Guard rail device for container ship hatch covers

Abstract

A protective railing device for container ship hatch covers belongs to the technical field of marine equipment. It utilizes a protruding base in a fixed cargo lashing device welded to the hatch cover surface as an embedded part, and a protective railing post mounting bracket as the base for the protective railing posts, enabling the installation of the protective railing posts, followed by the installation of the protective railing crossbars. The entire device allows for the rapid erection and dismantling of stable protective railings on curved hatch covers, ensuring that the posts remain vertically stable even under shipboard vibrations and dense personnel operations. The device undergoes ultra-thick wall reinforcement and salt spray-tested corrosion protection treatment, meeting the stringent requirements for safety, efficiency, and deck adaptability (avoiding welding / drilling) in high-frequency maintenance and emergency repair tasks.

Description

Technical Field

[0001] This utility model relates to a protective railing device for the hatch cover of a container ship, belonging to the technical field of shipbuilding and construction. Background Technology

[0002] When working at heights, welding, painting, cutting and other operations are carried out in the container ship hatch cover area during construction, maintenance or repair. According to the People's Republic of China industry standard "Safety Technical Specification for High-Altitude Operations in Construction" JGJ 80-2016 (4.1.1), when working near the edge with a fall height reference plane of 2m or more, a guardrail should be installed on the side exposed to the air. (4.3.2) The bottom of the guardrail uprights should be firmly fixed and the embedded parts should be firmly connected to the uprights.

[0003] In reality, guardrails need to be erected frequently. During ship navigation or dock operations, hatch covers may be affected by wind, waves, and vibrations from hoisting equipment, requiring scaffolding to be resistant to micro-vibrations and instantaneous impacts. Furthermore, hatch covers are often curved or sloping structures, making it difficult to stably fix ordinary scaffolding bases, which are prone to slippage or tilting. To ensure the stability of guardrails, welding is often used for the guardrail posts. However, welding takes a long time, making it difficult to meet the requirements of short hatch cover maintenance cycles and rapid disassembly and assembly. Moreover, after the work is completed, it still needs to be cut and dismantled, which is inefficient and easily damages the hatch cover or deck.

[0004] The marine environment is characterized by high salt spray and high humidity, which makes ordinary steel structures prone to corrosion. Therefore, there are special requirements for reusable protective railing devices. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a protective railing device for the hatch cover of container ships. It utilizes the protruding base of the fixed cargo securing equipment as a pre-embedded part for column installation to ensure that the column remains vertical and stable under the conditions of slight vibration during ship navigation and dense personnel operation.

[0006] The technical solution adopted by this utility model is: a protective railing device for the hatch cover of a container ship, the device including the hatch cover and a protruding base of a fixed cargo securing device welded to the hatch cover, a protective railing mounting bracket connected to the protective railing column on the protruding base of the fixed cargo securing device, and a protective railing crossbar mounted on the protective railing column. The protruding base of the fixed cargo securing equipment adopts a hollow shell with an internal mounting cavity and a mounting surface on the top surface, which is provided with mounting holes; The guardrail mounting bracket includes an integrated upright connecting plate and a clamping pad; the upper surface of the upper pad in the integrated upright connecting plate is vertically provided with an interface plate, and the interface plate is provided with an interface plate through hole; a limit pin is fixed on the lower surface of the upper pad; the upper pad is provided with an upper pad through hole at the end away from the interface plate; the clamping pad is a lower pad with a pad stud, the lower pad is placed on the back of the mounting surface, and the pad stud passes through the mounting hole and the upper pad through hole in sequence, and is then locked with bolts; The guardrail post includes a connector and a rod body that mate with the interface of the guardrail mounting bracket, and the connector is provided with a connector stud that mates with the through hole of the interface plate.

[0007] Furthermore, the connector is provided with a connector stud in a direction perpendicular to the rod body.

[0008] Furthermore, the interface board is provided with at least two interface board through holes; the number of connector studs on the connector is the same as the number of interface board through holes.

[0009] Furthermore, the guardrail mounting bracket is made of high-strength Q235 steel, and has undergone ultra-thick wall reinforcement and salt spray test-level anti-corrosion treatment.

[0010] Furthermore, the guardrail posts are made of high-strength galvanized steel pipe or aluminum alloy.

[0011] The method for installing edge protection railings for container ship hatch covers includes the following steps: S1. The lower pad is placed inside the mounting cavity of the protruding base of the fixed cargo securing equipment; S2. Place the upper pad of the integrated pole connecting plate on the mounting surface and insert the limit pin into the mounting hole; S3. After the pad stud passes upward through the mounting hole and the upper pad through hole, it is locked by the nut; install the integrated upright connecting plate onto the protruding base of the fixed cargo securing equipment; S4. Align the joint of the guardrail post with the interface plate through hole of the integrated post connecting plate, and then tighten it with a nut; install the guardrail post onto the guardrail mounting bracket; S5. Install guardrail crossbars between adjacent guardrail posts.

[0012] Compared with the prior art, the present invention has the following advantages: Designed specifically for the rapid erection / removal of stabilizing guardrail devices on curved hatches, the system utilizes the protruding base of fixed cargo lashing equipment as an embedded part for column installation, ensuring that the columns remain vertically stable under shipboard vibrations and dense personnel operations. The entire system undergoes ultra-thick wall reinforcement and salt spray-tested corrosion protection treatment, meeting the stringent requirements for safety, efficiency, and deck adaptability (avoiding welding / drilling) in high-frequency maintenance and emergency repair tasks.

[0013] This design avoids the need for welding the scaffolding posts onto the tanker's roof, reducing damage to the hull and eliminating the need for secondary cutting during dismantling, thus ensuring better vessel quality. The universal modular design allows for post installation simply by installing nuts, increasing installation efficiency by over 50%. After use, the posts can be disassembled and reused multiple times, minimizing material consumption and reducing costs. 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] Figure 1 This is a schematic diagram of the device in use.

[0016] Figure 2 This is a schematic diagram of the protruding base of a fixed cargo securing device.

[0017] Figure 3 This is a schematic diagram of the integrated upright connecting plate of the guardrail mounting bracket.

[0018] Figure 4 This is a schematic diagram of the clamping pad of the guardrail mounting bracket.

[0019] Figure 5 This is a schematic diagram of the guardrail posts.

[0020] In the picture: 1. Hatch cover; 2. Protruding base for fixed cargo securing equipment, 21. Mounting hole, 22. Mounting surface, 23. Mounting hole, 201. Single protruding base, 202. Horizontal double protruding base, 203. Longitudinal double protruding base; 3. Guardrail mounting bracket, 311. Upper pad, 3111. Upper pad through hole, 3112. Limit pin, 312. Lower pad, 3122. Pad stud, 32. Interface plate; 4. Guardrail post; 41. Post body; 42. Joint; 422. Joint stud; 5. Guardrail crossbars. Detailed Implementation

[0021] 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.

[0022] A protective railing device for a container ship hatch cover includes a hatch cover 1 and a fixed cargo securing equipment protruding base 2 welded to the hatch cover 1. Protective railing posts 4 are connected to the fixed cargo securing equipment protruding base 2 via protective railing mounting brackets 3, and protective railing crossbars 5 are mounted on the protective railing posts 4. The fixed cargo securing equipment protruding base 2 is a hollow shell with an internal mounting cavity 23, and its top surface is a mounting surface 22 with mounting holes 21.

[0023] The guardrail mounting bracket 3 includes an integrated upright connecting plate and a clamping pad; the upper surface of the upper pad 311 in the integrated upright connecting plate is vertically provided with an interface plate 32, and the interface plate 32 is provided with an interface plate through hole 321; a limiting pin 3112 is fixed on the lower surface of the upper pad 311; the upper pad 311 is provided with an upper pad through hole 3111 at the end away from the interface plate 32; the clamping pad is a lower pad 312 with a pad stud 3122, the lower pad 312 is placed on the back of the mounting surface 22, and the pad stud 3122 passes upward through the mounting hole 21 and the upper pad through hole 3111 in sequence, and is then locked with bolts.

[0024] The guardrail post 4 includes a connector 42 that mates with the interface plate 32 of the guardrail mounting bracket 3 and a pole body 41. The connector 42 is provided with a connector stud 422 that mates with the through hole 321 of the interface plate. The connector 42 is provided with the connector stud 422 in a direction perpendicular to the pole body 41.

[0025] The interface board 32 is provided with at least two interface board through holes 321; the number of connector studs 42 on the connector 42 is the same as the number of interface board through holes 321.

[0026] The guardrail mounting bracket 3 is made of high-strength Q235 steel, reinforced with ultra-thick walls and subjected to salt spray test-level anti-corrosion treatment. The guardrail post 4 is made of high-strength galvanized steel pipe or aluminum alloy.

[0027] When using the above technical solution, the following steps are included: S1. The lower pad 312 is placed in the mounting cavity 23 of the protruding base 2 of the fixed cargo securing equipment; S2. Place the upper pad 311 in the integrated pole connecting plate on the mounting surface 22, and insert the limit pin 3112 into the mounting hole 21. S3, the pad stud 3122 passes upward through the mounting hole 21 and the upper pad through hole 3111, and is then locked by the nut; the integrated upright connecting plate is installed onto the protruding base 2 of the fixed cargo securing equipment; S4. Align the connector 42 of the guardrail post 4 with and pass through the interface plate through hole 321 of the integrated post connecting plate, and then tighten it with a nut; install the guardrail post 4 onto the guardrail mounting bracket 3; S5. Install guardrail crossbars 5 between adjacent guardrail posts 4.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0029] Figures 1 to 5 A protective railing device for a container ship hatch cover 1 is shown, including the hatch cover 1, a protruding base for a fixed cargo securing device 2, a protective railing mounting bracket 3, a protective railing post 4, and a protective railing crossbar 5.

[0030] Cargo securing equipment is a device used to fix and support cargo units. Its core function is to prevent cargo from shifting or being damaged during transportation due to bumps or harsh environments. The base of fixed cargo securing equipment is directly welded to the hatch bottom, deck, pillars, and hatch covers, with the spacing between them designed according to the dimensions of the corner fitting holes of the container. This includes projecting bases: mainly used on hatch covers, pillars, and decks, with its main body protruding from the surface of the aforementioned structures to house and secure twist locks. There are three types: single projecting base 201, transverse double projecting base 202, and longitudinal double projecting base 203. Figure 2 As shown.

[0031] This utility model utilizes the protruding base in the fixed cargo securing equipment as a pre-embedded part, and uses the guardrail mounting bracket 3 as the base of the guardrail post 4 to realize the installation of the guardrail post 4, and further installs the guardrail crossbar 5.

[0032] A protective railing device for a container ship hatch cover includes a hatch cover 1, a fixed cargo securing equipment protruding base 2 welded to the hatch cover 1, a protective railing mounting bracket 3, a protective railing post 4 connected to the protective railing mounting bracket 3, a fixed cargo securing equipment protruding base 2 mounted on the protective railing post 4, and a protective railing crossbar 5.

[0033] Guardrail mounting brackets, such as Figure 3 As shown, the guardrail mounting bracket 3 includes an integrated upright connecting plate and a clamping pad; an interface plate 32 is vertically arranged on the upper surface of the upper pad 311 in the integrated upright connecting plate, and an interface plate through hole 321 is provided on the interface plate 32; a limiting pin 3112 is fixed on the lower surface of the upper pad 311; an upper pad through hole 3111 is provided at the end of the upper pad 311 away from the interface plate 32; the clamping pad adopts a lower pad 312 with a pad stud 3122, the lower pad 312 is placed on the back of the mounting surface 22, and the pad stud 3122 passes upward through the mounting hole 21 and the upper pad through hole 3111 in sequence, and is then locked with bolts.

[0034] The upper pad 311 has an upper pad through hole 3111, and the lower pad 312 has a pad stud 3122. During installation, the lower pad 312 is placed into the fixed cargo securing device protruding base 2 through the mounting hole 21, with the pad stud 3122 facing upwards and passing through the mounting hole 21 of the fixed cargo securing device protruding base 2. The upper pad 311 is then placed on the mounting surface 22 of the fixed cargo securing device protruding base 2, so that the pad stud 3122 passes through the upper pad through hole 3111 of the upper pad 311. If necessary, a limit pin 3112 can be used to easily locate the installation position and align the pad stud 3122.

[0035] The interface plate 32 of the upper pad 311 is disposed above the upper pad 311, such as Figure 4 As shown, the connector 42 is provided with a post stud 422 in a direction perpendicular to the rod 41. Figure 5 As shown. During installation, the column stud 422 is passed through the interface plate 32 and secured with washers and nuts. The advantage of this design is that it provides a large operating space and makes it easy to observe whether the nuts are loose.

[0036] The guardrail post 4 includes a connector 42 that mates with the interface 32 of the guardrail mounting bracket 3 and a rod body 41. The connector 42 is provided with a connector stud 422 that mates with the through hole 321 of the interface plate.

[0037] The interface plate 32 of the upper pad 311 can be a multi-directional expansion interface, which, together with other connectors and components, can be used to further fix the diagonal bar and the toe plate.

[0038] The method for installing edge protection railings using the protective railing device for container ship hatch covers includes the following steps: S1. Place the lower pad 312 into the protruding base 2 of the fixed cargo securing device through the mounting hole 21. The pad stud 3122 on the lower pad 312 faces upward and passes through the mounting hole 21 of the protruding base 2 of the fixed cargo securing device. Place the upper pad 311 on the mounting surface 22 of the protruding base 2 of the fixed cargo securing device. The upper pad through hole 3111 of the upper pad 311 is fitted onto the pad stud 3122. Use washers and nuts to fix it, and fix the clamping mechanism 31 to the protruding base 2 of the fixed cargo securing device.

[0039] The advantage of this structural design is that the pad stud 3122 faces upward, allowing operation to be performed above and outside the protruding base 2 of the fixed cargo securing equipment. This avoids fixing the nut in the confined space inside the protruding base 2 of the fixed cargo securing equipment or in areas where the view below is obstructed, making construction convenient. Furthermore, it is easy to observe whether the nut has become loose during use, resulting in higher safety.

[0040] S2. Connect the joint 42 of the guardrail post 4 to the interface plate 32 of the guardrail mounting bracket 3: Pass the post stud 422 at the joint 42 of the guardrail post 4 through the interface plate 32 and connect it with a washer and nut.

[0041] S3. Erect horizontal bars 5. The guardrail should consist of two horizontal bars 5. The upper bar should be 1.2m above the ground, and the lower bar should be installed between the upper bar and the toe board. Connect and fix the guardrail using fasteners, shaped sleeves, or other methods. The guardrail posts should be made of high-strength galvanized steel pipe or aluminum alloy.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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 protective railing device for container ship hatch covers, characterized in that: The device includes a hatch cover (1) and a fixed cargo securing equipment protruding base (2) welded to the hatch cover (1), a guardrail mounting bracket (3) on the fixed cargo securing equipment protruding base (2), a guardrail connecting guardrail posts (4), and a guardrail crossbar (5) mounted on the guardrail posts (4). The protruding base (2) of the fixed cargo securing equipment adopts a hollow shell with an internal mounting cavity (23) and a mounting surface (22) on the top surface. Mounting holes (21) are provided on the mounting surface (22). The guardrail mounting bracket (3) includes an integrated upright connecting plate and a clamping pad; an interface plate (32) is vertically installed on the upper surface of the upper pad (311) in the integrated upright connecting plate, and an interface plate through hole (321) is provided on the interface plate (32); a limit pin (3112) is fixedly installed on the lower surface of the upper pad (311); an upper pad through hole (3111) is provided at the end of the upper pad (311) away from the interface plate (32); the clamping pad adopts a lower pad (312) with a pad stud (3122), the lower pad (312) is placed on the back of the mounting surface (22), and the pad stud (3122) passes through the mounting hole (21) and the upper pad through hole (3111) in sequence, and then the integrated upright connecting plate and the clamping pad are locked with a nut; The guardrail post (4) includes a connector (42) that mates with the interface plate (32) of the guardrail mounting bracket (3) and a rod body (41). The connector (42) is provided with a connector stud (422) that mates with the through hole (321) of the interface plate.

2. The protective railing device for container ship hatch covers according to claim 1, characterized in that: The connector (42) has a connector stud (422) in a direction perpendicular to the rod (41).

3. The protective railing device for container ship hatch covers according to claim 2, characterized in that: At least two interface plate through holes (321) are provided on the interface plate (32); the number of connector studs (422) on the connector (42) is the same as the number of interface plate through holes (321).

4. The protective railing device for container ship hatch covers according to claim 3, characterized in that: The guardrail posts (4) are made of high-strength galvanized steel pipe or aluminum alloy.

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