CN220626738U - Optical fiber distribution frame - Google Patents

Abstract

The utility model discloses an optical fiber distribution frame, which comprises a storage shell assembly, a tray assembly and an optical fiber module box, wherein the storage shell assembly comprises a shell and a limiting piece, the shell is provided with a storage cavity with an opening, the cavity wall of the storage cavity, which is close to the opening, is provided with the limiting piece, and the limiting piece is partially exposed in the storage cavity; the tray assembly is arranged on the cavity wall of the storage cavity in a sliding manner, a limiting groove is formed in the periphery of the tray assembly, a limiting part is arranged on the cavity wall of the storage cavity, and the limiting part is in limiting fit with the limiting groove so as to limit the tray assembly in a movable manner; a limiting hole is formed in one end of the tray assembly, and when the tray assembly completely slides out of the opening, the limiting piece abuts against the hole wall of the limiting hole; the fiber optic module box is arranged on the tray assembly to enter and exit along with the tray assembly relative to the opening. The tray subassembly is avoided to this scheme because roll-off leads to dropping completely.

Description

Optical fiber distribution frame

Technical Field

The utility model relates to the technical field of optical fiber connection equipment, in particular to an optical fiber distribution frame.

Background

The optical fiber distribution frame is used as distribution connection equipment between an optical cable and communication equipment and is mainly used in an optical fiber communication machine room. The optical fiber distribution frame has optical cable fixing and protecting functions, optical cable terminating functions and wire adjusting functions, and is an indispensable part in an information machine room.

In the related art, the optical fiber distribution frame comprises a storage shell assembly, a tray assembly and an optical fiber module box, wherein the storage shell assembly is provided with a storage cavity, the tray assembly is slidably arranged on the cavity wall of the storage cavity, the optical fiber module box is arranged on the tray assembly so as to slide along with the tray assembly relative to the storage cavity, and then the optical fiber module box can slide out of the storage cavity so as to be convenient for maintenance. However, when the tray assembly slides out of the accommodating cavity, the tray assembly may slide out and fall off completely due to inertia in the process of being pulled out due to the fact that the limiting part is lack of the cavity wall of the accommodating cavity to limit the sliding of the tray assembly, and damage is caused to the tray assembly and the fiber optic module box.

Disclosure of Invention

The utility model aims to provide an optical fiber distribution frame, which aims to realize limit control on the sliding stroke of a tray assembly, avoid the possibility of falling of the tray assembly caused by complete sliding, and ensure the use safety of the tray assembly and an optical fiber module box.

In order to achieve the above objective, the optical fiber distribution frame provided by the present utility model comprises a housing shell assembly, a tray assembly and an optical fiber module box, wherein the housing shell assembly comprises a housing shell and a limiting piece, the housing shell is provided with a housing cavity with an opening, the housing cavity wall close to the opening is provided with the limiting piece, and the limiting piece is partially exposed in the housing cavity; the tray assembly is arranged on the cavity wall of the storage cavity in a sliding manner and is in and out of the storage cavity relative to the opening, a limiting groove is formed in the periphery of the tray assembly, a limiting part is arranged on the cavity wall of the storage cavity, and the limiting part is in limiting fit with the limiting groove so as to movably limit the sliding of the tray assembly; a limiting hole is formed in one end of the tray assembly, the limiting hole extends along the sliding direction of the tray assembly, the limiting hole is used for the limiting piece to penetrate through, and when the tray assembly completely slides out of the opening, the limiting piece abuts against the hole wall of the limiting hole; the fiber optic module box is arranged on the tray assembly to enter and exit along with the tray assembly relative to the opening.

Optionally, the tray assembly is provided with a positioning hole, the shape of the positioning hole is configured as a strip-shaped hole, the strip-shaped hole extends along the sliding direction of the tray assembly, and the limiting piece movably penetrates through the positioning hole.

Optionally, the limiting piece comprises a pressing part, a connecting part and a fixing part, wherein the pressing part is abutted to the edge of one side opening of the positioning hole; one end of the connecting part is connected with the pressing part, and the connecting part penetrates through the positioning hole and the limiting hole and is in clearance fit with the positioning hole and the limiting hole; the fixing part is connected to one end of the connecting part, which is far away from the pressing part, so as to limit the sliding of the tray assembly along the length direction of the connecting part.

Optionally, the number of locating holes is two, two the locating holes are located accomodate the opposite sides of chamber wall, the spacing hole is equipped with two, two the spacing hole is located the opposite sides of tray subassembly, the locating part is equipped with two, one the locating part activity wears to establish and connects one the locating hole with one the spacing hole.

Optionally, the storage shell assembly further comprises a first guide rail, wherein the first guide rail is provided with a chute, and the first guide rail is arranged on the cavity wall of the storage cavity; the tray assembly comprises a tray body and a sliding block, the optical fiber module box is arranged on the tray body, the tray body is provided with the limiting holes, the sliding block is arranged on two sides of the tray body and is connected with the sliding groove in a sliding mode so as to drive the tray body to slide into and out of the opening.

Optionally, the tray assembly further includes a second guide rail, where the second guide rail is provided with the tray body, and the second guide rail is provided with the slider.

Optionally, the spacing portion is the elasticity cantilever, the surface of slider has been seted up the spacing groove, the elasticity cantilever with spacing groove lock joint cooperates, in order to right the slider is followed the slip of spout is spacing.

Optionally, the number of the elastic cantilevers is multiple, and the multiple elastic cantilevers are arranged at intervals along the length direction of the chute; the number of the limiting grooves is multiple, the limiting grooves are arranged at intervals along the length direction of the sliding block, and one elastic cantilever is in buckling fit with one limiting groove.

Optionally, two elastic cantilevers are provided, the two elastic cantilevers are respectively arranged on two opposite sides of the width direction of the sliding chute, two limiting grooves are provided, the two limiting grooves are respectively arranged on two opposite sides of the width direction of the sliding block, and one elastic cantilever is in buckling fit with one limiting groove.

Optionally, the tray assembly further includes at least two positioning rails, where the two positioning rails are disposed on the tray body at intervals to form the positioning groove in a surrounding manner, and the fiber optic module box is slidably disposed in the positioning groove; the positioning guide rail is also in buckling fit with the optical fiber module box so as to limit the sliding of the optical fiber module box.

Optionally, the positioning guide rail includes a rail body and two fastening arms, the rail body is disposed on the disc body, and forms the positioning groove with the rail body of the other positioning guide rail, the rail body is provided with a guide groove, and the fiber optic module box is provided with a guide block, and the guide block is slidably connected to the guide groove, so that the fiber optic module box is slidably disposed in the positioning groove; the two buckling arms extend outwards from one side of the rail body respectively, are arranged at intervals up and down to enclose and form buckling grooves, the optical fiber module box is provided with buckling tables, and the buckling tables are buckled in the buckling grooves.

According to the technical scheme, the tray assembly is slidably arranged on the cavity wall of the accommodating cavity, the optical fiber module box is arranged on the tray assembly to slide along with the tray assembly relative to the accommodating cavity, and then the optical fiber module box can be slid out of the accommodating cavity so as to be convenient to maintain.

It should be noted that, compared to the existing optical fiber distribution frame, when the tray assembly slides out of the storage cavity, if the sliding travel is not controlled, the tray assembly is likely to fall off due to complete sliding out, and damage is caused to the tray assembly and the optical fiber module box. According to the optical fiber distribution frame, the limiting part is further arranged on the cavity wall of the accommodating cavity and is in limiting fit with the limiting groove of the tray assembly, so that the tray assembly is used for movably limiting sliding, and the tray assembly is prevented from being completely pulled out of the accommodating cavity at one time to cause direct falling of the tray assembly, and the sliding stroke of the tray assembly is controlled. Then, even when taking out the opening of accomodating the chamber completely with the tray subassembly, the locating part is used for carrying out spacing support to the pore wall in the spacing hole of tray subassembly to avoid the tray subassembly when the roll-off, because gravity effect and direct dropping, then guarantee the safety in utilization to tray subassembly and fiber optic module box.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of an optical fiber distribution frame according to the present utility model;

FIG. 2 is an exploded view of the optical fiber distribution frame of FIG. 1;

FIG. 3 is a schematic view of the housing assembly of FIG. 2;

FIG. 4 is a schematic view of the first rail of FIG. 3;

FIG. 5 is a schematic view of the limiting member in FIG. 3;

FIG. 6 is a schematic view of the tray assembly of FIG. 2;

FIG. 7 is a schematic view of the second rail of FIG. 6;

FIG. 8 is a schematic view of the fiber optic module case of FIG. 6 mated with a positioning rail;

FIG. 9 is a schematic view of the positioning rail of FIG. 8 from a view;

FIG. 10 is a schematic view of the positioning rail of FIG. 8 from another perspective;

FIG. 11 is a schematic view of the fiber optic module case of FIG. 8.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Optical fiber distribution frame	33	Second guide rail
10	Storage shell assembly	331	Sliding block
				11	Shell body	3311	Limiting groove
111	Storage cavity	35	Positioning guide rail
				1111	An opening	351	Rail body
1113	Positioning hole	3511	Guide groove
				13	Limiting piece	3513	Connecting hole
131	Pressing part	353	Positioning groove
				133	Connecting part	357	Fastening arm
1331	Guide surface	359	Fastening groove
				135	Fixing part	37	Front cover plate
15	First guide rail	381	Hinge
				151	Sliding chute	383	Slide fastener
153	Limiting part	39	Wire arranging plate
				17	Upper cover plate	40	Optical fiber module box
19	Rear cover plate	41	Guide block
				30	Tray assembly	43	Fastening table
31	Disk body	45	First adapter
				311	Limiting hole	47	Second adapter

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Optical fiber communication is a communication mode in which optical waves are used as carrier waves and optical fibers are used as transmission media to transfer information from one place to another, and is called "wired" optical communication. At present, the optical fiber is far superior to the transmission of cable and microwave communication by the transmission frequency bandwidth, high anti-interference performance and small signal attenuation, and becomes a main transmission mode in world communication.

The optical fiber distribution frame is used as distribution connection equipment between an optical cable and communication equipment and is mainly used in an optical fiber communication machine room. The optical fiber distribution frame has optical cable fixing and protecting functions, optical cable terminating functions and wire adjusting functions, and is an indispensable part in an information machine room.

In the related art, the optical fiber distribution frame comprises a storage shell assembly, a tray assembly and an optical fiber module box, wherein the storage shell assembly is provided with a storage cavity, the tray assembly is slidably arranged on the cavity wall of the storage cavity, the optical fiber module box is arranged on the tray assembly so as to slide along with the tray assembly relative to the storage cavity, and then the optical fiber module box can slide out of the storage cavity so as to be convenient for maintenance. However, when the tray assembly slides out of the accommodating cavity, the tray assembly may slide out and fall off completely due to inertia in the process of being pulled out due to the fact that the limiting part is lack of the cavity wall of the accommodating cavity to limit the sliding of the tray assembly, and damage is caused to the tray assembly and the fiber optic module box.

In view of the above problems, the present disclosure proposes an optical fiber distribution frame 100, which aims to limit and control the sliding travel of the tray assembly, avoid the possibility of dropping the tray assembly 30 due to complete sliding, and ensure the use safety of the tray assembly 30 and the optical fiber module box 40.

Referring to fig. 1 to 3, and referring to fig. 6, in one embodiment of the present utility model, the optical fiber distribution frame 100 includes a housing case assembly 10, a tray assembly 30, and a fiber optic module case 40, the housing case assembly 10 includes a housing 11 and a limiting member 13, the housing 11 is provided with a housing cavity 111 having an opening 1111, a cavity wall of the housing cavity 111 near the opening 1111 is provided with the limiting member 13, and the limiting member 13 is partially exposed in the housing cavity 111; the tray assembly 30 is slidably disposed on a cavity wall of the accommodating cavity 111, and is moved in and out relative to the opening 1111, a limiting groove 3311 is disposed on a peripheral side of the tray assembly 30, a limiting portion 153 is disposed on the cavity wall of the accommodating cavity 111, and the limiting portion 153 is in limiting fit with the limiting groove 3311 to movably limit the sliding of the tray assembly 30; a limiting hole 311 is formed at one end of the tray assembly 30, the limiting hole 311 extends along the sliding direction of the tray assembly 30, the limiting hole 311 is provided for the limiting piece 13 to pass through, and when the tray assembly 30 slides out of the opening 1111 completely, the limiting piece 13 abuts against the hole wall of the limiting hole 311; the fiber optic module cassette 40 is disposed in the tray assembly 30 to move in and out with the tray assembly 30 relative to the opening 1111.

The storage case assembly 10 is also called a box assembly, stores the optical fiber module box 40, is provided with a hanging lug or other mounting parts, and is mounted on the wiring stand with other storage case assemblies 10 at intervals so as to realize wiring connection with communication equipment.

The housing 11 is provided with a housing cavity 111, and the housing cavity 111 is used for storing the fiber optic module box 40. For example, the housing 11 includes a bottom plate, a back cover plate 19 and an upper cover plate 17 which are correspondingly connected, wherein the back cover plate 19 is connected to the bottom plate by a hinge, and the back cover plate 19 is rotatably connected to the bottom plate. The rear cover plate 19 is provided with a sliding lock catch, the upper cover plate 17 is provided with a lock hole, and the side wall of the sliding lock catch is buckled with the lock hole when the rear cover plate 19 is rotationally closed.

The limiting member 13 is a fitting for limiting and supporting the hole wall of the limiting hole 311 of the tray assembly 30 by being installed in the positioning hole 1113, so as to prevent the tray assembly 30 from falling directly due to the gravity when completely sliding out. For example, the stopper 13 is selected to be a special bolt.

The tray assembly 30 is a tray body 31 assembly for carrying the fiber optic module case 40, and realizing the access of the fiber optic module case 40 to the storage cavity 111. The limiting portion 153 is used for limiting the sliding of the tray assembly 30 along the length direction of the storage cavity 111, for example, the cavity wall of the storage cavity 111 is provided with a plurality of grooves, the tray assembly 30 is provided with a boss, and the groove walls of the storage groove are sequentially used for limiting the sliding of the tray assembly 30 in a plurality of buckling manners through buckling cooperation of the grooves and the boss. Then in the process of pulling the tray assembly 30 to slide, the tray assembly 30 is locked and limited for a plurality of times, the confirmation and control of the sliding stroke of the tray assembly are realized, and the tray assembly 30 is prevented from being completely pulled out of the storage cavity 111 at one time to cause the tray assembly 30 to directly drop. In addition, the shape of the limiting hole 311 may be a bar hole, the limiting member 13 slides relatively along the length direction of the bar hole, and the length of the limiting hole 311 is greater than the length of the second rail 33. By properly controlling the length of the bar-shaped holes, the degree of downward tilting of the tray assembly 30 can be varied. In order to avoid direct collision between the end face of the hole wall of the limiting hole 311 and the limiting piece 13, a baffle plate can be arranged between the end face of the hole wall of the limiting hole 311 and the limiting piece.

The fiber optic cassette 40 is commonly used for the wiring connection of fiber optic cables to optical communications devices, with the adapter on the fiber optic cassette being connected by a jumper wire to thereby draw signals to the communications devices to perform the wiring function. For example, the front and rear openings 1111 of the fiber optic module cassette 40 are respectively provided with a first adapter 45 and a second adapter 47, wherein the first adapter 45 is a 6-port LC quad adapter or a duplex adapter, and the second adapter 47 is a 3-port MPO/MTP otoless SC type adapter. The distribution frame may be provided with 4 fiber optic module cassettes 40, with LC connector capacity of 96 cores for a single fiber optic module cassette 40.

In the technical scheme of the utility model, the tray assembly 30 is slidably arranged on the cavity wall of the accommodating cavity 111, and the fiber optic module box 40 is arranged on the tray assembly 30 so as to slide along with the tray assembly 30 relative to the accommodating cavity 111, so that the fiber optic module box 40 can slide out of the accommodating cavity 111 for maintenance.

It should be noted that, compared to the existing optical fiber distribution frame, when the tray assembly 30 slides out of the accommodating cavity 111, if the sliding travel is not controlled, the tray assembly 30 may fall due to the complete sliding, which may damage the tray assembly 30 and the optical fiber module box 40. The optical fiber distribution frame 100 of the present utility model has the structure that the cavity wall of the accommodating cavity 111 is further provided with the limiting portion 153, and the limiting portion 153 is in limiting fit with the limiting groove 3311 of the tray assembly 30 assembly, so as to perform movable limiting on the sliding of the tray assembly 30, avoid the direct falling of the tray assembly 30 caused by completely extracting the tray assembly 30 from the accommodating cavity 111 at one time, and realize the control of the sliding stroke of the tray assembly 30. Then, even when the tray assembly 30 is completely drawn out of the opening 1111 of the receiving cavity 111, the limiting member 13 is used for limiting and supporting the hole wall of the limiting hole 311 of the tray assembly 30, so as to prevent the tray assembly 30 from falling directly due to gravity when sliding out, and further ensure the use safety of the tray assembly 30 and the fiber optic module box 40.

Referring to fig. 3, in one embodiment of the present utility model, the tray assembly 30 is provided with a positioning hole 1113, the positioning hole 1113 is configured as a bar-shaped hole, the bar-shaped hole extends along the sliding direction of the tray assembly 30, and the limiting member 13 movably penetrates the positioning hole 1113.

In this embodiment, the positioning hole 1113 is configured as a bar-shaped hole, so that the mounting position of the limiting member 13 can be adjusted, and since the limiting member 13 positions and supports the tray assembly 30 completely sliding out of the opening 1111 of the receiving cavity 111, the inclination angle of the tray assembly 30 after completely sliding out can be changed, so as to facilitate maintenance of the wiring of the fiber module box 40. For example, the fiber optic module cartridge 40 is conveniently installed, pigtail fusion and management operations.

Referring to fig. 1 and 4, in one embodiment of the present utility model, the limiting member 13 includes a pressing portion 131, a connecting portion 133, and a fixing portion 135, wherein the pressing portion 131 abuts against an edge of the opening 1111 at one side of the positioning hole 1113; one end of the connecting portion 133 is connected to the pressing portion 131, and the connecting portion 133 penetrates through the positioning hole 1113 and the limiting hole 311, is in clearance fit with the positioning hole 1113, and is in clearance fit with the limiting hole 311; the fixing portion 135 is connected to an end of the connecting portion 133 away from the pressing portion 131, so as to limit the sliding of the tray assembly 30 along the length direction of the connecting portion 133.

The pressing portion 131 is used for being abutted against the hole wall edge of the positioning hole 1113, so as to realize pressing and fixing of the limiting piece 13 to the hole wall edge of the positioning hole 1113. For example, the pressing portion 131 is a cap, the end surface on the cap is provided with a cross groove, and the cap is pressed against the hole wall edge of the positioning hole 1113 by rotating and pressing the cross screw. The connecting portion 133 is configured to be in clearance fit with the positioning hole 1113 and in clearance fit with the limiting hole 311. The fixing portion 135 is used for limiting the sliding of the tray assembly 30 along the length direction of the connecting portion 133, so as to prevent one end of the tray assembly 30 from falling out from one end of the connecting portion 133.

In this embodiment, the special limiting member 13 is designed, and the special limiting member 13 is matched with the limiting hole 311 of the tray assembly 30, so as to realize limiting and fixing of the tray assembly 30.

Optionally, to further achieve clearance fit with the strip-shaped hole, the side wall of the connecting portion 133 is provided with a guiding surface for sliding fit with the hole wall of the strip-shaped hole, so that the limiting member 13 slides along the length direction of the strip-shaped hole better.

Referring to fig. 3 and 6, in one embodiment of the present utility model, two positioning holes 1113 are provided, two positioning holes 1113 are located on opposite sides of the cavity wall of the receiving cavity 111, two limiting holes 311 are provided on opposite sides of the tray assembly 30, two limiting members 13 are provided, and one limiting member 13 is movably connected to one positioning hole 1113 and one limiting hole 311 in a penetrating manner.

In this embodiment, when the tray assembly 30 slides out completely, the limiting members 13 on both sides of the storage case assembly 10 limit and support both sides of the tray assembly 30 respectively, which is beneficial to improving the supporting load and the supporting stability of the tray assembly 30.

Referring to fig. 3, and referring to fig. 5 to 7, in one embodiment of the present utility model, the housing assembly 10 further includes a first rail 15, the first rail 15 is provided with a chute 151, and the first rail 15 is provided on a cavity wall of the housing cavity 111; the tray assembly 30 includes a tray 31 and a slider 331, the fiber optic module box 40 is disposed on the tray 31, the tray 31 is provided with a limiting hole 311, and the slider 331 is disposed on two sides of the tray 31 and is slidably connected to the chute 151, so as to drive the tray 31 to slide into and out of the opening 1111.

In this embodiment, the tray body 31 of the tray assembly 30 is slidably connected with the first guide rail 15, so as to realize sliding in and out of the accommodating cavity 111, which is beneficial to realizing stable sliding of the tray body 31.

Optionally, the tray assembly 30 further includes a second rail 33, where the second rail 33 is disposed on the tray 31, and the second rail 33 is provided with the slider 331. The first rail 15 and the second rail 33 may be slidably connected, in which the first rail 15 is provided with a slider 331, the second rail 33 is provided with a chute 151, and then the first rail 15 and the second rail 33 are slidably connected by sliding the slider 331 in the chute 151. Compare in tray assembly's disk body and accomodate the chamber wall in chamber and carry out sliding contact, this embodiment has add second guide rail 33 and first guide rail 15 and has carried out the cooperation slip, is favorable to avoiding disk body 31 and accomodating the chamber wall in chamber 111 and wearing and tearing, is favorable to improving the life of part in turn.

Optionally, the tray assembly 30 further includes a front cover 37, and the front cover 37 is rotatably connected to the tray 31 by a hinge 381. The front cover plate 37 is provided with a slide lock catch 383, the upper cover plate 17 is provided with a lock hole, and when the front cover plate 37 is rotated to be closed, the side wall of the slide lock catch 383 is buckled with the lock hole.

Optionally, a wire arranging plate 39 is further disposed on the tray 31, and an opening is disposed on the wire arranging plate 39 and is used for binding the cables.

Referring to fig. 5 and 7, in an embodiment of the present utility model, the limiting portion 153 is an elastic cantilever, the limiting groove 3311 is formed on the outer surface of the sliding block 331, and the elastic cantilever is in snap fit with the limiting groove 3311 to limit the sliding of the sliding block 331 along the sliding groove 151.

In this embodiment, the sliding groove 151 of the first guide rail 15 is fastened and limited with the limiting groove 3311 of the sliding block 331 through an elastic cantilever, so that the tray assembly 30 slides a certain distance and is fastened and fixed on the cavity wall of the receiving cavity 111. If the tray assembly 30 is further slid, the pulling force of the tray assembly 30 is increased, so that the tray assembly 30 is prevented from being completely pulled out of the storage cavity 111 at one time to cause the tray assembly 30 to directly drop, and the sliding stroke of the tray assembly 30 is controlled.

Referring to fig. 5 and 7, in one embodiment of the present utility model, the number of the elastic cantilevers is plural, and the plural elastic cantilevers are spaced apart along the length direction of the chute 151; the number of the limiting grooves 3311 is plural, the limiting grooves 3311 are arranged at intervals along the length direction of the sliding block 331, and one elastic cantilever is in locking fit with one limiting groove 3311.

In this embodiment, a plurality of elastic cantilevers and a plurality of limiting grooves 3311 are respectively provided, and an elastic cantilever is engaged with a limiting groove 3311, so that the tray assembly 30 is limited by multiple buckling in the sliding process, and the stability of buckling is enhanced.

Referring to fig. 5 and fig. 7, in an embodiment of the utility model, two elastic cantilevers are provided, the two elastic cantilevers are respectively disposed on two opposite sides of the width direction of the sliding chute 151, two limiting grooves 3311 are provided, the two limiting grooves 3311 are respectively disposed on two opposite sides of the width direction of the sliding block 331, and one elastic cantilever is engaged with one limiting groove 3311.

In this embodiment, elastic cantilevers are respectively disposed at the upper and lower ends of the sliding chute 151, and are respectively engaged with the limiting grooves 3311 at the upper and lower ends of the sliding block 331, so as to enhance the fastening strength.

Referring to fig. 6 and 8, in one embodiment of the present utility model, the tray assembly 30 further includes at least two positioning rails 35, the two positioning rails 35 are disposed on the tray 31 at intervals to form the positioning groove 353, and the fiber optic module case 40 is slidably disposed in the positioning groove 353; the positioning rail 35 is further engaged with the fiber optic module case 40 to limit sliding of the fiber optic module case 40.

The positioning rail 35 is used for limiting and fixing the fiber optic module box 40, so as to fix the fiber optic module box 40 at a specified position of the tray 31.

In this embodiment, the two positioning rails 35 enclose to form a positioning slot 353, and the fiber module box 40 is slidably disposed in the positioning slot 353. The fiber optic module case 40 and the positioning rail 35 are engaged by fastening to limit the sliding movement of the fiber optic module case 40. After the lock limit of the positioning guide rail 35 to the fiber optic module box 40 is released, the fiber optic module box 40 can be removed from the tray 31 in a sliding drawing manner, so that maintenance can be performed on the fiber optic module box 40.

Referring to fig. 8 and 9, in one embodiment of the present utility model, the positioning rail 35 includes a rail body 351 and two fastening arms 357, the rail body 351 is disposed on the tray 31 and forms the positioning groove 353 by surrounding with the rail body 351 of the other positioning rail 35, the rail body 351 is provided with a guiding groove 3511, the optical fiber module case 40 is provided with a guiding block 41, and the guiding block 41 is slidably connected to the guiding groove 3511, so that the optical fiber module case 40 is slidably disposed in the positioning groove 353; the two fastening arms 357 extend outwards from one side of the rail 351, and are disposed at an upper-lower interval to form fastening slots 359, the fiber optic module case 40 is provided with fastening platforms 43, and the fastening platforms 43 are fastened to the fastening slots 359.

The rail body 351 is a support body for positioning the guide rail 35, for example, the rail body 351 is an i-shaped steel. Optionally, guide grooves 3511 are respectively formed on the left and right sides of the i-shaped steel, guide blocks 41 are respectively formed on the two sides of the fiber module box 40, and one guide block 41 is respectively slidably connected in the guide grooves 3511 of the left and right side rail bodies 351.

In this embodiment, the fiber optic module case 40 is slidably connected to the guide groove 3511 of the rail body 351 through the guide block 41, so that the fiber optic module case 40 can be slidably disposed in the positioning groove 353. The fiber optic module case 40 is further fastened and fixed with the fastening groove 359 of the rail body 351 through the fastening table 43, so as to limit the sliding of the fiber optic module case 40.

Alternatively, the left and right sides of the fiber optic module case 40 are respectively provided with a fastening table 43, and the two fastening tables 43 are arranged at a height, so that the fiber optic module case 40 can be fastened and fixed with the original fastening groove 359 even after the fiber optic module case 40 is turned over.

Optionally, the upper and lower ends of the rail body 351 are respectively provided with a connecting hole 3513, the connecting hole 3513 at the lower end realizes that the rail body 351 is fixed on the tray body 31, and the connecting hole 3513 at the upper end realizes that the rail body 351 is connected with the rail body 351 of another positioning guide rail 35, so that the positioning guide rail 35 with multiple layers up and down can fix the positioning of the multiple fiber module boxes 40.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. An optical fiber distribution frame, comprising:

the storage shell assembly comprises a shell and a limiting piece, wherein the shell is provided with a storage cavity with an opening, the cavity wall, close to the opening, of the storage cavity is provided with the limiting piece, and the limiting piece is partially exposed in the storage cavity;

the tray assembly is arranged on the cavity wall of the containing cavity in a sliding manner and enters and exits relative to the opening, a limiting groove is formed in the periphery of the tray assembly, a limiting part is arranged on the cavity wall of the containing cavity, and the limiting part is in limiting fit with the limiting groove and is used for movably limiting the sliding of the tray assembly; a limiting hole is formed in one end of the tray assembly, the limiting hole extends along the sliding direction of the tray assembly, the limiting hole is used for the limiting piece to penetrate through, and when the tray assembly completely slides out of the opening, the limiting piece abuts against the hole wall of the limiting hole; and

the fiber optic module box is arranged on the tray assembly and used for entering and exiting along with the tray assembly relative to the opening.

2. The optical fiber distribution frame of claim 1, wherein the tray assembly is provided with a positioning hole, the positioning hole is configured as a strip-shaped hole, the strip-shaped hole extends along the sliding direction of the tray assembly, and the limiting piece is movably arranged through the positioning hole.

3. The optical fiber distribution frame of claim 2, wherein the stop member comprises:

the pressing part is abutted against the edge of one side opening of the positioning hole;

the connecting part, one end of connecting part connect in support the pressure part, connecting part wears to establish the locating hole with spacing hole, with locating hole clearance fit, with spacing hole clearance fit _； And

The fixing part is connected to one end, far away from the pressing part, of the connecting part, so that the tray assembly is limited in sliding along the length direction of the connecting part.

4. The optical fiber distribution frame according to claim 2, wherein the number of the positioning holes is two, the two positioning holes are located on two opposite sides of the cavity wall of the accommodating cavity, the two limiting holes are located on two opposite sides of the tray assembly, the two limiting pieces are located on two opposite sides of the tray assembly, and one limiting piece is movably arranged to penetrate through and connect one positioning hole and one limiting hole.

5. The optical fiber distribution frame of any of claims 1-4, wherein the housing assembly further comprises a first rail, the first rail having a chute, the first rail being disposed on a cavity wall of the housing cavity;

the tray assembly comprises a tray body and a sliding block, the optical fiber module box is arranged on the tray body, the tray body is provided with the limiting holes, the sliding block is arranged on two sides of the tray body and is connected with the sliding groove in a sliding mode so as to drive the tray body to slide into and out of the opening.

6. The optical fiber distribution frame of claim 5, wherein the limiting portion is an elastic cantilever, the limiting groove is formed in the outer surface of the slider, and the elastic cantilever is in locking fit with the limiting groove so as to limit sliding of the slider along the sliding groove.

7. The optical fiber distribution frame of claim 6, wherein the number of the elastic cantilevers is plural, and the plural elastic cantilevers are arranged at intervals along the length direction of the chute; the number of the limiting grooves is multiple, the limiting grooves are arranged at intervals along the length direction of the sliding block, and one elastic cantilever is in buckling fit with one limiting groove.

8. The optical fiber distribution frame according to claim 6, wherein two elastic cantilevers are arranged, the two elastic cantilevers are respectively arranged on two opposite sides of the width direction of the chute, two limiting grooves are respectively arranged on two opposite sides of the width direction of the slide block, and one elastic cantilever is in buckling fit with one limiting groove;

and/or, the tray assembly further comprises a second guide rail, the second guide rail is arranged on the tray body, and the second guide rail is provided with the sliding block.

9. The fiber optic distribution frame of claim 5, wherein the tray assembly further comprises at least two positioning rails spaced apart from the tray body to define a positioning slot, the fiber optic module case being slidably disposed in the positioning slot; the positioning guide rail is also in buckling fit with the optical fiber module box so as to limit the sliding of the optical fiber module box.

10. The fiber optic distribution frame of claim 9, wherein the positioning rail comprises:

the rail body is arranged on the disc body and is enclosed with the rail body of the other positioning guide rail to form the positioning groove, the rail body is provided with a guide groove, and the optical fiber module box is provided with a guide block which is connected with the guide groove in a sliding manner so that the optical fiber module box is arranged in the positioning groove in a sliding manner; and

the two buckling arms extend outwards from one side of the rail body respectively and are arranged at intervals relatively to form buckling grooves in a surrounding mode, the optical fiber module box is provided with buckling platforms, and the buckling platforms are buckled in the buckling grooves.