A fully insulated ring main unit that is easy to extend and connect to the main busbar

Abstract

This utility model discloses a fully insulated ring main unit that is easy to extend and connect to the main busbar, relating to the field of ring main units. It includes: a busbar interface on the top surface of the gas-insulated chamber, a branch outlet on the side of the gas-insulated chamber, a cabinet body fixedly connected to the bottom of the gas-insulated chamber, an inspection door on the front side of the cabinet body, and an air pump fixedly connected to the bottom of the inner side of the cabinet body. By pressing the arc-shaped guard plates at the four corners of the lower end of the cabinet body, users can easily position the ring main unit from multiple angles and adapt to different placement orientations. The driving limiters are pushed down and displaced, and the support wheels are rubbed and locked, thereby fixing the ring main unit in place. A steering mechanism provides stable support for the ring main unit and lifts it when needed for steering, facilitating steering adjustments by staff.

Description

Technical Field

[0001] This utility model relates to the field of network cabinets, specifically a fully insulated ring main unit that is easy to extend and connect to the main busbar. Background Technology

[0002] A ring main unit is an electrical device that houses a set of power transmission and distribution equipment in a metal or non-metal insulated cabinet or is assembled into a modular ring main unit. Its core components are load switches and fuses. It has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in distribution stations and box-type substations in load centers such as urban residential areas, high-rise buildings, large public buildings, and factories.

[0003] When the existing fully insulated ring main unit is extended and connected to the main bus, the two sets of ring main units need to be displaced and aligned. However, after the displacement is completed, the bottom pulleys are prone to causing the ring main unit to shift, requiring positioning and fixing. Moreover, the existing positioning methods are quite cumbersome and have room for improvement. Utility Model Content

[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a fully insulated ring main unit that is easy to extend and connect to the main busbar.

[0005] This utility model is implemented as follows: a fully insulated ring main unit that is easy to expand and connect to the main busbar is constructed. The device includes: a gas insulation chamber, a busbar interface on the top surface of the gas insulation chamber, a branch outlet on the side of the gas insulation chamber, a cabinet body fixedly connected to the bottom of the gas insulation chamber, an inspection door on the front side of the cabinet body, and an air pump fixedly connected to the bottom of the inner side of the cabinet body.

[0006] The features include: a positioning mechanism and a steering mechanism. Positioning mechanisms are provided at the four corners of the lower end of the cabinet, and a steering mechanism is provided at the bottom of the cabinet. The positioning mechanism further includes: mounting columns. Mounting columns are fixedly connected to the four corners of the lower end of the cabinet. A through-hole groove is provided inside the mounting column, and a gear rod is rotatably mounted inside the mounting column groove. Reserved sliding grooves are provided on the upper and lower parts of the front and left sides of the mounting column. A rack is slidably connected to the inner side of the four sets of reserved sliding grooves. The rear end of the rack meshes with the upper right side and back of the gear rod, and the rear ends of the rack are distributed at right angles to the upper part of the gear rod. A connecting rod is fixedly connected to the front end of the rack, and the rear end of the connecting rod passes through and slidably connects to the central through hole of a fixing ring. The fixing ring is fixed... The connecting rod is connected to the middle of the inner side of the reserved slide groove. A return spring is sleeved at the front end of the connecting rod, and the rear end of the return spring is fixedly connected to the front side of the fixing ring. The front end of the connecting rod is fixedly connected to the middle of the inner side of the arc-shaped guard plate. The lower end of the gear rod is threaded to the inner side of the sleeve. The lower end of the sleeve is vertically slidably connected to the bottom of the mounting column. A limit component is fixedly connected to the bottom of the lower end of the sleeve. Two sets of load-bearing plates are fixedly connected to the bottom of the mounting column. Support wheels are rotatably connected to the inner side of the lower end of the two sets of load-bearing plates. The support wheels are composed of a short transmission shaft fixedly connected to the inner center of two sets of pulleys. The short transmission shaft on the inner side of the support wheel is vertically aligned with the groove at the lower end of the limit component. A metal block is fixedly connected to the back of the rear end of the connecting rod. A magnetic block is fixedly connected to the back of the inner side of the reserved slide groove.

[0007] Preferably, the steering mechanism further includes:

[0008] A rotating disk is rotatably connected to the bottom of the cabinet, and a jack assembly is fixedly connected to the bottom. A load-bearing plate is fixedly connected to the lower end of the jack assembly, and a transmission rod is fixedly connected to the end of the screw of the jack assembly. An internal hexagonal socket is fixedly connected to the end of the transmission rod, and the transmission rod is slidably connected to the front part of the bottom of the cabinet. The internal hexagonal socket is exposed on the bottom of the front side of the cabinet.

[0009] Preferably, the center of the magnetic block and the center of the connecting rod metal block are at the same height.

[0010] Preferably, the bottom of the mounting column is provided with a moisture-proof layer.

[0011] Preferably, the inner side of the groove of the limiting member is provided with a friction layer.

[0012] Preferably, the mounting column is located away from the lower end of the cabinet and is protected by two sets of arc-shaped protective plates.

[0013] This utility model has the following advantages: This utility model provides a fully insulated ring main unit that is easy to extend and connect to the main busbar, and compared with similar equipment, it has the following improvements:

[0014] The present invention describes a fully insulated ring main unit that is easy to extend and connect to the main busbar. By pressing the arc-shaped guard plates at the four corners of the lower end of the cabinet, it is convenient for users to place the ring main unit from multiple angles and adapt to different placement positions. The driving limit component is pressed down and displaced, and the support wheel is rubbed and locked, thereby fixing the ring main unit in place. The turning mechanism provides stable support for the ring main unit and lifts the ring main unit when it needs to be turned, making it convenient for staff to make turning adjustments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lower end structure of the cabinet of this utility model;

[0017] Figure 3 This is a schematic diagram of the positioning mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the retraction structure of the positioning mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the steering mechanism structure of this utility model.

[0020] The components include: gas insulation chamber-100, busbar interface-101, branch outlet-102, control panel-103, cabinet-104, inspection door-105, air pump-106, positioning mechanism-200, mounting column-201, gear rod-202, rack-203, connecting rod-204, arc-shaped guard plate-205, return spring-206, fixing ring-207, reserved slide groove-208, magnetic block-209, sleeve-210, limit component-211, support wheel-212, load-bearing plate-213, steering mechanism-300, rotating disk-301, jack assembly-302, load-bearing plate-303, transmission long rod-304, and internal hexagonal interface-305. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-5 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Example 1:

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a fully insulated ring main unit that is easy to extend and connect to the main busbar, comprising: a gas insulation chamber 100, a busbar interface 101 on the top surface of the gas insulation chamber 100, a branch outlet 102 on the side of the gas insulation chamber 100 for easy extension and connection to the main busbar, a cabinet body 104 fixedly connected to the bottom of the gas insulation chamber 100, an inspection door 105 on the front side of the cabinet body 104 for easy maintenance of the air pump 106, and an air pump 106 fixedly connected to the bottom inside the cabinet body 104.

[0026] The features include: a positioning mechanism 200 and a turning mechanism 300. The positioning mechanism 200 is located at the four corners of the lower end of the cabinet 104, and the turning mechanism 300 is located at the bottom of the cabinet 104. The positioning mechanism 200 further includes: mounting posts 201. Mounting posts 201 are fixedly connected to the four corners of the lower end of the cabinet 104. The mounting posts 201 have interconnected slots on their inner sides, and a gear rod 202 is rotatably mounted inside the slots for convenient synchronous transmission. The front and left sides of the mounting posts 201 have reserved sliding grooves 208 on their upper and lower parts. A rack 203 is slidably connected to the inner side of the four sets of reserved sliding grooves 208. The rear end of rack 203 meshes with the upper right side and back of gear rod 202, and the rear ends of rack 203 are distributed at right angles to the upper part of gear rod 202. A connecting rod 204 is fixedly connected to the front end of rack 203. The rear end of connecting rod 204 passes through and is slidably connected to the central through hole of fixing ring 207. Fixing ring 207 is fixedly connected to the middle of the inner side of reserved slide groove 208. A return spring 206 is sleeved on the front end of connecting rod 204 to facilitate the reset of arc-shaped guard plate 205. The rear end of return spring 206 is fixedly connected to the front side of fixing ring 207, and the front end of connecting rod 204 is fixedly connected to the middle of the inner side of arc-shaped guard plate 205. The lower end of the gear rod 202 is threaded to the inner side of the sleeve 210. The lower end of the sleeve 210 is vertically slidably connected to the bottom of the mounting column 201, facilitating the downward displacement of the driving limit member 211. The limit member 211 is fixedly connected to the bottom of the lower end of the sleeve 210. Two sets of load-bearing plates 213 are fixedly connected to the bottom of the mounting column 201. Support wheels 212 are rotatably connected to the inner side of the lower end of the two sets of load-bearing plates 213. The support wheels 212 are composed of two sets of pulleys with their inner centers fixedly connected to a short transmission shaft. The short transmission shaft on the inner side of the support wheels 212 is vertically aligned with the groove at the lower end of the limit member 211, facilitating friction between the limit member 211 and the support wheels 212. The connecting rod 204 is locked in place. A metal block is fixedly connected to the back of the rear end of the connecting rod 204. A magnetic block 209 is fixedly connected to the back of the reserved slide groove 208 to facilitate the magnetic fixation of the connecting rod 204 and the arc-shaped guard plate 205. The center of the magnetic block 209 is at the same height as the center of the metal block of the connecting rod 204. The bottom of the mounting column 201 is provided with a moisture-proof layer to reduce the corrosion of the reset spring 206 by bottom moisture. The groove of the limiting member 211 is provided with a friction layer to increase the friction force. The mounting column 201 is located away from the lower end of the cabinet 104 and is protected by two sets of arc-shaped guard plates 205, which makes it convenient for users to press the arc-shaped guard plates 205 from multiple angles.

[0027] The working principle of a fully insulated ring main unit based on Embodiment 1, which is easy to expand and connect to the main busbar, is as follows:

[0028] First, when the ring main unit moves to the preset position, the user presses the arc-shaped guard plate 205, which causes the connecting rod 204 to move. This, in turn, works with the fixing ring 207 to squeeze the return spring 206, causing the rack 203 to move and the gear rod 202 to rotate. This drives the sleeve 210 to move, which in turn moves the limiting member 211 to the inside of the support wheel 212, thus rubbing and locking the support wheel 212. This fixes the ring main unit in place. At the same time, the magnetic block 209 attracts the metal block at the rear end of the connecting rod 204, reducing the impact of non-human factors on the buffer spring 206 and allowing the arc-shaped guard plate 205 to return to its original position.

[0029] Example 2:

[0030] Please see Figure 1 , Figure 2 and Figure 5 This utility model provides a fully insulated ring main unit that is easy to extend and connect to the main busbar. Compared with Embodiment 1, this embodiment further includes: the steering mechanism 300 also includes:

[0031] Rotary disc 301 is rotatably connected to the bottom of cabinet 104 to facilitate the rotation of the ring main unit. Jack assembly 302 is fixedly connected to the bottom to facilitate the lifting of the ring main unit. Support plate 303 is fixedly connected to the lower end of jack assembly 302. Transmission rod 304 is fixedly connected to the end of the screw of jack assembly 302. Hex socket 305 is fixedly connected to the end of transmission rod 304. Transmission rod 304 is slidably connected to the front of the bottom of cabinet 104. Hex socket 305 is exposed on the bottom of the front side of cabinet 104 to facilitate the adjustment of jack assembly 302 by staff using tools.

[0032] In this embodiment:

[0033] Workers use tools, along with the hexagonal socket 305 and the transmission rod 304, to adjust the jack assembly 302, thereby adjusting the distance between the rotating plate 301 and the load-bearing plate 303. This connection between the rotating plate 301, the jack assembly 302, and the load-bearing plate 303 provides stable support for the ring main unit. The positioning mechanism 200 positions the four corners of the bottom of the ring main unit, addressing issues such as uneven ground causing the load-bearing plate 303 to not provide complete stability. Furthermore, when the ring main unit is moved, the jack assembly 302 retracts the load-bearing plate 303.

[0034] When a turn is required, the jack assembly 302 is further adjusted to drive the load-bearing plate 303 to contact the ground, thereby lifting the ring main unit and facilitating its rotation on the top surface of the rotating plate 301, thus adjusting the turn of the ring main unit.

[0035] This utility model provides an improved fully insulated ring main unit that is easy to extend and connect to the main busbar. By pressing the arc-shaped guard plates 205 at the four corners of the lower end of the cabinet, users can easily place the ring main unit from multiple angles and adapt to different placement positions. The driving limit member 211 is pushed down and displaced, and the support wheel is rubbed and locked, thereby fixing the ring main unit in place. The turning mechanism 300 provides stable support for the ring main unit and lifts the ring main unit when it needs to be turned, making it convenient for staff to make turning adjustments.

[0036] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully insulated ring main unit that is easy to extend and connect to the main busbar, comprising: A gas insulation chamber (100) is provided with a busbar interface (101) on the top surface of the gas insulation chamber (100), a branch outlet (102) is provided on the side of the gas insulation chamber (100), a cabinet (104) is fixedly connected to the bottom of the gas insulation chamber (100), an inspection door (105) is provided on the front side of the cabinet (104), and an air pump (106) is fixedly connected to the bottom of the inner side of the cabinet (104). Its features include: a positioning mechanism (200) and a turning mechanism (300). The four corners of the lower end of the cabinet (104) are provided with positioning mechanisms (200), and the bottom of the cabinet (104) is provided with a turning mechanism (300). The positioning mechanism (200) further includes: a mounting column (201). The four corners of the lower end of the cabinet (104) are fixedly connected to the mounting column (201). A communicating slot is provided inside the mounting column (201), and a gear rod (202) is rotatably installed inside the slot of the mounting column (201). The mounting post (201) has reserved sliding grooves (208) on its front and left sides. Four sets of these reserved sliding grooves (208) are slidably connected to racks (203). The rear end of the rack (203) meshes with the upper right side and back of the gear rod (202). The rear ends of the racks (203) are distributed at right angles to the upper part of the gear rod (202). A connecting rod (204) is fixedly connected to the front end of the rack (203). The rear end of the connecting rod (204) passes through and is slidably connected to the central through hole of the fixing ring (207). The ring (207) is fixedly connected to the middle of the inner side of the reserved slide groove (208). The front end of the connecting rod (204) is sleeved with a return spring (206), and the rear end of the return spring (206) is fixedly connected to the front side of the fixed ring (207). The front end of the connecting rod (204) is fixedly connected to the middle of the inner side of the arc-shaped guard plate (205). The lower end of the gear rod (202) is threadedly connected to the inner side of the sleeve (210). The lower end of the sleeve (210) is vertically slidably connected to the bottom of the mounting column (201). The bottom of the lower end of the sleeve (210) is fixedly connected to... With the limiter (211) attached, two sets of load-bearing plates (213) are fixedly connected to the bottom of the mounting column (201). Support wheels (212) are rotatably connected to the inner side of the lower end of the two sets of load-bearing plates (213). The support wheels (212) are composed of two sets of pulleys with the inner center fixedly connected to the short shaft of the transmission. The short shaft of the transmission on the inner side of the support wheel (212) is vertically aligned with the groove at the lower end of the limiter (211). A metal block is fixedly connected to the back of the rear end of the connecting rod (204). A magnetic block (209) is fixedly connected to the back of the inner side of the reserved slide groove (208).

2. The fully insulated ring main unit that is easy to extend and connect to the main busbar according to claim 1, characterized in that: The steering mechanism (300) also includes: A rotating disk (301) is rotatably connected to the bottom of the cabinet (104). A jack assembly (302) is fixedly connected to the bottom. A load-bearing plate (303) is fixedly connected to the lower end of the jack assembly (302). A transmission rod (304) is fixedly connected to the end of the screw of the jack assembly (302). An internal hexagonal interface (305) is fixedly connected to the end of the transmission rod (304). The transmission rod (304) is slidably connected to the front part of the bottom of the cabinet (104). The internal hexagonal interface (305) is exposed at the bottom of the front side of the cabinet (104).

3. The fully insulated ring main unit that is easy to extend and connect to the main busbar according to claim 2, characterized in that: The center of the magnetic block (209) is at the same height as the center of the metal block of the connecting rod (204).

4. The fully insulated ring main unit that is easy to extend and connect to the main busbar according to claim 3, characterized in that: The bottom of the mounting column (201) is provided with a moisture-proof layer.

5. The fully insulated ring main unit that is easy to extend and connect to the main busbar according to claim 4, characterized in that: The groove of the limiting member (211) is provided with a friction layer.

6. The fully insulated ring main unit that is easy to extend and connect to the main busbar according to claim 5, characterized in that: The mounting post (201) is located away from the lower end of the cabinet (104) and is protected by two sets of the arc-shaped protective plates (205).

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