Marine container binding test tool

Abstract

The utility model discloses a binding test tool for a marine container, which relates to the technical field of shipbuilding and comprises a frame, and the head and tail lengths of the frame are consistent with those of containers stacked on a real ship; the left-right width of the frame is consistent with the left-right width of containers stacked on a real ship. The vertical height of the frame is consistent with the vertical height of containers stacked on a real ship. Container corner fittings are fixedly installed at the head end and the tail end of the frame in the positions corresponding to corners of all layers of containers. And a lifting lug is arranged at the top of the frame. When used on a ship, firstly, a wharf crane is used for connecting the lifting lugs; after the tool is firmly fixed on the cargo hold cover, the binding rod can be used for connecting the eye plate on the binding bridge and other container corner fittings on the tool according to the instruction of a ship cargo binding manual to carry out a binding test, and the head and tail surfaces of the tool can be tested at the same time; the lifting requirement can be met through one-time lifting, so that the lashing bridge inspection efficiency is improved, and the container ship building efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shipbuilding, in particular to a ship container lashing test tool. Background Art

[0002] Stacked containers can remain stable during shipping because each container is equipped with corner assemblies at its corners. These corner assemblies are connected and tightened by twist locks (or other types of locks) to form a solid locking effect, preventing the containers from moving in the vertical direction. The stacked containers are then lashed to the corresponding lashing bridges using lashing rods.

[0003] This container securing method requires certain precision in the installation of the lashing bridges. Otherwise, the containers will become unstable due to inaccurate lashing bridges. During the shipbuilding phase, there was no suitable tooling to simulate the positioning accuracy of the lashing bridges. Traditionally, the simulation method involved stacking containers layer by layer using a crane and then securing them with the lashing bridges. This method required each standard container to be hoisted sequentially, wasting significant lifting resources and time, labor, and impacting shipbuilding efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a ship container lashing test tool, which can simulate the lashing effect of stacked containers, meet the lifting requirements with a one-time lifting, and improve the construction efficiency of container ships.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a ship container lashing test tool, comprising a frame, wherein the front and rear lengths of the frame are consistent with the front and rear lengths of the containers stacked on the actual ship; the left and right widths of the frame are consistent with the left and right widths of the containers stacked on the actual ship; the upper and lower heights of the frame are consistent with the upper and lower heights of the containers stacked on the actual ship; the front and rear ends of the frame are fixedly installed with container corner pieces corresponding to the positions of the corners of each layer of containers; and the top of the frame is provided with lifting lugs.

[0006] After adopting the above structure, when used on board a ship, first use the dock crane to connect the lifting eyes and lift the tooling onto the ship to the ROW position where testing is required; the container corner fittings at the bottom of the tooling are fixed to the container corners on the cargo hatch cover on board the ship by twist locks; after the tooling is securely fixed to the cargo hatch cover, the lashing rods can be used to connect the eye plates on the lashing bridge and other container corner fittings on the tooling according to the instructions in the ship's cargo lashing manual to carry out lashing tests, and the fore and aft surfaces of the tooling can be tested simultaneously; this achieves the goal of meeting lifting requirements with a one-time lifting operation, thereby improving the inspection efficiency of the lashing bridge and the construction efficiency of container ships.

[0007] Preferably, the frame is provided with multiple compartments in the vertical direction, with stairways between the compartments of adjacent layers. Each layer of compartments is provided with a passage connecting the corner fittings of each container on that layer. This structure facilitates climbing of the tooling, thereby better completing the lashing work.

[0008] Preferably, guardrails are provided on both sides of the passage. Through this arrangement, safe operation is guaranteed.

[0009] Preferably, a lashing experiment can be performed simultaneously to simulate stacking containers of two different sizes. The two sizes of containers have the same length from head to tail and width from left to right, but different heights. The number of container corner fittings required varies depending on the number of container layers on the frame. The relationship between the number of container corner fittings Q on any given layer of the frame and the number of container layers N is: Q = N. The spacing between adjacent container corner fittings on that layer is equal to the height difference between the two sizes of containers. This setup can expand the scope of use of the tooling and significantly enhance its applicability.

[0010] Preferably, vertical mounting holes are provided on the frame columns, with the number and location of the mounting holes corresponding to the number and location of the container corner fittings on that floor. The container corner fittings can be adjusted to fit in different mounting holes. This arrangement reduces the overall cost of the tooling and eases the manufacturing process.

[0011] Preferably, the container corner fitting includes a fixing plate, a standard corner fitting mounted on the front side of the fixing plate, and a pin mounted on the rear side of the fixing plate. The pin is inserted into the mounting hole and can rotate within the mounting hole. The end of the pin extending through the mounting hole is provided with a pin hole, in which an elastic pin is installed. The left side of the fixing plate is provided with a left baffle that bends toward the rear side of the fixing plate, and the right side of the fixing plate is provided with a right baffle that bends toward the rear side of the fixing plate. The left and right baffles are respectively located above and below the pin, and the left-right distance between them is equal to the width of the column. This arrangement allows for quick installation of the container corner fitting and evenly distributes the force applied to the container corner fitting to the column, preventing it from falling out of the mounting hole due to stress.

[0012] Preferably, the left baffle is provided with a left flange that curves toward the right baffle at one end away from the fixed plate, and the right baffle is provided with a right flange that curves toward the left baffle at one end away from the fixed plate. This arrangement increases the contact area between the container corner fitting and the column, better ensuring the positioning of the container corner fitting and preventing deformation of the container corner fitting caused by concentrated force.

[0013] Preferably, the pin is located at the center of the standard corner fitting. This arrangement allows for better force transmission and prevents deformation of the container corner fitting.

[0014] Preferably, the left and right baffles are inlaid with magnets that can be attracted to the sides of the columns. This design can prevent the container corner fittings from rotating arbitrarily.

[0015] Preferably, a positioning shaft is retractably mounted around the pin shaft, and an ejection spring is provided between the positioning shaft and the pin shaft. The ejection spring acts to cause the positioning shaft to extend beyond the pin shaft and become lodged outside the mounting hole. This design can increase the speed of installing and removing container corner fittings.

[0016] After adopting the above technical solution, the beneficial effects of the utility model are:

[0017] The utility model discloses a ship container lashing test tool that solves the technical problem in the prior art of low inspection efficiency due to the lack of fixed tooling when inspecting the accuracy of the lashing bridge. The utility model can simulate the lashing effect of stacked containers, and can meet the lifting requirements with a one-time lifting operation, thereby improving the construction efficiency of container ships. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of a ship container lashing test tool of the utility model;

[0019] Figure 2 yes Figure 1 Side view of

[0020] Figure 3 yes Figure 1 Schematic diagram of the installation position of the lashing bridge;

[0021] Figure 4 This is a schematic diagram of the connection between the container corner fittings and the lashing bridge eye plate;

[0022] Figure 5 This is a schematic diagram of the installation structure of the container corner fittings and columns in the second embodiment;

[0023] Figure 6 yes Figure 5 Exploded diagram;

[0024] Figure 7 It is a structural diagram of container corner fittings.

[0025] In the figure, 1. frame, 11. column, 110. mounting hole, 2. container corner fitting, 21. fixing plate, 211. left baffle, 212. right baffle, 213. left flange, 214. right flange, 215. magnet, 22. standard corner fitting, 23. pin, 231. elastic pin, 3. lifting lug, 4. ladder, 5. guardrail, 6. eye plate. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] The orientations mentioned in this specification are based on the orientations of the ship container lashing test fixture of the present invention during normal operation, and do not limit the orientations during storage and transportation. They only represent relative positional relationships, not absolute positional relationships.

[0028] Example 1:

[0029] like Figure 1 and Figure 2 The following figure shows a test fixture for lashing containers on a ship, comprising a frame 1. The frame 1's length from end to end matches the length of the stacked containers on the ship; its width from side to side matches the width of the stacked containers on the ship; and its height from top to bottom matches the height of the stacked containers on the ship. Container corner fittings 2 are fixed to the frame 1's ends, aligned with the corners of each layer of containers. Lifting lugs 3 are provided on the top of the frame 1.

[0030] like Figure 3 and Figure 4 As shown in the figure, when used on board, first use the dock crane to connect the lifting lug 3, and lift the tooling onto the ship to the ROW position where the test is required. Generally, 3 sets of tooling are required to be placed side by side (such as Figure 4 (as shown); the container corner fitting 2 at the bottom layer of the tooling is fixed to the container corner on the cargo hatch cover on the ship by a twist lock; after the tooling is securely fixed to the cargo hatch cover, the lashing rods can be used to connect the eye plates 6 on the lashing bridge and the other container corner fittings 2 on the tooling according to the instructions in the ship's cargo lashing manual to carry out the lashing test. The fore and aft surfaces of the tooling can also be tested simultaneously.

[0031] Because the frame 1 is quite high, multiple compartments are provided along its vertical axis to facilitate testing and climbing. In this embodiment, each compartment corresponds to a container layer. Stairways 4 are provided between adjacent compartments to facilitate climbing. Each compartment has a passageway connecting the corner fittings 2 of each container on that floor. Walking through the passageway facilitates lashing tests between the container corner fittings 2 and the lashing bridges. Guardrails 5 are provided on both sides of the passageway to ensure operational safety.

[0032] This tool can simultaneously simulate the lashing test of stacked containers of two different sizes. The two sizes have the same length from head to tail and width from left to right, but different heights. For example, a 40-foot container consists of two sizes: a 40-foot container and a 40-foot high cube. These two sizes have the same length from head to tail and width from left to right, but different heights from top to bottom. The outer dimensions of a 40-foot container are 40 feet (12.2 meters) long, 8 feet (2.44 meters) wide, and 8 feet 6 inches (2.59 meters) high, while the outer dimensions of a 40-foot high cube are 40 feet (12.2 meters) long, 8 feet (2.44 meters) wide, and 9 feet 6 inches (2.9 meters) high. The two sizes of containers are randomly stacked in different stacking arrangements, resulting in different heights of the upper container corner fittings 2. The relationship between the number Q of container corner fittings 2 on any corner of frame 1 and the corresponding number of container layers N is: Q = N. Because this embodiment simulates four layers of container stacking, one set of container corner fittings 2 is provided on the first layer, two sets on the second layer, three sets on the third layer, and four sets on the fourth layer. In practical applications, five or six layers can also be simulated, and this embodiment does not limit this. The spacing between adjacent container corner fittings 2 on a layer is equal to the height difference between the two container sizes, which in this embodiment is 0.31 meters.

[0033] Example 2:

[0034] like Figure 5 、 Figure 6 and Figure 7 As shown in the figure, as the number of container layers increases, the number of container corner fittings 2 required also increases. Therefore, when installing the container corner fittings 2, the welding cost, welding efficiency and precision requirements are relatively high. In order to reduce the cost of tooling, improvements are made in this embodiment.

[0035] The columns 11 of the frame 1 are provided with vertical mounting holes 110. The number and location of these holes 110 correspond to the number and location of the container corner fittings 2 on that level. For example, in the fourth level of the simulated container, one column 11 on that level has four mounting holes 110, one above and one below, with the center spacing between each of these holes 110 being 0.31 meters. Container corner fittings 2 are removably mounted in these mounting holes 110, and can be adjusted to fit in different mounting holes 110. During measurement, by adjusting the mounting holes 110 for the container corner fittings 2 on that level, different height combinations of the two containers were tested.

[0036] The container corner fitting 2 includes a fixing plate 21, a standard corner fitting 22 mounted on the front side of the fixing plate 21, and a pin 23 mounted on the rear side of the fixing plate 21. The pin 23 is inserted into the mounting hole 110 and can rotate within the mounting hole 110. The end of the pin 23 that extends through the mounting hole 110 is provided with a pin hole, in which an elastic pin 231 is installed. The left side of the fixing plate 21 is provided with a left baffle 211 that bends toward the rear side of the fixing plate 21, and the right side of the fixing plate 21 is provided with a right baffle 212 that bends toward the rear side of the fixing plate 21. The left baffle 211 and the right baffle 212 are located above and below the pin 23, respectively, and the end-to-end distance between them is equal to the width of the column 11.

[0037] Furthermore, to further stabilize the container corner fitting 2 and increase its contact area with the column 11, a left flange 213 is provided on the end of the left baffle 211 away from the fixed plate 21, curving toward the right baffle 212. A right flange 214 is provided on the end of the right baffle 212 away from the fixed plate 21, curving toward the left baffle 211. This structure forms two grooves with opposite openings between the fixed plate 21, the left baffle 211, and the left flange 213, and between the fixed plate 21, the right baffle 212, and the right flange 214. By rotating the fixing plate 21, the column 11 can be snapped into the two grooves, thus ensuring a more stable installation of the container corner fitting 2.

[0038] After inserting the pin 23 into the mounting hole 110, the elastic pin 231 is then inserted into the pin hole to prevent the container corner fitting 2 from falling out. The fixing plate 21 is rotated, and the left and right baffles 211 and 212 are respectively attached to the sides of the column 11. When the lashing rod is installed on the standard corner fitting 22, it exerts a downward pulling force on the container corner fitting 2, ensuring that the left and right baffles 211 and 212 remain attached to the column 11. This downward pulling force is evenly distributed to the left and right sides of the mounting hole 110 and the column 11. To reposition the container corner fitting 2, simply remove the elastic pin 231 from the pin hole and rotate the fixing plate 21 in the opposite direction to remove the container corner fitting 2.

[0039] In order to increase the force applied to the container corner fitting 2 and prevent its deformation, the pin 23 is located at the center of the standard corner fitting 22 .

[0040] In order to prevent the container corner fitting 2 from rotating randomly, magnets 215 are embedded on the left baffle 211 and the right baffle 212. When the container corner fitting 2 is rotated, the magnets 215 are attracted to the column 11, thereby preventing the container corner fitting 2 from shaking randomly.

[0041] Furthermore, in order to achieve automatic locking of the elastic pin 231, a positioning shaft is installed circumferentially and retractably on the pin shaft 23, and an ejection spring is provided between the positioning shaft and the pin shaft 23. Under the action of the ejection spring, the positioning shaft extends out of the pin shaft 23 and is stuck on the outside of the mounting hole 110; when the positioning shaft is pressed inward, the positioning shaft can be retracted into the pin shaft 23, and then the pin shaft 23 can be pulled out of the mounting hole 110.

[0042] It is worth noting that this mechanism needs to ensure that the mounting hole 110 is a continuous through hole. If the column 11 is a hollow structure, the pin 23 cannot be smoothly inserted and removed. In order to avoid this situation, a cylindrical positioning sleeve can be welded in the mounting hole 110, and the mounting hole 110 is replaced by the positioning sleeve.

[0043] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A ship container lashing test tool, characterized by: The frame comprises a frame, wherein the length from head to tail of the frame is consistent with the length from head to tail of the stacked containers on the actual ship; the left and right width of the frame is consistent with the left and right width of the stacked containers on the actual ship; and the top and bottom height of the frame is consistent with the top and bottom height of the stacked containers on the actual ship; Container corner pieces are fixedly installed at both ends of the frame corresponding to the positions of the corners of the containers on each layer; and a lifting lug is provided on the top of the frame.

2. The ship container lashing test tool according to claim 1, characterized in that: The frame is provided with a plurality of compartments in the upper and lower directions, and a stairway is provided between the compartments of the upper and lower adjacent layers; and a passage connecting the corner fittings of each container on the layer is provided in each compartment.

3. The ship container lashing test tool according to claim 2, characterized in that: Guardrails are arranged on both sides of the passage.

4. The ship container lashing test tool according to claim 1, characterized in that: The system can simultaneously simulate a lashing experiment of stacking containers of two different specifications. The two specifications of the containers have the same length from head to tail and left to right width, but different heights from top to bottom. The number of container corner fittings provided varies depending on the number of layers of containers on the frame. The relationship between the number Q of container corner fittings on the corners of any layer on the frame and the number N of corresponding containers is: Q = N. The spacing between the upper and lower adjacent container corner fittings on the layer is equal to the height difference between the two specifications of the containers.

5. The ship container lashing test tool according to claim 4, characterized in that: Mounting holes are provided in the vertical direction on the columns of the frame, and the number and positions of the mounting holes correspond to the number and positions of the container corner fittings on this layer; the container corner fittings can be installed in different mounting holes with adjustable positions.

6. The ship container lashing test tool according to claim 5, characterized in that: The container corner fitting includes a fixing plate, a standard corner fitting installed on the front side of the fixing plate, and a pin shaft installed on the rear side of the fixing plate; the pin shaft is inserted into the mounting hole and can rotate in the mounting hole; a pin hole is provided at one end of the pin shaft passing through the mounting hole, and an elastic pin is installed in the pin hole; a left baffle bent toward the rear side of the fixing plate is provided on the left side surface of the fixing plate, and a right baffle bent toward the rear side of the fixing plate is provided on the right side surface of the fixing plate, the left baffle and the right baffle are respectively located on the upper and lower sides of the pin shaft, and the left and right distance between the two is equal to the width of the column.

7. The ship container lashing test tool according to claim 6, characterized in that: A left flange bent toward the right baffle is provided on one end of the left baffle away from the fixed plate; a right flange bent toward the left baffle is provided on one end of the right baffle away from the fixed plate.

8. The ship container lashing test tool according to claim 6, characterized in that: The pin is located at the center of the standard angle piece.

9. The ship container lashing test tool according to claim 6, characterized in that: The left baffle and the right baffle are inlaid with magnets, and the magnets can be adsorbed onto the sides of the pillars.

10. The ship container lashing test tool according to claim 6, characterized in that: A positioning shaft is telescopically mounted on the pin shaft, and an ejection spring is arranged between the positioning shaft and the pin shaft. Under the action of the ejection spring, the positioning shaft extends out of the pin shaft and is stuck on the outside of the mounting hole.

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