A connecting piece between ring main units

Abstract

The utility model discloses a kind of parallel cabinet connecting pieces between ring main unit cabinet, belong to ring main unit technical field, including first mounting plate, second mounting plate, adjusting mechanism fixed in first mounting plate and fixed mechanism fixed in second mounting plate, the adjusting mechanism includes first sleeve and the push rod in the first sleeve, the front end of the push rod is equipped with fixed block;The fixed mechanism includes second sleeve, the second sleeve is equipped with the clamping block that can be reset under the driving of elastic member;The adjusting mechanism further includes operating handle and the sliding block of slidingly being arranged on the push rod.The utility model is set by being able to extend into the fixed block of fixed mechanism, and in fixed mechanism, the clamping block that can be reset under the automatic reset clamping of elastic member driving is set, solve the problem that ring main unit parallel cabinet connection needs to use tool to carry out tedious alignment and fastening, operation is complex and inefficient in prior art.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, and in particular to a connecting component for connecting ring main unit cabinets. Background Technology

[0002] Ring main units (RNBs), as core switching equipment in power distribution networks, are widely used in urban power grid construction and renovation. In actual engineering projects, multiple RNB units are typically installed in parallel to form a complete switchgear array; this process is called parallel installation. To ensure the stability of the overall structure and the reliability of the electrical connections after parallel installation, adjacent cabinets must be secured with reliable connectors.

[0003] Currently, the most common way to connect ring main units is by directly tightening bolts. In practice, the pre-drilled bolt holes on the side panels of the two adjacent units need to be precisely aligned. Then, the installer inserts the bolts through the narrow gap between the units and tightens them with nuts.

[0004] However, during on-site installation, this traditional bolted connection method revealed its operational inconveniences. Because the ring main unit cabinet is quite heavy, accurately aligning the bolt holes on both sides is a time-consuming and labor-intensive task. Furthermore, installers need to perform tightening operations within narrow gaps between the cabinets, which not only limits the operating space but also typically requires multiple people and specialized tools, significantly reducing the overall efficiency of the cabinet installation. When it's necessary to inspect or replace a cabinet, removing these connecting bolts also presents operational difficulties, affecting the timeliness and convenience of maintenance work.

[0005] Therefore, this utility model proposes a connecting component between ring main unit cabinets to address the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a connecting component for connecting ring main unit cabinets, which aims to improve the problems of complex connection operation, time-consuming and labor-intensive operation, and inconvenient assembly and disassembly of the existing connecting components for connecting ring main unit cabinets.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a connecting component between ring main unit cabinets, comprising: a first mounting plate, a second mounting plate, an adjustment mechanism fixed to the first mounting plate, and a fixing mechanism fixed to the second mounting plate.

[0008] The adjustment mechanism includes a first sleeve and a push rod inside the first sleeve, with a fixing block at the front end of the push rod; the fixing mechanism includes a second sleeve, with a locking block inside the second sleeve that can be reset under the drive of an elastic element; the adjustment mechanism also includes an operating handle and a slider slidably disposed on the push rod.

[0009] The fixing block can extend into the second sleeve and engage with the locking block; the slider is driven by the operating handle and can move forward to push open the locking block to release the lock.

[0010] Preferably, the elastic element in the fixing mechanism is a second spring; the locking block is connected to a sliding column, which can slide in a second groove opened on the second sleeve, and the second spring, the sliding column and the second sleeve are connected.

[0011] Preferably, the fixing mechanism further includes a limiting ring on the sliding column.

[0012] Preferably, the operating handle drives the slider to slide along the push rod via a connecting block and a push block.

[0013] Preferably, the adjusting mechanism is further provided with a first spring, which is located between the push block and the push rod, and is used to release the push rod after it is unlocked.

[0014] Preferably, the first sleeve has a first groove for guiding the sliding of the operating handle.

[0015] Preferably, the first mounting plate is provided with a first threaded hole for mounting and fixing, and the second mounting plate is provided with a second threaded hole for mounting and fixing.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by setting a fixing block that can extend into the fixing mechanism, and setting a locking block that can automatically reset and engage under the drive of the elastic element in the fixing mechanism, the problem of cumbersome alignment and fastening, complicated operation and low efficiency required by tools when connecting ring network cabinets in parallel is solved. It achieves the effect of automatic locking simply by pushing the cabinets together, which greatly simplifies the installation steps and improves the efficiency of connecting cabinets.

[0018] 2. In this utility model, by setting an operating handle and a slider linked to the handle on the adjustment mechanism, the slider is used to push open the locking block, which solves the problem that the disassembly of the connecting parts in the prior art is also cumbersome and not conducive to quick maintenance or relocation. It achieves the effect of quick unlocking by simply pushing and pulling the operating handle, making cabinet separation convenient and quick, and enhancing the convenience of use. Attached Figure Description

[0019] Figure 1 A perspective view of a connecting component between ring main unit cabinets proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of an adjustment mechanism for a connecting component between ring main unit cabinets proposed in this utility model.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of a fixing mechanism for a connecting component between ring main unit cabinets proposed in this utility model;

[0023] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0024] Legend:

[0025] 1. First mounting plate; 2. Second mounting plate; 3. Adjustment mechanism; 301. First sleeve; 302. First slide groove; 303. Connecting block; 304. Push rod; 305. First spring; 306. Push block; 307. Fixing block; 308. Slider; 309. Operating handle; 4. Fixing mechanism; 401. Second sleeve; 402. Second slide groove; 403. Sliding column; 404. Locking block; 405. Limiting ring; 406. Second spring; 5. First threaded hole; 6. Second threaded hole. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-5 The present invention provides an embodiment of a ring main unit cabinet connection component, which aims to solve the problems of complex connection operation, time-consuming and labor-intensive operation and inconvenient unlocking when merging ring main units in the prior art.

[0028] The connecting component between the ring main unit cabinets includes an adjusting mechanism 3 and a fixing mechanism 4 that cooperate with each other. The adjusting mechanism 3 is fixedly connected to the first mounting plate 1, and the fixing mechanism 4 is fixedly connected to the second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 are respectively used to fix the ring main unit cabinets to be connected to the side walls of the two cabinets.

[0029] The adjusting mechanism 3 includes a first sleeve 301 and a push rod 304 inside the first sleeve 301. A fixing block 307 is fixedly connected to the front end of the push rod 304. The fixing mechanism 4 includes a second sleeve 401. A locking block 404 is movably disposed inside the second sleeve 401. When the cabinets are connected, the fixing block 307 of the adjusting mechanism 3 can extend into the second sleeve 401 of the fixing mechanism 4. At this time, the fixing block 307 pushes the locking block 404. After the fixing block 307 is fully inserted, the locking block 404 is reset under the drive of the elastic element and locks the fixing block 307, thereby realizing the quick connection of the two cabinets.

[0030] To unlock, the adjustment mechanism 3 also includes an operating handle 309 and a slider 308 slidably mounted on the push rod 304. The operating handle 309 is used to drive the slider 308 to move forward along the axis of the push rod 304. The forward-moving slider 308 can push open the locking block 404 in the fixing mechanism 4, so that the locking block 404 is disengaged from the fixing block 307, thereby releasing the locked state.

[0031] The elastic element in the fixing mechanism 4 is a second spring 406; the locking block 404 is connected to a sliding column 403, which is slidably installed in the second sliding groove 402 on the second sleeve 401. The second spring 406 is between the sliding column 403 and the second sleeve 401, providing a driving force for the reset of the sliding column 403 and the locking block 404; when the fixing block 307 enters the second sleeve 401, its front end pushes the locking block 404, and the locking block 404 drives the sliding column 403 to slide along the second sliding groove 402 and press. The second spring 406 is compressed. When the fixed block 307 completely passes the locking block 404, the elastic energy stored in the second spring 406 is released, driving the slide column 403 to quickly slide the locking block 404 downward to reset, thereby achieving reliable locking of the fixed block 307. In order to further improve the stability of the movement, the fixing mechanism 4 also includes a limiting ring 405 on the slide column 403 to prevent it from slipping. The presence of the limiting ring 405 ensures the accuracy of the stroke and the structural reliability of the slide column 403 during the reciprocating sliding process.

[0032] The operating handle 309 drives the slider 308 to slide along the push rod 304 via the connecting block 303 and the push block 306. Specifically, the operating handle 309 is connected to the connecting block 303, the connecting block 303 is connected to the push block 306, and the push block 306 is connected to the slider 308. When the operating handle 309 is pushed, the force is transmitted to the slider 308 in sequence through the connecting block 303 and the push block 306, causing it to produce the expected sliding displacement.

[0033] The adjustment mechanism 3 is also provided with a first spring 305, which is located between the push block 306 and the push rod 304. During the unlocking operation, when the push block 306 and the slider 308 move forward, the first spring 305 is stretched or compressed to store elastic energy. When the operating handle 309 is released and the locking block 404 is pushed open, the first spring 305 releases its elastic energy, driving the push rod 304 and its front end fixing block 307 to quickly retract from the second sleeve 401, thereby achieving the reset after unlocking.

[0034] The first sleeve 301 has a first groove 302 for guiding the sliding of the operating handle 309. A part of the structure of the operating handle 309 is accommodated in the first groove 302 and slides along its length. This structure ensures the stability of the movement trajectory of the operating handle 309.

[0035] The first mounting plate 1 has several first threaded holes 5, and the second mounting plate 2 has several second threaded holes 6. By passing bolts through these threaded holes, the entire cabinet connector can be firmly installed on the side wall of the ring main unit.

[0036] Working principle: During the parallel installation, the ring main unit equipped with the adjustment mechanism 3 is pushed towards the ring main unit equipped with the fixing mechanism 4, so that the fixing block 307 of the adjustment mechanism 3 extends into the second sleeve 401 of the fixing mechanism 4. The front end of the fixing block 307 will push the locking block 404 upward, and the locking block 404 will drive the sliding column 403 to slide upward in the second sliding groove 402 and compress the second spring 406. When the rear end of the fixing block 307 completely passes the locking block 404, the locking block 404 is no longer pushed by the fixing block 307. At this time, the compressed second spring 406 releases its elasticity, driving the sliding column 403 and the locking block 404 to quickly slide down and reset, so that the locking block 404 is locked behind the fixing block 307, thereby realizing the automatic and rapid locking of the two ring main unit cabinets.

[0037] When unlocking and separation are required, push the operating handle 309 on the adjusting mechanism 3 inward. The operating handle 309 slides stably under the guidance of the first slide groove 302, and drives the connecting block 303 and the push block 306 in sequence, thereby pushing the slider 308 to slide forward along the push rod 304. During this process, the first spring 305 is stretched or compressed. The front end of the slider 308 pushes the locking block 404 in the fixing mechanism 4 upward, so that the locking block 404 and the fixing block 307 are released. At this time, release the operating handle 309, the first spring 305 returns to its original position, and its elasticity will pull the entire push rod 304 and the fixing block 307 backward, completely disengaging from the second sleeve 401, completing the unlocking action, and the two ring main units can be easily separated.

Claims

1. A connecting component for connecting ring main unit cabinets, comprising a first mounting plate (1) and a second mounting plate (2), wherein an adjusting mechanism (3) is fixed on the first mounting plate (1), and a fixing mechanism (4) cooperating with the adjusting mechanism (3) is fixed on the second mounting plate (2), characterized in that: The adjusting mechanism (3) includes a first sleeve (301) and a push rod (304) inside the first sleeve (301), and a fixing block (307) is provided at the front end of the push rod (304); the fixing mechanism (4) includes a second sleeve (401), and a locking block (404) is provided inside the second sleeve (401) that can be reset under the drive of an elastic element, for locking the fixing block (307) when the fixing block (307) extends into the second sleeve (401); The adjustment mechanism (3) further includes an operating handle (309) and a slider (308) slidably disposed on the push rod (304). The slider (308) is driven by the operating handle (309) to move forward and push open the locking block (404) to release the lock.

2. The connecting component between ring main unit cabinets according to claim 1, characterized in that, The elastic element in the fixing mechanism (4) is a second spring (406); the locking block (404) is connected to a sliding column (403), the sliding column (403) can slide in the second groove (402) opened on the second sleeve (401), and the second spring (406) is between the sliding column (403) and the second sleeve (401).

3. The connecting component between ring main unit cabinets according to claim 2, characterized in that, The fixing mechanism (4) also includes a limiting ring (405) on the slide (403) to prevent it from slipping.

4. The connecting component between ring main unit cabinets according to claim 1, characterized in that, The operating handle (309) drives the slider (308) to slide along the push rod (304) via the connecting block (303) and the push block (306).

5. The inter-cabinet connection component between ring main unit cabinets according to claim 4, characterized in that, The adjustment mechanism (3) is further provided with a first spring (305), which is located between the push block (306) and the push rod (304) and is used to release the push rod (304) after it is unlocked.

6. The connecting component between ring main unit cabinets according to claim 4, characterized in that, The first sleeve (301) has a first groove (302) for guiding the operation handle (309) to slide.

7. The connecting component between ring main unit cabinets according to claim 1, characterized in that, The first mounting plate (1) is provided with a first threaded hole (5) for mounting and fixing, and the second mounting plate (2) is provided with a second threaded hole (6) for mounting and fixing.

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