High-voltage isolating switch with anti-falling function

Abstract

The utility model relates to the field of high-voltage isolating switch devices, and discloses a high-voltage isolating switch with an anti-drop function, which comprises a base, insulators are mounted on two sides of the top of the base, metal plates are fixedly connected to the tops of the two insulators, vertical blocks are fixedly connected to the tops of the two metal plates, and the vertical blocks are fixedly connected to the top of the base. A knife switch is mounted above the two metal plates, a mounting assembly and an anti-falling assembly which are used for assisting in loading electric wires are mounted in the metal plate on the left side, the anti-falling assembly is used for stabilizing the closing state of the knife switch and ensuring stable operation of equipment, the anti-falling assembly is mounted in the knife switch, and a fixing hook is mounted in the knife switch. According to the utility model, after the sliding rod slides, under the action of the torsion spring, the fixing hook can be inserted into the groove in the fixing plate, so that the stability of the knife switch in a switching-on state is ensured, and the mounted auxiliary mounting plate can reduce the difficulty of mounting a high-voltage wire by an operator and reduce the risk of high-altitude operation.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage disconnecting switchgear, and in particular to a high-voltage disconnecting switchgear with anti-disconnection function. Background Technology

[0002] This invention relates to a high-voltage disconnecting switch with anti-disconnection function, mainly used for circuit switching and isolation in high-voltage power systems to ensure the safe operation of electrical equipment. The device consists of a switch box, knife switch assembly, insulating support, and other structural components. High-voltage disconnecting switches are widely used in power substations, distribution rooms, and large industrial facilities, effectively interrupting fault currents and maintaining the safety and stability of equipment.

[0003] However, existing high-voltage disconnect switches have a technical problem in practical use: the switch blades are difficult to keep stable in the closed state. When opening or closing the circuit, the mechanical connections and corresponding spring mechanisms of the switch blade assembly may loosen or fatigue after long-term use, making the switch blades prone to jitter or displacement in the closed state. This unstable closing state can lead to unstable current, which in turn affects the safety and reliability of the entire power system, causing equipment damage or downtime, increasing maintenance costs and safety hazards.

[0004] To address the above problems, a high-voltage disconnecting switch with anti-disconnection function is proposed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a high-voltage disconnecting switch with anti-disconnection function, which aims to solve the problem that after long-term use, the high-voltage disconnecting switch may have loose or fatigued components, which may cause the switch to vibrate or deviate when closed.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a high-voltage disconnecting switch with anti-disconnection function, comprising:

[0007] The base has insulators installed on both sides of its top. A metal plate is fixedly connected to the top of each of the two insulators. A vertical block is fixedly connected to the top of each of the two metal plates. A switch is installed above the two metal plates. An installation assembly for assisting in loading wires is installed inside the left metal plate.

[0008] An anti-disengagement component is used to stabilize the closed state of the switch and ensure stable operation of the equipment. It is installed inside the switch, and a fixing hook is installed inside the switch. The fixing hook and the switch are connected by a rotating shaft. A torsion spring is sleeved on the outside of the rotating shaft. A sliding groove is opened on one side of the switch, and a sliding rod is slidably connected inside the sliding groove. A fixing plate is fixedly connected to the outside of the left side of the upright block, and a groove is opened inside the fixing plate.

[0009] As a further description of the above technical solution:

[0010] The mounting assembly includes an auxiliary mounting plate, with two bolts installed inside the metal plate. The auxiliary mounting plate is slidably connected to the outside of the two bolts, and two tension springs are arranged at the front and rear inside the metal plate.

[0011] As a further description of the above technical solution:

[0012] The right-side upright block is connected to the guillotine via a round shaft, and a wrench is fixedly connected to the outside of the round shaft.

[0013] As a further description of the above technical solution:

[0014] The outer side of the slide bar is fixedly connected to the inside of the fixed hook, and the slide bar can drive the bottom of the fixed hook to rotate.

[0015] As a further description of the above technical solution:

[0016] The bottom of the fixing hook can be inserted into the inside of the groove.

[0017] As a further description of the above technical solution:

[0018] The outer side of the rotating shaft is rotatably connected to the inside of the guillotine, and the middle part of the rotating shaft is fixedly connected to the inside of the fixed hook.

[0019] As a further description of the above technical solution:

[0020] The top of the tension spring is fixedly connected to a slot inside the metal plate, and the bottom of the tension spring is fixedly connected to the top of the auxiliary mounting plate.

[0021] As a further description of the above technical solution:

[0022] The top of the bolt is threaded with a nut.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, in order to ensure that the switch is stable and does not fall off in the closed state, after closing, the sliding rod is slid to the upper part of the sliding groove. At this time, under the action of the torsion spring, the fixing hook will swing towards the left upright block, and the bottom of the fixing hook will be inserted into the groove inside the fixing plate to ensure the stability of the switch in the closed state.

[0025] 2. In this utility model, in order to reduce the difficulty of installation for operators, when installing high-voltage wires, simply pull down the auxiliary installation plate, then place the high-voltage wire washer on the outside of the bolt, then loosen the auxiliary installation plate and tightly clamp the wire washer under the metal plate. The operator does not need to place the washer with one hand and tighten the bolt with the other, which can ensure the speed of installation and reduce the danger of working at height. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a high-voltage disconnecting switch with anti-disconnection function proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a high-voltage disconnector switch with anti-disconnection function proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the fixing hook of a high-voltage disconnecting switch with anti-detachment function proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the tension spring of a high-voltage disconnecting switch with anti-disconnection function proposed in this utility model.

[0030] Legend:

[0031] 1. Base; 2. Insulator; 3. Metal plate; 4. Stand block; 5. Wrench; 6. Knife switch; 7. Nut; 8. Fixing plate; 9. Shaft; 10. Torsion spring; 11. Fixing hook; 12. Slide rod; 13. Slide groove; 14. Groove; 15. Bolt; 16. Auxiliary mounting plate; 17. Tension spring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 - Figure 3This utility model provides an embodiment of a high-voltage disconnecting switch with anti-disengagement function, comprising: a base 1, insulators 2 installed on both sides of the top of the base 1, metal plates 3 fixedly connected to the top of each insulator 2, and upright blocks 4 fixedly connected to the top of each metal plate 3; a switch 6 installed above the two metal plates 3; an installation assembly for assisting in the loading of wires and an anti-disengagement assembly installed inside the left metal plate 3 to stabilize the closed state of the switch 6 and ensure stable operation of the equipment; the anti-disengagement assembly is installed inside the switch 6; a fixing hook 11 is installed inside the switch 6; and the fixing hook 11 and the switch 6 are connected by a rotating shaft 9. A torsion spring 10 is fitted on the outer side of the rotating shaft 9. A sliding groove 13 is provided on one side of the knife switch 6. A sliding rod 12 is slidably connected inside the sliding groove 13. A fixing plate 8 is fixedly connected to the outer side of the left vertical block 4. A groove 14 is provided inside the fixing plate 8. The right vertical block 4 and the knife switch 6 are connected by a round shaft. A wrench 5 is fixedly connected to the outer side of the round shaft. The outer side of the sliding rod 12 is fixedly connected to the inside of the fixing hook 11. The sliding rod 12 can drive the bottom of the fixing hook 11 to rotate. The bottom of the fixing hook 11 can be inserted into the inside of the groove 14. The outer side of the rotating shaft 9 is rotatably connected to the inside of the knife switch 6. The middle part of the rotating shaft 9 is fixedly connected to the inside of the fixing hook 11.

[0034] Specifically, in this embodiment, two insulators 2 are installed on the top of the base 1. A metal plate 3 is fixedly connected to the top of each insulator 2. A vertical block 4 is fixedly connected to the top of the metal plate 3. The right vertical block 4 is rotatably connected to the switch 6 via a round shaft. The switch 6 can be rotated using a wrench 5 fixed to the outside of the round shaft. The left end of the switch 6 is manually rotated to the outside of the right vertical block 4 to perform the closing operation. Since a fixing hook 11 is installed inside the switch 6, and the fixing hook 11 is installed therein via a rotating shaft 9 and a torsion spring 10, before the switch 6 performs the closing operation, the sliding rod 12 is fixed inside the lower part of the sliding groove 13, which drives the fixing hook 11 to resist the elastic force of the torsion spring 10. After the closing is completed, the sliding rod 12 can be slid. At this time, the fixing hook 11 will deflect to the initial state under the elastic force of the torsion spring 10. A fixing plate 8 is installed above the fixing hook 11, and a groove 14 is opened inside the fixing plate 8. During the deflection process of the fixing hook 11, it will be inserted into the groove 14, ensuring the stability of the closing state.

[0035] Reference Figure 4 The mounting components include an auxiliary mounting plate 16. Two bolts 15 are installed inside the metal plate 3. The auxiliary mounting plate 16 is slidably connected to the outside of the two bolts 15. Two tension springs 17 are arranged at the front and rear inside the metal plate 3. The top of the tension springs 17 is fixedly connected to the slot inside the metal plate 3, and the bottom of the tension springs 17 is fixedly connected to the top of the auxiliary mounting plate 16. Nuts 7 are threadedly connected to the top of the bolts 15.

[0036] Specifically, when installing the wire washer onto the bolt 15, the operator needs to stabilize the washer with one hand and tighten the bolt 15 with a tool with the other, which is very inconvenient. Using the auxiliary mounting plate 16 makes the installation easier for the operator. Simply pull down the auxiliary mounting plate 16, then place the wire washer on the outside of the two bolts 15. After releasing the auxiliary mounting plate 16, the washer is clamped by the tension spring 17, and the wire washer is pressed tightly against the bottom of the metal plate 3. At this time, the operator can use both hands to perform the subsequent operation of tightening the bolt 15, reducing the danger of working at height.

[0037] Working principle: To ensure the stability of the switch 6 in the closed state, after the switch 6 is closed, the sliding rod 12 slides upward from the lower position inside the sliding groove 13. At the same time, under the torque of the torsion spring 10, the lower part of the fixing hook 11 is inserted into the groove 14 on the inner side of the fixing plate 8, which can ensure the stability of the switch 6. To open the switch, simply slide the sliding rod 12 to the lower position inside the sliding groove 13, and the fixing hook 11 will slide out from the groove 14 and remain fixed, which facilitates the subsequent opening operation. In order to facilitate the installation of the wire pad at both ends of the high-voltage disconnect switch, the operator only needs to pull down the auxiliary mounting plate 16, then place the wire pad on the outside of the bolt 15. After loosening the auxiliary mounting plate 16, the pad is pressed tightly against the bottom of the metal plate 3 under the action of the tension spring 17. At this time, the operator can tighten the bolt 15, which reduces the difficulty of installation for the operator in high-altitude operations.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-voltage disconnecting switch with anti-disconnection function, characterized in that, include: The base (1) has insulators (2) installed on both sides of the top of the base (1), and metal plates (3) are fixedly connected to the top of the two insulators (2). A stand (4) is fixedly connected to the top of the two metal plates (3). A switch (6) is installed above the two metal plates (3). An installation assembly for assisting in loading wires is installed inside the left metal plate (3). An anti-detachment component is used to stabilize the closed state of the switch (6) and ensure the stable operation of the equipment. It is installed inside the switch (6). A fixing hook (11) is installed inside the switch (6). The fixing hook (11) and the switch (6) are connected by a rotating shaft (9). A torsion spring (10) is sleeved on the outside of the rotating shaft (9). A sliding groove (13) is opened on one side of the switch (6). A sliding rod (12) is slidably connected inside the sliding groove (13). A fixing plate (8) is fixedly connected to the outside of the left side of the upright block (4). A groove (14) is opened inside the fixing plate (8).

2. A high-voltage disconnecting switch with anti-disconnection function according to claim 1, characterized in that: The mounting assembly includes an auxiliary mounting plate (16), and two bolts (15) are installed inside the metal plate (3). The auxiliary mounting plate (16) is slidably connected to the outside of the two bolts (15). Two tension springs (17) are arranged at the front and back inside the metal plate (3).

3. A high-voltage disconnecting switch with anti-disconnection function according to claim 1, characterized in that: The right-side upright block (4) and the guillotine (6) are connected by a round shaft, and a wrench (5) is fixedly connected to the outside of the round shaft.

4. A high-voltage disconnecting switch with anti-disconnection function according to claim 1, characterized in that: The outer side of the slide rod (12) is fixedly connected to the inside of the fixed hook (11), and the slide rod (12) can drive the bottom of the fixed hook (11) to rotate.

5. A high-voltage disconnecting switch with anti-disconnection function according to claim 1, characterized in that: The bottom of the fixing hook (11) can be inserted into the inside of the groove (14).

6. A high-voltage disconnecting switch with anti-disconnection function according to claim 1, characterized in that: The outer side of the rotating shaft (9) is rotatably connected to the inside of the knife gate (6), and the middle part of the rotating shaft (9) is fixedly connected to the inside of the fixed hook (11).

7. A high-voltage disconnecting switch with anti-disconnection function according to claim 2, characterized in that: The top of the tension spring (17) is fixedly connected to the slot inside the metal plate (3), and the bottom of the tension spring (17) is fixedly connected to the top of the auxiliary mounting plate (16).

8. A high-voltage disconnecting switch with anti-disconnection function according to claim 2, characterized in that: The top of the bolt (15) is threaded with a nut (7).

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