Environment-friendly isolating switch

Abstract

An environment-friendly isolating switch comprises a frame, an upper isolating support, an isolating main shaft, a vacuum arc-extinguishing chamber and a rotating main shaft are arranged in the frame, the vacuum arc-extinguishing chamber is fixed on the frame through an arc-extinguishing chamber support, a mounting part is arranged at the bottom of the arc-extinguishing chamber support and comprises a mounting groove, a main shaft support is arranged on the rotating main shaft, and the main shaft support is connected with the vacuum arc-extinguishing chamber. The main shaft support comprises installation arms which are arranged on the two sides and extend into the installation groove, fixing parts are arranged on the tops of the installation arms, installation holes are formed in the four corners of the installation groove, and the fixing parts are fixedly connected with the installation holes through bolts. The vibration generated by operating the rotating main shaft can be dispersed to the arc extinguish chamber support and then conducted to the frame, the problems of poor contact and component damage caused by direct vibration of the whole disconnecting switch are solved through secondary dispersion, and the use stability and safety are guaranteed.

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 function 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. For example, the Chinese utility model with publication number CN213988708U discloses an environmentally friendly three-station upper isolating switch integrated circuit breaker, including a circuit breaker main shaft fixing bracket (9) provided at the lower part of the circuit breaker mounting plate (2), and the circuit breaker main shaft fixing bracket (9) is bolted to the circuit breaker mounting plate (2) through the circuit breaker main shaft bracket mounting hole (10) provided thereon. The utility model fixes the main shaft bracket on the circuit breaker mounting plate, but this structure is prone to vibration during the overall movement, and the vibration of the main shaft is transmitted to the overall structure, resulting in the influence of various components, which is not conducive to the stability of product use. 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 vacuum arc extinguishing chamber and a rotating main shaft are arranged in the frame, wherein the vacuum arc extinguishing chamber is fixed to the frame through an arc extinguishing chamber bracket, a mounting portion is arranged at the bottom of the arc extinguishing chamber bracket, the mounting portion comprises a mounting groove, a main shaft bracket is arranged on the rotating main shaft, the main shaft bracket comprises mounting arms arranged on both sides and extending into the mounting groove, a fixing portion is arranged at the top of the mounting arm, mounting holes are arranged at four corners of the mounting groove, the fixing portion is fixedly connected to the mounting holes by bolts, and the main shaft bracket is fixed to the arc extinguishing chamber bracket by improving the fixing position of the main shaft bracket, so that the vibration generated by operating the rotating main shaft can be dispersed to the arc extinguishing chamber bracket and then transmitted to the frame, and after secondary dispersion, the entire isolating switch will not be directly vibrated, resulting in problems such as poor contact and damage to components, thereby ensuring stability and safety in use, and the fixing portion on the mounting arm is fixedly connected to the mounting holes at the four corners of the mounting groove, so that the connection effect is better and vibration buffering is also convenient.

[0006] Furthermore, a vacuum switch pull rod is connected to the bottom of the vacuum interrupter, a spring is connected to the outside of the vacuum switch pull rod, a pulling groove is provided at the bottom of the vacuum switch pull rod, a pulling portion is provided on the main shaft bracket, a sliding transverse groove is provided on the pulling portion, the pulling portion extends into the pulling groove and is connected through the sliding fit of the connecting shaft and the sliding transverse groove. By setting the pulling portion, the vacuum switch pull rod can be driven to move when the main shaft is rotated, thereby controlling the opening and closing of the vacuum interrupter.

[0007] Preferably, both sides of the pulling part are connected to the inner side of the mounting arm, which can enhance the strength of the pulling part and prevent problems such as breakage caused by vibration generated by operating the rotating spindle, thereby ensuring stable and safe use.

[0008] Furthermore, a horizontally arranged fixing hole is provided on the mounting arm, a switch flexible connection is connected to the mounting arm through the fixing hole, and the other side of the switch flexible connection is installed on the end of the vacuum switch pull rod.

[0009] Furthermore, a connection groove for installing a switch soft connection is provided on the installation groove. Providing the connection groove can facilitate the assembly and installation of the switch soft connection, thereby improving the convenience of product production and assembly.

[0010] Furthermore, a first reinforcing rib is provided between the fixing portion and the mounting arm, and a second reinforcing rib is provided outside the mounting arm. The first reinforcing rib and the second reinforcing rib cooperate to strengthen the overall strength of the spindle bracket, and will not cause problems such as breakage due to vibration.

[0011] Preferably, first connecting holes are provided on both sides of the pulling groove, a second connecting hole is provided on the spring, and cams provided on the rotating main shaft are connected to both sides of the connecting shaft through the first connecting hole and the second connecting hole.

[0012] Preferably, a rotation groove is provided on the cam, and the connecting shaft is slidably connected to the rotation groove via a roller.

[0013] The beneficial effects of the utility model are as follows: by improving the fixing position of the main shaft bracket and fixing the main shaft bracket on the arc extinguishing chamber bracket, the vibration generated by operating the rotating main shaft can be dispersed to the arc extinguishing chamber bracket and then transmitted to the frame. After the secondary dispersion, the entire isolating switch will not be directly vibrated to cause problems such as poor contact and damage to components, thereby ensuring the stability and safety of use. The fixing part on the mounting arm is fixedly connected to the mounting holes at the four corners of the mounting groove, which has a better connection effect and is also convenient for vibration buffering. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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.

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the arc extinguishing chamber support in the utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the main shaft support in the utility model;

[0018] Figure 4 This is a schematic diagram of the utility model with some structures removed;

[0019] In the figure, 1. frame; 2. upper isolation bracket; 3. isolation main shaft; 31. vacuum arc chamber; 32. arc chamber bracket; 321. mounting portion; 322. mounting groove; 323. mounting hole; 324. connecting groove; 33. vacuum switch pull rod; 331. pulling groove; 332. first connecting hole; 34. spring; 341. second connecting hole; 342. connecting shaft; 4. rotating main shaft; 41. main shaft bracket; 411. mounting arm; 412. fixing portion; 413. fixing hole; 414. pulling portion; 415. sliding transverse groove; 42. switch soft connection; 43. first reinforcing rib; 44. second reinforcing rib; 45. cam; 451. rotating groove; 452. roller. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] like Figure 1-4 As shown, an embodiment of an environmentally friendly disconnector of the utility model comprises a frame 1, wherein the frame 1 is provided with an upper isolation bracket 2, an isolation spindle 3, a vacuum interrupter 31 and a rotating spindle 4, wherein the vacuum interrupter 31 is fixed to the frame 1 through an interrupter bracket 32, wherein a mounting portion 321 is provided at the bottom of the interrupter bracket 32, wherein the mounting portion 321 comprises a mounting groove 322, wherein a spindle bracket 41 is provided on the rotating spindle 4, wherein the spindle bracket 41 comprises mounting arms 411 arranged on both sides and extending into the mounting groove 322, wherein a fixing portion 412 is provided at the top of the mounting arm 411, wherein the four corners of the mounting groove 322 are provided with mounting arms 411 extending into the mounting groove 322, wherein the ... There is a mounting hole 323, and the fixing part 412 is fixedly connected to the mounting hole 323 by bolts. By improving the fixing position of the main shaft bracket 41, the main shaft bracket 41 is fixed on the arc extinguishing chamber bracket 32, so that the vibration generated by the operation of rotating the main shaft 4 can be dispersed to the arc extinguishing chamber bracket 32, and then transmitted to the frame 1. After secondary dispersion, the entire isolating switch will not be directly vibrated to cause poor contact and damage to components, thereby ensuring stability and safety of use. The fixing part 412 on the mounting arm 411 is fixedly connected to the mounting holes 323 at the four corners of the mounting groove 322, and the connection effect is better, which is also convenient for vibration buffering.

[0024] A vacuum switch pull rod 33 is connected to the bottom of the vacuum interrupter 31, and a spring 34 is externally connected to the vacuum switch pull rod 33. A pulling groove 331 is provided at the bottom of the vacuum switch pull rod 33. A pulling portion 414 is provided on the main shaft support 41, and a sliding transverse groove 415 is provided on the pulling portion 414. The pulling portion 414 extends into the pulling groove 331 and is connected to the sliding transverse groove 415 through a connecting shaft 342. By setting the pulling portion 414, the vacuum switch pull rod 33 can be driven to move when the main shaft 4 is operated to rotate, thereby controlling the opening and closing of the vacuum interrupter 31.

[0025] Both sides of the pulling part 414 are connected to the inner side of the mounting arm 411 , which can strengthen the pulling part 414 and prevent the pulling part 414 from breaking due to vibration caused by operating the rotating spindle, thereby ensuring stable and safe use.

[0026] A horizontally arranged fixing hole 413 is provided on the mounting arm 411 , and a switch flexible connection 42 is connected to the mounting arm 411 through the fixing hole 413 . The other side of the switch flexible connection 42 is mounted on the end of the vacuum switch pull rod 33 .

[0027] The installation groove 322 is provided with a connection groove 324 for installing the switch flexible connection 42. The connection groove 324 can facilitate the assembly and installation of the switch flexible connection 42, thereby improving the convenience of product production and assembly.

[0028] A first reinforcing rib 43 is provided between the fixing portion 412 and the mounting arm 411 , and a second reinforcing rib 44 is provided outside the mounting arm 411 . The first reinforcing rib 43 and the second reinforcing rib 44 cooperate to strengthen the overall strength of the spindle bracket 41 , and will not cause problems such as breakage due to vibration.

[0029] First connecting holes 332 are provided on both sides of the pulling groove 331 , a second connecting hole 341 is provided on the spring 34 , and cams 45 provided on the rotating main shaft 4 are connected to both sides of the connecting shaft 342 through the first connecting holes 332 and the second connecting holes 341 .

[0030] The cam 45 is provided with a rotation groove 451 , and the connecting shaft 342 is slidably connected to the rotation groove 451 via a roller 452 .

[0031] 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 includes a frame, in which an upper isolation bracket, an isolation main shaft, a vacuum arc chamber and a rotating main shaft are arranged, the vacuum arc chamber is fixed to the frame through an arc chamber bracket, a mounting portion is provided at the bottom of the arc chamber bracket, the mounting portion includes a mounting groove, a main shaft bracket is provided on the rotating main shaft, the main shaft bracket includes mounting arms arranged on both sides and extending into the mounting groove, a fixing portion is provided on the top of the mounting arm, mounting holes are provided at the four corners of the mounting groove, and the fixing portion is fixedly connected to the mounting holes by bolts.

2. The environmentally friendly isolating switch according to claim 1, characterized in that: A vacuum switch pull rod is connected to the bottom of the vacuum arc extinguishing chamber, a spring is connected to the outside of the vacuum switch pull rod, a pulling groove is provided at the bottom of the vacuum switch pull rod, a pulling part is provided on the main shaft bracket, a sliding transverse groove is provided on the pulling part, and the pulling part extends into the pulling groove and is connected with the sliding transverse groove through the sliding fit of the connecting shaft.

3. The environmentally friendly isolating switch according to claim 2, characterized in that: Both sides of the pulling portion are connected to the inner side of the mounting arm.

4. The environmentally friendly isolating switch according to claim 1, characterized in that: The mounting arm is provided with a horizontally arranged fixing hole, and a switch flexible connection is connected to the mounting arm through the fixing hole, and the other side of the switch flexible connection is installed on the end of the vacuum switch pull rod.

5. The environmentally friendly isolating switch according to claim 4, characterized in that: The installation groove is provided with a connection groove for soft-connection installation of the switch.

6. The environmentally friendly isolating switch according to claim 1, characterized in that: A first reinforcing rib is provided between the fixing portion and the mounting arm, and a second reinforcing rib is provided outside the mounting arm.

7. The environmentally friendly isolating switch according to claim 2, characterized in that: The pulling groove is provided with first connecting holes on both sides, the spring is provided with a second connecting hole, and the connecting shaft is connected with cams arranged on the rotating main shaft through the first connecting holes and the second connecting holes on both sides.

8. The environmentally friendly isolating switch according to claim 7, characterized in that: The cam is provided with a rotation groove, and the connecting shaft is slidably connected with the rotation groove through a roller.

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