Heat shrink tube type PLC (Programmable Logic Controller) miniature optical splitter

Abstract

The utility model discloses a heat shrink tube type PLC miniature optical splitter, and relates to the field of PLCs, the heat shrink tube type PLC miniature optical splitter comprises a heat shrink tube and fixing mechanisms installed at the two ends of the heat shrink tube, each fixing mechanism comprises an installation sleeve, each installation sleeve is fixedly connected to one end of the heat shrink tube, the outer wall of each installation sleeve is fixedly connected with a bayonet socket, the outer wall of one side of each bayonet socket is provided with a slot, and the outer wall of the other side of each bayonet socket is provided with a clamping groove. A groove is formed in the inner wall of the top of the inserting groove, and limiting grooves are formed in the inner walls of the two sides of the groove. According to the invention, the arrangement of the heat shrink tube facilitates the packaging of the optical branching device, when a line in the heat shrink tube is damaged, the heat shrink tube is directly cut off for maintenance, and then the line can be packaged through the heat shrink tube, thereby solving a problem that an existing optical branching router is inconvenient to maintain after being packaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of PLC, in particular to a heat shrink tube type PLC micro optical branching device. BACKGROUND

[0002] The PLC planar waveguide type optical branching device is an integrated waveguide optical power distribution device based on a quartz substrate. Like coaxial cable transmission systems, optical network systems also need to couple, branch and distribute optical signals, which requires optical branching devices to achieve this. The optical branching device is one of the most important passive devices in an optical fiber link and is an optical fiber junction device with multiple input ends and multiple output ends, which is particularly suitable for connecting local and terminal equipment in a passive optical network (EPON, GPON, BPON, etc.) and achieving optical signal branching.

[0003] However, the existing optical branching device is directly packaged by a steel pipe, and the steel pipe packaging is not convenient for maintenance when it is damaged, and the sealing performance of the steel pipe cannot be guaranteed after repair. CONTENT OF THE INVENTION

[0004] In order to solve the problem of inconvenient maintenance of the existing optical branching device steel pipe packaging, the present application provides a heat shrink tube type PLC micro optical branching device.

[0005] The heat shrink tube type PLC micro optical branching device provided by the present application adopts the following technical scheme:

[0006] The heat shrink tube type PLC micro optical branching device comprises a heat shrink tube and a fixing mechanism installed at both ends of the heat shrink tube, the fixing mechanism comprises a mounting sleeve, the mounting sleeve is fixedly connected to one end of the heat shrink tube, the outer wall of the mounting sleeve is fixedly connected with a plug-in seat, the outer wall of one side of the plug-in seat is provided with a slot, the inner wall of the top of the slot is provided with a groove, and the inner walls of both sides of the groove are provided with limiting grooves.

[0007] By adopting the above technical scheme, the heat shrink tube is provided to facilitate direct packaging of the circuit of the branching device, and the two fixing mechanisms are provided to facilitate fixing of the heat shrink tube, so that the movement of the heat shrink tube can be avoided to affect the transmission stability of the circuit, and the plug-in seat is provided to facilitate installation of the mounting sleeve.

[0008] Preferably, the fixing mechanism further comprises a fixing seat fixedly connected to the PLC shell, and a connecting seat fixedly connected to the outer wall of the top of the fixing seat, wherein the connecting seat is a T-shaped structure.

[0009] By adopting the above technical scheme, the fixing seat and the connecting seat are matched to facilitate quick installation of the plug-in seat.

[0010] Preferably, the two side outer walls of the connecting seat are provided with openings, and the inner walls of the two openings are slidably connected with limiting pins, the limiting pin is a T-shaped structure, and the specification of the limiting pin matches the specification of the limiting groove.

[0011] By adopting the above technical scheme, the limiting pin slidably installed in the connecting seat is convenient for installing the plug-in seat, and the limiting pin is plugged into the limiting groove to conveniently lock the plug-in seat.

[0012] Preferably, the inner wall of the connecting seat is rotatably connected with a gear one, and the two limiting pins are fixedly connected with a rack one on the opposite side outer wall.

[0013] By adopting the above technical scheme, the two racks one are driven to move towards or away from each other by the rotation of the gear one.

[0014] Preferably, the two racks one are meshed with the gear one, the bottom inner wall of the connecting seat is rotatably connected with a gear two, and the gear two and the gear one are connected through a transmission shaft.

[0015] By adopting the above technical scheme, the two racks one are driven to move towards or away from each other by the rotation of the gear one.

[0016] Preferably, the inner wall of the connecting seat is slidably connected with a rack two, and the rack two and the gear two are meshed with each other.

[0017] By adopting the above technical scheme, the gear two is directly driven to rotate by the sliding of the rack two, and the gear one is driven to rotate when the gear two rotates.

[0018] Preferably, the bottom inner wall of the connecting seat is fixedly connected with a volute spring, and one end of the transmission shaft of the gear two is plugged into the volute spring.

[0019] By adopting the above technical scheme, the gear two is conveniently driven to return to the original position by the volute spring, and the two limiting pins are always driven to extend when the gear two and the gear one are reset.

[0020] Preferably, the side outer wall of the connecting seat is provided with a circular groove, and the inner wall of the circular groove is slidably connected with a sliding column, one end of the sliding column is fixedly connected to the rack two, and the top outer wall of the connecting seat is fixedly connected with two symmetrically arranged rubber blocks.

[0021] By adopting the above technical scheme, the rack two is directly driven to slide by the sliding of the sliding column.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The application is convenient for packaging the optical distribution router by the setting of the heat shrink tube. When the line in the heat shrink tube is damaged, the heat shrink tube can be directly cut for maintenance, and then the heat shrink tube can be packaged, solving the problem of inconvenient maintenance of the existing optical distribution router after packaging.

[0024] 2. The application sets the fixing mechanism at both ends of the heat shrink tube, which facilitates fixing the heat shrink tube in the PLC shell, avoids the shaking of the packaged heat shrink tube, and causes damage to the internal line, and the cooperation between the plug-in seat and the connecting seat facilitates the disassembly and assembly of the mounting sleeve, thereby facilitating the maintenance of the heat shrink tube. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The whole structure of the heat shrink tube type PLC micro optical distribution router of the application is shown in the schematic diagram.

[0026] Figure 2 The schematic diagram of the fixing mechanism structure of the application is shown in the schematic diagram.

[0027] Figure 3 The schematic diagram of the mounting sleeve structure of the application is shown in the schematic diagram.

[0028] Figure 4 The schematic diagram of the connecting seat cross-section structure of the application is shown in the schematic diagram.

[0029] Reference signs: 1, heat shrink tube; 2, fixing mechanism; 3, mounting sleeve; 4, plug-in seat; 5, insertion slot; 6, fixing seat; 7, connecting seat; 8, sliding column; 9, limiting pin; 10, groove; 11, rubber block; 12, gear one; 13, rack one; 15, gear two; 16, scroll spring; 17, rack two. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The application will be further described in detail.

[0031] The application discloses a heat shrink tube type PLC micro optical distribution router.

[0032] Reference Figures 1-3 The heat shrink tube type PLC micro optical distribution router comprises a heat shrink tube 1 and a fixing mechanism 2 mounted at both ends of the heat shrink tube 1. The heat shrink tube 1 is heated and shrunk to facilitate packaging the line of the optical distribution router, and can be directly cut for maintenance during later maintenance. After maintenance is completed, the heat shrink tube 1 is packaged by a new heat shrink tube 1. The fixing mechanism 2 is set to facilitate fixing the heat shrink tube 1, thereby avoiding the shaking of the packaged heat shrink tube 1 and affecting the normal transmission of the line.

[0033] Reference Figures 1-3The fixing mechanism 2 comprises a mounting sleeve 3 fixedly connected to one end of the heat shrink tube 1, and an insertion seat 4 fixedly connected to the outer wall of the mounting sleeve 3, and a slot 5 is formed in one side of the outer wall of the insertion seat 4, and a groove 10 is formed in the top inner wall of the slot 5, the insertion seat 4 facilitates the dismounting of the mounting sleeve 3 from the connecting seat 7, and the dismounting of the mounting sleeve 3 facilitates the maintenance and repair of the line in the heat shrink tube 1, and the limiting grooves are formed in the inner walls of the two sides of the groove 10, and the heat shrink tube 1 facilitates the direct packaging of the line of the splitter, and the two fixing mechanisms 2 facilitate the fixing of the heat shrink tube 1, so that the movement of the heat shrink tube 1 does not affect the transmission stability of the line, and the insertion seat 4 facilitates the installation of the mounting sleeve 3.

[0034] Referring to Figures 2-4 The fixing mechanism 2 further comprises a fixing seat 6 fixedly connected to the PLC shell, and a connecting seat 7 is fixedly connected to the top outer wall of the fixing seat 6, the connecting seat 7 has a T-shaped structure, and openings are formed in the outer walls of the two sides of the connecting seat 7, and the inner walls of the two openings are slidably connected with limiting pins 9, the limiting pins 9 have a T-shaped structure, the T-shaped limiting pins 9 ensure the stability of the limiting pins 9, so that the limiting pins 9 do not come off the connecting seat 7, and the specifications of the limiting pins 9 and the limiting grooves are matched, a gear one 12 is rotatably connected to the inner wall of the connecting seat 7, the outer walls of the two sides of the gear one 12 are fixedly connected with gear racks one 13, the two gear racks one 13 are meshed with the gear one 12, the rotation of the gear one 12 directly drives the two gear racks one 13 to move towards or away from each other, a gear two 15 is rotatably connected to the bottom inner wall of the connecting seat 7, and the transmission shafts of the gear two 15 and the gear one 12 are connected, a gear rack two 17 is slidably connected to the inner wall of the connecting seat 7, and the gear rack two 17 is meshed with the gear two 15, a volute spring 16 is fixedly connected to the bottom inner wall of the connecting seat 7, and one end of the transmission shaft of the gear two 15 is inserted into the volute spring 16, a circular groove is formed in one side of the outer wall of the connecting seat 7, and a sliding column 8 is slidably connected to the inner wall of the circular groove, one end of the sliding column 8 is fixedly connected to the gear rack two 17, and two symmetrically arranged rubber blocks 11 are fixedly connected to the top outer wall of the connecting seat 7, the division of the rubber blocks 11 can reduce the abrasion of the connecting seat 7 and the insertion seat 4, and improve the connection stability of the insertion seat 4;

[0035] In use, the sliding column 8 is pressed to drive the gear rack two 17 to drive the gear two 15 to rotate, the gear two 15 directly drives the gear one 12 to rotate when rotating, and the gear one 12 directly drives the two gear racks one 13 to move towards each other when rotating, thereby directly pulling the two limiting pins 9 into the connecting seat 7, when the connecting seat 7 is inserted into the groove 10, the sliding column 8 is released to drive the two gears to return to the original position under the drive of the volute spring 16, so that the two limiting pins 9 are inserted into the limiting grooves.

[0036] The implementation principle of the heat shrink tube type PLC micro optical branching device is as follows: when used, two mounting sleeves 3 are fixed at two ends of the heat shrink tube 1, the heat shrink tube 1 is sleeved outside the line, and then the heat shrink tube 1 is heated and shrunk, so that the line is conveniently packaged, the fixing seat 6 is fixed on the shell of the PLC, and then the mounting sleeve 3 is sleeved on the connecting seat 7 through the plug-in seat 4; when plugging, the sliding column 8 is pressed first, the sliding column 8 drives the gear rack two 17 to drive the gear two 15 to rotate, the gear two 15 directly drives the gear one 12 to rotate when rotating, the gear one 12 directly drives the two gear racks one 13 to move towards each other, so as to directly pull the two limiting pins 9 into the connecting seat 7; when the connecting seat 7 is inserted into the groove 10, the sliding column 8 is released and driven by the volute spring 16 to drive the two gears to return to the original position, so that the two limiting pins 9 are inserted into the limiting groove.

[0037] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A PLC micro optical branching device of heat-shrinkable tube type, comprising a heat-shrinkable tube (1) and a fixing mechanism (2) installed at both ends of the heat-shrinkable tube (1), characterized in that: The fixed mechanism (2) includes a mounting sleeve (3), and the mounting sleeve (3) is fixedly connected on one end of the heat shrink tube (1), the outer wall of the mounting sleeve (3) is fixedly connected with a plug-in seat (4), the outer wall of one side of the plug-in seat (4) is provided with a slot (5), the top inner wall of the slot (5) is provided with a groove (10), and the inner walls on the two sides of the groove (10) are both provided with limiting grooves.

2. The heat-shrinkable tube type PLC micro optical splitter according to claim 1, characterized in that: The fixed mechanism (2) further includes a fixing seat (6) fixedly connected on the PLC shell, and the top outer wall of the fixing seat (6) is fixedly connected with a connecting seat (7), and the connecting seat (7) is a T-shaped structure.

3. The heat-shrinkable tube type PLC micro optical brancher according to claim 2, characterized in that: The outer walls on the two sides of the connecting seat (7) are both provided with openings, and the inner walls of the two openings are both slidably connected with limiting pins (9), the limiting pins (9) are T-shaped structures, and the specifications of the limiting pins (9) and the limiting grooves are matched.

4. The heat-shrinkable tube type PLC micro optical splitter according to claim 3, characterized in that: The inner wall of the connecting seat (7) is rotatably connected with a gear one (12), and the outer walls on the opposite sides of the two limiting pins (9) are both fixedly connected with a rack one (13).

5. The heat-shrinkable tube type PLC micro optical splitter according to claim 4, characterized in that: The two rack ones (13) are both meshed with the gear one (12), the bottom inner wall of the connecting seat (7) is rotatably connected with a gear two (15), and the gear two (15) and the gear one (12) are connected through transmission shafts.

6. The heat-shrinkable tube type PLC micro optical splitter according to claim 5, characterized in that: The inner wall of the connecting seat (7) is slidably connected with a rack two (17), and the rack two (17) and the gear two (15) are meshed with each other.

7. The heat-shrinkable tube type PLC micro optical brancher according to claim 6, characterized in that: The bottom inner wall of the connecting seat (7) is fixedly connected with a volute spring (16), and one end of the transmission shaft of the gear two (15) is inserted into the volute spring (16).

8. The heat-shrinkable tube type PLC micro optical splitter according to claim 7, characterized in that: The outer wall of one side of the connecting seat (7) is provided with a circular groove, and the inner wall of the circular groove is slidably connected with a sliding column (8), one end of the sliding column (8) is fixedly connected on the rack two (17), and the top outer wall of the connecting seat (7) is fixedly connected with two symmetrically arranged rubber blocks (11).

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