Intelligent commercial gas stove

Abstract

The present invention discloses an intelligent commercial gas stove, comprising a stove body, a furnace arranged on the stove body, and a burner assembly arranged in the furnace, wherein the burner assembly comprises a burner arranged in the furnace, and further comprises a stove integrated intelligent control system connected to the burner assembly, wherein the stove integrated intelligent control system comprises a variable frequency fan, a gas proportional valve group, a venturi premixer, an igniter, an intelligent controller and a constant open flame gas solenoid valve arranged in a protective box. In the present invention, the switching between the constant open flame and the main fire is realized by only one variable frequency fan, the constant open flame is ignited and the main fire is extinguished in the standby state, the constant open flame gas valve is opened and the main fire gas valve is in a closed state, the variable frequency fan supplies the air required for the constant open flame combustion, the firepower of the constant open flame increases or decreases synchronously with the main fire, the stability of the constant open flame can be effectively guaranteed, and the combustion of the main fire is not affected, and since only one variable frequency fan is used, the failure rate of the equipment is lower and the reliability is stronger.

Description

Technical Field

[0001] The invention relates to the technical field of gas burners, and in particular to an intelligent commercial gas stove. Background Art

[0002] At present, commercial gas stoves among gas burners are gas stoves used in commercial properties, such as hotel kitchens, restaurant kitchens, and restaurant kitchens.

[0003] In recent years, some commercial gas stoves with electronic proportional adjustment have been widely used. However, these commercial gas stoves with electronic proportional adjustment usually have the following problems: First, two fans are usually required to provide air supply for the constant open flame and the main fire respectively, which cannot effectively guarantee the stability of the constant open flame and is easy to affect the combustion of the main fire. In addition, the failure rate of the equipment using two fans is higher and the reliability is lower. Second, when adjusting the firepower of the gas stove, the chef usually controls the firepower control gear on the gas stove. However, at present, when the chef uses the gas stove, he basically always holds the spoon with his hand and holds the pot ears with his back hand to pull the pot and stir the pot to start cooking. This single gas stove adjustment and control method often requires the chef to put down the frying utensils or leave the pot to operate, which has certain limitations. To this end, we propose an intelligent commercial gas stove. Summary of the invention

[0004] The object of the present invention is to provide an intelligent commercial gas stove to solve the problem mentioned in the above background technology that the existing commercial gas stoves usually require two fans to provide air supply for the combustion of the permanent flame and the main fire respectively, which cannot effectively guarantee the stability of the permanent flame and is easy to affect the combustion of the main fire, and the use of two fan equipment has a higher failure rate and lower reliability.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent commercial gas stove, comprising a stove body, a furnace arranged on the stove body, and a burner assembly arranged in the furnace, wherein the burner assembly comprises a burner arranged in the furnace, and further comprises a stove integrated intelligent control system connected to the burner assembly, wherein the stove integrated intelligent control system comprises a variable frequency fan, a gas proportional valve group, a venturi premixer, an igniter, an intelligent controller and a constant open flame gas solenoid valve arranged in a protective box;

[0007] Among them, there is one variable frequency fan, and the gas proportional valve group and the venturi premixer are installed at the air inlet of the variable frequency fan in sequence. The gas proportional valve group is arranged on the gas supply pipeline, and the gas supply pipeline is connected with a constantly open flame gas pipe, and the constantly open flame gas pipe is provided with a constantly open flame gas solenoid valve, and the outlet of the constantly open flame gas solenoid valve is connected to the variable frequency fan outlet through a pipeline and is connected to the burner constantly open flame after merging with the gas through a pipeline, the igniter is used to ignite the constantly open flame, and the intelligent controller is used to control the variable frequency fan, the igniter and the constantly open flame gas solenoid valve.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] In the present invention, only one variable frequency fan is used to realize the switching between the permanent open flame and the main fire. In the standby state, the permanent open flame is on and the main fire is off, the permanent open flame gas valve is open and the main fire gas valve is in a closed state, and the variable frequency fan supplies air required for the permanent open flame combustion. During the ignition process, the permanent open flame gas valve is closed and the main fire gas valve is opened. Both the permanent open flame and the main fire are supplied with premixed gas that is completely mixed with air and wind. The firepower of the permanent open flame increases or decreases synchronously with the main fire. Unlike previous commercial gas cookers, the firepower of the permanent open flame is fixed regardless of the firepower of the main fire during the ignition process of the main fire. This can effectively ensure the stability of the permanent open flame and does not affect the main fire. The invention overcomes the problems existing in the conventional commercial gas stoves that the power of the ever-open flame remains unchanged and the power of the ever-open flame needs to be precisely adjusted. If the power is too small, it is easily extinguished by the main fire, and if the power is too large, the ion needle cannot detect the flame to generate flameout protection, and the main fire is interfered with.

[0010] The fire control mechanism of the present invention comprises an integrated control handle and an integrated control cooking frying tool, through which the fire adjustment and state conversion can be performed quickly and accurately, and the integrated control cooking frying tool is used by the chef, and the chef does not need to put down the frying tool or leave the pot to perform operations such as fire adjustment of the gas stove, which effectively frees the hands of the operator, improves the cooking speed and cooking quality, and is more convenient to use;

[0011] The integrated control cooking frying pan in the present invention protects the fire power regulating module for regulating the gas stove through the protective cover, thereby extending the service life of the fire power regulating module. When in use, the protective cover can be fixed by a fixing piece so that it no longer blocks the fire power regulating module, thereby not affecting the chef's one-handed operation. In addition, a hanging portion, a protrusion, a movable frame, a push rod and other structures are provided to cooperate with the hanger. When the chef stops working and places the frying pan on the hanger, the protective cover can automatically close to protect the fire power regulating module, thereby avoiding the fire power regulating module from being contaminated and damaged due to the chef forgetting to cover the protective cover. In addition, when the protective cover blocks the fire power regulating module in the closed groove, the closing button in the fire power regulating module can be pressed to stop the gas stove from working, thereby preventing the chef from forgetting to turn off the electrical components in the gas stove and causing safety accidents. Furthermore, during the movement of the protective cover, the control button on the fire power regulating module can be rubbed by a cleaning pad to clean the control button, thereby maintaining its good operating performance and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of the gas stove structure of the present invention;

[0013] Figure 2 It is a partial structural cross-sectional view of the gas stove of the present invention;

[0014] Figure 3 This is a schematic diagram of the structure of the stove integrated intelligent control system of the present invention;

[0015] Figure 4 For the present invention Figure 3 Schematic diagram of structural explosion;

[0016] Figure 5 It is a schematic diagram of the structure of the integrated control handle of the present invention;

[0017] Figure 6 For the present invention Figure 5 The local structural cross-sectional view in;

[0018] Figure 7 For the present invention Figure 6 Schematic diagram of the local structure in;

[0019] Figure 8 This is a schematic diagram of the structure of the integrated control cooking frying tool of the present invention;

[0020] Fig. 9 It is a partial structural cross-sectional view of the integrated control cooking and frying tool of the present invention;

[0021] Fig.10 This is a schematic diagram of the protective cover structure of the integrated control cooking frying utensils of the present invention;

[0022] Fig.11This is a schematic diagram of the structure of a firepower adjustment module in an integrated control cooking frying utensil of the present invention;

[0023] Fig.12 For the present invention Fig. 9 A magnified view of the structure A;

[0024] Fig.13 For the present invention Fig. 9 A magnified view of the structure B in FIG.

[0025] Fig.14 It is a corresponding schematic diagram of magnetic block 1 and magnetic block 2 of the present invention.

[0026] In the figure: 100, stove body; 200, stove integrated intelligent control system; 201, protection box; 202, variable frequency fan; 203, gas proportional valve group; 204, igniter; 205, intelligent controller; 206, constant open flame gas solenoid valve; 300, furnace; 400, burner assembly; 500, combustion chamber; 600, integrated control handle; 601, mounting plate; 602, handle rotation axis; 603, base; 604, magnet; 605, rotating handle; 606, control module; 700, integrated control cooking frying utensils; 701, connecting rod; 702, head; 703, handle; 704, Gap; 705, fire adjustment module; 706, protective cover; 707, elastic part 1; 708, toggle block; 709, movable plate; 710, lever; 711, pull rod; 712, closing button; 713, cleaning pad; 714, hanging part; 715, hanging hole; 716, counterweight block; 717, elastic part 2; 718, movable frame; 719, bump; 720, push rod; 721, pressing ball; 722, top plate; 723, magnetic block 1; 724, magnetic isolation plate; 725, magnetic block 2; 726, contact rod; 727, liquid roller; 728, jack; 800, display screen; 900, bracket. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Please see attached Figure 1 -Attached Figure 4 , a smart commercial gas stove, comprising a stove body 100, a furnace 300 arranged on the stove body 100, a burner assembly 400 arranged in the furnace 300, and the burner assembly 400 comprising a burner head arranged in the furnace 300;

[0029] The stove body 100 is composed of necessary parts such as a frame, a table, a turret, a faucet, a drain and a downpipe to complete cooking needs;

[0030] Also included is a stove integrated intelligent control system 200 connected to the burner assembly 400;

[0031] The stove integrated intelligent control system 200 includes a variable frequency fan 202, a gas proportional valve group 203, a venturi premixer, an igniter 204, an intelligent controller 205 and a constant open flame gas solenoid valve 206, which are arranged in a protective box 201;

[0032] There is one variable frequency fan 202, a gas proportional valve group 203 and a venturi premixer are sequentially installed at the air inlet of the variable frequency fan 202, the gas proportional valve group 203 is arranged on the gas supply pipeline, a pressure stabilizer and a pulse flow meter are sequentially arranged on the gas supply pipeline downstream of the gas proportional valve group 203, a gas pipe for constant open flame is connected to the gas supply pipeline between the pulse flow meter and the gas proportional valve group 203, a constant open flame gas pipe is installed on the constant open flame gas pipe, a constant open flame gas solenoid valve 206 is installed on the constant open flame gas solenoid valve 206, a tee is installed at the outlet of the constant open flame gas solenoid valve 206, and one end of the tee is connected to the outlet of the variable frequency fan 202 through a pipeline, and after merging with the gas, it is connected to the burner constant open flame through a pipeline;

[0033] The above-mentioned gas proportional valve group 203 is composed of a solenoid valve and a diaphragm mechanical valve. The solenoid valve plays a switching role. When the gas reaches the diaphragm proportional valve through pressure balance pressure reduction, the pressure drops to zero with the ambient pressure difference; the outlet of the gas proportional valve enters the Venturi constriction laterally. When the variable frequency fan 202 is running, under the action of negative pressure differential, the air required for combustion is sucked in, the diaphragm of the diaphragm mechanical valve opens, and the gas is sucked in by the variable frequency fan 202 and mixed with the air at the Venturi constriction. The faster the speed of the variable frequency fan 202, the greater the negative pressure differential, and the more suction The more air and gas are drawn in, the more gas and air are drawn in from the Venturi, and then the impeller in the volute of the fan rotates at high speed to mix, and the mixed combustible gas is further formed in the continuous pipeline to reach the burner for ignition and combustion; the variable frequency fan 202 variable frequency speed regulation adopts digital control signal, and the fan speed can be precisely controlled to form different pressure differences at the inlet and outlet of the Venturi premixer, and then the air volume and air volume drawn in by the variable frequency fan 202 are synchronously controlled to meet the gas and air ratio under different heat loads, so as to achieve stable combustion state;

[0034] The igniter 204 is used to ignite the normally open flame, and the intelligent controller 205 is used to control the variable frequency fan 202, the igniter 204, the solenoid valve in the gas proportional valve group 203 and the normally open flame gas solenoid valve 206, so as to control the start and stop, ignition and firepower adjustment of the gas stove.

[0035] Preferably, the protective box 201 of this embodiment is provided with an air inlet hole, and the air inlet hole is equipped with filter cotton. The air required for combustion enters the protective box 201 through the filter cotton plate. The filter cotton plate is designed to be pull-out, which is convenient for disassembly, cleaning and replacement. Other parts of the protective box 201 are sealed to isolate the external air to prevent dust, debris, water vapor, oil and insects from entering the protective box 201. The protective box 201 is connected to the external electrical circuits and gas pipelines with quick connections to facilitate rapid overall replacement.

[0036] Preferably, the stove body 100 of the present embodiment is also provided with a display screen 800 electrically connected to the stove integrated intelligent control system 200. The display screen 800 is an LCD display screen, which is connected to the stove integrated intelligent control system 200 via a data cable. The display screen 800 can display the current working status of the stove, the firepower, the instantaneous flow rate, the usage time after this startup and the historical cumulative usage time, the gas usage and the cumulative gas usage during this startup, the waste heat recovery water temperature, the cumulative hot water / boiling water / steam production of waste heat recovery, the exhaust temperature of the stove, the fault alarm and the cause prompt. The display screen 800 also has a backlight panel, on which a number of lamp beads are installed, which cooperate with the color filter in the liquid crystal layer to form a screen with white and blue as the main tones to display various parameters and status. It is a conventional device in this field and will not be described in detail here.

[0037] Preferably, the gas stove of this embodiment further includes a waste heat recovery device, which can be installed on the flue of the stove body 100, and further absorbs the waste heat of the flue gas to produce steam or boiling water or hot water, which is provided to the stove itself or other occasions in the kitchen. The waste heat recovery device belongs to conventional equipment in the field and will not be described in detail here.

[0038] Preferably, the burner assembly 400 of the present embodiment also includes a combustion chamber 500 composed of a burner head and a furnace 300. The combustion chamber 500 and the pot form a combustion and heat absorption space. An ignition pin, a grounding pin and an ion flame pin are arranged inside the burner head. The ignition pin, the grounding pin and the ion pin are installed in the normally bright flame position. The ignition pin and the grounding pin circuits are respectively connected to the igniter. The grounding pin discharges the ignition residual electricity through the mains grounding loop. The ion pin circuit is connected to the intelligent controller, which determines the current operating status of the stove by collecting the ion current for safety protection. When the fire is started, various self-checks before ignition are performed according to the preset program of the intelligent controller 205. At the same time, the variable frequency fan 202 is started. After the furnace 300 is purged at the power frequency for a set time, the speed of the variable frequency fan 202 is changed to the ignition speed, and then the pulse discharge from the ignition needle to the grounding needle is performed. Then the constant open flame gas solenoid valve 206 on the constant open flame gas pipe is opened to ignite the constant open flame. At the same time as the ignition, the intelligent controller 205 detects whether the constant open flame is ignited through the ion needle. After confirming that the fire is ignited, the igniter 204 is stopped, and the stove is switched to standby or the firepower at the last power failure. Before detecting that the constant open flame has been ignited, the solenoid valve in the main fire gas proportional valve group 203 is in a closed state.

[0039] In the above, the main fire gas proportional valve group 203 keeps the offset pressure at zero, and compensates for the pressure fluctuation in the gas supply network, automatically adjusts to the same pressure as its environment, that is, the pressure difference with the surrounding environment is zero, and the pressure source of the gas proportional valve group 203 is the same as that of the variable frequency fan 202, so as to maintain a good complete combustion ratio unchanged. According to the rated heat load determined by the stove, the speed of the variable frequency fan 202 corresponding to the minimum fire and the rated heat load is adjusted, and the opening of the small fire adjustment knob and the large fire adjustment knob on the proportional valve is adjusted to adjust the gas flow to the corresponding value, and ensure a good combustion ratio under the minimum fire and rated load, thereby ensuring good combustion of any fire between the minimum fire and the rated heat load, wherein the minimum fire is about 25% of the rated heat load. During the operation of the stove, the speed of the variable frequency fan 202 is automatically adjusted by detecting the gas flow, and the flow is dynamically adjusted to the flow value corresponding to the rated heat load, so that the rated heat load is always kept at the original set value unchanged, and at the same time, the minimum fire power is ensured not to change. When the stove is started next time after power failure, the speed of the variable frequency fan 202 corresponding to the rated heat load before power failure is automatically executed and the speed of the variable frequency fan 202 is adjusted in real time around the gas flow under the rated heat load.

[0040] Preferably, the gas stove of this embodiment further comprises a fire control mechanism electrically connected to the intelligent controller 205, for example, by wireless communication;

[0041] The fire control mechanism includes an integrated control handle 600 disposed on the stove body 100 and an integrated control cooking tool 700 for the chef to hold and use.

[0042] Please refer to the attached Figure 5 -Attached Figure 7 As a preference, the integrated control handle 600 of this embodiment includes a mounting plate 601, a base 603 disposed on one side of the mounting plate 601, a handle rotating shaft 602 disposed on the mounting plate 601, a rotating handle 605 disposed at one end of the handle rotating shaft 602, and a control module 606 disposed on the base 603;

[0043] The other end of the handle rotating shaft 602 extends into the base 603 and is installed with a magnet 604 through a fixing plate. A full-angle magnetic control sensor for cooperating with the magnet 604 is provided in the base 603. The full-angle magnetic control sensor is electrically connected to the control module 606. The full-angle magnetic control sensor is a conventional device in the art, i.e., a magnetic angle sensor, which is used to detect the magnet 604 and then determine the rotation angle of the handle rotating shaft 602, and convert the rotation angle into an electrical signal. The control module 606 receives the electrical signal from the full-angle magnetic control sensor and sends a control signal to the intelligent controller 205, so that the intelligent controller 205 controls the corresponding electrical components to work;

[0044] The rotation angle of the rotating handle 605 is usually around 90°, and the rotation angle is counterclockwise to increase (by default, the frying pan is held in the right hand), that is, when the rotating handle 605 is at the right limit position of the horizontal position, the main fire is in an off state. When the rotating handle 605 is rotated counterclockwise to a certain angle with the horizontal, the minimum fire is triggered. At this time, the solenoid valve in the gas proportional valve group 203 is opened. As the rotation angle of the handle increases, the firepower also increases. When the maximum limit angle is reached, the firepower reaches the rated load. Between the minimum fire and the rated heat load, the chef rotates the rotating handle 605 to the appropriate position of firepower as needed;

[0045] Furthermore, a quick knee-top switch is provided on the outermost side of the handle rotating shaft 602, which triggers the spring contact sensor on the handle base by knee-top or hand-pressing, and quickly switches between the constant-light flame and the flame where the handle is located. Each time it is pressed, it switches from the current main flame to the constant-light flame, and then it is pressed again to switch from the constant-light flame to the original main flame. The quick knee-top switch is made of flexible material, and the middle part is transparent. At the same time, a lamp bead can be set. When the main flame is working, the control module 606 controls the lamp bead to light up, which is convenient for intuitively judging the current on / off state of the main flame.

[0046] Please refer to the attached Figure 8 -Attached Fig.14 As a preferred embodiment, the integrated control cooking tool 700 of this embodiment includes:

[0047] The connecting rod 701 has one end detachably connected to the head 702 and the other end connected to the handle 703. The connecting rod 701, the head 702 and the handle 703 can form a commonly used cooking tool such as a frying spoon or a spatula;

[0048] A notch 704 is provided on the handle portion 703 on one side facing the connecting rod portion 701, and a groove is provided on one side of the bottom wall of the notch 704. A firepower adjustment module 705 is installed in the groove. The firepower adjustment module 705 is wirelessly connected to the intelligent controller 205 and is powered by a micro high-performance battery. The firepower adjustment module 705 has control buttons, such as a firepower increase and decrease button and a main fire quick pause button. The chef can adjust the firepower and perform other operations by pressing the corresponding button with his fingers without putting down the integrated control cooking frying tool 700 while cooking.

[0049] The protective cover 706 is arranged in the notch 704 to close the groove notch and protect the internal firepower adjustment module 705. One end of the bottom of the protective cover 706 is slidably connected with the slide groove provided in the bottom wall of the notch 704 through a slider. The slider and the inner wall of one side of the slide groove are connected through an elastic member 707. The elastic member 707 is a spring. A toggle block 708 is provided on the top of the protective cover 706. Fig. 9 -Attached Fig.12 As shown in the figure, the chef holds the handle 703 and presses the toggle block 708 with his fingers to move the protective cover 706 toward the connecting rod 701, and then the fire power adjustment module 705 can be used; and,

[0050] The fixing member is provided at one end of the bottom of the protective cover 706 and is used to enter the insertion hole 728 provided on the bottom wall of the notch 704 to fix the protective cover 706 when the protective cover 706 and the groove are completely offset. Fig. 9 -Attached Fig.12 As shown, when the left side of the protective cover 706 contacts the left side wall of the notch 704, the fixing piece is inserted into the socket 728 and no longer blocks the groove. At this time, the user can operate the firepower adjustment module 705 in the groove without pressing the toggle block 708.

[0051] By setting up the protective cover 706, it is effective to prevent oil and the like from polluting the firepower regulating module 705, thereby achieving efficient protection of the firepower regulating module 705 and extending the service life of the firepower regulating module 705. When the chef is cooking normally, he can press the protective cover 706 to open it and fix it through the fixing parts, and cover the shielding groove with the palm of his hand. In this way, not only will oil and the like not affect the firepower regulating module 705 during cooking, but also will not affect the chef's one-handed operation of the firepower regulating module 705. When not cooking, the protective cover 706 can be closed to prevent the influence of external oil and the like on the firepower regulating module 705 during the storage period.

[0052] Preferably, the fixing member of this embodiment includes:

[0053] The movable plate 709 is movably disposed in a groove body opened at one end of the bottom of the protective cover 706. The groove body is specifically opened on the left side of the bottom of the movable plate 709. The movable plate 709 is connected to the inner wall of the top of the groove body through a spring;

[0054] The clamping rod 710 is matched with the insertion hole 728 and is disposed at the bottom of the movable plate 709, and a ball is embedded at the bottom end thereof to slide against the bottom wall of the notch 704 so that the protective cover 706 can move horizontally; and,

[0055] The pull rod 711 is disposed on the top of the movable plate 709 , and its top passes through the top of the protective cover 706 .

[0056] When the chef needs to close the protective cover 706 , he can pull the pull rod 711 to drive the movable plate 709 so that the locking rod 710 is disengaged upward from the insertion hole 728 , so that the protective cover 706 is reset to the closed groove under the action of the elastic member 1 707 .

[0057] Preferably, the integrated control cooking frying tool 700 of this embodiment further includes:

[0058] The movable frame 718 is slidably arranged in the cavity opened in the handle portion 703. An arc-shaped protrusion 719 is arranged at one end of the movable frame 718. A push rod 720 is movably arranged on one side of the protrusion 719. The push rod 720 is vertically slidably arranged in the cavity, and one end of the push rod 720 passes through the insertion hole 728, and the other end slides and abuts against the movable frame 718, and is driven to move upward by the protrusion 719. Specifically, when the push rod 720 is not in contact with the protrusion 719, its top end is flush with the bottom of the hole 728, and will not interfere with the entry of the card rod 710 into the insertion hole 728. A ball can be embedded at the bottom of the push rod 720 to contact the top of the movable frame 718 so as to move to the protrusion 719; a spring for driving the push rod 720 to return downward is arranged in the cavity, and the spring can be connected to the outer wall of the push rod 720 at one end and the inner wall of the cavity at the other end; and,

[0059] The hanging part 714 is arranged at one end of the handle part 703 away from the connecting rod part 701. The hanging part 714 is provided with a hanging hole 715. The hanging hole 715 is used to cooperate with the hanging rack 900 arranged on the stove body 100. The hanging rack 900 is used to hang the integrated control cooking frying tool 700 to a desired position. One side of the hanging part 714 passes through the handle part 703 through the connecting rod and is connected to the movable frame 718. One end of the movable frame 718 is connected to the inner wall of one side of the cavity through the elastic member 717. The elastic member 717 is used to drive the movable frame 718 to reset. When not in use, the chef can put the integrated control cooking frying tool 700 through the hanging hole 715. When the integrated control cooking frying utensils 700 are hung on the hanger 900, the connecting rod 701, the head 702, the handle 703 and other structures move downward relative to the hanging part 714 under the gravity, so that the movable frame 718 squeezes the elastic member 717 to move. If the chef forgets to manually close the protective cover 706, at this time, the movable frame 718 can move to drive the push rod 720 into the insertion hole 728 through the protrusion 719 to push the clamping rod 710 out of the insertion hole 728, so that the protective cover 706 automatically returns to the closed groove, effectively avoiding the fire power adjustment module 705 from being contaminated and damaged due to the chef forgetting to close the protective cover 706 during the placement of the integrated control cooking frying utensils 700.

[0060] Preferably, a counterweight block 716 is provided on the inner wall of the cavity in this embodiment. Through this arrangement, it is convenient to integrate and control the cooking utensils 700 when they are hung on the hanger 900, so that the connecting rod part 701, the head part 702, the handle part 703 and other structures can move downward relative to the hanging part 714 under the action of gravity.

[0061] Preferably, the control button of this embodiment includes a closing button 712 provided at one end of the top of the fire power adjustment module 705. The closing button 712 is used to control the electrical components in the stove integrated intelligent control system 200 to be turned off. For example, the closing button 712 controls the frequency conversion fan 202, the igniter 204, the constant open flame gas solenoid valve 206, and the solenoid valve in the gas proportional valve group 203 to be turned off or controls some of the electrical components to be turned off. The selection is made according to the actual situation and will not be described in detail here.

[0062] The protective cover 706 has a mounting groove at one end relative to the closing button 712. Fig.11As can be seen from the figure, the closing button 712 is at the right end of the top of the firepower adjustment module 705, and the assembly slot is opened at the right end of the protective cover 706; a top plate 722 is provided in the assembly slot, and a magnetic block 723 is embedded on the top plate 722. The bottom of the top plate 722 movably penetrates the inner wall of the assembly slot and rotates to be provided with a pressing ball 721 for pressing the closing button 712. The pressing ball 721 can be made of rubber material, which is convenient for the pressing ball 721 to press the closing button 712 and also convenient for the pressing ball 721 to press the closing button 712 one by one. As the protective cover 706 moves to above the closing button 712, the top inner wall of the assembly groove is provided with a second magnetic block 725 corresponding to the first magnetic block 723, and the second magnetic block 725 is used to drive the first magnetic block 723 to drive the top plate 722 downward. The first magnetic block 723 and the second magnetic block 725 are magnetic blocks of the same polarity. When the two are directly corresponding, the repulsive force is the largest, and the pressing ball 721 moves downward to the preset position to squeeze the closing button 712. The top plate 722 and the inner wall of the assembly groove are provided with a magnetic block 725 for driving the top plate 722 upward. A reset member for reset, which reset member, for example, includes a guide rod that penetrates the top plate 722 and whose two ends are respectively connected to the top and bottom inner walls of the assembly groove, and a spring that is sleeved on the outer wall of the guide rod, one end of which is connected to the top plate 722, and the other end of which is connected to the inner wall of one side of the assembly groove, and is used to drive the top plate 722 to drive the pressing ball 721 to reset when the magnetic block 1 723 and the magnetic block 2 725 are offset; a magnetic isolation plate 724 is slidably provided on one side of the top plate 722 for covering the top of the magnetic block 1 723, and the magnetic isolation plate 724 can be moved along the top plate 722 moves horizontally in the length direction, the magnetic isolation plate 724 is connected to one end of the top plate 722 by a spring, a contact plate is vertically provided on the top of the magnetic isolation plate 724, one side of the contact plate slides against a horizontally provided contact rod 726, the contact plate has a certain length, so that the top plate 722 will not be separated from the contact rod 726 during the up and down movement, the end of the contact rod 726 away from the contact plate is connected to the side wall of the notch 704, and the end close to the contact plate can be embedded with a ball to slide against the contact plate;

[0063] When one end of the protective cover 706 relative to the closing button 712 contacts the side wall of the notch 704, the magnetic isolation plate 724 is offset from the magnetic block 1 723. At this time, the top plate 722 gradually moves downward to a preset position under the action of the magnetic block 1 723 and the magnetic block 2 725. When the magnetic block 1 723 and the magnetic block 2 725 are exactly corresponding, the pressing ball 721 presses the closing button 712.

[0064] Specifically, when the protective cover 706 is not in contact with the contact rod 726, under the action of the magnetic isolation plate 724, the magnetic block 1 723 is not affected by the magnetic block 2 725, and the pressing ball 721 is in the assembly groove. When the protective cover 706 moves to gradually close the groove, the contact rod 726 contacts the contact plate and gradually pushes the contact plate during the movement of the protective cover 706 to make the magnetic isolation plate 724 move in the opposite direction of the movement of the protective cover 706, so that the magnetic block 1 723 gradually leaks out and corresponds to the magnetic block 2 725. At this time, the top plate 722 gradually drives the pressing ball 721 to move downward. When the right end of the protective cover 706 contacts the right side wall of the notch 704, the magnetic block 1 723 and the magnetic block 2 725 Completely corresponding, at this time the repulsive force is the largest, the pressing ball 721 presses the closing button 712, so that the electrical components in the gas stove stop working. According to the chef's working habit of keeping the cooking tools in hand during the actual cooking process, once the cooking tools are put down, it means that the fire can be turned off in most cases. Therefore, when the chef hangs the integrated control cooking frying tool 700 on the hanging rack 900 through the hanging hole 715, the unclosed protective cover 706 can be automatically closed and the gas stove can be automatically stopped, preventing the chef from forgetting to turn off the electrical components in the gas stove and causing safety accidents. At the same time, the user can also open the protective cover 706 and manually press the closing button 712 to control the start and stop of the gas stove;

[0065] On the other hand, under the action of the magnetic isolation plate 724, the contact plate and the spring and other structures, the protection box 201 is slowed down to a certain extent before closing, preventing the protection box 201 from causing damage (pinching) to the chef's hands when it is reset by the elastic member 707, thereby improving the comfort of use.

[0066] Preferably, a cleaning pad 713 for cleaning the control button is detachably provided at the bottom of the protective cover 706 of this embodiment. The cleaning pad 713 may be a sponge pad or the like. A liquid storage cavity for storing cleaning liquid is provided in the handle portion 703 and adjacent to the groove. A tube body is provided on one side of the liquid storage cavity to which cleaning liquid can be added. The tube body penetrates the outer wall of the handle portion 703, and a sealing plug can be screwed at the tube mouth. An upper liquid roller 727 is rotatably provided in the liquid storage cavity. The upper end of the upper liquid roller 727 movably penetrates the inner wall of the bottom of the movable penetration notch 704. When the protective cover 706 moves, the upper liquid roller 727 is driven by the friction of the cleaning pad 713 to rotate in the liquid storage cavity and apply the cleaning liquid in the liquid storage cavity to the cleaning pad 713.

[0067] In order to prevent the chef's hands from being stained with oil during operation, which may cause these pollutants to remain on the buttons when pressing the control buttons, the residual oil not only affects the aesthetics of the control buttons, but more importantly, may interfere with their normal functions. For this reason, the cleaning pad 713 is moistened during the movement of the protective cover 706. The cleaning pad 713 can rub the control buttons on the fire power adjustment module 705 during the resetting of the protective cover 706 to clean the control buttons and maintain their good operating performance and durability.

[0068] When the gas stove is in use, the speed of the variable frequency fan 202, the normally open flame gas solenoid valve 206, and the switch of the solenoid valve of the main fire gas proportional valve group 203 are combined to control various fire powers and stove use states. During the stove startup self-test process, the variable frequency fan 202 enters high-speed rotation for pre-purge; after pre-purge, the speed of the variable frequency fan 202 is adjusted to the normally open flame ignition speed, ignition and discharge, and then the normally open flame gas solenoid valve 206 is opened, and the gas of the normally open flame enters and is mixed with the combustion air from the outlet of the normally open flame gas solenoid valve 206 through the three-way supply to the ignition needle discharge position for ignition. After the normally open flame is ignited, the ignition and discharge stops. When the main fire is not turned on, it is always in the normally open flame ignition standby state; when the main fire is turned on, the main fire gas proportional valve group 203 is turned on. The solenoid valve of the valve group 203 is opened, and the frequency conversion fan 202 quickly adjusts the speed to the speed corresponding to the current integrated control handle 600 or the integrated control cooking frying tool 700 instruction, and the normally open flame gas solenoid valve 206 is closed after the normally open flame ignites the main fire, and the normally open flame gas supply is converted into mixed combustible gas from the frequency conversion fan 202; and when the main fire is turned off, the frequency conversion fan 202 quickly adjusts the current fan speed to the normally open flame speed, and synchronously the normally open flame gas solenoid valve 206 is opened first and then the solenoid valve of the gas proportional valve group 203 on the main fire is cut off.

[0069] Preferably, the stove integrated intelligent control system 200 of this embodiment is also provided with a gas-sensitive probe and a buzzer, which can be fixed on the protection box 201 or the stove near the gas pipeline. Once combustible gas is detected, the solenoid valve on the gas proportional valve group 203 and the normally open flame gas solenoid valve 206 will be immediately disconnected, and a gas leakage sound alarm will be issued. At the same time, a flashing gas leakage and an immediate troubleshooting prompt will be displayed on the display screen 800;

[0070] As a preference, the stove integrated intelligent control system 200 of this embodiment may also include a communication module, with a reserved remote transmission interface, to transmit data to a management platform, which automatically analyzes various data and checks the operation status of the stove, and issues various warnings and repair and maintenance suggestions. Users or managers can learn about the operation status of the equipment online through mobile phones or computer clients, and authorized managers can remotely intervene in and adjust the firepower of the equipment within their authority.

[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent commercial gas stove, comprising a stove body (100), a furnace (300) arranged on the stove body (100), and a burner assembly (400) arranged in the furnace (300), wherein the burner assembly (400) comprises a burner head arranged in the furnace (300), characterized in that: Also included is a stove integrated intelligent control system (200) connected to the burner assembly (400), the stove integrated intelligent control system (200) comprising a variable frequency fan (202) arranged in a protective box (201), a gas proportional valve group (203), a venturi premixer, an igniter (204), an intelligent controller (205) and a constant open flame gas solenoid valve (206); The gas proportional valve group (203) and the venturi premixer are sequentially installed at the air inlet of the variable frequency fan (202); the gas proportional valve group (203) is arranged on a gas supply pipeline; the gas supply pipeline is connected to a constantly open flame gas pipe; the constantly open flame gas pipe is provided with a constantly open flame gas solenoid valve (206); the outlet of the constantly open flame gas solenoid valve (206) is connected to the outlet of the variable frequency fan (202) through a pipeline and is connected to the burner constantly open flame through a pipeline after merging with the gas; the igniter (204) is used to ignite the constantly open flame; and the intelligent controller (205) is used to control the variable frequency fan (202), the igniter (204) and the constantly open flame gas solenoid valve (206); The gas stove also includes a fire control mechanism electrically connected to the intelligent controller (205); The fire control mechanism comprises an integrated control handle (600) arranged on the stove body (100), and an integrated control cooking tool (700) for the chef to hold and use; The integrated control cooking and frying tool (700) comprises: A connecting rod portion (701), one end of which is detachably connected to the head portion (702), and the other end of which is connected to the handle portion (703), the handle portion (703) being provided with a notch (704), a groove being provided on one side of the bottom wall of the notch (704), a firepower adjustment module (705) being installed in the groove, and a control button being provided on the firepower adjustment module (705); A protective cover (706) is arranged in the notch (704) for closing the groove notch. One end of the bottom of the protective cover (706) is slidably connected with a slide groove provided in the bottom wall of the notch (704) through a slider. The slider and the inner wall of one side of the slide groove are connected through an elastic member (707). A toggle block (708) is provided on the top of the protective cover (706); and, A fixing member, disposed at one end of the bottom of the protective cover (706), used to enter into the insertion hole (728) provided on the bottom wall of the notch (704) to fix the protective cover (706) when the protective cover (706) and the groove are completely offset; The fixing member comprises: A movable plate (709) is movably disposed in a groove body opened at one end of the bottom of the protective cover (706), and the movable plate (709) is connected to the inner wall of the top of the groove body through a spring; The clamping rod (710) is matched with the insertion hole (728) and is arranged at the bottom of the movable plate (709), and a ball is embedded in the bottom end thereof to slide against the bottom wall of the notch (704); and, A pull rod (711) is disposed on the top of the movable plate (709), and the top of the pull rod passes through the top of the protective cover (706); The integrated control cooking appliance (700) further comprises: A movable frame (718) is slidably disposed in a cavity provided in the handle portion (703); an arc-shaped protrusion (719) is disposed at one end of the movable frame (718); a push rod (720) is movably disposed on one side of the protrusion (719); the push rod (720) is vertically slidably disposed in the cavity, and one end of the push rod passes through the insertion hole (728), and the other end is slidably abutted against the movable frame (718), and is driven to move upward by the protrusion (719); a spring for driving the push rod (720) to return downward is disposed in the cavity; and, The hanging portion (714) is arranged at one end of the handle portion (703) away from the connecting rod portion (701), and a hanging hole (715) is provided on the hanging portion (714). The hanging hole (715) is used for use with a hanging rack (900) arranged on the stove body (100). One side of the hanging portion (714) passes through the handle portion (703) through the connecting rod and is connected to the movable frame (718). One end of the movable frame (718) is connected to the inner wall of one side of the cavity through the second elastic member (717).

2. The gas stove according to claim 1, characterized in that: The integrated control handle (600) comprises a mounting plate (601), a base (603) arranged on one side of the mounting plate (601), a handle rotating shaft (602) arranged on the mounting plate (601), a rotating handle (605) arranged at one end of the handle rotating shaft (602), and a control module (606) arranged on the base (603); the other end of the handle rotating shaft (602) extends into the base (603) and is provided with a magnet (604) through a fixing plate; a full-angle magnetic control sensor for cooperating with the magnet (604) is provided in the base (603); and the full-angle magnetic control sensor is electrically connected to the control module (606).

3. The gas stove according to claim 1, characterized in that: The control button comprises a closing button (712) arranged at one end of the top of the fire power adjustment module (705), and the closing button (712) is used to control the closing of electrical components in the stove integrated intelligent control system (200); The protective cover (706) is provided with an assembly groove at one end relative to the closing button (712), a top plate (722) is provided in the assembly groove, a magnetic block (723) is embedded on the top plate (722), a pressing ball (721) for pressing the closing button (712) is movably penetrated through the inner wall of the assembly groove and rotatably provided at the bottom of the top plate (722), a magnetic block (725) corresponding to the magnetic block (723) is provided on the top inner wall of the assembly groove, the magnetic block (725) is used to drive the magnetic block (723) to drive the top plate (722) downward, a reset member for driving the top plate (722) to reset upward is provided on the top plate (722) and the inner wall of the assembly groove, and one side of the top plate (722) slides A magnetic isolation plate (724) is provided for covering the top of the magnetic block 1 (723), and the magnetic isolation plate (724) is connected to one end of the top plate (722) through a spring. A contact plate is vertically provided on the top of the magnetic isolation plate (724), and one side of the contact plate is slidably abutted against a horizontally arranged contact rod (726), and the end of the contact rod (726) away from the contact plate is connected to the side wall of the notch (704). When one end of the protective cover (706) relative to the closing button (712) contacts the side wall of the notch (704), the magnetic isolation plate (724) is staggered with the magnetic block 1 (723), and at this time, the top plate (722) gradually moves downward to a preset position under the action of the magnetic block 1 (723) and the magnetic block 2 (725).

4. The gas stove according to claim 3, characterized in that: A cleaning pad (713) for cleaning the control button is detachably provided at the bottom of the protective cover (706); a liquid storage chamber for storing cleaning liquid is provided in the handle portion (703) and adjacent to the groove; an upper liquid roller (727) is rotatably provided in the liquid storage chamber; the upper end of the upper liquid roller (727) movably penetrates the inner wall of the bottom of the notch (704); when the protective cover (706) moves, the upper liquid roller (727) is driven by friction of the cleaning pad (713) to rotate in the liquid storage chamber and apply the cleaning liquid in the liquid storage chamber to the cleaning pad (713).

5. The gas stove according to claim 1, characterized in that: A counterweight block (716) is provided on the inner wall of the cavity.

6. The gas stove according to claim 1, characterized in that: The stove body (100) is also provided with a display screen (800) electrically connected to the stove integrated intelligent control system (200).

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