Double-isolation switch interlocking device
By designing a dual isolation switch interlocking device including a plate body, a lock head, a control button, an electromagnetic and a switch, the safety problem in the operation sequence of the dual isolation switch is solved, and when an isolation switch is closed, it is realized. The effect of the inability to open the switch improves the safety of product operation.
Patent Information
- Application Number
- CN202411718757.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-02-11
AI Technical Summary
The prior art is difficult to ensure that when one isolation switch is in the closing position, the other isolation switch cannot be opened in the operating sequence of the dual isolation switch, improving product operation safety.
A double isolating switch interlocking device is designed, including a first actuating mechanism, a second actuating mechanism and an interlocking module. The interlocking module consists of a plate body, a lock head, a control button, an electromagnetic iron and a conversion switch. When the first operating mechanism is in the closing position, an electromagnetic lock is used to interlock until the first operating mechanism rotates to the opening position. Then press and hold the control button, the solenoid is powered, rotate the key to the unlocked position, and after pulling out the key, the control circuit interlocking point of the second actuator is turned on, and the key is pulled out to unlock the second actuator.
Through this device, it is ensured that when one isolation switch is in the closed position, the other isolation switch cannot be opened, improving the safety of product operation.
Smart Images
Figure CN119419089A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of isolating switches, and in particular to an interlocking device for double isolating switches. Background Art
[0002] At present, there are two types of switch interlocking schemes: mechanical interlocking and electric interlocking. Existing electric interlocking schemes all involve software control and are used in situations where reliability, safety, and confidentiality are required to be high. Although the mechanical interlocking mechanism has a simple structure, low cost, and high reliability, it only applies to the situation where the switch is arranged horizontally, and the switch interlocking is achieved through the relative position relationship between the switch handle and the interlocking mechanism. Therefore, it is necessary to combine the structure of software control and mechanical control to achieve the interlocking of the disconnector. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a double isolating switch interlocking device. When it comes to the product operation sequence, when one of the products is in the closed position, the electromagnetic lock is used for interlocking, and the other product cannot be opened, thereby improving the product operation safety.
[0004] In order to solve the above technical problems, the technical solution of the present invention is: a double isolating switch interlocking device, the innovation of which is: comprising a first operating mechanism, a second operating mechanism and an interlocking module; the interlocking module is connected between the first operating mechanism and the second operating mechanism; The interlocking module includes a plate body, a lock head, a control button, an electromagnet and a conversion switch; the plate body has a pair of plates and is arranged parallel to each other; the lock head is installed between the plate bodies, and one end of the lock head passes through the plate body and extends to the outer side of the plate body, and the lock head is equipped with a key; the control button is arranged between the plate bodies, and one end of the control button passes through the plate body and extends to the outer side of the plate body; the conversion switch is arranged on the outer side of another plate body of the plate body, and the conversion switch is control-connected with the lock head; the electromagnet is arranged between the plate bodies and is located beside the lock head, and the electromagnet is energized by the control button; the electromagnet is control-connected with the lock head; When the first operating mechanism is in the closing position, the key on the lock head on the interlocking device is in the locking position, and the key cannot be rotated or pulled out at this time; the normally open point of the conversion switch is connected in series with the control circuit of the second operating mechanism; when the first operating mechanism is rotated to the opening position, the control button is pressed and held, and the electromagnet is energized until the key is rotated to the unlocking position of the lock head and the key is pulled out; at this time, the normally open point of the conversion switch becomes a normally closed point; the interlocking point of the control circuit of the second operating mechanism is connected, and the key can be pulled out to unlock the second operating mechanism. At this time, the closing point of the conversion switch of the first operating mechanism circuit is a normally open point, and the first operating mechanism cannot move.
[0005] Furthermore, the transfer switch is provided with transfer switch normally closed points E1 / TR-62 and E1 / TR-63; and the control button is SY / 89T.
[0006] The advantages of the present invention are: 1) The device of the present invention is installed in the disconnector mechanism box, and the device is used to provide protection for safe operation; when it comes to the operation sequence of double disconnectors, when one of the disconnectors is in the closed position, an electromagnetic lock is used for interlocking, and the other disconnector cannot be opened, thereby improving the safety of product operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0008] Figure 1 The present invention is a front view of a double isolating switch interlocking device structure.
[0009] Figure 2 The figure is a side view of a double isolating switch interlocking device structure of the present invention.
[0010] Figure 3 The figure is a top view of a double isolating switch interlocking device structure of the present invention.
[0011] Figure 4 The present invention is a circuit schematic diagram of a double isolating switch interlocking device structure. DETAILED DESCRIPTION
[0012] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0014] like Figures 1 to 4 A double isolating switch interlocking device shown comprises a first operating mechanism, a second operating mechanism and an interlocking module 1; the interlocking module 1 is connected between the first operating mechanism and the second operating mechanism.
[0015] The interlocking module 1 includes a plate body 11, a lock head 12, a control button 13, an electromagnet 14 and a conversion switch 15; the plate body 11 has a pair of plates 11 and is arranged parallel to each other; the lock head 12 is installed between the plate bodies 11 and one end of the lock head 12 passes through the plate body 11 and extends to the outer side of the plate body 11, and the lock head 12 is equipped with a key; the control button 13 is arranged between the plate bodies 11, and one end of the control button 13 passes through the plate body and extends to the outer side of the plate body 11; the conversion switch 15 is arranged on the outer side of the other plate body 11 of the plate body 11, and the conversion switch 15 is control-connected to the lock head 12; the electromagnet 14 is arranged between the plate bodies 11 and is located next to the lock head, and the electromagnet 14 is energized by the control button; the electromagnet 14 is control-connected to the lock head.
[0016] When the first operating mechanism is in the closing position, the key on the lock head on the interlocking device is in the locking position, and the key cannot be rotated or pulled out at this time; the normally open point of the conversion switch is connected in series with the control circuit of the second operating mechanism; when the first operating mechanism is rotated to the opening position, the control button is pressed and held, and the electromagnet is energized until the key is rotated to the unlocking position of the lock head and the key is pulled out; at this time, the normally open point of the conversion switch becomes a normally closed point; the interlocking point of the control circuit of the second operating mechanism is connected, and the key can be pulled out to unlock the second operating mechanism. At this time, the closing point of the conversion switch of the first operating mechanism circuit is a normally open point, and the first operating mechanism cannot move.
[0017] The transfer switch 15 is provided with transfer switch normally closed points E1 / TR-62 and E1 / TR-63; the control button is SY / 89T.
[0018] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and these changes and improvements shall all fall within the scope of the present invention claimed for protection.
Claims
1. A double isolating switch interlocking device, characterized in that: It comprises a first operating mechanism, a second operating mechanism and an interlocking module; the interlocking module is connected between the first operating mechanism and the second operating mechanism; The interlocking module includes a plate body, a lock head, a control button, an electromagnet and a conversion switch; the plate body has a pair of plates and is arranged parallel to each other; the lock head is installed between the plate bodies, and one end of the lock head passes through the plate body and extends to the outer side of the plate body, and the lock head is equipped with a key; the control button is arranged between the plate bodies, and one end of the control button passes through the plate body and extends to the outer side of the plate body; the conversion switch is arranged on the outer side of another plate body of the plate body, and the conversion switch is control-connected with the lock head; the electromagnet is arranged between the plate bodies and is located beside the lock head, and the electromagnet is energized by the control button; the electromagnet is control-connected with the lock head; When the first operating mechanism is in the closing position, the key on the lock head on the interlocking device is in the locking position, and the key cannot be rotated or pulled out at this time; the normally open point of the conversion switch is connected in series with the control circuit of the second operating mechanism; when the first operating mechanism is rotated to the opening position, the control button is pressed and held, and the electromagnet is energized until the key is rotated to the unlocking position of the lock head and the key is pulled out; at this time, the normally open point of the conversion switch becomes a normally closed point; the interlocking point of the control circuit of the second operating mechanism is connected, and the key can be pulled out to unlock the second operating mechanism. At this time, the closing point of the conversion switch of the first operating mechanism circuit is a normally open point, and the first operating mechanism cannot move.
2. A double isolating switch interlocking device according to claim 1, characterized in that: The transfer switch is provided with transfer switch normally closed points E1 / TR-62 and E1 / TR-63; the control button is SY / 89T.