An experimental device for in-box testing in the cargo hold of a foldable container ship

Abstract

The present invention relates to an in-container test experiment device in the cargo hold of a foldable container ship, which includes a spreader main body composed of a main frame. A rotating shaft is arranged in the middle of the spreader main body, and the spreader main body is divided into two parts of spreaders through the rotating shaft. The rotating shaft is equipped with a fixed bolt. Container feet are arranged at the bottoms of the main frames of the two parts of spreaders, and several 20-foot standard containers or several 40-foot standard containers are fixed through the container feet. Several lifting eye plates are arranged above the main frame of the spreader main body. When using the present invention, two 40-foot or four 20-foot container experiments can be carried out at one time; if in a special position, the jig can be folded, and two 20-foot containers can be lifted at one time, reducing the number of lifts, saving the lifting cost, shortening the time of the in-container test experiment, improving the in-container test efficiency, thereby achieving the purpose of shortening the shipbuilding cycle and reducing the ship manufacturing cost.

Description

Technical Field

[0001] The present invention relates to the technical field of container ship testing, and more particularly, to a collapsible in-cargo hold container testing device for container ships. Background Art

[0002] Container ships, also known as "container vessels", are mainly used for the maritime transportation of containers. Some of the containers on the ship are fixed on the hatch covers / main decks, and some are fixed in the cargo holds; among them, the containers in the cargo holds are fixed and limited by bottom cones and guide rails. The bottom cones and guide rails are the difficulties in the precision control of container ships, and the container testing is also a key factor affecting the construction cycle of the entire container ship.

[0003] In the prior art, when conducting container testing, only one container can be lifted at a time, and each container position needs to be lifted once. Compared with a 40-foot container, the time required to lift a 20-foot container will double, greatly increasing the time for container testing and affecting the ship construction cycle. Currently, there is no container testing device that can lift multiple containers at one time. Summary of the Invention

[0004] In view of the above-mentioned technical problems, a collapsible in-cargo hold container testing device for container ships is provided.

[0005] The technical means adopted by the present invention are as follows:

[0006] A collapsible in-cargo hold container testing device for container ships includes a spreader main body, which is composed of a main frame. A rotating shaft is arranged in the middle of the spreader main body, and the spreader main body is divided into two parts of spreaders by the rotating shaft. The rotating shaft is equipped with a fixed pin. Container feet are arranged at the bottoms of the main frames of the two parts of spreaders, and several 20-foot standard containers or several 40-foot standard containers are fixed through the container feet. A plurality of lifting eye plates are arranged above the main frame of the spreader main body.

[0007] Further, the main frame is connected by a plurality of I-beams. The main frame of a single spreader includes a long side part and a short side part. Two intermediate long side parts in the length direction are arranged between the long side part and the short side part. The frame formed by the long side part and the short side part can accommodate two 20-foot standard containers arranged side by side, and a plurality of I-beams serving as reinforcing ribs are arranged in the frame.

[0008] Further, fixed container corners are arranged above the main frame of the spreader main body for connecting the upper and lower parts of the spreader by cooperating with twist locks after the spreader main body rotates around the rotating shaft.

[0009] Furthermore, the lifting eye plates of each spreader include a pair of upper lifting eye plates disposed above the main frame and two pairs of lower lifting eye plates disposed below the main frame. The upper lifting eye plates of the two spreaders are both arranged at the center of the spreader, but they are arranged in a spatially offset manner, so that the positions of the two upper lifting eye plates do not interfere after the two parts of the spreader are flipped and combined.

[0010] Furthermore, the container feet provided at the bottom of the main frame are movable container feet with adjustable positions.

[0011] Furthermore, the movable container feet include a fixing member and a sliding assembly inside. The upper part of the fixing member is connected to the main frame, the lower part of the fixing member is connected to the container feet, a slider is provided inside the fixing member, a bearing is provided on the side of the slider, a nut slideway is provided on the side of the fixing member, a nut is provided in the nut slideway, and a bolt passes through the nut and is connected to the bearing.

[0012] Compared with the prior art, the present invention has the following advantages: The present invention can improve the efficiency of in-box testing in the cargo hold of a container ship. When using the present invention, two 40-foot containers or four 20-foot containers can be tested at one time; if in a special position, the jig can be folded, and two 20-foot containers can be lifted at one time, reducing the number of lifts, saving the lifting cost, and at the same time shortening the time of the in-box test and improving the in-box test efficiency, so as to achieve the purpose of shortening the shipbuilding cycle and reducing the ship manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a top view of the spreader of the present invention when lifting a container.

[0015] Figure 2 It is a front view of the spreader of the present invention when lifting a container.

[0016] Figure 3 It is a front view of the movable container corner of the present invention.

[0017] Figure 4 For Figure 3 the B-B cross-sectional view of

[0018] In the figure: 1, main frame; 2, movable container foot; 3, lifting eye plate; 4, fixed container corner; 5, rotating shaft; 6, fixed pin hole; 7, fixed pin; 8, fixing piece; 9, slider; 10, bolt; 11, nut; 12, nut slideway; 13, bearing. Specific embodiments

[0019] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant field may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention: the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0024] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.

[0025] In addition, it should be noted that the use of words such as "first", "second" etc. to limit the components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0026] As Figures 1 to 4 shown, an in - box test experiment device in the cargo hold of a foldable container ship is disclosed in an embodiment of the present invention, which includes a spreader main body. The spreader main body is composed of a main frame 1. A rotating shaft 5 is arranged in the middle of the spreader main body. The spreader main body is divided into two parts of spreaders by the rotating shaft. A fixed pin hole 6 is arranged in the middle of the rotating shaft, and a fixed pin 7 is equipped. The two parts can rotate around the rotating shaft, and the relative positions of the two parts of the jig are fixed by using the fixed pin 7. Specifically, after being fixed, 4 twenty - foot or 2 forty - foot standard containers can be fixed by using the container feet. Container feet are arranged at the bottoms of the main frames of the two parts of the spreaders. The fixing of several twenty - foot standard containers or several forty - foot standard containers is completed through the container feet. Several lifting eye plates 3 are arranged above the main frame of the spreader main body.

[0027] The main frame is formed by connecting several I-beams. Specifically, an I-beam is used for welding to form the main structure of the jig. The main frame of a single spreader includes a long side part and a short side part. There are two intermediate long side parts in the length direction between the long side part and the short side part. The frame formed by the long side part and the short side part can accommodate two 20-foot standard containers arranged side by side. Several I-beams serving as reinforcing ribs are arranged inside the frame.

[0028] Above the main frame of the spreader body, a fixed container corner 4 is provided, which is used to connect the upper and lower parts of the spreader with a twist lock after the spreader body rotates around the rotating shaft.

[0029] In this embodiment, 4 lifting eye plates are welded above the main structure to lift the jig of the fixed container. Specifically, each lifting eye plate of the spreader includes a pair of upper lifting eye plates arranged above the main frame and two pairs of lower lifting eye plates arranged below the main frame. The upper lifting eye plates of the two spreaders are both arranged in the center of the spreader, but they are arranged in a staggered position in space, so that the positions of the two upper lifting eye plates do not interfere after the two parts of the spreader are flipped and combined.

[0030] The container feet provided at the bottom of the main frame are movable container feet 2 with adjustable positions.

[0031] The movable container foot includes a fixing member 8 and an internal sliding component. The upper part of the fixing member is connected to the main frame, the lower part of the fixing member is connected to the container foot. A slider 9 is arranged inside the fixing member, a bearing is arranged on the side of the slider, a nut slideway 12 is arranged on the side of the fixing member, a nut 11 is arranged in the nut slideway, and a bolt 10 passes through the nut and is connected to a bearing 13.

[0032] The specific usage steps of the present invention are as follows: Based on the experimental site, judge the optional length of the main frame. If it meets the box test of 4 20-foot containers or 2 40-foot containers, adjust the main frame to the long state. At this time, the two parts of the spreader rotate around the rotating shaft and are arranged flush. The initial setting of the spreader is completed by inserting a fixed pin in the middle of the rotating shaft. Connect the lifting device to the upper lifting eye plate above at present. After the lifting device lifts the whole device, connect the movable container feet to the container to be tested below. If fine adjustment is needed, fine-tune the movable container feet. Specifically, when fixing 4 20-foot containers at a time, due to errors, the container may not match the bottom cone. At this time, fine-tune through the movable container feet. The principle of movement is: turn the bolt 10 fixed on the slider through the bearing 13 to make the slider 9 move inside the structural member 8 to adjust the feet connected to the slider, so as to achieve the purpose of fine adjustment; during the movement of the slider, the nut 11 will also move on the nut slideway 12, and the nut slideway 12 is used to limit the movement range of the nut 11.

[0033] If it does not meet the box test of 4 20-foot containers or 2 40-foot containers, adjust the main frame to the short state. At this time, the two parts of the spreader rotate around the rotating shaft and are butt-jointed. Connect the fixed container corners of the upper and lower parts of the spreader by twist locks to connect the upper and lower parts of the spreader. Connect the lifting device to the lifting eye plate above at present (that is, the lower lifting eye plate in the original state). After the lifting device lifts the whole device, connect the movable container feet to the container to be tested below. If fine adjustment is needed, fine-tune the movable container feet.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A test device for an inner box in the cargo hold of a foldable container ship, characterized in that, It includes a sling body which is composed of a main frame. A rotating shaft is arranged in the middle of the sling body, and the sling body is divided into two parts of slings by the rotating shaft. The rotating shaft is equipped with a fixed bolt. At the bottom of the main frames of the two parts of slings, there are container feet, and the fixation of several 20-foot standard containers or several 40-foot standard containers is completed through the container feet. Above the main frame of the sling body, there are several lifting eye plates; Above the main frame of the sling body, there is a fixed container corner, which is used to connect the upper and lower parts of the sling with a twist lock after the sling body rotates around the rotating shaft; The container feet arranged at the bottom of the main frame are movable container feet with adjustable positions; The movable container feet include a fixing part and a sliding component inside. The upper part of the fixing part is connected to the main frame, the lower part of the fixing part is connected to the container feet. There is a sliding block inside the fixing part, a bearing is arranged on the side of the sliding block, a nut slideway is arranged on the side of the fixing part, a nut is arranged in the nut slideway, and a bolt passes through the nut and is connected to the bearing.

2. The experimental device for the inner box of the collapsible container ship cargo hold according to claim 1, characterized in that, The main frame is connected by several I-beams. The main frame of a single sling includes a long side part and a short side part. There are two intermediate long side parts in the length direction between the long side part and the short side part. The frame formed by the long side part and the short side part can accommodate two 20-foot standard containers arranged side by side, and several I-beams as reinforcing ribs are arranged in the frame.

3. The test device for the inner box of the collapsible container ship cargo hold according to claim 1, wherein, The lifting eye plates of each sling include a pair of upper lifting eye plates arranged above the main frame and two pairs of lower lifting eye plates arranged below the main frame. The upper lifting eye plates of the two slings are both arranged at the center of the sling, but they are arranged in a staggered manner in space, so that the positions of the two upper lifting eye plates do not interfere after the two parts of the sling are flipped and combined.

Images