CN213072037U - Watertight pressure-resistant lifting mast junction box for submarine - Google Patents
Watertight pressure-resistant lifting mast junction box for submarine Download PDFInfo
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- CN213072037U CN213072037U CN202022457412.1U CN202022457412U CN213072037U CN 213072037 U CN213072037 U CN 213072037U CN 202022457412 U CN202022457412 U CN 202022457412U CN 213072037 U CN213072037 U CN 213072037U
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Abstract
The utility model provides a watertight withstand voltage lift mast terminal box for submarine guarantees the submarine design and dives the water-tight characteristic in the depth through closely docking and withstand voltage design with lift mast lower part cable outlet frame, has realized the reliable connection and the pressure-bearing of electrical equipment cable for submarine and has sealed. The utility model discloses a drip proof structural design has strengthened the waterproof performance of dripping, water smoke of sealing terminal box, has protected inside watertight electric connector and cable junction's electrical property. The utility model discloses utilize the design of sealed lid collocation twice O type sealing washer, have the biggest deep water-tightness performance of diving of internal active submarine, guarantee in the design is submerged deeply, if the damaged sea water of intaking of lift mast can not enter the cabin along cable path in. The utility model is used for the reliable connection of cable and under-deck cable in the lift mast of submarine submersible ware platforms such as submarine ensures all kinds of information normal conveying.
Description
Technical Field
The utility model belongs to the technical field of reliably connect and the pressure-bearing is sealed, concretely relates to watertight lift mast terminal box for submarine.
Background
The sealing junction box at the lower part of the submarine lifting mast is a passage for various cables to pass through the lifting mast to enter the cabin, so that not only is the electrical performance of the cables ensured, but also the watertight pressure resistance under the submarine limit diving working depth is ensured. The sealed junction box is a transition for reliably connecting an internal cable and an external cable of the lifting mast, and the cable is connected with a watertight electric connector in the sealed junction box to play a role in protecting the cable and connecting the cable.
The submarine sealing junction box has high performance reliability requirements, mainly examines electrical performance and water pressure resistance, and a generally adopted sealing stuffing box cannot meet sealing under large pressure, so the following technical problems need to be solved:
1) the reliable connection of the cable in the lifting mast and the cable in the cabin needs to be realized, and the correct transmission of various electric signals is ensured;
2) when the lifting mast is damaged and water enters, under the high-pressure condition in the maximum design submergence depth of the domestic active submarine, the seawater is ensured not to enter the cabin along the cable passage.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the watertight pressure-resistant lifting mast junction box for the submarine is used for realizing reliable connection and pressure-bearing sealing of cables of electrical equipment for the submarine.
The utility model discloses a solve the technical scheme who above-mentioned technical problem took and be: a watertight pressure-resistant lifting mast junction box for a submarine comprises a cover plate, a sealing cover, a cover, a cable stuffing box, a rubber plate gasket, a watertight electric connector, a first O-shaped sealing ring, a second O-shaped sealing ring and a fastener; a concave groove for mounting a sealing cover is formed in one side surface of the cover plate; the first O-shaped sealing ring is pressed between the bottom surface of the sealing cover and the bottom surface of the concave groove of the cover plate, the second O-shaped sealing ring is pressed between the side surface of the sealing cover and the inner side wall of the concave groove of the cover plate, and the sealing cover is fixed on the cover plate through the sealing cover screw; the surface of the cover plate, which is arranged on the same side as the sealing cover, is a watertight pressure-bearing surface which is tightly attached to the cable outlet frame on the lower part of the lifting mast, and the cover plate is fixed on the cable outlet frame through a fastener; the watertight electric connector comprises a pair of matched socket and plug, the socket of the watertight electric connector is connected with the cable in the lifting mast, and the plug of the watertight electric connector is connected with the cable in the cabin; the fixed ends of the socket and the plug of the watertight electric connector are fixed on the opposite side surface of the cover plate on which the sealing cover is arranged; the rubber plate gasket is tightly pressed between the cover and the cover plate, the cover is fixed on the cover plate through a fastener, and the watertight electric connector is packaged in the junction box; the cable stuffing box is arranged at the cable outlet of the cover and is used for sealing and pressing the in-cabin cable extending out of the cover.
According to the scheme, the surface roughness of the watertight pressure-bearing surface reaches the micron level through high-precision processing.
According to the scheme, the watertight pressure-bearing surface of the cover plate is kept under the pressure of 4.4MPa in the watertight pressure-bearing test for 30min without leakage.
According to the scheme, the edge of the cover plate is provided with the cover plate through holes which are in one-to-one correspondence with the screw holes of the cable outlet frame.
According to above-mentioned scheme, the housing has the ring flange, and the ring flange is equipped with the through-hole with apron mounting hole one-to-one.
According to the scheme, the fastening piece comprises a screw, a flat washer, a spring washer and a sealing cover screw.
According to the scheme, the rubber plate gasket is an oil-resistant asbestos rubber plate.
According to the scheme, the cable stuffing box comprises a base, a nut, a back cap and a sealing element; the base, the nut and the back cap are hollow, and the cable in the cabin extends out of the base, the nut and the back cap; one end of the base is provided with external threads which extend into the base from the outer side of the cover through a cable outlet and are matched with the back cap to be fixed on the cover; the base is provided with an internal thread matched with the external thread of the nut, and the nut is screwed on the base and compresses a sealing element arranged between the cable and the base in the cabin.
Further, the sealing element comprises a metal gasket, a silicon rubber gasket and a plug plate.
Further, the long-term service temperature range of the silicon rubber gasket is-60 ℃ to 130 ℃.
The utility model has the advantages that:
1. the utility model discloses a withstand voltage lift mast terminal box of watertight for submarine guarantees the submarine design and dives the water-tight characteristic in the depth through closely docking and withstand voltage design with lift mast lower part cable outlet frame, has realized the reliable connection and the pressure-bearing of electrical equipment cable for submarine and has sealed.
2. The utility model discloses a drip proof structural design has strengthened the waterproof performance of dripping, water smoke of sealing terminal box, has protected inside watertight electric connector and cable junction's electrical property.
3. The utility model discloses utilize the design of sealed lid collocation twice O type sealing washer, have the biggest deep water-tightness performance of diving of internal active submarine, guarantee in the design is submerged deeply, if the damaged sea water of intaking of lift mast can not enter the cabin along cable path in.
4. The utility model is used for the reliable connection of cable and under-deck cable in the lift mast of submarine submersible ware platforms such as submarine ensures all kinds of information normal conveying.
Drawings
Fig. 1 is an assembly view of an embodiment of the present invention.
Fig. 2 is a K-direction view of an embodiment of the present invention.
Fig. 3 is a cross-sectional view along a-a of an embodiment of the present invention.
Fig. 4 is a schematic diagram of a cable stuffing box according to an embodiment of the present invention.
Fig. 5 is a front view of the watertight pressure test cover plate according to the embodiment of the present invention.
Fig. 6 is a left side view of the watertight pressure test cover plate according to the embodiment of the present invention.
Fig. 7 is a view of the watertight pressure test cover plate according to the embodiment of the present invention in the direction B.
Fig. 8 is a cross sectional view of the watertight pressure test cover plate along the C-C according to the embodiment of the present invention.
In the figure: 1. a cover plate; 2. a sealing cover; 3. a cover; 4. a cable stuffing box; 5. a rubber plate gasket; 6. a watertight electrical connector; 7. a first O-ring seal; 8. a second O-ring seal; 9. a screw; 10. a flat washer; 11. a spring washer; 12. a cover plate through hole; 13. a cover plate mounting hole; 14. a watertight pressure bearing surface; 15. a seal cap screw; 4.1. a base; 4.2. a nut; 4.3. carrying a cap; 4.4. a metal washer; 4.5. a silicone rubber gasket; 4.6. a plug plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the embodiment of the present invention includes a cover plate 1, a sealing cover 2, a cover 3, a cable stuffing box 4, a rubber plate washer 5, a watertight electrical connector 6, a first O-ring 7, a second O-ring 8, a sealing screw 9, a flat washer 10, a spring washer 11, and a cover screw 15, wherein the cable stuffing box 4 includes a base 4.1, a nut 4.2, a back cap 4.3, a metal washer 4.4, a silicone rubber washer 4.5, and a plug plate 4.6; the cover plate 1 is a single-sided precise part, one side surface of the cover plate 1 is processed into a watertight pressure-bearing surface 14 with high precision and is used for being tightly attached to a cable outlet frame at the lower part of the lifting mast; the watertight pressure bearing surface 14 is a mounting surface for butting the cover plate 1 and the lifting mast, the surface roughness is micrometer level, and the precision is higher so as to improve the fitting degree; screw holes on the cable outlet frame correspond to 14 cover plate through holes 12 on the cover plate 1 one by one, and the junction box is fixed on the cable outlet frame through fasteners; the sealing cover 2 is matched with a first radial O-shaped sealing ring 7 and a second radial O-shaped sealing ring 8 to tightly press the cable inlet of the sealing cover plate 1 and is fixed on the cover plate 1 through a sealing cover screw 15, so that the sealing cover is used for ensuring that seawater cannot enter the junction box when a lifting mast is damaged and water enters the junction box under the maximum design submergence depth of a domestic active submarine, and the junction box has watertight pressure resistance for bearing underwater high pressure; the cover 3 encloses the watertight electrical connector 6 in the junction box; the watertight electric connector 6 is used for transferring cables, connecting the cables in the lifting mast to a socket of the watertight electric connector 6, and connecting the cables in the cabin to a plug of the watertight electric connector 6 to complete the electric connection of the cables at two ends and realize signal transmission; the rubber plate washer 5, the cover 3 and the cover plate 1 are fastened together by using a fastener comprising a screw 9, a flat washer 10 and a spring washer 11 to match with a cover plate mounting hole 13; the rubber plate gasket 5 is an oil-resistant asbestos rubber plate, is attached between the cover plate 1 and the cover 3, and is used for preventing water drops, water mist, moisture and steam from entering the junction box from a gap between the cover plate 1 and the cover 3 to influence the electrical characteristics of the watertight electric connector 6 and the cable, so that the anti-dripping function is realized; the cable gland 4 sealingly compresses the cables exiting the cable outlet of the cover 3 for structural sealing of the cables extending from the cover 3.
Fig. 2 is a cross-sectional view along a-a of fig. 1, the sealing cover 2 being used to compress a socket of the watertight electrical connector 6 and being integral with the cover plate 1; the first O-shaped sealing ring 7 and the second O-shaped sealing ring 8 are 2 radial O-shaped sealing rings, are arranged between the concave groove and the sealed surface to form a certain compression amount, play a role in water sealing and meet the requirement of high-pressure sealing of the maximum design depth of the submarine.
Fig. 3 is a schematic view of the stuffing box for cables according to the present invention, the nut 4.2 being used to compress the internal fastener; the silicone rubber gasket 4.5 can meet the requirement of long-term use temperature of-60 ℃ to 130 ℃.
Fig. 4 is the utility model discloses a watertight withstand voltage test apron, with this test apron and the watertight pressure-bearing surface 14 hookup of the apron 1 of terminal box, the another side and the pressure facility of test apron are connected, then carry out the pressurize experiment according to following order: maintaining the pressure at 0.5MPa, 1.0MPa and 2.0MPa for 10 min; maintaining the pressure at 3.0MPa and 4.4MPa for 30 min. The presence or absence of leakage was observed throughout the test and finally the pressure was uniformly reduced to zero.
The utility model discloses assembly and installation steps as follows:
s1: the roughness of the cover plate 1 attached to the watertight bearing surface 14 of the lifting mast is processed into the precision degree of 1.6 mu m;
s2: plugging a watertight electric connector 6 into a cable inlet in the middle of the cover plate 1 from the rear;
s3: placing a first O-shaped sealing ring 7 and a second O-shaped sealing ring 8 into corresponding grooves of the sealing cover 2;
s4: pressing the sealing cover 2 into the cover plate 1, pressing the watertight electric connector 6 tightly, and fixing by using a fastening piece;
s5: the cable stuffing box 4 is fixed on the cover 3 according to the sequence of figure 3;
s6: the rubber plate gasket 5 and the cover hood 3 are sequentially placed on the cover plate 1, and the cover 3 is pressed by 10 sets of fasteners, so that reliable sealing is ensured;
s7: checking the static sealing watertight pressure resistance of the junction box according to the pressure maintaining test;
s8: a rubber asbestos plate is laid between the abutting surfaces of the cable outlet frame of the lifting mast and the junction box, and then the junction box is uniformly and forcibly fastened on the cable outlet frame by 14 bolts.
The above embodiments are only used for illustrating the design ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.
Claims (7)
1. The utility model provides a watertight withstand voltage lift mast terminal box for submarine which characterized in that: the cable gland comprises a cover plate (1), a sealing cover (2), a cover hood (3), a cable stuffing box (4), a rubber plate gasket (5), a watertight electric connector (6), a first O-shaped sealing ring (7), a second O-shaped sealing ring (8) and a fastening piece;
a concave groove for mounting the sealing cover (2) is formed in one side surface of the cover plate (1);
the first O-shaped sealing ring (7) is pressed between the bottom surface of the sealing cover (2) and the bottom surface of the concave groove of the cover plate (1), the second O-shaped sealing ring (8) is pressed between the side surface of the sealing cover (2) and the inner side wall of the concave groove of the cover plate (1), and the sealing cover (2) is fixed on the cover plate (1) through a sealing cover screw (15);
the surface of the cover plate (1) on the same side with the installation sealing cover (2) is a watertight pressure bearing surface (14) which is tightly attached to a cable outlet frame at the lower part of the lifting mast, and the cover plate (1) is fixed on the cable outlet frame through a fastener;
the watertight electric connector (6) comprises a pair of matched socket and plug, the socket of the watertight electric connector (6) is connected with the cable in the lifting mast, and the plug of the watertight electric connector (6) is connected with the cable in the cabin; the fixed ends of the socket and the plug of the watertight electric connector (6) are fixed on the surface of the cover plate (1) on the opposite side where the sealing cover (2) is installed;
the rubber plate gasket (5) is tightly pressed between the cover (3) and the cover plate (1), the cover (3) is fixed on the cover plate (1) through a fastener, and the watertight electric connector (6) is packaged in the junction box;
the cable stuffing box (4) is arranged at the cable outlet of the cover (3) and is used for sealing and pressing the cable in the cabin extending out of the cover (3).
2. The watertight pressure resistant lifting mast junction box for a submarine according to claim 1, wherein: the edge of the cover plate (1) is provided with cover plate through holes (12) which are in one-to-one correspondence with the screw holes of the cable outlet frame.
3. The watertight pressure resistant lifting mast junction box for a submarine according to claim 1, wherein: a cover plate mounting hole (13) is formed in the edge of the cover plate (1); the cover hood (3) is provided with a flange plate, and the flange plate is provided with through holes which are in one-to-one correspondence with the cover plate mounting holes (13).
4. The watertight pressure resistant lifting mast junction box for a submarine according to claim 1, wherein: the fastener comprises a screw (9), a flat washer (10), a spring washer (11) and a sealing cover screw (15).
5. The watertight pressure resistant lifting mast junction box for a submarine according to claim 1, wherein: the rubber plate gasket (5) is an oil-resistant asbestos rubber plate.
6. The watertight pressure resistant lifting mast junction box for a submarine according to claim 1, wherein: the cable stuffing box (4) comprises a base (4.1), a nut (4.2), a back cap (4.3) and a sealing element; the base (4.1), the nut (4.2) and the back cap (4.3) are hollow, and a cable in the cabin extends out of the base; one end of the base (4.1) is provided with external threads, extends into the base through a cable outlet from the outer side of the cover (3), and is fixed on the cover (3) in a matching way with the back cap (4.3); the base (4.1) is provided with an internal thread matched with the external thread of the nut (4.2), and the nut (4.2) is screwed on the base (4.1) and compresses a sealing element arranged between the cable in the cabin and the base (4.1).
7. The watertight pressure resistant lifting mast junction box for a submarine according to claim 6, wherein: the sealing element comprises a metal gasket (4.4), a silicone gasket (4.5) and a plug plate (4.6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022457412.1U CN213072037U (en) | 2020-10-29 | 2020-10-29 | Watertight pressure-resistant lifting mast junction box for submarine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022457412.1U CN213072037U (en) | 2020-10-29 | 2020-10-29 | Watertight pressure-resistant lifting mast junction box for submarine |
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| Publication Number | Publication Date |
|---|---|
| CN213072037U true CN213072037U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022457412.1U Active CN213072037U (en) | 2020-10-29 | 2020-10-29 | Watertight pressure-resistant lifting mast junction box for submarine |
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| CN (1) | CN213072037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550556A (en) * | 2020-05-13 | 2020-08-18 | 中国船舶科学研究中心 | Sealing element for deep sea optical cable high-voltage test |
-
2020
- 2020-10-29 CN CN202022457412.1U patent/CN213072037U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550556A (en) * | 2020-05-13 | 2020-08-18 | 中国船舶科学研究中心 | Sealing element for deep sea optical cable high-voltage test |
| CN111550556B (en) * | 2020-05-13 | 2022-03-01 | 中国船舶科学研究中心 | Sealing element for deep sea optical cable high-voltage test |
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