Marine LNG power fuel tank box connecting structure

Abstract

The utility model provides a marine LNG power fuel tank box connecting structure which comprises a frame, pre-buried holes and plug pins, a power fuel tank is fixedly connected into the frame, plug pin holes matched with the plug pins correspondingly are formed in the four corners of the bottom of the frame, the pre-buried holes are formed in a deck of a power ship, the pre-buried holes correspond to the plug pin holes one to one, and the plug pins are arranged in the plug pin holes. The bolts are connected with the corresponding embedded holes and the bolt holes in an inserted mode to achieve limiting locking of the frame and the power boat. Through the embedded holes formed in the deck of the power ship and the plug pin holes formed in the bottom corners of the frame, the frame can be quickly locked to the deck of the power ship based on the matched corresponding plug pins, and limiting between the frame and the power ship is achieved.

Description

Technical Field

[0001] This application relates to the field of marine technology, and in particular to a connection structure for a marine LNG-powered fuel tank. Background Technology

[0002] Natural gas, as a clean and efficient gaseous fuel, has become an important energy source for the 21st-century economy due to its significant advantages in environmental impact and energy efficiency. The development of liquefied natural gas (LNG) technology has been accompanied by advancements in energy technology, cryogenic technology, and materials technology, leading to its widespread application in transportation vehicles such as automobiles, ships, airplanes, and trains, as well as in the utilization of cold energy.

[0003] Currently, most marine LNG refueling tanks are fixed to the deck of powered ships and filled using tank trucks, shore stations, or barges. This method is not only time-consuming but also requires suitable filling sites. To address this, researchers have proposed a rapid-change marine LNG refueling tank system. This system involves pre-filling liquefied natural gas (LNG) into the marine LNG refueling tanks. When the marine LNG refueling tanks on the powered ship need filling, they are directly replaced. This method has lower requirements for replacement sites and is more efficient. Therefore, how to quickly fix marine LNG refueling tanks to the deck of powered ships has become a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] To address the aforementioned technical issues, this application provides a connection structure for a marine LNG-powered fuel tank, comprising a frame, pre-embedded holes, and pins. A fuel tank is fixedly connected within the frame, and pin holes corresponding to the pins are provided at the four corners of the bottom of the frame. The pre-embedded holes are located on the deck of the powered vessel, and each pre-embedded hole corresponds one-to-one with a pin hole. The pins are inserted into the corresponding pre-embedded holes and pin holes to achieve the limiting and locking of the frame and the powered vessel.

[0005] In some embodiments, two pin holes are provided at each corner of the bottom of the frame, and the planes in which the two pin holes are located are perpendicular to each other.

[0006] In some embodiments, a guide groove is provided on the lower side of the frame, and a guide rod that matches the guide groove is fixed on the deck of the power ship.

[0007] In some embodiments, the guide groove is an inverted Y-shaped structure.

[0008] In some embodiments, a buffer pad is provided inside the guide groove.

[0009] In some embodiments, the pin hole includes a fixing hole formed on the frame and a connecting block horizontally fixed on the fixing hole. The connecting block has a boss hole, and a compression spring is connected in the boss hole. One end of the compression spring near the pin is connected to a first pressure block, and the other end of the compression spring is connected to a second pressure block that can abut against the boss hole. One end of the second pressure block away from the compression spring is connected to a pressure rod, and the end of the pressure rod away from the second pressure block passes through the boss hole and is placed outside the connecting block. A protrusion matching the boss hole is fixedly connected to the pin.

[0010] In some embodiments, a handle is attached to the upper end of the pin.

[0011] In some embodiments, an operating handle is connected to the end of the pressure bar away from the second pressure block.

[0012] Compared with existing technologies, the marine LNG-powered fuel tank connection structure provided in this application, through the matching of pre-embedded holes and pin holes, allows the frame to be locked to the deck of the power ship using pins. Simultaneously, the guide groove with its inverted Y-shaped structure, matched with the guide rod on the power ship, guides the installation of the marine LNG-powered fuel tank, further improving assembly efficiency. Furthermore, the buffer pads placed within the guide grooves cushion the moment the marine LNG-powered fuel tank falls, thereby reducing the impact force between the tank and the power ship. By incorporating protrusions, boss holes, compression springs, and pressure rods, the pins can be quickly installed and removed from their corresponding pin holes and pre-embedded holes, while ensuring the stability of the connection between the pins and these holes, preventing the pins from falling out during the power ship's rocking motion. Attached Figure Description

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0014] Figure 1 This application shows a front view of the connection structure of a marine LNG-powered fuel tank in some embodiments.

[0015] Figure 2 A bottom view of the frame in some embodiments of this application is shown.

[0016] Figure 3 A top view of the powerboat deck in some embodiments of this application is shown.

[0017] Figure 4 It shows Figure 3 Left view,

[0018] Figure 5 Cross-sectional views of the pin and pin hole connection in some embodiments of this application are shown.

[0019] The reference numerals in the detailed embodiments are as follows:

[0020] 1. Frame, 2. Embedded hole, 3. Pin, 31. Protrusion, 4. Power fuel tank, 5. Pin hole, 51. Handle, 52. Connecting block, 53. Boss hole, 54. Compression spring, 55. First pressure block, 56. Second pressure block, 57. Pressure rod, 58. Third pressure block, 6. Guide groove, 7. Guide rod. Detailed Implementation

[0021] To facilitate understanding of the structure and operation of this application, the following description, in conjunction with the accompanying drawings and optimized embodiments, provides a more comprehensive and detailed account of the application. However, the scope of protection of this application is not limited to the specific embodiments described below. It should be noted that, without affecting the effectiveness of use, the structural features and component dimensions, connection methods, and device sizes in the embodiments of this application can be changed.

[0022] Unless otherwise defined, all technical terms used below have the same meaning as commonly understood by those skilled in the art. The terms "first," "second," and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely for the purpose of distinguishing the corresponding components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "connection" or "connection" are not limited to direct connections, but can refer to indirect connections through other intermediate connecting parts. Terms such as "above," "below," "one side," "the other side," "vertical," and "horizontal" are used only to indicate relative positional relationships; these relative positional relationships change accordingly when the absolute position of the described object changes.

[0023] It should be noted that, in the embodiments of this application, the differential principle of the telescopic cylinder refers to the fact that when oil enters the rodless chamber of the cylinder, because the effective area of ​​the rodless chamber is larger than that of the rod chamber, the hydraulic oil in the rod chamber will flow to the rodless chamber, thereby increasing the extension speed of the cylinder and improving the working efficiency of the host machine.

[0024] Please see Figures 1-5 As shown in the figure, the embodiment of this application provides a connection structure for a marine LNG power fuel tank, including a frame 1, pre-embedded holes 2 and pins 3. A power fuel tank 4 is fixedly connected inside the frame 1. Each of the four corners of the bottom of the frame 1 is provided with a pin hole 5 that matches the pin 3. The pre-embedded holes 2 are set on the deck of the power ship, and the pre-embedded holes 2 and pin holes 5 correspond one-to-one. The pins 3 are inserted into the corresponding pre-embedded holes 2 and pin holes 5 to realize the limiting and locking of the frame 1 and the power ship.

[0025] In the above embodiment, the pre-embedded hole 2 is opened on the deck of the power ship, and the pin hole 5 is set at the four corners of the bottom of the frame 1. Each corner has a pin hole 5 on two mutually perpendicular sides. When each corner has a pin 3 connected to the pin hole 5 and the pre-embedded hole 2, the frame 1 and the power ship can be quickly locked.

[0026] In some embodiments, a guide groove 6 is provided on the lower side of the frame 1, and a guide rod 7 matching the guide groove 6 is fixed on the deck of the power ship.

[0027] In the above embodiments, when the power fuel tank 4 is installed, the installation guidance of the power fuel tank 4 is realized based on the matching of the guide groove 6 and the guide rod 7 on the power ship, which effectively improves the assembly efficiency.

[0028] In the above embodiment, the guide groove 5 has an inverted Y-shaped structure. When there is a slight deviation between the guide rod 6 and the guide groove 5, the guide rod 6 will slide into the guide groove 5 based on the inverted Y-shaped structure, thereby realizing the installation guidance of the power fuel tank 4 and further improving the assembly efficiency.

[0029] In some embodiments, a buffer pad (not shown in the figure) is provided inside the guide groove 6.

[0030] In the above embodiments, by setting a buffer pad in the guide groove 6, the downward movement of the frame 1 can be buffered based on the buffer pad when the guide rod 7 slides into the guide groove 6, effectively reducing the impact force between the power fuel tank 4 and the power ship.

[0031] In some embodiments, the pin hole 5 includes a fixing hole formed on the frame 1 and a connecting block 52 horizontally fixed on the fixing hole. The connecting block 52 has a boss hole 53. A compression spring 54 is connected in the boss hole 53. A first pressure block 55 is connected to one end of the compression spring 54 near the pin 3. A second pressure block 56 that can abut against the boss hole 53 is connected to the other end of the compression spring 54. A pressure rod 57 is connected to one end of the second pressure block 56 away from the compression spring 54. The end of the pressure rod 57 away from the second pressure block 56 passes through the boss hole 53 and is placed outside the connecting block 52. A protrusion 31 that matches the boss hole 53 is fixedly connected to the pin 3.

[0032] In the above embodiment, by providing a protrusion 31, a boss hole 53, a compression spring 54, and a pressure rod 57, when the pin 3 passes through the fixing hole 51 and aligns with the pre-embedded hole 2 on the power ship, the protrusion 31 pushes the compression spring 54 and the second pressure block 56 to move via the first pressure block 55, causing the protrusion 31 on the pin 3 to engage in the boss hole 53 and thus be limited. When it is necessary to pull the pin 3 out of the pin hole 5, the pressure rod 57 pushes the second pressure block 56 to move, and the second pressure block 56 compresses the compression spring 54, thereby pushing the first pressure block 55. At this time, the protrusion 31 on the pin 3 disengages from the boss hole 53, and the operator can then pull out the pin 3. Therefore, this arrangement not only enables quick assembly and disassembly of the pin 3 from the pin hole 5 and the pre-embedded hole 2, but also ensures the stability of the connection between the pin 3 and the pin hole 5 and the pre-embedded hole 2, preventing the pin 3 from falling out of the pin hole 5 and the pre-embedded hole 2 during the rocking of the power ship.

[0033] In some embodiments, the upper end of the pin 3 is connected to a handle 51.

[0034] In the above embodiments, by providing a handle 51 at the upper end of the pin 3, it is easier for operators to assemble and disassemble the pin 3, thereby further improving work efficiency.

[0035] In some embodiments, the end of the pressure rod 57 away from the second pressure block 56 is connected to an operating handle 58.

[0036] In the above embodiments, based on the provided operating handle 58, the pressure rod 57 can be easily pushed to move so that the second pressure block 56 compresses the compression spring 54.

[0037] The foregoing has provided a detailed description of a marine LNG-powered fuel tank connection structure. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A connection structure for a marine LNG-powered fuel tank container, characterized in that, The frame (1), pre-embedded holes (2), and pins (3) are included. A power fuel tank (4) is fixedly connected inside the frame (1). At the four corners of the bottom of the frame (1), there are pin holes (5) that match the pins (3). The pre-embedded holes (2) are set on the deck of the power ship, and the pre-embedded holes (2) and pin holes (5) correspond one-to-one. The pins (3) are inserted into the corresponding pre-embedded holes (2) and pin holes (5) to realize the limiting and locking of the frame (1) and the power ship.

2. The marine LNG-powered fuel tank connection structure as described in claim 1, characterized in that, Two pin holes (5) are provided at each corner of the bottom of the frame (1), and the planes where the two pin holes (5) are located are perpendicular to each other.

3. The marine LNG-powered fuel tank connection structure as described in claim 1, characterized in that, The lower side of the frame (1) is provided with a guide groove (6), and a guide rod (7) matching the guide groove (6) is fixed on the deck of the power ship.

4. The marine LNG-powered fuel tank connection structure as described in claim 3, characterized in that, The guide groove (6) has an inverted Y-shaped structure.

5. The marine LNG-powered fuel tank connection structure as described in claim 3, characterized in that, The guide groove (6) is provided with a buffer pad.

6. The marine LNG-powered fuel tank connection structure as described in claim 1, characterized in that, The pin hole (5) includes a fixing hole opened on the frame (1) and a connecting block (52) horizontally fixed on the fixing hole. The connecting block (52) has a boss hole (53). A compression spring (54) is connected in the boss hole (53). A first pressure block (55) is connected to one end of the compression spring (54) near the pin (3). A second pressure block (56) that can abut against the boss hole (53) is connected to the other end of the compression spring (54). A pressure rod (57) is connected to one end of the second pressure block (56) away from the compression spring (54). The end of the pressure rod (57) away from the second pressure block (56) passes through the boss hole (53) and is placed outside the connecting block (52). A protrusion (31) that matches the boss hole (53) is fixedly connected to the pin (3).

7. The marine LNG-powered fuel tank connection structure as described in claim 6, characterized in that, The upper end of the pin (3) is connected to a handle (51).

8. The marine LNG-powered fuel tank connection structure as described in claim 6, characterized in that, An operating handle (58) is connected to the end of the pressure rod (57) away from the second pressure block (56).

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