Split type isolating switch

Abstract

The invention relates to a split type disconnecting switch, which comprises three groups of combined modules and a transmission assembly, the three groups of combined modules are all connected and arranged in a conductive circuit and form a three-phase structure, and the transmission assembly is used for connecting the three groups of combined modules, so that the three groups of combined modules can jointly generate opening and closing actions. The combined module comprises a base, two sets of disconnecting switch bodies, two connecting pieces and a connecting rod, the two sets of disconnecting switch bodies are installed at the two ends of the top of the base respectively, and each disconnecting switch body is rotationally connected with one connecting piece; the ends, away from the disconnecting switch body, of the two connecting pieces are rotationally connected with the two ends of the connecting rod respectively. According to the utility model, the rotary supporting part, the insulating part and the conductive part in the isolating switch main body of the combined module are arranged in a matched manner, so that when the split type isolating switch is maintained, each module can be quickly and conveniently disassembled, replaced and installed, the convenience of overhauling the isolating switch is improved, and the cost required by maintaining and replacing accessories is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of disconnect switches, and particularly to a split-type disconnect switch. Background Art

[0002] In the power system, as an important electrical equipment, the disconnect switch is mainly used to isolate the power supply during equipment or line maintenance to ensure the safety of the staff, and also plays a role in switching the circuit during normal operation. With the rapid development of the power industry, the performance requirements for disconnect switches are increasing day by day, especially in terms of reliability, safety and maintainability.

[0003] The traditional design of disconnect switches often uses fasteners such as bolts to connect into an integrated structure, that is, key components such as its rotating support part, insulating part and conducting part are integrated together to form an inseparable whole. Although this design ensures the compactness of the structure and the simplicity of installation to a certain extent, it brings many inconveniences during daily maintenance and fault repair. Once a certain component in the disconnect switch fails or needs to be replaced, it is usually necessary to remove the entire switch from the power system and then perform complex disassembly work to replace the damaged component. This process not only takes time and effort, increases the power outage time and maintenance cost, but also may cause unnecessary damage to other intact components of the switch during the disassembly process, reducing the service life of the equipment. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] The present invention provides a split-type disconnect switch, which solves the problems raised in the above background art.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the present invention provides the following technical solutions: A split-type disconnect switch includes three sets of combined modules and a transmission component. The three sets of combined modules are all connected and arranged in the conductive circuit to form a three-phase structure. The transmission component is used to connect the three sets of combined modules so that the three sets of combined modules can jointly generate opening and closing actions. The combined module includes a base, two disconnect switch bodies, two connecting pieces and a connecting rod. The two disconnect switch bodies are respectively installed at both ends of the top of the base, and each disconnect switch body is rotatably connected to a connecting piece. The ends of the two connecting pieces away from the disconnect switch bodies are respectively rotatably connected to both ends of the connecting rod.

[0008] Preferably, the disconnector body includes a rotating support portion, an insulating portion, and a conductive portion. The bottom of the rotating support portion is fixedly installed on the top of the base by a locking member. The bottom end of the insulating portion is rotatably connected to the rotating support portion, and the insulating portion is rotatably connected to the adjacent connecting piece by a pin shaft. The conductive portion is installed on the top of the insulating portion. The deflection movement of the conductive portions in the two disconnector bodies realizes the opening and closing actions of the circuit.

[0009] Further preferably, the rotating support portion includes a fixed seat, a bearing, a fixed rod, and a locking ring. The fixed seat is fixedly connected to the base by bolts. The bearing is installed in the inner cavity of the fixed seat. The bottom end of the fixed rod is rotatably connected to the fixed seat. An external thread is provided on the outer wall of the top end of the fixed rod, and the locking ring is sleeved on the top end of the fixed rod and threadedly connected thereto.

[0010] Further preferably, the insulating portion includes an insulator, two first limiting disks, and an insertion shaft. The two first limiting disks are symmetrically formed at the upper and lower ends of the insulator. The insertion shaft is formed at the center of the first limiting disk at the bottom of the insulator, and the bottom end of the insertion shaft is inserted into the bearing to enable it to deflect and move by means of the bearing.

[0011] Further preferably, the conductive portion includes a second limiting disk, a metal column, and a buckling conductive sheet. The metal column is formed at the center of the top of the second limiting disk, and a buckling conductive sheet fixedly connected thereto is sleeved outside the metal column.

[0012] Further preferably, notches located on the same axis are formed on the second limiting disk and the two first limiting disks. The fixed rod passes through the notches on the second limiting disk and the two first limiting disks, and the bottom of the locking ring presses against the second limiting disk, so that the insulating portion and the conductive portion can deflect and move integrally.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides a split disconnector, which has the following beneficial effects:

[0015] In the present invention, through the cooperative setting of the rotating support portion, the insulating portion, and the conductive portion in the disconnector body of the combined module, when the split disconnector is maintained, the disassembly and replacement installation of each module can be carried out quickly and conveniently, thereby improving the convenience of disconnector maintenance and reducing the cost required for maintenance and replacement of accessories. Description of the drawings

[0016] Figure 1 It is a schematic structural diagram of the combined module in the split disconnector according to the embodiment;

[0017] Figure 2Schematic structural diagram of a disconnector body according to an embodiment;

[0018] Figure 3 is Figure 2 Schematic structural diagram of the disassembled disconnector body in

[0019] In the figure: 10, base; 20, disconnector body; 21, rotating support part; 211, fixed seat; 212, bearing; 213, fixed rod; 214, locking ring; 22, insulating part; 221, insulator; 222, first limiting disc; 223, inserting shaft; 23, conducting part; 231, second limiting disc; 232, metal column; 233, buckling conducting sheet; 30, connecting piece; 40, connecting rod. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1 to 3 , a split-type disconnector, including three groups of combined modules and a transmission assembly. The three groups of combined modules are all connected and arranged in the conductive circuit to form a three-phase structure. The transmission assembly is used to connect the three groups of combined modules so that the three groups of combined modules can jointly generate opening and closing actions. The driving transmission assembly for the three groups of combined modules is a prior art and will not be elaborated here.

[0022] In this embodiment, the combined module includes a base 10, two groups of disconnector bodies 20, two connecting pieces 30, and a connecting rod 40. The two groups of disconnector bodies 20 are respectively installed at both ends of the top of the base 10, and each disconnector body 20 is rotatably connected to a connecting piece 30. The ends of the two connecting pieces 30 away from the disconnector bodies 20 are respectively rotatably connected to both ends of the connecting rod 40. When the disconnector bodies 20 in the three groups of combined modules are driven by the driving transmission assembly to move, the two disconnector bodies 20 in each group of combined modules can deflect towards each other or away from each other by the connection and cooperation of the connecting piece 30 and the connecting rod 40, so as to complete the opening and closing adjustment between the two disconnector bodies 20.

[0023] In this embodiment, the disconnector body 20 includes a rotating support portion 21, an insulating portion 22, and a conductive portion 23. The bottom of the rotating support portion 21 is fixedly installed on the top of the base 10 by a fastener such as a bolt. The bottom end of the insulating portion 22 is rotatably connected to the rotating support portion 21, and the insulating portion 22 is rotatably connected to the adjacent connecting piece 30 by a pin shaft. The conductive portion 23 is installed on the top of the insulating portion 22, and the deflection movement of the conductive portions 23 in the two disconnector bodies 20 realizes the opening and closing actions of the circuit.

[0024] In this embodiment, the rotating support portion 21 includes a fixed seat 211, a bearing 212, a fixed rod 213, and a locking ring 214. The fixed seat 211 is fixedly connected to the base 10 by a bolt. The bearing 212 is installed in the inner cavity of the fixed seat 211 and is used to cooperate with the connection of the insulating portion 22. The bottom end of the fixed rod 213 is rotatably connected to the fixed seat 211. An external thread is provided on the outer wall of the top end of the fixed rod 213, and the locking ring 214 is sleeved on the top end of the fixed rod 213 and is threadedly connected thereto. The fixed rod 213 and the locking ring 214 are used to cooperate with the connection of the insulating portion 22 and the conductive portion 23.

[0025] In this embodiment, the insulating portion 22 includes an insulator 221, two first limiting disks 222, and an insertion shaft 223. The two first limiting disks 222 are symmetrically formed at the upper and lower ends of the insulator 221. The insertion shaft 223 is formed at the center of the first limiting disk 222 at the bottom of the insulator 221, and the bottom end of the insertion shaft 223 is inserted into the bearing 212 so that it can deflect by using the bearing 212.

[0026] In this embodiment, the conductive portion 23 includes a second limiting disk 231, a metal column 232, and a snap-on conductive sheet 233. The metal column 232 is formed at the center of the top of the second limiting disk 231. A snap-on conductive sheet 233 fixedly connected thereto is sleeved outside the metal column 232. The two disconnector bodies 20 each complete the opening and closing actions of the circuit by the contact or separation of the snap-on conductive sheets 233 in their conductive portions 23.

[0027] In this embodiment, notches are formed on both the second limiting disc 231 and the two first limiting discs 222. After the conductive part 23 is placed on the insulating part 22, the notches formed on the second limiting disc 231 and the two first limiting discs 222 can be adjusted to be located on the same axis. Then, the fixing rod 213 can be deflected to pass through the notches on the second limiting disc 231 and the two first limiting discs 222. Next, the locking ring 214 can be rotated so that the bottom of the locking ring 214 presses against the second limiting disc 231, and the conductive part 23 and the insulating part 22 can be driven to deflect and move simultaneously. Through the cooperative setting of the rotating support part 21, the insulating part 22, and the conductive part 23 in the disconnector main body 20 of the combined module, when the split disconnector is maintained, the disassembly and replacement installation of each module can be carried out quickly and conveniently, thereby improving the convenience of disconnector maintenance and reducing the cost required for maintenance and replacement of accessories.

[0028] In all the solutions mentioned above, for the connection between two components, welding, connection with bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split-type disconnecting switch, comprising three groups of combined modules and a transmission component. The three groups of combined modules are all connected and arranged in an electric conduction line to form a three-phase structure. The transmission component is used to connect the three groups of combined modules so that the three groups of combined modules can jointly generate opening and closing actions, and is characterized in that, The combined module includes a base (10), two sets of disconnector bodies (20), two connecting pieces (30), and a connecting rod (40). The two sets of disconnector bodies (20) are respectively installed at both ends of the top of the base (10), and each disconnector body (20) is rotatably connected to a connecting piece (30). The ends of the two connecting pieces (30) away from the disconnector bodies (20) are respectively rotatably connected to both ends of the connecting rod (40).

2. The split-type disconnecting switch according to claim 1, characterized in that: The disconnector body (20) includes a rotary support part (21), an insulating part (22), and a conductive part (23). The bottom of the rotary support part (21) is installed and fixed on the top of the base (10) by a locking member. The bottom end of the insulating part (22) is rotatably connected to the rotary support part (21), and the insulating part (22) is rotatably connected to the adjacent connecting piece (30) by a pin shaft. The conductive part (23) is installed on the top of the insulating part (22). The deflection movement of the conductive parts (23) in the two sets of disconnector bodies (20) realizes the opening and closing actions of the circuit.

3. The split-type disconnecting switch according to claim 2, characterized in that: The rotary support part (21) includes a fixed seat (211), a bearing (212), a fixed rod (213), and a locking ring (214). The fixed seat (211) is fixedly connected to the base (10) by bolts. The bearing (212) is installed in the inner cavity of the fixed seat (211). The bottom end of the fixed rod (213) is rotatably connected to the fixed seat (211). External threads are provided on the outer wall of the top end of the fixed rod (213), and the locking ring (214) is sleeved on the top end of the fixed rod (213) and is threadedly connected thereto.

4. The split-type disconnecting switch according to claim 3, characterized in that: The insulating part (22) includes an insulator (221), two first limiting disks (222), and an insertion shaft (223). The two first limiting disks (222) are symmetrically formed at the upper and lower ends of the insulator (221). The insertion shaft (223) is formed at the center of the first limiting disk (222) at the bottom of the insulator (221), and the bottom end of the insertion shaft (223) is inserted into the bearing (212) to enable it to deflect and move by using the bearing (212).

5. The split-type disconnecting switch according to claim 4, wherein: The conductive part (23) includes a second limiting disk (231), a metal column (232), and a buckling conductive sheet (233). The metal column (232) is formed at the center of the top of the second limiting disk (231). A buckling conductive sheet (233) fixedly connected thereto is sleeved outside the metal column (232).

6. The split-type disconnecting switch according to claim 5, wherein: Gaps located on the same axis are formed on the second limiting disk (231) and the two first limiting disks (222). The fixed rod (213) passes through the gaps on the second limiting disk (231) and the two first limiting disks (222), and the bottom of the locking ring (214) presses against the second limiting disk (231), so that the insulating part (22) and the conductive part (23) can deflect and move integrally.

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