阅读说明：本技术 防水性好的光缆连接器 (Optical cable connector with good waterproofness ) 是由 不公告发明人 于 2020-10-20 设计创作，主要内容包括：本发明公开了一种防水性好的光缆连接器,包括套筒本体,所述套筒本体内部设置有室内光缆,所述套筒本体内部一端设置有光缆导头,所述套筒本体内部另一端设置有弹性插头机构,所述套筒本体一侧设置有固定插座壳体,所述固定插座壳体远离套筒本体的一侧外部设置有滑动插座壳体,所述套筒本体和固定插座壳体之间设置有真空密封结构；本发明中公开的弹性插头机构和插座相互插接时,产生一个瞬时的弹力,使插头插入时具有足够的插动力,避免插座和插头接触不实,且在套筒本体和固定插座壳体形成的腔体抽真空后,真空密封结构持续保持该真空状态,避免外部水汽的入侵,具有非常良好的防水效果。(The invention discloses an optical cable connector with good waterproofness, which comprises a sleeve body, wherein an indoor optical cable is arranged in the sleeve body, an optical cable guide head is arranged at one end in the sleeve body, an elastic plug mechanism is arranged at the other end in the sleeve body, a fixed socket shell is arranged at one side of the sleeve body, a sliding socket shell is arranged outside one side of the fixed socket shell, which is far away from the sleeve body, and a vacuum sealing structure is arranged between the sleeve body and the fixed socket shell; when the elastic plug mechanism and the socket disclosed by the invention are mutually inserted, instantaneous elasticity is generated, so that enough insertion power is provided when the plug is inserted, the socket and the plug are prevented from being not in real contact, and after a cavity formed by the sleeve body and the fixed socket shell is vacuumized, the vacuum sealing structure continuously keeps the vacuum state, the invasion of external water vapor is avoided, and the waterproof effect is very good.)

1. An optical cable connector that waterproof nature is good, includes sleeve body (1), its characterized in that: an indoor optical cable (2) is arranged in the sleeve body (1), an optical cable guide head (3) is arranged at one end in the sleeve body (1), an elastic plug mechanism (4) is arranged at the other end in the sleeve body (1), a fixed socket shell (5) is arranged at one side of the sleeve body (1), a sliding socket shell (6) is arranged outside one side, away from the sleeve body (1), of the fixed socket shell (5), a vacuum sealing structure (7) is arranged between the sleeve body (1) and the fixed socket shell (5), a socket (8) is arranged in the fixed socket shell (5) at a position corresponding to the elastic plug mechanism (4), and a connecting sleeve (9) is arranged outside the sleeve body (1);

the vacuum sealing structure (7) comprises a ring cavity (18), an annular groove (19), a pressing ring (20), a connecting rod (21), a nut (22), a second spring (23), a long pressing plate (24), a short pressing plate (25), an interface (26), a through hole (27), a first sealing ring (38) and a second sealing ring (39), wherein the ring cavity (18) is arranged on the inner wall of the sleeve body (1), the annular groove (19) is arranged on one side of the ring cavity (18), the pressing ring (20) is arranged in the annular groove (19), a plurality of connecting rods (21) are arranged at one ends of the pressing ring (20) extending into the annular groove (19), the nut (22) is arranged at one ends of the connecting rods (21) far away from the pressing ring (20), the second spring (23) is sleeved on the connecting rods (21), and a plurality of long pressing plates (24) are arranged outside one ends of the pressing ring (20) extending out of the annular groove (19), a plurality of short pressing plates (25) are arranged on the inner side of one end, extending out of the annular groove (19), of the pressing ring (20), an interface (26) is arranged at one end, close to the pressing ring (20), of the fixed socket shell (5), a through hole (27) is formed in the fixed socket shell (5), a first sealing ring (38) is arranged on the side of an included angle formed by the pressing ring (20) and the long pressing plate (24), and a second sealing ring (39) is arranged on the side of an included angle formed by the pressing ring (20) and the short pressing plates (25);

the elastic plug mechanism (4) comprises a plug guide sleeve (10), a plug seat (11), a plug (12), a first spring (13) and elastic arms (14), wherein the plug guide sleeve (10) is arranged at one end, far away from the optical cable guide head (3), in the sleeve body (1), the plug guide sleeve (10) is arranged at one end, close to the indoor optical cable (2), of the plug guide sleeve (10), the plug seat (11) is arranged at the middle part of the plug seat (11), the plug (12) penetrates through the plug guide sleeve (10), the first spring (13) is arranged at one end, far away from the plug guide sleeve (10), of the plug seat (11), and the elastic arms (14) are arranged outside the plug (12);

a plurality of choke plug holes (28) are formed in one end, close to the sliding socket shell (6), of the fixed socket shell (5), a plurality of compression bars (29) are arranged at positions, corresponding to the choke plug holes (28), of the sliding socket shell (6), and the choke plugs (30) are sleeved on the compression bars (29);

one side that sliding socket casing (6) and fixed socket casing (5) contacted is provided with No. two spout (31), the position that fixed socket casing (5) and No. two spout (31) correspond is provided with No. two slider (32), sliding socket casing (6) outside and adapter sleeve (9) threaded connection.

2. The optical cable connector with good waterproof property as claimed in claim 1, wherein: the plug seat (11) and the inner wall of the sleeve body (1) are provided with a first sliding block (15) in a corresponding position, and a first sliding groove (16) is formed in the inner wall of the sleeve body (1) and in a corresponding position of the sliding block (15).

3. The optical cable connector with good waterproof property as claimed in claim 1, wherein: an arc-shaped head (17) is arranged at one end of the elastic arm (14), and the arc-shaped side of the arc-shaped head (17) is opposite to the socket (8).

4. The optical cable connector with good waterproof property as claimed in claim 1, wherein: a third sealing ring (33) is arranged between the sleeve body (1) and the optical cable guide head (3).

5. The optical cable connector with good waterproof property as claimed in claim 1, wherein: one end of the optical cable guide head (3) penetrating out of the sleeve body (1) is provided with an outdoor optical cable (35), the outdoor optical cable (35) penetrates through the optical cable guide head (3) to be connected with the indoor optical cable (2), and a sealing colloid (36) is arranged inside the optical cable guide head (3).

6. The optical cable connector with good waterproof property as claimed in claim 1, wherein: a stop (37) is arranged on one side of the connecting sleeve (9) outside the sleeve body (1).

Technical Field

The invention relates to the technical field of optical cable connection, in particular to an optical cable connector with good waterproofness.

Background

The optical cable connector is a device for making detachable connection between optical cable and optical cable, and can make two end faces of optical cable be accurately butt-jointed together so as to make the optical energy outputted by transmitting optical cable be maximally coupled into receiving optical cable and can minimize the influence of optical cable on the system due to its intervention in optical link. The existing optical cable connector has certain defects:

after the traditional optical cable connector is connected, due to long-time use, looseness can occur between a plug and a socket, so that transmission of optical signals is blocked, even the phenomenon of incomplete contact occurs during connection, so that installers need to debug repeatedly, and waste of time cost and labor cost is caused;

second, traditional optical cable connector generally uses sealed glue to realize comparatively good sealed effect, but sealed glue can lead to dismantling the difficulty, just will destroy original optical cable connector if need change, leads to dismantling the difficulty, also has current connector to realize sealed through other modes, but sealed effect is not good, through a period of use, appears becoming flexible between the part and will lead to connector cavity internal invasion steam, leads to the transmission of optical cable signal to be obstructed.

Disclosure of Invention

The present invention is directed to provide a waterproof optical cable connector to solve the above problems.

In order to solve the technical problems, the invention provides the following technical scheme: an optical cable connector with good waterproof performance comprises a sleeve body, wherein the sleeve body is of a hollow cylindrical structure and is used for protecting an indoor optical cable and is connected with a fixed socket shell in a sealing mode, one end, close to an optical cable guide head, of the sleeve body is of a closing-up structure, the indoor optical cable is arranged inside the sleeve body and is a section of optical cable located inside the sleeve body, the indoor optical cable can be connected with the optical cable at the socket end through opposite insertion of an elastic plug mechanism and a socket, the optical cable guide head is arranged at one end inside the sleeve body and is of a hollow structure, the edge of the optical cable guide head is convex, the optical cable guide head and the closing-up structure of the sleeve body are mutually stopped, so that the optical cable guide head is partially stopped inside the sleeve body, the other part of the optical cable guide head penetrates out of the sleeve body, an elastic plug mechanism is arranged at the other end inside the sleeve body, and when the elastic plug mechanism and the socket are mutually inserted, the plug connector has the advantages that instantaneous elasticity is generated, enough insertion power is provided when the plug is inserted, the plug is ensured to be accurately inserted into the socket, meanwhile, the elastic plug mechanism can guide the plug to be inserted into the socket, the connection failure of the socket caused by production errors is avoided, one side of the sleeve body is provided with a fixed socket shell, the fixed socket shell is of a cylindrical structure and is used for being connected with the sleeve body in a sealing mode, the outer wall of the fixed socket shell is provided with threads and is used for being connected with a connecting sleeve, a sliding socket shell is arranged on the outer portion of one side, far away from the sleeve body, of the fixed socket shell, the sliding socket shell can slide on the fixed socket shell, the outer wall of the sliding socket shell is provided with threads and is used for being connected with the connecting sleeve, so that the connection between the sleeve body and the fixed socket shell is reinforced, meanwhile, the sealing effect of the vacuum sealing structure is continuously assisted, and a vacuum sealing structure is arranged between the sleeve body and the fixed socket shell, vacuum seal structure connects back with sleeve body and fixed socket casing, with the cavity evacuation that sleeve body and fixed socket casing formed, vacuum seal structure continuously keeps this vacuum state, guarantees itself to have dry environment in the cavity, keeps this dry environment simultaneously, avoids the invasion of outside steam, has very good water-proof effects, the position that corresponds with elastic plug mechanism in the fixed socket casing is provided with the socket, the socket is prior art, the outside of sleeve body is provided with the adapter sleeve, the adapter sleeve is hollow column shell structure, cup joints on the sleeve body, and the inner wall is equipped with the screw thread for be connected with fixed socket casing, slip socket casing.

The elastic plug mechanism comprises a plug guide sleeve, a plug seat, a plug, a first spring and elastic arms, wherein the plug guide sleeve is arranged at one end, far away from the optical cable guide head, in the sleeve body and is of a cylindrical structure and fixed on the inner wall of the sleeve body, the plug seat is arranged at one end, close to the indoor optical cable, of the plug guide sleeve, the plug seat is fixedly connected with the plug, the plug is arranged in the middle of the plug seat and is of a cylindrical structure, the plug is of the prior art and penetrates through the plug guide sleeve, the plug guide sleeve is used for guiding the plug to be opposite to the axis of the socket, the first spring is arranged at one end, far away from the plug guide sleeve, of the plug seat, one end of the first spring abuts against the plug seat, the other end of the first spring abuts against the optical cable guide head, the outer side of the plug is provided with the plurality of elastic arms, and the plurality of elastic arms are uniformly arranged around the plug, the utility model discloses a socket, including socket and plug, the socket is including the spring arm, the spring arm one end is fixed in on the plug lateral wall, the terminal surface outward flange of the other end and socket flushes, at the grafting in-process of socket and plug, the spring arm contacts the socket earlier, the spring arm takes place to interfere with the socket, make the plug receive the resistance, the plug drives the inner wall slip of plug socket at the sleeve body, and then make a spring produce slight compression, the volume of this compression can not lead to indoor optical cable to be compressed and crooked, continue to the direction motion to the socket until the spring arm, disappear with the interference of socket, a spring releases elasticity in the twinkling of an eye, the plug is pegged graft with the socket in the twinkling of an eye under the effect of this elasticity, the condition of pegging graft unrealistic has been avoided taking place.

The plug seat is provided with the slider No. one with the position that the inner wall of sleeve body corresponds, the position that the inner wall of sleeve body and slider correspond is provided with the spout No. one, slider and the cooperation of spout make the plug seat can be along sleeve body axial slip, and as shown in D department of figure 2, have the clearance between spout and the slider No. one, can make and have the fine motion of circumference between plug seat and the sleeve body, when the cooperation is beaten the arm and is made plug and socket grafting, can avoid because of the grafting failure that the production error of plug and socket leads to.

The elastic arm is characterized in that an arc-shaped head is arranged at one end of the elastic arm, the arc-shaped side of the arc-shaped head is opposite to the socket, and the arc-shaped head is used for generating instant interference with the socket.

The vacuum sealing structure comprises a ring cavity, a ring groove, a pressing ring, connecting rods, a nut, a second spring, a long pressing plate, a short pressing plate, an interface, a through hole, a first sealing ring and a second sealing ring, wherein the inner wall of the sleeve body is provided with the ring cavity, the ring cavity is communicated with the interior of the sleeve body, one side of the ring cavity is provided with the ring groove, the ring groove is communicated with the exterior of the sleeve body, the ring cavity is communicated with the ring groove, a blocking step is formed at the position where the ring cavity is connected with the ring groove, the pressing ring is arranged in the ring groove, one end of the pressing ring, which extends into the ring groove, is provided with a plurality of connecting rods, one end, which is far away from the pressing ring, of each connecting rod is provided with the nut, the second spring is sleeved on each connecting rod, one end of the second spring is abutted against the nut, the other end of the pressing ring is abutted against the blocking step formed by the ring cavity and the ring groove, and is in a compression state, the pressing ring groove is arranged outside of the extending end, the long pressing plates are evenly distributed on the outer side of the pressing ring, a plurality of short pressing plates are arranged on the inner side of one end, extending out of the annular groove, of the pressing ring, the long pressing plates and the short pressing plates are integrally formed, one end, close to the pressing ring, of the fixed socket shell is provided with an interface, the shape of the interface is consistent with the shape of the cross section formed by the pressing ring, the long pressing plates and the short pressing plates, a through hole is formed in the fixed socket shell, the through hole is communicated with the interface, when the sleeve body is connected with the fixed socket shell, the pressing ring, the long pressing plates and the short pressing plates are advanced into the interface, then the sleeve body is rotated, the long pressing plates and the short pressing plates enter into the through hole, namely the dotted line position shown in the C position in figure 7 is shown, the sleeve body is connected with the fixed socket shell, a first sealing ring is arranged on the included angle side formed by the pressing ring and the short pressing plates, and a second sealing ring is arranged on the included angle side formed by the pressing ring and the short pressing plate, be provided with the annular corresponding with a sealing ring, No. two sealing rings on sleeve body and the fixed socket casing, the annular of sleeve body is arranged in to a sealing ring, No. two sealing rings, and after sleeve body and fixed socket casing connected, a sealing ring, No. two sealing rings got into the annular of fixed socket casing for the gap between sealed sleeve body and the fixed socket casing can use external vacuum pump to with sleeve body and the interior evacuation of fixed socket casing so far.

The one end that fixed socket casing is close slip socket casing is provided with a plurality of vexed head holes, vexed head hole and through-hole intercommunication, the position that slip socket casing and vexed head hole correspond is provided with a plurality of depression bars, the vexed head has been cup jointed on the depression bar, and the adapter sleeve is rotated to sleeve body and fixed socket casing connection completion back, and the screw thread of adapter sleeve drives slip socket casing and slides to the direction of sleeve body, and it is downthehole to drive the vexed head then and get into the vexed head, utilizes the fastening of slip socket casing adapter sleeve to further seal and compress tightly vacuum seal structure.

One side that sliding socket casing and fixed socket casing contacted is provided with the spout No. two, the position that fixed socket casing and No. two spouts correspond is provided with the slider No. two, No. two spouts and No. two sliders are used for realizing that sliding socket casing slides on fixed socket casing, sliding socket casing outside and adapter sleeve threaded connection.

Be provided with No. three sealing rings between sleeve body and the optical cable guide head, No. three sealing rings are used for sealing between sleeve body and the optical cable guide head, cooperate vacuum seal structure's sealed, fixed connection between optical cable guide head and the sleeve body.

The one end that the sleeve body was worn out to the optical cable guide head is provided with outdoor optical cable, outdoor optical cable passes in the optical cable guide head and indoor optical cable connection, outdoor optical cable and indoor optical cable integrated into one piece, the inside sealing colloid that is provided with of optical cable guide head, sealing colloid is used for the inside through-hole of sealed optical cable guide head.

The outside of the sleeve body is provided with a stop at one side of the connecting sleeve, and the stop is used for preventing the connecting sleeve and the sleeve body from being separated in the transportation process.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention discloses an optical cable connector with good waterproofness, wherein an elastic plug mechanism is disclosed, in the process of inserting a socket and a plug, an elastic arm is firstly contacted with the socket, the elastic arm and the socket are interfered, so that the plug is subjected to resistance, the plug drives a plug seat to slide on the inner wall of a sleeve body, and then a spring is slightly compressed until the elastic arm continues to move towards the socket and the interference with the socket disappears;

2. the invention discloses an optical cable connector with good waterproofness, and discloses a vacuum sealing structure.A cavity formed by a sleeve body and a fixed socket shell is vacuumized after the sleeve body and the fixed socket shell are connected, external air pressure keeps the pressing and fixing effect on a pressing ring, so that a first sealing ring and a second sealing ring are subjected to continuous pressure to seal the sleeve body and the fixed socket shell, even when the effect of the external air pressure on the pressing ring is weakened, the elastic force of a second spring can still keep the pressing and fixing force, the vacuum sealing structure keeps the vacuum state continuously, the dry environment is kept while the dry environment is in the cavity, the invasion of external water vapor is avoided, and a very good waterproof effect is achieved;

3. the invention discloses an optical cable connector with good waterproofness, wherein a sliding socket shell is connected with a connecting sleeve and simultaneously drives a choke plug to enter a choke plug hole, a vacuum sealing structure is further sealed and compressed by utilizing the fastening effect of the connecting sleeve of the sliding socket shell, and the plug and the socket are continuously compacted.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a cross-sectional view of a waterproof optical cable connector according to the present invention;

FIG. 2 is a detail view of the present invention at A;

FIG. 3 is a detail view of the present invention latch arm;

FIG. 4 is a cross-sectional view of the vacuum sealing structure of the present invention;

FIG. 5 is a detail view of the invention at B;

FIG. 6 is a front view of the compression ring, nut, second spring, long compression plate, short compression plate of the present invention;

FIG. 7 is a view of the fixed socket housing of the present invention near the sleeve body side;

fig. 8 is a view of the fixed socket housing of the present invention approaching the sliding socket housing side.

In the figure: 1. a sleeve body; 2. an indoor optical cable; 3. an optical cable guide head; 4. an elastic plug mechanism; 5. fixing the socket housing; 6. a sliding receptacle housing; 7. a vacuum sealing structure; 8. a socket; 9. connecting sleeves; 10. a plug guide sleeve; 11. a plug base; 12. a plug; 13. a first spring; 14. a spring arm; 15. a first sliding block; 16. a first chute; 17. an arc-shaped head; 18. an annular cavity; 19. a ring groove; 20. pressing a ring; 21. a connecting rod; 22. a nut; 23. a second spring; 24. a long press plate; 25. a short press plate; 26. an interface; 27. a through hole; 28. a choke plug hole; 29. a pressure lever; 30. choke plug; 31. a second chute; 32. a second sliding block; 33. a third sealing ring; 35. an outdoor optical cable; 36. sealing the colloid; 37. stopping; 38. a first sealing ring; 39. and a second sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): the invention provides a technical scheme, as shown in fig. 1, an optical cable connector with good waterproofness comprises a sleeve body 1, wherein the sleeve body 1 is of a hollow cylindrical structure and is used for protecting an indoor optical cable 2 and is hermetically connected with a fixed socket shell 5 at the same time, one end of the sleeve body 1 close to an optical cable guide head 3 is of a closing structure, the indoor optical cable 2 is arranged in the sleeve body 1, the indoor optical cable 2 is a section of optical cable positioned in the sleeve body 1 and can be connected with the optical cable at the end of the socket 8 through the mutual insertion of an elastic plug mechanism 4 and the socket 8, one end in the sleeve body 1 is provided with the optical cable guide head 3, the optical cable guide head 3 is of a hollow structure, the middle part of the optical cable guide head 3 is provided with a flange and is mutually stopped by the closing structure of the sleeve body 1, so that part of the optical cable guide head 3 is stopped in the sleeve body 1, the other part of the optical cable guide head penetrates out of the sleeve body 1, the other end in the sleeve body 1 is provided with the elastic plug mechanism 4, when the elastic plug mechanism 4 and the socket 8 are mutually inserted, an instantaneous elastic force is generated, so that enough insertion power is provided when the plug 12 is inserted, the plug 12 is ensured to be accurately inserted into the socket 8, meanwhile, the elastic plug mechanism 4 can guide the plug 12 to be inserted into the socket 8, the connection failure caused by production errors of the socket 8 is avoided, one side of the sleeve body 1 is provided with a fixed socket shell 5, the fixed socket shell 5 is of a cylindrical structure and is used for being hermetically connected with the sleeve body 1, the outer wall of the fixed socket shell 5 is provided with threads and is used for being connected with a connecting sleeve 9, the sliding socket shell 6 is arranged outside one side of the fixed socket shell 5, which is far away from the sleeve body 1, the sliding socket shell 6 can slide on the fixed socket shell 5, the outer wall of the fixed socket shell is provided with the threads and is used for being connected with the connecting sleeve 9, so as to reinforce the connection of the sleeve body 1 and the fixed socket shell 5, and simultaneously continuously assist the sealing function of the vacuum sealing structure 7, be provided with vacuum seal structure 7 between sleeve body 1 and the fixed socket casing 5, vacuum seal structure 7 is connected the back with sleeve body 1 and fixed socket casing 5, the cavity evacuation that forms sleeve body 1 and fixed socket casing 5, vacuum seal structure 7 continuously keeps this vacuum state, guarantee that itself has dry environment in the cavity, keep this dry environment simultaneously, avoid the invasion of outside steam, very good water-proof effects has, the position that corresponds with elastic plug mechanism 4 in the fixed socket casing 5 is provided with socket 8, socket 8 is prior art, the outside of sleeve body 1 is provided with adapter sleeve 9, adapter sleeve 9 is hollow column shell structure, cup joint on sleeve body 1, the inner wall is equipped with the screw thread, be used for with fixed socket casing 5, slip socket casing 6 is connected.

Referring to fig. 1, the elastic plug mechanism 4 includes a plug guide sleeve 10, a plug seat 11, a plug 12, a first spring 13, and a plurality of resilient arms 14, the end of the sleeve body 1 away from the optical cable guide 3 is provided with the plug guide sleeve 10, the plug guide sleeve 10 is a cylindrical structure and is fixed on the inner wall of the sleeve body 1, the end of the plug guide sleeve 10 close to the indoor optical cable 2 is provided with the plug seat 11, the plug seat 11 is fixedly connected with the plug 12, the middle of the plug seat 11 is provided with the plug 12, the plug 12 is a cylindrical structure, as the prior art, the plug 12 passes through the plug guide sleeve 10, the plug guide sleeve 10 is used for guiding the plug 12 to be opposite to the axis of the socket 8, the end of the plug seat 11 away from the plug guide sleeve 10 is provided with the first spring 13, one end of the first spring 13 abuts against the plug seat 11, the other end abuts against the optical cable guide 3, the outer side of the plug 12 is provided with the plurality of resilient arms 14, the plurality of resilient arms 14 are uniformly arranged around the plug 12, 14 one end of bullet arm is fixed in on the 12 lateral walls of plug, the other end flushes with socket 8's terminal surface outward flange, in socket 8 and plug 12's grafting in-process, bullet arm 14 contacts socket 8 earlier, bullet arm 14 and socket 8 take place to interfere, make plug 12 receive the resistance, plug 12 drives plug socket 11 and slides at the inner wall of sleeve body 1, and then make a spring 13 produce slight compression, the volume of this compression can not lead to indoor optical cable 2 to be compressed crooked, continue to the direction motion to socket 8 until bullet arm 14, disappear with socket 8's interference, a spring 13 releases elasticity in the twinkling of an eye, plug 12 pegs graft with socket 8 in the twinkling of an eye under the effect of this elasticity, the condition of peg graft unrealistic has been avoided taking place.

As shown in fig. 2, a first sliding block 15 is arranged at a position corresponding to the inner wall of the plug seat 11 and the sleeve body 1, a first sliding groove 16 is arranged at a position corresponding to the inner wall of the sleeve body 1 and the sliding block 15, the plug seat 11 can axially slide along the sleeve body 1 through the cooperation of the first sliding block 15 and the first sliding groove 16, a gap is formed between the first sliding groove 16 and the first sliding block 15, a circumferential micro-motion can be formed between the plug seat 11 and the sleeve body 1, and when the plug 12 and the socket 8 are plugged through the cooperation of the elastic arm 14, the plugging failure caused by the production error of the plug 12 and the socket 8 can be avoided.

As shown in fig. 3, the elastic arm 14 is provided with an arc-shaped head 17 at one end, the arc-shaped side of the arc-shaped head 17 is opposite to the socket 8, and the arc-shaped head 17 is used for generating instant interference action with the socket 8.

Referring to fig. 4, 6 and 7, the vacuum sealing structure 7 comprises an annular cavity 18, an annular groove 19, a pressing ring 20, a connecting rod 21, a nut 22, a second spring 23, a long pressing plate 24, a short pressing plate 25, a connector 26, a through hole 27, a first sealing ring 38 and a second sealing ring 39, the inner wall of the sleeve body 1 is provided with the annular cavity 18, the annular cavity 18 is communicated with the inside of the sleeve body 1, one side of the annular cavity 18 is provided with the annular groove 19, the annular groove 19 is communicated with the outside of the sleeve body 1, the annular cavity 18 is communicated with the annular groove 19, a blocking step is formed at the connecting position of the annular cavity 18 and the annular groove 19, the pressing ring 20 is arranged in the annular groove 19, one end of the pressing ring 20 extends out of the annular groove 19, one end of the pressing ring 20, which extends into the annular groove 19, is provided with a plurality of connecting rods 21, one end of the connecting rod 21, which is far away from the pressing ring 20, is provided with the nut 22, the connecting rod 21 is sleeved with the second spring 23, one end of the second spring 23 is abutted against the nut 22, the other end of the blocking step is abutted against the annular cavity 18 and the annular groove 19, in a compressed state, a plurality of long pressing plates 24 are arranged on the outer side of one end, extending out of the annular groove 19, of the pressing ring 20, the long pressing plates 24 are evenly distributed on the outer side of the pressing ring 20, a plurality of short pressing plates 25 are arranged on the inner side of one end, extending out of the annular groove 19, of the pressing ring 20, the short pressing plates 25 are evenly distributed on the inner side of the pressing ring 20, the long pressing plates 24 and the short pressing plates 25 are integrally formed, an interface 26 is arranged at one end, close to the pressing ring 20, of the fixed socket shell 5, the shape of the interface 26 is consistent with the shape of the cross section formed by the pressing ring 20, the long pressing plates 24 and the short pressing plates 25, a through hole 27 is formed in the fixed socket shell 5, the through hole 27 is communicated with the interface 26, when the sleeve body 1 is connected with the fixed socket shell 5, the pressing ring 20, the long pressing plates 24 and the short pressing plates 25 firstly enter the interface 26, then the sleeve body 1 is rotated, and the long pressing plates 24 and the short pressing plates 25 enter the through hole 27, namely the dotted line position shown in the position C in figure 7, so far connect sleeve body 1 and fixed socket casing 5, the contained angle side that clamping ring 20 and long clamp plate 24 formed is provided with sealing ring 38 No. one, the contained angle side that clamping ring 20 and short clamp plate 25 formed is provided with sealing ring 39 No. two, be provided with on sleeve body 1 and the fixed socket casing 5 with sealing ring 38 No. one, the corresponding annular of No. two sealing ring 39, sealing ring 38 No. one, No. two sealing ring 39 are arranged in the annular of sleeve body 1, after sleeve body 1 and fixed socket casing 5 are connected, sealing ring 38 No. one, No. two sealing ring 39 get into the annular of fixed socket casing 5, a gap for between sealed sleeve body 1 and the fixed socket casing 5, so far can use external vacuum pump with sleeve body 1 and the interior evacuation of fixed socket casing 5.

As shown in fig. 4 and 8, a plurality of choke plugs 28 are disposed at one end of the fixed socket housing 5 close to the sliding socket housing 6, the choke plugs 28 are communicated with the through holes 27, a plurality of pressure rods 29 are disposed at positions corresponding to the choke plugs 28 of the sliding socket housing 6, the choke plugs 30 are sleeved on the pressure rods 29, the connecting sleeve 9 is rotated after the connection between the sleeve body 1 and the fixed socket housing 5 is completed, the screw thread of the connecting sleeve 9 drives the sliding socket housing 6 to slide towards the sleeve body 1, then the choke plugs 30 are driven to enter the choke plugs 28, and the vacuum sealing structure 7 is further sealed and compressed by the fastening effect of the connecting sleeve 9 of the sliding socket housing 6.

As shown in fig. 5, a second sliding groove 31 is provided on a side where the sliding receptacle housing 6 contacts the fixed receptacle housing 5, a second sliding block 32 is provided at a position where the fixed receptacle housing 5 corresponds to the second sliding groove 31, the second sliding groove 31 and the second sliding block 32 are used for enabling the sliding receptacle housing 6 to slide on the fixed receptacle housing 5, and the outer side of the sliding receptacle housing 6 is in threaded connection with the connecting sleeve 9.

As shown in fig. 1, a third sealing ring 33 is arranged between the sleeve body 1 and the optical cable guide head 3, the third sealing ring 33 is used for sealing the sleeve body 1 and the optical cable guide head 3, and the optical cable guide head 3 is fixedly connected with the sleeve body 1 in cooperation with the sealing of the vacuum sealing structure 7.

As shown in fig. 1, one end of the optical cable guide head 3 penetrating through the sleeve body 1 is provided with an outdoor optical cable 35, the outdoor optical cable 35 penetrates through the optical cable guide head 3 and is connected with the indoor optical cable 2, the outdoor optical cable 35 and the indoor optical cable 2 are integrally formed, a sealing colloid 36 is arranged inside the optical cable guide head 3, and the sealing colloid 36 is used for sealing an inner through hole of the optical cable guide head 3.

As shown in fig. 1, a stop 37 is disposed outside the sleeve body 1 at one side of the connection sleeve 9, and the stop 37 is used to prevent the connection sleeve 9 and the sleeve body 1 from being separated during transportation.

The working principle of the invention is as follows: firstly, the sleeve body 1 is close to the fixed socket housing 5, the press ring 20, the long press plate 24 and the short press plate 25 of the vacuum sealing structure 7 are aligned with the interface 26 of the fixed socket housing 5, then the sleeve body 1 is rotated, the long press plate 24 and the short press plate 25 enter the through hole 27, namely the dotted line position shown in the position C shown in figure 7, the first seal ring 38 and the second seal ring 39 are just positioned between the gap between the sleeve body 1 and the fixed socket housing 5, then the connecting sleeve 9 is rotated to enable the connecting sleeve 9 to move towards the fixed socket housing 5, the sleeve body 1 and the fixed socket housing 5 are fixed, the connecting sleeve 9 and the fixed socket housing 5 are continuously screwed while vacuumizing the sleeve body 1 and the fixed socket housing 5 by using an external vacuum pump, the sleeve body 1 and the fixed socket housing 5 are sealed by the continuous pressure applied to the press ring 20 by the external atmospheric pressure, when the action of the external air pressure on the compression ring 20 is weakened, the elastic force of the second spring 23 keeps the compression force, so that the cavities of the sleeve body 1 and the fixed socket shell 5 are kept in a vacuum state continuously, finally, the connecting sleeve 9 is rotated continuously, the threads of the connecting sleeve 9 drive the sliding socket shell 6 to slide towards the direction of the sleeve body 1, then the choke plug 30 is driven into the choke plug hole 28, and the vacuum sealing structure 7 is further sealed and compressed by the fastening action of the sliding socket shell 6 and the connecting sleeve 9;

when the sleeve body 1 approaches the fixed socket shell 5, the elastic plug mechanism 4 is inserted into the socket 8, firstly, the elastic arm 14 contacts the socket 8, the elastic arm 14 interferes with the socket 8, so that the plug 12 is subjected to resistance, the plug 12 drives the plug seat 11 to slide on the inner wall of the sleeve body 1, and further the first spring 13 generates slight compression, the compression amount does not cause the indoor optical cable 2 to be compressed and bent until the sleeve body 1 drives the elastic arm 14 to continue to move towards the socket 8, the interference with the socket 8 disappears, the first spring 13 instantly releases the elastic force, the plug 12 is instantly plugged with the socket 8 under the action of the elastic force, the situation that the plugging is not real is avoided, the connecting sleeve 9 is connected with the fixed socket shell 5 through threads, the plugging effect is further fastened, and the situation that the plug 8 and the plug 12 are loosened after long-time use is avoided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.