CN104153680B - A kind of rack rotates skylight - Google Patents

Abstract

The invention discloses a kind of rack and rotate skylight, comprise junction plate, top board, window frame and electromagnetic lock, described junction plate is fixedly connected with window frame, shape and the size of described top board match with window frame, top board is positioned at window frame, and the two ends of top board are movably fixed on window frame by rotating shaft, top board is divided into unequal two parts of weight by the line of the rotating shaft at top board two ends, and described electromagnetic lock is fixed on window frame; Also comprise electromagnetic lock control circuit, described electromagnetic lock control circuit comprises power Vcc, slide rheostat Rp, resistance R1, resistance R2, resistance R3, resistance R4, Smoke Sensor W and comparator U1.The present invention adopts said structure, and can guarantee that rack keeps certain tightness when normal work, can realize the automatic unlatching of enclosure top under fire fighting state, fast and easy is put out a fire timely simultaneously.

Description

A kind of rack rotates skylight

Technical field

The present invention relates to the safety fire fighting field of rack, be specifically related to a kind of rack and rotate skylight.

Background technology

Rack is used to the object depositing computer and related control device, and general cold-rolled steel sheet or the alloy of adopting makes, and rack can provide the protection to storage equipment, shield electromagnetic interference, in order, fitly alignment apparatus, and service equipment after convenient.Current rack is in relatively airtight state, if line short appears in the equipment such as the computer in rack or bad problem of dispelling the heat, easily make in rack on fire, if now put out a fire not in time, the serious damage of the equipment such as computer will inevitably be caused, or even bring security incident, and general rack only has a cabinet door, this cabinet door is mainly used for moving in and out of equipment, therefore, when really running into fire, there is larger problem in current rack, is unfavorable for timely fire extinguishing.

Summary of the invention

The invention provides a kind of rack and rotate skylight, solve current rack run into inner on fire time, fire extinguishing cannot be realized in time, thus bring the problem of massive losses.

The present invention for achieving the above object, realize by the following technical solutions: a kind of rack rotates skylight, comprise junction plate, top board, window frame and electromagnetic lock, described junction plate is fixedly connected with window frame, shape and the size of described top board match with window frame, and top board is positioned at window frame, and the two ends of top board are movably fixed on window frame by rotating shaft, top board is divided into unequal two parts of weight by the line of the rotating shaft at top board two ends, and described electromagnetic lock is fixed on window frame;

Also comprise electromagnetic lock control circuit, described electromagnetic lock control circuit comprises power Vcc, slide rheostat Rp, resistance R1, resistance R2, resistance R3, resistance R4, Smoke Sensor W and comparator U1, the one termination power Vcc of described slide rheostat Rp, the in-phase input end of another termination comparator U1; Power Vcc is connect, one end of connecting resistance R3 after two pin B short circuits of Smoke Sensor W, the other end ground connection of resistance R3 after two pin A short circuits of described Smoke Sensor W; The one termination power Vcc of the heating wire H of described Smoke Sensor W, ground connection after the other end series resistor R1 of heating wire H; The inverting input of another termination comparator U1 of the pin B of the one termination Smoke Sensor W of described resistance R2, resistance R2; The in-phase input end of the one termination comparator U1 of described resistance R4, the other end ground connection of resistance R4; The positive supply termination power Vcc of described comparator U1, the negative power end ground connection of comparator U1; The power input of described electromagnetic lock is connected with the output end vo of comparator U1.

This programme mainly comprises the mechanical part and control circuit part that rotate skylight, for mechanical part, owing to rotation skylight will be arranged on the top of rack, the top of rack must be provided with and rotate the much the same opening of skylight size before installation rotates skylight, after rotation skylight being arranged on enclosure top by junction plate, interior of equipment cabinet realizes isolating with the connected sum of space outerpace by rotating skylight, when top board is in level, rack is in sealing state, when top board is in vertical state, skylight is opened, outside fire-suppressant gas can directly be entered in rack by skylight fast, improve fire-fighting efficiency, control circuit is for realizing the intelligent opening rotating skylight, and under normal circumstances, the equipment in rack is in normal operating conditions, and the strong magnetic force of the charged generation of electromagnetic lock, holds top board, and makes top board be in level, and rack is sealed, and when in rack once occur fire, smoldering, Smoke Sensor conducting, and make electromagnetic lock power-off, top board, when losing electromagnetic lock absorption affinity, is opened under the effect of self gravitation, now can be injected in rack by the skylight of opening by fire-suppressant gas, realize putting out a fire fast, timely, after dangerous releasing, can manually be resetted by top board, magnetic-adsorption top board brought again by electromagnetic lock.

Further, preferably, described top board is square structure, window frame is made up of A, B, C, D tetra-limits, the two ends of top board are separately fixed on A limit and C limit, and described electromagnetic lock is fixed on B limit, and described rotating shaft is greater than the distance of rotating shaft to D limit to the distance on B limit.

Further, preferably, described electromagnetic lock is fixed on the midpoint on B limit.

Further, preferably, the shape of described top board is circular, the annular matched with top board sized by window frame.

The present invention compared with prior art, have the following advantages and beneficial effect: the present invention is by improving existing rack, arrange at the top of existing rack and rotate skylight, the opening and closing of enclosure top is realized, meanwhile, by design con-trol circuit by rotating skylight, when rack breaking out of fire, the intelligent opening rotating skylight can be realized under the effect of Smoke Sensor, facilitate fire-suppressant gas directly to enter in rack from skylight, realize putting out a fire fast, timely; In addition, in normal operation, top board adsorbs by electromagnetic lock, ensure that the seal of rack.

Accompanying drawing explanation

Fig. 1 rotates structural representation when skylight is in closedown;

Fig. 2 is the structural representation that rotation skylight is in when opening;

Fig. 3 is the control circuit figure of electromagnetic lock.

The name that in accompanying drawing, Reference numeral is corresponding is called: 1, junction plate, 2, top board, 3, window frame, 4, electromagnetic lock, 5, rotating shaft.

Detailed description of the invention

Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.

Embodiment:

As Fig. 1, Fig. 2, shown in Fig. 3, a kind of rack described in the present embodiment rotates skylight, comprise mechanical structure portion and control circuit part, mechanical structure portion comprises junction plate 1, top board 2, window frame 3 and electromagnetic lock 4, junction plate 1 is fixedly connected with window frame 3, by junction plate 1, whole rotation skylight is fixed on enclosure top, and make rotation skylight realize the unlatching of enclosure top, the concrete top board 2 that mainly leans on realizes, the shape of top board 2 and size match with window frame 3, top board 2 is positioned at window frame 3, and the two ends of top board 2 are movably fixed on window frame 3 by rotating shaft 5, top board 2 is divided into unequal two parts of weight by the line of the rotating shaft 5 at top board 2 two ends, electromagnetic lock 4 is fixed on window frame 3, because rotating shaft 5 is not the equilbrium position being positioned at top board 2, therefore, top board 2 is in unbalance state, top board 2 adsorbs by electromagnetic lock 4, namely top board 2 is in level under the effect of electromagnetic lock 4, and in this condition by close, make the seal that rack keeps certain, and when after electromagnetic lock 4 power-off, top board 2 loses the absorption affinity of electromagnetic lock 4 to it, under the effect of unbalance and gravity, top board becomes vertical state from level gradually, skylight is opened, and then fire-suppressant gas can be facilitated to enter into fast in rack.

Particularly, the electromagnetic lock control circuit of the present embodiment comprises power Vcc, slide rheostat Rp, resistance R1, resistance R2, resistance R3, resistance R4, Smoke Sensor W and comparator U1, the one termination power Vcc of slide rheostat Rp, the in-phase input end of another termination comparator U1; Power Vcc is connect, one end of connecting resistance R3 after two pin B short circuits of Smoke Sensor W, the other end ground connection of resistance R3 after two pin A short circuits of Smoke Sensor W; The one termination power Vcc of the heating wire H of Smoke Sensor W, ground connection after the other end series resistor R1 of heating wire H; The inverting input of another termination comparator U1 of the pin B of the one termination Smoke Sensor W of resistance R2, resistance R2; The in-phase input end of the one termination comparator U1 of resistance R4, the other end ground connection of resistance R4; The positive supply termination power Vcc of comparator U1, the negative power end ground connection of comparator U1; The power input of electromagnetic lock 4 is connected with the output end vo of comparator U1.

The course of work of the electromagnetic lock control circuit in the present embodiment is set forth below in conjunction with concrete example, Smoke Sensor is prior art, its concrete structure and operating principle are known for a person skilled in the art and are known, general introduction is done at this, Smoke Sensor has 6 pins, the input/output terminal of two pin A, two pin B and heater strip or heater respectively, heater provides necessary condition of work for gas sensitive element device, and two pin A and two pin B are short circuits respectively.Model or the Selecting parameter of relevant components and parts are as follows:

Power Vcc: 5V;

Slide rheostat Rp: maximum value 10K Ω;

Resistance R1:10K Ω, resistance R2:10K Ω, resistance R3:5.1K Ω, resistance R4:5.1K Ω;

Smoke Sensor W:QM-N10;

Comparator U1:LM324.

The course of work of the electromagnetic lock control circuit of the present embodiment: regulate slide rheostat Rp, make its resistance equal with R4, be 5.1K Ω, when the equipment in rack normally works (in rack non smoke), the non-conducting of Smoke Sensor W, now, the voltage of the in-phase input end of comparator U1 is about 2.5V, and the anti-phase input terminal voltage of comparator U1 is the non-conducting of 0(Smoke Sensor), comparator U1 exports high level, i.e. 5V, and this 5V voltage driven electromagnetic lock works, make it be held by top board, rack is in air-tight state, when breaking out of fire in rack (having smog in rack), Smoke Sensor W conducting, 5V voltage is added to the inverting input of comparator U1 through resistance R2, namely the voltage of inverting input is about 5V, and the in-phase input end voltage of comparator U1 is the dividing potential drop of slide rheostat Rp and resistance R4, namely the voltage of in-phase input end is about 2.5V, now, the anti-phase input terminal voltage of comparator U1 is higher than in-phase input end voltage, comparator U1 output low level, namely output voltage is 0V, electromagnetic lock power-off does not work, top board 2 is after the absorption affinity losing electromagnetic lock 4, open under the effect of self gravitation, thus facilitate fire-suppressant gas timely, enter into rapidly in rack.

As preferably, top board 2 is defined as square structure by the present embodiment, window frame 3 is made up of A, B, C, D tetra-limits, the two ends of top board 2 are separately fixed on A limit and C limit, and electromagnetic lock 4 is fixed on B limit, and rotating shaft 5 is greater than the distance of rotating shaft 5 to D limit to the distance on B limit, thus guarantee that top board 2 is not when being in imbalance state by when external force, when electromagnetic lock 4 does not work, top board 2 can rely on self gravitation and open, and facilitates fire-suppressant gas to enter rack.In addition, the position of electromagnetic lock 4 does not have specific requirement, top board 2 can be made to keep level as long as meet, but in order to make top board 2 and electromagnetic lock 4 keep a preferably contact condition, extend the application life of electromagnetic lock 4, electromagnetic lock 4 is preferably fixed on the midpoint on B limit by the present embodiment.

In addition, the structure of top board 2 and window frame 3 can also be other, such as circular, fan-shaped, semicircle, or even other polymorphic structure, as long as meet " window frame 3 seals by top board 2 under level; and top board 2 makes skylight open under vertical state, and top board 2 can rely on self gravitation automatically to open ".

The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.

Claims (4)

1. a rack rotates skylight, it is characterized in that: comprise junction plate (1), top board (2), window frame (3) and electromagnetic lock (4), described junction plate (1) is fixedly connected with window frame (3), the shape of described top board (2) and size match with window frame (3), top board (2) is positioned at window frame (3), and the two ends of top board (2) are movably fixed on window frame (3) by rotating shaft (5), top board (2) is divided into unequal two parts of weight by the line of the rotating shaft (5) at top board (2) two ends, and described electromagnetic lock (4) is fixed on window frame (3);

Also comprise electromagnetic lock control circuit, described electromagnetic lock control circuit comprises power Vcc, slide rheostat Rp, resistance R1, resistance R2, resistance R3, resistance R4, Smoke Sensor W and comparator U1, the one termination power Vcc of described slide rheostat Rp, the in-phase input end of another termination comparator U1; Power Vcc is connect, one end of connecting resistance R3 after two pin B short circuits of Smoke Sensor W, the other end ground connection of resistance R3 after two pin A short circuits of described Smoke Sensor W; The one termination power Vcc of the heating wire H of described Smoke Sensor W, ground connection after the other end series resistor R1 of heating wire H; The inverting input of another termination comparator U1 of the pin B of the one termination Smoke Sensor W of described resistance R2, resistance R2; The in-phase input end of the one termination comparator U1 of described resistance R4, the other end ground connection of resistance R4; The positive supply termination power Vcc of described comparator U1, the negative power end ground connection of comparator U1; The power input of described electromagnetic lock (4) is connected with the output end vo of comparator U1.

2. a kind of rack according to claim 1 rotates skylight, it is characterized in that: described top board (2) is square structure, window frame (3) is made up of A, B, C, D tetra-limits, the two ends of top board (2) are separately fixed on A limit and C limit, described electromagnetic lock (4) is fixed on B limit, and described rotating shaft (5) is greater than the distance of rotating shaft (5) to D limit to the distance on B limit.

3. a kind of rack according to claim 2 rotates skylight, it is characterized in that: described electromagnetic lock (4) is fixed on the midpoint on B limit.

4. a kind of rack according to claim 1 rotates skylight, it is characterized in that: the shape of described top board (2) is circle, the annular matched with top board sized by window frame (3).