Environment-friendly semi-insulating lower isolating switch

Abstract

The utility model discloses an environment-friendly semi-insulating lower isolating switch, and particularly relates to the technical field of isolating switches, the environment-friendly semi-insulating lower isolating switch comprises a mounting rack, a wire inlet plate, a wire inlet contact, a wire outlet plate, a mounting arm, a moving contact and a static contact piece, the wire inlet contact is mounted on the mounting rack through the wire inlet plate, the moving contact is connected with the wire outlet plate through the mounting arm, and the static contact piece is connected with the wire outlet plate through the mounting arm. The mounting arm is rotationally connected with the wire outlet plate, the wire outlet plate is mounted on the mounting rack, and a static contact piece is mounted below the mounting rack corresponding to the rotating track of the moving contact. According to the utility model, the adjusting member is arranged, the air bag is clamped between the moving contacts when the moving contacts are in contact with the L-shaped bottom plate, the moving contacts impact the air bag, and the shaking generated by the movement of the air bag and the mutual collision and force release generated when the moving contacts are clamped on the air bag are utilized, so that the inertia swing generated by the clamping of the moving contacts and the static contact member after the moving contacts are separated from the incoming line contact is reduced; the clamping efficiency of the static contact piece and the moving contact is influenced, and the practicability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of disconnect switches, and more specifically, to an environmentally friendly semi-insulated bottom disconnect switch. Background Art

[0002] An isolating switch is a switching device that is mainly used for "isolating power supply, switching operations, and connecting and disconnecting low-current circuits" and has no arc extinguishing function. When the isolating switch is in the open position, there is an insulation distance that meets the specified requirements and an obvious disconnect mark between the contacts. When it is in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions within a specified time. It is a switching device generally used as a high-voltage isolating switch, that is, an isolating switch with a rated voltage of more than 1kV. Its working principle and structure are relatively simple, but due to its large usage and high requirements for working reliability, it has a great impact on the design, construction and safe operation of substations and power plants.

[0003] Existing disconnectors usually consist of an incoming line board, an incoming line contact, a moving contact, an outgoing line board, a static contact, and other components. The contact is mounted on the incoming line board and is generally fixed. The moving contact is mounted on the outgoing line board, which can rotate. The moving contact contacts the incoming line contact to connect the disconnector, or contacts the static contact to disconnect the disconnector.

[0004] However, in actual use, the moving contact usually contacts the static contact quickly after separating from the incoming contact. When the moving contact contacts the static contact at an extremely fast speed, it collides with the static contact, thereby forming a large inertia, which affects the stability of the contact and connection between the moving contact and the static contact. Utility Model Content

[0005] The utility model provides an environmentally friendly semi-insulated bottom disconnector, which aims to solve the problem that the existing moving contact usually quickly contacts the static contact after being separated from the incoming line contact. When the moving contact contacts the static contact while rotating at an extremely high speed, it collides with the static contact, thereby forming a large inertia, which affects the stability of the contact and connection between the moving contact and the static contact.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an environmentally friendly semi-insulated bottom disconnector, comprising a mounting frame, an incoming line plate, an incoming line contact, an outgoing line plate, a mounting arm, a moving contact, and a static contact member, wherein the incoming line contact is mounted on the mounting frame via the incoming line plate, the moving contact is connected to the outgoing line plate via the mounting arm, the mounting arm is rotatably connected to the outgoing line plate, the outgoing line plate is mounted on the mounting frame, and a static contact member is mounted below the mounting frame corresponding to the rotational trajectory of the moving contact;

[0007] The static contact piece includes an L-shaped base plate and an adjusting piece. The adjusting piece is arranged on the rotation track of the moving contact through the base plate. The adjusting piece is used to clamp the moving contact to reduce the inertia generated when the moving contact contacts the static contact piece, which is beneficial to reducing the inertia generated when the moving contact contacts the static contact piece.

[0008] In a preferred embodiment, the adjusting part includes an airbag, an airbag frame, a piston and a connecting rod. The airbag is symmetrically slidably mounted on the L-shaped base plate through the airbag frame. The airbag frame is connected to the L-shaped base plate. The two airbags are connected by a connecting rod. The piston is slidably mounted at both ends of the connecting rod. The piston is installed in the inner cavity of the airbag, which is beneficial to reducing the inertial swing caused by the moving contact being separated from the incoming contact and then being engaged with the static contact.

[0009] In a preferred embodiment, a first spring is arranged between the airbag frames, and slides are slidably arranged at both ends of the first spring. The slides and the first spring are slidably sleeved on the connecting rod. The first spring and the slide are located between the two airbag frames, and second springs are arranged on both sides of the first spring, which is beneficial to improving the efficiency of reducing the inertia of the moving contact.

[0010] In a preferred embodiment, a guide column is fixedly mounted on the L-shaped bottom plate, and the back of the guide column is slidably connected to one side of the airbag frame, which helps to improve the stability of the airbag frame installed on the L-shaped bottom plate.

[0011] In a preferred embodiment, a rotating shaft is provided between the mounting arm and the outlet plate. The rotating shaft is fixedly connected to the mounting arm and rotatably connected to the outlet plate, which facilitates the rotation of the moving contact and the connection with the incoming contact or the static contact.

[0012] In a preferred embodiment, a mounting sleeve is connected to the bottom of the L-shaped base plate, a mounting beam is provided on the external fixed sleeve of the mounting sleeve, the mounting beam is installed on the mounting frame, a vacuum bubble is installed inside the mounting sleeve, the vacuum bubble passes through the mounting sleeve and is connected to the L-shaped base plate, a cam bracket is installed at the bottom of the vacuum bubble, and an insulating rod is connected to the bottom of the cam bracket.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The utility model provides an adjustment member. When the moving contact contacts the L-shaped bottom plate, the airbag is clamped between the moving contacts. When the moving contact moves at high speed and is sleeved outside the airbag, the moving contact simultaneously impacts the airbag, squeezing the air in the airbag cavity, causing the airbag frame to move and swing the airbag. The swing generated by the movement of the airbag and the collision between the moving contact and the moving contact when the moving contact is clamped on the airbag are used to release force. This reduces the inertial swing caused by the moving contact being separated from the incoming contact and then being clamped with the static contact, which affects the clamping efficiency of the static contact and the moving contact, and effectively improves the practicality of the device.

[0015] 2. The utility model provides a guide column to provide a buffer distance for the moving contact to be stuck on the airbag, and cooperates with the L-shaped bottom plate to form a fixed frame for installing the airbag frame, thereby improving the stability of the airbag frame installed on the L-shaped bottom plate, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the right side view of the present utility model;

[0018] Figure 3 This is a schematic diagram of the left side of the utility model;

[0019] Figure 4 This is a schematic diagram of the vacuum bubble installation structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the airbag installation structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the airbag frame of the utility model;

[0022] Figure 7 This is a schematic diagram of the piston connection of the utility model.

[0023] The accompanying drawings are marked as follows: 1. Mounting frame; 2. Mounting sleeve; 21. Mounting beam; 22. Cam bracket; 23. Static contact member; 231. Guide column; 232. Airbag; 2321. Piston; 233. Airbag frame; 235. Connecting rod; 236. First spring; 237. Slide plate; 238. Second spring; 24. Vacuum bubble; 25. Adjusting member; 3. Moving contact; 31. Mounting arm; 32. Rotating shaft; 33. Outlet plate; 4. Insulating rod; 5. Inlet plate; 51. Inlet contact. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example

[0026] Refer to the instruction manual Figure 1-Figure 7An environmentally friendly semi-insulated bottom disconnector includes a mounting frame 1, an incoming line plate 5, an incoming line contact 51, an outgoing line plate 33, a mounting arm 31, a movable contact 3, and a static contact member 23. The incoming line contact 51 is mounted on the mounting frame 1 via the incoming line plate 5. The movable contact 3 is connected to the outgoing line plate 33 via the mounting arm 31. The mounting arm 31 is rotatably connected to the outgoing line plate 33. The outgoing line plate 33 is mounted on the mounting frame 1. A static contact member 23 is installed below the mounting frame 1 corresponding to the rotation trajectory of the movable contact 3.

[0027] The static contact 23 includes an L-shaped base plate and an adjusting member 25 . The adjusting member 25 is arranged on the rotation track of the moving contact 3 through the base plate. The adjusting member 25 is used to clamp the moving contact 3 to reduce the inertia generated when the moving contact 3 contacts the static contact 23 .

[0028] It should be noted that when the outlet plate 33 drives the moving contact 3 to rotate through the mounting arm 31 so that the moving contact 3 is connected to the incoming contact 51, the incoming plate 5 is connected to the outlet plate 33, thereby power is supplied. When the outlet plate 33 drives the moving contact 3 to rotate through the mounting arm 31 so that the moving contact 3 is in contact with the static contact 23, the outlet plate 33 is disconnected from the incoming contact 51 through the moving contact 3, thereby realizing the power-off function cabinet, and when the adjusting part 25 is used to clamp the moving contact 3 and the static contact 23, the inertia of the static contact 23 when in contact is reduced.

[0029] Furthermore, the adjusting member 25 includes an airbag 232, an airbag frame 233, a piston 2321 and a connecting rod 235. The airbag 232 is symmetrically slidably installed on the L-shaped base plate through the airbag frame 233. The airbag frame 233 is connected to the L-shaped base plate. The two airbags 232 are connected by the connecting rod 235. The piston 2321 is slidably installed at both ends of the connecting rod 235. The piston 2321 is installed in the inner cavity of the airbag 232.

[0030] In the above embodiment, the end of the inner cavity of the airbag 232 facing away from the connecting rod 235 is filled with air, which is used to adapt to the clamping of the moving contact 3. When the moving contact 3 contacts the L-shaped bottom plate, the airbag 232 is clamped between the moving contacts 3, so that when the moving contact 3 is sleeved on the outside of the airbag 232 due to high-speed rotation, the moving contact 3 collides with the airbag 232 and squeezes the air in the inner cavity of the airbag 232, so that the airbag frame 233 drives the airbag 232 to move and produce swinging. The swing generated by the movement of the airbag 232 and the collision between the moving contact 3 when it is clamped on the airbag 232 are used to release force, thereby reducing the inertial swing caused by the moving contact 3 being separated from the incoming contact 51 and clamped with the static contact part 23, affecting the clamping efficiency of the static contact part 23 and the moving contact 3.

[0031] Furthermore, a first spring 236 is arranged between the airbag frames 233, and a slide plate 237 is slidably arranged at both ends of the first spring 236. The slide plate 237 and the first spring 236 are both slidably sleeved on the connecting rod 235. The first spring 236 and the slide plate 237 are located between the two airbag frames 233, and a second spring 238 is arranged on both sides of the first spring 236.

[0032] In the above embodiment, when the airbag 232 is clamped on the outside of the moving contact 3, the airbag 232 will slide and swing outside the piston 2321, and the elasticity of the second spring 238 and the first spring 236 is used to increase the sliding frequency of the airbag 232, thereby improving the effect of slowing down the inertia of the moving contact 3.

[0033] Furthermore, a guide column 231 is fixedly mounted on the L-shaped bottom plate, and the back side of the guide column 231 is slidably connected to one side of the airbag frame 233 .

[0034] In the above embodiment, the guide column 231 provides a buffer distance for the moving contact 3 to be clamped on the airbag 232, and cooperates with the L-shaped base plate to form a fixed frame for installing the airbag frame 233, thereby improving the stability of the airbag frame 233 installed on the L-shaped base plate, thereby improving the practicality of the device.

[0035] Furthermore, a rotating shaft 32 is provided between the mounting arm 31 and the outlet plate 33 . The rotating shaft 32 is fixedly connected to the mounting arm 31 , and the rotating shaft 32 is rotatably connected to the outlet plate 33 .

[0036] In the above embodiment, the rotating shaft 32 is used to drive the mounting arm 31 to rotate, thereby facilitating the movable contact 3 to rotate and connect with the incoming contact 51 or the static contact member 23 .

[0037] Furthermore, a mounting sleeve 2 is connected to the bottom of the L-shaped base plate, a mounting beam 21 is fixedly mounted on the outside of the mounting sleeve 2, the mounting beam 21 is mounted on the mounting frame 1, a vacuum bubble 24 is installed inside the mounting sleeve 2, the vacuum bubble 24 passes through the mounting sleeve 2 and is connected to the L-shaped base plate, a cam bracket 22 is installed at the bottom of the vacuum bubble 24, and an insulating rod 4 is connected to the bottom of the cam bracket 22.

[0038] In this embodiment, the implementation scenario is specifically as follows: when the device is in use, the outlet plate 33 drives the moving contact 3 to rotate through the mounting arm 31 so that the moving contact 3 is connected to the incoming contact 51, thereby realizing that the incoming plate 5 is connected to the outlet plate 33, thereby powering on; when the outlet plate 33 drives the moving contact 3 to rotate through the mounting arm 31 so that the moving contact 3 contacts the static contact member 23, the outlet plate 33 is disconnected from the incoming contact 51 through the moving contact 3, thereby realizing the function of power-off isolation.

[0039] When the moving contact 3 contacts the L-shaped bottom plate, the airbag 232 is stuck between the moving contacts 3. When the moving contact 3 is mounted on the outside of the airbag 232 due to the high-speed movement, the moving contact 3 collides with the airbag 232, squeezing the air in the inner cavity of the airbag 232, causing the airbag frame 233 to drive the airbag 232 to move and produce swinging. The swinging generated by the movement of the airbag 232 and the moving contact 3 collide with each other when being clamped on the airbag 232 to release force, thereby reducing the inertial swing caused by the moving contact 3 being separated from the incoming contact 51 and clamped with the static contact piece 23, affecting the clamping efficiency of the static contact piece 23 and the moving contact 3, and effectively improving the practicality of the device.

[0040] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An environmentally friendly semi-insulated bottom disconnector, characterized by: The invention comprises a mounting frame (1), an incoming line plate (5), an incoming line contact (51), an outgoing line plate (33), a mounting arm (31), a moving contact (3) and a static contact member (23); the incoming line contact (51) is mounted on the mounting frame (1) via the incoming line plate (5); the moving contact (3) is connected to the outgoing line plate (33) via the mounting arm (31); the mounting arm (31) is rotatably connected to the outgoing line plate (33); the outgoing line plate (33) is mounted on the mounting frame (1); and a static contact member (23) is mounted below the mounting frame (1) corresponding to the rotation track of the moving contact (3); The static contact member (23) comprises an L-shaped base plate and an adjusting member (25), wherein the adjusting member (25) is arranged on the rotation track of the moving contact (3) through the base plate, and the adjusting member (25) is used to clamp the moving contact (3) to reduce the inertia generated when the moving contact (3) contacts the static contact member (23); The regulating member (25) comprises an airbag (232), an airbag frame (233), a piston (2321) and a connecting rod (235); the airbag (232) is symmetrically slidably mounted on the L-shaped bottom plate via the airbag frame (233); the airbag frame (233) is connected to the L-shaped bottom plate; the two airbags (232) are connected via the connecting rod (235); the piston (2321) is slidably mounted on both ends of the connecting rod (235); and the piston (2321) is mounted in the inner cavity of the airbag (232).

2. The environmentally friendly semi-insulated bottom disconnector according to claim 1, characterized in that: A first spring (236) is provided between the airbag frames (233), and slide plates (237) are slidably provided at both ends of the first spring (236). The slide plates (237) and the first spring (236) are both slidably sleeved on the connecting rod (235). The first spring (236) and the slide plates (237) are located between the two airbag frames (233), and second springs (238) are provided on both sides of the first spring (236).

3. The environmentally friendly semi-insulated bottom disconnector according to claim 2, characterized in that: A guide column (231) is fixedly mounted on the L-shaped bottom plate, and the back side of the guide column (231) is slidably connected to one side of the airbag frame (233).

4. The environmentally friendly semi-insulated bottom disconnector according to claim 3, characterized in that: A rotating shaft (32) is provided between the installation arm (31) and the outlet plate (33); the rotating shaft (32) is fixedly connected to the installation arm (31); and the rotating shaft (32) is rotatably connected to the outlet plate (33).

5. The environmentally friendly semi-insulated bottom disconnector according to claim 4, characterized in that: The bottom of the L-shaped bottom plate is connected to a mounting sleeve (2); a mounting crossbeam (21) is fixedly sleeved on the outside of the mounting sleeve (2); the mounting crossbeam (21) is mounted on the mounting frame (1); a vacuum bubble (24) is mounted inside the mounting sleeve (2); the vacuum bubble (24) passes through the mounting sleeve (2) and is connected to the L-shaped bottom plate; a cam bracket (22) is mounted on the bottom of the vacuum bubble (24); and an insulating rod (4) is connected to the bottom of the cam bracket (22).

Images