Patent Publication Number: US-2007099140-A1

Title: Stove suitable for various kinds of gas pressure

Description:
BACKGROUND OF THE INVENTION  
      1. Field of the Invention  
      The invention relates to a gas stove, in more details it means a stove which is suitable for various kinds of gas pressure.  
      2. Description of the Related Art  
      As shown in  FIG. 1 , prior high-pressure gas oven  1  in general consists of a stove embodiment  2  and a stove head  3 . Stove head  3  is set up and connected with a pressure control valve (not shown on the drawing) of air outlet end of a gas tank. When it is being used, open the gas tank, adjust the outlet pressure of the pressure control valve and use a match or a lighting stick to light the stove head to make it burning and bake the food.  
      The above-mentioned high-pressure gas oven equipment need to be used a match or a lighting stick to light the stove head, but the way of lighting is a little inconvenient. Moreover, medium and high pressure gas over is not equipped with a temperature sensor, and the design of an automatic fire extinguishing. Once the burning temperature of the stove head is too high and cannot decrease the temperature by an automatic fire extinguishing, there will be a possible danger to be happened in use.  
      Next, prior structure of the gas stove for family or business use generally consists of components such as a shell, several stove heads, and a gas switch. The gas switch is set up on the surface of the shell and connected with the stove head so as to make it move and flow the control gas into the stove head. When in use, turn the knob of the gas switch to make the gas flow into the stove head and light the stove. As usual, although the degree of the fire of the gas stove can be controlled and adjusted by the gas switch. Nevertheless, limited by the types of a gas switch (low, medium or high pressure gas switch), the degree of the stove fire has its maximum. In order to generate a big fire to be applied for fast frying and boiling food, the gas stove for business use has to adopt a medium and high pressure gas stove and a gas switch which is able to control the medium and high pressure gas, while the gas stove for family use generally adopts low-pressure gas and a low-pressure gas switch. In other words, either the gas stove for family use or business use cannot adapt to the gas without a pressure set-up so it has lower flexibility.  
     SUMMARY OF THE INVENTION  
      The main object of the invention is to offer a stove suitable for various kinds of gas pressure to solve the prior defects. It is suitable for various kinds of gas pressure and needs not use a match or a lighting stick to light the fire so it is much more convenient.  
      Another object of the invention is to offer a stove suitable for various kinds of gas pressure as well as the function of being equipped with a temperature sensor and an automatic fire extinguishing.  
      Thus, in order to achieve the aforementioned objects, the invention offers a stove suitable for various kinds of gas pressure, its features are and comprising a control unit contains a valve base set up on the stove embodiment, the valve base having a hollow room and an air intake mouth connecting the hollow room, the air intake mouth is connected with a gas pipe so that the various kinds of pressure gas output from the pressure control valve can input into the room, a magnetic valve is set up in that room, consisting relatively to the air outlet mouth of the stove head air intake end to control if the gas in that room shall flow to the stove head by the air outlet mouth and for lighting to bum; an automatic lighting device is set up on the stove embodiment and electrically is connected with the magnetic valve so as to active the magnetic valve and light the stove. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
      Shown as follows, here are several better practical examples of the invention and in accommodation with figures to further describe in details as follows:  
       FIG. 1  is an operation schematic drawing of a usual high-pressure gas oven.  
       FIG. 2  is the 1st schematic drawing of a better practical example of the invention of the invention.  
       FIG. 3  is 3D combination drawing of the control unit of the 1st better practical example of the invention.  
       FIG. 4  is the 2nd schematic drawing of a better practical example of the invention of the invention.  
       FIG. 5  is the 3rd schematic drawing of a better practical example of the invention s of the invention.  
       FIG. 6  is the 4th schematic drawing of a better practical example of the invention.  
       FIG. 7  is the 5th schematic drawing of a better practical example of the invention. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION  
      First, as shown in  FIG. 1  to  FIG. 3 , a better practical example of the invention stove  10  is suitable for various kinds of gas pressure. It contains a stove embodiment  12  and a stove head  13  set up in the stove embodiment  12 . The stove embodiment  12  is a prior pattern of an oven. The stove head  13  is connected with a pressure control valve  16  of the air outlet mouth by a gas pipe  14  and set up at a gas tank  15 . The pressure control valve  16  can control the gas pressure output from the gas pipe  14 ; the aforementioned each component and composition is the same as the prior gas oven equipment and there is no need to state in details. The features of stove  10  of the invention are and contain:  
      A control unit  17  is consisted of a valve base  22  and a magnetic valve  24 . The valve base  22  is set up on the rack  25  of air intake mouth at the stove embodiment  12  relatively to the stove head  13 , having a embodiment  26 . On the embodiment  26  there indented with a hollow room  28  and at one end is penetrated with an air intake mouth  30  of a connecting room  28 . The air intake mouth  30  is connected with a gas pipe  14 . The magnetic valve  24  is a prior constant close-pattern magnetic valve placed inside the room  28 . Its air outlet mouth  32  is for a gas nozzle  34  to be placed so that the gas can be injected in the stove head  13  by the gas nozzle  34 .  
      An automatic lighting device  18  is a prior continual electric lighting device set up on the rack  25  and electrically connected with the magnetic valve  24 . Its lighting stick  35  is set up by the stove head  13  so as to activate the magnetic valve  24  to work and light the stove.  
      In addition, the stove  10  further contains a temperature control device  19 , including electrically connecting with a temperature set-up device  36  and a temperature sensor  38 . The temperature set-up device  36  is set up on the rack  25  and electrically connected with an automatic lighting device  18  so as to be set and activate the temperature value of the automatic lighting device  18  to work. The temperature sensor  38  is set up by the stove head  13  so to sensor the burning temperature of the fire of the stove head  13  and send the signal back to the temperature set-up device  36 .  
      Consequently, the methods of using of the stove  10  of the invention are as follows:  
      When the user wants to light the stove head  13 , he has to turn on the gas tank  15  and adjust the pressure control valve  16  to the expected pressure. The high-pressure gas can be flowed into the room  28  and magnetic valve  24  by the gas pipe  14  and then press the button  39  on the automatic lighting device  18 . Thus the magnetic valve  24  shall be driven and opened by the automatic lighting device  18  so that the gas is able to flow to the stove head  13  and to be lighted by the electric arc generated by the lighting stick  35 .  
      Next, if the user wants to avoid the burning temperature of the stove head  13  from being too high and lead to a dangerous situation, before he lights the stove head  13  or the stove head  13  burns, he can use the temperature set-up device  36  to set up a proper temperature. In this way, when the burning temperature of the stove head  13  detected by the temperature sensor  38  exceeds the set-up value the temperature set-up device  36  shall immediately send an electrical signal to the automatic lighting device  18  so that the automatic lighting device  18  shall send out a signal to stop the magnetic valve  24  and magnetic valve  24  shall be back to a close condition so that the gas shall no longer flow to the stove head  13  for burning.  
      Next, as shown in  FIG. 4 , the stove  40  is another better practical example of the invention. Its structure differs from that of the above stove  10  is: the stove embodiment  42  is a prior type of a gas stove embodiment. Its button  44  of the automatic lighting device and the button  46  of the temperature set-up device are set up on the cover of the stove embodiment  42 . Thus, the ways of use of the stove  40  are stated as above. The user merely needs to press the button  44  to start the automatic lighting device and light the stove. In comparison with the prior gas stove&#39;s way of turning knob of the gas switch to start the stove to light the fire, the way of using the stove  40  is obviously more convenient. Moreover, whatever kind of gas pressure of the stove  40  (low, medium or high pressure), the stove  40  can be used according to the above way of operation to control the gas to provide the stove head with burning and further generate different degrees of burning of the stove fire (the bigger the gas pressure is the fire of the stove is stronger), In comparison with the prior gas stove limited by the gas pressure, the types of gas switch (low, medium or high pressure gas switch), the usages of the stove  40  are obviously wider and with more practical value.  
      As further shown in  FIG. 5 , stove  50  is another better practical example of the invention. Its structure is generally the same as the stove  40 . The difference is: it further contains a pressure control valve  52  and set up at the out part of the stove embodiment  54  and connected with the valve base (not shown in the drawing). In this way, the pressure control valve  52  can control the gas pressure of the magnetic valve that enters the valve base.  
      As shown in  FIG. 6 , stove  60  is another better practical example of the invention. Its structure is the same as the stove  10 . The difference is: by the stove head  63  of the stove embodiment  62  there is set up with a prior empty-burning sensor device  64 . The empty-burning sensor device  64  is electrically connected with the automatic lighting device  65 . Its sensor end  66  can flexibly be connected at the bottom of a pot  67  on the stove embodiment  62 . In this way, when the liquid in the pot  67  is emptily burned into a dry condition without care, the double metal in the sensor end  66  shall be transformed by the heat and form a broken circuit condition so as to break the circuit of the automatic lighting device  65  and to stop the magnetic valve  68  from working and thus the gas shall not flow to the stove head  63  for burning and the fire will be extinguished so as to maintain the safety in using a stove.  
      As shown in  FIG. 7 , stove  70  is another better practical example of the invention. The magnetic valve  74  on the valve base  72  valve  74  combines a pressure control valve  76  and is set up in the stove embodiment  78 . Thus, the pressure control valve  76  can be used to control the gas pressure control into the valve base  72 .  
      Known from the above, when the design of a control unit the stove of the invention as the mechanism of gas control applies to a stove, there is no need to use a match or a lighting stick to light the fire and it is equipped with functions of a temperature sensor and an automatic fire extinguishing. And when the stove applied to a gas stove. The way of lighting is more convenient, besides it is suitable for various kinds of gas pressure. It usages are wider and more practical than the prior gas stove.