CN111769509A - A landing fixture for a multifunctional submarine cable - Google Patents

Abstract

The invention discloses a landing fixing device of a multifunctional submarine cable, which comprises a device main body and a base, wherein the device main body is arranged at 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, reinforcing plates are respectively mounted on the front and back faces of two ends of the mounting plate, an arc-shaped mounting groove is formed in the upper end of the mounting plate, and a gland is mounted on the arc-shaped mounting groove; the device main body consists of an upper part and a lower part; the device is characterized in that the two ends of the device main body are symmetrically provided with compression structures, each compression structure consists of an inner fixing ring and an outer fixing ring, and the outer surface of each inner fixing ring is tightly attached to the inner surface of each outer fixing ring. Through the mode, the landing fixing device for the multifunctional submarine cable is provided with the bidirectional pressing plate, the submarine cable steel wire can be fixed in a bidirectional mode, and the submarine side steel wire and the landing side steel wire are fixed simultaneously.

Description

A landing fixture for a multifunctional submarine cable

technical field

The invention relates to the field of power cables, in particular to a landing fixing device for multifunctional submarine cables.

Background technique

With the promotion of offshore wind power generation, the use of submarine cables is becoming more and more extensive, and the requirements for supporting accessories of submarine cables are also getting higher and higher, especially the requirements for fixed devices for submarine cable landing.

At present, the submarine cable landing is usually fixed by fixing one-side steel wire armor, so there are the following defects:

1) The existing fixing device is fixed by one-side steel wire, which only fixes the steel wire on the seabed side, and cannot fix the steel wire on the landing side of the submarine cable;

2) It is easy to corrode, and the anti-corrosion level is not high and it is difficult to guarantee the use requirements of 25 years of service life;

3) There is no independent grounding point, and the contact area of the grounding point is small, the resistance is too large, and it is easy to generate heat at the contact point after long-term operation, thus causing line failure;

4) Integral structure, installation is difficult to operate, through anchoring from the head of the submarine cable, when the landing length is long, the operation is difficult;

5) There is no base. After installation, a bracket needs to be made on site to fix it, which is prone to unstable fixation.

SUMMARY OF THE INVENTION

The main technical problem to be solved by the present invention is to provide a landing fixing device for a multifunctional submarine cable, which can fix the submarine cable in both directions.

In order to solve the above technical problems, a technical solution adopted in the present invention is: a landing and fixing device for a multifunctional submarine cable, comprising a device main body and a base, and the device main body is installed on the upper end of the base;

The base is composed of a bottom plate and an installation plate, the installation plate is vertically installed on the base, a reinforcing plate is installed on the front and rear surfaces of both ends of the installation plate, and an arc-shaped installation groove is arranged at the upper end of the installation plate, so A gland is installed on the arc-shaped installation groove;

The device main body is composed of upper and lower parts, each part of the device main body is provided with semicircular plates symmetrically on both sides, and the upper and lower semicircular plates on the same side form a flange;

The two ends of the main body of the device are symmetrically installed with a pressing structure, and the pressing structure is composed of two inner and outer fixing rings, the outer surface of the inner fixing ring is close to the inner surface of the outer fixing ring, and the inner fixing ring is composed of two It is composed of wedge-shaped blocks, and the outer fixing ring is composed of two pressing plates.

In a preferred embodiment of the present invention, a semicircular groove is formed at the lower end of the press cover.

In a preferred embodiment of the present invention, the semicircular groove and the arc-shaped mounting groove enclose a fixed circle.

In a preferred embodiment of the present invention, the fixing ring is matched with the device body.

In a preferred embodiment of the present invention, the inner fixing ring is matched with the outer fixing ring.

In a preferred embodiment of the present invention, the outer fixing ring is matched with the flange.

In a preferred embodiment of the present invention, a trapezoidal copper bar is mounted on a surface formed by one side of the mounting plate and the two reinforcing plates located at the front and rear of the side.

In a preferred embodiment of the present invention, a ground wire is externally connected to the copper bar.

The beneficial effects of the present invention are: a multifunctional submarine cable landing fixing device of the present invention, the multifunctional pressing structure has a bidirectional pressing plate, which can fix the submarine cable steel wire in both directions, and fix the submarine side steel wire and the landing side steel wire at the same time.

Description of drawings

Figure 1 is an exploded view of a landing fixture for a multifunctional submarine cable.

The components in the drawings are marked as follows: 1. Main body of the device; 2. Base; 3. Bottom plate; 4. Mounting plate; 5. Reinforcing plate; 6. Copper bar; 7. Flange; ; 10. Arc-shaped installation slot; 11. Wedge-shaped block.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be more clearly defined.

Please refer to FIG. 1 , a landing fixing device for a multifunctional submarine cable includes a device main body 1 and a base 2. The device main body 1 is installed on the upper end of the base 2, and the base 2 plays a fixing role. Multifunctional fixtures are fastened to the foundation on the construction site.

The device main body 1 can fix the submarine cable steel wire in both directions, and fix the submarine side steel wire and the landing side steel wire at the same time.

The base 2 is composed of a bottom plate 3 and a mounting plate 4, the mounting plate 4 is vertically installed on the base 2, and a reinforcing plate 5 is installed on the front and rear surfaces of the two ends of the mounting plate 4, respectively. The mounting plate 4 plays a role of strengthening support.

The upper end of the mounting plate 4 is provided with an arc-shaped mounting groove 10 , the arc-shaped mounting groove 10 is mounted with a pressure cover 8 , and the lower end of the pressure cover 8 is provided with a semi-circular groove, the semi-circular groove and the arc-shaped mounting groove 10 is surrounded by a fixed ring, the fixed ring is matched with the device body, and the device body 1 is fixedly installed on the base 2 through the arc-shaped installation groove 10 and the press cover 8 , Adopt Huff-type structure, easy to install, can be installed directly at the fixed place of the submarine cable, no need to be inserted from the end of the submarine cable.

The device main body 1 is composed of upper and lower parts, the device main body 1 plays a main supporting role, and at the same time connects the steel wires on both sides of the submarine cable, so that its electrical connection is simultaneously connected to the base 2 for grounding;

Each part of the device main body 1 is provided with semicircular plates symmetrically on both sides, and the upper and lower semicircular plates on the same side form a flange 7, and the flange 7 is used for the device main body 1 and the outer Fixed installation of the retaining ring.

The two ends of the device main body 1 are symmetrically installed with compression structures, which are used to fix the steel wires on both sides of the submarine cable, and are compressed by bolts so that they no longer move during the use of the submarine cable.

The pressing structure is composed of inner and outer fixing rings, the outer surface of the inner fixing ring is close to the inner surface of the outer fixing ring, the inner fixing ring is matched with the outer fixing ring, and the inner fixing ring is used for Preliminary fixing, after fixing, the outer fixing ring is installed on the inner fixing ring, so as to press the inner fixing ring tightly, which plays the role of double guarantee.

The inner fixing ring is composed of two wedge-shaped blocks 11, and the outer fixing ring is composed of two pressing plates 9. The inner fixing ring and the outer fixing ring adopt a combined structure, so that they can be directly installed without needing to install from the end of the submarine cable. Head cover.

The outer fixing ring is matched with the flange 7 , and the outer fixing ring and the flange 7 are connected by bolts.

A trapezoidal copper bar 6 is installed on the surface formed by one side of the mounting plate 4 and the two reinforcing plates 5 located at the front and rear of the side. The grounding point, and the contact area of the grounding point is small, the resistance is too large, and it is easy to generate heat at the contact point after long-term operation, thus causing line failure. The use of the copper bar 6 can increase the grounding area of the grounding wire and the multi-functional fixing device, and reduce the resistance. Effectively avoid the hot spot of the contact point.

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

Compared with the prior art, the present invention is a multifunctional submarine cable landing fixing device. The multifunctional pressing structure has a two-way pressing 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 independent grounding point, copper bars are set at the grounding point to ensure that the contact resistance is less than the use requirements, to avoid long-term heat generation, the use of Huff-type structure, easy installation, can be directly installed at the fixed place of the submarine cable , no need to be inserted from the end of the submarine cable.

In the description of the present invention, it should be noted that the components are all common standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or through conventional test methods, The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship described in the accompanying drawings, or when the product of the invention is used. The usual orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a Invention limitations.

The above descriptions are only the embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (8)

1. A landing fixing device of a multifunctional submarine cable is characterized by comprising a device main body and a base, wherein the device main body is arranged at 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, reinforcing plates are respectively mounted on the front and back faces of two ends of the mounting plate, an arc-shaped mounting groove is formed in the upper end of the mounting plate, and a gland is mounted on the arc-shaped mounting groove;

the device main body consists of an upper part and a lower part, wherein two sides of each part of the device main body are symmetrically provided with semicircular plates, and the upper semicircular plate and the lower semicircular plate on the same side form a flange;

the device is characterized in that the two ends of the device main body are symmetrically provided with a compression structure, the compression structure 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-shaped blocks, and the outer fixing ring consists of two pressing plates.

2. The landing fixing device of a multifunctional submarine cable according to claim 1, wherein the lower end of the gland is formed with a semicircular groove.

3. A multifunctional submarine cable landing fixture according to claim 2, wherein said semicircular groove and said arc-shaped mounting groove form a fixed ring.

4. A multifunctional submarine cable landing fixture according to claim 3, wherein said retainer ring is fitted to said body.

5. A landing attachment for a multifunctional submarine cable according to claim 1, wherein said internal retaining ring cooperates with said external retaining ring.

6. A multifunctional submarine cable landing fixture according to claim 1, wherein said outer fixing ring is fitted to said flange.

7. A landing fixture for a multifunctional submarine cable according to claim 1, wherein a trapezoidal copper bar is installed on the surface of one side of said installation plate, which is located in front of and behind said side, and the two said reinforcing plates.

8. A landing fixture for a multifunctional submarine cable according to claim 7, wherein the copper busbar is externally connected to a ground wire.

Images