Combined splicing structure of ring main unit

Abstract

The utility model belongs to the field of ring main units, and particularly relates to a combined splicing structure of a ring main unit, which comprises a ring main unit body. The side surface of the ring main unit body is provided with a mounting groove, the interior of the mounting groove is fixedly connected with a quick-release assembly, the quick-release assembly comprises a mounting block fixedly connected to the interior of the mounting groove, the interior of the mounting block is provided with a sliding groove, the interior of the sliding groove is slidably connected with a support, and the surface of the support is sleeved with an insertion rod hole; through the linkage design of an installation block, a support, an insertion rod and a spring in the quick release assembly, a sliding rod is driven by pressing a protruding part of the support to compress the spring so that the insertion rod can be separated from an insertion hole of a connection block, quick separation of two ring main unit bodies is achieved, and after the connection block is inserted into a clamping groove, the spring automatically pushes the sliding rod to reset. And the insertion rods distributed in an axial symmetry mode are synchronously inserted into the insertion holes to complete locking, the splicing and dismounting efficiency is remarkably improved, and the problem that a traditional splicing structure is tedious in operation is solved.

Description

Technical Field

[0001] This utility model relates to the field of ring main units, specifically a combined splicing structure for ring main units. Background Technology

[0002] Ring main unit (RNU) is an important electrical device. It is usually installed in a metal or non-metal insulated cabinet and mainly consists of load switches, fuses, etc. RNU can be used for ring network power supply, connecting multiple power distribution lines to improve the reliability and flexibility of power supply. It is relatively small in size and compact in structure, making it easy to install in places with limited space such as urban streets and residential areas.

[0003] In the prior art, such as in publication number CN208272403U, a prefabricated structure for a modular ring main unit is disclosed. This structure includes side panels mounted on a base plate. A first ring beam is installed on the top left end of the side panel, and a second ring beam is installed on its top right end. A cover plate is embedded in the top of the second ring beam. The left end of the second ring beam is sealed to the right end of the first ring beam. The side panel includes two opposing long side panels and two opposing end side panels. Multiple cable sealing joints are provided on the short side panel near the second ring beam. An inspection ladder is provided on one of the long side panels near the second ring beam. Ventilation grilles are provided on both the front and rear side panels of the first ring beam, and sealing layers are provided inside these grilles. Multiple cable sealing joints are provided on the sealing layers. This invention solves the problems of condensation and water leakage in prefabricated foundations, ensuring the safe operation of the ring main unit.

[0004] While the aforementioned patent achieves a leak-proof effect through the cooperation of multiple sealing structures, it lacks a structure for quick assembly and disassembly of the assembly components when splicing multiple ring main units. Furthermore, it lacks a structure for monitoring the splicing status, resulting in poor safety and a high risk of separation among multiple ring main units. Therefore, a combined splicing structure for ring main units is proposed to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, there is a lack of structures for quickly assembling and disassembling components when splicing multiple ring main units; at the same time, there is a lack of structures to monitor the splicing status, resulting in poor safety and the potential for multiple ring main units to separate. This utility model proposes a combined splicing structure for ring main units.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: the combined splicing structure of the ring network cabinet of this utility model includes a ring network cabinet body; the side of the ring network cabinet body is provided with an installation groove, and a quick-release component is fixedly connected inside the installation groove; the side of another ring network cabinet body is fixedly connected with a connecting block; and a monitoring component is fixed in a groove on the surface of the ring network cabinet body.

[0007] The quick-release assembly includes a mounting block fixedly connected inside the mounting groove. The mounting block has a sliding groove inside, and a bracket is slidably connected inside the sliding groove. A plug rod is sleeved on the surface of the bracket. The sliding groove of the mounting block has a slot that matches the connecting block. The plug rod is inserted into the slot and a hole opened on the side of the connecting block.

[0008] The monitoring component includes a device box with an infrared sensor controller at its side opening and a remote control structure, controller, and buzzer fixed on its inner wall.

[0009] Preferably, a sleeve is fixed to the inner sidewall of the groove of the mounting block, and a spring and a sliding rod are sleeved inside the sleeve. The sliding rod corresponds to the position of the insertion rod and is driven by the spring to press against the bracket.

[0010] Preferably, one end of the bracket extends and slides through the surface of the ring main unit to form a protrusion. When the protrusion is pressed, the slide bar compresses the spring on the left side, causing the plug rod sleeved on the surface of the bracket to disengage from the plug hole.

[0011] Preferably, the infrared sensor controller is electrically connected to the controller, and the controller is also connected to the buzzer and the remote control structure.

[0012] Preferably, the insertion rods are symmetrically distributed on both sides of the bracket, and after the connecting block is inserted into the slot, the spring pushes the slide rod to make the insertion rods synchronously insert into the insertion holes of the connecting block.

[0013] Preferably, the infrared sensor controller is configured to detect changes in the spacing between ring main units and trigger a buzzer, and the remote control structure is configured to remotely turn off the buzzer.

[0014] The advantages of this utility model are:

[0015] 1. This utility model utilizes the linkage design of the mounting block, bracket, insertion rod, and spring in the quick-release assembly. By pressing the protruding part of the bracket, the sliding rod is driven to compress the spring, causing the insertion rod to disengage from the insertion hole of the connecting block, thus achieving rapid separation of the two ring main units. After the connecting block is inserted into the slot, the spring automatically pushes the sliding rod to reset, allowing the symmetrically distributed insertion rods to be inserted into the insertion hole simultaneously to complete the locking. This significantly improves the efficiency of splicing and disassembly, and solves the problem of cumbersome operation in traditional splicing structures.

[0016] 2. This utility model, through the coordinated operation of the infrared sensor controller, controller and buzzer in the monitoring component, when the infrared sensor controller detects an abnormality in the spacing of the ring network cabinet, immediately triggers the buzzer to issue an alarm. At the same time, the remote control structure supports remotely turning off the alarm, realizing real-time monitoring and abnormal response of the splicing status, effectively avoiding safety hazards caused by accidental separation, and making up for the deficiency of traditional structures in lacking splicing status monitoring. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the quick-release component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the monitoring component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the disassembled structure of this utility model.

[0022] In the diagram: 1. Ring main unit body; 2. Quick-release assembly; 21. Mounting block; 22. Bracket; 23. Insert rod; 24. Sleeve; 25. Spring; 26. Slide rod; 3. Connecting block; 4. Monitoring assembly; 41. Equipment box; 42. Infrared sensor controller; 43. Remote control structure; 44. Controller; 45. Buzzer. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] Please see Figures 1-4 As shown, a combined assembly structure of a ring main unit includes a ring main unit body 1; an installation groove is provided on the side of the ring main unit body 1, and a quick-release component 2 is fixedly connected inside the installation groove; a connecting block 3 is fixedly connected to the side of another ring main unit body 1; a monitoring component 4 is fixedly installed in a groove on the surface of the ring main unit body 1; the quick-release component 2 includes an installation block 21 fixedly connected inside the installation groove; a sliding groove is provided inside the installation block 21; a bracket 22 is slidably connected inside the sliding groove; a plug rod 23 is sleeved on the surface of the bracket 22; a slot matching the connecting block 3 is provided in the middle of the sliding groove of the installation block 21; the plug rod 23 is inserted into the slot and the insertion hole opened on the side of the connecting block 3;

[0025] During operation, the mounting block 21 is fixed in the mounting groove on the side of the ring main unit 1. The internal sliding groove is connected to the bracket 22. The surface of the bracket 22 is connected to the symmetrically distributed insertion rods 23 through the bearing sleeve. The middle of the sliding groove of the mounting block 21 is provided with a slot for locking the connecting block 3 on the side of another ring main unit 1. The connecting block 3 and the slot have corresponding insertion holes. The inner side wall of the sliding groove is fixed with a sleeve 24, which is fitted with a spring 25 and a sliding rod 26. One end of the sliding rod 26 abuts against the bracket 22. When the protrusion of the bracket 22 is pressed, the sliding rod 26 compresses the spring 25, causing the insertion rod 23 to disengage from the insertion hole. After release, the spring 25 pushes the sliding rod 26 to reset, and the insertion rod 23 is simultaneously inserted into the insertion hole of the connecting block 3 to complete the splicing and locking.

[0026] Furthermore, the monitoring component 4 includes an equipment box 41, with an infrared sensor controller 42 located at its side opening. A remote control structure 43, a controller 44, and a buzzer 45 are fixed to the inner wall. The infrared sensor controller 42 is electrically connected to the controller 44, and the controller 44 is simultaneously connected to the buzzer 45 and the remote control structure 43. The infrared sensor controller 42 is configured to detect changes in the ring network cabinet spacing and trigger the buzzer 45, while the remote control structure 43 is configured to remotely turn off the buzzer 45.

[0027] During operation, the monitoring component 4 includes an equipment box 41, with a Honeywell IS215 infrared sensor controller 42 installed at its side opening to detect changes in the spacing of the ring main unit. Inside the equipment box 41 are fixed a Siemens 6ES7 series remote control structure 43, an STM32F4 controller 44, and a TDK PS1240P01BT buzzer 45. The infrared sensor controller 42 is connected to the STM32F4 controller 44 via a signal line. When the detected spacing exceeds the set threshold, the controller 44 triggers the buzzer 45 to sound an alarm. At the same time, the remote control structure 43, model ESP32-WROOM-32, receives a remote command via a wireless module to turn off the buzzer 45.

[0028] Furthermore, a sleeve 24 is fixed to the inner wall of the groove of the mounting block 21. A spring 25 and a slide rod 26 are sleeved inside the sleeve 24. The slide rod 26 corresponds to the position of the insertion rod 23 and is driven by the spring 25 to press against the bracket 22.

[0029] During operation, the linkage design of sleeve 24, spring 25, and slide rod 26, through the sleeve 24 fixed to the inner side wall of the groove of mounting block 21, and the spring 25 and slide rod 26 connected inside, the slide rod 26 is driven by spring 25 to press against bracket 22, realizing the automatic reset and stable locking of the insertion rod 23; when the connecting block 3 is inserted into the slot, spring 25 pushes slide rod 26 to press against bracket 22, so that the insertion rod 23 is accurately inserted into the insertion hole of connecting block 3, avoiding manual adjustment and improving splicing stability; the corresponding position of slide rod 26 and insertion rod 23 ensures uniform force and reduces wear on insertion rod 23.

[0030] Furthermore, one end of the bracket 22 extends and slides through the surface of the ring main unit 1 to form a protrusion. When the protrusion is pressed, the slide rod 26 compresses the spring 25 on the left side, causing the insertion rod 23 sleeved on the surface of the bracket 22 to disengage from the insertion hole.

[0031] During operation, the protrusion of the bracket 22 extends to the surface of the ring main unit 1. By pressing the protrusion, the bracket 22 is directly driven to slide. The slide rod 26 compresses the spring 25 to disengage the plug rod 23 from the plug hole of the connecting block 3, enabling quick disassembly with one hand. The sliding path of the bracket 22 is restricted by the slide groove to avoid displacement that could cause the plug rod 23 to jam. The pressing operation is labor-saving and efficient.

[0032] Furthermore, the insertion rods 23 are symmetrically distributed on both sides of the bracket 22. After the connecting block 3 is inserted into the slot, the spring 25 pushes the slide rod 26 to make the insertion rods 23 be inserted into the insertion holes of the connecting block 3 simultaneously.

[0033] During operation, the insertion rods 23 are symmetrically distributed on both sides of the bracket 22. Combined with the synchronous action of the spring 25 pushing the slide rod 26, the insertion rods 23 on both sides are simultaneously inserted into the insertion holes of the connecting block 3, eliminating splicing misalignment caused by uneven force on one side. After the connecting block 3 is inserted into the slot, the spring 25 applies force evenly to the bracket 22 through the slide rod 26 to ensure the coaxiality of the insertion rods 23 and the insertion holes, thereby improving splicing accuracy. The insertion rods 23 are made of alloy steel with a hard chrome plating treatment to enhance wear resistance and shear resistance, and extend service life.

[0034] Working principle: Through the collaborative design of quick-release component 2 and monitoring component 4, the ring main unit can be efficiently spliced, stably locked and monitored in real time, forming a closed-loop system that links mechanical and electronic components. In practice, when two ring main units need to be spliced, the operator aligns the connecting block 3 of one ring main unit with the mounting block 21 slot of the quick-release component 2 of the other ring main unit and inserts it. The insertion of the connecting block 3 pushes the bracket 22 to slide along the slide groove. The slide rod 26 presses against the bracket 22 under the elastic restoring force of the spring 25, forcing the axisymmetrically distributed insertion rods 23 to be inserted into the socket of the connecting block 3 simultaneously, completing the mechanical locking. At the same time, the infrared sensor controller 42 of the monitoring component 4 detects the distance between the two ring main units in real time. If the distance is within the set threshold, the controller 44 remains silent. If the distance exceeds the limit due to accidental separation, the infrared sensor controller 42 immediately sends a signal to the controller 44, triggering the buzzer 45 to sound an alarm, and supports remote alarm shutdown through the remote control structure 43. When the ring main unit needs to be disassembled, the operator presses the protrusion of the bracket 22 to drive the insertion rod 23 out of the socket. At this time, the connecting block 3 can be pulled out freely. The monitoring component 4 detects the sudden change in distance at the moment of separation and triggers an alarm to indicate the abnormality until the remote control structure 43 receives the instruction to shut down the buzzer 45. In the whole solution, the quick-release component 2 ensures the stability of splicing and the efficiency of disassembly and assembly through the elastic reset of the spring 25 and the axially symmetrical distribution design of the insertion rod 23. The monitoring component 4 realizes real-time feedback and abnormal response of splicing status through infrared sensing and electronic control. The combination of the two forms a complete closed-loop system that combines fast operation, reliable locking and intelligent monitoring.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined splicing structure of a ring main unit, characterized in that: The ring main unit includes a ring main unit body (1); the side of the ring main unit body (1) is provided with an installation groove, and a quick-release component (2) is fixedly connected inside the installation groove; a connecting block (3) is fixedly connected to the side of another ring main unit body (1); and a monitoring component (4) is fixed in the groove on the surface of the ring main unit body (1). The quick-release assembly (2) includes a mounting block (21) fixedly connected inside the mounting groove. The mounting block (21) has a sliding groove inside, and a bracket (22) is slidably connected inside the sliding groove. A plug rod (23) is sleeved on the surface of the bracket (22). The middle of the sliding groove of the mounting block (21) has a slot that matches the connecting block (3). The plug rod (23) is inserted into the slot and the insertion hole opened on the side of the connecting block (3). The monitoring component (4) includes a device box (41), an infrared sensor controller (42) is provided at the side opening, and a remote control structure (43), a controller (44) and a buzzer (45) are fixed on the inner wall.

2. The combined splicing structure of the ring main unit according to claim 1, characterized in that: The inner wall of the groove of the mounting block (21) is fixed with a sleeve (24), and a spring (25) and a slide rod (26) are sleeved inside the sleeve (24). The slide rod (26) corresponds to the position of the insertion rod (23) and is driven by the spring (25) to press against the bracket (22).

3. The combined splicing structure of the ring main unit according to claim 1, characterized in that: One end of the bracket (22) extends and slides through the surface of the ring main unit (1) to form a protrusion. When the protrusion is pressed, the slide rod (26) compresses the spring (25) on the left side, causing the plug rod (23) sleeved on the surface of the bracket (22) to disengage from the plug hole.

4. The combined splicing structure of the ring main unit according to claim 1, characterized in that: The infrared sensor controller (42) is electrically connected to the controller (44), and the controller (44) is also connected to the buzzer (45) and the remote control structure (43).

5. The combined splicing structure of the ring main unit according to claim 1, characterized in that: The insertion rods (23) are symmetrically distributed on both sides of the bracket (22). After the connecting block (3) is inserted into the slot, the spring (25) pushes the slide rod (26) to make the insertion rods (23) be inserted into the insertion holes of the connecting block (3) simultaneously.

6. The combined splicing structure of the ring main unit according to claim 1, characterized in that: The infrared sensor controller (42) is configured to detect changes in the spacing between ring network cabinets and trigger a buzzer (45), and the remote control structure (43) is configured to remotely turn off the buzzer (45).

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