Drawing type optical fiber distribution frame

Abstract

The utility model discloses a draw-out type fiber distribution frame, relates to the fiber distribution frame technology field, the draw-out type fiber distribution frame provided by the utility model comprises a box body and a tray, an accommodation space is formed in the box body, two opposite side walls of the box body are respectively provided with a first opening and a second opening which are communicated with the accommodation space, and the tray is arranged on the first opening and the second opening. A locking part is arranged on the inner bottom wall of the box body; the tray is located in the containing space and slidably connected with the inner wall of the box body, an elastic locking device is arranged on the bottom wall of the tray, and the tray slidably extends out of the first opening; and when the tray partially extends out of the opening, the elastic locking device is elastically clamped with the locking part. According to the utility model, through arranging the elastic locking device on the bottom wall of the tray, when the tray is pulled out of the box body for wiring operation such as plugging of an optical fiber connector, the tray can be prevented from shaking back and forth because the elastic locking device is elastically clamped with the locking part, and the problem that wiring operation is inconvenient due to poor fixity after the tray is pulled out is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber distribution frame technical field, especially relates to a pull-out type optical fiber distribution frame. BACKGROUND

[0002] Optical fiber distribution frame (ODF, Optical Distribution Frame) is the key equipment for optical cable terminal connection, scheduling and management in optical communication system, is mainly used for realizing the fixed, distribution and jumper storage function of optical fiber line etc.

[0003] In the related art, in order to facilitate the operation such as distribution in the inside of optical fiber distribution frame, the optical fiber distribution frame is set to pull-out type, that is, the optical fiber distribution frame includes the box body with front and rear ends opening and the tray sliding in the box body, when the operation such as distribution of jumper etc.

[0004] However, during the operation of distribution, the optical fiber connector is often plugged and unplugged, at this time, a certain pushing force is applied to the tray, so that the tray shakes back and forth, which hinders the operation such as distribution, that is, the tray is poor in fixation after being pulled out, and the operation of distribution is inconvenient. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a pull-out type optical fiber distribution frame, which aims to solve the problem of poor fixation of the tray after being pulled out and inconvenient operation of distribution.

[0006] In order to achieve the above purpose, the pull-out type optical fiber distribution frame provided by the utility model includes a box body and a tray, the box body is formed with an accommodating space, the opposite two side walls of the box body are respectively formed with a first opening and a second opening communicated with the accommodating space, and the inner bottom wall of the box body is provided with a locking part, the tray is located in the accommodating space and is slidingly connected with the inner wall of the box body, the bottom wall of the tray is provided with an elastic locking device, and the tray can be slid from the first opening, when the tray is partially extended from the first opening, the elastic locking device is elastically clamped with the locking part.

[0007] In an embodiment, the bottom wall of the tray is provided with a mounting hole, the elastic locking device comprises a cylinder, a ball and a spring, the cylinder is formed with a containing cavity, one end of the cylinder is provided with an opening communicating with the containing cavity; the ball is limited in the containing cavity and can partially extend out of the opening; one end of the spring is in elastic abutment with the bottom wall of the containing cavity, the other end of the spring is in elastic abutment with the ball; the outer wall of the cylinder is connected with the inner wall of the mounting hole, the opening is arranged towards the bottom wall of the box, and the locking portion is a clamping hole; when the tray partially extends out of the first opening, the ball is clamped with the inner wall of the clamping hole.

[0008] In an embodiment, the outer wall of the cylinder is screwed with the inner wall of the mounting hole; or, the outer wall of the cylinder is fixedly connected with the periphery of the mounting hole.

[0009] In an embodiment, the bottom wall of the box is provided with a plurality of locking portions, the plurality of locking portions are symmetrically arranged about the center line of the box; and the bottom wall of the tray is provided with a plurality of elastic locking devices, the plurality of elastic locking devices are symmetrically arranged about the center line of the tray; the center line of the box and the center line of the tray are arranged in overlap; when the tray partially extends out of the first opening, each elastic locking device corresponds to and elastically clamps with a locking portion.

[0010] In an embodiment, the bottom wall of the tray is provided with a non-removable screw, and the bottom wall of the box is provided with a limiting hole; when the tray is retracted into the containing space, the non-removable screw is screwed with the inner wall of the limiting hole.

[0011] In an embodiment, one end of the tray away from the second opening is formed with a bending portion, and the bending portion is arranged away from the bottom wall of the box.

[0012] In an embodiment, the pull-out type optical fiber distribution frame further comprises a first door plate hinged to the bottom wall of the box and closing the first opening, the first door plate is provided with a first lock catch, the inner wall of the first opening is provided with a first clamping plate, and when the first door plate closes the first opening, the first lock catch is clamped with the first clamping plate; the pull-out type optical fiber distribution frame further comprises a second door plate hinged to the bottom wall of the box and closing the second opening, the second door plate is provided with a second lock catch, the inner wall of the second opening is provided with a second clamping plate, and when the second door plate closes the second opening, the second lock catch is clamped with the second clamping plate.

[0013] In an embodiment, the pull-out type optical fiber distribution frame further comprises a perspective piece, the first door plate is provided with a first window, and the perspective piece is connected with the periphery of the first window and closes the first window.

[0014] In an embodiment, the box further has a first sidewall and a second sidewall arranged oppositely, the top wall of the box is provided with a second window, and the first sidewall and the second sidewall are respectively located at two sides of the second window; the box is further provided with a crossbeam, the crossbeam extends along the direction from the first sidewall to the second sidewall and connects opposite two side edges of the second window; the tray is further provided with an adapter mounting plate extending along the direction from the first sidewall to the second sidewall, the adapter mounting plate is provided with an adapter mounting hole facing the first opening; when the tray is retracted into the containing space, the adapter mounting plate is located below the crossbeam.

[0015] In an embodiment, the sidewall of the first opening is provided with a first wire inlet, and the inner periphery of the first wire inlet is provided with a first wire protection tooth; the sidewall of the second opening is provided with a second wire inlet, and the inner periphery of the second wire inlet is provided with a second wire protection tooth; one end of the tray away from the second opening is provided with a wire arranging ring, and the wire arranging ring is arranged opposite to the first wire inlet when the tray is retracted into the containing space.

[0016] The box is further provided with a crossbeam, the crossbeam extends along the direction from the first sidewall to the second sidewall and connects opposite two side edges of the second window; the tray is further provided with an adapter mounting plate extending along the direction from the first sidewall to the second sidewall, the adapter mounting plate is provided with an adapter mounting hole facing the first opening; when the tray is retracted into the containing space, the adapter mounting plate is located below the crossbeam. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0018] Figure 1 The structure diagram of one embodiment of the pull-out optical fiber distribution frame provided by the present application is shown.

[0019] Figure 2 Structure diagram of another embodiment of the pull-out type optical fiber distribution frame provided by the utility model;

[0020] Figure 3 For Figure 2 The side view of the pull-out type optical fiber distribution frame;

[0021] Figure 4 For Figure 2 The bottom view of the pull-out type optical fiber distribution frame;

[0022] Figure 5 For Figure 1 The bottom view of the pull-out type optical fiber distribution frame;

[0023] Figure 6 For Figure 2 Structure diagram of an embodiment of the elastic locking device;

[0024] Figure 7 For Figure 2 Structure diagram of another embodiment of the elastic locking device.

[0025] Explanation of the reference signs:

[0026] 1000, the pull-out type optical fiber distribution frame;

[0027] 1, the box; 1a, the containing space; 1b, the clamping hole; 1c, the limiting hole; 1d, the second window; 1f, the first wire inlet; 1g, the second wire inlet; 11, the first side wall; 12, the second side wall; 13, the first door plate; 131, the first lock catch; 132, the see-through piece; 13a, the first window; 14, the second door plate; 141, the second lock catch; 15, the first clamping plate; 16, the second clamping plate; 17, the crossbeam; 171, the folded edge; 18, the first wire protection tooth; 19, the second wire protection tooth;

[0028] 2, the tray; 2a, the mounting hole; 21, the elastic locking device; 211, the barrel; 211a, the containing cavity; 211b, the opening; 212, the ball; 213, the spring; 22, the loose screw; 23, the bent part; 24, the adapter mounting plate; 24a, the adapter mounting hole; 25, the wire management ring.

[0029] The utility model realizes the purpose, functional characteristics and advantages, which will be further illustrated in connection with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present utility model.

[0031] It should be noted that if the embodiments of the present utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0032] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present utility model.

[0033] The present utility model provides a kind of pull-out type optical fiber distribution frame 1000.

[0034] Please refer to Figure 1 to Figure 2 In an embodiment of the present utility model, the pull-out type optical fiber distribution frame 1000 includes a box body 1 and a tray 2, a containing space 1a is formed in the box body 1, a first opening and a second opening are formed on the opposite two side walls of the box body 1 and communicate with the containing space 1a, and a locking portion is arranged on the inner bottom wall of the box body 1; the tray 2 is located in the containing space 1a and is in sliding connection with the inner wall of the box body 1, an elastic locking device 21 is arranged on the bottom wall of the tray 2, and the tray 2 can slide out of the first opening; when the tray 2 partially extends out of the first opening, the elastic locking device 21 is elastically clamped with the locking portion.

[0035] In the embodiment, the drawer type optical fiber distribution frame 1000 comprises a box 1 and a tray 2. The box 1 has a bottom wall and left and right side walls respectively arranged at the left and right sides of the bottom wall. Optionally, a cover plate can be arranged on the top of the box 1, so that a containing space 1a is formed in the box 1. A first opening is formed at the front end of the box 1, and a second opening is formed at the rear end of the box 1. The tray 2 is slidably arranged in the containing space 1a in the box 1 and can be drawn out of or pushed into the containing space 1a from the first opening. The tray 2 also has left and right side walls. Optionally, drawer guide rails can be arranged on the left and right side walls of the tray 2. The drawer guide rails comprise two tracks connected by balls 212 or rollers. One track is arranged on the inner side wall of the box 1, and the other track is arranged on the outer side wall of the tray 2. Thus, the sliding connection between the tray 2 and the box 1 is achieved through the guide rails. Optionally, linear ribs can be protrudingly arranged on the left and right outer side walls of the tray 2, and linear grooves can be correspondingly arranged on the left and right inner side walls of the box 1. The linear ribs are limited in the linear grooves and are in sliding connection with the inner walls of the linear grooves.

[0036] An elastic locking device 21 is arranged on the bottom wall of the tray 2, and a locking portion is arranged on the inner bottom wall of the box 1. When the tray 2 is partially drawn out of the first opening, the elastic locking device 21 is elastically clamped with the locking portion. In the embodiment, in order to avoid the elastic locking device 21 occupying the wiring space on the tray 2, the elastic locking device 21 is arranged on the bottom wall of the tray 2 close to one end of the second opening. The elastic locking device 21 is arranged at a central position on the bottom wall of the box 1. The projection position of the elastic locking device 21 on the bottom wall of the box 1 can be set according to the tray 2 being partially drawn out of the first opening. In actual application, it can be flexibly adjusted, and the embodiment does not limit this.

[0037] Optionally, when the bottom wall of the tray 2 is arranged close to the bottom wall of the box 1, the locking portion can be arranged as a groove or a hole. Correspondingly, the elastic locking device 21 can be arranged as an elastic piece protruding from the bottom wall of the box 1. The elastic piece can be made of high-elastic metal or high-strength and high-elastic engineering plastic. During the drawing process, the elastic piece is in sliding abutment with the bottom wall of the box 1 until the tray 2 is drawn out to a preset position. Then, the elastic piece is clamped in the groove or the hole to achieve temporary locking. When the tray 2 is pushed into the containing space 1a, the elastic piece is deformed by being pressed, so as to be separated from the groove or the hole under the action of the pushing force to achieve unlocking. Optionally, when the bottom wall of the tray 2 is arranged to have a sufficient distance from the bottom wall of the box 1, the locking portion can be arranged as a protruding rib or a boss. After the tray 2 is drawn out to the preset position, the protruding rib or the boss can be clamped with the elastic piece.

[0038] The embodiment sets the elastic locking device 21 on the bottom wall of the tray 2, when the tray 2 is pulled out of the box 1 to perform the wiring operation of the plug-in optical fiber connector, the elastic locking device 21 is elastically clamped with the locking part, the tray 2 can be prevented from shaking back and forth, and the problem that the tray 2 is not fixed after being pulled out and is inconvenient for wiring operation is solved. Moreover, the elastic locking device 21 is locked through the elasticity of the elastic locking device 21, when the wiring operation is completed, the tray 2 can be pushed into the box 1 by increasing the force, and the complicated unlocking operation is not needed, so that the unlocking of the tray 2 is more convenient and faster.

[0039] Further, please refer to Figure 2 、 Figure 4 and Figure 6 In an embodiment of the utility model, the bottom wall of the tray 2 is provided with a mounting hole 2a, the elastic locking device 21 includes a cylinder body 211, a ball 212 and a spring 213, the cylinder body 211 is formed with a containing cavity 211a, one end of the cylinder body 211 is provided with an opening 211b communicated with the containing cavity 211a; the ball 212 is limited in the containing cavity 211a and can partially extend out of the opening 211b; one end of the spring 213 is elastically abutted with the bottom wall of the containing cavity 211a, the other end of the spring 213 is elastically abutted with the ball 212; the outer wall of the cylinder body 211 is connected with the inner wall of the mounting hole 2a, the opening 211b is arranged towards the bottom wall of the box 1, and the locking part is a clamping hole 1b; when the tray 2 partially extends out of the first opening, the ball 212 is clamped with the inner wall of the clamping hole 1b.

[0040] In the embodiment, the elastic locking device 21 comprises a barrel 211, a ball 212 and a spring 213, the barrel 211 is internally formed with a receiving cavity 211a which can be provided as a cylindrical channel, one end of the barrel 211 is provided with an opening 211b which is in communication with the receiving cavity 211a, the opening 211b is a circular through hole, and the diameter of the opening 211b is smaller than the diameter of the ball 212, so that the ball 212 can be limited in the receiving cavity 211a and partially extend out of the opening 211b, and the receiving cavity 211a is reserved with space for accommodating the spring 213 and allowing the ball 212 to retract, one end of the spring 213 is in elastic abutment with the bottom wall of the receiving cavity 211a, and the other end of the spring 213 is in elastic abutment with the ball 212, in order to install the elastic locking device 21, the bottom wall of the tray 2 is provided with a mounting hole 2a, the outer wall of the barrel 211 is inserted into the mounting hole 2a and connected with the inner wall of the mounting hole 2a, the locking part is a clamping hole 1b which is arranged below the movement path of the elastic locking device 21 when being pulled out, during pulling out the tray 2 and when the tray 2 is retracted into the receiving space 1a, the ball 212 is in elastic abutment with the bottom wall of the box 1, the bottom wall of the box 1 pushes the ball 212 into the receiving cavity 211a and compresses the spring 213, when the tray 2 is pulled out to a preset position, the spring 213 drives the ball 212 to partially extend out of the opening 211b, so that the ball 212 is clamped with the inner wall of the clamping hole 1b, thereby realizing temporary locking, the elastic locking device 21 of the embodiment is in rolling friction with the bottom wall of the box 1 through the ball 212, compared with sliding friction, the wear of rolling friction is smaller, thereby prolonging the service life of the elastic locking device 21, the barrel 211 can accommodate the spring 213 and the ball 212, so that the spring 213 can be protected, the risk of the spring 213 being eroded by external force or stains is reduced, and the service life of the elastic locking device 21 is further prolonged.

[0041] Further, please refer to Figure 6 to Figure 7 In an embodiment of the utility model, the outer wall of the barrel 211 is screwed with the inner wall of the mounting hole 2a, or the outer wall of the barrel 211 is fixedly connected with the periphery of the mounting hole 2a.

[0042] In the embodiment, in order to strengthen the connection strength of the elastic locking device 21 and the tray 2, the elastic locking device 21 and the tray 2 are fixedly connected, the outer wall of the barrel 211 is fixedly connected with the periphery of the mounting hole 2a, and the outer wall of the barrel 211 can be welded or bonded with the periphery of the mounting hole 2a, considering that the elastic locking device 21 can be abraded and the locking performance can be reduced after long-term use, the elastic locking device 21 and the tray 2 of the embodiment can also be detachably connected, the outer wall of the barrel 211 is screwed with the inner wall of the mounting hole 2a, the outer wall of the barrel 211 is provided with external threads, and the inner wall of the mounting hole 2a is provided with internal threads matched with the external threads, so that the abraded elastic locking device 21 can be replaced, and the locking performance is ensured.

[0043] Further, please refer to Figure 4 and Figure 5 In an embodiment of the present application, the bottom wall of the box body 1 is provided with a plurality of locking portions, the plurality of locking portions are symmetrically arranged about the center line of the box body 1; and the bottom wall of the tray 2 is provided with a plurality of elastic locking devices 21, the plurality of elastic locking devices 21 are symmetrically arranged about the center line of the tray 2; the center line of the box body 1 and the center line of the tray 2 are arranged in an overlapping manner; and when the tray 2 partially extends out of the first opening, each elastic locking device 21 is elastically clamped with a locking portion.

[0044] In the embodiment, considering that the elastic locking device 21 needs to bear a certain thrust force when being unlocked, in order to make the tray 2 bear force uniformly and prevent uneven wear of the guide rail or straight-line rib between the tray 2 and the box body 1 caused by uneven force, the bottom wall of the box body 1 is provided with a plurality of locking portions, the plurality of locking portions are symmetrically arranged about the center line of the box body 1, and the bottom wall of the tray 2 is provided with a plurality of elastic locking devices 21, the plurality of elastic locking devices 21 are symmetrically arranged about the center line of the tray 2, wherein the center line of the box body 1 and the center line of the tray 2 are arranged in an overlapping manner. And when the tray 2 partially extends out of the first opening, each elastic locking device 21 is elastically clamped with a locking portion. In this way, the uniform force of the tray 2 can be guaranteed, the process of pushing the tray 2 when being unlocked is kept stable, and uneven wear of the guide rail or straight-line rib is avoided.

[0045] Further, please refer to Figure 1 、 Figure 3 and Figure 4 In an embodiment of the present application, the bottom wall of the tray 2 is provided with a detachable screw 22, and the bottom wall of the box body 1 is provided with a limiting hole 1c, when the tray 2 is retracted into the accommodating space 1a, the detachable screw 22 is screwed with the inner wall of the limiting hole 1c.

[0046] In the embodiment, in order to ensure that the tray 2 and the box body 1 are locked when the tray 2 is retracted into the accommodating space 1a, prevent the tray 2 from automatically sliding out due to improper placement, and avoid the risk of damage to internal optical fibers, adapters and other parts caused by fiber jumping, the bottom wall of the tray 2 of the present application is provided with a detachable screw 22, the bottom wall of the box body 1 is provided with a limiting hole 1c, the inner wall of the limiting hole 1c is provided with a thread, and when the tray 2 is retracted into the accommodating space 1a, the detachable screw 22 is screwed with the thread in the limiting hole. In this way, temporary locking of the tray 2 when retracted into the accommodating space 1a can be achieved. The detachable screw 22 does not need to be disassembled from the tray 2, and the detachable screw 22 is simple and convenient to unlock, and occupies less space.

[0047] Further, please refer to Figure 1 In an embodiment of the present application, the end of the tray 2 away from the second opening is formed with a bending portion 23, and the bending portion 23 is arranged along the bottom wall of the box body 1.

[0048] In the embodiment, in order to facilitate manual grabbing of the tray 2 when the tray 2 is pulled out, a bending part 23 is arranged at an end of the tray 2 away from the second opening, that is, an end of the tray 2 close to the first opening is provided with the bending part 23, and the bending part 23 can be formed by bending the bottom wall of the tray 2 in a direction away from the bottom wall of the cabinet 1, so as to facilitate manual grabbing, and has the beneficial effects of simple manufacturing, small space occupation, and no influence on optical fiber wiring.

[0049] Further, referring to Figure 1 and Figure 2 In an embodiment of the utility model, the pull-out type optical fiber distribution frame 1000 further comprises a first door plate 13, the first door plate 13 is hinged to the bottom wall of the cabinet 1 and closes the first opening, the first door plate 13 is provided with a first lock catch 131, the inner wall of the first opening is provided with a first clamping plate 15, when the first door plate 13 closes the first opening, the first lock catch 131 is clamped with the first clamping plate 15; the pull-out type optical fiber distribution frame 1000 further comprises a second door plate 14, the second door plate 14 is hinged to the bottom wall of the cabinet 1 and closes the second opening, the second door plate 14 is provided with a second lock catch 141, the inner wall of the second opening is provided with a second clamping plate 16, when the second door plate 14 closes the second opening, the second lock catch 141 is clamped with the second clamping plate 16.

[0050] In the embodiment, considering that in the optical fiber distribution room, in order to save the floor space, a plurality of pull-out optical fiber distribution frames 1000 need to be stacked in the cabinet, the first opening and the second opening are respectively located on the two sides of the cabinet to facilitate the distribution operation, if the first opening and the second opening are directly and openly arranged, the internal optical fibers are easily damaged or dust enters, therefore, the first door plate 13 is arranged at the first opening in the embodiment, the first door plate 13 is hinged to the bottom plate of the box body 1, the first door plate 13 can be rotatably closed or opened to the first opening, meanwhile, the first lock catch 131 is arranged on the first door plate 13, the first lock catch 131 is arranged in a sliding unlocking mode, and the first clamping plate 15 is arranged on the inner side wall of the first opening and cooperates with the first lock catch 131 to realize temporary locking. Similarly, the second door plate 14 is arranged at the second opening in the embodiment, the second door plate 14 is hinged to the bottom plate of the box body 1, the second door plate 14 can be rotatably closed or opened to the second opening, meanwhile, the second lock catch 141 is arranged on the second door plate 14, the second lock catch 141 is arranged in a sliding unlocking mode, and the second clamping plate 16 is arranged on the inner side wall of the second opening and cooperates with the second lock catch 141 to realize temporary locking. In this way, when the wire adjustment operation is not needed, the tray 2 and the internal optical fibers are contained in the containing space 1a in the box body 1, and the first door plate 13 and the second door plate 14 respectively close the two end openings of the box body 1, the bottom plate of the upper pull-out optical fiber distribution frame 1000 closes the top of the lower pull-out optical fiber distribution frame 1000, or a dry plate is separately arranged to close the top of the pull-out optical fiber distribution frame 1000, in this way, a relatively closed space is formed in the optical fiber distribution frame, dust is prevented from entering and the risk of damage to the internal optical fibers is reduced.

[0051] Further, referring to Figure 2 In an embodiment of the utility model, the pull-out optical fiber distribution frame 1000 further includes a perspective piece 132, a first window 13a is formed on the first door plate 13, and the perspective piece 132 is connected with the periphery of the first window 13a and closes the first window 13a.

[0052] In the embodiment, the pull-out optical fiber distribution frame further includes a perspective piece 132, a first window 13a is formed on the first door plate 13, and the perspective piece 132 is connected with the periphery of the first window 13a and closes the first window 13a, the perspective piece 132 can be made of transparent material, for example, transparent acrylic material or transparent polyester fiber material. By arranging the perspective window and the perspective piece 132, the internal wiring condition can be observed without opening the pull-out optical fiber distribution box, the corresponding pull-out optical fiber distribution frame 1000 is opened after confirming that the wire adjustment operation is needed, in this way, the service life of the pull-out optical fiber distribution frame 1000 is improved and the risk of damage to the internal optical fibers is reduced.

[0053] Further, referring to Figure 1 to Figure 2In an embodiment of the utility model, the box 1 further has a first side wall 11 and a second side wall 12 arranged oppositely, the top wall of the box 1 is provided with a second window 1d, and the first side wall 11 and the second side wall 12 are respectively located on the two sides of the second window 1d; the box 1 is further provided with a crossbeam 17, the crossbeam 17 is arranged and connected to the opposite two side edges of the second window 1d in the direction from the first side wall 11 to the second side wall 12; the tray 2 is further provided with an adapter mounting plate 24 arranged in the direction from the first side wall 11 to the second side wall 12, and the adapter mounting plate 24 is provided with an adapter mounting hole 24a arranged towards the first opening; when the tray 2 is retracted into the accommodating space 1a, the adapter mounting plate 24 is located below the crossbeam 17.

[0054] In the embodiment, in order to expand the operation space, the top wall of the box 1 is provided with a second window 1d, and the size of the second window 1d can be adjusted according to requirements on the premise of meeting the structural strength, and the second window 1d can be up to the size of the entire top wall of the box 1. After the tray 2 is pulled out, since the top wall of the box 1 is provided with the second window 1d, the operator can adjust the optical fiber deeper in the tray 2 from the second window 1d, for example, the side of the second opening can be adjusted from the side of the first opening, without walking to the other side of the cabinet, thereby improving the convenience and flexibility of the line adjustment operation, and even if the tray 2 is not pulled out, there is still a certain space for the operator to stretch into the accommodating space 1a. Since the window arrangement will weaken the structural strength of the box 1 to a certain extent, in order to ensure the structural strength and bearing capacity of the box 1, the box 1 is further provided with a crossbeam 17, the crossbeam 17 is arranged and connected to the opposite two side edges of the second window 1d in the direction from the first side wall 11 to the second side wall 12, thereby strengthening the connection between the first side wall 11 and the second side wall 12 and the structural strength of the box 1. The tray 2 is further provided with an adapter mounting plate 24 arranged in the direction from the first side wall 11 to the second side wall 12, and the adapter mounting plate 24 is provided with an adapter mounting hole 24a arranged towards the first opening; when the tray 2 is retracted into the accommodating space 1a, the adapter mounting plate 24 is located below the crossbeam 17. Therefore, the crossbeam 17 can protect the adapter, and the crossbeam 17 will not block the optical fiber connectors at both ends of the adapter, thereby avoiding hindering the wiring operation. The crossbeam 17 can adopt a sheet metal structure, and the crossbeam 17 can be bent along the length direction to form a folded edge 171, thereby improving the rigidity and bending resistance of the crossbeam 17, and thereby increasing the bearing capacity of the box 1.

[0055] Further, please refer to Figure 2In the embodiment of the utility model, the side wall of the first opening is provided with a first wire inlet 1f, and the inner periphery of the first wire inlet 1f is provided with a first wire protection tooth 18; the side wall of the second opening is provided with a second wire inlet 1g, and the inner periphery of the second wire inlet 1g is provided with a second wire protection tooth 19; the end of the tray 2 away from the second opening is provided with a wire arranging ring 25, and the wire arranging ring 25 is arranged opposite to the first wire inlet 1f when the tray 2 is retracted into the accommodating space 1a.

[0056] In the embodiment, in order to provide an entrance for the optical fiber to enter the pull-out type optical fiber distribution frame 1000, the side wall of the first opening is provided with a first wire inlet 1f, and the side wall of the second opening is provided with a second wire inlet 1g, that is, the first wire inlet 1f and the second wire inlet 1g are respectively arranged at the front and rear ends of the first side wall 11 and the second side wall 12. At the same time, considering that the box body 1 is usually made of hard metal material, the optical fiber is easy to be damaged in the process of rubbing with the optical fiber, therefore, the first wire protection tooth 18 and the second wire protection tooth 19 are respectively arranged at the inner periphery of the first wire inlet 1f and the second wire inlet 1g, the first wire protection tooth 18 and the second wire protection tooth 19 are made of soft silica gel or rubber material, so that the optical fiber is in flexible contact with the box body 1, and the optical fiber is prevented from being damaged. And the first wire protection tooth 18 and the second wire protection tooth 19 are provided with linearly arranged tooth-shaped protrusions, which can comb the optical fiber and prevent the optical fiber from being scattered.

[0057] The above description is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A pull-out fiber distribution frame, characterized by, The pull-out fiber distribution frame comprises: a box (1) having an accommodating space (1a) formed therein, first and second openings respectively formed in opposite side walls of the box (1) and communicating with the accommodating space (1a), and a locking portion provided on an inner bottom wall of the box (1); and a tray (2) located in the accommodating space (1a) and slidably connected with the inner wall of the box (1), the bottom wall of the tray (2) being provided with an elastic locking device (21), and the tray (2) being slidably extended from the first opening; when the tray (2) is partially extended from the first opening, the elastic locking device (21) is elastically clamped with the locking portion.

2. The pull -type fiber distribution frame according to claim 1, wherein, The bottom wall of the tray (2) is provided with a mounting hole (2a), and the elastic locking device (21) comprises: a cylinder (211) having an accommodating cavity (211a) formed therein, one end of the cylinder (211) being provided with an opening (211b) communicating with the accommodating cavity (211a); a ball (212) being limited in the accommodating cavity (211a) and partially extended from the opening (211b); and a spring (213) having one end elastically abutting against the bottom wall of the accommodating cavity (211a) and the other end elastically abutting against the ball (212); the outer wall of the cylinder (211) is connected with the inner wall of the mounting hole (2a), the opening (211b) is arranged towards the bottom wall of the box (1), and the locking portion is a clamping hole (1b); when the tray (2) is partially extended from the first opening, the ball (212) is clamped with the inner wall of the clamping hole (1b).

3. The pull -type fiber distribution frame of claim 2, wherein, the outer wall of the cylinder (211) is screwed with the inner wall of the mounting hole (2a); or, the outer wall of the cylinder (211) is fixedly connected with the periphery of the mounting hole (2a).

4. The pull tray fiber organizer of claim 1, wherein, The bottom wall of the box (1) is provided with a plurality of the locking portions, and the plurality of the locking portions are symmetrically arranged about the center line of the box (1); the bottom wall of the tray (2) is provided with a plurality of the elastic locking devices (21), and the plurality of the elastic locking devices (21) are symmetrically arranged about the center line of the tray (2); and the center line of the box (1) is arranged to overlap the center line of the tray (2); when the tray (2) is partially extended from the first opening, each of the elastic locking devices (21) is elastically clamped with one of the locking portions.

5. The pull -type fiber organizer of claim 1, wherein, The bottom wall of the tray (2) is provided with a non-loose screw (22), and the bottom wall of the box (1) is provided with a limiting hole (1c); when the tray (2) is retracted into the accommodating space (1a), the non-loose screw (22) is screwed with the inner wall of the limiting hole (1c).

6. The pull -type fiber organizer of claim 1, wherein, The end of the tray (2) away from the second opening is formed with a bending portion (23), and the bending portion (23) is arranged along the bottom wall of the box (1) in a direction away from the box (1).

7. The pull tray fiber organizer of claim 1, wherein, The pull-out optical fiber distribution frame further comprises a first door plate (13) hinged to the bottom wall of the box body (1) and closing the first opening, the first door plate (13) is provided with a first lock catch (131), the inner wall of the first opening is provided with a first clamping plate (15), and the first lock catch (131) is clamped with the first clamping plate (15) when the first door plate (13) closes the first opening. The pull-out optical fiber distribution frame further comprises a second door plate (14) hinged to the bottom wall of the box body (1) and closing the second opening, the second door plate (14) is provided with a second lock catch (141), the inner wall of the second opening is provided with a second clamping plate (16), and the second lock catch (141) is clamped with the second clamping plate (16) when the second door plate (14) closes the second opening.

8. The pull -type fiber distribution frame of claim 7 wherein, The pull-out optical fiber distribution frame further comprises a perspective piece (132), the first door plate (13) is provided with a first window (13a), and the perspective piece (132) is connected with the periphery of the first window (13a) and closes the first window (13a).

9. The pull -type fiber organizer of claim 1, wherein, The box body (1) further has a first side wall (11) and a second side wall (12) arranged opposite to each other, and the top wall of the box body (1) is provided with a second window (1d), and the first side wall (11) and the second side wall (12) are located on the two sides of the second window (1d) respectively; The box body (1) is further provided with a cross beam (17), the cross beam (17) extends along the direction from the first side wall (11) to the second side wall (12) and connects the opposite two side edges of the second window (1d); The tray (2) is further provided with an adapter mounting plate (24) extending along the direction from the first side wall (11) to the second side wall (12), and the adapter mounting plate (24) is provided with an adapter mounting hole (24a) facing the first opening; When the tray (2) is retracted into the containing space (1a), the adapter mounting plate (24) is located below the cross beam (17).

10. The pull -type fiber distribution frame of claim 1 wherein, The side wall of the first opening is provided with a first wire inlet (1f), and the inner periphery of the first wire inlet (1f) is provided with a first wire protection tooth (18); The side wall of the second opening is provided with a second wire inlet (1g), and the inner periphery of the second wire inlet (1g) is provided with a second wire protection tooth (19); The end of the tray (2) away from the second opening is provided with a wire arranging ring (25), and the wire arranging ring (25) is arranged opposite to the first wire inlet (1f) when the tray (2) is retracted into the containing space (1a).

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