A burner with air door adjustment at mixed gas outlet and its action method

Abstract

The present invention provides a burner for adjusting the damper at the outlet of the mixed gas and a method for its action, comprising a burner head, a gas distribution plate and a fire cover stacked from bottom to top, the fire cover comprising an inner ring fire cover and an outer ring fire cover in the form of an inner and outer ring sleeve, the gas distribution plate comprising an inner ring gas plate and an outer ring gas plate in the form of an inner and outer ring sleeve, the inner ring fire cover and the inner ring gas plate buckle together to form an inner ring mixing chamber, the outer ring fire cover and the outer ring gas plate buckle together to form an outer ring mixing chamber, a plurality of air inlet holes are opened on the side of the burner head, an outer ring mixed gas outlet is opened on the bottom wall of the outer ring gas plate, one of the air inlet holes is connected to the outer ring mixed gas outlet through an outer ring ejector pipe, the inner ring mixed gas outlet is opened at the bottom of the inner ring gas plate, another air inlet hole is connected to the inner ring mixed gas outlet through an inner ring ejector pipe, and an adjustment component for changing the ventilation cross-sectional area is arranged at the outer ring mixed gas outlet and / or the inner ring mixed gas outlet. The present invention arranges the damper adjustment structure at the outlet of the mixed gas, so as to realize visual adjustment and easy operation.

Description

Technical Field

[0001] The invention belongs to the technical field of kitchen stoves, in particular to a burner with an adjustable air door at a mixed gas outlet and an action method thereof. Background Art

[0002] Gas stoves refer to kitchen appliances that use gas fuels such as liquefied petroleum gas (liquid), artificial gas, and natural gas for direct heating. In terms of gas source, gas stoves are mainly divided into liquefied gas stoves, coal gas stoves, and natural gas stoves. In terms of stove burners, they are divided into single burners, double burners, and multi-burner stoves.

[0003] Tabletop stoves are mainly composed of burners (burner heads, inner and outer fire covers), valve bodies (including nozzles, damper plates, and conical springs), shells (which can be split shells - assembled from the panel, back plate, and left and right side plates, or integral stretched shells), stove racks, knobs, liquid trays, stove feet, air inlet pipes, and pulse igniters (special for pulse ignition stoves). When the gas stove is working, the gas enters the stove from the air inlet pipe, and enters the burner head after being adjusted by the gas valve (adjusted by the user through the knob), and is mixed with a portion of air (this portion of air is called primary air). These mixed gases are ejected from the fire holes of the ignition distributor and ignited by the ignition device to form flames (the air required for combustion is called secondary air). These flames are used to heat the cookware placed on the pot support.

[0004] The burner with an adjustable damper at the mixed gas outlet is used to adjust the amount of primary air intake to adjust the combustion state of the burner. Currently, all adjustment methods are to adjust at the gas spray and primary air intake ends. Such adjustment requires the bottom shell to be removed from the stove and then adjusted, which is very inconvenient, especially for integrated stoves. Since the stove is integrated with the functional cabinet below, the damper adjustment device is complicated, the cost is high and the adjustment is extremely inconvenient. Summary of the invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a burner and a method of operating the burner, which sets a primary air conditioning structure at the outlet of the gas-air mixture and controls the primary air coefficient by adjusting the cross-sectional area of ​​the mixed gas outlet and adjusts the damper at the mixed gas outlet.

[0006] The objectives of the present invention can be achieved through the following technical solutions: a burner with an air damper adjusted at a mixed gas outlet, comprising a burner head, a gas distribution plate and a fire cover stacked from bottom to top, the fire cover comprising an inner ring fire cover and an outer ring fire cover in the form of an inner and outer ring sleeve, the gas distribution plate comprising an inner ring gas plate and an outer ring gas plate in the form of an inner and outer ring sleeve, the inner ring fire cover is snapped together with the inner ring gas plate to form an inner ring mixing chamber, the outer ring fire cover is snapped together with the outer ring gas plate to form an outer ring mixing chamber, a plurality of air inlet holes are opened on the side of the burner head, an outer ring mixed gas outlet is opened on the bottom wall of the outer ring gas plate, one of the air inlet holes is connected to the outer ring mixed gas outlet through an outer ring ejector pipe, the inner ring mixed gas outlet is opened at the bottom of the inner ring gas plate, the other air inlet hole is connected to the inner ring mixed gas outlet through an inner ring ejector pipe, and an adjustment component for changing the ventilation cross-sectional area is arranged at the outer ring mixed gas outlet and / or the inner ring mixed gas outlet.

[0007] In the above-mentioned burner with an adjustable damper at the mixed gas outlet, the adjusting component is an annular adjusting plate, and the adjusting plate is attached to the bottom wall of the outer ring gas disk and forms a contact sliding connection with the bottom wall of the outer ring gas disk. An adjusting hole is opened on the adjusting plate, and the adjusting hole is arranged corresponding to the outer ring mixed gas outlet. An arc-shaped guide groove is opened on the adjusting plate, and a screw is fixed on the bottom wall of the outer ring gas disk. The screw passes through the guide groove to form a horizontal sliding connection and a longitudinal limit clamping. A limit plate extends downward from one side of the adjusting hole, and the limit plate extends into the outer ring mixed gas outlet. A paddle extends upward from the other side of the adjusting hole.

[0008] The bottom wall of the outer ring gas disk is provided with a threaded hole, and a screw is inserted into the threaded hole to form a threaded fitting connection. The screw head of the screw is located above the guide slide groove, the screw rod of the screw passes through the guide slide groove from top to bottom, and the bottom end of the screw rod of the screw passes into the threaded hole.

[0009] In the above-mentioned burner with an adjustable damper at the outlet of the mixed gas, a gear groove is provided on the outer peripheral edge of the adjusting plate, and the gear groove includes a plurality of continuously arranged semicircular notches. An elastic positioning block is protruded on the inner side wall of the outer ring gas disk, and the elastic positioning block is embedded in any semicircular notch of the gear groove.

[0010] In the above-mentioned burner with an adjustable damper at the mixed gas outlet, the adjustment hole and the outer ring mixed gas outlet are arranged to match each other in shape and specification.

[0011] The method of action of the burner with the damper adjusted at the outlet of the mixed gas includes the following:

[0012] 1) When the air intake volume needs to be adjusted, the outer ring fire cover of the outer ring mixing chamber is opened to expose the adjustment plate located in the outer ring mixing chamber;

[0013] 2) Hold the paddle with your hand and rotate it clockwise along the circumference. During the rotation of the adjustment plate, the adjustment hole moves to reduce the communicating area with the outer ring mixed gas outlet, thereby reducing the gas intake and air intake at the same time, so as to achieve the purpose of reducing the fire power, until the limit piece abuts against the other side edge of the outer ring mixed gas outlet, and the outer ring mixed gas outlet is completely closed;

[0014] 3) Hold the paddle with your hand and rotate it counterclockwise along the circumference. During the rotation of the adjustment plate, the adjustment hole moves to increase the communicating area with the outer ring mixed gas outlet, thereby increasing the gas intake and air intake at the same time, so as to achieve the purpose of increasing the firepower, until the limit piece abuts against one side edge of the outer ring mixed gas outlet, and the outer ring mixed gas outlet is completely open;

[0015] 4) After the adjustment is completed, close the outer ring fire cover and the outer ring gas disk.

[0016] In the above-mentioned method of operation of the burner for adjusting the air damper at the mixed gas outlet, when the adjusting plate rotates, the elastic positioning block of the outer ring gas disk and the gear slot of the adjusting plate are relatively displaced; when the adjusting plate stops rotating, the elastic positioning block of the outer ring gas disk falls into a semicircular notch of the gear slot accordingly, and in the absence of external force, the elastic positioning block and the semicircular notch are engaged and positioned, thereby fixing the open area of ​​the outer ring mixed gas outlet.

[0017] Compared with the prior art, the burner with air damper adjustment at the mixed gas outlet and the method of action thereof have the following advantages:

[0018] 1. The damper adjustment structure is arranged at the outlet of the burner gas and air mixture, which is located above the stove top. In this way, when adjusting the damper, there is no need to remove the bottom shell from the stove and adjust it by groping, so that visual adjustment can be achieved, and the adjustment opening area is accurate and easy to operate.

[0019] 2. Especially for integrated stoves, there is no need to design a complex transmission mechanism to move the air door, which improves the reliability of the adjustment operation and greatly reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the maximum degree of adjustment of the outer ring mixed gas outlet in the present invention.

[0021] Figure 2 It is a structural diagram of the degree of reduction of the outer ring mixed gas outlet adjustment in the present invention.

[0022] Figure 3 It is a three-dimensional structural diagram of the adjustment plate in the present invention.

[0023] Figure 4 It is the overall appearance structure diagram of the present invention.

[0024] In the figure, 1. air inlet; 2. burner head; 3. inner ring fire cover; 4. outer ring fire cover; 5. outer ring gas disc; 6. adjustment plate; 6a. adjustment hole; 6b. paddle; 6c. limit plate; 6d. guide groove; 6e. gear slot; 7. screw. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] like Figures 1 to 4 As shown, the burner with an air damper adjusted at the mixed gas outlet comprises a burner head 2, a gas distribution plate and a fire cover stacked from bottom to top, the fire cover comprising an inner ring fire cover 3 and an outer ring fire cover 4 which are in the form of inner and outer ring sleeves, the gas distribution plate comprising an inner ring gas plate and an outer ring gas plate 5 which are in the form of inner and outer ring sleeves, the inner ring fire cover 3 is buckled with the inner ring gas plate to form an inner ring mixing chamber, the outer ring fire cover 4 is buckled with the outer ring gas plate 5 to form an outer ring mixing chamber, a plurality of air inlet holes 1 are opened on the side of the burner head 2, an outer ring mixed gas outlet is opened on the bottom wall of the outer ring gas plate 5, one of the air inlet holes 1 is connected to the outer ring mixed gas outlet through an outer ring ejector pipe, the inner ring mixed gas outlet is opened at the bottom of the inner ring gas plate, the other air inlet hole 1 is connected to the inner ring mixed gas outlet through an inner ring ejector pipe, and an adjusting component for changing the ventilation cross-sectional area is arranged at the outer ring mixed gas outlet and / or the inner ring mixed gas outlet.

[0027] The adjustment component is a circular adjustment plate 6, which is attached to the bottom wall of the outer ring gas disk 5 and forms a contact sliding connection with the bottom wall of the outer ring gas disk 5. An adjustment hole 6a is opened on the adjustment plate 6, and the adjustment hole 6a is arranged corresponding to the outer ring mixed gas outlet. An arc-shaped guide groove 6d is opened on the adjustment plate 6, and a screw 7 is fixed on the bottom wall of the outer ring gas disk 5. The screw 7 passes through the guide groove 6d to form a horizontal sliding connection and a longitudinal limit card connection. One side of the adjustment hole 6a extends downward through a limit plate 6c, and the limit plate 6c extends into the outer ring mixed gas outlet. The other side of the adjustment hole 6a extends upward through a paddle 6b.

[0028] The bottom wall of the outer ring gas disk 5 is provided with a threaded hole, and the screw 7 is inserted into the threaded hole to form a threaded connection. The screw head of the screw 7 is located above the guide groove 6d, and the screw rod of the screw 7 passes through the guide groove 6d from top to bottom, and the bottom end of the screw rod of the screw 7 is inserted into the threaded hole.

[0029] A gear slot 6e is arranged on the outer peripheral edge of the adjustment plate 6, and the gear slot 6e includes a plurality of semicircular notches arranged continuously. An elastic positioning block is convexly arranged on the inner side wall of the outer ring air disk 5, and the elastic positioning block is embedded in any semicircular notch of the gear slot 6e.

[0030] The shape and specification of the regulating hole 6a and the outer ring mixed gas outlet are matched and arranged.

[0031] The method of action of the burner with the damper adjusted at the outlet of the mixed gas includes the following:

[0032] 1) When the air intake volume needs to be adjusted, the outer ring fire cover 4 of the outer ring air mixing chamber is opened to expose the adjustment plate 6 located in the outer ring air mixing chamber;

[0033] 2) Hold the paddle 6b by hand and rotate it clockwise along the circumference. During the rotation of the adjusting plate 6, the adjusting hole 6a moves to reduce the communicating area with the outer ring mixed gas outlet, thereby reducing the gas intake and air intake at the same time, so as to achieve the purpose of reducing the fire power, until the limiting piece 6c abuts against the other side edge of the outer ring mixed gas outlet, and the outer ring mixed gas outlet is completely closed;

[0034] 3) Hold the paddle 6b by hand and rotate it counterclockwise. During the rotation of the adjusting plate 6, the adjusting hole 6a moves to increase the communicating area with the outer ring mixed gas outlet, thereby increasing the gas intake and air intake at the same time, so as to achieve the purpose of increasing the firepower, until the limiting piece 6c abuts against one side edge of the outer ring mixed gas outlet, and the outer ring mixed gas outlet is completely open;

[0035] 4) After the adjustment is completed, close the outer ring fire cover 4 with the outer ring gas disk 5.

[0036] When the adjusting plate 6 rotates, the elastic positioning block of the outer ring air disc 5 and the gear slot 6e of the adjusting plate 6 are relatively displaced; when the adjusting plate 6 stops rotating, the elastic positioning block of the outer ring air disc 5 falls into a semicircular notch of the gear slot 6e, and in the absence of external force, the elastic positioning block and the semicircular notch are engaged and positioned, thereby fixing the open area of ​​the outer ring mixed gas outlet.

[0037] Compared with the prior art, the burner with air damper adjustment at the mixed gas outlet and the method of action thereof have the following advantages:

[0038] 1. The damper adjustment structure is arranged at the outlet of the burner gas and air mixture, which is located above the stove top. In this way, when adjusting the damper, there is no need to remove the bottom shell from the stove and adjust it by groping, so that visual adjustment can be achieved, and the adjustment opening area is accurate and easy to operate.

[0039] 2. Especially for integrated stoves, there is no need to design a complex transmission mechanism to move the air door, which improves the reliability of the adjustment operation and greatly reduces the cost.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although the terms such as air inlet 1, burner head 2, inner ring fire cover 3, outer ring fire cover 4, outer ring gas plate 5, adjustment plate 6, adjustment hole 6a, paddle 6b, limit plate 6c, guide slot 6d, gear slot 6e, screw 7 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A burner with an air damper adjusted at a mixed gas outlet, comprising a burner head, a gas distribution plate and a fire cover stacked from bottom to top, wherein the fire cover comprises an inner ring fire cover and an outer ring fire cover in the form of an inner and outer ring sleeve, the gas distribution plate comprises an inner ring gas plate and an outer ring gas plate in the form of an inner and outer ring sleeve, the inner ring fire cover is buckled with the inner ring gas plate to form an inner ring mixing chamber, and the outer ring fire cover is buckled with the outer ring gas plate to form an outer ring mixing chamber, characterized in that: A plurality of air inlet holes are opened on the side of the burner head, an outer ring mixed gas outlet is opened on the bottom wall of the outer ring gas disc, one of the air inlet holes is connected to the outer ring mixed gas outlet through an outer ring ejector pipe, an inner ring mixed gas outlet is opened at the bottom of the inner ring gas disc, another air inlet hole is connected to the inner ring mixed gas outlet through an inner ring ejector pipe, and an adjustment component for changing the ventilation cross-sectional area is arranged at the outer ring mixed gas outlet; The adjusting component is an annular adjusting plate, the adjusting plate is attached to the upper surface of the bottom wall of the outer ring gas disk and forms a contact sliding connection with the bottom wall of the outer ring gas disk, an adjusting hole is opened on the adjusting plate, the adjusting hole is arranged corresponding to the outer ring mixed gas outlet, an arc-shaped guide groove is opened on the adjusting plate, a screw is fixed on the bottom wall of the outer ring gas disk, the screw passes through the guide groove to form a horizontal sliding connection and a longitudinal limit clamping, a limit plate extends downward from one side of the adjusting hole, the limit plate extends into the outer ring mixed gas outlet, and a paddle extends upward from the other side of the adjusting hole; A gear slot is arranged on the outer peripheral edge of the adjustment plate, and the gear slot includes a plurality of semicircular notches arranged continuously. An elastic positioning block is convexly arranged on the inner side wall of the outer ring gas disk, and the elastic positioning block is embedded in any semicircular notch of the gear slot; The adjustment hole and the outer ring mixed gas outlet are arranged to match each other in shape and specification.

2. The method for operating a burner with an air damper adjusted at a mixed gas outlet according to claim 1, characterized in that: Includes the following: 1) When the air intake volume needs to be adjusted, the outer ring fire cover of the outer ring mixing chamber is opened to expose the adjustment plate located in the outer ring mixing chamber; 2) Hold the paddle with your hand and rotate it clockwise along the circumference. During the rotation of the adjustment plate, the adjustment hole moves to reduce the communicating area with the outer ring mixed gas outlet, thereby reducing the gas intake and air intake at the same time, so as to achieve the purpose of reducing the fire power, until the limit piece abuts against the other side edge of the outer ring mixed gas outlet, and the outer ring mixed gas outlet is completely closed; 3) Hold the paddle with your hand and rotate it counterclockwise. During the rotation of the adjustment plate, the adjustment hole moves to increase the communicating area with the outer ring mixed gas outlet, thereby increasing the gas intake and air intake at the same time, so as to achieve the purpose of increasing the firepower, until the limit piece abuts against one side edge of the outer ring mixed gas outlet, and the outer ring mixed gas outlet is completely open; 4) After the adjustment is completed, close the outer ring fire cover and the outer ring gas disk.

3. The method for operating a burner with an air damper adjusted at a mixed gas outlet according to claim 2, characterized in that: When the adjusting plate rotates, the elastic positioning block of the outer ring air disc and the gear slot of the adjusting plate are relatively displaced; when the adjusting plate stops rotating, the elastic positioning block of the outer ring air disc falls into a semicircular notch of the gear slot, and in the absence of external force, the elastic positioning block and the semicircular notch are engaged and positioned, thereby fixing the open area of ​​the outer ring mixed gas outlet.

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