Cable channel structure for ring main unit

Abstract

The utility model relates to ring main unit technical field, and disclose a cable passageway structure for ring main unit, including ring main unit frame, the ring main unit frame is fixedly installed with top cover plate, the ring main unit frame one end is fixedly installed with front side plate, the ring main unit frame inner wall four corners all are seted up with mounting hole, the ring main unit frame is fixedly installed with lower cover plate subassembly through mounting hole, the upper cover plate subassembly is installed in the lower cover plate subassembly inner along and is inserted, the lower cover plate subassembly and upper cover plate subassembly between be provided with cable body. This cable passageway structure for ring main unit, through multiple equidistance distribution's groove one and groove two can accommodate multiple cable body simultaneously, realize the classification arrangement and isolation of cable, through the protection sleeve of rubber material corresponding groove one installation, can buffer the rigid contact of cable body and lower mounting frame, and the elastic property of rubber, both can reduce the friction damage when cable body vibration, practicality is stronger, can be convenient for using widely.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, specifically to a cable channel structure for ring main units. Background Technology

[0002] In power distribution networks, ring main units (RNBs) are key electrical equipment used to realize ring network power supply, tap control, and protection of cable lines. They are widely used in urban centers, industrial parks, residential communities, transportation hubs, and other scenarios. Their cable channel structure is the core hub connecting the internal electrical components of the RNB with the external cable lines. It undertakes important functions such as cable laying guidance, insulation protection, environmental isolation and waterproofing, moisture protection, dust protection, mechanical fixing, and safety assurance, including fire prevention and arc protection. It directly affects the operational reliability, safety, and maintenance convenience of the RNB.

[0003] Chinese Utility Model Patent Publication No. CN211700948U discloses a top-in / top-out cable channel structure for a ring main unit. The specification of this structure reveals that it utilizes a classification plate and classification holes to classify and install cables, preventing multiple cables from being mixed together. This facilitates quick retrieval of the corresponding cable during maintenance, saving time and improving efficiency. However, this top-in / top-out cable channel structure lacks a cable protection structure, making it difficult to buffer the rigid contact between the cable body and the lower mounting bracket. This can easily lead to frictional damage to the cable body during vibration, thus affecting its normal use. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide a cable channel structure for ring main units. This structure effectively addresses the issues in existing technologies where the lack of a cable protection structure hinders the buffering of rigid contact between the cable body and the lower mounting bracket, easily leading to frictional damage during cable vibration and thus affecting normal operation.

[0005] The technical solution adopted by this utility model is: a cable channel structure for a ring main unit, including a ring main unit frame, a top cover plate fixedly installed on the ring main unit frame, a front side plate fixedly installed at one end of the ring main unit frame, mounting holes provided at the four corners of the inner wall of the ring main unit frame, a lower cover plate assembly fixedly installed on the ring main unit frame through the mounting holes, an upper cover plate assembly inserted into the inner edge of the lower cover plate assembly, and a cable body provided between the lower cover plate assembly and the upper cover plate assembly; The lower cover plate assembly includes a lower mounting bracket with slots extending from top to bottom at both ends. The lower mounting bracket is inserted into the ring main unit frame through the slots. An mounting plate is fixedly installed on the lower mounting bracket. A slot is provided on the inner edge of the mounting plate. The lower mounting bracket is inserted into the ring main unit frame through the slots. The upper cover plate assembly includes inserts fixedly installed at both ends of the upper mounting plate, and the two ends are provided with grooves running from top to bottom.

[0006] Preferably, a first groove is provided at the inner edge of the lower mounting bracket, and a second groove is provided at the inner edge of the upper mounting plate. The first groove and the second groove have the same structure, and the cross-section of the first groove and the second groove are semi-circular.

[0007] With the above technical solution, both the groove one of the lower mounting bracket and the groove two of the upper mounting plate are semi-circular structures. When the two are closed, they form a circular channel that can fit against the outer wall of the cable body. This can both wrap around and limit the cable body to prevent it from shaking, and reduce the squeezing damage to the cable body's outer sheath through the arc-shaped contact surface.

[0008] Preferably, there are multiple identical grooves one and groove two, and the multiple grooves one and groove two are distributed at equal intervals.

[0009] Through the above technical solution, multiple equally spaced grooves 1 and 2 can simultaneously accommodate multiple cable bodies, realizing the classification, sorting and isolation of cables. The equally spaced layout avoids the cables from getting tangled or squeezed together, making it easier to quickly identify cables with different functions during later maintenance, and improving the neatness and maintenance efficiency of the wiring inside the ring main unit.

[0010] Preferably, protective sleeves are fixedly installed at both ends of the lower mounting bracket away from the first groove. The protective sleeves are rubber sleeves, and the protective sleeves correspond one-to-one with the first groove.

[0011] The above technical solution, by installing a rubber protective sleeve corresponding to the groove, can buffer the rigid contact between the cable body and the lower mounting bracket, and the elastic properties of rubber can reduce frictional damage when the cable body vibrates.

[0012] Preferably, one end of the mounting plate has a positioning hole, and one end of the insert has a positioning hole, with the positioning hole and the positioning hole being aligned.

[0013] Through the above technical solution, by cooperating with the positioning hole one of the mounting plate one and the positioning hole three of the insert strip, after the two are aligned, fasteners can be inserted, and then the lower cover plate assembly and the upper cover plate assembly can be locked together. At the same time, it can also cooperate with the frame reserved groove of the ring network cabinet frame, thereby realizing the overall fixation and installation.

[0014] Preferably, a second mounting plate is fixedly mounted on the end of the first mounting plate away from the lower mounting bracket, and a second positioning hole is provided through the second mounting plate, with the second mounting plate and the mounting hole being aligned.

[0015] Through the above technical solution, the positioning hole 2 of the mounting plate 2 is aligned with the mounting hole of the ring main unit frame, and the lower cover plate assembly is fixed to the ring main unit frame by fasteners.

[0016] Preferably, the upper mounting plate is inserted into the ring main unit frame via groove three, and the lower mounting bracket is inserted into the upper mounting plate via slot two.

[0017] The above technical solution allows the upper mounting plate to be inserted into the ring main unit frame via groove three, and simultaneously cooperates with the lower mounting bracket via slot two, forming a double positioning structure. This enables the rapid installation of the upper and lower cover plates and ensures a firm connection with the ring main unit frame, guaranteeing the integrity of the cable channel while facilitating quick disassembly for cable replacement or maintenance.

[0018] Compared with the prior art, this utility model provides a cable channel structure for ring main units, which has the following advantages: 1. The cable channel structure for the ring main unit can simultaneously accommodate multiple cable bodies through multiple equally spaced grooves 1 and 2, realizing the classification, sorting and isolation of cables. The protective sleeve made of rubber material is installed in the corresponding groove 1, which can buffer the rigid contact between the cable body and the lower mounting frame. Furthermore, the elastic properties of rubber can reduce frictional damage when the cable body vibrates. 2. The cable channel structure for the ring main unit uses an upper mounting plate that is inserted into the ring main unit frame via groove three, and simultaneously engages with the lower mounting bracket via slot two, forming a double positioning structure. This allows for quick installation of the upper and lower cover plates and a secure connection with the ring main unit frame, ensuring the integrity of the cable channel while facilitating quick disassembly for cable replacement or maintenance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ; Figure 4 This is a schematic diagram showing the disassembled structure of the lower cover plate assembly and the upper cover plate assembly of this utility model; Figure 5 This is a schematic diagram of the installation structure of the lower cover plate assembly and the upper cover plate assembly of this utility model. Figure 1 ; Figure 6 This is a schematic diagram of the installation structure of the lower cover plate assembly and the upper cover plate assembly of this utility model. Figure 2 .

[0020] The components include: 1. Ring main unit frame; 2. Top cover plate; 3. Front side plate; 4. Mounting holes; 5. Lower cover plate assembly; 501. Lower mounting bracket; 502. Groove 1; 503. Protective sleeve; 504. Slot 1; 505. Mounting plate 1; 506. Positioning hole 1; 507. Slot 2; 508. Mounting plate 2; 509. Positioning hole 2; 6. Upper cover plate assembly; 601. Upper mounting plate; 602. Groove 2; 603. Insert strip; 604. Positioning hole 3; 605. Groove 3; 7. Cable body. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: As Figure 1-6 As shown, the cable channel structure for ring main units provided by this utility model includes a ring main unit frame 1, a top cover plate 2 fixedly installed on the ring main unit frame 1, a front side plate 3 fixedly installed at one end of the ring main unit frame 1, mounting holes 4 are provided at the four corners of the inner wall of the ring main unit frame 1, a lower cover plate assembly 5 is fixedly installed on the ring main unit frame 1 through the mounting holes 4, an upper cover plate assembly 6 is inserted and installed at the inner edge of the lower cover plate assembly 5, and a cable body 7 is provided between the lower cover plate assembly 5 and the upper cover plate assembly 6. The lower cover plate assembly 5 includes a lower mounting bracket 501 with slots 504 extending from top to bottom at both ends. The lower mounting bracket 501 is inserted into the ring main unit frame 1 through the slots 504. A mounting plate 505 is fixedly installed on the lower mounting bracket 501. A slot 507 is provided at the inner edge of the mounting plate 505. The lower mounting bracket 501 is inserted into the ring main unit frame 1 through the slots 504. The upper cover assembly 6 includes an insert 603 fixedly installed at both ends of an upper mounting plate 601, with grooves 605 extending through both ends from top to bottom.

[0023] Specifically, a groove 502 is provided on the inner edge of the lower mounting bracket 501, and a groove 602 is provided on the inner edge of the upper mounting plate 601. The grooves 502 and 602 have the same structure, and their cross-sections are semi-circular. The advantage is that the grooves 502 and 602 of the lower mounting bracket 501 and the groove 602 of the upper mounting plate 601 are both semi-circular. When they are closed, they form a circular channel that can fit against the outer wall of the cable body 7. This can both wrap around and limit the cable body 7 to prevent it from shaking, and reduce the squeezing damage to the outer sheath of the cable body 7 through the arc-shaped contact surface.

[0024] Specifically, there are multiple grooves 502 and 602, which are evenly spaced. The advantage is that multiple equally spaced grooves 502 and 602 can accommodate multiple cable bodies 7 at the same time, realizing the classification, sorting and isolation of cables. The evenly spaced layout avoids the cables from getting tangled or squeezed together, which facilitates the quick identification of cables with different functions during later maintenance, and improves the neatness and maintenance efficiency of the internal wiring of the ring main unit.

[0025] Specifically, protective sleeves 503 are fixedly installed at both ends of the lower mounting bracket 501 away from the groove 502. The protective sleeves 503 are rubber sleeves, and the protective sleeves 503 correspond one-to-one with the grooves 502. The advantage is that by installing the rubber protective sleeves 503 corresponding to the grooves 502, the rigid contact between the cable body 7 and the lower mounting bracket 501 can be buffered. In addition, the elastic properties of rubber can reduce frictional damage to the cable body 7 when it vibrates.

[0026] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0027] Specifically, one end of the mounting plate 505 has a positioning hole 506, and one end of the insert 603 has a positioning hole 604. The positioning hole 506 and the positioning hole 604 are aligned. The advantage is that, through the cooperation of the positioning hole 506 of the mounting plate 505 and the positioning hole 604 of the insert 603, after the two are aligned, fasteners can be inserted, and then the lower cover plate assembly 5 and the upper cover plate assembly 6 can be locked together. At the same time, it can also cooperate with the frame reserved groove of the ring main unit frame 1, thereby realizing the overall fixation and installation.

[0028] Specifically, a second mounting plate 508 is fixedly installed on the end of the mounting plate 505 away from the lower mounting bracket 501. A second positioning hole 509 is provided through the second mounting plate 508. The second mounting plate 508 is aligned with the mounting hole 4. The advantage is that by aligning the second positioning hole 509 of the second mounting plate 508 with the mounting hole 4 of the ring main unit frame 1, the lower cover plate assembly 5 is fixed to the ring main unit frame 1 by fasteners.

[0029] Specifically, the upper mounting plate 601 is plugged into the ring main unit frame 1 via groove 3 605, and the lower mounting bracket 501 is plugged into the upper mounting plate 601 via slot 2 507. The advantage is that by plugging the upper mounting plate 601 into the ring main unit frame 1 via groove 3 605 and simultaneously cooperating with the lower mounting bracket 501 via slot 2 507, a double positioning structure is formed, allowing for quick installation of the upper and lower covers and a firm connection with the ring main unit frame 1. This ensures the integrity of the cable channel and facilitates quick disassembly for cable replacement or maintenance.

[0030] Working Principle: During use, both the first groove 502 of the lower mounting bracket 501 and the second groove 602 of the upper mounting plate 601 are semi-circular structures. When closed, they form a circular channel that fits snugly against the outer wall of the cable body 7. This not only provides a wrapping restraint for the cable body 7, preventing it from shaking, but also reduces pressure damage to the cable body 7's outer sheath through the arc-shaped contact surface. Multiple equally spaced grooves 502 and 602 can simultaneously accommodate multiple cable bodies 7, enabling cable sorting and isolation. The equidistant layout prevents cables from tangling or being squeezed together, facilitating quick identification of cables with different functions during later maintenance. This improves the neatness and maintenance efficiency of the internal wiring of the ring main unit. The rubber protective sleeve 503, installed corresponding to the first groove 502, buffers the rigid contact between the cable body 7 and the lower mounting bracket 501, while the elasticity of the rubber... Features include reducing frictional damage to the cable body 7 during vibration; the alignment of the positioning holes 506 on the mounting plate 505 and 604 on the insert 603 allows for the insertion of fasteners, which then lock the lower cover assembly 5 and the upper cover assembly 6 together. This also works in conjunction with the pre-reserved slots in the ring main unit frame 1, achieving overall fixation and installation. The positioning holes 509 on the mounting plate 508 align with the mounting holes 4 in the ring main unit frame 1, and fasteners secure the lower cover assembly 5 to the ring main unit frame 1. The upper mounting plate 601 is inserted into the ring main unit frame 1 via the groove 605, and simultaneously engages with the lower mounting bracket 501 via the slot 507, forming a double positioning structure. This allows for rapid installation of the upper and lower covers and a secure connection to the ring main unit frame 1, ensuring the integrity of the cable channel and facilitating quick disassembly for cable replacement or maintenance.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable channel structure for a ring main unit, comprising a ring main unit frame (1), wherein a top cover plate (2) is fixedly installed on the ring main unit frame (1), and a front side plate (3) is fixedly installed at one end of the ring main unit frame (1), characterized in that: The ring network cabinet frame (1) has four corners of the inner wall with mounting holes (4). The ring network cabinet frame (1) is fixedly installed with a lower cover plate assembly (5) through the mounting holes (4). An upper cover plate assembly (6) is inserted into the inner edge of the lower cover plate assembly (5). A cable body (7) is provided between the lower cover plate assembly (5) and the upper cover plate assembly (6). The lower cover plate assembly (5) includes a lower mounting bracket (501) with slots (504) extending from top to bottom at both ends. The lower mounting bracket (501) is inserted into the ring main unit frame (1) through the slots (504). A mounting plate (505) is fixedly installed on the lower mounting bracket (501). A slot (507) is provided at the inner edge of the mounting plate (505). The lower mounting bracket (501) is inserted into the ring main unit frame (1) through the slots (504). The upper cover assembly (6) includes inserts (603) fixedly installed at both ends of the upper mounting plate (601), and grooves (605) are provided through both ends from top to bottom.

2. The cable channel structure for a ring main unit according to claim 1, characterized in that: The lower mounting bracket (501) has a groove 1 (502) on its inner edge, and the upper mounting plate (601) has a groove 2 (602) on its inner edge. The groove 1 (502) and the groove 2 (602) have the same structure, and the cross-section of the groove 1 (502) and the groove 2 (602) is a "semi-circular" structure.

3. The cable channel structure for a ring main unit according to claim 2, characterized in that: The first groove (502) and the second groove (602) are provided in multiples, and the multiple first grooves (502) and second grooves (602) are distributed at equal intervals.

4. The cable channel structure for a ring main unit according to claim 1, characterized in that: Protective sleeves (503) are fixedly installed at both ends of the lower mounting bracket (501) away from the first groove (502). The protective sleeves (503) are rubber sleeves, and the protective sleeves (503) correspond one-to-one with the first groove (502).

5. The cable channel structure for a ring main unit according to claim 1, characterized in that: The mounting plate (505) has a positioning hole (506) through one end, and the insert (603) has a positioning hole (604) through one end, with the positioning hole (506) and the positioning hole (604) being positioned opposite each other.

6. The cable channel structure for a ring main unit according to claim 1, characterized in that: Mounting plate one (505) is fixedly mounted on one end away from the lower mounting bracket (501) with mounting plate two (508). Mounting plate two (508) has a positioning hole two (509) through it, and mounting plate two (508) is positioned opposite to mounting hole (4).

7. The cable channel structure for a ring main unit according to claim 1, characterized in that: The upper mounting plate (601) is plugged into the ring main unit frame (1) via groove three (605), and the lower mounting bracket (501) is plugged into the upper mounting plate (601) via slot two (507).

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