CN212968885U

CN212968885U - Cable joint fixer

Info

Publication number: CN212968885U
Application number: CN202021800040.1U
Authority: CN
Inventors: 靳春光; 李小涛
Original assignee: Tianjin Grantley Offshore Engineering Equipment Co Ltd
Current assignee: Tianjin Grantley Offshore Engineering Equipment Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-04-13
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a cable joint fixer, including furred gun board, air gun focus, air gun cable and cable joint, the air gun focus is located furred gun board below, the air gun cable is located air gun focus one side, cable joint is located the air gun cable is kept away from one side of air gun focus still includes fixing device, fixing device is located furred gun board one side, the beneficial effects of the utility model are that simple structure adopts the design of no bolt, relies on the rivers that boats and ships travel and bring, keeps cable joint in fixing device's tubulose space, and the reliability is high, can guarantee that cable joint can not drop, low in production cost, cable joint simple to operate is swift, and easy operation, the mounted position selectivity is many, and environmental suitability is strong.

Description

Cable joint fixer

Technical Field

The utility model belongs to the technical field of the cable joint technique and specifically relates to a cable joint fixer is related to.

Background

In the prior art, an artificial seismic source adopted in marine seismic exploration is mainly an air gun seismic source, an air gun is positioned underwater, a special watertight connector is adopted for a connecting cable, and the size and the weight of the special watertight connector are both much larger than those of the cable, so that the cable connector is usually required to be fixed on a suspension device above the air gun. The traditional mode is that two semi-ring clips are locked by bolts or pins to fix the cable joint, but because the impact of seismic waves released by an air gun on the clips is large, the bolts or pins are easy to loosen to cause the cable joint to loosen, and even if bolt locking measures are added under severe vibration, the possibility of loosening and falling still exists.

The application numbers are: 200820108050.1 discloses a suspension connection plate for air gun seismic source, which is characterized in that the air gun is connected below the suspension connection plate by two longitudinal iron chains. The air gun is connected with a tail cable and a high-pressure air pipe, and the other ends of the tail cable and the high-pressure air pipe are fixed on the suspension connecting plate through a fixing pressing block. Near-field seabed seal, depth and pressure sensors are fixed on one side of the suspension connecting plate by adopting a U-shaped fixing clip. The other side of the hanging connecting plate is provided with a snap ring, and two ends of the upper part of the hanging connecting plate are provided with transverse connecting iron chains. However, the connecting plate adopts the U-shaped fixing clip to match with the screw to fix the cable connector, the pin is easy to loosen to cause the cable connector to loosen, the reliability is poor, and the fixing pressing block is additionally arranged to fix the tail cable and the other end of the high-pressure air pipe, so that the structure is complex and the installation is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cable joint fixer.

In order to achieve the above object, the present invention provides a technical solution:

a cable joint fixer comprises a gun hanger plate, an air gun seismic source, an air gun cable and a cable joint, wherein the air gun seismic source is located below the gun hanger plate, the air gun cable is located on one side of the air gun seismic source, the cable joint is located on one side, away from the air gun seismic source, of the air gun cable, and the cable joint fixer further comprises a fixing device, and the fixing device is located on one side of the gun hanger plate.

The fixing device comprises a protective sleeve and a baffle, the protective sleeve is arranged on one side of the gun lifting plate and fixedly connected with the gun lifting plate, and the baffle is arranged on one side of the protective sleeve and fixedly connected with the protective sleeve.

The protective sleeve and the baffle are both of an internal hollow structure, one side, far away from the gun lifting plate, of the protective sleeve and the baffle is provided with an opening, and the direction and the width of the opening in the protective sleeve and the baffle are the same.

The cable joint sets up protective case inboard and through the baffle with protective case joint, the cable joint with the baffle butt.

The inner diameter of the protective sleeve is larger than the outer diameter of the cable connector, and the inner diameter of the baffle is smaller than the outer diameter of the cable connector.

The width of the gap is larger than the outer diameter of the air gun cable and smaller than the outer diameter of the cable joint.

The position of the protective sleeve is in the advancing direction of the ship, and the position of the baffle is far away from the advancing direction of the ship.

One end of the air gun cable is connected with one side of the air gun seismic source, and the cable joint is connected with the other end of the air gun cable.

The air gun seismic source hanging device is characterized by further comprising a hanging gun chain, wherein the hanging gun chain is arranged at the lower end of the hanging gun plate, the upper end of the hanging gun chain is hung and connected with the hanging gun plate through a mounting ring, the lower end of the hanging gun chain is hung and connected with the air gun seismic source through the mounting ring, and the air gun seismic source is hung and connected onto the hanging gun plate through the hanging gun chain.

The lifting plate chain is arranged at the upper end of the lifting gun plate, and the lower end of the lifting plate chain is connected with the lifting gun plate in a hanging mode through the mounting ring.

The utility model has the advantages that:

simple structure adopts no bolt design, relies on the rivers that boats and ships travel and bring, keeps cable joint in fixing device's tubulose space, and the reliability is high, can guarantee that cable joint can not drop, low in production cost, cable joint simple to operate is swift, easy operation, and the mounted position selectivity is many, environmental suitability is strong.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the fixing device of the present invention;

fig. 3 is a front view of the present invention.

In the figure: 1. a ceiling lance plate; 2. an air gun seismic source; 3. an air gun cable; 4. a cable joint; 5. a fixing device; 6. protecting the sleeve; 7. a baffle plate; 8. a lance chain; 9. a hanger chain.

Detailed Description

The invention will be described in further detail with reference to the accompanying drawings,

the utility model provides a cable joint fixer, includes davit board, air gun focus, air gun cable and cable joint, and the air gun focus is located davit board below, and the air gun cable is located air gun focus one side, and the cable joint is located one side that the air gun focus was kept away from to the air gun cable, still includes fixing device, and fixing device is located davit board one side, the utility model discloses the overall structure schematic diagram is shown in FIG. 1.

Fixing device includes protective case and baffle, protective case setting in furred gun board one side and with furred gun board fixed connection, the baffle setting in protective case one side and with protective case fixed connection, protective case and baffle are inside hollow structure, one side that furred gun board was kept away from to protective case and baffle all is equipped with the opening, the direction and the width homogeneous phase of the opening that are equipped with on protective case and the baffle, air gun cable accessible opening places cable joint in protective case, the utility model discloses fixing device structure schematic diagram is shown in fig. 2.

The cable joint sets up in the protective sheath inboard and through baffle and protective case joint, cable joint and baffle butt, and the one end of air gun cable is connected with one side of air gun seismic source, and cable joint is connected with the other end of air gun cable, and cable joint holds in protective sheath intraductally.

The internal diameter of protective case is greater than cable joint's external diameter, and the internal diameter of baffle is less than cable joint's external diameter, and the width of opening is greater than the external diameter of air gun cable and is less than cable joint's external diameter, and the air gun cable can pass through the opening from the side and get into in the protective case, and cable joint can't pass through from the opening.

The position of protective case is in boats and ships advancing direction, boats and ships advancing direction is kept away from to the position of baffle, wherein the service environment of protective case and baffle is under water, its position is in the stern simultaneously, boats and ships drag spray gun board and air gun seismic source with the uniform velocity, therefore the direction of rivers is towards the stern direction all the time, rely on the strength of rivers can let cable joint be in protective sheath all the time and with the baffle butt, guarantee that cable joint can not follow protective sheath and drop, consequently need not the fastening of bolt or pin and just can reach the effect that fixed cable connects, the utility model discloses the front view is shown in fig. 3.

The air gun vibration generator further comprises a hanging gun chain, the hanging gun chain is arranged at the lower end of the hanging gun plate, the upper end of the hanging gun chain is hung and connected with the hanging gun plate through a mounting ring, the lower end of the hanging gun chain is hung and connected with an air gun vibration source through the mounting ring, and the air gun vibration source is hung and connected onto the hanging gun plate through the hanging gun chain.

The device also comprises a hanging plate chain, wherein the hanging plate chain is arranged at the upper end of the hanging gun plate, the lower end of the hanging plate chain is hung and connected with the hanging gun plate through a mounting ring, and the upper end of the hanging plate chain is connected with the stern.

The working principle is as follows:

wherein the service environment of protective case and baffle is under water, its position is in the stern simultaneously, boats and ships drag rifle hanging board and air gun seismic source with the uniform velocity, consequently the direction of rivers is towards the stern direction all the time, because the position of protective case is in boats and ships advancing direction, boats and ships advancing direction is kept away from to the position of baffle, so rely on the strength of rivers to let cable joint be in protective case all the time and with the baffle butt, guarantee that cable joint can not follow protective case and drop in the intraductal, consequently need not the fastening of bolt or pin and just can reach fixed cable joint's effect.

The installation process comprises the following steps:

and horizontally pushing the air gun cable into the protective sleeve through the opening, pulling the air gun cable towards the baffle, and driving the cable joint to enter the protective sleeve and abut against the baffle.

Wherein, the connection mode of protective sleeve and furred gun board can select to weld, also can adopt other fixed modes.

The shape of the lance plate can be a plane, and can also be curved surfaces such as a round pipe, and the like, namely the fixing device can be arranged at various positions, and the adaptability is strong.

The number of the fixing devices can be one or more, and when a plurality of fixing devices are used, the fixing devices need to be installed in parallel.

Wherein, the fixing device can be replaced by two groups of rings with different diameters and openings or similar structures without using a tubular structure.

The beneficial effects of the utility model are that simple structure adopts no bolt design, relies on the rivers that boats and ships travel and bring, keeps cable joint in fixing device's tubulose space, and the reliability is high, can guarantee that cable joint can not drop, low in production cost, and cable joint simple to operate is swift, easy operation, and the mounted position selectivity is many, and environmental suitability is strong.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A cable joint fixer comprises a lance panel (1), an air gun seismic source (2), an air gun cable (3) and a cable joint (4), wherein the air gun seismic source (2) is positioned below the lance panel (1), the air gun cable (3) is positioned on one side of the air gun seismic source (2), and the cable joint (4) is positioned on one side, far away from the air gun seismic source (2), of the air gun cable (3), and is characterized by further comprising a fixing device (5), and the fixing device (5) is positioned on one side of the lance panel (1).

2. A cable splice holder as claimed in claim 1, characterized in that the fixing means (5) comprise a protective sleeve (6) and a flap (7), the protective sleeve (6) being arranged on the side of the ceiling gun plate (1) and fixedly connected to the ceiling gun plate (1), the flap (7) being arranged on the side of the protective sleeve (6) and fixedly connected to the protective sleeve (6).

3. The cable joint fixator according to claim 2, wherein the protective sleeve (6) and the baffle (7) are both hollow structures, the protective sleeve (6) and the baffle (7) are both provided with a notch on the side away from the hammock plate (1), and the direction and the width of the notch on the protective sleeve (6) and the baffle (7) are the same.

4. A cable splice holder as claimed in claim 3, characterized in that the cable splice (4) is arranged inside the protective sleeve (6) and is snapped into the protective sleeve (6) by means of the flap (7), the cable splice (4) abutting against the flap (7).

5. A cable splice holder as claimed in claim 4, characterized in that the protective sleeve (6) has an inner diameter which is larger than the outer diameter of the cable splice (4), and the shutter (7) has an inner diameter which is smaller than the outer diameter of the cable splice (4).

6. A cable splice holder as claimed in claim 4, wherein the width of the gap is greater than the outer diameter of the airgun cable (3) and less than the outer diameter of the cable splice (4).

7. A cable splice holder as claimed in claim 2, characterized in that the protective sleeve (6) is positioned in the direction of advance of the vessel and the shutter (7) is positioned away from the direction of advance of the vessel.

8. A cable connector holder as claimed in claim 1, wherein one end of the air gun cable (3) is connected to one side of the air gun seismic source (2), and the cable connector (4) is connected to the other end of the air gun cable (3).

9. The cable joint fixator according to claim 1, further comprising a lance chain (8), wherein the lance chain (8) is disposed at the lower end of the lance plate (1) and the upper end thereof is hooked with the lance plate (1) by a mounting ring, the lower end of the lance chain (8) is hooked with the air gun seismic source (2) by a mounting ring, and the air gun seismic source (2) is hooked with the lance plate (1) by the lance chain (8).

10. The cable joint holder as claimed in claim 1, further comprising a hanger plate chain (9), wherein the hanger plate chain (9) is disposed at an upper end of the hanger plate (1) and a lower end thereof is hung from the hanger plate (1) by a mounting ring.