Watertight hatch cover with escape lock nose

Abstract

The utility model provides a watertight hatch cover with an escape lock nose, one end of the outer side of the watertight hatch cover is rotatably connected with a first bulkhead coaming through a rotating mechanism, and when the watertight hatch cover is closed, sealing strips are installed at the positions where the watertight hatch cover is in contact with the first bulkhead coaming and the second bulkhead coaming on the two sides; an escape lock nose is installed on a second bulkhead coaming at the other end of the watertight hatch cover and comprises a bolt socket, a sleeve, a sealing device, a butterfly bolt and a buckle, one side of the buckle is fixedly connected with the watertight hatch cover, the other side of the buckle is fixedly connected with the bolt socket, the sleeve vertically penetrates through the second bulkhead coaming and is fixedly connected with the second bulkhead coaming, and the sealing device is arranged on the sleeve. The butterfly bolt penetrates through the sleeve and is in threaded connection with the bolt socket, and a sealing device is arranged between the butterfly bolt and the sleeve. According to the utility model, sailors are allowed to quickly open the hatch cover from the inside, the water tightness of the whole hatch cover in a closed state is greatly improved, and seawater is prevented from flowing into the hatch.

Description

Technical Field

[0001] The utility model relates to ship design, and particularly to a watertight hatch cover with an escape lock nose. Background Art

[0002] During the ship design and operation process, ensuring the damaged stability of the ship is a crucial safety requirement. To meet this requirement, the small hatch covers arranged on the watertight interface of the ship must have good watertight performance. This is because in the case of water ingress due to damage, the watertight hatch cover can effectively prevent the water body from further spreading to other compartments, thus ensuring the buoyancy and stability of the ship. Due to the high emphasis on ship safety, some small hatch covers need to be equipped with padlock devices to prevent unauthorized personnel from entering or leaving these critical areas at will. However, this design brings a new problem: when the padlock device is set outside the small hatch cover, in case of an emergency, the personnel inside the compartment will not be able to open the hatch cover from the inside to escape.

[0003] To solve this problem, a special device - an escape lock nose is usually installed on the small hatch cover. The purpose of this device is to allow the crew members trapped inside the compartment to open the padlocked small hatch cover from the inside in case of an emergency on the premise of ensuring safety, so as to escape quickly. However, due to the structural characteristics of the lock nose device itself, it can only be installed on the weathertight small hatch cover and cannot meet the requirement of complete watertightness. This means that in some cases, although the crew members can escape, the watertightness inside the compartment may be affected, thus affecting the overall safety of the ship.

[0004] Currently, the existing solutions often can only meet a single safety requirement. For example, when a padlock device is set on the small hatch cover located in the watertight area, although it can effectively prevent unauthorized personnel from entering, in case of an emergency, the crew members will not be able to open the hatch cover from the inside to escape. On the contrary, if an escape lock nose is installed on the small hatch cover, although the crew members can escape, the watertight performance of the hatch cover cannot be guaranteed. Summary of the Utility Model

[0005] In view of the above background and existing problems, the utility model proposes an innovative design solution. The purpose of this solution is to take into account both the watertight performance of the hatch cover and the escape needs of the crew members, and design an escape lock nose device applicable to the watertight hatch cover. The specific solution is as follows:

[0006] A watertight hatch cover with an escape lock nose, when the watertight hatch cover is closed, both sides are hermetically connected to the first bulkhead panel and the second bulkhead panel respectively. One end of the outer side of the watertight hatch cover is rotatably connected to the first bulkhead panel through a rotating mechanism. Rotating handwheels are arranged on both the inner and outer sides of the watertight hatch cover, and the rotating handwheels on both sides are fixedly connected through a rotating shaft. The watertight hatch cover is provided with a bearing seat for the rotating shaft to pass through.

[0007] When the watertight hatch cover is closed, sealing strips are installed at the contact positions with the first bulkhead coaming and the second bulkhead coaming on both sides;

[0008] An escape lock nose is installed on the second bulkhead coaming at the other end of the watertight hatch cover. The escape lock nose includes a bolt socket, a sleeve, a sealing device, a wing bolt and a buckle. The buckle is in an "L" shape. The first side of the buckle is fixedly connected to the watertight hatch cover, the second side of the buckle is fixedly connected to the bolt socket. The sleeve vertically passes through the second bulkhead coaming and is fixedly connected to the second bulkhead coaming. The wing bolt passes through the sleeve and is threadedly connected to the bolt socket. A sealing device is provided between the wing bolt and the sleeve.

[0009] Further, the sealing device is a composite compression cap sleeved on the wing bolt. The composite compression cap is composed of a flexible gasket and a metal gland. Both the flexible gasket and the metal gland are in a U shape. The flexible gasket is inverted on the end face of the sleeve close to the wing bolt, and the metal gland is buckled on the outer surface of the flexible gasket.

[0010] Further, the sealing device is an O-ring. An annular groove is provided on the end face of the sleeve close to the wing bolt. The O-ring is embedded and installed in the annular groove, and the cross-sectional diameter of the O-ring is greater than the depth of the annular groove.

[0011] Further, an annular rubber gasket is provided between the bolt socket and the sleeve, and the annular rubber gasket is fixedly installed on the end face of the sleeve.

[0012] Further, the escape lock nose is provided with an anti-loss chain, and both ends of the anti-loss chain are fixedly connected to the wing bolt and the second bulkhead coaming respectively.

[0013] The advantages of the present utility model are as follows:

[0014] 1. By designing a new type of escape lock nose device, the present utility model realizes meeting the escape needs of crew members in emergency situations while ensuring the watertight performance. The structure of the device is ingeniously designed, allowing the crew members to quickly open the hatch cover from the inside, and at the same time greatly improving the overall watertightness of the hatch cover in the closed state and preventing seawater from flowing into the cabin.

[0015] 2. Watertight devices are provided at both ends of the sleeve located inside and outside the bulkhead coaming. Through double watertightness, it effectively prevents seawater from entering the cabin through the gaps of the escape lock nose;

[0016] 3. Sealing strips are installed at the contact positions between the watertight hatch cover and the bulkhead coamings on both sides to ensure watertightness and at the same time can play a role in shock absorption and noise reduction;

[0017] 4. The escape lock nose device of the present utility model adopts a composite compression cap or an O-ring as the sealing device, ensuring the sealing performance between the bolt and the sleeve during the rotation of the wing bolt, thus maintaining the watertight performance of the hatch cover.

[0018] 5. By setting the annular rubber gasket and the anti-loss chain, the present utility model further improves the reliability and safety of the device. The annular rubber gasket can effectively prevent water penetration, while the anti-loss chain ensures that the butterfly bolt will not be lost in case of emergency, thus avoiding the blockage of the escape passage.

[0019] 6. The structure of the present utility model is simple and easy to install and maintain. Due to the adoption of standardized components, the device can be conveniently applied to different types of ships, with good versatility and adaptability.

[0020] 7. The escape lock nose device of the present utility model not only improves the safety of the ship, but also provides greater flexibility for ship design and operation. While meeting the safety requirements, the convenience of operation is also taken into account, enabling the crew to escape quickly and safely in case of emergency.

[0021] In summary, the present utility model provides a water-tight hatch escape lock nose device that is both safe and practical, effectively solving the problems existing in the prior art and providing a new solution for ship design and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0023] Figure 1 FIG. [X] is a schematic structural diagram of a water-tight hatch with an escape lock nose for the present utility model;

[0024] Figure 2 FIG. [Y] is a structural diagram of an escape lock nose with double water-tightness in the first embodiment;

[0025] Figure 3 FIG. [Z] is a structural diagram of an escape lock nose with double water-tightness in the second embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0027] To thoroughly understand the present utility model, detailed steps and structures will be presented in the following description to illustrate the technical solution of the present utility model. The preferred embodiments of the present utility model are described in detail below. However, in addition to these detailed descriptions, the present utility model may have other embodiments.

[0028] Referring to Figure 1 As shown, the present utility model provides a watertight hatch cover with an escape lock nose. When the watertight hatch cover 3 is closed, it is hermetically connected to the first bulkhead coaming 1 and the second bulkhead coaming 2 on both sides respectively. One end of the outer side of the watertight hatch cover 3 is rotatably connected to the first bulkhead coaming 1 through a rotating mechanism 4. Rotating handwheels 5 are provided on both the inner and outer sides of the watertight hatch cover 3, and the rotating handwheels 5 on both sides are fixedly connected through a rotating shaft 6. The watertight hatch cover 3 is provided with a bearing seat 7 through which the rotating shaft 6 passes.

[0029] When the watertight hatch cover 3 is closed, sealing strips 8 are installed at the contact positions with the first bulkhead coaming 1 and the second bulkhead coaming 2 on both sides to ensure watertightness and at the same time play a role in shock absorption and noise reduction.

[0030] An escape lock nose 10 is installed on the second bulkhead coaming 2 at the other end of the watertight hatch cover 3. The escape lock nose 10 includes a bolt socket 11, a sleeve 12, a sealing device, a wing bolt 13, and a buckle 14. The buckle 14 is in an "L" shape. The first side of the buckle 14 is fixedly connected to the other end of the watertight hatch cover 3, and the second side of the buckle 14 is fixedly connected to a bolt socket 11. The sleeve 12 vertically passes through the second bulkhead coaming 2 and is fixedly connected to the second bulkhead coaming 2. The wing bolt 13 passes through the sleeve 12 and is threadedly connected to the bolt socket 11. A sealing device is provided between the wing bolt 13 and the sleeve 12 to achieve the watertightness of the escape lock nose 10 inside the cabin.

[0031] To ensure that the escape lock nose 10 can be quickly operated in an emergency, a handle convenient for grasping is designed on the outer side of the wing bolt 13. The handle can be made of rubber or plastic to provide a good grasping feeling and prevent hand slipping.

[0032] An annular rubber gasket 17 is provided between the bolt socket 11 and the sleeve 12. The annular rubber gasket 17 is fixedly installed on the end face of the sleeve 12 to achieve the watertightness of the escape lock nose 10 outside the cabin.

[0033] In the inner side of the cabin of the watertight hatch cover 3 of the present utility model, an escape lock nose 10 is provided. If the crew needs to open the watertight hatch cover 3 from the inside, rotate the butterfly bolt 13 so that the bolt socket 11 is disengaged from the butterfly bolt 13, thereby disconnecting the connection between the buckle 14 and the bulkhead coaming. Subsequently, after operating the rotating handwheel 5 to rotate to a specified angle, the watertight hatch cover 3 can be pushed open. In addition, considering that the watertight hatch cover is arranged at the watertight interface, it is necessary to ensure a certain degree of waterproofness. The escape lock nose 10 of the present utility model is provided with two seals. One seal is provided between the bolt socket 11 and the sleeve 12, and the other seal is provided between the butterfly bolt 13 and the sleeve 12, so that both ends of the sleeve 12 on both sides of the bulkhead coaming are provided with watertight devices, preventing seawater from entering the cabin through the gap of the escape lock nose.

[0034] Embodiment 1

[0035] As Figure 2 shown, in this embodiment, the sealing device is a composite compression cap 15 sleeved on the butterfly bolt 13. The composite compression cap 15 is composed of a flexible gasket 151 and a metal gland 152. Both the flexible gasket 151 and the metal gland 152 are U-shaped. The flexible gasket 151 is buckled on the end face of the sleeve 12 close to the butterfly bolt 13, and the metal gland 152 is buckled on the outer surface of the flexible gasket 151. After the butterfly bolt 13 is tightened, it presses on the outer end face of the metal gland 152, and the watertightness is achieved by squeezing the flexible gasket 151.

[0036] The escape lock nose 10 is provided with an anti-loss chain 18. Both ends of the anti-loss chain 18 are fixedly connected to the butterfly bolt 13 and the second bulkhead coaming 2 respectively.

[0037] Embodiment 2

[0038] As Figure 3 shown, in this embodiment, the sealing device adopts an improved O-ring sealing structure. The sealing device is an O-ring 16. An annular groove is provided on the end face of the sleeve 12 close to the butterfly bolt 13, and the O-ring 16 is embedded and installed in the annular groove. The cross-sectional diameter of the O-ring is larger than the depth of the annular groove. The O-ring 16 is made of a material resistant to corrosion and high temperature, ensuring good sealing performance in harsh environments. In addition, the cross-sectional diameter of the O-ring is slightly larger than the depth of the annular groove, so that when the butterfly bolt 13 is tightened, the O-ring 16 can be squeezed and deformed, thus filling the tiny gap between the sleeve 12 and the butterfly bolt 13 and further improving the sealing effect.

[0039] In summary, the watertight hatch escape lock nose device provided by the present utility model can not only ensure the rapid escape of crew members in emergency situations, but also ensure the watertight performance of the hatch in the closed state, thus safeguarding the overall safety of the ship while ensuring the safety of personnel. By adopting innovative designs such as a composite compression cap, an O-ring sealing structure, an anti-loss chain, and a self-locking mechanism, the present utility model meets different safety requirements while improving the reliability and operational convenience of the device.

[0040] The preferred embodiments of the present utility model have been described above. It should be understood that the present utility model is not limited to the above specific embodiments, and the equipment and structures not described in detail should be understood to be implemented in a common manner in the art; any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present utility model, which does not affect the essence of the present utility model. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A watertight hatch cover with an escape lock nose. When the watertight hatch cover (3) is closed, it is hermetically connected to the first bulkhead coaming (1) and the second bulkhead coaming (2) on both sides respectively. One outer end of the watertight hatch cover (3) is rotatably connected to the first bulkhead coaming (1) through a rotating mechanism (4). Rotating handwheels (5) are provided on both the inside and outside of the watertight hatch cover (3), and the rotating handwheels (5) on both the inside and outside are fixedly connected through a rotating shaft (6). The watertight hatch cover (3) is provided with a bearing seat (7) through which the rotating shaft (6) passes. It is characterized in that, Sealing strips (8) are installed at the contact positions between the watertight hatch cover (3) and the first bulkhead coaming (1) and the second bulkhead coaming (2) on both sides when the watertight hatch cover (3) is closed; An escape lock nose (10) is installed on the second bulkhead coaming (2) at the other end of the watertight hatch cover (3). The escape lock nose (10) includes a bolt socket (11), a sleeve (12), a sealing device, a wing bolt (13) and a buckle (14). The buckle (14) is in an "L" shape. The first side of the buckle (14) is fixedly connected to the watertight hatch cover (3), and a bolt socket (11) is fixedly connected to the second side of the buckle (14). The sleeve (12) vertically passes through the second bulkhead coaming (2) and is fixedly connected to the second bulkhead coaming (2). The wing bolt (13) passes through the sleeve (12) and is threadedly connected to the bolt socket (11). A sealing device is provided between the wing bolt (13) and the sleeve (12).

2. The watertight hatch cover with an escape locking lug as claimed in claim 1, wherein, The sealing device is a composite compression cap (15) sleeved on the wing bolt (13). The composite compression cap (15) is composed of a flexible gasket (151) and a metal gland (152). Both the flexible gasket (151) and the metal gland (152) are in a U shape. The flexible gasket (151) is buckled on the end face of the sleeve (12) close to the wing bolt (13), and the metal gland (152) is buckled on the outer surface of the flexible gasket (151).

3. A watertight hatch cover with an escape lock nose as claimed in claim 1, characterized in that, The sealing device is an O-ring (16). An annular groove is provided on the end face of the sleeve (12) close to the wing bolt (13), and the O-ring (16) is embedded and installed in the annular groove. The cross-sectional diameter of the O-ring is greater than the depth of the annular groove.

4. A watertight hatch cover with an escape lock nose according to claim 2 or 3, characterized in that, An annular rubber gasket (17) is provided between the bolt socket (11) and the sleeve (12), and the annular rubber gasket (17) is fixedly installed on the end face of the sleeve (12).

5. A watertight hatch cover with an escape lock nose as claimed in claim 1, characterized in that, The escape lock nose (10) is provided with an anti-loss chain (18), and both ends of the anti-loss chain (18) are fixedly connected to the wing bolt (13) and the second bulkhead coaming (2) respectively.

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