CN202364510U

CN202364510U - Sub-rack

Info

Publication number: CN202364510U
Application number: CN2011204514398U
Authority: CN
Inventors: 李晓鹏; 刘丰林
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2011-11-15
Filing date: 2011-11-15
Publication date: 2012-08-01
Anticipated expiration: 2021-11-15

Abstract

The utility model discloses a sub-rack. The sub-rack includes a main plug-in box (1100), a sub plug-in frame (1200). A first side of the main plug-in box (1100) is provided with one or more first areas used for fixing singles plates on one side of docking single plates. A second side of the main plug-in box (1100) is provided with an opening. The second side is opposite to the first side. The sub plug-in frame (1200) can be disposed in the opening through a dismountable part. The sub plug-in frame (1200) is provided with one or more second areas used for fixing singles plates on one side of the docking single plates. By using the sub-rack in the utility model, the efficiency in installing a PCB back board in the sub-rack can be improved. At the same time, the position precision in installing the PCB back board can be improved.

Description

Sub-frame

Technical Field

The utility model relates to the field of communication, particularly, relate to a subrack.

Background

With the rapid development of communication technology, in recent years, the requirement for information transmission in the field of optical communication has become higher and higher, and a function board is placed on a single surface in a traditional chassis (i.e., a subrack), and the requirement for large-capacity information transmission processing cannot be met by the way of placing the function board on the single surface. In order to achieve the goal of large-capacity information processing, only stacking methods such as adding a chassis are adopted for solving the problem. This brings a new problem that since the respective housings are independent and signal processing between them can be transmitted only by the connection cable, the signal processing speed and reliability are seriously affected.

Based on the above consideration, the related art proposes that a whole Printed Circuit Board (PCB for short) backboard is used for large-capacity information transmission processing, and the technology of inserting single boards is placed on two sides of the PCB backboard, so that the speed of information transmission processing is greatly improved by placing the function boards, and the reliability can be ensured to some extent. Fig. 1 is a schematic view illustrating a PCB backplane of a conventional front-rear board pair-plug-in sub-rack according to the related art, and as shown in fig. 1, the PCB backplane is installed according to a conventional method by first placing the PCB backplane from an opening at the upper portion or the bottom portion of the sub-rack and then fastening the PCB backplane with an upper guide rail plate and a lower guide rail plate.

However, as the information capacity is larger and larger, the number of the single boards in the subrack is larger and larger, so that the subrack is also larger and larger, the PCB boards are installed in the subrack according to the conventional method, not only is the production efficiency low, but also the accuracy and the stability of the position of the PCB backplane installed in the subrack are affected due to the need of reserving the space for installing the PCB backplane in the subrack.

Aiming at the problems that the mode of installing the PCB in the subrack in the related art has low production efficiency and the precision of installing the position of the PCB backboard is lower, an effective solution is not provided at present.

SUMMERY OF THE UTILITY MODEL

Mode production efficiency to installation PCB board in the subrack is low, and the lower problem of precision of installation PCB backplate position, the utility model provides a subrack to solve above-mentioned problem at least.

According to an aspect of the utility model, a subframe is provided, include: the main inserting box 1100 and the sub inserting frame 1200, wherein a first side of the main inserting box 1100 is provided with one or more first areas for fixing a single plate on one side of the opposite inserting single plates, and a second side of the main inserting box 1100 is provided with an opening, wherein the second side is located opposite to the first side; the sub-insertion frame 1200 is disposed in the opening through a detachable connection member, and the sub-insertion frame 1200 is provided with one or more second areas for fixing a board on the other side of the pair of insertion boards.

Preferably, the main insert box 1100 includes a main left side plate 1101, a main top cover plate 1106 and a main right side plate 1102 which are connected in sequence, and further includes: at least one main lower guide rail plate 1104 for guiding a single plate on one side of the inserted single plates to be led in or led out, wherein the main lower guide rail plate 1104 is parallel to the main roof plate 1106, and the main lower guide rail plate 1104 is connected to the main left side plate 1101 and the main right side plate 1102 respectively.

Preferably, the main compartment 1100 further comprises: the main upper guide rail plate 1103 is parallel to the main roof plate 1106, and the main upper guide rail plate 1103 is connected to the main left side plate 1101 and the main right side plate 1102 respectively.

Preferably, the main compartment 1100 further comprises: a left strut 1107 and a right strut 1108; the left supporting plate 1107 and the right supporting plate 1108 are parallel to the main left side plate 1101 and the main right side plate 1102, and the left supporting plate 1107 and the right supporting plate 1108 are respectively connected with the main upper guide rail plate 1103 and the main lower guide rail plate 1104.

Preferably, the main compartment 1100 further comprises: one or more short guide plate 1105, short guide plate 1105 is located between main upper guide plate 1103 and main lower guide plate 1104, short guide plate 1105 both sides respectively with left fagging 1107, left side plate 1101 are connected, perhaps, short guide plate 1105 both sides respectively with right fagging 1108, right side plate 1102 are connected.

Preferably, the sub-inserting frame 1200 includes a sub-left side plate 1201, a sub-top cover plate 1205 and a sub-right side plate 1202 which are connected in sequence, and further includes: at least one sub lower guide rail plate 1204 for guiding one single plate of the pair of inserted single plates to be led in or out, wherein the sub lower guide rail plate 1204 is parallel to the sub top cover plate 1205, and the sub lower guide rail plate 1204 is respectively connected with the sub left side plate 1201 and the sub right side plate 1202.

Preferably, the sub frame 1200 further includes: at least one sub upper guide rail plate 1203 for guiding one single plate in or out of the inserted single plates, the sub upper guide rail plate 1203 is parallel to the sub top cover plate 1205, and the sub upper guide rail plate 1203 is connected to the sub left side plate 1201 and the sub right side plate 1202 respectively.

Preferably, the subrack further comprises: a PCB backboard 2000 of the PCB, wherein the PCB backboard 2000 is provided with a positioning pin 2001 corresponding to the appointed positions of the sub upper guide rail plate 1203 and the sub lower guide rail plate 1204; the designated positions of the sub upper guide rail plate 1203 and the sub lower guide rail plate 1204 are respectively provided with a positioning hole, and the positioning holes are matched with the corresponding positioning pins 2001 on the PCB back plate 2000;

preferably, the main left side plate 1101 and the main right side plate 1102 of the main insert box 1100 further comprise: a lumbar circular hole; the sub-left side plate 1201 and the sub-right side plate 1202 of the sub-insert frame 1200 further include: a threaded hole; the positions of the oval holes on the main left side plate 1101 and the main right side plate 1102 of the main plug box 1100 are respectively matched with the positions of the threaded holes on the sub left side plate 1201 and the sub right side plate 1202 of the sub plug frame 1200.

Preferably, the subrack further comprises: and the air guide net cover 1300 is arranged on the sub-inserting frame 1200 through a detachable connecting part.

Through the utility model discloses, adopt above-mentioned subrack 1000, can dismantle earlier when the installation PCB backplate the subrack 1200, then put into main subrack 1100 with PCB backplate 2000 from the opening part, fixed back is inserting subrack 1200 back, has solved the mode production efficiency of installation PCB backplate 2000 in the subrack low, and the lower problem of precision of installation PCB backplate 2000 position, has improved the efficiency and the precision of installation PCB backplate 2000.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic view illustrating a conventional front and rear single boards mounted to a PCB backplane of a rack according to the related art;

fig. 2 is a schematic view of a subrack according to an embodiment of the invention;

fig. 3 is an overall schematic view of a subrack according to a preferred embodiment of the present invention;

fig. 4 is a schematic composition diagram of a subrack according to a preferred embodiment of the present invention;

FIG. 5 is a schematic diagram of the main insert box according to the preferred embodiment of the present invention;

fig. 6 is a schematic diagram of the sub-frame according to the preferred embodiment of the present invention;

fig. 7 is a schematic diagram of a PCB backplane installation sequence according to a preferred embodiment of the present invention;

fig. 8 is a schematic view of a positioning structure of the sub plug frame according to the preferred embodiment of the present invention;

fig. 9 is a schematic view of fixing two sides of the sub-insert frame according to the preferred embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

When the PCB back plate in the conventional sub-frame is installed, the sub-frame is a whole, and the PCB back plate needs to be placed into the sub-frame from an opening at the upper part or the bottom of the sub-frame, so that the installation is inconvenient.

In view of the above problem, the present embodiment provides a subrack, and fig. 2 is a schematic view of a subrack 1000 according to an embodiment of the present invention, and as shown in fig. 2, the subrack 1000 includes: a main insertion box 1100, a sub insertion frame 1200, wherein,

a first side of the main inserting box 1100 is provided with one or more first areas for fixing one single board of the opposite inserting single boards, and a second side of the main inserting box 1100 is provided with an opening, wherein the second side is opposite to the first side;

the sub insertion frame 1200 is disposed in the opening through a detachable connection member, and the sub insertion frame 1200 is provided with one or more second regions for fixing the other side board among the opposite insertion boards.

By adopting the sub-rack 1000, the sub-plug frame 1200 can be detached firstly when the PCB back panel 2000 is installed, then the PCB back panel 2000 is placed into the main plug-in box 1100 from the opening, and the sub-plug frame 1200 is installed back after being fixed, so that the efficiency of installing the PCB back panel 2000 in the sub-rack can be greatly improved; meanwhile, the sub-insert frame 1200 is detachable, so that a space for installing the PCB backboard 2000 is not required to be reserved when the sub-frame is manufactured, and the accuracy of installing the PCB backboard 2000 is greatly improved.

In order to facilitate air guiding of the sub-insertion frame 1200, an air guiding mesh enclosure 1300 may be installed on the sub-insertion frame 1200. The air guiding net cover 1300 may be manufactured as one body with the sub insertion frame 1200 during manufacturing, or may be manufactured separately and then the air guiding net cover 1300 is mounted on the sub insertion frame 1200 through a detachable connection member.

The shape and configuration of the main box 1100 are various, and in order to make the space utilization ratio relatively high and the structure simple, the main box 1100 is square in the embodiment.

The main insert box 1100 may include a main left side plate 1101, a main top cover plate 1106, and a main right side plate 1102, which are connected in sequence, and may further include: and at least one main lower guide rail plate 1104 for guiding the single plate on one side of the inserted single plates to be led in or out, wherein the main upper guide rail plate 1103 and the main lower guide rail plate 1104 are parallel to the main roof plate 1106, and the main upper guide rail plate 1103 and the main lower guide rail plate 1104 are respectively connected with the main left side plate 1101 and the main right side plate 1102. The insertion and extraction accuracy between the single board and the PCB backplane 2000 can be ensured by the main upper guide plate 1103 and the main lower guide plate 1104.

It should be noted that the use of the main upper rail plate 1103 and the main lower rail plate 1104 in a matched manner is only a preferred embodiment, and the insertion and extraction accuracy between the single board and the PCB backplane 2000 can be ensured by using only the main lower rail plate 1104.

In specific implementation, sometimes different types of single boards need to be inserted into the subrack, and in order to improve the space utilization rate of the first area in the main subrack 1100, the main subrack 1100 may further include: a left supporting plate 1107 and a right supporting plate 1108, wherein the left supporting plate 1107 and the right supporting plate 1108 are parallel to the main left side plate 1101 and the main right side plate 1102, and the left supporting plate 1107 and the right supporting plate 1108 are respectively connected with the main upper guide rail plate 1103 and the main lower guide rail plate 1104.

In specific implementation, sometimes a single board smaller than a single board of the same type needs to be inserted into the subrack, and based on this consideration, the main subrack 1100 may further include: and the short guide plate 1105 is positioned between the main upper guide plate 1103 and the main lower guide plate 1104, and two sides of the short guide plate 1105 are respectively connected with the left supporting plate 1107 and the left side plate 1101, or two sides of the short guide plate 1105 are respectively connected with the right supporting plate 1108 and the right side plate 1102.

Because the power of the single board is larger in the specific implementation, one or more fan boxes 4000 can be installed in the main inserting box 1100, and a dust screen assembly 3000 can be installed at an air inlet of the fan box 4000.

The shape and the configuration of the sub-insertion frame 1200 are various, and in order to make the space utilization ratio relatively high and the structure simple, the sub-insertion frame 1200 is illustrated as a square shape in the present embodiment.

The sub-inserting frame 1200 may include a sub-left side plate 1201, a sub-top cover plate 1205, and a sub-right side plate 1202, which are connected in sequence, and may further include: and at least one sub upper guide rail plate 1203 and a sub lower guide rail plate 1204 for guiding the single plate on one side of the inserted single plates to be led in or out, wherein the sub upper guide rail plate 1203 and the sub lower guide rail plate 1204 are parallel to the sub top cover plate 1205, and the sub upper guide rail plate 1203 and the sub lower guide rail plate 1204 are respectively connected with the sub left side plate 1201 and the sub right side plate 1202. After the sub-insert frame 1200 is integrally installed, the inserting and pulling precision between the single board and the PCB backplane 2000 can be ensured by the sub-upper guide rail plate 1203 and the sub-lower guide rail plate 1204.

It should be noted that the matching use of the sub upper guide rail plate 1203 and the sub lower guide rail plate 1204 is only a preferred embodiment, and the inserting and pulling precision between the single board and the PCB backplane 2000 can be ensured by using only the sub lower guide rail plate 1204.

It should be noted that the structure of the main lower guide plate 1104 is different from that of the sub lower guide plate 1204, and it is obvious that the sub lower guide plate 1204 should be installed in the main box, and the width dimension of the sub lower guide plate is smaller than that of the main lower guide plate 1104, which should not be construed as an improper limitation of the present invention. The same applies to other plates, for example, the main upper rail plate 1103 and the sub upper rail plate 1203, and the main left plate 1101 and the sub left plate 1201, which are the same below.

In specific implementation, sometimes different types of boards need to be inserted into the sub-frame, and in order to improve the space utilization of the sub-frame 1200, the sub-frame 1200 may also include: left and

right gussets

1107 and 1108 and/or one or more short guide plates 1105.

Because the power of the single board is larger in the specific implementation, one or more fan boxes 4000 may be installed in the sub-plug frame 1200, and a dust screen assembly 3000 may be installed at an air inlet of the fan box 4000.

When the PCB back panel 2000 is mounted, the PCB back panel 2000 is firstly positioned and mounted on the main box according to a conventional mounting process, in order to ensure the accuracy of the mounting position of the whole sub-insertion frame, a positioning pin 2001 may be mounted at a designated position (for example, an intermediate position) of the corresponding sub upper guide rail plate 1203 and sub lower guide rail plate 1204 of the PCB back panel 2000, and the sub upper guide rail plate 1203 and the sub lower guide rail plate 1204 are respectively provided with a positioning hole which is matched with the corresponding positioning pin 2001 on the PCB back panel 2000. The positioning pin 2001 on the PCB back plate 2000 is inserted into the positioning hole on each layer of guide rail plate when the sub-insert frame is pushed in for installation, and the guide rail plates are connected with other structural components of the sub-insert frame into a whole, so that the whole sub-insert frame is effectively positioned while the guide rail plates are positioned, and the positioning pin 2001 can be determined by laser drilling in the manufacturing process of the PCB back plate 2000, and the precision is very high, so that the positioning pin 2001 is installed on the PCB back plate 2000, and the positioning and installation precision of the sub-insert frame is further ensured.

In order to make the sub-rack 1000 mounted with the PCB backplane 2000 more stable, the sub-insert frame 1200 and the PCB backplane 2000 are positioned and contacted, after the PCB backplane 2000 and the sub-insert frame 1200 are fastened into a whole by screws, the screws are used to pass through waist circular holes on the left side plate 1101 and the right side plate 1102 in the main insert box 1100, and are screwed into the threaded holes of the left side plate 1201 and the right side plate 1202 of the corresponding sub-insert frame 1200, and are fastened. The positions of the oval holes formed in the main left plate 1101 and the main right plate 1102 of the main box 1100 should be kept away from the positions where the sub upper rail plate 1203 and the sub lower rail plate 1204 of the sub box frame 1200 are mounted. Due to the design of the waist circular holes, after the sub plug frame 1200 is effectively fixed to the PCB back boards 2000 with different thicknesses, both the left side board 1201 and the right side board 1202 of the sub plug frame 1200 can be fastened and connected with the left side board 1101 and the right side board 1102 of the main plug box 1100 into a whole.

The following description is made in conjunction with a preferred embodiment which combines the above embodiments and preferred embodiments.

In the preferred embodiment, an overall frame type installation opposite-plug rack for communication products is provided, fig. 3 is an overall schematic view of a sub-rack 1000 according to the preferred embodiment of the present invention, fig. 4 is a schematic view of a sub-rack 1000 according to the preferred embodiment of the present invention, and as shown in fig. 4, the sub-rack 1000 includes a main plug box 1100, and a sub-plug frame 1200 and an air guide net cover 1300 which can be integrally pushed or pulled out.

Fig. 5 is a schematic diagram of the main box 1100 according to the preferred embodiment of the present invention, and as shown in fig. 5, the main box 1100 includes a main left side plate 1101, a main right side plate 1102, a main upper guide plate 1103, a main lower guide plate 1104, a short guide plate 1105, a main ceiling plate 1106, a left supporting plate 1107, a right supporting plate 1108, a dust screen assembly 3000, and a fan box 4000.

Fig. 6 is a schematic composition diagram of a sub-inserting frame 1200 according to a preferred embodiment of the present invention, as shown in fig. 6, the sub-inserting frame 1200 includes a sub-left side plate 1201, a sub-right side plate 1202, a sub-upper guide rail plate 1203, a sub-lower guide rail plate 1204, a sub-top cover plate 1205, a dust screen assembly 3000, and a fan box 4000.

Based on above-mentioned subframe 1000, fig. 7 is according to the utility model discloses PCB backplate 2000 installation order sketch map of preferred embodiment, as shown in fig. 7, before installation PCB backplate 2000, insert frame 1200 and wind-guiding screen panel 1300 screw down whole pulling out according to the position shown in fig. 4 earlier, again according to the order shown in fig. 7, install PCB backplate 2000 earlier and fix to main upper guideway plate 1103 of main subrack, main lower guideway plate 1104, short guideway plate 1105, left fagging 1107, on the right fagging 1108, then push into main subrack from the rear with sub-frame 1200, install wind-guiding screen panel 1300 at last.

Fig. 8 is a schematic view of a positioning structure of a sub plug frame 1200 according to a preferred embodiment of the present invention, and as shown in fig. 8, a positioning pin 2001 is installed on a PCB back plate 2000 and faces positioning holes of a sub upper guide rail plate 1203 and a sub lower guide rail plate 1204 of the sub plug frame 1200. When the sub-bay 1200 is pushed into the main bay 1100, the positioning pins 2001 on the PCB backplane 2000 are aligned with and enter the positioning holes of the upper rail plate 1203 and the lower rail plate 1204 of the sub-bay 1200. After the pushed sub-insert frame 1200 is positioned and contacted with the PCB backplane 2000, the PCB backplane 2000 and the sub-insert frame 1200 are fastened into a whole by screws.

Fig. 9 is a schematic view illustrating the fixing of the sub-plug frame 1200 on both sides, and as shown in fig. 9, screws are used on both sides of the sub-plug frame 1200 to pass through the waist holes on the main left side plate 1101 and the main right side plate 1102 of the main plug box 1100, and are screwed into the corresponding screw holes on the sub-left side plate 1201 and the sub-right side plate 1202 of the sub-plug frame 1200, and are fastened.

The utility model has the advantages that: the traditional mode of installing the PCB backboard into the box body from the upper opening and the lower opening of the case is changed into the traditional PCB backboard installing mode shown in figure 1, the integrally detachable frame-shaped sub-inserting frame 1200 is designed, and the PCB backboard 2000 can be conveniently installed as long as the sub-inserting frame 1200 and the air guide net cover 1300 are integrally pulled out. The installation mode can meet the requirement of efficiently assembling the PCB backboard 2000 in large-scale production, thoroughly eliminates thickness error gaps caused by installing the PCB backboard in the sub-frame, and simultaneously ensures the plugging precision of the functional single boards inserted in front and back of the main plug box 1100 and the sub plug frame 1200 after installation, so that the plug can be accurately plugged into the socket of the PCB backboard 2000. The utility model discloses simple structure, it is practical reliable, the equipment is rapid, convenient operation, it is fast, capacious to have satisfied information transmission processing simultaneously, and the veneer can the two-way requirement of inserting of high accuracy, especially in the optical communication trade, has fine spreading value.

In conclusion, the sub-frame 1000 of the present invention can disassemble the sub-insert frame 1200 when the PCB backboard 2000 is installed, then place the PCB backboard into the main insert box 1100 from the opening, and then install the sub-insert frame 1200 back after fixing, so as to greatly improve the efficiency of installing the PCB backboard in the sub-frame; meanwhile, the sub-inserting frame 1200 is detachable, so that a space for installing the PCB backboard is not required to be reserved when the sub-frame is manufactured, and the precision of the position for installing the PCB backboard is greatly improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A subrack, comprising: a main plug-in box (1100) and a sub plug-in frame (1200), wherein,

one or more first areas for fixing one single board of the opposite-inserted single boards are arranged on the first side of the main inserting box (1100), and an opening is formed in the second side of the main inserting box (1100), wherein the second side is opposite to the first side;

the sub-inserting frame (1200) is arranged in the opening through a detachable connecting part, and one or more second areas used for fixing the single plate on the other side in the opposite inserting single plate are arranged on the sub-inserting frame (1200).

2. The subrack of claim 1, wherein the main insert box (1100) comprises a main left side plate (1101), a main roof plate (1106) and a main right side plate (1102) connected in sequence, further comprising:

the main lower guide rail plate (1104) is used for guiding a single plate on one side of the oppositely-inserted single plates to be led in or led out, the main lower guide rail plate (1104) is parallel to the main top cover plate (1106), and the main lower guide rail plate (1104) is connected with the main left side plate (1101) and the main right side plate (1102) respectively.

3. The subrack of claim 2, wherein the main subrack (1100) further comprises:

the main upper guide rail plate (1103) is used for guiding a single plate on one side of the oppositely-inserted single plates to be led in or led out, the main upper guide rail plate (1103) is parallel to the main top cover plate (1106), and the main upper guide rail plate (1103) is connected with the main left side plate (1101) and the main right side plate (1102) respectively.

4. The subrack of claim 3, wherein the main subrack (1100) further comprises: a left supporting plate (1107) and a right supporting plate (1108);

wherein, left fagging (1107), right fagging (1108) are on a parallel with main left side board (1101), main right side board (1102), left fagging (1107), right fagging (1108) respectively with guide rail plate (1103) and main lower guideway plate (1104) are connected on the owner.

5. The subrack of claim 4, wherein the main subrack (1100) further comprises:

one or more short guide rail board (1105), short guide rail board (1105) are located between guide rail board (1103) and the main lower guide rail board (1104) on the main, short guide rail board (1105) both sides respectively with left fagging (1107), left side board (1101) are connected, perhaps, short guide rail board (1105) both sides are connected with right fagging (1108), right side board (1102) respectively.

6. The subrack of claim 1, wherein the subrack (1200) comprises a subleft side plate (1201), a subtop cover plate (1205) and a subright side plate (1202) which are connected in sequence, and further comprises:

the lower guide rail plate is used for guiding one side of the inserted single plates to be led in or led out, the lower guide rail plate (1204) is parallel to the sub top cover plate (1205), and the lower guide rail plate (1204) is connected with the left sub side plate (1201) and the right sub side plate (1202) respectively.

7. The subrack of claim 6, wherein the subrack (1200) further comprises:

and the sub upper guide rail plate (1203) is used for guiding a single plate on one side of the inserted single plates to be led in or led out, the sub upper guide rail plate (1203) is parallel to the sub top cover plate (1205), and the sub upper guide rail plate (1203) is respectively connected with the sub left side plate (1201) and the sub right side plate (1202).

8. The subrack of claim 7, further comprising:

the PCB backboard (2000) comprises a PCB backboard (2000), and a positioning pin (2001) is respectively arranged on the PCB backboard (2000) corresponding to the appointed positions of the sub upper guide rail plate (1203) and the sub lower guide rail plate (1204);

the sub upper guide rail plate (1203) and the sub lower guide rail plate (1204) are respectively provided with a positioning hole, and the positioning holes are matched with corresponding positioning pins (2001) on the PCB back plate (2000).

9. The subrack of claim 7, wherein the main left side panel (1101) and the main right side panel (1102) of the main insert box (1100) further comprise: a lumbar circular hole; the sub-left side plate (1201) and the sub-right side plate (1202) of the sub-inserting frame (1200) further comprise: a threaded hole; wherein,

the positions of the kidney-shaped holes in the main left side plate (1101) and the main right side plate (1102) of the main plug-in box (1100) are respectively matched with the positions of the threaded holes in the sub left side plate (1201) and the sub right side plate (1202) of the sub plug-in frame (1200).

10. The subrack of any of claims 1 to 9, further comprising: the air guide net cover (1300), the air guide net cover (1300) through can dismantle adapting unit set up in sub-above of inserting frame (1200).