CN213601780U

CN213601780U - HD13 knife switch with switch-on position indication

Info

Publication number: CN213601780U
Application number: CN202021805217.7U
Authority: CN
Inventors: 董文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-07-02
Anticipated expiration: 2030-08-26

Abstract

The patent of the utility model discloses a HD13 knife switch of area switching-on position indication belongs to the electric switch class. The knife switch comprises a switch main body and a switch-on position detection device. The tool switch is characterized in that three micro switches are embedded in the inner side of a moving contact of a tool switch main body and are connected in series, when the tool switch is switched on in place, the moving contact presses a corresponding swing rod of the micro switch, the micro switch is switched on and off, a switching-on indicating circuit is switched on, and a switching-on indicating lamp is turned on to indicate the position of switching-on. The utility model discloses a benefit is, whether the operating personnel of being convenient for observe the knife switch directly perceivedly closes a floodgate and targets in place. The patent of the utility model discloses a simple structure.

Description

HD13 knife switch with switch-on position indication

Technical Field

The utility model belongs to electricity, electric switch class.

Background

The HD13 knife switch is widely used for low-voltage power distribution cabinets and plays a role in isolating power supplies and switching operation. However, in practical use of the switch, the operating handle is often in the switching-on position, and the contact does not completely enter the switching-on position, which causes the contact to be heated or even burnt, and seriously affects the safety of the device and the power supply safety. This type switch is often installed on the cubical switchboard, and operating personnel can't openly directly perceivedly observe the contact and whether close a floodgate and target in place at the cabinet body, must open the back cabinet door and just can confirm that the contact closes a floodgate and target in place, causes inconvenience for the use.

Disclosure of Invention

The utility model aims at increasing the switch-on position and displaying, and enabling an operator to visually observe whether the knife switch contact is in place.

The utility model discloses a following mode realizes: the inner side of the knife switch contact is provided with a microswitch, when the knife switch contact is switched on in place, the microswitch is switched on, and a knife switch switching-on indicating lamp is turned on through an external circuit.

Compared with the prior art, the utility model has the following advantages: simple structure, simple wiring and convenient use. The operator can confirm that the knife switch is switched on in place without opening the switch cabinet.

Drawings

Fig. 1 is a schematic view (front view) of the installation position of the microswitch.

Fig. 2 is a schematic view (left side view) of the installation position of the microswitch.

Fig. 3 is a schematic view (front view) of the installation of the microswitch.

Fig. 4 is a schematic view (left side view) of the installation of the microswitch.

Fig. 5 is a diagram of the internal wiring of the knife switch.

Fig. 6 is an external wiring diagram of the knife switch.

Detailed Description

Referring to fig. 1 and 2, 3 micro switches k1, k2 and k3 are arranged at the positions shown in the HD13 knife switch, and the micro switches are insulated from the inside; the installation mode of the microswitch is shown in fig. 3 and 4, the microswitch installation seat and the knife switch base are bonded by epoxy resin glue, and the microswitch installation seat and the microswitch are fixed by screws; the internal wiring of the knife switch is shown in fig. 5, and microswitches k1, k2 and k3 are connected in series; the knife switch external wiring is shown in figure 6.

When 3 moving contacts of the knife switch are all switched on in place, the moving contacts press the corresponding swing rod of the microswitch, the microswitches k1, k2 and k3 are all conducted, the

terminals

1 and 2 are conducted, and a switch-on indicator lamp of the knife switch is turned on.

When any one of the 3 moving contacts of the knife switch is not closed in place, more than one of the micro switches k1, k2 and k3 are disconnected, the

terminals

1 and 2 are disconnected, and the switch closing switch indicator lamp of the knife switch is turned off.

Claims

1. A knife switch with a switch-on position indicator comprises a switch main body and a microswitch and is characterized in that the microswitch is embedded into the knife switch main body, and when the knife switch is switched on in place, a moving contact presses down a rocker of the microswitch to close the microswitch, a switch-on indicating circuit is switched on, and a switch-on indicating lamp is turned on.