Communication machine room cabling rack

By introducing sliders, support rods and connection rings into the communication room trace frame, the problem of cumbersome repair operations in the existing technology is solved, and the flexible adjustment and neat arrangement of the trace frame is realized, which facilitates repair operations and improves the Repair efficiency.

CN222215070UActive Publication Date: 2024-12-20HUAGONG FUTURE COMM (JIANGSU) CO LTD
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Patent Information

Application Number
CN202420850423.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-23
Publication Date
2024-12-20
Estimated Expiration
2034-04-23

AI Technical Summary

Technical Problem

The existing communication room wiring rack needs to be disassembled during repair, and the operation is cumbersome and requires a variety of tools, resulting in complicated repair work.

Method used

A wiring frame including a wiring support frame, a wiring crossbar and a supporting rod is designed. By setting sliders, support rods, left connection rings, right connection rings and longitudinal connection rings, the wiring frame is flexible and adjusted. Disassemble for easy repair operation.

Benefits of technology

It realizes the convenience of neatly arranged and disassembled wiring racks, reduces the number of tools used during the repair process, and improves repair efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a communication machine room cabling rack, which comprises a cabling support frame, a cabling cross rod and a support rod, the cabling support frame comprises a first cabling support frame and a second cabling support frame, the bottoms of the front end and the rear end of the first cabling support frame are respectively and movably provided with a left connecting ring, and the bottom of the second cabling support frame is movably provided with a right connecting ring. Right connecting rings are movably arranged at the bottoms of the front end and the rear end of the second wiring supporting frame respectively, longitudinal connecting rings are movably arranged on the outer sides of the front end and the rear end of the second wiring supporting frame respectively, and the first wiring supporting frame and the second wiring supporting frame are arranged in parallel; a plurality of wiring cross rods are sequentially arranged between the first wiring supporting frame and the second wiring supporting frame in the length direction of the first wiring supporting frame and the second wiring supporting frame, and the two ends of the wiring cross rods are fixed to the two opposite sides of the first wiring supporting frame and the second wiring supporting frame respectively; a plurality of sliding blocks are sequentially installed at the upper ends of the first wiring supporting frame and the second wiring supporting frame in the length direction, supporting rods are movably connected to the upper ends of the sliding blocks in a one-to-one correspondence mode, and the upper ends of the supporting rods are installed on the wall top.
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Description

Technical Field

[0001] The utility model relates to the technical field related to communication rooms, in particular to a wiring rack for a communication room. Background Art

[0002] There are many cables arranged in the communication room. If they are not arranged neatly, the cables in the communication room will be messy, because the communication room wiring rack is needed to arrange the cables neatly.

[0003] For example, the utility model patent with application number CN202320027344.6 discloses a wiring rack for a communication room, including a wiring crossbar, a mounting plate and a mounting port, the outer ends of the wiring crossbar are provided with mounting bumps on both sides, and the wiring crossbar is provided with a connecting rod, the top of the connecting rod is provided with a mounting plate, and the surface of the mounting plate is evenly provided with mounting screws, the lower outer end of the connecting rod is provided with a connecting piece, and the outer surface between the two groups of the wiring crossbars is provided with a mounting frame. This wiring rack for a communication room can facilitate the use of a wiring rack between the wiring crossbars to make it convenient to make the limit plates evenly distributed inside the top plate and slidably arranged to divide the bottom plate and the top plate, so as to facilitate the distribution and wiring of the data connection lines placed inside. During maintenance, the top plate and the bottom plate can be disassembled by rotating the first fastening nut, so as to facilitate the wire picking and maintenance of the internal wiring harness. It is simple to use and has a better wiring effect.

[0004] Although this type of communication room wiring rack is easy to use and has a good wiring effect, during repair, since the overall position of the wiring rack is fixed, the repairman needs to disassemble the entire wiring rack when he wants to adjust the spatial position of the wiring rack. When disassembling the cables, the bolts also need to be removed, resulting in cumbersome repair work and the need to use many disassembly tools, which needs further improvement. Utility Model Content

[0005] The utility model aims to provide a wiring rack for a communication room, aiming to improve the problem that the repair work is cumbersome and many disassembly tools are required.

[0006] The utility model is implemented as follows: a wiring rack for a communication room comprises a wiring support rack, a wiring cross bar and a support rod, the wiring support rack comprises a first wiring support rack and a second wiring support rack, the front and rear ends of the first wiring support rack are respectively movably provided with a left connecting ring at the bottom, the front and rear ends of the second wiring support rack are respectively movably provided with a right connecting ring at the bottom, the front and rear ends of the second wiring support rack are respectively movably provided with a longitudinal connecting ring at the outer sides of the front and rear ends of the second wiring support rack, the first wiring support rack and the second wiring support rack are respectively movably provided with a parallel arrangement; a plurality of wiring cross bars are sequentially arranged between the first wiring support rack and the second wiring support rack along their length direction, the two ends of the wiring cross bars are respectively fixed on the opposite sides of the first wiring support rack and the second wiring support rack; the upper ends of the first wiring support rack and the second wiring support rack are sequentially installed with a plurality of sliders along their length direction, the upper ends of the sliders are movably connected with the support rods in a one-to-one correspondence, and the upper ends of the support rods are installed on the top of the wall.

[0007] Preferably, the left connecting ring includes a first left connecting ring and a second left connecting ring, the first left connecting ring is movably mounted on the front bottom of the first wiring support frame, and the second left connecting ring is movably mounted on the rear bottom of the first wiring support frame, and a limit pin is installed in the middle; the right connecting ring includes a first right connecting ring and a second right connecting ring, the first right connecting ring is movably mounted on the front bottom of the second wiring support frame, and the second right connecting ring is movably mounted on the rear bottom of the second wiring support frame; the longitudinal connecting ring includes a first longitudinal connecting ring and a second longitudinal connecting ring, the first longitudinal connecting ring is movably mounted on the front bottom of the second wiring support frame, and the second longitudinal connecting ring is movably mounted on the rear bottom of the second wiring support frame; the first left connecting ring, the first right connecting ring and the first longitudinal connecting ring are all equipped with corresponding limit pins.

[0008] Preferably, the wiring crossbar includes a wiring crossbar base, a wiring crossbar cover and a buffer pad, the two ends of the wiring crossbar base are respectively fixedly mounted on the inner sides of the first wiring support frame and the second wiring support frame, and the upper surface of the wiring crossbar base is provided with a plurality of wiring grooves in parallel along its length direction; a buffer pad is provided at the position of the wiring crossbar cover corresponding to the wiring groove, and the wiring crossbar cover is detachably mounted on the upper end of the wiring crossbar base.

[0009] Preferably, two groups of buckles are symmetrically arranged on both sides of the wiring crossbar base, and the wiring crossbar upper cover is provided with matching buckle grooves corresponding to the positions of the buckles, and the buckle grooves are detachably mounted on the buckles.

[0010] Preferably, the slider is T-shaped, and the upper ends of the first wiring support frame and the second wiring support frame are provided with sliding grooves that are compatible with the slider. The slider is slidably installed in the sliding groove. A limiting bolt is provided on the side of the slider away from the wiring cross bar. The first wiring support frame and the second wiring support frame are provided with a row of limiting holes that are compatible with the limiting bolts on the side away from the wiring cross bar. The limiting bolts are installed on the slider through the limiting holes.

[0011] Preferably, the support rod is a telescopic rod, the lower end of the support rod is provided with a groove, the upper end of the sliding block is provided with a rounded boss matched with the groove, a limit pin is installed on the rounded boss, and the rounded boss is movably installed in the groove through the limit pin; the upper end of the support rod is provided with a mounting plate, the mounting plate is sequentially provided with screws along its circumferential direction, and the mounting plate is mounted on the top of the wall through the screws.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model arranges the cables neatly and facilitates disassembly by providing a wiring crossbar.

[0014] 2. The utility model provides a slider and a support rod, so that when the wiring rack needs to partially fall, the support rod can be moved to the end that does not need to fall, so as to facilitate the falling of the other end.

[0015] 3. The utility model provides a left connecting ring, a right connecting ring and a longitudinal connecting ring, so that a plurality of wiring racks can be installed in coordination with each other at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the first wiring support frame of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the second wiring support frame of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the wiring crossbar of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the support rod of the utility model.

[0022] In the figure: 1. first wiring support frame; 2. second wiring support frame; 3. wiring cross bar; 301. wiring cross bar base; 302. wiring cross bar upper cover; 303. buffer pad; 304. wiring groove; 305. buckle groove; 306. buckle; 4. support rod; 401. groove; 402. mounting plate; 403. screw; 5. slider; 501. rounded boss; 502. limit bolt; 6. left connecting ring; 601. first left connecting ring; 602. second left connecting ring; 7. right connecting ring; 701. first right connecting ring; 702. second right connecting ring; 8. longitudinal connecting ring; 801. first longitudinal connecting ring; 802. second longitudinal connecting ring; 9. slide groove. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following is a further description with reference to the accompanying drawings and specific embodiments:

[0025] Example 1

[0026] like Figure 2-Figure 4As shown, a wiring rack for a communication room includes a wiring support rack, a wiring crossbar 3 and a support rod 4. The wiring support rack includes a first wiring support rack 1 and a second wiring support rack 2. The bottoms of the front and rear ends of the first wiring support rack 1 are movably provided with left connecting rings 6, and the bottoms of the front and rear ends of the second wiring support rack 2 are movably provided with right connecting rings 7. The outer sides of the front and rear ends of the second wiring support rack 2 are movably provided with longitudinal connecting rings 8. The left connecting ring 6 includes a first left connecting ring 601 and a second left connecting ring 602. The first left connecting ring 601 is movably installed at the bottom of the front end of the first wiring support rack 1, and the second left connecting ring 602 is movably installed at the bottom of the rear end of the first wiring support rack 1, and a limiting pin is installed in the middle; the right connecting ring 7 includes a first right connecting ring 701 and a second right connecting ring 702. The first right connecting ring 701 is movably installed at the bottom of the front end of the first wiring support rack 1, and the second left connecting ring 602 is movably installed at the bottom of the rear end of the first wiring support rack 1. The first left connecting ring 601, the first right connecting ring 701 and the first longitudinal connecting ring 801 are movably installed at the bottom of the front end of the second wiring support frame 2, and the second right connecting ring 702 is movably installed at the bottom of the rear end of the second wiring support frame 2; the longitudinal connecting ring 8 includes a first longitudinal connecting ring 801 and a second longitudinal connecting ring 802, the first longitudinal connecting ring 801 is movably installed at the bottom of the front end of the second wiring support frame 2, and the second longitudinal connecting ring 802 is movably installed at the bottom of the rear end of the second wiring support frame 2; the first left connecting ring 601, the first right connecting ring 701 and the first longitudinal connecting ring 801 are all equipped with matching limit pins. The first wiring support frame 1 and the second wiring support frame 2 are arranged in parallel; through the left connecting ring 6, the right connecting ring 7 and the longitudinal connecting ring 8, when the cables need to be arranged at an angle to the left, right and up and down, the front and rear communication room wiring racks can be movably connected together at a certain angle head to tail so as to extend the length of the communication room wiring rack.

[0027] like Figure 2 and Figure 5 As shown, a plurality of wiring cross bars 3 are sequentially arranged between the first wiring support frame 1 and the second wiring support frame 2 along the length direction thereof, and the two ends of the wiring cross bars 3 are respectively fixed on the two opposite sides of the first wiring support frame 1 and the second wiring support frame 2, and the wiring cross bars 3 include a wiring cross bar base 301, a wiring cross bar upper cover 302 and a buffer pad 303, and the two ends of the wiring cross bar base 301 are respectively fixedly installed on the inner sides of the first wiring support frame 1 and the second wiring support frame 2, and the upper side of the wiring cross bar base 301 is fixedly installed on the inner sides of the first wiring support frame 1 and the second wiring support frame 2. The surface is provided with a plurality of wiring grooves 304 in parallel in sequence along its length direction; a buffer pad 303 is provided at the position of the wiring crossbar upper cover 302 corresponding to the wiring groove 304, and the wiring crossbar upper cover 302 is detachably mounted on the upper end of the wiring crossbar base 301; two groups of buckles 306 are symmetrically arranged on both sides of the wiring crossbar base 301, and the wiring crossbar upper cover 302 is provided with a matching buckle groove 305 at the position corresponding to the buckle 306, and the buckle groove 305 is detachably mounted on the buckle 306.

[0028] like Figure 1 , Figure 2 and Figure 6As shown, the upper ends of the first wiring support frame 1 and the second wiring support frame 2 are sequentially installed with multiple sliders 5 along their length directions, and the sliders 5 are T-shaped. The upper ends of the first wiring support frame 1 and the second wiring support frame 2 are provided with slide grooves 9 that are compatible with the sliders 5. The sliders 5 are slidably installed in the slide grooves 9. A limiting bolt 502 is provided on the side of the slider 5 away from the wiring cross bar 3. A row of limiting holes that are compatible with the limiting bolts 502 are provided on the side of the first wiring support frame 1 and the second wiring support frame 2 that are away from the wiring cross bar 3. The limiting bolts 502 pass through the limiting holes and are installed on the sliders 5; the upper ends of the sliders 5 are movably connected with the support rods 4 in a one-to-one correspondence, the upper ends of the support rods 4 are installed on the top of the wall, the support rods 4 are retractable rods, the lower ends of the support rods 4 are provided with grooves 401, the upper ends of the sliders 5 are provided with rounded bosses 501 adapted to the grooves 401, and the rounded bosses 501 are provided with limit pins, and the rounded bosses 501 are movably installed in the grooves 401 through the limit pins; the upper ends of the support rods 4 are provided with mounting disks 402, and the mounting disks 402 are sequentially provided with screws 403 along the circumferential direction thereof, and the mounting disks 402 are installed on the top of the wall through the screws 403.

[0029] Example 2

[0030] like Figure 2-Figure 4 As shown, a wiring rack for a communication room includes a wiring support rack, a wiring cross bar 3 and a support bar 4. The wiring support rack includes a first wiring support rack 1 and a second wiring support rack 2. The bottoms of the front and rear ends of the first wiring support rack 1 are movably provided with left connecting rings 6, and the bottoms of the front and rear ends of the second wiring support rack 2 are movably provided with right connecting rings 7. The outer sides of the front and rear ends of the second wiring support rack 2 are movably provided with longitudinal connecting rings 8. The left connecting ring 6 includes a first left connecting ring 601 and a second left connecting ring 602. The first left connecting ring 601 is movably installed at the bottom of the front end of the first wiring support rack 1, and the second left connecting ring 602 is movably installed at the bottom of the rear end of the first wiring support rack 1. A limit pin; the right connecting ring 7 includes a first right connecting ring 701 and a second right connecting ring 702, the first right connecting ring 701 is movably installed at the bottom of the front end of the second wiring support frame 2, and the second right connecting ring 702 is movably installed at the bottom of the rear end of the second wiring support frame 2; the longitudinal connecting ring 8 includes a first longitudinal connecting ring 801 and a second longitudinal connecting ring 802, the first longitudinal connecting ring 801 is movably installed at the bottom of the front end of the second wiring support frame 2, and the second longitudinal connecting ring 802 is movably installed at the bottom of the rear end of the second wiring support frame 2; the first left connecting ring 601, the first right connecting ring 701 and the first longitudinal connecting ring 801 are all equipped with corresponding limit pins, and the first wiring support frame 1 and the second wiring support frame 2 are arranged in parallel.

[0031] like Figure 2 and Figure 5As shown, a plurality of wiring cross bars 3 are sequentially arranged between the first wiring support frame 1 and the second wiring support frame 2 along the length direction thereof, and the two ends of the wiring cross bars 3 are respectively fixed on the two opposite sides of the first wiring support frame 1 and the second wiring support frame 2, and the wiring cross bars 3 include a wiring cross bar base 301, a wiring cross bar upper cover 302 and a buffer pad 303, and the two ends of the wiring cross bar base 301 are respectively fixedly installed on the inner sides of the first wiring support frame 1 and the second wiring support frame 2, and the upper side of the wiring cross bar base 301 is fixedly installed on the inner sides of the first wiring support frame 1 and the second wiring support frame 2. The surface is provided with a plurality of wiring grooves 304 in parallel in sequence along its length direction; a buffer pad 303 is provided at the position of the wiring crossbar upper cover 302 corresponding to the wiring groove 304, and the wiring crossbar upper cover 302 is detachably mounted on the upper end of the wiring crossbar base 301; two groups of buckles 306 are symmetrically arranged on both sides of the wiring crossbar base 301, and the wiring crossbar upper cover 302 is provided with a matching buckle groove 305 at the position corresponding to the buckle 306, and the buckle groove 305 is detachably mounted on the buckle 306.

[0032] like Figure 1 , Figure 2 and Figure 6 As shown, the upper ends of the first wiring support frame 1 and the second wiring support frame 2 are sequentially installed with multiple sliders 5 along their length directions, and the sliders 5 are T-shaped. The upper ends of the first wiring support frame 1 and the second wiring support frame 2 are provided with slide grooves 9 that are compatible with the sliders 5. The sliders 5 are slidably installed in the slide grooves 9. A limiting bolt 502 is provided on the side of the slider 5 away from the wiring cross bar 3. A row of limiting holes that are compatible with the limiting bolts 502 are provided on the side of the first wiring support frame 1 and the second wiring support frame 2 that are away from the wiring cross bar 3. The limiting bolts 502 pass through the limiting holes and are installed on the sliders 5; the upper ends of the sliders 5 are movably connected with the support rods 4 in a one-to-one correspondence, the upper ends of the support rods 4 are installed on the top of the wall, the support rods 4 are retractable rods, the lower ends of the support rods 4 are provided with grooves 401, the upper ends of the sliders 5 are provided with rounded bosses 501 adapted to the grooves 401, and the rounded bosses 501 are provided with limit pins, and the rounded bosses 501 are movably installed in the grooves 401 through the limit pins; the upper ends of the support rods 4 are provided with mounting disks 402, and the mounting disks 402 are sequentially provided with screws 403 along the circumferential direction thereof, and the mounting disks 402 are installed on the top of the wall through the screws 403.

[0033] The working principle of the utility model is as follows: the wiring rack is fixed on the top of the wall as a whole through the mounting plate 402, and then the spatial position of the wiring rack is adjusted by telescoping the support rod 4 up and down. When the cables need to be arranged to the left, right, and up and down at an angle, the front and rear wiring racks of the communication room can be movably connected together at a certain angle end to end through the left connecting ring 6, the right connecting ring 7, and the longitudinal connecting ring 8 so as to extend the length of the wiring rack in the communication room; after the wiring rack is installed, the communication cables are neatly arranged in the wiring groove 304, and the wiring crossbar upper cover 302 is installed on the wiring crossbar base through the buckle 306 to tighten the communication cables; when the communication cables need to be repaired, the support rod 4 can be slid to the end away from the maintenance personnel through the slider 5 and the support rod 4, and the end of the wiring rack close to the maintenance personnel can be dropped.

[0034] In summary, the utility model arranges the wiring cross bar 3 so that the cables are arranged neatly and disassembled conveniently; by arranging the slider 5 and the support rod 4, when the wiring rack needs to partially fall, the support rod 4 can be moved to the end that does not need to fall, so as to facilitate the falling of the other end; by arranging the left connecting ring 6, the right connecting ring 7 and the longitudinal connecting ring 8, multiple wiring racks can be installed in coordination with each other at different angles.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wiring rack for a communication room, comprising a wiring support frame, a wiring crossbar (3) and a support rod (4), characterized in that: The wiring support frame comprises a first wiring support frame (1) and a second wiring support frame (2), the bottoms of the front and rear ends of the first wiring support frame (1) are respectively movably provided with left connecting rings (6), the bottoms of the front and rear ends of the second wiring support frame (2) are respectively movably provided with right connecting rings (7), the outer sides of the front and rear ends of the second wiring support frame (2) are respectively movably provided with longitudinal connecting rings (8), and the first wiring support frame (1) and the second wiring support frame (2) are respectively arranged in parallel; a plurality of wiring cross bars (3) are sequentially provided between the first wiring support frame (1) and the second wiring support frame (2) along their length direction, and the two ends of the wiring cross bars (3) are respectively fixed on the opposite sides of the first wiring support frame (1) and the second wiring support frame (2); the upper ends of the first wiring support frame (1) and the second wiring support frame (2) are sequentially provided with a plurality of sliders (5) along their length direction, and the upper ends of the sliders (5) are movably connected to the support bars (4) in a one-to-one correspondence, and the upper ends of the support bars (4) are installed on the top of the wall.

2. A communication room wiring rack according to claim 1, characterized in that: The left connecting ring (6) includes a first left connecting ring (601) and a second left connecting ring (602), wherein the first left connecting ring (601) is movably mounted on the front bottom of the first wiring support frame (1), and the second left connecting ring (602) is movably mounted on the rear bottom of the first wiring support frame (1), and a limiting pin is mounted in the middle; the right connecting ring (7) includes a first right connecting ring (701) and a second right connecting ring (702), wherein the first right connecting ring (701) is movably mounted on the front bottom of the second wiring support frame (2), and the second left connecting ring (602) is movably mounted on the rear bottom of the first wiring support frame (1). The second right connecting ring (702) is movably mounted on the bottom rear end of the second wiring support frame (2); the longitudinal connecting ring (8) comprises a first longitudinal connecting ring (801) and a second longitudinal connecting ring (802), the first longitudinal connecting ring (801) being movably mounted on the bottom front end of the second wiring support frame (2), and the second longitudinal connecting ring (802) being movably mounted on the bottom rear end of the second wiring support frame (2); the first left connecting ring (601), the first right connecting ring (701) and the first longitudinal connecting ring (801) are all equipped with corresponding limit pins.

3. The communication room wiring rack according to claim 1, characterized in that: The wiring crossbar (3) comprises a wiring crossbar base (301), a wiring crossbar upper cover (302) and a buffer pad (303); the two ends of the wiring crossbar base (301) are respectively fixedly mounted on the inner sides of the first wiring support frame (1) and the second wiring support frame (2); the upper surface of the wiring crossbar base (301) is provided with a plurality of wiring grooves (304) in parallel along its length direction; the wiring crossbar upper cover (302) is provided with a buffer pad (303) at a position corresponding to the wiring grooves (304); the wiring crossbar upper cover (302) is detachably mounted on the upper end of the wiring crossbar base (301).

4. A communication room wiring rack according to claim 3, characterized in that: Two groups of buckles (306) are symmetrically provided on both sides of the wiring crossbar base (301), and the wiring crossbar upper cover (302) is provided with a matching buckle groove (305) at a position corresponding to the buckle (306), and the buckle groove (305) is detachably mounted on the buckle (306).

5. The communication room wiring rack according to claim 1, characterized in that: The slider (5) is T-shaped, and the upper ends of the first wiring support frame (1) and the second wiring support frame (2) are both provided with a slide groove (9) adapted to the slider (5), and the slider (5) is slidably installed in the slide groove (9), and a limiting bolt (502) is provided on the side of the slider (5) away from the wiring cross bar (3), and a row of limiting holes adapted to the limiting bolt (502) are provided on the side of the first wiring support frame (1) and the second wiring support frame (2) away from the wiring cross bar (3), and the limiting bolt (502) is installed on the slider (5) through the limiting hole.

6. The communication room wiring rack according to claim 1, characterized in that: The support rod (4) is a telescopic rod, and a groove (401) is provided at the lower end of the support rod (4), and a rounded boss (501) adapted to the groove (401) is provided at the upper end of the slider (5), and a limit pin is installed on the rounded boss (501), and the rounded boss (501) is movably installed in the groove (401) through the limit pin; the upper end of the support rod (4) is provided with a mounting plate (402), and the mounting plate (402) is sequentially provided with screws (403) along its circumferential direction, and the mounting plate (402) is mounted on the top of the wall through the screws (403).