A horizontal optical cable junction box with a water-proof structure

Abstract

This utility model relates to the field of booster pump technology and discloses a horizontal optical cable junction box with a water-proof structure. It includes an optical cable box, with multiple connector tubes fixedly connected to both ends. A fixed shaft is fixedly connected to the outside of each connector tube, and a spring is sleeved on the outside of each tube. A retaining shaft is slidably connected to the outside of each connector tube, and multiple retaining balls are engaged inside each connector tube. A connecting tube is slidably connected inside the connector tube, and multiple retaining blocks are fixedly connected to the outside of the connecting tube. Multiple retaining grooves are formed inside the connector tube, and a ball-tube groove is formed on the outside of the connecting tube. In this utility model, the engagement of the connector tube and the connecting tube of the horizontal optical cable junction box involves three steps: during unlocking, the retaining shaft slides to free the retaining balls; during insertion, the retaining tube retaining blocks rotate along the retaining grooves of the connector tube to engage and position; during locking, the spring rebounds and pushes the retaining shaft to compress the retaining balls into the ball-tube groove, forming a three-dimensional lock, which, together with the sealing component, achieves double protection.

Description

Technical Field

[0001] This utility model relates to the field of booster pump technology, and in particular to a horizontal optical cable junction box with a water-proof structure. Background Technology

[0002] In optical communication networks, horizontal fiber optic splice closures are core equipment for ensuring the quality of fiber optic cable splices. The reliability of the engagement between the splice tube and the connecting tube, as well as its water-proof performance, directly determines the stability of communication. Existing splice closure docking structures have significant defects: the engagement operation relies on screw tightening or a single snap-fit, which is prone to circumferential misalignment and axial interference, resulting in low installation efficiency; the locking relies on constraint in only one direction, which is prone to loosening in vibrating environments such as railways and highways, leading to seal failure.

[0003] Furthermore, poor sealing and locking coordination leads to changes in the sealing gap due to deformation of the locking mechanism. Thermal expansion and contraction under varying temperatures further exacerbates the degradation of waterproof performance, making it difficult to meet protection requirements. Additionally, uncontrolled insertion depth of the connector can damage the welding unit, and repeated disassembly and reassembly cause wear on the locking components, reducing locking force and shortening equipment lifespan. Therefore, a horizontal optical cable junction box with a waterproof structure is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a horizontal optical cable junction box with a water-proof structure, which aims to improve the problem that the locking, clamping and sealing functions cannot work together in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A horizontal optical cable junction box with a water-proof structure includes an optical cable box, with multiple connector tubes fixedly connected to both ends of the optical cable box. A fixed shaft is fixedly connected to the outside of each connector tube, a spring is sleeved on the outside of each connector tube, a retaining shaft is slidably connected to the outside of each connector tube, multiple retaining balls are engaged inside each connector tube, a connecting tube is slidably connected inside each connector tube, multiple retaining blocks are fixedly connected to the outside of the connecting tube, multiple retaining grooves are opened inside each connector tube, a ball tube groove is opened outside the connecting tube, and a sealing component for water-proofing is rotatably connected to the outside of the fixed shaft.

[0007] As a further description of the above technical solution:

[0008] The sealing assembly includes a rotating cylinder, the interior of which is rotatably connected to the exterior of the fixed shaft. Multiple telescopic shafts are fixedly connected inside the rotating cylinder, and springs are sleeved on the exterior of each of the multiple telescopic shafts. One end of each of the multiple telescopic shafts is fixedly connected to the same waterproof ring.

[0009] As a further description of the above technical solution:

[0010] One end of the spring is fixedly connected to the inside of the fixed shaft, and the other end of the spring is fixedly connected to the inside of the retaining shaft. The spring provides elastic force to the retaining shaft.

[0011] As a further description of the above technical solution:

[0012] Multiple ball bearings move freely within the same connector tube, and when compressed by the ball bearing shaft, they secure the sliding connecting tube inside.

[0013] As a further description of the above technical solution:

[0014] Multiple ball-locking devices are engaged inside the ball tube groove and are pressed by the fixed shaft to engage with the ball tube groove.

[0015] As a further description of the above technical solution:

[0016] The outer shape of the retaining shaft and the fixed shaft is spiral-shaped, and the inner shape of the rotating cylinder is spiral-shaped.

[0017] As a further description of the above technical solution:

[0018] One end of the waterproof ring is fitted to the connecting pipe, thereby providing waterproofing;

[0019] As a further description of the above technical solution:

[0020] The multiple telescopic shafts and the second spring provide waterproof compressive force to the waterproof ring.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the connection between the connector tube and the connecting tube of the horizontal optical cable junction box is divided into three steps: when unlocking, the locking shaft slides to allow the locking ball to move freely; when inserting, the connecting tube locking block rotates along the connector tube locking groove to lock and position; when locking, the spring rebounds and pushes the locking shaft to squeeze the locking ball into the ball tube groove, forming a three-dimensional lock, which, together with the sealing component, achieves double protection.

[0023] 2. In this utility model, the working principle of the sealing component is as follows: initially, the telescopic shaft and spring are relaxed, and the waterproof ring and the connecting pipe are left with a gap for easy insertion; after the connecting pipe is engaged, the rotating cylinder is rotated, the spiral structure pushes the telescopic shaft inward, and the spring is compressed to make the waterproof ring fit and fill the gap, and the spring maintains pressure; when disassembling, the reverse is reversed, the spring rebounds and resets, and forms double protection with the mechanical lock. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a horizontal optical cable junction box with a water-proof structure proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the connector tube of a horizontal optical cable junction box with a water-proof structure proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the retaining shaft of a horizontal optical cable junction box with a water-proof structure proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the connecting pipe of a horizontal optical cable junction box with a water-proof structure proposed in this utility model.

[0028] Legend:

[0029] 1. Optical cable box; 2. Connector tube; 3. Fixed shaft; 4. Spring 1; 5. Clip shaft; 6. Ball clip; 7. Connecting tube; 8. Clip block; 9. Clip groove; 10. Ball tube groove; 11. Telescopic shaft; 12. Spring 2; 13. Waterproof ring; 14. Rotating cylinder. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1 to 4 This utility model provides an embodiment of a horizontal optical cable junction box with a water-proof structure, including an optical cable box 1. The optical cable box 1 serves as the structural support and protective shell for all components. Multiple connector tubes 2 are fixedly connected to both ends of the optical cable box 1. The connector tubes 2 serve as the core carrier for mechanical locking and sealing. A fixing shaft 3 is fixedly connected to the outside of each connector tube 2. The fixing shaft 3 is annularly fixed to the outer wall of the connector tube 2 and has a spiral pattern. A spring 4 is sleeved on the outside of each connector tube 2. The spring 4 is used to achieve reset through compression and energy storage when unlocking. The head tube 2 is externally slidably connected to a retaining shaft 5, which is designed as a sliding drive component. One end of a spring 4 is fixedly connected to the inside of a fixed shaft 3, and the other end of a spring 4 is fixedly connected to the inside of a retaining shaft 5. The spring 4 provides elastic force to the retaining shaft 5. Multiple retaining balls 6 are engaged internally in the connector tube 2, which is designed as an engaging and locking structure. A connecting tube 7 is slidably connected internally in the connector tube 2, which is designed as a mechanical connector. Multiple retaining balls 6 move freely in the same connector tube 2, and when squeezed by the retaining shaft 5, they fix the internally sliding connecting tube 7.

[0032] The external fixed connection of the connecting pipe 7 has multiple locking blocks 8. The locking blocks 8 are designed to form a circumferential constraint to prevent the connecting pipe 7 from rotating relative to the connector pipe 2. The connector pipe 2 has multiple locking grooves 9 inside. The locking grooves 9 are designed as spiral stepped grooves on the inner wall of the connector pipe 2. They engage with the locking blocks 8 to achieve a dual function: guiding the insertion of the connecting pipe 7 and limiting the insertion depth through stepped limiting. The external connection of the connecting pipe 7 has a ball tube groove 10. The ball tube groove 10 is designed as an annular groove on the outer wall of the connecting pipe 7. It matches the spherical surface of the locking ball 6. After the locking ball 6 is embedded, it forms an axial mechanical lock. Together with the locking blocks 8, it achieves a dual fixation of "anti-rotation + anti-dislodgement". Multiple locking balls 6 are engaged and connected inside the ball tube groove 10. They are squeezed by the fixed shaft 3 and engaged with the ball tube groove 10. The fixed shaft 3 is externally rotatably connected to a sealing component for preventing water leakage.

[0033] Reference Figures 2 to 4 The sealing assembly includes a rotating cylinder 14, which is designed to be rotatably connected to the fixed shaft 3 as the inner wall, and transmits external force through rotation. The outer shape of the retaining shaft 5 and the fixed shaft 3 is spiral-shaped, and the inner shape of the rotating cylinder 14 is spiral-shaped. The inside of the rotating cylinder 14 is rotatably connected to the outside of the fixed shaft 3. Multiple telescopic shafts 11 are fixedly connected inside the rotating cylinder 14. The telescopic shafts 11 are designed to be force transmission mediators and guides. Springs 12 are sleeved on the outside of the multiple telescopic shafts 11. The springs 12 are designed to be elastic compensation elements and are sleeved on the outside of the telescopic shafts 11.

[0034] Multiple telescopic shafts 11 are fixedly connected to the same waterproof ring 13 at one end. The waterproof ring 13 is designed as a terminal sealing actuator and is made of highly elastic silicone. It fits tightly against the outer wall of the connecting pipe 7 through the thrust of the telescopic shafts 11. The deformation properties of the silicone fill the radial gap between the connector pipe 2 and the connecting pipe 7. One end of the waterproof ring 13 fits against the connecting pipe 7, thus waterproofing. The multiple telescopic shafts 11 and the second spring 12 provide waterproof compressive force to the waterproof ring 13.

[0035] Working Principle: The engagement of the connector tube 2 and the connecting tube 7 in the horizontal optical cable junction box follows a dynamic process of "unlocking → insertion → locking": In the initial state, the locking shaft 5 is held against the outside of the connector tube 2 by the elastic force of the spring-4, and multiple locking balls 6 are distributed in a ring array in the radial cavity of the connector tube 2, maintaining a free movement state. Manually driving the locking shaft 5 to slide along the spiral groove of the fixed shaft 3 into the connector tube 2, simultaneously compressing the spring-4 to store energy, the locking balls 6 are then freed from radial compression, making room for the insertion of the connecting tube 7. When the connecting tube 7 is inserted axially, its external locking block 8 is precisely aligned with the locking groove 9 of the connector tube 2—the locking groove 9 adopts a spiral stepped structure, which has both guiding and anti-rotation functions: the locking block 8 slides and rotates along the locking groove 9 to engage, on the one hand preventing circumferential misalignment of the connecting tube 7 through engagement, and on the other hand controlling the insertion depth through the stepped limit, so that the ball tube groove 10 of the connecting tube 7 and the locking balls 6 achieve radial precision alignment. After the release of the retaining shaft 5, the rebound force of the spring 4 pushes the retaining shaft 5 back into position along the spiral groove, while its inner wall simultaneously squeezes the retaining ball 6. The retaining ball 6 is pushed radially towards the center and embeds into the hemispherical recess of the tube groove 10, converting the axial elastic force of the retaining shaft 5 into the radial locking force of the connecting tube 7, completely preventing its axial disengagement. Finally, the point contact engagement of the retaining ball 6 and the surface contact constraint of the retaining block 8 work together to construct a three-dimensional locking system that prevents circumferential rotation, axial disengagement, and radial swaying. Together with the subsequent sealing components, this provides a double guarantee of "mechanical locking + waterproof sealing" for the optical cable connection, making it suitable for complex vibration environments such as railways and highways.

[0036] The working principle of the sealing assembly revolves around "pre-reserved gap → rotational compression → elastic compensation → convenient release": In the initial state, the multiple sets of telescopic shafts 11 and springs 12 inside the rotating cylinder 14 are in a relaxed state, and the waterproof ring 13 maintains a gap with the connecting pipe 7, facilitating the insertion of the connecting pipe 7. After the connecting pipe 7 is engaged, rotating the rotating cylinder 14 causes the spiral shape inside the rotating cylinder 14 to match the threads on the outside of the fixed shaft 3 and the locking shaft 5, thus completing the spiral connection. The spiral structure on its inner wall pushes the telescopic shaft 11 radially inward, compressing the springs 12 and causing the waterproof ring 13 to adhere to the outer wall of the connecting pipe 7. The silicone material fills the gap through deformation. Springs 12 continuously provide pressure to maintain sealing stability. During disassembly, rotating the rotating cylinder 14 in the opposite direction causes the springs 12 to spring back, resetting the telescopic shafts 11 and separating the waterproof ring 13 from the connecting pipe 7. This balances sealing reliability and maintenance convenience, and forms a double waterproof guarantee with the mechanical locking of the locking ball 6.

[0037] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A horizontal optical cable junction box with a water-proof structure, comprising an optical cable box (1), characterized in that: Multiple connector tubes (2) are fixedly connected to both ends of the optical cable box (1). A fixed shaft (3) is fixedly connected to the outside of the connector tube (2). A spring (4) is sleeved on the outside of the connector tube (2). A locking shaft (5) is slidably connected to the outside of the connector tube (2). Multiple locking balls (6) are locked inside the connector tube (2). A connecting tube (7) is slidably connected inside the connector tube (2). Multiple locking blocks (8) are fixedly connected to the outside of the connecting tube (7). Multiple locking grooves (9) are opened inside the connector tube (2). A ball tube groove (10) is opened on the outside of the connecting tube (7). A sealing component for preventing water seepage is rotatably connected to the outside of the fixed shaft (3).

2. A horizontal optical cable junction box with a water-proof structure according to claim 1, characterized in that: The sealing assembly includes a rotating cylinder (14), the interior of which is rotatably connected to the exterior of the fixed shaft (3). Multiple telescopic shafts (11) are fixedly connected inside the rotating cylinder (14), and springs (12) are sleeved on the exterior of each of the multiple telescopic shafts (11). One end of each of the multiple telescopic shafts (11) is fixedly connected to the same waterproof ring (13).

3. A horizontal optical cable junction box with a water-proof structure according to claim 1, characterized in that: One end of the spring (4) is fixedly connected to the inside of the fixed shaft (3), and the other end of the spring (4) is fixedly connected to the inside of the retaining shaft (5). The spring (4) provides elastic force to the retaining shaft (5).

4. A horizontal optical cable junction box with a water-proof structure according to claim 1, characterized in that: Multiple of the said ball bearings (6) move freely in the same said connector tube (2) and are fixed to the internally sliding connecting tube (7) when squeezed by the said bearing shaft (5).

5. A horizontal optical cable junction box with a water-proof structure according to claim 1, characterized in that: Multiple of the ball bearings (6) are engaged inside the ball tube groove (10) and are pressed by the fixed shaft (3) to engage with the ball tube groove (10).

6. A horizontal optical cable junction box with a water-proof structure according to claim 1, characterized in that: The outer shape of the card shaft (5) and the fixed shaft (3) is spiral, and the inner shape of the rotating cylinder (14) is spiral.

7. A horizontal optical cable junction box with a waterproof structure according to claim 2, characterized in that: One end of the waterproof ring (13) is fitted to the connecting pipe (7) to provide waterproofing.

8. A horizontal optical cable junction box with a water-proof structure according to claim 2, characterized in that: The multiple telescopic shafts (11) and the second spring (12) provide waterproof compressive force to the waterproof ring (13).

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