TWI627802B - Waterproof joint device for subsea instruments - Google Patents

Abstract

The utility model relates to a waterproof joint device for a subsea instrument, which is suitable for being mounted on a casing and comprises an adapter seat, a joint member and a seal group. The adapter includes a first screw end, a first through hole connected to the inside and the outside of the housing, a connecting portion connecting the first screw end, and a first screw connection An abutting surface between the end portion and the connecting portion, a ring groove recessed in the abutting surface, and a first opening formed in the connecting portion and communicating with the first through hole. The coupling member includes a second threaded end portion that can be screwed to the first threaded end portion, a second through hole that communicates with the first through hole, and a flange that connects the second threaded end portion. The seal assembly includes a first closure member that can close the first opening, a leakage stop ring disposed between the annular groove and the housing, and a stop disposed between the housing and the flange. Leakage ring.

Description

Waterproof joint device for subsea instruments

The present invention relates to a joint device, and more particularly to a waterproof joint device for a subsea instrument.

A conventional underwater instrument, such as a ball inner wheel type self-propelled pointing balance device disclosed in the Patent No. I475243 of the Republic of China, is a plurality of electronic components such as a seismic sensing module, a balance sensing module, and the like. It is housed in a watertight outer casing unit so that the device can be sinked into the sea for detection work without being infiltrated by seawater. However, the patent does not disclose how the electronic components housed in the outer casing unit are Electrically connected to the outside world, in the case of being unable to be electrically connected to the outside world, the aforementioned electronic components can only operate on built-in power (such as a battery), and the data obtained during the detection can only rely on the built-in memory to perform the recording. Therefore, after the device has been salvaged from the sea for a period of time, the recorded data can be taken out from the memory, which cannot be supported by applications that have immediate data transmission requirements.

In addition, as disclosed in the U.S. Patent No. 5,387,119, the utility model relates to a waterproof joint applied to underwater seismic operation, which is assembled by a female housing portion, a nut and a male insertion portion. The portion and the male insertion portion respectively have slots and pin headers that can be mutually abutted, and the wires of the opposite ends of the connector are electrically connected after the slot is connected with the pin header, and the nut and the male are The insertion portion is combined to be fixed on the panel of the data capture unit. However, the patent does not describe how the nut fits the male insertion portion to be fixedly mounted on the panel, and is not detailed. The waterproofing measures required for the installation, in addition, the connector is only connected to the power supply and has no other functions, so the application is still limited.

Accordingly, it is an object of the present invention to provide a waterproof joint device for a subsea instrument that solves the aforementioned problems.

Therefore, the waterproof joint device for a subsea instrument of the present invention is suitable for being installed in a communication hole connected to the inside and the outside of a casing, and the subsea instrument accommodated inside the casing is electrically connected to the outside of the casing. One of the electrical connection ends, the waterproof joint device includes an adapter, a coupling member, and a seal set.

The adapter includes a first threaded end extending into the communication hole, a first through hole extending from the end surface of the first screw end portion, and communicating with the first through hole and the outside of the housing The first screwing end portion and the connecting portion of the housing are exposed, an abutting surface connected between the first screwing end portion and the connecting portion, and a ring groove recessed in the abutting surface, and a first opening formed in the connecting portion and communicating with the first through hole, the first through hole being tightly assembled from the one end of the first screw end portion, the yoke The outer diameter of the surface is larger than the aperture of the communication hole to abut against the outer wall surface of the housing.

The coupling member is coupled to the adapter from a side of the connecting hole opposite to the connecting hole, and includes a second screwing end portion detachably screwing the first screwing end portion, and a self-removing An end surface of the second screw end portion penetrates and communicates with the second through hole of the first through hole, and a flange connecting the second screw end portion away from one end of the communication hole, the outer diameter of the flange It is larger than the aperture of the communication hole.

The sealing assembly includes a first sealing member that detachably closes the first opening, a leakage ring disposed between the annular groove and the outer wall surface of the housing, and a sealing ring disposed therein A leak stop ring between the wall and the flange.

The effect of the invention is that the first through hole communicating with the inside and the outside of the casing and the second through hole communicating with the first through hole can be respectively located inside and outside the casing The subsea instrument and the electrical connection end are electrically connected to each other. In detail, the power supply line, the signal control line, the data transmission line, etc. required for the subsea instrument can pass through the first and second through holes. And being connected to the electrical connection end, and through a tether connected between the electrical connection end and another subsea compartment or a maritime operating end, can be operated from another submarine cabin or the sea The terminal performs real-time power supply, control, data transmission/reception, etc. for the subsea instrument in the casing. Moreover, by providing the outer leakage preventing ring and the inner leakage preventing ring, it is possible to reliably perform waterproof measures between the outside of the casing, the communication hole, and the inside of the casing. In addition, by the arrangement of the first opening, the first opening can be used to perform the work of extracting moisture in the casing, so that the present invention can integrate other functions in addition to the electrical connection, and does not need other functions. There is a need to further provide another communication hole in the casing to weaken the structural strength of the casing. In summary, the present invention can achieve the purpose of solving many conventional deficiencies and defects.

Referring to FIG. 1 to FIG. 4, an embodiment of the waterproof joint device for a subsea instrument of the present invention is suitable for being installed in a communication hole 101 connected to the inside and outside of a casing 10, and is accommodated in the casing. 10 one of the internal subsea instruments 20 is electrically connected to one of the external connection ends 30 of the housing 10, and is connected to the other subsea cabin or a maritime operating terminal through a connection to the electrical connection end 30 (not shown) The tether 40 therebetween electrically connects the subsea instrument 20 to another subsea pod or the offshore operating end. It should be noted that the housing 10 may be spherical in shape as shown in FIG. 2 and FIG. 3, and may be other types (such as a flat type), and is not limited thereto.

This embodiment includes an adapter 1, a coupling member 2, and a sealing group 3.

The adapter 1 includes a first threaded end portion 11 extending into the communication hole 101, a first end portion of the first screw end portion 11 and a first and outer portion of the housing 10 a through hole 12, a connecting portion 13 connecting the first threaded end portion 11 and exposing the housing 10, and an abutting surface 14 connected between the first screwing end portion 11 and the connecting portion 13 a ring groove 15 recessed in the abutting surface 14 , a buffer layer 16 disposed on the abutting surface 14 , a first opening 17 opening in the outer wall surface of the connecting portion 13 and communicating with the first through hole 12 And a second opening 18 formed in the outer wall of the connecting section 13 and communicating with the first through hole 12 and spaced apart from the first opening 17. In this embodiment, the first through hole 12 of the adapter 1 extends in a straight line, and the first opening 17 is orthogonal to the first through hole 12, and the second opening 18 is orthogonal to the first through hole The hole 12, but the invention is not limited thereto, and the first through hole 12 of the adapter 1 may also be changed to extend in an L shape.

One end of the first through hole 12 away from the first screw end 11 can be tightly assembled by the electrical connection end 30. The connecting portion 13 has a guiding portion 131 connected to the abutting surface 14 , and the outer diameter of the guiding portion 131 is tapered toward the abutting surface 14 . The outer diameter of the abutment surface 14 is larger than the diameter of the communication hole 101 to abut against the outer wall surface of the casing 10. The buffer layer 16 is made of Teflon and the buffer layer 16 is plated on the abutment surface 14. The first opening 17 is for removing moisture from the inside of the casing 10 and has a first inner screw segment 171. The second opening 18 is filled with a liquid (such as oil) for balancing the pressure inside and outside the housing 10 into the interior of the housing 10, and has a second inner screw segment 181.

The connecting member 2 is coupled to the adapter 1 from a side of the connecting hole 101 opposite to the connecting hole 1 and includes a second screwing mechanism for detachably screwing the first screwing end portion 11 An end portion 21 , an end surface of the second screw end portion 21 is disposed to communicate with the second through hole 22 of the first through hole 12 , and a second screw end portion 21 is connected to the connecting hole 101 The flange 23 at one end has an outer diameter larger than the diameter of the communication hole 101.

The seal assembly 3 includes a first closure member 31 that removably closes the first opening 17 and a first side leakage stop 32 that engages the first closure member 31 to close the first opening 17 a second closing member 33 for detachably closing the second opening 18, a second side sealing ring 34 for engaging the second opening member 33 to close the second opening hole 18, and a guiding portion disposed at the guiding portion a dustproof ring 35 between the outer wall surface of the casing 10 and a leakage preventing ring 36 disposed between the annular groove 15 and the outer wall surface of the casing 10, and an inner wall surface of the casing 10 A leak ring 37 is formed between the flanges 23.

The first closure member 31 has a first outer screw locking portion 311 that can be screwed with the first inner screw locking portion 171 of the first opening hole 17, and an outer diameter connecting the first outer screw locking portion 311. The first head section 312 is larger than the first head section 311, and the first side stop ring 32 is disposed on the outer wall of the first head section 312 and the connecting section 13 adjacent to the first opening 17 The first opening 17 is sealed in a state in which the first opening 31 is screwed into the first opening 17 .

The second closing member 33 has a second outer screw locking portion 331 that can be screwed with the second inner screw locking portion 181 of the second opening 18, and a second outer screw locking portion 331 connected to the second outer screw locking portion 331 and having an outer diameter larger than The second head section 332 of the second outer screw segment 331 is formed in the second head section 332 and communicates with the inner and outer cylinder chambers 333 of the housing 10, and is disposed through the first a second outer screw segment 331 connected to the flow path 334 between the inner portion of the casing 10 and the cylinder chamber 333, a diaphragm 335 movably disposed in the cylinder chamber 333, and a diaphragm 335 connected thereto An elastic member 336 between the annular end walls 337 of one of the second head segments 332. The annular end wall 337 is provided with a through hole 338 communicating with the cylinder chamber 333 and the outside of the casing 10. The second side stop ring 34 is disposed between the second head section 332 and the connecting section 13 adjacent to the outer wall of the second opening 18, and is screwed into the second opening by the second closing member 33. After the hole 18, the second opening 18 is sealed.

The diaphragm 335 partitions the cylinder chamber 333 into two regions, one of which communicates with the interior of the housing 10 through the flow passage 334, and the other region communicates with the housing 10 through the through hole 338. Externally, therefore, the opposite sides of the diaphragm 335 are respectively subjected to internal and external pressures of the casing 10. When the internal pressure of the housing 10 is less than the external pressure of the housing 10, for example, during the process of sinking the housing 10 from the sea surface into the sea, the diaphragm 335 moves toward a pressing direction (ie, toward the flow path). One side of the 334 is moved to squeeze the liquid in the housing 10 and increase the pressure within the housing 10 until the external pressure within the housing 10 is substantially balanced. When the internal pressure of the casing 10 is greater than the external pressure of the casing 10, for example, the process of salvaging the casing 10 from the sea to the surface of the sea The diaphragm 335 moves toward a decompression direction opposite to the pressing direction (ie, moves toward one side of the through hole 338) to lower the pressure in the casing 10 until the inside of the casing 10 and the external pressure. Essentially balanced. The function of the resilient member 336 is to apply a suitable pre-pressure to the diaphragm 335.

Through the above description, the above embodiment has the following advantages, so that the object of the present invention can be achieved:

1. The first through hole 12 communicating with the inside and the outside of the casing 10 and the second through hole 22 communicating with the first through hole 12 can be respectively located inside and outside the casing 10 The subsea instrument 20 is electrically connected to another subsea tank or the offshore operating end, and can immediately supply, control, and transmit/receive the subsea instrument 20 from another submarine cabin or the offshore operating end. ...and many different electrical operations.

2. By providing the outer leakage preventing ring 36 and the inner leakage preventing ring 37, the waterproofing measures between the outside of the casing 10, the communication hole 101 and the inside of the casing 10 can be reliably performed.

3. By providing the dust ring 35, the degree of sealing between the outside of the casing 10 and the communication hole 101 can be further improved.

4. By providing the first opening 17, the function of extracting moisture in the casing can be integrated, and further, without passing through the other communication hole in the casing 10, The present invention adds another additional function beyond the electrical connection.

5. By arranging the second opening 18 and engaging the second closing member 33, the function of balancing the pressure inside and outside the housing 10 is integrated, so that the housing 10 can not be penetrated. Under the condition of a connected hole, another additional function is added to the invention.

6. The buffer layer 16 disposed on the abutting surface 14 can relieve the hardness of the abutting surface 14 due to the metal material during the process of locking the adapter 1 and the coupling member 2 to the housing 10. A high condition may cause the housing 10 to rupture.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

10‧‧‧shell

101‧‧‧Connected holes

20‧‧‧ Subsea Instruments

30‧‧‧Electrical connection end

40‧‧‧Cable

1‧‧‧Adapter

11‧‧‧First screw end

12‧‧‧ first through hole

13‧‧‧ link segment

23‧‧‧Flange

3‧‧‧ Sealing group

31‧‧‧First closure

311‧‧‧First external screw lock

312‧‧‧First head segment

32‧‧‧First side leak stop ring

33‧‧‧Second closure

331‧‧‧Second external screw lock

332‧‧‧Second head segment

131‧‧‧Guide

14‧‧‧Abutment

15‧‧‧ Ring groove

16‧‧‧buffer layer

17‧‧‧First opening

171‧‧‧First inner screw segment

18‧‧‧Second opening

181‧‧‧Second inner screw

2‧‧‧Connected parts

21‧‧‧Second screw end

22‧‧‧Second through hole

333‧‧‧Cylinder room

334‧‧‧ flow path

335‧‧‧Separator

336‧‧‧Flexible parts

337‧‧‧Circular end wall

338‧‧‧through hole

34‧‧‧Second side leak stop ring

35‧‧‧ dust ring

36‧‧‧ outer leakage ring

37‧‧‧End leak loop

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: Figure 1 is an exploded perspective view showing an embodiment of the waterproof joint device for a subsea instrument of the present invention; Figure 3 is a cross-sectional view taken along line III-III of Figure 2; and Figure 4 is a partially enlarged view of Figure 3.

Claims (10)

The utility model relates to a waterproof joint device for a subsea instrument, which is suitable for being installed in a communication hole connected inside and outside of a casing, and a subsea instrument accommodated inside the casing is electrically connected to one of the outside of the casing. Connecting the end portion, the waterproof joint device includes: an adapter seat including a first screw end portion extending into the communication hole, and an end surface extending from the first screw end portion and communicating with the housing a first through hole of the inner portion and the outer portion, a connecting portion connecting the first screw end portion and exposing the housing, an abutting surface connected between the first screw end portion and the connecting portion, and a concave portion a ring groove disposed on the shoulder surface, and a first opening formed in the connecting portion and communicating with the first through hole, the first through hole being free from the one end of the first screw end The connecting end portion is tightly assembled, the outer diameter of the abutting surface is larger than the diameter of the connecting hole to abut against the outer wall surface of the housing; a coupling member from the side of the connecting hole opposite to the connecting seat The adapter seat is assembled, and includes a second screw end end that is detachably screwed to the first screw end portion, and a second An end surface of the end portion penetrates and communicates with the second through hole of the first through hole, and a flange connecting the second screw end portion away from one end of the communication hole, the outer diameter of the flange being larger than the connection The aperture of the hole; and a sealing group comprising a first sealing member that detachably closes the first opening, a leakage ring disposed between the annular groove and the outer wall surface of the housing, and a setting A leakage ring is disposed between the inner wall surface of the casing and the flange. The waterproof joint device for a subsea instrument according to claim 1, wherein the connecting portion has a guiding portion connecting the abutting surface, and an outer diameter of the guiding portion The sealing group further includes a dustproof ring disposed between the guiding portion and an outer wall surface of the housing. The waterproof joint device for a subsea instrument according to claim 1, wherein the first closing member has a first outer screw locking portion, and a first outer screw locking portion is connected and the outer diameter is larger than the first outer portion. a first head section of the threaded section, the first opening has a first inner threaded section for the first outer screw section to be screwed, the seal group further comprising a first head section and the The first side leakage ring between the outer walls of the connecting section. The waterproof joint device for a subsea instrument according to claim 1, wherein the adapter further comprises a second opening formed in the connecting portion and communicating with the first through hole and spaced apart from the first opening The seal set further includes a second closure detachably closing the second opening. The waterproof joint device for a subsea instrument according to claim 4, wherein the second opening is for liquid to be poured into the interior of the casing, and the second closure member has a communication inside and outside the casing. a cylinder chamber and a diaphragm movably disposed in the cylinder chamber. The waterproof joint device for a subsea instrument according to claim 5, wherein the second closure member further has a second outer screw lock segment, and a second outer screw lock segment is connected and the outer diameter is larger than the second a second head section of the outer screw section, the second outer screw section is provided with a flow passage communicating between the inner portion of the housing and the cylinder chamber, and the cylinder is formed inside the second head section And the second head section has an annular end wall, and the annular end wall is provided with a through hole communicating with the cylinder chamber and the outer portion of the casing, the second opening having a second outer hole a second inner screw lock segment of the screw lock segment, the seal set further comprising a second side leak stop ring disposed between the second head portion and the outer wall surface of the joint segment. The waterproof joint device for a subsea instrument according to claim 6, wherein the second closure member further has an elastic member connected between the diaphragm and the annular end wall. The waterproof joint device for a subsea instrument according to claim 4, wherein the first through hole of the adapter extends in a straight line, the first opening is orthogonal to the first through hole, and the second opening Orthogonal to the first through hole. The waterproof joint device for a subsea instrument according to claim 1, wherein the adapter further comprises a buffer layer disposed on the abutment surface. The waterproof joint device for a subsea instrument according to claim 9, wherein the buffer layer is made of Teflon.