Environment-friendly semi-insulating upper isolating switch

Abstract

The utility model discloses an environment-friendly semi-insulating upper disconnecting switch, and particularly relates to the field of upper disconnecting switches, the environment-friendly semi-insulating upper disconnecting switch comprises a left side plate, a right side plate, a first cross beam, a main shaft, a mounting beam, a second cross beam and an insulating rod, the first cross beam and the second cross beam are fixedly connected with the left side plate and the right side plate, and the first cross beam is located above the second cross beam; the spindle is located between the first beam and the second beam and connected with the left side plate and the right side plate through the limiting sleeves, the mounting beam is fixedly connected with the left side plate and the right side plate and located on one side of the spindle, and the insulating rod is located below the second beam. According to the utility model, the insulating rod is rotated to drive the vacuum bubble to move, so that current can be blocked; and the fixing rods are connected with the fixing holes in different positions of the extension plate, so that the insulating rod can be fixed, and the stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of upper isolating switches, and more particularly to an environmentally friendly semi-insulating upper isolating 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 disconnection mark between the contacts; when in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time.

[0003] Existing disconnectors usually consist of an incoming line board, an incoming line contact, a moving contact, an outgoing line board, a static contact, an insulating rod, and other components. The contact is installed on the incoming line board and is generally fixed. The moving contact is installed 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. The insulating rod is installed under the static contact. Rotating the insulating rod can achieve secondary disconnection of the disconnector, providing protection for the disconnector.

[0004] During actual use, since the insulating rod is in a suspended state, stopping the rotation of the insulating rod will cause the insulating rod to loosen and rotate, thereby affecting the normal disconnection operation of the disconnector. Utility Model Content

[0005] The utility model provides an environmentally friendly semi-insulating upper disconnector, which aims to solve the problem that the existing insulating rod is in a suspended state. When the rotation of the insulating rod stops, the insulating rod will become loose and rotate, thereby affecting the normal disconnection operation of the disconnector.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an environmentally friendly semi-insulating upper isolating switch, comprising a left side plate, a right side plate, a first crossbeam, a main shaft, a mounting beam, a second crossbeam and an insulating rod, the first crossbeam and the second crossbeam are fixedly connected to the left side plate and the right side plate, the first crossbeam is located above the second crossbeam, the main shaft is located between the first crossbeam and the second crossbeam, the main shaft is connected to the left side plate and the right side plate through a limit sleeve, the mounting beam is fixedly connected to the left side plate and the right side plate, the mounting beam is located on one side of the main shaft, and the insulating rod is located below the second crossbeam; a fixing assembly is provided between the insulating rod and the right side plate, the fixing assembly comprises an extension plate, a handle, a sleeve rod, a support rod and a fixing rod, the extension plate is fixedly installed on the bottom of the right side plate, the handle is fixedly installed on the outside of the insulating rod, the sleeve rod is fixedly installed on the handle, the support rod is slidably installed inside the sleeve rod, a first spring is provided between the support rod and the sleeve rod, the fixing rod is movably installed on the support rod, the fixing rod is clamped with the extension plate, and the support rod and the extension plate are detachably connected by the fixing rod.

[0007] In a preferred embodiment, a plurality of connectors are provided through the main shaft, a moving contact is provided inside the connector, one end of the moving contact is located outside the connector, and the other end of the moving contact is located inside the main shaft, and an isolating knife corresponding to the moving contact one by one is provided on the first crossbeam, and the isolating knife is connected to the moving contact.

[0008] In a preferred embodiment, a mounting seat corresponding to the connecting head is provided through the second crossbeam, and a static contact is provided on the mounting seat, and the static contact is connected to the moving contact.

[0009] In a preferred embodiment, a vacuum bubble is provided inside the mounting seat, a soft connecting plate is provided at the bottom of the vacuum bubble, a pull rod is provided on the inside of the soft connecting plate, a second spring is provided on the pull rod, a second spring driving tube is provided at the bottom of the pull rod, rollers are provided on both sides of the second spring driving tube, a pin is provided between the roller and the second spring driving tube, a cam bracket is provided at the bottom of the second spring driving tube, an insulating rod is located inside the cam bracket, cams are provided on both sides of the cam bracket on the insulating rod, and the rollers are slidably connected to the cams.

[0010] In a preferred embodiment, a grounding bar is provided on the inner side of the mounting beam, and lower isolated grounding static contacts corresponding one-to-one to the connectors are provided on one side of the grounding bar.

[0011] In a preferred embodiment, multiple limit frames are provided at the bottom of the insulating rod, and limit rods are symmetrically provided on the inner side of the limit frames. The limit rods are detachably connected to the insulating rods, and connecting holes are provided on the surface of the limit frames. Connecting rods are provided at the bottom of the insulating rod, and the connecting rods are snap-fitted into the connecting holes.

[0012] The beneficial effects of the present invention are:

[0013] The utility model sets a fixing component, rotates the handle to drive the insulating rod and the sleeve rod to rotate, the sleeve rod drives the support rod to move, and then pushes or pulls the support rod to change the position of the support rod inside the sleeve rod, so that the first spring is expanded and contracted, and the fixing rod is connected to the fixing hole on the extension plate, which can limit the position of the insulating rod and prevent the insulating rod from rotating.

[0014] The utility model sets a limit frame, places the limit frame at the bottom of the insulating rod, passes the limit rod through the insulating rod, and the limit rod is located on one side of the cam, which can fix the position between the insulating rod and the cam and prevent the insulating rod from being displaced inside the cam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a side view structural diagram of the utility model.

[0017] Figure 3This is a schematic structural diagram of the left and right sides of the utility model.

[0018] Figure 4 This is a schematic diagram of the extension plate and insulating rod structure of the utility model.

[0019] Figure 5 This is a schematic diagram of the support rod and sleeve rod structure of the utility model.

[0020] Figure 6 This is a schematic diagram of the insulating rod and limit frame structure of the utility model.

[0021] The figures are marked as follows: 1. left side plate; 2. right side plate; 3. first crossbeam; 4. main shaft; 5. mounting beam; 6. second crossbeam; 7. insulating rod; 8. fixing assembly; 801. extension plate; 802. handle; 803. sleeve rod; 804. support rod; 805. fixing rod; 806. first spring; 9. connecting head; 10. moving contact; 11. isolating knife; 12. mounting seat; 13. static contact; 14. vacuum bubble; 15. flexible connecting plate; 16. second spring; 17. roller; 18. pin; 19. cam bracket; 20. cam; 21. limit frame; 22. limit rod; 23. connecting rod. DETAILED DESCRIPTION

[0022] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual Figure 1 - Figure 6, an environmentally friendly semi-insulated upper disconnector, comprising a left side plate 1, a right side plate 2, a first crossbeam 3, a main shaft 4, a mounting beam 5, a second crossbeam 6 and an insulating rod 7, the first crossbeam 3 and the second crossbeam 6 are both fixedly connected to the left side plate 1 and the right side plate 2, the first crossbeam 3 is located above the second crossbeam 6, the main shaft 4 is located between the first crossbeam 3 and the second crossbeam 6, the main shaft 4 is connected to the left side plate 1 and the right side plate 2 through a limit sleeve, the mounting beam 5 is fixedly connected to the left side plate 1 and the right side plate 2, the mounting beam 5 is located on one side of the main shaft 4, and the insulating rod 7 is located below the second crossbeam 6; a fixed group is provided between the insulating rod 7 and the right side plate 2 Part 8, the fixing assembly 8 includes an extension plate 801, a handle 802, a sleeve rod 803, a support rod 804 and a fixed rod 805. The extension plate 801 is fixedly installed at the bottom of the right side plate 2, the handle 802 is fixedly installed on the outside of the insulating rod 7, the sleeve rod 803 is fixedly installed on the handle 802, the support rod 804 is slidably installed inside the sleeve rod 803, a first spring 806 is provided between the support rod 804 and the sleeve rod 803, the fixed rod 805 is movably installed on the support rod 804, the fixed rod 805 is clamped with the extension plate 801, and the support rod 804 and the extension plate 801 are detachably connected through the fixed rod 805.

[0024] It should be noted that, according to the rotational position of the insulating rod 7 , the fixing rod 805 is connected to the fixing holes at different positions on the extension plate 801 , so as to limit the position of the insulating rod 7 and improve stability.

[0025] Furthermore, a plurality of connectors 9 are provided through the main shaft 4, a moving contact 10 is provided inside the connector 9, one end of the moving contact 10 is located outside the connector 9, and the other end of the moving contact 10 is located inside the main shaft 4, and an isolation knife 11 corresponding one-to-one to the moving contact 10 is provided on the first crossbeam 3, and the isolation knife 11 is connected to the moving contact 10.

[0026] Furthermore, a mounting seat 12 corresponding to the connecting head 9 is provided through the second crossbeam 6 , and a static contact 13 is provided on the mounting seat 12 , and the static contact 13 is connected to the moving contact 10 .

[0027] Furthermore, a vacuum bubble 14 is provided inside the mounting seat 12, a soft connecting plate 15 is provided at the bottom of the vacuum bubble 14, a pull rod is provided on the inside of the soft connecting plate 15, a second spring 16 is sleeved on the pull rod, a second spring 16 driving tube is provided at the bottom of the pull rod, rollers 17 are provided on both sides of the second spring 16 driving tube, a pin 18 is provided between the roller 17 and the second spring 16 driving tube, a cam bracket 19 is provided at the bottom of the second spring 16 driving tube, the insulating rod 7 is located inside the cam bracket 19, and cams 20 are provided on both sides of the cam bracket 19 on the insulating rod 7, and the roller 17 is slidably connected to the cam 20.

[0028] Furthermore, a grounding bar is provided on the inner side of the mounting beam 5 , and lower isolated grounding static contacts 13 corresponding one-to-one to the connectors 9 are provided on one side of the grounding bar.

[0029] Further, refer to the instructions attached Figure 6 A plurality of limit frames 21 are provided at the bottom of the insulating rod 7, and a limit rod 22 is symmetrically provided on the inner side of the limit frame 21. The limit rod 22 is detachably connected to the insulating rod 7. A connecting hole is provided on the surface of the limit frame 21, and a connecting rod 23 is provided at the bottom of the insulating rod 7, which is snap-fitted to the connecting hole.

[0030] It should be noted that, since the limiting rod 22 is inserted into the insulating rod 7 and is located on one side of the cam 20 , the position of the insulating rod 7 on the cam 20 can be limited.

[0031] Working principle: First, the rotating main shaft 4 drives the static contact 13 to separate from the isolation knife 11 on the first beam 3, thereby realizing the power-off operation of the isolation switch. Conversely, the power-on operation can be realized.

[0032] Next, turn the handle 802 to rotate the insulating rod 7 to drive the cam 20 and the cam bracket 19 to rotate, so that the roller 17 drives the second spring 16 to drive the rod and the pull rod and the spring along the cam 20, changing the position of the vacuum bubble 14 inside the mounting seat 12, thereby blocking the current.

[0033] When rotating the insulating rod 7, the handle 802 drives the sleeve rod 803 and the support rod 804 to rotate. After the insulating rod 7 is moved to the required angle, the support rod 804 is moved inside the sleeve rod 803 to make the first spring 806 expand and contract. The fixing rod 805 on the support rod 804 is connected to the fixing hole on the surface of the extension plate 801. The position of the insulating rod 7 can be fixed to prevent the insulating rod 7 from rotating.

[0034] By limiting the inner limiting rod 22 , since the limiting rod 22 is located on one side of the cam 20 , the cam 20 and the insulating rod 7 can be limited to prevent the insulating rod 7 from moving inside the cam 20 .

[0035] The present invention can limit the position of the insulating rod 7 by connecting the fixing rod 805 with the fixing holes at different positions on the extension plate 801; and the insulating rod 7 and the cam 20 are limited by the limiting frame 21, thereby improving the stability of the insulating rod 7.

[0036] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly semi-insulated upper disconnect switch, characterized by: The invention comprises a left side plate (1), a right side plate (2), a first crossbeam (3), a main shaft (4), a mounting beam (5), a second crossbeam (6) and an insulating rod (7), wherein the first crossbeam (3) and the second crossbeam (6) are both fixedly connected to the left side plate (1) and the right side plate (2), the first crossbeam (3) is located above the second crossbeam (6), the main shaft (4) is located between the first crossbeam (3) and the second crossbeam (6), the main shaft (4) is connected to the left side plate (1) and the right side plate (2) through a limiting sleeve, the mounting beam (5) is fixedly connected to the left side plate (1) and the right side plate (2), the mounting beam (5) is located on one side of the main shaft (4), and the insulating rod (7) is located below the second crossbeam (6); A fixing assembly (8) is provided between the insulating rod (7) and the right side plate (2), and the fixing assembly (8) comprises an extension plate (801), a handle (802), a sleeve rod (803), a support rod (804) and a fixing rod (805). The extension plate (801) is fixedly mounted on the bottom of the right side plate (2), the handle (802) is fixedly mounted on the outside of the insulating rod (7), the sleeve rod (803) is fixedly mounted on the handle (802), the support rod (804) is slidably mounted inside the sleeve rod (803), a first spring (806) is provided between the support rod (804) and the sleeve rod (803), the fixing rod (805) is movably mounted on the support rod (804), the fixing rod (805) is clamped with the extension plate (801), and the support rod (804) and the extension plate (801) are detachably connected via the fixing rod (805).

2. The environmentally friendly semi-insulated upper disconnector according to claim 1, characterized in that: A plurality of connectors (9) are provided through the main shaft (4), a moving contact (10) is provided inside the connector (9), one end of the moving contact (10) is located outside the connector (9), and the other end of the moving contact (10) is located inside the main shaft (4), and an isolation knife (11) corresponding to the moving contact (10) is provided on the first crossbeam (3), and the isolation knife (11) is connected to the moving contact (10).

3. The environmentally friendly semi-insulated upper disconnector according to claim 2, characterized in that: A mounting seat (12) corresponding to the connecting head (9) is provided through the second crossbeam (6), and a static contact (13) is provided on the mounting seat (12), and the static contact (13) is connected to the moving contact (10).

4. The environmentally friendly semi-insulated upper disconnector according to claim 3, characterized in that: A vacuum bubble (14) is provided inside the mounting seat (12), a soft connecting plate (15) is provided at the bottom of the vacuum bubble (14), a pull rod is provided inside the soft connecting plate (15), a second spring (16) is sleeved on the pull rod, a second spring (16) driving tube is provided at the bottom of the pull rod, rollers (17) are provided on both sides of the second spring (16) driving tube, a pin (18) is provided between the roller (17) and the second spring (16) driving tube, a cam bracket (19) is provided at the bottom of the second spring (16) driving tube, the insulating rod (7) is located inside the cam bracket (19), cams (20) are provided on both sides of the cam bracket (19) located on the insulating rod (7), and the roller (17) is slidably connected to the cam (20).

5. The environmentally friendly semi-insulated upper disconnector according to claim 4, characterized in that: A grounding bar is provided on the inner side of the mounting beam (5), and a lower isolated grounding static contact (13) corresponding one-to-one to the connector (9) is provided on one side of the grounding bar.

6. The environmentally friendly semi-insulated upper disconnector according to claim 1, characterized in that: A plurality of limiting frames (21) are provided at the bottom of the insulating rod (7), limiting rods (22) are symmetrically provided on the inner side of the limiting frames (21), and the limiting rods (22) are detachably connected to the insulating rod (7). A connecting hole is provided on the surface of the limiting frame (21), and a connecting rod (23) is provided at the bottom of the insulating rod (7), and the connecting rod (23) is snap-connected with the connecting hole.

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