Isolating switch magnetic induction sensing double-confirmation device

Abstract

The utility model relates to the field of disconnecting switches, in particular to a magnetic induction sensing double-confirmation device of a disconnecting switch. The device comprises a switch-on and switch-off indicating ball, an extension shaft connected with the switch-on and switch-off indicating ball, and a rainproof cover, an induction box and a base which are connected in sequence, the induction box comprises a magnetic steel assembly and two reed switch sensors which are distributed at 90 degrees relative to the magnetic steel assembly, the opening and closing indication ball comprises a ball head and a main shaft which are integrally connected, the ball head is located on the inner side of the rainproof cover, the main shaft is distributed in the radial direction of the ball head, and the magnetic steel assembly is arranged on the main shaft in a sleeving mode. According to the utility model, a basis for distinguishing the opening and closing positions of the isolating switch is added, and a double-confirmation criterion of the opening and closing positions of the isolating switch is formed with a traditional distinguishing mode, so that the switching state of the isolating switch can be accurately distinguished.

Description

Technical Field

[0001] This utility model relates to the field of disconnect switches, and in particular to a magnetic induction sensing dual confirmation device for disconnect switches. Background Technology

[0002] Traditional disconnector switch position monitoring relies on signals from the switching of auxiliary switches to determine the open or closed position. This method, which relies on only one basis for determining open or closed positions, may result in inaccurate judgments and has room for improvement. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a magnetic induction sensing dual confirmation device for disconnecting switches. This device adds a criterion for determining the open and closed positions of the disconnecting switch, which, together with the traditional determination method, forms a "dual confirmation" criterion for the open and closed positions of the disconnecting switch, enabling accurate determination of the switching state of the disconnecting switch.

[0004] The technical solution of this utility model is a magnetic induction sensing dual confirmation device for disconnecting switches, including an open / close indicator ball, an extension shaft connected to the open / close indicator ball, and a rain cover, a sensing box, and a base connected in sequence; the sensing box includes a magnet assembly and two reed switch sensors distributed at 90° relative to the magnet assembly; the open / close indicator ball includes an integrally connected ball head and a main shaft, the ball head is located inside the rain cover, the main shaft is distributed radially along the ball head, and the magnet assembly is mounted on the main shaft.

[0005] Preferably, the sensing box also includes a housing and wiring terminals, both of which are mounted on the housing, which has a wire outlet hole.

[0006] Preferably, waterproof pads are provided between the rain cover and the outer shell, between the outer shell and the base, and on the side of the base facing away from the outer shell.

[0007] Preferably, one end of the extension shaft has an internal thread that is threaded to the output shaft of the disconnecting switch.

[0008] Preferably, the split-open indicator ball spindle has a central hole, and the other end of the extension shaft is inserted into the central hole.

[0009] Preferably, the outer circumferential surface of the split / open indicator ball spindle has a first screw hole, and a first screw that abuts against the extension shaft is threaded into the first screw hole.

[0010] Preferably, the magnet assembly includes a collar and a magnet embedded in the outer peripheral surface of the collar.

[0011] Preferably, the outer circumferential surface of the collar of the magnet assembly has a second screw hole, and a second screw that abuts against the main shaft of the split indicator ball is threaded into the second screw hole.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] In this invention, the magnet embedded in the magnet assembly moves in a non-contact manner with the reed switch sensor, influencing the reed switch sensor to send a position signal. Based on the open / close position status of the open / close indicator ball, the reed switch sensor and the magnet assembly sense each other within a reliable distance, sending an open / close position status signal of the isolation mechanism. This adds a new criterion for judging the open / close position of the isolating switch to the traditional open / close judgment criteria, forming a "double confirmation" criterion for the open / close position of the isolating switch, which can accurately determine the switching state of the isolating switch. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 for Figure 1 Structural sectional view;

[0016] Figure 3 for Figure 1 Exploded view of the structure.

[0017] Reference numerals: 1. Rain cover; 2. Open / close indicator ball; 3. Extension shaft; 4. Sensor box; 41. Housing; 411. Cable outlet; 42. Magnet assembly; 43. Reed switch sensor; 44. Terminal block; 5. Base; 6. Waterproof pad. Detailed Implementation

[0018] like Figures 1-3 As shown, this embodiment proposes a magnetic induction sensing dual-confirmation device for an isolating switch, including an open / close indicator ball 2, an extension shaft 3 connected to the open / close indicator ball 2, and a rain cover 1, a sensing box 4, and a base 5 connected in sequence. The sensing box 4 includes a housing 41, a magnet assembly 42, two reed switch sensors 43 distributed at 90° relative to the magnet assembly 42, and a wiring terminal 44 disposed on the housing 41. The housing 41 has a wire outlet hole 411, and the wiring of the reed switch sensors 43 converges at the wiring terminal 44, is led out through the wire outlet hole 411 via a cable, and is connected to the local control cabinet. The reed switch sensors 43 are also disposed on the housing 41. The open / close indicator ball 2 includes an integrally connected ball head and a main shaft. The ball head is located inside the rain cover 1, and the main shaft is radially distributed along the ball head and has a central hole. The magnet assembly 42 includes a collar and a magnet embedded in the outer circumferential surface of the collar. The magnet assembly 42 is fitted onto the main shaft by the collar. The outer circumferential surface of the collar of the magnet assembly 42 has a second screw hole, and a second screw is threaded into the second screw hole and abuts against the main shaft of the split indicator ball 2. The second screw can be an M4 machine screw, thereby realizing the fast connection between the collar of the magnet assembly 42 and the main shaft of the split indicator ball 2.

[0019] One end of the extension shaft 3 has an internal thread that connects to the output shaft of the disconnect switch, and the other end of the extension shaft 3 is inserted into the central hole. The outer circumferential surface of the main shaft of the disengagement indicator ball 2 has a first screw hole, and a first screw is threaded into the first screw hole and abuts against the extension shaft 3. The first screw can be an M4 metric screw, which can fasten the extension shaft 3 inserted into the central hole of the main shaft of the disengagement indicator ball 2.

[0020] like Figure 2 As shown, in order to improve the waterproof performance of the entire device, waterproof pads 6 are provided between the rain cover 1 and the outer shell 41, between the outer shell 41 and the base 5, and on the side of the base 5 facing away from the outer shell 41.

[0021] In this embodiment, when the isolating mechanism moves open or close, it drives the open / close indicator ball 2 and the magnet assembly 42 to move. The magnet embedded in the magnet assembly 42 and the reed switch sensor 43 perform non-contact relative movement, affecting the reed switch sensor 43 to send a position signal. According to the open / close position status of the open / close indicator ball 2, the reed switch sensor 43 and the magnet assembly 42 sense each other within a reliable distance and send out the open / close position status signal of the isolating mechanism. This adds a basis for judging the open / close position of the isolating switch. It forms a non-similar open / close position indication with the traditional auxiliary switch contact method for judging the open / close position of the isolating switch equipment, and constitutes a "double confirmation" criterion for the open / close position of the isolating switch, which can accurately determine the switching state of the isolating switch.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A magnetic induction sensing dual confirmation device for isolating switches, characterized in that, The device comprises a split and combination indicating ball (2), an extension shaft (3) connected with the split and combination indicating ball (2), and a rain cover (1), an induction box (4) and a base (5) connected in sequence; the induction box (4) comprises a magnetic steel assembly (42) and two dry reed sensors (43) distributed at 90° with respect to the magnetic steel assembly (42); the split and combination indicating ball (2) comprises a ball head and a main shaft connected integrally, the ball head is located inside the rain cover (1), the main shaft is distributed radially along the ball head, and the magnetic steel assembly (42) is sleeved on the main shaft.

2. The magnetic induction sensing dual confirmation device for isolator according to claim 1, characterized in that, The induction box (4) further comprises a shell (41) and a wiring terminal (44), the dry reed sensor (43) and the wiring terminal (44) are arranged on the shell (41), and the shell (41) is provided with a wire outlet hole (411).

3. The magnetic induction sensing dual confirmation device for isolator according to claim 2, characterized in that, Waterproof pads (6) are arranged between the rain cover (1) and the shell (41), between the shell (41) and the base (5), and on the side surface of the base (5) away from the shell (41).

4. The magnetic induction sensing dual confirmation device for isolator according to claim 2, characterized in that, One end of the extension shaft (3) is provided with an internal thread for thread connection with an output shaft of the disconnecting switch.

5. A magnetic induction sensing dual confirmation device for isolator according to claim 4, wherein, The main shaft of the split and combination indicating ball (2) is provided with a middle hole, and the other end of the extension shaft (3) is inserted into the middle hole.

6. A magnetic induction sensing dual confirmation device for isolator according to claim 5, characterized in that, The outer circumferential surface of the main shaft of the split and combination indicating ball (2) is provided with a first screw hole, and a first screw is threadedly connected at the first screw hole and abuts against the extension shaft (3).

7. The magnetic induction sensing dual confirmation device for isolator according to claim 1, wherein, The magnetic steel assembly (42) comprises a sleeve ring and magnetic steel inlaid on the outer circumferential surface of the sleeve ring.

8. A magnetic induction sensing dual confirmation device for isolator according to claim 7, characterized in that, The outer circumferential surface of the sleeve ring of the magnetic steel assembly (42) is provided with a second screw hole, and a second screw is threadedly connected at the second screw hole and abuts against the main shaft of the split and combination indicating ball (2).

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