CN202329252U - Heating furnace - Google Patents

Abstract

The utility model discloses a heating furnace, which comprises a furnace door (1), a furnace body (2) and a resistance wire (3), wherein the furnace body (2) is provided with a travel switch (4), and the travel switch (4) is connected with the resistance wire (3) in series. The heating furnace is simple to operate, saves time and labor and consumes no electricity.

Description

A kind of heating furnace

Technical field

The utility model relates to the metal manufacture field, especially a kind of heating furnace.

Background technology

The industrial at present upward heating furnace of use comprises fire door, body of heater and resistance wire composition, and the control of this heating furnace separates with body of heater, and operating so not only wastes time and energy, and the time has been used length, meeting power consumption because circuit is long.

The utility model content

In order to overcome the deficiency of prior art, the utility model provides a kind of heating furnace, and it is simple to operate, and is time saving and energy saving, and not power consumption.

Its technical scheme of the utility model solution is in order to achieve the above object: a kind of heating furnace, comprise fire door, body of heater and resistance wire, and the one stroke switch is arranged on body of heater.

According to the embodiment of the utility model, said travel switch is located at the head end of fire door track.

According to the embodiment of the utility model, said travel switch is connected with resistance wire.

The beneficial effect of the utility model is: it is simple to operate, and is time saving and energy saving, and not power consumption.

Description of drawings

The utility model will explain through example and with reference to the mode of accompanying drawing, wherein:

Fig. 1 is the topology view of the utility model;

Fig. 2 is the control principle figure of the utility model;

Reference numeral is: 1 is fire door, and 2 is body of heater, and 3 is resistance wire, and 4 is travel switch, and 5 is the fire door track.

The specific embodiment

Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.

Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.

By Fig. 1, a kind of heating furnace shown in Figure 2, comprise fire door 1, body of heater 2 and resistance wire 3, one stroke switch 4 is arranged on body of heater 2, in use, earlier travel switch 4 is located at the head end of fire door track 5, again travel switch 4 is connected with resistance wire 3.When opening fire door 1, travel switch off resistance silk 3 is connected with power supply, and when closing fire door 1, travel switch 4 makes resistance wire 3 connect power supply, and it is comparatively convenient, both time saving and energy saving to control like this, and not power consumption.

The utility model is not limited to the aforesaid specific embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.

Claims (3)

1. a heating furnace comprises fire door (1), body of heater (2) and resistance wire (3), it is characterized in that: one stroke switch (4) is arranged on body of heater (2).

2. heating furnace according to claim 1 is characterized in that: travel switch (4) is located at the head end of fire door track (5).

3. heating furnace according to claim 1 is characterized in that: travel switch (4) is connected with resistance wire (3).

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