CN2195815Y - Pulling safety power-saving switch - Google Patents

Abstract

The utility model provides a pull safety power-saving switch, comprising an outer shell, a relay, a pull switch, an indicating light with red and green colors, etc. The power supply circuit can be automatically cut out when power failure. The utility model has the advantages of convenient fabrication, low cost, and convenient operation, used as the switch of various appliances using single-phase alternating current.

Description

Pulling safety power-saving switch

The utility model is a kind of stay-supported Power-saving safety switch, belongs to the electric switch field.

At present, the common electrical air cock that sell in market only makes to disconnect and connect circuit by the people, have a power failure and the people of formula electrical appliance forgets under the situation that the power cutoff switch just leaves for resembling when making electrical appliance suddenly, this regular tap can not be cut off the electricity supply automatically, if in case incoming call, because of electrical equipment is connected, so just cause dangerous easily and the waste electric energy.And Power-saving safety switch of the prior art (be as number of patent application 88203199 " Power-saving safety switch "), though can play the effect of auto power off, but this Power-saving safety switch has no indicator light, and shortcoming such as need two independent switches to come the startup of control circuit and to cut-off, very inconvenient during use, and the delayed startup switch of this switch is made difficulty, cost is high, is unfavorable for applying.

The purpose of this utility model is to invent and a kind ofly can overcomes above-mentioned switch shortcoming, only just can reach easy to use, the stay-supported Power-saving safety switch that making is simple, with low cost of startup and breaking circuit with a pulling switch.

The utility model is to constitute like this: by shell 1, relay J ₁, pulling switch K ₁, two indicator light D ₁, D ₂, two resistance R ₁, R ₂Form R with fuse R ₁, R ₂An end and J ₁An end of pull-in winding insert zero-power line, R jointly ₁, R ₂The other end respectively with indicator light D ₁, D ₂An end join, at indicator light D ₁The other end and the other end of pull-in winding between string pulling switch K is arranged ₁Two contact K _1-1And K _1-2, K _1-1And D ₁Tie point be power input a, J ₁Normally opened contact J _1-1With K _1-1Parallel connection, J ₁Another normally opened contact J _1-2Be connected on input a and indicator light D ₂And between the contact that fuse R joins, the other end of R is output c, all elements all are installed in the shell 1, two indicator lamp holes are arranged on the surface of shell 1 and fuse R is housed, pulling switch K has been contained in the same rotating shaft having increased a contact flat spring 4 and one three toe joint contact, 5, three toe joint contacts 5 ratchet 3 with the general lighting pulling switch on the basis of general lighting pulling switch.

Adopt above technical scheme, realized with of startup and the shutoff of a pulling switch, thereby also just realized the purpose of this utility model with regard to the may command circuit.

Accompanying drawing 1 is that schematic appearance of the present utility model, accompanying drawing 2 are that circuit theory schematic diagram of the present utility model, accompanying drawing 3 are that pulling switch ratchet assembling assumption diagram of the present utility model, accompanying drawing 4 are vertical views of ratchet assembling assumption diagram, accompanying drawing 5 is front views of three toe joint contacts, and accompanying drawing 6 is three toe joint contact end views.

Embodiment of the present utility model: relay J in the present embodiment ₁Model be J16A, R ₁, R ₂Be the resistance of 170K Ω, R is the 10A fuse cutout, D ₁Be red neon tube, D ₂Be green neon tube, by scheme noted earlier with element connect good after, the utility model input a, b are received on the AC power of 220V, c, d are output, if red led extinguishes, represent that promptly external power has a power failure, then red led is just luminous if electricity is arranged; If red led is bright, green indicating lamp does not work then illustrate that output does not have electricity output, as long as at this moment draw one or two pull-down line 2, green indicating lamp is bright, just can normal power supply.When needs cut off output electric, as long as draw a pull-down line 2 just can; At this moment green light is extinguished, when having a power failure and having forgotten power cutoff, at this moment because of relay J ₁Its normally opened contact of dead electricity J _1-1, J _1-2Disconnect, cut off power supply automatically.

Claims (2)

1, a kind of stay-supported Power-saving safety switch is by shell 1, relay J ₁, pulling switch K ₁, two indicator light D ₁, D ₂, two resistance R ₁, R ₂Form with fuse R, it is characterized in that: R ₁, R ₂An end and J ₁An end of pull-in winding insert zero-power line, R jointly ₁, R ₂The other end respectively with indicator light D ₁, D ₂An end join, at indicator light D ₁The other end and the other end of pull-in winding between string pulling switch K is arranged ₁Two contact K _1-1And K _1-2, K _1-1And D ₁Tie point be power input a, J ₁Normally opened contact J _1-1With K _1-1Parallel connection, J ₁Another normally opened contact J _1-2Be connected on input a and indicator light D ₂And between the contact that fuse R joins, the other end of R is output c, and all elements all are installed in the shell 1, two indicator lamp holes is arranged on the surface of shell 1 and fuse R is housed.

2, according to the described this stay-supported Power-saving safety switch of claim 1, it is characterized in that: pulling switch K ₁Be to be contained in the same rotating shaft having increased a contact flat spring 4 and one three toe joint contact, 5, three toe joint contacts 5 ratchet 3 on the basis of general lighting pulling switch with the general lighting pulling switch.

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