A monitoring device for the position of the isolating switch of a switch cabinet
By designing a monitoring device including a switch, an insulating box, a switch knife, a conductive pole and a signal transmission module, the problem that staff cannot remotely identify the status of the isolation switch is solved, and remote monitoring and safety hazards are reduced.
Patent Information
- Application Number
- CN202421323372.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-11
AI Technical Summary
When repairing the circuit, the staff cannot remotely identify the opening and closing status of the circuit through the isolating switch, resulting in safety hazards.
A monitoring device including a switch, an insulating box and a switch knife is designed. The conductive rod and the tail rod are rotated synchronously with the switch knife, and combined with the conductive block and a signal transmission module, different signals are sent for the staff to identify the opening and closing state of the isolation switch.
The staff remotely monitors the opening and closing status of the isolating switch, avoiding the damage caused to the maintenance staff caused by circuit reconnection caused by the isolation switch failure, and reducing safety hazards.
Smart Images
Figure CN222720257U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of isolating switch sensing detection, in particular to a monitoring device for the position of an isolating switch in a switch cabinet. Background Art
[0002] The isolating switch, also known as the knife switch, is a switching device that controls the circuit current to be connected or disconnected by opening and closing operations. The isolating switch is mainly used to reliably isolate the part of the high-voltage distribution device that needs to be shut down from the live part to ensure the safety of maintenance work.
[0003] When repairing a circuit, it is necessary to use an isolating switch to control the circuit to be disconnected to ensure that the circuit is in an unpowered state. However, due to the high mechanical failure rate of the isolating switch, after the isolating switch is controlled to disconnect the circuit, the isolating switch may be reconnected to the circuit due to mechanical failure. When the staff is repairing the circuit, they cannot observe the open and closed state of the isolating switch, which can easily cause safety hazards and is very dangerous. Therefore, a device that can remotely monitor the position of the isolating switch is designed. Utility Model Content
[0004] Based on the above description, the utility model provides a monitoring device for the position of the isolating switch of a switch cabinet to solve the problem that when the staff is repairing the circuit, they cannot remotely control the opening and closing of the circuit through the isolating switch to identify whether the circuit is energized.
[0005] The utility model provides a technical solution to the above-mentioned technical problems as follows: a monitoring device for the position of an isolating switch in a switch cabinet, comprising an electric switch, an insulating box and a knife switch installed on the inner side of the electric switch, conductors are arranged at both ends of the inner side of the insulating box, a conductive structure for rotating and cooperating with the two conductors to form different circuits is installed in the insulating box, one end of the conductive structure is insulated and connected to one end of the knife switch, and the rotation synchronization is controlled, a power cord for supplying power to the conductive structure is arranged on the outer side of the insulating box, and a signal transmitting module for cooperating with the two conductors to perform different circuit processing is arranged in the insulating box.
[0006] On the basis of the above technical solution, the present invention can also be improved as follows.
[0007] Furthermore, an inner cavity is provided inside the insulating box, and a movable groove connected to the inner cavity is provided at the center of the surface of the insulating box, and the movable groove extends to both ends of the insulating box.
[0008] Furthermore, the conductor is composed of conductive blocks, which are installed at both ends of the inner wall of the insulating box away from the movable slot. The conductive blocks are symmetrically distributed with the center of the insulating box as the origin, and the end of the conductive block close to the movable slot is semicircular.
[0009] Furthermore, the conductive structure is composed of a mounting seat, a conductive rod and a tail rod. The mounting seat is installed at the center of the inner wall of the insulating box away from the movable groove. One end of the conductive rod is installed in the mounting seat, and the other end of the conductive rod passes through the movable groove and extends to the outside of the insulating box. The surface of the conductive rod is in contact with the semicircular end of the conductive block.
[0010] Furthermore, the tail rod is installed at one end of the conductive rod away from the mounting seat and is perpendicular to the conductive rod. The power line is installed on the outside of the insulating box and is electrically connected to the conductive rod.
[0011] Furthermore, the tail rod and the gate knife are fitted together at one end close to each other, and a notch is provided on the surface of the tail rod close to the gate knife, and a screw connected and fixed to the gate knife is installed in the notch.
[0012] Furthermore, the signal transmission module is composed of a control template and a signal transmitter, the control template is installed inside the insulating box and is electrically connected to the two conductive blocks respectively, and the signal transmitter is installed outside the insulating box and is electrically connected to the control template.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0014] The utility model uses a conductive rod and a tail rod, in conjunction with a conductive block and a power line, the power line supplies power to the conductive rod, and the conductive rod can rotate synchronously with the knife switch when the tail rod is connected to the knife switch. When the knife switch is unfolded and closed, the conductive rod can rotate in different directions and contact the two conductive blocks respectively, so that the control template can send different signals for identification by the signal transmitter when different circuits are connected. After receiving the signal, the staff can remotely monitor the opening and closing states of the isolating switch, so as to avoid injuries to maintenance personnel caused by reconnection of the circuit due to machine failure after the isolating switch is closed, thereby preventing the occurrence of safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A schematic diagram of the structure of a monitoring device for the position of an isolating switch in a switch cabinet provided in an embodiment of the utility model;
[0016] Figure 2 This is a structural schematic diagram of the connection relationship between the control template and the insulation box in the embodiment of the utility model;
[0017] Figure 3 This is a schematic cross-sectional structure diagram of an insulation box in an embodiment of the utility model;
[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0019] 1. Electric switch; 11. Switch knife; 2. Insulation box; 21. Inner chamber; 22. Movable slot; 3. Mounting seat; 4. Conductive block; 5. Conductive rod; 51. Tail rod; 52. Notch; 6. Power cord; 7. Control template; 8. Signal transmitter. DETAILED DESCRIPTION
[0020] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0022] See also Figure 1-3 The utility model discloses a monitoring device for the position of an isolating switch in a switch cabinet, comprising a switch 1, an insulating box 2 and a knife switch 11 installed inside the switch 1, conductors are arranged at both ends of the inner side of the insulating box 2, a conductive structure for rotating and cooperating with two conductors to form different circuits is installed inside the insulating box 2, one end of the conductive structure is insulated and connected with one end of the knife switch 11, and the synchronization of rotation is controlled, a power line 6 for supplying power to the conductive structure is arranged outside the insulating box 2, and a signal transmitting module for cooperating with the two conductors to process different circuits is arranged inside the insulating box 2.
[0023] See also Figure 3 An inner chamber 21 is provided inside the insulating box 2, and an active groove 22 connected to the inner chamber 21 is provided in the center of the surface of the insulating box 2. The active groove 22 extends to both ends of the insulating box 2. The conductor is composed of a conductive block 4. The conductive block 4 is installed at both ends of the inner wall of the insulating box 2 away from the active groove 22. The conductive blocks 4 are symmetrically distributed with the center of the insulating box 2 as the origin. The end of the conductive block 4 close to the active groove 22 is semicircular. The setting of the semicircular end of the conductive block 4 makes it convenient for the conductive rod 5 to fit with it during the activity to connect the circuit, thereby powering the control template 7.
[0024] See also Figure 1The conductive structure is composed of a mounting seat 3, a conductive rod 5 and a tail rod 51. The mounting seat 3 is mounted on the center of the inner wall of the insulating box 2 away from the movable groove 22. One end of the conductive rod 5 is mounted in the mounting seat 3. The other end of the conductive rod 5 passes through the movable groove 22 and extends to the outside of the insulating box 2. The surface of the conductive rod 5 is fitted with the semicircular end of the conductive block 4. The tail rod 51 is mounted on the end of the conductive rod 5 away from the mounting seat 3 and is perpendicular to the conductive rod 5. The power line 6 is mounted on the outside of the insulating box 2 and is electrically connected to the conductive rod 5. One end of the conductive rod 5 in the mounting seat 3 is electrically connected to the power line 6. After the power line 6 is connected to the power supply, the guide rod can be continuously powered. When the conductive rod 5 is connected to any conductive After the blocks 4 are in contact, the formed circuit can be powered at any time, so that the control template 7 and the signal transmitter 8 can operate and work. The tail rod 51 is an insulating rod body. The end of the tail rod 51 and the knife 11 that are close to each other fits each other. A slot 52 is provided on the surface of the tail rod 51 close to the knife 11. A screw connected and fixed to the knife 11 is installed in the slot 52. After the tail rod 51 is connected to the knife 11 by the screw, the conductive rod 5 can rotate synchronously with the knife 11 under the drive of the tail rod 51. When the knife 11 is opened and closed, the conductive rod 5 can rotate in two different directions respectively to contact the two conductive blocks 4, forming different circuits to make the control template 7 work.
[0025] See also Figure 2 The signal transmission module is composed of a control template 7 and a signal transmitter 8. The control template 7 is installed inside the insulating box 2 and is electrically connected to the two conductive blocks 4 respectively. The signal transmitter 8 is installed outside the insulating box 2 and is electrically connected to the control template 7. When the knife 11 is closed, the conductive rod 5 rotates synchronously with the knife 11 and fits with the conductive block 4 on the closed side of the knife 11 to form a circuit. When the circuit is connected, the control template 7 issues a command to make the signal transmitter 8 send a signal wavelength prompting the disconnector to be closed so that the staff can receive it and continuously monitor to ensure personal safety during the line detection process. After the knife 11 is closed, the signal transmitter 8 sends a signal wavelength prompting the disconnector to be closed so that the staff can receive it and continuously monitor to ensure personal safety during the line detection process. When the mechanical failure occurs and the circuit is reopened, the conductive rod 5 rotates synchronously with the switch 11, and fits with the conductive block 4 on the open side of the switch 11 to form a circuit. When the circuit is connected, the control template 7 issues an instruction to make the signal transmitter 8 send a signal wavelength to prompt that the disconnector is in the open state for the staff to receive. When the switch 11 fails and stays between the open and closed states, the conductive rod 5 does not contact any conductive block 4, and the staff cannot receive the signal. After the above two situations occur, the staff can promptly identify the abnormal state of the switch 11, stop the line detection work, and protect the personal safety of the staff.
[0026] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A monitoring device for the position of an isolating switch of a switch cabinet, comprising a switch (1), an insulating box (2) and a switch blade (11) installed inside the switch (1), characterized in that: Conductors are arranged at both ends of the inner side of the insulating box (2), a conductive structure is installed in the insulating box (2) for rotating and cooperating with the two conductors to form different circuits, one end of the conductive structure is insulated and connected to one end of the switch (11), and the rotation synchronization is controlled, a power line (6) is arranged on the outer side of the insulating box (2) for supplying circuit power to the conductive structure, and a signal transmission module is arranged in the insulating box (2) for cooperating with the two conductors to perform different circuit processing.
2. The monitoring device for the position of the isolating switch of the switch cabinet according to claim 1 is characterized in that: An inner chamber (21) is provided inside the insulating box (2), and a movable groove (22) connected to the inner chamber (21) is provided at the center of the surface of the insulating box (2), and the movable groove (22) extends to both ends of the insulating box (2).
3. The monitoring device for the position of the isolating switch of the switch cabinet according to claim 2 is characterized in that: The conductor is composed of conductive blocks (4), which are mounted on two ends of the inner wall of the insulating box (2) away from the movable slot (22). The conductive blocks (4) are symmetrically distributed with the center of the insulating box (2) as the origin, and one end of the conductive block (4) close to the movable slot (22) is semicircular.
4. The switch cabinet isolating switch position monitoring device according to claim 3 is characterized in that: The conductive structure is composed of a mounting seat (3), a conductive rod (5) and a tail rod (51); the mounting seat (3) is mounted on the center of the inner wall of the insulating box (2) away from the movable groove (22); one end of the conductive rod (5) is mounted in the mounting seat (3); the other end of the conductive rod (5) passes through the movable groove (22) and extends to the outside of the insulating box (2); the surface of the conductive rod (5) is in contact with the semicircular end of the conductive block (4).
5. The switch cabinet isolating switch position monitoring device according to claim 4, characterized in that: The tail rod (51) is mounted on an end of the conductive rod (5) away from the mounting seat (3) and is perpendicular to the conductive rod (5); the power line (6) is mounted on the outside of the insulating box (2) and is electrically connected to the conductive rod (5).
6. The monitoring device for the position of the disconnector of the switch cabinet according to claim 4 is characterized in that: The tail rod (51) and the gate knife (11) are fitted together at one end thereof which is close to each other, and a notch (52) is provided on the surface of the tail rod (51) at one end which is close to the gate knife (11), and a screw which is connected and fixed to the gate knife (11) is installed in the notch (52).
7. The monitoring device for the position of the disconnector of the switch cabinet according to claim 3 is characterized in that: The signal transmission module is composed of a control template (7) and a signal transmitter (8); the control template (7) is installed inside the insulating box (2) and is electrically connected to the two conductive blocks (4) respectively; the signal transmitter (8) is installed outside the insulating box (2) and is electrically connected to the control template (7).