Impact-resistant ring main unit

By installing side rails and curved plates on both sides of the ring main unit, and utilizing elastic compression and abutment components to absorb impact, the problem of easy damage to the ring main unit is solved, and the impact resistance and equipment protection are enhanced.

CN224068146UActive Publication Date: 2026-03-31ZHEJIANG XINJI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing ring main units are easily impacted by vehicles and other factors, causing deformation of the cabinet side walls and damage to internal electrical equipment. They also lack impact-resistant structures.

Method used

Side rails are installed on both sides of the cabinet, and curved plates and side ears are installed. The impact force is absorbed by elastic compression and abutment components, and the impact damage is reduced by elastic compression and abutment components.

Benefits of technology

It improves the ring main unit's impact resistance, protects internal electrical equipment, reduces impact damage to the cabinet, and enhances its protective performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ring main units, in particular to an impact-resistant ring main unit, which comprises a cabinet body, two groups of side rails are symmetrically and fixedly connected to two sides of the cabinet body, an arc-shaped plate is connected between the two groups of side rails in a sliding manner, side lugs are fixedly connected to two sides of the arc-shaped plate, and the two groups of side lugs are respectively connected in the two groups of side rails in a sliding manner. Elastic extrusion assemblies are fixedly connected to the inner side walls of the two sets of side rails, the two sets of side lugs are in extrusion fit with the two sets of elastic extrusion assemblies respectively, two sets of elastic abutting assemblies are symmetrically and fixedly connected to the two sides of the cabinet body, and the side lugs are in abutting fit with the elastic abutting assemblies. When the side wall of the cabinet body is impacted, the arc-shaped plate deforms, the two groups of side lugs outwards extrude the elastic extrusion assembly and the elastic abutting assembly, and the elastic extrusion assembly and the elastic abutting assembly reversely extrude the side lugs on the two sides of the arc-shaped plate, so that the damage of impact to the arc-shaped plate and the cabinet body is reduced, and the ring main unit has certain anti-impact protection capability; and the capability of protecting electrical equipment in the ring main unit is better.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ring main unit, concretely is an anti-impact ring main unit. BACKGROUND

[0002] The ring main unit is a group of power transmission and distribution electrical equipment (high-voltage switch equipment) installed in a metal or non-metal insulated cabinet or made into a power supply unit of a split type ring network, and can be divided into a low-voltage ring main unit, a medium-voltage ring main unit and a high-voltage ring main unit.

[0003] The existing ring main unit, such as the one disclosed in patent application No. CN202020093821.5, has a first side wall, a second side wall, a front inclined roof, a rear inclined roof, a first flow guide plate and a second flow guide plate, and the first flow guide plate and the second flow guide plate are internally provided with cavities, which can utilize the rainwater on rainy days to cool the components in the ring main unit body, thereby improving the cooling efficiency of the ring main unit body without consuming energy and achieving energy saving and environmental protection.

[0004] However, the existing technology has defects. As an outdoor ring main unit, the cabinet body is easily impacted by vehicles and other factors. The existing technology lacks an anti-impact structure on the cabinet body side wall. When the cabinet body side wall is impacted, the cabinet body is easily deformed, and the internal electrical equipment is easily damaged. Therefore, an anti-impact ring main unit is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an anti-impact ring main unit to solve the problems in the background technology.

[0006] The utility model can achieve the purpose through the following technical solutions:

[0007] An anti-impact ring main unit comprises a cabinet body, two groups of side rails are symmetrically fixed to the two sides of the cabinet body, an arc-shaped plate is slidably connected between the two groups of side rails, side ears are fixed to the two sides of the arc-shaped plate, the two groups of side ears are slidably connected in the two groups of side rails, elastic extrusion assemblies are fixed to the inner side walls of the two groups of side rails, the two groups of side ears are extrusion-fitted with the two groups of elastic extrusion assemblies, two groups of elastic abutting assemblies are symmetrically fixed to the two sides of the cabinet body, and the side ears are abutting-fitted with the elastic abutting assemblies.

[0008] Preferably, the side rails are shaped as "L", a bottom plate for preventing the arc-shaped plate from falling is fixed to the lower end of the side rail, and a plurality of through holes are formed in the side wall of the arc-shaped plate.

[0009] Preferably, the elastic extrusion assembly comprises a spring, a plurality of springs are provided, the plurality of springs are fixed to the inner side walls of the side rails, a pressing plate is fixed to the end portions of the plurality of springs, the pressing plate is slidably connected to the side rail, and the end portion of the side ear is extrusion-fitted with the pressing plate.

[0010] Preferably, the elastic abutment component includes an elastic plate, which is arc-shaped. One end of the elastic plate is fixed to the side wall of the cabinet, and the other end is pressed against one side of the side ear. An abutment plate is fixed to one side of the elastic plate, and the end of the abutment plate abuts against the side wall of the cabinet. The elastic plate and the abutment plate form an "in" shape.

[0011] Preferably, multiple sets of air inlets are opened through both sides of the cabinet, and air inlet pipes are fixedly connected to each set of air inlets. The air inlet pipes are shaped like a frustum, and the end with the smaller diameter of the air inlet pipe is fixedly connected to the side wall of the cabinet.

[0012] Preferably, a cabinet door is rotatably connected to one side of the cabinet body, a transparent observation port is fixed to the upper end of the side wall of the cabinet door, and a heat dissipation vent is opened at the lower end of the side wall of the cabinet door.

[0013] The beneficial effects of this utility model are:

[0014] This utility model features side rails on both sides of the cabinet, with an arc-shaped plate installed within the two sets of side rails. When the cabinet sidewall is impacted, the arc-shaped plate is first squeezed, causing it to deform. The two sets of side ears expand outward, squeezing the elastic squeezing components, and one side of each set of side ears squeezes the elastic abutment components. The elastic squeezing components and elastic abutment components squeeze the side ears on both sides of the arc-shaped plate in opposite directions, reducing the impact damage to the arc-shaped plate and the cabinet. The ring main unit has a certain impact resistance and better protection for the internal electrical equipment. Attached Figure Description

[0015] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the cabinet structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the top structure of the cabinet of this utility model;

[0019] Figure 4 This is a schematic diagram of the arc-shaped plate installation structure of this utility model;

[0020] The attached figures are labeled as follows:

[0021] 1. Cabinet body; 2. Cabinet door; 4. Side rail; 5. Curved plate; 6. Through hole; 7. Side lug; 8. Pressure plate; 9. Spring; 10. Elastic plate; 11. Abutment plate; 12. Base plate; 13. Air inlet; 14. Air inlet duct; 18. Heat dissipation vent; 20. Transparent observation port. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] An impact-resistant ring main unit, such as Figures 1-4 As shown, the cabinet includes a cabinet body 1, with a cabinet top at the top. The cabinet top is inclined to collect rainwater and dissipate heat from the cabinet body 1. Two sets of side rails 4 are symmetrically fixed to both sides of the cabinet body 1. A total of four sets of side rails 4 are provided on the side walls of the cabinet body 1, with two sets on each side. An arc-shaped plate 5 is slidably connected between the two sets of side rails 4. Side ears 7 are fixed to both sides of the arc-shaped plate 5. The two sets of side ears 7 are slidably connected to the two sets of side rails 4. Elastic compression components are fixed to the inner side walls of the two sets of side rails 4. The two sets of side ears 7 are respectively compressed and engaged with the two sets of elastic compression components. Two sets of elastic abutment components are symmetrically fixed to both sides of the cabinet body 1. The side ears 7 are abutted and engaged with the elastic abutment components.

[0024] By installing side rails 4 on both sides of the cabinet 1, and installing the arc-shaped plate 5 inside the two sets of side rails 4, when the side wall of the cabinet 1 is impacted, the arc-shaped plate 5 will be squeezed first, the arc-shaped plate 5 will deform, and the two sets of side ears 7 will expand outward to squeeze the elastic squeezing components. The two sets of side ears 7 will also squeeze the elastic abutment components on one side. The elastic squeezing components and the elastic abutment components will squeeze the side ears 7 on both sides of the arc-shaped plate 5 in opposite directions, reducing the impact damage to the arc-shaped plate 5 and the cabinet 1. The ring main unit has a certain impact protection capability and better protection capability for the internal electrical equipment of the ring main unit.

[0025] like Figures 3-4 As shown, the side rail 4 is L-shaped, and a base plate 12 is fixed to the lower end of the side rail 4 to prevent the arc plate 5 from falling. Multiple sets of through holes 6 are opened through the side wall of the arc plate 5.

[0026] The “L”-shaped side rail 4 prevents the side ear 7 from falling off and facilitates the sliding of the side rail 4. The bottom plate 12 prevents the side ear 7 from sliding off the bottom of the side rail 4. The through hole 6 on the side wall of the arc plate 5 facilitates ventilation and heat dissipation of the side wall of the cabinet 1.

[0027] like Figures 1-4As shown, the elastic extrusion assembly includes a plurality of springs 9, the plurality of springs 9 are fixedly connected to the inner side wall of the side rail 4, the end portions of the plurality of springs 9 are fixedly connected with a pressing plate 8, the pressing plate 8 is slidingly connected in the side rail 4, and the end portion of the side lug 7 is extrudedly matched with the pressing plate 8.

[0028] When the arc-shaped plate 5 is impacted, the two end side lugs 7 extrude the pressing plate 8, the springs 9 are more compressed, the continuous extrusion of the side lug 7 is prevented, and the impact is resisted when the arc-shaped plate 5 is impacted.

[0029] As shown in the drawings, Figures 1-4 The elastic abutting assembly includes an elastic plate 10, the elastic plate 10 is arranged in an arc shape, one end of the elastic plate 10 is fixedly connected to the side wall of the cabinet body 1, the other end is extrudedly matched with one side of the side lug 7, one side of the elastic plate 10 is fixedly connected with an abutting plate 11, the end portion of the abutting plate 11 is abutted with the side wall of the cabinet body 1, and the elastic plate 10 and the abutting plate 11 form a "R" shape.

[0030] When the arc-shaped plate 5 is not impacted, the elastic plate 10 is in an extruded state and is slightly bent, when the arc-shaped plate 5 is impacted, the side lug 7 extrudes the elastic plate 10, the bending degree of the elastic plate 10 becomes more serious, the abutting plate 11 is extruded at the same time, the abutting plate 11 prevents the elastic plate 10 from deforming, and therefore the elastic plate 10 and the abutting plate 11 resist the extrusion of the side lug 7 at the same time, and the impact is resisted when the arc-shaped plate 5 is impacted.

[0031] As shown in the drawings, Figures 1-3 A plurality of air inlets 13 are formed in the cabinet body 1, the air inlets 13 are fixedly connected with air inlet pipes 14, the air inlet pipes 14 are arranged in a circular truncated cone shape, and the air inlet pipes 14 are fixedly connected with the side wall of the cabinet body 1 at the small-diameter end.

[0032] The air outside the cabinet body 1 passes through the through hole 6, the large-diameter end of the air inlet pipe 14, the small-diameter end of the air inlet pipe 14 and the air inlet 13 in sequence, and the air inside the cabinet body 1 is cooled; the circular truncated cone-shaped air inlet pipe 14 increases the area of air entering the cabinet body 1, and the air inside the cabinet body 1 is cooled more conveniently.

[0033] As shown in the drawings, Figure 1 The cabinet door 2 is rotatably connected to one side of the cabinet body 1, a transparent observation port 20 is fixedly connected to the upper end of the side wall of the cabinet door 2, and a heat dissipation port 18 is formed in the lower end of the side wall of the cabinet door 2.

[0034] The transparent observation port 20 facilitates observation of the state of the inside of the cabinet body 1, the air outside the cabinet body 1 enters the cabinet body 1 through the air inlet pipe 14 and flows outwards from the heat dissipation port 18, and the air inside and outside the cabinet body 1 flows.

[0035] The working principle of the ring main unit provided by the utility model is as follows:

[0036] By setting the side rail 4 on both sides of the cabinet body 1, the arc-shaped plate 5 is installed in the two groups of side rails 4, when the side wall of the cabinet body 1 is impacted, the arc-shaped plate 5 is first extruded, the arc-shaped plate 5 is deformed, the two groups of side ears 7 are extruded to expand the pressing plate 8 and the spring 9, and one side of the two groups of side ears 7 extrudes the elastic plate 10 and the abutting plate 11, the pressing plate 8 and the elastic plate 10 reversely extrude the side ears 7 on both sides of the arc-shaped plate 5, the damage of the impact to the arc-shaped plate 5 and the cabinet body 1 is reduced, and the ring main unit has a certain anti-impact protection capability, and the protection capability of the ring main unit to the electrical equipment in the ring main unit is better.

[0037] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An impact-resistant ring main unit comprising a cabinet (1), characterized in that, Both sides of the cabinet body (1) are symmetrically fixed with two groups of side rails (4), and the arc-shaped plates (5) are slidably connected between the two groups of side rails (4), both sides of the arc-shaped plates (5) are fixed with side ears (7), the two groups of side ears (7) are respectively slidably connected in the two groups of side rails (4), the inner walls of the two groups of side rails (4) are fixed with elastic extrusion assemblies, the two groups of side ears (7) are respectively extruded with the two groups of elastic extrusion assemblies, both sides of the cabinet body (1) are symmetrically fixed with two groups of elastic abutting assemblies, and the side ears (7) are in abutting cooperation with the elastic abutting assemblies.

2. The shock-resistant ring main unit according to claim 1, characterized in that, The side rail (4) is provided in an "L" shape, the bottom plate (12) for preventing the arc-shaped plate (5) from falling is fixed at the lower end of the side rail (4), and a plurality of through holes (6) are formed in the side wall of the arc-shaped plate (5).

3. The shock-resistant ring main unit according to claim 2, characterized in that, The elastic extrusion assembly comprises a plurality of springs (9), the plurality of springs (9) are fixed on the inner walls of the side rails (4), the ends of the plurality of springs (9) are fixed with a pressing plate (8), the pressing plate (8) is slidably connected in the side rail (4), and the end of the side ear (7) is extruded with the pressing plate (8).

4. The shock-resistant ring main unit according to claim 2, characterized in that, The elastic abutting assembly comprises an elastic plate (10), the elastic plate (10) is provided in an arc shape, one end of the elastic plate (10) is fixed on the side wall of the cabinet body (1), the other end is extruded with one side of the side ear (7), one side of the elastic plate (10) is fixed with an abutting plate (11), the end of the abutting plate (11) is abutted with the side wall of the cabinet body (1), and the elastic plate (10) and the abutting plate (11) form a "n" shape.

5. The shock-resistant ring main unit according to claim 1, characterized in that, A plurality of air inlets (13) are formed in the cabinet body (1), the air inlets (13) are fixed with air inlet pipes (14), the air inlet pipes (14) are provided in a circular truncated cone shape, and the small end of the air inlet pipe (14) is fixed with the side wall of the cabinet body (1).

6. The shock-resistant ring main unit according to claim 1, characterized in that, The cabinet door (2) is rotatably connected to one side of the cabinet body (1), the transparent observation port (20) is fixed on the upper end of the side wall of the cabinet door (2), and the heat dissipation port (18) is formed in the lower end of the side wall of the cabinet door (2).

Citation Information

Patent Citations

  • Medium-voltage outdoor power distribution network ring main unit

    CN211829816U