Generator-transformer unit isolation switch safety protection device
By designing the combination of insulator rods, support frames and reinforcement devices, the problem of shaking and breaking of the isolation knife switch of the radial group in strong winds is solved, and stable support and insulation protection are achieved.
Patent Information
- Application Number
- CN202423028960.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In severe windy weather, the knife switch link of the transformer outlet isolation knife switch is easily blown and shaken and may break, and the existing technology lacks effective protective measures.
A safety protection device including an insulator rod, a knife switch seat, a support frame and a reinforcement device is designed. The knife switch link is clamped and supported by components such as support groove frame, lock clamp and support plate. In combination with rubber pads, it provides insulation protection, and adjusts the bolts and clamps to adjust the height to adapt to different closing positions.
Effectively prevent the knife switch connecting rod from shaking and breaking in strong winds, adapt to height changes after closing, and provide stable support and insulation protection.
Smart Images
Figure CN223296716U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a safety protection device for an isolation knife switch of a generator-transformer group. Background Art
[0002] When the generator-transformer group outlet isolation knife switch is closing, the knife switch connecting rod needs to be rotated open and connected to the static contact side. Since the knife switch connecting rod is a long cylindrical rod, when encountering strong winds and severe weather, the knife switch connecting rod will be blown by the strong wind and shake, and in severe cases, the root position will break. Therefore, a protective device is needed to effectively protect the knife switch connecting rod to prevent it from breaking. Utility Model Content
[0003] The purpose of the utility model is to provide a safety protection device for an isolation knife switch of a generator-transformer group, which solves the problems raised in the above-mentioned background technology.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:
[0005] A safety protection device for a generator-transformer group isolating knife switch, comprising: an insulator rod, a knife switch seat fixed to the insulator rod, support frames fixed to the bottom and front and rear side surfaces of the knife switch seat, the knife switch seat being hinged to a knife switch connecting rod, and a reinforcement device for supporting the knife switch connecting rod connected between the support frames on the front and rear side surfaces;
[0006] The reinforcement device includes a support slot frame and two locking clamps, each of the locking clamps is fixed with an adjustment plate, the adjustment plate is connected to the seat plates at both ends of the support slot frame by fastening bolts, and a support plate for supporting the knife switch connecting rod is connected to the support slot frame by adjusting bolts, and a clamping block for adjusting the support height is inserted between the support plate and the support slot frame.
[0007] In the safety protection device for the isolation knife switch of a generator-transformer group, a rubber pad is fixed on the support plate.
[0008] The described safety protection device for the isolation knife switch of the generator-transformer group, the described locking clamp includes an inner clamp and an outer clamp, the described inner clamp and the described outer clamp are buckled and connected by bolts, and the described inner clamp is fixed to the described adjustment plate.
[0009] The safety protection device for the isolation knife switch of the generator-transformer group is described, and the support slot frame is threadedly connected with a limiting bolt. Beneficial effects
[0010] 1. The utility model is provided with a reinforcement device. After the knife switch connecting rod is closed, it will fall into the reinforcement device. The reinforcement device can effectively clamp the knife switch connecting rod to prevent the knife switch connecting rod from being blown and shaken in windy weather and causing breakage.
[0011] 2. The reinforcement device of the present invention can adjust the support height so that it can adapt to slight changes in the height of the knife switch connecting rod after closing, so that it can be fully supported on the knife switch connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is the main view of the utility model;
[0013] Figure 2 It is a top view of the utility model;
[0014] Figure 3 It is a front view of the reinforcement device;
[0015] Figure 4 is a top view of the reinforcement device;
[0016] Figure 5 is a side view of the reinforcement device;
[0017] Figure 6 for Figure 4 AA section view;
[0018] Figure 7 Schematic diagram of the structure of the clamping block;
[0019] In the figure: 1. Knife switch connecting rod; 2. Reinforcement device; 3. Support frame; 4. Drive motor; 5. Knife switch seat; 6. Insulator rod; 21. Support slot frame; 22. Adjustment bolt; 23. Rubber pad; 24. Limit bolt; 25. Seat plate; 26. Adjustment plate; 27. Locking clamp; 28. Clamp block; 29. Support plate; 271. External clip; 272. Internal clip; 281. Sliding hole; 30. Fastening bolt. DETAILED DESCRIPTION
[0020] See also Figures 1 to 7 A safety protection device for a generator-transformer isolation switch, comprising: an insulator rod 6, a switch base 5 fixed to the insulator rod, support frames 3 fixed to the bottom and front and rear sides of the switch base, the switch base hinged to a switch connecting rod 1, and a reinforcement device 2 for supporting the switch connecting rod connected between the support frames on the front and rear sides;
[0021] By setting up a reinforcement device, the knife switch connecting rod will fall into the reinforcement device after closing the switch, and the reinforcement device can effectively clamp the knife switch connecting rod to prevent the knife switch connecting rod from being blown and shaken in strong winds and causing breakage;
[0022] The reinforcement device includes a support slot frame 21 and two locking clamps 27, and an adjustment plate 26 is fixed on each of the locking clamps. The adjustment plate is connected to the seat plates at both ends of the support slot frame by fastening bolts. A sliding hole 261 is provided on the adjustment plate. A support plate 29 for supporting the knife switch connecting rod is connected to the support slot frame through an adjusting bolt 22. The adjusting bolt is welded at the bottom of the support plate, and the adjusting bolt passes through the circular hole at the bottom of the support slot frame and is threadedly connected to the nut. A clamping block 28 for adjusting the support height is inserted between the support plate and the support slot frame.
[0023] The support plate is fixed with a rubber pad 23, which can effectively protect the knife switch connecting rod through the setting of the rubber pad;
[0024] The locking clip includes an inner clip 272 and an outer clip 271 . The inner clip and the outer clip are buckled and connected by bolts. The inner clip is fixed to the adjustment plate.
[0025] Locking clips are used to secure to the support frame.
[0026] The support trough frame is threadedly connected with a limiting bolt 24.
[0027] Working principle: When in use, remove the outer clip, then loosen the fastening bolts, buckle the two inner clips on the support frames on the front and rear sides, readjust the positions of the two locking clips so that the inner clips are completely buckled on the support frame, and then fix the outer clips and the inner clips with bolts. After fixing, adjust the position of the support slot frame according to the position of the knife gate connecting rod, slide the support slot frame to adjust the position and tighten the fastening bolts, then adjust the height of the support plate according to the position after the knife gate connecting rod is completely dropped, loosen the nut on the adjusting bolt, slide the support plate up and down, unscrew the limit bolt, and then insert different numbers of the lower part according to the sliding height. The clamping block, and then tighten the nut on the adjusting bolt to adjust the height of the support plate. After adjusting the height, screw the limiting bolt so that the height of the top of the screw is higher than the lower surface of the uppermost clamping block. This can limit the position of the clamping block, thus achieving the safety of the device. After the knife switch connecting rod is completely closed and dropped, it will fall on the support plate. Rubber pads are fixed on the support plate, and side pads 31 are fixed on both sides of the support slot frame. The side pads are also rubber pads, which can effectively play an insulating role. This support slot frame can clamp the knife switch connecting rod to form a protection, and can prevent it from being blown and shaken and causing breakage in windy weather.
Claims
1. A safety protection device for a generator-transformer group isolation switch, comprising: An insulator rod, wherein a knife gate seat is fixed on the insulator rod, and support frames are respectively fixed to the bottom and front and rear side surfaces of the knife gate seat. The knife gate seat is hinged to the knife gate connecting rod, and is characterized in that a reinforcement device for supporting the knife gate connecting rod is connected between the support frames on the front and rear side surfaces; The reinforcement device includes a support slot frame and two locking clamps, each of the locking clamps is fixed with an adjustment plate, the adjustment plate is connected to the seat plates at both ends of the support slot frame by fastening bolts, and a support plate for supporting the knife switch connecting rod is connected to the support slot frame by adjusting bolts, and a clamping block for adjusting the support height is inserted between the support plate and the support slot frame.
2. The generator-transformer group isolation switch safety protection device according to claim 1 is characterized by: A rubber pad is fixed on the support plate.
3. The generator-transformer group isolation switch safety protection device according to claim 2 is characterized by: The locking clip includes an inner buckle clip and an outer buckle clip. The inner buckle clip and the outer buckle clip are buckled and connected by bolts. The inner buckle clip is fixed to the adjustment plate.
4. The generator-transformer group isolation switch safety protection device according to claim 3 is characterized by: The support trough frame is threadedly connected with a limiting bolt.