Safety protection device for liquid ammonia loading and unloading operation

Abstract

The utility model relates to the technical field of liquid ammonia transportation, in particular to a safety protection device for liquid ammonia loading and unloading operation, which comprises a cofferdam main body and a connecting component, the cofferdam main body is formed by splicing a plurality of splice plates, the splice plates are identical in structure, the adjacent splice plates are connected in a sliding manner, and the connecting component is connected onto the splice plates. The connecting assembly comprises a handle, a storage piece, a locking piece and a matching piece. According to the utility model, the locking piece and the matching piece which are arranged at the two ends of the splice plate body can be manually self-locked during splicing, the manual self-locking avoids accidents of self-locking and unlocking functions caused by freezing of the elastic structure, and meanwhile, the handle for adjusting the self-locking structure is provided with an anti-freezing structure, so that the self-locking and unlocking functions of the splice plate body are not influenced. The handle rotates in different directions to make contact with the magnetic attraction piece and the clamping block, the handle is fixed in a magnetic attraction mode, the clamping block pushes the rotating plate on the handle to rotate, and the rotating plate deforms and is convenient to grasp and rotate.

Description

Technical Field

[0001] This utility model relates to the field of liquid ammonia transportation technology, specifically to a safety protection device for liquid ammonia loading and unloading operations. Background Technology

[0002] Liquid ammonia is an extremely important industrial chemical, playing a crucial role, especially in agricultural production (fertilizers) and industrial refrigeration. However, it also possesses multiple high-risk characteristics, including being highly toxic, strongly irritating / corrosive, flammable, and causing frostbite.

[0003] Chinese Patent No. CN221822942U discloses a cofferdam device for water conservancy construction, relating to the technical field of cofferdam devices for water conservancy construction. The device includes a baffle plate with an installation groove at its top. A first installation block is slidably connected to the inner wall of the installation groove, and a second installation block is movably connected to the outer side of the first installation block. The device is configured with a baffle plate, a first installation block, a square block, a disassembly block, a sliding rod, a connecting rod, a movable block, a threaded rod, a slider, a locking plate, a moving block, and an installation groove. This design simplifies the connection process, avoiding numerous steps during construction. Furthermore, the device is configured with a threaded shaft, a locking block, a moving plate, a bearing, a fixed shaft, a first gear, a second gear, and a transmission shaft. This design prevents impurities such as mud and sand in the water from impacting the baffle plate, thus preventing these impurities from impacting the cofferdam with the water flow.

[0004] However, in the above technical solution, multiple T-shaped blocks and T-shaped grooves are used to assemble multiple baffles into a rectangular dam. However, when a liquid ammonia leaks during loading and unloading, although the dam can block the leaking liquid ammonia, the low temperature of the liquid ammonia will be conducted, causing the self-locking structure and the adjustment handle to freeze and become unusable. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a safety protection device for liquid ammonia loading and unloading operations.

[0006] The technical solution of this utility model is: a safety protection device for liquid ammonia loading and unloading operations, including a cofferdam body, which is composed of multiple splicing plates. The splicing plates have the same structure and adjacent splicing plates are slidably connected.

[0007] The connecting component is attached to the splicing panel. The connecting component includes a handle, a storage component, a locking component, and a mating component. The rotating component and the locking component are respectively connected to the two sides of the upper end face of the splicing panel. The storage component is connected to the locking component. The handle is connected to the storage component and has a split design. The storage component includes a mounting plate, a magnetic component, and a locking block. The mounting plate is connected to the locking component. The magnetic component and the locking block are connected to the mounting plate in parallel. The handle is located in the middle of the mounting plate and a connecting shaft passing through the mounting plate is connected to the handle.

[0008] When the connecting components are in use, the handle rotates around the support shaft, causing the moving end of the locking component to move horizontally and engage with the mating component. The handle can enter the storage and unfolding states by changing its direction.

[0009] Preferably, the handle consists of a fixed plate and a rotating plate, with a storage slot on the fixed plate and the mounting plate rotatably connected to the storage slot.

[0010] Preferably, the locking component consists of a mounting base, a support shaft, a drive gear, a driven gear, a threaded rod, and a movable plate. The support shaft is rotatably connected to the mounting base, and both ends of the support shaft are connected to the connecting shaft and the drive gear, respectively. The threaded rod is rotatably connected to the mounting base, the movable plate is threadedly connected to the threaded rod, the driven gear is connected to one end of the threaded rod, and the drive gear and the driven gear are meshed and connected for transmission.

[0011] Preferably, the mounting base consists of a housing and a cover plate. The housing is connected to the splicing plate, the cover plate is detachably connected to the housing, and the cover plate is connected to the mounting base.

[0012] Preferably, the mating part consists of a fixed base and a limiting plate. The fixed base has a receiving groove, and the limiting plate is rotatably connected in the receiving groove. One end of the limiting plate is connected to a limiting protrusion.

[0013] Preferably, each splicing panel is connected to an extension panel.

[0014] Preferably, dovetail grooves and dovetail blocks are provided on both sides of the splicing plate, and the dovetail grooves and dovetail blocks of adjacent splicing plates are slidably connected.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0016] In this invention, the locking and mating parts at both ends of the splicing panel can be manually self-locked during splicing. The manual self-locking avoids the elastic structure freezing, which could cause unexpected problems with its self-locking and unlocking functions. At the same time, the handle used to adjust the self-locking structure is equipped with an anti-freezing structure. The handle can be rotated to different positions to contact the magnetic parts and the locking blocks, thereby magnetically fixing the handle and pushing the rotating plate on the handle to rotate through the locking blocks, causing it to deform for easy gripping and rotation. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a schematic diagram of the splicing structure of the splicing panels;

[0019] Figure 3 for Figure 2 Enlarged view of the structure at point A;

[0020] Figure 4 for Figure 2 Enlarged view of the structure at point B.

[0021] Reference numerals: 1. Main body of the cofferdam; 2. Splicing plate; 3. Handle; 4. Mounting plate; 5. Magnetic attachment; 6. Locking block; 7. Fixing plate; 8. Rotating plate; 9. Mounting seat; 10. Support shaft; 11. Driving gear; 12. Driven gear; 13. Threaded rod; 14. Moving plate; 15. Box body; 16. Cover plate; 17. Fixing seat; 18. Limiting plate; 19. Counterweight box; 20. Extension plate; 21. Dovetail groove; 22. Dovetail block. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-4 As shown, this utility model proposes a safety protection device for liquid ammonia loading and unloading operations, including a cofferdam body 1 and a connecting assembly. The cofferdam body 1 is composed of multiple splicing plates 2, which have the same structure and are slidably connected to adjacent splicing plates 2. The connecting assembly is connected to the splicing plates 2 and includes a handle 3, a storage component, a locking component, and a mating component. The rotating component and the locking component are respectively connected to both sides of the upper end face of the splicing plate 2. The storage component is connected to the locking component, and the handle 3 is connected to the storage component. The handle 3 is a split design. The housing includes a mounting plate 4, a magnetic 5, and a locking block 6. The mounting plate 4 is connected to the locking component, and the magnetic 5 and locking block 6 are connected to the mounting plate 4 in parallel. A spring connects the locking block 6 to the mounting plate 4. A handle 3 is located in the middle of the mounting plate 4, and a connecting shaft passing through the mounting plate 4 is connected to the handle 3. When the connecting component is in use, the handle 3 rotates around the support shaft 10, causing the moving end of the locking component to move horizontally and engage with the mating component. The handle 3 can enter the storage and unfolding states by changing its direction.

[0024] Example 2

[0025] like Figures 2-4 As shown, this utility model proposes a safety protection device for liquid ammonia loading and unloading operations. Compared with Embodiment 1, this embodiment describes the detailed structure of the connecting components.

[0026] In an optional embodiment, the handle 3 consists of a fixed plate 7 and a rotating plate 8. The fixed plate 7 has a storage slot, and the mounting plate 4 is rotatably connected in the storage slot. The split design allows the rotating plate 8 to move to prevent it from freezing.

[0027] In an optional embodiment, the locking component comprises a mounting base 9, a support shaft 10, a drive gear 11, a driven gear 12, a threaded rod 13, and a movable plate 14. The support shaft 10 is rotatably connected to the mounting base 9, and its two ends are respectively connected to a connecting shaft and the drive gear 11. The threaded rod 13 is rotatably connected to the mounting base 9, and the movable plate 14 is threadedly connected to the threaded rod 13. The driven gear 12 is connected to one end of the threaded rod 13, and the drive gear 11 and the driven gear 12 are meshed and connected for transmission. The top of the support shaft 10 is provided with a polygonal structure, which cooperates with the handle 3 to give it different effects in different positions, making it convenient for the handle 3 to rotate to produce different functions.

[0028] In an optional embodiment, the mounting base 9 consists of a housing 15 and a cover plate 16. The housing 15 is connected to the splicing plate 2, and the cover plate 16 is detachably connected to the housing 15 and connected to the mounting base 9.

[0029] In an optional embodiment, the mating component consists of a fixed base 17 and a limiting plate 18. The fixed base 17 has a receiving groove, and the limiting plate 18 is rotatably connected in the receiving groove. One end of the limiting plate 18 is connected to a limiting protrusion.

[0030] In an optional embodiment, each splicing panel 2 is connected to an extension plate 19; the extension plate 19 enhances the support stability of the splicing panel 2.

[0031] In an optional embodiment, dovetail grooves 20 and dovetail blocks 21 are respectively provided on both sides of the splicing plate 2, and the dovetail grooves 20 and dovetail blocks 21 of adjacent splicing plates 2 are slidably connected; the dovetail grooves 20 and dovetail blocks 21 can position the splicing plate 2 to facilitate self-locking.

[0032] In summary, when using this utility model, the worker aligns the dovetail block 21 on the splicing plate 2 with the dovetail groove 20 on another splicing plate 2 to splice them together, forming the main body 1 of the cofferdam. Then, the worker rotates the handle 3 to drive the support shaft 10 to rotate the door, causing the drive gear 11 to drive the driven gear 12 to rotate, which in turn rotates the threaded rod 13, moving the moving plate 14 out of the box 15 and bringing it close to the limiting plate 18. After one end of the limiting plate 18 is lifted, it falls under gravity and locks with the moving plate 14 to prevent the splicing plate 2 from loosening. The other splicing plates 2 are spliced ​​in the same way. Then, the worker rotates the handle 3 to the end close to the locking block 6. The spring at the bottom of the locking block 6 causes the rotating plate 8 part of the handle 3 to be lifted after the handle 3 is rotated, and the handle 3 changes from an "I" shape to a "V" shape, so that it can break ice blocks by rotating the rotating plate 8 after being cooled to prevent freezing. When storing, the worker turns the handle 3 to the other side and uses the magnetic suction 5 to attach and fix it for easy transportation.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A safety protection device for liquid ammonia loading and unloading operations, characterized in that, include The main body of the cofferdam (1) is composed of multiple splicing plates (2). The splicing plates (2) have the same structure and adjacent splicing plates (2) are slidably connected. The connecting component is connected to the splicing plate (2). The connecting component includes a handle (3), a storage component, a locking component, and a mating component. The rotating component and the locking component are respectively connected to the two sides of the upper end face of the splicing plate (2). The storage component is connected to the locking component. The handle (3) is connected to the storage component. The handle (3) is a split design. The storage component includes a mounting plate (4), a magnetic component (5), and a locking block (6). The mounting plate (4) is connected to the locking component. The magnetic component (5) and the locking block (6) are connected to the mounting plate (4) in parallel. The handle (3) is located in the middle of the mounting plate (4). A connecting shaft passing through the mounting plate (4) is connected to the handle (3). When the connecting component is in use, the handle (3) rotates around the support shaft (10) to drive the moving end of the locking part to move horizontally and engage with the mating part. The handle (3) enters the storage and unfolding state by turning in different directions.

2. The safety protection device for liquid ammonia loading and unloading operations according to claim 1, characterized in that, The handle (3) consists of a fixed plate (7) and a rotating plate (8). The fixed plate (7) has a storage slot, and the mounting plate (4) is rotatably connected to the storage slot.

3. The safety protection device for liquid ammonia loading and unloading operations according to claim 1, characterized in that, The locking component consists of a mounting base (9), a support shaft (10), a drive gear (11), a driven gear (12), a threaded rod (13), and a moving plate (14). The support shaft (10) is rotatably connected to the mounting base (9). Both ends of the support shaft (10) are connected to the connecting shaft and the drive gear (11) respectively. The threaded rod (13) is rotatably connected to the mounting base (9). The moving plate (14) is threadedly connected to the threaded rod (13). The driven gear (12) is connected to one end of the threaded rod (13). The drive gear (11) and the driven gear (12) are meshed and connected for transmission.

4. A safety protection device for liquid ammonia loading and unloading operations according to claim 3, characterized in that, The mounting base (9) consists of a housing (15) and a cover plate (16). The housing (15) is connected to the splicing plate (2). The cover plate (16) is detachably connected to the housing (15) and connected to the mounting base (9).

5. A safety protection device for liquid ammonia loading and unloading operations according to claim 1, characterized in that, The mating part consists of a fixed base (17) and a limiting plate (18). The fixed base (17) has a receiving groove, and the limiting plate (18) is rotatably connected in the receiving groove. One end of the limiting plate (18) is connected to a limiting protrusion.

6. A safety protection device for liquid ammonia loading and unloading operations according to claim 1, characterized in that, Each splicing panel (2) is connected to an extension panel (19).

7. A safety protection device for liquid ammonia loading and unloading operations according to claim 1, characterized in that, Dovetail grooves (20) and dovetail blocks (21) are provided on both sides of the splicing plate (2), and the dovetail grooves (20) and dovetail blocks (21) of adjacent splicing plates (2) are slidably connected.

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