Dustproof sealing device for mine vibration optical fiber terminal box

Abstract

The utility model relates to the field of optical fiber terminal box, disclose a mine vibration optical fiber terminal box dustproof sealing device, including optical fiber terminal box, the optical fiber terminal box outside is provided with installation sealing mechanism and locking dismounting mechanism, installation sealing mechanism includes fixed shell, the fixed shell inner wall rotationally connected with two -way threaded rod, two -way threaded rod outer wall has the cover plate through the thread sleeve no.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic terminal boxes, and in particular to a dustproof and sealing device for a vibration fiber optic terminal box in a mine. Background Technology

[0002] Fiber optic terminal boxes are commonly used auxiliary devices in fiber optic communication systems, mainly used for terminating optical cables.

[0003] Before using the fiber optic terminal box, check the integrity of the dustproof sealing device, clean any foreign objects from the terminal box interface and keep the sealing surface clean. During installation, accurately fit the sealing ring onto the edge of the interface and ensure it fits tightly. Then, slowly fasten the cover plate or end plate and adjust any shifted sealing rings in time. After fastening, tighten the screws evenly diagonally to ensure the sealing surface is stable. Regularly check the status of the device and deal with any problems in a timely manner. After maintaining the terminal box, reinstall the device according to the steps to maintain a good dustproof seal.

[0004] In mining applications, excavation operations and equipment operation generate continuous and high-intensity vibrations. These vibrations constantly impact the connection structure of the fiber optic terminal box sealing device. If the sealing device lacks a stable locking mechanism, long-term vibrations can easily cause the connecting screws between the cover plate and the terminal box to loosen, or the gap between the seal and the interface to gradually increase. Therefore, a dustproof sealing device for a mining vibration fiber optic terminal box is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a dustproof sealing device for a mine vibration fiber optic terminal box, which aims to improve the problem that the sealing device of the existing mine fiber optic terminal box is prone to loosening under high-intensity vibration environment, resulting in failure of dustproof and moisture-proof sealing performance.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a dustproof sealing device for a mine vibration fiber optic terminal box, comprising a fiber optic terminal box, wherein an installation sealing mechanism and a locking and disassembly mechanism are provided on the outside of the fiber optic terminal box, the installation sealing mechanism comprising a fixed outer shell, a bidirectional threaded rod rotatably connected to the inner wall of the fixed outer shell, a cover plate threadedly connected to the outer wall of the bidirectional threaded rod through a threaded sleeve, the bidirectional threaded rod being threadedly connected to the inner wall of the fiber optic terminal box through a threaded sleeve, a stud threadedly connected to the inner wall of the cover plate, a fixed cylinder fixedly connected to the bottom end of the stud, a fixed shell rotatably connected to the bottom end of the fixed cylinder, a sealing sleeve fixedly connected to the bottom end of the fixed shell, a fixed plate fixedly connected to the side wall of the fixed outer shell, and the outer wall of the sealing sleeve slidingly connected to the inner wall of the cover plate.

[0007] As a further description of the above technical solution: The sealing mechanism also includes a knob, a ratchet is fixedly connected to the outer wall of the knob, a bidirectional threaded rod is fixedly connected to the bottom end of the knob, a pull rod is slidably connected to the inner wall of the fixed housing, a pawl is fixedly connected to the bottom end of the pull rod, the inner wall of the fixed housing is elastically connected to the top end of the pawl through a spring, and the outer wall of the pawl is engaged with the outer wall of the ratchet.

[0008] As a further description of the above technical solution: The outer wall of the bidirectional threaded rod is threadedly connected to the inner wall of the first threaded sleeve, the outer wall of the first threaded sleeve is fixedly connected to the inner wall of the cover plate, the outer wall of the bidirectional threaded rod is threadedly connected to the inner wall of the second threaded sleeve, and the outer wall of the second threaded sleeve is fixedly connected to the inner wall of the fiber optic terminal box.

[0009] As a further description of the above technical solution: One end of the spring is fixedly connected to the inner wall of the fixed housing, and the other end of the spring is fixedly connected to the top of the pawl.

[0010] As a further description of the above technical solution: The outer wall of the fixing plate has mounting holes.

[0011] As a further description of the above technical solution: The locking and disassembly mechanism includes a pull rod two, a wedge two fixedly connected to the bottom end of the cover plate, the outer wall of the wedge two being inserted into the inner wall of the fiber optic terminal box, the outer wall of the pull rod two being slidably connected to the inner wall of the fiber optic terminal box, a wedge one fixedly connected to the side wall of the pull rod two, the inner wall of the fiber optic terminal box being elastically connected to one side wall of the wedge two via a spring two, the outer wall of the wedge one being inserted into the inner wall of the wedge two, one end of the spring two being fixedly connected to the inner wall of the fiber optic terminal box, and the other end of the spring two being fixedly connected to one side wall of the wedge.

[0012] As a further description of the above technical solution: The locking and disassembly mechanism also includes a cross-shaped rotating rod, on the outer wall of which a cross-shaped rotating cylinder is slidably connected. The outer wall of the cross-shaped rotating cylinder is rotatably connected to the inner wall of the stud. A fixing block is fixedly connected to the bottom end of the cross-shaped rotating rod, and the inner wall of the fixing shell is elastically connected to the bottom end of the fixing block through a spring.

[0013] As a further description of the above technical solution: One end of the spring is fixedly connected to the inner wall of the fixed shell, and the other end of the spring abuts against the bottom end of the fixed block.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the installation sealing mechanism fixes the fixed outer shell to the mine support structure through the mounting holes on the outer wall of the fixed plate, laying a stable foundation for the device. Rotating the knob drives the bidirectional threaded rod to make the cover plate fit with the terminal box to form a preliminary seal. Then, rotating the stud makes the sealing sleeve form a secondary seal. With the help of the ratchet pawl and wedge locking mechanism, it can resist mine vibration, prevent the cover plate from loosening, and continuously block dust and moisture.

[0015] 2. In this utility model, the locking and disassembly mechanism can release the ratchet and wedge lock by pulling the first and second levers during maintenance. Rotating the knob in the opposite direction can drive the cover plate to move up and take out the terminal box. Rotating and pulling out the cross lever can also remove the sealing sleeve for cleaning and replacement. The whole process is completed based on the existing structure, without complicated operation, which greatly reduces the difficulty of on-site maintenance in the mine and improves maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a dustproof sealing device for a mine vibration fiber optic terminal box proposed in this utility model. Figure 2 This is a schematic cross-sectional view of the fixed outer shell of a dustproof sealing device for a mine vibration fiber optic terminal box proposed in this utility model. Figure 3 This is a cross-sectional schematic diagram of the cover plate of a dustproof sealing device for a mine vibration fiber optic terminal box proposed in this utility model. Figure 4 This is a cross-sectional schematic diagram of a dustproof sealing device for a mine vibration fiber optic terminal box proposed in this utility model. Figure 5 This is a cross-sectional schematic diagram of the fixed shell of a dustproof sealing device for a mine vibration fiber optic terminal box proposed in this utility model.

[0017] Legend: 1. Fiber optic terminal box; 2. Installation and sealing mechanism; 211. Cover plate; 212. Bidirectional threaded rod; 213. Stud; 214. Fixing cylinder; 215. Fixing shell; 216. Sealing sleeve; 217. Fixing plate; 218. Mounting hole; 219. Fixing shell; 220. Knob; 221. Ratchet; 222. Pull rod one; 223. Spring one; 224. Pawl; 3. Locking and disassembly mechanism; 311. Pull rod two; 312. Spring two; 313. Wedge one; 314. Wedge two; 315. Cross rotating rod; 316. Cross rotating cylinder; 317. Fixing block; 318. Spring three. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-3 This utility model provides an embodiment of a dustproof sealing device for a fiber optic terminal box used in mining vibration. The device includes a fiber optic terminal box 1. The fiber optic terminal box 1 is externally equipped with an installation sealing mechanism 2 and a locking and disassembly mechanism 3. The installation sealing mechanism 2 includes a fixed outer shell 219, which carries various sealing and locking components, providing installation space for the fiber optic terminal box 1 and mitigating the displacement risk caused by mining vibration. A bidirectional threaded rod 212 is rotatably connected to the inner wall of the fixed outer shell 219. The bidirectional threaded rod 212 drives a cover plate 211 to slide up and down to achieve sealing or opening, while simultaneously driving the fiber optic terminal box 1 in and out of the fixed outer shell 219, providing power for the core operation. The outer wall of the bidirectional threaded rod 212 is threadedly connected to the cover plate 211 via a threaded sleeve. The cover plate 211 fits against the top of the fiber optic terminal box 1 to form a preliminary physical seal, while the sealing sleeve 216 and other components achieve a secondary seal. A wedge block 314 at the bottom assists in locking. The bidirectional threaded rod 212 is threadedly connected to the inner wall of the fiber optic terminal box 1 via the threaded sleeve. A stud 213 is threadedly connected to the inner wall of the cover plate 211. The stud 213 carries… The movable fixed cylinder 214, fixed shell 215, and sealing sleeve 216 move downwards, causing the sealing sleeve 216 to fit against the interface gap of the fiber optic terminal box 1, adjusting the sealing pressure. The fixed cylinder 214 is fixedly connected to the bottom end of the stud 213. The fixed cylinder 214 connects the stud 213 and the fixed shell 215, transmitting the downward pressure of the stud 213 and providing installation support for the sealing sleeve 216. The fixed shell 215 is rotatably connected to the bottom end of the fixed cylinder 214. The fixed shell 215 fixes the sealing sleeve 216, and cooperates with the cross rotating cylinder 316 and the fixed block 317 to achieve sealing. The detachable connection of sleeve 216 facilitates replacement and cleaning. The bottom of the fixed shell 215 is fixedly connected to the sealing sleeve 216. The sealing sleeve 216 is completely fitted with the interface and gap of the fiber optic terminal box 1 to form a secondary flexible seal, blocking the intrusion of fine dust and moisture. The side wall of the fixed shell 219 is fixedly connected to the fixing plate 217. The fixing plate 217 is fixed to the mine support structure through the mounting hole 218, providing a stable installation foundation for the fixed shell 219 and ensuring the stability of the overall structure. The outer wall of the sealing sleeve 216 is slidably connected to the inner wall of the cover plate 211.

[0020] Reference Figures 1-3The sealing mechanism 2 also includes a knob 220, which provides manual power for rotating the bidirectional threaded rod 212, causing the cover plate 211 and the fiber optic terminal box 1 to move. It engages with a ratchet 221 to achieve a locked state. A ratchet 221 is fixedly connected to the outer wall of the knob 220. The ratchet 221 engages with a pawl 224 to lock the position of the bidirectional threaded rod 212, preventing reverse rotation from causing the cover plate 211 to loosen and maintaining a sealed state. A bidirectional threaded rod 212 is fixedly connected to the bottom of the knob 220. A pull rod 222 is slidably connected to the inner wall of the fixed housing 219. The pull rod 222 causes the pawl 224 to disengage from the ratchet 221, releasing the lock on the bidirectional threaded rod 212 and allowing the knob 220 to be rotated in reverse for adjustment. A pawl 224 is fixedly connected to the bottom of the pull rod 222. The pawl 224 engages with the ratchet 221 to lock the bidirectional threaded rod 212, preventing vibration from causing the cover plate 211 to loosen and ensuring a stable seal. Qualitatively, the inner wall of the fixed outer shell 219 is elastically connected to the top of the pawl 224 via a spring 223. The spring 223 provides elastic thrust to the pawl 224, maintaining the engagement of the pawl 224 with the ratchet 221, ensuring reliable locking when not in operation. The outer wall of the pawl 224 is engaged with the outer wall of the ratchet 221. The outer wall of the bidirectional threaded rod 212 is threadedly connected to the inner wall of the threaded sleeve 1. The outer wall of the threaded sleeve 1 is fixedly connected to the inner wall of the cover plate 211. The outer wall of the bidirectional threaded rod 212 is threadedly connected to the inner wall of the threaded sleeve 2. The outer wall of the threaded sleeve 2 is fixedly connected to the inner wall of the fiber optic terminal box 1. One end of the spring 223 is fixedly connected to the inner wall of the fixed outer shell 219, and the other end of the spring 223 is fixedly connected to the top of the pawl 224. The outer wall of the fixed plate 217 has a mounting hole 218, which provides an interface for fixing the fixed plate 217 to the external support structure, ensuring stable installation of the device and resisting mine vibration.

[0021] Reference Figure 4 , Figure 5The locking and disassembly mechanism 3 includes a second pull rod 311. The second pull rod 311 drives the first wedge 313 to disengage from the second wedge 314, releasing the lock between the cover plate 211 and the fiber optic terminal box 1, making it easier to open the cover plate 211. The bottom end of the cover plate 211 is fixedly connected to the second wedge 314. The second wedge 314 is inserted into the inner wall of the fiber optic terminal box 1, triggering the locking mechanism. It cooperates with the first wedge 313 to reinforce the cover plate 211 and prevent vibration displacement. The outer wall of the second wedge 314 is inserted into the inner wall of the fiber optic terminal box 1, and the outer wall of the second pull rod 311 is slidably connected to the inner wall of the fiber optic terminal box 1. The side wall of the second pull rod 311 is fixed. A wedge 313 is fixedly connected to the inner wall of a second wedge 314, further locking the cover plate 211 and the fiber optic terminal box 1. This design is suitable for high-intensity vibration environments in mines. The inner wall of the fiber optic terminal box 1 is elastically connected to the side wall of the first wedge 313 via a second spring 312. The second spring 312 provides a reset force for the first wedge 313, maintaining the insertion and locking state of the first wedge 313 and the second wedge 314, thus enhancing the sealing effect. The outer wall of the first wedge 313 is inserted into the inner wall of the second wedge 314. One end of the second spring 312 is fixedly connected to the inner wall of the fiber optic terminal box 1, and the other end of the second spring 312... The end is fixedly connected to the side wall of the wedge block 313. The locking and disassembly mechanism 3 also includes a cross-rotor 315. The cross-rotor 315 drives the fixed block 317 to move, controlling the connection state between the fixed block 317 and the fixed shell 215, thereby realizing the disassembly and installation of the sealing sleeve 216. A cross-rotor cylinder 316 is slidably connected to the outer wall of the cross-rotor 315. The cross-rotor cylinder 316 and the cross-rotor 315 slide to provide installation and movement space for the fixed block 317, ensuring smooth disassembly of the sealing sleeve 216. The outer wall of the cross-rotor cylinder 316 is rotatably connected to the inner wall of the stud 213. A fixing block 317 is fixedly connected to the bottom of the 15. The fixing block 317 cooperates with the fixing shell 215 to fix the sealing sleeve 216. When detached, the sealing sleeve 216 can be disassembled for easy cleaning and replacement. The inner wall of the fixing shell 215 is elastically connected to the bottom of the fixing block 317 through a spring 318. The spring 318 provides elastic support for the fixing block 317, maintains the connection between the fixing block 317 and the fixing shell 215, and ensures that the sealing sleeve 216 is installed firmly. One end of the spring 318 is fixedly connected to the inner wall of the fixing shell 215, and the other end of the spring 318 abuts against the bottom of the fixing block 317.

[0022] Working principle: The fixed outer shell 219 is fixed to the support structure at the mine site through the mounting holes 218 on the outer wall of the fixed plate 217, providing a stable foundation for the entire sealing device and resisting the displacement risk caused by mine vibration. Rotating the knob 220 drives the bidirectional threaded rod 212 to rotate. The bidirectional threaded rod 212 is threaded to the inner wall of the fiber optic terminal box 1 through the threaded sleeve 2. The bidirectional threaded rod 212 drives the cover plate 211 to slide down along the inner wall of the fixed outer shell 219 through the threaded sleeve 1 until the cover plate 211 is in contact with the top of the fiber optic terminal box 1, forming a preliminary physical seal to prevent large dust particles from entering. Rotating the stud 213 moves down along the inner wall of the cover plate 211. The stud 213 drives the fixed cylinder 214, the fixed shell 215 and the sealing sleeve 216 to move down synchronously. The sealing sleeve 216 is completely in contact with the interface and gap at the top of the fiber optic terminal box 1, forming a secondary flexible seal to block the intrusion of fine dust and moisture.

[0023] When knob 220 is turned, pawl 224 engages with ratchet 221 under the elastic force of spring 223, preventing bidirectional threaded rod 212 from rotating in the opposite direction and locking the relative position of cover plate 211 and fiber optic terminal box 1 to prevent vibration from causing cover plate 211 to loosen. If adjustment is required, pull lever 222 to drive pawl 224 to compress spring 223 and disengage from ratchet 221, allowing knob 220 to rotate in the opposite direction. When cover plate 211 is closed, wedge 314 at the bottom of cover plate 211 inserts into the inner wall of fiber optic terminal box 1, triggering the locking mechanism. Wedge 313 inserts into the inner wall of wedge 314 under the elastic force of spring 312, further preventing mine vibration from causing cover plate 211 to shift, enhancing the sealing effect, and locking with ratchet 221 to form multiple protections, adapting to the high-intensity vibration environment of mines.

[0024] When maintenance of fiber optic terminal box 1 is required, pull the second pull rod 311, which causes the first wedge block 313 to compress the second spring 312 and disengage from the second wedge block 314, thus releasing the lock between the cover plate 211 and the fiber optic terminal box 1. At the same time, pull the first pull rod 222 to release the ratchet 221 lock of the bidirectional threaded rod 212. Rotate the knob 220 in the opposite direction, and the bidirectional threaded rod 212 will move the cover plate 211 upward, simultaneously causing the sealing sleeve 216 to disengage from the fiber optic terminal box 1. Continue to rotate the knob 220 to remove the fiber optic terminal box 1 from the fixed housing 219, completing the disassembly. The operation is convenient and does not affect the maintenance efficiency. When it is necessary to disassemble the sealing sleeve 216, simply rotate and pull out the cross lever 315 to disengage the fixing block 317 fixed at the bottom from the fixed housing 215 to disassemble the sealing sleeve 216, and then clean and replace the sealing sleeve 216.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 dustproof and sealing device for a mine vibration fiber optic terminal box, comprising a fiber optic terminal box (1), characterized in that: The fiber optic terminal box (1) is provided with an installation sealing mechanism (2) and a locking and disassembly mechanism (3) on its exterior. The installation sealing mechanism (2) includes a fixed outer shell (219), a bidirectional threaded rod (212) is rotatably connected to the inner wall of the fixed outer shell (219), a cover plate (211) is threadedly connected to the outer wall of the bidirectional threaded rod (212) through a threaded sleeve, the bidirectional threaded rod (212) is threadedly connected to the inner wall of the fiber optic terminal box (1) through a threaded sleeve, a stud (213) is threadedly connected to the inner wall of the cover plate (211), a fixed cylinder (214) is fixedly connected to the bottom end of the stud (213), a fixed shell (215) is rotatably connected to the bottom end of the fixed cylinder (214), a sealing sleeve (216) is fixedly connected to the bottom end of the fixed shell (215), a fixed plate (217) is fixedly connected to the side wall of the fixed outer shell (219), and the outer wall of the sealing sleeve (216) is slidably connected to the inner wall of the cover plate (211).

2. The dustproof sealing device for a mine vibration fiber optic terminal box according to claim 1, characterized in that: The installation sealing mechanism (2) also includes a knob (220), a ratchet (221) is fixedly connected to the outer wall of the knob (220), a bidirectional threaded rod (212) is fixedly connected to the bottom end of the knob (220), a pull rod (222) is slidably connected to the inner wall of the fixed housing (219), a pawl (224) is fixedly connected to the bottom end of the pull rod (222), the inner wall of the fixed housing (219) is elastically connected to the top end of the pawl (224) through a spring (223), and the outer wall of the pawl (224) is engaged with the outer wall of the ratchet (221).

3. The dustproof sealing device for a mine vibration fiber optic terminal box according to claim 1, characterized in that: The outer wall of the bidirectional threaded rod (212) is threaded to the inner wall of the threaded sleeve one, the outer wall of the threaded sleeve one is fixedly connected to the inner wall of the cover plate (211), the outer wall of the bidirectional threaded rod (212) is threaded to the inner wall of the threaded sleeve two, and the outer wall of the threaded sleeve two is fixedly connected to the inner wall of the fiber optic terminal box (1).

4. The dustproof sealing device for a mine vibration fiber optic terminal box according to claim 2, characterized in that: One end of the spring (223) is fixedly connected to the inner wall of the fixed housing (219), and the other end of the spring (223) is fixedly connected to the top of the pawl (224).

5. The dustproof sealing device for a mine vibration fiber optic terminal box according to claim 1, characterized in that: The outer wall of the fixing plate (217) is provided with mounting holes (218).

6. The dustproof sealing device for a mine vibration fiber optic terminal box according to claim 1, characterized in that: The locking and disassembly mechanism (3) includes a pull rod two (311), a wedge two (314) is fixedly connected to the bottom end of the cover plate (211), the outer wall of the wedge two (314) is inserted into the inner wall of the fiber optic terminal box (1), the outer wall of the pull rod two (311) is slidably connected to the inner wall of the fiber optic terminal box (1), a wedge one (313) is fixedly connected to the side wall of the pull rod two (311), the inner wall of the fiber optic terminal box (1) is elastically connected to the side wall of the wedge one (313) through a spring two (312), the outer wall of the wedge one (313) is inserted into the inner wall of the wedge two (314), one end of the spring two (312) is fixedly connected to the inner wall of the fiber optic terminal box (1), and the other end of the spring two (312) is fixedly connected to the side wall of the wedge one (313).

7. The dustproof sealing device for a mine vibration fiber optic terminal box according to claim 1, characterized in that: The locking and disassembly mechanism (3) further includes a cross rotating rod (315), the outer wall of which is slidably connected to a cross rotating cylinder (316), the outer wall of which is rotatably connected to the inner wall of the stud (213), the bottom end of which is fixedly connected to a fixing block (317), and the inner wall of the fixing shell (215) is elastically connected to the bottom end of the fixing block (317) through a spring three (318).

8. The dustproof sealing device for a mine vibration fiber optic terminal box according to claim 7, characterized in that: One end of the spring three (318) is fixedly connected to the inner wall of the fixed shell (215), and the other end of the spring three (318) abuts against the bottom end of the fixed block (317).

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