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CN-115854081-B - Sealing device for cable penetration cabin

CN115854081BCN 115854081 BCN115854081 BCN 115854081BCN-115854081-B

Abstract

The invention discloses a sealing device for a cable penetration cabin, and belongs to the technical field of sealing. The sealing device comprises a pressure-resistant welded pipe, a ship board valve, a ball valve and a dynamic sealing valve which are sequentially connected. The pressure-resistant welded pipe is used for being installed and penetrates through the cabin body, and a first through hole is formed in the pressure-resistant welded pipe. The boat side valve comprises a first valve body and a first valve core. The ball valve comprises a second valve body and a ball valve core, wherein the second valve body is internally provided with a containing cavity and a third through hole which is used for coaxially communicating with the second through hole. The dynamic seal valve comprises a third valve body, an elastic ring, a squeezing ring and a driving piece, wherein the third valve body is provided with a fourth through hole which is coaxially communicated with the third through hole, the elastic ring is fixedly and coaxially inserted on the inner peripheral wall of the third valve body, one end face of the elastic ring is abutted against the third valve body, and the squeezing ring is coaxially and slidably arranged on the inner peripheral wall of the third valve body. The sealing device for the cable penetration cabin provided by the invention can conveniently realize the sealing of the cabin body in the cable recycling or releasing process.

Inventors

  • LUO XING
  • LI BING
  • ZHOU WENFEI
  • PU HAIBING
  • YANG FAN
  • ZHENG WENJING
  • ZUO BIN
  • Mao Chaoqi
  • LIU YONG

Assignees

  • 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所）

Dates

Publication Date
20260508
Application Date
20221124

Claims (10)

  1. 1. The sealing device for the cable penetration cabin is characterized by comprising a pressure-resistant welded pipe (1), a ship board valve (2), a ball valve (3) and a dynamic sealing valve (4) which are connected in sequence; the pressure-resistant welded pipe (1) is used for being installed and penetrates through the cabin body, and a first through hole (11) is formed in the pressure-resistant welded pipe (1); The ship board valve (2) comprises a first valve body (21) and a first valve core (22), wherein a second through hole (211) which is coaxially communicated with the first through hole (11) is formed in the first valve body (21), and the first valve core (22) is movably inserted into the first valve body (21) so as to seal the second through hole (211); The ball valve (3) comprises a second valve body (31) and a ball valve core (32), wherein a containing cavity (311) and a third through hole (312) for coaxially communicating with the second through hole (211) are arranged in the second valve body (31), the containing cavity (311) is positioned in the middle of the third through hole (312) and is communicated with the third through hole (312), the ball valve core (32) is arranged in the containing cavity (311) in a lifting manner, and the ball valve core (32) is used for sealing one end of the third through hole (312) through gravity; The dynamic seal valve (4) comprises a third valve body (41), an elastic ring (42), an extrusion ring (43) and a driving piece (44), wherein the third valve body (41) is provided with a fourth through hole (411) coaxially communicated with the third through hole (312), the elastic ring (42) is fixedly and coaxially inserted on the inner peripheral wall of the third valve body (41), one end face of the elastic ring (42) abuts against the third valve body (41), the extrusion ring (43) is coaxially and slidingly arranged on the inner peripheral wall of the third valve body (41), and the driving piece (44) is positioned on the third valve body (41) to drive the extrusion ring (43) to extrude the other end face of the elastic ring (42) after sliding, so that the inner side of the elastic ring (42) is uniformly deformed towards the center of the elastic ring (42).
  2. 2. A sealing device for a cable penetration according to claim 1, further comprising a cutting valve (5), both ends of the cutting valve (5) being connected with the ball valve (3) and the dynamic sealing valve (4), the cutting valve (5) comprising a fourth valve body (51) and a fourth valve core (52), a fifth through hole (511) being provided in the fourth valve body (51), both ends of the fifth through hole (511) being in coaxial communication with the third through hole (312) and the fourth through hole (411), respectively, the fourth valve core (52) being movably inserted in the fourth valve body (51) to seal the fifth through hole (511), an edge of the fourth valve core (52) being provided with a cutting edge for cutting a cable.
  3. 3. The sealing device for a cable through-compartment according to claim 2, wherein the fourth valve body (51) is rotatably inserted in the fourth valve body (52) and is inserted in the middle of the fifth through-hole (511), the fourth valve body (52) has a communication hole (521) thereon, the fourth valve body (52) is configured such that the communication hole (521) communicates with both ends of the fifth through-hole (511) when the fourth valve body (52) is rotated to a first state, the communication hole (521) is dislocated with the fifth through-hole (511) when the fourth valve body (52) is rotated to a second state, and the fifth through-hole (511) is sealed.
  4. 4. A sealing arrangement for a cable through-compartment according to claim 1, characterized in that the driving member (44) is a worm (441) and a worm wheel (442), the worm (441) and the worm wheel (442) being rotatably arranged on the third valve body (41), the worm (441) and the worm wheel (442) being in engagement, an inner circumferential wall of the worm wheel (442) being in threaded engagement with an outer circumferential wall of the pressing ring (43).
  5. 5. The sealing device for cable penetration according to claim 4, wherein the driving member (44) further comprises a hand wheel (443), the hand wheel (443) is located outside the third valve body (41), and the hand wheel (443) is fixedly connected with the worm (441) to drive the worm (441) to rotate.
  6. 6. The sealing device for cable penetration according to claim 1, wherein one end of the pressure welding pipe (1), two ends of the first valve body (21), two ends of the second valve body (31) and two ends of the third valve body (41) are respectively provided with a flange plate (6), and the pressure welding pipe (1), the boat side valve (2), the ball valve (3) and the dynamic sealing valve (4) are detachably connected through two opposite flange plates (6).
  7. 7. A sealing arrangement for a cable through-compartment according to claim 6, characterized in that an O-ring (61) is sandwiched between the opposite flanges (6).
  8. 8. A sealing arrangement for a cable through-compartment according to any one of claims 1-7, characterized in that the sealing arrangement further comprises a leakage collector (7), the leakage collector (7) is fixedly connected with the dynamic sealing valve (4), a sixth through hole (71) and a drain hole (72) are arranged on the leakage collector (7), the sixth through hole (71) is coaxially arranged and communicated with the fourth through hole (411), an elastic sealing ring (73) coaxially arranged with the sixth through hole (71) is arranged on the inner peripheral wall of the leakage collector (7), and the drain hole (72) is perpendicular to and communicated with the sixth through hole (71).
  9. 9. A sealing arrangement for a cable through-compartment according to any one of claims 1-7, characterized in that the receiving cavity (311) has a conical valve core (3111), the conical valve core (3111) having a guiding ramp for guiding the lifting of the ball valve core (32).
  10. 10. A sealing arrangement for a cable through-compartment according to any one of claims 1-7, characterized in that the number of dynamic sealing valves (4) is 2.

Description

Sealing device for cable penetration cabin Technical Field The invention belongs to the technical field of sealing, and particularly relates to a sealing device for a cable penetration cabin. Background When the submarine is in underwater navigation, hundreds of meters of cables in the cabin body need to be released through the shell of the cabin body and stored in the cabin body after being kept for a period of time in order to ensure communication with the outside. However, conventional sealing devices often have difficulty ensuring good tightness to the enclosure during the release and recovery of the cable. Disclosure of Invention Aiming at the defects or improvement demands of the prior art, the invention provides a sealing device for a cable penetrating cabin, which aims to conveniently realize the sealing of a cabin body in the process of recovering or releasing a cable and effectively prevent seawater outside the cabin body from entering the cabin body. The invention provides a sealing device for a cable cabin penetrating, which comprises a pressure-resistant welded pipe, a ship board valve, a ball valve and a dynamic sealing valve which are connected in sequence; The pressure-resistant welded pipe is used for being installed and penetrates through the cabin body, and a first through hole is formed in the pressure-resistant welded pipe; The ship board valve comprises a first valve body and a first valve core, a second through hole coaxially communicated with the first through hole is formed in the first valve body, and the first valve core is movably inserted into the first valve body so as to seal the second through hole; The ball valve comprises a second valve body and a ball valve core, wherein a containing cavity and a third through hole for coaxially communicating the second through hole are arranged in the second valve body, the containing cavity is positioned in the middle of the third through hole and is communicated with the third through hole, the ball valve core is arranged in the containing cavity in a lifting manner, and the ball valve core is used for sealing one end of the third through hole through gravity; The dynamic seal valve comprises a third valve body, an elastic ring, an extrusion ring and a driving piece, wherein the third valve body is provided with a fourth through hole which is coaxially communicated with the third through hole, the elastic ring is fixedly and coaxially inserted on the inner peripheral wall of the third valve body, one end face of the elastic ring is propped against the third valve body, the extrusion ring is coaxially and slidingly arranged on the inner peripheral wall of the third valve body, and the driving piece is positioned on the third valve body to drive the extrusion ring to slide and then extrude the other end face of the elastic ring, so that the inner side of the elastic ring is uniformly deformed towards the center of the elastic ring. Optionally, the sealing device further comprises a cutting valve, two ends of the cutting valve are connected with the ball valve and the dynamic sealing valve, the cutting valve comprises a fourth valve body and a fourth valve core, a fifth through hole is formed in the fourth valve body, two ends of the fifth through hole are respectively and coaxially communicated with the third through hole and the fourth through hole, the fourth valve core is movably inserted into the fourth valve body to seal the fifth through hole, and a cutting edge for cutting a cable is formed at the edge of the fourth valve core. Optionally, the fourth valve core is rotatably inserted on the fourth valve body and is inserted in the middle of the fifth through hole, the fourth valve core is provided with a communication hole, the fourth valve core is configured such that when the fourth valve core rotates to a first state, the communication hole is communicated with two ends of the fifth through hole, when the fourth valve core rotates to a second state, the communication hole is staggered with the fifth through hole, and the fifth through hole is sealed. Optionally, the driving member is a worm and a worm wheel rotatably disposed on the third valve body, the worm and the worm wheel are engaged, and an inner circumferential wall of the worm wheel is screw-fitted with an outer circumferential wall of the pressing ring. Optionally, the driving piece further comprises a hand wheel, the hand wheel is located outside the third valve body, and the hand wheel is fixedly connected with the worm to drive the worm to rotate. Optionally, one end of the pressure-resistant welded pipe, two ends of the first valve body, two ends of the second valve body and two ends of the third valve body are respectively provided with a flange, and the pressure-resistant welded pipe, the ship side valve, the ball valve and the dynamic sealing valve are detachably connected through two opposite flange plates. Optionally, an O-ring is sandwiched between the two opp