A safety protection device
By designing auxiliary tooling and safety nets for cargo hold platforms, the problem of lack of guardrails on container ship cargo hold platforms was solved, which improved construction safety and efficiency and reduced costs and the risk of paint damage.
Patent Information
- Application Number
- CN202510208715.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2045-02-25
AI Technical Summary
During the construction of container ship cargo hold platforms, the lack of guardrails leads to frequent falls from heights. After the railings are removed, safety belts cannot be installed, which increases labor and time costs and may damage the paint.
An auxiliary tooling for a cargo hold platform is designed, comprising a rod body, a plug-in portion, a hook assembly and a locking assembly. It is fixed by plugging into a railing socket and combined with a safety belt or rope to provide a temporary guardrail function. It is also equipped with upper and lower safety nets to enhance safety.
It improves the safety of high-altitude operations, shortens the construction period, saves labor costs, avoids paint damage, and ensures construction quality.
Smart Images

Figure CN119821629B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of shipbuilding, and in particular to an auxiliary tooling and a safety protection device for a cargo hold platform. Background Art
[0002] Container ships are a vital form of modern maritime transport. With the continuous development of global trade, container ships, as one of the primary means of maritime transportation, carry a vast amount of cargo. Construction on container ship cargo platforms, due to their structural characteristics, lies between the hatch coaming and the cargo hold floor, above the hold floor. Without guardrails and inherent safety features, falls from height are highly likely to occur. Therefore, construction workers must wear and properly wear safety harnesses.
[0003] As container ship production progresses, the subsequent trial phase of container ship construction requires the removal of all railings on the cargo platform, making it impossible for on-site construction workers to attach safety harnesses. Since the trial phase is close to ship delivery, shipowners often request that the cargo platform be cleaned and repaired. However, without any protective measures in place, work on the platform is prohibited. Qualified personnel must be contacted to install wire ropes, a labor-intensive and time-consuming process that may also damage the paint.
[0004] Therefore, there is an urgent need to provide an auxiliary tooling and safety protection device for a cargo hold platform to solve the above problems. Summary of the Invention
[0005] One purpose of the present invention is to provide an auxiliary tooling for a cargo hold platform, which has low manufacturing cost, is easy and quick to use, can improve the safety of high-altitude operations, greatly shorten the construction period, save labor costs, and can effectively ensure construction quality and avoid waste caused by repairing damaged paint.
[0006] Another object of the present invention is to provide a safety protection device. By adopting the above-mentioned auxiliary tooling for the cargo hold platform, the safety of high-altitude operations can be improved, the construction period can be greatly shortened, labor costs can be saved, and the construction quality can be effectively guaranteed, avoiding the waste caused by repairing damaged paint.
[0007] To achieve this object, the present invention adopts the following technical solutions:
[0008] An auxiliary tooling for a cargo hold platform, wherein a railing socket is provided on the side wall of the cargo hold platform, and the auxiliary tooling for the cargo hold platform comprises:
[0009] Rod body;
[0010] a plug-in portion connected to one end of the rod body, the plug-in portion being parallel to and spaced apart from the rod body, and being configured to be inserted into the railing socket;
[0011] A hook assembly is provided on the rod body, and both ends of a safety belt or a safety rope can be hung on the hook assembly;
[0012] A locking assembly is used to detachably fix the plug-in portion in the railing socket.
[0013] As an optional solution, it includes a lock and a speed differential. The rod body is provided with two connecting holes spaced apart along its length direction. The lock is hung in one of the connecting holes, and the speed differential is hung in the other connecting hole. One end of the safety belt or the safety rope can be hung on the speed differential, and the other end of the safety belt or the safety rope can be hung on the lock.
[0014] As an optional solution, the lock and the speed differential are oriented in opposite directions.
[0015] As an optional solution, the locking assembly includes a fastener, a threaded hole is provided at a position near the free end of the plug-in portion, a through hole is provided at a position corresponding to the threaded hole on the rod body, and the fastener is passed through the through hole and threadedly connected to the threaded hole.
[0016] As an optional solution, the locking assembly further includes a stopper, which is located in the gap between the plug-in portion and the rod body, and is provided with a through hole for the fastener to pass through.
[0017] As an optional solution, a reinforcing rib is provided inside the position where the plug-in portion is connected to the rod body.
[0018] As an optional solution, the plug-in portion and the rod body are an integrally formed structure.
[0019] A safety protection device comprises an upper safety net and the above-mentioned auxiliary tooling for the cargo hold platform, wherein the auxiliary tooling for the cargo hold platform is arranged in two rows, namely a first row and a second row, wherein the first row and the second row are respectively located on opposite sides of the cargo hold platform, and the first row is higher than the second row, and one side of the upper safety net is connected to the top of the first row, and the other side is connected to the top of the second row.
[0020] As an optional solution, a lower safety net is further included, one side of the lower safety net is connected to the top end of the second row, and the other side is connected to the bottom end of the second row.
[0021] As an optional solution, the first row includes at least two auxiliary toolings for the cargo hold platform, and both ends of the safety belt or safety rope can be hung on the same auxiliary tooling for the cargo hold platform in the first row;
[0022] Alternatively, both ends of the safety belt or safety rope can be hung on auxiliary tooling for two adjacent cargo hold platforms in the first row, respectively.
[0023] Beneficial effects of the present invention:
[0024] The present invention provides an auxiliary tool for a cargo hold platform. When in use, the operator wears a safety belt and carries the auxiliary tool with him. The operator goes up to the cargo hold platform through the middle compartment. First, the operator hangs a hook at one end of the safety belt on the middle compartment railing corresponding to the cargo hold platform to be constructed before walking to the cargo hold platform. Then, the operator holds the rod body and inserts the plug-in part into the railing socket so that the connection position between the plug-in part and the rod body abuts against the end face of the railing socket to prevent it from shaking left and right. Then, the plug-in part is fixed in the railing socket by a locking assembly to prevent the auxiliary tool from falling off. Subsequently, the hook assembly is installed on the rod body 1 to hook the hook at the other end of the safety belt, and then the hook of the safety belt on the middle compartment railing is removed and hung on the hook assembly. Thereafter, each auxiliary tool is installed in the railing socket on the adjacent side in turn as the railing on the cargo hold platform, and then the operation of cleaning and repairing the cargo hold platform can be carried out. It can be seen that the auxiliary tooling used for the cargo hold platform has a low manufacturing cost, can be carried by one person, is easy and quick to use, can improve the safety of high-altitude operations, greatly shortens the construction period, saves labor costs, and can effectively ensure construction quality, avoiding waste caused by repairing damaged paint.
[0025] The present invention also provides a safety protection device. By adopting the above-mentioned auxiliary tooling for the cargo hold platform, the safety of high-altitude operations can be improved, the construction period can be greatly shortened, labor costs can be saved, and the construction quality can be effectively guaranteed, avoiding the waste caused by repairing damaged paint. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic structural diagram of a safety protection device on a cargo hold platform provided by an embodiment of the present invention;
[0027] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;
[0028] Figure 3 It is a structural diagram of the auxiliary work provided by an embodiment of the present invention;
[0029] Figure 4 It is a structural schematic diagram of the rod body and the plug-in portion provided by an embodiment of the present invention;
[0030] Figure 5 It is a side view of the rod body and the plug-in portion provided by an embodiment of the present invention.
[0031] In the picture:
[0032] 10. Auxiliary tooling; 101. First row; 102. Second row; 20. Cargo hold platform; 30. Railing socket; 40. Upper safety net; 50. Lower safety net;
[0033] 1. Rod body; 11. Connecting hole; 12. Through hole; 2. Connecting part; 21. Threaded hole; 3. Hook assembly; 31. Lock; 32. Speed differential; 4. Locking assembly; 41. Fastener; 42. Stop block; 5. Reinforcement rib. DETAILED DESCRIPTION
[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.
[0035] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.
[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0037] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.
[0038] Container ships are a vital form of modern maritime transport. With the continuous development of global trade, container ships, as one of the primary means of maritime transportation, carry a vast amount of cargo. During the construction of the container ship's cargo hold platform 20, due to its structural characteristics, it is located between the hatch coaming and the cargo hold floor, above the cargo hold floor. Without guardrails and inherent safety features, falls from height are highly likely to occur. Therefore, construction workers must wear and properly fasten safety harnesses.
[0039] As container ship production progresses, all railings on the cargo platform 20 must be removed during the subsequent container testing phase, making it impossible for on-site construction workers to attach safety harnesses. Since the testing phase is close to ship delivery, shipowners often request that the cargo platform 20 be cleaned and repaired. However, without any protective measures in place, work on the cargo platform 20 is prohibited. Qualified personnel must be contacted to install wire ropes, a labor-intensive and time-consuming process that may also damage the paint.
[0040] For this reason, Figures 1 to 3 As shown, this embodiment provides an auxiliary tooling 10 for a cargo hold platform, which is applied to the cargo hold platform 20 area of a container ship. A railing socket 30 is provided on the side wall of the cargo hold platform 20. Specifically, the auxiliary tooling 10 for the cargo hold platform includes a rod body 1, a plug-in portion 2, a hook assembly 3, and a locking assembly 4. The plug-in portion 2 is connected to one end of the rod body 1, and the plug-in portion 2 is parallel to the rod body 1 and spaced apart. The plug-in portion 2 is configured to be inserted into the railing socket 30. The hook assembly 3 is provided on the rod body 1, and both ends of a safety belt or safety rope can be hung on the hook assembly 3. The locking assembly 4 is used to detachably fix the plug-in portion 2 in the railing socket 30.
[0041] After the auxiliary tool 10 is in use, the operator wears a safety belt and carries the auxiliary tool 10 with him. The operator goes up to the cargo hold platform 20 through the middle compartment. First, the operator hangs the hook at one end of the safety belt on the middle compartment railing corresponding to the cargo hold platform 20 to be constructed before walking onto the cargo hold platform 20. Then, the operator holds the rod body 1 and inserts the plug-in part 2 into the railing socket 30 so that the connection position between the plug-in part 2 and the rod body 1 abuts against the end surface of the railing socket 30 to prevent it from shaking left and right. Then, the plug-in part 2 is fixed in the railing socket 30 by the locking component 4 to prevent the auxiliary tool 10 from falling off. Subsequently, the hook component 3 is installed on the rod body 1 to hook the hook at the other end of the safety belt. Then, the hook of the safety belt on the middle compartment railing is removed and hung on the hook component 3. After that, each auxiliary tool 10 is installed in the adjacent railing socket 30 in turn as a railing on the cargo hold platform 20. Only then can the operation of cleaning and repairing the cargo hold platform 20 be carried out.
[0042] It can be seen that the auxiliary tooling 10 for the cargo hold platform provided in this embodiment has a low manufacturing cost, can be carried by one person, is convenient and quick to use, can improve the safety of operations at heights, greatly shortens the construction period, saves labor costs, and can effectively ensure construction quality, avoiding waste caused by repairing damaged paint.
[0043] It should be noted that when the length of the safety belt is not enough, a safety rope can be connected to the hooks at both ends of the safety belt as an extension, and then the hooks at the ends of the safety rope can be hung on the hook assembly 3.
[0044] like Figure 3 As shown, the hook assembly 3 includes a lock 31 and a speed differential 32. The rod body 1 is provided with two connection holes 11 spaced apart along its length. The lock 31 is hung in one of the connection holes 11, and the speed differential 32 is hung in the other connection hole 11. One end of the safety belt or safety rope can be hung on the speed differential 32, and the other end of the safety belt or safety rope can be hung on the lock 31. By hanging the two ends of the safety belt or safety rope separately, balance can be maintained and the swing amplitude in the event of a fall from a height can be eliminated. By using the speed differential 32, the construction range can be guaranteed and effective protection can be provided against falls from a height.
[0045] Furthermore, the lock buckle 31 and the speed differential 32 are oriented in opposite directions. This arrangement can ensure the force balance of the rod body 1 and extend the service life of the tooling.
[0046] like Figure 3 and Figure 4 As shown, the locking assembly 4 includes a fastener 41. The plug-in portion 2 has a threaded hole 21 formed near its free end. The rod body 1 has a through-hole 12 formed at a position corresponding to the threaded hole 21. The fastener 41 is inserted through the through-hole 12 and threadedly connected to the threaded hole 21. This arrangement can stably insert the plug-in portion 2 into the railing socket 30, preventing the auxiliary tool 10 from falling off. The fastener 41 can be a bolt.
[0047] Furthermore, if Figure 3 As shown, the locking assembly 4 further includes a stopper 42, which is located in the gap between the plug-in portion 2 and the rod body 1. The stopper 42 is provided with a through hole for the fastener 41 to pass through. Since the rod body 1 is relatively thin, the stopper 42 is sandwiched between the plug-in portion 2 and the rod body 1 to prevent deformation of the rod body 1 when the fastener 41 is locked.
[0048] In this embodiment, the plug-in portion 2 and the rod body 1 are integrally formed. The integrally formed structure can enhance the strength of the overall structure, avoid assembly steps, and is easy to use.
[0049] like Figure 5As shown, a reinforcing rib 5 is provided inside the position where the plug-in portion 2 is connected to the rod body 1. By providing the reinforcing rib 5, the strength of the overall structure can be further improved and the service life of the tooling can be extended.
[0050] It should be noted that, since the construction area of the cargo hold platform 20 is located below the hatch coaming, when workers are working on the cargo hold platform 20, objects may fall from the edge of the hatch coaming and cause damage to the workers.
[0051] For this reason, Figure 1 and Figure 2 As shown, this embodiment also provides a safety protection device, including an upper safety net 40 and the above-mentioned auxiliary tooling 10 for the cargo hold platform. The auxiliary tooling 10 for the cargo hold platform is arranged in two rows, namely the first row 101 and the second row 102. The hanging directions of the auxiliary tooling 10 in the first row 101 and the second row 102 are opposite. The safety belt or safety rope of the operator is hung on the auxiliary tooling 10 in the first row 101. The first row 101 and the second row 102 are respectively located on opposite sides of the cargo hold platform 20, and the first row 101 is higher than the second row 102. One side of the upper safety net 40 is connected to the top of the first row 101, and the other side is connected to the top of the second row 102.
[0052] Before installing the first row 101 of auxiliary fixtures 10, workers first hang the upper safety net 40 over the rods 1 of the first row 101 of auxiliary fixtures 10. They then position the rods 1 of the first row 101 downward and hook the connector 2 into the railing socket 30. They then proceed to the edge of the cargo hold platform 20 and sequentially install the second row 102 of auxiliary fixtures 10. These are then hung with the rods 1 facing upward. Once installed, they can serve as railings for edge work. Finally, workers securely tie the upper safety net 40 to the rods 1 of the second row 102. This upper safety net 40 prevents objects from falling from above the work area and causing injury to construction workers.
[0053] It should be noted that Figure 1 As can be seen, the cargo platform 20 is stepped, with each level of the cargo platform 20 operating independently. The above operation process is based on one level, and the same process applies to each level. Taking one level of the cargo platform 20 as an example, the first row 101 is located on the inner side of the cargo platform 20 and is primarily used for attaching safety belts or safety ropes and connecting to the upper safety net 40. The second row 102 is located on the edge of the cargo platform 20 and is primarily used as a handrail and for attaching the upper safety net 40.
[0054] Furthermore, if Figure 2As shown, the safety protection device also includes a lower safety net 50. One side of the lower safety net 50 is tied and connected to the top of the second row 102, and the other side of the lower safety net 50 is tied and connected to the bottom of the second row 102. By connecting the lower safety net 50 to the auxiliary tooling 10 in the second row 102, it can also serve as a handrail when working near the edge, further improving safety.
[0055] In this embodiment, if Figure 2 As shown, three railing sockets 30 are provided on the upper and lower sides of each cargo hold platform 20. The first row 101 and the second row 102 each include two auxiliary fixtures 10, which are respectively installed in the railing sockets 30 on either side. In other embodiments, the first row 101 and the second row 102 may also include three auxiliary fixtures 10, which are respectively installed in three railing sockets 30. Of course, in other embodiments, the number of railing sockets 30 and auxiliary fixtures 10 can be increased, and this is not specifically limited here.
[0056] In an optional embodiment, when a worker is working near an auxiliary tooling 10, both ends of the safety belt or safety rope can be hung on the same auxiliary tooling 10 for cargo hold platforms in the first row 101. In another optional embodiment, when a worker is working between two auxiliary toolings 10, both ends of the safety belt or safety rope can be hung on two adjacent auxiliary toolings 10 for cargo hold platforms in the first row 101, respectively, which is more flexible to use.
[0057] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. A safety protection device, characterized in that: The invention comprises an upper safety net (40) and auxiliary tooling for a cargo hold platform, wherein the auxiliary tooling for the cargo hold platform is arranged in two rows, namely a first row (101) and a second row (102), wherein the first row (101) and the second row (102) are respectively located on opposite sides of a cargo hold platform (20), and the first row (101) is higher than the second row (102), one side of the upper safety net (40) is connected to the top of the first row (101), and the other side of the upper safety net (40) is connected to the top of the second row (102); It also includes a lower safety net (50), one side of the lower safety net (50) is connected to the top end of the second row (102), and the other side of the lower safety net (50) is connected to the bottom end of the second row (102); A railing socket (30) is provided on the side wall of the cargo hold platform (20), and the auxiliary tooling for the cargo hold platform includes: Rod body (1); A plug-in portion (2) is connected to one end of the rod body (1), the plug-in portion (2) is parallel to the rod body (1) and spaced apart, and the plug-in portion (2) is configured to be inserted into the railing socket (30); A hook assembly (3) is arranged on the rod body (1), and both ends of a safety belt or a safety rope can be hung on the hook assembly (3); A locking assembly (4) for detachably fixing the plug-in portion (2) in the railing socket (30); The hook assembly (3) includes a lock buckle (31) and a speed differential (32); the rod body (1) is provided with two connection holes (11) spaced apart along its length direction; the lock buckle (31) is hung in one of the connection holes (11); the speed differential (32) is hung in the other connection hole (11); one end of the safety belt or the safety rope can be hung on the speed differential (32); the other end of the safety belt or the safety rope can be hung on the lock buckle (31); The lock buckle (31) and the speed differential (32) are oriented in opposite directions.
2. The safety protection device according to claim 1, characterized in that: The locking assembly (4) includes a fastener (41), a threaded hole (21) is provided at a position of the plug-in portion (2) near its free end, a through hole (12) is provided on the rod body (1) at a position corresponding to the threaded hole (21), and the fastener (41) is passed through the through hole (12) and is threadedly connected to the threaded hole (21).
3. The safety protection device according to claim 2, characterized in that: The locking assembly (4) further comprises a stopper (42), the stopper (42) being located in the gap between the plug-in portion (2) and the rod body (1), and a through hole for the fastener (41) to pass through being formed on the stopper (42).
4. The safety protection device according to claim 1, characterized in that: A reinforcing rib (5) is provided inside the position where the plug-in portion (2) is connected to the rod body (1).
5. The safety protection device according to claim 1, characterized in that: The plug-in portion (2) and the rod body (1) are an integrally formed structure.
6. The safety protection device according to claim 1, characterized in that: The first row (101) includes at least two auxiliary toolings for the cargo hold platform, and both ends of a safety belt or a safety rope can be hung on the same auxiliary tooling for the cargo hold platform in the first row (101); Alternatively, both ends of the safety belt or safety rope can be hung on auxiliary tooling for two adjacent cargo hold platforms in the first row (101), respectively.
Citation Information
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