Ship liquid cargo tank channel

Abstract

The utility model discloses a ship liquid cargo tank channel. The ship liquid cargo tank channel comprises a hatch coaming arranged on a deck, a plurality of steps are arranged on the inner wall of the hatch coaming, a lug plate fixedly connected to the bottom face of the deck is arranged below the steps, a first inclined ladder is installed on the lug plate, the top of the first inclined ladder is connected with the lug plate, and a transfer platform is connected to the bottom of the first inclined ladder. The transfer platform is welded to the cargo tank wall and provided with a second inclined ladder, the top of the second inclined ladder is connected with the transfer platform, and the bottom of the second inclined ladder is connected with a cargo tank bottom plate. The utility model solves the problems of high cost and high construction difficulty in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shipbuilding, especially to a ship liquid cargo hold passage. BACKGROUND

[0002] The existing Chinese utility model patent with the publication number CN217100376U and the name of "Chemical tanker liquid cargo hold passage" discloses a chemical tanker liquid cargo hold passage including a hatch cover, a straight ladder, an intermediate platform, an intermediate inclined ladder, a terminal platform and a terminal inclined ladder. The intermediate platform and the terminal platform are arranged horizontally relative to the ship hold bottom plate and are fixed to the horizontal slot-shaped hold bulkhead through supporting legs. Since the ship usually has multiple liquid cargo hold passages, two platforms (the intermediate platform and the terminal platform) are arranged in each liquid cargo hold passage, which not only increases the cost but also increases the construction difficulty (the difficulty of welding the platform to the slot-shaped hold bulkhead and the difficulty of liquid cargo hold coating). UTILITY MODEL CONTENT

[0003] The utility model aims at the deficiencies in the prior art and provides a ship liquid cargo hold passage which can reduce the cost and construction difficulty.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model ship liquid cargo hold passage is as follows:

[0005] A ship liquid cargo hold passage includes a hatch coaming arranged on a deck, the inner wall of the hatch coaming is provided with a plurality of steps, the lower part of the step is provided with an ear plate fixed to the bottom surface of the deck, a first inclined ladder is installed on the ear plate, the top of the first inclined ladder is connected with the ear plate, the bottom of the first inclined ladder is connected with a transfer platform, the transfer platform is welded to the liquid cargo hold bulkhead, the transfer platform is provided with a second inclined ladder, the top of the second inclined ladder is connected with the transfer platform, and the bottom of the second inclined ladder is connected with the liquid cargo hold bottom plate.

[0006] Preferably, the first inclined ladder is connected with the transfer platform through a first elastic structure on both sides of the bottom of the first inclined ladder, the first elastic structure includes a first vertical plate arranged directly below the bottom of the first inclined ladder, the first vertical plate is fixed to the top surface of the transfer platform, the upper part of the first vertical plate is provided with a first U-shaped plate, one end of the first U-shaped plate is welded with the first vertical plate, and the other end of the first U-shaped plate is welded with the support beam of the first inclined ladder beyond the top surface of the first vertical plate.

[0007] Preferably, a first rib plate is arranged between the first vertical plate and the top surface of the transfer platform to improve the strength of the first vertical plate.

[0008] Preferably, two sides of the second ladder bottom are connected with the liquid cargo tank bottom plate through a second elastic structure, the second elastic structure comprises a second vertical plate located directly below the second ladder bottom, the second vertical plate is fixedly connected to the top surface of the liquid cargo tank bottom plate, and the upper portion of the second vertical plate is provided with a second U-shaped plate, one end of the second U-shaped plate is welded with the second vertical plate, and the other end is welded with the support beam of the second ladder beyond the top surface of the second vertical plate.

[0009] Preferably, a second rib plate for improving the strength of the second vertical plate is arranged between the second vertical plate and the top surface of the liquid cargo tank bottom plate.

[0010] Preferably, one side of the hatch coaming bottom relative to the step is trumpet-shaped.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The ear plate is arranged below the hatch coaming step as a support point, is used for connecting the first inclined ladder, thereby can save a transfer platform, thereby can reduce cost and construction difficulty.

[0013] 2. The first inclined ladder bottom and the second inclined ladder bottom are connected through corresponding elastic structures, so that the first inclined ladder and the second inclined ladder have a certain degree of freedom, and the connecting portions of the first inclined ladder and the second inclined ladder at the upper and lower ends will not be broken when impacted by liquid. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic view of the ship liquid cargo tank passage of the utility model.

[0015] Figure 2 It is Figure 1 the enlarged view of C of 1.

[0016] Figure 3 It is Figure 1 the enlarged view of D of 1.

[0017] Figure 4 It is the structure schematic view of the second elastic structure.

[0018] Wherein, 1 deck, 11 ear plate, 2 hatch coaming, 21 step, 3 first inclined ladder, 4 first elastic structure, 41 first vertical plate, 42 first rib plate, 43 first U-shaped plate, 5 transfer platform, 6 second inclined ladder, 7 second elastic structure, 71 second vertical plate, 72 second rib plate, 73 second U-shaped plate. DETAILED DESCRIPTION

[0019] The utility model is further illustrated below in combination with the drawings and specific embodiments, and it should be understood that these embodiments are only used for illustrating the utility model and are not used for limiting the scope of the utility model, and after reading the utility model, various equivalent modifications of the utility model made by those skilled in the art all fall within the range defined by the claims of the application.

[0020] As Figures 1-4 shown, a ship liquid cargo tank passage, comprising a hatch coaming 2 arranged on a deck 1, the inner wall of the hatch coaming is welded with a plurality of steps 21, the bottom of the hatch coaming is trumpet-shaped relative to one side of the steps, which increases the passing space and avoids the head of the passing personnel, a pair of ear plates 11 is arranged below the steps and fixed to the bottom surface of the deck, a first inclined ladder 3 is installed between the two ear plates, the top of the support beam of the first inclined ladder is welded with the corresponding ear plate, the bottom of the first inclined ladder is connected with a transfer platform 5 through a first elastic structure 4, the first elastic structure comprises a first vertical plate 41 which is directly below the bottom of the first inclined ladder, the first vertical plate is fixed to the top surface of the transfer platform, a first rib plate 42 is welded between the first vertical plate and the top surface of the transfer platform to improve the strength of the first vertical plate, a first U-shaped plate 43 is arranged on the upper part of the first vertical plate, one end of the first U-shaped plate is welded with the first vertical plate, and the other end is welded with the support beam of the first inclined ladder beyond the top surface of the first vertical plate, when the first inclined ladder is impacted by liquid, the first U-shaped plate deforms to play a buffering role, avoiding the connection at the upper and lower ends of the first inclined ladder from being broken, the transfer platform is welded to the liquid cargo tank bulkhead, a second inclined ladder 6 is installed on the front side of the transfer platform, the vertical projections of the first and second inclined ladders are perpendicular to each other, the top of the second inclined ladder is connected with the transfer platform through a bolt assembly, the bottom of the second inclined ladder is connected with the bottom plate of the liquid cargo tank through a second elastic structure 7, the second elastic structure comprises a second vertical plate 71 which is directly below the bottom of the second inclined ladder, the second vertical plate is fixed to the top surface of the bottom plate of the liquid cargo tank, a second rib plate 72 is welded between the second vertical plate and the top surface of the bottom plate of the liquid cargo tank to improve the strength of the second vertical plate, a second U-shaped plate 73 is arranged on the upper part of the second vertical plate, one end of the second U-shaped plate is welded with the second vertical plate, and the other end is welded with the support beam of the second inclined ladder beyond the top surface of the second vertical plate, similarly, when the second inclined ladder is impacted by liquid, the second U-shaped plate deforms to play a buffering role, avoiding the connection at the upper and lower ends of the second inclined ladder from being broken.

[0021] The specific working process and principle of the ship liquid cargo tank passage: the steps, the first inclined ladder, the transfer platform and the second inclined ladder on the hatch coaming constitute the ship liquid cargo tank passage, the ship liquid cargo tank passage only contains one transfer platform, the cost of the ear plate is lower relative to the transfer platform, thereby reducing the production cost, the structure is simpler, and the ear plate does not need to be installed on the slot-shaped bulkhead, the construction difficulty is low, the space occupied is small, and the space in the tank is saved. In addition, the first and second inclined ladders are installed with elastic structures, which improves the safety and prolongs the service life.

Claims

1. A ship liquid cargo tank access comprising a hatch coaming arranged on a deck, characterized in that: The inner wall of the hatch coaming is provided with steps, and the lower part of the steps is provided with an ear plate fixed to the deck bottom surface, a first inclined ladder is installed on the ear plate, the top of the first inclined ladder is connected with the ear plate, a transfer platform is connected to the bottom of the first inclined ladder, the transfer platform is welded to the liquid cargo tank wall, the transfer platform is provided with a second inclined ladder, the top of the second inclined ladder is connected with the transfer platform, and the bottom of the second inclined ladder is connected with the liquid cargo tank bottom plate.

2. A ship liquid cargo tank access as claimed in claim 1, characterized in that: The bottom of the first inclined ladder is connected with the transfer platform through first elastic structures on both sides, the first elastic structures include first vertical plates located directly below the bottom of the first inclined ladder, the first vertical plates are fixed to the top surface of the transfer platform, the upper part of the first vertical plates is provided with first U-shaped plates, one end of the first U-shaped plates is welded with the first vertical plates, and the other end is welded with the support beams of the first inclined ladder beyond the top surface of the first vertical plates.

3. A ship liquid cargo tank access as claimed in claim 2, characterized in that: First rib plates are arranged between the first vertical plates and the top surface of the transfer platform for improving the strength of the first vertical plates.

4. A ship liquid cargo tank access as claimed in claim 1, characterized in that: The bottom of the second inclined ladder is connected with the liquid cargo tank bottom plate through second elastic structures on both sides, the second elastic structures include second vertical plates located directly below the bottom of the second inclined ladder, the second vertical plates are fixed to the top surface of the liquid cargo tank bottom plate, the upper part of the second vertical plates is provided with second U-shaped plates, one end of the second U-shaped plates is welded with the second vertical plates, and the other end is welded with the support beams of the second inclined ladder beyond the top surface of the second vertical plates.

5. A ship liquid cargo tank access as claimed in claim 4, characterized in that: Second rib plates are arranged between the second vertical plates and the top surface of the liquid cargo tank bottom plate for improving the strength of the second vertical plates.

6. A ship liquid cargo tank access as claimed in claim 1, characterized in that: The bottom of the hatch coaming is trumpet-shaped relative to one side of the steps.

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