A new type of marine chain lock structure

By designing a new type of marine chain lock structure, and utilizing the combination of an arc-shaped inner cover stud seat and T-bolts, the problems of unstable connection and complex assembly of traditional chain lock structures are solved, thus achieving efficient, safe and convenient ship construction requirements.

CN224466087UActive Publication Date: 2026-07-07TIANJIN JIUWEI IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN JIUWEI IND
Filing Date
2025-05-23
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Traditional marine chain lock structures are not reliable and stable enough during the connection process, are complex to assemble, resulting in low safety and efficiency, high cost, and inconvenient handling.

Method used

A novel marine chain lock structure was designed, which achieves stable connection between components through the combination of arc-shaped inner cover stud seat, T-bolt and hexagonal flange thick nut, and simplifies the assembly process, reducing weight and cost.

Benefits of technology

It improves the reliability and safety of the chainlock structure, simplifies the assembly process, reduces labor costs, increases construction efficiency, and facilitates movement and expansion, thereby enhancing the stability and safety of the scaffolding.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224466087U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel marine chain lock structure relates to the technical field of ship scaffold, including the hull, the one side fixed mounting of hull has a plurality of connecting top eye plate, the inboard fixed connection of connecting top eye plate has two ring chain, the outside installation of ring chain has arc inner cover stud seat, the inboard installation of arc inner cover stud seat has the steel pipe, the inside of arc inner cover stud seat one side is provided with rivet hole no.
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Description

Technical Field

[0001] This utility model relates to the field of ship scaffolding technology, specifically a novel marine chain lock structure. Background Technology

[0002] Currently, with the increasing size of ship types and the development of larger ship construction sections, there has been an increase in high-altitude operations during the construction process, resulting in the need to erect scaffolding platforms at many construction sites.

[0003] Currently, traditional ship chain lock structures are bulky and heavy in the overall structure of shipbuilding protective suspension platforms. The assembly process for connecting rods, iron ring chains, and scaffold boards is complex and inefficient. Moreover, the connection methods of some chain lock structures are not reliable and stable enough, and they are prone to loosening during long-term use, affecting the safety of the scaffolding. In addition, some existing chain lock structures are expensive and inconvenient to transport, increasing the cost and difficulty of ship operations. Therefore, we propose a new type of ship chain lock structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel marine chain lock structure that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel marine chain lock structure includes a hull. Several connecting top eye plates are fixedly installed on one side of the hull. Two ring chains are fixedly connected to the inner side of the connecting top eye plates. An arc-shaped inner cap stud seat is installed on the outer side of the ring chains. A steel pipe is installed on the inner side of the arc-shaped inner cap stud seat. A second rivet hole is opened inside one side of the arc-shaped inner cap stud seat, and a rivet is fixedly installed inside the second rivet hole. An arc-shaped fastener cover is rotatably installed on the outer side of the rivet. The arc-shaped fastener cover cooperates with the steel pipe. A T-bolt is provided on one side of the arc-shaped inner cap stud seat, and a straight stud is provided on the other side. The T-bolt cooperates with the arc-shaped fastener cover. The ring chains cooperate with the straight studs. A chain lock cover is sleeved on the outer side of the straight studs. The chain lock cover cooperates with the ring chains. Hexagonal flange thick nuts are threaded onto the outer sides of both the T-bolt and the straight studs.

[0006] Preferably, a support assembly is fixedly installed on the outer side of the steel pipe, and a plurality of tensioning assemblies are fixedly installed in the middle of each of the support assemblies.

[0007] Preferably, the outer cover of the arc-shaped fastener has a rivet hole inside, which is engaged with a rivet. The top of the outer cover of the arc-shaped fastener has a notch, which is engaged with a T-bolt. A circular slot is provided on one side of the outer cover of the arc-shaped fastener, which is engaged with a hexagonal flange nut. An arc-shaped structure is provided on one side of the outer cover of the arc-shaped fastener.

[0008] Preferably, a C-shaped arc structure is provided on one side of the arc-shaped inner cover stud seat. The C-shaped arc structure cooperates with the arc structure. The C-shaped arc structure and the arc structure cooperate with the steel pipe. A cylindrical slot is provided inside the top of the arc-shaped inner cover stud seat. A cylinder is fixedly installed at one end of the T-bolt. The cylinder is rotatably connected to the cylindrical slot. Two semi-circular slots are provided on one side of the arc-shaped inner cover stud seat.

[0009] Preferably, two semi-circular slots are formed inside one side of the chain cover. The two semi-circular slots cooperate with the first semi-circular slot, and the two semi-circular slots cooperate with the chain.

[0010] Preferably, a reserved slot is provided inside the other side of the chain cover, and another hexagonal flange thick nut is fitted into the reserved slot.

[0011] This utility model provides a novel marine chain lock structure, which has the following beneficial effects:

[0012] 1. This new type of marine chain lock structure has a stable connection between its components, which can ensure the reliability of the chain lock structure during use, reduce safety hazards caused by weak connections, and can quickly form a whole by connecting several rods, iron ring chains, and scaffold boards through the chain lock structure components. Compared with the traditional chain lock structure, its assembly process is simpler, which greatly improves construction efficiency and saves time and labor costs.

[0013] 2. This new type of marine chain lock structure is simple in structure, relatively lightweight, and easier to handle. It is convenient to move and arrange on the ship's work site, improving work flexibility. The overall component design and manufacturing process is relatively simple, and the required raw material and manufacturing costs are low.

[0014] 3. This new type of marine chain lock structure, through T-bolt locking and hexagonal flange face thick nut locking, can ensure a firm connection between the chain lock and steel pipes, ring chains and other components. It is an effective replacement for the bulky overall structure and heavy self-weight of marine suspended scaffolding, improves the overall stability and safety of scaffolding, and can be quickly expanded when multi-level hoisting is required, with high expansion efficiency and more convenient use. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is a side view of the present invention;

[0018] Figure 4 This is a side view of the arc-shaped inner cover stud seat of this utility model;

[0019] Figure 5 This is a top view of the arc-shaped inner cover stud seat of this utility model;

[0020] Figure 6 This is a side view of the outer cover of the arc-shaped fastener of this utility model;

[0021] Figure 7 This utility model Figure 3 Enlarged view of point A in the image;

[0022] Figure 8 This utility model Figure 2 Enlarged view of point B in the image;

[0023] Figure 9 Schematic diagrams of the arc-shaped fastener outer cover of this utility model from different perspectives;

[0024] Figure 10 This is a partial structural schematic diagram of the present invention;

[0025] Figure 11 These are schematic diagrams of the arc-shaped inner cover stud seat of this utility model from different perspectives;

[0026] Figure 12 These are schematic diagrams of the chain cover structure from different perspectives of this utility model;

[0027] Figure 13 This is a schematic diagram of the multi-layer lifting platform structure of this utility model.

[0028] In the diagram: 1. Rivet; 2. Arc-shaped fastener cover; 3. T-bolt; 4. Hexagonal flange face thick nut; 5. Arc-shaped inner cover stud seat; 6. Chain cover; 7. Connecting top eye plate; 8. Ring chain; 9. Steel pipe; 10. Tensioning assembly; 11. Support assembly; 12. Scaffold board; 13. Hull; 21. Rivet hole one; 22. Notch; 23. Circular slot; 24. Arc structure; 51. C-shaped arc structure; 52. Rivet hole two; 53. Cylindrical slot; 54. Straight stud; 55. Semi-circular slot one; 61. Semi-circular slot two; 62. Reserved slot. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Please see Figures 1 to 13 This utility model provides a technical solution: a novel marine chain lock structure, including a hull 13, with several connecting top eye plates 7 fixedly installed on one side of the hull 13. Two ring chains 8 are fixedly connected to the inner side of the connecting top eye plates 7, and an arc-shaped inner cover stud seat 5 is installed on the outer side of the ring chains 8. A C-shaped arc structure 51 is provided on one side of the arc-shaped inner cover stud seat 5. The C-shaped arc structure 51 cooperates with the arc structure 24. The C-shaped arc structure 51 and the arc structure 24 cooperate with the steel pipe 9. The top of the arc-shaped inner cover stud seat 5 has an internal opening. A cylindrical slot 53 is provided, and a cylinder is fixedly installed at one end of a T-bolt 3. The cylinder is rotatably connected to the cylindrical slot 53. Two semi-circular slots 55 are provided on one side of the arc-shaped inner cover stud seat 5. A steel pipe 9 is installed on the inner side of the arc-shaped inner cover stud seat 5. A rivet hole 52 is provided inside one side of the arc-shaped inner cover stud seat 5. A rivet 1 is fixedly installed inside the rivet hole 52. An arc-shaped fastener cover 2 is rotatably installed on the outer side of the rivet 1. A rivet hole 21 is provided inside the arc-shaped fastener cover 2. The rivet hole 21 is connected to the rivet 1. The outer cover 2 of the arc-shaped fastener has a notch 22 at the top, and the T-bolt 3 mates with the notch 22. A circular slot 23 is provided on one side of the outer cover 2 of the arc-shaped fastener, and the hexagonal flange face nut 4 mates with the circular slot 23. An arc-shaped structure 24 is provided on one side of the outer cover 2 of the arc-shaped fastener, and the outer cover 2 of the arc-shaped fastener mates with the steel pipe 9. A T-bolt 3 is provided on one side of the arc-shaped inner cover stud seat 5, and a straight stud 54 is provided on the other side of the arc-shaped inner cover stud seat 5. The T-bolt 3 mates with the outer cover 2 of the arc-shaped fastener, and the chain 8 mates with the straight stud 54. The outer side of the straight stud 54 is fitted with a chain cover 6. Two semi-circular slots 61 are opened inside one side of the chain cover 6. The semi-circular slots 61 and 61 mate with the semi-circular slots 55. The semi-circular slots 61 and 55 mate with the chain 8. The other side of the chain cover 6 has a reserved slot 62. Another hexagonal flange nut 4 mates with the reserved slot 62. The chain cover 6 mates with the chain 8. The T-bolt 3 and the outer side of the straight stud 54 are both threaded with hexagonal flange nuts 4.

[0031] The straight stud 54 and the arc-shaped inner cover stud seat 5 are formed as a whole by welding or casting. Two semi-circular slots 55 are reserved in the arc-shaped inner cover stud seat 5 to facilitate the engagement with the ring chain 8 and fix it. The surface of the straight stud 54 is provided with threads to facilitate the connection with the hexagonal flange face thick nut 4 for fastening the ring chain 8. The two ends of the ring chain 8 are respectively fixedly connected to the outer sides of the two ends of the steel pipe 9 through the arc-shaped inner cover stud seat 5 and the arc-shaped fastener outer cover 2.

[0032] A support assembly 11 is fixedly installed on the outside of the steel pipe 9, and a number of tensioning assemblies 10 are fixedly installed in the middle of each of the support assemblies 11.

[0033] In summary, the new marine chain lock structure is used by first installing two arc-shaped inner cap stud seats 5 on the outside of the steel pipe 9. During installation, first unscrew the hexagonal flange thick nut 4 on the outside of the T-bolt 3, then rotate the T-bolt 3 so that it rotates through the cylindrical slot 53, allowing the T-bolt 3 to rotate out from the inside of the notch 22. Next, rotate the arc-shaped fastener outer cover 2 so that it rotates around the rivet hole 1 21 and rivet hole 2 52. Then, place the steel pipe 9 into the C-shaped arc structure 51. Next, rotate the arc-shaped fastener outer cover 2 so that it rotates around the rivet 1 and engages with the steel pipe 9 through the arc structure 24. Finally, rotate the T-bolt 3 so that it rotates into the inside of the notch 22, then screw the hexagonal flange thick nut 4 onto the outside of the T-bolt 3, and sink one end of the T-bolt 3 into the circular slot 23 to fix the arc-shaped fastener outer cover 2 and the arc-shaped inner cap stud seat 5. After the steel pipe 9 is fixed, the two ends of the chain 8 connecting the outer side of the top eye plate 7 are connected to the two arc-shaped inner cover stud seats 5 on the outer side of the steel pipe 9. When connecting, the straight stud 54 on one side of the arc-shaped inner cover stud seat 5 is passed through the hole of the chain 8, and the chain outer cover 6 is fitted on the outside of the straight stud 54. The chain 8 is positioned with the semi-circular slot 1 55 and the semi-circular slot 2 61 respectively. Finally, the hexagonal flange thick nut 4 is screwed on the outside of the straight stud 54 so that one end sinks into the reserved slot 62 to complete the connection between the chain 8 and the arc-shaped inner cover stud seat 5. Then, one end of the gravity steel pipe 9 contacts the outside of the hull 13. Finally, the scaffold board 12 is laid on the outside of the steel pipe 9, and the support component 11 is installed on the outside of the steel pipe 9. The tensioning component 10 is installed on the outside of the support component 11 to complete the laying.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel marine chainlock structure, comprising a hull (13), characterized in that: Several connecting top eye plates (7) are fixedly installed on one side of the hull (13). Two ring chains (8) are fixedly connected to the inner side of the connecting top eye plates (7). An arc-shaped inner cover stud seat (5) is installed on the outer side of the ring chains (8). A steel pipe (9) is installed on the inner side of the arc-shaped inner cover stud seat (5). A rivet hole two (52) is opened inside one side of the arc-shaped inner cover stud seat (5). A rivet (1) is fixedly installed inside the rivet hole two (52). An arc-shaped fastener outer cover (2) is rotatably installed on the outer side of the rivet (1). The outer cover (2) is fitted with the steel pipe (9). A T-bolt (3) is provided on one side of the arc-shaped inner cover stud seat (5), and a straight stud (54) is provided on the other side of the arc-shaped inner cover stud seat (5). The T-bolt (3) is fitted with the arc-shaped fastener outer cover (2). The ring chain (8) is fitted with the straight stud (54). A lock chain outer cover (6) is sleeved on the outside of the straight stud (54). The lock chain outer cover (6) is fitted with the ring chain (8). A hexagonal flange face thick nut (4) is threaded on the outside of both the T-bolt (3) and the straight stud (54).

2. The novel marine chain lock structure according to claim 1, characterized in that: A support assembly (11) is fixedly installed on the outside of the steel pipe (9), and a number of tensioning assemblies (10) are fixedly installed in the middle of each of the support assemblies (11).

3. The novel marine chain lock structure according to claim 1, characterized in that: The inner part of the arc-shaped fastener cover (2) is provided with a rivet hole (21), which is engaged with the rivet (1). The top of the arc-shaped fastener cover (2) is provided with a notch (22), which is engaged with the T-bolt (3). A circular slot (23) is provided on one side of the arc-shaped fastener cover (2), which is engaged with the hexagonal flange face nut (4). An arc-shaped structure (24) is provided on one side of the arc-shaped fastener cover (2).

4. A novel marine chain lock structure according to claim 1, characterized in that: A C-shaped arc structure (51) is provided on one side of the arc-shaped inner cover stud seat (5). The C-shaped arc structure (51) cooperates with the arc structure (24). The C-shaped arc structure (51) and the arc structure (24) cooperate with the steel pipe (9). A cylindrical slot (53) is provided inside the top of the arc-shaped inner cover stud seat (5). A cylinder is fixedly installed at one end of the T-bolt (3). The cylinder is rotatably connected to the cylindrical slot (53). Two semi-circular slots (55) are provided on one side of the arc-shaped inner cover stud seat (5).

5. A novel marine chain lock structure according to claim 1, characterized in that: The inner side of the chain cover (6) has two semi-circular slots (61), which are engaged with semi-circular slots (55). The semi-circular slots (61) and semi-circular slots (55) are engaged with the chain (8).

6. A novel marine chain lock structure according to claim 1, characterized in that: The outer cover of the chain (6) has a reserved slot (62) on the other side, and another hexagonal flange thick nut (4) is fitted with the reserved slot (62).