Hydraulic isolation switch

Abstract

The utility model discloses a hydraulic isolating switch which comprises a supporting plate, and an isolating assembly is arranged on the front side of the supporting plate. The isolation assembly comprises a fixing frame fixedly installed on the front side of the supporting plate, a double-end hydraulic cylinder is fixedly installed at the top of the fixing frame, a supporting frame is fixedly installed on the front side of the supporting plate, first rotating shafts are rotatably installed on the two sides of the supporting frame correspondingly, the outer surfaces of the first rotating shafts are sleeved with connecting plates, and square grooves are formed in one sides of the connecting plates; a cylinder is rotationally installed on one side of the square block and connected with the output end of the double-head hydraulic cylinder. According to the utility model, through the arranged isolation assembly, a worker can remotely control the opening and closing of the contact plate through the double-head hydraulic cylinder and simultaneously self-lock the contact plate, thereby preventing the worker from mistakenly touching the hydraulic isolation switch to cause safety accidents, and improving the stability of the hydraulic isolation switch in use.

Description

Technical Field

[0001] This utility model relates to the field of disconnecting switch technology, specifically to a hydraulic disconnecting switch. Background Technology

[0002] Disconnect switches are an important electrical device in power systems. They are mainly used to provide a clear disconnect point when power equipment or lines need maintenance, ensuring that the circuit is completely de-energized when maintenance work is carried out, thereby ensuring the safety of the workers.

[0003] The existing disconnect switch consists of an isolation frame, a first isolation plate, a second isolation plate, a handle, and a connector. The first isolation plate is rotatably mounted on the top of the isolation frame, the second isolation plate is fixedly mounted on the top of the isolation frame, the handle is rotatably mounted on the top of the isolation frame, and the connector is fixedly mounted between the first isolation plate and the handle.

[0004] Different application scenarios require different operating torques for disconnect switches. When the operating torque of a disconnect switch is large, it is inconvenient for operators to operate it. Furthermore, the disconnect switch cannot limit and fix the handle, which may lead to accidental contact by operators and cause safety accidents. Therefore, there is an urgent need to design a hydraulic disconnect switch to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic disconnect switch to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Includes a support plate, and an isolation component is provided on the front side of the support plate;

[0008] The isolation assembly includes a fixed frame fixedly installed on the front side of the support plate. A double-headed hydraulic cylinder is fixedly installed on the top of the fixed frame. A support frame is fixedly installed on the front side of the support plate. A first rotating shaft is rotatably installed on both sides of the support frame. A connecting plate is sleeved on the outer surface of the first rotating shaft. A square groove is opened on one side of the connecting plate. A square block is slidably installed in the square groove. A cylinder is rotatably installed on one side of the square block. The cylinder is connected to the output end of the double-headed hydraulic cylinder. The double-headed hydraulic cylinder is a self-locking double-headed hydraulic cylinder.

[0009] The isolation component allows operators to remotely control the opening and closing of the contact plate via a dual-head hydraulic cylinder while simultaneously locking it to prevent accidental activation of the hydraulic disconnect switch and thus increasing the stability of the hydraulic disconnect switch during use.

[0010] The support frame has a second rotating shaft rotatably mounted on both sides, and a connecting frame is sleeved on the outer surface of the second rotating shaft. A connecting column is fixedly installed between the connecting plates.

[0011] A third rotating shaft is rotatably mounted on one side of the connecting plate. A movable plate is sleeved on the outer surface of the third rotating shaft. A fourth rotating shaft is rotatably mounted on one side of the movable plate. The fourth rotating shaft is connected to the connecting frame.

[0012] An insulating plate is fixedly installed on one side of the movable plate, a slot is opened on one side of the insulating plate, and a buckle is fixedly installed on one side of the insulating plate.

[0013] A card block is provided in the card slot, a contact plate is fixedly installed on one side of the card block, and a contact head is provided on one side of the contact plate.

[0014] A guide plate is fixedly installed on one side of the insulating plate, and a base is fixedly installed on the bottom of the support plate.

[0015] Insulating bakelite blocks are arranged between the contact plates. Rectangular copper busbars are arranged on both sides of the insulating bakelite blocks. A copper flange is arranged at one end of the rectangular copper busbar. A stainless steel slip-on flange is arranged on one side of the copper flange. A copper connecting circle is arranged on one side of the copper connecting circle. A copper thick-walled pipe is arranged on the outer surface of the copper thick-walled pipe. A wire is arranged on the inner surface of the copper thick-walled pipe. A second connecting water pipe is fixedly connected to both sides of the contact plates. A water channel is opened on one side of the contact plates.

[0016] In the above technical solution, the hydraulic disconnect switch provided by this utility model has the following beneficial effects:

[0017] This invention solves the problem of switching on and off low-voltage, high-current circuits (10,000-50,000 amps). The device uses a hydraulic cylinder for rapid opening and closing, eliminating safety issues caused by arcing during switching. It is compact, flexible, and occupies little space. Multiple switches can be operated simultaneously. The hydraulic system can be remotely controlled to open and close, completing the power switching process. This device can meet the requirements of low-voltage, high-current switching operations in various environments. The hydraulic system ensures stable clamping force. This device ensures uniform clamping force on both sides and reliable clamping position during clamping. Uniform opening and closing, and a fast cutting speed prevent arcing, ensuring a long service life for the device.

[0018] 1. The isolation component allows operators to remotely control the opening and closing of the contact plate via a dual-head hydraulic cylinder while simultaneously locking it to prevent accidental activation of the hydraulic disconnect switch and thus increasing the stability of the hydraulic disconnect switch during use.

[0019] 2. The connecting frame can guide the moving plate, thereby improving the stability of the moving plate during movement.

[0020] 3. The buckle can limit and fix the block, making it easier for staff to replace the contact plate according to the actual situation, thereby improving the flexibility of the hydraulic disconnect switch. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the structure of the hydraulic disconnect switch provided in the embodiment of the present utility model.

[0023] Figure 2 This is a schematic cross-sectional view of the hydraulic disconnect switch provided in an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the isolation component structure provided in an embodiment of the hydraulic disconnect switch of this utility model.

[0025] Figure 4 This is a schematic diagram of the connecting plate structure provided in an embodiment of the hydraulic disconnect switch of this utility model.

[0026] 1. Support plate; 2. Isolation assembly; 3. Connecting column; 4. Fixing frame; 5. Double-headed hydraulic cylinder; 6. Support frame; 7. First rotating shaft; 8. Connecting plate; 9. Square groove; 10. Square block; 11. Cylinder; 12. Second rotating shaft; 13. Connecting frame; 14. Third rotating shaft; 15. Moving plate; 16. Fourth rotating shaft; 17. Insulating plate; 18. Slot; 19. Buckle; 20. Block; 21. Contact plate; 22. Contact head; 23. Guide plate; 24. Base; 25. Insulating bakelite block; 26. Rectangular copper busbar; 27. Copper flange; 28. Stainless steel slip flange; 29. ​​Copper connecting circle; 30. Copper thick-walled pipe; 31. First connecting water pipe; 32. Wire; 33. Second connecting water pipe; 34. Water passage trough. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4 As shown in the embodiment of this utility model, a hydraulic disconnect switch is provided.

[0029] The system includes a support plate 1, with an isolation assembly 2 on its front side. The isolation assembly 2 includes a fixed frame 4 fixedly installed on the front side of the support plate 1, a double-headed hydraulic cylinder 5 fixedly installed on the top of the fixed frame 4, a support frame 6 fixedly installed on the front side of the support plate 1, and first rotating shafts 7 rotatably installed on both sides of the support frame 6. A connecting plate 8 is sleeved on the outer surface of the first rotating shaft 7. A square groove 9 is opened on one side of the connecting plate 8, and a square block 10 is slidably installed in the square groove 9. A cylinder 11 is rotatably installed on one side of the square block 10, and the cylinder 11 is connected to the output end of the double-headed hydraulic cylinder 5. The double-headed hydraulic cylinder 5 is a self-locking double-headed hydraulic cylinder. Hold the contact plate 21 and insert the locking block 20 into the locking slot 18, and use the buckle 19 to limit and fix the locking block 20. Start the double-headed hydraulic cylinder 5 to drive the connecting plate 8 to rotate through the cylinder 11, the square block 10 and the first rotating shaft 7. The connecting plate 8 drives the moving plate 15 to move through the third rotating shaft 14, the second rotating shaft 12, the connecting frame 13 and the third rotating shaft 14. The moving plate 15 drives the contact plate 21 to move through the insulating plate 17, so as to control the closing of the contact plate 21.

[0030] In this embodiment, a support plate 1 is included, and an isolation component 2 is provided on the front side of the support plate 1. The isolation component 2 includes a fixed frame 4 fixedly installed on the front side of the support plate 1, a double-headed hydraulic cylinder 5 fixedly installed on the top of the fixed frame 4, a support frame 6 fixedly installed on the front side of the support plate 1, and first rotating shafts 7 rotatably installed on both sides of the support frame 6. A connecting plate 8 is sleeved on the outer surface of the first rotating shaft 7. A square groove 9 is opened on one side of the connecting plate 8, and a square block 10 is slidably installed in the square groove 9. A cylinder 11 is rotatably installed on one side of the square block 10. The cylinder 11 and the double-headed hydraulic cylinder 5 are connected. The output end is connected. The double-headed hydraulic cylinder 5 is a self-locking double-headed hydraulic cylinder. Hold the contact plate 21 and insert the locking block 20 into the locking slot 18. Use the buckle 19 to limit and fix the locking block 20. Start the double-headed hydraulic cylinder 5 to drive the connecting plate 8 to rotate through the cylinder 11, square block 10 and the first rotating shaft 7. The connecting plate 8 drives the moving plate 15 to move through the third rotating shaft 14, the second rotating shaft 12, the connecting frame 13 and the third rotating shaft 14. The moving plate 15 drives the contact plate 21 to move through the insulating plate 17, so as to control the closing of the contact plate 21. The isolation component 2 allows the operator to remotely control the opening and closing of the contact plate 21 through the double-headed hydraulic cylinder 5 while locking it, thereby preventing the operator from accidentally touching the hydraulic disconnect switch and causing a safety accident. This increases the stability of the hydraulic disconnect switch during use, and makes the hydraulic disconnect switch device compact and flexible, with a small footprint. Multiple hydraulic disconnect switches can be linked simultaneously.

[0031] The double-headed hydraulic cylinder 5 allows operators to remotely control the hydraulic system to open and close the contact plate 21, thereby completing the power on / off operation. The double-headed hydraulic cylinder 5 can meet the requirements of low-voltage, high-current switching operations in different environments. The double-headed hydraulic cylinder 5 ensures stable clamping force. During clamping, the double-headed hydraulic cylinder 5 ensures the uniformity of clamping force between the contact plates 21 and the reliability of the clamping position. The double-headed hydraulic cylinder 5 enables the contact plate 21 to open and close quickly and uniformly, thus avoiding the generation of electric arcs and ensuring a long service life for the hydraulic disconnect switch.

[0032] Reference Figure 2 In this embodiment, the support frame 6 has a second rotating shaft 12 rotatably mounted on both sides, and a connecting frame 13 is sleeved on the outer surface of the second rotating shaft 12. A connecting column 3 is fixedly installed between the connecting plates 8.

[0033] The connecting frame 13 guides the movable plate 15, thereby improving the stability of the movable plate 15 during movement. The connecting column 3 enables the connecting plate 8 to move synchronously.

[0034] Specifically, a third rotating shaft 14 is rotatably mounted on one side of the connecting plate 8, a movable plate 15 is sleeved on the outer surface of the third rotating shaft 14, and a fourth rotating shaft 16 is rotatably mounted on one side of the movable plate 15. The fourth rotating shaft 16 is connected to the connecting frame 13.

[0035] Reference Figure 3 In this embodiment, an insulating plate 17 is fixedly installed on one side of the movable plate 15, a slot 18 is opened on one side of the insulating plate 17, and a buckle 19 is fixedly installed on one side of the insulating plate 17.

[0036] Specifically, the latch 19 can limit and fix the latch 20, making it easier for staff to replace the contact plate 21 according to the actual situation, thereby improving the flexibility of the hydraulic disconnect switch in use.

[0037] Specifically, a card block 20 is provided in the card slot 18, a contact plate 21 is fixedly installed on one side of the card block 20, and a contact head 22 is provided on one side of the contact plate 21.

[0038] Specifically, a guide plate 23 is fixedly installed on one side of the insulating plate 17, and a base 24 is fixedly installed on the bottom of the support plate 1. The guide plate 23 can guide and limit the locking block 20, thereby improving the stability of the latch 20 when it moves.

[0039] Specifically, insulating bakelite blocks 25 are provided between the contact plates 21. Rectangular copper busbars 26 are provided on both sides of the insulating bakelite blocks 25. A copper flange 27 is provided at one end of the rectangular copper busbar 26. A stainless steel slip-on flange 28 is provided on one side of the copper flange 27. A copper connecting circle 29 is provided on one side of the stainless steel slip-on flange 28. A copper thick-walled pipe 30 is provided on one side of the copper connecting circle 29. A first connecting water pipe 31 is provided on the outer surface of the copper thick-walled pipe 30. A wire 32 is provided on the inner surface of the copper thick-walled pipe 30. There are two symmetrically distributed wires 32. The rectangular copper busbars 26 are clamped by the contact plates 21 to conduct current through the two wires 32. A second connecting water pipe 33 is fixedly connected to both sides of the contact plates 21. A water channel 34 is opened on one side of the contact plates 21.

[0040] Contact plate 21 and rectangular copper busbar 26 can solve the problem of switching low voltage and high current of 10,000-50,000 amps.

[0041] The contact plate 21 can be opened and closed quickly by the double-headed hydraulic cylinder 5, thus solving the safety problem caused by arcing of the hydraulic disconnect switch.

[0042] Working principle: First, hold the contact plate 21 and insert the card block 20 into the card slot 18, and use the buckle 19 to limit and fix the card block 20. Start the double-headed hydraulic cylinder 5 to drive the connecting plate 8 to rotate through the cylinder 11, the square block 10 and the first rotating shaft 7. The connecting plate 8 drives the moving plate 15 to move through the third rotating shaft 14, the second rotating shaft 12, the connecting frame 13 and the third rotating shaft 14. The moving plate 15 drives the contact plate 21 to move through the insulating plate 17. The contact plate 21 contacts the rectangular copper busbar 26, so that the current flows from the rectangular copper busbar 26 through the contact plate 21 to another rectangular copper busbar 26.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydraulic disconnect switch, comprising a support plate (1), characterized in that, An isolation component (2) is provided on the front side of the support plate (1); The isolation assembly (2) includes a fixed frame (4) fixedly installed on the front side of the support plate (1). A double-headed hydraulic cylinder (5) is fixedly installed on the top of the fixed frame (4). A support frame (6) is fixedly installed on the front side of the support plate (1). A first rotating shaft (7) is rotatably installed on both sides of the support frame (6). A connecting plate (8) is sleeved on the outer surface of the first rotating shaft (7). A square groove (9) is opened on one side of the connecting plate (8). A square block (10) is slidably installed in the square groove (9). A cylinder (11) is rotatably installed on one side of the square block (10). The cylinder (11) is connected to the output end of the double-headed hydraulic cylinder (5). The double-headed hydraulic cylinder (5) is a self-locking double-headed hydraulic cylinder.

2. The hydraulic disconnect switch according to claim 1, characterized in that, The support frame (6) has a second rotating shaft (12) rotatably mounted on both sides. The outer surface of the second rotating shaft (12) is fitted with a connecting frame (13). A connecting column (3) is fixedly installed between the connecting plates (8).

3. The hydraulic disconnect switch according to claim 2, characterized in that, A third rotating shaft (14) is rotatably mounted on one side of the connecting plate (8). A movable plate (15) is sleeved on the outer surface of the third rotating shaft (14). A fourth rotating shaft (16) is rotatably mounted on one side of the movable plate (15). The fourth rotating shaft (16) is connected to the connecting frame (13).

4. The hydraulic disconnect switch according to claim 3, characterized in that, An insulating plate (17) is fixedly installed on one side of the movable plate (15), a slot (18) is provided on one side of the insulating plate (17), and a buckle (19) is fixedly installed on one side of the insulating plate (17).

5. The hydraulic disconnect switch according to claim 4, characterized in that, A card block (20) is provided in the card slot (18), a contact plate (21) is fixedly installed on one side of the card block (20), and a contact head (22) is provided on one side of the contact plate (21).

6. The hydraulic disconnect switch according to claim 4, characterized in that, A guide plate (23) is fixedly installed on one side of the insulating plate (17), and a base (24) is fixedly installed at the bottom of the support plate (1).

7. The hydraulic disconnect switch according to claim 5, characterized in that, Insulating bakelite blocks (25) are provided between the contact plates (21). Rectangular copper busbars (26) are provided on both sides of the insulating bakelite blocks (25). A copper flange (27) is provided at one end of the rectangular copper busbars (26). A stainless steel slip-on flange (28) is provided on one side of the copper flange (27). A copper connecting circle (29) is provided on one side of the stainless steel slip-on flange (28). A copper thick-walled pipe (30) is provided on one side of the copper connecting circle (29). A first connecting water pipe (31) is provided on the outer surface of the copper thick-walled pipe (30). A wire (32) is provided on the inner surface of the copper thick-walled pipe (30). A second connecting water pipe (33) is fixedly connected to both sides of the contact plates (21). A water channel (34) is opened on one side of the contact plates (21).

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