CN2342460Y

CN2342460Y - Position display switch for air breaker

Info

Publication number: CN2342460Y
Application number: CN 98207361
Authority: CN
Inventors: 黄继英; 刘宗芳
Original assignee: BEIJING SWITCH FACTORY
Current assignee: BEIJING SWITCH FACTORY
Priority date: 1998-07-27
Filing date: 1998-07-27
Publication date: 1999-10-06
Anticipated expiration: 2008-07-27

Abstract

The utility model relates to a position display switch for an air breaker. The utility model is particularly suitable for a breaker which is installed by making use of drawer type. The utility model is characterized in that the utility model comprises a display switch 15 which is installed at the lower part of a drawer seat 10 of the breaker, and a pedestal 1 which is fixed on the drawer seat 10; a limiting plate 3 which is provided with an action plate 4 is installed at the lower part of the pedestal 1, a restoring spring 2 is installed on the limiting plate, two microswitches 5 are installed at the upper part of the pedestal 1, and insulating plates 6 are arranged at both sides of the microswitches 5; in addition, a terminal installing plate 9 which is provided with a wire connecting terminal 8 is fixed to the left side of the pedestal 1. The utility model has the advantages of convenient operation and conveniently automatic monitoring.

Description

A kind of air circuit position display switch

The utility model relates to a kind of air circuit position display switch, is particularly useful for the circuit breaker position display switch of drawer type mounting means.

Existing drawer type air circuit is seen Fig. 1, does not have lever position indicator at all, therefore not only makes troubles to the user in daily use, does not know to be in when circuit breaker pushes which kind of operating state; Be open position, test position, or link position, and can not realize automatic monitoring.

The purpose of this utility model just is that overcoming prior art does not have position display, unhandy shortcoming, and then a kind of air circuit position display switch is provided, automatically-monitored to realize.

The purpose of this utility model is achieved in that

A kind of air circuit position display switch, the circuit breaker position display switch that is particularly useful for the drawer type mounting means, the display switch 15 that it is characterized in that being installed in side under the circuit breaker drawer base 10 comprises the base 1 that is fixed on the drawout chassis 10, the limiting plate 3 of band action plate 4 is equipped with in the below of base 1, on the limiting plate and limit spring 2 is housed, two sensitive switches 5 are equipped with in the top of base 1, the both sides of sensitive switch 5 are equipped with insulation board 6, and the terminal mounting panel 9 that binding post 8 is housed is being fixed in the left side of this external base 1.

The purpose of this utility model can also further realize by following technical measures:

Aforesaid position display switch, switch 15 are protected with cover 7 except the mounting panel 9 that binding post 8 is housed.

Aforesaid position display switch, the upper-lower position of sensitive switch 5 is adjustable.

The utility model has the advantages that, can show three kinds of operating states such as disconnection, test and link position of circuit breaker, and be convenient to realize automatically-monitored.

Below in conjunction with Figure of description and embodiment, the utility model is further described.

Figure of description:

Fig. 1 is the air circuit schematic diagram of general drawer type.

Fig. 2 is a position display construction of switch schematic diagram of the present utility model.

Fig. 3 is the end view of Fig. 2.

Fig. 4 is three kinds of working state schematic representations of position indicator of the present utility model applicable cases in the drawer type air circuit.

Embodiment:

Fig. 2 is the position display construction of switch schematic diagram of one of the utility model embodiment.

Fig. 3 is the end view of Fig. 2.

Fig. 4 is the three kind operating states of present embodiment when using in the drawer type air circuit.

A whole set of position display switch 15 is installed in the below of air circuit drawout chassis 10, it comprises the base 1 that is fixed on the drawout chassis 10, the limiting plate 3 of band action plate 4 is equipped with in the below of base 1, spring 2 is housed on the limiting plate 3, two sensitive switches 5 also are housed above base 1 simultaneously, and being equipped with insulation board 6 in the both sides of sensitive switch 5, the terminal mounting panel 9 that binding post 8 is housed is being fixed in the left side of this external base 1.The position display signal is from binding post 8 outputs, to show the operating state of circuit breaker.

The operation principle of position indicator is as follows:

When inserting, direction as shown by arrow D to drawout chassis 10 (band stain part among Fig. 4) when circuit breaker 11.Circuit breaker promotes limiting plate 3 and makes corresponding sports, drive action plate 4 simultaneously, bossing on action plate 4 (for example 4-1) is when depressing roller 13, and the contact of sensitive switch 5 (for example 5S1) is switched on or switched off, and just signal can be outputed to (not shown) on the display unit.The effect of spring 2 is the limiting plate usefulness that resets.

Adjust for convenience, the upper-lower position of sensitive switch 5 is adjustable, to guarantee the contact of sensitive switch contact.During work, three kinds of operating states of circuit breaker as shown in Figure 4:

1, off position is seen (initial condition) shown in Fig. 4 A:

This moment, circuit breaker 11 inserted drawout chassis 10, and major loop 14 and control loop 12 are all disconnected.

2, test position, see shown in Fig. 4 B:

Circuit breaker 11 is pushed into test position, and major loop 14 is obstructed, and control loop 12 is connected, and the bossing 4-1 of action plate 4 depresses the roller 13 of sensitive switch 5S1 at this moment, sensitive switch 5S1 displacement, and in its contact, the normal switching closed normally closed disconnection; Sensitive switch 5S2 state is constant.

3, link position, see shown in Fig. 4 C:

Circuit breaker 11 is pushed into link position, major loop 14 and control loop 12 are all connected, bossing 4-2 on the action plate 4 depresses the roller 13 of sensitive switch 5S2 at this moment, bossing 4-1 on the action plate 4 leaves sensitive switch 5S1, the 5S1 upper contact head resets, and the normally open contact closure on the sensitive switch 5S2, normally closed interlock disconnects.

The user just can pass through binding post 8 link position shows signal like this, observes directly the residing operating state of circuit breaker, has made things convenient for automation mechanized operation, is convenient to automatic monitoring.

Claims

1, a kind of air circuit position display switch, the circuit breaker position display switch that is particularly useful for the drawer type mounting means, the display switch (15) that it is characterized in that being installed in side under the circuit breaker drawer base (10) comprises the base (1) that is fixed on the drawout chassis (10), the limiting plate (3) of band action plate (4) is equipped with in the below of base (1), on the limiting plate and back-moving spring (2) is housed, two sensitive switches (5) are equipped with in the top of base (1), the both sides of sensitive switch (5) are equipped with insulation board (6), and the terminal mounting panel (9) that binding post (8) is housed is being fixed in the left side of this external base (1).

2, position display switch according to claim 1 is characterized in that switch (15) except the mounting panel (9) that binding post (8) are housed, and is protected with cover (7).

3, according to claim 1,2 described position display switches, it is characterized in that the upper-lower position of sensitive switch (5) is adjustable.