CN104332836A - Anti-electric shock electric meter box - Google Patents

Abstract

The invention provides an anti-electric shock electric meter box, belongs to the technical field of low-voltage distribution and solves the problem that electric-shock accidents are caused by contacting electric parts by accident during operation in the electric meter box. The anti-electric shock electric meter box comprises a box body, an electric meter and a distribution line. The anti-electric shock electric meter box is characterized by further comprising a normally-opened button switch; the normally-opened button switch is sequentially connected to an electric meter line between the distribution line and an input end of the electric meter; in the case that an electric meter box door is closed, a button handle of the normally-opened button switch is pressed so as to allow a power supply connected; in the case that the electric meter box door is opened, the power supply is disconnected. According to the arrangement, with the normally-opened button switch arranged in the electric meter box, instant power-off happens once the electric meter door is opened, in this way, the operator is protected from electric shock caused by contacting the electric parts by accident, and safety of the operator is improved.

Description

Anti-shock meter box

technical field

The invention belongs to the technical field of low-voltage power distribution, and in particular relates to an electric shock-proof electric meter box.

Background technique

In the low-voltage power distribution system, overvoltage and overcurrent protection devices such as circuit breakers or fuses, or manual power-off devices such as knife switches are usually installed in the meter box. When replacing or maintaining electrical devices, the meter box is usually opened and disconnected. The circuit breaker or the fuse is pulled out to cut off the power, and the operation is performed in the meter box. If you accidentally touch the live part, you will get an electric shock.

Contents of the invention

The purpose of the invention is to solve the problems in the prior art and provide an electric shock-proof electric meter box.

The technical scheme that the present invention takes for solving the problems of the technologies described above is:

The anti-shock electric meter box includes a box body, an electric meter and a distribution line, and is characterized in that it also includes a normally open button switch; the normally open button switch is connected in series in the electric meter line between the distribution line and the input end of the electric meter, When the door is closed, press the button handle of the normally open button switch to turn on the power; when the door of the meter box is opened, the power is turned off.

The normally open button switch is installed at the bottom of the box body, and the distribution line is penetrated from the bottom of the box body to directly connect with the normally open button switch, and is kept in the box body without exposing the distribution line.

The normally open button switch includes a housing, a contact piece, a return spring, a conductive plate and a button handle, the conductive plate is fixedly connected to one end of the button handle, and a return spring is arranged between the conductive plate and the housing, and the conductive plate is placed between the button and the button. When the handle is under pressure, it is in contact with the contact piece. The contact piece includes an input contact piece and an output contact piece.

Compared with the prior art, the present invention has the following beneficial effects:

The invention adopts a normally open button switch in the meter box, so that the power will be cut off immediately after the door of the meter box is opened, so that the operator will not get an electric shock due to accidentally touching a charged part, and further improves the safety of the operator.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a sectional view along A-A in Fig. 1 .

In the figure: 1—electric meter; 2—normally open button switch; 3—distribution line; 4—meter wire; 5—box; 6—housing; 7—return spring; 8—output contact piece; 9—conductive plate ; 10—button handle; 11—input contact sheet.

Detailed ways

As shown in Fig. 1 and Fig. 2, the anti-shock ammeter box includes box body 5, ammeter 1 and distribution line 3, and also includes normally open button switch 2; In the ammeter line 4 between the input ends, when the ammeter box door is closed, the button handle 10 of the normally open button switch is pressed to make the power supply connected; when the ammeter box door is opened, the power supply is disconnected.

The normally open button switch 2 is installed at the bottom of the box body 5, and the distribution line 3 penetrates through the bottom of the box body 5 and is directly connected with the normally open button switch 2, and remains in the box body 5 without exposing the distribution line 3.

The normally open button switch 2 includes a housing 6, a contact piece, a return spring 7, a conductive plate 9 and a button handle 10, the conductive plate 9 is fixedly connected to one end of the button handle 10, and between the conductive plate 9 and the housing 6 A return spring 7 is arranged between them, and the conductive plate 9 is in contact with the contact piece when the button handle 10 is under pressure. The contact piece includes an input contact piece 11 and an output contact piece 8. 4 is connected to the output contact piece 8.

Claims (3)

1. Anti-shock electric meter box, including box body (5), electric meter (1) and distribution line (3), characterized in that: it also includes a normally open button switch (2); the normally open button switch (2) is connected in series In the meter line (4) between the distribution line (3) and the meter input terminal, when the meter box door is closed, press the button handle 10 of the normally open button switch to turn on the power; when the meter box door is opened, the power disconnect. 2. The anti-shock electric meter box according to claim 1, characterized in that: the normally open button switch (2) is installed at the bottom of the box (5), and the distribution line (3) is connected by the box (5) The bottom penetrates directly to connect with the normally open button switch (2), and keeps in the box body (5) without exposing the distribution wire (3). 3. The anti-shock electric meter box according to claim 1, characterized in that: the normally open button switch (2) includes a housing (6), a contact piece, a return spring (7), a conductive plate (9) and a button handle (10), the conductive plate (9) is fixed at one end of the button handle (10), and a return spring (7) is set between the conductive plate (9) and the housing (6), and the conductive plate (9) is When the button handle (10) is under pressure, it contacts with the contact piece, the contact piece includes the input contact piece (11) and the output contact piece (8), the distribution line (3) is connected to the input contact piece (11), the meter wire (4) Connect to the output contact piece (8).