unloading arm and the transport vessel, improving operational safety and efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224188406U_ABST
    Figure CN224188406U_ABST
Patent Text Reader

Abstract

The emergency disengaging structure comprises a connecting plate, a vertical plate is fixedly installed on the bottom face of the connecting plate, a supporting plate is fixedly installed on the bottom face of the vertical plate, a U-shaped plate is fixedly installed on the left side face of the supporting plate, a connecting disc is slidably connected to the inner wall of the U-shaped plate, a through opening is formed in the right side face of the supporting plate, and a through hole is formed in the right side face of the supporting plate. And a control panel is slidably connected to the inner wall of the through opening, a shell is slidably connected to the outer surface of the control panel, and the left side face of the shell and the right side face of a U-shaped plate are fixedly installed. According to the device, a motor is arranged to provide power for a gear, so that the gear can rotate, a control panel can move left and right through the meshing effect of the gear and a tooth groove, then the control panel can control an insertion block to move, the insertion block can relieve positioning of a connecting disc, and the connecting disc can move downwards in the direction of a U-shaped plate; and the connecting disc can rapidly fall off, so that the loading and unloading arm and the LNG transport ship are disconnected.
Need to check novelty before this filing date? Find Prior Art

Description

An emergency release structure for an LNG unloading arm Technical Field

[0001] This application relates to the field of LNG loading and unloading arm technology, and in particular to an emergency release structure for an LNG unloading arm. Background Technology

[0002] LNG (liquefied natural gas) loading and unloading arms are a type of equipment specifically designed for loading and unloading liquefied natural gas. They are mainly used for the transfer of LNG between ships and shore-based facilities. Their function is to safely transport LNG from ships to shore storage tanks or vice versa. The operation must ensure safety, accuracy, and efficiency, so loading and unloading arms are required when loading and unloading liquefied natural gas.

[0003] Currently, when using LNG loading and unloading arms, a detachment structure is required to separate the LNG loading and unloading arms. However, the current detachment structure is difficult to quickly disconnect the loading and unloading arms from the LNG carrier or shore base, which poses a safety hazard during use.

[0004] To address this issue, we propose an emergency detachment structure for LNG unloading arms. Summary of the Invention

[0005] The purpose of this application is to provide an emergency release structure for an LNG unloading arm to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An emergency release structure for an LNG unloading arm includes a connecting plate, a vertical plate fixedly mounted on the bottom surface of the connecting plate, a support plate fixedly mounted on the bottom surface of the vertical plate, a U-shaped plate fixedly mounted on the left side of the support plate, a connecting disc slidably connected to the inner wall of the U-shaped plate, an opening on the right side of the support plate, a control plate slidably connected to the inner wall of the opening, a housing slidably connected to the outer surface of the control plate, the left side of the housing fixedly mounted to the right side of the U-shaped plate, a toothed groove on the bottom surface of the control plate, an insertion port on the right side of the connecting disc, an insertion block inside the insertion port, the right side of the insertion block fixedly mounted to the left side of the control plate, a control port on the bottom surface of the housing, and two support blocks fixedly mounted on the bottom surface of the housing. A gear is fixedly rotated on one side of the two support blocks that are close to each other. A motor is fixedly mounted at the front end of the gear, and the back of the motor is fixedly mounted to the front of one of the support blocks. The gear meshes with the toothed groove.

[0008] In a further embodiment, a protective shell is fitted onto the outer surface of the motor, and the upper surface of the protective shell is fixedly installed to the bottom surface of the housing.

[0009] In a further embodiment, the interior of the housing is provided with a buffer pad, and the left side of the buffer pad is fixedly installed with the right side of the control panel.

[0010] In a further embodiment, a fixing seat is fixedly installed on the upper surface of the housing, and the bottom surface of the fixing seat is fixedly installed on the right side surface of the support plate.

[0011] In a further embodiment, the upper surface of the connecting plate has two insertion holes, and the inner wall of each insertion hole is slidably connected with an insertion rod. The upper surface of each insertion rod is fixedly installed to the inner top wall of the U-shaped plate.

[0012] In a further embodiment, two mounting holes are provided on the upper surface of the connecting plate, and warning stickers are fixedly installed on both the front and back of the housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This application incorporates a motor that powers the gears, enabling them to rotate. The meshing of the gears and their teeth allows the control panel to move left and right, thereby controlling the movement of the insert block. This releases the insert block from the positioning of the connecting plate, allowing the connecting plate to move downwards along the U-shaped plate. This enables the connecting plate to detach quickly, disconnecting the loading / unloading arm from the LNG carrier. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural diagram of the emergency detachment structure for the LNG unloading arm.

[0016] Figure 2 is a three-dimensional structural schematic diagram of the emergency detachment structure for the LNG unloading arm, shown in the front section.

[0017] Figure 3 is a three-dimensional structural schematic diagram of the front section of the emergency detachment structure shell for the LNG unloading arm.

[0018] Figure 4 is an enlarged schematic diagram of the emergency release structure for the LNG unloading arm at point A in Figure 2.

[0019] In the diagram: 1. Connecting plate; 2. Mounting hole; 3. Vertical plate; 4. Connecting disc; 5. U-shaped plate; 6. Support plate; 7. Fixing base; 8. Housing; 9. Warning sticker; 10. Protective shell; 11. Insert rod; 12. Insert hole; 13. Insert block; 14. Control board; 15. Socket; 16. Through port; 17. Gear groove; 18. Gear; 19. Control port; 20. Buffer pad; 21. Support block; 22. Motor. Detailed Implementation

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0021] 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.

[0022] Please refer to Figures 1-4. In this utility model, an emergency release structure for an LNG unloading arm includes a connecting plate 1. Two mounting holes 2 are provided on the upper surface of the connecting plate 1. Warning stickers 9 are fixedly installed on both the front and back of the housing 8. The device can be installed through the mounting holes 2, and the warning stickers 9 can warn people in the surrounding area to prevent them from approaching the device.

[0023] A vertical plate 3 is fixedly installed on the bottom surface of the connecting plate 1, and a support plate 6 is fixedly installed on the bottom surface of the vertical plate 3. A U-shaped plate 5 is fixedly installed on the left side of the support plate 6. A connecting plate 4 is slidably connected to the inner wall of the U-shaped plate 5. Two insertion holes 12 are opened on the upper surface of the connecting plate 4. An insertion rod 11 is slidably connected to the inner wall of each insertion hole 12. The upper surface of each insertion rod 11 is fixedly installed to the inner top wall of the U-shaped plate 5. The connecting plate 4 can be limited by the insertion rod 11 and the insertion hole 12. A through-hole 16 is opened on the right side of the support plate 6. A control plate 14 is slidably connected to the inner wall of the through-hole 16. A housing 8 is slidably connected to the outer surface of the control plate 14.

[0024] A fixing seat 7 is fixedly installed on the upper surface of the housing 8. The bottom surface of the fixing seat 7 is fixedly installed on the right side of the support plate 6. The fixing seat 7 can reinforce the housing 8 and prevent the housing 8 from becoming loose. The left side of the housing 8 is fixedly installed on the right side of the U-shaped plate 5. The bottom surface of the control plate 14 has a toothed groove 17. The right side of the connecting plate 4 has a socket 15. The socket 15 has a plug 13 inside. The right side of the plug 13 is fixedly installed on the left side of the control plate 14. The housing 8 has a buffer pad 20 inside. The left side of the buffer pad 20 is fixedly installed on the right side of the control plate 14. The buffer pad 20 can protect the control plate 14 and prevent the control plate 14 from colliding with the housing 8.

[0025] The bottom surface of the housing 8 has a control port 19. Two support blocks 21 are fixedly installed on the bottom surface of the housing 8. A gear 18 is fixedly rotated on one side of the two support blocks 21 that are close to each other. A motor 22 is fixedly installed at the front end of the gear 18. A protective shell 10 is fitted on the outer surface of the motor 22. The upper surface of the protective shell 10 is fixedly installed on the bottom surface of the housing 8. The motor 22 can be protected by the protective shell 10 to prevent the motor 22 from being hit. The back of the motor 22 is fixedly installed on the front of one of the support blocks 21. The gear 18 meshes with the tooth groove 17.

[0026] The working principle of this application is:

[0027] In use, the connecting plate 4 and connecting plate 1 are connected to the loading and unloading arm and the transport ship. When an emergency separation is required, the motor 22 is started, which drives the gear 18 to rotate. The gear 18 and the tooth groove 17 work together to push the control plate 14 to move. As the control plate 14 moves, the plug 13 is pulled out of the socket 15. As the plug 13 moves, it releases the positioning of the connecting plate 4, allowing the connecting plate 4 to move downward along the U-shaped plate 5, thereby separating the connecting plate 4 from the support plate 6.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An emergency release structure for an LNG unloading arm, characterized in that: The system includes a connecting plate (1), a vertical plate (3) fixedly mounted on the bottom surface of the connecting plate (1), a support plate (6) fixedly mounted on the bottom surface of the vertical plate (3), a U-shaped plate (5) fixedly mounted on the left side of the support plate (6), a connecting disc (4) slidably connected to the inner wall of the U-shaped plate (5), an opening (16) on the right side of the support plate (6), a control plate (14) slidably connected to the inner wall of the opening (16), a housing (8) slidably connected to the outer surface of the control plate (14), the left side of the housing (8) fixedly mounted to the right side of the U-shaped plate (5), and a toothed groove (17) on the bottom surface of the control plate (14). A socket (15) is provided on the right side of the connecting plate (4). A plug (13) is provided inside the socket (15). The right side of the plug (13) is fixedly installed with the left side of the control plate (14). A control port (19) is provided on the bottom surface of the housing (8). Two support blocks (21) are fixedly installed on the bottom surface of the housing (8). A gear (18) is fixedly rotated on the side of the two support blocks (21) that are close to each other. A motor (22) is fixedly installed at the front end of the gear (18). The back of the motor (22) is fixedly installed with the front of one of the support blocks (21). The gear (18) meshes with the tooth groove (17).

2. The emergency disengagement structure for an LNG unloading arm according to claim 1, characterized in that: The outer surface of the motor (22) is covered with a protective shell (10), and the upper surface of the protective shell (10) is fixedly installed with the bottom surface of the housing (8).

3. The emergency disengagement structure for an LNG unloading arm according to claim 1, characterized in that: The housing (8) is provided with a buffer pad (20) inside, and the left side of the buffer pad (20) is fixedly installed with the right side of the control panel (14).

4. The emergency disengagement structure for an LNG unloading arm according to claim 1, characterized in that: A fixing seat (7) is fixedly installed on the upper surface of the housing (8), and the bottom surface of the fixing seat (7) is fixedly installed on the right side of the support plate (6).

5. The emergency disengagement structure for an LNG unloading arm according to claim 1, characterized in that: The upper surface of the connecting plate (4) has two insertion holes (12), and each insertion hole (12) has a slidably connected insertion rod (11) on its inner wall. The upper surface of each insertion rod (11) is fixedly installed to the inner top wall of the U-shaped plate (5).

6. The emergency disengagement structure for an LNG unloading arm according to claim 1, characterized in that: The upper surface of the connecting plate (1) has two mounting holes (2), and warning stickers (9) are fixedly installed on both the front and back of the housing (8).