Optical fiber cold connection sealing protection device

Abstract

The utility model discloses an optical fiber cold connection sealing protection device, and belongs to the technical field of optical fibers, and the sealing protection device comprises a connector box, a fixing part, and an installation block. A protection assembly is arranged outside the mounting block and comprises an upper protection piece and a lower protection piece; the upper protection piece comprises a first transverse plate, a first vertical plate fixedly arranged at one end of the first transverse plate and a first sealing ring fixedly arranged in the first transverse plate. The lower protection piece comprises a second transverse plate, a second vertical plate fixedly arranged at one end of the second transverse plate and a second sealing ring fixedly arranged in the second transverse plate. Through the design of the mounting block and the protection assembly, the top and the bottom of the mounting block are inserted into the first insertion groove and the second insertion groove correspondingly, and the first sealing ring and the second sealing ring are extruded, so that external water vapor or dust is prevented from entering the space between the first insertion groove or the second insertion groove and the outer wall of the mounting block; the fixing piece is protected, and the fixing piece is prevented from being rusted.

Description

Technical Field

[0001] This application relates to the field of optical fiber technology, specifically an optical fiber cold splice sealing protection device. Background Technology

[0002] Fiber optic cold splicing is a fiber optic connection technology that does not require high-temperature fusion splicing. After cold splicing, the joint needs to be protected, especially in outdoor, humid or dusty applications. A splice box is usually installed at the fiber optic joint to place the fiber optic joint inside, thereby sealing and protecting the fiber.

[0003] Fiber optic junction boxes typically consist of two symmetrically arranged boxes. The optical fiber passes through a conduit within the box and is then placed inside. The two boxes are then joined together, the conduit is sealed with a rubber ring, and the boxes are secured with bolts and nuts. However, junction boxes are often located in humid and dusty environments, causing the threads between the nuts and bolts to become rusted over time. This rust can lead to the threads seizing up, making it difficult to open the junction box when the fiber needs to be replaced.

[0004] Therefore, this application provides a fiber optic cold splice sealing protection device to solve the above problems. Utility Model Content

[0005] This application provides a fiber optic cold-splitting sealing protection device, which aims to solve the problems mentioned in the background art. Existing fiber optic splice boxes are usually composed of two symmetrically arranged boxes, which are fixedly installed by bolts and nuts. However, splice boxes are usually in a humid and dusty environment. The nuts and bolts are exposed to this environment for a long time, which causes the threads to rust. When the fiber needs to be replaced, the threads between the nuts and bolts will be rusted and make it difficult to open the splice box.

[0006] To achieve the above objectives, this application provides the following technical solution: a fiber optic cold splice sealing protection device, comprising a junction box, a fixing member inserted into the side of the junction box for closing and installing the junction box, and a mounting block fixedly disposed on the side of the junction box for inserting and installing the fixing member.

[0007] To protect the fastener: the mounting block is externally provided with a protective assembly for protecting the fastener. The protective assembly includes an upper protective member disposed on the top of the mounting block to cover the top of the fastener and a lower protective member disposed on the bottom of the mounting block to cover the bottom of the fastener. The upper protective member includes a first horizontal plate disposed on the top of the fastener, a first vertical plate fixedly disposed at one end of the first horizontal plate, and a first sealing ring fixedly disposed inside the first horizontal plate for sealing between the first horizontal plate and the top of the mounting block. The lower protective member includes a second horizontal plate disposed at the bottom of the fastener, a second vertical plate fixedly disposed at one end of the second horizontal plate, and a second sealing ring fixedly disposed inside the second horizontal plate for sealing between the second horizontal plate and the bottom of the mounting block. The connector box is fixedly installed by inserting the fixing bolt into the mounting groove and then threading the fixing nut onto the outer wall of the fixing bolt. Then, the first horizontal plate and the second horizontal plate are placed on the top and bottom of the mounting block, respectively, so that the top and bottom of the mounting block are inserted into the first slot and the second slot, respectively. Under the action of the first sealing ring and the second sealing ring, the gap between the first slot and the second slot and the outer wall of the mounting block is filled tightly to prevent external moisture or dust from corroding the fastener. The insert is inserted into the insertion groove, and the pressing block is inserted into the locking hole to achieve the fixed installation of the upper protective component and the lower protective component, preventing the upper protective component and the lower protective component from falling off the outside of the mounting block.

[0008] Preferably, to facilitate the fixed installation of the junction box: the mounting block is fixedly nested on the side of the junction box, and the top of the mounting block has a mounting groove for installing the fixing member. The fixing member includes a fixing bolt inserted into the mounting groove and a fixing nut sleeved on the outer wall of the bottom of the fixing bolt to limit the movement of the fixing bolt. By inserting the fixing bolt into the mounting groove and sleeved on the outside of the fixing bolt, the junction box is fixedly installed.

[0009] Preferably, to facilitate protection of the top of the mounting block: a first slot for inserting the mounting block is provided at the bottom of the first horizontal plate; the outer wall of the first sealing ring is fixedly connected to the inner wall of the first slot; and the shapes of the first slot and the first sealing ring correspond to the shape of the mounting block. By inserting the top of the mounting block into the first slot, moisture or dust is prevented from corroding the top of the fastener under the action of the first sealing ring.

[0010] Preferably, to facilitate protection of the bottom of the mounting block: a second slot for inserting the mounting block is provided at the top of the second horizontal plate, and the outer wall of the second sealing ring is fixedly connected to the inner wall of the second slot. By inserting the bottom of the mounting block into the interior of the second slot, moisture or dust is prevented from corroding the bottom of the fastener under the action of the second sealing ring.

[0011] Preferably, to facilitate the connection between the upper and lower protective components: a connector for connecting the first and second vertical plates is provided at the end of the first vertical plate facing the second vertical plate. The connector includes a plug, the plug having a cavity inside, a through hole in the inner wall of the cavity, and a pressing block inserted through the through hole. A baffle is fixedly connected to one end of the pressing block, and an elastic block is provided on one side of the baffle. The top of the second vertical plate has a insertion groove for inserting the plug, and a locking hole for inserting the pressing block is provided on the inner wall of the insertion groove. By inserting the plug into the insertion groove and the pressing block into the locking hole, the upper and lower protective components are fixedly connected, thereby maintaining the protection of the fixed component by the protective assembly.

[0012] Preferably, to prevent the fastener from loosening: the first slot is internally provided with a bolt clamping member for restricting the movement of the fastener. The bolt clamping member includes a first clamping plate for clamping the top of the fastener and a first clamping spring disposed on the top of the first clamping plate for pushing the first clamping plate. By clamping the top of the fastening bolt with the first clamping plate, large-scale shaking of the fastening bolt is avoided. The clamping of the bottom of the fastening nut by the second clamping plate prevents the fastening nut from moving away from the mounting block, thereby preventing the fastening bolt and the fastening nut from separating and maintaining the stability of the connector box installation.

[0013] Preferably, the second slot is provided with a nut clamping member for restricting the movement of the fixing member. The nut clamping member includes a second clamping plate for clamping the bottom of the fixing member and a second clamping spring provided at the bottom of the second clamping plate for pushing the second clamping plate. A round hole is provided at the top of the second clamping plate.

[0014] This application, through the design of an mounting block, protective components, bolt clamping parts, and nut clamping parts, inserts the top and bottom of the mounting block into the first and second slots respectively, and clamps the first and second sealing rings. This prevents external moisture or dust from entering through the gap between the first or second slot and the outer wall of the mounting block, thus protecting the fasteners and preventing corrosion. Simultaneously, when installing the upper and lower protective components, the first and second clamping plates respectively clamp the fixing bolts and nuts, preventing them from falling off under vibration, thereby ensuring the stable installation of the junction box. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a fiber optic cold splice sealing protection device.

[0016] Figure 2 for Figure 1 Structural diagram of the junction box and fasteners;

[0017] Figure 3 for Figure 2 Schematic diagram of the middle fixing component;

[0018] Figure 4 for Figure 1 Schematic diagram of the upper and middle protective components;

[0019] Figure 5 for Figure 4 A structural schematic diagram of the side cross-section of the upper and middle protective components;

[0020] Figure 6 for Figure 4 Enlarged structural diagram of A in the middle;

[0021] Figure 7 for Figure 1 Schematic diagram of the structure of the lower protective component;

[0022] Figure 8 for Figure 7 A schematic diagram of the structure of the lower protective component from the side.

[0023] In the picture:

[0024] 1. Junction box; 2. Fixing component; 21. Fixing bolt; 22. Fixing nut; 3. Mounting block; 4. Protective component; 41. Upper protective component; 411. First horizontal plate; 412. First vertical plate; 413. First sealing ring; 414. Insert block; 415. Pressing block; 416. Baffle; 417. Elastic block; 42. Lower protective component; 421. Second horizontal plate; 422. Second vertical plate; 423. Second sealing ring; 5. Bolt pressing component; 51. First pressing plate; 52. First pressing spring; 6. Nut pressing component; 61. Second pressing plate; 62. Second pressing spring. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] This embodiment provides a fiber optic cold-splitting sealing protection device, such as... Figure 1-8 As shown, the sealing protection device includes a connector box 1, a fastener 2 that is inserted into the side of the connector box 1 for closing and installing the connector box 1, and a mounting block 3 that is fixedly installed on the side of the connector box 1 for inserting and installing the fastener 2.

[0027] To protect the fastener 2, the mounting block 3 is provided with a protective component 4 for protecting the fastener 2. The protective component 4 includes an upper protective component 41 on the top of the mounting block 3 to cover the top of the fastener 2 and a lower protective component 42 on the bottom of the mounting block 3 to cover the bottom of the fastener 2. The upper protective component 41 includes a first horizontal plate 411 on the top of the fastener 2, a first vertical plate 412 fixedly disposed at one end of the first horizontal plate 411, and a first sealing ring 413 fixedly disposed inside the first horizontal plate 411 for sealing between the first horizontal plate 411 and the top of the mounting block 3. The lower protective component 42 includes a second horizontal plate 421 on the bottom of the fastener 2, a second vertical plate 422 fixedly disposed at one end of the second horizontal plate 421, and a second sealing ring 423 fixedly disposed inside the second horizontal plate 421 for sealing between the second horizontal plate 421 and the bottom of the mounting block 3. By inserting the fixing bolt 21 into the mounting groove and then threading the fixing nut 22 onto the outer wall of the fixing bolt 21, the connector box 1 is fixedly installed. Then, the first horizontal plate 411 and the second horizontal plate 421 are placed on the top and bottom of the mounting block 3, respectively, so that the top and bottom of the mounting block 3 are inserted into the first slot and the second slot, respectively. Under the action of the first sealing ring 413 and the second sealing ring 423, the gap between the first slot and the second slot and the outer wall of the mounting block 3 is filled tightly, thereby preventing external moisture or dust from corroding the fastener 2. The insert block 414 is inserted into the insertion groove, and the pressing block 415 is inserted into the locking hole to achieve the fixed installation of the upper protective member 41 and the lower protective member 42, preventing the upper protective member 41 and the lower protective member 42 from falling off the outside of the mounting block 3.

[0028] Furthermore, the junction box 1 and multiple mounting blocks 3 constitute the existing fiber optic junction box. The junction box 1 is fixedly installed by inserting the fastener 2 inside the mounting block 3, which is a common technical means in the existing technical field.

[0029] Specifically, to facilitate the fixed installation of the junction box 1: the mounting block 3 is fixedly nested on the side of the junction box 1, and the top of the mounting block 3 has a mounting groove for installing the fixing member 2. The fixing member 2 includes a fixing bolt 21 inserted into the mounting groove and a fixing nut 22 sleeved on the bottom outer wall of the fixing bolt 21 to restrict the movement of the fixing bolt 21. By inserting the fixing bolt 21 into the mounting groove and sleeved on the outside of the fixing bolt 21, the junction box 1 is fixedly installed. Multiple mounting blocks 3 are provided, symmetrically distributed on the side of the junction box 1. The mounting blocks 3 and the junction box 1 are integrally formed. By inserting the fixing bolt 21 into the mounting groove, the junction box 1 is fixedly installed under the joint pressing action of the fixing bolt 21 nut and the fixing nut 22.

[0030] Specifically, to facilitate the protection of the top of the mounting block 3: the bottom of the first horizontal plate 411 has a first slot for inserting the mounting block 3, the outer wall of the first sealing ring 413 is fixedly connected to the inner wall of the first slot, and the shapes of the first slot and the first sealing ring 413 correspond to the shape of the mounting block 3. By inserting the top of the mounting block 3 into the interior of the first slot, the first sealing ring 413 prevents moisture or dust from corroding the top of the fixing member 2. The shape of the first slot is the same as the shape of the top of the mounting block 3, and the first sealing ring 413 is bonded and fixed to the inner wall of the first slot. By inserting the top of the mounting block 3 into the interior of the first slot, the first sealing ring 413 is squeezed by the outer wall of the top of the mounting block 3, thereby filling the gap between the inner wall of the first slot and the outer wall of the mounting block 3 to isolate external moisture and dust.

[0031] Specifically, to facilitate the protection of the bottom of the mounting block 3: a second slot for inserting the mounting block 3 is provided at the top of the second horizontal plate 421, and the outer wall of the second sealing ring 423 is fixedly connected to the inner wall of the second slot. By inserting the bottom of the mounting block 3 into the interior of the second slot, moisture or dust is prevented from corroding the bottom of the fixing member 2 under the action of the second sealing ring 423. The shape of the second slot is the same as the shape of the bottom of the mounting block 3, and the second sealing ring 423 is bonded and fixed to the inner wall of the second slot. By inserting the bottom of the mounting block 3 into the interior of the second slot, the second sealing ring 423 is squeezed by the outer wall of the bottom of the mounting block 3, thereby filling the gap between the inner wall of the second slot and the outer wall of the mounting block 3 to isolate external moisture and dust.

[0032] More specifically, to facilitate the connection between the upper protective member 41 and the lower protective member 42: A connector for connecting the first vertical plate 412 and the second vertical plate 422 is provided at one end of the first vertical plate 412 facing the second vertical plate 422. The connector includes an insert block 414, which has a cavity inside. A through hole is formed on the inner wall of the cavity. A pressing block 415 is inserted through the through hole. A baffle 416 is fixedly connected to one end of the pressing block 415. An elastic block 417 is provided on one side of the baffle 416. The top of the second vertical plate 422 has a insertion groove for inserting the insert block 414, and a locking hole is formed on the inner wall of the insertion groove for inserting the pressing block 415. By inserting the insert block 414 into the insertion groove and the pressing block 415 into the locking hole, the upper protective member 41 and the lower protective member 42 are fixedly connected, thereby maintaining the protection of the fixing member 2 by the protective assembly 4. The size of the insertion slot is adapted to the size of the insertion block 414. The through hole and the locking hole are the same size. The through hole size is adapted to the size of the pressing block 415. The size of the baffle 416 is 1.2 times the size of the through hole. The elastic block 417 is an elastic rubber block. The elastic block 417 is always in a compressed state in the cavity. The baffle 416 and the elastic block 417 are located in the cavity. When it is necessary to connect the upper protective member 41 and the lower protective member 42, the insertion block 414 is inserted into the insertion slot by pressing the pressing block 415 until the pressing block 415 moves to the locking hole position. Under the action of the restoring force of the elastic block 417, the baffle 416 is pushed to drive the pressing block 415 to insert into the locking hole, thus completing the connection of the upper protective member 41 and the lower protective member 42. When disassembling, the insertion block 414 can be pulled out of the insertion slot by pressing the pressing block 415 to separate the upper protective member 41 and the lower protective member 42.

[0033] Specifically, to prevent the fastener 2 from loosening: the first slot is equipped with a bolt clamping member 5 to restrict the movement of the fastener 2. The bolt clamping member 5 includes a first clamping plate 51 for clamping the top of the fastener 2 and a first compression spring 52 disposed on the top of the first clamping plate 51 for pushing the first clamping plate 51. The second slot is equipped with a nut clamping member 6 to restrict the movement of the fastener 2. The nut clamping member 6 includes a second clamping plate 61 for clamping the bottom of the fastener 2 and a second compression spring 62 disposed on the bottom of the second clamping plate 61 for pushing the second clamping plate 61. The top of the second clamping plate 61 has a round hole. By clamping the top of the fastener 21 with the first clamping plate 51, large shaking of the fastener 21 is avoided. By clamping the bottom of the fastener 22 with the second clamping plate 61, the fastener 22 is prevented from moving away from the mounting block 3, thereby preventing the fastener 21 from separating from the fastener 22 and maintaining the stability of the connector box 1. The shape and size of the first compression plate 51 correspond to the shape and size of the top of the fixing bolt 21. The first compression spring 52 is disposed between the top of the first compression plate 51 and the top of the inner wall of the first slot. The two ends of the first compression spring 52 are respectively bonded to the contact parts of the first compression plate 51 and the first slot. The shape and size of the second compression plate 61 correspond to the shape and size of the bottom of the fixing nut 22. The second compression spring 62 is disposed between the bottom of the first compression plate 51 and the bottom of the inner wall of the second slot. The two ends of the second compression spring 62 are respectively bonded to the contact parts of the second compression plate 61 and the second slot. The size of the circular hole is 1.1 times the diameter of the fixing bolt 21 rod. The fixing bolt 21 rod is inserted into the circular hole, so that the second compression plate 61 and the fixing nut 22 are in contact with each other. When the bottom is inserted into the first slot and the second slot respectively, the first pressing plate 51 and the second pressing plate 61 will contact the top of the fixing bolt 21 and the bottom of the fixing nut 22 respectively. As the upper protective member 41 and the lower protective member 42 are fixedly connected, the first pressing plate 51 and the second pressing plate 61 will compress the first pressing spring 52 and the second pressing spring 62 respectively. As a result, the restoring force of the first pressing spring 52 and the second pressing spring 62 will push the first pressing plate 51 and the second pressing plate 61 respectively, acting on the top of the fixing bolt 21 and the bottom of the fixing nut 22 respectively, so that the fixing bolt 21 and the fixing nut 22 have a tendency to move relative to each other. When the junction box 1 is used outside, it can reduce the possibility of the fixing nut 22 falling off the fixing bolt 21 due to vibration in the event of collision or vibration.

[0034] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A fiber optic cold splice sealing protection device, comprising a junction box (1), a fixing member (2) inserted into the side of the junction box (1) for closing and installing the junction box (1), and a mounting block (3) fixedly disposed on the side of the junction box (1) for inserting and installing the fixing member (2). Its features are: The mounting block (3) is provided with a protective component (4) for protecting the fastener (2). The protective component (4) includes an upper protective component (41) provided on the top of the mounting block (3) for covering the top of the fastener (2) and a lower protective component (42) provided on the bottom of the mounting block (3) for covering the bottom of the fastener (2). The upper protective member (41) includes a first horizontal plate (411) disposed on the top of the fixing member (2), a first vertical plate (412) fixedly disposed at one end of the first horizontal plate (411), and a first sealing ring (413) fixedly disposed inside the first horizontal plate (411) for sealing between the first horizontal plate (411) and the top of the mounting block (3). The lower protective member (42) includes a second horizontal plate (421) disposed at the bottom of the fixing member (2), a second vertical plate (422) fixedly disposed at one end of the second horizontal plate (421), and a second sealing ring (423) fixedly disposed inside the second horizontal plate (421) for sealing between the second horizontal plate (421) and the bottom of the mounting block (3).

2. The optical fiber cold splice sealing protection device according to claim 1, characterized in that: The mounting block (3) is fixedly nested on the side of the connector box (1). The top of the mounting block (3) is provided with a mounting groove for mounting the fastener (2). The fastener (2) includes a fixing bolt (21) inserted inside the mounting groove and a fixing nut (22) sleeved on the bottom outer wall of the fixing bolt (21) to restrict the movement of the fixing bolt (21).

3. The optical fiber cold splice sealing protection device according to claim 1, characterized in that: The bottom of the first horizontal plate (411) is provided with a first slot for inserting the mounting block (3), the outer wall of the first sealing ring (413) is fixedly connected to the inner wall of the first slot, and the shape of the first slot and the first sealing ring (413) corresponds to the shape of the mounting block (3).

4. The optical fiber cold splice sealing protection device according to claim 1, characterized in that: The top of the second horizontal plate (421) is provided with a second slot for inserting the mounting block (3), and the outer wall of the second sealing ring (423) is fixedly connected to the inner wall of the second slot.

5. The optical fiber cold splice sealing protection device according to claim 1, characterized in that: The first vertical plate (412) is provided with a connector for connecting the first vertical plate (412) and the second vertical plate (422) at one end facing the second vertical plate (422). The connector includes a plug (414), the plug (414) has a cavity inside, the inner wall of the cavity has a through hole, and a pressing block (415) is inserted inside the through hole. A baffle (416) is fixedly connected to one end of the pressing block (415), and an elastic block (417) is provided on one side of the baffle (416). The top of the second vertical plate (422) has a insertion groove for inserting the plug (414), and the inner wall of the insertion groove has a locking hole for inserting the pressing block (415).

6. The optical fiber cold splice sealing protection device according to claim 3, characterized in that: The first slot is provided with a bolt clamp (5) for restricting the movement of the fixing member (2). The bolt clamp (5) includes a first clamping plate (51) for clamping the top of the fixing member (2) and a first clamping spring (52) provided on the top of the first clamping plate (51) for pushing the first clamping plate (51).

7. The optical fiber cold splice sealing protection device according to claim 4, characterized in that: The second slot is provided with a nut clamp (6) for restricting the movement of the fixing member (2). The nut clamp (6) includes a second clamping plate (61) for clamping the bottom of the fixing member (2) and a second clamping spring (62) provided at the bottom of the second clamping plate (61) for pushing the second clamping plate (61). The top of the second clamping plate (61) is provided with a round hole.

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