A connecting fastener device for laying and recovering submarine cables

Abstract

The present invention discloses a fastener device for laying and recovering submarine cables, including a main body component and a connected part. The left and right ends of the main body component are respectively connected with threaded rods, and a rectangular through groove penetrating the main structure is opened in the middle. An L-shaped slot is provided between the through groove and the outer surface of the main structure as an interface channel. The connected part is provided with an end, a thick-necked cylindrical structure and a thin-necked cylindrical structure at the same axial position, and the diameters decrease successively. The thin-necked cylindrical structure is provided with an axially slidable mechanical device, and a thread is provided at the end. When in use, the end of the connected part is threadedly connected to the relevant equipment, and the mechanical device of the connected part is manually operated to connect or remove it from the main body component. This device has the advantages of easy and convenient operation, time saving and labor saving, etc. The use of this device can greatly improve work efficiency and reduce unnecessary time and labor costs.

Description

Technical Field

[0001] The present invention relates to connecting fasteners, and particularly to a connecting fastener device for submarine cable laying and recovery. Background Art

[0002] There are various types of connecting fasteners, and different fasteners have different application scopes. However, there is still a gap for the fasteners required for submarine cable laying and recovery. Currently, no device designed for this requirement has appeared on the market. Summary of the Invention

[0003] The purpose of the present invention is to provide a connecting fastener device for submarine cable laying and recovery, which has a simple operation process, reduces the time required for disassembling a single device, and improves work efficiency.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A connecting fastener device for submarine cable laying and recovery of the present invention includes a main body component and a connected component. The main body component includes a columnar main body. At the left and right ends of the columnar main body, threaded rods are respectively connected through necking structures. In the middle of the columnar main body, a rectangular through groove is opened from one side wall to the other side wall. The surfaces of the rectangular through groove parallel to the axial direction of the columnar main body are respectively the upper wall and the lower wall of the rectangular through groove, and the surfaces of the rectangular through groove perpendicular to the axial direction of the columnar main body are respectively the left wall and the right wall of the rectangular through groove. An L-shaped slot is opened on the outer side of the upper part of the right wall of the rectangular through groove on the columnar main body, so that an interface channel is formed between the upper part of the right wall of the rectangular through groove and the bottom surface of the upper wall of the rectangular through groove. The edge of the transverse slot surface of the L-shaped slot arranged along the axial direction of the columnar main body is smoothly connected to the top surface of the right wall of the rectangular through groove. The connected component includes an end part, a thick-neck cylinder structure, and a thin-neck cylinder structure connected in sequence. A connected component thread is provided at the end of the thin-neck cylinder structure. The end part, the thick-neck cylinder structure, and the thin-neck cylinder structure are coaxially arranged and the diameters decrease in sequence. A fixed support plate is fixedly arranged circumferentially on the outer wall of the thin-neck cylinder structure near the connected component thread. An anti-detachment cylinder is sleeved on the thin-neck cylinder structure. The anti-detachment cylinder can slide along the axial direction of the thin-neck cylinder structure. Positioning retaining rings are respectively arranged circumferentially on the inner walls of the two open ends of the anti-detachment cylinder. The fixed support plate is arranged inside the anti-detachment cylinder and has a diameter larger than that of the positioning retaining ring. A positioning spring is arranged inside the anti-detachment cylinder. The positioning spring is sleeved on the thin-neck cylinder structure. One end of the positioning spring contacts the positioning retaining ring close to the thick-neck cylinder structure, and the other end contacts the fixed support plate.

[0006] The diameter of the described necked cylinder structure is set to be able to enter the rectangular through slot through the L-shaped slot; the end diameter is greater than the distance between the upper and lower walls of the rectangular through slot, and the diameter of the thick-necked cylinder structure is set to be less than the distance between the upper and lower walls of the rectangular through slot, and it can swing horizontally in the rectangular through slot and is greater than the clearance size at the interface channel. The length of the necked cylinder structure is greater than the diameter of the columnar main body, and the necked cylinder structure can slide back and forth and left and right in the rectangular through slot.

[0007] Advantages of the present invention:

[0008] (1) In the present invention, the two short sides of the square hole inside the main body adopt an arc design, which can increase the force-bearing area and ensure the service life of the equipment. The thickened anti-slip treatment on the outer surface of the main body also improves the working efficiency.

[0009] (2) When the connected part of the present invention does not apply force to the anti-loosening cylinder, due to the elastic force of the spring, the necked cylinder structure will be covered by the anti-loosening cylinder, which can ensure that the necked cylinder structure will not fall off from the L-shaped slot during the operation of the connecting device. The thread of the connected part can be threadedly connected with the auxiliary facilities.

[0010] (3) The present invention fills the gap in the lack of relevant equipment in the professional field and has the advantages of convenient and simple operation, time-saving and labor-saving, etc. Using this device can greatly improve the working efficiency and reduce unnecessary time and labor costs. Description of the drawings

[0011] Figure 1 is a three-dimensional view of a connecting fastener device for submarine cable laying and recovery of the present invention;

[0012] Figure 2 is a three-dimensional view of the main component of a connecting fastener device for submarine cable laying and recovery of the present invention;

[0013] Figure 3 is a cross-sectional view of the anti-loosening cylinder of the connected part of a connecting fastener device for submarine cable laying and recovery of the present invention;

[0014] Figure 4 is a cross-sectional view of the connected part of a connecting fastener device for submarine cable laying and recovery of the present invention;

[0015] Figure 5 is Figure 1 an application schematic diagram of the device shown. Detailed implementation manners

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the convenience of description, only parts related to the present invention rather than all structures are shown in the drawings.

[0017] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0018] The specific chamfer angle of the main body part drawn in the figures of the present invention, the arrangement positions and arrangement angles of the specific structures of each component are schematic and can be adjusted appropriately according to requirements.

[0019] As shown in the drawings, a connecting fastener device for submarine cable laying and recovery provided by the present invention includes a main body component and a component to be connected. The main body component includes a columnar main body 1. At the left and right ends of the columnar main body 1, threaded rods 4 are respectively connected through necking structures. In the middle of the columnar main body 1, a rectangular through groove 3 is formed by penetrating from one side wall to the other side wall. Among them, the surfaces of the rectangular through groove 3 parallel to the axis of the columnar main body 1 are the upper wall and the lower wall of the rectangular through groove 3 respectively, and the surfaces of the rectangular through groove 3 perpendicular to the axis of the columnar main body 1 are the left wall and the right wall of the rectangular through groove 3 respectively. An L-shaped slot 13 is formed on the outer side of the upper part of the right wall of the rectangular through groove 3 on the columnar main body 1, so that an interface channel is formed between the upper part of the right wall of the rectangular through groove 3 and the bottom surface of the upper wall of the rectangular through groove 3. Among them, the edge of the horizontal slot surface of the L-shaped slot 13 arranged along the axial direction of the columnar main body 1 is smoothly connected to the top surface of the right wall of the rectangular through groove 3. Preferably, the outer surface of the columnar main body 1 is treated with thickening and anti-slip to form a rough surface to ensure that it will not slip in a humid environment.

[0020] The connected part mentioned above includes an end part 12, a thick-neck cylinder structure 7, and a thin-neck cylinder structure 8 which are connected and arranged in sequence. A connecting part thread 16 is provided at the end of the thin-neck cylinder structure. The end part 12, the thick-neck cylinder structure 7, and the thin-neck cylinder structure are coaxially arranged and their diameters decrease in sequence. A fixed support plate 9 is fixedly arranged circumferentially on the outer wall of the thin-neck cylinder structure near the connecting part thread 16. An anti-disengagement cylinder 11 is sleeved on the thin-neck cylinder structure 8. The anti-disengagement cylinder can slide axially along the thin-neck cylinder structure. Positioning retaining rings 14 are respectively arranged circumferentially on the inner walls 15 at the two open ends of the anti-disengagement cylinder 11. The fixed support plate 9 is arranged inside the anti-disengagement cylinder and its diameter is larger than that of the positioning retaining ring. A positioning spring 10 is arranged inside the anti-disengagement cylinder. The positioning spring is sleeved on the thin-neck cylinder structure. One end of the positioning spring contacts the positioning retaining ring near the thick-neck cylinder structure side and the other end contacts the fixed support plate.

[0021] The diameter of the thin-neck cylinder structure 8 is set to be able to enter the rectangular through slot 3 through the L-shaped slot 13. A first gap is formed between the bottom surface of the upper wall of the rectangular through slot 3 and the transverse slot surface of the L-shaped slot 13. A second gap is formed between the right outer wall of the upper wall of the rectangular through slot 3 and the longitudinal slot surface of the L-shaped slot 13. The thin-neck cylinder structure 8 can enter the rectangular through slot 3 through the second gap and the first gap.

[0022] The diameter of the end part 12 is larger than the distance between the upper wall and the lower wall of the rectangular through slot 3 and will not pass through the rectangular through slot 3 during use. The diameter of the thick-neck cylinder structure 7 is set to be smaller than the distance between the upper wall and the lower wall of the rectangular through slot and can swing horizontally in the rectangular through slot 3 and is larger than the gap size at the interface channel, that is, larger than the distance between the upper part of the right wall of the rectangular through slot 3 and the bottom surface of the upper wall of the rectangular through slot 3, and cannot enter the L-shaped slot 13. The length of the thin-neck cylinder structure is larger than the diameter of the columnar main body 1. The thin-neck cylinder structure can slide back and forth and left and right in the rectangular through slot.

[0023] Preferably, a rounded prism structure 6 is arranged radially along the columnar main body 1 at the bottom of the upper wall of the rectangular through slot near the interface channel, which can reduce the possibility of the connected part slipping into the slot and falling off during use. The diameter of the thin-neck cylinder structure 8 is set to be able to enter the cavity of the rectangular through slot 3 located inside the rounded prism structure through the L-shaped slot 13. The diameter of the thick-neck cylinder structure 7 is set to be able to swing horizontally in the cavity of the rectangular through slot 3 located inside the rounded prism structure.

[0024] Preferably, a slot chamfer 2 is arranged on the columnar main body 1 at the top position of the longitudinal slot surface of the L-shaped slot 13. It is convenient for the thin-neck cylinder structure 8 of the connected part 5 to enter the inside of the rectangular through slot 3 through the L-shaped slot 13.

[0025] Preferably, the four corners of the rectangular through groove 3 are designed with rounded corners, and the left and right walls are of arc structure, so as to increase the stress area of the hole.

[0026] The usage method of this device is as follows:

[0027] The connecting device of the present invention is mainly used for the laying and recovery of submarine cables. The submarine cable 17 is threadedly connected to the thread 16 of the connected part of the present invention. The plurality of columnar bodies 1 are threadedly connected to the threaded rods 4 at the ends of the adjacent columnar bodies through the submarine ropes 18 on the seabed. And one end of an outer submarine rope 18 is fixedly welded to the electric winch 19, and the other end of the outer submarine rope 18 is threadedly connected to the threaded rod 4 on the outermost columnar body 1. The electric winch 19 can perform operations such as releasing and retracting the submarine rope and the columnar body. Before using the electric winch 19 to lay the submarine rope 18 already connected with the columnar body 1, the connected part that has been threadedly connected to the submarine cable 17 is inserted into the columnar body 1. The submarine cable 17 can be laid to the designated position on the seabed following the submarine rope 18 connected with the columnar body 1. After the submarine cable 17 is laid, the staff dives to the seabed to release the connection state between the columnar body 1 and the connected part, and then uses the electric winch 19 to retract the submarine rope 18 and the columnar body, leaving the submarine cable 17 and the connected part connected to it on the seabed, and the laying work is completed. Before recovering the submarine cable 17, use the electric winch 19 to release the submarine rope 18 already connected with the columnar body 1. The staff dives to the seabed with the submarine rope 18 and restores the device previously left on the seabed to the connected state with the columnar body 1, and uses the electric winch 19 to retract the submarine rope 18 and the device connected to the columnar body, and the recovery work is completed.

[0028] A positioning spring is placed inside the anti - detachment cylinder. The anti - detachment cylinder and the positioning spring are both penetrated by the necked - cylinder structure, ensuring that the two structures move in the axial direction of the necked - cylinder structure. Since the positioning retaining rings at both ends of the anti - detachment cylinder are smaller than the size of the fixed support plate, the fixed support plate can prevent the anti - detachment cylinder from being displaced due to the spring force. When in use, it is necessary to press the end of the anti - detachment cylinder. After the necked - cylinder structure is exposed, it enters the rectangular through - groove through the L - shaped slot. After canceling the force applied to the anti - detachment cylinder, due to the elastic force of the internal positioning spring, the anti - detachment cylinder resumes its position on the necked - cylinder structure, so that the connected part cannot automatically detach from the position of the necked - cylinder structure of the main body. If you want to remove the connected part, you should first apply force to the anti - detachment cylinder to expose part of the necked - cylinder structure, and then remove the necked - cylinder part from the position of the L - shaped slot of the main body.

[0029] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A connecting fastener device for laying and recovering submarine cables, characterized in that: Comprising a main body part and a connected part, the main body part includes a columnar main body (1), threaded rods (4) are respectively connected to the left and right ends of the columnar main body through necking structures, a rectangular through groove (3) is formed through from one side wall to the other side wall in the middle of the columnar main body, the surfaces of the rectangular through groove parallel to the axial direction of the columnar main body (1) are respectively the upper wall and the lower wall of the rectangular through groove, and the surfaces of the rectangular through groove perpendicular to the axial direction of the columnar main body are respectively the left wall and the right wall of the rectangular through groove. An L-shaped slot (13) is formed in the columnar main body (1) on the outer side of the upper part of the right wall of the rectangular through groove, so that an interface channel is formed between the upper part of the right wall of the rectangular through groove and the bottom surface of the upper wall of the rectangular through groove. The edge of the transverse slot surface of the L-shaped slot arranged along the axial direction of the columnar main body is smoothly connected with the top surface of the right wall of the rectangular through groove (3). The connected part includes an end part (12), a thick-neck cylinder structure (7) and a thin-neck cylinder structure (8) which are connected in sequence. A connected part thread (16) is arranged at the end of the thin-neck cylinder structure. The end part, the thick-neck cylinder structure and the thin-neck cylinder structure are coaxially arranged and their diameters decrease in sequence. A fixed support plate (9) is fixed circumferentially on the outer wall of the thin-neck cylinder structure close to the connected part thread. An anti-detachment cylinder (11) is sleeved on the thin-neck cylinder structure. The anti-detachment cylinder can slide along the axial direction of the thin-neck cylinder structure. Positioning retaining rings (14) are respectively arranged circumferentially on the inner walls of the two open ends of the anti-detachment cylinder. The fixed support plate (9) is arranged inside the anti-detachment cylinder and its diameter is larger than that of the positioning retaining ring. A positioning spring (10) is arranged inside the anti-detachment cylinder. The positioning spring is sleeved on the thin-neck cylinder structure. One end of the positioning spring contacts with the positioning retaining ring close to the thick-neck cylinder structure side and the other end contacts with the fixed support plate. The diameter of the thin-neck cylinder structure (8) is set to be able to enter the rectangular through groove (3) through the L-shaped slot (13); the diameter of the end part (12) is larger than the distance between the upper wall and the lower wall of the rectangular through groove. The diameter of the thick-neck cylinder structure (7) is set to be smaller than the distance between the upper wall and the lower wall of the rectangular through groove, and it can swing horizontally in the rectangular through groove (3) and is larger than the gap size at the interface channel. The length of the thin-neck cylinder structure is larger than the diameter of the columnar main body. The thin-neck cylinder structure can slide back and forth and left and right in the rectangular through groove.

2. The connecting fastener device for submarine cable laying and recovery according to claim 1, wherein: The outer surface of the columnar main body is treated with thickening and anti-slip to form a rough surface.

3. The connecting fastener device for submarine cable laying and recovery according to claim 1 or 2, characterized in that: A rounded prism structure (6) is arranged at the bottom of the upper wall of the rectangular through groove close to the interface channel and along the radial direction of the columnar main body. The diameter of the thin-neck cylinder structure is set to be able to enter the cavity of the rectangular through groove inside the rounded prism structure through the L-shaped slot. The diameter of the thick-neck cylinder structure is set to be able to swing horizontally in the cavity of the rectangular through groove inside the rounded prism structure.

4. The connecting fastener device for submarine cable laying and recovery according to claim 3, characterized in that: A slot chamfer is arranged on the columnar main body at the top position of the longitudinal slot surface of the L-shaped slot.

5. The connecting fastener device for submarine cable laying and recovery according to claim 4, characterized in that: Rounded corners are provided at all four corners inside the rectangular through groove, and the left wall and the right wall adopt an arc structure.

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