Connecting ring for offshore construction of mooring anchor chain

Abstract

The connecting ring is composed of a connecting ring body and clamping petals, T-shaped buckle structures are machined at the two ends of an opening of the C-shaped ring body, and the T-shaped buckle structures and two-petal clamping petal connecting pieces are in groove and boss butt joint, so that a complete chain ring structure is formed; the two clamping petals are connected through the countersunk bolt to form an embedded cylinder, the T-shaped structure of the chain ring is just clamped by the groove in the end of the embedded cylinder, and stable connection without movement is formed. By means of the buckles arranged in the cross mode, the middle connecting piece can be rapidly installed and disassembled, and efficiency can be improved during construction; the connecting ring is simple in overall structure and reliable in stress and repeated installation precision, and has good economic benefits and construction practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering construction, in particular to a connecting ring for offshore construction of a mooring anchor chain. Background Art

[0002] All floating structures at sea need to be anchored by mooring lines. Marine anchor chains and marine mooring anchor chains are important components widely used in mooring lines of ships and marine engineering equipment, which are related to the safety of ship docking and marine mooring projects. For offshore construction, the mooring line is designed in the form of a catenary, but during actual construction and installation, the anchor chain is in a suspended state due to its own weight. If it is pulled into a catenary shape, it requires multi-point lifting and a large axial construction tension. This poses a great challenge to the construction ship and is almost impossible to achieve. The mainstream construction method is to add a section of auxiliary anchor chain for construction and remove it after the construction is completed. However, how to achieve the rapid connection of the two sections of anchor chain during construction, and at the same time, how to achieve the connection position to meet the construction force requirements and pass the size limit of the tensioning equipment, which requires the connection ring to be consistent with the anchor chain section in terms of external dimensions, and can be quickly disassembled and assembled without welding and cutting.

[0003] In order to solve the above problems, we propose a connecting ring for offshore construction of mooring anchor chain. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a connecting ring for offshore construction of a mooring anchor chain. The utility model provides the following technical solutions:

[0005] A connecting ring for offshore construction of a mooring anchor chain comprises a connecting ring body and a clamping flap, wherein the connecting ring body is a C-shaped ring body manufactured by using anchor chain links, positioning platforms are symmetrically arranged on both sides of the opening of the C-shaped ring body, clamping grooves are arranged on both sides of the positioning platforms, and a boss is arranged on the front end surface of the positioning platforms; the clamping flap is a semi-axial part formed by a semi-cylinder with grooves at both ends made of steel and cut longitudinally on the circumference, countersunk screw holes and full-threaded holes for screw installation are symmetrically processed on both sides of the middle of the semi-axial part, grooves are symmetrically processed at both ends of the semi-axial part, buckles are processed on the outer sides of the grooves, and end grooves formed by arc-shaped protrusions are arranged at the upper and lower ends of the grooves, the grooves are nested with the clamping grooves, the end grooves are embedded in the positioning platforms, and the clamping flaps are pre-tightened by screws to form a column.

[0006] Preferably, the screw is a high-strength hexagon socket bolt.

[0007] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0008] This patent forms a complete chain ring structure by processing T-shaped buckle structures at both ends of the opening of the C-shaped ring body, and connecting the groove bosses with the two-petal connecting parts; the two petals are connected by countersunk bolts to form an embedded column, and the grooves in the ends of the column just catch the T-shaped structure of the chain ring to form a stable connection without movement; the middle connecting part can be quickly installed and disassembled through the cross-arranged buckles, which can improve efficiency during construction; the overall structure of the connecting ring is simple, the force and repeated installation accuracy are reliable, and it has good economic benefits and construction practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used to illustrate the purpose of the preferred embodiment and are not considered to be limitations of the present invention. In the entire drawings, the same reference numerals are used to represent the same parts.

[0010] In the attached picture:

[0011] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0012] Figure 2 This is a schematic diagram of the construction and installation of a preferred embodiment of the utility model;

[0013] Figure 3 This is a schematic diagram of disassembly and assembly of a connecting ring of a preferred embodiment of the utility model;

[0014] Figure 4 It is a schematic diagram of the composition of the connecting ring body of the preferred embodiment of the utility model;

[0015] Figure 5 It is a schematic diagram of the card flap composition of the preferred embodiment of the utility model.

[0016] in, Figures 1 to 5 The corresponding relationship between the reference numerals and the components is as follows:

[0017] 1. Anchor chain link; 2. Connecting ring; 21. Connecting ring body; 211. C-shaped ring body; 212. Positioning platform; 213. Slot; 214. Boss; 22. Clamp; 221. Half shaft; 222. Countersunk screw hole; 223. Fully threaded hole; 224. Groove; 225. Buckle; 226. End groove; 23. Screw. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] Combine the following Figures 1 to 5 A connecting ring for offshore construction of a mooring anchor chain according to an embodiment of the utility model is specifically described.

[0021] like Figure 1 As shown, a connecting ring for offshore construction of mooring anchor chain is made by cutting and processing the standard anchor chain link 1 into a C-shaped ring to meet the requirements of embedding the anchor chain link 1, making a T-shaped slot at the open end of the ring, and using bolts to clamp the left and right symmetrical petals into the slots on the structure to connect them into a complete ring to meet the axial force requirements. The overall size is consistent with the anchor chain link 1, meeting the size restrictions of tools such as the anchor chain wheel required for construction;

[0022] like Figure 2 , 3 As shown, the connecting ring 2 is composed of a connecting ring body 21, a clamping flap 22, and a screw 23;

[0023] like Figure 4 As shown, the connecting ring body 21 is processed and manufactured by using the anchor chain link 1, cutting a C-shaped ring body 211 with a certain length of straight section on one side in the middle, and then processing a positioning platform 212 with a certain thickness and upper and lower planes, and then cutting and processing a clamping groove 213 and a boss 214 to form an axially protruding T-shaped buckle to meet the needs of installation and connection with the clamping flap 22;

[0024] like Figure 5As shown, the clamping flap 22 is a semi-cylinder with grooves at both ends of steel, and is cut longitudinally into a semi-axial part 221 by circumferential cutting. Countersunk screw holes 222 and full threaded holes 223 are symmetrically processed on both sides of the middle to meet the installation requirements of the screws 23 and ensure that the connection force meets the requirements of use. At the same time, the end of the screw 23 is sunk below the arc of the semi-axial part 221 without any protruding interference structure; square grooves 224 with a certain depth are symmetrically processed near the middle at both ends of the semi-axial part 221, and the size of the grooves meets the requirements of the boss 214 being embedded. The buckle 225 with a shallower groove processed outside the groove 224 supports the groove 213 to form a secure nested connection; the upper and lower ends of the half-axis member 221 retain arc-shaped protrusions to form end grooves 226, which can be embedded in the positioning platform 212 to limit the flap 22 from moving up and down during installation; according to the different structural forces of the anchor chain link 1, a larger groove can be used to achieve stronger axial force, and at the same time, the countersunk screw hole 222 and the full threaded hole 223 are adjusted accordingly according to the number, specifications and models of the screws 23 to meet the installation needs.

[0025] The screw 23 is inserted from the countersunk screw hole 222 of the clamping flap 22 and screwed into the full threaded hole 223. The two clamping flaps 22 are pre-tightened by the screw 23 to form a column, clamping the connecting platforms at both ends of the connecting ring body 21 to realize a complete chain link.

[0026] The specific installation steps are:

[0027] Step 1: Design the connecting ring 2 according to the specifications of the anchor chain link 1 determined by the mooring system, ensure that the outer dimensions are consistent with the anchor chain link 1, cut the anchor chain link 1 to remove the straight section, form an open connecting ring body 21, process the positioning platform 212, the groove 213, and the boss 214 at the cutting mouth, form a connecting ring body 21 with T-shaped connections at both ends, then process the card flap 22 according to the drawing, match the standard screw 23, and complete the manufacturing of the connecting ring 2.

[0028] Step 2: When the anchor chain of the mooring line has been laid and laid during construction, the anchor chain link 1 at the end of the anchor chain is fixed, the connecting ring body 21 is inserted, and then the end anchor chain link 1 of the temporary lengthened section is connected, and then the two symmetrical clips 22 are inserted into the slots 213 and bosses 214 of the connecting ring body 21, so that the end slots 226 fit on the positioning platform 212 to limit the up and down movement; the grooves 224 and the buckles 225 are respectively inserted into the bosses 214 and the slots 213 to achieve limited docking, and the concave-convex structure meets the axial force requirements of the connecting ring 2; the left and right clips 22 are connected by two sets of screws 23, and the screws 23 are inserted from the countersunk screw holes 222 and screwed into the full threaded holes 223, and the two clips 22 are formed into a column by the screws 23 to achieve a complete chain ring; since the connecting ring 2 and the anchor chain link 1 are exactly the same in size, the anchor chain can enter the anchor chain wheel or clamping equipment without being unable to pass due to different external dimensions.

[0029] Step 3: After the construction is completed, the anchor chain of the mooring line is pulled to the designed position for locking. At this time, the connecting ring 2 installed on the anchor chain link 1 at the anchor chain end of the mooring line is outside the locking device. Loosen the screw 23, disassemble the clamp 22, and move the left and right anchor chain links 1 out of the C-shaped ring body 211 to complete the construction and installation. In this way, the lengthening of the anchor chain during construction can be achieved without causing size changes due to the installation of the connecting piece, and it cannot pass through the anchor chain wheel or the tensioning mechanism.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A connecting ring for offshore construction of a mooring anchor chain, comprising a connecting ring body (21) and a clamping flap (22), characterized in that: The connecting ring body (21) is a C-shaped ring body (211) formed by processing and manufacturing the anchor chain link (1); positioning platforms (212) are symmetrically arranged on both sides of the opening of the C-shaped ring body (211); slots (213) are processed and arranged on both sides of the positioning platform (212); and a boss (214) is arranged on the front end surface of the positioning platform (212); the clamping flap (22) is a semi-axial member (221) formed by longitudinal cutting of a semi-cylinder with grooves at both ends made of steel, and the middle of the semi-axial member (221) is symmetrically processed on both sides to meet the requirements of screw The half-shaft member (221) is provided with a countersunk screw hole (222) and a fully threaded hole (223) for installation. The two ends of the half-shaft member (221) are symmetrically processed with grooves (224). The grooves (224) are processed with buckles (225) on the outer side. The ends of the grooves (224) are provided with end grooves (226) formed with arc-shaped protrusions. The grooves (224) are nested with the buckle grooves (213). The end grooves (226) are embedded in the positioning platform (212). The buckle flaps (22) are pre-tightened by screws (23) to form a column.

2. A connecting ring for offshore construction of mooring anchor chain according to claim 1, characterized in that: The screw (23) is a high-strength hexagon socket bolt.

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