Environment-friendly isolating switch

Abstract

An environment-friendly isolating switch comprises a frame, an upper isolating support, an isolating main shaft, a grounding component, a solid-sealed polar pole and a circuit breaker main shaft are arranged in the frame, an isolating knife is arranged in the isolating main shaft, one end of the isolating knife is connected with the solid-sealed polar pole, and the other end of the isolating knife extends out of the isolating main shaft and is used for being connected with the grounding component and the upper isolating support. The upper isolation support is provided with a static contact, the upper isolation support comprises a fixing part which is obliquely arranged towards the isolation main shaft and a mounting part which is connected to the bottom of the fixing part and is vertically arranged, the static contact comprises a base, and the base is arranged in a state of being in angle fit with the fixing part and the mounting part. The base is provided with a connecting contact used for being electrically connected with the moving contact, the shape of the upper isolation support is improved, and the shape of the upper isolation support is improved from a traditional flat plate shape to a shape with an inclined plane and a vertical plane, so that the stability of the static contact installed on the upper isolation support can be improved.

Description

Technical Field

[0001] The utility model relates to an environmentally friendly isolating switch and belongs to the technical field of electric power engineering. Background Art

[0002] With the accelerated pace of transformation and upgrading of my country's power industry and the urgent need for energy conservation and emission reduction, people's requirements for power quality are constantly increasing, and the quality requirements for power supply and distribution system equipment are also increasing. In view of the rapidly developing power industry, the development of environmentally friendly gas-insulated ring main unit is the general trend. The future power transmission and distribution equipment will continue to develop around the needs of safety, reliability, miniaturization, and environmental protection. Currently, the commonly used environmentally friendly voltage transformer ring main unit uses dry air insulation.

[0003] The isolating switch of the environmental protection cabinet plays the role of isolating the circuit inside the switch cabinet. When opening the switch, the high-voltage side needs to be isolated to ensure the safety of maintenance personnel and equipment. The existing isolating switches fix the static contact at the bottom of the isolation bracket through a mounting plate, and rotate the main shaft to make the moving contact electrically connected to the static contact. Gaskets are usually set at the static contact to buffer the impact of the moving contact, but they will age and harden after long-term use, making the overall vibration amplitude of the product larger, affecting the normal use effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide an environmentally friendly isolating switch.

[0005] An environmentally friendly isolating switch comprises a frame, wherein an upper isolating bracket, an isolating main shaft, a grounding component, a sealed pole and a circuit breaker main shaft are arranged in the frame, an isolating knife is arranged in the isolating main shaft, one end of the isolating knife is connected to the sealed pole, and the other end extends out of the isolating main shaft for connecting to the grounding component and the upper isolating bracket, a static contact is arranged on the upper isolating bracket, the upper isolating bracket comprises a fixing portion inclined toward the isolating main shaft and a mounting portion connected to the bottom of the fixing portion and arranged vertically, the static contact comprises a base, the base is arranged in a state of being in contact with the fixing portion and the mounting portion at an angle, a connecting contact for forming an electrical connection with the moving contact is arranged on the base, and by improving the shape of the upper isolating bracket from a traditional flat plate shape to a shape with an inclined surface and a vertical surface, the stability of the static contact installed on the upper isolating bracket can be improved, and when the isolating knife rotates to dock with the static contact to form an electrical connection, it can replace the traditional gasket to buffer the vibration, and disperse the impact force caused by the vibration to the overall upper isolating bracket, thereby avoiding the problem of aging and hardening of the gasket, and ensuring that the product service life is increased and the use effect is stable.

[0006] Furthermore, a mounting plane is provided on the fixing part, a mounting hole is provided on the mounting plane, and the base is fixed to the mounting plane through a threaded connection between a bolt and the mounting hole. Setting the fixing part in an inclined shape can prevent the impact force set on the set mounting part from directly impacting the connection structure of the mounting hole and the bolt, thereby avoiding the problem of loosening and falling off of the static contact and improving the buffering effect.

[0007] Preferably, a limit strip is provided on the mounting portion at a transverse interval below the mounting plane, and the limit strip can support the mounting portion, cushion vibration, and prevent the isolating knife from rotating too much to damage the static contact and the isolating knife.

[0008] Furthermore, a plurality of reinforcing ribs arranged at vertical intervals are connected between the installation planes, and the reinforcing ribs can improve the overall strength of the upper isolation bracket and further enhance the shock absorbing effect.

[0009] Furthermore, a reinforcing protrusion located at the position of the static contact is provided on the rear side of the upper isolation bracket, and the reinforcing protrusion is provided between the fixing part and the mounting part to improve the connection strength between the fixing part and the mounting part and prevent breakage and the like from occurring.

[0010] Furthermore, the angle between the fixing portion and the mounting portion is an obtuse angle, which can provide maximum buffering for the connection action between the stationary contact and the isolating knife. The overall angle setting of the isolating bracket can also be adjusted according to the product size.

[0011] Preferably, two sides of the fixing portion are fixedly connected to the frame by bolts.

[0012] Preferably, a knife seat is provided on the sealed pole, and the bottom of the isolation knife is rotatably connected to the sealed pole through the knife seat.

[0013] Preferably, the grounding component includes a grounding bracket and a grounding contact arranged on the grounding bracket.

[0014] The beneficial effects of the utility model are as follows: by improving the shape of the upper isolation bracket from a traditional flat plate shape to a shape with an inclined surface and a vertical surface, the stability of the static contact installed on the upper isolation bracket can be improved. When the isolation knife rotates and docks with the static contact to form an electrical connection, it can replace the traditional gasket to buffer the vibration, and disperse the impact force caused by the vibration to the entire upper isolation bracket, avoiding the problem of aging and hardening of the gasket, thereby ensuring that the product service life is increased and the use effect is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of another viewing angle in the utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of the utility model with some structures removed;

[0019] Figure 4 It is a schematic diagram of the rear view angle of the utility model;

[0020] In the figure, 1. frame; 2. upper isolating bracket; 21. static contact; 211. base; 212. connecting contact; 22. fixing part; 221. mounting plane; 222. mounting hole; 23. mounting part; 231. limiting strip; 24. reinforcing rib; 25. reinforcing protrusion; 3. isolating main shaft; 31. isolating knife; 4. grounding component; 41. grounding bracket; 42. grounding contact; 5. sealed pole; 51. knife holder; 6. circuit breaker main shaft. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0022] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0023] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0024] like Figure 1-4As shown, an embodiment of an environmentally friendly isolating switch of the utility model comprises a frame 1, wherein an upper isolating bracket 2, an isolating main shaft 3, a grounding component 4, a sealed pole 5 and a circuit breaker main shaft 6 are arranged in the frame 1, an isolating knife 31 is arranged in the isolating main shaft 3, one end of the isolating knife 31 is connected to the sealed pole 5, and the other end extends out of the isolating main shaft 3 for connecting to the grounding component 4 and the upper isolating bracket 2, a static contact 21 is arranged on the upper isolating bracket 2, the upper isolating bracket 2 comprises a fixing portion 22 arranged obliquely toward the isolating main shaft 3 and a mounting portion 23 connected to the bottom of the fixing portion 22 and arranged vertically, the static contact 21 comprises a base 211, and the The base 211 is arranged in a state of being in contact with the fixing portion 22 and the mounting portion 23 at an angle. The base 211 is provided with a connecting contact 212 for forming an electrical connection with the moving contact. By improving the shape of the upper isolation bracket 2 from a traditional flat plate to a shape with an inclined surface and a vertical surface, the stability of the static contact 21 installed on the upper isolation bracket 2 can be improved. When the isolation knife 31 rotates to dock with the static contact 21 to form an electrical connection, it can replace the traditional gasket to buffer the vibration, and disperse the impact force caused by the vibration to the overall upper isolation bracket 2, thereby avoiding the problem of aging and hardening of the gasket, and ensuring that the product service life is increased and the use effect is stable.

[0025] A mounting plane 221 is provided on the fixing portion 22, and a mounting hole 222 is provided on the fixing portion 22. The base 211 is fixed on the mounting plane 221 through a threaded connection between a bolt and the mounting hole 222. Setting the fixing portion 22 in an inclined shape can prevent the impact force set on the setting mounting portion 23 from directly impacting the connection structure between the mounting hole 222 and the bolt, thereby avoiding the problem of loosening and falling off of the static contact 21 and improving the buffering effect.

[0026] A limit strip 231 is provided on the mounting portion 23 at a transverse interval below the mounting plane 221. The limit strip 231 can support the mounting portion 23, cushion vibration, and prevent the isolating knife 31 from rotating too much to damage the static contact 21 and the isolating knife 31.

[0027] A plurality of vertically spaced reinforcing ribs 24 are connected between the mounting planes 221 . The reinforcing ribs 24 can improve the overall strength of the upper isolation bracket 2 and further enhance the shock absorbing effect.

[0028] A reinforcing lug 25 is provided on the rear side of the upper isolation bracket 2 at the position of the static contact 21 . The reinforcing lug 25 is provided between the fixing portion 22 and the mounting portion 23 to improve the connection strength between the fixing portion 22 and the mounting portion 23 and prevent breakage.

[0029] The angle between the fixing portion 22 and the mounting portion 23 is an obtuse angle, which can maximize the buffering of the connection between the stationary contact 21 and the isolating blade 31. The overall angle setting of the isolating bracket 2 can also be adjusted according to the product size.

[0030] Both sides of the fixing portion 22 are fixedly connected to the frame 1 by bolts. A knife seat 51 is provided on the sealed pole 5, and the bottom of the isolation knife 31 is rotatably connected to the sealed pole 5 through the knife seat 51.

[0031] The grounding component 4 includes a grounding support 41 and a grounding contact 42 disposed on the grounding support 41 .

[0032] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An environmentally friendly isolating switch, characterized in that: It comprises a frame, in which an upper isolating bracket, an isolating main shaft, a grounding component, a sealed pole and a circuit breaker main shaft are arranged, an isolating knife is arranged in the isolating main shaft, one end of the isolating knife is connected to the sealed pole, and the other end extends out of the isolating main shaft for connecting to the grounding component and the upper isolating bracket, a static contact is arranged on the upper isolating bracket, the upper isolating bracket comprises a fixing portion inclined toward the isolating main shaft and a mounting portion vertically arranged connected to the bottom of the fixing portion, the static contact comprises a base, the base is arranged in a state of being in contact with the fixing portion and the mounting portion at an angle, and a connecting contact for forming an electrical connection with a moving contact is arranged on the base.

2. The environmentally friendly isolating switch according to claim 1, characterized in that: The fixing portion is provided with a mounting plane, the mounting plane is provided with a mounting hole, and the base is fixed on the mounting plane through threaded connection between bolts and the mounting hole.

3. The environmentally friendly isolating switch according to claim 2, characterized in that: Limiting strips are arranged on the mounting portion at intervals in a transverse direction below the mounting plane.

4. The environmentally friendly isolating switch according to claim 2, characterized in that: A plurality of reinforcing ribs arranged at vertical intervals are connected between the installation planes.

5. The environmentally friendly isolating switch according to claim 1, characterized in that: A reinforcing bulge located at the position of the static contact is provided on the rear side of the upper isolation bracket, and the reinforcing bulge is provided between the fixing portion and the mounting portion.

6. The environmentally friendly isolating switch according to claim 1 or 5, characterized in that: The angle between the fixing portion and the mounting portion is an obtuse angle.

7. The environmentally friendly isolating switch according to claim 1, characterized in that: The two sides of the fixing part are fixedly connected to the frame by bolts.

8. The environmentally friendly isolating switch according to claim 1, characterized in that: A knife seat is provided on the sealed pole, and the bottom of the isolation knife is rotatably connected to the sealed pole through the knife seat.

9. The environmentally friendly isolating switch according to claim 1, characterized in that: The grounding component comprises a grounding bracket and a grounding contact arranged on the grounding bracket.

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