Outdoor ring main unit

Abstract

The utility model discloses an outdoor ring main unit. The outdoor ring main unit comprises a ring main unit body, a sealing assembly and a dustproof assembly, wherein the sealing assembly and the dustproof assembly are respectively arranged at two sides of the ring main unit body; the sealing assembly comprises a fixing plate and a fixing seat; a fixing plate is arranged on one side of the ring main unit body; a fixed seat is arranged on one side, far away from the ring main unit body, of the fixed plate; a threading hole is formed in the fixing plate; the dustproof assembly comprises a fixed box and a dustproof net; the other side of the ring main unit body is communicated and connected with the fixed box; and a dustproof net is arranged in the fixed box. According to the utility model, the closed assembly and the dustproof assembly are arranged on the ring main unit body to block the outlet on the ring main unit body, so that rainwater and dust are prevented from entering the ring main unit, and the waterproof and dustproof effects on the ring main unit are achieved. The ring main unit solves the technical problem that the service life of the ring main unit is affected due to the fact that parts in a cabinet body are damaged when rainwater and dust intrude into the cabinet body of an existing ring main unit.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, and in particular to an outdoor ring main unit. Background Technology

[0002] A ring main unit (RNB) is an electrical device consisting of a group of high-voltage switchgear housed in a metal or non-metal insulated cabinet or assembled into a modular ring network power supply unit. RNBs are composed of current displays, observation windows, and the cabinet itself. Based on the main insulation medium, RNBs can be classified into air-insulated RNBs and SF6 gas-insulated RNBs; composite-insulated RNBs using solid insulation materials have also emerged. Based on the cabinet structure, RNBs are classified into three types: bay-type, common-enclosure type, and a hybrid bay + common-enclosure type. Their core components utilize load switches and fuses, offering advantages such as simple structure, small size, low price, improved power supply parameters and performance, and enhanced power supply safety. Their main function is to provide a clear disconnection point for the line during high-voltage testing or maintenance. They are widely used in substations and prefabricated substations in load centers such as urban residential areas, high-rise buildings, large public buildings, and factories.

[0003] However, existing outdoor ring main units are only protected by the cabinet body. During use, rain or sandstorms can cause rainwater and sand to penetrate into the cabinet, damaging the internal components and affecting the service life of the ring main unit. Utility Model Content

[0004] This utility model provides an outdoor ring main unit that solves the technical problem that existing ring main units are susceptible to damage from rainwater and sand intrusion, which can damage internal components and affect the service life of the ring main unit.

[0005] This utility model provides an outdoor ring main unit, including a ring main unit cabinet and a sealing component and a dustproof component respectively disposed on both sides of the ring main unit cabinet;

[0006] The enclosure assembly includes a fixing plate and a fixing base;

[0007] The fixing plate is provided on one side of the ring main unit cabinet;

[0008] The fixing plate is provided with the fixing seat on the side away from the ring network cabinet body;

[0009] The fixing plate is provided with a wire through hole;

[0010] The dustproof assembly includes a mounting box and a dustproof mesh;

[0011] The other side of the ring main unit is connected to the fixing box;

[0012] The dustproof mesh is installed inside the fixing box.

[0013] Optionally, the fixing seat is provided with a double-threaded rod inside;

[0014] The fixed seat is rotatably connected to the double-threaded rod via a bearing seat.

[0015] Optionally, the outer wall of the double-threaded rod is threaded with a clamping plate;

[0016] One end of the double-threaded rod is connected to the motor.

[0017] Optionally, a sponge pad is movably connected inside the clamping plate;

[0018] A first spring is provided between the sponge pad and the clamping plate;

[0019] One end of the first spring is fixedly connected to one side of the sponge pad, and the other end is fixedly connected to the inner wall of the clamping plate.

[0020] Optionally, the outer wall of the fixing box is provided with a sliding groove that is slidably connected to the dustproof net;

[0021] The bottom of the fixing box has a ventilation opening.

[0022] Optionally, a handle is provided on one side of the dustproof net.

[0023] Optionally, an adjustment box is provided on the top of the dustproof net.

[0024] Optionally, a sliding hole is provided on one side of the adjustment box;

[0025] The adjustment box is provided with a hook on the side near the sliding hole;

[0026] The adjustment box has a sliding connection inside with a locking block that engages with the hook.

[0027] Optionally, a second spring is provided between the card block and the adjustment box;

[0028] One end of the second spring is connected to the bottom end of the locking block, and the other end is connected to the inner wall of the adjusting box.

[0029] Optionally, a brake block is slidably connected inside the adjustment box;

[0030] The brake block engages with the locking block;

[0031] One end of the brake block passes through the sliding hole and is connected to the moving torque.

[0032] As can be seen from the above technical solutions, this utility model has the following advantages:

[0033] This invention prevents rainwater and dust from entering the ring main unit by having the cable pass through a hole in the mounting plate and simultaneously covering the hole with a sealing component. Furthermore, this invention uses a dustproof netting component to cover the ventilation opening of the mounting box, preventing dust from entering the ring main unit's interior, which is connected to the mounting box, thus further enhancing dust protection. Attached Figure Description

[0034] 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.

[0035] Figure 1 A schematic diagram of the structure of an outdoor ring main unit provided for an embodiment of this utility model;

[0036] Figure 2 A three-dimensional schematic diagram of an outdoor ring main unit provided for an embodiment of this utility model;

[0037] Figure 3 A schematic diagram of the structure of a closed component provided for an embodiment of the utility model;

[0038] Figure 4 A schematic diagram of the structure of a dustproof component provided for an embodiment of the utility model;

[0039] Figure 5 This is a schematic diagram of the structure of an adjustment box provided for an embodiment of the utility model.

[0040] The meanings of the reference numerals in the attached figures are as follows:

[0041] 1. Ring main unit cabinet; 2. Enclosure components; 211. Fixing plate; 212. Fixing base; 213. Double-ended threaded rod; 214. Clamping plate; 215. Motor; 216. First spring; 217. Sponge pad; 3. Dustproof components; 311. Fixing box; 312. Dustproof net; 313. Handle; 314. Adjustment box; 315. Hook; 316. Locking block; 317. Second spring; 318. Braking block; 319. Moving torque. Detailed Implementation

[0042] This utility model provides an outdoor ring main unit to solve the technical problem that existing ring main units are damaged by rainwater and sand intrusion, which affects the service life of the ring main unit.

[0043] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0044] Example 1

[0045] Please see Figures 1 to 4 , Figure 1 This is a structural schematic diagram of an outdoor ring main unit provided in Embodiment 1 of this utility model.

[0046] This utility model provides an outdoor ring main unit, including a ring main unit body 1 and a sealing component 2 and a dustproof component 3 respectively disposed on both sides of the ring main unit body 1; the sealing component 2 includes a fixing plate 211 and a fixing seat 212; the fixing plate 211 is disposed on one side of the ring main unit body 1; the fixing seat 212 is disposed on the side of the fixing plate 211 away from the ring main unit body 1; the fixing plate 211 has a wire through hole; the dustproof component 3 includes a fixing box 311 and a dustproof net 312; the other side of the ring main unit body 1 is connected to the fixing box 311; the dustproof net 312 is disposed inside the fixing box 311.

[0047] It should be noted that a sealing component 2 is provided on the rear side of the ring main unit cabinet 1. The sealing component 2 prevents rainwater or dust from entering the interior of the ring main unit cabinet 1 through the cable outlets on the cabinet. A dustproof component 3 is provided on the front side of the ring main unit cabinet 1. The dustproof component 3 prevents rainwater or dust from entering the interior of the ring main unit cabinet 1 through the front opening, thus achieving the effect of preventing rainwater and dust from entering the interior of the ring main unit cabinet 1 through the sealing component 2 and the dustproof component 3.

[0048] In practical implementation, the enclosure component 2 includes a fixing plate 211 and a fixing seat 212. The fixing plate 211 covers the rear side of the ring main unit cabinet 1, protecting the cabinet from rain and dust. The fixing plate 211 also has a cable pass-through hole, facilitating the insertion of cables into the ring main unit through the cable pass-through hole. The fixing seat 212 is located on the side of the fixing plate 211 away from the ring main unit cabinet 1, and is used to fix other components of the enclosure component 2.

[0049] The dustproof component 3 includes a fixing box 311 and a dustproof net 312. The fixing box 311 is connected to the ring main unit 1 and is located on the front side of the ring main unit 1. The fixing box 311 is used to fix and block rainwater or dust from entering the ring main unit from the front side of the ring main unit 1. The dustproof net 312 is also slidably connected inside the fixing box 311 to further enhance the dustproof effect.

[0050] Example 2

[0051] Please see Figure 1 and Figure 3 , Figure 1 This is a structural schematic diagram of an outdoor ring main unit provided in Embodiment 2 of this utility model.

[0052] This utility model provides an outdoor ring main unit, in which a double-threaded rod 213 is provided inside the fixing base 212, and the fixing base 212 is rotatably connected to the double-threaded rod 213 through a bearing seat. A clamping plate 214 is threadedly connected to the outer wall of the double-threaded rod 213; one end of the double-threaded rod 213 is connected to a motor 215. A sponge pad 217 is movably connected inside the clamping plate 214; a first spring 216 is provided between the sponge pad 217 and the clamping plate 214; one end of the first spring 216 is fixedly connected to one side of the sponge pad 217, and the other end is fixedly connected to the inner wall of the clamping plate 214.

[0053] It should be noted that the fixed base 212 is internally equipped with a bearing seat and a double-threaded rod 213, so that the fixed base 212 is rotatably connected to the double-threaded rod 213 through the bearing seat. The outer wall of the double-threaded rod 213 is threadedly connected to a clamping plate 214, and one end of the double-threaded rod 213 is connected to a motor 215. By driving the motor 215, the output end of the motor 215 acts on the double-threaded rod 213 to rotate, which facilitates the clamping plate 214 to move closer to or away from the fixed plate 211, so as to tightly block the wire hole or leave a gap for the cable.

[0054] A sponge pad 217 is movably connected inside the clamping plate 214. The sponge pad 217 can absorb water or block dust from passing through the cable hole. A first spring 216 is provided between the sponge pad 217 and the clamping plate 214, which allows the first spring 216 to stretch the sponge pad 217 to tightly wrap the outer wall of the cable. The elasticity of the first spring 216 can adapt to cables of different widths.

[0055] In practice, the cable enters the ring main unit through the cable pass-through hole in the fixing plate 211. The motor 215 is driven, causing the double-threaded rod 213 at its output end to rotate inside the fixing base 212, thereby controlling the position of the clamping plate 214 on the outer wall of the double-threaded rod 213. When there is no cable inside the cable pass-through hole, the motor 215 is driven, causing the double-threaded rod 213 at its output end to move the clamping plate 214, so that the upper or lower half of the clamping plate 214 covers the cable pass-through hole, preventing rainwater and dust from entering. When there is a cable inside the cable pass-through hole, the motor 215 is driven, causing the double-threaded rod 213 at its output end to move the clamping plate 214, leaving a gap between the clamping plate 214 and the cable pass-through hole, thus limiting and fixing the cable. Then, the first spring 216 causes the sponge pad 217 to surround the outer wall of the cable, thereby preventing rainwater and dust from entering the ring main unit.

[0056] Example 3

[0057] Please see Figures 1 to 5 , Figure 1 This is a structural schematic diagram of an outdoor ring main unit provided in Embodiment 3 of this utility model.

[0058] This utility model provides an outdoor ring main unit. The outer wall of the fixing box 311 has a sliding groove for sliding connection with a dustproof net 312; the bottom of the fixing box 311 has a ventilation opening. A handle 313 is provided on one side of the dustproof net 312. An adjusting box 314 is provided on the top of the dustproof net 312. A sliding hole is provided on one side of the adjusting box 314; a hook 315 is provided on the side of the adjusting box 314 near the sliding hole; a locking block 316 is slidably connected inside the adjusting box 314 and engages with the hook 315. A second spring 317 is provided between the locking block 316 and the adjusting box 314; one end of the second spring 317 is connected to the bottom end of the locking block 316, and the other end is connected to the inner wall of the adjusting box 314. A braking block 318 is slidably connected inside the adjusting box 314; the braking block 318 engages with the locking block 316; one end of the braking block 318 passes through the sliding hole and connects to a moving knob 319.

[0059] It should be noted that the bottom of the fixing box 311 has a ventilation opening. To prevent dust from entering the ring main unit connected to the fixing box 311 through the ventilation opening, a dustproof net 312 is used to block the dust at the ventilation opening. Specifically, the dustproof net 312 is fixed on both sides using a fixing rod. A handle 313 is provided on the fixing rod, and an adjustment box 314 is provided at the top of the fixing rod. That is, an adjustment box 314 is provided at the top of the dustproof net 312. The adjustment box 314 is used to fix or clip the dustproof net 312 onto the fixing box 311.

[0060] A hook 315 is provided on one side of the adjustment box 314. The adjustment box 314 is secured to the fixed box 311 by the hook 315, thereby fixing the dustproof net 312. Optionally, a locking hole adapted to the hook 315 can also be provided on the fixed box 311. When the hook 315 is engaged in the locking hole, the connection between the adjustment box 314 and the fixed box 311 can be further strengthened.

[0061] The adjustment box 314 has a sliding connection of a locking block 316 inside. The top of the locking block 316 is engaged with the hook 315. The outer wall of the locking block 316 has a slot. The locking block 316 is engaged with one end of the brake block 318 through the slot. The other end of the brake block 318 passes through the sliding hole on the adjustment box 314 and is fixedly connected to the moving torque 319. By moving the moving torque 319, the brake block 318 is controlled to be locked in the slot of the locking block 316 or moved away from the locking block 316, thereby restricting or releasing the locking block 316.

[0062] In practice, the control handle 313 inserts the dustproof net 312 into the slide groove inside the fixing box 311, which is located above the vent. The adjusting box 314 on the top of one side of the dustproof net 312 is fixed to the fixing box 311 to fix the dustproof net 312 on this side. The remaining dustproof net 312 is slid through the slide groove until the dustproof net 312 covers the vent of the fixing box 311, and the adjusting box 314 on the top of the other side of the dustproof net 312 is fixed to the fixing box 311.

[0063] Specifically, because the locking block 316 on the adjusting box 314 is trapezoidal in shape, the locking block 316 compresses the second spring 317, thereby engaging the locking block 316 with the hook 315 to secure the dustproof net 312. Conversely, sliding the moving torque 319 causes the brake block 318 at one end of the moving torque 319 to press the locking block 316 along the groove on the outer wall of the locking block 316, thus disengaging the locking block 316 from the hook and allowing the dustproof net 312 to be removed from the fixing box 311 for easy cleaning. Since the opening of the fixing box 311 faces downwards, rainwater is unlikely to enter, but dust cannot be prevented from entering the ring main unit through the ventilation opening of the fixing box 311. Therefore, the dustproof net 312 is installed to prevent dust, achieving a dustproof effect for the ring main unit.

[0064] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0065] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An outdoor ring main unit, characterized in that, It includes a ring main unit cabinet and a sealing component and a dustproof component respectively disposed on both sides of the ring main unit cabinet cabinet; The enclosure assembly includes a fixing plate and a fixing base; The fixing plate is provided on one side of the ring main unit cabinet; The fixing plate is provided with the fixing seat on the side away from the ring network cabinet body; The fixing plate is provided with a wire through hole; The dustproof assembly includes a mounting box and a dustproof mesh; The other side of the ring main unit is connected to the fixing box; The dustproof mesh is installed inside the fixing box.

2. The outdoor ring main unit according to claim 1, characterized in that, The fixed base is internally provided with a double-threaded rod; The fixed seat is rotatably connected to the double-threaded rod via a bearing seat.

3. The outdoor ring main unit according to claim 2, characterized in that, The outer wall of the double-threaded rod is threaded with a clamping plate. One end of the double-threaded rod is connected to the motor.

4. The outdoor ring main unit according to claim 3, characterized in that, The clamping plate is internally connected to a sponge pad; A first spring is provided between the sponge pad and the clamping plate; One end of the first spring is fixedly connected to one side of the sponge pad, and the other end is fixedly connected to the inner wall of the clamping plate.

5. The outdoor ring main unit according to claim 1, characterized in that, The outer wall of the fixing box is provided with a sliding groove that is slidably connected to the dustproof net. The bottom of the fixing box has a ventilation opening.

6. The outdoor ring main unit according to claim 5, characterized in that, A handle is provided on one side of the dustproof net.

7. The outdoor ring main unit according to claim 1, characterized in that, An adjustment box is provided at the top of the dustproof net.

8. The outdoor ring main unit according to claim 7, characterized in that, A sliding hole is provided on one side of the adjustment box; The adjustment box is provided with a hook on the side near the sliding hole; The adjustment box has a sliding connection inside with a locking block that engages with the hook.

9. The outdoor ring main unit according to claim 8, characterized in that, A second spring is provided between the card block and the adjustment box; One end of the second spring is connected to the bottom end of the locking block, and the other end is connected to the inner wall of the adjusting box.

10. The outdoor ring main unit according to claim 9, characterized in that, The adjustment box is internally slidably connected to a brake block; The brake block engages with the locking block; One end of the brake block passes through the sliding hole and is connected to the moving torque.

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