A container ship cargo hold rail connecting plate marking device

Abstract

A container ship cargo hold guide rail connecting plate marking device belongs to the technical field of measurement. The device realizes rapid and accurate positioning and marking of the guide rail connecting plate through the combination of the main frame, the telescopic adjusting mechanism and the clamping mechanism. The device main body adopts a multi-bar structure perpendicular to each other to ensure the stability of the reference. The telescopic adjusting mechanism can adjust the position of the line as needed, and cooperate with the plumb line to realize accurate vertical and horizontal positioning. The clamping mechanism can firmly clamp the reference guide rail connecting plate to ensure the stability during marking. The marking method is positioned by the plumb line and calibrated by the reference point to ensure the parallelism and size accuracy of each side surface line of the guide rail connecting plate to be marked, and improve the installation quality and efficiency. The device has simple structure and convenient operation, and is suitable for guide rail connecting plate marking operation under various working conditions, and has wide application prospect. Without the need for multiple people to move the cross bar, the connecting pin and locking knob can be quickly fixed, reducing the number of high work personnel and greatly reducing the safety risk of high-altitude cooperative operation.

Description

Technical Field

[0001] This utility model relates to a marking device for the guide rail connecting plate of a container ship cargo hold, which belongs to the field of measurement technology. Background Technology

[0002] Each cargo hold on a container ship is equipped with vertical guide rails. Containers move along these rails, being lifted into or removed from the hold. The guide rail connecting plate is a crucial component connecting the guide rails to the bulkhead. Before installation, the guide rail connecting plate, already installed on the bulkhead with sufficient length perpendicular to the bulkhead, needs to be marked according to the actual dimensions of the cargo hold. Excess length is then removed before the guide rails are installed. The accuracy of the marking directly affects the verticality and spacing accuracy of the guide rail installation, thus impacting the stability of container loading and unloading.

[0003] In the existing technology, three support fixtures are fixed on the top plate of the bulkhead, and a 10-meter-long aluminum alloy crossbar is erected to span the three guide rails for marking operations. Three people are required above the T-section to complete the fixture fixing, crossbar movement and marking operations. The movement and adjustment of the fixture and crossbar rely on the coordination of multiple people, and the high-altitude operation space is limited, resulting in high risk, high labor costs and low work efficiency.

[0004] Document CN 218673671 U discloses a reciprocating plumb bob frame for easy erection in mining surveying. The frame can realize the reciprocating movement of the plumb bob, but the device is large in size and cannot be fixed. It is not suitable for marking operations on the guide rail connecting plate of container cargo hold, where the operating space is small and high-altitude operations are required.

[0005] Document CN1102909C discloses an elevator installation method and device, which uses a plumb bob to locate the positions of various components to be installed. However, this method and device require damaging the surface of the installation measuring device, and is not suitable for installation on container guide rail connecting plates. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a marking device for the guide rail connecting plate of a container ship, which improves the marking accuracy of the guide rail connecting plate, thereby ensuring the verticality and spacing accuracy of the guide rail installation and ensuring the stability of container loading and unloading.

[0007] The technical solution adopted by this utility model is: a marking device for a guide rail connecting plate of a container ship cargo hold, characterized in that: the device includes a device body, a telescopic adjustment mechanism and a connecting plate clamping mechanism; The main body of the device includes a first clamping rod, a first longitudinal auxiliary rod, a second longitudinal auxiliary rod, and a third transverse auxiliary rod; the first longitudinal auxiliary rod and the second longitudinal auxiliary rod are respectively connected to the first clamping rod through longitudinal connecting parts and connecting bolts; the first longitudinal auxiliary rod and the second longitudinal auxiliary rod are connected to the third transverse auxiliary rod through transverse connecting parts and connecting bolts; In the telescopic adjustment mechanism, the telescopic hanging rod slides longitudinally along the longitudinal rod groove provided on the longitudinal auxiliary rod. After the telescopic hanging rod slides to the designated position, the telescopic hanging rod is fixed to the longitudinal auxiliary rod by adjusting bolts. A small hole for passing wire is provided at the end of the telescopic hanging rod that extends out of the longitudinal rod groove. In the connecting plate clamping mechanism, the connecting pin passes through the second clamping rod and the first clamping rod in sequence, and a locking knob is provided at the end that passes through the first clamping rod. The second clamping rod and the first clamping rod are provided with a gap for the guide rail connecting plate to be inserted.

[0008] Furthermore, both the first longitudinal auxiliary rod and the second longitudinal auxiliary rod are perpendicular to the first clamping rod, and the third transverse auxiliary rod is perpendicular to the first longitudinal auxiliary rod and the second longitudinal auxiliary rod.

[0009] Furthermore, the telescopic adjustment mechanism includes a first telescopic adjustment mechanism and a second telescopic adjustment mechanism. In the first telescopic adjustment mechanism, the first telescopic hanging rod slides longitudinally along the first longitudinal rod groove provided on the first longitudinal auxiliary rod. After the first telescopic hanging rod slides to the designated position, the first telescopic hanging rod is fixed to the first longitudinal auxiliary rod using a first adjusting bolt. A first wire passage hole is provided at the end of the first telescopic hanging rod that extends out of the first longitudinal rod groove. In the second telescopic adjustment mechanism, the second telescopic hanging rod slides longitudinally along the second longitudinal rod groove provided on the second longitudinal auxiliary rod. After the second telescopic hanging rod slides to the designated position, the second telescopic hanging rod is fixed to the second longitudinal auxiliary rod using the second adjusting bolt. A second wire passage hole is provided at the end of the second telescopic hanging rod that extends out of the second longitudinal rod groove.

[0010] Furthermore, a first plumb line passes through the first through hole, and a second plumb line passes through the second through hole.

[0011] Furthermore, a first reference point is provided on the first clamping rod, and a second reference point is provided on the second clamping rod, with the first reference point and the second reference point located on the center line of the rectangle formed by the first longitudinal auxiliary rod, the second longitudinal auxiliary rod, and the third transverse auxiliary rod of the first clamping rod.

[0012] Compared with existing technologies, this utility model has the following advantages: The device, through a combination of a main frame, a telescopic adjustment mechanism, and a clamping mechanism, achieves rapid and precise positioning and marking of the guide rail connecting plate. The main body of the device adopts a multi-bar structure with mutually perpendicular members to ensure benchmark stability; the telescopic adjustment mechanism can adjust the hanging line position as needed, and, in conjunction with a plumb line, achieve precise vertical and horizontal positioning; the clamping mechanism can firmly clamp the benchmark guide rail connecting plate, ensuring stability during the marking process. The marking method, through plumb line positioning and benchmark point calibration, ensures the parallelism and dimensional accuracy of the lines on each side of the guide rail connecting plate to be marked, improving installation quality and efficiency. This device has a simple structure, is easy to operate, and is suitable for marking guide rail connecting plates under various working conditions, possessing broad application prospects.

[0013] This device can reduce the number of people required for marking the guide rail connection plate on container ships from three to one, thereby improving work efficiency and reducing labor costs. It eliminates the need for multiple people to coordinate the movement of the crossbar, and can be quickly fixed by connecting pins and locking knobs, reducing the number of people required for high-altitude operations and significantly reducing the safety risks of high-altitude collaborative operations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a top view of a marking device for a guide rail connecting plate on a container ship.

[0017] Figure 2 This is a front view of a marking device for a guide rail connecting plate on a container ship.

[0018] Figure 3 This is a left view of a marking device for a guide rail connecting plate on a container ship.

[0019] Figure 4 This is a right view of a marking device for a guide rail connecting plate on a container ship.

[0020] Figure 5 This is a schematic diagram of the use of a marking device for a guide rail connection plate in a container ship cargo hold.

[0021] In the diagram: 1. Main body of the device; 2. Second clamping rod; 3. Connecting pin; 4. Locking knob; 5. Bulkhead; 6. Reference guide rail connecting plate; 7. Guide rail connecting plate to be marked; 8. First dimension; 9. Ground box foot reference point; 11. First clamping rod; 12. First longitudinal auxiliary rod; 121. First telescopic hanging rod; 1211. First vertical line; 122. First adjusting bolt; 123. First through hole; 124. First longitudinal rod groove; 13. Second longitudinal auxiliary rod; 131. Second telescopic hanging rod; 1312. Second vertical line; 132. Second longitudinal rod groove; 133. Second adjusting bolt; 134. Second through hole; 14. Third transverse auxiliary rod; 15. Longitudinal connector; 151. Transverse connector; 16. Connecting bolt; 17. First reference point; 18. Second reference point. Detailed Implementation

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0026] Figures 1 to 4 A marking device for a guide rail connecting plate of a container ship cargo hold is shown. The device includes a main body, a telescopic adjustment mechanism, and a connecting plate clamping mechanism. The main body 1 of the device includes a first clamping rod 11, a first longitudinal auxiliary rod 12, a second longitudinal auxiliary rod 13, and a third transverse auxiliary rod 14. The first longitudinal auxiliary rod 12 and the second longitudinal auxiliary rod 13 are respectively connected to the first clamping rod 11 through a longitudinal connector 15 and a connecting bolt 16. The first longitudinal auxiliary rod 12 and the second longitudinal auxiliary rod 13 are connected to the third transverse auxiliary rod 14 through a transverse connector 151 and a connecting bolt 16. The first longitudinal auxiliary rod 12 and the second longitudinal auxiliary rod 13 are both perpendicular to the first clamping rod 11, and the third transverse auxiliary rod 14 is perpendicular to the first longitudinal auxiliary rod 12 and the second longitudinal auxiliary rod 13.

[0027] The telescopic adjustment mechanism includes a first telescopic adjustment mechanism and a second telescopic adjustment mechanism. In the first telescopic adjustment mechanism, the first telescopic hanging rod 121 slides longitudinally along the first longitudinal rod groove 124 provided on the first longitudinal auxiliary rod 12. After the first telescopic hanging rod 121 slides to a designated position, the first telescopic hanging rod 121 is fixed to the first longitudinal auxiliary rod 12 using a first adjusting bolt 122. A first wire-passing hole 123 is provided at the end of the first telescopic hanging rod 121 extending out of the first longitudinal rod groove 124. In the second telescopic adjustment mechanism, the second telescopic hanging rod 131 slides longitudinally along the second longitudinal rod groove 132 provided on the second longitudinal auxiliary rod 13. After the second telescopic hanging rod 131 slides to a designated position, the second telescopic hanging rod 131 is fixed to the second longitudinal auxiliary rod 13 using a second adjusting bolt 133. A second wire-passing hole 134 is provided at the end of the second telescopic hanging rod 131 extending out of the second longitudinal rod groove 132. The first vertical line passes through the first through hole 123, and the second vertical line passes through the second through hole 134.

[0028] In the connecting plate clamping mechanism, the connecting pin 3 passes through the second clamping rod 2 and the first clamping rod 11 in sequence, and a locking knob 4 is provided at the end that passes through the first clamping rod 11. The second clamping rod 2 and the first clamping rod 11 are provided with a gap for the guide rail connecting plate to be inserted.

[0029] A first reference point 17 is provided on the first clamping rod 11, and a second reference point 18 is provided on the second clamping rod 2. The first reference point 17 and the second reference point 18 are located on the center line of the rectangle formed by the first longitudinal auxiliary rod 12, the second longitudinal auxiliary rod 13, and the third transverse auxiliary rod of the first clamping rod 11. For ease of explanation, refer to... Figure 5 In the usage scenario diagram, the direction perpendicular to the reference guide rail connecting plate 6 and the bulkhead 5 is defined as the length direction of the guide rail connecting plate, hereinafter referred to as the length direction, and the dimension in this direction is the length; the direction parallel to the reference guide rail connecting plate 6 and the bulkhead 5 is defined as the width direction of the guide rail connecting plate, hereinafter referred to as the width direction, and the dimension in this direction is the width; the direction perpendicular to the height of the bulkhead 5 is defined as the height. The two sides that determine the width of the guide rail connecting plate are the first side and the second side, respectively; the surface on the cantilever side that determines the length of the guide rail connecting plate is the end face.

[0030] Before installing the guide rails on container ships, guide rail connecting plates need to be welded to bulkhead 5, and then the guide rails are welded to the guide rail connecting plates for fixation and installation. Because the space of specific cargo holds varies, the length of the installed guide rail connecting plates is left with a margin, requiring cutting according to the actual site conditions, with the cutting based on marking lines. Before the marking work, all guide rail connecting plates have been welded to bulkhead 5, with the reference guide rail connecting plate 6 at the top. The container guide rail connecting plate marking work refers to marking lines on a series of guide rail connecting plates 7 below the reference guide rail connecting plate 6, using the length of the reference guide rail connecting plate 6 as a reference.

[0031] Based on the length of the reference guide rail connecting plate 6 and the distance from the ground box foot reference point 9 to the bulkhead 5 along the length direction, the difference between the distance along the length direction of the ground box foot reference point 9 and the distance along the length direction between the end face of the reference guide rail connecting plate 6 and the bulkhead 5 is calculated and defined as the first dimension 8.

[0032] When using the above technical solution, the length of the guide rail connecting plate 7 to be marked is positioned using the first and second plumb lines installed in the marking device, and marking is performed after positioning; specifically, the following steps are included: S1. Working above the bulkhead 5, the container ship guide rail connecting plate marking device 1 is installed on the reference guide rail connecting plate 6 through the connecting plate clamping structure. S2. Work above the bulkhead 5, install the first plumb line on the first longitudinal auxiliary rod 12, and install the second plumb line on the second longitudinal auxiliary rod 13; S3. Measure the vertical distance between the first vertical line 1211 and the end face of the reference guide rail connecting plate as the first dimension; with the first vertical line 1211 as the baseline, measure the distance to the first dimension of the guide rail connecting plate 7 to be marked, and draw a straight line parallel to the first vertical line 1211 on the first side of the guide rail connecting plate 7 to be marked at this distance. Using the first vertical line 1312 as the baseline, measure the distance to the first dimension of the guide rail connecting plate 7 to be marked, and draw a straight line parallel to the second vertical line 1312 on the second side of the guide rail connecting plate 7 at this distance.

[0033] In some specific embodiments, the line-drawing method includes the following steps: Step 1: Near the middle position of the upper surface of the reference guide rail connecting plate 6, draw the center point of the width in any width direction. Draw a positioning line (hereinafter referred to as the first positioning line) perpendicular to the surface of the bulkhead 5 through this point. Draw a line that bisects the reference guide rail connecting plate 6 along the length direction of the reference guide rail connecting plate 6, which serves as the reference line for the installation of the container ship cargo hold guide rail connecting plate marking device.

[0034] Step 2: Place the container ship cargo hold guide rail connecting plate marking device on the reference guide rail connecting plate 6. The third transverse auxiliary rod 14 is also on the reference guide rail connecting plate 6. Keep the container ship cargo hold guide rail connecting plate marking device stable. Move the container ship cargo hold guide rail connecting plate marking device so that the first reference point 17 and the second reference point 18 are aligned with the first positioning line, respectively, to achieve the positioning of the container ship cargo hold guide rail connecting plate marking device in the installation width direction.

[0035] Step 3: Rotate the locking knob 4, lifting the second clamping rod 2 to engage with the first clamping rod 11, thus fixing the container ship cargo hold guide rail connecting plate marking device onto the reference guide rail connecting plate 6. This achieves the positioning of the container ship cargo hold guide rail connecting plate marking device in the length and vertical directions. At this point, the positioning of the container ship cargo hold guide rail connecting plate marking device in six degrees of freedom is complete.

[0036] Step 4: Suspend the plumb line on the small hole 123 of the telescopic hanging rod, measure the distance from the first plumb line 1211 to the end face of the reference guide rail connecting plate 6, make it equal to the first dimension 8, and tighten the first adjusting bolt 122 to fix it; measure the distance from the second plumb line 1312 to the end face of the reference guide rail, make it equal to the first dimension 8, and tighten the second adjusting bolt 133.

[0037] Step 5: After the plumb bob has stabilized, fix the plumb line on the plane where the ground box foot reference point 9 is located. The plumb line serves as the reference line for drawing the line.

[0038] Step six: By measurement, draw a line on the first side of the guide rail connecting plate 7 to be marked, such that the distance from the perpendicular line to the plane of the first side of the line is equal to the first dimension; draw a line on the second side of the guide rail connecting plate 7 to be marked, such that the distance from the perpendicular line to the plane of the second side of the line is equal to the first dimension. Based on the principle that two points determine a straight line, draw a line on the upper surface of the guide rail connecting plate 7 to be marked, such that the distance from this line to the reference line is equal to the first distance.

[0039] In this method, all vertical guide rail mounting plates to be marked are referenced to the third end face of the same top reference guide rail connecting plate 6, ensuring the verticality of the lines to be marked, the spacing accuracy, and the consistency of the marking of multiple plates to be marked, thereby further ensuring the installation accuracy of the guide rail.

[0040] A marking device for the guide rail connecting plate of a container ship cargo hold includes a main body 1, a second clamping rod 2, a connecting pin 3, and a locking knob 4. The main body 1 includes a first clamping rod 11, a first longitudinal auxiliary rod 12, a second longitudinal auxiliary rod 13, and a third transverse auxiliary rod 14. A first reference point 17 is set on the first clamping rod 11, and a second reference point 18 is set on the third transverse auxiliary rod 14. The second reference point 18 is on the auxiliary rod, and the first reference point 17 and the second reference point 18 are located on the center line of the rectangle formed by the first clamping rod 11, the first longitudinal auxiliary rod 12, the second longitudinal auxiliary rod 13, and the third transverse auxiliary rod 14. The auxiliary rod is connected to the first clamping rod 11 by a connector 15 and a connecting bolt 16. The auxiliary rod has a telescopic hanging rod, and the hanging rod has a small hole 123 at the end of the rod to suspend a plumb bob to form a vertical line. The bolt positioning hole is fixed to the auxiliary rod by adjusting bolt 122.

[0041] The scalable structure can adapt to different probe depth requirements.

[0042] The first clamping rod 11, the second clamping rod 2, the first longitudinal auxiliary rod 12, the second longitudinal auxiliary rod 13, and the third transverse auxiliary rod 14 are square aluminum alloy profiles, and the telescopic hanging rod is installed in the profile track; the connector 15 is a standard aluminum alloy connector 15.

[0043] The clamping rod and auxiliary rod can also be made of other materials and have different interface shapes. Standard aluminum profiles are preferred because the materials are readily available, have low manufacturing and maintenance costs, and are highly reproducible. In addition, aluminum profiles are lightweight and have high strength, which not only meets the needs but also makes it more convenient and labor-saving.

[0044] The connecting pin 3 passes through the first clamping rod 11 and the second clamping rod 2. It is fixed on one side of the first clamping rod 11 by a locking knob. After the locking knob 4 is screwed in, the connecting pin 3 is processed so that the locking knob 4 cannot be dislodged.

[0045] Considering that the marking operation involves working at height, the first clamping rod 11 and the second clamping rod 2 are movably connected together. However, the second clamping rod 2 will not fall off due to the connecting pin 3 detaching from the first clamping rod 11, thus avoiding the risk of falling objects from height. At the same time, all necessary accessories are connected to the main body 1 of the device, which facilitates operation, saves time, and improves production efficiency.

[0046] Laser positioning can also be used to replace plumb bobs for vertical positioning. The laser emitter is aligned with the reference guide rail and a straight line is projected onto the marking board. However, laser equipment is expensive and easily interfered with in strong light environments. This invention uses a plumb bob structure, which is low in cost, has strong anti-interference capabilities, and is more suitable for the shipyard's on-site operating environment.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A marking device for a guide rail connecting plate of a container ship cargo hold, characterized in that: The device includes a main body, a telescopic adjustment mechanism, and a connecting plate clamping mechanism; The main body (1) of the device includes a first clamping rod (11), a first longitudinal auxiliary rod (12), a second longitudinal auxiliary rod (13), and a third transverse auxiliary rod (14); the first longitudinal auxiliary rod (12) and the second longitudinal auxiliary rod (13) are respectively connected to the first clamping rod (11) through a longitudinal connector (15) and a connecting bolt (16); the first longitudinal auxiliary rod (12) and the second longitudinal auxiliary rod (13) are connected to the third transverse auxiliary rod (14) through a transverse connector (151) and a connecting bolt (16). In the telescopic adjustment mechanism, the telescopic hanging rod slides longitudinally along the longitudinal rod groove provided on the longitudinal auxiliary rod. After the telescopic hanging rod slides to the designated position, the telescopic hanging rod is fixed to the longitudinal auxiliary rod by adjusting bolts. A small hole for passing wire is provided at the end of the telescopic hanging rod that extends out of the longitudinal rod groove. In the connecting plate clamping mechanism, the connecting pin (3) passes through the second clamping rod (2) and the first clamping rod (11) in sequence, and a locking knob (4) is provided at one end of the first clamping rod (11). The second clamping rod (2) and the first clamping rod (11) are provided with a gap for the guide rail connecting plate to be inserted.

2. The marking device for the guide rail connecting plate of a container ship cargo hold according to claim 1, characterized in that: The first longitudinal auxiliary rod (12) and the second longitudinal auxiliary rod (13) are both perpendicular to the first clamping rod (11), and the third transverse auxiliary rod (14) is perpendicular to the first longitudinal auxiliary rod (12) and the second longitudinal auxiliary rod (13).

3. The container ship cargo hold guide rail connecting plate marking device according to claim 2, characterized in that: The telescopic adjustment mechanism includes a first telescopic adjustment mechanism and a second telescopic adjustment mechanism. In the first telescopic adjustment mechanism, the first telescopic hanging rod (121) slides longitudinally along the first longitudinal rod groove (124) provided on the first longitudinal auxiliary rod (12). After the first telescopic hanging rod (121) slides to the designated position, the first telescopic hanging rod (121) is fixed to the first longitudinal auxiliary rod (12) by the first adjusting bolt (122). The end of the first telescopic hanging rod (121) extending out of the first longitudinal rod groove (124) is provided with a first wire passage hole (123). In the second telescopic adjustment mechanism, the second telescopic hanging rod (131) slides longitudinally along the second longitudinal rod groove (132) provided on the second longitudinal auxiliary rod (13). After the second telescopic hanging rod (131) slides to the designated position, the second telescopic hanging rod (131) is fixed to the second longitudinal auxiliary rod (13) by the second adjusting bolt (133). The end of the second telescopic hanging rod (131) extending out of the second longitudinal rod groove (132) is provided with a second wire passage hole (134).

4. A marking device for a container ship cargo hold guide rail connecting plate according to claim 3, characterized in that: A first vertical line passes through the first through hole (123), and a second vertical line passes through the second through hole (134).

5. A marking device for a container ship cargo hold guide rail connecting plate according to claim 4, characterized in that: A first reference point (17) is set on the first clamping rod (11), and a second reference point (18) is set on the second clamping rod (2). The first reference point (17) and the second reference point (18) are located on the center line of the rectangle formed by the first clamping rod (11), the first longitudinal auxiliary rod (12), the second longitudinal auxiliary rod (13), and the third transverse auxiliary rod.

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