A multifunctional landing fixing device for submarine cables

Abstract

The present invention discloses a landing and fixing device for a multifunctional submarine cable, comprising a device body and a base, wherein the device body is mounted on the upper end of the base; the base is composed of a bottom plate and a mounting plate, the mounting plate is vertically mounted on the base, and reinforcing plates are respectively mounted on the front and rear surfaces of both ends of the mounting plate, and an arc-shaped mounting groove is provided on the upper end of the mounting plate, and a pressure cover is installed on the arc-shaped mounting groove; the device body is composed of an upper and lower part; a clamping structure is symmetrically mounted at both ends of the device body, and the clamping structure is composed of an inner and outer fixing ring, and the outer surface of the inner fixing ring is tightly attached to the inner surface of the outer fixing ring. In the above manner, the present invention provides a landing and fixing device for a multifunctional submarine cable, and the multifunctional clamping structure has a bidirectional clamping plate, which can fix the submarine cable steel wire in both directions, and fix the seabed side steel wire and the landing side steel wire at the same time.

Description

Technical Field

[0001] The invention relates to the field of power cables, in particular to a landing and fixing device for a multifunctional submarine cable. Background Art

[0002] With the promotion of offshore wind power generation, the use of submarine cables is becoming more and more widespread, and the requirements for supporting accessories of submarine cables are becoming higher and higher, especially the requirements for fixed devices for landing submarine cables.

[0003] At present, the landing of submarine cables is usually fixed by fixing the single-side steel wire armor, which has the following defects:

[0004] 1) The existing fixing device is a single-side steel wire fixing, which only fixes the steel wire on the seabed side and cannot fix the steel wire on the landing side of the submarine cable;

[0005] 2) It is easy to corrode, and the anti-corrosion grade is not high enough to guarantee the service life requirement of 25 years;

[0006] 3) There is no independent grounding point, and the contact area of ​​the grounding point is small, the resistance is too large, and long-term operation is prone to heat at the contact point, thus causing line failure;

[0007] 4) The integral structure is difficult to install and anchor from the cable head. When the landing length is long, it is difficult to operate;

[0008] 5) There is no base, and a bracket needs to be made on site after installation, which may cause the product to be loosely fixed. Summary of the invention

[0009] The main technical problem solved by the present invention is to provide a multifunctional landing and fixing device for submarine cables, which can fix the submarine cables in both directions.

[0010] In order to solve the above technical problems, a technical solution adopted by the present invention is: a landing and fixing device for a multifunctional submarine cable, comprising a device body and a base, wherein the device body is mounted on the upper end of the base;

[0011] The base is composed of a bottom plate and a mounting plate, the mounting plate is vertically mounted on the base, reinforcement plates are respectively mounted on the front and rear surfaces of both ends of the mounting plate, an arc-shaped mounting groove is provided on the upper end of the mounting plate, and a pressure cover is mounted on the arc-shaped mounting groove;

[0012] The device body is composed of an upper and lower part, and semicircular plates are symmetrically arranged on both sides of each part of the device body, and the upper and lower semicircular plates on the same side form a flange;

[0013] The two ends of the device body are symmetrically equipped with clamping structures, which are composed of inner and outer fixing rings. The outer surface of the inner fixing ring is tightly attached to the inner surface of the outer fixing ring. The inner fixing ring is composed of two wedge blocks, and the outer fixing ring is composed of two pressure plates.

[0014] In a preferred embodiment of the present invention, a semicircular groove is formed at the lower end of the gland.

[0015] In a preferred embodiment of the present invention, the semicircular groove and the arc-shaped installation groove form a fixed circle.

[0016] In a preferred embodiment of the present invention, the fixing ring cooperates with the device body.

[0017] In a preferred embodiment of the present invention, the inner fixing ring cooperates with the outer fixing ring.

[0018] In a preferred embodiment of the present invention, the outer fixing ring cooperates with the flange.

[0019] In a preferred embodiment of the present invention, a trapezoidal copper bus is installed on a surface formed by one side of the installation plate and the two reinforcing plates located in front and rear of the side.

[0020] In a preferred embodiment of the present invention, the copper busbar is externally connected to a grounding wire.

[0021] The beneficial effects of the present invention are as follows: the present invention provides a landing and fixing device for a multifunctional submarine cable, and the multifunctional clamping structure has a bidirectional pressing plate, which can fix the submarine cable steel wire in both directions and fix the seabed side steel wire and the landing side steel wire at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an exploded view of a landing and fixing device for a multifunctional submarine cable.

[0023] The markings of the components in the attached drawings are as follows: 1. Device body; 2. Base; 3. Bottom plate; 4. Mounting plate; 5. Reinforcement plate; 6. Copper busbar; 7. Flange; 8. Gland; 9. Pressure plate; 10. Arc-shaped mounting groove; 11. Wedge block. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] See also Figure 1A multifunctional landing fixing device for a submarine cable comprises a device body 1 and a base 2. The device body 1 is installed on the upper end of the base 2. The base 2 plays a fixing role. The multifunctional fixing device is fixed to the foundation of the construction site by bolts.

[0026] The device body 1 can fix the submarine cable wire in both directions, and fix the seabed side wire and the landing side wire at the same time.

[0027] The base 2 is composed of a bottom plate 3 and a mounting plate 4. The mounting plate 4 is vertically mounted on the base 2. Reinforcement plates 5 are respectively mounted on the front and rear surfaces of both ends of the mounting plate 4. The reinforcement plates 5 provide reinforcement support for the mounting plate 4.

[0028] An arc-shaped mounting groove 10 is provided at the upper end of the mounting plate 4, a gland 8 is installed on the arc-shaped mounting groove 10, a semicircular groove is opened at the lower end of the gland 8, the semicircular groove and the arc-shaped mounting groove 10 form a fixing ring, the fixing ring cooperates with the device body, and the arc-shaped mounting groove 10 cooperates with the gland 8, so that the device body 1 is fixedly installed on the base 2, adopts a half-type structure, is easy to install, and can be directly installed at the fixing place of the submarine cable without inserting it from the end of the submarine cable.

[0029] The device body 1 is composed of an upper and lower part. The device body 1 plays a major supporting role and is connected to the steel wires on both sides of the submarine cable so that it is electrically connected and connected to the base 2 for grounding;

[0030] Semicircular plates are symmetrically arranged on both sides of each part of the device body 1, and the upper and lower semicircular plates on the same side form a flange 7, and the flange 7 is used for fixing and installing the device body 1 and the outer fixing ring.

[0031] The two ends of the device body 1 are symmetrically equipped with clamping structures, which are used to fix the steel wires on both sides of the submarine cable and clamp them by bolts so that they do not move during the use of the submarine cable.

[0032] The clamping structure consists of two inner and outer fixing rings. The outer surface of the inner fixing ring is tightly attached to the inner surface of the outer fixing ring. The inner fixing ring cooperates with the outer fixing ring. The inner fixing ring is used for preliminary fixing. After fixing, the outer fixing ring is installed on the inner fixing ring, thereby clamping the inner fixing ring and playing a double protection role.

[0033] The inner fixing ring is composed of two wedge-shaped blocks 11, and the outer fixing ring is composed of two pressure plates 9. The inner fixing ring and the outer fixing ring adopt a combined structure, so that they can be directly installed without inserting them from the end of the submarine cable.

[0034] The outer fixing ring matches with the flange 7 , and the outer fixing ring and the flange 7 are connected by bolts.

[0035] A trapezoidal copper busbar 6 is installed on a surface consisting of one side of the mounting plate 4 and the two reinforcing plates 5 located in front and rear of the side. The copper busbar 6 is externally connected to a grounding wire. Traditional fixtures do not have independent grounding points, and the contact area of ​​the grounding points is small, the resistance is too large, and long-term operation is prone to heat at the contact points, thus causing line failures. The use of the copper busbar 6 can increase the grounding area of ​​the grounding wire and the multifunctional fixture, reduce the resistance, and effectively avoid the heating scene of the contact points.

[0036] The landing fixture is made of stainless steel 316L, and the outer layer is painted with anti-corrosion paint, which greatly improves the anti-corrosion performance.

[0037] Compared with the prior art, the present invention provides a landing and fixing device for a multifunctional submarine cable. The multifunctional clamping structure has a bidirectional pressure plate, which can fix the submarine cable steel wire in both directions, fix the submarine side steel wire and the landing side steel wire at the same time, and has high-strength anti-corrosion performance and an independent grounding point. A copper busbar is arranged at the grounding point to ensure that the contact resistance is less than the use requirement and avoid heat generation during long-term operation. The half-type structure is adopted, which is easy to install and can be directly installed at the fixing place of the submarine cable without being inserted from the end of the submarine cable.

[0038] In the description of the present invention, it should be noted that the components are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional test methods. The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships described in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, 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 multifunctional landing and fixing device for submarine cables, characterized in that: It comprises a device body and a base, wherein the device body is mounted on the upper end of the base; The base is composed of a bottom plate and a mounting plate, the mounting plate is vertically mounted on the base, reinforcement plates are respectively mounted on the front and rear surfaces of both ends of the mounting plate, an arc-shaped mounting groove is provided on the upper end of the mounting plate, and a pressure cover is mounted on the arc-shaped mounting groove; The device body is composed of an upper and lower part, and semicircular plates are symmetrically arranged on both sides of each part of the device body, and the upper and lower semicircular plates on the same side form a flange; The two ends of the device body are symmetrically equipped with a clamping structure, which consists of an inner fixing ring and an outer fixing ring. The outer surface of the inner fixing ring is tightly attached to the inner surface of the outer fixing ring. The inner fixing ring consists of two wedge blocks, and the outer fixing ring consists of two pressure plates. A trapezoidal copper bar is installed on a surface formed by one side of the installation plate and the two reinforcing plates located in front and rear of the side, and the copper bar is externally connected to a grounding wire; The inner fixing ring matches with the outer fixing ring, and the outer fixing ring matches with the flange.

2. A multifunctional submarine cable landing and fixing device according to claim 1, characterized in that: A semicircular groove is provided at the lower end of the gland.

3. A multifunctional submarine cable landing and fixing device according to claim 2, characterized in that: The semicircular groove and the arc-shaped installation groove form a fixed circle.

4. A multifunctional submarine cable landing and fixing device according to claim 3, characterized in that: The fixing ring is matched with the device body.

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