Optical cable splice closure for preventing external water intrusion

Abstract

The present invention discloses an optical cable splice enclosure for preventing external water intrusion, specifically relating to the technical field of optical cable splice enclosures, which includes a bottom box, a support frame, a bidirectional screw rod, and a synchronous constant-force waterproof mechanism; the synchronous constant-force waterproof mechanism includes a micro reduction motor, a torque force sensor, two sleeve blocks, a linkage bar, a concave block, two hinge shafts, and a push sleeve rod, and also includes a fitting limit sealing mechanism and a timely waterproof detection component. Through the synchronous constant-force waterproof mechanism, the present invention can timely perform synchronous fitting limit waterproofing on the penetration parts of the two optical cable sleeves, prevent external water from penetrating into the optical cable splice enclosure, avoid water ingress and damage to the wiring parts of the optical cable equipment, and provide more timely waterproof protection, greatly improving the waterproof protection of the optical cable splice enclosure, thereby solving the problems that it is difficult to timely know the two penetration parts and it is also difficult to timely perform synchronous fitting limit waterproofing on the two penetration parts, and the waterproof protection of the optical cable splice enclosure is relatively poor.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cable splice closures, and more specifically, to an optical cable splice closure for preventing external water intrusion. Background Art

[0002] Optical cable splice closures mainly provide waterproof protection and external strength protection. Among them, waterproof protection can effectively extend the service life of the equipment. Long-term water intrusion will accelerate the aging and corrosion of the internal components of the splice closure, thus affecting its service life. Through effective waterproof protection, the service life of the optical cable splice closure can be significantly extended. Secondly, it can reduce network interruptions caused by equipment failures. In addition, the external strength protection of the optical cable splice closure can resist external force damage from the environment, such as animal bites and human sabotage. This helps to protect the optical fiber joints and connection components inside the splice closure and prevent damage caused by external forces.

[0003] In the existing published literature, the patent with the patent publication number CN110806628A discloses a fireproof and waterproof optical cable splice closure. This optical cable splice closure forms a sealed structure by making the installation box; the upper box cover and the lower box cover are made of compression-resistant and drop-resistant plates. A waterproof edge cavity is provided on the surface of the lower box cover in contact with the upper box cover, and a waterproof rubber cotton is provided on the surface of the lower box cover in contact with the upper box cover. A strip-shaped sealing groove is provided on the surface of the lower box cover outside the waterproof edge cavity, and an elastic sealing strip is fixed on the surface of the upper box cover. The advantage of this invention is that it has good fireproof and waterproof performance. However, this patent has the following defects;

[0004] After the optical cable splice closure protects the optical cable joints, there will be an outlet hole part and an inlet hole part on the optical cable splice closure. Although the part where the optical cable harness fits with the optical cable splice closure can be sealed by extrusion with rubber, long-term use and long-term extrusion of the sealing rubber part will cause aging and cracks, which will lead to poor waterproof sealing. When the optical cable splice closure is flooded with rainwater, the outlet hole part and the inlet hole part will cause external water bodies to penetrate in. It is difficult to know the two penetration parts in time, and it is also difficult to synchronously fit and limit the waterproofing of the two penetration parts at the same time. This will cause external water bodies to easily penetrate into the optical cable splice closure, resulting in water damage to the wiring part of the optical cable equipment, and the waterproof protection of the optical cable splice closure is relatively poor. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: an optical cable junction box for waterproof intrusion from the outside, comprising a bottom box, a support frame is fixedly connected to one side of the inner wall of the bottom box, a bidirectional screw is rotatably connected to the inside of the support frame, and a synchronous fixed-force waterproof mechanism is provided at one end of the support frame; the synchronous fixed-force waterproof mechanism comprises a micro-reduction motor fixedly arranged at one end of the support frame, and the micro-reduction motor is used to drive the bidirectional screw to rotate, a torque sensor is fixedly installed at one end of the bidirectional screw, and the torque sensor is fixedly connected to the bottom box; the outer wall of the bidirectional screw is threadedly connected to two sleeve blocks, and one side of each sleeve block is fixed A linkage bar is fixedly connected, a concave block is fixedly connected to the lower surface of the linkage bar, two hinge shafts are fixedly installed on the inner wall of the concave block, and the outer wall of each hinge shaft is rotatably connected to a pushing sleeve rod; the inner wall of the pushing sleeve rod is rotatably connected to a linkage shaft at a position away from the hinge shaft, the bottom end of the linkage shaft is fixedly connected to an articulated sleeve block, one side of the articulated sleeve block is provided with a groove sleeve block, and the groove sleeve block is fixedly connected to another linkage shaft; the inner wall of the groove sleeve block is provided with a guide column, both sides of the bottom box are fixedly connected with optical cable sleeves, the bottom end of the articulated sleeve block is provided with a fitting limiting sealing mechanism, and the interior of the optical cable sleeve is provided with a timely waterproof detection component.

[0006] Preferably, the two sleeves are both slidably connected to the support frame, and the two outer wall threads of the bidirectional screw are opposite and symmetrically arranged; the output end of the micro reduction motor is fixedly connected to the bidirectional screw. The hinge sleeve and the groove sleeve are both slidably connected to the guide column, and the guide column is fixedly connected to the bottom box; the vertical cross-section of the guide column is circular, the top of the bottom box is connected to a sealing strip, the top of the sealing strip is bonded to a cover plate, and the internal thread of the cover plate is connected to a plurality of bolts; the plurality of bolts are threadedly connected to the bottom box. A controller is installed on one side of the micro reduction motor, and the controller is fixedly connected to the bottom box.

[0007] When this technology is in use, the micro reduction motor drives the bidirectional screw to rotate, and the bidirectional screw drives the sleeve block to move right under the action of the thread transmission force, and the other sleeve block moves left, the sleeve block drives the linkage bar to move right, the linkage bar drives the concave block to move right, and the other concave block moves left, the two articulated shafts respectively drive one end of the two pushing sleeve rods to move right, the pushing sleeve rod drives the linkage shaft to push, and the other linkage shaft drives the groove sleeve block to push, the distance between the articulated sleeve block and the groove sleeve block becomes larger, and the distance between the articulated sleeve block and the groove sleeve block becomes larger to stretch and move.

[0008] Preferably, the fitting limit sealing mechanism includes a pulling block fixedly arranged at the bottom end of the groove sleeve block; one side of the pulling block is fixedly connected with a wrapping strap, the bottom end of the hinge sleeve block is fixedly connected with a sliding sleeve block, the sliding sleeve block is slidably connected with the wrapping strap, one side of the sliding sleeve block is fixedly connected with two pressing blocks, and both of the pressing blocks are slidably connected with the wrapping strap; the inner wall of the wrapping strap is connected with a rubber sleeve, the rubber sleeve is fixedly connected with the optical cable sleeve, and one end of the rubber sleeve is fixedly connected with a support ring.

[0009] Both sides of the wrapping strap are provided with limiting strips, one end of each limiting strip is fixedly connected with an arc-shaped limiting block, there is a support block on one side of the arc-shaped limiting block, and both of the arc-shaped limiting blocks are fixedly connected with the support block, the upper surface of the support block is fixedly installed with a support sleeve block, and the support sleeve block is fixedly connected with the guiding column; the bottom end of the inner wall of the bottom box and near the middle position is fixedly connected with a connector terminal, a plurality of screws are threadedly connected inside the connector terminal, the vertical cross-sectional shape of the pressing block is arc-shaped, and the two pressing blocks are symmetrically arranged with respect to the wrapping strap; the outer walls of the two pressing blocks are smooth surfaces. The two arc-shaped limiting blocks are symmetrically arranged with respect to the wrapping strap, and the arc-shaped limiting blocks and the limiting strips are both made of stainless steel.

[0010] When in use of the present technology, when the groove sleeve block drives the pulling block to move leftward, the hinge sleeve block drives the sliding sleeve block to move rightward, the pulling block drives the wrapping strap to move leftward, the sliding sleeve block can move rightward and extrude along the outer wall of the wrapping strap, and the wrapping strap fits and binds and seals on the outer wall of the rubber sleeve. The two limiting strips limit the two sides of the wrapping strap, and at the same time the two arc-shaped limiting blocks limit the two sides of the wrapping strap, so that the wrapping strap can bind and extrude the outer wall of the rubber sleeve according to the specified limiting position, and the butt joint optical cable and the rubber sleeve can fit and seal against water. When the torque force value sensed by the torque force sensor is the same as the torque force set by the controller, the micro reduction motor is turned off by the controller.

[0011] Preferably, the timely waterproof detection component includes a sealing sleeve fixedly arranged inside the optical cable sleeve; a butt joint optical cable is arranged inside the sealing sleeve, a collecting hole is opened on one side of the sealing sleeve, there is a limiting ring fixedly connected with the optical cable sleeve on one side of the collecting hole, and a support column is fixedly connected to one side of the limiting ring; one end of the support column is bonded with a partition ring, and the partition ring is fixedly connected with the optical cable sleeve. A diversion pipe is communicated at the bottom end of the collecting hole, the diversion pipe is fixedly communicated with the optical cable sleeve, and the bottom end of the diversion pipe is fixedly communicated with a collecting pipe; an immersion sensor is fixedly communicated with the bottom end of the inner wall of the collecting pipe. The sealing sleeve is made of rubber material, and the vertical cross-sectional shape of the sealing sleeve is circular, and the sealing sleeve is used for extruding and sealing the butt joint optical cable.

[0012] When this technology is in use, after the external rainwater soaks the two cable sleeves, water seepage occurs at the two sealing sleeves. The water will flow from the gap between the sealing sleeve and the docking optical cable to the side of the limit ring. The baffle ring can support the pillar and increase the limit stability of the limit ring. At the same time, the water enters the guide pipe through the collection hole, and then enters the collection pipe through the guide pipe. In this way, the water is collected in the collection pipe and diverted to the position of the immersion sensor by the collection pipe. When the immersion sensor senses water seepage, the micro reduction motor is started through the controller.

[0013] Technical effects and advantages of the present invention:

[0014] 1. The present invention uses a synchronous fixed-force waterproof mechanism, a micro-reduction motor drives the bidirectional screw to rotate, the bidirectional screw rotates inside the support frame, the bidirectional screw drives the sleeve block to move right under the action of the thread transmission force, and the other sleeve block moves left, the linkage bar drives the concave block to move right, and the other concave block moves left, the two hinged shafts respectively drive one end of the two push sleeves to move right, the distance between the hinged sleeve block and the groove sleeve block becomes larger, when the torque value sensed by the torque sensor is the same as the torque set by the controller, the micro-reduction motor is turned off by the controller, so that the penetration parts of the two optical cable sleeves can be synchronously fitted and limited for waterproofing in time, to prevent external water from penetrating into the optical cable joint box, to prevent water from entering the wiring part of the optical cable equipment, and to make the waterproof protection more timely, thereby greatly improving the waterproof protection of the optical cable joint box.

[0015] 2. The present invention uses a fitting limit sealing mechanism. The groove sleeve block drives the pull block to move left, the hinged sleeve block drives the sliding sleeve block to move right, the pull block drives the wrapped drawstring to move left, the wrapped drawstring slides to the left along the inner wall of the sliding sleeve block, the sliding sleeve block drives the two pressure blocks to move right and extrude, the wrapped drawstring is fitted and bound and sealed on the outer wall of the rubber sleeve, the wrapped drawstring is fitted and bound and sealed on the outer wall of the rubber sleeve, the wrapped drawstring can be bound and extruded on the outer wall of the rubber sleeve according to the specified limit position, the butted optical cable and the rubber sleeve can fit together to seal and waterproof, the water seepage parts of the outer walls of the two butted optical cables are promptly and synchronously waterproofed to avoid water ingress and damage to the wiring parts of the optical cable equipment, the waterproof protection is more timely, and the waterproof protection of the optical cable junction box is greatly improved.

[0016] 3. The present invention adopts a timely waterproof detection component. After the external rainwater soaks the two optical cable sleeves, water seepage problems occur at the two sealing sleeve parts. The water body will flow into the side part of the limiting ring from the gap between the sealing sleeve and the butt joint optical cable. The water body enters the diversion pipe through the collecting hole and then enters the collecting pipe through the diversion pipe. In this way, the water body is collected in the collecting pipe and is diverted by the collecting pipe to the position of the immersion sensor, enabling quick awareness of the water seepage problem inside the two optical cable sleeves. Once the water seepage problem is known, the positions of the two optical cable sleeves are quickly waterproofed and blocked from the inside, making the butt joint optical cable and the rubber sleeve closely fit and limit each other. In this way, water ingress and damage at the wiring part of the optical cable equipment are avoided, and the waterproof protection is more timely.

[0017] Due to the mutual influence of the above multiple functions, first, it is quickly known that there is a water seepage problem inside the two optical cable sleeves. Second, the distance between the hinged sleeve block and the groove sleeve block becomes larger. Finally, the pulling block drives the wrapping pull belt to move leftward, and the wrapping pull belt slides leftward along the inner wall of the sliding sleeve block. The wrapping pull belt can constrain and squeeze the outer wall of the rubber sleeve according to the specified limiting position, and synchronously waterproof the water seepage parts on the outer walls of the two butt joint optical cables in a timely manner. In summary, the permeable parts of the two optical cable sleeves and the permeable parts of the two butt joint optical cables are synchronously and closely waterproofed, preventing external water from seeping into the optical cable splice box and avoiding water ingress and damage at the wiring part of the optical cable equipment. The waterproof protection is more timely, greatly improving the waterproof performance of the optical cable splice box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the optical cable splice box with external waterproof intrusion according to the present invention.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the optical cable splice box with external waterproof intrusion according to the present invention.

[0020] Figure 3 It is a schematic diagram of a partial cross-sectional cut at the connection between the bottom box and the support frame according to the present invention.

[0021] Figure 4 According to the present invention Figure 2 The enlarged schematic diagram at position A.

[0022] Figure 5 It is a schematic diagram of the vertical cross-sectional structure of the optical cable splice box with external waterproof intrusion according to the present invention.

[0023] Figure 6 It is a schematic diagram of the main view of the connection between the pulling block and the wrapping pull belt according to the present invention.

[0024] Figure 7 According to the present invention Figure 5 The enlarged schematic diagram at position B.

[0025] Figure 8Schematic diagram of the main view of the vertical cross-section at the connection between the joint terminal and the bottom box of the present invention.

[0026] Figure 9 Schematic diagram of the main view of the truncated vertical cross-section at the connection between the sealing sleeve and the optical cable sleeve of the present invention.

[0027] Figure 10 Schematic diagram of the bottom view at the connection between the immersion liquid sensor and the collecting pipe of the present invention.

[0028] Reference numerals: 1, bottom box; 2, support frame; 3, bidirectional screw; 4, micro reduction motor; 5, torque force sensor; 6, sleeve block; 7, linkage bar; 8, concave block; 9, hinge shaft; 10, push sleeve rod; 11, linkage shaft; 12, hinge sleeve block; 13, groove sleeve block; 14, guide post; 15, optical cable sleeve; 16, sealing strip; 17, cover plate; 18, bolt; 19, controller; 20, pull block; 21, wrapping pull belt; 22, sliding sleeve block; 23, pressing block; 24, support ring; 25, rubber sleeve; 26, limit strip; 27, arc limit block; 28, support block; 29, support sleeve block; 30, joint terminal; 31, screw; 32, sealing sleeve; 33, collecting hole; 34, limit ring; 35, support column; 36, partition ring; 37, diversion pipe; 38, collecting pipe; 39, immersion liquid sensor; 40, butt joint optical cable. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] As shown in the attached Figure 1-10 An optical cable joint box for preventing external water intrusion. A synchronous constant force waterproof mechanism, a fitting limit sealing mechanism, and a timely waterproof detection component are provided on the optical cable joint box for preventing external water intrusion. The settings of each mechanism and component can timely perform synchronous fitting limit waterproofing on the penetration parts of the two optical cable sleeves 15 and the penetration parts of the two butt joint optical cables 40, avoiding external water bodies from penetrating into the optical cable joint box and preventing the wiring parts of the optical cable equipment from being damaged by water ingress. The waterproof protection is more timely, greatly improving the waterproof protection performance of the optical cable joint box. The specific structural settings of each mechanism and component are as follows.

[0031] In this technical solution, as shown in the attached Figure 1-4As shown, a synchronous fixed-force waterproof mechanism is provided at one end of the support frame 2; the synchronous fixed-force waterproof mechanism includes a micro-reduction motor 4 fixedly arranged at one end of the support frame 2, and the micro-reduction motor 4 is used to drive the bidirectional screw 3 to rotate, and a torque sensor 5 is fixedly installed at one end of the bidirectional screw 3, and the torque sensor 5 is fixedly connected to the bottom box 1; the outer wall of the bidirectional screw 3 is threadedly connected to two sleeve blocks 6, one side of each sleeve block 6 is fixedly connected to a linkage bar 7, the lower surface of the linkage bar 7 is fixedly connected to a concave block 8, the inner wall of the concave block 8 is fixedly installed with two hinge shafts 9, and the outer wall of each hinge shaft 9 is rotatably connected to a pushing sleeve rod 10.

[0032] A linkage shaft 11 is rotatably connected to the inner wall of the push sleeve rod 10 and away from the hinge shaft 9. The bottom end of the linkage shaft 11 is fixedly connected to a hinge sleeve block 12. A groove sleeve block 13 is provided on one side of the hinge sleeve block 12. The groove sleeve block 13 is fixedly connected to another linkage shaft 11; a guide column 14 is provided on the inner wall of the groove sleeve block 13, and both sides of the bottom box 1 are fixedly connected with an optical cable sleeve 15. A fitting limit sealing mechanism is provided at the bottom end of the hinge sleeve block 12, and a timely waterproof detection component is provided inside the optical cable sleeve 15.

[0033] In this technical solution, as shown in the attached Figure 1-3 As shown, a sealing strip 16 is connected to the top of the bottom box 1, a cover plate 17 is bonded to the top of the sealing strip 16, and a plurality of bolts 18 are connected to the inner thread of the cover plate 17; the plurality of bolts 18 are all threadedly connected to the bottom box 1, so that the cover plate 17 drives the sealing strip 16 to contact the upper surface of the bottom box 1, and by rotating the plurality of bolts 18, the cover plate 17 and the bottom box 1 can be firmly and tightly connected, thereby completing the cover pressure seal of the bottom box 1.

[0034] A controller 19 is installed on one side of the micro reduction motor 4, and the controller 19 is fixedly connected to the bottom box 1, so that the micro reduction motor 4 can be started by the controller 19, so that the micro reduction motor 4 can drive the bidirectional screw 3 to rotate.

[0035] In this technical solution, as shown in the attached Figure 5-7 As shown, the fitting limiting sealing mechanism includes a pulling block 20 fixedly arranged at the bottom end of the groove sleeve block 13; a wrapping drawstring 21 is fixedly connected to one side of the pulling block 20, and a sliding sleeve block 22 is fixedly connected to the bottom end of the hinged sleeve block 12, and the sliding sleeve block 22 is slidably connected to the wrapping drawstring 21, and two pressing blocks 23 are fixedly connected to one side of the sliding sleeve block 22, and both pressing blocks 23 are slidably connected to the wrapping drawstring 21; a rubber sleeve 25 is connected to the inner wall of the wrapping drawstring 21, and the rubber sleeve 25 is fixedly connected to the optical cable sleeve 15, and a support ring 24 is fixedly connected to one end of the rubber sleeve 25.

[0036] On both sides of the wrapping strap 21, there are provided limiting bars 26. One end of each limiting bar 26 is fixedly connected with an arc-shaped limiting block 27. On one side of the arc-shaped limiting block 27, there is a supporting block 28. Both arc-shaped limiting blocks 27 are fixedly connected with the supporting block 28. On the upper surface of the supporting block 28, a supporting sleeve block 29 is fixedly installed, and the supporting sleeve block 29 is fixedly connected with the guiding column 14; at the bottom end of the inner wall of the bottom box 1 and near the middle position, there is a connector terminal 30 fixedly connected. Inside the connector terminal 30, there are screwed multiple screws 31. The vertical cross-sectional shape of the pressing block 23 is arc-shaped, and the two pressing blocks 23 are symmetrically arranged with respect to the wrapping strap 21; the outer walls of the two pressing blocks 23 are smooth surfaces. The two arc-shaped limiting blocks 27 are symmetrically arranged with respect to the wrapping strap 21, and both the arc-shaped limiting blocks 27 and the limiting bars 26 are made of stainless steel.

[0037] In this technical solution, as shown in the appendix Figure 8-10 As shown, the waterproof detection component in time includes a sealing sleeve 32 fixedly arranged inside the optical cable sleeve 15. Inside the sealing sleeve 32, there is a butt joint optical cable 40. On one side of the sealing sleeve 32, there is a converging hole 33 opened. On one side of the converging hole 33, there is a limiting ring 34 fixedly connected with the optical cable sleeve 15. On one side of the limiting ring 34, there is a pillar 35 fixedly connected; at one end of the pillar 35, there is an adhesive partition ring 36, and the partition ring 36 is fixedly connected with the optical cable sleeve 15. At the bottom end of the converging hole 33, there is a communicating conduit 37, and the communicating conduit 37 is fixedly communicated with the optical cable sleeve 15. At the bottom end of the communicating conduit 37, there is a converging pipe 38 fixedly communicated; at the bottom end of the inner wall of the converging pipe 38, there is an immersion liquid sensor 39 fixedly communicated. The sealing sleeve 32 is made of rubber material, and the vertical cross-sectional shape of the sealing sleeve 32 is circular, and the sealing sleeve 32 is used for squeezing and sealing the butt joint optical cable 40.

[0038] The working principle of the optical cable joint box for preventing external water intrusion of the present invention is as follows:

[0039] Step 1: When the optical cable joint of the optical cable joint box is used, after stripping the two butt joint optical cables 40 with a stripping tool, they are butted on the connector terminal 30. By rotating the screws 31, the screws 31 can fix the two butt joint optical cables 40 on the connector terminal 30. By moving down the cover plate 17, the cover plate 17 drives the sealing strip 16 to contact the upper surface of the bottom box 1. By rotating multiple bolts 18, the cover plate 17 can be firmly and closely connected with the bottom box 1, and the sealing sleeve 32 is squeezed and fitted on the outer wall of the butt joint optical cable 40. The two sealing sleeves 32 can respectively perform sealing and squeezing operations on the inside of the two optical cable sleeves 15.

[0040] Step 2: During timely waterproof detection, when the two cable sheaths 15 are soaked by external rainwater and water seepage occurs at the two sealing sleeves 32 at the same time, water will flow into the side part of the limiting ring 34 from the gap between the sealing sleeve 32 and the butt joint optical cable 40. The limiting ring 34 limits the permeated water. At the same time, the partition ring 36 can support the support column 35, and the support column 35 can support the limiting ring 34, increasing the limiting stability of the limiting ring 34. At the same time, the water enters the diversion pipe 37 through the collection hole 33 and enters the collection pipe 38 through the diversion pipe 37. In this way, the water is collected in the collection pipe 38 and diverted by the collection pipe 38 to the position of the immersion sensor 39. When water seepage occurs inside the two cable sheaths 15, the water is collected by the collection pipe 38 to the position of the immersion sensor 39. When the immersion sensor 39 senses water seepage, the micro reduction motor 4 is started through the controller 19.

[0041] Step 3: During synchronous fixed-force waterproofing, the micro reduction motor 4 drives the bidirectional screw 3 to rotate. The bidirectional screw 3 rotates inside the support frame 2. At the same time, the bidirectional screw 3 drives the sleeve block 6 to move to the right under the action of the thread driving force, and the other sleeve block 6 moves to the left. The sleeve block 6 drives the linkage bar 7 to move to the right, the linkage bar 7 drives the concave block 8 to move to the right, and the other concave block 8 moves to the left. The concave block 8 drives the two hinge shafts 9 to move to the right. The two hinge shafts 9 respectively drive one end of the two push sleeve rods 10 to move to the right. The push sleeve rod 10 drives the linkage shaft 11 to push, and the other linkage shaft 11 drives the groove sleeve block 13 to push. The distance between the hinge sleeve block 12 and the groove sleeve block 13 becomes larger, and the hinge sleeve block 12 and the groove sleeve block 13 slide along the outer wall of the guide post 14. In this way, a stretching movement occurs between the hinge sleeve block 12 and the groove sleeve block 13.

[0042] Step 4. When fitting and limiting for sealing, when the groove sleeve block 13 drives the pull block 20 to move leftward, the hinged sleeve block 12 drives the sliding sleeve block 22 to move rightward, and the sliding sleeve block 22 drives the two pressing blocks 23 to move rightward. In this way, the pull block 20 drives the wrapping pull belt 21 to move leftward, and the wrapping pull belt 21 slides leftward along the inner wall of the sliding sleeve block 22. At the same time, the sliding sleeve block 22 can move rightward and press against the outer wall of the wrapping pull belt 21. In this way, the sliding sleeve block 22 drives the two pressing blocks 23 to move rightward and press, and the wrapping pull belt 21 fits, binds and seals on the outer wall of the rubber sleeve 25. At the same time, the guide post 14 supports the support sleeve block 29, the support sleeve block 29 supports the support block 28, the support block 28 provides a supporting force for the two arc limiting blocks 27, the arc limiting blocks 27 support the limiting strip 26, and the two limiting strips 26 limit the two sides of the wrapping pull belt 21. At the same time, the two arc limiting blocks 27 limit the two sides of the wrapping pull belt 21. In this way, the wrapping pull belt 21 can bind and press the outer wall of the rubber sleeve 25 according to the specified limiting position, so that the rubber sleeve 25 can fit and limit at the outer wall position of the butt joint optical cable 40. In this way, a seal for waterproofing can be achieved by fitting between the butt joint optical cable 40 and the rubber sleeve 25. The torque force of the bidirectional screw 3 is sensed on the torque force sensor 5. When the torque force value sensed by the torque force sensor 5 is the same as the torque force set by the controller 19, the micro reduction motor 4 is turned off by the controller 19. Even if water penetrates into the optical cable sleeve 15, the water can be known in time, so that the waterproof protection effect is better. In this way, after the two butt joint optical cables 40 are installed and butted on the joint terminal 30, they have the function of timely waterproof protection to prevent water from penetrating in.

[0043] Contents not described in detail in the specification belong to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An optical cable splice closure for preventing external water intrusion, comprising a bottom box, wherein one side of the inner wall of the bottom box is fixedly connected with a support frame, and a bidirectional screw is rotatably connected inside the support frame, and is characterized in that: One end of the support frame is provided with a synchronous fixed force waterproof mechanism; The synchronous constant force waterproof mechanism includes a micro-reduction motor fixedly arranged at one end of the support frame, and the micro-reduction motor is used to drive the bidirectional screw to rotate, and a torque sensor is fixedly installed at one end of the bidirectional screw, and the torque sensor is fixedly connected to the bottom box; the outer wall of the bidirectional screw is threadedly connected to two sleeve blocks, one side of each sleeve block is fixedly connected to a linkage bar, the lower surface of the linkage bar is fixedly connected to a concave block, and the inner wall of the concave block is fixedly installed with two hinge shafts, and the outer wall of each hinge shaft is rotatably connected to a pushing sleeve rod; the inner wall of the pushing sleeve rod is rotatably connected to a linkage shaft at a position away from the hinge shaft, and the bottom end of the linkage shaft is fixedly connected to an articulated sleeve block, and a groove sleeve block is provided on one side of the articulated sleeve block, and the groove sleeve block is fixedly connected to another linkage shaft; the inner wall of the groove sleeve block is provided with a guide Toward the column, both sides of the bottom box are fixedly connected with optical cable sleeves, the bottom end of the articulated sleeve block is provided with a fitting limit sealing mechanism, the fitting limit sealing mechanism includes a pulling block fixedly arranged at the bottom end of the groove sleeve block; one side of the pulling block is fixedly connected with a wrapping drawstring, the bottom end of the articulated sleeve block is fixedly connected with a sliding sleeve block, the sliding sleeve block is slidably connected to the wrapping drawstring, one side of the sliding sleeve block is fixedly connected with two pressing blocks, both of which are slidably connected to the wrapping drawstring; the inner wall of the wrapping drawstring is connected with a rubber sleeve, the interior of the optical cable sleeve is provided with a timely waterproof detection component, the timely waterproof detection component includes a sealing sleeve fixedly arranged inside the optical cable sleeve, the interior of the sealing sleeve is provided with a docking optical cable, including a guide pipe, the bottom end of the guide pipe is fixedly connected with a collecting pipe; the bottom end of the inner wall of the collecting pipe is fixedly connected with an immersion sensor.

2. The optical cable splice closure for preventing external water intrusion according to claim 1, wherein: The two sleeve blocks are both slidably connected to the support frame, and the two outer wall threads of the bidirectional screw are opposite and symmetrically arranged; The output end of the micro reduction motor is fixedly connected to the bidirectional screw.

3. The optical cable splice closure for preventing external water intrusion according to claim 1, wherein: The hinged sleeve block and the groove sleeve block are both slidably connected to the guide column, and the guide column is fixedly connected to the bottom box; The vertical cross-section of the guide column is circular.

4. The optical cable splice closure for preventing external water intrusion according to claim 1, wherein: The top of the bottom box is connected with a sealing strip, the top of the sealing strip is bonded with a cover plate, and the inner thread of the cover plate is connected with a plurality of bolts; The plurality of bolts are all threadedly connected to the bottom box.

5. The optical cable splice closure for preventing external water intrusion according to claim 1, wherein: A controller is installed on one side of the micro reduction motor, and the controller is fixedly connected to the bottom box.

6. The optical cable splice closure for preventing external water intrusion according to claim 1, characterized in that: The rubber sleeve is fixedly connected to the optical cable sleeve, and one end of the rubber sleeve is fixedly connected to a support ring; Limiting strips are provided on both sides of the wrapping drawstring, one end of each limiting strip is fixedly connected to an arc-shaped limiting block, one side of the arc-shaped limiting block is provided with a supporting block, the two arc-shaped limiting blocks are fixedly connected to the supporting blocks, a supporting sleeve block is fixedly installed on the upper surface of the supporting block, and the supporting sleeve block is fixedly connected to the guide column; A joint terminal is fixedly connected to the bottom end of the inner wall of the bottom box and near the middle thereof, and a plurality of screws are connected to the inner thread of the joint terminal.

7. The optical cable splice closure for preventing external water intrusion according to claim 1, wherein: The vertical cross-section of the pressing block is in the shape of an arc, and the two pressing blocks are symmetrically arranged about the wrapping drawstring; The outer walls of the two pressing blocks are both smooth surfaces.

8. The optical cable splice closure for preventing external water intrusion according to claim 6, wherein: The two arc-shaped limit blocks are symmetrically arranged with respect to the wrapping strap, and both the arc-shaped limit blocks and the limit strips are made of stainless steel.

9. The optical cable splice closure for preventing external water intrusion according to claim 1, wherein: One side of the sealing sleeve is provided with a collecting hole, one side of the collecting hole is provided with a limit ring fixedly connected to the cable sheath, and one side of the limit ring is fixedly connected with a support column; One end of the support column is bonded with a partition ring, and the partition ring is fixedly connected with the cable sheath. A diversion pipe is communicated at the bottom end of the collecting hole, and the diversion pipe is fixedly communicated with the cable sheath.

10. The optical cable splice closure for preventing external water intrusion according to claim 9, characterized in that: The sealing sleeve is made of rubber material, and the vertical cross-sectional shape of the sealing sleeve is an annular shape. The sealing sleeve is used for squeezing and sealing the butt joint of the optical cable.

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