KR0157740B1 - Connector assembly - Google Patents

Abstract

The present invention provides a cylindrical tube body, a cylindrical body having a concave-convex portion with one protrusion and two concave portions in a portion fitted to an end of the cylindrical tube body and in contact with the cylindrical tube body of the cylindrical body, the cylindrical tube. The cylindrical tube body fixing band wound around the cylindrical tube body corresponding to two recesses of the cylindrical concave-convex portion by fitting the cylindrical body to the body, the fixing around the cylindrical tube body sandwiching the cylindrical body The band is wound around the outer periphery and the inner periphery of the band while pressing the fixing band in a state in which the band is wound, and the lower end of the cylindrical body is formed by a male and female to form a lower outer periphery of one cylindrical body and the other cylindrical body. The lower inner circumferential portion is contacted with the O-ring interposed therebetween by pressing on the hook seats respectively formed just above the cylindrical contact portion. Which consists of a hook that is so Wars relates to a pressure-tight high-strength connection structure of the cylindrical tube member.

Description

Pressure resistant watertight high tension connection structure of cylindrical tubular body.

1 is a view schematically showing the state of use of the sonar in which the connecting structure of the present invention is embodied.

2 is a front cross-sectional view cut along a central axis showing the mounting state of the pressure-tight watertight high tension connection structure according to the embodiment of the present invention.

3 is an exploded perspective view of FIG.

FIG. 4 is a front sectional view showing only the connecting structure of FIG. 2 with the electrical devices therein omitted; FIG.

* Explanation of symbols for main parts of the drawings

1: sonar 2: sensor

3: cable 7: winch

19 connector 20 cylindrical tube body

24a, b: cylinder 26,36,60,62: O-ring

30: Hook seat 32: Hook

34: uneven portion 38: protrusion

40: band

The present invention relates to a pressure resistant watertight high tension connection structure with minimal fluid resistance, and more particularly, to minimize the fluid resistance in the water by preventing external connection of the connection portion, and to provide electrical connection by a connector or the like even under high tension and high pressure conditions. Connection structure used in Towed Array Sonar System (TASS), which ensures and maintains tight water tightness even at high pressure, and does not disengage even when tensioned and bent through flexible hose connections. It is about.

Electrical devices used for electronic and electronic devices, transceivers, sensors, or electrical connections are tightly mounted inside cylindrical seals such as tubes, pipes, or hoses to provide electrical connections at installation locations that require watertightness, such as ocean or river. Cylindrical connecting structures are well known, where the mechanical properties such as pressure resistance, tensile strength, bending strength or kinetic properties are maintained well without being affected.

Conventionally known connection structures, such as those used in underwater installation cables, are arranged in a coaxial direction with a conductor located at the center and an insulator or a spacer that maintains the shape of the cable. It is supposed to keep up. In addition, as another type of electrical connection structure used underwater, the connection structure used to make the electrical connection of the cylindrical underwater detection device which is towed by a ship or the like to detect the sound waves generated under the water surface is known.

Such a tow type sonar wave detector is generally composed of a winch part for fixing and storing a ship, a towing cable, an external cylindrical tube body, various electric devices such as a sensor, and a connector for connecting the electric devices to each other. In the form of a sonar having a shape of, for example, an external hose, a hydrophone, a spacer element, a tension wire, a partition, such as a tow type seismic streamer. (bulkhead) and hydrophone mount.

These underwater seismic probes consist of a group of hydrophones arranged in line in a flexible tube or hose, consisting of relatively long sections, with electronic circuits between the sections enabling electrical connections between the sections. There is a built-in relatively short node. According to this configuration, since the length of the section that contains a group of seven or less hydrophones as a unit is much longer than the length of the node that electrically connects them, the cylindrical streamer body is wound using a winch or the like. Bend stresses generated during storage or pulling were likely to damage the connection between the section and the node, and the spacer element or hydrophone mounting portion was directly abutted against the inner wall of the tube or hose. The seismic sound wave detection device has an easy structure, so that when the whole is not in use, it is wound around the winch or stored in the ship, or after the use is unwinded or the mechanical strength is weakened when the connection to the winch.

In addition, since the outer tube or hose is made of a single layer of polyvinyl chloride or polyurethane, the connection part is easily broken when the body is subject to high tensile strength due to the resistance of seawater. Although arranged throughout the entire length of the body, this arrangement prevents the isolation of the longitudinal waves, consisting of the kinetic components propagated directly from the ship and the vibrational components due to the vortices generated around the cable, in each section.

In the case of the above-mentioned exploration device, a streamlined pod in which an electric device is incorporated can be removed outside the periphery of the corresponding streamer part to solve the difficulty of maintenance during repair in case of partial breakage or failure. Although there is an external towed type streamer device, various problems such as fluid resistance are caused due to the external attachment of the container.In order to rule out this, by clamping the outer circumference of the streamer by interposing an adapter between the streamed streamers. The adapter is mounted as a module, and then a cylindrical groove is formed radially inward from the outer peripheral portion of the adapter to detachably mount a cartridge with an electric device therein to improve the maintenance of the streamer device while maintaining good overall shape. Has been proposed to reduce the fluid resistance by maintaining .

However, even in this device, a gap is formed between the wall of the adapter groove and the side wall of the cartridge in the state where the adapter is mounted on the cartridge, causing turbulence or vortex. Since it is installed through, it is difficult to isolate and reduce longitudinal waves. Moreover, since the cartridge is exposed to the outside, i.e., in water, there has been a problem in that it is difficult to achieve watertight between the cartridge itself and the cartridge adapter.

Another type of towing sonar is a towing sonar (TASS). The detector is connected to the ship by a cable and is towed to detect useful sound waves through the signal processing by the sensor part surrounded by a cylindrical tube body.

As such a detector, in addition to the above-mentioned type, a cylindrical tube comprising a plurality of coaxial surface layers of elastomer or plastic material, a hydrophone surrounded by the surface layer, a connector connecting the hydrophone, and a sensor part composed of a filling oil filling the surface layer. It consists of a sieve and vibration isolation module. In the case of the towed sonar, except for the vibration isolating modules located at the front and the rear, the entire sensor unit is arranged in a line with a plurality of surface layers and maintained at a predetermined distance so that the center line is relatively thin. Since they are repeatedly connected to each other, there is no problem in electrical connection and watertightness or fluid resistance. In addition, as the material of the surface layer, the damping characteristic is maintained relatively good and has high rigidity, so it is excellent in noise reduction effect due to mechanical damping, and the bulge wave caused by the turbulence warning layer is not generated, but urethane or elastomer Since the surface is composed of a plurality of surface layers, etc., the detection of the acoustic signal by the acoustic sensor enclosed by the plurality of layers is not sufficient and the connection part is not provided when a high tensile force is applied because there is no separate tension member. Had the disadvantage of breaking.

The present invention has been made to solve the problems of the conventional underwater electrical connection structure as mentioned above, when the sonar detector to which the connection structure of the present invention is applied is wound around the ship by a winch or When bending over the sea level after bending, even if bending stress occurs on the part of the winch, the unit body is old and assembled into several parts, so the whole body is flexible, so it does not bend easily. Excellent assembling force between parts, even if high tensile load of up to 6ton is applied, workability is good without breaking or disconnecting electrical connection. Especially when the internal electric device is modularized, external connection parts can be easily combined or dismantled. Easiness such as replacement work increases and is cylindrical It minimizes the protruding part of the sieve and the gaps inside, minimizing the fluid resistance generated in actual use, and providing the connection structure of the cylindrical tube body that can maintain the watertight state even under high pressure of up to 100 bar. The purpose is.

Another object of the present invention is to provide a sonar which is connected by a connection structure as described above.

In order to achieve the above object, the present invention includes a cylindrical tube body and an uneven part fitted with one protrusion and two recesses in a portion fitted to an end of the cylindrical tube body and in contact with the cylindrical tube body of the cylindrical body. The cylindrical tube body fixing band wound around the cylindrical body and the cylindrical tube body corresponding to the two concave portions of the cylindrical concave-convex portion by fitting the cylindrical body to the cylindrical tube body, the cylindrical tube clamping cylinder The sleeve is wound around the outer periphery and the inner periphery of the band while pressing the fixing band in a state in which a fraud fixing band is wound around the tube body, and the lower periphery of one cylindrical body is formed by forming a lower end of the cylinder. And the lower inner circumference of the other cylindrical body is in contact with the O-ring interposed therebetween, A pressure resistant watertight high tension connection structure of a cylindrical tubular body composed of a hook adapted to be fitted by a press into a formed hook seat is provided.

Hereinafter, a configuration according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, a state of use of a sonar in which a connecting structure according to the present invention is embodied is illustrated. The sonar 1 is generally composed of a sensor unit 2, a cable 3, and a tail rope 17. In use, the sensor unit 2 has its own buoyancy by the filling oil 18 filled therein and is in a neutral buoyancy state in the water, and is connected to the rear of the ship by a cable 3 connected to the front of the sensor unit 2. It is towed to detect sound below sea level and is wound by a winch 7 fixed to the vessel 5. At the rear of the sensor portion, a tail rope 17 is attached on the central axis.

The sensor unit is modularized into a vibration isolation module 9, a signal transmission or data link module 11, a telemetry data module 13, an acoustic module 13, and an array stabilization module 15. 19 are connected and connected respectively.

Referring to FIG. 2, each module of the sensor unit 2 is surrounded by a cylindrical tubular body 20 (hose) made of polyurethane, and is connected in series with the connector 19 to form a linear arrangement as a whole. have. Each module or connector is connected to each other by a kevlar rope 22.

Referring to Figures 3 and 4 the configuration of the connection structure of the present invention that is attached to the outer peripheral connector as follows.

Two circular grooves 28 having a rectangular cross-section along the outer periphery of the cylindrical body 24a, with two user cylindrical bodies 24 a and b being overlapped with the cylindrical lower ends. ) So that the two O-rings 26 fit into their respective grooves 28. Similarly, the hook seat 30 is angled in the outer peripheral direction of the cylindrical body 24a similarly to the upper side of the groove | channel 28, and the hook seat 30 is also squared in the symmetrical position on the cylindrical body 24a which overlaps. On the hook seat 30 of both cylindrical bodies 24a and b, the uneven part 34 which consists of one convex part and two recessed parts is squared, respectively. Another O-ring 36 is fitted in the circumferential direction right inside the uppermost projection 38 above the uneven portion 34. Cylindrical tube body, i.e., hose, is superposed on cylindrical body 24a, b in concave and convex part 34, and then hose clamping band 40 is used for each of the concave portions of concave and convex part 34 respectively. In the crimped state, the sleeve 42 is pressed against the hose 20 on which the hose fixing band 40 is wound. At this time, the hose fixing band 40 serves as a wedge for the outer circumference of the hose in a state in which both ends are cut when the end is cut in contact with the C-shaped gap is formed.

Thus assembled parts of the cylindrical bodies 24a and b and the hose 20 are not only water-tight achieved by the pressing force of the sleeve 42 but also the O-rings are additionally attached to improve sealing performance. Both ends of the assembly part are folded with the O-rings 26 interposed therebetween, and the two hooks 32 as shown in FIG. 3 are pressed into the respective hook seats 30 in the connector 19 upward and downward directions. It is designed to transmit the tensile load applied to both ends of the module while preventing the left and right cylindrical bodies 24a and b from mutually separating. In particular, the cutting surface of the hook 32 is inclined by an angle Φ with respect to the direction of the center axis, and the angle Φ is formed at about 30 ° to 40 °, and the hook 32 is inserted into the hook seat 30. Due to the edge of the inclined surface, the coupling force is increased. Next, on the inner circumferential surfaces of the left and right cylindrical bodies 24a and b, adapter fixing shoulders 46 each provided with four through holes 48 extend radially. Adapters 50a and b having four threaded holes aligned with the through holes 48 are coupled to the left and right cylindrical bodies 24a and b by four bolts 49, respectively. As shown in FIG. 3, the adapters 50a and b have a guide pin 52a in the upper semicircle, and a guide bush 54a in the lower semicircle, respectively. The guide bush 54b is pressed into the upper semicircle and the guide pin 52b is pressed into the lower semicircle to serve as a guide of the connector core 56 during electrical connection. Together, the connection pins 58 of the connector core 56 are protected from torsional breakage by preventing rotation due to the torsion of the connector. Here, the adapters 50a and b are sealed with the connector core 56 by the O-ring 60 and the cylindrical bodies 24a and b by the O-ring 62, respectively.

The connector core 56 fits into the adapter grooves 64 of the core holder 66 to fix the core holder in a state where the guide bushes 54a and b and the guide pins 52a and b are penetrated. It is screwed with the adapter 50 by a bolt (not shown). The assembly of the connector 19 is connected to the modules on the left and right by a kevlar rope 22 molded and fixed to the central portion of the left and right cylindrical bodies 24a and b of the connector. In the circumference of the molding portion 70 of the kevlar rope 22, eight electric wire holes 68 are formed through the upper surfaces of the cylindrical bodies 24a and b with the molding part 70 as the center thereof. A bundle of wires that electrically connect the

The present invention has a connection structure for such an electrical connection, which makes it possible to reliably and easily make the electrical connection under special circumstances such as a towed sonar.

In other words, when the cylindrical tubular connection structure of the present invention is applied to a towing sonar detector, when the cruise ship and the depth of operation are deepened, the conventional connection structure can withstand the large tensile load generated due to the fluid resistance. However, in addition to using a kevlar rope as a tension member as in the present invention, by additionally attaching a high-strength hook 32 to the connector 19 connection portion, the tensile strength can be maximized while reducing the weight of the structure as well as the tensile load. According to this, the hook 32 can be manufactured to have an appropriate strength and dimension, and the separation and disassembly of the connection part can be made only by the hook 32, thereby enabling the modularization of parts. . In addition, since there is no portion protruding over the outer surface of the cylindrical tube body when the hook is mounted, the fluid resistance due to sea water can be greatly reduced, and thus noise generation on the outer circumferential surface of the tube body 20 is reduced as much as possible.

In addition, since the concave-convex portion 34 is formed on the outer peripheral portion of the connector, and the tube body 20 is fitted thereon and is struck by the sleeve 42, the vessel stops due to a breakdown and the sonar does not propagate and sinks up to 100 atm. Even if the degree of external pressure of the hose acts, the watertight pressure tight state can be maintained.

In addition, according to the tube connecting structure of the present invention, when the axial width of the hook (32) is wound around the winch of the ship to increase or decrease the size of the position winding diameter appropriately to determine the dimensions by applying the bending stress unreasonable to the detector You can prevent it.

4 shows members related to electrical connection in the cylindrical tube body 20 in FIG. 1, that is, the connector body 19, the connecting rope 22, and the adapter assembly 50, the connector core 56, and the core holder inside the connector. Shows a state in which electrical connection mechanisms such as 66 are omitted. Therefore, the present invention can be applied to the case where the electrical connection is not necessary and only the movement of the fluid is intended.

In this case, as in the case of the sonar, when the hose 2, etc. needs to be removed during operation, that is, the hose is partially broken or damaged, and this part needs to be replaced or the hose is to be separated and transported. When the hook 32 is dismantled, it is possible to simply separate the hose from the hose so that the work efficiency is greatly improved. Thus, the hose strength can be maintained even under high tension and high pressure as well as the job efficiency is increased, and the tensile strength is increased. Since the hose connecting member protrudes out of the outer circumferential surface of the hose or there is no gap formed between the hose connecting member and the hose, there is no need to worry about increasing the fluid resistance even when used in the flow field.

The present invention as described above is capable of various modifications and changes by those skilled in the art through the detailed description and drawings of the invention within the scope without departing from the spirit and scope described in the appended claims. Will do.

Claims (3)

In the pressure resistant watertight high tension connection structure with minimal fluid resistance, the cylindrical tube body 20 is fitted to the end of the cylindrical tube body 20 and fits with the cylindrical tube body 20 of the cylindrical bodies 24a and b. The cylindrical body 24a, b which has the uneven part 34 in which the one projecting part and the two recessed parts were squared in the part to contact, and the said cylindrical body 24a, b was fitted to the said cylindrical tube body 20, The said cylinder Band 40 for fixing the cylindrical tube body 20 wound around a portion of the cylindrical tube body 20 corresponding to two recesses of the uneven portion 34 of the sieve 24a and b, and the cylindrical body ( While pressing the fixing band 40 while the fixing band 40 is wound around the cylindrical tube body 20 having the 24a and b), the outer peripheral portion and the inner peripheral portion of the band 40 are pressed in close contact. The sleeve 42 and the lower end portions of the cylindrical bodies 24a and b are formed by male and female, and the other end of the lower end outer peripheral portion of one cylindrical body 24a The lower inner circumferential portion of the cylinder 24b is brought into contact with the O-ring 26 therebetween so as to be fitted to the hook seat 30 formed just above the contact portions of the cylinders 24a and b by pressing. Connection structure of the cylindrical tube body, characterized by consisting of a hook (32). The connecting structure of claim 1, wherein the hook is composed of two semi-circular bodies and the cut surface of the semi-circular body is inclined by an angle Φ. The contact surface of the cylindrical tube body 20 and the cylindrical body (24a, b) is formed in the O-ring 36 and the projection 38 above the concave-convex portion 34, the cylindrical tube of claim 1 Connection structure of the cylindrical tube body, characterized in that for sealing the fluid inside the sieve (20).