CN207601380U - A kind of rack - Google Patents

A kind of rack Download PDF

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Publication number
CN207601380U
CN207601380U CN201721629117.1U CN201721629117U CN207601380U CN 207601380 U CN207601380 U CN 207601380U CN 201721629117 U CN201721629117 U CN 201721629117U CN 207601380 U CN207601380 U CN 207601380U
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China
Prior art keywords
adapter
accommodating chamber
box adapter
box
rack
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CN201721629117.1U
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Chinese (zh)
Inventor
何勇
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Guangdong yiyuantong Technology Co.,Ltd.
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Qingyuan Yitong Photoelectric Technology Co Ltd
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Priority to CN201721629117.1U priority Critical patent/CN207601380U/en
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Abstract

The utility model discloses a kind of racks, and including main body frame and box adapter, main body frame is provided with front and rear the first accommodating chamber be connected, and box adapter is provided with the second accommodating chamber for housing adapter, and adapter connects optical fiber connector from front.Among both the side wall of first accommodating chamber and the side of box adapter, one is provided with sliding slot along the longitudinal direction, another is provided with the sliding block that can be slided along sliding slot, so that box adapter can be slided along sliding slot in the first accommodating chamber.Position limiting structure is provided between sliding slot and sliding block, position limiting structure is used to limit the limiting length that box adapter forward extends out the first accommodating chamber.By setting sliding slot and sliding block, box adapter can be slided directly along the first accommodating chamber, not need to additionally set supporting plate, simplify structure.By setting position limiting structure, the length that box adapter pulls out forward is limited, even if user exerts oneself bigger, box adapter will not be completely pulled out, optical fiber is caused to be pulled off, reduce the risk of damage.

Description

A kind of rack
Technical field
The utility model is related to optical communication field more particularly to data center's distributing systems of optical communication field.
Background technology
In fiber plant, rack extensive use in the data center.Rack is mainly used for local side in optical fiber telecommunications system The Cheng Duan of backbone optical cable and distribution, it is convenient to realize the connection, distribution and scheduling of fibre circuit.As optical cable quantity increases, The continuous improvement of data center's packing density, traditional 1U (1U is industry-standard sizes, is 19 inches) rack assemble 48 cores The packing density of the LC (SC, LC are the optical fiber connector of different connection form) of 96 cores of SC or assembling cannot meet highly dense The assembling requirement of degree.At present, the packing density of 1U racks develops to the maximum packing density of 144 core LC.
With the raising of packing density, the spacing between optical fiber connector is also reduced, and causes installation inconvenient.In order to solve light The installation question of fiber connector, a kind of method are that handle is set on optical fiber connector, are pushed and pulled by the handle to extend back Optical fiber connector so that optical fiber connector may be inserted into or be detached from adapter.Handle extends back a certain distance, between handle Gap can be bigger, be conducive to human hand operation.
But increase handle and not only increase the cost of handle in itself, and need to be equipped with new optical fiber connector again, In order to solve the problems, such as this, some companies set slidable supporting plate in rack, and the box adapter of fixed adapter is individually solid It is scheduled on supporting plate.Supporting plate can fully slide out forward rack, optical fiber connector box be driven to be detached from rack forward, convenient for outside rack Optical fiber connector is installed, does not need to optional equipment handle.But slidable supporting plate is set such a structure increases supporting plate, knot Structure is complicated;Moreover, because limited allowance of the optical fiber in front of rack, if directly extracting supporting plate during user's operation out, be easy to cause The optical fiber being connected on adapter is pulled off.
Utility model content
The purpose of this utility model is that proposing a kind of rack, setting supporting plate is not needed to, and energy limit adaptation device box is drawn The distance gone out, avoids optical fiber from being pulled off, and reduces damage risk.
For this purpose, the utility model uses following technical scheme:
A kind of rack, including:
Main body frame is provided with front and rear the first accommodating chamber be connected;With
Box adapter, is provided with the second accommodating chamber for housing adapter, and adapter connects optical fiber connector from front;
Among both the side wall of first accommodating chamber and the side of box adapter, one is provided with sliding slot along the longitudinal direction, separately One is provided with the sliding block that can be slided along sliding slot, so that box adapter can be slided along sliding slot in the first accommodating chamber;
Position limiting structure is provided between sliding slot and sliding block, position limiting structure forward extends out the first receiving for limiting box adapter The limiting length of chamber.
Preferably, limiting length is box adapter along the 1/3~2/3 of the length of glide direction.
Preferably, the one end of sliding slot along the longitudinal direction is provided with limiting section, and end and the limiting section of sliding block form limiting knot Structure, when box adapter forward slip is to extreme position, the end of sliding block is abutted with limiting section.
Preferably, opening is offered on limiting section, one end of sliding block towards limiting section is convexly equipped with the portion of wearing, and wears portion along preceding Rear direction is set, and is worn portion and is slided along opening.
Preferably, box adapter is provided with the front tension bar extended forward and the back stay to extend back.
Preferably, the outside of sliding block or the slot bottom of sliding slot are convexly equipped with damper portion, to increase the resistance of sliding block slip.
Preferably, on horizontal direction direction, main body frame setting there are two the first accommodating chamber, two the first accommodating chambers it Between be provided with partition board.
Preferably, box adapter is horizontally arranged with 6 the second accommodating chambers, and the second accommodating chamber is for 4 core LC adapters of receiving; Or
Box adapter is horizontally arranged with 12 the second accommodating chambers, and the second accommodating chamber is used to accommodate MPO adapters or 2 core LC are fitted Orchestration.
Preferably, box adapter forms open-topped box like structure to be enclosed to set by bottom plate and side plate, and the front end of bottom plate is horizontal To adapter fixed frame is provided with, the second accommodating chamber is set to adapter fixed frame, and both ends and the side plate of adapter fixed frame connect It connects.
Preferably, three wire spools are horizontally arranged on bottom plate.
Advantageous effect:The utility model provides a kind of rack, including main body frame and box adapter, main body frame setting There is front and rear the first accommodating chamber be connected, box adapter is provided with the second accommodating chamber for housing adapter, and adapter is from front Connect optical fiber connector.Among both the side wall of first accommodating chamber and the side of box adapter, one is provided with along the longitudinal direction Sliding slot, another is provided with the sliding block that can be slided along sliding slot, so that box adapter can be slided along sliding slot in the first accommodating chamber. Position limiting structure is provided between sliding slot and sliding block, position limiting structure is used to limit the limit that box adapter forward extends out the first accommodating chamber Length.By setting corresponding sliding slot and sliding block, box adapter can be slided directly along the first accommodating chamber, not need to additionally set Supporting plate simplifies structure.By setting position limiting structure, the length that box adapter pulls out forward is limited, even if user firmly compares When larger, box adapter will not be completely pulled out, optical fiber is caused to be pulled off, reduce the risk of damage.
Description of the drawings
The structure diagram of Fig. 1 a variety of adapters that have been rack provided by the utility model.
The internal structure schematic diagram of Fig. 2 a variety of adapters that have been rack provided by the utility model.
Fig. 3 is the structure diagram of box adapter and runner block cooperation provided by the utility model.
Fig. 4 is the explosive view of box adapter and runner block provided by the utility model.
Fig. 5 is the partial enlarged view at the A of Fig. 4.
Fig. 6 is the partial enlarged view at the B of Fig. 4.
The sectional view of Fig. 7 a variety of adapters that have been rack provided by the utility model.
Fig. 8 is the partial enlarged view at the C of Fig. 7.
Wherein:
1- main body frames, the first accommodating chambers of 11-, 12- runner blocks, 13- partition boards, 2- box adapters, the second accommodating chambers of 21-, 22- bottom plates, 23- side plates, 24- adapter fixed frames, 25- wire spools, 26- rear ends mounting hole, 31- sliding slots, 32- sliding blocks, 321- Damper portion, 33- wear portion, 4- position limiting structures, 41- limiting sections, 42- openings, 5- adapters, 51-2 core LC adapters, 52-4 cores LC adapters, 53-MPO adapters, 61- front tension bars, 62- back stays, 7- line supporting racks.
Specific embodiment
The technical issues of to solve the utility model, the technical solution used and the technique effect reached are clearer, Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Fig. 1~Fig. 8, the embodiment of the utility model provides a kind of rack, can be used for fiber plant, fixed Adapter 5.It is intended to for 1, in the present embodiment, front-rear direction refers to the direction of the line where arrow b in figure, and preceding is away from arrow The direction of b, after be arrow b direction.Horizontal direction refers to the direction of the line where arrow a in figure.
Rack includes 1 box box adapter 2 of main body frame.As shown in Figure 1, main body frame 1 be provided with it is front and rear be connected the One accommodating chamber 11.In the present embodiment, main body frame 1 is enclosed to set and be formed by four pieces of plate-like pieces (such as sheet metal component etc.), passes through bolt It is fixed.Four pieces of plate-like pieces, which enclose, sets out front and rear the first accommodating chamber 11 be connected.As shown in Fig. 2, the inside of the plate-like piece in side, also Runner block 12 is provided with, runner block 12 forms the side wall of the first accommodating chamber 11.As shown in Figure 4 and Figure 6, runner block 12 towards first The one side of accommodating chamber 11 offers sliding slot 31 along the longitudinal direction.
As shown in Fig. 2~Fig. 5, box adapter 2 is accommodated in the first accommodating chamber 11.Box adapter 2 is provided with to house Second accommodating chamber 21 of adapter 5, adapter 5 connect optical fiber connector from front.The side of box adapter 2 is provided with can be along cunning The sliding block 32 that slot 31 slides, so that box adapter 2 can be slided along sliding slot 31 in the first accommodating chamber 11.
Sliding slot 31 is set by the side wall in the first accommodating chamber 11, sliding block 32 is set in the side of box adapter 2, utilizes cunning The cooperation of block 32 and sliding slot 31, you can realize the slip between box adapter 2 and main body frame 1, when assembling optical fiber connector, Box adapter 2 can be extracted out a part, optical fiber connector is inserted on adapter 5.Such structure does not need to additionally set support The structures such as plate, simplify overall structure.
In use, it if adapter 5 etc. breaks down, needs to repair again after pulling up optical fiber connector, at this point, such as It is firmly excessive during fruit extraction box adapter 2, then box adapter 2 may be fully drawn out.Since optical fiber is in the front end of box adapter 2 Optical fiber when box adapter 2 is fully drawn out, may be broken, cause additional loss by reserved limited allowance.In order to solve This problem in the present embodiment, sets position limiting structure 4 also between sliding slot 31 and sliding block 32, and position limiting structure 4 is adapted to for limiting Device box 2 forward extends out the limiting length of the first accommodating chamber 11, can the limiting length that box adapter 2 forward extends out be limited to light Within fine length in reserve, for example, limiting length is set as box adapter 2 along the 1/3~2/3 of the length of glide direction, avoid Optical fiber is pulled off.Specifically, in the present embodiment, limiting length could be provided as length of the box adapter 2 along glide direction 1/2.In addition, the outside of sliding block 32 is also convexly equipped with damper portion 321, damper portion 321 is abutted with the slot bottom of sliding slot 31, to increase cunning The resistance that block 32 slides, avoids box adapter 2 from arbitrarily being shaken in the first accommodating chamber 111.Damper portion 321 can protrude from cunning One semicolumn of block 32, is integrally formed with sliding block 32, can also be fixed on by fastener on sliding block 32.In addition, damper portion 321 can also be arranged on the slot bottom of sliding slot 31, be abutted with the outside of sliding block 32.
It is understood that in addition to the side wall in the first accommodating chamber 11 sets sliding slot 31, set in the side of box adapter 2 Sliding slot 31 can also be arranged on the side of box adapter 2 by sliding block 32, and sliding block 32 is arranged on to the side wall of the first accommodating chamber 11, It can also realize being slidably connected between box adapter 2 and main body frame 1.
In the present embodiment, the front end of sliding slot 31 along the longitudinal direction is provided with limiting section 41, and limiting section 41 is towards sliding slot 31 The projection cube structure of interior projection, end and the limiting section 41 of sliding block 32 form position limiting structure 4, when 2 forward slip of box adapter to pole During extreme position, the end of sliding block 32 is abutted with limiting section 41, and blocking box adapter 2 continues to slide.The letter of 41 setting structure of limiting section It is single, it convenient for manufacture, and is directly limited using the end of sliding block 32, does not need to additionally set corresponding convex block etc. on sliding block 32, Simplify position limiting structure 4.Certainly, limiting section 41 is also not necessarily positioned to the end of sliding slot 31, can also be arranged on others Position, for example do not set on sliding slot 31, and other regions are set to, then corresponding in the setting of the corresponding position of box adapter 2 Convex block, as long as the two cooperation limiting.
If it is understood that sliding slot 31 to be arranged on to the side of box adapter 2, sliding block 32 is arranged on the first receiving The side wall of chamber 11 then correspondingly needs limiting section 41 being arranged on the rear end of sliding slot 31 along the longitudinal direction, and details are not described herein again.
In order to preferably keep 32 smooth sliding of sliding block, as shown in figure 5, offering opening 42, sliding block on limiting section 41 32 are convexly equipped with the portion of wearing 33 towards one end of limiting section 41, wear portion 33 and set along the longitudinal direction, wear portion 33 and are slided along opening 42 It is dynamic.The cooperation between portion 33 and opening is worn, the limitation to sliding block 32 in glide direction is further extended, is conducive to keep Sliding block 32 it is steady.
For the ease of extracting box adapter 2 out outward, in the present embodiment, box adapter 2 is provided with the preceding drawing extended forward Bar 61, front tension bar 61 and the side of box adapter 2 are integrally formed, and do not need to additional fixation.In addition, the box adapter of the present embodiment 2 install from the rear end of the first accommodating chamber 11, and therefore, box adapter 2 is additionally provided with the back stay 62 to extend back.Back stay 62 is solid Due to the rear end of box adapter 2, convenient in dismounting, box adapter 2 is fully drawn out from the rear end of the first accommodating chamber 11.
Since the external dimensions of main body frame 1 is standard size, in order to fully make good use of the first receiving as possible The fewer chamber 11, the first accommodating chamber 11 should be the better in the quantity of horizontal direction.The quantity of first accommodating chamber 11 in a lateral direction More, then the partition board quantity between each first accommodating chamber 11 is more, and partition board can occupy a part of space, causes total available It reduces in space.But the width (length in a lateral direction) of the first accommodating chamber 11 is corresponding with the width of box adapter 2, such as The width of the first accommodating chamber of fruit 11 is excessive, and box adapter 2 can be bent under excessive width due to insufficient strength.Therefore, exist In the present embodiment, main body frame 1 is set on horizontal direction direction there are two the first accommodating chamber 11, two the first accommodating chambers 11 it Between be provided with partition board 13.One partition board 13 is only set in the present embodiment, it can be while the intensity for taking into account adaptation box 2, as possible Fully utilize the space of the first accommodating chamber 11.
By making full use of to the first accommodating chamber 11, in the present embodiment, 6 can be horizontally arranged in box adapter 2 A second accommodating chamber 21, the second accommodating chamber 21 is for 4 core LC adapters 52 of receiving.It can also be horizontally arranged in box adapter 2 12 the second accommodating chambers 21, the second accommodating chamber 21 are used to accommodate MPO adapters or 2 core LC adapters 51.Wherein, LC adapters are used In connection LC optical fiber connectors, MPO adapters 53 are used to connect MPO optical fiber connector.In fact, it is accommodated with partition board 13 and first The relationship of chamber 11 is similar, also by the structure isolation similar to partition board, therefore, the second accommodating chamber 21 between the second accommodating chamber 21 Quantity is more, and the second accommodating chamber 22 is total will to be reduced using space.That is, in the case where total core number is identical, 2 core LC are fitted The box adapter of orchestration 51 is more than box adapter the space occupied of 4 core LC adapters 52.In the prior art, generally 5 partition boards in one accommodating chamber 11 are set, cause the first accommodating chamber 11 is overall to be reduced using space so that the second accommodating chamber 21 Also the corresponding general 2 core LC adapters for reducing, respective numbers can not being set again.In order to accommodate 2 core LC adapters, the prior art By changing the size of 2 core LC adapters, become non-universal 2 core LC adapters of small size, increase cost.And in this implementation In example, in the case where only setting a partition board 13, increase the first accommodating chamber 11 it is overall using space, and then increase Second accommodating chamber 21 using space so that each box adapter 2 can set the second of 12 2 core LC adapters 51 of receiving Accommodating chamber 21.Therefore, for LC adapters, the rack of the present embodiment reaches 144 in total core number of receiving, and (unilateral individual layer is 24, be always divided into 2 sides (i.e. 2 the first accommodating chambers 11), three layers) in the case of, not only can be suitably used for 2 core LC adapters, but also can be applicable in In 4 core LC adapters, and it is general adapter, improves the versatility of product.A further, since 2 core LC adaptation Device is consistent with the size of a MPO adapter, therefore, will when box adapter 2 is horizontally arranged with 12 the second accommodating chambers 21, Second accommodating chamber 21 can also accommodate 12 MPO adapters.
As shown in Figure 3 and Figure 4, in the present embodiment, box adapter 2 for enclosed by bottom plate 22 and side plate 23 set formed top open The box like structure of mouth, the front end of bottom plate 22 are horizontally arranged with adapter fixed frame 24, and the second accommodating chamber 21 is set to adapter and consolidates Determine frame 24, the both ends of adapter fixed frame 24 are connect with side plate 23, and 2 overall structure of adapter is simple.For a box adapter 2, for LC adapters, whether 64 core LC adapters or 12 2 core LC adapters, the total core number that can be assembled all are 24, front end can connect 24 LC optical fiber connectors;For MPO adapters, the quantity that can be assembled is 12, and front end can connect Connect 12 MPO connectors.Three wire spools 25 are also horizontally arranged on bottom plate 22, after the rear end of bottom plate 22 is horizontally arranged with three Mounting hole 26 is held, rear end mounting hole 26 is used to fix MPO adapters.The MPO optical fiber connector that MPO adapters are connected is single-pass Road multicore structure, that is, multifiber can be included in a connecting line..When in use, front end connects box adapter 2 with LC optical fiber Device connection or MPO optical fiber connector connection are connect, depending on the type of adapter assembled in the second accommodating chamber 21, rear end passes through rear Mounting hole 26 is held to fix MPO adapters, is drawn by the MPO optical fiber connector being connect with MPO adapters.And in the MPO of rear end Between adapter in second accommodating chamber 21 of adapter and front end, connected using patchcord.One setting MPO light of patchcord Fiber connector, other end setting and the matched LC optical fiber connectors of adapter or MPO optical fiber connector in the second accommodating chamber 21. LC optical fiber connectors are single channel single structure, if front is LC fiber adapter, one shares 24 cores.For three coilings It, can be with front end if the MPO optical fiber connector of the MPO adapters connection of rear end uses 8 cored structures for the structure of disk 25 The LC fiber optic connectors of 24 cores, which correspond to, is divided into three bursts of patchcords, around one patchcord on each wire spool 25.If rear end MPO optical fiber connector using 12 cored structures, then correspondings with the LC fiber optic connectors of 24 core of front end can be divided into two strands turns Wiring, at this point it is possible to two wire spools 25 positioned at outside only be selected, around one patchcord on each wire spool 25.Therefore, it is right For LC adapter of the front for 24 cores, whether 8 cored structures or 12 cored structures can fit the MPO optical fiber connector of rear end With improving the versatility of product.If front end uses MPO adapters 53, MPO optical fiber connector is connected, rear end equally uses MPO adapters and MPO optical fiber connector.At this point, the core number in the MOP optical fiber connectors of rear end is connected for the MPO optical fiber of front end The summation of the core number of device.If front end uses the MPO optical fiber connector of 12 cores, rear end uses the MPO optical fiber connector of 72 cores, fits 12 the second accommodating chambers 21 that orchestration box 2 is set can accommodate the MPO optical fiber connector of 12 12 cores, at this point it is possible to by 12 The MPO optical fiber connector of 12 cores is divided into two groups, sets two MPO fiber adapter in rear end, one end of patchcord and rear end MPO fiber adapter connects, and the other end is divided into the MPO optical fiber connector of 6 12 cores, corresponding with 6 MPO adapters in one group Connection.Two bursts of patchcords are needed at this time, one patchcord is wound on a wire spool.
In addition, in the present embodiment, the front end of main body frame 1 is additionally provided with line supporting rack 7, and optical fiber is passed through from line supporting rack 7, Optical fiber connector is inserted into adapter.Line supporting rack 7 is used to carry the weight of optical fiber, avoids the pulling force at optical fiber connector excessive.
More than content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality With novel thought, there will be changes, the content of the present specification should not be construed as in specific embodiments and applications Limitation to the utility model.

Claims (10)

1. a kind of rack, which is characterized in that including:
Main body frame (1) is provided with front and rear the first accommodating chamber (11) be connected;With
Box adapter (2), is provided with the second accommodating chamber (21) for housing adapter (5), and the adapter (5) connects from front Connect optical fiber connector;
Among both the side wall of first accommodating chamber (11) and the side of the box adapter (2), one sets along the longitudinal direction Sliding slot (31) is equipped with, another is provided with the sliding block (32) that can be slided along the sliding slot (31), so that the box adapter (2) It can be slided in first accommodating chamber (11) along the sliding slot (31);
Position limiting structure (4) is provided between the sliding slot (31) and the sliding block (32), the position limiting structure (4) is for limiting State the limiting length that box adapter (2) forward extends out first accommodating chamber (11).
2. rack as described in claim 1, which is characterized in that the limiting length is the box adapter (2) edge slip side To length 1/3~2/3.
3. rack as described in claim 1, which is characterized in that the one end of the sliding slot (31) along the longitudinal direction is provided with limiting Portion (41), end and the limiting section (41) of the sliding block (32) form the position limiting structure (4), when the box adapter (2) when forward slip is to extreme position, the end of the sliding block (32) is abutted with the limiting section (41).
4. rack as claimed in claim 3, which is characterized in that offer opening (42), the cunning on the limiting section (41) One end of block (32) towards the limiting section (41) is convexly equipped with the portion of wearing (33), and the portion (33) that wears is set along the longitudinal direction, The portion (33) that wears is slided along the opening (42).
5. such as Claims 1 to 4 any one of them rack, which is characterized in that the box adapter (2), which is provided with, to be extended forward Front tension bar (61) and the back stay (62) that extends back.
6. such as Claims 1 to 4 any one of them rack, which is characterized in that the outside of the sliding block (32) or the sliding slot (31) slot bottom is convexly equipped with damper portion (321), to increase the resistance of the sliding block (32) slip.
7. such as Claims 1 to 4 any one of them rack, which is characterized in that on horizontal direction direction, the main body frame (1) setting is provided with partition board (13) there are two first accommodating chamber (11) between two first accommodating chambers (11).
8. rack as claimed in claim 6, which is characterized in that the box adapter (2) is horizontally arranged with 6 described second and holds Receive chamber (21), second accommodating chamber (21) is for accommodating 4 core LC adapters (52);Or
The box adapter (2) is horizontally arranged with 12 second accommodating chambers (21), and second accommodating chamber (21) is for holding Receive MPO adapters (53) or 2 core LC adapters (51).
9. rack as claimed in claim 7, which is characterized in that the box adapter (2) is by bottom plate (22) and side plate (23) It encloses and sets to form open-topped box like structure, the front end of the bottom plate (22) is horizontally arranged with adapter fixed frame (24), described Second accommodating chamber (21) is set to the adapter fixed frame (24), both ends and the side plate of the adapter fixed frame (24) (23) it connects.
10. rack as claimed in claim 9, which is characterized in that be horizontally arranged with three wire spools on the bottom plate (22) (25)。
CN201721629117.1U 2017-11-29 2017-11-29 A kind of rack Active CN207601380U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721629117.1U CN207601380U (en) 2017-11-29 2017-11-29 A kind of rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721629117.1U CN207601380U (en) 2017-11-29 2017-11-29 A kind of rack

Publications (1)

Publication Number Publication Date
CN207601380U true CN207601380U (en) 2018-07-10

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Application Number Title Priority Date Filing Date
CN201721629117.1U Active CN207601380U (en) 2017-11-29 2017-11-29 A kind of rack

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111487732A (en) * 2020-04-15 2020-08-04 王加齐 Multifunctional high-capacity optical fiber integrated tray

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111487732A (en) * 2020-04-15 2020-08-04 王加齐 Multifunctional high-capacity optical fiber integrated tray

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Address after: Longhua Avenue Longzhu road 511538 in Guangdong province Qingyuan City Chau Street No. 1

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Address before: Longhua Avenue Longzhu road 511538 in Guangdong province Qingyuan City Chau Street No. 1

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