Anti-pirate device for ship

Abstract

The invention discloses an anti-pirate device for a ship. The anti-piracy device for the ship comprises a stairway, a first inclined ladder leading to a bottom deck is arranged on one side of the stairway, a second inclined ladder leading to a high deck is arranged on the other side of the stairway, a grating is hinged to the side, close to the second inclined ladder, of the stairway, a first lug plate is arranged on the side, away from the hinged end, of the grating, and a second lug plate is arranged on the bottom face of the second inclined ladder. When the first lug plate and the second lug plate are fixedly connected, the grating is fixed to the bottom face of the second inclined ladder, a third lug plate is arranged on the side, close to the first inclined ladder, of the stairway opening, when the first lug plate and the third lug plate are fixedly connected, the grating fixedly blocks the stairway opening, and a first through hole used for being connected with the second lug plate is formed in the end, protruding out of the bottom face of the grating, of the first lug plate. A second via hole used for being connected with the third lug plate is formed in the end, protruding out of the top face of the grille, of the first lug plate, and a first sheath is arranged on one side of the first lug plate around the second via hole. The problem that in the prior art, protection safety is poor is solved.

Description

Technical Field

[0001] The invention relates to the field of shipbuilding, and in particular to an anti-piracy device for ships. Background Art

[0002] The existing Chinese invention patent with publication number CN202481281U and titled "Anti-pirate grille for cargo ships" discloses an anti-pirate grille for cargo ships, which includes a grille, a guard ring, a round steel latch, a latch ear plate, and a latch limiter. The guard ring at the front end of the anti-pirate grille is fixed to the hull structure, so that the grille can be opened and passed through. A latch ear plate is also installed on the upper part of the rear end of the grille, so that the round tube latch can pass through the passage guardrail. The outer end of the latch is bent into a handle shape, and the two sections of the latch are locked and fixed. However, when anti-pirate protection is not needed, the grille also falls on the passage, affecting the normal passage of the crew; when anti-pirate protection is needed, pirates can easily reach their hands through the grille to release the latch limit, and the protection safety is poor. Summary of the invention

[0003] The purpose of the present invention is to provide a ship anti-piracy device that is convenient for passage and has high protection safety in view of the shortcomings of the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the ship anti-piracy device of the present invention is:

[0005] A ship anti-piracy device comprises a staircase, wherein a first inclined ladder leading to a bottom deck is arranged on one side of the staircase, and a second inclined ladder leading to a high deck is arranged on the other side; a grille is hingedly connected to a side of the staircase adjacent to the second inclined ladder, a first ear plate is arranged on a side of the grille away from the hinged end, a second ear plate is arranged on the bottom surface of the second inclined ladder, when the first and second ear plates are fixedly connected, the grille is fixed to the bottom surface of the second inclined ladder, a third ear plate is arranged on a side of the staircase adjacent to the first inclined ladder, when the first and third ear plates are fixedly connected, the grille fixes and blocks the staircase, a first through hole for connecting to the second ear plate is opened at one end of the first ear plate protruding from the bottom surface of the grille, a second through hole for connecting to the third ear plate is opened at one end of the first ear plate protruding from the top surface of the grille, and a first sheath is arranged around the second through hole on one side of the first ear plate.

[0006] Preferably, a retaining ring is threadedly connected to the inner circumference of the first sleeve.

[0007] Preferably, the inner circumferential surface of the first sleeve is provided with a limiting step for blocking the retaining ring.

[0008] Preferably, the third ear plate is an angle steel, the angle steel is provided with a third through hole matching with the second through hole, and a second sheath is provided on the inner side of the angle steel around the third through hole.

[0009] Preferably, a baffle is provided on one side of the angle steel facing the hinged end of the grille.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. When anti-piracy is not required, the first and second ear plates are fixedly connected by a bolt assembly to fix the grille to the bottom surface of the second inclined ladder, thereby facilitating the passage of crew members; when anti-piracy is required, the first and third ear plates are fixedly connected by a bolt assembly to fix the grille to the staircase entrance, and the first sheath prevents pirates from unlocking it, thereby improving the protection safety.

[0012] 2. A retaining ring is hidden in the first sheath, which requires special tools to remove, making it more difficult to unlock the grille and further improving the safety of protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the ship anti-piracy device of the present invention in a non-working state.

[0014] Figure 2 yes Figure 1 Enlarged view of point C.

[0015] Figure 3 It is a cross-sectional view of the connection between the first ear plate and the second ear plate.

[0016] Figure 4 It is a schematic diagram of the working state of the ship anti-piracy device of the present invention.

[0017] Figure 5 yes Figure 4 Enlarged view of point D.

[0018] Figure 6 It is a cross-sectional view of the connection between the first ear plate and the third ear plate.

[0019] Figure 7 It is a structural schematic diagram of the first ear plate.

[0020] Figure 8 Schematic diagram of the structure of the second ear plate.

[0021] Fig. 9 It is a structural schematic diagram of the third ear plate.

[0022] Among them, 1 is a staircase entrance, 11 is a third ear plate, 111 is a third through hole, 112 is a second sleeve, 113 is a baffle, 2 is a first inclined ladder, 3 is a second inclined ladder, 31 is a second ear plate, 311 is a fourth through hole, 4 is a grille, 41 is a first ear plate, 411 is a first through hole, 412 is a second through hole, 413 is a first sleeve, 4131 is a baffle ring, and 4132 is a limiting step. DETAILED DESCRIPTION

[0023] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0024] like Figure 1-9 As shown, a ship anti-piracy device comprises a staircase 1, a first inclined ladder 2 leading to the bottom deck is set up on the front side of the staircase, a second inclined ladder 3 leading to the high deck is set up on the rear side of the staircase, a side wall of the staircase adjacent to the second inclined ladder is hinged with a grille 4, a pair of first ear plates 41 are welded to the side of the grille away from the hinged end, a pair of second ear plates 31 are welded to the bottom surface of the second inclined ladder, a pair of third ear plates 11 are welded to the side of the staircase adjacent to the first inclined ladder, a first through hole 411 is formed at one end of the first ear plate protruding from the bottom surface of the grille, a fourth through hole 311 matching with the first through hole is formed on the second ear plate, the first and fourth through holes are used to fix the grille to the bottom surface of the second inclined ladder through a bolt assembly, a second through hole 412 is formed at one end of the first ear plate protruding from the top surface of the grille, the third ear plate is an angle steel, the angle steel is provided with a third through hole 111 matching with the second through hole, the second and third through holes The grille is fixed and sealed at the stair entrance by a bolt assembly, and a first sheath 413 is welded around the second through hole on the side of the first ear plate facing away from the second ear plate to avoid interference between the first sheath and the second ear plate when the grille rotates. A second sheath 112 is welded around the third through hole on the inner side of the angle steel. Both the first and second sheaths are designed to prevent pirates from turning the bolt assembly to unlock the grille. A baffle 113 is welded on the side of the angle steel facing the hinged end of the grille to block the pirates' sight and reduce the operating space, preventing pirates from unlocking the grille from under the grille. A baffle ring 4131 is threadedly connected to the inner circumference of the first sheath, and the baffle ring is hidden in the first housing and requires special tools to remove, which increases the difficulty of unlocking the grille and further improves the protection safety. A limiting step 4132 for blocking the baffle ring is processed on the inner circumference of the first sheath to prevent the baffle ring from entering too deep and being unable to be removed by special tools.

[0025] The specific working process and principle of a ship anti-piracy device:

[0026] When anti-piracy is not required, the first and second ear plates are fixedly connected by a bolt assembly to fix the grille to the bottom surface of the second inclined ladder. At this time, the grille is in a non-working state, which is convenient for the crew to pass through;

[0027] In case of needing to prevent pirates, remove the bolt assembly between the first and second ear plates, lay down the grille, and let the free end of the grille fall on the step board at the top of the first inclined ladder. At this time, the second through hole is aligned with the fourth through hole. Use a socket wrench to rotate the bolt assembly to fix the grille at the staircase entrance, and then use a special tool to screw the retaining ring into the first sheath for further prevention. At this time, the grille is in working condition to prevent pirates from invading. The special tool can refer to the Chinese invention patent with publication number CN221475024U and the name of "A faucet and angle valve broken wire extractor".

Claims

1. A ship anti-piracy device, characterized in that: It includes a staircase, one side of the staircase is provided with a first inclined ladder leading to the bottom deck, the other side of the staircase is provided with a second inclined ladder leading to the high deck, a grille is hinged on the side of the staircase adjacent to the second inclined ladder, a first ear plate is provided on the side of the grille away from the hinged end, a second ear plate is provided on the bottom surface of the second inclined ladder, when the first and second ear plates are fixedly connected, the grille is fixed to the bottom surface of the second inclined ladder, a third ear plate is provided on the side of the staircase adjacent to the first inclined ladder, when the first and third ear plates are fixedly connected, the grille fixes and blocks the staircase, one end of the first ear plate protruding from the bottom surface of the grille is provided with a first through hole for connecting with the second ear plate, one end of the first ear plate protruding from the top surface of the grille is provided with a second through hole for connecting with the third ear plate, and one side of the first ear plate is provided with a first sheath around the second through hole.

2. The ship anti-piracy device according to claim 1, characterized in that: The inner circumferential surface of the first sleeve is threadedly connected with a retaining ring.

3. The ship anti-piracy device according to claim 2, characterized in that: The inner circumferential surface of the first sleeve is provided with a limiting step for blocking the retaining ring.

4. The ship anti-piracy device according to claim 1, characterized in that: The third ear plate is an angle steel, the angle steel is provided with a third through hole matching with the second through hole, and a second sheath is arranged on the inner side of the angle steel around the third through hole.

5. The ship anti-piracy device according to claim 4, characterized in that: A baffle is arranged on one side of the angle steel facing the hinged end of the grille.

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