CN218763540U - Gas stove - Google Patents

Abstract

A gas stove relates to the technical field of household appliances and is used for solving the problem that the air quantity entering from the inlet end of an injection pipe cannot be automatically adjusted and cannot be accurately adjusted; the injection pipe is fixed on the furnace head and is provided with an air inlet and an air outlet, the air outlet is communicated with the furnace chamber, and the air inlet is communicated with the outside of the furnace chamber; the nozzle at least partially extends into the injection pipe and is used for injecting fuel gas into the injection pipe; the baffle is fixed at the air inlet and partially shields the air inlet, and the baffle is provided with a vent hole; the sensor is at least partially positioned in the ejector pipe and used for detecting the actual oxygen concentration in the ejector pipe; the adjusting piece is arranged at the vent hole and used for moving between a first position and a second position so as to adjust the opening degree of the vent hole; the power device drives the adjusting piece to move; the controller is electrically connected with the power device and the sensor. The application is used for cooking food.

Description

Gas stove

Technical Field

The application relates to the technical field of household appliances, in particular to a gas stove.

Background

The gas stove is widely applied to daily life as a household appliance and mainly comprises a stove head, an injection pipe and a nozzle, wherein a mixing cavity is formed in the stove head; the injection pipe is fixedly connected with the furnace end, the injection pipe is provided with an inlet end and an outlet end, the outlet end is communicated with the mixing cavity, the inlet end is communicated with the outside of the mixing cavity, and the nozzle is arranged at the inlet end and at least partially extends into the injection pipe through the inlet end.

In the related art, when the gas stove is used, the nozzle is used for spraying gas into the injection pipe, and meanwhile, the opening degree of the inlet end is manually adjusted, so that a certain amount of air can enter the injection pipe through the inlet end, and the air and the gas are mixed and then enter the mixing cavity to start the gas stove.

However, the amount of air entering the ejector pipe cannot be accurately controlled through manual adjustment, if too much air enters the ejector pipe, the flame is too short, the contact with the bottom of a pot is less, and the heat efficiency is low; if too little air is introduced, the combustion of the gas is insufficient, and the flame will be elongated, virtual, yellow, etc.

SUMMERY OF THE UTILITY MODEL

The application provides a gas-cooker for solve unable automatically regulated and accurate regulation and draw the problem of the air quantity that penetrates of penetrating tub entrance point.

The application provides a gas-cooker, including the furnace end, draw and penetrate pipe, nozzle, baffle, sensor, regulating part, power device and controller. The furnace chamber is arranged inside the furnace end; the injection pipe is fixed on the furnace head and is provided with an air inlet and an air outlet, the air outlet is communicated with the furnace chamber, and the air inlet is communicated with the outside of the furnace chamber; the nozzle at least partially extends into the injection pipe and is used for injecting fuel gas into the injection pipe; the baffle is fixed at the air inlet and partially shields the air inlet, and the baffle is provided with a vent hole; the sensor is at least partially positioned in the injection pipe and used for detecting the actual oxygen concentration in the injection pipe; the adjusting piece is arranged at the vent hole and used for moving between a first position and a second position so as to adjust the opening degree of the vent hole; the power device is used for driving the adjusting piece to move; a controller is electrically connected with the power plant and the sensor, the controller configured to: under the condition that the actual oxygen concentration is smaller than the preset low threshold value, controlling a power device to drive an adjusting piece to move from a first position to a second position so as to increase the opening degree of the vent hole; and under the condition that the actual oxygen concentration is greater than the preset high threshold value, controlling the power device to drive the adjusting piece to move from the second position to the first position so as to reduce the opening degree of the vent hole.

The gas-cooker in this application, when using, open the nozzle, jet the gas to draw in penetrating intraductally, make the air simultaneously through the ventilation hole entering draw penetrate intraductally, in drawing penetrate intraductally, gas and air mix to finally enter into the furnace chamber, the ignition of cooperation gas-cooker's ignition realizes igniting.

Because the sensor can detect and draw the intraductal actual oxygen concentration of penetrating, consequently under the condition that actual oxygen concentration is less than predetermineeing low threshold, power device can drive the regulating part by first position to the motion of second position to the aperture of increase ventilation hole, thereby make the air content who gets into and draw and penetrate intraductal increase, with the intraductal oxygen concentration of improvement injection, thereby make the gas fully burn, prevent that flame from appearing lengthening, blurring, yellow flame etc. phenomenon.

And under the condition that actual oxygen concentration is greater than preset high threshold, power device can drive the regulating part and move to first position by the second position to reduce the aperture in ventilation hole, thereby make the entering draw penetrate intraductal air content and reduce, draw penetrate intraductal oxygen concentration, thereby make the gas can normally burn, the length of flame is in normal scope, the raising the thermal efficiency.

Because oxygen sensor can monitor constantly and draw intraductal oxygen concentration of penetrating, consequently can utilize the regulating part constantly to adjust the aperture in ventilation hole to constantly adjust the intraductal oxygen volume of penetrating, realize promptly drawing the electrodeless regulation of intraductal oxygen volume of penetrating. So adjust more accurate, convenient.

In some embodiments of the present application, an adjusting member is rotatably disposed at the air inlet, and a plurality of gear teeth are formed on the adjusting member; the power device comprises a driving piece and a gear, and the driving piece is fixed on the injection pipe; the gear is connected with the output shaft of the driving part in a transmission mode, and the gear is meshed with gear teeth on the adjusting part and used for driving the adjusting part to rotate between the first position and the second position.

Utilize driving piece drive gear to rotate, because be formed with a plurality of teeth of a cogwheel on the regulating part, consequently with gear and teeth of a cogwheel meshing, can drive the regulating part and rotate between primary importance and second place to adjust the aperture of ventilation hole. The gear is used for meshing transmission, so that the adjusting piece can rotate conveniently.

In some embodiments of the present application, two vent holes are formed, where the two vent holes include a first vent hole and a second vent hole, and the first vent hole and the second vent hole are sequentially distributed at intervals in a direction around a rotation axis of the adjusting member; the adjusting piece comprises a first adjusting plate and a second adjusting plate, and a plurality of gear teeth are formed on the first adjusting plate; the second adjusting plate is fixedly connected with the first adjusting plate, the first adjusting plate and the second adjusting plate are sequentially arranged at intervals in the direction around the rotating axis of the adjusting piece, and the vertical projection of the second adjusting plate on the baffle is positioned between the first ventilation hole and the second ventilation hole; under the condition that the actual oxygen concentration is smaller than the preset low threshold value, the opening degree of the first vent hole is increased by the first adjusting plate, and the opening degree of the second vent hole is increased by the second adjusting plate; in the case where the actual oxygen concentration is greater than the preset high threshold, the first regulating plate reduces the opening degree of the first ventilation hole, and the second regulating plate reduces the opening degree of the second ventilation hole.

Through setting up first ventilation hole and second ventilation hole to make the regulating part include first regulating plate and second regulating plate, utilize two regulating plates to adjust the aperture in two ventilation holes respectively, so, in the direction around the axis of rotation of regulating part, can make the air can be comparatively even the entering draw penetrate intraductally, so be convenient for the mixture of air and gas.

In some embodiments of the present application, the first ventilation hole and the second ventilation hole are symmetrically disposed at both sides of a rotation center of the adjusting member, and the first adjusting plate and the second adjusting plate are symmetrically disposed at both sides of the rotation center of the adjusting member.

Make first ventilation hole symmetry set up for first regulating plate and second regulating plate symmetry set up, so when the regulation, can be so that the regulation of the aperture in first ventilation hole and second ventilation hole is unanimous.

In some embodiments of the present application, the alarm device is electrically connected to the controller, and the alarm device alarms when the vent is fully open and the actual oxygen concentration is less than the preset low threshold.

By arranging the alarm device, the use safety performance of the gas stove can be improved.

In some embodiments of the present application, the gas stove further includes an air inlet pipeline and a gas valve, one end of the air inlet pipeline is communicated with the nozzle, and the other end of the air inlet pipeline is used for being communicated with gas; the gas valve sets up on the intake pipe way for the break-make of control intake pipe way, the gas valve is connected with the controller electricity, opens completely at the ventilation hole and under the condition that actual oxygen concentration is less than predetermineeing low threshold, the controller is configured to control the gas valve and closes.

When the gas stove is abnormal, the gas valve is closed, so that the nozzle stops jetting gas, and the use safety performance of the gas stove is further ensured.

In some embodiments of the application, the baffle plate is provided with a connecting hole, and the nozzle is arranged at the air inlet and at least partially extends into the injection pipe through the connecting hole.

The connecting holes are formed in the baffle, so that the nozzle is convenient to arrange.

In some embodiments of the present application, the injection pipe is provided with a first through hole; the gas-cooker still includes the mount pad, and the mount pad is fixed in and draws on penetrating the pipe, has seted up the second through-hole on the mount pad, and first through-hole and second through-hole intercommunication, and it is intraductal that the sensor stretches into to draw through first through-hole and second through-hole, sensor and mount pad fixed connection.

The sensor is installed on the injection pipe by utilizing the installation seat, so that the installation and the arrangement of the sensor are convenient.

In some embodiments of the application, the inner wall of the second through hole is provided with an internal thread, the sensor is provided with an external thread, and the sensor is in threaded connection with the injection pipe.

The sensor is mounted on the mounting seat in a threaded connection mode, so that the sensor can be mounted and dismounted conveniently.

In some embodiments of the present application, one end of the signal line is electrically connected to the sensor, and the other end of the signal line is electrically connected to the controller. Utilize the signal line to realize the electricity between sensor and the controller and be connected, the line connection is more stable.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

Fig. 1 is a schematic external structural view of a gas range provided in an embodiment of the present application;

fig. 2 is a schematic view showing an external structure of a gas range provided in the related art;

fig. 3 is a schematic view of another external structure of a gas range according to an embodiment of the present application;

fig. 4 is a schematic view of another external structure of a gas range according to an embodiment of the present application;

fig. 5 is a schematic view of another external structure of a gas range according to an embodiment of the present application;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a schematic external structural diagram of an oxygen sensor and a signal line provided in an embodiment of the present application;

fig. 8 is a schematic view of another external structure of a gas range according to an embodiment of the present application;

fig. 9 is an external structural schematic diagram of a driving device according to an embodiment of the present application;

fig. 10 is a schematic view of another external structure of a gas range provided in an embodiment of the present application;

FIG. 11 is an enlarged view of a portion of FIG. 10 at B;

FIG. 12 is an enlarged partial view at C of FIG. 8;

fig. 13 is a partially enlarged view of fig. 3 at D.

Reference numerals: 1-gas range; 10-furnace end; 20-an injection pipe; 21-inner ring ejector pipe; 22-outer ring injection pipe; 30-a nozzle; 40-a baffle plate; 41-a vent hole; 41A-first vent; 41B-a second vent hole; 42-a through hole; 50-a sensor; 60-an adjusting part; 61-a first adjustment plate; 62-a second regulating plate; 70-a power plant; 71-a driver; 72-gear; 73-a push rod motor; 80-signal lines; 81-a mounting seat; 90-a cover plate; 91-projection; 92-a groove; 90A-mounting holes; 100-a first baffle; 110-air passing holes; 200-second baffle.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connected" are used in this application to have a meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Based on that, as shown in fig. 1, the gas stove 1 includes a stove head 10, and a cooker is placed on the stove head 10 to heat food in the cooker.

In order to heat food, as shown in fig. 1, the gas stove 1 further includes an injection pipe 20, a nozzle 30, an ignition device, an air inlet pipeline, and a gas valve (not shown in fig. 1), a stove cavity is provided inside the stove head 10, and the ignition device is disposed in the stove cavity; the injection pipe 20 is fixed on the furnace end 10, the injection pipe 20 is provided with an air inlet and an air outlet, the air outlet is communicated with the furnace chamber, and the air inlet is communicated with the outside of the furnace chamber; the nozzle 30 at least partially extends into the injection pipe 20 and is used for injecting fuel gas into the injection pipe 20, one end of the air inlet pipeline is communicated with the nozzle 30, and the other end of the air inlet pipeline is used for being communicated with the fuel gas; the gas valve is arranged on the gas inlet pipeline and used for controlling the on-off of the gas inlet pipeline, and the gas valve is electrically connected with the controller.

Through the setting, when cooking, open the gas valve, switch on the air inlet pipeline to make nozzle 30 and gas intercommunication, make the gas injected to drawing penetrate in the pipe 20, outside air also can penetrate through the air inlet entering and penetrate in the pipe 20 simultaneously, in penetrating pipe 20, air and gas mix, then enter the furnace chamber, finally utilize ignition to ignite the gas after mixing, thereby realize the heating to food.

It can be understood that the cross section of the injection pipe 20 in the radial direction is generally circular, and on this basis, in order to facilitate the opening of the air inlet, the air inlet is generally also circular.

In order to facilitate the arrangement of the nozzle 30, as shown in fig. 1, the nozzle 30 is arranged at the air inlet, and at least a part of the nozzle 30 extends into the injection pipe 20 through the air inlet, so that the fuel gas can be smoothly injected into the injection pipe 20 through the air inlet. The nozzle 30 is arranged at the air inlet, other transformation of the injection pipe 20 is not needed, and the arrangement of the nozzle 30 and the design of the injection pipe 20 are facilitated.

In addition, as shown in fig. 1, two injection pipes 20 are generally arranged, and include an inner ring injection pipe 21 and an outer ring injection pipe 22, the inner ring injection pipe 21 is used for introducing the gas into the furnace chamber and finally entering the inner ring of the fire cover of the gas stove 1, and the outer ring injection pipe 22 is used for introducing the gas into the furnace chamber and finally entering the outer ring of the fire cover of the gas stove 1, so that the middle part and the peripheral part of the cooker are uniformly heated, and the cooking efficiency is improved.

For convenience of description, only one injection pipe 20 will be described below.

In order to enable the gas to be in the optimal combustion state, the amount of air entering the ejector pipe 20 needs to be controlled, as shown in fig. 2, in the related art, a gas stove 1 is provided, which further includes a first baffle 100 and a second baffle 200 (air adjusting plate), the first baffle 100 is fixed at the air inlet and partially shields the air inlet, the first baffle 100 is provided with an air passing hole 110, so that the external air can enter the ejector pipe 20 through the air passing hole 110; the second baffle 200 is disposed at the air passing hole 110, and the second baffle 200 can rotate to change the opening degree of the air passing hole 110.

Through the above arrangement, when the air quantity in the injection pipe 20 is controlled, the operator rotates the second baffle 200 (the second baffle 200 is driven to rotate by the wrench in fig. 2), so that the second baffle 200 shields or opens the air passing hole 110, and the opening degree of the air passing hole 110 is enlarged or reduced. Thereby changing the air quantity entering the injection pipe 20, namely changing the content of oxygen entering the injection pipe 20, and ensuring that the fuel gas can reach the optimal combustion state.

However, because the amount of air entering the injection pipe 20 cannot be accurately controlled by manual adjustment, if too much air enters the injection pipe, the flame is too short, the contact with the bottom of the pot is less, and the heat efficiency is low; if too little air is introduced, the combustion of the gas is insufficient, and the flame will be elongated, virtual, yellow, etc.

Based on this, as shown in fig. 3, the gas stove 1 provided by the present application further includes a baffle 40, a sensor 50 (for example, an oxygen sensor), an adjusting member 60, a power device 70 and a controller, wherein the baffle 40 (generally, the shape of the baffle 40 is the same as that of the gas inlet, and the peripheral wall surface of the baffle 40 generally contacts with the inner wall of the injection pipe 20) is fixed at the gas inlet, and partially shields the gas inlet, and the baffle 40 is provided with a vent hole 41; the sensor 50 is at least partially positioned in the ejector tube 20 and is used for detecting the actual oxygen concentration in the ejector tube 20; the adjusting member 60 is disposed at the vent hole 41 for moving between a first position and a second position to adjust an opening degree of the vent hole 41; the power device 70 is used for driving the adjusting piece 60 to move; a controller is electrically connected to the power plant 70 and the sensor 50, the controller configured to: in the case that the actual oxygen concentration is less than the preset low threshold, controlling the power device 70 to drive the adjusting member 60 to move from the first position to the second position to increase the opening degree of the vent hole 41; in the case that the actual oxygen concentration is greater than the preset high threshold, the control power device 70 drives the adjusting member 60 to move from the second position to the first position to reduce the opening degree of the vent hole 41.

Because sensor 50 can detect the actual oxygen concentration who draws in penetrating the pipe 20, consequently under the condition that actual oxygen concentration is less than predetermineeing low threshold, power device 70 can drive regulating part 60 and move to the second position by primary importance to increase the aperture of ventilation hole 41, thereby make the air content who gets into in penetrating the pipe 20 increase, with the oxygen concentration who improves in penetrating the pipe 20, thereby make the gas fully burn, prevent that flame from appearing lengthening, blurring, yellow flame, etc.

And under the condition that actual oxygen concentration is greater than preset high threshold, power device 70 can drive regulating part 60 and move to first position by the second position to reduce the aperture of ventilation hole 41, thereby make the air content that gets into in drawing and penetrate pipe 20 reduce, with the oxygen concentration that reduces in drawing and penetrate pipe 20, thereby make the gas can normally burn, the length of flame is in normal scope, the increase of thermal efficiency.

Because the oxygen sensor 50 can constantly monitor the oxygen concentration in the injection pipe 20, the opening degree of the vent hole 41 can be constantly adjusted by the adjusting piece 60, so that the oxygen amount entering the injection pipe 20 is constantly adjusted, namely, stepless adjustment of the oxygen amount entering the injection pipe 20 is realized. So adjust more accurate, convenient.

In this case, it can be understood that, in order to allow the nozzle 30 to extend into the ejector tube 20 through the air inlet, a connection hole is formed in the baffle 40, and the nozzle 30 extends into the ejector tube 20 at least partially through the connection hole. For example, the connection hole may be opened at a central position of the baffle 40. So can make the gas from the central point of drawing penetrating pipe 20 locate along drawing penetrating the pipe length direction of penetrating pipe 20 and being jetted into and draw penetrating pipe 20, be convenient for gas and oxygen mixture.

It should be noted that the baffle 40 is fixed at the air inlet and partially shields the air inlet, which means that external air enters the ejector tube 20 through the vent hole 41.

In order to fix the baffle 40 at the air inlet, as shown in fig. 4, a protrusion 91 is arranged at the edge of the end face of the end where the air inlet of the injection pipe 20 is located, so that the protrusion 91 surrounds the injection pipe 20 for a circle to form a groove 92, the air inlet is arranged in the range of the bottom of the groove 92, and the baffle 40 is arranged in the groove 92; the gas range 1 provided by the present application further includes a cover plate 90, which covers the baffle 40 at the notch of the groove 92 and is fixed to the protrusion 91, for example, the baffle 40 may be fixed at the air inlet by clamping. The baffle 40 is clamped at the air inlet through the matching of the cover plate 90 and the injection pipe 20, so that the baffle 40 is fixed conveniently.

It can be understood that, in this case, it is necessary to open the mounting hole 90A corresponding to the connection hole in the cover plate 90, pass the nozzle 30 through the mounting hole 90A and the connection hole in this order, and fix the nozzle 30 at the mounting hole 90A. For example, the nozzle 30 may be fixed to the mounting hole by providing an external thread on the nozzle 30 and then providing an internal thread in the mounting hole 90A such that the external thread is engaged with the internal thread.

In addition, a through hole 42 corresponding to the vent hole 41 needs to be formed in the cover plate 90, so that the through hole 42 is communicated with the vent hole 41, and thus, it is ensured that external air can enter the ejector tube 20 through the through hole 42 and the vent hole 41. To facilitate the disposition of the adjuster 60, the adjuster 60 may be disposed at the through-hole 42. The opening degree of the vent hole 41 is adjusted by adjusting the opening degree of the through hole 42.

In addition, in order to realize the electrical connection between the sensor 50 and the controller, as shown in fig. 5, the gas range 1 further includes a signal line 80, one end of the signal line 80 is electrically connected to the sensor 50, and the other end of the signal line 80 is electrically connected to the controller. The sensor 50 and the controller are electrically connected by a wired connection, so that signal transmission between the sensor 50 and the controller is realized, and the wired connection can ensure that the signal transmission is more firm and stable.

Alternatively, the sensor 50 and the controller may be electrically connected in a wireless connection manner, so as to realize signal transmission therebetween, for example, a wireless bluetooth communication module is provided to realize wireless communication connection therebetween.

Furthermore, in order to facilitate at least partially disposing the sensor 50 in the injection pipe 20, as shown in fig. 6, a first through hole is formed on the injection pipe 20; the gas stove 1 further comprises a mounting seat 81, the mounting seat 81 is fixed on the injection pipe 20, for example, fixing modes such as gluing can be performed, such as gluing and fixing by using a structural adhesive, or the mounting seat 81 and the injection pipe 20 are designed into an integral die casting mode, so that the mounting seat 81 and the whole structural strength of the injection pipe 20 are higher, or the mounting seat 81 can be fixed on the injection pipe 20 by using modes such as screw fastening and the like, a second through hole is formed in the mounting seat 81, the first through hole is communicated with the second through hole, at least part of the sensor 50 extends into the injection pipe 20 through the first through hole and the second through hole, and the sensor 50 is fixedly connected with the mounting seat 81.

By arranging the mounting seat 81 on the outer wall of the injection pipe 20, the sensor is mounted by using the mounting seat 81

The sensor 50 is fixed on the injection pipe 20, so that the injection pipe 20 can extend into the injection pipe 20 through the first through hole and the second through hole, and the oxygen concentration in the injection pipe 20 is detected by the sensor 50. Utilize mount pad 81 to fix, do not need sensor 50 and the outer wall direct contact who draws penetrating pipe 20, can provide good operational environment for sensor 50, also be convenient for sensor 50's fixed simultaneously.

Illustratively, as shown in FIG. 7, the inner wall of the second through hole is internally threaded, and the sensor

An external thread is arranged on the sensor 50, and the sensor 50 is in threaded connection with the injection pipe 20. The threaded connection is simple and reliable, the sensor 50 is convenient to mount and dismount, and when the sensor 50 needs to be mounted, the sensor 50 can be mounted on the mounting seat 81 only by aligning the sensor 50 with the second through hole and then rotating the sensor 50; when the sensor 50 needs to be detached, the sensor 50 can be detached from the mounting seat 81 only by rotating the sensor 50 in the reverse direction.

Alternatively, the sensor 50 may be fixed by using a technique such as gluing, and the sensor 50 is inserted into the injection tube 20 through the first through hole and the second through hole, and then a gap between the mounting seat 81 and the sensor 50 is filled with a glue, for example, a structural glue, so as to achieve the fixing.

In other embodiments, the sensor 50 may be directly fixed on the outer wall of the injection pipe 20, and then the injection pipe 20 is provided with a through hole, so that at least a portion of the sensor 50 extends into the injection pipe 20 through the through hole. The sensor 50 is directly fixed on the injection pipe 20, so that the fixing mode is simple and the cost is low.

In order to drive the adjusting member 60 to move by using the power device 70, as shown in fig. 8, the adjusting member 60 is rotatably disposed at the air inlet, and a plurality of gear teeth are formed on the adjusting member 60; as shown in fig. 9, the power device 70 includes a driving member 71 and a gear 72, and as shown in fig. 8, the driving member 71 is fixed to the injection pipe 20; the gear 72 is drivingly connected to the output shaft of the driving member 71, and the gear 72 is engaged with the gear teeth of the adjusting member 60 for rotating the adjusting member 60 between the first position and the second position.

In this way, when the opening degree of the ventilation hole 41 needs to be increased, only the driving member 71 needs to be started, so as to drive the gear 72 to rotate, and since the gear 72 is meshed with the gear teeth on the adjusting member 60, the gear 72 can drive the adjusting member 60 to rotate from the first position to the second position, so as to reduce the area of the adjusting member 60 shielding the ventilation hole 41, and thus increase the opening degree of the ventilation hole 41.

Similarly, when the opening degree of the ventilation hole 41 needs to be reduced, only the driving part 71 needs to be started, so as to drive the gear 72 to rotate reversely, so that the adjusting part 60 rotates from the second position to the first position, so as to increase the area of the adjusting part 60 for shielding the ventilation hole 41, and thus reduce the opening degree of the ventilation hole 41. The meshing transmission is stable, and the transmission relation is simple.

It can be understood that, in this case, in order to allow the rotation of the adjusting member 60 to adjust the opening degree of the ventilation hole 41, the baffle plate 40 may be made perpendicular to the air intake direction at the air intake, and the adjusting member 60 may be made parallel to the baffle plate 40, and the surface of the adjusting member 60 facing the baffle plate 40 is made to abut against the baffle plate 40, so that the ventilation hole 41 may be shielded and opened when the adjusting member 60 rotates.

In this case, when the nozzle 30 extends into the injection pipe 20 through the connection hole, in order to rotatably dispose the adjusting member 60 at the air inlet and to allow the adjusting member 60 to rotate between the first position and the second position, the adjusting member 60 is rotatably disposed on the nozzle 30, so that the adjusting member 60 can rotate with the nozzle 30 (the central axis of the baffle plate 40) as a rotation center, and the vent hole 41 is opened at a position eccentric from the central axis of the baffle plate 40, so that the vent hole 41 can be blocked or opened when the adjusting member 60 rotates. In addition, since the adjusting member 60 is rotated around the nozzle 30, the arrangement of the nozzle 30 is not affected.

It is of course possible to have the axis of rotation of the adjustment member 60 in any other suitable position.

The driving member 71 may be an electric motor, or may be a motor.

On this basis, in order to realize the adjustment of the opening degree of the vent hole 41, as shown in fig. 10, two vent holes 41 are formed, the two vent holes 41 include a first vent hole 41A and a second vent hole 41B, and the first vent hole 41A and the second vent hole 41B are sequentially distributed at intervals in the direction around the rotation axis of the adjusting member 60; the adjusting member 60 includes a first adjusting plate 61 and a second adjusting plate 62, and a plurality of gear teeth are formed on the first adjusting plate 61; the second adjusting plate 62 is fixedly connected with the first adjusting plate 61, the first adjusting plate 61 and the second adjusting plate 62 are sequentially arranged at intervals in the direction around the rotation axis of the adjusting member 60, and the vertical projection of the second adjusting plate 62 on the baffle plate 40 is positioned between the first ventilation hole 41A and the second ventilation hole 41B; in the case where the actual oxygen concentration is less than the preset low threshold, the first regulating plate 61 increases the opening degree of the first ventilation holes 41A, and the second regulating plate 62 increases the opening degree of the second ventilation holes 41B; in the case where the actual oxygen concentration is greater than the preset high threshold, the first regulating plate 61 decreases the opening degree of the first ventilation hole 41A, and the second regulating plate 62 decreases the opening degree of the second ventilation hole 41B.

By providing two ventilation holes 41 (a first ventilation hole 41A and a second ventilation hole 41B) and providing two adjustment plates (a first adjustment plate 61 and a second adjustment plate 62), adjustment of the opening degrees of the two ventilation holes 41 is achieved, respectively.

Through the arrangement, because the first ventilation holes 41A and the second ventilation holes 41B are arranged at intervals around the rotation axis of the adjusting piece 60, when air enters the injection pipe 20 through the ventilation holes 41, the air can enter the adjusting piece 60 in the direction of the rotation axis, and the two positions can enter the adjusting piece 60, so that the gas and the air can be mixed conveniently, and the gas can be ignited conveniently.

On this basis, as shown in fig. 11, the first adjusting plate 61 and the second adjusting plate 62 are symmetrically disposed on both sides of the rotation center of the adjusting member 60, and the first ventilation hole 41A and the second ventilation hole 41B are symmetrically disposed on both sides of the rotation center of the adjusting member 60. Therefore, when air enters the injection pipe 20 through the vent hole 41, the air can enter the injection pipe 20 from the opposite position, so that the mixing of the gas and the air can be more convenient, and the gas can be conveniently ignited.

Under this condition, can set up the air inlet to circularly, set up first ventilation hole 41A and second ventilation hole 41B for fan-shaped structure, set up first regulating plate 61 and second regulating plate 62 to fan-shaped structure simultaneously, set up the teeth of a cogwheel on the arcwall face of first regulating plate 61 of fan-shaped structure to this utilizes the gear to drive first regulating plate 61 to rotate. The first adjusting plate 61 of the fan-shaped structure is adapted to the first ventilating hole 41A of the fan-shaped structure, the second adjusting plate 62 of the fan-shaped structure is adapted to the second ventilating hole 41B of the fan-shaped structure, the first ventilating hole 41A can be opened or closed better by using the first adjusting plate 61, and the second ventilating hole 41B can be opened or closed better by using the second adjusting plate 62. Thus, the opening degrees of the first vent hole 41A and the second vent hole 41B can be adjusted more precisely.

Alternatively, the first ventilation hole 41A and the second ventilation hole 41B may be asymmetric, and the corresponding first adjustment plate 61 and second adjustment plate 62 are also asymmetrically disposed.

In other embodiments, as shown in fig. 12, only one of the vent holes 41 may be provided, for example, only the first vent hole 41A is included, the adjusting member 60 only includes the first adjusting plate 61, and the first adjusting plate 61 increases the opening degree of the first vent hole 41A in the case where the actual oxygen concentration is less than the preset low threshold; in the case where the actual oxygen concentration is greater than the preset high threshold, the first regulation plate 61 decreases the opening degree of the first ventilation hole 41A. The opening degree of one vent hole 41 is adjusted by using an adjusting plate, and the adjusting plate is simple in structure and convenient to design and install.

In other embodiments, as shown in fig. 13, the power device 70 may also include only a push rod motor 73, the push rod motor 73 is fixed on the cover plate 90, and the push rod motor 73 is fixedly connected to the adjusting member 60 for pushing the adjusting member 60 to move between the first position and the second position. Through setting up push rod motor 73, the output shaft of push rod motor 73 can move along the axis direction, so fix adjusting part 60 on push rod motor 73's output shaft, under the motion of push rod motor 73 output shaft, can drive adjusting part 60 and move between first position and second position in order to realize the regulation to the aperture of ventilation hole 41.

In some embodiments, in order to improve the safety performance of the gas range 1 in use, the gas range 1 further comprises an alarm device, the alarm device is electrically connected with the controller, and the alarm device alarms when the vent hole 41 is fully opened and the actual oxygen concentration is less than the preset low threshold value.

When the opening of the vent hole 41 is the maximum, if the actual oxygen concentration detected by the sensor 50 is still smaller than the preset low threshold value, the alarm device can give an alarm, at the moment, the gas stove 1 breaks down and needs to be maintained, and the safety performance of the gas stove 1 is improved by arranging the alarm device.

The alarm device can comprise a buzzer, and when the alarm device is started, the buzzer sounds, or the alarm device can also comprise a prompting lamp, and when the alarm device gives an alarm, the prompting lamp emits light and flashes for prompting.

In other embodiments, in the event that the vent 41 is fully open and the actual oxygen concentration is less than the preset low threshold, the controller is configured to control the gas valve to close.

When the opening of the vent 41 is the maximum, if the actual oxygen concentration detected by the sensor 50 is still less than the preset low threshold, the gas valve is automatically closed, so that the gas inlet pipeline is closed, gas supply is not performed any more, and the safety performance of the gas stove 1 is improved.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A gas range, comprising:

a furnace end having a furnace chamber therein;

the injection pipe is fixed on the furnace head and is provided with an air inlet and an air outlet, the air outlet is communicated with the furnace chamber, and the air inlet is used for being communicated with the outside of the furnace chamber;

the nozzle at least partially extends into the ejector pipe and is used for injecting fuel gas into the ejector pipe;

the baffle is fixed at the air inlet and partially shields the air inlet, and a vent hole is formed in the baffle;

the sensor is at least partially positioned in the injection pipe and used for detecting the actual oxygen concentration in the injection pipe;

the adjusting piece is arranged at the vent hole and used for moving between a first position and a second position so as to adjust the opening degree of the vent hole;

the power device is used for driving the adjusting piece to move;

a controller electrically connected with the power plant and the sensor, the controller configured to: under the condition that the actual oxygen concentration is smaller than a preset low threshold value, controlling the power device to drive the adjusting piece to move from the first position to the second position so as to increase the opening degree of the vent hole;

and under the condition that the actual oxygen concentration is greater than a preset high threshold value, controlling the power device to drive the adjusting piece to move from the second position to the first position so as to reduce the opening degree of the vent hole.

2. The gas stove of claim 1, wherein the adjusting member is rotatably disposed at the gas inlet, and a plurality of gear teeth are formed on the adjusting member; the power device comprises:

the driving piece is fixed on the injection pipe;

the gear is in transmission connection with an output shaft of the driving piece and meshed with gear teeth on the adjusting piece, and the gear is used for driving the adjusting piece to rotate between the first position and the second position.

3. The gas stove of claim 2, wherein the number of the vent holes is two, the two vent holes comprise a first vent hole and a second vent hole, and the first vent hole and the second vent hole are sequentially distributed at intervals in the direction around the rotation axis of the adjusting member;

the adjusting member includes:

a first regulating plate on which a plurality of the gear teeth are formed;

the second adjusting plate is fixedly connected with the first adjusting plate, the first adjusting plate and the second adjusting plate are sequentially arranged at intervals in the direction around the rotating axis of the adjusting piece, and the vertical projection of the second adjusting plate on the baffle is positioned between the first ventilation hole and the second ventilation hole;

when the actual oxygen concentration is less than a preset low threshold, the first regulating plate increases the opening degree of the first vent hole, and the second regulating plate increases the opening degree of the second vent hole;

under the condition that actual oxygen concentration is greater than preset high threshold value, first regulating plate reduces the aperture in first ventilation hole, the second regulating plate reduces the aperture in second ventilation hole.

4. The gas range of claim 3, wherein the first vent hole and the second vent hole are symmetrically disposed at both sides of the rotation center of the adjusting member, and the first adjusting plate and the second adjusting plate are symmetrically disposed at both sides of the rotation center of the adjusting member.

5. The gas range according to any one of claims 1 to 4, further comprising an alarm device electrically connected to the controller, wherein the alarm device alarms when the vent is fully opened and the actual oxygen concentration is less than the preset low threshold.

6. The gas range of any one of claims 1 to 4, further comprising:

one end of the air inlet pipeline is communicated with the nozzle, and the other end of the air inlet pipeline is communicated with fuel gas;

the gas valve is arranged on the air inlet pipeline and used for controlling the on-off of the air inlet pipeline, the gas valve is electrically connected with the controller, the vent hole is completely opened, and the actual oxygen concentration is smaller than the preset low threshold value, and the controller is configured to control the gas valve to be closed.

7. The gas stove of any one of claims 1 to 4, wherein the baffle plate is provided with a connecting hole, and the nozzle is arranged at the air inlet and at least partially extends into the injection pipe through the connecting hole.

8. The gas stove as claimed in any one of claims 1 to 4, wherein the ejector pipe is provided with a first through hole;

the gas stove further comprises a mounting seat, the mounting seat is fixed on the injection pipe, a second through hole is formed in the mounting seat, the first through hole is communicated with the second through hole, at least part of the sensor extends into the injection pipe through the first through hole and the second through hole, and the sensor is fixedly connected with the mounting seat.

9. The gas stove of claim 8, wherein the inner wall of the second through hole is provided with an internal thread, the sensor is provided with an external thread, and the sensor is in threaded connection with the injection pipe.

10. The gas range according to any one of claims 1 to 4, further comprising a signal line, wherein one end of the signal line is electrically connected to the sensor, and the other end of the signal line is electrically connected to the controller.

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