A portable plug-and-play high-protection optical cable distribution box

Abstract

The application belongs to the technical field of optical cable fiber distribution plug-and-play, in particular to a portable plug-and-play high-protection optical cable fiber distribution box, which comprises an optical cable fiber distribution box, the optical cable fiber distribution box comprises a closed sealing unit, the closed sealing unit comprises an upper box body and an extruded hollow gel strip, a clamping and locking unit is fixedly connected to the outer surface of the optical cable fiber distribution box, the clamping and locking unit comprises an arc-shaped matched clamping plate, a threaded lock unit is arranged on the front surface of the optical cable fiber distribution box, the threaded lock unit comprises a threaded lock, a dust-proof connecting unit is arranged on the outer surface of the threaded lock unit, the dust-proof connecting unit comprises an adapter cavity dustproof cap and a threaded waterproof outer sleeve shell, a butt joint threaded protrusion is movably sleeved at one end of the threaded waterproof outer sleeve shell, a lead-out tail sleeve is fixedly connected to the end surface of the butt joint threaded protrusion, and a rubber sealing ring is movably sleeved at the inner surface of one end of the threaded waterproof outer sleeve shell.

Description

Technical Field

[0001] This invention belongs to the field of optical fiber splitting and plug-and-play technology, specifically a portable, plug-and-play, high-protection optical fiber splitting box. Background Technology

[0002] Fiber optic distribution boxes are distribution and splitting devices for user terminals in FTTH systems, enabling functions such as fiber splicing, distribution, and scheduling. They can also serve as splitting nodes for long-distance fiber optic transmission. Fiber optic distribution boxes are interface devices used outdoors, in corridors, or indoors to connect trunk optical cables and distribution optical cables. Fiber optic distribution boxes must operate reliably under specified conditions, and their enclosures must withstand a vertical pressure not exceeding 500N.

[0003] Chinese patent CN110389415B discloses an optical fiber distribution box, including a box body and a cover that cooperates with and connects to the box body. The optical fiber distribution box proposed in this invention has an upward-opening single-door structure, wider at the top and narrower at the bottom, making it easy to operate. The cover and the upper edge of the box body can also protect against rainwater, and the weight of the cover facilitates closing the door. The interior of the optical fiber distribution box has a rotatable structure, facilitating construction and maintenance. Ordinary optical cables or drop cables can be led out from the bottom of the box, making it highly practical.

[0004] Currently, with the large-scale construction of FTTH networks, the shortcomings of traditional ODN cabling are gradually becoming apparent. These shortcomings include high cost, low efficiency, high maintenance difficulty, and a high user activation failure rate. Furthermore, traditional fiber optic distribution boxes have low protection levels and a lifespan of only 3-5 years, resulting in relatively high maintenance time and difficulty. For ordinary distribution boxes, repeated opening reduces sealing performance, and full-node splicing leads to significant waste of network resources. Professional construction operations require highly skilled personnel, and pole-mounted installation also presents inconveniences. In light of these inconveniences in existing product technologies, the fiber optic distribution box and its supporting components structure proposed in this patent can solve these problems in construction, maintenance, and service activation.

[0005] Therefore, the present invention provides a portable, plug-and-play, high-protection optical fiber distribution box. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a portable plug-and-play high-protection optical fiber distribution box, comprising an optical fiber distribution box, the optical fiber distribution box including a closed sealing unit, the closed sealing unit including an upper box body and a squeezed hollow gel strip, a snap-fit ​​locking unit fixedly connected to the outer surface of the optical fiber distribution box, the snap-fit ​​locking unit including an arc-shaped fitting snap-fit ​​plate, a threaded locking unit provided on the front of the optical fiber distribution box, the threaded locking unit including a threaded locking buckle, a dustproof connection unit provided on the outer surface of the threaded locking unit, the dustproof connection unit including an adapter cavity dustproof cap and a threaded waterproof outer shell.

[0008] Preferably, a threaded protrusion is movably fitted onto one end of the threaded waterproof outer shell, and a lead-out tail sleeve is fixedly connected to one end surface of the threaded protrusion. A rubber sealing ring is movably fitted onto the inner surface of one end of the threaded waterproof outer shell. Anti-pry snowflake-shaped safety screws are provided on one end of the optical cable distribution box and the upper box. When activating the service, the operator first opens the dust cap of the adapter cavity, puts the rubber sealing ring onto the outer surface of the threaded lock, and passes the user-end optical cable through the threaded protrusion, the rubber sealing ring, and the threaded waterproof outer shell in sequence. The user-end optical cable is then headed using a quick connector. The headed optical cable is then rotated and sealed with the optical cable connector on the surface of the optical cable distribution box. The lead-out tail sleeve on the threaded protrusion aligns with the dust cap of the adapter cavity, thereby rotating the threaded waterproof outer shell and fully pressing the rubber sealing ring on one end of the threaded waterproof outer shell onto the box. This allows for plug-and-play activation of the service, avoiding the need for opening the box and splicing as in traditional connection methods.

[0009] Preferably, the adapter cavity dust caps are provided in multiple ways. One end of each of the multiple adapter cavity dust caps is threaded and movably sleeved on the surface of the mating threaded protrusion and the threaded locking buckle. The surface of one end of the adapter cavity dust cap is provided with a recessed connecting groove that movably sleeves on the outer surface of the lead-out tail sleeve. A gel sealing ring is provided on the inner surface of one end of the mating threaded protrusion and the threaded waterproof outer shell. Then, the ring is wrapped and tightened on the surface of the swing flexible plate with magic sealant to increase the sealing performance of the connection between the threaded waterproof outer shell and the threaded locking buckle. This reduces the possibility of rainwater seeping into the interior of the optical fiber distribution box through the gaps at the connection between the threaded waterproof outer shell and the threaded locking buckle. After the service is connected, the upper and lower boxes are merged and locked with an arc-shaped fitting snap plate and anti-pry snowflake-shaped safety screws for subsequent pole installation.

[0010] Preferably, the threaded latch is disposed on the front of the optical fiber distribution box, and an optical fiber connector is disposed on the inner surface of the threaded latch. A fiber coil storage component is detachably installed on the inner wall of the optical fiber distribution box, and a splicing tray is disposed on the top surface of the fiber coil storage component.

[0011] Preferably, the optical fiber distribution box is fixedly connected to the two sides and the back, with one end of the hinged elastic arm fixedly connected to the outer surface of the arc-shaped fitting snap plate. The bottom surface of the optical fiber distribution box is provided with a handle. If pole-mounted installation is required before construction, the construction personnel can open the handle on the back of the box and lift or hang it on their body to carry it to the pole. During construction, the optical cable is stripped and introduced into the main cable through the optical cable fixing device on the internal component, and then fused with the pigtail provided in the splice tray. The other end of the pigtail is connected to the optical fiber connector on one end of the threaded lock. The internal connection is now complete.

[0012] Preferably, an anti-detachment chain is fixedly connected to the back of the fiber optic distribution box. When the fiber optic distribution box needs to be moved, it can be transported by simply holding the handle, making it more convenient for high-altitude transport. The upper box and the fiber optic distribution box are connected by the anti-detachment chain. The anti-detachment chain on the surface of the fiber optic distribution box and the upper box allows the door panel to be fully opened without being limited by the opening angle, and the door panel will not be lost. One end of the anti-detachment chain is fixedly connected to the outer surface of the upper box. A squeezed hollow gel strip is fixedly connected to the outer interface of the upper box, which tightly squeezes the upper box onto the surface of the fiber optic distribution box. The squeezed hollow gel strip deforms during compression, sealing the connection between the upper box and the fiber optic distribution box. In daily use, this reduces the penetration of rainwater into the interior of the fiber optic distribution box, thereby increasing the sealing effect.

[0013] Preferably, the outer surfaces of the upper housing and the fiber optic distribution box are provided with connecting buckles, and the inner surfaces of the connecting buckles are movably fitted to the inner surfaces of the arc-shaped fitting plate. The fiber optic cable head is connected to one end of the fiber optic cable connector, and the upper housing is fitted onto the top surface of the fiber optic distribution box. The fiber optic distribution box and one end of the upper housing are locked together with the anti-pry snowflake-shaped safety screws. The arc-shaped fitting plate on one end of the hinged elastic arm is fitted into the inside of the connecting buckle on the outer surface of the upper housing. The arc-shaped fitting plate and the inside of the connecting buckle are aligned. By tightening the safety screws at the bottom of the three arc-shaped fitting plates, the housing is locked in all directions, achieving high protection performance.

[0014] Preferably, a pull-out sealing unit is also provided on the outer surface of the threaded waterproof outer shell. The pull-out sealing unit includes a high-elasticity wire, a downward pressure limiting sliding collar, and a swing flexible plate. A snap-fit ​​outer collar is detachably installed on the outer surface of the threaded waterproof outer shell. A groove is formed on the outer surface of the snap-fit ​​outer collar. One end of the high-elasticity wire is fixedly connected to the inner surface of the groove, and the other end of the high-elasticity wire is fixedly connected to the bottom surface of the downward pressure limiting sliding collar.

[0015] Preferably, the inner surface of the pressing and limiting sliding sleeve is provided with a protrusion that is movably engaged with the inner wall of the groove, and the outer surface of the pressing and limiting sliding sleeve is fixedly connected with an inclined push arm.

[0016] Preferably, the bottom end of the swing flexible plate is fixedly connected to the top surface of the snap-fit ​​outer ring, and the top end of the inclined push arm is movably overlapped on the outer surface of the swing flexible plate. A magic sealant is provided on the outer surface of the swing flexible plate to pull the downward limiting sliding collar back on the surface of the snap-fit ​​outer ring, thereby releasing the pressure on the back of the swing flexible plate. After connecting the fiber optic connector, the downward limiting sliding collar is released and, in conjunction with the high elasticity wire on the outer surface of the snap-fit ​​outer ring, the bottom surface of the downward limiting sliding collar is pushed upward, thereby causing the inclined push arm on the top surface of the downward limiting sliding collar to press on the back of the swing flexible plate, bringing the swing flexible plate inward towards the center, so that the inner surface of the swing flexible plate is completely attached to the joint surface of the threaded waterproof outer shell and the threaded lock.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The portable plug-and-play high-protection optical fiber distribution box of the present invention connects one end of the optical fiber head to the optical fiber connector, and fits the upper box onto the top surface of the optical fiber distribution box. Anti-pry snowflake-shaped safety screws are used to lock the optical fiber distribution box and one end of the upper box together. An arc-shaped fitting plate on one end of the hinged elastic arm fits into the connecting buckle on the outer surface of the upper box. The arc-shaped fitting plate aligns with the inside of the connecting buckle. Tightening the safety screws at the bottom of the three arc-shaped fitting plates locks the box in all directions, achieving high protection performance. The upper box is tightly pressed against the surface of the optical fiber distribution box. The extrusion of the hollow gel strip deforms during extrusion, sealing the connection between the upper box and the optical fiber distribution box. In daily use, this reduces the penetration of rainwater into the interior of the optical fiber distribution box, thereby increasing the sealing effect.

[0019] 2. The portable plug-and-play high-protection optical fiber distribution box of the present invention, when connecting the optical fiber connector, pulls back the downward limiting sliding collar on the surface of the snap-fit ​​outer collar, thereby releasing the squeezing pressure on the back of the swing flexible plate. After connecting the optical fiber connector, the released downward limiting sliding collar, together with the high-elasticity wire on the outer surface of the snap-fit ​​outer collar, pushes the bottom surface of the downward limiting sliding collar upward, thereby causing the inclined pushing arm on the top surface of the downward limiting sliding collar to squeeze on the back of the swing flexible plate, pushing the swing flexible plate towards the center inward. The flexible board is brought together so that its inner surface is completely flush with the joint between the threaded waterproof outer shell and the threaded lock. Then, magic sealant is applied to the surface of the flexible board and wrapped and tightened to increase the sealing of the joint between the threaded waterproof outer shell and the threaded lock. This reduces the risk of rainwater seeping into the fiber optic distribution box through the gaps at the joint between the threaded waterproof outer shell and the threaded lock. After the service is connected, the upper and lower boxes are merged and locked with arc-shaped fitting plates and anti-pry snowflake-shaped safety screws for subsequent pole installation.

[0020] 3. The portable plug-and-play high-protection optical cable distribution box of the present invention connects the optical fiber end on the surface of the fiber storage component to one end of the optical cable connector. When it is necessary to connect optical fibers later, the dust cap of the adapter cavity is peeled off from the surface of one end of the threaded lock. If pole mounting is required before construction, the construction personnel open the back of the box, hold the handle, and carry it on the pole by hand or hang it on the construction personnel. During construction, the optical cable is stripped and introduced into the main cable through the optical cable fixing device on the internal component, and spliced ​​with the pigtail provided in the splice tray. The other end of the pigtail is connected to the optical cable connector on one end of the threaded lock. The internal connection is completed.

[0021] 4. The portable plug-and-play high-protection optical fiber distribution box of the present invention allows operators to first open the dust cap of the adapter cavity and fit the rubber sealing ring onto the outer surface of the threaded lock during service activation. The user-end optical cable is then passed sequentially through the threaded protrusion, the rubber sealing ring, and the threaded waterproof outer shell. A quick connector is used to attach the end cap to the user-end optical cable. The attached optical cable is then rotated and sealed with the optical fiber connector on the surface of the distribution box. The lead-out tail sleeve on the threaded protrusion aligns with the dust cap of the adapter cavity, thereby rotating the threaded waterproof outer shell and fully pressing the rubber sealing ring on one end of the threaded waterproof outer shell against the box. This achieves plug-and-play functionality during service activation, avoiding the need for opening the box and splicing required in traditional connection methods.

[0022] 5. The portable plug-and-play high-protection optical fiber distribution box of the present invention allows for easy transport by simply holding the handle when the optical fiber distribution box needs to be moved, making it more convenient for high-altitude transport. Furthermore, the upper box and the optical fiber distribution box are connected by an anti-detachment chain. The anti-detachment chain on the surface of the optical fiber distribution box and the upper box allows the door to be fully opened without being limited by the opening angle, and the door panel will not be lost. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a schematic diagram of the unfolded three-dimensional structure of the optical cable distribution box of the present invention;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the optical fiber distribution box as shown on the side of the present invention;

[0027] Figure 4 This is a schematic diagram of the front unfolded three-dimensional structure of the optical fiber distribution box in this invention;

[0028] Figure 5 This is a schematic diagram of the multi-angle unfolded three-dimensional structure of the threaded waterproof outer shell in this invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the threaded waterproof outer shell used in this invention;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the threaded waterproof outer shell pulled back in this invention;

[0031] Figure 8 This is a front three-dimensional structural diagram of the optical fiber distribution box in this invention;

[0032] Figure 9 This is a schematic diagram of the three-dimensional structure of the upper box in this invention;

[0033] Figure 10 This is a schematic diagram of the three-dimensional structure of the upper box as viewed from the front in this invention.

[0034] In the diagram: 11. Fiber optic distribution box; 12. Hinged elastic arm; 13. Arc-shaped fitting snap-fit ​​plate; 14. Fiber coil storage internal components; 15. Fusion splice tray; 16. Threaded lock; 17. Fiber optic connector; 18. Adapter cavity dust cap;

[0035] 19. Threaded waterproof outer shell; a1. Snap-fit ​​outer ring; a2. High-elasticity thread; a3. Downward limiting sliding ring; a4. Angled push arm; a5. Swinging flexible plate; a6. Magic sealant;

[0036] 110. Rubber sealing ring; 111. Butt threaded protrusion; 112. Lead-out tail sleeve; 113. Recessed connecting groove; 114. Gel sealing ring; 115. Anti-chain slippage; 116. Upper housing; 117. Extruded hollow gel strip; 118. Connecting buckle; 119. Hand grip; 120. Anti-pry snowflake safety screw. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] Example 1

[0039] like Figures 1 to 10As shown in the figure, a portable plug-and-play high-protection optical fiber distribution box according to an embodiment of the present invention includes an optical fiber distribution box 11. The optical fiber distribution box 11 includes a closing and sealing unit, which includes an upper box body 116 and a squeezed hollow gel strip 117. A snap-fit ​​locking unit is fixedly connected to the outer surface of the optical fiber distribution box 11. The snap-fit ​​locking unit includes an arc-shaped fitting snap-fit ​​plate 13. A threaded locking unit is provided on the front of the optical fiber distribution box 11. The threaded locking unit includes a threaded lock 16. A dustproof connection unit is provided on the outer surface of the threaded locking unit. The dustproof connection unit includes an adapter cavity dustproof cap 18 and a threaded waterproof outer shell 19. A mating threaded protrusion 111 is movably sleeved on one end of the threaded waterproof outer shell 19. One end of the fiber optic cable distribution box 11 has a fixedly connected lead-out tail sleeve 112. A rubber sealing ring 110 is movably fitted onto the inner surface of one end of the threaded waterproof outer shell 19. Anti-pry snowflake-shaped safety screws 120 are provided on one end of the fiber optic cable distribution box 11 and the upper box 116. Multiple adapter cavity dust caps 18 are provided, with one end of each dust cap 18 threadedly fitted onto the surface of the mating threaded protrusion 111 and the threaded locking buckle 16. A recessed connecting groove 113 is provided on one end of the adapter cavity dust cap 18, which movably fits onto the outer surface of the lead-out tail sleeve 112. A gel sealing ring 114 is provided on the inner surface of the mating threaded protrusion 111 and the threaded waterproof outer shell 19. The threaded locking buckle 16 is located on the fiber optic cable distribution box. On the front of the fiber optic distribution box 11, and on the inner surface of the threaded locking buckle 16, there is a fiber optic connector 17. A fiber coil storage component 14 is detachably installed on the inner wall of the fiber optic distribution box 11. A splicing tray 15 is provided on the top surface of the fiber coil storage component 14. Hinged elastic arms 12 are fixedly connected to both sides and the back of the fiber optic distribution box 11. One end of the hinged elastic arm 12 is fixedly connected to the outer surface of the arc-shaped fitting snap plate 13. A handle 119 is provided on the bottom surface of the fiber optic distribution box 11. An anti-derailment chain 115 is fixedly connected to the back of the fiber optic distribution box 11, and one end of the anti-derailment chain 115 is fixedly connected to the outer surface of the upper box 116. A squeezed hollow gel strip 117 is fixedly connected to the outer interface of the upper box 116. Connecting buckles 118 are provided on the outer surfaces of the upper housing 116 and the optical cable distribution box 11. The inner surface of the connecting buckle 118 is movably attached to the inner surface of the arc-shaped fitting plate 13 to connect the optical fiber head to one end of the optical cable connector 17. The upper housing 116 is fitted onto the top surface of the optical cable distribution box 11. The optical cable distribution box 11 and one end of the upper housing 116 are locked together with the anti-pry snowflake-shaped safety screw 120. The arc-shaped fitting plate 13 on one end of the hinged elastic arm 12 is fitted into the inside of the connecting buckle 118 on the outer surface of the upper housing 116. The arc-shaped fitting plate 13 and the inside of the connecting buckle 118 are aligned. The safety screws at the bottom of the three arc-shaped fitting plates 13 are tightened.The all-around locking mechanism provides high protection by tightly pressing the upper housing 116 against the surface of the fiber optic distribution box 11. The hollow gel strip 117 deforms during compression, sealing the connection between the upper housing 116 and the fiber optic distribution box 11. This reduces rainwater penetration into the fiber optic distribution box 11 during daily use, enhancing its sealing performance. When the fiber optic distribution box 11 needs to be moved, it can be transported simply by holding the handle 119. This design also facilitates handling at heights. It is more convenient, and the upper box 116 and the fiber optic distribution box 11 are connected by an anti-detachment chain 115. The anti-detachment chain 115 on the surface of the fiber optic distribution box 11 and the upper box 116 can fully open the door panel without being limited by the opening angle, and without losing the door panel effect. Connect the fiber optic cable end on the surface of the fiber storage component 14 to one end of the fiber optic connector 17. When it is necessary to connect the fiber optic cable later, peel off the dust cap 18 of the adapter cavity from one end of the threaded lock 16. If pole mounting is required before construction, the construction personnel can open the back of the box. Using handle 119, lift the cable by hand or hang it on the worker to carry it up the pole. During operation, strip the optical cable through the optical cable fixing device on the internal component and introduce it into the main cable. Then, splice it with the pigtail provided in the splice tray 15. Connect the other end of the pigtail to the optical cable connector 17 on one end of the threaded locking buckle 16. The internal connection is now complete. When activating the service, the operator first opens the dust cap 18 of the adapter cavity, puts the rubber sealing ring 110 on the outer surface of the threaded locking buckle 16, and then passes the user-end optical cable through the mating threaded protrusion 111 in sequence. The rubber sealing ring 110 and the threaded waterproof outer shell 19 are used to attach a connector to the user-end optical cable. The attached optical cable is then rotated and sealed to the optical fiber connector 17 on the surface of the optical cable distribution box 11. The lead-out tail sleeve 112 on the threaded protrusion 111 aligns with the dust cap 18 of the adapter cavity, thereby rotating the threaded waterproof outer shell 19 and fully pressing the rubber sealing ring 110 at one end of the threaded waterproof outer shell 19 against the box. This enables plug-and-play functionality during service activation, avoiding the need for opening the box and splicing required in traditional connection methods.

[0040] Example 2

[0041] like Figures 1 to 10As shown, in another embodiment of the present invention, a pull-out sealing unit is further provided on the outer surface of the threaded waterproof outer shell 19. The pull-out sealing unit includes a high-elasticity wire a2, a downward pressure limiting sliding collar a3, and a swinging flexible plate a5. A snap-fit ​​outer collar a1 is detachably installed on the outer surface of the threaded waterproof outer shell 19. A groove is formed on the outer surface of the snap-fit ​​outer collar a1. One end of the high-elasticity wire a2 is fixedly connected to the inner surface of the groove, and the other end of the high-elasticity wire a2 is fixedly connected to the bottom surface of the downward pressure limiting sliding collar a3. The inner surface of the downward limiting sliding collar a3 is provided with a protrusion that can be movably engaged with the inner wall of the groove. An inclined pushing arm a4 is fixedly connected to the outer surface of the downward limiting sliding collar a3. The bottom end of the swinging flexible plate a5 is fixedly connected to the top surface of the engaging outer collar a1, and the top end of the inclined pushing arm a4 movably overlaps the outer surface of the swinging flexible plate a5. A magic sealant a6 is provided on the outer surface of the swinging flexible plate a5. When connecting the fiber optic connector, the downward limiting sliding collar a3 is pressed against the surface of the engaging outer collar a1. Pull back to release the pressure on the back of the swing flexible plate a5. After connecting the fiber optic connector, release the high-elasticity wire a2 on the outer surface of the locking outer ring a1 to push the bottom surface of the lower limiting sliding ring a3 upward. This causes the inclined push arm a4 on the top surface of the lower limiting sliding ring a3 to press against the back of the swing flexible plate a5, pulling the swing flexible plate a5 inward towards the center, so that the inner surface of the swing flexible plate a5 is completely attached to the threaded waterproof outer shell 1. On the surface of the connection between the threaded waterproof outer shell 19 and the threaded lock 16, the magic sealant a6 is wrapped and tightened on the surface of the swing flexible plate a5 to increase the sealing of the connection between the threaded waterproof outer shell 19 and the threaded lock 16. This reduces the possibility of rainwater seeping into the interior of the optical fiber distribution box 11 through the gap at the connection between the threaded waterproof outer shell 19 and the threaded lock 16. After the service is connected, the upper and lower boxes are merged and locked with the arc-shaped fitting snap plate 13 and the anti-pry snowflake-shaped safety screw 120 for subsequent pole installation.

[0042] Working principle: Connect one end of the fiber optic cable connector 17 to the fiber optic cable connector 17. Slide the upper housing 116 onto the top surface of the fiber optic cable distribution box 11. Lock the fiber optic cable distribution box 11 and one end of the upper housing 116 together with the anti-pry snowflake-shaped safety screw 120. The arc-shaped fitting plate 13 on one end of the hinged elastic arm 12 is fitted into the connecting buckle 118 on the outer surface of the upper housing 116. The arc-shaped fitting plate 13 fits into the connecting buckle 118. The connection is made by tightening the safety screws at the bottom of the three arc-shaped fitting clip plates 13 to lock the box in all directions, achieving high protection performance. The upper box 116 is tightly pressed onto the surface of the optical fiber distribution box 11. In conjunction with the extrusion of the hollow gel strip 117, it deforms during the extrusion process to seal the connection between the upper box 116 and the optical fiber distribution box 11. In daily use, this reduces the penetration of external rainwater into the interior of the optical fiber distribution box 11, thereby increasing the sealing effect.

[0043] When it is necessary to move the fiber optic distribution box 11, you only need to hold the handle 119 to transport the fiber optic distribution box 11. This makes it more convenient to move it to a high place. The upper box 116 and the fiber optic distribution box 11 are connected by an anti-detachment chain 115. The anti-detachment chain 115 on the surface of the fiber optic distribution box 11 and the upper box 116 can fully open the door without being limited by the opening angle and without losing the door.

[0044] Connect the fiber optic cable end on the surface of the fiber storage component 14 to one end of the fiber optic cable connector 17. When it is necessary to connect the fiber optic cable later, peel off the dust cap 18 of the adapter cavity from one end of the threaded lock 16. If pole mounting is required before construction, the construction personnel can open the back of the box, hold the handle 119, and carry it up the pole by hand or hang it on the construction personnel. During construction, the optical cable is stripped and introduced into the main cable through the optical cable fixing device on the internal component, and fused with the pigtail provided in the splice tray 15. The other end of the pigtail is connected to the fiber optic cable connector 17 on one end of the threaded lock 16. The internal connection is now complete.

[0045] When activating the service, the operator first opens the dust cap 18 of the adapter cavity, puts the rubber sealing ring 110 onto the outer surface of the threaded lock 16, and passes the user-end optical cable through the threaded protrusion 111, the rubber sealing ring 110 and the threaded waterproof outer shell 19 in sequence. The user-end optical cable is then headed using a quick connector. The headed optical cable is then rotated and sealed with the optical fiber connector 17 on the surface of the optical fiber distribution box 11. The lead-out tail sleeve 112 on the threaded protrusion 111 is connected to the dust cap 18 of the adapter cavity, thereby rotating the threaded waterproof outer shell 19 and fully pressing the rubber sealing ring 110 on one end of the threaded waterproof outer shell 19 onto the box. This allows for plug-and-play activation of the service, avoiding the need for opening the box and splicing in traditional connection methods.

[0046] When connecting the fiber optic connector, the downward limiting sliding collar a3 is pulled back on the surface of the snap-fit ​​outer collar a1, thereby releasing the pressure on the back of the swing flexible plate a5. After connecting the fiber optic connector, the downward limiting sliding collar a3 is released, and the high-elasticity wire a2 on the outer surface of the snap-fit ​​outer collar a1 pushes the bottom surface of the downward limiting sliding collar a3 upward, causing the inclined push arm a4 on the top surface of the downward limiting sliding collar a3 to press against the back of the swing flexible plate a5, pulling the swing flexible plate a5 inward towards the center, so that the inner side of the swing flexible plate a5... The surface is completely adhered to the joint surface of the threaded waterproof outer shell 19 and the threaded lock 16. Then, the magic sealant a6 is wrapped and tightened on the surface of the swing flexible plate a5 to increase the sealing of the joint between the threaded waterproof outer shell 19 and the threaded lock 16. This reduces the possibility of rainwater seeping into the interior of the optical fiber distribution box 11 through the gap at the joint between the threaded waterproof outer shell 19 and the threaded lock 16. After the service is connected, the upper and lower boxes are merged and locked with the arc-shaped fitting clip plate 13 and the anti-pry snowflake-shaped safety screw 120 for subsequent pole installation.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable, plug-and-play, high-protection optical fiber distribution box, characterized in that: The optical fiber distribution box (11) includes a closed sealing unit, which includes an upper box body (116) and a squeezed hollow gel strip (117). A snap-fit ​​locking unit is fixedly connected to the outer surface of the optical fiber distribution box (11), which includes an arc-shaped fitting snap-fit ​​plate (13). A threaded locking unit is provided on the front of the optical fiber distribution box (11), which includes a threaded locking buckle (16). A dustproof connection unit is provided on the outer surface of the threaded locking unit, which includes an adapter cavity dustproof cap (18) and a threaded waterproof outer shell (19). The outer surface of the threaded waterproof outer shell (19) is also provided with a pull-out sealing unit. The pull-out sealing unit includes a high-elasticity wire (a2), a downward pressure limiting sliding collar (a3), and a swing soft plate (a5). A snap-fit ​​outer collar (a1) is detachably installed on the outer surface of the threaded waterproof outer shell (19). The inner surface of the downward limiting sliding collar (a3) ​​is provided with a protrusion that is movably engaged with the inner wall of the groove. The outer surface of the downward limiting sliding collar (a3) ​​is fixedly connected with a slanting push arm (a4). The bottom end of the swinging flexible plate (a5) is fixedly connected to the top surface of the engaging outer collar (a1), and the top end of the slanting push arm (a4) is movably engaged with the outer surface of the swinging flexible plate (a5). The outer surface of the swinging flexible plate (a5) is provided with a magic sealing adhesive (a6).

2. As described in claim 1, characterized in that: A threaded protrusion (111) is movably sleeved on one end of the threaded waterproof outer shell (19). A lead-out tail sleeve (112) is fixedly connected to one end surface of the threaded protrusion (111). A rubber sealing ring (110) is movably sleeved on the inner surface of one end of the threaded waterproof outer shell (19). Anti-pry snowflake-shaped safety screws (120) are provided on one end of the optical fiber distribution box (11) and the upper box (116).

3. As described in claim 1, characterized in that: The adapter cavity dust cap (18) is provided in multiple ways. One end of each adapter cavity dust cap (18) is threaded and movably sleeved on one end surface of the mating threaded protrusion (111) and the threaded lock (16). A recessed connecting groove (113) is provided on one end surface of the adapter cavity dust cap (18) and movably sleeved on the outer surface of the lead-out tail sleeve (112). A gel sealing ring (114) is provided on the inner side surface of one end of the mating threaded protrusion (111) and the threaded waterproof outer shell (19).

4. As described in claim 1, characterized in that: The threaded latch (16) is located on the front of the optical fiber distribution box (11), and an optical fiber connector (17) is provided on the inner surface of the threaded latch (16). A fiber coil storage component (14) is detachably installed on the inner wall of the optical fiber distribution box (11), and a fusion splice plate (15) is provided on the top surface of the fiber coil storage component (14).

5. As described in claim 1, characterized in that: The optical fiber distribution box (11) is fixedly connected to the two sides and the back side with hinged elastic arms (12). One end of the hinged elastic arm (12) is fixedly connected to the outer surface of the arc-shaped fitting snap plate (13). A hand handle (119) is provided on the bottom surface of the optical fiber distribution box (11).

6. As described in claim 1, characterized in that: An anti-detachment chain (115) is fixedly connected to the back of the optical fiber distribution box (11), and one end of the anti-detachment chain (115) is fixedly connected to the outer surface of the upper box (116). A squeezed hollow gel strip (117) is fixedly connected to the outer interface of the upper box (116). A connecting buckle (118) is provided on the outer surface of the upper box (116) and the optical fiber distribution box (11), and the inner surface of the connecting buckle (118) is movably attached to the inner surface of the arc-shaped bonding buckle plate (13).

7. As described in claim 1, characterized in that: Connecting buckles (118) are provided on the outer surfaces of the upper box (116) and the optical fiber distribution box (11), and the inner surface of the connecting buckle (118) is movably attached to the inner surface of the arc-shaped fitting plate (13).

8. As described in claim 1, characterized in that: A groove is provided on the outer surface of the snap-fit ​​outer ring (a1), one end of the high elastic wire (a2) is fixedly connected to the inner surface of the groove, and the other end of the high elastic wire (a2) is fixedly connected to the bottom surface of the pressure limiting sliding ring (a3).

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