Optical fiber distribution terminal

Abstract

The utility model belongs to the technical field of optical fibers, and discloses an optical fiber distribution terminal which comprises a terminal box, linearly distributed inlet holes are formed in the outer wall of the front side of the terminal box, a guide plate opposite to the inlet holes is fixedly installed on the front side of the bottom of an inner cavity of the terminal box, and a guide wheel is rotationally installed on the top of the guide plate. A base is fixedly installed at the bottom of the inner cavity of the terminal box and located on the rear side of the guide plate, a rolling rod is rotationally installed on the base, and when one end of the optical fiber penetrates through the penetrating pipe, then the end of the optical fiber is pinched and the rolling rod is rotated, so that the subsequent long section of the optical fiber is rolled and stored on the rolling rod; when the rolling rod rotates, due to the fact that the cross section of a hemispherical clamping block and the cross section of an arc-shaped clamping groove are both designed to be in a cambered surface shape, the hemispherical clamping block can be separated from the arc-shaped clamping groove under stress till the rolling rod stops rotating, and the hemispherical clamping block can be clamped into the arc-shaped clamping groove at the current position under the bounce of a first spring to limit rotation of the rolling rod and prevent the rolling rod from rotating. According to the design, the longer part of the optical fiber can be rolled and stored.

Description

Technical Field

[0001] The present application belongs to the field of optical fiber technology, and specifically relates to an optical fiber distribution terminal. Background Art

[0002] In recent years, with the vigorous development of FTTH (Fiber To The Home) and the implementation of the broadband China strategy, China's FTTH fiber-to-the-home industry has ushered in a period of rapid development. The development of FTTH abroad is highly regional, with Japan and South Korea developing the best, followed by North America, and Europe lagging behind. In the deployment of fiber-to-the-home, the Asia-Pacific region has always been in the world's leading position; and China, as one of the fastest growing economies in the world, has also attracted global attention for its deployment and development speed of FTTH fiber-to-the-home, and has already come to the forefront of the world.

[0003] When storing excess optical fiber, the optical fiber distribution terminal in the prior art generally rolls the optical fiber into a coil and places it in a terminal box. However, since the outer insulation of the optical fiber has a certain elasticity, it needs to be reinforced with tape or reinforcing ribs after rolling. However, the optical fiber fixed by this operation is still relatively messy. In addition, after the optical fiber is rolled and placed in the terminal box, for optical fibers with multiple connectors, it is not convenient for the installer to distinguish the optical fiber line corresponding to the pigtail connector when hot-melt connecting the pigtails. In order to solve this problem, a fiber optic distribution terminal is proposed. Utility Model Content

[0004] The purpose of the present application is to provide a fiber optic distribution terminal in order to solve the above-mentioned problems.

[0005] The technical solution adopted in the present application is as follows: A fiber optic distribution terminal comprises a terminal box, wherein the front outer wall of the terminal box is provided with linearly distributed inlet holes, a guide plate arranged opposite to the inlet holes is fixedly installed on the front side of the bottom of the inner cavity of the terminal box, a guide wheel is rotatably installed on the top of the guide plate, a base is fixedly installed on the bottom of the inner cavity of the terminal box and is located on the rear side of the guide plate, a rolling rod is rotatably installed on the base, a through tube is fixedly installed above the rolling rod, hemispherical clamping blocks are slidably installed on both sides of the part of the rolling rod rotating in the base, the inner cavity of the base is provided with arc-shaped clamping grooves adapted to the hemispherical clamping blocks and distributed circumferentially, and the hemispherical clamping blocks are clamped and installed in the arc-shaped clamping grooves.

[0006] A female chuck is fixedly installed on the top of the rolling rod, sleeve rods are fixedly installed on both sides of the female chuck, a reset rod is plugged into the top of the sleeve rod, a male chuck is fixedly installed on the inner side of the reset rod, wedge rods are fixedly installed on both sides of the bottom of the male chuck, a socket matched with the wedge rod is provided on the top of the female chuck, a locking block is slidably installed on the outside of the plug-in end of the wedge rod in the female chuck, and a joint flange arranged opposite to the base is fixedly installed on the rear side of the terminal box.

[0007] In a preferred embodiment, a protective cover is connected to the top of the terminal box by screws, and mounting plates are fixedly installed on both sides of the terminal box. The mounting plates can be connected to the optical fiber connection point by screws.

[0008] In a preferred embodiment, there are two guide wheels, and the bottoms of the two guide wheels are connected to the guide plate through bearings, and the outer rings of the guide wheels are concave in design.

[0009] In a preferred embodiment, a rotation groove adapted to the rolling rod is provided on the top of the base, and the inner end of the hemispherical clamping block is connected to the rolling rod via a No. 1 spring.

[0010] In a preferred embodiment, a slot adapted to the reset rod is provided at the top of the sleeve rod, the plug-in end of the reset rod is connected to the slot via a No. 2 spring, and the opposing surfaces of the female chuck and the male chuck are arc-shaped designs adapted to the outer wall of the optical fiber.

[0011] In a preferred embodiment, a pressing plate is fixedly mounted on the top of the male clamp, and a letter mark is provided on the top of the pressing plate.

[0012] In a preferred embodiment, a No. 3 spring is fixedly installed on the outer end of the locking block, the relative ends of the wedge rod and the locking block are both inclined, a slot matching the locking block is opened on the outer side of the wedge rod, and an unlocking rod inserted into the outer side of the female chuck is fixedly installed on the outer end of the locking block.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0014] 1. In the present application, two guide wheels are rotatably installed on the top of the guide plate. When the optical fiber is too long and needs to be rolled up and stored in the terminal box, one end of the optical fiber can be first passed through the inlet hole into the terminal box, and then the light beam is passed through between the two guide wheels. The light beam is guided and moved by the rolling between the two guide wheels. In addition, a base is provided on the rear side of the guide plate. After one end of the optical fiber passes through the guide wheel, the end of the optical fiber can continue to be passed through the tube on the rolling rod. Then, the end of the optical fiber is pinched and the rolling rod is rotated, so that the subsequent longer section of the optical fiber is rolled up and stored on the rolling rod. When the rolling rod rotates, the cross-sections of the hemispherical clamping block and the arc-shaped clamping groove are both arc-shaped designs, so that the hemispherical clamping block will be forced to detach from the arc-shaped clamping groove until the rolling rod stops rotating. The hemispherical clamping block will be clamped into the arc-shaped clamping groove at the current position under the rebound of the No. 1 spring to limit the rotation of the rolling rod and prevent it from rotating. This design can roll up and store the longer part of the optical fiber.

[0015] 2. In the present application, by providing a female chuck and a sleeve rod, after one end of the optical fiber passes through the tube and is rolled up on the rolling rod to complete the storage of a long section, the optical fiber end can be placed between the female chuck and the male chuck, and then the button with identification letters is pressed to make the wedge-shaped rods on both sides of the bottom of the male chuck inserted into the female chuck, and the locking block is squeezed to move outward to make way until the wedge-shaped rod is fully inserted into place so that the male chuck is close to the female chuck to clamp the optical fiber end, and the locking block encounters the card slot and is inserted into the card slot under the rebound of the No. 3 spring, thereby The male and female chucks fix the state of the optical fiber clamping. This design can fix the end of the optical fiber and identify it through the logo on the top of the plate, which is convenient for the installation master to perform subsequent hot-melt docking. In addition, since an unlocking rod is provided, when the optical fiber end needs to be taken out for hot-melt docking, the unlocking rod is pulled to drive the locking block to leave the slot, thereby releasing the plug-in fixation of the wedge rod. At this time, the No. 2 spring at the bottom of the reset rod rebounds and pushes the reset rod to move upward, thereby causing the male chuck to leave the top of the female chuck and release the clamping of the optical fiber end. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural stereogram of the present application;

[0017] Figure 2 A plan view of the attached structure on the base in this application;

[0018] Figure 3 It is a schematic diagram of the structure of the female chuck and the male chuck in this application.

[0019] Markings in the figure: 1-terminal box, 2-protective cover, 3-mounting plate, 4-entry hole, 5-guide plate, 6-guide wheel, 7-base, 8-rolling rod, 9-tube, 10-hemispherical clamping block, 11-arc-shaped slot, 12-female chuck, 13-sleeve rod, 14-reset rod, 15-male chuck, 16-press plate, 17-wedge rod, 18-locking block, 19-slot, 20-unlocking rod, 21-connector flange. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] Reference Figure 1 , 2 A fiber optic wiring terminal includes a terminal box 1, a protective cover 2 is connected to the top of the terminal box 1 by screws, mounting plates 3 are fixedly installed on both sides of the terminal box 1, and the mounting plates 3 can be connected to the fiber optic wiring by screws, and the front outer wall of the terminal box 1 is provided with linearly distributed inlet holes 4, and a guide plate 5 arranged opposite to the inlet hole 4 is fixedly installed on the front side of the bottom of the inner cavity of the terminal box 1, and a guide wheel 6 is rotatably installed on the top of the guide plate 5, and the number of the guide wheels 6 is two, and the bottoms of the two guide wheels 6 are connected to the guide plate 5 by bearings, and the outer ring of the guide wheel 6 is a concave design The bottom of the inner cavity of the terminal box 1 is located on the rear side of the guide plate 5 and is fixedly installed with a base 7. A rolling rod 8 is rotatably installed on the base 7. A rotating groove adapted to the rolling rod 8 is opened on the top of the base 7. A through pipe 9 is fixedly installed above the rolling rod 8. Hemispherical blocks 10 are slidably installed on both sides of the part of the rolling rod 8 rotating in the base 7. The inner end of the hemispherical block 10 is connected to the rolling rod 8 through a spring No. 1. The inner cavity of the base 7 is provided with an arc-shaped groove 11 adapted to the hemispherical block 10 and distributed circumferentially, and the hemispherical block 10 is clamped and installed in the arc-shaped groove 11.

[0022] By rotatably installing two guide wheels 6 on the top of the guide plate 5, when the optical fiber is too long and needs to be rolled up and stored in the terminal box 1, one end of the optical fiber can be first passed through the inlet hole 4 into the terminal box 1, and then the light beam is passed through between the two guide wheels 6, and the light beam is guided and moved by the rolling between the two guide wheels 6. In addition, a base 7 is set on the rear side of the guide plate 5. After one end of the optical fiber passes through the guide wheel 6, the end of the optical fiber can continue to be passed through the tube 9 on the rolling rod 8, and then the end of the optical fiber can be pinched to The head is turned and the winding rod 8 is rotated so that the subsequent longer section of the optical fiber is wound and stored on the winding rod 8. When the winding rod 8 rotates, since the cross-sections of the hemispherical clamping block 10 and the arc-shaped clamping groove 11 are both arc-shaped, the hemispherical clamping block 10 is forced to disengage from the arc-shaped clamping groove 11 until the winding rod 8 stops rotating. The hemispherical clamping block 10 will be clamped into the arc-shaped clamping groove 11 at the current position under the rebound of the No. 1 spring to limit the rotation of the winding rod 8 and prevent it from rotating. This design can roll up and store the longer section of the optical fiber.

[0023] Reference Figure 1 , 2 3. A female chuck 12 is fixedly installed on the top of the rolling rod 8, and sleeve rods 13 are fixedly installed on both sides of the female chuck 12. A reset rod 14 is plugged and installed on the top of the sleeve rod 13. A slot matched with the reset rod 14 is opened on the top of the sleeve rod 13. The plug-in end of the reset rod 14 is connected to the slot through a No. 2 spring, and a male chuck 15 is fixedly installed on the inner side of the reset rod 14.

[0024] The opposing surfaces of the female chuck 12 and the male chuck 15 are of an arc-shaped design that matches the outer wall of the optical fiber. A pressing plate 16 is fixedly installed on the top of the male chuck 15, and a letter logo is set on the top of the pressing plate 16. Wedge rods 17 are fixedly installed on both sides of the bottom of the male chuck 15. A jack that matches the wedge rod 17 is opened on the top of the female chuck 12. A locking block 18 is slidably installed on the outside of the plug-in end of the wedge rod 17 in the female chuck 12, and a No. 3 spring is fixedly installed on the outer end of the locking block 18. The opposing ends of the wedge rod 17 and the locking block 18 are both inclined in design. A slot 19 that matches the locking block 18 is opened on the outer side of the wedge rod 17, and an unlocking rod 20 that is plugged into the outside of the female chuck 12 is fixedly installed on the outer end of the locking block 18. A connector flange 21 that is arranged opposite to the base 7 is fixedly installed on the rear side of the terminal box 1.

[0025] By setting the female chuck 12 and the sleeve rod 13, when one end of the optical fiber passes through the tube 9 and is rolled up on the rolling rod 8 to complete the storage of a long section, the optical fiber end can be placed between the female chuck 12 and the male chuck 15, and then the button 16 with identification letters is pressed to make the wedge rods 17 on both sides of the bottom of the male chuck 15 inserted into the female chuck 12, and squeeze the locking block 18 to move outward to make way until the wedge rod 17 is fully inserted into place so that the male chuck 15 is close to the female chuck 12 to clamp the optical fiber end, and the locking block 18 encounters the card slot 19, and is inserted into the card slot 19 under the rebound of the No. 3 spring, so that The male chuck 15 and the female chuck 12 fix the state of the optical fiber clamping. This design can fix the end of the optical fiber and identify it through the mark on the top of the button 16, which is convenient for the installation master to perform subsequent hot-melt docking. In addition, since an unlocking rod 20 is provided, when it is necessary to take out the optical fiber end for hot-melt docking, the unlocking rod 20 is pulled to drive the locking block 18 to leave the card slot 19, thereby releasing the plug-in fixation of the wedge rod 17. At this time, the No. 2 spring at the bottom end of the reset rod 14 rebounds and pushes the reset rod 14 to move upward, thereby causing the male chuck 15 to leave the top of the female chuck 12 and release the clamping of the optical fiber end.

[0026] The implementation principle of the embodiment of the present application is:

[0027] After the fiber optic cable is completely unthreaded, the optical fiber optic cable 10 is automatically unthreaded and the optical fiber optic cable 10 is automatically unthreaded.

[0028] After one end of the optical fiber passes through the tube 9 and is rolled up on the rolling rod 8 to complete the storage of a long section, the optical fiber end can be placed between the female clamp 12 and the male clamp 15, and then the button 16 with identification letters is pressed to make the wedge rods 17 on both sides of the bottom of the male clamp 15 inserted into the female clamp 12, and the locking block 18 is squeezed to move outward to make way until the wedge rod 17 is fully inserted into place so that the male clamp 15 is close to the female clamp 12 to clamp the optical fiber end, and the locking block 18 encounters the card slot 19 and is inserted into the card slot 19 under the rebound of the No. 3 spring, thereby locking the male clamp 15 and the female clamp 12. The female chuck 12 fixes the clamping state of the optical fiber. This design can fix the end of the optical fiber and can be identified by the mark on the top of the button 16, which is convenient for the installation master to perform subsequent hot-melt docking. In addition, since an unlocking rod 20 is provided, when it is necessary to take out the optical fiber end for hot-melt docking, the unlocking rod 20 is pulled to drive the locking block 18 to leave the slot 19, thereby releasing the plug-in fixation of the wedge rod 17. At this time, the No. 2 spring at the bottom end of the reset rod 14 rebounds and pushes the reset rod 14 to move upward, so that the male chuck 15 leaves the top of the female chuck 12 and releases the clamping of the optical fiber end.

[0029] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An optical fiber distribution terminal, comprising a terminal box (1), characterized in that: The front outer wall of the terminal box (1) is provided with inlet holes (4) distributed in a linear manner, a guide plate (5) arranged opposite to the inlet hole (4) is fixedly installed on the front side of the bottom of the inner cavity of the terminal box (1), a guide wheel (6) is rotatably installed on the top of the guide plate (5), a base (7) is fixedly installed on the bottom of the inner cavity of the terminal box (1) and located on the rear side of the guide plate (5), a rolling rod (8) is rotatably installed on the base (7), a through pipe (9) is fixedly installed above the rolling rod (8), hemispherical clamping blocks (10) are slidably installed on both sides of the part of the rolling rod (8) rotating in the base (7), the inner cavity of the base (7) is provided with arc-shaped clamping grooves (11) adapted to the hemispherical clamping blocks (10) and distributed in a circumferential direction, and the hemispherical clamping blocks (10) are clamped and installed in the arc-shaped clamping grooves (11); A female chuck (12) is fixedly mounted on the top of the rolling rod (8), sleeve rods (13) are fixedly mounted on both sides of the female chuck (12), a reset rod (14) is plugged and mounted on the top of the sleeve rod (13), a male chuck (15) is fixedly mounted on the inner side of the reset rod (14), wedge rods (17) are fixedly mounted on both sides of the bottom of the male chuck (15), a plug hole matching the wedge rod (17) is provided on the top of the female chuck (12), a locking block (18) is slidably mounted on the outer side of the plug-in end of the wedge rod (17) in the female chuck (12), and a joint flange (21) arranged opposite to the base (7) is fixedly mounted on the rear side of the terminal box (1).

2. An optical fiber distribution terminal as claimed in claim 1, characterized in that: The top of the terminal box (1) is connected to a protective cover (2) by means of screws, and mounting plates (3) are fixedly mounted on both sides of the terminal box (1), and the mounting plates (3) can be connected to the optical fiber connection point by means of screws.

3. An optical fiber distribution terminal as claimed in claim 1, characterized in that: There are two guide wheels (6), and the bottoms of the two guide wheels (6) are connected to the guide plate (5) via bearings. The outer rings of the guide wheels (6) are of concave design.

4. The optical fiber distribution terminal according to claim 1, characterized in that: A rotation groove adapted to the rolling rod (8) is provided on the top of the base (7), and the inner end of the hemispherical clamping block (10) is connected to the rolling rod (8) via a No. 1 spring.

5. The optical fiber distribution terminal according to claim 1, characterized in that: A slot matching the reset rod (14) is provided at the top of the sleeve rod (13); the plug-in end of the reset rod (14) is connected to the slot via a No. 2 spring; and the opposing surfaces of the female clamp (12) and the male clamp (15) are of an arc-shaped design matching the outer wall of the optical fiber.

6. The optical fiber distribution terminal according to claim 1, characterized in that: A pressing plate (16) is fixedly mounted on the top of the male clamp (15), and a letter mark is provided on the top of the pressing plate (16).

7. The optical fiber distribution terminal according to claim 1, characterized in that: A No. 3 spring is fixedly mounted on the outer end of the locking block (18); the opposite ends of the wedge-shaped rod (17) and the locking block (18) are both inclined; a slot (19) matching the locking block (18) is provided on the outer side of the wedge-shaped rod (17); and an unlocking rod (20) plugged into the outer side of the female chuck (12) is fixedly mounted on the outer end of the locking block (18).

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